Function getlock

outdated/sys/mac/macunix.c:21–40

}

void
getlock(void)
{
    int fd;
    int pid = getpid(); /* Process ID */

    Sprintf(gl.lock, "%d%s", getuid(), svp.plname);
    set_levelfile_name(gl.lock, 0);

    if ((fd = open(gl.lock, O_RDWR | O_EXCL | O_CREAT, LEVL_TYPE)) == -1) {
        raw_printf("Could not lock the game %s.", gl.lock);
        panic("Another game in progress?");
    }

    if (write(fd, (char *) &pid, sizeof(pid)) != sizeof(pid)) {
        raw_printf("Could not lock the game %s.", gl.lock);
        panic("Disk locked?");
    }
    close(fd);
}