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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.165 by root, Fri Jan 12 22:09:22 2007 UTC vs.
Revision 1.402 by root, Mon Dec 17 07:03:32 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
8	use Storable;	8	use Socket;
		9	use EV;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
		13	use Storable ();
12		14
13	use Coro 3.3 ();	15	use Coro 4.32 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::EV;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::BDB;
		24	use Coro::Storable;
		25	use Coro::Util ();
19		26
		27	use JSON::XS 2.01 ();
		28	use BDB ();
20	use Data::Dumper;	29	use Data::Dumper;
21	use Digest::MD5;	30	use Digest::MD5;
22	use Fcntl;	31	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	32	use YAML::Syck ();
		33	use IO::AIO 2.51 ();
25	use Time::HiRes;	34	use Time::HiRes;
		35	use Compress::LZF;
		36	use Digest::MD5 ();
26		37
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	38	# configure various modules to our taste
28		39	#
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	40	$Storable::canonical = 1; # reduce rsync transfers
		41	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		42	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
30		43
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	44	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	45	$YAML::Syck::ImplicitUnicode = 1;
33		46
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	47	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		48
		49	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		50
36	our %COMMAND = ();	51	our %COMMAND = ();
37	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
38		53
39	our @EXTS = (); # list of extension package names	54	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	57	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	58	our %EXT_MAP = (); # pluggable maps
43		59
		60	our $RELOAD; # number of reloads so far
44	our @EVENT;	61	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		62
47	our $TICK = MAX_TIME * 1e-6;	63	our $CONFDIR = confdir;
		64	our $DATADIR = datadir;
		65	our $LIBDIR = "$DATADIR/ext";
		66	our $PODDIR = "$DATADIR/pod";
		67	our $MAPDIR = "$DATADIR/" . mapdir;
		68	our $LOCALDIR = localdir;
		69	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		70	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		71	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		72	our $RANDOMDIR = "$LOCALDIR/random";
		73	our $BDBDIR = "$LOCALDIR/db";
		74
		75	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48	our $TICK_WATCHER;	76	our $TICK_WATCHER;
		77	our $AIO_POLL_WATCHER;
		78	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
49	our $NEXT_TICK;	79	our $NEXT_TICK;
50	our $NOW;	80	our $USE_FSYNC = 1; # use fsync to write maps - default off
		81
		82	our $BDB_POLL_WATCHER;
		83	our $BDB_DEADLOCK_WATCHER;
		84	our $BDB_CHECKPOINT_WATCHER;
		85	our $BDB_TRICKLE_WATCHER;
		86	our $DB_ENV;
51		87
52	our %CFG;	88	our %CFG;
53		89
54	our $UPTIME; $UPTIME ||= time;	90	our $UPTIME; $UPTIME ||= time;
55	our $RUNTIME;	91	our $RUNTIME;
		92	our $NOW;
56		93
57	our %PLAYER; # all users	94	our (%PLAYER, %PLAYER_LOADING); # all users
58	our %MAP; # all maps	95	our (%MAP, %MAP_LOADING ); # all maps
59	our $LINK_MAP; # the special {link} map	96	our $LINK_MAP; # the special {link} map, which is always available
60	our $RANDOM_MAPS = cf::localdir . "/random";
61		97
62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	98	# used to convert map paths into valid unix filenames by replacing / by ∕
63	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	99	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		100
		101	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		102	our $LOADAVG; # same thing, but with alpha-smoothing
		103	our $tick_start; # for load detecting purposes
64		104
65	binmode STDOUT;	105	binmode STDOUT;
66	binmode STDERR;	106	binmode STDERR;
67		107
68	# read virtual server time, if available	108	# read virtual server time, if available
69	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	109	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
70	open my $fh, "<", cf::localdir . "/runtime"	110	open my $fh, "<", "$LOCALDIR/runtime"
71	or die "unable to read runtime file: $!";	111	or die "unable to read runtime file: $!";
72	$RUNTIME = <$fh> + 0.;	112	$RUNTIME = <$fh> + 0.;
73	}	113	}
74		114
75	mkdir cf::localdir;	115	mkdir $_
76	mkdir cf::localdir . "/" . cf::playerdir;	116	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
77	mkdir cf::localdir . "/" . cf::tmpdir;
78	mkdir cf::localdir . "/" . cf::uniquedir;
79	mkdir $RANDOM_MAPS;
80		117
81	# a special map that is always available
82	our $LINK_MAP;
83	our $EMERGENCY_POSITION;	118	our $EMERGENCY_POSITION;
		119
		120	sub cf::map::normalise;
84		121
85	#############################################################################	122	#############################################################################
86		123
87	=head2 GLOBAL VARIABLES	124	=head2 GLOBAL VARIABLES
88		125
…		…
95	=item $cf::RUNTIME	132	=item $cf::RUNTIME
96		133
97	The time this server has run, starts at 0 and is increased by $cf::TICK on	134	The time this server has run, starts at 0 and is increased by $cf::TICK on
98	every server tick.	135	every server tick.
99		136
100	=item $cf::LIBDIR	137	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		138	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		139	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
101		140
102	The perl library directory, where extensions and cf-specific modules can	141	Various directories - "/etc", read-only install directory, perl-library
103	be found. It will be added to C<@INC> automatically.	142	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		143	unique-items directory, player file directory, random maps directory and
		144	database environment.
104		145
105	=item $cf::NOW	146	=item $cf::NOW
106		147
107	The time of the last (current) server tick.	148	The time of the last (current) server tick.
108		149
109	=item $cf::TICK	150	=item $cf::TICK
110		151
111	The interval between server ticks, in seconds.	152	The interval between server ticks, in seconds.
112		153
		154	=item $cf::LOADAVG
		155
		156	The current CPU load on the server (alpha-smoothed), as a value between 0
		157	(none) and 1 (overloaded), indicating how much time is spent on processing
		158	objects per tick. Healthy values are < 0.5.
		159
		160	=item $cf::LOAD
		161
		162	The raw value load value from the last tick.
		163
113	=item %cf::CFG	164	=item %cf::CFG
114		165
115	Configuration for the server, loaded from C</etc/crossfire/config>, or	166	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
116	from wherever your confdir points to.	167	from wherever your confdir points to.
117		168
118	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	169	=item cf::wait_for_tick, cf::wait_for_tick_begin
119		170
120	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	171	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
121	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	172	returns directly I<after> the tick processing (and consequently, can only wake one process
122	processing has been done. Call C<< ->wait >> on them to maximise the	173	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
123	window of cpu time available, or simply to synchronise to the server tick.	174
		175	=item @cf::INVOKE_RESULTS
		176
		177	This array contains the results of the last C<invoke ()> call. When
		178	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		179	that call.
124		180
125	=back	181	=back
126		182
127	=cut	183	=cut
128		184
129	BEGIN {	185	BEGIN {
130	*CORE::GLOBAL::warn = sub {	186	*CORE::GLOBAL::warn = sub {
131	my $msg = join "", @_;	187	my $msg = join "", @_;
132	utf8::encode $msg;
133		188
134	$msg .= "\n"	189	$msg .= "\n"
135	unless $msg =~ /\n$/;	190	unless $msg =~ /\n$/;
		191
		192	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
136		193
137	LOG llevError, $msg;	194	LOG llevError, $msg;
138	};	195	};
139	}	196	}
140		197
141	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	198	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
142	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	199	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
143	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	200	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
144	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	201	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
145	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	202	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		203	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
146	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	204	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
147		205
148	# we bless all objects into (empty) derived classes to force a method lookup	206	# we bless all objects into (empty) derived classes to force a method lookup
149	# within the Safe compartment.	207	# within the Safe compartment.
150	for my $pkg (qw(	208	for my $pkg (qw(
151	cf::global cf::attachable	209	cf::global cf::attachable
…		…
156	)) {	214	)) {
157	no strict 'refs';	215	no strict 'refs';
158	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	216	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
159	}	217	}
160		218
161	$Event::DIED = sub {	219	$EV::DIED = sub {
162	warn "error in event callback: @_";	220	warn "error in event callback: @_";
163	};	221	};
		222
		223	#############################################################################
164		224
165	=head2 UTILITY FUNCTIONS	225	=head2 UTILITY FUNCTIONS
166		226
167	=over 4	227	=over 4
168		228
…		…
187	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	247	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
188	$d	248	$d
189	} || "[unable to dump $_[0]: '$@']";	249	} || "[unable to dump $_[0]: '$@']";
190	}	250	}
191		251
192	use JSON::Syck (); # TODO# replace by JSON::PC once working
193
194	=item $ref = cf::from_json $json	252	=item $ref = cf::decode_json $json
195		253
196	Converts a JSON string into the corresponding perl data structure.	254	Converts a JSON string into the corresponding perl data structure.
197		255
198	=cut
199
200	sub from_json($) {
201	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
202	JSON::Syck::Load $_[0]
203	}
204
205	=item $json = cf::to_json $ref	256	=item $json = cf::encode_json $ref
206		257
207	Converts a perl data structure into its JSON representation.	258	Converts a perl data structure into its JSON representation.
208		259
209	=cut	260	=cut
210		261
211	sub to_json($) {	262	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
212	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	263
213	JSON::Syck::Dump $_[0]	264	sub encode_json($) { $json_coder->encode ($_[0]) }
214	}	265	sub decode_json($) { $json_coder->decode ($_[0]) }
215		266
216	=item cf::lock_wait $string	267	=item cf::lock_wait $string
217		268
218	Wait until the given lock is available. See cf::lock_acquire.	269	Wait until the given lock is available. See cf::lock_acquire.
219		270
…		…
222	Wait until the given lock is available and then acquires it and returns	273	Wait until the given lock is available and then acquires it and returns
223	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	274	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
224	for example when the coroutine gets canceled), the lock is automatically	275	for example when the coroutine gets canceled), the lock is automatically
225	returned.	276	returned.
226		277
		278	Locks are *not* recursive, locking from the same coro twice results in a
		279	deadlocked coro.
		280
227	Lock names should begin with a unique identifier (for example, cf::map::find	281	Lock names should begin with a unique identifier (for example, cf::map::find
228	uses map_find and cf::map::load uses map_load).	282	uses map_find and cf::map::load uses map_load).
229		283
		284	=item $locked = cf::lock_active $string
		285
		286	Return true if the lock is currently active, i.e. somebody has locked it.
		287
230	=cut	288	=cut
231		289
232	our %LOCK;	290	our %LOCK;
		291	our %LOCKER;#d#
233		292
234	sub lock_wait($) {	293	sub lock_wait($) {
235	my ($key) = @_;	294	my ($key) = @_;
		295
		296	if ($LOCKER{$key} == $Coro::current) {#d#
		297	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		298	return;#d#
		299	}#d#
236		300
237	# wait for lock, if any	301	# wait for lock, if any
238	while ($LOCK{$key}) {	302	while ($LOCK{$key}) {
239	push @{ $LOCK{$key} }, $Coro::current;	303	push @{ $LOCK{$key} }, $Coro::current;
240	Coro::schedule;	304	Coro::schedule;
…		…
246		310
247	# wait, to be sure we are not locked	311	# wait, to be sure we are not locked
248	lock_wait $key;	312	lock_wait $key;
249		313
250	$LOCK{$key} = [];	314	$LOCK{$key} = [];
		315	$LOCKER{$key} = $Coro::current;#d#
251		316
252	Coro::guard {	317	Coro::guard {
		318	delete $LOCKER{$key};#d#
253	# wake up all waiters, to be on the safe side	319	# wake up all waiters, to be on the safe side
254	$_->ready for @{ delete $LOCK{$key} };	320	$_->ready for @{ delete $LOCK{$key} };
255	}	321	}
256	}	322	}
257		323
		324	sub lock_active($) {
		325	my ($key) = @_;
		326
		327	! ! $LOCK{$key}
		328	}
		329
258	sub freeze_mainloop {	330	sub freeze_mainloop {
259	return unless $TICK_WATCHER->is_active;	331	return unless $TICK_WATCHER->is_active;
260		332
261	my $guard = Coro::guard { $TICK_WATCHER->start };	333	my $guard = Coro::guard {
		334	$TICK_WATCHER->start;
		335	};
262	$TICK_WATCHER->stop;	336	$TICK_WATCHER->stop;
263	$guard	337	$guard
		338	}
		339
		340	=item cf::periodic $interval, $cb
		341
		342	Like EV::periodic, but randomly selects a starting point so that the actions
		343	get spread over timer.
		344
		345	=cut
		346
		347	sub periodic($$) {
		348	my ($interval, $cb) = @_;
		349
		350	my $start = rand List::Util::min 180, $interval;
		351
		352	EV::periodic $start, $interval, 0, $cb
		353	}
		354
		355	=item cf::get_slot $time[, $priority[, $name]]
		356
		357	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		358	This call blocks and returns only when you have at least C<$time> seconds
		359	of cpu time till the next tick. The slot is only valid till the next cede.
		360
		361	The optional C<$name> can be used to identify the job to run. It might be
		362	used for statistical purposes and should identify the same time-class.
		363
		364	Useful for short background jobs.
		365
		366	=cut
		367
		368	our @SLOT_QUEUE;
		369	our $SLOT_QUEUE;
		370
		371	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		372	$SLOT_QUEUE = Coro::async {
		373	$Coro::current->desc ("timeslot manager");
		374
		375	my $signal = new Coro::Signal;
		376
		377	while () {
		378	next_job:
		379	my $avail = cf::till_tick;
		380	if ($avail > 0.01) {
		381	for (0 .. $#SLOT_QUEUE) {
		382	if ($SLOT_QUEUE[$_][0] < $avail) {
		383	my $job = splice @SLOT_QUEUE, $_, 1, ();
		384	$job->[2]->send;
		385	Coro::cede;
		386	goto next_job;
		387	}
		388	}
		389	}
		390
		391	if (@SLOT_QUEUE) {
		392	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		393	push @cf::WAIT_FOR_TICK, $signal;
		394	$signal->wait;
		395	} else {
		396	Coro::schedule;
		397	}
		398	}
		399	};
		400
		401	sub get_slot($;$$) {
		402	my ($time, $pri, $name) = @_;
		403
		404	$time = $TICK * .6 if $time > $TICK * .6;
		405	my $sig = new Coro::Signal;
		406
		407	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		408	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		409	$SLOT_QUEUE->ready;
		410	$sig->wait;
264	}	411	}
265		412
266	=item cf::async { BLOCK }	413	=item cf::async { BLOCK }
267		414
268	Currently the same as Coro::async_pool, meaning you cannot use	415	Currently the same as Coro::async_pool, meaning you cannot use
…		…
273		420
274	BEGIN { *async = \&Coro::async_pool }	421	BEGIN { *async = \&Coro::async_pool }
275		422
276	=item cf::sync_job { BLOCK }	423	=item cf::sync_job { BLOCK }
277		424
278	The design of crossfire+ requires that the main coro ($Coro::main) is	425	The design of Deliantra requires that the main coroutine ($Coro::main)
279	always able to handle events or runnable, as crossfire+ is only partly	426	is always able to handle events or runnable, as Deliantra is only
280	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	427	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		428	acceptable.
281		429
282	If it must be done, put the blocking parts into C<sync_job>. This will run	430	If it must be done, put the blocking parts into C<sync_job>. This will run
283	the given BLOCK in another coroutine while waiting for the result. The	431	the given BLOCK in another coroutine while waiting for the result. The
284	server will be frozen during this time, so the block should either finish	432	server will be frozen during this time, so the block should either finish
285	fast or be very important.	433	fast or be very important.
…		…
288		436
289	sub sync_job(&) {	437	sub sync_job(&) {
290	my ($job) = @_;	438	my ($job) = @_;
291		439
292	if ($Coro::current == $Coro::main) {	440	if ($Coro::current == $Coro::main) {
		441	my $time = EV::time;
		442
293	# this is the main coro, too bad, we have to block	443	# this is the main coro, too bad, we have to block
294	# till the operation succeeds, freezing the server :/	444	# till the operation succeeds, freezing the server :/
295		445
		446	LOG llevError, Carp::longmess "sync job";#d#
		447
296	# TODO: use suspend/resume instead	448	# TODO: use suspend/resume instead
297	# (but this is cancel-safe)	449	# (but this is cancel-safe)
298	my $freeze_guard = freeze_mainloop;	450	my $freeze_guard = freeze_mainloop;
299		451
300	my $busy = 1;	452	my $busy = 1;
301	my @res;	453	my @res;
302		454
303	(async {	455	(async {
		456	$Coro::current->desc ("sync job coro");
304	@res = eval { $job->() };	457	@res = eval { $job->() };
305	warn $@ if $@;	458	warn $@ if $@;
306	undef $busy;	459	undef $busy;
307	})->prio (Coro::PRIO_MAX);	460	})->prio (Coro::PRIO_MAX);
308		461
309	while ($busy) {	462	while ($busy) {
310	Coro::cede or Event::one_event;	463	if (Coro::nready) {
		464	Coro::cede_notself;
		465	} else {
		466	EV::loop EV::LOOP_ONESHOT;
311	}	467	}
		468	}
		469
		470	$time = EV::time - $time;
		471
		472	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		473	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		474
		475	$tick_start += $time; # do not account sync jobs to server load
312		476
313	wantarray ? @res : $res[0]	477	wantarray ? @res : $res[0]
314	} else {	478	} else {
315	# we are in another coroutine, how wonderful, everything just works	479	# we are in another coroutine, how wonderful, everything just works
316		480
…		…
336	$EXT_CORO{$coro+0} = $coro;	500	$EXT_CORO{$coro+0} = $coro;
337		501
338	$coro	502	$coro
339	}	503	}
340		504
341	sub write_runtime {	505	=item fork_call { }, $args
342	my $runtime = cf::localdir . "/runtime";
343		506
344	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	507	Executes the given code block with the given arguments in a seperate
345	or return;	508	process, returning the results. Everything must be serialisable with
		509	Coro::Storable. May, of course, block. Note that the executed sub may
		510	never block itself or use any form of event handling.
