3 * This file is part of PlomRogue. PlomRogue is licensed under the GPL version 3
4 * or any later version. For details on its copyright, license, and warranties,
5 * see the file NOTICE in the root directory of the PlomRogue source package.
7 * Communication of the server with the outside world and its client via input,
8 * output and world state files.
16 /* Return single \0-terminated string read from input queue (world.queue); or,
17 * if queue is empty and world.do_update is set, update world state file (and
18 * unset world.do_update) and write a single dot line to server out file, then
19 * read server in file for the next load of bytes to put onto the input queue.
21 * Reading the server in file may put many \0-terminated strings on the queue at
22 * once. Successive calls of io_round() will make these available one by one.
23 * Each such call cuts off bytes from the beginning of world.queue, up to and
24 * including the last \0 byte that is followed by a non-\0 byte or ends the
25 * queue. If the queue starts with a \0 byte, it and its \0 followers are cut
26 * and a NULL pointer is returned. Reading from the input file stops only when
27 * one or more byte were read and the next read returns 0 bytes. If the
28 * re-filled queue does not end in a \0 byte, a \0 byte is appended to it.
30 extern char * io_round();
32 /* Write to savefile (atomically) god commands (one per line) to rebuild the
33 * current world state.
35 extern void save_world();