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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 1.371 by root, Thu Sep 13 16:16:01 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
…		…
879	);	1026	);
880		1027
881	sub object_freezer_save {	1028	sub object_freezer_save {
882	my ($filename, $rdata, $objs) = @_;	1029	my ($filename, $rdata, $objs) = @_;
883		1030
		1031	my $guard = cf::lock_acquire "io";
		1032
884	sync_job {	1033	sync_job {
885	if (length $$rdata) {	1034	if (length $$rdata) {
		1035	utf8::decode (my $decname = $filename);
886	warn sprintf "saving %s (%d,%d)\n",	1036	warn sprintf "saving %s (%d,%d)\n",
887	$filename, length $$rdata, scalar @$objs;	1037	$decname, length $$rdata, scalar @$objs;
888		1038
889	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1039	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
890	chmod SAVE_MODE, $fh;	1040	chmod SAVE_MODE, $fh;
891	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1041	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
892	aio_fsync $fh;	1042	aio_fsync $fh if $cf::USE_FSYNC;
893	close $fh;	1043	close $fh;
894		1044
895	if (@$objs) {	1045	if (@$objs) {
896	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1046	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
897	chmod SAVE_MODE, $fh;	1047	chmod SAVE_MODE, $fh;
898	my $data = Storable::nfreeze { version => 1, objs => $objs };	1048	my $data = Storable::nfreeze { version => 1, objs => $objs };
899	aio_write $fh, 0, (length $data), $data, 0;	1049	aio_write $fh, 0, (length $data), $data, 0;
900	aio_fsync $fh;	1050	aio_fsync $fh if $cf::USE_FSYNC;
901	close $fh;	1051	close $fh;
902	aio_rename "$filename.pst~", "$filename.pst";	1052	aio_rename "$filename.pst~", "$filename.pst";
903	}	1053	}
904	} else {	1054	} else {
905	aio_unlink "$filename.pst";	1055	aio_unlink "$filename.pst";
…		…
911	}	1061	}
912	} else {	1062	} else {
913	aio_unlink $filename;	1063	aio_unlink $filename;
914	aio_unlink "$filename.pst";	1064	aio_unlink "$filename.pst";
915	}	1065	}
916	}	1066	};
		1067
		1068	undef $guard;
917	}	1069	}
918		1070
919	sub object_freezer_as_string {	1071	sub object_freezer_as_string {
920	my ($rdata, $objs) = @_;	1072	my ($rdata, $objs) = @_;
921		1073
…		…
926		1078
927	sub object_thawer_load {	1079	sub object_thawer_load {
928	my ($filename) = @_;	1080	my ($filename) = @_;
929		1081
930	my ($data, $av);	1082	my ($data, $av);
		1083
		1084	my $guard = cf::lock_acquire "io";
931		1085
932	(aio_load $filename, $data) >= 0	1086	(aio_load $filename, $data) >= 0
933	or return;	1087	or return;
934		1088
935	unless (aio_stat "$filename.pst") {	1089	unless (aio_stat "$filename.pst") {
936	(aio_load "$filename.pst", $av) >= 0	1090	(aio_load "$filename.pst", $av) >= 0
937	or return;	1091	or return;
		1092
		1093	undef $guard;
938	$av = eval { (Storable::thaw $av)->{objs} };	1094	$av = eval { (Storable::thaw $av)->{objs} };
939	}	1095	}
940		1096
		1097	utf8::decode (my $decname = $filename);
941	warn sprintf "loading %s (%d)\n",	1098	warn sprintf "loading %s (%d,%d)\n",
942	$filename, length $data, scalar @{$av || []};#d#	1099	$decname, length $data, scalar @{$av || []};
		1100
943	return ($data, $av);	1101	($data, $av)
944	}	1102	}
		1103
		1104	=head2 COMMAND CALLBACKS
		1105
		1106	=over 4
		1107
		1108	=cut
945		1109
946	#############################################################################	1110	#############################################################################
947	# command handling &c	1111	# command handling &c
948		1112
949	=item cf::register_command $name => \&callback($ob,$args);	1113	=item cf::register_command $name => \&callback($ob,$args);
…		…
962	push @{ $COMMAND{$name} }, [$caller, $cb];	1126	push @{ $COMMAND{$name} }, [$caller, $cb];
963	}	1127	}
964		1128
965	=item cf::register_extcmd $name => \&callback($pl,$packet);	1129	=item cf::register_extcmd $name => \&callback($pl,$packet);
966		1130
967	Register a callbackf ro execution when the client sends an extcmd packet.	1131	Register a callback for execution when the client sends an (synchronous)
		1132	extcmd packet. Ext commands will be processed in the order they are
		1133	received by the server, like other user commands. The first argument is
		1134	the logged-in player. Ext commands can only be processed after a player
		1135	has logged in successfully.
968		1136
969	If the callback returns something, it is sent back as if reply was being	1137	If the callback returns something, it is sent back as if reply was being
970	called.	1138	called.
971		1139
		1140	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1141
		1142	Register a callback for execution when the client sends an (asynchronous)
		1143	exticmd packet. Exti commands are processed by the server as soon as they
		1144	are received, i.e. out of order w.r.t. other commands. The first argument
		1145	is a client socket. Exti commands can be received anytime, even before
		1146	log-in.
		1147
		1148	If the callback returns something, it is sent back as if reply was being
		1149	called.
		1150
972	=cut	1151	=cut
973		1152
974	sub register_extcmd {	1153	sub register_extcmd {
975	my ($name, $cb) = @_;	1154	my ($name, $cb) = @_;
976		1155
977	$EXTCMD{$name} = $cb;	1156	$EXTCMD{$name} = $cb;
		1157	}
		1158
		1159	sub register_exticmd {
		1160	my ($name, $cb) = @_;
		1161
		1162	$EXTICMD{$name} = $cb;
978	}	1163	}
979		1164
980	cf::player->attach (	1165	cf::player->attach (
981	on_command => sub {	1166	on_command => sub {
982	my ($pl, $name, $params) = @_;	1167	my ($pl, $name, $params) = @_;
…		…
991	cf::override;	1176	cf::override;
992	},	1177	},
993	on_extcmd => sub {	1178	on_extcmd => sub {
994	my ($pl, $buf) = @_;	1179	my ($pl, $buf) = @_;
995		1180
996	my $msg = eval { from_json $buf };	1181	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
997		1182
998	if (ref $msg) {	1183	if (ref $msg) {
		1184	my ($type, $reply, @payload) =
		1185	"ARRAY" eq ref $msg
		1186	? @$msg
		1187	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1188
		1189	my @reply;
		1190
999	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1191	if (my $cb = $EXTCMD{$type}) {
1000	if (my %reply = $cb->($pl, $msg)) {	1192	@reply = $cb->($pl, @payload);
1001	$pl->ext_reply ($msg->{msgid}, %reply);
1002	}
1003	}	1193	}
		1194
		1195	$pl->ext_reply ($reply, @reply)
		1196	if $reply;
		1197
1004	} else {	1198	} else {
1005	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1199	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
1006	}	1200	}
1007		1201
1008	cf::override;	1202	cf::override;
1009	},	1203	},
1010	);	1204	);
1011		1205
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 {	1206	sub load_extensions {
		1207	cf::sync_job {
		1208	my %todo;
		1209
1040	for my $ext (<$LIBDIR/*.ext>) {	1210	for my $path (<$LIBDIR/*.ext>) {
1041	next unless -r $ext;	1211	next unless -r $path;
1042	eval {	1212
1043	load_extension $ext;	1213	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1214	my $base = $1;
		1215	my $pkg = $1;
		1216	$pkg =~ s/[^[:word:]]/_/g;
		1217	$pkg = "ext::$pkg";
		1218
		1219	open my $fh, "<:utf8", $path
		1220	or die "$path: $!";
		1221
		1222	my $source = do { local $/; <$fh> };
		1223
		1224	my %ext = (
		1225	path => $path,
		1226	base => $base,
		1227	pkg => $pkg,
		1228	);
		1229
		1230	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1231	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1232
		1233	$ext{source} =
		1234	"package $pkg; use strict; use utf8;\n"
		1235	. "#line 1 \"$path\"\n{\n"
		1236	. $source
		1237	. "\n};\n1";
		1238
		1239	$todo{$base} = \%ext;
		1240	}
		1241
		1242	my %done;
		1243	while (%todo) {
		1244	my $progress;
		1245
		1246	while (my ($k, $v) = each %todo) {
		1247	for (split /,\s*/, $v->{meta}{depends}) {
		1248	goto skip
		1249	unless exists $done{$_};
		1250	}
		1251
		1252	warn "... loading '$k' into '$v->{pkg}'\n";
		1253
		1254	unless (eval $v->{source}) {
		1255	my $msg = $@ ? "$v->{path}: $@\n"
		1256	: "$v->{base}: extension inactive.\n";
		1257
		1258	if (exists $v->{meta}{mandatory}) {
		1259	warn $msg;
		1260	warn "mandatory extension failed to load, exiting.\n";
		1261	exit 1;
		1262	}
		1263
		1264	warn $msg;
		1265	}
		1266
		1267	$done{$k} = delete $todo{$k};
		1268	push @EXTS, $v->{pkg};
		1269	$progress = 1;
1044	1	1270	}
1045	} or warn "$ext not loaded: $@";	1271
		1272	skip:
		1273	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1274	unless $progress;
		1275	}
1046	}	1276	};
1047	}	1277	}
1048		1278
1049	#############################################################################	1279	#############################################################################
1050	# load/save/clean perl data associated with a map
1051		1280
1052	*cf::mapsupport::on_clean = sub {	1281	=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		1282
1065	=head2 CORE EXTENSIONS	1283	=head2 CORE EXTENSIONS
1066		1284
1067	Functions and methods that extend core crossfire objects.	1285	Functions and methods that extend core crossfire objects.
1068		1286
…		…
1074		1292
1075	=head3 cf::player	1293	=head3 cf::player
1076		1294
1077	=over 4	1295	=over 4
1078		1296
		1297	=item cf::player::num_playing
		1298
		1299	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1300
		1301	=cut
		1302
		1303	sub num_playing {
		1304	scalar grep
		1305	$_->ob->map
		1306	&& !$_->hidden
		1307	&& !$_->ob->flag (cf::FLAG_WIZ),
		1308	cf::player::list
		1309	}
		1310
1079	=item cf::player::find $login	1311	=item cf::player::find $login
1080		1312
1081	Returns the given player object, loading it if necessary (might block).	1313	Returns the given player object, loading it if necessary (might block).
