/* Asynchronous subprocess control for GNU Emacs.
- Copyright (C) 1985, 86, 87, 88, 93, 94, 95, 96, 98, 1999, 2001
- Free Software Foundation, Inc.
+ Copyright (C) 1985, 86, 87, 88, 93, 94, 95, 96, 98, 1999,
+ 2001, 2002 Free Software Foundation, Inc.
This file is part of GNU Emacs.
#ifdef NEED_NET_ERRNO_H
#include <net/errno.h>
#endif /* NEED_NET_ERRNO_H */
+
+/* Are local (unix) sockets supported? */
+#if defined (HAVE_SYS_UN_H) && !defined (NO_SOCKETS_IN_FILE_SYSTEM)
+#if !defined (AF_LOCAL) && defined (AF_UNIX)
+#define AF_LOCAL AF_UNIX
+#endif
+#ifdef AF_LOCAL
+#define HAVE_LOCAL_SOCKETS
+#include <sys/un.h>
+#endif
+#endif
#endif /* HAVE_SOCKETS */
/* TERM is a poor-man's SLIP, used on GNU/Linux. */
#ifdef IRIS
#include <sys/sysmacros.h> /* for "minor" */
#endif /* not IRIS */
+
+#ifdef HAVE_SYS_WAIT
+#include <sys/wait.h>
+#endif
#include "systime.h"
#include "systty.h"
#include "composite.h"
#include "atimer.h"
-#define max(a, b) ((a) > (b) ? (a) : (b))
-
Lisp_Object Qprocessp;
-Lisp_Object Qrun, Qstop, Qsignal, Qopen, Qclosed;
+Lisp_Object Qrun, Qstop, Qsignal;
+Lisp_Object Qopen, Qclosed, Qconnect, Qfailed, Qlisten;
+Lisp_Object Qlocal, Qdatagram;
+Lisp_Object QCname, QCbuffer, QChost, QCservice, QCtype;
+Lisp_Object QClocal, QCremote, QCcoding;
+Lisp_Object QCserver, QCnowait, QCnoquery, QCstop;
+Lisp_Object QCsentinel, QClog, QCoptions;
Lisp_Object Qlast_nonmenu_event;
+/* QCfamily is declared and initialized in xfaces.c,
+ QCfilter in keyboard.c. */
+extern Lisp_Object QCfamily, QCfilter;
+
/* Qexit is declared and initialized in eval.c. */
+/* QCfamily is defined in xfaces.c. */
+extern Lisp_Object QCfamily;
+/* QCfilter is defined in keyboard.c. */
+extern Lisp_Object QCfilter;
+
/* a process object is a network connection when its childp field is neither
Qt nor Qnil but is instead a cons cell (HOSTNAME PORTNUM). */
#ifdef HAVE_SOCKETS
#define NETCONN_P(p) (GC_CONSP (XPROCESS (p)->childp))
+#define NETCONN1_P(p) (GC_CONSP ((p)->childp))
#else
#define NETCONN_P(p) 0
+#define NETCONN1_P(p) 0
#endif /* HAVE_SOCKETS */
/* Define first descriptor number available for subprocesses. */
/* Number of events for which the user or sentinel has been notified. */
int update_tick;
+/* Define NON_BLOCKING_CONNECT if we can support non-blocking connects. */
+
+#ifdef BROKEN_NON_BLOCKING_CONNECT
+#undef NON_BLOCKING_CONNECT
+#else
+#ifndef NON_BLOCKING_CONNECT
+#ifdef HAVE_SOCKETS
+#ifdef HAVE_SELECT
+#if defined (HAVE_GETPEERNAME) || defined (GNU_LINUX)
+#if defined (O_NONBLOCK) || defined (O_NDELAY)
+#if defined (EWOULDBLOCK) || defined (EINPROGRESS)
+#define NON_BLOCKING_CONNECT
+#endif /* EWOULDBLOCK || EINPROGRESS */
+#endif /* O_NONBLOCK || O_NDELAY */
+#endif /* HAVE_GETPEERNAME || GNU_LINUX */
+#endif /* HAVE_SELECT */
+#endif /* HAVE_SOCKETS */
+#endif /* NON_BLOCKING_CONNECT */
+#endif /* BROKEN_NON_BLOCKING_CONNECT */
+
+/* Define DATAGRAM_SOCKETS if datagrams can be used safely on
+ this system. We need to read full packets, so we need a
+ "non-destructive" select. So we require either native select,
+ or emulation of select using FIONREAD. */
+
+#ifdef BROKEN_DATAGRAM_SOCKETS
+#undef DATAGRAM_SOCKETS
+#else
+#ifndef DATAGRAM_SOCKETS
+#ifdef HAVE_SOCKETS
+#if defined (HAVE_SELECT) || defined (FIONREAD)
+#if defined (HAVE_SENDTO) && defined (HAVE_RECVFROM) && defined (EMSGSIZE)
+#define DATAGRAM_SOCKETS
+#endif /* HAVE_SENDTO && HAVE_RECVFROM && EMSGSIZE */
+#endif /* HAVE_SELECT || FIONREAD */
+#endif /* HAVE_SOCKETS */
+#endif /* DATAGRAM_SOCKETS */
+#endif /* BROKEN_DATAGRAM_SOCKETS */
+
+#ifdef TERM
+#undef NON_BLOCKING_CONNECT
+#undef DATAGRAM_SOCKETS
+#endif
+
+
#include "sysselect.h"
extern int keyboard_bit_set P_ ((SELECT_TYPE *));
static SELECT_TYPE non_process_wait_mask;
+/* Mask of bits indicating the descriptors that we wait for connect to
+ complete on. Once they complete, they are removed from this mask
+ and added to the input_wait_mask and non_keyboard_wait_mask. */
+
+static SELECT_TYPE connect_wait_mask;
+
+/* Number of bits set in connect_wait_mask. */
+static int num_pending_connects;
+
/* The largest descriptor currently in use for a process object. */
static int max_process_desc;
static struct coding_system *proc_decode_coding_system[MAXDESC];
static struct coding_system *proc_encode_coding_system[MAXDESC];
+#ifdef DATAGRAM_SOCKETS
+/* Table of `partner address' for datagram sockets. */
+struct sockaddr_and_len {
+ struct sockaddr *sa;
+ int len;
+} datagram_address[MAXDESC];
+#define DATAGRAM_CHAN_P(chan) (datagram_address[chan].sa != 0)
+#define DATAGRAM_CONN_P(proc) (PROCESSP (proc) && datagram_address[XINT (XPROCESS (proc)->infd)].sa != 0)
+#else
+#define DATAGRAM_CHAN_P(chan) (0)
+#define DATAGRAM_CONN_P(proc) (0)
+#endif
+
static Lisp_Object get_process ();
+static void exec_sentinel ();
extern EMACS_TIME timer_check ();
extern int timers_run;
extern Lisp_Object Vfile_name_coding_system, Vdefault_file_name_coding_system;
#ifdef HAVE_PTYS
+#ifdef HAVE_PTY_H
+#include <pty.h>
+#endif
/* The file name of the pty opened by allocate_pty. */
static char pty_name[24];
signame = "unknown";
string = build_string (signame);
string2 = build_string (coredump ? " (core dumped)\n" : "\n");
- XSTRING (string)->data[0] = DOWNCASE (XSTRING (string)->data[0]);
+ SSET (string, 0, DOWNCASE (SREF (string, 0)));
return concat2 (string, string2);
}
else if (EQ (symbol, Qexit))
return build_string ("finished\n");
string = Fnumber_to_string (make_number (code));
string2 = build_string (coredump ? " (core dumped)\n" : "\n");
- return concat2 (build_string ("exited abnormally with code "),
- concat2 (string, string2));
+ return concat3 (build_string ("exited abnormally with code "),
+ string, string2);
+ }
+ else if (EQ (symbol, Qfailed))
+ {
+ string = Fnumber_to_string (make_number (code));
+ string2 = build_string ("\n");
+ return concat3 (build_string ("failed with code "),
+ string, string2);
}
else
return Fcopy_sequence (Fsymbol_name (symbol));
}
\f
DEFUN ("processp", Fprocessp, Sprocessp, 1, 1, 0,
- "Return t if OBJECT is a process.")
- (object)
+ doc: /* Return t if OBJECT is a process. */)
+ (object)
Lisp_Object object;
{
return PROCESSP (object) ? Qt : Qnil;
}
DEFUN ("get-process", Fget_process, Sget_process, 1, 1, 0,
- "Return the process named NAME, or nil if there is none.")
- (name)
+ doc: /* Return the process named NAME, or nil if there is none. */)
+ (name)
register Lisp_Object name;
{
if (PROCESSP (name))
return name;
- CHECK_STRING (name, 0);
+ CHECK_STRING (name);
return Fcdr (Fassoc (name, Vprocess_alist));
}
DEFUN ("get-buffer-process", Fget_buffer_process, Sget_buffer_process, 1, 1, 0,
- "Return the (or a) process associated with BUFFER.\n\
-BUFFER may be a buffer or the name of one.")
- (buffer)
+ doc: /* Return the (or a) process associated with BUFFER.
+BUFFER may be a buffer or the name of one. */)
+ (buffer)
register Lisp_Object buffer;
{
register Lisp_Object buf, tail, proc;
if (NILP (obj))
obj = Fget_buffer (name);
if (NILP (obj))
- error ("Process %s does not exist", XSTRING (name)->data);
+ error ("Process %s does not exist", SDATA (name));
}
else if (NILP (name))
obj = Fcurrent_buffer ();
{
proc = Fget_buffer_process (obj);
if (NILP (proc))
- error ("Buffer %s has no process", XSTRING (XBUFFER (obj)->name)->data);
+ error ("Buffer %s has no process", SDATA (XBUFFER (obj)->name));
}
else
{
- CHECK_PROCESS (obj, 0);
+ CHECK_PROCESS (obj);
proc = obj;
}
return proc;
}
DEFUN ("delete-process", Fdelete_process, Sdelete_process, 1, 1, 0,
- "Delete PROCESS: kill it and forget about it immediately.\n\
-PROCESS may be a process, a buffer, the name of a process or buffer, or\n\
-nil, indicating the current buffer's process.")
- (process)
+ doc: /* Delete PROCESS: kill it and forget about it immediately.
+PROCESS may be a process, a buffer, the name of a process or buffer, or
+nil, indicating the current buffer's process. */)
+ (process)
register Lisp_Object process;
{
process = get_process (process);
}
\f
DEFUN ("process-status", Fprocess_status, Sprocess_status, 1, 1, 0,
- "Return the status of PROCESS.\n\
-The returned value is one of the following symbols:\n\
-run -- for a process that is running.\n\
-stop -- for a process stopped but continuable.\n\
-exit -- for a process that has exited.\n\
-signal -- for a process that has got a fatal signal.\n\
-open -- for a network stream connection that is open.\n\
-closed -- for a network stream connection that is closed.\n\
-nil -- if arg is a process name and no such process exists.\n\
-PROCESS may be a process, a buffer, the name of a process, or\n\
-nil, indicating the current buffer's process.")
- (process)
+ doc: /* Return the status of PROCESS.
+The returned value is one of the following symbols:
+run -- for a process that is running.
+stop -- for a process stopped but continuable.
+exit -- for a process that has exited.
+signal -- for a process that has got a fatal signal.
+open -- for a network stream connection that is open.
+listen -- for a network stream server that is listening.
+closed -- for a network stream connection that is closed.
+connect -- when waiting for a non-blocking connection to complete.
+failed -- when a non-blocking connection has failed.
+nil -- if arg is a process name and no such process exists.
+PROCESS may be a process, a buffer, the name of a process, or
+nil, indicating the current buffer's process. */)
+ (process)
register Lisp_Object process;
{
register struct Lisp_Process *p;
status = p->status;
if (CONSP (status))
status = XCAR (status);
- if (NETCONN_P (process))
+ if (NETCONN1_P (p))
{
- if (EQ (status, Qrun))
- status = Qopen;
- else if (EQ (status, Qexit))
+ if (EQ (status, Qexit))
status = Qclosed;
+ else if (EQ (p->command, Qt))
+ status = Qstop;
+ else if (EQ (status, Qrun))
+ status = Qopen;
}
return status;
}
DEFUN ("process-exit-status", Fprocess_exit_status, Sprocess_exit_status,
1, 1, 0,
- "Return the exit status of PROCESS or the signal number that killed it.\n\
-If PROCESS has not yet exited or died, return 0.")
- (process)
+ doc: /* Return the exit status of PROCESS or the signal number that killed it.
+If PROCESS has not yet exited or died, return 0. */)
+ (process)
register Lisp_Object process;
{
- CHECK_PROCESS (process, 0);
+ CHECK_PROCESS (process);
if (!NILP (XPROCESS (process)->raw_status_low))
update_status (XPROCESS (process));
if (CONSP (XPROCESS (process)->status))
}
DEFUN ("process-id", Fprocess_id, Sprocess_id, 1, 1, 0,
- "Return the process id of PROCESS.\n\
-This is the pid of the Unix process which PROCESS uses or talks to.\n\
-For a network connection, this value is nil.")
- (process)
+ doc: /* Return the process id of PROCESS.
+This is the pid of the Unix process which PROCESS uses or talks to.
+For a network connection, this value is nil. */)
+ (process)
register Lisp_Object process;
{
- CHECK_PROCESS (process, 0);
+ CHECK_PROCESS (process);
return XPROCESS (process)->pid;
}
DEFUN ("process-name", Fprocess_name, Sprocess_name, 1, 1, 0,
- "Return the name of PROCESS, as a string.\n\
-This is the name of the program invoked in PROCESS,\n\
-possibly modified to make it unique among process names.")
- (process)
+ doc: /* Return the name of PROCESS, as a string.
+This is the name of the program invoked in PROCESS,
+possibly modified to make it unique among process names. */)
+ (process)
register Lisp_Object process;
{
- CHECK_PROCESS (process, 0);
+ CHECK_PROCESS (process);
return XPROCESS (process)->name;
}
DEFUN ("process-command", Fprocess_command, Sprocess_command, 1, 1, 0,
- "Return the command that was executed to start PROCESS.\n\
-This is a list of strings, the first string being the program executed\n\
-and the rest of the strings being the arguments given to it.\n\
-For a non-child channel, this is nil.")
- (process)
+ doc: /* Return the command that was executed to start PROCESS.
+This is a list of strings, the first string being the program executed
+and the rest of the strings being the arguments given to it.
+For a non-child channel, this is nil. */)
+ (process)
register Lisp_Object process;
{
- CHECK_PROCESS (process, 0);
+ CHECK_PROCESS (process);
return XPROCESS (process)->command;
}
DEFUN ("process-tty-name", Fprocess_tty_name, Sprocess_tty_name, 1, 1, 0,
- "Return the name of the terminal PROCESS uses, or nil if none.\n\
-This is the terminal that the process itself reads and writes on,\n\
-not the name of the pty that Emacs uses to talk with that terminal.")
- (process)
+ doc: /* Return the name of the terminal PROCESS uses, or nil if none.
+This is the terminal that the process itself reads and writes on,
+not the name of the pty that Emacs uses to talk with that terminal. */)
+ (process)
register Lisp_Object process;
{
- CHECK_PROCESS (process, 0);
+ CHECK_PROCESS (process);
return XPROCESS (process)->tty_name;
}
DEFUN ("set-process-buffer", Fset_process_buffer, Sset_process_buffer,
- 2, 2, 0,
- "Set buffer associated with PROCESS to BUFFER (a buffer, or nil).")
- (process, buffer)
+ 2, 2, 0,
+ doc: /* Set buffer associated with PROCESS to BUFFER (a buffer, or nil). */)
+ (process, buffer)
register Lisp_Object process, buffer;
{
- CHECK_PROCESS (process, 0);
+ struct Lisp_Process *p;
+
+ CHECK_PROCESS (process);
if (!NILP (buffer))
- CHECK_BUFFER (buffer, 1);
- XPROCESS (process)->buffer = buffer;
+ CHECK_BUFFER (buffer);
+ p = XPROCESS (process);
+ p->buffer = buffer;
+ if (NETCONN1_P (p))
+ p->childp = Fplist_put (p->childp, QCbuffer, buffer);
return buffer;
}
DEFUN ("process-buffer", Fprocess_buffer, Sprocess_buffer,
- 1, 1, 0,
- "Return the buffer PROCESS is associated with.\n\
-Output from PROCESS is inserted in this buffer unless PROCESS has a filter.")
- (process)
+ 1, 1, 0,
+ doc: /* Return the buffer PROCESS is associated with.
+Output from PROCESS is inserted in this buffer unless PROCESS has a filter. */)
+ (process)
register Lisp_Object process;
{
- CHECK_PROCESS (process, 0);
+ CHECK_PROCESS (process);
return XPROCESS (process)->buffer;
}
DEFUN ("process-mark", Fprocess_mark, Sprocess_mark,
- 1, 1, 0,
- "Return the marker for the end of the last output from PROCESS.")
- (process)
+ 1, 1, 0,
+ doc: /* Return the marker for the end of the last output from PROCESS. */)
+ (process)
register Lisp_Object process;
{
- CHECK_PROCESS (process, 0);
+ CHECK_PROCESS (process);
return XPROCESS (process)->mark;
}
DEFUN ("set-process-filter", Fset_process_filter, Sset_process_filter,
- 2, 2, 0,
- "Give PROCESS the filter function FILTER; nil means no filter.\n\
-t means stop accepting output from the process.\n\
-When a process has a filter, each time it does output\n\
-the entire string of output is passed to the filter.\n\
-The filter gets two arguments: the process and the string of output.\n\
-If the process has a filter, its buffer is not used for output.")
- (process, filter)
+ 2, 2, 0,
+ doc: /* Give PROCESS the filter function FILTER; nil means no filter.
+t means stop accepting output from the process.
+When a process has a filter, each time it does output
+the entire string of output is passed to the filter.
+The filter gets two arguments: the process and the string of output.
+If the process has a filter, its buffer is not used for output. */)
+ (process, filter)
register Lisp_Object process, filter;
{
struct Lisp_Process *p;
- CHECK_PROCESS (process, 0);
+ CHECK_PROCESS (process);
p = XPROCESS (process);
/* Don't signal an error if the process' input file descriptor
if (XINT (p->infd) >= 0)
{
- if (EQ (filter, Qt))
+ if (EQ (filter, Qt) && !EQ (p->status, Qlisten))
{
FD_CLR (XINT (p->infd), &input_wait_mask);
FD_CLR (XINT (p->infd), &non_keyboard_wait_mask);
}
- else if (EQ (XPROCESS (process)->filter, Qt))
+ else if (EQ (p->filter, Qt)
+ && !EQ (p->command, Qt)) /* Network process not stopped. */
{
FD_SET (XINT (p->infd), &input_wait_mask);
FD_SET (XINT (p->infd), &non_keyboard_wait_mask);
}
p->filter = filter;
+ if (NETCONN1_P (p))
+ p->childp = Fplist_put (p->childp, QCfilter, filter);
return filter;
}
DEFUN ("process-filter", Fprocess_filter, Sprocess_filter,
- 1, 1, 0,
- "Returns the filter function of PROCESS; nil if none.\n\
-See `set-process-filter' for more info on filter functions.")
