/* Interfaces to system-dependent kernel and library entries.
- Copyright (C) 1985, 86, 87, 88, 93, 94, 95 Free Software Foundation, Inc.
+ Copyright (C) 1985, 86,87,88,93,94,95, 1999, 2000, 2001
+ Free Software Foundation, Inc.
This file is part of GNU Emacs.
Boston, MA 02111-1307, USA. */
+#include "config.h"
#include <signal.h>
#include <setjmp.h>
-
-#include <config.h>
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
#include "lisp.h"
+/* Including stdlib.h isn't necessarily enough to get srandom
+ declared, e.g. without __USE_XOPEN_EXTENDED with glibc 2. */
+#ifdef HAVE_RANDOM
+#if 0 /* It turns out that defining _OSF_SOURCE in osf5-0.h gets
+ random prototyped as returning `int'. It looks to me as
+ though the best way to DTRT is to prefer the rand48 functions
+ (per libc.info). -- fx */
+extern long int random P_ ((void));
+#endif
+#if 0 /* Don't prototype srandom; it takes an unsigned argument on
+ some systems, and an unsigned long on others, like FreeBSD
+ 4.1. */
+extern void srandom P_ ((unsigned int));
+#endif
+#endif
+
#include "blockinput.h"
#undef NULL
-#define min(x,y) ((x) > (y) ? (y) : (x))
+#ifdef macintosh
+/* It is essential to include stdlib.h so that this file picks up
+ the correct definitions of rand, srand, and RAND_MAX.
+ Otherwise random numbers will not work correctly. */
+#include <stdlib.h>
-/* In this file, open, read and write refer to the system calls,
- not our sugared interfaces sys_open, sys_read and sys_write.
- Contrariwise, for systems where we use the system calls directly,
- define sys_read, etc. here as aliases for them. */
-#ifndef read
-#define sys_read read
-#define sys_write write
-#endif /* `read' is not a macro */
-
-#undef read
-#undef write
+#ifndef subprocesses
+/* Nonzero means delete a process right away if it exits (process.c). */
+static int delete_exited_processes;
+#endif
+#endif /* macintosh */
#ifdef WINDOWSNT
-#define read _read
-#define write _write
+#define read sys_read
+#define write sys_write
#include <windows.h>
-extern int errno;
-#endif /* not WINDOWSNT */
-
-#ifndef close
-#define sys_close close
-#else
-#undef close
+#ifndef NULL
+#define NULL 0
#endif
-
-#ifndef open
-#define sys_open open
-#else /* `open' is a macro */
-#undef open
-#endif /* `open' is a macro */
+#endif /* not WINDOWSNT */
/* Does anyone other than VMS need this? */
#ifndef fwrite
#undef fwrite
#endif
-#ifndef HAVE_H_ERRNO
-extern int h_errno;
-#endif
-
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#endif
+#ifdef HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+
+#ifdef HAVE_SETPGID
+#if !defined (USG) || defined (BSD_PGRPS)
+#undef setpgrp
+#define setpgrp setpgid
+#endif
+#endif
+
/* Get SI_SRPC_DOMAIN, if it is available. */
#ifdef HAVE_SYS_SYSTEMINFO_H
#include <sys/systeminfo.h>
#endif
#endif
+#ifndef USE_CRT_DLL
+#ifndef errno
extern int errno;
+#endif
+#endif
#ifdef VMS
#include <rms.h>
#undef TIOCSWINSZ
#endif
-#ifdef USG
+#if defined (USG) || defined (DGUX)
#include <sys/utsname.h>
-#include <string.h>
#ifndef MEMORY_IN_STRING_H
#include <memory.h>
#endif
#include <sys/ptem.h>
#endif
#endif /* TIOCGWINSZ or ISC4_0 */
-#endif /* USG */
+#endif /* USG or DGUX */
extern int quit_char;
+#include "keyboard.h"
#include "frame.h"
#include "window.h"
#include "termhooks.h"
#endif
#endif
-#ifndef VFORK_RETURN_TYPE
-#define VFORK_RETURN_TYPE int
-#endif
-
/* LPASS8 is new in 4.3, and makes cbreak mode provide all 8 bits. */
#ifndef LPASS8
#define LPASS8 0
};
#endif
+#ifdef HAVE_SPEED_T
+#include <termios.h>
+#else
#if defined (HAVE_LIBNCURSES) && ! defined (NCURSES_OSPEED_T)
-extern short ospeed;
#else
-#if defined (HAVE_TERMIOS_H) && defined (LINUX)
+#if defined (HAVE_TERMIOS_H) && defined (GNU_LINUX)
#include <termios.h>
-/* HJL's version of libc is said to need this on the Alpha.
- On the other hand, DEC OSF1 on the Alpha needs ospeed to be a short. */
-extern speed_t ospeed;
-#else
-extern short ospeed;
#endif
#endif
+#endif
+
+int emacs_ospeed;
/* The file descriptor for Emacs's input terminal.
