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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.273 by root, Mon Jun 4 12:19:08 2007 UTC vs.
Revision 1.519 by root, Fri Apr 16 02:32:25 2010 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify it under
		7	# the terms of the Affero GNU General Public License as published by the
		8	# Free Software Foundation, either version 3 of the License, or (at your
		9	# 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 Affero GNU General Public License
		17	# and the GNU General Public License along with this program. If not, see
		18	# <http://www.gnu.org/licenses/>.
		19	#
		20	# The authors can be reached via e-mail to <support@deliantra.net>
		21	#
		22
1	package cf;	23	package cf;
2		24
		25	use 5.10.0;
3	use utf8;	26	use utf8;
4	use strict;	27	use strict qw(vars subs);
5		28
6	use Symbol;	29	use Symbol;
7	use List::Util;	30	use List::Util;
8	use Socket;	31	use Socket;
9	use Storable;	32	use EV;
10	use Event;
11	use Opcode;	33	use Opcode;
12	use Safe;	34	use Safe;
13	use Safe::Hole;	35	use Safe::Hole;
		36	use Storable ();
		37	use Carp ();
14		38
		39	use Guard ();
15	use Coro 3.61 ();	40	use Coro ();
16	use Coro::State;	41	use Coro::State;
17	use Coro::Handle;	42	use Coro::Handle;
		43	use Coro::EV;
18	use Coro::Event;	44	use Coro::AnyEvent;
19	use Coro::Timer;	45	use Coro::Timer;
20	use Coro::Signal;	46	use Coro::Signal;
21	use Coro::Semaphore;	47	use Coro::Semaphore;
		48	use Coro::SemaphoreSet;
		49	use Coro::AnyEvent;
22	use Coro::AIO;	50	use Coro::AIO;
		51	use Coro::BDB 1.6;
23	use Coro::Storable;	52	use Coro::Storable;
		53	use Coro::Util ();
24		54
		55	use JSON::XS 2.01 ();
25	use BDB ();	56	use BDB ();
26	use Data::Dumper;	57	use Data::Dumper;
27	use Digest::MD5;
28	use Fcntl;	58	use Fcntl;
29	use YAML::Syck ();	59	use YAML::XS ();
30	use IO::AIO 2.32 ();	60	use IO::AIO ();
31	use Time::HiRes;	61	use Time::HiRes;
32	use Compress::LZF;	62	use Compress::LZF;
		63	use Digest::MD5 ();
		64
		65	AnyEvent::detect;
33		66
34	# configure various modules to our taste	67	# configure various modules to our taste
35	#	68	#
36	$Storable::canonical = 1; # reduce rsync transfers	69	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	70	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		71
		72	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		73
		74	# make sure c-lzf reinitialises itself
		75	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	76	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
39		77
40	$Event::Eval = 1; # no idea why this is required, but it is	78	# strictly for debugging
41		79	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
43	$YAML::Syck::ImplicitUnicode = 1;
44
45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
46		80
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	81	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
48		82
49	our %COMMAND = ();	83	our %COMMAND = ();
50	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
51		85
52	our @EXTS = (); # list of extension package names	86	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	89	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	90	our %EXT_MAP = (); # pluggable maps
56		91
57	our $RELOAD; # number of reloads so far	92	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	93	our @EVENT;
		94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
59		96
60	our $CONFDIR = confdir;	97	our $CONFDIR = confdir;
61	our $DATADIR = datadir;	98	our $DATADIR = datadir;
62	our $LIBDIR = "$DATADIR/ext";	99	our $LIBDIR = "$DATADIR/ext";
63	our $PODDIR = "$DATADIR/pod";	100	our $PODDIR = "$DATADIR/pod";
64	our $MAPDIR = "$DATADIR/" . mapdir;	101	our $MAPDIR = "$DATADIR/" . mapdir;
65	our $LOCALDIR = localdir;	102	our $LOCALDIR = localdir;
66	our $TMPDIR = "$LOCALDIR/" . tmpdir;	103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;	104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;	105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
69	our $RANDOMDIR = "$LOCALDIR/random";	106	our $RANDOMDIR = "$LOCALDIR/random";
70	our $BDBDIR = "$LOCALDIR/db";	107	our $BDBDIR = "$LOCALDIR/db";
		108	our $PIDFILE = "$LOCALDIR/pid";
		109	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		110
		111	our %RESOURCE;
		112
		113	our $OUTPUT_RATE_MIN = 4000;
		114	our $OUTPUT_RATE_MAX = 100000;
71		115
72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	116	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
73	our $TICK_WATCHER;
74	our $AIO_POLL_WATCHER;
75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	117	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
76	our $NEXT_TICK;	118	our $NEXT_TICK;
77	our $NOW;
78	our $USE_FSYNC = 1; # use fsync to write maps - default off	119	our $USE_FSYNC = 1; # use fsync to write maps - default on
79		120
		121	our $BDB_DEADLOCK_WATCHER;
		122	our $BDB_CHECKPOINT_WATCHER;
80	our $BDB_POLL_WATCHER;	123	our $BDB_TRICKLE_WATCHER;
81	our $DB_ENV;	124	our $DB_ENV;
		125
		126	our @EXTRA_MODULES = qw(pod match mapscript);
82		127
83	our %CFG;	128	our %CFG;
84		129
85	our $UPTIME; $UPTIME ||= time;	130	our $UPTIME; $UPTIME ||= time;
86	our $RUNTIME;	131	our $RUNTIME;
		132	our $NOW;
87		133
88	our %PLAYER; # all users	134	our (%PLAYER, %PLAYER_LOADING); # all users
89	our %MAP; # all maps	135	our (%MAP, %MAP_LOADING ); # all maps
90	our $LINK_MAP; # the special {link} map, which is always available	136	our $LINK_MAP; # the special {link} map, which is always available
91		137
92	# used to convert map paths into valid unix filenames by replacing / by ∕	138	# used to convert map paths into valid unix filenames by replacing / by ∕
93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	139	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
94		140
95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)	141	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
96	our $LOADAVG; # same thing, but with alpha-smoothing	142	our $LOADAVG; # same thing, but with alpha-smoothing
		143	our $JITTER; # average jitter
97	our $tick_start; # for load detecting purposes	144	our $TICK_START; # for load detecting purposes
		145
		146	our @POST_INIT;
		147
		148	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		149	our $REALLY_UNLOOP; # never set to true, please :)
98		150
99	binmode STDOUT;	151	binmode STDOUT;
100	binmode STDERR;	152	binmode STDERR;
101		153
102	# read virtual server time, if available	154	# read virtual server time, if available
103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {	155	unless ($RUNTIME || !-e $RUNTIMEFILE) {
104	open my $fh, "<", "$LOCALDIR/runtime"	156	open my $fh, "<", $RUNTIMEFILE
105	or die "unable to read runtime file: $!";	157	or die "unable to read $RUNTIMEFILE file: $!";
106	$RUNTIME = <$fh> + 0.;	158	$RUNTIME = <$fh> + 0.;
107	}	159	}
		160
		161	eval "sub TICK() { $TICK } 1" or die;
108		162
109	mkdir $_	163	mkdir $_
110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;	164	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
111		165
112	our $EMERGENCY_POSITION;	166	our $EMERGENCY_POSITION;
113		167
114	sub cf::map::normalise;	168	sub cf::map::normalise;
		169
		170	#############################################################################
		171
		172	%REFLECT = ();
		173	for (@REFLECT) {
		174	my $reflect = JSON::XS::decode_json $_;
		175	$REFLECT{$reflect->{class}} = $reflect;
		176	}
		177
		178	# this is decidedly evil
		179	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
115		180
116	#############################################################################	181	#############################################################################
117		182
118	=head2 GLOBAL VARIABLES	183	=head2 GLOBAL VARIABLES
119		184
…		…
155		220
156	The raw value load value from the last tick.	221	The raw value load value from the last tick.
157		222
158	=item %cf::CFG	223	=item %cf::CFG
159		224
160	Configuration for the server, loaded from C</etc/crossfire/config>, or	225	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
161	from wherever your confdir points to.	226	from wherever your confdir points to.
162		227
163	=item cf::wait_for_tick, cf::wait_for_tick_begin	228	=item cf::wait_for_tick, cf::wait_for_tick_begin
164		229
165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	230	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
166	returns directly I<after> the tick processing (and consequently, can only wake one process	231	returns directly I<after> the tick processing (and consequently, can only wake one process
167	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	232	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
168		233
		234	=item @cf::INVOKE_RESULTS
		235
		236	This array contains the results of the last C<invoke ()> call. When
		237	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		238	that call.
		239
		240	=item %cf::REFLECT
		241
		242	Contains, for each (C++) class name, a hash reference with information
		243	about object members (methods, scalars, arrays and flags) and other
		244	metadata, which is useful for introspection.
		245
169	=back	246	=back
170		247
171	=cut	248	=cut
172		249
173	BEGIN {	250	$Coro::State::WARNHOOK = sub {
174	*CORE::GLOBAL::warn = sub {
175	my $msg = join "", @_;	251	my $msg = join "", @_;
176		252
177	$msg .= "\n"	253	$msg .= "\n"
178	unless $msg =~ /\n$/;	254	unless $msg =~ /\n$/;
179		255
180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	256	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
181		257
182	utf8::encode $msg;
183	LOG llevError, $msg;	258	LOG llevError, $msg;
184	};	259	};
185	}	260
		261	$Coro::State::DIEHOOK = sub {
		262	return unless $^S eq 0; # "eq", not "=="
		263
		264	warn Carp::longmess $_[0];
		265
		266	if ($Coro::current == $Coro::main) {#d#
		267	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		268	return;#d#
		269	}#d#
		270
		271	# kill coroutine otherwise
		272	Coro::terminate
		273	};
186		274
187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	275	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	276	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	277	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	278	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
…		…
197	for my $pkg (qw(	285	for my $pkg (qw(
198	cf::global cf::attachable	286	cf::global cf::attachable
199	cf::object cf::object::player	287	cf::object cf::object::player
200	cf::client cf::player	288	cf::client cf::player
201	cf::arch cf::living	289	cf::arch cf::living
		290	cf::map cf::mapspace
202	cf::map cf::party cf::region	291	cf::party cf::region
203	)) {	292	)) {
204	no strict 'refs';
205	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	293	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
206	}	294	}
207		295
208	$Event::DIED = sub {	296	$EV::DIED = sub {
209	warn "error in event callback: @_";	297	Carp::cluck "error in event callback: @_";
210	};	298	};
		299
		300	#############################################################################
211		301
212	=head2 UTILITY FUNCTIONS	302	=head2 UTILITY FUNCTIONS
213		303
214	=over 4	304	=over 4
215		305
…		…
234	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	324	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
235	$d	325	$d
236	} || "[unable to dump $_[0]: '$@']";	326	} || "[unable to dump $_[0]: '$@']";
237	}	327	}
238		328
239	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
240
241	=item $ref = cf::from_json $json	329	=item $ref = cf::decode_json $json
242		330
243	Converts a JSON string into the corresponding perl data structure.	331	Converts a JSON string into the corresponding perl data structure.
244		332
245	=item $json = cf::to_json $ref	333	=item $json = cf::encode_json $ref
246		334
247	Converts a perl data structure into its JSON representation.	335	Converts a perl data structure into its JSON representation.
248		336
		337	=cut
		338
		339	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		340
		341	sub encode_json($) { $json_coder->encode ($_[0]) }
		342	sub decode_json($) { $json_coder->decode ($_[0]) }
		343
		344	=item cf::post_init { BLOCK }
		345
		346	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		347	but I<before> the server starts ticking again.
		348
		349	The cdoeblock will have a single boolean argument to indicate whether this
		350	is a reload or not.
		351
		352	=cut
		353
		354	sub post_init(&) {
		355	push @POST_INIT, shift;
		356	}
		357
249	=item cf::lock_wait $string	358	=item cf::lock_wait $string
250		359
251	Wait until the given lock is available. See cf::lock_acquire.	360	Wait until the given lock is available. See cf::lock_acquire.
252		361
253	=item my $lock = cf::lock_acquire $string	362	=item my $lock = cf::lock_acquire $string
254		363
255	Wait until the given lock is available and then acquires it and returns	364	Wait until the given lock is available and then acquires it and returns
256	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	365	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
257	for example when the coroutine gets canceled), the lock is automatically	366	for example when the coroutine gets canceled), the lock is automatically
258	returned.	367	returned.
259		368
		369	Locks are *not* recursive, locking from the same coro twice results in a
		370	deadlocked coro.
		371
260	Lock names should begin with a unique identifier (for example, cf::map::find	372	Lock names should begin with a unique identifier (for example, cf::map::find
261	uses map_find and cf::map::load uses map_load).	373	uses map_find and cf::map::load uses map_load).
262		374
263	=item $locked = cf::lock_active $string	375	=item $locked = cf::lock_active $string
264		376
265	Return true if the lock is currently active, i.e. somebody has locked it.	377	Return true if the lock is currently active, i.e. somebody has locked it.
266		378
267	=cut	379	=cut
268		380
269	our %LOCK;	381	our $LOCKS = new Coro::SemaphoreSet;
270		382
271	sub lock_wait($) {	383	sub lock_wait($) {
272	my ($key) = @_;	384	$LOCKS->wait ($_[0]);
273
274	# wait for lock, if any
275	while ($LOCK{$key}) {
276	push @{ $LOCK{$key} }, $Coro::current;
277	Coro::schedule;
278	}
279	}	385	}
280		386
281	sub lock_acquire($) {	387	sub lock_acquire($) {
282	my ($key) = @_;	388	$LOCKS->guard ($_[0])
283
284	# wait, to be sure we are not locked
285	lock_wait $key;
286
287	$LOCK{$key} = [];
288
289	Coro::guard {
290	# wake up all waiters, to be on the safe side
291	$_->ready for @{ delete $LOCK{$key} };
292	}
293	}	389	}
294		390
295	sub lock_active($) {	391	sub lock_active($) {
296	my ($key) = @_;	392	$LOCKS->count ($_[0]) < 1
297
298	! ! $LOCK{$key}
299	}	393	}
300		394
301	sub freeze_mainloop {	395	sub freeze_mainloop {
302	return unless $TICK_WATCHER->is_active;	396	tick_inhibit_inc;
303		397
304	my $guard = Coro::guard {	398	&Guard::guard (\&tick_inhibit_dec);
305	$TICK_WATCHER->start;	399	}
		400
		401	=item cf::periodic $interval, $cb
		402
		403	Like EV::periodic, but randomly selects a starting point so that the actions
		404	get spread over time.
		405
		406	=cut
		407
		408	sub periodic($$) {
		409	my ($interval, $cb) = @_;
		410
		411	my $start = rand List::Util::min 180, $interval;
		412
		413	EV::periodic $start, $interval, 0, $cb
		414	}
		415
		416	=item cf::get_slot $time[, $priority[, $name]]
		417
		418	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		419	This call blocks and returns only when you have at least C<$time> seconds
		420	of cpu time till the next tick. The slot is only valid till the next cede.
		421
		422	The optional C<$name> can be used to identify the job to run. It might be
		423	used for statistical purposes and should identify the same time-class.
		424
		425	Useful for short background jobs.
		426
		427	=cut
		428
		429	our @SLOT_QUEUE;
		430	our $SLOT_QUEUE;
		431	our $SLOT_DECAY = 0.9;
		432
		433	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		434	$SLOT_QUEUE = Coro::async {
		435	$Coro::current->desc ("timeslot manager");
		436
		437	my $signal = new Coro::Signal;
		438	my $busy;
		439
		440	while () {
		441	next_job:
		442
		443	my $avail = cf::till_tick;
		444
		445	for (0 .. $#SLOT_QUEUE) {
		446	if ($SLOT_QUEUE[$_][0] <= $avail) {
		447	$busy = 0;
		448	my $job = splice @SLOT_QUEUE, $_, 1, ();
		449	$job->[2]->send;
		450	Coro::cede;
		451	goto next_job;
		452	} else {
		453	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		454	}
		455	}
		456
		457	if (@SLOT_QUEUE) {
		458	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		459	push @cf::WAIT_FOR_TICK, $signal;
		460	$signal->wait;
		461	} else {
		462	$busy = 0;
		463	Coro::schedule;
		464	}
306	};	465	}
307	$TICK_WATCHER->stop;	466	};
308	$guard	467
		468	sub get_slot($;$$) {
		469	return if tick_inhibit || $Coro::current == $Coro::main;
		470
		471	my ($time, $pri, $name) = @_;
		472
		473	$time = clamp $time, 0.01, $TICK * .6;
		474
		475	my $sig = new Coro::Signal;
		476
		477	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		478	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		479	$SLOT_QUEUE->ready;
		480	$sig->wait;
309	}	481	}
310		482
311	=item cf::async { BLOCK }	483	=item cf::async { BLOCK }
312		484
313	Currently the same as Coro::async_pool, meaning you cannot use	485	Currently the same as Coro::async_pool, meaning you cannot use
…		…
318		490
319	BEGIN { *async = \&Coro::async_pool }	491	BEGIN { *async = \&Coro::async_pool }
320		492
321	=item cf::sync_job { BLOCK }	493	=item cf::sync_job { BLOCK }
322		494
323	The design of crossfire+ requires that the main coro ($Coro::main) is	495	The design of Deliantra requires that the main coroutine ($Coro::main)
324	always able to handle events or runnable, as crossfire+ is only partly	496	is always able to handle events or runnable, as Deliantra is only
325	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	497	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		498	acceptable.
326		499
327	If it must be done, put the blocking parts into C<sync_job>. This will run	500	If it must be done, put the blocking parts into C<sync_job>. This will run
328	the given BLOCK in another coroutine while waiting for the result. The	501	the given BLOCK in another coroutine while waiting for the result. The
329	server will be frozen during this time, so the block should either finish	502	server will be frozen during this time, so the block should either finish
330	fast or be very important.	503	fast or be very important.