- (process)
+ 1, 1, 0,
+ doc: /* Returns the filter function of PROCESS; nil if none.
+See `set-process-filter' for more info on filter functions. */)
+ (process)
register Lisp_Object process;
{
- CHECK_PROCESS (process, 0);
+ CHECK_PROCESS (process);
return XPROCESS (process)->filter;
}
DEFUN ("set-process-sentinel", Fset_process_sentinel, Sset_process_sentinel,
- 2, 2, 0,
- "Give PROCESS the sentinel SENTINEL; nil for none.\n\
-The sentinel is called as a function when the process changes state.\n\
-It gets two arguments: the process, and a string describing the change.")
- (process, sentinel)
+ 2, 2, 0,
+ doc: /* Give PROCESS the sentinel SENTINEL; nil for none.
+The sentinel is called as a function when the process changes state.
+It gets two arguments: the process, and a string describing the change. */)
+ (process, sentinel)
register Lisp_Object process, sentinel;
{
- CHECK_PROCESS (process, 0);
+ CHECK_PROCESS (process);
XPROCESS (process)->sentinel = sentinel;
return sentinel;
}
DEFUN ("process-sentinel", Fprocess_sentinel, Sprocess_sentinel,
- 1, 1, 0,
- "Return the sentinel of PROCESS; nil if none.\n\
-See `set-process-sentinel' for more info on sentinels.")
- (process)
+ 1, 1, 0,
+ doc: /* Return the sentinel of PROCESS; nil if none.
+See `set-process-sentinel' for more info on sentinels. */)
+ (process)
register Lisp_Object process;
{
- CHECK_PROCESS (process, 0);
+ CHECK_PROCESS (process);
return XPROCESS (process)->sentinel;
}
DEFUN ("set-process-window-size", Fset_process_window_size,
- Sset_process_window_size, 3, 3, 0,
- "Tell PROCESS that it has logical window size HEIGHT and WIDTH.")
- (process, height, width)
+ Sset_process_window_size, 3, 3, 0,
+ doc: /* Tell PROCESS that it has logical window size HEIGHT and WIDTH. */)
+ (process, height, width)
register Lisp_Object process, height, width;
{
- CHECK_PROCESS (process, 0);
- CHECK_NATNUM (height, 0);
- CHECK_NATNUM (width, 0);
+ CHECK_PROCESS (process);
+ CHECK_NATNUM (height);
+ CHECK_NATNUM (width);
if (XINT (XPROCESS (process)->infd) < 0
|| set_window_size (XINT (XPROCESS (process)->infd),
}
DEFUN ("set-process-inherit-coding-system-flag",
- Fset_process_inherit_coding_system_flag,
- Sset_process_inherit_coding_system_flag, 2, 2, 0,
- "Determine whether buffer of PROCESS will inherit coding-system.\n\
-If the second argument FLAG is non-nil, then the variable\n\
-`buffer-file-coding-system' of the buffer associated with PROCESS\n\
-will be bound to the value of the coding system used to decode\n\
-the process output.\n\
-\n\
-This is useful when the coding system specified for the process buffer\n\
-leaves either the character code conversion or the end-of-line conversion\n\
-unspecified, or if the coding system used to decode the process output\n\
-is more appropriate for saving the process buffer.\n\
-\n\
-Binding the variable `inherit-process-coding-system' to non-nil before\n\
-starting the process is an alternative way of setting the inherit flag\n\
-for the process which will run.")
- (process, flag)
+ Fset_process_inherit_coding_system_flag,
+ Sset_process_inherit_coding_system_flag, 2, 2, 0,
+ doc: /* Determine whether buffer of PROCESS will inherit coding-system.
+If the second argument FLAG is non-nil, then the variable
+`buffer-file-coding-system' of the buffer associated with PROCESS
+will be bound to the value of the coding system used to decode
+the process output.
+
+This is useful when the coding system specified for the process buffer
+leaves either the character code conversion or the end-of-line conversion
+unspecified, or if the coding system used to decode the process output
+is more appropriate for saving the process buffer.
+
+Binding the variable `inherit-process-coding-system' to non-nil before
+starting the process is an alternative way of setting the inherit flag
+for the process which will run. */)
+ (process, flag)
register Lisp_Object process, flag;
{
- CHECK_PROCESS (process, 0);
+ CHECK_PROCESS (process);
XPROCESS (process)->inherit_coding_system_flag = flag;
return flag;
}
DEFUN ("process-inherit-coding-system-flag",
- Fprocess_inherit_coding_system_flag, Sprocess_inherit_coding_system_flag,
- 1, 1, 0,
- "Return the value of inherit-coding-system flag for PROCESS.\n\
-If this flag is t, `buffer-file-coding-system' of the buffer\n\
-associated with PROCESS will inherit the coding system used to decode\n\
-the process output.")
- (process)
+ Fprocess_inherit_coding_system_flag, Sprocess_inherit_coding_system_flag,
+ 1, 1, 0,
+ doc: /* Return the value of inherit-coding-system flag for PROCESS.
+If this flag is t, `buffer-file-coding-system' of the buffer
+associated with PROCESS will inherit the coding system used to decode
+the process output. */)
+ (process)
register Lisp_Object process;
{
- CHECK_PROCESS (process, 0);
+ CHECK_PROCESS (process);
return XPROCESS (process)->inherit_coding_system_flag;
}
-DEFUN ("process-kill-without-query", Fprocess_kill_without_query,
- Sprocess_kill_without_query, 1, 2, 0,
- "Say no query needed if PROCESS is running when Emacs is exited.\n\
-Optional second argument if non-nil says to require a query.\n\
-Value is t if a query was formerly required.")
- (process, value)
- register Lisp_Object process, value;
+DEFUN ("set-process-query-on-exit-flag",
+ Fset_process_query_on_exit_flag, Sset_process_query_on_exit_flag,
+ 2, 2, 0,
+ doc: /* Specify if query is needed for PROCESS when Emacs is exited.
+If the second argument FLAG is non-nil, emacs will query the user before
+exiting if PROCESS is running. */)
+ (process, flag)
+ register Lisp_Object process, flag;
{
- Lisp_Object tem;
-
- CHECK_PROCESS (process, 0);
- tem = XPROCESS (process)->kill_without_query;
- XPROCESS (process)->kill_without_query = Fnull (value);
+ CHECK_PROCESS (process);
+ XPROCESS (process)->kill_without_query = Fnull (flag);
+ return flag;
+}
- return Fnull (tem);
+DEFUN ("process-query-on-exit-flag",
+ Fprocess_query_on_exit_flag, Sprocess_query_on_exit_flag,
+ 1, 1, 0,
+ doc: /* Return the current value of query on exit flag for PROCESS. */)
+ (process)
+ register Lisp_Object process;
+{
+ CHECK_PROCESS (process);
+ return Fnull (XPROCESS (process)->kill_without_query);
}
+#ifdef DATAGRAM_SOCKETS
+Lisp_Object Fprocess_datagram_address ();
+#endif
+
DEFUN ("process-contact", Fprocess_contact, Sprocess_contact,
- 1, 1, 0,
- "Return the contact info of PROCESS; t for a real child.\n\
-For a net connection, the value is a cons cell of the form (HOST SERVICE).")
- (process)
- register Lisp_Object process;
+ 1, 2, 0,
+ doc: /* Return the contact info of PROCESS; t for a real child.
+For a net connection, the value depends on the optional KEY arg.
+If KEY is nil, value is a cons cell of the form (HOST SERVICE),
+if KEY is t, the complete contact information for the connection is
+returned, else the specific value for the keyword KEY is returned.
+See `make-network-process' for a list of keywords. */)
+ (process, key)
+ register Lisp_Object process, key;
{
- CHECK_PROCESS (process, 0);
- return XPROCESS (process)->childp;
+ Lisp_Object contact;
+
+ CHECK_PROCESS (process);
+ contact = XPROCESS (process)->childp;
+
+#ifdef DATAGRAM_SOCKETS
+ if (DATAGRAM_CONN_P (process)
+ && (EQ (key, Qt) || EQ (key, QCremote)))
+ contact = Fplist_put (contact, QCremote,
+ Fprocess_datagram_address (process));
+#endif
+
+ if (!NETCONN_P (process) || EQ (key, Qt))
+ return contact;
+ if (NILP (key))
+ return Fcons (Fplist_get (contact, QChost),
+ Fcons (Fplist_get (contact, QCservice), Qnil));
+ return Fplist_get (contact, key);
}
#if 0 /* Turned off because we don't currently record this info
in the process. Perhaps add it. */
DEFUN ("process-connection", Fprocess_connection, Sprocess_connection, 1, 1, 0,
- "Return the connection type of PROCESS.\n\
-The value is nil for a pipe, t or `pty' for a pty, or `stream' for\n\
-a socket connection.")
- (process)
+ doc: /* Return the connection type of PROCESS.
+The value is nil for a pipe, t or `pty' for a pty, or `stream' for
+a socket connection. */)
+ (process)
Lisp_Object process;
{
return XPROCESS (process)->type;
}
#endif
+
+#ifdef HAVE_SOCKETS
+DEFUN ("format-network-address", Fformat_network_address, Sformat_network_address,
+ 1, 1, 0,
+ doc: /* Convert network ADDRESS from internal format to a string.
+Returns nil if format of ADDRESS is invalid. */)
+ (address)
+ Lisp_Object address;
+{
+ register struct Lisp_Vector *p;
+ register unsigned char *cp;
+ register int i;
+
+ if (NILP (address))
+ return Qnil;
+
+ if (STRINGP (address)) /* AF_LOCAL */
+ return address;
+
+ if (VECTORP (address)) /* AF_INET */
+ {
+ register struct Lisp_Vector *p = XVECTOR (address);
+ Lisp_Object args[6];
+
+ if (p->size != 5)
+ return Qnil;
+
+ args[0] = build_string ("%d.%d.%d.%d:%d");
+ args[1] = p->contents[0];
+ args[2] = p->contents[1];
+ args[3] = p->contents[2];
+ args[4] = p->contents[3];
+ args[5] = p->contents[4];
+ return Fformat (6, args);
+ }
+
+ if (CONSP (address))
+ {
+ Lisp_Object args[2];
+ args[0] = build_string ("<Family %d>");
+ args[1] = Fcar (address);
+ return Fformat (2, args);
+
+ }
+
+ return Qnil;
+}
+#endif
\f
Lisp_Object
-list_processes_1 ()
+list_processes_1 (query_only)
+ Lisp_Object query_only;
{
register Lisp_Object tail, tem;
Lisp_Object proc, minspace, tem1;
register struct Lisp_Process *p;
- char tembuf[80];
+ char tembuf[300];
+ int w_proc, w_buffer, w_tty;
+ Lisp_Object i_status, i_buffer, i_tty, i_command;
+
+ w_proc = 4; /* Proc */
+ w_buffer = 6; /* Buffer */
+ w_tty = 0; /* Omit if no ttys */
+
+ for (tail = Vprocess_alist; !NILP (tail); tail = Fcdr (tail))
+ {
+ int i;
+
+ proc = Fcdr (Fcar (tail));
+ p = XPROCESS (proc);
+ if (NILP (p->childp))
+ continue;
+ if (!NILP (query_only) && !NILP (p->kill_without_query))
+ continue;
+ if (STRINGP (p->name)
+ && ( i = SCHARS (p->name), (i > w_proc)))
+ w_proc = i;
+ if (!NILP (p->buffer))
+ {
+ if (NILP (XBUFFER (p->buffer)->name) && w_buffer < 8)
+ w_buffer = 8; /* (Killed) */
+ else if ((i = SCHARS (XBUFFER (p->buffer)->name), (i > w_buffer)))
+ w_buffer = i;
+ }
+ if (STRINGP (p->tty_name)
+ && (i = SCHARS (p->tty_name), (i > w_tty)))
+ w_tty = i;
+ }
+
+ XSETFASTINT (i_status, w_proc + 1);
+ XSETFASTINT (i_buffer, XFASTINT (i_status) + 9);
+ if (w_tty)
+ {
+ XSETFASTINT (i_tty, XFASTINT (i_buffer) + w_buffer + 1);
+ XSETFASTINT (i_command, XFASTINT (i_buffer) + w_tty + 1);
+ } else {
+ i_tty = Qnil;
+ XSETFASTINT (i_command, XFASTINT (i_buffer) + w_buffer + 1);
+ }
XSETFASTINT (minspace, 1);
current_buffer->truncate_lines = Qt;
- write_string ("\
-Proc Status Buffer Tty Command\n\
----- ------ ------ --- -------\n", -1);
+ write_string ("Proc", -1);
+ Findent_to (i_status, minspace); write_string ("Status", -1);
+ Findent_to (i_buffer, minspace); write_string ("Buffer", -1);
+ if (!NILP (i_tty))
+ {
+ Findent_to (i_tty, minspace); write_string ("Tty", -1);
+ }
+ Findent_to (i_command, minspace); write_string ("Command", -1);
+ write_string ("\n", -1);
+
+ write_string ("----", -1);
+ Findent_to (i_status, minspace); write_string ("------", -1);
+ Findent_to (i_buffer, minspace); write_string ("------", -1);
+ if (!NILP (i_tty))
+ {
+ Findent_to (i_tty, minspace); write_string ("---", -1);
+ }
+ Findent_to (i_command, minspace); write_string ("-------", -1);
+ write_string ("\n", -1);
for (tail = Vprocess_alist; !NILP (tail); tail = Fcdr (tail))
{
p = XPROCESS (proc);
if (NILP (p->childp))
continue;
+ if (!NILP (query_only) && !NILP (p->kill_without_query))
+ continue;
Finsert (1, &p->name);
- Findent_to (make_number (13), minspace);
+ Findent_to (i_status, minspace);
if (!NILP (p->raw_status_low))
update_status (p);
#endif
Fprinc (symbol, Qnil);
}
- else if (NETCONN_P (proc))
+ else if (NETCONN1_P (p))
{
- if (EQ (symbol, Qrun))
- write_string ("open", -1);
- else if (EQ (symbol, Qexit))
+ if (EQ (symbol, Qexit))
write_string ("closed", -1);
+ else if (EQ (p->command, Qt))
+ write_string ("stopped", -1);
+ else if (EQ (symbol, Qrun))
+ write_string ("open", -1);
else
Fprinc (symbol, Qnil);
}
if (EQ (symbol, Qsignal) || EQ (symbol, Qexit))
remove_process (proc);
- Findent_to (make_number (22), minspace);
+ Findent_to (i_buffer, minspace);
if (NILP (p->buffer))
insert_string ("(none)");
else if (NILP (XBUFFER (p->buffer)->name))
else
Finsert (1, &XBUFFER (p->buffer)->name);
- Findent_to (make_number (37), minspace);
-
- if (STRINGP (p->tty_name))
- Finsert (1, &p->tty_name);
- else
- insert_string ("(none)");
+ if (!NILP (i_tty))
+ {
+ Findent_to (i_tty, minspace);
+ if (STRINGP (p->tty_name))
+ Finsert (1, &p->tty_name);
+ }
- Findent_to (make_number (49), minspace);
+ Findent_to (i_command, minspace);
- if (NETCONN_P (proc))
+ if (EQ (p->status, Qlisten))
+ {
+ Lisp_Object port = Fplist_get (p->childp, QCservice);
+ if (INTEGERP (port))
+ port = Fnumber_to_string (port);
+ if (NILP (port))
+ port = Fformat_network_address (Fplist_get (p->childp, QClocal));
+ sprintf (tembuf, "(network %s server on %s)\n",
+ (DATAGRAM_CHAN_P (XINT (p->infd)) ? "datagram" : "stream"),
+ (STRINGP (port) ? (char *)SDATA (port) : "?"));
+ insert_string (tembuf);
+ }
+ else if (NETCONN1_P (p))
{
- sprintf (tembuf, "(network stream connection to %s)\n",
- XSTRING (XCAR (p->childp))->data);
+ /* For a local socket, there is no host name,
+ so display service instead. */
+ Lisp_Object host = Fplist_get (p->childp, QChost);
+ if (!STRINGP (host))
+ {
+ host = Fplist_get (p->childp, QCservice);
+ if (INTEGERP (host))
+ host = Fnumber_to_string (host);
+ }
+ if (NILP (host))
+ host = Fformat_network_address (Fplist_get (p->childp, QCremote));
+ sprintf (tembuf, "(network %s connection to %s)\n",
+ (DATAGRAM_CHAN_P (XINT (p->infd)) ? "datagram" : "stream"),
+ (STRINGP (host) ? (char *)SDATA (host) : "?"));
insert_string (tembuf);
}
else
return Qnil;
}
-DEFUN ("list-processes", Flist_processes, Slist_processes, 0, 0, "",
- "Display a list of all processes.\n\
-Any process listed as exited or signaled is actually eliminated\n\
-after the listing is made.")
- ()
+DEFUN ("list-processes", Flist_processes, Slist_processes, 0, 1, "P",
+ doc: /* Display a list of all processes.
+If optional argument QUERY-ONLY is non-nil, only processes with
+the query-on-exit flag set will be listed.
+Any process listed as exited or signaled is actually eliminated
+after the listing is made. */)
+ (query_only)
+ Lisp_Object query_only;
{
internal_with_output_to_temp_buffer ("*Process List*",
- list_processes_1, Qnil);
+ list_processes_1, query_only);
return Qnil;
}
DEFUN ("process-list", Fprocess_list, Sprocess_list, 0, 0, 0,
- "Return a list of all processes.")
- ()
+ doc: /* Return a list of all processes. */)
+ ()
{
return Fmapcar (Qcdr, Vprocess_alist);
}
static Lisp_Object start_process_unwind ();
DEFUN ("start-process", Fstart_process, Sstart_process, 3, MANY, 0,
- "Start a program in a subprocess. Return the process object for it.\n\
-NAME is name for process. It is modified if necessary to make it unique.\n\
-BUFFER is the buffer or (buffer-name) to associate with the process.\n\
- Process output goes at end of that buffer, unless you specify\n\
- an output stream or filter function to handle the output.\n\
- BUFFER may be also nil, meaning that this process is not associated\n\
- with any buffer.\n\
-Third arg is program file name. It is searched for in PATH.\n\
-Remaining arguments are strings to give program as arguments.")