Under Unix, this is normally zero except when using X;
under VMS, we place the input channel number here. */
int input_fd;
+
+void croak P_ ((char *));
+
+#ifdef AIXHFT
+void hft_init ();
+void hft_reset ();
+#endif
+
+/* Temporary used by `sigblock' when defined in terms of signprocmask. */
+
+SIGMASKTYPE sigprocmask_set;
+
\f
/* Specify a different file descriptor for further input operations. */
/* Discard pending input on descriptor input_fd. */
+void
discard_tty_input ()
{
#ifndef WINDOWSNT
/* Arrange for character C to be read as the next input from
the terminal. */
+void
stuff_char (c)
char c;
{
#endif /* SIGTSTP */
\f
+void
init_baud_rate ()
{
if (noninteractive)
- ospeed = 0;
+ emacs_ospeed = 0;
else
{
#ifdef INIT_BAUD_RATE
INIT_BAUD_RATE ();
#else
#ifdef DOS_NT
- ospeed = 15;
+ emacs_ospeed = 15;
#else /* not DOS_NT */
#ifdef VMS
struct sensemode sg;
SYS$QIOW (0, input_fd, IO$_SENSEMODE, &sg, 0, 0,
&sg.class, 12, 0, 0, 0, 0 );
- ospeed = sg.xmit_baud;
+ emacs_ospeed = sg.xmit_baud;
#else /* not VMS */
#ifdef HAVE_TERMIOS
struct termios sg;
sg.c_cflag = B9600;
tcgetattr (input_fd, &sg);
- ospeed = cfgetospeed (&sg);
+ emacs_ospeed = cfgetospeed (&sg);
#if defined (USE_GETOBAUD) && defined (getobaud)
/* m88k-motorola-sysv3 needs this (ghazi@noc.rutgers.edu) 9/1/94. */
- if (ospeed == 0)
- ospeed = getobaud (sg.c_cflag);
+ if (emacs_ospeed == 0)
+ emacs_ospeed = getobaud (sg.c_cflag);
#endif
#else /* neither VMS nor TERMIOS */
#ifdef HAVE_TERMIO
#else
ioctl (input_fd, TCGETA, &sg);
#endif
- ospeed = sg.c_cflag & CBAUD;
+ emacs_ospeed = sg.c_cflag & CBAUD;
#else /* neither VMS nor TERMIOS nor TERMIO */
struct sgttyb sg;
sg.sg_ospeed = B9600;
if (ioctl (input_fd, TIOCGETP, &sg) < 0)
abort ();
- ospeed = sg.sg_ospeed;
+ emacs_ospeed = sg.sg_ospeed;
#endif /* not HAVE_TERMIO */
#endif /* not HAVE_TERMIOS */
#endif /* not VMS */
#endif /* not INIT_BAUD_RATE */
}
- baud_rate = (ospeed < sizeof baud_convert / sizeof baud_convert[0]
- ? baud_convert[ospeed] : 9600);
+ baud_rate = (emacs_ospeed < sizeof baud_convert / sizeof baud_convert[0]
+ ? baud_convert[emacs_ospeed] : 9600);
if (baud_rate == 0)
baud_rate = 1200;
}
/*ARGSUSED*/
+void
set_exclusive_use (fd)
int fd;
{
/* Wait for subprocess with process id `pid' to terminate and
make sure it will get eliminated (not remain forever as a zombie) */
+void
wait_for_termination (pid)
int pid;
{
break;
wait (0);
#else /* neither BSD_SYSTEM nor UNIPLUS: random sysV */
-#ifdef POSIX_SIGNALS /* would this work for LINUX as well? */
+#ifdef POSIX_SIGNALS /* would this work for GNU/Linux as well? */
sigblock (sigmask (SIGCHLD));
- if (0 > kill (pid, 0))
+ errno = 0;
+ if (kill (pid, 0) == -1 && errno == ESRCH)
{
sigunblock (sigmask (SIGCHLD));
break;
}
+
+ /* FIXME: Since sigpause is not POSIX and its use is deprecated,
+ this should probably be `sigsuspend (&empty_mask)', which is
+ POSIX. I'm not making that change right away because the
+ release is nearing. 2001-09-20 gerd. */
sigpause (SIGEMPTYMASK);
#else /* not POSIX_SIGNALS */
#ifdef HAVE_SYSV_SIGPAUSE
* (may flush input as well; it does not matter the way we use it)
*/
+void
flush_pending_output (channel)
int channel;
{
It should not echo or do line-editing, since that is done
in Emacs. No padding needed for insertion into an Emacs buffer. */
+void
child_setup_tty (out)
int out;
{
#endif
s.main.c_lflag &= ~ECHO; /* Disable echo */
s.main.c_lflag |= ISIG; /* Enable signals */
+#if 0 /* This causes bugs in (for instance) telnet to certain sites. */
+ s.main.c_iflag &= ~ICRNL; /* Disable map of CR to NL on input */
+#ifdef INLCR /* Just being cautious, since I can't check how
+ widespread INLCR is--rms. */
+ s.main.c_iflag &= ~INLCR; /* Disable map of NL to CR on input */
+#endif
+#endif
#ifdef IUCLC
s.main.c_iflag &= ~IUCLC; /* Disable downcasing on input. */
#endif
struct save_signal
{
int code;
- SIGTYPE (*handler) ();
+ SIGTYPE (*handler) P_ ((int));
};
+static void save_signal_handlers P_ ((struct save_signal *));
+static void restore_signal_handlers P_ ((struct save_signal *));
+
/* Suspend the Emacs process; give terminal to its superior. */
+void
sys_suspend ()
{
#ifdef VMS
}
return -1;
#else
-#if defined(SIGTSTP) && !defined(MSDOS)
+#if defined (SIGTSTP) && !defined (MSDOS)
{
int pgrp = EMACS_GETPGRP (0);
/* Fork a subshell. */
+#ifndef macintosh
+void
sys_subshell ()
{
#ifndef VMS
/* Use our buffer's default directory for the subshell. */
if (str)
- chdir (str);
+ chdir ((char *) str);
#ifdef subprocesses
close_process_descs (); /* Close Emacs's pipes/ptys */
synch_process_alive = 0;
#endif /* !VMS */
}
+#endif /* !macintosh */
+static void
save_signal_handlers (saved_handlers)
struct save_signal *saved_handlers;
{
while (saved_handlers->code)
{
saved_handlers->handler
- = (SIGTYPE (*) ()) signal (saved_handlers->code, SIG_IGN);
+ = (SIGTYPE (*) P_ ((int))) signal (saved_handlers->code, SIG_IGN);
saved_handlers++;
}
}
+static void
restore_signal_handlers (saved_handlers)
struct save_signal *saved_handlers;
{
int old_fcntl_flags;
+void
init_sigio (fd)
int fd;
{
interrupts_deferred = 0;
}
+void
reset_sigio ()
{
unrequest_sigio ();
#ifdef FASYNC /* F_SETFL does not imply existence of FASYNC */
+void
request_sigio ()
{
if (read_socket_hook)
interrupts_deferred = 0;
}
+void
unrequest_sigio ()
{
if (read_socket_hook)
#else /* no FASYNC */
#ifdef STRIDE /* Stride doesn't have FASYNC - use FIOASYNC */
+void
request_sigio ()
{
int on = 1;
interrupts_deferred = 0;
}
+void
unrequest_sigio ()
{
int off = 0;
#include <termios.h>
+void
request_sigio ()
{
int on = 1;
if (read_socket_hook)
return;
- sigemptyset(&st);
- sigaddset(&st, SIGIO);
+ sigemptyset (&st);
+ sigaddset (&st, SIGIO);
ioctl (input_fd, FIOASYNC, &on);
interrupts_deferred = 0;
- sigprocmask(SIG_UNBLOCK, &st, (sigset_t *)0);
+ sigprocmask (SIG_UNBLOCK, &st, (sigset_t *)0);
}
+void
unrequest_sigio ()
{
int off = 0;
#else /* ! _CX_UX */
+void
request_sigio ()
{
if (read_socket_hook)
croak ("request_sigio");
}
+void
unrequest_sigio ()
{
if (read_socket_hook)
When we are in the foreground, but not started in our own process
group, redirect the TTY to point to our own process group. We need
to be in our own process group to receive SIGIO properly. */
+void
narrow_foreground_group ()
{
int me = getpid ();
}
/* Set the tty to our original foreground group. */
+void
widen_foreground_group ()
{
if (inherited_pgroup != getpid ())
/* Retrieve the primary parameters - baud rate, character size, etcetera. */
#ifdef HAVE_TCATTR
/* We have those nifty POSIX tcmumbleattr functions. */
+ bzero (&settings->main, sizeof (settings->main));
if (tcgetattr (fd, &settings->main) < 0)
return -1;
int i;
/* We have those nifty POSIX tcmumbleattr functions.
