NAME

       tickit_watch_process - invoke a callback when a child process terminates

SYNOPSIS

       #include <tickit.h>

       typedef struct {
         pid_t pid;
         int wstatus;
       } TickitProcessWatchInfo;

       typedef int TickitCallbackFn(Tickit *t, TickitEventflags flags,
           void *info, void *user);

       void *tickit_watch_process(Tickit *t, pid_t pid, TickitBindFlags flags,
           TickitCallbackFn *fn, void *user);

       Link with -ltickit.

DESCRIPTION

       tickit_watch_process()  registers  a  callback  function  to be invoked by the toplevel event loop when a
       child process terminates. A registered callback will be invoked by a running call to  tickit_run(3).  The
       info pointer will point to a structure containing the process PID and exit status.

       If  registered  with the TICKIT_BIND_FIRST flag, the callback will be inserted at the start of the queue,
       coming before others. If not, it is appended at the end.

       If cancelled by tickit_watch_cancel(3) the callback function is invoked with  just  the  TICKIT_EV_UNBIND
       flag if it had been registered with TICKIT_BIND_UNBIND.

RETURN VALUE

       tickit_watch_process() returns an opaque identifier pointer.

SEE ALSO

       tickit_new_stdio(3),                 tickit_watch_io(3),                tickit_watch_timer_after_msec(3),
       tickit_watch_timer_at_epoch(3),  tickit_watch_later(3),  tickit_watch_signal(3),  tickit_watch_cancel(3),
       tickit(7)

                                                                                         TICKIT_WATCH_PROCESS(3)