/* * Copyright (c) 1983 Regents of the University of California. * All rights reserved. * * This code is derived from software contributed to Berkeley by * Edward Wang at The University of California, Berkeley. * * Redistribution and use in source and binary forms are permitted provided * that: (1) source distributions retain this entire copyright notice and * comment, and (2) distributions including binaries display the following * acknowledgement: ``This product includes software developed by the * University of California, Berkeley and its contributors'' in the * documentation or other materials provided with the distribution and in * all advertising materials mentioning features or use of this software. * Neither the name of the University nor the names of its contributors may * be used to endorse or promote products derived from this software without * specific prior written permission. * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. */ #ifndef lint static char sccsid[] = "@(#)wwchild.c 3.12 (Berkeley) 6/6/90"; #endif /* not lint */ #include "ww.h" #include <sys/wait.h> wwchild() { extern errno; int olderrno; register struct ww **wp; union wait w; int pid; char collected = 0; olderrno = errno; while ((pid = wait3(&w, WNOHANG|WUNTRACED, (struct rusage *)0)) > 0) { for (wp = wwindex; wp < &wwindex[NWW]; wp++) { if (*wp && (*wp)->ww_state == WWS_HASPROC && (*wp)->ww_pid == pid) { (*wp)->ww_state = WWS_DEAD; collected = 1; break; } } } errno = olderrno; /* jump out of wwiomux when somebody dies */ if (collected) wwsetintr(); }