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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.211 by root, Tue Feb 13 16:23:32 2007 UTC vs.
Revision 1.455 by root, Sat Sep 27 08:17:40 2008 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
		24	use 5.10.0;
3	use utf8;	25	use utf8;
4	use strict;	26	use strict "vars", "subs";
5		27
6	use Symbol;	28	use Symbol;
7	use List::Util;	29	use List::Util;
8	use Storable;	30	use Socket;
		31	use EV;
9	use Opcode;	32	use Opcode;
10	use Safe;	33	use Safe;
11	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
12		36
13	use Coro 3.5 ();	37	use Coro ();
		38	use Coro::State;
		39	use Coro::Handle;
		40	use Coro::EV;
14	use Coro::Event;	41	use Coro::AnyEvent;
15	use Coro::Timer;	42	use Coro::Timer;
16	use Coro::Signal;	43	use Coro::Signal;
17	use Coro::Semaphore;	44	use Coro::Semaphore;
		45	use Coro::AnyEvent;
18	use Coro::AIO;	46	use Coro::AIO;
		47	use Coro::BDB 1.6;
		48	use Coro::Storable;
		49	use Coro::Util ();
19		50
		51	use JSON::XS 2.01 ();
20	use BDB ();	52	use BDB ();
21	use Data::Dumper;	53	use Data::Dumper;
22	use Digest::MD5;	54	use Digest::MD5;
23	use Fcntl;	55	use Fcntl;
		56	use YAML ();
24	use IO::AIO 2.32 ();	57	use IO::AIO ();
25	use YAML::Syck ();
26	use Time::HiRes;	58	use Time::HiRes;
27	use Compress::LZF;	59	use Compress::LZF;
		60	use Digest::MD5 ();
28		61
		62	AnyEvent::detect;
		63
		64	# configure various modules to our taste
		65	#
		66	$Storable::canonical = 1; # reduce rsync transfers
		67	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		68
		69	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		70
		71	# make sure c-lzf reinitialises itself
		72	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	73	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
30		74
31	use Event; $Event::Eval = 1; # no idea why this is required, but it is
32
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	75	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34
35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
36	$YAML::Syck::ImplicitUnicode = 1;
37
38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
39		76
40	our %COMMAND = ();	77	our %COMMAND = ();
41	our %COMMAND_TIME = ();	78	our %COMMAND_TIME = ();
42		79
43	our @EXTS = (); # list of extension package names	80	our @EXTS = (); # list of extension package names
44	our %EXTCMD = ();	81	our %EXTCMD = ();
		82	our %EXTICMD = ();
45	our %EXT_CORO = (); # coroutines bound to extensions	83	our %EXT_CORO = (); # coroutines bound to extensions
46	our %EXT_MAP = (); # pluggable maps	84	our %EXT_MAP = (); # pluggable maps
47		85
		86	our $RELOAD; # number of reloads so far, non-zero while in reload
48	our @EVENT;	87	our @EVENT;
49	our $LIBDIR = datadir . "/ext";
50		88
51	our $TICK = MAX_TIME * 1e-6;	89	our $CONFDIR = confdir;
52	our $TICK_WATCHER;	90	our $DATADIR = datadir;
53	our $AIO_POLL_WATCHER;	91	our $LIBDIR = "$DATADIR/ext";
54	our $WRITE_RUNTIME_WATCHER;	92	our $PODDIR = "$DATADIR/pod";
		93	our $MAPDIR = "$DATADIR/" . mapdir;
		94	our $LOCALDIR = localdir;
		95	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		96	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		97	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		98	our $RANDOMDIR = "$LOCALDIR/random";
		99	our $BDBDIR = "$LOCALDIR/db";
		100	our $PIDFILE = "$LOCALDIR/pid";
		101	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		102
		103	our %RESOURCE;
		104
		105	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		106	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
55	our $NEXT_TICK;	107	our $NEXT_TICK;
56	our $NOW;
57	our $USE_FSYNC = 1; # use fsync to write maps - default off	108	our $USE_FSYNC = 1; # use fsync to write maps - default off
58		109
		110	our $BDB_DEADLOCK_WATCHER;
		111	our $BDB_CHECKPOINT_WATCHER;
59	our $BDB_POLL_WATCHER;	112	our $BDB_TRICKLE_WATCHER;
60	our $DB_ENV;	113	our $DB_ENV;
61		114
62	our %CFG;	115	our %CFG;
63		116
64	our $UPTIME; $UPTIME ||= time;	117	our $UPTIME; $UPTIME ||= time;
65	our $RUNTIME;	118	our $RUNTIME;
		119	our $NOW;
66		120
67	our %PLAYER; # all users	121	our (%PLAYER, %PLAYER_LOADING); # all users
68	our %MAP; # all maps	122	our (%MAP, %MAP_LOADING ); # all maps
69	our $LINK_MAP; # the special {link} map, which is always available	123	our $LINK_MAP; # the special {link} map, which is always available
70	our $RANDOM_MAPS = cf::localdir . "/random";
71	our $BDB_ENV_DIR = cf::localdir . "/db";
72
73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
75		124
76	# used to convert map paths into valid unix filenames by replacing / by ∕	125	# used to convert map paths into valid unix filenames by replacing / by ∕
77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	126	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
78		127
		128	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		129	our $LOADAVG; # same thing, but with alpha-smoothing
		130	our $JITTER; # average jitter
		131	our $TICK_START; # for load detecting purposes
		132
		133	our @POST_INIT;
		134
79	binmode STDOUT;	135	binmode STDOUT;
80	binmode STDERR;	136	binmode STDERR;
81		137
82	# read virtual server time, if available	138	# read virtual server time, if available
83	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	139	unless ($RUNTIME || !-e $RUNTIMEFILE) {
84	open my $fh, "<", cf::localdir . "/runtime"	140	open my $fh, "<", $RUNTIMEFILE
85	or die "unable to read runtime file: $!";	141	or die "unable to read $RUNTIMEFILE file: $!";
86	$RUNTIME = <$fh> + 0.;	142	$RUNTIME = <$fh> + 0.;
87	}	143	}
88		144
89	mkdir cf::localdir;	145	mkdir $_
90	mkdir cf::localdir . "/" . cf::playerdir;	146	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
91	mkdir cf::localdir . "/" . cf::tmpdir;
92	mkdir cf::localdir . "/" . cf::uniquedir;
93	mkdir $RANDOM_MAPS;
94	mkdir $BDB_ENV_DIR;
95		147
96	our $EMERGENCY_POSITION;	148	our $EMERGENCY_POSITION;
97		149
98	sub cf::map::normalise;	150	sub cf::map::normalise;
99		151
…		…
110	=item $cf::RUNTIME	162	=item $cf::RUNTIME
111		163
112	The time this server has run, starts at 0 and is increased by $cf::TICK on	164	The time this server has run, starts at 0 and is increased by $cf::TICK on
113	every server tick.	165	every server tick.
114		166
115	=item $cf::LIBDIR	167	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		168	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		169	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
116		170
117	The perl library directory, where extensions and cf-specific modules can	171	Various directories - "/etc", read-only install directory, perl-library
118	be found. It will be added to C<@INC> automatically.	172	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		173	unique-items directory, player file directory, random maps directory and
		174	database environment.
119		175
120	=item $cf::NOW	176	=item $cf::NOW
121		177
122	The time of the last (current) server tick.	178	The time of the last (current) server tick.
123		179
124	=item $cf::TICK	180	=item $cf::TICK
125		181
126	The interval between server ticks, in seconds.	182	The interval between server ticks, in seconds.
127		183
		184	=item $cf::LOADAVG
		185
		186	The current CPU load on the server (alpha-smoothed), as a value between 0
		187	(none) and 1 (overloaded), indicating how much time is spent on processing
		188	objects per tick. Healthy values are < 0.5.
		189
		190	=item $cf::LOAD
		191
		192	The raw value load value from the last tick.
		193
128	=item %cf::CFG	194	=item %cf::CFG
129		195
130	Configuration for the server, loaded from C</etc/crossfire/config>, or	196	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
131	from wherever your confdir points to.	197	from wherever your confdir points to.
132		198
133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	199	=item cf::wait_for_tick, cf::wait_for_tick_begin
134		200
135	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	201	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
136	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	202	returns directly I<after> the tick processing (and consequently, can only wake one process
137	processing has been done. Call C<< ->wait >> on them to maximise the	203	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
138	window of cpu time available, or simply to synchronise to the server tick.	204
		205	=item @cf::INVOKE_RESULTS
		206
		207	This array contains the results of the last C<invoke ()> call. When
		208	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		209	that call.
139		210
140	=back	211	=back
141		212
142	=cut	213	=cut
143		214
144	BEGIN {	215	BEGIN {
145	*CORE::GLOBAL::warn = sub {	216	*CORE::GLOBAL::warn = sub {
146	my $msg = join "", @_;	217	my $msg = join "", @_;
147	utf8::encode $msg;
148		218
149	$msg .= "\n"	219	$msg .= "\n"
150	unless $msg =~ /\n$/;	220	unless $msg =~ /\n$/;
151		221
		222	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		223
152	LOG llevError, $msg;	224	LOG llevError, $msg;
153	};	225	};
154	}	226	}
		227
		228	$Coro::State::DIEHOOK = sub {
		229	return unless $^S eq 0; # "eq", not "=="
		230
		231	if ($Coro::current == $Coro::main) {#d#
		232	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		233	return;#d#
		234	}#d#
		235
		236	# kill coroutine otherwise
		237	warn Carp::longmess $_[0];
		238	Coro::terminate
		239	};
		240
		241	$SIG{__DIE__} = sub { }; #d#?
155		242
156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	243	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	244	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
158	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	245	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
159	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	246	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
160	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	247	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		248	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
161	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	249	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
162		250
163	# we bless all objects into (empty) derived classes to force a method lookup	251	# we bless all objects into (empty) derived classes to force a method lookup
164	# within the Safe compartment.	252	# within the Safe compartment.
165	for my $pkg (qw(	253	for my $pkg (qw(
166	cf::global cf::attachable	254	cf::global cf::attachable
167	cf::object cf::object::player	255	cf::object cf::object::player
168	cf::client cf::player	256	cf::client cf::player
169	cf::arch cf::living	257	cf::arch cf::living
		258	cf::map cf::mapspace
170	cf::map cf::party cf::region	259	cf::party cf::region
171	)) {	260	)) {
172	no strict 'refs';
173	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	261	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
174	}	262	}
175		263
176	$Event::DIED = sub {	264	$EV::DIED = sub {
177	warn "error in event callback: @_";	265	warn "error in event callback: @_";
178	};	266	};
		267
		268	#############################################################################
179		269
180	=head2 UTILITY FUNCTIONS	270	=head2 UTILITY FUNCTIONS
181		271
182	=over 4	272	=over 4
183		273
…		…
202	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	292	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
203	$d	293	$d
204	} || "[unable to dump $_[0]: '$@']";	294	} || "[unable to dump $_[0]: '$@']";
205	}	295	}
206		296
207	use JSON::Syck (); # TODO# replace by JSON::PC once working
208
209	=item $ref = cf::from_json $json	297	=item $ref = cf::decode_json $json
210		298
211	Converts a JSON string into the corresponding perl data structure.	299	Converts a JSON string into the corresponding perl data structure.
212		300
213	=cut
214
215	sub from_json($) {
216	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
217	JSON::Syck::Load $_[0]
218	}
219
220	=item $json = cf::to_json $ref	301	=item $json = cf::encode_json $ref
221		302
222	Converts a perl data structure into its JSON representation.	303	Converts a perl data structure into its JSON representation.
223		304
224	=cut	305	=cut
225		306
226	sub to_json($) {	307	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	308
228	JSON::Syck::Dump $_[0]	309	sub encode_json($) { $json_coder->encode ($_[0]) }
		310	sub decode_json($) { $json_coder->decode ($_[0]) }
		311
		312	=item cf::post_init { BLOCK }
		313
		314	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		315	but I<before> the server starts ticking again.
		316
		317	The cdoeblock will have a single boolean argument to indicate whether this
		318	is a reload or not.
		319
		320	=cut
		321
		322	sub post_init(&) {
		323	push @POST_INIT, shift;
229	}	324	}
230		325
231	=item cf::lock_wait $string	326	=item cf::lock_wait $string
232		327
233	Wait until the given lock is available. See cf::lock_acquire.	328	Wait until the given lock is available. See cf::lock_acquire.
…		…
237	Wait until the given lock is available and then acquires it and returns	332	Wait until the given lock is available and then acquires it and returns
238	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	333	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
239	for example when the coroutine gets canceled), the lock is automatically	334	for example when the coroutine gets canceled), the lock is automatically
240	returned.	335	returned.
241		336
		337	Locks are *not* recursive, locking from the same coro twice results in a
		338	deadlocked coro.
		339
242	Lock names should begin with a unique identifier (for example, cf::map::find	340	Lock names should begin with a unique identifier (for example, cf::map::find
243	uses map_find and cf::map::load uses map_load).	341	uses map_find and cf::map::load uses map_load).
244		342
		343	=item $locked = cf::lock_active $string
		344
		345	Return true if the lock is currently active, i.e. somebody has locked it.
		346
245	=cut	347	=cut
246		348
247	our %LOCK;	349	our %LOCK;
		350	our %LOCKER;#d#
248		351
249	sub lock_wait($) {	352	sub lock_wait($) {
250	my ($key) = @_;	353	my ($key) = @_;
251		354
		355	if ($LOCKER{$key} == $Coro::current) {#d#
		356	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		357	return;#d#
		358	}#d#
		359
252	# wait for lock, if any	360	# wait for lock, if any
253	while ($LOCK{$key}) {	361	while ($LOCK{$key}) {
		362	#local $Coro::current->{desc} = "$Coro::current->{desc} <waiting for lock $key>";
254	push @{ $LOCK{$key} }, $Coro::current;	363	push @{ $LOCK{$key} }, $Coro::current;
255	Coro::schedule;	364	Coro::schedule;
256	}	365	}
257	}	366	}
258		367
…		…
261		370
262	# wait, to be sure we are not locked	371	# wait, to be sure we are not locked
263	lock_wait $key;	372	lock_wait $key;
264		373
265	$LOCK{$key} = [];	374	$LOCK{$key} = [];
		375	$LOCKER{$key} = $Coro::current;#d#
266		376
267	Coro::guard {	377	Coro::guard {
		378	delete $LOCKER{$key};#d#
268	# wake up all waiters, to be on the safe side	379	# wake up all waiters, to be on the safe side
269	$_->ready for @{ delete $LOCK{$key} };	380	$_->ready for @{ delete $LOCK{$key} };
270	}	381	}
271	}	382	}
272		383
		384	sub lock_active($) {
		385	my ($key) = @_;
		386
		387	! ! $LOCK{$key}
		388	}
		389
273	sub freeze_mainloop {	390	sub freeze_mainloop {
274	return unless $TICK_WATCHER->is_active;	391	tick_inhibit_inc;
275		392
276	my $guard = Coro::guard {	393	Coro::guard \&tick_inhibit_dec;
277	$TICK_WATCHER->start;	394	}
278	$WRITE_RUNTIME_WATCHER->start;	395
		396	=item cf::periodic $interval, $cb
		397
		398	Like EV::periodic, but randomly selects a starting point so that the actions
		399	get spread over timer.
		400
		401	=cut
		402
		403	sub periodic($$) {
		404	my ($interval, $cb) = @_;
		405
		406	my $start = rand List::Util::min 180, $interval;
		407
		408	EV::periodic $start, $interval, 0, $cb
		409	}
		410
		411	=item cf::get_slot $time[, $priority[, $name]]
		412
		413	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		414	This call blocks and returns only when you have at least C<$time> seconds
		415	of cpu time till the next tick. The slot is only valid till the next cede.
		416
		417	The optional C<$name> can be used to identify the job to run. It might be
		418	used for statistical purposes and should identify the same time-class.
