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/* ========================================================================
* Copyright 1988-2006 University of Washington
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
*
* ========================================================================
*/
/*
* Program: UNIX Grim PID Reaper -- wait() version
*
* Author: Mark Crispin
* Networks and Distributed Computing
* Computing & Communications
* University of Washington
* Administration Building, AG-44
* Seattle, WA 98195
* Internet: MRC@CAC.Washington.EDU
*
* Date: 30 November 1993
* Last Edited: 30 August 2006
*/
/* Grim PID reaper
* Accepts: process ID
* kill request flag
* status return value
*/
void grim_pid_reap_status (int pid,int killreq,void *status)
{
int r;
if (killreq) {
kill (pid,SIGHUP); /* kill if not already dead */
alarm (10); /* in case we get hosed */
while (((r = wait (NIL)) != pid) &&
((r > 0) || ((errno != ECHILD) && (errno != EINTR))));
alarm (0); /* cancel the alarm */
}
else while (((r = wait (status)) != pid) && ((r > 0) || (errno != ECHILD)));
}
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