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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.190 by root, Mon Jan 22 03:44:41 2007 UTC vs.
Revision 1.452 by root, Tue Sep 23 00:24:52 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 3.4 ();	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, non-zero while in reload
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;
49	our $AIO_POLL_WATCHER;	91	our $LIBDIR = "$DATADIR/ext";
50	our $WRITE_RUNTIME_WATCHER;	92	our $PODDIR = "$DATADIR/pod";
		93	our $MAPDIR = "$DATADIR/" . mapdir;
		94	our $LOCALDIR = localdir;
		95	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		96	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		97	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		98	our $RANDOMDIR = "$LOCALDIR/random";
		99	our $BDBDIR = "$LOCALDIR/db";
		100	our $PIDFILE = "$LOCALDIR/pid";
		101	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		102
		103	our %RESOURCE;
		104
		105	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		106	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	107	our $NEXT_TICK;
52	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;
53		114
54	our %CFG;	115	our %CFG;
55		116
56	our $UPTIME; $UPTIME ||= time;	117	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	118	our $RUNTIME;
		119	our $NOW;
58		120
59	our %PLAYER; # all users	121	our (%PLAYER, %PLAYER_LOADING); # all users
60	our %MAP; # all maps	122	our (%MAP, %MAP_LOADING ); # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	123	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		124
67	# 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 ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	126	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		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 $TICK_START; # for load detecting purposes
		132
70	binmode STDOUT;	133	binmode STDOUT;
71	binmode STDERR;	134	binmode STDERR;
72		135
73	# read virtual server time, if available	136	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	137	unless ($RUNTIME || !-e $RUNTIMEFILE) {
75	open my $fh, "<", cf::localdir . "/runtime"	138	open my $fh, "<", $RUNTIMEFILE
76	or die "unable to read runtime file: $!";	139	or die "unable to read $RUNTIMEFILE file: $!";
77	$RUNTIME = <$fh> + 0.;	140	$RUNTIME = <$fh> + 0.;
78	}	141	}
79		142
80	mkdir cf::localdir;	143	mkdir $_
81	mkdir cf::localdir . "/" . cf::playerdir;	144	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir cf::localdir . "/" . cf::tmpdir;
83	mkdir cf::localdir . "/" . cf::uniquedir;
84	mkdir $RANDOM_MAPS;
85		145
86	our $EMERGENCY_POSITION;	146	our $EMERGENCY_POSITION;
		147
		148	sub cf::map::normalise;
87		149
88	#############################################################################	150	#############################################################################
89		151
90	=head2 GLOBAL VARIABLES	152	=head2 GLOBAL VARIABLES
91		153
…		…
98	=item $cf::RUNTIME	160	=item $cf::RUNTIME
99		161
100	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
101	every server tick.	163	every server tick.
102		164
103	=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
104		168
105	The perl library directory, where extensions and cf-specific modules can	169	Various directories - "/etc", read-only install directory, perl-library
106	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.
107		173
108	=item $cf::NOW	174	=item $cf::NOW
109		175
110	The time of the last (current) server tick.	176	The time of the last (current) server tick.
111		177
112	=item $cf::TICK	178	=item $cf::TICK
113		179
114	The interval between server ticks, in seconds.	180	The interval between server ticks, in seconds.
115		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
116	=item %cf::CFG	192	=item %cf::CFG
117		193
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	194	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
119	from wherever your confdir points to.	195	from wherever your confdir points to.
120		196
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	197	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		198
123	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
124	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
125	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.
126	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.
127		208
128	=back	209	=back
129		210
130	=cut	211	=cut
131		212
132	BEGIN {	213	BEGIN {
133	*CORE::GLOBAL::warn = sub {	214	*CORE::GLOBAL::warn = sub {
134	my $msg = join "", @_;	215	my $msg = join "", @_;
135	utf8::encode $msg;
136		216
137	$msg .= "\n"	217	$msg .= "\n"
138	unless $msg =~ /\n$/;	218	unless $msg =~ /\n$/;
139		219
		220	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		221
140	LOG llevError, $msg;	222	LOG llevError, $msg;
141	};	223	};
142	}	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#?
143		240
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	241	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	242	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	243	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	244	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@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';
149	@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)
150		248
151	# 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
152	# within the Safe compartment.	250	# within the Safe compartment.
153	for my $pkg (qw(	251	for my $pkg (qw(
154	cf::global cf::attachable	252	cf::global cf::attachable
155	cf::object cf::object::player	253	cf::object cf::object::player
156	cf::client cf::player	254	cf::client cf::player
157	cf::arch cf::living	255	cf::arch cf::living
		256	cf::map cf::mapspace
158	cf::map cf::party cf::region	257	cf::party cf::region
159	)) {	258	)) {
160	no strict 'refs';
161	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	259	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
162	}	260	}
163		261
164	$Event::DIED = sub {	262	$EV::DIED = sub {
165	warn "error in event callback: @_";	263	warn "error in event callback: @_";
166	};	264	};
		265
		266	#############################################################################
167		267
168	=head2 UTILITY FUNCTIONS	268	=head2 UTILITY FUNCTIONS
169		269
170	=over 4	270	=over 4
171		271
…		…
190	$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;
191	$d	291	$d
192	} || "[unable to dump $_[0]: '$@']";	292	} || "[unable to dump $_[0]: '$@']";
193	}	293	}
194		294
195	use JSON::Syck (); # TODO# replace by JSON::PC once working
196
197	=item $ref = cf::from_json $json	295	=item $ref = cf::decode_json $json
198		296
199	Converts a JSON string into the corresponding perl data structure.	297	Converts a JSON string into the corresponding perl data structure.
200		298
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	299	=item $json = cf::encode_json $ref
209		300
210	Converts a perl data structure into its JSON representation.	301	Converts a perl data structure into its JSON representation.
211		302
212	=cut	303	=cut
213		304
214	sub to_json($) {	305	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	306
216	JSON::Syck::Dump $_[0]	307	sub encode_json($) { $json_coder->encode ($_[0]) }
217	}	308	sub decode_json($) { $json_coder->decode ($_[0]) }
218		309
219	=item cf::lock_wait $string	310	=item cf::lock_wait $string
220		311
221	Wait until the given lock is available. See cf::lock_acquire.	312	Wait until the given lock is available. See cf::lock_acquire.
222		313
…		…
225	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
226	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,
227	for example when the coroutine gets canceled), the lock is automatically	318	for example when the coroutine gets canceled), the lock is automatically
228	returned.	319	returned.
229		320
		321	Locks are *not* recursive, locking from the same coro twice results in a
		322	deadlocked coro.
		323
230	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
231	uses map_find and cf::map::load uses map_load).	325	uses map_find and cf::map::load uses map_load).
232		326
		327	=item $locked = cf::lock_active $string
		328
		329	Return true if the lock is currently active, i.e. somebody has locked it.
		330
233	=cut	331	=cut
234		332
235	our %LOCK;	333	our %LOCK;
		334	our %LOCKER;#d#
236		335
237	sub lock_wait($) {	336	sub lock_wait($) {
238	my ($key) = @_;	337	my ($key) = @_;
239		338
		339	if ($LOCKER{$key} == $Coro::current) {#d#
		340	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		341	return;#d#
		342	}#d#
		343
240	# wait for lock, if any	344	# wait for lock, if any
241	while ($LOCK{$key}) {	345	while ($LOCK{$key}) {
		346	#local $Coro::current->{desc} = "$Coro::current->{desc} <waiting for lock $key>";
242	push @{ $LOCK{$key} }, $Coro::current;	347	push @{ $LOCK{$key} }, $Coro::current;
243	Coro::schedule;	348	Coro::schedule;
244	}	349	}
245	}	350	}
246		351
…		…
249		354
250	# wait, to be sure we are not locked	355	# wait, to be sure we are not locked
251	lock_wait $key;	356	lock_wait $key;
252		357
253	$LOCK{$key} = [];	358	$LOCK{$key} = [];
		359	$LOCKER{$key} = $Coro::current;#d#
254		360
255	Coro::guard {	361	Coro::guard {
		362	delete $LOCKER{$key};#d#
256	# wake up all waiters, to be on the safe side	363	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };	364	$_->ready for @{ delete $LOCK{$key} };
258	}	365	}
259	}	366	}
260		367
		368	sub lock_active($) {
		369	my ($key) = @_;
		370
		371	! ! $LOCK{$key}
		372	}
		373
261	sub freeze_mainloop {	374	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	375	tick_inhibit_inc;
263		376
264	my $guard = Coro::guard {	377	Coro::guard \&tick_inhibit_dec;
265	$TICK_WATCHER->start;	378	}
266	$WRITE_RUNTIME_WATCHER->start;	379
		380	=item cf::periodic $interval, $cb
		381
		382	Like EV::periodic, but randomly selects a starting point so that the actions
		383	get spread over timer.
		384
		385	=cut
		386
		387	sub periodic($$) {
		388	my ($interval, $cb) = @_;
		389
		390	my $start = rand List::Util::min 180, $interval;
		391
		392	EV::periodic $start, $interval, 0, $cb
		393	}
		394
		395	=item cf::get_slot $time[, $priority[, $name]]
		396
		397	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		398	This call blocks and returns only when you have at least C<$time> seconds
		399	of cpu time till the next tick. The slot is only valid till the next cede.
		400
		401	The optional C<$name> can be used to identify the job to run. It might be
		402	used for statistical purposes and should identify the same time-class.
		403
		404	Useful for short background jobs.
		405
		406	=cut
		407
		408	our @SLOT_QUEUE;
		409	our $SLOT_QUEUE;
		410
		411	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		412	$SLOT_QUEUE = Coro::async {
		413	$Coro::current->desc ("timeslot manager");
		414
		415	my $signal = new Coro::Signal;
		416
		417	while () {
		418	next_job:
		419	my $avail = cf::till_tick;
		420	if ($avail > 0.01) {
		421	for (0 .. $#SLOT_QUEUE) {
		422	if ($SLOT_QUEUE[$_][0] < $avail) {
		423	my $job = splice @SLOT_QUEUE, $_, 1, ();
		424	$job->[2]->send;
		425	Coro::cede;
		426	goto next_job;
		427	}
		428	}
		429	}
		430
		431	if (@SLOT_QUEUE) {
		432	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		433	push @cf::WAIT_FOR_TICK, $signal;
		434	$signal->wait;
		435	} else {
		436	Coro::schedule;
		437	}
267	};	438	}
268	$WRITE_RUNTIME_WATCHER->stop;	439	};
269	$TICK_WATCHER->stop;	440
270	$guard	441	sub get_slot($;$$) {
		442	return if tick_inhibit || $Coro::current == $Coro::main;
		443
		444	my ($time, $pri, $name) = @_;
		445
		446	$time = $TICK * .6 if $time > $TICK * .6;
		447	my $sig = new Coro::Signal;
		448
		449	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		450	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		451	$SLOT_QUEUE->ready;
		452	$sig->wait;
271	}	453	}
272		454
273	=item cf::async { BLOCK }	455	=item cf::async { BLOCK }
274		456
275	Currently the same as Coro::async_pool, meaning you cannot use	457	Currently the same as Coro::async_pool, meaning you cannot use
…		…
280		462
281	BEGIN { *async = \&Coro::async_pool }	463	BEGIN { *async = \&Coro::async_pool }
282		464
283	=item cf::sync_job { BLOCK }	465	=item cf::sync_job { BLOCK }
284		466
285	The design of crossfire+ requires that the main coro ($Coro::main) is	467	The design of Deliantra requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	468	is always able to handle events or runnable, as Deliantra is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	469	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		470	acceptable.
288		471
289	If it must be done, put the blocking parts into C<sync_job>. This will run	472	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	473	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	474	server will be frozen during this time, so the block should either finish
292	fast or be very important.	475	fast or be very important.
…		…
295		478
296	sub sync_job(&) {	479	sub sync_job(&) {
297	my ($job) = @_;	480	my ($job) = @_;
298		481
299	if ($Coro::current == $Coro::main) {	482	if ($Coro::current == $Coro::main) {
		483	my $time = EV::time;
		484
300	# this is the main coro, too bad, we have to block	485	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	486	# till the operation succeeds, freezing the server :/
302		487
303	# TODO: use suspend/resume instead	488	LOG llevError, Carp::longmess "sync job";#d#
304	# (but this is cancel-safe)	489
305	my $freeze_guard = freeze_mainloop;	490	my $freeze_guard = freeze_mainloop;
306		491
307	my $busy = 1;	492	my $busy = 1;
308	my @res;	493	my @res;
309		494
310	(async {	495	(async {
		496	$Coro::current->desc ("sync job coro");
311	@res = eval { $job->() };	497	@res = eval { $job->() };
312	warn $@ if $@;	498	warn $@ if $@;
313	undef $busy;	499	undef $busy;
314	})->prio (Coro::PRIO_MAX);	500	})->prio (Coro::PRIO_MAX);
315		501
316	while ($busy) {	502	while ($busy) {
317	Coro::cede or Event::one_event;	503	if (Coro::nready) {
		504	Coro::cede_notself;
		505	} else {
		506	EV::loop EV::LOOP_ONESHOT;
318	}	507	}
		508	}
		509
		510	my $time = EV::time - $time;
		511
		512	$TICK_START += $time; # do not account sync jobs to server load
319		513
320	wantarray ? @res : $res[0]	514	wantarray ? @res : $res[0]
321	} else {	515	} else {
322	# we are in another coroutine, how wonderful, everything just works	516	# we are in another coroutine, how wonderful, everything just works
323		517
…		…
343	$EXT_CORO{$coro+0} = $coro;	537	$EXT_CORO{$coro+0} = $coro;
344		538
345	$coro	539	$coro
346	}	540	}
347		541
348	sub write_runtime {	542	=item fork_call { }, $args
349	my $runtime = cf::localdir . "/runtime";
350		543
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	544	Executes the given code block with the given arguments in a seperate
352	or return;	545	process, returning the results. Everything must be serialisable with
		546	Coro::Storable. May, of course, block. Note that the executed sub may
		547	never block itself or use any form of event handling.
353		548
354	my $value = $cf::RUNTIME + 90 + 10;	549	=cut
355	# 10 is the runtime save interval, for a monotonic clock
356	# 60 allows for the watchdog to kill the server.
357		550
358	(aio_write $fh, 0, (length $value), $value, 0) <= 0	551	sub fork_call(&@) {
359	and return;	552	my ($cb, @args) = @_;
360		553
361	aio_fsync $fh	554	# we seemingly have to make a local copy of the whole thing,
362	and return;	555	# otherwise perl prematurely frees the stuff :/
		556	# TODO: investigate and fix (likely this will be rather laborious)
363		557
364	close $fh	558	my @res = Coro::Util::fork_eval {
365	or return;	559	reset_signals;
		560	&$cb
		561	}, @args;
366		562
367	aio_rename "$runtime~", $runtime	563	wantarray ? @res : $res[-1]
368	and return;	564	}
369		565
		566	=item $coin = coin_from_name $name
		567
		568	=cut
		569
		570	our %coin_alias = (
		571	"silver" => "silvercoin",
		572	"silvercoin" => "silvercoin",
		573	"silvercoins" => "silvercoin",
		574	"gold" => "goldcoin",
		575	"goldcoin" => "goldcoin",
		576	"goldcoins" => "goldcoin",
		577	"platinum" => "platinacoin",
		578	"platinumcoin" => "platinacoin",
		579	"platinumcoins" => "platinacoin",
		580	"platina" => "platinacoin",
		581	"platinacoin" => "platinacoin",
		582	"platinacoins" => "platinacoin",
		583	"royalty" => "royalty",
		584	"royalties" => "royalty",
		585	);
		586
		587	sub coin_from_name($) {
		588	$coin_alias{$_[0]}
		589	? cf::arch::find $coin_alias{$_[0]}
		590	: undef
		591	}
		592
		593	=item $value = cf::db_get $family => $key
		594
		595	Returns a single value from the environment database.
		596
		597	=item cf::db_put $family => $key => $value
		598
		599	Stores the given C<$value> in the family. It can currently store binary
		600	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		601
		602	=item $db = cf::db_table "name"
		603
		604	Create and/or open a new database table. The string must not be "db" and must be unique
		605	within each server.
