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authorUlrich Drepper <drepper@redhat.com>2003-06-15 21:22:26 +0000
committerUlrich Drepper <drepper@redhat.com>2003-06-15 21:22:26 +0000
commit7a1147946ecd5fe962e2959afe69c25c7a553672 (patch)
treea6ffd9a6c377d19c531d24e4ac5f9e820a14b72e /sysdeps/generic/pselect.c
parent1fde494e69792603263bdf85819831f00d29cee4 (diff)
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Update.
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.
Diffstat (limited to 'sysdeps/generic/pselect.c')
-rw-r--r--sysdeps/generic/pselect.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/sysdeps/generic/pselect.c b/sysdeps/generic/pselect.c
index e090d6e526..43b371cce7 100644
--- a/sysdeps/generic/pselect.c
+++ b/sysdeps/generic/pselect.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996, 1997, 1998, 2001, 2002 Free Software Foundation, Inc.
+/* Copyright (C) 1996,1997,1998,2001,2002,2003 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
 
@@ -50,6 +50,9 @@ do_pselect (int nfds, fd_set *readfds, fd_set *writefds, fd_set *exceptfds,
   if (sigmask != NULL)
     __sigprocmask (SIG_SETMASK, sigmask, &savemask);
 
+  /* Note the pselect() is a cancellation point.  But since we call
+     select() which itself is a cancellation point we do not have
+     to do anything here.  */
   retval = __select (nfds, readfds, writefds, exceptfds,
 		     timeout != NULL ? &tval : NULL);