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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 1.373 by root, Sat Sep 15 15:58:06 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 Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.64 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
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;
		31	use YAML::Syck ();
23	use IO::AIO 2.32 ();	32	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
26		36
		37	# configure various modules to our taste
		38	#
		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
		42
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	43	$Event::Eval = 1; # no idea why this is required, but it is
28
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		44
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	45	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
33		47
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	48	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		49
		50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		51
36	our %COMMAND = ();	52	our %COMMAND = ();
37	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
38		54
39	our @EXTS = (); # list of extension package names	55	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	58	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	59	our %EXT_MAP = (); # pluggable maps
43		60
		61	our $RELOAD; # number of reloads so far
44	our @EVENT;	62	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		63
47	our $TICK = MAX_TIME * 1e-6;	64	our $CONFDIR = confdir;
		65	our $DATADIR = datadir;
		66	our $LIBDIR = "$DATADIR/ext";
		67	our $PODDIR = "$DATADIR/pod";
		68	our $MAPDIR = "$DATADIR/" . mapdir;
		69	our $LOCALDIR = localdir;
		70	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		71	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		72	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		73	our $RANDOMDIR = "$LOCALDIR/random";
		74	our $BDBDIR = "$LOCALDIR/db";
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
49	our $NEXT_TICK;	80	our $NEXT_TICK;
50	our $NOW;	81	our $NOW;
		82	our $USE_FSYNC = 1; # use fsync to write maps - default off
		83
		84	our $BDB_POLL_WATCHER;
		85	our $BDB_DEADLOCK_WATCHER;
		86	our $BDB_CHECKPOINT_WATCHER;
		87	our $BDB_TRICKLE_WATCHER;
		88	our $DB_ENV;
51		89
52	our %CFG;	90	our %CFG;
53		91
54	our $UPTIME; $UPTIME ||= time;	92	our $UPTIME; $UPTIME ||= time;
55	our $RUNTIME;	93	our $RUNTIME;
56		94
57	our %PLAYER; # all users	95	our (%PLAYER, %PLAYER_LOADING); # all users
58	our %MAP; # all maps	96	our (%MAP, %MAP_LOADING ); # all maps
59	our $LINK_MAP; # the special {link} map	97	our $LINK_MAP; # the special {link} map, which is always available
60	our $RANDOM_MAPS = cf::localdir . "/random";
61		98
62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	99	# 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;	100	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		101
		102	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		103	our $LOADAVG; # same thing, but with alpha-smoothing
		104	our $tick_start; # for load detecting purposes
64		105
65	binmode STDOUT;	106	binmode STDOUT;
66	binmode STDERR;	107	binmode STDERR;
67		108
68	# read virtual server time, if available	109	# read virtual server time, if available
69	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
70	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
71	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
72	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
73	}	114	}
74		115
75	mkdir cf::localdir;	116	mkdir $_
76	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
77	mkdir cf::localdir . "/" . cf::tmpdir;
78	mkdir cf::localdir . "/" . cf::uniquedir;
79	mkdir $RANDOM_MAPS;
80		118
81	# a special map that is always available
82	our $LINK_MAP;
83	our $EMERGENCY_POSITION;	119	our $EMERGENCY_POSITION;
		120
		121	sub cf::map::normalise;
84		122
85	#############################################################################	123	#############################################################################
86		124
87	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
88		126
…		…
95	=item $cf::RUNTIME	133	=item $cf::RUNTIME
96		134
97	The time this server has run, starts at 0 and is increased by $cf::TICK on	135	The time this server has run, starts at 0 and is increased by $cf::TICK on
98	every server tick.	136	every server tick.
99		137
100	=item $cf::LIBDIR	138	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		139	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		140	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
101		141
102	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
103	be found. It will be added to C<@INC> automatically.	143	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		144	unique-items directory, player file directory, random maps directory and
		145	database environment.
104		146
105	=item $cf::NOW	147	=item $cf::NOW
106		148
107	The time of the last (current) server tick.	149	The time of the last (current) server tick.
108		150
109	=item $cf::TICK	151	=item $cf::TICK
110		152
111	The interval between server ticks, in seconds.	153	The interval between server ticks, in seconds.
		154
		155	=item $cf::LOADAVG
		156
		157	The current CPU load on the server (alpha-smoothed), as a value between 0
		158	(none) and 1 (overloaded), indicating how much time is spent on processing
		159	objects per tick. Healthy values are < 0.5.
		160
		161	=item $cf::LOAD
		162
		163	The raw value load value from the last tick.
112		164
113	=item %cf::CFG	165	=item %cf::CFG
114		166
115	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/crossfire/config>, or
116	from wherever your confdir points to.	168	from wherever your confdir points to.
117		169
118	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	170	=item cf::wait_for_tick, cf::wait_for_tick_begin
119		171
120	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	172	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	173	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	174	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.	175
		176	=item @cf::INVOKE_RESULTS
		177
		178	This array contains the results of the last C<invoke ()> call. When
		179	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		180	that call.
124		181
125	=back	182	=back
126		183
127	=cut	184	=cut
128		185
129	BEGIN {	186	BEGIN {
130	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
131	my $msg = join "", @_;	188	my $msg = join "", @_;
132	utf8::encode $msg;
133		189
134	$msg .= "\n"	190	$msg .= "\n"
135	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
136		194
137	LOG llevError, $msg;	195	LOG llevError, $msg;
138	};	196	};
139	}	197	}
140		198
141	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
142	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
143	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
144	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
145	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	203	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		204	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
146	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	205	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
147		206
148	# we bless all objects into (empty) derived classes to force a method lookup	207	# we bless all objects into (empty) derived classes to force a method lookup
149	# within the Safe compartment.	208	# within the Safe compartment.
150	for my $pkg (qw(	209	for my $pkg (qw(
151	cf::global cf::attachable	210	cf::global cf::attachable
…		…
159	}	218	}
160		219
161	$Event::DIED = sub {	220	$Event::DIED = sub {
162	warn "error in event callback: @_";	221	warn "error in event callback: @_";
163	};	222	};
		223
		224	#############################################################################
164		225
165	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
166		227
167	=over 4	228	=over 4
168		229
…		…
187	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	248	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
188	$d	249	$d
189	} || "[unable to dump $_[0]: '$@']";	250	} || "[unable to dump $_[0]: '$@']";
190	}	251	}
191		252
192	use JSON::Syck (); # TODO# replace by JSON::PC once working
193
194	=item $ref = cf::from_json $json	253	=item $ref = cf::from_json $json
195		254
196	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
197		256
198	=cut
199
200	sub from_json($) {
201	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
202	JSON::Syck::Load $_[0]
203	}
204
205	=item $json = cf::to_json $ref	257	=item $json = cf::to_json $ref
206		258
207	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
208		260
209	=cut	261	=cut
210		262
211	sub to_json($) {	263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
212	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	264
213	JSON::Syck::Dump $_[0]	265	sub to_json ($) { $json_coder->encode ($_[0]) }
214	}	266	sub from_json ($) { $json_coder->decode ($_[0]) }
215		267
216	=item cf::lock_wait $string	268	=item cf::lock_wait $string
217		269
218	Wait until the given lock is available. See cf::lock_acquire.	270	Wait until the given lock is available. See cf::lock_acquire.
219		271
…		…
222	Wait until the given lock is available and then acquires it and returns	274	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,	275	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	276	for example when the coroutine gets canceled), the lock is automatically
225	returned.	277	returned.
226		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
227	Lock names should begin with a unique identifier (for example, cf::map::find	282	Lock names should begin with a unique identifier (for example, cf::map::find
228	uses map_find and cf::map::load uses map_load).	283	uses map_find and cf::map::load uses map_load).
229		284
		285	=item $locked = cf::lock_active $string
		286
		287	Return true if the lock is currently active, i.e. somebody has locked it.
		288
230	=cut	289	=cut
231		290
232	our %LOCK;	291	our %LOCK;
		292	our %LOCKER;#d#
233		293
234	sub lock_wait($) {	294	sub lock_wait($) {
235	my ($key) = @_;	295	my ($key) = @_;
		296
		297	if ($LOCKER{$key} == $Coro::current) {#d#
		298	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		299	return;#d#
		300	}#d#
236		301
237	# wait for lock, if any	302	# wait for lock, if any
238	while ($LOCK{$key}) {	303	while ($LOCK{$key}) {
239	push @{ $LOCK{$key} }, $Coro::current;	304	push @{ $LOCK{$key} }, $Coro::current;
240	Coro::schedule;	305	Coro::schedule;
…		…
246		311
247	# wait, to be sure we are not locked	312	# wait, to be sure we are not locked
248	lock_wait $key;	313	lock_wait $key;
249		314
250	$LOCK{$key} = [];	315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
251		317
252	Coro::guard {	318	Coro::guard {
		319	delete $LOCKER{$key};#d#
253	# wake up all waiters, to be on the safe side	320	# wake up all waiters, to be on the safe side
254	$_->ready for @{ delete $LOCK{$key} };	321	$_->ready for @{ delete $LOCK{$key} };
255	}	322	}
256	}	323	}
257		324
		325	sub lock_active($) {
		326	my ($key) = @_;
		327
		328	! ! $LOCK{$key}
		329	}
		330
258	sub freeze_mainloop {	331	sub freeze_mainloop {
259	return unless $TICK_WATCHER->is_active;	332	return unless $TICK_WATCHER->is_active;
260		333
261	my $guard = Coro::guard { $TICK_WATCHER->start };	334	my $guard = Coro::guard {
		335	$TICK_WATCHER->start;
		336	};
262	$TICK_WATCHER->stop;	337	$TICK_WATCHER->stop;
263	$guard	338	$guard
		339	}
		340
		341	=item cf::get_slot $time[, $priority[, $name]]
		342
		343	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		344	This call blocks and returns only when you have at least C<$time> seconds
		345	of cpu time till the next tick. The slot is only valid till the next cede.
		346
		347	The optional C<$name> can be used to identify the job to run. It might be
		348	used for statistical purposes and should identify the same time-class.
		349
		350	Useful for short background jobs.
		351
		352	=cut
		353
		354	our @SLOT_QUEUE;
		355	our $SLOT_QUEUE;
		356
		357	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		358	$SLOT_QUEUE = Coro::async {
		359	my $signal = new Coro::Signal;
		360
		361	while () {
		362	next_job:
		363	my $avail = cf::till_tick;
		364	if ($avail > 0.01) {
		365	for (0 .. $#SLOT_QUEUE) {
		366	if ($SLOT_QUEUE[$_][0] < $avail) {
		367	my $job = splice @SLOT_QUEUE, $_, 1, ();
		368	$job->[2]->send;
		369	Coro::cede;
		370	goto next_job;
		371	}
		372	}
		373	}
		374
		375	if (@SLOT_QUEUE) {
		376	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		377	push @cf::WAIT_FOR_TICK, $signal;
		378	$signal->wait;
		379	} else {
		380	Coro::schedule;
		381	}
		382	}
		383	};
		384
		385	sub get_slot($;$$) {
		386	my ($time, $pri, $name) = @_;
		387
		388	$time = $TICK * .6 if $time > $TICK * .6;
		389	my $sig = new Coro::Signal;
		390
		391	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		392	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		393	$SLOT_QUEUE->ready;
		394	$sig->wait;
264	}	395	}
265		396
266	=item cf::async { BLOCK }	397	=item cf::async { BLOCK }
267		398
268	Currently the same as Coro::async_pool, meaning you cannot use	399	Currently the same as Coro::async_pool, meaning you cannot use
…		…
273		404
274	BEGIN { *async = \&Coro::async_pool }	405	BEGIN { *async = \&Coro::async_pool }
275		406
276	=item cf::sync_job { BLOCK }	407	=item cf::sync_job { BLOCK }
277		408
278	The design of crossfire+ requires that the main coro ($Coro::main) is	409	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
279	always able to handle events or runnable, as crossfire+ is only partly	410	is always able to handle events or runnable, as Crossfire TRT is only
280	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	411	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		412	acceptable.
281		413
282	If it must be done, put the blocking parts into C<sync_job>. This will run	414	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	415	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	416	server will be frozen during this time, so the block should either finish
285	fast or be very important.	417	fast or be very important.
…		…
288		420
289	sub sync_job(&) {	421	sub sync_job(&) {
290	my ($job) = @_;	422	my ($job) = @_;
291		423
292	if ($Coro::current == $Coro::main) {	424	if ($Coro::current == $Coro::main) {
		425	my $time = Event::time;
		426
293	# this is the main coro, too bad, we have to block	427	# this is the main coro, too bad, we have to block
294	# till the operation succeeds, freezing the server :/	428	# till the operation succeeds, freezing the server :/
295		429
296	# TODO: use suspend/resume instead	430	# TODO: use suspend/resume instead
297	# (but this is cancel-safe)	431	# (but this is cancel-safe)
…		…
308		442
309	while ($busy) {	443	while ($busy) {
310	Coro::cede or Event::one_event;	444	Coro::cede or Event::one_event;
311	}	445	}
312		446
		447	$time = Event::time - $time;
		448
		449	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		450	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		451
		452	$tick_start += $time; # do not account sync jobs to server load
		453
313	wantarray ? @res : $res[0]	454	wantarray ? @res : $res[0]
314	} else {	455	} else {
315	# we are in another coroutine, how wonderful, everything just works	456	# we are in another coroutine, how wonderful, everything just works
316		457
317	$job->()	458	$job->()
…		…
336	$EXT_CORO{$coro+0} = $coro;	477	$EXT_CORO{$coro+0} = $coro;
337		478
338	$coro	479	$coro
339	}	480	}
340		481
341	sub write_runtime {	482	=item fork_call { }, $args
342	my $runtime = cf::localdir . "/runtime";
343		483
344	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	484	Executes the given code block with the given arguments in a seperate
345	or return;	485	process, returning the results. Everything must be serialisable with
		486	Coro::Storable. May, of course, block. Note that the executed sub may
		487	never block itself or use any form of Event handling.
346		488
347	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	489	=cut
348	(aio_write $fh, 0, (length $value), $value, 0) <= 0
349	and return;
350		490
351	aio_fsync $fh	491	sub fork_call(&@) {
352	and return;	492	my ($cb, @args) = @_;
353		493
354	close $fh	494	# we seemingly have to make a local copy of the whole thing,
355	or return;	495	# otherwise perl prematurely frees the stuff :/
		496	# TODO: investigate and fix (likely this will be rather laborious)
356		497
357	aio_rename "$runtime~", $runtime	498	my @res = Coro::Util::fork_eval {
358	and return;	499	reset_signals;
		500	&$cb
		501	}, @args;
359		502
		503	wantarray ? @res : $res[-1]
		504	}
		505
		506	=item $value = cf::db_get $family => $key
		507
		508	Returns a single value from the environment database.
		509
		510	=item cf::db_put $family => $key => $value
		511
		512	Stores the given C<$value> in the family. It can currently store binary
		513	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		514
		515	=item $db = cf::db_table "name"
		516
		517	Create and/or open a new database table. The string must not be "db" and must be unique
		518	within each server.
