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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.161 by root, Thu Jan 11 00:16:58 2007 UTC vs.
Revision 1.396 by root, Wed Nov 14 08:09:46 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 4.1 ();
		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::Storable;
		24	use Coro::Util ();
19		25
		26	use JSON::XS ();
		27	use BDB ();
20	use Data::Dumper;	28	use Data::Dumper;
21	use Digest::MD5;	29	use Digest::MD5;
22	use Fcntl;	30	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.51 ();
25	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
26		36
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	37	# configure various modules to our taste
28		38	#
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	39	$Storable::canonical = 1; # reduce rsync transfers
		40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
30		42
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	43	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	44	$YAML::Syck::ImplicitUnicode = 1;
33		45
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	46	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		47
		48	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		49
36	our %COMMAND = ();	50	our %COMMAND = ();
37	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
38		52
39	our @EXTS = (); # list of extension package names	53	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	56	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	57	our %EXT_MAP = (); # pluggable maps
43		58
		59	our $RELOAD; # number of reloads so far
44	our @EVENT;	60	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		61
47	our $TICK = MAX_TIME * 1e-6;	62	our $CONFDIR = confdir;
		63	our $DATADIR = datadir;
		64	our $LIBDIR = "$DATADIR/ext";
		65	our $PODDIR = "$DATADIR/pod";
		66	our $MAPDIR = "$DATADIR/" . mapdir;
		67	our $LOCALDIR = localdir;
		68	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		69	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		70	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		71	our $RANDOMDIR = "$LOCALDIR/random";
		72	our $BDBDIR = "$LOCALDIR/db";
		73
		74	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48	our $TICK_WATCHER;	75	our $TICK_WATCHER;
		76	our $AIO_POLL_WATCHER;
		77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
49	our $NEXT_TICK;	78	our $NEXT_TICK;
50	our $NOW;	79	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;
56		92
57	our %PLAYER; # all users	93	our (%PLAYER, %PLAYER_LOADING); # all users
58	our %MAP; # all maps	94	our (%MAP, %MAP_LOADING ); # all maps
59	our $LINK_MAP; # the special {link} map	95	our $LINK_MAP; # the special {link} map, which is always available
60	our $RANDOM_MAPS = cf::localdir . "/random";
61		96
62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	97	# 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;	98	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		99
		100	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		101	our $LOADAVG; # same thing, but with alpha-smoothing
		102	our $tick_start; # for load detecting purposes
64		103
65	binmode STDOUT;	104	binmode STDOUT;
66	binmode STDERR;	105	binmode STDERR;
67		106
68	# read virtual server time, if available	107	# read virtual server time, if available
69	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	108	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
70	open my $fh, "<", cf::localdir . "/runtime"	109	open my $fh, "<", "$LOCALDIR/runtime"
71	or die "unable to read runtime file: $!";	110	or die "unable to read runtime file: $!";
72	$RUNTIME = <$fh> + 0.;	111	$RUNTIME = <$fh> + 0.;
73	}	112	}
74		113
75	mkdir cf::localdir;	114	mkdir $_
76	mkdir cf::localdir . "/" . cf::playerdir;	115	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
77	mkdir cf::localdir . "/" . cf::tmpdir;
78	mkdir cf::localdir . "/" . cf::uniquedir;
79	mkdir $RANDOM_MAPS;
80		116
81	# a special map that is always available
82	our $LINK_MAP;
83	our $EMERGENCY_POSITION;	117	our $EMERGENCY_POSITION;
		118
		119	sub cf::map::normalise;
84		120
85	#############################################################################	121	#############################################################################
86		122
87	=head2 GLOBAL VARIABLES	123	=head2 GLOBAL VARIABLES
88		124
…		…
95	=item $cf::RUNTIME	131	=item $cf::RUNTIME
96		132
97	The time this server has run, starts at 0 and is increased by $cf::TICK on	133	The time this server has run, starts at 0 and is increased by $cf::TICK on
98	every server tick.	134	every server tick.
99		135
100	=item $cf::LIBDIR	136	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		137	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		138	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
101		139
102	The perl library directory, where extensions and cf-specific modules can	140	Various directories - "/etc", read-only install directory, perl-library
103	be found. It will be added to C<@INC> automatically.	141	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		142	unique-items directory, player file directory, random maps directory and
		143	database environment.
104		144
105	=item $cf::NOW	145	=item $cf::NOW
106		146
107	The time of the last (current) server tick.	147	The time of the last (current) server tick.
108		148
109	=item $cf::TICK	149	=item $cf::TICK
110		150
111	The interval between server ticks, in seconds.	151	The interval between server ticks, in seconds.
112		152
		153	=item $cf::LOADAVG
		154
		155	The current CPU load on the server (alpha-smoothed), as a value between 0
		156	(none) and 1 (overloaded), indicating how much time is spent on processing
		157	objects per tick. Healthy values are < 0.5.
		158
		159	=item $cf::LOAD
		160
		161	The raw value load value from the last tick.
		162
113	=item %cf::CFG	163	=item %cf::CFG
114		164
115	Configuration for the server, loaded from C</etc/crossfire/config>, or	165	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
116	from wherever your confdir points to.	166	from wherever your confdir points to.
117		167
118	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	168	=item cf::wait_for_tick, cf::wait_for_tick_begin
119		169
120	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	170	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	171	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	172	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.	173
		174	=item @cf::INVOKE_RESULTS
		175
		176	This array contains the results of the last C<invoke ()> call. When
		177	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		178	that call.
124		179
125	=back	180	=back
126		181
127	=cut	182	=cut
128		183
129	BEGIN {	184	BEGIN {
130	*CORE::GLOBAL::warn = sub {	185	*CORE::GLOBAL::warn = sub {
131	my $msg = join "", @_;	186	my $msg = join "", @_;
132	utf8::encode $msg;
133		187
134	$msg .= "\n"	188	$msg .= "\n"
135	unless $msg =~ /\n$/;	189	unless $msg =~ /\n$/;
		190
		191	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
136		192
137	LOG llevError, $msg;	193	LOG llevError, $msg;
138	};	194	};
139	}	195	}
140		196
141	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	197	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
142	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	198	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
143	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	199	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
144	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	200	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
145	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	201	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		202	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
146	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	203	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
147		204
148	# we bless all objects into (empty) derived classes to force a method lookup	205	# we bless all objects into (empty) derived classes to force a method lookup
149	# within the Safe compartment.	206	# within the Safe compartment.
150	for my $pkg (qw(	207	for my $pkg (qw(
151	cf::global cf::attachable	208	cf::global cf::attachable
…		…
156	)) {	213	)) {
157	no strict 'refs';	214	no strict 'refs';
158	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	215	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
159	}	216	}
160		217
161	$Event::DIED = sub {	218	$EV::DIED = sub {
162	warn "error in event callback: @_";	219	warn "error in event callback: @_";
163	};	220	};
		221
		222	#############################################################################
164		223
165	=head2 UTILITY FUNCTIONS	224	=head2 UTILITY FUNCTIONS
166		225
167	=over 4	226	=over 4
168		227
…		…
187	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	246	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
188	$d	247	$d
189	} || "[unable to dump $_[0]: '$@']";	248	} || "[unable to dump $_[0]: '$@']";
190	}	249	}
191		250
192	use JSON::Syck (); # TODO# replace by JSON::PC once working
193
194	=item $ref = cf::from_json $json	251	=item $ref = cf::from_json $json
195		252
196	Converts a JSON string into the corresponding perl data structure.	253	Converts a JSON string into the corresponding perl data structure.
197		254
198	=cut
199
200	sub from_json($) {
201	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
202	JSON::Syck::Load $_[0]
203	}
204
205	=item $json = cf::to_json $ref	255	=item $json = cf::to_json $ref
206		256
207	Converts a perl data structure into its JSON representation.	257	Converts a perl data structure into its JSON representation.
208		258
209	=cut	259	=cut
210		260
211	sub to_json($) {	261	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
212	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	262
213	JSON::Syck::Dump $_[0]	263	sub to_json ($) { $json_coder->encode ($_[0]) }
214	}	264	sub from_json ($) { $json_coder->decode ($_[0]) }
215		265
216	=item cf::lock_wait $string	266	=item cf::lock_wait $string
217		267
218	Wait until the given lock is available. See cf::lock_acquire.	268	Wait until the given lock is available. See cf::lock_acquire.
219		269
…		…
222	Wait until the given lock is available and then acquires it and returns	272	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,	273	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	274	for example when the coroutine gets canceled), the lock is automatically
225	returned.	275	returned.
226		276
		277	Locks are *not* recursive, locking from the same coro twice results in a
		278	deadlocked coro.
		279
227	Lock names should begin with a unique identifier (for example, cf::map::find	280	Lock names should begin with a unique identifier (for example, cf::map::find
228	uses map_find and cf::map::load uses map_load).	281	uses map_find and cf::map::load uses map_load).
229		282
		283	=item $locked = cf::lock_active $string
		284
		285	Return true if the lock is currently active, i.e. somebody has locked it.
		286
230	=cut	287	=cut
231		288
232	our %LOCK;	289	our %LOCK;
		290	our %LOCKER;#d#
233		291
234	sub lock_wait($) {	292	sub lock_wait($) {
235	my ($key) = @_;	293	my ($key) = @_;
		294
		295	if ($LOCKER{$key} == $Coro::current) {#d#
		296	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		297	return;#d#
		298	}#d#
236		299
237	# wait for lock, if any	300	# wait for lock, if any
238	while ($LOCK{$key}) {	301	while ($LOCK{$key}) {
239	push @{ $LOCK{$key} }, $Coro::current;	302	push @{ $LOCK{$key} }, $Coro::current;
240	Coro::schedule;	303	Coro::schedule;
…		…
246		309
247	# wait, to be sure we are not locked	310	# wait, to be sure we are not locked
248	lock_wait $key;	311	lock_wait $key;
249		312
250	$LOCK{$key} = [];	313	$LOCK{$key} = [];
		314	$LOCKER{$key} = $Coro::current;#d#
251		315
252	Coro::guard {	316	Coro::guard {
		317	delete $LOCKER{$key};#d#
253	# wake up all waiters, to be on the safe side	318	# wake up all waiters, to be on the safe side
254	$_->ready for @{ delete $LOCK{$key} };	319	$_->ready for @{ delete $LOCK{$key} };
255	}	320	}
256	}	321	}
257		322
		323	sub lock_active($) {
		324	my ($key) = @_;
		325
		326	! ! $LOCK{$key}
		327	}
		328
258	sub freeze_mainloop {	329	sub freeze_mainloop {
259	return unless $TICK_WATCHER->is_active;	330	return unless $TICK_WATCHER->is_active;
260		331
261	my $guard = Coro::guard { $TICK_WATCHER->start };	332	my $guard = Coro::guard {
		333	$TICK_WATCHER->start;
		334	};
262	$TICK_WATCHER->stop;	335	$TICK_WATCHER->stop;
263	$guard	336	$guard
		337	}
		338
		339	=item cf::periodic $interval, $cb
		340
		341	Like EV::periodic, but randomly selects a starting point so that the actions
		342	get spread over timer.
		343
		344	=cut
		345
		346	sub periodic($$) {
		347	my ($interval, $cb) = @_;
		348
		349	my $start = rand List::Util::min 180, $interval;
		350
		351	EV::periodic $start, $interval, 0, $cb
		352	}
		353
		354	=item cf::get_slot $time[, $priority[, $name]]
		355
		356	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		357	This call blocks and returns only when you have at least C<$time> seconds
		358	of cpu time till the next tick. The slot is only valid till the next cede.
		359
		360	The optional C<$name> can be used to identify the job to run. It might be
		361	used for statistical purposes and should identify the same time-class.
		362
		363	Useful for short background jobs.
		364
		365	=cut
		366
		367	our @SLOT_QUEUE;
		368	our $SLOT_QUEUE;
		369
		370	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		371	$SLOT_QUEUE = Coro::async {
		372	$Coro::current->desc ("timeslot manager");
		373
		374	my $signal = new Coro::Signal;
		375
		376	while () {
		377	next_job:
		378	my $avail = cf::till_tick;
		379	if ($avail > 0.01) {
		380	for (0 .. $#SLOT_QUEUE) {
		381	if ($SLOT_QUEUE[$_][0] < $avail) {
		382	my $job = splice @SLOT_QUEUE, $_, 1, ();
		383	$job->[2]->send;
		384	Coro::cede;
		385	goto next_job;
		386	}
		387	}
		388	}
		389
		390	if (@SLOT_QUEUE) {
		391	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		392	push @cf::WAIT_FOR_TICK, $signal;
		393	$signal->wait;
		394	} else {
		395	Coro::schedule;
		396	}
		397	}
		398	};
		399
		400	sub get_slot($;$$) {
		401	my ($time, $pri, $name) = @_;
		402
		403	$time = $TICK * .6 if $time > $TICK * .6;
		404	my $sig = new Coro::Signal;
		405
		406	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		407	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		408	$SLOT_QUEUE->ready;
		409	$sig->wait;
264	}	410	}
265		411
266	=item cf::async { BLOCK }	412	=item cf::async { BLOCK }
267		413
268	Currently the same as Coro::async_pool, meaning you cannot use	414	Currently the same as Coro::async_pool, meaning you cannot use
…		…
273		419
274	BEGIN { *async = \&Coro::async_pool }	420	BEGIN { *async = \&Coro::async_pool }
275		421
276	=item cf::sync_job { BLOCK }	422	=item cf::sync_job { BLOCK }
277		423
278	The design of crossfire+ requires that the main coro ($Coro::main) is	424	The design of Deliantra requires that the main coroutine ($Coro::main)
279	always able to handle events or runnable, as crossfire+ is only partly	425	is always able to handle events or runnable, as Deliantra is only
280	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	426	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		427	acceptable.
281		428
282	If it must be done, put the blocking parts into C<sync_job>. This will run	429	If it must be done, put the blocking parts into C<sync_job>. This will run
283	the given BLOCK in another coroutine while waiting for the result. The	430	the given BLOCK in another coroutine while waiting for the result. The
284	server will be frozen during this time, so the block should either finish	431	server will be frozen during this time, so the block should either finish
285	fast or be very important.	432	fast or be very important.
…		…
288		435
289	sub sync_job(&) {	436	sub sync_job(&) {
290	my ($job) = @_;	437	my ($job) = @_;
291		438
292	if ($Coro::current == $Coro::main) {	439	if ($Coro::current == $Coro::main) {
		440	my $time = EV::time;
		441
293	# this is the main coro, too bad, we have to block	442	# this is the main coro, too bad, we have to block
294	# till the operation succeeds, freezing the server :/	443	# till the operation succeeds, freezing the server :/
295		444
		445	LOG llevError, Carp::longmess "sync job";#d#
		446
296	# TODO: use suspend/resume instead	447	# TODO: use suspend/resume instead
297	# (but this is cancel-safe)	448	# (but this is cancel-safe)
298	my $freeze_guard = freeze_mainloop;	449	my $freeze_guard = freeze_mainloop;
299		450
300	my $busy = 1;	451	my $busy = 1;
301	my @res;	452	my @res;
302		453
303	(async {	454	(async {
		455	$Coro::current->desc ("sync job coro");
304	@res = eval { $job->() };	456	@res = eval { $job->() };
305	warn $@ if $@;	457	warn $@ if $@;
306	undef $busy;	458	undef $busy;
307	})->prio (Coro::PRIO_MAX);	459	})->prio (Coro::PRIO_MAX);
308		460
309	while ($busy) {	461	while ($busy) {
310	Coro::cede or Event::one_event;	462	if (Coro::nready) {
		463	Coro::cede_notself;
		464	} else {
		465	EV::loop EV::LOOP_ONESHOT;
311	}	466	}
		467	}
		468
		469	$time = EV::time - $time;
		470
		471	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		472	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		473
		474	$tick_start += $time; # do not account sync jobs to server load
312		475
313	wantarray ? @res : $res[0]	476	wantarray ? @res : $res[0]
314	} else {	477	} else {
315	# we are in another coroutine, how wonderful, everything just works	478	# we are in another coroutine, how wonderful, everything just works
316		479
…		…
336	$EXT_CORO{$coro+0} = $coro;	499	$EXT_CORO{$coro+0} = $coro;
337		500
338	$coro	501	$coro
339	}	502	}
340		503
341	sub write_runtime {	504	=item fork_call { }, $args
342	my $runtime = cf::localdir . "/runtime";
343		505
344	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	506	Executes the given code block with the given arguments in a seperate
345	or return;	507	process, returning the results. Everything must be serialisable with
		508	Coro::Storable. May, of course, block. Note that the executed sub may
		509	never block itself or use any form of event handling.
