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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.163 by root, Thu Jan 11 01:01:56 2007 UTC vs.
Revision 1.371 by root, Thu Sep 13 16:16:01 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.64 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
		24	use Coro::Util ();
19		25
		26	use JSON::XS ();
		27	use BDB ();
20	use Data::Dumper;	28	use Data::Dumper;
21	use Digest::MD5;	29	use Digest::MD5;
22	use Fcntl;	30	use Fcntl;
		31	use YAML::Syck ();
23	use IO::AIO 2.32 ();	32	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
26		36
		37	# configure various modules to our taste
		38	#
		39	$Storable::canonical = 1; # reduce rsync transfers
		40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		42
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	43	$Event::Eval = 1; # no idea why this is required, but it is
28
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		44
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	45	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
33		47
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	48	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		49
		50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		51
36	our %COMMAND = ();	52	our %COMMAND = ();
37	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
38		54
39	our @EXTS = (); # list of extension package names	55	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	58	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	59	our %EXT_MAP = (); # pluggable maps
43		60
		61	our $RELOAD; # number of reloads so far
44	our @EVENT;	62	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		63
47	our $TICK = MAX_TIME * 1e-6;	64	our $CONFDIR = confdir;
		65	our $DATADIR = datadir;
		66	our $LIBDIR = "$DATADIR/ext";
		67	our $PODDIR = "$DATADIR/pod";
		68	our $MAPDIR = "$DATADIR/" . mapdir;
		69	our $LOCALDIR = localdir;
		70	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		71	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		72	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		73	our $RANDOMDIR = "$LOCALDIR/random";
		74	our $BDBDIR = "$LOCALDIR/db";
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
49	our $NEXT_TICK;	80	our $NEXT_TICK;
50	our $NOW;	81	our $NOW;
		82	our $USE_FSYNC = 1; # use fsync to write maps - default off
		83
		84	our $BDB_POLL_WATCHER;
		85	our $BDB_DEADLOCK_WATCHER;
		86	our $BDB_CHECKPOINT_WATCHER;
		87	our $BDB_TRICKLE_WATCHER;
		88	our $DB_ENV;
51		89
52	our %CFG;	90	our %CFG;
53		91
54	our $UPTIME; $UPTIME ||= time;	92	our $UPTIME; $UPTIME ||= time;
55	our $RUNTIME;	93	our $RUNTIME;
56		94
57	our %PLAYER; # all users	95	our (%PLAYER, %PLAYER_LOADING); # all users
58	our %MAP; # all maps	96	our (%MAP, %MAP_LOADING ); # all maps
59	our $LINK_MAP; # the special {link} map	97	our $LINK_MAP; # the special {link} map, which is always available
60	our $RANDOM_MAPS = cf::localdir . "/random";
61		98
62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	99	# used to convert map paths into valid unix filenames by replacing / by ∕
63	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	100	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		101
		102	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		103	our $LOADAVG; # same thing, but with alpha-smoothing
		104	our $tick_start; # for load detecting purposes
64		105
65	binmode STDOUT;	106	binmode STDOUT;
66	binmode STDERR;	107	binmode STDERR;
67		108
68	# read virtual server time, if available	109	# read virtual server time, if available
69	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
70	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
71	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
72	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
73	}	114	}
74		115
75	mkdir cf::localdir;	116	mkdir $_
76	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
77	mkdir cf::localdir . "/" . cf::tmpdir;
78	mkdir cf::localdir . "/" . cf::uniquedir;
79	mkdir $RANDOM_MAPS;
80		118
81	# a special map that is always available
82	our $LINK_MAP;
83	our $EMERGENCY_POSITION;	119	our $EMERGENCY_POSITION;
		120
		121	sub cf::map::normalise;
84		122
85	#############################################################################	123	#############################################################################
86		124
87	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
88		126
…		…
95	=item $cf::RUNTIME	133	=item $cf::RUNTIME
96		134
97	The time this server has run, starts at 0 and is increased by $cf::TICK on	135	The time this server has run, starts at 0 and is increased by $cf::TICK on
98	every server tick.	136	every server tick.
99		137
100	=item $cf::LIBDIR	138	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		139	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		140	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
101		141
102	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
103	be found. It will be added to C<@INC> automatically.	143	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		144	unique-items directory, player file directory, random maps directory and
		145	database environment.
104		146
105	=item $cf::NOW	147	=item $cf::NOW
106		148
107	The time of the last (current) server tick.	149	The time of the last (current) server tick.
108		150
109	=item $cf::TICK	151	=item $cf::TICK
110		152
111	The interval between server ticks, in seconds.	153	The interval between server ticks, in seconds.
		154
		155	=item $cf::LOADAVG
		156
		157	The current CPU load on the server (alpha-smoothed), as a value between 0
		158	(none) and 1 (overloaded), indicating how much time is spent on processing
		159	objects per tick. Healthy values are < 0.5.
		160
		161	=item $cf::LOAD
		162
		163	The raw value load value from the last tick.
112		164
113	=item %cf::CFG	165	=item %cf::CFG
114		166
115	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/crossfire/config>, or
116	from wherever your confdir points to.	168	from wherever your confdir points to.
117		169
118	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	170	=item cf::wait_for_tick, cf::wait_for_tick_begin
119		171
120	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	172	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
121	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	173	returns directly I<after> the tick processing (and consequently, can only wake one process
122	processing has been done. Call C<< ->wait >> on them to maximise the	174	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
123	window of cpu time available, or simply to synchronise to the server tick.	175
		176	=item @cf::INVOKE_RESULTS
		177
		178	This array contains the results of the last C<invoke ()> call. When
		179	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		180	that call.
124		181
125	=back	182	=back
126		183
127	=cut	184	=cut
128		185
129	BEGIN {	186	BEGIN {
130	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
131	my $msg = join "", @_;	188	my $msg = join "", @_;
132	utf8::encode $msg;
133		189
134	$msg .= "\n"	190	$msg .= "\n"
135	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
136		194
137	LOG llevError, $msg;	195	LOG llevError, $msg;
138	};	196	};
139	}	197	}
140		198
141	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
142	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
143	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
144	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
145	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	203	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		204	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
146	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	205	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
147		206
148	# we bless all objects into (empty) derived classes to force a method lookup	207	# we bless all objects into (empty) derived classes to force a method lookup
149	# within the Safe compartment.	208	# within the Safe compartment.
150	for my $pkg (qw(	209	for my $pkg (qw(
151	cf::global cf::attachable	210	cf::global cf::attachable
…		…
159	}	218	}
160		219
161	$Event::DIED = sub {	220	$Event::DIED = sub {
162	warn "error in event callback: @_";	221	warn "error in event callback: @_";
163	};	222	};
		223
		224	#############################################################################
164		225
165	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
166		227
167	=over 4	228	=over 4
168		229
…		…
187	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	248	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
188	$d	249	$d
189	} || "[unable to dump $_[0]: '$@']";	250	} || "[unable to dump $_[0]: '$@']";
190	}	251	}
191		252
192	use JSON::Syck (); # TODO# replace by JSON::PC once working
193
194	=item $ref = cf::from_json $json	253	=item $ref = cf::from_json $json
195		254
196	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
197		256
198	=cut
199
200	sub from_json($) {
201	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
202	JSON::Syck::Load $_[0]
203	}
204
205	=item $json = cf::to_json $ref	257	=item $json = cf::to_json $ref
206		258
207	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
208		260
209	=cut	261	=cut
210		262
211	sub to_json($) {	263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
212	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	264
213	JSON::Syck::Dump $_[0]	265	sub to_json ($) { $json_coder->encode ($_[0]) }
214	}	266	sub from_json ($) { $json_coder->decode ($_[0]) }
215		267
216	=item cf::lock_wait $string	268	=item cf::lock_wait $string
217		269
218	Wait until the given lock is available. See cf::lock_acquire.	270	Wait until the given lock is available. See cf::lock_acquire.
219		271
…		…
222	Wait until the given lock is available and then acquires it and returns	274	Wait until the given lock is available and then acquires it and returns
223	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	275	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
224	for example when the coroutine gets canceled), the lock is automatically	276	for example when the coroutine gets canceled), the lock is automatically
225	returned.	277	returned.
226		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
227	Lock names should begin with a unique identifier (for example, cf::map::find	282	Lock names should begin with a unique identifier (for example, cf::map::find
228	uses map_find and cf::map::load uses map_load).	283	uses map_find and cf::map::load uses map_load).
229		284
		285	=item $locked = cf::lock_active $string
		286
		287	Return true if the lock is currently active, i.e. somebody has locked it.
		288
230	=cut	289	=cut
231		290
232	our %LOCK;	291	our %LOCK;
		292	our %LOCKER;#d#
233		293
234	sub lock_wait($) {	294	sub lock_wait($) {
235	my ($key) = @_;	295	my ($key) = @_;
		296
		297	if ($LOCKER{$key} == $Coro::current) {#d#
		298	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		299	return;#d#
		300	}#d#
236		301
237	# wait for lock, if any	302	# wait for lock, if any
238	while ($LOCK{$key}) {	303	while ($LOCK{$key}) {
239	push @{ $LOCK{$key} }, $Coro::current;	304	push @{ $LOCK{$key} }, $Coro::current;
240	Coro::schedule;	305	Coro::schedule;
…		…
246		311
247	# wait, to be sure we are not locked	312	# wait, to be sure we are not locked
248	lock_wait $key;	313	lock_wait $key;
249		314
250	$LOCK{$key} = [];	315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
251		317
252	Coro::guard {	318	Coro::guard {
		319	delete $LOCKER{$key};#d#
253	# wake up all waiters, to be on the safe side	320	# wake up all waiters, to be on the safe side
254	$_->ready for @{ delete $LOCK{$key} };	321	$_->ready for @{ delete $LOCK{$key} };
255	}	322	}
256	}	323	}
257		324
		325	sub lock_active($) {
		326	my ($key) = @_;
		327
		328	! ! $LOCK{$key}
		329	}
		330
258	sub freeze_mainloop {	331	sub freeze_mainloop {
259	return unless $TICK_WATCHER->is_active;	332	return unless $TICK_WATCHER->is_active;
260		333
261	my $guard = Coro::guard { $TICK_WATCHER->start };	334	my $guard = Coro::guard {
		335	$TICK_WATCHER->start;
		336	};
262	$TICK_WATCHER->stop;	337	$TICK_WATCHER->stop;
263	$guard	338	$guard
		339	}
		340
		341	=item cf::get_slot $time[, $priority[, $name]]
		342
		343	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		344	This call blocks and returns only when you have at least C<$time> seconds
		345	of cpu time till the next tick. The slot is only valid till the next cede.
		346
		347	The optional C<$name> can be used to identify the job to run. It might be
		348	used for statistical purposes and should identify the same time-class.
		349
		350	Useful for short background jobs.
		351
		352	=cut
		353
		354	our @SLOT_QUEUE;
		355	our $SLOT_QUEUE;
		356
		357	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		358	$SLOT_QUEUE = Coro::async {
		359	my $signal = new Coro::Signal;
		360
		361	while () {
		362	next_job:
		363	my $avail = cf::till_tick;
		364	if ($avail > 0.01) {
		365	for (0 .. $#SLOT_QUEUE) {
		366	if ($SLOT_QUEUE[$_][0] < $avail) {
		367	my $job = splice @SLOT_QUEUE, $_, 1, ();
		368	$job->[2]->send;
		369	Coro::cede;
		370	goto next_job;
		371	}
		372	}
		373	}
		374
		375	if (@SLOT_QUEUE) {
		376	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		377	push @cf::WAIT_FOR_TICK, $signal;
		378	$signal->wait;
		379	} else {
		380	Coro::schedule;
		381	}
		382	}
		383	};
		384
		385	sub get_slot($;$$) {
		386	my ($time, $pri, $name) = @_;
		387
		388	$time = $TICK * .6 if $time > $TICK * .6;
		389	my $sig = new Coro::Signal;
		390
		391	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		392	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		393	$SLOT_QUEUE->ready;
		394	$sig->wait;
264	}	395	}
265		396
266	=item cf::async { BLOCK }	397	=item cf::async { BLOCK }
267		398
268	Currently the same as Coro::async_pool, meaning you cannot use	399	Currently the same as Coro::async_pool, meaning you cannot use
…		…
273		404
274	BEGIN { *async = \&Coro::async_pool }	405	BEGIN { *async = \&Coro::async_pool }
275		406
276	=item cf::sync_job { BLOCK }	407	=item cf::sync_job { BLOCK }
277		408
278	The design of crossfire+ requires that the main coro ($Coro::main) is	409	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
279	always able to handle events or runnable, as crossfire+ is only partly	410	is always able to handle events or runnable, as Crossfire TRT is only
280	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	411	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		412	acceptable.
281		413
282	If it must be done, put the blocking parts into C<sync_job>. This will run	414	If it must be done, put the blocking parts into C<sync_job>. This will run
283	the given BLOCK in another coroutine while waiting for the result. The	415	the given BLOCK in another coroutine while waiting for the result. The
284	server will be frozen during this time, so the block should either finish	416	server will be frozen during this time, so the block should either finish
285	fast or be very important.	417	fast or be very important.
…		…
288		420
289	sub sync_job(&) {	421	sub sync_job(&) {
290	my ($job) = @_;	422	my ($job) = @_;
291		423
292	if ($Coro::current == $Coro::main) {	424	if ($Coro::current == $Coro::main) {
		425	my $time = Event::time;
		426
293	# this is the main coro, too bad, we have to block	427	# this is the main coro, too bad, we have to block
294	# till the operation succeeds, freezing the server :/	428	# till the operation succeeds, freezing the server :/
295		429
296	# TODO: use suspend/resume instead	430	# TODO: use suspend/resume instead
297	# (but this is cancel-safe)	431	# (but this is cancel-safe)
…		…
308		442
309	while ($busy) {	443	while ($busy) {
310	Coro::cede or Event::one_event;	444	Coro::cede or Event::one_event;
311	}	445	}
312		446
		447	$time = Event::time - $time;
		448
		449	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		450	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		451
		452	$tick_start += $time; # do not account sync jobs to server load
		453
313	wantarray ? @res : $res[0]	454	wantarray ? @res : $res[0]
314	} else {	455	} else {
315	# we are in another coroutine, how wonderful, everything just works	456	# we are in another coroutine, how wonderful, everything just works
316		457
317	$job->()	458	$job->()
…		…
336	$EXT_CORO{$coro+0} = $coro;	477	$EXT_CORO{$coro+0} = $coro;
337		478
338	$coro	479	$coro
339	}	480	}
340		481
341	sub write_runtime {	482	=item fork_call { }, $args
342	my $runtime = cf::localdir . "/runtime";
343		483
344	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	484	Executes the given code block with the given arguments in a seperate
345	or return;	485	process, returning the results. Everything must be serialisable with
		486	Coro::Storable. May, of course, block. Note that the executed sub may
		487	never block itself or use any form of Event handling.
346		488
347	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	489	=cut
348	(aio_write $fh, 0, (length $value), $value, 0) <= 0
349	and return;
350		490
351	aio_fsync $fh	491	sub fork_call(&@) {
352	and return;	492	my ($cb, @args) = @_;
353		493
354	close $fh	494	# we seemingly have to make a local copy of the whole thing,
355	or return;	495	# otherwise perl prematurely frees the stuff :/
		496	# TODO: investigate and fix (likely this will be rather laborious)
356		497
357	aio_rename "$runtime~", $runtime	498	my @res = Coro::Util::fork_eval {
358	and return;	499	reset_signals;
		500	&$cb
		501	}, @args;
359		502
		503	wantarray ? @res : $res[-1]
		504	}
		505
		506	=item $value = cf::db_get $family => $key
		507
		508	Returns a single value from the environment database.
		509
		510	=item cf::db_put $family => $key => $value
		511
		512	Stores the given C<$value> in the family. It can currently store binary
		513	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		514
		515	=item $db = cf::db_table "name"
		516
		517	Create and/or open a new database table. The string must not be "db" and must be unique
		518	within each server.