		519
		520	=cut
		521
		522	sub db_table($) {
		523	my ($name) = @_;
		524	my $db = BDB::db_create $DB_ENV;
		525
		526	eval {
		527	$db->set_flags (BDB::CHKSUM);
		528
		529	utf8::encode $name;
		530	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		531	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		532	cf::cleanup "db_open(db): $!" if $!;
		533	};
		534	cf::cleanup "db_open(db): $@" if $@;
		535
		536	$db
		537	}
		538
		539	our $DB;
		540
		541	sub db_init {
		542	cf::sync_job {
		543	$DB ||= db_table "db";
		544	};
		545	}
		546
		547	sub db_get($$) {
		548	my $key = "$_[0]/$_[1]";
		549
		550	cf::sync_job {
		551	BDB::db_get $DB, undef, $key, my $data;
		552
		553	$! ? ()
		554	: $data
360	1	555	}
		556	}
		557
		558	sub db_put($$$) {
		559	BDB::dbreq_pri 4;
		560	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		561	}
		562
		563	=item cf::cache $id => [$paths...], $processversion => $process
		564
		565	Generic caching function that returns the value of the resource $id,
		566	caching and regenerating as required.
		567
		568	This function can block.
		569
		570	=cut
		571
		572	sub cache {
		573	my ($id, $src, $processversion, $process) = @_;
		574
		575	my $meta =
		576	join "\x00",
		577	$processversion,
		578	map {
		579	aio_stat $_
		580	and Carp::croak "$_: $!";
		581
		582	($_, (stat _)[7,9])
		583	} @$src;
		584
		585	my $dbmeta = db_get cache => "$id/meta";
		586	if ($dbmeta ne $meta) {
		587	# changed, we may need to process
		588
		589	my @data;
		590	my $md5;
		591
		592	for (0 .. $#$src) {
		593	0 <= aio_load $src->[$_], $data[$_]
		594	or Carp::croak "$src->[$_]: $!";
		595	}
		596
		597	# if processing is expensive, check
		598	# checksum first
		599	if (1) {
		600	$md5 =
		601	join "\x00",
		602	$processversion,
		603	map {
		604	cf::cede_to_tick;
		605	($src->[$_], Digest::MD5::md5_hex $data[$_])
		606	} 0.. $#$src;
		607
		608
		609	my $dbmd5 = db_get cache => "$id/md5";
		610	if ($dbmd5 eq $md5) {
		611	db_put cache => "$id/meta", $meta;
		612
		613	return db_get cache => "$id/data";
		614	}
		615	}
		616
		617	my $t1 = Time::HiRes::time;
		618	my $data = $process->(\@data);
		619	my $t2 = Time::HiRes::time;
		620
		621	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		622
		623	db_put cache => "$id/data", $data;
		624	db_put cache => "$id/md5" , $md5;
		625	db_put cache => "$id/meta", $meta;
		626
		627	return $data;
		628	}
		629
		630	db_get cache => "$id/data"
		631	}
		632
		633	=item cf::datalog type => key => value, ...
		634
		635	Log a datalog packet of the given type with the given key-value pairs.
		636
		637	=cut
		638
		639	sub datalog($@) {
		640	my ($type, %kv) = @_;
		641	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
361	}	642	}
362		643
363	=back	644	=back
364		645
365	=cut	646	=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		647
522	#############################################################################	648	#############################################################################
523		649
524	=head2 ATTACHABLE OBJECTS	650	=head2 ATTACHABLE OBJECTS
525		651
…		…
527	attach callbacks/event handlers (a collection of which is called an "attachment")	653	attach callbacks/event handlers (a collection of which is called an "attachment")
528	to it. All such attachable objects support the following methods.	654	to it. All such attachable objects support the following methods.
529		655
530	In the following description, CLASS can be any of C<global>, C<object>	656	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	657	C<player>, C<client> or C<map> (i.e. the attachable objects in
532	crossfire+).	658	Crossfire TRT).
533		659
534	=over 4	660	=over 4
535		661
536	=item $attachable->attach ($attachment, key => $value...)	662	=item $attachable->attach ($attachment, key => $value...)
537		663
…		…
651	our @CB_TYPE = (); # registry for type (cf-object class) based events	777	our @CB_TYPE = (); # registry for type (cf-object class) based events
652	our @CB_MAP = ();	778	our @CB_MAP = ();
653		779
654	my %attachment;	780	my %attachment;
655		781
		782	sub cf::attachable::thawer_merge {
		783	# simply override everything except _meta
		784	local $_[0]{_meta};
		785	%{$_[0]} = %{$_[1]};
		786	}
		787
656	sub _attach_cb($$$$) {	788	sub _attach_cb($$$$) {
657	my ($registry, $event, $prio, $cb) = @_;	789	my ($registry, $event, $prio, $cb) = @_;
658		790
659	use sort 'stable';	791	use sort 'stable';
660		792
…		…
694	$registry = $CB_TYPE[$object_type] ||= [];	826	$registry = $CB_TYPE[$object_type] ||= [];
695		827
696	} elsif ($type eq "subtype") {	828	} elsif ($type eq "subtype") {
697	defined $object_type or Carp::croak "subtype specified without type";	829	defined $object_type or Carp::croak "subtype specified without type";
698	my $object_subtype = shift @arg;	830	my $object_subtype = shift @arg;
699	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	831	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
700		832
701	} elsif ($type eq "package") {	833	} elsif ($type eq "package") {
702	my $pkg = shift @arg;	834	my $pkg = shift @arg;
703		835
704	while (my ($name, $id) = each %cb_id) {	836	while (my ($name, $id) = each %cb_id) {
…		…
733	_attach $registry, $klass, @attach;	865	_attach $registry, $klass, @attach;
734	}	866	}
735		867
736	$obj->{$name} = \%arg;	868	$obj->{$name} = \%arg;
737	} else {	869	} else {
738	warn "object uses attachment '$name' that is not available, postponing.\n";	870	warn "object uses attachment '$name' which is not available, postponing.\n";
739	}	871	}
740		872
741	$obj->{_attachment}{$name} = undef;	873	$obj->{_attachment}{$name} = undef;
742	}	874	}
743		875
…		…
745	if (ref $_[0]) {	877	if (ref $_[0]) {
746	_object_attach @_;	878	_object_attach @_;
747	} else {	879	} else {
748	_attach shift->_attach_registry, @_;	880	_attach shift->_attach_registry, @_;
749	}	881	}
		882	_recalc_want;
750	};	883	};
751		884
752	# all those should be optimised	885	# all those should be optimised
753	sub cf::attachable::detach {	886	sub cf::attachable::detach {
754	my ($obj, $name) = @_;	887	my ($obj, $name) = @_;
…		…
757	delete $obj->{_attachment}{$name};	890	delete $obj->{_attachment}{$name};
758	reattach ($obj);	891	reattach ($obj);
759	} else {	892	} else {
760	Carp::croak "cannot, currently, detach class attachments";	893	Carp::croak "cannot, currently, detach class attachments";
761	}	894	}
		895	_recalc_want;
762	};	896	};
763		897
764	sub cf::attachable::attached {	898	sub cf::attachable::attached {
765	my ($obj, $name) = @_;	899	my ($obj, $name) = @_;
766		900
…		…
781	";	915	";
782	die if $@;	916	die if $@;
783	}	917	}
784		918
785	our $override;	919	our $override;
786	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	920	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
787		921
788	sub override {	922	sub override {
789	$override = 1;	923	$override = 1;
790	@invoke_results = ();	924	@INVOKE_RESULTS = (@_);
791	}	925	}
792		926
793	sub do_invoke {	927	sub do_invoke {
794	my $event = shift;	928	my $event = shift;
795	my $callbacks = shift;	929	my $callbacks = shift;
796		930
797	@invoke_results = ();	931	@INVOKE_RESULTS = ();
798		932
799	local $override;	933	local $override;
800		934
801	for (@$callbacks) {	935	for (@$callbacks) {
802	eval { &{$_->[1]} };	936	eval { &{$_->[1]} };
…		…
819		953
820	Generate an object-specific event with the given arguments.	954	Generate an object-specific event with the given arguments.
821		955
822	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	956	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	957	removed in future versions), and there is no public API to access override
824	results (if you must, access C<@cf::invoke_results> directly).	958	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
825		959
826	=back	960	=back
827		961
828	=cut	962	=cut
829		963
830	#############################################################################	964	#############################################################################
831	# object support	965	# object support
		966	#
		967
		968	sub _can_merge {
		969	my ($ob1, $ob2) = @_;
		970
		971	local $Storable::canonical = 1;
		972	my $fob1 = Storable::freeze $ob1;
		973	my $fob2 = Storable::freeze $ob2;
		974
		975	$fob1 eq $fob2
		976	}
832		977
833	sub reattach {	978	sub reattach {
834	# basically do the same as instantiate, without calling instantiate	979	# basically do the same as instantiate, without calling instantiate
835	my ($obj) = @_;	980	my ($obj) = @_;
		981
		982	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
836		983
837	my $registry = $obj->registry;	984	my $registry = $obj->registry;
838		985
839	@$registry = ();	986	@$registry = ();
840		987
…		…
881	sub object_freezer_save {	1028	sub object_freezer_save {
882	my ($filename, $rdata, $objs) = @_;	1029	my ($filename, $rdata, $objs) = @_;
883		1030
884	sync_job {	1031	sync_job {
885	if (length $$rdata) {	1032	if (length $$rdata) {
		1033	utf8::decode (my $decname = $filename);
886	warn sprintf "saving %s (%d,%d)\n",	1034	warn sprintf "saving %s (%d,%d)\n",
887	$filename, length $$rdata, scalar @$objs;	1035	$decname, length $$rdata, scalar @$objs;
888		1036
889	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1037	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
890	chmod SAVE_MODE, $fh;	1038	chmod SAVE_MODE, $fh;
891	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1039	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
892	aio_fsync $fh;	1040	aio_fsync $fh if $cf::USE_FSYNC;
893	close $fh;	1041	close $fh;
894		1042
895	if (@$objs) {	1043	if (@$objs) {
896	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1044	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
897	chmod SAVE_MODE, $fh;	1045	chmod SAVE_MODE, $fh;
898	my $data = Storable::nfreeze { version => 1, objs => $objs };	1046	my $data = Storable::nfreeze { version => 1, objs => $objs };
899	aio_write $fh, 0, (length $data), $data, 0;	1047	aio_write $fh, 0, (length $data), $data, 0;
900	aio_fsync $fh;	1048	aio_fsync $fh if $cf::USE_FSYNC;
901	close $fh;	1049	close $fh;
902	aio_rename "$filename.pst~", "$filename.pst";	1050	aio_rename "$filename.pst~", "$filename.pst";
903	}	1051	}
904	} else {	1052	} else {
905	aio_unlink "$filename.pst";	1053	aio_unlink "$filename.pst";
…		…
911	}	1059	}
912	} else {	1060	} else {
913	aio_unlink $filename;	1061	aio_unlink $filename;
914	aio_unlink "$filename.pst";	1062	aio_unlink "$filename.pst";
915	}	1063	}
916	}	1064	};
917	}	1065	}
918		1066
919	sub object_freezer_as_string {	1067	sub object_freezer_as_string {
920	my ($rdata, $objs) = @_;	1068	my ($rdata, $objs) = @_;
921		1069
…		…
933	or return;	1081	or return;
934		1082
935	unless (aio_stat "$filename.pst") {	1083	unless (aio_stat "$filename.pst") {
936	(aio_load "$filename.pst", $av) >= 0	1084	(aio_load "$filename.pst", $av) >= 0
937	or return;	1085	or return;
		1086
938	$av = eval { (Storable::thaw $av)->{objs} };	1087	$av = eval { (Storable::thaw $av)->{objs} };
939	}	1088	}
940		1089
		1090	utf8::decode (my $decname = $filename);
941	warn sprintf "loading %s (%d)\n",	1091	warn sprintf "loading %s (%d,%d)\n",
942	$filename, length $data, scalar @{$av || []};#d#	1092	$decname, length $data, scalar @{$av || []};
		1093
943	return ($data, $av);	1094	($data, $av)
944	}	1095	}
		1096
		1097	=head2 COMMAND CALLBACKS
		1098
		1099	=over 4
		1100
		1101	=cut
945		1102
946	#############################################################################	1103	#############################################################################
947	# command handling &c	1104	# command handling &c
948		1105
949	=item cf::register_command $name => \&callback($ob,$args);	1106	=item cf::register_command $name => \&callback($ob,$args);
…		…
962	push @{ $COMMAND{$name} }, [$caller, $cb];	1119	push @{ $COMMAND{$name} }, [$caller, $cb];
963	}	1120	}
964		1121
965	=item cf::register_extcmd $name => \&callback($pl,$packet);	1122	=item cf::register_extcmd $name => \&callback($pl,$packet);
966		1123
967	Register a callbackf ro execution when the client sends an extcmd packet.	1124	Register a callback for execution when the client sends an (synchronous)
		1125	extcmd packet. Ext commands will be processed in the order they are
		1126	received by the server, like other user commands. The first argument is
		1127	the logged-in player. Ext commands can only be processed after a player
		1128	has logged in successfully.
968		1129
969	If the callback returns something, it is sent back as if reply was being	1130	If the callback returns something, it is sent back as if reply was being
970	called.	1131	called.
971		1132
		1133	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1134
		1135	Register a callback for execution when the client sends an (asynchronous)
		1136	exticmd packet. Exti commands are processed by the server as soon as they
		1137	are received, i.e. out of order w.r.t. other commands. The first argument
		1138	is a client socket. Exti commands can be received anytime, even before
		1139	log-in.
		1140
		1141	If the callback returns something, it is sent back as if reply was being
		1142	called.
