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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.167 by root, Sat Jan 13 23:32:43 2007 UTC vs.
Revision 1.450 by root, Mon Sep 22 01:33:09 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 3.3 ();	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 ();
		52	use BDB ();
20	use Data::Dumper;	53	use Data::Dumper;
21	use Digest::MD5;	54	use Digest::MD5;
22	use Fcntl;	55	use Fcntl;
		56	use YAML ();
23	use IO::AIO 2.32 ();	57	use IO::AIO ();
24	use YAML::Syck ();
25	use Time::HiRes;	58	use Time::HiRes;
		59	use Compress::LZF;
		60	use Digest::MD5 ();
26		61
27	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
28		74
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	75	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		76
36	our %COMMAND = ();	77	our %COMMAND = ();
37	our %COMMAND_TIME = ();	78	our %COMMAND_TIME = ();
38		79
39	our @EXTS = (); # list of extension package names	80	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	81	our %EXTCMD = ();
		82	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	83	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	84	our %EXT_MAP = (); # pluggable maps
43		85
		86	our $RELOAD; # number of reloads so far
44	our @EVENT;	87	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		88
47	our $TICK = MAX_TIME * 1e-6;	89	our $CONFDIR = confdir;
48	our $TICK_WATCHER;	90	our $DATADIR = datadir;
		91	our $LIBDIR = "$DATADIR/ext";
		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
49	our $NEXT_TICK;	107	our $NEXT_TICK;
50	our $NOW;	108	our $USE_FSYNC = 1; # use fsync to write maps - default off
		109
		110	our $BDB_DEADLOCK_WATCHER;
		111	our $BDB_CHECKPOINT_WATCHER;
		112	our $BDB_TRICKLE_WATCHER;
		113	our $DB_ENV;
51		114
52	our %CFG;	115	our %CFG;
53		116
54	our $UPTIME; $UPTIME ||= time;	117	our $UPTIME; $UPTIME ||= time;
55	our $RUNTIME;	118	our $RUNTIME;
		119	our $NOW;
56		120
57	our %PLAYER; # all users	121	our (%PLAYER, %PLAYER_LOADING); # all users
58	our %MAP; # all maps	122	our (%MAP, %MAP_LOADING ); # all maps
59	our $LINK_MAP; # the special {link} map, which is always available	123	our $LINK_MAP; # the special {link} map, which is always available
60	our $RANDOM_MAPS = cf::localdir . "/random";
61
62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
63	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
64		124
65	# 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 ∕
66	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	126	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
67		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 $TICK_START; # for load detecting purposes
		132
68	binmode STDOUT;	133	binmode STDOUT;
69	binmode STDERR;	134	binmode STDERR;
70		135
71	# read virtual server time, if available	136	# read virtual server time, if available
72	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	137	unless ($RUNTIME || !-e $RUNTIMEFILE) {
73	open my $fh, "<", cf::localdir . "/runtime"	138	open my $fh, "<", $RUNTIMEFILE
74	or die "unable to read runtime file: $!";	139	or die "unable to read $RUNTIMEFILE file: $!";
75	$RUNTIME = <$fh> + 0.;	140	$RUNTIME = <$fh> + 0.;
76	}	141	}
77		142
78	mkdir cf::localdir;	143	mkdir $_
79	mkdir cf::localdir . "/" . cf::playerdir;	144	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
80	mkdir cf::localdir . "/" . cf::tmpdir;
81	mkdir cf::localdir . "/" . cf::uniquedir;
82	mkdir $RANDOM_MAPS;
83		145
84	our $EMERGENCY_POSITION;	146	our $EMERGENCY_POSITION;
		147
		148	sub cf::map::normalise;
85		149
86	#############################################################################	150	#############################################################################
87		151
88	=head2 GLOBAL VARIABLES	152	=head2 GLOBAL VARIABLES
89		153
…		…
96	=item $cf::RUNTIME	160	=item $cf::RUNTIME
97		161
98	The time this server has run, starts at 0 and is increased by $cf::TICK on	162	The time this server has run, starts at 0 and is increased by $cf::TICK on
99	every server tick.	163	every server tick.
100		164
101	=item $cf::LIBDIR	165	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		166	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		167	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
102		168
103	The perl library directory, where extensions and cf-specific modules can	169	Various directories - "/etc", read-only install directory, perl-library
104	be found. It will be added to C<@INC> automatically.	170	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		171	unique-items directory, player file directory, random maps directory and
		172	database environment.
105		173
106	=item $cf::NOW	174	=item $cf::NOW
107		175
108	The time of the last (current) server tick.	176	The time of the last (current) server tick.
109		177
110	=item $cf::TICK	178	=item $cf::TICK
111		179
112	The interval between server ticks, in seconds.	180	The interval between server ticks, in seconds.
113		181
		182	=item $cf::LOADAVG
		183
		184	The current CPU load on the server (alpha-smoothed), as a value between 0
		185	(none) and 1 (overloaded), indicating how much time is spent on processing
		186	objects per tick. Healthy values are < 0.5.
		187
		188	=item $cf::LOAD
		189
		190	The raw value load value from the last tick.
		191
114	=item %cf::CFG	192	=item %cf::CFG
115		193
116	Configuration for the server, loaded from C</etc/crossfire/config>, or	194	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
117	from wherever your confdir points to.	195	from wherever your confdir points to.
118		196
119	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	197	=item cf::wait_for_tick, cf::wait_for_tick_begin
120		198
121	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	199	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
122	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	200	returns directly I<after> the tick processing (and consequently, can only wake one process
123	processing has been done. Call C<< ->wait >> on them to maximise the	201	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
124	window of cpu time available, or simply to synchronise to the server tick.	202
		203	=item @cf::INVOKE_RESULTS
		204
		205	This array contains the results of the last C<invoke ()> call. When
		206	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		207	that call.
125		208
126	=back	209	=back
127		210
128	=cut	211	=cut
129		212
130	BEGIN {	213	BEGIN {
131	*CORE::GLOBAL::warn = sub {	214	*CORE::GLOBAL::warn = sub {
132	my $msg = join "", @_;	215	my $msg = join "", @_;
133	utf8::encode $msg;
134		216
135	$msg .= "\n"	217	$msg .= "\n"
136	unless $msg =~ /\n$/;	218	unless $msg =~ /\n$/;
137		219
		220	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		221
138	LOG llevError, $msg;	222	LOG llevError, $msg;
139	};	223	};
140	}	224	}
		225
		226	$Coro::State::DIEHOOK = sub {
		227	return unless $^S eq 0; # "eq", not "=="
		228
		229	if ($Coro::current == $Coro::main) {#d#
		230	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		231	return;#d#
		232	}#d#
		233
		234	# kill coroutine otherwise
		235	warn Carp::longmess $_[0];
		236	Coro::terminate
		237	};
		238
		239	$SIG{__DIE__} = sub { }; #d#?
141		240
142	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	241	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
143	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	242	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
144	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	243	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
145	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	244	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
146	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	245	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		246	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
147	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	247	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
148		248
149	# we bless all objects into (empty) derived classes to force a method lookup	249	# we bless all objects into (empty) derived classes to force a method lookup
150	# within the Safe compartment.	250	# within the Safe compartment.
151	for my $pkg (qw(	251	for my $pkg (qw(
152	cf::global cf::attachable	252	cf::global cf::attachable
153	cf::object cf::object::player	253	cf::object cf::object::player
154	cf::client cf::player	254	cf::client cf::player
155	cf::arch cf::living	255	cf::arch cf::living
		256	cf::map cf::mapspace
156	cf::map cf::party cf::region	257	cf::party cf::region
157	)) {	258	)) {
158	no strict 'refs';
159	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	259	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
160	}	260	}
161		261
162	$Event::DIED = sub {	262	$EV::DIED = sub {
163	warn "error in event callback: @_";	263	warn "error in event callback: @_";
164	};	264	};
		265
		266	#############################################################################
165		267
166	=head2 UTILITY FUNCTIONS	268	=head2 UTILITY FUNCTIONS
167		269
168	=over 4	270	=over 4
169		271
…		…
188	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	290	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
189	$d	291	$d
190	} || "[unable to dump $_[0]: '$@']";	292	} || "[unable to dump $_[0]: '$@']";
191	}	293	}
192		294
193	use JSON::Syck (); # TODO# replace by JSON::PC once working
194
195	=item $ref = cf::from_json $json	295	=item $ref = cf::decode_json $json
196		296
197	Converts a JSON string into the corresponding perl data structure.	297	Converts a JSON string into the corresponding perl data structure.
198		298
199	=cut
200
201	sub from_json($) {
202	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203	JSON::Syck::Load $_[0]
204	}
205
206	=item $json = cf::to_json $ref	299	=item $json = cf::encode_json $ref
207		300
208	Converts a perl data structure into its JSON representation.	301	Converts a perl data structure into its JSON representation.
209		302
210	=cut	303	=cut
211		304
212	sub to_json($) {	305	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	306
214	JSON::Syck::Dump $_[0]	307	sub encode_json($) { $json_coder->encode ($_[0]) }
215	}	308	sub decode_json($) { $json_coder->decode ($_[0]) }
216		309
217	=item cf::lock_wait $string	310	=item cf::lock_wait $string
218		311
219	Wait until the given lock is available. See cf::lock_acquire.	312	Wait until the given lock is available. See cf::lock_acquire.
220		313
…		…
223	Wait until the given lock is available and then acquires it and returns	316	Wait until the given lock is available and then acquires it and returns
224	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	317	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
225	for example when the coroutine gets canceled), the lock is automatically	318	for example when the coroutine gets canceled), the lock is automatically
226	returned.	319	returned.
227		320
		321	Locks are *not* recursive, locking from the same coro twice results in a
		322	deadlocked coro.
		323
228	Lock names should begin with a unique identifier (for example, cf::map::find	324	Lock names should begin with a unique identifier (for example, cf::map::find
229	uses map_find and cf::map::load uses map_load).	325	uses map_find and cf::map::load uses map_load).
230		326
		327	=item $locked = cf::lock_active $string
		328
		329	Return true if the lock is currently active, i.e. somebody has locked it.
		330
231	=cut	331	=cut
232		332
233	our %LOCK;	333	our %LOCK;
		334	our %LOCKER;#d#
234		335
235	sub lock_wait($) {	336	sub lock_wait($) {
236	my ($key) = @_;	337	my ($key) = @_;
		338
		339	if ($LOCKER{$key} == $Coro::current) {#d#
		340	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		341	return;#d#
		342	}#d#
237		343
238	# wait for lock, if any	344	# wait for lock, if any
239	while ($LOCK{$key}) {	345	while ($LOCK{$key}) {
240	push @{ $LOCK{$key} }, $Coro::current;	346	push @{ $LOCK{$key} }, $Coro::current;
241	Coro::schedule;	347	Coro::schedule;
…		…
247		353
248	# wait, to be sure we are not locked	354	# wait, to be sure we are not locked
249	lock_wait $key;	355	lock_wait $key;
250		356
251	$LOCK{$key} = [];	357	$LOCK{$key} = [];
		358	$LOCKER{$key} = $Coro::current;#d#
252		359
253	Coro::guard {	360	Coro::guard {
		361	delete $LOCKER{$key};#d#
254	# wake up all waiters, to be on the safe side	362	# wake up all waiters, to be on the safe side
255	$_->ready for @{ delete $LOCK{$key} };	363	$_->ready for @{ delete $LOCK{$key} };
256	}	364	}
257	}	365	}
258		366
		367	sub lock_active($) {
		368	my ($key) = @_;
		369
		370	! ! $LOCK{$key}
		371	}
		372
259	sub freeze_mainloop {	373	sub freeze_mainloop {
260	return unless $TICK_WATCHER->is_active;	374	tick_inhibit_inc;
261		375
262	my $guard = Coro::guard { $TICK_WATCHER->start };	376	Coro::guard \&tick_inhibit_dec;
263	$TICK_WATCHER->stop;	377	}
264	$guard	378
		379	=item cf::periodic $interval, $cb
		380
		381	Like EV::periodic, but randomly selects a starting point so that the actions
		382	get spread over timer.
		383
		384	=cut
		385
		386	sub periodic($$) {
		387	my ($interval, $cb) = @_;
		388
		389	my $start = rand List::Util::min 180, $interval;
		390
		391	EV::periodic $start, $interval, 0, $cb
		392	}
		393
		394	=item cf::get_slot $time[, $priority[, $name]]
		395
		396	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		397	This call blocks and returns only when you have at least C<$time> seconds
		398	of cpu time till the next tick. The slot is only valid till the next cede.
		399
		400	The optional C<$name> can be used to identify the job to run. It might be
		401	used for statistical purposes and should identify the same time-class.
		402
		403	Useful for short background jobs.
		404
		405	=cut
		406
		407	our @SLOT_QUEUE;
		408	our $SLOT_QUEUE;
		409
		410	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		411	$SLOT_QUEUE = Coro::async {
		412	$Coro::current->desc ("timeslot manager");
		413
		414	my $signal = new Coro::Signal;
		415
		416	while () {
		417	next_job:
		418	my $avail = cf::till_tick;
		419	if ($avail > 0.01) {
		420	for (0 .. $#SLOT_QUEUE) {
		421	if ($SLOT_QUEUE[$_][0] < $avail) {
		422	my $job = splice @SLOT_QUEUE, $_, 1, ();
		423	$job->[2]->send;
		424	Coro::cede;
		425	goto next_job;
		426	}
		427	}
		428	}
		429
		430	if (@SLOT_QUEUE) {
		431	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		432	push @cf::WAIT_FOR_TICK, $signal;
		433	$signal->wait;
		434	} else {
		435	Coro::schedule;
		436	}
		437	}
		438	};
		439
		440	sub get_slot($;$$) {
		441	return if tick_inhibit || $Coro::current == $Coro::main;
		442
		443	my ($time, $pri, $name) = @_;
		444
		445	$time = $TICK * .6 if $time > $TICK * .6;
		446	my $sig = new Coro::Signal;
		447
		448	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		449	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		450	$SLOT_QUEUE->ready;
		451	$sig->wait;
265	}	452	}
266		453
267	=item cf::async { BLOCK }	454	=item cf::async { BLOCK }
268		455
269	Currently the same as Coro::async_pool, meaning you cannot use	456	Currently the same as Coro::async_pool, meaning you cannot use
…		…
274		461
275	BEGIN { *async = \&Coro::async_pool }	462	BEGIN { *async = \&Coro::async_pool }
276		463
277	=item cf::sync_job { BLOCK }	464	=item cf::sync_job { BLOCK }
278		465
279	The design of crossfire+ requires that the main coro ($Coro::main) is	466	The design of Deliantra requires that the main coroutine ($Coro::main)
280	always able to handle events or runnable, as crossfire+ is only partly	467	is always able to handle events or runnable, as Deliantra is only
281	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	468	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		469	acceptable.
282		470
283	If it must be done, put the blocking parts into C<sync_job>. This will run	471	If it must be done, put the blocking parts into C<sync_job>. This will run
284	the given BLOCK in another coroutine while waiting for the result. The	472	the given BLOCK in another coroutine while waiting for the result. The
285	server will be frozen during this time, so the block should either finish	473	server will be frozen during this time, so the block should either finish
286	fast or be very important.	474	fast or be very important.
…		…
289		477
290	sub sync_job(&) {	478	sub sync_job(&) {
291	my ($job) = @_;	479	my ($job) = @_;
292		480
293	if ($Coro::current == $Coro::main) {	481	if ($Coro::current == $Coro::main) {
		482	my $time = EV::time;
		483
294	# this is the main coro, too bad, we have to block	484	# this is the main coro, too bad, we have to block
295	# till the operation succeeds, freezing the server :/	485	# till the operation succeeds, freezing the server :/
296		486
297	# TODO: use suspend/resume instead	487	LOG llevError, Carp::longmess "sync job";#d#
298	# (but this is cancel-safe)	488
299	my $freeze_guard = freeze_mainloop;	489	my $freeze_guard = freeze_mainloop;
300		490
301	my $busy = 1;	491	my $busy = 1;
302	my @res;	492	my @res;
303		493
304	(async {	494	(async {
		495	$Coro::current->desc ("sync job coro");
305	@res = eval { $job->() };	496	@res = eval { $job->() };
306	warn $@ if $@;	497	warn $@ if $@;
307	undef $busy;	498	undef $busy;
308	})->prio (Coro::PRIO_MAX);	499	})->prio (Coro::PRIO_MAX);
309		500
310	while ($busy) {	501	while ($busy) {
311	Coro::cede or Event::one_event;	502	if (Coro::nready) {
		503	Coro::cede_notself;
		504	} else {
		505	EV::loop EV::LOOP_ONESHOT;
312	}	506	}
		507	}
		508
		509	my $time = EV::time - $time;
		510
		511	$TICK_START += $time; # do not account sync jobs to server load
313		512
314	wantarray ? @res : $res[0]	513	wantarray ? @res : $res[0]
315	} else {	514	} else {
316	# we are in another coroutine, how wonderful, everything just works	515	# we are in another coroutine, how wonderful, everything just works
317		516
…		…
337	$EXT_CORO{$coro+0} = $coro;	536	$EXT_CORO{$coro+0} = $coro;
338		537
339	$coro	538	$coro
340	}	539	}
341		540
342	sub write_runtime {	541	=item fork_call { }, $args
343	return unless $TICK_WATCHER->is_active;
344		542
345	my $runtime = cf::localdir . "/runtime";	543	Executes the given code block with the given arguments in a seperate
		544	process, returning the results. Everything must be serialisable with
		545	Coro::Storable. May, of course, block. Note that the executed sub may
		546	never block itself or use any form of event handling.