…		…
333		506
334	sub sync_job(&) {	507	sub sync_job(&) {
335	my ($job) = @_;	508	my ($job) = @_;
336		509
337	if ($Coro::current == $Coro::main) {	510	if ($Coro::current == $Coro::main) {
338	my $time = Event::time;	511	my $time = AE::time;
339		512
340	# this is the main coro, too bad, we have to block	513	# this is the main coro, too bad, we have to block
341	# till the operation succeeds, freezing the server :/	514	# till the operation succeeds, freezing the server :/
342		515
343	# TODO: use suspend/resume instead	516	LOG llevError, Carp::longmess "sync job";#d#
344	# (but this is cancel-safe)	517
345	my $freeze_guard = freeze_mainloop;	518	my $freeze_guard = freeze_mainloop;
346		519
347	my $busy = 1;	520	my $busy = 1;
348	my @res;	521	my @res;
349		522
350	(async {	523	(async {
		524	$Coro::current->desc ("sync job coro");
351	@res = eval { $job->() };	525	@res = eval { $job->() };
352	warn $@ if $@;	526	warn $@ if $@;
353	undef $busy;	527	undef $busy;
354	})->prio (Coro::PRIO_MAX);	528	})->prio (Coro::PRIO_MAX);
355		529
356	while ($busy) {	530	while ($busy) {
357	Coro::cede or Event::one_event;	531	if (Coro::nready) {
		532	Coro::cede_notself;
		533	} else {
		534	EV::loop EV::LOOP_ONESHOT;
358	}	535	}
		536	}
359		537
360	$time = Event::time - $time;	538	my $time = AE::time - $time;
361		539
362	LOG llevError | logBacktrace, Carp::longmess "long sync job"
363	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
364
365	$tick_start += $time; # do not account sync jobs to server load	540	$TICK_START += $time; # do not account sync jobs to server load
366		541
367	wantarray ? @res : $res[0]	542	wantarray ? @res : $res[0]
368	} else {	543	} else {
369	# we are in another coroutine, how wonderful, everything just works	544	# we are in another coroutine, how wonderful, everything just works
370		545
…		…
390	$EXT_CORO{$coro+0} = $coro;	565	$EXT_CORO{$coro+0} = $coro;
391		566
392	$coro	567	$coro
393	}	568	}
394		569
395	sub write_runtime {	570	=item fork_call { }, $args
396	my $runtime = "$LOCALDIR/runtime";
397		571
398	# first touch the runtime file to show we are still running:	572	Executes the given code block with the given arguments in a seperate
399	# the fsync below can take a very very long time.	573	process, returning the results. Everything must be serialisable with
		574	Coro::Storable. May, of course, block. Note that the executed sub may
		575	never block itself or use any form of event handling.
400		576
401	IO::AIO::aio_utime $runtime, undef, undef;	577	=cut
402		578
403	my $guard = cf::lock_acquire "write_runtime";	579	sub fork_call(&@) {
		580	my ($cb, @args) = @_;
404		581
405	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	582	# we seemingly have to make a local copy of the whole thing,
406	or return;	583	# otherwise perl prematurely frees the stuff :/
		584	# TODO: investigate and fix (likely this will be rather laborious)
407		585
408	my $value = $cf::RUNTIME + 90 + 10;	586	my @res = Coro::Util::fork_eval {
409	# 10 is the runtime save interval, for a monotonic clock	587	reset_signals;
410	# 60 allows for the watchdog to kill the server.	588	&$cb
		589	}, @args;
411		590
412	(aio_write $fh, 0, (length $value), $value, 0) <= 0	591	wantarray ? @res : $res[-1]
413	and return;	592	}
414		593
415	# always fsync - this file is important	594	sub objinfo {
416	aio_fsync $fh
417	and return;
418
419	# touch it again to show we are up-to-date
420	aio_utime $fh, undef, undef;
421
422	close $fh
423	or return;
424
425	aio_rename "$runtime~", $runtime
426	and return;
427
428	warn "runtime file written.\n";#d#
429
430	1	595	(
		596	"counter value" => cf::object::object_count,
		597	"objects created" => cf::object::create_count,
		598	"objects destroyed" => cf::object::destroy_count,
		599	"freelist size" => cf::object::free_count,
		600	"allocated objects" => cf::object::objects_size,
		601	"active objects" => cf::object::actives_size,
		602	)
		603	}
		604
		605	=item $coin = coin_from_name $name
		606
		607	=cut
		608
		609	our %coin_alias = (
		610	"silver" => "silvercoin",
		611	"silvercoin" => "silvercoin",
		612	"silvercoins" => "silvercoin",
		613	"gold" => "goldcoin",
		614	"goldcoin" => "goldcoin",
		615	"goldcoins" => "goldcoin",
		616	"platinum" => "platinacoin",
		617	"platinumcoin" => "platinacoin",
		618	"platinumcoins" => "platinacoin",
		619	"platina" => "platinacoin",
		620	"platinacoin" => "platinacoin",
		621	"platinacoins" => "platinacoin",
		622	"royalty" => "royalty",
		623	"royalties" => "royalty",
		624	);
		625
		626	sub coin_from_name($) {
		627	$coin_alias{$_[0]}
		628	? cf::arch::find $coin_alias{$_[0]}
		629	: undef
		630	}
		631
		632	=item $value = cf::db_get $family => $key
		633
		634	Returns a single value from the environment database.
		635
		636	=item cf::db_put $family => $key => $value
		637
		638	Stores the given C<$value> in the family. It can currently store binary
		639	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		640
		641	=item $db = cf::db_table "name"
		642
		643	Create and/or open a new database table. The string must not be "db" and must be unique
		644	within each server.
		645
		646	=cut
		647
		648	sub db_table($) {
		649	my ($name) = @_;
		650	my $db = BDB::db_create $DB_ENV;
		651
		652	eval {
		653	$db->set_flags (BDB::CHKSUM);
		654
		655	utf8::encode $name;
		656	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		657	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		658	cf::cleanup "db_open(db): $!" if $!;
		659	};
		660	cf::cleanup "db_open(db): $@" if $@;
		661
		662	$db
		663	}
		664
		665	our $DB;
		666
		667	sub db_init {
		668	cf::sync_job {
		669	$DB ||= db_table "db";
		670	};
		671	}
		672
		673	sub db_get($$) {
		674	my $key = "$_[0]/$_[1]";
		675
		676	cf::sync_job {
		677	BDB::db_get $DB, undef, $key, my $data;
		678
		679	$! ? ()
		680	: $data
		681	}
		682	}
		683
		684	sub db_put($$$) {
		685	BDB::dbreq_pri 4;
		686	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		687	}
		688
		689	=item cf::cache $id => [$paths...], $processversion => $process
		690
		691	Generic caching function that returns the value of the resource $id,
		692	caching and regenerating as required.
		693
		694	This function can block.
		695
		696	=cut
		697
		698	sub cache {
		699	my ($id, $src, $processversion, $process) = @_;
		700
		701	my $meta =
		702	join "\x00",
		703	$processversion,
		704	map {
		705	aio_stat $_
		706	and Carp::croak "$_: $!";
		707
		708	($_, (stat _)[7,9])
		709	} @$src;
		710
		711	my $dbmeta = db_get cache => "$id/meta";
		712	if ($dbmeta ne $meta) {
		713	# changed, we may need to process
		714
		715	my @data;
		716	my $md5;
		717
		718	for (0 .. $#$src) {
		719	0 <= aio_load $src->[$_], $data[$_]
		720	or Carp::croak "$src->[$_]: $!";
		721	}
		722
		723	# if processing is expensive, check
		724	# checksum first
		725	if (1) {
		726	$md5 =
		727	join "\x00",
		728	$processversion,
		729	map {
		730	cf::cede_to_tick;
		731	($src->[$_], Digest::MD5::md5_hex $data[$_])
		732	} 0.. $#$src;
		733
		734
		735	my $dbmd5 = db_get cache => "$id/md5";
		736	if ($dbmd5 eq $md5) {
		737	db_put cache => "$id/meta", $meta;
		738
		739	return db_get cache => "$id/data";
		740	}
		741	}
		742
		743	my $t1 = Time::HiRes::time;
		744	my $data = $process->(\@data);
		745	my $t2 = Time::HiRes::time;
		746
		747	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		748
		749	db_put cache => "$id/data", $data;
		750	db_put cache => "$id/md5" , $md5;
		751	db_put cache => "$id/meta", $meta;
		752
		753	return $data;
		754	}
		755
		756	db_get cache => "$id/data"
431	}	757	}
432		758
433	=item cf::datalog type => key => value, ...	759	=item cf::datalog type => key => value, ...
434		760
435	Log a datalog packet of the given type with the given key-value pairs.	761	Log a datalog packet of the given type with the given key-value pairs.
…		…
447		773
448	#############################################################################	774	#############################################################################
449		775
450	=head2 ATTACHABLE OBJECTS	776	=head2 ATTACHABLE OBJECTS
451		777
452	Many objects in crossfire are so-called attachable objects. That means you can	778	Many objects in deliantra are so-called attachable objects. That means you can
453	attach callbacks/event handlers (a collection of which is called an "attachment")	779	attach callbacks/event handlers (a collection of which is called an "attachment")
454	to it. All such attachable objects support the following methods.	780	to it. All such attachable objects support the following methods.
455		781
456	In the following description, CLASS can be any of C<global>, C<object>	782	In the following description, CLASS can be any of C<global>, C<object>
457	C<player>, C<client> or C<map> (i.e. the attachable objects in	783	C<player>, C<client> or C<map> (i.e. the attachable objects in
458	crossfire+).	784	Deliantra).
459		785
460	=over 4	786	=over 4
461		787
462	=item $attachable->attach ($attachment, key => $value...)	788	=item $attachable->attach ($attachment, key => $value...)
463		789
…		…
507	=item cf::CLASS::attachment $name, ...	833	=item cf::CLASS::attachment $name, ...
508		834
509	Register an attachment by C<$name> through which attachable objects of the	835	Register an attachment by C<$name> through which attachable objects of the
510	given CLASS can refer to this attachment.	836	given CLASS can refer to this attachment.
511		837
512	Some classes such as crossfire maps and objects can specify attachments	838	Some classes such as deliantra maps and objects can specify attachments
513	that are attached at load/instantiate time, thus the need for a name.	839	that are attached at load/instantiate time, thus the need for a name.
514		840
515	These calls expect any number of the following handler/hook descriptions:	841	These calls expect any number of the following handler/hook descriptions:
516		842
517	=over 4	843	=over 4
…		…
665	_attach $registry, $klass, @attach;	991	_attach $registry, $klass, @attach;
666	}	992	}
667		993
668	$obj->{$name} = \%arg;	994	$obj->{$name} = \%arg;
669	} else {	995	} else {
670	warn "object uses attachment '$name' that is not available, postponing.\n";	996	warn "object uses attachment '$name' which is not available, postponing.\n";
671	}	997	}
672		998
673	$obj->{_attachment}{$name} = undef;	999	$obj->{_attachment}{$name} = undef;
674	}	1000	}
675		1001
…		…
715	";	1041	";
716	die if $@;	1042	die if $@;
717	}	1043	}
718		1044
719	our $override;	1045	our $override;
720	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1046	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
721		1047
722	sub override {	1048	sub override {
723	$override = 1;	1049	$override = 1;
724	@invoke_results = ();	1050	@INVOKE_RESULTS = (@_);
725	}	1051	}
726		1052
727	sub do_invoke {	1053	sub do_invoke {
728	my $event = shift;	1054	my $event = shift;
729	my $callbacks = shift;	1055	my $callbacks = shift;
730		1056
731	@invoke_results = ();	1057	@INVOKE_RESULTS = ();
732		1058
733	local $override;	1059	local $override;
734		1060
735	for (@$callbacks) {	1061	for (@$callbacks) {
736	eval { &{$_->[1]} };	1062	eval { &{$_->[1]} };
…		…
745	}	1071	}
746		1072
747	0	1073	0
748	}	1074	}
749		1075
750	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1076	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
751		1077
752	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1078	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
753		1079
754	Generate an object-specific event with the given arguments.	1080	Generate an object-specific event with the given arguments.
755		1081
756	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1082	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
757	removed in future versions), and there is no public API to access override	1083	removed in future versions), and there is no public API to access override
758	results (if you must, access C<@cf::invoke_results> directly).	1084	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
759		1085
760	=back	1086	=back
761		1087
762	=cut	1088	=cut
763		1089
764	#############################################################################	1090	#############################################################################
765	# object support	1091	# object support
		1092
		1093	sub _object_equal($$);
		1094	sub _object_equal($$) {
		1095	my ($a, $b) = @_;
		1096
		1097	return 0 unless (ref $a) eq (ref $b);
		1098
		1099	if ("HASH" eq ref $a) {
		1100	my @ka = keys %$a;
		1101	my @kb = keys %$b;
		1102
		1103	return 0 if @ka != @kb;
		1104
		1105	for (0 .. $#ka) {
		1106	return 0 unless $ka[$_] eq $kb[$_];
		1107	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1108	}
		1109
		1110	} elsif ("ARRAY" eq ref $a) {
		1111
		1112	return 0 if @$a != @$b;
		1113
		1114	for (0 .. $#$a) {
		1115	return 0 unless _object_equal $a->[$_], $b->[$_];
		1116	}
		1117
		1118	} elsif ($a ne $b) {
		1119	return 0;
		1120	}
		1121
		1122	1
		1123	}
		1124
		1125	our $SLOW_MERGES;#d#
		1126	sub _can_merge {
		1127	my ($ob1, $ob2) = @_;
		1128
		1129	++$SLOW_MERGES;#d#
		1130
		1131	# we do the slow way here
		1132	return _object_equal $ob1, $ob2
		1133	}
766		1134
767	sub reattach {	1135	sub reattach {
768	# basically do the same as instantiate, without calling instantiate	1136	# basically do the same as instantiate, without calling instantiate
769	my ($obj) = @_;	1137	my ($obj) = @_;
770		1138
		1139	# no longer needed after getting rid of delete_package?
771	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1140	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
772		1141
773	my $registry = $obj->registry;	1142	my $registry = $obj->registry;
774		1143
775	@$registry = ();	1144	@$registry = ();
776		1145
…		…
791	cf::attachable->attach (	1160	cf::attachable->attach (
792	prio => -1000000,	1161	prio => -1000000,
793	on_instantiate => sub {	1162	on_instantiate => sub {
794	my ($obj, $data) = @_;	1163	my ($obj, $data) = @_;
795		1164
796	$data = from_json $data;	1165	$data = decode_json $data;
797		1166
798	for (@$data) {	1167	for (@$data) {
799	my ($name, $args) = @$_;	1168	my ($name, $args) = @$_;
800		1169
801	$obj->attach ($name, %{$args || {} });	1170	$obj->attach ($name, %{$args || {} });
…		…
817	sub object_freezer_save {	1186	sub object_freezer_save {
818	my ($filename, $rdata, $objs) = @_;	1187	my ($filename, $rdata, $objs) = @_;
819		1188
820	sync_job {	1189	sync_job {
821	if (length $$rdata) {	1190	if (length $$rdata) {
		1191	utf8::decode (my $decname = $filename);
822	warn sprintf "saving %s (%d,%d)\n",	1192	warn sprintf "saving %s (%d,%d)\n",
823	$filename, length $$rdata, scalar @$objs;	1193	$decname, length $$rdata, scalar @$objs;
824		1194
825	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1195	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
826	chmod SAVE_MODE, $fh;	1196	aio_chmod $fh, SAVE_MODE;
827	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1197	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
828	aio_fsync $fh if $cf::USE_FSYNC;	1198	if ($cf::USE_FSYNC) {
		1199	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1200	aio_fsync $fh;
		1201	}
829	close $fh;	1202	aio_close $fh;
830		1203
831	if (@$objs) {	1204	if (@$objs) {
832	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1205	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
833	chmod SAVE_MODE, $fh;	1206	aio_chmod $fh, SAVE_MODE;
834	my $data = Storable::nfreeze { version => 1, objs => $objs };	1207	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
835	aio_write $fh, 0, (length $data), $data, 0;	1208	aio_write $fh, 0, (length $data), $data, 0;
836	aio_fsync $fh if $cf::USE_FSYNC;	1209	if ($cf::USE_FSYNC) {
		1210	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1211	aio_fsync $fh;
		1212	}
837	close $fh;	1213	aio_close $fh;
838	aio_rename "$filename.pst~", "$filename.pst";	1214	aio_rename "$filename.pst~", "$filename.pst";
839	}	1215	}
840	} else {	1216	} else {
841	aio_unlink "$filename.pst";	1217	aio_unlink "$filename.pst";
842	}	1218	}
843		1219
844	aio_rename "$filename~", $filename;	1220	aio_rename "$filename~", $filename;
		1221
		1222	$filename =~ s%/[^/]+$%%;
		1223	aio_pathsync $filename if $cf::USE_FSYNC;
845	} else {	1224	} else {
846	warn "FATAL: $filename~: $!\n";	1225	warn "unable to save objects: $filename~: $!\n";
847	}	1226	}
848	} else {	1227	} else {
849	aio_unlink $filename;	1228	aio_unlink $filename;
850	aio_unlink "$filename.pst";	1229	aio_unlink "$filename.pst";
851	}	1230	}
852	}	1231	};
853	}	1232	}
854		1233
855	sub object_freezer_as_string {	1234	sub object_freezer_as_string {
856	my ($rdata, $objs) = @_;	1235	my ($rdata, $objs) = @_;
857		1236
…		…
869	or return;	1248	or return;
870		1249
871	unless (aio_stat "$filename.pst") {	1250	unless (aio_stat "$filename.pst") {
872	(aio_load "$filename.pst", $av) >= 0	1251	(aio_load "$filename.pst", $av) >= 0
873	or return;	1252	or return;
		1253
874	$av = eval { (Storable::thaw $av)->{objs} };	1254	my $st = eval { Coro::Storable::thaw $av };
		1255	$av = $st->{objs};
875	}	1256	}
876		1257
		1258	utf8::decode (my $decname = $filename);
877	warn sprintf "loading %s (%d)\n",	1259	warn sprintf "loading %s (%d,%d)\n",
878	$filename, length $data, scalar @{$av || []};#d#	1260	$decname, length $data, scalar @{$av || []};
		1261
879	return ($data, $av);	1262	($data, $av)
880	}	1263	}
		1264
		1265	=head2 COMMAND CALLBACKS
		1266
		1267	=over 4
		1268
		1269	=cut
881		1270
882	#############################################################################	1271	#############################################################################
883	# command handling &c	1272	# command handling &c
884		1273
885	=item cf::register_command $name => \&callback($ob,$args);	1274	=item cf::register_command $name => \&callback($ob,$args);
…		…
898	push @{ $COMMAND{$name} }, [$caller, $cb];	1287	push @{ $COMMAND{$name} }, [$caller, $cb];
899	}	1288	}
900		1289
901	=item cf::register_extcmd $name => \&callback($pl,$packet);	1290	=item cf::register_extcmd $name => \&callback($pl,$packet);
902		1291
903	Register a callbackf ro execution when the client sends an extcmd packet.	1292	Register a callback for execution when the client sends an (synchronous)
		1293	extcmd packet. Ext commands will be processed in the order they are
		1294	received by the server, like other user commands. The first argument is
		1295	the logged-in player. Ext commands can only be processed after a player
		1296	has logged in successfully.
