mdw@git.distorted.org.uk Git - qmail/blob - trigger.c

   1 #include "select.h"
   2 #include "open.h"
   3 #include "trigger.h"
   4 #include "hasnpbg1.h"
   5
   6 static int fd = -1;
   7 #ifdef HASNAMEDPIPEBUG1
   8 static int fdw = -1;
   9 #endif
  10
  11 void trigger_set()
  12 {
  13  if (fd != -1)
  14    close(fd);
  15 #ifdef HASNAMEDPIPEBUG1
  16  if (fdw != -1)
  17    close(fdw);
  18 #endif
  19  fd = open_read("lock/trigger");
  20 #ifdef HASNAMEDPIPEBUG1
  21  fdw = open_write("lock/trigger");
  22 #endif
  23 }
  24
  25 void trigger_selprep(nfds,rfds)
  26 int *nfds;
  27 fd_set *rfds;
  28 {
  29  if (fd != -1)
  30   {
  31    FD_SET(fd,rfds);
  32    if (*nfds < fd + 1) *nfds = fd + 1;
  33   }
  34 }
  35
  36 int trigger_pulled(rfds)
  37 fd_set *rfds;
  38 {
  39  if (fd != -1) if (FD_ISSET(fd,rfds)) return 1;
  40  return 0;
  41 }