external/ibm-public/postfix/dist/src/master/master_flow.c

   1 /*      $NetBSD$        */
   2
   3 /* System library. */
   4
   5 #include <sys_defs.h>
   6 #include <unistd.h>
   7 #include <stdlib.h>
   8
   9 /* Utility library. */
  10
  11 #include <msg.h>
  12 #include <iostuff.h>
  13
  14 /* Application-specific. */
  15
  16 #include <master.h>
  17 #include <master_proto.h>
  18
  19 int     master_flow_pipe[2];
  20
  21 /* master_flow_init - initialize the flow control channel */
  22
  23 void    master_flow_init(void)
  24 {
  25     const char *myname = "master_flow_init";
  26
  27     if (pipe(master_flow_pipe) < 0)
  28         msg_fatal("%s: pipe: %m", myname);
  29
  30     non_blocking(master_flow_pipe[0], NON_BLOCKING);
  31     non_blocking(master_flow_pipe[1], NON_BLOCKING);
  32
  33     close_on_exec(master_flow_pipe[0], CLOSE_ON_EXEC);
  34     close_on_exec(master_flow_pipe[1], CLOSE_ON_EXEC);
  35 }