		419
		420	Useful for short background jobs.
		421
		422	=cut
		423
		424	our @SLOT_QUEUE;
		425	our $SLOT_QUEUE;
		426
		427	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		428	$SLOT_QUEUE = Coro::async {
		429	$Coro::current->desc ("timeslot manager");
		430
		431	my $signal = new Coro::Signal;
		432
		433	while () {
		434	next_job:
		435	my $avail = cf::till_tick;
		436	if ($avail > 0.01) {
		437	for (0 .. $#SLOT_QUEUE) {
		438	if ($SLOT_QUEUE[$_][0] < $avail) {
		439	my $job = splice @SLOT_QUEUE, $_, 1, ();
		440	$job->[2]->send;
		441	Coro::cede;
		442	goto next_job;
		443	}
		444	}
		445	}
		446
		447	if (@SLOT_QUEUE) {
		448	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		449	push @cf::WAIT_FOR_TICK, $signal;
		450	$signal->wait;
		451	} else {
		452	Coro::schedule;
		453	}
279	};	454	}
280	$WRITE_RUNTIME_WATCHER->stop;	455	};
281	$TICK_WATCHER->stop;	456
282	$guard	457	sub get_slot($;$$) {
		458	return if tick_inhibit || $Coro::current == $Coro::main;
		459
		460	my ($time, $pri, $name) = @_;
		461
		462	$time = $TICK * .6 if $time > $TICK * .6;
		463	my $sig = new Coro::Signal;
		464
		465	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		466	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		467	$SLOT_QUEUE->ready;
		468	$sig->wait;
283	}	469	}
284		470
285	=item cf::async { BLOCK }	471	=item cf::async { BLOCK }
286		472
287	Currently the same as Coro::async_pool, meaning you cannot use	473	Currently the same as Coro::async_pool, meaning you cannot use
…		…
292		478
293	BEGIN { *async = \&Coro::async_pool }	479	BEGIN { *async = \&Coro::async_pool }
294		480
295	=item cf::sync_job { BLOCK }	481	=item cf::sync_job { BLOCK }
296		482
297	The design of crossfire+ requires that the main coro ($Coro::main) is	483	The design of Deliantra requires that the main coroutine ($Coro::main)
298	always able to handle events or runnable, as crossfire+ is only partly	484	is always able to handle events or runnable, as Deliantra is only
299	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	485	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		486	acceptable.
300		487
301	If it must be done, put the blocking parts into C<sync_job>. This will run	488	If it must be done, put the blocking parts into C<sync_job>. This will run
302	the given BLOCK in another coroutine while waiting for the result. The	489	the given BLOCK in another coroutine while waiting for the result. The
303	server will be frozen during this time, so the block should either finish	490	server will be frozen during this time, so the block should either finish
304	fast or be very important.	491	fast or be very important.
…		…
307		494
308	sub sync_job(&) {	495	sub sync_job(&) {
309	my ($job) = @_;	496	my ($job) = @_;
310		497
311	if ($Coro::current == $Coro::main) {	498	if ($Coro::current == $Coro::main) {
		499	my $time = EV::time;
		500
312	# this is the main coro, too bad, we have to block	501	# this is the main coro, too bad, we have to block
313	# till the operation succeeds, freezing the server :/	502	# till the operation succeeds, freezing the server :/
314		503
315	# TODO: use suspend/resume instead	504	LOG llevError, Carp::longmess "sync job";#d#
316	# (but this is cancel-safe)	505
317	my $freeze_guard = freeze_mainloop;	506	my $freeze_guard = freeze_mainloop;
318		507
319	my $busy = 1;	508	my $busy = 1;
320	my @res;	509	my @res;
321		510
322	(async {	511	(async {
		512	$Coro::current->desc ("sync job coro");
323	@res = eval { $job->() };	513	@res = eval { $job->() };
324	warn $@ if $@;	514	warn $@ if $@;
325	undef $busy;	515	undef $busy;
326	})->prio (Coro::PRIO_MAX);	516	})->prio (Coro::PRIO_MAX);
327		517
328	while ($busy) {	518	while ($busy) {
329	Coro::cede or Event::one_event;	519	if (Coro::nready) {
		520	Coro::cede_notself;
		521	} else {
		522	EV::loop EV::LOOP_ONESHOT;
330	}	523	}
		524	}
		525
		526	my $time = EV::time - $time;
		527
		528	$TICK_START += $time; # do not account sync jobs to server load
331		529
332	wantarray ? @res : $res[0]	530	wantarray ? @res : $res[0]
333	} else {	531	} else {
334	# we are in another coroutine, how wonderful, everything just works	532	# we are in another coroutine, how wonderful, everything just works
335		533
…		…
355	$EXT_CORO{$coro+0} = $coro;	553	$EXT_CORO{$coro+0} = $coro;
356		554
357	$coro	555	$coro
358	}	556	}
359		557
360	sub write_runtime {	558	=item fork_call { }, $args
361	$TICK_WATCHER->is_active or cf::cleanup "mainloop frozen but runtime active", 1;
362		559
363	my $runtime = cf::localdir . "/runtime";	560	Executes the given code block with the given arguments in a seperate
		561	process, returning the results. Everything must be serialisable with
		562	Coro::Storable. May, of course, block. Note that the executed sub may
		563	never block itself or use any form of event handling.
364		564
365	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	565	=cut
366	or return;
367		566
368	my $value = $cf::RUNTIME + 90 + 10;	567	sub fork_call(&@) {
369	# 10 is the runtime save interval, for a monotonic clock	568	my ($cb, @args) = @_;
370	# 60 allows for the watchdog to kill the server.
371		569
372	(aio_write $fh, 0, (length $value), $value, 0) <= 0	570	# we seemingly have to make a local copy of the whole thing,
373	and return;	571	# otherwise perl prematurely frees the stuff :/
		572	# TODO: investigate and fix (likely this will be rather laborious)
374		573
375	# always fsync - this file is important	574	my @res = Coro::Util::fork_eval {
376	aio_fsync $fh	575	reset_signals;
377	and return;	576	&$cb
		577	}, @args;
378		578
379	close $fh	579	wantarray ? @res : $res[-1]
380	or return;	580	}
381		581
382	aio_rename "$runtime~", $runtime	582	=item $coin = coin_from_name $name
383	and return;
384		583
		584	=cut
		585
		586	our %coin_alias = (
		587	"silver" => "silvercoin",
		588	"silvercoin" => "silvercoin",
		589	"silvercoins" => "silvercoin",
		590	"gold" => "goldcoin",
		591	"goldcoin" => "goldcoin",
		592	"goldcoins" => "goldcoin",
		593	"platinum" => "platinacoin",
		594	"platinumcoin" => "platinacoin",
		595	"platinumcoins" => "platinacoin",
		596	"platina" => "platinacoin",
		597	"platinacoin" => "platinacoin",
		598	"platinacoins" => "platinacoin",
		599	"royalty" => "royalty",
		600	"royalties" => "royalty",
		601	);
		602
		603	sub coin_from_name($) {
		604	$coin_alias{$_[0]}
		605	? cf::arch::find $coin_alias{$_[0]}
		606	: undef
		607	}
		608
		609	=item $value = cf::db_get $family => $key
		610
		611	Returns a single value from the environment database.
		612
		613	=item cf::db_put $family => $key => $value
		614
		615	Stores the given C<$value> in the family. It can currently store binary
		616	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		617
		618	=item $db = cf::db_table "name"
		619
		620	Create and/or open a new database table. The string must not be "db" and must be unique
		621	within each server.
		622
		623	=cut
		624
		625	sub db_table($) {
		626	my ($name) = @_;
		627	my $db = BDB::db_create $DB_ENV;
		628
		629	eval {
		630	$db->set_flags (BDB::CHKSUM);
		631
		632	utf8::encode $name;
		633	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		634	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		635	cf::cleanup "db_open(db): $!" if $!;
		636	};
		637	cf::cleanup "db_open(db): $@" if $@;
		638
		639	$db
		640	}
		641
		642	our $DB;
		643
		644	sub db_init {
		645	cf::sync_job {
		646	$DB ||= db_table "db";
		647	};
		648	}
		649
		650	sub db_get($$) {
		651	my $key = "$_[0]/$_[1]";
		652
		653	cf::sync_job {
		654	BDB::db_get $DB, undef, $key, my $data;
		655
		656	$! ? ()
		657	: $data
385	1	658	}
		659	}
		660
		661	sub db_put($$$) {
		662	BDB::dbreq_pri 4;
		663	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		664	}
		665
		666	=item cf::cache $id => [$paths...], $processversion => $process
		667
		668	Generic caching function that returns the value of the resource $id,
		669	caching and regenerating as required.
		670
		671	This function can block.
		672
		673	=cut
		674
		675	sub cache {
		676	my ($id, $src, $processversion, $process) = @_;
		677
		678	my $meta =
		679	join "\x00",
		680	$processversion,
		681	map {
		682	aio_stat $_
		683	and Carp::croak "$_: $!";
		684
		685	($_, (stat _)[7,9])
		686	} @$src;
		687
		688	my $dbmeta = db_get cache => "$id/meta";
		689	if ($dbmeta ne $meta) {
		690	# changed, we may need to process
		691
		692	my @data;
		693	my $md5;
		694
		695	for (0 .. $#$src) {
		696	0 <= aio_load $src->[$_], $data[$_]
		697	or Carp::croak "$src->[$_]: $!";
		698	}
		699
		700	# if processing is expensive, check
		701	# checksum first
		702	if (1) {
		703	$md5 =
		704	join "\x00",
		705	$processversion,
		706	map {
		707	cf::cede_to_tick;
		708	($src->[$_], Digest::MD5::md5_hex $data[$_])
		709	} 0.. $#$src;
		710
		711
		712	my $dbmd5 = db_get cache => "$id/md5";
		713	if ($dbmd5 eq $md5) {
		714	db_put cache => "$id/meta", $meta;
		715
		716	return db_get cache => "$id/data";
		717	}
		718	}
		719
		720	my $t1 = Time::HiRes::time;
		721	my $data = $process->(\@data);
		722	my $t2 = Time::HiRes::time;
		723
		724	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		725
		726	db_put cache => "$id/data", $data;
		727	db_put cache => "$id/md5" , $md5;
		728	db_put cache => "$id/meta", $meta;
		729
		730	return $data;
		731	}
		732
		733	db_get cache => "$id/data"
		734	}
		735
		736	=item cf::datalog type => key => value, ...
		737
		738	Log a datalog packet of the given type with the given key-value pairs.
		739
		740	=cut
		741
		742	sub datalog($@) {
		743	my ($type, %kv) = @_;
		744	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
386	}	745	}
387		746
388	=back	747	=back
389		748
390	=cut	749	=cut
391		750
392	#############################################################################	751	#############################################################################
393		752
394	=head2 ATTACHABLE OBJECTS	753	=head2 ATTACHABLE OBJECTS
395		754
396	Many objects in crossfire are so-called attachable objects. That means you can	755	Many objects in deliantra are so-called attachable objects. That means you can
397	attach callbacks/event handlers (a collection of which is called an "attachment")	756	attach callbacks/event handlers (a collection of which is called an "attachment")
398	to it. All such attachable objects support the following methods.	757	to it. All such attachable objects support the following methods.
399		758
400	In the following description, CLASS can be any of C<global>, C<object>	759	In the following description, CLASS can be any of C<global>, C<object>
401	C<player>, C<client> or C<map> (i.e. the attachable objects in	760	C<player>, C<client> or C<map> (i.e. the attachable objects in
402	crossfire+).	761	Deliantra).
403		762
404	=over 4	763	=over 4
405		764
406	=item $attachable->attach ($attachment, key => $value...)	765	=item $attachable->attach ($attachment, key => $value...)
407		766
…		…
451	=item cf::CLASS::attachment $name, ...	810	=item cf::CLASS::attachment $name, ...
452		811
453	Register an attachment by C<$name> through which attachable objects of the	812	Register an attachment by C<$name> through which attachable objects of the
454	given CLASS can refer to this attachment.	813	given CLASS can refer to this attachment.
455		814
456	Some classes such as crossfire maps and objects can specify attachments	815	Some classes such as deliantra maps and objects can specify attachments
457	that are attached at load/instantiate time, thus the need for a name.	816	that are attached at load/instantiate time, thus the need for a name.
458		817
459	These calls expect any number of the following handler/hook descriptions:	818	These calls expect any number of the following handler/hook descriptions:
460		819
461	=over 4	820	=over 4
…		…
570	$registry = $CB_TYPE[$object_type] ||= [];	929	$registry = $CB_TYPE[$object_type] ||= [];
571		930
572	} elsif ($type eq "subtype") {	931	} elsif ($type eq "subtype") {
573	defined $object_type or Carp::croak "subtype specified without type";	932	defined $object_type or Carp::croak "subtype specified without type";
574	my $object_subtype = shift @arg;	933	my $object_subtype = shift @arg;
575	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	934	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
576		935
577	} elsif ($type eq "package") {	936	} elsif ($type eq "package") {
578	my $pkg = shift @arg;	937	my $pkg = shift @arg;
579		938
580	while (my ($name, $id) = each %cb_id) {	939	while (my ($name, $id) = each %cb_id) {
…		…
609	_attach $registry, $klass, @attach;	968	_attach $registry, $klass, @attach;
610	}	969	}
611		970
612	$obj->{$name} = \%arg;	971	$obj->{$name} = \%arg;
613	} else {	972	} else {
614	warn "object uses attachment '$name' that is not available, postponing.\n";	973	warn "object uses attachment '$name' which is not available, postponing.\n";
615	}	974	}
616		975
617	$obj->{_attachment}{$name} = undef;	976	$obj->{_attachment}{$name} = undef;
618	}	977	}
619		978
…		…
621	if (ref $_[0]) {	980	if (ref $_[0]) {
622	_object_attach @_;	981	_object_attach @_;
623	} else {	982	} else {
624	_attach shift->_attach_registry, @_;	983	_attach shift->_attach_registry, @_;
625	}	984	}
		985	_recalc_want;
626	};	986	};
627		987
628	# all those should be optimised	988	# all those should be optimised
629	sub cf::attachable::detach {	989	sub cf::attachable::detach {
630	my ($obj, $name) = @_;	990	my ($obj, $name) = @_;
…		…
633	delete $obj->{_attachment}{$name};	993	delete $obj->{_attachment}{$name};
634	reattach ($obj);	994	reattach ($obj);
635	} else {	995	} else {
636	Carp::croak "cannot, currently, detach class attachments";	996	Carp::croak "cannot, currently, detach class attachments";
637	}	997	}
		998	_recalc_want;
638	};	999	};
639		1000
640	sub cf::attachable::attached {	1001	sub cf::attachable::attached {
641	my ($obj, $name) = @_;	1002	my ($obj, $name) = @_;
642		1003
…		…
657	";	1018	";
658	die if $@;	1019	die if $@;
659	}	1020	}
660		1021
661	our $override;	1022	our $override;
662	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1023	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
663		1024
664	sub override {	1025	sub override {
665	$override = 1;	1026	$override = 1;
666	@invoke_results = ();	1027	@INVOKE_RESULTS = (@_);
667	}	1028	}
668		1029
669	sub do_invoke {	1030	sub do_invoke {
670	my $event = shift;	1031	my $event = shift;
671	my $callbacks = shift;	1032	my $callbacks = shift;
672		1033
673	@invoke_results = ();	1034	@INVOKE_RESULTS = ();
674		1035
675	local $override;	1036	local $override;
676		1037
677	for (@$callbacks) {	1038	for (@$callbacks) {
678	eval { &{$_->[1]} };	1039	eval { &{$_->[1]} };
…		…
687	}	1048	}
688		1049
689	0	1050	0
690	}	1051	}
691		1052
692	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1053	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
693		1054
694	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1055	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
695		1056
696	Generate an object-specific event with the given arguments.	1057	Generate an object-specific event with the given arguments.
697		1058
698	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1059	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
699	removed in future versions), and there is no public API to access override	1060	removed in future versions), and there is no public API to access override
700	results (if you must, access C<@cf::invoke_results> directly).	1061	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
701		1062
702	=back	1063	=back
703		1064
704	=cut	1065	=cut
705		1066
706	#############################################################################	1067	#############################################################################
707	# object support	1068	# object support
		1069
		1070	sub _object_equal($$);
		1071	sub _object_equal($$) {
		1072	my ($a, $b) = @_;
		1073
		1074	return 0 unless (ref $a) eq (ref $b);
		1075
		1076	if ("HASH" eq ref $a) {
		1077	my @ka = keys %$a;
		1078	my @kb = keys %$b;
		1079
		1080	return 0 if @ka != @kb;
		1081
		1082	for (0 .. $#ka) {
		1083	return 0 unless $ka[$_] eq $kb[$_];
		1084	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1085	}
		1086
		1087	} elsif ("ARRAY" eq ref $a) {
		1088
		1089	return 0 if @$a != @$b;
		1090
		1091	for (0 .. $#$a) {
		1092	return 0 unless _object_equal $a->[$_], $b->[$_];
		1093	}
		1094
		1095	} elsif ($a ne $b) {
		1096	return 0;
		1097	}
		1098
		1099	1
		1100	}
		1101
		1102	our $SLOW_MERGES;#d#
		1103	sub _can_merge {
		1104	my ($ob1, $ob2) = @_;
		1105
		1106	++$SLOW_MERGES;#d#
		1107
		1108	# we do the slow way here
		1109	return _object_equal $ob1, $ob2
		1110	}
708		1111
709	sub reattach {	1112	sub reattach {
710	# basically do the same as instantiate, without calling instantiate	1113	# basically do the same as instantiate, without calling instantiate
711	my ($obj) = @_;	1114	my ($obj) = @_;
712		1115
		1116	# no longer needed after getting rid of delete_package?
