/* Provide a replacement for the POSIX nanosleep function.
- Copyright (C) 1999, 2000 Free Software Foundation, Inc.
+ Copyright (C) 1999, 2000, 2002, 2004 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
prototype for rpl_nanosleep. (they'd conflict e.g., on alpha-dec-osf3.2) */
#undef nanosleep
+#include <stdbool.h>
#include <stdio.h>
#include <sys/types.h>
#include <signal.h>
#include <errno.h>
-#ifndef errno
-extern int errno;
-#endif
#if HAVE_UNISTD_H
# include <unistd.h>
# define SIGCONT SIGTERM
#endif
-#include "nanosleep.h"
+#include "timespec.h"
-static int suspended;
-int first_call = 1;
+static sig_atomic_t volatile suspended;
/* Handle SIGCONT. */
{
struct timeval tv_delay;
tv_delay.tv_sec = ts_delay->tv_sec;
- tv_delay.tv_usec = ts_delay->tv_nsec / 1000;
+ tv_delay.tv_usec = (ts_delay->tv_nsec + 999) / 1000;
+ if (tv_delay.tv_usec == 1000000)
+ {
+ tv_delay.tv_sec++;
+ tv_delay.tv_usec = 0;
+ }
select (0, (void *) 0, (void *) 0, (void *) 0, &tv_delay);
}
rpl_nanosleep (const struct timespec *requested_delay,
struct timespec *remaining_delay)
{
+ static bool initialized;
+
#ifdef SA_NOCLDSTOP
struct sigaction oldact, newact;
#endif
suspended = 0;
/* set up sig handler */
- if (first_call)
+ if (! initialized)
{
#ifdef SA_NOCLDSTOP
newact.sa_handler = sighandler;
if (signal (SIGCONT, SIG_IGN) != SIG_IGN)
signal (SIGCONT, sighandler);
#endif
- first_call = 0;
+ initialized = true;
}
my_usleep (requested_delay);