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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.274 by root, Tue Jun 5 13:05:02 2007 UTC vs.
Revision 1.521 by root, Fri Apr 16 23:28:42 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";
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 || []};	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 $v->{meta}{mandatory};
		1441
		1442	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1443	delete $todo{$k};
		1444	} else {
		1445	$done{$k} = delete $todo{$k};
		1446	push @EXTS, $v->{pkg};
		1447	$progress = 1;
		1448
		1449	warn "$v->{base}: extension inactive.\n"
		1450	unless $active;
		1451	}
987	1	1452	}
988	} or warn "$ext not loaded: $@";	1453
		1454	unless ($progress) {
		1455	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1456
		1457	while (my ($k, $v) = each %todo) {
		1458	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1459	if exists $v->{meta}{mandatory};
		1460	}
		1461	}
		1462	}
989	}	1463	};
990	}	1464	}
991		1465
992	#############################################################################	1466	#############################################################################
993		1467
		1468	=back
		1469
994	=head2 CORE EXTENSIONS	1470	=head2 CORE EXTENSIONS
995		1471
996	Functions and methods that extend core crossfire objects.	1472	Functions and methods that extend core deliantra objects.
997		1473
998	=cut	1474	=cut
999		1475
1000	package cf::player;	1476	package cf::player;
1001		1477
1002	use Coro::AIO;	1478	use Coro::AIO;
1003		1479
1004	=head3 cf::player	1480	=head3 cf::player
1005		1481
1006	=over 4	1482	=over 4
		1483
		1484	=item cf::player::num_playing
		1485
		1486	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1487
		1488	=cut
		1489
		1490	sub num_playing {
		1491	scalar grep
		1492	$_->ob->map
		1493	&& !$_->hidden
		1494	&& !$_->ob->flag (cf::FLAG_WIZ),
		1495	cf::player::list
		1496	}
1007		1497
1008	=item cf::player::find $login	1498	=item cf::player::find $login
1009		1499
1010	Returns the given player object, loading it if necessary (might block).	1500	Returns the given player object, loading it if necessary (might block).
1011		1501
…		…
1030		1520
1031	sub exists($) {	1521	sub exists($) {
1032	my ($login) = @_;	1522	my ($login) = @_;
1033		1523
1034	$cf::PLAYER{$login}	1524	$cf::PLAYER{$login}
1035	or cf::sync_job { !aio_stat path $login }	1525	or !aio_stat path $login
1036	}	1526	}
1037		1527
1038	sub find($) {	1528	sub find($) {
1039	return $cf::PLAYER{$_[0]} || do {	1529	return $cf::PLAYER{$_[0]} || do {
1040	my $login = $_[0];	1530	my $login = $_[0];
…		…
1047	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1537	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1048	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1538	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1049	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1539	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1050	aio_unlink +(playerdir $login) . "/$login.pl";	1540	aio_unlink +(playerdir $login) . "/$login.pl";
1051		1541
1052	my $pl = load_pl path $login	1542	my $f = new_from_file cf::object::thawer path $login
1053	or return;	1543	or return;
		1544
		1545	my $pl = cf::player::load_pl $f
		1546	or return;
		1547
		1548	local $cf::PLAYER_LOADING{$login} = $pl;
		1549	$f->resolve_delayed_derefs;
1054	$cf::PLAYER{$login} = $pl	1550	$cf::PLAYER{$login} = $pl
1055	}	1551	}
1056	}	1552	}
1057	}	1553	}
		1554
		1555	cf::player->attach (
		1556	on_load => sub {
		1557	my ($pl, $path) = @_;
		1558
		1559	# restore slots saved in save, below
		1560	my $slots = delete $pl->{_slots};
		1561
		1562	$pl->ob->current_weapon ($slots->[0]);
		1563	$pl->combat_ob ($slots->[1]);
		1564	$pl->ranged_ob ($slots->[2]);
		1565	},
		1566	);
1058		1567
1059	sub save($) {	1568	sub save($) {
1060	my ($pl) = @_;	1569	my ($pl) = @_;
1061		1570
1062	return if $pl->{deny_save};	1571	return if $pl->{deny_save};
…		…
1067	return if $pl->{deny_save};	1576	return if $pl->{deny_save};
1068		1577
1069	aio_mkdir playerdir $pl, 0770;	1578	aio_mkdir playerdir $pl, 0770;
1070	$pl->{last_save} = $cf::RUNTIME;	1579	$pl->{last_save} = $cf::RUNTIME;
1071		1580
		1581	cf::get_slot 0.01;
		1582
		1583	# save slots, to be restored later
		1584	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1585
1072	$pl->save_pl ($path);	1586	$pl->save_pl ($path);
1073	Coro::cede;	1587	cf::cede_to_tick;
1074	}	1588	}
1075		1589
1076	sub new($) {	1590	sub new($) {
1077	my ($login) = @_;	1591	my ($login) = @_;
1078		1592
…		…
1084	$cf::PLAYER{$login} = $self;	1598	$cf::PLAYER{$login} = $self;
1085		1599
1086	$self	1600	$self
1087	}	1601	}
1088		1602
		1603	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1604
		1605	=cut
		1606
		1607	sub send_msg {
		1608	my $ns = shift->ns
		1609	or return;
		1610	$ns->send_msg (@_);
		1611	}
		1612
1089	=item $pl->quit_character	1613	=item $pl->quit_character
1090		1614
1091	Nukes the player without looking back. If logged in, the connection will	1615	Nukes the player without looking back. If logged in, the connection will
1092	be destroyed. May block for a long time.	1616	be destroyed. May block for a long time.
1093		1617
…		…
1097	my ($pl) = @_;	1621	my ($pl) = @_;
1098		1622
1099	my $name = $pl->ob->name;	1623	my $name = $pl->ob->name;
1100		1624
1101	$pl->{deny_save} = 1;	1625	$pl->{deny_save} = 1;
1102	$pl->password ("*"); # this should lock out the player until we nuked the dir	1626	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1103		1627
1104	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1628	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1105	$pl->deactivate;	1629	$pl->deactivate;
		1630	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1631	$pl->ob->check_score;
1106	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1632	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1107	$pl->ns->destroy if $pl->ns;	1633	$pl->ns->destroy if $pl->ns;
1108		1634
1109	my $path = playerdir $pl;	1635	my $path = playerdir $pl;
1110	my $temp = "$path~$cf::RUNTIME~deleting~";	1636	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1146	or return [];	1672	or return [];
1147		1673
1148	my @logins;	1674	my @logins;
1149		1675
1150	for my $login (@$dirs) {	1676	for my $login (@$dirs) {
		1677	my $path = path $login;
		1678
		1679	# a .pst is a dead give-away for a valid player
		1680	# if no pst file found, open and chekc for blocked users
		1681	if (aio_stat "$path.pst") {
1151	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1682	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1152	aio_read $fh, 0, 512, my $buf, 0 or next;	1683	aio_read $fh, 0, 512, my $buf, 0 or next;
1153	$buf !~ /^password -------------$/m or next; # official not-valid tag	1684	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1685	}
1154		1686
1155	utf8::decode $login;	1687	utf8::decode $login;
1156	push @logins, $login;	1688	push @logins, $login;
1157	}	1689	}
1158		1690
…		…
1185	}	1717	}
1186		1718
1187	\@paths	1719	\@paths
1188	}	1720	}
1189		1721
		1722	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1723
		1724	Expand deliantra pod fragments into protocol xml.
		1725
1190	=item $player->ext_reply ($msgid, %msg)	1726	=item $player->ext_reply ($msgid, @msg)
1191		1727
1192	Sends an ext reply to the player.	1728	Sends an ext reply to the player.
1193		1729
1194	=cut	1730	=cut
1195		1731
1196	sub ext_reply($$%) {	1732	sub ext_reply($$@) {
1197	my ($self, $id, %msg) = @_;	1733	my ($self, $id, @msg) = @_;
1198		1734
1199	$msg{msgid} = $id;	1735	$self->ns->ext_reply ($id, @msg)
1200
1201	$self->send ("ext " . cf::to_json \%msg);
1202	}	1736	}
1203		1737
1204	=item $player->ext_event ($type, %msg)	1738	=item $player->ext_msg ($type, @msg)
1205		1739
1206	Sends an ext event to the client.	1740	Sends an ext event to the client.
1207		1741
1208	=cut	1742	=cut
1209		1743
1210	sub ext_event($$%) {	1744	sub ext_msg($$@) {
1211	my ($self, $type, %msg) = @_;	1745	my ($self, $type, @msg) = @_;
1212		1746
1213	$self->ns->ext_event ($type, %msg);	1747	$self->ns->ext_msg ($type, @msg);
1214	}	1748	}
1215		1749
1216	=head3 cf::region	1750	=head3 cf::region
1217		1751
1218	=over 4	1752	=over 4
…		…
1221		1755
1222	package cf::region;	1756	package cf::region;
1223		1757
1224	=item cf::region::find_by_path $path	1758	=item cf::region::find_by_path $path
1225		1759
1226	Tries to decuce the probable region for a map knowing only its path.	1760	Tries to decuce the likely region for a map knowing only its path.
1227		1761
1228	=cut	1762	=cut
1229		1763
1230	sub find_by_path($) {	1764	sub find_by_path($) {
1231	my ($path) = @_;	1765	my ($path) = @_;
1232		1766
1233	my ($match, $specificity);	1767	my ($match, $specificity);
1234		1768
1235	for my $region (list) {	1769	for my $region (list) {
1236	if ($region->match && $path =~ $region->match) {	1770	if ($region->{match} && $path =~ $region->{match}) {
1237	($match, $specificity) = ($region, $region->specificity)	1771	($match, $specificity) = ($region, $region->specificity)
1238	if $region->specificity > $specificity;	1772	if $region->specificity > $specificity;
1239	}	1773	}
1240	}	1774	}
1241		1775
…		…
1262	our $MAX_RESET = 3600;	1796	our $MAX_RESET = 3600;
1263	our $DEFAULT_RESET = 3000;	1797	our $DEFAULT_RESET = 3000;
1264		1798
1265	sub generate_random_map {	1799	sub generate_random_map {
1266	my ($self, $rmp) = @_;	1800	my ($self, $rmp) = @_;
		1801
		1802	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1803
1267	# mit "rum" bekleckern, nicht	1804	# mit "rum" bekleckern, nicht
1268	$self->_create_random_map (	1805	$self->_create_random_map (
1269	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1806	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1270	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1807	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1271	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1808	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1272	$rmp->{exit_on_final_map},	1809	$rmp->{exit_on_final_map},
1273	$rmp->{xsize}, $rmp->{ysize},	1810	$rmp->{xsize}, $rmp->{ysize},
1274	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1811	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1275	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1812	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1305	my ($self, $merge) = @_;	1842	my ($self, $merge) = @_;
1306		1843
1307	# we have to keep some variables in memory intact	1844	# we have to keep some variables in memory intact
1308	local $self->{path};	1845	local $self->{path};
1309	local $self->{load_path};	1846	local $self->{load_path};
1310	local $self->{deny_save};
1311	local $self->{deny_reset};
1312		1847
1313	$self->SUPER::thawer_merge ($merge);	1848	$self->SUPER::thawer_merge ($merge);
1314	}	1849	}
1315		1850
1316	sub normalise {	1851	sub normalise {
…		…
1363	$self->init; # pass $1 etc.	1898	$self->init; # pass $1 etc.
