add test for robust

test/test_pthread.cpp

@@ -0,0 +1,33 @@
+
+#include <thread>
+
+#include "test.h"
+
+#ifdef __linux__
+#include <pthread.h>
+#include <time.h>
+
+TEST(PThread, Robust) {
+    pthread_mutexattr_t ma;
+    pthread_mutexattr_init(&ma);
+    pthread_mutexattr_setrobust(&ma, PTHREAD_MUTEX_ROBUST);
+    pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
+    pthread_mutex_init(&mutex, &ma);
+
+    std::thread{[&mutex] {
+        pthread_mutex_lock(&mutex);
+        // pthread_mutex_unlock(&mutex);
+    }}.join();
+
+    struct timespec tout;
+    clock_gettime(CLOCK_REALTIME, &tout);
+    struct tm *tmp = localtime(&tout.tv_sec);
+    tout.tv_sec += 1;   /* 1 seconds from now */
+    int r = pthread_mutex_timedlock(&mutex, &tout);
+    EXPECT_EQ(r, EOWNERDEAD);
+
+    pthread_mutex_consistent(&mutex);
+    pthread_mutex_unlock(&mutex);
+    pthread_mutex_destroy(&mutex);
+}
+#endif // __linux__