summaryrefslogtreecommitdiffstats
path: root/tools/testing/selftests/futex/functional/futex_wait_timeout.c
diff options
context:
space:
mode:
Diffstat (limited to 'tools/testing/selftests/futex/functional/futex_wait_timeout.c')
-rw-r--r--tools/testing/selftests/futex/functional/futex_wait_timeout.c86
1 files changed, 86 insertions, 0 deletions
diff --git a/tools/testing/selftests/futex/functional/futex_wait_timeout.c b/tools/testing/selftests/futex/functional/futex_wait_timeout.c
new file mode 100644
index 000000000000..ab428ca894de
--- /dev/null
+++ b/tools/testing/selftests/futex/functional/futex_wait_timeout.c
@@ -0,0 +1,86 @@
+/******************************************************************************
+ *
+ * Copyright © International Business Machines Corp., 2009
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * DESCRIPTION
+ * Block on a futex and wait for timeout.
+ *
+ * AUTHOR
+ * Darren Hart <dvhart@linux.intel.com>
+ *
+ * HISTORY
+ * 2009-Nov-6: Initial version by Darren Hart <dvhart@linux.intel.com>
+ *
+ *****************************************************************************/
+
+#include <errno.h>
+#include <getopt.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include "futextest.h"
+#include "logging.h"
+
+static long timeout_ns = 100000; /* 100us default timeout */
+
+void usage(char *prog)
+{
+ printf("Usage: %s\n", prog);
+ printf(" -c Use color\n");
+ printf(" -h Display this help message\n");
+ printf(" -t N Timeout in nanoseconds (default: 100,000)\n");
+ printf(" -v L Verbosity level: %d=QUIET %d=CRITICAL %d=INFO\n",
+ VQUIET, VCRITICAL, VINFO);
+}
+
+int main(int argc, char *argv[])
+{
+ futex_t f1 = FUTEX_INITIALIZER;
+ struct timespec to;
+ int res, ret = RET_PASS;
+ int c;
+
+ while ((c = getopt(argc, argv, "cht:v:")) != -1) {
+ switch (c) {
+ case 'c':
+ log_color(1);
+ break;
+ case 'h':
+ usage(basename(argv[0]));
+ exit(0);
+ case 't':
+ timeout_ns = atoi(optarg);
+ break;
+ case 'v':
+ log_verbosity(atoi(optarg));
+ break;
+ default:
+ usage(basename(argv[0]));
+ exit(1);
+ }
+ }
+
+ printf("%s: Block on a futex and wait for timeout\n",
+ basename(argv[0]));
+ printf("\tArguments: timeout=%ldns\n", timeout_ns);
+
+ /* initialize timeout */
+ to.tv_sec = 0;
+ to.tv_nsec = timeout_ns;
+
+ info("Calling futex_wait on f1: %u @ %p\n", f1, &f1);
+ res = futex_wait(&f1, f1, &to, FUTEX_PRIVATE_FLAG);
+ if (!res || errno != ETIMEDOUT) {
+ fail("futex_wait returned %d\n", ret < 0 ? errno : ret);
+ ret = RET_FAIL;
+ }
+
+ print_result(ret);
+ return ret;
+}