346		511
347	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	512	=cut
348	(aio_write $fh, 0, (length $value), $value, 0) <= 0
349	and return;
350		513
351	aio_fsync $fh	514	sub fork_call(&@) {
352	and return;	515	my ($cb, @args) = @_;
353		516
354	close $fh	517	# we seemingly have to make a local copy of the whole thing,
355	or return;	518	# otherwise perl prematurely frees the stuff :/
		519	# TODO: investigate and fix (likely this will be rather laborious)
356		520
357	aio_rename "$runtime~", $runtime	521	my @res = Coro::Util::fork_eval {
358	and return;	522	reset_signals;
		523	&$cb
		524	}, @args;
359		525
		526	wantarray ? @res : $res[-1]
		527	}
		528
		529	=item $value = cf::db_get $family => $key
		530
		531	Returns a single value from the environment database.
		532
		533	=item cf::db_put $family => $key => $value
		534
		535	Stores the given C<$value> in the family. It can currently store binary
		536	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		537
		538	=item $db = cf::db_table "name"
		539
		540	Create and/or open a new database table. The string must not be "db" and must be unique
		541	within each server.
		542
		543	=cut
		544
		545	sub db_table($) {
		546	my ($name) = @_;
		547	my $db = BDB::db_create $DB_ENV;
		548
		549	eval {
		550	$db->set_flags (BDB::CHKSUM);
		551
		552	utf8::encode $name;
		553	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		554	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		555	cf::cleanup "db_open(db): $!" if $!;
		556	};
		557	cf::cleanup "db_open(db): $@" if $@;
		558
		559	$db
		560	}
		561
		562	our $DB;
		563
		564	sub db_init {
		565	cf::sync_job {
		566	$DB ||= db_table "db";
		567	};
		568	}
		569
		570	sub db_get($$) {
		571	my $key = "$_[0]/$_[1]";
		572
		573	cf::sync_job {
		574	BDB::db_get $DB, undef, $key, my $data;
		575
		576	$! ? ()
		577	: $data
360	1	578	}
		579	}
		580
		581	sub db_put($$$) {
		582	BDB::dbreq_pri 4;
		583	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		584	}
		585
		586	=item cf::cache $id => [$paths...], $processversion => $process
		587
		588	Generic caching function that returns the value of the resource $id,
		589	caching and regenerating as required.
		590
		591	This function can block.
		592
		593	=cut
		594
		595	sub cache {
		596	my ($id, $src, $processversion, $process) = @_;
		597
		598	my $meta =
		599	join "\x00",
		600	$processversion,
		601	map {
		602	aio_stat $_
		603	and Carp::croak "$_: $!";
		604
		605	($_, (stat _)[7,9])
		606	} @$src;
		607
		608	my $dbmeta = db_get cache => "$id/meta";
		609	if ($dbmeta ne $meta) {
		610	# changed, we may need to process
		611
		612	my @data;
		613	my $md5;
		614
		615	for (0 .. $#$src) {
		616	0 <= aio_load $src->[$_], $data[$_]
		617	or Carp::croak "$src->[$_]: $!";
		618	}
		619
		620	# if processing is expensive, check
		621	# checksum first
		622	if (1) {
		623	$md5 =
		624	join "\x00",
		625	$processversion,
		626	map {
		627	cf::cede_to_tick;
		628	($src->[$_], Digest::MD5::md5_hex $data[$_])
		629	} 0.. $#$src;
		630
		631
		632	my $dbmd5 = db_get cache => "$id/md5";
		633	if ($dbmd5 eq $md5) {
		634	db_put cache => "$id/meta", $meta;
		635
		636	return db_get cache => "$id/data";
		637	}
		638	}
		639
		640	my $t1 = Time::HiRes::time;
		641	my $data = $process->(\@data);
		642	my $t2 = Time::HiRes::time;
		643
		644	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		645
		646	db_put cache => "$id/data", $data;
		647	db_put cache => "$id/md5" , $md5;
		648	db_put cache => "$id/meta", $meta;
		649
		650	return $data;
		651	}
		652
		653	db_get cache => "$id/data"
		654	}
		655
		656	=item cf::datalog type => key => value, ...
		657
		658	Log a datalog packet of the given type with the given key-value pairs.
		659
		660	=cut
		661
		662	sub datalog($@) {
		663	my ($type, %kv) = @_;
		664	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
361	}	665	}
362		666
363	=back	667	=back
364		668
365	=cut	669	=cut
366
367	#############################################################################
368
369	package cf::path;
370
371	use overload
372	'""' => \&as_string;
373
374	# used to convert map paths into valid unix filenames by repalcing / by ∕
375	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
376
377	sub register {
378	my ($pkg, $prefix) = @_;
379
380	$EXT_MAP{$prefix} = $pkg;
381	}
382
383	sub new {
384	my ($class, $path, $base) = @_;
385
386	return $path if ref $path;
387
388	my $self = {};
389
390	# {... are special paths that are not being touched
391	# ?xxx/... are special absolute paths
392	# ?random/... random maps
393	# /! non-realised random map exit
394	# /... normal maps
395	# ~/... per-player maps without a specific player (DO NOT USE)
396	# ~user/... per-player map of a specific user
397
398	$path =~ s/$PATH_SEP/\//go;
399
400	if ($path =~ /^{/) {
401	# fine as it is
402	} else {
403	if ($path =~ s{^~([^/]+)?}{}) {
404	# ~user
405	$self->{user_rel} = 1;
406
407	if (defined $1) {
408	$self->{user} = $1;
409	} elsif ($base =~ m{^~([^/]+)/}) {
410	$self->{user} = $1;
411	} else {
412	warn "cannot resolve user-relative path without user <$path,$base>\n";
413	}
414	} elsif ($path =~ s{^\?([^/]+)/}{}) {
415	# ?...
416	$self->{ext} = $1;
417	if (my $ext = $EXT_MAP{$1}) {
418	bless $self, $ext;
419	}
420	} elsif ($path =~ /^\//) {
421	# /...
422	# already absolute
423	} else {
424	# relative
425	$base =~ s{[^/]+/?$}{};
426	return $class->new ("$base/$path");
427	}
428
429	for ($path) {
430	redo if s{/\.?/}{/};
431	redo if s{/[^/]+/\.\./}{/};
432	}
433	}
434
435	$self->{path} = $path;
436
437	if ("HASH" eq ref $self) {
438	bless $self, $class;
439	} else {
440	$self->init;
441	}
442
443	for my $ext (values %EXT_MAP) {
444	if (my $subst = $ext->substitute ($self)) {
445	return $subst;
446	}
447	}
448
449	$self
450	}
451
452	sub init {
453	# nop
454	}
455
456	sub substitute {
457	()
458	}
459
460	# the name / primary key / in-game path
461	sub as_string {
462	my ($self) = @_;
463
464	$self->{user_rel} ? "~$self->{user}$self->{path}"
465	: $self->{ext} ? "?$self->{ext}/$self->{path}"
466	: $self->{path}
467	}
468
469	# the displayed name, this is a one way mapping
470	sub visible_name {
471	&as_string
472	}
473
474	# escape the /'s in the path
475	sub _escaped_path {
476	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
477
478	$path
479	}
480
481	# the original (read-only) location
482	sub load_path {
483	my ($self) = @_;
484
485	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
486	}
487
488	# the temporary/swap location
489	sub save_path {
490	my ($self) = @_;
491
492	$self->{user_rel}
493	? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
494	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
495	}
496
497	# the unique path, undef == no special unique path
498	sub uniq_path {
499	my ($self) = @_;
500
501	$self->{user_rel} || $self->{ext}
502	? undef
503	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
504	}
505
506	sub customise_for {
507	my ($self, $map, $ob) = @_;
508
509	if ($map->per_player) {
510	return cf::map::find ("~" . $ob->name . "/" . $map->{path}{path});
511	}
512
513	$map
514	}
515
516	# this is somewhat ugly, but style maps do need special treatment
517	sub is_style_map {
518	$_[0]{path} =~ m{^/styles/}
519	}
520
521	sub load_orig {
522	my ($self) = @_;
523
524	&cf::map::load_map_header ($self->load_path)
525	}
526
527	sub load_temp {
528	my ($self) = @_;
529
530	&cf::map::load_map_header ($self->save_path)
531	}
532
533	sub unlink_save {
534	my ($self) = @_;
535
536	utf8::encode (my $save = $self->save_path);
537	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;
538	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";
539	}
540
541	package cf;
542		670
543	#############################################################################	671	#############################################################################
544		672
545	=head2 ATTACHABLE OBJECTS	673	=head2 ATTACHABLE OBJECTS
546		674
…		…
548	attach callbacks/event handlers (a collection of which is called an "attachment")	676	attach callbacks/event handlers (a collection of which is called an "attachment")
549	to it. All such attachable objects support the following methods.	677	to it. All such attachable objects support the following methods.
550		678
551	In the following description, CLASS can be any of C<global>, C<object>	679	In the following description, CLASS can be any of C<global>, C<object>
552	C<player>, C<client> or C<map> (i.e. the attachable objects in	680	C<player>, C<client> or C<map> (i.e. the attachable objects in
553	crossfire+).	681	Deliantra).
554		682
555	=over 4	683	=over 4
556		684
557	=item $attachable->attach ($attachment, key => $value...)	685	=item $attachable->attach ($attachment, key => $value...)
558		686
…		…
672	our @CB_TYPE = (); # registry for type (cf-object class) based events	800	our @CB_TYPE = (); # registry for type (cf-object class) based events
673	our @CB_MAP = ();	801	our @CB_MAP = ();
674		802
675	my %attachment;	803	my %attachment;
676		804
		805	sub cf::attachable::thawer_merge {
		806	# simply override everything except _meta
		807	local $_[0]{_meta};
		808	%{$_[0]} = %{$_[1]};
		809	}
		810
677	sub _attach_cb($$$$) {	811	sub _attach_cb($$$$) {
678	my ($registry, $event, $prio, $cb) = @_;	812	my ($registry, $event, $prio, $cb) = @_;
679		813
680	use sort 'stable';	814	use sort 'stable';
681		815
…		…
715	$registry = $CB_TYPE[$object_type] ||= [];	849	$registry = $CB_TYPE[$object_type] ||= [];
716		850
717	} elsif ($type eq "subtype") {	851	} elsif ($type eq "subtype") {
718	defined $object_type or Carp::croak "subtype specified without type";	852	defined $object_type or Carp::croak "subtype specified without type";
719	my $object_subtype = shift @arg;	853	my $object_subtype = shift @arg;
720	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	854	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
721		855
722	} elsif ($type eq "package") {	856	} elsif ($type eq "package") {
723	my $pkg = shift @arg;	857	my $pkg = shift @arg;
724		858
725	while (my ($name, $id) = each %cb_id) {	859	while (my ($name, $id) = each %cb_id) {
…		…
754	_attach $registry, $klass, @attach;	888	_attach $registry, $klass, @attach;
755	}	889	}
756		890
757	$obj->{$name} = \%arg;	891	$obj->{$name} = \%arg;
758	} else {	892	} else {
759	warn "object uses attachment '$name' that is not available, postponing.\n";	893	warn "object uses attachment '$name' which is not available, postponing.\n";
760	}	894	}
761		895
762	$obj->{_attachment}{$name} = undef;	896	$obj->{_attachment}{$name} = undef;
763	}	897	}
764		898
…		…
766	if (ref $_[0]) {	900	if (ref $_[0]) {
767	_object_attach @_;	901	_object_attach @_;
768	} else {	902	} else {
769	_attach shift->_attach_registry, @_;	903	_attach shift->_attach_registry, @_;
770	}	904	}
		905	_recalc_want;
771	};	906	};
772		907
773	# all those should be optimised	908	# all those should be optimised
774	sub cf::attachable::detach {	909	sub cf::attachable::detach {
775	my ($obj, $name) = @_;	910	my ($obj, $name) = @_;
…		…
778	delete $obj->{_attachment}{$name};	913	delete $obj->{_attachment}{$name};
779	reattach ($obj);	914	reattach ($obj);
780	} else {	915	} else {
781	Carp::croak "cannot, currently, detach class attachments";	916	Carp::croak "cannot, currently, detach class attachments";
782	}	917	}
		918	_recalc_want;
783	};	919	};
784		920
785	sub cf::attachable::attached {	921	sub cf::attachable::attached {
786	my ($obj, $name) = @_;	922	my ($obj, $name) = @_;
787		923
…		…
802	";	938	";
803	die if $@;	939	die if $@;
804	}	940	}
805		941
806	our $override;	942	our $override;
807	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	943	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
808		944
809	sub override {	945	sub override {
810	$override = 1;	946	$override = 1;
811	@invoke_results = ();	947	@INVOKE_RESULTS = (@_);
812	}	948	}
813		949
814	sub do_invoke {	950	sub do_invoke {
815	my $event = shift;	951	my $event = shift;
816	my $callbacks = shift;	952	my $callbacks = shift;
817		953
818	@invoke_results = ();	954	@INVOKE_RESULTS = ();
819		955
820	local $override;	956	local $override;
821		957
822	for (@$callbacks) {	958	for (@$callbacks) {
823	eval { &{$_->[1]} };	959	eval { &{$_->[1]} };
…		…
840		976
841	Generate an object-specific event with the given arguments.	977	Generate an object-specific event with the given arguments.
