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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 1.372 by root, Sat Sep 15 13:25:33 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	my $pl = cf::player::load_pl $f
		1359	or return;
		1360	local $cf::PLAYER_LOADING{$login} = $pl;
		1361	$f->resolve_delayed_derefs;
1121	$cf::PLAYER{$login} = $pl	1362	$cf::PLAYER{$login} = $pl
1122	}	1363	}
1123	}	1364	}
1124	}	1365	}
1125		1366
…		…
1135		1376
1136	aio_mkdir playerdir $pl, 0770;	1377	aio_mkdir playerdir $pl, 0770;
1137	$pl->{last_save} = $cf::RUNTIME;	1378	$pl->{last_save} = $cf::RUNTIME;
1138		1379
1139	$pl->save_pl ($path);	1380	$pl->save_pl ($path);
1140	Coro::cede;	1381	cf::cede_to_tick;
1141	}	1382	}
1142		1383
1143	sub new($) {	1384	sub new($) {
1144	my ($login) = @_;	1385	my ($login) = @_;
1145		1386
…		…
1151	$cf::PLAYER{$login} = $self;	1392	$cf::PLAYER{$login} = $self;
1152		1393
1153	$self	1394	$self
1154	}	1395	}
1155		1396
		1397	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1398
		1399	=cut
		1400
		1401	sub send_msg {
		1402	my $ns = shift->ns
		1403	or return;
		1404	$ns->send_msg (@_);
		1405	}
		1406
1156	=item $pl->quit_character	1407	=item $pl->quit_character
1157		1408
1158	Nukes the player without looking back. If logged in, the connection will	1409	Nukes the player without looking back. If logged in, the connection will
1159	be destroyed. May block for a long time.	1410	be destroyed. May block for a long time.
1160		1411
1161	=cut	1412	=cut
1162		1413
1163	sub quit_character {	1414	sub quit_character {
1164	my ($pl) = @_;	1415	my ($pl) = @_;
		1416
		1417	my $name = $pl->ob->name;
1165		1418
1166	$pl->{deny_save} = 1;	1419	$pl->{deny_save} = 1;
1167	$pl->password ("*"); # this should lock out the player until we nuked the dir	1420	$pl->password ("*"); # this should lock out the player until we nuked the dir
1168		1421
1169	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1422	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1174	my $path = playerdir $pl;	1427	my $path = playerdir $pl;
1175	my $temp = "$path~$cf::RUNTIME~deleting~";	1428	my $temp = "$path~$cf::RUNTIME~deleting~";
1176	aio_rename $path, $temp;	1429	aio_rename $path, $temp;
1177	delete $cf::PLAYER{$pl->ob->name};	1430	delete $cf::PLAYER{$pl->ob->name};
1178	$pl->destroy;	1431	$pl->destroy;
		1432
		1433	my $prefix = qr<^~\Q$name\E/>;
		1434
		1435	# nuke player maps
		1436	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1437
1179	IO::AIO::aio_rmtree $temp;	1438	IO::AIO::aio_rmtree $temp;
		1439	}
		1440
		1441	=item $pl->kick
		1442
		1443	Kicks a player out of the game. This destroys the connection.
		1444
		1445	=cut
		1446
		1447	sub kick {
		1448	my ($pl, $kicker) = @_;
		1449
		1450	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1451	$pl->killer ("kicked");
		1452	$pl->ns->destroy;
1180	}	1453	}
1181		1454
1182	=item cf::player::list_logins	1455	=item cf::player::list_logins
1183		1456
1184	Returns am arrayref of all valid playernames in the system, can take a	1457	Returns am arrayref of all valid playernames in the system, can take a
1185	while and may block, so not sync_job-capable, ever.	1458	while and may block, so not sync_job-capable, ever.
1186		1459
1187	=cut	1460	=cut
1188		1461
1189	sub list_logins {	1462	sub list_logins {
1190	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1463	my $dirs = aio_readdir $PLAYERDIR
1191	or return [];	1464	or return [];
1192		1465
1193	my @logins;	1466	my @logins;
1194		1467
1195	for my $login (@$dirs) {	1468	for my $login (@$dirs) {
		1469	my $path = path $login;
		1470
		1471	# a .pst is a dead give-away for a valid player
		1472	unless (-e "$path.pst") {
1196	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1473	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1197	aio_read $fh, 0, 512, my $buf, 0 or next;	1474	aio_read $fh, 0, 512, my $buf, 0 or next;
1198	$buf !~ /^password -------------$/m or next; # official not-valid tag	1475	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1476	}
1199		1477
1200	utf8::decode $login;	1478	utf8::decode $login;
1201	push @logins, $login;	1479	push @logins, $login;
1202	}	1480	}
1203		1481
1204	\@logins	1482	\@logins
1205	}	1483	}
1206		1484
1207	=item $player->maps	1485	=item $player->maps
1208		1486
1209	Returns an arrayref of cf::path's of all maps that are private for this	1487	Returns an arrayref of map paths that are private for this
1210	player. May block.	1488	player. May block.
1211		1489
1212	=cut	1490	=cut
1213		1491
1214	sub maps($) {	1492	sub maps($) {
1215	my ($pl) = @_;	1493	my ($pl) = @_;
		1494
		1495	$pl = ref $pl ? $pl->ob->name : $pl;
1216		1496
1217	my $files = aio_readdir playerdir $pl	1497	my $files = aio_readdir playerdir $pl
1218	or return;	1498	or return;
1219		1499
1220	my @paths;	1500	my @paths;
…		…
1222	for (@$files) {	1502	for (@$files) {
1223	utf8::decode $_;	1503	utf8::decode $_;
1224	next if /\.(?:pl|pst)$/;	1504	next if /\.(?:pl|pst)$/;
1225	next unless /^$PATH_SEP/o;	1505	next unless /^$PATH_SEP/o;
1226		1506
1227	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1507	push @paths, cf::map::normalise "~$pl/$_";
1228	}	1508	}
1229		1509
1230	\@paths	1510	\@paths
1231	}	1511	}
1232		1512
		1513	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1514
		1515	Expand crossfire pod fragments into protocol xml.
		1516
		1517	=cut
		1518
		1519	sub expand_cfpod {
		1520	((my $self), (local $_)) = @_;
		1521
		1522	# escape & and <
		1523	s/&/&amp;/g;
		1524	s/(?<![BIUGHT])</&lt;/g;
		1525
		1526	# this is buggy, it needs to properly take care of nested <'s
		1527
		1528	1 while
		1529	# replace B<>, I<>, U<> etc.
		1530	s/B<([^\>]*)>/<b>$1<\/b>/
		1531	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1532	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1533	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1534	# replace G<male|female> tags
		1535	|| s{G<([^>|]*)\|([^>]*)>}{
		1536	$self->gender ? $2 : $1
		1537	}ge
		1538	# replace H<hint text>
		1539	|| s{H<([^\>]*)>}
		1540	{
		1541	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1542	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1543	"")
		1544	[$self->{hintmode}]
		1545	}ge;
		1546
		1547	# create single paragraphs (very hackish)
		1548	s/(?<=\S)\n(?=\w)/ /g;
		1549
		1550	# compress some whitespace
		1551	s/\s+\n/\n/g; # ws line-ends
		1552	s/\n\n+/\n/g; # double lines
		1553	s/^\n+//; # beginning lines
		1554	s/\n+$//; # ending lines
		1555
		1556	$_
		1557	}
		1558
		1559	sub hintmode {
		1560	$_[0]{hintmode} = $_[1] if @_ > 1;
		1561	$_[0]{hintmode}
		1562	}
		1563
1233	=item $player->ext_reply ($msgid, $msgtype, %msg)	1564	=item $player->ext_reply ($msgid, @msg)
1234		1565
1235	Sends an ext reply to the player.	1566	Sends an ext reply to the player.
1236		1567
1237	=cut	1568	=cut
1238		1569
1239	sub ext_reply($$$%) {	1570	sub ext_reply($$@) {
1240	my ($self, $id, %msg) = @_;	1571	my ($self, $id, @msg) = @_;
1241		1572
1242	$msg{msgid} = $id;	1573	$self->ns->ext_reply ($id, @msg)
1243
1244	$self->send ("ext " . cf::to_json \%msg);
1245	}	1574	}
1246		1575
1247	package cf;	1576	=item $player->ext_msg ($type, @msg)
		1577
		1578	Sends an ext event to the client.
		1579
		1580	=cut
		1581
		1582	sub ext_msg($$@) {
		1583	my ($self, $type, @msg) = @_;
		1584
		1585	$self->ns->ext_msg ($type, @msg);
		1586	}
		1587
		1588	=head3 cf::region
		1589
		1590	=over 4
		1591
		1592	=cut
		1593
		1594	package cf::region;
		1595
		1596	=item cf::region::find_by_path $path
		1597
		1598	Tries to decuce the likely region for a map knowing only its path.
		1599
		1600	=cut
		1601
		1602	sub find_by_path($) {
		1603	my ($path) = @_;
		1604
		1605	my ($match, $specificity);
		1606
		1607	for my $region (list) {
		1608	if ($region->{match} && $path =~ $region->{match}) {
		1609	($match, $specificity) = ($region, $region->specificity)
		1610	if $region->specificity > $specificity;
		1611	}
		1612	}
		1613
		1614	$match
		1615	}
1248		1616
1249	=back	1617	=back
1250
1251		1618
1252	=head3 cf::map	1619	=head3 cf::map
1253		1620
1254	=over 4	1621	=over 4
1255		1622
…		…
1258	package cf::map;	1625	package cf::map;
1259		1626
1260	use Fcntl;	1627	use Fcntl;
1261	use Coro::AIO;	1628	use Coro::AIO;
1262		1629
		1630	use overload
		1631	'""' => \&as_string,
		1632	fallback => 1;
		1633
1263	our $MAX_RESET = 3600;	1634	our $MAX_RESET = 3600;
1264	our $DEFAULT_RESET = 3000;	1635	our $DEFAULT_RESET = 3000;
1265		1636
1266	sub generate_random_map {	1637	sub generate_random_map {
1267	my ($path, $rmp) = @_;	1638	my ($self, $rmp) = @_;
1268
1269	# mit "rum" bekleckern, nicht	1639	# mit "rum" bekleckern, nicht
1270	cf::map::_create_random_map	1640	$self->_create_random_map (
1271	$path,
1272	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1641	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1273	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1642	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1274	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1643	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1275	$rmp->{exit_on_final_map},	1644	$rmp->{exit_on_final_map},
1276	$rmp->{xsize}, $rmp->{ysize},	1645	$rmp->{xsize}, $rmp->{ysize},
1277	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1646	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1278	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1647	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1279	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1648	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1280	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1649	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1281	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1650	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1282	(cf::region::find $rmp->{region})	1651	(cf::region::find $rmp->{region}), $rmp->{custom}
		1652	)
		1653	}
		1654
		1655	=item cf::map->register ($regex, $prio)
		1656
		1657	Register a handler for the map path matching the given regex at the
		1658	givne priority (higher is better, built-in handlers have priority 0, the
		1659	default).
