X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=mcs-lock%2Fmcs-lock.cc;h=ec0cc5df9d55c904d3a5cf9a677f42488371a7bb;hb=a757e79cb775f910bae08e1522029639d8a1ea91;hp=135085f95b9d26bb43e40815a04e36f4452980f6;hpb=43509b349e5d7e4d7044ec462cebe11535d9dd54;p=model-checker-benchmarks.git

diff --git a/mcs-lock/mcs-lock.cc b/mcs-lock/mcs-lock.cc
index 135085f..ec0cc5d 100644
--- a/mcs-lock/mcs-lock.cc
+++ b/mcs-lock/mcs-lock.cc
@@ -3,12 +3,41 @@
 
 #include "mcs-lock.h"
 
+/* For data race instrumentation */
+#include "librace.h"
+
 struct mcs_mutex *mutex;
+static uint32_t shared;
+
+void threadA(void *arg)
+{
+	mcs_mutex::guard g(mutex);
+	printf("store: %d\n", 17);
+	store_32(&shared, 17);
+	mutex->unlock(&g);
+	mutex->lock(&g);
+	printf("load: %u\n", load_32(&shared));
+}
+
+void threadB(void *arg)
+{
+	mcs_mutex::guard g(mutex);
+	printf("load: %u\n", load_32(&shared));
+	mutex->unlock(&g);
+	mutex->lock(&g);
+	printf("store: %d\n", 17);
+	store_32(&shared, 17);
+}
 
 int user_main(int argc, char **argv)
 {
-	mcs_mutex::guard *g = new mcs_mutex::guard(mutex);
-	mutex->lock(g);
-	mutex->unlock(g);
+	thrd_t A, B;
+
+	mutex = new mcs_mutex();
+
+	thrd_create(&A, &threadA, NULL);
+	thrd_create(&B, &threadB, NULL);
+	thrd_join(A);
+	thrd_join(B);
 	return 0;
 }