- (nargs, args)
+ doc: /* Start a program in a subprocess. Return the process object for it.
+NAME is name for process. It is modified if necessary to make it unique.
+BUFFER is the buffer or (buffer-name) to associate with the process.
+ Process output goes at end of that buffer, unless you specify
+ an output stream or filter function to handle the output.
+ BUFFER may be also nil, meaning that this process is not associated
+ with any buffer.
+Third arg is program file name. It is searched for in PATH.
+Remaining arguments are strings to give program as arguments.
+
+usage: (start-process NAME BUFFER PROGRAM &rest PROGRAM-ARGS) */)
+ (nargs, args)
int nargs;
register Lisp_Object *args;
{
register unsigned char **new_argv;
#endif
register int i;
- int count = specpdl_ptr - specpdl;
+ int count = SPECPDL_INDEX ();
buffer = args[1];
if (!NILP (buffer))
}
name = args[0];
- CHECK_STRING (name, 0);
+ CHECK_STRING (name);
program = args[2];
- CHECK_STRING (program, 2);
+ CHECK_STRING (program);
proc = make_process (name);
/* If an error occurs and we can't start the process, we want to
#ifdef VMS
/* Make a one member argv with all args concatenated
together separated by a blank. */
- len = STRING_BYTES (XSTRING (program)) + 2;
+ len = SBYTES (program) + 2;
for (i = 3; i < nargs; i++)
{
tem = args[i];
- CHECK_STRING (tem, i);
- len += STRING_BYTES (XSTRING (tem)) + 1; /* count the blank */
+ CHECK_STRING (tem);
+ len += SBYTES (tem) + 1; /* count the blank */
}
new_argv = (unsigned char *) alloca (len);
- strcpy (new_argv, XSTRING (program)->data);
+ strcpy (new_argv, SDATA (program));
for (i = 3; i < nargs; i++)
{
tem = args[i];
- CHECK_STRING (tem, i);
+ CHECK_STRING (tem);
strcat (new_argv, " ");
- strcat (new_argv, XSTRING (tem)->data);
+ strcat (new_argv, SDATA (tem));
}
/* Need to add code here to check for program existence on VMS */
#else /* not VMS */
new_argv = (unsigned char **) alloca ((nargs - 1) * sizeof (char *));
- /* If program file name is not absolute, search our path for it */
- if (!IS_DIRECTORY_SEP (XSTRING (program)->data[0])
- && !(XSTRING (program)->size > 1
- && IS_DEVICE_SEP (XSTRING (program)->data[1])))
+ /* If program file name is not absolute, search our path for it.
+ Put the name we will really use in TEM. */
+ if (!IS_DIRECTORY_SEP (SREF (program, 0))
+ && !(SCHARS (program) > 1
+ && IS_DEVICE_SEP (SREF (program, 1))))
{
struct gcpro gcpro1, gcpro2, gcpro3, gcpro4;
tem = Qnil;
GCPRO4 (name, program, buffer, current_dir);
- openp (Vexec_path, program, EXEC_SUFFIXES, &tem, 1);
+ openp (Vexec_path, program, Vexec_suffixes, &tem, make_number (X_OK));
UNGCPRO;
if (NILP (tem))
report_file_error ("Searching for program", Fcons (program, Qnil));
tem = Fexpand_file_name (tem, Qnil);
- tem = ENCODE_FILE (tem);
- new_argv[0] = XSTRING (tem)->data;
}
else
{
if (!NILP (Ffile_directory_p (program)))
error ("Specified program for new process is a directory");
-
- tem = ENCODE_FILE (program);
- new_argv[0] = XSTRING (tem)->data;
+ tem = program;
}
+ /* If program file name starts with /: for quoting a magic name,
+ discard that. */
+ if (SBYTES (tem) > 2 && SREF (tem, 0) == '/'
+ && SREF (tem, 1) == ':')
+ tem = Fsubstring (tem, make_number (2), Qnil);
+
+ /* Encode the file name and put it in NEW_ARGV.
+ That's where the child will use it to execute the program. */
+ tem = ENCODE_FILE (tem);
+ new_argv[0] = SDATA (tem);
+
/* Here we encode arguments by the coding system used for sending
data to the process. We don't support using different coding
systems for encoding arguments and for encoding data sent to the
for (i = 3; i < nargs; i++)
{
tem = args[i];
- CHECK_STRING (tem, i);
+ CHECK_STRING (tem);
if (STRING_MULTIBYTE (tem))
tem = (code_convert_string_norecord
(tem, XPROCESS (proc)->encode_coding_system, 1));
- new_argv[i - 2] = XSTRING (tem)->data;
+ new_argv[i - 2] = SDATA (tem);
}
new_argv[i - 2] = 0;
#endif /* not VMS */
#ifndef USE_CRT_DLL
extern char **environ;
#endif
- Lisp_Object buffer = XPROCESS (process)->buffer;
inchannel = outchannel = -1;
if (inchannel >= 0)
{
-#ifndef USG
- /* On USG systems it does not work to open the pty's tty here
- and then close and reopen it in the child. */
+#if ! defined (USG) || defined (USG_SUBTTY_WORKS)
+ /* On most USG systems it does not work to open the pty's tty here,
+ then close it and reopen it in the child. */
#ifdef O_NOCTTY
/* Don't let this terminal become our controlling terminal
(in case we don't have one). */
report_file_error ("Opening pty", Qnil);
#else
forkin = forkout = -1;
-#endif /* not USG */
+#endif /* not USG, or USG_SUBTTY_WORKS */
pty_flag = 1;
}
else
#ifdef SIGCHLD
sigaddset (&blocked, SIGCHLD);
#endif
-#ifdef HAVE_VFORK
+#ifdef HAVE_WORKING_VFORK
/* On many hosts (e.g. Solaris 2.4), if a vforked child calls `signal',
this sets the parent's signal handlers as well as the child's.
So delay all interrupts whose handlers the child might munge,
#ifdef AIX
sigaddset (&blocked, SIGHUP ); sigaction (SIGHUP , 0, &sighup_action );
#endif
-#endif /* HAVE_VFORK */
+#endif /* HAVE_WORKING_VFORK */
sigprocmask (SIG_BLOCK, &blocked, &procmask);
#else /* !POSIX_SIGNALS */
#ifdef SIGCHLD
/* Restore the signal state whether vfork succeeded or not.
(We will signal an error, below, if it failed.) */
#ifdef POSIX_SIGNALS
-#ifdef HAVE_VFORK
+#ifdef HAVE_WORKING_VFORK
/* Restore the parent's signal handlers. */
sigaction (SIGINT, &sigint_action, 0);
sigaction (SIGQUIT, &sigquit_action, 0);
#ifdef AIX
sigaction (SIGHUP, &sighup_action, 0);
#endif
-#endif /* HAVE_VFORK */
+#endif /* HAVE_WORKING_VFORK */
/* Stop blocking signals in the parent. */
sigprocmask (SIG_SETMASK, &procmask, 0);
#else /* !POSIX_SIGNALS */
}
#endif /* not VMS */
+\f
#ifdef HAVE_SOCKETS
-/* open a TCP network connection to a given HOST/SERVICE. Treated
- exactly like a normal process when reading and writing. Only
+/* Convert an internal struct sockaddr to a lisp object (vector or string).
+ The address family of sa is not included in the result. */
+
+static Lisp_Object
+conv_sockaddr_to_lisp (sa, len)
+ struct sockaddr *sa;
+ int len;
+{
+ Lisp_Object address;
+ int i;
+ unsigned char *cp;
+ register struct Lisp_Vector *p;
+
+ switch (sa->sa_family)
+ {
+ case AF_INET:
+ {
+ struct sockaddr_in *sin = (struct sockaddr_in *) sa;
+ len = sizeof (sin->sin_addr) + 1;
+ address = Fmake_vector (make_number (len), Qnil);
+ p = XVECTOR (address);
+ p->contents[--len] = make_number (ntohs (sin->sin_port));
+ cp = (unsigned char *)&sin->sin_addr;
+ break;
+ }
+#ifdef HAVE_LOCAL_SOCKETS
+ case AF_LOCAL:
+ {
+ struct sockaddr_un *sockun = (struct sockaddr_un *) sa;
+ for (i = 0; i < sizeof (sockun->sun_path); i++)
+ if (sockun->sun_path[i] == 0)
+ break;
+ return make_unibyte_string (sockun->sun_path, i);
+ }
+#endif
+ default:
+ len -= sizeof (sa->sa_family);
+ address = Fcons (make_number (sa->sa_family),
+ Fmake_vector (make_number (len), Qnil));
+ p = XVECTOR (XCDR (address));
+ cp = (unsigned char *) sa + sizeof (sa->sa_family);
+ break;
+ }
+
+ i = 0;
+ while (i < len)
+ p->contents[i++] = make_number (*cp++);
+
+ return address;
+}
+
+
+/* Get family and required size for sockaddr structure to hold ADDRESS. */
+
+static int
+get_lisp_to_sockaddr_size (address, familyp)
+ Lisp_Object address;
+ int *familyp;
+{
+ register struct Lisp_Vector *p;
+
+ if (VECTORP (address))
+ {
+ p = XVECTOR (address);
+ if (p->size == 5)
+ {
+ *familyp = AF_INET;
+ return sizeof (struct sockaddr_in);
+ }
+ }
+#ifdef HAVE_LOCAL_SOCKETS
+ else if (STRINGP (address))
+ {
+ *familyp = AF_LOCAL;
+ return sizeof (struct sockaddr_un);
+ }
+#endif
+ else if (CONSP (address) && INTEGERP (XCAR (address)) && VECTORP (XCDR (address)))
+ {
+ struct sockaddr *sa;
+ *familyp = XINT (XCAR (address));
+ p = XVECTOR (XCDR (address));
+ return p->size + sizeof (sa->sa_family);
+ }
+ return 0;
+}
+
+/* Convert an address object (vector or string) to an internal sockaddr.
+ Format of address has already been validated by size_lisp_to_sockaddr. */
+
+static void
+conv_lisp_to_sockaddr (family, address, sa, len)
+ int family;
+ Lisp_Object address;
+ struct sockaddr *sa;
+ int len;
+{
+ register struct Lisp_Vector *p;
+ register unsigned char *cp;
+ register int i;
+
+ bzero (sa, len);
+ sa->sa_family = family;
+
+ if (VECTORP (address))
+ {
+ p = XVECTOR (address);
+ if (family == AF_INET)
+ {
+ struct sockaddr_in *sin = (struct sockaddr_in *) sa;
+ len = sizeof (sin->sin_addr) + 1;
+ i = XINT (p->contents[--len]);
+ sin->sin_port = htons (i);
+ cp = (unsigned char *)&sin->sin_addr;
+ }
+ }
+ else if (STRINGP (address))
+ {
+#ifdef HAVE_LOCAL_SOCKETS
+ if (family == AF_LOCAL)
+ {
+ struct sockaddr_un *sockun = (struct sockaddr_un *) sa;
+ cp = SDATA (address);
+ for (i = 0; i < sizeof (sockun->sun_path) && *cp; i++)
+ sockun->sun_path[i] = *cp++;
+ }
+#endif
+ return;
+ }
+ else
+ {
+ p = XVECTOR (XCDR (address));
+ cp = (unsigned char *)sa + sizeof (sa->sa_family);
+ }
+
+ for (i = 0; i < len; i++)
+ if (INTEGERP (p->contents[i]))
+ *cp++ = XFASTINT (p->contents[i]) & 0xff;
+}
+
+#ifdef DATAGRAM_SOCKETS
+DEFUN ("process-datagram-address", Fprocess_datagram_address, Sprocess_datagram_address,
+ 1, 1, 0,
+ doc: /* Get the current datagram address associated with PROCESS. */)
+ (process)
+ Lisp_Object process;
+{
+ int channel;
+
+ CHECK_PROCESS (process);
+
+ if (!DATAGRAM_CONN_P (process))
+ return Qnil;
+
+ channel = XINT (XPROCESS (process)->infd);
+ return conv_sockaddr_to_lisp (datagram_address[channel].sa,
+ datagram_address[channel].len);
+}
+
+DEFUN ("set-process-datagram-address", Fset_process_datagram_address, Sset_process_datagram_address,
+ 2, 2, 0,
+ doc: /* Set the datagram address for PROCESS to ADDRESS.
+Returns nil upon error setting address, ADDRESS otherwise. */)
+ (process, address)
+ Lisp_Object process, address;
+{
+ int channel;
+ int family, len;
+
+ CHECK_PROCESS (process);
+
+ if (!DATAGRAM_CONN_P (process))
+ return Qnil;
+
+ channel = XINT (XPROCESS (process)->infd);
+
+ len = get_lisp_to_sockaddr_size (address, &family);
+ if (datagram_address[channel].len != len)
+ return Qnil;
+ conv_lisp_to_sockaddr (family, address, datagram_address[channel].sa, len);
+ return address;
+}
+#endif
+\f
+
+static struct socket_options {
+ /* The name of this option. Should be lowercase version of option
+ name without SO_ prefix. */
+ char *name;
+ /* Length of name. */
+ int nlen;
+ /* Option level SOL_... */
+ int optlevel;
+ /* Option number SO_... */
+ int optnum;
+ enum { SOPT_UNKNOWN, SOPT_BOOL, SOPT_INT, SOPT_STR, SOPT_LINGER } opttype;
+} socket_options[] =
+ {
+#ifdef SO_BINDTODEVICE
+ { "bindtodevice", 12, SOL_SOCKET, SO_BINDTODEVICE, SOPT_STR },
+#endif
+#ifdef SO_BROADCAST
+ { "broadcast", 9, SOL_SOCKET, SO_BROADCAST, SOPT_BOOL },
+#endif
+#ifdef SO_DONTROUTE
+ { "dontroute", 9, SOL_SOCKET, SO_DONTROUTE, SOPT_BOOL },
+#endif
+#ifdef SO_KEEPALIVE
+ { "keepalive", 9, SOL_SOCKET, SO_KEEPALIVE, SOPT_BOOL },
+#endif
+#ifdef SO_LINGER
+ { "linger", 6, SOL_SOCKET, SO_LINGER, SOPT_LINGER },
+#endif
+#ifdef SO_OOBINLINE
+ { "oobinline", 9, SOL_SOCKET, SO_OOBINLINE, SOPT_BOOL },
+#endif
+#ifdef SO_PRIORITY
+ { "priority", 8, SOL_SOCKET, SO_PRIORITY, SOPT_INT },
+#endif
+#ifdef SO_REUSEADDR
+ { "reuseaddr", 9, SOL_SOCKET, SO_REUSEADDR, SOPT_BOOL },
+#endif
+ { 0, 0, 0, 0, SOPT_UNKNOWN }
+ };
+
+/* Process list of socket options OPTS on socket S.
+ Only check if options are supported is S < 0.
+ If NO_ERROR is non-zero, continue silently if an option
+ cannot be set.
+
+ Each element specifies one option. An element is either a string
+ "OPTION=VALUE" or a cons (OPTION . VALUE) where OPTION is a string
+ or a symbol. */
+
+static int
+set_socket_options (s, opts, no_error)
+ int s;
+ Lisp_Object opts;
+ int no_error;
+{
+ if (!CONSP (opts))
+ opts = Fcons (opts, Qnil);
+
+ while (CONSP (opts))
+ {
+ Lisp_Object opt;
+ Lisp_Object val;
+ char *name, *arg;
+ struct socket_options *sopt;
+ int ret = 0;
+
+ opt = XCAR (opts);
+ opts = XCDR (opts);
+
+ name = 0;
+ val = Qt;
+ if (CONSP (opt))
+ {
+ val = XCDR (opt);
+ opt = XCAR (opt);
+ }
+ if (STRINGP (opt))
+ name = (char *) SDATA (opt);
+ else if (SYMBOLP (opt))
+ name = (char *) SDATA (SYMBOL_NAME (opt));
+ else {
+ error ("Mal-formed option list");
+ return 0;
+ }
+
+ if (strncmp (name, "no", 2) == 0)
+ {
+ val = Qnil;
+ name += 2;
+ }
+
+ arg = 0;
+ for (sopt = socket_options; sopt->name; sopt++)
+ if (strncmp (name, sopt->name, sopt->nlen) == 0)
+ {
+ if (name[sopt->nlen] == 0)
+ break;
+ if (name[sopt->nlen] == '=')
+ {
+ arg = name + sopt->nlen + 1;
+ break;
+ }
+ }
+
+ switch (sopt->opttype)
+ {
+ case SOPT_BOOL:
+ {
+ int optval;
+ if (s < 0)
+ return 1;
+ if (arg)
+ optval = (*arg == '0' || *arg == 'n') ? 0 : 1;
+ else if (INTEGERP (val))
+ optval = XINT (val) == 0 ? 0 : 1;
+ else
+ optval = NILP (val) ? 0 : 1;
+ ret = setsockopt (s, sopt->optlevel, sopt->optnum,
+ &optval, sizeof (optval));
+ break;
+ }
+
+ case SOPT_INT:
+ {
+ int optval;
+ if (arg)
+ optval = atoi(arg);
+ else if (INTEGERP (val))
+ optval = XINT (val);
+ else
+ error ("Bad option argument for %s", name);
+ if (s < 0)
+ return 1;
+ ret = setsockopt (s, sopt->optlevel, sopt->optnum,
+ &optval, sizeof (optval));
+ break;
+ }
+
+ case SOPT_STR:
+ {
+ if (!arg)
+ {
+ if (NILP (val))
+ arg = "";
+ else if (STRINGP (val))
+ arg = (char *) SDATA (val);
+ else if (XSYMBOL (val))
+ arg = (char *) SDATA (SYMBOL_NAME (val));
+ else
+ error ("Invalid argument to %s option", name);
+ }
+ ret = setsockopt (s, sopt->optlevel, sopt->optnum,
+ arg, strlen (arg));
+ }
+
+#ifdef SO_LINGER
+ case SOPT_LINGER:
+ {
+ struct linger linger;
+
+ linger.l_onoff = 1;
+ linger.l_linger = 0;
+
+ if (s < 0)
+ return 1;
+
+ if (arg)
+ {
+ if (*arg == 'n' || *arg == 't' || *arg == 'y')
+ linger.l_onoff = (*arg == 'n') ? 0 : 1;
+ else
+ linger.l_linger = atoi(arg);
+ }
+ else if (INTEGERP (val))
+ linger.l_linger = XINT (val);
+ else
+ linger.l_onoff = NILP (val) ? 0 : 1;
+ ret = setsockopt (s, sopt->optlevel, sopt->optnum,
+ &linger, sizeof (linger));
+ break;
+ }
+#endif
+ default:
+ if (s < 0)
+ return 0;
+ if (no_error)
+ continue;
+ error ("Unsupported option: %s", name);
+ }
+ if (ret < 0 && ! no_error)
+ report_file_error ("Cannot set network option: %s", opt);
+ }
+ return 1;
+}
+
+DEFUN ("set-network-process-options",
+ Fset_network_process_options, Sset_network_process_options,
+ 1, MANY, 0,
+ doc: /* Set one or more options for network process PROCESS.