		1660
		1661	=cut
		1662
		1663	sub register {
		1664	my (undef, $regex, $prio) = @_;
		1665	my $pkg = caller;
		1666
		1667	no strict;
		1668	push @{"$pkg\::ISA"}, __PACKAGE__;
		1669
		1670	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1671	}
		1672
		1673	# also paths starting with '/'
		1674	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1675
		1676	sub thawer_merge {
		1677	my ($self, $merge) = @_;
		1678
		1679	# we have to keep some variables in memory intact
		1680	local $self->{path};
		1681	local $self->{load_path};
		1682
		1683	$self->SUPER::thawer_merge ($merge);
		1684	}
		1685
		1686	sub normalise {
		1687	my ($path, $base) = @_;
		1688
		1689	$path = "$path"; # make sure its a string
		1690
		1691	$path =~ s/\.map$//;
		1692
		1693	# map plan:
		1694	#
		1695	# /! non-realised random map exit (special hack!)
		1696	# {... are special paths that are not being touched
		1697	# ?xxx/... are special absolute paths
		1698	# ?random/... random maps
		1699	# /... normal maps
		1700	# ~user/... per-player map of a specific user
		1701
		1702	$path =~ s/$PATH_SEP/\//go;
		1703
		1704	# treat it as relative path if it starts with
		1705	# something that looks reasonable
		1706	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1707	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1708
		1709	$base =~ s{[^/]+/?$}{};
		1710	$path = "$base/$path";
		1711	}
		1712
		1713	for ($path) {
		1714	redo if s{//}{/};
		1715	redo if s{/\.?/}{/};
		1716	redo if s{/[^/]+/\.\./}{/};
		1717	}
		1718
		1719	$path
		1720	}
		1721
		1722	sub new_from_path {
		1723	my (undef, $path, $base) = @_;
		1724
		1725	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1726
		1727	$path = normalise $path, $base;
		1728
		1729	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1730	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1731	my $self = bless cf::map::new, $pkg;
		1732	$self->{path} = $path; $self->path ($path);
		1733	$self->init; # pass $1 etc.
		1734	return $self;
		1735	}
		1736	}
		1737
		1738	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1739	()
		1740	}
		1741
		1742	sub init {
		1743	my ($self) = @_;
		1744
		1745	$self
		1746	}
		1747
		1748	sub as_string {
		1749	my ($self) = @_;
		1750
		1751	"$self->{path}"
		1752	}
		1753
		1754	# the displayed name, this is a one way mapping
		1755	sub visible_name {
		1756	&as_string
		1757	}
		1758
		1759	# the original (read-only) location
		1760	sub load_path {
		1761	my ($self) = @_;
		1762
		1763	"$MAPDIR/$self->{path}.map"
		1764	}
		1765
		1766	# the temporary/swap location
		1767	sub save_path {
		1768	my ($self) = @_;
		1769
		1770	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1771	"$TMPDIR/$path.map"
		1772	}
		1773
		1774	# the unique path, undef == no special unique path
		1775	sub uniq_path {
		1776	my ($self) = @_;
		1777
		1778	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1779	"$UNIQUEDIR/$path"
1283	}	1780	}
1284		1781
1285	# and all this just because we cannot iterate over	1782	# and all this just because we cannot iterate over
1286	# all maps in C++...	1783	# all maps in C++...
1287	sub change_all_map_light {	1784	sub change_all_map_light {
…		…
1289		1786
1290	$_->change_map_light ($change)	1787	$_->change_map_light ($change)
1291	for grep $_->outdoor, values %cf::MAP;	1788	for grep $_->outdoor, values %cf::MAP;
1292	}	1789	}
1293		1790
		1791	sub decay_objects {
		1792	my ($self) = @_;
		1793
		1794	return if $self->{deny_reset};
		1795
		1796	$self->do_decay_objects;
		1797	}
		1798
		1799	sub unlink_save {
		1800	my ($self) = @_;
		1801
		1802	utf8::encode (my $save = $self->save_path);
		1803	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1804	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1805	}
		1806
1294	sub load_map_header($) {	1807	sub load_header_from($) {
1295	my ($path) = @_;	1808	my ($self, $path) = @_;
1296		1809
1297	utf8::encode $path;	1810	utf8::encode $path;
1298	aio_open $path, O_RDONLY, 0	1811	my $f = new_from_file cf::object::thawer $path
1299	or return;	1812	or return;
1300		1813
1301	my $map = cf::map::new	1814	$self->_load_header ($f)
1302	or return;	1815	or return;
1303		1816
1304	# for better error messages only, will be overwritten later	1817	local $MAP_LOADING{$self->{path}} = $self;
1305	$map->path ($path);	1818	$f->resolve_delayed_derefs;
1306		1819
1307	$map->load_header ($path)	1820	$self->{load_path} = $path;
		1821
		1822	1
		1823	}
		1824
		1825	sub load_header_orig {
		1826	my ($self) = @_;
		1827
		1828	$self->load_header_from ($self->load_path)
		1829	}
		1830
		1831	sub load_header_temp {
		1832	my ($self) = @_;
		1833
		1834	$self->load_header_from ($self->save_path)
		1835	}
		1836
		1837	sub prepare_temp {
		1838	my ($self) = @_;
		1839
		1840	$self->last_access ((delete $self->{last_access})
		1841	|| $cf::RUNTIME); #d#
		1842	# safety
		1843	$self->{instantiate_time} = $cf::RUNTIME
		1844	if $self->{instantiate_time} > $cf::RUNTIME;
		1845	}
		1846
		1847	sub prepare_orig {
		1848	my ($self) = @_;
		1849
		1850	$self->{load_original} = 1;
		1851	$self->{instantiate_time} = $cf::RUNTIME;
		1852	$self->last_access ($cf::RUNTIME);
		1853	$self->instantiate;
		1854	}
		1855
		1856	sub load_header {
		1857	my ($self) = @_;
		1858
		1859	if ($self->load_header_temp) {
		1860	$self->prepare_temp;
		1861	} else {
		1862	$self->load_header_orig
1308	or return;	1863	or return;
		1864	$self->prepare_orig;
		1865	}
1309		1866
1310	$map->{load_path} = $path;	1867	$self->{deny_reset} = 1
		1868	if $self->no_reset;
1311		1869
1312	$map	1870	$self->default_region (cf::region::find_by_path $self->{path})
		1871	unless $self->default_region;
		1872
		1873	1
1313	}	1874	}
1314		1875
1315	sub find;	1876	sub find;
1316	sub find {	1877	sub find {
1317	my ($path, $origin) = @_;	1878	my ($path, $origin) = @_;
1318		1879
1319	#warn "find<$path,$origin>\n";#d#
1320
1321	$path = new cf::path $path, $origin && $origin->path;	1880	$path = normalise $path, $origin && $origin->path;
1322	my $key = $path->as_string;
1323		1881
		1882	cf::lock_wait "map_data:$path";#d#remove
1324	cf::lock_wait "map_find:$key";	1883	cf::lock_wait "map_find:$path";
1325		1884
1326	$cf::MAP{$key} || do {	1885	$cf::MAP{$path} || do {
1327	my $guard = cf::lock_acquire "map_find:$key";	1886	my $guard1 = cf::lock_acquire "map_find:$path";
		1887	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1328		1888
1329	# do it the slow way	1889	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;	1890	or return;
1343		1891
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;	1892	$map->{last_save} = $cf::RUNTIME;
1356		1893
1357	Coro::cede;	1894	$map->load_header
		1895	or return;
1358		1896
1359	if ($map->should_reset) {	1897	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1898	# doing this can freeze the server in a sync job, obviously
		1899	#$cf::WAIT_FOR_TICK->wait;
		1900	undef $guard1;
		1901	undef $guard2;
1360	$map->reset;	1902	$map->reset;
1361	undef $guard;
1362	$map = find $path	1903	return find $path;
1363	or return;
1364	}	1904	}
1365		1905
1366	$cf::MAP{$key} = $map	1906	$cf::MAP{$path} = $map
1367	}	1907	}
1368	}	1908	}
		1909
		1910	sub pre_load { }
		1911	sub post_load { }
1369		1912
1370	sub load {	1913	sub load {
1371	my ($self) = @_;	1914	my ($self) = @_;
1372		1915
		1916	local $self->{deny_reset} = 1; # loading can take a long time
		1917
1373	my $path = $self->{path};	1918	my $path = $self->{path};
		1919
		1920	{
1374	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1921	my $guard = cf::lock_acquire "map_data:$path";
1375		1922
		1923	return unless $self->valid;
1376	return if $self->in_memory != cf::MAP_SWAPPED;	1924	return unless $self->in_memory == cf::MAP_SWAPPED;
1377		1925
1378	$self->in_memory (cf::MAP_LOADING);	1926	$self->in_memory (cf::MAP_LOADING);
1379		1927
1380	$self->alloc;	1928	$self->alloc;
1381	$self->load_objects ($self->{load_path}, 1)	1929
		1930	$self->pre_load;
		1931	cf::cede_to_tick;
		1932
		1933	my $f = new_from_file cf::object::thawer $self->{load_path};
		1934	$f->skip_block;
		1935	$self->_load_objects ($f)
1382	or return;	1936	or return;
1383		1937
1384	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1938	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1385	if delete $self->{load_original};	1939	if delete $self->{load_original};
1386		1940
1387	if (my $uniq = $path->uniq_path) {	1941	if (my $uniq = $self->uniq_path) {
1388	utf8::encode $uniq;	1942	utf8::encode $uniq;
1389	if (aio_open $uniq, O_RDONLY, 0) {	1943	unless (aio_stat $uniq) {
		1944	if (my $f = new_from_file cf::object::thawer $uniq) {
1390	$self->clear_unique_items;	1945	$self->clear_unique_items;
1391	$self->load_objects ($uniq, 0);	1946	$self->_load_objects ($f);
		1947	$f->resolve_delayed_derefs;
		1948	}
1392	}	1949	}
1393	}	1950	}
1394		1951
1395	Coro::cede;	1952	$f->resolve_delayed_derefs;
1396		1953
		1954	cf::cede_to_tick;
1397	# now do the right thing for maps	1955	# now do the right thing for maps