William J. Smith <wjs@wiis.wang.com> writes:
- "POSIX 1003.1 defines tcsetattr() to return success if it was
+ "POSIX 1003.1 defines tcsetattr to return success if it was
able to perform any of the requested actions, even if some
of the requested actions could not be performed.
We must read settings back to ensure tty setup properly.
{
struct termios new;
+ bzero (&new, sizeof (new));
/* Get the current settings, and see if they're what we asked for. */
tcgetattr (fd, &new);
/* We cannot use memcmp on the whole structure here because under
&& new.c_oflag == settings->main.c_oflag
&& new.c_cflag == settings->main.c_cflag
&& new.c_lflag == settings->main.c_lflag
- && memcmp(new.c_cc, settings->main.c_cc, NCCS) == 0)
+ && memcmp (new.c_cc, settings->main.c_cc, NCCS) == 0)
break;
else
continue;
but if so, this does no harm,
and using the same name avoids wasting the other one's space. */
+#ifdef nec_ews_svr4
+extern char *_sobuf ;
+#else
#if defined (USG) || defined (DGUX)
unsigned char _sobuf[BUFSIZ+8];
#else
char _sobuf[BUFSIZ];
#endif
+#endif
#ifdef HAVE_LTCHARS
static struct ltchars new_ltchars = {-1,-1,-1,-1,-1,-1};
static struct tchars new_tchars = {-1,-1,-1,-1,-1,-1};
#endif
+void
init_sys_modes ()
{
struct emacs_tty tty;
+#ifdef macintosh
+/* cus-start.el complains if delete-exited-processes is not defined */
+#ifndef subprocesses
+ DEFVAR_BOOL ("delete-exited-processes", &delete_exited_processes,
+ doc: /* *Non-nil means delete processes immediately when they exit.
+nil means don't delete them until `list-processes' is run. */);
+ delete_exited_processes = 0;
+#endif
+#endif /* not macintosh */
+
#ifdef VMS
#if 0
static int oob_chars[2] = {0, 1 << 7}; /* catch C-g's */
tty.main.tt2_char |= TT2$M_PASTHRU | TT2$M_XON;
#else /* not VMS (BSD, that is) */
#ifndef DOS_NT
- Vtty_erase_char = tty.main.sg_erase;
+ XSETINT (Vtty_erase_char, tty.main.sg_erase);
tty.main.sg_flags &= ~(ECHO | CRMOD | XTABS);
if (meta_key)
tty.main.sg_flags |= ANYP;
/* This symbol is defined on recent USG systems.
Someone says without this call USG won't really buffer the file
even with a call to setbuf. */
- setvbuf (stdout, _sobuf, _IOFBF, sizeof _sobuf);
+ setvbuf (stdout, (char *) _sobuf, _IOFBF, sizeof _sobuf);
#else
- setbuf (stdout, _sobuf);
+ setbuf (stdout, (char *) _sobuf);
#endif
#ifdef HAVE_WINDOW_SYSTEM
/* Emacs' window system on MSDOG uses the `internal terminal' and therefore
#endif
set_terminal_modes ();
+ if (!term_initted
+ && FRAMEP (Vterminal_frame)
+ && FRAME_TERMCAP_P (XFRAME (Vterminal_frame)))
+ init_frame_faces (XFRAME (Vterminal_frame));
+
if (term_initted && no_redraw_on_reenter)
{
if (display_completed)
/* Return nonzero if safe to use tabs in output.
At the time this is called, init_sys_modes has not been done yet. */
+int
tabs_safe_p ()
{
struct emacs_tty tty;
Store number of lines into *HEIGHTP and width into *WIDTHP.
We store 0 if there's no valid information. */
+void
get_frame_size (widthp, heightp)
int *widthp, *heightp;
{
\f
/* Prepare the terminal for exiting Emacs; move the cursor to the
bottom of the frame, turn off interrupt-driven I/O, etc. */
+void
reset_sys_modes ()
{
+ struct frame *sf;
+
if (noninteractive)
{
fflush (stdout);
)
return;
#endif
- cursor_to (FRAME_HEIGHT (selected_frame) - 1, 0);
- clear_end_of_line (FRAME_WIDTH (selected_frame));
+ sf = SELECTED_FRAME ();
+ cursor_to (FRAME_HEIGHT (sf) - 1, 0);
+ clear_end_of_line (FRAME_WIDTH (sf));
/* clear_end_of_line may move the cursor */
- cursor_to (FRAME_HEIGHT (selected_frame) - 1, 0);
+ cursor_to (FRAME_HEIGHT (sf) - 1, 0);
#if defined (IBMR2AIX) && defined (AIXHFT)
{
/* HFT devices normally use ^J as a LF/CR. We forced it to
/* Set up the proper status flags for use of a pty. */
+void
setup_pty (fd)
int fd;
{
Since the latter lossage is more benign, we may as well
lose that way. -- cph */
#ifdef FIONBIO
-#ifdef SYSV_PTYS
+#if defined(SYSV_PTYS) || defined(UNIX98_PTYS)
{
int on = 1;
ioctl (fd, FIONBIO, &on);
This is called each time Emacs is resumed, also, but does nothing
because input_chain is no longer zero. */
+void
init_vms_input ()
{
int status;
/* Deassigning the input channel is done before exiting. */
+void
stop_vms_input ()
{
return SYS$DASSGN (input_fd);
/* Request reading one character into the keyboard buffer.
