From d91c24070b00c1b9d3ae877554d43276d1fcd04f Mon Sep 17 00:00:00 2001
From: Eric Andersen <andersen@codepoet.org>
Date: Thu, 7 Oct 2004 02:18:56 +0000
Subject: implement SuSv3 required ualarm()

---
 libc/unistd/ualarm.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)
 create mode 100644 libc/unistd/ualarm.c

diff --git a/libc/unistd/ualarm.c b/libc/unistd/ualarm.c
new file mode 100644
index 000000000..207a47298
--- /dev/null
+++ b/libc/unistd/ualarm.c
@@ -0,0 +1,19 @@
+#define _GNU_SOURCE
+#include <time.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+useconds_t ualarm(useconds_t value, useconds_t interval)
+{
+    struct itimerval otimer;
+    const struct itimerval itimer = {
+	{ 0, interval },
+	{ 0, value}
+    };
+
+    if (setitimer(ITIMER_REAL, &itimer, &otimer) < 0) {
+	return -1;
+    }
+    return((otimer.it_value.tv_sec * 1000000) + otimer.it_value.tv_usec);
+}
-- 
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