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Update.

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2002-12-15  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/generic/sysdep-cancel.h: Add dummy definitions for
	SINGLE_THREAD_P, LIBC_CANCEL_ASYNC, and LIBC_CANCEL_RESET.

	* sysdeps/unix/sysv/linux/open64.c: New file.

	* sysdeps/generic/pselect.c: Add support for cancellation handling.
	* sysdeps/posix/open64.c: Likewise.
	* sysdeps/posix/sigpause.c: Likewise.
	* sysdeps/posix/sigwait.c: Likewise.
	* sysdeps/posix/system.c: Likewise.
	* sysdeps/posix/waitid.c: Likewise.
	* sysdeps/unix/sysv/linux/accept.S: Likewise.
	* sysdeps/unix/sysv/linux/connect.S: Likewise.
	* sysdeps/unix/sysv/linux/llseek.c: Likewise.
	* sysdeps/unix/sysv/linux/msgrcv.c: Likewise.
	* sysdeps/unix/sysv/linux/msgsnd.c: Likewise.
	* sysdeps/unix/sysv/linux/poll.c: Likewise.
	* sysdeps/unix/sysv/linux/pread.c: Likewise.
	* sysdeps/unix/sysv/linux/pread64.c: Likewise.
	* sysdeps/unix/sysv/linux/pwrite.c: Likewise.
	* sysdeps/unix/sysv/linux/pwrite64.c: Likewise.
	* sysdeps/unix/sysv/linux/readv.c: Likewise.
	* sysdeps/unix/sysv/linux/recv.S: Likewise.
	* sysdeps/unix/sysv/linux/recvfrom.S: Likewise.
	* sysdeps/unix/sysv/linux/recvmsg.S: Likewise.
	* sysdeps/unix/sysv/linux/send.S: Likewise.
	* sysdeps/unix/sysv/linux/sendmsg.S: Likewise.
	* sysdeps/unix/sysv/linux/sendto.S: Likewise.
	* sysdeps/unix/sysv/linux/sigsuspend.c: Likewise.
	* sysdeps/unix/sysv/linux/sigtimedwait.c: Likewise.
	* sysdeps/unix/sysv/linux/sigwait.c: Likewise.
	* sysdeps/unix/sysv/linux/sigwaitinfo.c: Likewise.
	* sysdeps/unix/sysv/linux/tcdrain.c: Likewise.
	* sysdeps/unix/sysv/linux/wait.c: Likewise.
	* sysdeps/unix/sysv/linux/waitpid.c: Likewise.
	* sysdeps/unix/sysv/linux/writev.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/fcntl.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/socket.S: Likewise.
This commit is contained in:
Ulrich Drepper
2002-12-15 10:26:23 +00:00
parent 2fb6444dbb
commit 6ee8d33456
38 changed files with 730 additions and 149 deletions
Download Patch File Download Diff File Expand all files Collapse all files

45
sysdeps/unix/sysv/linux/sigsuspend.c
View File

@ -20,7 +20,7 @@
#include <signal.h>
#include <unistd.h>
#include <sysdep.h>
#include <sysdep-cancel.h>
#include <sys/syscall.h>
#include <bp-checks.h>
@ -30,20 +30,15 @@ extern int __syscall_sigsuspend (int, unsigned long int, unsigned long int);
extern int __syscall_rt_sigsuspend (const sigset_t *__unbounded, size_t);
#if !__ASSUME_REALTIME_SIGNALS
/* The variable is shared between all wrappers around signal handling
functions which have RT equivalents. The definition is in sigaction.c. */
extern int __libc_missing_rt_sigs;
/* Change the set of blocked signals to SET,
wait until a signal arrives, and restore the set of blocked signals. */
int
__sigsuspend (set)
const sigset_t *set;
static int
do_sigsuspend (const sigset_t *set)
{
#if __ASSUME_REALTIME_SIGNALS
return INLINE_SYSCALL (rt_sigsuspend, 2, CHECK_SIGSET (set), _NSIG / 8);
#else
# ifdef __NR_rt_sigsuspend
/* First try the RT signals. */
if (!__libc_missing_rt_sigs)
@ -62,6 +57,38 @@ __sigsuspend (set)
# endif
return INLINE_SYSCALL (sigsuspend, 3, 0, 0, set->__val[0]);
}
#endif
/* Change the set of blocked signals to SET,
wait until a signal arrives, and restore the set of blocked signals. */
int
__sigsuspend (set)
const sigset_t *set;
{
#if __ASSUME_REALTIME_SIGNALS
if (SINGLE_THREAD_P)
return INLINE_SYSCALL (rt_sigsuspend, 2, CHECK_SIGSET (set), _NSIG / 8);
int oldtype = LIBC_CANCEL_ASYNC ();
int result = INLINE_SYSCALL (rt_sigsuspend, 2, CHECK_SIGSET (set),
_NSIG / 8);
LIBC_CANCEL_RESET (oldtype);
return result;
#else
if (SINGLE_THREAD_P)
return do_sigsuspend (set);
int oldtype = LIBC_CANCEL_ASYNC ();
int result = do_sigsuspend (set);
LIBC_CANCEL_RESET (oldtype);
return result;
#endif
}
libc_hidden_def (__sigsuspend)