		606
		607	=cut
		608
		609	sub db_table($) {
		610	my ($name) = @_;
		611	my $db = BDB::db_create $DB_ENV;
		612
		613	eval {
		614	$db->set_flags (BDB::CHKSUM);
		615
		616	utf8::encode $name;
		617	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		618	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		619	cf::cleanup "db_open(db): $!" if $!;
		620	};
		621	cf::cleanup "db_open(db): $@" if $@;
		622
		623	$db
		624	}
		625
		626	our $DB;
		627
		628	sub db_init {
		629	cf::sync_job {
		630	$DB ||= db_table "db";
		631	};
		632	}
		633
		634	sub db_get($$) {
		635	my $key = "$_[0]/$_[1]";
		636
		637	cf::sync_job {
		638	BDB::db_get $DB, undef, $key, my $data;
		639
		640	$! ? ()
		641	: $data
370	1	642	}
		643	}
		644
		645	sub db_put($$$) {
		646	BDB::dbreq_pri 4;
		647	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		648	}
		649
		650	=item cf::cache $id => [$paths...], $processversion => $process
		651
		652	Generic caching function that returns the value of the resource $id,
		653	caching and regenerating as required.
		654
		655	This function can block.
		656
		657	=cut
		658
		659	sub cache {
		660	my ($id, $src, $processversion, $process) = @_;
		661
		662	my $meta =
		663	join "\x00",
		664	$processversion,
		665	map {
		666	aio_stat $_
		667	and Carp::croak "$_: $!";
		668
		669	($_, (stat _)[7,9])
		670	} @$src;
		671
		672	my $dbmeta = db_get cache => "$id/meta";
		673	if ($dbmeta ne $meta) {
		674	# changed, we may need to process
		675
		676	my @data;
		677	my $md5;
		678
		679	for (0 .. $#$src) {
		680	0 <= aio_load $src->[$_], $data[$_]
		681	or Carp::croak "$src->[$_]: $!";
		682	}
		683
		684	# if processing is expensive, check
		685	# checksum first
		686	if (1) {
		687	$md5 =
		688	join "\x00",
		689	$processversion,
		690	map {
		691	cf::cede_to_tick;
		692	($src->[$_], Digest::MD5::md5_hex $data[$_])
		693	} 0.. $#$src;
		694
		695
		696	my $dbmd5 = db_get cache => "$id/md5";
		697	if ($dbmd5 eq $md5) {
		698	db_put cache => "$id/meta", $meta;
		699
		700	return db_get cache => "$id/data";
		701	}
		702	}
		703
		704	my $t1 = Time::HiRes::time;
		705	my $data = $process->(\@data);
		706	my $t2 = Time::HiRes::time;
		707
		708	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		709
		710	db_put cache => "$id/data", $data;
		711	db_put cache => "$id/md5" , $md5;
		712	db_put cache => "$id/meta", $meta;
		713
		714	return $data;
		715	}
		716
		717	db_get cache => "$id/data"
		718	}
		719
		720	=item cf::datalog type => key => value, ...
		721
		722	Log a datalog packet of the given type with the given key-value pairs.
		723
		724	=cut
		725
		726	sub datalog($@) {
		727	my ($type, %kv) = @_;
		728	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
371	}	729	}
372		730
373	=back	731	=back
374		732
375	=cut	733	=cut
376		734
377	#############################################################################	735	#############################################################################
378		736
379	=head2 ATTACHABLE OBJECTS	737	=head2 ATTACHABLE OBJECTS
380		738
381	Many objects in crossfire are so-called attachable objects. That means you can	739	Many objects in deliantra are so-called attachable objects. That means you can
382	attach callbacks/event handlers (a collection of which is called an "attachment")	740	attach callbacks/event handlers (a collection of which is called an "attachment")
383	to it. All such attachable objects support the following methods.	741	to it. All such attachable objects support the following methods.
384		742
385	In the following description, CLASS can be any of C<global>, C<object>	743	In the following description, CLASS can be any of C<global>, C<object>
386	C<player>, C<client> or C<map> (i.e. the attachable objects in	744	C<player>, C<client> or C<map> (i.e. the attachable objects in
387	crossfire+).	745	Deliantra).
388		746
389	=over 4	747	=over 4
390		748
391	=item $attachable->attach ($attachment, key => $value...)	749	=item $attachable->attach ($attachment, key => $value...)
392		750
…		…
436	=item cf::CLASS::attachment $name, ...	794	=item cf::CLASS::attachment $name, ...
437		795
438	Register an attachment by C<$name> through which attachable objects of the	796	Register an attachment by C<$name> through which attachable objects of the
439	given CLASS can refer to this attachment.	797	given CLASS can refer to this attachment.
440		798
441	Some classes such as crossfire maps and objects can specify attachments	799	Some classes such as deliantra maps and objects can specify attachments
442	that are attached at load/instantiate time, thus the need for a name.	800	that are attached at load/instantiate time, thus the need for a name.
443		801
444	These calls expect any number of the following handler/hook descriptions:	802	These calls expect any number of the following handler/hook descriptions:
445		803
446	=over 4	804	=over 4
…		…
555	$registry = $CB_TYPE[$object_type] ||= [];	913	$registry = $CB_TYPE[$object_type] ||= [];
556		914
557	} elsif ($type eq "subtype") {	915	} elsif ($type eq "subtype") {
558	defined $object_type or Carp::croak "subtype specified without type";	916	defined $object_type or Carp::croak "subtype specified without type";
559	my $object_subtype = shift @arg;	917	my $object_subtype = shift @arg;
560	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	918	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
561		919
562	} elsif ($type eq "package") {	920	} elsif ($type eq "package") {
563	my $pkg = shift @arg;	921	my $pkg = shift @arg;
564		922
565	while (my ($name, $id) = each %cb_id) {	923	while (my ($name, $id) = each %cb_id) {
…		…
594	_attach $registry, $klass, @attach;	952	_attach $registry, $klass, @attach;
595	}	953	}
596		954
597	$obj->{$name} = \%arg;	955	$obj->{$name} = \%arg;
598	} else {	956	} else {
599	warn "object uses attachment '$name' that is not available, postponing.\n";	957	warn "object uses attachment '$name' which is not available, postponing.\n";
600	}	958	}
601		959
602	$obj->{_attachment}{$name} = undef;	960	$obj->{_attachment}{$name} = undef;
603	}	961	}
604		962
…		…
606	if (ref $_[0]) {	964	if (ref $_[0]) {
607	_object_attach @_;	965	_object_attach @_;
608	} else {	966	} else {
609	_attach shift->_attach_registry, @_;	967	_attach shift->_attach_registry, @_;
610	}	968	}
		969	_recalc_want;
611	};	970	};
612		971
613	# all those should be optimised	972	# all those should be optimised
614	sub cf::attachable::detach {	973	sub cf::attachable::detach {
615	my ($obj, $name) = @_;	974	my ($obj, $name) = @_;
…		…
618	delete $obj->{_attachment}{$name};	977	delete $obj->{_attachment}{$name};
619	reattach ($obj);	978	reattach ($obj);
620	} else {	979	} else {
621	Carp::croak "cannot, currently, detach class attachments";	980	Carp::croak "cannot, currently, detach class attachments";
622	}	981	}
		982	_recalc_want;
623	};	983	};
624		984
625	sub cf::attachable::attached {	985	sub cf::attachable::attached {
626	my ($obj, $name) = @_;	986	my ($obj, $name) = @_;
627		987
…		…
642	";	1002	";
643	die if $@;	1003	die if $@;
644	}	1004	}
645		1005
646	our $override;	1006	our $override;
647	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1007	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
648		1008
649	sub override {	1009	sub override {
650	$override = 1;	1010	$override = 1;
651	@invoke_results = ();	1011	@INVOKE_RESULTS = (@_);
652	}	1012	}
653		1013
654	sub do_invoke {	1014	sub do_invoke {
655	my $event = shift;	1015	my $event = shift;
656	my $callbacks = shift;	1016	my $callbacks = shift;
657		1017
658	@invoke_results = ();	1018	@INVOKE_RESULTS = ();
659		1019
660	local $override;	1020	local $override;
661		1021
662	for (@$callbacks) {	1022	for (@$callbacks) {
663	eval { &{$_->[1]} };	1023	eval { &{$_->[1]} };
…		…
672	}	1032	}
673		1033
674	0	1034	0
675	}	1035	}
676		1036
677	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1037	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
678		1038
679	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1039	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
680		1040
681	Generate an object-specific event with the given arguments.	1041	Generate an object-specific event with the given arguments.
682		1042
683	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1043	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
684	removed in future versions), and there is no public API to access override	1044	removed in future versions), and there is no public API to access override
685	results (if you must, access C<@cf::invoke_results> directly).	1045	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
686		1046
687	=back	1047	=back
688		1048
689	=cut	1049	=cut
690		1050
691	#############################################################################	1051	#############################################################################
692	# object support	1052	# object support
		1053
		1054	sub _object_equal($$);
		1055	sub _object_equal($$) {
		1056	my ($a, $b) = @_;
		1057
		1058	return 0 unless (ref $a) eq (ref $b);
		1059
		1060	if ("HASH" eq ref $a) {
		1061	my @ka = keys %$a;
		1062	my @kb = keys %$b;
		1063
		1064	return 0 if @ka != @kb;
		1065
		1066	for (0 .. $#ka) {
		1067	return 0 unless $ka[$_] eq $kb[$_];
		1068	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1069	}
		1070
		1071	} elsif ("ARRAY" eq ref $a) {
		1072
		1073	return 0 if @$a != @$b;
		1074
		1075	for (0 .. $#$a) {
		1076	return 0 unless _object_equal $a->[$_], $b->[$_];
		1077	}
		1078
		1079	} elsif ($a ne $b) {
		1080	return 0;
		1081	}
		1082
		1083	1
		1084	}
		1085
		1086	our $SLOW_MERGES;#d#
		1087	sub _can_merge {
		1088	my ($ob1, $ob2) = @_;
		1089
		1090	++$SLOW_MERGES;#d#
		1091
		1092	# we do the slow way here
		1093	return _object_equal $ob1, $ob2
		1094	}
693		1095
694	sub reattach {	1096	sub reattach {
695	# basically do the same as instantiate, without calling instantiate	1097	# basically do the same as instantiate, without calling instantiate
696	my ($obj) = @_;	1098	my ($obj) = @_;
697		1099
		1100	# no longer needed after getting rid of delete_package?
698	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1101	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
699		1102
700	my $registry = $obj->registry;	1103	my $registry = $obj->registry;
701		1104
702	@$registry = ();	1105	@$registry = ();
703		1106
…		…
718	cf::attachable->attach (	1121	cf::attachable->attach (
719	prio => -1000000,	1122	prio => -1000000,
720	on_instantiate => sub {	1123	on_instantiate => sub {
721	my ($obj, $data) = @_;	1124	my ($obj, $data) = @_;
722		1125
723	$data = from_json $data;	1126	$data = decode_json $data;
724		1127
725	for (@$data) {	1128	for (@$data) {
726	my ($name, $args) = @$_;	1129	my ($name, $args) = @$_;
727		1130
728	$obj->attach ($name, %{$args || {} });	1131	$obj->attach ($name, %{$args || {} });
…		…
744	sub object_freezer_save {	1147	sub object_freezer_save {
745	my ($filename, $rdata, $objs) = @_;	1148	my ($filename, $rdata, $objs) = @_;
746		1149
747	sync_job {	1150	sync_job {
748	if (length $$rdata) {	1151	if (length $$rdata) {
		1152	utf8::decode (my $decname = $filename);
749	warn sprintf "saving %s (%d,%d)\n",	1153	warn sprintf "saving %s (%d,%d)\n",
750	$filename, length $$rdata, scalar @$objs;	1154	$decname, length $$rdata, scalar @$objs;
751		1155
752	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1156	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
753	chmod SAVE_MODE, $fh;	1157	aio_chmod $fh, SAVE_MODE;
754	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1158	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
755	aio_fsync $fh;	1159	aio_fsync $fh if $cf::USE_FSYNC;
756	close $fh;	1160	aio_close $fh;
757		1161
758	if (@$objs) {	1162	if (@$objs) {
759	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1163	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
760	chmod SAVE_MODE, $fh;	1164	aio_chmod $fh, SAVE_MODE;
761	my $data = Storable::nfreeze { version => 1, objs => $objs };	1165	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
762	aio_write $fh, 0, (length $data), $data, 0;	1166	aio_write $fh, 0, (length $data), $data, 0;
763	aio_fsync $fh;	1167	aio_fsync $fh if $cf::USE_FSYNC;
764	close $fh;	1168	aio_close $fh;
765	aio_rename "$filename.pst~", "$filename.pst";	1169	aio_rename "$filename.pst~", "$filename.pst";
766	}	1170	}
767	} else {	1171	} else {
768	aio_unlink "$filename.pst";	1172	aio_unlink "$filename.pst";
769	}	1173	}
…		…
774	}	1178	}
775	} else {	1179	} else {
776	aio_unlink $filename;	1180	aio_unlink $filename;
777	aio_unlink "$filename.pst";	1181	aio_unlink "$filename.pst";
778	}	1182	}
779	}	1183	};
780	}	1184	}
781		1185
782	sub object_freezer_as_string {	1186	sub object_freezer_as_string {
783	my ($rdata, $objs) = @_;	1187	my ($rdata, $objs) = @_;
784		1188
…		…
796	or return;	1200	or return;
797		1201
798	unless (aio_stat "$filename.pst") {	1202	unless (aio_stat "$filename.pst") {
799	(aio_load "$filename.pst", $av) >= 0	1203	(aio_load "$filename.pst", $av) >= 0
800	or return;	1204	or return;
		1205
801	$av = eval { (Storable::thaw $av)->{objs} };	1206	my $st = eval { Coro::Storable::thaw $av };
		1207	$av = $st->{objs};
802	}	1208	}
803		1209
		1210	utf8::decode (my $decname = $filename);
804	warn sprintf "loading %s (%d)\n",	1211	warn sprintf "loading %s (%d,%d)\n",
805	$filename, length $data, scalar @{$av || []};#d#	1212	$decname, length $data, scalar @{$av || []};
		1213
806	return ($data, $av);	1214	($data, $av)
807	}	1215	}
		1216
		1217	=head2 COMMAND CALLBACKS
		1218
		1219	=over 4
		1220
		1221	=cut
808		1222
809	#############################################################################	1223	#############################################################################
810	# command handling &c	1224	# command handling &c
811		1225
812	=item cf::register_command $name => \&callback($ob,$args);	1226	=item cf::register_command $name => \&callback($ob,$args);
…		…
825	push @{ $COMMAND{$name} }, [$caller, $cb];	1239	push @{ $COMMAND{$name} }, [$caller, $cb];
826	}	1240	}
827		1241
828	=item cf::register_extcmd $name => \&callback($pl,$packet);	1242	=item cf::register_extcmd $name => \&callback($pl,$packet);
829		1243
830	Register a callbackf ro execution when the client sends an extcmd packet.	1244	Register a callback for execution when the client sends an (synchronous)
		1245	extcmd packet. Ext commands will be processed in the order they are
		1246	received by the server, like other user commands. The first argument is
		1247	the logged-in player. Ext commands can only be processed after a player
		1248	has logged in successfully.
831		1249
832	If the callback returns something, it is sent back as if reply was being	1250	If the callback returns something, it is sent back as if reply was being
833	called.	1251	called.
