From: Karel Zak <kzak@redhat.com>
Date: Wed, 13 Mar 2013 11:13:11 +0000 (+0100)
Subject: include: add timer.h
X-Git-Tag: v2.23-rc1~66
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=01acff6e0919ff373ffd9cf94b202d27c6be19a1;p=thirdparty%2Futil-linux.git

include: add timer.h

Signed-off-by: Karel Zak <kzak@redhat.com>
---

diff --git a/include/Makemodule.am b/include/Makemodule.am
index 0c1656d2d0..7ba4593e4c 100644
--- a/include/Makemodule.am
+++ b/include/Makemodule.am
@@ -39,6 +39,7 @@ dist_noinst_HEADERS += \
 	include/strutils.h \
 	include/swapheader.h \
 	include/sysfs.h \
+	include/timer.h \
 	include/tt.h \
 	include/ttyutils.h \
 	include/wholedisk.h \
diff --git a/include/timer.h b/include/timer.h
new file mode 100644
index 0000000000..b820453d40
--- /dev/null
+++ b/include/timer.h
@@ -0,0 +1,31 @@
+#ifndef UTIL_LINUX_TIMER_H
+#define UTIL_LINUX_TIMER_H
+
+#include <signal.h>
+#include <sys/time.h>
+
+static inline void setup_timer(
+			struct itimerval *timer,
+			struct itimerval *old_timer,
+			struct sigaction *old_sa,
+			void (*timeout_handler)(int))
+{
+	struct sigaction sa;
+
+	memset(&sa, 0, sizeof sa);
+	sa.sa_handler = timeout_handler;
+	sa.sa_flags = SA_RESETHAND;
+	sigaction(SIGALRM, &sa, old_sa);
+
+	setitimer(ITIMER_REAL, timer, old_timer);
+}
+
+static inline void cancel_timer(
+			struct itimerval *old_timer,
+			struct sigaction *old_sa)
+{
+	setitimer(ITIMER_REAL, old_timer, NULL);
+	sigaction(SIGALRM, old_sa, NULL);
+}
+
+#endif