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authorJennifer Averett <jennifer.averett@oarcorp.com>2014-02-10 12:30:39 -0600
committerJennifer Averett <jennifer.averett@oarcorp.com>2014-03-07 09:10:01 -0600
commit29cacfdbf3a7b90ecb513a591f225e68f14ad340 (patch)
tree4e53d1371fe32f5cda0f7dc2098c674baf9f8edd
parent039a189de179915de94bbabaa37d93c663dcaefc (diff)
downloadrtems-29cacfdbf3a7b90ecb513a591f225e68f14ad340.tar.bz2
rtems: Add Classic API get and set affinity methods.
Add the following methods: + rtems_task_get_affinity + rtems_task_set_affinity
-rw-r--r--cpukit/rtems/Makefile.am7
-rw-r--r--cpukit/rtems/include/rtems/rtems/tasks.h45
-rw-r--r--cpukit/rtems/src/taskgetaffinity.c63
-rw-r--r--cpukit/rtems/src/tasksetaffinity.c62
4 files changed, 177 insertions, 0 deletions
diff --git a/cpukit/rtems/Makefile.am b/cpukit/rtems/Makefile.am
index ea461deabc..f89a896f2d 100644
--- a/cpukit/rtems/Makefile.am
+++ b/cpukit/rtems/Makefile.am
@@ -269,5 +269,12 @@ librtems_a_SOURCES += src/signalmp.c
librtems_a_SOURCES += src/taskmp.c
endif
+## SMP Files
+if HAS_SMP
+librtems_a_SOURCES += src/tasksetaffinity.c
+librtems_a_SOURCES += src/taskgetaffinity.c
+endif
+
+
include $(srcdir)/preinstall.am
include $(top_srcdir)/automake/local.am
diff --git a/cpukit/rtems/include/rtems/rtems/tasks.h b/cpukit/rtems/include/rtems/rtems/tasks.h
index 2030632380..f17d51b7e5 100644
--- a/cpukit/rtems/include/rtems/rtems/tasks.h
+++ b/cpukit/rtems/include/rtems/rtems/tasks.h
@@ -490,6 +490,51 @@ rtems_status_code rtems_task_variable_delete(
void **ptr
);
+#if defined(__RTEMS_HAVE_SYS_CPUSET_H__) && defined(RTEMS_SMP)
+/**
+ * @brief RTEMS Get Task Affinity
+ *
+ * This directive returns the cpuset for the
+ * given task. The cpuset size must be the
+ * same size as the task affinity set size.
+ *
+ * @param[in] id is the thread to extract
+ * @param[in] cpusetsize is the size of the cpuset
+ * @param[out] cpuset is the tasks affinity cpuset
+ *
+ * @retval RTEMS_SUCCESSFUL if successful or error code if unsuccessful
+ * @retval RTEMS_INVALID_ADDRESS if cpuset is NULL
+ * @retval RTEMS_INVALID_NUMBER if cpusetsize is incorrect
+ * @retval RTEMS_INVALID_ID if id not valid
+ */
+rtems_status_code rtems_task_get_affinity(
+ rtems_id id,
+ size_t cpusetsize,
+ cpu_set_t *cpuset
+);
+
+/**
+ * @brief RTEMS Set Task Affinity
+ *
+ * This directive sets the given tasks
+ * affinity cpuset.
