From b41f74438672dd682bc01ae818cb3da654f22c1e Mon Sep 17 00:00:00 2001
From: marha <marha@users.sourceforge.net>
Date: Wed, 13 Feb 2013 10:41:10 +0100
Subject: Updated to latest CVS version of pthreads

---
 pthreads/tests/affinity3.c | 100 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 100 insertions(+)
 create mode 100755 pthreads/tests/affinity3.c

(limited to 'pthreads/tests/affinity3.c')

diff --git a/pthreads/tests/affinity3.c b/pthreads/tests/affinity3.c
new file mode 100755
index 000000000..065dd21a4
--- /dev/null
+++ b/pthreads/tests/affinity3.c
@@ -0,0 +1,100 @@
+/*
+ * affinity3.c
+ *
+ *
+ * --------------------------------------------------------------------------
+ *
+ *      Pthreads-win32 - POSIX Threads Library for Win32
+ *      Copyright(C) 1998 John E. Bossom
+ *      Copyright(C) 1999,2012 Pthreads-win32 contributors
+ *
+ *      Homepage1: http://sourceware.org/pthreads-win32/
+ *      Homepage2: http://sourceforge.net/projects/pthreads4w/
+ *
+ *      The current list of contributors is contained
+ *      in the file CONTRIBUTORS included with the source
+ *      code distribution. The list can also be seen at the
+ *      following World Wide Web location:
+ *      http://sources.redhat.com/pthreads-win32/contributors.html
+ *
+ *      This library is free software; you can redistribute it and/or
+ *      modify it under the terms of the GNU Lesser General Public
+ *      License as published by the Free Software Foundation; either
+ *      version 2 of the License, or (at your option) any later version.
+ *
+ *      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 library in the file COPYING.LIB;
+ *      if not, write to the Free Software Foundation, Inc.,
+ *      59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
+ *
+ * --------------------------------------------------------------------------
+ *
+ * Have the thread switch CPUs.
+ *
+ */
+
+#include "test.h"
+
+int
+main()
+{
+  int result;
+  unsigned int cpu;
+  cpu_set_t newmask;
+  cpu_set_t processCpus;
+  cpu_set_t mask;
+  cpu_set_t switchmask;
+  cpu_set_t flipmask;
+  pthread_t self = pthread_self();
+
+  CPU_ZERO(&mask);
+  CPU_ZERO(&switchmask);
+  CPU_ZERO(&flipmask);
+
+  assert(pthread_getaffinity_np(self, sizeof(cpu_set_t), &processCpus) == 0);
+  printf("This thread has a starting affinity with %d CPUs\n", CPU_COUNT(&processCpus));
+  assert(!CPU_EQUAL(&mask, &processCpus));
+
+  for (cpu = 0; cpu < sizeof(cpu_set_t)*8; cpu += 2)
+    {
+	  CPU_SET(cpu, &switchmask);				/* 0b01010101010101010101010101010101 */
+    }
+  for (cpu = 0; cpu < sizeof(cpu_set_t)*8; cpu++)
+    {
+	  CPU_SET(cpu, &flipmask);					/* 0b11111111111111111111111111111111 */
+    }
+
+  result = pthread_setaffinity_np(self, sizeof(cpu_set_t), &processCpus);
+  if (result != 0)
+	{
+	  assert(result != ESRCH);
+	  assert(result != EFAULT);
+	  assert(result != EPERM);
+	  assert(result != EINVAL);
+	  assert(result != EAGAIN);
+	  assert(result == ENOSYS);
+	  assert(CPU_COUNT(&mask) == 1);
+	}
+  else
+	{
+	  if (CPU_COUNT(&mask) > 1)
+		{
+		  CPU_AND(&newmask, &processCpus, &switchmask); /* Remove every other CPU */
+		  assert(pthread_setaffinity_np(self, sizeof(cpu_set_t), &newmask) == 0);
+		  assert(pthread_getaffinity_np(self, sizeof(cpu_set_t), &mask) == 0);
+		  assert(CPU_EQUAL(&mask, &newmask));
+		  CPU_XOR(&newmask, &mask, &flipmask);  /* Switch to all alternative CPUs */
+		  assert(!CPU_EQUAL(&mask, &newmask));
+		  assert(pthread_setaffinity_np(self, sizeof(cpu_set_t), &newmask) == 0);
+		  assert(pthread_getaffinity_np(self, sizeof(cpu_set_t), &mask) == 0);
+		  assert(CPU_EQUAL(&mask, &newmask));
+		}
+	}
+
+  return 0;
+}
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