713	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1117	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
714		1118
715	my $registry = $obj->registry;	1119	my $registry = $obj->registry;
716		1120
717	@$registry = ();	1121	@$registry = ();
718		1122
…		…
733	cf::attachable->attach (	1137	cf::attachable->attach (
734	prio => -1000000,	1138	prio => -1000000,
735	on_instantiate => sub {	1139	on_instantiate => sub {
736	my ($obj, $data) = @_;	1140	my ($obj, $data) = @_;
737		1141
738	$data = from_json $data;	1142	$data = decode_json $data;
739		1143
740	for (@$data) {	1144	for (@$data) {
741	my ($name, $args) = @$_;	1145	my ($name, $args) = @$_;
742		1146
743	$obj->attach ($name, %{$args || {} });	1147	$obj->attach ($name, %{$args || {} });
…		…
759	sub object_freezer_save {	1163	sub object_freezer_save {
760	my ($filename, $rdata, $objs) = @_;	1164	my ($filename, $rdata, $objs) = @_;
761		1165
762	sync_job {	1166	sync_job {
763	if (length $$rdata) {	1167	if (length $$rdata) {
		1168	utf8::decode (my $decname = $filename);
764	warn sprintf "saving %s (%d,%d)\n",	1169	warn sprintf "saving %s (%d,%d)\n",
765	$filename, length $$rdata, scalar @$objs;	1170	$decname, length $$rdata, scalar @$objs;
766		1171
767	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1172	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
768	chmod SAVE_MODE, $fh;	1173	aio_chmod $fh, SAVE_MODE;
769	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1174	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
770	aio_fsync $fh if $cf::USE_FSYNC;	1175	aio_fsync $fh if $cf::USE_FSYNC;
771	close $fh;	1176	aio_close $fh;
772		1177
773	if (@$objs) {	1178	if (@$objs) {
774	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1179	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
775	chmod SAVE_MODE, $fh;	1180	aio_chmod $fh, SAVE_MODE;
776	my $data = Storable::nfreeze { version => 1, objs => $objs };	1181	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
777	aio_write $fh, 0, (length $data), $data, 0;	1182	aio_write $fh, 0, (length $data), $data, 0;
778	aio_fsync $fh if $cf::USE_FSYNC;	1183	aio_fsync $fh if $cf::USE_FSYNC;
779	close $fh;	1184	aio_close $fh;
780	aio_rename "$filename.pst~", "$filename.pst";	1185	aio_rename "$filename.pst~", "$filename.pst";
781	}	1186	}
782	} else {	1187	} else {
783	aio_unlink "$filename.pst";	1188	aio_unlink "$filename.pst";
784	}	1189	}
…		…
789	}	1194	}
790	} else {	1195	} else {
791	aio_unlink $filename;	1196	aio_unlink $filename;
792	aio_unlink "$filename.pst";	1197	aio_unlink "$filename.pst";
793	}	1198	}
794
795	#d##TODO# nuke non .map-files if exist
796	if ($filename =~ s/\.map$//) {
797	aio_unlink $filename;
798	aio_unlink "$filename.pst";
799	}
800	}	1199	};
801	}	1200	}
802		1201
803	sub object_freezer_as_string {	1202	sub object_freezer_as_string {
804	my ($rdata, $objs) = @_;	1203	my ($rdata, $objs) = @_;
805		1204
…		…
810		1209
811	sub object_thawer_load {	1210	sub object_thawer_load {
812	my ($filename) = @_;	1211	my ($filename) = @_;
813		1212
814	my ($data, $av);	1213	my ($data, $av);
815
816	#d#TODO remove .map if file does not exist
817	aio_stat $filename and $filename =~ s/\.map$//;
818		1214
819	(aio_load $filename, $data) >= 0	1215	(aio_load $filename, $data) >= 0
820	or return;	1216	or return;
821		1217
822	unless (aio_stat "$filename.pst") {	1218	unless (aio_stat "$filename.pst") {
823	(aio_load "$filename.pst", $av) >= 0	1219	(aio_load "$filename.pst", $av) >= 0
824	or return;	1220	or return;
		1221
825	$av = eval { (Storable::thaw $av)->{objs} };	1222	my $st = eval { Coro::Storable::thaw $av };
		1223	$av = $st->{objs};
826	}	1224	}
827		1225
		1226	utf8::decode (my $decname = $filename);
828	warn sprintf "loading %s (%d)\n",	1227	warn sprintf "loading %s (%d,%d)\n",
829	$filename, length $data, scalar @{$av || []};#d#	1228	$decname, length $data, scalar @{$av || []};
		1229
830	return ($data, $av);	1230	($data, $av)
831	}	1231	}
		1232
		1233	=head2 COMMAND CALLBACKS
		1234
		1235	=over 4
		1236
		1237	=cut
832		1238
833	#############################################################################	1239	#############################################################################
834	# command handling &c	1240	# command handling &c
835		1241
836	=item cf::register_command $name => \&callback($ob,$args);	1242	=item cf::register_command $name => \&callback($ob,$args);
…		…
849	push @{ $COMMAND{$name} }, [$caller, $cb];	1255	push @{ $COMMAND{$name} }, [$caller, $cb];
850	}	1256	}
851		1257
852	=item cf::register_extcmd $name => \&callback($pl,$packet);	1258	=item cf::register_extcmd $name => \&callback($pl,$packet);
853		1259
854	Register a callbackf ro execution when the client sends an extcmd packet.	1260	Register a callback for execution when the client sends an (synchronous)
		1261	extcmd packet. Ext commands will be processed in the order they are
		1262	received by the server, like other user commands. The first argument is
		1263	the logged-in player. Ext commands can only be processed after a player
		1264	has logged in successfully.
855		1265
856	If the callback returns something, it is sent back as if reply was being	1266	If the callback returns something, it is sent back as if reply was being
857	called.	1267	called.
858		1268
		1269	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1270
		1271	Register a callback for execution when the client sends an (asynchronous)
		1272	exticmd packet. Exti commands are processed by the server as soon as they
		1273	are received, i.e. out of order w.r.t. other commands. The first argument
		1274	is a client socket. Exti commands can be received anytime, even before
		1275	log-in.
		1276
		1277	If the callback returns something, it is sent back as if reply was being
		1278	called.
		1279
859	=cut	1280	=cut
860		1281
861	sub register_extcmd {	1282	sub register_extcmd {
862	my ($name, $cb) = @_;	1283	my ($name, $cb) = @_;
863		1284
864	$EXTCMD{$name} = $cb;	1285	$EXTCMD{$name} = $cb;
		1286	}
		1287
		1288	sub register_exticmd {
		1289	my ($name, $cb) = @_;
		1290
		1291	$EXTICMD{$name} = $cb;
865	}	1292	}
866		1293
867	cf::player->attach (	1294	cf::player->attach (
868	on_command => sub {	1295	on_command => sub {
869	my ($pl, $name, $params) = @_;	1296	my ($pl, $name, $params) = @_;
…		…
878	cf::override;	1305	cf::override;
879	},	1306	},
880	on_extcmd => sub {	1307	on_extcmd => sub {
881	my ($pl, $buf) = @_;	1308	my ($pl, $buf) = @_;
882		1309
883	my $msg = eval { from_json $buf };	1310	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
884		1311
885	if (ref $msg) {	1312	if (ref $msg) {
		1313	my ($type, $reply, @payload) =
		1314	"ARRAY" eq ref $msg
		1315	? @$msg
		1316	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1317
		1318	my @reply;
		1319
886	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1320	if (my $cb = $EXTCMD{$type}) {
887	if (my %reply = $cb->($pl, $msg)) {	1321	@reply = $cb->($pl, @payload);
888	$pl->ext_reply ($msg->{msgid}, %reply);
889	}
890	}	1322	}
		1323
		1324	$pl->ext_reply ($reply, @reply)
		1325	if $reply;
		1326
891	} else {	1327	} else {
892	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1328	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
893	}	1329	}
894		1330
895	cf::override;	1331	cf::override;
896	},	1332	},
897	);	1333	);
898		1334
899	sub load_extension {
900	my ($path) = @_;
901
902	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
903	my $base = $1;
904	my $pkg = $1;
905	$pkg =~ s/[^[:word:]]/_/g;
906	$pkg = "ext::$pkg";
907
908	warn "... loading '$path' into '$pkg'\n";
909
910	open my $fh, "<:utf8", $path
911	or die "$path: $!";
912
913	my $source =
914	"package $pkg; use strict; use utf8;\n"
915	. "#line 1 \"$path\"\n{\n"
916	. (do { local $/; <$fh> })
917	. "\n};\n1";
918
919	unless (eval $source) {
920	my $msg = $@ ? "$path: $@\n"
921	: "extension disabled.\n";
922	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
923	warn $@;
924	warn "mandatory extension failed to load, exiting.\n";
925	exit 1;
926	}
927	die $@;
928	}
929
930	push @EXTS, $pkg;
931	}
932
933	sub load_extensions {	1335	sub load_extensions {
		1336	cf::sync_job {
		1337	my %todo;
		1338
934	for my $ext (<$LIBDIR/*.ext>) {	1339	for my $path (<$LIBDIR/*.ext>) {
935	next unless -r $ext;	1340	next unless -r $path;
936	eval {	1341
937	load_extension $ext;	1342	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1343	my $base = $1;
		1344	my $pkg = $1;
		1345	$pkg =~ s/[^[:word:]]/_/g;
		1346	$pkg = "ext::$pkg";
		1347
		1348	open my $fh, "<:utf8", $path
		1349	or die "$path: $!";
		1350
		1351	my $source = do { local $/; <$fh> };
		1352
		1353	my %ext = (
		1354	path => $path,
		1355	base => $base,
		1356	pkg => $pkg,
		1357	);
		1358
		1359	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1360	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1361
		1362	$ext{source} =
		1363	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1364	. "#line 1 \"$path\"\n{\n"
		1365	. $source
		1366	. "\n};\n1";
		1367
		1368	$todo{$base} = \%ext;
		1369	}
		1370
		1371	my %done;
		1372	while (%todo) {
		1373	my $progress;
		1374
		1375	while (my ($k, $v) = each %todo) {
		1376	for (split /,\s*/, $v->{meta}{depends}) {
		1377	goto skip
		1378	unless exists $done{$_};
		1379	}
		1380
		1381	warn "... loading '$k' into '$v->{pkg}'\n";
		1382
		1383	unless (eval $v->{source}) {
		1384	my $msg = $@ ? "$v->{path}: $@\n"
		1385	: "$v->{base}: extension inactive.\n";
		1386
		1387	if (exists $v->{meta}{mandatory}) {
		1388	warn $msg;
		1389	cf::cleanup "mandatory extension failed to load, exiting.";
		1390	}
		1391
		1392	warn $msg;
		1393	}
		1394
		1395	$done{$k} = delete $todo{$k};
		1396	push @EXTS, $v->{pkg};
		1397	$progress = 1;
938	1	1398	}
939	} or warn "$ext not loaded: $@";	1399
		1400	skip:
		1401	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1402	unless $progress;
		1403	}
940	}	1404	};
941	}	1405	}
942		1406
943	#############################################################################	1407	#############################################################################
944		1408
		1409	=back
		1410
945	=head2 CORE EXTENSIONS	1411	=head2 CORE EXTENSIONS
946		1412
947	Functions and methods that extend core crossfire objects.	1413	Functions and methods that extend core deliantra objects.
948		1414
949	=cut	1415	=cut
950		1416
951	package cf::player;	1417	package cf::player;
952		1418
…		…
954		1420
955	=head3 cf::player	1421	=head3 cf::player
956		1422
957	=over 4	1423	=over 4
958		1424
		1425	=item cf::player::num_playing
		1426
		1427	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1428
		1429	=cut
		1430
		1431	sub num_playing {
		1432	scalar grep
		1433	$_->ob->map
		1434	&& !$_->hidden
		1435	&& !$_->ob->flag (cf::FLAG_WIZ),
		1436	cf::player::list
		1437	}
		1438
959	=item cf::player::find $login	1439	=item cf::player::find $login
960		1440
961	Returns the given player object, loading it if necessary (might block).	1441	Returns the given player object, loading it if necessary (might block).
962		1442
963	=cut	1443	=cut
964		1444
965	sub playerdir($) {	1445	sub playerdir($) {
966	cf::localdir	1446	"$PLAYERDIR/"
967	. "/"
968	. cf::playerdir
969	. "/"
970	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1447	. (ref $_[0] ? $_[0]->ob->name : $_[0])
971	}	1448	}
972		1449
973	sub path($) {	1450	sub path($) {
974	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1451	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
975		1452
976	(playerdir $login) . "/$login.pl"	1453	(playerdir $login) . "/playerdata"
977	}	1454	}
978		1455
979	sub find_active($) {	1456	sub find_active($) {
980	$cf::PLAYER{$_[0]}	1457	$cf::PLAYER{$_[0]}
981	and $cf::PLAYER{$_[0]}->active	1458	and $cf::PLAYER{$_[0]}->active
…		…
984		1461
985	sub exists($) {	1462	sub exists($) {
986	my ($login) = @_;	1463	my ($login) = @_;
987		1464
988	$cf::PLAYER{$login}	1465	$cf::PLAYER{$login}
989	or cf::sync_job { !aio_stat path $login }	1466	or !aio_stat path $login
990	}	1467	}
991		1468
992	sub find($) {	1469	sub find($) {
993	return $cf::PLAYER{$_[0]} || do {	1470	return $cf::PLAYER{$_[0]} || do {
994	my $login = $_[0];	1471	my $login = $_[0];
995		1472
996	my $guard = cf::lock_acquire "user_find:$login";	1473	my $guard = cf::lock_acquire "user_find:$login";
997		1474
998	$cf::PLAYER{$_[0]} || do {	1475	$cf::PLAYER{$_[0]} || do {
999	my $pl = load_pl path $login	1476	# rename old playerfiles to new ones
		1477	#TODO: remove when no longer required
		1478	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1479	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1480	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1481	aio_unlink +(playerdir $login) . "/$login.pl";
		1482
		1483	my $f = new_from_file cf::object::thawer path $login
1000	or return;	1484	or return;
		1485
		1486	my $pl = cf::player::load_pl $f
		1487	or return;
		1488
		1489	local $cf::PLAYER_LOADING{$login} = $pl;
		1490	$f->resolve_delayed_derefs;
1001	$cf::PLAYER{$login} = $pl	1491	$cf::PLAYER{$login} = $pl
1002	}	1492	}
1003	}	1493	}
1004	}	1494	}
1005		1495
…		…
1014	return if $pl->{deny_save};	1504	return if $pl->{deny_save};
1015		1505
1016	aio_mkdir playerdir $pl, 0770;	1506	aio_mkdir playerdir $pl, 0770;
1017	$pl->{last_save} = $cf::RUNTIME;	1507	$pl->{last_save} = $cf::RUNTIME;
1018		1508
		1509	cf::get_slot 0.01;
		1510
1019	$pl->save_pl ($path);	1511	$pl->save_pl ($path);
1020	Coro::cede;	1512	cf::cede_to_tick;
1021	}	1513	}
1022		1514
1023	sub new($) {	1515	sub new($) {
1024	my ($login) = @_;	1516	my ($login) = @_;
1025		1517
…		…
1031	$cf::PLAYER{$login} = $self;	1523	$cf::PLAYER{$login} = $self;
1032		1524
1033	$self	1525	$self
1034	}	1526	}
1035		1527
		1528	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1529
		1530	=cut
		1531
		1532	sub send_msg {
		1533	my $ns = shift->ns
		1534	or return;
		1535	$ns->send_msg (@_);
		1536	}
		1537
1036	=item $pl->quit_character	1538	=item $pl->quit_character
1037		1539
1038	Nukes the player without looking back. If logged in, the connection will	1540	Nukes the player without looking back. If logged in, the connection will
1039	be destroyed. May block for a long time.	1541	be destroyed. May block for a long time.