+ *
+ * @param[in] id is the thread to extract
+ * @param[in] cpusetsize is the size of the cpuset
+ * @param[in] cpuset is affinity set to assign to the task
+ *
+ * @retval RTEMS_SUCCESSFUL if successful or error code if unsuccessful
+ * @retval RTEMS_INVALID_ADDRESS if cpuset is NULL
+ * @retval RTEMS_INVALID_NUMBER if cpuset or cpusetsize is incorrect
+ * @retval RTEMS_INVALID_ID if id not valid
+ */
+rtems_status_code rtems_task_set_affinity(
+ rtems_id id,
+ size_t cpusetsize,
+ cpu_set_t *cpuset
+);
+#endif
+
/**
* @brief RTEMS Get Self Task Id
*
diff --git a/cpukit/rtems/src/taskgetaffinity.c b/cpukit/rtems/src/taskgetaffinity.c
new file mode 100644
index 0000000000..9f625e334c
--- /dev/null
+++ b/cpukit/rtems/src/taskgetaffinity.c
@@ -0,0 +1,63 @@
+/**
+ * @file
+ *
+ * @brief RTEMS Task Get Affinity
+ * @ingroup ClassicTasks Tasks
+ */
+
+/*
+ * COPYRIGHT (c) 2014.
+ * 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.
+ */
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#if defined(__RTEMS_HAVE_SYS_CPUSET_H__)
+
+#include <rtems/rtems/tasks.h>
+#include <rtems/score/threadimpl.h>
+#include <rtems/score/cpusetimpl.h>
+
+rtems_status_code rtems_task_get_affinity(
+ rtems_id id,
+ size_t cpusetsize,
+ cpu_set_t *cpuset
+)
+{
+ Thread_Control *the_thread;
+ Objects_Locations location;
+ rtems_status_code status = RTEMS_SUCCESSFUL;
+
+ if ( !cpuset )
+ return RTEMS_INVALID_ADDRESS;
+
+ the_thread = _Thread_Get( id, &location );
+
+ switch ( location ) {
+
+ case OBJECTS_LOCAL:
+ if ( cpusetsize != the_thread->affinity.setsize ) {
+ status = RTEMS_INVALID_NUMBER;
+ } else {
+ CPU_COPY( cpuset, the_thread->affinity.set );
+ }
+ _Objects_Put( &the_thread->Object );
+ return status;
+
+#if defined(RTEMS_MULTIPROCESSING)
+ case OBJECTS_REMOTE:
+#endif
+
+ case OBJECTS_ERROR:
+ break;
+ }
+
+ return RTEMS_INVALID_ID;
+}
+#endif
diff --git a/cpukit/rtems/src/tasksetaffinity.c b/cpukit/rtems/src/tasksetaffinity.c
new file mode 100644
index 0000000000..cecb2686a4
--- /dev/null
+++ b/cpukit/rtems/src/tasksetaffinity.c
@@ -0,0 +1,62 @@
+/**
+ * @file
+ *
+ * @brief RTEMS Task Set Affinity
+ * @ingroup ClassicTasks Tasks
+ */
+
+/*
+ * COPYRIGHT (c) 2014.
+ * 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.
+ */
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#if defined(__RTEMS_HAVE_SYS_CPUSET_H__)
+
+#include <rtems/rtems/tasks.h>
+#include <rtems/score/threadimpl.h>
+#include <rtems/score/cpusetimpl.h>
+
+rtems_status_code rtems_task_set_affinity(
+ rtems_id id,
+ size_t cpusetsize,
+ cpu_set_t *cpuset
+)
+{
+ Thread_Control *the_thread;
+ Objects_Locations location;
+ int error;
+
+ if ( !cpuset )
+ return RTEMS_INVALID_ADDRESS;
+
+ error = _CPU_set_Is_valid( cpuset, cpusetsize );
+ if ( error != 0 )
+ return RTEMS_INVALID_NUMBER;
+
+ the_thread = _Thread_Get( id, &location );
+ switch ( location ) {
+
+ case OBJECTS_LOCAL:
+ CPU_COPY( the_thread->affinity.set, cpuset );
+ _Objects_Put( &the_thread->Object );
+ return RTEMS_SUCCESSFUL;
+
+#if defined(RTEMS_MULTIPROCESSING)
+ case OBJECTS_REMOTE:
+#endif
+
+ case OBJECTS_ERROR:
+ break;
+ }
+
+ return RTEMS_INVALID_ID;
+}
+#endif