2005-11-09 Andreas Krebbel <krebbel1@de.ibm.com>

[pf3gnuchains/gcc-fork.git] / gcc / gthr-dce.h

diff --git a/gcc/gthr-dce.h b/gcc/gthr-dce.h
index 563754e..f74a1b1 100644 (file)
--- a/gcc/gthr-dce.h
+++ b/gcc/gthr-dce.h
@@ -1,6 +1,6 @@
-
+/* Threads compatibility routines for libgcc2 and libobjc.  */
 /* Compile this one with gcc.  */
-/* Copyright (C) 1997, 1999, 2000, 2001 Free Software Foundation, Inc.
+/* Copyright (C) 1997, 1999, 2000, 2001, 2004 Free Software Foundation, Inc.
 
 This file is part of GCC.
 
@@ -16,8 +16,8 @@ for more details.
 
 You should have received a copy of the GNU General Public License
 along with GCC; see the file COPYING.  If not, write to the Free
-Software Foundation, 59 Temple Place - Suite 330, Boston, MA
-02111-1307, USA.  */
+Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301, USA.  */
 
 /* As a special exception, if you link this library with other files,
    some of which are compiled with GCC, to produce an executable,
@@ -52,10 +52,12 @@ Software Foundation, 59 Temple Place - Suite 330, Boston, MA
 typedef pthread_key_t __gthread_key_t;
 typedef pthread_once_t __gthread_once_t;
 typedef pthread_mutex_t __gthread_mutex_t;
+typedef pthread_mutex_t __gthread_recursive_mutex_t;
 
 #define __GTHREAD_ONCE_INIT pthread_once_init
 
 #define __GTHREAD_MUTEX_INIT_FUNCTION __gthread_mutex_init_function
+#define __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION __gthread_recursive_mutex_init_function
 
 #define __GTHREAD_MUTEX_INIT_DEFAULT pthread_once_init
 
@@ -72,6 +74,9 @@ typedef pthread_mutex_t __gthread_mutex_t;
 #pragma weak pthread_mutex_lock
 #pragma weak pthread_mutex_trylock
 #pragma weak pthread_mutex_unlock
+#pragma weak pthread_mutexattr_create
+#pragma weak pthread_mutexattr_setkind_np
+#pragma weak pthread_mutexattr_delete
 
 #ifdef _LIBOBJC
 /* Objective-C.  */
@@ -119,7 +124,7 @@ static inline int
 __gthread_objc_init_thread_system (void)
 {
   if (__gthread_active_p ())
-    /* Initialize the thread storage key */
+    /* Initialize the thread storage key.  */
     return pthread_keycreate (&_objc_thread_storage, NULL);
   else
     return -1;
@@ -481,6 +486,43 @@ __gthread_mutex_unlock (__gthread_mutex_t *mutex)
     return 0;
 }
 
+static inline int
+__gthread_recursive_mutex_init_function (__gthread_recursive_mutex_t *mutex)
+{
+  if (__gthread_active_p ())
+    {
+      pthread_mutexattr_t attr;
+      int r;
+
+      r = pthread_mutexattr_create (&attr);
+      if (!r)
+       r = pthread_mutexattr_setkind_np (&attr, MUTEX_RECURSIVE_NP);
+      if (!r)
+       r = pthread_mutex_init (mutex, attr);
+      if (!r)
+       r = pthread_mutexattr_delete (&attr);
+      return r;
+    }
+}
+
+static inline int
+__gthread_recursive_mutex_lock (__gthread_recursive_mutex_t *mutex)
+{
+  return __gthread_mutex_lock (mutex);
+}
+
+static inline int
+__gthread_recursive_mutex_trylock (__gthread_recursive_mutex_t *mutex)
+{
+  return __gthread_mutex_trylock (mutex);
+}
+
+static inline int
+__gthread_recursive_mutex_unlock (__gthread_recursive_mutex_t *mutex)
+{
+  return __gthread_mutex_unlock (mutex);
+}
+
 #endif /* _LIBOBJC */
 
 #undef UNUSED