This is done as soon as the buffer becomes empty. */
+void
queue_kbd_input ()
{
int status;
/* Ast routine that is called when keyboard input comes in
in accord with the SYS$QIO above. */
+void
kbd_input_ast ()
{
register int c = -1;
struct input_event e;
e.kind = ascii_keystroke;
XSETINT (e.code, c);
- XSETFRAME (e.frame_or_window, selected_frame);
+ e.frame_or_window = selected_frame;
kbd_buffer_store_event (&e);
}
if (input_available_clear_time)
/* Wait until there is something in kbd_buffer. */
+void
wait_for_kbd_input ()
{
extern int have_process_input, process_exited;
/* No timing error: wait for flag to be set. */
set_waiting_for_input (0);
SYS$WFLOR (input_ef, input_eflist);
- clear_waiting_for_input (0);
+ clear_waiting_for_input ();
if (!detect_input_pending ())
/* Check for subprocess input availability */
{
{
update_mode_lines++;
prepare_menu_bars ();
- redisplay_preserve_echo_area ();
+ redisplay_preserve_echo_area (18);
}
}
}
and therefore there is no I/O request queued when we return.
SYS$SETAST is used to avoid a timing error. */
+void
end_kbd_input ()
{
#ifdef ASTDEBUG
/* Wait for either input available or time interval expiry. */
+void
input_wait_timeout (timeval)
int timeval; /* Time to wait, in seconds */
{
SYS$WAITFR (timer_ef); /* Wait for timer expiry only */
}
+void
init_sigio (fd)
int fd;
{
unrequest_sigio ();
}
+void
request_sigio ()
{
croak ("request sigio");
}
+void
unrequest_sigio ()
{
croak ("unrequest sigio");
*
*/
+#if !(defined (__NetBSD__) && defined (__ELF__))
#ifndef HAVE_TEXT_START
char *
start_of_text ()
#endif /* TEXT_START */
}
#endif /* not HAVE_TEXT_START */
+#endif
/*
* Return the address of the start of the data segment prior to
*/
extern char **environ;
- return((char *) &environ);
+ return ((char *) &environ);
#else
extern int data_start;
return ((char *) &data_start);
#endif /* not VMS */
#endif /* not BSD4_1 */
+#ifdef TRY_AGAIN
+#ifndef HAVE_H_ERRNO
+extern int h_errno;
+#endif
+#endif /* TRY_AGAIN */
+
void
init_system_name ()
{
}
}
#endif /* HAVE_SOCKETS */
- /* We used to try using getdomainname as an alternative
- to sysinfo, here, but NIIBE Yutaka <gniibe@etl.go.jp> says that
+ /* We used to try using getdomainname here,
+ but NIIBE Yutaka <gniibe@etl.go.jp> says that
getdomainname gets the NIS/YP domain which often is not the same
as in Internet domain name. */
+#if 0 /* Turned off because sysinfo is not really likely to return the
+ correct Internet domain. */
#if (HAVE_SYSINFO && defined (SI_SRPC_DOMAIN))
if (! index (hostname, '.'))
{
}
}
#endif /* HAVE_SYSINFO && defined (SI_SRPC_DOMAIN) */
+#endif /* 0 */
Vsystem_name = build_string (hostname);
#endif /* HAVE_GETHOSTNAME */
#endif /* VMS */
SELECT_TYPE *rfds, *wfds, *efds;
EMACS_TIME *timeout;
{
- int ravail = 0, old_alarm;
+ int ravail = 0;
SELECT_TYPE orfds;
int timeoutval;
int *local_timeout;
#else
extern int process_tick, update_tick;
#endif
- SIGTYPE (*old_trap) ();
unsigned char buf;
#if defined (HAVE_SELECT) && defined (HAVE_X_WINDOWS)
}
if (*local_timeout == 0 || ravail != 0 || process_tick != update_tick)
break;
- old_alarm = alarm (0);
- old_trap = signal (SIGALRM, select_alarm);
+
+ turn_on_atimers (0);
+ signal (SIGALRM, select_alarm);
select_alarmed = 0;
alarm (SELECT_PAUSE);
+
/* Wait for a SIGALRM (or maybe a SIGTINT) */
while (select_alarmed == 0 && *local_timeout != 0
&& process_tick == update_tick)
pause ();
}
(*local_timeout) -= SELECT_PAUSE;
- /* Reset the old alarm if there was one */
- alarm (0);
- signal (SIGALRM, old_trap);
- if (old_alarm != 0)
- {
- /* Reset or forge an interrupt for the original handler. */
- old_alarm -= SELECT_PAUSE;
- if (old_alarm <= 0)
- kill (getpid (), SIGALRM); /* Fake an alarm with the orig' handler */
- else
- alarm (old_alarm);
- }
+
+ /* Reset the old alarm if there was one. */
+ turn_on_atimers (1);
+
if (*local_timeout == 0) /* Stop on timer being cleared */
break;
}
#define BUFFER_SIZE_FACTOR 1
#endif
+void
read_input_waiting ()
{
struct input_event e;
read_alarm_should_throw = 0;
if (! setjmp (read_alarm_throw))
- nread = (*read_socket_hook) (0, buf, 256, 1, 0);
+ nread = (*read_socket_hook) (0, buf, 256, 1);
else
nread = -1;
/* Scan the chars for C-g and store them in kbd_buffer. */
e.kind = ascii_keystroke;
- XSETFRAME (e.frame_or_window, selected_frame);
+ e.frame_or_window = selected_frame;
e.modifiers = 0;
for (i = 0; i < nread; i++)
{
#endif /* not MSDOS */
\f
#ifdef BSD4_1
-/*
- * Partially emulate 4.2 open call.
- * open is defined as this in 4.1.