1040		1542
1041	=cut	1543	=cut
1042		1544
1043	sub quit_character {	1545	sub quit_character {
1044	my ($pl) = @_;	1546	my ($pl) = @_;
1045		1547
		1548	my $name = $pl->ob->name;
		1549
1046	$pl->{deny_save} = 1;	1550	$pl->{deny_save} = 1;
1047	$pl->password ("*"); # this should lock out the player until we nuked the dir	1551	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1048		1552
1049	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1553	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1050	$pl->deactivate;	1554	$pl->deactivate;
		1555	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1556	$pl->ob->check_score;
1051	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1557	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1052	$pl->ns->destroy if $pl->ns;	1558	$pl->ns->destroy if $pl->ns;
1053		1559
1054	my $path = playerdir $pl;	1560	my $path = playerdir $pl;
1055	my $temp = "$path~$cf::RUNTIME~deleting~";	1561	my $temp = "$path~$cf::RUNTIME~deleting~";
1056	aio_rename $path, $temp;	1562	aio_rename $path, $temp;
1057	delete $cf::PLAYER{$pl->ob->name};	1563	delete $cf::PLAYER{$pl->ob->name};
1058	$pl->destroy;	1564	$pl->destroy;
		1565
		1566	my $prefix = qr<^~\Q$name\E/>;
		1567
		1568	# nuke player maps
		1569	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1570
1059	IO::AIO::aio_rmtree $temp;	1571	IO::AIO::aio_rmtree $temp;
		1572	}
		1573
		1574	=item $pl->kick
		1575
		1576	Kicks a player out of the game. This destroys the connection.
		1577
		1578	=cut
		1579
		1580	sub kick {
		1581	my ($pl, $kicker) = @_;
		1582
		1583	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1584	$pl->killer ("kicked");
		1585	$pl->ns->destroy;
1060	}	1586	}
1061		1587
1062	=item cf::player::list_logins	1588	=item cf::player::list_logins
1063		1589
1064	Returns am arrayref of all valid playernames in the system, can take a	1590	Returns am arrayref of all valid playernames in the system, can take a
1065	while and may block, so not sync_job-capable, ever.	1591	while and may block, so not sync_job-capable, ever.
1066		1592
1067	=cut	1593	=cut
1068		1594
1069	sub list_logins {	1595	sub list_logins {
1070	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1596	my $dirs = aio_readdir $PLAYERDIR
1071	or return [];	1597	or return [];
1072		1598
1073	my @logins;	1599	my @logins;
1074		1600
1075	for my $login (@$dirs) {	1601	for my $login (@$dirs) {
		1602	my $path = path $login;
		1603
		1604	# a .pst is a dead give-away for a valid player
		1605	# if no pst file found, open and chekc for blocked users
		1606	if (aio_stat "$path.pst") {
1076	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1607	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1077	aio_read $fh, 0, 512, my $buf, 0 or next;	1608	aio_read $fh, 0, 512, my $buf, 0 or next;
1078	$buf !~ /^password -------------$/m or next; # official not-valid tag	1609	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1610	}
1079		1611
1080	utf8::decode $login;	1612	utf8::decode $login;
1081	push @logins, $login;	1613	push @logins, $login;
1082	}	1614	}
1083		1615
…		…
1110	}	1642	}
1111		1643
1112	\@paths	1644	\@paths
1113	}	1645	}
1114		1646
		1647	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1648
		1649	Expand deliantra pod fragments into protocol xml.
		1650
1115	=item $player->ext_reply ($msgid, $msgtype, %msg)	1651	=item $player->ext_reply ($msgid, @msg)
1116		1652
1117	Sends an ext reply to the player.	1653	Sends an ext reply to the player.
1118		1654
1119	=cut	1655	=cut
1120		1656
1121	sub ext_reply($$$%) {	1657	sub ext_reply($$@) {
1122	my ($self, $id, %msg) = @_;	1658	my ($self, $id, @msg) = @_;
1123		1659
1124	$msg{msgid} = $id;	1660	$self->ns->ext_reply ($id, @msg)
1125
1126	$self->send ("ext " . cf::to_json \%msg);
1127	}	1661	}
1128		1662
1129	package cf;	1663	=item $player->ext_msg ($type, @msg)
		1664
		1665	Sends an ext event to the client.
		1666
		1667	=cut
		1668
		1669	sub ext_msg($$@) {
		1670	my ($self, $type, @msg) = @_;
		1671
		1672	$self->ns->ext_msg ($type, @msg);
		1673	}
		1674
		1675	=head3 cf::region
		1676
		1677	=over 4
		1678
		1679	=cut
		1680
		1681	package cf::region;
		1682
		1683	=item cf::region::find_by_path $path
		1684
		1685	Tries to decuce the likely region for a map knowing only its path.
		1686
		1687	=cut
		1688
		1689	sub find_by_path($) {
		1690	my ($path) = @_;
		1691
		1692	my ($match, $specificity);
		1693
		1694	for my $region (list) {
		1695	if ($region->{match} && $path =~ $region->{match}) {
		1696	($match, $specificity) = ($region, $region->specificity)
		1697	if $region->specificity > $specificity;
		1698	}
		1699	}
		1700
		1701	$match
		1702	}
1130		1703
1131	=back	1704	=back
1132
1133		1705
1134	=head3 cf::map	1706	=head3 cf::map
1135		1707
1136	=over 4	1708	=over 4
1137		1709
…		…
1149	our $MAX_RESET = 3600;	1721	our $MAX_RESET = 3600;
1150	our $DEFAULT_RESET = 3000;	1722	our $DEFAULT_RESET = 3000;
1151		1723
1152	sub generate_random_map {	1724	sub generate_random_map {
1153	my ($self, $rmp) = @_;	1725	my ($self, $rmp) = @_;
		1726
		1727	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1728
1154	# mit "rum" bekleckern, nicht	1729	# mit "rum" bekleckern, nicht
1155	$self->_create_random_map (	1730	$self->_create_random_map (
1156	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1731	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1157	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1732	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1158	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1733	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1192	my ($self, $merge) = @_;	1767	my ($self, $merge) = @_;
1193		1768
1194	# we have to keep some variables in memory intact	1769	# we have to keep some variables in memory intact
1195	local $self->{path};	1770	local $self->{path};
1196	local $self->{load_path};	1771	local $self->{load_path};
1197	local $self->{deny_save};
1198	local $self->{deny_reset};
1199		1772
1200	$self->SUPER::thawer_merge ($merge);	1773	$self->SUPER::thawer_merge ($merge);
1201	}	1774	}
1202		1775
1203	sub normalise {	1776	sub normalise {
…		…
1250	$self->init; # pass $1 etc.	1823	$self->init; # pass $1 etc.
1251	return $self;	1824	return $self;
1252	}	1825	}
1253	}	1826	}
1254		1827
1255	Carp::carp "unable to resolve path '$path' (base '$base').";	1828	Carp::cluck "unable to resolve path '$path' (base '$base').";
1256	()	1829	()
1257	}	1830	}
1258		1831
1259	sub init {	1832	sub init {
1260	my ($self) = @_;	1833	my ($self) = @_;
…		…
1275		1848
1276	# the original (read-only) location	1849	# the original (read-only) location
1277	sub load_path {	1850	sub load_path {
1278	my ($self) = @_;	1851	my ($self) = @_;
1279		1852
1280	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1853	"$MAPDIR/$self->{path}.map"
1281	}	1854	}
1282		1855
1283	# the temporary/swap location	1856	# the temporary/swap location
1284	sub save_path {	1857	sub save_path {
1285	my ($self) = @_;	1858	my ($self) = @_;
1286		1859
1287	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1860	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1288	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1861	"$TMPDIR/$path.map"
1289	}	1862	}
1290		1863
1291	# the unique path, undef == no special unique path	1864	# the unique path, undef == no special unique path
1292	sub uniq_path {	1865	sub uniq_path {
1293	my ($self) = @_;	1866	my ($self) = @_;
1294		1867
1295	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1868	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1296	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1869	"$UNIQUEDIR/$path"
1297	}	1870	}
1298		1871
1299	# and all this just because we cannot iterate over	1872	# and all this just because we cannot iterate over
1300	# all maps in C++...	1873	# all maps in C++...
1301	sub change_all_map_light {	1874	sub change_all_map_light {
…		…
1303		1876
1304	$_->change_map_light ($change)	1877	$_->change_map_light ($change)
1305	for grep $_->outdoor, values %cf::MAP;	1878	for grep $_->outdoor, values %cf::MAP;
1306	}	1879	}
1307		1880
		1881	sub decay_objects {
		1882	my ($self) = @_;
		1883
		1884	return if $self->{deny_reset};
		1885
		1886	$self->do_decay_objects;
		1887	}
		1888
1308	sub unlink_save {	1889	sub unlink_save {
1309	my ($self) = @_;	1890	my ($self) = @_;
1310		1891
1311	utf8::encode (my $save = $self->save_path);	1892	utf8::encode (my $save = $self->save_path);
1312	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1893	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1313	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1894	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1314
1315	#d#TODO remove .map and also nuke
1316	$save =~ s/\.map// or return;#d#
1317	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1318	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1319	}	1895	}
1320		1896
1321	sub load_header_from($) {	1897	sub load_header_from($) {
1322	my ($self, $path) = @_;	1898	my ($self, $path) = @_;
1323		1899
1324	utf8::encode $path;	1900	utf8::encode $path;
1325	#aio_open $path, O_RDONLY, 0	1901	my $f = new_from_file cf::object::thawer $path
1326	# or return;
1327
1328	$self->_load_header ($path)
1329	or return;	1902	or return;
		1903
		1904	$self->_load_header ($f)
		1905	or return;
		1906
		1907	local $MAP_LOADING{$self->{path}} = $self;
		1908	$f->resolve_delayed_derefs;
1330		1909
1331	$self->{load_path} = $path;	1910	$self->{load_path} = $path;
1332		1911
1333	1	1912	1
1334	}	1913	}
…		…
1373	$self->load_header_orig	1952	$self->load_header_orig
1374	or return;	1953	or return;
1375	$self->prepare_orig;	1954	$self->prepare_orig;
1376	}	1955	}
1377		1956
		1957	$self->{deny_reset} = 1
		1958	if $self->no_reset;
		1959
		1960	$self->default_region (cf::region::find_by_path $self->{path})
		1961	unless $self->default_region;
		1962
1378	1	1963	1
1379	}	1964	}
1380		1965
1381	sub find;	1966	sub find;
1382	sub find {	1967	sub find {
1383	my ($path, $origin) = @_;	1968	my ($path, $origin) = @_;
1384		1969
1385	$path = normalise $path, $origin && $origin->path;	1970	$path = normalise $path, $origin && $origin->path;
1386		1971
		1972	cf::lock_wait "map_data:$path";#d#remove
1387	cf::lock_wait "map_find:$path";	1973	cf::lock_wait "map_find:$path";
1388		1974
1389	$cf::MAP{$path} || do {	1975	$cf::MAP{$path} || do {
		1976	my $guard1 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1390	my $guard = cf::lock_acquire "map_find:$path";	1977	my $guard2 = cf::lock_acquire "map_find:$path";
		1978
1391	my $map = new_from_path cf::map $path	1979	my $map = new_from_path cf::map $path
1392	or return;	1980	or return;
1393		1981
1394	$map->{last_save} = $cf::RUNTIME;	1982	$map->{last_save} = $cf::RUNTIME;
1395		1983
1396	$map->load_header	1984	$map->load_header
1397	or return;	1985	or return;
1398		1986
1399	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1987	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1400	# doing this can freeze the server in a sync job, obviously	1988	# doing this can freeze the server in a sync job, obviously
1401	#$cf::WAIT_FOR_TICK->wait;	1989	#$cf::WAIT_FOR_TICK->wait;
		1990	undef $guard2;
		1991	undef $guard1;
1402	$map->reset;	1992	$map->reset;
1403	undef $guard;
1404	return find $path;	1993	return find $path;
1405	}	1994	}
1406		1995
1407	$cf::MAP{$path} = $map	1996	$cf::MAP{$path} = $map
1408	}	1997	}
…		…
1415	my ($self) = @_;	2004	my ($self) = @_;
1416		2005
1417	local $self->{deny_reset} = 1; # loading can take a long time	2006	local $self->{deny_reset} = 1; # loading can take a long time
1418		2007
1419	my $path = $self->{path};	2008	my $path = $self->{path};
		2009
		2010	{
1420	my $guard = cf::lock_acquire "map_load:$path";	2011	my $guard = cf::lock_acquire "map_data:$path";
1421		2012
		2013	return unless $self->valid;
1422	return if $self->in_memory != cf::MAP_SWAPPED;	2014	return unless $self->in_memory == cf::MAP_SWAPPED;
1423		2015
1424	$self->in_memory (cf::MAP_LOADING);	2016	$self->in_memory (cf::MAP_LOADING);
1425		2017
1426	$self->alloc;	2018	$self->alloc;
1427		2019
1428	$self->pre_load;	2020	$self->pre_load;
		2021	cf::cede_to_tick;
1429		2022
1430	$self->_load_objects ($self->{load_path}, 1)	2023	my $f = new_from_file cf::object::thawer $self->{load_path};
		2024	$f->skip_block;
		2025	$self->_load_objects ($f)
1431	or return;	2026	or return;
1432		2027
1433	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2028	$self->post_load_original
1434	if delete $self->{load_original};	2029	if delete $self->{load_original};
1435		2030
1436	if (my $uniq = $self->uniq_path) {	2031	if (my $uniq = $self->uniq_path) {
1437	utf8::encode $uniq;	2032	utf8::encode $uniq;
1438	if (aio_open $uniq, O_RDONLY, 0) {	2033	unless (aio_stat $uniq) {
		2034	if (my $f = new_from_file cf::object::thawer $uniq) {
1439	$self->clear_unique_items;	2035	$self->clear_unique_items;
1440	$self->_load_objects ($uniq, 0);	2036	$self->_load_objects ($f);
		2037	$f->resolve_delayed_derefs;
		2038	}
1441	}	2039	}
1442	}	2040	}
1443		2041
1444	Coro::cede;	2042	$f->resolve_delayed_derefs;
1445		2043
		2044	cf::cede_to_tick;
1446	# now do the right thing for maps	2045	# now do the right thing for maps
1447	$self->link_multipart_objects;	2046	$self->link_multipart_objects;
1448
1449	unless ($self->{deny_activate}) {
1450	$self->decay_objects;
1451	$self->fix_auto_apply;
1452	$self->update_buttons;
1453	Coro::cede;
1454	$self->set_darkness_map;
1455	$self->difficulty ($self->estimate_difficulty)	2047	$self->difficulty ($self->estimate_difficulty)
1456	unless $self->difficulty;	2048	unless $self->difficulty;
1457	Coro::cede;	2049	cf::cede_to_tick;
		2050
		2051	unless ($self->{deny_activate}) {
		2052	$self->decay_objects;
		2053	$self->fix_auto_apply;
		2054	$self->update_buttons;
		2055	cf::cede_to_tick;
		2056	$self->set_darkness_map;
		2057	cf::cede_to_tick;
1458	$self->activate;	2058	$self->activate;
		2059	}
		2060
		2061	$self->{last_save} = $cf::RUNTIME;
		2062	$self->last_access ($cf::RUNTIME);
		2063
		2064	$self->in_memory (cf::MAP_ACTIVE);
1459	}	2065	}
1460		2066
1461	$self->post_load;	2067	$self->post_load;
1462
1463	$self->in_memory (cf::MAP_IN_MEMORY);
1464	}	2068	}
1465		2069
1466	sub customise_for {	2070	sub customise_for {
1467	my ($self, $ob) = @_;	2071	my ($self, $ob) = @_;
1468		2072
1469	return find "~" . $ob->name . "/" . $self->{path}	2073	return find "~" . $ob->name . "/" . $self->{path}
1470	if $self->per_player;	2074	if $self->per_player;
1471		2075
		2076	# return find "?party/" . $ob->name . "/" . $self->{path}
		2077	# if $self->per_party;
		2078
1472	$self	2079	$self
1473	}	2080	}
1474		2081
1475	# find and load all maps in the 3x3 area around a map	2082	# find and load all maps in the 3x3 area around a map
1476	sub load_diag {	2083	sub load_neighbours {
1477	my ($map) = @_;	2084	my ($map) = @_;
1478		2085
1479	my @diag; # diagonal neighbours	2086	my @neigh; # diagonal neighbours
1480		2087
1481	for (0 .. 3) {	2088	for (0 .. 3) {
1482	my $neigh = $map->tile_path ($_)	2089	my $neigh = $map->tile_path ($_)
1483	or next;	2090	or next;
1484	$neigh = find $neigh, $map	2091	$neigh = find $neigh, $map
1485	or next;	2092	or next;
1486	$neigh->load;	2093	$neigh->load;
1487		2094
		2095	push @neigh,
1488	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2096	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1489	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2097	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1490	}	2098	}
1491		2099
1492	for (@diag) {	2100	for (grep defined $_->[0], @neigh) {
		2101	my ($path, $origin) = @$_;