		519
		520	=cut
		521
		522	sub db_table($) {
		523	my ($name) = @_;
		524	my $db = BDB::db_create $DB_ENV;
		525
		526	eval {
		527	$db->set_flags (BDB::CHKSUM);
		528
		529	utf8::encode $name;
		530	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		531	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		532	cf::cleanup "db_open(db): $!" if $!;
		533	};
		534	cf::cleanup "db_open(db): $@" if $@;
		535
		536	$db
		537	}
		538
		539	our $DB;
		540
		541	sub db_init {
		542	cf::sync_job {
		543	$DB ||= db_table "db";
		544	};
		545	}
		546
		547	sub db_get($$) {
		548	my $key = "$_[0]/$_[1]";
		549
		550	cf::sync_job {
		551	BDB::db_get $DB, undef, $key, my $data;
		552
		553	$! ? ()
		554	: $data
360	1	555	}
		556	}
		557
		558	sub db_put($$$) {
		559	BDB::dbreq_pri 4;
		560	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		561	}
		562
		563	=item cf::cache $id => [$paths...], $processversion => $process
		564
		565	Generic caching function that returns the value of the resource $id,
		566	caching and regenerating as required.
		567
		568	This function can block.
		569
		570	=cut
		571
		572	sub cache {
		573	my ($id, $src, $processversion, $process) = @_;
		574
		575	my $meta =
		576	join "\x00",
		577	$processversion,
		578	map {
		579	aio_stat $_
		580	and Carp::croak "$_: $!";
		581
		582	($_, (stat _)[7,9])
		583	} @$src;
		584
		585	my $dbmeta = db_get cache => "$id/meta";
		586	if ($dbmeta ne $meta) {
		587	# changed, we may need to process
		588
		589	my @data;
		590	my $md5;
		591
		592	for (0 .. $#$src) {
		593	0 <= aio_load $src->[$_], $data[$_]
		594	or Carp::croak "$src->[$_]: $!";
		595	}
		596
		597	# if processing is expensive, check
		598	# checksum first
		599	if (1) {
		600	$md5 =
		601	join "\x00",
		602	$processversion,
		603	map {
		604	cf::cede_to_tick;
		605	($src->[$_], Digest::MD5::md5_hex $data[$_])
		606	} 0.. $#$src;
		607
		608
		609	my $dbmd5 = db_get cache => "$id/md5";
		610	if ($dbmd5 eq $md5) {
		611	db_put cache => "$id/meta", $meta;
		612
		613	return db_get cache => "$id/data";
		614	}
		615	}
		616
		617	my $t1 = Time::HiRes::time;
		618	my $data = $process->(\@data);
		619	my $t2 = Time::HiRes::time;
		620
		621	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		622
		623	db_put cache => "$id/data", $data;
		624	db_put cache => "$id/md5" , $md5;
		625	db_put cache => "$id/meta", $meta;
		626
		627	return $data;
		628	}
		629
		630	db_get cache => "$id/data"
		631	}
		632
		633	=item cf::datalog type => key => value, ...
		634
		635	Log a datalog packet of the given type with the given key-value pairs.
		636
		637	=cut
		638
		639	sub datalog($@) {
		640	my ($type, %kv) = @_;
		641	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
361	}	642	}
362		643
363	=back	644	=back
364		645
365	=cut	646	=cut
366
367	#############################################################################
368
369	package cf::path;
370
371	use overload
372	'""' => \&as_string;
373
374	# used to convert map paths into valid unix filenames by repalcing / by ∕
375	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
376
377	sub register {
378	my ($pkg, $prefix) = @_;
379
380	$EXT_MAP{$prefix} = $pkg;
381	}
382
383	sub new {
384	my ($class, $path, $base) = @_;
385
386	return $path if ref $path;
387
388	my $self = {};
389
390	# {... are special paths that are not being touched
391	# ?xxx/... are special absolute paths
392	# ?random/... random maps
393	# /! non-realised random map exit
394	# /... normal maps
395	# ~/... per-player maps without a specific player (DO NOT USE)
396	# ~user/... per-player map of a specific user
397
398	$path =~ s/$PATH_SEP/\//go;
399
400	if ($path =~ /^{/) {
401	# fine as it is
402	} else {
403	if ($path =~ s{^~([^/]+)?}{}) {
404	# ~user
405	$self->{user_rel} = 1;
406
407	if (defined $1) {
408	$self->{user} = $1;
409	} elsif ($base =~ m{^~([^/]+)/}) {
410	$self->{user} = $1;
411	} else {
412	warn "cannot resolve user-relative path without user <$path,$base>\n";
413	}
414	} elsif ($path =~ s{^\?([^/]+)/}{}) {
415	# ?...
416	$self->{ext} = $1;
417	if (my $ext = $EXT_MAP{$1}) {
418	bless $self, $ext;
419	}
420	} elsif ($path =~ /^\//) {
421	# /...
422	# already absolute
423	} else {
424	# relative
425	$base =~ s{[^/]+/?$}{};
426	return $class->new ("$base/$path");
427	}
428
429	for ($path) {
430	redo if s{/\.?/}{/};
431	redo if s{/[^/]+/\.\./}{/};
432	}
433	}
434
435	$self->{path} = $path;
436
437	if ("HASH" eq ref $self) {
438	bless $self, $class;
439	} else {
440	$self->init;
441	}
442
443	for my $ext (values %EXT_MAP) {
444	if (my $subst = $ext->substitute ($self)) {
445	return $subst;
446	}
447	}
448
449	$self
450	}
451
452	sub init {
453	# nop
454	}
455
456	sub substitute {
457	()
458	}
459
460	# the name / primary key / in-game path
461	sub as_string {
462	my ($self) = @_;
463
464	$self->{user_rel} ? "~$self->{user}$self->{path}"
465	: $self->{ext} ? "?$self->{ext}/$self->{path}"
466	: $self->{path}
467	}
468
469	# the displayed name, this is a one way mapping
470	sub visible_name {
471	&as_string
472	}
473
474	# escape the /'s in the path
475	sub _escaped_path {
476	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
477
478	$path
479	}
480
481	# the original (read-only) location
482	sub load_path {
483	my ($self) = @_;
484
485	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
486	}
487
488	# the temporary/swap location
489	sub save_path {
490	my ($self) = @_;
491
492	$self->{user_rel}
493	? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
494	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
495	}
496
497	# the unique path, undef == no special unique path
498	sub uniq_path {
499	my ($self) = @_;
500
501	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
502	}
503
504	# this is somewhat ugly, but style maps do need special treatment
505	sub is_style_map {
506	$_[0]{path} =~ m{^/styles/}
507	}
508
509	sub load_orig {
510	my ($self) = @_;
511
512	&cf::map::load_map_header ($self->load_path)
513	}
514
515	sub load_temp {
516	my ($self) = @_;
517
518	&cf::map::load_map_header ($self->save_path)
519	}
520
521	package cf;
522		647
523	#############################################################################	648	#############################################################################
524		649
525	=head2 ATTACHABLE OBJECTS	650	=head2 ATTACHABLE OBJECTS
526		651
…		…
528	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")
529	to it. All such attachable objects support the following methods.	654	to it. All such attachable objects support the following methods.
530		655
531	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>
532	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
533	crossfire+).	658	Crossfire TRT).
534		659
535	=over 4	660	=over 4
536		661
537	=item $attachable->attach ($attachment, key => $value...)	662	=item $attachable->attach ($attachment, key => $value...)
538		663
…		…
652	our @CB_TYPE = (); # registry for type (cf-object class) based events	777	our @CB_TYPE = (); # registry for type (cf-object class) based events
653	our @CB_MAP = ();	778	our @CB_MAP = ();
654		779
655	my %attachment;	780	my %attachment;
656		781
		782	sub cf::attachable::thawer_merge {
		783	# simply override everything except _meta
		784	local $_[0]{_meta};
		785	%{$_[0]} = %{$_[1]};
		786	}
		787
657	sub _attach_cb($$$$) {	788	sub _attach_cb($$$$) {
658	my ($registry, $event, $prio, $cb) = @_;	789	my ($registry, $event, $prio, $cb) = @_;
659		790
660	use sort 'stable';	791	use sort 'stable';
661		792
…		…
695	$registry = $CB_TYPE[$object_type] ||= [];	826	$registry = $CB_TYPE[$object_type] ||= [];
696		827
697	} elsif ($type eq "subtype") {	828	} elsif ($type eq "subtype") {
698	defined $object_type or Carp::croak "subtype specified without type";	829	defined $object_type or Carp::croak "subtype specified without type";
699	my $object_subtype = shift @arg;	830	my $object_subtype = shift @arg;
700	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	831	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
701		832
702	} elsif ($type eq "package") {	833	} elsif ($type eq "package") {
703	my $pkg = shift @arg;	834	my $pkg = shift @arg;
704		835
705	while (my ($name, $id) = each %cb_id) {	836	while (my ($name, $id) = each %cb_id) {
…		…
734	_attach $registry, $klass, @attach;	865	_attach $registry, $klass, @attach;
735	}	866	}
736		867
737	$obj->{$name} = \%arg;	868	$obj->{$name} = \%arg;
738	} else {	869	} else {
739	warn "object uses attachment '$name' that is not available, postponing.\n";	870	warn "object uses attachment '$name' which is not available, postponing.\n";
740	}	871	}
741		872
742	$obj->{_attachment}{$name} = undef;	873	$obj->{_attachment}{$name} = undef;
743	}	874	}
744		875
…		…
746	if (ref $_[0]) {	877	if (ref $_[0]) {
747	_object_attach @_;	878	_object_attach @_;
748	} else {	879	} else {
749	_attach shift->_attach_registry, @_;	880	_attach shift->_attach_registry, @_;
750	}	881	}
		882	_recalc_want;
751	};	883	};
752		884
753	# all those should be optimised	885	# all those should be optimised
754	sub cf::attachable::detach {	886	sub cf::attachable::detach {
755	my ($obj, $name) = @_;	887	my ($obj, $name) = @_;
…		…
758	delete $obj->{_attachment}{$name};	890	delete $obj->{_attachment}{$name};
759	reattach ($obj);	891	reattach ($obj);
760	} else {	892	} else {
761	Carp::croak "cannot, currently, detach class attachments";	893	Carp::croak "cannot, currently, detach class attachments";
762	}	894	}
		895	_recalc_want;
763	};	896	};
764		897
765	sub cf::attachable::attached {	898	sub cf::attachable::attached {
766	my ($obj, $name) = @_;	899	my ($obj, $name) = @_;
767		900
…		…
782	";	915	";
783	die if $@;	916	die if $@;
784	}	917	}
785		918
786	our $override;	919	our $override;
787	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?
788		921
789	sub override {	922	sub override {
790	$override = 1;	923	$override = 1;
791	@invoke_results = ();	924	@INVOKE_RESULTS = (@_);
792	}	925	}
793		926
794	sub do_invoke {	927	sub do_invoke {
795	my $event = shift;	928	my $event = shift;
796	my $callbacks = shift;	929	my $callbacks = shift;
797		930
798	@invoke_results = ();	931	@INVOKE_RESULTS = ();
799		932
800	local $override;	933	local $override;
801		934
802	for (@$callbacks) {	935	for (@$callbacks) {
803	eval { &{$_->[1]} };	936	eval { &{$_->[1]} };
…		…
820		953
821	Generate an object-specific event with the given arguments.	954	Generate an object-specific event with the given arguments.
822		955
823	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
824	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
825	results (if you must, access C<@cf::invoke_results> directly).	958	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
826		959
827	=back	960	=back
828		961
829	=cut	962	=cut
830		963
831	#############################################################################	964	#############################################################################
832	# 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	}
833		977
834	sub reattach {	978	sub reattach {
835	# basically do the same as instantiate, without calling instantiate	979	# basically do the same as instantiate, without calling instantiate
836	my ($obj) = @_;	980	my ($obj) = @_;
		981
		982	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
837		983
838	my $registry = $obj->registry;	984	my $registry = $obj->registry;
839		985
840	@$registry = ();	986	@$registry = ();
841		987
…		…
880	);	1026	);
881		1027
882	sub object_freezer_save {	1028	sub object_freezer_save {
883	my ($filename, $rdata, $objs) = @_;	1029	my ($filename, $rdata, $objs) = @_;
884		1030
		1031	my $guard = cf::lock_acquire "io";
		1032
885	sync_job {	1033	sync_job {
886	if (length $$rdata) {	1034	if (length $$rdata) {
		1035	utf8::decode (my $decname = $filename);
887	warn sprintf "saving %s (%d,%d)\n",	1036	warn sprintf "saving %s (%d,%d)\n",
888	$filename, length $$rdata, scalar @$objs;	1037	$decname, length $$rdata, scalar @$objs;
889		1038
890	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1039	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
891	chmod SAVE_MODE, $fh;	1040	chmod SAVE_MODE, $fh;
892	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1041	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
893	aio_fsync $fh;	1042	aio_fsync $fh if $cf::USE_FSYNC;
894	close $fh;	1043	close $fh;
895		1044
896	if (@$objs) {	1045	if (@$objs) {
897	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) {
898	chmod SAVE_MODE, $fh;	1047	chmod SAVE_MODE, $fh;
899	my $data = Storable::nfreeze { version => 1, objs => $objs };	1048	my $data = Storable::nfreeze { version => 1, objs => $objs };
900	aio_write $fh, 0, (length $data), $data, 0;	1049	aio_write $fh, 0, (length $data), $data, 0;
901	aio_fsync $fh;	1050	aio_fsync $fh if $cf::USE_FSYNC;
902	close $fh;	1051	close $fh;
903	aio_rename "$filename.pst~", "$filename.pst";	1052	aio_rename "$filename.pst~", "$filename.pst";
904	}	1053	}
905	} else {	1054	} else {
906	aio_unlink "$filename.pst";	1055	aio_unlink "$filename.pst";
…		…
912	}	1061	}
913	} else {	1062	} else {
914	aio_unlink $filename;	1063	aio_unlink $filename;
915	aio_unlink "$filename.pst";	1064	aio_unlink "$filename.pst";
916	}	1065	}
917	}	1066	};
		1067
		1068	undef $guard;
918	}	1069	}
919		1070
920	sub object_freezer_as_string {	1071	sub object_freezer_as_string {
921	my ($rdata, $objs) = @_;	1072	my ($rdata, $objs) = @_;
922		1073
…		…
927		1078
928	sub object_thawer_load {	1079	sub object_thawer_load {
929	my ($filename) = @_;	1080	my ($filename) = @_;
930		1081
931	my ($data, $av);	1082	my ($data, $av);
		1083
		1084	my $guard = cf::lock_acquire "io";
932		1085
933	(aio_load $filename, $data) >= 0	1086	(aio_load $filename, $data) >= 0
934	or return;	1087	or return;
935		1088
936	unless (aio_stat "$filename.pst") {	1089	unless (aio_stat "$filename.pst") {
937	(aio_load "$filename.pst", $av) >= 0	1090	(aio_load "$filename.pst", $av) >= 0
938	or return;	1091	or return;
		1092
		1093	undef $guard;
939	$av = eval { (Storable::thaw $av)->{objs} };	1094	$av = eval { (Storable::thaw $av)->{objs} };
940	}	1095	}
941		1096
		1097	utf8::decode (my $decname = $filename);
942	warn sprintf "loading %s (%d)\n",	1098	warn sprintf "loading %s (%d,%d)\n",
943	$filename, length $data, scalar @{$av || []};#d#	1099	$decname, length $data, scalar @{$av || []};
		1100
944	return ($data, $av);	1101	($data, $av)
945	}	1102	}
		1103
		1104	=head2 COMMAND CALLBACKS
		1105
		1106	=over 4
		1107
		1108	=cut
946		1109
947	#############################################################################	1110	#############################################################################
948	# command handling &c	1111	# command handling &c
949		1112
950	=item cf::register_command $name => \&callback($ob,$args);	1113	=item cf::register_command $name => \&callback($ob,$args);
…		…
963	push @{ $COMMAND{$name} }, [$caller, $cb];	1126	push @{ $COMMAND{$name} }, [$caller, $cb];
964	}	1127	}
965		1128
966	=item cf::register_extcmd $name => \&callback($pl,$packet);	1129	=item cf::register_extcmd $name => \&callback($pl,$packet);
967		1130
968	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.