1082		1314
1083	=cut	1315	=cut
1084		1316
1085	sub playerdir($) {	1317	sub playerdir($) {
1086	cf::localdir	1318	"$PLAYERDIR/"
1087	. "/"
1088	. cf::playerdir
1089	. "/"
1090	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1319	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1091	}	1320	}
1092		1321
1093	sub path($) {	1322	sub path($) {
1094	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1323	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1095		1324
1096	(playerdir $login) . "/$login.pl"	1325	(playerdir $login) . "/playerdata"
1097	}	1326	}
1098		1327
1099	sub find_active($) {	1328	sub find_active($) {
1100	$cf::PLAYER{$_[0]}	1329	$cf::PLAYER{$_[0]}
1101	and $cf::PLAYER{$_[0]}->active	1330	and $cf::PLAYER{$_[0]}->active
…		…
1104		1333
1105	sub exists($) {	1334	sub exists($) {
1106	my ($login) = @_;	1335	my ($login) = @_;
1107		1336
1108	$cf::PLAYER{$login}	1337	$cf::PLAYER{$login}
1109	or cf::sync_job { !aio_stat $login }	1338	or cf::sync_job { !aio_stat path $login }
1110	}	1339	}
1111		1340
1112	sub find($) {	1341	sub find($) {
1113	return $cf::PLAYER{$_[0]} || do {	1342	return $cf::PLAYER{$_[0]} || do {
1114	my $login = $_[0];	1343	my $login = $_[0];
1115		1344
1116	my $guard = cf::lock_acquire "user_find:$login";	1345	my $guard = cf::lock_acquire "user_find:$login";
1117		1346
1118	$cf::PLAYER{$_[0]} || do {	1347	$cf::PLAYER{$_[0]} || do {
1119	my $pl = load_pl path $login	1348	# rename old playerfiles to new ones
		1349	#TODO: remove when no longer required
		1350	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1351	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1352	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1353	aio_unlink +(playerdir $login) . "/$login.pl";
		1354
		1355	my $f = new_from_file cf::object::thawer path $login
1120	or return;	1356	or return;
		1357
		1358	$f->next;
		1359	my $pl = cf::player::load_pl $f
		1360	or return;
		1361	local $cf::PLAYER_LOADING{$login} = $pl;
		1362	$f->resolve_delayed_derefs;
1121	$cf::PLAYER{$login} = $pl	1363	$cf::PLAYER{$login} = $pl
1122	}	1364	}
1123	}	1365	}
1124	}	1366	}
1125		1367
…		…
1135		1377
1136	aio_mkdir playerdir $pl, 0770;	1378	aio_mkdir playerdir $pl, 0770;
1137	$pl->{last_save} = $cf::RUNTIME;	1379	$pl->{last_save} = $cf::RUNTIME;
1138		1380
1139	$pl->save_pl ($path);	1381	$pl->save_pl ($path);
1140	Coro::cede;	1382	cf::cede_to_tick;
1141	}	1383	}
1142		1384
1143	sub new($) {	1385	sub new($) {
1144	my ($login) = @_;	1386	my ($login) = @_;
1145		1387
…		…
1151	$cf::PLAYER{$login} = $self;	1393	$cf::PLAYER{$login} = $self;
1152		1394
1153	$self	1395	$self
1154	}	1396	}
1155		1397
		1398	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1399
		1400	=cut
		1401
		1402	sub send_msg {
		1403	my $ns = shift->ns
		1404	or return;
		1405	$ns->send_msg (@_);
		1406	}
		1407
1156	=item $pl->quit_character	1408	=item $pl->quit_character
1157		1409
1158	Nukes the player without looking back. If logged in, the connection will	1410	Nukes the player without looking back. If logged in, the connection will
1159	be destroyed. May block for a long time.	1411	be destroyed. May block for a long time.
1160		1412
1161	=cut	1413	=cut
1162		1414
1163	sub quit_character {	1415	sub quit_character {
1164	my ($pl) = @_;	1416	my ($pl) = @_;
		1417
		1418	my $name = $pl->ob->name;
1165		1419
1166	$pl->{deny_save} = 1;	1420	$pl->{deny_save} = 1;
1167	$pl->password ("*"); # this should lock out the player until we nuked the dir	1421	$pl->password ("*"); # this should lock out the player until we nuked the dir
1168		1422
1169	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1423	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1174	my $path = playerdir $pl;	1428	my $path = playerdir $pl;
1175	my $temp = "$path~$cf::RUNTIME~deleting~";	1429	my $temp = "$path~$cf::RUNTIME~deleting~";
1176	aio_rename $path, $temp;	1430	aio_rename $path, $temp;
1177	delete $cf::PLAYER{$pl->ob->name};	1431	delete $cf::PLAYER{$pl->ob->name};
1178	$pl->destroy;	1432	$pl->destroy;
		1433
		1434	my $prefix = qr<^~\Q$name\E/>;
		1435
		1436	# nuke player maps
		1437	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1438
1179	IO::AIO::aio_rmtree $temp;	1439	IO::AIO::aio_rmtree $temp;
		1440	}
		1441
		1442	=item $pl->kick
		1443
		1444	Kicks a player out of the game. This destroys the connection.
		1445
		1446	=cut
		1447
		1448	sub kick {
		1449	my ($pl, $kicker) = @_;
		1450
		1451	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1452	$pl->killer ("kicked");
		1453	$pl->ns->destroy;
1180	}	1454	}
1181		1455
1182	=item cf::player::list_logins	1456	=item cf::player::list_logins
1183		1457
1184	Returns am arrayref of all valid playernames in the system, can take a	1458	Returns am arrayref of all valid playernames in the system, can take a
1185	while and may block, so not sync_job-capable, ever.	1459	while and may block, so not sync_job-capable, ever.
1186		1460
1187	=cut	1461	=cut
1188		1462
1189	sub list_logins {	1463	sub list_logins {
1190	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1464	my $dirs = aio_readdir $PLAYERDIR
1191	or return [];	1465	or return [];
1192		1466
1193	my @logins;	1467	my @logins;
1194		1468
1195	for my $login (@$dirs) {	1469	for my $login (@$dirs) {
		1470	my $path = path $login;
		1471
		1472	# a .pst is a dead give-away for a valid player
		1473	unless (-e "$path.pst") {
1196	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1474	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1197	aio_read $fh, 0, 512, my $buf, 0 or next;	1475	aio_read $fh, 0, 512, my $buf, 0 or next;
1198	$buf !~ /^password -------------$/m or next; # official not-valid tag	1476	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1477	}
1199		1478
1200	utf8::decode $login;	1479	utf8::decode $login;
1201	push @logins, $login;	1480	push @logins, $login;
1202	}	1481	}
1203		1482
1204	\@logins	1483	\@logins
1205	}	1484	}
1206		1485
1207	=item $player->maps	1486	=item $player->maps
1208		1487
1209	Returns an arrayref of cf::path's of all maps that are private for this	1488	Returns an arrayref of map paths that are private for this
1210	player. May block.	1489	player. May block.
1211		1490
1212	=cut	1491	=cut
1213		1492
1214	sub maps($) {	1493	sub maps($) {
1215	my ($pl) = @_;	1494	my ($pl) = @_;
		1495
		1496	$pl = ref $pl ? $pl->ob->name : $pl;
1216		1497
1217	my $files = aio_readdir playerdir $pl	1498	my $files = aio_readdir playerdir $pl
1218	or return;	1499	or return;
1219		1500
1220	my @paths;	1501	my @paths;
…		…
1222	for (@$files) {	1503	for (@$files) {
1223	utf8::decode $_;	1504	utf8::decode $_;
1224	next if /\.(?:pl|pst)$/;	1505	next if /\.(?:pl|pst)$/;
1225	next unless /^$PATH_SEP/o;	1506	next unless /^$PATH_SEP/o;
1226		1507
1227	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1508	push @paths, cf::map::normalise "~$pl/$_";
1228	}	1509	}
1229		1510
1230	\@paths	1511	\@paths
1231	}	1512	}
1232		1513
		1514	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1515
		1516	Expand crossfire pod fragments into protocol xml.
		1517
		1518	=cut
		1519
		1520	sub expand_cfpod {
		1521	((my $self), (local $_)) = @_;
		1522
		1523	# escape & and <
		1524	s/&/&amp;/g;
		1525	s/(?<![BIUGHT])</&lt;/g;
		1526
		1527	# this is buggy, it needs to properly take care of nested <'s
		1528
		1529	1 while
		1530	# replace B<>, I<>, U<> etc.
		1531	s/B<([^\>]*)>/<b>$1<\/b>/
		1532	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1533	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1534	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1535	# replace G<male|female> tags
		1536	|| s{G<([^>|]*)\|([^>]*)>}{
		1537	$self->gender ? $2 : $1
		1538	}ge
		1539	# replace H<hint text>
		1540	|| s{H<([^\>]*)>}
		1541	{
		1542	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1543	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1544	"")
		1545	[$self->{hintmode}]
		1546	}ge;
		1547
		1548	# create single paragraphs (very hackish)
		1549	s/(?<=\S)\n(?=\w)/ /g;
		1550
		1551	# compress some whitespace
		1552	s/\s+\n/\n/g; # ws line-ends
		1553	s/\n\n+/\n/g; # double lines
		1554	s/^\n+//; # beginning lines
		1555	s/\n+$//; # ending lines
		1556
		1557	$_
		1558	}
		1559
		1560	sub hintmode {
		1561	$_[0]{hintmode} = $_[1] if @_ > 1;
		1562	$_[0]{hintmode}
		1563	}
		1564
1233	=item $player->ext_reply ($msgid, $msgtype, %msg)	1565	=item $player->ext_reply ($msgid, @msg)
1234		1566
1235	Sends an ext reply to the player.	1567	Sends an ext reply to the player.
1236		1568
1237	=cut	1569	=cut
1238		1570
1239	sub ext_reply($$$%) {	1571	sub ext_reply($$@) {
1240	my ($self, $id, %msg) = @_;	1572	my ($self, $id, @msg) = @_;
1241		1573
1242	$msg{msgid} = $id;	1574	$self->ns->ext_reply ($id, @msg)
1243
1244	$self->send ("ext " . cf::to_json \%msg);
1245	}	1575	}
1246		1576
1247	package cf;	1577	=item $player->ext_msg ($type, @msg)
		1578
		1579	Sends an ext event to the client.
		1580
		1581	=cut
		1582
		1583	sub ext_msg($$@) {
		1584	my ($self, $type, @msg) = @_;
		1585
		1586	$self->ns->ext_msg ($type, @msg);
		1587	}
		1588
		1589	=head3 cf::region
		1590
		1591	=over 4
		1592
		1593	=cut
		1594
		1595	package cf::region;
		1596
		1597	=item cf::region::find_by_path $path
		1598
		1599	Tries to decuce the likely region for a map knowing only its path.
		1600
		1601	=cut
		1602
		1603	sub find_by_path($) {
		1604	my ($path) = @_;
		1605
		1606	my ($match, $specificity);
		1607
		1608	for my $region (list) {
		1609	if ($region->{match} && $path =~ $region->{match}) {
		1610	($match, $specificity) = ($region, $region->specificity)
		1611	if $region->specificity > $specificity;
		1612	}
		1613	}
		1614
		1615	$match
		1616	}
1248		1617
1249	=back	1618	=back
1250
1251		1619
1252	=head3 cf::map	1620	=head3 cf::map
1253		1621
1254	=over 4	1622	=over 4
1255		1623
…		…
1258	package cf::map;	1626	package cf::map;
1259		1627
1260	use Fcntl;	1628	use Fcntl;
1261	use Coro::AIO;	1629	use Coro::AIO;
1262		1630
		1631	use overload
		1632	'""' => \&as_string,
		1633	fallback => 1;
		1634
1263	our $MAX_RESET = 3600;	1635	our $MAX_RESET = 3600;
1264	our $DEFAULT_RESET = 3000;	1636	our $DEFAULT_RESET = 3000;
1265		1637
1266	sub generate_random_map {	1638	sub generate_random_map {
1267	my ($path, $rmp) = @_;	1639	my ($self, $rmp) = @_;
1268
1269	# mit "rum" bekleckern, nicht	1640	# mit "rum" bekleckern, nicht
1270	cf::map::_create_random_map	1641	$self->_create_random_map (
1271	$path,
1272	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1642	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1273	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1643	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1274	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1644	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1275	$rmp->{exit_on_final_map},	1645	$rmp->{exit_on_final_map},
1276	$rmp->{xsize}, $rmp->{ysize},	1646	$rmp->{xsize}, $rmp->{ysize},
1277	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1647	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1278	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1648	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1279	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1649	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1280	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1650	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1281	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1651	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1282	(cf::region::find $rmp->{region})	1652	(cf::region::find $rmp->{region}), $rmp->{custom}
		1653	)
		1654	}
		1655
		1656	=item cf::map->register ($regex, $prio)
		1657
		1658	Register a handler for the map path matching the given regex at the
		1659	givne priority (higher is better, built-in handlers have priority 0, the
		1660	default).