1398	$self->link_multipart_objects;	1956	$self->link_multipart_objects;
1399
1400	if ($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)	1957	$self->difficulty ($self->estimate_difficulty)
1409	unless $self->difficulty;	1958	unless $self->difficulty;
		1959	cf::cede_to_tick;
		1960
		1961	unless ($self->{deny_activate}) {
		1962	$self->decay_objects;
		1963	$self->fix_auto_apply;
		1964	$self->update_buttons;
		1965	cf::cede_to_tick;
		1966	$self->set_darkness_map;
		1967	cf::cede_to_tick;
1410	$self->activate;	1968	$self->activate;
1411	}	1969	}
1412		1970
1413	Coro::cede;	1971	$self->{last_save} = $cf::RUNTIME;
		1972	$self->last_access ($cf::RUNTIME);
1414		1973
1415	$self->in_memory (cf::MAP_IN_MEMORY);	1974	$self->in_memory (cf::MAP_IN_MEMORY);
		1975	}
		1976
		1977	$self->post_load;
		1978	}
		1979
		1980	sub customise_for {
		1981	my ($self, $ob) = @_;
		1982
		1983	return find "~" . $ob->name . "/" . $self->{path}
		1984	if $self->per_player;
		1985
		1986	# return find "?party/" . $ob->name . "/" . $self->{path}
		1987	# if $self->per_party;
		1988
		1989	$self
1416	}	1990	}
1417		1991
1418	# find and load all maps in the 3x3 area around a map	1992	# find and load all maps in the 3x3 area around a map
1419	sub load_diag {	1993	sub load_neighbours {
1420	my ($map) = @_;	1994	my ($map) = @_;
1421		1995
1422	my @diag; # diagonal neighbours	1996	my @neigh; # diagonal neighbours
1423		1997
1424	for (0 .. 3) {	1998	for (0 .. 3) {
1425	my $neigh = $map->tile_path ($_)	1999	my $neigh = $map->tile_path ($_)
1426	or next;	2000	or next;
1427	$neigh = find $neigh, $map	2001	$neigh = find $neigh, $map
1428	or next;	2002	or next;
1429	$neigh->load;	2003	$neigh->load;
1430		2004
		2005	push @neigh,
1431	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2006	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1432	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2007	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1433	}	2008	}
1434		2009
1435	for (@diag) {	2010	for (grep defined $_->[0], @neigh) {
		2011	my ($path, $origin) = @$_;
1436	my $neigh = find @$_	2012	my $neigh = find $path, $origin
1437	or next;	2013	or next;
1438	$neigh->load;	2014	$neigh->load;
1439	}	2015	}
1440	}	2016	}
1441		2017
…		…
1446	}	2022	}
1447		2023
1448	sub do_load_sync {	2024	sub do_load_sync {
1449	my ($map) = @_;	2025	my ($map) = @_;
1450		2026
		2027	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2028	if $Coro::current == $Coro::main;
		2029
1451	cf::sync_job { $map->load };	2030	cf::sync_job { $map->load };
1452	}	2031	}
1453		2032
1454	our %MAP_PREFETCH;	2033	our %MAP_PREFETCH;
		2034	our $MAP_PREFETCHER = undef;
		2035
		2036	sub find_async {
		2037	my ($path, $origin, $load) = @_;
		2038
		2039	$path = normalise $path, $origin && $origin->{path};
		2040
		2041	if (my $map = $cf::MAP{$path}) {
		2042	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2043	}
		2044
		2045	$MAP_PREFETCH{$path} |= $load;
		2046
1455	our $MAP_PREFETCHER = Coro::async {	2047	$MAP_PREFETCHER ||= cf::async {
1456	while () {
1457	while (%MAP_PREFETCH) {	2048	while (%MAP_PREFETCH) {
1458	my $key = each %MAP_PREFETCH	2049	while (my ($k, $v) = each %MAP_PREFETCH) {
1459	or next;	2050	if (my $map = find $k) {
		2051	$map->load if $v;
		2052	}
		2053
1460	my $path = delete $MAP_PREFETCH{$key};	2054	delete $MAP_PREFETCH{$k};
1461
1462	my $map = find $path
1463	or next;
1464	$map->load;
1465	}	2055	}
1466	Coro::schedule;	2056	}
		2057	undef $MAP_PREFETCHER;
1467	}	2058	};
1468	};
1469
1470	sub find_async {
1471	my ($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;	2059	$MAP_PREFETCHER->prio (6);
1482		2060
1483	()	2061	()
1484	}	2062	}
1485		2063
1486	sub save {	2064	sub save {
1487	my ($self) = @_;	2065	my ($self) = @_;
1488		2066
1489	my $lock = cf::lock_acquire "map_data:" . $self->path;	2067	my $lock = cf::lock_acquire "map_data:$self->{path}";
1490		2068
1491	$self->{last_save} = $cf::RUNTIME;	2069	$self->{last_save} = $cf::RUNTIME;
1492		2070
1493	return unless $self->dirty;	2071	return unless $self->dirty;
1494		2072
1495	my $save = $self->{path}->save_path; utf8::encode $save;	2073	my $save = $self->save_path; utf8::encode $save;
1496	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2074	my $uniq = $self->uniq_path; utf8::encode $uniq;
1497		2075
1498	$self->{load_path} = $save;	2076	$self->{load_path} = $save;
1499		2077
1500	return if $self->{deny_save};	2078	return if $self->{deny_save};
1501		2079
…		…
1504	cf::async {	2082	cf::async {
1505	$_->contr->save for $self->players;	2083	$_->contr->save for $self->players;
1506	};	2084	};
1507		2085
1508	if ($uniq) {	2086	if ($uniq) {
1509	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2087	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1510	$self->save_objects ($uniq, cf::IO_UNIQUES);	2088	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1511	} else {	2089	} else {
1512	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2090	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1513	}	2091	}
1514	}	2092	}
1515		2093
1516	sub swap_out {	2094	sub swap_out {
1517	my ($self) = @_;	2095	my ($self) = @_;
1518		2096
1519	# save first because save cedes	2097	# save first because save cedes
1520	$self->save;	2098	$self->save;
1521		2099
1522	my $lock = cf::lock_acquire "map_data:" . $self->path;	2100	my $lock = cf::lock_acquire "map_data:$self->{path}";
1523		2101
1524	return if $self->players;	2102	return if $self->players;
1525	return if $self->in_memory != cf::MAP_IN_MEMORY;	2103	return if $self->in_memory != cf::MAP_IN_MEMORY;
1526	return if $self->{deny_save};	2104	return if $self->{deny_save};
1527		2105
		2106	$self->in_memory (cf::MAP_SWAPPED);
		2107
		2108	$self->deactivate;
		2109	$_->clear_links_to ($self) for values %cf::MAP;
1528	$self->clear;	2110	$self->clear;
1529	$self->in_memory (cf::MAP_SWAPPED);
1530	}	2111	}
1531		2112
1532	sub reset_at {	2113	sub reset_at {
1533	my ($self) = @_;	2114	my ($self) = @_;
1534		2115
1535	# TODO: safety, remove and allow resettable per-player maps	2116	# TODO: safety, remove and allow resettable per-player maps
1536	return 1e99 if $self->{path}{user_rel};
1537	return 1e99 if $self->{deny_reset};	2117	return 1e99 if $self->{deny_reset};
1538		2118
1539	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2119	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1540	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2120	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1541		2121
…		…
1546	my ($self) = @_;	2126	my ($self) = @_;
1547		2127
1548	$self->reset_at <= $cf::RUNTIME	2128	$self->reset_at <= $cf::RUNTIME
1549	}	2129	}
1550		2130
1551	sub unlink_save {
1552	my ($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	$self->save;
1570	}
1571
1572	sub reset {	2131	sub reset {
1573	my ($self) = @_;	2132	my ($self) = @_;
1574		2133
1575	my $lock = cf::lock_acquire "map_data:" . $self->path;	2134	my $lock = cf::lock_acquire "map_data:$self->{path}";
1576		2135
1577	return if $self->players;	2136	return if $self->players;
1578	return if $self->{path}{user_rel};#d#
1579		2137
1580	warn "resetting map ", $self->path;#d#	2138	warn "resetting map ", $self->path;
		2139
		2140	$self->in_memory (cf::MAP_SWAPPED);
		2141
		2142	# need to save uniques path
		2143	unless ($self->{deny_save}) {
		2144	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2145
		2146	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2147	if $uniq;
		2148	}
1581		2149
1582	delete $cf::MAP{$self->path};	2150	delete $cf::MAP{$self->path};
1583		2151
		2152	$self->deactivate;
1584	$_->clear_links_to ($self) for values %cf::MAP;	2153	$_->clear_links_to ($self) for values %cf::MAP;
		2154	$self->clear;
1585		2155
1586	$self->unlink_save;	2156	$self->unlink_save;
1587	$self->destroy;	2157	$self->destroy;
1588	}	2158	}
1589		2159
1590	my $nuke_counter = "aaaa";	2160	my $nuke_counter = "aaaa";
1591		2161
1592	sub nuke {	2162	sub nuke {
1593	my ($self) = @_;	2163	my ($self) = @_;
1594		2164
		2165	{
		2166	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2167
		2168	delete $cf::MAP{$self->path};
		2169
		2170	$self->unlink_save;
		2171
		2172	bless $self, "cf::map";
		2173	delete $self->{deny_reset};
1595	$self->{deny_save} = 1;	2174	$self->{deny_save} = 1;
1596	$self->reset_timeout (1);	2175	$self->reset_timeout (1);
1597	$self->rename ("{nuke}/" . ($nuke_counter++));	2176	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2177
		2178	$cf::MAP{$self->path} = $self;
		2179	}
		2180
1598	$self->reset; # polite request, might not happen	2181	$self->reset; # polite request, might not happen
1599	}	2182	}
1600		2183
1601	sub customise_for {	2184	=item $maps = cf::map::tmp_maps
1602	my ($map, $ob) = @_;
1603		2185
1604	if ($map->per_player) {	2186	Returns an arrayref with all map paths of currently instantiated and saved
1605	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2187	maps. May block.
