/* Interfaces to system-dependent kernel and library entries.
- Copyright (C) 1985-1988, 1993-1995, 1999-2013 Free Software
+ Copyright (C) 1985-1988, 1993-1995, 1999-2014 Free Software
Foundation, Inc.
This file is part of GNU Emacs.
#include <config.h>
-#define SYSTIME_INLINE EXTERN_INLINE
-
#include <execinfo.h>
#include "sysstdio.h"
#ifdef HAVE_PWD_H
/* Return the current working directory. Returns NULL on errors.
Any other returned value must be freed with free. This is used
only when get_current_dir_name is not defined on the system. */
-char*
+char *
get_current_dir_name (void)
{
char *buf;
void
stuff_char (char c)
{
- if (! FRAME_TERMCAP_P (SELECTED_FRAME ()))
+ if (! (FRAMEP (selected_frame)
+ && FRAME_LIVE_P (XFRAME (selected_frame))
+ && FRAME_TERMCAP_P (XFRAME (selected_frame))))
return;
/* Should perhaps error if in batch mode */
#endif /* not DOS_NT */
}
- baud_rate = (emacs_ospeed < sizeof baud_convert / sizeof baud_convert[0]
+ baud_rate = (emacs_ospeed < ARRAYELTS (baud_convert)
? baud_convert[emacs_ospeed] : 9600);
if (baud_rate == 0)
baud_rate = 1200;
/* If successful and status is requested, tell wait_reading_process_output
that it needs to wake up and look around. */
if (pid && status && input_available_clear_time)
- *input_available_clear_time = make_emacs_time (0, 0);
+ *input_available_clear_time = make_timespec (0, 0);
return pid;
}
return get_child_status (child, status, WNOHANG | options, 0);
}
-/*
- * flush any pending output
- * (may flush input as well; it does not matter the way we use it)
- */
-
-void
-flush_pending_output (int channel)
-{
- /* FIXME: maybe this function should be removed */
-}
\f
/* Set up the terminal at the other end of a pseudo-terminal that
we will be controlling an inferior through.
{
#ifdef DOS_NT /* Demacs 1.1.2 91/10/20 Manabu Higashida */
int st;
+#ifdef MSDOS
char oldwd[MAXPATHLEN+1]; /* Fixed length is safe on MSDOS. */
+#else
+ char oldwd[MAX_UTF8_PATH];
+#endif
#endif
pid_t pid;
int status;
struct save_signal saved_handlers[5];
- Lisp_Object dir;
- unsigned char *volatile str_volatile = 0;
- unsigned char *str;
- int len;
+ char *str = SSDATA (encode_current_directory ());
+
+#ifdef DOS_NT
+ pid = 0;
+#else
+ {
+ char *volatile str_volatile = str;
+ pid = vfork ();
+ str = str_volatile;
+ }
+#endif
+
+ if (pid < 0)
+ error ("Can't spawn subshell");
saved_handlers[0].code = SIGINT;
saved_handlers[1].code = SIGQUIT;
saved_handlers[3].code = 0;
#endif
- /* Mentioning current_buffer->buffer would mean including buffer.h,
- which somehow wedges the hp compiler. So instead... */
-
- dir = intern ("default-directory");
- if (NILP (Fboundp (dir)))
- goto xyzzy;
- dir = Fsymbol_value (dir);
- if (!STRINGP (dir))
