check rc of system call, eliminating unused warning

atticusrussell · Jun 19, 2023 · e5018b9 · e5018b9
1 parent f8d07f8
commit e5018b9
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/src/angular_servo.cpp b/src/angular_servo.cpp
@@ -119,10 +119,10 @@ void killPigpiod() {
 void startPigpiod() {
   if (!isPigpiodRunning()) {
     cout << "pigpio daemon not running. attempting to start it." << endl;
-    system("sudo systemctl start pigpiod");
+    int rc = system("sudo systemctl start pigpiod");
     sleep(1);
 
-    if (isPigpiodRunning()) {
+    if (isPigpiodRunning() && (rc != -1)) {
       // Successfully started the pigpiod daemon
       cout << "pigpiod daemon started successfully" << endl;
     } else {