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-rw-r--r--include/sys/timerfd.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/sys/timerfd.h b/include/sys/timerfd.h
index 0afa7b0e..df645fe8 100644
--- a/include/sys/timerfd.h
+++ b/include/sys/timerfd.h
@@ -6,6 +6,12 @@ extern "C" {
 #endif
 
 #include <time.h>
+#include <fcntl.h>
+
+#define TFD_NONBLOCK O_NONBLOCK
+#define TFD_CLOEXEC O_CLOEXEC
+
+#define TFD_TIMER_ABSTIME 1
 
 int timerfd_create(int, int);
 int timerfd_settime(int, int, const struct itimerspec *, struct itimerspec *);