[rtems commit] score: Add _Assert_Thread_dispatching_repressed()

[Sebastian Huber]

Module:    rtems
Branch:    master
Commit:    4088377398a4e003a01a786f556d14a3a5f2294d
Changeset: http://git.rtems.org/rtems/commit/?id=4088377398a4e003a01a786f556d14a3a5f2294d

Author:    Sebastian Huber <sebastian.huber at embedded-brains.de>
Date:      Tue Jun 18 14:57:19 2013 +0200

score: Add _Assert_Thread_dispatching_repressed()

---

 cpukit/score/Makefile.am                           |    1 +
 cpukit/score/include/rtems/score/assert.h          |   12 ++++++++
 .../score/src/assertthreaddispatchingrepressed.c   |   28 ++++++++++++++++++++
 3 files changed, 41 insertions(+), 0 deletions(-)

diff --git a/cpukit/score/Makefile.am b/cpukit/score/Makefile.am
index b623732..67d4b5e 100644
--- a/cpukit/score/Makefile.am
+++ b/cpukit/score/Makefile.am
@@ -316,6 +316,7 @@ libscore_a_SOURCES += src/apiext.c src/chain.c src/chainappend.c \
     src/chainextract.c src/chainget.c src/chaininsert.c \
     src/chainappendempty.c src/chainprependempty.c src/chaingetempty.c \
     src/chainnodecount.c \
+    src/assertthreaddispatchingrepressed.c \
     src/interr.c src/isr.c src/wkspace.c src/wkstringduplicate.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 205515d..174676e 100644
--- a/cpukit/score/include/rtems/score/assert.h
+++ b/cpukit/score/include/rtems/score/assert.h
@@ -38,6 +38,18 @@ extern "C" {
   #define _Assert( _e ) ( ( void ) 0 )
 #endif
 
+/**
+ * @brief Asserts that thread dispatching is repressed.
+ *
+ * Thread dispatching can be repressed via _Thread_Disable_dispatch() or
+ * _ISR_Disable().
+ */
+#if defined( RTEMS_DEBUG )
+  void _Assert_Thread_dispatching_repressed( void );
+#else
+  #define _Assert_Thread_dispatching_repressed() ( ( void ) 0 )
+#endif
+
 #ifdef __cplusplus
 }
 #endif /* __cplusplus */
diff --git a/cpukit/score/src/assertthreaddispatchingrepressed.c b/cpukit/score/src/assertthreaddispatchingrepressed.c
new file mode 100644
index 0000000..44907f6
--- /dev/null
+++ b/cpukit/score/src/assertthreaddispatchingrepressed.c
@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2013 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/isr.h>
+#include <rtems/score/threaddispatch.h>
+
+#if defined( RTEMS_DEBUG )
+  void _Assert_Thread_dispatching_repressed( void )
+  {
+    _Assert( !_Thread_Dispatch_is_enabled() || _ISR_Get_level() != 0 );
+  }
+#endif