904		1297
905	If the callback returns something, it is sent back as if reply was being	1298	If the callback returns something, it is sent back as if reply was being
906	called.	1299	called.
907		1300
		1301	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1302
		1303	Register a callback for execution when the client sends an (asynchronous)
		1304	exticmd packet. Exti commands are processed by the server as soon as they
		1305	are received, i.e. out of order w.r.t. other commands. The first argument
		1306	is a client socket. Exti commands can be received anytime, even before
		1307	log-in.
		1308
		1309	If the callback returns something, it is sent back as if reply was being
		1310	called.
		1311
908	=cut	1312	=cut
909		1313
910	sub register_extcmd {	1314	sub register_extcmd {
911	my ($name, $cb) = @_;	1315	my ($name, $cb) = @_;
912		1316
913	$EXTCMD{$name} = $cb;	1317	$EXTCMD{$name} = $cb;
914	}	1318	}
915		1319
		1320	sub register_exticmd {
		1321	my ($name, $cb) = @_;
		1322
		1323	$EXTICMD{$name} = $cb;
		1324	}
		1325
		1326	use File::Glob ();
		1327
916	cf::player->attach (	1328	cf::player->attach (
917	on_command => sub {	1329	on_unknown_command => sub {
918	my ($pl, $name, $params) = @_;	1330	my ($pl, $name, $params) = @_;
919		1331
920	my $cb = $COMMAND{$name}	1332	my $cb = $COMMAND{$name}
921	or return;	1333	or return;
922		1334
…		…
927	cf::override;	1339	cf::override;
928	},	1340	},
929	on_extcmd => sub {	1341	on_extcmd => sub {
930	my ($pl, $buf) = @_;	1342	my ($pl, $buf) = @_;
931		1343
932	my $msg = eval { from_json $buf };	1344	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
933		1345
934	if (ref $msg) {	1346	if (ref $msg) {
		1347	my ($type, $reply, @payload) =
		1348	"ARRAY" eq ref $msg
		1349	? @$msg
		1350	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1351
		1352	my @reply;
		1353
935	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1354	if (my $cb = $EXTCMD{$type}) {
936	if (my %reply = $cb->($pl, $msg)) {	1355	@reply = $cb->($pl, @payload);
937	$pl->ext_reply ($msg->{msgid}, %reply);
938	}
939	}	1356	}
		1357
		1358	$pl->ext_reply ($reply, @reply)
		1359	if $reply;
		1360
940	} else {	1361	} else {
941	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1362	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
942	}	1363	}
943		1364
944	cf::override;	1365	cf::override;
945	},	1366	},
946	);	1367	);
947		1368
		1369	# "readahead" all extensions
948	sub load_extension {	1370	sub cache_extensions {
949	my ($path) = @_;	1371	my $grp = IO::AIO::aio_group;
950		1372
951	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1373	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
952	my $base = $1;	1374	for (grep /\.ext$/, @{$_[0]}) {
953	my $pkg = $1;	1375	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
954	$pkg =~ s/[^[:word:]]/_/g;
955	$pkg = "ext::$pkg";
956
957	warn "... loading '$path' into '$pkg'\n";
958
959	open my $fh, "<:utf8", $path
960	or die "$path: $!";
961
962	my $source =
963	"package $pkg; use strict; use utf8;\n"
964	. "#line 1 \"$path\"\n{\n"
965	. (do { local $/; <$fh> })
966	. "\n};\n1";
967
968	unless (eval $source) {
969	my $msg = $@ ? "$path: $@\n"
970	: "extension disabled.\n";
971	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
972	warn $@;
973	warn "mandatory extension failed to load, exiting.\n";
974	exit 1;
975	}	1376	}
976	die $@;
977	}	1377	};
978		1378
979	push @EXTS, $pkg;	1379	$grp
980	}	1380	}
981		1381
982	sub load_extensions {	1382	sub load_extensions {
		1383	cf::sync_job {
		1384	my %todo;
		1385
983	for my $ext (<$LIBDIR/*.ext>) {	1386	for my $path (<$LIBDIR/*.ext>) {
984	next unless -r $ext;	1387	next unless -r $path;
985	eval {	1388
986	load_extension $ext;	1389	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1390	my $base = $1;
		1391	my $pkg = $1;
		1392	$pkg =~ s/[^[:word:]]/_/g;
		1393	$pkg = "ext::$pkg";
		1394
		1395	open my $fh, "<:utf8", $path
		1396	or die "$path: $!";
		1397
		1398	my $source = do { local $/; <$fh> };
		1399
		1400	my %ext = (
		1401	path => $path,
		1402	base => $base,
		1403	pkg => $pkg,
		1404	);
		1405
		1406	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1407	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1408
		1409	$ext{source} =
		1410	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1411	. "#line 1 \"$path\"\n{\n"
		1412	. $source
		1413	. "\n};\n1";
		1414
		1415	$todo{$base} = \%ext;
		1416	}
		1417
		1418	my $pass = 0;
		1419	my %done;
		1420	while (%todo) {
		1421	my $progress;
		1422
		1423	++$pass;
		1424
		1425	ext:
		1426	while (my ($k, $v) = each %todo) {
		1427	for (split /,\s*/, $v->{meta}{depends}) {
		1428	next ext
		1429	unless exists $done{$_};
		1430	}
		1431
		1432	warn "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1433
		1434	my $active = eval $v->{source};
		1435
		1436	if (length $@) {
		1437	warn "$v->{path}: $@\n";
		1438
		1439	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1440	if exists $v->{meta}{mandatory};
		1441	} else {
		1442	$done{$k} = delete $todo{$k};
		1443	push @EXTS, $v->{pkg};
		1444	$progress = 1;
		1445
		1446	warn "$v->{base}: extension inactive.\n"
		1447	unless $active;
		1448	}
987	1	1449	}
988	} or warn "$ext not loaded: $@";	1450
		1451	unless ($progress) {
		1452	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1453
		1454	while (my ($k, $v) = each %todo) {
		1455	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1456	if exists $v->{meta}{mandatory};
		1457	}
		1458	}
		1459	}
989	}	1460	};
990	}	1461	}
991		1462
992	#############################################################################	1463	#############################################################################
993		1464
		1465	=back
		1466
994	=head2 CORE EXTENSIONS	1467	=head2 CORE EXTENSIONS
995		1468
996	Functions and methods that extend core crossfire objects.	1469	Functions and methods that extend core deliantra objects.
997		1470
998	=cut	1471	=cut
999		1472
1000	package cf::player;	1473	package cf::player;
1001		1474
1002	use Coro::AIO;	1475	use Coro::AIO;
1003		1476
1004	=head3 cf::player	1477	=head3 cf::player
1005		1478
1006	=over 4	1479	=over 4
		1480
		1481	=item cf::player::num_playing
		1482
		1483	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1484
		1485	=cut
		1486
		1487	sub num_playing {
		1488	scalar grep
		1489	$_->ob->map
		1490	&& !$_->hidden
		1491	&& !$_->ob->flag (cf::FLAG_WIZ),
		1492	cf::player::list
		1493	}
1007		1494
1008	=item cf::player::find $login	1495	=item cf::player::find $login
1009		1496
1010	Returns the given player object, loading it if necessary (might block).	1497	Returns the given player object, loading it if necessary (might block).
1011		1498
…		…
1030		1517
1031	sub exists($) {	1518	sub exists($) {
1032	my ($login) = @_;	1519	my ($login) = @_;
1033		1520
1034	$cf::PLAYER{$login}	1521	$cf::PLAYER{$login}
1035	or cf::sync_job { !aio_stat path $login }	1522	or !aio_stat path $login
1036	}	1523	}
1037		1524
1038	sub find($) {	1525	sub find($) {
1039	return $cf::PLAYER{$_[0]} || do {	1526	return $cf::PLAYER{$_[0]} || do {
1040	my $login = $_[0];	1527	my $login = $_[0];
…		…
1047	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1534	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1048	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1535	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1049	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1536	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1050	aio_unlink +(playerdir $login) . "/$login.pl";	1537	aio_unlink +(playerdir $login) . "/$login.pl";
1051		1538
1052	my $pl = load_pl path $login	1539	my $f = new_from_file cf::object::thawer path $login
1053	or return;	1540	or return;
		1541
		1542	my $pl = cf::player::load_pl $f
		1543	or return;
		1544
		1545	local $cf::PLAYER_LOADING{$login} = $pl;
		1546	$f->resolve_delayed_derefs;
1054	$cf::PLAYER{$login} = $pl	1547	$cf::PLAYER{$login} = $pl
1055	}	1548	}
1056	}	1549	}
1057	}	1550	}
		1551
		1552	cf::player->attach (
		1553	on_load => sub {
		1554	my ($pl, $path) = @_;
		1555
		1556	# restore slots saved in save, below
		1557	my $slots = delete $pl->{_slots};
		1558
		1559	$pl->ob->current_weapon ($slots->[0]);
		1560	$pl->combat_ob ($slots->[1]);
		1561	$pl->ranged_ob ($slots->[2]);
		1562	},
		1563	);
1058		1564
1059	sub save($) {	1565	sub save($) {
1060	my ($pl) = @_;	1566	my ($pl) = @_;
1061		1567
1062	return if $pl->{deny_save};	1568	return if $pl->{deny_save};
…		…
1067	return if $pl->{deny_save};	1573	return if $pl->{deny_save};
1068		1574
1069	aio_mkdir playerdir $pl, 0770;	1575	aio_mkdir playerdir $pl, 0770;
1070	$pl->{last_save} = $cf::RUNTIME;	1576	$pl->{last_save} = $cf::RUNTIME;
1071		1577
		1578	cf::get_slot 0.01;
		1579
		1580	# save slots, to be restored later
		1581	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1582
1072	$pl->save_pl ($path);	1583	$pl->save_pl ($path);
1073	Coro::cede;	1584	cf::cede_to_tick;
1074	}	1585	}
1075		1586
1076	sub new($) {	1587	sub new($) {
1077	my ($login) = @_;	1588	my ($login) = @_;
1078		1589
…		…
1084	$cf::PLAYER{$login} = $self;	1595	$cf::PLAYER{$login} = $self;
1085		1596
1086	$self	1597	$self
1087	}	1598	}
1088		1599
		1600	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1601
		1602	=cut
		1603
		1604	sub send_msg {
		1605	my $ns = shift->ns
		1606	or return;
		1607	$ns->send_msg (@_);
		1608	}
		1609
1089	=item $pl->quit_character	1610	=item $pl->quit_character
1090		1611
1091	Nukes the player without looking back. If logged in, the connection will	1612	Nukes the player without looking back. If logged in, the connection will
1092	be destroyed. May block for a long time.	1613	be destroyed. May block for a long time.
1093		1614
…		…
1097	my ($pl) = @_;	1618	my ($pl) = @_;
1098		1619
1099	my $name = $pl->ob->name;	1620	my $name = $pl->ob->name;
1100		1621
1101	$pl->{deny_save} = 1;	1622	$pl->{deny_save} = 1;
1102	$pl->password ("*"); # this should lock out the player until we nuked the dir	1623	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1103		1624
1104	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1625	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1105	$pl->deactivate;	1626	$pl->deactivate;
		1627	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1628	$pl->ob->check_score;
1106	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1629	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1107	$pl->ns->destroy if $pl->ns;	1630	$pl->ns->destroy if $pl->ns;
1108		1631
1109	my $path = playerdir $pl;	1632	my $path = playerdir $pl;
1110	my $temp = "$path~$cf::RUNTIME~deleting~";	1633	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1146	or return [];	1669	or return [];
1147		1670
1148	my @logins;	1671	my @logins;
1149		1672
1150	for my $login (@$dirs) {	1673	for my $login (@$dirs) {
		1674	my $path = path $login;
		1675
		1676	# a .pst is a dead give-away for a valid player
		1677	# if no pst file found, open and chekc for blocked users
		1678	if (aio_stat "$path.pst") {
1151	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1679	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1152	aio_read $fh, 0, 512, my $buf, 0 or next;	1680	aio_read $fh, 0, 512, my $buf, 0 or next;
1153	$buf !~ /^password -------------$/m or next; # official not-valid tag	1681	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1682	}
1154		1683
1155	utf8::decode $login;	1684	utf8::decode $login;
1156	push @logins, $login;	1685	push @logins, $login;
1157	}	1686	}
1158		1687
…		…
1185	}	1714	}
1186		1715
1187	\@paths	1716	\@paths
1188	}	1717	}
1189		1718
		1719	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1720
		1721	Expand deliantra pod fragments into protocol xml.
		1722
1190	=item $player->ext_reply ($msgid, %msg)	1723	=item $player->ext_reply ($msgid, @msg)
1191		1724
1192	Sends an ext reply to the player.	1725	Sends an ext reply to the player.
1193		1726
1194	=cut	1727	=cut
1195		1728
1196	sub ext_reply($$%) {	1729	sub ext_reply($$@) {
1197	my ($self, $id, %msg) = @_;	1730	my ($self, $id, @msg) = @_;
1198		1731
1199	$msg{msgid} = $id;	1732	$self->ns->ext_reply ($id, @msg)
1200
1201	$self->send ("ext " . cf::to_json \%msg);
1202	}	1733	}
1203		1734
1204	=item $player->ext_event ($type, %msg)	1735	=item $player->ext_msg ($type, @msg)
1205		1736
1206	Sends an ext event to the client.	1737	Sends an ext event to the client.
1207		1738
1208	=cut	1739	=cut
1209		1740
1210	sub ext_event($$%) {	1741	sub ext_msg($$@) {
1211	my ($self, $type, %msg) = @_;	1742	my ($self, $type, @msg) = @_;
1212		1743
1213	$self->ns->ext_event ($type, %msg);	1744	$self->ns->ext_msg ($type, @msg);
1214	}	1745	}
1215		1746
1216	=head3 cf::region	1747	=head3 cf::region
1217		1748
1218	=over 4	1749	=over 4
…		…
1221		1752
1222	package cf::region;	1753	package cf::region;
1223		1754
1224	=item cf::region::find_by_path $path	1755	=item cf::region::find_by_path $path
1225		1756
1226	Tries to decuce the probable region for a map knowing only its path.	1757	Tries to decuce the likely region for a map knowing only its path.
1227		1758
1228	=cut	1759	=cut
1229		1760
1230	sub find_by_path($) {	1761	sub find_by_path($) {
1231	my ($path) = @_;	1762	my ($path) = @_;
1232		1763
1233	my ($match, $specificity);	1764	my ($match, $specificity);
1234		1765
1235	for my $region (list) {	1766	for my $region (list) {
1236	if ($region->match && $path =~ $region->match) {	1767	if ($region->{match} && $path =~ $region->{match}) {
1237	($match, $specificity) = ($region, $region->specificity)	1768	($match, $specificity) = ($region, $region->specificity)
1238	if $region->specificity > $specificity;	1769	if $region->specificity > $specificity;
1239	}	1770	}
1240	}	1771	}
1241		1772
…		…
1262	our $MAX_RESET = 3600;	1793	our $MAX_RESET = 3600;
1263	our $DEFAULT_RESET = 3000;	1794	our $DEFAULT_RESET = 3000;
1264		1795
1265	sub generate_random_map {	1796	sub generate_random_map {
1266	my ($self, $rmp) = @_;	1797	my ($self, $rmp) = @_;
		1798
		1799	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1800
1267	# mit "rum" bekleckern, nicht	1801	# mit "rum" bekleckern, nicht
1268	$self->_create_random_map (	1802	$self->_create_random_map (
1269	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1803	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1270	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1804	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1271	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1805	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1272	$rmp->{exit_on_final_map},	1806	$rmp->{exit_on_final_map},
1273	$rmp->{xsize}, $rmp->{ysize},	1807	$rmp->{xsize}, $rmp->{ysize},
1274	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1808	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1275	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1809	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1305	my ($self, $merge) = @_;	1839	my ($self, $merge) = @_;
1306		1840
1307	# we have to keep some variables in memory intact	1841	# we have to keep some variables in memory intact
1308	local $self->{path};	1842	local $self->{path};
1309	local $self->{load_path};	1843	local $self->{load_path};
1310	local $self->{deny_save};
1311	local $self->{deny_reset};
1312		1844
1313	$self->SUPER::thawer_merge ($merge);	1845	$self->SUPER::thawer_merge ($merge);
1314	}	1846	}
1315		1847
1316	sub normalise {	1848	sub normalise {
…		…
1363	$self->init; # pass $1 etc.	1895	$self->init; # pass $1 etc.