969		1136
970	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
971	called.	1138	called.
972		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
973	=cut	1151	=cut
974		1152
975	sub register_extcmd {	1153	sub register_extcmd {
976	my ($name, $cb) = @_;	1154	my ($name, $cb) = @_;
977		1155
978	$EXTCMD{$name} = $cb;	1156	$EXTCMD{$name} = $cb;
		1157	}
		1158
		1159	sub register_exticmd {
		1160	my ($name, $cb) = @_;
		1161
		1162	$EXTICMD{$name} = $cb;
979	}	1163	}
980		1164
981	cf::player->attach (	1165	cf::player->attach (
982	on_command => sub {	1166	on_command => sub {
983	my ($pl, $name, $params) = @_;	1167	my ($pl, $name, $params) = @_;
…		…
992	cf::override;	1176	cf::override;
993	},	1177	},
994	on_extcmd => sub {	1178	on_extcmd => sub {
995	my ($pl, $buf) = @_;	1179	my ($pl, $buf) = @_;
996		1180
997	my $msg = eval { from_json $buf };	1181	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
998		1182
999	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
1000	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1191	if (my $cb = $EXTCMD{$type}) {
1001	if (my %reply = $cb->($pl, $msg)) {	1192	@reply = $cb->($pl, @payload);
1002	$pl->ext_reply ($msg->{msgid}, %reply);
1003	}
1004	}	1193	}
		1194
		1195	$pl->ext_reply ($reply, @reply)
		1196	if $reply;
		1197
1005	} else {	1198	} else {
1006	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1199	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
1007	}	1200	}
1008		1201
1009	cf::override;	1202	cf::override;
1010	},	1203	},
1011	);	1204	);
1012		1205
1013	sub load_extension {
1014	my ($path) = @_;
1015
1016	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
1017	my $base = $1;
1018	my $pkg = $1;
1019	$pkg =~ s/[^[:word:]]/_/g;
1020	$pkg = "ext::$pkg";
1021
1022	warn "... loading '$path' into '$pkg'\n";
1023
1024	open my $fh, "<:utf8", $path
1025	or die "$path: $!";
1026
1027	my $source =
1028	"package $pkg; use strict; use utf8;\n"
1029	. "#line 1 \"$path\"\n{\n"
1030	. (do { local $/; <$fh> })
1031	. "\n};\n1";
1032
1033	eval $source
1034	or die $@ ? "$path: $@\n"
1035	: "extension disabled.\n";
1036
1037	push @EXTS, $pkg;
1038	}
1039
1040	sub load_extensions {	1206	sub load_extensions {
		1207	cf::sync_job {
		1208	my %todo;
		1209
1041	for my $ext (<$LIBDIR/*.ext>) {	1210	for my $path (<$LIBDIR/*.ext>) {
1042	next unless -r $ext;	1211	next unless -r $path;
1043	eval {	1212
1044	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;
1045	1	1270	}
1046	} or warn "$ext not loaded: $@";	1271
		1272	skip:
		1273	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1274	unless $progress;
		1275	}
1047	}	1276	};
1048	}	1277	}
1049		1278
1050	#############################################################################	1279	#############################################################################
1051	# load/save/clean perl data associated with a map
1052		1280
1053	*cf::mapsupport::on_clean = sub {	1281	=back
1054	my ($map) = @_;
1055
1056	my $path = $map->tmpname;
1057	defined $path or return;
1058
1059	unlink "$path.pst";
1060	};
1061
1062	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1063
1064	#############################################################################
1065		1282
1066	=head2 CORE EXTENSIONS	1283	=head2 CORE EXTENSIONS
1067		1284
1068	Functions and methods that extend core crossfire objects.	1285	Functions and methods that extend core crossfire objects.
1069		1286
…		…
1075		1292
1076	=head3 cf::player	1293	=head3 cf::player
1077		1294
1078	=over 4	1295	=over 4
1079		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
1080	=item cf::player::find $login	1311	=item cf::player::find $login
1081		1312
1082	Returns the given player object, loading it if necessary (might block).	1313	Returns the given player object, loading it if necessary (might block).
1083		1314
1084	=cut	1315	=cut
1085		1316
1086	sub playerdir($) {	1317	sub playerdir($) {
1087	cf::localdir	1318	"$PLAYERDIR/"
1088	. "/"
1089	. cf::playerdir
1090	. "/"
1091	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1319	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1092	}	1320	}
1093		1321
1094	sub path($) {	1322	sub path($) {
1095	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1323	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1096		1324
1097	(playerdir $login) . "/$login.pl"	1325	(playerdir $login) . "/playerdata"
1098	}	1326	}
1099		1327
1100	sub find_active($) {	1328	sub find_active($) {
1101	$cf::PLAYER{$_[0]}	1329	$cf::PLAYER{$_[0]}
1102	and $cf::PLAYER{$_[0]}->active	1330	and $cf::PLAYER{$_[0]}->active
…		…
1105		1333
1106	sub exists($) {	1334	sub exists($) {
1107	my ($login) = @_;	1335	my ($login) = @_;
1108		1336
1109	$cf::PLAYER{$login}	1337	$cf::PLAYER{$login}
1110	or cf::sync_job { !aio_stat $login }	1338	or cf::sync_job { !aio_stat path $login }
1111	}	1339	}
1112		1340
1113	sub find($) {	1341	sub find($) {
1114	return $cf::PLAYER{$_[0]} || do {	1342	return $cf::PLAYER{$_[0]} || do {
1115	my $login = $_[0];	1343	my $login = $_[0];
1116		1344
1117	my $guard = cf::lock_acquire "user_find:$login";	1345	my $guard = cf::lock_acquire "user_find:$login";
1118		1346
1119	$cf::PLAYER{$_[0]} || do {	1347	$cf::PLAYER{$_[0]} || do {
1120	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
1121	or return;	1356	or return;
		1357
		1358	$f->next;
		1359	my $pl = cf::player::load_pl $f
		1360	or return;
		1361	local $cf::PLAYER_LOADING{$login} = $pl;
		1362	$f->resolve_delayed_derefs;
1122	$cf::PLAYER{$login} = $pl	1363	$cf::PLAYER{$login} = $pl
1123	}	1364	}
1124	}	1365	}
1125	}	1366	}
1126		1367
…		…
1136		1377
1137	aio_mkdir playerdir $pl, 0770;	1378	aio_mkdir playerdir $pl, 0770;
1138	$pl->{last_save} = $cf::RUNTIME;	1379	$pl->{last_save} = $cf::RUNTIME;
1139		1380
1140	$pl->save_pl ($path);	1381	$pl->save_pl ($path);
1141	Coro::cede;	1382	cf::cede_to_tick;
1142	}	1383	}
1143		1384
1144	sub new($) {	1385	sub new($) {
1145	my ($login) = @_;	1386	my ($login) = @_;
1146		1387
…		…
1152	$cf::PLAYER{$login} = $self;	1393	$cf::PLAYER{$login} = $self;
1153		1394
1154	$self	1395	$self
1155	}	1396	}
1156		1397
		1398	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1399
		1400	=cut
		1401
		1402	sub send_msg {
		1403	my $ns = shift->ns
		1404	or return;
		1405	$ns->send_msg (@_);
		1406	}
		1407
1157	=item $pl->quit_character	1408	=item $pl->quit_character
1158		1409
1159	Nukes the player without looking back. If logged in, the connection will	1410	Nukes the player without looking back. If logged in, the connection will
1160	be destroyed. May block for a long time.	1411	be destroyed. May block for a long time.
1161		1412
1162	=cut	1413	=cut
1163		1414
1164	sub quit_character {	1415	sub quit_character {
1165	my ($pl) = @_;	1416	my ($pl) = @_;
		1417
		1418	my $name = $pl->ob->name;
1166		1419
1167	$pl->{deny_save} = 1;	1420	$pl->{deny_save} = 1;
1168	$pl->password ("*"); # this should lock out the player until we nuked the dir	1421	$pl->password ("*"); # this should lock out the player until we nuked the dir
1169		1422
1170	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1423	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1175	my $path = playerdir $pl;	1428	my $path = playerdir $pl;
1176	my $temp = "$path~$cf::RUNTIME~deleting~";	1429	my $temp = "$path~$cf::RUNTIME~deleting~";
1177	aio_rename $path, $temp;	1430	aio_rename $path, $temp;
1178	delete $cf::PLAYER{$pl->ob->name};	1431	delete $cf::PLAYER{$pl->ob->name};
1179	$pl->destroy;	1432	$pl->destroy;
		1433
		1434	my $prefix = qr<^~\Q$name\E/>;
		1435
		1436	# nuke player maps
		1437	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1438
1180	IO::AIO::aio_rmtree $temp;	1439	IO::AIO::aio_rmtree $temp;
		1440	}
		1441
		1442	=item $pl->kick
		1443
		1444	Kicks a player out of the game. This destroys the connection.
		1445
		1446	=cut
		1447
		1448	sub kick {
		1449	my ($pl, $kicker) = @_;
		1450
		1451	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1452	$pl->killer ("kicked");
		1453	$pl->ns->destroy;
1181	}	1454	}
1182		1455
1183	=item cf::player::list_logins	1456	=item cf::player::list_logins
1184		1457
1185	Returns am arrayref of all valid playernames in the system, can take a	1458	Returns am arrayref of all valid playernames in the system, can take a
1186	while and may block, so not sync_job-capable, ever.	1459	while and may block, so not sync_job-capable, ever.
1187		1460
1188	=cut	1461	=cut
1189		1462
1190	sub list_logins {	1463	sub list_logins {
1191	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1464	my $dirs = aio_readdir $PLAYERDIR
1192	or return [];	1465	or return [];
1193		1466
1194	my @logins;	1467	my @logins;
1195		1468
1196	for my $login (@$dirs) {	1469	for my $login (@$dirs) {
		1470	my $path = path $login;
		1471
		1472	# a .pst is a dead give-away for a valid player
		1473	unless (-e "$path.pst") {
1197	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1474	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1198	aio_read $fh, 0, 512, my $buf, 0 or next;	1475	aio_read $fh, 0, 512, my $buf, 0 or next;
1199	$buf !~ /^password -------------$/m or next; # official not-valid tag	1476	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1477	}
1200		1478
1201	utf8::decode $login;	1479	utf8::decode $login;
1202	push @logins, $login;	1480	push @logins, $login;
1203	}	1481	}
1204		1482
1205	\@logins	1483	\@logins
1206	}	1484	}
1207		1485
1208	=item $player->maps	1486	=item $player->maps
1209		1487
1210	Returns an arrayref of cf::path's of all maps that are private for this	1488	Returns an arrayref of map paths that are private for this
1211	player. May block.	1489	player. May block.
1212		1490
1213	=cut	1491	=cut
1214		1492
1215	sub maps($) {	1493	sub maps($) {
1216	my ($pl) = @_;	1494	my ($pl) = @_;
		1495
		1496	$pl = ref $pl ? $pl->ob->name : $pl;
1217		1497
1218	my $files = aio_readdir playerdir $pl	1498	my $files = aio_readdir playerdir $pl
1219	or return;	1499	or return;
1220		1500
1221	my @paths;	1501	my @paths;
…		…
1223	for (@$files) {	1503	for (@$files) {
1224	utf8::decode $_;	1504	utf8::decode $_;
1225	next if /\.(?:pl|pst)$/;	1505	next if /\.(?:pl|pst)$/;
1226	next unless /^$PATH_SEP/o;	1506	next unless /^$PATH_SEP/o;
1227		1507
1228	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1508	push @paths, cf::map::normalise "~$pl/$_";
1229	}	1509	}
1230		1510
1231	\@paths	1511	\@paths
1232	}	1512	}
1233		1513
		1514	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1515
		1516	Expand crossfire pod fragments into protocol xml.
		1517
		1518	=cut
		1519
		1520	sub expand_cfpod {
		1521	((my $self), (local $_)) = @_;
		1522
		1523	# escape & and <
		1524	s/&/&amp;/g;
		1525	s/(?<![BIUGHT])</&lt;/g;
		1526
		1527	# this is buggy, it needs to properly take care of nested <'s
		1528
		1529	1 while
		1530	# replace B<>, I<>, U<> etc.
		1531	s/B<([^\>]*)>/<b>$1<\/b>/
		1532	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1533	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1534	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1535	# replace G<male|female> tags
		1536	|| s{G<([^>|]*)\|([^>]*)>}{
		1537	$self->gender ? $2 : $1
		1538	}ge
		1539	# replace H<hint text>
		1540	|| s{H<([^\>]*)>}
		1541	{
		1542	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1543	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1544	"")
		1545	[$self->{hintmode}]
		1546	}ge;
		1547
		1548	# create single paragraphs (very hackish)
		1549	s/(?<=\S)\n(?=\w)/ /g;
		1550
		1551	# compress some whitespace
		1552	s/\s+\n/\n/g; # ws line-ends
		1553	s/\n\n+/\n/g; # double lines
		1554	s/^\n+//; # beginning lines
		1555	s/\n+$//; # ending lines
		1556
		1557	$_
		1558	}
		1559
		1560	sub hintmode {
		1561	$_[0]{hintmode} = $_[1] if @_ > 1;
		1562	$_[0]{hintmode}
		1563	}
		1564
1234	=item $player->ext_reply ($msgid, $msgtype, %msg)	1565	=item $player->ext_reply ($msgid, @msg)
1235		1566
1236	Sends an ext reply to the player.	1567	Sends an ext reply to the player.
1237		1568
1238	=cut	1569	=cut
1239		1570
1240	sub ext_reply($$$%) {	1571	sub ext_reply($$@) {
1241	my ($self, $id, %msg) = @_;	1572	my ($self, $id, @msg) = @_;
1242		1573
1243	$msg{msgid} = $id;	1574	$self->ns->ext_reply ($id, @msg)
1244
1245	$self->send ("ext " . cf::to_json \%msg);
1246	}	1575	}
1247		1576
1248	package cf;	1577	=item $player->ext_msg ($type, @msg)
		1578
		1579	Sends an ext event to the client.
		1580
		1581	=cut
		1582
		1583	sub ext_msg($$@) {
		1584	my ($self, $type, @msg) = @_;
		1585
		1586	$self->ns->ext_msg ($type, @msg);
		1587	}
		1588
		1589	=head3 cf::region
		1590
		1591	=over 4
		1592
		1593	=cut
		1594
		1595	package cf::region;
		1596
		1597	=item cf::region::find_by_path $path
		1598
		1599	Tries to decuce the likely region for a map knowing only its path.
		1600
		1601	=cut
		1602
		1603	sub find_by_path($) {
		1604	my ($path) = @_;
		1605
		1606	my ($match, $specificity);
		1607
		1608	for my $region (list) {
		1609	if ($region->{match} && $path =~ $region->{match}) {
		1610	($match, $specificity) = ($region, $region->specificity)
		1611	if $region->specificity > $specificity;
		1612	}
		1613	}
		1614
		1615	$match
		1616	}
1249		1617
1250	=back	1618	=back
1251
1252		1619
1253	=head3 cf::map	1620	=head3 cf::map
1254		1621
1255	=over 4	1622	=over 4
1256		1623
…		…
1259	package cf::map;	1626	package cf::map;
1260		1627
1261	use Fcntl;	1628	use Fcntl;
1262	use Coro::AIO;	1629	use Coro::AIO;
1263		1630
		1631	use overload
		1632	'""' => \&as_string,
		1633	fallback => 1;
		1634
1264	our $MAX_RESET = 3600;	1635	our $MAX_RESET = 3600;
1265	our $DEFAULT_RESET = 3000;	1636	our $DEFAULT_RESET = 3000;
1266		1637
1267	sub generate_random_map {	1638	sub generate_random_map {
1268	my ($path, $rmp) = @_;	1639	my ($self, $rmp) = @_;
1269
1270	# mit "rum" bekleckern, nicht	1640	# mit "rum" bekleckern, nicht
1271	cf::map::_create_random_map (	1641	$self->_create_random_map (
1272	$path,
1273	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1642	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1274	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1643	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1275	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1644	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1276	$rmp->{exit_on_final_map},	1645	$rmp->{exit_on_final_map},
1277	$rmp->{xsize}, $rmp->{ysize},	1646	$rmp->{xsize}, $rmp->{ysize},
…		…
1282	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1651	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1283	(cf::region::find $rmp->{region}), $rmp->{custom}	1652	(cf::region::find $rmp->{region}), $rmp->{custom}
1284	)	1653	)
1285	}	1654	}
1286		1655
		1656	=item cf::map->register ($regex, $prio)
		1657
		1658	Register a handler for the map path matching the given regex at the
		1659	givne priority (higher is better, built-in handlers have priority 0, the
		1660	default).