1364	return $self;	1899	return $self;
1365	}	1900	}
1366	}	1901	}
1367		1902
1368	Carp::carp "unable to resolve path '$path' (base '$base').";	1903	Carp::cluck "unable to resolve path '$path' (base '$base').";
1369	()	1904	()
1370	}	1905	}
1371		1906
1372	sub init {	1907	sub init {
1373	my ($self) = @_;	1908	my ($self) = @_;
…		…
1395		1930
1396	# the temporary/swap location	1931	# the temporary/swap location
1397	sub save_path {	1932	sub save_path {
1398	my ($self) = @_;	1933	my ($self) = @_;
1399		1934
1400	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1935	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1401	"$TMPDIR/$path.map"	1936	"$TMPDIR/$path.map"
1402	}	1937	}
1403		1938
1404	# the unique path, undef == no special unique path	1939	# the unique path, undef == no special unique path
1405	sub uniq_path {	1940	sub uniq_path {
1406	my ($self) = @_;	1941	my ($self) = @_;
1407		1942
1408	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1943	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1409	"$UNIQUEDIR/$path"	1944	"$UNIQUEDIR/$path"
1410	}	1945	}
1411		1946
1412	# and all this just because we cannot iterate over	1947	sub decay_objects {
1413	# all maps in C++...
1414	sub change_all_map_light {
1415	my ($change) = @_;	1948	my ($self) = @_;
1416		1949
1417	$_->change_map_light ($change)	1950	return if $self->{deny_reset};
1418	for grep $_->outdoor, values %cf::MAP;	1951
		1952	$self->do_decay_objects;
1419	}	1953	}
1420		1954
1421	sub unlink_save {	1955	sub unlink_save {
1422	my ($self) = @_;	1956	my ($self) = @_;
1423		1957
…		…
1428		1962
1429	sub load_header_from($) {	1963	sub load_header_from($) {
1430	my ($self, $path) = @_;	1964	my ($self, $path) = @_;
1431		1965
1432	utf8::encode $path;	1966	utf8::encode $path;
1433	#aio_open $path, O_RDONLY, 0	1967	my $f = new_from_file cf::object::thawer $path
1434	# or return;
1435
1436	$self->_load_header ($path)
1437	or return;	1968	or return;
		1969
		1970	$self->_load_header ($f)
		1971	or return;
		1972
		1973	local $MAP_LOADING{$self->{path}} = $self;
		1974	$f->resolve_delayed_derefs;
1438		1975
1439	$self->{load_path} = $path;	1976	$self->{load_path} = $path;
1440		1977
1441	1	1978	1
1442	}	1979	}
…		…
1481	$self->load_header_orig	2018	$self->load_header_orig
1482	or return;	2019	or return;
1483	$self->prepare_orig;	2020	$self->prepare_orig;
1484	}	2021	}
1485		2022
		2023	$self->{deny_reset} = 1
		2024	if $self->no_reset;
		2025
1486	$self->default_region (cf::region::find_by_path $self->{path})	2026	$self->default_region (cf::region::find_by_path $self->{path})
1487	unless $self->default_region;	2027	unless $self->default_region;
1488		2028
1489	1	2029	1
1490	}	2030	}
…		…
1493	sub find {	2033	sub find {
1494	my ($path, $origin) = @_;	2034	my ($path, $origin) = @_;
1495		2035
1496	$path = normalise $path, $origin && $origin->path;	2036	$path = normalise $path, $origin && $origin->path;
1497		2037
		2038	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1498	cf::lock_wait "map_find:$path";	2039	my $guard2 = cf::lock_acquire "map_find:$path";
1499		2040
1500	$cf::MAP{$path} || do {	2041	$cf::MAP{$path} || do {
1501	my $guard = cf::lock_acquire "map_find:$path";
1502	my $map = new_from_path cf::map $path	2042	my $map = new_from_path cf::map $path
1503	or return;	2043	or return;
1504		2044
1505	$map->{last_save} = $cf::RUNTIME;	2045	$map->{last_save} = $cf::RUNTIME;
1506		2046
1507	$map->load_header	2047	$map->load_header
1508	or return;	2048	or return;
1509		2049
1510	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2050	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1511	# doing this can freeze the server in a sync job, obviously	2051	# doing this can freeze the server in a sync job, obviously
1512	#$cf::WAIT_FOR_TICK->wait;	2052	#$cf::WAIT_FOR_TICK->wait;
		2053	undef $guard2;
		2054	undef $guard1;
1513	$map->reset;	2055	$map->reset;
1514	undef $guard;
1515	return find $path;	2056	return find $path;
1516	}	2057	}
1517		2058
1518	$cf::MAP{$path} = $map	2059	$cf::MAP{$path} = $map
1519	}	2060	}
1520	}	2061	}
1521		2062
1522	sub pre_load { }	2063	sub pre_load { }
1523	sub post_load { }	2064	#sub post_load { } # XS
1524		2065
1525	sub load {	2066	sub load {
1526	my ($self) = @_;	2067	my ($self) = @_;
1527		2068
1528	local $self->{deny_reset} = 1; # loading can take a long time	2069	local $self->{deny_reset} = 1; # loading can take a long time
1529		2070
1530	my $path = $self->{path};	2071	my $path = $self->{path};
1531		2072
1532	{	2073	{
1533	my $guard = cf::lock_acquire "map_load:$path";	2074	my $guard = cf::lock_acquire "map_data:$path";
1534		2075
		2076	return unless $self->valid;
1535	return if $self->in_memory != cf::MAP_SWAPPED;	2077	return unless $self->in_memory == cf::MAP_SWAPPED;
1536		2078
1537	$self->in_memory (cf::MAP_LOADING);	2079	$self->in_memory (cf::MAP_LOADING);
1538		2080
1539	$self->alloc;	2081	$self->alloc;
1540		2082
1541	$self->pre_load;	2083	$self->pre_load;
1542	Coro::cede;	2084	cf::cede_to_tick;
1543		2085
		2086	my $f = new_from_file cf::object::thawer $self->{load_path};
		2087	$f->skip_block;
1544	$self->_load_objects ($self->{load_path}, 1)	2088	$self->_load_objects ($f)
1545	or return;	2089	or return;
1546		2090
1547	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2091	$self->post_load_original
1548	if delete $self->{load_original};	2092	if delete $self->{load_original};
1549		2093
1550	if (my $uniq = $self->uniq_path) {	2094	if (my $uniq = $self->uniq_path) {
1551	utf8::encode $uniq;	2095	utf8::encode $uniq;
1552	if (aio_open $uniq, O_RDONLY, 0) {	2096	unless (aio_stat $uniq) {
		2097	if (my $f = new_from_file cf::object::thawer $uniq) {
1553	$self->clear_unique_items;	2098	$self->clear_unique_items;
1554	$self->_load_objects ($uniq, 0);	2099	$self->_load_objects ($f);
		2100	$f->resolve_delayed_derefs;
		2101	}
1555	}	2102	}
1556	}	2103	}
1557		2104
1558	Coro::cede;	2105	$f->resolve_delayed_derefs;
		2106
		2107	cf::cede_to_tick;
1559	# now do the right thing for maps	2108	# now do the right thing for maps
1560	$self->link_multipart_objects;	2109	$self->link_multipart_objects;
1561	$self->difficulty ($self->estimate_difficulty)	2110	$self->difficulty ($self->estimate_difficulty)
1562	unless $self->difficulty;	2111	unless $self->difficulty;
1563	Coro::cede;	2112	cf::cede_to_tick;
1564		2113
1565	unless ($self->{deny_activate}) {	2114	unless ($self->{deny_activate}) {
1566	$self->decay_objects;	2115	$self->decay_objects;
1567	$self->fix_auto_apply;	2116	$self->fix_auto_apply;
1568	$self->update_buttons;	2117	$self->update_buttons;
1569	Coro::cede;	2118	cf::cede_to_tick;
1570	$self->set_darkness_map;
1571	Coro::cede;
1572	$self->activate;	2119	$self->activate;
1573	}	2120	}
1574		2121
		2122	$self->{last_save} = $cf::RUNTIME;
		2123	$self->last_access ($cf::RUNTIME);
		2124
1575	$self->in_memory (cf::MAP_IN_MEMORY);	2125	$self->in_memory (cf::MAP_ACTIVE);
1576	}	2126	}
1577		2127
1578	$self->post_load;	2128	$self->post_load;
1579	}	2129	}
1580		2130
		2131	# customize the map for a given player, i.e.