		2188
		2189	=cut
		2190
		2191	sub tmp_maps() {
1606	}	2192	[
		2193	map {
		2194	utf8::decode $_;
		2195	/\.map$/
		2196	? normalise $_
		2197	: ()
		2198	} @{ aio_readdir $TMPDIR or [] }
		2199	]
		2200	}
1607		2201
1608	$map	2202	=item $maps = cf::map::random_maps
		2203
		2204	Returns an arrayref with all map paths of currently instantiated and saved
		2205	random maps. May block.
		2206
		2207	=cut
		2208
		2209	sub random_maps() {
		2210	[
		2211	map {
		2212	utf8::decode $_;
		2213	/\.map$/
		2214	? normalise "?random/$_"
		2215	: ()
		2216	} @{ aio_readdir $RANDOMDIR or [] }
		2217	]
1609	}	2218	}
1610		2219
1611	=item cf::map::unique_maps	2220	=item cf::map::unique_maps
1612		2221
1613	Returns an arrayref of cf::path's of all shared maps that have	2222	Returns an arrayref of paths of all shared maps that have
1614	instantiated unique items. May block.	2223	instantiated unique items. May block.
1615		2224
1616	=cut	2225	=cut
1617		2226
1618	sub unique_maps() {	2227	sub unique_maps() {
1619	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2228	[
1620	or return;	2229	map {
1621
1622	my @paths;
1623
1624	for (@$files) {
1625	utf8::decode $_;	2230	utf8::decode $_;
1626	next if /\.pst$/;	2231	/\.map$/
1627	next unless /^$PATH_SEP/o;	2232	? normalise $_
1628		2233	: ()
1629	push @paths, new cf::path $_;	2234	} @{ aio_readdir $UNIQUEDIR or [] }
1630	}	2235	]
1631
1632	\@paths
1633	}	2236	}
1634		2237
1635	package cf;	2238	package cf;
1636		2239
1637	=back	2240	=back
…		…
1655	map { $_, inv_recursive_ $_->inv } @_	2258	map { $_, inv_recursive_ $_->inv } @_
1656	}	2259	}
1657		2260
1658	sub inv_recursive {	2261	sub inv_recursive {
1659	inv_recursive_ inv $_[0]	2262	inv_recursive_ inv $_[0]
		2263	}
		2264
		2265	=item $ref = $ob->ref
		2266
		2267	creates and returns a persistent reference to an objetc that can be stored as a string.
		2268
		2269	=item $ob = cf::object::deref ($refstring)
		2270
		2271	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2272	even if the object actually exists. May block.
		2273
		2274	=cut
		2275
		2276	sub deref {
		2277	my ($ref) = @_;
		2278
		2279	# temporary compatibility#TODO#remove
		2280	$ref =~ s{^<}{player/<};
		2281
		2282	if ($ref =~ m{^player\/(<1\.\d+>)/(.*)$}) {
		2283	my ($uuid, $name) = ($1, $2);
		2284	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2285	or return;
		2286	$pl->ob->uuid eq $uuid
		2287	or return;
		2288
		2289	$pl->ob
		2290	} else {
		2291	warn "$ref: cannot resolve object reference\n";
		2292	undef
		2293	}
1660	}	2294	}
1661		2295
1662	package cf;	2296	package cf;
1663		2297
1664	=back	2298	=back
…		…
1683		2317
1684	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2318	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1685		2319
1686	if ($self->{record_replies}) {	2320	if ($self->{record_replies}) {
1687	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2321	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2322
1688	} else {	2323	} else {
		2324	my $pl = $self->contr;
		2325
		2326	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2327	my $dialog = $pl->{npc_dialog};
		2328	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2329
		2330	} else {
1689	$msg = $npc->name . " says: $msg" if $npc;	2331	$msg = $npc->name . " says: $msg" if $npc;
1690	$self->message ($msg, $flags);	2332	$self->message ($msg, $flags);
		2333	}
1691	}	2334	}
		2335	}
		2336
		2337	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2338
		2339	=cut
		2340
		2341	sub cf::object::send_msg {
		2342	my $pl = shift->contr
		2343	or return;
		2344	$pl->send_msg (@_);
1692	}	2345	}
1693		2346
1694	=item $player_object->may ("access")	2347	=item $player_object->may ("access")
1695		2348
1696	Returns wether the given player is authorized to access resource "access"	2349	Returns wether the given player is authorized to access resource "access"
…		…
1709		2362
1710	=item $player_object->enter_link	2363	=item $player_object->enter_link
1711		2364
1712	Freezes the player and moves him/her to a special map (C<{link}>).	2365	Freezes the player and moves him/her to a special map (C<{link}>).
1713		2366
1714	The player should be reaosnably safe there for short amounts of time. You	2367	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.	2368	I<MUST> call C<leave_link> as soon as possible, though.
1716		2369
		2370	Will never block.
		2371
1717	=item $player_object->leave_link ($map, $x, $y)	2372	=item $player_object->leave_link ($map, $x, $y)
1718		2373
1719	Moves the player out of the specila link map onto the given map. If the	2374	Moves the player out of the special C<{link}> map onto the specified
1720	map is not valid (or omitted), the player will be moved back to the	2375	map. If the map is not valid (or omitted), the player will be moved back
1721	location he/she was before the call to C<enter_link>, or, if that fails,	2376	to the location he/she was before the call to C<enter_link>, or, if that
1722	to the emergency map position.	2377	fails, to the emergency map position.
1723		2378
1724	Might block.	2379	Might block.
1725		2380
1726	=cut	2381	=cut
		2382
		2383	sub link_map {
		2384	unless ($LINK_MAP) {
		2385	$LINK_MAP = cf::map::find "{link}"
		2386	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2387	$LINK_MAP->load;
		2388	}
		2389
		2390	$LINK_MAP
		2391	}
1727		2392
1728	sub cf::object::player::enter_link {	2393	sub cf::object::player::enter_link {
1729	my ($self) = @_;	2394	my ($self) = @_;
1730		2395
1731	$self->deactivate_recursive;	2396	$self->deactivate_recursive;
1732		2397
1733	return if $self->map == $LINK_MAP;	2398	return if UNIVERSAL::isa $self->map, "ext::map_link";
1734		2399
1735	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2400	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1736	if $self->map;	2401	if $self->map && $self->map->{path} ne "{link}";
1737		2402
1738	$self->enter_map ($LINK_MAP, 20, 20);	2403	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1739	}	2404	}
1740		2405
1741	sub cf::object::player::leave_link {	2406	sub cf::object::player::leave_link {
1742	my ($self, $map, $x, $y) = @_;	2407	my ($self, $map, $x, $y) = @_;
		2408
		2409	return unless $self->contr->active;
1743		2410
1744	my $link_pos = delete $self->{_link_pos};	2411	my $link_pos = delete $self->{_link_pos};
1745		2412
1746	unless ($map) {	2413	unless ($map) {
1747	# restore original map position	2414	# restore original map position
…		…
1761	# use -1 or undef as default coordinates, not 0, 0	2428	# use -1 or undef as default coordinates, not 0, 0
1762	($x, $y) = ($map->enter_x, $map->enter_y)	2429	($x, $y) = ($map->enter_x, $map->enter_y)
1763	if $x <=0 && $y <= 0;	2430	if $x <=0 && $y <= 0;
1764		2431
1765	$map->load;	2432	$map->load;
1766	$map->load_diag;	2433	$map->load_neighbours;
1767		2434
1768	return unless $self->contr->active;	2435	return unless $self->contr->active;
1769	$self->activate_recursive;	2436	$self->activate_recursive;
		2437
		2438	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1770	$self->enter_map ($map, $x, $y);	2439	$self->enter_map ($map, $x, $y);
1771	}	2440	}
1772		2441
1773	cf::player->attach (	2442	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1774	on_logout => sub {
1775	my ($pl) = @_;
1776		2443
1777	# abort map switching before logout	2444	Moves the player to the given map-path and coordinates by first freezing
1778	if ($pl->ob->{_link_pos}) {	2445	her, loading and preparing them map, calling the provided $check callback
1779	cf::sync_job {	2446	that has to return the map if sucecssful, and then unfreezes the player on
1780	$pl->ob->leave_link	2447	the new (success) or old (failed) map position. In either case, $done will
1781	};	2448	be called at the end of this process.
