Add a wait period (just for demonstration purposes)

Makefile

@@ -4,7 +4,7 @@ LDFLAGS:=-lwayland-client
 wl_unlocker: unlocker.o session-lock.o
 	gcc -o wl_unlocker unlocker.o session-lock.o $(LDFLAGS)
 
-unlocker.o: unlocker.c session-lock.h
+unlocker.o: unlocker.c session-lock.h config.h
 
 session-lock.h:
 	# FIXME: don't hardcode path!

config.h

@@ -0,0 +1,2 @@
+//#define CONFIG_WAIT_PERIOD 2
+#undef CONFIG_WAIT_PERIOD

unlocker.c

@@ -1,4 +1,6 @@
 // Just random stdlib (and POSIX) so I don't have to think about these
+#include "config.h"
+
 #include <unistd.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -9,6 +11,10 @@
 #include <errno.h>
 #include <sys/mman.h>
 
+#ifdef CONFIG_WAIT_PERIOD
+#include <time.h>
+#endif
+
 // Wayland includes
 #include "wayland-client.h"
 #include "session-lock.h"
@@ -97,6 +103,10 @@ int main(void) {
 		// nothing to do, just destroy stuff
 		ext_session_lock_v1_destroy(lock);
 	} else if (lock_state == LOCKED) {
+#ifdef CONFIG_WAIT_PERIOD
+		printf("Waiting %d s before unlocking…\n", CONFIG_WAIT_PERIOD);
+		sleep(CONFIG_WAIT_PERIOD);
+#endif
 		printf("Unlocking…\n");
 		ext_session_lock_v1_unlock_and_destroy(lock);
 	} else {