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Annotation of 43BSDTahoe/ucb/window/wwchild.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1983 Regents of the University of California.
                      3:  * All rights reserved.
                      4:  *
                      5:  * Redistribution and use in source and binary forms are permitted
                      6:  * provided that the above copyright notice and this paragraph are
                      7:  * duplicated in all such forms and that any documentation,
                      8:  * advertising materials, and other materials related to such
                      9:  * distribution and use acknowledge that the software was developed
                     10:  * by the University of California, Berkeley.  The name of the
                     11:  * University may not be used to endorse or promote products derived
                     12:  * from this software without specific prior written permission.
                     13:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
                     14:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
                     15:  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     16:  */
                     17: 
                     18: #ifndef lint
                     19: static char sccsid[] = "@(#)wwchild.c  3.9 (Berkeley) 6/29/88";
                     20: #endif /* not lint */
                     21: 
                     22: #include "ww.h"
                     23: #include <sys/types.h>
                     24: #include <sys/wait.h>
                     25: 
                     26: wwchild()
                     27: {
                     28:        extern errno;
                     29:        int olderrno;
                     30:        register struct ww **wp;
                     31:        union wait w;
                     32:        int pid;
                     33:        char collected = 0;
                     34: 
                     35:        olderrno = errno;
                     36:        while ((pid = wait3(&w, WNOHANG|WUNTRACED, (struct rusage *)0)) > 0) {
                     37:                for (wp = wwindex; wp < &wwindex[NWW]; wp++) {
                     38:                        if (*wp && (*wp)->ww_state == WWS_HASPROC
                     39:                            && (*wp)->ww_pid == pid) {
                     40:                                (*wp)->ww_state = WWS_DEAD;
                     41:                                collected = 1;
                     42:                                break;
                     43:                        }
                     44:                }
                     45:        }
                     46:        errno = olderrno;
                     47:        /* jump out of wwiomux when somebody dies */
                     48:        if (collected)
                     49:                wwsetintr();
                     50: }

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