1782	}
1783	},
1784	on_login => sub {
1785	my ($pl) = @_;
1786		2449
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	2450	=cut
		2451
		2452	our $GOTOGEN;
1808		2453
1809	sub cf::object::player::goto {	2454	sub cf::object::player::goto {
1810	my ($self, $path, $x, $y) = @_;	2455	my ($self, $path, $x, $y, $check, $done) = @_;
1811		2456
1812	$path = new cf::path $path;	2457	# do generation counting so two concurrent goto's will be executed in-order
		2458	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1813		2459
1814	$self->enter_link;	2460	$self->enter_link;
1815		2461
1816	(async {	2462	(async {
1817	my $map = cf::map::find $path->as_string;	2463	# *tag paths override both path and x|y
		2464	if ($path =~ /^\*(.*)$/) {
		2465	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2466	my $ob = $obs[rand @obs];
		2467
		2468	# see if we actually can go there
		2469	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2470	$ob = $obs[rand @obs];
		2471	} else {
		2472	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2473	}
		2474	# else put us there anyways for now #d#
		2475
		2476	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2477	} else {
		2478	($path, $x, $y) = (undef, undef, undef);
		2479	}
		2480	}
		2481
		2482	my $map = eval {
		2483	my $map = defined $path ? cf::map::find $path : undef;
		2484
		2485	if ($map) {
1818	$map = $map->customise_for ($self) if $map;	2486	$map = $map->customise_for ($self);
1819		2487	$map = $check->($map) if $check && $map;
1820	# warn "entering ", $map->path, " at ($x, $y)\n"	2488	} else {
1821	# if $map;
1822
1823	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2489	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2490	}
1824		2491
		2492	$map
		2493	};
		2494
		2495	if ($@) {
		2496	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2497	LOG llevError | logBacktrace, Carp::longmess $@;
		2498	}
		2499
		2500	if ($gen == $self->{_goto_generation}) {
		2501	delete $self->{_goto_generation};
1825	$self->leave_link ($map, $x, $y);	2502	$self->leave_link ($map, $x, $y);
		2503	}
		2504
		2505	$done->() if $done;
1826	})->prio (1);	2506	})->prio (1);
1827	}	2507	}
1828		2508
1829	=item $player_object->enter_exit ($exit_object)	2509	=item $player_object->enter_exit ($exit_object)
1830		2510
…		…
1832		2512
1833	sub parse_random_map_params {	2513	sub parse_random_map_params {
1834	my ($spec) = @_;	2514	my ($spec) = @_;
1835		2515
1836	my $rmp = { # defaults	2516	my $rmp = { # defaults
1837	xsize => 10,	2517	xsize => (cf::rndm 15, 40),
1838	ysize => 10,	2518	ysize => (cf::rndm 15, 40),
		2519	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2520	#layout => string,
1839	};	2521	};
1840		2522
1841	for (split /\n/, $spec) {	2523	for (split /\n/, $spec) {
1842	my ($k, $v) = split /\s+/, $_, 2;	2524	my ($k, $v) = split /\s+/, $_, 2;
1843		2525
…		…
1847	$rmp	2529	$rmp
1848	}	2530	}
1849		2531
1850	sub prepare_random_map {	2532	sub prepare_random_map {
1851	my ($exit) = @_;	2533	my ($exit) = @_;
		2534
		2535	my $guard = cf::lock_acquire "exit_prepare:$exit";
1852		2536
1853	# all this does is basically replace the /! path by	2537	# all this does is basically replace the /! path by
1854	# a new random map path (?random/...) with a seed	2538	# a new random map path (?random/...) with a seed
1855	# that depends on the exit object	2539	# that depends on the exit object
1856		2540
1857	my $rmp = parse_random_map_params $exit->msg;	2541	my $rmp = parse_random_map_params $exit->msg;
1858		2542
1859	if ($exit->map) {	2543	if ($exit->map) {
1860	$rmp->{region} = $exit->map->region_name;	2544	$rmp->{region} = $exit->region->name;
1861	$rmp->{origin_map} = $exit->map->path;	2545	$rmp->{origin_map} = $exit->map->path;
1862	$rmp->{origin_x} = $exit->x;	2546	$rmp->{origin_x} = $exit->x;
1863	$rmp->{origin_y} = $exit->y;	2547	$rmp->{origin_y} = $exit->y;
1864	}	2548	}
1865		2549
1866	$rmp->{random_seed} ||= $exit->random_seed;	2550	$rmp->{random_seed} ||= $exit->random_seed;
1867		2551
1868	my $data = cf::to_json $rmp;	2552	my $data = cf::to_json $rmp;
1869	my $md5 = Digest::MD5::md5_hex $data;	2553	my $md5 = Digest::MD5::md5_hex $data;
		2554	my $meta = "$RANDOMDIR/$md5.meta";
1870		2555
1871	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2556	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1872	aio_write $fh, 0, (length $data), $data, 0;	2557	aio_write $fh, 0, (length $data), $data, 0;
		2558	undef $fh;
		2559	aio_rename "$meta~", $meta;
1873		2560
1874	$exit->slaying ("?random/$md5");	2561	$exit->slaying ("?random/$md5");
1875	$exit->msg (undef);	2562	$exit->msg (undef);
1876	}	2563	}
1877	}	2564	}
…		…
1879	sub cf::object::player::enter_exit {	2566	sub cf::object::player::enter_exit {
1880	my ($self, $exit) = @_;	2567	my ($self, $exit) = @_;
1881		2568
1882	return unless $self->type == cf::PLAYER;	2569	return unless $self->type == cf::PLAYER;
1883		2570
		2571	if ($exit->slaying eq "/!") {
		2572	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2573	# the problem is that $exit might not survive long enough
		2574	# so it needs to be done right now, right here
		2575	cf::sync_job { prepare_random_map $exit };
		2576	}
		2577
		2578	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2579	my $hp = $exit->stats->hp;
		2580	my $sp = $exit->stats->sp;
		2581
1884	$self->enter_link;	2582	$self->enter_link;
		2583
		2584	# if exit is damned, update players death & WoR home-position
		2585	$self->contr->savebed ($slaying, $hp, $sp)
		2586	if $exit->flag (FLAG_DAMNED);
1885		2587
1886	(async {	2588	(async {
1887	$self->deactivate_recursive; # just to be sure	2589	$self->deactivate_recursive; # just to be sure
1888	unless (eval {	2590	unless (eval {
1889	prepare_random_map $exit	2591	$self->goto ($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		2592
1895	1;	2593	1;
1896	}) {	2594	}) {
1897	$self->message ("Something went wrong deep within the crossfire server. "	2595	$self->message ("Something went wrong deep within the crossfire server. "
1898	. "I'll try to bring you back to the map you were before. "	2596	. "I'll try to bring you back to the map you were before. "
1899	. "Please report this to the dungeon master!",	2597	. "Please report this to the dungeon master!",
1900	cf::NDI_UNIQUE | cf::NDI_RED);	2598	cf::NDI_UNIQUE | cf::NDI_RED);
1901		2599
1902	warn "ERROR in enter_exit: $@";	2600	warn "ERROR in enter_exit: $@";
1903	$self->leave_link;	2601	$self->leave_link;
1904	}	2602	}
1905	})->prio (1);	2603	})->prio (1);
…		…
1918		2616
1919	sub cf::client::send_drawinfo {	2617	sub cf::client::send_drawinfo {
1920	my ($self, $text, $flags) = @_;	2618	my ($self, $text, $flags) = @_;
1921		2619
1922	utf8::encode $text;	2620	utf8::encode $text;
1923	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2621	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1924	}	2622	}
1925		2623
		2624	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2625
		2626	Send a drawinfo or msg packet to the client, formatting the msg for the
		2627	client if neccessary. C<$type> should be a string identifying the type of
		2628	the message, with C<log> being the default. If C<$color> is negative, suppress
		2629	the message unless the client supports the msg packet.
		2630
		2631	=cut
		2632
		2633	our %CHANNEL = (
		2634	"c/identify" => {
		2635	id => "identify",
		2636	title => "Identify",
		2637	reply => undef,
		2638	tooltip => "Items recently identified",
		2639	},
		2640	"c/examine" => {
		2641	id => "examine",
		2642	title => "Examine",
		2643	reply => undef,
		2644	tooltip => "Signs and other items you examined",
		2645	},
		2646	);
		2647
		2648	sub cf::client::send_msg {
		2649	my ($self, $channel, $msg, $color, @extra) = @_;
		2650
		2651	$msg = $self->pl->expand_cfpod ($msg);
		2652
		2653	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2654
		2655	# check predefined channels, for the benefit of C
		2656	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2657
		2658	if (ref $channel) {
		2659	# send meta info to client, if not yet sent
		2660	unless (exists $self->{channel}{$channel->{id}}) {
		2661	$self->{channel}{$channel->{id}} = $channel;
		2662	$self->ext_msg (channel_info => $channel)
		2663	if $self->can_msg;
		2664	}
		2665
		2666	$channel = $channel->{id};
		2667	}
		2668
		2669	return unless @extra || length $msg;
		2670
		2671	if ($self->can_msg) {
		2672	# default colour, mask it out
		2673	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2674	if $color & cf::NDI_DEF;
		2675
		2676	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2677	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2678	} else {
		2679	if ($color >= 0) {
		2680	# replace some tags by gcfclient-compatible ones
		2681	for ($msg) {
		2682	1 while
		2683	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2684	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2685	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2686	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2687	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2688	}
		2689
		2690	$color &= cf::NDI_COLOR_MASK;
		2691
		2692	utf8::encode $msg;
		2693
		2694	if (0 && $msg =~ /\[/) {
		2695	# COMMAND/INFO
		2696	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2697	} else {
		2698	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2699	$self->send_packet ("drawinfo $color $msg")
		2700	}
		2701	}
		2702	}
		2703	}
		2704
		2705	=item $client->ext_msg ($type, @msg)
		2706
		2707	Sends an ext event to the client.
		2708
		2709	=cut
		2710
		2711	sub cf::client::ext_msg($$@) {
		2712	my ($self, $type, @msg) = @_;
		2713
		2714	if ($self->extcmd == 2) {
		2715	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2716	} elsif ($self->extcmd == 1) { # TODO: remove
		2717	push @msg, msgtype => "event_$type";
		2718	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2719	}
		2720	}
		2721
		2722	=item $client->ext_reply ($msgid, @msg)
		2723
		2724	Sends an ext reply to the client.
		2725
		2726	=cut
		2727
		2728	sub cf::client::ext_reply($$@) {
		2729	my ($self, $id, @msg) = @_;
		2730
		2731	if ($self->extcmd == 2) {
		2732	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2733	} elsif ($self->extcmd == 1) {
		2734	#TODO: version 1, remove
		2735	unshift @msg, msgtype => "reply", msgid => $id;
		2736	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2737	}
		2738	}
1926		2739
1927	=item $success = $client->query ($flags, "text", \&cb)	2740	=item $success = $client->query ($flags, "text", \&cb)
1928		2741
1929	Queues a query to the client, calling the given callback with	2742	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>,	2743	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>.	2744	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1932		2745
1933	Queries can fail, so check the return code. Or don't, as queries will become	2746	Queries can fail, so check the return code. Or don't, as queries will
1934	reliable at some point in the future.	2747	become reliable at some point in the future.
