1 files changed, 91 insertions, 0 deletions
diff --git a/cpukit/posix/src/mutexget.c b/cpukit/posix/src/mutexget.c
new file mode 100644
index 0000000000..71e46766ba
--- /dev/null
+++ b/cpukit/posix/src/mutexget.c
@@ -0,0 +1,91 @@
+/*
+ *  Convert POSIX Mutex ID to local object pointer
+ *
+ *  COPYRIGHT (c) 1989-2007.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
+ *
+ *  $Id$
+ */
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <errno.h>
+#include <pthread.h>
+
+#include <rtems/system.h>
+#include <rtems/score/coremutex.h>
+#if defined(RTEMS_MULTIPROCESSING)
+#include <rtems/score/mpci.h>
+#endif
+#include <rtems/posix/mutex.h>
+
+
+/*
+ *  _POSIX_Mutex_Get_support
+ *
+ *  NOTE: The support macro makes it possible for both to use exactly
+ *        the same code to check for NULL id pointer and
+ *        PTHREAD_MUTEX_INITIALIZER without adding overhead.
+ */
+
+#define ___POSIX_Mutex_Get_support_error_check( _id, _location ) \
+  do { \
+    if ( !_id ) { \
+      *_location = OBJECTS_ERROR; \
+      return (POSIX_Mutex_Control *) 0; \
+    }  \
+  } while (0)
+
+#define ___POSIX_Mutex_Get_support_auto_initialization( _id, _location ) \
+  do { \
+    int _status; \
+    \
+    if ( *_id == PTHREAD_MUTEX_INITIALIZER ) { \
+      /* \
+       *  Do an "auto-create" here. \
+       */ \
+      \
+      _status = pthread_mutex_init( (pthread_mutex_t *)_id, 0 ); \
+      if ( _status ) { \
+        *_location = OBJECTS_ERROR;  \
+        return (POSIX_Mutex_Control *) 0; \
+      } \
+    } \
+  } while (0)
+
+POSIX_Mutex_Control *_POSIX_Mutex_Get (
+  pthread_mutex_t   *mutex,
+  Objects_Locations *location
+)
+{
+  ___POSIX_Mutex_Get_support_error_check( mutex, location );
+
+  ___POSIX_Mutex_Get_support_auto_initialization( mutex, location );
+
+  return (POSIX_Mutex_Control *)
+    _Objects_Get( &_POSIX_Mutex_Information, (Objects_Id) *mutex, location );
+}
+
+POSIX_Mutex_Control *_POSIX_Mutex_Get_interrupt_disable (
+  pthread_mutex_t   *mutex,
+  Objects_Locations *location,
+  ISR_Level         *level
+)
+{
+  ___POSIX_Mutex_Get_support_error_check( mutex, location );
+
+  ___POSIX_Mutex_Get_support_auto_initialization( mutex, location );
+
+  return (POSIX_Mutex_Control *) _Objects_Get_isr_disable(
+    &_POSIX_Mutex_Information,
+    (Objects_Id) *mutex,
+    location,
+    level
+  );
+}