/* Cut out and return first \0-terminated string from world.queue and
* appropriately reduce world.queue_size. Return NULL if queue is empty.
* Superfluous \0 bytes after the string are also cut out. Should the queue
/* Cut out and return first \0-terminated string from world.queue and
* appropriately reduce world.queue_size. Return NULL if queue is empty.
* Superfluous \0 bytes after the string are also cut out. Should the queue
static char * get_message_from_queue();
/* Poll input file for world.queue input. Wait a few seconds until giving up;
static char * get_message_from_queue();
/* Poll input file for world.queue input. Wait a few seconds until giving up;