1935		2748
1936	=cut	2749	=cut
1937		2750
1938	sub cf::client::query {	2751	sub cf::client::query {
1939	my ($self, $flags, $text, $cb) = @_;	2752	my ($self, $flags, $text, $cb) = @_;
…		…
1947	utf8::encode $text;	2760	utf8::encode $text;
1948	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2761	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1949		2762
1950	$self->send_packet ($self->{query_queue}[0][0])	2763	$self->send_packet ($self->{query_queue}[0][0])
1951	if @{ $self->{query_queue} } == 1;	2764	if @{ $self->{query_queue} } == 1;
		2765
		2766	1
1952	}	2767	}
1953		2768
1954	cf::client->attach (	2769	cf::client->attach (
		2770	on_connect => sub {
		2771	my ($ns) = @_;
		2772
		2773	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2774	},
1955	on_reply => sub {	2775	on_reply => sub {
1956	my ($ns, $msg) = @_;	2776	my ($ns, $msg) = @_;
1957		2777
1958	# this weird shuffling is so that direct followup queries	2778	# this weird shuffling is so that direct followup queries
1959	# get handled first	2779	# get handled first
1960	my $queue = delete $ns->{query_queue}	2780	my $queue = delete $ns->{query_queue}
1961	or return; # be conservative, not sure how that can happen, but we saw a crash here	2781	or return; # be conservative, not sure how that can happen, but we saw a crash here
1962		2782
1963	(shift @$queue)->[1]->($msg);	2783	(shift @$queue)->[1]->($msg);
		2784	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1964		2785
1965	push @{ $ns->{query_queue} }, @$queue;	2786	push @{ $ns->{query_queue} }, @$queue;
1966		2787
1967	if (@{ $ns->{query_queue} } == @$queue) {	2788	if (@{ $ns->{query_queue} } == @$queue) {
1968	if (@$queue) {	2789	if (@$queue) {
…		…
1970	} else {	2791	} else {
1971	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2792	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1972	}	2793	}
1973	}	2794	}
1974	},	2795	},
		2796	on_exticmd => sub {
		2797	my ($ns, $buf) = @_;
		2798
		2799	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2800
		2801	if (ref $msg) {
		2802	my ($type, $reply, @payload) =
		2803	"ARRAY" eq ref $msg
		2804	? @$msg
		2805	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2806
		2807	my @reply;
		2808
		2809	if (my $cb = $EXTICMD{$type}) {
		2810	@reply = $cb->($ns, @payload);
		2811	}
		2812
		2813	$ns->ext_reply ($reply, @reply)
		2814	if $reply;
		2815
		2816	} else {
		2817	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2818	}
		2819
		2820	cf::override;
		2821	},
1975	);	2822	);
1976		2823
1977	=item $client->async (\&cb)	2824	=item $client->async (\&cb)
1978		2825
1979	Create a new coroutine, running the specified callback. The coroutine will	2826	Create a new coroutine, running the specified callback. The coroutine will
…		…
2020	our $safe = new Safe "safe";	2867	our $safe = new Safe "safe";
2021	our $safe_hole = new Safe::Hole;	2868	our $safe_hole = new Safe::Hole;
2022		2869
2023	$SIG{FPE} = 'IGNORE';	2870	$SIG{FPE} = 'IGNORE';
2024		2871
2025	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2872	$safe->permit_only (Opcode::opset qw(
		2873	:base_core :base_mem :base_orig :base_math
		2874	grepstart grepwhile mapstart mapwhile
		2875	sort time
		2876	));
2026		2877
2027	# here we export the classes and methods available to script code	2878	# here we export the classes and methods available to script code
2028		2879
2029	=pod	2880	=pod
2030		2881
2031	The following fucntions and emthods are available within a safe environment:	2882	The following functions and methods are available within a safe environment:
2032		2883
2033	cf::object contr pay_amount pay_player map	2884	cf::object
		2885	contr pay_amount pay_player map x y force_find force_add
		2886	insert remove name archname title slaying race decrease_ob_nr
		2887
2034	cf::object::player player	2888	cf::object::player
2035	cf::player peaceful	2889	player
2036	cf::map trigger	2890
		2891	cf::player
		2892	peaceful
		2893
		2894	cf::map
		2895	trigger
2037		2896
2038	=cut	2897	=cut
2039		2898
2040	for (	2899	for (
2041	["cf::object" => qw(contr pay_amount pay_player map)],	2900	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2901	insert remove inv name archname title slaying race
		2902	decrease_ob_nr)],
2042	["cf::object::player" => qw(player)],	2903	["cf::object::player" => qw(player)],
2043	["cf::player" => qw(peaceful)],	2904	["cf::player" => qw(peaceful)],
2044	["cf::map" => qw(trigger)],	2905	["cf::map" => qw(trigger)],
2045	) {	2906	) {
2046	no strict 'refs';	2907	no strict 'refs';
…		…
2117	=back	2978	=back
2118		2979
2119	=cut	2980	=cut
2120		2981
2121	#############################################################################	2982	#############################################################################
		2983	# the server's init and main functions
2122		2984
2123	=head2 EXTENSION DATABASE SUPPORT	2985	sub load_facedata($) {
		2986	my ($path) = @_;
2124		2987
2125	Crossfire maintains a very simple database for extension use. It can	2988	# HACK to clear player env face cache, we need some signal framework
2126	currently store anything that can be serialised using Storable, which	2989	# for this (global event?)
2127	excludes objects.	2990	%ext::player_env::MUSIC_FACE_CACHE = ();
2128		2991
2129	The parameter C<$family> should best start with the name of the extension	2992	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2130	using it, it should be unique.
2131		2993
2132	=over 4	2994	warn "loading facedata from $path\n";
2133		2995
2134	=item $hashref = cf::db_get $family	2996	my $facedata;
		2997	0 < aio_load $path, $facedata
		2998	or die "$path: $!";
2135		2999
2136	Return a hashref for use by the extension C<$family>, which can be	3000	$facedata = Coro::Storable::thaw $facedata;
2137	modified. After modifications, you have to call C<cf::db_dirty> or
2138	C<cf::db_sync>.
2139		3001
2140	=item $value = cf::db_get $family => $key	3002	$facedata->{version} == 2
		3003	or cf::cleanup "$path: version mismatch, cannot proceed.";
2141		3004
2142	Returns a single value from the database	3005	# patch in the exptable
2143		3006	$facedata->{resource}{"res/exp_table"} = {
2144	=item cf::db_put $family => $hashref	3007	type => FT_RSRC,
2145		3008	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	});	3009	};
		3010	cf::cede_to_tick;
2195		3011
2196	sub db_dirty() {
2197	$dirty = 1;
2198	$idle->start;
2199	}	3012	{
		3013	my $faces = $facedata->{faceinfo};
2200		3014
2201	sub db_get($;$) {	3015	while (my ($face, $info) = each %$faces) {
2202	@_ >= 2	3016	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2203	? $DB->{$_[0]}{$_[1]}	3017	cf::face::set_visibility $idx, $info->{visibility};
2204	: ($DB->{$_[0]} ||= { })	3018	cf::face::set_magicmap $idx, $info->{magicmap};
2205	}	3019	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3020	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2206		3021
2207	sub db_put($$;$) {	3022	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	},	3023	}
2221	);
2222	}
2223		3024
2224	#############################################################################	3025	while (my ($face, $info) = each %$faces) {
2225	# the server's main()	3026	next unless $info->{smooth};
		3027	my $idx = cf::face::find $face
		3028	or next;
		3029	if (my $smooth = cf::face::find $info->{smooth}) {
		3030	cf::face::set_smooth $idx, $smooth;
		3031	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3032	} else {
		3033	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3034	}
2226		3035
2227	sub cfg_load {	3036	cf::cede_to_tick;
		3037	}
		3038	}
		3039
		3040	{
		3041	my $anims = $facedata->{animinfo};
		3042
		3043	while (my ($anim, $info) = each %$anims) {
		3044	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3045	cf::cede_to_tick;
		3046	}
		3047
		3048	cf::anim::invalidate_all; # d'oh
		3049	}
		3050
		3051	{
		3052	# TODO: for gcfclient pleasure, we should give resources
		3053	# that gcfclient doesn't grok a >10000 face index.
		3054	my $res = $facedata->{resource};
		3055
		3056	my $soundconf = delete $res->{"res/sound.conf"};
		3057
		3058	while (my ($name, $info) = each %$res) {
		3059	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3060	my $data;
		3061
		3062	if ($info->{type} & 1) {
		3063	# prepend meta info
		3064
		3065	my $meta = $enc->encode ({
		3066	name => $name,
		3067	%{ $info->{meta} || {} },
		3068	});
		3069
		3070	$data = pack "(w/a*)*", $meta, $info->{data};
		3071	} else {
		3072	$data = $info->{data};
		3073	}
		3074
		3075	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3076	cf::face::set_type $idx, $info->{type};
		3077
		3078	cf::cede_to_tick;
		3079	}
		3080
		3081	if ($soundconf) {
		3082	$soundconf = $enc->decode (delete $soundconf->{data});
		3083
		3084	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3085	my $sound = $soundconf->{compat}[$_]
		3086	or next;
		3087
		3088	my $face = cf::face::find "sound/$sound->[1]";
		3089	cf::sound::set $sound->[0] => $face;
		3090	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3091	}
		3092
		3093	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3094	my $face = cf::face::find "sound/$v";
		3095	cf::sound::set $k => $face;
		3096	}
		3097	}
		3098	}
		3099
		3100	1
		3101	}
		3102
		3103	register_exticmd fx_want => sub {
		3104	my ($ns, $want) = @_;
		3105
		3106	while (my ($k, $v) = each %$want) {
		3107	$ns->fx_want ($k, $v);
		3108	}
		3109	};
		3110
		3111	sub reload_regions {
		3112	# HACK to clear player env face cache, we need some signal framework
		3113	# for this (global event?)