1364	return $self;	1896	return $self;
1365	}	1897	}
1366	}	1898	}
1367		1899
1368	Carp::carp "unable to resolve path '$path' (base '$base').";	1900	Carp::cluck "unable to resolve path '$path' (base '$base').";
1369	()	1901	()
1370	}	1902	}
1371		1903
1372	sub init {	1904	sub init {
1373	my ($self) = @_;	1905	my ($self) = @_;
…		…
1395		1927
1396	# the temporary/swap location	1928	# the temporary/swap location
1397	sub save_path {	1929	sub save_path {
1398	my ($self) = @_;	1930	my ($self) = @_;
1399		1931
1400	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1932	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1401	"$TMPDIR/$path.map"	1933	"$TMPDIR/$path.map"
1402	}	1934	}
1403		1935
1404	# the unique path, undef == no special unique path	1936	# the unique path, undef == no special unique path
1405	sub uniq_path {	1937	sub uniq_path {
1406	my ($self) = @_;	1938	my ($self) = @_;
1407		1939
1408	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1940	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1409	"$UNIQUEDIR/$path"	1941	"$UNIQUEDIR/$path"
1410	}	1942	}
1411		1943
1412	# and all this just because we cannot iterate over	1944	sub decay_objects {
1413	# all maps in C++...
1414	sub change_all_map_light {
1415	my ($change) = @_;	1945	my ($self) = @_;
1416		1946
1417	$_->change_map_light ($change)	1947	return if $self->{deny_reset};
1418	for grep $_->outdoor, values %cf::MAP;	1948
		1949	$self->do_decay_objects;
1419	}	1950	}
1420		1951
1421	sub unlink_save {	1952	sub unlink_save {
1422	my ($self) = @_;	1953	my ($self) = @_;
1423		1954
…		…
1428		1959
1429	sub load_header_from($) {	1960	sub load_header_from($) {
1430	my ($self, $path) = @_;	1961	my ($self, $path) = @_;
1431		1962
1432	utf8::encode $path;	1963	utf8::encode $path;
1433	#aio_open $path, O_RDONLY, 0	1964	my $f = new_from_file cf::object::thawer $path
1434	# or return;
1435
1436	$self->_load_header ($path)
1437	or return;	1965	or return;
		1966
		1967	$self->_load_header ($f)
		1968	or return;
		1969
		1970	local $MAP_LOADING{$self->{path}} = $self;
		1971	$f->resolve_delayed_derefs;
1438		1972
1439	$self->{load_path} = $path;	1973	$self->{load_path} = $path;
1440		1974
1441	1	1975	1
1442	}	1976	}
…		…
1481	$self->load_header_orig	2015	$self->load_header_orig
1482	or return;	2016	or return;
1483	$self->prepare_orig;	2017	$self->prepare_orig;
1484	}	2018	}
1485		2019
		2020	$self->{deny_reset} = 1
		2021	if $self->no_reset;
		2022
1486	$self->default_region (cf::region::find_by_path $self->{path})	2023	$self->default_region (cf::region::find_by_path $self->{path})
1487	unless $self->default_region;	2024	unless $self->default_region;
1488		2025
1489	1	2026	1
1490	}	2027	}
…		…
1493	sub find {	2030	sub find {
1494	my ($path, $origin) = @_;	2031	my ($path, $origin) = @_;
1495		2032
1496	$path = normalise $path, $origin && $origin->path;	2033	$path = normalise $path, $origin && $origin->path;
1497		2034
		2035	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1498	cf::lock_wait "map_find:$path";	2036	my $guard2 = cf::lock_acquire "map_find:$path";
1499		2037
1500	$cf::MAP{$path} || do {	2038	$cf::MAP{$path} || do {
1501	my $guard = cf::lock_acquire "map_find:$path";
1502	my $map = new_from_path cf::map $path	2039	my $map = new_from_path cf::map $path
1503	or return;	2040	or return;
1504		2041
1505	$map->{last_save} = $cf::RUNTIME;	2042	$map->{last_save} = $cf::RUNTIME;
1506		2043
1507	$map->load_header	2044	$map->load_header
1508	or return;	2045	or return;
1509		2046
1510	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2047	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1511	# doing this can freeze the server in a sync job, obviously	2048	# doing this can freeze the server in a sync job, obviously
1512	#$cf::WAIT_FOR_TICK->wait;	2049	#$cf::WAIT_FOR_TICK->wait;
		2050	undef $guard2;
		2051	undef $guard1;
1513	$map->reset;	2052	$map->reset;
1514	undef $guard;
1515	return find $path;	2053	return find $path;
1516	}	2054	}
1517		2055
1518	$cf::MAP{$path} = $map	2056	$cf::MAP{$path} = $map
1519	}	2057	}
1520	}	2058	}
1521		2059
1522	sub pre_load { }	2060	sub pre_load { }
1523	sub post_load { }	2061	#sub post_load { } # XS
1524		2062
1525	sub load {	2063	sub load {
1526	my ($self) = @_;	2064	my ($self) = @_;
1527		2065
1528	local $self->{deny_reset} = 1; # loading can take a long time	2066	local $self->{deny_reset} = 1; # loading can take a long time
1529		2067
1530	my $path = $self->{path};	2068	my $path = $self->{path};
1531		2069
1532	{	2070	{
1533	my $guard = cf::lock_acquire "map_load:$path";	2071	my $guard = cf::lock_acquire "map_data:$path";
1534		2072
		2073	return unless $self->valid;
1535	return if $self->in_memory != cf::MAP_SWAPPED;	2074	return unless $self->in_memory == cf::MAP_SWAPPED;
1536		2075
1537	$self->in_memory (cf::MAP_LOADING);	2076	$self->in_memory (cf::MAP_LOADING);
1538		2077
1539	$self->alloc;	2078	$self->alloc;
1540		2079
1541	$self->pre_load;	2080	$self->pre_load;
1542	Coro::cede;	2081	cf::cede_to_tick;
1543		2082
		2083	my $f = new_from_file cf::object::thawer $self->{load_path};
		2084	$f->skip_block;
1544	$self->_load_objects ($self->{load_path}, 1)	2085	$self->_load_objects ($f)
1545	or return;	2086	or return;
1546		2087
1547	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2088	$self->post_load_original
1548	if delete $self->{load_original};	2089	if delete $self->{load_original};
1549		2090
1550	if (my $uniq = $self->uniq_path) {	2091	if (my $uniq = $self->uniq_path) {
1551	utf8::encode $uniq;	2092	utf8::encode $uniq;
1552	if (aio_open $uniq, O_RDONLY, 0) {	2093	unless (aio_stat $uniq) {
		2094	if (my $f = new_from_file cf::object::thawer $uniq) {
1553	$self->clear_unique_items;	2095	$self->clear_unique_items;
1554	$self->_load_objects ($uniq, 0);	2096	$self->_load_objects ($f);
		2097	$f->resolve_delayed_derefs;
		2098	}
1555	}	2099	}
1556	}	2100	}
1557		2101
1558	Coro::cede;	2102	$f->resolve_delayed_derefs;
		2103
		2104	cf::cede_to_tick;
1559	# now do the right thing for maps	2105	# now do the right thing for maps
1560	$self->link_multipart_objects;	2106	$self->link_multipart_objects;
1561	$self->difficulty ($self->estimate_difficulty)	2107	$self->difficulty ($self->estimate_difficulty)
1562	unless $self->difficulty;	2108	unless $self->difficulty;
1563	Coro::cede;	2109	cf::cede_to_tick;
1564		2110
1565	unless ($self->{deny_activate}) {	2111	unless ($self->{deny_activate}) {
1566	$self->decay_objects;	2112	$self->decay_objects;
1567	$self->fix_auto_apply;	2113	$self->fix_auto_apply;
1568	$self->update_buttons;	2114	$self->update_buttons;
1569	Coro::cede;	2115	cf::cede_to_tick;
1570	$self->set_darkness_map;
1571	Coro::cede;
1572	$self->activate;	2116	$self->activate;
1573	}	2117	}
1574		2118
		2119	$self->{last_save} = $cf::RUNTIME;
		2120	$self->last_access ($cf::RUNTIME);
		2121
1575	$self->in_memory (cf::MAP_IN_MEMORY);	2122	$self->in_memory (cf::MAP_ACTIVE);
1576	}	2123	}
1577		2124
1578	$self->post_load;	2125	$self->post_load;
1579	}	2126	}
1580		2127
		2128	# customize the map for a given player, i.e.
		2129	# return the _real_ map. used by e.g. per-player
		2130	# maps to change the path to ~playername/mappath
1581	sub customise_for {	2131	sub customise_for {
1582	my ($self, $ob) = @_;	2132	my ($self, $ob) = @_;
1583		2133
1584	return find "~" . $ob->name . "/" . $self->{path}	2134	return find "~" . $ob->name . "/" . $self->{path}
1585	if $self->per_player;	2135	if $self->per_player;
1586		2136
		2137	# return find "?party/" . $ob->name . "/" . $self->{path}
		2138	# if $self->per_party;
		2139
1587	$self	2140	$self
1588	}	2141	}
1589		2142
1590	# find and load all maps in the 3x3 area around a map	2143	# find and load all maps in the 3x3 area around a map
1591	sub load_diag {	2144	sub load_neighbours {
1592	my ($map) = @_;	2145	my ($map) = @_;
1593		2146
1594	my @diag; # diagonal neighbours	2147	my @neigh; # diagonal neighbours
1595		2148
1596	for (0 .. 3) {	2149	for (0 .. 3) {
1597	my $neigh = $map->tile_path ($_)	2150	my $neigh = $map->tile_path ($_)
1598	or next;	2151	or next;
1599	$neigh = find $neigh, $map	2152	$neigh = find $neigh, $map
1600	or next;	2153	or next;
1601	$neigh->load;	2154	$neigh->load;
1602		2155
		2156	push @neigh,
1603	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2157	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1604	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2158	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1605	}	2159	}
1606		2160
1607	for (@diag) {	2161	for (grep defined $_->[0], @neigh) {
		2162	my ($path, $origin) = @$_;
1608	my $neigh = find @$_	2163	my $neigh = find $path, $origin
1609	or next;	2164	or next;
1610	$neigh->load;	2165	$neigh->load;
1611	}	2166	}
1612	}	2167	}
1613		2168
…		…
1618	}	2173	}
1619		2174
1620	sub do_load_sync {	2175	sub do_load_sync {
1621	my ($map) = @_;	2176	my ($map) = @_;
1622		2177
		2178	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2179	if $Coro::current == $Coro::main;
		2180
1623	cf::sync_job { $map->load };	2181	cf::sync_job { $map->load };
1624	}	2182	}
1625		2183
1626	our %MAP_PREFETCH;	2184	our %MAP_PREFETCH;
1627	our $MAP_PREFETCHER = undef;	2185	our $MAP_PREFETCHER = undef;
1628		2186
1629	sub find_async {	2187	sub find_async {
1630	my ($path, $origin) = @_;	2188	my ($path, $origin, $load) = @_;
1631		2189
1632	$path = normalise $path, $origin && $origin->{path};	2190	$path = normalise $path, $origin && $origin->{path};
1633		2191
1634	if (my $map = $cf::MAP{$path}) {	2192	if (my $map = $cf::MAP{$path}) {
1635	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2193	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1636	}	2194	}
1637		2195
1638	undef $MAP_PREFETCH{$path};	2196	$MAP_PREFETCH{$path} |= $load;
		2197
1639	$MAP_PREFETCHER ||= cf::async {	2198	$MAP_PREFETCHER ||= cf::async {
		2199	$Coro::current->{desc} = "map prefetcher";
		2200
1640	while (%MAP_PREFETCH) {	2201	while (%MAP_PREFETCH) {
1641	for my $path (keys %MAP_PREFETCH) {	2202	while (my ($k, $v) = each %MAP_PREFETCH) {
1642	my $map = find $path	2203	if (my $map = find $k) {
1643	or next;
1644	$map->load;	2204	$map->load if $v;
		2205	}
1645		2206
1646	delete $MAP_PREFETCH{$path};	2207	delete $MAP_PREFETCH{$k};
1647	}	2208	}
1648	}	2209	}
1649	undef $MAP_PREFETCHER;	2210	undef $MAP_PREFETCHER;
1650	};	2211	};
1651	$MAP_PREFETCHER->prio (6);	2212	$MAP_PREFETCHER->prio (6);
1652		2213
1653	()	2214	()
1654	}	2215	}
1655		2216
		2217	# common code, used by both ->save and ->swapout
1656	sub save {	2218	sub _save {
1657	my ($self) = @_;	2219	my ($self) = @_;
1658
1659	my $lock = cf::lock_acquire "map_data:" . $self->path;
1660		2220
1661	$self->{last_save} = $cf::RUNTIME;	2221	$self->{last_save} = $cf::RUNTIME;
1662		2222
1663	return unless $self->dirty;	2223	return unless $self->dirty;
1664		2224
…		…
1670	return if $self->{deny_save};	2230	return if $self->{deny_save};
1671		2231
1672	local $self->{last_access} = $self->last_access;#d#	2232	local $self->{last_access} = $self->last_access;#d#
1673		2233
1674	cf::async {	2234	cf::async {
		2235	$Coro::current->{desc} = "map player save";
1675	$_->contr->save for $self->players;	2236	$_->contr->save for $self->players;
1676	};	2237	};
		2238
		2239	cf::get_slot 0.02;
1677		2240
1678	if ($uniq) {	2241	if ($uniq) {
1679	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2242	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1680	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2243	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1681	} else {	2244	} else {
1682	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2245	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1683	}	2246	}
1684	}	2247	}
1685		2248
		2249	sub save {
		2250	my ($self) = @_;
		2251
		2252	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2253
		2254	$self->_save;
		2255	}
		2256
1686	sub swap_out {	2257	sub swap_out {
1687	my ($self) = @_;	2258	my ($self) = @_;
1688		2259
1689	# save first because save cedes
1690	$self->save;
1691
1692	my $lock = cf::lock_acquire "map_data:" . $self->path;	2260	my $lock = cf::lock_acquire "map_data:$self->{path}";
1693		2261
		2262	return if $self->in_memory != cf::MAP_ACTIVE;
		2263	return if $self->{deny_save};
1694	return if $self->players;	2264	return if $self->players;
1695	return if $self->in_memory != cf::MAP_IN_MEMORY;
1696	return if $self->{deny_save};
1697		2265
		2266	# first deactivate the map and "unlink" it from the core
		2267	$self->deactivate;
		2268	$_->clear_links_to ($self) for values %cf::MAP;
		2269	$self->in_memory (cf::MAP_SWAPPED);
		2270
		2271	# then atomically save
		2272	$self->_save;
		2273
		2274	# then free the map
1698	$self->clear;	2275	$self->clear;
1699	$self->in_memory (cf::MAP_SWAPPED);
1700	}	2276	}
1701		2277
1702	sub reset_at {	2278	sub reset_at {
1703	my ($self) = @_;	2279	my ($self) = @_;
1704		2280
1705	# TODO: safety, remove and allow resettable per-player maps	2281	# TODO: safety, remove and allow resettable per-player maps
1706	return 1e99 if $self->isa ("ext::map_per_player");#d#
1707	return 1e99 if $self->{deny_reset};	2282	return 1e99 if $self->{deny_reset};
1708		2283
1709	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2284	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1710	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2285	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1711		2286
…		…
1722	my ($self) = @_;	2297	my ($self) = @_;
1723		2298
1724	my $lock = cf::lock_acquire "map_data:$self->{path}";	2299	my $lock = cf::lock_acquire "map_data:$self->{path}";
1725		2300
1726	return if $self->players;	2301	return if $self->players;
1727	return if $self->isa ("ext::map_per_player");#d#
1728		2302
1729	warn "resetting map ", $self->path;#d#	2303	warn "resetting map ", $self->path, "\n";
1730		2304
1731	$self->in_memory (cf::MAP_SWAPPED);	2305	$self->in_memory (cf::MAP_SWAPPED);
1732		2306
1733	# need to save uniques path	2307	# need to save uniques path
1734	unless ($self->{deny_save}) {	2308	unless ($self->{deny_save}) {
…		…
1738	if $uniq;	2312	if $uniq;
1739	}	2313	}
1740		2314
1741	delete $cf::MAP{$self->path};	2315	delete $cf::MAP{$self->path};
1742		2316
		2317	$self->deactivate;
		2318	$_->clear_links_to ($self) for values %cf::MAP;
1743	$self->clear;	2319	$self->clear;
1744
1745	$_->clear_links_to ($self) for values %cf::MAP;
1746		2320
1747	$self->unlink_save;	2321	$self->unlink_save;
1748	$self->destroy;	2322	$self->destroy;
1749	}	2323	}
1750		2324
1751	my $nuke_counter = "aaaa";	2325	my $nuke_counter = "aaaa";
1752		2326
1753	sub nuke {	2327	sub nuke {
1754	my ($self) = @_;	2328	my ($self) = @_;
1755		2329
		2330	{
		2331	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2332
1756	delete $cf::MAP{$self->path};	2333	delete $cf::MAP{$self->path};
1757		2334
1758	$self->unlink_save;	2335	$self->unlink_save;
1759		2336
1760	bless $self, "cf::map";	2337	bless $self, "cf::map";
1761	delete $self->{deny_reset};	2338	delete $self->{deny_reset};
1762	$self->{deny_save} = 1;	2339	$self->{deny_save} = 1;
1763	$self->reset_timeout (1);	2340	$self->reset_timeout (1);
1764	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2341	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1765		2342
1766	$cf::MAP{$self->path} = $self;	2343	$cf::MAP{$self->path} = $self;
		2344	}
1767		2345
1768	$self->reset; # polite request, might not happen	2346	$self->reset; # polite request, might not happen
		2347	}
		2348
		2349	=item $maps = cf::map::tmp_maps
		2350
		2351	Returns an arrayref with all map paths of currently instantiated and saved
		2352	maps. May block.
