/* Provide a replacement for the POSIX nanosleep function.
- Copyright (C) 1999, 2000, 2002, 2004, 2005, 2006, 2007, 2008, 2009
- Free Software Foundation, Inc.
+ Copyright (C) 1999-2000, 2002, 2004-2010 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
#include <unistd.h>
-#undef nanosleep
enum { BILLION = 1000 * 1000 * 1000 };
#if HAVE_BUG_BIG_NANOSLEEP
int
-rpl_nanosleep (const struct timespec *requested_delay,
- struct timespec *remaining_delay)
+nanosleep (const struct timespec *requested_delay,
+ struct timespec *remaining_delay)
+#undef nanosleep
{
/* nanosleep mishandles large sleeps due to internal overflow
problems. The worst known case of this is cygwin 1.5.x, which
{
time_t t1 = tv_delay.tv_sec + 1;
if (t1 < tv_delay.tv_sec)
- tv_delay.tv_usec = 1000000 - 1; /* close enough */
+ tv_delay.tv_usec = 1000000 - 1; /* close enough */
else
- {
- tv_delay.tv_sec = t1;
- tv_delay.tv_usec = 0;
- }
+ {
+ tv_delay.tv_sec = t1;
+ tv_delay.tv_usec = 0;
+ }
}
select (0, NULL, NULL, NULL, &tv_delay);
}
*REMAINING_DELAY part isn't implemented yet. */
int
-rpl_nanosleep (const struct timespec *requested_delay,
- struct timespec *remaining_delay)
+nanosleep (const struct timespec *requested_delay,
+ struct timespec *remaining_delay)
{
static bool initialized;
+ if (requested_delay->tv_nsec < 0 || BILLION <= requested_delay->tv_nsec)
+ {
+ errno = EINVAL;
+ return -1;
+ }
+
/* set up sig handler */
if (! initialized)
{
sigaction (SIGCONT, NULL, &oldact);
if (get_handler (&oldact) != SIG_IGN)
- {
- struct sigaction newact;
-
- newact.sa_handler = sighandler;
- sigemptyset (&newact.sa_mask);
- newact.sa_flags = 0;
- sigaction (SIGCONT, &newact, NULL);
- }
+ {
+ struct sigaction newact;
+
+ newact.sa_handler = sighandler;
+ sigemptyset (&newact.sa_mask);
+ newact.sa_flags = 0;
+ sigaction (SIGCONT, &newact, NULL);
+ }
initialized = true;
}
{
/* Calculate time remaining. */
/* FIXME: the code in sleep doesn't use this, so there's no
- rush to implement it. */
+ rush to implement it. */
errno = EINTR;
}