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2002-12-07  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/generic/bits/stdio-lock.h (_IO_lock_trylock): New define.
This commit is contained in:
Ulrich Drepper
2002-12-08 03:13:06 +00:00
parent 6ccb3834eb
commit 09efc3ba12
20 changed files with 101 additions and 28 deletions
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9
nptl/sysdeps/pthread/bits/libc-lock.h
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@ -1,4 +1,4 @@
/* libc-internal interface for mutex locks. LinuxThreads version.
/* libc-internal interface for mutex locks. NPTL version.
Copyright (C) 1996-2001, 2002 Free Software Foundation, Inc.
This file is part of the GNU C Library.
@ -254,8 +254,8 @@ typedef pthread_key_t __libc_key_t;
/* Try to lock the recursive named lock variable. */
#if defined _LIBC && (!defined NOT_IN_libc || defined IS_IN_libpthread)
# define __libc_lock_trylock_recursive(NAME) \
do { \
# define __libc_lock_trylock_recursive(NAME) \
({ \
int result = 0; \
void *self = THREAD_SELF; \
if ((NAME).owner != self) \
@ -270,7 +270,8 @@ typedef pthread_key_t __libc_key_t;
} \
else \
++(NAME).cnt; \
} while (0)
result; \
})
#else
# define __libc_lock_trylock_recursive(NAME) \
__libc_maybe_call (__pthread_mutex_trylock, (&(NAME)), 0)