- *
- * - added by Michael Bloom @ Citicorp/TTI
- *
- */
-
-int
-sys_open (path, oflag, mode)
- char *path;
- int oflag, mode;
-{
- if (oflag & O_CREAT)
- return creat (path, mode);
- else
- return open (path, oflag);
-}
-
+void
init_sigio (fd)
int fd;
{
ioctl (fd, TIOCLSET, &lmode);
}
+void
reset_sigio ()
{
if (noninteractive)
ioctl (0, TIOCLSET, &lmode);
}
+void
request_sigio ()
{
sigrelse (SIGTINT);
interrupts_deferred = 0;
}
+void
unrequest_sigio ()
{
sighold (SIGTINT);
int sigheld; /* Mask of held signals */
+void
sigholdx (signum)
int signum;
{
sighold (signum);
}
+void
sigisheld (signum)
int signum;
{
sigheld |= sigbit (signum);
}
+void
sigunhold (signum)
int signum;
{
sigrelse (signum);
}
+void
sigfree () /* Free all held signals */
{
int i;
sigheld = 0;
}
+int
sigbit (i)
{
return 1 << (i - 1);
#ifdef POSIX_SIGNALS
-sigset_t old_mask, empty_mask, full_mask, temp_mask;
-static struct sigaction new_action, old_action;
-
-init_signals ()
-{
- sigemptyset (&empty_mask);
- sigfillset (&full_mask);
-}
+sigset_t empty_mask, full_mask;
signal_handler_t
sys_signal (int signal_number, signal_handler_t action)
{
+ struct sigaction new_action, old_action;
sigemptyset (&new_action.sa_mask);
new_action.sa_handler = action;
#ifdef SA_RESTART
}
#endif
-int
-sys_sigpause (sigset_t new_mask)
-{
- /* pause emulating berk sigpause... */
- sigsuspend (&new_mask);
- return (EINTR);
-}
-
/* I'd like to have these guys return pointers to the mask storage in here,
but there'd be trouble if the code was saving multiple masks. I'll be
safe and pass the structure. It normally won't be more than 2 bytes
#endif /* POSIX_SIGNALS */
\f
+#if !defined HAVE_STRSIGNAL && !defined SYS_SIGLIST_DECLARED
+static char *my_sys_siglist[NSIG];
+# ifdef sys_siglist
+# undef sys_siglist
+# endif
+# define sys_siglist my_sys_siglist
+#endif
+
+void
+init_signals ()
+{
+#ifdef POSIX_SIGNALS
+ sigemptyset (&empty_mask);
+ sigfillset (&full_mask);
+#endif
+
+#if !defined HAVE_STRSIGNAL && !defined SYS_SIGLIST_DECLARED
+ if (! initialized)
+ {
+# ifdef SIGABRT
+ sys_siglist[SIGABRT] = "Aborted";
+# endif
+# ifdef SIGAIO
+ sys_siglist[SIGAIO] = "LAN I/O interrupt";
+# endif
+# ifdef SIGALRM
+ sys_siglist[SIGALRM] = "Alarm clock";
+# endif
+# ifdef SIGBUS
+ sys_siglist[SIGBUS] = "Bus error";
+# endif
+# ifdef SIGCLD
+ sys_siglist[SIGCLD] = "Child status changed";
+# endif
+# ifdef SIGCHLD
+ sys_siglist[SIGCHLD] = "Child status changed";
+# endif
+# ifdef SIGCONT
+ sys_siglist[SIGCONT] = "Continued";
+# endif
+# ifdef SIGDANGER
+ sys_siglist[SIGDANGER] = "Swap space dangerously low";
+# endif
+# ifdef SIGDGNOTIFY
+ sys_siglist[SIGDGNOTIFY] = "Notification message in queue";
+# endif
+# ifdef SIGEMT
+ sys_siglist[SIGEMT] = "Emulation trap";
+# endif
+# ifdef SIGFPE
+ sys_siglist[SIGFPE] = "Arithmetic exception";
+# endif
+# ifdef SIGFREEZE
+ sys_siglist[SIGFREEZE] = "SIGFREEZE";
+# endif
+# ifdef SIGGRANT
+ sys_siglist[SIGGRANT] = "Monitor mode granted";
+# endif
+# ifdef SIGHUP
+ sys_siglist[SIGHUP] = "Hangup";
+# endif
+# ifdef SIGILL
+ sys_siglist[SIGILL] = "Illegal instruction";
+# endif
+# ifdef SIGINT
+ sys_siglist[SIGINT] = "Interrupt";
+# endif
+# ifdef SIGIO
+ sys_siglist[SIGIO] = "I/O possible";
+# endif
+# ifdef SIGIOINT
+ sys_siglist[SIGIOINT] = "I/O intervention required";
+# endif
+# ifdef SIGIOT
+ sys_siglist[SIGIOT] = "IOT trap";
+# endif
+# ifdef SIGKILL
+ sys_siglist[SIGKILL] = "Killed";
+# endif
+# ifdef SIGLOST
+ sys_siglist[SIGLOST] = "Resource lost";
+# endif
+# ifdef SIGLWP
+ sys_siglist[SIGLWP] = "SIGLWP";
+# endif
+# ifdef SIGMSG
+ sys_siglist[SIGMSG] = "Monitor mode data available";
+# endif
+# ifdef SIGPHONE
+ sys_siglist[SIGWIND] = "SIGPHONE";
+# endif
+# ifdef SIGPIPE
+ sys_siglist[SIGPIPE] = "Broken pipe";
+# endif
+# ifdef SIGPOLL
+ sys_siglist[SIGPOLL] = "Pollable event occurred";
+# endif
+# ifdef SIGPROF
+ sys_siglist[SIGPROF] = "Profiling timer expired";
+# endif
+# ifdef SIGPTY
+ sys_siglist[SIGPTY] = "PTY I/O interrupt";
+# endif
+# ifdef SIGPWR
+ sys_siglist[SIGPWR] = "Power-fail restart";
+# endif
+# ifdef SIGQUIT
+ sys_siglist[SIGQUIT] = "Quit";
+# endif
+# ifdef SIGRETRACT
+ sys_siglist[SIGRETRACT] = "Need to relinguish monitor mode";
+# endif
+# ifdef SIGSAK
+ sys_siglist[SIGSAK] = "Secure attention";
+# endif
+# ifdef SIGSEGV
+ sys_siglist[SIGSEGV] = "Segmentation violation";
+# endif
+# ifdef SIGSOUND
+ sys_siglist[SIGSOUND] = "Sound completed";
+# endif
+# ifdef SIGSTOP
