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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.224 by root, Mon Mar 12 21:42:12 2007 UTC vs.
Revision 1.418 by root, Fri Apr 11 21:09:53 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
3	use utf8;	24	use utf8;
4	use strict;	25	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
9	use Event;	30	use EV 3.2;
10	use Opcode;	31	use Opcode;
11	use Safe;	32	use Safe;
12	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
13		35
14	use Coro 3.52 ();	36	use Coro 4.50 ();
15	use Coro::State;	37	use Coro::State;
		38	use Coro::Handle;
16	use Coro::Event;	39	use Coro::EV;
17	use Coro::Timer;	40	use Coro::Timer;
18	use Coro::Signal;	41	use Coro::Signal;
19	use Coro::Semaphore;	42	use Coro::Semaphore;
20	use Coro::AIO;	43	use Coro::AIO;
		44	use Coro::BDB;
		45	use Coro::Storable;
		46	use Coro::Util ();
21		47
		48	use JSON::XS 2.01 ();
22	use BDB ();	49	use BDB ();
23	use Data::Dumper;	50	use Data::Dumper;
24	use Digest::MD5;	51	use Digest::MD5;
25	use Fcntl;	52	use Fcntl;
		53	use YAML ();
26	use IO::AIO 2.32 ();	54	use IO::AIO 2.51 ();
27	use YAML::Syck ();
28	use Time::HiRes;	55	use Time::HiRes;
29	use Compress::LZF;	56	use Compress::LZF;
		57	use Digest::MD5 ();
30		58
		59	# configure various modules to our taste
		60	#
		61	$Storable::canonical = 1; # reduce rsync transfers
31	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	62	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
32	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	63	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
33	$Event::Eval = 1; # no idea why this is required, but it is	64
		65	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
34		66
35	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	67	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
36
37	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
38	$YAML::Syck::ImplicitUnicode = 1;
39
40	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
41		68
42	our %COMMAND = ();	69	our %COMMAND = ();
43	our %COMMAND_TIME = ();	70	our %COMMAND_TIME = ();
44		71
45	our @EXTS = (); # list of extension package names	72	our @EXTS = (); # list of extension package names
46	our %EXTCMD = ();	73	our %EXTCMD = ();
		74	our %EXTICMD = ();
47	our %EXT_CORO = (); # coroutines bound to extensions	75	our %EXT_CORO = (); # coroutines bound to extensions
48	our %EXT_MAP = (); # pluggable maps	76	our %EXT_MAP = (); # pluggable maps
49		77
50	our $RELOAD; # number of reloads so far	78	our $RELOAD; # number of reloads so far
51	our @EVENT;	79	our @EVENT;
52	our $LIBDIR = datadir . "/ext";
53		80
54	our $TICK = MAX_TIME * 1e-6;	81	our $CONFDIR = confdir;
55	our $TICK_WATCHER;	82	our $DATADIR = datadir;
		83	our $LIBDIR = "$DATADIR/ext";
		84	our $PODDIR = "$DATADIR/pod";
		85	our $MAPDIR = "$DATADIR/" . mapdir;
		86	our $LOCALDIR = localdir;
		87	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		88	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		89	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		90	our $RANDOMDIR = "$LOCALDIR/random";
		91	our $BDBDIR = "$LOCALDIR/db";
		92	our %RESOURCE;
		93
		94	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
56	our $AIO_POLL_WATCHER;	95	our $AIO_POLL_WATCHER;
57	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	96	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
58	our $NEXT_TICK;	97	our $NEXT_TICK;
59	our $NOW;
60	our $USE_FSYNC = 1; # use fsync to write maps - default off	98	our $USE_FSYNC = 1; # use fsync to write maps - default off
61		99
62	our $BDB_POLL_WATCHER;	100	our $BDB_POLL_WATCHER;
		101	our $BDB_DEADLOCK_WATCHER;
		102	our $BDB_CHECKPOINT_WATCHER;
		103	our $BDB_TRICKLE_WATCHER;
63	our $DB_ENV;	104	our $DB_ENV;
64		105
65	our %CFG;	106	our %CFG;
66		107
67	our $UPTIME; $UPTIME ||= time;	108	our $UPTIME; $UPTIME ||= time;
68	our $RUNTIME;	109	our $RUNTIME;
		110	our $NOW;
69		111
70	our %PLAYER; # all users	112	our (%PLAYER, %PLAYER_LOADING); # all users
71	our %MAP; # all maps	113	our (%MAP, %MAP_LOADING ); # all maps
72	our $LINK_MAP; # the special {link} map, which is always available	114	our $LINK_MAP; # the special {link} map, which is always available
73	our $RANDOM_MAPS = cf::localdir . "/random";
74	our $BDB_ENV_DIR = cf::localdir . "/db";
75
76	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
77	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
78		115
79	# used to convert map paths into valid unix filenames by replacing / by ∕	116	# used to convert map paths into valid unix filenames by replacing / by ∕
80	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	117	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
81		118
		119	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		120	our $LOADAVG; # same thing, but with alpha-smoothing
		121	our $JITTER; # average jitter
		122	our $TICK_START; # for load detecting purposes
		123
82	binmode STDOUT;	124	binmode STDOUT;
83	binmode STDERR;	125	binmode STDERR;
84		126
85	# read virtual server time, if available	127	# read virtual server time, if available
86	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	128	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
87	open my $fh, "<", cf::localdir . "/runtime"	129	open my $fh, "<", "$LOCALDIR/runtime"
88	or die "unable to read runtime file: $!";	130	or die "unable to read runtime file: $!";
89	$RUNTIME = <$fh> + 0.;	131	$RUNTIME = <$fh> + 0.;
90	}	132	}
91		133
92	mkdir cf::localdir;	134	mkdir $_
93	mkdir cf::localdir . "/" . cf::playerdir;	135	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
94	mkdir cf::localdir . "/" . cf::tmpdir;
95	mkdir cf::localdir . "/" . cf::uniquedir;
96	mkdir $RANDOM_MAPS;
97	mkdir $BDB_ENV_DIR;
98		136
99	our $EMERGENCY_POSITION;	137	our $EMERGENCY_POSITION;
100		138
101	sub cf::map::normalise;	139	sub cf::map::normalise;
102		140
…		…
113	=item $cf::RUNTIME	151	=item $cf::RUNTIME
114		152
115	The time this server has run, starts at 0 and is increased by $cf::TICK on	153	The time this server has run, starts at 0 and is increased by $cf::TICK on
116	every server tick.	154	every server tick.
117		155
118	=item $cf::LIBDIR	156	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		157	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		158	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
119		159
120	The perl library directory, where extensions and cf-specific modules can	160	Various directories - "/etc", read-only install directory, perl-library
121	be found. It will be added to C<@INC> automatically.	161	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		162	unique-items directory, player file directory, random maps directory and
		163	database environment.
122		164
123	=item $cf::NOW	165	=item $cf::NOW
124		166
125	The time of the last (current) server tick.	167	The time of the last (current) server tick.
126		168
127	=item $cf::TICK	169	=item $cf::TICK
128		170
129	The interval between server ticks, in seconds.	171	The interval between server ticks, in seconds.
130		172
		173	=item $cf::LOADAVG
		174
		175	The current CPU load on the server (alpha-smoothed), as a value between 0
		176	(none) and 1 (overloaded), indicating how much time is spent on processing
		177	objects per tick. Healthy values are < 0.5.
		178
		179	=item $cf::LOAD
		180
		181	The raw value load value from the last tick.
		182
131	=item %cf::CFG	183	=item %cf::CFG
132		184
133	Configuration for the server, loaded from C</etc/crossfire/config>, or	185	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
134	from wherever your confdir points to.	186	from wherever your confdir points to.
135		187
136	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	188	=item cf::wait_for_tick, cf::wait_for_tick_begin
137		189
138	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	190	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
139	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	191	returns directly I<after> the tick processing (and consequently, can only wake one process
140	processing has been done. Call C<< ->wait >> on them to maximise the	192	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
141	window of cpu time available, or simply to synchronise to the server tick.	193
		194	=item @cf::INVOKE_RESULTS
		195
		196	This array contains the results of the last C<invoke ()> call. When
		197	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		198	that call.
142		199
143	=back	200	=back
144		201
145	=cut	202	=cut
146		203
147	BEGIN {	204	BEGIN {
148	*CORE::GLOBAL::warn = sub {	205	*CORE::GLOBAL::warn = sub {
149	my $msg = join "", @_;	206	my $msg = join "", @_;
150	utf8::encode $msg;
151		207
152	$msg .= "\n"	208	$msg .= "\n"
153	unless $msg =~ /\n$/;	209	unless $msg =~ /\n$/;
154		210
		211	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		212
155	LOG llevError, $msg;	213	LOG llevError, $msg;
156	};	214	};
157	}	215	}
		216
		217	$Coro::State::DIEHOOK = sub {
		218	return unless $^S eq 0; # "eq", not "=="
		219
		220	if ($Coro::current == $Coro::main) {#d#
		221	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		222	return;#d#
		223	}#d#
		224
		225	# kill coroutine otherwise
		226	warn Carp::longmess $_[0];
		227	Coro::terminate
		228	};
		229
		230	$SIG{__DIE__} = sub { }; #d#?
158		231
159	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	232	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
160	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	233	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
161	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	234	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
162	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	235	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
163	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	236	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		237	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
164	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	238	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
165		239
166	# we bless all objects into (empty) derived classes to force a method lookup	240	# we bless all objects into (empty) derived classes to force a method lookup
167	# within the Safe compartment.	241	# within the Safe compartment.
168	for my $pkg (qw(	242	for my $pkg (qw(
169	cf::global cf::attachable	243	cf::global cf::attachable
…		…
174	)) {	248	)) {
175	no strict 'refs';	249	no strict 'refs';
176	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	250	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
177	}	251	}
178		252
179	$Event::DIED = sub {	253	$EV::DIED = sub {
180	warn "error in event callback: @_";	254	warn "error in event callback: @_";
181	};	255	};
		256
		257	#############################################################################
182		258
183	=head2 UTILITY FUNCTIONS	259	=head2 UTILITY FUNCTIONS
184		260
185	=over 4	261	=over 4
186		262
…		…
205	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	281	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
206	$d	282	$d
207	} || "[unable to dump $_[0]: '$@']";	283	} || "[unable to dump $_[0]: '$@']";
208	}	284	}
209		285
210	use JSON::Syck (); # TODO# replace by JSON::PC once working
211
212	=item $ref = cf::from_json $json	286	=item $ref = cf::decode_json $json
213		287
214	Converts a JSON string into the corresponding perl data structure.	288	Converts a JSON string into the corresponding perl data structure.
215		289
216	=cut
217
218	sub from_json($) {
219	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
220	JSON::Syck::Load $_[0]
221	}
222
223	=item $json = cf::to_json $ref	290	=item $json = cf::encode_json $ref
224		291
225	Converts a perl data structure into its JSON representation.	292	Converts a perl data structure into its JSON representation.
226		293
227	=cut	294	=cut
228		295
229	sub to_json($) {	296	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
230	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	297
231	JSON::Syck::Dump $_[0]	298	sub encode_json($) { $json_coder->encode ($_[0]) }
232	}	299	sub decode_json($) { $json_coder->decode ($_[0]) }
233		300
234	=item cf::lock_wait $string	301	=item cf::lock_wait $string
235		302
236	Wait until the given lock is available. See cf::lock_acquire.	303	Wait until the given lock is available. See cf::lock_acquire.
237		304
…		…
240	Wait until the given lock is available and then acquires it and returns	307	Wait until the given lock is available and then acquires it and returns
241	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	308	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
242	for example when the coroutine gets canceled), the lock is automatically	309	for example when the coroutine gets canceled), the lock is automatically
243	returned.	310	returned.
244		311
		312	Locks are *not* recursive, locking from the same coro twice results in a
		313	deadlocked coro.
		314
245	Lock names should begin with a unique identifier (for example, cf::map::find	315	Lock names should begin with a unique identifier (for example, cf::map::find
246	uses map_find and cf::map::load uses map_load).	316	uses map_find and cf::map::load uses map_load).
247		317
		318	=item $locked = cf::lock_active $string
		319
		320	Return true if the lock is currently active, i.e. somebody has locked it.
		321
248	=cut	322	=cut
249		323
250	our %LOCK;	324	our %LOCK;
		325	our %LOCKER;#d#
251		326
252	sub lock_wait($) {	327	sub lock_wait($) {
253	my ($key) = @_;	328	my ($key) = @_;
		329
		330	if ($LOCKER{$key} == $Coro::current) {#d#
		331	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		332	return;#d#
		333	}#d#
254		334
255	# wait for lock, if any	335	# wait for lock, if any
256	while ($LOCK{$key}) {	336	while ($LOCK{$key}) {
257	push @{ $LOCK{$key} }, $Coro::current;	337	push @{ $LOCK{$key} }, $Coro::current;
258	Coro::schedule;	338	Coro::schedule;
…		…
264		344
265	# wait, to be sure we are not locked	345	# wait, to be sure we are not locked
266	lock_wait $key;	346	lock_wait $key;
267		347
268	$LOCK{$key} = [];	348	$LOCK{$key} = [];
		349	$LOCKER{$key} = $Coro::current;#d#
269		350
270	Coro::guard {	351	Coro::guard {
		352	delete $LOCKER{$key};#d#
271	# wake up all waiters, to be on the safe side	353	# wake up all waiters, to be on the safe side
272	$_->ready for @{ delete $LOCK{$key} };	354	$_->ready for @{ delete $LOCK{$key} };
273	}	355	}
274	}	356	}
275		357
		358	sub lock_active($) {
		359	my ($key) = @_;
		360
		361	! ! $LOCK{$key}
		362	}
		363
276	sub freeze_mainloop {	364	sub freeze_mainloop {
277	return unless $TICK_WATCHER->is_active;	365	tick_inhibit_inc;
278		366
279	my $guard = Coro::guard {	367	Coro::guard \&tick_inhibit_dec;
280	$TICK_WATCHER->start;	368	}
		369
		370	=item cf::periodic $interval, $cb
		371
		372	Like EV::periodic, but randomly selects a starting point so that the actions
		373	get spread over timer.
		374
		375	=cut
		376
		377	sub periodic($$) {
		378	my ($interval, $cb) = @_;
		379
		380	my $start = rand List::Util::min 180, $interval;
		381
		382	EV::periodic $start, $interval, 0, $cb
		383	}
		384
		385	=item cf::get_slot $time[, $priority[, $name]]
		386
		387	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		388	This call blocks and returns only when you have at least C<$time> seconds
		389	of cpu time till the next tick. The slot is only valid till the next cede.
		390
		391	The optional C<$name> can be used to identify the job to run. It might be
		392	used for statistical purposes and should identify the same time-class.
