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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.207 by root, Sun Feb 11 22:42:09 2007 UTC vs.
Revision 1.457 by root, Wed Oct 1 05:50:19 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;
		59	use Compress::LZF;
		60	use Digest::MD5 ();
27		61
28	use Event; $Event::Eval = 1; # no idea why this is required, but it is	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";
		73	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
29		74
30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	75	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
31
32	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
33	$YAML::Syck::ImplicitUnicode = 1;
34
35	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
36		76
37	our %COMMAND = ();	77	our %COMMAND = ();
38	our %COMMAND_TIME = ();	78	our %COMMAND_TIME = ();
39		79
40	our @EXTS = (); # list of extension package names	80	our @EXTS = (); # list of extension package names
41	our %EXTCMD = ();	81	our %EXTCMD = ();
		82	our %EXTICMD = ();
42	our %EXT_CORO = (); # coroutines bound to extensions	83	our %EXT_CORO = (); # coroutines bound to extensions
43	our %EXT_MAP = (); # pluggable maps	84	our %EXT_MAP = (); # pluggable maps
44		85
		86	our $RELOAD; # number of reloads so far, non-zero while in reload
45	our @EVENT;	87	our @EVENT;
46	our $LIBDIR = datadir . "/ext";
47		88
48	our $TICK = MAX_TIME * 1e-6;	89	our $CONFDIR = confdir;
49	our $TICK_WATCHER;	90	our $DATADIR = datadir;
50	our $AIO_POLL_WATCHER;	91	our $LIBDIR = "$DATADIR/ext";
51	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
52	our $NEXT_TICK;	107	our $NEXT_TICK;
53	our $NOW;
54	our $USE_FSYNC = 1; # use fsync to write maps - default off	108	our $USE_FSYNC = 1; # use fsync to write maps - default off
55		109
		110	our $BDB_DEADLOCK_WATCHER;
		111	our $BDB_CHECKPOINT_WATCHER;
56	our $BDB_POLL_WATCHER;	112	our $BDB_TRICKLE_WATCHER;
57	our $DB_ENV;	113	our $DB_ENV;
58		114
59	our %CFG;	115	our %CFG;
60		116
61	our $UPTIME; $UPTIME ||= time;	117	our $UPTIME; $UPTIME ||= time;
62	our $RUNTIME;	118	our $RUNTIME;
		119	our $NOW;
63		120
64	our %PLAYER; # all users	121	our (%PLAYER, %PLAYER_LOADING); # all users
65	our %MAP; # all maps	122	our (%MAP, %MAP_LOADING ); # all maps
66	our $LINK_MAP; # the special {link} map, which is always available	123	our $LINK_MAP; # the special {link} map, which is always available
67	our $RANDOM_MAPS = cf::localdir . "/random";
68	our $BDB_ENV_DIR = cf::localdir . "/db";
69
70	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
71	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
72		124
73	# 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 ∕
74	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	126	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
75		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
		135	our $REATTACH_ON_RELOAD; # ste to true to force object reattach on reload (slow)
		136
76	binmode STDOUT;	137	binmode STDOUT;
77	binmode STDERR;	138	binmode STDERR;
78		139
79	# read virtual server time, if available	140	# read virtual server time, if available
80	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	141	unless ($RUNTIME || !-e $RUNTIMEFILE) {
81	open my $fh, "<", cf::localdir . "/runtime"	142	open my $fh, "<", $RUNTIMEFILE
82	or die "unable to read runtime file: $!";	143	or die "unable to read $RUNTIMEFILE file: $!";
83	$RUNTIME = <$fh> + 0.;	144	$RUNTIME = <$fh> + 0.;
84	}	145	}
85		146
86	mkdir cf::localdir;	147	mkdir $_
87	mkdir cf::localdir . "/" . cf::playerdir;	148	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
88	mkdir cf::localdir . "/" . cf::tmpdir;
89	mkdir cf::localdir . "/" . cf::uniquedir;
90	mkdir $RANDOM_MAPS;
91	mkdir $BDB_ENV_DIR;
92		149
93	our $EMERGENCY_POSITION;	150	our $EMERGENCY_POSITION;
94		151
95	sub cf::map::normalise;	152	sub cf::map::normalise;
96		153
…		…
107	=item $cf::RUNTIME	164	=item $cf::RUNTIME
108		165
109	The time this server has run, starts at 0 and is increased by $cf::TICK on	166	The time this server has run, starts at 0 and is increased by $cf::TICK on
110	every server tick.	167	every server tick.
111		168
112	=item $cf::LIBDIR	169	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		170	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		171	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
113		172
114	The perl library directory, where extensions and cf-specific modules can	173	Various directories - "/etc", read-only install directory, perl-library
115	be found. It will be added to C<@INC> automatically.	174	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		175	unique-items directory, player file directory, random maps directory and
		176	database environment.
116		177
117	=item $cf::NOW	178	=item $cf::NOW
118		179
119	The time of the last (current) server tick.	180	The time of the last (current) server tick.
120		181
121	=item $cf::TICK	182	=item $cf::TICK
122		183
123	The interval between server ticks, in seconds.	184	The interval between server ticks, in seconds.
124		185
		186	=item $cf::LOADAVG
		187
		188	The current CPU load on the server (alpha-smoothed), as a value between 0
		189	(none) and 1 (overloaded), indicating how much time is spent on processing
		190	objects per tick. Healthy values are < 0.5.
		191
		192	=item $cf::LOAD
		193
		194	The raw value load value from the last tick.
		195
125	=item %cf::CFG	196	=item %cf::CFG
126		197
127	Configuration for the server, loaded from C</etc/crossfire/config>, or	198	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
128	from wherever your confdir points to.	199	from wherever your confdir points to.
129		200
130	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	201	=item cf::wait_for_tick, cf::wait_for_tick_begin
131		202
132	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	203	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
133	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	204	returns directly I<after> the tick processing (and consequently, can only wake one process
134	processing has been done. Call C<< ->wait >> on them to maximise the	205	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
135	window of cpu time available, or simply to synchronise to the server tick.	206
		207	=item @cf::INVOKE_RESULTS
		208
		209	This array contains the results of the last C<invoke ()> call. When
		210	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		211	that call.
136		212
137	=back	213	=back
138		214
139	=cut	215	=cut
140		216
141	BEGIN {	217	BEGIN {
142	*CORE::GLOBAL::warn = sub {	218	*CORE::GLOBAL::warn = sub {
143	my $msg = join "", @_;	219	my $msg = join "", @_;
144	utf8::encode $msg;
145		220
146	$msg .= "\n"	221	$msg .= "\n"
147	unless $msg =~ /\n$/;	222	unless $msg =~ /\n$/;
148		223
		224	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		225
149	LOG llevError, $msg;	226	LOG llevError, $msg;
150	};	227	};
151	}	228	}
		229
		230	$Coro::State::DIEHOOK = sub {
		231	return unless $^S eq 0; # "eq", not "=="
		232
		233	if ($Coro::current == $Coro::main) {#d#
		234	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		235	return;#d#
		236	}#d#
		237
		238	# kill coroutine otherwise
		239	warn Carp::longmess $_[0];
		240	Coro::terminate
		241	};
		242
		243	$SIG{__DIE__} = sub { }; #d#?
152		244
153	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	245	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
154	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	246	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
155	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	247	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
156	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	248	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
157	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	249	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		250	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
158	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	251	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
159		252
160	# we bless all objects into (empty) derived classes to force a method lookup	253	# we bless all objects into (empty) derived classes to force a method lookup
161	# within the Safe compartment.	254	# within the Safe compartment.
162	for my $pkg (qw(	255	for my $pkg (qw(
163	cf::global cf::attachable	256	cf::global cf::attachable
164	cf::object cf::object::player	257	cf::object cf::object::player
165	cf::client cf::player	258	cf::client cf::player
166	cf::arch cf::living	259	cf::arch cf::living
		260	cf::map cf::mapspace
167	cf::map cf::party cf::region	261	cf::party cf::region
168	)) {	262	)) {
169	no strict 'refs';
170	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	263	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
171	}	264	}
172		265
173	$Event::DIED = sub {	266	$EV::DIED = sub {
174	warn "error in event callback: @_";	267	warn "error in event callback: @_";
175	};	268	};
		269
		270	#############################################################################
176		271
177	=head2 UTILITY FUNCTIONS	272	=head2 UTILITY FUNCTIONS
178		273
179	=over 4	274	=over 4
180		275
…		…
199	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	294	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
200	$d	295	$d
201	} || "[unable to dump $_[0]: '$@']";	296	} || "[unable to dump $_[0]: '$@']";
202	}	297	}
203		298
204	use JSON::Syck (); # TODO# replace by JSON::PC once working
205
206	=item $ref = cf::from_json $json	299	=item $ref = cf::decode_json $json
207		300
208	Converts a JSON string into the corresponding perl data structure.	301	Converts a JSON string into the corresponding perl data structure.
209		302
210	=cut
211
212	sub from_json($) {
213	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
214	JSON::Syck::Load $_[0]
215	}
216
217	=item $json = cf::to_json $ref	303	=item $json = cf::encode_json $ref
218		304
219	Converts a perl data structure into its JSON representation.	305	Converts a perl data structure into its JSON representation.
220		306
221	=cut	307	=cut
222		308
223	sub to_json($) {	309	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
224	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	310
225	JSON::Syck::Dump $_[0]	311	sub encode_json($) { $json_coder->encode ($_[0]) }
		312	sub decode_json($) { $json_coder->decode ($_[0]) }
		313
		314	=item cf::post_init { BLOCK }
		315
		316	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		317	but I<before> the server starts ticking again.
		318
		319	The cdoeblock will have a single boolean argument to indicate whether this
		320	is a reload or not.
		321
		322	=cut
		323
		324	sub post_init(&) {
		325	push @POST_INIT, shift;
226	}	326	}
227		327
228	=item cf::lock_wait $string	328	=item cf::lock_wait $string
229		329
230	Wait until the given lock is available. See cf::lock_acquire.	330	Wait until the given lock is available. See cf::lock_acquire.
…		…
234	Wait until the given lock is available and then acquires it and returns	334	Wait until the given lock is available and then acquires it and returns
235	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	335	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
236	for example when the coroutine gets canceled), the lock is automatically	336	for example when the coroutine gets canceled), the lock is automatically
237	returned.	337	returned.
238		338
		339	Locks are *not* recursive, locking from the same coro twice results in a
		340	deadlocked coro.
		341
239	Lock names should begin with a unique identifier (for example, cf::map::find	342	Lock names should begin with a unique identifier (for example, cf::map::find
240	uses map_find and cf::map::load uses map_load).	343	uses map_find and cf::map::load uses map_load).
241		344
		345	=item $locked = cf::lock_active $string
		346
		347	Return true if the lock is currently active, i.e. somebody has locked it.
		348
242	=cut	349	=cut
243		350
244	our %LOCK;	351	our %LOCK;
		352	our %LOCKER;#d#
245		353
246	sub lock_wait($) {	354	sub lock_wait($) {
247	my ($key) = @_;	355	my ($key) = @_;
248		356
		357	if ($LOCKER{$key} == $Coro::current) {#d#
		358	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		359	return;#d#
		360	}#d#
		361
249	# wait for lock, if any	362	# wait for lock, if any
250	while ($LOCK{$key}) {	363	while ($LOCK{$key}) {
		364	#local $Coro::current->{desc} = "$Coro::current->{desc} <waiting for lock $key>";
251	push @{ $LOCK{$key} }, $Coro::current;	365	push @{ $LOCK{$key} }, $Coro::current;
252	Coro::schedule;	366	Coro::schedule;
253	}	367	}
254	}	368	}
255		369
…		…
258		372
259	# wait, to be sure we are not locked	373	# wait, to be sure we are not locked
260	lock_wait $key;	374	lock_wait $key;
261		375
262	$LOCK{$key} = [];	376	$LOCK{$key} = [];
		377	$LOCKER{$key} = $Coro::current;#d#
263		378
264	Coro::guard {	379	Coro::guard {
		380	delete $LOCKER{$key};#d#
265	# wake up all waiters, to be on the safe side	381	# wake up all waiters, to be on the safe side
266	$_->ready for @{ delete $LOCK{$key} };	382	$_->ready for @{ delete $LOCK{$key} };
267	}	383	}
268	}	384	}
269		385
		386	sub lock_active($) {
		387	my ($key) = @_;
		388
		389	! ! $LOCK{$key}
		390	}
		391
270	sub freeze_mainloop {	392	sub freeze_mainloop {
271	return unless $TICK_WATCHER->is_active;	393	tick_inhibit_inc;
272		394
273	my $guard = Coro::guard {	395	Coro::guard \&tick_inhibit_dec;
274	$TICK_WATCHER->start;	396	}
275	$WRITE_RUNTIME_WATCHER->start;	397
		398	=item cf::periodic $interval, $cb
		399
		400	Like EV::periodic, but randomly selects a starting point so that the actions
		401	get spread over timer.
		402
		403	=cut
		404
		405	sub periodic($$) {
		406	my ($interval, $cb) = @_;
		407
		408	my $start = rand List::Util::min 180, $interval;
		409
		410	EV::periodic $start, $interval, 0, $cb
		411	}
		412
		413	=item cf::get_slot $time[, $priority[, $name]]
		414
		415	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		416	This call blocks and returns only when you have at least C<$time> seconds
		417	of cpu time till the next tick. The slot is only valid till the next cede.
		418
		419	The optional C<$name> can be used to identify the job to run. It might be
		420	used for statistical purposes and should identify the same time-class.
		421
		422	Useful for short background jobs.
		423
		424	=cut
		425
		426	our @SLOT_QUEUE;
		427	our $SLOT_QUEUE;
		428
		429	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		430	$SLOT_QUEUE = Coro::async {
		431	$Coro::current->desc ("timeslot manager");
		432
		433	my $signal = new Coro::Signal;
		434
		435	while () {
		436	next_job:
		437	my $avail = cf::till_tick;
		438	if ($avail > 0.01) {
		439	for (0 .. $#SLOT_QUEUE) {
		440	if ($SLOT_QUEUE[$_][0] < $avail) {
		441	my $job = splice @SLOT_QUEUE, $_, 1, ();
		442	$job->[2]->send;
		443	Coro::cede;
		444	goto next_job;
		445	}
		446	}
		447	}
		448
		449	if (@SLOT_QUEUE) {
		450	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		451	push @cf::WAIT_FOR_TICK, $signal;
		452	$signal->wait;
		453	} else {
		454	Coro::schedule;
		455	}
276	};	456	}
277	$WRITE_RUNTIME_WATCHER->stop;	457	};
278	$TICK_WATCHER->stop;	458
279	$guard	459	sub get_slot($;$$) {
		460	return if tick_inhibit || $Coro::current == $Coro::main;
		461
		462	my ($time, $pri, $name) = @_;
		463
		464	$time = $TICK * .6 if $time > $TICK * .6;
		465	my $sig = new Coro::Signal;
		466
		467	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		468	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		469	$SLOT_QUEUE->ready;
		470	$sig->wait;
280	}	471	}
281		472
282	=item cf::async { BLOCK }	473	=item cf::async { BLOCK }
283		474
284	Currently the same as Coro::async_pool, meaning you cannot use	475	Currently the same as Coro::async_pool, meaning you cannot use
…		…
289		480
290	BEGIN { *async = \&Coro::async_pool }	481	BEGIN { *async = \&Coro::async_pool }
291		482
292	=item cf::sync_job { BLOCK }	483	=item cf::sync_job { BLOCK }
293		484
294	The design of crossfire+ requires that the main coro ($Coro::main) is	485	The design of Deliantra requires that the main coroutine ($Coro::main)
295	always able to handle events or runnable, as crossfire+ is only partly	486	is always able to handle events or runnable, as Deliantra is only
296	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	487	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		488	acceptable.
297		489
298	If it must be done, put the blocking parts into C<sync_job>. This will run	490	If it must be done, put the blocking parts into C<sync_job>. This will run
299	the given BLOCK in another coroutine while waiting for the result. The	491	the given BLOCK in another coroutine while waiting for the result. The
300	server will be frozen during this time, so the block should either finish	492	server will be frozen during this time, so the block should either finish
301	fast or be very important.	493	fast or be very important.