		2132	# return the _real_ map. used by e.g. per-player
		2133	# maps to change the path to ~playername/mappath
1581	sub customise_for {	2134	sub customise_for {
1582	my ($self, $ob) = @_;	2135	my ($self, $ob) = @_;
1583		2136
1584	return find "~" . $ob->name . "/" . $self->{path}	2137	return find "~" . $ob->name . "/" . $self->{path}
1585	if $self->per_player;	2138	if $self->per_player;
1586		2139
		2140	# return find "?party/" . $ob->name . "/" . $self->{path}
		2141	# if $self->per_party;
		2142
1587	$self	2143	$self
1588	}	2144	}
1589		2145
1590	# find and load all maps in the 3x3 area around a map	2146	# find and load all maps in the 3x3 area around a map
1591	sub load_diag {	2147	sub load_neighbours {
1592	my ($map) = @_;	2148	my ($map) = @_;
1593		2149
1594	my @diag; # diagonal neighbours	2150	my @neigh; # diagonal neighbours
1595		2151
1596	for (0 .. 3) {	2152	for (0 .. 3) {
1597	my $neigh = $map->tile_path ($_)	2153	my $neigh = $map->tile_path ($_)
1598	or next;	2154	or next;
1599	$neigh = find $neigh, $map	2155	$neigh = find $neigh, $map
1600	or next;	2156	or next;
1601	$neigh->load;	2157	$neigh->load;
1602		2158
		2159	push @neigh,
1603	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2160	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1604	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2161	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1605	}	2162	}
1606		2163
1607	for (@diag) {	2164	for (grep defined $_->[0], @neigh) {
		2165	my ($path, $origin) = @$_;
1608	my $neigh = find @$_	2166	my $neigh = find $path, $origin
1609	or next;	2167	or next;
1610	$neigh->load;	2168	$neigh->load;
1611	}	2169	}
1612	}	2170	}
1613		2171
…		…
1618	}	2176	}
1619		2177
1620	sub do_load_sync {	2178	sub do_load_sync {
1621	my ($map) = @_;	2179	my ($map) = @_;
1622		2180
		2181	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2182	if $Coro::current == $Coro::main;
		2183
1623	cf::sync_job { $map->load };	2184	cf::sync_job { $map->load };
1624	}	2185	}
1625		2186
1626	our %MAP_PREFETCH;	2187	our %MAP_PREFETCH;
1627	our $MAP_PREFETCHER = undef;	2188	our $MAP_PREFETCHER = undef;
1628		2189
1629	sub find_async {	2190	sub find_async {
1630	my ($path, $origin) = @_;	2191	my ($path, $origin, $load) = @_;
1631		2192
1632	$path = normalise $path, $origin && $origin->{path};	2193	$path = normalise $path, $origin && $origin->{path};
1633		2194
1634	if (my $map = $cf::MAP{$path}) {	2195	if (my $map = $cf::MAP{$path}) {
1635	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2196	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1636	}	2197	}
1637		2198
1638	undef $MAP_PREFETCH{$path};	2199	$MAP_PREFETCH{$path} |= $load;
		2200
1639	$MAP_PREFETCHER ||= cf::async {	2201	$MAP_PREFETCHER ||= cf::async {
		2202	$Coro::current->{desc} = "map prefetcher";
		2203
1640	while (%MAP_PREFETCH) {	2204	while (%MAP_PREFETCH) {
1641	for my $path (keys %MAP_PREFETCH) {	2205	while (my ($k, $v) = each %MAP_PREFETCH) {
1642	my $map = find $path	2206	if (my $map = find $k) {
1643	or next;
1644	$map->load;	2207	$map->load if $v;
		2208	}
1645		2209
1646	delete $MAP_PREFETCH{$path};	2210	delete $MAP_PREFETCH{$k};
1647	}	2211	}
1648	}	2212	}
1649	undef $MAP_PREFETCHER;	2213	undef $MAP_PREFETCHER;
1650	};	2214	};
1651	$MAP_PREFETCHER->prio (6);	2215	$MAP_PREFETCHER->prio (6);
1652		2216
1653	()	2217	()
1654	}	2218	}
1655		2219
		2220	# common code, used by both ->save and ->swapout
1656	sub save {	2221	sub _save {
1657	my ($self) = @_;	2222	my ($self) = @_;
1658
1659	my $lock = cf::lock_acquire "map_data:" . $self->path;
1660		2223
1661	$self->{last_save} = $cf::RUNTIME;	2224	$self->{last_save} = $cf::RUNTIME;
1662		2225
1663	return unless $self->dirty;	2226	return unless $self->dirty;
1664		2227
…		…
1670	return if $self->{deny_save};	2233	return if $self->{deny_save};
1671		2234
1672	local $self->{last_access} = $self->last_access;#d#	2235	local $self->{last_access} = $self->last_access;#d#
1673		2236
1674	cf::async {	2237	cf::async {
		2238	$Coro::current->{desc} = "map player save";
1675	$_->contr->save for $self->players;	2239	$_->contr->save for $self->players;
1676	};	2240	};
		2241
		2242	cf::get_slot 0.02;
1677		2243
1678	if ($uniq) {	2244	if ($uniq) {
1679	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2245	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1680	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2246	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1681	} else {	2247	} else {
1682	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2248	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1683	}	2249	}
1684	}	2250	}
1685		2251
		2252	sub save {
		2253	my ($self) = @_;
		2254
		2255	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2256
		2257	$self->_save;
		2258	}
		2259
1686	sub swap_out {	2260	sub swap_out {
1687	my ($self) = @_;	2261	my ($self) = @_;
1688		2262
1689	# save first because save cedes
1690	$self->save;
1691
1692	my $lock = cf::lock_acquire "map_data:" . $self->path;	2263	my $lock = cf::lock_acquire "map_data:$self->{path}";
1693		2264
		2265	return if $self->in_memory != cf::MAP_ACTIVE;
		2266	return if $self->{deny_save};
1694	return if $self->players;	2267	return if $self->players;
1695	return if $self->in_memory != cf::MAP_IN_MEMORY;
1696	return if $self->{deny_save};
1697		2268
		2269	# first deactivate the map and "unlink" it from the core
		2270	$self->deactivate;
		2271	$_->clear_links_to ($self) for values %cf::MAP;
		2272	$self->in_memory (cf::MAP_SWAPPED);
		2273
		2274	# then atomically save
		2275	$self->_save;
		2276
		2277	# then free the map
1698	$self->clear;	2278	$self->clear;
1699	$self->in_memory (cf::MAP_SWAPPED);
1700	}	2279	}
1701		2280
1702	sub reset_at {	2281	sub reset_at {
1703	my ($self) = @_;	2282	my ($self) = @_;
1704		2283
1705	# TODO: safety, remove and allow resettable per-player maps	2284	# 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};	2285	return 1e99 if $self->{deny_reset};
1708		2286
1709	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2287	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1710	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2288	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1711		2289
…		…
1722	my ($self) = @_;	2300	my ($self) = @_;
1723		2301
1724	my $lock = cf::lock_acquire "map_data:$self->{path}";	2302	my $lock = cf::lock_acquire "map_data:$self->{path}";
1725		2303
1726	return if $self->players;	2304	return if $self->players;
1727	return if $self->isa ("ext::map_per_player");#d#
1728		2305
1729	warn "resetting map ", $self->path;	2306	warn "resetting map ", $self->path, "\n";
1730		2307
1731	$self->in_memory (cf::MAP_SWAPPED);	2308	$self->in_memory (cf::MAP_SWAPPED);
1732		2309
1733	# need to save uniques path	2310	# need to save uniques path
1734	unless ($self->{deny_save}) {	2311	unless ($self->{deny_save}) {
…		…
1738	if $uniq;	2315	if $uniq;
1739	}	2316	}
1740		2317
1741	delete $cf::MAP{$self->path};	2318	delete $cf::MAP{$self->path};
1742		2319
		2320	$self->deactivate;
		2321	$_->clear_links_to ($self) for values %cf::MAP;
1743	$self->clear;	2322	$self->clear;
1744
1745	$_->clear_links_to ($self) for values %cf::MAP;
1746		2323
1747	$self->unlink_save;	2324	$self->unlink_save;
1748	$self->destroy;	2325	$self->destroy;
1749	}	2326	}
1750		2327
1751	my $nuke_counter = "aaaa";	2328	my $nuke_counter = "aaaa";
1752		2329
1753	sub nuke {	2330	sub nuke {
1754	my ($self) = @_;	2331	my ($self) = @_;
1755		2332
		2333	{
		2334	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2335
1756	delete $cf::MAP{$self->path};	2336	delete $cf::MAP{$self->path};
1757		2337
1758	$self->unlink_save;	2338	$self->unlink_save;
1759		2339
1760	bless $self, "cf::map";	2340	bless $self, "cf::map";
1761	delete $self->{deny_reset};	2341	delete $self->{deny_reset};
1762	$self->{deny_save} = 1;	2342	$self->{deny_save} = 1;
1763	$self->reset_timeout (1);	2343	$self->reset_timeout (1);
1764	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2344	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1765		2345
1766	$cf::MAP{$self->path} = $self;	2346	$cf::MAP{$self->path} = $self;
		2347	}
1767		2348
1768	$self->reset; # polite request, might not happen	2349	$self->reset; # polite request, might not happen
		2350	}
		2351
		2352	=item $maps = cf::map::tmp_maps
		2353
		2354	Returns an arrayref with all map paths of currently instantiated and saved
		2355	maps. May block.
		2356
		2357	=cut
		2358
		2359	sub tmp_maps() {
		2360	[
		2361	map {
		2362	utf8::decode $_;
		2363	/\.map$/
		2364	? normalise $_
		2365	: ()
		2366	} @{ aio_readdir $TMPDIR or [] }
		2367	]
		2368	}
		2369
		2370	=item $maps = cf::map::random_maps
		2371
		2372	Returns an arrayref with all map paths of currently instantiated and saved
		2373	random maps. May block.
		2374
		2375	=cut
		2376
		2377	sub random_maps() {
		2378	[
		2379	map {
		2380	utf8::decode $_;
		2381	/\.map$/
		2382	? normalise "?random/$_"
		2383	: ()
		2384	} @{ aio_readdir $RANDOMDIR or [] }
		2385	]
1769	}	2386	}
1770		2387
1771	=item cf::map::unique_maps	2388	=item cf::map::unique_maps
1772		2389
1773	Returns an arrayref of paths of all shared maps that have	2390	Returns an arrayref of paths of all shared maps that have
1774	instantiated unique items. May block.	2391	instantiated unique items. May block.
1775		2392
1776	=cut	2393	=cut
1777		2394
1778	sub unique_maps() {	2395	sub unique_maps() {
1779	my $files = aio_readdir $UNIQUEDIR	2396	[
1780	or return;	2397	map {
1781
1782	my @paths;
1783
1784	for (@$files) {
1785	utf8::decode $_;	2398	utf8::decode $_;
1786	next if /\.pst$/;	2399	s/\.map$//; # TODO future compatibility hack
1787	next unless /^$PATH_SEP/o;	2400	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1788		2401	? ()
1789	push @paths, cf::map::normalise $_;	2402	: normalise $_
		2403	} @{ aio_readdir $UNIQUEDIR or [] }
1790	}	2404	]
1791
1792	\@paths
1793	}	2405	}
1794		2406
1795	package cf;	2407	=item cf::map::static_maps
		2408
		2409	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2410	file in the shared directory excluding F</styles> and F</editor>). May
		2411	block.
		2412
		2413	=cut
		2414
		2415	sub static_maps() {
		2416	my @dirs = "";
		2417	my @maps;
		2418
		2419	while (@dirs) {
		2420	my $dir = shift @dirs;
		2421
		2422	next if $dir eq "/styles" || $dir eq "/editor";
		2423
		2424	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2425	or return;
		2426
		2427	for (@$files) {
		2428	s/\.map$// or next;
		2429	utf8::decode $_;
		2430	push @maps, "$dir/$_";
		2431	}
		2432
		2433	push @dirs, map "$dir/$_", @$dirs;
		2434	}
		2435
		2436	\@maps
		2437	}
1796		2438
1797	=back	2439	=back
1798		2440
1799	=head3 cf::object	2441	=head3 cf::object
1800		2442
…		…
1804		2446
1805	=over 4	2447	=over 4
1806		2448
1807	=item $ob->inv_recursive	2449	=item $ob->inv_recursive
1808		2450
1809	Returns the inventory of the object _and_ their inventories, recursively.	2451	Returns the inventory of the object I<and> their inventories, recursively,
		2452	but I<not> the object itself.
1810		2453
1811	=cut	2454	=cut
1812		2455
1813	sub inv_recursive_;	2456	sub inv_recursive_;
1814	sub inv_recursive_ {	2457	sub inv_recursive_ {
…		…
1817		2460
1818	sub inv_recursive {	2461	sub inv_recursive {
1819	inv_recursive_ inv $_[0]	2462	inv_recursive_ inv $_[0]
1820	}	2463	}
1821		2464
		2465	=item $ref = $ob->ref
		2466
		2467	Creates and returns a persistent reference to an object that can be stored as a string.
		2468
		2469	=item $ob = cf::object::deref ($refstring)
		2470
		2471	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2472	even if the object actually exists. May block.
		2473
		2474	=cut
		2475
		2476	sub deref {
		2477	my ($ref) = @_;
		2478
		2479	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2480	my ($uuid, $name) = ($1, $2);
		2481	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2482	or return;
		2483	$pl->ob->uuid eq $uuid
		2484	or return;
		2485
		2486	$pl->ob
		2487	} else {
		2488	warn "$ref: cannot resolve object reference\n";
		2489	undef
		2490	}
		2491	}
		2492
1822	package cf;	2493	package cf;
1823		2494
1824	=back	2495	=back
1825		2496
1826	=head3 cf::object::player	2497	=head3 cf::object::player
…		…
1832	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2503	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	2504	can be C<undef>. Does the right thing when the player is currently in a
1834	dialogue with the given NPC character.	2505	dialogue with the given NPC character.
1835		2506
1836	=cut	2507	=cut
		2508
		2509	our $SAY_CHANNEL = {
		2510	id => "say",
		2511	title => "Map",
		2512	reply => "say ",
		2513	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2514	};
		2515
		2516	our $CHAT_CHANNEL = {
		2517	id => "chat",
		2518	title => "Chat",
		2519	reply => "chat ",
		2520	tooltip => "Player chat and shouts, global to the server.",
		2521	};
1837		2522
1838	# rough implementation of a future "reply" method that works	2523	# rough implementation of a future "reply" method that works
1839	# with dialog boxes.	2524	# with dialog boxes.