		1661
		1662	=cut
		1663
		1664	sub register {
		1665	my (undef, $regex, $prio) = @_;
		1666	my $pkg = caller;
		1667
		1668	no strict;
		1669	push @{"$pkg\::ISA"}, __PACKAGE__;
		1670
		1671	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1672	}
		1673
		1674	# also paths starting with '/'
		1675	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1676
		1677	sub thawer_merge {
		1678	my ($self, $merge) = @_;
		1679
		1680	# we have to keep some variables in memory intact
		1681	local $self->{path};
		1682	local $self->{load_path};
		1683
		1684	$self->SUPER::thawer_merge ($merge);
		1685	}
		1686
		1687	sub normalise {
		1688	my ($path, $base) = @_;
		1689
		1690	$path = "$path"; # make sure its a string
		1691
		1692	$path =~ s/\.map$//;
		1693
		1694	# map plan:
		1695	#
		1696	# /! non-realised random map exit (special hack!)
		1697	# {... are special paths that are not being touched
		1698	# ?xxx/... are special absolute paths
		1699	# ?random/... random maps
		1700	# /... normal maps
		1701	# ~user/... per-player map of a specific user
		1702
		1703	$path =~ s/$PATH_SEP/\//go;
		1704
		1705	# treat it as relative path if it starts with
		1706	# something that looks reasonable
		1707	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1708	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1709
		1710	$base =~ s{[^/]+/?$}{};
		1711	$path = "$base/$path";
		1712	}
		1713
		1714	for ($path) {
		1715	redo if s{//}{/};
		1716	redo if s{/\.?/}{/};
		1717	redo if s{/[^/]+/\.\./}{/};
		1718	}
		1719
		1720	$path
		1721	}
		1722
		1723	sub new_from_path {
		1724	my (undef, $path, $base) = @_;
		1725
		1726	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1727
		1728	$path = normalise $path, $base;
		1729
		1730	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1731	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1732	my $self = bless cf::map::new, $pkg;
		1733	$self->{path} = $path; $self->path ($path);
		1734	$self->init; # pass $1 etc.
		1735	return $self;
		1736	}
		1737	}
		1738
		1739	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1740	()
		1741	}
		1742
		1743	sub init {
		1744	my ($self) = @_;
		1745
		1746	$self
		1747	}
		1748
		1749	sub as_string {
		1750	my ($self) = @_;
		1751
		1752	"$self->{path}"
		1753	}
		1754
		1755	# the displayed name, this is a one way mapping
		1756	sub visible_name {
		1757	&as_string
		1758	}
		1759
		1760	# the original (read-only) location
		1761	sub load_path {
		1762	my ($self) = @_;
		1763
		1764	"$MAPDIR/$self->{path}.map"
		1765	}
		1766
		1767	# the temporary/swap location
		1768	sub save_path {
		1769	my ($self) = @_;
		1770
		1771	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1772	"$TMPDIR/$path.map"
		1773	}
		1774
		1775	# the unique path, undef == no special unique path
		1776	sub uniq_path {
		1777	my ($self) = @_;
		1778
		1779	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1780	"$UNIQUEDIR/$path"
1283	}	1781	}
1284		1782
1285	# and all this just because we cannot iterate over	1783	# and all this just because we cannot iterate over
1286	# all maps in C++...	1784	# all maps in C++...
1287	sub change_all_map_light {	1785	sub change_all_map_light {
…		…
1289		1787
1290	$_->change_map_light ($change)	1788	$_->change_map_light ($change)
1291	for grep $_->outdoor, values %cf::MAP;	1789	for grep $_->outdoor, values %cf::MAP;
1292	}	1790	}
1293		1791
		1792	sub decay_objects {
		1793	my ($self) = @_;
		1794
		1795	return if $self->{deny_reset};
		1796
		1797	$self->do_decay_objects;
		1798	}
		1799
		1800	sub unlink_save {
		1801	my ($self) = @_;
		1802
		1803	utf8::encode (my $save = $self->save_path);
		1804	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1805	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1806	}
		1807
1294	sub load_map_header($) {	1808	sub load_header_from($) {
1295	my ($path) = @_;	1809	my ($self, $path) = @_;
1296		1810
1297	utf8::encode $path;	1811	utf8::encode $path;
1298	aio_open $path, O_RDONLY, 0	1812	my $f = new_from_file cf::object::thawer $path
1299	or return;	1813	or return;
1300		1814
1301	my $map = cf::map::new	1815	$self->_load_header ($f)
1302	or return;	1816	or return;
1303		1817
1304	# for better error messages only, will be overwritten later	1818	local $MAP_LOADING{$self->{path}} = $self;
1305	$map->path ($path);	1819	$f->resolve_delayed_derefs;
1306		1820
1307	$map->load_header ($path)	1821	$self->{load_path} = $path;
		1822
		1823	1
		1824	}
		1825
		1826	sub load_header_orig {
		1827	my ($self) = @_;
		1828
		1829	$self->load_header_from ($self->load_path)
		1830	}
		1831
		1832	sub load_header_temp {
		1833	my ($self) = @_;
		1834
		1835	$self->load_header_from ($self->save_path)
		1836	}
		1837
		1838	sub prepare_temp {
		1839	my ($self) = @_;
		1840
		1841	$self->last_access ((delete $self->{last_access})
		1842	|| $cf::RUNTIME); #d#
		1843	# safety
		1844	$self->{instantiate_time} = $cf::RUNTIME
		1845	if $self->{instantiate_time} > $cf::RUNTIME;
		1846	}
		1847
		1848	sub prepare_orig {
		1849	my ($self) = @_;
		1850
		1851	$self->{load_original} = 1;
		1852	$self->{instantiate_time} = $cf::RUNTIME;
		1853	$self->last_access ($cf::RUNTIME);
		1854	$self->instantiate;
		1855	}
		1856
		1857	sub load_header {
		1858	my ($self) = @_;
		1859
		1860	if ($self->load_header_temp) {
		1861	$self->prepare_temp;
		1862	} else {
		1863	$self->load_header_orig
1308	or return;	1864	or return;
		1865	$self->prepare_orig;
		1866	}
1309		1867
1310	$map->{load_path} = $path;	1868	$self->{deny_reset} = 1
		1869	if $self->no_reset;
1311		1870
1312	$map	1871	$self->default_region (cf::region::find_by_path $self->{path})
		1872	unless $self->default_region;
		1873
		1874	1
1313	}	1875	}
1314		1876
1315	sub find;	1877	sub find;
1316	sub find {	1878	sub find {
1317	my ($path, $origin) = @_;	1879	my ($path, $origin) = @_;
1318		1880
1319	#warn "find<$path,$origin>\n";#d#
1320
1321	$path = new cf::path $path, $origin && $origin->path;	1881	$path = normalise $path, $origin && $origin->path;
1322	my $key = $path->as_string;
1323		1882
		1883	cf::lock_wait "map_data:$path";#d#remove
1324	cf::lock_wait "map_find:$key";	1884	cf::lock_wait "map_find:$path";
1325		1885
1326	$cf::MAP{$key} || do {	1886	$cf::MAP{$path} || do {
1327	my $guard = cf::lock_acquire "map_find:$key";	1887	my $guard1 = cf::lock_acquire "map_find:$path";
		1888	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1328		1889
1329	# do it the slow way	1890	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;	1891	or return;
1343		1892
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;	1893	$map->{last_save} = $cf::RUNTIME;
1356		1894
1357	Coro::cede;	1895	$map->load_header
		1896	or return;
1358		1897
1359	if ($map->should_reset) {	1898	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1899	# doing this can freeze the server in a sync job, obviously
		1900	#$cf::WAIT_FOR_TICK->wait;
		1901	undef $guard1;
		1902	undef $guard2;
1360	$map->reset;	1903	$map->reset;
1361	undef $guard;
1362	$map = find $path	1904	return find $path;
1363	or return;
1364	}	1905	}
1365		1906
1366	$cf::MAP{$key} = $map	1907	$cf::MAP{$path} = $map
1367	}	1908	}
1368	}	1909	}
		1910
		1911	sub pre_load { }
		1912	sub post_load { }
1369		1913
1370	sub load {	1914	sub load {
1371	my ($self) = @_;	1915	my ($self) = @_;
1372		1916
		1917	local $self->{deny_reset} = 1; # loading can take a long time
		1918
1373	my $path = $self->{path};	1919	my $path = $self->{path};
		1920
		1921	{
1374	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1922	my $guard = cf::lock_acquire "map_data:$path";
1375		1923
		1924	return unless $self->valid;
1376	return if $self->in_memory != cf::MAP_SWAPPED;	1925	return unless $self->in_memory == cf::MAP_SWAPPED;
1377		1926
1378	$self->in_memory (cf::MAP_LOADING);	1927	$self->in_memory (cf::MAP_LOADING);
1379		1928
1380	$self->alloc;	1929	$self->alloc;
1381	$self->load_objects ($self->{load_path}, 1)	1930
		1931	$self->pre_load;
		1932	cf::cede_to_tick;
		1933
		1934	my $f = new_from_file cf::object::thawer $self->{load_path};
		1935	$f->skip_block;
		1936	$self->_load_objects ($f)
1382	or return;	1937	or return;
1383		1938
1384	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1939	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1385	if delete $self->{load_original};	1940	if delete $self->{load_original};
1386		1941
1387	if (my $uniq = $path->uniq_path) {	1942	if (my $uniq = $self->uniq_path) {
1388	utf8::encode $uniq;	1943	utf8::encode $uniq;
1389	if (aio_open $uniq, O_RDONLY, 0) {	1944	unless (aio_stat $uniq) {
		1945	if (my $f = new_from_file cf::object::thawer $uniq) {
1390	$self->clear_unique_items;	1946	$self->clear_unique_items;
1391	$self->load_objects ($uniq, 0);	1947	$self->_load_objects ($f);
		1948	$f->resolve_delayed_derefs;
		1949	}
1392	}	1950	}
1393	}	1951	}
1394		1952
1395	Coro::cede;	1953	$f->resolve_delayed_derefs;
1396		1954
		1955	cf::cede_to_tick;
1397	# now do the right thing for maps	1956	# now do the right thing for maps
1398	$self->link_multipart_objects;	1957	$self->link_multipart_objects;
1399
1400	if ($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)	1958	$self->difficulty ($self->estimate_difficulty)
1409	unless $self->difficulty;	1959	unless $self->difficulty;
		1960	cf::cede_to_tick;
		1961
		1962	unless ($self->{deny_activate}) {
		1963	$self->decay_objects;
		1964	$self->fix_auto_apply;
		1965	$self->update_buttons;
		1966	cf::cede_to_tick;
		1967	$self->set_darkness_map;
		1968	cf::cede_to_tick;
1410	$self->activate;	1969	$self->activate;
1411	}	1970	}
1412		1971
1413	Coro::cede;	1972	$self->{last_save} = $cf::RUNTIME;
		1973	$self->last_access ($cf::RUNTIME);
1414		1974
1415	$self->in_memory (cf::MAP_IN_MEMORY);	1975	$self->in_memory (cf::MAP_IN_MEMORY);
		1976	}
		1977
		1978	$self->post_load;
		1979	}
		1980
		1981	sub customise_for {
		1982	my ($self, $ob) = @_;
		1983
		1984	return find "~" . $ob->name . "/" . $self->{path}
		1985	if $self->per_player;
		1986
		1987	# return find "?party/" . $ob->name . "/" . $self->{path}
		1988	# if $self->per_party;
		1989
		1990	$self
1416	}	1991	}
1417		1992
1418	# find and load all maps in the 3x3 area around a map	1993	# find and load all maps in the 3x3 area around a map
1419	sub load_diag {	1994	sub load_neighbours {
1420	my ($map) = @_;	1995	my ($map) = @_;
1421		1996
1422	my @diag; # diagonal neighbours	1997	my @neigh; # diagonal neighbours
1423		1998
1424	for (0 .. 3) {	1999	for (0 .. 3) {
1425	my $neigh = $map->tile_path ($_)	2000	my $neigh = $map->tile_path ($_)
1426	or next;	2001	or next;
1427	$neigh = find $neigh, $map	2002	$neigh = find $neigh, $map
1428	or next;	2003	or next;
1429	$neigh->load;	2004	$neigh->load;
1430		2005
		2006	push @neigh,
1431	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2007	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1432	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2008	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1433	}	2009	}
1434		2010
1435	for (@diag) {	2011	for (grep defined $_->[0], @neigh) {