- goto xyzzy;
-
- dir = expand_and_dir_to_file (Funhandled_file_name_directory (dir), Qnil);
- str_volatile = str = alloca (SCHARS (dir) + 2);
- len = SCHARS (dir);
- memcpy (str, SDATA (dir), len);
- if (str[len - 1] != '/') str[len++] = '/';
- str[len] = 0;
- xyzzy:
-
#ifdef DOS_NT
- pid = 0;
save_signal_handlers (saved_handlers);
-#else
- pid = vfork ();
- if (pid == -1)
- error ("Can't spawn subshell");
#endif
if (pid == 0)
sh = "sh";
/* Use our buffer's default directory for the subshell. */
- str = str_volatile;
- if (str && chdir ((char *) str) != 0)
+ if (chdir (str) != 0)
{
#ifndef DOS_NT
- emacs_perror ((char *) str);
+ emacs_perror (str);
_exit (EXIT_CANCELED);
#endif
}
if (epwd)
{
strcpy (old_pwd, epwd);
- if (str[len - 1] == '/')
- str[len - 1] = '\0';
setenv ("PWD", str, 1);
}
st = system (sh);
}
\f
#ifdef USABLE_SIGIO
-static int old_fcntl_flags[MAXDESC];
+static int old_fcntl_flags[FD_SETSIZE];
#endif
void
#endif
}
+#ifndef DOS_NT
static void
reset_sigio (int fd)
{
fcntl (fd, F_SETFL, old_fcntl_flags[fd]);
#endif
}
+#endif
void
request_sigio (void)
signal (SIGIO, SIG_IGN);
#endif
}
+\f
+#ifndef MSDOS
+/* Block SIGCHLD. */
+void
+block_child_signal (sigset_t *oldset)
+{
+ sigset_t blocked;
+ sigemptyset (&blocked);
+ sigaddset (&blocked, SIGCHLD);
+ sigaddset (&blocked, SIGINT);
+ pthread_sigmask (SIG_BLOCK, &blocked, oldset);
+}
+
+/* Unblock SIGCHLD. */
+
+void
+unblock_child_signal (sigset_t const *oldset)
+{
+ pthread_sigmask (SIG_SETMASK, oldset, 0);
+}
+
+#endif /* !MSDOS */
\f
/* Saving and restoring the process group of Emacs's terminal. */
/* Block and unblock SIGTTOU. */
void
-block_tty_out_signal (void)
+block_tty_out_signal (sigset_t *oldset)
{
#ifdef SIGTTOU
sigset_t blocked;
sigemptyset (&blocked);
sigaddset (&blocked, SIGTTOU);
- pthread_sigmask (SIG_BLOCK, &blocked, 0);
+ pthread_sigmask (SIG_BLOCK, &blocked, oldset);
#endif
}
void
-unblock_tty_out_signal (void)
+unblock_tty_out_signal (sigset_t const *oldset)
{
#ifdef SIGTTOU
- pthread_sigmask (SIG_SETMASK, &empty_mask, 0);
+ pthread_sigmask (SIG_SETMASK, oldset, 0);
#endif
}
tcsetpgrp_without_stopping (int fd, pid_t pgid)
{
#ifdef SIGTTOU
+ sigset_t oldset;
block_input ();
- block_tty_out_signal ();
+ block_tty_out_signal (&oldset);
tcsetpgrp (fd, pgid);
- unblock_tty_out_signal ();
+ unblock_tty_out_signal (&oldset);
unblock_input ();
#endif
}
\f
#ifdef F_SETOWN
-static int old_fcntl_owner[MAXDESC];
+static int old_fcntl_owner[FD_SETSIZE];
#endif /* F_SETOWN */
/* This may also be defined in stdio,
}
/* Set the logical window size associated with descriptor FD
- to HEIGHT and WIDTH. This is used mainly with ptys. */
+ to HEIGHT and WIDTH. This is used mainly with ptys.