834		1252
		1253	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1254
		1255	Register a callback for execution when the client sends an (asynchronous)
		1256	exticmd packet. Exti commands are processed by the server as soon as they
		1257	are received, i.e. out of order w.r.t. other commands. The first argument
		1258	is a client socket. Exti commands can be received anytime, even before
		1259	log-in.
		1260
		1261	If the callback returns something, it is sent back as if reply was being
		1262	called.
		1263
835	=cut	1264	=cut
836		1265
837	sub register_extcmd {	1266	sub register_extcmd {
838	my ($name, $cb) = @_;	1267	my ($name, $cb) = @_;
839		1268
840	$EXTCMD{$name} = $cb;	1269	$EXTCMD{$name} = $cb;
		1270	}
		1271
		1272	sub register_exticmd {
		1273	my ($name, $cb) = @_;
		1274
		1275	$EXTICMD{$name} = $cb;
841	}	1276	}
842		1277
843	cf::player->attach (	1278	cf::player->attach (
844	on_command => sub {	1279	on_command => sub {
845	my ($pl, $name, $params) = @_;	1280	my ($pl, $name, $params) = @_;
…		…
854	cf::override;	1289	cf::override;
855	},	1290	},
856	on_extcmd => sub {	1291	on_extcmd => sub {
857	my ($pl, $buf) = @_;	1292	my ($pl, $buf) = @_;
858		1293
859	my $msg = eval { from_json $buf };	1294	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
860		1295
861	if (ref $msg) {	1296	if (ref $msg) {
		1297	my ($type, $reply, @payload) =
		1298	"ARRAY" eq ref $msg
		1299	? @$msg
		1300	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1301
		1302	my @reply;
		1303
862	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1304	if (my $cb = $EXTCMD{$type}) {
863	if (my %reply = $cb->($pl, $msg)) {	1305	@reply = $cb->($pl, @payload);
864	$pl->ext_reply ($msg->{msgid}, %reply);
865	}
866	}	1306	}
		1307
		1308	$pl->ext_reply ($reply, @reply)
		1309	if $reply;
		1310
867	} else {	1311	} else {
868	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1312	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
869	}	1313	}
870		1314
871	cf::override;	1315	cf::override;
872	},	1316	},
873	);	1317	);
874		1318
875	sub load_extension {
876	my ($path) = @_;
877
878	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
879	my $base = $1;
880	my $pkg = $1;
881	$pkg =~ s/[^[:word:]]/_/g;
882	$pkg = "ext::$pkg";
883
884	warn "... loading '$path' into '$pkg'\n";
885
886	open my $fh, "<:utf8", $path
887	or die "$path: $!";
888
889	my $source =
890	"package $pkg; use strict; use utf8;\n"
891	. "#line 1 \"$path\"\n{\n"
892	. (do { local $/; <$fh> })
893	. "\n};\n1";
894
895	unless (eval $source) {
896	my $msg = $@ ? "$path: $@\n"
897	: "extension disabled.\n";
898	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
899	warn $@;
900	warn "mandatory extension failed to load, exiting.\n";
901	exit 1;
902	}
903	die $@;
904	}
905
906	push @EXTS, $pkg;
907	}
908
909	sub load_extensions {	1319	sub load_extensions {
		1320	cf::sync_job {
		1321	my %todo;
		1322
910	for my $ext (<$LIBDIR/*.ext>) {	1323	for my $path (<$LIBDIR/*.ext>) {
911	next unless -r $ext;	1324	next unless -r $path;
912	eval {	1325
913	load_extension $ext;	1326	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1327	my $base = $1;
		1328	my $pkg = $1;
		1329	$pkg =~ s/[^[:word:]]/_/g;
		1330	$pkg = "ext::$pkg";
		1331
		1332	open my $fh, "<:utf8", $path
		1333	or die "$path: $!";
		1334
		1335	my $source = do { local $/; <$fh> };
		1336
		1337	my %ext = (
		1338	path => $path,
		1339	base => $base,
		1340	pkg => $pkg,
		1341	);
		1342
		1343	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1344	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1345
		1346	$ext{source} =
		1347	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1348	. "#line 1 \"$path\"\n{\n"
		1349	. $source
		1350	. "\n};\n1";
		1351
		1352	$todo{$base} = \%ext;
		1353	}
		1354
		1355	my %done;
		1356	while (%todo) {
		1357	my $progress;
		1358
		1359	while (my ($k, $v) = each %todo) {
		1360	for (split /,\s*/, $v->{meta}{depends}) {
		1361	goto skip
		1362	unless exists $done{$_};
		1363	}
		1364
		1365	warn "... loading '$k' into '$v->{pkg}'\n";
		1366
		1367	unless (eval $v->{source}) {
		1368	my $msg = $@ ? "$v->{path}: $@\n"
		1369	: "$v->{base}: extension inactive.\n";
		1370
		1371	if (exists $v->{meta}{mandatory}) {
		1372	warn $msg;
		1373	cf::cleanup "mandatory extension failed to load, exiting.";
		1374	}
		1375
		1376	warn $msg;
		1377	}
		1378
		1379	$done{$k} = delete $todo{$k};
		1380	push @EXTS, $v->{pkg};
		1381	$progress = 1;
914	1	1382	}
915	} or warn "$ext not loaded: $@";	1383
		1384	skip:
		1385	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1386	unless $progress;
		1387	}
916	}	1388	};
917	}	1389	}
918		1390
919	#############################################################################	1391	#############################################################################
920		1392
		1393	=back
		1394
921	=head2 CORE EXTENSIONS	1395	=head2 CORE EXTENSIONS
922		1396
923	Functions and methods that extend core crossfire objects.	1397	Functions and methods that extend core deliantra objects.
924		1398
925	=cut	1399	=cut
926		1400
927	package cf::player;	1401	package cf::player;
928		1402
…		…
930		1404
931	=head3 cf::player	1405	=head3 cf::player
932		1406
933	=over 4	1407	=over 4
934		1408
		1409	=item cf::player::num_playing
		1410
		1411	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1412
		1413	=cut
		1414
		1415	sub num_playing {
		1416	scalar grep
		1417	$_->ob->map
		1418	&& !$_->hidden
		1419	&& !$_->ob->flag (cf::FLAG_WIZ),
		1420	cf::player::list
		1421	}
		1422
935	=item cf::player::find $login	1423	=item cf::player::find $login
936		1424
937	Returns the given player object, loading it if necessary (might block).	1425	Returns the given player object, loading it if necessary (might block).
938		1426
939	=cut	1427	=cut
940		1428
941	sub playerdir($) {	1429	sub playerdir($) {
942	cf::localdir	1430	"$PLAYERDIR/"
943	. "/"
944	. cf::playerdir
945	. "/"
946	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1431	. (ref $_[0] ? $_[0]->ob->name : $_[0])
947	}	1432	}
948		1433
949	sub path($) {	1434	sub path($) {
950	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1435	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
951		1436
952	(playerdir $login) . "/$login.pl"	1437	(playerdir $login) . "/playerdata"
953	}	1438	}
954		1439
955	sub find_active($) {	1440	sub find_active($) {
956	$cf::PLAYER{$_[0]}	1441	$cf::PLAYER{$_[0]}
957	and $cf::PLAYER{$_[0]}->active	1442	and $cf::PLAYER{$_[0]}->active
…		…
960		1445
961	sub exists($) {	1446	sub exists($) {
962	my ($login) = @_;	1447	my ($login) = @_;
963		1448
964	$cf::PLAYER{$login}	1449	$cf::PLAYER{$login}
965	or cf::sync_job { !aio_stat path $login }	1450	or !aio_stat path $login
966	}	1451	}
967		1452
968	sub find($) {	1453	sub find($) {
969	return $cf::PLAYER{$_[0]} || do {	1454	return $cf::PLAYER{$_[0]} || do {
970	my $login = $_[0];	1455	my $login = $_[0];
971		1456
972	my $guard = cf::lock_acquire "user_find:$login";	1457	my $guard = cf::lock_acquire "user_find:$login";
973		1458
974	$cf::PLAYER{$_[0]} || do {	1459	$cf::PLAYER{$_[0]} || do {
975	my $pl = load_pl path $login	1460	# rename old playerfiles to new ones
		1461	#TODO: remove when no longer required
		1462	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1463	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1464	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1465	aio_unlink +(playerdir $login) . "/$login.pl";
		1466
		1467	my $f = new_from_file cf::object::thawer path $login
976	or return;	1468	or return;
		1469
		1470	my $pl = cf::player::load_pl $f
		1471	or return;
		1472
		1473	local $cf::PLAYER_LOADING{$login} = $pl;
		1474	$f->resolve_delayed_derefs;
977	$cf::PLAYER{$login} = $pl	1475	$cf::PLAYER{$login} = $pl
978	}	1476	}
979	}	1477	}
980	}	1478	}
981		1479
…		…
990	return if $pl->{deny_save};	1488	return if $pl->{deny_save};
991		1489
992	aio_mkdir playerdir $pl, 0770;	1490	aio_mkdir playerdir $pl, 0770;
993	$pl->{last_save} = $cf::RUNTIME;	1491	$pl->{last_save} = $cf::RUNTIME;
994		1492
		1493	cf::get_slot 0.01;
		1494
995	$pl->save_pl ($path);	1495	$pl->save_pl ($path);
996	Coro::cede;	1496	cf::cede_to_tick;
997	}	1497	}
998		1498
999	sub new($) {	1499	sub new($) {
1000	my ($login) = @_;	1500	my ($login) = @_;
1001		1501
…		…
1007	$cf::PLAYER{$login} = $self;	1507	$cf::PLAYER{$login} = $self;
1008		1508
1009	$self	1509	$self
1010	}	1510	}
1011		1511
		1512	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1513
		1514	=cut
		1515
		1516	sub send_msg {
		1517	my $ns = shift->ns
		1518	or return;
		1519	$ns->send_msg (@_);
		1520	}
		1521
1012	=item $pl->quit_character	1522	=item $pl->quit_character
1013		1523
1014	Nukes the player without looking back. If logged in, the connection will	1524	Nukes the player without looking back. If logged in, the connection will
1015	be destroyed. May block for a long time.	1525	be destroyed. May block for a long time.
1016		1526
1017	=cut	1527	=cut
1018		1528
1019	sub quit_character {	1529	sub quit_character {
1020	my ($pl) = @_;	1530	my ($pl) = @_;
1021		1531
		1532	my $name = $pl->ob->name;
		1533
1022	$pl->{deny_save} = 1;	1534	$pl->{deny_save} = 1;
1023	$pl->password ("*"); # this should lock out the player until we nuked the dir	1535	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1024		1536
1025	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1537	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1026	$pl->deactivate;	1538	$pl->deactivate;
		1539	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1540	$pl->ob->check_score;
1027	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1541	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1028	$pl->ns->destroy if $pl->ns;	1542	$pl->ns->destroy if $pl->ns;
1029		1543
1030	my $path = playerdir $pl;	1544	my $path = playerdir $pl;
1031	my $temp = "$path~$cf::RUNTIME~deleting~";	1545	my $temp = "$path~$cf::RUNTIME~deleting~";
1032	aio_rename $path, $temp;	1546	aio_rename $path, $temp;
1033	delete $cf::PLAYER{$pl->ob->name};	1547	delete $cf::PLAYER{$pl->ob->name};
1034	$pl->destroy;	1548	$pl->destroy;
		1549
		1550	my $prefix = qr<^~\Q$name\E/>;
		1551
		1552	# nuke player maps
		1553	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1554
1035	IO::AIO::aio_rmtree $temp;	1555	IO::AIO::aio_rmtree $temp;
		1556	}
		1557
		1558	=item $pl->kick
		1559
		1560	Kicks a player out of the game. This destroys the connection.
		1561
		1562	=cut
		1563
		1564	sub kick {
		1565	my ($pl, $kicker) = @_;
		1566
		1567	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1568	$pl->killer ("kicked");
		1569	$pl->ns->destroy;
1036	}	1570	}
1037		1571
1038	=item cf::player::list_logins	1572	=item cf::player::list_logins
1039		1573
1040	Returns am arrayref of all valid playernames in the system, can take a	1574	Returns am arrayref of all valid playernames in the system, can take a
1041	while and may block, so not sync_job-capable, ever.	1575	while and may block, so not sync_job-capable, ever.
1042		1576
1043	=cut	1577	=cut
1044		1578
1045	sub list_logins {	1579	sub list_logins {
1046	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1580	my $dirs = aio_readdir $PLAYERDIR
1047	or return [];	1581	or return [];
1048		1582
1049	my @logins;	1583	my @logins;
1050		1584
1051	for my $login (@$dirs) {	1585	for my $login (@$dirs) {
		1586	my $path = path $login;
		1587
		1588	# a .pst is a dead give-away for a valid player
		1589	# if no pst file found, open and chekc for blocked users
		1590	if (aio_stat "$path.pst") {
1052	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1591	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1053	aio_read $fh, 0, 512, my $buf, 0 or next;	1592	aio_read $fh, 0, 512, my $buf, 0 or next;
1054	$buf !~ /^password -------------$/m or next; # official not-valid tag	1593	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1594	}
1055		1595
1056	utf8::decode $login;	1596	utf8::decode $login;
1057	push @logins, $login;	1597	push @logins, $login;
1058	}	1598	}
1059		1599
…		…
1067		1607
1068	=cut	1608	=cut
1069		1609
1070	sub maps($) {	1610	sub maps($) {
1071	my ($pl) = @_;	1611	my ($pl) = @_;
		1612
		1613	$pl = ref $pl ? $pl->ob->name : $pl;
1072		1614
1073	my $files = aio_readdir playerdir $pl	1615	my $files = aio_readdir playerdir $pl
1074	or return;	1616	or return;
1075		1617
1076	my @paths;	1618	my @paths;
…		…
1078	for (@$files) {	1620	for (@$files) {
1079	utf8::decode $_;	1621	utf8::decode $_;
1080	next if /\.(?:pl|pst)$/;	1622	next if /\.(?:pl|pst)$/;
1081	next unless /^$PATH_SEP/o;	1623	next unless /^$PATH_SEP/o;
1082		1624
1083	s/\.map$//;	1625	push @paths, cf::map::normalise "~$pl/$_";
1084	push @paths, "~" . $pl->ob->name . "/" . $_;
1085	}	1626	}
1086		1627
1087	\@paths	1628	\@paths
1088	}	1629	}
1089		1630
		1631	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1632
		1633	Expand deliantra pod fragments into protocol xml.
		1634
1090	=item $player->ext_reply ($msgid, $msgtype, %msg)	1635	=item $player->ext_reply ($msgid, @msg)
1091		1636
1092	Sends an ext reply to the player.	1637	Sends an ext reply to the player.
1093		1638
1094	=cut	1639	=cut
1095		1640
1096	sub ext_reply($$$%) {	1641	sub ext_reply($$@) {
1097	my ($self, $id, %msg) = @_;	1642	my ($self, $id, @msg) = @_;
1098		1643
1099	$msg{msgid} = $id;	1644	$self->ns->ext_reply ($id, @msg)
1100
1101	$self->send ("ext " . cf::to_json \%msg);
1102	}	1645	}
1103		1646
1104	package cf;	1647	=item $player->ext_msg ($type, @msg)
		1648
		1649	Sends an ext event to the client.
		1650
		1651	=cut
		1652
		1653	sub ext_msg($$@) {
		1654	my ($self, $type, @msg) = @_;
		1655
		1656	$self->ns->ext_msg ($type, @msg);
		1657	}
		1658
		1659	=head3 cf::region
		1660
		1661	=over 4
		1662
		1663	=cut
		1664
		1665	package cf::region;
		1666
		1667	=item cf::region::find_by_path $path
		1668
		1669	Tries to decuce the likely region for a map knowing only its path.
		1670
		1671	=cut
		1672
		1673	sub find_by_path($) {
		1674	my ($path) = @_;
		1675
		1676	my ($match, $specificity);
		1677
		1678	for my $region (list) {
		1679	if ($region->{match} && $path =~ $region->{match}) {
		1680	($match, $specificity) = ($region, $region->specificity)
		1681	if $region->specificity > $specificity;
		1682	}
		1683	}
		1684
		1685	$match
		1686	}
1105		1687
1106	=back	1688	=back
1107
1108		1689
1109	=head3 cf::map	1690	=head3 cf::map
1110		1691
1111	=over 4	1692	=over 4
1112		1693
…		…
1124	our $MAX_RESET = 3600;	1705	our $MAX_RESET = 3600;
1125	our $DEFAULT_RESET = 3000;	1706	our $DEFAULT_RESET = 3000;
1126		1707
1127	sub generate_random_map {	1708	sub generate_random_map {
1128	my ($self, $rmp) = @_;	1709	my ($self, $rmp) = @_;
		1710
		1711	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1712
1129	# mit "rum" bekleckern, nicht	1713	# mit "rum" bekleckern, nicht
1130	$self->_create_random_map (	1714	$self->_create_random_map (
1131	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1715	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1132	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1716	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1133	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1717	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1167	my ($self, $merge) = @_;	1751	my ($self, $merge) = @_;
1168		1752
1169	# we have to keep some variables in memory intact	1753	# we have to keep some variables in memory intact
1170	local $self->{path};	1754	local $self->{path};
1171	local $self->{load_path};	1755	local $self->{load_path};
1172	local $self->{deny_save};
1173	local $self->{deny_reset};
1174		1756
1175	$self->SUPER::thawer_merge ($merge);	1757	$self->SUPER::thawer_merge ($merge);
1176	}	1758	}
1177		1759
1178	sub normalise {	1760	sub normalise {
1179	my ($path, $base) = @_;	1761	my ($path, $base) = @_;
		1762
		1763	$path = "$path"; # make sure its a string
		1764
		1765	$path =~ s/\.map$//;
1180		1766
1181	# map plan:	1767	# map plan:
1182	#	1768	#
1183	# /! non-realised random map exit (special hack!)	1769	# /! non-realised random map exit (special hack!)