842		978
843	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	979	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
844	removed in future versions), and there is no public API to access override	980	removed in future versions), and there is no public API to access override
845	results (if you must, access C<@cf::invoke_results> directly).	981	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
846		982
847	=back	983	=back
848		984
849	=cut	985	=cut
850		986
851	#############################################################################	987	#############################################################################
852	# object support	988	# object support
		989
		990	sub _object_equal($$);
		991	sub _object_equal($$) {
		992	my ($a, $b) = @_;
		993
		994	return 0 unless (ref $a) eq (ref $b);
		995
		996	if ("HASH" eq ref $a) {
		997	my @ka = keys %$a;
		998	my @kb = keys %$b;
		999
		1000	return 0 if @ka != @kb;
		1001
		1002	for (0 .. $#ka) {
		1003	return 0 unless $ka[$_] eq $kb[$_];
		1004	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1005	}
		1006
		1007	} elsif ("ARRAY" eq ref $a) {
		1008
		1009	return 0 if @$a != @$b;
		1010
		1011	for (0 .. $#$a) {
		1012	return 0 unless _object_equal $a->[$_], $b->[$_];
		1013	}
		1014
		1015	} elsif ($a ne $b) {
		1016	return 0;
		1017	}
		1018
		1019	1
		1020	}
		1021
		1022	our $SLOW_MERGES;#d#
		1023	sub _can_merge {
		1024	my ($ob1, $ob2) = @_;
		1025
		1026	++$SLOW_MERGES;#d#
		1027
		1028	# we do the slow way here
		1029	return _object_equal $ob1, $ob2
		1030	}
853		1031
854	sub reattach {	1032	sub reattach {
855	# basically do the same as instantiate, without calling instantiate	1033	# basically do the same as instantiate, without calling instantiate
856	my ($obj) = @_;	1034	my ($obj) = @_;
		1035
		1036	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
857		1037
858	my $registry = $obj->registry;	1038	my $registry = $obj->registry;
859		1039
860	@$registry = ();	1040	@$registry = ();
861		1041
…		…
876	cf::attachable->attach (	1056	cf::attachable->attach (
877	prio => -1000000,	1057	prio => -1000000,
878	on_instantiate => sub {	1058	on_instantiate => sub {
879	my ($obj, $data) = @_;	1059	my ($obj, $data) = @_;
880		1060
881	$data = from_json $data;	1061	$data = decode_json $data;
882		1062
883	for (@$data) {	1063	for (@$data) {
884	my ($name, $args) = @$_;	1064	my ($name, $args) = @$_;
885		1065
886	$obj->attach ($name, %{$args || {} });	1066	$obj->attach ($name, %{$args || {} });
…		…
902	sub object_freezer_save {	1082	sub object_freezer_save {
903	my ($filename, $rdata, $objs) = @_;	1083	my ($filename, $rdata, $objs) = @_;
904		1084
905	sync_job {	1085	sync_job {
906	if (length $$rdata) {	1086	if (length $$rdata) {
		1087	utf8::decode (my $decname = $filename);
907	warn sprintf "saving %s (%d,%d)\n",	1088	warn sprintf "saving %s (%d,%d)\n",
908	$filename, length $$rdata, scalar @$objs;	1089	$decname, length $$rdata, scalar @$objs;
909		1090
910	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1091	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
911	chmod SAVE_MODE, $fh;	1092	chmod SAVE_MODE, $fh;
912	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1093	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
913	aio_fsync $fh;	1094	aio_fsync $fh if $cf::USE_FSYNC;
914	close $fh;	1095	close $fh;
915		1096
916	if (@$objs) {	1097	if (@$objs) {
917	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1098	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
918	chmod SAVE_MODE, $fh;	1099	chmod SAVE_MODE, $fh;
919	my $data = Storable::nfreeze { version => 1, objs => $objs };	1100	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
920	aio_write $fh, 0, (length $data), $data, 0;	1101	aio_write $fh, 0, (length $data), $data, 0;
921	aio_fsync $fh;	1102	aio_fsync $fh if $cf::USE_FSYNC;
922	close $fh;	1103	close $fh;
923	aio_rename "$filename.pst~", "$filename.pst";	1104	aio_rename "$filename.pst~", "$filename.pst";
924	}	1105	}
925	} else {	1106	} else {
926	aio_unlink "$filename.pst";	1107	aio_unlink "$filename.pst";
…		…
932	}	1113	}
933	} else {	1114	} else {
934	aio_unlink $filename;	1115	aio_unlink $filename;
935	aio_unlink "$filename.pst";	1116	aio_unlink "$filename.pst";
936	}	1117	}
937	}	1118	};
938	}	1119	}
939		1120
940	sub object_freezer_as_string {	1121	sub object_freezer_as_string {
941	my ($rdata, $objs) = @_;	1122	my ($rdata, $objs) = @_;
942		1123
…		…
954	or return;	1135	or return;
955		1136
956	unless (aio_stat "$filename.pst") {	1137	unless (aio_stat "$filename.pst") {
957	(aio_load "$filename.pst", $av) >= 0	1138	(aio_load "$filename.pst", $av) >= 0
958	or return;	1139	or return;
		1140
959	$av = eval { (Storable::thaw $av)->{objs} };	1141	my $st = eval { Coro::Storable::thaw $av };
		1142	$av = $st->{objs};
960	}	1143	}
961		1144
		1145	utf8::decode (my $decname = $filename);
962	warn sprintf "loading %s (%d)\n",	1146	warn sprintf "loading %s (%d,%d)\n",
963	$filename, length $data, scalar @{$av || []};#d#	1147	$decname, length $data, scalar @{$av || []};
		1148
964	return ($data, $av);	1149	($data, $av)
965	}	1150	}
		1151
		1152	=head2 COMMAND CALLBACKS
		1153
		1154	=over 4
		1155
		1156	=cut
966		1157
967	#############################################################################	1158	#############################################################################
968	# command handling &c	1159	# command handling &c
969		1160
970	=item cf::register_command $name => \&callback($ob,$args);	1161	=item cf::register_command $name => \&callback($ob,$args);
…		…
983	push @{ $COMMAND{$name} }, [$caller, $cb];	1174	push @{ $COMMAND{$name} }, [$caller, $cb];
984	}	1175	}
985		1176
986	=item cf::register_extcmd $name => \&callback($pl,$packet);	1177	=item cf::register_extcmd $name => \&callback($pl,$packet);
987		1178
988	Register a callbackf ro execution when the client sends an extcmd packet.	1179	Register a callback for execution when the client sends an (synchronous)
		1180	extcmd packet. Ext commands will be processed in the order they are
		1181	received by the server, like other user commands. The first argument is
		1182	the logged-in player. Ext commands can only be processed after a player
		1183	has logged in successfully.
989		1184
990	If the callback returns something, it is sent back as if reply was being	1185	If the callback returns something, it is sent back as if reply was being
991	called.	1186	called.
992		1187
		1188	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1189
		1190	Register a callback for execution when the client sends an (asynchronous)
		1191	exticmd packet. Exti commands are processed by the server as soon as they
		1192	are received, i.e. out of order w.r.t. other commands. The first argument
		1193	is a client socket. Exti commands can be received anytime, even before
		1194	log-in.
		1195
		1196	If the callback returns something, it is sent back as if reply was being
		1197	called.
		1198
993	=cut	1199	=cut
994		1200
995	sub register_extcmd {	1201	sub register_extcmd {
996	my ($name, $cb) = @_;	1202	my ($name, $cb) = @_;
997		1203
998	$EXTCMD{$name} = $cb;	1204	$EXTCMD{$name} = $cb;
		1205	}
		1206
		1207	sub register_exticmd {
		1208	my ($name, $cb) = @_;
		1209
		1210	$EXTICMD{$name} = $cb;
999	}	1211	}
1000		1212
1001	cf::player->attach (	1213	cf::player->attach (
1002	on_command => sub {	1214	on_command => sub {
1003	my ($pl, $name, $params) = @_;	1215	my ($pl, $name, $params) = @_;
…		…
1012	cf::override;	1224	cf::override;
1013	},	1225	},
1014	on_extcmd => sub {	1226	on_extcmd => sub {
1015	my ($pl, $buf) = @_;	1227	my ($pl, $buf) = @_;
1016		1228
1017	my $msg = eval { from_json $buf };	1229	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
1018		1230
1019	if (ref $msg) {	1231	if (ref $msg) {
		1232	my ($type, $reply, @payload) =
		1233	"ARRAY" eq ref $msg
		1234	? @$msg
		1235	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1236
		1237	my @reply;
		1238
1020	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1239	if (my $cb = $EXTCMD{$type}) {
1021	if (my %reply = $cb->($pl, $msg)) {	1240	@reply = $cb->($pl, @payload);
1022	$pl->ext_reply ($msg->{msgid}, %reply);
1023	}
1024	}	1241	}
		1242
		1243	$pl->ext_reply ($reply, @reply)
		1244	if $reply;
		1245
1025	} else {	1246	} else {
1026	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1247	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
1027	}	1248	}
1028		1249
1029	cf::override;	1250	cf::override;
1030	},	1251	},
1031	);	1252	);
1032		1253
1033	sub load_extension {
1034	my ($path) = @_;
1035
1036	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
1037	my $base = $1;
1038	my $pkg = $1;
1039	$pkg =~ s/[^[:word:]]/_/g;
1040	$pkg = "ext::$pkg";
1041
1042	warn "... loading '$path' into '$pkg'\n";
1043
1044	open my $fh, "<:utf8", $path
1045	or die "$path: $!";
1046
1047	my $source =
1048	"package $pkg; use strict; use utf8;\n"
1049	. "#line 1 \"$path\"\n{\n"
1050	. (do { local $/; <$fh> })
1051	. "\n};\n1";
1052
1053	eval $source
1054	or die $@ ? "$path: $@\n"
1055	: "extension disabled.\n";
1056
1057	push @EXTS, $pkg;
1058	}
1059
1060	sub load_extensions {	1254	sub load_extensions {
		1255	cf::sync_job {
		1256	my %todo;
		1257
1061	for my $ext (<$LIBDIR/*.ext>) {	1258	for my $path (<$LIBDIR/*.ext>) {
1062	next unless -r $ext;	1259	next unless -r $path;
1063	eval {	1260
1064	load_extension $ext;	1261	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1262	my $base = $1;
		1263	my $pkg = $1;
		1264	$pkg =~ s/[^[:word:]]/_/g;
		1265	$pkg = "ext::$pkg";
		1266
		1267	open my $fh, "<:utf8", $path
		1268	or die "$path: $!";
		1269
		1270	my $source = do { local $/; <$fh> };
		1271
		1272	my %ext = (
		1273	path => $path,
		1274	base => $base,
		1275	pkg => $pkg,
		1276	);
		1277
		1278	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1279	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1280
		1281	$ext{source} =
		1282	"package $pkg; use strict; use utf8;\n"
		1283	. "#line 1 \"$path\"\n{\n"
		1284	. $source
		1285	. "\n};\n1";
		1286
		1287	$todo{$base} = \%ext;
		1288	}
		1289
		1290	my %done;
		1291	while (%todo) {
		1292	my $progress;
		1293
		1294	while (my ($k, $v) = each %todo) {
		1295	for (split /,\s*/, $v->{meta}{depends}) {
		1296	goto skip
		1297	unless exists $done{$_};
		1298	}
		1299
		1300	warn "... loading '$k' into '$v->{pkg}'\n";
		1301
		1302	unless (eval $v->{source}) {
		1303	my $msg = $@ ? "$v->{path}: $@\n"
		1304	: "$v->{base}: extension inactive.\n";
		1305
		1306	if (exists $v->{meta}{mandatory}) {
		1307	warn $msg;
		1308	warn "mandatory extension failed to load, exiting.\n";
		1309	exit 1;
		1310	}
		1311
		1312	warn $msg;
		1313	}
		1314
		1315	$done{$k} = delete $todo{$k};
		1316	push @EXTS, $v->{pkg};
		1317	$progress = 1;
1065	1	1318	}
1066	} or warn "$ext not loaded: $@";	1319
		1320	skip:
		1321	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1322	unless $progress;
		1323	}
1067	}	1324	};
1068	}	1325	}
1069		1326
1070	#############################################################################	1327	#############################################################################
1071	# load/save/clean perl data associated with a map
1072		1328
1073	*cf::mapsupport::on_clean = sub {	1329	=back
1074	my ($map) = @_;
1075
1076	my $path = $map->tmpname;
1077	defined $path or return;
1078
1079	unlink "$path.pst";
1080	};
1081
1082	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1083
1084	#############################################################################
1085		1330
1086	=head2 CORE EXTENSIONS	1331	=head2 CORE EXTENSIONS
1087		1332
1088	Functions and methods that extend core crossfire objects.	1333	Functions and methods that extend core crossfire objects.
1089		1334
…		…
1095		1340
1096	=head3 cf::player	1341	=head3 cf::player
1097		1342
1098	=over 4	1343	=over 4
1099		1344
		1345	=item cf::player::num_playing
		1346
		1347	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1348
		1349	=cut
		1350
		1351	sub num_playing {
		1352	scalar grep
		1353	$_->ob->map
		1354	&& !$_->hidden
		1355	&& !$_->ob->flag (cf::FLAG_WIZ),
		1356	cf::player::list
		1357	}
		1358
1100	=item cf::player::find $login	1359	=item cf::player::find $login
1101		1360
1102	Returns the given player object, loading it if necessary (might block).	1361	Returns the given player object, loading it if necessary (might block).
1103		1362
1104	=cut	1363	=cut
1105		1364
1106	sub playerdir($) {	1365	sub playerdir($) {
1107	cf::localdir	1366	"$PLAYERDIR/"
1108	. "/"
1109	. cf::playerdir
1110	. "/"
1111	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1367	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1112	}	1368	}
1113		1369
1114	sub path($) {	1370	sub path($) {
1115	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1371	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1116		1372
1117	(playerdir $login) . "/$login.pl"	1373	(playerdir $login) . "/playerdata"
1118	}	1374	}
1119		1375
1120	sub find_active($) {	1376	sub find_active($) {
1121	$cf::PLAYER{$_[0]}	1377	$cf::PLAYER{$_[0]}
1122	and $cf::PLAYER{$_[0]}->active	1378	and $cf::PLAYER{$_[0]}->active
…		…
1125		1381
1126	sub exists($) {	1382	sub exists($) {
1127	my ($login) = @_;	1383	my ($login) = @_;
1128		1384
1129	$cf::PLAYER{$login}	1385	$cf::PLAYER{$login}
1130	or cf::sync_job { !aio_stat $login }	1386	or cf::sync_job { !aio_stat path $login }
1131	}	1387	}
1132		1388
1133	sub find($) {	1389	sub find($) {
1134	return $cf::PLAYER{$_[0]} || do {	1390	return $cf::PLAYER{$_[0]} || do {
1135	my $login = $_[0];	1391	my $login = $_[0];
1136		1392
1137	my $guard = cf::lock_acquire "user_find:$login";	1393	my $guard = cf::lock_acquire "user_find:$login";
1138		1394
1139	$cf::PLAYER{$_[0]} || do {	1395	$cf::PLAYER{$_[0]} || do {
1140	my $pl = load_pl path $login	1396	# rename old playerfiles to new ones
		1397	#TODO: remove when no longer required
		1398	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1399	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1400	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1401	aio_unlink +(playerdir $login) . "/$login.pl";
		1402
		1403	my $f = new_from_file cf::object::thawer path $login
1141	or return;	1404	or return;
		1405
		1406	my $pl = cf::player::load_pl $f
		1407	or return;
		1408	local $cf::PLAYER_LOADING{$login} = $pl;
		1409	$f->resolve_delayed_derefs;
1142	$cf::PLAYER{$login} = $pl	1410	$cf::PLAYER{$login} = $pl
1143	}	1411	}
1144	}	1412	}
1145	}	1413	}
1146		1414
…		…
1156		1424
1157	aio_mkdir playerdir $pl, 0770;	1425	aio_mkdir playerdir $pl, 0770;
1158	$pl->{last_save} = $cf::RUNTIME;	1426	$pl->{last_save} = $cf::RUNTIME;
1159		1427
1160	$pl->save_pl ($path);	1428	$pl->save_pl ($path);
1161	Coro::cede;	1429	cf::cede_to_tick;
1162	}	1430	}
1163		1431
1164	sub new($) {	1432	sub new($) {
1165	my ($login) = @_;	1433	my ($login) = @_;
1166		1434
…		…
1172	$cf::PLAYER{$login} = $self;	1440	$cf::PLAYER{$login} = $self;
1173		1441
1174	$self	1442	$self
1175	}	1443	}
1176		1444
		1445	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1446
		1447	=cut
		1448
		1449	sub send_msg {
		1450	my $ns = shift->ns
		1451	or return;
		1452	$ns->send_msg (@_);
		1453	}
		1454
1177	=item $pl->quit_character	1455	=item $pl->quit_character
1178		1456
1179	Nukes the player without looking back. If logged in, the connection will	1457	Nukes the player without looking back. If logged in, the connection will
1180	be destroyed. May block for a long time.	1458	be destroyed. May block for a long time.
1181		1459
1182	=cut	1460	=cut
1183		1461
1184	sub quit_character {	1462	sub quit_character {
1185	my ($pl) = @_;	1463	my ($pl) = @_;
		1464
		1465	my $name = $pl->ob->name;
1186		1466
1187	$pl->{deny_save} = 1;	1467	$pl->{deny_save} = 1;
1188	$pl->password ("*"); # this should lock out the player until we nuked the dir	1468	$pl->password ("*"); # this should lock out the player until we nuked the dir
1189		1469
1190	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1470	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1195	my $path = playerdir $pl;	1475	my $path = playerdir $pl;
1196	my $temp = "$path~$cf::RUNTIME~deleting~";	1476	my $temp = "$path~$cf::RUNTIME~deleting~";
1197	aio_rename $path, $temp;	1477	aio_rename $path, $temp;
1198	delete $cf::PLAYER{$pl->ob->name};	1478	delete $cf::PLAYER{$pl->ob->name};
1199	$pl->destroy;	1479	$pl->destroy;
		1480
		1481	my $prefix = qr<^~\Q$name\E/>;
		1482
		1483	# nuke player maps
		1484	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1485
1200	IO::AIO::aio_rmtree $temp;	1486	IO::AIO::aio_rmtree $temp;
		1487	}
		1488
		1489	=item $pl->kick
		1490
		1491	Kicks a player out of the game. This destroys the connection.
		1492
		1493	=cut
		1494
		1495	sub kick {
		1496	my ($pl, $kicker) = @_;
		1497
		1498	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1499	$pl->killer ("kicked");
		1500	$pl->ns->destroy;
1201	}	1501	}
1202		1502
1203	=item cf::player::list_logins	1503	=item cf::player::list_logins
1204		1504
1205	Returns am arrayref of all valid playernames in the system, can take a	1505	Returns am arrayref of all valid playernames in the system, can take a
1206	while and may block, so not sync_job-capable, ever.	1506	while and may block, so not sync_job-capable, ever.
