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authorLinus Torvalds <torvalds@linux-foundation.org>2015-06-29 09:11:10 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-06-29 09:11:10 -0700
commitd93a74a91b847b8098ebae749891c6f4fe563da0 (patch)
treefb1ef1b9f496a3ad492ce076ae8f41d716964c63 /tools/testing/selftests/futex/functional/futex_wait_timeout.c
parentc63f887bdae80858c7cebf914f45f69bbaa88e8d (diff)
parent2278e5ed9f36baca7c972ed17aae7467ca91b2b9 (diff)
Merge tag 'linux-kselftest-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest update from Shuah Khan: "This update adds two new test suites: futex and seccomp. In addition, it includes fixes for bugs in timers, other tests, and compile framework. It introduces new quicktest feature to enable users to choose to run tests that complete in a short time" * tag 'linux-kselftest-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests: add quicktest support selftests: add seccomp suite selftest, x86: fix incorrect comment tools selftests: Fix 'clean' target with make 3.81 selftests/futex: Add .gitignore kselftest: Add exit code defines selftests: Add futex tests to the top-level Makefile selftests/futex: Increment ksft pass and fail counters selftests/futex: Update Makefile to use lib.mk selftests: Add futex functional tests kselftests: timers: Check _ALARM clockids are supported before suspending kselftests: timers: Ease alarmtimer-suspend unreasonable latency value kselftests: timers: Increase delay between suspends in alarmtimer-suspend selftests/exec: do not install subdir as it is already created selftests/ftrace: install test.d selftests: copy TEST_DIRS to INSTALL_PATH Test compaction of mlocked memory selftests/mount: output WARN messages when mount test skipped selftests/timers: Make git ignore all binaries in timers test suite
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;
+}