…		…
304		496
305	sub sync_job(&) {	497	sub sync_job(&) {
306	my ($job) = @_;	498	my ($job) = @_;
307		499
308	if ($Coro::current == $Coro::main) {	500	if ($Coro::current == $Coro::main) {
		501	my $time = EV::time;
		502
309	# this is the main coro, too bad, we have to block	503	# this is the main coro, too bad, we have to block
310	# till the operation succeeds, freezing the server :/	504	# till the operation succeeds, freezing the server :/
311		505
312	# TODO: use suspend/resume instead	506	LOG llevError, Carp::longmess "sync job";#d#
313	# (but this is cancel-safe)	507
314	my $freeze_guard = freeze_mainloop;	508	my $freeze_guard = freeze_mainloop;
315		509
316	my $busy = 1;	510	my $busy = 1;
317	my @res;	511	my @res;
318		512
319	(async {	513	(async {
		514	$Coro::current->desc ("sync job coro");
320	@res = eval { $job->() };	515	@res = eval { $job->() };
321	warn $@ if $@;	516	warn $@ if $@;
322	undef $busy;	517	undef $busy;
323	})->prio (Coro::PRIO_MAX);	518	})->prio (Coro::PRIO_MAX);
324		519
325	while ($busy) {	520	while ($busy) {
326	Coro::cede or Event::one_event;	521	if (Coro::nready) {
		522	Coro::cede_notself;
		523	} else {
		524	EV::loop EV::LOOP_ONESHOT;
327	}	525	}
		526	}
		527
		528	my $time = EV::time - $time;
		529
		530	$TICK_START += $time; # do not account sync jobs to server load
328		531
329	wantarray ? @res : $res[0]	532	wantarray ? @res : $res[0]
330	} else {	533	} else {
331	# we are in another coroutine, how wonderful, everything just works	534	# we are in another coroutine, how wonderful, everything just works
332		535
…		…
352	$EXT_CORO{$coro+0} = $coro;	555	$EXT_CORO{$coro+0} = $coro;
353		556
354	$coro	557	$coro
355	}	558	}
356		559
357	sub write_runtime {	560	=item fork_call { }, $args
358	my $runtime = cf::localdir . "/runtime";
359		561
360	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	562	Executes the given code block with the given arguments in a seperate
361	or return;	563	process, returning the results. Everything must be serialisable with
		564	Coro::Storable. May, of course, block. Note that the executed sub may
		565	never block itself or use any form of event handling.
362		566
363	my $value = $cf::RUNTIME + 90 + 10;	567	=cut
364	# 10 is the runtime save interval, for a monotonic clock
365	# 60 allows for the watchdog to kill the server.
366		568
367	(aio_write $fh, 0, (length $value), $value, 0) <= 0	569	sub fork_call(&@) {
368	and return;	570	my ($cb, @args) = @_;
369		571
370	# always fsync - this file is important	572	# we seemingly have to make a local copy of the whole thing,
371	aio_fsync $fh	573	# otherwise perl prematurely frees the stuff :/
372	and return;	574	# TODO: investigate and fix (likely this will be rather laborious)
373		575
374	close $fh	576	my @res = Coro::Util::fork_eval {
375	or return;	577	reset_signals;
		578	&$cb
		579	}, @args;
376		580
377	aio_rename "$runtime~", $runtime	581	wantarray ? @res : $res[-1]
378	and return;	582	}
379		583
		584	=item $coin = coin_from_name $name
		585
		586	=cut
		587
		588	our %coin_alias = (
		589	"silver" => "silvercoin",
		590	"silvercoin" => "silvercoin",
		591	"silvercoins" => "silvercoin",
		592	"gold" => "goldcoin",
		593	"goldcoin" => "goldcoin",
		594	"goldcoins" => "goldcoin",
		595	"platinum" => "platinacoin",
		596	"platinumcoin" => "platinacoin",
		597	"platinumcoins" => "platinacoin",
		598	"platina" => "platinacoin",
		599	"platinacoin" => "platinacoin",
		600	"platinacoins" => "platinacoin",
		601	"royalty" => "royalty",
		602	"royalties" => "royalty",
		603	);
		604
		605	sub coin_from_name($) {
		606	$coin_alias{$_[0]}
		607	? cf::arch::find $coin_alias{$_[0]}
		608	: undef
		609	}
		610
		611	=item $value = cf::db_get $family => $key
		612
		613	Returns a single value from the environment database.
		614
		615	=item cf::db_put $family => $key => $value
		616
		617	Stores the given C<$value> in the family. It can currently store binary
		618	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		619
		620	=item $db = cf::db_table "name"
		621
		622	Create and/or open a new database table. The string must not be "db" and must be unique
		623	within each server.
		624
		625	=cut
		626
		627	sub db_table($) {
		628	my ($name) = @_;
		629	my $db = BDB::db_create $DB_ENV;
		630
		631	eval {
		632	$db->set_flags (BDB::CHKSUM);
		633
		634	utf8::encode $name;
		635	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		636	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		637	cf::cleanup "db_open(db): $!" if $!;
		638	};
		639	cf::cleanup "db_open(db): $@" if $@;
		640
		641	$db
		642	}
		643
		644	our $DB;
		645
		646	sub db_init {
		647	cf::sync_job {
		648	$DB ||= db_table "db";
		649	};
		650	}
		651
		652	sub db_get($$) {
		653	my $key = "$_[0]/$_[1]";
		654
		655	cf::sync_job {
		656	BDB::db_get $DB, undef, $key, my $data;
		657
		658	$! ? ()
		659	: $data
380	1	660	}
		661	}
		662
		663	sub db_put($$$) {
		664	BDB::dbreq_pri 4;
		665	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		666	}
		667
		668	=item cf::cache $id => [$paths...], $processversion => $process
		669
		670	Generic caching function that returns the value of the resource $id,
		671	caching and regenerating as required.
		672
		673	This function can block.
		674
		675	=cut
		676
		677	sub cache {
		678	my ($id, $src, $processversion, $process) = @_;
		679
		680	my $meta =
		681	join "\x00",
		682	$processversion,
		683	map {
		684	aio_stat $_
		685	and Carp::croak "$_: $!";
		686
		687	($_, (stat _)[7,9])
		688	} @$src;
		689
		690	my $dbmeta = db_get cache => "$id/meta";
		691	if ($dbmeta ne $meta) {
		692	# changed, we may need to process
		693
		694	my @data;
		695	my $md5;
		696
		697	for (0 .. $#$src) {
		698	0 <= aio_load $src->[$_], $data[$_]
		699	or Carp::croak "$src->[$_]: $!";
		700	}
		701
		702	# if processing is expensive, check
		703	# checksum first
		704	if (1) {
		705	$md5 =
		706	join "\x00",
		707	$processversion,
		708	map {
		709	cf::cede_to_tick;
		710	($src->[$_], Digest::MD5::md5_hex $data[$_])
		711	} 0.. $#$src;
		712
		713
		714	my $dbmd5 = db_get cache => "$id/md5";
		715	if ($dbmd5 eq $md5) {
		716	db_put cache => "$id/meta", $meta;
		717
		718	return db_get cache => "$id/data";
		719	}
		720	}
		721
		722	my $t1 = Time::HiRes::time;
		723	my $data = $process->(\@data);
		724	my $t2 = Time::HiRes::time;
		725
		726	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		727
		728	db_put cache => "$id/data", $data;
		729	db_put cache => "$id/md5" , $md5;
		730	db_put cache => "$id/meta", $meta;
		731
		732	return $data;
		733	}
		734
		735	db_get cache => "$id/data"
		736	}
		737
		738	=item cf::datalog type => key => value, ...
		739
		740	Log a datalog packet of the given type with the given key-value pairs.
		741
		742	=cut
		743
		744	sub datalog($@) {
		745	my ($type, %kv) = @_;
		746	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
381	}	747	}
382		748
383	=back	749	=back
384		750
385	=cut	751	=cut
386		752
387	#############################################################################	753	#############################################################################
388		754
389	=head2 ATTACHABLE OBJECTS	755	=head2 ATTACHABLE OBJECTS
390		756
391	Many objects in crossfire are so-called attachable objects. That means you can	757	Many objects in deliantra are so-called attachable objects. That means you can
392	attach callbacks/event handlers (a collection of which is called an "attachment")	758	attach callbacks/event handlers (a collection of which is called an "attachment")
393	to it. All such attachable objects support the following methods.	759	to it. All such attachable objects support the following methods.
394		760
395	In the following description, CLASS can be any of C<global>, C<object>	761	In the following description, CLASS can be any of C<global>, C<object>
396	C<player>, C<client> or C<map> (i.e. the attachable objects in	762	C<player>, C<client> or C<map> (i.e. the attachable objects in
397	crossfire+).	763	Deliantra).
398		764
399	=over 4	765	=over 4
400		766
401	=item $attachable->attach ($attachment, key => $value...)	767	=item $attachable->attach ($attachment, key => $value...)
402		768
…		…
446	=item cf::CLASS::attachment $name, ...	812	=item cf::CLASS::attachment $name, ...
447		813
448	Register an attachment by C<$name> through which attachable objects of the	814	Register an attachment by C<$name> through which attachable objects of the
449	given CLASS can refer to this attachment.	815	given CLASS can refer to this attachment.
450		816
451	Some classes such as crossfire maps and objects can specify attachments	817	Some classes such as deliantra maps and objects can specify attachments
452	that are attached at load/instantiate time, thus the need for a name.	818	that are attached at load/instantiate time, thus the need for a name.
453		819
454	These calls expect any number of the following handler/hook descriptions:	820	These calls expect any number of the following handler/hook descriptions:
455		821
456	=over 4	822	=over 4
…		…
565	$registry = $CB_TYPE[$object_type] ||= [];	931	$registry = $CB_TYPE[$object_type] ||= [];
566		932
567	} elsif ($type eq "subtype") {	933	} elsif ($type eq "subtype") {
568	defined $object_type or Carp::croak "subtype specified without type";	934	defined $object_type or Carp::croak "subtype specified without type";
569	my $object_subtype = shift @arg;	935	my $object_subtype = shift @arg;
570	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	936	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
571		937
572	} elsif ($type eq "package") {	938	} elsif ($type eq "package") {
573	my $pkg = shift @arg;	939	my $pkg = shift @arg;
574		940
575	while (my ($name, $id) = each %cb_id) {	941	while (my ($name, $id) = each %cb_id) {
…		…
604	_attach $registry, $klass, @attach;	970	_attach $registry, $klass, @attach;
605	}	971	}
606		972
607	$obj->{$name} = \%arg;	973	$obj->{$name} = \%arg;
608	} else {	974	} else {
609	warn "object uses attachment '$name' that is not available, postponing.\n";	975	warn "object uses attachment '$name' which is not available, postponing.\n";
610	}	976	}
611		977
612	$obj->{_attachment}{$name} = undef;	978	$obj->{_attachment}{$name} = undef;
613	}	979	}
614		980
…		…
616	if (ref $_[0]) {	982	if (ref $_[0]) {
617	_object_attach @_;	983	_object_attach @_;
618	} else {	984	} else {
619	_attach shift->_attach_registry, @_;	985	_attach shift->_attach_registry, @_;
620	}	986	}
		987	_recalc_want;
621	};	988	};
622		989
623	# all those should be optimised	990	# all those should be optimised
624	sub cf::attachable::detach {	991	sub cf::attachable::detach {
625	my ($obj, $name) = @_;	992	my ($obj, $name) = @_;
…		…
628	delete $obj->{_attachment}{$name};	995	delete $obj->{_attachment}{$name};
629	reattach ($obj);	996	reattach ($obj);
630	} else {	997	} else {
631	Carp::croak "cannot, currently, detach class attachments";	998	Carp::croak "cannot, currently, detach class attachments";
632	}	999	}
		1000	_recalc_want;
633	};	1001	};
634		1002
635	sub cf::attachable::attached {	1003	sub cf::attachable::attached {
636	my ($obj, $name) = @_;	1004	my ($obj, $name) = @_;
637		1005
…		…
652	";	1020	";
653	die if $@;	1021	die if $@;
654	}	1022	}
655		1023
656	our $override;	1024	our $override;
657	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1025	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
658		1026
659	sub override {	1027	sub override {
660	$override = 1;	1028	$override = 1;
661	@invoke_results = ();	1029	@INVOKE_RESULTS = (@_);
662	}	1030	}
663		1031
664	sub do_invoke {	1032	sub do_invoke {
665	my $event = shift;	1033	my $event = shift;
666	my $callbacks = shift;	1034	my $callbacks = shift;
667		1035
668	@invoke_results = ();	1036	@INVOKE_RESULTS = ();
669		1037
670	local $override;	1038	local $override;
671		1039
672	for (@$callbacks) {	1040	for (@$callbacks) {
673	eval { &{$_->[1]} };	1041	eval { &{$_->[1]} };
…		…
682	}	1050	}
683		1051
684	0	1052	0
685	}	1053	}
686		1054
687	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1055	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
688		1056
689	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1057	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
690		1058
691	Generate an object-specific event with the given arguments.	1059	Generate an object-specific event with the given arguments.
692		1060
693	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1061	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
694	removed in future versions), and there is no public API to access override	1062	removed in future versions), and there is no public API to access override
695	results (if you must, access C<@cf::invoke_results> directly).	1063	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
696		1064
697	=back	1065	=back
698		1066
699	=cut	1067	=cut
700		1068
701	#############################################################################	1069	#############################################################################
702	# object support	1070	# object support
		1071
		1072	sub _object_equal($$);
		1073	sub _object_equal($$) {
		1074	my ($a, $b) = @_;
		1075
		1076	return 0 unless (ref $a) eq (ref $b);
		1077
		1078	if ("HASH" eq ref $a) {
		1079	my @ka = keys %$a;
		1080	my @kb = keys %$b;
		1081
		1082	return 0 if @ka != @kb;
		1083
		1084	for (0 .. $#ka) {
		1085	return 0 unless $ka[$_] eq $kb[$_];
		1086	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1087	}
		1088
		1089	} elsif ("ARRAY" eq ref $a) {
		1090
		1091	return 0 if @$a != @$b;
		1092
		1093	for (0 .. $#$a) {
		1094	return 0 unless _object_equal $a->[$_], $b->[$_];
		1095	}
		1096
		1097	} elsif ($a ne $b) {
		1098	return 0;
		1099	}
		1100
		1101	1
		1102	}
		1103
		1104	our $SLOW_MERGES;#d#
		1105	sub _can_merge {
		1106	my ($ob1, $ob2) = @_;
		1107
		1108	++$SLOW_MERGES;#d#
		1109
		1110	# we do the slow way here
		1111	return _object_equal $ob1, $ob2
		1112	}
703		1113
704	sub reattach {	1114	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	1115	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	1116	my ($obj) = @_;
707		1117
		1118	# no longer needed after getting rid of delete_package?