1184	# {... are special paths that are not being touched	1770	# {... are special paths that are not being touched
…		…
1221	$self->init; # pass $1 etc.	1807	$self->init; # pass $1 etc.
1222	return $self;	1808	return $self;
1223	}	1809	}
1224	}	1810	}
1225		1811
1226	Carp::carp "unable to resolve path '$path'.";	1812	Carp::cluck "unable to resolve path '$path' (base '$base').";
1227	()	1813	()
1228	}	1814	}
1229		1815
1230	sub init {	1816	sub init {
1231	my ($self) = @_;	1817	my ($self) = @_;
…		…
1246		1832
1247	# the original (read-only) location	1833	# the original (read-only) location
1248	sub load_path {	1834	sub load_path {
1249	my ($self) = @_;	1835	my ($self) = @_;
1250		1836
1251	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1837	"$MAPDIR/$self->{path}.map"
1252	}	1838	}
1253		1839
1254	# the temporary/swap location	1840	# the temporary/swap location
1255	sub save_path {	1841	sub save_path {
1256	my ($self) = @_;	1842	my ($self) = @_;
1257		1843
1258	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1844	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1259	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1845	"$TMPDIR/$path.map"
1260	}	1846	}
1261		1847
1262	# the unique path, undef == no special unique path	1848	# the unique path, undef == no special unique path
1263	sub uniq_path {	1849	sub uniq_path {
1264	my ($self) = @_;	1850	my ($self) = @_;
1265		1851
1266	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1852	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1267	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1853	"$UNIQUEDIR/$path"
1268	}	1854	}
1269		1855
1270	# and all this just because we cannot iterate over	1856	# and all this just because we cannot iterate over
1271	# all maps in C++...	1857	# all maps in C++...
1272	sub change_all_map_light {	1858	sub change_all_map_light {
…		…
1274		1860
1275	$_->change_map_light ($change)	1861	$_->change_map_light ($change)
1276	for grep $_->outdoor, values %cf::MAP;	1862	for grep $_->outdoor, values %cf::MAP;
1277	}	1863	}
1278		1864
		1865	sub decay_objects {
		1866	my ($self) = @_;
		1867
		1868	return if $self->{deny_reset};
		1869
		1870	$self->do_decay_objects;
		1871	}
		1872
1279	sub unlink_save {	1873	sub unlink_save {
1280	my ($self) = @_;	1874	my ($self) = @_;
1281		1875
1282	utf8::encode (my $save = $self->save_path);	1876	utf8::encode (my $save = $self->save_path);
1283	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1877	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1286		1880
1287	sub load_header_from($) {	1881	sub load_header_from($) {
1288	my ($self, $path) = @_;	1882	my ($self, $path) = @_;
1289		1883
1290	utf8::encode $path;	1884	utf8::encode $path;
1291	aio_open $path, O_RDONLY, 0	1885	my $f = new_from_file cf::object::thawer $path
1292	or return;	1886	or return;
1293		1887
1294	$self->_load_header ($path)	1888	$self->_load_header ($f)
1295	or return;	1889	or return;
		1890
		1891	local $MAP_LOADING{$self->{path}} = $self;
		1892	$f->resolve_delayed_derefs;
1296		1893
1297	$self->{load_path} = $path;	1894	$self->{load_path} = $path;
1298		1895
1299	1	1896	1
1300	}	1897	}
…		…
1339	$self->load_header_orig	1936	$self->load_header_orig
1340	or return;	1937	or return;
1341	$self->prepare_orig;	1938	$self->prepare_orig;
1342	}	1939	}
1343		1940
		1941	$self->{deny_reset} = 1
		1942	if $self->no_reset;
		1943
		1944	$self->default_region (cf::region::find_by_path $self->{path})
		1945	unless $self->default_region;
		1946
1344	1	1947	1
1345	}	1948	}
1346		1949
1347	sub find;	1950	sub find;
1348	sub find {	1951	sub find {
1349	my ($path, $origin) = @_;	1952	my ($path, $origin) = @_;
1350		1953
1351	$path = normalise $path, $origin && $origin->path;	1954	$path = normalise $path, $origin && $origin->path;
1352		1955
		1956	cf::lock_wait "map_data:$path";#d#remove
1353	cf::lock_wait "map_find:$path";	1957	cf::lock_wait "map_find:$path";
1354		1958
1355	$cf::MAP{$path} || do {	1959	$cf::MAP{$path} || do {
		1960	my $guard1 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1356	my $guard = cf::lock_acquire "map_find:$path";	1961	my $guard2 = cf::lock_acquire "map_find:$path";
		1962
1357	my $map = new_from_path cf::map $path	1963	my $map = new_from_path cf::map $path
1358	or return;	1964	or return;
1359		1965
1360	$map->{last_save} = $cf::RUNTIME;	1966	$map->{last_save} = $cf::RUNTIME;
1361		1967
1362	$map->load_header	1968	$map->load_header
1363	or return;	1969	or return;
1364		1970
1365	if ($map->should_reset) {	1971	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1366	# doing this can freeze the server in a sync job, obviously	1972	# doing this can freeze the server in a sync job, obviously
1367	#$cf::WAIT_FOR_TICK->wait;	1973	#$cf::WAIT_FOR_TICK->wait;
		1974	undef $guard2;
		1975	undef $guard1;
1368	$map->reset;	1976	$map->reset;
1369	undef $guard;
1370	$map = find $path	1977	return find $path;
1371	or return;
1372	}	1978	}
1373		1979
1374	$cf::MAP{$path} = $map	1980	$cf::MAP{$path} = $map
1375	}	1981	}
1376	}	1982	}
…		…
1379	sub post_load { }	1985	sub post_load { }
1380		1986
1381	sub load {	1987	sub load {
1382	my ($self) = @_;	1988	my ($self) = @_;
1383		1989
		1990	local $self->{deny_reset} = 1; # loading can take a long time
		1991
1384	my $path = $self->{path};	1992	my $path = $self->{path};
		1993
		1994	{
1385	my $guard = cf::lock_acquire "map_load:$path";	1995	my $guard = cf::lock_acquire "map_data:$path";
1386		1996
		1997	return unless $self->valid;
1387	return if $self->in_memory != cf::MAP_SWAPPED;	1998	return unless $self->in_memory == cf::MAP_SWAPPED;
1388		1999
1389	$self->in_memory (cf::MAP_LOADING);	2000	$self->in_memory (cf::MAP_LOADING);
1390		2001
1391	$self->alloc;	2002	$self->alloc;
1392		2003
1393	$self->pre_load;	2004	$self->pre_load;
		2005	cf::cede_to_tick;
1394		2006
1395	$self->_load_objects ($self->{load_path}, 1)	2007	my $f = new_from_file cf::object::thawer $self->{load_path};
		2008	$f->skip_block;
		2009	$self->_load_objects ($f)
1396	or return;	2010	or return;
1397		2011
1398	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2012	$self->post_load_original
1399	if delete $self->{load_original};	2013	if delete $self->{load_original};
1400		2014
1401	if (my $uniq = $self->uniq_path) {	2015	if (my $uniq = $self->uniq_path) {
1402	utf8::encode $uniq;	2016	utf8::encode $uniq;
1403	if (aio_open $uniq, O_RDONLY, 0) {	2017	unless (aio_stat $uniq) {
		2018	if (my $f = new_from_file cf::object::thawer $uniq) {
1404	$self->clear_unique_items;	2019	$self->clear_unique_items;
1405	$self->_load_objects ($uniq, 0);	2020	$self->_load_objects ($f);
		2021	$f->resolve_delayed_derefs;
		2022	}
1406	}	2023	}
1407	}	2024	}
1408		2025
1409	Coro::cede;	2026	$f->resolve_delayed_derefs;
1410		2027
		2028	cf::cede_to_tick;
1411	# now do the right thing for maps	2029	# now do the right thing for maps
1412	$self->link_multipart_objects;	2030	$self->link_multipart_objects;
1413
1414	unless ($self->{deny_activate}) {
1415	$self->decay_objects;
1416	$self->fix_auto_apply;
1417	$self->update_buttons;
1418	Coro::cede;
1419	$self->set_darkness_map;
1420	$self->difficulty ($self->estimate_difficulty)	2031	$self->difficulty ($self->estimate_difficulty)
1421	unless $self->difficulty;	2032	unless $self->difficulty;
1422	Coro::cede;	2033	cf::cede_to_tick;
		2034
		2035	unless ($self->{deny_activate}) {
		2036	$self->decay_objects;
		2037	$self->fix_auto_apply;
		2038	$self->update_buttons;
		2039	cf::cede_to_tick;
		2040	$self->set_darkness_map;
		2041	cf::cede_to_tick;
1423	$self->activate;	2042	$self->activate;
		2043	}
		2044
		2045	$self->{last_save} = $cf::RUNTIME;
		2046	$self->last_access ($cf::RUNTIME);
		2047
		2048	$self->in_memory (cf::MAP_ACTIVE);
1424	}	2049	}
1425		2050
1426	$self->post_load;	2051	$self->post_load;
1427
1428	$self->in_memory (cf::MAP_IN_MEMORY);
1429	}	2052	}
1430		2053
1431	sub customise_for {	2054	sub customise_for {
1432	my ($self, $ob) = @_;	2055	my ($self, $ob) = @_;
1433		2056
1434	return find "~" . $ob->name . "/" . $self->{path}	2057	return find "~" . $ob->name . "/" . $self->{path}
1435	if $self->per_player;	2058	if $self->per_player;
1436		2059
		2060	# return find "?party/" . $ob->name . "/" . $self->{path}
		2061	# if $self->per_party;
		2062
1437	$self	2063	$self
1438	}	2064	}
1439		2065
1440	# find and load all maps in the 3x3 area around a map	2066	# find and load all maps in the 3x3 area around a map
1441	sub load_diag {	2067	sub load_neighbours {
1442	my ($map) = @_;	2068	my ($map) = @_;
1443		2069
1444	my @diag; # diagonal neighbours	2070	my @neigh; # diagonal neighbours
1445		2071
1446	for (0 .. 3) {	2072	for (0 .. 3) {
1447	my $neigh = $map->tile_path ($_)	2073	my $neigh = $map->tile_path ($_)
1448	or next;	2074	or next;
1449	$neigh = find $neigh, $map	2075	$neigh = find $neigh, $map
1450	or next;	2076	or next;
1451	$neigh->load;	2077	$neigh->load;
1452		2078
		2079	push @neigh,
1453	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2080	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1454	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2081	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1455	}	2082	}
1456		2083
1457	for (@diag) {	2084	for (grep defined $_->[0], @neigh) {
		2085	my ($path, $origin) = @$_;
1458	my $neigh = find @$_	2086	my $neigh = find $path, $origin
1459	or next;	2087	or next;
1460	$neigh->load;	2088	$neigh->load;
1461	}	2089	}
1462	}	2090	}
1463		2091
…		…
1468	}	2096	}
1469		2097
1470	sub do_load_sync {	2098	sub do_load_sync {
1471	my ($map) = @_;	2099	my ($map) = @_;
1472		2100
		2101	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2102	if $Coro::current == $Coro::main;
		2103
1473	cf::sync_job { $map->load };	2104	cf::sync_job { $map->load };
1474	}	2105	}
1475		2106
1476	our %MAP_PREFETCH;	2107	our %MAP_PREFETCH;
1477	our $MAP_PREFETCHER = undef;	2108	our $MAP_PREFETCHER = undef;
1478		2109
1479	sub find_async {	2110	sub find_async {
1480	my ($path, $origin) = @_;	2111	my ($path, $origin, $load) = @_;
1481		2112
1482	$path = normalise $path, $origin && $origin->{path};	2113	$path = normalise $path, $origin && $origin->{path};
1483		2114
1484	if (my $map = $cf::MAP{$path}) {	2115	if (my $map = $cf::MAP{$path}) {
1485	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2116	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1486	}	2117	}
1487		2118
1488	undef $MAP_PREFETCH{$path};	2119	$MAP_PREFETCH{$path} |= $load;
		2120
1489	$MAP_PREFETCHER ||= cf::async {	2121	$MAP_PREFETCHER ||= cf::async {
		2122	$Coro::current->{desc} = "map prefetcher";
		2123
1490	while (%MAP_PREFETCH) {	2124	while (%MAP_PREFETCH) {
1491	for my $path (keys %MAP_PREFETCH) {	2125	while (my ($k, $v) = each %MAP_PREFETCH) {
1492	my $map = find $path	2126	if (my $map = find $k) {
1493	or next;
1494	$map->load;	2127	$map->load if $v;
		2128	}
1495		2129
1496	delete $MAP_PREFETCH{$path};	2130	delete $MAP_PREFETCH{$k};
1497	}	2131	}
1498	}	2132	}
1499	undef $MAP_PREFETCHER;	2133	undef $MAP_PREFETCHER;
1500	};	2134	};
1501	$MAP_PREFETCHER->prio (6);	2135	$MAP_PREFETCHER->prio (6);
…		…
1504	}	2138	}
1505		2139
1506	sub save {	2140	sub save {
1507	my ($self) = @_;	2141	my ($self) = @_;
1508		2142
1509	my $lock = cf::lock_acquire "map_data:" . $self->path;	2143	my $lock = cf::lock_acquire "map_data:$self->{path}";
1510		2144
1511	$self->{last_save} = $cf::RUNTIME;	2145	$self->{last_save} = $cf::RUNTIME;
1512		2146
1513	return unless $self->dirty;	2147	return unless $self->dirty;
1514		2148
…		…
1520	return if $self->{deny_save};	2154	return if $self->{deny_save};
1521		2155
1522	local $self->{last_access} = $self->last_access;#d#	2156	local $self->{last_access} = $self->last_access;#d#
1523		2157
1524	cf::async {	2158	cf::async {
		2159	$Coro::current->{desc} = "map player save";
1525	$_->contr->save for $self->players;	2160	$_->contr->save for $self->players;
1526	};	2161	};
		2162
		2163	cf::get_slot 0.02;
1527		2164
1528	if ($uniq) {	2165	if ($uniq) {
1529	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2166	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1530	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2167	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1531	} else {	2168	} else {
…		…
1537	my ($self) = @_;	2174	my ($self) = @_;
1538		2175
1539	# save first because save cedes	2176	# save first because save cedes
1540	$self->save;	2177	$self->save;
1541		2178
1542	my $lock = cf::lock_acquire "map_data:" . $self->path;	2179	my $lock = cf::lock_acquire "map_data:$self->{path}";
1543		2180
1544	return if $self->players;	2181	return if $self->players;
1545	return if $self->in_memory != cf::MAP_IN_MEMORY;	2182	return if $self->in_memory != cf::MAP_ACTIVE;
1546	return if $self->{deny_save};	2183	return if $self->{deny_save};
1547		2184
		2185	$self->in_memory (cf::MAP_SWAPPED);
		2186
		2187	$self->deactivate;
		2188	$_->clear_links_to ($self) for values %cf::MAP;
1548	$self->clear;	2189	$self->clear;
1549	$self->in_memory (cf::MAP_SWAPPED);
1550	}	2190	}
1551		2191
1552	sub reset_at {	2192	sub reset_at {
1553	my ($self) = @_;	2193	my ($self) = @_;
1554		2194
1555	# TODO: safety, remove and allow resettable per-player maps	2195	# TODO: safety, remove and allow resettable per-player maps
1556	return 1e99 if $self->isa ("ext::map_per_player");#d#
1557	return 1e99 if $self->{deny_reset};	2196	return 1e99 if $self->{deny_reset};
1558		2197
1559	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2198	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1560	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2199	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1561		2200
…		…
1572	my ($self) = @_;	2211	my ($self) = @_;
1573		2212
1574	my $lock = cf::lock_acquire "map_data:$self->{path}";	2213	my $lock = cf::lock_acquire "map_data:$self->{path}";
1575		2214
1576	return if $self->players;	2215	return if $self->players;
1577	return if $self->isa ("ext::map_per_player");#d#
1578		2216
1579	warn "resetting map ", $self->path;#d#	2217	warn "resetting map ", $self->path;
		2218
		2219	$self->in_memory (cf::MAP_SWAPPED);
		2220
		2221	# need to save uniques path
		2222	unless ($self->{deny_save}) {
		2223	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2224
		2225	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2226	if $uniq;
		2227	}
1580		2228
1581	delete $cf::MAP{$self->path};	2229	delete $cf::MAP{$self->path};
1582		2230
1583	$self->in_memory (cf::MAP_SWAPPED);	2231	$self->deactivate;
		2232	$_->clear_links_to ($self) for values %cf::MAP;
1584	$self->clear;	2233	$self->clear;
1585
1586	$_->clear_links_to ($self) for values %cf::MAP;
1587		2234
1588	$self->unlink_save;	2235	$self->unlink_save;
1589	$self->destroy;	2236	$self->destroy;
1590	}	2237	}
1591		2238
1592	my $nuke_counter = "aaaa";	2239	my $nuke_counter = "aaaa";
1593		2240
1594	sub nuke {	2241	sub nuke {
1595	my ($self) = @_;	2242	my ($self) = @_;
1596		2243
		2244	{
		2245	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2246
1597	delete $cf::MAP{$self->path};	2247	delete $cf::MAP{$self->path};
1598		2248
1599	$self->unlink_save;	2249	$self->unlink_save;
1600		2250
1601	bless $self, "cf::map";	2251	bless $self, "cf::map";
1602	delete $self->{deny_reset};	2252	delete $self->{deny_reset};
1603	$self->{deny_save} = 1;	2253	$self->{deny_save} = 1;
1604	$self->reset_timeout (1);	2254	$self->reset_timeout (1);
1605	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2255	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1606		2256
1607	$cf::MAP{$self->path} = $self;	2257	$cf::MAP{$self->path} = $self;
		2258	}
1608		2259
1609	$self->reset; # polite request, might not happen	2260	$self->reset; # polite request, might not happen
		2261	}
		2262
		2263	=item $maps = cf::map::tmp_maps
		2264
		2265	Returns an arrayref with all map paths of currently instantiated and saved
		2266	maps. May block.