		1143
972	=cut	1144	=cut
973		1145
974	sub register_extcmd {	1146	sub register_extcmd {
975	my ($name, $cb) = @_;	1147	my ($name, $cb) = @_;
976		1148
977	$EXTCMD{$name} = $cb;	1149	$EXTCMD{$name} = $cb;
		1150	}
		1151
		1152	sub register_exticmd {
		1153	my ($name, $cb) = @_;
		1154
		1155	$EXTICMD{$name} = $cb;
978	}	1156	}
979		1157
980	cf::player->attach (	1158	cf::player->attach (
981	on_command => sub {	1159	on_command => sub {
982	my ($pl, $name, $params) = @_;	1160	my ($pl, $name, $params) = @_;
…		…
991	cf::override;	1169	cf::override;
992	},	1170	},
993	on_extcmd => sub {	1171	on_extcmd => sub {
994	my ($pl, $buf) = @_;	1172	my ($pl, $buf) = @_;
995		1173
996	my $msg = eval { from_json $buf };	1174	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
997		1175
998	if (ref $msg) {	1176	if (ref $msg) {
		1177	my ($type, $reply, @payload) =
		1178	"ARRAY" eq ref $msg
		1179	? @$msg
		1180	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1181
		1182	my @reply;
		1183
999	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1184	if (my $cb = $EXTCMD{$type}) {
1000	if (my %reply = $cb->($pl, $msg)) {	1185	@reply = $cb->($pl, @payload);
1001	$pl->ext_reply ($msg->{msgid}, %reply);
1002	}
1003	}	1186	}
		1187
		1188	$pl->ext_reply ($reply, @reply)
		1189	if $reply;
		1190
1004	} else {	1191	} else {
1005	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1192	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
1006	}	1193	}
1007		1194
1008	cf::override;	1195	cf::override;
1009	},	1196	},
1010	);	1197	);
1011		1198
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 {	1199	sub load_extensions {
		1200	cf::sync_job {
		1201	my %todo;
		1202
1040	for my $ext (<$LIBDIR/*.ext>) {	1203	for my $path (<$LIBDIR/*.ext>) {
1041	next unless -r $ext;	1204	next unless -r $path;
1042	eval {	1205
1043	load_extension $ext;	1206	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1207	my $base = $1;
		1208	my $pkg = $1;
		1209	$pkg =~ s/[^[:word:]]/_/g;
		1210	$pkg = "ext::$pkg";
		1211
		1212	open my $fh, "<:utf8", $path
		1213	or die "$path: $!";
		1214
		1215	my $source = do { local $/; <$fh> };
		1216
		1217	my %ext = (
		1218	path => $path,
		1219	base => $base,
		1220	pkg => $pkg,
		1221	);
		1222
		1223	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1224	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1225
		1226	$ext{source} =
		1227	"package $pkg; use strict; use utf8;\n"
		1228	. "#line 1 \"$path\"\n{\n"
		1229	. $source
		1230	. "\n};\n1";
		1231
		1232	$todo{$base} = \%ext;
		1233	}
		1234
		1235	my %done;
		1236	while (%todo) {
		1237	my $progress;
		1238
		1239	while (my ($k, $v) = each %todo) {
		1240	for (split /,\s*/, $v->{meta}{depends}) {
		1241	goto skip
		1242	unless exists $done{$_};
		1243	}
		1244
		1245	warn "... loading '$k' into '$v->{pkg}'\n";
		1246
		1247	unless (eval $v->{source}) {
		1248	my $msg = $@ ? "$v->{path}: $@\n"
		1249	: "$v->{base}: extension inactive.\n";
		1250
		1251	if (exists $v->{meta}{mandatory}) {
		1252	warn $msg;
		1253	warn "mandatory extension failed to load, exiting.\n";
		1254	exit 1;
		1255	}
		1256
		1257	warn $msg;
		1258	}
		1259
		1260	$done{$k} = delete $todo{$k};
		1261	push @EXTS, $v->{pkg};
		1262	$progress = 1;
1044	1	1263	}
1045	} or warn "$ext not loaded: $@";	1264
		1265	skip:
		1266	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1267	unless $progress;
		1268	}
1046	}	1269	};
1047	}	1270	}
1048		1271
1049	#############################################################################	1272	#############################################################################
1050	# load/save/clean perl data associated with a map
1051		1273
1052	*cf::mapsupport::on_clean = sub {	1274	=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		1275
1065	=head2 CORE EXTENSIONS	1276	=head2 CORE EXTENSIONS
1066		1277
1067	Functions and methods that extend core crossfire objects.	1278	Functions and methods that extend core crossfire objects.
1068		1279
…		…
1074		1285
1075	=head3 cf::player	1286	=head3 cf::player
1076		1287
1077	=over 4	1288	=over 4
1078		1289
		1290	=item cf::player::num_playing
		1291
		1292	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1293
		1294	=cut
		1295
		1296	sub num_playing {
		1297	scalar grep
		1298	$_->ob->map
		1299	&& !$_->hidden
		1300	&& !$_->ob->flag (cf::FLAG_WIZ),
		1301	cf::player::list
		1302	}
		1303
1079	=item cf::player::find $login	1304	=item cf::player::find $login
1080		1305
1081	Returns the given player object, loading it if necessary (might block).	1306	Returns the given player object, loading it if necessary (might block).
1082		1307
1083	=cut	1308	=cut
1084		1309
1085	sub playerdir($) {	1310	sub playerdir($) {
1086	cf::localdir	1311	"$PLAYERDIR/"
1087	. "/"
1088	. cf::playerdir
1089	. "/"
1090	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1312	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1091	}	1313	}
1092		1314
1093	sub path($) {	1315	sub path($) {
1094	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1316	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1095		1317
1096	(playerdir $login) . "/$login.pl"	1318	(playerdir $login) . "/playerdata"
1097	}	1319	}
1098		1320
1099	sub find_active($) {	1321	sub find_active($) {
1100	$cf::PLAYER{$_[0]}	1322	$cf::PLAYER{$_[0]}
1101	and $cf::PLAYER{$_[0]}->active	1323	and $cf::PLAYER{$_[0]}->active
…		…
1104		1326
1105	sub exists($) {	1327	sub exists($) {
1106	my ($login) = @_;	1328	my ($login) = @_;
1107		1329
1108	$cf::PLAYER{$login}	1330	$cf::PLAYER{$login}
1109	or cf::sync_job { !aio_stat $login }	1331	or cf::sync_job { !aio_stat path $login }
1110	}	1332	}
1111		1333
1112	sub find($) {	1334	sub find($) {
1113	return $cf::PLAYER{$_[0]} || do {	1335	return $cf::PLAYER{$_[0]} || do {
1114	my $login = $_[0];	1336	my $login = $_[0];
1115		1337
1116	my $guard = cf::lock_acquire "user_find:$login";	1338	my $guard = cf::lock_acquire "user_find:$login";
1117		1339
1118	$cf::PLAYER{$_[0]} || do {	1340	$cf::PLAYER{$_[0]} || do {
1119	my $pl = load_pl path $login	1341	# rename old playerfiles to new ones
		1342	#TODO: remove when no longer required
		1343	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1344	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1345	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1346	aio_unlink +(playerdir $login) . "/$login.pl";
		1347
		1348	my $f = new_from_file cf::object::thawer path $login
1120	or return;	1349	or return;
		1350
		1351	my $pl = cf::player::load_pl $f
		1352	or return;
		1353	local $cf::PLAYER_LOADING{$login} = $pl;
		1354	$f->resolve_delayed_derefs;
1121	$cf::PLAYER{$login} = $pl	1355	$cf::PLAYER{$login} = $pl
1122	}	1356	}
1123	}	1357	}
1124	}	1358	}
1125		1359
…		…
1135		1369
1136	aio_mkdir playerdir $pl, 0770;	1370	aio_mkdir playerdir $pl, 0770;
1137	$pl->{last_save} = $cf::RUNTIME;	1371	$pl->{last_save} = $cf::RUNTIME;
1138		1372
1139	$pl->save_pl ($path);	1373	$pl->save_pl ($path);
1140	Coro::cede;	1374	cf::cede_to_tick;
1141	}	1375	}
1142		1376
1143	sub new($) {	1377	sub new($) {
1144	my ($login) = @_;	1378	my ($login) = @_;
1145		1379
…		…
1151	$cf::PLAYER{$login} = $self;	1385	$cf::PLAYER{$login} = $self;
1152		1386
1153	$self	1387	$self
1154	}	1388	}
1155		1389
		1390	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1391
		1392	=cut
		1393
		1394	sub send_msg {
		1395	my $ns = shift->ns
		1396	or return;
		1397	$ns->send_msg (@_);
		1398	}
		1399
1156	=item $pl->quit_character	1400	=item $pl->quit_character
1157		1401
1158	Nukes the player without looking back. If logged in, the connection will	1402	Nukes the player without looking back. If logged in, the connection will
1159	be destroyed. May block for a long time.	1403	be destroyed. May block for a long time.
1160		1404
1161	=cut	1405	=cut
1162		1406
1163	sub quit_character {	1407	sub quit_character {
1164	my ($pl) = @_;	1408	my ($pl) = @_;
		1409
		1410	my $name = $pl->ob->name;
1165		1411
1166	$pl->{deny_save} = 1;	1412	$pl->{deny_save} = 1;
1167	$pl->password ("*"); # this should lock out the player until we nuked the dir	1413	$pl->password ("*"); # this should lock out the player until we nuked the dir
1168		1414
1169	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1415	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1174	my $path = playerdir $pl;	1420	my $path = playerdir $pl;
1175	my $temp = "$path~$cf::RUNTIME~deleting~";	1421	my $temp = "$path~$cf::RUNTIME~deleting~";
1176	aio_rename $path, $temp;	1422	aio_rename $path, $temp;
1177	delete $cf::PLAYER{$pl->ob->name};	1423	delete $cf::PLAYER{$pl->ob->name};
1178	$pl->destroy;	1424	$pl->destroy;
		1425
		1426	my $prefix = qr<^~\Q$name\E/>;
		1427
		1428	# nuke player maps
		1429	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1430
1179	IO::AIO::aio_rmtree $temp;	1431	IO::AIO::aio_rmtree $temp;
		1432	}
		1433
		1434	=item $pl->kick
		1435
		1436	Kicks a player out of the game. This destroys the connection.
		1437
		1438	=cut
		1439
		1440	sub kick {
		1441	my ($pl, $kicker) = @_;
		1442
		1443	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1444	$pl->killer ("kicked");
		1445	$pl->ns->destroy;
1180	}	1446	}
1181		1447
1182	=item cf::player::list_logins	1448	=item cf::player::list_logins
1183		1449
1184	Returns am arrayref of all valid playernames in the system, can take a	1450	Returns am arrayref of all valid playernames in the system, can take a
1185	while and may block, so not sync_job-capable, ever.	1451	while and may block, so not sync_job-capable, ever.
1186		1452
1187	=cut	1453	=cut
1188		1454
1189	sub list_logins {	1455	sub list_logins {
1190	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1456	my $dirs = aio_readdir $PLAYERDIR
1191	or return [];	1457	or return [];
1192		1458
1193	my @logins;	1459	my @logins;
1194		1460
1195	for my $login (@$dirs) {	1461	for my $login (@$dirs) {
		1462	my $path = path $login;
		1463
		1464	# a .pst is a dead give-away for a valid player
		1465	unless (-e "$path.pst") {
1196	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1466	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1197	aio_read $fh, 0, 512, my $buf, 0 or next;	1467	aio_read $fh, 0, 512, my $buf, 0 or next;
1198	$buf !~ /^password -------------$/m or next; # official not-valid tag	1468	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1469	}
1199		1470
1200	utf8::decode $login;	1471	utf8::decode $login;
1201	push @logins, $login;	1472	push @logins, $login;
1202	}	1473	}
1203		1474
1204	\@logins	1475	\@logins
1205	}	1476	}
1206		1477
1207	=item $player->maps	1478	=item $player->maps
1208		1479
1209	Returns an arrayref of cf::path's of all maps that are private for this	1480	Returns an arrayref of map paths that are private for this
1210	player. May block.	1481	player. May block.
1211		1482
1212	=cut	1483	=cut
1213		1484
1214	sub maps($) {	1485	sub maps($) {
1215	my ($pl) = @_;	1486	my ($pl) = @_;
		1487
		1488	$pl = ref $pl ? $pl->ob->name : $pl;
1216		1489
1217	my $files = aio_readdir playerdir $pl	1490	my $files = aio_readdir playerdir $pl
1218	or return;	1491	or return;
1219		1492
1220	my @paths;	1493	my @paths;
…		…
1222	for (@$files) {	1495	for (@$files) {
1223	utf8::decode $_;	1496	utf8::decode $_;
1224	next if /\.(?:pl|pst)$/;	1497	next if /\.(?:pl|pst)$/;
1225	next unless /^$PATH_SEP/o;	1498	next unless /^$PATH_SEP/o;
1226		1499
1227	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1500	push @paths, cf::map::normalise "~$pl/$_";
1228	}	1501	}
1229		1502
1230	\@paths	1503	\@paths
1231	}	1504	}
1232		1505
		1506	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1507
		1508	Expand crossfire pod fragments into protocol xml.
		1509
		1510	=cut
		1511
		1512	sub expand_cfpod {
		1513	((my $self), (local $_)) = @_;
		1514
		1515	# escape & and <
		1516	s/&/&amp;/g;
		1517	s/(?<![BIUGHT])</&lt;/g;
		1518
		1519	# this is buggy, it needs to properly take care of nested <'s
		1520
		1521	1 while
		1522	# replace B<>, I<>, U<> etc.