346		547
347	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	548	=cut
348	or return;
349		549
350	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	550	sub fork_call(&@) {
351	(aio_write $fh, 0, (length $value), $value, 0) <= 0	551	my ($cb, @args) = @_;
352	and return;
353		552
354	aio_fsync $fh	553	# we seemingly have to make a local copy of the whole thing,
355	and return;	554	# otherwise perl prematurely frees the stuff :/
		555	# TODO: investigate and fix (likely this will be rather laborious)
356		556
357	close $fh	557	my @res = Coro::Util::fork_eval {
358	or return;	558	reset_signals;
		559	&$cb
		560	}, @args;
359		561
360	aio_rename "$runtime~", $runtime	562	wantarray ? @res : $res[-1]
361	and return;	563	}
362		564
		565	=item $coin = coin_from_name $name
		566
		567	=cut
		568
		569	our %coin_alias = (
		570	"silver" => "silvercoin",
		571	"silvercoin" => "silvercoin",
		572	"silvercoins" => "silvercoin",
		573	"gold" => "goldcoin",
		574	"goldcoin" => "goldcoin",
		575	"goldcoins" => "goldcoin",
		576	"platinum" => "platinacoin",
		577	"platinumcoin" => "platinacoin",
		578	"platinumcoins" => "platinacoin",
		579	"platina" => "platinacoin",
		580	"platinacoin" => "platinacoin",
		581	"platinacoins" => "platinacoin",
		582	"royalty" => "royalty",
		583	"royalties" => "royalty",
		584	);
		585
		586	sub coin_from_name($) {
		587	$coin_alias{$_[0]}
		588	? cf::arch::find $coin_alias{$_[0]}
		589	: undef
		590	}
		591
		592	=item $value = cf::db_get $family => $key
		593
		594	Returns a single value from the environment database.
		595
		596	=item cf::db_put $family => $key => $value
		597
		598	Stores the given C<$value> in the family. It can currently store binary
		599	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		600
		601	=item $db = cf::db_table "name"
		602
		603	Create and/or open a new database table. The string must not be "db" and must be unique
		604	within each server.
		605
		606	=cut
		607
		608	sub db_table($) {
		609	my ($name) = @_;
		610	my $db = BDB::db_create $DB_ENV;
		611
		612	eval {
		613	$db->set_flags (BDB::CHKSUM);
		614
		615	utf8::encode $name;
		616	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		617	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		618	cf::cleanup "db_open(db): $!" if $!;
		619	};
		620	cf::cleanup "db_open(db): $@" if $@;
		621
		622	$db
		623	}
		624
		625	our $DB;
		626
		627	sub db_init {
		628	cf::sync_job {
		629	$DB ||= db_table "db";
		630	};
		631	}
		632
		633	sub db_get($$) {
		634	my $key = "$_[0]/$_[1]";
		635
		636	cf::sync_job {
		637	BDB::db_get $DB, undef, $key, my $data;
		638
		639	$! ? ()
		640	: $data
363	1	641	}
		642	}
		643
		644	sub db_put($$$) {
		645	BDB::dbreq_pri 4;
		646	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		647	}
		648
		649	=item cf::cache $id => [$paths...], $processversion => $process
		650
		651	Generic caching function that returns the value of the resource $id,
		652	caching and regenerating as required.
		653
		654	This function can block.
		655
		656	=cut
		657
		658	sub cache {
		659	my ($id, $src, $processversion, $process) = @_;
		660
		661	my $meta =
		662	join "\x00",
		663	$processversion,
		664	map {
		665	aio_stat $_
		666	and Carp::croak "$_: $!";
		667
		668	($_, (stat _)[7,9])
		669	} @$src;
		670
		671	my $dbmeta = db_get cache => "$id/meta";
		672	if ($dbmeta ne $meta) {
		673	# changed, we may need to process
		674
		675	my @data;
		676	my $md5;
		677
		678	for (0 .. $#$src) {
		679	0 <= aio_load $src->[$_], $data[$_]
		680	or Carp::croak "$src->[$_]: $!";
		681	}
		682
		683	# if processing is expensive, check
		684	# checksum first
		685	if (1) {
		686	$md5 =
		687	join "\x00",
		688	$processversion,
		689	map {
		690	cf::cede_to_tick;
		691	($src->[$_], Digest::MD5::md5_hex $data[$_])
		692	} 0.. $#$src;
		693
		694
		695	my $dbmd5 = db_get cache => "$id/md5";
		696	if ($dbmd5 eq $md5) {
		697	db_put cache => "$id/meta", $meta;
		698
		699	return db_get cache => "$id/data";
		700	}
		701	}
		702
		703	my $t1 = Time::HiRes::time;
		704	my $data = $process->(\@data);
		705	my $t2 = Time::HiRes::time;
		706
		707	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		708
		709	db_put cache => "$id/data", $data;
		710	db_put cache => "$id/md5" , $md5;
		711	db_put cache => "$id/meta", $meta;
		712
		713	return $data;
		714	}
		715
		716	db_get cache => "$id/data"
		717	}
		718
		719	=item cf::datalog type => key => value, ...
		720
		721	Log a datalog packet of the given type with the given key-value pairs.
		722
		723	=cut
		724
		725	sub datalog($@) {
		726	my ($type, %kv) = @_;
		727	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
364	}	728	}
365		729
366	=back	730	=back
367		731
368	=cut	732	=cut
369		733
370	#############################################################################	734	#############################################################################
371		735
372	=head2 ATTACHABLE OBJECTS	736	=head2 ATTACHABLE OBJECTS
373		737
374	Many objects in crossfire are so-called attachable objects. That means you can	738	Many objects in deliantra are so-called attachable objects. That means you can
375	attach callbacks/event handlers (a collection of which is called an "attachment")	739	attach callbacks/event handlers (a collection of which is called an "attachment")
376	to it. All such attachable objects support the following methods.	740	to it. All such attachable objects support the following methods.
377		741
378	In the following description, CLASS can be any of C<global>, C<object>	742	In the following description, CLASS can be any of C<global>, C<object>
379	C<player>, C<client> or C<map> (i.e. the attachable objects in	743	C<player>, C<client> or C<map> (i.e. the attachable objects in
380	crossfire+).	744	Deliantra).
381		745
382	=over 4	746	=over 4
383		747
384	=item $attachable->attach ($attachment, key => $value...)	748	=item $attachable->attach ($attachment, key => $value...)
385		749
…		…
429	=item cf::CLASS::attachment $name, ...	793	=item cf::CLASS::attachment $name, ...
430		794
431	Register an attachment by C<$name> through which attachable objects of the	795	Register an attachment by C<$name> through which attachable objects of the
432	given CLASS can refer to this attachment.	796	given CLASS can refer to this attachment.
433		797
434	Some classes such as crossfire maps and objects can specify attachments	798	Some classes such as deliantra maps and objects can specify attachments
435	that are attached at load/instantiate time, thus the need for a name.	799	that are attached at load/instantiate time, thus the need for a name.
436		800
437	These calls expect any number of the following handler/hook descriptions:	801	These calls expect any number of the following handler/hook descriptions:
438		802
439	=over 4	803	=over 4
…		…
499	our @CB_TYPE = (); # registry for type (cf-object class) based events	863	our @CB_TYPE = (); # registry for type (cf-object class) based events
500	our @CB_MAP = ();	864	our @CB_MAP = ();
501		865
502	my %attachment;	866	my %attachment;
503		867
		868	sub cf::attachable::thawer_merge {
		869	# simply override everything except _meta
		870	local $_[0]{_meta};
		871	%{$_[0]} = %{$_[1]};
		872	}
		873
504	sub _attach_cb($$$$) {	874	sub _attach_cb($$$$) {
505	my ($registry, $event, $prio, $cb) = @_;	875	my ($registry, $event, $prio, $cb) = @_;
506		876
507	use sort 'stable';	877	use sort 'stable';
508		878
…		…
542	$registry = $CB_TYPE[$object_type] ||= [];	912	$registry = $CB_TYPE[$object_type] ||= [];
543		913
544	} elsif ($type eq "subtype") {	914	} elsif ($type eq "subtype") {
545	defined $object_type or Carp::croak "subtype specified without type";	915	defined $object_type or Carp::croak "subtype specified without type";
546	my $object_subtype = shift @arg;	916	my $object_subtype = shift @arg;
547	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	917	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
548		918
549	} elsif ($type eq "package") {	919	} elsif ($type eq "package") {
550	my $pkg = shift @arg;	920	my $pkg = shift @arg;
551		921
552	while (my ($name, $id) = each %cb_id) {	922	while (my ($name, $id) = each %cb_id) {
…		…
581	_attach $registry, $klass, @attach;	951	_attach $registry, $klass, @attach;
582	}	952	}
583		953
584	$obj->{$name} = \%arg;	954	$obj->{$name} = \%arg;
585	} else {	955	} else {
586	warn "object uses attachment '$name' that is not available, postponing.\n";	956	warn "object uses attachment '$name' which is not available, postponing.\n";
587	}	957	}
588		958
589	$obj->{_attachment}{$name} = undef;	959	$obj->{_attachment}{$name} = undef;
590	}	960	}
591		961
…		…
593	if (ref $_[0]) {	963	if (ref $_[0]) {
594	_object_attach @_;	964	_object_attach @_;
595	} else {	965	} else {
596	_attach shift->_attach_registry, @_;	966	_attach shift->_attach_registry, @_;
597	}	967	}
		968	_recalc_want;
598	};	969	};
599		970
600	# all those should be optimised	971	# all those should be optimised
601	sub cf::attachable::detach {	972	sub cf::attachable::detach {
602	my ($obj, $name) = @_;	973	my ($obj, $name) = @_;
…		…
605	delete $obj->{_attachment}{$name};	976	delete $obj->{_attachment}{$name};
606	reattach ($obj);	977	reattach ($obj);
607	} else {	978	} else {
608	Carp::croak "cannot, currently, detach class attachments";	979	Carp::croak "cannot, currently, detach class attachments";
609	}	980	}
		981	_recalc_want;
610	};	982	};
611		983
612	sub cf::attachable::attached {	984	sub cf::attachable::attached {
613	my ($obj, $name) = @_;	985	my ($obj, $name) = @_;
614		986
…		…
629	";	1001	";
630	die if $@;	1002	die if $@;
631	}	1003	}
632		1004
633	our $override;	1005	our $override;
634	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1006	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
635		1007
636	sub override {	1008	sub override {
637	$override = 1;	1009	$override = 1;
638	@invoke_results = ();	1010	@INVOKE_RESULTS = (@_);
639	}	1011	}
640		1012
641	sub do_invoke {	1013	sub do_invoke {
642	my $event = shift;	1014	my $event = shift;
643	my $callbacks = shift;	1015	my $callbacks = shift;
644		1016
645	@invoke_results = ();	1017	@INVOKE_RESULTS = ();
646		1018
647	local $override;	1019	local $override;
648		1020
649	for (@$callbacks) {	1021	for (@$callbacks) {
650	eval { &{$_->[1]} };	1022	eval { &{$_->[1]} };
…		…
659	}	1031	}
660		1032
661	0	1033	0
662	}	1034	}
663		1035
664	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1036	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
665		1037
666	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1038	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
667		1039
668	Generate an object-specific event with the given arguments.	1040	Generate an object-specific event with the given arguments.
669		1041
670	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1042	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
671	removed in future versions), and there is no public API to access override	1043	removed in future versions), and there is no public API to access override
672	results (if you must, access C<@cf::invoke_results> directly).	1044	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
673		1045
674	=back	1046	=back
675		1047
676	=cut	1048	=cut
677		1049
678	#############################################################################	1050	#############################################################################
679	# object support	1051	# object support
		1052
		1053	sub _object_equal($$);
		1054	sub _object_equal($$) {
		1055	my ($a, $b) = @_;
		1056
		1057	return 0 unless (ref $a) eq (ref $b);
		1058
		1059	if ("HASH" eq ref $a) {
		1060	my @ka = keys %$a;
		1061	my @kb = keys %$b;
		1062
		1063	return 0 if @ka != @kb;
		1064
		1065	for (0 .. $#ka) {
		1066	return 0 unless $ka[$_] eq $kb[$_];
		1067	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1068	}
		1069
		1070	} elsif ("ARRAY" eq ref $a) {
		1071
		1072	return 0 if @$a != @$b;
		1073
		1074	for (0 .. $#$a) {
		1075	return 0 unless _object_equal $a->[$_], $b->[$_];
		1076	}
		1077
		1078	} elsif ($a ne $b) {
		1079	return 0;
		1080	}
		1081
		1082	1
		1083	}
		1084
		1085	our $SLOW_MERGES;#d#
		1086	sub _can_merge {
		1087	my ($ob1, $ob2) = @_;
		1088
		1089	++$SLOW_MERGES;#d#
		1090
		1091	# we do the slow way here
		1092	return _object_equal $ob1, $ob2
		1093	}
680		1094
681	sub reattach {	1095	sub reattach {
682	# basically do the same as instantiate, without calling instantiate	1096	# basically do the same as instantiate, without calling instantiate
683	my ($obj) = @_;	1097	my ($obj) = @_;
		1098
		1099	# no longer needed after getting rid of delete_package?
		1100	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
684		1101
685	my $registry = $obj->registry;	1102	my $registry = $obj->registry;
686		1103
687	@$registry = ();	1104	@$registry = ();
688		1105
…		…
703	cf::attachable->attach (	1120	cf::attachable->attach (
704	prio => -1000000,	1121	prio => -1000000,
705	on_instantiate => sub {	1122	on_instantiate => sub {
706	my ($obj, $data) = @_;	1123	my ($obj, $data) = @_;
707		1124
708	$data = from_json $data;	1125	$data = decode_json $data;
709		1126
710	for (@$data) {	1127	for (@$data) {
711	my ($name, $args) = @$_;	1128	my ($name, $args) = @$_;
712		1129
713	$obj->attach ($name, %{$args || {} });	1130	$obj->attach ($name, %{$args || {} });
…		…
729	sub object_freezer_save {	1146	sub object_freezer_save {
730	my ($filename, $rdata, $objs) = @_;	1147	my ($filename, $rdata, $objs) = @_;
731		1148
732	sync_job {	1149	sync_job {
733	if (length $$rdata) {	1150	if (length $$rdata) {
		1151	utf8::decode (my $decname = $filename);
734	warn sprintf "saving %s (%d,%d)\n",	1152	warn sprintf "saving %s (%d,%d)\n",
735	$filename, length $$rdata, scalar @$objs;	1153	$decname, length $$rdata, scalar @$objs;
736		1154
737	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1155	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
738	chmod SAVE_MODE, $fh;	1156	aio_chmod $fh, SAVE_MODE;
739	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1157	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
740	aio_fsync $fh;	1158	aio_fsync $fh if $cf::USE_FSYNC;
741	close $fh;	1159	aio_close $fh;
742		1160
743	if (@$objs) {	1161	if (@$objs) {
744	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1162	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
745	chmod SAVE_MODE, $fh;	1163	aio_chmod $fh, SAVE_MODE;
746	my $data = Storable::nfreeze { version => 1, objs => $objs };	1164	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
747	aio_write $fh, 0, (length $data), $data, 0;	1165	aio_write $fh, 0, (length $data), $data, 0;
748	aio_fsync $fh;	1166	aio_fsync $fh if $cf::USE_FSYNC;
749	close $fh;	1167	aio_close $fh;
750	aio_rename "$filename.pst~", "$filename.pst";	1168	aio_rename "$filename.pst~", "$filename.pst";
751	}	1169	}
752	} else {	1170	} else {
753	aio_unlink "$filename.pst";	1171	aio_unlink "$filename.pst";
754	}	1172	}
…		…
759	}	1177	}
760	} else {	1178	} else {
761	aio_unlink $filename;	1179	aio_unlink $filename;
762	aio_unlink "$filename.pst";	1180	aio_unlink "$filename.pst";
763	}	1181	}
764	}	1182	};
765	}	1183	}
766		1184
767	sub object_freezer_as_string {	1185	sub object_freezer_as_string {
768	my ($rdata, $objs) = @_;	1186	my ($rdata, $objs) = @_;
769		1187
…		…
781	or return;	1199	or return;
782		1200
783	unless (aio_stat "$filename.pst") {	1201	unless (aio_stat "$filename.pst") {
784	(aio_load "$filename.pst", $av) >= 0	1202	(aio_load "$filename.pst", $av) >= 0
785	or return;	1203	or return;
		1204
786	$av = eval { (Storable::thaw $av)->{objs} };	1205	my $st = eval { Coro::Storable::thaw $av };
		1206	$av = $st->{objs};
787	}	1207	}
788		1208
		1209	utf8::decode (my $decname = $filename);
789	warn sprintf "loading %s (%d)\n",	1210	warn sprintf "loading %s (%d,%d)\n",
790	$filename, length $data, scalar @{$av || []};#d#	1211	$decname, length $data, scalar @{$av || []};
		1212
791	return ($data, $av);	1213	($data, $av)
792	}	1214	}
		1215
		1216	=head2 COMMAND CALLBACKS
		1217
		1218	=over 4
		1219
		1220	=cut
793		1221
794	#############################################################################	1222	#############################################################################
795	# command handling &c	1223	# command handling &c
796		1224
797	=item cf::register_command $name => \&callback($ob,$args);	1225	=item cf::register_command $name => \&callback($ob,$args);
…		…
810	push @{ $COMMAND{$name} }, [$caller, $cb];	1238	push @{ $COMMAND{$name} }, [$caller, $cb];
811	}	1239	}
812		1240
813	=item cf::register_extcmd $name => \&callback($pl,$packet);	1241	=item cf::register_extcmd $name => \&callback($pl,$packet);
814		1242
815	Register a callbackf ro execution when the client sends an extcmd packet.	1243	Register a callback for execution when the client sends an (synchronous)
		1244	extcmd packet. Ext commands will be processed in the order they are
		1245	received by the server, like other user commands. The first argument is
		1246	the logged-in player. Ext commands can only be processed after a player
		1247	has logged in successfully.
