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Annotation of 43BSD/games/sail/pl_1.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1983 Regents of the University of California.
                      3:  * All rights reserved.  The Berkeley software License Agreement
                      4:  * specifies the terms and conditions for redistribution.
                      5:  */
                      6: 
                      7: #ifndef lint
                      8: static char sccsid[] = "@(#)pl_1.c     5.1 (Berkeley) 5/29/85";
                      9: #endif not lint
                     10: 
                     11: #include "player.h"
                     12: #include <sys/types.h>
                     13: #include <sys/wait.h>
                     14: 
                     15: /*
                     16:  * If we get here before a ship is chosen, then ms == 0 and
                     17:  * we don't want to update the score file, or do any Write's either.
                     18:  * We can assume the sync file is already created and may need
                     19:  * to be removed.
                     20:  * Of course, we don't do any more Sync()'s if we got here
                     21:  * because of a Sync() failure.
                     22:  */
                     23: leave(conditions)
                     24: int conditions;
                     25: {
                     26:        (void) signal(SIGHUP, SIG_IGN);
                     27:        (void) signal(SIGINT, SIG_IGN);
                     28:        (void) signal(SIGQUIT, SIG_IGN);
                     29:        (void) signal(SIGALRM, SIG_IGN);
                     30:        (void) signal(SIGCHLD, SIG_IGN);
                     31: 
                     32:        if (done_curses) {
                     33:                Signal("It looks like you've had it!",
                     34:                        (struct ship *)0);
                     35:                switch (conditions) {
                     36:                case LEAVE_QUIT:
                     37:                        break;
                     38:                case LEAVE_CAPTURED:
                     39:                        Signal("Your ship was captured.",
                     40:                                (struct ship *)0);
                     41:                        break;
                     42:                case LEAVE_HURRICAN:
                     43:                        Signal("Hurricane!  All ships destroyed.",
                     44:                                (struct ship *)0);
                     45:                        break;
                     46:                case LEAVE_DRIVER:
                     47:                        Signal("The driver died.", (struct ship *)0);
                     48:                        break;
                     49:                case LEAVE_SYNC:
                     50:                        Signal("Synchronization error.", (struct ship *)0);
                     51:                        break;
                     52:                default:
                     53:                        Signal("A funny thing happened (%d).",
                     54:                                (struct ship *)0, conditions);
                     55:                }
                     56:        } else {
                     57:                switch (conditions) {
                     58:                case LEAVE_QUIT:
                     59:                        break;
                     60:                case LEAVE_DRIVER:
                     61:                        printf("The driver died.\n");
                     62:                        break;
                     63:                case LEAVE_FORK:
                     64:                        perror("fork");
                     65:                        break;
                     66:                case LEAVE_SYNC:
                     67:                        printf("Synchronization error\n.");
                     68:                        break;
                     69:                default:
                     70:                        printf("A funny thing happened (%d).\n",
                     71:                                conditions);
                     72:                }
                     73:        }
                     74: 
                     75:        if (ms != 0) {
                     76:                log(ms);
                     77:                if (conditions != LEAVE_SYNC) {
                     78:                        makesignal(ms, "Captain %s relinquishing.",
                     79:                                (struct ship *)0, mf->captain);
                     80:                        Write(W_END, ms, 0, 0, 0, 0, 0);
                     81:                        (void) Sync();
                     82:                }
                     83:        }
                     84:        sync_close(!hasdriver);
                     85:        cleanupscreen();
                     86:        exit(0);
                     87: }
                     88: 
                     89: choke()
                     90: {
                     91:        leave(LEAVE_QUIT);
                     92: }
                     93: 
                     94: child()
                     95: {
                     96:        union wait status;
                     97:        int pid;
                     98: 
                     99:        (void) signal(SIGCHLD, SIG_IGN);
                    100:        do {
                    101:                pid = wait3(&status, WNOHANG, (struct rusage *)0);
                    102:                if (pid < 0 || pid > 0 && !WIFSTOPPED(status))
                    103:                        hasdriver = 0;
                    104:        } while (pid > 0);
                    105:        (void) signal(SIGCHLD, child);
                    106: }

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