708	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1119	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
709		1120
710	my $registry = $obj->registry;	1121	my $registry = $obj->registry;
711		1122
712	@$registry = ();	1123	@$registry = ();
713		1124
…		…
728	cf::attachable->attach (	1139	cf::attachable->attach (
729	prio => -1000000,	1140	prio => -1000000,
730	on_instantiate => sub {	1141	on_instantiate => sub {
731	my ($obj, $data) = @_;	1142	my ($obj, $data) = @_;
732		1143
733	$data = from_json $data;	1144	$data = decode_json $data;
734		1145
735	for (@$data) {	1146	for (@$data) {
736	my ($name, $args) = @$_;	1147	my ($name, $args) = @$_;
737		1148
738	$obj->attach ($name, %{$args || {} });	1149	$obj->attach ($name, %{$args || {} });
…		…
754	sub object_freezer_save {	1165	sub object_freezer_save {
755	my ($filename, $rdata, $objs) = @_;	1166	my ($filename, $rdata, $objs) = @_;
756		1167
757	sync_job {	1168	sync_job {
758	if (length $$rdata) {	1169	if (length $$rdata) {
		1170	utf8::decode (my $decname = $filename);
759	warn sprintf "saving %s (%d,%d)\n",	1171	warn sprintf "saving %s (%d,%d)\n",
760	$filename, length $$rdata, scalar @$objs;	1172	$decname, length $$rdata, scalar @$objs;
761		1173
762	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1174	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
763	chmod SAVE_MODE, $fh;	1175	aio_chmod $fh, SAVE_MODE;
764	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1176	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
765	aio_fsync $fh if $cf::USE_FSYNC;	1177	aio_fsync $fh if $cf::USE_FSYNC;
766	close $fh;	1178	aio_close $fh;
767		1179
768	if (@$objs) {	1180	if (@$objs) {
769	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1181	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
770	chmod SAVE_MODE, $fh;	1182	aio_chmod $fh, SAVE_MODE;
771	my $data = Storable::nfreeze { version => 1, objs => $objs };	1183	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
772	aio_write $fh, 0, (length $data), $data, 0;	1184	aio_write $fh, 0, (length $data), $data, 0;
773	aio_fsync $fh if $cf::USE_FSYNC;	1185	aio_fsync $fh if $cf::USE_FSYNC;
774	close $fh;	1186	aio_close $fh;
775	aio_rename "$filename.pst~", "$filename.pst";	1187	aio_rename "$filename.pst~", "$filename.pst";
776	}	1188	}
777	} else {	1189	} else {
778	aio_unlink "$filename.pst";	1190	aio_unlink "$filename.pst";
779	}	1191	}
780		1192
781	aio_rename "$filename~", $filename;	1193	aio_rename "$filename~", $filename;
		1194
		1195	$filename =~ s%/[^/]+$%%;
		1196	aio_pathsync $filename if $cf::USE_FSYNC;
782	} else {	1197	} else {
783	warn "FATAL: $filename~: $!\n";	1198	warn "FATAL: $filename~: $!\n";
784	}	1199	}
785	} else {	1200	} else {
786	aio_unlink $filename;	1201	aio_unlink $filename;
787	aio_unlink "$filename.pst";	1202	aio_unlink "$filename.pst";
788	}	1203	}
789
790	#d##TODO# nuke non .map-files if exist
791	if ($filename =~ s/\.map$//) {
792	aio_unlink $filename;
793	aio_unlink "$filename.pst";
794	}
795	}	1204	};
796	}	1205	}
797		1206
798	sub object_freezer_as_string {	1207	sub object_freezer_as_string {
799	my ($rdata, $objs) = @_;	1208	my ($rdata, $objs) = @_;
800		1209
…		…
805		1214
806	sub object_thawer_load {	1215	sub object_thawer_load {
807	my ($filename) = @_;	1216	my ($filename) = @_;
808		1217
809	my ($data, $av);	1218	my ($data, $av);
810
811	#d#TODO remove .map if file does not exist
812	aio_stat $filename and $filename =~ s/\.map$//;
813		1219
814	(aio_load $filename, $data) >= 0	1220	(aio_load $filename, $data) >= 0
815	or return;	1221	or return;
816		1222
817	unless (aio_stat "$filename.pst") {	1223	unless (aio_stat "$filename.pst") {
818	(aio_load "$filename.pst", $av) >= 0	1224	(aio_load "$filename.pst", $av) >= 0
819	or return;	1225	or return;
		1226
820	$av = eval { (Storable::thaw $av)->{objs} };	1227	my $st = eval { Coro::Storable::thaw $av };
		1228	$av = $st->{objs};
821	}	1229	}
822		1230
		1231	utf8::decode (my $decname = $filename);
823	warn sprintf "loading %s (%d)\n",	1232	warn sprintf "loading %s (%d,%d)\n",
824	$filename, length $data, scalar @{$av || []};#d#	1233	$decname, length $data, scalar @{$av || []};
		1234
825	return ($data, $av);	1235	($data, $av)
826	}	1236	}
		1237
		1238	=head2 COMMAND CALLBACKS
		1239
		1240	=over 4
		1241
		1242	=cut
827		1243
828	#############################################################################	1244	#############################################################################
829	# command handling &c	1245	# command handling &c
830		1246
831	=item cf::register_command $name => \&callback($ob,$args);	1247	=item cf::register_command $name => \&callback($ob,$args);
…		…
844	push @{ $COMMAND{$name} }, [$caller, $cb];	1260	push @{ $COMMAND{$name} }, [$caller, $cb];
845	}	1261	}
846		1262
847	=item cf::register_extcmd $name => \&callback($pl,$packet);	1263	=item cf::register_extcmd $name => \&callback($pl,$packet);
848		1264
849	Register a callbackf ro execution when the client sends an extcmd packet.	1265	Register a callback for execution when the client sends an (synchronous)
		1266	extcmd packet. Ext commands will be processed in the order they are
		1267	received by the server, like other user commands. The first argument is
		1268	the logged-in player. Ext commands can only be processed after a player
		1269	has logged in successfully.
850		1270
851	If the callback returns something, it is sent back as if reply was being	1271	If the callback returns something, it is sent back as if reply was being
852	called.	1272	called.
853		1273
		1274	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1275
		1276	Register a callback for execution when the client sends an (asynchronous)
		1277	exticmd packet. Exti commands are processed by the server as soon as they
		1278	are received, i.e. out of order w.r.t. other commands. The first argument
		1279	is a client socket. Exti commands can be received anytime, even before
		1280	log-in.
		1281
		1282	If the callback returns something, it is sent back as if reply was being
		1283	called.
		1284
854	=cut	1285	=cut
855		1286
856	sub register_extcmd {	1287	sub register_extcmd {
857	my ($name, $cb) = @_;	1288	my ($name, $cb) = @_;
858		1289
859	$EXTCMD{$name} = $cb;	1290	$EXTCMD{$name} = $cb;
860	}	1291	}
		1292
		1293	sub register_exticmd {
		1294	my ($name, $cb) = @_;
		1295
		1296	$EXTICMD{$name} = $cb;
		1297	}
		1298
		1299	use File::Glob ();
861		1300
862	cf::player->attach (	1301	cf::player->attach (
863	on_command => sub {	1302	on_command => sub {
864	my ($pl, $name, $params) = @_;	1303	my ($pl, $name, $params) = @_;
865		1304
…		…
873	cf::override;	1312	cf::override;
874	},	1313	},
875	on_extcmd => sub {	1314	on_extcmd => sub {
876	my ($pl, $buf) = @_;	1315	my ($pl, $buf) = @_;
877		1316
878	my $msg = eval { from_json $buf };	1317	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
879		1318
880	if (ref $msg) {	1319	if (ref $msg) {
		1320	my ($type, $reply, @payload) =
		1321	"ARRAY" eq ref $msg
		1322	? @$msg
		1323	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1324
		1325	my @reply;
		1326
881	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1327	if (my $cb = $EXTCMD{$type}) {
882	if (my %reply = $cb->($pl, $msg)) {	1328	@reply = $cb->($pl, @payload);
883	$pl->ext_reply ($msg->{msgid}, %reply);
884	}
885	}	1329	}
		1330
		1331	$pl->ext_reply ($reply, @reply)
		1332	if $reply;
		1333
886	} else {	1334	} else {
887	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1335	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
888	}	1336	}
889		1337
890	cf::override;	1338	cf::override;
891	},	1339	},
892	);	1340	);
893		1341
		1342	# "readahead" all extensions
894	sub load_extension {	1343	sub cache_extensions {
895	my ($path) = @_;	1344	my $grp = IO::AIO::aio_group;
896		1345
897	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1346	add $grp IO::AIO::aio_readdir $LIBDIR, sub {
898	my $base = $1;	1347	for (grep /\.ext$/, @{$_[0]}) {
899	my $pkg = $1;	1348	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
900	$pkg =~ s/[^[:word:]]/_/g;
901	$pkg = "ext::$pkg";
902
903	warn "... loading '$path' into '$pkg'\n";
904
905	open my $fh, "<:utf8", $path
906	or die "$path: $!";
907
908	my $source =
909	"package $pkg; use strict; use utf8;\n"
910	. "#line 1 \"$path\"\n{\n"
911	. (do { local $/; <$fh> })
912	. "\n};\n1";
913
914	unless (eval $source) {
915	my $msg = $@ ? "$path: $@\n"
916	: "extension disabled.\n";
917	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
918	warn $@;
919	warn "mandatory extension failed to load, exiting.\n";
920	exit 1;
921	}	1349	}
922	die $@;
923	}	1350	};
924		1351
925	push @EXTS, $pkg;	1352	$grp
926	}	1353	}
927		1354
928	sub load_extensions {	1355	sub load_extensions {
		1356	cf::sync_job {
		1357	my %todo;
		1358
929	for my $ext (<$LIBDIR/*.ext>) {	1359	for my $path (<$LIBDIR/*.ext>) {
930	next unless -r $ext;	1360	next unless -r $path;
931	eval {	1361
932	load_extension $ext;	1362	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1363	my $base = $1;
		1364	my $pkg = $1;
		1365	$pkg =~ s/[^[:word:]]/_/g;
		1366	$pkg = "ext::$pkg";
		1367
		1368	open my $fh, "<:utf8", $path
		1369	or die "$path: $!";
		1370
		1371	my $source = do { local $/; <$fh> };
		1372
		1373	my %ext = (
		1374	path => $path,
		1375	base => $base,
		1376	pkg => $pkg,
		1377	);
		1378
		1379	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1380	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1381
		1382	$ext{source} =
		1383	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1384	. "#line 1 \"$path\"\n{\n"
		1385	. $source
		1386	. "\n};\n1";
		1387
		1388	$todo{$base} = \%ext;
		1389	}
		1390
		1391	my %done;
		1392	while (%todo) {
		1393	my $progress;
		1394
		1395	while (my ($k, $v) = each %todo) {
		1396	for (split /,\s*/, $v->{meta}{depends}) {
		1397	goto skip
		1398	unless exists $done{$_};
		1399	}
		1400
		1401	warn "... loading '$k' into '$v->{pkg}'\n";
		1402
		1403	unless (eval $v->{source}) {
		1404	my $msg = $@ ? "$v->{path}: $@\n"
		1405	: "$v->{base}: extension inactive.\n";
		1406
		1407	if (exists $v->{meta}{mandatory}) {
		1408	warn $msg;
		1409	cf::cleanup "mandatory extension failed to load, exiting.";
		1410	}
		1411
		1412	warn $msg;
		1413	}
		1414
		1415	$done{$k} = delete $todo{$k};
		1416	push @EXTS, $v->{pkg};
		1417	$progress = 1;
933	1	1418	}
934	} or warn "$ext not loaded: $@";	1419
		1420	skip:
		1421	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1422	unless $progress;
		1423	}
935	}	1424	};
936	}	1425	}
937		1426
938	#############################################################################	1427	#############################################################################
939		1428
		1429	=back
		1430
940	=head2 CORE EXTENSIONS	1431	=head2 CORE EXTENSIONS
941		1432
942	Functions and methods that extend core crossfire objects.	1433	Functions and methods that extend core deliantra objects.
943		1434
944	=cut	1435	=cut
945		1436
946	package cf::player;	1437	package cf::player;
947		1438
…		…
949		1440
950	=head3 cf::player	1441	=head3 cf::player
951		1442
952	=over 4	1443	=over 4
953		1444
		1445	=item cf::player::num_playing
		1446
		1447	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1448
		1449	=cut
		1450
		1451	sub num_playing {
		1452	scalar grep
		1453	$_->ob->map
		1454	&& !$_->hidden
		1455	&& !$_->ob->flag (cf::FLAG_WIZ),
		1456	cf::player::list
		1457	}
		1458
954	=item cf::player::find $login	1459	=item cf::player::find $login
955		1460
956	Returns the given player object, loading it if necessary (might block).	1461	Returns the given player object, loading it if necessary (might block).
957		1462
958	=cut	1463	=cut
959		1464
960	sub playerdir($) {	1465	sub playerdir($) {
961	cf::localdir	1466	"$PLAYERDIR/"
962	. "/"
963	. cf::playerdir
964	. "/"
965	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1467	. (ref $_[0] ? $_[0]->ob->name : $_[0])
966	}	1468	}
967		1469
968	sub path($) {	1470	sub path($) {
969	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1471	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
970		1472
971	(playerdir $login) . "/$login.pl"	1473	(playerdir $login) . "/playerdata"
972	}	1474	}
973		1475
974	sub find_active($) {	1476	sub find_active($) {
975	$cf::PLAYER{$_[0]}	1477	$cf::PLAYER{$_[0]}
976	and $cf::PLAYER{$_[0]}->active	1478	and $cf::PLAYER{$_[0]}->active
…		…
979		1481
980	sub exists($) {	1482	sub exists($) {
981	my ($login) = @_;	1483	my ($login) = @_;
982		1484
983	$cf::PLAYER{$login}	1485	$cf::PLAYER{$login}
984	or cf::sync_job { !aio_stat path $login }	1486	or !aio_stat path $login
985	}	1487	}
986		1488
987	sub find($) {	1489	sub find($) {
988	return $cf::PLAYER{$_[0]} || do {	1490	return $cf::PLAYER{$_[0]} || do {
989	my $login = $_[0];	1491	my $login = $_[0];
990		1492
991	my $guard = cf::lock_acquire "user_find:$login";	1493	my $guard = cf::lock_acquire "user_find:$login";
992		1494
993	$cf::PLAYER{$_[0]} || do {	1495	$cf::PLAYER{$_[0]} || do {
994	my $pl = load_pl path $login	1496	# rename old playerfiles to new ones
		1497	#TODO: remove when no longer required
		1498	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1499	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1500	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1501	aio_unlink +(playerdir $login) . "/$login.pl";
		1502
		1503	my $f = new_from_file cf::object::thawer path $login
995	or return;	1504	or return;
		1505
		1506	my $pl = cf::player::load_pl $f
		1507	or return;
		1508
		1509	local $cf::PLAYER_LOADING{$login} = $pl;
		1510	$f->resolve_delayed_derefs;
996	$cf::PLAYER{$login} = $pl	1511	$cf::PLAYER{$login} = $pl
997	}	1512	}
998	}	1513	}
999	}	1514	}
1000		1515
…		…
1009	return if $pl->{deny_save};	1524	return if $pl->{deny_save};
1010		1525
1011	aio_mkdir playerdir $pl, 0770;	1526	aio_mkdir playerdir $pl, 0770;
1012	$pl->{last_save} = $cf::RUNTIME;	1527	$pl->{last_save} = $cf::RUNTIME;
1013		1528
		1529	cf::get_slot 0.01;
		1530
1014	$pl->save_pl ($path);	1531	$pl->save_pl ($path);
1015	Coro::cede;	1532	cf::cede_to_tick;
1016	}	1533	}
1017		1534
1018	sub new($) {	1535	sub new($) {
1019	my ($login) = @_;	1536	my ($login) = @_;
1020		1537
…		…
1026	$cf::PLAYER{$login} = $self;	1543	$cf::PLAYER{$login} = $self;
1027		1544
1028	$self	1545	$self
1029	}	1546	}
1030		1547
		1548	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1549
		1550	=cut
		1551
		1552	sub send_msg {
		1553	my $ns = shift->ns
		1554	or return;
		1555	$ns->send_msg (@_);
		1556	}
		1557
1031	=item $pl->quit_character	1558	=item $pl->quit_character
1032		1559
1033	Nukes the player without looking back. If logged in, the connection will	1560	Nukes the player without looking back. If logged in, the connection will
1034	be destroyed. May block for a long time.	1561	be destroyed. May block for a long time.
1035		1562
1036	=cut	1563	=cut
1037		1564
1038	sub quit_character {	1565	sub quit_character {
1039	my ($pl) = @_;	1566	my ($pl) = @_;
1040		1567
		1568	my $name = $pl->ob->name;
		1569
1041	$pl->{deny_save} = 1;	1570	$pl->{deny_save} = 1;
1042	$pl->password ("*"); # this should lock out the player until we nuked the dir	1571	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1043		1572
1044	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1573	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1045	$pl->deactivate;	1574	$pl->deactivate;
		1575	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1576	$pl->ob->check_score;
1046	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1577	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1047	$pl->ns->destroy if $pl->ns;	1578	$pl->ns->destroy if $pl->ns;
1048		1579
1049	my $path = playerdir $pl;	1580	my $path = playerdir $pl;
1050	my $temp = "$path~$cf::RUNTIME~deleting~";	1581	my $temp = "$path~$cf::RUNTIME~deleting~";
1051	aio_rename $path, $temp;	1582	aio_rename $path, $temp;
1052	delete $cf::PLAYER{$pl->ob->name};	1583	delete $cf::PLAYER{$pl->ob->name};
1053	$pl->destroy;	1584	$pl->destroy;
		1585
		1586	my $prefix = qr<^~\Q$name\E/>;
		1587
		1588	# nuke player maps
		1589	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1590
1054	IO::AIO::aio_rmtree $temp;	1591	IO::AIO::aio_rmtree $temp;
		1592	}
		1593
		1594	=item $pl->kick
		1595
		1596	Kicks a player out of the game. This destroys the connection.
		1597
		1598	=cut
		1599
		1600	sub kick {
		1601	my ($pl, $kicker) = @_;
		1602
		1603	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1604	$pl->killer ("kicked");
		1605	$pl->ns->destroy;
1055	}	1606	}
1056		1607
1057	=item cf::player::list_logins	1608	=item cf::player::list_logins
1058		1609
1059	Returns am arrayref of all valid playernames in the system, can take a	1610	Returns am arrayref of all valid playernames in the system, can take a
1060	while and may block, so not sync_job-capable, ever.	1611	while and may block, so not sync_job-capable, ever.