		1523	s/B<([^\>]*)>/<b>$1<\/b>/
		1524	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1525	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1526	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1527	# replace G<male|female> tags
		1528	|| s{G<([^>|]*)\|([^>]*)>}{
		1529	$self->gender ? $2 : $1
		1530	}ge
		1531	# replace H<hint text>
		1532	|| s{H<([^\>]*)>}
		1533	{
		1534	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1535	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1536	"")
		1537	[$self->{hintmode}]
		1538	}ge;
		1539
		1540	# create single paragraphs (very hackish)
		1541	s/(?<=\S)\n(?=\w)/ /g;
		1542
		1543	# compress some whitespace
		1544	s/\s+\n/\n/g; # ws line-ends
		1545	s/\n\n+/\n/g; # double lines
		1546	s/^\n+//; # beginning lines
		1547	s/\n+$//; # ending lines
		1548
		1549	$_
		1550	}
		1551
		1552	sub hintmode {
		1553	$_[0]{hintmode} = $_[1] if @_ > 1;
		1554	$_[0]{hintmode}
		1555	}
		1556
1233	=item $player->ext_reply ($msgid, $msgtype, %msg)	1557	=item $player->ext_reply ($msgid, @msg)
1234		1558
1235	Sends an ext reply to the player.	1559	Sends an ext reply to the player.
1236		1560
1237	=cut	1561	=cut
1238		1562
1239	sub ext_reply($$$%) {	1563	sub ext_reply($$@) {
1240	my ($self, $id, %msg) = @_;	1564	my ($self, $id, @msg) = @_;
1241		1565
1242	$msg{msgid} = $id;	1566	$self->ns->ext_reply ($id, @msg)
1243
1244	$self->send ("ext " . cf::to_json \%msg);
1245	}	1567	}
1246		1568
1247	package cf;	1569	=item $player->ext_msg ($type, @msg)
		1570
		1571	Sends an ext event to the client.
		1572
		1573	=cut
		1574
		1575	sub ext_msg($$@) {
		1576	my ($self, $type, @msg) = @_;
		1577
		1578	$self->ns->ext_msg ($type, @msg);
		1579	}
		1580
		1581	=head3 cf::region
		1582
		1583	=over 4
		1584
		1585	=cut
		1586
		1587	package cf::region;
		1588
		1589	=item cf::region::find_by_path $path
		1590
		1591	Tries to decuce the likely region for a map knowing only its path.
		1592
		1593	=cut
		1594
		1595	sub find_by_path($) {
		1596	my ($path) = @_;
		1597
		1598	my ($match, $specificity);
		1599
		1600	for my $region (list) {
		1601	if ($region->{match} && $path =~ $region->{match}) {
		1602	($match, $specificity) = ($region, $region->specificity)
		1603	if $region->specificity > $specificity;
		1604	}
		1605	}
		1606
		1607	$match
		1608	}
1248		1609
1249	=back	1610	=back
1250
1251		1611
1252	=head3 cf::map	1612	=head3 cf::map
1253		1613
1254	=over 4	1614	=over 4
1255		1615
…		…
1258	package cf::map;	1618	package cf::map;
1259		1619
1260	use Fcntl;	1620	use Fcntl;
1261	use Coro::AIO;	1621	use Coro::AIO;
1262		1622
		1623	use overload
		1624	'""' => \&as_string,
		1625	fallback => 1;
		1626
1263	our $MAX_RESET = 3600;	1627	our $MAX_RESET = 3600;
1264	our $DEFAULT_RESET = 3000;	1628	our $DEFAULT_RESET = 3000;
1265		1629
1266	sub generate_random_map {	1630	sub generate_random_map {
1267	my ($path, $rmp) = @_;	1631	my ($self, $rmp) = @_;
1268
1269	# mit "rum" bekleckern, nicht	1632	# mit "rum" bekleckern, nicht
1270	cf::map::_create_random_map	1633	$self->_create_random_map (
1271	$path,
1272	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1634	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1273	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1635	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1274	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1636	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1275	$rmp->{exit_on_final_map},	1637	$rmp->{exit_on_final_map},
1276	$rmp->{xsize}, $rmp->{ysize},	1638	$rmp->{xsize}, $rmp->{ysize},
1277	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1639	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1278	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1640	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1279	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1641	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1280	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1642	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1281	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1643	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1282	(cf::region::find $rmp->{region})	1644	(cf::region::find $rmp->{region}), $rmp->{custom}
		1645	)
		1646	}
		1647
		1648	=item cf::map->register ($regex, $prio)
		1649
		1650	Register a handler for the map path matching the given regex at the
		1651	givne priority (higher is better, built-in handlers have priority 0, the
		1652	default).
		1653
		1654	=cut
		1655
		1656	sub register {
		1657	my (undef, $regex, $prio) = @_;
		1658	my $pkg = caller;
		1659
		1660	no strict;
		1661	push @{"$pkg\::ISA"}, __PACKAGE__;
		1662
		1663	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1664	}
		1665
		1666	# also paths starting with '/'
		1667	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1668
		1669	sub thawer_merge {
		1670	my ($self, $merge) = @_;
		1671
		1672	# we have to keep some variables in memory intact
		1673	local $self->{path};
		1674	local $self->{load_path};
		1675
		1676	$self->SUPER::thawer_merge ($merge);
		1677	}
		1678
		1679	sub normalise {
		1680	my ($path, $base) = @_;
		1681
		1682	$path = "$path"; # make sure its a string
		1683
		1684	$path =~ s/\.map$//;
		1685
		1686	# map plan:
		1687	#
		1688	# /! non-realised random map exit (special hack!)
		1689	# {... are special paths that are not being touched
		1690	# ?xxx/... are special absolute paths
		1691	# ?random/... random maps
		1692	# /... normal maps
		1693	# ~user/... per-player map of a specific user
		1694
		1695	$path =~ s/$PATH_SEP/\//go;
		1696
		1697	# treat it as relative path if it starts with
		1698	# something that looks reasonable
		1699	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1700	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1701
		1702	$base =~ s{[^/]+/?$}{};
		1703	$path = "$base/$path";
		1704	}
		1705
		1706	for ($path) {
		1707	redo if s{//}{/};
		1708	redo if s{/\.?/}{/};
		1709	redo if s{/[^/]+/\.\./}{/};
		1710	}
		1711
		1712	$path
		1713	}
		1714
		1715	sub new_from_path {
		1716	my (undef, $path, $base) = @_;
		1717
		1718	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1719
		1720	$path = normalise $path, $base;
		1721
		1722	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1723	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1724	my $self = bless cf::map::new, $pkg;
		1725	$self->{path} = $path; $self->path ($path);
		1726	$self->init; # pass $1 etc.
		1727	return $self;
		1728	}
		1729	}
		1730
		1731	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1732	()
		1733	}
		1734
		1735	sub init {
		1736	my ($self) = @_;
		1737
		1738	$self
		1739	}
		1740
		1741	sub as_string {
		1742	my ($self) = @_;
		1743
		1744	"$self->{path}"
		1745	}
		1746
		1747	# the displayed name, this is a one way mapping
		1748	sub visible_name {
		1749	&as_string
		1750	}
		1751
		1752	# the original (read-only) location
		1753	sub load_path {
		1754	my ($self) = @_;
		1755
		1756	"$MAPDIR/$self->{path}.map"
		1757	}
		1758
		1759	# the temporary/swap location
		1760	sub save_path {
		1761	my ($self) = @_;
		1762
		1763	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1764	"$TMPDIR/$path.map"
		1765	}
		1766
		1767	# the unique path, undef == no special unique path
		1768	sub uniq_path {
		1769	my ($self) = @_;
		1770
		1771	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1772	"$UNIQUEDIR/$path"
1283	}	1773	}
1284		1774
1285	# and all this just because we cannot iterate over	1775	# and all this just because we cannot iterate over
1286	# all maps in C++...	1776	# all maps in C++...
1287	sub change_all_map_light {	1777	sub change_all_map_light {
…		…
1289		1779
1290	$_->change_map_light ($change)	1780	$_->change_map_light ($change)
1291	for grep $_->outdoor, values %cf::MAP;	1781	for grep $_->outdoor, values %cf::MAP;
1292	}	1782	}
1293		1783
		1784	sub decay_objects {
		1785	my ($self) = @_;
		1786
		1787	return if $self->{deny_reset};
		1788
		1789	$self->do_decay_objects;
		1790	}
		1791
		1792	sub unlink_save {
		1793	my ($self) = @_;
		1794
		1795	utf8::encode (my $save = $self->save_path);
		1796	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1797	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1798	}
		1799
1294	sub load_map_header($) {	1800	sub load_header_from($) {
1295	my ($path) = @_;	1801	my ($self, $path) = @_;
1296		1802
1297	utf8::encode $path;	1803	utf8::encode $path;
1298	aio_open $path, O_RDONLY, 0	1804	my $f = new_from_file cf::object::thawer $path
1299	or return;	1805	or return;
1300		1806
1301	my $map = cf::map::new	1807	$self->_load_header ($f)
1302	or return;	1808	or return;
1303		1809
1304	# for better error messages only, will be overwritten later	1810	local $MAP_LOADING{$self->{path}} = $self;
1305	$map->path ($path);	1811	$f->resolve_delayed_derefs;
1306		1812
1307	$map->load_header ($path)	1813	$self->{load_path} = $path;
		1814
		1815	1
		1816	}
		1817
		1818	sub load_header_orig {
		1819	my ($self) = @_;
		1820
		1821	$self->load_header_from ($self->load_path)
		1822	}
		1823
		1824	sub load_header_temp {
		1825	my ($self) = @_;
		1826
		1827	$self->load_header_from ($self->save_path)
		1828	}
		1829
		1830	sub prepare_temp {
		1831	my ($self) = @_;
		1832
		1833	$self->last_access ((delete $self->{last_access})
		1834	|| $cf::RUNTIME); #d#
		1835	# safety
		1836	$self->{instantiate_time} = $cf::RUNTIME
		1837	if $self->{instantiate_time} > $cf::RUNTIME;
		1838	}
		1839
		1840	sub prepare_orig {
		1841	my ($self) = @_;
		1842
		1843	$self->{load_original} = 1;
		1844	$self->{instantiate_time} = $cf::RUNTIME;
		1845	$self->last_access ($cf::RUNTIME);
		1846	$self->instantiate;
		1847	}
		1848
		1849	sub load_header {
		1850	my ($self) = @_;
		1851
		1852	if ($self->load_header_temp) {
		1853	$self->prepare_temp;
		1854	} else {
		1855	$self->load_header_orig
1308	or return;	1856	or return;
		1857	$self->prepare_orig;
		1858	}
1309		1859
1310	$map->{load_path} = $path;	1860	$self->{deny_reset} = 1
		1861	if $self->no_reset;
1311		1862
1312	$map	1863	$self->default_region (cf::region::find_by_path $self->{path})
		1864	unless $self->default_region;
		1865
		1866	1
1313	}	1867	}
1314		1868
1315	sub find;	1869	sub find;
1316	sub find {	1870	sub find {
1317	my ($path, $origin) = @_;	1871	my ($path, $origin) = @_;
1318		1872
1319	#warn "find<$path,$origin>\n";#d#
1320
1321	$path = new cf::path $path, $origin && $origin->path;	1873	$path = normalise $path, $origin && $origin->path;
1322	my $key = $path->as_string;
1323		1874
		1875	cf::lock_wait "map_data:$path";#d#remove
1324	cf::lock_wait "map_find:$key";	1876	cf::lock_wait "map_find:$path";
1325		1877
1326	$cf::MAP{$key} || do {	1878	$cf::MAP{$path} || do {
1327	my $guard = cf::lock_acquire "map_find:$key";	1879	my $guard1 = cf::lock_acquire "map_find:$path";
		1880	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1328		1881
1329	# do it the slow way	1882	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;	1883	or return;
1343		1884
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;	1885	$map->{last_save} = $cf::RUNTIME;
1356		1886
1357	Coro::cede;	1887	$map->load_header
		1888	or return;
1358		1889
1359	if ($map->should_reset) {	1890	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1891	# doing this can freeze the server in a sync job, obviously
		1892	#$cf::WAIT_FOR_TICK->wait;
		1893	undef $guard1;
		1894	undef $guard2;
1360	$map->reset;	1895	$map->reset;
1361	undef $guard;
1362	$map = find $path	1896	return find $path;
1363	or return;
1364	}	1897	}
1365		1898
1366	$cf::MAP{$key} = $map	1899	$cf::MAP{$path} = $map
1367	}	1900	}
1368	}	1901	}
		1902
		1903	sub pre_load { }
		1904	sub post_load { }
1369		1905
1370	sub load {	1906	sub load {
1371	my ($self) = @_;	1907	my ($self) = @_;
1372		1908
		1909	local $self->{deny_reset} = 1; # loading can take a long time
		1910
1373	my $path = $self->{path};	1911	my $path = $self->{path};
		1912
		1913	{
1374	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1914	my $guard = cf::lock_acquire "map_data:$path";
1375		1915
		1916	return unless $self->valid;
1376	return if $self->in_memory != cf::MAP_SWAPPED;	1917	return unless $self->in_memory == cf::MAP_SWAPPED;
1377		1918
1378	$self->in_memory (cf::MAP_LOADING);	1919	$self->in_memory (cf::MAP_LOADING);
1379		1920
1380	$self->alloc;	1921	$self->alloc;
1381	$self->load_objects ($self->{load_path}, 1)	1922
		1923	$self->pre_load;
		1924	cf::cede_to_tick;
		1925
		1926	my $f = new_from_file cf::object::thawer $self->{load_path};
		1927	$f->skip_block;
		1928	$self->_load_objects ($f)
1382	or return;	1929	or return;
1383		1930
1384	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1931	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1385	if delete $self->{load_original};	1932	if delete $self->{load_original};
1386		1933
1387	if (my $uniq = $path->uniq_path) {	1934	if (my $uniq = $self->uniq_path) {
1388	utf8::encode $uniq;	1935	utf8::encode $uniq;
1389	if (aio_open $uniq, O_RDONLY, 0) {	1936	unless (aio_stat $uniq) {
		1937	if (my $f = new_from_file cf::object::thawer $uniq) {
1390	$self->clear_unique_items;	1938	$self->clear_unique_items;
1391	$self->load_objects ($uniq, 0);	1939	$self->_load_objects ($f);
		1940	$f->resolve_delayed_derefs;
		1941	}
1392	}	1942	}
1393	}	1943	}
1394		1944
1395	Coro::cede;	1945	$f->resolve_delayed_derefs;
1396		1946
		1947	cf::cede_to_tick;
1397	# now do the right thing for maps	1948	# now do the right thing for maps
1398	$self->link_multipart_objects;	1949	$self->link_multipart_objects;
1399
1400	if ($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)	1950	$self->difficulty ($self->estimate_difficulty)
1409	unless $self->difficulty;	1951	unless $self->difficulty;
		1952	cf::cede_to_tick;
		1953
		1954	unless ($self->{deny_activate}) {
		1955	$self->decay_objects;
		1956	$self->fix_auto_apply;
		1957	$self->update_buttons;
		1958	cf::cede_to_tick;
		1959	$self->set_darkness_map;
		1960	cf::cede_to_tick;
1410	$self->activate;	1961	$self->activate;
1411	}	1962	}
1412		1963
1413	Coro::cede;	1964	$self->{last_save} = $cf::RUNTIME;
		1965	$self->last_access ($cf::RUNTIME);
1414		1966
1415	$self->in_memory (cf::MAP_IN_MEMORY);	1967	$self->in_memory (cf::MAP_IN_MEMORY);
		1968	}
		1969
		1970	$self->post_load;
		1971	}
		1972
		1973	sub customise_for {
		1974	my ($self, $ob) = @_;
		1975
		1976	return find "~" . $ob->name . "/" . $self->{path}
		1977	if $self->per_player;
		1978
		1979	# return find "?party/" . $ob->name . "/" . $self->{path}
		1980	# if $self->per_party;
		1981
		1982	$self
1416	}	1983	}
1417		1984
1418	# find and load all maps in the 3x3 area around a map	1985	# find and load all maps in the 3x3 area around a map
1419	sub load_diag {	1986	sub load_neighbours {
1420	my ($map) = @_;	1987	my ($map) = @_;
1421		1988
1422	my @diag; # diagonal neighbours	1989	my @neigh; # diagonal neighbours
1423		1990
1424	for (0 .. 3) {	1991	for (0 .. 3) {
1425	my $neigh = $map->tile_path ($_)	1992	my $neigh = $map->tile_path ($_)
1426	or next;	1993	or next;
