From 1d5a3507b2deb7d23ba0427aacac6805d7acf5ac Mon Sep 17 00:00:00 2001
From: Andreas Kling <awesomekling@gmail.com>
Date: Fri, 7 Jun 2019 11:30:22 +0200
Subject: [PATCH] Userland: Add a little test program for the alarm() syscall.

---
 Userland/al.cpp | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 Userland/al.cpp

diff --git a/Userland/al.cpp b/Userland/al.cpp
new file mode 100644
index 0000000000..d5b2cad0fd
--- /dev/null
+++ b/Userland/al.cpp
@@ -0,0 +1,22 @@
+#include <unistd.h>
+#include <signal.h>
+#include <stdio.h>
+
+static volatile bool got_alarm = false;
+
+int main(int c, char** v)
+{
+    unsigned ret = alarm(5);
+    printf("alarm() with no alarm set: %u\n", ret);
+    ret = alarm(2);
+    printf("alarm() with an alarm(5) set: %u\n", ret);
+
+    signal(SIGALRM, [] (int) {
+        got_alarm = true;
+    });
+    printf("Entering infinite loop.\n");
+    while (!got_alarm) {
+    }
+    printf("Oh, we got the alarm. Exiting :)\n");
+    return 0;
+}