1493	my $neigh = find @$_	2102	my $neigh = find $path, $origin
1494	or next;	2103	or next;
1495	$neigh->load;	2104	$neigh->load;
1496	}	2105	}
1497	}	2106	}
1498		2107
…		…
1503	}	2112	}
1504		2113
1505	sub do_load_sync {	2114	sub do_load_sync {
1506	my ($map) = @_;	2115	my ($map) = @_;
1507		2116
		2117	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2118	if $Coro::current == $Coro::main;
		2119
1508	cf::sync_job { $map->load };	2120	cf::sync_job { $map->load };
1509	}	2121	}
1510		2122
1511	our %MAP_PREFETCH;	2123	our %MAP_PREFETCH;
1512	our $MAP_PREFETCHER = undef;	2124	our $MAP_PREFETCHER = undef;
1513		2125
1514	sub find_async {	2126	sub find_async {
1515	my ($path, $origin) = @_;	2127	my ($path, $origin, $load) = @_;
1516		2128
1517	$path = normalise $path, $origin && $origin->{path};	2129	$path = normalise $path, $origin && $origin->{path};
1518		2130
1519	if (my $map = $cf::MAP{$path}) {	2131	if (my $map = $cf::MAP{$path}) {
1520	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2132	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1521	}	2133	}
1522		2134
1523	undef $MAP_PREFETCH{$path};	2135	$MAP_PREFETCH{$path} |= $load;
		2136
1524	$MAP_PREFETCHER ||= cf::async {	2137	$MAP_PREFETCHER ||= cf::async {
		2138	$Coro::current->{desc} = "map prefetcher";
		2139
1525	while (%MAP_PREFETCH) {	2140	while (%MAP_PREFETCH) {
1526	for my $path (keys %MAP_PREFETCH) {	2141	while (my ($k, $v) = each %MAP_PREFETCH) {
1527	my $map = find $path	2142	if (my $map = find $k) {
1528	or next;
1529	$map->load;	2143	$map->load if $v;
		2144	}
1530		2145
1531	delete $MAP_PREFETCH{$path};	2146	delete $MAP_PREFETCH{$k};
1532	}	2147	}
1533	}	2148	}
1534	undef $MAP_PREFETCHER;	2149	undef $MAP_PREFETCHER;
1535	};	2150	};
1536	$MAP_PREFETCHER->prio (6);	2151	$MAP_PREFETCHER->prio (6);
…		…
1539	}	2154	}
1540		2155
1541	sub save {	2156	sub save {
1542	my ($self) = @_;	2157	my ($self) = @_;
1543		2158
1544	my $lock = cf::lock_acquire "map_data:" . $self->path;	2159	my $lock = cf::lock_acquire "map_data:$self->{path}";
1545		2160
1546	$self->{last_save} = $cf::RUNTIME;	2161	$self->{last_save} = $cf::RUNTIME;
1547		2162
1548	return unless $self->dirty;	2163	return unless $self->dirty;
1549		2164
…		…
1555	return if $self->{deny_save};	2170	return if $self->{deny_save};
1556		2171
1557	local $self->{last_access} = $self->last_access;#d#	2172	local $self->{last_access} = $self->last_access;#d#
1558		2173
1559	cf::async {	2174	cf::async {
		2175	$Coro::current->{desc} = "map player save";
1560	$_->contr->save for $self->players;	2176	$_->contr->save for $self->players;
1561	};	2177	};
		2178
		2179	cf::get_slot 0.02;
1562		2180
1563	if ($uniq) {	2181	if ($uniq) {
1564	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2182	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1565	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2183	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1566	} else {	2184	} else {
…		…
1572	my ($self) = @_;	2190	my ($self) = @_;
1573		2191
1574	# save first because save cedes	2192	# save first because save cedes
1575	$self->save;	2193	$self->save;
1576		2194
1577	my $lock = cf::lock_acquire "map_data:" . $self->path;	2195	my $lock = cf::lock_acquire "map_data:$self->{path}";
1578		2196
1579	return if $self->players;	2197	return if $self->players;
1580	return if $self->in_memory != cf::MAP_IN_MEMORY;	2198	return if $self->in_memory != cf::MAP_ACTIVE;
1581	return if $self->{deny_save};	2199	return if $self->{deny_save};
1582		2200
		2201	$self->in_memory (cf::MAP_SWAPPED);
		2202
		2203	$self->deactivate;
		2204	$_->clear_links_to ($self) for values %cf::MAP;
1583	$self->clear;	2205	$self->clear;
1584	$self->in_memory (cf::MAP_SWAPPED);
1585	}	2206	}
1586		2207
1587	sub reset_at {	2208	sub reset_at {
1588	my ($self) = @_;	2209	my ($self) = @_;
1589		2210
1590	# TODO: safety, remove and allow resettable per-player maps	2211	# TODO: safety, remove and allow resettable per-player maps
1591	return 1e99 if $self->isa ("ext::map_per_player");#d#
1592	return 1e99 if $self->{deny_reset};	2212	return 1e99 if $self->{deny_reset};
1593		2213
1594	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2214	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1595	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2215	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1596		2216
…		…
1607	my ($self) = @_;	2227	my ($self) = @_;
1608		2228
1609	my $lock = cf::lock_acquire "map_data:$self->{path}";	2229	my $lock = cf::lock_acquire "map_data:$self->{path}";
1610		2230
1611	return if $self->players;	2231	return if $self->players;
1612	return if $self->isa ("ext::map_per_player");#d#
1613		2232
1614	warn "resetting map ", $self->path;#d#	2233	warn "resetting map ", $self->path;
1615		2234
1616	$self->in_memory (cf::MAP_SWAPPED);	2235	$self->in_memory (cf::MAP_SWAPPED);
1617		2236
1618	# need to save uniques path	2237	# need to save uniques path
1619	unless ($self->{deny_save}) {	2238	unless ($self->{deny_save}) {
…		…
1623	if $uniq;	2242	if $uniq;
1624	}	2243	}
1625		2244
1626	delete $cf::MAP{$self->path};	2245	delete $cf::MAP{$self->path};
1627		2246
		2247	$self->deactivate;
		2248	$_->clear_links_to ($self) for values %cf::MAP;
1628	$self->clear;	2249	$self->clear;
1629
1630	$_->clear_links_to ($self) for values %cf::MAP;
1631		2250
1632	$self->unlink_save;	2251	$self->unlink_save;
1633	$self->destroy;	2252	$self->destroy;
1634	}	2253	}
1635		2254
1636	my $nuke_counter = "aaaa";	2255	my $nuke_counter = "aaaa";
1637		2256
1638	sub nuke {	2257	sub nuke {
1639	my ($self) = @_;	2258	my ($self) = @_;
1640		2259
		2260	{
		2261	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2262
1641	delete $cf::MAP{$self->path};	2263	delete $cf::MAP{$self->path};
1642		2264
1643	$self->unlink_save;	2265	$self->unlink_save;
1644		2266
1645	bless $self, "cf::map";	2267	bless $self, "cf::map";
1646	delete $self->{deny_reset};	2268	delete $self->{deny_reset};
1647	$self->{deny_save} = 1;	2269	$self->{deny_save} = 1;
1648	$self->reset_timeout (1);	2270	$self->reset_timeout (1);
1649	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2271	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1650		2272
1651	$cf::MAP{$self->path} = $self;	2273	$cf::MAP{$self->path} = $self;
		2274	}
1652		2275
1653	$self->reset; # polite request, might not happen	2276	$self->reset; # polite request, might not happen
		2277	}
		2278
		2279	=item $maps = cf::map::tmp_maps
		2280
		2281	Returns an arrayref with all map paths of currently instantiated and saved
		2282	maps. May block.
		2283
		2284	=cut
		2285
		2286	sub tmp_maps() {
		2287	[
		2288	map {
		2289	utf8::decode $_;
		2290	/\.map$/
		2291	? normalise $_
		2292	: ()
		2293	} @{ aio_readdir $TMPDIR or [] }
		2294	]
		2295	}
		2296
		2297	=item $maps = cf::map::random_maps
		2298
		2299	Returns an arrayref with all map paths of currently instantiated and saved
		2300	random maps. May block.
		2301
		2302	=cut
		2303
		2304	sub random_maps() {
		2305	[
		2306	map {
		2307	utf8::decode $_;
		2308	/\.map$/
		2309	? normalise "?random/$_"
		2310	: ()
		2311	} @{ aio_readdir $RANDOMDIR or [] }
		2312	]
1654	}	2313	}
1655		2314
1656	=item cf::map::unique_maps	2315	=item cf::map::unique_maps
1657		2316
1658	Returns an arrayref of paths of all shared maps that have	2317	Returns an arrayref of paths of all shared maps that have
1659	instantiated unique items. May block.	2318	instantiated unique items. May block.
1660		2319
1661	=cut	2320	=cut
1662		2321
1663	sub unique_maps() {	2322	sub unique_maps() {
1664	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2323	[
1665	or return;	2324	map {
1666
1667	my @paths;
1668
1669	for (@$files) {
1670	utf8::decode $_;	2325	utf8::decode $_;
1671	next if /\.pst$/;	2326	s/\.map$//; # TODO future compatibility hack
1672	next unless /^$PATH_SEP/o;	2327	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1673		2328	? ()
1674	push @paths, cf::map::normalise $_;	2329	: normalise $_
		2330	} @{ aio_readdir $UNIQUEDIR or [] }
1675	}	2331	]
1676
1677	\@paths
1678	}	2332	}
1679
1680	package cf;
1681		2333
1682	=back	2334	=back
1683		2335
1684	=head3 cf::object	2336	=head3 cf::object
1685		2337
…		…
1689		2341
1690	=over 4	2342	=over 4
1691		2343
1692	=item $ob->inv_recursive	2344	=item $ob->inv_recursive
1693		2345
1694	Returns the inventory of the object _and_ their inventories, recursively.	2346	Returns the inventory of the object I<and> their inventories, recursively,
		2347	but I<not> the object itself.
1695		2348
1696	=cut	2349	=cut
1697		2350
1698	sub inv_recursive_;	2351	sub inv_recursive_;
1699	sub inv_recursive_ {	2352	sub inv_recursive_ {
…		…
1702		2355
1703	sub inv_recursive {	2356	sub inv_recursive {
1704	inv_recursive_ inv $_[0]	2357	inv_recursive_ inv $_[0]
1705	}	2358	}
1706		2359
		2360	=item $ref = $ob->ref
		2361
		2362	Creates and returns a persistent reference to an object that can be stored as a string.
		2363
		2364	=item $ob = cf::object::deref ($refstring)
		2365
		2366	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2367	even if the object actually exists. May block.
		2368
		2369	=cut
		2370
		2371	sub deref {
		2372	my ($ref) = @_;
		2373
		2374	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2375	my ($uuid, $name) = ($1, $2);
		2376	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2377	or return;
		2378	$pl->ob->uuid eq $uuid
		2379	or return;
		2380
		2381	$pl->ob
		2382	} else {
		2383	warn "$ref: cannot resolve object reference\n";
		2384	undef
		2385	}
		2386	}
		2387
1707	package cf;	2388	package cf;
1708		2389
1709	=back	2390	=back
1710		2391
1711	=head3 cf::object::player	2392	=head3 cf::object::player
…		…
1717	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2398	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1718	can be C<undef>. Does the right thing when the player is currently in a	2399	can be C<undef>. Does the right thing when the player is currently in a
1719	dialogue with the given NPC character.	2400	dialogue with the given NPC character.
1720		2401
1721	=cut	2402	=cut
		2403
		2404	our $SAY_CHANNEL = {
		2405	id => "say",
		2406	title => "Map",
		2407	reply => "say ",
		2408	tooltip => "Things said to and replied from npcs near you and other players on the same map only.",
		2409	};
		2410
		2411	our $CHAT_CHANNEL = {
		2412	id => "chat",
		2413	title => "Chat",
		2414	reply => "chat ",
		2415	tooltip => "Player chat and shouts, global to the server.",
		2416	};
1722		2417
1723	# rough implementation of a future "reply" method that works	2418	# rough implementation of a future "reply" method that works
1724	# with dialog boxes.	2419	# with dialog boxes.
1725	#TODO: the first argument must go, split into a $npc->reply_to ( method	2420	#TODO: the first argument must go, split into a $npc->reply_to ( method
1726	sub cf::object::player::reply($$$;$) {	2421	sub cf::object::player::reply($$$;$) {
…		…
1728		2423
1729	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2424	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1730		2425
1731	if ($self->{record_replies}) {	2426	if ($self->{record_replies}) {
1732	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2427	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2428
1733	} else {	2429	} else {
		2430	my $pl = $self->contr;
		2431
		2432	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2433	my $dialog = $pl->{npc_dialog};
		2434	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2435
		2436	} else {
1734	$msg = $npc->name . " says: $msg" if $npc;	2437	$msg = $npc->name . " says: $msg" if $npc;
1735	$self->message ($msg, $flags);	2438	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2439	}
1736	}	2440	}
		2441	}
		2442
		2443	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2444
		2445	=cut
		2446
		2447	sub cf::object::send_msg {
		2448	my $pl = shift->contr
		2449	or return;
		2450	$pl->send_msg (@_);
1737	}	2451	}
1738		2452
1739	=item $player_object->may ("access")	2453	=item $player_object->may ("access")
1740		2454
1741	Returns wether the given player is authorized to access resource "access"	2455	Returns wether the given player is authorized to access resource "access"
…		…
1754		2468
1755	=item $player_object->enter_link	2469	=item $player_object->enter_link
1756		2470
1757	Freezes the player and moves him/her to a special map (C<{link}>).	2471	Freezes the player and moves him/her to a special map (C<{link}>).
1758		2472
1759	The player should be reasonably safe there for short amounts of time. You	2473	The player should be reasonably safe there for short amounts of time (e.g.
1760	I<MUST> call C<leave_link> as soon as possible, though.	2474	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2475	though, as the palyer cannot control the character while it is on the link
		2476	map.
1761		2477
1762	Will never block.	2478	Will never block.
1763		2479
1764	=item $player_object->leave_link ($map, $x, $y)	2480	=item $player_object->leave_link ($map, $x, $y)
1765		2481
…		…
1788	$self->deactivate_recursive;	2504	$self->deactivate_recursive;
1789		2505
1790	return if UNIVERSAL::isa $self->map, "ext::map_link";	2506	return if UNIVERSAL::isa $self->map, "ext::map_link";
1791		2507
1792	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2508	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1793	if $self->map;	2509	if $self->map && $self->map->{path} ne "{link}";
1794		2510
1795	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2511	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1796	}	2512	}
1797		2513
1798	sub cf::object::player::leave_link {	2514	sub cf::object::player::leave_link {
1799	my ($self, $map, $x, $y) = @_;	2515	my ($self, $map, $x, $y) = @_;
		2516
		2517	return unless $self->contr->active;
1800		2518
1801	my $link_pos = delete $self->{_link_pos};	2519	my $link_pos = delete $self->{_link_pos};
1802		2520
1803	unless ($map) {	2521	unless ($map) {
1804	# restore original map position	2522	# restore original map position
…		…
1818	# use -1 or undef as default coordinates, not 0, 0	2536	# use -1 or undef as default coordinates, not 0, 0
1819	($x, $y) = ($map->enter_x, $map->enter_y)	2537	($x, $y) = ($map->enter_x, $map->enter_y)
1820	if $x <=0 && $y <= 0;	2538	if $x <=0 && $y <= 0;
1821		2539
1822	$map->load;	2540	$map->load;
1823	$map->load_diag;	2541	$map->load_neighbours;
1824		2542
1825	return unless $self->contr->active;	2543	return unless $self->contr->active;
		2544	$self->flag (cf::FLAG_DEBUG, 0);#d# temp
1826	$self->activate_recursive;	2545	$self->activate_recursive;
		2546
		2547	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1827	$self->enter_map ($map, $x, $y);	2548	$self->enter_map ($map, $x, $y);
1828	}	2549	}
1829		2550
1830	cf::player->attach (	2551	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1831	on_logout => sub {
1832	my ($pl) = @_;
1833		2552
1834	# abort map switching before logout	2553	Moves the player to the given map-path and coordinates by first freezing
1835	if ($pl->ob->{_link_pos}) {	2554	her, loading and preparing them map, calling the provided $check callback
1836	cf::sync_job {	2555	that has to return the map if sucecssful, and then unfreezes the player on
1837	$pl->ob->leave_link	2556	the new (success) or old (failed) map position. In either case, $done will
1838	};	2557	be called at the end of this process.
1839	}
1840	},
1841	on_login => sub {
1842	my ($pl) = @_;
1843		2558
1844	# try to abort aborted map switching on player login :)	2559	Note that $check will be called with a potentially non-loaded map, so if
1845	# should happen only on crashes	2560	it needs a loaded map it has to call C<< ->load >>.