+Each option is either a string "OPT=VALUE" or a cons (OPT . VALUE).
+A boolean value is false if it either zero or nil, true otherwise.
+
+The following options are known. Consult the relevant system manual
+pages for more information.
+
+bindtodevice=NAME -- bind to interface NAME, or remove binding if nil.
+broadcast=BOOL -- Allow send and receive of datagram broadcasts.
+dontroute=BOOL -- Only send to directly connected hosts.
+keepalive=BOOL -- Send keep-alive messages on network stream.
+linger=BOOL or TIMEOUT -- Send queued messages before closing.
+oobinline=BOOL -- Place out-of-band data in receive data stream.
+priority=INT -- Set protocol defined priority for sent packets.
+reuseaddr=BOOL -- Allow reusing a recently used address.
+
+usage: (set-network-process-options PROCESS &rest OPTIONS) */)
+ (nargs, args)
+ int nargs;
+ Lisp_Object *args;
+{
+ Lisp_Object process;
+ Lisp_Object opts;
+
+ process = args[0];
+ CHECK_PROCESS (process);
+ if (nargs > 1 && XINT (XPROCESS (process)->infd) >= 0)
+ {
+ opts = Flist (nargs, args);
+ set_socket_options (XINT (XPROCESS (process)->infd), opts, 0);
+ }
+ return process;
+}
+\f
+/* A version of request_sigio suitable for a record_unwind_protect. */
+
+Lisp_Object
+unwind_request_sigio (dummy)
+ Lisp_Object dummy;
+{
+ if (interrupt_input)
+ request_sigio ();
+ return Qnil;
+}
+
+/* Create a network stream/datagram client/server process. Treated
+ exactly like a normal process when reading and writing. Primary
differences are in status display and process deletion. A network
connection has no PID; you cannot signal it. All you can do is
- deactivate and close it via delete-process */
-
-DEFUN ("open-network-stream", Fopen_network_stream, Sopen_network_stream,
- 4, 4, 0,
- "Open a TCP connection for a service to a host.\n\
-Returns a subprocess-object to represent the connection.\n\
-Input and output work as for subprocesses; `delete-process' closes it.\n\
-Args are NAME BUFFER HOST SERVICE.\n\
-NAME is name for process. It is modified if necessary to make it unique.\n\
-BUFFER is the buffer (or buffer-name) to associate with the process.\n\
- Process output goes at end of that buffer, unless you specify\n\
- an output stream or filter function to handle the output.\n\
- BUFFER may be also nil, meaning that this process is not associated\n\
- with any buffer\n\
-Third arg is name of the host to connect to, or its IP address.\n\
-Fourth arg SERVICE is name of the service desired, or an integer\n\
- specifying a port number to connect to.")
- (name, buffer, host, service)
- Lisp_Object name, buffer, host, service;
+ stop/continue it and deactivate/close it via delete-process */
+
+DEFUN ("make-network-process", Fmake_network_process, Smake_network_process,
+ 0, MANY, 0,
+ doc: /* Create and return a network server or client process.
+
+In Emacs, network connections are represented by process objects, so
+input and output work as for subprocesses and `delete-process' closes
+a network connection. However, a network process has no process id,
+it cannot be signalled, and the status codes are different from normal
+processes.
+
+Arguments are specified as keyword/argument pairs. The following
+arguments are defined:
+
+:name NAME -- NAME is name for process. It is modified if necessary
+to make it unique.
+
+:buffer BUFFER -- BUFFER is the buffer (or buffer-name) to associate
+with the process. Process output goes at end of that buffer, unless
+you specify an output stream or filter function to handle the output.
+BUFFER may be also nil, meaning that this process is not associated
+with any buffer.
+
+:host HOST -- HOST is name of the host to connect to, or its IP
+address. The symbol `local' specifies the local host. If specified
+for a server process, it must be a valid name or address for the local
+host, and only clients connecting to that address will be accepted.
+
+:service SERVICE -- SERVICE is name of the service desired, or an
+integer specifying a port number to connect to. If SERVICE is t,
+a random port number is selected for the server.
+
+:type TYPE -- TYPE is the type of connection. The default (nil) is a
+stream type connection, `datagram' creates a datagram type connection.
+
+:family FAMILY -- FAMILY is the address (and protocol) family for the
+service specified by HOST and SERVICE. The default address family is
+Inet (or IPv4) for the host and port number specified by HOST and
+SERVICE. Other address families supported are:
+ local -- for a local (i.e. UNIX) address specified by SERVICE.
+
+:local ADDRESS -- ADDRESS is the local address used for the connection.
+This parameter is ignored when opening a client process. When specified
+for a server process, the FAMILY, HOST and SERVICE args are ignored.
+
+:remote ADDRESS -- ADDRESS is the remote partner's address for the
+connection. This parameter is ignored when opening a stream server
+process. For a datagram server process, it specifies the initial
+setting of the remote datagram address. When specified for a client
+process, the FAMILY, HOST, and SERVICE args are ignored.
+
+The format of ADDRESS depends on the address family:
+- An IPv4 address is represented as an vector of integers [A B C D P]
+corresponding to numeric IP address A.B.C.D and port number P.
+- A local address is represented as a string with the address in the
+local address space.
+- An "unsupported family" address is represented by a cons (F . AV)
+where F is the family number and AV is a vector containing the socket
+address data with one element per address data byte. Do not rely on
+this format in portable code, as it may depend on implementation
+defined constants, data sizes, and data structure alignment.
+
+:coding CODING -- CODING is coding system for this process.
+
+:options OPTIONS -- Set the specified options for the network process.
+See `set-network-process-options' for details.
+
+:nowait BOOL -- If BOOL is non-nil for a stream type client process,
+return without waiting for the connection to complete; instead, the
+sentinel function will be called with second arg matching "open" (if
+successful) or "failed" when the connect completes. Default is to use
+a blocking connect (i.e. wait) for stream type connections.
+
+:noquery BOOL -- Query the user unless BOOL is non-nil, and process is
+running when emacs is exited.
+
+:stop BOOL -- Start process in the `stopped' state if BOOL non-nil.
+In the stopped state, a server process does not accept new
+connections, and a client process does not handle incoming traffic.
+The stopped state is cleared by `continue-process' and set by
+`stop-process'.
+
+:filter FILTER -- Install FILTER as the process filter.
+
+:sentinel SENTINEL -- Install SENTINEL as the process sentinel.
+
+:log LOG -- Install LOG as the server process log function. This
+function is called when the server accepts a network connection from a
+client. The arguments are SERVER, CLIENT, and MESSAGE, where SERVER
+is the server process, CLIENT is the new process for the connection,
+and MESSAGE is a string.
+
+:server BOOL -- if BOOL is non-nil, create a server process for the
+specified FAMILY, SERVICE, and connection type (stream or datagram).
+Default is a client process.
+
+A server process will listen for and accept connections from
+clients. When a client connection is accepted, a new network process
+is created for the connection with the following parameters:
+- The client's process name is constructed by concatenating the server
+process' NAME and a client identification string.
+- If the FILTER argument is non-nil, the client process will not get a
+separate process buffer; otherwise, the client's process buffer is a newly
+created buffer named after the server process' BUFFER name or process
+NAME concatenated with the client identification string.
+- The connection type and the process filter and sentinel parameters are
+inherited from the server process' TYPE, FILTER and SENTINEL.
+- The client process' contact info is set according to the client's
+addressing information (typically an IP address and a port number).
+
+Notice that the FILTER and SENTINEL args are never used directly by
+the server process. Also, the BUFFER argument is not used directly by
+the server process, but via the optional :log function, accepted (and
+failed) connections may be logged in the server process' buffer.
+
+usage: (make-network-process &rest ARGS) */)
+ (nargs, args)
+ int nargs;
+ Lisp_Object *args;
{
Lisp_Object proc;
+ Lisp_Object contact;
+ struct Lisp_Process *p;
#ifdef HAVE_GETADDRINFO
- struct addrinfo hints, *res, *lres;
- int ret = 0;
- int xerrno = 0;
- char *portstring, portbuf[128];
+ struct addrinfo ai, *res, *lres;
+ struct addrinfo hints;
+ char *portstring, portbuf[128];
#else /* HAVE_GETADDRINFO */
- struct sockaddr_in address;
- struct servent *svc_info;
- struct hostent *host_info_ptr, host_info;
- char *(addr_list[2]);
- IN_ADDR numeric_addr;
- int port;
+ struct _emacs_addrinfo
+ {
+ int ai_family;
+ int ai_socktype;
+ int ai_protocol;
+ int ai_addrlen;
+ struct sockaddr *ai_addr;
+ struct _emacs_addrinfo *ai_next;
+ } ai, *res, *lres;
#endif /* HAVE_GETADDRINFO */
+ struct sockaddr_in address_in;
+#ifdef HAVE_LOCAL_SOCKETS
+ struct sockaddr_un address_un;
+#endif
+ int port;
+ int ret = 0;
+ int xerrno = 0;
int s = -1, outch, inch;
- struct gcpro gcpro1, gcpro2, gcpro3, gcpro4;
+ struct gcpro gcpro1;
int retry = 0;
- int count = specpdl_ptr - specpdl;
+ int count = SPECPDL_INDEX ();
int count1;
+ Lisp_Object QCaddress; /* one of QClocal or QCremote */
+ Lisp_Object tem;
+ Lisp_Object name, buffer, host, service, address;
+ Lisp_Object filter, sentinel;
+ int is_non_blocking_client = 0;
+ int is_server = 0;
+ int socktype;
+ int family = -1;
+
+ if (nargs == 0)
+ return Qnil;
+
+ /* Save arguments for process-contact and clone-process. */
+ contact = Flist (nargs, args);
+ GCPRO1 (contact);
#ifdef WINDOWSNT
/* Ensure socket support is loaded if available. */
init_winsock (TRUE);
#endif
- GCPRO4 (name, buffer, host, service);
- CHECK_STRING (name, 0);
- CHECK_STRING (host, 0);
+ /* :type TYPE (nil: stream, datagram */
+ tem = Fplist_get (contact, QCtype);
+ if (NILP (tem))
+ socktype = SOCK_STREAM;
+#ifdef DATAGRAM_SOCKETS
+ else if (EQ (tem, Qdatagram))
+ socktype = SOCK_DGRAM;
+#endif
+ else
+ error ("Unsupported connection type");
-#ifdef HAVE_GETADDRINFO
- /* SERVICE can either be a string or int.
- Convert to a C string for later use by getaddrinfo. */
- if (INTEGERP (service))
+ /* :server BOOL */
+ tem = Fplist_get (contact, QCserver);
+ if (!NILP (tem))
{
- sprintf (portbuf, "%ld", (long) XINT (service));
- portstring = portbuf;
+ /* Don't support network sockets when non-blocking mode is
+ not available, since a blocked Emacs is not useful. */
+#if defined(TERM) || (!defined(O_NONBLOCK) && !defined(O_NDELAY))
+ error ("Network servers not supported");
+#else
+ is_server = 1;
+#endif
}
- else
+
+ /* Make QCaddress an alias for :local (server) or :remote (client). */
+ QCaddress = is_server ? QClocal : QCremote;
+
+ /* :wait BOOL */
+ if (!is_server && socktype == SOCK_STREAM
+ && (tem = Fplist_get (contact, QCnowait), !NILP (tem)))
{
- CHECK_STRING (service, 0);
- portstring = XSTRING (service)->data;
+#ifndef NON_BLOCKING_CONNECT
+ error ("Non-blocking connect not supported");
+#else
+ is_non_blocking_client = 1;
+#endif
}
-#else /* HAVE_GETADDRINFO */
+
+ name = Fplist_get (contact, QCname);
+ buffer = Fplist_get (contact, QCbuffer);
+ filter = Fplist_get (contact, QCfilter);
+ sentinel = Fplist_get (contact, QCsentinel);
+
+ CHECK_STRING (name);
+
+#ifdef TERM
+ /* Let's handle TERM before things get complicated ... */
+ host = Fplist_get (contact, QChost);
+ CHECK_STRING (host);
+
+ service = Fplist_get (contact, QCservice);
if (INTEGERP (service))
port = htons ((unsigned short) XINT (service));
else
{
- CHECK_STRING (service, 0);
- svc_info = getservbyname (XSTRING (service)->data, "tcp");
+ struct servent *svc_info;
+ CHECK_STRING (service);
+ svc_info = getservbyname (SDATA (service), "tcp");
if (svc_info == 0)
- error ("Unknown service \"%s\"", XSTRING (service)->data);
+ error ("Unknown service: %s", SDATA (service));
port = svc_info->s_port;
}
-#endif /* HAVE_GETADDRINFO */
+ s = connect_server (0);
+ if (s < 0)
+ report_file_error ("error creating socket", Fcons (name, Qnil));
+ send_command (s, C_PORT, 0, "%s:%d", SDATA (host), ntohs (port));
+ send_command (s, C_DUMB, 1, 0);
+
+#else /* not TERM */
+
+ /* Initialize addrinfo structure in case we don't use getaddrinfo. */
+ ai.ai_socktype = socktype;
+ ai.ai_protocol = 0;
+ ai.ai_next = NULL;
+ res = &ai;
+
+ /* :local ADDRESS or :remote ADDRESS */
+ address = Fplist_get (contact, QCaddress);
+ if (!NILP (address))
+ {
+ host = service = Qnil;
+
+ if (!(ai.ai_addrlen = get_lisp_to_sockaddr_size (address, &family)))
+ error ("Malformed :address");
+ ai.ai_family = family;
+ ai.ai_addr = alloca (ai.ai_addrlen);
+ conv_lisp_to_sockaddr (family, address, ai.ai_addr, ai.ai_addrlen);
+ goto open_socket;
+ }
+
+ /* :family FAMILY -- nil (for Inet), local, or integer. */
+ tem = Fplist_get (contact, QCfamily);
+ if (INTEGERP (tem))
+ family = XINT (tem);
+ else
+ {
+ if (NILP (tem))
+ family = AF_INET;
+#ifdef HAVE_LOCAL_SOCKETS
+ else if (EQ (tem, Qlocal))
+ family = AF_LOCAL;
+#endif
+ }
+ if (family < 0)
+ error ("Unknown address family");
+ ai.ai_family = family;
+
+ /* :service SERVICE -- string, integer (port number), or t (random port). */
+ service = Fplist_get (contact, QCservice);
+
+#ifdef HAVE_LOCAL_SOCKETS
+ if (family == AF_LOCAL)
+ {
+ /* Host is not used. */
+ host = Qnil;
+ CHECK_STRING (service);
+ bzero (&address_un, sizeof address_un);
+ address_un.sun_family = AF_LOCAL;
+ strncpy (address_un.sun_path, SDATA (service), sizeof address_un.sun_path);
+ ai.ai_addr = (struct sockaddr *) &address_un;
+ ai.ai_addrlen = sizeof address_un;
+ goto open_socket;
+ }
+#endif
+
+ /* :host HOST -- hostname, ip address, or 'local for localhost. */
+ host = Fplist_get (contact, QChost);
+ if (!NILP (host))
+ {
+ if (EQ (host, Qlocal))
+ host = build_string ("localhost");
+ CHECK_STRING (host);
+ }
/* Slow down polling to every ten seconds.
Some kernels have a bug which causes retrying connect to fail
after a connect. Polling can interfere with gethostbyname too. */
#ifdef POLL_FOR_INPUT
- record_unwind_protect (unwind_stop_other_atimers, Qnil);
- bind_polling_period (10);
+ if (socktype == SOCK_STREAM)
+ {
+ record_unwind_protect (unwind_stop_other_atimers, Qnil);
+ bind_polling_period (10);
+ }
#endif
-#ifndef TERM
#ifdef HAVE_GETADDRINFO
- immediate_quit = 1;
- QUIT;
- memset (&hints, 0, sizeof (hints));
- hints.ai_flags = 0;
- hints.ai_family = AF_UNSPEC;
- hints.ai_socktype = SOCK_STREAM;
- hints.ai_protocol = 0;
- ret = getaddrinfo (XSTRING (host)->data, portstring, &hints, &res);
- if (ret)
+ /* If we have a host, use getaddrinfo to resolve both host and service.
+ Otherwise, use getservbyname to lookup the service. */
+ if (!NILP (host))
+ {
+
+ /* SERVICE can either be a string or int.