		2353
		2354	=cut
		2355
		2356	sub tmp_maps() {
		2357	[
		2358	map {
		2359	utf8::decode $_;
		2360	/\.map$/
		2361	? normalise $_
		2362	: ()
		2363	} @{ aio_readdir $TMPDIR or [] }
		2364	]
		2365	}
		2366
		2367	=item $maps = cf::map::random_maps
		2368
		2369	Returns an arrayref with all map paths of currently instantiated and saved
		2370	random maps. May block.
		2371
		2372	=cut
		2373
		2374	sub random_maps() {
		2375	[
		2376	map {
		2377	utf8::decode $_;
		2378	/\.map$/
		2379	? normalise "?random/$_"
		2380	: ()
		2381	} @{ aio_readdir $RANDOMDIR or [] }
		2382	]
1769	}	2383	}
1770		2384
1771	=item cf::map::unique_maps	2385	=item cf::map::unique_maps
1772		2386
1773	Returns an arrayref of paths of all shared maps that have	2387	Returns an arrayref of paths of all shared maps that have
1774	instantiated unique items. May block.	2388	instantiated unique items. May block.
1775		2389
1776	=cut	2390	=cut
1777		2391
1778	sub unique_maps() {	2392	sub unique_maps() {
1779	my $files = aio_readdir $UNIQUEDIR	2393	[
1780	or return;	2394	map {
1781
1782	my @paths;
1783
1784	for (@$files) {
1785	utf8::decode $_;	2395	utf8::decode $_;
1786	next if /\.pst$/;	2396	s/\.map$//; # TODO future compatibility hack
1787	next unless /^$PATH_SEP/o;	2397	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1788		2398	? ()
1789	push @paths, cf::map::normalise $_;	2399	: normalise $_
		2400	} @{ aio_readdir $UNIQUEDIR or [] }
1790	}	2401	]
1791
1792	\@paths
1793	}	2402	}
1794		2403
1795	package cf;	2404	=item cf::map::static_maps
		2405
		2406	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2407	file in the shared directory excluding F</styles> and F</editor>). May
		2408	block.
		2409
		2410	=cut
		2411
		2412	sub static_maps() {
		2413	my @dirs = "";
		2414	my @maps;
		2415
		2416	while (@dirs) {
		2417	my $dir = shift @dirs;
		2418
		2419	next if $dir eq "/styles" || $dir eq "/editor";
		2420
		2421	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2422	or return;
		2423
		2424	for (@$files) {
		2425	s/\.map$// or next;
		2426	utf8::decode $_;
		2427	push @maps, "$dir/$_";
		2428	}
		2429
		2430	push @dirs, map "$dir/$_", @$dirs;
		2431	}
		2432
		2433	\@maps
		2434	}
1796		2435
1797	=back	2436	=back
1798		2437
1799	=head3 cf::object	2438	=head3 cf::object
1800		2439
…		…
1804		2443
1805	=over 4	2444	=over 4
1806		2445
1807	=item $ob->inv_recursive	2446	=item $ob->inv_recursive
1808		2447
1809	Returns the inventory of the object _and_ their inventories, recursively.	2448	Returns the inventory of the object I<and> their inventories, recursively,
		2449	but I<not> the object itself.
1810		2450
1811	=cut	2451	=cut
1812		2452
1813	sub inv_recursive_;	2453	sub inv_recursive_;
1814	sub inv_recursive_ {	2454	sub inv_recursive_ {
…		…
1817		2457
1818	sub inv_recursive {	2458	sub inv_recursive {
1819	inv_recursive_ inv $_[0]	2459	inv_recursive_ inv $_[0]
1820	}	2460	}
1821		2461
		2462	=item $ref = $ob->ref
		2463
		2464	Creates and returns a persistent reference to an object that can be stored as a string.
		2465
		2466	=item $ob = cf::object::deref ($refstring)
		2467
		2468	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2469	even if the object actually exists. May block.
		2470
		2471	=cut
		2472
		2473	sub deref {
		2474	my ($ref) = @_;
		2475
		2476	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2477	my ($uuid, $name) = ($1, $2);
		2478	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2479	or return;
		2480	$pl->ob->uuid eq $uuid
		2481	or return;
		2482
		2483	$pl->ob
		2484	} else {
		2485	warn "$ref: cannot resolve object reference\n";
		2486	undef
		2487	}
		2488	}
		2489
1822	package cf;	2490	package cf;
1823		2491
1824	=back	2492	=back
1825		2493
1826	=head3 cf::object::player	2494	=head3 cf::object::player
…		…
1832	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2500	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1833	can be C<undef>. Does the right thing when the player is currently in a	2501	can be C<undef>. Does the right thing when the player is currently in a
1834	dialogue with the given NPC character.	2502	dialogue with the given NPC character.
1835		2503
1836	=cut	2504	=cut
		2505
		2506	our $SAY_CHANNEL = {
		2507	id => "say",
		2508	title => "Map",
		2509	reply => "say ",
		2510	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2511	};
		2512
		2513	our $CHAT_CHANNEL = {
		2514	id => "chat",
		2515	title => "Chat",
		2516	reply => "chat ",
		2517	tooltip => "Player chat and shouts, global to the server.",
		2518	};
1837		2519
1838	# rough implementation of a future "reply" method that works	2520	# rough implementation of a future "reply" method that works
1839	# with dialog boxes.	2521	# with dialog boxes.
1840	#TODO: the first argument must go, split into a $npc->reply_to ( method	2522	#TODO: the first argument must go, split into a $npc->reply_to ( method
1841	sub cf::object::player::reply($$$;$) {	2523	sub cf::object::player::reply($$$;$) {
…		…
1843		2525
1844	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2526	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1845		2527
1846	if ($self->{record_replies}) {	2528	if ($self->{record_replies}) {
1847	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2529	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2530
1848	} else {	2531	} else {
		2532	my $pl = $self->contr;
		2533
		2534	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2535	my $dialog = $pl->{npc_dialog};
		2536	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2537
		2538	} else {
1849	$msg = $npc->name . " says: $msg" if $npc;	2539	$msg = $npc->name . " says: $msg" if $npc;
1850	$self->message ($msg, $flags);	2540	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2541	}
1851	}	2542	}
		2543	}
		2544
		2545	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2546
		2547	=cut
		2548
		2549	sub cf::object::send_msg {
		2550	my $pl = shift->contr
		2551	or return;
		2552	$pl->send_msg (@_);
1852	}	2553	}
1853		2554
1854	=item $player_object->may ("access")	2555	=item $player_object->may ("access")
1855		2556
1856	Returns wether the given player is authorized to access resource "access"	2557	Returns wether the given player is authorized to access resource "access"
…		…
1869		2570
1870	=item $player_object->enter_link	2571	=item $player_object->enter_link
1871		2572
1872	Freezes the player and moves him/her to a special map (C<{link}>).	2573	Freezes the player and moves him/her to a special map (C<{link}>).
1873		2574
1874	The player should be reasonably safe there for short amounts of time. You	2575	The player should be reasonably safe there for short amounts of time (e.g.
1875	I<MUST> call C<leave_link> as soon as possible, though.	2576	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2577	though, as the palyer cannot control the character while it is on the link
		2578	map.
1876		2579
1877	Will never block.	2580	Will never block.
1878		2581
1879	=item $player_object->leave_link ($map, $x, $y)	2582	=item $player_object->leave_link ($map, $x, $y)
1880		2583
…		…
1905	return if UNIVERSAL::isa $self->map, "ext::map_link";	2608	return if UNIVERSAL::isa $self->map, "ext::map_link";
1906		2609
1907	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2610	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1908	if $self->map && $self->map->{path} ne "{link}";	2611	if $self->map && $self->map->{path} ne "{link}";
1909		2612
1910	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2613	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1911	}	2614	}
1912		2615
1913	sub cf::object::player::leave_link {	2616	sub cf::object::player::leave_link {
1914	my ($self, $map, $x, $y) = @_;	2617	my ($self, $map, $x, $y) = @_;
1915		2618
…		…
1932	($x, $y) = (-1, -1)	2635	($x, $y) = (-1, -1)
1933	unless (defined $x) && (defined $y);	2636	unless (defined $x) && (defined $y);
1934		2637
1935	# use -1 or undef as default coordinates, not 0, 0	2638	# use -1 or undef as default coordinates, not 0, 0
1936	($x, $y) = ($map->enter_x, $map->enter_y)	2639	($x, $y) = ($map->enter_x, $map->enter_y)
1937	if $x <=0 && $y <= 0;	2640	if $x <= 0 && $y <= 0;
1938		2641
1939	$map->load;	2642	$map->load;
1940	$map->load_diag;	2643	$map->load_neighbours;
1941		2644
1942	return unless $self->contr->active;	2645	return unless $self->contr->active;
1943	$self->activate_recursive;
1944		2646
1945	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2647	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1946	$self->enter_map ($map, $x, $y);	2648	$self->enter_map ($map, $x, $y);
1947	}
1948		2649
		2650	# only activate afterwards, to support waiting in hooks
		2651	$self->activate_recursive;
		2652	}
		2653
1949	=item $player_object->goto ($path, $x, $y[, $check->($map)])	2654	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1950		2655
1951	Moves the player to the given map-path and coordinates by first freezing	2656	Moves the player to the given map-path and coordinates by first freezing
1952	her, loading and preparing them map, calling the provided $check callback	2657	her, loading and preparing them map, calling the provided $check callback
1953	that has to return the map if sucecssful, and then unfreezes the player on	2658	that has to return the map if sucecssful, and then unfreezes the player on
1954	the new (success) or old (failed) map position.	2659	the new (success) or old (failed) map position. In either case, $done will
		2660	be called at the end of this process.
		2661
		2662	Note that $check will be called with a potentially non-loaded map, so if
		2663	it needs a loaded map it has to call C<< ->load >>.
1955		2664
1956	=cut	2665	=cut
1957		2666
1958	our $GOTOGEN;	2667	our $GOTOGEN;
1959		2668
1960	sub cf::object::player::goto {	2669	sub cf::object::player::goto {
1961	my ($self, $path, $x, $y, $check) = @_;	2670	my ($self, $path, $x, $y, $check, $done) = @_;
1962		2671
1963	# do generation counting so two concurrent goto's will be executed in-order	2672	# do generation counting so two concurrent goto's will be executed in-order
1964	my $gen = $self->{_goto_generation} = ++$GOTOGEN;	2673	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1965		2674
1966	$self->enter_link;	2675	$self->enter_link;
1967		2676
1968	(async {	2677	(async {
		2678	$Coro::current->{desc} = "player::goto $path $x $y";
		2679
		2680	# *tag paths override both path and x|y
		2681	if ($path =~ /^\*(.*)$/) {
		2682	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2683	my $ob = $obs[rand @obs];
		2684
		2685	# see if we actually can go there
		2686	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2687	$ob = $obs[rand @obs];
		2688	} else {
		2689	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2690	}
		2691	# else put us there anyways for now #d#
		2692
		2693	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2694	} else {
		2695	($path, $x, $y) = (undef, undef, undef);
		2696	}
		2697	}
		2698
1969	my $map = eval {	2699	my $map = eval {
1970	my $map = cf::map::find $path;	2700	my $map = defined $path ? cf::map::find $path : undef;
1971		2701
1972	if ($map) {	2702	if ($map) {
1973	$map = $map->customise_for ($self);	2703	$map = $map->customise_for ($self);
1974	$map = $check->($map) if $check && $map;	2704	$map = $check->($map) if $check && $map;
1975	} else {	2705	} else {
1976	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2706	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
1977	}	2707	}
1978		2708
1979	$map	2709	$map
1980	};	2710	};
1981		2711
…		…
1986		2716
1987	if ($gen == $self->{_goto_generation}) {	2717	if ($gen == $self->{_goto_generation}) {
1988	delete $self->{_goto_generation};	2718	delete $self->{_goto_generation};
1989	$self->leave_link ($map, $x, $y);	2719	$self->leave_link ($map, $x, $y);
1990	}	2720	}
		2721
		2722	$done->() if $done;
1991	})->prio (1);	2723	})->prio (1);
1992	}	2724	}
1993		2725
1994	=item $player_object->enter_exit ($exit_object)	2726	=item $player_object->enter_exit ($exit_object)
1995		2727
…		…
2015	}	2747	}
2016		2748
2017	sub prepare_random_map {	2749	sub prepare_random_map {
2018	my ($exit) = @_;	2750	my ($exit) = @_;
2019		2751
2020	my $guard = cf::lock_acquire "exit_prepare:$exit";
2021
2022	# all this does is basically replace the /! path by	2752	# all this does is basically replace the /! path by
2023	# a new random map path (?random/...) with a seed	2753	# a new random map path (?random/...) with a seed
2024	# that depends on the exit object	2754	# that depends on the exit object
2025		2755
2026	my $rmp = parse_random_map_params $exit->msg;	2756	my $rmp = parse_random_map_params $exit->msg;
…		…
2028	if ($exit->map) {	2758	if ($exit->map) {
2029	$rmp->{region} = $exit->region->name;	2759	$rmp->{region} = $exit->region->name;
2030	$rmp->{origin_map} = $exit->map->path;	2760	$rmp->{origin_map} = $exit->map->path;
2031	$rmp->{origin_x} = $exit->x;	2761	$rmp->{origin_x} = $exit->x;
2032	$rmp->{origin_y} = $exit->y;	2762	$rmp->{origin_y} = $exit->y;
		2763
		2764	$exit->map->touch;
2033	}	2765	}
2034		2766
2035	$rmp->{random_seed} ||= $exit->random_seed;	2767	$rmp->{random_seed} ||= $exit->random_seed;
2036		2768
2037	my $data = cf::to_json $rmp;	2769	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2038	my $md5 = Digest::MD5::md5_hex $data;	2770	my $md5 = Digest::MD5::md5_hex $data;
2039	my $meta = "$RANDOMDIR/$md5.meta";	2771	my $meta = "$RANDOMDIR/$md5.meta";
2040		2772
2041	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2773	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2042	aio_write $fh, 0, (length $data), $data, 0;	2774	aio_write $fh, 0, (length $data), $data, 0;
2043	undef $fh;	2775	undef $fh;
2044	aio_rename "$meta~", $meta;	2776	aio_rename "$meta~", $meta;
2045		2777
		2778	my $slaying = "?random/$md5";
		2779
		2780	if ($exit->valid) {
2046	$exit->slaying ("?random/$md5");	2781	$exit->slaying ("?random/$md5");
2047	$exit->msg (undef);	2782	$exit->msg (undef);
		2783	}
2048	}	2784	}
2049	}	2785	}
2050		2786
2051	sub cf::object::player::enter_exit {	2787	sub cf::object::player::enter_exit {
2052	my ($self, $exit) = @_;	2788	my ($self, $exit) = @_;
2053		2789
2054	return unless $self->type == cf::PLAYER;	2790	return unless $self->type == cf::PLAYER;
2055		2791
2056	if ($exit->slaying eq "/!") {
2057	#TODO: this should de-fi-ni-te-ly not be a sync-job
2058	# the problem is that $exit might not survive long enough
2059	# so it needs to be done right now, right here
2060	cf::sync_job { prepare_random_map $exit };
2061	}
2062
2063	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2064	my $hp = $exit->stats->hp;
2065	my $sp = $exit->stats->sp;
2066
2067	$self->enter_link;	2792	$self->enter_link;
2068		2793
2069	(async {	2794	(async {
2070	$self->deactivate_recursive; # just to be sure	2795	$Coro::current->{desc} = "enter_exit";
		2796
2071	unless (eval {	2797	unless (eval {
		2798	$self->deactivate_recursive; # just to be sure
		2799
		2800	# random map handling
		2801	{
		2802	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2803
		2804	prepare_random_map $exit
		2805	if $exit->slaying eq "/!";
		2806	}
		2807
		2808	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2809	my $x = $exit->stats->hp;
		2810	my $y = $exit->stats->sp;
		2811
2072	$self->goto ($slaying, $hp, $sp);	2812	$self->goto ($map, $x, $y);
2073		2813
		2814	# if exit is damned, update players death & WoR home-position
		2815	$self->contr->savebed ($map, $x, $y)
		2816	if $exit->flag (cf::FLAG_DAMNED);
		2817
2074	1;	2818	1
2075	}) {	2819	}) {
2076	$self->message ("Something went wrong deep within the crossfire server. "	2820	$self->message ("Something went wrong deep within the deliantra server. "
2077	. "I'll try to bring you back to the map you were before. "	2821	. "I'll try to bring you back to the map you were before. "
2078	. "Please report this to the dungeon master!",	2822	. "Please report this to the dungeon master!",
2079	cf::NDI_UNIQUE | cf::NDI_RED);	2823	cf::NDI_UNIQUE | cf::NDI_RED);
2080		2824
2081	warn "ERROR in enter_exit: $@";	2825	warn "ERROR in enter_exit: $@";
…		…
2100		2844
2101	utf8::encode $text;	2845	utf8::encode $text;
2102	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2846	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2103	}	2847	}
2104		2848
		2849	=item $client->send_big_packet ($pkt)
		2850
		2851	Like C<send_packet>, but tries to compress large packets, and fragments
		2852	them as required.
		2853
		2854	=cut
		2855
		2856	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2857
		2858	sub cf::client::send_big_packet {
		2859	my ($self, $pkt) = @_;
		2860
		2861	# try lzf for large packets
		2862	$pkt = "lzf " . Compress::LZF::compress $pkt
		2863	if 1024 <= length $pkt and $self->{can_lzf};
		2864
		2865	# split very large packets
		2866	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2867	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2868	$pkt = "frag";
		2869	}
		2870
		2871	$self->send_packet ($pkt);
		2872	}
		2873
		2874	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2875
		2876	Send a drawinfo or msg packet to the client, formatting the msg for the
		2877	client if neccessary. C<$type> should be a string identifying the type of
		2878	the message, with C<log> being the default. If C<$color> is negative, suppress
		2879	the message unless the client supports the msg packet.