816		1248
817	If the callback returns something, it is sent back as if reply was being	1249	If the callback returns something, it is sent back as if reply was being
818	called.	1250	called.
819		1251
		1252	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1253
		1254	Register a callback for execution when the client sends an (asynchronous)
		1255	exticmd packet. Exti commands are processed by the server as soon as they
		1256	are received, i.e. out of order w.r.t. other commands. The first argument
		1257	is a client socket. Exti commands can be received anytime, even before
		1258	log-in.
		1259
		1260	If the callback returns something, it is sent back as if reply was being
		1261	called.
		1262
820	=cut	1263	=cut
821		1264
822	sub register_extcmd {	1265	sub register_extcmd {
823	my ($name, $cb) = @_;	1266	my ($name, $cb) = @_;
824		1267
825	$EXTCMD{$name} = $cb;	1268	$EXTCMD{$name} = $cb;
		1269	}
		1270
		1271	sub register_exticmd {
		1272	my ($name, $cb) = @_;
		1273
		1274	$EXTICMD{$name} = $cb;
826	}	1275	}
827		1276
828	cf::player->attach (	1277	cf::player->attach (
829	on_command => sub {	1278	on_command => sub {
830	my ($pl, $name, $params) = @_;	1279	my ($pl, $name, $params) = @_;
…		…
839	cf::override;	1288	cf::override;
840	},	1289	},
841	on_extcmd => sub {	1290	on_extcmd => sub {
842	my ($pl, $buf) = @_;	1291	my ($pl, $buf) = @_;
843		1292
844	my $msg = eval { from_json $buf };	1293	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
845		1294
846	if (ref $msg) {	1295	if (ref $msg) {
		1296	my ($type, $reply, @payload) =
		1297	"ARRAY" eq ref $msg
		1298	? @$msg
		1299	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1300
		1301	my @reply;
		1302
847	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1303	if (my $cb = $EXTCMD{$type}) {
848	if (my %reply = $cb->($pl, $msg)) {	1304	@reply = $cb->($pl, @payload);
849	$pl->ext_reply ($msg->{msgid}, %reply);
850	}
851	}	1305	}
		1306
		1307	$pl->ext_reply ($reply, @reply)
		1308	if $reply;
		1309
852	} else {	1310	} else {
853	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1311	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
854	}	1312	}
855		1313
856	cf::override;	1314	cf::override;
857	},	1315	},
858	);	1316	);
859		1317
860	sub load_extension {
861	my ($path) = @_;
862
863	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
864	my $base = $1;
865	my $pkg = $1;
866	$pkg =~ s/[^[:word:]]/_/g;
867	$pkg = "ext::$pkg";
868
869	warn "... loading '$path' into '$pkg'\n";
870
871	open my $fh, "<:utf8", $path
872	or die "$path: $!";
873
874	my $source =
875	"package $pkg; use strict; use utf8;\n"
876	. "#line 1 \"$path\"\n{\n"
877	. (do { local $/; <$fh> })
878	. "\n};\n1";
879
880	unless (eval $source) {
881	my $msg = $@ ? "$path: $@\n"
882	: "extension disabled.\n";
883	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
884	warn $@;
885	warn "mandatory extension failed to load, exiting.\n";
886	exit 1;
887	}
888	die $@;
889	}
890
891	push @EXTS, $pkg;
892	}
893
894	sub load_extensions {	1318	sub load_extensions {
		1319	cf::sync_job {
		1320	my %todo;
		1321
895	for my $ext (<$LIBDIR/*.ext>) {	1322	for my $path (<$LIBDIR/*.ext>) {
896	next unless -r $ext;	1323	next unless -r $path;
897	eval {	1324
898	load_extension $ext;	1325	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1326	my $base = $1;
		1327	my $pkg = $1;
		1328	$pkg =~ s/[^[:word:]]/_/g;
		1329	$pkg = "ext::$pkg";
		1330
		1331	open my $fh, "<:utf8", $path
		1332	or die "$path: $!";
		1333
		1334	my $source = do { local $/; <$fh> };
		1335
		1336	my %ext = (
		1337	path => $path,
		1338	base => $base,
		1339	pkg => $pkg,
		1340	);
		1341
		1342	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1343	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1344
		1345	$ext{source} =
		1346	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1347	. "#line 1 \"$path\"\n{\n"
		1348	. $source
		1349	. "\n};\n1";
		1350
		1351	$todo{$base} = \%ext;
		1352	}
		1353
		1354	my %done;
		1355	while (%todo) {
		1356	my $progress;
		1357
		1358	while (my ($k, $v) = each %todo) {
		1359	for (split /,\s*/, $v->{meta}{depends}) {
		1360	goto skip
		1361	unless exists $done{$_};
		1362	}
		1363
		1364	warn "... loading '$k' into '$v->{pkg}'\n";
		1365
		1366	unless (eval $v->{source}) {
		1367	my $msg = $@ ? "$v->{path}: $@\n"
		1368	: "$v->{base}: extension inactive.\n";
		1369
		1370	if (exists $v->{meta}{mandatory}) {
		1371	warn $msg;
		1372	cf::cleanup "mandatory extension failed to load, exiting.";
		1373	}
		1374
		1375	warn $msg;
		1376	}
		1377
		1378	$done{$k} = delete $todo{$k};
		1379	push @EXTS, $v->{pkg};
		1380	$progress = 1;
899	1	1381	}
900	} or warn "$ext not loaded: $@";	1382
		1383	skip:
		1384	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1385	unless $progress;
		1386	}
901	}	1387	};
902	}	1388	}
903		1389
904	#############################################################################	1390	#############################################################################
905		1391
		1392	=back
		1393
906	=head2 CORE EXTENSIONS	1394	=head2 CORE EXTENSIONS
907		1395
908	Functions and methods that extend core crossfire objects.	1396	Functions and methods that extend core deliantra objects.
909		1397
910	=cut	1398	=cut
911		1399
912	package cf::player;	1400	package cf::player;
913		1401
…		…
915		1403
916	=head3 cf::player	1404	=head3 cf::player
917		1405
918	=over 4	1406	=over 4
919		1407
		1408	=item cf::player::num_playing
		1409
		1410	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1411
		1412	=cut
		1413
		1414	sub num_playing {
		1415	scalar grep
		1416	$_->ob->map
		1417	&& !$_->hidden
		1418	&& !$_->ob->flag (cf::FLAG_WIZ),
		1419	cf::player::list
		1420	}
		1421
920	=item cf::player::find $login	1422	=item cf::player::find $login
921		1423
922	Returns the given player object, loading it if necessary (might block).	1424	Returns the given player object, loading it if necessary (might block).
923		1425
924	=cut	1426	=cut
925		1427
926	sub playerdir($) {	1428	sub playerdir($) {
927	cf::localdir	1429	"$PLAYERDIR/"
928	. "/"
929	. cf::playerdir
930	. "/"
931	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1430	. (ref $_[0] ? $_[0]->ob->name : $_[0])
932	}	1431	}
933		1432
934	sub path($) {	1433	sub path($) {
935	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1434	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
936		1435
937	(playerdir $login) . "/$login.pl"	1436	(playerdir $login) . "/playerdata"
938	}	1437	}
939		1438
940	sub find_active($) {	1439	sub find_active($) {
941	$cf::PLAYER{$_[0]}	1440	$cf::PLAYER{$_[0]}
942	and $cf::PLAYER{$_[0]}->active	1441	and $cf::PLAYER{$_[0]}->active
…		…
945		1444
946	sub exists($) {	1445	sub exists($) {
947	my ($login) = @_;	1446	my ($login) = @_;
948		1447
949	$cf::PLAYER{$login}	1448	$cf::PLAYER{$login}
950	or cf::sync_job { !aio_stat $login }	1449	or cf::sync_job { !aio_stat path $login }
951	}	1450	}
952		1451
953	sub find($) {	1452	sub find($) {
954	return $cf::PLAYER{$_[0]} || do {	1453	return $cf::PLAYER{$_[0]} || do {
955	my $login = $_[0];	1454	my $login = $_[0];
956		1455
957	my $guard = cf::lock_acquire "user_find:$login";	1456	my $guard = cf::lock_acquire "user_find:$login";
958		1457
959	$cf::PLAYER{$_[0]} || do {	1458	$cf::PLAYER{$_[0]} || do {
960	my $pl = load_pl path $login	1459	# rename old playerfiles to new ones
		1460	#TODO: remove when no longer required
		1461	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1462	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1463	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1464	aio_unlink +(playerdir $login) . "/$login.pl";
		1465
		1466	my $f = new_from_file cf::object::thawer path $login
961	or return;	1467	or return;
		1468
		1469	my $pl = cf::player::load_pl $f
		1470	or return;
		1471
		1472	local $cf::PLAYER_LOADING{$login} = $pl;
		1473	$f->resolve_delayed_derefs;
962	$cf::PLAYER{$login} = $pl	1474	$cf::PLAYER{$login} = $pl
963	}	1475	}
964	}	1476	}
965	}	1477	}
966		1478
…		…
975	return if $pl->{deny_save};	1487	return if $pl->{deny_save};
976		1488
977	aio_mkdir playerdir $pl, 0770;	1489	aio_mkdir playerdir $pl, 0770;
978	$pl->{last_save} = $cf::RUNTIME;	1490	$pl->{last_save} = $cf::RUNTIME;
979		1491
		1492	cf::get_slot 0.01;
		1493
980	$pl->save_pl ($path);	1494	$pl->save_pl ($path);
981	Coro::cede;	1495	cf::cede_to_tick;
982	}	1496	}
983		1497
984	sub new($) {	1498	sub new($) {
985	my ($login) = @_;	1499	my ($login) = @_;
986		1500
…		…
992	$cf::PLAYER{$login} = $self;	1506	$cf::PLAYER{$login} = $self;
993		1507
994	$self	1508	$self
995	}	1509	}
996		1510
		1511	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1512
		1513	=cut
		1514
		1515	sub send_msg {
		1516	my $ns = shift->ns
		1517	or return;
		1518	$ns->send_msg (@_);
		1519	}
		1520
997	=item $pl->quit_character	1521	=item $pl->quit_character
998		1522
999	Nukes the player without looking back. If logged in, the connection will	1523	Nukes the player without looking back. If logged in, the connection will
1000	be destroyed. May block for a long time.	1524	be destroyed. May block for a long time.
1001		1525
1002	=cut	1526	=cut
1003		1527
1004	sub quit_character {	1528	sub quit_character {
1005	my ($pl) = @_;	1529	my ($pl) = @_;
1006		1530
		1531	my $name = $pl->ob->name;
		1532
1007	$pl->{deny_save} = 1;	1533	$pl->{deny_save} = 1;
1008	$pl->password ("*"); # this should lock out the player until we nuked the dir	1534	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1009		1535
1010	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1536	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1011	$pl->deactivate;	1537	$pl->deactivate;
		1538	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1539	$pl->ob->check_score;
1012	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1540	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1013	$pl->ns->destroy if $pl->ns;	1541	$pl->ns->destroy if $pl->ns;
1014		1542
1015	my $path = playerdir $pl;	1543	my $path = playerdir $pl;
1016	my $temp = "$path~$cf::RUNTIME~deleting~";	1544	my $temp = "$path~$cf::RUNTIME~deleting~";
1017	aio_rename $path, $temp;	1545	aio_rename $path, $temp;
1018	delete $cf::PLAYER{$pl->ob->name};	1546	delete $cf::PLAYER{$pl->ob->name};
1019	$pl->destroy;	1547	$pl->destroy;
		1548
		1549	my $prefix = qr<^~\Q$name\E/>;
		1550
		1551	# nuke player maps
		1552	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1553
1020	IO::AIO::aio_rmtree $temp;	1554	IO::AIO::aio_rmtree $temp;
		1555	}
		1556
		1557	=item $pl->kick
		1558
		1559	Kicks a player out of the game. This destroys the connection.
		1560
		1561	=cut
		1562
		1563	sub kick {
		1564	my ($pl, $kicker) = @_;
		1565
		1566	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1567	$pl->killer ("kicked");
		1568	$pl->ns->destroy;
1021	}	1569	}
1022		1570
1023	=item cf::player::list_logins	1571	=item cf::player::list_logins
1024		1572
1025	Returns am arrayref of all valid playernames in the system, can take a	1573	Returns am arrayref of all valid playernames in the system, can take a
1026	while and may block, so not sync_job-capable, ever.	1574	while and may block, so not sync_job-capable, ever.