+ Convert to a C string for later use by getaddrinfo. */
+ if (EQ (service, Qt))
+ portstring = "0";
+ else if (INTEGERP (service))
+ {
+ sprintf (portbuf, "%ld", (long) XINT (service));
+ portstring = portbuf;
+ }
+ else
+ {
+ CHECK_STRING (service);
+ portstring = SDATA (service);
+ }
+
+ immediate_quit = 1;
+ QUIT;
+ memset (&hints, 0, sizeof (hints));
+ hints.ai_flags = 0;
+ hints.ai_family = NILP (Fplist_member (contact, QCfamily)) ? AF_UNSPEC : family;
+ hints.ai_socktype = socktype;
+ hints.ai_protocol = 0;
+ ret = getaddrinfo (SDATA (host), portstring, &hints, &res);
+ if (ret)
#ifdef HAVE_GAI_STRERROR
- error ("%s/%s %s", XSTRING (host)->data, portstring, gai_strerror(ret));
+ error ("%s/%s %s", SDATA (host), portstring, gai_strerror(ret));
#else
- error ("%s/%s getaddrinfo error %d", XSTRING (host)->data, portstring,
- ret);
+ error ("%s/%s getaddrinfo error %d", SDATA (host), portstring, ret);
#endif
- immediate_quit = 0;
+ immediate_quit = 0;
+
+ goto open_socket;
+ }
+#endif /* HAVE_GETADDRINFO */
+
+ /* We end up here if getaddrinfo is not defined, or in case no hostname
+ has been specified (e.g. for a local server process). */
+
+ if (EQ (service, Qt))
+ port = 0;
+ else if (INTEGERP (service))
+ port = htons ((unsigned short) XINT (service));
+ else
+ {
+ struct servent *svc_info;
+ CHECK_STRING (service);
+ svc_info = getservbyname (SDATA (service),
+ (socktype == SOCK_DGRAM ? "udp" : "tcp"));
+ if (svc_info == 0)
+ error ("Unknown service: %s", SDATA (service));
+ port = svc_info->s_port;
+ }
+
+ bzero (&address_in, sizeof address_in);
+ address_in.sin_family = family;
+ address_in.sin_addr.s_addr = INADDR_ANY;
+ address_in.sin_port = port;
+
+#ifndef HAVE_GETADDRINFO
+ if (!NILP (host))
+ {
+ struct hostent *host_info_ptr;
+
+ /* gethostbyname may fail with TRY_AGAIN, but we don't honour that,
+ as it may `hang' emacs for a very long time. */
+ immediate_quit = 1;
+ QUIT;
+ host_info_ptr = gethostbyname (SDATA (host));
+ immediate_quit = 0;
+
+ if (host_info_ptr)
+ {
+ bcopy (host_info_ptr->h_addr, (char *) &address_in.sin_addr,
+ host_info_ptr->h_length);
+ family = host_info_ptr->h_addrtype;
+ address_in.sin_family = family;
+ }
+ else
+ /* Attempt to interpret host as numeric inet address */
+ {
+ IN_ADDR numeric_addr;
+ numeric_addr = inet_addr ((char *) SDATA (host));
+ if (NUMERIC_ADDR_ERROR)
+ error ("Unknown host \"%s\"", SDATA (host));
+
+ bcopy ((char *)&numeric_addr, (char *) &address_in.sin_addr,
+ sizeof (address_in.sin_addr));
+ }
+
+ }
+#endif /* not HAVE_GETADDRINFO */
+
+ ai.ai_family = family;
+ ai.ai_addr = (struct sockaddr *) &address_in;
+ ai.ai_addrlen = sizeof address_in;
+
+ open_socket:
+
+ /* Kernel bugs (on Ultrix at least) cause lossage (not just EINTR)
+ when connect is interrupted. So let's not let it get interrupted.
+ Note we do not turn off polling, because polling is only used
+ when not interrupt_input, and thus not normally used on the systems
+ which have this bug. On systems which use polling, there's no way
+ to quit if polling is turned off. */
+ if (interrupt_input
+ && !is_server && socktype == SOCK_STREAM)
+ {
+ /* Comment from KFS: The original open-network-stream code
+ didn't unwind protect this, but it seems like the proper
+ thing to do. In any case, I don't see how it could harm to
+ do this -- and it makes cleanup (using unbind_to) easier. */
+ record_unwind_protect (unwind_request_sigio, Qnil);
+ unrequest_sigio ();
+ }
/* Do this in case we never enter the for-loop below. */
- count1 = specpdl_ptr - specpdl;
+ count1 = SPECPDL_INDEX ();
s = -1;
for (lres = res; lres; lres = lres->ai_next)
continue;
}
- /* Kernel bugs (on Ultrix at least) cause lossage (not just EINTR)
- when connect is interrupted. So let's not let it get interrupted.
- Note we do not turn off polling, because polling is only used
- when not interrupt_input, and thus not normally used on the systems
- which have this bug. On systems which use polling, there's no way
- to quit if polling is turned off. */
- if (interrupt_input)
- unrequest_sigio ();
+#ifdef DATAGRAM_SOCKETS
+ if (!is_server && socktype == SOCK_DGRAM)
+ break;
+#endif /* DATAGRAM_SOCKETS */
+#ifdef NON_BLOCKING_CONNECT
+ if (is_non_blocking_client)
+ {
+#ifdef O_NONBLOCK
+ ret = fcntl (s, F_SETFL, O_NONBLOCK);
+#else
+ ret = fcntl (s, F_SETFL, O_NDELAY);
+#endif
+ if (ret < 0)
+ {
+ xerrno = errno;
+ emacs_close (s);
+ s = -1;
+ continue;
+ }
+ }
+#endif
+
/* Make us close S if quit. */
- count1 = specpdl_ptr - specpdl;
record_unwind_protect (close_file_unwind, make_number (s));
- loop:
+ if (is_server)
+ {
+ /* Configure as a server socket. */
+#ifdef HAVE_LOCAL_SOCKETS
+ if (family != AF_LOCAL)
+#endif
+ {
+ int optval = 1;
+ if (setsockopt (s, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof optval))
+ report_file_error ("Cannot set reuse option on server socket.", Qnil);
+ }
+
+ if (bind (s, lres->ai_addr, lres->ai_addrlen))
+ report_file_error ("Cannot bind server socket", Qnil);
+
+#ifdef HAVE_GETSOCKNAME
+ if (EQ (service, Qt))
+ {
+ struct sockaddr_in sa1;
+ int len1 = sizeof (sa1);
+ if (getsockname (s, (struct sockaddr *)&sa1, &len1) == 0)
+ {
+ ((struct sockaddr_in *)(lres->ai_addr))->sin_port = sa1.sin_port;
+ service = make_number (sa1.sin_port);
+ contact = Fplist_put (contact, QCservice, service);
+ }
+ }
+#endif
+
+ if (socktype == SOCK_STREAM && listen (s, 5))
+ report_file_error ("Cannot listen on server socket", Qnil);
+
+ break;
+ }
+
+ retry_connect:
immediate_quit = 1;
QUIT;
set.
It'd be nice to be able to control the connect timeout
- though. Would non-blocking connect calls be portable? */
+ though. Would non-blocking connect calls be portable?
+
+ This used to be conditioned by HAVE_GETADDRINFO. Why? */
+
turn_on_atimers (0);
+
ret = connect (s, lres->ai_addr, lres->ai_addrlen);
xerrno = errno;
+
turn_on_atimers (1);
if (ret == 0 || xerrno == EISCONN)
- /* The unwind-protect will be discarded afterwards.
- Likewise for immediate_quit. */
+ {
+ /* The unwind-protect will be discarded afterwards.
+ Likewise for immediate_quit. */
+ break;
+ }
+
+#ifdef NON_BLOCKING_CONNECT
+#ifdef EINPROGRESS
+ if (is_non_blocking_client && xerrno == EINPROGRESS)
+ break;
+#else
+#ifdef EWOULDBLOCK
+ if (is_non_blocking_client && xerrno == EWOULDBLOCK)
break;
+#endif
+#endif
+#endif
immediate_quit = 0;
if (xerrno == EINTR)
- goto loop;
+ goto retry_connect;
if (xerrno == EADDRINUSE && retry < 20)
{
/* A delay here is needed on some FreeBSD systems,
and should be infrequent. */
Fsleep_for (make_number (1), Qnil);
retry++;
- goto loop;
+ goto retry_connect;
}
/* Discard the unwind protect closing S. */
specpdl_ptr = specpdl + count1;
- count1 = specpdl_ptr - specpdl;
-
emacs_close (s);
s = -1;
}
- freeaddrinfo (res);
- if (s < 0)
- {
- if (interrupt_input)
- request_sigio ();
-
- errno = xerrno;
- report_file_error ("connection failed",
- Fcons (host, Fcons (name, Qnil)));
- }
-
-#else /* not HAVE_GETADDRINFO */
-
- while (1)
- {
-#if 0
-#ifdef TRY_AGAIN
- h_errno = 0;
-#endif
-#endif
- immediate_quit = 1;
- QUIT;
- host_info_ptr = gethostbyname (XSTRING (host)->data);
- immediate_quit = 0;
-#if 0
-#ifdef TRY_AGAIN
- if (! (host_info_ptr == 0 && h_errno == TRY_AGAIN))
-#endif
-#endif
- break;
- Fsleep_for (make_number (1), Qnil);
- }
-
- if (host_info_ptr == 0)
- /* Attempt to interpret host as numeric inet address */
- {
- numeric_addr = inet_addr ((char *) XSTRING (host)->data);
- if (NUMERIC_ADDR_ERROR)
- error ("Unknown host \"%s\"", XSTRING (host)->data);
-
- host_info_ptr = &host_info;
- host_info.h_name = 0;
- host_info.h_aliases = 0;
- host_info.h_addrtype = AF_INET;
-#ifdef h_addr
- /* Older machines have only one address slot called h_addr.
- Newer machines have h_addr_list, but #define h_addr to
- be its first element. */
- host_info.h_addr_list = &(addr_list[0]);
-#endif
- host_info.h_addr = (char*)(&numeric_addr);
- addr_list[1] = 0;
- /* numeric_addr isn't null-terminated; it has fixed length. */
- host_info.h_length = sizeof (numeric_addr);
- }
-
- bzero (&address, sizeof address);
- bcopy (host_info_ptr->h_addr, (char *) &address.sin_addr,
- host_info_ptr->h_length);
- address.sin_family = host_info_ptr->h_addrtype;
- address.sin_port = port;
-
- s = socket (host_info_ptr->h_addrtype, SOCK_STREAM, 0);
- if (s < 0)
- report_file_error ("error creating socket", Fcons (name, Qnil));
-
- count1 = specpdl_ptr - specpdl;
- record_unwind_protect (close_file_unwind, make_number (s));
-
- /* Kernel bugs (on Ultrix at least) cause lossage (not just EINTR)
- when connect is interrupted. So let's not let it get interrupted.
- Note we do not turn off polling, because polling is only used
- when not interrupt_input, and thus not normally used on the systems
- which have this bug. On systems which use polling, there's no way
- to quit if polling is turned off. */
- if (interrupt_input)
- unrequest_sigio ();
-
- loop:
-
- immediate_quit = 1;
- QUIT;
-
- if (connect (s, (struct sockaddr *) &address, sizeof address) == -1
- && errno != EISCONN)
+ if (s >= 0)
{
- int xerrno = errno;
-
- immediate_quit = 0;
-
- if (errno == EINTR)
- goto loop;
- if (errno == EADDRINUSE && retry < 20)
+#ifdef DATAGRAM_SOCKETS
+ if (socktype == SOCK_DGRAM)
{
- /* A delay here is needed on some FreeBSD systems,
- and it is harmless, since this retrying takes time anyway
- and should be infrequent. */
- Fsleep_for (make_number (1), Qnil);
- retry++;
- goto loop;
+ if (datagram_address[s].sa)
+ abort ();
+ datagram_address[s].sa = (struct sockaddr *) xmalloc (lres->ai_addrlen);
+ datagram_address[s].len = lres->ai_addrlen;
+ if (is_server)
+ {
+ Lisp_Object remote;
+ bzero (datagram_address[s].sa, lres->ai_addrlen);
+ if (remote = Fplist_get (contact, QCremote), !NILP (remote))
+ {
+ int rfamily, rlen;
+ rlen = get_lisp_to_sockaddr_size (remote, &rfamily);
+ if (rfamily == lres->ai_family && rlen == lres->ai_addrlen)
+ conv_lisp_to_sockaddr (rfamily, remote,
+ datagram_address[s].sa, rlen);
+ }
+ }
+ else
+ bcopy (lres->ai_addr, datagram_address[s].sa, lres->ai_addrlen);
}
-
- /* Discard the unwind protect. */
- specpdl_ptr = specpdl + count1;
-
- emacs_close (s);
-
- if (interrupt_input)
- request_sigio ();
-
- errno = xerrno;
- report_file_error ("connection failed",
- Fcons (host, Fcons (name, Qnil)));
+#endif
+ contact = Fplist_put (contact, QCaddress,
+ conv_sockaddr_to_lisp (lres->ai_addr, lres->ai_addrlen));
}
-
-#endif /* not HAVE_GETADDRINFO */
- immediate_quit = 0;
+#ifdef HAVE_GETADDRINFO
+ if (res != &ai)
+ freeaddrinfo (res);
+#endif
- /* Discard the unwind protect, if any. */
- specpdl_ptr = specpdl + count1;
+ immediate_quit = 0;
-#ifdef POLL_FOR_INPUT
- unbind_to (count, Qnil);
-#endif
+ /* Discard the unwind protect for closing S, if any. */
+ specpdl_ptr = specpdl + count1;
- if (interrupt_input)
- request_sigio ();
+ /* Unwind bind_polling_period and request_sigio. */
+ unbind_to (count, Qnil);
-#else /* TERM */
- s = connect_server (0);
if (s < 0)
- report_file_error ("error creating socket", Fcons (name, Qnil));
- send_command (s, C_PORT, 0, "%s:%d", XSTRING (host)->data, ntohs (port));
- send_command (s, C_DUMB, 1, 0);
-#endif /* TERM */
+ {
+ /* If non-blocking got this far - and failed - assume non-blocking is
+ not supported after all. This is probably a wrong assumption, but
+ the normal blocking calls to open-network-stream handles this error
+ better. */
+ if (is_non_blocking_client)
+ return Qnil;
+
+ errno = xerrno;
+ if (is_server)
+ report_file_error ("make server process failed", contact);
+ else
+ report_file_error ("make client process failed", contact);
+ }
+
+ tem = Fplist_get (contact, QCoptions);
+ if (!NILP (tem))
+ set_socket_options (s, tem, 1);
+
+#endif /* not TERM */
inch = s;
outch = s;
#endif
#endif
- XPROCESS (proc)->childp = Fcons (host, Fcons (service, Qnil));
- XPROCESS (proc)->command_channel_p = Qnil;
- XPROCESS (proc)->buffer = buffer;
- XPROCESS (proc)->sentinel = Qnil;
- XPROCESS (proc)->filter = Qnil;
- XPROCESS (proc)->command = Qnil;
- XPROCESS (proc)->pid = Qnil;
- XSETINT (XPROCESS (proc)->infd, inch);
- XSETINT (XPROCESS (proc)->outfd, outch);
- XPROCESS (proc)->status = Qrun;
- FD_SET (inch, &input_wait_mask);
- FD_SET (inch, &non_keyboard_wait_mask);
+ p = XPROCESS (proc);
+
+ p->childp = contact;
+ p->buffer = buffer;
+ p->sentinel = sentinel;
+ p->filter = filter;
+ p->log = Fplist_get (contact, QClog);
+ if (tem = Fplist_get (contact, QCnoquery), !NILP (tem))
+ p->kill_without_query = Qt;
+ if ((tem = Fplist_get (contact, QCstop), !NILP (tem)))
+ p->command = Qt;
+ p->pid = Qnil;
+ XSETINT (p->infd, inch);
+ XSETINT (p->outfd, outch);
+ if (is_server && socktype == SOCK_STREAM)
+ p->status = Qlisten;
+
+#ifdef NON_BLOCKING_CONNECT
+ if (is_non_blocking_client)
+ {
+ /* We may get here if connect did succeed immediately. However,
+ in that case, we still need to signal this like a non-blocking
+ connection. */
+ p->status = Qconnect;
+ if (!FD_ISSET (inch, &connect_wait_mask))
+ {
+ FD_SET (inch, &connect_wait_mask);
+ num_pending_connects++;
+ }
+ }
+ else
+#endif
+ /* A server may have a client filter setting of Qt, but it must
+ still listen for incoming connects unless it is stopped. */
+ if ((!EQ (p->filter, Qt) && !EQ (p->command, Qt))
+ || (EQ (p->status, Qlisten) && NILP (p->command)))
+ {
+ FD_SET (inch, &input_wait_mask);
+ FD_SET (inch, &non_keyboard_wait_mask);
+ }
+
if (inch > max_process_desc)
max_process_desc = inch;
+ tem = Fplist_member (contact, QCcoding);
+ if (!NILP (tem) && (!CONSP (tem) || !CONSP (XCDR (tem))))
+ tem = Qnil; /* No error message (too late!). */
+
{
/* Setup coding systems for communicating with the network stream. */
struct gcpro gcpro1;
Lisp_Object coding_systems = Qt;
Lisp_Object args[5], val;
- if (!NILP (Vcoding_system_for_read))
+ if (!NILP (tem))
+ val = XCAR (XCDR (tem));
+ else if (!NILP (Vcoding_system_for_read))
val = Vcoding_system_for_read;
else if ((!NILP (buffer) && NILP (XBUFFER (buffer)->enable_multibyte_characters))
|| (NILP (buffer) && NILP (buffer_defaults.enable_multibyte_characters)))
val = Qnil;
else
{
- args[0] = Qopen_network_stream, args[1] = name,
- args[2] = buffer, args[3] = host, args[4] = service;
- GCPRO1 (proc);
- coding_systems = Ffind_operation_coding_system (5, args);
- UNGCPRO;
+ if (NILP (host) || NILP (service))
+ coding_systems = Qnil;
+ else
+ {
+ args[0] = Qopen_network_stream, args[1] = name,
+ args[2] = buffer, args[3] = host, args[4] = service;
+ GCPRO1 (proc);
+ coding_systems = Ffind_operation_coding_system (5, args);
+ UNGCPRO;
+ }
if (CONSP (coding_systems))
val = XCAR (coding_systems);
else if (CONSP (Vdefault_process_coding_system))
else
val = Qnil;
}
- XPROCESS (proc)->decode_coding_system = val;
+ p->decode_coding_system = val;
- if (!NILP (Vcoding_system_for_write))
+ if (!NILP (tem))
+ val = XCAR (XCDR (tem));
+ else if (!NILP (Vcoding_system_for_write))
val = Vcoding_system_for_write;
else if (NILP (current_buffer->enable_multibyte_characters))
val = Qnil;
{
if (EQ (coding_systems, Qt))
{
- args[0] = Qopen_network_stream, args[1] = name,
- args[2] = buffer, args[3] = host, args[4] = service;
- GCPRO1 (proc);
- coding_systems = Ffind_operation_coding_system (5, args);
- UNGCPRO;
+ if (NILP (host) || NILP (service))
+ coding_systems = Qnil;
+ else
+ {
+ args[0] = Qopen_network_stream, args[1] = name,
+ args[2] = buffer, args[3] = host, args[4] = service;
+ GCPRO1 (proc);
+ coding_systems = Ffind_operation_coding_system (5, args);
+ UNGCPRO;
+ }
}
if (CONSP (coding_systems))
val = XCDR (coding_systems);
else
val = Qnil;
}
- XPROCESS (proc)->encode_coding_system = val;
+ p->encode_coding_system = val;
}
if (!proc_decode_coding_system[inch])
proc_decode_coding_system[inch]
= (struct coding_system *) xmalloc (sizeof (struct coding_system));
- setup_coding_system (XPROCESS (proc)->decode_coding_system,
+ setup_coding_system (p->decode_coding_system,
proc_decode_coding_system[inch]);
if (!proc_encode_coding_system[outch])
proc_encode_coding_system[outch]
= (struct coding_system *) xmalloc (sizeof (struct coding_system));
- setup_coding_system (XPROCESS (proc)->encode_coding_system,
+ setup_coding_system (p->encode_coding_system,
proc_encode_coding_system[outch]);
- XPROCESS (proc)->decoding_buf = make_uninit_string (0);
- XPROCESS (proc)->decoding_carryover = make_number (0);
- XPROCESS (proc)->encoding_buf = make_uninit_string (0);
- XPROCESS (proc)->encoding_carryover = make_number (0);
+ p->decoding_buf = make_uninit_string (0);
+ p->decoding_carryover = make_number (0);
+ p->encoding_buf = make_uninit_string (0);
+ p->encoding_carryover = make_number (0);
- XPROCESS (proc)->inherit_coding_system_flag
- = (NILP (buffer) || !inherit_process_coding_system
+ p->inherit_coding_system_flag
+ = (!NILP (tem) || NILP (buffer) || !inherit_process_coding_system
? Qnil : Qt);
UNGCPRO;
XSETINT (p->infd, -1);
XSETINT (p->outfd, -1);
+#ifdef DATAGRAM_SOCKETS
+ if (DATAGRAM_CHAN_P (inchannel))
+ {
+ xfree (datagram_address[inchannel].sa);
+ datagram_address[inchannel].sa = 0;
+ datagram_address[inchannel].len = 0;
+ }
+#endif
chan_process[inchannel] = Qnil;
FD_CLR (inchannel, &input_wait_mask);
FD_CLR (inchannel, &non_keyboard_wait_mask);
+ if (FD_ISSET (inchannel, &connect_wait_mask))
+ {
+ FD_CLR (inchannel, &connect_wait_mask);
+ if (--num_pending_connects < 0)
+ abort ();
+ }
if (inchannel == max_process_desc)
{
int i;
}
\f
DEFUN ("accept-process-output", Faccept_process_output, Saccept_process_output,
- 0, 3, 0,
- "Allow any pending output from subprocesses to be read by Emacs.\n\
-It is read into the process' buffers or given to their filter functions.\n\
-Non-nil arg PROCESS means do not return until some output has been received\n\
-from PROCESS.\n\
-Non-nil second arg TIMEOUT and third arg TIMEOUT-MSECS are number of\n\
-seconds and microseconds to wait; return after that much time whether\n\
-or not there is input.\n\
-Return non-nil iff we received any output before the timeout expired.")
