From: Bartosz Golaszewski <bartekgola@gmail.com>
Date: Tue, 13 Jun 2017 12:58:20 +0000 (+0200)
Subject: tests: unblock SIGCHLD after closing the signalfd
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=a3ed2e05b47daed1c02453eb93aec6c30419e61c;p=qemu-gpiodev%2Flibgpiod.git

tests: unblock SIGCHLD after closing the signalfd

Restore the state from before running the subprocess.

Signed-off-by: Bartosz Golaszewski <bartekgola@gmail.com>
---

diff --git a/tests/gpiod-test.c b/tests/gpiod-test.c
index eb3fbff..f7073eb 100644
--- a/tests/gpiod-test.c
+++ b/tests/gpiod-test.c
@@ -554,6 +554,7 @@ void test_tool_wait(void)
 	struct signalfd_siginfo sinfo;
 	struct gpiotool_proc *proc;
 	struct pollfd pfd;
+	sigset_t sigmask;
 	int status;
 	ssize_t rd;
 
@@ -586,6 +587,13 @@ void test_tool_wait(void)
 	else if (rd != sizeof(sinfo))
 		die("invalid size of signal info");
 
+	sigemptyset(&sigmask);
+	sigaddset(&sigmask, SIGCHLD);
+
+	status = sigprocmask(SIG_UNBLOCK, &sigmask, NULL);
+	if (status)
+		die_perr("unable to unblock signals");
+
 	gpiotool_readall(proc->stdout_fd, &proc->stdout);
 	gpiotool_readall(proc->stderr_fd, &proc->stderr);