		1661
		1662	=cut
		1663
		1664	sub register {
		1665	my (undef, $regex, $prio) = @_;
		1666	my $pkg = caller;
		1667
		1668	no strict;
		1669	push @{"$pkg\::ISA"}, __PACKAGE__;
		1670
		1671	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1672	}
		1673
		1674	# also paths starting with '/'
		1675	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1676
		1677	sub thawer_merge {
		1678	my ($self, $merge) = @_;
		1679
		1680	# we have to keep some variables in memory intact
		1681	local $self->{path};
		1682	local $self->{load_path};
		1683
		1684	$self->SUPER::thawer_merge ($merge);
		1685	}
		1686
		1687	sub normalise {
		1688	my ($path, $base) = @_;
		1689
		1690	$path = "$path"; # make sure its a string
		1691
		1692	$path =~ s/\.map$//;
		1693
		1694	# map plan:
		1695	#
		1696	# /! non-realised random map exit (special hack!)
		1697	# {... are special paths that are not being touched
		1698	# ?xxx/... are special absolute paths
		1699	# ?random/... random maps
		1700	# /... normal maps
		1701	# ~user/... per-player map of a specific user
		1702
		1703	$path =~ s/$PATH_SEP/\//go;
		1704
		1705	# treat it as relative path if it starts with
		1706	# something that looks reasonable
		1707	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1708	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1709
		1710	$base =~ s{[^/]+/?$}{};
		1711	$path = "$base/$path";
		1712	}
		1713
		1714	for ($path) {
		1715	redo if s{//}{/};
		1716	redo if s{/\.?/}{/};
		1717	redo if s{/[^/]+/\.\./}{/};
		1718	}
		1719
		1720	$path
		1721	}
		1722
		1723	sub new_from_path {
		1724	my (undef, $path, $base) = @_;
		1725
		1726	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1727
		1728	$path = normalise $path, $base;
		1729
		1730	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1731	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1732	my $self = bless cf::map::new, $pkg;
		1733	$self->{path} = $path; $self->path ($path);
		1734	$self->init; # pass $1 etc.
		1735	return $self;
		1736	}
		1737	}
		1738
		1739	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1740	()
		1741	}
		1742
		1743	sub init {
		1744	my ($self) = @_;
		1745
		1746	$self
		1747	}
		1748
		1749	sub as_string {
		1750	my ($self) = @_;
		1751
		1752	"$self->{path}"
		1753	}
		1754
		1755	# the displayed name, this is a one way mapping
		1756	sub visible_name {
		1757	&as_string
		1758	}
		1759
		1760	# the original (read-only) location
		1761	sub load_path {
		1762	my ($self) = @_;
		1763
		1764	"$MAPDIR/$self->{path}.map"
		1765	}
		1766
		1767	# the temporary/swap location
		1768	sub save_path {
		1769	my ($self) = @_;
		1770
		1771	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1772	"$TMPDIR/$path.map"
		1773	}
		1774
		1775	# the unique path, undef == no special unique path
		1776	sub uniq_path {
		1777	my ($self) = @_;
		1778
		1779	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1780	"$UNIQUEDIR/$path"
		1781	}
		1782
1287	# and all this just because we cannot iterate over	1783	# and all this just because we cannot iterate over
1288	# all maps in C++...	1784	# all maps in C++...
1289	sub change_all_map_light {	1785	sub change_all_map_light {
1290	my ($change) = @_;	1786	my ($change) = @_;
1291		1787
1292	$_->change_map_light ($change)	1788	$_->change_map_light ($change)
1293	for grep $_->outdoor, values %cf::MAP;	1789	for grep $_->outdoor, values %cf::MAP;
1294	}	1790	}
1295		1791
		1792	sub decay_objects {
		1793	my ($self) = @_;
		1794
		1795	return if $self->{deny_reset};
		1796
		1797	$self->do_decay_objects;
		1798	}
		1799
		1800	sub unlink_save {
		1801	my ($self) = @_;
		1802
		1803	utf8::encode (my $save = $self->save_path);
		1804	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1805	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1806	}
		1807
1296	sub load_map_header($) {	1808	sub load_header_from($) {
1297	my ($path) = @_;	1809	my ($self, $path) = @_;
1298		1810
1299	utf8::encode $path;	1811	utf8::encode $path;
1300	aio_open $path, O_RDONLY, 0	1812	my $f = new_from_file cf::object::thawer $path
1301	or return;	1813	or return;
1302		1814
1303	my $map = cf::map::new	1815	$self->_load_header ($f)
1304	or return;	1816	or return;
1305		1817
1306	# for better error messages only, will be overwritten later	1818	local $MAP_LOADING{$self->{path}} = $self;
1307	$map->path ($path);	1819	$f->resolve_delayed_derefs;
1308		1820
1309	$map->load_header ($path)	1821	$self->{load_path} = $path;
		1822
		1823	1
		1824	}
		1825
		1826	sub load_header_orig {
		1827	my ($self) = @_;
		1828
		1829	$self->load_header_from ($self->load_path)
		1830	}
		1831
		1832	sub load_header_temp {
		1833	my ($self) = @_;
		1834
		1835	$self->load_header_from ($self->save_path)
		1836	}
		1837
		1838	sub prepare_temp {
		1839	my ($self) = @_;
		1840
		1841	$self->last_access ((delete $self->{last_access})
		1842	|| $cf::RUNTIME); #d#
		1843	# safety
		1844	$self->{instantiate_time} = $cf::RUNTIME
		1845	if $self->{instantiate_time} > $cf::RUNTIME;
		1846	}
		1847
		1848	sub prepare_orig {
		1849	my ($self) = @_;
		1850
		1851	$self->{load_original} = 1;
		1852	$self->{instantiate_time} = $cf::RUNTIME;
		1853	$self->last_access ($cf::RUNTIME);
		1854	$self->instantiate;
		1855	}
		1856
		1857	sub load_header {
		1858	my ($self) = @_;
		1859
		1860	if ($self->load_header_temp) {
		1861	$self->prepare_temp;
		1862	} else {
		1863	$self->load_header_orig
1310	or return;	1864	or return;
		1865	$self->prepare_orig;
		1866	}
1311		1867
1312	$map->{load_path} = $path;	1868	$self->{deny_reset} = 1
		1869	if $self->no_reset;
1313		1870
1314	$map	1871	$self->default_region (cf::region::find_by_path $self->{path})
		1872	unless $self->default_region;
		1873
		1874	1
1315	}	1875	}
1316		1876
1317	sub find;	1877	sub find;
1318	sub find {	1878	sub find {
1319	my ($path, $origin) = @_;	1879	my ($path, $origin) = @_;
1320		1880
1321	#warn "find<$path,$origin>\n";#d#
1322
1323	$path = new cf::path $path, $origin && $origin->path;	1881	$path = normalise $path, $origin && $origin->path;
1324	my $key = $path->as_string;
1325		1882
		1883	cf::lock_wait "map_data:$path";#d#remove
1326	cf::lock_wait "map_find:$key";	1884	cf::lock_wait "map_find:$path";
1327		1885
1328	$cf::MAP{$key} || do {	1886	$cf::MAP{$path} || do {
1329	my $guard = cf::lock_acquire "map_find:$key";	1887	my $guard1 = cf::lock_acquire "map_find:$path";
		1888	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1330		1889
1331	# do it the slow way	1890	my $map = new_from_path cf::map $path
1332	my $map = $path->load_temp;
1333
1334	Coro::cede;
1335
1336	if ($map) {
1337	$map->last_access ((delete $map->{last_access})
1338	|| $cf::RUNTIME); #d#
1339	# safety
1340	$map->{instantiate_time} = $cf::RUNTIME
1341	if $map->{instantiate_time} > $cf::RUNTIME;
1342	} else {
1343	$map = $path->load_orig
1344	or return;	1891	or return;
1345		1892
1346	$map->{load_original} = 1;
1347	$map->{instantiate_time} = $cf::RUNTIME;
1348	$map->last_access ($cf::RUNTIME);
1349	$map->instantiate;
1350
1351	# per-player maps become, after loading, normal maps
1352	$map->per_player (0) if $path->{user_rel};
1353	}
1354
1355	$map->path ($key);
1356	$map->{path} = $path;
1357	$map->{last_save} = $cf::RUNTIME;	1893	$map->{last_save} = $cf::RUNTIME;
1358		1894
1359	Coro::cede;	1895	$map->load_header
		1896	or return;
1360		1897
1361	if ($map->should_reset) {	1898	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1899	# doing this can freeze the server in a sync job, obviously
		1900	#$cf::WAIT_FOR_TICK->wait;
		1901	undef $guard1;
		1902	undef $guard2;
1362	$map->reset;	1903	$map->reset;
1363	undef $guard;
1364	$map = find $path	1904	return find $path;
1365	or return;
1366	}	1905	}
1367		1906
1368	$cf::MAP{$key} = $map	1907	$cf::MAP{$path} = $map
1369	}	1908	}
1370	}	1909	}
		1910
		1911	sub pre_load { }
		1912	sub post_load { }
1371		1913
1372	sub load {	1914	sub load {
1373	my ($self) = @_;	1915	my ($self) = @_;
1374		1916
		1917	local $self->{deny_reset} = 1; # loading can take a long time
		1918
1375	my $path = $self->{path};	1919	my $path = $self->{path};
		1920
		1921	{
1376	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1922	my $guard = cf::lock_acquire "map_data:$path";
1377		1923
		1924	return unless $self->valid;
1378	return if $self->in_memory != cf::MAP_SWAPPED;	1925	return unless $self->in_memory == cf::MAP_SWAPPED;
1379		1926
1380	$self->in_memory (cf::MAP_LOADING);	1927	$self->in_memory (cf::MAP_LOADING);
1381		1928
1382	$self->alloc;	1929	$self->alloc;
1383	$self->load_objects ($self->{load_path}, 1)	1930
		1931	$self->pre_load;
		1932	cf::cede_to_tick;
		1933
		1934	my $f = new_from_file cf::object::thawer $self->{load_path};
		1935	$f->skip_block;
		1936	$self->_load_objects ($f)
1384	or return;	1937	or return;
1385		1938
1386	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1939	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1387	if delete $self->{load_original};	1940	if delete $self->{load_original};
1388		1941
1389	if (my $uniq = $path->uniq_path) {	1942	if (my $uniq = $self->uniq_path) {
1390	utf8::encode $uniq;	1943	utf8::encode $uniq;
1391	if (aio_open $uniq, O_RDONLY, 0) {	1944	unless (aio_stat $uniq) {
		1945	if (my $f = new_from_file cf::object::thawer $uniq) {
1392	$self->clear_unique_items;	1946	$self->clear_unique_items;
1393	$self->load_objects ($uniq, 0);	1947	$self->_load_objects ($f);
		1948	$f->resolve_delayed_derefs;
		1949	}
1394	}	1950	}
1395	}	1951	}
1396		1952
1397	Coro::cede;	1953	$f->resolve_delayed_derefs;
1398		1954
		1955	cf::cede_to_tick;
1399	# now do the right thing for maps	1956	# now do the right thing for maps
1400	$self->link_multipart_objects;	1957	$self->link_multipart_objects;
1401
1402	if ($self->{path}->is_style_map) {
1403	$self->{deny_save} = 1;
1404	$self->{deny_reset} = 1;
1405	} else {
1406	$self->fix_auto_apply;
1407	$self->decay_objects;
1408	$self->update_buttons;
1409	$self->set_darkness_map;
1410	$self->difficulty ($self->estimate_difficulty)	1958	$self->difficulty ($self->estimate_difficulty)
1411	unless $self->difficulty;	1959	unless $self->difficulty;
		1960	cf::cede_to_tick;
		1961
		1962	unless ($self->{deny_activate}) {
		1963	$self->decay_objects;
		1964	$self->fix_auto_apply;
		1965	$self->update_buttons;
		1966	cf::cede_to_tick;
		1967	$self->set_darkness_map;
		1968	cf::cede_to_tick;
1412	$self->activate;	1969	$self->activate;
1413	}	1970	}
1414		1971
1415	Coro::cede;	1972	$self->{last_save} = $cf::RUNTIME;
		1973	$self->last_access ($cf::RUNTIME);
1416		1974
1417	$self->in_memory (cf::MAP_IN_MEMORY);	1975	$self->in_memory (cf::MAP_IN_MEMORY);
		1976	}
		1977
		1978	$self->post_load;
		1979	}
		1980
		1981	sub customise_for {
		1982	my ($self, $ob) = @_;
		1983
		1984	return find "~" . $ob->name . "/" . $self->{path}
		1985	if $self->per_player;
		1986
		1987	# return find "?party/" . $ob->name . "/" . $self->{path}
		1988	# if $self->per_party;
		1989
		1990	$self
1418	}	1991	}
1419		1992
1420	# find and load all maps in the 3x3 area around a map	1993	# find and load all maps in the 3x3 area around a map
1421	sub load_diag {	1994	sub load_neighbours {
1422	my ($map) = @_;	1995	my ($map) = @_;
1423		1996
1424	my @diag; # diagonal neighbours	1997	my @neigh; # diagonal neighbours
1425		1998
1426	for (0 .. 3) {	1999	for (0 .. 3) {
1427	my $neigh = $map->tile_path ($_)	2000	my $neigh = $map->tile_path ($_)
1428	or next;	2001	or next;
1429	$neigh = find $neigh, $map	2002	$neigh = find $neigh, $map
1430	or next;	2003	or next;
1431	$neigh->load;	2004	$neigh->load;
1432		2005
		2006	push @neigh,
1433	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2007	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1434	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2008	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1435	}	2009	}
1436		2010
1437	for (@diag) {	2011	for (grep defined $_->[0], @neigh) {
		2012	my ($path, $origin) = @$_;
1438	my $neigh = find @$_	2013	my $neigh = find $path, $origin
1439	or next;	2014	or next;
1440	$neigh->load;	2015	$neigh->load;
1441	}	2016	}
1442	}	2017	}
1443		2018
…		…
1448	}	2023	}
1449		2024
1450	sub do_load_sync {	2025	sub do_load_sync {
1451	my ($map) = @_;	2026	my ($map) = @_;
1452		2027
		2028	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2029	if $Coro::current == $Coro::main;
		2030
1453	cf::sync_job { $map->load };	2031	cf::sync_job { $map->load };
1454	}	2032	}
1455		2033
1456	our %MAP_PREFETCH;	2034	our %MAP_PREFETCH;
		2035	our $MAP_PREFETCHER = undef;
		2036
		2037	sub find_async {
		2038	my ($path, $origin, $load) = @_;
		2039
		2040	$path = normalise $path, $origin && $origin->{path};
		2041
		2042	if (my $map = $cf::MAP{$path}) {
		2043	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2044	}
		2045
		2046	$MAP_PREFETCH{$path} |= $load;
		2047
1457	our $MAP_PREFETCHER = Coro::async {	2048	$MAP_PREFETCHER ||= cf::async {
1458	while () {
1459	while (%MAP_PREFETCH) {	2049	while (%MAP_PREFETCH) {
1460	my $key = each %MAP_PREFETCH	2050	while (my ($k, $v) = each %MAP_PREFETCH) {
1461	or next;	2051	if (my $map = find $k) {
		2052	$map->load if $v;
		2053	}
		2054
1462	my $path = delete $MAP_PREFETCH{$key};	2055	delete $MAP_PREFETCH{$k};
1463
1464	my $map = find $path
1465	or next;
1466	$map->load;
1467	}	2056	}
1468	Coro::schedule;	2057	}
		2058	undef $MAP_PREFETCHER;
1469	}	2059	};
1470	};
1471
1472	sub find_async {
1473	my ($path, $origin) = @_;
1474
1475	$path = new cf::path $path, $origin && $origin->path;
1476	my $key = $path->as_string;
1477
1478	if (my $map = $cf::MAP{$key}) {
1479	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1480	}