1027		1575
1028	=cut	1576	=cut
1029		1577
1030	sub list_logins {	1578	sub list_logins {
1031	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1579	my $dirs = aio_readdir $PLAYERDIR
1032	or return [];	1580	or return [];
1033		1581
1034	my @logins;	1582	my @logins;
1035		1583
1036	for my $login (@$dirs) {	1584	for my $login (@$dirs) {
		1585	my $path = path $login;
		1586
		1587	# a .pst is a dead give-away for a valid player
		1588	# if no pst file found, open and chekc for blocked users
		1589	if (aio_stat "$path.pst") {
1037	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1590	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1038	aio_read $fh, 0, 512, my $buf, 0 or next;	1591	aio_read $fh, 0, 512, my $buf, 0 or next;
1039	$buf !~ /^password -------------$/m or next; # official not-valid tag	1592	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1593	}
1040		1594
1041	utf8::decode $login;	1595	utf8::decode $login;
1042	push @logins, $login;	1596	push @logins, $login;
1043	}	1597	}
1044		1598
…		…
1052		1606
1053	=cut	1607	=cut
1054		1608
1055	sub maps($) {	1609	sub maps($) {
1056	my ($pl) = @_;	1610	my ($pl) = @_;
		1611
		1612	$pl = ref $pl ? $pl->ob->name : $pl;
1057		1613
1058	my $files = aio_readdir playerdir $pl	1614	my $files = aio_readdir playerdir $pl
1059	or return;	1615	or return;
1060		1616
1061	my @paths;	1617	my @paths;
…		…
1063	for (@$files) {	1619	for (@$files) {
1064	utf8::decode $_;	1620	utf8::decode $_;
1065	next if /\.(?:pl|pst)$/;	1621	next if /\.(?:pl|pst)$/;
1066	next unless /^$PATH_SEP/o;	1622	next unless /^$PATH_SEP/o;
1067		1623
1068	s/\.map$//;	1624	push @paths, cf::map::normalise "~$pl/$_";
1069	push @paths, "~" . $pl->ob->name . "/" . $_;
1070	}	1625	}
1071		1626
1072	\@paths	1627	\@paths
1073	}	1628	}
1074		1629
		1630	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1631
		1632	Expand deliantra pod fragments into protocol xml.
		1633
1075	=item $player->ext_reply ($msgid, $msgtype, %msg)	1634	=item $player->ext_reply ($msgid, @msg)
1076		1635
1077	Sends an ext reply to the player.	1636	Sends an ext reply to the player.
1078		1637
1079	=cut	1638	=cut
1080		1639
1081	sub ext_reply($$$%) {	1640	sub ext_reply($$@) {
1082	my ($self, $id, %msg) = @_;	1641	my ($self, $id, @msg) = @_;
1083		1642
1084	$msg{msgid} = $id;	1643	$self->ns->ext_reply ($id, @msg)
1085
1086	$self->send ("ext " . cf::to_json \%msg);
1087	}	1644	}
1088		1645
1089	package cf;	1646	=item $player->ext_msg ($type, @msg)
		1647
		1648	Sends an ext event to the client.
		1649
		1650	=cut
		1651
		1652	sub ext_msg($$@) {
		1653	my ($self, $type, @msg) = @_;
		1654
		1655	$self->ns->ext_msg ($type, @msg);
		1656	}
		1657
		1658	=head3 cf::region
		1659
		1660	=over 4
		1661
		1662	=cut
		1663
		1664	package cf::region;
		1665
		1666	=item cf::region::find_by_path $path
		1667
		1668	Tries to decuce the likely region for a map knowing only its path.
		1669
		1670	=cut
		1671
		1672	sub find_by_path($) {
		1673	my ($path) = @_;
		1674
		1675	my ($match, $specificity);
		1676
		1677	for my $region (list) {
		1678	if ($region->{match} && $path =~ $region->{match}) {
		1679	($match, $specificity) = ($region, $region->specificity)
		1680	if $region->specificity > $specificity;
		1681	}
		1682	}
		1683
		1684	$match
		1685	}
1090		1686
1091	=back	1687	=back
1092
1093		1688
1094	=head3 cf::map	1689	=head3 cf::map
1095		1690
1096	=over 4	1691	=over 4
1097		1692
…		…
1101		1696
1102	use Fcntl;	1697	use Fcntl;
1103	use Coro::AIO;	1698	use Coro::AIO;
1104		1699
1105	use overload	1700	use overload
1106	'""' => \&as_string;	1701	'""' => \&as_string,
		1702	fallback => 1;
1107		1703
1108	our $MAX_RESET = 3600;	1704	our $MAX_RESET = 3600;
1109	our $DEFAULT_RESET = 3000;	1705	our $DEFAULT_RESET = 3000;
1110		1706
1111	sub generate_random_map {	1707	sub generate_random_map {
1112	my ($self, $rmp) = @_;	1708	my ($self, $rmp) = @_;
		1709
		1710	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1113		1711
1114	# mit "rum" bekleckern, nicht	1712	# mit "rum" bekleckern, nicht
1115	$self->_create_random_map (	1713	$self->_create_random_map (
1116	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1714	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1117	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1715	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
…		…
1125	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1723	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1126	(cf::region::find $rmp->{region}), $rmp->{custom}	1724	(cf::region::find $rmp->{region}), $rmp->{custom}
1127	)	1725	)
1128	}	1726	}
1129		1727
		1728	=item cf::map->register ($regex, $prio)
		1729
		1730	Register a handler for the map path matching the given regex at the
		1731	givne priority (higher is better, built-in handlers have priority 0, the
		1732	default).
		1733
		1734	=cut
		1735
1130	sub register {	1736	sub register {
1131	my (undef, $regex) = @_;	1737	my (undef, $regex, $prio) = @_;
1132	my $pkg = caller;	1738	my $pkg = caller;
1133		1739
1134	no strict;	1740	no strict;
1135	push @{"$pkg\::ISA"}, __PACKAGE__;	1741	push @{"$pkg\::ISA"}, __PACKAGE__;
1136		1742
1137	$EXT_MAP{$pkg} = qr<$regex>;	1743	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1138	}	1744	}
1139		1745
1140	# also paths starting with '/'	1746	# also paths starting with '/'
1141	$EXT_MAP{"cf::map"} = qr{^(?=/)};	1747	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1748
		1749	sub thawer_merge {
		1750	my ($self, $merge) = @_;
		1751
		1752	# we have to keep some variables in memory intact
		1753	local $self->{path};
		1754	local $self->{load_path};
		1755
		1756	$self->SUPER::thawer_merge ($merge);
		1757	}
1142		1758
1143	sub normalise {	1759	sub normalise {
1144	my ($path, $base) = @_;	1760	my ($path, $base) = @_;
		1761
		1762	$path = "$path"; # make sure its a string
		1763
		1764	$path =~ s/\.map$//;
1145		1765
1146	# map plan:	1766	# map plan:
1147	#	1767	#
1148	# /! non-realised random map exit (special hack!)	1768	# /! non-realised random map exit (special hack!)
1149	# {... are special paths that are not being touched	1769	# {... are special paths that are not being touched
…		…
1177		1797
1178	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	1798	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1179		1799
1180	$path = normalise $path, $base;	1800	$path = normalise $path, $base;
1181		1801
1182	for my $pkg (keys %EXT_MAP) {	1802	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1183	if ($path =~ $EXT_MAP{$pkg}) {	1803	if ($path =~ $EXT_MAP{$pkg}[1]) {
1184	my $self = bless cf::map::new, $pkg;	1804	my $self = bless cf::map::new, $pkg;
1185	$self->{path} = $path; $self->path ($path);	1805	$self->{path} = $path; $self->path ($path);
1186	$self->init; # pass $1 etc.	1806	$self->init; # pass $1 etc.
1187	return $self;	1807	return $self;
1188	}	1808	}
1189	}	1809	}
1190		1810
1191	Carp::carp "unable to resolve path '$path'.";	1811	Carp::cluck "unable to resolve path '$path' (base '$base').";
1192	()	1812	()
1193	}	1813	}
1194		1814
1195	sub init {	1815	sub init {
1196	my ($self) = @_;	1816	my ($self) = @_;
…		…
1211		1831
1212	# the original (read-only) location	1832	# the original (read-only) location
1213	sub load_path {	1833	sub load_path {
1214	my ($self) = @_;	1834	my ($self) = @_;
1215		1835
1216	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1836	"$MAPDIR/$self->{path}.map"
1217	}	1837	}
1218		1838
1219	# the temporary/swap location	1839	# the temporary/swap location
1220	sub save_path {	1840	sub save_path {
1221	my ($self) = @_;	1841	my ($self) = @_;
1222		1842
1223	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1843	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1224	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1844	"$TMPDIR/$path.map"
1225	}	1845	}
1226		1846
1227	# the unique path, undef == no special unique path	1847	# the unique path, undef == no special unique path
1228	sub uniq_path {	1848	sub uniq_path {
1229	my ($self) = @_;	1849	my ($self) = @_;
1230		1850
1231	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1851	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1232	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1852	"$UNIQUEDIR/$path"
1233	}	1853	}
1234		1854
1235	# and all this just because we cannot iterate over	1855	# and all this just because we cannot iterate over
1236	# all maps in C++...	1856	# all maps in C++...
1237	sub change_all_map_light {	1857	sub change_all_map_light {
…		…
1239		1859
1240	$_->change_map_light ($change)	1860	$_->change_map_light ($change)
1241	for grep $_->outdoor, values %cf::MAP;	1861	for grep $_->outdoor, values %cf::MAP;
1242	}	1862	}
1243		1863
		1864	sub decay_objects {
		1865	my ($self) = @_;
		1866
		1867	return if $self->{deny_reset};
		1868
		1869	$self->do_decay_objects;
		1870	}
		1871
1244	sub unlink_save {	1872	sub unlink_save {
1245	my ($self) = @_;	1873	my ($self) = @_;
1246		1874
1247	utf8::encode (my $save = $self->save_path);	1875	utf8::encode (my $save = $self->save_path);
1248	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;	1876	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1249	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";	1877	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1250	}	1878	}
1251		1879
1252	sub load_header_from($) {	1880	sub load_header_from($) {
1253	my ($self, $path) = @_;	1881	my ($self, $path) = @_;
1254		1882
1255	utf8::encode $path;	1883	utf8::encode $path;
1256	aio_open $path, O_RDONLY, 0	1884	my $f = new_from_file cf::object::thawer $path
1257	or return;	1885	or return;
1258		1886
1259	$self->_load_header ($path)	1887	$self->_load_header ($f)
1260	or return;	1888	or return;
1261		1889
		1890	local $MAP_LOADING{$self->{path}} = $self;
		1891	$f->resolve_delayed_derefs;
		1892
1262	$self->{load_path} = $path;	1893	$self->{load_path} = $path;
1263		1894
1264	1	1895	1
1265	}	1896	}
1266		1897
1267	sub load_orig {	1898	sub load_header_orig {
1268	my ($self) = @_;	1899	my ($self) = @_;
1269		1900
1270	$self->load_header_from ($self->load_path)	1901	$self->load_header_from ($self->load_path)
1271	}	1902	}
1272		1903
1273	sub load_temp {	1904	sub load_header_temp {
1274	my ($self) = @_;	1905	my ($self) = @_;
1275		1906
1276	$self->load_header_from ($self->save_path)	1907	$self->load_header_from ($self->save_path)
		1908	}
		1909
		1910	sub prepare_temp {
		1911	my ($self) = @_;
		1912
		1913	$self->last_access ((delete $self->{last_access})
		1914	|| $cf::RUNTIME); #d#
		1915	# safety
		1916	$self->{instantiate_time} = $cf::RUNTIME
		1917	if $self->{instantiate_time} > $cf::RUNTIME;
		1918	}
		1919
		1920	sub prepare_orig {
		1921	my ($self) = @_;
		1922
		1923	$self->{load_original} = 1;
		1924	$self->{instantiate_time} = $cf::RUNTIME;
		1925	$self->last_access ($cf::RUNTIME);
		1926	$self->instantiate;
1277	}	1927	}
1278		1928
1279	sub load_header {	1929	sub load_header {
1280	my ($self) = @_;	1930	my ($self) = @_;
1281		1931
1282	if ($self->load_temp) {	1932	if ($self->load_header_temp) {
1283	$self->last_access ((delete $self->{last_access})	1933	$self->prepare_temp;
1284	|| $cf::RUNTIME); #d#
1285	# safety
1286	$self->{instantiate_time} = $cf::RUNTIME
1287	if $self->{instantiate_time} > $cf::RUNTIME;
1288	} else {	1934	} else {
1289	$self->load_orig	1935	$self->load_header_orig
1290	or return;	1936	or return;
1291		1937	$self->prepare_orig;
1292	$self->{load_original} = 1;
1293	$self->{instantiate_time} = $cf::RUNTIME;
1294	$self->last_access ($cf::RUNTIME);
1295	$self->instantiate;
1296	}	1938	}
		1939
		1940	$self->{deny_reset} = 1
		1941	if $self->no_reset;
		1942
		1943	$self->default_region (cf::region::find_by_path $self->{path})
		1944	unless $self->default_region;
1297		1945
1298	1	1946	1
1299	}	1947	}
1300		1948
1301	sub find;	1949	sub find;
1302	sub find {	1950	sub find {
1303	my ($path, $origin) = @_;	1951	my ($path, $origin) = @_;
1304		1952
1305	$path = normalise $path, $origin && $origin->path;	1953	$path = normalise $path, $origin && $origin->path;
1306		1954
		1955	cf::lock_wait "map_data:$path";#d#remove
1307	cf::lock_wait "map_find:$path";	1956	cf::lock_wait "map_find:$path";
1308		1957
1309	$cf::MAP{$path} || do {	1958	$cf::MAP{$path} || do {
		1959	my $guard1 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1310	my $guard = cf::lock_acquire "map_find:$path";	1960	my $guard2 = cf::lock_acquire "map_find:$path";
		1961
1311	my $map = new_from_path cf::map $path	1962	my $map = new_from_path cf::map $path
1312	or return;	1963	or return;
1313		1964
1314	$map->{last_save} = $cf::RUNTIME;	1965	$map->{last_save} = $cf::RUNTIME;
1315		1966
1316	$map->load_header	1967	$map->load_header
1317	or return;	1968	or return;
1318		1969
1319	if ($map->should_reset) {	1970	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1971	# doing this can freeze the server in a sync job, obviously
		1972	#$cf::WAIT_FOR_TICK->wait;
		1973	undef $guard2;
		1974	undef $guard1;
1320	$map->reset;	1975	$map->reset;
1321	undef $guard;
1322	$map = find $path	1976	return find $path;
1323	or return;
1324	}	1977	}
1325		1978
1326	$cf::MAP{$path} = $map	1979	$cf::MAP{$path} = $map
1327	}	1980	}
1328	}	1981	}
		1982
		1983	sub pre_load { }
		1984	sub post_load { }
1329		1985
1330	sub load {	1986	sub load {
1331	my ($self) = @_;	1987	my ($self) = @_;
1332		1988
		1989	local $self->{deny_reset} = 1; # loading can take a long time
		1990
1333	my $path = $self->{path};	1991	my $path = $self->{path};
		1992
		1993	{
1334	my $guard = cf::lock_acquire "map_load:$path";	1994	my $guard = cf::lock_acquire "map_data:$path";
1335		1995
		1996	return unless $self->valid;
1336	return if $self->in_memory != cf::MAP_SWAPPED;	1997	return unless $self->in_memory == cf::MAP_SWAPPED;
1337		1998
1338	$self->in_memory (cf::MAP_LOADING);	1999	$self->in_memory (cf::MAP_LOADING);
1339		2000
1340	$self->alloc;	2001	$self->alloc;
1341	$self->_load_objects ($self->{load_path}, 1)	2002
		2003	$self->pre_load;
		2004	cf::cede_to_tick;
		2005
		2006	my $f = new_from_file cf::object::thawer $self->{load_path};
		2007	$f->skip_block;
		2008	$self->_load_objects ($f)
1342	or return;	2009	or return;
1343		2010
1344	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2011	$self->post_load_original
1345	if delete $self->{load_original};	2012	if delete $self->{load_original};
1346		2013
1347	if (my $uniq = $self->uniq_path) {	2014	if (my $uniq = $self->uniq_path) {
1348	utf8::encode $uniq;	2015	utf8::encode $uniq;
1349	if (aio_open $uniq, O_RDONLY, 0) {	2016	unless (aio_stat $uniq) {
		2017	if (my $f = new_from_file cf::object::thawer $uniq) {
1350	$self->clear_unique_items;	2018	$self->clear_unique_items;
1351	$self->_load_objects ($uniq, 0);	2019	$self->_load_objects ($f);
		2020	$f->resolve_delayed_derefs;
		2021	}
1352	}	2022	}
1353	}	2023	}
1354		2024
1355	Coro::cede;	2025	$f->resolve_delayed_derefs;
1356		2026
		2027	cf::cede_to_tick;
1357	# now do the right thing for maps	2028	# now do the right thing for maps
1358	$self->link_multipart_objects;	2029	$self->link_multipart_objects;
1359
1360	unless ($self->{deny_activate}) {
1361	$self->decay_objects;
1362	$self->fix_auto_apply;
1363	$self->update_buttons;
1364	Coro::cede;
1365	$self->set_darkness_map;