		393
		394	Useful for short background jobs.
		395
		396	=cut
		397
		398	our @SLOT_QUEUE;
		399	our $SLOT_QUEUE;
		400
		401	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		402	$SLOT_QUEUE = Coro::async {
		403	$Coro::current->desc ("timeslot manager");
		404
		405	my $signal = new Coro::Signal;
		406
		407	while () {
		408	next_job:
		409	my $avail = cf::till_tick;
		410	if ($avail > 0.01) {
		411	for (0 .. $#SLOT_QUEUE) {
		412	if ($SLOT_QUEUE[$_][0] < $avail) {
		413	my $job = splice @SLOT_QUEUE, $_, 1, ();
		414	$job->[2]->send;
		415	Coro::cede;
		416	goto next_job;
		417	}
		418	}
		419	}
		420
		421	if (@SLOT_QUEUE) {
		422	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		423	push @cf::WAIT_FOR_TICK, $signal;
		424	$signal->wait;
		425	} else {
		426	Coro::schedule;
		427	}
281	};	428	}
282	$TICK_WATCHER->stop;	429	};
283	$guard	430
		431	sub get_slot($;$$) {
		432	my ($time, $pri, $name) = @_;
		433
		434	$time = $TICK * .6 if $time > $TICK * .6;
		435	my $sig = new Coro::Signal;
		436
		437	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		438	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		439	$SLOT_QUEUE->ready;
		440	$sig->wait;
284	}	441	}
285		442
286	=item cf::async { BLOCK }	443	=item cf::async { BLOCK }
287		444
288	Currently the same as Coro::async_pool, meaning you cannot use	445	Currently the same as Coro::async_pool, meaning you cannot use
…		…
293		450
294	BEGIN { *async = \&Coro::async_pool }	451	BEGIN { *async = \&Coro::async_pool }
295		452
296	=item cf::sync_job { BLOCK }	453	=item cf::sync_job { BLOCK }
297		454
298	The design of crossfire+ requires that the main coro ($Coro::main) is	455	The design of Deliantra requires that the main coroutine ($Coro::main)
299	always able to handle events or runnable, as crossfire+ is only partly	456	is always able to handle events or runnable, as Deliantra is only
300	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	457	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		458	acceptable.
301		459
302	If it must be done, put the blocking parts into C<sync_job>. This will run	460	If it must be done, put the blocking parts into C<sync_job>. This will run
303	the given BLOCK in another coroutine while waiting for the result. The	461	the given BLOCK in another coroutine while waiting for the result. The
304	server will be frozen during this time, so the block should either finish	462	server will be frozen during this time, so the block should either finish
305	fast or be very important.	463	fast or be very important.
…		…
308		466
309	sub sync_job(&) {	467	sub sync_job(&) {
310	my ($job) = @_;	468	my ($job) = @_;
311		469
312	if ($Coro::current == $Coro::main) {	470	if ($Coro::current == $Coro::main) {
		471	my $time = EV::time;
		472
313	# this is the main coro, too bad, we have to block	473	# this is the main coro, too bad, we have to block
314	# till the operation succeeds, freezing the server :/	474	# till the operation succeeds, freezing the server :/
315		475
316	# TODO: use suspend/resume instead	476	LOG llevError, Carp::longmess "sync job";#d#
317	# (but this is cancel-safe)	477
318	my $freeze_guard = freeze_mainloop;	478	my $freeze_guard = freeze_mainloop;
319		479
320	my $busy = 1;	480	my $busy = 1;
321	my @res;	481	my @res;
322		482
323	(async {	483	(async {
		484	$Coro::current->desc ("sync job coro");
324	@res = eval { $job->() };	485	@res = eval { $job->() };
325	warn $@ if $@;	486	warn $@ if $@;
326	undef $busy;	487	undef $busy;
327	})->prio (Coro::PRIO_MAX);	488	})->prio (Coro::PRIO_MAX);
328		489
329	while ($busy) {	490	while ($busy) {
330	Coro::cede or Event::one_event;	491	if (Coro::nready) {
		492	Coro::cede_notself;
		493	} else {
		494	EV::loop EV::LOOP_ONESHOT;
331	}	495	}
		496	}
		497
		498	my $time = EV::time - $time;
		499
		500	$TICK_START += $time; # do not account sync jobs to server load
332		501
333	wantarray ? @res : $res[0]	502	wantarray ? @res : $res[0]
334	} else {	503	} else {
335	# we are in another coroutine, how wonderful, everything just works	504	# we are in another coroutine, how wonderful, everything just works
336		505
…		…
356	$EXT_CORO{$coro+0} = $coro;	525	$EXT_CORO{$coro+0} = $coro;
357		526
358	$coro	527	$coro
359	}	528	}
360		529
361	sub write_runtime {	530	=item fork_call { }, $args
362	my $guard = cf::lock_acquire "write_runtime";
363		531
364	my $runtime = cf::localdir . "/runtime";	532	Executes the given code block with the given arguments in a seperate
		533	process, returning the results. Everything must be serialisable with
		534	Coro::Storable. May, of course, block. Note that the executed sub may
		535	never block itself or use any form of event handling.
365		536
366	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	537	=cut
367	or return;
368		538
369	my $value = $cf::RUNTIME + 90 + 10;	539	sub fork_call(&@) {
370	# 10 is the runtime save interval, for a monotonic clock	540	my ($cb, @args) = @_;
371	# 60 allows for the watchdog to kill the server.
372		541
373	(aio_write $fh, 0, (length $value), $value, 0) <= 0	542	# we seemingly have to make a local copy of the whole thing,
374	and return;	543	# otherwise perl prematurely frees the stuff :/
		544	# TODO: investigate and fix (likely this will be rather laborious)
375		545
376	# always fsync - this file is important	546	my @res = Coro::Util::fork_eval {
377	aio_fsync $fh	547	reset_signals;
378	and return;	548	&$cb
		549	}, @args;
379		550
380	close $fh	551	wantarray ? @res : $res[-1]
381	or return;	552	}
382		553
383	aio_rename "$runtime~", $runtime	554	=item $coin = coin_from_name $name
384	and return;
385		555
		556	=cut
		557
		558	our %coin_alias = (
		559	"silver" => "silvercoin",
		560	"silvercoin" => "silvercoin",
		561	"silvercoins" => "silvercoin",
		562	"gold" => "goldcoin",
		563	"goldcoin" => "goldcoin",
		564	"goldcoins" => "goldcoin",
		565	"platinum" => "platinacoin",
		566	"platinumcoin" => "platinacoin",
		567	"platinumcoins" => "platinacoin",
		568	"platina" => "platinacoin",
		569	"platinacoin" => "platinacoin",
		570	"platinacoins" => "platinacoin",
		571	"royalty" => "royalty",
		572	"royalties" => "royalty",
		573	);
		574
		575	sub coin_from_name($) {
		576	$coin_alias{$_[0]}
		577	? cf::arch::find $coin_alias{$_[0]}
		578	: undef
		579	}
		580
		581	=item $value = cf::db_get $family => $key
		582
		583	Returns a single value from the environment database.
		584
		585	=item cf::db_put $family => $key => $value
		586
		587	Stores the given C<$value> in the family. It can currently store binary
		588	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		589
		590	=item $db = cf::db_table "name"
		591
		592	Create and/or open a new database table. The string must not be "db" and must be unique
		593	within each server.
		594
		595	=cut
		596
		597	sub db_table($) {
		598	my ($name) = @_;
		599	my $db = BDB::db_create $DB_ENV;
		600
		601	eval {
		602	$db->set_flags (BDB::CHKSUM);
		603
		604	utf8::encode $name;
		605	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		606	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		607	cf::cleanup "db_open(db): $!" if $!;
		608	};
		609	cf::cleanup "db_open(db): $@" if $@;
		610
		611	$db
		612	}
		613
		614	our $DB;
		615
		616	sub db_init {
		617	cf::sync_job {
		618	$DB ||= db_table "db";
		619	};
		620	}
		621
		622	sub db_get($$) {
		623	my $key = "$_[0]/$_[1]";
		624
		625	cf::sync_job {
		626	BDB::db_get $DB, undef, $key, my $data;
		627
		628	$! ? ()
		629	: $data
386	1	630	}
		631	}
		632
		633	sub db_put($$$) {
		634	BDB::dbreq_pri 4;
		635	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		636	}
		637
		638	=item cf::cache $id => [$paths...], $processversion => $process
		639
		640	Generic caching function that returns the value of the resource $id,
		641	caching and regenerating as required.
		642
		643	This function can block.
		644
		645	=cut
		646
		647	sub cache {
		648	my ($id, $src, $processversion, $process) = @_;
		649
		650	my $meta =
		651	join "\x00",
		652	$processversion,
		653	map {
		654	aio_stat $_
		655	and Carp::croak "$_: $!";
		656
		657	($_, (stat _)[7,9])
		658	} @$src;
		659
		660	my $dbmeta = db_get cache => "$id/meta";
		661	if ($dbmeta ne $meta) {
		662	# changed, we may need to process
		663
		664	my @data;
		665	my $md5;
		666
		667	for (0 .. $#$src) {
		668	0 <= aio_load $src->[$_], $data[$_]
		669	or Carp::croak "$src->[$_]: $!";
		670	}
		671
		672	# if processing is expensive, check
		673	# checksum first
		674	if (1) {
		675	$md5 =
		676	join "\x00",
		677	$processversion,
		678	map {
		679	cf::cede_to_tick;
		680	($src->[$_], Digest::MD5::md5_hex $data[$_])
		681	} 0.. $#$src;
		682
		683
		684	my $dbmd5 = db_get cache => "$id/md5";
		685	if ($dbmd5 eq $md5) {
		686	db_put cache => "$id/meta", $meta;
		687
		688	return db_get cache => "$id/data";
		689	}
		690	}
		691
		692	my $t1 = Time::HiRes::time;
		693	my $data = $process->(\@data);
		694	my $t2 = Time::HiRes::time;
		695
		696	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		697
		698	db_put cache => "$id/data", $data;
		699	db_put cache => "$id/md5" , $md5;
		700	db_put cache => "$id/meta", $meta;
		701
		702	return $data;
		703	}
		704
		705	db_get cache => "$id/data"
		706	}
		707
		708	=item cf::datalog type => key => value, ...
		709
		710	Log a datalog packet of the given type with the given key-value pairs.
		711
		712	=cut
		713
		714	sub datalog($@) {
		715	my ($type, %kv) = @_;
		716	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
387	}	717	}
388		718
389	=back	719	=back
390		720
391	=cut	721	=cut
…		…
398	attach callbacks/event handlers (a collection of which is called an "attachment")	728	attach callbacks/event handlers (a collection of which is called an "attachment")
399	to it. All such attachable objects support the following methods.	729	to it. All such attachable objects support the following methods.
400		730
401	In the following description, CLASS can be any of C<global>, C<object>	731	In the following description, CLASS can be any of C<global>, C<object>
402	C<player>, C<client> or C<map> (i.e. the attachable objects in	732	C<player>, C<client> or C<map> (i.e. the attachable objects in
403	crossfire+).	733	Deliantra).
404		734
405	=over 4	735	=over 4
406		736
407	=item $attachable->attach ($attachment, key => $value...)	737	=item $attachable->attach ($attachment, key => $value...)
408		738
…		…
571	$registry = $CB_TYPE[$object_type] ||= [];	901	$registry = $CB_TYPE[$object_type] ||= [];
572		902
573	} elsif ($type eq "subtype") {	903	} elsif ($type eq "subtype") {
574	defined $object_type or Carp::croak "subtype specified without type";	904	defined $object_type or Carp::croak "subtype specified without type";
575	my $object_subtype = shift @arg;	905	my $object_subtype = shift @arg;
576	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	906	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
577		907
578	} elsif ($type eq "package") {	908	} elsif ($type eq "package") {
579	my $pkg = shift @arg;	909	my $pkg = shift @arg;
580		910
581	while (my ($name, $id) = each %cb_id) {	911	while (my ($name, $id) = each %cb_id) {
…		…
610	_attach $registry, $klass, @attach;	940	_attach $registry, $klass, @attach;
611	}	941	}
612		942
613	$obj->{$name} = \%arg;	943	$obj->{$name} = \%arg;
614	} else {	944	} else {
615	warn "object uses attachment '$name' that is not available, postponing.\n";	945	warn "object uses attachment '$name' which is not available, postponing.\n";
616	}	946	}
617		947
618	$obj->{_attachment}{$name} = undef;	948	$obj->{_attachment}{$name} = undef;
619	}	949	}
620		950
…		…
622	if (ref $_[0]) {	952	if (ref $_[0]) {
623	_object_attach @_;	953	_object_attach @_;
624	} else {	954	} else {
625	_attach shift->_attach_registry, @_;	955	_attach shift->_attach_registry, @_;
626	}	956	}
		957	_recalc_want;
627	};	958	};
628		959
629	# all those should be optimised	960	# all those should be optimised
630	sub cf::attachable::detach {	961	sub cf::attachable::detach {
631	my ($obj, $name) = @_;	962	my ($obj, $name) = @_;
…		…
634	delete $obj->{_attachment}{$name};	965	delete $obj->{_attachment}{$name};
635	reattach ($obj);	966	reattach ($obj);
636	} else {	967	} else {
637	Carp::croak "cannot, currently, detach class attachments";	968	Carp::croak "cannot, currently, detach class attachments";
638	}	969	}
		970	_recalc_want;
639	};	971	};
640		972
641	sub cf::attachable::attached {	973	sub cf::attachable::attached {
642	my ($obj, $name) = @_;	974	my ($obj, $name) = @_;
643		975
…		…
658	";	990	";
659	die if $@;	991	die if $@;
660	}	992	}
661		993
662	our $override;	994	our $override;
663	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	995	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
664		996
665	sub override {	997	sub override {
666	$override = 1;	998	$override = 1;
667	@invoke_results = ();	999	@INVOKE_RESULTS = (@_);
668	}	1000	}
669		1001
670	sub do_invoke {	1002	sub do_invoke {
671	my $event = shift;	1003	my $event = shift;
672	my $callbacks = shift;	1004	my $callbacks = shift;
673		1005
674	@invoke_results = ();	1006	@INVOKE_RESULTS = ();
675		1007
676	local $override;	1008	local $override;
677		1009
678	for (@$callbacks) {	1010	for (@$callbacks) {
679	eval { &{$_->[1]} };	1011	eval { &{$_->[1]} };
…		…
688	}	1020	}
689		1021
690	0	1022	0
691	}	1023	}
692		1024
693	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1025	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
694		1026
695	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1027	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
696		1028
697	Generate an object-specific event with the given arguments.	1029	Generate an object-specific event with the given arguments.