		2267
		2268	=cut
		2269
		2270	sub tmp_maps() {
		2271	[
		2272	map {
		2273	utf8::decode $_;
		2274	/\.map$/
		2275	? normalise $_
		2276	: ()
		2277	} @{ aio_readdir $TMPDIR or [] }
		2278	]
		2279	}
		2280
		2281	=item $maps = cf::map::random_maps
		2282
		2283	Returns an arrayref with all map paths of currently instantiated and saved
		2284	random maps. May block.
		2285
		2286	=cut
		2287
		2288	sub random_maps() {
		2289	[
		2290	map {
		2291	utf8::decode $_;
		2292	/\.map$/
		2293	? normalise "?random/$_"
		2294	: ()
		2295	} @{ aio_readdir $RANDOMDIR or [] }
		2296	]
1610	}	2297	}
1611		2298
1612	=item cf::map::unique_maps	2299	=item cf::map::unique_maps
1613		2300
1614	Returns an arrayref of paths of all shared maps that have	2301	Returns an arrayref of paths of all shared maps that have
1615	instantiated unique items. May block.	2302	instantiated unique items. May block.
1616		2303
1617	=cut	2304	=cut
1618		2305
1619	sub unique_maps() {	2306	sub unique_maps() {
1620	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2307	[
1621	or return;	2308	map {
1622
1623	my @paths;
1624
1625	for (@$files) {
1626	utf8::decode $_;	2309	utf8::decode $_;
1627	next if /\.pst$/;	2310	s/\.map$//; # TODO future compatibility hack
1628	next unless /^$PATH_SEP/o;	2311	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1629		2312	? ()
1630	s/\.map$//;	2313	: normalise $_
1631	push @paths, $_;	2314	} @{ aio_readdir $UNIQUEDIR or [] }
1632	}	2315	]
1633
1634	\@paths
1635	}	2316	}
1636
1637	package cf;
1638		2317
1639	=back	2318	=back
1640		2319
1641	=head3 cf::object	2320	=head3 cf::object
1642		2321
…		…
1646		2325
1647	=over 4	2326	=over 4
1648		2327
1649	=item $ob->inv_recursive	2328	=item $ob->inv_recursive
1650		2329
1651	Returns the inventory of the object _and_ their inventories, recursively.	2330	Returns the inventory of the object I<and> their inventories, recursively,
		2331	but I<not> the object itself.
1652		2332
1653	=cut	2333	=cut
1654		2334
1655	sub inv_recursive_;	2335	sub inv_recursive_;
1656	sub inv_recursive_ {	2336	sub inv_recursive_ {
…		…
1659		2339
1660	sub inv_recursive {	2340	sub inv_recursive {
1661	inv_recursive_ inv $_[0]	2341	inv_recursive_ inv $_[0]
1662	}	2342	}
1663		2343
		2344	=item $ref = $ob->ref
		2345
		2346	Creates and returns a persistent reference to an object that can be stored as a string.
		2347
		2348	=item $ob = cf::object::deref ($refstring)
		2349
		2350	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2351	even if the object actually exists. May block.
		2352
		2353	=cut
		2354
		2355	sub deref {
		2356	my ($ref) = @_;
		2357
		2358	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2359	my ($uuid, $name) = ($1, $2);
		2360	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2361	or return;
		2362	$pl->ob->uuid eq $uuid
		2363	or return;
		2364
		2365	$pl->ob
		2366	} else {
		2367	warn "$ref: cannot resolve object reference\n";
		2368	undef
		2369	}
		2370	}
		2371
1664	package cf;	2372	package cf;
1665		2373
1666	=back	2374	=back
1667		2375
1668	=head3 cf::object::player	2376	=head3 cf::object::player
…		…
1674	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2382	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1675	can be C<undef>. Does the right thing when the player is currently in a	2383	can be C<undef>. Does the right thing when the player is currently in a
1676	dialogue with the given NPC character.	2384	dialogue with the given NPC character.
1677		2385
1678	=cut	2386	=cut
		2387
		2388	our $SAY_CHANNEL = {
		2389	id => "say",
		2390	title => "Map",
		2391	reply => "say ",
		2392	tooltip => "Things said to and replied from npcs near you and other players on the same map only.",
		2393	};
		2394
		2395	our $CHAT_CHANNEL = {
		2396	id => "chat",
		2397	title => "Chat",
		2398	reply => "chat ",
		2399	tooltip => "Player chat and shouts, global to the server.",
		2400	};
1679		2401
1680	# rough implementation of a future "reply" method that works	2402	# rough implementation of a future "reply" method that works
1681	# with dialog boxes.	2403	# with dialog boxes.
1682	#TODO: the first argument must go, split into a $npc->reply_to ( method	2404	#TODO: the first argument must go, split into a $npc->reply_to ( method
1683	sub cf::object::player::reply($$$;$) {	2405	sub cf::object::player::reply($$$;$) {
…		…
1685		2407
1686	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2408	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1687		2409
1688	if ($self->{record_replies}) {	2410	if ($self->{record_replies}) {
1689	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2411	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2412
1690	} else {	2413	} else {
		2414	my $pl = $self->contr;
		2415
		2416	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2417	my $dialog = $pl->{npc_dialog};
		2418	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2419
		2420	} else {
1691	$msg = $npc->name . " says: $msg" if $npc;	2421	$msg = $npc->name . " says: $msg" if $npc;
1692	$self->message ($msg, $flags);	2422	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2423	}
1693	}	2424	}
		2425	}
		2426
		2427	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2428
		2429	=cut
		2430
		2431	sub cf::object::send_msg {
		2432	my $pl = shift->contr
		2433	or return;
		2434	$pl->send_msg (@_);
1694	}	2435	}
1695		2436
1696	=item $player_object->may ("access")	2437	=item $player_object->may ("access")
1697		2438
1698	Returns wether the given player is authorized to access resource "access"	2439	Returns wether the given player is authorized to access resource "access"
…		…
1711		2452
1712	=item $player_object->enter_link	2453	=item $player_object->enter_link
1713		2454
1714	Freezes the player and moves him/her to a special map (C<{link}>).	2455	Freezes the player and moves him/her to a special map (C<{link}>).
1715		2456
1716	The player should be reasonably safe there for short amounts of time. You	2457	The player should be reasonably safe there for short amounts of time (e.g.
1717	I<MUST> call C<leave_link> as soon as possible, though.	2458	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2459	though, as the palyer cannot control the character while it is on the link
		2460	map.
1718		2461
1719	Will never block.	2462	Will never block.
1720		2463
1721	=item $player_object->leave_link ($map, $x, $y)	2464	=item $player_object->leave_link ($map, $x, $y)
1722		2465
…		…
1730	=cut	2473	=cut
1731		2474
1732	sub link_map {	2475	sub link_map {
1733	unless ($LINK_MAP) {	2476	unless ($LINK_MAP) {
1734	$LINK_MAP = cf::map::find "{link}"	2477	$LINK_MAP = cf::map::find "{link}"
1735	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2478	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1736	$LINK_MAP->load;	2479	$LINK_MAP->load;
1737	}	2480	}
1738		2481
1739	$LINK_MAP	2482	$LINK_MAP
1740	}	2483	}
…		…
1745	$self->deactivate_recursive;	2488	$self->deactivate_recursive;
1746		2489
1747	return if UNIVERSAL::isa $self->map, "ext::map_link";	2490	return if UNIVERSAL::isa $self->map, "ext::map_link";
1748		2491
1749	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2492	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1750	if $self->map;	2493	if $self->map && $self->map->{path} ne "{link}";
1751		2494
1752	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2495	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1753	}	2496	}
1754		2497
1755	sub cf::object::player::leave_link {	2498	sub cf::object::player::leave_link {
1756	my ($self, $map, $x, $y) = @_;	2499	my ($self, $map, $x, $y) = @_;
		2500
		2501	return unless $self->contr->active;
1757		2502
1758	my $link_pos = delete $self->{_link_pos};	2503	my $link_pos = delete $self->{_link_pos};
1759		2504
1760	unless ($map) {	2505	unless ($map) {
1761	# restore original map position	2506	# restore original map position
…		…
1775	# use -1 or undef as default coordinates, not 0, 0	2520	# use -1 or undef as default coordinates, not 0, 0
1776	($x, $y) = ($map->enter_x, $map->enter_y)	2521	($x, $y) = ($map->enter_x, $map->enter_y)
1777	if $x <=0 && $y <= 0;	2522	if $x <=0 && $y <= 0;
1778		2523
1779	$map->load;	2524	$map->load;
1780	$map->load_diag;	2525	$map->load_neighbours;
1781		2526
1782	return unless $self->contr->active;	2527	return unless $self->contr->active;
		2528	$self->flag (cf::FLAG_DEBUG, 0);#d# temp
1783	$self->activate_recursive;	2529	$self->activate_recursive;
		2530
		2531	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1784	$self->enter_map ($map, $x, $y);	2532	$self->enter_map ($map, $x, $y);
1785	}	2533	}
1786		2534
1787	cf::player->attach (	2535	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1788	on_logout => sub {
1789	my ($pl) = @_;
1790		2536
1791	# abort map switching before logout	2537	Moves the player to the given map-path and coordinates by first freezing
1792	if ($pl->ob->{_link_pos}) {	2538	her, loading and preparing them map, calling the provided $check callback
1793	cf::sync_job {	2539	that has to return the map if sucecssful, and then unfreezes the player on
1794	$pl->ob->leave_link	2540	the new (success) or old (failed) map position. In either case, $done will
1795	};	2541	be called at the end of this process.
1796	}
1797	},
1798	on_login => sub {
1799	my ($pl) = @_;
1800		2542
1801	# try to abort aborted map switching on player login :)	2543	Note that $check will be called with a potentially non-loaded map, so if
1802	# should happen only on crashes	2544	it needs a loaded map it has to call C<< ->load >>.
