1 files changed, 24 insertions, 0 deletions
diff --git a/src/ndelay.c b/src/ndelay.c
new file mode 100644
index 0000000..d6769c7
--- /dev/null
+++ b/src/ndelay.c
@@ -0,0 +1,24 @@
+#include <sys/types.h>
+#include <fcntl.h>
+#include "ndelay.h"
+
+/**
+  * @file ndelay.c
+  * @author djb
+  * @ref qmail	
+  * @brief delaying of IO operations
+  */
+
+#ifndef O_NONBLOCK
+#define O_NONBLOCK O_NDELAY
+#endif
+
+int ndelay_on(int fd)
+{
+  return fcntl(fd,F_SETFL,fcntl(fd,F_GETFL,0) | O_NONBLOCK);
+}
+
+int ndelay_off(int fd)
+{
+  return fcntl(fd,F_SETFL,fcntl(fd,F_GETFL,0) & ~O_NONBLOCK);
+}