698		1030
699	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1031	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
700	removed in future versions), and there is no public API to access override	1032	removed in future versions), and there is no public API to access override
701	results (if you must, access C<@cf::invoke_results> directly).	1033	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
702		1034
703	=back	1035	=back
704		1036
705	=cut	1037	=cut
706		1038
707	#############################################################################	1039	#############################################################################
708	# object support	1040	# object support
		1041
		1042	sub _object_equal($$);
		1043	sub _object_equal($$) {
		1044	my ($a, $b) = @_;
		1045
		1046	return 0 unless (ref $a) eq (ref $b);
		1047
		1048	if ("HASH" eq ref $a) {
		1049	my @ka = keys %$a;
		1050	my @kb = keys %$b;
		1051
		1052	return 0 if @ka != @kb;
		1053
		1054	for (0 .. $#ka) {
		1055	return 0 unless $ka[$_] eq $kb[$_];
		1056	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1057	}
		1058
		1059	} elsif ("ARRAY" eq ref $a) {
		1060
		1061	return 0 if @$a != @$b;
		1062
		1063	for (0 .. $#$a) {
		1064	return 0 unless _object_equal $a->[$_], $b->[$_];
		1065	}
		1066
		1067	} elsif ($a ne $b) {
		1068	return 0;
		1069	}
		1070
		1071	1
		1072	}
		1073
		1074	our $SLOW_MERGES;#d#
		1075	sub _can_merge {
		1076	my ($ob1, $ob2) = @_;
		1077
		1078	++$SLOW_MERGES;#d#
		1079
		1080	# we do the slow way here
		1081	return _object_equal $ob1, $ob2
		1082	}
709		1083
710	sub reattach {	1084	sub reattach {
711	# basically do the same as instantiate, without calling instantiate	1085	# basically do the same as instantiate, without calling instantiate
712	my ($obj) = @_;	1086	my ($obj) = @_;
713		1087
…		…
734	cf::attachable->attach (	1108	cf::attachable->attach (
735	prio => -1000000,	1109	prio => -1000000,
736	on_instantiate => sub {	1110	on_instantiate => sub {
737	my ($obj, $data) = @_;	1111	my ($obj, $data) = @_;
738		1112
739	$data = from_json $data;	1113	$data = decode_json $data;
740		1114
741	for (@$data) {	1115	for (@$data) {
742	my ($name, $args) = @$_;	1116	my ($name, $args) = @$_;
743		1117
744	$obj->attach ($name, %{$args || {} });	1118	$obj->attach ($name, %{$args || {} });
…		…
760	sub object_freezer_save {	1134	sub object_freezer_save {
761	my ($filename, $rdata, $objs) = @_;	1135	my ($filename, $rdata, $objs) = @_;
762		1136
763	sync_job {	1137	sync_job {
764	if (length $$rdata) {	1138	if (length $$rdata) {
		1139	utf8::decode (my $decname = $filename);
765	warn sprintf "saving %s (%d,%d)\n",	1140	warn sprintf "saving %s (%d,%d)\n",
766	$filename, length $$rdata, scalar @$objs;	1141	$decname, length $$rdata, scalar @$objs;
767		1142
768	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1143	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
769	chmod SAVE_MODE, $fh;	1144	chmod SAVE_MODE, $fh;
770	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1145	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
771	aio_fsync $fh if $cf::USE_FSYNC;	1146	aio_fsync $fh if $cf::USE_FSYNC;
772	close $fh;	1147	close $fh;
773		1148
774	if (@$objs) {	1149	if (@$objs) {
775	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1150	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
776	chmod SAVE_MODE, $fh;	1151	chmod SAVE_MODE, $fh;
777	my $data = Storable::nfreeze { version => 1, objs => $objs };	1152	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
778	aio_write $fh, 0, (length $data), $data, 0;	1153	aio_write $fh, 0, (length $data), $data, 0;
779	aio_fsync $fh if $cf::USE_FSYNC;	1154	aio_fsync $fh if $cf::USE_FSYNC;
780	close $fh;	1155	close $fh;
781	aio_rename "$filename.pst~", "$filename.pst";	1156	aio_rename "$filename.pst~", "$filename.pst";
782	}	1157	}
…		…
790	}	1165	}
791	} else {	1166	} else {
792	aio_unlink $filename;	1167	aio_unlink $filename;
793	aio_unlink "$filename.pst";	1168	aio_unlink "$filename.pst";
794	}	1169	}
795	}	1170	};
796	}	1171	}
797		1172
798	sub object_freezer_as_string {	1173	sub object_freezer_as_string {
799	my ($rdata, $objs) = @_;	1174	my ($rdata, $objs) = @_;
800		1175
…		…
812	or return;	1187	or return;
813		1188
814	unless (aio_stat "$filename.pst") {	1189	unless (aio_stat "$filename.pst") {
815	(aio_load "$filename.pst", $av) >= 0	1190	(aio_load "$filename.pst", $av) >= 0
816	or return;	1191	or return;
		1192
817	$av = eval { (Storable::thaw $av)->{objs} };	1193	my $st = eval { Coro::Storable::thaw $av };
		1194	$av = $st->{objs};
818	}	1195	}
819		1196
		1197	utf8::decode (my $decname = $filename);
820	warn sprintf "loading %s (%d)\n",	1198	warn sprintf "loading %s (%d,%d)\n",
821	$filename, length $data, scalar @{$av || []};#d#	1199	$decname, length $data, scalar @{$av || []};
		1200
822	return ($data, $av);	1201	($data, $av)
823	}	1202	}
		1203
		1204	=head2 COMMAND CALLBACKS
		1205
		1206	=over 4
		1207
		1208	=cut
824		1209
825	#############################################################################	1210	#############################################################################
826	# command handling &c	1211	# command handling &c
827		1212
828	=item cf::register_command $name => \&callback($ob,$args);	1213	=item cf::register_command $name => \&callback($ob,$args);
…		…
841	push @{ $COMMAND{$name} }, [$caller, $cb];	1226	push @{ $COMMAND{$name} }, [$caller, $cb];
842	}	1227	}
843		1228
844	=item cf::register_extcmd $name => \&callback($pl,$packet);	1229	=item cf::register_extcmd $name => \&callback($pl,$packet);
845		1230
846	Register a callbackf ro execution when the client sends an extcmd packet.	1231	Register a callback for execution when the client sends an (synchronous)
		1232	extcmd packet. Ext commands will be processed in the order they are
		1233	received by the server, like other user commands. The first argument is
		1234	the logged-in player. Ext commands can only be processed after a player
		1235	has logged in successfully.
847		1236
848	If the callback returns something, it is sent back as if reply was being	1237	If the callback returns something, it is sent back as if reply was being
849	called.	1238	called.
850		1239
		1240	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1241
		1242	Register a callback for execution when the client sends an (asynchronous)
		1243	exticmd packet. Exti commands are processed by the server as soon as they
		1244	are received, i.e. out of order w.r.t. other commands. The first argument
		1245	is a client socket. Exti commands can be received anytime, even before
		1246	log-in.
		1247
		1248	If the callback returns something, it is sent back as if reply was being
		1249	called.
		1250
851	=cut	1251	=cut
852		1252
853	sub register_extcmd {	1253	sub register_extcmd {
854	my ($name, $cb) = @_;	1254	my ($name, $cb) = @_;
855		1255
856	$EXTCMD{$name} = $cb;	1256	$EXTCMD{$name} = $cb;
		1257	}
		1258
		1259	sub register_exticmd {
		1260	my ($name, $cb) = @_;
		1261
		1262	$EXTICMD{$name} = $cb;
857	}	1263	}
858		1264
859	cf::player->attach (	1265	cf::player->attach (
860	on_command => sub {	1266	on_command => sub {
861	my ($pl, $name, $params) = @_;	1267	my ($pl, $name, $params) = @_;
…		…
870	cf::override;	1276	cf::override;
871	},	1277	},
872	on_extcmd => sub {	1278	on_extcmd => sub {
873	my ($pl, $buf) = @_;	1279	my ($pl, $buf) = @_;
874		1280
875	my $msg = eval { from_json $buf };	1281	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
876		1282
877	if (ref $msg) {	1283	if (ref $msg) {
		1284	my ($type, $reply, @payload) =
		1285	"ARRAY" eq ref $msg
		1286	? @$msg
		1287	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1288
		1289	my @reply;
		1290
878	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1291	if (my $cb = $EXTCMD{$type}) {
879	if (my %reply = $cb->($pl, $msg)) {	1292	@reply = $cb->($pl, @payload);
880	$pl->ext_reply ($msg->{msgid}, %reply);
881	}
882	}	1293	}
		1294
		1295	$pl->ext_reply ($reply, @reply)
		1296	if $reply;
		1297
883	} else {	1298	} else {
884	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1299	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
885	}	1300	}
886		1301
887	cf::override;	1302	cf::override;
888	},	1303	},
889	);	1304	);
890		1305
891	sub load_extension {
892	my ($path) = @_;
893
894	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
895	my $base = $1;
896	my $pkg = $1;
897	$pkg =~ s/[^[:word:]]/_/g;
898	$pkg = "ext::$pkg";
899
900	warn "... loading '$path' into '$pkg'\n";
901
902	open my $fh, "<:utf8", $path
903	or die "$path: $!";
904
905	my $source =
906	"package $pkg; use strict; use utf8;\n"
907	. "#line 1 \"$path\"\n{\n"
908	. (do { local $/; <$fh> })
909	. "\n};\n1";
910
911	unless (eval $source) {
912	my $msg = $@ ? "$path: $@\n"
913	: "extension disabled.\n";
914	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
915	warn $@;
916	warn "mandatory extension failed to load, exiting.\n";
917	exit 1;
918	}
919	die $@;
920	}
921
922	push @EXTS, $pkg;
923	}
924
925	sub load_extensions {	1306	sub load_extensions {
		1307	cf::sync_job {
		1308	my %todo;
		1309
926	for my $ext (<$LIBDIR/*.ext>) {	1310	for my $path (<$LIBDIR/*.ext>) {
927	next unless -r $ext;	1311	next unless -r $path;
928	eval {	1312
929	load_extension $ext;	1313	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1314	my $base = $1;
		1315	my $pkg = $1;
		1316	$pkg =~ s/[^[:word:]]/_/g;
		1317	$pkg = "ext::$pkg";
		1318
		1319	open my $fh, "<:utf8", $path
		1320	or die "$path: $!";
		1321
		1322	my $source = do { local $/; <$fh> };
		1323
		1324	my %ext = (
		1325	path => $path,
		1326	base => $base,
		1327	pkg => $pkg,
		1328	);
		1329
		1330	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1331	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1332
		1333	$ext{source} =
		1334	"package $pkg; use strict; use utf8;\n"
		1335	. "#line 1 \"$path\"\n{\n"
		1336	. $source
		1337	. "\n};\n1";
		1338
		1339	$todo{$base} = \%ext;
		1340	}
		1341
		1342	my %done;
		1343	while (%todo) {
		1344	my $progress;
		1345
		1346	while (my ($k, $v) = each %todo) {
		1347	for (split /,\s*/, $v->{meta}{depends}) {
		1348	goto skip
		1349	unless exists $done{$_};
		1350	}
		1351
		1352	warn "... loading '$k' into '$v->{pkg}'\n";
		1353
		1354	unless (eval $v->{source}) {
		1355	my $msg = $@ ? "$v->{path}: $@\n"
		1356	: "$v->{base}: extension inactive.\n";
		1357
		1358	if (exists $v->{meta}{mandatory}) {
		1359	warn $msg;
		1360	cf::cleanup "mandatory extension failed to load, exiting.";
		1361	}
		1362
		1363	warn $msg;
		1364	}
		1365
		1366	$done{$k} = delete $todo{$k};
		1367	push @EXTS, $v->{pkg};
		1368	$progress = 1;
930	1	1369	}
931	} or warn "$ext not loaded: $@";	1370
		1371	skip:
		1372	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1373	unless $progress;
		1374	}
932	}	1375	};
933	}	1376	}
934		1377
935	#############################################################################	1378	#############################################################################
936		1379
		1380	=back
		1381
937	=head2 CORE EXTENSIONS	1382	=head2 CORE EXTENSIONS
938		1383
939	Functions and methods that extend core crossfire objects.	1384	Functions and methods that extend core crossfire objects.
940		1385
941	=cut	1386	=cut
…		…
946		1391
947	=head3 cf::player	1392	=head3 cf::player
948		1393
949	=over 4	1394	=over 4
950		1395
		1396	=item cf::player::num_playing
		1397
		1398	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1399
		1400	=cut
		1401
		1402	sub num_playing {
		1403	scalar grep
		1404	$_->ob->map
		1405	&& !$_->hidden
		1406	&& !$_->ob->flag (cf::FLAG_WIZ),
		1407	cf::player::list
		1408	}
		1409
951	=item cf::player::find $login	1410	=item cf::player::find $login
952		1411
953	Returns the given player object, loading it if necessary (might block).	1412	Returns the given player object, loading it if necessary (might block).
954		1413
955	=cut	1414	=cut
956		1415
957	sub playerdir($) {	1416	sub playerdir($) {
958	cf::localdir	1417	"$PLAYERDIR/"
959	. "/"
960	. cf::playerdir
961	. "/"
962	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1418	. (ref $_[0] ? $_[0]->ob->name : $_[0])
963	}	1419	}
964		1420
965	sub path($) {	1421	sub path($) {
966	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1422	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
967		1423
968	(playerdir $login) . "/$login.pl"	1424	(playerdir $login) . "/playerdata"
969	}	1425	}
970		1426
971	sub find_active($) {	1427	sub find_active($) {
972	$cf::PLAYER{$_[0]}	1428	$cf::PLAYER{$_[0]}
973	and $cf::PLAYER{$_[0]}->active	1429	and $cf::PLAYER{$_[0]}->active
…		…
986	my $login = $_[0];	1442	my $login = $_[0];
987		1443
988	my $guard = cf::lock_acquire "user_find:$login";	1444	my $guard = cf::lock_acquire "user_find:$login";
989		1445
990	$cf::PLAYER{$_[0]} || do {	1446	$cf::PLAYER{$_[0]} || do {
991	my $pl = load_pl path $login	1447	# rename old playerfiles to new ones
		1448	#TODO: remove when no longer required
		1449	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1450	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1451	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1452	aio_unlink +(playerdir $login) . "/$login.pl";
		1453
		1454	my $f = new_from_file cf::object::thawer path $login
992	or return;	1455	or return;
		1456
		1457	my $pl = cf::player::load_pl $f
		1458	or return;
		1459	local $cf::PLAYER_LOADING{$login} = $pl;
		1460	$f->resolve_delayed_derefs;
993	$cf::PLAYER{$login} = $pl	1461	$cf::PLAYER{$login} = $pl
994	}	1462	}
995	}	1463	}
996	}	1464	}
997		1465
…		…
1007		1475
1008	aio_mkdir playerdir $pl, 0770;	1476	aio_mkdir playerdir $pl, 0770;
1009	$pl->{last_save} = $cf::RUNTIME;	1477	$pl->{last_save} = $cf::RUNTIME;
1010		1478
1011	$pl->save_pl ($path);	1479	$pl->save_pl ($path);
1012	Coro::cede;	1480	cf::cede_to_tick;
1013	}	1481	}
1014		1482
1015	sub new($) {	1483	sub new($) {
1016	my ($login) = @_;	1484	my ($login) = @_;
1017		1485
…		…
1021	$self->{deny_save} = 1;	1489	$self->{deny_save} = 1;
1022		1490
1023	$cf::PLAYER{$login} = $self;	1491	$cf::PLAYER{$login} = $self;
1024		1492
1025	$self	1493	$self
		1494	}
		1495
		1496	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1497
		1498	=cut
		1499
		1500	sub send_msg {
		1501	my $ns = shift->ns
		1502	or return;
		1503	$ns->send_msg (@_);
1026	}	1504	}
1027		1505
1028	=item $pl->quit_character	1506	=item $pl->quit_character
1029		1507
1030	Nukes the player without looking back. If logged in, the connection will	1508	Nukes the player without looking back. If logged in, the connection will
…		…
1079	while and may block, so not sync_job-capable, ever.	1557	while and may block, so not sync_job-capable, ever.
