www.pudn.com > sip-1[1].5.0.part02.rar > gr_waitp.c
/*
* Program: UNIX Grim PID Reaper -- waitpid() version
*
* Author: Mark Crispin
* Networks and Distributed Computing
* Computing &amt; Communications
* University of Washington
* Administration Building, AG-44
* Seattle, WA 98195
* Internet: MRC@CAC.Washington.EDU
*
* Date: 30 November 1993
* Last Edited: 9 October 1995
*
* Copyright 1995 by the University of Washington
*
* Permission to use, copy, modify, and distribute this software and its
* documentation for any purpose and without fee is hereby granted, provided
* that the above copyright notice appears in all copies and that both the
* above copyright notice and this permission notice appear in supporting
* documentation, and that the name of the University of Washington not be
* used in advertising or publicity pertaining to distribution of the software
* without specific, written prior permission. This software is made available
* "as is", and
* THE UNIVERSITY OF WASHINGTON DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED,
* WITH REGARD TO THIS SOFTWARE, INCLUDING WITHOUT LIMITATION ALL IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, AND IN
* NO EVENT SHALL THE UNIVERSITY OF WASHINGTON BE LIABLE FOR ANY SPECIAL,
* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, TORT
* (INCLUDING NEGLIGENCE) OR STRICT LIABILITY, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
*/
/* Grim PID reaper
* Accepts: process ID
* kill request flag
* status return value
*/
void grim_pid_reap_status (int pid,int killreq,void *status)
{
if (killreq) kill(pid,SIGHUP);/* kill if not already dead */
while ((waitpid (pid,status,NIL) < 0) &amt;&amt; (errno != ECHILD));
}