1061		1612
1062	=cut	1613	=cut
1063		1614
1064	sub list_logins {	1615	sub list_logins {
1065	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1616	my $dirs = aio_readdir $PLAYERDIR
1066	or return [];	1617	or return [];
1067		1618
1068	my @logins;	1619	my @logins;
1069		1620
1070	for my $login (@$dirs) {	1621	for my $login (@$dirs) {
		1622	my $path = path $login;
		1623
		1624	# a .pst is a dead give-away for a valid player
		1625	# if no pst file found, open and chekc for blocked users
		1626	if (aio_stat "$path.pst") {
1071	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1627	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1072	aio_read $fh, 0, 512, my $buf, 0 or next;	1628	aio_read $fh, 0, 512, my $buf, 0 or next;
1073	$buf !~ /^password -------------$/m or next; # official not-valid tag	1629	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1630	}
1074		1631
1075	utf8::decode $login;	1632	utf8::decode $login;
1076	push @logins, $login;	1633	push @logins, $login;
1077	}	1634	}
1078		1635
…		…
1105	}	1662	}
1106		1663
1107	\@paths	1664	\@paths
1108	}	1665	}
1109		1666
		1667	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1668
		1669	Expand deliantra pod fragments into protocol xml.
		1670
1110	=item $player->ext_reply ($msgid, $msgtype, %msg)	1671	=item $player->ext_reply ($msgid, @msg)
1111		1672
1112	Sends an ext reply to the player.	1673	Sends an ext reply to the player.
1113		1674
1114	=cut	1675	=cut
1115		1676
1116	sub ext_reply($$$%) {	1677	sub ext_reply($$@) {
1117	my ($self, $id, %msg) = @_;	1678	my ($self, $id, @msg) = @_;
1118		1679
1119	$msg{msgid} = $id;	1680	$self->ns->ext_reply ($id, @msg)
1120
1121	$self->send ("ext " . cf::to_json \%msg);
1122	}	1681	}
1123		1682
1124	package cf;	1683	=item $player->ext_msg ($type, @msg)
		1684
		1685	Sends an ext event to the client.
		1686
		1687	=cut
		1688
		1689	sub ext_msg($$@) {
		1690	my ($self, $type, @msg) = @_;
		1691
		1692	$self->ns->ext_msg ($type, @msg);
		1693	}
		1694
		1695	=head3 cf::region
		1696
		1697	=over 4
		1698
		1699	=cut
		1700
		1701	package cf::region;
		1702
		1703	=item cf::region::find_by_path $path
		1704
		1705	Tries to decuce the likely region for a map knowing only its path.
		1706
		1707	=cut
		1708
		1709	sub find_by_path($) {
		1710	my ($path) = @_;
		1711
		1712	my ($match, $specificity);
		1713
		1714	for my $region (list) {
		1715	if ($region->{match} && $path =~ $region->{match}) {
		1716	($match, $specificity) = ($region, $region->specificity)
		1717	if $region->specificity > $specificity;
		1718	}
		1719	}
		1720
		1721	$match
		1722	}
1125		1723
1126	=back	1724	=back
1127
1128		1725
1129	=head3 cf::map	1726	=head3 cf::map
1130		1727
1131	=over 4	1728	=over 4
1132		1729
…		…
1144	our $MAX_RESET = 3600;	1741	our $MAX_RESET = 3600;
1145	our $DEFAULT_RESET = 3000;	1742	our $DEFAULT_RESET = 3000;
1146		1743
1147	sub generate_random_map {	1744	sub generate_random_map {
1148	my ($self, $rmp) = @_;	1745	my ($self, $rmp) = @_;
		1746
		1747	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1748
1149	# mit "rum" bekleckern, nicht	1749	# mit "rum" bekleckern, nicht
1150	$self->_create_random_map (	1750	$self->_create_random_map (
1151	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1751	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1152	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1752	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1153	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1753	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1187	my ($self, $merge) = @_;	1787	my ($self, $merge) = @_;
1188		1788
1189	# we have to keep some variables in memory intact	1789	# we have to keep some variables in memory intact
1190	local $self->{path};	1790	local $self->{path};
1191	local $self->{load_path};	1791	local $self->{load_path};
1192	local $self->{deny_save};
1193	local $self->{deny_reset};
1194		1792
1195	$self->SUPER::thawer_merge ($merge);	1793	$self->SUPER::thawer_merge ($merge);
1196	}	1794	}
1197		1795
1198	sub normalise {	1796	sub normalise {
…		…
1245	$self->init; # pass $1 etc.	1843	$self->init; # pass $1 etc.
1246	return $self;	1844	return $self;
1247	}	1845	}
1248	}	1846	}
1249		1847
1250	Carp::carp "unable to resolve path '$path' (base '$base').";	1848	Carp::cluck "unable to resolve path '$path' (base '$base').";
1251	()	1849	()
1252	}	1850	}
1253		1851
1254	sub init {	1852	sub init {
1255	my ($self) = @_;	1853	my ($self) = @_;
…		…
1270		1868
1271	# the original (read-only) location	1869	# the original (read-only) location
1272	sub load_path {	1870	sub load_path {
1273	my ($self) = @_;	1871	my ($self) = @_;
1274		1872
1275	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1873	"$MAPDIR/$self->{path}.map"
1276	}	1874	}
1277		1875
1278	# the temporary/swap location	1876	# the temporary/swap location
1279	sub save_path {	1877	sub save_path {
1280	my ($self) = @_;	1878	my ($self) = @_;
1281		1879
1282	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1880	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1283	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1881	"$TMPDIR/$path.map"
1284	}	1882	}
1285		1883
1286	# the unique path, undef == no special unique path	1884	# the unique path, undef == no special unique path
1287	sub uniq_path {	1885	sub uniq_path {
1288	my ($self) = @_;	1886	my ($self) = @_;
1289		1887
1290	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1888	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1291	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1889	"$UNIQUEDIR/$path"
1292	}	1890	}
1293		1891
1294	# and all this just because we cannot iterate over	1892	# and all this just because we cannot iterate over
1295	# all maps in C++...	1893	# all maps in C++...
1296	sub change_all_map_light {	1894	sub change_all_map_light {
…		…
1298		1896
1299	$_->change_map_light ($change)	1897	$_->change_map_light ($change)
1300	for grep $_->outdoor, values %cf::MAP;	1898	for grep $_->outdoor, values %cf::MAP;
1301	}	1899	}
1302		1900
		1901	sub decay_objects {
		1902	my ($self) = @_;
		1903
		1904	return if $self->{deny_reset};
		1905
		1906	$self->do_decay_objects;
		1907	}
		1908
1303	sub unlink_save {	1909	sub unlink_save {
1304	my ($self) = @_;	1910	my ($self) = @_;
1305		1911
1306	utf8::encode (my $save = $self->save_path);	1912	utf8::encode (my $save = $self->save_path);
1307	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1913	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1308	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1914	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1309
1310	#d#TODO remove .map and also nuke
1311	$save =~ s/\.map// or return;#d#
1312	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1313	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1314	}	1915	}
1315		1916
1316	sub load_header_from($) {	1917	sub load_header_from($) {
1317	my ($self, $path) = @_;	1918	my ($self, $path) = @_;
1318		1919
1319	utf8::encode $path;	1920	utf8::encode $path;
1320	#aio_open $path, O_RDONLY, 0	1921	my $f = new_from_file cf::object::thawer $path
1321	# or return;
1322
1323	$self->_load_header ($path)
1324	or return;	1922	or return;
		1923
		1924	$self->_load_header ($f)
		1925	or return;
		1926
		1927	local $MAP_LOADING{$self->{path}} = $self;
		1928	$f->resolve_delayed_derefs;
1325		1929
1326	$self->{load_path} = $path;	1930	$self->{load_path} = $path;
1327		1931
1328	1	1932	1
1329	}	1933	}
…		…
1368	$self->load_header_orig	1972	$self->load_header_orig
1369	or return;	1973	or return;
1370	$self->prepare_orig;	1974	$self->prepare_orig;
1371	}	1975	}
1372		1976
		1977	$self->{deny_reset} = 1
		1978	if $self->no_reset;
		1979
		1980	$self->default_region (cf::region::find_by_path $self->{path})
		1981	unless $self->default_region;
		1982
1373	1	1983	1
1374	}	1984	}
1375		1985
1376	sub find;	1986	sub find;
1377	sub find {	1987	sub find {
1378	my ($path, $origin) = @_;	1988	my ($path, $origin) = @_;
1379		1989
1380	$path = normalise $path, $origin && $origin->path;	1990	$path = normalise $path, $origin && $origin->path;
1381		1991
		1992	cf::lock_wait "map_data:$path";#d#remove
1382	cf::lock_wait "map_find:$path";	1993	cf::lock_wait "map_find:$path";
1383		1994
1384	$cf::MAP{$path} || do {	1995	$cf::MAP{$path} || do {
		1996	my $guard1 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1385	my $guard = cf::lock_acquire "map_find:$path";	1997	my $guard2 = cf::lock_acquire "map_find:$path";
		1998
1386	my $map = new_from_path cf::map $path	1999	my $map = new_from_path cf::map $path
1387	or return;	2000	or return;
1388		2001
1389	$map->{last_save} = $cf::RUNTIME;	2002	$map->{last_save} = $cf::RUNTIME;
1390		2003
1391	$map->load_header	2004	$map->load_header
1392	or return;	2005	or return;
1393		2006
1394	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2007	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1395	# doing this can freeze the server in a sync job, obviously	2008	# doing this can freeze the server in a sync job, obviously
1396	#$cf::WAIT_FOR_TICK->wait;	2009	#$cf::WAIT_FOR_TICK->wait;
		2010	undef $guard2;
		2011	undef $guard1;
1397	$map->reset;	2012	$map->reset;
1398	undef $guard;
1399	return find $path;	2013	return find $path;
1400	}	2014	}
1401		2015
1402	$cf::MAP{$path} = $map	2016	$cf::MAP{$path} = $map
1403	}	2017	}
…		…
1410	my ($self) = @_;	2024	my ($self) = @_;
1411		2025
1412	local $self->{deny_reset} = 1; # loading can take a long time	2026	local $self->{deny_reset} = 1; # loading can take a long time
1413		2027
1414	my $path = $self->{path};	2028	my $path = $self->{path};
		2029
		2030	{
1415	my $guard = cf::lock_acquire "map_load:$path";	2031	my $guard = cf::lock_acquire "map_data:$path";
1416		2032
		2033	return unless $self->valid;
1417	return if $self->in_memory != cf::MAP_SWAPPED;	2034	return unless $self->in_memory == cf::MAP_SWAPPED;
1418		2035
1419	$self->in_memory (cf::MAP_LOADING);	2036	$self->in_memory (cf::MAP_LOADING);
1420		2037
1421	$self->alloc;	2038	$self->alloc;
1422		2039
1423	$self->pre_load;	2040	$self->pre_load;
		2041	cf::cede_to_tick;
1424		2042
1425	$self->_load_objects ($self->{load_path}, 1)	2043	my $f = new_from_file cf::object::thawer $self->{load_path};
		2044	$f->skip_block;
		2045	$self->_load_objects ($f)
1426	or return;	2046	or return;
1427		2047
1428	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2048	$self->post_load_original
1429	if delete $self->{load_original};	2049	if delete $self->{load_original};
1430		2050
1431	if (my $uniq = $self->uniq_path) {	2051	if (my $uniq = $self->uniq_path) {
1432	utf8::encode $uniq;	2052	utf8::encode $uniq;
1433	if (aio_open $uniq, O_RDONLY, 0) {	2053	unless (aio_stat $uniq) {
		2054	if (my $f = new_from_file cf::object::thawer $uniq) {
1434	$self->clear_unique_items;	2055	$self->clear_unique_items;
1435	$self->_load_objects ($uniq, 0);	2056	$self->_load_objects ($f);
		2057	$f->resolve_delayed_derefs;
		2058	}
1436	}	2059	}
1437	}	2060	}
1438		2061
1439	Coro::cede;	2062	$f->resolve_delayed_derefs;
1440		2063
		2064	cf::cede_to_tick;
1441	# now do the right thing for maps	2065	# now do the right thing for maps
1442	$self->link_multipart_objects;	2066	$self->link_multipart_objects;
1443
1444	unless ($self->{deny_activate}) {
1445	$self->decay_objects;
1446	$self->fix_auto_apply;
1447	$self->update_buttons;
1448	Coro::cede;
1449	$self->set_darkness_map;
1450	$self->difficulty ($self->estimate_difficulty)	2067	$self->difficulty ($self->estimate_difficulty)
1451	unless $self->difficulty;	2068	unless $self->difficulty;
1452	Coro::cede;	2069	cf::cede_to_tick;
		2070
		2071	unless ($self->{deny_activate}) {
		2072	$self->decay_objects;
		2073	$self->fix_auto_apply;
		2074	$self->update_buttons;
		2075	cf::cede_to_tick;
		2076	$self->set_darkness_map;
		2077	cf::cede_to_tick;
1453	$self->activate;	2078	$self->activate;
		2079	}
		2080
		2081	$self->{last_save} = $cf::RUNTIME;
		2082	$self->last_access ($cf::RUNTIME);
		2083
		2084	$self->in_memory (cf::MAP_ACTIVE);
1454	}	2085	}
1455		2086
1456	$self->post_load;	2087	$self->post_load;
1457
1458	$self->in_memory (cf::MAP_IN_MEMORY);
1459	}	2088	}
1460		2089
1461	sub customise_for {	2090	sub customise_for {
1462	my ($self, $ob) = @_;	2091	my ($self, $ob) = @_;
1463		2092
1464	return find "~" . $ob->name . "/" . $self->{path}	2093	return find "~" . $ob->name . "/" . $self->{path}
1465	if $self->per_player;	2094	if $self->per_player;
1466		2095
		2096	# return find "?party/" . $ob->name . "/" . $self->{path}
		2097	# if $self->per_party;
		2098
1467	$self	2099	$self
1468	}	2100	}
1469		2101
1470	# find and load all maps in the 3x3 area around a map	2102	# find and load all maps in the 3x3 area around a map
1471	sub load_diag {	2103	sub load_neighbours {
1472	my ($map) = @_;	2104	my ($map) = @_;
1473		2105
1474	my @diag; # diagonal neighbours	2106	my @neigh; # diagonal neighbours
1475		2107
1476	for (0 .. 3) {	2108	for (0 .. 3) {
1477	my $neigh = $map->tile_path ($_)	2109	my $neigh = $map->tile_path ($_)
1478	or next;	2110	or next;
1479	$neigh = find $neigh, $map	2111	$neigh = find $neigh, $map
1480	or next;	2112	or next;
1481	$neigh->load;	2113	$neigh->load;
1482		2114
		2115	push @neigh,
1483	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2116	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1484	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2117	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1485	}	2118	}
1486		2119
1487	for (@diag) {	2120	for (grep defined $_->[0], @neigh) {
		2121	my ($path, $origin) = @$_;
1488	my $neigh = find @$_	2122	my $neigh = find $path, $origin
1489	or next;	2123	or next;
1490	$neigh->load;	2124	$neigh->load;
1491	}	2125	}
1492	}	2126	}
1493		2127
…		…
1498	}	2132	}
1499		2133
1500	sub do_load_sync {	2134	sub do_load_sync {
1501	my ($map) = @_;	2135	my ($map) = @_;
1502		2136
		2137	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2138	if $Coro::current == $Coro::main;
		2139
1503	cf::sync_job { $map->load };	2140	cf::sync_job { $map->load };
1504	}	2141	}
1505		2142
1506	our %MAP_PREFETCH;	2143	our %MAP_PREFETCH;
1507	our $MAP_PREFETCHER = undef;	2144	our $MAP_PREFETCHER = undef;
1508		2145
1509	sub find_async {	2146	sub find_async {
1510	my ($path, $origin) = @_;	2147	my ($path, $origin, $load) = @_;
1511		2148
1512	$path = normalise $path, $origin && $origin->{path};	2149	$path = normalise $path, $origin && $origin->{path};
1513		2150
1514	if (my $map = $cf::MAP{$path}) {	2151	if (my $map = $cf::MAP{$path}) {
1515	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2152	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1516	}	2153	}