		2880
		2881	=cut
		2882
		2883	# non-persistent channels (usually the info channel)
		2884	our %CHANNEL = (
		2885	"c/motd" => {
		2886	id => "infobox",
		2887	title => "MOTD",
		2888	reply => undef,
		2889	tooltip => "The message of the day",
		2890	},
		2891	"c/identify" => {
		2892	id => "infobox",
		2893	title => "Identify",
		2894	reply => undef,
		2895	tooltip => "Items recently identified",
		2896	},
		2897	"c/examine" => {
		2898	id => "infobox",
		2899	title => "Examine",
		2900	reply => undef,
		2901	tooltip => "Signs and other items you examined",
		2902	},
		2903	"c/shopinfo" => {
		2904	id => "infobox",
		2905	title => "Shop Info",
		2906	reply => undef,
		2907	tooltip => "What your bargaining skill tells you about the shop",
		2908	},
		2909	"c/book" => {
		2910	id => "infobox",
		2911	title => "Book",
		2912	reply => undef,
		2913	tooltip => "The contents of a note or book",
		2914	},
		2915	"c/lookat" => {
		2916	id => "infobox",
		2917	title => "Look",
		2918	reply => undef,
		2919	tooltip => "What you saw there",
		2920	},
		2921	"c/who" => {
		2922	id => "infobox",
		2923	title => "Players",
		2924	reply => undef,
		2925	tooltip => "Shows players who are currently online",
		2926	},
		2927	"c/body" => {
		2928	id => "infobox",
		2929	title => "Body Parts",
		2930	reply => undef,
		2931	tooltip => "Shows which body parts you posess and are available",
		2932	},
		2933	"c/statistics" => {
		2934	id => "infobox",
		2935	title => "Statistics",
		2936	reply => undef,
		2937	tooltip => "Shows your primary statistics",
		2938	},
		2939	"c/skills" => {
		2940	id => "infobox",
		2941	title => "Skills",
		2942	reply => undef,
		2943	tooltip => "Shows your experience per skill and item power",
		2944	},
		2945	"c/shopitems" => {
		2946	id => "infobox",
		2947	title => "Shop Items",
		2948	reply => undef,
		2949	tooltip => "Shows the items currently for sale in this shop",
		2950	},
		2951	"c/resistances" => {
		2952	id => "infobox",
		2953	title => "Resistances",
		2954	reply => undef,
		2955	tooltip => "Shows your resistances",
		2956	},
		2957	"c/pets" => {
		2958	id => "infobox",
		2959	title => "Pets",
		2960	reply => undef,
		2961	tooltip => "Shows information abotu your pets/a specific pet",
		2962	},
		2963	"c/perceiveself" => {
		2964	id => "infobox",
		2965	title => "Perceive Self",
		2966	reply => undef,
		2967	tooltip => "You gained detailed knowledge about yourself",
		2968	},
		2969	"c/uptime" => {
		2970	id => "infobox",
		2971	title => "Uptime",
		2972	reply => undef,
		2973	tooltip => "How long the server has been running since last restart",
		2974	},
		2975	"c/mapinfo" => {
		2976	id => "infobox",
		2977	title => "Map Info",
		2978	reply => undef,
		2979	tooltip => "Information related to the maps",
		2980	},
		2981	"c/party" => {
		2982	id => "party",
		2983	title => "Party",
		2984	reply => "gsay ",
		2985	tooltip => "Messages and chat related to your party",
		2986	},
		2987	"c/death" => {
		2988	id => "death",
		2989	title => "Death",
		2990	reply => undef,
		2991	tooltip => "Reason for and more info about your most recent death",
		2992	},
		2993	"c/say" => $SAY_CHANNEL,
		2994	"c/chat" => $CHAT_CHANNEL,
		2995	);
		2996
		2997	sub cf::client::send_msg {
		2998	my ($self, $channel, $msg, $color, @extra) = @_;
		2999
		3000	$msg = $self->pl->expand_cfpod ($msg)
		3001	unless $color & cf::NDI_VERBATIM;
		3002
		3003	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3004
		3005	# check predefined channels, for the benefit of C
		3006	if ($CHANNEL{$channel}) {
		3007	$channel = $CHANNEL{$channel};
		3008
		3009	$self->ext_msg (channel_info => $channel);
		3010	$channel = $channel->{id};
		3011
		3012	} elsif (ref $channel) {
		3013	# send meta info to client, if not yet sent
		3014	unless (exists $self->{channel}{$channel->{id}}) {
		3015	$self->{channel}{$channel->{id}} = $channel;
		3016	$self->ext_msg (channel_info => $channel);
		3017	}
		3018
		3019	$channel = $channel->{id};
		3020	}
		3021
		3022	return unless @extra || length $msg;
		3023
		3024	# default colour, mask it out
		3025	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3026	if $color & cf::NDI_DEF;
		3027
		3028	my $pkt = "msg "
		3029	. $self->{json_coder}->encode (
		3030	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3031	);
		3032
		3033	$self->send_big_packet ($pkt);
		3034	}
		3035
2105	=item $client->ext_event ($type, %msg)	3036	=item $client->ext_msg ($type, @msg)
2106		3037
2107	Sends an exti event to the client.	3038	Sends an ext event to the client.
2108		3039
2109	=cut	3040	=cut
2110		3041
2111	sub cf::client::ext_event($$%) {	3042	sub cf::client::ext_msg($$@) {
2112	my ($self, $type, %msg) = @_;	3043	my ($self, $type, @msg) = @_;
2113		3044
		3045	if ($self->extcmd == 2) {
		3046	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3047	} elsif ($self->extcmd == 1) { # TODO: remove
2114	$msg{msgtype} = "event_$type";	3048	push @msg, msgtype => "event_$type";
2115	$self->send_packet ("ext " . cf::to_json \%msg);	3049	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3050	}
		3051	}
		3052
		3053	=item $client->ext_reply ($msgid, @msg)
		3054
		3055	Sends an ext reply to the client.
		3056
		3057	=cut
		3058
		3059	sub cf::client::ext_reply($$@) {
		3060	my ($self, $id, @msg) = @_;
		3061
		3062	if ($self->extcmd == 2) {
		3063	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3064	} elsif ($self->extcmd == 1) {
		3065	#TODO: version 1, remove
		3066	unshift @msg, msgtype => "reply", msgid => $id;
		3067	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3068	}
2116	}	3069	}
2117		3070
2118	=item $success = $client->query ($flags, "text", \&cb)	3071	=item $success = $client->query ($flags, "text", \&cb)
2119		3072
2120	Queues a query to the client, calling the given callback with	3073	Queues a query to the client, calling the given callback with
2121	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3074	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2122	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3075	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2123		3076
2124	Queries can fail, so check the return code. Or don't, as queries will become	3077	Queries can fail, so check the return code. Or don't, as queries will
2125	reliable at some point in the future.	3078	become reliable at some point in the future.
2126		3079
2127	=cut	3080	=cut
2128		3081
2129	sub cf::client::query {	3082	sub cf::client::query {
2130	my ($self, $flags, $text, $cb) = @_;	3083	my ($self, $flags, $text, $cb) = @_;
…		…
2138	utf8::encode $text;	3091	utf8::encode $text;
2139	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3092	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2140		3093
2141	$self->send_packet ($self->{query_queue}[0][0])	3094	$self->send_packet ($self->{query_queue}[0][0])
2142	if @{ $self->{query_queue} } == 1;	3095	if @{ $self->{query_queue} } == 1;
		3096
		3097	1
2143	}	3098	}
2144		3099
2145	cf::client->attach (	3100	cf::client->attach (
		3101	on_connect => sub {
		3102	my ($ns) = @_;
		3103
		3104	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3105	},
2146	on_reply => sub {	3106	on_reply => sub {
2147	my ($ns, $msg) = @_;	3107	my ($ns, $msg) = @_;
2148		3108
2149	# this weird shuffling is so that direct followup queries	3109	# this weird shuffling is so that direct followup queries
2150	# get handled first	3110	# get handled first
…		…
2162	} else {	3122	} else {
2163	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3123	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2164	}	3124	}
2165	}	3125	}
2166	},	3126	},
		3127	on_exticmd => sub {
		3128	my ($ns, $buf) = @_;
		3129
		3130	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3131
		3132	if (ref $msg) {
		3133	my ($type, $reply, @payload) =
		3134	"ARRAY" eq ref $msg
		3135	? @$msg
		3136	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3137
		3138	my @reply;
		3139
		3140	if (my $cb = $EXTICMD{$type}) {
		3141	@reply = $cb->($ns, @payload);
		3142	}
		3143
		3144	$ns->ext_reply ($reply, @reply)
		3145	if $reply;
		3146
		3147	} else {
		3148	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3149	}
		3150
		3151	cf::override;
		3152	},
2167	);	3153	);
2168		3154
2169	=item $client->async (\&cb)	3155	=item $client->async (\&cb)
2170		3156
2171	Create a new coroutine, running the specified callback. The coroutine will	3157	Create a new coroutine, running the specified callback. The coroutine will
…		…
2187		3173
2188	$coro	3174	$coro
2189	}	3175	}
2190		3176
2191	cf::client->attach (	3177	cf::client->attach (
2192	on_destroy => sub {	3178	on_client_destroy => sub {
2193	my ($ns) = @_;	3179	my ($ns) = @_;
2194		3180
2195	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3181	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2196	},	3182	},
2197	);	3183	);
…		…
2212	our $safe = new Safe "safe";	3198	our $safe = new Safe "safe";
2213	our $safe_hole = new Safe::Hole;	3199	our $safe_hole = new Safe::Hole;
2214		3200
2215	$SIG{FPE} = 'IGNORE';	3201	$SIG{FPE} = 'IGNORE';
2216		3202
2217	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3203	$safe->permit_only (Opcode::opset qw(
		3204	:base_core :base_mem :base_orig :base_math :base_loop
		3205	grepstart grepwhile mapstart mapwhile
		3206	sort time
		3207	));
2218		3208
2219	# here we export the classes and methods available to script code	3209	# here we export the classes and methods available to script code
2220		3210
2221	=pod	3211	=pod
2222		3212
2223	The following functions and methods are available within a safe environment:	3213	The following functions and methods are available within a safe environment:
2224		3214
2225	cf::object contr pay_amount pay_player map	3215	cf::object
		3216	contr pay_amount pay_player map x y force_find force_add destroy
		3217	insert remove name archname title slaying race decrease split
		3218	value
		3219
2226	cf::object::player player	3220	cf::object::player
2227	cf::player peaceful	3221	player
2228	cf::map trigger	3222
		3223	cf::player
		3224	peaceful
		3225
		3226	cf::map
		3227	trigger
2229		3228
2230	=cut	3229	=cut
2231		3230
2232	for (	3231	for (
2233	["cf::object" => qw(contr pay_amount pay_player map)],	3232	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3233	insert remove inv nrof name archname title slaying race
		3234	decrease split destroy change_exp value msg lore send_msg)],
2234	["cf::object::player" => qw(player)],	3235	["cf::object::player" => qw(player)],
2235	["cf::player" => qw(peaceful)],	3236	["cf::player" => qw(peaceful send_msg)],
2236	["cf::map" => qw(trigger)],	3237	["cf::map" => qw(trigger)],
2237	) {	3238	) {
2238	no strict 'refs';	3239	no strict 'refs';
2239	my ($pkg, @funs) = @$_;	3240	my ($pkg, @funs) = @$_;
2240	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3241	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2258		3259
2259	my $qcode = $code;	3260	my $qcode = $code;
2260	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3261	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2261	$qcode =~ s/\n/\\n/g;	3262	$qcode =~ s/\n/\\n/g;
2262		3263
		3264	%vars = (_dummy => 0) unless %vars;
		3265
		3266	my @res;
2263	local $_;	3267	local $_;
2264	local @safe::cf::_safe_eval_args = values %vars;
2265		3268
2266	my $eval =	3269	my $eval =
2267	"do {\n"	3270	"do {\n"
2268	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3271	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2269	. "#line 0 \"{$qcode}\"\n"	3272	. "#line 0 \"{$qcode}\"\n"
2270	. $code	3273	. $code
2271	. "\n}"	3274	. "\n}"
2272	;	3275	;
2273		3276
		3277	if ($CFG{safe_eval}) {
2274	sub_generation_inc;	3278	sub_generation_inc;
		3279	local @safe::cf::_safe_eval_args = values %vars;
2275	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3280	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2276	sub_generation_inc;	3281	sub_generation_inc;
		3282	} else {
		3283	local @cf::_safe_eval_args = values %vars;
		3284	@res = wantarray ? eval eval : scalar eval $eval;
		3285	}
2277		3286
2278	if ($@) {	3287	if ($@) {
2279	warn "$@";	3288	warn "$@";
2280	warn "while executing safe code '$code'\n";	3289	warn "while executing safe code '$code'\n";
2281	warn "with arguments " . (join " ", %vars) . "\n";	3290	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2300	=cut	3309	=cut
2301		3310
2302	sub register_script_function {	3311	sub register_script_function {
2303	my ($fun, $cb) = @_;	3312	my ($fun, $cb) = @_;
2304		3313
2305	no strict 'refs';	3314	$fun = "safe::$fun" if $CFG{safe_eval};
2306	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3315	*$fun = $safe_hole->wrap ($cb);
2307	}	3316	}
2308		3317
2309	=back	3318	=back
2310		3319
2311	=cut	3320	=cut
2312
2313	#############################################################################
2314
2315	=head2 EXTENSION DATABASE SUPPORT
2316
2317	Crossfire maintains a very simple database for extension use. It can
2318	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2319	convert to/from binary).
2320
2321	The parameter C<$family> should best start with the name of the extension
2322	using it, it should be unique.
2323
2324	=over 4
2325
2326	=item $value = cf::db_get $family => $key
2327
2328	Returns a single value from the database.
2329
2330	=item cf::db_put $family => $key => $value
2331
2332	Stores the given C<$value> in the family.
2333
2334	=cut
2335
2336	our $DB;
2337
2338	sub db_init {
2339	unless ($DB) {
2340	$DB = BDB::db_create $DB_ENV;
2341
2342	cf::sync_job {
2343	eval {
2344	$DB->set_flags (BDB::CHKSUM);
2345
2346	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2347	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2348	cf::cleanup "db_open(db): $!" if $!;
2349	};
2350	cf::cleanup "db_open(db): $@" if $@;
2351	};
2352	}
2353	}
2354
2355	sub db_get($$) {
2356	my $key = "$_[0]/$_[1]";
2357
2358	cf::sync_job {
2359	BDB::db_get $DB, undef, $key, my $data;
2360
2361	$! ? ()
2362	: $data
2363	}
2364	}
2365
2366	sub db_put($$$) {
2367	BDB::dbreq_pri 4;
2368	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2369	}
2370
2371	=item cf::cache $id => [$paths...], $processversion => $process
2372
2373	Generic caching function that returns the value of the resource $id,
2374	caching and regenerating as required.
2375
2376	This function can block.
2377
2378	=cut
2379
2380	sub cache {
2381	my ($id, $src, $processversion, $process) = @_;
2382
2383	my $meta =
2384	join "\x00",
2385	$processversion,
2386	map {
2387	aio_stat $_
2388	and Carp::croak "$_: $!";
2389
2390	($_, (stat _)[7,9])
2391	} @$src;
2392
2393	my $dbmeta = db_get cache => "$id/meta";
2394	if ($dbmeta ne $meta) {
2395	# changed, we may need to process
2396
2397	my @data;
2398	my $md5;
2399
2400	for (0 .. $#$src) {
2401	0 <= aio_load $src->[$_], $data[$_]
2402	or Carp::croak "$src->[$_]: $!";
2403	}
2404
2405	# if processing is expensive, check
2406	# checksum first
2407	if (1) {
2408	$md5 =
2409	join "\x00",
2410	$processversion,
2411	map {
2412	Coro::cede;
2413	($src->[$_], Digest::MD5::md5_hex $data[$_])
2414	} 0.. $#$src;
2415
2416
2417	my $dbmd5 = db_get cache => "$id/md5";
2418	if ($dbmd5 eq $md5) {
2419	db_put cache => "$id/meta", $meta;
2420
2421	return db_get cache => "$id/data";
2422	}
2423	}
2424
2425	my $t1 = Time::HiRes::time;
2426	my $data = $process->(\@data);
2427	my $t2 = Time::HiRes::time;
2428
2429	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2430
2431	db_put cache => "$id/data", $data;
2432	db_put cache => "$id/md5" , $md5;
2433	db_put cache => "$id/meta", $meta;
2434
2435	return $data;
2436	}
2437
2438	db_get cache => "$id/data"
2439	}
2440
2441	=item fork_call { }, $args
2442
2443	Executes the given code block with the given arguments in a seperate
2444	process, returning the results. Everything must be serialisable with
2445	Coro::Storable. May, of course, block. Note that the executed sub may
2446	never block itself or use any form of Event handling.
2447
2448	=cut
2449
2450	sub fork_call(&@) {
2451	my ($cb, @args) = @_;
2452
2453	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2454	# or die "socketpair: $!";
2455	pipe my $fh1, my $fh2
2456	or die "pipe: $!";
2457
2458	if (my $pid = fork) {
2459	close $fh2;
2460
2461	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2462	$res = Coro::Storable::thaw $res;
2463
2464	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2465
2466	die $$res unless "ARRAY" eq ref $res;
2467
2468	return wantarray ? @$res : $res->[-1];
2469	} else {
2470	reset_signals;
2471	local $SIG{__WARN__};
2472	local $SIG{__DIE__};
2473	eval {
2474	close $fh1;
2475
2476	my @res = eval { $cb->(@args) };
2477	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2478	};
2479
2480	warn $@ if $@;
2481	_exit 0;
2482	}
2483	}
2484		3321
2485	#############################################################################	3322	#############################################################################
2486	# the server's init and main functions	3323	# the server's init and main functions
2487		3324
2488	sub load_facedata($) {	3325	sub load_facedata($) {
2489	my ($path) = @_;	3326	my ($path) = @_;
		3327
		3328	# HACK to clear player env face cache, we need some signal framework
		3329	# for this (global event?)