1207		1507
1208	=cut	1508	=cut
1209		1509
1210	sub list_logins {	1510	sub list_logins {
1211	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1511	my $dirs = aio_readdir $PLAYERDIR
1212	or return [];	1512	or return [];
1213		1513
1214	my @logins;	1514	my @logins;
1215		1515
1216	for my $login (@$dirs) {	1516	for my $login (@$dirs) {
		1517	my $path = path $login;
		1518
		1519	# a .pst is a dead give-away for a valid player
		1520	unless (-e "$path.pst") {
1217	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1521	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1218	aio_read $fh, 0, 512, my $buf, 0 or next;	1522	aio_read $fh, 0, 512, my $buf, 0 or next;
1219	$buf !~ /^password -------------$/m or next; # official not-valid tag	1523	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1524	}
1220		1525
1221	utf8::decode $login;	1526	utf8::decode $login;
1222	push @logins, $login;	1527	push @logins, $login;
1223	}	1528	}
1224		1529
1225	\@logins	1530	\@logins
1226	}	1531	}
1227		1532
1228	=item $player->maps	1533	=item $player->maps
1229		1534
1230	Returns an arrayref of cf::path's of all maps that are private for this	1535	Returns an arrayref of map paths that are private for this
1231	player. May block.	1536	player. May block.
1232		1537
1233	=cut	1538	=cut
1234		1539
1235	sub maps($) {	1540	sub maps($) {
1236	my ($pl) = @_;	1541	my ($pl) = @_;
		1542
		1543	$pl = ref $pl ? $pl->ob->name : $pl;
1237		1544
1238	my $files = aio_readdir playerdir $pl	1545	my $files = aio_readdir playerdir $pl
1239	or return;	1546	or return;
1240		1547
1241	my @paths;	1548	my @paths;
…		…
1243	for (@$files) {	1550	for (@$files) {
1244	utf8::decode $_;	1551	utf8::decode $_;
1245	next if /\.(?:pl|pst)$/;	1552	next if /\.(?:pl|pst)$/;
1246	next unless /^$PATH_SEP/o;	1553	next unless /^$PATH_SEP/o;
1247		1554
1248	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1555	push @paths, cf::map::normalise "~$pl/$_";
1249	}	1556	}
1250		1557
1251	\@paths	1558	\@paths
1252	}	1559	}
1253		1560
		1561	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1562
		1563	Expand crossfire pod fragments into protocol xml.
		1564
		1565	=cut
		1566
		1567	use re 'eval';
		1568
		1569	my $group;
		1570	my $interior; $interior = qr{
		1571	# match a pod interior sequence sans C<< >>
		1572	(?:
		1573	\ (.*?)\ (?{ $group = $^N })
		1574	| < (??{$interior}) >
		1575	)
		1576	}x;
		1577
		1578	sub expand_cfpod {
		1579	my ($self, $pod) = @_;
		1580
		1581	my $xml;
		1582
		1583	while () {
		1584	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1585	$group = $1;
		1586
		1587	$group =~ s/&/&amp;/g;
		1588	$group =~ s/</&lt;/g;
		1589
		1590	$xml .= $group;
		1591	} elsif ($pod =~ m%\G
		1592	([BCGHITU])
		1593	<
		1594	(?:
		1595	([^<>]*) (?{ $group = $^N })
		1596	| < $interior >
		1597	)
		1598	>
		1599	%gcsx
		1600	) {
		1601	my ($code, $data) = ($1, $group);
		1602
		1603	if ($code eq "B") {
		1604	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1605	} elsif ($code eq "I") {
		1606	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1607	} elsif ($code eq "U") {
		1608	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1609	} elsif ($code eq "C") {
		1610	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1611	} elsif ($code eq "T") {
		1612	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1613	} elsif ($code eq "G") {
		1614	my ($male, $female) = split /\|/, $data;
		1615	$data = $self->gender ? $female : $male;
		1616	$xml .= expand_cfpod ($self, $data);
		1617	} elsif ($code eq "H") {
		1618	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1619	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1620	"")
		1621	[$self->{hintmode}];
		1622	} else {
		1623	$xml .= "error processing '$code($data)' directive";
		1624	}
		1625	} else {
		1626	if ($pod =~ /\G(.+)/) {
		1627	warn "parse error while expanding $pod (at $1)";
		1628	}
		1629	last;
		1630	}
		1631	}
		1632
		1633	for ($xml) {
		1634	# create single paragraphs (very hackish)
		1635	s/(?<=\S)\n(?=\w)/ /g;
		1636
		1637	# compress some whitespace
		1638	s/\s+\n/\n/g; # ws line-ends
		1639	s/\n\n+/\n/g; # double lines
		1640	s/^\n+//; # beginning lines
		1641	s/\n+$//; # ending lines
		1642	}
		1643
		1644	$xml
		1645	}
		1646
		1647	no re 'eval';
		1648
		1649	sub hintmode {
		1650	$_[0]{hintmode} = $_[1] if @_ > 1;
		1651	$_[0]{hintmode}
		1652	}
		1653
1254	=item $player->ext_reply ($msgid, $msgtype, %msg)	1654	=item $player->ext_reply ($msgid, @msg)
1255		1655
1256	Sends an ext reply to the player.	1656	Sends an ext reply to the player.
1257		1657
1258	=cut	1658	=cut
1259		1659
1260	sub ext_reply($$$%) {	1660	sub ext_reply($$@) {
1261	my ($self, $id, %msg) = @_;	1661	my ($self, $id, @msg) = @_;
1262		1662
1263	$msg{msgid} = $id;	1663	$self->ns->ext_reply ($id, @msg)
1264
1265	$self->send ("ext " . cf::to_json \%msg);
1266	}	1664	}
1267		1665
1268	package cf;	1666	=item $player->ext_msg ($type, @msg)
		1667
		1668	Sends an ext event to the client.
		1669
		1670	=cut
		1671
		1672	sub ext_msg($$@) {
		1673	my ($self, $type, @msg) = @_;
		1674
		1675	$self->ns->ext_msg ($type, @msg);
		1676	}
		1677
		1678	=head3 cf::region
		1679
		1680	=over 4
		1681
		1682	=cut
		1683
		1684	package cf::region;
		1685
		1686	=item cf::region::find_by_path $path
		1687
		1688	Tries to decuce the likely region for a map knowing only its path.
		1689
		1690	=cut
		1691
		1692	sub find_by_path($) {
		1693	my ($path) = @_;
		1694
		1695	my ($match, $specificity);
		1696
		1697	for my $region (list) {
		1698	if ($region->{match} && $path =~ $region->{match}) {
		1699	($match, $specificity) = ($region, $region->specificity)
		1700	if $region->specificity > $specificity;
		1701	}
		1702	}
		1703
		1704	$match
		1705	}
1269		1706
1270	=back	1707	=back
1271
1272		1708
1273	=head3 cf::map	1709	=head3 cf::map
1274		1710
1275	=over 4	1711	=over 4
1276		1712
…		…
1279	package cf::map;	1715	package cf::map;
1280		1716
1281	use Fcntl;	1717	use Fcntl;
1282	use Coro::AIO;	1718	use Coro::AIO;
1283		1719
		1720	use overload
		1721	'""' => \&as_string,
		1722	fallback => 1;
		1723
1284	our $MAX_RESET = 3600;	1724	our $MAX_RESET = 3600;
1285	our $DEFAULT_RESET = 3000;	1725	our $DEFAULT_RESET = 3000;
1286		1726
1287	sub generate_random_map {	1727	sub generate_random_map {
1288	my ($path, $rmp) = @_;	1728	my ($self, $rmp) = @_;
1289
1290	# mit "rum" bekleckern, nicht	1729	# mit "rum" bekleckern, nicht
1291	cf::map::_create_random_map (	1730	$self->_create_random_map (
1292	$path,
1293	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1731	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1294	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1732	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1295	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1733	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1296	$rmp->{exit_on_final_map},	1734	$rmp->{exit_on_final_map},
1297	$rmp->{xsize}, $rmp->{ysize},	1735	$rmp->{xsize}, $rmp->{ysize},
…		…
1302	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1740	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1303	(cf::region::find $rmp->{region}), $rmp->{custom}	1741	(cf::region::find $rmp->{region}), $rmp->{custom}
1304	)	1742	)
1305	}	1743	}
1306		1744
		1745	=item cf::map->register ($regex, $prio)
		1746
		1747	Register a handler for the map path matching the given regex at the
		1748	givne priority (higher is better, built-in handlers have priority 0, the
		1749	default).
		1750
		1751	=cut
		1752
		1753	sub register {
		1754	my (undef, $regex, $prio) = @_;
		1755	my $pkg = caller;
		1756
		1757	no strict;
		1758	push @{"$pkg\::ISA"}, __PACKAGE__;
		1759
		1760	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1761	}
		1762
		1763	# also paths starting with '/'
		1764	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1765
		1766	sub thawer_merge {
		1767	my ($self, $merge) = @_;
		1768
		1769	# we have to keep some variables in memory intact
		1770	local $self->{path};
		1771	local $self->{load_path};
		1772
		1773	$self->SUPER::thawer_merge ($merge);
		1774	}
		1775
		1776	sub normalise {
		1777	my ($path, $base) = @_;
		1778
		1779	$path = "$path"; # make sure its a string
		1780
		1781	$path =~ s/\.map$//;
		1782
		1783	# map plan:
		1784	#
		1785	# /! non-realised random map exit (special hack!)
		1786	# {... are special paths that are not being touched
		1787	# ?xxx/... are special absolute paths
		1788	# ?random/... random maps
		1789	# /... normal maps
		1790	# ~user/... per-player map of a specific user
		1791
		1792	$path =~ s/$PATH_SEP/\//go;
		1793
		1794	# treat it as relative path if it starts with
		1795	# something that looks reasonable
		1796	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1797	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1798
		1799	$base =~ s{[^/]+/?$}{};
		1800	$path = "$base/$path";
		1801	}
		1802
		1803	for ($path) {
		1804	redo if s{//}{/};
		1805	redo if s{/\.?/}{/};
		1806	redo if s{/[^/]+/\.\./}{/};
		1807	}
		1808
		1809	$path
		1810	}
		1811
		1812	sub new_from_path {
		1813	my (undef, $path, $base) = @_;
		1814
		1815	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1816
		1817	$path = normalise $path, $base;
		1818
		1819	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1820	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1821	my $self = bless cf::map::new, $pkg;
		1822	$self->{path} = $path; $self->path ($path);
		1823	$self->init; # pass $1 etc.
		1824	return $self;
		1825	}
		1826	}
		1827
		1828	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1829	()
		1830	}
		1831
		1832	sub init {
		1833	my ($self) = @_;
		1834
		1835	$self
		1836	}
		1837
		1838	sub as_string {
		1839	my ($self) = @_;
		1840
		1841	"$self->{path}"
		1842	}
		1843
		1844	# the displayed name, this is a one way mapping
		1845	sub visible_name {
		1846	&as_string
		1847	}
		1848
		1849	# the original (read-only) location
		1850	sub load_path {
		1851	my ($self) = @_;
		1852
		1853	"$MAPDIR/$self->{path}.map"
		1854	}
		1855
		1856	# the temporary/swap location
		1857	sub save_path {
		1858	my ($self) = @_;
		1859
		1860	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1861	"$TMPDIR/$path.map"
		1862	}
		1863
		1864	# the unique path, undef == no special unique path
		1865	sub uniq_path {
		1866	my ($self) = @_;
		1867
		1868	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1869	"$UNIQUEDIR/$path"
		1870	}
		1871
1307	# and all this just because we cannot iterate over	1872	# and all this just because we cannot iterate over
1308	# all maps in C++...	1873	# all maps in C++...
1309	sub change_all_map_light {	1874	sub change_all_map_light {
1310	my ($change) = @_;	1875	my ($change) = @_;
1311		1876
1312	$_->change_map_light ($change)	1877	$_->change_map_light ($change)
1313	for grep $_->outdoor, values %cf::MAP;	1878	for grep $_->outdoor, values %cf::MAP;
1314	}	1879	}
1315		1880
		1881	sub decay_objects {
		1882	my ($self) = @_;
		1883
		1884	return if $self->{deny_reset};
		1885
		1886	$self->do_decay_objects;
		1887	}
		1888
		1889	sub unlink_save {
		1890	my ($self) = @_;
		1891
		1892	utf8::encode (my $save = $self->save_path);
		1893	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1894	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1895	}
		1896
1316	sub load_map_header($) {	1897	sub load_header_from($) {
1317	my ($path) = @_;	1898	my ($self, $path) = @_;
1318		1899
1319	utf8::encode $path;	1900	utf8::encode $path;
1320	aio_open $path, O_RDONLY, 0	1901	my $f = new_from_file cf::object::thawer $path
1321	or return;	1902	or return;
1322		1903
1323	my $map = cf::map::new	1904	$self->_load_header ($f)
1324	or return;	1905	or return;
1325		1906
1326	# for better error messages only, will be overwritten later	1907	local $MAP_LOADING{$self->{path}} = $self;
1327	$map->path ($path);	1908	$f->resolve_delayed_derefs;
1328		1909
1329	$map->load_header ($path)	1910	$self->{load_path} = $path;
		1911
		1912	1
		1913	}
		1914
		1915	sub load_header_orig {
		1916	my ($self) = @_;
		1917
		1918	$self->load_header_from ($self->load_path)
		1919	}
		1920
		1921	sub load_header_temp {
		1922	my ($self) = @_;
		1923
		1924	$self->load_header_from ($self->save_path)
		1925	}
		1926
		1927	sub prepare_temp {
		1928	my ($self) = @_;
		1929
		1930	$self->last_access ((delete $self->{last_access})
		1931	|| $cf::RUNTIME); #d#
		1932	# safety
		1933	$self->{instantiate_time} = $cf::RUNTIME
		1934	if $self->{instantiate_time} > $cf::RUNTIME;
		1935	}
		1936
		1937	sub prepare_orig {
		1938	my ($self) = @_;
		1939
		1940	$self->{load_original} = 1;
		1941	$self->{instantiate_time} = $cf::RUNTIME;
		1942	$self->last_access ($cf::RUNTIME);
		1943	$self->instantiate;
		1944	}
		1945
		1946	sub load_header {
		1947	my ($self) = @_;
		1948
		1949	if ($self->load_header_temp) {
		1950	$self->prepare_temp;
		1951	} else {
		1952	$self->load_header_orig
1330	or return;	1953	or return;
		1954	$self->prepare_orig;
		1955	}
1331		1956
1332	$map->{load_path} = $path;	1957	$self->{deny_reset} = 1
		1958	if $self->no_reset;
1333		1959
1334	$map	1960	$self->default_region (cf::region::find_by_path $self->{path})
		1961	unless $self->default_region;
		1962
		1963	1
1335	}	1964	}
1336		1965
1337	sub find;	1966	sub find;
1338	sub find {	1967	sub find {
1339	my ($path, $origin) = @_;	1968	my ($path, $origin) = @_;
1340		1969
1341	#warn "find<$path,$origin>\n";#d#
1342
1343	$path = new cf::path $path, $origin && $origin->path;	1970	$path = normalise $path, $origin && $origin->path;
1344	my $key = $path->as_string;
1345		1971
		1972	cf::lock_wait "map_data:$path";#d#remove
1346	cf::lock_wait "map_find:$key";	1973	cf::lock_wait "map_find:$path";
1347		1974
1348	$cf::MAP{$key} || do {	1975	$cf::MAP{$path} || do {
1349	my $guard = cf::lock_acquire "map_find:$key";	1976	my $guard1 = cf::lock_acquire "map_find:$path";
		1977	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1350		1978
1351	# do it the slow way	1979	my $map = new_from_path cf::map $path
1352	my $map = $path->load_temp;
1353
1354	Coro::cede;
1355
1356	if ($map) {
1357	$map->last_access ((delete $map->{last_access})
1358	|| $cf::RUNTIME); #d#
1359	# safety
1360	$map->{instantiate_time} = $cf::RUNTIME
1361	if $map->{instantiate_time} > $cf::RUNTIME;
1362	} else {
1363	$map = $path->load_orig
1364	or return;	1980	or return;
1365		1981
1366	$map->{load_original} = 1;
1367	$map->{instantiate_time} = $cf::RUNTIME;
1368	$map->last_access ($cf::RUNTIME);
1369	$map->instantiate;
1370
1371	# per-player maps become, after loading, normal maps
1372	$map->per_player (0) if $path->{user_rel};
1373	}
1374
1375	$map->path ($key);
1376	$map->{path} = $path;
1377	$map->{last_save} = $cf::RUNTIME;	1982	$map->{last_save} = $cf::RUNTIME;
1378		1983
1379	Coro::cede;	1984	$map->load_header
		1985	or return;
1380		1986
1381	if ($map->should_reset) {	1987	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1988	# doing this can freeze the server in a sync job, obviously
		1989	#$cf::WAIT_FOR_TICK->wait;
		1990	undef $guard1;
		1991	undef $guard2;
1382	$map->reset;	1992	$map->reset;
1383	undef $guard;
1384	$map = find $path	1993	return find $path;
1385	or return;
1386	}	1994	}
1387		1995
1388	$cf::MAP{$key} = $map	1996	$cf::MAP{$path} = $map
1389	}	1997	}
1390	}	1998	}
		1999
		2000	sub pre_load { }
		2001	sub post_load { }
1391		2002
1392	sub load {	2003	sub load {
