libpthread/

2005-05-12  Neal H. Walfield  <neal@gnu.org>

	* include/pthread/pthread.h (pthread_exit): Add noreturn
	attribute.

	* sysdeps/generic/bits/condition.h (__PTHREAD_COND_INITIALIZER):
	Don't create a compound literal.
	* sysdeps/generic/bits/mutex.h (__PTHREAD_MUTEX_INITIALIZER):
	Don't create a compound literal.
	(pthread_mutex_init): Don't assign to *__MUTEX directly.
	Initialize an intermediate local variable and then copy the
	result.
	* sysdeps/generic/bits/rwlock.h (__PTHREAD_RWLOCK_INITIALIZER):
	Don't create a compound literal.
	(pthread_rwlock_init): Don't assign to *__RWLOCK directly.
	Initialize an intermediate local variable and then copy the
	result.
	* sysdeps/i386/bits/spin-lock.h (__SPIN_LOCK_INITIALIZER):
	Don't create a compound literal.

	* pthread/pt-alloc.c (initialize_pthread): Cast
	PTHREAD_MUTEX_INITIALIZER and PTHREAD_COND_INITIALIZER to create a
	compound literal.
	* tests/test-1.c (main): Use pthread_mutex_init, not
	PTHREAD_MUTEX_INIT for mutex initialization

	* sysdeps/generic/pt-barrier-init.c (pthread_barrier_init): Remove
	assert.  Copy ATTR if non-defaults are used.
	* sysdeps/generic/pt-cond-init.c (pthread_cond_init): Include
	<string.h>.  Remove assert.  Copy ATTR if non-defaults are used.
	* sysdeps/generic/pt-mutex-init.c (_pthread_mutex_init): Cast
	PTHREAD_MUTEX_INITIALIZER to create a compound literal.
	* sysdeps/generic/pt-rwlock-init.c: Include <string.h>.
	(_pthread_rwlock_init): Cast __PTHREAD_RWLOCK_INITIALIZER to
	create a compound literal.  Copy ATTR if non-defaults are used.

	* sysdeps/generic/pt-cond-timedwait.c
	(__pthread_cond_timedwait_internal): Check that ABSTIME->TV_NSEC
	is valid.  Don't shadow ERR.  Don't return before cleaning up.
	* sysdeps/generic/pt-mutex-timedlock.c (pthread_mutex_timedlock):
	Move after __pthread_mutex_timedlock_internal.  Check that
	ABSTIME->TV_NSEC is valid.
	* sysdeps/generic/pt-rwlock-timedrdlock.c
	(pthread_rwlock_timedrdlock): Move after.
	__pthread_rwlock_timedrdlock_internal.
	(__pthread_rwlock_timedrdlock_internal): Check that
	ABSTIME->TV_NSEC is valid.
	* sysdeps/generic/pt-rwlock-timedwrlock.c
	(pthread_rwlock_timedwrlock): Move after
	__pthread_rwlock_timedwrlock_internal.
	(__pthread_rwlock_timedwrlock_internal): Check that
	ABSTIME->TV_NSEC is valid.
	* sysdeps/generic/sem-timedwait.c (__sem_timedwait_internal):
	Check that TIMEOUT->TV_NSEC is valid before enqueuing the thread.

	* sysdeps/generic/pt-rwlock-rdlock.c
	(__pthread_rwlock_timedrdlock_internal): Fix declaration.

	* sysdeps/generic/pt-mutex-trylock.c (__pthread_mutex_trylock):
	Don't return EDEADLK.  POSIX does not allow it.

	* sysdeps/mach/pt-timedblock.c (__pthread_timedblock): Calculate
	the relative timeout without overflowing.

	* sysdeps/mach/hurd/i386/pt-setup.c (stack_setup): Cast THREAD.

1 files changed, 16 insertions, 2 deletions

diff --git a/sysdeps/generic/pt-rwlock-init.c b/sysdeps/generic/pt-rwlock-init.c
index 8fe8764..d6c8c1a 100644
--- a/sysdeps/generic/pt-rwlock-init.c
+++ b/sysdeps/generic/pt-rwlock-init.c
@@ -1,5 +1,5 @@
 /* Initialize a rwlock.  Generic version.
-   Copyright (C) 2002 Free Software Foundation, Inc.
+   Copyright (C) 2002, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -18,13 +18,27 @@
    Boston, MA 02111-1307, USA.  */
 
 #include <pthread.h>
+#include <string.h>
 #include <pt-internal.h>
 
 int
 _pthread_rwlock_init (pthread_rwlock_t *rwlock,
 		      const pthread_rwlockattr_t *attr)
 {
-  *rwlock = __PTHREAD_RWLOCK_INITIALIZER;
+  *rwlock = (pthread_rwlock_t) __PTHREAD_RWLOCK_INITIALIZER;
+
+  if (! attr
+      || memcmp (attr, &__pthread_default_rwlockattr, sizeof (*attr) == 0))
+    /* Use the default attributes.  */
+    return 0;
+
+  /* Non-default attributes.  */
+
+  rwlock->__attr = malloc (sizeof *attr);
+  if (! rwlock->__attr)
+    return ENOMEM;
+
+  *rwlock->__attr = *attr;
   return 0;
 }