		3330	%ext::player_env::MUSIC_FACE_CACHE = ();
		3331
		3332	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2490		3333
2491	warn "loading facedata from $path\n";	3334	warn "loading facedata from $path\n";
2492		3335
2493	my $facedata;	3336	my $facedata;
2494	0 < aio_load $path, $facedata	3337	0 < aio_load $path, $facedata
…		…
2497	$facedata = Coro::Storable::thaw $facedata;	3340	$facedata = Coro::Storable::thaw $facedata;
2498		3341
2499	$facedata->{version} == 2	3342	$facedata->{version} == 2
2500	or cf::cleanup "$path: version mismatch, cannot proceed.";	3343	or cf::cleanup "$path: version mismatch, cannot proceed.";
2501		3344
		3345	# patch in the exptable
		3346	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3347	$facedata->{resource}{"res/exp_table"} = {
		3348	type => FT_RSRC,
		3349	data => $exp_table,
		3350	hash => (Digest::MD5::md5 $exp_table),
		3351	};
		3352	cf::cede_to_tick;
		3353
2502	{	3354	{
2503	my $faces = $facedata->{faceinfo};	3355	my $faces = $facedata->{faceinfo};
2504		3356
2505	while (my ($face, $info) = each %$faces) {	3357	while (my ($face, $info) = each %$faces) {
2506	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3358	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3359
2507	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3360	cf::face::set_visibility $idx, $info->{visibility};
		3361	cf::face::set_magicmap $idx, $info->{magicmap};
2508	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3362	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2509	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3363	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2510	Coro::cede;	3364
		3365	cf::cede_to_tick;
2511	}	3366	}
2512		3367
2513	while (my ($face, $info) = each %$faces) {	3368	while (my ($face, $info) = each %$faces) {
2514	next unless $info->{smooth};	3369	next unless $info->{smooth};
		3370
2515	my $idx = cf::face::find $face	3371	my $idx = cf::face::find $face
2516	or next;	3372	or next;
		3373
2517	if (my $smooth = cf::face::find $info->{smooth}) {	3374	if (my $smooth = cf::face::find $info->{smooth}) {
		3375	cf::face::set_smooth $idx, $smooth;
2518	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3376	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2519	} else {	3377	} else {
2520	warn "smooth face '$info->{smooth}' not found for face '$face'";	3378	warn "smooth face '$info->{smooth}' not found for face '$face'";
2521	}	3379	}
2522	Coro::cede;	3380
		3381	cf::cede_to_tick;
2523	}	3382	}
2524	}	3383	}
2525		3384
2526	{	3385	{
2527	my $anims = $facedata->{animinfo};	3386	my $anims = $facedata->{animinfo};
2528		3387
2529	while (my ($anim, $info) = each %$anims) {	3388	while (my ($anim, $info) = each %$anims) {
2530	cf::anim::set $anim, $info->{frames}, $info->{facings};	3389	cf::anim::set $anim, $info->{frames}, $info->{facings};
2531	Coro::cede;	3390	cf::cede_to_tick;
2532	}	3391	}
2533		3392
2534	cf::anim::invalidate_all; # d'oh	3393	cf::anim::invalidate_all; # d'oh
2535	}	3394	}
2536		3395
		3396	{
		3397	my $res = $facedata->{resource};
		3398
		3399	while (my ($name, $info) = each %$res) {
		3400	if (defined $info->{type}) {
		3401	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3402
		3403	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3404	cf::face::set_type $idx, $info->{type};
		3405	} else {
		3406	$RESOURCE{$name} = $info;
		3407	}
		3408
		3409	cf::cede_to_tick;
		3410	}
		3411	}
		3412
		3413	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3414
2537	1	3415	1
2538	}	3416	}
2539		3417
		3418	cf::global->attach (on_resource_update => sub {
		3419	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3420	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3421
		3422	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3423	my $sound = $soundconf->{compat}[$_]
		3424	or next;
		3425
		3426	my $face = cf::face::find "sound/$sound->[1]";
		3427	cf::sound::set $sound->[0] => $face;
		3428	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3429	}
		3430
		3431	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3432	my $face = cf::face::find "sound/$v";
		3433	cf::sound::set $k => $face;
		3434	}
		3435	}
		3436	});
		3437
		3438	register_exticmd fx_want => sub {
		3439	my ($ns, $want) = @_;
		3440
		3441	while (my ($k, $v) = each %$want) {
		3442	$ns->fx_want ($k, $v);
		3443	}
		3444	};
		3445
		3446	sub load_resource_file($) {
		3447	my $guard = lock_acquire "load_resource_file";
		3448
		3449	my $status = load_resource_file_ $_[0];
		3450	get_slot 0.1, 100;
		3451	cf::arch::commit_load;
		3452
		3453	$status
		3454	}
		3455
2540	sub reload_regions {	3456	sub reload_regions {
		3457	# HACK to clear player env face cache, we need some signal framework
		3458	# for this (global event?)
		3459	%ext::player_env::MUSIC_FACE_CACHE = ();
		3460
2541	load_resource_file "$MAPDIR/regions"	3461	load_resource_file "$MAPDIR/regions"
2542	or die "unable to load regions file\n";	3462	or die "unable to load regions file\n";
		3463
		3464	for (cf::region::list) {
		3465	$_->{match} = qr/$_->{match}/
		3466	if exists $_->{match};
		3467	}
2543	}	3468	}
2544		3469
2545	sub reload_facedata {	3470	sub reload_facedata {
2546	load_facedata "$DATADIR/facedata"	3471	load_facedata "$DATADIR/facedata"
2547	or die "unable to load facedata\n";	3472	or die "unable to load facedata\n";
…		…
2558	}	3483	}
2559		3484
2560	sub reload_resources {	3485	sub reload_resources {
2561	warn "reloading resource files...\n";	3486	warn "reloading resource files...\n";
2562		3487
2563	reload_regions;
2564	reload_facedata;	3488	reload_facedata;
2565	reload_archetypes;	3489	reload_archetypes;
		3490	reload_regions;
2566	reload_treasures;	3491	reload_treasures;
2567		3492
2568	warn "finished reloading resource files\n";	3493	warn "finished reloading resource files\n";
2569	}	3494	}
2570		3495
2571	sub init {	3496	sub reload_config {
2572	reload_resources;	3497	warn "reloading config file...\n";
2573	}
2574		3498
2575	sub cfg_load {
2576	open my $fh, "<:utf8", "$CONFDIR/config"	3499	open my $fh, "<:utf8", "$CONFDIR/config"
2577	or return;	3500	or return;
2578		3501
2579	local $/;	3502	local $/;
2580	*CFG = YAML::Syck::Load <$fh>;	3503	*CFG = YAML::XS::Load scalar <$fh>;
2581		3504
2582	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3505	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2583		3506
2584	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3507	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2585	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3508	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2589	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3512	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2590	and die "WARNING: m(un)lockall failed: $!\n";	3513	and die "WARNING: m(un)lockall failed: $!\n";
2591	};	3514	};
2592	warn $@ if $@;	3515	warn $@ if $@;
2593	}	3516	}
		3517
		3518	warn "finished reloading resource files\n";
		3519	}
		3520
		3521	sub pidfile() {
		3522	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3523	or die "$PIDFILE: $!";
		3524	flock $fh, &Fcntl::LOCK_EX
		3525	or die "$PIDFILE: flock: $!";
		3526	$fh
		3527	}
		3528
		3529	# make sure only one server instance is running at any one time
		3530	sub atomic {
		3531	my $fh = pidfile;
		3532
		3533	my $pid = <$fh>;
		3534	kill 9, $pid if $pid > 0;
		3535
		3536	seek $fh, 0, 0;
		3537	print $fh $$;
		3538	}
		3539
		3540	sub main_loop {
		3541	warn "EV::loop starting\n";
		3542	if (1) {
		3543	EV::loop;
		3544	}
		3545	warn "EV::loop returned\n";
		3546	goto &main_loop unless $REALLY_UNLOOP;
2594	}	3547	}
2595		3548
2596	sub main {	3549	sub main {
		3550	cf::init_globals; # initialise logging
		3551
		3552	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3553	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3554	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3555	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3556
		3557	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3558
2597	# we must not ever block the main coroutine	3559	# we must not ever block the main coroutine
2598	local $Coro::idle = sub {	3560	local $Coro::idle = sub {
2599	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3561	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2600	(async {	3562	(async {
2601	Event::one_event;	3563	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3564	EV::loop EV::LOOP_ONESHOT;
2602	})->prio (Coro::PRIO_MAX);	3565	})->prio (Coro::PRIO_MAX);
2603	};	3566	};
2604		3567
2605	cfg_load;	3568	evthread_start IO::AIO::poll_fileno;
		3569
		3570	cf::sync_job {
		3571	cf::init_experience;
		3572	cf::init_anim;
		3573	cf::init_attackmess;
		3574	cf::init_dynamic;
		3575
		3576	cf::load_settings;
		3577	cf::load_materials;
		3578
		3579	reload_resources;
		3580	reload_config;
2606	db_init;	3581	db_init;
		3582
		3583	cf::init_uuid;
		3584	cf::init_signals;
		3585	cf::init_skills;
		3586
		3587	cf::init_beforeplay;
		3588
		3589	atomic;
		3590
2607	load_extensions;	3591	load_extensions;
2608		3592
2609	$TICK_WATCHER->start;	3593	utime time, time, $RUNTIMEFILE;
2610	Event::loop;	3594
		3595	# no (long-running) fork's whatsoever before this point(!)
		3596	use POSIX ();
		3597	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3598
		3599	(pop @POST_INIT)->(0) while @POST_INIT;
		3600	};
		3601
		3602	cf::object::thawer::errors_are_fatal 0;
		3603	warn "parse errors in files are no longer fatal from this point on.\n";
		3604
		3605	main_loop;
2611	}	3606	}
2612		3607
2613	#############################################################################	3608	#############################################################################
2614	# initialisation and cleanup	3609	# initialisation and cleanup
2615		3610
2616	# install some emergency cleanup handlers	3611	# install some emergency cleanup handlers
2617	BEGIN {	3612	BEGIN {
		3613	our %SIGWATCHER = ();
2618	for my $signal (qw(INT HUP TERM)) {	3614	for my $signal (qw(INT HUP TERM)) {
2619	Event->signal (	3615	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2620	reentrant => 0,
2621	data => WF_AUTOCANCEL,
2622	signal => $signal,
2623	prio => 0,
2624	cb => sub {
2625	cf::cleanup "SIG$signal";	3616	cf::cleanup "SIG$signal";
2626	},
2627	);	3617	};
		3618	}
		3619	}
		3620
		3621	sub write_runtime_sync {
		3622	my $t0 = AE::time;
		3623
		3624	# first touch the runtime file to show we are still running:
		3625	# the fsync below can take a very very long time.
		3626
		3627	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3628
		3629	my $guard = cf::lock_acquire "write_runtime";
		3630
		3631	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3632	or return;
		3633
		3634	my $value = $cf::RUNTIME + 90 + 10;
		3635	# 10 is the runtime save interval, for a monotonic clock
		3636	# 60 allows for the watchdog to kill the server.
		3637
		3638	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3639	and return;
		3640
		3641	# always fsync - this file is important
		3642	aio_fsync $fh
		3643	and return;
		3644
		3645	# touch it again to show we are up-to-date
		3646	aio_utime $fh, undef, undef;
		3647
		3648	close $fh
		3649	or return;
		3650
		3651	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3652	and return;
		3653
		3654	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3655
2628	}	3656	1
		3657	}
		3658
		3659	our $uuid_lock;
		3660	our $uuid_skip;
		3661
		3662	sub write_uuid_sync($) {
		3663	$uuid_skip ||= $_[0];
		3664
		3665	return if $uuid_lock;
		3666	local $uuid_lock = 1;
		3667
		3668	my $uuid = "$LOCALDIR/uuid";
		3669
		3670	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3671	or return;
		3672
		3673	my $value = uuid_seq uuid_cur;
		3674
		3675	unless ($value) {
		3676	warn "cowardly refusing to write zero uuid value!\n";
		3677	return;
		3678	}
		3679
		3680	my $value = uuid_str $value + $uuid_skip;
		3681	$uuid_skip = 0;
		3682
		3683	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3684	and return;
		3685
		3686	# always fsync - this file is important
		3687	aio_fsync $fh
		3688	and return;
		3689
		3690	close $fh
		3691	or return;
		3692
		3693	aio_rename "$uuid~", $uuid
		3694	and return;
		3695
		3696	warn "uuid file written ($value).\n";
		3697
		3698	1
		3699
		3700	}
		3701
		3702	sub write_uuid($$) {
		3703	my ($skip, $sync) = @_;
		3704
		3705	$sync ? write_uuid_sync $skip
		3706	: async { write_uuid_sync $skip };
2629	}	3707	}
2630		3708
2631	sub emergency_save() {	3709	sub emergency_save() {
2632	my $freeze_guard = cf::freeze_mainloop;	3710	my $freeze_guard = cf::freeze_mainloop;
2633		3711
2634	warn "enter emergency perl save\n";	3712	warn "emergency_perl_save: enter\n";
2635		3713
2636	cf::sync_job {	3714	cf::sync_job {
		3715	# this is a trade-off: we want to be very quick here, so
		3716	# save all maps without fsync, and later call a global sync
		3717	# (which in turn might be very very slow)
		3718	local $USE_FSYNC = 0;
		3719
2637	# use a peculiar iteration method to avoid tripping on perl	3720	# use a peculiar iteration method to avoid tripping on perl
2638	# refcount bugs in for. also avoids problems with players	3721	# refcount bugs in for. also avoids problems with players
2639	# and maps saved/destroyed asynchronously.	3722	# and maps saved/destroyed asynchronously.