+ sys_siglist[SIGSTOP] = "Stopped (signal)";
+# endif
+# ifdef SIGSTP
+ sys_siglist[SIGSTP] = "Stopped (user)";
+# endif
+# ifdef SIGSYS
+ sys_siglist[SIGSYS] = "Bad argument to system call";
+# endif
+# ifdef SIGTERM
+ sys_siglist[SIGTERM] = "Terminated";
+# endif
+# ifdef SIGTHAW
+ sys_siglist[SIGTHAW] = "SIGTHAW";
+# endif
+# ifdef SIGTRAP
+ sys_siglist[SIGTRAP] = "Trace/breakpoint trap";
+# endif
+# ifdef SIGTSTP
+ sys_siglist[SIGTSTP] = "Stopped (user)";
+# endif
+# ifdef SIGTTIN
+ sys_siglist[SIGTTIN] = "Stopped (tty input)";
+# endif
+# ifdef SIGTTOU
+ sys_siglist[SIGTTOU] = "Stopped (tty output)";
+# endif
+# ifdef SIGURG
+ sys_siglist[SIGURG] = "Urgent I/O condition";
+# endif
+# ifdef SIGUSR1
+ sys_siglist[SIGUSR1] = "User defined signal 1";
+# endif
+# ifdef SIGUSR2
+ sys_siglist[SIGUSR2] = "User defined signal 2";
+# endif
+# ifdef SIGVTALRM
+ sys_siglist[SIGVTALRM] = "Virtual timer expired";
+# endif
+# ifdef SIGWAITING
+ sys_siglist[SIGWAITING] = "Process's LWPs are blocked";
+# endif
+# ifdef SIGWINCH
+ sys_siglist[SIGWINCH] = "Window size changed";
+# endif
+# ifdef SIGWIND
+ sys_siglist[SIGWIND] = "SIGWIND";
+# endif
+# ifdef SIGXCPU
+ sys_siglist[SIGXCPU] = "CPU time limit exceeded";
+# endif
+# ifdef SIGXFSZ
+ sys_siglist[SIGXFSZ] = "File size limit exceeded";
+# endif
+ }
+#endif /* !defined HAVE_STRSIGNAL && !defined SYS_SIGLIST_DECLARED */
+}
+\f
#ifndef HAVE_RANDOM
#ifdef random
#define HAVE_RANDOM
#endif /* not WINDOWSNT */
#endif /* ! HAVE_STRERROR */
\f
-#ifdef INTERRUPTIBLE_OPEN
-
int
-/* VARARGS 2 */
-sys_open (path, oflag, mode)
+emacs_open (path, oflag, mode)
char *path;
int oflag, mode;
{
register int rtnval;
+
+#ifdef BSD4_1
+ if (oflag & O_CREAT)
+ return creat (path, mode);
+#endif
while ((rtnval = open (path, oflag, mode)) == -1
&& (errno == EINTR));
return (rtnval);
}
-#endif /* INTERRUPTIBLE_OPEN */
-
-#ifdef INTERRUPTIBLE_CLOSE
-
-sys_close (fd)
+int
+emacs_close (fd)
int fd;
{
int did_retry = 0;
return rtnval;
}
-#endif /* INTERRUPTIBLE_CLOSE */
-
-#ifdef INTERRUPTIBLE_IO
-
int
-sys_read (fildes, buf, nbyte)
+emacs_read (fildes, buf, nbyte)
int fildes;
char *buf;
unsigned int nbyte;
}
int
-sys_write (fildes, buf, nbyte)
+emacs_write (fildes, buf, nbyte)
int fildes;
char *buf;
unsigned int nbyte;
}
return (bytes_written);
}
-
-#endif /* INTERRUPTIBLE_IO */
-\f
-#ifndef HAVE_VFORK
-#ifndef WINDOWSNT
-/*
- * Substitute fork for vfork on USG flavors.
- */
-
-VFORK_RETURN_TYPE
-vfork ()
-{
- return (fork ());
-}
-#endif /* not WINDOWSNT */
-#endif /* not HAVE_VFORK */
\f
#ifdef USG
/*
* always negligible. Fred Fish, Unisoft Systems Inc.
*/
-#ifndef HAVE_SYS_SIGLIST
-char *sys_siglist[NSIG + 1] =
-{
-#ifdef AIX
-/* AIX has changed the signals a bit */
- "bogus signal", /* 0 */
- "hangup", /* 1 SIGHUP */
- "interrupt", /* 2 SIGINT */
- "quit", /* 3 SIGQUIT */
- "illegal instruction", /* 4 SIGILL */
- "trace trap", /* 5 SIGTRAP */
- "IOT instruction", /* 6 SIGIOT */
- "crash likely", /* 7 SIGDANGER */
- "floating point exception", /* 8 SIGFPE */
- "kill", /* 9 SIGKILL */
- "bus error", /* 10 SIGBUS */
- "segmentation violation", /* 11 SIGSEGV */
- "bad argument to system call", /* 12 SIGSYS */
- "write on a pipe with no one to read it", /* 13 SIGPIPE */
- "alarm clock", /* 14 SIGALRM */
- "software termination signum", /* 15 SIGTERM */
- "user defined signal 1", /* 16 SIGUSR1 */
- "user defined signal 2", /* 17 SIGUSR2 */
- "death of a child", /* 18 SIGCLD */
- "power-fail restart", /* 19 SIGPWR */
- "bogus signal", /* 20 */
- "bogus signal", /* 21 */
- "bogus signal", /* 22 */
- "bogus signal", /* 23 */
- "bogus signal", /* 24 */
- "LAN I/O interrupt", /* 25 SIGAIO */
- "PTY I/O interrupt", /* 26 SIGPTY */
- "I/O intervention required", /* 27 SIGIOINT */
-#ifdef AIXHFT
- "HFT grant", /* 28 SIGGRANT */
- "HFT retract", /* 29 SIGRETRACT */
- "HFT sound done", /* 30 SIGSOUND */
- "HFT input ready", /* 31 SIGMSG */
-#endif
-#else /* not AIX */
- "bogus signal", /* 0 */
- "hangup", /* 1 SIGHUP */
- "interrupt", /* 2 SIGINT */
- "quit", /* 3 SIGQUIT */
- "illegal instruction", /* 4 SIGILL */
- "trace trap", /* 5 SIGTRAP */
- "IOT instruction", /* 6 SIGIOT */
- "EMT instruction", /* 7 SIGEMT */
- "floating point exception", /* 8 SIGFPE */
- "kill", /* 9 SIGKILL */
- "bus error", /* 10 SIGBUS */
- "segmentation violation", /* 11 SIGSEGV */
- "bad argument to system call", /* 12 SIGSYS */
- "write on a pipe with no one to read it", /* 13 SIGPIPE */
