--- libaitio/example/test_exec.c	2013/12/05 14:12:25	1.1.2.3
+++ libaitio/example/test_exec.c	2013/12/05 16:02:02	1.1.2.4
@@ -7,7 +7,7 @@ int
 main(int argc, char **argv)
 {
 	prog_t *p;
-	int stat;
+	int ret = 0;
 
 	if (argc < 2)
 		return 1;
@@ -16,17 +16,21 @@ main(int argc, char **argv)
 	if (!p) {
 		ELIBERR(io);
 		return 2;
+	} else if ((ret = io_progCheck(p))) {
+		printf("0.exited procs=%d\n", ret);
+		goto end;
 	} else {
 		printf("wait for keystroke %p ", p);
 		getchar();
 	}
 
-	printf("%d\n", waitpid(-1, &stat, WNOHANG));
-	printf("%d\n", waitpid(-1, &stat, WNOHANG));
-	printf("%d\n", waitpid(-1, &stat, WNOHANG));
-	printf("%d\n", waitpid(-1, &stat, WNOHANG));
-	printf("%d\n", waitpid(-1, &stat, WNOHANG));
+	ret = io_progCheck(p);
+	if (ret) {
+		printf("1.exited procs=%d\n", ret);
+		goto end;
+	}
 
+end:
 	io_progDestroy(&p);
-	return 0;
+	return ret;
 }