		2012	my ($path, $origin) = @$_;
1436	my $neigh = find @$_	2013	my $neigh = find $path, $origin
1437	or next;	2014	or next;
1438	$neigh->load;	2015	$neigh->load;
1439	}	2016	}
1440	}	2017	}
1441		2018
…		…
1446	}	2023	}
1447		2024
1448	sub do_load_sync {	2025	sub do_load_sync {
1449	my ($map) = @_;	2026	my ($map) = @_;
1450		2027
		2028	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2029	if $Coro::current == $Coro::main;
		2030
1451	cf::sync_job { $map->load };	2031	cf::sync_job { $map->load };
1452	}	2032	}
1453		2033
1454	our %MAP_PREFETCH;	2034	our %MAP_PREFETCH;
		2035	our $MAP_PREFETCHER = undef;
		2036
		2037	sub find_async {
		2038	my ($path, $origin, $load) = @_;
		2039
		2040	$path = normalise $path, $origin && $origin->{path};
		2041
		2042	if (my $map = $cf::MAP{$path}) {
		2043	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2044	}
		2045
		2046	$MAP_PREFETCH{$path} |= $load;
		2047
1455	our $MAP_PREFETCHER = Coro::async {	2048	$MAP_PREFETCHER ||= cf::async {
1456	while () {
1457	while (%MAP_PREFETCH) {	2049	while (%MAP_PREFETCH) {
1458	my $key = each %MAP_PREFETCH	2050	while (my ($k, $v) = each %MAP_PREFETCH) {
1459	or next;	2051	if (my $map = find $k) {
		2052	$map->load if $v;
		2053	}
		2054
1460	my $path = delete $MAP_PREFETCH{$key};	2055	delete $MAP_PREFETCH{$k};
1461
1462	my $map = find $path
1463	or next;
1464	$map->load;
1465	}	2056	}
1466	Coro::schedule;	2057	}
		2058	undef $MAP_PREFETCHER;
1467	}	2059	};
1468	};
1469
1470	sub find_async {
1471	my ($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;	2060	$MAP_PREFETCHER->prio (6);
1482		2061
1483	()	2062	()
1484	}	2063	}
1485		2064
1486	sub save {	2065	sub save {
1487	my ($self) = @_;	2066	my ($self) = @_;
1488		2067
1489	my $lock = cf::lock_acquire "map_data:" . $self->path;	2068	my $lock = cf::lock_acquire "map_data:$self->{path}";
1490		2069
1491	$self->{last_save} = $cf::RUNTIME;	2070	$self->{last_save} = $cf::RUNTIME;
1492		2071
1493	return unless $self->dirty;	2072	return unless $self->dirty;
1494		2073
1495	my $save = $self->{path}->save_path; utf8::encode $save;	2074	my $save = $self->save_path; utf8::encode $save;
1496	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2075	my $uniq = $self->uniq_path; utf8::encode $uniq;
1497		2076
1498	$self->{load_path} = $save;	2077	$self->{load_path} = $save;
1499		2078
1500	return if $self->{deny_save};	2079	return if $self->{deny_save};
1501		2080
…		…
1504	cf::async {	2083	cf::async {
1505	$_->contr->save for $self->players;	2084	$_->contr->save for $self->players;
1506	};	2085	};
1507		2086
1508	if ($uniq) {	2087	if ($uniq) {
1509	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2088	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1510	$self->save_objects ($uniq, cf::IO_UNIQUES);	2089	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1511	} else {	2090	} else {
1512	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2091	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1513	}	2092	}
1514	}	2093	}
1515		2094
1516	sub swap_out {	2095	sub swap_out {
1517	my ($self) = @_;	2096	my ($self) = @_;
1518		2097
1519	# save first because save cedes	2098	# save first because save cedes
1520	$self->save;	2099	$self->save;
1521		2100
1522	my $lock = cf::lock_acquire "map_data:" . $self->path;	2101	my $lock = cf::lock_acquire "map_data:$self->{path}";
1523		2102
1524	return if $self->players;	2103	return if $self->players;
1525	return if $self->in_memory != cf::MAP_IN_MEMORY;	2104	return if $self->in_memory != cf::MAP_IN_MEMORY;
1526	return if $self->{deny_save};	2105	return if $self->{deny_save};
1527		2106
		2107	$self->in_memory (cf::MAP_SWAPPED);
		2108
		2109	$self->deactivate;
		2110	$_->clear_links_to ($self) for values %cf::MAP;
1528	$self->clear;	2111	$self->clear;
1529	$self->in_memory (cf::MAP_SWAPPED);
1530	}	2112	}
1531		2113
1532	sub reset_at {	2114	sub reset_at {
1533	my ($self) = @_;	2115	my ($self) = @_;
1534		2116
1535	# TODO: safety, remove and allow resettable per-player maps	2117	# TODO: safety, remove and allow resettable per-player maps
1536	return 1e99 if $self->{path}{user_rel};
1537	return 1e99 if $self->{deny_reset};	2118	return 1e99 if $self->{deny_reset};
1538		2119
1539	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2120	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1540	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2121	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1541		2122
…		…
1546	my ($self) = @_;	2127	my ($self) = @_;
1547		2128
1548	$self->reset_at <= $cf::RUNTIME	2129	$self->reset_at <= $cf::RUNTIME
1549	}	2130	}
1550		2131
1551	sub unlink_save {
1552	my ($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	$self->save;
1570	}
1571
1572	sub reset {	2132	sub reset {
1573	my ($self) = @_;	2133	my ($self) = @_;
1574		2134
1575	my $lock = cf::lock_acquire "map_data:" . $self->path;	2135	my $lock = cf::lock_acquire "map_data:$self->{path}";
1576		2136
1577	return if $self->players;	2137	return if $self->players;
1578	return if $self->{path}{user_rel};#d#
1579		2138
1580	warn "resetting map ", $self->path;#d#	2139	warn "resetting map ", $self->path;
		2140
		2141	$self->in_memory (cf::MAP_SWAPPED);
		2142
		2143	# need to save uniques path
		2144	unless ($self->{deny_save}) {
		2145	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2146
		2147	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2148	if $uniq;
		2149	}
1581		2150
1582	delete $cf::MAP{$self->path};	2151	delete $cf::MAP{$self->path};
1583		2152
		2153	$self->deactivate;
1584	$_->clear_links_to ($self) for values %cf::MAP;	2154	$_->clear_links_to ($self) for values %cf::MAP;
		2155	$self->clear;
1585		2156
1586	$self->unlink_save;	2157	$self->unlink_save;
1587	$self->destroy;	2158	$self->destroy;
1588	}	2159	}
1589		2160
1590	my $nuke_counter = "aaaa";	2161	my $nuke_counter = "aaaa";
1591		2162
1592	sub nuke {	2163	sub nuke {
1593	my ($self) = @_;	2164	my ($self) = @_;
1594		2165
		2166	{
		2167	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2168
		2169	delete $cf::MAP{$self->path};
		2170
		2171	$self->unlink_save;
		2172
		2173	bless $self, "cf::map";
		2174	delete $self->{deny_reset};
1595	$self->{deny_save} = 1;	2175	$self->{deny_save} = 1;
1596	$self->reset_timeout (1);	2176	$self->reset_timeout (1);
1597	$self->rename ("{nuke}/" . ($nuke_counter++));	2177	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2178
		2179	$cf::MAP{$self->path} = $self;
		2180	}
		2181
1598	$self->reset; # polite request, might not happen	2182	$self->reset; # polite request, might not happen
1599	}	2183	}
1600		2184
1601	sub customise_for {	2185	=item $maps = cf::map::tmp_maps
1602	my ($map, $ob) = @_;
1603		2186
1604	if ($map->per_player) {	2187	Returns an arrayref with all map paths of currently instantiated and saved
1605	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2188	maps. May block.
		2189
		2190	=cut
		2191
		2192	sub tmp_maps() {
1606	}	2193	[
		2194	map {
		2195	utf8::decode $_;
		2196	/\.map$/
		2197	? normalise $_
		2198	: ()
		2199	} @{ aio_readdir $TMPDIR or [] }
		2200	]
		2201	}
1607		2202
1608	$map	2203	=item $maps = cf::map::random_maps
		2204
		2205	Returns an arrayref with all map paths of currently instantiated and saved
		2206	random maps. May block.
		2207
		2208	=cut
		2209
		2210	sub random_maps() {
		2211	[
		2212	map {
		2213	utf8::decode $_;
		2214	/\.map$/
		2215	? normalise "?random/$_"
		2216	: ()
		2217	} @{ aio_readdir $RANDOMDIR or [] }
		2218	]
1609	}	2219	}
1610		2220
1611	=item cf::map::unique_maps	2221	=item cf::map::unique_maps
1612		2222
1613	Returns an arrayref of cf::path's of all shared maps that have	2223	Returns an arrayref of paths of all shared maps that have
1614	instantiated unique items. May block.	2224	instantiated unique items. May block.
1615		2225
1616	=cut	2226	=cut
1617		2227
1618	sub unique_maps() {	2228	sub unique_maps() {
1619	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2229	[
1620	or return;	2230	map {
1621
1622	my @paths;
1623
1624	for (@$files) {
1625	utf8::decode $_;	2231	utf8::decode $_;
1626	next if /\.pst$/;	2232	/\.map$/
1627	next unless /^$PATH_SEP/o;	2233	? normalise $_
1628		2234	: ()
1629	push @paths, new cf::path $_;	2235	} @{ aio_readdir $UNIQUEDIR or [] }
1630	}	2236	]
1631
1632	\@paths
1633	}	2237	}
1634		2238
1635	package cf;	2239	package cf;
1636		2240
1637	=back	2241	=back
…		…
1655	map { $_, inv_recursive_ $_->inv } @_	2259	map { $_, inv_recursive_ $_->inv } @_
1656	}	2260	}
1657		2261
1658	sub inv_recursive {	2262	sub inv_recursive {
1659	inv_recursive_ inv $_[0]	2263	inv_recursive_ inv $_[0]
		2264	}
		2265
		2266	=item $ref = $ob->ref
		2267
		2268	creates and returns a persistent reference to an objetc that can be stored as a string.
		2269
		2270	=item $ob = cf::object::deref ($refstring)
		2271
		2272	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2273	even if the object actually exists. May block.
		2274
		2275	=cut
		2276
		2277	sub deref {
		2278	my ($ref) = @_;
		2279
		2280	# temporary compatibility#TODO#remove
		2281	$ref =~ s{^<}{player/<};
		2282
		2283	if ($ref =~ m{^player\/(<1\.\d+>)/(.*)$}) {
		2284	my ($uuid, $name) = ($1, $2);
		2285	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2286	or return;
		2287	$pl->ob->uuid eq $uuid
		2288	or return;
		2289
		2290	$pl->ob
		2291	} else {
		2292	warn "$ref: cannot resolve object reference\n";
		2293	undef
		2294	}
1660	}	2295	}
1661		2296
1662	package cf;	2297	package cf;
1663		2298
1664	=back	2299	=back
…		…
1683		2318
1684	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2319	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1685		2320
1686	if ($self->{record_replies}) {	2321	if ($self->{record_replies}) {
1687	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2322	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2323
1688	} else {	2324	} else {
		2325	my $pl = $self->contr;
		2326
		2327	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2328	my $dialog = $pl->{npc_dialog};
		2329	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2330
		2331	} else {
1689	$msg = $npc->name . " says: $msg" if $npc;	2332	$msg = $npc->name . " says: $msg" if $npc;
1690	$self->message ($msg, $flags);	2333	$self->message ($msg, $flags);
		2334	}
1691	}	2335	}
		2336	}
		2337
		2338	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2339
		2340	=cut
		2341
		2342	sub cf::object::send_msg {
		2343	my $pl = shift->contr
		2344	or return;
		2345	$pl->send_msg (@_);
1692	}	2346	}
1693		2347
1694	=item $player_object->may ("access")	2348	=item $player_object->may ("access")
1695		2349
1696	Returns wether the given player is authorized to access resource "access"	2350	Returns wether the given player is authorized to access resource "access"
…		…
1709		2363
1710	=item $player_object->enter_link	2364	=item $player_object->enter_link
1711		2365
1712	Freezes the player and moves him/her to a special map (C<{link}>).	2366	Freezes the player and moves him/her to a special map (C<{link}>).