346		510
347	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	511	=cut
348	(aio_write $fh, 0, (length $value), $value, 0) <= 0
349	and return;
350		512
351	aio_fsync $fh	513	sub fork_call(&@) {
352	and return;	514	my ($cb, @args) = @_;
353		515
354	close $fh	516	# we seemingly have to make a local copy of the whole thing,
355	or return;	517	# otherwise perl prematurely frees the stuff :/
		518	# TODO: investigate and fix (likely this will be rather laborious)
356		519
357	aio_rename "$runtime~", $runtime	520	my @res = Coro::Util::fork_eval {
358	and return;	521	reset_signals;
		522	&$cb
		523	}, @args;
359		524
		525	wantarray ? @res : $res[-1]
		526	}
		527
		528	=item $value = cf::db_get $family => $key
		529
		530	Returns a single value from the environment database.
		531
		532	=item cf::db_put $family => $key => $value
		533
		534	Stores the given C<$value> in the family. It can currently store binary
		535	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		536
		537	=item $db = cf::db_table "name"
		538
		539	Create and/or open a new database table. The string must not be "db" and must be unique
		540	within each server.
		541
		542	=cut
		543
		544	sub db_table($) {
		545	my ($name) = @_;
		546	my $db = BDB::db_create $DB_ENV;
		547
		548	eval {
		549	$db->set_flags (BDB::CHKSUM);
		550
		551	utf8::encode $name;
		552	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		553	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		554	cf::cleanup "db_open(db): $!" if $!;
		555	};
		556	cf::cleanup "db_open(db): $@" if $@;
		557
		558	$db
		559	}
		560
		561	our $DB;
		562
		563	sub db_init {
		564	cf::sync_job {
		565	$DB ||= db_table "db";
		566	};
		567	}
		568
		569	sub db_get($$) {
		570	my $key = "$_[0]/$_[1]";
		571
		572	cf::sync_job {
		573	BDB::db_get $DB, undef, $key, my $data;
		574
		575	$! ? ()
		576	: $data
360	1	577	}
		578	}
		579
		580	sub db_put($$$) {
		581	BDB::dbreq_pri 4;
		582	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		583	}
		584
		585	=item cf::cache $id => [$paths...], $processversion => $process
		586
		587	Generic caching function that returns the value of the resource $id,
		588	caching and regenerating as required.
		589
		590	This function can block.
		591
		592	=cut
		593
		594	sub cache {
		595	my ($id, $src, $processversion, $process) = @_;
		596
		597	my $meta =
		598	join "\x00",
		599	$processversion,
		600	map {
		601	aio_stat $_
		602	and Carp::croak "$_: $!";
		603
		604	($_, (stat _)[7,9])
		605	} @$src;
		606
		607	my $dbmeta = db_get cache => "$id/meta";
		608	if ($dbmeta ne $meta) {
		609	# changed, we may need to process
		610
		611	my @data;
		612	my $md5;
		613
		614	for (0 .. $#$src) {
		615	0 <= aio_load $src->[$_], $data[$_]
		616	or Carp::croak "$src->[$_]: $!";
		617	}
		618
		619	# if processing is expensive, check
		620	# checksum first
		621	if (1) {
		622	$md5 =
		623	join "\x00",
		624	$processversion,
		625	map {
		626	cf::cede_to_tick;
		627	($src->[$_], Digest::MD5::md5_hex $data[$_])
		628	} 0.. $#$src;
		629
		630
		631	my $dbmd5 = db_get cache => "$id/md5";
		632	if ($dbmd5 eq $md5) {
		633	db_put cache => "$id/meta", $meta;
		634
		635	return db_get cache => "$id/data";
		636	}
		637	}
		638
		639	my $t1 = Time::HiRes::time;
		640	my $data = $process->(\@data);
		641	my $t2 = Time::HiRes::time;
		642
		643	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		644
		645	db_put cache => "$id/data", $data;
		646	db_put cache => "$id/md5" , $md5;
		647	db_put cache => "$id/meta", $meta;
		648
		649	return $data;
		650	}
		651
		652	db_get cache => "$id/data"
		653	}
		654
		655	=item cf::datalog type => key => value, ...
		656
		657	Log a datalog packet of the given type with the given key-value pairs.
		658
		659	=cut
		660
		661	sub datalog($@) {
		662	my ($type, %kv) = @_;
		663	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
361	}	664	}
362		665
363	=back	666	=back
364		667
365	=cut	668	=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	$path
478	}
479
480	# the original (read-only) location
481	sub load_path {
482	my ($self) = @_;
483
484	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
485	}
486
487	# the temporary/swap location
488	sub save_path {
489	my ($self) = @_;
490
491	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
492	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
493	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
494	}
495
496	# the unique path, undef == no special unique path
497	sub uniq_path {
498	my ($self) = @_;
499
500	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
501	}
502
503	# this is somewhat ugly, but style maps do need special treatment
504	sub is_style_map {
505	$_[0]{path} =~ m{^/styles/}
506	}
507
508	sub load_orig {
509	my ($self) = @_;
510
511	&cf::map::load_map_header ($self->load_path)
512	}
513
514	sub load_temp {
515	my ($self) = @_;
516
517	&cf::map::load_map_header ($self->save_path)
518	}
519
520	package cf;
521		669
522	#############################################################################	670	#############################################################################
523		671
524	=head2 ATTACHABLE OBJECTS	672	=head2 ATTACHABLE OBJECTS
525		673
…		…
527	attach callbacks/event handlers (a collection of which is called an "attachment")	675	attach callbacks/event handlers (a collection of which is called an "attachment")
528	to it. All such attachable objects support the following methods.	676	to it. All such attachable objects support the following methods.
529		677
530	In the following description, CLASS can be any of C<global>, C<object>	678	In the following description, CLASS can be any of C<global>, C<object>
531	C<player>, C<client> or C<map> (i.e. the attachable objects in	679	C<player>, C<client> or C<map> (i.e. the attachable objects in
532	crossfire+).	680	Deliantra).
533		681
534	=over 4	682	=over 4
535		683
536	=item $attachable->attach ($attachment, key => $value...)	684	=item $attachable->attach ($attachment, key => $value...)
537		685
…		…
651	our @CB_TYPE = (); # registry for type (cf-object class) based events	799	our @CB_TYPE = (); # registry for type (cf-object class) based events
652	our @CB_MAP = ();	800	our @CB_MAP = ();
653		801
654	my %attachment;	802	my %attachment;
655		803
		804	sub cf::attachable::thawer_merge {
		805	# simply override everything except _meta
		806	local $_[0]{_meta};
		807	%{$_[0]} = %{$_[1]};
		808	}
		809
656	sub _attach_cb($$$$) {	810	sub _attach_cb($$$$) {
657	my ($registry, $event, $prio, $cb) = @_;	811	my ($registry, $event, $prio, $cb) = @_;
658		812
659	use sort 'stable';	813	use sort 'stable';
660		814
…		…
694	$registry = $CB_TYPE[$object_type] ||= [];	848	$registry = $CB_TYPE[$object_type] ||= [];
695		849
696	} elsif ($type eq "subtype") {	850	} elsif ($type eq "subtype") {
697	defined $object_type or Carp::croak "subtype specified without type";	851	defined $object_type or Carp::croak "subtype specified without type";
698	my $object_subtype = shift @arg;	852	my $object_subtype = shift @arg;
699	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	853	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
700		854
701	} elsif ($type eq "package") {	855	} elsif ($type eq "package") {
702	my $pkg = shift @arg;	856	my $pkg = shift @arg;
703		857
704	while (my ($name, $id) = each %cb_id) {	858	while (my ($name, $id) = each %cb_id) {
…		…
733	_attach $registry, $klass, @attach;	887	_attach $registry, $klass, @attach;
734	}	888	}
735		889
736	$obj->{$name} = \%arg;	890	$obj->{$name} = \%arg;
737	} else {	891	} else {
738	warn "object uses attachment '$name' that is not available, postponing.\n";	892	warn "object uses attachment '$name' which is not available, postponing.\n";
739	}	893	}
740		894
741	$obj->{_attachment}{$name} = undef;	895	$obj->{_attachment}{$name} = undef;
742	}	896	}
743		897
…		…
745	if (ref $_[0]) {	899	if (ref $_[0]) {
746	_object_attach @_;	900	_object_attach @_;
747	} else {	901	} else {
748	_attach shift->_attach_registry, @_;	902	_attach shift->_attach_registry, @_;
749	}	903	}
		904	_recalc_want;
750	};	905	};
751		906
752	# all those should be optimised	907	# all those should be optimised
753	sub cf::attachable::detach {	908	sub cf::attachable::detach {
754	my ($obj, $name) = @_;	909	my ($obj, $name) = @_;
…		…
757	delete $obj->{_attachment}{$name};	912	delete $obj->{_attachment}{$name};
758	reattach ($obj);	913	reattach ($obj);
759	} else {	914	} else {
760	Carp::croak "cannot, currently, detach class attachments";	915	Carp::croak "cannot, currently, detach class attachments";
761	}	916	}
		917	_recalc_want;
762	};	918	};
763		919
764	sub cf::attachable::attached {	920	sub cf::attachable::attached {
765	my ($obj, $name) = @_;	921	my ($obj, $name) = @_;
766		922
…		…
781	";	937	";
782	die if $@;	938	die if $@;
783	}	939	}
784		940
785	our $override;	941	our $override;
786	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	942	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
787		943
788	sub override {	944	sub override {
789	$override = 1;	945	$override = 1;
790	@invoke_results = ();	946	@INVOKE_RESULTS = (@_);
791	}	947	}
792		948
793	sub do_invoke {	949	sub do_invoke {
794	my $event = shift;	950	my $event = shift;
795	my $callbacks = shift;	951	my $callbacks = shift;
796		952
797	@invoke_results = ();	953	@INVOKE_RESULTS = ();
798		954
799	local $override;	955	local $override;
800		956
801	for (@$callbacks) {	957	for (@$callbacks) {
802	eval { &{$_->[1]} };	958	eval { &{$_->[1]} };
…		…
819		975
820	Generate an object-specific event with the given arguments.	976	Generate an object-specific event with the given arguments.
821		977
822	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	978	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
823	removed in future versions), and there is no public API to access override	979	removed in future versions), and there is no public API to access override
824	results (if you must, access C<@cf::invoke_results> directly).	980	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
825		981
826	=back	982	=back
827		983
828	=cut	984	=cut
829		985
830	#############################################################################	986	#############################################################################
831	# object support	987	# object support
		988
		989	sub _object_equal($$);
		990	sub _object_equal($$) {
		991	my ($a, $b) = @_;
		992
		993	return 0 unless (ref $a) eq (ref $b);
		994
		995	if ("HASH" eq ref $a) {
		996	my @ka = keys %$a;
		997	my @kb = keys %$b;
		998
		999	return 0 if @ka != @kb;
		1000
		1001	for (0 .. $#ka) {
		1002	return 0 unless $ka[$_] eq $kb[$_];
		1003	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1004	}
		1005
		1006	} elsif ("ARRAY" eq ref $a) {
		1007
		1008	return 0 if @$a != @$b;
		1009
		1010	for (0 .. $#$a) {
		1011	return 0 unless _object_equal $a->[$_], $b->[$_];
		1012	}
		1013
		1014	} elsif ($a ne $b) {
		1015	return 0;
		1016	}
		1017
		1018	1
		1019	}
		1020
		1021	our $SLOW_MERGES;#d#
		1022	sub _can_merge {
		1023	my ($ob1, $ob2) = @_;
		1024
		1025	++$SLOW_MERGES;#d#
		1026
		1027	# we do the slow way here
		1028	return _object_equal $ob1, $ob2
		1029	}
832		1030
833	sub reattach {	1031	sub reattach {
834	# basically do the same as instantiate, without calling instantiate	1032	# basically do the same as instantiate, without calling instantiate
835	my ($obj) = @_;	1033	my ($obj) = @_;
		1034
		1035	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
836		1036
837	my $registry = $obj->registry;	1037	my $registry = $obj->registry;
838		1038
839	@$registry = ();	1039	@$registry = ();
840		1040
…		…
881	sub object_freezer_save {	1081	sub object_freezer_save {
882	my ($filename, $rdata, $objs) = @_;	1082	my ($filename, $rdata, $objs) = @_;
883		1083
884	sync_job {	1084	sync_job {
885	if (length $$rdata) {	1085	if (length $$rdata) {
		1086	utf8::decode (my $decname = $filename);
886	warn sprintf "saving %s (%d,%d)\n",	1087	warn sprintf "saving %s (%d,%d)\n",
887	$filename, length $$rdata, scalar @$objs;	1088	$decname, length $$rdata, scalar @$objs;
888		1089
889	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1090	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
890	chmod SAVE_MODE, $fh;	1091	chmod SAVE_MODE, $fh;
891	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1092	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
892	aio_fsync $fh;	1093	aio_fsync $fh if $cf::USE_FSYNC;
893	close $fh;	1094	close $fh;
894		1095
895	if (@$objs) {	1096	if (@$objs) {
896	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1097	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
897	chmod SAVE_MODE, $fh;	1098	chmod SAVE_MODE, $fh;
898	my $data = Storable::nfreeze { version => 1, objs => $objs };	1099	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
899	aio_write $fh, 0, (length $data), $data, 0;	1100	aio_write $fh, 0, (length $data), $data, 0;
900	aio_fsync $fh;	1101	aio_fsync $fh if $cf::USE_FSYNC;
901	close $fh;	1102	close $fh;
902	aio_rename "$filename.pst~", "$filename.pst";	1103	aio_rename "$filename.pst~", "$filename.pst";
903	}	1104	}
904	} else {	1105	} else {
905	aio_unlink "$filename.pst";	1106	aio_unlink "$filename.pst";
…		…
911	}	1112	}
912	} else {	1113	} else {
913	aio_unlink $filename;	1114	aio_unlink $filename;
914	aio_unlink "$filename.pst";	1115	aio_unlink "$filename.pst";
915	}	1116	}
916	}	1117	};
917	}	1118	}
918		1119
919	sub object_freezer_as_string {	1120	sub object_freezer_as_string {
920	my ($rdata, $objs) = @_;	1121	my ($rdata, $objs) = @_;
921		1122
…		…
933	or return;	1134	or return;
934		1135
935	unless (aio_stat "$filename.pst") {	1136	unless (aio_stat "$filename.pst") {
936	(aio_load "$filename.pst", $av) >= 0	1137	(aio_load "$filename.pst", $av) >= 0
937	or return;	1138	or return;
		1139
938	$av = eval { (Storable::thaw $av)->{objs} };	1140	my $st = eval { Coro::Storable::thaw $av };
		1141	$av = $st->{objs};
939	}	1142	}
940		1143
		1144	utf8::decode (my $decname = $filename);
941	warn sprintf "loading %s (%d)\n",	1145	warn sprintf "loading %s (%d,%d)\n",
942	$filename, length $data, scalar @{$av || []};#d#	1146	$decname, length $data, scalar @{$av || []};
		1147
943	return ($data, $av);	1148	($data, $av)
944	}	1149	}
		1150
		1151	=head2 COMMAND CALLBACKS
		1152
		1153	=over 4
		1154
		1155	=cut
945		1156
946	#############################################################################	1157	#############################################################################
947	# command handling &c	1158	# command handling &c
948		1159
949	=item cf::register_command $name => \&callback($ob,$args);	1160	=item cf::register_command $name => \&callback($ob,$args);
…		…
962	push @{ $COMMAND{$name} }, [$caller, $cb];	1173	push @{ $COMMAND{$name} }, [$caller, $cb];
963	}	1174	}
964		1175
965	=item cf::register_extcmd $name => \&callback($pl,$packet);	1176	=item cf::register_extcmd $name => \&callback($pl,$packet);
966		1177
967	Register a callbackf ro execution when the client sends an extcmd packet.	1178	Register a callback for execution when the client sends an (synchronous)
		1179	extcmd packet. Ext commands will be processed in the order they are
		1180	received by the server, like other user commands. The first argument is
		1181	the logged-in player. Ext commands can only be processed after a player
		1182	has logged in successfully.
