1 files changed, 49 insertions, 0 deletions
diff --git a/nsprpub/pr/tests/selintr.c b/nsprpub/pr/tests/selintr.c
new file mode 100644
index 0000000000..84513f6887
--- /dev/null
+++ b/nsprpub/pr/tests/selintr.c
@@ -0,0 +1,49 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+/*
+ * Test whether classic NSPR's select() wrapper properly blocks
+ * the periodic SIGALRM clocks.  On some platforms (such as
+ * HP-UX and SINIX) an interrupted select() system call is
+ * restarted with the originally specified timeout, ignoring
+ * the time that has elapsed.  If a select() call is interrupted
+ * repeatedly, it will never time out.  (See Bugzilla bug #39674.)
+ */
+
+#if !defined(XP_UNIX)
+
+/*
+ * This test is applicable to Unix only.
+ */
+
+int main()
+{
+    return 0;
+}
+
+#else /* XP_UNIX */
+
+#include "nspr.h"
+
+#include <sys/time.h>
+#include <stdio.h>
+
+int main(int argc, char **argv)
+{
+    struct timeval timeout;
+    int rv;
+
+    PR_SetError(0, 0);  /* force NSPR to initialize */
+    PR_EnableClockInterrupts();
+
+    /* 2 seconds timeout */
+    timeout.tv_sec = 2;
+    timeout.tv_usec = 0;
+    rv = select(1, NULL, NULL, NULL, &timeout);
+    printf("select returned %d\n", rv);
+    return 0;
+}
+
+#endif /* XP_UNIX */