1481
1482	$MAP_PREFETCH{$key} = $path;
1483	$MAP_PREFETCHER->ready;	2060	$MAP_PREFETCHER->prio (6);
1484		2061
1485	()	2062	()
1486	}	2063	}
1487		2064
1488	sub save {	2065	sub save {
1489	my ($self) = @_;	2066	my ($self) = @_;
1490		2067
1491	my $lock = cf::lock_acquire "map_data:" . $self->path;	2068	my $lock = cf::lock_acquire "map_data:$self->{path}";
1492		2069
1493	$self->{last_save} = $cf::RUNTIME;	2070	$self->{last_save} = $cf::RUNTIME;
1494		2071
1495	return unless $self->dirty;	2072	return unless $self->dirty;
1496		2073
1497	my $save = $self->{path}->save_path; utf8::encode $save;	2074	my $save = $self->save_path; utf8::encode $save;
1498	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2075	my $uniq = $self->uniq_path; utf8::encode $uniq;
1499		2076
1500	$self->{load_path} = $save;	2077	$self->{load_path} = $save;
1501		2078
1502	return if $self->{deny_save};	2079	return if $self->{deny_save};
1503		2080
…		…
1506	cf::async {	2083	cf::async {
1507	$_->contr->save for $self->players;	2084	$_->contr->save for $self->players;
1508	};	2085	};
1509		2086
1510	if ($uniq) {	2087	if ($uniq) {
1511	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2088	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1512	$self->save_objects ($uniq, cf::IO_UNIQUES);	2089	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1513	} else {	2090	} else {
1514	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2091	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1515	}	2092	}
1516	}	2093	}
1517		2094
1518	sub swap_out {	2095	sub swap_out {
1519	my ($self) = @_;	2096	my ($self) = @_;
1520		2097
1521	# save first because save cedes	2098	# save first because save cedes
1522	$self->save;	2099	$self->save;
1523		2100
1524	my $lock = cf::lock_acquire "map_data:" . $self->path;	2101	my $lock = cf::lock_acquire "map_data:$self->{path}";
1525		2102
1526	return if $self->players;	2103	return if $self->players;
1527	return if $self->in_memory != cf::MAP_IN_MEMORY;	2104	return if $self->in_memory != cf::MAP_IN_MEMORY;
1528	return if $self->{deny_save};	2105	return if $self->{deny_save};
1529		2106
		2107	$self->in_memory (cf::MAP_SWAPPED);
		2108
		2109	$self->deactivate;
		2110	$_->clear_links_to ($self) for values %cf::MAP;
1530	$self->clear;	2111	$self->clear;
1531	$self->in_memory (cf::MAP_SWAPPED);
1532	}	2112	}
1533		2113
1534	sub reset_at {	2114	sub reset_at {
1535	my ($self) = @_;	2115	my ($self) = @_;
1536		2116
1537	# TODO: safety, remove and allow resettable per-player maps	2117	# TODO: safety, remove and allow resettable per-player maps
1538	return 1e99 if $self->{path}{user_rel};
1539	return 1e99 if $self->{deny_reset};	2118	return 1e99 if $self->{deny_reset};
1540		2119
1541	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2120	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1542	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2121	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1543		2122
…		…
1548	my ($self) = @_;	2127	my ($self) = @_;
1549		2128
1550	$self->reset_at <= $cf::RUNTIME	2129	$self->reset_at <= $cf::RUNTIME
1551	}	2130	}
1552		2131
1553	sub unlink_save {
1554	my ($self) = @_;
1555
1556	utf8::encode (my $save = $self->{path}->save_path);
1557	aioreq_pri 3; IO::AIO::aio_unlink $save;
1558	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1559	}
1560
1561	sub rename {
1562	my ($self, $new_path) = @_;
1563
1564	$self->unlink_save;
1565
1566	delete $cf::MAP{$self->path};
1567	$self->{path} = new cf::path $new_path;
1568	$self->path ($self->{path}->as_string);
1569	$cf::MAP{$self->path} = $self;
1570
1571	$self->save;
1572	}
1573
1574	sub reset {	2132	sub reset {
1575	my ($self) = @_;	2133	my ($self) = @_;
1576		2134
1577	my $lock = cf::lock_acquire "map_data:" . $self->path;	2135	my $lock = cf::lock_acquire "map_data:$self->{path}";
1578		2136
1579	return if $self->players;	2137	return if $self->players;
1580	return if $self->{path}{user_rel};#d#
1581		2138
1582	warn "resetting map ", $self->path;#d#	2139	warn "resetting map ", $self->path;
		2140
		2141	$self->in_memory (cf::MAP_SWAPPED);
		2142
		2143	# need to save uniques path
		2144	unless ($self->{deny_save}) {
		2145	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2146
		2147	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2148	if $uniq;
		2149	}
1583		2150
1584	delete $cf::MAP{$self->path};	2151	delete $cf::MAP{$self->path};
1585		2152
		2153	$self->deactivate;
1586	$_->clear_links_to ($self) for values %cf::MAP;	2154	$_->clear_links_to ($self) for values %cf::MAP;
		2155	$self->clear;
1587		2156
1588	$self->unlink_save;	2157	$self->unlink_save;
1589	$self->destroy;	2158	$self->destroy;
1590	}	2159	}
1591		2160
1592	my $nuke_counter = "aaaa";	2161	my $nuke_counter = "aaaa";
1593		2162
1594	sub nuke {	2163	sub nuke {
1595	my ($self) = @_;	2164	my ($self) = @_;
1596		2165
		2166	{
		2167	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2168
		2169	delete $cf::MAP{$self->path};
		2170
		2171	$self->unlink_save;
		2172
		2173	bless $self, "cf::map";
		2174	delete $self->{deny_reset};
1597	$self->{deny_save} = 1;	2175	$self->{deny_save} = 1;
1598	$self->reset_timeout (1);	2176	$self->reset_timeout (1);
1599	$self->rename ("{nuke}/" . ($nuke_counter++));	2177	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2178
		2179	$cf::MAP{$self->path} = $self;
		2180	}
		2181
1600	$self->reset; # polite request, might not happen	2182	$self->reset; # polite request, might not happen
1601	}	2183	}
1602		2184
1603	sub customise_for {	2185	=item $maps = cf::map::tmp_maps
1604	my ($map, $ob) = @_;
1605		2186
1606	if ($map->per_player) {	2187	Returns an arrayref with all map paths of currently instantiated and saved
1607	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2188	maps. May block.
		2189
		2190	=cut
		2191
		2192	sub tmp_maps() {
1608	}	2193	[
		2194	map {
		2195	utf8::decode $_;
		2196	/\.map$/
		2197	? normalise $_
		2198	: ()
		2199	} @{ aio_readdir $TMPDIR or [] }
		2200	]
		2201	}
1609		2202
1610	$map	2203	=item $maps = cf::map::random_maps
		2204
		2205	Returns an arrayref with all map paths of currently instantiated and saved
		2206	random maps. May block.
		2207
		2208	=cut
		2209
		2210	sub random_maps() {
		2211	[
		2212	map {
		2213	utf8::decode $_;
		2214	/\.map$/
		2215	? normalise "?random/$_"
		2216	: ()
		2217	} @{ aio_readdir $RANDOMDIR or [] }
		2218	]
1611	}	2219	}
1612		2220
1613	=item cf::map::unique_maps	2221	=item cf::map::unique_maps
1614		2222
1615	Returns an arrayref of cf::path's of all shared maps that have	2223	Returns an arrayref of paths of all shared maps that have
1616	instantiated unique items. May block.	2224	instantiated unique items. May block.
1617		2225
1618	=cut	2226	=cut
1619		2227
1620	sub unique_maps() {	2228	sub unique_maps() {
1621	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2229	[
1622	or return;	2230	map {
1623
1624	my @paths;
1625
1626	for (@$files) {
1627	utf8::decode $_;	2231	utf8::decode $_;
1628	next if /\.pst$/;	2232	/\.map$/
1629	next unless /^$PATH_SEP/o;	2233	? normalise $_
1630		2234	: ()
1631	push @paths, new cf::path $_;	2235	} @{ aio_readdir $UNIQUEDIR or [] }
1632	}	2236	]
1633
1634	\@paths
1635	}	2237	}
1636		2238
1637	package cf;	2239	package cf;
1638		2240
1639	=back	2241	=back
…		…
1657	map { $_, inv_recursive_ $_->inv } @_	2259	map { $_, inv_recursive_ $_->inv } @_
1658	}	2260	}
1659		2261
1660	sub inv_recursive {	2262	sub inv_recursive {
1661	inv_recursive_ inv $_[0]	2263	inv_recursive_ inv $_[0]
		2264	}
		2265
		2266	=item $ref = $ob->ref
		2267
		2268	creates and returns a persistent reference to an objetc that can be stored as a string.
		2269
		2270	=item $ob = cf::object::deref ($refstring)
		2271
		2272	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2273	even if the object actually exists. May block.
		2274
		2275	=cut
		2276
		2277	sub deref {
		2278	my ($ref) = @_;
		2279
		2280	# temporary compatibility#TODO#remove
		2281	$ref =~ s{^<}{player/<};
		2282
		2283	if ($ref =~ m{^player\/(<1\.\d+>)/(.*)$}) {
		2284	my ($uuid, $name) = ($1, $2);
		2285	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2286	or return;
		2287	$pl->ob->uuid eq $uuid
		2288	or return;
		2289
		2290	$pl->ob
		2291	} else {
		2292	warn "$ref: cannot resolve object reference\n";
		2293	undef
		2294	}
1662	}	2295	}
1663		2296
1664	package cf;	2297	package cf;
1665		2298
1666	=back	2299	=back
…		…
1685		2318
1686	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2319	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1687		2320
1688	if ($self->{record_replies}) {	2321	if ($self->{record_replies}) {
1689	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2322	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2323
1690	} else {	2324	} else {
		2325	my $pl = $self->contr;
		2326
		2327	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2328	my $dialog = $pl->{npc_dialog};
		2329	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2330
		2331	} else {
1691	$msg = $npc->name . " says: $msg" if $npc;	2332	$msg = $npc->name . " says: $msg" if $npc;
1692	$self->message ($msg, $flags);	2333	$self->message ($msg, $flags);
		2334	}
1693	}	2335	}
		2336	}
		2337
		2338	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2339
		2340	=cut
		2341
		2342	sub cf::object::send_msg {
		2343	my $pl = shift->contr
		2344	or return;
		2345	$pl->send_msg (@_);
1694	}	2346	}
1695		2347
1696	=item $player_object->may ("access")	2348	=item $player_object->may ("access")
1697		2349
1698	Returns wether the given player is authorized to access resource "access"	2350	Returns wether the given player is authorized to access resource "access"
…		…
1711		2363
1712	=item $player_object->enter_link	2364	=item $player_object->enter_link
1713		2365
1714	Freezes the player and moves him/her to a special map (C<{link}>).	2366	Freezes the player and moves him/her to a special map (C<{link}>).
1715		2367
1716	The player should be reaosnably safe there for short amounts of time. You	2368	The player should be reasonably safe there for short amounts of time. You
1717	I<MUST> call C<leave_link> as soon as possible, though.	2369	I<MUST> call C<leave_link> as soon as possible, though.
1718		2370
		2371	Will never block.
		2372
1719	=item $player_object->leave_link ($map, $x, $y)	2373	=item $player_object->leave_link ($map, $x, $y)
1720		2374
1721	Moves the player out of the specila link map onto the given map. If the	2375	Moves the player out of the special C<{link}> map onto the specified
1722	map is not valid (or omitted), the player will be moved back to the	2376	map. If the map is not valid (or omitted), the player will be moved back
1723	location he/she was before the call to C<enter_link>, or, if that fails,	2377	to the location he/she was before the call to C<enter_link>, or, if that
1724	to the emergency map position.	2378	fails, to the emergency map position.
1725		2379
1726	Might block.	2380	Might block.
1727		2381
1728	=cut	2382	=cut
		2383
		2384	sub link_map {
		2385	unless ($LINK_MAP) {
		2386	$LINK_MAP = cf::map::find "{link}"
		2387	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2388	$LINK_MAP->load;
		2389	}
		2390
		2391	$LINK_MAP
		2392	}
1729		2393
1730	sub cf::object::player::enter_link {	2394	sub cf::object::player::enter_link {
1731	my ($self) = @_;	2395	my ($self) = @_;
1732		2396
1733	$self->deactivate_recursive;	2397	$self->deactivate_recursive;
1734		2398
1735	return if $self->map == $LINK_MAP;	2399	return if UNIVERSAL::isa $self->map, "ext::map_link";
1736		2400
1737	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2401	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1738	if $self->map;	2402	if $self->map && $self->map->{path} ne "{link}";
1739		2403
1740	$self->enter_map ($LINK_MAP, 20, 20);	2404	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1741	}	2405	}
1742		2406
1743	sub cf::object::player::leave_link {	2407	sub cf::object::player::leave_link {
1744	my ($self, $map, $x, $y) = @_;	2408	my ($self, $map, $x, $y) = @_;
		2409
		2410	return unless $self->contr->active;
1745		2411
1746	my $link_pos = delete $self->{_link_pos};	2412	my $link_pos = delete $self->{_link_pos};
1747		2413
1748	unless ($map) {	2414	unless ($map) {
1749	# restore original map position	2415	# restore original map position
…		…
1763	# use -1 or undef as default coordinates, not 0, 0	2429	# use -1 or undef as default coordinates, not 0, 0
1764	($x, $y) = ($map->enter_x, $map->enter_y)	2430	($x, $y) = ($map->enter_x, $map->enter_y)
1765	if $x <=0 && $y <= 0;	2431	if $x <=0 && $y <= 0;
1766		2432
1767	$map->load;	2433	$map->load;
1768	$map->load_diag;	2434	$map->load_neighbours;
1769		2435
1770	return unless $self->contr->active;	2436	return unless $self->contr->active;
1771	$self->activate_recursive;	2437	$self->activate_recursive;
		2438
		2439	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1772	$self->enter_map ($map, $x, $y);	2440	$self->enter_map ($map, $x, $y);
1773	}	2441	}
1774		2442
1775	cf::player->attach (	2443	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1776	on_logout => sub {
1777	my ($pl) = @_;
1778		2444
1779	# abort map switching before logout	2445	Moves the player to the given map-path and coordinates by first freezing
1780	if ($pl->ob->{_link_pos}) {	2446	her, loading and preparing them map, calling the provided $check callback
1781	cf::sync_job {	2447	that has to return the map if sucecssful, and then unfreezes the player on
1782	$pl->ob->leave_link	2448	the new (success) or old (failed) map position. In either case, $done will
1783	};	2449	be called at the end of this process.