1080		1558
1081	=cut	1559	=cut
1082		1560
1083	sub list_logins {	1561	sub list_logins {
1084	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1562	my $dirs = aio_readdir $PLAYERDIR
1085	or return [];	1563	or return [];
1086		1564
1087	my @logins;	1565	my @logins;
1088		1566
1089	for my $login (@$dirs) {	1567	for my $login (@$dirs) {
		1568	my $path = path $login;
		1569
		1570	# a .pst is a dead give-away for a valid player
		1571	unless (-e "$path.pst") {
1090	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1572	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1091	aio_read $fh, 0, 512, my $buf, 0 or next;	1573	aio_read $fh, 0, 512, my $buf, 0 or next;
1092	$buf !~ /^password -------------$/m or next; # official not-valid tag	1574	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1575	}
1093		1576
1094	utf8::decode $login;	1577	utf8::decode $login;
1095	push @logins, $login;	1578	push @logins, $login;
1096	}	1579	}
1097		1580
…		…
1124	}	1607	}
1125		1608
1126	\@paths	1609	\@paths
1127	}	1610	}
1128		1611
		1612	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1613
		1614	Expand crossfire pod fragments into protocol xml.
		1615
		1616	=cut
		1617
		1618	use re 'eval';
		1619
		1620	my $group;
		1621	my $interior; $interior = qr{
		1622	# match a pod interior sequence sans C<< >>
		1623	(?:
		1624	\ (.*?)\ (?{ $group = $^N })
		1625	| < (??{$interior}) >
		1626	)
		1627	}x;
		1628
		1629	sub expand_cfpod {
		1630	my ($self, $pod) = @_;
		1631
		1632	my $xml;
		1633
		1634	while () {
		1635	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1636	$group = $1;
		1637
		1638	$group =~ s/&/&amp;/g;
		1639	$group =~ s/</&lt;/g;
		1640
		1641	$xml .= $group;
		1642	} elsif ($pod =~ m%\G
		1643	([BCGHITU])
		1644	<
		1645	(?:
		1646	([^<>]*) (?{ $group = $^N })
		1647	| < $interior >
		1648	)
		1649	>
		1650	%gcsx
		1651	) {
		1652	my ($code, $data) = ($1, $group);
		1653
		1654	if ($code eq "B") {
		1655	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1656	} elsif ($code eq "I") {
		1657	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1658	} elsif ($code eq "U") {
		1659	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1660	} elsif ($code eq "C") {
		1661	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1662	} elsif ($code eq "T") {
		1663	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1664	} elsif ($code eq "G") {
		1665	my ($male, $female) = split /\|/, $data;
		1666	$data = $self->gender ? $female : $male;
		1667	$xml .= expand_cfpod ($self, $data);
		1668	} elsif ($code eq "H") {
		1669	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1670	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1671	"")
		1672	[$self->{hintmode}];
		1673	} else {
		1674	$xml .= "error processing '$code($data)' directive";
		1675	}
		1676	} else {
		1677	if ($pod =~ /\G(.+)/) {
		1678	warn "parse error while expanding $pod (at $1)";
		1679	}
		1680	last;
		1681	}
		1682	}
		1683
		1684	for ($xml) {
		1685	# create single paragraphs (very hackish)
		1686	s/(?<=\S)\n(?=\w)/ /g;
		1687
		1688	# compress some whitespace
		1689	s/\s+\n/\n/g; # ws line-ends
		1690	s/\n\n+/\n/g; # double lines
		1691	s/^\n+//; # beginning lines
		1692	s/\n+$//; # ending lines
		1693	}
		1694
		1695	$xml
		1696	}
		1697
		1698	no re 'eval';
		1699
		1700	sub hintmode {
		1701	$_[0]{hintmode} = $_[1] if @_ > 1;
		1702	$_[0]{hintmode}
		1703	}
		1704
1129	=item $player->ext_reply ($msgid, $msgtype, %msg)	1705	=item $player->ext_reply ($msgid, @msg)
1130		1706
1131	Sends an ext reply to the player.	1707	Sends an ext reply to the player.
1132		1708
1133	=cut	1709	=cut
1134		1710
1135	sub ext_reply($$$%) {	1711	sub ext_reply($$@) {
1136	my ($self, $id, %msg) = @_;	1712	my ($self, $id, @msg) = @_;
1137		1713
1138	$msg{msgid} = $id;	1714	$self->ns->ext_reply ($id, @msg)
1139
1140	$self->send ("ext " . cf::to_json \%msg);
1141	}	1715	}
1142		1716
1143	package cf;	1717	=item $player->ext_msg ($type, @msg)
		1718
		1719	Sends an ext event to the client.
		1720
		1721	=cut
		1722
		1723	sub ext_msg($$@) {
		1724	my ($self, $type, @msg) = @_;
		1725
		1726	$self->ns->ext_msg ($type, @msg);
		1727	}
		1728
		1729	=head3 cf::region
		1730
		1731	=over 4
		1732
		1733	=cut
		1734
		1735	package cf::region;
		1736
		1737	=item cf::region::find_by_path $path
		1738
		1739	Tries to decuce the likely region for a map knowing only its path.
		1740
		1741	=cut
		1742
		1743	sub find_by_path($) {
		1744	my ($path) = @_;
		1745
		1746	my ($match, $specificity);
		1747
		1748	for my $region (list) {
		1749	if ($region->{match} && $path =~ $region->{match}) {
		1750	($match, $specificity) = ($region, $region->specificity)
		1751	if $region->specificity > $specificity;
		1752	}
		1753	}
		1754
		1755	$match
		1756	}
1144		1757
1145	=back	1758	=back
1146
1147		1759
1148	=head3 cf::map	1760	=head3 cf::map
1149		1761
1150	=over 4	1762	=over 4
1151		1763
…		…
1163	our $MAX_RESET = 3600;	1775	our $MAX_RESET = 3600;
1164	our $DEFAULT_RESET = 3000;	1776	our $DEFAULT_RESET = 3000;
1165		1777
1166	sub generate_random_map {	1778	sub generate_random_map {
1167	my ($self, $rmp) = @_;	1779	my ($self, $rmp) = @_;
		1780
		1781	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1782
1168	# mit "rum" bekleckern, nicht	1783	# mit "rum" bekleckern, nicht
1169	$self->_create_random_map (	1784	$self->_create_random_map (
1170	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1785	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1171	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1786	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1172	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1787	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1206	my ($self, $merge) = @_;	1821	my ($self, $merge) = @_;
1207		1822
1208	# we have to keep some variables in memory intact	1823	# we have to keep some variables in memory intact
1209	local $self->{path};	1824	local $self->{path};
1210	local $self->{load_path};	1825	local $self->{load_path};
1211	local $self->{deny_save};
1212	local $self->{deny_reset};
1213		1826
1214	$self->SUPER::thawer_merge ($merge);	1827	$self->SUPER::thawer_merge ($merge);
1215	}	1828	}
1216		1829
1217	sub normalise {	1830	sub normalise {
…		…
1264	$self->init; # pass $1 etc.	1877	$self->init; # pass $1 etc.
1265	return $self;	1878	return $self;
1266	}	1879	}
1267	}	1880	}
1268		1881
1269	Carp::carp "unable to resolve path '$path' (base '$base').";	1882	Carp::cluck "unable to resolve path '$path' (base '$base').";
1270	()	1883	()
1271	}	1884	}
1272		1885
1273	sub init {	1886	sub init {
1274	my ($self) = @_;	1887	my ($self) = @_;
…		…
1289		1902
1290	# the original (read-only) location	1903	# the original (read-only) location
1291	sub load_path {	1904	sub load_path {
1292	my ($self) = @_;	1905	my ($self) = @_;
1293		1906
1294	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1907	"$MAPDIR/$self->{path}.map"
1295	}	1908	}
1296		1909
1297	# the temporary/swap location	1910	# the temporary/swap location
1298	sub save_path {	1911	sub save_path {
1299	my ($self) = @_;	1912	my ($self) = @_;
1300		1913
1301	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1914	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1302	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1915	"$TMPDIR/$path.map"
1303	}	1916	}
1304		1917
1305	# the unique path, undef == no special unique path	1918	# the unique path, undef == no special unique path
1306	sub uniq_path {	1919	sub uniq_path {
1307	my ($self) = @_;	1920	my ($self) = @_;
1308		1921
1309	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1922	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1310	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1923	"$UNIQUEDIR/$path"
1311	}	1924	}
1312		1925
1313	# and all this just because we cannot iterate over	1926	# and all this just because we cannot iterate over
1314	# all maps in C++...	1927	# all maps in C++...
1315	sub change_all_map_light {	1928	sub change_all_map_light {
…		…
1317		1930
1318	$_->change_map_light ($change)	1931	$_->change_map_light ($change)
1319	for grep $_->outdoor, values %cf::MAP;	1932	for grep $_->outdoor, values %cf::MAP;
1320	}	1933	}
1321		1934
		1935	sub decay_objects {
		1936	my ($self) = @_;
		1937
		1938	return if $self->{deny_reset};
		1939
		1940	$self->do_decay_objects;
		1941	}
		1942
1322	sub unlink_save {	1943	sub unlink_save {
1323	my ($self) = @_;	1944	my ($self) = @_;
1324		1945
1325	utf8::encode (my $save = $self->save_path);	1946	utf8::encode (my $save = $self->save_path);
1326	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1947	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1329		1950
1330	sub load_header_from($) {	1951	sub load_header_from($) {
1331	my ($self, $path) = @_;	1952	my ($self, $path) = @_;
1332		1953
1333	utf8::encode $path;	1954	utf8::encode $path;
1334	#aio_open $path, O_RDONLY, 0	1955	my $f = new_from_file cf::object::thawer $path
1335	# or return;
1336
1337	$self->_load_header ($path)
1338	or return;	1956	or return;
		1957
		1958	$self->_load_header ($f)
		1959	or return;
		1960
		1961	local $MAP_LOADING{$self->{path}} = $self;
		1962	$f->resolve_delayed_derefs;
1339		1963
1340	$self->{load_path} = $path;	1964	$self->{load_path} = $path;
1341		1965
1342	1	1966	1
1343	}	1967	}
…		…
1382	$self->load_header_orig	2006	$self->load_header_orig
1383	or return;	2007	or return;
1384	$self->prepare_orig;	2008	$self->prepare_orig;
1385	}	2009	}
1386		2010
		2011	$self->{deny_reset} = 1
		2012	if $self->no_reset;
		2013
		2014	$self->default_region (cf::region::find_by_path $self->{path})
		2015	unless $self->default_region;
		2016
1387	1	2017	1
1388	}	2018	}
1389		2019
1390	sub find;	2020	sub find;
1391	sub find {	2021	sub find {
1392	my ($path, $origin) = @_;	2022	my ($path, $origin) = @_;
1393		2023
1394	$path = normalise $path, $origin && $origin->path;	2024	$path = normalise $path, $origin && $origin->path;
1395		2025
		2026	cf::lock_wait "map_data:$path";#d#remove
1396	cf::lock_wait "map_find:$path";	2027	cf::lock_wait "map_find:$path";
1397		2028
1398	$cf::MAP{$path} || do {	2029	$cf::MAP{$path} || do {
1399	my $guard = cf::lock_acquire "map_find:$path";	2030	my $guard1 = cf::lock_acquire "map_find:$path";
		2031	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
		2032
1400	my $map = new_from_path cf::map $path	2033	my $map = new_from_path cf::map $path
1401	or return;	2034	or return;
1402		2035
1403	$map->{last_save} = $cf::RUNTIME;	2036	$map->{last_save} = $cf::RUNTIME;
1404		2037
1405	$map->load_header	2038	$map->load_header
1406	or return;	2039	or return;
1407		2040
1408	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2041	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1409	# doing this can freeze the server in a sync job, obviously	2042	# doing this can freeze the server in a sync job, obviously
1410	#$cf::WAIT_FOR_TICK->wait;	2043	#$cf::WAIT_FOR_TICK->wait;
		2044	undef $guard1;
		2045	undef $guard2;
1411	$map->reset;	2046	$map->reset;
1412	undef $guard;
1413	return find $path;	2047	return find $path;
1414	}	2048	}
1415		2049
1416	$cf::MAP{$path} = $map	2050	$cf::MAP{$path} = $map
1417	}	2051	}
…		…
1424	my ($self) = @_;	2058	my ($self) = @_;
1425		2059
1426	local $self->{deny_reset} = 1; # loading can take a long time	2060	local $self->{deny_reset} = 1; # loading can take a long time
1427		2061
1428	my $path = $self->{path};	2062	my $path = $self->{path};
		2063
		2064	{
1429	my $guard = cf::lock_acquire "map_load:$path";	2065	my $guard = cf::lock_acquire "map_data:$path";
1430		2066
		2067	return unless $self->valid;
1431	return if $self->in_memory != cf::MAP_SWAPPED;	2068	return unless $self->in_memory == cf::MAP_SWAPPED;
1432		2069
1433	$self->in_memory (cf::MAP_LOADING);	2070	$self->in_memory (cf::MAP_LOADING);
1434		2071
1435	$self->alloc;	2072	$self->alloc;
1436		2073
1437	$self->pre_load;	2074	$self->pre_load;
		2075	cf::cede_to_tick;
1438		2076
1439	$self->_load_objects ($self->{load_path}, 1)	2077	my $f = new_from_file cf::object::thawer $self->{load_path};
		2078	$f->skip_block;
		2079	$self->_load_objects ($f)
1440	or return;	2080	or return;
1441		2081
1442	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2082	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1443	if delete $self->{load_original};	2083	if delete $self->{load_original};
1444		2084
1445	if (my $uniq = $self->uniq_path) {	2085	if (my $uniq = $self->uniq_path) {
1446	utf8::encode $uniq;	2086	utf8::encode $uniq;
1447	if (aio_open $uniq, O_RDONLY, 0) {	2087	unless (aio_stat $uniq) {
		2088	if (my $f = new_from_file cf::object::thawer $uniq) {
1448	$self->clear_unique_items;	2089	$self->clear_unique_items;
1449	$self->_load_objects ($uniq, 0);	2090	$self->_load_objects ($f);
		2091	$f->resolve_delayed_derefs;
		2092	}
1450	}	2093	}
1451	}	2094	}
1452		2095
1453	Coro::cede;	2096	$f->resolve_delayed_derefs;
1454		2097
		2098	cf::cede_to_tick;
1455	# now do the right thing for maps	2099	# now do the right thing for maps
1456	$self->link_multipart_objects;	2100	$self->link_multipart_objects;
1457
1458	unless ($self->{deny_activate}) {
1459	$self->decay_objects;
1460	$self->fix_auto_apply;
1461	$self->update_buttons;
1462	Coro::cede;
1463	$self->set_darkness_map;
1464	$self->difficulty ($self->estimate_difficulty)	2101	$self->difficulty ($self->estimate_difficulty)
1465	unless $self->difficulty;	2102	unless $self->difficulty;
1466	Coro::cede;	2103	cf::cede_to_tick;
		2104
		2105	unless ($self->{deny_activate}) {
		2106	$self->decay_objects;
		2107	$self->fix_auto_apply;
		2108	$self->update_buttons;
		2109	cf::cede_to_tick;
		2110	$self->set_darkness_map;
		2111	cf::cede_to_tick;
1467	$self->activate;	2112	$self->activate;
		2113	}
		2114
		2115	$self->{last_save} = $cf::RUNTIME;
		2116	$self->last_access ($cf::RUNTIME);
		2117
		2118	$self->in_memory (cf::MAP_IN_MEMORY);
1468	}	2119	}
1469		2120
1470	$self->post_load;	2121	$self->post_load;
1471
1472	$self->in_memory (cf::MAP_IN_MEMORY);
1473	}	2122	}
