1 files changed, 91 insertions, 0 deletions
diff --git a/src/ccapi/test/simple_lock_test.c b/src/ccapi/test/simple_lock_test.c
new file mode 100644
index 000000000000..8961d99992a7
--- /dev/null
+++ b/src/ccapi/test/simple_lock_test.c
@@ -0,0 +1,91 @@
+/*
+    simple_lock_test.c
+
+    Initializes two contexts in two different threads and tries to get read locks on both at the same time.
+    Hangs at line 24.
+*/
+#include <stdio.h>
+#include <stdarg.h>
+
+#include "test_ccapi_log.h"
+
+#if defined(macintosh) || (defined(__MACH__) && defined(__APPLE__))
+#include <TargetConditionals.h>
+#endif
+
+#ifdef TARGET_OS_MAC
+#include <stdlib.h>
+#include <pthread.h>
+#include <Kerberos/CredentialsCache.h>
+#else
+#include "CredentialsCache.h"
+#endif
+
+
+void *other_thread (void) {
+    cc_int32 err;
+    cc_context_t context = NULL;
+
+    err = cc_initialize(&context, ccapi_version_7, NULL, NULL);
+
+    log_error("thread: attempting lock. may hang. err == %d", err);
+
+    if (!err) {
+        // hangs with cc_lock_read which should succeed immediately, but does not hang with write, upgrade, and downgrade, which fail immediately
+        err = cc_context_lock(context, cc_lock_read, cc_lock_noblock);
+    }
+
+    if (context) {
+        cc_context_unlock(context);
+        cc_context_release(context);
+        context = NULL;
+    }
+    log_error("thread: return. err == %d", err);
+}
+
+
+int main (int argc, char *argv[]) {
+    cc_int32        err;
+    int             status;
+    cc_context_t    context = NULL;
+
+#ifdef TARGET_OS_MAC
+    pthread_t       thread_id;
+#endif
+
+    err = cc_initialize(&context, ccapi_version_7, NULL, NULL);
+    if (!err) {
+        err = cc_context_lock(context, cc_lock_read, cc_lock_noblock);
+    }
+
+    log_error("main: initialized and read locked context. err == %d", err);
+
+#ifdef TARGET_OS_MAC
+   status = pthread_create (&thread_id, NULL, (void *) other_thread, NULL);
+    if (status != 0) {
+        log_error("pthread_create() returned %d", status);
+        exit(-1);
+    }
+
+    pthread_join(thread_id, NULL);
+#else
+
+#endif
+
+    log_error("main: unlocking and releasing context. err == %d", err);
+
+    if (context) {
+        log_error("main: calling cc_context_unlock");
+        cc_context_unlock(context);
+        log_error("main: calling cc_context_release");
+        cc_context_release(context);
+        context = NULL;
+    }
+
+    log_error("main: return. err == %d", err);
+
+#if defined(_WIN32)
+    UNREFERENCED_PARAMETER(status);       // no whining!
+#endif
+    return 0;
+}