1427	$neigh = find $neigh, $map	1994	$neigh = find $neigh, $map
1428	or next;	1995	or next;
1429	$neigh->load;	1996	$neigh->load;
1430		1997
		1998	push @neigh,
1431	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	1999	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1432	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2000	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1433	}	2001	}
1434		2002
1435	for (@diag) {	2003	for (grep defined $_->[0], @neigh) {
		2004	my ($path, $origin) = @$_;
1436	my $neigh = find @$_	2005	my $neigh = find $path, $origin
1437	or next;	2006	or next;
1438	$neigh->load;	2007	$neigh->load;
1439	}	2008	}
1440	}	2009	}
1441		2010
…		…
1446	}	2015	}
1447		2016
1448	sub do_load_sync {	2017	sub do_load_sync {
1449	my ($map) = @_;	2018	my ($map) = @_;
1450		2019
		2020	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2021	if $Coro::current == $Coro::main;
		2022
1451	cf::sync_job { $map->load };	2023	cf::sync_job { $map->load };
1452	}	2024	}
1453		2025
1454	our %MAP_PREFETCH;	2026	our %MAP_PREFETCH;
		2027	our $MAP_PREFETCHER = undef;
		2028
		2029	sub find_async {
		2030	my ($path, $origin, $load) = @_;
		2031
		2032	$path = normalise $path, $origin && $origin->{path};
		2033
		2034	if (my $map = $cf::MAP{$path}) {
		2035	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2036	}
		2037
		2038	$MAP_PREFETCH{$path} |= $load;
		2039
1455	our $MAP_PREFETCHER = Coro::async {	2040	$MAP_PREFETCHER ||= cf::async {
1456	while () {
1457	while (%MAP_PREFETCH) {	2041	while (%MAP_PREFETCH) {
1458	my $key = each %MAP_PREFETCH	2042	while (my ($k, $v) = each %MAP_PREFETCH) {
1459	or next;	2043	if (my $map = find $k) {
		2044	$map->load if $v;
		2045	}
		2046
1460	my $path = delete $MAP_PREFETCH{$key};	2047	delete $MAP_PREFETCH{$k};
1461
1462	my $map = find $path
1463	or next;
1464	$map->load;
1465	}	2048	}
1466	Coro::schedule;	2049	}
		2050	undef $MAP_PREFETCHER;
1467	}	2051	};
1468	};
1469
1470	sub find_async {
1471	my ($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;	2052	$MAP_PREFETCHER->prio (6);
1482		2053
1483	()	2054	()
1484	}	2055	}
1485		2056
1486	sub save {	2057	sub save {
1487	my ($self) = @_;	2058	my ($self) = @_;
1488		2059
1489	my $lock = cf::lock_acquire "map_data:" . $self->path;	2060	my $lock = cf::lock_acquire "map_data:$self->{path}";
1490		2061
1491	$self->{last_save} = $cf::RUNTIME;	2062	$self->{last_save} = $cf::RUNTIME;
1492		2063
1493	return unless $self->dirty;	2064	return unless $self->dirty;
1494		2065
1495	my $save = $self->{path}->save_path; utf8::encode $save;	2066	my $save = $self->save_path; utf8::encode $save;
1496	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2067	my $uniq = $self->uniq_path; utf8::encode $uniq;
1497		2068
1498	$self->{load_path} = $save;	2069	$self->{load_path} = $save;
1499		2070
1500	return if $self->{deny_save};	2071	return if $self->{deny_save};
1501		2072
…		…
1504	cf::async {	2075	cf::async {
1505	$_->contr->save for $self->players;	2076	$_->contr->save for $self->players;
1506	};	2077	};
1507		2078
1508	if ($uniq) {	2079	if ($uniq) {
1509	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2080	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1510	$self->save_objects ($uniq, cf::IO_UNIQUES);	2081	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1511	} else {	2082	} else {
1512	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2083	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1513	}	2084	}
1514	}	2085	}
1515		2086
1516	sub swap_out {	2087	sub swap_out {
1517	my ($self) = @_;	2088	my ($self) = @_;
1518		2089
1519	# save first because save cedes	2090	# save first because save cedes
1520	$self->save;	2091	$self->save;
1521		2092
1522	my $lock = cf::lock_acquire "map_data:" . $self->path;	2093	my $lock = cf::lock_acquire "map_data:$self->{path}";
1523		2094
1524	return if $self->players;	2095	return if $self->players;
1525	return if $self->in_memory != cf::MAP_IN_MEMORY;	2096	return if $self->in_memory != cf::MAP_IN_MEMORY;
1526	return if $self->{deny_save};	2097	return if $self->{deny_save};
1527		2098
		2099	$self->in_memory (cf::MAP_SWAPPED);
		2100
		2101	$self->deactivate;
		2102	$_->clear_links_to ($self) for values %cf::MAP;
1528	$self->clear;	2103	$self->clear;
1529	$self->in_memory (cf::MAP_SWAPPED);
1530	}	2104	}
1531		2105
1532	sub reset_at {	2106	sub reset_at {
1533	my ($self) = @_;	2107	my ($self) = @_;
1534		2108
1535	# TODO: safety, remove and allow resettable per-player maps	2109	# TODO: safety, remove and allow resettable per-player maps
1536	return 1e99 if $self->{path}{user_rel};
1537	return 1e99 if $self->{deny_reset};	2110	return 1e99 if $self->{deny_reset};
1538		2111
1539	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2112	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1540	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2113	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1541		2114
…		…
1546	my ($self) = @_;	2119	my ($self) = @_;
1547		2120
1548	$self->reset_at <= $cf::RUNTIME	2121	$self->reset_at <= $cf::RUNTIME
1549	}	2122	}
1550		2123
1551	sub unlink_save {
1552	my ($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	$self->save;
1570	}
1571
1572	sub reset {	2124	sub reset {
1573	my ($self) = @_;	2125	my ($self) = @_;
1574		2126
1575	my $lock = cf::lock_acquire "map_data:" . $self->path;	2127	my $lock = cf::lock_acquire "map_data:$self->{path}";
1576		2128
1577	return if $self->players;	2129	return if $self->players;
1578	return if $self->{path}{user_rel};#d#
1579		2130
1580	warn "resetting map ", $self->path;#d#	2131	warn "resetting map ", $self->path;
		2132
		2133	$self->in_memory (cf::MAP_SWAPPED);
		2134
		2135	# need to save uniques path
		2136	unless ($self->{deny_save}) {
		2137	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2138
		2139	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2140	if $uniq;
		2141	}
1581		2142
1582	delete $cf::MAP{$self->path};	2143	delete $cf::MAP{$self->path};
1583		2144
		2145	$self->deactivate;
1584	$_->clear_links_to ($self) for values %cf::MAP;	2146	$_->clear_links_to ($self) for values %cf::MAP;
		2147	$self->clear;
1585		2148
1586	$self->unlink_save;	2149	$self->unlink_save;
1587	$self->destroy;	2150	$self->destroy;
1588	}	2151	}
1589		2152
1590	my $nuke_counter = "aaaa";	2153	my $nuke_counter = "aaaa";
1591		2154
1592	sub nuke {	2155	sub nuke {
1593	my ($self) = @_;	2156	my ($self) = @_;
1594		2157
		2158	{
		2159	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2160
		2161	delete $cf::MAP{$self->path};
		2162
		2163	$self->unlink_save;
		2164
		2165	bless $self, "cf::map";
		2166	delete $self->{deny_reset};
1595	$self->{deny_save} = 1;	2167	$self->{deny_save} = 1;
1596	$self->reset_timeout (1);	2168	$self->reset_timeout (1);
1597	$self->rename ("{nuke}/" . ($nuke_counter++));	2169	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2170
		2171	$cf::MAP{$self->path} = $self;
		2172	}
		2173
1598	$self->reset; # polite request, might not happen	2174	$self->reset; # polite request, might not happen
1599	}	2175	}
1600		2176
1601	sub customise_for {	2177	=item $maps = cf::map::tmp_maps
1602	my ($map, $ob) = @_;
1603		2178
1604	if ($map->per_player) {	2179	Returns an arrayref with all map paths of currently instantiated and saved
1605	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2180	maps. May block.
		2181
		2182	=cut
		2183
		2184	sub tmp_maps() {
1606	}	2185	[
		2186	map {
		2187	utf8::decode $_;
		2188	/\.map$/
		2189	? normalise $_
		2190	: ()
		2191	} @{ aio_readdir $TMPDIR or [] }
		2192	]
		2193	}
1607		2194
1608	$map	2195	=item $maps = cf::map::random_maps
		2196
		2197	Returns an arrayref with all map paths of currently instantiated and saved
		2198	random maps. May block.
		2199
		2200	=cut
		2201
		2202	sub random_maps() {
		2203	[
		2204	map {
		2205	utf8::decode $_;
		2206	/\.map$/
		2207	? normalise "?random/$_"
		2208	: ()
		2209	} @{ aio_readdir $RANDOMDIR or [] }
		2210	]
1609	}	2211	}
1610		2212
1611	=item cf::map::unique_maps	2213	=item cf::map::unique_maps
1612		2214
1613	Returns an arrayref of cf::path's of all shared maps that have	2215	Returns an arrayref of paths of all shared maps that have
1614	instantiated unique items. May block.	2216	instantiated unique items. May block.
1615		2217
1616	=cut	2218	=cut
1617		2219
1618	sub unique_maps() {	2220	sub unique_maps() {
1619	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2221	[
1620	or return;	2222	map {
1621
1622	my @paths;
1623
1624	for (@$files) {
1625	utf8::decode $_;	2223	utf8::decode $_;
1626	next if /\.pst$/;	2224	/\.map$/
1627	next unless /^$PATH_SEP/o;	2225	? normalise $_
1628		2226	: ()
1629	push @paths, new cf::path $_;	2227	} @{ aio_readdir $UNIQUEDIR or [] }
1630	}	2228	]
1631
1632	\@paths
1633	}	2229	}
1634		2230
1635	package cf;	2231	package cf;
1636		2232
1637	=back	2233	=back
…		…
1655	map { $_, inv_recursive_ $_->inv } @_	2251	map { $_, inv_recursive_ $_->inv } @_
1656	}	2252	}
1657		2253
1658	sub inv_recursive {	2254	sub inv_recursive {
1659	inv_recursive_ inv $_[0]	2255	inv_recursive_ inv $_[0]
		2256	}
		2257
		2258	=item $ref = $ob->ref
		2259
		2260	creates and returns a persistent reference to an objetc that can be stored as a string.
		2261
		2262	=item $ob = cf::object::deref ($refstring)
		2263
		2264	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2265	even if the object actually exists. May block.
		2266
		2267	=cut
		2268
		2269	sub deref {
		2270	my ($ref) = @_;
		2271
		2272	# temporary compatibility#TODO#remove
		2273	$ref =~ s{^<}{player/<};
		2274
		2275	if ($ref =~ m{^player\/(<1\.\d+>)/(.*)$}) {
		2276	my ($uuid, $name) = ($1, $2);
		2277	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2278	or return;
		2279	$pl->ob->uuid eq $uuid
		2280	or return;
		2281
		2282	$pl->ob
		2283	} else {
		2284	warn "$ref: cannot resolve object reference\n";
		2285	undef
		2286	}
1660	}	2287	}
1661		2288
1662	package cf;	2289	package cf;
1663		2290
1664	=back	2291	=back
…		…
1683		2310
1684	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2311	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1685		2312
1686	if ($self->{record_replies}) {	2313	if ($self->{record_replies}) {
1687	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2314	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2315
1688	} else {	2316	} else {
		2317	my $pl = $self->contr;
		2318
		2319	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2320	my $dialog = $pl->{npc_dialog};
		2321	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2322
		2323	} else {
1689	$msg = $npc->name . " says: $msg" if $npc;	2324	$msg = $npc->name . " says: $msg" if $npc;
1690	$self->message ($msg, $flags);	2325	$self->message ($msg, $flags);
		2326	}
1691	}	2327	}
		2328	}
		2329
		2330	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2331
		2332	=cut
		2333
		2334	sub cf::object::send_msg {
		2335	my $pl = shift->contr
		2336	or return;
		2337	$pl->send_msg (@_);
1692	}	2338	}
1693		2339
1694	=item $player_object->may ("access")	2340	=item $player_object->may ("access")
1695		2341
1696	Returns wether the given player is authorized to access resource "access"	2342	Returns wether the given player is authorized to access resource "access"
…		…
1709		2355
1710	=item $player_object->enter_link	2356	=item $player_object->enter_link
1711		2357
1712	Freezes the player and moves him/her to a special map (C<{link}>).	2358	Freezes the player and moves him/her to a special map (C<{link}>).
1713		2359
1714	The player should be reaosnably safe there for short amounts of time. You	2360	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.	2361	I<MUST> call C<leave_link> as soon as possible, though.
1716		2362
		2363	Will never block.
		2364
1717	=item $player_object->leave_link ($map, $x, $y)	2365	=item $player_object->leave_link ($map, $x, $y)
1718		2366
1719	Moves the player out of the specila link map onto the given map. If the	2367	Moves the player out of the special C<{link}> map onto the specified
1720	map is not valid (or omitted), the player will be moved back to the	2368	map. If the map is not valid (or omitted), the player will be moved back
1721	location he/she was before the call to C<enter_link>, or, if that fails,	2369	to the location he/she was before the call to C<enter_link>, or, if that
1722	to the emergency map position.	2370	fails, to the emergency map position.
1723		2371
1724	Might block.	2372	Might block.
1725		2373
1726	=cut	2374	=cut
		2375
		2376	sub link_map {
		2377	unless ($LINK_MAP) {
		2378	$LINK_MAP = cf::map::find "{link}"
		2379	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2380	$LINK_MAP->load;
		2381	}
		2382
		2383	$LINK_MAP
		2384	}
1727		2385
1728	sub cf::object::player::enter_link {	2386	sub cf::object::player::enter_link {
1729	my ($self) = @_;	2387	my ($self) = @_;
1730		2388
1731	$self->deactivate_recursive;	2389	$self->deactivate_recursive;
1732		2390
1733	return if $self->map == $LINK_MAP;	2391	return if UNIVERSAL::isa $self->map, "ext::map_link";
1734		2392
1735	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2393	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1736	if $self->map;	2394	if $self->map && $self->map->{path} ne "{link}";
1737		2395
1738	$self->enter_map ($LINK_MAP, 20, 20);	2396	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1739	}	2397	}
1740		2398
1741	sub cf::object::player::leave_link {	2399	sub cf::object::player::leave_link {
1742	my ($self, $map, $x, $y) = @_;	2400	my ($self, $map, $x, $y) = @_;
		2401
		2402	return unless $self->contr->active;
1743		2403
1744	my $link_pos = delete $self->{_link_pos};	2404	my $link_pos = delete $self->{_link_pos};
1745		2405
1746	unless ($map) {	2406	unless ($map) {
1747	# restore original map position	2407	# restore original map position
…		…
1761	# use -1 or undef as default coordinates, not 0, 0	2421	# use -1 or undef as default coordinates, not 0, 0
1762	($x, $y) = ($map->enter_x, $map->enter_y)	2422	($x, $y) = ($map->enter_x, $map->enter_y)
1763	if $x <=0 && $y <= 0;	2423	if $x <=0 && $y <= 0;
1764		2424
1765	$map->load;	2425	$map->load;
1766	$map->load_diag;	2426	$map->load_neighbours;
1767		2427
1768	return unless $self->contr->active;	2428	return unless $self->contr->active;
1769	$self->activate_recursive;	2429	$self->activate_recursive;
		2430
		2431	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1770	$self->enter_map ($map, $x, $y);	2432	$self->enter_map ($map, $x, $y);
1771	}	2433	}
1772		2434
1773	cf::player->attach (	2435	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1774	on_logout => sub {
1775	my ($pl) = @_;
1776		2436
1777	# abort map switching before logout	2437	Moves the player to the given map-path and coordinates by first freezing
1778	if ($pl->ob->{_link_pos}) {	2438	her, loading and preparing them map, calling the provided $check callback
1779	cf::sync_job {	2439	that has to return the map if sucecssful, and then unfreezes the player on
1780	$pl->ob->leave_link	2440	the new (success) or old (failed) map position. In either case, $done will
1781	};	2441	be called at the end of this process.
