Change signal to sigaction

1 files changed, 11 insertions, 6 deletions

diff --git a/examples/sinewave/sinewave_example.cpp b/examples/sinewave/sinewave_example.cpp
index a0089d9..8b50804 100644
--- a/examples/sinewave/sinewave_example.cpp
+++ b/examples/sinewave/sinewave_example.cpp
@@ -10,11 +10,10 @@
 
 #include <hwd.h>
 
+volatile sig_atomic_t keep_running{ 1 };
 
-volatile bool signalEnd = false;
-
-void sig_handler(int signum) {
-	signalEnd = true;
+void termination_handler(int signum){
+	keep_running = false;
 }
 
 using seconds = std::chrono::duration<double>;
@@ -22,7 +21,13 @@ using Clock = std::chrono::high_resolution_clock;
 
 int main(int argc, char* argv[]) {
 
-	signal(SIGINT, sig_handler);
+	struct sigaction int_action;
+
+	int_action.sa_handler = termination_handler;
+	sigemptyset(&int_action.sa_mask);
+	int_action.sa_flags = 0;
+	sigaction(SIGINT, &int_action, NULL);
+
 
 	seconds interval{ 0.01 };
 	int i = 0;
@@ -51,7 +56,7 @@ int main(int argc, char* argv[]) {
 	}
 
 
-	while (!signalEnd) {
+	while (keep_running) {
 		if (i >= samples) break;
 		i++;