1713		2367
1714	The player should be reaosnably safe there for short amounts of time. You	2368	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.	2369	I<MUST> call C<leave_link> as soon as possible, though.
1716		2370
		2371	Will never block.
		2372
1717	=item $player_object->leave_link ($map, $x, $y)	2373	=item $player_object->leave_link ($map, $x, $y)
1718		2374
1719	Moves the player out of the specila link map onto the given map. If the	2375	Moves the player out of the special C<{link}> map onto the specified
1720	map is not valid (or omitted), the player will be moved back to the	2376	map. If the map is not valid (or omitted), the player will be moved back
1721	location he/she was before the call to C<enter_link>, or, if that fails,	2377	to the location he/she was before the call to C<enter_link>, or, if that
1722	to the emergency map position.	2378	fails, to the emergency map position.
1723		2379
1724	Might block.	2380	Might block.
1725		2381
1726	=cut	2382	=cut
		2383
		2384	sub link_map {
		2385	unless ($LINK_MAP) {
		2386	$LINK_MAP = cf::map::find "{link}"
		2387	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2388	$LINK_MAP->load;
		2389	}
		2390
		2391	$LINK_MAP
		2392	}
1727		2393
1728	sub cf::object::player::enter_link {	2394	sub cf::object::player::enter_link {
1729	my ($self) = @_;	2395	my ($self) = @_;
1730		2396
1731	$self->deactivate_recursive;	2397	$self->deactivate_recursive;
1732		2398
1733	return if $self->map == $LINK_MAP;	2399	return if UNIVERSAL::isa $self->map, "ext::map_link";
1734		2400
1735	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2401	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1736	if $self->map;	2402	if $self->map && $self->map->{path} ne "{link}";
1737		2403
1738	$self->enter_map ($LINK_MAP, 20, 20);	2404	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1739	}	2405	}
1740		2406
1741	sub cf::object::player::leave_link {	2407	sub cf::object::player::leave_link {
1742	my ($self, $map, $x, $y) = @_;	2408	my ($self, $map, $x, $y) = @_;
		2409
		2410	return unless $self->contr->active;
1743		2411
1744	my $link_pos = delete $self->{_link_pos};	2412	my $link_pos = delete $self->{_link_pos};
1745		2413
1746	unless ($map) {	2414	unless ($map) {
1747	# restore original map position	2415	# restore original map position
…		…
1761	# use -1 or undef as default coordinates, not 0, 0	2429	# use -1 or undef as default coordinates, not 0, 0
1762	($x, $y) = ($map->enter_x, $map->enter_y)	2430	($x, $y) = ($map->enter_x, $map->enter_y)
1763	if $x <=0 && $y <= 0;	2431	if $x <=0 && $y <= 0;
1764		2432
1765	$map->load;	2433	$map->load;
1766	$map->load_diag;	2434	$map->load_neighbours;
1767		2435
1768	return unless $self->contr->active;	2436	return unless $self->contr->active;
1769	$self->activate_recursive;	2437	$self->activate_recursive;
		2438
		2439	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1770	$self->enter_map ($map, $x, $y);	2440	$self->enter_map ($map, $x, $y);
1771	}	2441	}
1772		2442
1773	cf::player->attach (	2443	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1774	on_logout => sub {
1775	my ($pl) = @_;
1776		2444
1777	# abort map switching before logout	2445	Moves the player to the given map-path and coordinates by first freezing
1778	if ($pl->ob->{_link_pos}) {	2446	her, loading and preparing them map, calling the provided $check callback
1779	cf::sync_job {	2447	that has to return the map if sucecssful, and then unfreezes the player on
1780	$pl->ob->leave_link	2448	the new (success) or old (failed) map position. In either case, $done will
1781	};	2449	be called at the end of this process.
1782	}
1783	},
1784	on_login => sub {
1785	my ($pl) = @_;
1786		2450
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	2451	=cut
		2452
		2453	our $GOTOGEN;
1808		2454
1809	sub cf::object::player::goto {	2455	sub cf::object::player::goto {
1810	my ($self, $path, $x, $y) = @_;	2456	my ($self, $path, $x, $y, $check, $done) = @_;
1811		2457
1812	$path = new cf::path $path;	2458	# do generation counting so two concurrent goto's will be executed in-order
		2459	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1813		2460
1814	$self->enter_link;	2461	$self->enter_link;
1815		2462
1816	(async {	2463	(async {
1817	my $map = cf::map::find $path->as_string;	2464	# *tag paths override both path and x|y
		2465	if ($path =~ /^\*(.*)$/) {
		2466	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2467	my $ob = $obs[rand @obs];
		2468
		2469	# see if we actually can go there
		2470	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2471	$ob = $obs[rand @obs];
		2472	} else {
		2473	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2474	}
		2475	# else put us there anyways for now #d#
		2476
		2477	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2478	} else {
		2479	($path, $x, $y) = (undef, undef, undef);
		2480	}
		2481	}
		2482
		2483	my $map = eval {
		2484	my $map = defined $path ? cf::map::find $path : undef;
		2485
		2486	if ($map) {
1818	$map = $map->customise_for ($self) if $map;	2487	$map = $map->customise_for ($self);
1819		2488	$map = $check->($map) if $check && $map;
1820	# warn "entering ", $map->path, " at ($x, $y)\n"	2489	} else {
1821	# if $map;
1822
1823	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2490	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2491	}
1824		2492
		2493	$map
		2494	};
		2495
		2496	if ($@) {
		2497	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2498	LOG llevError | logBacktrace, Carp::longmess $@;
		2499	}
		2500
		2501	if ($gen == $self->{_goto_generation}) {
		2502	delete $self->{_goto_generation};
1825	$self->leave_link ($map, $x, $y);	2503	$self->leave_link ($map, $x, $y);
		2504	}
		2505
		2506	$done->() if $done;
1826	})->prio (1);	2507	})->prio (1);
1827	}	2508	}
1828		2509
1829	=item $player_object->enter_exit ($exit_object)	2510	=item $player_object->enter_exit ($exit_object)
1830		2511
…		…
1832		2513
1833	sub parse_random_map_params {	2514	sub parse_random_map_params {
1834	my ($spec) = @_;	2515	my ($spec) = @_;
1835		2516
1836	my $rmp = { # defaults	2517	my $rmp = { # defaults
1837	xsize => 10,	2518	xsize => (cf::rndm 15, 40),
1838	ysize => 10,	2519	ysize => (cf::rndm 15, 40),
		2520	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2521	#layout => string,
1839	};	2522	};
1840		2523
1841	for (split /\n/, $spec) {	2524	for (split /\n/, $spec) {
1842	my ($k, $v) = split /\s+/, $_, 2;	2525	my ($k, $v) = split /\s+/, $_, 2;
1843		2526
…		…
1847	$rmp	2530	$rmp
1848	}	2531	}
1849		2532
1850	sub prepare_random_map {	2533	sub prepare_random_map {
1851	my ($exit) = @_;	2534	my ($exit) = @_;
		2535
		2536	my $guard = cf::lock_acquire "exit_prepare:$exit";
1852		2537
1853	# all this does is basically replace the /! path by	2538	# all this does is basically replace the /! path by
1854	# a new random map path (?random/...) with a seed	2539	# a new random map path (?random/...) with a seed
1855	# that depends on the exit object	2540	# that depends on the exit object
1856		2541
1857	my $rmp = parse_random_map_params $exit->msg;	2542	my $rmp = parse_random_map_params $exit->msg;
1858		2543
1859	if ($exit->map) {	2544	if ($exit->map) {
1860	$rmp->{region} = $exit->map->region_name;	2545	$rmp->{region} = $exit->region->name;
1861	$rmp->{origin_map} = $exit->map->path;	2546	$rmp->{origin_map} = $exit->map->path;
1862	$rmp->{origin_x} = $exit->x;	2547	$rmp->{origin_x} = $exit->x;
1863	$rmp->{origin_y} = $exit->y;	2548	$rmp->{origin_y} = $exit->y;
1864	}	2549	}
1865		2550
1866	$rmp->{random_seed} ||= $exit->random_seed;	2551	$rmp->{random_seed} ||= $exit->random_seed;
1867		2552
1868	my $data = cf::to_json $rmp;	2553	my $data = cf::to_json $rmp;
1869	my $md5 = Digest::MD5::md5_hex $data;	2554	my $md5 = Digest::MD5::md5_hex $data;
		2555	my $meta = "$RANDOMDIR/$md5.meta";
1870		2556
1871	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2557	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1872	aio_write $fh, 0, (length $data), $data, 0;	2558	aio_write $fh, 0, (length $data), $data, 0;
		2559	undef $fh;
		2560	aio_rename "$meta~", $meta;
1873		2561
1874	$exit->slaying ("?random/$md5");	2562	$exit->slaying ("?random/$md5");
1875	$exit->msg (undef);	2563	$exit->msg (undef);
1876	}	2564	}
1877	}	2565	}
…		…
1879	sub cf::object::player::enter_exit {	2567	sub cf::object::player::enter_exit {
1880	my ($self, $exit) = @_;	2568	my ($self, $exit) = @_;
1881		2569
1882	return unless $self->type == cf::PLAYER;	2570	return unless $self->type == cf::PLAYER;
1883		2571
		2572	if ($exit->slaying eq "/!") {
		2573	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2574	# the problem is that $exit might not survive long enough
		2575	# so it needs to be done right now, right here
		2576	cf::sync_job { prepare_random_map $exit };
		2577	}
		2578
		2579	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2580	my $hp = $exit->stats->hp;
		2581	my $sp = $exit->stats->sp;
		2582
1884	$self->enter_link;	2583	$self->enter_link;
		2584
		2585	# if exit is damned, update players death & WoR home-position
		2586	$self->contr->savebed ($slaying, $hp, $sp)
		2587	if $exit->flag (FLAG_DAMNED);
1885		2588
1886	(async {	2589	(async {
1887	$self->deactivate_recursive; # just to be sure	2590	$self->deactivate_recursive; # just to be sure
1888	unless (eval {	2591	unless (eval {
1889	prepare_random_map $exit	2592	$self->goto ($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		2593
1895	1;	2594	1;
1896	}) {	2595	}) {
1897	$self->message ("Something went wrong deep within the crossfire server. "	2596	$self->message ("Something went wrong deep within the crossfire server. "
1898	. "I'll try to bring you back to the map you were before. "	2597	. "I'll try to bring you back to the map you were before. "
1899	. "Please report this to the dungeon master!",	2598	. "Please report this to the dungeon master!",
1900	cf::NDI_UNIQUE | cf::NDI_RED);	2599	cf::NDI_UNIQUE | cf::NDI_RED);
1901		2600
1902	warn "ERROR in enter_exit: $@";	2601	warn "ERROR in enter_exit: $@";
1903	$self->leave_link;	2602	$self->leave_link;
1904	}	2603	}
1905	})->prio (1);	2604	})->prio (1);
…		…
1918		2617
1919	sub cf::client::send_drawinfo {	2618	sub cf::client::send_drawinfo {
1920	my ($self, $text, $flags) = @_;	2619	my ($self, $text, $flags) = @_;
1921		2620
1922	utf8::encode $text;	2621	utf8::encode $text;
1923	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2622	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1924	}	2623	}
1925		2624
		2625	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2626
		2627	Send a drawinfo or msg packet to the client, formatting the msg for the
		2628	client if neccessary. C<$type> should be a string identifying the type of
		2629	the message, with C<log> being the default. If C<$color> is negative, suppress
		2630	the message unless the client supports the msg packet.