1517		2154
1518	undef $MAP_PREFETCH{$path};	2155	$MAP_PREFETCH{$path} |= $load;
		2156
1519	$MAP_PREFETCHER ||= cf::async {	2157	$MAP_PREFETCHER ||= cf::async {
		2158	$Coro::current->{desc} = "map prefetcher";
		2159
1520	while (%MAP_PREFETCH) {	2160	while (%MAP_PREFETCH) {
1521	for my $path (keys %MAP_PREFETCH) {	2161	while (my ($k, $v) = each %MAP_PREFETCH) {
1522	my $map = find $path	2162	if (my $map = find $k) {
1523	or next;
1524	$map->load;	2163	$map->load if $v;
		2164	}
1525		2165
1526	delete $MAP_PREFETCH{$path};	2166	delete $MAP_PREFETCH{$k};
1527	}	2167	}
1528	}	2168	}
1529	undef $MAP_PREFETCHER;	2169	undef $MAP_PREFETCHER;
1530	};	2170	};
1531	$MAP_PREFETCHER->prio (6);	2171	$MAP_PREFETCHER->prio (6);
…		…
1534	}	2174	}
1535		2175
1536	sub save {	2176	sub save {
1537	my ($self) = @_;	2177	my ($self) = @_;
1538		2178
1539	my $lock = cf::lock_acquire "map_data:" . $self->path;	2179	my $lock = cf::lock_acquire "map_data:$self->{path}";
1540		2180
1541	$self->{last_save} = $cf::RUNTIME;	2181	$self->{last_save} = $cf::RUNTIME;
1542		2182
1543	return unless $self->dirty;	2183	return unless $self->dirty;
1544		2184
…		…
1550	return if $self->{deny_save};	2190	return if $self->{deny_save};
1551		2191
1552	local $self->{last_access} = $self->last_access;#d#	2192	local $self->{last_access} = $self->last_access;#d#
1553		2193
1554	cf::async {	2194	cf::async {
		2195	$Coro::current->{desc} = "map player save";
1555	$_->contr->save for $self->players;	2196	$_->contr->save for $self->players;
1556	};	2197	};
		2198
		2199	cf::get_slot 0.02;
1557		2200
1558	if ($uniq) {	2201	if ($uniq) {
1559	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2202	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1560	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2203	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1561	} else {	2204	} else {
…		…
1567	my ($self) = @_;	2210	my ($self) = @_;
1568		2211
1569	# save first because save cedes	2212	# save first because save cedes
1570	$self->save;	2213	$self->save;
1571		2214
1572	my $lock = cf::lock_acquire "map_data:" . $self->path;	2215	my $lock = cf::lock_acquire "map_data:$self->{path}";
1573		2216
1574	return if $self->players;	2217	return if $self->players;
1575	return if $self->in_memory != cf::MAP_IN_MEMORY;	2218	return if $self->in_memory != cf::MAP_ACTIVE;
1576	return if $self->{deny_save};	2219	return if $self->{deny_save};
1577		2220
		2221	$self->in_memory (cf::MAP_SWAPPED);
		2222
		2223	$self->deactivate;
		2224	$_->clear_links_to ($self) for values %cf::MAP;
1578	$self->clear;	2225	$self->clear;
1579	$self->in_memory (cf::MAP_SWAPPED);
1580	}	2226	}
1581		2227
1582	sub reset_at {	2228	sub reset_at {
1583	my ($self) = @_;	2229	my ($self) = @_;
1584		2230
1585	# TODO: safety, remove and allow resettable per-player maps	2231	# TODO: safety, remove and allow resettable per-player maps
1586	return 1e99 if $self->isa ("ext::map_per_player");#d#
1587	return 1e99 if $self->{deny_reset};	2232	return 1e99 if $self->{deny_reset};
1588		2233
1589	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2234	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1590	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2235	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1591		2236
…		…
1602	my ($self) = @_;	2247	my ($self) = @_;
1603		2248
1604	my $lock = cf::lock_acquire "map_data:$self->{path}";	2249	my $lock = cf::lock_acquire "map_data:$self->{path}";
1605		2250
1606	return if $self->players;	2251	return if $self->players;
1607	return if $self->isa ("ext::map_per_player");#d#
1608		2252
1609	warn "resetting map ", $self->path;#d#	2253	warn "resetting map ", $self->path;
		2254
		2255	$self->in_memory (cf::MAP_SWAPPED);
		2256
		2257	# need to save uniques path
		2258	unless ($self->{deny_save}) {
		2259	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2260
		2261	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2262	if $uniq;
		2263	}
1610		2264
1611	delete $cf::MAP{$self->path};	2265	delete $cf::MAP{$self->path};
1612		2266
1613	$self->in_memory (cf::MAP_SWAPPED);	2267	$self->deactivate;
		2268	$_->clear_links_to ($self) for values %cf::MAP;
1614	$self->clear;	2269	$self->clear;
1615
1616	$_->clear_links_to ($self) for values %cf::MAP;
1617		2270
1618	$self->unlink_save;	2271	$self->unlink_save;
1619	$self->destroy;	2272	$self->destroy;
1620	}	2273	}
1621		2274
1622	my $nuke_counter = "aaaa";	2275	my $nuke_counter = "aaaa";
1623		2276
1624	sub nuke {	2277	sub nuke {
1625	my ($self) = @_;	2278	my ($self) = @_;
1626		2279
		2280	{
		2281	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2282
1627	delete $cf::MAP{$self->path};	2283	delete $cf::MAP{$self->path};
1628		2284
1629	$self->unlink_save;	2285	$self->unlink_save;
1630		2286
1631	bless $self, "cf::map";	2287	bless $self, "cf::map";
1632	delete $self->{deny_reset};	2288	delete $self->{deny_reset};
1633	$self->{deny_save} = 1;	2289	$self->{deny_save} = 1;
1634	$self->reset_timeout (1);	2290	$self->reset_timeout (1);
1635	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2291	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1636		2292
1637	$cf::MAP{$self->path} = $self;	2293	$cf::MAP{$self->path} = $self;
		2294	}
1638		2295
1639	$self->reset; # polite request, might not happen	2296	$self->reset; # polite request, might not happen
		2297	}
		2298
		2299	=item $maps = cf::map::tmp_maps
		2300
		2301	Returns an arrayref with all map paths of currently instantiated and saved
		2302	maps. May block.
		2303
		2304	=cut
		2305
		2306	sub tmp_maps() {
		2307	[
		2308	map {
		2309	utf8::decode $_;
		2310	/\.map$/
		2311	? normalise $_
		2312	: ()
		2313	} @{ aio_readdir $TMPDIR or [] }
		2314	]
		2315	}
		2316
		2317	=item $maps = cf::map::random_maps
		2318
		2319	Returns an arrayref with all map paths of currently instantiated and saved
		2320	random maps. May block.
		2321
		2322	=cut
		2323
		2324	sub random_maps() {
		2325	[
		2326	map {
		2327	utf8::decode $_;
		2328	/\.map$/
		2329	? normalise "?random/$_"
		2330	: ()
		2331	} @{ aio_readdir $RANDOMDIR or [] }
		2332	]
1640	}	2333	}
1641		2334
1642	=item cf::map::unique_maps	2335	=item cf::map::unique_maps
1643		2336
1644	Returns an arrayref of paths of all shared maps that have	2337	Returns an arrayref of paths of all shared maps that have
1645	instantiated unique items. May block.	2338	instantiated unique items. May block.
1646		2339
1647	=cut	2340	=cut
1648		2341
1649	sub unique_maps() {	2342	sub unique_maps() {
1650	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2343	[
1651	or return;	2344	map {
1652
1653	my @paths;
1654
1655	for (@$files) {
1656	utf8::decode $_;	2345	utf8::decode $_;
1657	next if /\.pst$/;	2346	s/\.map$//; # TODO future compatibility hack
1658	next unless /^$PATH_SEP/o;	2347	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1659		2348	? ()
1660	push @paths, cf::map::normalise $_;	2349	: normalise $_
		2350	} @{ aio_readdir $UNIQUEDIR or [] }
1661	}	2351	]
1662
1663	\@paths
1664	}	2352	}
1665
1666	package cf;
1667		2353
1668	=back	2354	=back
1669		2355
1670	=head3 cf::object	2356	=head3 cf::object
1671		2357
…		…
1675		2361
1676	=over 4	2362	=over 4
1677		2363
1678	=item $ob->inv_recursive	2364	=item $ob->inv_recursive
1679		2365
1680	Returns the inventory of the object _and_ their inventories, recursively.	2366	Returns the inventory of the object I<and> their inventories, recursively,
		2367	but I<not> the object itself.
1681		2368
1682	=cut	2369	=cut
1683		2370
1684	sub inv_recursive_;	2371	sub inv_recursive_;
1685	sub inv_recursive_ {	2372	sub inv_recursive_ {
…		…
1688		2375
1689	sub inv_recursive {	2376	sub inv_recursive {
1690	inv_recursive_ inv $_[0]	2377	inv_recursive_ inv $_[0]
1691	}	2378	}
1692		2379
		2380	=item $ref = $ob->ref
		2381
		2382	Creates and returns a persistent reference to an object that can be stored as a string.
		2383
		2384	=item $ob = cf::object::deref ($refstring)
		2385
		2386	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2387	even if the object actually exists. May block.
		2388
		2389	=cut
		2390
		2391	sub deref {
		2392	my ($ref) = @_;
		2393
		2394	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2395	my ($uuid, $name) = ($1, $2);
		2396	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2397	or return;
		2398	$pl->ob->uuid eq $uuid
		2399	or return;
		2400
		2401	$pl->ob
		2402	} else {
		2403	warn "$ref: cannot resolve object reference\n";
		2404	undef
		2405	}
		2406	}
		2407
1693	package cf;	2408	package cf;
1694		2409
1695	=back	2410	=back
1696		2411
1697	=head3 cf::object::player	2412	=head3 cf::object::player
…		…
1703	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2418	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1704	can be C<undef>. Does the right thing when the player is currently in a	2419	can be C<undef>. Does the right thing when the player is currently in a
1705	dialogue with the given NPC character.	2420	dialogue with the given NPC character.
1706		2421
1707	=cut	2422	=cut
		2423
		2424	our $SAY_CHANNEL = {
		2425	id => "say",
		2426	title => "Map",
		2427	reply => "say ",
		2428	tooltip => "Things said to and replied from npcs near you and other players on the same map only.",
		2429	};
		2430
		2431	our $CHAT_CHANNEL = {
		2432	id => "chat",
		2433	title => "Chat",
		2434	reply => "chat ",
		2435	tooltip => "Player chat and shouts, global to the server.",
		2436	};
1708		2437
1709	# rough implementation of a future "reply" method that works	2438	# rough implementation of a future "reply" method that works
1710	# with dialog boxes.	2439	# with dialog boxes.
1711	#TODO: the first argument must go, split into a $npc->reply_to ( method	2440	#TODO: the first argument must go, split into a $npc->reply_to ( method
1712	sub cf::object::player::reply($$$;$) {	2441	sub cf::object::player::reply($$$;$) {
…		…
1714		2443
1715	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2444	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1716		2445
1717	if ($self->{record_replies}) {	2446	if ($self->{record_replies}) {
1718	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2447	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2448
1719	} else {	2449	} else {
		2450	my $pl = $self->contr;
		2451
		2452	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2453	my $dialog = $pl->{npc_dialog};
		2454	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2455
		2456	} else {
1720	$msg = $npc->name . " says: $msg" if $npc;	2457	$msg = $npc->name . " says: $msg" if $npc;
1721	$self->message ($msg, $flags);	2458	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2459	}
1722	}	2460	}
		2461	}
		2462
		2463	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2464
		2465	=cut
		2466
		2467	sub cf::object::send_msg {
		2468	my $pl = shift->contr
		2469	or return;
		2470	$pl->send_msg (@_);
1723	}	2471	}
1724		2472
1725	=item $player_object->may ("access")	2473	=item $player_object->may ("access")
1726		2474
1727	Returns wether the given player is authorized to access resource "access"	2475	Returns wether the given player is authorized to access resource "access"
…		…
1740		2488
1741	=item $player_object->enter_link	2489	=item $player_object->enter_link
1742		2490
1743	Freezes the player and moves him/her to a special map (C<{link}>).	2491	Freezes the player and moves him/her to a special map (C<{link}>).
1744		2492
1745	The player should be reasonably safe there for short amounts of time. You	2493	The player should be reasonably safe there for short amounts of time (e.g.
1746	I<MUST> call C<leave_link> as soon as possible, though.	2494	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2495	though, as the palyer cannot control the character while it is on the link
		2496	map.
1747		2497
1748	Will never block.	2498	Will never block.
1749		2499
1750	=item $player_object->leave_link ($map, $x, $y)	2500	=item $player_object->leave_link ($map, $x, $y)
1751		2501
…		…
1774	$self->deactivate_recursive;	2524	$self->deactivate_recursive;
1775		2525
1776	return if UNIVERSAL::isa $self->map, "ext::map_link";	2526	return if UNIVERSAL::isa $self->map, "ext::map_link";
1777		2527
1778	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2528	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1779	if $self->map;	2529	if $self->map && $self->map->{path} ne "{link}";
1780		2530
1781	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2531	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1782	}	2532	}
1783		2533
1784	sub cf::object::player::leave_link {	2534	sub cf::object::player::leave_link {
1785	my ($self, $map, $x, $y) = @_;	2535	my ($self, $map, $x, $y) = @_;
		2536
		2537	return unless $self->contr->active;
1786		2538
1787	my $link_pos = delete $self->{_link_pos};	2539	my $link_pos = delete $self->{_link_pos};
1788		2540
1789	unless ($map) {	2541	unless ($map) {
1790	# restore original map position	2542	# restore original map position
…		…
1804	# use -1 or undef as default coordinates, not 0, 0	2556	# use -1 or undef as default coordinates, not 0, 0
1805	($x, $y) = ($map->enter_x, $map->enter_y)	2557	($x, $y) = ($map->enter_x, $map->enter_y)
1806	if $x <=0 && $y <= 0;	2558	if $x <=0 && $y <= 0;
1807		2559
1808	$map->load;	2560	$map->load;
1809	$map->load_diag;	2561	$map->load_neighbours;
1810		2562
1811	return unless $self->contr->active;	2563	return unless $self->contr->active;
		2564	$self->flag (cf::FLAG_DEBUG, 0);#d# temp
1812	$self->activate_recursive;	2565	$self->activate_recursive;
		2566
		2567	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1813	$self->enter_map ($map, $x, $y);	2568	$self->enter_map ($map, $x, $y);
1814	}	2569	}
1815		2570
1816	cf::player->attach (	2571	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1817	on_logout => sub {
1818	my ($pl) = @_;
1819		2572
1820	# abort map switching before logout	2573	Moves the player to the given map-path and coordinates by first freezing
1821	if ($pl->ob->{_link_pos}) {	2574	her, loading and preparing them map, calling the provided $check callback
1822	cf::sync_job {	2575	that has to return the map if sucecssful, and then unfreezes the player on
1823	$pl->ob->leave_link	2576	the new (success) or old (failed) map position. In either case, $done will
1824	};	2577	be called at the end of this process.
1825	}
1826	},
1827	on_login => sub {
1828	my ($pl) = @_;
1829		2578
1830	# try to abort aborted map switching on player login :)	2579	Note that $check will be called with a potentially non-loaded map, so if
1831	# should happen only on crashes	2580	it needs a loaded map it has to call C<< ->load >>.
