regression test for robust mutext in detached thread

diff --git a/src/regression/pthread-robust-detach.c b/src/regression/pthread-robust-detach.c
new file mode 100644 (file)
index 0000000..dbf75a2
--- /dev/null
+++ b/src/regression/pthread-robust-detach.c
@@ -0,0 +1,37 @@
+// commit 12e1e324683a1d381b7f15dd36c99b37dd44d940 2015-04-10
+// robust mutex should work with detached threads too
+#include <pthread.h>
+#include <string.h>
+#include <errno.h>
+#include "test.h"
+
+#define TX(r,f,x) ( ((r)=(f))==x || (t_error(#f" failed: got %d \"%s\" want %d \"%s\"\n", r, strerror(r), x, strerror(x)), 0) )
+#define T(r,f) TX(r,f,0)
+
+static pthread_barrier_t barrier2;
+
+static void *start_lock(void *arg)
+{
+       pthread_mutex_lock(arg);
+       pthread_barrier_wait(&barrier2);
+       return 0;
+}
+
+int main(void)
+{
+       pthread_t td;
+       int r;
+       pthread_mutexattr_t mtx_a;
+       pthread_mutex_t mtx;
+
+       T(r, pthread_barrier_init(&barrier2, 0, 2));
+       T(r, pthread_mutexattr_init(&mtx_a));
+       T(r, pthread_mutexattr_setrobust(&mtx_a, PTHREAD_MUTEX_ROBUST));
+       T(r, pthread_mutexattr_setpshared(&mtx_a, PTHREAD_PROCESS_SHARED));
+       T(r, pthread_mutex_init(&mtx, &mtx_a));
+       T(r, pthread_create(&td, 0, start_lock, &mtx));
+       T(r, pthread_detach(td));
+       pthread_barrier_wait(&barrier2);
+       TX(r, pthread_mutex_trylock(&mtx), EOWNERDEAD);
+       return t_status;
+}