		2631
		2632	=cut
		2633
		2634	our %CHANNEL = (
		2635	"c/identify" => {
		2636	id => "identify",
		2637	title => "Identify",
		2638	reply => undef,
		2639	tooltip => "Items recently identified",
		2640	},
		2641	"c/examine" => {
		2642	id => "examine",
		2643	title => "Examine",
		2644	reply => undef,
		2645	tooltip => "Signs and other items you examined",
		2646	},
		2647	);
		2648
		2649	sub cf::client::send_msg {
		2650	my ($self, $channel, $msg, $color, @extra) = @_;
		2651
		2652	$msg = $self->pl->expand_cfpod ($msg);
		2653
		2654	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2655
		2656	# check predefined channels, for the benefit of C
		2657	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2658
		2659	if (ref $channel) {
		2660	# send meta info to client, if not yet sent
		2661	unless (exists $self->{channel}{$channel->{id}}) {
		2662	$self->{channel}{$channel->{id}} = $channel;
		2663	$self->ext_msg (channel_info => $channel)
		2664	if $self->can_msg;
		2665	}
		2666
		2667	$channel = $channel->{id};
		2668	}
		2669
		2670	return unless @extra || length $msg;
		2671
		2672	if ($self->can_msg) {
		2673	# default colour, mask it out
		2674	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2675	if $color & cf::NDI_DEF;
		2676
		2677	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2678	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2679	} else {
		2680	if ($color >= 0) {
		2681	# replace some tags by gcfclient-compatible ones
		2682	for ($msg) {
		2683	1 while
		2684	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2685	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2686	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2687	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2688	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2689	}
		2690
		2691	$color &= cf::NDI_COLOR_MASK;
		2692
		2693	utf8::encode $msg;
		2694
		2695	if (0 && $msg =~ /\[/) {
		2696	# COMMAND/INFO
		2697	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2698	} else {
		2699	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2700	$self->send_packet ("drawinfo $color $msg")
		2701	}
		2702	}
		2703	}
		2704	}
		2705
		2706	=item $client->ext_msg ($type, @msg)
		2707
		2708	Sends an ext event to the client.
		2709
		2710	=cut
		2711
		2712	sub cf::client::ext_msg($$@) {
		2713	my ($self, $type, @msg) = @_;
		2714
		2715	if ($self->extcmd == 2) {
		2716	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2717	} elsif ($self->extcmd == 1) { # TODO: remove
		2718	push @msg, msgtype => "event_$type";
		2719	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2720	}
		2721	}
		2722
		2723	=item $client->ext_reply ($msgid, @msg)
		2724
		2725	Sends an ext reply to the client.
		2726
		2727	=cut
		2728
		2729	sub cf::client::ext_reply($$@) {
		2730	my ($self, $id, @msg) = @_;
		2731
		2732	if ($self->extcmd == 2) {
		2733	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2734	} elsif ($self->extcmd == 1) {
		2735	#TODO: version 1, remove
		2736	unshift @msg, msgtype => "reply", msgid => $id;
		2737	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2738	}
		2739	}
1926		2740
1927	=item $success = $client->query ($flags, "text", \&cb)	2741	=item $success = $client->query ($flags, "text", \&cb)
1928		2742
1929	Queues a query to the client, calling the given callback with	2743	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>,	2744	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>.	2745	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1932		2746
1933	Queries can fail, so check the return code. Or don't, as queries will become	2747	Queries can fail, so check the return code. Or don't, as queries will
1934	reliable at some point in the future.	2748	become reliable at some point in the future.
1935		2749
1936	=cut	2750	=cut
1937		2751
1938	sub cf::client::query {	2752	sub cf::client::query {
1939	my ($self, $flags, $text, $cb) = @_;	2753	my ($self, $flags, $text, $cb) = @_;
…		…
1947	utf8::encode $text;	2761	utf8::encode $text;
1948	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2762	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1949		2763
1950	$self->send_packet ($self->{query_queue}[0][0])	2764	$self->send_packet ($self->{query_queue}[0][0])
1951	if @{ $self->{query_queue} } == 1;	2765	if @{ $self->{query_queue} } == 1;
		2766
		2767	1
1952	}	2768	}
1953		2769
1954	cf::client->attach (	2770	cf::client->attach (
		2771	on_connect => sub {
		2772	my ($ns) = @_;
		2773
		2774	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2775	},
1955	on_reply => sub {	2776	on_reply => sub {
1956	my ($ns, $msg) = @_;	2777	my ($ns, $msg) = @_;
1957		2778
1958	# this weird shuffling is so that direct followup queries	2779	# this weird shuffling is so that direct followup queries
1959	# get handled first	2780	# get handled first
1960	my $queue = delete $ns->{query_queue}	2781	my $queue = delete $ns->{query_queue}
1961	or return; # be conservative, not sure how that can happen, but we saw a crash here	2782	or return; # be conservative, not sure how that can happen, but we saw a crash here
1962		2783
1963	(shift @$queue)->[1]->($msg);	2784	(shift @$queue)->[1]->($msg);
		2785	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1964		2786
1965	push @{ $ns->{query_queue} }, @$queue;	2787	push @{ $ns->{query_queue} }, @$queue;
1966		2788
1967	if (@{ $ns->{query_queue} } == @$queue) {	2789	if (@{ $ns->{query_queue} } == @$queue) {
1968	if (@$queue) {	2790	if (@$queue) {
…		…
1970	} else {	2792	} else {
1971	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2793	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1972	}	2794	}
1973	}	2795	}
1974	},	2796	},
		2797	on_exticmd => sub {
		2798	my ($ns, $buf) = @_;
		2799
		2800	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2801
		2802	if (ref $msg) {
		2803	my ($type, $reply, @payload) =
		2804	"ARRAY" eq ref $msg
		2805	? @$msg
		2806	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2807
		2808	my @reply;
		2809
		2810	if (my $cb = $EXTICMD{$type}) {
		2811	@reply = $cb->($ns, @payload);
		2812	}
		2813
		2814	$ns->ext_reply ($reply, @reply)
		2815	if $reply;
		2816
		2817	} else {
		2818	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2819	}
		2820
		2821	cf::override;
		2822	},
1975	);	2823	);
1976		2824
1977	=item $client->async (\&cb)	2825	=item $client->async (\&cb)
1978		2826
1979	Create a new coroutine, running the specified callback. The coroutine will	2827	Create a new coroutine, running the specified callback. The coroutine will
…		…
2020	our $safe = new Safe "safe";	2868	our $safe = new Safe "safe";
2021	our $safe_hole = new Safe::Hole;	2869	our $safe_hole = new Safe::Hole;
2022		2870
2023	$SIG{FPE} = 'IGNORE';	2871	$SIG{FPE} = 'IGNORE';
2024		2872
2025	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2873	$safe->permit_only (Opcode::opset qw(
		2874	:base_core :base_mem :base_orig :base_math
		2875	grepstart grepwhile mapstart mapwhile
		2876	sort time
		2877	));
2026		2878
2027	# here we export the classes and methods available to script code	2879	# here we export the classes and methods available to script code
2028		2880
2029	=pod	2881	=pod
2030		2882
2031	The following fucntions and emthods are available within a safe environment:	2883	The following functions and methods are available within a safe environment:
2032		2884
2033	cf::object contr pay_amount pay_player map	2885	cf::object
		2886	contr pay_amount pay_player map x y force_find force_add
		2887	insert remove name archname title slaying race decrease_ob_nr
		2888
2034	cf::object::player player	2889	cf::object::player
2035	cf::player peaceful	2890	player
2036	cf::map trigger	2891
		2892	cf::player
		2893	peaceful
		2894
		2895	cf::map
		2896	trigger
2037		2897
2038	=cut	2898	=cut
2039		2899
2040	for (	2900	for (
2041	["cf::object" => qw(contr pay_amount pay_player map)],	2901	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2902	insert remove inv name archname title slaying race
		2903	decrease_ob_nr)],
2042	["cf::object::player" => qw(player)],	2904	["cf::object::player" => qw(player)],
2043	["cf::player" => qw(peaceful)],	2905	["cf::player" => qw(peaceful)],
2044	["cf::map" => qw(trigger)],	2906	["cf::map" => qw(trigger)],
2045	) {	2907	) {
2046	no strict 'refs';	2908	no strict 'refs';
…		…
2117	=back	2979	=back
2118		2980
2119	=cut	2981	=cut
2120		2982
2121	#############################################################################	2983	#############################################################################
		2984	# the server's init and main functions
2122		2985
2123	=head2 EXTENSION DATABASE SUPPORT	2986	sub load_facedata($) {
		2987	my ($path) = @_;
2124		2988
2125	Crossfire maintains a very simple database for extension use. It can	2989	# HACK to clear player env face cache, we need some signal framework
2126	currently store anything that can be serialised using Storable, which	2990	# for this (global event?)
2127	excludes objects.	2991	%ext::player_env::MUSIC_FACE_CACHE = ();
2128		2992
2129	The parameter C<$family> should best start with the name of the extension	2993	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2130	using it, it should be unique.
2131		2994
2132	=over 4	2995	warn "loading facedata from $path\n";
2133		2996
2134	=item $hashref = cf::db_get $family	2997	my $facedata;
		2998	0 < aio_load $path, $facedata
		2999	or die "$path: $!";
2135		3000
2136	Return a hashref for use by the extension C<$family>, which can be	3001	$facedata = Coro::Storable::thaw $facedata;
2137	modified. After modifications, you have to call C<cf::db_dirty> or
2138	C<cf::db_sync>.
2139		3002
2140	=item $value = cf::db_get $family => $key	3003	$facedata->{version} == 2
		3004	or cf::cleanup "$path: version mismatch, cannot proceed.";
2141		3005
2142	Returns a single value from the database	3006	# patch in the exptable
2143		3007	$facedata->{resource}{"res/exp_table"} = {
2144	=item cf::db_put $family => $hashref	3008	type => FT_RSRC,
2145		3009	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	});	3010	};
		3011	cf::cede_to_tick;
2195		3012
2196	sub db_dirty() {
2197	$dirty = 1;
2198	$idle->start;
2199	}	3013	{
		3014	my $faces = $facedata->{faceinfo};
2200		3015
2201	sub db_get($;$) {	3016	while (my ($face, $info) = each %$faces) {
2202	@_ >= 2	3017	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2203	? $DB->{$_[0]}{$_[1]}	3018	cf::face::set_visibility $idx, $info->{visibility};
2204	: ($DB->{$_[0]} ||= { })	3019	cf::face::set_magicmap $idx, $info->{magicmap};
2205	}	3020	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3021	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2206		3022
2207	sub db_put($$;$) {	3023	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	},	3024	}
2221	);
2222	}
2223		3025
2224	#############################################################################	3026	while (my ($face, $info) = each %$faces) {
2225	# the server's main()	3027	next unless $info->{smooth};
		3028	my $idx = cf::face::find $face
		3029	or next;
		3030	if (my $smooth = cf::face::find $info->{smooth}) {
		3031	cf::face::set_smooth $idx, $smooth;
		3032	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3033	} else {
		3034	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3035	}
2226		3036
2227	sub cfg_load {	3037	cf::cede_to_tick;
		3038	}
		3039	}
		3040
		3041	{
		3042	my $anims = $facedata->{animinfo};
		3043
		3044	while (my ($anim, $info) = each %$anims) {
		3045	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3046	cf::cede_to_tick;
		3047	}
		3048
		3049	cf::anim::invalidate_all; # d'oh
		3050	}
		3051
		3052	{
		3053	# TODO: for gcfclient pleasure, we should give resources
		3054	# that gcfclient doesn't grok a >10000 face index.
