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author | gowrishankar <gowrishankar.m@in.ibm.com> | 2009-11-15 20:42:36 +0530 |
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committer | Darren Hart <dvhltc@us.ibm.com> | 2009-11-16 11:06:02 -0800 |
commit | 3fa9af1c4d733bb69f015439df3299497467bff6 (patch) | |
tree | 4ace627a576517bd41571c464b70c957df1ac796 | |
parent | 97638de288865332d2812667735e05b2a9da35cd (diff) | |
download | futextest-3fa9af1c4d733bb69f015439df3299497467bff6.tar.gz |
add futex_wait_wouldblock test
Test the futex op FUTEX_WAIT for EWOULDBLOCK error code.
Signed-off-by: Gowrishankar <gowrishankar.m@in.ibm.com>
Signed-off-by: Darren Hart <dvhltc@us.ibm.com>
-rw-r--r-- | functional/Makefile | 1 | ||||
-rw-r--r-- | functional/futex_wait_wouldblock.c | 96 | ||||
-rwxr-xr-x | functional/run.sh | 3 |
3 files changed, 100 insertions, 0 deletions
diff --git a/functional/Makefile b/functional/Makefile index 3c8f5ce..69356fa 100644 --- a/functional/Makefile +++ b/functional/Makefile @@ -5,6 +5,7 @@ LDFLAGS := $(LDFLAGS) -lpthread -lrt HEADERS := ../include/futextest.h TARGETS := \ futex_wait_timeout \ + futex_wait_wouldblock \ futex_requeue_pi \ futex_requeue_pi_signal_restart \ futex_requeue_pi_mismatched_ops diff --git a/functional/futex_wait_wouldblock.c b/functional/futex_wait_wouldblock.c new file mode 100644 index 0000000..ee70302 --- /dev/null +++ b/functional/futex_wait_wouldblock.c @@ -0,0 +1,96 @@ +/****************************************************************************** + * + * 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. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See + * the GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * NAME + * futex_wait_wouldblock.c + * + * DESCRIPTION + * Test if FUTEX_WAIT op returns -EWOULDBLOCK if the futex value differs + * from the unexpected one. + * + * AUTHOR + * Gowrishankar <gowrishankar.m@in.ibm.com> + * + * HISTORY + * 2009-Nov-14: Initial version by Gowrishankar <gowrishankar.m@in.ibm.com> + * + *****************************************************************************/ + +#include <errno.h> +#include <getopt.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <time.h> +#include "futextest.h" + +#define timeout_ns 100000 + +void usage(char *prog) +{ + printf("Usage: %s\n", prog); + printf(" -c Use color\n"); + printf(" -h Display this help message\n"); + printf(" -v L Verbosity level: %d=QUIET %d=CRITICAL %d=INFO\n", + VQUIET, VCRITICAL, VINFO); +} + +int main(int argc, char *argv[]) +{ + struct timespec to = {.tv_sec = 0, .tv_nsec = timeout_ns}; + futex_t f1 = FUTEX_INITIALIZER; + int ret = 0; + int c; + + while ((c = getopt(argc, argv, "cht:v:")) != -1) { + switch(c) { + case 'c': + futextest_use_color(1); + break; + case 'h': + usage(basename(argv[0])); + exit(0); + case 'v': + futextest_verbosity(atoi(optarg)); + break; + default: + usage(basename(argv[0])); + exit(1); + } + } + + printf("%s: Test the unexpected futex value in FUTEX_WAIT\n", + basename(argv[0])); + + info("Calling futex_wait on f1: %u @ %p with val=%u\n", f1, &f1, f1+1); + ret = futex_wait(&f1, f1, &to, FUTEX_PRIVATE_FLAG); + if (ret < 0) { + ret = -errno; + if (ret == -EWOULDBLOCK) + ret = 0; + else + fail("returned error is not '%s' in FUTEX_WAIT, but '%s'\n", \ + strerror(EWOULDBLOCK), strerror(errno)); + } else { + fail("futex_wait returned %d\n", ret); + ret = -1; + } + + printf("Result: %s\n", ret ? FAIL : PASS); + return ret; +} diff --git a/functional/run.sh b/functional/run.sh index 01aea59..d377c5f 100755 --- a/functional/run.sh +++ b/functional/run.sh @@ -67,3 +67,6 @@ echo echo ./futex_wait_timeout $COLOR + +echo +./futex_wait_wouldblock $COLOR |