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2003-06-15  Ulrich Drepper  <drepper@redhat.com>

	Fix cancellation point handling wrt exception based cleanup.
	* io/Makefile: Compile fcntl.c, poll.c, and lockf.c with exceptions.
	* misc/Makefile: Compile pselect.c, readv.c, writev.c, and usleep.c
	with exceptions.
	* posix/Makefile: Compile pread.c, pread64.c, pwrite.c, pwrite64.c,
	sleep.c, wait.c, waitid.c, and waitpid.c with exceptions.
	* rt/Makefile: Compile aio_suspend.c and clock_nanosleep.c with
	exceptions.
	* signal/Makefile: Compile sigpause.c, sigsuspend.c, sigtimedwait.c,
	sigwait.c, and sigwaitinfo.c with exceptions.
	* stdlib/Makefile: Compile system.c with exceptions.
	* sysvipc/Makefile: Compile msgrcv.c and msgsnd.c with exceptions.
	* termios/Makefile: Compile tcdrain.c with exceptions.
	* sysdeps/generic/lockf.c: Add comment explaining the cancellation
	situation.
	* sysdeps/generic/pselect.c: Likewise.
	* sysdeps/posix/sigpause.c: Likewise.
	* sysdeps/posix/system.c: Likewise.
	* sysdeps/posix/waitid.c: Likewise.
	* sysdeps/unix/sysv/linux/sleep.c: Likewise.
	* sysdeps/unix/sysv/linux/usleep.c: Likewise.
	* sysdeps/unix/sysv/linux/i386/sysdep.h: Major rewrite of
	INTERNAL_SYSCALL to not use push inside asm statement so that
	unwind info is correct around the syscall.
	* sysdeps/unix/clock_nanosleep.c: Add cancellation support.
	* sysdeps/unix/sysv/linux/clock_nanosleep.c: Likewise.
This commit is contained in:
Ulrich Drepper
2003-06-15 21:22:26 +00:00
parent 1fde494e69
commit 7a1147946e
31 changed files with 360 additions and 61 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
sysdeps/unix/sysv/linux/clock_nanosleep.c
View File

@@ -18,7 +18,7 @@
#include <time.h>
#include <sysdep.h>
#include <sysdep-cancel.h>
#include "kernel-features.h"
@@ -32,7 +32,18 @@ clock_nanosleep (clockid_t clock_id, int flags, const struct timespec *req,
INTERNAL_SYSCALL_DECL (err);
int r;
r = INTERNAL_SYSCALL (clock_nanosleep, err, 4, clock_id, flags, req, rem);
if (SINGLE_THREAD_P)
r = INTERNAL_SYSCALL (clock_nanosleep, err, 4, clock_id, flags, req, rem);
else
{
int oldstate = LIBC_CANCEL_ASYNC ();
r = INTERNAL_SYSCALL (clock_nanosleep, err, 4, clock_id, flags, req,
rem);
LIBC_CANCEL_RESET (oldstate);
}
return (INTERNAL_SYSCALL_ERROR_P (r, err)
? INTERNAL_SYSCALL_ERRNO (r, err) : 0);
}
@@ -48,15 +59,20 @@ extern int __libc_missing_posix_timers attribute_hidden;
if (!__libc_missing_posix_timers) \
{ \
INTERNAL_SYSCALL_DECL (err); \
\
int oldstate = LIBC_CANCEL_ASYNC (); \
\
int r = INTERNAL_SYSCALL (clock_nanosleep, err, 4, clock_id, flags, \
req, rem); \
\
LIBC_CANCEL_RESET (oldstate); \
\
if (!INTERNAL_SYSCALL_ERROR_P (r, err)) \
return 0; \
\
if (INTERNAL_SYSCALL_ERRNO (r, err) != ENOSYS) \
return INTERNAL_SYSCALL_ERRNO (r, err); \
\
\
__libc_missing_posix_timers = 1; \
}
# endif