common code: Add support for main loop handler

src/amps/main.c

@@ -365,7 +365,7 @@ int main(int argc, char *argv[])
 			fprintf(stderr, "Error setting SCHED_RR with prio %d\n", rt_prio);
 	}
 
-	main_loop(&quit, latency, interval);
+	main_loop(&quit, latency, interval, NULL);
 
 	if (rt_prio > 0) {
 		struct sched_param schedp;

src/anetz/main.c

@@ -193,7 +193,7 @@ int main(int argc, char *argv[])
 			fprintf(stderr, "Error setting SCHED_RR with prio %d\n", rt_prio);
 	}
 
-	main_loop(&quit, latency, interval);
+	main_loop(&quit, latency, interval, NULL);
 
 	if (rt_prio > 0) {
 		struct sched_param schedp;

src/bnetz/main.c

@@ -208,7 +208,7 @@ int main(int argc, char *argv[])
 			fprintf(stderr, "Error setting SCHED_RR with prio %d\n", rt_prio);
 	}
 
-	main_loop(&quit, latency, interval);
+	main_loop(&quit, latency, interval, NULL);
 
 	if (rt_prio > 0) {
 		struct sched_param schedp;

src/cnetz/main.c

@@ -313,7 +313,7 @@ int main(int argc, char *argv[])
 			fprintf(stderr, "Error setting SCHED_RR with prio %d\n", rt_prio);
 	}
 
-	main_loop(&quit, latency, interval);
+	main_loop(&quit, latency, interval, NULL);
 
 	if (rt_prio > 0) {
 		struct sched_param schedp;

src/common/main.h

@@ -37,5 +37,5 @@ void opt_switch_common(int c, char *arg0, int *skip_args);
 extern int quit;
 void sighandler(int sigset);
 
-void main_loop(int *quit, int latency, int interval);
+void main_loop(int *quit, int latency, int interval, void (*myhandler)(void));
 

src/common/main_common.c

@@ -277,7 +277,7 @@ static int get_char()
 }
 
 /* Loop through all transceiver instances of one network. */
-void main_loop(int *quit, int latency, int interval)
+void main_loop(int *quit, int latency, int interval, void (*myhandler)(void))
 {
 	int latspl;
 	sender_t *sender;
@@ -332,6 +332,9 @@ next_char:
 		/* process audio of built-in call control */
 		process_call(c);
 
+		if (myhandler)
+			myhandler();
+
 		/* sleep a while */
 		usleep(interval * 1000);
 	}

src/nmt/main.c

@@ -286,7 +286,7 @@ int main(int argc, char *argv[])
 			fprintf(stderr, "Error setting SCHED_RR with prio %d\n", rt_prio);
 	}
 
-	main_loop(&quit, latency, interval);
+	main_loop(&quit, latency, interval, NULL);
 
 	if (rt_prio > 0) {
 		struct sched_param schedp;