1474		2123
1475	sub customise_for {	2124	sub customise_for {
1476	my ($self, $ob) = @_;	2125	my ($self, $ob) = @_;
1477		2126
1478	return find "~" . $ob->name . "/" . $self->{path}	2127	return find "~" . $ob->name . "/" . $self->{path}
1479	if $self->per_player;	2128	if $self->per_player;
1480		2129
		2130	# return find "?party/" . $ob->name . "/" . $self->{path}
		2131	# if $self->per_party;
		2132
1481	$self	2133	$self
1482	}	2134	}
1483		2135
1484	# find and load all maps in the 3x3 area around a map	2136	# find and load all maps in the 3x3 area around a map
1485	sub load_diag {	2137	sub load_neighbours {
1486	my ($map) = @_;	2138	my ($map) = @_;
1487		2139
1488	my @diag; # diagonal neighbours	2140	my @neigh; # diagonal neighbours
1489		2141
1490	for (0 .. 3) {	2142	for (0 .. 3) {
1491	my $neigh = $map->tile_path ($_)	2143	my $neigh = $map->tile_path ($_)
1492	or next;	2144	or next;
1493	$neigh = find $neigh, $map	2145	$neigh = find $neigh, $map
1494	or next;	2146	or next;
1495	$neigh->load;	2147	$neigh->load;
1496		2148
		2149	push @neigh,
1497	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2150	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1498	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2151	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1499	}	2152	}
1500		2153
1501	for (@diag) {	2154	for (grep defined $_->[0], @neigh) {
		2155	my ($path, $origin) = @$_;
1502	my $neigh = find @$_	2156	my $neigh = find $path, $origin
1503	or next;	2157	or next;
1504	$neigh->load;	2158	$neigh->load;
1505	}	2159	}
1506	}	2160	}
1507		2161
…		…
1512	}	2166	}
1513		2167
1514	sub do_load_sync {	2168	sub do_load_sync {
1515	my ($map) = @_;	2169	my ($map) = @_;
1516		2170
		2171	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2172	if $Coro::current == $Coro::main;
		2173
1517	cf::sync_job { $map->load };	2174	cf::sync_job { $map->load };
1518	}	2175	}
1519		2176
1520	our %MAP_PREFETCH;	2177	our %MAP_PREFETCH;
1521	our $MAP_PREFETCHER = undef;	2178	our $MAP_PREFETCHER = undef;
1522		2179
1523	sub find_async {	2180	sub find_async {
1524	my ($path, $origin) = @_;	2181	my ($path, $origin, $load) = @_;
1525		2182
1526	$path = normalise $path, $origin && $origin->{path};	2183	$path = normalise $path, $origin && $origin->{path};
1527		2184
1528	if (my $map = $cf::MAP{$path}) {	2185	if (my $map = $cf::MAP{$path}) {
1529	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2186	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
1530	}	2187	}
1531		2188
1532	undef $MAP_PREFETCH{$path};	2189	$MAP_PREFETCH{$path} |= $load;
		2190
1533	$MAP_PREFETCHER ||= cf::async {	2191	$MAP_PREFETCHER ||= cf::async {
		2192	$Coro::current->{desc} = "map prefetcher";
		2193
1534	while (%MAP_PREFETCH) {	2194	while (%MAP_PREFETCH) {
1535	for my $path (keys %MAP_PREFETCH) {	2195	while (my ($k, $v) = each %MAP_PREFETCH) {
1536	my $map = find $path	2196	if (my $map = find $k) {
1537	or next;
1538	$map->load;	2197	$map->load if $v;
		2198	}
1539		2199
1540	delete $MAP_PREFETCH{$path};	2200	delete $MAP_PREFETCH{$k};
1541	}	2201	}
1542	}	2202	}
1543	undef $MAP_PREFETCHER;	2203	undef $MAP_PREFETCHER;
1544	};	2204	};
1545	$MAP_PREFETCHER->prio (6);	2205	$MAP_PREFETCHER->prio (6);
…		…
1548	}	2208	}
1549		2209
1550	sub save {	2210	sub save {
1551	my ($self) = @_;	2211	my ($self) = @_;
1552		2212
1553	my $lock = cf::lock_acquire "map_data:" . $self->path;	2213	my $lock = cf::lock_acquire "map_data:$self->{path}";
1554		2214
1555	$self->{last_save} = $cf::RUNTIME;	2215	$self->{last_save} = $cf::RUNTIME;
1556		2216
1557	return unless $self->dirty;	2217	return unless $self->dirty;
1558		2218
…		…
1564	return if $self->{deny_save};	2224	return if $self->{deny_save};
1565		2225
1566	local $self->{last_access} = $self->last_access;#d#	2226	local $self->{last_access} = $self->last_access;#d#
1567		2227
1568	cf::async {	2228	cf::async {
		2229	$Coro::current->{desc} = "map player save";
1569	$_->contr->save for $self->players;	2230	$_->contr->save for $self->players;
1570	};	2231	};
1571		2232
1572	if ($uniq) {	2233	if ($uniq) {
1573	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2234	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
…		…
1581	my ($self) = @_;	2242	my ($self) = @_;
1582		2243
1583	# save first because save cedes	2244	# save first because save cedes
1584	$self->save;	2245	$self->save;
1585		2246
1586	my $lock = cf::lock_acquire "map_data:" . $self->path;	2247	my $lock = cf::lock_acquire "map_data:$self->{path}";
1587		2248
1588	return if $self->players;	2249	return if $self->players;
1589	return if $self->in_memory != cf::MAP_IN_MEMORY;	2250	return if $self->in_memory != cf::MAP_IN_MEMORY;
1590	return if $self->{deny_save};	2251	return if $self->{deny_save};
1591		2252
		2253	$self->in_memory (cf::MAP_SWAPPED);
		2254
		2255	$self->deactivate;
		2256	$_->clear_links_to ($self) for values %cf::MAP;
1592	$self->clear;	2257	$self->clear;
1593	$self->in_memory (cf::MAP_SWAPPED);
1594	}	2258	}
1595		2259
1596	sub reset_at {	2260	sub reset_at {
1597	my ($self) = @_;	2261	my ($self) = @_;
1598		2262
1599	# TODO: safety, remove and allow resettable per-player maps	2263	# TODO: safety, remove and allow resettable per-player maps
1600	return 1e99 if $self->isa ("ext::map_per_player");#d#
1601	return 1e99 if $self->{deny_reset};	2264	return 1e99 if $self->{deny_reset};
1602		2265
1603	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2266	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1604	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2267	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1605		2268
…		…
1616	my ($self) = @_;	2279	my ($self) = @_;
1617		2280
1618	my $lock = cf::lock_acquire "map_data:$self->{path}";	2281	my $lock = cf::lock_acquire "map_data:$self->{path}";
1619		2282
1620	return if $self->players;	2283	return if $self->players;
1621	return if $self->isa ("ext::map_per_player");#d#
1622		2284
1623	warn "resetting map ", $self->path;#d#	2285	warn "resetting map ", $self->path;
1624		2286
1625	$self->in_memory (cf::MAP_SWAPPED);	2287	$self->in_memory (cf::MAP_SWAPPED);
1626		2288
1627	# need to save uniques path	2289	# need to save uniques path
1628	unless ($self->{deny_save}) {	2290	unless ($self->{deny_save}) {
…		…
1632	if $uniq;	2294	if $uniq;
1633	}	2295	}
1634		2296
1635	delete $cf::MAP{$self->path};	2297	delete $cf::MAP{$self->path};
1636		2298
		2299	$self->deactivate;
		2300	$_->clear_links_to ($self) for values %cf::MAP;
1637	$self->clear;	2301	$self->clear;
1638
1639	$_->clear_links_to ($self) for values %cf::MAP;
1640		2302
1641	$self->unlink_save;	2303	$self->unlink_save;
1642	$self->destroy;	2304	$self->destroy;
1643	}	2305	}
1644		2306
1645	my $nuke_counter = "aaaa";	2307	my $nuke_counter = "aaaa";
1646		2308
1647	sub nuke {	2309	sub nuke {
1648	my ($self) = @_;	2310	my ($self) = @_;
1649		2311
		2312	{
		2313	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2314
1650	delete $cf::MAP{$self->path};	2315	delete $cf::MAP{$self->path};
1651		2316
1652	$self->unlink_save;	2317	$self->unlink_save;
1653		2318
1654	bless $self, "cf::map";	2319	bless $self, "cf::map";
1655	delete $self->{deny_reset};	2320	delete $self->{deny_reset};
1656	$self->{deny_save} = 1;	2321	$self->{deny_save} = 1;
1657	$self->reset_timeout (1);	2322	$self->reset_timeout (1);
1658	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2323	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1659		2324
1660	$cf::MAP{$self->path} = $self;	2325	$cf::MAP{$self->path} = $self;
		2326	}
1661		2327
1662	$self->reset; # polite request, might not happen	2328	$self->reset; # polite request, might not happen
		2329	}
		2330
		2331	=item $maps = cf::map::tmp_maps
		2332
		2333	Returns an arrayref with all map paths of currently instantiated and saved
		2334	maps. May block.
		2335
		2336	=cut
		2337
		2338	sub tmp_maps() {
		2339	[
		2340	map {
		2341	utf8::decode $_;
		2342	/\.map$/
		2343	? normalise $_
		2344	: ()
		2345	} @{ aio_readdir $TMPDIR or [] }
		2346	]
		2347	}
		2348
		2349	=item $maps = cf::map::random_maps
		2350
		2351	Returns an arrayref with all map paths of currently instantiated and saved
		2352	random maps. May block.
		2353
		2354	=cut
		2355
		2356	sub random_maps() {
		2357	[
		2358	map {
		2359	utf8::decode $_;
		2360	/\.map$/
		2361	? normalise "?random/$_"
		2362	: ()
		2363	} @{ aio_readdir $RANDOMDIR or [] }
		2364	]
1663	}	2365	}
1664		2366
1665	=item cf::map::unique_maps	2367	=item cf::map::unique_maps
1666		2368
1667	Returns an arrayref of paths of all shared maps that have	2369	Returns an arrayref of paths of all shared maps that have
1668	instantiated unique items. May block.	2370	instantiated unique items. May block.
1669		2371
1670	=cut	2372	=cut
1671		2373
1672	sub unique_maps() {	2374	sub unique_maps() {
1673	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2375	[
1674	or return;	2376	map {
1675
1676	my @paths;
1677
1678	for (@$files) {
1679	utf8::decode $_;	2377	utf8::decode $_;
1680	next if /\.pst$/;	2378	/\.map$/
1681	next unless /^$PATH_SEP/o;	2379	? normalise $_
1682		2380	: ()
1683	push @paths, cf::map::normalise $_;	2381	} @{ aio_readdir $UNIQUEDIR or [] }
1684	}	2382	]
1685
1686	\@paths
1687	}	2383	}
1688
1689	package cf;
1690		2384
1691	=back	2385	=back
1692		2386
1693	=head3 cf::object	2387	=head3 cf::object
1694		2388
…		…
1709	map { $_, inv_recursive_ $_->inv } @_	2403	map { $_, inv_recursive_ $_->inv } @_
1710	}	2404	}
1711		2405
1712	sub inv_recursive {	2406	sub inv_recursive {
1713	inv_recursive_ inv $_[0]	2407	inv_recursive_ inv $_[0]
		2408	}
		2409
		2410	=item $ref = $ob->ref
		2411
		2412	creates and returns a persistent reference to an objetc that can be stored as a string.
		2413
		2414	=item $ob = cf::object::deref ($refstring)
		2415
		2416	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2417	even if the object actually exists. May block.
		2418
		2419	=cut
		2420
		2421	sub deref {
		2422	my ($ref) = @_;
		2423
		2424	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2425	my ($uuid, $name) = ($1, $2);
		2426	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2427	or return;
		2428	$pl->ob->uuid eq $uuid
		2429	or return;
		2430
		2431	$pl->ob
		2432	} else {
		2433	warn "$ref: cannot resolve object reference\n";
		2434	undef
		2435	}
1714	}	2436	}
1715		2437
1716	package cf;	2438	package cf;
1717		2439
1718	=back	2440	=back
…		…
1737		2459
1738	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2460	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1739		2461
1740	if ($self->{record_replies}) {	2462	if ($self->{record_replies}) {
1741	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2463	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2464
1742	} else {	2465	} else {
		2466	my $pl = $self->contr;
		2467
		2468	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2469	my $dialog = $pl->{npc_dialog};
		2470	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2471
		2472	} else {
1743	$msg = $npc->name . " says: $msg" if $npc;	2473	$msg = $npc->name . " says: $msg" if $npc;
1744	$self->message ($msg, $flags);	2474	$self->message ($msg, $flags);
		2475	}
1745	}	2476	}
		2477	}
		2478
		2479	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2480
		2481	=cut
		2482
		2483	sub cf::object::send_msg {
		2484	my $pl = shift->contr
		2485	or return;
		2486	$pl->send_msg (@_);
1746	}	2487	}
1747		2488
1748	=item $player_object->may ("access")	2489	=item $player_object->may ("access")
1749		2490
1750	Returns wether the given player is authorized to access resource "access"	2491	Returns wether the given player is authorized to access resource "access"
…		…
1797	$self->deactivate_recursive;	2538	$self->deactivate_recursive;
1798		2539
1799	return if UNIVERSAL::isa $self->map, "ext::map_link";	2540	return if UNIVERSAL::isa $self->map, "ext::map_link";
1800		2541
1801	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2542	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1802	if $self->map;	2543	if $self->map && $self->map->{path} ne "{link}";
1803		2544
1804	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2545	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1805	}	2546	}
1806		2547
1807	sub cf::object::player::leave_link {	2548	sub cf::object::player::leave_link {
1808	my ($self, $map, $x, $y) = @_;	2549	my ($self, $map, $x, $y) = @_;
		2550
		2551	return unless $self->contr->active;
1809		2552
1810	my $link_pos = delete $self->{_link_pos};	2553	my $link_pos = delete $self->{_link_pos};
1811		2554
1812	unless ($map) {	2555	unless ($map) {
1813	# restore original map position	2556	# restore original map position
…		…
1827	# use -1 or undef as default coordinates, not 0, 0	2570	# use -1 or undef as default coordinates, not 0, 0
1828	($x, $y) = ($map->enter_x, $map->enter_y)	2571	($x, $y) = ($map->enter_x, $map->enter_y)
1829	if $x <=0 && $y <= 0;	2572	if $x <=0 && $y <= 0;
1830		2573
1831	$map->load;	2574	$map->load;
1832	$map->load_diag;	2575	$map->load_neighbours;
1833		2576
1834	return unless $self->contr->active;	2577	return unless $self->contr->active;
1835	$self->activate_recursive;	2578	$self->activate_recursive;
1836		2579
1837	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2580	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1838	$self->enter_map ($map, $x, $y);	2581	$self->enter_map ($map, $x, $y);
1839	}	2582	}
1840		2583
1841	cf::player->attach (	2584	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1842	on_logout => sub {
1843	my ($pl) = @_;
1844		2585
1845	# abort map switching before logout	2586	Moves the player to the given map-path and coordinates by first freezing
1846	if ($pl->ob->{_link_pos}) {	2587	her, loading and preparing them map, calling the provided $check callback
1847	cf::sync_job {	2588	that has to return the map if sucecssful, and then unfreezes the player on
1848	$pl->ob->leave_link	2589	the new (success) or old (failed) map position. In either case, $done will
1849	};	2590	be called at the end of this process.