		3055	my $res = $facedata->{resource};
		3056
		3057	my $soundconf = delete $res->{"res/sound.conf"};
		3058
		3059	while (my ($name, $info) = each %$res) {
		3060	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3061	my $data;
		3062
		3063	if ($info->{type} & 1) {
		3064	# prepend meta info
		3065
		3066	my $meta = $enc->encode ({
		3067	name => $name,
		3068	%{ $info->{meta} || {} },
		3069	});
		3070
		3071	$data = pack "(w/a*)*", $meta, $info->{data};
		3072	} else {
		3073	$data = $info->{data};
		3074	}
		3075
		3076	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3077	cf::face::set_type $idx, $info->{type};
		3078
		3079	cf::cede_to_tick;
		3080	}
		3081
		3082	if ($soundconf) {
		3083	$soundconf = $enc->decode (delete $soundconf->{data});
		3084
		3085	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3086	my $sound = $soundconf->{compat}[$_]
		3087	or next;
		3088
		3089	my $face = cf::face::find "sound/$sound->[1]";
		3090	cf::sound::set $sound->[0] => $face;
		3091	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3092	}
		3093
		3094	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3095	my $face = cf::face::find "sound/$v";
		3096	cf::sound::set $k => $face;
		3097	}
		3098	}
		3099	}
		3100
		3101	1
		3102	}
		3103
		3104	register_exticmd fx_want => sub {
		3105	my ($ns, $want) = @_;
		3106
		3107	while (my ($k, $v) = each %$want) {
		3108	$ns->fx_want ($k, $v);
		3109	}
		3110	};
		3111
		3112	sub reload_regions {
		3113	# HACK to clear player env face cache, we need some signal framework
		3114	# for this (global event?)
		3115	%ext::player_env::MUSIC_FACE_CACHE = ();
		3116
		3117	load_resource_file "$MAPDIR/regions"
		3118	or die "unable to load regions file\n";
		3119
		3120	for (cf::region::list) {
		3121	$_->{match} = qr/$_->{match}/
		3122	if exists $_->{match};
		3123	}
		3124	}
		3125
		3126	sub reload_facedata {
		3127	load_facedata "$DATADIR/facedata"
		3128	or die "unable to load facedata\n";
		3129	}
		3130
		3131	sub reload_archetypes {
		3132	load_resource_file "$DATADIR/archetypes"
		3133	or die "unable to load archetypes\n";
		3134	#d# NEED to laod twice to resolve forward references
		3135	# this really needs to be done in an extra post-pass
		3136	# (which needs to be synchronous, so solve it differently)
		3137	load_resource_file "$DATADIR/archetypes"
		3138	or die "unable to load archetypes\n";
		3139	}
		3140
		3141	sub reload_treasures {
		3142	load_resource_file "$DATADIR/treasures"
		3143	or die "unable to load treasurelists\n";
		3144	}
		3145
		3146	sub reload_resources {
		3147	warn "reloading resource files...\n";
		3148
		3149	reload_regions;
		3150	reload_facedata;
		3151	#reload_archetypes;#d#
		3152	reload_archetypes;
		3153	reload_treasures;
		3154
		3155	warn "finished reloading resource files\n";
		3156	}
		3157
		3158	sub init {
		3159	reload_resources;
		3160	}
		3161
		3162	sub reload_config {
2228	open my $fh, "<:utf8", cf::confdir . "/config"	3163	open my $fh, "<:utf8", "$CONFDIR/config"
2229	or return;	3164	or return;
2230		3165
2231	local $/;	3166	local $/;
2232	*CFG = YAML::Syck::Load <$fh>;	3167	*CFG = YAML::Syck::Load <$fh>;
2233		3168
…		…
2247		3182
2248	sub main {	3183	sub main {
2249	# we must not ever block the main coroutine	3184	# we must not ever block the main coroutine
2250	local $Coro::idle = sub {	3185	local $Coro::idle = sub {
2251	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3186	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3187	(async {
2252	async { Event::one_event };	3188	Event::one_event;
		3189	})->prio (Coro::PRIO_MAX);
2253	};	3190	};
2254		3191
2255	cfg_load;	3192	reload_config;
2256	db_load;	3193	db_init;
2257	load_extensions;	3194	load_extensions;
		3195
		3196	$TICK_WATCHER->start;
2258	Event::loop;	3197	Event::loop;
2259	}	3198	}
2260		3199
2261	#############################################################################	3200	#############################################################################
2262	# initialisation and cleanup	3201	# initialisation and cleanup
2263		3202
2264	# install some emergency cleanup handlers	3203	# install some emergency cleanup handlers
2265	BEGIN {	3204	BEGIN {
2266	for my $signal (qw(INT HUP TERM)) {	3205	for my $signal (qw(INT HUP TERM)) {
2267	Event->signal (	3206	Event->signal (
		3207	reentrant => 0,
2268	data => WF_AUTOCANCEL,	3208	data => WF_AUTOCANCEL,
2269	signal => $signal,	3209	signal => $signal,
		3210	prio => 0,
2270	cb => sub {	3211	cb => sub {
2271	cf::cleanup "SIG$signal";	3212	cf::cleanup "SIG$signal";
2272	},	3213	},
2273	);	3214	);
2274	}	3215	}
2275	}	3216	}
2276		3217
		3218	sub write_runtime {
		3219	my $runtime = "$LOCALDIR/runtime";
		3220
		3221	# first touch the runtime file to show we are still running:
		3222	# the fsync below can take a very very long time.
		3223
		3224	IO::AIO::aio_utime $runtime, undef, undef;
		3225
		3226	my $guard = cf::lock_acquire "write_runtime";
		3227
		3228	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3229	or return;
		3230
		3231	my $value = $cf::RUNTIME + 90 + 10;
		3232	# 10 is the runtime save interval, for a monotonic clock
		3233	# 60 allows for the watchdog to kill the server.
		3234
		3235	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3236	and return;
		3237
		3238	# always fsync - this file is important
		3239	aio_fsync $fh
		3240	and return;
		3241
		3242	# touch it again to show we are up-to-date
		3243	aio_utime $fh, undef, undef;
		3244
		3245	close $fh
		3246	or return;
		3247
		3248	aio_rename "$runtime~", $runtime
		3249	and return;
		3250
		3251	warn "runtime file written.\n";
		3252
		3253	1
		3254	}
		3255
2277	sub emergency_save() {	3256	sub emergency_save() {
2278	my $freeze_guard = cf::freeze_mainloop;	3257	my $freeze_guard = cf::freeze_mainloop;
2279		3258
2280	warn "enter emergency perl save\n";	3259	warn "enter emergency perl save\n";
2281		3260
2282	cf::sync_job {	3261	cf::sync_job {
2283	# use a peculiar iteration method to avoid tripping on perl	3262	# use a peculiar iteration method to avoid tripping on perl
2284	# refcount bugs in for. also avoids problems with players	3263	# refcount bugs in for. also avoids problems with players
2285	# and maps saved/Destroyed asynchronously.	3264	# and maps saved/destroyed asynchronously.
2286	warn "begin emergency player save\n";	3265	warn "begin emergency player save\n";
2287	for my $login (keys %cf::PLAYER) {	3266	for my $login (keys %cf::PLAYER) {
2288	my $pl = $cf::PLAYER{$login} or next;	3267	my $pl = $cf::PLAYER{$login} or next;
2289	$pl->valid or next;	3268	$pl->valid or next;
2290	$pl->save;	3269	$pl->save;
…		…
2296	my $map = $cf::MAP{$path} or next;	3275	my $map = $cf::MAP{$path} or next;
2297	$map->valid or next;	3276	$map->valid or next;
2298	$map->save;	3277	$map->save;
2299	}	3278	}
2300	warn "end emergency map save\n";	3279	warn "end emergency map save\n";
		3280
		3281	warn "begin emergency database checkpoint\n";
		3282	BDB::db_env_txn_checkpoint $DB_ENV;
		3283	warn "end emergency database checkpoint\n";
2301	};	3284	};
2302		3285
2303	warn "leave emergency perl save\n";	3286	warn "leave emergency perl save\n";
2304	}	3287	}
2305		3288
		3289	sub post_cleanup {
		3290	my ($make_core) = @_;
		3291
		3292	warn Carp::longmess "post_cleanup backtrace"
		3293	if $make_core;
		3294	}
		3295
2306	sub reload() {	3296	sub do_reload_perl() {
2307	# can/must only be called in main	3297	# can/must only be called in main
2308	if ($Coro::current != $Coro::main) {	3298	if ($Coro::current != $Coro::main) {
2309	warn "can only reload from main coroutine\n";	3299	warn "can only reload from main coroutine";
2310	return;	3300	return;
2311	}	3301	}
2312		3302
2313	warn "reloading...";	3303	warn "reloading...";
2314		3304
2315	warn "freezing server";	3305	warn "entering sync_job";
2316	my $guard = freeze_mainloop;	3306
		3307	cf::sync_job {
		3308	cf::write_runtime; # external watchdog should not bark
2317	cf::emergency_save;	3309	cf::emergency_save;
		3310	cf::write_runtime; # external watchdog should not bark
2318		3311
2319	warn "sync database to disk";	3312	warn "syncing database to disk";
2320	cf::db_sync;	3313	BDB::db_env_txn_checkpoint $DB_ENV;
2321	IO::AIO::flush;
2322		3314
2323	eval {
2324	# if anything goes wrong in here, we should simply crash as we already saved	3315	# if anything goes wrong in here, we should simply crash as we already saved
2325		3316
2326	warn "cancel all watchers";	3317	warn "cancelling all WF_AUTOCANCEL watchers";
2327	for (Event::all_watchers) {	3318	for (Event::all_watchers) {
2328	$_->cancel if $_->data & WF_AUTOCANCEL;	3319	$_->cancel if $_->data & WF_AUTOCANCEL;
2329	}	3320	}
2330		3321
		3322	warn "flushing outstanding aio requests";
		3323	for (;;) {
		3324	BDB::flush;
		3325	IO::AIO::flush;
		3326	Coro::cede;
		3327	last unless IO::AIO::nreqs || BDB::nreqs;
		3328	warn "iterate...";
		3329	}
		3330
		3331	++$RELOAD;
		3332
2331	warn "cancel all extension coros";	3333	warn "cancelling all extension coros";
2332	$_->cancel for values %EXT_CORO;	3334	$_->cancel for values %EXT_CORO;
2333	%EXT_CORO = ();	3335	%EXT_CORO = ();
2334		3336
2335	warn "remove commands";	3337	warn "removing commands";
2336	%COMMAND = ();	3338	%COMMAND = ();
2337		3339
2338	warn "remove ext commands";	3340	warn "removing ext/exti commands";
2339	%EXTCMD = ();	3341	%EXTCMD = ();
		3342	%EXTICMD = ();
2340		3343
2341	warn "unload/nuke all extensions";	3344	warn "unloading/nuking all extensions";
2342	for my $pkg (@EXTS) {	3345	for my $pkg (@EXTS) {
2343	warn "... unloading $pkg";	3346	warn "... unloading $pkg";
2344		3347
2345	if (my $cb = $pkg->can ("unload")) {	3348	if (my $cb = $pkg->can ("unload")) {
2346	eval {	3349	eval {
…		…
2351		3354
2352	warn "... nuking $pkg";	3355	warn "... nuking $pkg";
2353	Symbol::delete_package $pkg;	3356	Symbol::delete_package $pkg;
2354	}	3357	}
2355		3358
2356	warn "unload all perl modules loaded from $LIBDIR";	3359	warn "unloading all perl modules loaded from $LIBDIR";
2357	while (my ($k, $v) = each %INC) {	3360	while (my ($k, $v) = each %INC) {
2358	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3361	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2359		3362
2360	warn "removing <$k>";	3363	warn "... unloading $k";
2361	delete $INC{$k};	3364	delete $INC{$k};
2362		3365
2363	$k =~ s/\.pm$//;	3366	$k =~ s/\.pm$//;
2364	$k =~ s/\//::/g;	3367	$k =~ s/\//::/g;
2365		3368
…		…
2368	}	3371	}
2369		3372
2370	Symbol::delete_package $k;	3373	Symbol::delete_package $k;
2371	}	3374	}
2372		3375
2373	warn "get rid of safe::, as good as possible";	3376	warn "getting rid of safe::, as good as possible";
2374	Symbol::delete_package "safe::$_"	3377	Symbol::delete_package "safe::$_"
2375	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3378	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2376		3379
2377	warn "unload cf.pm \"a bit\"";	3380	warn "unloading cf.pm \"a bit\"";
2378	delete $INC{"cf.pm"};	3381	delete $INC{"cf.pm"};
		3382	delete $INC{"cf/pod.pm"};
2379		3383
2380	# don't, removes xs symbols, too,	3384	# don't, removes xs symbols, too,
2381	# and global variables created in xs	3385	# and global variables created in xs
2382	#Symbol::delete_package __PACKAGE__;	3386	#Symbol::delete_package __PACKAGE__;
2383		3387
		3388	warn "unload completed, starting to reload now";
		3389
2384	warn "reloading cf.pm";	3390	warn "reloading cf.pm";
2385	require cf;	3391	require cf;
2386	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3392	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2387		3393
2388	warn "load config and database again";	3394	warn "loading config and database again";
2389	cf::cfg_load;	3395	cf::reload_config;
2390	cf::db_load;
2391		3396
2392	warn "load extensions";	3397	warn "loading extensions";
2393	cf::load_extensions;	3398	cf::load_extensions;
2394		3399
2395	warn "reattach attachments to objects/players";	3400	warn "reattaching attachments to objects/players";
2396	_global_reattach;	3401	_global_reattach; # objects, sockets
2397	warn "reattach attachments to maps";	3402	warn "reattaching attachments to maps";
2398	reattach $_ for values %MAP;	3403	reattach $_ for values %MAP;
2399	};	3404	warn "reattaching attachments to players";
		3405	reattach $_ for values %PLAYER;
2400		3406
2401	if ($@) {	3407	warn "leaving sync_job";
		3408
		3409	1
		3410	} or do {
2402	warn $@;	3411	warn $@;
2403	warn "error while reloading, exiting.";	3412	warn "error while reloading, exiting.";
2404	exit 1;	3413	exit 1;
2405	}	3414	};
2406		3415
2407	warn "reloaded";	3416	warn "reloaded";
2408	};	3417	};
2409		3418
2410	#############################################################################	3419	our $RELOAD_WATCHER; # used only during reload
2411		3420
2412	unless ($LINK_MAP) {	3421	sub reload_perl() {
2413	$LINK_MAP = cf::map::new;	3422	# doing reload synchronously and two reloads happen back-to-back,
		3423	# coro crashes during coro_state_free->destroy here.