968		1183
969	If the callback returns something, it is sent back as if reply was being	1184	If the callback returns something, it is sent back as if reply was being
970	called.	1185	called.
971		1186
		1187	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1188
		1189	Register a callback for execution when the client sends an (asynchronous)
		1190	exticmd packet. Exti commands are processed by the server as soon as they
		1191	are received, i.e. out of order w.r.t. other commands. The first argument
		1192	is a client socket. Exti commands can be received anytime, even before
		1193	log-in.
		1194
		1195	If the callback returns something, it is sent back as if reply was being
		1196	called.
		1197
972	=cut	1198	=cut
973		1199
974	sub register_extcmd {	1200	sub register_extcmd {
975	my ($name, $cb) = @_;	1201	my ($name, $cb) = @_;
976		1202
977	$EXTCMD{$name} = $cb;	1203	$EXTCMD{$name} = $cb;
		1204	}
		1205
		1206	sub register_exticmd {
		1207	my ($name, $cb) = @_;
		1208
		1209	$EXTICMD{$name} = $cb;
978	}	1210	}
979		1211
980	cf::player->attach (	1212	cf::player->attach (
981	on_command => sub {	1213	on_command => sub {
982	my ($pl, $name, $params) = @_;	1214	my ($pl, $name, $params) = @_;
…		…
991	cf::override;	1223	cf::override;
992	},	1224	},
993	on_extcmd => sub {	1225	on_extcmd => sub {
994	my ($pl, $buf) = @_;	1226	my ($pl, $buf) = @_;
995		1227
996	my $msg = eval { from_json $buf };	1228	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
997		1229
998	if (ref $msg) {	1230	if (ref $msg) {
		1231	my ($type, $reply, @payload) =
		1232	"ARRAY" eq ref $msg
		1233	? @$msg
		1234	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1235
		1236	my @reply;
		1237
999	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1238	if (my $cb = $EXTCMD{$type}) {
1000	if (my %reply = $cb->($pl, $msg)) {	1239	@reply = $cb->($pl, @payload);
1001	$pl->ext_reply ($msg->{msgid}, %reply);
1002	}
1003	}	1240	}
		1241
		1242	$pl->ext_reply ($reply, @reply)
		1243	if $reply;
		1244
1004	} else {	1245	} else {
1005	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1246	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
1006	}	1247	}
1007		1248
1008	cf::override;	1249	cf::override;
1009	},	1250	},
1010	);	1251	);
1011		1252
1012	sub load_extension {
1013	my ($path) = @_;
1014
1015	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
1016	my $base = $1;
1017	my $pkg = $1;
1018	$pkg =~ s/[^[:word:]]/_/g;
1019	$pkg = "ext::$pkg";
1020
1021	warn "... loading '$path' into '$pkg'\n";
1022
1023	open my $fh, "<:utf8", $path
1024	or die "$path: $!";
1025
1026	my $source =
1027	"package $pkg; use strict; use utf8;\n"
1028	. "#line 1 \"$path\"\n{\n"
1029	. (do { local $/; <$fh> })
1030	. "\n};\n1";
1031
1032	eval $source
1033	or die $@ ? "$path: $@\n"
1034	: "extension disabled.\n";
1035
1036	push @EXTS, $pkg;
1037	}
1038
1039	sub load_extensions {	1253	sub load_extensions {
		1254	cf::sync_job {
		1255	my %todo;
		1256
1040	for my $ext (<$LIBDIR/*.ext>) {	1257	for my $path (<$LIBDIR/*.ext>) {
1041	next unless -r $ext;	1258	next unless -r $path;
1042	eval {	1259
1043	load_extension $ext;	1260	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1261	my $base = $1;
		1262	my $pkg = $1;
		1263	$pkg =~ s/[^[:word:]]/_/g;
		1264	$pkg = "ext::$pkg";
		1265
		1266	open my $fh, "<:utf8", $path
		1267	or die "$path: $!";
		1268
		1269	my $source = do { local $/; <$fh> };
		1270
		1271	my %ext = (
		1272	path => $path,
		1273	base => $base,
		1274	pkg => $pkg,
		1275	);
		1276
		1277	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1278	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1279
		1280	$ext{source} =
		1281	"package $pkg; use strict; use utf8;\n"
		1282	. "#line 1 \"$path\"\n{\n"
		1283	. $source
		1284	. "\n};\n1";
		1285
		1286	$todo{$base} = \%ext;
		1287	}
		1288
		1289	my %done;
		1290	while (%todo) {
		1291	my $progress;
		1292
		1293	while (my ($k, $v) = each %todo) {
		1294	for (split /,\s*/, $v->{meta}{depends}) {
		1295	goto skip
		1296	unless exists $done{$_};
		1297	}
		1298
		1299	warn "... loading '$k' into '$v->{pkg}'\n";
		1300
		1301	unless (eval $v->{source}) {
		1302	my $msg = $@ ? "$v->{path}: $@\n"
		1303	: "$v->{base}: extension inactive.\n";
		1304
		1305	if (exists $v->{meta}{mandatory}) {
		1306	warn $msg;
		1307	warn "mandatory extension failed to load, exiting.\n";
		1308	exit 1;
		1309	}
		1310
		1311	warn $msg;
		1312	}
		1313
		1314	$done{$k} = delete $todo{$k};
		1315	push @EXTS, $v->{pkg};
		1316	$progress = 1;
1044	1	1317	}
1045	} or warn "$ext not loaded: $@";	1318
		1319	skip:
		1320	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1321	unless $progress;
		1322	}
1046	}	1323	};
1047	}	1324	}
1048		1325
1049	#############################################################################	1326	#############################################################################
1050	# load/save/clean perl data associated with a map
1051		1327
1052	*cf::mapsupport::on_clean = sub {	1328	=back
1053	my ($map) = @_;
1054
1055	my $path = $map->tmpname;
1056	defined $path or return;
1057
1058	unlink "$path.pst";
1059	};
1060
1061	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1062
1063	#############################################################################
1064		1329
1065	=head2 CORE EXTENSIONS	1330	=head2 CORE EXTENSIONS
1066		1331
1067	Functions and methods that extend core crossfire objects.	1332	Functions and methods that extend core crossfire objects.
1068		1333
…		…
1074		1339
1075	=head3 cf::player	1340	=head3 cf::player
1076		1341
1077	=over 4	1342	=over 4
1078		1343
		1344	=item cf::player::num_playing
		1345
		1346	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1347
		1348	=cut
		1349
		1350	sub num_playing {
		1351	scalar grep
		1352	$_->ob->map
		1353	&& !$_->hidden
		1354	&& !$_->ob->flag (cf::FLAG_WIZ),
		1355	cf::player::list
		1356	}
		1357
1079	=item cf::player::find $login	1358	=item cf::player::find $login
1080		1359
1081	Returns the given player object, loading it if necessary (might block).	1360	Returns the given player object, loading it if necessary (might block).
1082		1361
1083	=cut	1362	=cut
1084		1363
1085	sub playerdir($) {	1364	sub playerdir($) {
1086	cf::localdir	1365	"$PLAYERDIR/"
1087	. "/"
1088	. cf::playerdir
1089	. "/"
1090	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1366	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1091	}	1367	}
1092		1368
1093	sub path($) {	1369	sub path($) {
1094	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1370	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1095		1371
1096	(playerdir $login) . "/$login.pl"	1372	(playerdir $login) . "/playerdata"
1097	}	1373	}
1098		1374
1099	sub find_active($) {	1375	sub find_active($) {
1100	$cf::PLAYER{$_[0]}	1376	$cf::PLAYER{$_[0]}
1101	and $cf::PLAYER{$_[0]}->active	1377	and $cf::PLAYER{$_[0]}->active
…		…
1104		1380
1105	sub exists($) {	1381	sub exists($) {
1106	my ($login) = @_;	1382	my ($login) = @_;
1107		1383
1108	$cf::PLAYER{$login}	1384	$cf::PLAYER{$login}
1109	or cf::sync_job { !aio_stat $login }	1385	or cf::sync_job { !aio_stat path $login }
1110	}	1386	}
1111		1387
1112	sub find($) {	1388	sub find($) {
1113	return $cf::PLAYER{$_[0]} || do {	1389	return $cf::PLAYER{$_[0]} || do {
1114	my $login = $_[0];	1390	my $login = $_[0];
1115		1391
1116	my $guard = cf::lock_acquire "user_find:$login";	1392	my $guard = cf::lock_acquire "user_find:$login";
1117		1393
1118	$cf::PLAYER{$_[0]} || do {	1394	$cf::PLAYER{$_[0]} || do {
1119	my $pl = load_pl path $login	1395	# rename old playerfiles to new ones
		1396	#TODO: remove when no longer required
		1397	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1398	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1399	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1400	aio_unlink +(playerdir $login) . "/$login.pl";
		1401
		1402	my $f = new_from_file cf::object::thawer path $login
1120	or return;	1403	or return;
		1404
		1405	my $pl = cf::player::load_pl $f
		1406	or return;
		1407	local $cf::PLAYER_LOADING{$login} = $pl;
		1408	$f->resolve_delayed_derefs;
1121	$cf::PLAYER{$login} = $pl	1409	$cf::PLAYER{$login} = $pl
1122	}	1410	}
1123	}	1411	}
1124	}	1412	}
1125		1413
…		…
1135		1423
1136	aio_mkdir playerdir $pl, 0770;	1424	aio_mkdir playerdir $pl, 0770;
1137	$pl->{last_save} = $cf::RUNTIME;	1425	$pl->{last_save} = $cf::RUNTIME;
1138		1426
1139	$pl->save_pl ($path);	1427	$pl->save_pl ($path);
1140	Coro::cede;	1428	cf::cede_to_tick;
1141	}	1429	}
1142		1430
1143	sub new($) {	1431	sub new($) {
1144	my ($login) = @_;	1432	my ($login) = @_;
1145		1433
…		…
1151	$cf::PLAYER{$login} = $self;	1439	$cf::PLAYER{$login} = $self;
1152		1440
1153	$self	1441	$self
1154	}	1442	}
1155		1443
		1444	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1445
		1446	=cut
		1447
		1448	sub send_msg {
		1449	my $ns = shift->ns
		1450	or return;
		1451	$ns->send_msg (@_);
		1452	}
		1453
1156	=item $pl->quit_character	1454	=item $pl->quit_character
1157		1455
1158	Nukes the player without looking back. If logged in, the connection will	1456	Nukes the player without looking back. If logged in, the connection will
1159	be destroyed. May block for a long time.	1457	be destroyed. May block for a long time.
1160		1458
1161	=cut	1459	=cut
1162		1460
1163	sub quit_character {	1461	sub quit_character {
1164	my ($pl) = @_;	1462	my ($pl) = @_;
		1463
		1464	my $name = $pl->ob->name;
1165		1465
1166	$pl->{deny_save} = 1;	1466	$pl->{deny_save} = 1;
1167	$pl->password ("*"); # this should lock out the player until we nuked the dir	1467	$pl->password ("*"); # this should lock out the player until we nuked the dir
1168		1468
1169	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1469	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1174	my $path = playerdir $pl;	1474	my $path = playerdir $pl;
1175	my $temp = "$path~$cf::RUNTIME~deleting~";	1475	my $temp = "$path~$cf::RUNTIME~deleting~";
1176	aio_rename $path, $temp;	1476	aio_rename $path, $temp;
1177	delete $cf::PLAYER{$pl->ob->name};	1477	delete $cf::PLAYER{$pl->ob->name};
1178	$pl->destroy;	1478	$pl->destroy;
		1479
		1480	my $prefix = qr<^~\Q$name\E/>;
		1481
		1482	# nuke player maps
		1483	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1484
1179	IO::AIO::aio_rmtree $temp;	1485	IO::AIO::aio_rmtree $temp;
		1486	}
		1487
		1488	=item $pl->kick
		1489
		1490	Kicks a player out of the game. This destroys the connection.
		1491
		1492	=cut
		1493
		1494	sub kick {
		1495	my ($pl, $kicker) = @_;
		1496
		1497	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1498	$pl->killer ("kicked");
		1499	$pl->ns->destroy;
1180	}	1500	}
1181		1501
1182	=item cf::player::list_logins	1502	=item cf::player::list_logins
1183		1503
1184	Returns am arrayref of all valid playernames in the system, can take a	1504	Returns am arrayref of all valid playernames in the system, can take a
1185	while and may block, so not sync_job-capable, ever.	1505	while and may block, so not sync_job-capable, ever.
1186		1506
1187	=cut	1507	=cut
1188		1508
1189	sub list_logins {	1509	sub list_logins {
1190	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1510	my $dirs = aio_readdir $PLAYERDIR
1191	or return [];	1511	or return [];
1192		1512
1193	my @logins;	1513	my @logins;
1194		1514
1195	for my $login (@$dirs) {	1515	for my $login (@$dirs) {
		1516	my $path = path $login;
		1517
		1518	# a .pst is a dead give-away for a valid player
		1519	unless (-e "$path.pst") {
1196	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1520	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1197	aio_read $fh, 0, 512, my $buf, 0 or next;	1521	aio_read $fh, 0, 512, my $buf, 0 or next;
1198	$buf !~ /^password -------------$/m or next; # official not-valid tag	1522	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1523	}
1199		1524
1200	utf8::decode $login;	1525	utf8::decode $login;
1201	push @logins, $login;	1526	push @logins, $login;
1202	}	1527	}
1203		1528
1204	\@logins	1529	\@logins
1205	}	1530	}
1206		1531
1207	=item $player->maps	1532	=item $player->maps
1208		1533
1209	Returns an arrayref of cf::path's of all maps that are private for this	1534	Returns an arrayref of map paths that are private for this
1210	player. May block.	1535	player. May block.
1211		1536
1212	=cut	1537	=cut
1213		1538
1214	sub maps($) {	1539	sub maps($) {
1215	my ($pl) = @_;	1540	my ($pl) = @_;
		1541
		1542	$pl = ref $pl ? $pl->ob->name : $pl;
1216		1543
1217	my $files = aio_readdir playerdir $pl	1544	my $files = aio_readdir playerdir $pl
1218	or return;	1545	or return;
1219		1546
1220	my @paths;	1547	my @paths;
…		…
1222	for (@$files) {	1549	for (@$files) {
1223	utf8::decode $_;	1550	utf8::decode $_;
1224	next if /\.(?:pl|pst)$/;	1551	next if /\.(?:pl|pst)$/;
1225	next unless /^$PATH_SEP/o;	1552	next unless /^$PATH_SEP/o;
1226		1553
1227	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1554	push @paths, cf::map::normalise "~$pl/$_";
1228	}	1555	}
1229		1556
1230	\@paths	1557	\@paths
1231	}	1558	}
1232		1559
		1560	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1561
		1562	Expand crossfire pod fragments into protocol xml.
		1563
		1564	=cut
		1565
		1566	use re 'eval';
		1567
		1568	my $group;
		1569	my $interior; $interior = qr{
		1570	# match a pod interior sequence sans C<< >>
		1571	(?:
		1572	\ (.*?)\ (?{ $group = $^N })
		1573	| < (??{$interior}) >
		1574	)
		1575	}x;
		1576
		1577	sub expand_cfpod {
		1578	my ($self, $pod) = @_;
		1579
		1580	my $xml;
		1581
		1582	while () {
		1583	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1584	$group = $1;
		1585
		1586	$group =~ s/&/&amp;/g;
		1587	$group =~ s/</&lt;/g;
		1588
		1589	$xml .= $group;
		1590	} elsif ($pod =~ m%\G
		1591	([BCGHITU])
		1592	<
		1593	(?:
		1594	([^<>]*) (?{ $group = $^N })
		1595	| < $interior >
		1596	)
		1597	>
		1598	%gcsx
		1599	) {
		1600	my ($code, $data) = ($1, $group);
		1601
		1602	if ($code eq "B") {
		1603	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1604	} elsif ($code eq "I") {
		1605	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1606	} elsif ($code eq "U") {
		1607	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1608	} elsif ($code eq "C") {
		1609	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1610	} elsif ($code eq "T") {
		1611	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1612	} elsif ($code eq "G") {
		1613	my ($male, $female) = split /\|/, $data;
		1614	$data = $self->gender ? $female : $male;
		1615	$xml .= expand_cfpod ($self, $data);
		1616	} elsif ($code eq "H") {
		1617	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1618	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1619	"")
		1620	[$self->{hintmode}];
		1621	} else {
		1622	$xml .= "error processing '$code($data)' directive";
		1623	}
		1624	} else {
		1625	if ($pod =~ /\G(.+)/) {
		1626	warn "parse error while expanding $pod (at $1)";
		1627	}
		1628	last;
		1629	}
		1630	}
		1631
		1632	for ($xml) {
		1633	# create single paragraphs (very hackish)
		1634	s/(?<=\S)\n(?=\w)/ /g;
		1635
		1636	# compress some whitespace
		1637	s/\s+\n/\n/g; # ws line-ends
		1638	s/\n\n+/\n/g; # double lines
		1639	s/^\n+//; # beginning lines
		1640	s/\n+$//; # ending lines
		1641	}
		1642
		1643	$xml
		1644	}
		1645
		1646	no re 'eval';
		1647
		1648	sub hintmode {
		1649	$_[0]{hintmode} = $_[1] if @_ > 1;
		1650	$_[0]{hintmode}
		1651	}
		1652
1233	=item $player->ext_reply ($msgid, $msgtype, %msg)	1653	=item $player->ext_reply ($msgid, @msg)