		3114	%ext::player_env::MUSIC_FACE_CACHE = ();
		3115
		3116	load_resource_file "$MAPDIR/regions"
		3117	or die "unable to load regions file\n";
		3118
		3119	for (cf::region::list) {
		3120	$_->{match} = qr/$_->{match}/
		3121	if exists $_->{match};
		3122	}
		3123	}
		3124
		3125	sub reload_facedata {
		3126	load_facedata "$DATADIR/facedata"
		3127	or die "unable to load facedata\n";
		3128	}
		3129
		3130	sub reload_archetypes {
		3131	load_resource_file "$DATADIR/archetypes"
		3132	or die "unable to load archetypes\n";
		3133	#d# NEED to laod twice to resolve forward references
		3134	# this really needs to be done in an extra post-pass
		3135	# (which needs to be synchronous, so solve it differently)
		3136	load_resource_file "$DATADIR/archetypes"
		3137	or die "unable to load archetypes\n";
		3138	}
		3139
		3140	sub reload_treasures {
		3141	load_resource_file "$DATADIR/treasures"
		3142	or die "unable to load treasurelists\n";
		3143	}
		3144
		3145	sub reload_resources {
		3146	warn "reloading resource files...\n";
		3147
		3148	reload_regions;
		3149	reload_facedata;
		3150	#reload_archetypes;#d#
		3151	reload_archetypes;
		3152	reload_treasures;
		3153
		3154	warn "finished reloading resource files\n";
		3155	}
		3156
		3157	sub init {
		3158	reload_resources;
		3159	}
		3160
		3161	sub reload_config {
2228	open my $fh, "<:utf8", cf::confdir . "/config"	3162	open my $fh, "<:utf8", "$CONFDIR/config"
2229	or return;	3163	or return;
2230		3164
2231	local $/;	3165	local $/;
2232	*CFG = YAML::Syck::Load <$fh>;	3166	*CFG = YAML::Syck::Load <$fh>;
2233		3167
…		…
2247		3181
2248	sub main {	3182	sub main {
2249	# we must not ever block the main coroutine	3183	# we must not ever block the main coroutine
2250	local $Coro::idle = sub {	3184	local $Coro::idle = sub {
2251	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3185	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3186	(async {
2252	async { Event::one_event };	3187	Event::one_event;
		3188	})->prio (Coro::PRIO_MAX);
2253	};	3189	};
2254		3190
2255	cfg_load;	3191	reload_config;
2256	db_load;	3192	db_init;
2257	load_extensions;	3193	load_extensions;
		3194
		3195	$TICK_WATCHER->start;
2258	Event::loop;	3196	Event::loop;
2259	}	3197	}
2260		3198
2261	#############################################################################	3199	#############################################################################
2262	# initialisation and cleanup	3200	# initialisation and cleanup
2263		3201
2264	# install some emergency cleanup handlers	3202	# install some emergency cleanup handlers
2265	BEGIN {	3203	BEGIN {
2266	for my $signal (qw(INT HUP TERM)) {	3204	for my $signal (qw(INT HUP TERM)) {
2267	Event->signal (	3205	Event->signal (
		3206	reentrant => 0,
2268	data => WF_AUTOCANCEL,	3207	data => WF_AUTOCANCEL,
2269	signal => $signal,	3208	signal => $signal,
		3209	prio => 0,
2270	cb => sub {	3210	cb => sub {
2271	cf::cleanup "SIG$signal";	3211	cf::cleanup "SIG$signal";
2272	},	3212	},
2273	);	3213	);
2274	}	3214	}
2275	}	3215	}
2276		3216
		3217	sub write_runtime {
		3218	my $runtime = "$LOCALDIR/runtime";
		3219
		3220	# first touch the runtime file to show we are still running:
		3221	# the fsync below can take a very very long time.
		3222
		3223	IO::AIO::aio_utime $runtime, undef, undef;
		3224
		3225	my $guard = cf::lock_acquire "write_runtime";
		3226
		3227	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3228	or return;
		3229
		3230	my $value = $cf::RUNTIME + 90 + 10;
		3231	# 10 is the runtime save interval, for a monotonic clock
		3232	# 60 allows for the watchdog to kill the server.
		3233
		3234	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3235	and return;
		3236
		3237	# always fsync - this file is important
		3238	aio_fsync $fh
		3239	and return;
		3240
		3241	# touch it again to show we are up-to-date
		3242	aio_utime $fh, undef, undef;
		3243
		3244	close $fh
		3245	or return;
		3246
		3247	aio_rename "$runtime~", $runtime
		3248	and return;
		3249
		3250	warn "runtime file written.\n";
		3251
		3252	1
		3253	}
		3254
2277	sub emergency_save() {	3255	sub emergency_save() {
2278	my $freeze_guard = cf::freeze_mainloop;	3256	my $freeze_guard = cf::freeze_mainloop;
2279		3257
2280	warn "enter emergency perl save\n";	3258	warn "enter emergency perl save\n";
2281		3259
2282	cf::sync_job {	3260	cf::sync_job {
2283	# use a peculiar iteration method to avoid tripping on perl	3261	# use a peculiar iteration method to avoid tripping on perl
2284	# refcount bugs in for. also avoids problems with players	3262	# refcount bugs in for. also avoids problems with players
2285	# and maps saved/Destroyed asynchronously.	3263	# and maps saved/destroyed asynchronously.
2286	warn "begin emergency player save\n";	3264	warn "begin emergency player save\n";
2287	for my $login (keys %cf::PLAYER) {	3265	for my $login (keys %cf::PLAYER) {
2288	my $pl = $cf::PLAYER{$login} or next;	3266	my $pl = $cf::PLAYER{$login} or next;
2289	$pl->valid or next;	3267	$pl->valid or next;
2290	$pl->save;	3268	$pl->save;
…		…
2296	my $map = $cf::MAP{$path} or next;	3274	my $map = $cf::MAP{$path} or next;
2297	$map->valid or next;	3275	$map->valid or next;
2298	$map->save;	3276	$map->save;
2299	}	3277	}
2300	warn "end emergency map save\n";	3278	warn "end emergency map save\n";
		3279
		3280	warn "begin emergency database checkpoint\n";
		3281	BDB::db_env_txn_checkpoint $DB_ENV;
		3282	warn "end emergency database checkpoint\n";
2301	};	3283	};
2302		3284
2303	warn "leave emergency perl save\n";	3285	warn "leave emergency perl save\n";
2304	}	3286	}
2305		3287
		3288	sub post_cleanup {
		3289	my ($make_core) = @_;
		3290
		3291	warn Carp::longmess "post_cleanup backtrace"
		3292	if $make_core;
		3293	}
		3294
2306	sub reload() {	3295	sub do_reload_perl() {
2307	# can/must only be called in main	3296	# can/must only be called in main
2308	if ($Coro::current != $Coro::main) {	3297	if ($Coro::current != $Coro::main) {
2309	warn "can only reload from main coroutine\n";	3298	warn "can only reload from main coroutine";
2310	return;	3299	return;
2311	}	3300	}
2312		3301
2313	warn "reloading...";	3302	warn "reloading...";
2314		3303
2315	warn "freezing server";	3304	warn "entering sync_job";
2316	my $guard = freeze_mainloop;	3305
		3306	cf::sync_job {
		3307	cf::write_runtime; # external watchdog should not bark
2317	cf::emergency_save;	3308	cf::emergency_save;
		3309	cf::write_runtime; # external watchdog should not bark
2318		3310
2319	warn "sync database to disk";	3311	warn "syncing database to disk";
2320	cf::db_sync;	3312	BDB::db_env_txn_checkpoint $DB_ENV;
2321	IO::AIO::flush;
2322		3313
2323	eval {
2324	# if anything goes wrong in here, we should simply crash as we already saved	3314	# if anything goes wrong in here, we should simply crash as we already saved
2325		3315
2326	warn "cancel all watchers";	3316	warn "cancelling all WF_AUTOCANCEL watchers";
2327	for (Event::all_watchers) {	3317	for (Event::all_watchers) {
2328	$_->cancel if $_->data & WF_AUTOCANCEL;	3318	$_->cancel if $_->data & WF_AUTOCANCEL;
2329	}	3319	}
2330		3320
		3321	warn "flushing outstanding aio requests";
		3322	for (;;) {
		3323	BDB::flush;
		3324	IO::AIO::flush;
		3325	Coro::cede;
		3326	last unless IO::AIO::nreqs || BDB::nreqs;
		3327	warn "iterate...";
		3328	}
		3329
		3330	++$RELOAD;
		3331
2331	warn "cancel all extension coros";	3332	warn "cancelling all extension coros";
2332	$_->cancel for values %EXT_CORO;	3333	$_->cancel for values %EXT_CORO;
2333	%EXT_CORO = ();	3334	%EXT_CORO = ();
2334		3335
2335	warn "remove commands";	3336	warn "removing commands";
2336	%COMMAND = ();	3337	%COMMAND = ();
2337		3338
2338	warn "remove ext commands";	3339	warn "removing ext/exti commands";
2339	%EXTCMD = ();	3340	%EXTCMD = ();
		3341	%EXTICMD = ();
2340		3342
2341	warn "unload/nuke all extensions";	3343	warn "unloading/nuking all extensions";
2342	for my $pkg (@EXTS) {	3344	for my $pkg (@EXTS) {
2343	warn "... unloading $pkg";	3345	warn "... unloading $pkg";
2344		3346
2345	if (my $cb = $pkg->can ("unload")) {	3347	if (my $cb = $pkg->can ("unload")) {
2346	eval {	3348	eval {
…		…
2351		3353
2352	warn "... nuking $pkg";	3354	warn "... nuking $pkg";
2353	Symbol::delete_package $pkg;	3355	Symbol::delete_package $pkg;
2354	}	3356	}
2355		3357
2356	warn "unload all perl modules loaded from $LIBDIR";	3358	warn "unloading all perl modules loaded from $LIBDIR";
2357	while (my ($k, $v) = each %INC) {	3359	while (my ($k, $v) = each %INC) {
2358	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3360	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2359		3361
2360	warn "removing <$k>";	3362	warn "... unloading $k";
2361	delete $INC{$k};	3363	delete $INC{$k};
2362		3364
2363	$k =~ s/\.pm$//;	3365	$k =~ s/\.pm$//;
2364	$k =~ s/\//::/g;	3366	$k =~ s/\//::/g;
2365		3367
…		…
2368	}	3370	}
2369		3371
2370	Symbol::delete_package $k;	3372	Symbol::delete_package $k;
2371	}	3373	}
2372		3374
2373	warn "get rid of safe::, as good as possible";	3375	warn "getting rid of safe::, as good as possible";
2374	Symbol::delete_package "safe::$_"	3376	Symbol::delete_package "safe::$_"
2375	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3377	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2376		3378
2377	warn "unload cf.pm \"a bit\"";	3379	warn "unloading cf.pm \"a bit\"";
2378	delete $INC{"cf.pm"};	3380	delete $INC{"cf.pm"};
		3381	delete $INC{"cf/pod.pm"};
2379		3382
2380	# don't, removes xs symbols, too,	3383	# don't, removes xs symbols, too,
2381	# and global variables created in xs	3384	# and global variables created in xs
2382	#Symbol::delete_package __PACKAGE__;	3385	#Symbol::delete_package __PACKAGE__;
2383		3386
		3387	warn "unload completed, starting to reload now";
		3388
2384	warn "reloading cf.pm";	3389	warn "reloading cf.pm";
2385	require cf;	3390	require cf;
2386	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3391	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2387		3392
2388	warn "load config and database again";	3393	warn "loading config and database again";
2389	cf::cfg_load;	3394	cf::reload_config;
2390	cf::db_load;
2391		3395
2392	warn "load extensions";	3396	warn "loading extensions";
2393	cf::load_extensions;	3397	cf::load_extensions;
2394		3398
2395	warn "reattach attachments to objects/players";	3399	warn "reattaching attachments to objects/players";
2396	_global_reattach;	3400	_global_reattach; # objects, sockets
2397	warn "reattach attachments to maps";	3401	warn "reattaching attachments to maps";
2398	reattach $_ for values %MAP;	3402	reattach $_ for values %MAP;
2399	};	3403	warn "reattaching attachments to players";
		3404	reattach $_ for values %PLAYER;
2400		3405
2401	if ($@) {	3406	warn "leaving sync_job";
		3407
		3408	1
		3409	} or do {
2402	warn $@;	3410	warn $@;
2403	warn "error while reloading, exiting.";	3411	warn "error while reloading, exiting.";
2404	exit 1;	3412	exit 1;
2405	}	3413	};
2406		3414
2407	warn "reloaded";	3415	warn "reloaded";
2408	};	3416	};
2409		3417
2410	#############################################################################	3418	our $RELOAD_WATCHER; # used only during reload
2411		3419
2412	unless ($LINK_MAP) {	3420	sub reload_perl() {
2413	$LINK_MAP = cf::map::new;	3421	# doing reload synchronously and two reloads happen back-to-back,
		3422	# coro crashes during coro_state_free->destroy here.
