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authorNeal H. Walfield <neal@gnu.org>2008-06-01 20:25:36 +0000
committerThomas Schwinge <tschwinge@gnu.org>2009-04-07 23:16:53 +0200
commit4a4fd9acc62e401c034717d0b5772c96291d24a2 (patch)
tree54dde3f5dc7405a69e1f7c5943e92ea0ee59a185 /sysdeps/generic/pt-mutex-init.c
parent61f38c39b247dd0e9fe980690db56c34ca1384ec (diff)
2008-06-01 Neal H. Walfield <neal@gnu.org>
* include/pthread/pthread.h (PTHREAD_MUTEX_RECURSIVE_INITIALIZER_NP): New definition. * sysdeps/generic/bits/mutex.h (__PTHREAD_MUTEX_RECURSIVE_INITIALIZER): New definition. * sysdeps/generic/bits/mutex-attr.h (__pthread_recursive_mutexattr): New definition. * sysdeps/generic/pt-mutexattr.c (__pthread_recursive_mutexattr): New declaration. * sysdeps/generic/pt-mutex-init.c (_pthread_mutex_init): If ATTR is &__PTHREAD_RECURSIVE_MUTEXATTR, don't allocate a copy, just save in MUTEX->ATTR. * sysdeps/generic/pt-mutex-destroy.c (_pthread_mutex_destroy): If MUTEX->ATTR is &__PTHREAD_RECURSIVE_MUTEXATTR, don't free it.
Diffstat (limited to 'sysdeps/generic/pt-mutex-init.c')
-rw-r--r--sysdeps/generic/pt-mutex-init.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/sysdeps/generic/pt-mutex-init.c b/sysdeps/generic/pt-mutex-init.c
index da1781bf..83f5b185 100644
--- a/sysdeps/generic/pt-mutex-init.c
+++ b/sysdeps/generic/pt-mutex-init.c
@@ -1,5 +1,5 @@
/* Initialize a mutex. Generic version.
- Copyright (C) 2000, 2002, 2005 Free Software Foundation, Inc.
+ Copyright (C) 2000, 2002, 2005, 2008 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
@@ -32,10 +32,15 @@ _pthread_mutex_init (pthread_mutex_t *mutex,
if (! attr
|| memcmp (attr, &__pthread_default_mutexattr, sizeof (*attr) == 0))
- /* Use the default attributes. */
+ /* The default attributes. */
return 0;
- /* Non-default attributes. */
+ if (attr == &__pthread_recursive_mutexattr)
+ /* Non-default but known attributes. */
+ {
+ mutex->attr = attr;
+ return 0;
+ }
mutex->attr = malloc (sizeof *attr);
if (! mutex->attr)