1803	if ($pl->ob->{_link_pos}) {
1804	$pl->ob->enter_link;
1805	(async {
1806	# we need this sleep as the login has a concurrent enter_exit running
1807	# and this sleep increases chances of the player not ending up in scorn
1808	$pl->ob->reply (undef,
1809	"There was an internal problem at your last logout, "
1810	. "the server will try to bring you to your intended destination in a second.",
1811	cf::NDI_RED);
1812	Coro::Timer::sleep 1;
1813	$pl->ob->leave_link;
1814	})->prio (2);
1815	}
1816	},
1817	);
1818		2545
1819	=item $player_object->goto ($path, $x, $y)
1820
1821	=cut	2546	=cut
		2547
		2548	our $GOTOGEN;
1822		2549
1823	sub cf::object::player::goto {	2550	sub cf::object::player::goto {
1824	my ($self, $path, $x, $y) = @_;	2551	my ($self, $path, $x, $y, $check, $done) = @_;
		2552
		2553	# do generation counting so two concurrent goto's will be executed in-order
		2554	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1825		2555
1826	$self->enter_link;	2556	$self->enter_link;
1827		2557
1828	(async {	2558	(async {
1829	my $map = cf::map::find $path;	2559	$Coro::current->{desc} = "player::goto $path $x $y";
		2560
		2561	# *tag paths override both path and x|y
		2562	if ($path =~ /^\*(.*)$/) {
		2563	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2564	my $ob = $obs[rand @obs];
		2565
		2566	# see if we actually can go there
		2567	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2568	$ob = $obs[rand @obs];
		2569	} else {
		2570	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2571	}
		2572	# else put us there anyways for now #d#
		2573
		2574	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2575	} else {
		2576	($path, $x, $y) = (undef, undef, undef);
		2577	}
		2578	}
		2579
		2580	my $map = eval {
		2581	my $map = defined $path ? cf::map::find $path : undef;
		2582
		2583	if ($map) {
1830	$map = $map->customise_for ($self) if $map;	2584	$map = $map->customise_for ($self);
1831		2585	$map = $check->($map) if $check && $map;
1832	# warn "entering ", $map->path, " at ($x, $y)\n"	2586	} else {
1833	# if $map;
1834
1835	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2587	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2588	}
1836		2589
		2590	$map
		2591	};
		2592
		2593	if ($@) {
		2594	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2595	LOG llevError | logBacktrace, Carp::longmess $@;
		2596	}
		2597
		2598	if ($gen == $self->{_goto_generation}) {
		2599	delete $self->{_goto_generation};
1837	$self->leave_link ($map, $x, $y);	2600	$self->leave_link ($map, $x, $y);
		2601	}
		2602
		2603	$done->() if $done;
1838	})->prio (1);	2604	})->prio (1);
1839	}	2605	}
1840		2606
1841	=item $player_object->enter_exit ($exit_object)	2607	=item $player_object->enter_exit ($exit_object)
1842		2608
…		…
1862	}	2628	}
1863		2629
1864	sub prepare_random_map {	2630	sub prepare_random_map {
1865	my ($exit) = @_;	2631	my ($exit) = @_;
1866		2632
1867	my $guard = cf::lock_acquire "exit_prepare:$exit";
1868
1869	# all this does is basically replace the /! path by	2633	# all this does is basically replace the /! path by
1870	# a new random map path (?random/...) with a seed	2634	# a new random map path (?random/...) with a seed
1871	# that depends on the exit object	2635	# that depends on the exit object
1872		2636
1873	my $rmp = parse_random_map_params $exit->msg;	2637	my $rmp = parse_random_map_params $exit->msg;
1874		2638
1875	if ($exit->map) {	2639	if ($exit->map) {
1876	$rmp->{region} = $exit->map->region_name;	2640	$rmp->{region} = $exit->region->name;
1877	$rmp->{origin_map} = $exit->map->path;	2641	$rmp->{origin_map} = $exit->map->path;
1878	$rmp->{origin_x} = $exit->x;	2642	$rmp->{origin_x} = $exit->x;
1879	$rmp->{origin_y} = $exit->y;	2643	$rmp->{origin_y} = $exit->y;
		2644
		2645	$exit->map->touch;
1880	}	2646	}
1881		2647
1882	$rmp->{random_seed} ||= $exit->random_seed;	2648	$rmp->{random_seed} ||= $exit->random_seed;
1883		2649
1884	my $data = cf::to_json $rmp;	2650	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1885	my $md5 = Digest::MD5::md5_hex $data;	2651	my $md5 = Digest::MD5::md5_hex $data;
1886	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2652	my $meta = "$RANDOMDIR/$md5.meta";
1887		2653
1888	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2654	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1889	aio_write $fh, 0, (length $data), $data, 0;	2655	aio_write $fh, 0, (length $data), $data, 0;
1890	undef $fh;	2656	undef $fh;
1891	aio_rename "$meta~", $meta;	2657	aio_rename "$meta~", $meta;
1892		2658
		2659	my $slaying = "?random/$md5";
		2660
		2661	if ($exit->valid) {
1893	$exit->slaying ("?random/$md5");	2662	$exit->slaying ("?random/$md5");
1894	$exit->msg (undef);	2663	$exit->msg (undef);
		2664	}
1895	}	2665	}
1896	}	2666	}
1897		2667
1898	sub cf::object::player::enter_exit {	2668	sub cf::object::player::enter_exit {
1899	my ($self, $exit) = @_;	2669	my ($self, $exit) = @_;
…		…
1901	return unless $self->type == cf::PLAYER;	2671	return unless $self->type == cf::PLAYER;
1902		2672
1903	$self->enter_link;	2673	$self->enter_link;
1904		2674
1905	(async {	2675	(async {
1906	$self->deactivate_recursive; # just to be sure	2676	$Coro::current->{desc} = "enter_exit";
		2677
1907	unless (eval {	2678	unless (eval {
		2679	$self->deactivate_recursive; # just to be sure
		2680
		2681	# random map handling
		2682	{
		2683	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2684
1908	prepare_random_map $exit	2685	prepare_random_map $exit
1909	if $exit->slaying eq "/!";	2686	if $exit->slaying eq "/!";
		2687	}
1910		2688
1911	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;	2689	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1912	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2690	my $x = $exit->stats->hp;
		2691	my $y = $exit->stats->sp;
1913		2692
		2693	$self->goto ($map, $x, $y);
		2694
		2695	# if exit is damned, update players death & WoR home-position
		2696	$self->contr->savebed ($map, $x, $y)
		2697	if $exit->flag (cf::FLAG_DAMNED);
		2698
1914	1;	2699	1
1915	}) {	2700	}) {
1916	$self->message ("Something went wrong deep within the crossfire server. "	2701	$self->message ("Something went wrong deep within the deliantra server. "
1917	. "I'll try to bring you back to the map you were before. "	2702	. "I'll try to bring you back to the map you were before. "
1918	. "Please report this to the dungeon master!",	2703	. "Please report this to the dungeon master!",
1919	cf::NDI_UNIQUE | cf::NDI_RED);	2704	cf::NDI_UNIQUE | cf::NDI_RED);
1920		2705
1921	warn "ERROR in enter_exit: $@";	2706	warn "ERROR in enter_exit: $@";
1922	$self->leave_link;	2707	$self->leave_link;
1923	}	2708	}
1924	})->prio (1);	2709	})->prio (1);
…		…
1937		2722
1938	sub cf::client::send_drawinfo {	2723	sub cf::client::send_drawinfo {
1939	my ($self, $text, $flags) = @_;	2724	my ($self, $text, $flags) = @_;
1940		2725
1941	utf8::encode $text;	2726	utf8::encode $text;
1942	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2727	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1943	}	2728	}
1944		2729
		2730	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2731
		2732	Send a drawinfo or msg packet to the client, formatting the msg for the
		2733	client if neccessary. C<$type> should be a string identifying the type of
		2734	the message, with C<log> being the default. If C<$color> is negative, suppress
		2735	the message unless the client supports the msg packet.
		2736
		2737	=cut
		2738
		2739	# non-persistent channels (usually the info channel)
		2740	our %CHANNEL = (
		2741	"c/identify" => {
		2742	id => "infobox",
		2743	title => "Identify",
		2744	reply => undef,
		2745	tooltip => "Items recently identified",
		2746	},
		2747	"c/examine" => {
		2748	id => "infobox",
		2749	title => "Examine",
		2750	reply => undef,
		2751	tooltip => "Signs and other items you examined",
		2752	},
		2753	"c/book" => {
		2754	id => "infobox",
		2755	title => "Book",
		2756	reply => undef,
		2757	tooltip => "The contents of a note or book",
		2758	},
		2759	"c/lookat" => {
		2760	id => "infobox",
		2761	title => "Look",
		2762	reply => undef,
		2763	tooltip => "What you saw there",
		2764	},
		2765	"c/who" => {
		2766	id => "infobox",
		2767	title => "Players",
		2768	reply => undef,
		2769	tooltip => "Shows players who are currently online",
		2770	},
		2771	"c/body" => {
		2772	id => "infobox",
		2773	title => "Body Parts",
		2774	reply => undef,
		2775	tooltip => "Shows which body parts you posess and are available",
		2776	},
		2777	"c/skills" => {
		2778	id => "infobox",
		2779	title => "Skills",
		2780	reply => undef,
		2781	tooltip => "Shows your experience per skill and item power",
		2782	},
		2783	"c/uptime" => {
		2784	id => "infobox",
		2785	title => "Uptime",
		2786	reply => undef,
		2787	tooltip => "How long the server has been running since last restart",
		2788	},
		2789	"c/mapinfo" => {
		2790	id => "infobox",
		2791	title => "Map Info",
		2792	reply => undef,
		2793	tooltip => "Information related to the maps",
		2794	},
		2795	"c/party" => {
		2796	id => "party",
		2797	title => "Party",
		2798	reply => "gsay ",
		2799	tooltip => "Messages and chat related to your party",
		2800	},
		2801	);
		2802
		2803	sub cf::client::send_msg {
		2804	my ($self, $channel, $msg, $color, @extra) = @_;
		2805
		2806	$msg = $self->pl->expand_cfpod ($msg)
		2807	unless $color & cf::NDI_VERBATIM;
		2808
		2809	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2810
		2811	# check predefined channels, for the benefit of C
		2812	if ($CHANNEL{$channel}) {
		2813	$channel = $CHANNEL{$channel};
		2814
		2815	$self->ext_msg (channel_info => $channel)
		2816	if $self->can_msg;
		2817
		2818	$channel = $channel->{id};
		2819
		2820	} elsif (ref $channel) {
		2821	# send meta info to client, if not yet sent
		2822	unless (exists $self->{channel}{$channel->{id}}) {
		2823	$self->{channel}{$channel->{id}} = $channel;
		2824	$self->ext_msg (channel_info => $channel)
		2825	if $self->can_msg;
		2826	}
		2827
		2828	$channel = $channel->{id};
		2829	}
		2830
		2831	return unless @extra || length $msg;
		2832
		2833	if ($self->can_msg) {
		2834	# default colour, mask it out
		2835	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2836	if $color & cf::NDI_DEF;
		2837
		2838	my $pkt = "msg "
		2839	. $self->{json_coder}->encode (
		2840	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2841	);
		2842
		2843	# try lzf for large packets
		2844	$pkt = "lzf " . Compress::LZF::compress $pkt
		2845	if 1024 <= length $pkt and $self->{can_lzf};
		2846
		2847	# split very large packets
		2848	if (8192 < length $pkt and $self->{can_lzf}) {
		2849	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2850	$pkt = "frag";
		2851	}
		2852
		2853	$self->send_packet ($pkt);
		2854	} else {
		2855	if ($color >= 0) {
		2856	# replace some tags by gcfclient-compatible ones
		2857	for ($msg) {
		2858	1 while
		2859	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2860	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2861	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2862	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2863	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2864	}
		2865
		2866	$color &= cf::NDI_COLOR_MASK;
		2867
		2868	utf8::encode $msg;
		2869
		2870	if (0 && $msg =~ /\[/) {
		2871	# COMMAND/INFO
		2872	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2873	} else {
		2874	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2875	$self->send_packet ("drawinfo $color $msg")
		2876	}
		2877	}
		2878	}
		2879	}
		2880
		2881	=item $client->ext_msg ($type, @msg)
		2882
		2883	Sends an ext event to the client.
		2884
		2885	=cut
		2886
		2887	sub cf::client::ext_msg($$@) {
		2888	my ($self, $type, @msg) = @_;
		2889
		2890	if ($self->extcmd == 2) {
		2891	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2892	} elsif ($self->extcmd == 1) { # TODO: remove
		2893	push @msg, msgtype => "event_$type";
		2894	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2895	}
		2896	}
		2897
		2898	=item $client->ext_reply ($msgid, @msg)
		2899
		2900	Sends an ext reply to the client.
		2901
		2902	=cut
		2903
		2904	sub cf::client::ext_reply($$@) {
		2905	my ($self, $id, @msg) = @_;
		2906
		2907	if ($self->extcmd == 2) {
		2908	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2909	} elsif ($self->extcmd == 1) {
		2910	#TODO: version 1, remove
		2911	unshift @msg, msgtype => "reply", msgid => $id;
		2912	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2913	}
		2914	}
1945		2915
1946	=item $success = $client->query ($flags, "text", \&cb)	2916	=item $success = $client->query ($flags, "text", \&cb)
1947		2917
1948	Queues a query to the client, calling the given callback with	2918	Queues a query to the client, calling the given callback with
1949	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2919	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1950	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2920	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1951		2921
1952	Queries can fail, so check the return code. Or don't, as queries will become	2922	Queries can fail, so check the return code. Or don't, as queries will
1953	reliable at some point in the future.	2923	become reliable at some point in the future.
1954		2924
1955	=cut	2925	=cut
1956		2926
1957	sub cf::client::query {	2927	sub cf::client::query {
1958	my ($self, $flags, $text, $cb) = @_;	2928	my ($self, $flags, $text, $cb) = @_;
…		…
1966	utf8::encode $text;	2936	utf8::encode $text;
1967	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2937	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1968		2938
1969	$self->send_packet ($self->{query_queue}[0][0])	2939	$self->send_packet ($self->{query_queue}[0][0])
1970	if @{ $self->{query_queue} } == 1;	2940	if @{ $self->{query_queue} } == 1;
		2941
		2942	1
1971	}	2943	}
1972		2944
1973	cf::client->attach (	2945	cf::client->attach (
		2946	on_connect => sub {
		2947	my ($ns) = @_;
		2948
		2949	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2950	},
1974	on_reply => sub {	2951	on_reply => sub {
1975	my ($ns, $msg) = @_;	2952	my ($ns, $msg) = @_;
1976		2953
1977	# this weird shuffling is so that direct followup queries	2954	# this weird shuffling is so that direct followup queries
1978	# get handled first	2955	# get handled first
1979	my $queue = delete $ns->{query_queue}	2956	my $queue = delete $ns->{query_queue}
1980	or return; # be conservative, not sure how that can happen, but we saw a crash here	2957	or return; # be conservative, not sure how that can happen, but we saw a crash here
1981		2958
1982	(shift @$queue)->[1]->($msg);	2959	(shift @$queue)->[1]->($msg);
		2960	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1983		2961
1984	push @{ $ns->{query_queue} }, @$queue;	2962	push @{ $ns->{query_queue} }, @$queue;
1985		2963
1986	if (@{ $ns->{query_queue} } == @$queue) {	2964	if (@{ $ns->{query_queue} } == @$queue) {
1987	if (@$queue) {	2965	if (@$queue) {
…		…
1989	} else {	2967	} else {
1990	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2968	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1991	}	2969	}
1992	}	2970	}
1993	},	2971	},
		2972	on_exticmd => sub {
		2973	my ($ns, $buf) = @_;
		2974
		2975	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2976
		2977	if (ref $msg) {
		2978	my ($type, $reply, @payload) =
		2979	"ARRAY" eq ref $msg
		2980	? @$msg
		2981	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2982
		2983	my @reply;
		2984
		2985	if (my $cb = $EXTICMD{$type}) {
		2986	@reply = $cb->($ns, @payload);
		2987	}
		2988
		2989	$ns->ext_reply ($reply, @reply)
		2990	if $reply;
		2991
		2992	} else {
		2993	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2994	}
		2995
		2996	cf::override;
		2997	},
1994	);	2998	);
1995		2999
1996	=item $client->async (\&cb)	3000	=item $client->async (\&cb)
1997		3001
1998	Create a new coroutine, running the specified callback. The coroutine will	3002	Create a new coroutine, running the specified callback. The coroutine will
…		…
2039	our $safe = new Safe "safe";	3043	our $safe = new Safe "safe";
2040	our $safe_hole = new Safe::Hole;	3044	our $safe_hole = new Safe::Hole;
2041		3045
2042	$SIG{FPE} = 'IGNORE';	3046	$SIG{FPE} = 'IGNORE';
2043		3047
2044	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3048	$safe->permit_only (Opcode::opset qw(
		3049	:base_core :base_mem :base_orig :base_math
		3050	grepstart grepwhile mapstart mapwhile
		3051	sort time
		3052	));
2045		3053
2046	# here we export the classes and methods available to script code	3054	# here we export the classes and methods available to script code
2047		3055
2048	=pod	3056	=pod
2049		3057
2050	The following fucntions and emthods are available within a safe environment:	3058	The following functions and methods are available within a safe environment:
2051		3059
2052	cf::object contr pay_amount pay_player map	3060	cf::object
		3061	contr pay_amount pay_player map x y force_find force_add destroy
		3062	insert remove name archname title slaying race decrease split
		3063
2053	cf::object::player player	3064	cf::object::player
2054	cf::player peaceful	3065	player
2055	cf::map trigger	3066
		3067	cf::player
		3068	peaceful
		3069
		3070	cf::map
		3071	trigger
2056		3072
2057	=cut	3073	=cut
2058		3074
2059	for (	3075	for (
2060	["cf::object" => qw(contr pay_amount pay_player map)],	3076	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3077	insert remove inv nrof name archname title slaying race
		3078	decrease split destroy change_exp)],
2061	["cf::object::player" => qw(player)],	3079	["cf::object::player" => qw(player)],
2062	["cf::player" => qw(peaceful)],	3080	["cf::player" => qw(peaceful)],
2063	["cf::map" => qw(trigger)],	3081	["cf::map" => qw(trigger)],
2064	) {	3082	) {
2065	no strict 'refs';	3083	no strict 'refs';
…		…
2136	=back	3154	=back
2137		3155
2138	=cut	3156	=cut
2139		3157
2140	#############################################################################	3158	#############################################################################
		3159	# the server's init and main functions
2141		3160
2142	=head2 EXTENSION DATABASE SUPPORT	3161	sub load_facedata($) {
		3162	my ($path) = @_;
2143		3163
2144	Crossfire maintains a very simple database for extension use. It can	3164	# HACK to clear player env face cache, we need some signal framework
2145	currently store anything that can be serialised using Storable, which	3165	# for this (global event?)
