1 files changed, 33 insertions, 0 deletions
diff --git a/src/master/master_flow.c b/src/master/master_flow.c
new file mode 100644
index 0000000..68ae57d
--- /dev/null
+++ b/src/master/master_flow.c
@@ -0,0 +1,33 @@
+/* System library. */
+
+#include <sys_defs.h>
+#include <unistd.h>
+#include <stdlib.h>
+
+/* Utility library. */
+
+#include <msg.h>
+#include <iostuff.h>
+
+/* Application-specific. */
+
+#include <master.h>
+#include <master_proto.h>
+
+int     master_flow_pipe[2];
+
+/* master_flow_init - initialize the flow control channel */
+
+void    master_flow_init(void)
+{
+    const char *myname = "master_flow_init";
+
+    if (pipe(master_flow_pipe) < 0)
+	msg_fatal("%s: pipe: %m", myname);
+
+    non_blocking(master_flow_pipe[0], NON_BLOCKING);
+    non_blocking(master_flow_pipe[1], NON_BLOCKING);
+
+    close_on_exec(master_flow_pipe[0], CLOSE_ON_EXEC);
+    close_on_exec(master_flow_pipe[1], CLOSE_ON_EXEC);
+}