1784	}
1785	},
1786	on_login => sub {
1787	my ($pl) = @_;
1788		2450
1789	# try to abort aborted map switching on player login :)
1790	# should happen only on crashes
1791	if ($pl->ob->{_link_pos}) {
1792	$pl->ob->enter_link;
1793	(async {
1794	# we need this sleep as the login has a concurrent enter_exit running
1795	# and this sleep increases chances of the player not ending up in scorn
1796	$pl->ob->reply (undef,
1797	"There was an internal problem at your last logout, "
1798	. "the server will try to bring you to your intended destination in a second.",
1799	cf::NDI_RED);
1800	Coro::Timer::sleep 1;
1801	$pl->ob->leave_link;
1802	})->prio (2);
1803	}
1804	},
1805	);
1806
1807	=item $player_object->goto ($path, $x, $y)
1808
1809	=cut	2451	=cut
		2452
		2453	our $GOTOGEN;
1810		2454
1811	sub cf::object::player::goto {	2455	sub cf::object::player::goto {
1812	my ($self, $path, $x, $y) = @_;	2456	my ($self, $path, $x, $y, $check, $done) = @_;
1813		2457
1814	$path = new cf::path $path;	2458	# do generation counting so two concurrent goto's will be executed in-order
		2459	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1815		2460
1816	$self->enter_link;	2461	$self->enter_link;
1817		2462
1818	(async {	2463	(async {
1819	my $map = cf::map::find $path->as_string;	2464	# *tag paths override both path and x|y
		2465	if ($path =~ /^\*(.*)$/) {
		2466	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2467	my $ob = $obs[rand @obs];
		2468
		2469	# see if we actually can go there
		2470	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2471	$ob = $obs[rand @obs];
		2472	} else {
		2473	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2474	}
		2475	# else put us there anyways for now #d#
		2476
		2477	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2478	} else {
		2479	($path, $x, $y) = (undef, undef, undef);
		2480	}
		2481	}
		2482
		2483	my $map = eval {
		2484	my $map = defined $path ? cf::map::find $path : undef;
		2485
		2486	if ($map) {
1820	$map = $map->customise_for ($self) if $map;	2487	$map = $map->customise_for ($self);
1821		2488	$map = $check->($map) if $check && $map;
1822	# warn "entering ", $map->path, " at ($x, $y)\n"	2489	} else {
1823	# if $map;
1824
1825	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2490	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2491	}
1826		2492
		2493	$map
		2494	};
		2495
		2496	if ($@) {
		2497	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2498	LOG llevError | logBacktrace, Carp::longmess $@;
		2499	}
		2500
		2501	if ($gen == $self->{_goto_generation}) {
		2502	delete $self->{_goto_generation};
1827	$self->leave_link ($map, $x, $y);	2503	$self->leave_link ($map, $x, $y);
		2504	}
		2505
		2506	$done->() if $done;
1828	})->prio (1);	2507	})->prio (1);
1829	}	2508	}
1830		2509
1831	=item $player_object->enter_exit ($exit_object)	2510	=item $player_object->enter_exit ($exit_object)
1832		2511
…		…
1834		2513
1835	sub parse_random_map_params {	2514	sub parse_random_map_params {
1836	my ($spec) = @_;	2515	my ($spec) = @_;
1837		2516
1838	my $rmp = { # defaults	2517	my $rmp = { # defaults
1839	xsize => 10,	2518	xsize => (cf::rndm 15, 40),
1840	ysize => 10,	2519	ysize => (cf::rndm 15, 40),
		2520	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2521	#layout => string,
1841	};	2522	};
1842		2523
1843	for (split /\n/, $spec) {	2524	for (split /\n/, $spec) {
1844	my ($k, $v) = split /\s+/, $_, 2;	2525	my ($k, $v) = split /\s+/, $_, 2;
1845		2526
…		…
1849	$rmp	2530	$rmp
1850	}	2531	}
1851		2532
1852	sub prepare_random_map {	2533	sub prepare_random_map {
1853	my ($exit) = @_;	2534	my ($exit) = @_;
		2535
		2536	my $guard = cf::lock_acquire "exit_prepare:$exit";
1854		2537
1855	# all this does is basically replace the /! path by	2538	# all this does is basically replace the /! path by
1856	# a new random map path (?random/...) with a seed	2539	# a new random map path (?random/...) with a seed
1857	# that depends on the exit object	2540	# that depends on the exit object
1858		2541
1859	my $rmp = parse_random_map_params $exit->msg;	2542	my $rmp = parse_random_map_params $exit->msg;
1860		2543
1861	if ($exit->map) {	2544	if ($exit->map) {
1862	$rmp->{region} = $exit->map->region_name;	2545	$rmp->{region} = $exit->region->name;
1863	$rmp->{origin_map} = $exit->map->path;	2546	$rmp->{origin_map} = $exit->map->path;
1864	$rmp->{origin_x} = $exit->x;	2547	$rmp->{origin_x} = $exit->x;
1865	$rmp->{origin_y} = $exit->y;	2548	$rmp->{origin_y} = $exit->y;
1866	}	2549	}
1867		2550
1868	$rmp->{random_seed} ||= $exit->random_seed;	2551	$rmp->{random_seed} ||= $exit->random_seed;
1869		2552
1870	my $data = cf::to_json $rmp;	2553	my $data = cf::to_json $rmp;
1871	my $md5 = Digest::MD5::md5_hex $data;	2554	my $md5 = Digest::MD5::md5_hex $data;
		2555	my $meta = "$RANDOMDIR/$md5.meta";
1872		2556
1873	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2557	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1874	aio_write $fh, 0, (length $data), $data, 0;	2558	aio_write $fh, 0, (length $data), $data, 0;
		2559	undef $fh;
		2560	aio_rename "$meta~", $meta;
1875		2561
1876	$exit->slaying ("?random/$md5");	2562	$exit->slaying ("?random/$md5");
1877	$exit->msg (undef);	2563	$exit->msg (undef);
1878	}	2564	}
1879	}	2565	}
…		…
1881	sub cf::object::player::enter_exit {	2567	sub cf::object::player::enter_exit {
1882	my ($self, $exit) = @_;	2568	my ($self, $exit) = @_;
1883		2569
1884	return unless $self->type == cf::PLAYER;	2570	return unless $self->type == cf::PLAYER;
1885		2571
		2572	if ($exit->slaying eq "/!") {
		2573	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2574	# the problem is that $exit might not survive long enough
		2575	# so it needs to be done right now, right here
		2576	cf::sync_job { prepare_random_map $exit };
		2577	}
		2578
		2579	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2580	my $hp = $exit->stats->hp;
		2581	my $sp = $exit->stats->sp;
		2582
1886	$self->enter_link;	2583	$self->enter_link;
		2584
		2585	# if exit is damned, update players death & WoR home-position
		2586	$self->contr->savebed ($slaying, $hp, $sp)
		2587	if $exit->flag (FLAG_DAMNED);
1887		2588
1888	(async {	2589	(async {
1889	$self->deactivate_recursive; # just to be sure	2590	$self->deactivate_recursive; # just to be sure
1890	unless (eval {	2591	unless (eval {
1891	prepare_random_map $exit	2592	$self->goto ($slaying, $hp, $sp);
1892	if $exit->slaying eq "/!";
1893
1894	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1895	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1896		2593
1897	1;	2594	1;
1898	}) {	2595	}) {
1899	$self->message ("Something went wrong deep within the crossfire server. "	2596	$self->message ("Something went wrong deep within the crossfire server. "
1900	. "I'll try to bring you back to the map you were before. "	2597	. "I'll try to bring you back to the map you were before. "
1901	. "Please report this to the dungeon master!",	2598	. "Please report this to the dungeon master!",
1902	cf::NDI_UNIQUE | cf::NDI_RED);	2599	cf::NDI_UNIQUE | cf::NDI_RED);
1903		2600
1904	warn "ERROR in enter_exit: $@";	2601	warn "ERROR in enter_exit: $@";
1905	$self->leave_link;	2602	$self->leave_link;
1906	}	2603	}
1907	})->prio (1);	2604	})->prio (1);
…		…
1920		2617
1921	sub cf::client::send_drawinfo {	2618	sub cf::client::send_drawinfo {
1922	my ($self, $text, $flags) = @_;	2619	my ($self, $text, $flags) = @_;
1923		2620
1924	utf8::encode $text;	2621	utf8::encode $text;
1925	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2622	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1926	}	2623	}
1927		2624
		2625	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2626
		2627	Send a drawinfo or msg packet to the client, formatting the msg for the
		2628	client if neccessary. C<$type> should be a string identifying the type of
		2629	the message, with C<log> being the default. If C<$color> is negative, suppress
		2630	the message unless the client supports the msg packet.
		2631
		2632	=cut
		2633
		2634	our %CHANNEL = (
		2635	"c/identify" => {
		2636	id => "identify",
		2637	title => "Identify",
		2638	reply => undef,
		2639	tooltip => "Items recently identified",
		2640	},
		2641	"c/examine" => {
		2642	id => "examine",
		2643	title => "Examine",
		2644	reply => undef,
		2645	tooltip => "Signs and other items you examined",
		2646	},
		2647	);
		2648
		2649	sub cf::client::send_msg {
		2650	my ($self, $channel, $msg, $color, @extra) = @_;
		2651
		2652	$msg = $self->pl->expand_cfpod ($msg);
		2653
		2654	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2655
		2656	# check predefined channels, for the benefit of C
		2657	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2658
		2659	if (ref $channel) {
		2660	# send meta info to client, if not yet sent
		2661	unless (exists $self->{channel}{$channel->{id}}) {
		2662	$self->{channel}{$channel->{id}} = $channel;
		2663	$self->ext_msg (channel_info => $channel)
		2664	if $self->can_msg;
		2665	}
		2666
		2667	$channel = $channel->{id};
		2668	}
		2669
		2670	return unless @extra || length $msg;
		2671
		2672	if ($self->can_msg) {
		2673	# default colour, mask it out
		2674	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2675	if $color & cf::NDI_DEF;
		2676
		2677	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2678	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2679	} else {
		2680	if ($color >= 0) {
		2681	# replace some tags by gcfclient-compatible ones
		2682	for ($msg) {
		2683	1 while
		2684	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2685	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2686	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2687	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2688	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2689	}
		2690
		2691	$color &= cf::NDI_COLOR_MASK;
		2692
		2693	utf8::encode $msg;
		2694
		2695	if (0 && $msg =~ /\[/) {
		2696	# COMMAND/INFO
		2697	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2698	} else {
		2699	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2700	$self->send_packet ("drawinfo $color $msg")
		2701	}
		2702	}
		2703	}
		2704	}
		2705
		2706	=item $client->ext_msg ($type, @msg)
		2707
		2708	Sends an ext event to the client.
		2709
		2710	=cut
		2711
		2712	sub cf::client::ext_msg($$@) {
		2713	my ($self, $type, @msg) = @_;
		2714
		2715	if ($self->extcmd == 2) {
		2716	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2717	} elsif ($self->extcmd == 1) { # TODO: remove
		2718	push @msg, msgtype => "event_$type";
		2719	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2720	}
		2721	}
		2722
		2723	=item $client->ext_reply ($msgid, @msg)
		2724
		2725	Sends an ext reply to the client.
		2726
		2727	=cut
		2728
		2729	sub cf::client::ext_reply($$@) {
		2730	my ($self, $id, @msg) = @_;
		2731
		2732	if ($self->extcmd == 2) {
		2733	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2734	} elsif ($self->extcmd == 1) {
		2735	#TODO: version 1, remove
		2736	unshift @msg, msgtype => "reply", msgid => $id;
		2737	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2738	}
		2739	}
1928		2740
1929	=item $success = $client->query ($flags, "text", \&cb)	2741	=item $success = $client->query ($flags, "text", \&cb)
1930		2742
1931	Queues a query to the client, calling the given callback with	2743	Queues a query to the client, calling the given callback with
1932	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2744	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1933	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2745	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1934		2746
1935	Queries can fail, so check the return code. Or don't, as queries will become	2747	Queries can fail, so check the return code. Or don't, as queries will
1936	reliable at some point in the future.	2748	become reliable at some point in the future.
1937		2749
1938	=cut	2750	=cut
1939		2751
1940	sub cf::client::query {	2752	sub cf::client::query {
1941	my ($self, $flags, $text, $cb) = @_;	2753	my ($self, $flags, $text, $cb) = @_;
…		…
1949	utf8::encode $text;	2761	utf8::encode $text;
1950	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2762	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1951		2763
1952	$self->send_packet ($self->{query_queue}[0][0])	2764	$self->send_packet ($self->{query_queue}[0][0])
1953	if @{ $self->{query_queue} } == 1;	2765	if @{ $self->{query_queue} } == 1;
		2766
		2767	1
1954	}	2768	}
1955		2769
1956	cf::client->attach (	2770	cf::client->attach (
		2771	on_connect => sub {
		2772	my ($ns) = @_;
		2773
		2774	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2775	},
1957	on_reply => sub {	2776	on_reply => sub {
1958	my ($ns, $msg) = @_;	2777	my ($ns, $msg) = @_;
1959		2778
1960	# this weird shuffling is so that direct followup queries	2779	# this weird shuffling is so that direct followup queries
1961	# get handled first	2780	# get handled first
1962	my $queue = delete $ns->{query_queue}	2781	my $queue = delete $ns->{query_queue}
1963	or return; # be conservative, not sure how that can happen, but we saw a crash here	2782	or return; # be conservative, not sure how that can happen, but we saw a crash here
1964		2783
1965	(shift @$queue)->[1]->($msg);	2784	(shift @$queue)->[1]->($msg);
		2785	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1966		2786
1967	push @{ $ns->{query_queue} }, @$queue;	2787	push @{ $ns->{query_queue} }, @$queue;
1968		2788
1969	if (@{ $ns->{query_queue} } == @$queue) {	2789	if (@{ $ns->{query_queue} } == @$queue) {
1970	if (@$queue) {	2790	if (@$queue) {
…		…
1972	} else {	2792	} else {
1973	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2793	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1974	}	2794	}
1975	}	2795	}
1976	},	2796	},
		2797	on_exticmd => sub {
		2798	my ($ns, $buf) = @_;
		2799
		2800	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2801
		2802	if (ref $msg) {
		2803	my ($type, $reply, @payload) =
		2804	"ARRAY" eq ref $msg
		2805	? @$msg
		2806	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2807
		2808	my @reply;
		2809
		2810	if (my $cb = $EXTICMD{$type}) {
		2811	@reply = $cb->($ns, @payload);
		2812	}
		2813
		2814	$ns->ext_reply ($reply, @reply)
		2815	if $reply;
		2816
		2817	} else {
		2818	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2819	}
		2820
		2821	cf::override;
		2822	},
1977	);	2823	);
1978		2824
1979	=item $client->async (\&cb)	2825	=item $client->async (\&cb)
1980		2826
1981	Create a new coroutine, running the specified callback. The coroutine will	2827	Create a new coroutine, running the specified callback. The coroutine will
…		…
2022	our $safe = new Safe "safe";	2868	our $safe = new Safe "safe";
2023	our $safe_hole = new Safe::Hole;	2869	our $safe_hole = new Safe::Hole;
2024		2870
2025	$SIG{FPE} = 'IGNORE';	2871	$SIG{FPE} = 'IGNORE';
2026		2872
2027	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2873	$safe->permit_only (Opcode::opset qw(
		2874	:base_core :base_mem :base_orig :base_math
		2875	grepstart grepwhile mapstart mapwhile
		2876	sort time
		2877	));
2028		2878
2029	# here we export the classes and methods available to script code	2879	# here we export the classes and methods available to script code
2030		2880
2031	=pod	2881	=pod
2032		2882
2033	The following fucntions and emthods are available within a safe environment:	2883	The following functions and methods are available within a safe environment:
2034		2884
2035	cf::object contr pay_amount pay_player map	2885	cf::object
		2886	contr pay_amount pay_player map x y force_find force_add
		2887	insert remove name archname title slaying race decrease_ob_nr
		2888
2036	cf::object::player player	2889	cf::object::player
2037	cf::player peaceful	2890	player
2038	cf::map trigger	2891
		2892	cf::player
		2893	peaceful
		2894
		2895	cf::map
		2896	trigger
2039		2897
2040	=cut	2898	=cut
2041		2899
2042	for (	2900	for (
2043	["cf::object" => qw(contr pay_amount pay_player map)],	2901	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2902	insert remove inv name archname title slaying race
		2903	decrease_ob_nr)],
2044	["cf::object::player" => qw(player)],	2904	["cf::object::player" => qw(player)],
2045	["cf::player" => qw(peaceful)],	2905	["cf::player" => qw(peaceful)],
2046	["cf::map" => qw(trigger)],	2906	["cf::map" => qw(trigger)],
2047	) {	2907	) {
2048	no strict 'refs';	2908	no strict 'refs';
…		…
2119	=back	2979	=back
2120		2980
2121	=cut	2981	=cut
2122		2982
2123	#############################################################################	2983	#############################################################################
		2984	# the server's init and main functions
2124		2985
2125	=head2 EXTENSION DATABASE SUPPORT	2986	sub load_facedata($) {
		2987	my ($path) = @_;
2126		2988
2127	Crossfire maintains a very simple database for extension use. It can	2989	# HACK to clear player env face cache, we need some signal framework
2128	currently store anything that can be serialised using Storable, which	2990	# for this (global event?)
