add the script function

.gitignore

@@ -48,3 +48,5 @@ gpiod-test
 
 # man pages
 *.man
+
+.vscode/

tools/gpiomon.c

@@ -28,10 +28,11 @@ static const struct option longopts[] = {
 	{ "falling-edge",	no_argument,		NULL,	'f' },
 	{ "line-buffered",	no_argument,		NULL,	'b' },
 	{ "format",		required_argument,	NULL,	'F' },
+	{ "script",		required_argument,	NULL,	'S' },
 	{ GETOPT_NULL_LONGOPT },
 };
 
-static const char *const shortopts = "+hvln:srfbF:";
+static const char *const shortopts = "+hvln:srfbF:S:";
 
 static void print_help(void)
 {
@@ -55,6 +56,7 @@ static void print_help(void)
 	printf("  %%e:  event type (0 - falling edge, 1 rising edge)\n");
 	printf("  %%s:  seconds part of the event timestamp\n");
 	printf("  %%n:  nanoseconds part of the event timestamp\n");
+	printf("  -S, --script=SCT\tspecify script to run upon completion\n");
 }
 
 struct mon_ctx {
@@ -64,6 +66,7 @@ struct mon_ctx {
 
 	bool silent;
 	char *fmt;
+	char *sct;
 
 	int sigfd;
 };
@@ -214,8 +217,10 @@ static int event_callback(int event_type, unsigned int line_offset,
 		return GPIOD_CTXLESS_EVENT_CB_RET_OK;
 	}
 
-	if (ctx->events_wanted && ctx->events_done >= ctx->events_wanted)
+	if (ctx->events_wanted && ctx->events_done >= ctx->events_wanted) {
+		system(ctx->sct);
 		return GPIOD_CTXLESS_EVENT_CB_RET_STOP;
+	}
 
 	return GPIOD_CTXLESS_EVENT_CB_RET_OK;
 }