1832	if ($pl->ob->{_link_pos}) {
1833	$pl->ob->enter_link;
1834	(async {
1835	# we need this sleep as the login has a concurrent enter_exit running
1836	# and this sleep increases chances of the player not ending up in scorn
1837	$pl->ob->reply (undef,
1838	"There was an internal problem at your last logout, "
1839	. "the server will try to bring you to your intended destination in a second.",
1840	cf::NDI_RED);
1841	Coro::Timer::sleep 1;
1842	$pl->ob->leave_link;
1843	})->prio (2);
1844	}
1845	},
1846	);
1847		2581
1848	=item $player_object->goto ($path, $x, $y)
1849
1850	=cut	2582	=cut
		2583
		2584	our $GOTOGEN;
1851		2585
1852	sub cf::object::player::goto {	2586	sub cf::object::player::goto {
1853	my ($self, $path, $x, $y) = @_;	2587	my ($self, $path, $x, $y, $check, $done) = @_;
		2588
		2589	# do generation counting so two concurrent goto's will be executed in-order
		2590	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1854		2591
1855	$self->enter_link;	2592	$self->enter_link;
1856		2593
1857	(async {	2594	(async {
		2595	$Coro::current->{desc} = "player::goto $path $x $y";
		2596
		2597	# *tag paths override both path and x|y
		2598	if ($path =~ /^\*(.*)$/) {
		2599	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2600	my $ob = $obs[rand @obs];
		2601
		2602	# see if we actually can go there
		2603	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2604	$ob = $obs[rand @obs];
		2605	} else {
		2606	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2607	}
		2608	# else put us there anyways for now #d#
		2609
		2610	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2611	} else {
		2612	($path, $x, $y) = (undef, undef, undef);
		2613	}
		2614	}
		2615
1858	my $map = eval {	2616	my $map = eval {
1859	my $map = cf::map::find $path;	2617	my $map = defined $path ? cf::map::find $path : undef;
		2618
		2619	if ($map) {
1860	$map = $map->customise_for ($self) if $map;	2620	$map = $map->customise_for ($self);
		2621	$map = $check->($map) if $check && $map;
		2622	} else {
		2623	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2624	}
		2625
1861	$map	2626	$map
		2627	};
		2628
		2629	if ($@) {
		2630	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2631	LOG llevError | logBacktrace, Carp::longmess $@;
1862	} or	2632	}
1863	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1864		2633
		2634	if ($gen == $self->{_goto_generation}) {
		2635	delete $self->{_goto_generation};
1865	$self->leave_link ($map, $x, $y);	2636	$self->leave_link ($map, $x, $y);
		2637	}
		2638
		2639	$done->() if $done;
1866	})->prio (1);	2640	})->prio (1);
1867	}	2641	}
1868		2642
1869	=item $player_object->enter_exit ($exit_object)	2643	=item $player_object->enter_exit ($exit_object)
1870		2644
…		…
1890	}	2664	}
1891		2665
1892	sub prepare_random_map {	2666	sub prepare_random_map {
1893	my ($exit) = @_;	2667	my ($exit) = @_;
1894		2668
1895	my $guard = cf::lock_acquire "exit_prepare:$exit";
1896
1897	# all this does is basically replace the /! path by	2669	# all this does is basically replace the /! path by
1898	# a new random map path (?random/...) with a seed	2670	# a new random map path (?random/...) with a seed
1899	# that depends on the exit object	2671	# that depends on the exit object
1900		2672
1901	my $rmp = parse_random_map_params $exit->msg;	2673	my $rmp = parse_random_map_params $exit->msg;
…		…
1903	if ($exit->map) {	2675	if ($exit->map) {
1904	$rmp->{region} = $exit->region->name;	2676	$rmp->{region} = $exit->region->name;
1905	$rmp->{origin_map} = $exit->map->path;	2677	$rmp->{origin_map} = $exit->map->path;
1906	$rmp->{origin_x} = $exit->x;	2678	$rmp->{origin_x} = $exit->x;
1907	$rmp->{origin_y} = $exit->y;	2679	$rmp->{origin_y} = $exit->y;
		2680
		2681	$exit->map->touch;
1908	}	2682	}
1909		2683
1910	$rmp->{random_seed} ||= $exit->random_seed;	2684	$rmp->{random_seed} ||= $exit->random_seed;
1911		2685
1912	my $data = cf::to_json $rmp;	2686	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1913	my $md5 = Digest::MD5::md5_hex $data;	2687	my $md5 = Digest::MD5::md5_hex $data;
1914	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2688	my $meta = "$RANDOMDIR/$md5.meta";
1915		2689
1916	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2690	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1917	aio_write $fh, 0, (length $data), $data, 0;	2691	aio_write $fh, 0, (length $data), $data, 0;
1918	undef $fh;	2692	undef $fh;
1919	aio_rename "$meta~", $meta;	2693	aio_rename "$meta~", $meta;
1920		2694
		2695	my $slaying = "?random/$md5";
		2696
		2697	if ($exit->valid) {
1921	$exit->slaying ("?random/$md5");	2698	$exit->slaying ("?random/$md5");
1922	$exit->msg (undef);	2699	$exit->msg (undef);
		2700	}
1923	}	2701	}
1924	}	2702	}
1925		2703
1926	sub cf::object::player::enter_exit {	2704	sub cf::object::player::enter_exit {
1927	my ($self, $exit) = @_;	2705	my ($self, $exit) = @_;
1928		2706
1929	return unless $self->type == cf::PLAYER;	2707	return unless $self->type == cf::PLAYER;
1930		2708
1931	if ($exit->slaying eq "/!") {
1932	#TODO: this should de-fi-ni-te-ly not be a sync-job
1933	cf::sync_job { prepare_random_map $exit };
1934	}
1935
1936	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1937	my $hp = $exit->stats->hp;
1938	my $sp = $exit->stats->sp;
1939
1940	$self->enter_link;	2709	$self->enter_link;
1941		2710
1942	(async {	2711	(async {
1943	$self->deactivate_recursive; # just to be sure	2712	$Coro::current->{desc} = "enter_exit";
		2713
1944	unless (eval {	2714	unless (eval {
		2715	$self->deactivate_recursive; # just to be sure
		2716
		2717	# random map handling
		2718	{
		2719	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2720
		2721	prepare_random_map $exit
		2722	if $exit->slaying eq "/!";
		2723	}
		2724
		2725	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2726	my $x = $exit->stats->hp;
		2727	my $y = $exit->stats->sp;
		2728
1945	$self->goto ($slaying, $hp, $sp);	2729	$self->goto ($map, $x, $y);
1946		2730
		2731	# if exit is damned, update players death & WoR home-position
		2732	$self->contr->savebed ($map, $x, $y)
		2733	if $exit->flag (cf::FLAG_DAMNED);
		2734
1947	1;	2735	1
1948	}) {	2736	}) {
1949	$self->message ("Something went wrong deep within the crossfire server. "	2737	$self->message ("Something went wrong deep within the deliantra server. "
1950	. "I'll try to bring you back to the map you were before. "	2738	. "I'll try to bring you back to the map you were before. "
1951	. "Please report this to the dungeon master!",	2739	. "Please report this to the dungeon master!",
1952	cf::NDI_UNIQUE | cf::NDI_RED);	2740	cf::NDI_UNIQUE | cf::NDI_RED);
1953		2741
1954	warn "ERROR in enter_exit: $@";	2742	warn "ERROR in enter_exit: $@";
1955	$self->leave_link;	2743	$self->leave_link;
1956	}	2744	}
1957	})->prio (1);	2745	})->prio (1);
…		…
1970		2758
1971	sub cf::client::send_drawinfo {	2759	sub cf::client::send_drawinfo {
1972	my ($self, $text, $flags) = @_;	2760	my ($self, $text, $flags) = @_;
1973		2761
1974	utf8::encode $text;	2762	utf8::encode $text;
1975	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2763	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1976	}	2764	}
1977		2765
		2766	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2767
		2768	Send a drawinfo or msg packet to the client, formatting the msg for the
		2769	client if neccessary. C<$type> should be a string identifying the type of
		2770	the message, with C<log> being the default. If C<$color> is negative, suppress
		2771	the message unless the client supports the msg packet.
		2772
		2773	=cut
		2774
		2775	# non-persistent channels (usually the info channel)
		2776	our %CHANNEL = (
		2777	"c/identify" => {
		2778	id => "infobox",
		2779	title => "Identify",
		2780	reply => undef,
		2781	tooltip => "Items recently identified",
		2782	},
		2783	"c/examine" => {
		2784	id => "infobox",
		2785	title => "Examine",
		2786	reply => undef,
		2787	tooltip => "Signs and other items you examined",
		2788	},
		2789	"c/book" => {
		2790	id => "infobox",
		2791	title => "Book",
		2792	reply => undef,
		2793	tooltip => "The contents of a note or book",
		2794	},
		2795	"c/lookat" => {
		2796	id => "infobox",
		2797	title => "Look",
		2798	reply => undef,
		2799	tooltip => "What you saw there",
		2800	},
		2801	"c/who" => {
		2802	id => "infobox",
		2803	title => "Players",
		2804	reply => undef,
		2805	tooltip => "Shows players who are currently online",
		2806	},
		2807	"c/body" => {
		2808	id => "infobox",
		2809	title => "Body Parts",
		2810	reply => undef,
		2811	tooltip => "Shows which body parts you posess and are available",
		2812	},
		2813	"c/skills" => {
		2814	id => "infobox",
		2815	title => "Skills",
		2816	reply => undef,
		2817	tooltip => "Shows your experience per skill and item power",
		2818	},
		2819	"c/uptime" => {
		2820	id => "infobox",
		2821	title => "Uptime",
		2822	reply => undef,
		2823	tooltip => "How long the server has been running since last restart",
		2824	},
		2825	"c/mapinfo" => {
		2826	id => "infobox",
		2827	title => "Map Info",
		2828	reply => undef,
		2829	tooltip => "Information related to the maps",
		2830	},
		2831	"c/party" => {
		2832	id => "party",
		2833	title => "Party",
		2834	reply => "gsay ",
		2835	tooltip => "Messages and chat related to your party",
		2836	},
		2837	);
		2838
		2839	sub cf::client::send_msg {
		2840	my ($self, $channel, $msg, $color, @extra) = @_;
		2841
		2842	$msg = $self->pl->expand_cfpod ($msg)
		2843	unless $color & cf::NDI_VERBATIM;
		2844
		2845	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2846
		2847	# check predefined channels, for the benefit of C
		2848	if ($CHANNEL{$channel}) {
		2849	$channel = $CHANNEL{$channel};
		2850
		2851	$self->ext_msg (channel_info => $channel)
		2852	if $self->can_msg;
		2853
		2854	$channel = $channel->{id};
		2855
		2856	} elsif (ref $channel) {
		2857	# send meta info to client, if not yet sent
		2858	unless (exists $self->{channel}{$channel->{id}}) {
		2859	$self->{channel}{$channel->{id}} = $channel;
		2860	$self->ext_msg (channel_info => $channel)
		2861	if $self->can_msg;
		2862	}
		2863
		2864	$channel = $channel->{id};
		2865	}
		2866
		2867	return unless @extra || length $msg;
		2868
		2869	if ($self->can_msg) {
		2870	# default colour, mask it out
		2871	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2872	if $color & cf::NDI_DEF;
		2873
		2874	my $pkt = "msg "
		2875	. $self->{json_coder}->encode (
		2876	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2877	);
		2878
		2879	# try lzf for large packets
		2880	$pkt = "lzf " . Compress::LZF::compress $pkt
		2881	if 1024 <= length $pkt and $self->{can_lzf};
		2882
		2883	# split very large packets
		2884	if (8192 < length $pkt and $self->{can_lzf}) {
		2885	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2886	$pkt = "frag";
		2887	}
		2888
		2889	$self->send_packet ($pkt);
		2890	} else {
		2891	if ($color >= 0) {
		2892	# replace some tags by gcfclient-compatible ones
		2893	for ($msg) {
		2894	1 while
		2895	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2896	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2897	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2898	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2899	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2900	}
		2901
		2902	$color &= cf::NDI_COLOR_MASK;
		2903
		2904	utf8::encode $msg;
		2905
		2906	if (0 && $msg =~ /\[/) {
		2907	# COMMAND/INFO
		2908	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2909	} else {
		2910	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2911	$self->send_packet ("drawinfo $color $msg")
		2912	}
		2913	}
		2914	}
		2915	}
		2916
		2917	=item $client->ext_msg ($type, @msg)
		2918
		2919	Sends an ext event to the client.
		2920
		2921	=cut
		2922
		2923	sub cf::client::ext_msg($$@) {
		2924	my ($self, $type, @msg) = @_;
		2925
		2926	if ($self->extcmd == 2) {
		2927	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2928	} elsif ($self->extcmd == 1) { # TODO: remove
		2929	push @msg, msgtype => "event_$type";
		2930	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2931	}
		2932	}
		2933
		2934	=item $client->ext_reply ($msgid, @msg)
		2935
		2936	Sends an ext reply to the client.
		2937
		2938	=cut
		2939
		2940	sub cf::client::ext_reply($$@) {
		2941	my ($self, $id, @msg) = @_;
		2942
		2943	if ($self->extcmd == 2) {
		2944	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2945	} elsif ($self->extcmd == 1) {
		2946	#TODO: version 1, remove
		2947	unshift @msg, msgtype => "reply", msgid => $id;
		2948	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2949	}
		2950	}
1978		2951
1979	=item $success = $client->query ($flags, "text", \&cb)	2952	=item $success = $client->query ($flags, "text", \&cb)
1980		2953
1981	Queues a query to the client, calling the given callback with	2954	Queues a query to the client, calling the given callback with
1982	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2955	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1983	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2956	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1984		2957
1985	Queries can fail, so check the return code. Or don't, as queries will become	2958	Queries can fail, so check the return code. Or don't, as queries will
1986	reliable at some point in the future.	2959	become reliable at some point in the future.
1987		2960
1988	=cut	2961	=cut
1989		2962
1990	sub cf::client::query {	2963	sub cf::client::query {
1991	my ($self, $flags, $text, $cb) = @_;	2964	my ($self, $flags, $text, $cb) = @_;
…		…
1999	utf8::encode $text;	2972	utf8::encode $text;
2000	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2973	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2001		2974
2002	$self->send_packet ($self->{query_queue}[0][0])	2975	$self->send_packet ($self->{query_queue}[0][0])
2003	if @{ $self->{query_queue} } == 1;	2976	if @{ $self->{query_queue} } == 1;
		2977
		2978	1
2004	}	2979	}
2005		2980
2006	cf::client->attach (	2981	cf::client->attach (
		2982	on_connect => sub {
		2983	my ($ns) = @_;
		2984
		2985	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2986	},
2007	on_reply => sub {	2987	on_reply => sub {
2008	my ($ns, $msg) = @_;	2988	my ($ns, $msg) = @_;
2009		2989
2010	# this weird shuffling is so that direct followup queries	2990	# this weird shuffling is so that direct followup queries
2011	# get handled first	2991	# get handled first
…		…
2023	} else {	3003	} else {
2024	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3004	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2025	}	3005	}
2026	}	3006	}
2027	},	3007	},
		3008	on_exticmd => sub {
		3009	my ($ns, $buf) = @_;
		3010
		3011	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3012
		3013	if (ref $msg) {
		3014	my ($type, $reply, @payload) =
		3015	"ARRAY" eq ref $msg
		3016	? @$msg
		3017	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3018
		3019	my @reply;
		3020
		3021	if (my $cb = $EXTICMD{$type}) {
		3022	@reply = $cb->($ns, @payload);
		3023	}
		3024
		3025	$ns->ext_reply ($reply, @reply)
		3026	if $reply;
		3027
		3028	} else {
		3029	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3030	}
		3031
		3032	cf::override;
		3033	},
2028	);	3034	);
2029		3035
2030	=item $client->async (\&cb)	3036	=item $client->async (\&cb)
2031		3037
2032	Create a new coroutine, running the specified callback. The coroutine will	3038	Create a new coroutine, running the specified callback. The coroutine will
…		…
2073	our $safe = new Safe "safe";	3079	our $safe = new Safe "safe";
2074	our $safe_hole = new Safe::Hole;	3080	our $safe_hole = new Safe::Hole;
2075		3081
2076	$SIG{FPE} = 'IGNORE';	3082	$SIG{FPE} = 'IGNORE';
2077		3083
2078	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3084	$safe->permit_only (Opcode::opset qw(
		3085	:base_core :base_mem :base_orig :base_math
		3086	grepstart grepwhile mapstart mapwhile
		3087	sort time
		3088	));
2079		3089
2080	# here we export the classes and methods available to script code	3090	# here we export the classes and methods available to script code
2081		3091
2082	=pod	3092	=pod
2083		3093
2084	The following fucntions and emthods are available within a safe environment:	3094	The following functions and methods are available within a safe environment:
2085		3095
2086	cf::object contr pay_amount pay_player map	3096	cf::object
		3097	contr pay_amount pay_player map x y force_find force_add destroy
		3098	insert remove name archname title slaying race decrease split
		3099
2087	cf::object::player player	3100	cf::object::player
2088	cf::player peaceful	3101	player
2089	cf::map trigger	3102
		3103	cf::player
		3104	peaceful
		3105
		3106	cf::map
		3107	trigger
2090		3108
2091	=cut	3109	=cut
2092		3110
2093	for (	3111	for (
2094	["cf::object" => qw(contr pay_amount pay_player map)],	3112	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3113	insert remove inv nrof name archname title slaying race
		3114	decrease split destroy change_exp)],
2095	["cf::object::player" => qw(player)],	3115	["cf::object::player" => qw(player)],
2096	["cf::player" => qw(peaceful)],	3116	["cf::player" => qw(peaceful)],
2097	["cf::map" => qw(trigger)],	3117	["cf::map" => qw(trigger)],
2098	) {	3118	) {
2099	no strict 'refs';	3119	no strict 'refs';
…		…
2170	=back	3190	=back
2171		3191
2172	=cut	3192	=cut
2173		3193
2174	#############################################################################	3194	#############################################################################
2175
2176	=head2 EXTENSION DATABASE SUPPORT
2177
2178	Crossfire maintains a very simple database for extension use. It can
2179	currently store anything that can be serialised using Storable, which
2180	excludes objects.
2181
2182	The parameter C<$family> should best start with the name of the extension
2183	using it, it should be unique.
2184
2185	=over 4
2186
2187	=item $hashref = cf::db_get $family
2188
2189	Return a hashref for use by the extension C<$family>, which can be
2190	modified. After modifications, you have to call C<cf::db_dirty> or
2191	C<cf::db_sync>.
2192
2193	=item $value = cf::db_get $family => $key
2194
2195	Returns a single value from the database
2196
2197	=item cf::db_put $family => $hashref
2198
2199	Stores the given family hashref into the database. Updates are delayed, if
2200	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2201
2202	=item cf::db_put $family => $key => $value
2203
2204	Stores the given C<$value> in the family hash. Updates are delayed, if you
2205	want the data to be synced to disk immediately, use C<cf::db_sync>.