1846	if ($pl->ob->{_link_pos}) {
1847	$pl->ob->enter_link;
1848	(async {
1849	# we need this sleep as the login has a concurrent enter_exit running
1850	# and this sleep increases chances of the player not ending up in scorn
1851	$pl->ob->reply (undef,
1852	"There was an internal problem at your last logout, "
1853	. "the server will try to bring you to your intended destination in a second.",
1854	cf::NDI_RED);
1855	Coro::Timer::sleep 1;
1856	$pl->ob->leave_link;
1857	})->prio (2);
1858	}
1859	},
1860	);
1861		2561
1862	=item $player_object->goto ($path, $x, $y)
1863
1864	=cut	2562	=cut
		2563
		2564	our $GOTOGEN;
1865		2565
1866	sub cf::object::player::goto {	2566	sub cf::object::player::goto {
1867	my ($self, $path, $x, $y) = @_;	2567	my ($self, $path, $x, $y, $check, $done) = @_;
		2568
		2569	# do generation counting so two concurrent goto's will be executed in-order
		2570	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1868		2571
1869	$self->enter_link;	2572	$self->enter_link;
1870		2573
1871	(async {	2574	(async {
		2575	$Coro::current->{desc} = "player::goto $path $x $y";
		2576
		2577	# *tag paths override both path and x|y
		2578	if ($path =~ /^\*(.*)$/) {
		2579	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2580	my $ob = $obs[rand @obs];
		2581
		2582	# see if we actually can go there
		2583	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2584	$ob = $obs[rand @obs];
		2585	} else {
		2586	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2587	}
		2588	# else put us there anyways for now #d#
		2589
		2590	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2591	} else {
		2592	($path, $x, $y) = (undef, undef, undef);
		2593	}
		2594	}
		2595
1872	my $map = eval {	2596	my $map = eval {
1873	my $map = cf::map::find $path;	2597	my $map = defined $path ? cf::map::find $path : undef;
		2598
		2599	if ($map) {
1874	$map = $map->customise_for ($self) if $map;	2600	$map = $map->customise_for ($self);
		2601	$map = $check->($map) if $check && $map;
		2602	} else {
		2603	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2604	}
		2605
1875	$map	2606	$map
		2607	};
		2608
		2609	if ($@) {
		2610	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2611	LOG llevError | logBacktrace, Carp::longmess $@;
1876	} or	2612	}
1877	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1878		2613
		2614	if ($gen == $self->{_goto_generation}) {
		2615	delete $self->{_goto_generation};
1879	$self->leave_link ($map, $x, $y);	2616	$self->leave_link ($map, $x, $y);
		2617	}
		2618
		2619	$done->() if $done;
1880	})->prio (1);	2620	})->prio (1);
1881	}	2621	}
1882		2622
1883	=item $player_object->enter_exit ($exit_object)	2623	=item $player_object->enter_exit ($exit_object)
1884		2624
…		…
1904	}	2644	}
1905		2645
1906	sub prepare_random_map {	2646	sub prepare_random_map {
1907	my ($exit) = @_;	2647	my ($exit) = @_;
1908		2648
1909	my $guard = cf::lock_acquire "exit_prepare:$exit";
1910
1911	# all this does is basically replace the /! path by	2649	# all this does is basically replace the /! path by
1912	# a new random map path (?random/...) with a seed	2650	# a new random map path (?random/...) with a seed
1913	# that depends on the exit object	2651	# that depends on the exit object
1914		2652
1915	my $rmp = parse_random_map_params $exit->msg;	2653	my $rmp = parse_random_map_params $exit->msg;
…		…
1917	if ($exit->map) {	2655	if ($exit->map) {
1918	$rmp->{region} = $exit->region->name;	2656	$rmp->{region} = $exit->region->name;
1919	$rmp->{origin_map} = $exit->map->path;	2657	$rmp->{origin_map} = $exit->map->path;
1920	$rmp->{origin_x} = $exit->x;	2658	$rmp->{origin_x} = $exit->x;
1921	$rmp->{origin_y} = $exit->y;	2659	$rmp->{origin_y} = $exit->y;
		2660
		2661	$exit->map->touch;
1922	}	2662	}
1923		2663
1924	$rmp->{random_seed} ||= $exit->random_seed;	2664	$rmp->{random_seed} ||= $exit->random_seed;
1925		2665
1926	my $data = cf::to_json $rmp;	2666	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1927	my $md5 = Digest::MD5::md5_hex $data;	2667	my $md5 = Digest::MD5::md5_hex $data;
1928	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2668	my $meta = "$RANDOMDIR/$md5.meta";
1929		2669
1930	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2670	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1931	aio_write $fh, 0, (length $data), $data, 0;	2671	aio_write $fh, 0, (length $data), $data, 0;
1932	undef $fh;	2672	undef $fh;
1933	aio_rename "$meta~", $meta;	2673	aio_rename "$meta~", $meta;
1934		2674
		2675	my $slaying = "?random/$md5";
		2676
		2677	if ($exit->valid) {
1935	$exit->slaying ("?random/$md5");	2678	$exit->slaying ("?random/$md5");
1936	$exit->msg (undef);	2679	$exit->msg (undef);
		2680	}
1937	}	2681	}
1938	}	2682	}
1939		2683
1940	sub cf::object::player::enter_exit {	2684	sub cf::object::player::enter_exit {
1941	my ($self, $exit) = @_;	2685	my ($self, $exit) = @_;
1942		2686
1943	return unless $self->type == cf::PLAYER;	2687	return unless $self->type == cf::PLAYER;
1944		2688
1945	if ($exit->slaying eq "/!") {
1946	#TODO: this should de-fi-ni-te-ly not be a sync-job
1947	cf::sync_job { prepare_random_map $exit };
1948	}
1949
1950	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1951	my $hp = $exit->stats->hp;
1952	my $sp = $exit->stats->sp;
1953
1954	$self->enter_link;	2689	$self->enter_link;
1955		2690
1956	(async {	2691	(async {
1957	$self->deactivate_recursive; # just to be sure	2692	$Coro::current->{desc} = "enter_exit";
		2693
1958	unless (eval {	2694	unless (eval {
		2695	$self->deactivate_recursive; # just to be sure
		2696
		2697	# random map handling
		2698	{
		2699	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2700
		2701	prepare_random_map $exit
		2702	if $exit->slaying eq "/!";
		2703	}
		2704
		2705	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2706	my $x = $exit->stats->hp;
		2707	my $y = $exit->stats->sp;
		2708
1959	$self->goto ($slaying, $hp, $sp);	2709	$self->goto ($map, $x, $y);
1960		2710
		2711	# if exit is damned, update players death & WoR home-position
		2712	$self->contr->savebed ($map, $x, $y)
		2713	if $exit->flag (cf::FLAG_DAMNED);
		2714
1961	1;	2715	1
1962	}) {	2716	}) {
1963	$self->message ("Something went wrong deep within the crossfire server. "	2717	$self->message ("Something went wrong deep within the deliantra server. "
1964	. "I'll try to bring you back to the map you were before. "	2718	. "I'll try to bring you back to the map you were before. "
1965	. "Please report this to the dungeon master!",	2719	. "Please report this to the dungeon master!",
1966	cf::NDI_UNIQUE | cf::NDI_RED);	2720	cf::NDI_UNIQUE | cf::NDI_RED);
1967		2721
1968	warn "ERROR in enter_exit: $@";	2722	warn "ERROR in enter_exit: $@";
1969	$self->leave_link;	2723	$self->leave_link;
1970	}	2724	}
1971	})->prio (1);	2725	})->prio (1);
…		…
1984		2738
1985	sub cf::client::send_drawinfo {	2739	sub cf::client::send_drawinfo {
1986	my ($self, $text, $flags) = @_;	2740	my ($self, $text, $flags) = @_;
1987		2741
1988	utf8::encode $text;	2742	utf8::encode $text;
1989	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2743	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1990	}	2744	}
1991		2745
		2746	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2747
		2748	Send a drawinfo or msg packet to the client, formatting the msg for the
		2749	client if neccessary. C<$type> should be a string identifying the type of
		2750	the message, with C<log> being the default. If C<$color> is negative, suppress
		2751	the message unless the client supports the msg packet.
		2752
		2753	=cut
		2754
		2755	# non-persistent channels (usually the info channel)
		2756	our %CHANNEL = (
		2757	"c/identify" => {
		2758	id => "infobox",
		2759	title => "Identify",
		2760	reply => undef,
		2761	tooltip => "Items recently identified",
		2762	},
		2763	"c/examine" => {
		2764	id => "infobox",
		2765	title => "Examine",
		2766	reply => undef,
		2767	tooltip => "Signs and other items you examined",
		2768	},
		2769	"c/book" => {
		2770	id => "infobox",
		2771	title => "Book",
		2772	reply => undef,
		2773	tooltip => "The contents of a note or book",
		2774	},
		2775	"c/lookat" => {
		2776	id => "infobox",
		2777	title => "Look",
		2778	reply => undef,
		2779	tooltip => "What you saw there",
		2780	},
		2781	"c/who" => {
		2782	id => "infobox",
		2783	title => "Players",
		2784	reply => undef,
		2785	tooltip => "Shows players who are currently online",
		2786	},
		2787	"c/body" => {
		2788	id => "infobox",
		2789	title => "Body Parts",
		2790	reply => undef,
		2791	tooltip => "Shows which body parts you posess and are available",
		2792	},
		2793	"c/skills" => {
		2794	id => "infobox",
		2795	title => "Skills",
		2796	reply => undef,
		2797	tooltip => "Shows your experience per skill and item power",
		2798	},
		2799	"c/uptime" => {
		2800	id => "infobox",
		2801	title => "Uptime",
		2802	reply => undef,
		2803	tooltip => "How long the server has been running since last restart",
		2804	},
		2805	"c/mapinfo" => {
		2806	id => "infobox",
		2807	title => "Map Info",
		2808	reply => undef,
		2809	tooltip => "Information related to the maps",
		2810	},
		2811	"c/party" => {
		2812	id => "party",
		2813	title => "Party",
		2814	reply => "gsay ",
		2815	tooltip => "Messages and chat related to your party",
		2816	},
		2817	);
		2818
		2819	sub cf::client::send_msg {
		2820	my ($self, $channel, $msg, $color, @extra) = @_;
		2821
		2822	$msg = $self->pl->expand_cfpod ($msg)
		2823	unless $color & cf::NDI_VERBATIM;
		2824
		2825	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2826
		2827	# check predefined channels, for the benefit of C
		2828	if ($CHANNEL{$channel}) {
		2829	$channel = $CHANNEL{$channel};
		2830
		2831	$self->ext_msg (channel_info => $channel)
		2832	if $self->can_msg;
		2833
		2834	$channel = $channel->{id};
		2835
		2836	} elsif (ref $channel) {
		2837	# send meta info to client, if not yet sent
		2838	unless (exists $self->{channel}{$channel->{id}}) {
		2839	$self->{channel}{$channel->{id}} = $channel;
		2840	$self->ext_msg (channel_info => $channel)
		2841	if $self->can_msg;
		2842	}
		2843
		2844	$channel = $channel->{id};
		2845	}
		2846
		2847	return unless @extra || length $msg;
		2848
		2849	if ($self->can_msg) {
		2850	# default colour, mask it out
		2851	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2852	if $color & cf::NDI_DEF;
		2853
		2854	my $pkt = "msg "
		2855	. $self->{json_coder}->encode (
		2856	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2857	);
		2858
		2859	# try lzf for large packets
		2860	$pkt = "lzf " . Compress::LZF::compress $pkt
		2861	if 1024 <= length $pkt and $self->{can_lzf};
		2862
		2863	# split very large packets
		2864	if (8192 < length $pkt and $self->{can_lzf}) {
		2865	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2866	$pkt = "frag";
		2867	}
		2868
		2869	$self->send_packet ($pkt);
		2870	} else {
		2871	if ($color >= 0) {
		2872	# replace some tags by gcfclient-compatible ones
		2873	for ($msg) {
		2874	1 while
		2875	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2876	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2877	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2878	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2879	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2880	}
		2881
		2882	$color &= cf::NDI_COLOR_MASK;
		2883
		2884	utf8::encode $msg;
		2885
		2886	if (0 && $msg =~ /\[/) {
		2887	# COMMAND/INFO
		2888	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2889	} else {
		2890	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2891	$self->send_packet ("drawinfo $color $msg")
		2892	}
		2893	}
		2894	}
		2895	}
		2896
		2897	=item $client->ext_msg ($type, @msg)
		2898
		2899	Sends an ext event to the client.
		2900
		2901	=cut
		2902
		2903	sub cf::client::ext_msg($$@) {
		2904	my ($self, $type, @msg) = @_;
		2905
		2906	if ($self->extcmd == 2) {
		2907	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2908	} elsif ($self->extcmd == 1) { # TODO: remove
		2909	push @msg, msgtype => "event_$type";
		2910	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2911	}
		2912	}
		2913
		2914	=item $client->ext_reply ($msgid, @msg)
		2915
		2916	Sends an ext reply to the client.
		2917
		2918	=cut
		2919
		2920	sub cf::client::ext_reply($$@) {
		2921	my ($self, $id, @msg) = @_;
		2922
		2923	if ($self->extcmd == 2) {
		2924	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2925	} elsif ($self->extcmd == 1) {
		2926	#TODO: version 1, remove
		2927	unshift @msg, msgtype => "reply", msgid => $id;
		2928	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2929	}
		2930	}
1992		2931
1993	=item $success = $client->query ($flags, "text", \&cb)	2932	=item $success = $client->query ($flags, "text", \&cb)
1994		2933
1995	Queues a query to the client, calling the given callback with	2934	Queues a query to the client, calling the given callback with
1996	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2935	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1997	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2936	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1998		2937
1999	Queries can fail, so check the return code. Or don't, as queries will become	2938	Queries can fail, so check the return code. Or don't, as queries will
2000	reliable at some point in the future.	2939	become reliable at some point in the future.
2001		2940
2002	=cut	2941	=cut
2003		2942
2004	sub cf::client::query {	2943	sub cf::client::query {
2005	my ($self, $flags, $text, $cb) = @_;	2944	my ($self, $flags, $text, $cb) = @_;
…		…
2013	utf8::encode $text;	2952	utf8::encode $text;
2014	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2953	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2015		2954
2016	$self->send_packet ($self->{query_queue}[0][0])	2955	$self->send_packet ($self->{query_queue}[0][0])
2017	if @{ $self->{query_queue} } == 1;	2956	if @{ $self->{query_queue} } == 1;
		2957
		2958	1
2018	}	2959	}
2019		2960
2020	cf::client->attach (	2961	cf::client->attach (
		2962	on_connect => sub {
		2963	my ($ns) = @_;
		2964
		2965	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2966	},
2021	on_reply => sub {	2967	on_reply => sub {
2022	my ($ns, $msg) = @_;	2968	my ($ns, $msg) = @_;
2023		2969
2024	# this weird shuffling is so that direct followup queries	2970	# this weird shuffling is so that direct followup queries
2025	# get handled first	2971	# get handled first
…		…
2037	} else {	2983	} else {
2038	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2984	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2039	}	2985	}
2040	}	2986	}
2041	},	2987	},
		2988	on_exticmd => sub {
		2989	my ($ns, $buf) = @_;
		2990
		2991	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2992
		2993	if (ref $msg) {
		2994	my ($type, $reply, @payload) =
		2995	"ARRAY" eq ref $msg
		2996	? @$msg
		2997	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2998
		2999	my @reply;
		3000
		3001	if (my $cb = $EXTICMD{$type}) {
		3002	@reply = $cb->($ns, @payload);
		3003	}
		3004
		3005	$ns->ext_reply ($reply, @reply)
		3006	if $reply;
		3007
		3008	} else {
		3009	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3010	}
		3011
		3012	cf::override;
		3013	},
2042	);	3014	);
2043		3015
2044	=item $client->async (\&cb)	3016	=item $client->async (\&cb)
2045		3017
2046	Create a new coroutine, running the specified callback. The coroutine will	3018	Create a new coroutine, running the specified callback. The coroutine will
…		…
2087	our $safe = new Safe "safe";	3059	our $safe = new Safe "safe";
2088	our $safe_hole = new Safe::Hole;	3060	our $safe_hole = new Safe::Hole;
2089		3061
2090	$SIG{FPE} = 'IGNORE';	3062	$SIG{FPE} = 'IGNORE';
2091		3063
2092	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3064	$safe->permit_only (Opcode::opset qw(
		3065	:base_core :base_mem :base_orig :base_math
		3066	grepstart grepwhile mapstart mapwhile
		3067	sort time
		3068	));
2093		3069
2094	# here we export the classes and methods available to script code	3070	# here we export the classes and methods available to script code
2095		3071
2096	=pod	3072	=pod
2097		3073
2098	The following fucntions and emthods are available within a safe environment:	3074	The following functions and methods are available within a safe environment:
2099		3075
2100	cf::object contr pay_amount pay_player map	3076	cf::object
		3077	contr pay_amount pay_player map x y force_find force_add destroy
		3078	insert remove name archname title slaying race decrease split
		3079
2101	cf::object::player player	3080	cf::object::player
2102	cf::player peaceful	3081	player
2103	cf::map trigger	3082
		3083	cf::player
		3084	peaceful
		3085
		3086	cf::map
		3087	trigger
2104		3088
2105	=cut	3089	=cut
2106		3090
2107	for (	3091	for (
2108	["cf::object" => qw(contr pay_amount pay_player map)],	3092	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3093	insert remove inv nrof name archname title slaying race
		3094	decrease split destroy change_exp)],
2109	["cf::object::player" => qw(player)],	3095	["cf::object::player" => qw(player)],
2110	["cf::player" => qw(peaceful)],	3096	["cf::player" => qw(peaceful)],
2111	["cf::map" => qw(trigger)],	3097	["cf::map" => qw(trigger)],
2112	) {	3098	) {
2113	no strict 'refs';	3099	no strict 'refs';
…		…
2184	=back	3170	=back
2185		3171
2186	=cut	3172	=cut
2187		3173
2188	#############################################################################	3174	#############################################################################
2189
2190	=head2 EXTENSION DATABASE SUPPORT
2191
2192	Crossfire maintains a very simple database for extension use. It can
2193	currently store anything that can be serialised using Storable, which
2194	excludes objects.