1393	my ($self) = @_;	2004	my ($self) = @_;
1394		2005
		2006	local $self->{deny_reset} = 1; # loading can take a long time
		2007
1395	my $path = $self->{path};	2008	my $path = $self->{path};
		2009
		2010	{
1396	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2011	my $guard = cf::lock_acquire "map_data:$path";
1397		2012
		2013	return unless $self->valid;
1398	return if $self->in_memory != cf::MAP_SWAPPED;	2014	return unless $self->in_memory == cf::MAP_SWAPPED;
1399		2015
1400	$self->in_memory (cf::MAP_LOADING);	2016	$self->in_memory (cf::MAP_LOADING);
1401		2017
1402	$self->alloc;	2018	$self->alloc;
1403	$self->load_objects ($self->{load_path}, 1)	2019
		2020	$self->pre_load;
		2021	cf::cede_to_tick;
		2022
		2023	my $f = new_from_file cf::object::thawer $self->{load_path};
		2024	$f->skip_block;
		2025	$self->_load_objects ($f)
1404	or return;	2026	or return;
1405		2027
1406	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2028	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1407	if delete $self->{load_original};	2029	if delete $self->{load_original};
1408		2030
1409	if (my $uniq = $path->uniq_path) {	2031	if (my $uniq = $self->uniq_path) {
1410	utf8::encode $uniq;	2032	utf8::encode $uniq;
1411	if (aio_open $uniq, O_RDONLY, 0) {	2033	unless (aio_stat $uniq) {
		2034	if (my $f = new_from_file cf::object::thawer $uniq) {
1412	$self->clear_unique_items;	2035	$self->clear_unique_items;
1413	$self->load_objects ($uniq, 0);	2036	$self->_load_objects ($f);
		2037	$f->resolve_delayed_derefs;
		2038	}
1414	}	2039	}
1415	}	2040	}
1416		2041
1417	Coro::cede;	2042	$f->resolve_delayed_derefs;
1418		2043
		2044	cf::cede_to_tick;
1419	# now do the right thing for maps	2045	# now do the right thing for maps
1420	$self->link_multipart_objects;	2046	$self->link_multipart_objects;
1421
1422	if ($self->{path}->is_style_map) {
1423	$self->{deny_save} = 1;
1424	$self->{deny_reset} = 1;
1425	} else {
1426	$self->decay_objects;
1427	$self->fix_auto_apply;
1428	$self->update_buttons;
1429	$self->set_darkness_map;
1430	$self->difficulty ($self->estimate_difficulty)	2047	$self->difficulty ($self->estimate_difficulty)
1431	unless $self->difficulty;	2048	unless $self->difficulty;
		2049	cf::cede_to_tick;
		2050
		2051	unless ($self->{deny_activate}) {
		2052	$self->decay_objects;
		2053	$self->fix_auto_apply;
		2054	$self->update_buttons;
		2055	cf::cede_to_tick;
		2056	$self->set_darkness_map;
		2057	cf::cede_to_tick;
1432	$self->activate;	2058	$self->activate;
1433	}	2059	}
1434		2060
1435	Coro::cede;	2061	$self->{last_save} = $cf::RUNTIME;
		2062	$self->last_access ($cf::RUNTIME);
1436		2063
1437	$self->in_memory (cf::MAP_IN_MEMORY);	2064	$self->in_memory (cf::MAP_IN_MEMORY);
		2065	}
		2066
		2067	$self->post_load;
		2068	}
		2069
		2070	sub customise_for {
		2071	my ($self, $ob) = @_;
		2072
		2073	return find "~" . $ob->name . "/" . $self->{path}
		2074	if $self->per_player;
		2075
		2076	# return find "?party/" . $ob->name . "/" . $self->{path}
		2077	# if $self->per_party;
		2078
		2079	$self
1438	}	2080	}
1439		2081
1440	# find and load all maps in the 3x3 area around a map	2082	# find and load all maps in the 3x3 area around a map
1441	sub load_diag {	2083	sub load_neighbours {
1442	my ($map) = @_;	2084	my ($map) = @_;
1443		2085
1444	my @diag; # diagonal neighbours	2086	my @neigh; # diagonal neighbours
1445		2087
1446	for (0 .. 3) {	2088	for (0 .. 3) {
1447	my $neigh = $map->tile_path ($_)	2089	my $neigh = $map->tile_path ($_)
1448	or next;	2090	or next;
1449	$neigh = find $neigh, $map	2091	$neigh = find $neigh, $map
1450	or next;	2092	or next;
1451	$neigh->load;	2093	$neigh->load;
1452		2094
		2095	push @neigh,
1453	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2096	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1454	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2097	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1455	}	2098	}
1456		2099
1457	for (@diag) {	2100	for (grep defined $_->[0], @neigh) {
		2101	my ($path, $origin) = @$_;
1458	my $neigh = find @$_	2102	my $neigh = find $path, $origin
1459	or next;	2103	or next;
1460	$neigh->load;	2104	$neigh->load;
1461	}	2105	}
1462	}	2106	}
1463		2107
…		…
1468	}	2112	}
1469		2113
1470	sub do_load_sync {	2114	sub do_load_sync {
1471	my ($map) = @_;	2115	my ($map) = @_;
1472		2116
		2117	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2118	if $Coro::current == $Coro::main;
		2119
1473	cf::sync_job { $map->load };	2120	cf::sync_job { $map->load };
1474	}	2121	}
1475		2122
1476	our %MAP_PREFETCH;	2123	our %MAP_PREFETCH;
		2124	our $MAP_PREFETCHER = undef;
		2125
		2126	sub find_async {
		2127	my ($path, $origin, $load) = @_;
		2128
		2129	$path = normalise $path, $origin && $origin->{path};
		2130
		2131	if (my $map = $cf::MAP{$path}) {
		2132	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2133	}
		2134
		2135	$MAP_PREFETCH{$path} |= $load;
		2136
1477	our $MAP_PREFETCHER = Coro::async {	2137	$MAP_PREFETCHER ||= cf::async {
1478	while () {	2138	$Coro::current->{desc} = "map prefetcher";
		2139
1479	while (%MAP_PREFETCH) {	2140	while (%MAP_PREFETCH) {
1480	my $key = each %MAP_PREFETCH	2141	while (my ($k, $v) = each %MAP_PREFETCH) {
1481	or next;	2142	if (my $map = find $k) {
		2143	$map->load if $v;
		2144	}
		2145
1482	my $path = delete $MAP_PREFETCH{$key};	2146	delete $MAP_PREFETCH{$k};
1483
1484	my $map = find $path
1485	or next;
1486	$map->load;
1487	}	2147	}
1488	Coro::schedule;	2148	}
		2149	undef $MAP_PREFETCHER;
1489	}	2150	};
1490	};
1491
1492	sub find_async {
1493	my ($path, $origin) = @_;
1494
1495	$path = new cf::path $path, $origin && $origin->path;
1496	my $key = $path->as_string;
1497
1498	if (my $map = $cf::MAP{$key}) {
1499	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1500	}
1501
1502	$MAP_PREFETCH{$key} = $path;
1503	$MAP_PREFETCHER->ready;	2151	$MAP_PREFETCHER->prio (6);
1504		2152
1505	()	2153	()
1506	}	2154	}
1507		2155
1508	sub save {	2156	sub save {
1509	my ($self) = @_;	2157	my ($self) = @_;
1510		2158
1511	my $lock = cf::lock_acquire "map_data:" . $self->path;	2159	my $lock = cf::lock_acquire "map_data:$self->{path}";
1512		2160
1513	$self->{last_save} = $cf::RUNTIME;	2161	$self->{last_save} = $cf::RUNTIME;
1514		2162
1515	return unless $self->dirty;	2163	return unless $self->dirty;
1516		2164
1517	my $save = $self->{path}->save_path; utf8::encode $save;	2165	my $save = $self->save_path; utf8::encode $save;
1518	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2166	my $uniq = $self->uniq_path; utf8::encode $uniq;
1519		2167
1520	$self->{load_path} = $save;	2168	$self->{load_path} = $save;
1521		2169
1522	return if $self->{deny_save};	2170	return if $self->{deny_save};
1523		2171
1524	local $self->{last_access} = $self->last_access;#d#	2172	local $self->{last_access} = $self->last_access;#d#
1525		2173
1526	cf::async {	2174	cf::async {
		2175	$Coro::current->{desc} = "map player save";
1527	$_->contr->save for $self->players;	2176	$_->contr->save for $self->players;
1528	};	2177	};
1529		2178
1530	if ($uniq) {	2179	if ($uniq) {
1531	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2180	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1532	$self->save_objects ($uniq, cf::IO_UNIQUES);	2181	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1533	} else {	2182	} else {
1534	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2183	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1535	}	2184	}
1536	}	2185	}
1537		2186
1538	sub swap_out {	2187	sub swap_out {
1539	my ($self) = @_;	2188	my ($self) = @_;
1540		2189
1541	# save first because save cedes	2190	# save first because save cedes
1542	$self->save;	2191	$self->save;
1543		2192
1544	my $lock = cf::lock_acquire "map_data:" . $self->path;	2193	my $lock = cf::lock_acquire "map_data:$self->{path}";
1545		2194
1546	return if $self->players;	2195	return if $self->players;
1547	return if $self->in_memory != cf::MAP_IN_MEMORY;	2196	return if $self->in_memory != cf::MAP_IN_MEMORY;
1548	return if $self->{deny_save};	2197	return if $self->{deny_save};
1549		2198
		2199	$self->in_memory (cf::MAP_SWAPPED);
		2200
		2201	$self->deactivate;
		2202	$_->clear_links_to ($self) for values %cf::MAP;
1550	$self->clear;	2203	$self->clear;
1551	$self->in_memory (cf::MAP_SWAPPED);
1552	}	2204	}
1553		2205
1554	sub reset_at {	2206	sub reset_at {
1555	my ($self) = @_;	2207	my ($self) = @_;
1556		2208
1557	# TODO: safety, remove and allow resettable per-player maps	2209	# TODO: safety, remove and allow resettable per-player maps
1558	return 1e99 if $self->{path}{user_rel};
1559	return 1e99 if $self->{deny_reset};	2210	return 1e99 if $self->{deny_reset};
1560		2211
1561	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2212	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1562	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2213	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1563		2214
…		…
1568	my ($self) = @_;	2219	my ($self) = @_;
1569		2220
1570	$self->reset_at <= $cf::RUNTIME	2221	$self->reset_at <= $cf::RUNTIME
1571	}	2222	}
1572		2223
1573	sub rename {
1574	my ($self, $new_path) = @_;
1575
1576	$self->{path}->unlink_save;
1577
1578	delete $cf::MAP{$self->path};
1579	$self->{path} = new cf::path $new_path;
1580	$self->path ($self->{path}->as_string);
1581	$cf::MAP{$self->path} = $self;
1582
1583	$self->save;
1584	}
1585
1586	sub reset {	2224	sub reset {
1587	my ($self) = @_;	2225	my ($self) = @_;
1588		2226
1589	my $lock = cf::lock_acquire "map_data:" . $self->path;	2227	my $lock = cf::lock_acquire "map_data:$self->{path}";
1590		2228
1591	return if $self->players;	2229	return if $self->players;
1592	return if $self->{path}{user_rel};#d#
1593		2230
1594	warn "resetting map ", $self->path;#d#	2231	warn "resetting map ", $self->path;
		2232
		2233	$self->in_memory (cf::MAP_SWAPPED);
		2234
		2235	# need to save uniques path
		2236	unless ($self->{deny_save}) {
		2237	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2238
		2239	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2240	if $uniq;
		2241	}
1595		2242
1596	delete $cf::MAP{$self->path};	2243	delete $cf::MAP{$self->path};
1597		2244
		2245	$self->deactivate;
1598	$_->clear_links_to ($self) for values %cf::MAP;	2246	$_->clear_links_to ($self) for values %cf::MAP;
		2247	$self->clear;
1599		2248
1600	$self->{path}->unlink_save;	2249	$self->unlink_save;
1601	$self->destroy;	2250	$self->destroy;
1602	}	2251	}
1603		2252
1604	my $nuke_counter = "aaaa";	2253	my $nuke_counter = "aaaa";
1605		2254
1606	sub nuke {	2255	sub nuke {
1607	my ($self) = @_;	2256	my ($self) = @_;
1608		2257
		2258	{
		2259	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2260
		2261	delete $cf::MAP{$self->path};
		2262
		2263	$self->unlink_save;
		2264
		2265	bless $self, "cf::map";
		2266	delete $self->{deny_reset};
1609	$self->{deny_save} = 1;	2267	$self->{deny_save} = 1;
1610	$self->reset_timeout (1);	2268	$self->reset_timeout (1);
1611	$self->rename ("{nuke}/" . ($nuke_counter++));	2269	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2270
		2271	$cf::MAP{$self->path} = $self;
		2272	}
		2273
1612	$self->reset; # polite request, might not happen	2274	$self->reset; # polite request, might not happen
1613	}	2275	}
1614		2276
		2277	=item $maps = cf::map::tmp_maps
		2278
		2279	Returns an arrayref with all map paths of currently instantiated and saved
		2280	maps. May block.
		2281
		2282	=cut
		2283
		2284	sub tmp_maps() {
		2285	[
		2286	map {
		2287	utf8::decode $_;
		2288	/\.map$/
		2289	? normalise $_
		2290	: ()
		2291	} @{ aio_readdir $TMPDIR or [] }
		2292	]
		2293	}
		2294
		2295	=item $maps = cf::map::random_maps
		2296
		2297	Returns an arrayref with all map paths of currently instantiated and saved
		2298	random maps. May block.
		2299
		2300	=cut
		2301
		2302	sub random_maps() {
		2303	[
		2304	map {
		2305	utf8::decode $_;
		2306	/\.map$/
		2307	? normalise "?random/$_"
		2308	: ()
		2309	} @{ aio_readdir $RANDOMDIR or [] }
		2310	]
		2311	}
		2312
1615	=item cf::map::unique_maps	2313	=item cf::map::unique_maps
1616		2314
1617	Returns an arrayref of cf::path's of all shared maps that have	2315	Returns an arrayref of paths of all shared maps that have
1618	instantiated unique items. May block.	2316	instantiated unique items. May block.
1619		2317
1620	=cut	2318	=cut
1621		2319
1622	sub unique_maps() {	2320	sub unique_maps() {
1623	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2321	[
1624	or return;	2322	map {
1625
1626	my @paths;
1627
1628	for (@$files) {
1629	utf8::decode $_;	2323	utf8::decode $_;
1630	next if /\.pst$/;	2324	/\.map$/
1631	next unless /^$PATH_SEP/o;	2325	? normalise $_
1632		2326	: ()
1633	push @paths, new cf::path $_;	2327	} @{ aio_readdir $UNIQUEDIR or [] }
1634	}	2328	]
1635
1636	\@paths
1637	}	2329	}
1638		2330
1639	package cf;	2331	package cf;
1640		2332
1641	=back	2333	=back
…		…
1659	map { $_, inv_recursive_ $_->inv } @_	2351	map { $_, inv_recursive_ $_->inv } @_
1660	}	2352	}
1661		2353
1662	sub inv_recursive {	2354	sub inv_recursive {
1663	inv_recursive_ inv $_[0]	2355	inv_recursive_ inv $_[0]
		2356	}
		2357
		2358	=item $ref = $ob->ref
		2359
		2360	creates and returns a persistent reference to an objetc that can be stored as a string.
		2361
		2362	=item $ob = cf::object::deref ($refstring)
		2363
		2364	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2365	even if the object actually exists. May block.
		2366
		2367	=cut
		2368
		2369	sub deref {
		2370	my ($ref) = @_;
		2371
		2372	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2373	my ($uuid, $name) = ($1, $2);
		2374	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2375	or return;
		2376	$pl->ob->uuid eq $uuid
		2377	or return;
		2378
		2379	$pl->ob
		2380	} else {
		2381	warn "$ref: cannot resolve object reference\n";
		2382	undef
		2383	}
1664	}	2384	}
1665		2385
1666	package cf;	2386	package cf;
1667		2387
1668	=back	2388	=back
…		…
1687		2407
1688	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2408	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1689		2409
1690	if ($self->{record_replies}) {	2410	if ($self->{record_replies}) {
1691	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2411	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2412
1692	} else {	2413	} else {
		2414	my $pl = $self->contr;
		2415
		2416	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2417	my $dialog = $pl->{npc_dialog};
		2418	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2419
		2420	} else {
1693	$msg = $npc->name . " says: $msg" if $npc;	2421	$msg = $npc->name . " says: $msg" if $npc;
1694	$self->message ($msg, $flags);	2422	$self->message ($msg, $flags);
		2423	}
1695	}	2424	}
		2425	}
		2426
		2427	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2428
		2429	=cut
		2430
		2431	sub cf::object::send_msg {
		2432	my $pl = shift->contr
		2433	or return;
		2434	$pl->send_msg (@_);
1696	}	2435	}
1697		2436
1698	=item $player_object->may ("access")	2437	=item $player_object->may ("access")
1699		2438
1700	Returns wether the given player is authorized to access resource "access"	2439	Returns wether the given player is authorized to access resource "access"
…		…
1713		2452
1714	=item $player_object->enter_link	2453	=item $player_object->enter_link
1715		2454
1716	Freezes the player and moves him/her to a special map (C<{link}>).	2455	Freezes the player and moves him/her to a special map (C<{link}>).