2640	warn "begin emergency player save\n";	3723	warn "emergency_perl_save: begin player save\n";
2641	for my $login (keys %cf::PLAYER) {	3724	for my $login (keys %cf::PLAYER) {
2642	my $pl = $cf::PLAYER{$login} or next;	3725	my $pl = $cf::PLAYER{$login} or next;
2643	$pl->valid or next;	3726	$pl->valid or next;
		3727	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2644	$pl->save;	3728	$pl->save;
2645	}	3729	}
2646	warn "end emergency player save\n";	3730	warn "emergency_perl_save: end player save\n";
2647		3731
2648	warn "begin emergency map save\n";	3732	warn "emergency_perl_save: begin map save\n";
2649	for my $path (keys %cf::MAP) {	3733	for my $path (keys %cf::MAP) {
2650	my $map = $cf::MAP{$path} or next;	3734	my $map = $cf::MAP{$path} or next;
2651	$map->valid or next;	3735	$map->valid or next;
2652	$map->save;	3736	$map->save;
2653	}	3737	}
2654	warn "end emergency map save\n";	3738	warn "emergency_perl_save: end map save\n";
2655		3739
2656	warn "begin emergency database checkpoint\n";	3740	warn "emergency_perl_save: begin database checkpoint\n";
2657	BDB::db_env_txn_checkpoint $DB_ENV;	3741	BDB::db_env_txn_checkpoint $DB_ENV;
2658	warn "end emergency database checkpoint\n";	3742	warn "emergency_perl_save: end database checkpoint\n";
		3743
		3744	warn "emergency_perl_save: begin write uuid\n";
		3745	write_uuid_sync 1;
		3746	warn "emergency_perl_save: end write uuid\n";
2659	};	3747	};
2660		3748
		3749	warn "emergency_perl_save: starting sync()\n";
		3750	IO::AIO::aio_sync sub {
		3751	warn "emergency_perl_save: finished sync()\n";
		3752	};
		3753
2661	warn "leave emergency perl save\n";	3754	warn "emergency_perl_save: leave\n";
2662	}	3755	}
2663		3756
2664	sub post_cleanup {	3757	sub post_cleanup {
2665	my ($make_core) = @_;	3758	my ($make_core) = @_;
2666		3759
2667	warn Carp::longmess "post_cleanup backtrace"	3760	warn Carp::longmess "post_cleanup backtrace"
2668	if $make_core;	3761	if $make_core;
		3762
		3763	my $fh = pidfile;
		3764	unlink $PIDFILE if <$fh> == $$;
		3765	}
		3766
		3767	# a safer delete_package, copied from Symbol
		3768	sub clear_package($) {
		3769	my $pkg = shift;
		3770
		3771	# expand to full symbol table name if needed
		3772	unless ($pkg =~ /^main::.*::$/) {
		3773	$pkg = "main$pkg" if $pkg =~ /^::/;
		3774	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3775	$pkg .= '::' unless $pkg =~ /::$/;
		3776	}
		3777
		3778	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3779	my $stem_symtab = *{$stem}{HASH};
		3780
		3781	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3782	or return;
		3783
		3784	# clear all symbols
		3785	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3786	for my $name (keys %$leaf_symtab) {
		3787	_gv_clear *{"$pkg$name"};
		3788	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3789	}
		3790	warn "cleared package $pkg\n";#d#
2669	}	3791	}
2670		3792
2671	sub do_reload_perl() {	3793	sub do_reload_perl() {
2672	# can/must only be called in main	3794	# can/must only be called in main
2673	if ($Coro::current != $Coro::main) {	3795	if ($Coro::current != $Coro::main) {
2674	warn "can only reload from main coroutine";	3796	warn "can only reload from main coroutine";
2675	return;	3797	return;
2676	}	3798	}
2677		3799
		3800	return if $RELOAD++;
		3801
		3802	my $t1 = AE::time;
		3803
		3804	while ($RELOAD) {
2678	warn "reloading...";	3805	warn "reloading...";
2679		3806
2680	warn "entering sync_job";	3807	warn "entering sync_job";
2681		3808
2682	cf::sync_job {	3809	cf::sync_job {
2683	cf::write_runtime; # external watchdog should not bark	3810	cf::write_runtime_sync; # external watchdog should not bark
2684	cf::emergency_save;	3811	cf::emergency_save;
2685	cf::write_runtime; # external watchdog should not bark	3812	cf::write_runtime_sync; # external watchdog should not bark
2686		3813
2687	warn "syncing database to disk";	3814	warn "syncing database to disk";
2688	BDB::db_env_txn_checkpoint $DB_ENV;	3815	BDB::db_env_txn_checkpoint $DB_ENV;
2689		3816
2690	# if anything goes wrong in here, we should simply crash as we already saved	3817	# if anything goes wrong in here, we should simply crash as we already saved
2691		3818
2692	warn "cancelling all WF_AUTOCANCEL watchers";
2693	for (Event::all_watchers) {
2694	$_->cancel if $_->data & WF_AUTOCANCEL;
2695	}
2696
2697	warn "flushing outstanding aio requests";	3819	warn "flushing outstanding aio requests";
2698	for (;;) {
2699	BDB::flush;
2700	IO::AIO::flush;
2701	Coro::cede;
2702	last unless IO::AIO::nreqs || BDB::nreqs;	3820	while (IO::AIO::nreqs || BDB::nreqs) {
2703	warn "iterate...";	3821	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2704	}
2705
2706	++$RELOAD;
2707
2708	warn "cancelling all extension coros";
2709	$_->cancel for values %EXT_CORO;
2710	%EXT_CORO = ();
2711
2712	warn "removing commands";
2713	%COMMAND = ();
2714
2715	warn "removing ext commands";
2716	%EXTCMD = ();
2717
2718	warn "unloading/nuking all extensions";
2719	for my $pkg (@EXTS) {
2720	warn "... unloading $pkg";
2721
2722	if (my $cb = $pkg->can ("unload")) {
2723	eval {
2724	$cb->($pkg);
2725	1
2726	} or warn "$pkg unloaded, but with errors: $@";
2727	}	3822	}
2728		3823
2729	warn "... nuking $pkg";	3824	warn "cancelling all extension coros";
2730	Symbol::delete_package $pkg;	3825	$_->cancel for values %EXT_CORO;
2731	}	3826	%EXT_CORO = ();
2732		3827
2733	warn "unloading all perl modules loaded from $LIBDIR";	3828	warn "removing commands";
2734	while (my ($k, $v) = each %INC) {	3829	%COMMAND = ();
2735	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2736		3830
		3831	warn "removing ext/exti commands";
		3832	%EXTCMD = ();
		3833	%EXTICMD = ();
		3834
		3835	warn "unloading/nuking all extensions";
		3836	for my $pkg (@EXTS) {
2737	warn "... unloading $k";	3837	warn "... unloading $pkg";
2738	delete $INC{$k};
2739		3838
2740	$k =~ s/\.pm$//;
2741	$k =~ s/\//::/g;
2742
2743	if (my $cb = $k->can ("unload_module")) {	3839	if (my $cb = $pkg->can ("unload")) {
		3840	eval {
2744	$cb->();	3841	$cb->($pkg);
		3842	1
		3843	} or warn "$pkg unloaded, but with errors: $@";
		3844	}
		3845
		3846	warn "... clearing $pkg";
		3847	clear_package $pkg;
2745	}	3848	}
2746		3849
2747	Symbol::delete_package $k;	3850	warn "unloading all perl modules loaded from $LIBDIR";
		3851	while (my ($k, $v) = each %INC) {
		3852	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3853
		3854	warn "... unloading $k";
		3855	delete $INC{$k};
		3856
		3857	$k =~ s/\.pm$//;
		3858	$k =~ s/\//::/g;
		3859
		3860	if (my $cb = $k->can ("unload_module")) {
		3861	$cb->();
		3862	}
		3863
		3864	clear_package $k;
2748	}	3865	}
2749		3866
2750	warn "getting rid of safe::, as good as possible";	3867	warn "getting rid of safe::, as good as possible";
2751	Symbol::delete_package "safe::$_"	3868	clear_package "safe::$_"
2752	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3869	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2753		3870
2754	warn "unloading cf.pm \"a bit\"";	3871	warn "unloading cf.pm \"a bit\"";
2755	delete $INC{"cf.pm"};	3872	delete $INC{"cf.pm"};
2756	delete $INC{"cf/pod.pm"};	3873	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2757		3874
2758	# don't, removes xs symbols, too,	3875	# don't, removes xs symbols, too,
2759	# and global variables created in xs	3876	# and global variables created in xs
2760	#Symbol::delete_package __PACKAGE__;	3877	#clear_package __PACKAGE__;
2761		3878
2762	warn "unload completed, starting to reload now";	3879	warn "unload completed, starting to reload now";
2763		3880
2764	warn "reloading cf.pm";	3881	warn "reloading cf.pm";
2765	require cf;	3882	require cf;
2766	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3883	cf::_connect_to_perl_1;
2767		3884
2768	warn "loading config and database again";	3885	warn "loading config and database again";
2769	cf::cfg_load;	3886	cf::reload_config;
2770		3887
2771	warn "loading extensions";	3888	warn "loading extensions";
2772	cf::load_extensions;	3889	cf::load_extensions;
2773		3890
		3891	if ($REATTACH_ON_RELOAD) {
2774	warn "reattaching attachments to objects/players";	3892	warn "reattaching attachments to objects/players";
2775	_global_reattach; # objects, sockets	3893	_global_reattach; # objects, sockets
2776	warn "reattaching attachments to maps";	3894	warn "reattaching attachments to maps";
2777	reattach $_ for values %MAP;	3895	reattach $_ for values %MAP;
2778	warn "reattaching attachments to players";	3896	warn "reattaching attachments to players";
2779	reattach $_ for values %PLAYER;	3897	reattach $_ for values %PLAYER;
		3898	}
2780		3899
		3900	warn "running post_init jobs";
		3901	(pop @POST_INIT)->(1) while @POST_INIT;
		3902
2781	warn "leaving sync_job";	3903	warn "leaving sync_job";
2782		3904
2783	1	3905	1
2784	} or do {	3906	} or do {
2785	warn $@;	3907	warn $@;
2786	warn "error while reloading, exiting.";	3908	cf::cleanup "error while reloading, exiting.";
2787	exit 1;
2788	};	3909	};
2789		3910
2790	warn "reloaded";	3911	warn "reloaded";
		3912	--$RELOAD;
		3913	}
		3914
		3915	$t1 = AE::time - $t1;
		3916	warn "reload completed in ${t1}s\n";
2791	};	3917	};
2792		3918
2793	our $RELOAD_WATCHER; # used only during reload	3919	our $RELOAD_WATCHER; # used only during reload
2794		3920
2795	sub reload_perl() {	3921	sub reload_perl() {
2796	# doing reload synchronously and two reloads happen back-to-back,	3922	# doing reload synchronously and two reloads happen back-to-back,
2797	# coro crashes during coro_state_free->destroy here.	3923	# coro crashes during coro_state_free->destroy here.
2798		3924
2799	$RELOAD_WATCHER ||= Event->timer (	3925	$RELOAD_WATCHER ||= cf::async {
2800	reentrant => 0,	3926	Coro::AIO::aio_wait cache_extensions;
2801	after => 0,	3927
2802	data => WF_AUTOCANCEL,	3928	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
2803	cb => sub {
2804	do_reload_perl;	3929	do_reload_perl;
2805	undef $RELOAD_WATCHER;	3930	undef $RELOAD_WATCHER;
2806	},	3931	};
2807	);	3932	};
2808	}	3933	}
2809		3934
2810	register_command "reload" => sub {	3935	register_command "reload" => sub {
2811	my ($who, $arg) = @_;	3936	my ($who, $arg) = @_;
2812		3937
2813	if ($who->flag (FLAG_WIZ)) {	3938	if ($who->flag (FLAG_WIZ)) {
2814	$who->message ("reloading server.");	3939	$who->message ("reloading server.");
		3940	async {
		3941	$Coro::current->{desc} = "perl_reload";
2815	async { reload_perl };	3942	reload_perl;
		3943	};
2816	}	3944	}
2817	};	3945	};
2818		3946
2819	unshift @INC, $LIBDIR;	3947	unshift @INC, $LIBDIR;
2820		3948
…		…
2822		3950
2823	our @WAIT_FOR_TICK;	3951	our @WAIT_FOR_TICK;
2824	our @WAIT_FOR_TICK_BEGIN;	3952	our @WAIT_FOR_TICK_BEGIN;
2825		3953
2826	sub wait_for_tick {	3954	sub wait_for_tick {
2827	return unless $TICK_WATCHER->is_active;
2828	return if $Coro::current == $Coro::main;	3955	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2829		3956
2830	my $signal = new Coro::Signal;	3957	my $signal = new Coro::Signal;
2831	push @WAIT_FOR_TICK, $signal;	3958	push @WAIT_FOR_TICK, $signal;
2832	$signal->wait;	3959	$signal->wait;
2833	}	3960	}
2834		3961
2835	sub wait_for_tick_begin {	3962	sub wait_for_tick_begin {
2836	return unless $TICK_WATCHER->is_active;
2837	return if $Coro::current == $Coro::main;	3963	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2838		3964
2839	my $signal = new Coro::Signal;	3965	my $signal = new Coro::Signal;
2840	push @WAIT_FOR_TICK_BEGIN, $signal;	3966	push @WAIT_FOR_TICK_BEGIN, $signal;
2841	$signal->wait;	3967	$signal->wait;
2842	}	3968	}
2843		3969
2844	my $min = 1e6;#d#	3970	sub tick {
2845	my $avg = 10;
2846	$TICK_WATCHER = Event->timer (
2847	reentrant => 0,
2848	parked => 1,
2849	prio => 0,
2850	at => $NEXT_TICK || $TICK,
2851	data => WF_AUTOCANCEL,
2852	cb => sub {
2853	if ($Coro::current != $Coro::main) {	3971	if ($Coro::current != $Coro::main) {
2854	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3972	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2855	unless ++$bug_warning > 10;	3973	unless ++$bug_warning > 10;
2856	return;	3974	return;
2857	}	3975	}
2858		3976
2859	$NOW = $tick_start = Event::time;
2860
2861	cf::server_tick; # one server iteration	3977	cf::server_tick; # one server iteration
2862		3978
2863	0 && sync_job {#d#	3979	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2864	for(1..10) {
2865	my $t = Event::time;
2866	my $map = my $map = new_from_path cf::map "/tmp/x.map"
2867	or die;
2868		3980
2869	$map->width (50);	3981	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2870	$map->height (50);	3982	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2871	$map->alloc;	3983	Coro::async_pool {
2872	$map->_load_objects ("/tmp/x.map", 1);	3984	$Coro::current->{desc} = "runtime saver";
2873	my $t = Event::time - $t;	3985	write_runtime_sync
2874		3986	or warn "ERROR: unable to write runtime file: $!";
2875	#next unless $t < 0.0013;#d#
2876	if ($t < $min) {
2877	$min = $t;
2878	}
2879	$avg = $avg * 0.99 + $t * 0.01;
2880	}
2881	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
2882	exit 0;
2883	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2884	};	3987	};
		3988	}
2885		3989
2886	$RUNTIME += $TICK;
2887	$NEXT_TICK += $TICK;
2888
2889	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2890	$NEXT_RUNTIME_WRITE = $NOW + 10;
2891	Coro::async_pool {
2892	write_runtime
2893	or warn "ERROR: unable to write runtime file: $!";
2894	};
2895	}
2896
2897	# my $AFTER = Event::time;
2898	# warn $AFTER - $NOW;#d#
2899
2900	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3990	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2901	$sig->send;	3991	$sig->send;
2902	}	3992	}
2903	while (my $sig = shift @WAIT_FOR_TICK) {	3993	while (my $sig = shift @WAIT_FOR_TICK) {
2904	$sig->send;	3994	$sig->send;
2905	}	3995	}
2906		3996
2907	$NOW = Event::time;	3997	$LOAD = ($NOW - $TICK_START) / $TICK;
2908
2909	# if we are delayed by four ticks or more, skip them all
2910	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2911
2912	$TICK_WATCHER->at ($NEXT_TICK);
2913	$TICK_WATCHER->start;
2914
2915	$LOAD = ($NOW - $tick_start) / $TICK;
2916	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;	3998	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2917		3999
2918	_post_tick;	4000	if (0) {
2919		4001	if ($NEXT_TICK) {
2920		4002	my $jitter = $TICK_START - $NEXT_TICK;
		4003	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4004	warn "jitter $JITTER\n";#d#
		4005	}
2921	},	4006	}
2922	);	4007	}
2923		4008
2924	{	4009	{
2925	BDB::max_poll_time $TICK * 0.1;	4010	# configure BDB
2926	$BDB_POLL_WATCHER = Event->io (	4011
2927	reentrant => 0,
2928	fd => BDB::poll_fileno,
2929	poll => 'r',
2930	prio => 0,
2931	data => WF_AUTOCANCEL,
2932	cb => \&BDB::poll_cb,
2933	);
2934	BDB::min_parallel 8;	4012	BDB::min_parallel 16;
2935		4013	BDB::max_poll_reqs $TICK * 0.1;
2936	BDB::set_sync_prepare {	4014	$AnyEvent::BDB::WATCHER->priority (1);
2937	my $status;
2938	my $current = $Coro::current;
2939	(
2940	sub {
2941	$status = $!;
2942	$current->ready; undef $current;
2943	},
2944	sub {
2945	Coro::schedule while defined $current;
2946	$! = $status;
2947	},
2948	)
2949	};
2950		4015
2951	unless ($DB_ENV) {	4016	unless ($DB_ENV) {
2952	$DB_ENV = BDB::db_env_create;	4017	$DB_ENV = BDB::db_env_create;
		4018	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4019	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4020	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4021	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4022	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2953		4023
2954	cf::sync_job {	4024	cf::sync_job {
2955	eval {	4025	eval {
2956	BDB::db_env_open	4026	BDB::db_env_open
2957	$DB_ENV,	4027	$DB_ENV,
…		…
2959	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4029	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2960	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4030	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2961	0666;	4031	0666;
2962		4032
2963	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	4033	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2964
2965	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2966	$DB_ENV->set_lk_detect;
2967	};	4034	};
2968		4035
2969	cf::cleanup "db_env_open(db): $@" if $@;	4036	cf::cleanup "db_env_open(db): $@" if $@;
2970	};	4037	};
2971	}	4038	}
		4039
		4040	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4041	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4042	};
		4043	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4044	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4045	};
		4046	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4047	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4048	};
2972	}	4049	}
2973		4050
2974	{	4051	{
		4052	# configure IO::AIO
		4053
2975	IO::AIO::min_parallel 8;	4054	IO::AIO::min_parallel 8;
2976
2977	undef $Coro::AIO::WATCHER;
2978	IO::AIO::max_poll_time $TICK * 0.1;	4055	IO::AIO::max_poll_time $TICK * 0.1;
2979	$AIO_POLL_WATCHER = Event->io (	4056	undef $AnyEvent::AIO::WATCHER;
2980	reentrant => 0,
2981	data => WF_AUTOCANCEL,
2982	fd => IO::AIO::poll_fileno,
2983	poll => 'r',
2984	prio => 6,
2985	cb => \&IO::AIO::poll_cb,
2986	);
2987	}	4057	}
2988		4058
2989	my $_log_backtrace;	4059	my $_log_backtrace;
2990		4060
2991	sub _log_backtrace {	4061	sub _log_backtrace {
…		…
2994	$msg =~ s/\n//;	4064	$msg =~ s/\n//;
2995		4065
2996	# limit the # of concurrent backtraces	4066	# limit the # of concurrent backtraces
2997	if ($_log_backtrace < 2) {	4067	if ($_log_backtrace < 2) {
2998	++$_log_backtrace;	4068	++$_log_backtrace;
		4069	my $perl_bt = Carp::longmess $msg;
2999	async {	4070	async {
		4071	$Coro::current->{desc} = "abt $msg";
		4072
3000	my @bt = fork_call {	4073	my @bt = fork_call {
3001	@addr = map { sprintf "%x", $_ } @addr;	4074	@addr = map { sprintf "%x", $_ } @addr;
3002	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;	4075	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
3003	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"	4076	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
3004	or die "addr2line: $!";	4077	or die "addr2line: $!";
…		…
3012	}	4085	}
3013		4086
3014	@funcs	4087	@funcs
3015	};	4088	};
3016		4089
3017	LOG llevInfo, "[ABT] $msg\n";	4090	LOG llevInfo, "[ABT] $perl_bt\n";
		4091	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
3018	LOG llevInfo, "[ABT] $_\n" for @bt;	4092	LOG llevInfo, "[ABT] $_\n" for @bt;
3019	--$_log_backtrace;	4093	--$_log_backtrace;
3020	};	4094	};
3021	} else {	4095	} else {
3022	LOG llevInfo, "[ABT] $msg\n";	4096	LOG llevInfo, "[ABT] $msg\n";
3023	LOG llevInfo, "[ABT] [suppressed]\n";	4097	LOG llevInfo, "[ABT] [suppressed]\n";
3024	}	4098	}
3025	}	4099	}
3026		4100
3027	# load additional modules	4101	# load additional modules
3028	use cf::pod;	4102	require "cf/$_.pm" for @EXTRA_MODULES;
		4103	cf::_connect_to_perl_2;
3029		4104
3030	END { cf::emergency_save }	4105	END { cf::emergency_save }
3031		4106
3032	1	4107	1
3033		4108

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