1782	}
1783	},
1784	on_login => sub {
1785	my ($pl) = @_;
1786		2442
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	2443	=cut
		2444
		2445	our $GOTOGEN;
1808		2446
1809	sub cf::object::player::goto {	2447	sub cf::object::player::goto {
1810	my ($self, $path, $x, $y) = @_;	2448	my ($self, $path, $x, $y, $check, $done) = @_;
1811		2449
1812	$path = new cf::path $path;	2450	# do generation counting so two concurrent goto's will be executed in-order
		2451	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1813		2452
1814	$self->enter_link;	2453	$self->enter_link;
1815		2454
1816	(async {	2455	(async {
1817	my $map = cf::map::find $path->as_string;	2456	# *tag paths override both path and x|y
		2457	if ($path =~ /^\*(.*)$/) {
		2458	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2459	my $ob = $obs[rand @obs];
		2460
		2461	# see if we actually can go there
		2462	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2463	$ob = $obs[rand @obs];
		2464	} else {
		2465	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2466	}
		2467	# else put us there anyways for now #d#
		2468
		2469	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2470	} else {
		2471	($path, $x, $y) = (undef, undef, undef);
		2472	}
		2473	}
		2474
		2475	my $map = eval {
		2476	my $map = defined $path ? cf::map::find $path : undef;
		2477
		2478	if ($map) {
1818	$map = $map->customise_for ($self) if $map;	2479	$map = $map->customise_for ($self);
1819		2480	$map = $check->($map) if $check && $map;
1820	# warn "entering ", $map->path, " at ($x, $y)\n"	2481	} else {
1821	# if $map;
1822
1823	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2482	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2483	}
1824		2484
		2485	$map
		2486	};
		2487
		2488	if ($@) {
		2489	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2490	LOG llevError | logBacktrace, Carp::longmess $@;
		2491	}
		2492
		2493	if ($gen == $self->{_goto_generation}) {
		2494	delete $self->{_goto_generation};
1825	$self->leave_link ($map, $x, $y);	2495	$self->leave_link ($map, $x, $y);
		2496	}
		2497
		2498	$done->() if $done;
1826	})->prio (1);	2499	})->prio (1);
1827	}	2500	}
1828		2501
1829	=item $player_object->enter_exit ($exit_object)	2502	=item $player_object->enter_exit ($exit_object)
1830		2503
…		…
1832		2505
1833	sub parse_random_map_params {	2506	sub parse_random_map_params {
1834	my ($spec) = @_;	2507	my ($spec) = @_;
1835		2508
1836	my $rmp = { # defaults	2509	my $rmp = { # defaults
1837	xsize => 10,	2510	xsize => (cf::rndm 15, 40),
1838	ysize => 10,	2511	ysize => (cf::rndm 15, 40),
		2512	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2513	#layout => string,
1839	};	2514	};
1840		2515
1841	for (split /\n/, $spec) {	2516	for (split /\n/, $spec) {
1842	my ($k, $v) = split /\s+/, $_, 2;	2517	my ($k, $v) = split /\s+/, $_, 2;
1843		2518
…		…
1847	$rmp	2522	$rmp
1848	}	2523	}
1849		2524
1850	sub prepare_random_map {	2525	sub prepare_random_map {
1851	my ($exit) = @_;	2526	my ($exit) = @_;
		2527
		2528	my $guard = cf::lock_acquire "exit_prepare:$exit";
1852		2529
1853	# all this does is basically replace the /! path by	2530	# all this does is basically replace the /! path by
1854	# a new random map path (?random/...) with a seed	2531	# a new random map path (?random/...) with a seed
1855	# that depends on the exit object	2532	# that depends on the exit object
1856		2533
1857	my $rmp = parse_random_map_params $exit->msg;	2534	my $rmp = parse_random_map_params $exit->msg;
1858		2535
1859	if ($exit->map) {	2536	if ($exit->map) {
1860	$rmp->{region} = $exit->map->region_name;	2537	$rmp->{region} = $exit->region->name;
1861	$rmp->{origin_map} = $exit->map->path;	2538	$rmp->{origin_map} = $exit->map->path;
1862	$rmp->{origin_x} = $exit->x;	2539	$rmp->{origin_x} = $exit->x;
1863	$rmp->{origin_y} = $exit->y;	2540	$rmp->{origin_y} = $exit->y;
1864	}	2541	}
1865		2542
1866	$rmp->{random_seed} ||= $exit->random_seed;	2543	$rmp->{random_seed} ||= $exit->random_seed;
1867		2544
1868	my $data = cf::to_json $rmp;	2545	my $data = cf::to_json $rmp;
1869	my $md5 = Digest::MD5::md5_hex $data;	2546	my $md5 = Digest::MD5::md5_hex $data;
		2547	my $meta = "$RANDOMDIR/$md5.meta";
1870		2548
1871	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2549	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1872	aio_write $fh, 0, (length $data), $data, 0;	2550	aio_write $fh, 0, (length $data), $data, 0;
		2551	undef $fh;
		2552	aio_rename "$meta~", $meta;
1873		2553
1874	$exit->slaying ("?random/$md5");	2554	$exit->slaying ("?random/$md5");
1875	$exit->msg (undef);	2555	$exit->msg (undef);
1876	}	2556	}
1877	}	2557	}
…		…
1879	sub cf::object::player::enter_exit {	2559	sub cf::object::player::enter_exit {
1880	my ($self, $exit) = @_;	2560	my ($self, $exit) = @_;
1881		2561
1882	return unless $self->type == cf::PLAYER;	2562	return unless $self->type == cf::PLAYER;
1883		2563
		2564	if ($exit->slaying eq "/!") {
		2565	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2566	# the problem is that $exit might not survive long enough
		2567	# so it needs to be done right now, right here
		2568	cf::sync_job { prepare_random_map $exit };
		2569	}
		2570
		2571	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2572	my $hp = $exit->stats->hp;
		2573	my $sp = $exit->stats->sp;
		2574
1884	$self->enter_link;	2575	$self->enter_link;
		2576
		2577	# if exit is damned, update players death & WoR home-position
		2578	$self->contr->savebed ($slaying, $hp, $sp)
		2579	if $exit->flag (FLAG_DAMNED);
1885		2580
1886	(async {	2581	(async {
1887	$self->deactivate_recursive; # just to be sure	2582	$self->deactivate_recursive; # just to be sure
1888	unless (eval {	2583	unless (eval {
1889	prepare_random_map $exit	2584	$self->goto ($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		2585
1895	1;	2586	1;
1896	}) {	2587	}) {
1897	$self->message ("Something went wrong deep within the crossfire server. "	2588	$self->message ("Something went wrong deep within the crossfire server. "
1898	. "I'll try to bring you back to the map you were before. "	2589	. "I'll try to bring you back to the map you were before. "
1899	. "Please report this to the dungeon master!",	2590	. "Please report this to the dungeon master!",
1900	cf::NDI_UNIQUE | cf::NDI_RED);	2591	cf::NDI_UNIQUE | cf::NDI_RED);
1901		2592
1902	warn "ERROR in enter_exit: $@";	2593	warn "ERROR in enter_exit: $@";
1903	$self->leave_link;	2594	$self->leave_link;
1904	}	2595	}
1905	})->prio (1);	2596	})->prio (1);
…		…
1918		2609
1919	sub cf::client::send_drawinfo {	2610	sub cf::client::send_drawinfo {
1920	my ($self, $text, $flags) = @_;	2611	my ($self, $text, $flags) = @_;
1921		2612
1922	utf8::encode $text;	2613	utf8::encode $text;
1923	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2614	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1924	}	2615	}
1925		2616
		2617	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2618
		2619	Send a drawinfo or msg packet to the client, formatting the msg for the
		2620	client if neccessary. C<$type> should be a string identifying the type of
		2621	the message, with C<log> being the default. If C<$color> is negative, suppress
		2622	the message unless the client supports the msg packet.
		2623
		2624	=cut
		2625
		2626	our %CHANNEL = (
		2627	"c/identify" => {
		2628	id => "identify",
		2629	title => "Identify",
		2630	reply => undef,
		2631	tooltip => "Items recently identified",
		2632	},
		2633	"c/examine" => {
		2634	id => "examine",
		2635	title => "Examine",
		2636	reply => undef,
		2637	tooltip => "Signs and other items you examined",
		2638	},
		2639	);
		2640
		2641	sub cf::client::send_msg {
		2642	my ($self, $channel, $msg, $color, @extra) = @_;
		2643
		2644	$msg = $self->pl->expand_cfpod ($msg);
		2645
		2646	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2647
		2648	# check predefined channels, for the benefit of C
		2649	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2650
		2651	if (ref $channel) {
		2652	# send meta info to client, if not yet sent
		2653	unless (exists $self->{channel}{$channel->{id}}) {
		2654	$self->{channel}{$channel->{id}} = $channel;
		2655	$self->ext_msg (channel_info => $channel)
		2656	if $self->can_msg;
		2657	}
		2658
		2659	$channel = $channel->{id};
		2660	}
		2661
		2662	return unless @extra || length $msg;
		2663
		2664	if ($self->can_msg) {
		2665	# default colour, mask it out
		2666	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2667	if $color & cf::NDI_DEF;
		2668
		2669	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2670	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2671	} else {
		2672	if ($color >= 0) {
		2673	# replace some tags by gcfclient-compatible ones
		2674	for ($msg) {
		2675	1 while
		2676	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2677	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2678	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2679	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2680	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2681	}
		2682
		2683	$color &= cf::NDI_COLOR_MASK;
		2684
		2685	utf8::encode $msg;
		2686
		2687	if (0 && $msg =~ /\[/) {
		2688	# COMMAND/INFO
		2689	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2690	} else {
		2691	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2692	$self->send_packet ("drawinfo $color $msg")
		2693	}
		2694	}
		2695	}
		2696	}
		2697
		2698	=item $client->ext_msg ($type, @msg)
		2699
		2700	Sends an ext event to the client.
		2701
		2702	=cut
		2703
		2704	sub cf::client::ext_msg($$@) {
		2705	my ($self, $type, @msg) = @_;
		2706
		2707	if ($self->extcmd == 2) {
		2708	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2709	} elsif ($self->extcmd == 1) { # TODO: remove
		2710	push @msg, msgtype => "event_$type";
		2711	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2712	}
		2713	}
		2714
		2715	=item $client->ext_reply ($msgid, @msg)
		2716
		2717	Sends an ext reply to the client.
		2718
		2719	=cut
		2720
		2721	sub cf::client::ext_reply($$@) {
		2722	my ($self, $id, @msg) = @_;
		2723
		2724	if ($self->extcmd == 2) {
		2725	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2726	} elsif ($self->extcmd == 1) {
		2727	#TODO: version 1, remove
		2728	unshift @msg, msgtype => "reply", msgid => $id;
		2729	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2730	}
		2731	}
1926		2732
1927	=item $success = $client->query ($flags, "text", \&cb)	2733	=item $success = $client->query ($flags, "text", \&cb)
1928		2734
1929	Queues a query to the client, calling the given callback with	2735	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>,	2736	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>.	2737	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1932		2738
1933	Queries can fail, so check the return code. Or don't, as queries will become	2739	Queries can fail, so check the return code. Or don't, as queries will
1934	reliable at some point in the future.	2740	become reliable at some point in the future.