2206
2207	=item cf::db_dirty
2208
2209	Marks the database as dirty, to be updated at a later time.
2210
2211	=item cf::db_sync
2212
2213	Immediately write the database to disk I<if it is dirty>.
2214
2215	=cut
2216
2217	our $DB;
2218
2219	{
2220	my $path = cf::localdir . "/database.pst";
2221
2222	sub db_load() {
2223	$DB = stat $path ? Storable::retrieve $path : { };
2224	}
2225
2226	my $pid;
2227
2228	sub db_save() {
2229	waitpid $pid, 0 if $pid;
2230	if (0 == ($pid = fork)) {
2231	$DB->{_meta}{version} = 1;
2232	Storable::nstore $DB, "$path~";
2233	rename "$path~", $path;
2234	cf::_exit 0 if defined $pid;
2235	}
2236	}
2237
2238	my $dirty;
2239
2240	sub db_sync() {
2241	db_save if $dirty;
2242	undef $dirty;
2243	}
2244
2245	my $idle = Event->idle (
2246	reentrant => 0,
2247	min => 10,
2248	max => 20,
2249	repeat => 0,
2250	data => WF_AUTOCANCEL,
2251	cb => \&db_sync,
2252	);
2253
2254	sub db_dirty() {
2255	$dirty = 1;
2256	$idle->start;
2257	}
2258
2259	sub db_get($;$) {
2260	@_ >= 2
2261	? $DB->{$_[0]}{$_[1]}
2262	: ($DB->{$_[0]} ||= { })
2263	}
2264
2265	sub db_put($$;$) {
2266	if (@_ >= 3) {
2267	$DB->{$_[0]}{$_[1]} = $_[2];
2268	} else {
2269	$DB->{$_[0]} = $_[1];
2270	}
2271	db_dirty;
2272	}
2273
2274	cf::global->attach (
2275	prio => 10000,
2276	on_cleanup => sub {
2277	db_sync;
2278	},
2279	);
2280	}
2281
2282	#############################################################################
2283	# the server's init and main functions	3195	# the server's init and main functions
2284		3196
		3197	sub load_facedata($) {
		3198	my ($path) = @_;
		3199
		3200	# HACK to clear player env face cache, we need some signal framework
		3201	# for this (global event?)
		3202	%ext::player_env::MUSIC_FACE_CACHE = ();
		3203
		3204	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3205
		3206	warn "loading facedata from $path\n";
		3207
		3208	my $facedata;
		3209	0 < aio_load $path, $facedata
		3210	or die "$path: $!";
		3211
		3212	$facedata = Coro::Storable::thaw $facedata;
		3213
		3214	$facedata->{version} == 2
		3215	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3216
		3217	# patch in the exptable
		3218	$facedata->{resource}{"res/exp_table"} = {
		3219	type => FT_RSRC,
		3220	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3221	};
		3222	cf::cede_to_tick;
		3223
		3224	{
		3225	my $faces = $facedata->{faceinfo};
		3226
		3227	while (my ($face, $info) = each %$faces) {
		3228	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3229
		3230	cf::face::set_visibility $idx, $info->{visibility};
		3231	cf::face::set_magicmap $idx, $info->{magicmap};
		3232	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3233	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
		3234
		3235	cf::cede_to_tick;
		3236	}
		3237
		3238	while (my ($face, $info) = each %$faces) {
		3239	next unless $info->{smooth};
		3240
		3241	my $idx = cf::face::find $face
		3242	or next;
		3243
		3244	if (my $smooth = cf::face::find $info->{smooth}) {
		3245	cf::face::set_smooth $idx, $smooth;
		3246	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3247	} else {
		3248	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3249	}
		3250
		3251	cf::cede_to_tick;
		3252	}
		3253	}
		3254
		3255	{
		3256	my $anims = $facedata->{animinfo};
		3257
		3258	while (my ($anim, $info) = each %$anims) {
		3259	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3260	cf::cede_to_tick;
		3261	}
		3262
		3263	cf::anim::invalidate_all; # d'oh
		3264	}
		3265
		3266	{
		3267	# TODO: for gcfclient pleasure, we should give resources
		3268	# that gcfclient doesn't grok a >10000 face index.
		3269	my $res = $facedata->{resource};
		3270
		3271	while (my ($name, $info) = each %$res) {
		3272	if (defined $info->{type}) {
		3273	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3274	my $data;
		3275
		3276	if ($info->{type} & 1) {
		3277	# prepend meta info
		3278
		3279	my $meta = $enc->encode ({
		3280	name => $name,
		3281	%{ $info->{meta} || {} },
		3282	});
		3283
		3284	$data = pack "(w/a*)*", $meta, $info->{data};
		3285	} else {
		3286	$data = $info->{data};
		3287	}
		3288
		3289	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3290	cf::face::set_type $idx, $info->{type};
		3291	} else {
		3292	$RESOURCE{$name} = $info;
		3293	}
		3294
		3295	cf::cede_to_tick;
		3296	}
		3297	}
		3298
		3299	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3300
		3301	1
		3302	}
		3303
		3304	cf::global->attach (on_resource_update => sub {
		3305	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3306	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3307
		3308	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3309	my $sound = $soundconf->{compat}[$_]
		3310	or next;
		3311
		3312	my $face = cf::face::find "sound/$sound->[1]";
		3313	cf::sound::set $sound->[0] => $face;
		3314	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3315	}
		3316
		3317	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3318	my $face = cf::face::find "sound/$v";
		3319	cf::sound::set $k => $face;
		3320	}
		3321	}
		3322	});
		3323
		3324	register_exticmd fx_want => sub {
		3325	my ($ns, $want) = @_;
		3326
		3327	while (my ($k, $v) = each %$want) {
		3328	$ns->fx_want ($k, $v);
		3329	}
		3330	};
		3331
2285	sub load_resources {	3332	sub load_resource_file($) {
2286	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3333	my $guard = lock_acquire "load_resource_file";
		3334
		3335	my $status = load_resource_file_ $_[0];
		3336	get_slot 0.1, 100;
		3337	cf::arch::commit_load;
		3338
		3339	$status
		3340	}
		3341
		3342	sub reload_regions {
		3343	# HACK to clear player env face cache, we need some signal framework
		3344	# for this (global event?)
		3345	%ext::player_env::MUSIC_FACE_CACHE = ();
		3346
		3347	load_resource_file "$MAPDIR/regions"
2287	or die "unable to load regions file\n";#d#	3348	or die "unable to load regions file\n";
2288	}
2289		3349
2290	sub cfg_load {	3350	for (cf::region::list) {
		3351	$_->{match} = qr/$_->{match}/
		3352	if exists $_->{match};
		3353	}
		3354	}
		3355
		3356	sub reload_facedata {
		3357	load_facedata "$DATADIR/facedata"
		3358	or die "unable to load facedata\n";
		3359	}
		3360
		3361	sub reload_archetypes {
		3362	load_resource_file "$DATADIR/archetypes"
		3363	or die "unable to load archetypes\n";
		3364	}
		3365
		3366	sub reload_treasures {
		3367	load_resource_file "$DATADIR/treasures"
		3368	or die "unable to load treasurelists\n";
		3369	}
		3370
		3371	sub reload_resources {
		3372	warn "reloading resource files...\n";
		3373
		3374	reload_facedata;
		3375	reload_archetypes;
		3376	reload_regions;
		3377	reload_treasures;
		3378
		3379	warn "finished reloading resource files\n";
		3380	}
		3381
		3382	sub reload_config {
2291	open my $fh, "<:utf8", cf::confdir . "/config"	3383	open my $fh, "<:utf8", "$CONFDIR/config"
2292	or return;	3384	or return;
2293		3385
2294	local $/;	3386	local $/;
2295	*CFG = YAML::Syck::Load <$fh>;	3387	*CFG = YAML::Load <$fh>;
2296		3388
2297	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3389	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2298		3390
2299	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3391	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2300	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3392	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2306	};	3398	};
2307	warn $@ if $@;	3399	warn $@ if $@;
2308	}	3400	}
2309	}	3401	}
2310		3402
2311	sub init {	3403	sub pidfile() {
2312	load_resources;	3404	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3405	or die "$PIDFILE: $!";
		3406	flock $fh, &Fcntl::LOCK_EX
		3407	or die "$PIDFILE: flock: $!";
		3408	$fh
		3409	}
		3410
		3411	# make sure only one server instance is running at any one time
		3412	sub atomic {
		3413	my $fh = pidfile;
		3414
		3415	my $pid = <$fh>;
		3416	kill 9, $pid if $pid > 0;
		3417
		3418	seek $fh, 0, 0;
		3419	print $fh $$;
2313	}	3420	}
2314		3421
2315	sub main {	3422	sub main {
		3423	cf::init_globals; # initialise logging
		3424
		3425	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3426	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3427	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3428	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3429
		3430	cf::init_experience;
		3431	cf::init_anim;
		3432	cf::init_attackmess;
		3433	cf::init_dynamic;
		3434	cf::init_block;
		3435
		3436	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3437
2316	# we must not ever block the main coroutine	3438	# we must not ever block the main coroutine
2317	local $Coro::idle = sub {	3439	local $Coro::idle = sub {
2318	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3440	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2319	(async {	3441	(async {
2320	Event::one_event;	3442	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3443	EV::loop EV::LOOP_ONESHOT;
2321	})->prio (Coro::PRIO_MAX);	3444	})->prio (Coro::PRIO_MAX);
2322	};	3445	};
2323		3446
2324	cfg_load;	3447	evthread_start IO::AIO::poll_fileno;
2325	db_load;	3448
		3449	cf::sync_job {
		3450	reload_resources;
		3451	reload_config;
		3452	db_init;
		3453
		3454	cf::load_settings;
		3455	cf::load_materials;
		3456	cf::init_uuid;
		3457	cf::init_signals;
		3458	cf::init_commands;
		3459	cf::init_skills;
		3460
		3461	cf::init_beforeplay;
		3462
		3463	atomic;
		3464
2326	load_extensions;	3465	load_extensions;
2327		3466
2328	$TICK_WATCHER->start;	3467	utime time, time, $RUNTIMEFILE;
		3468
		3469	# no (long-running) fork's whatsoever before this point(!)
		3470	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3471
		3472	(pop @POST_INIT)->(0) while @POST_INIT;
		3473	};
		3474
2329	Event::loop;	3475	EV::loop;
2330	}	3476	}
2331		3477
2332	#############################################################################	3478	#############################################################################
2333	# initialisation and cleanup	3479	# initialisation and cleanup
2334		3480
2335	# install some emergency cleanup handlers	3481	# install some emergency cleanup handlers
2336	BEGIN {	3482	BEGIN {
		3483	our %SIGWATCHER = ();
2337	for my $signal (qw(INT HUP TERM)) {	3484	for my $signal (qw(INT HUP TERM)) {
2338	Event->signal (	3485	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2339	reentrant => 0,
2340	data => WF_AUTOCANCEL,
2341	signal => $signal,
2342	prio => 0,
2343	cb => sub {
2344	cf::cleanup "SIG$signal";	3486	cf::cleanup "SIG$signal";
2345	},
2346	);	3487	};
		3488	}
		3489	}
		3490
		3491	sub write_runtime_sync {
		3492	# first touch the runtime file to show we are still running:
		3493	# the fsync below can take a very very long time.
		3494
		3495	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3496
		3497	my $guard = cf::lock_acquire "write_runtime";
		3498
		3499	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3500	or return;
		3501
		3502	my $value = $cf::RUNTIME + 90 + 10;
		3503	# 10 is the runtime save interval, for a monotonic clock
		3504	# 60 allows for the watchdog to kill the server.
		3505
		3506	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3507	and return;
		3508
		3509	# always fsync - this file is important
		3510	aio_fsync $fh
		3511	and return;
		3512
		3513	# touch it again to show we are up-to-date
		3514	aio_utime $fh, undef, undef;
		3515
		3516	close $fh
		3517	or return;
		3518
		3519	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3520	and return;
		3521
		3522	warn "runtime file written.\n";
		3523
2347	}	3524	1
		3525	}
		3526
		3527	our $uuid_lock;
		3528	our $uuid_skip;
		3529
		3530	sub write_uuid_sync($) {
		3531	$uuid_skip ||= $_[0];
		3532
		3533	return if $uuid_lock;
		3534	local $uuid_lock = 1;
		3535
		3536	my $uuid = "$LOCALDIR/uuid";
		3537
		3538	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3539	or return;
		3540
		3541	my $value = uuid_seq uuid_cur;
		3542
		3543	unless ($value) {
		3544	warn "cowardly refusing to write zero uuid value!\n";
		3545	return;
		3546	}
		3547
		3548	my $value = uuid_str $value + $uuid_skip;
		3549	$uuid_skip = 0;
		3550
		3551	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3552	and return;
		3553
		3554	# always fsync - this file is important
		3555	aio_fsync $fh
		3556	and return;
		3557
		3558	close $fh
		3559	or return;
		3560
		3561	aio_rename "$uuid~", $uuid
		3562	and return;
		3563
		3564	warn "uuid file written ($value).\n";
		3565
		3566	1
		3567
		3568	}
		3569
		3570	sub write_uuid($$) {
		3571	my ($skip, $sync) = @_;
		3572
		3573	$sync ? write_uuid_sync $skip
		3574	: async { write_uuid_sync $skip };
2348	}	3575	}
2349		3576
2350	sub emergency_save() {	3577	sub emergency_save() {
2351	my $freeze_guard = cf::freeze_mainloop;	3578	my $freeze_guard = cf::freeze_mainloop;
2352		3579
2353	warn "enter emergency perl save\n";	3580	warn "emergency_perl_save: enter\n";
2354		3581
2355	cf::sync_job {	3582	cf::sync_job {
		3583	# this is a trade-off: we want to be very quick here, so
		3584	# save all maps without fsync, and later call a global sync
		3585	# (which in turn might be very very slow)
		3586	local $USE_FSYNC = 0;
		3587
2356	# use a peculiar iteration method to avoid tripping on perl	3588	# use a peculiar iteration method to avoid tripping on perl
2357	# refcount bugs in for. also avoids problems with players	3589	# refcount bugs in for. also avoids problems with players
2358	# and maps saved/destroyed asynchronously.	3590	# and maps saved/destroyed asynchronously.