- (process, timeout, timeout_msecs)
+ 0, 3, 0,
+ doc: /* Allow any pending output from subprocesses to be read by Emacs.
+It is read into the process' buffers or given to their filter functions.
+Non-nil arg PROCESS means do not return until some output has been received
+from PROCESS.
+Non-nil second arg TIMEOUT and third arg TIMEOUT-MSECS are number of
+seconds and microseconds to wait; return after that much time whether
+or not there is input.
+Return non-nil iff we received any output before the timeout expired. */)
+ (process, timeout, timeout_msecs)
register Lisp_Object process, timeout, timeout_msecs;
{
int seconds;
int useconds;
if (! NILP (process))
- CHECK_PROCESS (process, 0);
+ CHECK_PROCESS (process);
if (! NILP (timeout_msecs))
{
- CHECK_NUMBER (timeout_msecs, 2);
+ CHECK_NUMBER (timeout_msecs);
useconds = XINT (timeout_msecs);
if (!INTEGERP (timeout))
XSETINT (timeout, 0);
if (! NILP (timeout))
{
- CHECK_NUMBER (timeout, 1);
+ CHECK_NUMBER (timeout);
seconds = XINT (timeout);
if (seconds < 0 || (seconds == 0 && useconds == 0))
seconds = -1;
? Qt : Qnil);
}
+/* Accept a connection for server process SERVER on CHANNEL. */
+
+static int connect_counter = 0;
+
+static void
+server_accept_connection (server, channel)
+ Lisp_Object server;
+ int channel;
+{
+ Lisp_Object proc, caller, name, buffer;
+ Lisp_Object contact, host, service;
+ struct Lisp_Process *ps= XPROCESS (server);
+ struct Lisp_Process *p;
+ int s;
+ union u_sockaddr {
+ struct sockaddr sa;
+ struct sockaddr_in in;
+#ifdef HAVE_LOCAL_SOCKETS
+ struct sockaddr_un un;
+#endif
+ } saddr;
+ int len = sizeof saddr;
+
+ s = accept (channel, &saddr.sa, &len);
+
+ if (s < 0)
+ {
+ int code = errno;
+
+ if (code == EAGAIN)
+ return;
+#ifdef EWOULDBLOCK
+ if (code == EWOULDBLOCK)
+ return;
+#endif
+
+ if (!NILP (ps->log))
+ call3 (ps->log, server, Qnil,
+ concat3 (build_string ("accept failed with code"),
+ Fnumber_to_string (make_number (code)),
+ build_string ("\n")));
+ return;
+ }
+
+ connect_counter++;
+
+ /* Setup a new process to handle the connection. */
+
+ /* Generate a unique identification of the caller, and build contact
+ information for this process. */
+ host = Qt;
+ service = Qnil;
+ switch (saddr.sa.sa_family)
+ {
+ case AF_INET:
+ {
+ Lisp_Object args[5];
+ unsigned char *ip = (unsigned char *)&saddr.in.sin_addr.s_addr;
+ args[0] = build_string ("%d.%d.%d.%d");
+ args[1] = make_number (*ip++);
+ args[2] = make_number (*ip++);
+ args[3] = make_number (*ip++);
+ args[4] = make_number (*ip++);
+ host = Fformat (5, args);
+ service = make_number (ntohs (saddr.in.sin_port));
+
+ args[0] = build_string (" <%s:%d>");
+ args[1] = host;
+ args[2] = service;
+ caller = Fformat (3, args);
+ }
+ break;
+
+#ifdef HAVE_LOCAL_SOCKETS
+ case AF_LOCAL:
+#endif
+ default:
+ caller = Fnumber_to_string (make_number (connect_counter));
+ caller = concat3 (build_string (" <*"), caller, build_string ("*>"));
+ break;
+ }
+
+ /* Create a new buffer name for this process if it doesn't have a
+ filter. The new buffer name is based on the buffer name or
+ process name of the server process concatenated with the caller
+ identification. */
+
+ if (!NILP (ps->filter) && !EQ (ps->filter, Qt))
+ buffer = Qnil;
+ else
+ {
+ buffer = ps->buffer;
+ if (!NILP (buffer))
+ buffer = Fbuffer_name (buffer);
+ else
+ buffer = ps->name;
+ if (!NILP (buffer))
+ {
+ buffer = concat2 (buffer, caller);
+ buffer = Fget_buffer_create (buffer);
+ }
+ }
+
+ /* Generate a unique name for the new server process. Combine the
+ server process name with the caller identification. */
+
+ name = concat2 (ps->name, caller);
+ proc = make_process (name);
+
+ chan_process[s] = proc;
+
+#ifdef O_NONBLOCK
+ fcntl (s, F_SETFL, O_NONBLOCK);
+#else
+#ifdef O_NDELAY
+ fcntl (s, F_SETFL, O_NDELAY);
+#endif
+#endif
+
+ p = XPROCESS (proc);
+
+ /* Build new contact information for this setup. */
+ contact = Fcopy_sequence (ps->childp);
+ contact = Fplist_put (contact, QCserver, Qnil);
+ contact = Fplist_put (contact, QChost, host);
+ if (!NILP (service))
+ contact = Fplist_put (contact, QCservice, service);
+ contact = Fplist_put (contact, QCremote,
+ conv_sockaddr_to_lisp (&saddr.sa, len));
+#ifdef HAVE_GETSOCKNAME
+ len = sizeof saddr;
+ if (getsockname (channel, &saddr.sa, &len) == 0)
+ contact = Fplist_put (contact, QClocal,
+ conv_sockaddr_to_lisp (&saddr.sa, len));
+#endif
+
+ p->childp = contact;
+ p->buffer = buffer;
+ p->sentinel = ps->sentinel;
+ p->filter = ps->filter;
+ p->command = Qnil;
+ p->pid = Qnil;
+ XSETINT (p->infd, s);
+ XSETINT (p->outfd, s);
+ p->status = Qrun;
+
+ /* Client processes for accepted connections are not stopped initially. */
+ if (!EQ (p->filter, Qt))
+ {
+ FD_SET (s, &input_wait_mask);
+ FD_SET (s, &non_keyboard_wait_mask);
+ }
+
+ if (s > max_process_desc)
+ max_process_desc = s;
+
+ /* Setup coding system for new process based on server process.
+ This seems to be the proper thing to do, as the coding system
+ of the new process should reflect the settings at the time the
+ server socket was opened; not the current settings. */
+
+ p->decode_coding_system = ps->decode_coding_system;
+ p->encode_coding_system = ps->encode_coding_system;
+
+ if (!proc_decode_coding_system[s])
+ proc_decode_coding_system[s]
+ = (struct coding_system *) xmalloc (sizeof (struct coding_system));
+ setup_coding_system (p->decode_coding_system,
+ proc_decode_coding_system[s]);
+ if (!proc_encode_coding_system[s])
+ proc_encode_coding_system[s]
+ = (struct coding_system *) xmalloc (sizeof (struct coding_system));
+ setup_coding_system (p->encode_coding_system,
+ proc_encode_coding_system[s]);
+
+ p->decoding_buf = make_uninit_string (0);
+ p->decoding_carryover = make_number (0);
+ p->encoding_buf = make_uninit_string (0);
+ p->encoding_carryover = make_number (0);
+
+ p->inherit_coding_system_flag
+ = (NILP (buffer) ? Qnil : ps->inherit_coding_system_flag);
+
+ if (!NILP (ps->log))
+ call3 (ps->log, server, proc,
+ concat3 (build_string ("accept from "),
+ (STRINGP (host) ? host : build_string ("-")),
+ build_string ("\n")));
+
+ if (!NILP (p->sentinel))
+ exec_sentinel (proc,
+ concat3 (build_string ("open from "),
+ (STRINGP (host) ? host : build_string ("-")),
+ build_string ("\n")));
+}
+
/* This variable is different from waiting_for_input in keyboard.c.
It is used to communicate to a lisp process-filter/sentinel (via the
function Fwaiting_for_user_input_p below) whether emacs was waiting
{
register int channel, nfds;
static SELECT_TYPE Available;
+ static SELECT_TYPE Connecting;
+ int check_connect, no_avail;
int xerrno;
Lisp_Object proc;
EMACS_TIME timeout, end_time;
- SELECT_TYPE Atemp;
int wait_channel = -1;
struct Lisp_Process *wait_proc = 0;
int got_some_input = 0;
- Lisp_Object *wait_for_cell = 0;
+ /* Either nil or a cons cell, the car of which is of interest and
+ may be changed outside of this routine. */
+ Lisp_Object wait_for_cell = Qnil;
FD_ZERO (&Available);
+ FD_ZERO (&Connecting);
/* If read_kbd is a process to watch, set wait_proc and wait_channel
accordingly. */
/* If waiting for non-nil in a cell, record where. */
if (CONSP (read_kbd))
{
- wait_for_cell = &XCAR (read_kbd);
+ wait_for_cell = read_kbd;
XSETFASTINT (read_kbd, 0);
}
HP-UX 10.10 seem to have problems with signals coming in
Causes "poll: interrupted system call" messages when Emacs is run
in an X window
- Turn off periodic alarms (in case they are in use) */
+ Turn off periodic alarms (in case they are in use),
+ and then turn off any other atimers. */
+ stop_polling ();
turn_on_atimers (0);
#endif
QUIT;
/* Exit now if the cell we're waiting for became non-nil. */
- if (wait_for_cell && ! NILP (*wait_for_cell))
+ if (! NILP (wait_for_cell) && ! NILP (XCAR (wait_for_cell)))
break;
/* Compute time from now till when time limit is up */
But not if wait_for_cell; in those cases,
the wait is supposed to be short,
and those callers cannot handle running arbitrary Lisp code here. */
- if (! wait_for_cell)
+ if (NILP (wait_for_cell))
{
EMACS_TIME timer_delay;
timeout to get our attention. */
if (update_tick != process_tick && do_display)
{
+ SELECT_TYPE Atemp, Ctemp;
+
Atemp = input_wait_mask;
+#ifdef MAC_OSX
+ /* On Mac OS X, the SELECT system call always says input is
+ present (for reading) at stdin, even when none is. This
+ causes the call to SELECT below to return 1 and
+ status_notify not to be called. As a result output of
+ subprocesses are incorrectly discarded. */
+ FD_CLR (0, &Atemp);
+#endif
+ Ctemp = connect_wait_mask;
EMACS_SET_SECS_USECS (timeout, 0, 0);
if ((select (max (max_process_desc, max_keyboard_desc) + 1,
- &Atemp, (SELECT_TYPE *)0, (SELECT_TYPE *)0,
- &timeout)
+ &Atemp,
+ (num_pending_connects > 0 ? &Ctemp : (SELECT_TYPE *)0),
+ (SELECT_TYPE *)0, &timeout)
<= 0))
{
/* It's okay for us to do this and then continue with
}
}
- /* Don't wait for output from a non-running process. */
+ /* Don't wait for output from a non-running process. Just
+ read whatever data has already been received. */
if (wait_proc != 0 && !NILP (wait_proc->raw_status_low))
update_status (wait_proc);
if (wait_proc != 0
- && ! EQ (wait_proc->status, Qrun))
+ && ! EQ (wait_proc->status, Qrun)
+ && ! EQ (wait_proc->status, Qconnect))
{
int nread, total_nread = 0;
/* Wait till there is something to do */
- if (wait_for_cell)
- Available = non_process_wait_mask;
- else if (! XINT (read_kbd))
- Available = non_keyboard_wait_mask;
+ if (!NILP (wait_for_cell))
+ {
+ Available = non_process_wait_mask;
+ check_connect = 0;
+ }
else
- Available = input_wait_mask;
+ {
+ if (! XINT (read_kbd))
+ Available = non_keyboard_wait_mask;
+ else
+ Available = input_wait_mask;
+ check_connect = (num_pending_connects > 0);
+ }
/* If frame size has changed or the window is newly mapped,
redisplay now, before we start to wait. There is a race
set_waiting_for_input (&timeout);
}
+ no_avail = 0;
if (XINT (read_kbd) && detect_input_pending ())
{
nfds = 0;
- FD_ZERO (&Available);
+ no_avail = 1;
}
else
- nfds = select (max (max_process_desc, max_keyboard_desc) + 1,
- &Available, (SELECT_TYPE *)0, (SELECT_TYPE *)0,
- &timeout);
+ {
+ if (check_connect)
+ Connecting = connect_wait_mask;
+ nfds = select (max (max_process_desc, max_keyboard_desc) + 1,
+ &Available,
+ (check_connect ? &Connecting : (SELECT_TYPE *)0),
+ (SELECT_TYPE *)0, &timeout);
+ }
xerrno = errno;
if (nfds < 0)
{
if (xerrno == EINTR)
- FD_ZERO (&Available);
+ no_avail = 1;
#ifdef ultrix
/* Ultrix select seems to return ENOMEM when it is
interrupted. Treat it just like EINTR. Bleah. Note
"__ultrix__"; the latter is only defined under GCC, but
not by DEC's bundled CC. -JimB */
else if (xerrno == ENOMEM)
- FD_ZERO (&Available);
+ no_avail = 1;
#endif
#ifdef ALLIANT
/* This happens for no known reason on ALLIANT.
I am guessing that this is the right response. -- RMS. */
else if (xerrno == EFAULT)
- FD_ZERO (&Available);
+ no_avail = 1;
#endif
else if (xerrno == EBADF)
{
So, SIGHUP is ignored (see def of PTY_TTY_NAME_SPRINTF
in m/ibmrt-aix.h), and here we just ignore the select error.
Cleanup occurs c/o status_notify after SIGCLD. */
- FD_ZERO (&Available); /* Cannot depend on values returned */
+ no_avail = 1; /* Cannot depend on values returned */
#else
abort ();
#endif
else
error ("select error: %s", emacs_strerror (xerrno));
}
+
+ if (no_avail)
+ {
+ FD_ZERO (&Available);
+ check_connect = 0;
+ }
+
#if defined(sun) && !defined(USG5_4)
- else if (nfds > 0 && keyboard_bit_set (&Available)
- && interrupt_input)
+ if (nfds > 0 && keyboard_bit_set (&Available)
+ && interrupt_input)
/* System sometimes fails to deliver SIGIO.
David J. Mackenzie says that Emacs doesn't compile under
}
/* Exit now if the cell we're waiting for became non-nil. */
- if (wait_for_cell && ! NILP (*wait_for_cell))
+ if (! NILP (wait_for_cell) && ! NILP (XCAR (wait_for_cell)))
break;
#ifdef SIGIO
/* If checking input just got us a size-change event from X,
obey it now if we should. */
- if (XINT (read_kbd) || wait_for_cell)
+ if (XINT (read_kbd) || ! NILP (wait_for_cell))
do_pending_window_change (0);
/* Check for data from a process. */
+ if (no_avail || nfds == 0)
+ continue;
+
/* Really FIRST_PROC_DESC should be 0 on Unix,
but this is safer in the short run. */
for (channel = 0; channel <= max_process_desc; channel++)
if (NILP (proc))
continue;
+ /* If this is a server stream socket, accept connection. */
+ if (EQ (XPROCESS (proc)->status, Qlisten))
+ {
+ server_accept_connection (proc, channel);
+ continue;
+ }
+
/* Read data from the process, starting with our
buffered-ahead character if we have one. */
= Fcons (Qexit, Fcons (make_number (256), Qnil));
}
}
+#ifdef NON_BLOCKING_CONNECT
+ if (check_connect && FD_ISSET (channel, &Connecting))
+ {
+ struct Lisp_Process *p;
+
+ FD_CLR (channel, &connect_wait_mask);
+ if (--num_pending_connects < 0)
+ abort ();
+
+ proc = chan_process[channel];
+ if (NILP (proc))
+ continue;
+
+ p = XPROCESS (proc);
+
+#ifdef GNU_LINUX
+ /* getsockopt(,,SO_ERROR,,) is said to hang on some systems.
