[CRIU] [PATCH] test: thread_different_uid_gid -- More fixes

[Cyrill Gorcunov]

To make them work, missed in first place. We can
drop off mutex completely as we use task waiter.
test_daemon should be called earlier to not receive
signal later.

Signed-off-by: Cyrill Gorcunov <gorcunov at openvz.org>
---

Sorry for previous send, which has been built-test only.
This one does pass, on top of current criu-dev

 test/zdtm/static/thread_different_uid_gid.c    | 19 ++++---------------
 test/zdtm/static/thread_different_uid_gid.desc |  2 +-
 2 files changed, 5 insertions(+), 16 deletions(-)

diff --git a/test/zdtm/static/thread_different_uid_gid.c b/test/zdtm/static/thread_different_uid_gid.c
index 1a6cdc976045..e992b02479a5 100644
--- a/test/zdtm/static/thread_different_uid_gid.c
+++ b/test/zdtm/static/thread_different_uid_gid.c
@@ -23,12 +23,8 @@ const char *test_author	= "Vitaly Ostrosablin <vostrosablin at virtuozzo.com>";
 
 unsigned int gid;
 unsigned int uid;
-pthread_mutex_t mutex  = PTHREAD_MUTEX_INITIALIZER;
-pthread_cond_t  cond   = PTHREAD_COND_INITIALIZER;
 task_waiter_t t;
 
-int done = 0;
-
 void *chg_uid_gid(void *arg)
 {
 	cap_t newcaps;
@@ -72,12 +68,7 @@ void *chg_uid_gid(void *arg)
 
 	test_msg("Child thread is waiting for main thread's signal\n");
 	task_waiter_complete(&t, 1);
-
-	pthread_mutex_lock(&mutex);
-	while (!done) {
-		pthread_cond_wait(&cond, &mutex);
-	}
-	pthread_mutex_unlock(&mutex);
+	task_waiter_wait4(&t, 2);
 
 	test_msg("Child thread returns\n");
 	return NULL;
@@ -94,6 +85,8 @@ int main(int argc, char **argv)
 	test_init(argc, argv);
 	task_waiter_init(&t);
 
+	test_daemon();
+
 	if (getuid() != 0) {
 		fail("Test is expected to be run with root privileges\n");
 		exit(1);
@@ -142,7 +135,6 @@ int main(int argc, char **argv)
 	}
 	test_msg("Main thread is waiting for signal\n");
 
-	test_daemon();
 	test_waitsig();
 
 	if (gid == getgid() || uid == getuid()) {
@@ -150,10 +142,7 @@ int main(int argc, char **argv)
 		exit(1);
 	}
 
-	pthread_mutex_lock(&mutex);
-	done = 1;
-	pthread_cond_signal(&cond);
-	pthread_mutex_unlock(&mutex);
+	task_waiter_complete(&t, 2);
 	pthread_join(diff_cred_thread, NULL);
 	test_msg("Threads joined\n");
 
diff --git a/test/zdtm/static/thread_different_uid_gid.desc b/test/zdtm/static/thread_different_uid_gid.desc
index 2eac7e654bf2..fa2c82d083ee 100644
--- a/test/zdtm/static/thread_different_uid_gid.desc
+++ b/test/zdtm/static/thread_different_uid_gid.desc
@@ -1 +1 @@
-{'flags': 'suid'}
+{'flavor': 'h', 'flags': 'suid'}
-- 
2.7.5