1234		1654
1235	Sends an ext reply to the player.	1655	Sends an ext reply to the player.
1236		1656
1237	=cut	1657	=cut
1238		1658
1239	sub ext_reply($$$%) {	1659	sub ext_reply($$@) {
1240	my ($self, $id, %msg) = @_;	1660	my ($self, $id, @msg) = @_;
1241		1661
1242	$msg{msgid} = $id;	1662	$self->ns->ext_reply ($id, @msg)
1243
1244	$self->send ("ext " . cf::to_json \%msg);
1245	}	1663	}
1246		1664
1247	package cf;	1665	=item $player->ext_msg ($type, @msg)
		1666
		1667	Sends an ext event to the client.
		1668
		1669	=cut
		1670
		1671	sub ext_msg($$@) {
		1672	my ($self, $type, @msg) = @_;
		1673
		1674	$self->ns->ext_msg ($type, @msg);
		1675	}
		1676
		1677	=head3 cf::region
		1678
		1679	=over 4
		1680
		1681	=cut
		1682
		1683	package cf::region;
		1684
		1685	=item cf::region::find_by_path $path
		1686
		1687	Tries to decuce the likely region for a map knowing only its path.
		1688
		1689	=cut
		1690
		1691	sub find_by_path($) {
		1692	my ($path) = @_;
		1693
		1694	my ($match, $specificity);
		1695
		1696	for my $region (list) {
		1697	if ($region->{match} && $path =~ $region->{match}) {
		1698	($match, $specificity) = ($region, $region->specificity)
		1699	if $region->specificity > $specificity;
		1700	}
		1701	}
		1702
		1703	$match
		1704	}
1248		1705
1249	=back	1706	=back
1250
1251		1707
1252	=head3 cf::map	1708	=head3 cf::map
1253		1709
1254	=over 4	1710	=over 4
1255		1711
…		…
1258	package cf::map;	1714	package cf::map;
1259		1715
1260	use Fcntl;	1716	use Fcntl;
1261	use Coro::AIO;	1717	use Coro::AIO;
1262		1718
		1719	use overload
		1720	'""' => \&as_string,
		1721	fallback => 1;
		1722
1263	our $MAX_RESET = 3600;	1723	our $MAX_RESET = 3600;
1264	our $DEFAULT_RESET = 3000;	1724	our $DEFAULT_RESET = 3000;
1265		1725
1266	sub generate_random_map {	1726	sub generate_random_map {
1267	my ($path, $rmp) = @_;	1727	my ($self, $rmp) = @_;
1268
1269	# mit "rum" bekleckern, nicht	1728	# mit "rum" bekleckern, nicht
1270	cf::map::_create_random_map	1729	$self->_create_random_map (
1271	$path,
1272	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1730	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1273	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1731	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1274	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1732	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1275	$rmp->{exit_on_final_map},	1733	$rmp->{exit_on_final_map},
1276	$rmp->{xsize}, $rmp->{ysize},	1734	$rmp->{xsize}, $rmp->{ysize},
1277	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1735	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1278	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1736	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1279	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1737	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1280	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1738	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1281	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1739	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1282	(cf::region::find $rmp->{region})	1740	(cf::region::find $rmp->{region}), $rmp->{custom}
		1741	)
		1742	}
		1743
		1744	=item cf::map->register ($regex, $prio)
		1745
		1746	Register a handler for the map path matching the given regex at the
		1747	givne priority (higher is better, built-in handlers have priority 0, the
		1748	default).
		1749
		1750	=cut
		1751
		1752	sub register {
		1753	my (undef, $regex, $prio) = @_;
		1754	my $pkg = caller;
		1755
		1756	no strict;
		1757	push @{"$pkg\::ISA"}, __PACKAGE__;
		1758
		1759	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1760	}
		1761
		1762	# also paths starting with '/'
		1763	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1764
		1765	sub thawer_merge {
		1766	my ($self, $merge) = @_;
		1767
		1768	# we have to keep some variables in memory intact
		1769	local $self->{path};
		1770	local $self->{load_path};
		1771
		1772	$self->SUPER::thawer_merge ($merge);
		1773	}
		1774
		1775	sub normalise {
		1776	my ($path, $base) = @_;
		1777
		1778	$path = "$path"; # make sure its a string
		1779
		1780	$path =~ s/\.map$//;
		1781
		1782	# map plan:
		1783	#
		1784	# /! non-realised random map exit (special hack!)
		1785	# {... are special paths that are not being touched
		1786	# ?xxx/... are special absolute paths
		1787	# ?random/... random maps
		1788	# /... normal maps
		1789	# ~user/... per-player map of a specific user
		1790
		1791	$path =~ s/$PATH_SEP/\//go;
		1792
		1793	# treat it as relative path if it starts with
		1794	# something that looks reasonable
		1795	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1796	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1797
		1798	$base =~ s{[^/]+/?$}{};
		1799	$path = "$base/$path";
		1800	}
		1801
		1802	for ($path) {
		1803	redo if s{//}{/};
		1804	redo if s{/\.?/}{/};
		1805	redo if s{/[^/]+/\.\./}{/};
		1806	}
		1807
		1808	$path
		1809	}
		1810
		1811	sub new_from_path {
		1812	my (undef, $path, $base) = @_;
		1813
		1814	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1815
		1816	$path = normalise $path, $base;
		1817
		1818	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1819	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1820	my $self = bless cf::map::new, $pkg;
		1821	$self->{path} = $path; $self->path ($path);
		1822	$self->init; # pass $1 etc.
		1823	return $self;
		1824	}
		1825	}
		1826
		1827	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1828	()
		1829	}
		1830
		1831	sub init {
		1832	my ($self) = @_;
		1833
		1834	$self
		1835	}
		1836
		1837	sub as_string {
		1838	my ($self) = @_;
		1839
		1840	"$self->{path}"
		1841	}
		1842
		1843	# the displayed name, this is a one way mapping
		1844	sub visible_name {
		1845	&as_string
		1846	}
		1847
		1848	# the original (read-only) location
		1849	sub load_path {
		1850	my ($self) = @_;
		1851
		1852	"$MAPDIR/$self->{path}.map"
		1853	}
		1854
		1855	# the temporary/swap location
		1856	sub save_path {
		1857	my ($self) = @_;
		1858
		1859	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1860	"$TMPDIR/$path.map"
		1861	}
		1862
		1863	# the unique path, undef == no special unique path
		1864	sub uniq_path {
		1865	my ($self) = @_;
		1866
		1867	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1868	"$UNIQUEDIR/$path"
1283	}	1869	}
1284		1870
1285	# and all this just because we cannot iterate over	1871	# and all this just because we cannot iterate over
1286	# all maps in C++...	1872	# all maps in C++...
1287	sub change_all_map_light {	1873	sub change_all_map_light {
…		…
1289		1875
1290	$_->change_map_light ($change)	1876	$_->change_map_light ($change)
1291	for grep $_->outdoor, values %cf::MAP;	1877	for grep $_->outdoor, values %cf::MAP;
1292	}	1878	}
1293		1879
		1880	sub decay_objects {
		1881	my ($self) = @_;
		1882
		1883	return if $self->{deny_reset};
		1884
		1885	$self->do_decay_objects;
		1886	}
		1887
		1888	sub unlink_save {
		1889	my ($self) = @_;
		1890
		1891	utf8::encode (my $save = $self->save_path);
		1892	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1893	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1894	}
		1895
1294	sub load_map_header($) {	1896	sub load_header_from($) {
1295	my ($path) = @_;	1897	my ($self, $path) = @_;
1296		1898
1297	utf8::encode $path;	1899	utf8::encode $path;
1298	aio_open $path, O_RDONLY, 0	1900	my $f = new_from_file cf::object::thawer $path
1299	or return;	1901	or return;
1300		1902
1301	my $map = cf::map::new	1903	$self->_load_header ($f)
1302	or return;	1904	or return;
1303		1905
1304	# for better error messages only, will be overwritten later	1906	local $MAP_LOADING{$self->{path}} = $self;
1305	$map->path ($path);	1907	$f->resolve_delayed_derefs;
1306		1908
1307	$map->load_header ($path)	1909	$self->{load_path} = $path;
		1910
		1911	1
		1912	}
		1913
		1914	sub load_header_orig {
		1915	my ($self) = @_;
		1916
		1917	$self->load_header_from ($self->load_path)
		1918	}
		1919
		1920	sub load_header_temp {
		1921	my ($self) = @_;
		1922
		1923	$self->load_header_from ($self->save_path)
		1924	}
		1925
		1926	sub prepare_temp {
		1927	my ($self) = @_;
		1928
		1929	$self->last_access ((delete $self->{last_access})
		1930	|| $cf::RUNTIME); #d#
		1931	# safety
		1932	$self->{instantiate_time} = $cf::RUNTIME
		1933	if $self->{instantiate_time} > $cf::RUNTIME;
		1934	}
		1935
		1936	sub prepare_orig {
		1937	my ($self) = @_;
		1938
		1939	$self->{load_original} = 1;
		1940	$self->{instantiate_time} = $cf::RUNTIME;
		1941	$self->last_access ($cf::RUNTIME);
		1942	$self->instantiate;
		1943	}
		1944
		1945	sub load_header {
		1946	my ($self) = @_;
		1947
		1948	if ($self->load_header_temp) {
		1949	$self->prepare_temp;
		1950	} else {
		1951	$self->load_header_orig
1308	or return;	1952	or return;
		1953	$self->prepare_orig;
		1954	}
1309		1955
1310	$map->{load_path} = $path;	1956	$self->{deny_reset} = 1
		1957	if $self->no_reset;
1311		1958
1312	$map	1959	$self->default_region (cf::region::find_by_path $self->{path})
		1960	unless $self->default_region;
		1961
		1962	1
1313	}	1963	}
1314		1964
1315	sub find;	1965	sub find;
1316	sub find {	1966	sub find {
1317	my ($path, $origin) = @_;	1967	my ($path, $origin) = @_;
1318		1968
1319	#warn "find<$path,$origin>\n";#d#
1320
1321	$path = new cf::path $path, $origin && $origin->path;	1969	$path = normalise $path, $origin && $origin->path;
1322	my $key = $path->as_string;
1323		1970
		1971	cf::lock_wait "map_data:$path";#d#remove
1324	cf::lock_wait "map_find:$key";	1972	cf::lock_wait "map_find:$path";
1325		1973
1326	$cf::MAP{$key} || do {	1974	$cf::MAP{$path} || do {
1327	my $guard = cf::lock_acquire "map_find:$key";	1975	my $guard1 = cf::lock_acquire "map_find:$path";
		1976	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1328		1977
1329	# do it the slow way	1978	my $map = new_from_path cf::map $path
1330	my $map = $path->load_temp;
1331
1332	Coro::cede;
1333
1334	if ($map) {
1335	$map->last_access ((delete $map->{last_access})
1336	|| $cf::RUNTIME); #d#
1337	# safety
1338	$map->{instantiate_time} = $cf::RUNTIME
1339	if $map->{instantiate_time} > $cf::RUNTIME;
1340	} else {
1341	$map = $path->load_orig
1342	or return;	1979	or return;
1343		1980
1344	$map->{load_original} = 1;
1345	$map->{instantiate_time} = $cf::RUNTIME;
1346	$map->last_access ($cf::RUNTIME);
1347	$map->instantiate;
1348
1349	# per-player maps become, after loading, normal maps
1350	$map->per_player (0) if $path->{user_rel};
1351	}
1352
1353	$map->path ($key);
1354	$map->{path} = $path;
1355	$map->{last_save} = $cf::RUNTIME;	1981	$map->{last_save} = $cf::RUNTIME;
1356		1982
1357	Coro::cede;	1983	$map->load_header
		1984	or return;
1358		1985
1359	if ($map->should_reset) {	1986	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1987	# doing this can freeze the server in a sync job, obviously
		1988	#$cf::WAIT_FOR_TICK->wait;
		1989	undef $guard1;
		1990	undef $guard2;
1360	$map->reset;	1991	$map->reset;
1361	undef $guard;
1362	$map = find $path	1992	return find $path;
1363	or return;
1364	}	1993	}
1365		1994
1366	$cf::MAP{$key} = $map	1995	$cf::MAP{$path} = $map
1367	}	1996	}
1368	}	1997	}
		1998
		1999	sub pre_load { }
		2000	sub post_load { }
1369		2001
1370	sub load {	2002	sub load {
1371	my ($self) = @_;	2003	my ($self) = @_;
1372		2004
		2005	local $self->{deny_reset} = 1; # loading can take a long time
		2006
1373	my $path = $self->{path};	2007	my $path = $self->{path};
		2008
		2009	{
1374	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2010	my $guard = cf::lock_acquire "map_data:$path";
1375		2011
		2012	return unless $self->valid;
1376	return if $self->in_memory != cf::MAP_SWAPPED;	2013	return unless $self->in_memory == cf::MAP_SWAPPED;
1377		2014
1378	$self->in_memory (cf::MAP_LOADING);	2015	$self->in_memory (cf::MAP_LOADING);
1379		2016
1380	$self->alloc;	2017	$self->alloc;
1381	$self->load_objects ($self->{load_path}, 1)	2018
		2019	$self->pre_load;
		2020	cf::cede_to_tick;
		2021
		2022	my $f = new_from_file cf::object::thawer $self->{load_path};
		2023	$f->skip_block;
		2024	$self->_load_objects ($f)
1382	or return;	2025	or return;
1383		2026
1384	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2027	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1385	if delete $self->{load_original};	2028	if delete $self->{load_original};
1386		2029
1387	if (my $uniq = $path->uniq_path) {	2030	if (my $uniq = $self->uniq_path) {
1388	utf8::encode $uniq;	2031	utf8::encode $uniq;
1389	if (aio_open $uniq, O_RDONLY, 0) {	2032	unless (aio_stat $uniq) {
		2033	if (my $f = new_from_file cf::object::thawer $uniq) {
1390	$self->clear_unique_items;	2034	$self->clear_unique_items;
1391	$self->load_objects ($uniq, 0);	2035	$self->_load_objects ($f);
		2036	$f->resolve_delayed_derefs;
		2037	}
1392	}	2038	}
1393	}	2039	}
1394		2040
1395	Coro::cede;	2041	$f->resolve_delayed_derefs;
1396		2042
		2043	cf::cede_to_tick;
1397	# now do the right thing for maps	2044	# now do the right thing for maps
1398	$self->link_multipart_objects;	2045	$self->link_multipart_objects;
1399
1400	if ($self->{path}->is_style_map) {
1401	$self->{deny_save} = 1;
1402	$self->{deny_reset} = 1;
1403	} else {
1404	$self->fix_auto_apply;
1405	$self->decay_objects;
1406	$self->update_buttons;
1407	$self->set_darkness_map;
1408	$self->difficulty ($self->estimate_difficulty)	2046	$self->difficulty ($self->estimate_difficulty)
1409	unless $self->difficulty;	2047	unless $self->difficulty;
		2048	cf::cede_to_tick;
		2049
		2050	unless ($self->{deny_activate}) {
		2051	$self->decay_objects;
		2052	$self->fix_auto_apply;
		2053	$self->update_buttons;
		2054	cf::cede_to_tick;
		2055	$self->set_darkness_map;
		2056	cf::cede_to_tick;
1410	$self->activate;	2057	$self->activate;
1411	}	2058	}
1412		2059
1413	Coro::cede;	2060	$self->{last_save} = $cf::RUNTIME;
		2061	$self->last_access ($cf::RUNTIME);
1414		2062
1415	$self->in_memory (cf::MAP_IN_MEMORY);	2063	$self->in_memory (cf::MAP_IN_MEMORY);
		2064	}
		2065