1717		2456
1718	The player should be reaosnably safe there for short amounts of time. You	2457	The player should be reasonably safe there for short amounts of time. You
1719	I<MUST> call C<leave_link> as soon as possible, though.	2458	I<MUST> call C<leave_link> as soon as possible, though.
1720		2459
		2460	Will never block.
		2461
1721	=item $player_object->leave_link ($map, $x, $y)	2462	=item $player_object->leave_link ($map, $x, $y)
1722		2463
1723	Moves the player out of the specila link map onto the given map. If the	2464	Moves the player out of the special C<{link}> map onto the specified
1724	map is not valid (or omitted), the player will be moved back to the	2465	map. If the map is not valid (or omitted), the player will be moved back
1725	location he/she was before the call to C<enter_link>, or, if that fails,	2466	to the location he/she was before the call to C<enter_link>, or, if that
1726	to the emergency map position.	2467	fails, to the emergency map position.
1727		2468
1728	Might block.	2469	Might block.
1729		2470
1730	=cut	2471	=cut
		2472
		2473	sub link_map {
		2474	unless ($LINK_MAP) {
		2475	$LINK_MAP = cf::map::find "{link}"
		2476	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2477	$LINK_MAP->load;
		2478	}
		2479
		2480	$LINK_MAP
		2481	}
1731		2482
1732	sub cf::object::player::enter_link {	2483	sub cf::object::player::enter_link {
1733	my ($self) = @_;	2484	my ($self) = @_;
1734		2485
1735	$self->deactivate_recursive;	2486	$self->deactivate_recursive;
1736		2487
1737	return if $self->map == $LINK_MAP;	2488	return if UNIVERSAL::isa $self->map, "ext::map_link";
1738		2489
1739	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2490	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1740	if $self->map;	2491	if $self->map && $self->map->{path} ne "{link}";
1741		2492
1742	$self->enter_map ($LINK_MAP, 20, 20);	2493	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1743	}	2494	}
1744		2495
1745	sub cf::object::player::leave_link {	2496	sub cf::object::player::leave_link {
1746	my ($self, $map, $x, $y) = @_;	2497	my ($self, $map, $x, $y) = @_;
		2498
		2499	return unless $self->contr->active;
1747		2500
1748	my $link_pos = delete $self->{_link_pos};	2501	my $link_pos = delete $self->{_link_pos};
1749		2502
1750	unless ($map) {	2503	unless ($map) {
1751	# restore original map position	2504	# restore original map position
…		…
1765	# use -1 or undef as default coordinates, not 0, 0	2518	# use -1 or undef as default coordinates, not 0, 0
1766	($x, $y) = ($map->enter_x, $map->enter_y)	2519	($x, $y) = ($map->enter_x, $map->enter_y)
1767	if $x <=0 && $y <= 0;	2520	if $x <=0 && $y <= 0;
1768		2521
1769	$map->load;	2522	$map->load;
1770	$map->load_diag;	2523	$map->load_neighbours;
1771		2524
1772	return unless $self->contr->active;	2525	return unless $self->contr->active;
1773	$self->activate_recursive;	2526	$self->activate_recursive;
		2527
		2528	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1774	$self->enter_map ($map, $x, $y);	2529	$self->enter_map ($map, $x, $y);
1775	}	2530	}
1776		2531
1777	cf::player->attach (	2532	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1778	on_logout => sub {
1779	my ($pl) = @_;
1780		2533
1781	# abort map switching before logout	2534	Moves the player to the given map-path and coordinates by first freezing
1782	if ($pl->ob->{_link_pos}) {	2535	her, loading and preparing them map, calling the provided $check callback
1783	cf::sync_job {	2536	that has to return the map if sucecssful, and then unfreezes the player on
1784	$pl->ob->leave_link	2537	the new (success) or old (failed) map position. In either case, $done will
1785	};	2538	be called at the end of this process.
1786	}
1787	},
1788	on_login => sub {
1789	my ($pl) = @_;
1790		2539
1791	# try to abort aborted map switching on player login :)
1792	# should happen only on crashes
1793	if ($pl->ob->{_link_pos}) {
1794	$pl->ob->enter_link;
1795	(async {
1796	# we need this sleep as the login has a concurrent enter_exit running
1797	# and this sleep increases chances of the player not ending up in scorn
1798	$pl->ob->reply (undef,
1799	"There was an internal problem at your last logout, "
1800	. "the server will try to bring you to your intended destination in a second.",
1801	cf::NDI_RED);
1802	Coro::Timer::sleep 1;
1803	$pl->ob->leave_link;
1804	})->prio (2);
1805	}
1806	},
1807	);
1808
1809	=item $player_object->goto ($path, $x, $y)
1810
1811	=cut	2540	=cut
		2541
		2542	our $GOTOGEN;
1812		2543
1813	sub cf::object::player::goto {	2544	sub cf::object::player::goto {
1814	my ($self, $path, $x, $y) = @_;	2545	my ($self, $path, $x, $y, $check, $done) = @_;
1815		2546
1816	$path = new cf::path $path;	2547	# do generation counting so two concurrent goto's will be executed in-order
		2548	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1817		2549
1818	$self->enter_link;	2550	$self->enter_link;
1819		2551
1820	(async {	2552	(async {
1821	my $map = cf::map::find $path->as_string;	2553	$Coro::current->{desc} = "player::goto $path $x $y";
1822	$map = $map->{path}->customise_for ($map, $self) if $map;
1823		2554
1824	# warn "entering ", $map->path, " at ($x, $y)\n"	2555	# *tag paths override both path and x|y
		2556	if ($path =~ /^\*(.*)$/) {
		2557	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2558	my $ob = $obs[rand @obs];
		2559
		2560	# see if we actually can go there
		2561	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2562	$ob = $obs[rand @obs];
		2563	} else {
		2564	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2565	}
		2566	# else put us there anyways for now #d#
		2567
		2568	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2569	} else {
		2570	($path, $x, $y) = (undef, undef, undef);
		2571	}
		2572	}
		2573
		2574	my $map = eval {
		2575	my $map = defined $path ? cf::map::find $path : undef;
		2576
1825	# if $map;	2577	if ($map) {
1826		2578	$map = $map->customise_for ($self);
		2579	$map = $check->($map) if $check && $map;
		2580	} else {
1827	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2581	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2582	}
1828		2583
		2584	$map
		2585	};
		2586
		2587	if ($@) {
		2588	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2589	LOG llevError | logBacktrace, Carp::longmess $@;
		2590	}
		2591
		2592	if ($gen == $self->{_goto_generation}) {
		2593	delete $self->{_goto_generation};
1829	$self->leave_link ($map, $x, $y);	2594	$self->leave_link ($map, $x, $y);
		2595	}
		2596
		2597	$done->() if $done;
1830	})->prio (1);	2598	})->prio (1);
1831	}	2599	}
1832		2600
1833	=item $player_object->enter_exit ($exit_object)	2601	=item $player_object->enter_exit ($exit_object)
1834		2602
…		…
1836		2604
1837	sub parse_random_map_params {	2605	sub parse_random_map_params {
1838	my ($spec) = @_;	2606	my ($spec) = @_;
1839		2607
1840	my $rmp = { # defaults	2608	my $rmp = { # defaults
1841	xsize => 10,	2609	xsize => (cf::rndm 15, 40),
1842	ysize => 10,	2610	ysize => (cf::rndm 15, 40),
		2611	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2612	#layout => string,
1843	};	2613	};
1844		2614
1845	for (split /\n/, $spec) {	2615	for (split /\n/, $spec) {
1846	my ($k, $v) = split /\s+/, $_, 2;	2616	my ($k, $v) = split /\s+/, $_, 2;
1847		2617
…		…
1851	$rmp	2621	$rmp
1852	}	2622	}
1853		2623
1854	sub prepare_random_map {	2624	sub prepare_random_map {
1855	my ($exit) = @_;	2625	my ($exit) = @_;
		2626
		2627	my $guard = cf::lock_acquire "exit_prepare:$exit";
1856		2628
1857	# all this does is basically replace the /! path by	2629	# all this does is basically replace the /! path by
1858	# a new random map path (?random/...) with a seed	2630	# a new random map path (?random/...) with a seed
1859	# that depends on the exit object	2631	# that depends on the exit object
1860		2632
1861	my $rmp = parse_random_map_params $exit->msg;	2633	my $rmp = parse_random_map_params $exit->msg;
1862		2634
1863	if ($exit->map) {	2635	if ($exit->map) {
1864	$rmp->{region} = $exit->map->region_name;	2636	$rmp->{region} = $exit->region->name;
1865	$rmp->{origin_map} = $exit->map->path;	2637	$rmp->{origin_map} = $exit->map->path;
1866	$rmp->{origin_x} = $exit->x;	2638	$rmp->{origin_x} = $exit->x;
1867	$rmp->{origin_y} = $exit->y;	2639	$rmp->{origin_y} = $exit->y;
1868	}	2640	}
1869		2641
1870	$rmp->{random_seed} ||= $exit->random_seed;	2642	$rmp->{random_seed} ||= $exit->random_seed;
1871		2643
1872	my $data = cf::to_json $rmp;	2644	my $data = cf::encode_json $rmp;
1873	my $md5 = Digest::MD5::md5_hex $data;	2645	my $md5 = Digest::MD5::md5_hex $data;
		2646	my $meta = "$RANDOMDIR/$md5.meta";
1874		2647
1875	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2648	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1876	aio_write $fh, 0, (length $data), $data, 0;	2649	aio_write $fh, 0, (length $data), $data, 0;
		2650	undef $fh;
		2651	aio_rename "$meta~", $meta;
1877		2652
1878	$exit->slaying ("?random/$md5");	2653	$exit->slaying ("?random/$md5");
1879	$exit->msg (undef);	2654	$exit->msg (undef);
1880	}	2655	}
1881	}	2656	}
…		…
1883	sub cf::object::player::enter_exit {	2658	sub cf::object::player::enter_exit {
1884	my ($self, $exit) = @_;	2659	my ($self, $exit) = @_;
1885		2660
1886	return unless $self->type == cf::PLAYER;	2661	return unless $self->type == cf::PLAYER;
1887		2662
		2663	if ($exit->slaying eq "/!") {
		2664	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2665	# the problem is that $exit might not survive long enough
		2666	# so it needs to be done right now, right here
		2667	cf::sync_job { prepare_random_map $exit };
		2668	}
		2669
		2670	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2671	my $hp = $exit->stats->hp;
		2672	my $sp = $exit->stats->sp;
		2673
1888	$self->enter_link;	2674	$self->enter_link;
1889		2675
		2676	# if exit is damned, update players death & WoR home-position
		2677	$self->contr->savebed ($slaying, $hp, $sp)
		2678	if $exit->flag (FLAG_DAMNED);
		2679
1890	(async {	2680	(async {
		2681	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2682
1891	$self->deactivate_recursive; # just to be sure	2683	$self->deactivate_recursive; # just to be sure
1892	unless (eval {	2684	unless (eval {
1893	prepare_random_map $exit	2685	$self->goto ($slaying, $hp, $sp);
1894	if $exit->slaying eq "/!";
1895
1896	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1897	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1898		2686
1899	1;	2687	1;
1900	}) {	2688	}) {
1901	$self->message ("Something went wrong deep within the crossfire server. "	2689	$self->message ("Something went wrong deep within the crossfire server. "
1902	. "I'll try to bring you back to the map you were before. "	2690	. "I'll try to bring you back to the map you were before. "
1903	. "Please report this to the dungeon master!",	2691	. "Please report this to the dungeon master!",
1904	cf::NDI_UNIQUE | cf::NDI_RED);	2692	cf::NDI_UNIQUE | cf::NDI_RED);
1905		2693
1906	warn "ERROR in enter_exit: $@";	2694	warn "ERROR in enter_exit: $@";
1907	$self->leave_link;	2695	$self->leave_link;
1908	}	2696	}
1909	})->prio (1);	2697	})->prio (1);
…		…
1922		2710
1923	sub cf::client::send_drawinfo {	2711	sub cf::client::send_drawinfo {
1924	my ($self, $text, $flags) = @_;	2712	my ($self, $text, $flags) = @_;
1925		2713
1926	utf8::encode $text;	2714	utf8::encode $text;
1927	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2715	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1928	}	2716	}
1929		2717
		2718	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2719
		2720	Send a drawinfo or msg packet to the client, formatting the msg for the
		2721	client if neccessary. C<$type> should be a string identifying the type of
		2722	the message, with C<log> being the default. If C<$color> is negative, suppress
		2723	the message unless the client supports the msg packet.
		2724
		2725	=cut
		2726
		2727	# non-persistent channels (usually the info channel)
		2728	our %CHANNEL = (
		2729	"c/identify" => {
		2730	id => "infobox",
		2731	title => "Identify",
		2732	reply => undef,
		2733	tooltip => "Items recently identified",
		2734	},
		2735	"c/examine" => {
		2736	id => "infobox",
		2737	title => "Examine",
		2738	reply => undef,
		2739	tooltip => "Signs and other items you examined",
		2740	},
		2741	"c/book" => {
		2742	id => "infobox",
		2743	title => "Book",
		2744	reply => undef,
		2745	tooltip => "The contents of a note or book",
		2746	},
		2747	"c/lookat" => {
		2748	id => "infobox",
		2749	title => "Look",
		2750	reply => undef,
		2751	tooltip => "What you saw there",
		2752	},
		2753	"c/who" => {
		2754	id => "infobox",
		2755	title => "Players",
		2756	reply => undef,
		2757	tooltip => "Shows players who are currently online",
		2758	},
		2759	"c/body" => {
		2760	id => "infobox",
		2761	title => "Body Parts",
		2762	reply => undef,
		2763	tooltip => "Shows which body parts you posess and are available",
		2764	},
		2765	"c/uptime" => {
		2766	id => "infobox",
		2767	title => "Uptime",
		2768	reply => undef,
		2769	tooltip => "How long the server has been running since last restart",
		2770	},
		2771	"c/mapinfo" => {
		2772	id => "infobox",
		2773	title => "Map Info",
		2774	reply => undef,
		2775	tooltip => "Information related to the maps",
		2776	},
		2777	);
		2778
		2779	sub cf::client::send_msg {
		2780	my ($self, $channel, $msg, $color, @extra) = @_;
		2781
		2782	$msg = $self->pl->expand_cfpod ($msg);
		2783
		2784	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2785
		2786	# check predefined channels, for the benefit of C
		2787	if ($CHANNEL{$channel}) {
		2788	$channel = $CHANNEL{$channel};
		2789
		2790	$self->ext_msg (channel_info => $channel)
		2791	if $self->can_msg;
		2792
		2793	$channel = $channel->{id};
		2794
		2795	} elsif (ref $channel) {
		2796	# send meta info to client, if not yet sent
		2797	unless (exists $self->{channel}{$channel->{id}}) {
		2798	$self->{channel}{$channel->{id}} = $channel;
		2799	$self->ext_msg (channel_info => $channel)
		2800	if $self->can_msg;
		2801	}
		2802
		2803	$channel = $channel->{id};
		2804	}
		2805
		2806	return unless @extra || length $msg;
		2807
		2808	if ($self->can_msg) {
		2809	# default colour, mask it out
		2810	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2811	if $color & cf::NDI_DEF;
		2812
		2813	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2814	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2815	} else {
		2816	if ($color >= 0) {
		2817	# replace some tags by gcfclient-compatible ones
		2818	for ($msg) {
		2819	1 while
		2820	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2821	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2822	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2823	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2824	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2825	}
		2826
		2827	$color &= cf::NDI_COLOR_MASK;
		2828
		2829	utf8::encode $msg;
		2830
		2831	if (0 && $msg =~ /\[/) {
		2832	# COMMAND/INFO
		2833	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2834	} else {
		2835	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2836	$self->send_packet ("drawinfo $color $msg")
		2837	}
		2838	}
		2839	}
		2840	}
		2841
		2842	=item $client->ext_msg ($type, @msg)
		2843
		2844	Sends an ext event to the client.
		2845
		2846	=cut
		2847
		2848	sub cf::client::ext_msg($$@) {
		2849	my ($self, $type, @msg) = @_;
		2850
		2851	if ($self->extcmd == 2) {
		2852	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2853	} elsif ($self->extcmd == 1) { # TODO: remove
		2854	push @msg, msgtype => "event_$type";
		2855	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2856	}
		2857	}
		2858
		2859	=item $client->ext_reply ($msgid, @msg)
		2860
		2861	Sends an ext reply to the client.
		2862
		2863	=cut
		2864
		2865	sub cf::client::ext_reply($$@) {
		2866	my ($self, $id, @msg) = @_;
		2867
		2868	if ($self->extcmd == 2) {
		2869	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2870	} elsif ($self->extcmd == 1) {
		2871	#TODO: version 1, remove
		2872	unshift @msg, msgtype => "reply", msgid => $id;
		2873	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2874	}
		2875	}
1930		2876
1931	=item $success = $client->query ($flags, "text", \&cb)	2877	=item $success = $client->query ($flags, "text", \&cb)
1932		2878
1933	Queues a query to the client, calling the given callback with	2879	Queues a query to the client, calling the given callback with
1934	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2880	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1935	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2881	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1936		2882
1937	Queries can fail, so check the return code. Or don't, as queries will become	2883	Queries can fail, so check the return code. Or don't, as queries will
1938	reliable at some point in the future.	2884	become reliable at some point in the future.
