[Assorted-commits] SF.net SVN: assorted: [410] cpp-commons/trunk/src/commons/threads.h

[<yan...@us...>]

Revision: 410
          http://assorted.svn.sourceforge.net/assorted/?rev=410&view=rev
Author:   yangzhang
Date:     2008-02-13 16:10:10 -0800 (Wed, 13 Feb 2008)

Log Message:
-----------
added pin_thread

Modified Paths:
--------------
    cpp-commons/trunk/src/commons/threads.h

Modified: cpp-commons/trunk/src/commons/threads.h
===================================================================
--- cpp-commons/trunk/src/commons/threads.h	2008-02-13 18:03:22 UTC (rev 409)
+++ cpp-commons/trunk/src/commons/threads.h	2008-02-14 00:10:10 UTC (rev 410)
@@ -22,6 +22,19 @@
   }
 
   /**
+   * Pin the thread to the given CPU number (as defined for sched_setaffinity).
+   */
+  void
+  pin_thread(int cpu)
+  {
+    pid_t pid = gettid();
+    cpu_set_t cs;
+    CPU_ZERO(&cs);
+    CPU_SET(cpu, &cs);
+    sched_setaffinity(pid, sizeof(cs), &cs);
+  }
+
+  /**
    * Wait for all the given threads to join, discarding their return values.
    */
   inline void


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