1850	}
1851	},
1852	on_login => sub {
1853	my ($pl) = @_;
1854		2591
1855	# try to abort aborted map switching on player login :)
1856	# should happen only on crashes
1857	if ($pl->ob->{_link_pos}) {
1858	$pl->ob->enter_link;
1859	(async {
1860	$pl->ob->reply (undef,
1861	"There was an internal problem at your last logout, "
1862	. "the server will try to bring you to your intended destination in a second.",
1863	cf::NDI_RED);
1864	# we need this sleep as the login has a concurrent enter_exit running
1865	# and this sleep increases chances of the player not ending up in scorn
1866	Coro::Timer::sleep 1;
1867	$pl->ob->leave_link;
1868	})->prio (2);
1869	}
1870	},
1871	);
1872
1873	=item $player_object->goto ($path, $x, $y)
1874
1875	=cut	2592	=cut
		2593
		2594	our $GOTOGEN;
1876		2595
1877	sub cf::object::player::goto {	2596	sub cf::object::player::goto {
1878	my ($self, $path, $x, $y) = @_;	2597	my ($self, $path, $x, $y, $check, $done) = @_;
		2598
		2599	# do generation counting so two concurrent goto's will be executed in-order
		2600	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1879		2601
1880	$self->enter_link;	2602	$self->enter_link;
1881		2603
1882	(async {	2604	(async {
		2605	$Coro::current->{desc} = "player::goto $path $x $y";
		2606
		2607	# *tag paths override both path and x|y
		2608	if ($path =~ /^\*(.*)$/) {
		2609	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2610	my $ob = $obs[rand @obs];
		2611
		2612	# see if we actually can go there
		2613	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2614	$ob = $obs[rand @obs];
		2615	} else {
		2616	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2617	}
		2618	# else put us there anyways for now #d#
		2619
		2620	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2621	} else {
		2622	($path, $x, $y) = (undef, undef, undef);
		2623	}
		2624	}
		2625
1883	my $map = eval {	2626	my $map = eval {
1884	my $map = cf::map::find $path;	2627	my $map = defined $path ? cf::map::find $path : undef;
		2628
		2629	if ($map) {
1885	$map = $map->customise_for ($self) if $map;	2630	$map = $map->customise_for ($self);
		2631	$map = $check->($map) if $check && $map;
		2632	} else {
		2633	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2634	}
		2635
1886	$map	2636	$map
		2637	};
		2638
		2639	if ($@) {
		2640	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2641	LOG llevError | logBacktrace, Carp::longmess $@;
1887	} or	2642	}
1888	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1889		2643
		2644	if ($gen == $self->{_goto_generation}) {
		2645	delete $self->{_goto_generation};
1890	$self->leave_link ($map, $x, $y);	2646	$self->leave_link ($map, $x, $y);
		2647	}
		2648
		2649	$done->() if $done;
1891	})->prio (1);	2650	})->prio (1);
1892	}	2651	}
1893		2652
1894	=item $player_object->enter_exit ($exit_object)	2653	=item $player_object->enter_exit ($exit_object)
1895		2654
…		…
1932	$rmp->{origin_y} = $exit->y;	2691	$rmp->{origin_y} = $exit->y;
1933	}	2692	}
1934		2693
1935	$rmp->{random_seed} ||= $exit->random_seed;	2694	$rmp->{random_seed} ||= $exit->random_seed;
1936		2695
1937	my $data = cf::to_json $rmp;	2696	my $data = cf::encode_json $rmp;
1938	my $md5 = Digest::MD5::md5_hex $data;	2697	my $md5 = Digest::MD5::md5_hex $data;
1939	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2698	my $meta = "$RANDOMDIR/$md5.meta";
1940		2699
1941	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2700	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1942	aio_write $fh, 0, (length $data), $data, 0;	2701	aio_write $fh, 0, (length $data), $data, 0;
1943	undef $fh;	2702	undef $fh;
1944	aio_rename "$meta~", $meta;	2703	aio_rename "$meta~", $meta;
…		…
1953		2712
1954	return unless $self->type == cf::PLAYER;	2713	return unless $self->type == cf::PLAYER;
1955		2714
1956	if ($exit->slaying eq "/!") {	2715	if ($exit->slaying eq "/!") {
1957	#TODO: this should de-fi-ni-te-ly not be a sync-job	2716	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2717	# the problem is that $exit might not survive long enough
		2718	# so it needs to be done right now, right here
1958	cf::sync_job { prepare_random_map $exit };	2719	cf::sync_job { prepare_random_map $exit };
1959	}	2720	}
1960		2721
1961	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2722	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1962	my $hp = $exit->stats->hp;	2723	my $hp = $exit->stats->hp;
1963	my $sp = $exit->stats->sp;	2724	my $sp = $exit->stats->sp;
1964		2725
1965	$self->enter_link;	2726	$self->enter_link;
1966		2727
		2728	# if exit is damned, update players death & WoR home-position
		2729	$self->contr->savebed ($slaying, $hp, $sp)
		2730	if $exit->flag (FLAG_DAMNED);
		2731
1967	(async {	2732	(async {
		2733	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2734
1968	$self->deactivate_recursive; # just to be sure	2735	$self->deactivate_recursive; # just to be sure
1969	unless (eval {	2736	unless (eval {
1970	$self->goto ($slaying, $hp, $sp);	2737	$self->goto ($slaying, $hp, $sp);
1971		2738
1972	1;	2739	1;
1973	}) {	2740	}) {
1974	$self->message ("Something went wrong deep within the crossfire server. "	2741	$self->message ("Something went wrong deep within the crossfire server. "
1975	. "I'll try to bring you back to the map you were before. "	2742	. "I'll try to bring you back to the map you were before. "
1976	. "Please report this to the dungeon master!",	2743	. "Please report this to the dungeon master!",
1977	cf::NDI_UNIQUE | cf::NDI_RED);	2744	cf::NDI_UNIQUE | cf::NDI_RED);
1978		2745
1979	warn "ERROR in enter_exit: $@";	2746	warn "ERROR in enter_exit: $@";
1980	$self->leave_link;	2747	$self->leave_link;
1981	}	2748	}
1982	})->prio (1);	2749	})->prio (1);
…		…
1995		2762
1996	sub cf::client::send_drawinfo {	2763	sub cf::client::send_drawinfo {
1997	my ($self, $text, $flags) = @_;	2764	my ($self, $text, $flags) = @_;
1998		2765
1999	utf8::encode $text;	2766	utf8::encode $text;
2000	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2767	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2001	}	2768	}
2002		2769
		2770	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2771
		2772	Send a drawinfo or msg packet to the client, formatting the msg for the
		2773	client if neccessary. C<$type> should be a string identifying the type of
		2774	the message, with C<log> being the default. If C<$color> is negative, suppress
		2775	the message unless the client supports the msg packet.
		2776
		2777	=cut
		2778
		2779	# non-persistent channels (usually the info channel)
		2780	our %CHANNEL = (
		2781	"c/identify" => {
		2782	id => "infobox",
		2783	title => "Identify",
		2784	reply => undef,
		2785	tooltip => "Items recently identified",
		2786	},
		2787	"c/examine" => {
		2788	id => "infobox",
		2789	title => "Examine",
		2790	reply => undef,
		2791	tooltip => "Signs and other items you examined",
		2792	},
		2793	"c/book" => {
		2794	id => "infobox",
		2795	title => "Book",
		2796	reply => undef,
		2797	tooltip => "The contents of a note or book",
		2798	},
		2799	"c/lookat" => {
		2800	id => "infobox",
		2801	title => "Look",
		2802	reply => undef,
		2803	tooltip => "What you saw there",
		2804	},
		2805	"c/who" => {
		2806	id => "infobox",
		2807	title => "Players",
		2808	reply => undef,
		2809	tooltip => "Shows players who are currently online",
		2810	},
		2811	"c/body" => {
		2812	id => "infobox",
		2813	title => "Body Parts",
		2814	reply => undef,
		2815	tooltip => "Shows which body parts you posess and are available",
		2816	},
		2817	"c/uptime" => {
		2818	id => "infobox",
		2819	title => "Uptime",
		2820	reply => undef,
		2821	tooltip => "How long the server has been running since last restart",
		2822	},
		2823	"c/mapinfo" => {
		2824	id => "infobox",
		2825	title => "Map Info",
		2826	reply => undef,
		2827	tooltip => "Information related to the maps",
		2828	},
		2829	);
		2830
		2831	sub cf::client::send_msg {
		2832	my ($self, $channel, $msg, $color, @extra) = @_;
		2833
		2834	$msg = $self->pl->expand_cfpod ($msg);
		2835
		2836	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2837
		2838	# check predefined channels, for the benefit of C
		2839	if ($CHANNEL{$channel}) {
		2840	$channel = $CHANNEL{$channel};
		2841
		2842	$self->ext_msg (channel_info => $channel)
		2843	if $self->can_msg;
		2844
		2845	$channel = $channel->{id};
		2846
		2847	} elsif (ref $channel) {
		2848	# send meta info to client, if not yet sent
		2849	unless (exists $self->{channel}{$channel->{id}}) {
		2850	$self->{channel}{$channel->{id}} = $channel;
		2851	$self->ext_msg (channel_info => $channel)
		2852	if $self->can_msg;
		2853	}
		2854
		2855	$channel = $channel->{id};
		2856	}
		2857
		2858	return unless @extra || length $msg;
		2859
		2860	if ($self->can_msg) {
		2861	# default colour, mask it out
		2862	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2863	if $color & cf::NDI_DEF;
		2864
		2865	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2866	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2867	} else {
		2868	if ($color >= 0) {
		2869	# replace some tags by gcfclient-compatible ones
		2870	for ($msg) {
		2871	1 while
		2872	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2873	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2874	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2875	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2876	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2877	}
		2878
		2879	$color &= cf::NDI_COLOR_MASK;
		2880
		2881	utf8::encode $msg;
		2882
		2883	if (0 && $msg =~ /\[/) {
		2884	# COMMAND/INFO
		2885	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2886	} else {
		2887	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2888	$self->send_packet ("drawinfo $color $msg")
		2889	}
		2890	}
		2891	}
		2892	}
		2893
		2894	=item $client->ext_msg ($type, @msg)
		2895
		2896	Sends an ext event to the client.
		2897
		2898	=cut
		2899
		2900	sub cf::client::ext_msg($$@) {
		2901	my ($self, $type, @msg) = @_;
		2902
		2903	if ($self->extcmd == 2) {
		2904	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2905	} elsif ($self->extcmd == 1) { # TODO: remove
		2906	push @msg, msgtype => "event_$type";
		2907	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2908	}
		2909	}
		2910
		2911	=item $client->ext_reply ($msgid, @msg)
		2912
		2913	Sends an ext reply to the client.
		2914
		2915	=cut
		2916
		2917	sub cf::client::ext_reply($$@) {
		2918	my ($self, $id, @msg) = @_;
		2919
		2920	if ($self->extcmd == 2) {
		2921	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2922	} elsif ($self->extcmd == 1) {
		2923	#TODO: version 1, remove
		2924	unshift @msg, msgtype => "reply", msgid => $id;
		2925	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2926	}
		2927	}
2003		2928
2004	=item $success = $client->query ($flags, "text", \&cb)	2929	=item $success = $client->query ($flags, "text", \&cb)
2005		2930
2006	Queues a query to the client, calling the given callback with	2931	Queues a query to the client, calling the given callback with
2007	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2932	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2008	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2933	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2009		2934
2010	Queries can fail, so check the return code. Or don't, as queries will become	2935	Queries can fail, so check the return code. Or don't, as queries will
2011	reliable at some point in the future.	2936	become reliable at some point in the future.