1939		2885
1940	=cut	2886	=cut
1941		2887
1942	sub cf::client::query {	2888	sub cf::client::query {
1943	my ($self, $flags, $text, $cb) = @_;	2889	my ($self, $flags, $text, $cb) = @_;
…		…
1951	utf8::encode $text;	2897	utf8::encode $text;
1952	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2898	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1953		2899
1954	$self->send_packet ($self->{query_queue}[0][0])	2900	$self->send_packet ($self->{query_queue}[0][0])
1955	if @{ $self->{query_queue} } == 1;	2901	if @{ $self->{query_queue} } == 1;
		2902
		2903	1
1956	}	2904	}
1957		2905
1958	cf::client->attach (	2906	cf::client->attach (
		2907	on_connect => sub {
		2908	my ($ns) = @_;
		2909
		2910	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2911	},
1959	on_reply => sub {	2912	on_reply => sub {
1960	my ($ns, $msg) = @_;	2913	my ($ns, $msg) = @_;
1961		2914
1962	# this weird shuffling is so that direct followup queries	2915	# this weird shuffling is so that direct followup queries
1963	# get handled first	2916	# get handled first
1964	my $queue = delete $ns->{query_queue}	2917	my $queue = delete $ns->{query_queue}
1965	or return; # be conservative, not sure how that can happen, but we saw a crash here	2918	or return; # be conservative, not sure how that can happen, but we saw a crash here
1966		2919
1967	(shift @$queue)->[1]->($msg);	2920	(shift @$queue)->[1]->($msg);
		2921	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1968		2922
1969	push @{ $ns->{query_queue} }, @$queue;	2923	push @{ $ns->{query_queue} }, @$queue;
1970		2924
1971	if (@{ $ns->{query_queue} } == @$queue) {	2925	if (@{ $ns->{query_queue} } == @$queue) {
1972	if (@$queue) {	2926	if (@$queue) {
…		…
1974	} else {	2928	} else {
1975	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2929	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1976	}	2930	}
1977	}	2931	}
1978	},	2932	},
		2933	on_exticmd => sub {
		2934	my ($ns, $buf) = @_;
		2935
		2936	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2937
		2938	if (ref $msg) {
		2939	my ($type, $reply, @payload) =
		2940	"ARRAY" eq ref $msg
		2941	? @$msg
		2942	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2943
		2944	my @reply;
		2945
		2946	if (my $cb = $EXTICMD{$type}) {
		2947	@reply = $cb->($ns, @payload);
		2948	}
		2949
		2950	$ns->ext_reply ($reply, @reply)
		2951	if $reply;
		2952
		2953	} else {
		2954	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2955	}
		2956
		2957	cf::override;
		2958	},
1979	);	2959	);
1980		2960
1981	=item $client->async (\&cb)	2961	=item $client->async (\&cb)
1982		2962
1983	Create a new coroutine, running the specified callback. The coroutine will	2963	Create a new coroutine, running the specified callback. The coroutine will
…		…
2024	our $safe = new Safe "safe";	3004	our $safe = new Safe "safe";
2025	our $safe_hole = new Safe::Hole;	3005	our $safe_hole = new Safe::Hole;
2026		3006
2027	$SIG{FPE} = 'IGNORE';	3007	$SIG{FPE} = 'IGNORE';
2028		3008
2029	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3009	$safe->permit_only (Opcode::opset qw(
		3010	:base_core :base_mem :base_orig :base_math
		3011	grepstart grepwhile mapstart mapwhile
		3012	sort time
		3013	));
2030		3014
2031	# here we export the classes and methods available to script code	3015	# here we export the classes and methods available to script code
2032		3016
2033	=pod	3017	=pod
2034		3018
2035	The following fucntions and emthods are available within a safe environment:	3019	The following functions and methods are available within a safe environment:
2036		3020
2037	cf::object contr pay_amount pay_player map	3021	cf::object
		3022	contr pay_amount pay_player map x y force_find force_add destroy
		3023	insert remove name archname title slaying race decrease_ob_nr
		3024
2038	cf::object::player player	3025	cf::object::player
2039	cf::player peaceful	3026	player
2040	cf::map trigger	3027
		3028	cf::player
		3029	peaceful
		3030
		3031	cf::map
		3032	trigger
2041		3033
2042	=cut	3034	=cut
2043		3035
2044	for (	3036	for (
2045	["cf::object" => qw(contr pay_amount pay_player map)],	3037	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3038	insert remove inv name archname title slaying race
		3039	decrease_ob_nr destroy)],
2046	["cf::object::player" => qw(player)],	3040	["cf::object::player" => qw(player)],
2047	["cf::player" => qw(peaceful)],	3041	["cf::player" => qw(peaceful)],
2048	["cf::map" => qw(trigger)],	3042	["cf::map" => qw(trigger)],
2049	) {	3043	) {
2050	no strict 'refs';	3044	no strict 'refs';
…		…
2121	=back	3115	=back
2122		3116
2123	=cut	3117	=cut
2124		3118
2125	#############################################################################	3119	#############################################################################
		3120	# the server's init and main functions
2126		3121
2127	=head2 EXTENSION DATABASE SUPPORT	3122	sub load_facedata($) {
		3123	my ($path) = @_;
2128		3124
2129	Crossfire maintains a very simple database for extension use. It can	3125	# HACK to clear player env face cache, we need some signal framework
2130	currently store anything that can be serialised using Storable, which	3126	# for this (global event?)
2131	excludes objects.	3127	%ext::player_env::MUSIC_FACE_CACHE = ();
2132		3128
2133	The parameter C<$family> should best start with the name of the extension	3129	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2134	using it, it should be unique.
2135		3130
2136	=over 4	3131	warn "loading facedata from $path\n";
2137		3132
2138	=item $hashref = cf::db_get $family	3133	my $facedata;
		3134	0 < aio_load $path, $facedata
		3135	or die "$path: $!";
2139		3136
2140	Return a hashref for use by the extension C<$family>, which can be	3137	$facedata = Coro::Storable::thaw $facedata;
2141	modified. After modifications, you have to call C<cf::db_dirty> or
2142	C<cf::db_sync>.
2143		3138
2144	=item $value = cf::db_get $family => $key	3139	$facedata->{version} == 2
		3140	or cf::cleanup "$path: version mismatch, cannot proceed.";
2145		3141
2146	Returns a single value from the database	3142	# patch in the exptable
2147		3143	$facedata->{resource}{"res/exp_table"} = {
2148	=item cf::db_put $family => $hashref	3144	type => FT_RSRC,
2149		3145	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2150	Stores the given family hashref into the database. Updates are delayed, if
2151	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2152
2153	=item cf::db_put $family => $key => $value
2154
2155	Stores the given C<$value> in the family hash. Updates are delayed, if you
2156	want the data to be synced to disk immediately, use C<cf::db_sync>.
2157
2158	=item cf::db_dirty
2159
2160	Marks the database as dirty, to be updated at a later time.
2161
2162	=item cf::db_sync
2163
2164	Immediately write the database to disk I<if it is dirty>.
2165
2166	=cut
2167
2168	our $DB;
2169
2170	{
2171	my $path = cf::localdir . "/database.pst";
2172
2173	sub db_load() {
2174	$DB = stat $path ? Storable::retrieve $path : { };
2175	}
2176
2177	my $pid;
2178
2179	sub db_save() {
2180	waitpid $pid, 0 if $pid;
2181	if (0 == ($pid = fork)) {
2182	$DB->{_meta}{version} = 1;
2183	Storable::nstore $DB, "$path~";
2184	rename "$path~", $path;
2185	cf::_exit 0 if defined $pid;
2186	}
2187	}
2188
2189	my $dirty;
2190
2191	sub db_sync() {
2192	db_save if $dirty;
2193	undef $dirty;
2194	}
2195
2196	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2197	db_sync;
2198	});	3146	};
		3147	cf::cede_to_tick;
2199		3148
2200	sub db_dirty() {
2201	$dirty = 1;
2202	$idle->start;
2203	}	3149	{
		3150	my $faces = $facedata->{faceinfo};
2204		3151
2205	sub db_get($;$) {	3152	while (my ($face, $info) = each %$faces) {
2206	@_ >= 2	3153	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2207	? $DB->{$_[0]}{$_[1]}	3154	cf::face::set_visibility $idx, $info->{visibility};
2208	: ($DB->{$_[0]} ||= { })	3155	cf::face::set_magicmap $idx, $info->{magicmap};
2209	}	3156	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3157	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2210		3158
2211	sub db_put($$;$) {	3159	cf::cede_to_tick;
2212	if (@_ >= 3) {
2213	$DB->{$_[0]}{$_[1]} = $_[2];
2214	} else {
2215	$DB->{$_[0]} = $_[1];
2216	}
2217	db_dirty;
2218	}
2219
2220	cf::global->attach (
2221	prio => 10000,
2222	on_cleanup => sub {
2223	db_sync;
2224	},	3160	}
2225	);
2226	}
2227		3161
2228	#############################################################################	3162	while (my ($face, $info) = each %$faces) {
2229	# the server's main()	3163	next unless $info->{smooth};
		3164	my $idx = cf::face::find $face
		3165	or next;
		3166	if (my $smooth = cf::face::find $info->{smooth}) {
		3167	cf::face::set_smooth $idx, $smooth;
		3168	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3169	} else {
		3170	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3171	}
2230		3172
2231	sub cfg_load {	3173	cf::cede_to_tick;
		3174	}
		3175	}
		3176
		3177	{
		3178	my $anims = $facedata->{animinfo};
		3179
		3180	while (my ($anim, $info) = each %$anims) {
		3181	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3182	cf::cede_to_tick;
		3183	}
		3184
		3185	cf::anim::invalidate_all; # d'oh
		3186	}
		3187
		3188	{
		3189	# TODO: for gcfclient pleasure, we should give resources
		3190	# that gcfclient doesn't grok a >10000 face index.
		3191	my $res = $facedata->{resource};
		3192
		3193	my $soundconf = delete $res->{"res/sound.conf"};
		3194
		3195	while (my ($name, $info) = each %$res) {
		3196	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3197	my $data;
		3198
		3199	if ($info->{type} & 1) {
		3200	# prepend meta info
		3201
		3202	my $meta = $enc->encode ({
		3203	name => $name,
		3204	%{ $info->{meta} || {} },
		3205	});
		3206
		3207	$data = pack "(w/a*)*", $meta, $info->{data};
		3208	} else {
		3209	$data = $info->{data};
		3210	}
		3211
		3212	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3213	cf::face::set_type $idx, $info->{type};
		3214
		3215	cf::cede_to_tick;
		3216	}
		3217
		3218	if ($soundconf) {
		3219	$soundconf = $enc->decode (delete $soundconf->{data});
		3220
		3221	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3222	my $sound = $soundconf->{compat}[$_]
		3223	or next;
		3224
		3225	my $face = cf::face::find "sound/$sound->[1]";
		3226	cf::sound::set $sound->[0] => $face;
		3227	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3228	}
		3229
		3230	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3231	my $face = cf::face::find "sound/$v";
		3232	cf::sound::set $k => $face;
		3233	}
		3234	}
		3235	}
		3236
		3237	1
		3238	}
		3239
		3240	register_exticmd fx_want => sub {
		3241	my ($ns, $want) = @_;
		3242
		3243	while (my ($k, $v) = each %$want) {
		3244	$ns->fx_want ($k, $v);
		3245	}
		3246	};
		3247
		3248	sub reload_regions {
		3249	# HACK to clear player env face cache, we need some signal framework
		3250	# for this (global event?)
		3251	%ext::player_env::MUSIC_FACE_CACHE = ();
		3252
		3253	load_resource_file "$MAPDIR/regions"
		3254	or die "unable to load regions file\n";
		3255
		3256	for (cf::region::list) {
		3257	$_->{match} = qr/$_->{match}/
		3258	if exists $_->{match};
		3259	}
		3260	}
		3261
		3262	sub reload_facedata {
		3263	load_facedata "$DATADIR/facedata"
		3264	or die "unable to load facedata\n";
		3265	}
		3266
		3267	sub reload_archetypes {
		3268	load_resource_file "$DATADIR/archetypes"
		3269	or die "unable to load archetypes\n";
		3270	#d# NEED to laod twice to resolve forward references
		3271	# this really needs to be done in an extra post-pass
		3272	# (which needs to be synchronous, so solve it differently)
		3273	load_resource_file "$DATADIR/archetypes"
		3274	or die "unable to load archetypes\n";
		3275	}
		3276
		3277	sub reload_treasures {
		3278	load_resource_file "$DATADIR/treasures"
		3279	or die "unable to load treasurelists\n";
		3280	}
		3281
		3282	sub reload_resources {
		3283	warn "reloading resource files...\n";
		3284
		3285	reload_regions;
		3286	reload_facedata;
		3287	#reload_archetypes;#d#
		3288	reload_archetypes;
		3289	reload_treasures;
		3290
		3291	warn "finished reloading resource files\n";
		3292	}
		3293
		3294	sub init {
		3295	reload_resources;
		3296	}
		3297
		3298	sub reload_config {
2232	open my $fh, "<:utf8", cf::confdir . "/config"	3299	open my $fh, "<:utf8", "$CONFDIR/config"
2233	or return;	3300	or return;
2234		3301
2235	local $/;	3302	local $/;
2236	*CFG = YAML::Syck::Load <$fh>;	3303	*CFG = YAML::Syck::Load <$fh>;
2237		3304
…		…
2251		3318
2252	sub main {	3319	sub main {
2253	# we must not ever block the main coroutine	3320	# we must not ever block the main coroutine
2254	local $Coro::idle = sub {	3321	local $Coro::idle = sub {
2255	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3322	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2256	async { Event::one_event };	3323	(async {
		3324	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3325	EV::loop EV::LOOP_ONESHOT;
		3326	})->prio (Coro::PRIO_MAX);
2257	};	3327	};
2258		3328
2259	cfg_load;	3329	reload_config;
2260	db_load;	3330	db_init;
2261	load_extensions;	3331	load_extensions;
		3332
		3333	$TICK_WATCHER->start;
		3334	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
2262	Event::loop;	3335	EV::loop;
2263	}	3336	}
2264		3337
2265	#############################################################################	3338	#############################################################################
2266	# initialisation and cleanup	3339	# initialisation and cleanup
2267		3340
2268	# install some emergency cleanup handlers	3341	# install some emergency cleanup handlers
2269	BEGIN {	3342	BEGIN {
		3343	our %SIGWATCHER = ();
2270	for my $signal (qw(INT HUP TERM)) {	3344	for my $signal (qw(INT HUP TERM)) {
2271	Event->signal (	3345	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2272	data => WF_AUTOCANCEL,
2273	signal => $signal,
2274	cb => sub {
2275	cf::cleanup "SIG$signal";	3346	cf::cleanup "SIG$signal";
2276	},
2277	);	3347	};
		3348	}
		3349	}
		3350
		3351	sub write_runtime {
		3352	my $runtime = "$LOCALDIR/runtime";
		3353
		3354	# first touch the runtime file to show we are still running:
		3355	# the fsync below can take a very very long time.
		3356
		3357	IO::AIO::aio_utime $runtime, undef, undef;
		3358
		3359	my $guard = cf::lock_acquire "write_runtime";
		3360
		3361	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3362	or return;
		3363
		3364	my $value = $cf::RUNTIME + 90 + 10;
		3365	# 10 is the runtime save interval, for a monotonic clock
		3366	# 60 allows for the watchdog to kill the server.