- "alarm clock", /* 14 SIGALRM */
- "software termination signum", /* 15 SIGTERM */
- "user defined signal 1", /* 16 SIGUSR1 */
- "user defined signal 2", /* 17 SIGUSR2 */
- "death of a child", /* 18 SIGCLD */
- "power-fail restart", /* 19 SIGPWR */
-#ifdef sun
- "window size change", /* 20 SIGWINCH */
- "urgent socket condition", /* 21 SIGURG */
- "pollable event occurred", /* 22 SIGPOLL */
- "stop (cannot be caught or ignored)", /* 23 SIGSTOP */
- "user stop requested from tty", /* 24 SIGTSTP */
- "stopped process has been continued", /* 25 SIGCONT */
- "background tty read attempted", /* 26 SIGTTIN */
- "background tty write attempted", /* 27 SIGTTOU */
- "virtual timer expired", /* 28 SIGVTALRM */
- "profiling timer expired", /* 29 SIGPROF */
- "exceeded cpu limit", /* 30 SIGXCPU */
- "exceeded file size limit", /* 31 SIGXFSZ */
- "process's lwps are blocked", /* 32 SIGWAITING */
- "special signal used by thread library", /* 33 SIGLWP */
-#ifdef SIGFREEZE
- "Special Signal Used By CPR", /* 34 SIGFREEZE */
-#endif
-#ifdef SIGTHAW
- "Special Signal Used By CPR", /* 35 SIGTHAW */
-#endif
-#endif /* sun */
-#endif /* not AIX */
- 0
- };
-#endif /* HAVE_SYS_SIGLIST */
-
/*
* Warning, this function may not duplicate 4.2 action properly
* under error conditions.
BLOCK_INPUT; /* getcwd uses malloc */
spath = npath = getcwd ((char *) 0, MAXPATHLEN);
if (spath == 0)
- return spath;
+ {
+ UNBLOCK_INPUT;
+ return spath;
+ }
/* On Altos 3068, getcwd can return @hostname/dir, so discard
up to first slash. Should be harmless on other systems. */
while (*npath && *npath != '/')
{
register int fd, ret;
- sys_close (newd);
+ emacs_close (newd);
#ifdef F_DUPFD
- fd = fcntl (oldd, F_DUPFD, newd);
- if (fd != newd)
- error ("can't dup2 (%i,%i) : %s", oldd, newd, strerror (errno));
+ return fcntl (oldd, F_DUPFD, newd);
#else
fd = dup (old);
if (fd == -1)
if (fd == new)
return new;
ret = dup2 (old,new);
- sys_close (fd);
+ emacs_close (fd);
return ret;
#endif
}
#ifdef HAVE_TIMEVAL
/* ARGSUSED */
+int
gettimeofday (tp, tzp)
struct timeval *tp;
struct timezone *tzp;
tp->tv_usec = 0;
if (tzp != 0)
tzp->tz_minuteswest = -1;
+ return 0;
}
#endif
* This function will go away as soon as all the stubs fixed. (fnf)
*/
+void
croak (badfunc)
char *badfunc;
{
#endif /* USG */
\f
-#ifdef DGUX
-
-char *sys_siglist[NSIG + 1] =
-{
- "null signal", /* 0 SIGNULL */
- "hangup", /* 1 SIGHUP */
- "interrupt", /* 2 SIGINT */
- "quit", /* 3 SIGQUIT */
- "illegal instruction", /* 4 SIGILL */
- "trace trap", /* 5 SIGTRAP */
- "abort termination", /* 6 SIGABRT */
- "SIGEMT", /* 7 SIGEMT */
- "floating point exception", /* 8 SIGFPE */
- "kill", /* 9 SIGKILL */
- "bus error", /* 10 SIGBUS */
- "segmentation violation", /* 11 SIGSEGV */
- "bad argument to system call", /* 12 SIGSYS */
- "write on a pipe with no reader", /* 13 SIGPIPE */
- "alarm clock", /* 14 SIGALRM */
- "software termination signal", /* 15 SIGTERM */
- "user defined signal 1", /* 16 SIGUSR1 */
- "user defined signal 2", /* 17 SIGUSR2 */
- "child stopped or terminated", /* 18 SIGCLD */
- "power-fail restart", /* 19 SIGPWR */
- "window size changed", /* 20 SIGWINCH */
- "undefined", /* 21 */
- "pollable event occurred", /* 22 SIGPOLL */
- "sendable stop signal not from tty", /* 23 SIGSTOP */
- "stop signal from tty", /* 24 SIGSTP */
- "continue a stopped process", /* 25 SIGCONT */
- "attempted background tty read", /* 26 SIGTTIN */
- "attempted background tty write", /* 27 SIGTTOU */
- "undefined", /* 28 */
- "undefined", /* 29 */
- "undefined", /* 30 */
- "undefined", /* 31 */
- "undefined", /* 32 */
- "socket (TCP/IP) urgent data arrival", /* 33 SIGURG */
- "I/O is possible", /* 34 SIGIO */
- "exceeded cpu time limit", /* 35 SIGXCPU */
- "exceeded file size limit", /* 36 SIGXFSZ */
- "virtual time alarm", /* 37 SIGVTALRM */
- "profiling time alarm", /* 38 SIGPROF */
- "undefined", /* 39 */
- "file record locks revoked", /* 40 SIGLOST */
- "undefined", /* 41 */
- "undefined", /* 42 */
- "undefined", /* 43 */
- "undefined", /* 44 */
- "undefined", /* 45 */
- "undefined", /* 46 */
- "undefined", /* 47 */
- "undefined", /* 48 */
- "undefined", /* 49 */
- "undefined", /* 50 */
- "undefined", /* 51 */
- "undefined", /* 52 */
- "undefined", /* 53 */
- "undefined", /* 54 */
- "undefined", /* 55 */
- "undefined", /* 56 */
- "undefined", /* 57 */
- "undefined", /* 58 */
- "undefined", /* 59 */
- "undefined", /* 60 */
- "undefined", /* 61 */
- "undefined", /* 62 */