2129	excludes objects.	2991	%ext::player_env::MUSIC_FACE_CACHE = ();
2130		2992
2131	The parameter C<$family> should best start with the name of the extension	2993	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2132	using it, it should be unique.
2133		2994
2134	=over 4	2995	warn "loading facedata from $path\n";
2135		2996
2136	=item $hashref = cf::db_get $family	2997	my $facedata;
		2998	0 < aio_load $path, $facedata
		2999	or die "$path: $!";
2137		3000
2138	Return a hashref for use by the extension C<$family>, which can be	3001	$facedata = Coro::Storable::thaw $facedata;
2139	modified. After modifications, you have to call C<cf::db_dirty> or
2140	C<cf::db_sync>.
2141		3002
2142	=item $value = cf::db_get $family => $key	3003	$facedata->{version} == 2
		3004	or cf::cleanup "$path: version mismatch, cannot proceed.";
2143		3005
2144	Returns a single value from the database	3006	# patch in the exptable
2145		3007	$facedata->{resource}{"res/exp_table"} = {
2146	=item cf::db_put $family => $hashref	3008	type => FT_RSRC,
2147		3009	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2148	Stores the given family hashref into the database. Updates are delayed, if
2149	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2150
2151	=item cf::db_put $family => $key => $value
2152
2153	Stores the given C<$value> in the family hash. Updates are delayed, if you
2154	want the data to be synced to disk immediately, use C<cf::db_sync>.
2155
2156	=item cf::db_dirty
2157
2158	Marks the database as dirty, to be updated at a later time.
2159
2160	=item cf::db_sync
2161
2162	Immediately write the database to disk I<if it is dirty>.
2163
2164	=cut
2165
2166	our $DB;
2167
2168	{
2169	my $path = cf::localdir . "/database.pst";
2170
2171	sub db_load() {
2172	$DB = stat $path ? Storable::retrieve $path : { };
2173	}
2174
2175	my $pid;
2176
2177	sub db_save() {
2178	waitpid $pid, 0 if $pid;
2179	if (0 == ($pid = fork)) {
2180	$DB->{_meta}{version} = 1;
2181	Storable::nstore $DB, "$path~";
2182	rename "$path~", $path;
2183	cf::_exit 0 if defined $pid;
2184	}
2185	}
2186
2187	my $dirty;
2188
2189	sub db_sync() {
2190	db_save if $dirty;
2191	undef $dirty;
2192	}
2193
2194	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2195	db_sync;
2196	});	3010	};
		3011	cf::cede_to_tick;
2197		3012
2198	sub db_dirty() {
2199	$dirty = 1;
2200	$idle->start;
2201	}	3013	{
		3014	my $faces = $facedata->{faceinfo};
2202		3015
2203	sub db_get($;$) {	3016	while (my ($face, $info) = each %$faces) {
2204	@_ >= 2	3017	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2205	? $DB->{$_[0]}{$_[1]}	3018	cf::face::set_visibility $idx, $info->{visibility};
2206	: ($DB->{$_[0]} ||= { })	3019	cf::face::set_magicmap $idx, $info->{magicmap};
2207	}	3020	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3021	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2208		3022
2209	sub db_put($$;$) {	3023	cf::cede_to_tick;
2210	if (@_ >= 3) {
2211	$DB->{$_[0]}{$_[1]} = $_[2];
2212	} else {
2213	$DB->{$_[0]} = $_[1];
2214	}
2215	db_dirty;
2216	}
2217
2218	cf::global->attach (
2219	prio => 10000,
2220	on_cleanup => sub {
2221	db_sync;
2222	},	3024	}
2223	);
2224	}
2225		3025
2226	#############################################################################	3026	while (my ($face, $info) = each %$faces) {
2227	# the server's main()	3027	next unless $info->{smooth};
		3028	my $idx = cf::face::find $face
		3029	or next;
		3030	if (my $smooth = cf::face::find $info->{smooth}) {
		3031	cf::face::set_smooth $idx, $smooth;
		3032	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3033	} else {
		3034	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3035	}
2228		3036
2229	sub cfg_load {	3037	cf::cede_to_tick;
		3038	}
		3039	}
		3040
		3041	{
		3042	my $anims = $facedata->{animinfo};
		3043
		3044	while (my ($anim, $info) = each %$anims) {
		3045	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3046	cf::cede_to_tick;
		3047	}
		3048
		3049	cf::anim::invalidate_all; # d'oh
		3050	}
		3051
		3052	{
		3053	# TODO: for gcfclient pleasure, we should give resources
		3054	# that gcfclient doesn't grok a >10000 face index.
		3055	my $res = $facedata->{resource};
		3056
		3057	my $soundconf = delete $res->{"res/sound.conf"};
		3058
		3059	while (my ($name, $info) = each %$res) {
		3060	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3061	my $data;
		3062
		3063	if ($info->{type} & 1) {
		3064	# prepend meta info
		3065
		3066	my $meta = $enc->encode ({
		3067	name => $name,
		3068	%{ $info->{meta} || {} },
		3069	});
		3070
		3071	$data = pack "(w/a*)*", $meta, $info->{data};
		3072	} else {
		3073	$data = $info->{data};
		3074	}
		3075
		3076	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3077	cf::face::set_type $idx, $info->{type};
		3078
		3079	cf::cede_to_tick;
		3080	}
		3081
		3082	if ($soundconf) {
		3083	$soundconf = $enc->decode (delete $soundconf->{data});
		3084
		3085	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3086	my $sound = $soundconf->{compat}[$_]
		3087	or next;
		3088
		3089	my $face = cf::face::find "sound/$sound->[1]";
		3090	cf::sound::set $sound->[0] => $face;
		3091	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3092	}
		3093
		3094	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3095	my $face = cf::face::find "sound/$v";
		3096	cf::sound::set $k => $face;
		3097	}
		3098	}
		3099	}
		3100
		3101	1
		3102	}
		3103
		3104	register_exticmd fx_want => sub {
		3105	my ($ns, $want) = @_;
		3106
		3107	while (my ($k, $v) = each %$want) {
		3108	$ns->fx_want ($k, $v);
		3109	}
		3110	};
		3111
		3112	sub reload_regions {
		3113	# HACK to clear player env face cache, we need some signal framework
		3114	# for this (global event?)
		3115	%ext::player_env::MUSIC_FACE_CACHE = ();
		3116
		3117	load_resource_file "$MAPDIR/regions"
		3118	or die "unable to load regions file\n";
		3119
		3120	for (cf::region::list) {
		3121	$_->{match} = qr/$_->{match}/
		3122	if exists $_->{match};
		3123	}
		3124	}
		3125
		3126	sub reload_facedata {
		3127	load_facedata "$DATADIR/facedata"
		3128	or die "unable to load facedata\n";
		3129	}
		3130
		3131	sub reload_archetypes {
		3132	load_resource_file "$DATADIR/archetypes"
		3133	or die "unable to load archetypes\n";
		3134	#d# NEED to laod twice to resolve forward references
		3135	# this really needs to be done in an extra post-pass
		3136	# (which needs to be synchronous, so solve it differently)
		3137	load_resource_file "$DATADIR/archetypes"
		3138	or die "unable to load archetypes\n";
		3139	}
		3140
		3141	sub reload_treasures {
		3142	load_resource_file "$DATADIR/treasures"
		3143	or die "unable to load treasurelists\n";
		3144	}
		3145
		3146	sub reload_resources {
		3147	warn "reloading resource files...\n";
		3148
		3149	reload_regions;
		3150	reload_facedata;
		3151	#reload_archetypes;#d#
		3152	reload_archetypes;
		3153	reload_treasures;
		3154
		3155	warn "finished reloading resource files\n";
		3156	}
		3157
		3158	sub init {
		3159	reload_resources;
		3160	}
		3161
		3162	sub reload_config {
2230	open my $fh, "<:utf8", cf::confdir . "/config"	3163	open my $fh, "<:utf8", "$CONFDIR/config"
2231	or return;	3164	or return;
2232		3165
2233	local $/;	3166	local $/;
2234	*CFG = YAML::Syck::Load <$fh>;	3167	*CFG = YAML::Syck::Load <$fh>;
2235		3168
…		…
2249		3182
2250	sub main {	3183	sub main {
2251	# we must not ever block the main coroutine	3184	# we must not ever block the main coroutine
2252	local $Coro::idle = sub {	3185	local $Coro::idle = sub {
2253	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3186	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3187	(async {
2254	async { Event::one_event };	3188	Event::one_event;
		3189	})->prio (Coro::PRIO_MAX);
2255	};	3190	};
2256		3191
2257	cfg_load;	3192	reload_config;
2258	db_load;	3193	db_init;
2259	load_extensions;	3194	load_extensions;
		3195
		3196	$TICK_WATCHER->start;
2260	Event::loop;	3197	Event::loop;
2261	}	3198	}
2262		3199
2263	#############################################################################	3200	#############################################################################
2264	# initialisation and cleanup	3201	# initialisation and cleanup
2265		3202
2266	# install some emergency cleanup handlers	3203	# install some emergency cleanup handlers
2267	BEGIN {	3204	BEGIN {
2268	for my $signal (qw(INT HUP TERM)) {	3205	for my $signal (qw(INT HUP TERM)) {
2269	Event->signal (	3206	Event->signal (
		3207	reentrant => 0,
2270	data => WF_AUTOCANCEL,	3208	data => WF_AUTOCANCEL,
2271	signal => $signal,	3209	signal => $signal,
		3210	prio => 0,
2272	cb => sub {	3211	cb => sub {
2273	cf::cleanup "SIG$signal";	3212	cf::cleanup "SIG$signal";
2274	},	3213	},
2275	);	3214	);
2276	}	3215	}
2277	}	3216	}
2278		3217
		3218	sub write_runtime {
		3219	my $runtime = "$LOCALDIR/runtime";
		3220
		3221	# first touch the runtime file to show we are still running:
		3222	# the fsync below can take a very very long time.
		3223
		3224	IO::AIO::aio_utime $runtime, undef, undef;
		3225
		3226	my $guard = cf::lock_acquire "write_runtime";
		3227
		3228	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3229	or return;
		3230
		3231	my $value = $cf::RUNTIME + 90 + 10;
		3232	# 10 is the runtime save interval, for a monotonic clock
		3233	# 60 allows for the watchdog to kill the server.
		3234
		3235	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3236	and return;
		3237
		3238	# always fsync - this file is important
		3239	aio_fsync $fh
		3240	and return;
		3241
		3242	# touch it again to show we are up-to-date
		3243	aio_utime $fh, undef, undef;
		3244
		3245	close $fh
		3246	or return;
		3247
		3248	aio_rename "$runtime~", $runtime
		3249	and return;
		3250
		3251	warn "runtime file written.\n";
		3252
		3253	1
		3254	}
		3255
2279	sub emergency_save() {	3256	sub emergency_save() {
2280	my $freeze_guard = cf::freeze_mainloop;	3257	my $freeze_guard = cf::freeze_mainloop;
2281		3258
2282	warn "enter emergency perl save\n";	3259	warn "enter emergency perl save\n";
2283		3260
2284	cf::sync_job {	3261	cf::sync_job {
2285	# use a peculiar iteration method to avoid tripping on perl	3262	# use a peculiar iteration method to avoid tripping on perl
2286	# refcount bugs in for. also avoids problems with players	3263	# refcount bugs in for. also avoids problems with players
2287	# and maps saved/Destroyed asynchronously.	3264	# and maps saved/destroyed asynchronously.