+ So only use it on systems where it is known to work. */
+ {
+ int xlen = sizeof(xerrno);
+ if (getsockopt(channel, SOL_SOCKET, SO_ERROR, &xerrno, &xlen))
+ xerrno = errno;
+ }
+#else
+ {
+ struct sockaddr pname;
+ int pnamelen = sizeof(pname);
+
+ /* If connection failed, getpeername will fail. */
+ xerrno = 0;
+ if (getpeername(channel, &pname, &pnamelen) < 0)
+ {
+ /* Obtain connect failure code through error slippage. */
+ char dummy;
+ xerrno = errno;
+ if (errno == ENOTCONN && read(channel, &dummy, 1) < 0)
+ xerrno = errno;
+ }
+ }
+#endif
+ if (xerrno)
+ {
+ XSETINT (p->tick, ++process_tick);
+ p->status = Fcons (Qfailed, Fcons (make_number (xerrno), Qnil));
+ deactivate_process (proc);
+ }
+ else
+ {
+ p->status = Qrun;
+ /* Execute the sentinel here. If we had relied on
+ status_notify to do it later, it will read input
+ from the process before calling the sentinel. */
+ exec_sentinel (proc, build_string ("open\n"));
+ if (!EQ (p->filter, Qt) && !EQ (p->command, Qt))
+ {
+ FD_SET (XINT (p->infd), &input_wait_mask);
+ FD_SET (XINT (p->infd), &non_keyboard_wait_mask);
+ }
+ }
+ }
+#endif /* NON_BLOCKING_CONNECT */
} /* end for each file descriptor */
} /* end while exit conditions not met */
register int opoint;
struct coding_system *coding = proc_decode_coding_system[channel];
int carryover = XINT (p->decoding_carryover);
+ int readmax = 1024;
#ifdef VMS
VMS_PROC_STUFF *vs, *get_vms_process_pointer();
the tail of decoding buffer) should be prepended to the new
data read to decode all together. */
chars = (char *) alloca (nbytes + carryover);
- bcopy (XSTRING (p->decoding_buf)->data, buf, carryover);
+ bcopy (SDATA (p->decoding_buf), buf, carryover);
bcopy (vs->inputBuffer, chars + carryover, nbytes);
}
#else /* not VMS */
- chars = (char *) alloca (carryover + 1024);
+
+#ifdef DATAGRAM_SOCKETS
+ /* A datagram is one packet; allow at least 1500+ bytes of data
+ corresponding to the typical Ethernet frame size. */
+ if (DATAGRAM_CHAN_P (channel))
+ {
+ /* carryover = 0; */ /* Does carryover make sense for datagrams? */
+ readmax += 1024;
+ }
+#endif
+
+ chars = (char *) alloca (carryover + readmax);
if (carryover)
/* See the comment above. */
- bcopy (XSTRING (p->decoding_buf)->data, chars, carryover);
+ bcopy (SDATA (p->decoding_buf), chars, carryover);
+#ifdef DATAGRAM_SOCKETS
+ /* We have a working select, so proc_buffered_char is always -1. */
+ if (DATAGRAM_CHAN_P (channel))
+ {
+ int len = datagram_address[channel].len;
+ nbytes = recvfrom (channel, chars + carryover, readmax - carryover,
+ 0, datagram_address[channel].sa, &len);
+ }
+ else
+#endif
if (proc_buffered_char[channel] < 0)
- nbytes = emacs_read (channel, chars + carryover, 1024 - carryover);
+ nbytes = emacs_read (channel, chars + carryover, readmax - carryover);
else
{
chars[carryover] = proc_buffered_char[channel];
proc_buffered_char[channel] = -1;
- nbytes = emacs_read (channel, chars + carryover + 1, 1023 - carryover);
+ nbytes = emacs_read (channel, chars + carryover + 1, readmax - 1 - carryover);
if (nbytes < 0)
nbytes = 1;
else
/* We inhibit quit here instead of just catching it so that
hitting ^G when a filter happens to be running won't screw
it up. */
- int count = specpdl_ptr - specpdl;
+ int count = SPECPDL_INDEX ();
Lisp_Object odeactivate;
Lisp_Object obuffer, okeymap;
Lisp_Object text;
}
carryover = nbytes - coding->consumed;
- bcopy (chars + coding->consumed, XSTRING (p->decoding_buf)->data,
+ bcopy (chars + coding->consumed, SDATA (p->decoding_buf),
carryover);
XSETINT (p->decoding_carryover, carryover);
- nbytes = STRING_BYTES (XSTRING (text));
- nchars = XSTRING (text)->size;
+ nbytes = SBYTES (text);
+ nchars = SCHARS (text);
if (nbytes > 0)
internal_condition_case_1 (read_process_output_call,
Fcons (outstream,
}
}
carryover = nbytes - coding->consumed;
- bcopy (chars + coding->consumed, XSTRING (p->decoding_buf)->data,
+ bcopy (chars + coding->consumed, SDATA (p->decoding_buf),
carryover);
XSETINT (p->decoding_carryover, carryover);
/* Adjust the multibyteness of TEXT to that of the buffer. */
text = (STRING_MULTIBYTE (text)
? Fstring_as_unibyte (text)
: Fstring_as_multibyte (text));
- nbytes = STRING_BYTES (XSTRING (text));
- nchars = XSTRING (text)->size;
+ nbytes = SBYTES (text);
+ nchars = SCHARS (text);
/* Insert before markers in case we are inserting where
the buffer's mark is, and the user's next command is Meta-y. */
insert_from_string_before_markers (text, 0, 0, nchars, nbytes, 0);
DEFUN ("waiting-for-user-input-p", Fwaiting_for_user_input_p, Swaiting_for_user_input_p,
0, 0, 0,
- "Returns non-nil if emacs is waiting for input from the user.\n\
-This is intended for use by asynchronous process output filters and sentinels.")
- ()
+ doc: /* Returns non-nil if emacs is waiting for input from the user.
+This is intended for use by asynchronous process output filters and sentinels. */)
+ ()
{
return (waiting_for_user_input_p ? Qt : Qnil);
}
update_status (XPROCESS (proc));
if (! EQ (XPROCESS (proc)->status, Qrun))
error ("Process %s not running",
- XSTRING (XPROCESS (proc)->name)->data);
+ SDATA (XPROCESS (proc)->name));
if (XINT (XPROCESS (proc)->outfd) < 0)
error ("Output file descriptor of %s is closed",
- XSTRING (XPROCESS (proc)->name)->data);
+ SDATA (XPROCESS (proc)->name));
coding = proc_encode_coding_system[XINT (XPROCESS (proc)->outfd)];
Vlast_coding_system_used = coding->symbol;
&& !NILP (XBUFFER (object)->enable_multibyte_characters))
|| EQ (object, Qt))
{
- coding->src_multibyte = 1;
if (!EQ (coding->symbol, XPROCESS (proc)->encode_coding_system))
/* The coding system for encoding was changed to raw-text
because we sent a unibyte text previously. Now we are
sending a multibyte text, thus we must encode it by the
original coding system specified for the current
process. */
- setup_coding_system (XPROCESS (proc)->encode_coding_system,
- coding);
+ setup_coding_system (XPROCESS (proc)->encode_coding_system, coding);
+ /* src_multibyte should be set to 1 _after_ a call to
+ setup_coding_system, since it resets src_multibyte to
+ zero. */
+ coding->src_multibyte = 1;
}
else
{
}
else if (STRINGP (object))
{
- from_byte = buf - XSTRING (object)->data;
+ from_byte = buf - SDATA (object);
from = string_byte_to_char (object, from_byte);
to = string_byte_to_char (object, from_byte + len);
}
- if (from_byte >= 0 && coding->composing != COMPOSITION_DISABLED)
- coding_save_composition (coding, from, to, object);
+ if (coding->composing != COMPOSITION_DISABLED)
+ {
+ if (from_byte >= 0)
+ coding_save_composition (coding, from, to, object);
+ else
+ coding->composing = COMPOSITION_DISABLED;
+ }
- if (STRING_BYTES (XSTRING (XPROCESS (proc)->encoding_buf)) < require)
+ if (SBYTES (XPROCESS (proc)->encoding_buf) < require)
XPROCESS (proc)->encoding_buf = make_uninit_string (require);
if (from_byte >= 0)
buf = (BUFFERP (object)
? BUF_BYTE_ADDRESS (XBUFFER (object), from_byte)
- : XSTRING (object)->data + from_byte);
+ : SDATA (object) + from_byte);
object = XPROCESS (proc)->encoding_buf;
- encode_coding (coding, (char *) buf, XSTRING (object)->data,
- len, STRING_BYTES (XSTRING (object)));
+ encode_coding (coding, (char *) buf, SDATA (object),
+ len, SBYTES (object));
len = coding->produced;
- buf = XSTRING (object)->data;
+ buf = SDATA (object);
if (temp_buf)
xfree (temp_buf);
}
Long lines need to be split into multiple batches. */
if (!NILP (XPROCESS (proc)->pty_flag))
{
- /* Starting this at zero is always correct when not the first iteration
- because the previous iteration ended by sending C-d.
+ /* Starting this at zero is always correct when not the first
+ iteration because the previous iteration ended by sending C-d.
It may not be correct for the first iteration
if a partial line was sent in a separate send_process call.
If that proves worth handling, we need to save linepos
/* Send this batch, using one or more write calls. */
while (this > 0)
{
+ int outfd = XINT (XPROCESS (proc)->outfd);
old_sigpipe = (SIGTYPE (*) ()) signal (SIGPIPE, send_process_trap);
- rv = emacs_write (XINT (XPROCESS (proc)->outfd),
- (char *) buf, this);
+#ifdef DATAGRAM_SOCKETS
+ if (DATAGRAM_CHAN_P (outfd))
+ {
+ rv = sendto (outfd, (char *) buf, this,
+ 0, datagram_address[outfd].sa,
+ datagram_address[outfd].len);
+ if (rv < 0 && errno == EMSGSIZE)
+ report_file_error ("sending datagram", Fcons (proc, Qnil));
+ }
+ else
+#endif
+ rv = emacs_write (outfd, (char *) buf, this);
signal (SIGPIPE, old_sigpipe);
if (rv < 0)
if (BUFFERP (object))
offset = BUF_PTR_BYTE_POS (XBUFFER (object), buf);
else if (STRINGP (object))
- offset = buf - XSTRING (object)->data;
+ offset = buf - SDATA (object);
XSETFASTINT (zero, 0);
#ifdef EMACS_HAS_USECS
if (BUFFERP (object))
buf = BUF_BYTE_ADDRESS (XBUFFER (object), offset);
else if (STRINGP (object))
- buf = offset + XSTRING (object)->data;
+ buf = offset + SDATA (object);
rv = 0;
}
deactivate_process (proc);
#ifdef VMS
error ("Error writing to process %s; closed it",
- XSTRING (XPROCESS (proc)->name)->data);
+ SDATA (XPROCESS (proc)->name));
#else
error ("SIGPIPE raised on process %s; closed it",
- XSTRING (XPROCESS (proc)->name)->data);
+ SDATA (XPROCESS (proc)->name));
#endif
}
}
DEFUN ("process-send-region", Fprocess_send_region, Sprocess_send_region,
- 3, 3, 0,
- "Send current contents of region as input to PROCESS.\n\
-PROCESS may be a process, a buffer, the name of a process or buffer, or\n\
-nil, indicating the current buffer's process.\n\
-Called from program, takes three arguments, PROCESS, START and END.\n\
-If the region is more than 500 characters long,\n\
-it is sent in several bunches. This may happen even for shorter regions.\n\
-Output from processes can arrive in between bunches.")
- (process, start, end)
+ 3, 3, 0,
+ doc: /* Send current contents of region as input to PROCESS.
+PROCESS may be a process, a buffer, the name of a process or buffer, or
+nil, indicating the current buffer's process.
+Called from program, takes three arguments, PROCESS, START and END.
+If the region is more than 500 characters long,
+it is sent in several bunches. This may happen even for shorter regions.
+Output from processes can arrive in between bunches. */)
+ (process, start, end)
Lisp_Object process, start, end;
{
Lisp_Object proc;
}
DEFUN ("process-send-string", Fprocess_send_string, Sprocess_send_string,
- 2, 2, 0,
- "Send PROCESS the contents of STRING as input.\n\
-PROCESS may be a process, a buffer, the name of a process or buffer, or\n\
-nil, indicating the current buffer's process.\n\
-If STRING is more than 500 characters long,\n\
-it is sent in several bunches. This may happen even for shorter strings.\n\
-Output from processes can arrive in between bunches.")
- (process, string)
+ 2, 2, 0,
+ doc: /* Send PROCESS the contents of STRING as input.
+PROCESS may be a process, a buffer, the name of a process or buffer, or
+nil, indicating the current buffer's process.
+If STRING is more than 500 characters long,
+it is sent in several bunches. This may happen even for shorter strings.
+Output from processes can arrive in between bunches. */)
+ (process, string)
Lisp_Object process, string;
{
Lisp_Object proc;
- CHECK_STRING (string, 1);
+ CHECK_STRING (string);
proc = get_process (process);
- send_process (proc, XSTRING (string)->data,
- STRING_BYTES (XSTRING (string)), string);
+ send_process (proc, SDATA (string),
+ SBYTES (string), string);
return Qnil;
}
\f
DEFUN ("process-running-child-p", Fprocess_running_child_p,
Sprocess_running_child_p, 0, 1, 0,
- "Return t if PROCESS has given the terminal to a child.\n\
-If the operating system does not make it possible to find out,\n\
-return t unconditionally.")
- (process)
+ doc: /* Return t if PROCESS has given the terminal to a child.
+If the operating system does not make it possible to find out,
+return t unconditionally. */)
+ (process)
Lisp_Object process;
{
/* Initialize in case ioctl doesn't exist or gives an error,
if (!EQ (p->childp, Qt))
error ("Process %s is not a subprocess",
- XSTRING (p->name)->data);
+ SDATA (p->name));
if (XINT (p->infd) < 0)
error ("Process %s is not active",
- XSTRING (p->name)->data);
+ SDATA (p->name));
#ifdef TIOCGPGRP
if (!NILP (p->subtty))
if (!EQ (p->childp, Qt))
error ("Process %s is not a subprocess",
- XSTRING (p->name)->data);
+ SDATA (p->name));
if (XINT (p->infd) < 0)
error ("Process %s is not active",
- XSTRING (p->name)->data);
+ SDATA (p->name));
if (NILP (p->pty_flag))
current_group = Qnil;
/* If we are using pgrps, get a pgrp number and make it negative. */
- if (!NILP (current_group))
+ if (NILP (current_group))
+ /* Send the signal to the shell's process group. */
+ gid = XFASTINT (p->pid);
+ else
{
#ifdef SIGNALS_VIA_CHARACTERS
/* If possible, send signals to the entire pgrp
#endif /* ! defined (TCGETA) */
#endif /* ! defined (TIOCGLTC) && defined (TIOCGETC) */
#endif /* ! defined HAVE_TERMIOS */
-#endif /* ! defined (SIGNALS_VIA_CHARACTERS) */
+ abort ();
+ /* The code above always returns from the function. */
+#endif /* defined (SIGNALS_VIA_CHARACTERS) */
#ifdef TIOCGPGRP
- /* Get the pgrp using the tty itself, if we have that.
+ /* Get the current pgrp using the tty itself, if we have that.
Otherwise, use the pty to get the pgrp.
On pfa systems, saka@pfu.fujitsu.co.JP writes:
"TIOCGPGRP symbol defined in sys/ioctl.h at E50.
else
err = ioctl (XINT (p->infd), TIOCGPGRP, &gid);
-#ifdef pfa
if (err == -1)
- gid = - XFASTINT (p->pid);
-#endif /* ! defined (pfa) */
+ /* If we can't get the information, assume
+ the shell owns the tty. */
+ gid = XFASTINT (p->pid);
}
+
+ /* It is not clear whether anything really can set GID to -1.
+ Perhaps on some system one of those ioctls can or could do so.
+ Or perhaps this is vestigial. */
if (gid == -1)
no_pgrp = 1;
- else
- gid = - gid;
#else /* ! defined (TIOCGPGRP ) */
/* Can't select pgrps on this system, so we know that
the child itself heads the pgrp. */
- gid = - XFASTINT (p->pid);
+ gid = XFASTINT (p->pid);
#endif /* ! defined (TIOCGPGRP ) */
/* If current_group is lambda, and the shell owns the terminal,
don't send any signal. */
- if (EQ (current_group, Qlambda) && gid == - XFASTINT (p->pid))
+ if (EQ (current_group, Qlambda) && gid == XFASTINT (p->pid))
return;
}
- else
- gid = - XFASTINT (p->pid);
switch (signo)
{
kill (gid, signo);
}
#else /* ! defined (TIOCSIGSEND) */
- EMACS_KILLPG (-gid, signo);
+ EMACS_KILLPG (gid, signo);
#endif /* ! defined (TIOCSIGSEND) */
}
DEFUN ("interrupt-process", Finterrupt_process, Sinterrupt_process, 0, 2, 0,
- "Interrupt process PROCESS.\n\
-PROCESS may be a process, a buffer, or the name of a process or buffer.\n\
-nil or no arg means current buffer's process.\n\
-Second arg CURRENT-GROUP non-nil means send signal to\n\
-the current process-group of the process's controlling terminal\n\
-rather than to the process's own process group.\n\
-If the process is a shell, this means interrupt current subjob\n\
-rather than the shell.\n\
-\n\
-If CURRENT-GROUP is `lambda', and if the shell owns the terminal,\n\
-don't send the signal.")
- (process, current_group)
+ doc: /* Interrupt process PROCESS.
+PROCESS may be a process, a buffer, or the name of a process or buffer.
+nil or no arg means current buffer's process.
+Second arg CURRENT-GROUP non-nil means send signal to
+the current process-group of the process's controlling terminal
+rather than to the process's own process group.
+If the process is a shell, this means interrupt current subjob
+rather than the shell.
+
+If CURRENT-GROUP is `lambda', and if the shell owns the terminal,
+don't send the signal. */)
+ (process, current_group)
Lisp_Object process, current_group;
{
process_send_signal (process, SIGINT, current_group, 0);
}
DEFUN ("kill-process", Fkill_process, Skill_process, 0, 2, 0,
- "Kill process PROCESS. May be process or name of one.\n\
-See function `interrupt-process' for more details on usage.")
- (process, current_group)
+ doc: /* Kill process PROCESS. May be process or name of one.
+See function `interrupt-process' for more details on usage. */)
+ (process, current_group)
Lisp_Object process, current_group;
{
process_send_signal (process, SIGKILL, current_group, 0);
}
DEFUN ("quit-process", Fquit_process, Squit_process, 0, 2, 0,
- "Send QUIT signal to process PROCESS. May be process or name of one.\n\
-See function `interrupt-process' for more details on usage.")
- (process, current_group)
+ doc: /* Send QUIT signal to process PROCESS. May be process or name of one.