2012		2937
2013	=cut	2938	=cut
2014		2939
2015	sub cf::client::query {	2940	sub cf::client::query {
2016	my ($self, $flags, $text, $cb) = @_;	2941	my ($self, $flags, $text, $cb) = @_;
…		…
2024	utf8::encode $text;	2949	utf8::encode $text;
2025	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2950	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2026		2951
2027	$self->send_packet ($self->{query_queue}[0][0])	2952	$self->send_packet ($self->{query_queue}[0][0])
2028	if @{ $self->{query_queue} } == 1;	2953	if @{ $self->{query_queue} } == 1;
		2954
		2955	1
2029	}	2956	}
2030		2957
2031	cf::client->attach (	2958	cf::client->attach (
		2959	on_connect => sub {
		2960	my ($ns) = @_;
		2961
		2962	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2963	},
2032	on_reply => sub {	2964	on_reply => sub {
2033	my ($ns, $msg) = @_;	2965	my ($ns, $msg) = @_;
2034		2966
2035	# this weird shuffling is so that direct followup queries	2967	# this weird shuffling is so that direct followup queries
2036	# get handled first	2968	# get handled first
…		…
2048	} else {	2980	} else {
2049	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2981	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2050	}	2982	}
2051	}	2983	}
2052	},	2984	},
		2985	on_exticmd => sub {
		2986	my ($ns, $buf) = @_;
		2987
		2988	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2989
		2990	if (ref $msg) {
		2991	my ($type, $reply, @payload) =
		2992	"ARRAY" eq ref $msg
		2993	? @$msg
		2994	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2995
		2996	my @reply;
		2997
		2998	if (my $cb = $EXTICMD{$type}) {
		2999	@reply = $cb->($ns, @payload);
		3000	}
		3001
		3002	$ns->ext_reply ($reply, @reply)
		3003	if $reply;
		3004
		3005	} else {
		3006	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3007	}
		3008
		3009	cf::override;
		3010	},
2053	);	3011	);
2054		3012
2055	=item $client->async (\&cb)	3013	=item $client->async (\&cb)
2056		3014
2057	Create a new coroutine, running the specified callback. The coroutine will	3015	Create a new coroutine, running the specified callback. The coroutine will
…		…
2098	our $safe = new Safe "safe";	3056	our $safe = new Safe "safe";
2099	our $safe_hole = new Safe::Hole;	3057	our $safe_hole = new Safe::Hole;
2100		3058
2101	$SIG{FPE} = 'IGNORE';	3059	$SIG{FPE} = 'IGNORE';
2102		3060
2103	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3061	$safe->permit_only (Opcode::opset qw(
		3062	:base_core :base_mem :base_orig :base_math
		3063	grepstart grepwhile mapstart mapwhile
		3064	sort time
		3065	));
2104		3066
2105	# here we export the classes and methods available to script code	3067	# here we export the classes and methods available to script code
2106		3068
2107	=pod	3069	=pod
2108		3070
2109	The following fucntions and emthods are available within a safe environment:	3071	The following functions and methods are available within a safe environment:
2110		3072
2111	cf::object contr pay_amount pay_player map	3073	cf::object
		3074	contr pay_amount pay_player map x y force_find force_add destroy
		3075	insert remove name archname title slaying race decrease_ob_nr
		3076
2112	cf::object::player player	3077	cf::object::player
2113	cf::player peaceful	3078	player
2114	cf::map trigger	3079
		3080	cf::player
		3081	peaceful
		3082
		3083	cf::map
		3084	trigger
2115		3085
2116	=cut	3086	=cut
2117		3087
2118	for (	3088	for (
2119	["cf::object" => qw(contr pay_amount pay_player map)],	3089	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3090	insert remove inv name archname title slaying race
		3091	decrease_ob_nr destroy)],
2120	["cf::object::player" => qw(player)],	3092	["cf::object::player" => qw(player)],
2121	["cf::player" => qw(peaceful)],	3093	["cf::player" => qw(peaceful)],
2122	["cf::map" => qw(trigger)],	3094	["cf::map" => qw(trigger)],
2123	) {	3095	) {
2124	no strict 'refs';	3096	no strict 'refs';
…		…
2195	=back	3167	=back
2196		3168
2197	=cut	3169	=cut
2198		3170
2199	#############################################################################	3171	#############################################################################
2200
2201	=head2 EXTENSION DATABASE SUPPORT
2202
2203	Crossfire maintains a very simple database for extension use. It can
2204	currently store anything that can be serialised using Storable, which
2205	excludes objects.
2206
2207	The parameter C<$family> should best start with the name of the extension
2208	using it, it should be unique.
2209
2210	=over 4
2211
2212	=item $value = cf::db_get $family => $key
2213
2214	Returns a single value from the database.
2215
2216	=item cf::db_put $family => $key => $value
2217
2218	Stores the given C<$value> in the family.
2219
2220	=cut
2221
2222	our $DB;
2223
2224	sub db_init {
2225	unless ($DB) {
2226	$DB = BDB::db_create $DB_ENV;
2227
2228	cf::sync_job {
2229	eval {
2230	$DB->set_flags (BDB::CHKSUM);
2231
2232	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2233	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2234	cf::cleanup "db_open(db): $!" if $!;
2235	};
2236	cf::cleanup "db_open(db): $@" if $@;
2237	};
2238
2239	my $path = cf::localdir . "/database.pst";
2240	if (stat $path) {
2241	cf::sync_job {
2242	my $pst = Storable::retrieve $path;
2243
2244	cf::db_put (board => data => $pst->{board});
2245	cf::db_put (guildrules => data => $pst->{guildrules});
2246	cf::db_put (rent => balance => $pst->{rent}{balance});
2247	BDB::db_env_txn_checkpoint $DB_ENV;
2248
2249	unlink $path;
2250	};
2251	}
2252	}
2253	}
2254
2255	sub db_get($$) {
2256	my $key = "$_[0]/$_[1]";
2257
2258	cf::sync_job {
2259	BDB::db_get $DB, undef, $key, my $data;
2260
2261	$! ? ()
2262	: Compress::LZF::sthaw $data
2263	}
2264	}
2265
2266	sub db_put($$$) {
2267	BDB::dbreq_pri 4;
2268	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2269	}
2270
2271	#############################################################################
2272	# the server's init and main functions	3172	# the server's init and main functions
2273		3173
2274	sub load_faces {	3174	sub load_facedata($) {
2275	my $path = sprintf "%s/faces", cf::datadir;	3175	my ($path) = @_;
2276		3176
		3177	# HACK to clear player env face cache, we need some signal framework
		3178	# for this (global event?)
		3179	%ext::player_env::MUSIC_FACE_CACHE = ();
		3180
		3181	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3182
2277	warn "loading faces from $path\n";	3183	warn "loading facedata from $path\n";
2278		3184
2279	my $faces;	3185	my $facedata;
2280	0 < aio_load $path, $faces	3186	0 < aio_load $path, $facedata
2281	or die "$path: $!";	3187	or die "$path: $!";
2282		3188
2283	Coro::cede;
2284	$faces = Storable::thaw $faces;	3189	$facedata = Coro::Storable::thaw $facedata;
2285	Coro::cede;
2286		3190
		3191	$facedata->{version} == 2
		3192	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3193
		3194	# patch in the exptable
		3195	$facedata->{resource}{"res/exp_table"} = {
		3196	type => FT_RSRC,
		3197	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3198	};
		3199	cf::cede_to_tick;
		3200
		3201	{
		3202	my $faces = $facedata->{faceinfo};
		3203
2287	while (my ($face, $info) = each %$faces) {	3204	while (my ($face, $info) = each %$faces) {
2288	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3205	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2289	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3206
		3207	cf::face::set_visibility $idx, $info->{visibility};
		3208	cf::face::set_magicmap $idx, $info->{magicmap};
2290	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3209	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2291	Coro::cede;	3210	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
		3211
		3212	cf::cede_to_tick;
		3213	}
		3214
		3215	while (my ($face, $info) = each %$faces) {
		3216	next unless $info->{smooth};
		3217
		3218	my $idx = cf::face::find $face
		3219	or next;
		3220
		3221	if (my $smooth = cf::face::find $info->{smooth}) {
		3222	cf::face::set_smooth $idx, $smooth;
		3223	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3224	} else {
		3225	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3226	}
		3227
		3228	cf::cede_to_tick;
		3229	}
		3230	}
		3231
2292	}	3232	{
		3233	my $anims = $facedata->{animinfo};
		3234
		3235	while (my ($anim, $info) = each %$anims) {
		3236	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3237	cf::cede_to_tick;
		3238	}
		3239
		3240	cf::anim::invalidate_all; # d'oh
		3241	}
		3242
		3243	{
		3244	# TODO: for gcfclient pleasure, we should give resources
		3245	# that gcfclient doesn't grok a >10000 face index.
		3246	my $res = $facedata->{resource};
		3247
		3248	while (my ($name, $info) = each %$res) {
		3249	if (defined $info->{type}) {
		3250	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3251	my $data;
		3252
		3253	if ($info->{type} & 1) {
		3254	# prepend meta info
		3255
		3256	my $meta = $enc->encode ({
		3257	name => $name,
		3258	%{ $info->{meta} || {} },
		3259	});
		3260
		3261	$data = pack "(w/a*)*", $meta, $info->{data};
		3262	} else {
		3263	$data = $info->{data};
		3264	}
		3265
		3266	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3267	cf::face::set_type $idx, $info->{type};
		3268	} else {
		3269	$RESOURCE{$name} = $info;
		3270	}
		3271
		3272	cf::cede_to_tick;
		3273	}
		3274	}
		3275
		3276	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
2293		3277
2294	1	3278	1
2295	}	3279	}
2296		3280
		3281	cf::global->attach (on_resource_update => sub {
		3282	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3283	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3284
		3285	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3286	my $sound = $soundconf->{compat}[$_]
		3287	or next;
		3288
		3289	my $face = cf::face::find "sound/$sound->[1]";
		3290	cf::sound::set $sound->[0] => $face;
		3291	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3292	}
		3293
		3294	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3295	my $face = cf::face::find "sound/$v";
		3296	cf::sound::set $k => $face;
		3297	}
		3298	}
		3299	});
		3300
		3301	register_exticmd fx_want => sub {
		3302	my ($ns, $want) = @_;
		3303
		3304	while (my ($k, $v) = each %$want) {
		3305	$ns->fx_want ($k, $v);
		3306	}
		3307	};
		3308
		3309	sub reload_regions {
		3310	# HACK to clear player env face cache, we need some signal framework
		3311	# for this (global event?)
		3312	%ext::player_env::MUSIC_FACE_CACHE = ();
		3313
		3314	load_resource_file "$MAPDIR/regions"
		3315	or die "unable to load regions file\n";
		3316
		3317	for (cf::region::list) {
		3318	$_->{match} = qr/$_->{match}/
		3319	if exists $_->{match};
		3320	}
		3321	}
		3322
		3323	sub reload_facedata {
		3324	load_facedata "$DATADIR/facedata"
		3325	or die "unable to load facedata\n";
		3326	}
		3327
		3328	sub reload_archetypes {
		3329	load_resource_file "$DATADIR/archetypes"
		3330	or die "unable to load archetypes\n";
		3331	#d# NEED to laod twice to resolve forward references
		3332	# this really needs to be done in an extra post-pass
		3333	# (which needs to be synchronous, so solve it differently)
		3334	load_resource_file "$DATADIR/archetypes"
		3335	or die "unable to load archetypes\n";
		3336	}
		3337
		3338	sub reload_treasures {
		3339	load_resource_file "$DATADIR/treasures"
		3340	or die "unable to load treasurelists\n";
		3341	}
		3342
2297	sub reload_resources {	3343	sub reload_resources {
2298	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3344	warn "reloading resource files...\n";
2299	or die "unable to load regions file\n";#d#	3345
		3346	reload_regions;
2300	load_faces	3347	reload_facedata;
2301	or die "unable to load faces\n";#d#	3348	#reload_archetypes;#d#
		3349	reload_archetypes;
		3350	reload_treasures;
		3351
		3352	warn "finished reloading resource files\n";
2302	}	3353	}
2303		3354
2304	sub init {	3355	sub init {
2305	reload_resources;	3356	reload_resources;
2306	}	3357	}
2307		3358
2308	sub cfg_load {	3359	sub reload_config {
2309	open my $fh, "<:utf8", cf::confdir . "/config"	3360	open my $fh, "<:utf8", "$CONFDIR/config"
2310	or return;	3361	or return;
2311		3362
2312	local $/;	3363	local $/;
2313	*CFG = YAML::Syck::Load <$fh>;	3364	*CFG = YAML::Load <$fh>;
2314		3365
2315	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3366	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2316		3367
2317	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3368	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2318	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3369	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2329	sub main {	3380	sub main {
2330	# we must not ever block the main coroutine	3381	# we must not ever block the main coroutine
2331	local $Coro::idle = sub {	3382	local $Coro::idle = sub {
2332	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3383	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2333	(async {	3384	(async {
2334	Event::one_event;	3385	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3386	EV::loop EV::LOOP_ONESHOT;
2335	})->prio (Coro::PRIO_MAX);	3387	})->prio (Coro::PRIO_MAX);
2336	};	3388	};
2337		3389
2338	cfg_load;	3390	reload_config;
2339	db_init;	3391	db_init;
2340	load_extensions;	3392	load_extensions;
2341		3393
2342	$TICK_WATCHER->start;	3394	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3395	evthread_start IO::AIO::poll_fileno;
2343	Event::loop;	3396	EV::loop;
2344	}	3397	}
2345		3398
2346	#############################################################################	3399	#############################################################################
2347	# initialisation and cleanup	3400	# initialisation and cleanup
2348		3401
2349	# install some emergency cleanup handlers	3402	# install some emergency cleanup handlers
2350	BEGIN {	3403	BEGIN {
		3404	our %SIGWATCHER = ();
2351	for my $signal (qw(INT HUP TERM)) {	3405	for my $signal (qw(INT HUP TERM)) {
2352	Event->signal (	3406	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2353	reentrant => 0,
2354	data => WF_AUTOCANCEL,
2355	signal => $signal,
2356	prio => 0,
2357	cb => sub {
2358	cf::cleanup "SIG$signal";	3407	cf::cleanup "SIG$signal";
2359	},
2360	);	3408	};
		3409	}
		3410	}
		3411
		3412	sub write_runtime_sync {
		3413	my $runtime = "$LOCALDIR/runtime";
		3414
		3415	# first touch the runtime file to show we are still running:
		3416	# the fsync below can take a very very long time.
		3417
		3418	IO::AIO::aio_utime $runtime, undef, undef;
		3419
		3420	my $guard = cf::lock_acquire "write_runtime";
		3421
		3422	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3423	or return;
		3424
		3425	my $value = $cf::RUNTIME + 90 + 10;
		3426	# 10 is the runtime save interval, for a monotonic clock
		3427	# 60 allows for the watchdog to kill the server.
		3428
		3429	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3430	and return;
		3431
		3432	# always fsync - this file is important
		3433	aio_fsync $fh
		3434	and return;
		3435
		3436	# touch it again to show we are up-to-date
		3437	aio_utime $fh, undef, undef;
		3438
		3439	close $fh
		3440	or return;
		3441
		3442	aio_rename "$runtime~", $runtime
		3443	and return;
		3444
		3445	warn "runtime file written.\n";
		3446
2361	}	3447	1
		3448	}
		3449
		3450	our $uuid_lock;
		3451	our $uuid_skip;
		3452
		3453	sub write_uuid_sync($) {
		3454	$uuid_skip ||= $_[0];
		3455
		3456	return if $uuid_lock;
		3457	local $uuid_lock = 1;
		3458
		3459	my $uuid = "$LOCALDIR/uuid";
		3460
		3461	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3462	or return;
		3463
		3464	my $value = uuid_str $uuid_skip + uuid_seq uuid_cur;
		3465	$uuid_skip = 0;
		3466
		3467	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3468	and return;
		3469
		3470	# always fsync - this file is important
		3471	aio_fsync $fh
		3472	and return;
		3473
		3474	close $fh
		3475	or return;
		3476
		3477	aio_rename "$uuid~", $uuid
		3478	and return;
		3479
		3480	warn "uuid file written ($value).\n";
		3481
		3482	1
		3483
		3484	}
		3485
		3486	sub write_uuid($$) {
		3487	my ($skip, $sync) = @_;
		3488
		3489	$sync ? write_uuid_sync $skip
		3490	: async { write_uuid_sync $skip };
2362	}	3491	}
2363		3492
2364	sub emergency_save() {	3493	sub emergency_save() {
2365	my $freeze_guard = cf::freeze_mainloop;	3494	my $freeze_guard = cf::freeze_mainloop;
2366		3495
…		…
2372	# and maps saved/destroyed asynchronously.	3501	# and maps saved/destroyed asynchronously.