2359	warn "begin emergency player save\n";	3591	warn "emergency_perl_save: begin player save\n";
2360	for my $login (keys %cf::PLAYER) {	3592	for my $login (keys %cf::PLAYER) {
2361	my $pl = $cf::PLAYER{$login} or next;	3593	my $pl = $cf::PLAYER{$login} or next;
2362	$pl->valid or next;	3594	$pl->valid or next;
		3595	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2363	$pl->save;	3596	$pl->save;
2364	}	3597	}
2365	warn "end emergency player save\n";	3598	warn "emergency_perl_save: end player save\n";
2366		3599
2367	warn "begin emergency map save\n";	3600	warn "emergency_perl_save: begin map save\n";
2368	for my $path (keys %cf::MAP) {	3601	for my $path (keys %cf::MAP) {
2369	my $map = $cf::MAP{$path} or next;	3602	my $map = $cf::MAP{$path} or next;
2370	$map->valid or next;	3603	$map->valid or next;
2371	$map->save;	3604	$map->save;
2372	}	3605	}
2373	warn "end emergency map save\n";	3606	warn "emergency_perl_save: end map save\n";
		3607
		3608	warn "emergency_perl_save: begin database checkpoint\n";
		3609	BDB::db_env_txn_checkpoint $DB_ENV;
		3610	warn "emergency_perl_save: end database checkpoint\n";
		3611
		3612	warn "emergency_perl_save: begin write uuid\n";
		3613	write_uuid_sync 1;
		3614	warn "emergency_perl_save: end write uuid\n";
2374	};	3615	};
2375		3616
		3617	warn "emergency_perl_save: starting sync()\n";
		3618	IO::AIO::aio_sync sub {
		3619	warn "emergency_perl_save: finished sync()\n";
		3620	};
		3621
2376	warn "leave emergency perl save\n";	3622	warn "emergency_perl_save: leave\n";
2377	}	3623	}
2378		3624
		3625	sub post_cleanup {
		3626	my ($make_core) = @_;
		3627
		3628	warn Carp::longmess "post_cleanup backtrace"
		3629	if $make_core;
		3630
		3631	my $fh = pidfile;
		3632	unlink $PIDFILE if <$fh> == $$;
		3633	}
		3634
		3635	# a safer delete_package, copied from Symbol
		3636	sub clear_package($) {
		3637	my $pkg = shift;
		3638
		3639	# expand to full symbol table name if needed
		3640	unless ($pkg =~ /^main::.*::$/) {
		3641	$pkg = "main$pkg" if $pkg =~ /^::/;
		3642	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3643	$pkg .= '::' unless $pkg =~ /::$/;
		3644	}
		3645
		3646	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3647	my $stem_symtab = *{$stem}{HASH};
		3648
		3649	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3650	or return;
		3651
		3652	# clear all symbols
		3653	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3654	for my $name (keys %$leaf_symtab) {
		3655	_gv_clear *{"$pkg$name"};
		3656	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3657	}
		3658	warn "cleared package $pkg\n";#d#
		3659	}
		3660
2379	sub reload() {	3661	sub do_reload_perl() {
2380	# can/must only be called in main	3662	# can/must only be called in main
2381	if ($Coro::current != $Coro::main) {	3663	if ($Coro::current != $Coro::main) {
2382	warn "can only reload from main coroutine";	3664	warn "can only reload from main coroutine";
2383	return;	3665	return;
2384	}	3666	}
2385		3667
		3668	return if $RELOAD++;
		3669
		3670	my $t1 = EV::time;
		3671
		3672	while ($RELOAD) {
2386	warn "reloading...";	3673	warn "reloading...";
2387		3674
2388	warn "cancelling server ticker";	3675	warn "entering sync_job";
2389	$TICK_WATCHER->cancel;
2390		3676
		3677	cf::sync_job {
		3678	cf::write_runtime_sync; # external watchdog should not bark
2391	cf::emergency_save;	3679	cf::emergency_save;
		3680	cf::write_runtime_sync; # external watchdog should not bark
2392		3681
2393	eval {	3682	warn "syncing database to disk";
		3683	BDB::db_env_txn_checkpoint $DB_ENV;
		3684
2394	# if anything goes wrong in here, we should simply crash as we already saved	3685	# if anything goes wrong in here, we should simply crash as we already saved
2395		3686
2396	warn "syncing database to disk";
2397	cf::db_sync;
2398
2399	warn "cancelling all WF_AUTOCANCEL watchers";
2400	for (Event::all_watchers) {
2401	$_->cancel if $_->data & WF_AUTOCANCEL;
2402	}
2403
2404	warn "flushing outstanding aio requests";	3687	warn "flushing outstanding aio requests";
2405	for (;;) {	3688	while (IO::AIO::nreqs || BDB::nreqs) {
2406	IO::AIO::flush;	3689	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2407	Coro::cede;
2408	last unless IO::AIO::nreqs;
2409	warn "iterate...";
2410	}
2411
2412	warn "cancelling all extension coros";
2413	$_->cancel for values %EXT_CORO;
2414	%EXT_CORO = ();
2415
2416	warn "removing commands";
2417	%COMMAND = ();
2418
2419	warn "removing ext commands";
2420	%EXTCMD = ();
2421
2422	warn "unloading/nuking all extensions";
2423	for my $pkg (@EXTS) {
2424	warn "... unloading $pkg";
2425
2426	if (my $cb = $pkg->can ("unload")) {
2427	eval {
2428	$cb->($pkg);
2429	1
2430	} or warn "$pkg unloaded, but with errors: $@";
2431	}	3690	}
2432		3691
2433	warn "... nuking $pkg";	3692	warn "cancelling all extension coros";
2434	Symbol::delete_package $pkg;	3693	$_->cancel for values %EXT_CORO;
2435	}	3694	%EXT_CORO = ();
2436		3695
2437	warn "unloading all perl modules loaded from $LIBDIR";	3696	warn "removing commands";
2438	while (my ($k, $v) = each %INC) {	3697	%COMMAND = ();
2439	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2440		3698
		3699	warn "removing ext/exti commands";
		3700	%EXTCMD = ();
		3701	%EXTICMD = ();
		3702
		3703	warn "unloading/nuking all extensions";
		3704	for my $pkg (@EXTS) {
2441	warn "... unloading $k";	3705	warn "... unloading $pkg";
2442	delete $INC{$k};
2443		3706
2444	$k =~ s/\.pm$//;
2445	$k =~ s/\//::/g;
2446
2447	if (my $cb = $k->can ("unload_module")) {	3707	if (my $cb = $pkg->can ("unload")) {
		3708	eval {
2448	$cb->();	3709	$cb->($pkg);
		3710	1
		3711	} or warn "$pkg unloaded, but with errors: $@";
		3712	}
		3713
		3714	warn "... clearing $pkg";
		3715	clear_package $pkg;
2449	}	3716	}
2450		3717
2451	Symbol::delete_package $k;	3718	warn "unloading all perl modules loaded from $LIBDIR";
		3719	while (my ($k, $v) = each %INC) {
		3720	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3721
		3722	warn "... unloading $k";
		3723	delete $INC{$k};
		3724
		3725	$k =~ s/\.pm$//;
		3726	$k =~ s/\//::/g;
		3727
		3728	if (my $cb = $k->can ("unload_module")) {
		3729	$cb->();
		3730	}
		3731
		3732	clear_package $k;
2452	}	3733	}
2453		3734
2454	warn "getting rid of safe::, as good as possible";	3735	warn "getting rid of safe::, as good as possible";
2455	Symbol::delete_package "safe::$_"	3736	clear_package "safe::$_"
2456	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3737	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2457		3738
2458	warn "unloading cf.pm \"a bit\"";	3739	warn "unloading cf.pm \"a bit\"";
2459	delete $INC{"cf.pm"};	3740	delete $INC{"cf.pm"};
		3741	delete $INC{"cf/pod.pm"};
2460		3742
2461	# don't, removes xs symbols, too,	3743	# don't, removes xs symbols, too,
2462	# and global variables created in xs	3744	# and global variables created in xs
2463	#Symbol::delete_package __PACKAGE__;	3745	#clear_package __PACKAGE__;
2464		3746
2465	warn "unload completed, starting to reload now";	3747	warn "unload completed, starting to reload now";
2466		3748
2467	warn "reloading cf.pm";	3749	warn "reloading cf.pm";
2468	require cf;	3750	require cf;
2469	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3751	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2470		3752
2471	warn "loading config and database again";	3753	warn "loading config and database again";
2472	cf::cfg_load;	3754	cf::reload_config;
2473	cf::db_load;
2474		3755
2475	warn "loading extensions";	3756	warn "loading extensions";
2476	cf::load_extensions;	3757	cf::load_extensions;
2477		3758
		3759	if ($REATTACH_ON_RELOAD) {
2478	warn "reattaching attachments to objects/players";	3760	warn "reattaching attachments to objects/players";
2479	_global_reattach;	3761	_global_reattach; # objects, sockets
2480	warn "reattaching attachments to maps";	3762	warn "reattaching attachments to maps";
2481	reattach $_ for values %MAP;	3763	reattach $_ for values %MAP;
		3764	warn "reattaching attachments to players";
		3765	reattach $_ for values %PLAYER;
		3766	}
2482		3767
2483	warn "loading reloadable resources";	3768	warn "running post_init jobs";
2484	load_resources;	3769	(pop @POST_INIT)->(1) while @POST_INIT;
2485		3770
2486	warn "restarting server ticker";	3771	warn "leaving sync_job";
2487		3772
2488	$TICK_WATCHER->start;	3773	1
		3774	} or do {
		3775	warn $@;
		3776	cf::cleanup "error while reloading, exiting.";
		3777	};
		3778
		3779	warn "reloaded";
		3780	--$RELOAD;
		3781	}
		3782
		3783	$t1 = EV::time - $t1;
		3784	warn "reload completed in ${t1}s\n";
		3785	};
		3786
		3787	our $RELOAD_WATCHER; # used only during reload
		3788
		3789	sub reload_perl() {
		3790	# doing reload synchronously and two reloads happen back-to-back,
		3791	# coro crashes during coro_state_free->destroy here.
		3792
		3793	$RELOAD_WATCHER ||= cf::async {
		3794	Coro::AIO::aio_wait cache_extensions;
		3795
		3796	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3797	do_reload_perl;
		3798	undef $RELOAD_WATCHER;
		3799	};
2489	};	3800	};
2490		3801	}
2491	if ($@) {
2492	warn $@;
2493	warn "error while reloading, exiting.";
2494	exit 1;
2495	}
2496
2497	warn "reloaded";
2498	};
2499
2500	our $RELOAD_WATCHER; # used only during reload
2501		3802
2502	register_command "reload" => sub {	3803	register_command "reload" => sub {
2503	my ($who, $arg) = @_;	3804	my ($who, $arg) = @_;
2504		3805
2505	if ($who->flag (FLAG_WIZ)) {	3806	if ($who->flag (FLAG_WIZ)) {
2506	$who->message ("reloading server.");	3807	$who->message ("reloading server.");
2507		3808	async {
2508	# doing reload synchronously and two reloads happen back-to-back,	3809	$Coro::current->{desc} = "perl_reload";
2509	# coro crashes during coro_state_free->destroy here.
2510
2511	$RELOAD_WATCHER ||= Event->timer (
2512	reentrant => 0,
2513	after => 0,
2514	data => WF_AUTOCANCEL,
2515	cb => sub {
2516	reload;	3810	reload_perl;
2517	undef $RELOAD_WATCHER;
2518	},
2519	);	3811	};
2520	}	3812	}
2521	};	3813	};
2522		3814
2523	unshift @INC, $LIBDIR;	3815	unshift @INC, $LIBDIR;
2524		3816
2525	my $bug_warning = 0;	3817	my $bug_warning = 0;
2526		3818
2527	$TICK_WATCHER = Event->timer (	3819	our @WAIT_FOR_TICK;
2528	reentrant => 0,	3820	our @WAIT_FOR_TICK_BEGIN;
2529	parked => 1,	3821
2530	prio => 0,	3822	sub wait_for_tick {
2531	at => $NEXT_TICK || $TICK,	3823	return if tick_inhibit || $Coro::current == $Coro::main;
2532	data => WF_AUTOCANCEL,	3824
2533	cb => sub {	3825	my $signal = new Coro::Signal;
		3826	push @WAIT_FOR_TICK, $signal;
		3827	$signal->wait;
		3828	}
		3829
		3830	sub wait_for_tick_begin {
		3831	return if tick_inhibit || $Coro::current == $Coro::main;
		3832
		3833	my $signal = new Coro::Signal;
		3834	push @WAIT_FOR_TICK_BEGIN, $signal;
		3835	$signal->wait;
		3836	}
		3837
		3838	sub tick {
2534	if ($Coro::current != $Coro::main) {	3839	if ($Coro::current != $Coro::main) {
2535	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3840	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2536	unless ++$bug_warning > 10;	3841	unless ++$bug_warning > 10;
2537	return;	3842	return;
2538	}	3843	}
2539		3844
2540	$NOW = Event::time;
2541
2542	cf::server_tick; # one server iteration	3845	cf::server_tick; # one server iteration
2543	$RUNTIME += $TICK;
2544	$NEXT_TICK += $TICK;
2545		3846
2546	$WAIT_FOR_TICK->broadcast;	3847	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2547	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3848	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		3849	Coro::async_pool {
		3850	$Coro::current->{desc} = "runtime saver";
		3851	write_runtime_sync
		3852	or warn "ERROR: unable to write runtime file: $!";
		3853	};
		3854	}
2548		3855
2549	Event::sweep;	3856	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2550	Coro::cede_notself;	3857	$sig->send;
		3858	}
		3859	while (my $sig = shift @WAIT_FOR_TICK) {
		3860	$sig->send;
		3861	}
		3862
		3863	$LOAD = ($NOW - $TICK_START) / $TICK;
		3864	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3865
		3866	if (0) {
		3867	if ($NEXT_TICK) {
		3868	my $jitter = $TICK_START - $NEXT_TICK;
		3869	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3870	warn "jitter $JITTER\n";#d#
2551		3871	}
2552	# my $AFTER = Event::time;
2553	# warn $AFTER - $NOW;#d#
2554
2555	# if we are delayed by four ticks or more, skip them all
2556	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2557
2558	$TICK_WATCHER->at ($NEXT_TICK);
2559	$TICK_WATCHER->start;
2560	},	3872	}
2561	);	3873	}
2562		3874
2563	{	3875	{
2564	BDB::max_poll_time $TICK * 0.1;	3876	# configure BDB
2565	$BDB_POLL_WATCHER = Event->io (	3877
2566	reentrant => 0,
2567	fd => BDB::poll_fileno,
2568	poll => 'r',
2569	prio => 0,
2570	data => WF_AUTOCANCEL,
2571	cb => \&BDB::poll_cb,
2572	);
2573	BDB::min_parallel 8;	3878	BDB::min_parallel 8;
2574		3879	BDB::max_poll_reqs $TICK * 0.1;
2575	BDB::set_sync_prepare {	3880	$AnyEvent::BDB::WATCHER->priority (1);
2576	my $status;
2577	my $current = $Coro::current;
2578	(
2579	sub {
2580	$status = $!;
2581	$current->ready; undef $current;
2582	},
2583	sub {
2584	Coro::schedule while defined $current;
2585	$! = $status;
2586	},
2587	)
2588	};
2589		3881
2590	unless ($DB_ENV) {	3882	unless ($DB_ENV) {
2591	$DB_ENV = BDB::db_env_create;	3883	$DB_ENV = BDB::db_env_create;
		3884	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3885	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3886	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3887	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3888	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2592		3889
2593	cf::sync_job {	3890	cf::sync_job {
		3891	eval {
2594	BDB::db_env_open	3892	BDB::db_env_open
2595	$DB_ENV,	3893	$DB_ENV,
2596	$BDB_ENV_DIR,	3894	$BDBDIR,
2597	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3895	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2598	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3896	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2599	0666;	3897	0666;
2600		3898
2601	cf::cleanup "$!" if $!;	3899	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2602		3900	};
2603	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3901
2604	$DB_ENV->set_lk_detect;	3902	cf::cleanup "db_env_open(db): $@" if $@;
2605	};	3903	};
2606	}	3904	}
		3905
		3906	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3907	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3908	};
		3909	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3910	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3911	};
		3912	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3913	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3914	};
2607	}	3915	}
2608		3916
2609	{	3917	{
		3918	# configure IO::AIO
		3919
2610	IO::AIO::min_parallel 8;	3920	IO::AIO::min_parallel 8;
2611
2612	undef $Coro::AIO::WATCHER;
2613	IO::AIO::max_poll_time $TICK * 0.1;	3921	IO::AIO::max_poll_time $TICK * 0.1;
2614	$AIO_POLL_WATCHER = Event->io (	3922	undef $AnyEvent::AIO::WATCHER;
2615	reentrant => 0,
2616	fd => IO::AIO::poll_fileno,
2617	poll => 'r',
2618	prio => 6,
2619	data => WF_AUTOCANCEL,
2620	cb => \&IO::AIO::poll_cb,
2621	);
2622	}	3923	}
2623		3924
2624	$WRITE_RUNTIME_WATCHER = Event->timer (	3925	my $_log_backtrace;
2625	reentrant => 0,	3926
2626	data => WF_AUTOCANCEL,	3927	sub _log_backtrace {
2627	after => 1,	3928	my ($msg, @addr) = @_;
2628	interval => 10,	3929
2629	prio => 6, # keep it lowest so it acts like a watchdog	3930	$msg =~ s/\n//;
2630	cb => Coro::unblock_sub {	3931
2631	write_runtime	3932	# limit the # of concurrent backtraces
2632	or warn "ERROR: unable to write runtime file: $!";	3933	if ($_log_backtrace < 2) {
		3934	++$_log_backtrace;
		3935	my $perl_bt = Carp::longmess $msg;
		3936	async {
		3937	$Coro::current->{desc} = "abt $msg";
		3938
		3939	my @bt = fork_call {
		3940	@addr = map { sprintf "%x", $_ } @addr;
		3941	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3942	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3943	or die "addr2line: $!";
		3944
		3945	my @funcs;
		3946	my @res = <$fh>;
		3947	chomp for @res;
		3948	while (@res) {
		3949	my ($func, $line) = splice @res, 0, 2, ();
		3950	push @funcs, "[$func] $line";
		3951	}
		3952
		3953	@funcs
		3954	};
		3955
		3956	LOG llevInfo, "[ABT] $perl_bt\n";
		3957	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3958	LOG llevInfo, "[ABT] $_\n" for @bt;
		3959	--$_log_backtrace;
		3960	};
		3961	} else {
		3962	LOG llevInfo, "[ABT] $msg\n";
		3963	LOG llevInfo, "[ABT] [suppressed]\n";
2633	},	3964	}
2634	);	3965	}
		3966
		3967	# load additional modules
		3968	use cf::pod;
2635		3969
2636	END { cf::emergency_save }	3970	END { cf::emergency_save }
2637		3971
2638	1	3972	1
2639		3973

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