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authorRich Felker <dalias@aerifal.cx>2011-02-12 00:22:29 -0500
committerRich Felker <dalias@aerifal.cx>2011-02-12 00:22:29 -0500
commit0b44a0315b47dd8eced9f3b7f31580cf14bbfc01 (patch)
tree6eaef0d8a720fa3da580de87b647fff796fe80b3 /src/signal/setitimer.c
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initial check-in, version 0.5.0v0.5.0
Diffstat (limited to 'src/signal/setitimer.c')
-rw-r--r--src/signal/setitimer.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/src/signal/setitimer.c b/src/signal/setitimer.c
new file mode 100644
index 00000000..cacab036
--- /dev/null
+++ b/src/signal/setitimer.c
@@ -0,0 +1,15 @@
+#include <sys/time.h>
+#include "syscall.h"
+
+int setitimer(int which, const struct itimerval *new, struct itimerval *old)
+{
+ int ret;
+ long knew[4] = {
+ new->it_interval.tv_sec, new->it_interval.tv_usec,
+ new->it_value.tv_sec, new->it_value.tv_usec
+ }, kold[4];
+
+ if (!(ret = syscall3(__NR_setitimer, which, (long)&knew, old ? (long)&kold : 0)) && old)
+ *old = (struct itimerval){ { kold[0], kold[1] }, { kold[2], kold[3] } };
+ return ret;
+}