[igt-dev] [PATCH i-g-t 3/4] lib: Don't leak children in igt_waitchildren_timeout

[Daniel Vetter]

Instead of cleaning up the mess in igt_exit make sure we don't even
let it out of the container. See also

commit 754876378d6c9b2775e8c07b4d16f9878c55949f
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Fri Feb 26 22:11:10 2016 +0000

    igt/gem_sync: Enforce a timeout of 20s

which added this helper.

To make sure that everyone follows the rules, add an assert.

We're keeping the cleanup code as a failsafe, and because it speeds
up the testcase I'm following up with.

Cc: Chris Wilson <chris at chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter at intel.com>
---
 lib/igt_core.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/lib/igt_core.c b/lib/igt_core.c
index 49fbf70deb06..a7105f0591fc 100644
--- a/lib/igt_core.c
+++ b/lib/igt_core.c
@@ -1525,6 +1525,7 @@ void igt_exit(void)
 
 	for (int c = 0; c < num_test_children; c++)
 		kill(test_children[c], SIGKILL);
+	assert(!num_test_children);
 
 	if (!test_with_subtests) {
 		struct timespec now;
@@ -1842,6 +1843,11 @@ void igt_waitchildren_timeout(int seconds, const char *reason)
 	igt_set_timeout(seconds, reason);
 	igt_waitchildren();
 	igt_reset_timeout();
+
+	for (int c = 0; c < num_test_children; c++)
+		kill(test_children[c], SIGKILL);
+
+	__igt_waitchildren();
 }
 
 /* exit handler code */
-- 
2.20.1