2146	excludes objects.	3166	%ext::player_env::MUSIC_FACE_CACHE = ();
2147		3167
2148	The parameter C<$family> should best start with the name of the extension	3168	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2149	using it, it should be unique.
2150		3169
2151	=over 4	3170	warn "loading facedata from $path\n";
2152		3171
2153	=item $hashref = cf::db_get $family	3172	my $facedata;
		3173	0 < aio_load $path, $facedata
		3174	or die "$path: $!";
2154		3175
2155	Return a hashref for use by the extension C<$family>, which can be	3176	$facedata = Coro::Storable::thaw $facedata;
2156	modified. After modifications, you have to call C<cf::db_dirty> or
2157	C<cf::db_sync>.
2158		3177
2159	=item $value = cf::db_get $family => $key	3178	$facedata->{version} == 2
		3179	or cf::cleanup "$path: version mismatch, cannot proceed.";
2160		3180
2161	Returns a single value from the database	3181	# patch in the exptable
2162		3182	$facedata->{resource}{"res/exp_table"} = {
2163	=item cf::db_put $family => $hashref	3183	type => FT_RSRC,
2164		3184	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2165	Stores the given family hashref into the database. Updates are delayed, if
2166	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2167
2168	=item cf::db_put $family => $key => $value
2169
2170	Stores the given C<$value> in the family hash. Updates are delayed, if you
2171	want the data to be synced to disk immediately, use C<cf::db_sync>.
2172
2173	=item cf::db_dirty
2174
2175	Marks the database as dirty, to be updated at a later time.
2176
2177	=item cf::db_sync
2178
2179	Immediately write the database to disk I<if it is dirty>.
2180
2181	=cut
2182
2183	our $DB;
2184
2185	{
2186	my $path = cf::localdir . "/database.pst";
2187
2188	sub db_load() {
2189	$DB = stat $path ? Storable::retrieve $path : { };
2190	}	3185	};
		3186	cf::cede_to_tick;
2191		3187
2192	my $pid;
2193
2194	sub db_save() {
2195	waitpid $pid, 0 if $pid;
2196	if (0 == ($pid = fork)) {
2197	$DB->{_meta}{version} = 1;
2198	Storable::nstore $DB, "$path~";
2199	rename "$path~", $path;
2200	cf::_exit 0 if defined $pid;
2201	}
2202	}	3188	{
		3189	my $faces = $facedata->{faceinfo};
2203		3190
2204	my $dirty;	3191	while (my ($face, $info) = each %$faces) {
		3192	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2205		3193
2206	sub db_sync() {	3194	cf::face::set_visibility $idx, $info->{visibility};
2207	db_save if $dirty;	3195	cf::face::set_magicmap $idx, $info->{magicmap};
2208	undef $dirty;	3196	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2209	}	3197	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2210		3198
2211	my $idle = Event->idle (	3199	cf::cede_to_tick;
2212	reentrant => 0,
2213	min => 10,
2214	max => 20,
2215	repeat => 0,
2216	data => WF_AUTOCANCEL,
2217	cb => \&db_sync,
2218	);
2219
2220	sub db_dirty() {
2221	$dirty = 1;
2222	$idle->start;
2223	}
2224
2225	sub db_get($;$) {
2226	@_ >= 2
2227	? $DB->{$_[0]}{$_[1]}
2228	: ($DB->{$_[0]} ||= { })
2229	}
2230
2231	sub db_put($$;$) {
2232	if (@_ >= 3) {
2233	$DB->{$_[0]}{$_[1]} = $_[2];
2234	} else {
2235	$DB->{$_[0]} = $_[1];
2236	}
2237	db_dirty;
2238	}
2239
2240	cf::global->attach (
2241	prio => 10000,
2242	on_cleanup => sub {
2243	db_sync;
2244	},	3200	}
2245	);
2246	}
2247		3201
2248	#############################################################################	3202	while (my ($face, $info) = each %$faces) {
2249	# the server's main()	3203	next unless $info->{smooth};
2250		3204
2251	sub cfg_load {	3205	my $idx = cf::face::find $face
		3206	or next;
		3207
		3208	if (my $smooth = cf::face::find $info->{smooth}) {
		3209	cf::face::set_smooth $idx, $smooth;
		3210	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3211	} else {
		3212	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3213	}
		3214
		3215	cf::cede_to_tick;
		3216	}
		3217	}
		3218
		3219	{
		3220	my $anims = $facedata->{animinfo};
		3221
		3222	while (my ($anim, $info) = each %$anims) {
		3223	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3224	cf::cede_to_tick;
		3225	}
		3226
		3227	cf::anim::invalidate_all; # d'oh
		3228	}
		3229
		3230	{
		3231	# TODO: for gcfclient pleasure, we should give resources
		3232	# that gcfclient doesn't grok a >10000 face index.
		3233	my $res = $facedata->{resource};
		3234
		3235	while (my ($name, $info) = each %$res) {
		3236	if (defined $info->{type}) {
		3237	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3238	my $data;
		3239
		3240	if ($info->{type} & 1) {
		3241	# prepend meta info
		3242
		3243	my $meta = $enc->encode ({
		3244	name => $name,
		3245	%{ $info->{meta} || {} },
		3246	});
		3247
		3248	$data = pack "(w/a*)*", $meta, $info->{data};
		3249	} else {
		3250	$data = $info->{data};
		3251	}
		3252
		3253	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3254	cf::face::set_type $idx, $info->{type};
		3255	} else {
		3256	$RESOURCE{$name} = $info;
		3257	}
		3258
		3259	cf::cede_to_tick;
		3260	}
		3261	}
		3262
		3263	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3264
		3265	1
		3266	}
		3267
		3268	cf::global->attach (on_resource_update => sub {
		3269	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3270	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3271
		3272	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3273	my $sound = $soundconf->{compat}[$_]
		3274	or next;
		3275
		3276	my $face = cf::face::find "sound/$sound->[1]";
		3277	cf::sound::set $sound->[0] => $face;
		3278	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3279	}
		3280
		3281	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3282	my $face = cf::face::find "sound/$v";
		3283	cf::sound::set $k => $face;
		3284	}
		3285	}
		3286	});
		3287
		3288	register_exticmd fx_want => sub {
		3289	my ($ns, $want) = @_;
		3290
		3291	while (my ($k, $v) = each %$want) {
		3292	$ns->fx_want ($k, $v);
		3293	}
		3294	};
		3295
		3296	sub load_resource_file($) {
		3297	my $guard = lock_acquire "load_resource_file";
		3298
		3299	my $status = load_resource_file_ $_[0];
		3300	get_slot 0.1, 100;
		3301	cf::arch::commit_load;
		3302
		3303	$status
		3304	}
		3305
		3306	sub reload_regions {
		3307	# HACK to clear player env face cache, we need some signal framework
		3308	# for this (global event?)
		3309	%ext::player_env::MUSIC_FACE_CACHE = ();
		3310
		3311	load_resource_file "$MAPDIR/regions"
		3312	or die "unable to load regions file\n";
		3313
		3314	for (cf::region::list) {
		3315	$_->{match} = qr/$_->{match}/
		3316	if exists $_->{match};
		3317	}
		3318	}
		3319
		3320	sub reload_facedata {
		3321	load_facedata "$DATADIR/facedata"
		3322	or die "unable to load facedata\n";
		3323	}
		3324
		3325	sub reload_archetypes {
		3326	load_resource_file "$DATADIR/archetypes"
		3327	or die "unable to load archetypes\n";
		3328	}
		3329
		3330	sub reload_treasures {
		3331	load_resource_file "$DATADIR/treasures"
		3332	or die "unable to load treasurelists\n";
		3333	}
		3334
		3335	sub reload_resources {
		3336	warn "reloading resource files...\n";
		3337
		3338	reload_facedata;
		3339	reload_archetypes;
		3340	reload_regions;
		3341	reload_treasures;
		3342
		3343	warn "finished reloading resource files\n";
		3344	}
		3345
		3346	sub init {
		3347	my $guard = freeze_mainloop;
		3348
		3349	evthread_start IO::AIO::poll_fileno;
		3350
		3351	reload_resources;
		3352	}
		3353
		3354	sub reload_config {
2252	open my $fh, "<:utf8", cf::confdir . "/config"	3355	open my $fh, "<:utf8", "$CONFDIR/config"
2253	or return;	3356	or return;
2254		3357
2255	local $/;	3358	local $/;
2256	*CFG = YAML::Syck::Load <$fh>;	3359	*CFG = YAML::Load <$fh>;
2257		3360
2258	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3361	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2259		3362
2260	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3363	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2261	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3364	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2267	};	3370	};
2268	warn $@ if $@;	3371	warn $@ if $@;
2269	}	3372	}
2270	}	3373	}
2271		3374
		3375	sub pidfile() {
		3376	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3377	or die "$PIDFILE: $!";
		3378	flock $fh, &Fcntl::LOCK_EX
		3379	or die "$PIDFILE: flock: $!";
		3380	$fh
		3381	}
		3382
		3383	# make sure only one server instance is running at any one time
		3384	sub atomic {
		3385	my $fh = pidfile;
		3386
		3387	my $pid = <$fh>;
		3388	kill 9, $pid if $pid > 0;
		3389
		3390	seek $fh, 0, 0;
		3391	print $fh $$;
		3392	}
		3393
2272	sub main {	3394	sub main {
		3395	atomic;
		3396
2273	# we must not ever block the main coroutine	3397	# we must not ever block the main coroutine
2274	local $Coro::idle = sub {	3398	local $Coro::idle = sub {
2275	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3399	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2276	(async {	3400	(async {
2277	Event::one_event;	3401	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3402	EV::loop EV::LOOP_ONESHOT;
2278	})->prio (Coro::PRIO_MAX);	3403	})->prio (Coro::PRIO_MAX);
2279	};	3404	};
2280		3405
2281	cfg_load;	3406	{
2282	db_load;	3407	my $guard = freeze_mainloop;
		3408	reload_config;
		3409	db_init;
2283	load_extensions;	3410	load_extensions;
2284		3411
2285	$TICK_WATCHER->start;	3412	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3413	}
		3414
		3415	utime time, time, $RUNTIMEFILE;
		3416
		3417	# no (long-running) fork's whatsoever before this point(!)
		3418	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3419
2286	Event::loop;	3420	EV::loop;
2287	}	3421	}
2288		3422
2289	#############################################################################	3423	#############################################################################
2290	# initialisation and cleanup	3424	# initialisation and cleanup
2291		3425
2292	# install some emergency cleanup handlers	3426	# install some emergency cleanup handlers
2293	BEGIN {	3427	BEGIN {
		3428	our %SIGWATCHER = ();
2294	for my $signal (qw(INT HUP TERM)) {	3429	for my $signal (qw(INT HUP TERM)) {
2295	Event->signal (	3430	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2296	reentrant => 0,
2297	data => WF_AUTOCANCEL,
2298	signal => $signal,
2299	cb => sub {
2300	cf::cleanup "SIG$signal";	3431	cf::cleanup "SIG$signal";
2301	},
2302	);	3432	};
		3433	}
		3434	}
		3435
		3436	sub write_runtime_sync {
		3437	# first touch the runtime file to show we are still running:
		3438	# the fsync below can take a very very long time.
		3439
		3440	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3441
		3442	my $guard = cf::lock_acquire "write_runtime";
		3443
		3444	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3445	or return;
		3446
		3447	my $value = $cf::RUNTIME + 90 + 10;
		3448	# 10 is the runtime save interval, for a monotonic clock
		3449	# 60 allows for the watchdog to kill the server.
		3450
		3451	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3452	and return;
		3453
		3454	# always fsync - this file is important
		3455	aio_fsync $fh
		3456	and return;
		3457
		3458	# touch it again to show we are up-to-date
		3459	aio_utime $fh, undef, undef;
		3460
		3461	close $fh
		3462	or return;
		3463
		3464	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3465	and return;
		3466
		3467	warn "runtime file written.\n";
		3468
2303	}	3469	1
		3470	}
		3471
		3472	our $uuid_lock;
		3473	our $uuid_skip;
		3474
		3475	sub write_uuid_sync($) {
		3476	$uuid_skip ||= $_[0];
		3477
		3478	return if $uuid_lock;
		3479	local $uuid_lock = 1;
		3480
		3481	my $uuid = "$LOCALDIR/uuid";
		3482
		3483	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3484	or return;
		3485
		3486	my $value = uuid_str $uuid_skip + uuid_seq uuid_cur;
		3487	$uuid_skip = 0;
		3488
		3489	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3490	and return;
		3491
		3492	# always fsync - this file is important
		3493	aio_fsync $fh
		3494	and return;
		3495
		3496	close $fh
		3497	or return;
		3498
		3499	aio_rename "$uuid~", $uuid
		3500	and return;
		3501
		3502	warn "uuid file written ($value).\n";
		3503
		3504	1
		3505
		3506	}
		3507
		3508	sub write_uuid($$) {
		3509	my ($skip, $sync) = @_;
		3510
		3511	$sync ? write_uuid_sync $skip
		3512	: async { write_uuid_sync $skip };
2304	}	3513	}
2305		3514
2306	sub emergency_save() {	3515	sub emergency_save() {
2307	my $freeze_guard = cf::freeze_mainloop;	3516	my $freeze_guard = cf::freeze_mainloop;
2308		3517
…		…
2314	# and maps saved/destroyed asynchronously.	3523	# and maps saved/destroyed asynchronously.