1935		2741
1936	=cut	2742	=cut
1937		2743
1938	sub cf::client::query {	2744	sub cf::client::query {
1939	my ($self, $flags, $text, $cb) = @_;	2745	my ($self, $flags, $text, $cb) = @_;
…		…
1947	utf8::encode $text;	2753	utf8::encode $text;
1948	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2754	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1949		2755
1950	$self->send_packet ($self->{query_queue}[0][0])	2756	$self->send_packet ($self->{query_queue}[0][0])
1951	if @{ $self->{query_queue} } == 1;	2757	if @{ $self->{query_queue} } == 1;
		2758
		2759	1
1952	}	2760	}
1953		2761
1954	cf::client->attach (	2762	cf::client->attach (
		2763	on_connect => sub {
		2764	my ($ns) = @_;
		2765
		2766	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2767	},
1955	on_reply => sub {	2768	on_reply => sub {
1956	my ($ns, $msg) = @_;	2769	my ($ns, $msg) = @_;
1957		2770
1958	# this weird shuffling is so that direct followup queries	2771	# this weird shuffling is so that direct followup queries
1959	# get handled first	2772	# get handled first
1960	my $queue = delete $ns->{query_queue}	2773	my $queue = delete $ns->{query_queue}
1961	or return; # be conservative, not sure how that can happen, but we saw a crash here	2774	or return; # be conservative, not sure how that can happen, but we saw a crash here
1962		2775
1963	(shift @$queue)->[1]->($msg);	2776	(shift @$queue)->[1]->($msg);
		2777	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1964		2778
1965	push @{ $ns->{query_queue} }, @$queue;	2779	push @{ $ns->{query_queue} }, @$queue;
1966		2780
1967	if (@{ $ns->{query_queue} } == @$queue) {	2781	if (@{ $ns->{query_queue} } == @$queue) {
1968	if (@$queue) {	2782	if (@$queue) {
…		…
1970	} else {	2784	} else {
1971	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2785	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1972	}	2786	}
1973	}	2787	}
1974	},	2788	},
		2789	on_exticmd => sub {
		2790	my ($ns, $buf) = @_;
		2791
		2792	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2793
		2794	if (ref $msg) {
		2795	my ($type, $reply, @payload) =
		2796	"ARRAY" eq ref $msg
		2797	? @$msg
		2798	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2799
		2800	my @reply;
		2801
		2802	if (my $cb = $EXTICMD{$type}) {
		2803	@reply = $cb->($ns, @payload);
		2804	}
		2805
		2806	$ns->ext_reply ($reply, @reply)
		2807	if $reply;
		2808
		2809	} else {
		2810	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2811	}
		2812
		2813	cf::override;
		2814	},
1975	);	2815	);
1976		2816
1977	=item $client->async (\&cb)	2817	=item $client->async (\&cb)
1978		2818
1979	Create a new coroutine, running the specified callback. The coroutine will	2819	Create a new coroutine, running the specified callback. The coroutine will
…		…
2020	our $safe = new Safe "safe";	2860	our $safe = new Safe "safe";
2021	our $safe_hole = new Safe::Hole;	2861	our $safe_hole = new Safe::Hole;
2022		2862
2023	$SIG{FPE} = 'IGNORE';	2863	$SIG{FPE} = 'IGNORE';
2024		2864
2025	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2865	$safe->permit_only (Opcode::opset qw(
		2866	:base_core :base_mem :base_orig :base_math
		2867	grepstart grepwhile mapstart mapwhile
		2868	sort time
		2869	));
2026		2870
2027	# here we export the classes and methods available to script code	2871	# here we export the classes and methods available to script code
2028		2872
2029	=pod	2873	=pod
2030		2874
2031	The following fucntions and emthods are available within a safe environment:	2875	The following functions and methods are available within a safe environment:
2032		2876
2033	cf::object contr pay_amount pay_player map	2877	cf::object
		2878	contr pay_amount pay_player map x y force_find force_add
		2879	insert remove name archname title slaying race decrease_ob_nr
		2880
2034	cf::object::player player	2881	cf::object::player
2035	cf::player peaceful	2882	player
2036	cf::map trigger	2883
		2884	cf::player
		2885	peaceful
		2886
		2887	cf::map
		2888	trigger
2037		2889
2038	=cut	2890	=cut
2039		2891
2040	for (	2892	for (
2041	["cf::object" => qw(contr pay_amount pay_player map)],	2893	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2894	insert remove inv name archname title slaying race
		2895	decrease_ob_nr)],
2042	["cf::object::player" => qw(player)],	2896	["cf::object::player" => qw(player)],
2043	["cf::player" => qw(peaceful)],	2897	["cf::player" => qw(peaceful)],
2044	["cf::map" => qw(trigger)],	2898	["cf::map" => qw(trigger)],
2045	) {	2899	) {
2046	no strict 'refs';	2900	no strict 'refs';
…		…
2117	=back	2971	=back
2118		2972
2119	=cut	2973	=cut
2120		2974
2121	#############################################################################	2975	#############################################################################
		2976	# the server's init and main functions
2122		2977
2123	=head2 EXTENSION DATABASE SUPPORT	2978	sub load_facedata($) {
		2979	my ($path) = @_;
2124		2980
2125	Crossfire maintains a very simple database for extension use. It can	2981	# HACK to clear player env face cache, we need some signal framework
2126	currently store anything that can be serialised using Storable, which	2982	# for this (global event?)
2127	excludes objects.	2983	%ext::player_env::MUSIC_FACE_CACHE = ();
2128		2984
2129	The parameter C<$family> should best start with the name of the extension	2985	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2130	using it, it should be unique.
2131		2986
2132	=over 4	2987	warn "loading facedata from $path\n";
2133		2988
2134	=item $hashref = cf::db_get $family	2989	my $facedata;
		2990	0 < aio_load $path, $facedata
		2991	or die "$path: $!";
2135		2992
2136	Return a hashref for use by the extension C<$family>, which can be	2993	$facedata = Coro::Storable::thaw $facedata;
2137	modified. After modifications, you have to call C<cf::db_dirty> or
2138	C<cf::db_sync>.
2139		2994
2140	=item $value = cf::db_get $family => $key	2995	$facedata->{version} == 2
		2996	or cf::cleanup "$path: version mismatch, cannot proceed.";
2141		2997
2142	Returns a single value from the database	2998	# patch in the exptable
2143		2999	$facedata->{resource}{"res/exp_table"} = {
2144	=item cf::db_put $family => $hashref	3000	type => FT_RSRC,
2145		3001	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	});	3002	};
		3003	cf::cede_to_tick;
2195		3004
2196	sub db_dirty() {
2197	$dirty = 1;
2198	$idle->start;
2199	}	3005	{
		3006	my $faces = $facedata->{faceinfo};
2200		3007
2201	sub db_get($;$) {	3008	while (my ($face, $info) = each %$faces) {
2202	@_ >= 2	3009	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2203	? $DB->{$_[0]}{$_[1]}	3010	cf::face::set_visibility $idx, $info->{visibility};
2204	: ($DB->{$_[0]} ||= { })	3011	cf::face::set_magicmap $idx, $info->{magicmap};
2205	}	3012	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3013	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2206		3014
2207	sub db_put($$;$) {	3015	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	},	3016	}
2221	);
2222	}
2223		3017
2224	#############################################################################	3018	while (my ($face, $info) = each %$faces) {
2225	# the server's main()	3019	next unless $info->{smooth};
		3020	my $idx = cf::face::find $face
		3021	or next;
		3022	if (my $smooth = cf::face::find $info->{smooth}) {
		3023	cf::face::set_smooth $idx, $smooth;
		3024	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3025	} else {
		3026	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3027	}
2226		3028
2227	sub cfg_load {	3029	cf::cede_to_tick;
		3030	}
		3031	}
		3032
		3033	{
		3034	my $anims = $facedata->{animinfo};
		3035
		3036	while (my ($anim, $info) = each %$anims) {
		3037	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3038	cf::cede_to_tick;
		3039	}
		3040
		3041	cf::anim::invalidate_all; # d'oh
		3042	}
		3043
		3044	{
		3045	# TODO: for gcfclient pleasure, we should give resources
		3046	# that gcfclient doesn't grok a >10000 face index.
		3047	my $res = $facedata->{resource};
		3048
		3049	my $soundconf = delete $res->{"res/sound.conf"};
		3050
		3051	while (my ($name, $info) = each %$res) {
		3052	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3053	my $data;
		3054
		3055	if ($info->{type} & 1) {
		3056	# prepend meta info
		3057
		3058	my $meta = $enc->encode ({
		3059	name => $name,
		3060	%{ $info->{meta} || {} },
		3061	});
		3062
		3063	$data = pack "(w/a*)*", $meta, $info->{data};
		3064	} else {
		3065	$data = $info->{data};
		3066	}
		3067
		3068	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3069	cf::face::set_type $idx, $info->{type};
		3070
		3071	cf::cede_to_tick;
		3072	}
		3073
		3074	if ($soundconf) {
		3075	$soundconf = $enc->decode (delete $soundconf->{data});
		3076
		3077	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3078	my $sound = $soundconf->{compat}[$_]
		3079	or next;
		3080
		3081	my $face = cf::face::find "sound/$sound->[1]";
		3082	cf::sound::set $sound->[0] => $face;
		3083	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3084	}
		3085
		3086	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3087	my $face = cf::face::find "sound/$v";
		3088	cf::sound::set $k => $face;
		3089	}
		3090	}
		3091	}
		3092
		3093	1
		3094	}
		3095
		3096	register_exticmd fx_want => sub {
		3097	my ($ns, $want) = @_;
		3098
		3099	while (my ($k, $v) = each %$want) {
		3100	$ns->fx_want ($k, $v);
		3101	}
		3102	};
		3103
		3104	sub reload_regions {
		3105	# HACK to clear player env face cache, we need some signal framework
		3106	# for this (global event?)
		3107	%ext::player_env::MUSIC_FACE_CACHE = ();
		3108
		3109	load_resource_file "$MAPDIR/regions"
		3110	or die "unable to load regions file\n";
		3111
		3112	for (cf::region::list) {
		3113	$_->{match} = qr/$_->{match}/
		3114	if exists $_->{match};
		3115	}
		3116	}
		3117
		3118	sub reload_facedata {
		3119	load_facedata "$DATADIR/facedata"
		3120	or die "unable to load facedata\n";
		3121	}
		3122
		3123	sub reload_archetypes {
		3124	load_resource_file "$DATADIR/archetypes"
		3125	or die "unable to load archetypes\n";
		3126	#d# NEED to laod twice to resolve forward references
		3127	# this really needs to be done in an extra post-pass
		3128	# (which needs to be synchronous, so solve it differently)
		3129	load_resource_file "$DATADIR/archetypes"
		3130	or die "unable to load archetypes\n";
		3131	}
		3132
		3133	sub reload_treasures {
		3134	load_resource_file "$DATADIR/treasures"
		3135	or die "unable to load treasurelists\n";
		3136	}
		3137
		3138	sub reload_resources {
		3139	warn "reloading resource files...\n";
		3140
		3141	reload_regions;
		3142	reload_facedata;
		3143	#reload_archetypes;#d#
		3144	reload_archetypes;
		3145	reload_treasures;
		3146
		3147	warn "finished reloading resource files\n";
		3148	}
		3149
		3150	sub init {
		3151	reload_resources;
		3152	}
		3153
		3154	sub reload_config {
2228	open my $fh, "<:utf8", cf::confdir . "/config"	3155	open my $fh, "<:utf8", "$CONFDIR/config"
2229	or return;	3156	or return;
2230		3157
2231	local $/;	3158	local $/;
2232	*CFG = YAML::Syck::Load <$fh>;	3159	*CFG = YAML::Syck::Load <$fh>;
2233		3160
…		…
2247		3174
2248	sub main {	3175	sub main {
2249	# we must not ever block the main coroutine	3176	# we must not ever block the main coroutine
2250	local $Coro::idle = sub {	3177	local $Coro::idle = sub {
2251	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3178	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3179	(async {
2252	async { Event::one_event };	3180	Event::one_event;
		3181	})->prio (Coro::PRIO_MAX);
2253	};	3182	};
2254		3183
2255	cfg_load;	3184	reload_config;
2256	db_load;	3185	db_init;
2257	load_extensions;	3186	load_extensions;
		3187
		3188	$TICK_WATCHER->start;
2258	Event::loop;	3189	Event::loop;
2259	}	3190	}
2260		3191
2261	#############################################################################	3192	#############################################################################
2262	# initialisation and cleanup	3193	# initialisation and cleanup
2263		3194
2264	# install some emergency cleanup handlers	3195	# install some emergency cleanup handlers
2265	BEGIN {	3196	BEGIN {
2266	for my $signal (qw(INT HUP TERM)) {	3197	for my $signal (qw(INT HUP TERM)) {
2267	Event->signal (	3198	Event->signal (
		3199	reentrant => 0,
2268	data => WF_AUTOCANCEL,	3200	data => WF_AUTOCANCEL,
2269	signal => $signal,	3201	signal => $signal,
		3202	prio => 0,
2270	cb => sub {	3203	cb => sub {
2271	cf::cleanup "SIG$signal";	3204	cf::cleanup "SIG$signal";
2272	},	3205	},
2273	);	3206	);
2274	}	3207	}
2275	}	3208	}
2276		3209
		3210	sub write_runtime {
		3211	my $runtime = "$LOCALDIR/runtime";
		3212
		3213	# first touch the runtime file to show we are still running:
		3214	# the fsync below can take a very very long time.
		3215
		3216	IO::AIO::aio_utime $runtime, undef, undef;
		3217
		3218	my $guard = cf::lock_acquire "write_runtime";
		3219
		3220	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3221	or return;
		3222
		3223	my $value = $cf::RUNTIME + 90 + 10;
		3224	# 10 is the runtime save interval, for a monotonic clock
		3225	# 60 allows for the watchdog to kill the server.
		3226
		3227	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3228	and return;
		3229
		3230	# always fsync - this file is important
		3231	aio_fsync $fh
		3232	and return;
		3233
		3234	# touch it again to show we are up-to-date
		3235	aio_utime $fh, undef, undef;
		3236
		3237	close $fh
		3238	or return;
		3239
		3240	aio_rename "$runtime~", $runtime
		3241	and return;
		3242
		3243	warn "runtime file written.\n";
		3244
		3245	1
		3246	}
		3247
2277	sub emergency_save() {	3248	sub emergency_save() {
2278	my $freeze_guard = cf::freeze_mainloop;	3249	my $freeze_guard = cf::freeze_mainloop;
2279		3250
2280	warn "enter emergency perl save\n";	3251	warn "enter emergency perl save\n";
2281		3252
2282	cf::sync_job {	3253	cf::sync_job {
2283	# use a peculiar iteration method to avoid tripping on perl	3254	# use a peculiar iteration method to avoid tripping on perl
2284	# refcount bugs in for. also avoids problems with players	3255	# refcount bugs in for. also avoids problems with players
2285	# and maps saved/Destroyed asynchronously.	3256	# and maps saved/destroyed asynchronously.