+ Return a negative value on failure. */
int
set_window_size (int fd, int height, int width)
size.ws_row = height;
size.ws_col = width;
- if (ioctl (fd, TIOCSWINSZ, &size) == -1)
- return 0; /* error */
- else
- return 1;
+ return ioctl (fd, TIOCSWINSZ, &size);
#else
#ifdef TIOCSSIZE
size.ts_lines = height;
size.ts_cols = width;
- if (ioctl (fd, TIOCGSIZE, &size) == -1)
- return 0;
- else
- return 1;
+ return ioctl (fd, TIOCGSIZE, &size);
#else
return -1;
#endif /* not SunOS-style */
int i;
tty_turn_off_insert (tty_out);
- for (i = curX (tty_out); i < FrameCols (tty_out) - 1; i++)
+ for (i = cursorX (tty_out); i < FrameCols (tty_out) - 1; i++)
{
fputc (' ', tty_out->output);
}
/* When handling a signal, block nonfatal system signals that are caught
by Emacs. This makes race conditions less likely. */
sigaddset (&action->sa_mask, SIGALRM);
+#ifdef SIGCHLD
sigaddset (&action->sa_mask, SIGCHLD);
+#endif
#ifdef SIGDANGER
sigaddset (&action->sa_mask, SIGDANGER);
#endif
#endif
}
- if (! IEEE_FLOATING_POINT)
- sigaddset (&action->sa_mask, SIGFPE);
-
action->sa_handler = handler;
action->sa_flags = emacs_sigaction_flags ();
}
# ifdef SIGBUS
sys_siglist[SIGBUS] = "Bus error";
# endif
+# ifdef SIGCHLD
sys_siglist[SIGCHLD] = "Child status changed";
+# endif
# ifdef SIGCONT
sys_siglist[SIGCONT] = "Continued";
# endif
#ifdef SIGVTALRM
sigaction (SIGVTALRM, &process_fatal_action, 0);
#endif
-#ifdef SIGXCPU
- sigaction (SIGXCPU, &process_fatal_action, 0);
-#endif
#ifdef SIGXFSZ
sigaction (SIGXFSZ, &process_fatal_action, 0);
#endif
void
init_random (void)
{
- EMACS_TIME t = current_emacs_time ();
- uintmax_t v = getpid () ^ EMACS_SECS (t) ^ EMACS_NSECS (t);
+ struct timespec t = current_timespec ();
+ uintmax_t v = getpid () ^ t.tv_sec ^ t.tv_nsec;
seed_random (&v, sizeof v);
}
int
emacs_pipe (int fd[2])
{
+#ifdef MSDOS
+ return pipe (fd);
+#else /* !MSDOS */
int result = pipe2 (fd, O_CLOEXEC);
if (! O_CLOEXEC && result == 0)
{
fcntl (fd[1], F_SETFD, FD_CLOEXEC);
}
return result;
+#endif /* !MSDOS */
}
/* Approximate posix_close and POSIX_CLOSE_RESTART well enough for Emacs.
Return the number of bytes read, which might be less than NBYTE.
On error, set errno and return -1. */
ptrdiff_t
-emacs_read (int fildes, char *buf, ptrdiff_t nbyte)
+emacs_read (int fildes, void *buf, ptrdiff_t nbyte)
{
- register ssize_t rtnval;
+ ssize_t rtnval;
/* There is no need to check against MAX_RW_COUNT, since no caller ever
passes a size that large to emacs_read. */
interrupted or if a partial write occurs. Return the number of
bytes written, setting errno if this is less than NBYTE. */
ptrdiff_t
-emacs_write (int fildes, char const *buf, ptrdiff_t nbyte)
+emacs_write (int fildes, void const *buf, ptrdiff_t nbyte)
{
return emacs_full_write (fildes, buf, nbyte, 0);
}
/* Like emacs_write, but also process pending signals if interrupted. */
ptrdiff_t
-emacs_write_sig (int fildes, char const *buf, ptrdiff_t nbyte)
+emacs_write_sig (int fildes, void const *buf, ptrdiff_t nbyte)
{
return emacs_full_write (fildes, buf, nbyte, 1);
}
Use the least timeval not less than T.