1840	#TODO: the first argument must go, split into a $npc->reply_to ( method	2525	#TODO: the first argument must go, split into a $npc->reply_to ( method
1841	sub cf::object::player::reply($$$;$) {	2526	sub cf::object::player::reply($$$;$) {
…		…
1843		2528
1844	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2529	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1845		2530
1846	if ($self->{record_replies}) {	2531	if ($self->{record_replies}) {
1847	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2532	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2533
1848	} else {	2534	} else {
		2535	my $pl = $self->contr;
		2536
		2537	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2538	my $dialog = $pl->{npc_dialog};
		2539	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2540
		2541	} else {
1849	$msg = $npc->name . " says: $msg" if $npc;	2542	$msg = $npc->name . " says: $msg" if $npc;
1850	$self->message ($msg, $flags);	2543	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2544	}
1851	}	2545	}
		2546	}
		2547
		2548	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2549
		2550	=cut
		2551
		2552	sub cf::object::send_msg {
		2553	my $pl = shift->contr
		2554	or return;
		2555	$pl->send_msg (@_);
1852	}	2556	}
1853		2557
1854	=item $player_object->may ("access")	2558	=item $player_object->may ("access")
1855		2559
1856	Returns wether the given player is authorized to access resource "access"	2560	Returns wether the given player is authorized to access resource "access"
…		…
1869		2573
1870	=item $player_object->enter_link	2574	=item $player_object->enter_link
1871		2575
1872	Freezes the player and moves him/her to a special map (C<{link}>).	2576	Freezes the player and moves him/her to a special map (C<{link}>).
1873		2577
1874	The player should be reasonably safe there for short amounts of time. You	2578	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.	2579	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2580	though, as the palyer cannot control the character while it is on the link
		2581	map.
1876		2582
1877	Will never block.	2583	Will never block.
1878		2584
1879	=item $player_object->leave_link ($map, $x, $y)	2585	=item $player_object->leave_link ($map, $x, $y)
1880		2586
…		…
1905	return if UNIVERSAL::isa $self->map, "ext::map_link";	2611	return if UNIVERSAL::isa $self->map, "ext::map_link";
1906		2612
1907	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2613	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1908	if $self->map && $self->map->{path} ne "{link}";	2614	if $self->map && $self->map->{path} ne "{link}";
1909		2615
1910	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2616	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1911	}	2617	}
1912		2618
1913	sub cf::object::player::leave_link {	2619	sub cf::object::player::leave_link {
1914	my ($self, $map, $x, $y) = @_;	2620	my ($self, $map, $x, $y) = @_;
1915		2621
…		…
1932	($x, $y) = (-1, -1)	2638	($x, $y) = (-1, -1)
1933	unless (defined $x) && (defined $y);	2639	unless (defined $x) && (defined $y);
1934		2640
1935	# use -1 or undef as default coordinates, not 0, 0	2641	# use -1 or undef as default coordinates, not 0, 0
1936	($x, $y) = ($map->enter_x, $map->enter_y)	2642	($x, $y) = ($map->enter_x, $map->enter_y)
1937	if $x <=0 && $y <= 0;	2643	if $x <= 0 && $y <= 0;
1938		2644
1939	$map->load;	2645	$map->load;
1940	$map->load_diag;	2646	$map->load_neighbours;
1941		2647
1942	return unless $self->contr->active;	2648	return unless $self->contr->active;
1943	$self->activate_recursive;
1944		2649
1945	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2650	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1946	$self->enter_map ($map, $x, $y);	2651	$self->enter_map ($map, $x, $y);
1947	}
1948		2652
		2653	# only activate afterwards, to support waiting in hooks
		2654	$self->activate_recursive;
		2655	}
		2656
1949	=item $player_object->goto ($path, $x, $y[, $check->($map)])	2657	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1950		2658
1951	Moves the player to the given map-path and coordinates by first freezing	2659	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	2660	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	2661	that has to return the map if sucecssful, and then unfreezes the player on
1954	the new (success) or old (failed) map position.	2662	the new (success) or old (failed) map position. In either case, $done will
		2663	be called at the end of this process.
		2664
		2665	Note that $check will be called with a potentially non-loaded map, so if
		2666	it needs a loaded map it has to call C<< ->load >>.
1955		2667
1956	=cut	2668	=cut
1957		2669
1958	our $GOTOGEN;	2670	our $GOTOGEN;
1959		2671
1960	sub cf::object::player::goto {	2672	sub cf::object::player::goto {
1961	my ($self, $path, $x, $y, $check) = @_;	2673	my ($self, $path, $x, $y, $check, $done) = @_;
1962		2674
1963	# do generation counting so two concurrent goto's will be executed in-order	2675	# do generation counting so two concurrent goto's will be executed in-order
1964	my $gen = $self->{_goto_generation} = ++$GOTOGEN;	2676	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1965		2677
1966	$self->enter_link;	2678	$self->enter_link;
1967		2679
1968	(async {	2680	(async {
		2681	$Coro::current->{desc} = "player::goto $path $x $y";
		2682
		2683	# *tag paths override both path and x|y
		2684	if ($path =~ /^\*(.*)$/) {
		2685	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2686	my $ob = $obs[rand @obs];
		2687
		2688	# see if we actually can go there
		2689	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2690	$ob = $obs[rand @obs];
		2691	} else {
		2692	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2693	}
		2694	# else put us there anyways for now #d#
		2695
		2696	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2697	} else {
		2698	($path, $x, $y) = (undef, undef, undef);
		2699	}
		2700	}
		2701
1969	my $map = eval {	2702	my $map = eval {
1970	my $map = cf::map::find $path;	2703	my $map = defined $path ? cf::map::find $path : undef;
1971		2704
1972	if ($map) {	2705	if ($map) {
1973	$map = $map->customise_for ($self);	2706	$map = $map->customise_for ($self);
1974	$map = $check->($map) if $check && $map;	2707	$map = $check->($map) if $check && $map;
1975	} else {	2708	} else {
1976	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2709	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
1977	}	2710	}
1978		2711
1979	$map	2712	$map
1980	};	2713	};
1981		2714
…		…
1986		2719
1987	if ($gen == $self->{_goto_generation}) {	2720	if ($gen == $self->{_goto_generation}) {
1988	delete $self->{_goto_generation};	2721	delete $self->{_goto_generation};
1989	$self->leave_link ($map, $x, $y);	2722	$self->leave_link ($map, $x, $y);
1990	}	2723	}
		2724
		2725	$done->() if $done;
1991	})->prio (1);	2726	})->prio (1);
1992	}	2727	}
1993		2728
1994	=item $player_object->enter_exit ($exit_object)	2729	=item $player_object->enter_exit ($exit_object)
1995		2730
…		…
2015	}	2750	}
2016		2751
2017	sub prepare_random_map {	2752	sub prepare_random_map {
2018	my ($exit) = @_;	2753	my ($exit) = @_;
2019		2754
2020	my $guard = cf::lock_acquire "exit_prepare:$exit";
2021
2022	# all this does is basically replace the /! path by	2755	# all this does is basically replace the /! path by
2023	# a new random map path (?random/...) with a seed	2756	# a new random map path (?random/...) with a seed
2024	# that depends on the exit object	2757	# that depends on the exit object
2025		2758
2026	my $rmp = parse_random_map_params $exit->msg;	2759	my $rmp = parse_random_map_params $exit->msg;
…		…
2028	if ($exit->map) {	2761	if ($exit->map) {
2029	$rmp->{region} = $exit->region->name;	2762	$rmp->{region} = $exit->region->name;
2030	$rmp->{origin_map} = $exit->map->path;	2763	$rmp->{origin_map} = $exit->map->path;
2031	$rmp->{origin_x} = $exit->x;	2764	$rmp->{origin_x} = $exit->x;
2032	$rmp->{origin_y} = $exit->y;	2765	$rmp->{origin_y} = $exit->y;
		2766
		2767	$exit->map->touch;
2033	}	2768	}
2034		2769
2035	$rmp->{random_seed} ||= $exit->random_seed;	2770	$rmp->{random_seed} ||= $exit->random_seed;
2036		2771
2037	my $data = cf::to_json $rmp;	2772	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2038	my $md5 = Digest::MD5::md5_hex $data;	2773	my $md5 = Digest::MD5::md5_hex $data;
2039	my $meta = "$RANDOMDIR/$md5.meta";	2774	my $meta = "$RANDOMDIR/$md5.meta";
2040		2775
2041	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2776	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2042	aio_write $fh, 0, (length $data), $data, 0;	2777	aio_write $fh, 0, (length $data), $data, 0;
2043	undef $fh;	2778	undef $fh;
2044	aio_rename "$meta~", $meta;	2779	aio_rename "$meta~", $meta;
2045		2780
		2781	my $slaying = "?random/$md5";
		2782
		2783	if ($exit->valid) {
2046	$exit->slaying ("?random/$md5");	2784	$exit->slaying ("?random/$md5");
2047	$exit->msg (undef);	2785	$exit->msg (undef);
		2786	}
2048	}	2787	}
2049	}	2788	}
2050		2789
2051	sub cf::object::player::enter_exit {	2790	sub cf::object::player::enter_exit {
2052	my ($self, $exit) = @_;	2791	my ($self, $exit) = @_;
2053		2792
2054	return unless $self->type == cf::PLAYER;	2793	return unless $self->type == cf::PLAYER;
2055		2794
2056	if ($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;	2795	$self->enter_link;
2068		2796
2069	(async {	2797	(async {
2070	$self->deactivate_recursive; # just to be sure	2798	$Coro::current->{desc} = "enter_exit";
		2799
2071	unless (eval {	2800	unless (eval {
		2801	$self->deactivate_recursive; # just to be sure
		2802
		2803	# random map handling
		2804	{
		2805	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2806
		2807	prepare_random_map $exit
		2808	if $exit->slaying eq "/!";
		2809	}
		2810
		2811	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2812	my $x = $exit->stats->hp;
		2813	my $y = $exit->stats->sp;
		2814
2072	$self->goto ($slaying, $hp, $sp);	2815	$self->goto ($map, $x, $y);
2073		2816
		2817	# if exit is damned, update players death & WoR home-position
		2818	$self->contr->savebed ($map, $x, $y)
		2819	if $exit->flag (cf::FLAG_DAMNED);
		2820
2074	1;	2821	1
2075	}) {	2822	}) {
2076	$self->message ("Something went wrong deep within the crossfire server. "	2823	$self->message ("Something went wrong deep within the deliantra server. "
2077	. "I'll try to bring you back to the map you were before. "	2824	. "I'll try to bring you back to the map you were before. "
2078	. "Please report this to the dungeon master!",	2825	. "Please report this to the dungeon master!",
2079	cf::NDI_UNIQUE | cf::NDI_RED);	2826	cf::NDI_UNIQUE | cf::NDI_RED);
2080		2827
2081	warn "ERROR in enter_exit: $@";	2828	warn "ERROR in enter_exit: $@";
…		…
2100		2847
2101	utf8::encode $text;	2848	utf8::encode $text;
2102	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2849	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2103	}	2850	}
2104		2851
		2852	=item $client->send_big_packet ($pkt)
		2853
		2854	Like C<send_packet>, but tries to compress large packets, and fragments
		2855	them as required.
		2856
		2857	=cut
		2858
		2859	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2860
		2861	sub cf::client::send_big_packet {
		2862	my ($self, $pkt) = @_;
		2863
		2864	# try lzf for large packets
		2865	$pkt = "lzf " . Compress::LZF::compress $pkt
		2866	if 1024 <= length $pkt and $self->{can_lzf};
		2867
		2868	# split very large packets
		2869	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2870	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2871	$pkt = "frag";
		2872	}
		2873
		2874	$self->send_packet ($pkt);
		2875	}
		2876
		2877	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2878
		2879	Send a drawinfo or msg packet to the client, formatting the msg for the
		2880	client if neccessary. C<$type> should be a string identifying the type of
		2881	the message, with C<log> being the default. If C<$color> is negative, suppress
		2882	the message unless the client supports the msg packet.