2286	warn "begin emergency player save\n";	3257	warn "begin emergency player save\n";
2287	for my $login (keys %cf::PLAYER) {	3258	for my $login (keys %cf::PLAYER) {
2288	my $pl = $cf::PLAYER{$login} or next;	3259	my $pl = $cf::PLAYER{$login} or next;
2289	$pl->valid or next;	3260	$pl->valid or next;
2290	$pl->save;	3261	$pl->save;
…		…
2296	my $map = $cf::MAP{$path} or next;	3267	my $map = $cf::MAP{$path} or next;
2297	$map->valid or next;	3268	$map->valid or next;
2298	$map->save;	3269	$map->save;
2299	}	3270	}
2300	warn "end emergency map save\n";	3271	warn "end emergency map save\n";
		3272
		3273	warn "begin emergency database checkpoint\n";
		3274	BDB::db_env_txn_checkpoint $DB_ENV;
		3275	warn "end emergency database checkpoint\n";
2301	};	3276	};
2302		3277
2303	warn "leave emergency perl save\n";	3278	warn "leave emergency perl save\n";
2304	}	3279	}
2305		3280
		3281	sub post_cleanup {
		3282	my ($make_core) = @_;
		3283
		3284	warn Carp::longmess "post_cleanup backtrace"
		3285	if $make_core;
		3286	}
		3287
2306	sub reload() {	3288	sub do_reload_perl() {
2307	# can/must only be called in main	3289	# can/must only be called in main
2308	if ($Coro::current != $Coro::main) {	3290	if ($Coro::current != $Coro::main) {
2309	warn "can only reload from main coroutine\n";	3291	warn "can only reload from main coroutine";
2310	return;	3292	return;
2311	}	3293	}
2312		3294
2313	warn "reloading...";	3295	warn "reloading...";
2314		3296
2315	warn "freezing server";	3297	warn "entering sync_job";
2316	my $guard = freeze_mainloop;	3298
		3299	cf::sync_job {
		3300	cf::write_runtime; # external watchdog should not bark
2317	cf::emergency_save;	3301	cf::emergency_save;
		3302	cf::write_runtime; # external watchdog should not bark
2318		3303
2319	warn "sync database to disk";	3304	warn "syncing database to disk";
2320	cf::db_sync;	3305	BDB::db_env_txn_checkpoint $DB_ENV;
2321	IO::AIO::flush;
2322		3306
2323	eval {
2324	# if anything goes wrong in here, we should simply crash as we already saved	3307	# if anything goes wrong in here, we should simply crash as we already saved
2325		3308
2326	warn "cancel all watchers";	3309	warn "cancelling all WF_AUTOCANCEL watchers";
2327	for (Event::all_watchers) {	3310	for (Event::all_watchers) {
2328	$_->cancel if $_->data & WF_AUTOCANCEL;	3311	$_->cancel if $_->data & WF_AUTOCANCEL;
2329	}	3312	}
2330		3313
		3314	warn "flushing outstanding aio requests";
		3315	for (;;) {
		3316	BDB::flush;
		3317	IO::AIO::flush;
		3318	Coro::cede;
		3319	last unless IO::AIO::nreqs || BDB::nreqs;
		3320	warn "iterate...";
		3321	}
		3322
		3323	++$RELOAD;
		3324
2331	warn "cancel all extension coros";	3325	warn "cancelling all extension coros";
2332	$_->cancel for values %EXT_CORO;	3326	$_->cancel for values %EXT_CORO;
2333	%EXT_CORO = ();	3327	%EXT_CORO = ();
2334		3328
2335	warn "remove commands";	3329	warn "removing commands";
2336	%COMMAND = ();	3330	%COMMAND = ();
2337		3331
2338	warn "remove ext commands";	3332	warn "removing ext/exti commands";
2339	%EXTCMD = ();	3333	%EXTCMD = ();
		3334	%EXTICMD = ();
2340		3335
2341	warn "unload/nuke all extensions";	3336	warn "unloading/nuking all extensions";
2342	for my $pkg (@EXTS) {	3337	for my $pkg (@EXTS) {
2343	warn "... unloading $pkg";	3338	warn "... unloading $pkg";
2344		3339
2345	if (my $cb = $pkg->can ("unload")) {	3340	if (my $cb = $pkg->can ("unload")) {
2346	eval {	3341	eval {
…		…
2351		3346
2352	warn "... nuking $pkg";	3347	warn "... nuking $pkg";
2353	Symbol::delete_package $pkg;	3348	Symbol::delete_package $pkg;
2354	}	3349	}
2355		3350
2356	warn "unload all perl modules loaded from $LIBDIR";	3351	warn "unloading all perl modules loaded from $LIBDIR";
2357	while (my ($k, $v) = each %INC) {	3352	while (my ($k, $v) = each %INC) {
2358	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3353	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2359		3354
2360	warn "removing <$k>";	3355	warn "... unloading $k";
2361	delete $INC{$k};	3356	delete $INC{$k};
2362		3357
2363	$k =~ s/\.pm$//;	3358	$k =~ s/\.pm$//;
2364	$k =~ s/\//::/g;	3359	$k =~ s/\//::/g;
2365		3360
…		…
2368	}	3363	}
2369		3364
2370	Symbol::delete_package $k;	3365	Symbol::delete_package $k;
2371	}	3366	}
2372		3367
2373	warn "get rid of safe::, as good as possible";	3368	warn "getting rid of safe::, as good as possible";
2374	Symbol::delete_package "safe::$_"	3369	Symbol::delete_package "safe::$_"
2375	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3370	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2376		3371
2377	warn "unload cf.pm \"a bit\"";	3372	warn "unloading cf.pm \"a bit\"";
2378	delete $INC{"cf.pm"};	3373	delete $INC{"cf.pm"};
		3374	delete $INC{"cf/pod.pm"};
2379		3375
2380	# don't, removes xs symbols, too,	3376	# don't, removes xs symbols, too,
2381	# and global variables created in xs	3377	# and global variables created in xs
2382	#Symbol::delete_package __PACKAGE__;	3378	#Symbol::delete_package __PACKAGE__;
2383		3379
		3380	warn "unload completed, starting to reload now";
		3381
2384	warn "reloading cf.pm";	3382	warn "reloading cf.pm";
2385	require cf;	3383	require cf;
2386	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3384	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2387		3385
2388	warn "load config and database again";	3386	warn "loading config and database again";
2389	cf::cfg_load;	3387	cf::reload_config;
2390	cf::db_load;
2391		3388
2392	warn "load extensions";	3389	warn "loading extensions";
2393	cf::load_extensions;	3390	cf::load_extensions;
2394		3391
2395	warn "reattach attachments to objects/players";	3392	warn "reattaching attachments to objects/players";
2396	_global_reattach;	3393	_global_reattach; # objects, sockets
2397	warn "reattach attachments to maps";	3394	warn "reattaching attachments to maps";
2398	reattach $_ for values %MAP;	3395	reattach $_ for values %MAP;
2399	};	3396	warn "reattaching attachments to players";
		3397	reattach $_ for values %PLAYER;
2400		3398
2401	if ($@) {	3399	warn "leaving sync_job";
		3400
		3401	1
		3402	} or do {
2402	warn $@;	3403	warn $@;
2403	warn "error while reloading, exiting.";	3404	warn "error while reloading, exiting.";
2404	exit 1;	3405	exit 1;
2405	}	3406	};
2406		3407
2407	warn "reloaded";	3408	warn "reloaded";
2408	};	3409	};
2409		3410
2410	#############################################################################	3411	our $RELOAD_WATCHER; # used only during reload
2411		3412
2412	unless ($LINK_MAP) {	3413	sub reload_perl() {
2413	$LINK_MAP = cf::map::new;	3414	# doing reload synchronously and two reloads happen back-to-back,
		3415	# coro crashes during coro_state_free->destroy here.
2414		3416
2415	$LINK_MAP->width (41);	3417	$RELOAD_WATCHER ||= Event->timer (
2416	$LINK_MAP->height (41);	3418	reentrant => 0,
2417	$LINK_MAP->alloc;
2418	$LINK_MAP->path ("{link}");
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,	3419	after => 0,
		3420	data => WF_AUTOCANCEL,
2425	cb => sub {	3421	cb => sub {
2426	$_[0]->w->cancel;	3422	do_reload_perl;
2427		3423	undef $RELOAD_WATCHER;
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	});	3424	},
2446		3425	);
2447	$LINK_MAP->{deny_save} = 1;
2448	$LINK_MAP->{deny_reset} = 1;
2449
2450	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2451	}	3426	}
2452		3427
2453	register_command "reload" => sub {	3428	register_command "reload" => sub {
2454	my ($who, $arg) = @_;	3429	my ($who, $arg) = @_;
2455		3430
2456	if ($who->flag (FLAG_WIZ)) {	3431	if ($who->flag (FLAG_WIZ)) {
2457	$who->message ("start of reload.");
2458	reload;
2459	$who->message ("end of reload.");	3432	$who->message ("reloading server.");
		3433	async { reload_perl };
2460	}	3434	}
2461	};	3435	};
2462		3436
2463	unshift @INC, $LIBDIR;	3437	unshift @INC, $LIBDIR;
		3438
		3439	my $bug_warning = 0;
		3440
		3441	our @WAIT_FOR_TICK;
		3442	our @WAIT_FOR_TICK_BEGIN;
		3443
		3444	sub wait_for_tick {
		3445	return unless $TICK_WATCHER->is_active;
		3446	return if $Coro::current == $Coro::main;
		3447
		3448	my $signal = new Coro::Signal;
		3449	push @WAIT_FOR_TICK, $signal;
		3450	$signal->wait;
		3451	}
		3452
		3453	sub wait_for_tick_begin {
		3454	return unless $TICK_WATCHER->is_active;
		3455	return if $Coro::current == $Coro::main;
		3456
		3457	my $signal = new Coro::Signal;
		3458	push @WAIT_FOR_TICK_BEGIN, $signal;
		3459	$signal->wait;
		3460	}
2464		3461
2465	$TICK_WATCHER = Event->timer (	3462	$TICK_WATCHER = Event->timer (
2466	reentrant => 0,	3463	reentrant => 0,
		3464	parked => 1,
2467	prio => 0,	3465	prio => 0,
2468	at => $NEXT_TICK || $TICK,	3466	at => $NEXT_TICK || $TICK,
2469	data => WF_AUTOCANCEL,	3467	data => WF_AUTOCANCEL,
2470	cb => sub {	3468	cb => sub {
		3469	if ($Coro::current != $Coro::main) {
		3470	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3471	unless ++$bug_warning > 10;
		3472	return;
		3473	}
		3474
		3475	$NOW = $tick_start = Event::time;
		3476
2471	cf::server_tick; # one server iteration	3477	cf::server_tick; # one server iteration
		3478
2472	$RUNTIME += $TICK;	3479	$RUNTIME += $TICK;
2473	$NEXT_TICK += $TICK;	3480	$NEXT_TICK += $TICK;
2474		3481
2475	$WAIT_FOR_TICK->broadcast;	3482	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2476	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3483	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3484	Coro::async_pool {
		3485	write_runtime
		3486	or warn "ERROR: unable to write runtime file: $!";
		3487	};
		3488	}
		3489
		3490	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3491	$sig->send;
		3492	}
		3493	while (my $sig = shift @WAIT_FOR_TICK) {
		3494	$sig->send;
		3495	}
		3496
		3497	$NOW = Event::time;
2477		3498
2478	# if we are delayed by four ticks or more, skip them all	3499	# if we are delayed by four ticks or more, skip them all
2479	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3500	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2480		3501
2481	$TICK_WATCHER->at ($NEXT_TICK);	3502	$TICK_WATCHER->at ($NEXT_TICK);
2482	$TICK_WATCHER->start;	3503	$TICK_WATCHER->start;
		3504
		3505	$LOAD = ($NOW - $tick_start) / $TICK;
		3506	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3507
		3508	_post_tick;
2483	},	3509	},
2484	);	3510	);
2485		3511
		3512	{
		3513	BDB::min_parallel 8;
2486	IO::AIO::max_poll_time $TICK * 0.2;	3514	BDB::max_poll_time $TICK * 0.1;
2487		3515	$BDB_POLL_WATCHER = Event->io (
2488	Event->io (	3516	reentrant => 0,
2489	fd => IO::AIO::poll_fileno,	3517	fd => BDB::poll_fileno,
2490	poll => 'r',	3518	poll => 'r',
2491	prio => 5,	3519	prio => 0,
2492	data => WF_AUTOCANCEL,
2493	cb => \&IO::AIO::poll_cb,
2494	);
2495
2496	Event->timer (
2497	data => WF_AUTOCANCEL,	3520	data => WF_AUTOCANCEL,
		3521	cb => \&BDB::poll_cb,
		3522	);
		3523
		3524	BDB::set_sync_prepare {
		3525	my $status;
		3526	my $current = $Coro::current;
		3527	(
		3528	sub {
		3529	$status = $!;
		3530	$current->ready; undef $current;
		3531	},
		3532	sub {
		3533	Coro::schedule while defined $current;
		3534	$! = $status;
		3535	},
		3536	)
		3537	};
		3538
		3539	unless ($DB_ENV) {
		3540	$DB_ENV = BDB::db_env_create;
		3541	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3542	| BDB::LOG_AUTOREMOVE, 1);
		3543	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3544	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3545
		3546	cf::sync_job {
		3547	eval {
		3548	BDB::db_env_open
		3549	$DB_ENV,
		3550	$BDBDIR,
		3551	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3552	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3553	0666;
		3554
		3555	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3556	};
		3557
		3558	cf::cleanup "db_env_open(db): $@" if $@;
		3559	};
		3560	}
		3561
		3562	$BDB_DEADLOCK_WATCHER = Event->timer (
2498	after => 0,	3563	after => 3,
2499	interval => 10,	3564	interval => 1,
		3565	hard => 1,
		3566	prio => 0,
		3567	data => WF_AUTOCANCEL,
2500	cb => sub {	3568	cb => sub {
2501	(Coro::unblock_sub {	3569	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2502	write_runtime	3570	},
2503	or warn "ERROR: unable to write runtime file: $!";	3571	);
		3572	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3573	after => 11,
		3574	interval => 60,
		3575	hard => 1,
		3576	prio => 0,
		3577	data => WF_AUTOCANCEL,
		3578	cb => sub {
		3579	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3580	},
		3581	);
		3582	$BDB_TRICKLE_WATCHER = Event->timer (
		3583	after => 5,
		3584	interval => 10,
		3585	hard => 1,
		3586	prio => 0,
		3587	data => WF_AUTOCANCEL,
		3588	cb => sub {
		3589	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3590	},
		3591	);
		3592	}
		3593
		3594	{
		3595	IO::AIO::min_parallel 8;
		3596
		3597	undef $Coro::AIO::WATCHER;
		3598	IO::AIO::max_poll_time $TICK * 0.1;
		3599	$AIO_POLL_WATCHER = Event->io (
		3600	reentrant => 0,
		3601	data => WF_AUTOCANCEL,
		3602	fd => IO::AIO::poll_fileno,
		3603	poll => 'r',
		3604	prio => 6,
		3605	cb => \&IO::AIO::poll_cb,
		3606	);
		3607	}
		3608
		3609	my $_log_backtrace;
		3610
		3611	sub _log_backtrace {
		3612	my ($msg, @addr) = @_;
		3613
		3614	$msg =~ s/\n//;
		3615
		3616	# limit the # of concurrent backtraces
		3617	if ($_log_backtrace < 2) {
		3618	++$_log_backtrace;
		3619	async {
		3620	my @bt = fork_call {
		3621	@addr = map { sprintf "%x", $_ } @addr;
		3622	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3623	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3624	or die "addr2line: $!";
		3625
		3626	my @funcs;
		3627	my @res = <$fh>;
		3628	chomp for @res;
		3629	while (@res) {
		3630	my ($func, $line) = splice @res, 0, 2, ();
		3631	push @funcs, "[$func] $line";
		3632	}
		3633
		3634	@funcs
		3635	};
		3636
		3637	LOG llevInfo, "[ABT] $msg\n";
		3638	LOG llevInfo, "[ABT] $_\n" for @bt;
		3639	--$_log_backtrace;
2504	})->();	3640	};
		3641	} else {
		3642	LOG llevInfo, "[ABT] $msg\n";
		3643	LOG llevInfo, "[ABT] [suppressed]\n";
2505	},	3644	}
2506	);	3645	}
		3646
		3647	# load additional modules
		3648	use cf::pod;
2507		3649
2508	END { cf::emergency_save }	3650	END { cf::emergency_save }
2509		3651
2510	1	3652	1
2511		3653

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