2373	warn "begin emergency player save\n";	3502	warn "begin emergency player save\n";
2374	for my $login (keys %cf::PLAYER) {	3503	for my $login (keys %cf::PLAYER) {
2375	my $pl = $cf::PLAYER{$login} or next;	3504	my $pl = $cf::PLAYER{$login} or next;
2376	$pl->valid or next;	3505	$pl->valid or next;
		3506	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2377	$pl->save;	3507	$pl->save;
2378	}	3508	}
2379	warn "end emergency player save\n";	3509	warn "end emergency player save\n";
2380		3510
2381	warn "begin emergency map save\n";	3511	warn "begin emergency map save\n";
…		…
2387	warn "end emergency map save\n";	3517	warn "end emergency map save\n";
2388		3518
2389	warn "begin emergency database checkpoint\n";	3519	warn "begin emergency database checkpoint\n";
2390	BDB::db_env_txn_checkpoint $DB_ENV;	3520	BDB::db_env_txn_checkpoint $DB_ENV;
2391	warn "end emergency database checkpoint\n";	3521	warn "end emergency database checkpoint\n";
		3522
		3523	warn "begin write uuid\n";
		3524	write_uuid_sync 1;
		3525	warn "end write uuid\n";
2392	};	3526	};
2393		3527
2394	warn "leave emergency perl save\n";	3528	warn "leave emergency perl save\n";
2395	}	3529	}
2396		3530
…		…
2399		3533
2400	warn Carp::longmess "post_cleanup backtrace"	3534	warn Carp::longmess "post_cleanup backtrace"
2401	if $make_core;	3535	if $make_core;
2402	}	3536	}
2403		3537
2404	sub reload() {	3538	sub do_reload_perl() {
2405	# can/must only be called in main	3539	# can/must only be called in main
2406	if ($Coro::current != $Coro::main) {	3540	if ($Coro::current != $Coro::main) {
2407	warn "can only reload from main coroutine";	3541	warn "can only reload from main coroutine";
2408	return;	3542	return;
2409	}	3543	}
…		…
2411	warn "reloading...";	3545	warn "reloading...";
2412		3546
2413	warn "entering sync_job";	3547	warn "entering sync_job";
2414		3548
2415	cf::sync_job {	3549	cf::sync_job {
2416	cf::write_runtime; # external watchdog should not bark	3550	cf::write_runtime_sync; # external watchdog should not bark
2417	cf::emergency_save;	3551	cf::emergency_save;
2418	cf::write_runtime; # external watchdog should not bark	3552	cf::write_runtime_sync; # external watchdog should not bark
2419		3553
2420	warn "syncing database to disk";	3554	warn "syncing database to disk";
2421	BDB::db_env_txn_checkpoint $DB_ENV;	3555	BDB::db_env_txn_checkpoint $DB_ENV;
2422		3556
2423	# if anything goes wrong in here, we should simply crash as we already saved	3557	# if anything goes wrong in here, we should simply crash as we already saved
2424
2425	warn "cancelling all WF_AUTOCANCEL watchers";
2426	for (Event::all_watchers) {
2427	$_->cancel if $_->data & WF_AUTOCANCEL;
2428	}
2429		3558
2430	warn "flushing outstanding aio requests";	3559	warn "flushing outstanding aio requests";
2431	for (;;) {	3560	for (;;) {
2432	BDB::flush;	3561	BDB::flush;
2433	IO::AIO::flush;	3562	IO::AIO::flush;
2434	Coro::cede;	3563	Coro::cede_notself;
2435	last unless IO::AIO::nreqs || BDB::nreqs;	3564	last unless IO::AIO::nreqs || BDB::nreqs;
2436	warn "iterate...";	3565	warn "iterate...";
2437	}	3566	}
2438		3567
2439	++$RELOAD;	3568	++$RELOAD;
…		…
2443	%EXT_CORO = ();	3572	%EXT_CORO = ();
2444		3573
2445	warn "removing commands";	3574	warn "removing commands";
2446	%COMMAND = ();	3575	%COMMAND = ();
2447		3576
2448	warn "removing ext commands";	3577	warn "removing ext/exti commands";
2449	%EXTCMD = ();	3578	%EXTCMD = ();
		3579	%EXTICMD = ();
2450		3580
2451	warn "unloading/nuking all extensions";	3581	warn "unloading/nuking all extensions";
2452	for my $pkg (@EXTS) {	3582	for my $pkg (@EXTS) {
2453	warn "... unloading $pkg";	3583	warn "... unloading $pkg";
2454		3584
…		…
2484	Symbol::delete_package "safe::$_"	3614	Symbol::delete_package "safe::$_"
2485	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3615	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2486		3616
2487	warn "unloading cf.pm \"a bit\"";	3617	warn "unloading cf.pm \"a bit\"";
2488	delete $INC{"cf.pm"};	3618	delete $INC{"cf.pm"};
		3619	delete $INC{"cf/pod.pm"};
2489		3620
2490	# don't, removes xs symbols, too,	3621	# don't, removes xs symbols, too,
2491	# and global variables created in xs	3622	# and global variables created in xs
2492	#Symbol::delete_package __PACKAGE__;	3623	#Symbol::delete_package __PACKAGE__;
2493		3624
…		…
2496	warn "reloading cf.pm";	3627	warn "reloading cf.pm";
2497	require cf;	3628	require cf;
2498	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3629	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2499		3630
2500	warn "loading config and database again";	3631	warn "loading config and database again";
2501	cf::cfg_load;	3632	cf::reload_config;
2502		3633
2503	warn "loading extensions";	3634	warn "loading extensions";
2504	cf::load_extensions;	3635	cf::load_extensions;
2505		3636
2506	warn "reattaching attachments to objects/players";	3637	warn "reattaching attachments to objects/players";
…		…
2508	warn "reattaching attachments to maps";	3639	warn "reattaching attachments to maps";
2509	reattach $_ for values %MAP;	3640	reattach $_ for values %MAP;
2510	warn "reattaching attachments to players";	3641	warn "reattaching attachments to players";
2511	reattach $_ for values %PLAYER;	3642	reattach $_ for values %PLAYER;
2512		3643
2513	warn "loading reloadable resources";
2514	reload_resources;
2515
2516	warn "leaving sync_job";	3644	warn "leaving sync_job";
2517		3645
2518	1	3646	1
2519	} or do {	3647	} or do {
2520	warn $@;	3648	warn $@;
2521	warn "error while reloading, exiting.";	3649	cf::cleanup "error while reloading, exiting.";
2522	exit 1;
2523	};	3650	};
2524		3651
2525	warn "reloaded";	3652	warn "reloaded";
2526	};	3653	};
2527		3654
2528	our $RELOAD_WATCHER; # used only during reload	3655	our $RELOAD_WATCHER; # used only during reload
2529		3656
		3657	sub reload_perl() {
		3658	# doing reload synchronously and two reloads happen back-to-back,
		3659	# coro crashes during coro_state_free->destroy here.
		3660
		3661	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
		3662	do_reload_perl;
		3663	undef $RELOAD_WATCHER;
		3664	};
		3665	}
		3666
2530	register_command "reload" => sub {	3667	register_command "reload" => sub {
2531	my ($who, $arg) = @_;	3668	my ($who, $arg) = @_;
2532		3669
2533	if ($who->flag (FLAG_WIZ)) {	3670	if ($who->flag (FLAG_WIZ)) {
2534	$who->message ("reloading server.");	3671	$who->message ("reloading server.");
2535		3672	async {
2536	# doing reload synchronously and two reloads happen back-to-back,	3673	$Coro::current->{desc} = "perl_reload";
2537	# coro crashes during coro_state_free->destroy here.
2538
2539	$RELOAD_WATCHER ||= Event->timer (
2540	reentrant => 0,
2541	after => 0,
2542	data => WF_AUTOCANCEL,
2543	cb => sub {
2544	reload;	3674	reload_perl;
2545	undef $RELOAD_WATCHER;
2546	},
2547	);	3675	};
2548	}	3676	}
2549	};	3677	};
2550		3678
2551	unshift @INC, $LIBDIR;	3679	unshift @INC, $LIBDIR;
2552		3680
2553	my $bug_warning = 0;	3681	my $bug_warning = 0;
2554		3682
2555	$TICK_WATCHER = Event->timer (	3683	our @WAIT_FOR_TICK;
2556	reentrant => 0,	3684	our @WAIT_FOR_TICK_BEGIN;
2557	parked => 1,	3685
2558	prio => 0,	3686	sub wait_for_tick {
2559	at => $NEXT_TICK || $TICK,	3687	return if tick_inhibit;
2560	data => WF_AUTOCANCEL,	3688	return if $Coro::current == $Coro::main;
2561	cb => sub {	3689
		3690	my $signal = new Coro::Signal;
		3691	push @WAIT_FOR_TICK, $signal;
		3692	$signal->wait;
		3693	}
		3694
		3695	sub wait_for_tick_begin {
		3696	return if tick_inhibit;
		3697	return if $Coro::current == $Coro::main;
		3698
		3699	my $signal = new Coro::Signal;
		3700	push @WAIT_FOR_TICK_BEGIN, $signal;
		3701	$signal->wait;
		3702	}
		3703
		3704	sub tick {
2562	if ($Coro::current != $Coro::main) {	3705	if ($Coro::current != $Coro::main) {
2563	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3706	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2564	unless ++$bug_warning > 10;	3707	unless ++$bug_warning > 10;
2565	return;	3708	return;
2566	}	3709	}
2567		3710
2568	$NOW = Event::time;
2569
2570	cf::server_tick; # one server iteration	3711	cf::server_tick; # one server iteration
2571	$RUNTIME += $TICK;
2572	$NEXT_TICK += $TICK;
2573		3712
2574	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3713	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2575	$NEXT_RUNTIME_WRITE = $NOW + 10;	3714	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2576	Coro::async_pool {	3715	Coro::async_pool {
		3716	$Coro::current->{desc} = "runtime saver";
2577	write_runtime	3717	write_runtime_sync
2578	or warn "ERROR: unable to write runtime file: $!";	3718	or warn "ERROR: unable to write runtime file: $!";
2579	};
2580	}	3719	};
2581
2582	$WAIT_FOR_TICK->broadcast;
2583	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2584
2585	# my $AFTER = Event::time;
2586	# warn $AFTER - $NOW;#d#
2587
2588	# if we are delayed by four ticks or more, skip them all
2589	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2590
2591	$TICK_WATCHER->at ($NEXT_TICK);
2592	$TICK_WATCHER->start;
2593	},	3720	}
2594	);	3721
		3722	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3723	$sig->send;
		3724	}
		3725	while (my $sig = shift @WAIT_FOR_TICK) {
		3726	$sig->send;
		3727	}
		3728
		3729	$LOAD = ($NOW - $TICK_START) / $TICK;
		3730	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3731
		3732	if (0) {
		3733	if ($NEXT_TICK) {
		3734	my $jitter = $TICK_START - $NEXT_TICK;
		3735	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3736	warn "jitter $JITTER\n";#d#
		3737	}
		3738	}
		3739	}
2595		3740
2596	{	3741	{
2597	BDB::max_poll_time $TICK * 0.1;	3742	# configure BDB
2598	$BDB_POLL_WATCHER = Event->io (	3743
2599	reentrant => 0,
2600	fd => BDB::poll_fileno,
2601	poll => 'r',
2602	prio => 0,
2603	data => WF_AUTOCANCEL,
2604	cb => \&BDB::poll_cb,
2605	);
2606	BDB::min_parallel 8;	3744	BDB::min_parallel 8;
2607		3745	BDB::max_poll_reqs $TICK * 0.1;
2608	BDB::set_sync_prepare {	3746	$Coro::BDB::WATCHER->priority (1);
2609	my $status;
2610	my $current = $Coro::current;
2611	(
2612	sub {
2613	$status = $!;
2614	$current->ready; undef $current;
2615	},
2616	sub {
2617	Coro::schedule while defined $current;
2618	$! = $status;
2619	},
2620	)
2621	};
2622		3747
2623	unless ($DB_ENV) {	3748	unless ($DB_ENV) {
2624	$DB_ENV = BDB::db_env_create;	3749	$DB_ENV = BDB::db_env_create;
		3750	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3751	| BDB::LOG_AUTOREMOVE, 1);
		3752	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3753	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2625		3754
2626	cf::sync_job {	3755	cf::sync_job {
2627	eval {	3756	eval {
2628	BDB::db_env_open	3757	BDB::db_env_open
2629	$DB_ENV,	3758	$DB_ENV,
2630	$BDB_ENV_DIR,	3759	$BDBDIR,
2631	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3760	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2632	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3761	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2633	0666;	3762	0666;
2634		3763
2635	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3764	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2636
2637	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2638	$DB_ENV->set_lk_detect;
2639	};	3765	};
2640		3766
2641	cf::cleanup "db_env_open(db): $@" if $@;	3767	cf::cleanup "db_env_open(db): $@" if $@;
2642	};	3768	};
2643	}	3769	}
		3770
		3771	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3772	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3773	};
		3774	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3775	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3776	};
		3777	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3778	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3779	};
2644	}	3780	}
2645		3781
2646	{	3782	{
		3783	# configure IO::AIO
		3784
2647	IO::AIO::min_parallel 8;	3785	IO::AIO::min_parallel 8;
2648
2649	undef $Coro::AIO::WATCHER;
2650	IO::AIO::max_poll_time $TICK * 0.1;	3786	IO::AIO::max_poll_time $TICK * 0.1;
2651	$AIO_POLL_WATCHER = Event->io (	3787	$Coro::AIO::WATCHER->priority (1);
2652	reentrant => 0,
2653	data => WF_AUTOCANCEL,
2654	fd => IO::AIO::poll_fileno,
2655	poll => 'r',
2656	prio => 6,
2657	cb => \&IO::AIO::poll_cb,
2658	);
2659	}	3788	}
		3789
		3790	my $_log_backtrace;
		3791
		3792	sub _log_backtrace {
		3793	my ($msg, @addr) = @_;
		3794
		3795	$msg =~ s/\n//;
		3796
		3797	# limit the # of concurrent backtraces
		3798	if ($_log_backtrace < 2) {
		3799	++$_log_backtrace;
		3800	async {
		3801	$Coro::current->{desc} = "abt $msg";
		3802
		3803	my @bt = fork_call {
		3804	@addr = map { sprintf "%x", $_ } @addr;
		3805	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3806	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3807	or die "addr2line: $!";
		3808
		3809	my @funcs;
		3810	my @res = <$fh>;
		3811	chomp for @res;
		3812	while (@res) {
		3813	my ($func, $line) = splice @res, 0, 2, ();
		3814	push @funcs, "[$func] $line";
		3815	}
		3816
		3817	@funcs
		3818	};
		3819
		3820	LOG llevInfo, "[ABT] $msg\n";
		3821	LOG llevInfo, "[ABT] $_\n" for @bt;
		3822	--$_log_backtrace;
		3823	};
		3824	} else {
		3825	LOG llevInfo, "[ABT] $msg\n";
		3826	LOG llevInfo, "[ABT] [suppressed]\n";
		3827	}
		3828	}
		3829
		3830	# load additional modules
		3831	use cf::pod;
2660		3832
2661	END { cf::emergency_save }	3833	END { cf::emergency_save }
2662		3834
2663	1	3835	1
2664		3836

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