2195
2196	The parameter C<$family> should best start with the name of the extension
2197	using it, it should be unique.
2198
2199	=over 4
2200
2201	=item $value = cf::db_get $family => $key
2202
2203	Returns a single value from the database.
2204
2205	=item cf::db_put $family => $key => $value
2206
2207	Stores the given C<$value> in the family.
2208
2209	=cut
2210
2211	our $DB;
2212
2213	sub db_init {
2214	unless ($DB) {
2215	$DB = BDB::db_create $DB_ENV;
2216
2217	cf::sync_job {
2218	eval {
2219	$DB->set_flags (BDB::CHKSUM);
2220
2221	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2222	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2223	cf::cleanup "db_open(db): $!" if $!;
2224	};
2225	cf::cleanup "db_open(db): $@" if $@;
2226	};
2227
2228	my $path = cf::localdir . "/database.pst";
2229	if (stat $path) {
2230	cf::sync_job {
2231	my $pst = Storable::retrieve $path;
2232
2233	cf::db_put (board => data => $pst->{board});
2234	cf::db_put (guildrules => data => $pst->{guildrules});
2235	cf::db_put (rent => balance => $pst->{rent}{balance});
2236	BDB::db_env_txn_checkpoint $DB_ENV;
2237
2238	unlink $path;
2239	};
2240	}
2241	}
2242	}
2243
2244	sub db_get($$) {
2245	my $key = "$_[0]/$_[1]";
2246
2247	cf::sync_job {
2248	BDB::db_get $DB, undef, $key, my $data;
2249
2250	$! ? ()
2251	: Compress::LZF::sthaw $data
2252	}
2253	}
2254
2255	sub db_put($$$) {
2256	BDB::dbreq_pri 4;
2257	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2258	}
2259
2260	#############################################################################
2261	# the server's init and main functions	3175	# the server's init and main functions
2262		3176
		3177	sub load_facedata($) {
		3178	my ($path) = @_;
		3179
		3180	# HACK to clear player env face cache, we need some signal framework
		3181	# for this (global event?)
		3182	%ext::player_env::MUSIC_FACE_CACHE = ();
		3183
		3184	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3185
		3186	warn "loading facedata from $path\n";
		3187
		3188	my $facedata;
		3189	0 < aio_load $path, $facedata
		3190	or die "$path: $!";
		3191
		3192	$facedata = Coro::Storable::thaw $facedata;
		3193
		3194	$facedata->{version} == 2
		3195	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3196
		3197	# patch in the exptable
		3198	$facedata->{resource}{"res/exp_table"} = {
		3199	type => FT_RSRC,
		3200	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3201	};
		3202	cf::cede_to_tick;
		3203
		3204	{
		3205	my $faces = $facedata->{faceinfo};
		3206
		3207	while (my ($face, $info) = each %$faces) {
		3208	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3209
		3210	cf::face::set_visibility $idx, $info->{visibility};
		3211	cf::face::set_magicmap $idx, $info->{magicmap};
		3212	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3213	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
		3214
		3215	cf::cede_to_tick;
		3216	}
		3217
		3218	while (my ($face, $info) = each %$faces) {
		3219	next unless $info->{smooth};
		3220
		3221	my $idx = cf::face::find $face
		3222	or next;
		3223
		3224	if (my $smooth = cf::face::find $info->{smooth}) {
		3225	cf::face::set_smooth $idx, $smooth;
		3226	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3227	} else {
		3228	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3229	}
		3230
		3231	cf::cede_to_tick;
		3232	}
		3233	}
		3234
		3235	{
		3236	my $anims = $facedata->{animinfo};
		3237
		3238	while (my ($anim, $info) = each %$anims) {
		3239	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3240	cf::cede_to_tick;
		3241	}
		3242
		3243	cf::anim::invalidate_all; # d'oh
		3244	}
		3245
		3246	{
		3247	# TODO: for gcfclient pleasure, we should give resources
		3248	# that gcfclient doesn't grok a >10000 face index.
		3249	my $res = $facedata->{resource};
		3250
		3251	while (my ($name, $info) = each %$res) {
		3252	if (defined $info->{type}) {
		3253	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3254	my $data;
		3255
		3256	if ($info->{type} & 1) {
		3257	# prepend meta info
		3258
		3259	my $meta = $enc->encode ({
		3260	name => $name,
		3261	%{ $info->{meta} || {} },
		3262	});
		3263
		3264	$data = pack "(w/a*)*", $meta, $info->{data};
		3265	} else {
		3266	$data = $info->{data};
		3267	}
		3268
		3269	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3270	cf::face::set_type $idx, $info->{type};
		3271	} else {
		3272	$RESOURCE{$name} = $info;
		3273	}
		3274
		3275	cf::cede_to_tick;
		3276	}
		3277	}
		3278
		3279	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3280
		3281	1
		3282	}
		3283
		3284	cf::global->attach (on_resource_update => sub {
		3285	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3286	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3287
		3288	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3289	my $sound = $soundconf->{compat}[$_]
		3290	or next;
		3291
		3292	my $face = cf::face::find "sound/$sound->[1]";
		3293	cf::sound::set $sound->[0] => $face;
		3294	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3295	}
		3296
		3297	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3298	my $face = cf::face::find "sound/$v";
		3299	cf::sound::set $k => $face;
		3300	}
		3301	}
		3302	});
		3303
		3304	register_exticmd fx_want => sub {
		3305	my ($ns, $want) = @_;
		3306
		3307	while (my ($k, $v) = each %$want) {
		3308	$ns->fx_want ($k, $v);
		3309	}
		3310	};
		3311
2263	sub load_resources {	3312	sub load_resource_file($) {
2264	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3313	my $guard = lock_acquire "load_resource_file";
		3314
		3315	my $status = load_resource_file_ $_[0];
		3316	get_slot 0.1, 100;
		3317	cf::arch::commit_load;
		3318
		3319	$status
		3320	}
		3321
		3322	sub reload_regions {
		3323	# HACK to clear player env face cache, we need some signal framework
		3324	# for this (global event?)
		3325	%ext::player_env::MUSIC_FACE_CACHE = ();
		3326
		3327	load_resource_file "$MAPDIR/regions"
2265	or die "unable to load regions file\n";#d#	3328	or die "unable to load regions file\n";
2266	}
2267		3329
2268	sub cfg_load {	3330	for (cf::region::list) {
		3331	$_->{match} = qr/$_->{match}/
		3332	if exists $_->{match};
		3333	}
		3334	}
		3335
		3336	sub reload_facedata {
		3337	load_facedata "$DATADIR/facedata"
		3338	or die "unable to load facedata\n";
		3339	}
		3340
		3341	sub reload_archetypes {
		3342	load_resource_file "$DATADIR/archetypes"
		3343	or die "unable to load archetypes\n";
		3344	}
		3345
		3346	sub reload_treasures {
		3347	load_resource_file "$DATADIR/treasures"
		3348	or die "unable to load treasurelists\n";
		3349	}
		3350
		3351	sub reload_resources {
		3352	warn "reloading resource files...\n";
		3353
		3354	reload_facedata;
		3355	reload_archetypes;
		3356	reload_regions;
		3357	reload_treasures;
		3358
		3359	warn "finished reloading resource files\n";
		3360	}
		3361
		3362	sub reload_config {
2269	open my $fh, "<:utf8", cf::confdir . "/config"	3363	open my $fh, "<:utf8", "$CONFDIR/config"
2270	or return;	3364	or return;
2271		3365
2272	local $/;	3366	local $/;
2273	*CFG = YAML::Syck::Load <$fh>;	3367	*CFG = YAML::Load <$fh>;
2274		3368
2275	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3369	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2276		3370
2277	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3371	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2278	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3372	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2284	};	3378	};
2285	warn $@ if $@;	3379	warn $@ if $@;
2286	}	3380	}
2287	}	3381	}
2288		3382
2289	sub init {	3383	sub pidfile() {
2290	load_resources;	3384	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3385	or die "$PIDFILE: $!";
		3386	flock $fh, &Fcntl::LOCK_EX
		3387	or die "$PIDFILE: flock: $!";
		3388	$fh
		3389	}
		3390
		3391	# make sure only one server instance is running at any one time
		3392	sub atomic {
		3393	my $fh = pidfile;
		3394
		3395	my $pid = <$fh>;
		3396	kill 9, $pid if $pid > 0;
		3397
		3398	seek $fh, 0, 0;
		3399	print $fh $$;
2291	}	3400	}
2292		3401
2293	sub main {	3402	sub main {
		3403	cf::init_globals; # initialise logging
		3404
		3405	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3406	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3407	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3408	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3409
		3410	cf::init_experience;
		3411	cf::init_anim;
		3412	cf::init_attackmess;
		3413	cf::init_dynamic;
		3414	cf::init_block;
		3415
		3416	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3417
2294	# we must not ever block the main coroutine	3418	# we must not ever block the main coroutine
2295	local $Coro::idle = sub {	3419	local $Coro::idle = sub {
2296	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3420	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2297	(async {	3421	(async {
2298	Event::one_event;	3422	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3423	EV::loop EV::LOOP_ONESHOT;
2299	})->prio (Coro::PRIO_MAX);	3424	})->prio (Coro::PRIO_MAX);
2300	};	3425	};
2301		3426
2302	cfg_load;	3427	evthread_start IO::AIO::poll_fileno;
		3428
		3429	cf::sync_job {
		3430	reload_resources;
		3431	reload_config;
2303	db_init;	3432	db_init;
		3433
		3434	cf::load_settings;
		3435	cf::load_materials;
		3436	cf::init_uuid;
		3437	cf::init_signals;
		3438	cf::init_commands;
		3439	cf::init_skills;
		3440
		3441	cf::init_beforeplay;
		3442
		3443	atomic;
		3444
2304	load_extensions;	3445	load_extensions;
2305		3446
2306	$TICK_WATCHER->start;	3447	utime time, time, $RUNTIMEFILE;
		3448
		3449	# no (long-running) fork's whatsoever before this point(!)
		3450	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3451
		3452	(pop @POST_INIT)->(0) while @POST_INIT;
		3453	};
		3454
2307	Event::loop;	3455	EV::loop;
2308	}	3456	}
2309		3457
2310	#############################################################################	3458	#############################################################################
2311	# initialisation and cleanup	3459	# initialisation and cleanup
2312		3460
2313	# install some emergency cleanup handlers	3461	# install some emergency cleanup handlers
2314	BEGIN {	3462	BEGIN {
		3463	our %SIGWATCHER = ();
2315	for my $signal (qw(INT HUP TERM)) {	3464	for my $signal (qw(INT HUP TERM)) {
2316	Event->signal (	3465	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2317	reentrant => 0,
2318	data => WF_AUTOCANCEL,
2319	signal => $signal,
2320	prio => 0,
2321	cb => sub {
2322	cf::cleanup "SIG$signal";	3466	cf::cleanup "SIG$signal";
2323	},
2324	);	3467	};
		3468	}
		3469	}
		3470
		3471	sub write_runtime_sync {
		3472	# first touch the runtime file to show we are still running:
		3473	# the fsync below can take a very very long time.
		3474
		3475	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3476
		3477	my $guard = cf::lock_acquire "write_runtime";
		3478
		3479	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3480	or return;
		3481
		3482	my $value = $cf::RUNTIME + 90 + 10;
		3483	# 10 is the runtime save interval, for a monotonic clock
		3484	# 60 allows for the watchdog to kill the server.
		3485
		3486	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3487	and return;
		3488
		3489	# always fsync - this file is important
		3490	aio_fsync $fh
		3491	and return;
		3492
		3493	# touch it again to show we are up-to-date
		3494	aio_utime $fh, undef, undef;
		3495
		3496	close $fh
		3497	or return;
		3498
		3499	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3500	and return;
		3501
		3502	warn "runtime file written.\n";
		3503
2325	}	3504	1
		3505	}
		3506
		3507	our $uuid_lock;
		3508	our $uuid_skip;
		3509
		3510	sub write_uuid_sync($) {
		3511	$uuid_skip ||= $_[0];
		3512
		3513	return if $uuid_lock;
		3514	local $uuid_lock = 1;
		3515
		3516	my $uuid = "$LOCALDIR/uuid";
		3517
		3518	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3519	or return;
		3520
		3521	my $value = uuid_seq uuid_cur;
		3522
		3523	unless ($value) {
		3524	warn "cowardly refusing to write zero uuid value!\n";
		3525	return;
		3526	}
		3527
		3528	my $value = uuid_str $value + $uuid_skip;
		3529	$uuid_skip = 0;
		3530
		3531	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3532	and return;
		3533
		3534	# always fsync - this file is important
		3535	aio_fsync $fh
		3536	and return;
		3537
		3538	close $fh
		3539	or return;
		3540
		3541	aio_rename "$uuid~", $uuid
		3542	and return;
		3543
		3544	warn "uuid file written ($value).\n";
		3545
		3546	1
		3547
		3548	}
		3549
		3550	sub write_uuid($$) {
		3551	my ($skip, $sync) = @_;
		3552
		3553	$sync ? write_uuid_sync $skip
		3554	: async { write_uuid_sync $skip };
2326	}	3555	}
2327		3556
2328	sub emergency_save() {	3557	sub emergency_save() {
2329	my $freeze_guard = cf::freeze_mainloop;	3558	my $freeze_guard = cf::freeze_mainloop;
2330		3559
…		…
2336	# and maps saved/destroyed asynchronously.	3565	# and maps saved/destroyed asynchronously.