		2066	$self->post_load;
		2067	}
		2068
		2069	sub customise_for {
		2070	my ($self, $ob) = @_;
		2071
		2072	return find "~" . $ob->name . "/" . $self->{path}
		2073	if $self->per_player;
		2074
		2075	# return find "?party/" . $ob->name . "/" . $self->{path}
		2076	# if $self->per_party;
		2077
		2078	$self
1416	}	2079	}
1417		2080
1418	# find and load all maps in the 3x3 area around a map	2081	# find and load all maps in the 3x3 area around a map
1419	sub load_diag {	2082	sub load_neighbours {
1420	my ($map) = @_;	2083	my ($map) = @_;
1421		2084
1422	my @diag; # diagonal neighbours	2085	my @neigh; # diagonal neighbours
1423		2086
1424	for (0 .. 3) {	2087	for (0 .. 3) {
1425	my $neigh = $map->tile_path ($_)	2088	my $neigh = $map->tile_path ($_)
1426	or next;	2089	or next;
1427	$neigh = find $neigh, $map	2090	$neigh = find $neigh, $map
1428	or next;	2091	or next;
1429	$neigh->load;	2092	$neigh->load;
1430		2093
		2094	push @neigh,
1431	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2095	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1432	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2096	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1433	}	2097	}
1434		2098
1435	for (@diag) {	2099	for (grep defined $_->[0], @neigh) {
		2100	my ($path, $origin) = @$_;
1436	my $neigh = find @$_	2101	my $neigh = find $path, $origin
1437	or next;	2102	or next;
1438	$neigh->load;	2103	$neigh->load;
1439	}	2104	}
1440	}	2105	}
1441		2106
…		…
1446	}	2111	}
1447		2112
1448	sub do_load_sync {	2113	sub do_load_sync {
1449	my ($map) = @_;	2114	my ($map) = @_;
1450		2115
		2116	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2117	if $Coro::current == $Coro::main;
		2118
1451	cf::sync_job { $map->load };	2119	cf::sync_job { $map->load };
1452	}	2120	}
1453		2121
1454	our %MAP_PREFETCH;	2122	our %MAP_PREFETCH;
		2123	our $MAP_PREFETCHER = undef;
		2124
		2125	sub find_async {
		2126	my ($path, $origin, $load) = @_;
		2127
		2128	$path = normalise $path, $origin && $origin->{path};
		2129
		2130	if (my $map = $cf::MAP{$path}) {
		2131	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2132	}
		2133
		2134	$MAP_PREFETCH{$path} |= $load;
		2135
1455	our $MAP_PREFETCHER = Coro::async {	2136	$MAP_PREFETCHER ||= cf::async {
1456	while () {	2137	$Coro::current->{desc} = "map prefetcher";
		2138
1457	while (%MAP_PREFETCH) {	2139	while (%MAP_PREFETCH) {
1458	my $key = each %MAP_PREFETCH	2140	while (my ($k, $v) = each %MAP_PREFETCH) {
1459	or next;	2141	if (my $map = find $k) {
		2142	$map->load if $v;
		2143	}
		2144
1460	my $path = delete $MAP_PREFETCH{$key};	2145	delete $MAP_PREFETCH{$k};
1461
1462	my $map = find $path
1463	or next;
1464	$map->load;
1465	}	2146	}
1466	Coro::schedule;	2147	}
		2148	undef $MAP_PREFETCHER;
1467	}	2149	};
1468	};
1469
1470	sub find_async {
1471	my ($path, $origin) = @_;
1472
1473	$path = new cf::path $path, $origin && $origin->path;
1474	my $key = $path->as_string;
1475
1476	if (my $map = $cf::MAP{$key}) {
1477	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1478	}
1479
1480	$MAP_PREFETCH{$key} = $path;
1481	$MAP_PREFETCHER->ready;	2150	$MAP_PREFETCHER->prio (6);
1482		2151
1483	()	2152	()
1484	}	2153	}
1485		2154
1486	sub save {	2155	sub save {
1487	my ($self) = @_;	2156	my ($self) = @_;
1488		2157
1489	my $lock = cf::lock_acquire "map_data:" . $self->path;	2158	my $lock = cf::lock_acquire "map_data:$self->{path}";
1490		2159
1491	$self->{last_save} = $cf::RUNTIME;	2160	$self->{last_save} = $cf::RUNTIME;
1492		2161
1493	return unless $self->dirty;	2162	return unless $self->dirty;
1494		2163
1495	my $save = $self->{path}->save_path; utf8::encode $save;	2164	my $save = $self->save_path; utf8::encode $save;
1496	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2165	my $uniq = $self->uniq_path; utf8::encode $uniq;
1497		2166
1498	$self->{load_path} = $save;	2167	$self->{load_path} = $save;
1499		2168
1500	return if $self->{deny_save};	2169	return if $self->{deny_save};
1501		2170
1502	local $self->{last_access} = $self->last_access;#d#	2171	local $self->{last_access} = $self->last_access;#d#
1503		2172
1504	cf::async {	2173	cf::async {
		2174	$Coro::current->{desc} = "map player save";
1505	$_->contr->save for $self->players;	2175	$_->contr->save for $self->players;
1506	};	2176	};
1507		2177
1508	if ($uniq) {	2178	if ($uniq) {
1509	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2179	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1510	$self->save_objects ($uniq, cf::IO_UNIQUES);	2180	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1511	} else {	2181	} else {
1512	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2182	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1513	}	2183	}
1514	}	2184	}
1515		2185
1516	sub swap_out {	2186	sub swap_out {
1517	my ($self) = @_;	2187	my ($self) = @_;
1518		2188
1519	# save first because save cedes	2189	# save first because save cedes
1520	$self->save;	2190	$self->save;
1521		2191
1522	my $lock = cf::lock_acquire "map_data:" . $self->path;	2192	my $lock = cf::lock_acquire "map_data:$self->{path}";
1523		2193
1524	return if $self->players;	2194	return if $self->players;
1525	return if $self->in_memory != cf::MAP_IN_MEMORY;	2195	return if $self->in_memory != cf::MAP_IN_MEMORY;
1526	return if $self->{deny_save};	2196	return if $self->{deny_save};
1527		2197
		2198	$self->in_memory (cf::MAP_SWAPPED);
		2199
		2200	$self->deactivate;
		2201	$_->clear_links_to ($self) for values %cf::MAP;
1528	$self->clear;	2202	$self->clear;
1529	$self->in_memory (cf::MAP_SWAPPED);
1530	}	2203	}
1531		2204
1532	sub reset_at {	2205	sub reset_at {
1533	my ($self) = @_;	2206	my ($self) = @_;
1534		2207
1535	# TODO: safety, remove and allow resettable per-player maps	2208	# TODO: safety, remove and allow resettable per-player maps
1536	return 1e99 if $self->{path}{user_rel};
1537	return 1e99 if $self->{deny_reset};	2209	return 1e99 if $self->{deny_reset};
1538		2210
1539	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2211	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1540	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2212	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1541		2213
…		…
1546	my ($self) = @_;	2218	my ($self) = @_;
1547		2219
1548	$self->reset_at <= $cf::RUNTIME	2220	$self->reset_at <= $cf::RUNTIME
1549	}	2221	}
1550		2222
1551	sub unlink_save {
1552	my ($self) = @_;
1553
1554	utf8::encode (my $save = $self->{path}->save_path);
1555	aioreq_pri 3; IO::AIO::aio_unlink $save;
1556	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1557	}
1558
1559	sub rename {
1560	my ($self, $new_path) = @_;
1561
1562	$self->unlink_save;
1563
1564	delete $cf::MAP{$self->path};
1565	$self->{path} = new cf::path $new_path;
1566	$self->path ($self->{path}->as_string);
1567	$cf::MAP{$self->path} = $self;
1568
1569	$self->save;
1570	}
1571
1572	sub reset {	2223	sub reset {
1573	my ($self) = @_;	2224	my ($self) = @_;
1574		2225
1575	my $lock = cf::lock_acquire "map_data:" . $self->path;	2226	my $lock = cf::lock_acquire "map_data:$self->{path}";
1576		2227
1577	return if $self->players;	2228	return if $self->players;
1578	return if $self->{path}{user_rel};#d#
1579		2229
1580	warn "resetting map ", $self->path;#d#	2230	warn "resetting map ", $self->path;
		2231
		2232	$self->in_memory (cf::MAP_SWAPPED);
		2233
		2234	# need to save uniques path
		2235	unless ($self->{deny_save}) {
		2236	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2237
		2238	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2239	if $uniq;
		2240	}
1581		2241
1582	delete $cf::MAP{$self->path};	2242	delete $cf::MAP{$self->path};
1583		2243
		2244	$self->deactivate;
1584	$_->clear_links_to ($self) for values %cf::MAP;	2245	$_->clear_links_to ($self) for values %cf::MAP;
		2246	$self->clear;
1585		2247
1586	$self->unlink_save;	2248	$self->unlink_save;
1587	$self->destroy;	2249	$self->destroy;
1588	}	2250	}
1589		2251
1590	my $nuke_counter = "aaaa";	2252	my $nuke_counter = "aaaa";
1591		2253
1592	sub nuke {	2254	sub nuke {
1593	my ($self) = @_;	2255	my ($self) = @_;
1594		2256
		2257	{
		2258	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2259
		2260	delete $cf::MAP{$self->path};
		2261
		2262	$self->unlink_save;
		2263
		2264	bless $self, "cf::map";
		2265	delete $self->{deny_reset};
1595	$self->{deny_save} = 1;	2266	$self->{deny_save} = 1;
1596	$self->reset_timeout (1);	2267	$self->reset_timeout (1);
1597	$self->rename ("{nuke}/" . ($nuke_counter++));	2268	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2269
		2270	$cf::MAP{$self->path} = $self;
		2271	}
		2272
1598	$self->reset; # polite request, might not happen	2273	$self->reset; # polite request, might not happen
1599	}	2274	}
1600		2275
1601	sub customise_for {	2276	=item $maps = cf::map::tmp_maps
1602	my ($map, $ob) = @_;
1603		2277
1604	if ($map->per_player) {	2278	Returns an arrayref with all map paths of currently instantiated and saved
1605	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2279	maps. May block.
		2280
		2281	=cut
		2282
		2283	sub tmp_maps() {
1606	}	2284	[
		2285	map {
		2286	utf8::decode $_;
		2287	/\.map$/
		2288	? normalise $_
		2289	: ()
		2290	} @{ aio_readdir $TMPDIR or [] }
		2291	]
		2292	}
1607		2293
1608	$map	2294	=item $maps = cf::map::random_maps
		2295
		2296	Returns an arrayref with all map paths of currently instantiated and saved
		2297	random maps. May block.
		2298
		2299	=cut
		2300
		2301	sub random_maps() {
		2302	[
		2303	map {
		2304	utf8::decode $_;
		2305	/\.map$/
		2306	? normalise "?random/$_"
		2307	: ()
		2308	} @{ aio_readdir $RANDOMDIR or [] }
		2309	]
1609	}	2310	}
1610		2311
1611	=item cf::map::unique_maps	2312	=item cf::map::unique_maps
1612		2313
1613	Returns an arrayref of cf::path's of all shared maps that have	2314	Returns an arrayref of paths of all shared maps that have
1614	instantiated unique items. May block.	2315	instantiated unique items. May block.
1615		2316
1616	=cut	2317	=cut
1617		2318
1618	sub unique_maps() {	2319	sub unique_maps() {
1619	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2320	[
1620	or return;	2321	map {
1621
1622	my @paths;
1623
1624	for (@$files) {
1625	utf8::decode $_;	2322	utf8::decode $_;
1626	next if /\.pst$/;	2323	/\.map$/
1627	next unless /^$PATH_SEP/o;	2324	? normalise $_
1628		2325	: ()
1629	push @paths, new cf::path $_;	2326	} @{ aio_readdir $UNIQUEDIR or [] }
1630	}	2327	]
1631
1632	\@paths
1633	}	2328	}
1634		2329
1635	package cf;	2330	package cf;
1636		2331
1637	=back	2332	=back
…		…
1655	map { $_, inv_recursive_ $_->inv } @_	2350	map { $_, inv_recursive_ $_->inv } @_
1656	}	2351	}
1657		2352
1658	sub inv_recursive {	2353	sub inv_recursive {
1659	inv_recursive_ inv $_[0]	2354	inv_recursive_ inv $_[0]
		2355	}
		2356
		2357	=item $ref = $ob->ref
		2358
		2359	creates and returns a persistent reference to an objetc that can be stored as a string.
		2360
		2361	=item $ob = cf::object::deref ($refstring)
		2362
		2363	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2364	even if the object actually exists. May block.
		2365
		2366	=cut
		2367
		2368	sub deref {
		2369	my ($ref) = @_;
		2370
		2371	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2372	my ($uuid, $name) = ($1, $2);
		2373	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2374	or return;
		2375	$pl->ob->uuid eq $uuid
		2376	or return;
		2377
		2378	$pl->ob
		2379	} else {
		2380	warn "$ref: cannot resolve object reference\n";
		2381	undef
		2382	}
1660	}	2383	}
1661		2384
1662	package cf;	2385	package cf;
1663		2386
1664	=back	2387	=back
…		…
1683		2406
1684	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2407	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1685		2408
1686	if ($self->{record_replies}) {	2409	if ($self->{record_replies}) {
1687	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2410	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2411
1688	} else {	2412	} else {
		2413	my $pl = $self->contr;
		2414
		2415	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2416	my $dialog = $pl->{npc_dialog};
		2417	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2418
		2419	} else {
1689	$msg = $npc->name . " says: $msg" if $npc;	2420	$msg = $npc->name . " says: $msg" if $npc;
1690	$self->message ($msg, $flags);	2421	$self->message ($msg, $flags);
		2422	}
1691	}	2423	}
		2424	}
		2425
		2426	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2427
		2428	=cut
		2429
		2430	sub cf::object::send_msg {
		2431	my $pl = shift->contr
		2432	or return;
		2433	$pl->send_msg (@_);
1692	}	2434	}
1693		2435
1694	=item $player_object->may ("access")	2436	=item $player_object->may ("access")
1695		2437
1696	Returns wether the given player is authorized to access resource "access"	2438	Returns wether the given player is authorized to access resource "access"
…		…
1709		2451
1710	=item $player_object->enter_link	2452	=item $player_object->enter_link
1711		2453
1712	Freezes the player and moves him/her to a special map (C<{link}>).	2454	Freezes the player and moves him/her to a special map (C<{link}>).
1713		2455
1714	The player should be reaosnably safe there for short amounts of time. You	2456	The player should be reasonably safe there for short amounts of time. You
1715	I<MUST> call C<leave_link> as soon as possible, though.	2457	I<MUST> call C<leave_link> as soon as possible, though.
1716		2458
		2459	Will never block.
		2460
1717	=item $player_object->leave_link ($map, $x, $y)	2461	=item $player_object->leave_link ($map, $x, $y)
1718		2462
1719	Moves the player out of the specila link map onto the given map. If the	2463	Moves the player out of the special C<{link}> map onto the specified
1720	map is not valid (or omitted), the player will be moved back to the	2464	map. If the map is not valid (or omitted), the player will be moved back
1721	location he/she was before the call to C<enter_link>, or, if that fails,	2465	to the location he/she was before the call to C<enter_link>, or, if that
1722	to the emergency map position.	2466	fails, to the emergency map position.