		2883
		2884	=cut
		2885
		2886	# non-persistent channels (usually the info channel)
		2887	our %CHANNEL = (
		2888	"c/motd" => {
		2889	id => "infobox",
		2890	title => "MOTD",
		2891	reply => undef,
		2892	tooltip => "The message of the day",
		2893	},
		2894	"c/identify" => {
		2895	id => "infobox",
		2896	title => "Identify",
		2897	reply => undef,
		2898	tooltip => "Items recently identified",
		2899	},
		2900	"c/examine" => {
		2901	id => "infobox",
		2902	title => "Examine",
		2903	reply => undef,
		2904	tooltip => "Signs and other items you examined",
		2905	},
		2906	"c/shopinfo" => {
		2907	id => "infobox",
		2908	title => "Shop Info",
		2909	reply => undef,
		2910	tooltip => "What your bargaining skill tells you about the shop",
		2911	},
		2912	"c/book" => {
		2913	id => "infobox",
		2914	title => "Book",
		2915	reply => undef,
		2916	tooltip => "The contents of a note or book",
		2917	},
		2918	"c/lookat" => {
		2919	id => "infobox",
		2920	title => "Look",
		2921	reply => undef,
		2922	tooltip => "What you saw there",
		2923	},
		2924	"c/who" => {
		2925	id => "infobox",
		2926	title => "Players",
		2927	reply => undef,
		2928	tooltip => "Shows players who are currently online",
		2929	},
		2930	"c/body" => {
		2931	id => "infobox",
		2932	title => "Body Parts",
		2933	reply => undef,
		2934	tooltip => "Shows which body parts you posess and are available",
		2935	},
		2936	"c/statistics" => {
		2937	id => "infobox",
		2938	title => "Statistics",
		2939	reply => undef,
		2940	tooltip => "Shows your primary statistics",
		2941	},
		2942	"c/skills" => {
		2943	id => "infobox",
		2944	title => "Skills",
		2945	reply => undef,
		2946	tooltip => "Shows your experience per skill and item power",
		2947	},
		2948	"c/shopitems" => {
		2949	id => "infobox",
		2950	title => "Shop Items",
		2951	reply => undef,
		2952	tooltip => "Shows the items currently for sale in this shop",
		2953	},
		2954	"c/resistances" => {
		2955	id => "infobox",
		2956	title => "Resistances",
		2957	reply => undef,
		2958	tooltip => "Shows your resistances",
		2959	},
		2960	"c/pets" => {
		2961	id => "infobox",
		2962	title => "Pets",
		2963	reply => undef,
		2964	tooltip => "Shows information abotu your pets/a specific pet",
		2965	},
		2966	"c/perceiveself" => {
		2967	id => "infobox",
		2968	title => "Perceive Self",
		2969	reply => undef,
		2970	tooltip => "You gained detailed knowledge about yourself",
		2971	},
		2972	"c/uptime" => {
		2973	id => "infobox",
		2974	title => "Uptime",
		2975	reply => undef,
		2976	tooltip => "How long the server has been running since last restart",
		2977	},
		2978	"c/mapinfo" => {
		2979	id => "infobox",
		2980	title => "Map Info",
		2981	reply => undef,
		2982	tooltip => "Information related to the maps",
		2983	},
		2984	"c/party" => {
		2985	id => "party",
		2986	title => "Party",
		2987	reply => "gsay ",
		2988	tooltip => "Messages and chat related to your party",
		2989	},
		2990	"c/death" => {
		2991	id => "death",
		2992	title => "Death",
		2993	reply => undef,
		2994	tooltip => "Reason for and more info about your most recent death",
		2995	},
		2996	"c/say" => $SAY_CHANNEL,
		2997	"c/chat" => $CHAT_CHANNEL,
		2998	);
		2999
		3000	sub cf::client::send_msg {
		3001	my ($self, $channel, $msg, $color, @extra) = @_;
		3002
		3003	$msg = $self->pl->expand_cfpod ($msg)
		3004	unless $color & cf::NDI_VERBATIM;
		3005
		3006	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3007
		3008	# check predefined channels, for the benefit of C
		3009	if ($CHANNEL{$channel}) {
		3010	$channel = $CHANNEL{$channel};
		3011
		3012	$self->ext_msg (channel_info => $channel);
		3013	$channel = $channel->{id};
		3014
		3015	} elsif (ref $channel) {
		3016	# send meta info to client, if not yet sent
		3017	unless (exists $self->{channel}{$channel->{id}}) {
		3018	$self->{channel}{$channel->{id}} = $channel;
		3019	$self->ext_msg (channel_info => $channel);
		3020	}
		3021
		3022	$channel = $channel->{id};
		3023	}
		3024
		3025	return unless @extra || length $msg;
		3026
		3027	# default colour, mask it out
		3028	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3029	if $color & cf::NDI_DEF;
		3030
		3031	my $pkt = "msg "
		3032	. $self->{json_coder}->encode (
		3033	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3034	);
		3035
		3036	$self->send_big_packet ($pkt);
		3037	}
		3038
2105	=item $client->ext_event ($type, %msg)	3039	=item $client->ext_msg ($type, @msg)
2106		3040
2107	Sends an exti event to the client.	3041	Sends an ext event to the client.
2108		3042
2109	=cut	3043	=cut
2110		3044
2111	sub cf::client::ext_event($$%) {	3045	sub cf::client::ext_msg($$@) {
2112	my ($self, $type, %msg) = @_;	3046	my ($self, $type, @msg) = @_;
2113		3047
		3048	if ($self->extcmd == 2) {
		3049	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3050	} elsif ($self->extcmd == 1) { # TODO: remove
2114	$msg{msgtype} = "event_$type";	3051	push @msg, msgtype => "event_$type";
2115	$self->send_packet ("ext " . cf::to_json \%msg);	3052	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3053	}
		3054	}
		3055
		3056	=item $client->ext_reply ($msgid, @msg)
		3057
		3058	Sends an ext reply to the client.
		3059
		3060	=cut
		3061
		3062	sub cf::client::ext_reply($$@) {
		3063	my ($self, $id, @msg) = @_;
		3064
		3065	if ($self->extcmd == 2) {
		3066	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3067	} elsif ($self->extcmd == 1) {
		3068	#TODO: version 1, remove
		3069	unshift @msg, msgtype => "reply", msgid => $id;
		3070	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3071	}
2116	}	3072	}
2117		3073
2118	=item $success = $client->query ($flags, "text", \&cb)	3074	=item $success = $client->query ($flags, "text", \&cb)
2119		3075
2120	Queues a query to the client, calling the given callback with	3076	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>,	3077	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>.	3078	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2123		3079
2124	Queries can fail, so check the return code. Or don't, as queries will become	3080	Queries can fail, so check the return code. Or don't, as queries will
2125	reliable at some point in the future.	3081	become reliable at some point in the future.
2126		3082
2127	=cut	3083	=cut
2128		3084
2129	sub cf::client::query {	3085	sub cf::client::query {
2130	my ($self, $flags, $text, $cb) = @_;	3086	my ($self, $flags, $text, $cb) = @_;
…		…
2138	utf8::encode $text;	3094	utf8::encode $text;
2139	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3095	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2140		3096
2141	$self->send_packet ($self->{query_queue}[0][0])	3097	$self->send_packet ($self->{query_queue}[0][0])
2142	if @{ $self->{query_queue} } == 1;	3098	if @{ $self->{query_queue} } == 1;
		3099
		3100	1
2143	}	3101	}
2144		3102
2145	cf::client->attach (	3103	cf::client->attach (
		3104	on_connect => sub {
		3105	my ($ns) = @_;
		3106
		3107	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3108	},
2146	on_reply => sub {	3109	on_reply => sub {
2147	my ($ns, $msg) = @_;	3110	my ($ns, $msg) = @_;
2148		3111
2149	# this weird shuffling is so that direct followup queries	3112	# this weird shuffling is so that direct followup queries
2150	# get handled first	3113	# get handled first
…		…
2162	} else {	3125	} else {
2163	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3126	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2164	}	3127	}
2165	}	3128	}
2166	},	3129	},
		3130	on_exticmd => sub {
		3131	my ($ns, $buf) = @_;
		3132
		3133	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3134
		3135	if (ref $msg) {
		3136	my ($type, $reply, @payload) =
		3137	"ARRAY" eq ref $msg
		3138	? @$msg
		3139	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3140
		3141	my @reply;
		3142
		3143	if (my $cb = $EXTICMD{$type}) {
		3144	@reply = $cb->($ns, @payload);
		3145	}
		3146
		3147	$ns->ext_reply ($reply, @reply)
		3148	if $reply;
		3149
		3150	} else {
		3151	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3152	}
		3153
		3154	cf::override;
		3155	},
2167	);	3156	);
2168		3157
2169	=item $client->async (\&cb)	3158	=item $client->async (\&cb)
2170		3159
2171	Create a new coroutine, running the specified callback. The coroutine will	3160	Create a new coroutine, running the specified callback. The coroutine will
…		…
2187		3176
2188	$coro	3177	$coro
2189	}	3178	}
2190		3179
2191	cf::client->attach (	3180	cf::client->attach (
2192	on_destroy => sub {	3181	on_client_destroy => sub {
2193	my ($ns) = @_;	3182	my ($ns) = @_;
2194		3183
2195	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3184	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2196	},	3185	},
2197	);	3186	);
…		…
2212	our $safe = new Safe "safe";	3201	our $safe = new Safe "safe";
2213	our $safe_hole = new Safe::Hole;	3202	our $safe_hole = new Safe::Hole;
2214		3203
2215	$SIG{FPE} = 'IGNORE';	3204	$SIG{FPE} = 'IGNORE';
2216		3205
2217	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3206	$safe->permit_only (Opcode::opset qw(
		3207	:base_core :base_mem :base_orig :base_math :base_loop
		3208	grepstart grepwhile mapstart mapwhile
		3209	sort time
		3210	));
2218		3211
2219	# here we export the classes and methods available to script code	3212	# here we export the classes and methods available to script code
2220		3213
2221	=pod	3214	=pod
2222		3215
2223	The following functions and methods are available within a safe environment:	3216	The following functions and methods are available within a safe environment:
2224		3217
2225	cf::object contr pay_amount pay_player map	3218	cf::object
		3219	contr pay_amount pay_player map x y force_find force_add destroy
		3220	insert remove name archname title slaying race decrease split
		3221	value
		3222
2226	cf::object::player player	3223	cf::object::player
2227	cf::player peaceful	3224	player
2228	cf::map trigger	3225
		3226	cf::player
		3227	peaceful
		3228
		3229	cf::map
		3230	trigger
2229		3231
2230	=cut	3232	=cut
2231		3233
2232	for (	3234	for (
2233	["cf::object" => qw(contr pay_amount pay_player map)],	3235	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3236	insert remove inv nrof name archname title slaying race
		3237	decrease split destroy change_exp value msg lore send_msg)],
2234	["cf::object::player" => qw(player)],	3238	["cf::object::player" => qw(player)],
2235	["cf::player" => qw(peaceful)],	3239	["cf::player" => qw(peaceful send_msg)],
2236	["cf::map" => qw(trigger)],	3240	["cf::map" => qw(trigger)],
2237	) {	3241	) {
2238	no strict 'refs';	3242	no strict 'refs';
2239	my ($pkg, @funs) = @$_;	3243	my ($pkg, @funs) = @$_;
2240	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3244	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2258		3262
2259	my $qcode = $code;	3263	my $qcode = $code;
2260	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3264	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2261	$qcode =~ s/\n/\\n/g;	3265	$qcode =~ s/\n/\\n/g;
2262		3266
		3267	%vars = (_dummy => 0) unless %vars;
		3268
		3269	my @res;
2263	local $_;	3270	local $_;
2264	local @safe::cf::_safe_eval_args = values %vars;
2265		3271
2266	my $eval =	3272	my $eval =
2267	"do {\n"	3273	"do {\n"
2268	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3274	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2269	. "#line 0 \"{$qcode}\"\n"	3275	. "#line 0 \"{$qcode}\"\n"
2270	. $code	3276	. $code
2271	. "\n}"	3277	. "\n}"
2272	;	3278	;
2273		3279
		3280	if ($CFG{safe_eval}) {
2274	sub_generation_inc;	3281	sub_generation_inc;
		3282	local @safe::cf::_safe_eval_args = values %vars;
2275	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3283	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2276	sub_generation_inc;	3284	sub_generation_inc;
		3285	} else {
		3286	local @cf::_safe_eval_args = values %vars;
		3287	@res = wantarray ? eval eval : scalar eval $eval;
		3288	}
2277		3289
2278	if ($@) {	3290	if ($@) {
2279	warn "$@";	3291	warn "$@";
2280	warn "while executing safe code '$code'\n";	3292	warn "while executing safe code '$code'\n";
2281	warn "with arguments " . (join " ", %vars) . "\n";	3293	warn "with arguments " . (join " ", %vars) . "\n";
…		…
2300	=cut	3312	=cut
2301		3313
2302	sub register_script_function {	3314	sub register_script_function {
2303	my ($fun, $cb) = @_;	3315	my ($fun, $cb) = @_;
2304		3316
2305	no strict 'refs';	3317	$fun = "safe::$fun" if $CFG{safe_eval};
2306	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3318	*$fun = $safe_hole->wrap ($cb);
2307	}	3319	}
2308		3320
2309	=back	3321	=back
2310		3322
2311	=cut	3323	=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 $@;
2481	_exit 0;
2482	}
2483	}
2484		3324
2485	#############################################################################	3325	#############################################################################
2486	# the server's init and main functions	3326	# the server's init and main functions
2487		3327
2488	sub load_facedata($) {	3328	sub load_facedata($) {
2489	my ($path) = @_;	3329	my ($path) = @_;
		3330
		3331	# HACK to clear player env face cache, we need some signal framework
		3332	# for this (global event?)