+See function `interrupt-process' for more details on usage. */)
+ (process, current_group)
Lisp_Object process, current_group;
{
process_send_signal (process, SIGQUIT, current_group, 0);
}
DEFUN ("stop-process", Fstop_process, Sstop_process, 0, 2, 0,
- "Stop process PROCESS. May be process or name of one.\n\
-See function `interrupt-process' for more details on usage.")
- (process, current_group)
+ doc: /* Stop process PROCESS. May be process or name of one.
+See function `interrupt-process' for more details on usage.
+If PROCESS is a network process, inhibit handling of incoming traffic. */)
+ (process, current_group)
Lisp_Object process, current_group;
{
+#ifdef HAVE_SOCKETS
+ if (PROCESSP (process) && NETCONN_P (process))
+ {
+ struct Lisp_Process *p;
+
+ p = XPROCESS (process);
+ if (NILP (p->command)
+ && XINT (p->infd) >= 0)
+ {
+ FD_CLR (XINT (p->infd), &input_wait_mask);
+ FD_CLR (XINT (p->infd), &non_keyboard_wait_mask);
+ }
+ p->command = Qt;
+ return process;
+ }
+#endif
#ifndef SIGTSTP
error ("no SIGTSTP support");
#else
}
DEFUN ("continue-process", Fcontinue_process, Scontinue_process, 0, 2, 0,
- "Continue process PROCESS. May be process or name of one.\n\
-See function `interrupt-process' for more details on usage.")
- (process, current_group)
+ doc: /* Continue process PROCESS. May be process or name of one.
+See function `interrupt-process' for more details on usage.
+If PROCESS is a network process, resume handling of incoming traffic. */)
+ (process, current_group)
Lisp_Object process, current_group;
{
+#ifdef HAVE_SOCKETS
+ if (PROCESSP (process) && NETCONN_P (process))
+ {
+ struct Lisp_Process *p;
+
+ p = XPROCESS (process);
+ if (EQ (p->command, Qt)
+ && XINT (p->infd) >= 0
+ && (!EQ (p->filter, Qt) || EQ (p->status, Qlisten)))
+ {
+ FD_SET (XINT (p->infd), &input_wait_mask);
+ FD_SET (XINT (p->infd), &non_keyboard_wait_mask);
+ }
+ p->command = Qnil;
+ return process;
+ }
+#endif
#ifdef SIGCONT
process_send_signal (process, SIGCONT, current_group, 0);
#else
}
DEFUN ("signal-process", Fsignal_process, Ssignal_process,
- 2, 2, "nProcess number: \nnSignal code: ",
- "Send the process with process id PID the signal with code SIGCODE.\n\
-PID must be an integer. The process need not be a child of this Emacs.\n\
-SIGCODE may be an integer, or a symbol whose name is a signal name.")
- (pid, sigcode)
- Lisp_Object pid, sigcode;
+ 2, 2, "sProcess (name or number): \nnSignal code: ",
+ doc: /* Send PROCESS the signal with code SIGCODE.
+PROCESS may also be an integer specifying the process id of the
+process to signal; in this case, the process need not be a child of
+this Emacs.
+SIGCODE may be an integer, or a symbol whose name is a signal name. */)
+ (process, sigcode)
+ Lisp_Object process, sigcode;
{
- CHECK_NUMBER (pid, 0);
+ Lisp_Object pid;
+
+ if (INTEGERP (process))
+ {
+ pid = process;
+ goto got_it;
+ }
+
+ if (STRINGP (process))
+ {
+ Lisp_Object tem;
+ if (tem = Fget_process (process), NILP (tem))
+ {
+ pid = Fstring_to_number (process, make_number (10));
+ if (XINT (pid) != 0)
+ goto got_it;
+ }
+ process = tem;
+ }
+ else
+ process = get_process (process);
+
+ if (NILP (process))
+ return process;
+
+ CHECK_PROCESS (process);
+ pid = XPROCESS (process)->pid;
+ if (!INTEGERP (pid) || XINT (pid) <= 0)
+ error ("Cannot signal process %s", SDATA (XPROCESS (process)->name));
+
+ got_it:
#define handle_signal(NAME, VALUE) \
else if (!strcmp (name, NAME)) \
{
unsigned char *name;
- CHECK_SYMBOL (sigcode, 1);
- name = XSYMBOL (sigcode)->name->data;
+ CHECK_SYMBOL (sigcode);
+ name = SDATA (SYMBOL_NAME (sigcode));
if (0)
;
}
DEFUN ("process-send-eof", Fprocess_send_eof, Sprocess_send_eof, 0, 1, 0,
- "Make PROCESS see end-of-file in its input.\n\
-EOF comes after any text already sent to it.\n\
-PROCESS may be a process, a buffer, the name of a process or buffer, or\n\
-nil, indicating the current buffer's process.\n\
-If PROCESS is a network connection, or is a process communicating\n\
-through a pipe (as opposed to a pty), then you cannot send any more\n\
-text to PROCESS after you call this function.")
- (process)
+ doc: /* Make PROCESS see end-of-file in its input.
+EOF comes after any text already sent to it.
+PROCESS may be a process, a buffer, the name of a process or buffer, or
+nil, indicating the current buffer's process.
+If PROCESS is a network connection, or is a process communicating
+through a pipe (as opposed to a pty), then you cannot send any more
+text to PROCESS after you call this function. */)
+ (process)
Lisp_Object process;
{
Lisp_Object proc;
struct coding_system *coding;
+ if (DATAGRAM_CONN_P (process))
+ return process;
+
proc = get_process (process);
coding = proc_encode_coding_system[XINT (XPROCESS (proc)->outfd)];
if (! NILP (XPROCESS (proc)->raw_status_low))
update_status (XPROCESS (proc));
if (! EQ (XPROCESS (proc)->status, Qrun))
- error ("Process %s not running", XSTRING (XPROCESS (proc)->name)->data);
+ error ("Process %s not running", SDATA (XPROCESS (proc)->name));
if (CODING_REQUIRE_FLUSHING (coding))
{
get another signal.
Otherwise (on systems that have WNOHANG), loop around
to use up all the processes that have something to tell us. */
-#if defined (USG) && ! (defined (HPUX) && defined (WNOHANG)) || defined (WINDOWSNT)
+#if (defined WINDOWSNT \
+ || (defined USG && !defined GNU_LINUX \
+ && !(defined HPUX && defined WNOHANG)))
#if defined (USG) && ! defined (POSIX_SIGNALS)
signal (signo, sigchld_handler);
#endif
{
Lisp_Object sentinel, obuffer, odeactivate, okeymap;
register struct Lisp_Process *p = XPROCESS (proc);
- int count = specpdl_ptr - specpdl;
+ int count = SPECPDL_INDEX ();
int outer_running_asynch_code = running_asynch_code;
int waiting = waiting_for_user_input_p;
/* Report all recent events of a change in process status
(either run the sentinel or output a message).
- This is done while Emacs is waiting for keyboard input. */
+ This is usually done while Emacs is waiting for keyboard input
+ but can be done at other times. */
void
status_notify ()
/* If process is still active, read any output that remains. */
while (! EQ (p->filter, Qt)
+ && ! EQ (p->status, Qconnect)
+ && ! EQ (p->status, Qlisten)
+ && ! EQ (p->command, Qt) /* Network process not stopped. */
&& XINT (p->infd) >= 0
&& read_process_output (proc, XINT (p->infd)) > 0);
\f
DEFUN ("set-process-coding-system", Fset_process_coding_system,
Sset_process_coding_system, 1, 3, 0,
- "Set coding systems of PROCESS to DECODING and ENCODING.\n\
-DECODING will be used to decode subprocess output and ENCODING to\n\
-encode subprocess input.")
- (proc, decoding, encoding)
+ doc: /* Set coding systems of PROCESS to DECODING and ENCODING.
+DECODING will be used to decode subprocess output and ENCODING to
+encode subprocess input. */)
+ (proc, decoding, encoding)
register Lisp_Object proc, decoding, encoding;
{
register struct Lisp_Process *p;
- CHECK_PROCESS (proc, 0);
+ CHECK_PROCESS (proc);
p = XPROCESS (proc);
if (XINT (p->infd) < 0)
- error ("Input file descriptor of %s closed", XSTRING (p->name)->data);
+ error ("Input file descriptor of %s closed", SDATA (p->name));
if (XINT (p->outfd) < 0)
- error ("Output file descriptor of %s closed", XSTRING (p->name)->data);
+ error ("Output file descriptor of %s closed", SDATA (p->name));
p->decode_coding_system = Fcheck_coding_system (decoding);
p->encode_coding_system = Fcheck_coding_system (encoding);
DEFUN ("process-coding-system",
Fprocess_coding_system, Sprocess_coding_system, 1, 1, 0,
- "Return a cons of coding systems for decoding and encoding of PROCESS.")
- (proc)
+ doc: /* Return a cons of coding systems for decoding and encoding of PROCESS. */)
+ (proc)
register Lisp_Object proc;
{
- CHECK_PROCESS (proc, 0);
+ CHECK_PROCESS (proc);
return Fcons (XPROCESS (proc)->decode_coding_system,
XPROCESS (proc)->encode_coding_system);
}
}
bzero (proc_decode_coding_system, sizeof proc_decode_coding_system);
bzero (proc_encode_coding_system, sizeof proc_encode_coding_system);
+#ifdef DATAGRAM_SOCKETS
+ bzero (datagram_address, sizeof datagram_address);
+#endif
+
+#ifdef HAVE_SOCKETS
+ {
+ Lisp_Object subfeatures = Qnil;
+#define ADD_SUBFEATURE(key, val) \
+ subfeatures = Fcons (Fcons (key, Fcons (val, Qnil)), subfeatures)
+
+#ifdef NON_BLOCKING_CONNECT
+ ADD_SUBFEATURE (QCnowait, Qt);
+#endif
+#ifdef DATAGRAM_SOCKETS
+ ADD_SUBFEATURE (QCtype, Qdatagram);
+#endif
+#ifdef HAVE_LOCAL_SOCKETS
+ ADD_SUBFEATURE (QCfamily, Qlocal);
+#endif
+#ifdef HAVE_GETSOCKNAME
+ ADD_SUBFEATURE (QCservice, Qt);
+#endif
+#if !defined(TERM) && (defined(O_NONBLOCK) || defined(O_NDELAY))
+ ADD_SUBFEATURE (QCserver, Qt);
+#endif
+#ifdef SO_BINDTODEVICE
+ ADD_SUBFEATURE (QCoptions, intern ("bindtodevice"));
+#endif
+#ifdef SO_BROADCAST
+ ADD_SUBFEATURE (QCoptions, intern ("broadcast"));
+#endif
+#ifdef SO_DONTROUTE
+ ADD_SUBFEATURE (QCoptions, intern ("dontroute"));
+#endif
+#ifdef SO_KEEPALIVE
+ ADD_SUBFEATURE (QCoptions, intern ("keepalive"));
+#endif
+#ifdef SO_LINGER
+ ADD_SUBFEATURE (QCoptions, intern ("linger"));
+#endif
+#ifdef SO_OOBINLINE
+ ADD_SUBFEATURE (QCoptions, intern ("oobinline"));
+#endif
+#ifdef SO_PRIORITY
+ ADD_SUBFEATURE (QCoptions, intern ("priority"));
+#endif
+#ifdef SO_REUSEADDR
+ ADD_SUBFEATURE (QCoptions, intern ("reuseaddr"));
+#endif
+ Fprovide (intern ("make-network-process"), subfeatures);
+ }
+#endif /* HAVE_SOCKETS */
}
void
staticpro (&Qopen);
Qclosed = intern ("closed");
staticpro (&Qclosed);
-
+ Qconnect = intern ("connect");
+ staticpro (&Qconnect);
+ Qfailed = intern ("failed");
+ staticpro (&Qfailed);
+ Qlisten = intern ("listen");
+ staticpro (&Qlisten);
+ Qlocal = intern ("local");
+ staticpro (&Qlocal);
+ Qdatagram = intern ("datagram");
+ staticpro (&Qdatagram);
+
+ QCname = intern (":name");
+ staticpro (&QCname);
+ QCbuffer = intern (":buffer");
+ staticpro (&QCbuffer);
+ QChost = intern (":host");
+ staticpro (&QChost);
+ QCservice = intern (":service");
+ staticpro (&QCservice);
+ QCtype = intern (":type");
+ staticpro (&QCtype);
+ QClocal = intern (":local");
+ staticpro (&QClocal);
+ QCremote = intern (":remote");
+ staticpro (&QCremote);
+ QCcoding = intern (":coding");
+ staticpro (&QCcoding);
+ QCserver = intern (":server");
+ staticpro (&QCserver);
+ QCnowait = intern (":nowait");
+ staticpro (&QCnowait);
+ QCsentinel = intern (":sentinel");
+ staticpro (&QCsentinel);
+ QClog = intern (":log");
+ staticpro (&QClog);
+ QCnoquery = intern (":noquery");
+ staticpro (&QCnoquery);
+ QCstop = intern (":stop");
+ staticpro (&QCstop);
+ QCoptions = intern (":options");
+ staticpro (&QCoptions);
+
Qlast_nonmenu_event = intern ("last-nonmenu-event");
staticpro (&Qlast_nonmenu_event);
staticpro (&Vprocess_alist);
DEFVAR_BOOL ("delete-exited-processes", &delete_exited_processes,
- "*Non-nil means delete processes immediately when they exit.\n\
-nil means don't delete them until `list-processes' is run.");
+ doc: /* *Non-nil means delete processes immediately when they exit.
+nil means don't delete them until `list-processes' is run. */);
delete_exited_processes = 1;
DEFVAR_LISP ("process-connection-type", &Vprocess_connection_type,
- "Control type of device used to communicate with subprocesses.\n\
-Values are nil to use a pipe, or t or `pty' to use a pty.\n\
-The value has no effect if the system has no ptys or if all ptys are busy:\n\
-then a pipe is used in any case.\n\
-The value takes effect when `start-process' is called.");
+ doc: /* Control type of device used to communicate with subprocesses.
+Values are nil to use a pipe, or t or `pty' to use a pty.
+The value has no effect if the system has no ptys or if all ptys are busy:
+then a pipe is used in any case.
+The value takes effect when `start-process' is called. */);
Vprocess_connection_type = Qt;
defsubr (&Sprocessp);
defsubr (&Sset_process_window_size);
defsubr (&Sset_process_inherit_coding_system_flag);
defsubr (&Sprocess_inherit_coding_system_flag);
- defsubr (&Sprocess_kill_without_query);
+ defsubr (&Sset_process_query_on_exit_flag);
+ defsubr (&Sprocess_query_on_exit_flag);
defsubr (&Sprocess_contact);
defsubr (&Slist_processes);
defsubr (&Sprocess_list);
defsubr (&Sstart_process);
#ifdef HAVE_SOCKETS
- defsubr (&Sopen_network_stream);
+ defsubr (&Sset_network_process_options);
+ defsubr (&Smake_network_process);
+ defsubr (&Sformat_network_address);
#endif /* HAVE_SOCKETS */
+#ifdef DATAGRAM_SOCKETS
+ defsubr (&Sprocess_datagram_address);
+ defsubr (&Sset_process_datagram_address);
+#endif
defsubr (&Saccept_process_output);
defsubr (&Sprocess_send_region);
defsubr (&Sprocess_send_string);
extern EMACS_TIME timer_check ();
extern int timers_run;
+Lisp_Object QCtype;
+
/* As described above, except assuming that there are no subprocesses:
Wait for timeout to elapse and/or keyboard input to be available.
EMACS_TIME end_time, timeout;
SELECT_TYPE waitchannels;
int xerrno;
- Lisp_Object *wait_for_cell = 0;
+ /* Either nil or a cons cell, the car of which is of interest and
+ may be changed outside of this routine. */
+ Lisp_Object wait_for_cell = Qnil;
/* If waiting for non-nil in a cell, record where. */
if (CONSP (read_kbd))
{
- wait_for_cell = &XCAR (read_kbd);
+ wait_for_cell = read_kbd;
XSETFASTINT (read_kbd, 0);
}
}
/* Turn off periodic alarms (in case they are in use)
+ and then turn off any other atimers,
because the select emulator uses alarms. */
+ stop_polling ();
turn_on_atimers (0);
while (1)
QUIT;
/* Exit now if the cell we're waiting for became non-nil. */
- if (wait_for_cell && ! NILP (*wait_for_cell))
+ if (! NILP (wait_for_cell) && ! NILP (XCAR (wait_for_cell)))
break;
/* Compute time from now till when time limit is up */
run timer events directly.
(Callers that will immediately read keyboard events
call timer_delay on their own.) */
- if (! wait_for_cell)
+ if (NILP (wait_for_cell))
{
EMACS_TIME timer_delay;
/* Wait till there is something to do. */
- if (! XINT (read_kbd) && wait_for_cell == 0)
+ if (! XINT (read_kbd) && NILP (wait_for_cell))
FD_ZERO (&waitchannels);
else
FD_SET (0, &waitchannels);
input at all when wait_for_cell, but the code
has been this way since July 1994.
Try changing this after version 19.31.) */
- if (wait_for_cell
+ if (! NILP (wait_for_cell)
&& detect_input_pending ())
{
swallow_events (do_display);
}
/* Exit now if the cell we're waiting for became non-nil. */
- if (wait_for_cell && ! NILP (*wait_for_cell))
+ if (! NILP (wait_for_cell) && ! NILP (XCAR (wait_for_cell)))
break;
}
}
+/* Don't confuse make-docfile by having two doc strings for this function.
+ make-docfile does not pay attention to #if, for good reason! */
DEFUN ("get-buffer-process", Fget_buffer_process, Sget_buffer_process, 1, 1, 0,
- /* Don't confuse make-docfile by having two doc strings for this function.
- make-docfile does not pay attention to #if, for good reason! */
- 0)
- (name)
+ 0)
+ (name)
register Lisp_Object name;
{
return Qnil;
}
-DEFUN ("process-inherit-coding-system-flag",
- Fprocess_inherit_coding_system_flag, Sprocess_inherit_coding_system_flag,
- 1, 1, 0,
/* Don't confuse make-docfile by having two doc strings for this function.
make-docfile does not pay attention to #if, for good reason! */
- 0)
- (process)
+DEFUN ("process-inherit-coding-system-flag",
+ Fprocess_inherit_coding_system_flag, Sprocess_inherit_coding_system_flag,
+ 1, 1, 0,
+ 0)
+ (process)
register Lisp_Object process;
{
/* Ignore the argument and return the value of
void
syms_of_process ()
{
+ QCtype = intern (":type");
+ staticpro (&QCtype);
+
defsubr (&Sget_buffer_process);
defsubr (&Sprocess_inherit_coding_system_flag);
}
HCoop / bpt / emacs.git / blobdiff