2414		3424
2415	$LINK_MAP->width (41);	3425	$RELOAD_WATCHER ||= Event->timer (
2416	$LINK_MAP->height (41);	3426	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,	3427	after => 0,
		3428	data => WF_AUTOCANCEL,
2425	cb => sub {	3429	cb => sub {
2426	$_[0]->w->cancel;	3430	do_reload_perl;
2427		3431	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	});	3432	},
2446		3433	);
2447	$LINK_MAP->{deny_save} = 1;
2448	$LINK_MAP->{deny_reset} = 1;
2449
2450	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2451	}	3434	}
2452		3435
2453	register_command "reload" => sub {	3436	register_command "reload" => sub {
2454	my ($who, $arg) = @_;	3437	my ($who, $arg) = @_;
2455		3438
2456	if ($who->flag (FLAG_WIZ)) {	3439	if ($who->flag (FLAG_WIZ)) {
2457	$who->message ("start of reload.");
2458	reload;
2459	$who->message ("end of reload.");	3440	$who->message ("reloading server.");
		3441	async { reload_perl };
2460	}	3442	}
2461	};	3443	};
2462		3444
2463	unshift @INC, $LIBDIR;	3445	unshift @INC, $LIBDIR;
		3446
		3447	my $bug_warning = 0;
		3448
		3449	our @WAIT_FOR_TICK;
		3450	our @WAIT_FOR_TICK_BEGIN;
		3451
		3452	sub wait_for_tick {
		3453	return unless $TICK_WATCHER->is_active;
		3454	return if $Coro::current == $Coro::main;
		3455
		3456	my $signal = new Coro::Signal;
		3457	push @WAIT_FOR_TICK, $signal;
		3458	$signal->wait;
		3459	}
		3460
		3461	sub wait_for_tick_begin {
		3462	return unless $TICK_WATCHER->is_active;
		3463	return if $Coro::current == $Coro::main;
		3464
		3465	my $signal = new Coro::Signal;
		3466	push @WAIT_FOR_TICK_BEGIN, $signal;
		3467	$signal->wait;
		3468	}
2464		3469
2465	$TICK_WATCHER = Event->timer (	3470	$TICK_WATCHER = Event->timer (
2466	reentrant => 0,	3471	reentrant => 0,
		3472	parked => 1,
2467	prio => 0,	3473	prio => 0,
2468	at => $NEXT_TICK || $TICK,	3474	at => $NEXT_TICK || $TICK,
2469	data => WF_AUTOCANCEL,	3475	data => WF_AUTOCANCEL,
2470	cb => sub {	3476	cb => sub {
		3477	if ($Coro::current != $Coro::main) {
		3478	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3479	unless ++$bug_warning > 10;
		3480	return;
		3481	}
		3482
		3483	$NOW = $tick_start = Event::time;
		3484
2471	cf::server_tick; # one server iteration	3485	cf::server_tick; # one server iteration
		3486
2472	$RUNTIME += $TICK;	3487	$RUNTIME += $TICK;
2473	$NEXT_TICK += $TICK;	3488	$NEXT_TICK += $TICK;
2474		3489
2475	$WAIT_FOR_TICK->broadcast;	3490	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2476	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3491	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3492	Coro::async_pool {
		3493	write_runtime
		3494	or warn "ERROR: unable to write runtime file: $!";
		3495	};
		3496	}
		3497
		3498	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3499	$sig->send;
		3500	}
		3501	while (my $sig = shift @WAIT_FOR_TICK) {
		3502	$sig->send;
		3503	}
		3504
		3505	$NOW = Event::time;
2477		3506
2478	# if we are delayed by four ticks or more, skip them all	3507	# if we are delayed by four ticks or more, skip them all
2479	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3508	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2480		3509
2481	$TICK_WATCHER->at ($NEXT_TICK);	3510	$TICK_WATCHER->at ($NEXT_TICK);
2482	$TICK_WATCHER->start;	3511	$TICK_WATCHER->start;
		3512
		3513	$LOAD = ($NOW - $tick_start) / $TICK;
		3514	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3515
		3516	_post_tick;
2483	},	3517	},
2484	);	3518	);
2485		3519
		3520	{
		3521	BDB::min_parallel 8;
2486	IO::AIO::max_poll_time $TICK * 0.2;	3522	BDB::max_poll_time $TICK * 0.1;
2487		3523	$BDB_POLL_WATCHER = Event->io (
2488	Event->io (	3524	reentrant => 0,
2489	fd => IO::AIO::poll_fileno,	3525	fd => BDB::poll_fileno,
2490	poll => 'r',	3526	poll => 'r',
2491	prio => 5,	3527	prio => 0,
2492	data => WF_AUTOCANCEL,
2493	cb => \&IO::AIO::poll_cb,
2494	);
2495
2496	Event->timer (
2497	data => WF_AUTOCANCEL,	3528	data => WF_AUTOCANCEL,
		3529	cb => \&BDB::poll_cb,
		3530	);
		3531
		3532	BDB::set_sync_prepare {
		3533	my $status;
		3534	my $current = $Coro::current;
		3535	(
		3536	sub {
		3537	$status = $!;
		3538	$current->ready; undef $current;
		3539	},
		3540	sub {
		3541	Coro::schedule while defined $current;
		3542	$! = $status;
		3543	},
		3544	)
		3545	};
		3546
		3547	unless ($DB_ENV) {
		3548	$DB_ENV = BDB::db_env_create;
		3549	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3550	| BDB::LOG_AUTOREMOVE, 1);
		3551	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3552	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3553
		3554	cf::sync_job {
		3555	eval {
		3556	BDB::db_env_open
		3557	$DB_ENV,
		3558	$BDBDIR,
		3559	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3560	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3561	0666;
		3562
		3563	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3564	};
		3565
		3566	cf::cleanup "db_env_open(db): $@" if $@;
		3567	};
		3568	}
		3569
		3570	$BDB_DEADLOCK_WATCHER = Event->timer (
2498	after => 0,	3571	after => 3,
2499	interval => 10,	3572	interval => 1,
		3573	hard => 1,
		3574	prio => 0,
		3575	data => WF_AUTOCANCEL,
2500	cb => sub {	3576	cb => sub {
2501	(Coro::unblock_sub {	3577	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2502	write_runtime	3578	},
2503	or warn "ERROR: unable to write runtime file: $!";	3579	);
		3580	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3581	after => 11,
		3582	interval => 60,
		3583	hard => 1,
		3584	prio => 0,
		3585	data => WF_AUTOCANCEL,
		3586	cb => sub {
		3587	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3588	},
		3589	);
		3590	$BDB_TRICKLE_WATCHER = Event->timer (
		3591	after => 5,
		3592	interval => 10,
		3593	hard => 1,
		3594	prio => 0,
		3595	data => WF_AUTOCANCEL,
		3596	cb => sub {
		3597	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3598	},
		3599	);
		3600	}
		3601
		3602	{
		3603	IO::AIO::min_parallel 8;
		3604
		3605	undef $Coro::AIO::WATCHER;
		3606	IO::AIO::max_poll_time $TICK * 0.1;
		3607	$AIO_POLL_WATCHER = Event->io (
		3608	reentrant => 0,
		3609	data => WF_AUTOCANCEL,
		3610	fd => IO::AIO::poll_fileno,
		3611	poll => 'r',
		3612	prio => 6,
		3613	cb => \&IO::AIO::poll_cb,
		3614	);
		3615	}
		3616
		3617	my $_log_backtrace;
		3618
		3619	sub _log_backtrace {
		3620	my ($msg, @addr) = @_;
		3621
		3622	$msg =~ s/\n//;
		3623
		3624	# limit the # of concurrent backtraces
		3625	if ($_log_backtrace < 2) {
		3626	++$_log_backtrace;
		3627	async {
		3628	my @bt = fork_call {
		3629	@addr = map { sprintf "%x", $_ } @addr;
		3630	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3631	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3632	or die "addr2line: $!";
		3633
		3634	my @funcs;
		3635	my @res = <$fh>;
		3636	chomp for @res;
		3637	while (@res) {
		3638	my ($func, $line) = splice @res, 0, 2, ();
		3639	push @funcs, "[$func] $line";
		3640	}
		3641
		3642	@funcs
		3643	};
		3644
		3645	LOG llevInfo, "[ABT] $msg\n";
		3646	LOG llevInfo, "[ABT] $_\n" for @bt;
		3647	--$_log_backtrace;
2504	})->();	3648	};
		3649	} else {
		3650	LOG llevInfo, "[ABT] $msg\n";
		3651	LOG llevInfo, "[ABT] [suppressed]\n";
2505	},	3652	}
2506	);	3653	}
		3654
		3655	# load additional modules
		3656	use cf::pod;
2507		3657
2508	END { cf::emergency_save }	3658	END { cf::emergency_save }
2509		3659
2510	1	3660	1
2511		3661

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