		3333	%ext::player_env::MUSIC_FACE_CACHE = ();
		3334
		3335	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2490		3336
2491	warn "loading facedata from $path\n";	3337	warn "loading facedata from $path\n";
2492		3338
2493	my $facedata;	3339	my $facedata;
2494	0 < aio_load $path, $facedata	3340	0 < aio_load $path, $facedata
…		…
2497	$facedata = Coro::Storable::thaw $facedata;	3343	$facedata = Coro::Storable::thaw $facedata;
2498		3344
2499	$facedata->{version} == 2	3345	$facedata->{version} == 2
2500	or cf::cleanup "$path: version mismatch, cannot proceed.";	3346	or cf::cleanup "$path: version mismatch, cannot proceed.";
2501		3347
		3348	# patch in the exptable
		3349	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3350	$facedata->{resource}{"res/exp_table"} = {
		3351	type => FT_RSRC,
		3352	data => $exp_table,
		3353	hash => (Digest::MD5::md5 $exp_table),
		3354	};
		3355	cf::cede_to_tick;
		3356
2502	{	3357	{
2503	my $faces = $facedata->{faceinfo};	3358	my $faces = $facedata->{faceinfo};
2504		3359
2505	while (my ($face, $info) = each %$faces) {	3360	while (my ($face, $info) = each %$faces) {
2506	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3361	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3362
2507	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3363	cf::face::set_visibility $idx, $info->{visibility};
		3364	cf::face::set_magicmap $idx, $info->{magicmap};
2508	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3365	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2509	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3366	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2510	Coro::cede;	3367
		3368	cf::cede_to_tick;
2511	}	3369	}
2512		3370
2513	while (my ($face, $info) = each %$faces) {	3371	while (my ($face, $info) = each %$faces) {
2514	next unless $info->{smooth};	3372	next unless $info->{smooth};
		3373
2515	my $idx = cf::face::find $face	3374	my $idx = cf::face::find $face
2516	or next;	3375	or next;
		3376
2517	if (my $smooth = cf::face::find $info->{smooth}) {	3377	if (my $smooth = cf::face::find $info->{smooth}) {
		3378	cf::face::set_smooth $idx, $smooth;
2518	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3379	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2519	} else {	3380	} else {
2520	warn "smooth face '$info->{smooth}' not found for face '$face'";	3381	warn "smooth face '$info->{smooth}' not found for face '$face'";
2521	}	3382	}
2522	Coro::cede;	3383
		3384	cf::cede_to_tick;
2523	}	3385	}
2524	}	3386	}
2525		3387
2526	{	3388	{
2527	my $anims = $facedata->{animinfo};	3389	my $anims = $facedata->{animinfo};
2528		3390
2529	while (my ($anim, $info) = each %$anims) {	3391	while (my ($anim, $info) = each %$anims) {
2530	cf::anim::set $anim, $info->{frames}, $info->{facings};	3392	cf::anim::set $anim, $info->{frames}, $info->{facings};
2531	Coro::cede;	3393	cf::cede_to_tick;
2532	}	3394	}
2533		3395
2534	cf::anim::invalidate_all; # d'oh	3396	cf::anim::invalidate_all; # d'oh
2535	}	3397	}
2536		3398
		3399	{
		3400	my $res = $facedata->{resource};
		3401
		3402	while (my ($name, $info) = each %$res) {
		3403	if (defined $info->{type}) {
		3404	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3405
		3406	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3407	cf::face::set_type $idx, $info->{type};
		3408	} else {
		3409	$RESOURCE{$name} = $info;
		3410	}
		3411
		3412	cf::cede_to_tick;
		3413	}
		3414	}
		3415
		3416	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3417
2537	1	3418	1
2538	}	3419	}
2539		3420
		3421	cf::global->attach (on_resource_update => sub {
		3422	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3423	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3424
		3425	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3426	my $sound = $soundconf->{compat}[$_]
		3427	or next;
		3428
		3429	my $face = cf::face::find "sound/$sound->[1]";
		3430	cf::sound::set $sound->[0] => $face;
		3431	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3432	}
		3433
		3434	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3435	my $face = cf::face::find "sound/$v";
		3436	cf::sound::set $k => $face;
		3437	}
		3438	}
		3439	});
		3440
		3441	register_exticmd fx_want => sub {
		3442	my ($ns, $want) = @_;
		3443
		3444	while (my ($k, $v) = each %$want) {
		3445	$ns->fx_want ($k, $v);
		3446	}
		3447	};
		3448
		3449	sub load_resource_file($) {
		3450	my $guard = lock_acquire "load_resource_file";
		3451
		3452	my $status = load_resource_file_ $_[0];
		3453	get_slot 0.1, 100;
		3454	cf::arch::commit_load;
		3455
		3456	$status
		3457	}
		3458
2540	sub reload_regions {	3459	sub reload_regions {
		3460	# HACK to clear player env face cache, we need some signal framework
		3461	# for this (global event?)
		3462	%ext::player_env::MUSIC_FACE_CACHE = ();
		3463
2541	load_resource_file "$MAPDIR/regions"	3464	load_resource_file "$MAPDIR/regions"
2542	or die "unable to load regions file\n";	3465	or die "unable to load regions file\n";
		3466
		3467	for (cf::region::list) {
		3468	$_->{match} = qr/$_->{match}/
		3469	if exists $_->{match};
		3470	}
2543	}	3471	}
2544		3472
2545	sub reload_facedata {	3473	sub reload_facedata {
2546	load_facedata "$DATADIR/facedata"	3474	load_facedata "$DATADIR/facedata"
2547	or die "unable to load facedata\n";	3475	or die "unable to load facedata\n";
…		…
2558	}	3486	}
2559		3487
2560	sub reload_resources {	3488	sub reload_resources {
2561	warn "reloading resource files...\n";	3489	warn "reloading resource files...\n";
2562		3490
		3491	reload_facedata;
		3492	reload_archetypes;
2563	reload_regions;	3493	reload_regions;
2564	reload_facedata;
2565	#reload_archetypes;#d#
2566	reload_archetypes;
2567	reload_treasures;	3494	reload_treasures;
2568		3495
2569	warn "finished reloading resource files\n";	3496	warn "finished reloading resource files\n";
2570	}	3497	}
2571		3498
2572	sub init {	3499	sub reload_config {
2573	reload_resources;	3500	warn "reloading config file...\n";
2574	}
2575		3501
2576	sub cfg_load {
2577	open my $fh, "<:utf8", "$CONFDIR/config"	3502	open my $fh, "<:utf8", "$CONFDIR/config"
2578	or return;	3503	or return;
2579		3504
2580	local $/;	3505	local $/;
2581	*CFG = YAML::Syck::Load <$fh>;	3506	*CFG = YAML::XS::Load scalar <$fh>;
2582		3507
2583	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3508	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2584		3509
2585	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3510	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2586	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3511	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2590	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3515	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2591	and die "WARNING: m(un)lockall failed: $!\n";	3516	and die "WARNING: m(un)lockall failed: $!\n";
2592	};	3517	};
2593	warn $@ if $@;	3518	warn $@ if $@;
2594	}	3519	}
		3520
		3521	warn "finished reloading resource files\n";
		3522	}
		3523
		3524	sub pidfile() {
		3525	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3526	or die "$PIDFILE: $!";
		3527	flock $fh, &Fcntl::LOCK_EX
		3528	or die "$PIDFILE: flock: $!";
		3529	$fh
		3530	}
		3531
		3532	# make sure only one server instance is running at any one time
		3533	sub atomic {
		3534	my $fh = pidfile;
		3535
		3536	my $pid = <$fh>;
		3537	kill 9, $pid if $pid > 0;
		3538
		3539	seek $fh, 0, 0;
		3540	print $fh $$;
		3541	}
		3542
		3543	sub main_loop {
		3544	warn "EV::loop starting\n";
		3545	if (1) {
		3546	EV::loop;
		3547	}
		3548	warn "EV::loop returned\n";
		3549	goto &main_loop unless $REALLY_UNLOOP;
2595	}	3550	}
2596		3551
2597	sub main {	3552	sub main {
		3553	cf::init_globals; # initialise logging
		3554
		3555	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3556	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3557	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3558	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3559
		3560	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3561
2598	# we must not ever block the main coroutine	3562	# we must not ever block the main coroutine
2599	local $Coro::idle = sub {	3563	local $Coro::idle = sub {
2600	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3564	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2601	(async {	3565	(async {
2602	Event::one_event;	3566	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3567	EV::loop EV::LOOP_ONESHOT;
2603	})->prio (Coro::PRIO_MAX);	3568	})->prio (Coro::PRIO_MAX);
2604	};	3569	};
2605		3570
2606	cfg_load;	3571	evthread_start IO::AIO::poll_fileno;
		3572
		3573	cf::sync_job {
		3574	cf::init_experience;
		3575	cf::init_anim;
		3576	cf::init_attackmess;
		3577	cf::init_dynamic;
		3578
		3579	cf::load_settings;
		3580	cf::load_materials;
		3581
		3582	reload_resources;
		3583	reload_config;
2607	db_init;	3584	db_init;
		3585
		3586	cf::init_uuid;
		3587	cf::init_signals;
		3588	cf::init_skills;
		3589
		3590	cf::init_beforeplay;
		3591
		3592	atomic;
		3593
2608	load_extensions;	3594	load_extensions;
2609		3595
2610	$TICK_WATCHER->start;	3596	utime time, time, $RUNTIMEFILE;
2611	Event::loop;	3597
		3598	# no (long-running) fork's whatsoever before this point(!)