- "undefined", /* 63 */
- "notification message in mess. queue", /* 64 SIGDGNOTIFY */
- 0
-};
-
-#endif /* DGUX */
-\f
/* Directory routines for systems that don't have them. */
#ifdef SYSV_SYSTEM_DIR
#include <dirent.h>
-#if defined(BROKEN_CLOSEDIR) || !defined(HAVE_CLOSEDIR)
+#if defined (BROKEN_CLOSEDIR) || !defined (HAVE_CLOSEDIR)
int
closedir (dirp)
{
int rtnval;
- rtnval = sys_close (dirp->dd_fd);
+ rtnval = emacs_close (dirp->dd_fd);
/* Some systems (like Solaris) allocate the buffer and the DIR all
in one block. Why in the world are we freeing this ourselves
register int fd; /* file descriptor for read */
struct stat sbuf; /* result of fstat */
- fd = sys_open (filename, 0);
+ fd = emacs_open (filename, O_RDONLY, 0);
if (fd < 0)
return 0;
BLOCK_INPUT;
if (fstat (fd, &sbuf) < 0
|| (sbuf.st_mode & S_IFMT) != S_IFDIR
- || (dirp = (DIR *) malloc (sizeof (DIR))) == 0)
+ || (dirp = (DIR *) xmalloc (sizeof (DIR))) == 0)
{
- sys_close (fd);
+ emacs_close (fd);
UNBLOCK_INPUT;
return 0; /* bad luck today */
}
closedir (dirp)
register DIR *dirp; /* stream from opendir */
{
- sys_close (dirp->dd_fd);
+ emacs_close (dirp->dd_fd);
xfree ((char *) dirp);
}
dirp->dd_loc = dirp->dd_size = 0;
if (dirp->dd_size == 0 /* refill buffer */
- && (dirp->dd_size = sys_read (dirp->dd_fd, dirp->dd_buf, DIRBLKSIZ)) <= 0)
+ && (dirp->dd_size = emacs_read (dirp->dd_fd, dirp->dd_buf, DIRBLKSIZ)) <= 0)
return 0;
#ifndef VMS
*/
status = umask (0); /* Get current umask */
status = umask (status | (0777 & ~dmode)); /* Set for mkdir */
- fd = sys_open("/dev/null", 2);
+ fd = emacs_open ("/dev/null", O_RDWR, 0);
if (fd >= 0)
{
dup2 (fd, 0);
return (-1); /* Errno is set already */
case 0: /* Child process */
- fd = sys_open("/dev/null", 2);
+ fd = emacs_open ("/dev/null", O_RDWR, 0);
if (fd >= 0)
{
dup2 (fd, 0);
/* Called from init_sys_modes, so it happens not very often
but at least each time Emacs is loaded. */
+void
sys_access_reinit ()
{
uic = 0;
return pathname;
}
+int
getppid ()
{
long item_code = JPI$_OWNER;
return (getgid () << 16) | getuid ();
}
+#undef read
int
sys_read (fildes, buf, nbyte)
int fildes;
* Thus we do this stupidity below.
*/
+#undef write
int
sys_write (fildes, buf, nbytes)
int fildes;
#endif
#endif
+int
sys_creat (va_alist)
va_dcl
{
#endif /* creat */
/* fwrite to stdout is S L O W. Speed it up by using fputc...*/
+int
sys_fwrite (ptr, size, num, fp)
register char * ptr;
FILE * fp;
while (tot--)
fputc (*ptr++, fp);
+ return num;
}
/*
/* return total address space available to the current process. This is
the sum of the current p0 size, p1 size and free page table entries
available. */
+int
vlimit ()
{
int item_code;
return free_pages + frep0va + (0x7fffffff - frep1va);
}
+int
define_logical_name (varname, string)
char *varname;
char *string;
return LIB$SET_LOGICAL (&envdsc, &strdsc, &lnmdsc, 0, 0);
}
+int
delete_logical_name (varname)
char *varname;
{
return LIB$DELETE_LOGICAL (&envdsc, &lnmdsc);
}
+int
ulimit ()
-{}
+{
+ return 0;
+}
+int
setpgrp ()
-{}
+{
+ return 0;
+}
+int
execvp ()
{
error ("execvp system call not implemented");
+ return -1;
}
int
return 0;
}
+int
link (file, new)
char * file, * new;
{
return 0;
}
+void
croak (badfunc)
char *badfunc;
{
return rand () - (1 << 30);
}
+void
srandom (seed)
{
srand (seed);
#ifdef AIXHFT
/* Called from init_sys_modes. */
+void
hft_init ()
{
int junk;
there's no way to determine the old mapping, so in reset_sys_modes
we need to assume that the normal map had been present. Of course, this
code also doesn't help if on a terminal emulator which doesn't understand
- HFT VTD's. */
+ HFT VTD's. */
{
struct hfbuf buf;
struct hfkeymap keymap;
line_ins_del_ok = char_ins_del_ok = 0;
}
-/* Reset the rubout key to backspace. */
+/* Reset the rubout key to backspace. */
+void
hft_reset ()
{
struct hfbuf buf;
*b2++ = *b1++;
#endif /* not VMS */
}
-#endif /* (defined (BSTRING) && !defined (bcopy)) || defined (NEED_BCOPY) */
+#endif /* (!defined (BSTRING) && !defined (bcopy)) || defined (NEED_BCOPY) */
#ifndef BSTRING
#ifndef bcmp
}
#endif /* no bcmp */
#endif /* not BSTRING */
+\f
+#ifndef HAVE_STRSIGNAL
+char *
+strsignal (code)
+ int code;
+{
+ char *signame = 0;
+
+ if (0 <= code && code < NSIG)
+ {
+#ifdef VMS
+ signame = sys_errlist[code];
+#else
+ /* Cast to suppress warning if the table has const char *. */
+ signame = (char *) sys_siglist[code];
+#endif
+ }
+
+ return signame;
+}
+#endif /* HAVE_STRSIGNAL */
+
HCoop / bpt / emacs.git / blobdiff