From: Jeff McGee <jeff.mcgee@xxxxxxxxx>
igt_wait_helper compliments igt_stop_helper and is used when helper
processes are expected to exit naturally.
Signed-off-by: Jeff McGee <jeff.mcgee@xxxxxxxxx>
---
lib/drmtest.c | 17 +++++++++++++++++
lib/drmtest.h | 1 +
2 files changed, 18 insertions(+)
diff --git a/lib/drmtest.c b/lib/drmtest.c
index 8bc70a3..d3d81a3 100644
--- a/lib/drmtest.c
+++ b/lib/drmtest.c
@@ -1241,6 +1241,23 @@ void igt_stop_helper(struct igt_helper_process *proc)
helper_process_count--;
}
+void igt_wait_helper(struct igt_helper_process *proc)
+{
+ int status;
+
+ assert(proc->running);
+
+ while (waitpid(proc->pid, &status, 0) == -1 &&
+ errno == EINTR)
+ ;
+ igt_assert(WIFEXITED(status) && WEXITSTATUS(status) == 0);
+
+ proc->running = false;
+
+ helper_process_pids[proc->id] = -1;
+ helper_process_count--;
+}
+
static void children_exit_handler(int sig)
{
int ret;
diff --git a/lib/drmtest.h b/lib/drmtest.h
index d42a6f7..f945a7e 100644
--- a/lib/drmtest.h
+++ b/lib/drmtest.h
@@ -290,6 +290,7 @@ struct igt_helper_process {
};
bool __igt_fork_helper(struct igt_helper_process *proc);
void igt_stop_helper(struct igt_helper_process *proc);
+void igt_wait_helper(struct igt_helper_process *proc);
#define igt_fork_helper(proc) \
for (; __igt_fork_helper(proc); exit(0))
--
1.8.5.2
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