summaryrefslogtreecommitdiffstats
path: root/cpukit/score/src/corespinlock.c
diff options
context:
space:
mode:
authorJoel Sherrill <joel.sherrill@OARcorp.com>2006-09-25 13:36:58 +0000
committerJoel Sherrill <joel.sherrill@OARcorp.com>2006-09-25 13:36:58 +0000
commit9c191eea63fd6c5511c01186297722e594220032 (patch)
treed5ad903d3005a0c24511851d829e0a00b2c1c53c /cpukit/score/src/corespinlock.c
parent2006-09-14 Joel Sherrill <joel@OARcorp.com> (diff)
downloadrtems-9c191eea63fd6c5511c01186297722e594220032.tar.bz2
* score/Makefile.am, score/preinstall.am,
score/include/rtems/score/coresem.h, score/include/rtems/score/object.h, score/include/rtems/score/states.h, score/inline/rtems/score/coresem.inl: Add SuperCore Barriers, SpinLocks and a partial implementation of RWLocks. * score/include/rtems/score/corebarrier.h, score/include/rtems/score/corerwlock.h, score/include/rtems/score/corespinlock.h, score/inline/rtems/score/corebarrier.inl, score/inline/rtems/score/corerwlock.inl, score/inline/rtems/score/corespinlock.inl, score/macros/rtems/score/corebarrier.inl, score/macros/rtems/score/corerwlock.inl, score/macros/rtems/score/corespinlock.inl, score/src/corebarrier.c, score/src/corebarrierrelease.c, score/src/corebarrierwait.c, score/src/corerwlock.c, score/src/corerwlockobtainread.c, score/src/corerwlockobtainwrite.c, score/src/corerwlockrelease.c, score/src/corespinlock.c, score/src/corespinlockrelease.c, score/src/corespinlockwait.c: New files.
Diffstat (limited to 'cpukit/score/src/corespinlock.c')
-rw-r--r--cpukit/score/src/corespinlock.c56
1 files changed, 56 insertions, 0 deletions
diff --git a/cpukit/score/src/corespinlock.c b/cpukit/score/src/corespinlock.c
new file mode 100644
index 0000000000..ff16057021
--- /dev/null
+++ b/cpukit/score/src/corespinlock.c
@@ -0,0 +1,56 @@
+/*
+ * SuperCore Spinlock Handler
+ *
+ * DESCRIPTION:
+ *
+ * This package is part of the implementation of the SuperCore Spinlock Handler.
+ *
+ * COPYRIGHT (c) 1989-2006.
+ * 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 <rtems/system.h>
+#include <rtems/score/corespinlock.h>
+#include <rtems/score/states.h>
+#include <rtems/score/thread.h>
+#include <rtems/score/threadq.h>
+#if defined(RTEMS_MULTIPROCESSING)
+#include <rtems/score/mpci.h>
+#endif
+
+/*PAGE
+ *
+ * _CORE_spinlock_Initialize
+ *
+ * This function initialize a spinlock and sets the initial value based
+ * on the given count.
+ *
+ * Input parameters:
+ * the_spinlock - the spinlock control block to initialize
+ * the_spinlock_attributes - the attributes specified at create time
+ *
+ * Output parameters: NONE
+ */
+
+void _CORE_spinlock_Initialize(
+ CORE_spinlock_Control *the_spinlock,
+ CORE_spinlock_Attributes *the_spinlock_attributes
+)
+{
+
+ the_spinlock->Attributes = *the_spinlock_attributes;
+
+ the_spinlock->lock = 0;
+ the_spinlock->users = 0;
+ the_spinlock->holder = 0;
+}