1366	$self->difficulty ($self->estimate_difficulty)	2030	$self->difficulty ($self->estimate_difficulty)
1367	unless $self->difficulty;	2031	unless $self->difficulty;
1368	Coro::cede;	2032	cf::cede_to_tick;
		2033
		2034	unless ($self->{deny_activate}) {
		2035	$self->decay_objects;
		2036	$self->fix_auto_apply;
		2037	$self->update_buttons;
		2038	cf::cede_to_tick;
		2039	$self->set_darkness_map;
		2040	cf::cede_to_tick;
1369	$self->activate;	2041	$self->activate;
1370	}	2042	}
1371		2043
		2044	$self->{last_save} = $cf::RUNTIME;
		2045	$self->last_access ($cf::RUNTIME);
		2046
1372	$self->in_memory (cf::MAP_IN_MEMORY);	2047	$self->in_memory (cf::MAP_ACTIVE);
		2048	}
		2049
		2050	$self->post_load;
1373	}	2051	}
1374		2052
1375	sub customise_for {	2053	sub customise_for {
1376	my ($self, $ob) = @_;	2054	my ($self, $ob) = @_;
1377		2055
1378	return find "~" . $ob->name . "/" . $self->{path}	2056	return find "~" . $ob->name . "/" . $self->{path}
1379	if $self->per_player;	2057	if $self->per_player;
1380		2058
		2059	# return find "?party/" . $ob->name . "/" . $self->{path}
		2060	# if $self->per_party;
		2061
1381	$self	2062	$self
1382	}	2063	}
1383		2064
1384	# find and load all maps in the 3x3 area around a map	2065	# find and load all maps in the 3x3 area around a map
1385	sub load_diag {	2066	sub load_neighbours {
1386	my ($map) = @_;	2067	my ($map) = @_;
1387		2068
1388	my @diag; # diagonal neighbours	2069	my @neigh; # diagonal neighbours
1389		2070
1390	for (0 .. 3) {	2071	for (0 .. 3) {
1391	my $neigh = $map->tile_path ($_)	2072	my $neigh = $map->tile_path ($_)
1392	or next;	2073	or next;
1393	$neigh = find $neigh, $map	2074	$neigh = find $neigh, $map
1394	or next;	2075	or next;
1395	$neigh->load;	2076	$neigh->load;
1396		2077
		2078	push @neigh,
1397	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2079	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1398	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2080	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1399	}	2081	}
1400		2082
1401	for (@diag) {	2083	for (grep defined $_->[0], @neigh) {
		2084	my ($path, $origin) = @$_;
1402	my $neigh = find @$_	2085	my $neigh = find $path, $origin
1403	or next;	2086	or next;
1404	$neigh->load;	2087	$neigh->load;
1405	}	2088	}
1406	}	2089	}
1407		2090
…		…
1412	}	2095	}
1413		2096
1414	sub do_load_sync {	2097	sub do_load_sync {
1415	my ($map) = @_;	2098	my ($map) = @_;
1416		2099
		2100	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2101	if $Coro::current == $Coro::main;
		2102
1417	cf::sync_job { $map->load };	2103	cf::sync_job { $map->load };
1418	}	2104	}
1419		2105
1420	our %MAP_PREFETCH;	2106	our %MAP_PREFETCH;
1421	our $MAP_PREFETCHER = Coro::async {	2107	our $MAP_PREFETCHER = undef;
1422	while () {
1423	for my $path (keys %MAP_PREFETCH) {
1424	my $map = find $path
1425	or next;
1426	$map->load;
1427
1428	delete $MAP_PREFETCH{$path};
1429	}
1430	Coro::schedule;
1431	}
1432	};
1433		2108
1434	sub find_async {	2109	sub find_async {
1435	my ($path, $origin) = @_;	2110	my ($path, $origin, $load) = @_;
1436		2111
1437	$path = normalise $path, $origin && $origin->{path};	2112	$path = normalise $path, $origin && $origin->{path};
1438		2113
1439	if (my $map = $cf::MAP{$path}) {	2114	if (my $map = $cf::MAP{$path}) {
1440	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2115	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2116	}
		2117
		2118	$MAP_PREFETCH{$path} |= $load;
		2119
		2120	$MAP_PREFETCHER ||= cf::async {
		2121	$Coro::current->{desc} = "map prefetcher";
		2122
		2123	while (%MAP_PREFETCH) {
		2124	while (my ($k, $v) = each %MAP_PREFETCH) {
		2125	if (my $map = find $k) {
		2126	$map->load if $v;
		2127	}
		2128
		2129	delete $MAP_PREFETCH{$k};
		2130	}
		2131	}
		2132	undef $MAP_PREFETCHER;
1441	}	2133	};
1442
1443	$MAP_PREFETCH{$path} = 0;
1444	$MAP_PREFETCHER->ready;	2134	$MAP_PREFETCHER->prio (6);
1445		2135
1446	()	2136	()
1447	}	2137	}
1448		2138
1449	sub save {	2139	sub save {
1450	my ($self) = @_;	2140	my ($self) = @_;
1451		2141
1452	my $lock = cf::lock_acquire "map_data:" . $self->path;	2142	my $lock = cf::lock_acquire "map_data:$self->{path}";
1453		2143
1454	$self->{last_save} = $cf::RUNTIME;	2144	$self->{last_save} = $cf::RUNTIME;
1455		2145
1456	return unless $self->dirty;	2146	return unless $self->dirty;
1457		2147
…		…
1463	return if $self->{deny_save};	2153	return if $self->{deny_save};
1464		2154
1465	local $self->{last_access} = $self->last_access;#d#	2155	local $self->{last_access} = $self->last_access;#d#
1466		2156
1467	cf::async {	2157	cf::async {
		2158	$Coro::current->{desc} = "map player save";
1468	$_->contr->save for $self->players;	2159	$_->contr->save for $self->players;
1469	};	2160	};
		2161
		2162	cf::get_slot 0.02;
1470		2163
1471	if ($uniq) {	2164	if ($uniq) {
1472	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2165	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1473	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2166	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1474	} else {	2167	} else {
…		…
1480	my ($self) = @_;	2173	my ($self) = @_;
1481		2174
1482	# save first because save cedes	2175	# save first because save cedes
1483	$self->save;	2176	$self->save;
1484		2177
1485	my $lock = cf::lock_acquire "map_data:" . $self->path;	2178	my $lock = cf::lock_acquire "map_data:$self->{path}";
1486		2179
1487	return if $self->players;	2180	return if $self->players;
1488	return if $self->in_memory != cf::MAP_IN_MEMORY;	2181	return if $self->in_memory != cf::MAP_ACTIVE;
1489	return if $self->{deny_save};	2182	return if $self->{deny_save};
1490		2183
		2184	$self->in_memory (cf::MAP_SWAPPED);
		2185
		2186	$self->deactivate;
		2187	$_->clear_links_to ($self) for values %cf::MAP;
1491	$self->clear;	2188	$self->clear;
1492	$self->in_memory (cf::MAP_SWAPPED);
1493	}	2189	}
1494		2190
1495	sub reset_at {	2191	sub reset_at {
1496	my ($self) = @_;	2192	my ($self) = @_;
1497		2193
1498	# TODO: safety, remove and allow resettable per-player maps	2194	# TODO: safety, remove and allow resettable per-player maps
1499	return 1e99 if $self->isa ("ext::map_per_player");
1500	return 1e99 if $self->{deny_reset};	2195	return 1e99 if $self->{deny_reset};
1501		2196
1502	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2197	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1503	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2198	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1504		2199
…		…
1509	my ($self) = @_;	2204	my ($self) = @_;
1510		2205
1511	$self->reset_at <= $cf::RUNTIME	2206	$self->reset_at <= $cf::RUNTIME
1512	}	2207	}
1513		2208
1514	sub rename {
1515	my ($self, $new_path) = @_;
1516
1517	normalise $new_path;
1518
1519	$self->unlink_save;
1520
1521	delete $cf::MAP{$self->path};
1522	$self->{path} = $new_path; $self->path ($self->{path});
1523	$cf::MAP{$self->path} = $self;
1524
1525	$self->save;
1526	}
1527
1528	sub reset {	2209	sub reset {
1529	my ($self) = @_;	2210	my ($self) = @_;
1530		2211
1531	my $lock = cf::lock_acquire "map_data:$self->{path}";	2212	my $lock = cf::lock_acquire "map_data:$self->{path}";
1532		2213
1533	return if $self->players;	2214	return if $self->players;
1534	return if $self->isa ("ext::map_per_player");#d#
1535		2215
1536	warn "resetting map ", $self->path;#d#	2216	warn "resetting map ", $self->path;
		2217
		2218	$self->in_memory (cf::MAP_SWAPPED);
		2219
		2220	# need to save uniques path
		2221	unless ($self->{deny_save}) {
		2222	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2223
		2224	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2225	if $uniq;
		2226	}
1537		2227
1538	delete $cf::MAP{$self->path};	2228	delete $cf::MAP{$self->path};
1539		2229
1540	$self->in_memory (cf::MAP_SWAPPED);	2230	$self->deactivate;
		2231	$_->clear_links_to ($self) for values %cf::MAP;
1541	$self->clear;	2232	$self->clear;
1542
1543	$_->clear_links_to ($self) for values %cf::MAP;
1544		2233
1545	$self->unlink_save;	2234	$self->unlink_save;
1546	$self->destroy;	2235	$self->destroy;
1547	}	2236	}
1548		2237
1549	my $nuke_counter = "aaaa";	2238	my $nuke_counter = "aaaa";
1550		2239
1551	sub nuke {	2240	sub nuke {
1552	my ($self) = @_;	2241	my ($self) = @_;
1553		2242
		2243	{
		2244	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2245
		2246	delete $cf::MAP{$self->path};
		2247
		2248	$self->unlink_save;
		2249
		2250	bless $self, "cf::map";
		2251	delete $self->{deny_reset};
1554	$self->{deny_save} = 1;	2252	$self->{deny_save} = 1;
1555	$self->reset_timeout (1);	2253	$self->reset_timeout (1);
1556	$self->rename ("{nuke}/" . ($nuke_counter++));	2254	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2255
		2256	$cf::MAP{$self->path} = $self;
		2257	}
		2258
1557	$self->reset; # polite request, might not happen	2259	$self->reset; # polite request, might not happen
		2260	}
		2261
		2262	=item $maps = cf::map::tmp_maps
		2263
		2264	Returns an arrayref with all map paths of currently instantiated and saved
		2265	maps. May block.
		2266
		2267	=cut
		2268
		2269	sub tmp_maps() {
		2270	[
		2271	map {
		2272	utf8::decode $_;
		2273	/\.map$/
		2274	? normalise $_
		2275	: ()
		2276	} @{ aio_readdir $TMPDIR or [] }
		2277	]
		2278	}
		2279
		2280	=item $maps = cf::map::random_maps
		2281
		2282	Returns an arrayref with all map paths of currently instantiated and saved
		2283	random maps. May block.
		2284
		2285	=cut
		2286
		2287	sub random_maps() {
		2288	[
		2289	map {
		2290	utf8::decode $_;
		2291	/\.map$/
		2292	? normalise "?random/$_"
		2293	: ()
		2294	} @{ aio_readdir $RANDOMDIR or [] }
		2295	]
1558	}	2296	}
1559		2297
1560	=item cf::map::unique_maps	2298	=item cf::map::unique_maps
1561		2299
1562	Returns an arrayref of paths of all shared maps that have	2300	Returns an arrayref of paths of all shared maps that have
1563	instantiated unique items. May block.	2301	instantiated unique items. May block.
1564		2302
1565	=cut	2303	=cut
1566		2304
1567	sub unique_maps() {	2305	sub unique_maps() {
1568	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2306	[
1569	or return;	2307	map {
1570
1571	my @paths;
1572
1573	for (@$files) {
1574	utf8::decode $_;	2308	utf8::decode $_;
1575	next if /\.pst$/;	2309	s/\.map$//; # TODO future compatibility hack
1576	next unless /^$PATH_SEP/o;	2310	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1577		2311	? ()
1578	s/\.map$//;	2312	: normalise $_
1579	push @paths, $_;	2313	} @{ aio_readdir $UNIQUEDIR or [] }
1580	}	2314	]
1581
1582	\@paths
1583	}	2315	}
1584
1585	package cf;
1586		2316
1587	=back	2317	=back
1588		2318
1589	=head3 cf::object	2319	=head3 cf::object
1590		2320
…		…
1594		2324
1595	=over 4	2325	=over 4
1596		2326
1597	=item $ob->inv_recursive	2327	=item $ob->inv_recursive
1598		2328
1599	Returns the inventory of the object _and_ their inventories, recursively.	2329	Returns the inventory of the object I<and> their inventories, recursively,
		2330	but I<not> the object itself.
1600		2331
1601	=cut	2332	=cut
1602		2333
1603	sub inv_recursive_;	2334	sub inv_recursive_;
1604	sub inv_recursive_ {	2335	sub inv_recursive_ {
…		…
1607		2338
1608	sub inv_recursive {	2339	sub inv_recursive {
1609	inv_recursive_ inv $_[0]	2340	inv_recursive_ inv $_[0]
1610	}	2341	}
1611		2342
		2343	=item $ref = $ob->ref
		2344
		2345	Creates and returns a persistent reference to an object that can be stored as a string.
		2346
		2347	=item $ob = cf::object::deref ($refstring)
		2348
		2349	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2350	even if the object actually exists. May block.
		2351
		2352	=cut
		2353
		2354	sub deref {
		2355	my ($ref) = @_;
		2356
		2357	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2358	my ($uuid, $name) = ($1, $2);
		2359	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2360	or return;
		2361	$pl->ob->uuid eq $uuid
		2362	or return;
		2363
		2364	$pl->ob
		2365	} else {
		2366	warn "$ref: cannot resolve object reference\n";
		2367	undef
		2368	}
		2369	}
		2370
1612	package cf;	2371	package cf;
1613		2372
1614	=back	2373	=back
1615		2374
1616	=head3 cf::object::player	2375	=head3 cf::object::player
…		…
1622	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2381	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1623	can be C<undef>. Does the right thing when the player is currently in a	2382	can be C<undef>. Does the right thing when the player is currently in a
1624	dialogue with the given NPC character.	2383	dialogue with the given NPC character.
1625		2384
1626	=cut	2385	=cut
		2386
		2387	our $SAY_CHANNEL = {
		2388	id => "say",
		2389	title => "Map",
		2390	reply => "say ",
		2391	tooltip => "Things said to and replied from npcs near you and other players on the same map only.",
		2392	};
		2393
		2394	our $CHAT_CHANNEL = {
		2395	id => "chat",
		2396	title => "Chat",
		2397	reply => "chat ",
		2398	tooltip => "Player chat and shouts, global to the server.",
		2399	};
1627		2400
1628	# rough implementation of a future "reply" method that works	2401	# rough implementation of a future "reply" method that works
1629	# with dialog boxes.	2402	# with dialog boxes.
1630	#TODO: the first argument must go, split into a $npc->reply_to ( method	2403	#TODO: the first argument must go, split into a $npc->reply_to ( method
1631	sub cf::object::player::reply($$$;$) {	2404	sub cf::object::player::reply($$$;$) {
…		…
1633		2406
1634	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2407	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1635		2408
1636	if ($self->{record_replies}) {	2409	if ($self->{record_replies}) {
1637	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2410	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2411
1638	} else {	2412	} else {
		2413	my $pl = $self->contr;
		2414
		2415	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2416	my $dialog = $pl->{npc_dialog};
		2417	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2418
		2419	} else {
1639	$msg = $npc->name . " says: $msg" if $npc;	2420	$msg = $npc->name . " says: $msg" if $npc;
1640	$self->message ($msg, $flags);	2421	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2422	}
1641	}	2423	}
		2424	}
		2425
		2426	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2427
		2428	=cut
		2429
		2430	sub cf::object::send_msg {
		2431	my $pl = shift->contr
		2432	or return;
		2433	$pl->send_msg (@_);
1642	}	2434	}
1643		2435
1644	=item $player_object->may ("access")	2436	=item $player_object->may ("access")
1645		2437
1646	Returns wether the given player is authorized to access resource "access"	2438	Returns wether the given player is authorized to access resource "access"
…		…
1659		2451
1660	=item $player_object->enter_link	2452	=item $player_object->enter_link
1661		2453
1662	Freezes the player and moves him/her to a special map (C<{link}>).	2454	Freezes the player and moves him/her to a special map (C<{link}>).
1663		2455
1664	The player should be reasonably safe there for short amounts of time. You	2456	The player should be reasonably safe there for short amounts of time (e.g.
1665	I<MUST> call C<leave_link> as soon as possible, though.	2457	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2458	though, as the palyer cannot control the character while it is on the link
		2459	map.
