3 files changed, 44 insertions, 1 deletions
diff --git a/cpukit/score/Makefile.am b/cpukit/score/Makefile.am
index dc51e9a691..f0cd67641c 100644
--- a/cpukit/score/Makefile.am
+++ b/cpukit/score/Makefile.am
@@ -149,7 +149,7 @@ endif
 
 ## CORE_APIMUTEX_C_FILES
 libscore_a_SOURCES += src/apimutex.c \
-    src/apimutexlock.c src/apimutexunlock.c
+    src/apimutexlock.c src/apimutexislocked.c src/apimutexunlock.c
 
 ## CORE_BARRIER_C_FILES
 libscore_a_SOURCES += src/corebarrier.c src/corebarrierrelease.c \
diff --git a/cpukit/score/include/rtems/score/apimutex.h b/cpukit/score/include/rtems/score/apimutex.h
index 5f02e0a1cf..c960679d6b 100644
--- a/cpukit/score/include/rtems/score/apimutex.h
+++ b/cpukit/score/include/rtems/score/apimutex.h
@@ -85,6 +85,8 @@ void _API_Mutex_Lock( API_Mutex_Control *mutex );
  */
 void _API_Mutex_Unlock( API_Mutex_Control *mutex );
 
+bool _API_Mutex_Is_Locked( API_Mutex_Control *mutex );
+
 /** @} */
 
 /**
@@ -118,6 +120,11 @@ static inline void _RTEMS_Unlock_allocator( void )
   _API_Mutex_Unlock( _RTEMS_Allocator_Mutex );
 }
 
+static inline bool _RTEMS_Check_if_allocator_is_locked( void )
+{
+  return _API_Mutex_Is_Locked( _RTEMS_Allocator_Mutex );
+}
+
 SCORE_EXTERN API_Mutex_Control *_Once_Mutex;
 
 static inline void _Once_Lock( void )
diff --git a/cpukit/score/src/apimutexislocked.c b/cpukit/score/src/apimutexislocked.c
new file mode 100644
index 0000000000..804ce4a6ce
--- /dev/null
+++ b/cpukit/score/src/apimutexislocked.c
@@ -0,0 +1,36 @@
+/**
+ * @file
+ *
+ * @brief Check if the specified API mutex is locked.
+ *
+ * @ingroup ScoreAPIMutex
+ */
+
+/*
+ *  COPYRIGHT (c) 1989-2015.
+ *  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.org/license/LICENSE.
+ */
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <rtems/score/apimutex.h>
+#include <rtems/score/coremuteximpl.h>
+#include <rtems/score/threadimpl.h>
+
+bool _API_Mutex_Is_Locked( API_Mutex_Control *the_mutex )
+{
+  bool      is_locked;
+  ISR_Level level;
+
+  _ISR_Disable( level );
+    is_locked = _CORE_mutex_Is_locked( &the_mutex->Mutex );
+  _ISR_Enable( level );
+
+  return is_locked;
+}