2288	warn "begin emergency player save\n";	3265	warn "begin emergency player save\n";
2289	for my $login (keys %cf::PLAYER) {	3266	for my $login (keys %cf::PLAYER) {
2290	my $pl = $cf::PLAYER{$login} or next;	3267	my $pl = $cf::PLAYER{$login} or next;
2291	$pl->valid or next;	3268	$pl->valid or next;
2292	$pl->save;	3269	$pl->save;
…		…
2298	my $map = $cf::MAP{$path} or next;	3275	my $map = $cf::MAP{$path} or next;
2299	$map->valid or next;	3276	$map->valid or next;
2300	$map->save;	3277	$map->save;
2301	}	3278	}
2302	warn "end emergency map save\n";	3279	warn "end emergency map save\n";
		3280
		3281	warn "begin emergency database checkpoint\n";
		3282	BDB::db_env_txn_checkpoint $DB_ENV;
		3283	warn "end emergency database checkpoint\n";
2303	};	3284	};
2304		3285
2305	warn "leave emergency perl save\n";	3286	warn "leave emergency perl save\n";
2306	}	3287	}
2307		3288
		3289	sub post_cleanup {
		3290	my ($make_core) = @_;
		3291
		3292	warn Carp::longmess "post_cleanup backtrace"
		3293	if $make_core;
		3294	}
		3295
2308	sub reload() {	3296	sub do_reload_perl() {
2309	# can/must only be called in main	3297	# can/must only be called in main
2310	if ($Coro::current != $Coro::main) {	3298	if ($Coro::current != $Coro::main) {
2311	warn "can only reload from main coroutine\n";	3299	warn "can only reload from main coroutine";
2312	return;	3300	return;
2313	}	3301	}
2314		3302
2315	warn "reloading...";	3303	warn "reloading...";
2316		3304
2317	warn "freezing server";	3305	warn "entering sync_job";
2318	my $guard = freeze_mainloop;	3306
		3307	cf::sync_job {
		3308	cf::write_runtime; # external watchdog should not bark
2319	cf::emergency_save;	3309	cf::emergency_save;
		3310	cf::write_runtime; # external watchdog should not bark
2320		3311
2321	warn "sync database to disk";	3312	warn "syncing database to disk";
2322	cf::db_sync;	3313	BDB::db_env_txn_checkpoint $DB_ENV;
2323	IO::AIO::flush;
2324		3314
2325	eval {
2326	# if anything goes wrong in here, we should simply crash as we already saved	3315	# if anything goes wrong in here, we should simply crash as we already saved
2327		3316
2328	warn "cancel all watchers";	3317	warn "cancelling all WF_AUTOCANCEL watchers";
2329	for (Event::all_watchers) {	3318	for (Event::all_watchers) {
2330	$_->cancel if $_->data & WF_AUTOCANCEL;	3319	$_->cancel if $_->data & WF_AUTOCANCEL;
2331	}	3320	}
2332		3321
		3322	warn "flushing outstanding aio requests";
		3323	for (;;) {
		3324	BDB::flush;
		3325	IO::AIO::flush;
		3326	Coro::cede;
		3327	last unless IO::AIO::nreqs || BDB::nreqs;
		3328	warn "iterate...";
		3329	}
		3330
		3331	++$RELOAD;
		3332
2333	warn "cancel all extension coros";	3333	warn "cancelling all extension coros";
2334	$_->cancel for values %EXT_CORO;	3334	$_->cancel for values %EXT_CORO;
2335	%EXT_CORO = ();	3335	%EXT_CORO = ();
2336		3336
2337	warn "remove commands";	3337	warn "removing commands";
2338	%COMMAND = ();	3338	%COMMAND = ();
2339		3339
2340	warn "remove ext commands";	3340	warn "removing ext/exti commands";
2341	%EXTCMD = ();	3341	%EXTCMD = ();
		3342	%EXTICMD = ();
2342		3343
2343	warn "unload/nuke all extensions";	3344	warn "unloading/nuking all extensions";
2344	for my $pkg (@EXTS) {	3345	for my $pkg (@EXTS) {
2345	warn "... unloading $pkg";	3346	warn "... unloading $pkg";
2346		3347
2347	if (my $cb = $pkg->can ("unload")) {	3348	if (my $cb = $pkg->can ("unload")) {
2348	eval {	3349	eval {
…		…
2353		3354
2354	warn "... nuking $pkg";	3355	warn "... nuking $pkg";
2355	Symbol::delete_package $pkg;	3356	Symbol::delete_package $pkg;
2356	}	3357	}
2357		3358
2358	warn "unload all perl modules loaded from $LIBDIR";	3359	warn "unloading all perl modules loaded from $LIBDIR";
2359	while (my ($k, $v) = each %INC) {	3360	while (my ($k, $v) = each %INC) {
2360	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3361	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2361		3362
2362	warn "removing <$k>";	3363	warn "... unloading $k";
2363	delete $INC{$k};	3364	delete $INC{$k};
2364		3365
2365	$k =~ s/\.pm$//;	3366	$k =~ s/\.pm$//;
2366	$k =~ s/\//::/g;	3367	$k =~ s/\//::/g;
2367		3368
…		…
2370	}	3371	}
2371		3372
2372	Symbol::delete_package $k;	3373	Symbol::delete_package $k;
2373	}	3374	}
2374		3375
2375	warn "get rid of safe::, as good as possible";	3376	warn "getting rid of safe::, as good as possible";
2376	Symbol::delete_package "safe::$_"	3377	Symbol::delete_package "safe::$_"
2377	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3378	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2378		3379
2379	warn "unload cf.pm \"a bit\"";	3380	warn "unloading cf.pm \"a bit\"";
2380	delete $INC{"cf.pm"};	3381	delete $INC{"cf.pm"};
		3382	delete $INC{"cf/pod.pm"};
2381		3383
2382	# don't, removes xs symbols, too,	3384	# don't, removes xs symbols, too,
2383	# and global variables created in xs	3385	# and global variables created in xs
2384	#Symbol::delete_package __PACKAGE__;	3386	#Symbol::delete_package __PACKAGE__;
2385		3387
		3388	warn "unload completed, starting to reload now";
		3389
2386	warn "reloading cf.pm";	3390	warn "reloading cf.pm";
2387	require cf;	3391	require cf;
2388	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3392	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2389		3393
2390	warn "load config and database again";	3394	warn "loading config and database again";
2391	cf::cfg_load;	3395	cf::reload_config;
2392	cf::db_load;
2393		3396
2394	warn "load extensions";	3397	warn "loading extensions";
2395	cf::load_extensions;	3398	cf::load_extensions;
2396		3399
2397	warn "reattach attachments to objects/players";	3400	warn "reattaching attachments to objects/players";
2398	_global_reattach;	3401	_global_reattach; # objects, sockets
2399	warn "reattach attachments to maps";	3402	warn "reattaching attachments to maps";
2400	reattach $_ for values %MAP;	3403	reattach $_ for values %MAP;
2401	};	3404	warn "reattaching attachments to players";
		3405	reattach $_ for values %PLAYER;
2402		3406
2403	if ($@) {	3407	warn "leaving sync_job";
		3408
		3409	1
		3410	} or do {
2404	warn $@;	3411	warn $@;
2405	warn "error while reloading, exiting.";	3412	warn "error while reloading, exiting.";
2406	exit 1;	3413	exit 1;
2407	}	3414	};
2408		3415
2409	warn "reloaded";	3416	warn "reloaded";
2410	};	3417	};
2411		3418
2412	#############################################################################	3419	our $RELOAD_WATCHER; # used only during reload
2413		3420
2414	unless ($LINK_MAP) {	3421	sub reload_perl() {
2415	$LINK_MAP = cf::map::new;	3422	# doing reload synchronously and two reloads happen back-to-back,
		3423	# coro crashes during coro_state_free->destroy here.
2416		3424
2417	$LINK_MAP->width (41);	3425	$RELOAD_WATCHER ||= Event->timer (
2418	$LINK_MAP->height (41);	3426	reentrant => 0,
2419	$LINK_MAP->alloc;
2420	$LINK_MAP->path ("{link}");
2421	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2422	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2423
2424	# dirty hack because... archetypes are not yet loaded
2425	Event->timer (
2426	after => 10,	3427	after => 0,
		3428	data => WF_AUTOCANCEL,
2427	cb => sub {	3429	cb => sub {
2428	$_[0]->w->cancel;	3430	do_reload_perl;
2429		3431	undef $RELOAD_WATCHER;
2430	# provide some exits "home"
2431	my $exit = cf::object::new "exit";
2432
2433	$exit->slaying ($EMERGENCY_POSITION->[0]);
2434	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2435	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2436
2437	$LINK_MAP->insert ($exit->clone, 19, 19);
2438	$LINK_MAP->insert ($exit->clone, 19, 20);
2439	$LINK_MAP->insert ($exit->clone, 19, 21);
2440	$LINK_MAP->insert ($exit->clone, 20, 19);
2441	$LINK_MAP->insert ($exit->clone, 20, 21);
2442	$LINK_MAP->insert ($exit->clone, 21, 19);
2443	$LINK_MAP->insert ($exit->clone, 21, 20);
2444	$LINK_MAP->insert ($exit->clone, 21, 21);
2445
2446	$exit->destroy;
2447	});	3432	},
2448		3433	);
2449	$LINK_MAP->{deny_save} = 1;
2450	$LINK_MAP->{deny_reset} = 1;
2451
2452	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2453	}	3434	}
2454		3435
2455	register_command "reload" => sub {	3436	register_command "reload" => sub {
2456	my ($who, $arg) = @_;	3437	my ($who, $arg) = @_;
2457		3438
2458	if ($who->flag (FLAG_WIZ)) {	3439	if ($who->flag (FLAG_WIZ)) {
2459	$who->message ("start of reload.");
2460	reload;
2461	$who->message ("end of reload.");	3440	$who->message ("reloading server.");
		3441	async { reload_perl };
2462	}	3442	}
2463	};	3443	};
2464		3444
2465	unshift @INC, $LIBDIR;	3445	unshift @INC, $LIBDIR;
		3446
		3447	my $bug_warning = 0;
		3448
		3449	our @WAIT_FOR_TICK;
		3450	our @WAIT_FOR_TICK_BEGIN;
		3451
		3452	sub wait_for_tick {
		3453	return unless $TICK_WATCHER->is_active;
		3454	return if $Coro::current == $Coro::main;
		3455
		3456	my $signal = new Coro::Signal;
		3457	push @WAIT_FOR_TICK, $signal;
		3458	$signal->wait;
		3459	}
		3460
		3461	sub wait_for_tick_begin {
		3462	return unless $TICK_WATCHER->is_active;
		3463	return if $Coro::current == $Coro::main;
		3464
		3465	my $signal = new Coro::Signal;
		3466	push @WAIT_FOR_TICK_BEGIN, $signal;
		3467	$signal->wait;
		3468	}
2466		3469
2467	$TICK_WATCHER = Event->timer (	3470	$TICK_WATCHER = Event->timer (
2468	reentrant => 0,	3471	reentrant => 0,
		3472	parked => 1,
2469	prio => 0,	3473	prio => 0,
2470	at => $NEXT_TICK || $TICK,	3474	at => $NEXT_TICK || $TICK,
2471	data => WF_AUTOCANCEL,	3475	data => WF_AUTOCANCEL,
2472	cb => sub {	3476	cb => sub {
		3477	if ($Coro::current != $Coro::main) {
		3478	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3479	unless ++$bug_warning > 10;
		3480	return;
		3481	}
		3482
2473	$NOW = Event::time;	3483	$NOW = $tick_start = Event::time;
2474		3484
2475	cf::server_tick; # one server iteration	3485	cf::server_tick; # one server iteration
		3486
2476	$RUNTIME += $TICK;	3487	$RUNTIME += $TICK;
2477	$NEXT_TICK += $TICK;	3488	$NEXT_TICK += $TICK;
2478		3489
2479	$WAIT_FOR_TICK->broadcast;	3490	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2480	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3491	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3492	Coro::async_pool {
		3493	write_runtime
		3494	or warn "ERROR: unable to write runtime file: $!";
		3495	};
		3496	}
		3497
		3498	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3499	$sig->send;
		3500	}
		3501	while (my $sig = shift @WAIT_FOR_TICK) {
		3502	$sig->send;
		3503	}
		3504
		3505	$NOW = Event::time;
2481		3506
2482	# if we are delayed by four ticks or more, skip them all	3507	# if we are delayed by four ticks or more, skip them all
2483	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3508	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2484		3509
2485	$TICK_WATCHER->at ($NEXT_TICK);	3510	$TICK_WATCHER->at ($NEXT_TICK);
2486	$TICK_WATCHER->start;	3511	$TICK_WATCHER->start;
		3512
		3513	$LOAD = ($NOW - $tick_start) / $TICK;
		3514	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3515
		3516	_post_tick;
2487	},	3517	},
2488	);	3518	);
2489		3519
		3520	{
		3521	BDB::min_parallel 8;
2490	IO::AIO::max_poll_time $TICK * 0.2;	3522	BDB::max_poll_time $TICK * 0.1;
2491		3523	$BDB_POLL_WATCHER = Event->io (
2492	Event->io (	3524	reentrant => 0,
2493	fd => IO::AIO::poll_fileno,	3525	fd => BDB::poll_fileno,
2494	poll => 'r',	3526	poll => 'r',
2495	prio => 5,	3527	prio => 0,
2496	data => WF_AUTOCANCEL,
2497	cb => \&IO::AIO::poll_cb,
2498	);
2499
2500	Event->timer (
2501	data => WF_AUTOCANCEL,	3528	data => WF_AUTOCANCEL,
		3529	cb => \&BDB::poll_cb,
		3530	);
		3531
		3532	BDB::set_sync_prepare {
		3533	my $status;
		3534	my $current = $Coro::current;
		3535	(
		3536	sub {
		3537	$status = $!;
		3538	$current->ready; undef $current;
		3539	},
		3540	sub {
		3541	Coro::schedule while defined $current;
		3542	$! = $status;
		3543	},
		3544	)
		3545	};
		3546
		3547	unless ($DB_ENV) {
		3548	$DB_ENV = BDB::db_env_create;
		3549	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3550	| BDB::LOG_AUTOREMOVE, 1);
		3551	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3552	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3553
		3554	cf::sync_job {
		3555	eval {
		3556	BDB::db_env_open
		3557	$DB_ENV,
		3558	$BDBDIR,
		3559	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3560	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3561	0666;
		3562
		3563	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3564	};
		3565
		3566	cf::cleanup "db_env_open(db): $@" if $@;
		3567	};
		3568	}
		3569
		3570	$BDB_DEADLOCK_WATCHER = Event->timer (
2502	after => 0,	3571	after => 3,
2503	interval => 10,	3572	interval => 1,
		3573	hard => 1,
		3574	prio => 0,
		3575	data => WF_AUTOCANCEL,
2504	cb => sub {	3576	cb => sub {
2505	(Coro::unblock_sub {	3577	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2506	write_runtime	3578	},
2507	or warn "ERROR: unable to write runtime file: $!";	3579	);
		3580	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3581	after => 11,
		3582	interval => 60,
		3583	hard => 1,
		3584	prio => 0,
		3585	data => WF_AUTOCANCEL,
		3586	cb => sub {
		3587	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3588	},
		3589	);
		3590	$BDB_TRICKLE_WATCHER = Event->timer (
		3591	after => 5,
		3592	interval => 10,
		3593	hard => 1,
		3594	prio => 0,
		3595	data => WF_AUTOCANCEL,
		3596	cb => sub {
		3597	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3598	},
		3599	);
		3600	}
		3601
		3602	{
		3603	IO::AIO::min_parallel 8;
		3604
		3605	undef $Coro::AIO::WATCHER;
		3606	IO::AIO::max_poll_time $TICK * 0.1;
		3607	$AIO_POLL_WATCHER = Event->io (
		3608	reentrant => 0,
		3609	data => WF_AUTOCANCEL,
		3610	fd => IO::AIO::poll_fileno,
		3611	poll => 'r',
		3612	prio => 6,
		3613	cb => \&IO::AIO::poll_cb,
		3614	);
		3615	}
		3616
		3617	my $_log_backtrace;
		3618
		3619	sub _log_backtrace {
		3620	my ($msg, @addr) = @_;
		3621
		3622	$msg =~ s/\n//;
		3623
		3624	# limit the # of concurrent backtraces
		3625	if ($_log_backtrace < 2) {
		3626	++$_log_backtrace;
		3627	async {
		3628	my @bt = fork_call {
		3629	@addr = map { sprintf "%x", $_ } @addr;
		3630	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3631	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3632	or die "addr2line: $!";
		3633
		3634	my @funcs;
		3635	my @res = <$fh>;
		3636	chomp for @res;
		3637	while (@res) {
		3638	my ($func, $line) = splice @res, 0, 2, ();
		3639	push @funcs, "[$func] $line";
		3640	}
		3641
		3642	@funcs
		3643	};
		3644
		3645	LOG llevInfo, "[ABT] $msg\n";
		3646	LOG llevInfo, "[ABT] $_\n" for @bt;
		3647	--$_log_backtrace;
2508	})->();	3648	};
		3649	} else {
		3650	LOG llevInfo, "[ABT] $msg\n";
		3651	LOG llevInfo, "[ABT] [suppressed]\n";
2509	},	3652	}
2510	);	3653	}
		3654
		3655	# load additional modules
		3656	use cf::pod;
2511		3657
2512	END { cf::emergency_save }	3658	END { cf::emergency_save }
2513		3659
2514	1	3660	1
2515		3661

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