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tests/gem_reloc_vs_gpu: use igt_fork_helper

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Now we do a waitpid instead of a simple wait which could eat
the "wrong" child ...

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Daniel Vetter 2013-09-10 15:29:17 +02:00
parent edd723457c
commit 7c25e8cff1
1 changed files with 4 additions and 13 deletions
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17
tests/gem_reloc_vs_gpu.c
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@ -281,10 +281,9 @@ static void do_test(int fd, bool faulting_reloc)
static void do_forked_test(int fd, unsigned flags) static void do_forked_test(int fd, unsigned flags)
{ {
int num_threads = sysconf(_SC_NPROCESSORS_ONLN); int num_threads = sysconf(_SC_NPROCESSORS_ONLN);
pid_t pid = -1; struct igt_helper_process thrasher;
if (flags & (THRASH | THRASH_INACTIVE)) { if (flags & (THRASH | THRASH_INACTIVE)) {
sighandler_t oldsig;
char fname[FILENAME_MAX]; char fname[FILENAME_MAX];
int drop_caches_fd; int drop_caches_fd;
const char *data = THRASH_INACTIVE ? "0xf" : "0x7"; const char *data = THRASH_INACTIVE ? "0xf" : "0x7";
@ -296,10 +295,7 @@ static void do_forked_test(int fd, unsigned flags)
drop_caches_fd = open(fname, O_WRONLY); drop_caches_fd = open(fname, O_WRONLY);
igt_require(drop_caches_fd >= 0); igt_require(drop_caches_fd >= 0);
oldsig = signal(SIGQUIT, SIG_DFL); igt_fork_helper(&thrasher) {
pid = fork();
signal(SIGQUIT, oldsig);
if (pid == 0) {
while (1) { while (1) {
usleep(1000); usleep(1000);
igt_assert(write(drop_caches_fd, data, strlen(data) + 1) == strlen(data) + 1); igt_assert(write(drop_caches_fd, data, strlen(data) + 1) == strlen(data) + 1);
@ -322,13 +318,8 @@ static void do_forked_test(int fd, unsigned flags)
} }
igt_waitchildren(); igt_waitchildren();
if (flags & (THRASH | THRASH_INACTIVE))
if (pid != -1) { igt_stop_helper(&thrasher);
int exitcode;
kill(pid, SIGQUIT);
wait(&exitcode);
}
} }
int fd; int fd;