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Diffstat (limited to 'winsup/testsuite/winsup.api/pthread/condvar3_1.c')
-rw-r--r--winsup/testsuite/winsup.api/pthread/condvar3_1.c148
1 files changed, 148 insertions, 0 deletions
diff --git a/winsup/testsuite/winsup.api/pthread/condvar3_1.c b/winsup/testsuite/winsup.api/pthread/condvar3_1.c
new file mode 100644
index 000000000..06f8bf704
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+++ b/winsup/testsuite/winsup.api/pthread/condvar3_1.c
@@ -0,0 +1,148 @@
+/*
+ * File: condvar3_1.c
+ *
+ * Test Synopsis:
+ * - Test timeout of multiple waits on a CV with some signaled.
+ *
+ * Test Method (Validation or Falsification):
+ * - Validation
+ *
+ * Requirements Tested:
+ * -
+ *
+ * Features Tested:
+ * -
+ *
+ * Cases Tested:
+ * -
+ *
+ * Description:
+ * - Because some CVs are never signaled, we expect their waits to time out.
+ * Some are signaled, the rest time out. Pthread_cond_destroy() will fail
+ * unless all are accounted for, either signaled or timedout.
+ *
+ * Environment:
+ * -
+ *
+ * Input:
+ * - None.
+ *
+ * Output:
+ * - File name, Line number, and failed expression on failure.
+ * - No output on success.
+ *
+ * Assumptions:
+ * -
+ *
+ * Pass Criteria:
+ * - pthread_cond_timedwait returns ETIMEDOUT.
+ * - Process returns zero exit status.
+ *
+ * Fail Criteria:
+ * - pthread_cond_timedwait does not return ETIMEDOUT.
+ * - Process returns non-zero exit status.
+ */
+
+#include "test.h"
+#include <sys/timeb.h>
+
+static pthread_cond_t cv;
+static pthread_cond_t cv1;
+static pthread_mutex_t mutex;
+static struct timespec abstime = { 0, 0 };
+static int timedout = 0;
+static int signaled = 0;
+static int awoken = 0;
+static int waiting = 0;
+
+enum {
+ NUMTHREADS = 60
+};
+
+void *
+mythread(void * arg)
+{
+ int result;
+
+ assert(pthread_mutex_lock(&mutex) == 0);
+
+ if ( ++waiting == NUMTHREADS)
+ assert(pthread_cond_signal(&cv1) == 0);
+
+ result = pthread_cond_timedwait(&cv, &mutex, &abstime);
+ if (result == ETIMEDOUT)
+ {
+ printf ("thread N %d has timed out\n", (int)arg);
+ timedout++;
+ }
+ else
+ {
+ printf ("thread N %d has waken up\n", (int)arg);
+ awoken++;
+ }
+
+ assert(pthread_mutex_unlock(&mutex) == 0);
+
+ return arg;
+}
+
+int
+main()
+{
+ int i;
+ pthread_t t[NUMTHREADS + 1];
+ int result = 0;
+ struct timeb currSysTime;
+ const DWORD NANOSEC_PER_MILLISEC = 1000000;
+
+ assert(pthread_cond_init(&cv, NULL) == 0);
+ assert(pthread_cond_init(&cv1, NULL) == 0);
+
+ assert(pthread_mutex_init(&mutex, NULL) == 0);
+
+ /* get current system time */
+ ftime(&currSysTime);
+
+ abstime.tv_sec = currSysTime.time;
+ abstime.tv_nsec = NANOSEC_PER_MILLISEC * currSysTime.millitm;
+
+ abstime.tv_sec += 5;
+
+ assert(pthread_mutex_lock(&mutex) == 0);
+
+ for (i = 1; i <= NUMTHREADS; i++)
+ {
+ assert(pthread_create(&t[i], NULL, mythread, (void *) i) == 0);
+ }
+
+ do {
+ assert(pthread_cond_wait(&cv1,&mutex) == 0);
+ } while ( NUMTHREADS != waiting );
+
+ assert(pthread_mutex_unlock(&mutex) == 0);
+
+ for (i = NUMTHREADS/3; i <= 2*NUMTHREADS/3; i++)
+ {
+ printf ("sending signal N %d\n", signaled + 1);
+ assert(pthread_cond_signal(&cv) == 0);
+ signaled++;
+ }
+
+ for (i = 1; i <= NUMTHREADS; i++)
+ {
+ assert(pthread_join(t[i], (void **) &result) == 0);
+ assert(result == i);
+ }
+
+ fprintf(stderr, "awk = %d\n", awoken);
+ fprintf(stderr, "sig = %d\n", signaled);
+ fprintf(stderr, "tot = %d\n", timedout);
+
+ assert(signaled == awoken);
+ assert(timedout == NUMTHREADS - signaled);
+
+ result = pthread_cond_destroy(&cv);
+ assert(result == 0);
+
+ return 0;
+}