1723		2467
1724	Might block.	2468	Might block.
1725		2469
1726	=cut	2470	=cut
		2471
		2472	sub link_map {
		2473	unless ($LINK_MAP) {
		2474	$LINK_MAP = cf::map::find "{link}"
		2475	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2476	$LINK_MAP->load;
		2477	}
		2478
		2479	$LINK_MAP
		2480	}
1727		2481
1728	sub cf::object::player::enter_link {	2482	sub cf::object::player::enter_link {
1729	my ($self) = @_;	2483	my ($self) = @_;
1730		2484
1731	$self->deactivate_recursive;	2485	$self->deactivate_recursive;
1732		2486
1733	return if $self->map == $LINK_MAP;	2487	return if UNIVERSAL::isa $self->map, "ext::map_link";
1734		2488
1735	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2489	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1736	if $self->map;	2490	if $self->map && $self->map->{path} ne "{link}";
1737		2491
1738	$self->enter_map ($LINK_MAP, 20, 20);	2492	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1739	}	2493	}
1740		2494
1741	sub cf::object::player::leave_link {	2495	sub cf::object::player::leave_link {
1742	my ($self, $map, $x, $y) = @_;	2496	my ($self, $map, $x, $y) = @_;
		2497
		2498	return unless $self->contr->active;
1743		2499
1744	my $link_pos = delete $self->{_link_pos};	2500	my $link_pos = delete $self->{_link_pos};
1745		2501
1746	unless ($map) {	2502	unless ($map) {
1747	# restore original map position	2503	# restore original map position
…		…
1761	# use -1 or undef as default coordinates, not 0, 0	2517	# use -1 or undef as default coordinates, not 0, 0
1762	($x, $y) = ($map->enter_x, $map->enter_y)	2518	($x, $y) = ($map->enter_x, $map->enter_y)
1763	if $x <=0 && $y <= 0;	2519	if $x <=0 && $y <= 0;
1764		2520
1765	$map->load;	2521	$map->load;
1766	$map->load_diag;	2522	$map->load_neighbours;
1767		2523
1768	return unless $self->contr->active;	2524	return unless $self->contr->active;
1769	$self->activate_recursive;	2525	$self->activate_recursive;
		2526
		2527	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1770	$self->enter_map ($map, $x, $y);	2528	$self->enter_map ($map, $x, $y);
1771	}	2529	}
1772		2530
1773	cf::player->attach (	2531	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1774	on_logout => sub {
1775	my ($pl) = @_;
1776		2532
1777	# abort map switching before logout	2533	Moves the player to the given map-path and coordinates by first freezing
1778	if ($pl->ob->{_link_pos}) {	2534	her, loading and preparing them map, calling the provided $check callback
1779	cf::sync_job {	2535	that has to return the map if sucecssful, and then unfreezes the player on
1780	$pl->ob->leave_link	2536	the new (success) or old (failed) map position. In either case, $done will
1781	};	2537	be called at the end of this process.
1782	}
1783	},
1784	on_login => sub {
1785	my ($pl) = @_;
1786		2538
1787	# try to abort aborted map switching on player login :)
1788	# should happen only on crashes
1789	if ($pl->ob->{_link_pos}) {
1790	$pl->ob->enter_link;
1791	(async {
1792	# we need this sleep as the login has a concurrent enter_exit running
1793	# and this sleep increases chances of the player not ending up in scorn
1794	$pl->ob->reply (undef,
1795	"There was an internal problem at your last logout, "
1796	. "the server will try to bring you to your intended destination in a second.",
1797	cf::NDI_RED);
1798	Coro::Timer::sleep 1;
1799	$pl->ob->leave_link;
1800	})->prio (2);
1801	}
1802	},
1803	);
1804
1805	=item $player_object->goto ($path, $x, $y)
1806
1807	=cut	2539	=cut
		2540
		2541	our $GOTOGEN;
1808		2542
1809	sub cf::object::player::goto {	2543	sub cf::object::player::goto {
1810	my ($self, $path, $x, $y) = @_;	2544	my ($self, $path, $x, $y, $check, $done) = @_;
1811		2545
1812	$path = new cf::path $path;	2546	# do generation counting so two concurrent goto's will be executed in-order
		2547	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1813		2548
1814	$self->enter_link;	2549	$self->enter_link;
1815		2550
1816	(async {	2551	(async {
1817	my $map = cf::map::find $path->as_string;	2552	$Coro::current->{desc} = "player::goto $path $x $y";
		2553
		2554	# *tag paths override both path and x|y
		2555	if ($path =~ /^\*(.*)$/) {
		2556	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2557	my $ob = $obs[rand @obs];
		2558
		2559	# see if we actually can go there
		2560	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2561	$ob = $obs[rand @obs];
		2562	} else {
		2563	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2564	}
		2565	# else put us there anyways for now #d#
		2566
		2567	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2568	} else {
		2569	($path, $x, $y) = (undef, undef, undef);
		2570	}
		2571	}
		2572
		2573	my $map = eval {
		2574	my $map = defined $path ? cf::map::find $path : undef;
		2575
		2576	if ($map) {
1818	$map = $map->customise_for ($self) if $map;	2577	$map = $map->customise_for ($self);
1819		2578	$map = $check->($map) if $check && $map;
1820	# warn "entering ", $map->path, " at ($x, $y)\n"	2579	} else {
1821	# if $map;
1822
1823	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2580	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2581	}
1824		2582
		2583	$map
		2584	};
		2585
		2586	if ($@) {
		2587	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2588	LOG llevError | logBacktrace, Carp::longmess $@;
		2589	}
		2590
		2591	if ($gen == $self->{_goto_generation}) {
		2592	delete $self->{_goto_generation};
1825	$self->leave_link ($map, $x, $y);	2593	$self->leave_link ($map, $x, $y);
		2594	}
		2595
		2596	$done->() if $done;
1826	})->prio (1);	2597	})->prio (1);
1827	}	2598	}
1828		2599
1829	=item $player_object->enter_exit ($exit_object)	2600	=item $player_object->enter_exit ($exit_object)
1830		2601
…		…
1832		2603
1833	sub parse_random_map_params {	2604	sub parse_random_map_params {
1834	my ($spec) = @_;	2605	my ($spec) = @_;
1835		2606
1836	my $rmp = { # defaults	2607	my $rmp = { # defaults
1837	xsize => 10,	2608	xsize => (cf::rndm 15, 40),
1838	ysize => 10,	2609	ysize => (cf::rndm 15, 40),
		2610	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2611	#layout => string,
1839	};	2612	};
1840		2613
1841	for (split /\n/, $spec) {	2614	for (split /\n/, $spec) {
1842	my ($k, $v) = split /\s+/, $_, 2;	2615	my ($k, $v) = split /\s+/, $_, 2;
1843		2616
…		…
1847	$rmp	2620	$rmp
1848	}	2621	}
1849		2622
1850	sub prepare_random_map {	2623	sub prepare_random_map {
1851	my ($exit) = @_;	2624	my ($exit) = @_;
		2625
		2626	my $guard = cf::lock_acquire "exit_prepare:$exit";
1852		2627
1853	# all this does is basically replace the /! path by	2628	# all this does is basically replace the /! path by
1854	# a new random map path (?random/...) with a seed	2629	# a new random map path (?random/...) with a seed
1855	# that depends on the exit object	2630	# that depends on the exit object
1856		2631
1857	my $rmp = parse_random_map_params $exit->msg;	2632	my $rmp = parse_random_map_params $exit->msg;
1858		2633
1859	if ($exit->map) {	2634	if ($exit->map) {
1860	$rmp->{region} = $exit->map->region_name;	2635	$rmp->{region} = $exit->region->name;
1861	$rmp->{origin_map} = $exit->map->path;	2636	$rmp->{origin_map} = $exit->map->path;
1862	$rmp->{origin_x} = $exit->x;	2637	$rmp->{origin_x} = $exit->x;
1863	$rmp->{origin_y} = $exit->y;	2638	$rmp->{origin_y} = $exit->y;
1864	}	2639	}
1865		2640
1866	$rmp->{random_seed} ||= $exit->random_seed;	2641	$rmp->{random_seed} ||= $exit->random_seed;
1867		2642
1868	my $data = cf::to_json $rmp;	2643	my $data = cf::to_json $rmp;
1869	my $md5 = Digest::MD5::md5_hex $data;	2644	my $md5 = Digest::MD5::md5_hex $data;
		2645	my $meta = "$RANDOMDIR/$md5.meta";
1870		2646
1871	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2647	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1872	aio_write $fh, 0, (length $data), $data, 0;	2648	aio_write $fh, 0, (length $data), $data, 0;
		2649	undef $fh;
		2650	aio_rename "$meta~", $meta;
1873		2651
1874	$exit->slaying ("?random/$md5");	2652	$exit->slaying ("?random/$md5");
1875	$exit->msg (undef);	2653	$exit->msg (undef);
1876	}	2654	}
1877	}	2655	}
…		…
1879	sub cf::object::player::enter_exit {	2657	sub cf::object::player::enter_exit {
1880	my ($self, $exit) = @_;	2658	my ($self, $exit) = @_;
1881		2659
1882	return unless $self->type == cf::PLAYER;	2660	return unless $self->type == cf::PLAYER;
1883		2661
		2662	if ($exit->slaying eq "/!") {
		2663	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2664	# the problem is that $exit might not survive long enough
		2665	# so it needs to be done right now, right here
		2666	cf::sync_job { prepare_random_map $exit };
		2667	}
		2668
		2669	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2670	my $hp = $exit->stats->hp;
		2671	my $sp = $exit->stats->sp;
		2672
1884	$self->enter_link;	2673	$self->enter_link;
1885		2674
		2675	# if exit is damned, update players death & WoR home-position
		2676	$self->contr->savebed ($slaying, $hp, $sp)
		2677	if $exit->flag (FLAG_DAMNED);
		2678
1886	(async {	2679	(async {
		2680	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2681
1887	$self->deactivate_recursive; # just to be sure	2682	$self->deactivate_recursive; # just to be sure
1888	unless (eval {	2683	unless (eval {
1889	prepare_random_map $exit	2684	$self->goto ($slaying, $hp, $sp);
1890	if $exit->slaying eq "/!";
1891
1892	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1893	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1894		2685
1895	1;	2686	1;
1896	}) {	2687	}) {
1897	$self->message ("Something went wrong deep within the crossfire server. "	2688	$self->message ("Something went wrong deep within the crossfire server. "
1898	. "I'll try to bring you back to the map you were before. "	2689	. "I'll try to bring you back to the map you were before. "
1899	. "Please report this to the dungeon master!",	2690	. "Please report this to the dungeon master!",
1900	cf::NDI_UNIQUE | cf::NDI_RED);	2691	cf::NDI_UNIQUE | cf::NDI_RED);
1901		2692
1902	warn "ERROR in enter_exit: $@";	2693	warn "ERROR in enter_exit: $@";
1903	$self->leave_link;	2694	$self->leave_link;
1904	}	2695	}
1905	})->prio (1);	2696	})->prio (1);
…		…
1918		2709
1919	sub cf::client::send_drawinfo {	2710	sub cf::client::send_drawinfo {
1920	my ($self, $text, $flags) = @_;	2711	my ($self, $text, $flags) = @_;
1921		2712
1922	utf8::encode $text;	2713	utf8::encode $text;
1923	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2714	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1924	}	2715	}
1925		2716
		2717	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2718
		2719	Send a drawinfo or msg packet to the client, formatting the msg for the
		2720	client if neccessary. C<$type> should be a string identifying the type of
		2721	the message, with C<log> being the default. If C<$color> is negative, suppress
		2722	the message unless the client supports the msg packet.
		2723
		2724	=cut
		2725
		2726	# non-persistent channels (usually the info channel)
		2727	our %CHANNEL = (
		2728	"c/identify" => {
		2729	id => "infobox",
		2730	title => "Identify",
		2731	reply => undef,
		2732	tooltip => "Items recently identified",
		2733	},
		2734	"c/examine" => {
		2735	id => "infobox",
		2736	title => "Examine",
		2737	reply => undef,
		2738	tooltip => "Signs and other items you examined",
		2739	},
		2740	"c/book" => {
		2741	id => "infobox",
		2742	title => "Book",
		2743	reply => undef,
		2744	tooltip => "The contents of a note or book",
		2745	},
		2746	"c/lookat" => {
		2747	id => "infobox",
		2748	title => "Look",
		2749	reply => undef,
		2750	tooltip => "What you saw there",
		2751	},
		2752	"c/who" => {
		2753	id => "infobox",
		2754	title => "Players",
		2755	reply => undef,
		2756	tooltip => "Shows players who are currently online",
		2757	},
		2758	"c/body" => {
		2759	id => "infobox",
		2760	title => "Body Parts",
		2761	reply => undef,
		2762	tooltip => "Shows which body parts you posess and are available",
		2763	},
		2764	"c/uptime" => {
		2765	id => "infobox",
		2766	title => "Uptime",
		2767	reply => undef,
		2768	tooltip => "How long the server has been running since last restart",
		2769	},
		2770	"c/mapinfo" => {
		2771	id => "infobox",
		2772	title => "Map Info",
		2773	reply => undef,
		2774	tooltip => "Information related to the maps",
		2775	},
		2776	);
		2777
		2778	sub cf::client::send_msg {
		2779	my ($self, $channel, $msg, $color, @extra) = @_;
		2780
		2781	$msg = $self->pl->expand_cfpod ($msg);
		2782
		2783	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2784
		2785	# check predefined channels, for the benefit of C
		2786	if ($CHANNEL{$channel}) {
		2787	$channel = $CHANNEL{$channel};
		2788
		2789	$self->ext_msg (channel_info => $channel)
		2790	if $self->can_msg;
		2791
		2792	$channel = $channel->{id};
		2793
		2794	} elsif (ref $channel) {
		2795	# send meta info to client, if not yet sent
		2796	unless (exists $self->{channel}{$channel->{id}}) {
		2797	$self->{channel}{$channel->{id}} = $channel;
		2798	$self->ext_msg (channel_info => $channel)
		2799	if $self->can_msg;
		2800	}
		2801
		2802	$channel = $channel->{id};
		2803	}
		2804
		2805	return unless @extra || length $msg;
		2806
		2807	if ($self->can_msg) {
		2808	# default colour, mask it out
		2809	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2810	if $color & cf::NDI_DEF;
		2811
		2812	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2813	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2814	} else {
		2815	if ($color >= 0) {
		2816	# replace some tags by gcfclient-compatible ones
		2817	for ($msg) {
		2818	1 while
		2819	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2820	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2821	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2822	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2823	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2824	}
		2825
		2826	$color &= cf::NDI_COLOR_MASK;
		2827
		2828	utf8::encode $msg;
		2829
		2830	if (0 && $msg =~ /\[/) {
		2831	# COMMAND/INFO
		2832	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2833	} else {
		2834	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2835	$self->send_packet ("drawinfo $color $msg")
		2836	}
		2837	}
		2838	}
		2839	}
		2840
		2841	=item $client->ext_msg ($type, @msg)
		2842
		2843	Sends an ext event to the client.
		2844
		2845	=cut
		2846
		2847	sub cf::client::ext_msg($$@) {
		2848	my ($self, $type, @msg) = @_;
		2849
		2850	if ($self->extcmd == 2) {
		2851	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2852	} elsif ($self->extcmd == 1) { # TODO: remove
		2853	push @msg, msgtype => "event_$type";
		2854	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2855	}
		2856	}
		2857
		2858	=item $client->ext_reply ($msgid, @msg)
		2859
		2860	Sends an ext reply to the client.
		2861
		2862	=cut
		2863
		2864	sub cf::client::ext_reply($$@) {
		2865	my ($self, $id, @msg) = @_;
		2866
		2867	if ($self->extcmd == 2) {
		2868	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2869	} elsif ($self->extcmd == 1) {
		2870	#TODO: version 1, remove
		2871	unshift @msg, msgtype => "reply", msgid => $id;
		2872	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2873	}
		2874	}
1926		2875
1927	=item $success = $client->query ($flags, "text", \&cb)	2876	=item $success = $client->query ($flags, "text", \&cb)
1928		2877
1929	Queues a query to the client, calling the given callback with	2878	Queues a query to the client, calling the given callback with
1930	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2879	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1931	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2880	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1932		2881
1933	Queries can fail, so check the return code. Or don't, as queries will become	2882	Queries can fail, so check the return code. Or don't, as queries will
1934	reliable at some point in the future.	2883	become reliable at some point in the future.
