[rtems commit] score: Add _Debug_Is_owner_of_allocator()

[Sebastian Huber]

Module:    rtems
Branch:    master
Commit:    72f4b98be71a3de63362211485f77ebda935ae14
Changeset: http://git.rtems.org/rtems/commit/?id=72f4b98be71a3de63362211485f77ebda935ae14

Author:    Sebastian Huber <sebastian.huber at embedded-brains.de>
Date:      Tue Mar 18 12:11:37 2014 +0100

score: Add _Debug_Is_owner_of_allocator()

---

 cpukit/score/Makefile.am                   |    1 +
 cpukit/score/include/rtems/score/assert.h  |    8 ++++++
 cpukit/score/src/debugisownerofallocator.c |   37 ++++++++++++++++++++++++++++
 3 files changed, 46 insertions(+), 0 deletions(-)

diff --git a/cpukit/score/Makefile.am b/cpukit/score/Makefile.am
index 7c87d1a..6c4293a 100644
--- a/cpukit/score/Makefile.am
+++ b/cpukit/score/Makefile.am
@@ -333,6 +333,7 @@ libscore_a_SOURCES += src/apiext.c src/chain.c src/chainappend.c \
     src/chainnodecount.c \
     src/debugisthreaddispatchingallowed.c \
     src/interr.c src/isr.c src/wkspace.c src/wkstringduplicate.c
+libscore_a_SOURCES += src/debugisownerofallocator.c
 libscore_a_SOURCES += src/profilingisrentryexit.c
 
 EXTRA_DIST = src/Unlimited.txt
diff --git a/cpukit/score/include/rtems/score/assert.h b/cpukit/score/include/rtems/score/assert.h
index 707222b..be04d87 100644
--- a/cpukit/score/include/rtems/score/assert.h
+++ b/cpukit/score/include/rtems/score/assert.h
@@ -59,6 +59,14 @@ extern "C" {
   #endif
 #endif
 
+/**
+ * @brief Returns true if the current thread of execution owns the allocator
+ * mutex.
+ */
+#if defined( RTEMS_DEBUG )
+  bool _Debug_Is_owner_of_allocator( void );
+#endif
+
 #ifdef __cplusplus
 }
 #endif /* __cplusplus */
diff --git a/cpukit/score/src/debugisownerofallocator.c b/cpukit/score/src/debugisownerofallocator.c
new file mode 100644
index 0000000..a0ce7fe
--- /dev/null
+++ b/cpukit/score/src/debugisownerofallocator.c
@@ -0,0 +1,37 @@
+/*
+ * Copyright (c) 2014 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Dornierstr. 4
+ *  82178 Puchheim
+ *  Germany
+ *  <rtems at embedded-brains.de>
+ *
+ * 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.
+ */
+
+#if HAVE_CONFIG_H
+  #include "config.h"
+#endif
+
+#include <rtems/score/assert.h>
+#include <rtems/score/apimutex.h>
+#include <rtems/score/thread.h>
+
+#if defined( RTEMS_DEBUG )
+  bool _Debug_Is_owner_of_allocator( void )
+  {
+    API_Mutex_Control *mutex = _RTEMS_Allocator_Mutex;
+    bool owner;
+
+    if ( mutex != NULL ) {
+      owner = mutex->Mutex.holder == _Thread_Get_executing();
+    } else {
+      owner = false;
+    }
+
+    return owner;
+  }
+#endif