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Diffstat (limited to 'winsup/testsuite/winsup.api/pthread/condvar3.c')
-rw-r--r--winsup/testsuite/winsup.api/pthread/condvar3.c115
1 files changed, 115 insertions, 0 deletions
diff --git a/winsup/testsuite/winsup.api/pthread/condvar3.c b/winsup/testsuite/winsup.api/pthread/condvar3.c
new file mode 100644
index 000000000..249e260aa
--- /dev/null
+++ b/winsup/testsuite/winsup.api/pthread/condvar3.c
@@ -0,0 +1,115 @@
+/*
+ * File: condvar3.c
+ *
+ * Test Synopsis:
+ * - Test basic function of a CV
+ *
+ * Test Method (Validation or Falsification):
+ * - Validation
+ *
+ * Requirements Tested:
+ * -
+ *
+ * Features Tested:
+ * -
+ *
+ * Cases Tested:
+ * -
+ *
+ * Description:
+ * - The primary thread takes the lock before creating any threads.
+ * The secondary thread blocks on the lock allowing the primary
+ * thread to enter the cv wait state which releases the lock.
+ * The secondary thread then takes the lock and signals the waiting
+ * primary thread.
+ *
+ * Environment:
+ * -
+ *
+ * Input:
+ * - None.
+ *
+ * Output:
+ * - File name, Line number, and failed expression on failure.
+ * - No output on success.
+ *
+ * Assumptions:
+ * -
+ *
+ * Pass Criteria:
+ * - pthread_cond_timedwait returns 0.
+ * - Process returns zero exit status.
+ *
+ * Fail Criteria:
+ * - pthread_cond_timedwait returns ETIMEDOUT.
+ * - Process returns non-zero exit status.
+ */
+
+#include "test.h"
+#include <sys/timeb.h>
+
+static pthread_cond_t cv;
+static pthread_mutex_t mutex;
+static int shared = 0;
+
+enum {
+ NUMTHREADS = 2 /* Including the primary thread. */
+};
+
+void *
+mythread(void * arg)
+{
+ int result = 0;
+
+ assert(pthread_mutex_lock(&mutex) == 0);
+
+ shared++;
+
+ assert(pthread_mutex_unlock(&mutex) == 0);
+
+ if ((result = pthread_cond_signal(&cv)) != 0)
+ {
+ printf("Error = %s\n", error_string[result]);
+ }
+ assert(result == 0);
+
+ return (void *) 0;
+}
+
+int
+main()
+{
+ pthread_t t[NUMTHREADS];
+ struct timespec abstime = { 0, 0 };
+ struct timeb currSysTime;
+ const DWORD NANOSEC_PER_MILLISEC = 1000000;
+
+ assert((t[0] = pthread_self()) != NULL);
+
+ assert(pthread_cond_init(&cv, NULL) == 0);
+
+ assert(pthread_mutex_init(&mutex, NULL) == 0);
+
+ assert(pthread_mutex_lock(&mutex) == 0);
+
+ /* get current system time */
+ ftime(&currSysTime);
+
+ abstime.tv_sec = currSysTime.time;
+ abstime.tv_nsec = NANOSEC_PER_MILLISEC * currSysTime.millitm;
+
+ assert(pthread_create(&t[1], NULL, mythread, (void *) 1) == 0);
+
+ abstime.tv_sec += 5;
+
+ while (! (shared > 0))
+ assert(pthread_cond_timedwait(&cv, &mutex, &abstime) == 0);
+
+ assert(shared > 0);
+
+ assert(pthread_mutex_unlock(&mutex) == 0);
+
+ assert(pthread_cond_destroy(&cv) == 0);
+
+ return 0;
+}