Return an extremal value if the result would overflow. */
struct timeval
-make_timeval (EMACS_TIME t)
+make_timeval (struct timespec t)
{
struct timeval tv;
tv.tv_sec = t.tv_sec;
If FD is nonnegative, then FILE can be NULL. */
int
set_file_times (int fd, const char *filename,
- EMACS_TIME atime, EMACS_TIME mtime)
+ struct timespec atime, struct timespec mtime)
{
struct timespec timespec[2];
timespec[0] = atime;
Lisp_Object childp2 = Qnil;
Lisp_Object tem = Qnil;
struct termios attr;
- int err = -1;
+ int err;
char summary[4] = "???"; /* This usually becomes "8N1". */
childp2 = Fcopy_sequence (p->childp);
#endif /* !defined (WINDOWSNT) */
#if defined GNU_LINUX && defined HAVE_LONG_LONG_INT
-static EMACS_TIME
+static struct timespec
time_from_jiffies (unsigned long long tval, long hz)
{
unsigned long long s = tval / hz;
if (TYPE_MAXIMUM (time_t) < s)
time_overflow ();
- if (LONG_MAX - 1 <= ULLONG_MAX / EMACS_TIME_RESOLUTION
- || frac <= ULLONG_MAX / EMACS_TIME_RESOLUTION)
- ns = frac * EMACS_TIME_RESOLUTION / hz;
+ if (LONG_MAX - 1 <= ULLONG_MAX / TIMESPEC_RESOLUTION
+ || frac <= ULLONG_MAX / TIMESPEC_RESOLUTION)
+ ns = frac * TIMESPEC_RESOLUTION / hz;
else
{
/* This is reachable only in the unlikely case that HZ * HZ
exceeds ULLONG_MAX. It calculates an approximation that is
guaranteed to be in range. */
- long hz_per_ns = (hz / EMACS_TIME_RESOLUTION
- + (hz % EMACS_TIME_RESOLUTION != 0));
+ long hz_per_ns = (hz / TIMESPEC_RESOLUTION
+ + (hz % TIMESPEC_RESOLUTION != 0));
ns = frac / hz_per_ns;
}
- return make_emacs_time (s, ns);
+ return make_timespec (s, ns);
}
static Lisp_Object
ltime_from_jiffies (unsigned long long tval, long hz)
{
- EMACS_TIME t = time_from_jiffies (tval, hz);
+ struct timespec t = time_from_jiffies (tval, hz);
return make_lisp_time (t);
}
-static EMACS_TIME
+static struct timespec
get_up_time (void)
{
FILE *fup;
- EMACS_TIME up = make_emacs_time (0, 0);
+ struct timespec up = make_timespec (0, 0);
block_input ();
fup = emacs_fopen ("/proc/uptime", "r");
if (TYPE_MAXIMUM (time_t) < upsec)
{
upsec = TYPE_MAXIMUM (time_t);
- upfrac = EMACS_TIME_RESOLUTION - 1;
+ upfrac = TIMESPEC_RESOLUTION - 1;
}
else
{
int upfraclen = upfrac_end - upfrac_start;
- for (; upfraclen < LOG10_EMACS_TIME_RESOLUTION; upfraclen++)
+ for (; upfraclen < LOG10_TIMESPEC_RESOLUTION; upfraclen++)
upfrac *= 10;
- for (; LOG10_EMACS_TIME_RESOLUTION < upfraclen; upfraclen--)
+ for (; LOG10_TIMESPEC_RESOLUTION < upfraclen; upfraclen--)
upfrac /= 10;
- upfrac = min (upfrac, EMACS_TIME_RESOLUTION - 1);
+ upfrac = min (upfrac, TIMESPEC_RESOLUTION - 1);
}
- up = make_emacs_time (upsec, upfrac);
+ up = make_timespec (upsec, upfrac);
}
fclose (fup);
}
return build_string (name);
}
-static unsigned long
+static uintmax_t
procfs_get_total_memory (void)
{
FILE *fmem;
- unsigned long retval = 2 * 1024 * 1024; /* default: 2GB */
+ uintmax_t retval = 2 * 1024 * 1024; /* default: 2 GiB */
+ int c;
block_input ();
fmem = emacs_fopen ("/proc/meminfo", "r");
if (fmem)
{
- unsigned long entry_value;
- char entry_name[20]; /* the longest I saw is 13+1 */
+ uintmax_t entry_value;
+ bool done;
+
+ do
+ switch (fscanf (fmem, "MemTotal: %"SCNuMAX, &entry_value))
