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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

50
sysdeps/unix/sysv/linux/poll.c
View File

@ -20,7 +20,7 @@
#include <errno.h>
#include <sys/poll.h>
#include <sysdep.h>
#include <sysdep-cancel.h>
#include <sys/syscall.h>
#include <bp-checks.h>
@ -36,20 +36,19 @@ static int __emulate_poll (struct pollfd *fds, nfds_t nfds,
int timeout) internal_function;
# endif
/* The real implementation. */
int
__poll (fds, nfds, timeout)
struct pollfd *fds;
nfds_t nfds;
int timeout;
{
# if __ASSUME_POLL_SYSCALL == 0
/* For loser kernels. */
static int
loser_poll (struct pollfd *fds, nfds_t nfds, int timeout)
{
static int must_emulate;
if (!must_emulate)
{
int errno_saved = errno;
int retval = INLINE_SYSCALL (poll, 3, CHECK_N (fds, nfds), nfds, timeout);
int retval = INLINE_SYSCALL (poll, 3, CHECK_N (fds, nfds), nfds,
timeout);
if (retval >= 0 || errno != ENOSYS)
return retval;
@ -59,8 +58,39 @@ __poll (fds, nfds, timeout)
}
return __emulate_poll (fds, nfds, timeout);
}
# endif
/* The real implementation. */
int
__poll (fds, nfds, timeout)
struct pollfd *fds;
nfds_t nfds;
int timeout;
{
# if __ASSUME_POLL_SYSCALL == 0
if (SINGLE_THREAD_P)
return loser_poll (CHECK_N (fds, nfds), nfds, timeout);
int oldtype = LIBC_CANCEL_ASYNC ();
int result = loser_poll (CHECK_N (fds, nfds), nfds, timeout);
LIBC_CANCEL_RESET (oldtype);
return result;
# else
return INLINE_SYSCALL (poll, 3, CHECK_N (fds, nfds), nfds, timeout);
if (SINGLE_THREAD_P)
return INLINE_SYSCALL (poll, 3, CHECK_N (fds, nfds), nfds, timeout);
int oldtype = LIBC_CANCEL_ASYNC ();
int result = INLINE_SYSCALL (poll, 3, CHECK_N (fds, nfds), nfds, timeout);
LIBC_CANCEL_RESET (oldtype);
return result;
# endif
}
libc_hidden_def (__poll)