		3599	use POSIX ();
		3600	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3601
		3602	(pop @POST_INIT)->(0) while @POST_INIT;
		3603	};
		3604
		3605	cf::object::thawer::errors_are_fatal 0;
		3606	warn "parse errors in files are no longer fatal from this point on.\n";
		3607
		3608	main_loop;
2612	}	3609	}
2613		3610
2614	#############################################################################	3611	#############################################################################
2615	# initialisation and cleanup	3612	# initialisation and cleanup
2616		3613
2617	# install some emergency cleanup handlers	3614	# install some emergency cleanup handlers
2618	BEGIN {	3615	BEGIN {
		3616	our %SIGWATCHER = ();
2619	for my $signal (qw(INT HUP TERM)) {	3617	for my $signal (qw(INT HUP TERM)) {
2620	Event->signal (	3618	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2621	reentrant => 0,
2622	data => WF_AUTOCANCEL,
2623	signal => $signal,
2624	prio => 0,
2625	cb => sub {
2626	cf::cleanup "SIG$signal";	3619	cf::cleanup "SIG$signal";
2627	},
2628	);	3620	};
		3621	}
		3622	}
		3623
		3624	sub write_runtime_sync {
		3625	my $t0 = AE::time;
		3626
		3627	# first touch the runtime file to show we are still running:
		3628	# the fsync below can take a very very long time.
		3629
		3630	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3631
		3632	my $guard = cf::lock_acquire "write_runtime";
		3633
		3634	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3635	or return;
		3636
		3637	my $value = $cf::RUNTIME + 90 + 10;
		3638	# 10 is the runtime save interval, for a monotonic clock
		3639	# 60 allows for the watchdog to kill the server.
		3640
		3641	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3642	and return;
		3643
		3644	# always fsync - this file is important
		3645	aio_fsync $fh
		3646	and return;
		3647
		3648	# touch it again to show we are up-to-date
		3649	aio_utime $fh, undef, undef;
		3650
		3651	close $fh
		3652	or return;
		3653
		3654	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3655	and return;
		3656
		3657	warn sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3658
2629	}	3659	1
		3660	}
		3661
		3662	our $uuid_lock;
		3663	our $uuid_skip;
		3664
		3665	sub write_uuid_sync($) {
		3666	$uuid_skip ||= $_[0];
		3667
		3668	return if $uuid_lock;
		3669	local $uuid_lock = 1;
		3670
		3671	my $uuid = "$LOCALDIR/uuid";
		3672
		3673	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3674	or return;
		3675
		3676	my $value = uuid_seq uuid_cur;
		3677
		3678	unless ($value) {
		3679	warn "cowardly refusing to write zero uuid value!\n";
		3680	return;
		3681	}
		3682
		3683	my $value = uuid_str $value + $uuid_skip;
		3684	$uuid_skip = 0;
		3685
		3686	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3687	and return;
		3688
		3689	# always fsync - this file is important
		3690	aio_fsync $fh
		3691	and return;
		3692
		3693	close $fh
		3694	or return;
		3695
		3696	aio_rename "$uuid~", $uuid
		3697	and return;
		3698
		3699	warn "uuid file written ($value).\n";
		3700
		3701	1
		3702
		3703	}
		3704
		3705	sub write_uuid($$) {
		3706	my ($skip, $sync) = @_;
		3707
		3708	$sync ? write_uuid_sync $skip
		3709	: async { write_uuid_sync $skip };
2630	}	3710	}
2631		3711
2632	sub emergency_save() {	3712	sub emergency_save() {
2633	my $freeze_guard = cf::freeze_mainloop;	3713	my $freeze_guard = cf::freeze_mainloop;
2634		3714
2635	warn "enter emergency perl save\n";	3715	warn "emergency_perl_save: enter\n";
2636		3716
2637	cf::sync_job {	3717	cf::sync_job {
		3718	# this is a trade-off: we want to be very quick here, so
		3719	# save all maps without fsync, and later call a global sync
		3720	# (which in turn might be very very slow)
		3721	local $USE_FSYNC = 0;
		3722
2638	# use a peculiar iteration method to avoid tripping on perl	3723	# use a peculiar iteration method to avoid tripping on perl
2639	# refcount bugs in for. also avoids problems with players	3724	# refcount bugs in for. also avoids problems with players
2640	# and maps saved/destroyed asynchronously.	3725	# and maps saved/destroyed asynchronously.
2641	warn "begin emergency player save\n";	3726	warn "emergency_perl_save: begin player save\n";
2642	for my $login (keys %cf::PLAYER) {	3727	for my $login (keys %cf::PLAYER) {
2643	my $pl = $cf::PLAYER{$login} or next;	3728	my $pl = $cf::PLAYER{$login} or next;
2644	$pl->valid or next;	3729	$pl->valid or next;
		3730	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2645	$pl->save;	3731	$pl->save;
2646	}	3732	}
2647	warn "end emergency player save\n";	3733	warn "emergency_perl_save: end player save\n";
2648		3734
2649	warn "begin emergency map save\n";	3735	warn "emergency_perl_save: begin map save\n";
2650	for my $path (keys %cf::MAP) {	3736	for my $path (keys %cf::MAP) {
2651	my $map = $cf::MAP{$path} or next;	3737	my $map = $cf::MAP{$path} or next;
2652	$map->valid or next;	3738	$map->valid or next;
2653	$map->save;	3739	$map->save;
2654	}	3740	}
2655	warn "end emergency map save\n";	3741	warn "emergency_perl_save: end map save\n";
2656		3742
2657	warn "begin emergency database checkpoint\n";	3743	warn "emergency_perl_save: begin database checkpoint\n";
2658	BDB::db_env_txn_checkpoint $DB_ENV;	3744	BDB::db_env_txn_checkpoint $DB_ENV;
2659	warn "end emergency database checkpoint\n";	3745	warn "emergency_perl_save: end database checkpoint\n";
		3746
		3747	warn "emergency_perl_save: begin write uuid\n";
		3748	write_uuid_sync 1;
		3749	warn "emergency_perl_save: end write uuid\n";
2660	};	3750	};
2661		3751
		3752	warn "emergency_perl_save: starting sync()\n";
		3753	IO::AIO::aio_sync sub {
		3754	warn "emergency_perl_save: finished sync()\n";
		3755	};
		3756
2662	warn "leave emergency perl save\n";	3757	warn "emergency_perl_save: leave\n";
2663	}	3758	}
2664		3759
2665	sub post_cleanup {	3760	sub post_cleanup {
2666	my ($make_core) = @_;	3761	my ($make_core) = @_;
2667		3762
2668	warn Carp::longmess "post_cleanup backtrace"	3763	warn Carp::longmess "post_cleanup backtrace"
2669	if $make_core;	3764	if $make_core;
		3765
		3766	my $fh = pidfile;
		3767	unlink $PIDFILE if <$fh> == $$;
		3768	}
		3769
		3770	# a safer delete_package, copied from Symbol
		3771	sub clear_package($) {
		3772	my $pkg = shift;
		3773
		3774	# expand to full symbol table name if needed
		3775	unless ($pkg =~ /^main::.*::$/) {
		3776	$pkg = "main$pkg" if $pkg =~ /^::/;
		3777	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3778	$pkg .= '::' unless $pkg =~ /::$/;
		3779	}
		3780
		3781	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3782	my $stem_symtab = *{$stem}{HASH};
		3783
		3784	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3785	or return;
		3786
		3787	# clear all symbols
		3788	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3789	for my $name (keys %$leaf_symtab) {
		3790	_gv_clear *{"$pkg$name"};
		3791	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3792	}
2670	}	3793	}
2671		3794
2672	sub do_reload_perl() {	3795	sub do_reload_perl() {
2673	# can/must only be called in main	3796	# can/must only be called in main
2674	if ($Coro::current != $Coro::main) {	3797	if ($Coro::current != $Coro::main) {
2675	warn "can only reload from main coroutine";	3798	warn "can only reload from main coroutine";
2676	return;	3799	return;
2677	}	3800	}
2678		3801
		3802	return if $RELOAD++;
		3803
		3804	my $t1 = AE::time;
		3805
		3806	while ($RELOAD) {
2679	warn "reloading...";	3807	warn "reloading...";
2680		3808
2681	warn "entering sync_job";	3809	warn "entering sync_job";
2682		3810
2683	cf::sync_job {	3811	cf::sync_job {
2684	cf::write_runtime; # external watchdog should not bark	3812	cf::write_runtime_sync; # external watchdog should not bark
2685	cf::emergency_save;	3813	cf::emergency_save;
2686	cf::write_runtime; # external watchdog should not bark	3814	cf::write_runtime_sync; # external watchdog should not bark
2687		3815
2688	warn "syncing database to disk";	3816	warn "syncing database to disk";
2689	BDB::db_env_txn_checkpoint $DB_ENV;	3817	BDB::db_env_txn_checkpoint $DB_ENV;
2690		3818
2691	# if anything goes wrong in here, we should simply crash as we already saved	3819	# if anything goes wrong in here, we should simply crash as we already saved
2692		3820
2693	warn "cancelling all WF_AUTOCANCEL watchers";
2694	for (Event::all_watchers) {
2695	$_->cancel if $_->data & WF_AUTOCANCEL;
2696	}
2697
2698	warn "flushing outstanding aio requests";	3821	warn "flushing outstanding aio requests";
2699	for (;;) {
2700	BDB::flush;
2701	IO::AIO::flush;
2702	Coro::cede;
2703	last unless IO::AIO::nreqs || BDB::nreqs;	3822	while (IO::AIO::nreqs || BDB::nreqs) {
2704	warn "iterate...";	3823	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2705	}
2706
2707	++$RELOAD;
2708
2709	warn "cancelling all extension coros";
2710	$_->cancel for values %EXT_CORO;
2711	%EXT_CORO = ();
2712
2713	warn "removing commands";
2714	%COMMAND = ();
2715
2716	warn "removing ext commands";
2717	%EXTCMD = ();
2718
2719	warn "unloading/nuking all extensions";
2720	for my $pkg (@EXTS) {
2721	warn "... unloading $pkg";
2722
2723	if (my $cb = $pkg->can ("unload")) {
2724	eval {
2725	$cb->($pkg);
2726	1
2727	} or warn "$pkg unloaded, but with errors: $@";
2728	}	3824	}
2729		3825
2730	warn "... nuking $pkg";	3826	warn "cancelling all extension coros";
2731	Symbol::delete_package $pkg;	3827	$_->cancel for values %EXT_CORO;
2732	}	3828	%EXT_CORO = ();
2733		3829
2734	warn "unloading all perl modules loaded from $LIBDIR";	3830	warn "removing commands";
2735	while (my ($k, $v) = each %INC) {	3831	%COMMAND = ();
2736	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2737		3832
		3833	warn "removing ext/exti commands";
		3834	%EXTCMD = ();
		3835	%EXTICMD = ();
		3836
		3837	warn "unloading/nuking all extensions";
		3838	for my $pkg (@EXTS) {
2738	warn "... unloading $k";	3839	warn "... unloading $pkg";
2739	delete $INC{$k};
2740		3840
2741	$k =~ s/\.pm$//;
2742	$k =~ s/\//::/g;
2743