1666		2460
1667	Will never block.	2461	Will never block.
1668		2462
1669	=item $player_object->leave_link ($map, $x, $y)	2463	=item $player_object->leave_link ($map, $x, $y)
1670		2464
…		…
1678	=cut	2472	=cut
1679		2473
1680	sub link_map {	2474	sub link_map {
1681	unless ($LINK_MAP) {	2475	unless ($LINK_MAP) {
1682	$LINK_MAP = cf::map::find "{link}"	2476	$LINK_MAP = cf::map::find "{link}"
1683	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2477	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1684	$LINK_MAP->load;	2478	$LINK_MAP->load;
1685	}	2479	}
1686		2480
1687	$LINK_MAP	2481	$LINK_MAP
1688	}	2482	}
…		…
1693	$self->deactivate_recursive;	2487	$self->deactivate_recursive;
1694		2488
1695	return if UNIVERSAL::isa $self->map, "ext::map_link";	2489	return if UNIVERSAL::isa $self->map, "ext::map_link";
1696		2490
1697	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2491	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1698	if $self->map;	2492	if $self->map && $self->map->{path} ne "{link}";
1699		2493
1700	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2494	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1701	}	2495	}
1702		2496
1703	sub cf::object::player::leave_link {	2497	sub cf::object::player::leave_link {
1704	my ($self, $map, $x, $y) = @_;	2498	my ($self, $map, $x, $y) = @_;
		2499
		2500	return unless $self->contr->active;
1705		2501
1706	my $link_pos = delete $self->{_link_pos};	2502	my $link_pos = delete $self->{_link_pos};
1707		2503
1708	unless ($map) {	2504	unless ($map) {
1709	# restore original map position	2505	# restore original map position
…		…
1723	# use -1 or undef as default coordinates, not 0, 0	2519	# use -1 or undef as default coordinates, not 0, 0
1724	($x, $y) = ($map->enter_x, $map->enter_y)	2520	($x, $y) = ($map->enter_x, $map->enter_y)
1725	if $x <=0 && $y <= 0;	2521	if $x <=0 && $y <= 0;
1726		2522
1727	$map->load;	2523	$map->load;
1728	$map->load_diag;	2524	$map->load_neighbours;
1729		2525
1730	return unless $self->contr->active;	2526	return unless $self->contr->active;
		2527	$self->flag (cf::FLAG_DEBUG, 0);#d# temp
1731	$self->activate_recursive;	2528	$self->activate_recursive;
		2529
		2530	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1732	$self->enter_map ($map, $x, $y);	2531	$self->enter_map ($map, $x, $y);
1733	}	2532	}
1734		2533
1735	cf::player->attach (	2534	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1736	on_logout => sub {
1737	my ($pl) = @_;
1738		2535
1739	# abort map switching before logout	2536	Moves the player to the given map-path and coordinates by first freezing
1740	if ($pl->ob->{_link_pos}) {	2537	her, loading and preparing them map, calling the provided $check callback
1741	cf::sync_job {	2538	that has to return the map if sucecssful, and then unfreezes the player on
1742	$pl->ob->leave_link	2539	the new (success) or old (failed) map position. In either case, $done will
1743	};	2540	be called at the end of this process.
1744	}
1745	},
1746	on_login => sub {
1747	my ($pl) = @_;
1748		2541
1749	# try to abort aborted map switching on player login :)	2542	Note that $check will be called with a potentially non-loaded map, so if
1750	# should happen only on crashes	2543	it needs a loaded map it has to call C<< ->load >>.
1751	if ($pl->ob->{_link_pos}) {
1752	$pl->ob->enter_link;
1753	(async {
1754	# we need this sleep as the login has a concurrent enter_exit running
1755	# and this sleep increases chances of the player not ending up in scorn
1756	$pl->ob->reply (undef,
1757	"There was an internal problem at your last logout, "
1758	. "the server will try to bring you to your intended destination in a second.",
1759	cf::NDI_RED);
1760	Coro::Timer::sleep 1;
1761	$pl->ob->leave_link;
1762	})->prio (2);
1763	}
1764	},
1765	);
1766		2544
1767	=item $player_object->goto ($path, $x, $y)
1768
1769	=cut	2545	=cut
		2546
		2547	our $GOTOGEN;
1770		2548
1771	sub cf::object::player::goto {	2549	sub cf::object::player::goto {
1772	my ($self, $path, $x, $y) = @_;	2550	my ($self, $path, $x, $y, $check, $done) = @_;
		2551
		2552	# do generation counting so two concurrent goto's will be executed in-order
		2553	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1773		2554
1774	$self->enter_link;	2555	$self->enter_link;
1775		2556
1776	(async {	2557	(async {
1777	my $map = cf::map::find $path;	2558	$Coro::current->{desc} = "player::goto $path $x $y";
		2559
		2560	# *tag paths override both path and x|y
		2561	if ($path =~ /^\*(.*)$/) {
		2562	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2563	my $ob = $obs[rand @obs];
		2564
		2565	# see if we actually can go there
		2566	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2567	$ob = $obs[rand @obs];
		2568	} else {
		2569	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2570	}
		2571	# else put us there anyways for now #d#
		2572
		2573	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2574	} else {
		2575	($path, $x, $y) = (undef, undef, undef);
		2576	}
		2577	}
		2578
		2579	my $map = eval {
		2580	my $map = defined $path ? cf::map::find $path : undef;
		2581
		2582	if ($map) {
1778	$map = $map->customise_for ($self) if $map;	2583	$map = $map->customise_for ($self);
1779		2584	$map = $check->($map) if $check && $map;
1780	# warn "entering ", $map->path, " at ($x, $y)\n"	2585	} else {
1781	# if $map;
1782
1783	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2586	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2587	}
1784		2588
		2589	$map
		2590	};
		2591
		2592	if ($@) {
		2593	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2594	LOG llevError | logBacktrace, Carp::longmess $@;
		2595	}
		2596
		2597	if ($gen == $self->{_goto_generation}) {
		2598	delete $self->{_goto_generation};
1785	$self->leave_link ($map, $x, $y);	2599	$self->leave_link ($map, $x, $y);
		2600	}
		2601
		2602	$done->() if $done;
1786	})->prio (1);	2603	})->prio (1);
1787	}	2604	}
1788		2605
1789	=item $player_object->enter_exit ($exit_object)	2606	=item $player_object->enter_exit ($exit_object)
1790		2607
…		…
1792		2609
1793	sub parse_random_map_params {	2610	sub parse_random_map_params {
1794	my ($spec) = @_;	2611	my ($spec) = @_;
1795		2612
1796	my $rmp = { # defaults	2613	my $rmp = { # defaults
1797	xsize => 10,	2614	xsize => (cf::rndm 15, 40),
1798	ysize => 10,	2615	ysize => (cf::rndm 15, 40),
		2616	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2617	#layout => string,
1799	};	2618	};
1800		2619
1801	for (split /\n/, $spec) {	2620	for (split /\n/, $spec) {
1802	my ($k, $v) = split /\s+/, $_, 2;	2621	my ($k, $v) = split /\s+/, $_, 2;
1803		2622
…		…
1815	# that depends on the exit object	2634	# that depends on the exit object
1816		2635
1817	my $rmp = parse_random_map_params $exit->msg;	2636	my $rmp = parse_random_map_params $exit->msg;
1818		2637
1819	if ($exit->map) {	2638	if ($exit->map) {
1820	$rmp->{region} = $exit->map->region_name;	2639	$rmp->{region} = $exit->region->name;
1821	$rmp->{origin_map} = $exit->map->path;	2640	$rmp->{origin_map} = $exit->map->path;
1822	$rmp->{origin_x} = $exit->x;	2641	$rmp->{origin_x} = $exit->x;
1823	$rmp->{origin_y} = $exit->y;	2642	$rmp->{origin_y} = $exit->y;
		2643
		2644	$exit->map->touch;
1824	}	2645	}
1825		2646
1826	$rmp->{random_seed} ||= $exit->random_seed;	2647	$rmp->{random_seed} ||= $exit->random_seed;
1827		2648
1828	my $data = cf::to_json $rmp;	2649	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1829	my $md5 = Digest::MD5::md5_hex $data;	2650	my $md5 = Digest::MD5::md5_hex $data;
		2651	my $meta = "$RANDOMDIR/$md5.meta";
1830		2652
1831	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2653	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1832	aio_write $fh, 0, (length $data), $data, 0;	2654	aio_write $fh, 0, (length $data), $data, 0;
		2655	undef $fh;
		2656	aio_rename "$meta~", $meta;
1833		2657
		2658	my $slaying = "?random/$md5";
		2659
		2660	if ($exit->valid) {
1834	$exit->slaying ("?random/$md5");	2661	$exit->slaying ("?random/$md5");
1835	$exit->msg (undef);	2662	$exit->msg (undef);
		2663	}
1836	}	2664	}
1837	}	2665	}
1838		2666
1839	sub cf::object::player::enter_exit {	2667	sub cf::object::player::enter_exit {
1840	my ($self, $exit) = @_;	2668	my ($self, $exit) = @_;
…		…
1842	return unless $self->type == cf::PLAYER;	2670	return unless $self->type == cf::PLAYER;
1843		2671
1844	$self->enter_link;	2672	$self->enter_link;
1845		2673
1846	(async {	2674	(async {
1847	$self->deactivate_recursive; # just to be sure	2675	$Coro::current->{desc} = "enter_exit";
		2676
1848	unless (eval {	2677	unless (eval {
		2678	$self->deactivate_recursive; # just to be sure
		2679
		2680	# random map handling
		2681	{
		2682	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2683
1849	prepare_random_map $exit	2684	prepare_random_map $exit
1850	if $exit->slaying eq "/!";	2685	if $exit->slaying eq "/!";
		2686	}
1851		2687
1852	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;	2688	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1853	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2689	my $x = $exit->stats->hp;
		2690	my $y = $exit->stats->sp;
1854		2691
		2692	$self->goto ($map, $x, $y);
		2693
		2694	# if exit is damned, update players death & WoR home-position
		2695	$self->contr->savebed ($map, $x, $y)
		2696	if $exit->flag (cf::FLAG_DAMNED);
		2697
1855	1;	2698	1
1856	}) {	2699	}) {
1857	$self->message ("Something went wrong deep within the crossfire server. "	2700	$self->message ("Something went wrong deep within the deliantra server. "
1858	. "I'll try to bring you back to the map you were before. "	2701	. "I'll try to bring you back to the map you were before. "
1859	. "Please report this to the dungeon master!",	2702	. "Please report this to the dungeon master!",
1860	cf::NDI_UNIQUE | cf::NDI_RED);	2703	cf::NDI_UNIQUE | cf::NDI_RED);
1861		2704
1862	warn "ERROR in enter_exit: $@";	2705	warn "ERROR in enter_exit: $@";
1863	$self->leave_link;	2706	$self->leave_link;
1864	}	2707	}
1865	})->prio (1);	2708	})->prio (1);
…		…
1878		2721
1879	sub cf::client::send_drawinfo {	2722	sub cf::client::send_drawinfo {
1880	my ($self, $text, $flags) = @_;	2723	my ($self, $text, $flags) = @_;
1881		2724
1882	utf8::encode $text;	2725	utf8::encode $text;
1883	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2726	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1884	}	2727	}
1885		2728
		2729	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2730
		2731	Send a drawinfo or msg packet to the client, formatting the msg for the
		2732	client if neccessary. C<$type> should be a string identifying the type of
		2733	the message, with C<log> being the default. If C<$color> is negative, suppress
		2734	the message unless the client supports the msg packet.
		2735
		2736	=cut
		2737
		2738	# non-persistent channels (usually the info channel)
		2739	our %CHANNEL = (
		2740	"c/identify" => {
		2741	id => "infobox",
		2742	title => "Identify",
		2743	reply => undef,
		2744	tooltip => "Items recently identified",
		2745	},
		2746	"c/examine" => {
		2747	id => "infobox",
		2748	title => "Examine",
		2749	reply => undef,
		2750	tooltip => "Signs and other items you examined",
		2751	},
		2752	"c/book" => {
		2753	id => "infobox",
		2754	title => "Book",
		2755	reply => undef,
		2756	tooltip => "The contents of a note or book",
		2757	},
		2758	"c/lookat" => {
		2759	id => "infobox",
		2760	title => "Look",
		2761	reply => undef,
		2762	tooltip => "What you saw there",
		2763	},
		2764	"c/who" => {
		2765	id => "infobox",
		2766	title => "Players",
		2767	reply => undef,
		2768	tooltip => "Shows players who are currently online",
		2769	},
		2770	"c/body" => {
		2771	id => "infobox",
		2772	title => "Body Parts",
		2773	reply => undef,
		2774	tooltip => "Shows which body parts you posess and are available",
		2775	},
		2776	"c/skills" => {
		2777	id => "infobox",
		2778	title => "Skills",
		2779	reply => undef,
		2780	tooltip => "Shows your experience per skill and item power",
		2781	},
		2782	"c/uptime" => {
		2783	id => "infobox",
		2784	title => "Uptime",
		2785	reply => undef,
		2786	tooltip => "How long the server has been running since last restart",
		2787	},
		2788	"c/mapinfo" => {
		2789	id => "infobox",
		2790	title => "Map Info",
		2791	reply => undef,
		2792	tooltip => "Information related to the maps",
		2793	},
		2794	"c/party" => {
		2795	id => "party",
		2796	title => "Party",
		2797	reply => "gsay ",
		2798	tooltip => "Messages and chat related to your party",
		2799	},
		2800	);
		2801
		2802	sub cf::client::send_msg {
		2803	my ($self, $channel, $msg, $color, @extra) = @_;
		2804
		2805	$msg = $self->pl->expand_cfpod ($msg)
		2806	unless $color & cf::NDI_VERBATIM;
		2807
		2808	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2809
		2810	# check predefined channels, for the benefit of C
		2811	if ($CHANNEL{$channel}) {
		2812	$channel = $CHANNEL{$channel};
		2813
		2814	$self->ext_msg (channel_info => $channel)
		2815	if $self->can_msg;
		2816
		2817	$channel = $channel->{id};
		2818
		2819	} elsif (ref $channel) {
		2820	# send meta info to client, if not yet sent
		2821	unless (exists $self->{channel}{$channel->{id}}) {
		2822	$self->{channel}{$channel->{id}} = $channel;
		2823	$self->ext_msg (channel_info => $channel)
		2824	if $self->can_msg;
		2825	}
		2826
		2827	$channel = $channel->{id};
		2828	}
		2829
		2830	return unless @extra || length $msg;
		2831
		2832	if ($self->can_msg) {
		2833	# default colour, mask it out
		2834	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2835	if $color & cf::NDI_DEF;
		2836
		2837	my $pkt = "msg "
		2838	. $self->{json_coder}->encode (
		2839	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2840	);
		2841
		2842	# try lzf for large packets
		2843	$pkt = "lzf " . Compress::LZF::compress $pkt
		2844	if 1024 <= length $pkt and $self->{can_lzf};
		2845
		2846	# split very large packets
		2847	if (8192 < length $pkt and $self->{can_lzf}) {
		2848	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2849	$pkt = "frag";
		2850	}
		2851
		2852	$self->send_packet ($pkt);
		2853	} else {
		2854	if ($color >= 0) {
		2855	# replace some tags by gcfclient-compatible ones
		2856	for ($msg) {
		2857	1 while
		2858	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2859	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2860	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2861	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2862	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2863	}
		2864
		2865	$color &= cf::NDI_COLOR_MASK;
		2866
		2867	utf8::encode $msg;
		2868
		2869	if (0 && $msg =~ /\[/) {
		2870	# COMMAND/INFO
		2871	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2872	} else {
		2873	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2874	$self->send_packet ("drawinfo $color $msg")
		2875	}
		2876	}
		2877	}
		2878	}
		2879
		2880	=item $client->ext_msg ($type, @msg)
		2881
		2882	Sends an ext event to the client.
		2883
		2884	=cut
		2885
		2886	sub cf::client::ext_msg($$@) {
		2887	my ($self, $type, @msg) = @_;
		2888
		2889	if ($self->extcmd == 2) {
		2890	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2891	} elsif ($self->extcmd == 1) { # TODO: remove
		2892	push @msg, msgtype => "event_$type";
		2893	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2894	}
		2895	}
		2896
		2897	=item $client->ext_reply ($msgid, @msg)
		2898
		2899	Sends an ext reply to the client.
		2900
		2901	=cut
		2902
		2903	sub cf::client::ext_reply($$@) {
		2904	my ($self, $id, @msg) = @_;
		2905
		2906	if ($self->extcmd == 2) {
		2907	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2908	} elsif ($self->extcmd == 1) {
		2909	#TODO: version 1, remove
		2910	unshift @msg, msgtype => "reply", msgid => $id;
		2911	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2912	}
		2913	}
1886		2914
1887	=item $success = $client->query ($flags, "text", \&cb)	2915	=item $success = $client->query ($flags, "text", \&cb)
1888		2916
1889	Queues a query to the client, calling the given callback with	2917	Queues a query to the client, calling the given callback with
1890	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2918	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1891	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2919	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1892		2920
1893	Queries can fail, so check the return code. Or don't, as queries will become	2921	Queries can fail, so check the return code. Or don't, as queries will
1894	reliable at some point in the future.	2922	become reliable at some point in the future.
