misc

Signed-off-by: Mattias Andrée <maandree@kth.se>

1 files changed, 50 insertions, 0 deletions

diff --git a/sig.c b/sig.c
new file mode 100644
index 0000000..c7900fd
--- /dev/null
+++ b/sig.c
@@ -0,0 +1,50 @@
+/* See LICENSE file for copyright and license details. */
+#include "common.h"
+
+
+static void
+sighandler(int signo)
+{
+	(void) signo;
+	exiting = 1;
+}
+
+
+void
+setup_sighandler(void)
+{
+	struct sigaction sa;
+	memset(&sa, 0, sizeof(sa));
+	sa.sa_handler = &sighandler;
+	sigemptyset(&sa.sa_mask);
+	if (sigaction(SIGTERM, &sa, NULL))
+		eprintf("sigaction SIGTERM {.sa_handler=<function>, .sa_mask={}, .sa_flags=0} NULL:");
+	if (sigaction(SIGINT, &sa, NULL))
+		eprintf("sigaction SIGINT {.sa_handler=<function>, .sa_mask={}, .sa_flags=0} NULL:");
+}
+
+
+void
+block_sigs(void)
+{
+	sigset_t sigset;
+	sigemptyset(&sigset);
+	sigaddset(&sigset, SIGTERM);
+	sigaddset(&sigset, SIGINT);
+	errno = pthread_sigmask(SIG_BLOCK, &sigset, NULL);
+	if (errno)
+		eprintf("pthread_sigmask SIG_BLOCK {SIGTERM, SIGINT} NULL:");
+}
+
+
+void
+unblock_sigs(void)
+{
+	sigset_t sigset;
+	sigemptyset(&sigset);
+	sigaddset(&sigset, SIGTERM);
+	sigaddset(&sigset, SIGINT);
+	errno = pthread_sigmask(SIG_UNBLOCK, &sigset, NULL);
+	if (errno)
+		eprintf("pthread_sigmask SIG_UNBLOCK {SIGTERM, SIGINT} NULL:");
+}