1935		2884
1936	=cut	2885	=cut
1937		2886
1938	sub cf::client::query {	2887	sub cf::client::query {
1939	my ($self, $flags, $text, $cb) = @_;	2888	my ($self, $flags, $text, $cb) = @_;
…		…
1947	utf8::encode $text;	2896	utf8::encode $text;
1948	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2897	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1949		2898
1950	$self->send_packet ($self->{query_queue}[0][0])	2899	$self->send_packet ($self->{query_queue}[0][0])
1951	if @{ $self->{query_queue} } == 1;	2900	if @{ $self->{query_queue} } == 1;
		2901
		2902	1
1952	}	2903	}
1953		2904
1954	cf::client->attach (	2905	cf::client->attach (
		2906	on_connect => sub {
		2907	my ($ns) = @_;
		2908
		2909	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2910	},
1955	on_reply => sub {	2911	on_reply => sub {
1956	my ($ns, $msg) = @_;	2912	my ($ns, $msg) = @_;
1957		2913
1958	# this weird shuffling is so that direct followup queries	2914	# this weird shuffling is so that direct followup queries
1959	# get handled first	2915	# get handled first
1960	my $queue = delete $ns->{query_queue}	2916	my $queue = delete $ns->{query_queue}
1961	or return; # be conservative, not sure how that can happen, but we saw a crash here	2917	or return; # be conservative, not sure how that can happen, but we saw a crash here
1962		2918
1963	(shift @$queue)->[1]->($msg);	2919	(shift @$queue)->[1]->($msg);
		2920	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1964		2921
1965	push @{ $ns->{query_queue} }, @$queue;	2922	push @{ $ns->{query_queue} }, @$queue;
1966		2923
1967	if (@{ $ns->{query_queue} } == @$queue) {	2924	if (@{ $ns->{query_queue} } == @$queue) {
1968	if (@$queue) {	2925	if (@$queue) {
…		…
1970	} else {	2927	} else {
1971	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2928	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1972	}	2929	}
1973	}	2930	}
1974	},	2931	},
		2932	on_exticmd => sub {
		2933	my ($ns, $buf) = @_;
		2934
		2935	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2936
		2937	if (ref $msg) {
		2938	my ($type, $reply, @payload) =
		2939	"ARRAY" eq ref $msg
		2940	? @$msg
		2941	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2942
		2943	my @reply;
		2944
		2945	if (my $cb = $EXTICMD{$type}) {
		2946	@reply = $cb->($ns, @payload);
		2947	}
		2948
		2949	$ns->ext_reply ($reply, @reply)
		2950	if $reply;
		2951
		2952	} else {
		2953	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2954	}
		2955
		2956	cf::override;
		2957	},
1975	);	2958	);
1976		2959
1977	=item $client->async (\&cb)	2960	=item $client->async (\&cb)
1978		2961
1979	Create a new coroutine, running the specified callback. The coroutine will	2962	Create a new coroutine, running the specified callback. The coroutine will
…		…
2020	our $safe = new Safe "safe";	3003	our $safe = new Safe "safe";
2021	our $safe_hole = new Safe::Hole;	3004	our $safe_hole = new Safe::Hole;
2022		3005
2023	$SIG{FPE} = 'IGNORE';	3006	$SIG{FPE} = 'IGNORE';
2024		3007
2025	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3008	$safe->permit_only (Opcode::opset qw(
		3009	:base_core :base_mem :base_orig :base_math
		3010	grepstart grepwhile mapstart mapwhile
		3011	sort time
		3012	));
2026		3013
2027	# here we export the classes and methods available to script code	3014	# here we export the classes and methods available to script code
2028		3015
2029	=pod	3016	=pod
2030		3017
2031	The following fucntions and emthods are available within a safe environment:	3018	The following functions and methods are available within a safe environment:
2032		3019
2033	cf::object contr pay_amount pay_player map	3020	cf::object
		3021	contr pay_amount pay_player map x y force_find force_add destroy
		3022	insert remove name archname title slaying race decrease_ob_nr
		3023
2034	cf::object::player player	3024	cf::object::player
2035	cf::player peaceful	3025	player
2036	cf::map trigger	3026
		3027	cf::player
		3028	peaceful
		3029
		3030	cf::map
		3031	trigger
2037		3032
2038	=cut	3033	=cut
2039		3034
2040	for (	3035	for (
2041	["cf::object" => qw(contr pay_amount pay_player map)],	3036	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3037	insert remove inv name archname title slaying race
		3038	decrease_ob_nr destroy)],
2042	["cf::object::player" => qw(player)],	3039	["cf::object::player" => qw(player)],
2043	["cf::player" => qw(peaceful)],	3040	["cf::player" => qw(peaceful)],
2044	["cf::map" => qw(trigger)],	3041	["cf::map" => qw(trigger)],
2045	) {	3042	) {
2046	no strict 'refs';	3043	no strict 'refs';
…		…
2117	=back	3114	=back
2118		3115
2119	=cut	3116	=cut
2120		3117
2121	#############################################################################	3118	#############################################################################
		3119	# the server's init and main functions
2122		3120
2123	=head2 EXTENSION DATABASE SUPPORT	3121	sub load_facedata($) {
		3122	my ($path) = @_;
2124		3123
2125	Crossfire maintains a very simple database for extension use. It can	3124	# HACK to clear player env face cache, we need some signal framework
2126	currently store anything that can be serialised using Storable, which	3125	# for this (global event?)
2127	excludes objects.	3126	%ext::player_env::MUSIC_FACE_CACHE = ();
2128		3127
2129	The parameter C<$family> should best start with the name of the extension	3128	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2130	using it, it should be unique.
2131		3129
2132	=over 4	3130	warn "loading facedata from $path\n";
2133		3131
2134	=item $hashref = cf::db_get $family	3132	my $facedata;
		3133	0 < aio_load $path, $facedata
		3134	or die "$path: $!";
2135		3135
2136	Return a hashref for use by the extension C<$family>, which can be	3136	$facedata = Coro::Storable::thaw $facedata;
2137	modified. After modifications, you have to call C<cf::db_dirty> or
2138	C<cf::db_sync>.
2139		3137
2140	=item $value = cf::db_get $family => $key	3138	$facedata->{version} == 2
		3139	or cf::cleanup "$path: version mismatch, cannot proceed.";
2141		3140
2142	Returns a single value from the database	3141	# patch in the exptable
2143		3142	$facedata->{resource}{"res/exp_table"} = {
2144	=item cf::db_put $family => $hashref	3143	type => FT_RSRC,
2145		3144	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2146	Stores the given family hashref into the database. Updates are delayed, if
2147	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2148
2149	=item cf::db_put $family => $key => $value
2150
2151	Stores the given C<$value> in the family hash. Updates are delayed, if you
2152	want the data to be synced to disk immediately, use C<cf::db_sync>.
2153
2154	=item cf::db_dirty
2155
2156	Marks the database as dirty, to be updated at a later time.
2157
2158	=item cf::db_sync
2159
2160	Immediately write the database to disk I<if it is dirty>.
2161
2162	=cut
2163
2164	our $DB;
2165
2166	{
2167	my $path = cf::localdir . "/database.pst";
2168
2169	sub db_load() {
2170	$DB = stat $path ? Storable::retrieve $path : { };
2171	}
2172
2173	my $pid;
2174
2175	sub db_save() {
2176	waitpid $pid, 0 if $pid;
2177	if (0 == ($pid = fork)) {
2178	$DB->{_meta}{version} = 1;
2179	Storable::nstore $DB, "$path~";
2180	rename "$path~", $path;
2181	cf::_exit 0 if defined $pid;
2182	}
2183	}
2184
2185	my $dirty;
2186
2187	sub db_sync() {
2188	db_save if $dirty;
2189	undef $dirty;
2190	}
2191
2192	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2193	db_sync;
2194	});	3145	};
		3146	cf::cede_to_tick;
2195		3147
2196	sub db_dirty() {
2197	$dirty = 1;
2198	$idle->start;
2199	}	3148	{
		3149	my $faces = $facedata->{faceinfo};
2200		3150
2201	sub db_get($;$) {	3151	while (my ($face, $info) = each %$faces) {
2202	@_ >= 2	3152	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2203	? $DB->{$_[0]}{$_[1]}	3153	cf::face::set_visibility $idx, $info->{visibility};
2204	: ($DB->{$_[0]} ||= { })	3154	cf::face::set_magicmap $idx, $info->{magicmap};
2205	}	3155	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3156	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2206		3157
2207	sub db_put($$;$) {	3158	cf::cede_to_tick;
2208	if (@_ >= 3) {
2209	$DB->{$_[0]}{$_[1]} = $_[2];
2210	} else {
2211	$DB->{$_[0]} = $_[1];
2212	}
2213	db_dirty;
2214	}
2215
2216	cf::global->attach (
2217	prio => 10000,
2218	on_cleanup => sub {
2219	db_sync;
2220	},	3159	}
2221	);
2222	}
2223		3160
2224	#############################################################################	3161	while (my ($face, $info) = each %$faces) {
2225	# the server's main()	3162	next unless $info->{smooth};
		3163	my $idx = cf::face::find $face
		3164	or next;
		3165	if (my $smooth = cf::face::find $info->{smooth}) {
		3166	cf::face::set_smooth $idx, $smooth;
		3167	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3168	} else {
		3169	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3170	}
2226		3171
2227	sub cfg_load {	3172	cf::cede_to_tick;
		3173	}
		3174	}
		3175
		3176	{
		3177	my $anims = $facedata->{animinfo};
		3178
		3179	while (my ($anim, $info) = each %$anims) {
		3180	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3181	cf::cede_to_tick;
		3182	}
		3183
		3184	cf::anim::invalidate_all; # d'oh
		3185	}
		3186
		3187	{
		3188	# TODO: for gcfclient pleasure, we should give resources
		3189	# that gcfclient doesn't grok a >10000 face index.
		3190	my $res = $facedata->{resource};
		3191
		3192	my $soundconf = delete $res->{"res/sound.conf"};
		3193
		3194	while (my ($name, $info) = each %$res) {
		3195	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3196	my $data;
		3197
		3198	if ($info->{type} & 1) {
		3199	# prepend meta info
		3200
		3201	my $meta = $enc->encode ({
		3202	name => $name,
		3203	%{ $info->{meta} || {} },
		3204	});
		3205
		3206	$data = pack "(w/a*)*", $meta, $info->{data};
		3207	} else {
		3208	$data = $info->{data};
		3209	}
		3210
		3211	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3212	cf::face::set_type $idx, $info->{type};
		3213
		3214	cf::cede_to_tick;
		3215	}
		3216
		3217	if ($soundconf) {
		3218	$soundconf = $enc->decode (delete $soundconf->{data});
		3219
		3220	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3221	my $sound = $soundconf->{compat}[$_]
		3222	or next;
		3223
		3224	my $face = cf::face::find "sound/$sound->[1]";
		3225	cf::sound::set $sound->[0] => $face;
		3226	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3227	}
		3228
		3229	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3230	my $face = cf::face::find "sound/$v";
		3231	cf::sound::set $k => $face;
		3232	}
		3233	}
		3234	}
		3235
		3236	1
		3237	}
		3238
		3239	register_exticmd fx_want => sub {
		3240	my ($ns, $want) = @_;
		3241
		3242	while (my ($k, $v) = each %$want) {
		3243	$ns->fx_want ($k, $v);
		3244	}
		3245	};
		3246
		3247	sub reload_regions {
		3248	# HACK to clear player env face cache, we need some signal framework
		3249	# for this (global event?)
		3250	%ext::player_env::MUSIC_FACE_CACHE = ();
		3251
		3252	load_resource_file "$MAPDIR/regions"
		3253	or die "unable to load regions file\n";
		3254
		3255	for (cf::region::list) {
		3256	$_->{match} = qr/$_->{match}/
		3257	if exists $_->{match};
		3258	}
		3259	}
		3260
		3261	sub reload_facedata {
		3262	load_facedata "$DATADIR/facedata"
		3263	or die "unable to load facedata\n";
		3264	}
		3265
		3266	sub reload_archetypes {
		3267	load_resource_file "$DATADIR/archetypes"
		3268	or die "unable to load archetypes\n";
		3269	#d# NEED to laod twice to resolve forward references
		3270	# this really needs to be done in an extra post-pass
		3271	# (which needs to be synchronous, so solve it differently)
		3272	load_resource_file "$DATADIR/archetypes"
		3273	or die "unable to load archetypes\n";
		3274	}
		3275
		3276	sub reload_treasures {
		3277	load_resource_file "$DATADIR/treasures"
		3278	or die "unable to load treasurelists\n";
		3279	}
		3280
		3281	sub reload_resources {
		3282	warn "reloading resource files...\n";
		3283
		3284	reload_regions;
		3285	reload_facedata;
		3286	#reload_archetypes;#d#
		3287	reload_archetypes;
		3288	reload_treasures;
		3289
		3290	warn "finished reloading resource files\n";
		3291	}
		3292
		3293	sub init {
		3294	reload_resources;
		3295	}
		3296
		3297	sub reload_config {
2228	open my $fh, "<:utf8", cf::confdir . "/config"	3298	open my $fh, "<:utf8", "$CONFDIR/config"
2229	or return;	3299	or return;
2230		3300
2231	local $/;	3301	local $/;
2232	*CFG = YAML::Syck::Load <$fh>;	3302	*CFG = YAML::Syck::Load <$fh>;
2233		3303
…		…
2247		3317
2248	sub main {	3318	sub main {
2249	# we must not ever block the main coroutine	3319	# we must not ever block the main coroutine
2250	local $Coro::idle = sub {	3320	local $Coro::idle = sub {
2251	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3321	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2252	async { Event::one_event };	3322	(async {
		3323	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3324	EV::loop EV::LOOP_ONESHOT;
		3325	})->prio (Coro::PRIO_MAX);
2253	};	3326	};
2254		3327
2255	cfg_load;	3328	reload_config;
2256	db_load;	3329	db_init;
2257	load_extensions;	3330	load_extensions;
		3331
		3332	$TICK_WATCHER->start;
2258	Event::loop;	3333	EV::loop;
2259	}	3334	}
2260		3335
2261	#############################################################################	3336	#############################################################################
2262	# initialisation and cleanup	3337	# initialisation and cleanup
2263		3338
2264	# install some emergency cleanup handlers	3339	# install some emergency cleanup handlers
2265	BEGIN {	3340	BEGIN {
		3341	our %SIGWATCHER = ();
2266	for my $signal (qw(INT HUP TERM)) {	3342	for my $signal (qw(INT HUP TERM)) {
2267	Event->signal (	3343	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2268	data => WF_AUTOCANCEL,
2269	signal => $signal,
2270	cb => sub {
2271	cf::cleanup "SIG$signal";	3344	cf::cleanup "SIG$signal";
2272	},
2273	);	3345	};
		3346	}
		3347	}
		3348
		3349	sub write_runtime {
		3350	my $runtime = "$LOCALDIR/runtime";
		3351
		3352	# first touch the runtime file to show we are still running:
		3353	# the fsync below can take a very very long time.
		3354
		3355	IO::AIO::aio_utime $runtime, undef, undef;
		3356
		3357	my $guard = cf::lock_acquire "write_runtime";
		3358
		3359	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3360	or return;
		3361
		3362	my $value = $cf::RUNTIME + 90 + 10;
		3363	# 10 is the runtime save interval, for a monotonic clock
		3364	# 60 allows for the watchdog to kill the server.
		3365
		3366	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3367	and return;
		3368
		3369	# always fsync - this file is important
		3370	aio_fsync $fh
		3371	and return;
		3372
		3373	# touch it again to show we are up-to-date
		3374	aio_utime $fh, undef, undef;
		3375
		3376	close $fh
		3377	or return;
		3378
		3379	aio_rename "$runtime~", $runtime
		3380	and return;
		3381
		3382	warn "runtime file written.\n";
		3383
2274	}	3384	1
2275	}	3385	}
2276		3386
2277	sub emergency_save() {	3387	sub emergency_save() {
2278	my $freeze_guard = cf::freeze_mainloop;	3388	my $freeze_guard = cf::freeze_mainloop;
2279		3389
2280	warn "enter emergency perl save\n";	3390	warn "enter emergency perl save\n";
2281		3391
2282	cf::sync_job {	3392	cf::sync_job {
2283	# use a peculiar iteration method to avoid tripping on perl	3393	# use a peculiar iteration method to avoid tripping on perl
2284	# refcount bugs in for. also avoids problems with players	3394	# refcount bugs in for. also avoids problems with players
2285	# and maps saved/Destroyed asynchronously.	3395	# and maps saved/destroyed asynchronously.