1895		2923
1896	=cut	2924	=cut
1897		2925
1898	sub cf::client::query {	2926	sub cf::client::query {
1899	my ($self, $flags, $text, $cb) = @_;	2927	my ($self, $flags, $text, $cb) = @_;
…		…
1907	utf8::encode $text;	2935	utf8::encode $text;
1908	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2936	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1909		2937
1910	$self->send_packet ($self->{query_queue}[0][0])	2938	$self->send_packet ($self->{query_queue}[0][0])
1911	if @{ $self->{query_queue} } == 1;	2939	if @{ $self->{query_queue} } == 1;
		2940
		2941	1
1912	}	2942	}
1913		2943
1914	cf::client->attach (	2944	cf::client->attach (
		2945	on_connect => sub {
		2946	my ($ns) = @_;
		2947
		2948	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2949	},
1915	on_reply => sub {	2950	on_reply => sub {
1916	my ($ns, $msg) = @_;	2951	my ($ns, $msg) = @_;
1917		2952
1918	# this weird shuffling is so that direct followup queries	2953	# this weird shuffling is so that direct followup queries
1919	# get handled first	2954	# get handled first
1920	my $queue = delete $ns->{query_queue}	2955	my $queue = delete $ns->{query_queue}
1921	or return; # be conservative, not sure how that can happen, but we saw a crash here	2956	or return; # be conservative, not sure how that can happen, but we saw a crash here
1922		2957
1923	(shift @$queue)->[1]->($msg);	2958	(shift @$queue)->[1]->($msg);
		2959	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1924		2960
1925	push @{ $ns->{query_queue} }, @$queue;	2961	push @{ $ns->{query_queue} }, @$queue;
1926		2962
1927	if (@{ $ns->{query_queue} } == @$queue) {	2963	if (@{ $ns->{query_queue} } == @$queue) {
1928	if (@$queue) {	2964	if (@$queue) {
…		…
1930	} else {	2966	} else {
1931	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2967	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1932	}	2968	}
1933	}	2969	}
1934	},	2970	},
		2971	on_exticmd => sub {
		2972	my ($ns, $buf) = @_;
		2973
		2974	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2975
		2976	if (ref $msg) {
		2977	my ($type, $reply, @payload) =
		2978	"ARRAY" eq ref $msg
		2979	? @$msg
		2980	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2981
		2982	my @reply;
		2983
		2984	if (my $cb = $EXTICMD{$type}) {
		2985	@reply = $cb->($ns, @payload);
		2986	}
		2987
		2988	$ns->ext_reply ($reply, @reply)
		2989	if $reply;
		2990
		2991	} else {
		2992	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2993	}
		2994
		2995	cf::override;
		2996	},
1935	);	2997	);
1936		2998
1937	=item $client->async (\&cb)	2999	=item $client->async (\&cb)
1938		3000
1939	Create a new coroutine, running the specified callback. The coroutine will	3001	Create a new coroutine, running the specified callback. The coroutine will
…		…
1980	our $safe = new Safe "safe";	3042	our $safe = new Safe "safe";
1981	our $safe_hole = new Safe::Hole;	3043	our $safe_hole = new Safe::Hole;
1982		3044
1983	$SIG{FPE} = 'IGNORE';	3045	$SIG{FPE} = 'IGNORE';
1984		3046
1985	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3047	$safe->permit_only (Opcode::opset qw(
		3048	:base_core :base_mem :base_orig :base_math
		3049	grepstart grepwhile mapstart mapwhile
		3050	sort time
		3051	));
1986		3052
1987	# here we export the classes and methods available to script code	3053	# here we export the classes and methods available to script code
1988		3054
1989	=pod	3055	=pod
1990		3056
1991	The following fucntions and emthods are available within a safe environment:	3057	The following functions and methods are available within a safe environment:
1992		3058
1993	cf::object contr pay_amount pay_player map	3059	cf::object
		3060	contr pay_amount pay_player map x y force_find force_add destroy
		3061	insert remove name archname title slaying race decrease split
		3062
1994	cf::object::player player	3063	cf::object::player
1995	cf::player peaceful	3064	player
1996	cf::map trigger	3065
		3066	cf::player
		3067	peaceful
		3068
		3069	cf::map
		3070	trigger
1997		3071
1998	=cut	3072	=cut
1999		3073
2000	for (	3074	for (
2001	["cf::object" => qw(contr pay_amount pay_player map)],	3075	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3076	insert remove inv nrof name archname title slaying race
		3077	decrease split destroy change_exp)],
2002	["cf::object::player" => qw(player)],	3078	["cf::object::player" => qw(player)],
2003	["cf::player" => qw(peaceful)],	3079	["cf::player" => qw(peaceful)],
2004	["cf::map" => qw(trigger)],	3080	["cf::map" => qw(trigger)],
2005	) {	3081	) {
2006	no strict 'refs';	3082	no strict 'refs';
…		…
2077	=back	3153	=back
2078		3154
2079	=cut	3155	=cut
2080		3156
2081	#############################################################################	3157	#############################################################################
		3158	# the server's init and main functions
2082		3159
2083	=head2 EXTENSION DATABASE SUPPORT	3160	sub load_facedata($) {
		3161	my ($path) = @_;
2084		3162
2085	Crossfire maintains a very simple database for extension use. It can	3163	# HACK to clear player env face cache, we need some signal framework
2086	currently store anything that can be serialised using Storable, which	3164	# for this (global event?)
2087	excludes objects.	3165	%ext::player_env::MUSIC_FACE_CACHE = ();
2088		3166
2089	The parameter C<$family> should best start with the name of the extension	3167	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2090	using it, it should be unique.
2091		3168
2092	=over 4	3169	warn "loading facedata from $path\n";
2093		3170
2094	=item $hashref = cf::db_get $family	3171	my $facedata;
		3172	0 < aio_load $path, $facedata
		3173	or die "$path: $!";
2095		3174
2096	Return a hashref for use by the extension C<$family>, which can be	3175	$facedata = Coro::Storable::thaw $facedata;
2097	modified. After modifications, you have to call C<cf::db_dirty> or
2098	C<cf::db_sync>.
2099		3176
2100	=item $value = cf::db_get $family => $key	3177	$facedata->{version} == 2
		3178	or cf::cleanup "$path: version mismatch, cannot proceed.";
2101		3179
2102	Returns a single value from the database	3180	# patch in the exptable
2103		3181	$facedata->{resource}{"res/exp_table"} = {
2104	=item cf::db_put $family => $hashref	3182	type => FT_RSRC,
2105		3183	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2106	Stores the given family hashref into the database. Updates are delayed, if
2107	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2108
2109	=item cf::db_put $family => $key => $value
2110
2111	Stores the given C<$value> in the family hash. Updates are delayed, if you
2112	want the data to be synced to disk immediately, use C<cf::db_sync>.
2113
2114	=item cf::db_dirty
2115
2116	Marks the database as dirty, to be updated at a later time.
2117
2118	=item cf::db_sync
2119
2120	Immediately write the database to disk I<if it is dirty>.
2121
2122	=cut
2123
2124	our $DB;
2125
2126	{
2127	my $path = cf::localdir . "/database.pst";
2128
2129	sub db_load() {
2130	$DB = stat $path ? Storable::retrieve $path : { };
2131	}
2132
2133	my $pid;
2134
2135	sub db_save() {
2136	waitpid $pid, 0 if $pid;
2137	if (0 == ($pid = fork)) {
2138	$DB->{_meta}{version} = 1;
2139	Storable::nstore $DB, "$path~";
2140	rename "$path~", $path;
2141	cf::_exit 0 if defined $pid;
2142	}
2143	}
2144
2145	my $dirty;
2146
2147	sub db_sync() {
2148	db_save if $dirty;
2149	undef $dirty;
2150	}
2151
2152	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2153	db_sync;
2154	});	3184	};
		3185	cf::cede_to_tick;
2155		3186
2156	sub db_dirty() {
2157	$dirty = 1;
2158	$idle->start;
2159	}	3187	{
		3188	my $faces = $facedata->{faceinfo};
2160		3189
2161	sub db_get($;$) {	3190	while (my ($face, $info) = each %$faces) {
2162	@_ >= 2	3191	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2163	? $DB->{$_[0]}{$_[1]}
2164	: ($DB->{$_[0]} ||= { })
2165	}
2166		3192
2167	sub db_put($$;$) {	3193	cf::face::set_visibility $idx, $info->{visibility};
2168	if (@_ >= 3) {	3194	cf::face::set_magicmap $idx, $info->{magicmap};
2169	$DB->{$_[0]}{$_[1]} = $_[2];	3195	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2170	} else {	3196	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2171	$DB->{$_[0]} = $_[1];
2172	}
2173	db_dirty;
2174	}
2175		3197
2176	cf::global->attach (	3198	cf::cede_to_tick;
2177	prio => 10000,
2178	on_cleanup => sub {
2179	db_sync;
2180	},	3199	}
2181	);
2182	}
2183		3200
2184	#############################################################################	3201	while (my ($face, $info) = each %$faces) {
2185	# the server's main()	3202	next unless $info->{smooth};
2186		3203
2187	sub cfg_load {	3204	my $idx = cf::face::find $face
		3205	or next;
		3206
		3207	if (my $smooth = cf::face::find $info->{smooth}) {
		3208	cf::face::set_smooth $idx, $smooth;
		3209	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3210	} else {
		3211	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3212	}
		3213
		3214	cf::cede_to_tick;
		3215	}
		3216	}
		3217
		3218	{
		3219	my $anims = $facedata->{animinfo};
		3220
		3221	while (my ($anim, $info) = each %$anims) {
		3222	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3223	cf::cede_to_tick;
		3224	}
		3225
		3226	cf::anim::invalidate_all; # d'oh
		3227	}
		3228
		3229	{
		3230	# TODO: for gcfclient pleasure, we should give resources
		3231	# that gcfclient doesn't grok a >10000 face index.
		3232	my $res = $facedata->{resource};
		3233
		3234	while (my ($name, $info) = each %$res) {
		3235	if (defined $info->{type}) {
		3236	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3237	my $data;
		3238
		3239	if ($info->{type} & 1) {
		3240	# prepend meta info
		3241
		3242	my $meta = $enc->encode ({
		3243	name => $name,
		3244	%{ $info->{meta} || {} },
		3245	});
		3246
		3247	$data = pack "(w/a*)*", $meta, $info->{data};
		3248	} else {
		3249	$data = $info->{data};
		3250	}
		3251
		3252	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3253	cf::face::set_type $idx, $info->{type};
		3254	} else {
		3255	$RESOURCE{$name} = $info;
		3256	}
		3257
		3258	cf::cede_to_tick;
		3259	}
		3260	}
		3261
		3262	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3263
		3264	1
		3265	}
		3266
		3267	cf::global->attach (on_resource_update => sub {
		3268	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3269	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3270
		3271	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3272	my $sound = $soundconf->{compat}[$_]
		3273	or next;
		3274
		3275	my $face = cf::face::find "sound/$sound->[1]";
		3276	cf::sound::set $sound->[0] => $face;
		3277	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3278	}
		3279
		3280	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3281	my $face = cf::face::find "sound/$v";
		3282	cf::sound::set $k => $face;
		3283	}
		3284	}
		3285	});
		3286
		3287	register_exticmd fx_want => sub {
		3288	my ($ns, $want) = @_;
		3289
		3290	while (my ($k, $v) = each %$want) {
		3291	$ns->fx_want ($k, $v);
		3292	}
		3293	};
		3294
		3295	sub load_resource_file($) {
		3296	my $guard = lock_acquire "load_resource_file";
		3297
		3298	my $status = load_resource_file_ $_[0];
		3299	get_slot 0.1, 100;
		3300	cf::arch::commit_load;
		3301
		3302	$status
		3303	}
		3304
		3305	sub reload_regions {
		3306	# HACK to clear player env face cache, we need some signal framework
		3307	# for this (global event?)
		3308	%ext::player_env::MUSIC_FACE_CACHE = ();
		3309
		3310	load_resource_file "$MAPDIR/regions"
		3311	or die "unable to load regions file\n";
		3312
		3313	for (cf::region::list) {
		3314	$_->{match} = qr/$_->{match}/
		3315	if exists $_->{match};
		3316	}
		3317	}
		3318
		3319	sub reload_facedata {
		3320	load_facedata "$DATADIR/facedata"
		3321	or die "unable to load facedata\n";
		3322	}
		3323
		3324	sub reload_archetypes {
		3325	load_resource_file "$DATADIR/archetypes"
		3326	or die "unable to load archetypes\n";
		3327	}
		3328
		3329	sub reload_treasures {
		3330	load_resource_file "$DATADIR/treasures"
		3331	or die "unable to load treasurelists\n";
		3332	}
		3333
		3334	sub reload_resources {
		3335	warn "reloading resource files...\n";
		3336
		3337	reload_facedata;
		3338	reload_archetypes;
		3339	reload_regions;
		3340	reload_treasures;
		3341
		3342	warn "finished reloading resource files\n";
		3343	}
		3344
		3345	sub init {
		3346	my $guard = freeze_mainloop;
		3347
		3348	evthread_start IO::AIO::poll_fileno;
		3349
		3350	reload_resources;
		3351	}
		3352
		3353	sub reload_config {
2188	open my $fh, "<:utf8", cf::confdir . "/config"	3354	open my $fh, "<:utf8", "$CONFDIR/config"
2189	or return;	3355	or return;
2190		3356
2191	local $/;	3357	local $/;
2192	*CFG = YAML::Syck::Load <$fh>;	3358	*CFG = YAML::Load <$fh>;
2193		3359
2194	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3360	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2195		3361
2196	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3362	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2197	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3363	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2203	};	3369	};
2204	warn $@ if $@;	3370	warn $@ if $@;
2205	}	3371	}
2206	}	3372	}
2207		3373
		3374	sub pidfile() {
		3375	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3376	or die "$PIDFILE: $!";
		3377	flock $fh, &Fcntl::LOCK_EX
		3378	or die "$PIDFILE: flock: $!";
		3379	$fh
		3380	}
		3381
		3382	# make sure only one server instance is running at any one time
		3383	sub atomic {
		3384	my $fh = pidfile;
		3385
		3386	my $pid = <$fh>;
		3387	kill 9, $pid if $pid > 0;
		3388
		3389	seek $fh, 0, 0;
		3390	print $fh $$;
		3391	}
		3392
2208	sub main {	3393	sub main {
		3394	atomic;
		3395
2209	# we must not ever block the main coroutine	3396	# we must not ever block the main coroutine
2210	local $Coro::idle = sub {	3397	local $Coro::idle = sub {
2211	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3398	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2212	async { Event::one_event };	3399	(async {
		3400	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3401	EV::loop EV::LOOP_ONESHOT;
		3402	})->prio (Coro::PRIO_MAX);
2213	};	3403	};
2214		3404
2215	cfg_load;	3405	{
2216	db_load;	3406	my $guard = freeze_mainloop;
		3407	reload_config;
		3408	db_init;
2217	load_extensions;	3409	load_extensions;
		3410
		3411	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3412	}
		3413
		3414	utime time, time, $RUNTIMEFILE;
		3415
		3416	# no (long-running) fork's whatsoever before this point(!)
		3417	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3418
2218	Event::loop;	3419	EV::loop;
2219	}	3420	}
2220		3421
2221	#############################################################################	3422	#############################################################################
2222	# initialisation and cleanup	3423	# initialisation and cleanup
2223		3424
2224	# install some emergency cleanup handlers	3425	# install some emergency cleanup handlers
2225	BEGIN {	3426	BEGIN {
		3427	our %SIGWATCHER = ();
2226	for my $signal (qw(INT HUP TERM)) {	3428	for my $signal (qw(INT HUP TERM)) {
2227	Event->signal (	3429	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2228	data => WF_AUTOCANCEL,
2229	signal => $signal,
2230	cb => sub {
2231	cf::cleanup "SIG$signal";	3430	cf::cleanup "SIG$signal";
2232	},
2233	);	3431	};
		3432	}
		3433	}
		3434
		3435	sub write_runtime_sync {
		3436	# first touch the runtime file to show we are still running:
		3437	# the fsync below can take a very very long time.
		3438
		3439	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3440
		3441	my $guard = cf::lock_acquire "write_runtime";
		3442
		3443	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3444	or return;
		3445
		3446	my $value = $cf::RUNTIME + 90 + 10;
		3447	# 10 is the runtime save interval, for a monotonic clock
		3448	# 60 allows for the watchdog to kill the server.