2414		3423
2415	$LINK_MAP->width (41);	3424	$RELOAD_WATCHER ||= Event->timer (
2416	$LINK_MAP->height (41);	3425	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,	3426	after => 0,
		3427	data => WF_AUTOCANCEL,
2425	cb => sub {	3428	cb => sub {
2426	$_[0]->w->cancel;	3429	do_reload_perl;
2427		3430	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	});	3431	},
2446		3432	);
2447	$LINK_MAP->{deny_save} = 1;
2448	$LINK_MAP->{deny_reset} = 1;
2449
2450	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2451	}	3433	}
2452		3434
2453	register_command "reload" => sub {	3435	register_command "reload" => sub {
2454	my ($who, $arg) = @_;	3436	my ($who, $arg) = @_;
2455		3437
2456	if ($who->flag (FLAG_WIZ)) {	3438	if ($who->flag (FLAG_WIZ)) {
2457	$who->message ("start of reload.");
2458	reload;
2459	$who->message ("end of reload.");	3439	$who->message ("reloading server.");
		3440	async { reload_perl };
2460	}	3441	}
2461	};	3442	};
2462		3443
2463	unshift @INC, $LIBDIR;	3444	unshift @INC, $LIBDIR;
		3445
		3446	my $bug_warning = 0;
		3447
		3448	our @WAIT_FOR_TICK;
		3449	our @WAIT_FOR_TICK_BEGIN;
		3450
		3451	sub wait_for_tick {
		3452	return unless $TICK_WATCHER->is_active;
		3453	return if $Coro::current == $Coro::main;
		3454
		3455	my $signal = new Coro::Signal;
		3456	push @WAIT_FOR_TICK, $signal;
		3457	$signal->wait;
		3458	}
		3459
		3460	sub wait_for_tick_begin {
		3461	return unless $TICK_WATCHER->is_active;
		3462	return if $Coro::current == $Coro::main;
		3463
		3464	my $signal = new Coro::Signal;
		3465	push @WAIT_FOR_TICK_BEGIN, $signal;
		3466	$signal->wait;
		3467	}
2464		3468
2465	$TICK_WATCHER = Event->timer (	3469	$TICK_WATCHER = Event->timer (
2466	reentrant => 0,	3470	reentrant => 0,
		3471	parked => 1,
2467	prio => 0,	3472	prio => 0,
2468	at => $NEXT_TICK || $TICK,	3473	at => $NEXT_TICK || $TICK,
2469	data => WF_AUTOCANCEL,	3474	data => WF_AUTOCANCEL,
2470	cb => sub {	3475	cb => sub {
		3476	if ($Coro::current != $Coro::main) {
		3477	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3478	unless ++$bug_warning > 10;
		3479	return;
		3480	}
		3481
		3482	$NOW = $tick_start = Event::time;
		3483
2471	cf::server_tick; # one server iteration	3484	cf::server_tick; # one server iteration
		3485
2472	$RUNTIME += $TICK;	3486	$RUNTIME += $TICK;
2473	$NEXT_TICK += $TICK;	3487	$NEXT_TICK += $TICK;
2474		3488
2475	$WAIT_FOR_TICK->broadcast;	3489	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2476	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3490	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3491	Coro::async_pool {
		3492	write_runtime
		3493	or warn "ERROR: unable to write runtime file: $!";
		3494	};
		3495	}
		3496
		3497	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3498	$sig->send;
		3499	}
		3500	while (my $sig = shift @WAIT_FOR_TICK) {
		3501	$sig->send;
		3502	}
		3503
		3504	$NOW = Event::time;
2477		3505
2478	# if we are delayed by four ticks or more, skip them all	3506	# if we are delayed by four ticks or more, skip them all
2479	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3507	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2480		3508
2481	$TICK_WATCHER->at ($NEXT_TICK);	3509	$TICK_WATCHER->at ($NEXT_TICK);
2482	$TICK_WATCHER->start;	3510	$TICK_WATCHER->start;
		3511
		3512	$LOAD = ($NOW - $tick_start) / $TICK;
		3513	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3514
		3515	_post_tick;
2483	},	3516	},
2484	);	3517	);
2485		3518
		3519	{
		3520	BDB::min_parallel 8;
2486	IO::AIO::max_poll_time $TICK * 0.2;	3521	BDB::max_poll_time $TICK * 0.1;
2487		3522	$BDB_POLL_WATCHER = Event->io (
2488	Event->io (	3523	reentrant => 0,
2489	fd => IO::AIO::poll_fileno,	3524	fd => BDB::poll_fileno,
2490	poll => 'r',	3525	poll => 'r',
2491	prio => 5,	3526	prio => 0,
2492	data => WF_AUTOCANCEL,
2493	cb => \&IO::AIO::poll_cb,
2494	);
2495
2496	Event->timer (
2497	data => WF_AUTOCANCEL,	3527	data => WF_AUTOCANCEL,
		3528	cb => \&BDB::poll_cb,
		3529	);
		3530
		3531	BDB::set_sync_prepare {
		3532	my $status;
		3533	my $current = $Coro::current;
		3534	(
		3535	sub {
		3536	$status = $!;
		3537	$current->ready; undef $current;
		3538	},
		3539	sub {
		3540	Coro::schedule while defined $current;
		3541	$! = $status;
		3542	},
		3543	)
		3544	};
		3545
		3546	unless ($DB_ENV) {
		3547	$DB_ENV = BDB::db_env_create;
		3548	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3549	| BDB::LOG_AUTOREMOVE, 1);
		3550	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3551	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3552
		3553	cf::sync_job {
		3554	eval {
		3555	BDB::db_env_open
		3556	$DB_ENV,
		3557	$BDBDIR,
		3558	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3559	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3560	0666;
		3561
		3562	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3563	};
		3564
		3565	cf::cleanup "db_env_open(db): $@" if $@;
		3566	};
		3567	}
		3568
		3569	$BDB_DEADLOCK_WATCHER = Event->timer (
2498	after => 0,	3570	after => 3,
2499	interval => 10,	3571	interval => 1,
		3572	hard => 1,
		3573	prio => 0,
		3574	data => WF_AUTOCANCEL,
2500	cb => sub {	3575	cb => sub {
2501	(Coro::unblock_sub {	3576	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2502	write_runtime	3577	},
2503	or warn "ERROR: unable to write runtime file: $!";	3578	);
		3579	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3580	after => 11,
		3581	interval => 60,
		3582	hard => 1,
		3583	prio => 0,
		3584	data => WF_AUTOCANCEL,
		3585	cb => sub {
		3586	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3587	},
		3588	);
		3589	$BDB_TRICKLE_WATCHER = Event->timer (
		3590	after => 5,
		3591	interval => 10,
		3592	hard => 1,
		3593	prio => 0,
		3594	data => WF_AUTOCANCEL,
		3595	cb => sub {
		3596	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3597	},
		3598	);
		3599	}
		3600
		3601	{
		3602	IO::AIO::min_parallel 8;
		3603
		3604	undef $Coro::AIO::WATCHER;
		3605	IO::AIO::max_poll_time $TICK * 0.1;
		3606	$AIO_POLL_WATCHER = Event->io (
		3607	reentrant => 0,
		3608	data => WF_AUTOCANCEL,
		3609	fd => IO::AIO::poll_fileno,
		3610	poll => 'r',
		3611	prio => 6,
		3612	cb => \&IO::AIO::poll_cb,
		3613	);
		3614	}
		3615
		3616	my $_log_backtrace;
		3617
		3618	sub _log_backtrace {
		3619	my ($msg, @addr) = @_;
		3620
		3621	$msg =~ s/\n//;
		3622
		3623	# limit the # of concurrent backtraces
		3624	if ($_log_backtrace < 2) {
		3625	++$_log_backtrace;
		3626	async {
		3627	my @bt = fork_call {
		3628	@addr = map { sprintf "%x", $_ } @addr;
		3629	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3630	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3631	or die "addr2line: $!";
		3632
		3633	my @funcs;
		3634	my @res = <$fh>;
		3635	chomp for @res;
		3636	while (@res) {
		3637	my ($func, $line) = splice @res, 0, 2, ();
		3638	push @funcs, "[$func] $line";
		3639	}
		3640
		3641	@funcs
		3642	};
		3643
		3644	LOG llevInfo, "[ABT] $msg\n";
		3645	LOG llevInfo, "[ABT] $_\n" for @bt;
		3646	--$_log_backtrace;
2504	})->();	3647	};
		3648	} else {
		3649	LOG llevInfo, "[ABT] $msg\n";
		3650	LOG llevInfo, "[ABT] [suppressed]\n";
2505	},	3651	}
2506	);	3652	}
		3653
		3654	# load additional modules
		3655	use cf::pod;
2507		3656
2508	END { cf::emergency_save }	3657	END { cf::emergency_save }
2509		3658
2510	1	3659	1
2511		3660

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