2286	warn "begin emergency player save\n";	3396	warn "begin emergency player save\n";
2287	for my $login (keys %cf::PLAYER) {	3397	for my $login (keys %cf::PLAYER) {
2288	my $pl = $cf::PLAYER{$login} or next;	3398	my $pl = $cf::PLAYER{$login} or next;
2289	$pl->valid or next;	3399	$pl->valid or next;
		3400	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2290	$pl->save;	3401	$pl->save;
2291	}	3402	}
2292	warn "end emergency player save\n";	3403	warn "end emergency player save\n";
2293		3404
2294	warn "begin emergency map save\n";	3405	warn "begin emergency map save\n";
…		…
2296	my $map = $cf::MAP{$path} or next;	3407	my $map = $cf::MAP{$path} or next;
2297	$map->valid or next;	3408	$map->valid or next;
2298	$map->save;	3409	$map->save;
2299	}	3410	}
2300	warn "end emergency map save\n";	3411	warn "end emergency map save\n";
		3412
		3413	warn "begin emergency database checkpoint\n";
		3414	BDB::db_env_txn_checkpoint $DB_ENV;
		3415	warn "end emergency database checkpoint\n";
2301	};	3416	};
2302		3417
2303	warn "leave emergency perl save\n";	3418	warn "leave emergency perl save\n";
2304	}	3419	}
2305		3420
		3421	sub post_cleanup {
		3422	my ($make_core) = @_;
		3423
		3424	warn Carp::longmess "post_cleanup backtrace"
		3425	if $make_core;
		3426	}
		3427
2306	sub reload() {	3428	sub do_reload_perl() {
2307	# can/must only be called in main	3429	# can/must only be called in main
2308	if ($Coro::current != $Coro::main) {	3430	if ($Coro::current != $Coro::main) {
2309	warn "can only reload from main coroutine\n";	3431	warn "can only reload from main coroutine";
2310	return;	3432	return;
2311	}	3433	}
2312		3434
2313	warn "reloading...";	3435	warn "reloading...";
2314		3436
2315	warn "freezing server";	3437	warn "entering sync_job";
2316	my $guard = freeze_mainloop;	3438
		3439	cf::sync_job {
		3440	cf::write_runtime; # external watchdog should not bark
2317	cf::emergency_save;	3441	cf::emergency_save;
		3442	cf::write_runtime; # external watchdog should not bark
2318		3443
2319	warn "sync database to disk";	3444	warn "syncing database to disk";
2320	cf::db_sync;	3445	BDB::db_env_txn_checkpoint $DB_ENV;
2321	IO::AIO::flush;
2322		3446
2323	eval {
2324	# if anything goes wrong in here, we should simply crash as we already saved	3447	# if anything goes wrong in here, we should simply crash as we already saved
2325		3448
2326	warn "cancel all watchers";	3449	warn "flushing outstanding aio requests";
2327	for (Event::all_watchers) {	3450	for (;;) {
2328	$_->cancel if $_->data & WF_AUTOCANCEL;	3451	BDB::flush;
		3452	IO::AIO::flush;
		3453	Coro::cede_notself;
		3454	last unless IO::AIO::nreqs || BDB::nreqs;
		3455	warn "iterate...";
2329	}	3456	}
2330		3457
		3458	++$RELOAD;
		3459
2331	warn "cancel all extension coros";	3460	warn "cancelling all extension coros";
2332	$_->cancel for values %EXT_CORO;	3461	$_->cancel for values %EXT_CORO;
2333	%EXT_CORO = ();	3462	%EXT_CORO = ();
2334		3463
2335	warn "remove commands";	3464	warn "removing commands";
2336	%COMMAND = ();	3465	%COMMAND = ();
2337		3466
2338	warn "remove ext commands";	3467	warn "removing ext/exti commands";
2339	%EXTCMD = ();	3468	%EXTCMD = ();
		3469	%EXTICMD = ();
2340		3470
2341	warn "unload/nuke all extensions";	3471	warn "unloading/nuking all extensions";
2342	for my $pkg (@EXTS) {	3472	for my $pkg (@EXTS) {
2343	warn "... unloading $pkg";	3473	warn "... unloading $pkg";
2344		3474
2345	if (my $cb = $pkg->can ("unload")) {	3475	if (my $cb = $pkg->can ("unload")) {
2346	eval {	3476	eval {
…		…
2351		3481
2352	warn "... nuking $pkg";	3482	warn "... nuking $pkg";
2353	Symbol::delete_package $pkg;	3483	Symbol::delete_package $pkg;
2354	}	3484	}
2355		3485
2356	warn "unload all perl modules loaded from $LIBDIR";	3486	warn "unloading all perl modules loaded from $LIBDIR";
2357	while (my ($k, $v) = each %INC) {	3487	while (my ($k, $v) = each %INC) {
2358	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3488	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2359		3489
2360	warn "removing <$k>";	3490	warn "... unloading $k";
2361	delete $INC{$k};	3491	delete $INC{$k};
2362		3492
2363	$k =~ s/\.pm$//;	3493	$k =~ s/\.pm$//;
2364	$k =~ s/\//::/g;	3494	$k =~ s/\//::/g;
2365		3495
…		…
2368	}	3498	}
2369		3499
2370	Symbol::delete_package $k;	3500	Symbol::delete_package $k;
2371	}	3501	}
2372		3502
2373	warn "get rid of safe::, as good as possible";	3503	warn "getting rid of safe::, as good as possible";
2374	Symbol::delete_package "safe::$_"	3504	Symbol::delete_package "safe::$_"
2375	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3505	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2376		3506
2377	warn "unload cf.pm \"a bit\"";	3507	warn "unloading cf.pm \"a bit\"";
2378	delete $INC{"cf.pm"};	3508	delete $INC{"cf.pm"};
		3509	delete $INC{"cf/pod.pm"};
2379		3510
2380	# don't, removes xs symbols, too,	3511	# don't, removes xs symbols, too,
2381	# and global variables created in xs	3512	# and global variables created in xs
2382	#Symbol::delete_package __PACKAGE__;	3513	#Symbol::delete_package __PACKAGE__;
2383		3514
		3515	warn "unload completed, starting to reload now";
		3516
2384	warn "reloading cf.pm";	3517	warn "reloading cf.pm";
2385	require cf;	3518	require cf;
2386	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3519	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2387		3520
2388	warn "load config and database again";	3521	warn "loading config and database again";
2389	cf::cfg_load;	3522	cf::reload_config;
2390	cf::db_load;
2391		3523
2392	warn "load extensions";	3524	warn "loading extensions";
2393	cf::load_extensions;	3525	cf::load_extensions;
2394		3526
2395	warn "reattach attachments to objects/players";	3527	warn "reattaching attachments to objects/players";
2396	_global_reattach;	3528	_global_reattach; # objects, sockets
2397	warn "reattach attachments to maps";	3529	warn "reattaching attachments to maps";
2398	reattach $_ for values %MAP;	3530	reattach $_ for values %MAP;
2399	};	3531	warn "reattaching attachments to players";
		3532	reattach $_ for values %PLAYER;
2400		3533
2401	if ($@) {	3534	warn "leaving sync_job";
		3535
		3536	1
		3537	} or do {
2402	warn $@;	3538	warn $@;
2403	warn "error while reloading, exiting.";	3539	warn "error while reloading, exiting.";
2404	exit 1;	3540	exit 1;
2405	}	3541	};
2406		3542
2407	warn "reloaded";	3543	warn "reloaded";
2408	};	3544	};
2409		3545
2410	#############################################################################	3546	our $RELOAD_WATCHER; # used only during reload
2411		3547
2412	unless ($LINK_MAP) {	3548	sub reload_perl() {
2413	$LINK_MAP = cf::map::new;	3549	# doing reload synchronously and two reloads happen back-to-back,
		3550	# coro crashes during coro_state_free->destroy here.
2414		3551
2415	$LINK_MAP->width (41);	3552	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
2416	$LINK_MAP->height (41);	3553	undef $RELOAD_WATCHER;
2417	$LINK_MAP->alloc;	3554	do_reload_perl;
2418	$LINK_MAP->path ("{link}");	3555	};
2419	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2420	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2421
2422	# dirty hack because... archetypes are not yet loaded
2423	Event->timer (
2424	after => 10,
2425	cb => sub {
2426	$_[0]->w->cancel;
2427
2428	# provide some exits "home"
2429	my $exit = cf::object::new "exit";
2430
2431	$exit->slaying ($EMERGENCY_POSITION->[0]);
2432	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2433	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2434
2435	$LINK_MAP->insert ($exit->clone, 19, 19);
2436	$LINK_MAP->insert ($exit->clone, 19, 20);
2437	$LINK_MAP->insert ($exit->clone, 19, 21);
2438	$LINK_MAP->insert ($exit->clone, 20, 19);
2439	$LINK_MAP->insert ($exit->clone, 20, 21);
2440	$LINK_MAP->insert ($exit->clone, 21, 19);
2441	$LINK_MAP->insert ($exit->clone, 21, 20);
2442	$LINK_MAP->insert ($exit->clone, 21, 21);
2443
2444	$exit->destroy;
2445	});
2446
2447	$LINK_MAP->{deny_save} = 1;
2448	$LINK_MAP->{deny_reset} = 1;
2449
2450	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2451	}	3556	}
2452		3557
2453	register_command "reload" => sub {	3558	register_command "reload" => sub {
2454	my ($who, $arg) = @_;	3559	my ($who, $arg) = @_;
2455		3560
2456	if ($who->flag (FLAG_WIZ)) {	3561	if ($who->flag (FLAG_WIZ)) {
2457	$who->message ("start of reload.");
2458	reload;
2459	$who->message ("end of reload.");	3562	$who->message ("reloading server.");
		3563	async {
		3564	$Coro::current->{desc} = "perl_reload";
		3565	reload_perl;
		3566	};
2460	}	3567	}
2461	};	3568	};
2462		3569
2463	unshift @INC, $LIBDIR;	3570	unshift @INC, $LIBDIR;
2464		3571
2465	$TICK_WATCHER = Event->timer (	3572	my $bug_warning = 0;
2466	reentrant => 0,	3573
2467	prio => 0,	3574	our @WAIT_FOR_TICK;
2468	at => $NEXT_TICK || $TICK,	3575	our @WAIT_FOR_TICK_BEGIN;
2469	data => WF_AUTOCANCEL,	3576
2470	cb => sub {	3577	sub wait_for_tick {
		3578	return unless $TICK_WATCHER->is_active;
		3579	return if $Coro::current == $Coro::main;
		3580
		3581	my $signal = new Coro::Signal;
		3582	push @WAIT_FOR_TICK, $signal;
		3583	$signal->wait;
		3584	}
		3585
		3586	sub wait_for_tick_begin {
		3587	return unless $TICK_WATCHER->is_active;
		3588	return if $Coro::current == $Coro::main;
		3589
		3590	my $signal = new Coro::Signal;
		3591	push @WAIT_FOR_TICK_BEGIN, $signal;
		3592	$signal->wait;
		3593	}
		3594
		3595	$TICK_WATCHER = EV::periodic_ns 0, $TICK, 0, sub {
		3596	if ($Coro::current != $Coro::main) {
		3597	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3598	unless ++$bug_warning > 10;
		3599	return;
		3600	}
		3601
		3602	$NOW = $tick_start = EV::now;
		3603
2471	cf::server_tick; # one server iteration	3604	cf::server_tick; # one server iteration
		3605
2472	$RUNTIME += $TICK;	3606	$RUNTIME += $TICK;
2473	$NEXT_TICK += $TICK;	3607	$NEXT_TICK += $TICK;
2474		3608
2475	$WAIT_FOR_TICK->broadcast;	3609	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2476	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3610	$NEXT_RUNTIME_WRITE = $NOW + 10;
2477		3611	Coro::async_pool {
2478	# if we are delayed by four ticks or more, skip them all	3612	$Coro::current->{desc} = "runtime saver";
2479	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2480
2481	$TICK_WATCHER->at ($NEXT_TICK);
2482	$TICK_WATCHER->start;
2483	},
2484	);
2485
2486	IO::AIO::max_poll_time $TICK * 0.2;
2487
2488	Event->io (
2489	fd => IO::AIO::poll_fileno,
2490	poll => 'r',
2491	prio => 5,
2492	data => WF_AUTOCANCEL,
2493	cb => \&IO::AIO::poll_cb,
2494	);
2495
2496	Event->timer (
2497	data => WF_AUTOCANCEL,
2498	after => 0,
2499	interval => 10,
2500	cb => sub {
2501	(Coro::unblock_sub {
2502	write_runtime	3613	write_runtime
2503	or warn "ERROR: unable to write runtime file: $!";	3614	or warn "ERROR: unable to write runtime file: $!";
2504	})->();	3615	};
2505	},	3616	}
2506	);	3617
		3618	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3619	$sig->send;
		3620	}
		3621	while (my $sig = shift @WAIT_FOR_TICK) {
		3622	$sig->send;
		3623	}
		3624
		3625	$LOAD = ($NOW - $tick_start) / $TICK;
		3626	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3627
		3628	_post_tick;
		3629	};
		3630	$TICK_WATCHER->priority (EV::MAXPRI);
		3631
		3632	{
		3633	BDB::min_parallel 8;
		3634	BDB::max_poll_time $TICK * 0.1;
		3635	$BDB_POLL_WATCHER = EV::io BDB::poll_fileno, EV::READ, \&BDB::poll_cb;
		3636
		3637	BDB::set_sync_prepare {
		3638	my $status;
		3639	my $current = $Coro::current;
		3640	(
		3641	sub {
		3642	$status = $!;
		3643	$current->ready; undef $current;
		3644	},
		3645	sub {
		3646	Coro::schedule while defined $current;
		3647	$! = $status;
		3648	},
		3649	)
		3650	};
		3651
		3652	unless ($DB_ENV) {
		3653	$DB_ENV = BDB::db_env_create;
		3654	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3655	| BDB::LOG_AUTOREMOVE, 1);
		3656	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3657	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3658
		3659	cf::sync_job {
		3660	eval {
		3661	BDB::db_env_open
		3662	$DB_ENV,
		3663	$BDBDIR,
		3664	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3665	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3666	0666;
		3667
		3668	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3669	};
		3670
		3671	cf::cleanup "db_env_open(db): $@" if $@;
		3672	};
		3673	}
		3674
		3675	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3676	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3677	};
		3678	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3679	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3680	};
		3681	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3682	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3683	};
		3684	}
		3685
		3686	{
		3687	IO::AIO::min_parallel 8;
		3688
		3689	undef $Coro::AIO::WATCHER;
		3690	IO::AIO::max_poll_time $TICK * 0.1;
		3691	$AIO_POLL_WATCHER = EV::io IO::AIO::poll_fileno, EV::READ, \&IO::AIO::poll_cb;
		3692	}
		3693
		3694	my $_log_backtrace;
		3695
		3696	sub _log_backtrace {
		3697	my ($msg, @addr) = @_;
		3698
		3699	$msg =~ s/\n//;
		3700
		3701	# limit the # of concurrent backtraces
		3702	if ($_log_backtrace < 2) {
		3703	++$_log_backtrace;
		3704	async {
		3705	$Coro::current->{desc} = "abt $msg";
		3706
		3707	my @bt = fork_call {
		3708	@addr = map { sprintf "%x", $_ } @addr;
		3709	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3710	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3711	or die "addr2line: $!";
		3712
		3713	my @funcs;
		3714	my @res = <$fh>;
		3715	chomp for @res;
		3716	while (@res) {
		3717	my ($func, $line) = splice @res, 0, 2, ();
		3718	push @funcs, "[$func] $line";
		3719	}
		3720
		3721	@funcs
		3722	};
		3723
		3724	LOG llevInfo, "[ABT] $msg\n";
		3725	LOG llevInfo, "[ABT] $_\n" for @bt;
		3726	--$_log_backtrace;
		3727	};
		3728	} else {
		3729	LOG llevInfo, "[ABT] $msg\n";
		3730	LOG llevInfo, "[ABT] [suppressed]\n";
		3731	}
		3732	}
		3733
		3734	# load additional modules
		3735	use cf::pod;
2507		3736
2508	END { cf::emergency_save }	3737	END { cf::emergency_save }
2509		3738
2510	1	3739	1
2511		3740

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