+ {
+ case 1:
+ retval = entry_value;
+ done = 1;
+ break;
+
+ case 0:
+ while ((c = getc (fmem)) != EOF && c != '\n')
+ continue;
+ done = c == EOF;
+ break;
+
+ default:
+ done = 1;
+ break;
+ }
+ while (!done);
- while (!feof (fmem) && !ferror (fmem))
- {
- if (fscanf (fmem, "%s %lu kB\n", entry_name, &entry_value) >= 2
- && strcmp (entry_name, "MemTotal:") == 0)
- {
- retval = entry_value;
- break;
- }
- }
fclose (fmem);
}
unblock_input ();
unsigned long long u_time, s_time, cutime, cstime, start;
long priority, niceness, rss;
unsigned long minflt, majflt, cminflt, cmajflt, vsize;
- EMACS_TIME tnow, tstart, tboot, telapsed, us_time;
+ struct timespec tnow, tstart, tboot, telapsed, us_time;
double pcpu, pmem;
Lisp_Object attrs = Qnil;
Lisp_Object cmd_str, decoded_cmd;
if (gr)
attrs = Fcons (Fcons (Qgroup, build_string (gr->gr_name)), attrs);
- count = SPECPDL_INDEX ();
+ dynwind_begin ();
strcpy (fn, procfn);
procfn_end = fn + strlen (fn);
strcpy (procfn_end, "/stat");
attrs = Fcons (Fcons (Qnice, make_number (niceness)), attrs);
attrs = Fcons (Fcons (Qthcount, make_fixnum_or_float (thcount)),
attrs);
- tnow = current_emacs_time ();
+ tnow = current_timespec ();
telapsed = get_up_time ();
- tboot = sub_emacs_time (tnow, telapsed);
+ tboot = timespec_sub (tnow, telapsed);
tstart = time_from_jiffies (start, clocks_per_sec);
- tstart = add_emacs_time (tboot, tstart);
+ tstart = timespec_add (tboot, tstart);
attrs = Fcons (Fcons (Qstart, make_lisp_time (tstart)), attrs);
attrs = Fcons (Fcons (Qvsize, make_fixnum_or_float (vsize / 1024)),
attrs);
attrs = Fcons (Fcons (Qrss, make_fixnum_or_float (4 * rss)), attrs);
- telapsed = sub_emacs_time (tnow, tstart);
+ telapsed = timespec_sub (tnow, tstart);
attrs = Fcons (Fcons (Qetime, make_lisp_time (telapsed)), attrs);
us_time = time_from_jiffies (u_time + s_time, clocks_per_sec);
- pcpu = (EMACS_TIME_TO_DOUBLE (us_time)
- / EMACS_TIME_TO_DOUBLE (telapsed));
+ pcpu = timespectod (us_time) / timespectod (telapsed);
if (pcpu > 1.0)
pcpu = 1.0;
attrs = Fcons (Fcons (Qpcpu, make_float (100 * pcpu)), attrs);
attrs = Fcons (Fcons (Qpmem, make_float (pmem)), attrs);
}
}
- unbind_to (count, Qnil);
+ dynwind_end ();
/* args */
strcpy (procfn_end, "/cmdline");
if (fd >= 0)
{
ptrdiff_t readsize, nread_incr;
+ dynwind_begin ();
record_unwind_protect_int (close_file_unwind, fd);
- record_unwind_protect_nothing ();
nread = cmdline_size = 0;
do
{
cmdline = xpalloc (cmdline, &cmdline_size, 2, STRING_BYTES_BOUND, 1);
- set_unwind_protect_ptr (count + 1, xfree, cmdline);
/* Leave room even if every byte needs escaping below. */
readsize = (cmdline_size >> 1) - nread;
nread = cmdsize + 2;
cmdline_size = nread + 1;
q = cmdline = xrealloc (cmdline, cmdline_size);
- set_unwind_protect_ptr (count + 1, xfree, cmdline);
sprintf (cmdline, "[%.*s]", cmdsize, cmd);
}
/* Command line is encoded in locale-coding-system; decode it. */
cmd_str = make_unibyte_string (q, nread);
decoded_cmd = code_convert_string_norecord (cmd_str,
Vlocale_coding_system, 0);
- unbind_to (count, Qnil);
+ dynwind_end ();
attrs = Fcons (Fcons (Qargs, decoded_cmd), attrs);
}
if (gr)
