Revision: 54934
http://brlcad.svn.sourceforge.net/brlcad/?rev=54934&view=rev
Author: brlcad
Date: 2013-03-28 05:32:36 +0000 (Thu, 28 Mar 2013)
Log Message:
-----------
provide an initial implementation of two functions to get/set the current cpu
number in thread-local-storage (TLS). this preliminarily uses boost threads,
but will probably change to minimize the complexity where we have support for
intrinsic compiler TLS.
Modified Paths:
--------------
brlcad/trunk/src/libbu/parallel.h
Added Paths:
-----------
brlcad/trunk/src/libbu/thread.cpp
Modified: brlcad/trunk/src/libbu/parallel.h
===================================================================
--- brlcad/trunk/src/libbu/parallel.h 2013-03-28 05:27:47 UTC (rev 54933)
+++ brlcad/trunk/src/libbu/parallel.h 2013-03-28 05:32:36 UTC (rev 54934)
@@ -32,6 +32,8 @@
*/
extern int parallel_set_affinity(void);
+extern void thread_set_cpu(int cpu);
+extern int thread_get_cpu(void);
/*
Added: brlcad/trunk/src/libbu/thread.cpp
===================================================================
--- brlcad/trunk/src/libbu/thread.cpp (rev 0)
+++ brlcad/trunk/src/libbu/thread.cpp 2013-03-28 05:32:36 UTC (rev 54934)
@@ -0,0 +1,53 @@
+/* T H R E A D . H
+ * BRL-CAD
+ *
+ * Copyright (c) 2013 United States Government as represented by
+ * the U.S. Army Research Laboratory.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * version 2.1 as published by the Free Software Foundation.
+ *
+ * This library is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this file; see the file named COPYING for more
+ * information.
+ */
+
+#include "common.h"
+
+#include <boost/thread/tss.hpp>
+
+static boost::thread_specific_ptr<int> thread_cpu;
+
+extern "C" {
+
+void
+thread_set_cpu(int cpu)
+{
+ thread_cpu.reset(new int(cpu));
+}
+
+
+int
+thread_get_cpu(void)
+{
+ return *thread_cpu.get();
+}
+
+
+} /* extern "C" */
+
+/*
+ * Local Variables:
+ * mode: C
+ * tab-width: 8
+ * indent-tabs-mode: t
+ * c-file-style: "stroustrup"
+ * End:
+ * ex: shiftwidth=4 tabstop=8
+ */
Property changes on: brlcad/trunk/src/libbu/thread.cpp
___________________________________________________________________
Added: svn:mime-type
+ text/plain
Added: svn:eol-style
+ native
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