		3367
		3368	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3369	and return;
		3370
		3371	# always fsync - this file is important
		3372	aio_fsync $fh
		3373	and return;
		3374
		3375	# touch it again to show we are up-to-date
		3376	aio_utime $fh, undef, undef;
		3377
		3378	close $fh
		3379	or return;
		3380
		3381	aio_rename "$runtime~", $runtime
		3382	and return;
		3383
		3384	warn "runtime file written.\n";
		3385
2278	}	3386	1
2279	}	3387	}
2280		3388
2281	sub emergency_save() {	3389	sub emergency_save() {
2282	my $freeze_guard = cf::freeze_mainloop;	3390	my $freeze_guard = cf::freeze_mainloop;
2283		3391
2284	warn "enter emergency perl save\n";	3392	warn "enter emergency perl save\n";
2285		3393
2286	cf::sync_job {	3394	cf::sync_job {
2287	# use a peculiar iteration method to avoid tripping on perl	3395	# use a peculiar iteration method to avoid tripping on perl
2288	# refcount bugs in for. also avoids problems with players	3396	# refcount bugs in for. also avoids problems with players
2289	# and maps saved/Destroyed asynchronously.	3397	# and maps saved/destroyed asynchronously.
2290	warn "begin emergency player save\n";	3398	warn "begin emergency player save\n";
2291	for my $login (keys %cf::PLAYER) {	3399	for my $login (keys %cf::PLAYER) {
2292	my $pl = $cf::PLAYER{$login} or next;	3400	my $pl = $cf::PLAYER{$login} or next;
2293	$pl->valid or next;	3401	$pl->valid or next;
		3402	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2294	$pl->save;	3403	$pl->save;
2295	}	3404	}
2296	warn "end emergency player save\n";	3405	warn "end emergency player save\n";
2297		3406
2298	warn "begin emergency map save\n";	3407	warn "begin emergency map save\n";
…		…
2300	my $map = $cf::MAP{$path} or next;	3409	my $map = $cf::MAP{$path} or next;
2301	$map->valid or next;	3410	$map->valid or next;
2302	$map->save;	3411	$map->save;
2303	}	3412	}
2304	warn "end emergency map save\n";	3413	warn "end emergency map save\n";
		3414
		3415	warn "begin emergency database checkpoint\n";
		3416	BDB::db_env_txn_checkpoint $DB_ENV;
		3417	warn "end emergency database checkpoint\n";
2305	};	3418	};
2306		3419
2307	warn "leave emergency perl save\n";	3420	warn "leave emergency perl save\n";
2308	}	3421	}
2309		3422
		3423	sub post_cleanup {
		3424	my ($make_core) = @_;
		3425
		3426	warn Carp::longmess "post_cleanup backtrace"
		3427	if $make_core;
		3428	}
		3429
2310	sub reload() {	3430	sub do_reload_perl() {
2311	# can/must only be called in main	3431	# can/must only be called in main
2312	if ($Coro::current != $Coro::main) {	3432	if ($Coro::current != $Coro::main) {
2313	warn "can only reload from main coroutine\n";	3433	warn "can only reload from main coroutine";
2314	return;	3434	return;
2315	}	3435	}
2316		3436
2317	warn "reloading...";	3437	warn "reloading...";
2318		3438
2319	warn "freezing server";	3439	warn "entering sync_job";
2320	my $guard = freeze_mainloop;	3440
		3441	cf::sync_job {
		3442	cf::write_runtime; # external watchdog should not bark
2321	cf::emergency_save;	3443	cf::emergency_save;
		3444	cf::write_runtime; # external watchdog should not bark
2322		3445
2323	warn "sync database to disk";	3446	warn "syncing database to disk";
2324	cf::db_sync;	3447	BDB::db_env_txn_checkpoint $DB_ENV;
2325	IO::AIO::flush;
2326		3448
2327	eval {
2328	# if anything goes wrong in here, we should simply crash as we already saved	3449	# if anything goes wrong in here, we should simply crash as we already saved
2329		3450
2330	warn "cancel all watchers";	3451	warn "flushing outstanding aio requests";
2331	for (Event::all_watchers) {	3452	for (;;) {
2332	$_->cancel if $_->data & WF_AUTOCANCEL;	3453	BDB::flush;
		3454	IO::AIO::flush;
		3455	Coro::cede_notself;
		3456	last unless IO::AIO::nreqs || BDB::nreqs;
		3457	warn "iterate...";
2333	}	3458	}
2334		3459
		3460	++$RELOAD;
		3461
2335	warn "cancel all extension coros";	3462	warn "cancelling all extension coros";
2336	$_->cancel for values %EXT_CORO;	3463	$_->cancel for values %EXT_CORO;
2337	%EXT_CORO = ();	3464	%EXT_CORO = ();
2338		3465
2339	warn "remove commands";	3466	warn "removing commands";
2340	%COMMAND = ();	3467	%COMMAND = ();
2341		3468
2342	warn "remove ext commands";	3469	warn "removing ext/exti commands";
2343	%EXTCMD = ();	3470	%EXTCMD = ();
		3471	%EXTICMD = ();
2344		3472
2345	warn "unload/nuke all extensions";	3473	warn "unloading/nuking all extensions";
2346	for my $pkg (@EXTS) {	3474	for my $pkg (@EXTS) {
2347	warn "... unloading $pkg";	3475	warn "... unloading $pkg";
2348		3476
2349	if (my $cb = $pkg->can ("unload")) {	3477	if (my $cb = $pkg->can ("unload")) {
2350	eval {	3478	eval {
…		…
2355		3483
2356	warn "... nuking $pkg";	3484	warn "... nuking $pkg";
2357	Symbol::delete_package $pkg;	3485	Symbol::delete_package $pkg;
2358	}	3486	}
2359		3487
2360	warn "unload all perl modules loaded from $LIBDIR";	3488	warn "unloading all perl modules loaded from $LIBDIR";
2361	while (my ($k, $v) = each %INC) {	3489	while (my ($k, $v) = each %INC) {
2362	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3490	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2363		3491
2364	warn "removing <$k>";	3492	warn "... unloading $k";
2365	delete $INC{$k};	3493	delete $INC{$k};
2366		3494
2367	$k =~ s/\.pm$//;	3495	$k =~ s/\.pm$//;
2368	$k =~ s/\//::/g;	3496	$k =~ s/\//::/g;
2369		3497
…		…
2372	}	3500	}
2373		3501
2374	Symbol::delete_package $k;	3502	Symbol::delete_package $k;
2375	}	3503	}
2376		3504
2377	warn "get rid of safe::, as good as possible";	3505	warn "getting rid of safe::, as good as possible";
2378	Symbol::delete_package "safe::$_"	3506	Symbol::delete_package "safe::$_"
2379	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3507	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2380		3508
2381	warn "unload cf.pm \"a bit\"";	3509	warn "unloading cf.pm \"a bit\"";
2382	delete $INC{"cf.pm"};	3510	delete $INC{"cf.pm"};
		3511	delete $INC{"cf/pod.pm"};
2383		3512
2384	# don't, removes xs symbols, too,	3513	# don't, removes xs symbols, too,
2385	# and global variables created in xs	3514	# and global variables created in xs
2386	#Symbol::delete_package __PACKAGE__;	3515	#Symbol::delete_package __PACKAGE__;
2387		3516
		3517	warn "unload completed, starting to reload now";
		3518
2388	warn "reloading cf.pm";	3519	warn "reloading cf.pm";
2389	require cf;	3520	require cf;
2390	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3521	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2391		3522
2392	warn "load config and database again";	3523	warn "loading config and database again";
2393	cf::cfg_load;	3524	cf::reload_config;
2394	cf::db_load;
2395		3525
2396	warn "load extensions";	3526	warn "loading extensions";
2397	cf::load_extensions;	3527	cf::load_extensions;
2398		3528
2399	warn "reattach attachments to objects/players";	3529	warn "reattaching attachments to objects/players";
2400	_global_reattach;	3530	_global_reattach; # objects, sockets
2401	warn "reattach attachments to maps";	3531	warn "reattaching attachments to maps";
2402	reattach $_ for values %MAP;	3532	reattach $_ for values %MAP;
2403	};	3533	warn "reattaching attachments to players";
		3534	reattach $_ for values %PLAYER;
2404		3535
2405	if ($@) {	3536	warn "leaving sync_job";
		3537
		3538	1
		3539	} or do {
2406	warn $@;	3540	warn $@;
2407	warn "error while reloading, exiting.";	3541	warn "error while reloading, exiting.";
2408	exit 1;	3542	exit 1;
2409	}	3543	};
2410		3544
2411	warn "reloaded";	3545	warn "reloaded";
2412	};	3546	};
2413		3547
2414	#############################################################################	3548	our $RELOAD_WATCHER; # used only during reload
2415		3549
2416	unless ($LINK_MAP) {	3550	sub reload_perl() {
2417	$LINK_MAP = cf::map::new;	3551	# doing reload synchronously and two reloads happen back-to-back,
		3552	# coro crashes during coro_state_free->destroy here.
2418		3553
2419	$LINK_MAP->width (41);	3554	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
2420	$LINK_MAP->height (41);	3555	undef $RELOAD_WATCHER;
2421	$LINK_MAP->alloc;	3556	do_reload_perl;
2422	$LINK_MAP->path ("{link}");	3557	};
2423	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2424	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2425
2426	# dirty hack because... archetypes are not yet loaded
2427	Event->timer (
2428	after => 10,
2429	cb => sub {
2430	$_[0]->w->cancel;
2431
2432	# provide some exits "home"
2433	my $exit = cf::object::new "exit";
2434
2435	$exit->slaying ($EMERGENCY_POSITION->[0]);
2436	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2437	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2438
2439	$LINK_MAP->insert ($exit->clone, 19, 19);
2440	$LINK_MAP->insert ($exit->clone, 19, 20);
2441	$LINK_MAP->insert ($exit->clone, 19, 21);
2442	$LINK_MAP->insert ($exit->clone, 20, 19);
2443	$LINK_MAP->insert ($exit->clone, 20, 21);
2444	$LINK_MAP->insert ($exit->clone, 21, 19);
2445	$LINK_MAP->insert ($exit->clone, 21, 20);
2446	$LINK_MAP->insert ($exit->clone, 21, 21);
2447
2448	$exit->destroy;
2449	});
2450
2451	$LINK_MAP->{deny_save} = 1;
2452	$LINK_MAP->{deny_reset} = 1;
2453
2454	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2455	}	3558	}
2456		3559
2457	register_command "reload" => sub {	3560	register_command "reload" => sub {
2458	my ($who, $arg) = @_;	3561	my ($who, $arg) = @_;
2459		3562
2460	if ($who->flag (FLAG_WIZ)) {	3563	if ($who->flag (FLAG_WIZ)) {
2461	$who->message ("start of reload.");
2462	reload;
2463	$who->message ("end of reload.");	3564	$who->message ("reloading server.");
		3565	async {
		3566	$Coro::current->{desc} = "perl_reload";
		3567	reload_perl;
		3568	};
2464	}	3569	}
2465	};	3570	};
2466		3571
2467	unshift @INC, $LIBDIR;	3572	unshift @INC, $LIBDIR;
2468		3573
2469	$TICK_WATCHER = Event->timer (	3574	my $bug_warning = 0;
2470	reentrant => 0,
2471	prio => 0,
2472	at => $NEXT_TICK || $TICK,
2473	data => WF_AUTOCANCEL,
2474	cb => sub {
2475	$NOW = Event::time;
2476		3575
		3576	our @WAIT_FOR_TICK;
		3577	our @WAIT_FOR_TICK_BEGIN;
		3578
		3579	sub wait_for_tick {
		3580	return unless $TICK_WATCHER->is_active;
		3581	return if $Coro::current == $Coro::main;
		3582
		3583	my $signal = new Coro::Signal;
		3584	push @WAIT_FOR_TICK, $signal;
		3585	$signal->wait;
		3586	}
		3587
		3588	sub wait_for_tick_begin {
		3589	return unless $TICK_WATCHER->is_active;
		3590	return if $Coro::current == $Coro::main;
		3591
		3592	my $signal = new Coro::Signal;
		3593	push @WAIT_FOR_TICK_BEGIN, $signal;
		3594	$signal->wait;
		3595	}
		3596
		3597	$TICK_WATCHER = EV::periodic_ns 0, $TICK, 0, sub {
		3598	if ($Coro::current != $Coro::main) {
		3599	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3600	unless ++$bug_warning > 10;
		3601	return;
		3602	}
		3603
		3604	$NOW = $tick_start = EV::now;
		3605
2477	cf::server_tick; # one server iteration	3606	cf::server_tick; # one server iteration
		3607
2478	$RUNTIME += $TICK;	3608	$RUNTIME += $TICK;
2479	$NEXT_TICK += $TICK;	3609	$NEXT_TICK += $TICK;
2480		3610
2481	$WAIT_FOR_TICK->broadcast;	3611	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2482	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3612	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2483		3613	Coro::async_pool {
2484	# if we are delayed by four ticks or more, skip them all	3614	$Coro::current->{desc} = "runtime saver";
2485	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2486
2487	$TICK_WATCHER->at ($NEXT_TICK);
2488	$TICK_WATCHER->start;
2489	},
2490	);
2491
2492	IO::AIO::max_poll_time $TICK * 0.2;
2493
2494	Event->io (
2495	fd => IO::AIO::poll_fileno,
2496	poll => 'r',
2497	prio => 5,
2498	data => WF_AUTOCANCEL,
2499	cb => \&IO::AIO::poll_cb,
2500	);
2501
2502	Event->timer (
2503	data => WF_AUTOCANCEL,
2504	after => 0,
2505	interval => 10,
2506	cb => sub {
2507	(Coro::unblock_sub {
2508	write_runtime	3615	write_runtime
2509	or warn "ERROR: unable to write runtime file: $!";	3616	or warn "ERROR: unable to write runtime file: $!";
2510	})->();	3617	};
2511	},	3618	}
2512	);	3619
		3620	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3621	$sig->send;
		3622	}
		3623	while (my $sig = shift @WAIT_FOR_TICK) {
		3624	$sig->send;
		3625	}
		3626
		3627	$LOAD = ($NOW - $tick_start) / $TICK;
		3628	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3629
		3630	_post_tick;
		3631	};
		3632	$TICK_WATCHER->priority (EV::MAXPRI);
		3633
		3634	{
		3635	# configure BDB
		3636
		3637	BDB::min_parallel 8;
		3638	BDB::max_poll_reqs $TICK * 0.1;
		3639
		3640	unless ($DB_ENV) {
		3641	$DB_ENV = BDB::db_env_create;
		3642	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3643	| BDB::LOG_AUTOREMOVE, 1);
		3644	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3645	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3646
		3647	cf::sync_job {
		3648	eval {
		3649	BDB::db_env_open
		3650	$DB_ENV,
		3651	$BDBDIR,
		3652	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3653	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3654	0666;
		3655
		3656	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3657	};
		3658
		3659	cf::cleanup "db_env_open(db): $@" if $@;
		3660	};
		3661	}
		3662
		3663	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3664	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3665	};
		3666	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3667	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3668	};
		3669	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3670	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3671	};
		3672	}
		3673
		3674	{
		3675	# configure IO::AIO
		3676
		3677	IO::AIO::min_parallel 8;
		3678	IO::AIO::max_poll_time $TICK * 0.1;
		3679	}
		3680
		3681	my $_log_backtrace;
		3682
		3683	sub _log_backtrace {
		3684	my ($msg, @addr) = @_;
		3685
		3686	$msg =~ s/\n//;
		3687
		3688	# limit the # of concurrent backtraces
		3689	if ($_log_backtrace < 2) {
		3690	++$_log_backtrace;
		3691	async {
		3692	$Coro::current->{desc} = "abt $msg";
		3693
		3694	my @bt = fork_call {
		3695	@addr = map { sprintf "%x", $_ } @addr;
		3696	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3697	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3698	or die "addr2line: $!";
		3699
		3700	my @funcs;
		3701	my @res = <$fh>;
		3702	chomp for @res;
		3703	while (@res) {
		3704	my ($func, $line) = splice @res, 0, 2, ();
		3705	push @funcs, "[$func] $line";
		3706	}
		3707
		3708	@funcs
		3709	};
		3710
		3711	LOG llevInfo, "[ABT] $msg\n";
		3712	LOG llevInfo, "[ABT] $_\n" for @bt;
		3713	--$_log_backtrace;
		3714	};
		3715	} else {
		3716	LOG llevInfo, "[ABT] $msg\n";
		3717	LOG llevInfo, "[ABT] [suppressed]\n";
		3718	}
		3719	}
		3720
		3721	# load additional modules
		3722	use cf::pod;
2513		3723
2514	END { cf::emergency_save }	3724	END { cf::emergency_save }
2515		3725
2516	1	3726	1
2517		3727

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