attrs = Fcons (Fcons (Qgroup, build_string (gr->gr_name)), attrs);
- count = SPECPDL_INDEX ();
+ dynwind_begin ();
strcpy (fn, procfn);
procfn_end = fn + strlen (fn);
strcpy (procfn_end, "/psinfo");
attrs);
decoded_cmd = (code_convert_string_norecord
- (make_unibyte_string (pinfo.pr_fname,
- strlen (pinfo.pr_fname)),
+ (build_unibyte_string (pinfo.pr_fname),
Vlocale_coding_system, 0));
attrs = Fcons (Fcons (Qcomm, decoded_cmd), attrs);
decoded_cmd = (code_convert_string_norecord
- (make_unibyte_string (pinfo.pr_psargs,
- strlen (pinfo.pr_psargs)),
+ (build_unibyte_string (pinfo.pr_psargs),
Vlocale_coding_system, 0));
attrs = Fcons (Fcons (Qargs, decoded_cmd), attrs);
}
- unbind_to (count, Qnil);
+ dynwind_end ();
UNGCPRO;
return attrs;
}
#elif defined __FreeBSD__
-static EMACS_TIME
-timeval_to_EMACS_TIME (struct timeval t)
+static struct timespec
+timeval_to_timespec (struct timeval t)
{
- return make_emacs_time (t.tv_sec, t.tv_usec * 1000);
+ return make_timespec (t.tv_sec, t.tv_usec * 1000);
}
static Lisp_Object
make_lisp_timeval (struct timeval t)
{
- return make_lisp_time (timeval_to_EMACS_TIME (t));
+ return make_lisp_time (timeval_to_timespec (t));
}
Lisp_Object
{
int proc_id;
int pagesize = getpagesize ();
- int npages;
+ unsigned long npages;
int fscale;
struct passwd *pw;
struct group *gr;
char *ttyname;
size_t len;
char args[MAXPATHLEN];
- EMACS_TIME t, now;
+ struct timespec t, now;
int mib[4] = {CTL_KERN, KERN_PROC, KERN_PROC_PID};
struct kinfo_proc proc;
if (gr)
attrs = Fcons (Fcons (Qgroup, build_string (gr->gr_name)), attrs);
- decoded_comm = code_convert_string_norecord
- (make_unibyte_string (proc.ki_comm, strlen (proc.ki_comm)),
- Vlocale_coding_system, 0);
+ decoded_comm = (code_convert_string_norecord
+ (build_unibyte_string (proc.ki_comm),
+ Vlocale_coding_system, 0));
attrs = Fcons (Fcons (Qcomm, decoded_comm), attrs);
{
attrs);
attrs = Fcons (Fcons (Qstime, make_lisp_timeval (proc.ki_rusage.ru_stime)),
attrs);
- t = add_emacs_time (timeval_to_EMACS_TIME (proc.ki_rusage.ru_utime),
- timeval_to_EMACS_TIME (proc.ki_rusage.ru_stime));
+ t = timespec_add (timeval_to_timespec (proc.ki_rusage.ru_utime),
+ timeval_to_timespec (proc.ki_rusage.ru_stime));
attrs = Fcons (Fcons (Qtime, make_lisp_time (t)), attrs);
attrs = Fcons (Fcons (Qcutime,
attrs = Fcons (Fcons (Qcstime,
make_lisp_timeval (proc.ki_rusage_ch.ru_utime)),
attrs);
- t = add_emacs_time (timeval_to_EMACS_TIME (proc.ki_rusage_ch.ru_utime),
- timeval_to_EMACS_TIME (proc.ki_rusage_ch.ru_stime));
+ t = timespec_add (timeval_to_timespec (proc.ki_rusage_ch.ru_utime),
+ timeval_to_timespec (proc.ki_rusage_ch.ru_stime));
attrs = Fcons (Fcons (Qctime, make_lisp_time (t)), attrs);
attrs = Fcons (Fcons (Qthcount, make_fixnum_or_float (proc.ki_numthreads)),
attrs = Fcons (Fcons (Qrss, make_number (proc.ki_rssize * pagesize >> 10)),
attrs);
- now = current_emacs_time ();
- t = sub_emacs_time (now, timeval_to_EMACS_TIME (proc.ki_start));
+ now = current_timespec ();
+ t = timespec_sub (now, timeval_to_timespec (proc.ki_start));
attrs = Fcons (Fcons (Qetime, make_lisp_time (t)), attrs);
len = sizeof fscale;
HCoop / bpt / emacs.git / blobdiff