2337	warn "begin emergency player save\n";	3566	warn "begin emergency player save\n";
2338	for my $login (keys %cf::PLAYER) {	3567	for my $login (keys %cf::PLAYER) {
2339	my $pl = $cf::PLAYER{$login} or next;	3568	my $pl = $cf::PLAYER{$login} or next;
2340	$pl->valid or next;	3569	$pl->valid or next;
		3570	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2341	$pl->save;	3571	$pl->save;
2342	}	3572	}
2343	warn "end emergency player save\n";	3573	warn "end emergency player save\n";
2344		3574
2345	warn "begin emergency map save\n";	3575	warn "begin emergency map save\n";
…		…
2351	warn "end emergency map save\n";	3581	warn "end emergency map save\n";
2352		3582
2353	warn "begin emergency database checkpoint\n";	3583	warn "begin emergency database checkpoint\n";
2354	BDB::db_env_txn_checkpoint $DB_ENV;	3584	BDB::db_env_txn_checkpoint $DB_ENV;
2355	warn "end emergency database checkpoint\n";	3585	warn "end emergency database checkpoint\n";
		3586
		3587	warn "begin write uuid\n";
		3588	write_uuid_sync 1;
		3589	warn "end write uuid\n";
2356	};	3590	};
2357		3591
2358	warn "leave emergency perl save\n";	3592	warn "leave emergency perl save\n";
2359	}	3593	}
2360		3594
2361	sub post_cleanup {	3595	sub post_cleanup {
2362	my ($make_core) = @_;	3596	my ($make_core) = @_;
2363		3597
2364	warn Carp::longmess "post_cleanup backtrace"	3598	warn Carp::longmess "post_cleanup backtrace"
2365	if $make_core;	3599	if $make_core;
2366	}
2367		3600
		3601	my $fh = pidfile;
		3602	unlink $PIDFILE if <$fh> == $$;
		3603	}
		3604
		3605	# a safer delete_package, copied from Symbol
		3606	sub clear_package($) {
		3607	my $pkg = shift;
		3608
		3609	# expand to full symbol table name if needed
		3610	unless ($pkg =~ /^main::.*::$/) {
		3611	$pkg = "main$pkg" if $pkg =~ /^::/;
		3612	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3613	$pkg .= '::' unless $pkg =~ /::$/;
		3614	}
		3615
		3616	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3617	my $stem_symtab = *{$stem}{HASH};
		3618
		3619	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3620	or return;
		3621
		3622	# clear all symbols
		3623	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3624	for my $name (keys %$leaf_symtab) {
		3625	_gv_clear *{"$pkg$name"};
		3626	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3627	}
		3628	warn "cleared package $pkg\n";#d#
		3629	}
		3630
2368	sub reload() {	3631	sub do_reload_perl() {
2369	# can/must only be called in main	3632	# can/must only be called in main
2370	if ($Coro::current != $Coro::main) {	3633	if ($Coro::current != $Coro::main) {
2371	warn "can only reload from main coroutine";	3634	warn "can only reload from main coroutine";
2372	return;	3635	return;
2373	}	3636	}
2374		3637
		3638	return if $RELOAD++;
		3639
		3640	while ($RELOAD) {
2375	warn "reloading...";	3641	warn "reloading...";
2376		3642
2377	warn "cancelling server ticker";	3643	warn "entering sync_job";
2378	$TICK_WATCHER->cancel;
2379		3644
		3645	cf::sync_job {
		3646	cf::write_runtime_sync; # external watchdog should not bark
2380	cf::emergency_save;	3647	cf::emergency_save;
		3648	cf::write_runtime_sync; # external watchdog should not bark
2381		3649
2382	eval {	3650	warn "syncing database to disk";
		3651	BDB::db_env_txn_checkpoint $DB_ENV;
		3652
2383	# if anything goes wrong in here, we should simply crash as we already saved	3653	# if anything goes wrong in here, we should simply crash as we already saved
2384		3654
2385	warn "cancelling all WF_AUTOCANCEL watchers";
2386	for (Event::all_watchers) {
2387	$_->cancel if $_->data & WF_AUTOCANCEL;
2388	}
2389
2390	warn "syncing database to disk";
2391	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
2392
2393	warn "flushing outstanding aio requests";	3655	warn "flushing outstanding aio requests";
2394	for (;;) {
2395	BDB::flush;
2396	IO::AIO::flush;
2397	Coro::cede;
2398	last unless IO::AIO::nreqs || BDB::nreqs;	3656	while (IO::AIO::nreqs || BDB::nreqs) {
2399	warn "iterate...";	3657	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2400	}
2401
2402	warn "cancelling all extension coros";
2403	$_->cancel for values %EXT_CORO;
2404	%EXT_CORO = ();
2405
2406	warn "removing commands";
2407	%COMMAND = ();
2408
2409	warn "removing ext commands";
2410	%EXTCMD = ();
2411
2412	warn "unloading/nuking all extensions";
2413	for my $pkg (@EXTS) {
2414	warn "... unloading $pkg";
2415
2416	if (my $cb = $pkg->can ("unload")) {
2417	eval {
2418	$cb->($pkg);
2419	1
2420	} or warn "$pkg unloaded, but with errors: $@";
2421	}	3658	}
2422		3659
2423	warn "... nuking $pkg";	3660	warn "cancelling all extension coros";
2424	Symbol::delete_package $pkg;	3661	$_->cancel for values %EXT_CORO;
2425	}	3662	%EXT_CORO = ();
2426		3663
2427	warn "unloading all perl modules loaded from $LIBDIR";	3664	warn "removing commands";
2428	while (my ($k, $v) = each %INC) {	3665	%COMMAND = ();
2429	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2430		3666
		3667	warn "removing ext/exti commands";
		3668	%EXTCMD = ();
		3669	%EXTICMD = ();
		3670
		3671	warn "unloading/nuking all extensions";
		3672	for my $pkg (@EXTS) {
2431	warn "... unloading $k";	3673	warn "... unloading $pkg";
2432	delete $INC{$k};
2433		3674
2434	$k =~ s/\.pm$//;
2435	$k =~ s/\//::/g;
2436
2437	if (my $cb = $k->can ("unload_module")) {	3675	if (my $cb = $pkg->can ("unload")) {
		3676	eval {
2438	$cb->();	3677	$cb->($pkg);
		3678	1
		3679	} or warn "$pkg unloaded, but with errors: $@";
		3680	}
		3681
		3682	warn "... clearing $pkg";
		3683	clear_package $pkg;
2439	}	3684	}
2440		3685
2441	Symbol::delete_package $k;	3686	warn "unloading all perl modules loaded from $LIBDIR";
		3687	while (my ($k, $v) = each %INC) {
		3688	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3689
		3690	warn "... unloading $k";
		3691	delete $INC{$k};
		3692
		3693	$k =~ s/\.pm$//;
		3694	$k =~ s/\//::/g;
		3695
		3696	if (my $cb = $k->can ("unload_module")) {
		3697	$cb->();
		3698	}
		3699
		3700	clear_package $k;
2442	}	3701	}
2443		3702
2444	warn "getting rid of safe::, as good as possible";	3703	warn "getting rid of safe::, as good as possible";
2445	Symbol::delete_package "safe::$_"	3704	clear_package "safe::$_"
2446	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3705	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2447		3706
2448	warn "unloading cf.pm \"a bit\"";	3707	warn "unloading cf.pm \"a bit\"";
2449	delete $INC{"cf.pm"};	3708	delete $INC{"cf.pm"};
		3709	delete $INC{"cf/pod.pm"};
2450		3710
2451	# don't, removes xs symbols, too,	3711	# don't, removes xs symbols, too,
2452	# and global variables created in xs	3712	# and global variables created in xs
2453	#Symbol::delete_package __PACKAGE__;	3713	#clear_package __PACKAGE__;
2454		3714
2455	warn "unload completed, starting to reload now";	3715	warn "unload completed, starting to reload now";
2456		3716
2457	warn "reloading cf.pm";	3717	warn "reloading cf.pm";
2458	require cf;	3718	require cf;
2459	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3719	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2460		3720
2461	warn "loading config and database again";	3721	warn "loading config and database again";
2462	cf::cfg_load;	3722	cf::reload_config;
2463		3723
2464	warn "loading extensions";	3724	warn "loading extensions";
2465	cf::load_extensions;	3725	cf::load_extensions;
2466		3726
2467	warn "reattaching attachments to objects/players";	3727	warn "reattaching attachments to objects/players";
2468	_global_reattach;	3728	_global_reattach; # objects, sockets
2469	warn "reattaching attachments to maps";	3729	warn "reattaching attachments to maps";
2470	reattach $_ for values %MAP;	3730	reattach $_ for values %MAP;
		3731	warn "reattaching attachments to players";
		3732	reattach $_ for values %PLAYER;
2471		3733
2472	warn "loading reloadable resources";	3734	warn "running post_load";
2473	load_resources;	3735	(pop @POST_INIT)->(1) while @POST_INIT;
2474		3736
2475	warn "restarting server ticker";	3737	warn "leaving sync_job";
2476		3738
2477	$TICK_WATCHER->start;	3739	1
		3740	} or do {
		3741	warn $@;
		3742	cf::cleanup "error while reloading, exiting.";
		3743	};
		3744
		3745	warn "reloaded";
		3746	--$RELOAD;
		3747	}
		3748	};
		3749
		3750	our $RELOAD_WATCHER; # used only during reload
		3751
		3752	sub reload_perl() {
		3753	# doing reload synchronously and two reloads happen back-to-back,
		3754	# coro crashes during coro_state_free->destroy here.
		3755
		3756	$RELOAD_WATCHER ||= EV::timer $TICK * 1.5, 0, sub {
		3757	do_reload_perl;
		3758	undef $RELOAD_WATCHER;
2478	};	3759	};
2479		3760	}
2480	if ($@) {
2481	warn $@;
2482	warn "error while reloading, exiting.";
2483	exit 1;
2484	}
2485
2486	warn "reloaded";
2487	};
2488
2489	our $RELOAD_WATCHER; # used only during reload
2490		3761
2491	register_command "reload" => sub {	3762	register_command "reload" => sub {
2492	my ($who, $arg) = @_;	3763	my ($who, $arg) = @_;
2493		3764
2494	if ($who->flag (FLAG_WIZ)) {	3765	if ($who->flag (FLAG_WIZ)) {
2495	$who->message ("reloading server.");	3766	$who->message ("reloading server.");
2496		3767	async {
2497	# doing reload synchronously and two reloads happen back-to-back,	3768	$Coro::current->{desc} = "perl_reload";
2498	# coro crashes during coro_state_free->destroy here.
2499
2500	$RELOAD_WATCHER ||= Event->timer (
2501	reentrant => 0,
2502	after => 0,
2503	data => WF_AUTOCANCEL,
2504	cb => sub {
2505	reload;	3769	reload_perl;
2506	undef $RELOAD_WATCHER;
2507	},
2508	);	3770	};
2509	}	3771	}
2510	};	3772	};
2511		3773
2512	unshift @INC, $LIBDIR;	3774	unshift @INC, $LIBDIR;
2513		3775
2514	my $bug_warning = 0;	3776	my $bug_warning = 0;
2515		3777
2516	$TICK_WATCHER = Event->timer (	3778	our @WAIT_FOR_TICK;
2517	reentrant => 0,	3779	our @WAIT_FOR_TICK_BEGIN;
2518	parked => 1,	3780
2519	prio => 0,	3781	sub wait_for_tick {
2520	at => $NEXT_TICK || $TICK,	3782	return if tick_inhibit || $Coro::current == $Coro::main;
2521	data => WF_AUTOCANCEL,	3783
2522	cb => sub {	3784	my $signal = new Coro::Signal;
		3785	push @WAIT_FOR_TICK, $signal;
		3786	$signal->wait;
		3787	}
		3788
		3789	sub wait_for_tick_begin {
		3790	return if tick_inhibit || $Coro::current == $Coro::main;
		3791
		3792	my $signal = new Coro::Signal;
		3793	push @WAIT_FOR_TICK_BEGIN, $signal;
		3794	$signal->wait;
		3795	}
		3796
		3797	sub tick {
2523	if ($Coro::current != $Coro::main) {	3798	if ($Coro::current != $Coro::main) {
2524	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3799	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2525	unless ++$bug_warning > 10;	3800	unless ++$bug_warning > 10;
2526	return;	3801	return;
2527	}	3802	}
2528		3803
2529	$NOW = Event::time;
2530
2531	cf::server_tick; # one server iteration	3804	cf::server_tick; # one server iteration
2532	$RUNTIME += $TICK;
2533	$NEXT_TICK += $TICK;
2534		3805
2535	$WAIT_FOR_TICK->broadcast;	3806	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2536	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3807	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		3808	Coro::async_pool {
		3809	$Coro::current->{desc} = "runtime saver";
		3810	write_runtime_sync
		3811	or warn "ERROR: unable to write runtime file: $!";
		3812	};
		3813	}
2537		3814
2538	Event::sweep;	3815	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2539	Coro::cede_notself;	3816	$sig->send;
		3817	}
		3818	while (my $sig = shift @WAIT_FOR_TICK) {
		3819	$sig->send;
		3820	}
		3821
		3822	$LOAD = ($NOW - $TICK_START) / $TICK;
		3823	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3824
		3825	if (0) {
		3826	if ($NEXT_TICK) {
		3827	my $jitter = $TICK_START - $NEXT_TICK;
		3828	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3829	warn "jitter $JITTER\n";#d#
2540		3830	}
2541	# my $AFTER = Event::time;
2542	# warn $AFTER - $NOW;#d#
2543
2544	# if we are delayed by four ticks or more, skip them all
2545	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2546
2547	$TICK_WATCHER->at ($NEXT_TICK);
2548	$TICK_WATCHER->start;
2549	},	3831	}
2550	);	3832	}
2551		3833
2552	{	3834	{
2553	BDB::max_poll_time $TICK * 0.1;	3835	# configure BDB
2554	$BDB_POLL_WATCHER = Event->io (	3836
2555	reentrant => 0,
2556	fd => BDB::poll_fileno,
2557	poll => 'r',
2558	prio => 0,
2559	data => WF_AUTOCANCEL,
2560	cb => \&BDB::poll_cb,
2561	);
2562	BDB::min_parallel 8;	3837	BDB::min_parallel 8;
2563		3838	BDB::max_poll_reqs $TICK * 0.1;
2564	BDB::set_sync_prepare {	3839	$AnyEvent::BDB::WATCHER->priority (1);
2565	my $status;
2566	my $current = $Coro::current;
2567	(
2568	sub {
2569	$status = $!;
2570	$current->ready; undef $current;
2571	},
2572	sub {
2573	Coro::schedule while defined $current;
2574	$! = $status;
2575	},
2576	)
2577	};
2578		3840
2579	unless ($DB_ENV) {	3841	unless ($DB_ENV) {
2580	$DB_ENV = BDB::db_env_create;	3842	$DB_ENV = BDB::db_env_create;
		3843	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3844	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3845	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3846	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3847	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2581		3848
2582	cf::sync_job {	3849	cf::sync_job {
2583	eval {	3850	eval {
2584	BDB::db_env_open	3851	BDB::db_env_open
2585	$DB_ENV,	3852	$DB_ENV,
2586	$BDB_ENV_DIR,	3853	$BDBDIR,
2587	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3854	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2588	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3855	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2589	0666;	3856	0666;
2590		3857
2591	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3858	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2592
2593	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2594	$DB_ENV->set_lk_detect;
2595	};	3859	};
2596		3860
2597	cf::cleanup "db_env_open(db): $@" if $@;	3861	cf::cleanup "db_env_open(db): $@" if $@;
2598	};	3862	};
2599	}	3863	}
		3864
		3865	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3866	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3867	};
		3868	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3869	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3870	};
		3871	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3872	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3873	};
2600	}	3874	}
2601		3875
2602	{	3876	{
		3877	# configure IO::AIO
		3878
2603	IO::AIO::min_parallel 8;	3879	IO::AIO::min_parallel 8;
2604
2605	undef $Coro::AIO::WATCHER;
2606	IO::AIO::max_poll_time $TICK * 0.1;	3880	IO::AIO::max_poll_time $TICK * 0.1;
2607	$AIO_POLL_WATCHER = Event->io (	3881	undef $AnyEvent::AIO::WATCHER;
2608	reentrant => 0,
2609	fd => IO::AIO::poll_fileno,
2610	poll => 'r',
2611	prio => 6,
2612	data => WF_AUTOCANCEL,
2613	cb => \&IO::AIO::poll_cb,
2614	);
2615	}	3882	}
2616		3883
2617	$WRITE_RUNTIME_WATCHER = Event->timer (	3884	my $_log_backtrace;
2618	reentrant => 0,	3885
2619	data => WF_AUTOCANCEL,	3886	sub _log_backtrace {
2620	after => 1,	3887	my ($msg, @addr) = @_;
2621	interval => 10,	3888
2622	prio => 6, # keep it lowest so it acts like a watchdog	3889	$msg =~ s/\n//;
2623	cb => Coro::unblock_sub {	3890
2624	write_runtime	3891	# limit the # of concurrent backtraces
2625	or warn "ERROR: unable to write runtime file: $!";	3892	if ($_log_backtrace < 2) {
		3893	++$_log_backtrace;
		3894	my $perl_bt = Carp::longmess $msg;
		3895	async {
		3896	$Coro::current->{desc} = "abt $msg";
		3897
		3898	my @bt = fork_call {
		3899	@addr = map { sprintf "%x", $_ } @addr;
		3900	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3901	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3902	or die "addr2line: $!";
		3903
		3904	my @funcs;
		3905	my @res = <$fh>;
		3906	chomp for @res;
		3907	while (@res) {
		3908	my ($func, $line) = splice @res, 0, 2, ();
		3909	push @funcs, "[$func] $line";
		3910	}
		3911
		3912	@funcs
		3913	};
		3914
		3915	LOG llevInfo, "[ABT] $perl_bt\n";
		3916	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3917	LOG llevInfo, "[ABT] $_\n" for @bt;
		3918	--$_log_backtrace;
		3919	};
		3920	} else {
		3921	LOG llevInfo, "[ABT] $msg\n";
		3922	LOG llevInfo, "[ABT] [suppressed]\n";
2626	},	3923	}
2627	);	3924	}
		3925
		3926	# load additional modules
		3927	use cf::pod;
2628		3928
2629	END { cf::emergency_save }	3929	END { cf::emergency_save }
2630		3930
2631	1	3931	1
2632		3932

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