		3449
		3450	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3451	and return;
		3452
		3453	# always fsync - this file is important
		3454	aio_fsync $fh
		3455	and return;
		3456
		3457	# touch it again to show we are up-to-date
		3458	aio_utime $fh, undef, undef;
		3459
		3460	close $fh
		3461	or return;
		3462
		3463	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3464	and return;
		3465
		3466	warn "runtime file written.\n";
		3467
2234	}	3468	1
		3469	}
		3470
		3471	our $uuid_lock;
		3472	our $uuid_skip;
		3473
		3474	sub write_uuid_sync($) {
		3475	$uuid_skip ||= $_[0];
		3476
		3477	return if $uuid_lock;
		3478	local $uuid_lock = 1;
		3479
		3480	my $uuid = "$LOCALDIR/uuid";
		3481
		3482	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3483	or return;
		3484
		3485	my $value = uuid_str $uuid_skip + uuid_seq uuid_cur;
		3486	$uuid_skip = 0;
		3487
		3488	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3489	and return;
		3490
		3491	# always fsync - this file is important
		3492	aio_fsync $fh
		3493	and return;
		3494
		3495	close $fh
		3496	or return;
		3497
		3498	aio_rename "$uuid~", $uuid
		3499	and return;
		3500
		3501	warn "uuid file written ($value).\n";
		3502
		3503	1
		3504
		3505	}
		3506
		3507	sub write_uuid($$) {
		3508	my ($skip, $sync) = @_;
		3509
		3510	$sync ? write_uuid_sync $skip
		3511	: async { write_uuid_sync $skip };
2235	}	3512	}
2236		3513
2237	sub emergency_save() {	3514	sub emergency_save() {
2238	my $freeze_guard = cf::freeze_mainloop;	3515	my $freeze_guard = cf::freeze_mainloop;
2239		3516
…		…
2245	# and maps saved/destroyed asynchronously.	3522	# and maps saved/destroyed asynchronously.
2246	warn "begin emergency player save\n";	3523	warn "begin emergency player save\n";
2247	for my $login (keys %cf::PLAYER) {	3524	for my $login (keys %cf::PLAYER) {
2248	my $pl = $cf::PLAYER{$login} or next;	3525	my $pl = $cf::PLAYER{$login} or next;
2249	$pl->valid or next;	3526	$pl->valid or next;
		3527	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2250	$pl->save;	3528	$pl->save;
2251	}	3529	}
2252	warn "end emergency player save\n";	3530	warn "end emergency player save\n";
2253		3531
2254	warn "begin emergency map save\n";	3532	warn "begin emergency map save\n";
…		…
2256	my $map = $cf::MAP{$path} or next;	3534	my $map = $cf::MAP{$path} or next;
2257	$map->valid or next;	3535	$map->valid or next;
2258	$map->save;	3536	$map->save;
2259	}	3537	}
2260	warn "end emergency map save\n";	3538	warn "end emergency map save\n";
		3539
		3540	warn "begin emergency database checkpoint\n";
		3541	BDB::db_env_txn_checkpoint $DB_ENV;
		3542	warn "end emergency database checkpoint\n";
		3543
		3544	warn "begin write uuid\n";
		3545	write_uuid_sync 1;
		3546	warn "end write uuid\n";
2261	};	3547	};
2262		3548
2263	warn "leave emergency perl save\n";	3549	warn "leave emergency perl save\n";
2264	}	3550	}
2265		3551
		3552	sub post_cleanup {
		3553	my ($make_core) = @_;
		3554
		3555	warn Carp::longmess "post_cleanup backtrace"
		3556	if $make_core;
		3557
		3558	my $fh = pidfile;
		3559	unlink $PIDFILE if <$fh> == $$;
		3560	}
		3561
		3562	# a safer delete_package, copied from Symbol
		3563	sub clear_package($) {
		3564	my $pkg = shift;
		3565
		3566	# expand to full symbol table name if needed
		3567	unless ($pkg =~ /^main::.*::$/) {
		3568	$pkg = "main$pkg" if $pkg =~ /^::/;
		3569	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3570	$pkg .= '::' unless $pkg =~ /::$/;
		3571	}
		3572
		3573	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3574	my $stem_symtab = *{$stem}{HASH};
		3575
		3576	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3577	or return;
		3578
		3579	# clear all symbols
		3580	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3581	for my $name (keys %$leaf_symtab) {
		3582	_gv_clear *{"$pkg$name"};
		3583	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3584	}
		3585	warn "cleared package #$pkg\n";#d#
		3586	}
		3587
		3588	our $RELOAD; # how many times to reload
		3589
2266	sub reload() {	3590	sub do_reload_perl() {
2267	# can/must only be called in main	3591	# can/must only be called in main
2268	if ($Coro::current != $Coro::main) {	3592	if ($Coro::current != $Coro::main) {
2269	warn "can only reload from main coroutine\n";	3593	warn "can only reload from main coroutine";
2270	return;	3594	return;
2271	}	3595	}
2272		3596
		3597	return if $RELOAD++;
		3598
		3599	while ($RELOAD) {
2273	warn "reloading...";	3600	warn "reloading...";
2274		3601
2275	warn "freezing server";	3602	warn "entering sync_job";
2276	my $guard = freeze_mainloop;	3603
		3604	cf::sync_job {
		3605	cf::write_runtime_sync; # external watchdog should not bark
2277	cf::emergency_save;	3606	cf::emergency_save;
		3607	cf::write_runtime_sync; # external watchdog should not bark
2278		3608
2279	warn "sync database to disk";	3609	warn "syncing database to disk";
2280	cf::db_sync;	3610	BDB::db_env_txn_checkpoint $DB_ENV;
2281	IO::AIO::flush;
2282		3611
2283	eval {
2284	# if anything goes wrong in here, we should simply crash as we already saved	3612	# if anything goes wrong in here, we should simply crash as we already saved
2285		3613
2286	warn "cancel all watchers";	3614	warn "flushing outstanding aio requests";
2287	for (Event::all_watchers) {	3615	while (IO::AIO::nreqs || BDB::nreqs) {
2288	$_->cancel if $_->data & WF_AUTOCANCEL;	3616	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2289	}
2290
2291	warn "cancel all extension coros";
2292	$_->cancel for values %EXT_CORO;
2293	%EXT_CORO = ();
2294
2295	warn "remove commands";
2296	%COMMAND = ();
2297
2298	warn "remove ext commands";
2299	%EXTCMD = ();
2300
2301	warn "unload/nuke all extensions";
2302	for my $pkg (@EXTS) {
2303	warn "... unloading $pkg";
2304
2305	if (my $cb = $pkg->can ("unload")) {
2306	eval {
2307	$cb->($pkg);
2308	1
2309	} or warn "$pkg unloaded, but with errors: $@";
2310	}	3617	}
2311		3618
		3619	warn "cancelling all extension coros";
		3620	$_->cancel for values %EXT_CORO;
		3621	%EXT_CORO = ();
		3622
		3623	warn "removing commands";
		3624	%COMMAND = ();
		3625
		3626	warn "removing ext/exti commands";
		3627	%EXTCMD = ();
		3628	%EXTICMD = ();
		3629
		3630	warn "unloading/nuking all extensions";
		3631	for my $pkg (@EXTS) {
2312	warn "... nuking $pkg";	3632	warn "... unloading $pkg";
2313	Symbol::delete_package $pkg;
2314	}
2315		3633
2316	warn "unload all perl modules loaded from $LIBDIR";
2317	while (my ($k, $v) = each %INC) {
2318	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2319
2320	warn "removing <$k>";
2321	delete $INC{$k};
2322
2323	$k =~ s/\.pm$//;
2324	$k =~ s/\//::/g;
2325
2326	if (my $cb = $k->can ("unload_module")) {	3634	if (my $cb = $pkg->can ("unload")) {
		3635	eval {
2327	$cb->();	3636	$cb->($pkg);
		3637	1
		3638	} or warn "$pkg unloaded, but with errors: $@";
		3639	}
		3640
		3641	warn "... clearing $pkg";
		3642	clear_package $pkg;
2328	}	3643	}
2329		3644
2330	Symbol::delete_package $k;	3645	warn "unloading all perl modules loaded from $LIBDIR";
		3646	while (my ($k, $v) = each %INC) {
		3647	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3648
		3649	warn "... unloading $k";
		3650	delete $INC{$k};
		3651
		3652	$k =~ s/\.pm$//;
		3653	$k =~ s/\//::/g;
		3654
		3655	if (my $cb = $k->can ("unload_module")) {
		3656	$cb->();
		3657	}
		3658
		3659	clear_package $k;
2331	}	3660	}
2332		3661
2333	warn "get rid of safe::, as good as possible";	3662	warn "getting rid of safe::, as good as possible";
2334	Symbol::delete_package "safe::$_"	3663	clear_package "safe::$_"
2335	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3664	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2336		3665
2337	warn "unload cf.pm \"a bit\"";	3666	warn "unloading cf.pm \"a bit\"";
2338	delete $INC{"cf.pm"};	3667	delete $INC{"cf.pm"};
		3668	delete $INC{"cf/pod.pm"};
2339		3669
2340	# don't, removes xs symbols, too,	3670	# don't, removes xs symbols, too,
2341	# and global variables created in xs	3671	# and global variables created in xs
2342	#Symbol::delete_package __PACKAGE__;	3672	#clear_package __PACKAGE__;
2343		3673
		3674	warn "unload completed, starting to reload now";
		3675
2344	warn "reloading cf.pm";	3676	warn "reloading cf.pm";
2345	require cf;	3677	require cf;
2346	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3678	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2347		3679
2348	warn "load config and database again";	3680	warn "loading config and database again";
2349	cf::cfg_load;	3681	cf::reload_config;
2350	cf::db_load;
2351		3682
2352	warn "load extensions";	3683	warn "loading extensions";
2353	cf::load_extensions;	3684	cf::load_extensions;
2354		3685
2355	warn "reattach attachments to objects/players";	3686	warn "reattaching attachments to objects/players";
2356	_global_reattach;	3687	_global_reattach; # objects, sockets
2357	warn "reattach attachments to maps";	3688	warn "reattaching attachments to maps";
2358	reattach $_ for values %MAP;	3689	reattach $_ for values %MAP;
		3690	warn "reattaching attachments to players";
		3691	reattach $_ for values %PLAYER;
		3692
		3693	warn "leaving sync_job";
		3694
		3695	1
		3696	} or do {
		3697	warn $@;
		3698	cf::cleanup "error while reloading, exiting.";
		3699	};
		3700
		3701	warn "reloaded";
		3702	--$RELOAD;
		3703	}
		3704	};
		3705
		3706	our $RELOAD_WATCHER; # used only during reload
		3707
		3708	sub reload_perl() {
		3709	# doing reload synchronously and two reloads happen back-to-back,
		3710	# coro crashes during coro_state_free->destroy here.
		3711
		3712	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
		3713	do_reload_perl;
		3714	undef $RELOAD_WATCHER;
2359	};	3715	};
2360		3716	}
2361	if ($@) {
2362	warn $@;
2363	warn "error while reloading, exiting.";
2364	exit 1;
2365	}
2366
2367	warn "reloaded";
2368	};
2369		3717
2370	register_command "reload" => sub {	3718	register_command "reload" => sub {
2371	my ($who, $arg) = @_;	3719	my ($who, $arg) = @_;
2372		3720
2373	if ($who->flag (FLAG_WIZ)) {	3721	if ($who->flag (FLAG_WIZ)) {
2374	$who->message ("start of reload.");
2375	reload;
2376	$who->message ("end of reload.");	3722	$who->message ("reloading server.");
		3723	async {
		3724	$Coro::current->{desc} = "perl_reload";
		3725	reload_perl;
		3726	};
2377	}	3727	}
2378	};	3728	};
2379		3729
2380	unshift @INC, $LIBDIR;	3730	unshift @INC, $LIBDIR;
2381		3731
2382	$TICK_WATCHER = Event->timer (	3732	my $bug_warning = 0;
2383	reentrant => 0,
2384	prio => 0,
2385	at => $NEXT_TICK || $TICK,
2386	data => WF_AUTOCANCEL,
2387	cb => sub {
2388	$NOW = Event::time;
2389		3733
		3734	our @WAIT_FOR_TICK;
		3735	our @WAIT_FOR_TICK_BEGIN;
		3736
		3737	sub wait_for_tick {
		3738	return if tick_inhibit || $Coro::current == $Coro::main;
		3739
		3740	my $signal = new Coro::Signal;
		3741	push @WAIT_FOR_TICK, $signal;
		3742	$signal->wait;
		3743	}
		3744
		3745	sub wait_for_tick_begin {
		3746	return if tick_inhibit || $Coro::current == $Coro::main;
		3747
		3748	my $signal = new Coro::Signal;
		3749	push @WAIT_FOR_TICK_BEGIN, $signal;
		3750	$signal->wait;
		3751	}
		3752
		3753	sub tick {
		3754	if ($Coro::current != $Coro::main) {
		3755	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3756	unless ++$bug_warning > 10;
		3757	return;
		3758	}
		3759
2390	cf::server_tick; # one server iteration	3760	cf::server_tick; # one server iteration
2391	$RUNTIME += $TICK;
2392	$NEXT_TICK += $TICK;
2393		3761
2394	$WAIT_FOR_TICK->broadcast;	3762	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2395	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3763	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2396		3764	Coro::async_pool {
2397	# if we are delayed by four ticks or more, skip them all	3765	$Coro::current->{desc} = "runtime saver";
2398	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2399
2400	$TICK_WATCHER->at ($NEXT_TICK);
2401	$TICK_WATCHER->start;
2402	},
2403	);
2404
2405	IO::AIO::max_poll_time $TICK * 0.2;
2406
2407	Event->io (
2408	fd => IO::AIO::poll_fileno,
2409	poll => 'r',
2410	prio => 5,
2411	data => WF_AUTOCANCEL,
2412	cb => \&IO::AIO::poll_cb,
2413	);
2414
2415	Event->timer (
2416	data => WF_AUTOCANCEL,
2417	after => 0,
2418	interval => 10,
2419	cb => sub {
2420	(Coro::unblock_sub {
2421	write_runtime	3766	write_runtime_sync
2422	or warn "ERROR: unable to write runtime file: $!";	3767	or warn "ERROR: unable to write runtime file: $!";
2423	})->();	3768	};
2424	},	3769	}
2425	);	3770
		3771	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3772	$sig->send;
		3773	}
		3774	while (my $sig = shift @WAIT_FOR_TICK) {
		3775	$sig->send;
		3776	}
		3777
		3778	$LOAD = ($NOW - $TICK_START) / $TICK;
		3779	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3780
		3781	if (0) {
		3782	if ($NEXT_TICK) {
		3783	my $jitter = $TICK_START - $NEXT_TICK;
		3784	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3785	warn "jitter $JITTER\n";#d#
		3786	}
		3787	}
		3788	}
		3789
		3790	{
		3791	# configure BDB
		3792
		3793	BDB::min_parallel 8;
		3794	BDB::max_poll_reqs $TICK * 0.1;
		3795	$AnyEvent::BDB::WATCHER->priority (1);
		3796
		3797	unless ($DB_ENV) {
		3798	$DB_ENV = BDB::db_env_create;
		3799	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3800	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3801	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3802	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3803	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3804
		3805	cf::sync_job {
		3806	eval {
		3807	BDB::db_env_open
		3808	$DB_ENV,
		3809	$BDBDIR,
		3810	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3811	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3812	0666;
		3813
		3814	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3815	};
		3816
		3817	cf::cleanup "db_env_open(db): $@" if $@;
		3818	};
		3819	}
		3820
		3821	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3822	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3823	};
		3824	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3825	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3826	};
		3827	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3828	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3829	};
		3830	}
		3831
		3832	{
		3833	# configure IO::AIO
		3834
		3835	IO::AIO::min_parallel 8;
		3836	IO::AIO::max_poll_time $TICK * 0.1;
		3837	undef $AnyEvent::AIO::WATCHER;
		3838	}
		3839
		3840	my $_log_backtrace;
		3841
		3842	sub _log_backtrace {
		3843	my ($msg, @addr) = @_;
		3844
		3845	$msg =~ s/\n//;
		3846
		3847	# limit the # of concurrent backtraces
		3848	if ($_log_backtrace < 2) {
		3849	++$_log_backtrace;
		3850	my $perl_bt = Carp::longmess $msg;
		3851	async {
		3852	$Coro::current->{desc} = "abt $msg";
		3853
		3854	my @bt = fork_call {
		3855	@addr = map { sprintf "%x", $_ } @addr;
		3856	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3857	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3858	or die "addr2line: $!";
		3859
		3860	my @funcs;
		3861	my @res = <$fh>;
		3862	chomp for @res;
		3863	while (@res) {
		3864	my ($func, $line) = splice @res, 0, 2, ();
		3865	push @funcs, "[$func] $line";
		3866	}
		3867
		3868	@funcs
		3869	};
		3870
		3871	LOG llevInfo, "[ABT] $perl_bt\n";
		3872	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3873	LOG llevInfo, "[ABT] $_\n" for @bt;
		3874	--$_log_backtrace;
		3875	};
		3876	} else {
		3877	LOG llevInfo, "[ABT] $msg\n";
		3878	LOG llevInfo, "[ABT] [suppressed]\n";
		3879	}
		3880	}
		3881
		3882	# load additional modules
		3883	use cf::pod;
2426		3884
2427	END { cf::emergency_save }	3885	END { cf::emergency_save }
2428		3886
2429	1	3887	1
2430		3888

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