2315	warn "begin emergency player save\n";	3524	warn "begin emergency player save\n";
2316	for my $login (keys %cf::PLAYER) {	3525	for my $login (keys %cf::PLAYER) {
2317	my $pl = $cf::PLAYER{$login} or next;	3526	my $pl = $cf::PLAYER{$login} or next;
2318	$pl->valid or next;	3527	$pl->valid or next;
		3528	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2319	$pl->save;	3529	$pl->save;
2320	}	3530	}
2321	warn "end emergency player save\n";	3531	warn "end emergency player save\n";
2322		3532
2323	warn "begin emergency map save\n";	3533	warn "begin emergency map save\n";
…		…
2325	my $map = $cf::MAP{$path} or next;	3535	my $map = $cf::MAP{$path} or next;
2326	$map->valid or next;	3536	$map->valid or next;
2327	$map->save;	3537	$map->save;
2328	}	3538	}
2329	warn "end emergency map save\n";	3539	warn "end emergency map save\n";
		3540
		3541	warn "begin emergency database checkpoint\n";
		3542	BDB::db_env_txn_checkpoint $DB_ENV;
		3543	warn "end emergency database checkpoint\n";
		3544
		3545	warn "begin write uuid\n";
		3546	write_uuid_sync 1;
		3547	warn "end write uuid\n";
2330	};	3548	};
2331		3549
2332	warn "leave emergency perl save\n";	3550	warn "leave emergency perl save\n";
2333	}	3551	}
2334		3552
		3553	sub post_cleanup {
		3554	my ($make_core) = @_;
		3555
		3556	warn Carp::longmess "post_cleanup backtrace"
		3557	if $make_core;
		3558
		3559	my $fh = pidfile;
		3560	unlink $PIDFILE if <$fh> == $$;
		3561	}
		3562
		3563	# a safer delete_package, copied from Symbol
		3564	sub clear_package($) {
		3565	my $pkg = shift;
		3566
		3567	# expand to full symbol table name if needed
		3568	unless ($pkg =~ /^main::.*::$/) {
		3569	$pkg = "main$pkg" if $pkg =~ /^::/;
		3570	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3571	$pkg .= '::' unless $pkg =~ /::$/;
		3572	}
		3573
		3574	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3575	my $stem_symtab = *{$stem}{HASH};
		3576
		3577	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3578	or return;
		3579
		3580	# clear all symbols
		3581	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3582	for my $name (keys %$leaf_symtab) {
		3583	_gv_clear *{"$pkg$name"};
		3584	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3585	}
		3586	warn "cleared package $pkg\n";#d#
		3587	}
		3588
2335	sub reload() {	3589	sub do_reload_perl() {
2336	# can/must only be called in main	3590	# can/must only be called in main
2337	if ($Coro::current != $Coro::main) {	3591	if ($Coro::current != $Coro::main) {
2338	warn "can only reload from main coroutine";	3592	warn "can only reload from main coroutine";
2339	return;	3593	return;
2340	}	3594	}
2341		3595
		3596	return if $RELOAD++;
		3597
		3598	while ($RELOAD) {
2342	warn "reloading...";	3599	warn "reloading...";
2343		3600
2344	warn "cancelling server ticker";	3601	warn "entering sync_job";
2345	$TICK_WATCHER->cancel;
2346		3602
		3603	cf::sync_job {
		3604	cf::write_runtime_sync; # external watchdog should not bark
2347	cf::emergency_save;	3605	cf::emergency_save;
		3606	cf::write_runtime_sync; # external watchdog should not bark
2348		3607
2349	eval {	3608	warn "syncing database to disk";
		3609	BDB::db_env_txn_checkpoint $DB_ENV;
		3610
2350	# if anything goes wrong in here, we should simply crash as we already saved	3611	# if anything goes wrong in here, we should simply crash as we already saved
2351		3612
2352	warn "syncing database to disk";
2353	cf::db_sync;
2354
2355	warn "cancelling all WF_AUTOCANCEL watchers";
2356	for (Event::all_watchers) {
2357	$_->cancel if $_->data & WF_AUTOCANCEL;
2358	}
2359
2360	warn "flushing outstanding aio requests";	3613	warn "flushing outstanding aio requests";
2361	for (;;) {	3614	while (IO::AIO::nreqs || BDB::nreqs) {
2362	IO::AIO::flush;	3615	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2363	Coro::cede;
2364	last unless IO::AIO::nreqs;
2365	warn "iterate...";
2366	}
2367
2368	warn "cancelling all extension coros";
2369	$_->cancel for values %EXT_CORO;
2370	%EXT_CORO = ();
2371
2372	warn "removing commands";
2373	%COMMAND = ();
2374
2375	warn "removing ext commands";
2376	%EXTCMD = ();
2377
2378	warn "unloading/nuking all extensions";
2379	for my $pkg (@EXTS) {
2380	warn "... unloading $pkg";
2381
2382	if (my $cb = $pkg->can ("unload")) {
2383	eval {
2384	$cb->($pkg);
2385	1
2386	} or warn "$pkg unloaded, but with errors: $@";
2387	}	3616	}
2388		3617
2389	warn "... nuking $pkg";	3618	warn "cancelling all extension coros";
2390	Symbol::delete_package $pkg;	3619	$_->cancel for values %EXT_CORO;
2391	}	3620	%EXT_CORO = ();
2392		3621
2393	warn "unloading all perl modules loaded from $LIBDIR";	3622	warn "removing commands";
2394	while (my ($k, $v) = each %INC) {	3623	%COMMAND = ();
2395	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2396		3624
		3625	warn "removing ext/exti commands";
		3626	%EXTCMD = ();
		3627	%EXTICMD = ();
		3628
		3629	warn "unloading/nuking all extensions";
		3630	for my $pkg (@EXTS) {
2397	warn "... unloading $k";	3631	warn "... unloading $pkg";
2398	delete $INC{$k};
2399		3632
2400	$k =~ s/\.pm$//;
2401	$k =~ s/\//::/g;
2402
2403	if (my $cb = $k->can ("unload_module")) {	3633	if (my $cb = $pkg->can ("unload")) {
		3634	eval {
2404	$cb->();	3635	$cb->($pkg);
		3636	1
		3637	} or warn "$pkg unloaded, but with errors: $@";
		3638	}
		3639
		3640	warn "... clearing $pkg";
		3641	clear_package $pkg;
2405	}	3642	}
2406		3643
2407	Symbol::delete_package $k;	3644	warn "unloading all perl modules loaded from $LIBDIR";
		3645	while (my ($k, $v) = each %INC) {
		3646	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3647
		3648	warn "... unloading $k";
		3649	delete $INC{$k};
		3650
		3651	$k =~ s/\.pm$//;
		3652	$k =~ s/\//::/g;
		3653
		3654	if (my $cb = $k->can ("unload_module")) {
		3655	$cb->();
		3656	}
		3657
		3658	clear_package $k;
2408	}	3659	}
2409		3660
2410	warn "getting rid of safe::, as good as possible";	3661	warn "getting rid of safe::, as good as possible";
2411	Symbol::delete_package "safe::$_"	3662	clear_package "safe::$_"
2412	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3663	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2413		3664
2414	warn "unloading cf.pm \"a bit\"";	3665	warn "unloading cf.pm \"a bit\"";
2415	delete $INC{"cf.pm"};	3666	delete $INC{"cf.pm"};
		3667	delete $INC{"cf/pod.pm"};
2416		3668
2417	# don't, removes xs symbols, too,	3669	# don't, removes xs symbols, too,
2418	# and global variables created in xs	3670	# and global variables created in xs
2419	#Symbol::delete_package __PACKAGE__;	3671	#clear_package __PACKAGE__;
2420		3672
2421	warn "unload completed, starting to reload now";	3673	warn "unload completed, starting to reload now";
2422		3674
2423	warn "reloading cf.pm";	3675	warn "reloading cf.pm";
2424	require cf;	3676	require cf;
2425	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3677	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2426		3678
2427	warn "loading config and database again";	3679	warn "loading config and database again";
2428	cf::cfg_load;	3680	cf::reload_config;
2429	cf::db_load;
2430		3681
2431	warn "loading extensions";	3682	warn "loading extensions";
2432	cf::load_extensions;	3683	cf::load_extensions;
2433		3684
2434	warn "reattaching attachments to objects/players";	3685	warn "reattaching attachments to objects/players";
2435	_global_reattach;	3686	_global_reattach; # objects, sockets
2436	warn "reattaching attachments to maps";	3687	warn "reattaching attachments to maps";
2437	reattach $_ for values %MAP;	3688	reattach $_ for values %MAP;
		3689	warn "reattaching attachments to players";
		3690	reattach $_ for values %PLAYER;
2438		3691
2439	warn "restarting server ticker";	3692	warn "leaving sync_job";
2440		3693
2441	$TICK_WATCHER->start;	3694	1
		3695	} or do {
		3696	warn $@;
		3697	cf::cleanup "error while reloading, exiting.";
		3698	};
		3699
		3700	warn "reloaded";
		3701	--$RELOAD;
		3702	}
		3703	};
		3704
		3705	our $RELOAD_WATCHER; # used only during reload
		3706
		3707	sub reload_perl() {
		3708	# doing reload synchronously and two reloads happen back-to-back,
		3709	# coro crashes during coro_state_free->destroy here.
		3710
		3711	$RELOAD_WATCHER ||= EV::timer $TICK * 1.5, 0, sub {
		3712	do_reload_perl;
		3713	undef $RELOAD_WATCHER;
2442	};	3714	};
2443		3715	}
2444	if ($@) {
2445	warn $@;
2446	warn "error while reloading, exiting.";
2447	exit 1;
2448	}
2449
2450	warn "reloaded";
2451	};
2452
2453	our $RELOAD_WATCHER; # used only during reload
2454		3716
2455	register_command "reload" => sub {	3717	register_command "reload" => sub {
2456	my ($who, $arg) = @_;	3718	my ($who, $arg) = @_;
2457		3719
2458	if ($who->flag (FLAG_WIZ)) {	3720	if ($who->flag (FLAG_WIZ)) {
2459	$who->message ("reloading server.");	3721	$who->message ("reloading server.");
2460		3722	async {
2461	# doing reload synchronously and two reloads happen back-to-back,	3723	$Coro::current->{desc} = "perl_reload";
2462	# coro crashes during coro_state_free->destroy here.
2463
2464	$RELOAD_WATCHER ||= Event->timer (
2465	reentrant => 0,
2466	after => 0,
2467	data => WF_AUTOCANCEL,
2468	cb => sub {
2469	reload;	3724	reload_perl;
2470	undef $RELOAD_WATCHER;
2471	},
2472	);	3725	};
2473	}	3726	}
2474	};	3727	};
2475		3728
2476	unshift @INC, $LIBDIR;	3729	unshift @INC, $LIBDIR;
2477		3730
2478	my $bug_warning = 0;	3731	my $bug_warning = 0;
2479		3732
2480	$TICK_WATCHER = Event->timer (	3733	our @WAIT_FOR_TICK;
2481	reentrant => 0,	3734	our @WAIT_FOR_TICK_BEGIN;
2482	parked => 1,	3735
2483	prio => -1,	3736	sub wait_for_tick {
2484	at => $NEXT_TICK || $TICK,	3737	return if tick_inhibit || $Coro::current == $Coro::main;
2485	data => WF_AUTOCANCEL,	3738
2486	cb => sub {	3739	my $signal = new Coro::Signal;
		3740	push @WAIT_FOR_TICK, $signal;
		3741	$signal->wait;
		3742	}
		3743
		3744	sub wait_for_tick_begin {
		3745	return if tick_inhibit || $Coro::current == $Coro::main;
		3746
		3747	my $signal = new Coro::Signal;
		3748	push @WAIT_FOR_TICK_BEGIN, $signal;
		3749	$signal->wait;
		3750	}
		3751
		3752	sub tick {
2487	if ($Coro::current != $Coro::main) {	3753	if ($Coro::current != $Coro::main) {
2488	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3754	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2489	unless ++$bug_warning > 10;	3755	unless ++$bug_warning > 10;
2490	return;	3756	return;
2491	}	3757	}
2492		3758
2493	$NOW = Event::time;
2494
2495	cf::server_tick; # one server iteration	3759	cf::server_tick; # one server iteration
2496	$RUNTIME += $TICK;
2497	$NEXT_TICK += $TICK;
2498		3760
2499	$WAIT_FOR_TICK->broadcast;	3761	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2500	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3762	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2501		3763	Coro::async_pool {
2502	my $AFTER = Event::time;	3764	$Coro::current->{desc} = "runtime saver";
2503	warn $AFTER - $NOW;#d#
2504
2505	# if we are delayed by four ticks or more, skip them all
2506	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2507
2508	$TICK_WATCHER->at ($NEXT_TICK);
2509	$TICK_WATCHER->start;
2510	},
2511	);
2512
2513	IO::AIO::max_poll_time $TICK * 0.2;
2514
2515	undef $Coro::AIO::WATCHER;
2516	$AIO_POLL_WATCHER = Event->io (
2517	reentrant => 0,
2518	fd => IO::AIO::poll_fileno,
2519	poll => 'r',
2520	prio => 6,
2521	data => WF_AUTOCANCEL,
2522	cb => \&IO::AIO::poll_cb,
2523	);
2524
2525	$WRITE_RUNTIME_WATCHER = Event->timer (
2526	reentrant => 0,
2527	data => WF_AUTOCANCEL,
2528	after => 1,
2529	interval => 10,
2530	prio => 6, # keep it lowest so it acts like a watchdog
2531	cb => Coro::unblock_sub {
2532	write_runtime	3765	write_runtime_sync
2533	or warn "ERROR: unable to write runtime file: $!";	3766	or warn "ERROR: unable to write runtime file: $!";
		3767	};
2534	},	3768	}
2535	);	3769
		3770	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3771	$sig->send;
		3772	}
		3773	while (my $sig = shift @WAIT_FOR_TICK) {
		3774	$sig->send;
		3775	}
		3776
		3777	$LOAD = ($NOW - $TICK_START) / $TICK;
		3778	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3779
		3780	if (0) {
		3781	if ($NEXT_TICK) {
		3782	my $jitter = $TICK_START - $NEXT_TICK;
		3783	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3784	warn "jitter $JITTER\n";#d#
		3785	}
		3786	}
		3787	}
		3788
		3789	{
		3790	# configure BDB
		3791
		3792	BDB::min_parallel 8;
		3793	BDB::max_poll_reqs $TICK * 0.1;
		3794	$AnyEvent::BDB::WATCHER->priority (1);
		3795
		3796	unless ($DB_ENV) {
		3797	$DB_ENV = BDB::db_env_create;
		3798	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3799	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3800	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3801	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3802	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3803
		3804	cf::sync_job {
		3805	eval {
		3806	BDB::db_env_open
		3807	$DB_ENV,
		3808	$BDBDIR,
		3809	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3810	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3811	0666;
		3812
		3813	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3814	};
		3815
		3816	cf::cleanup "db_env_open(db): $@" if $@;
		3817	};
		3818	}
		3819
		3820	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3821	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3822	};
		3823	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3824	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3825	};
		3826	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3827	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3828	};
		3829	}
		3830
		3831	{
		3832	# configure IO::AIO
		3833
		3834	IO::AIO::min_parallel 8;
		3835	IO::AIO::max_poll_time $TICK * 0.1;
		3836	undef $AnyEvent::AIO::WATCHER;
		3837	}
		3838
		3839	my $_log_backtrace;
		3840
		3841	sub _log_backtrace {
		3842	my ($msg, @addr) = @_;
		3843
		3844	$msg =~ s/\n//;
		3845
		3846	# limit the # of concurrent backtraces
		3847	if ($_log_backtrace < 2) {
		3848	++$_log_backtrace;
		3849	my $perl_bt = Carp::longmess $msg;
		3850	async {
		3851	$Coro::current->{desc} = "abt $msg";
		3852
		3853	my @bt = fork_call {
		3854	@addr = map { sprintf "%x", $_ } @addr;
		3855	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3856	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3857	or die "addr2line: $!";
		3858
		3859	my @funcs;
		3860	my @res = <$fh>;
		3861	chomp for @res;
		3862	while (@res) {
		3863	my ($func, $line) = splice @res, 0, 2, ();
		3864	push @funcs, "[$func] $line";
		3865	}
		3866
		3867	@funcs
		3868	};
		3869
		3870	LOG llevInfo, "[ABT] $perl_bt\n";
		3871	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3872	LOG llevInfo, "[ABT] $_\n" for @bt;
		3873	--$_log_backtrace;
		3874	};
		3875	} else {
		3876	LOG llevInfo, "[ABT] $msg\n";
		3877	LOG llevInfo, "[ABT] [suppressed]\n";
		3878	}
		3879	}
		3880
		3881	# load additional modules
		3882	use cf::pod;
2536		3883
2537	END { cf::emergency_save }	3884	END { cf::emergency_save }
2538		3885
2539	1	3886	1
2540		3887

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