2744	if (my $cb = $k->can ("unload_module")) {	3841	if (my $cb = $pkg->can ("unload")) {
		3842	eval {
2745	$cb->();	3843	$cb->($pkg);
		3844	1
		3845	} or warn "$pkg unloaded, but with errors: $@";
		3846	}
		3847
		3848	warn "... clearing $pkg";
		3849	clear_package $pkg;
2746	}	3850	}
2747		3851
2748	Symbol::delete_package $k;	3852	warn "unloading all perl modules loaded from $LIBDIR";
		3853	while (my ($k, $v) = each %INC) {
		3854	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3855
		3856	warn "... unloading $k";
		3857	delete $INC{$k};
		3858
		3859	$k =~ s/\.pm$//;
		3860	$k =~ s/\//::/g;
		3861
		3862	if (my $cb = $k->can ("unload_module")) {
		3863	$cb->();
		3864	}
		3865
		3866	clear_package $k;
2749	}	3867	}
2750		3868
2751	warn "getting rid of safe::, as good as possible";	3869	warn "getting rid of safe::, as good as possible";
2752	Symbol::delete_package "safe::$_"	3870	clear_package "safe::$_"
2753	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3871	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2754		3872
2755	warn "unloading cf.pm \"a bit\"";	3873	warn "unloading cf.pm \"a bit\"";
2756	delete $INC{"cf.pm"};	3874	delete $INC{"cf.pm"};
2757	delete $INC{"cf/pod.pm"};	3875	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2758		3876
2759	# don't, removes xs symbols, too,	3877	# don't, removes xs symbols, too,
2760	# and global variables created in xs	3878	# and global variables created in xs
2761	#Symbol::delete_package __PACKAGE__;	3879	#clear_package __PACKAGE__;
2762		3880
2763	warn "unload completed, starting to reload now";	3881	warn "unload completed, starting to reload now";
2764		3882
2765	warn "reloading cf.pm";	3883	warn "reloading cf.pm";
2766	require cf;	3884	require cf;
2767	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3885	cf::_connect_to_perl_1;
2768		3886
2769	warn "loading config and database again";	3887	warn "loading config and database again";
2770	cf::cfg_load;	3888	cf::reload_config;
2771		3889
2772	warn "loading extensions";	3890	warn "loading extensions";
2773	cf::load_extensions;	3891	cf::load_extensions;
2774		3892
		3893	if ($REATTACH_ON_RELOAD) {
2775	warn "reattaching attachments to objects/players";	3894	warn "reattaching attachments to objects/players";
2776	_global_reattach; # objects, sockets	3895	_global_reattach; # objects, sockets
2777	warn "reattaching attachments to maps";	3896	warn "reattaching attachments to maps";
2778	reattach $_ for values %MAP;	3897	reattach $_ for values %MAP;
2779	warn "reattaching attachments to players";	3898	warn "reattaching attachments to players";
2780	reattach $_ for values %PLAYER;	3899	reattach $_ for values %PLAYER;
		3900	}
2781		3901
		3902	warn "running post_init jobs";
		3903	(pop @POST_INIT)->(1) while @POST_INIT;
		3904
2782	warn "leaving sync_job";	3905	warn "leaving sync_job";
2783		3906
2784	1	3907	1
2785	} or do {	3908	} or do {
2786	warn $@;	3909	warn $@;
2787	warn "error while reloading, exiting.";	3910	cf::cleanup "error while reloading, exiting.";
2788	exit 1;
2789	};	3911	};
2790		3912
2791	warn "reloaded";	3913	warn "reloaded";
		3914	--$RELOAD;
		3915	}
		3916
		3917	$t1 = AE::time - $t1;
		3918	warn "reload completed in ${t1}s\n";
2792	};	3919	};
2793		3920
2794	our $RELOAD_WATCHER; # used only during reload	3921	our $RELOAD_WATCHER; # used only during reload
2795		3922
2796	sub reload_perl() {	3923	sub reload_perl() {
2797	# doing reload synchronously and two reloads happen back-to-back,	3924	# doing reload synchronously and two reloads happen back-to-back,
2798	# coro crashes during coro_state_free->destroy here.	3925	# coro crashes during coro_state_free->destroy here.
2799		3926
2800	$RELOAD_WATCHER ||= Event->timer (	3927	$RELOAD_WATCHER ||= cf::async {
2801	reentrant => 0,	3928	Coro::AIO::aio_wait cache_extensions;
2802	after => 0,	3929
2803	data => WF_AUTOCANCEL,	3930	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
2804	cb => sub {
2805	do_reload_perl;	3931	do_reload_perl;
2806	undef $RELOAD_WATCHER;	3932	undef $RELOAD_WATCHER;
2807	},	3933	};
2808	);	3934	};
2809	}	3935	}
2810		3936
2811	register_command "reload" => sub {	3937	register_command "reload" => sub {
2812	my ($who, $arg) = @_;	3938	my ($who, $arg) = @_;
2813		3939
2814	if ($who->flag (FLAG_WIZ)) {	3940	if ($who->flag (FLAG_WIZ)) {
2815	$who->message ("reloading server.");	3941	$who->message ("reloading server.");
		3942	async {
		3943	$Coro::current->{desc} = "perl_reload";
2816	async { reload_perl };	3944	reload_perl;
		3945	};
2817	}	3946	}
2818	};	3947	};
2819		3948
2820	unshift @INC, $LIBDIR;	3949	unshift @INC, $LIBDIR;
2821		3950
…		…
2823		3952
2824	our @WAIT_FOR_TICK;	3953	our @WAIT_FOR_TICK;
2825	our @WAIT_FOR_TICK_BEGIN;	3954	our @WAIT_FOR_TICK_BEGIN;
2826		3955
2827	sub wait_for_tick {	3956	sub wait_for_tick {
2828	return unless $TICK_WATCHER->is_active;
2829	return if $Coro::current == $Coro::main;	3957	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2830		3958
2831	my $signal = new Coro::Signal;	3959	my $signal = new Coro::Signal;
2832	push @WAIT_FOR_TICK, $signal;	3960	push @WAIT_FOR_TICK, $signal;
2833	$signal->wait;	3961	$signal->wait;
2834	}	3962	}
2835		3963
2836	sub wait_for_tick_begin {	3964	sub wait_for_tick_begin {
2837	return unless $TICK_WATCHER->is_active;
2838	return if $Coro::current == $Coro::main;	3965	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2839		3966
2840	my $signal = new Coro::Signal;	3967	my $signal = new Coro::Signal;
2841	push @WAIT_FOR_TICK_BEGIN, $signal;	3968	push @WAIT_FOR_TICK_BEGIN, $signal;
2842	$signal->wait;	3969	$signal->wait;
2843	}	3970	}
2844		3971
2845	my $min = 1e6;#d#	3972	sub tick {
2846	my $avg = 10;
2847	$TICK_WATCHER = Event->timer (
2848	reentrant => 0,
2849	parked => 1,
2850	prio => 0,
2851	at => $NEXT_TICK || $TICK,
2852	data => WF_AUTOCANCEL,
2853	cb => sub {
2854	if ($Coro::current != $Coro::main) {	3973	if ($Coro::current != $Coro::main) {
2855	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3974	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2856	unless ++$bug_warning > 10;	3975	unless ++$bug_warning > 10;
2857	return;	3976	return;
2858	}	3977	}
2859		3978
2860	$NOW = $tick_start = Event::time;
2861
2862	cf::server_tick; # one server iteration	3979	cf::server_tick; # one server iteration
2863		3980
2864	0 && sync_job {#d#	3981	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2865	for(1..10) {
2866	my $t = Event::time;
2867	my $map = my $map = new_from_path cf::map "/tmp/x.map"
2868	or die;
2869		3982
2870	$map->width (50);	3983	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2871	$map->height (50);	3984	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2872	$map->alloc;	3985	Coro::async_pool {
2873	$map->_load_objects ("/tmp/x.map", 1);	3986	$Coro::current->{desc} = "runtime saver";
2874	my $t = Event::time - $t;	3987	write_runtime_sync
2875		3988	or warn "ERROR: unable to write runtime file: $!";
2876	#next unless $t < 0.0013;#d#
2877	if ($t < $min) {
2878	$min = $t;
2879	}
2880	$avg = $avg * 0.99 + $t * 0.01;
2881	}
2882	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
2883	exit 0;
2884	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2885	};	3989	};
		3990	}
2886		3991
2887	$RUNTIME += $TICK;
2888	$NEXT_TICK += $TICK;
2889
2890	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2891	$NEXT_RUNTIME_WRITE = $NOW + 10;
2892	Coro::async_pool {
2893	write_runtime
2894	or warn "ERROR: unable to write runtime file: $!";
2895	};
2896	}
2897
2898	# my $AFTER = Event::time;
2899	# warn $AFTER - $NOW;#d#
2900
2901	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3992	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2902	$sig->send;	3993	$sig->send;
2903	}	3994	}
2904	while (my $sig = shift @WAIT_FOR_TICK) {	3995	while (my $sig = shift @WAIT_FOR_TICK) {
2905	$sig->send;	3996	$sig->send;
2906	}	3997	}
2907		3998
2908	$NOW = Event::time;	3999	$LOAD = ($NOW - $TICK_START) / $TICK;
2909
2910	# if we are delayed by four ticks or more, skip them all
2911	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2912
2913	$TICK_WATCHER->at ($NEXT_TICK);
2914	$TICK_WATCHER->start;
2915
2916	$LOAD = ($NOW - $tick_start) / $TICK;
2917	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;	4000	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2918		4001
2919	_post_tick;	4002	if (0) {
2920		4003	if ($NEXT_TICK) {
2921		4004	my $jitter = $TICK_START - $NEXT_TICK;
		4005	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4006	warn "jitter $JITTER\n";#d#
		4007	}
2922	},	4008	}
2923	);	4009	}
2924		4010
2925	{	4011	{
2926	BDB::max_poll_time $TICK * 0.1;	4012	# configure BDB
2927	$BDB_POLL_WATCHER = Event->io (	4013
2928	reentrant => 0,
2929	fd => BDB::poll_fileno,
2930	poll => 'r',
2931	prio => 0,
2932	data => WF_AUTOCANCEL,
2933	cb => \&BDB::poll_cb,
2934	);
2935	BDB::min_parallel 8;	4014	BDB::min_parallel 16;
2936		4015	BDB::max_poll_reqs $TICK * 0.1;
2937	BDB::set_sync_prepare {	4016	$AnyEvent::BDB::WATCHER->priority (1);
2938	my $status;
2939	my $current = $Coro::current;
2940	(
2941	sub {
2942	$status = $!;
2943	$current->ready; undef $current;
2944	},
2945	sub {
2946	Coro::schedule while defined $current;
2947	$! = $status;
2948	},
2949	)
2950	};
2951		4017
2952	unless ($DB_ENV) {	4018	unless ($DB_ENV) {
2953	$DB_ENV = BDB::db_env_create;	4019	$DB_ENV = BDB::db_env_create;
		4020	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4021	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4022	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4023	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4024	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2954		4025
2955	cf::sync_job {	4026	cf::sync_job {
2956	eval {	4027	eval {
2957	BDB::db_env_open	4028	BDB::db_env_open
2958	$DB_ENV,	4029	$DB_ENV,
…		…
2960	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4031	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2961	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4032	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2962	0666;	4033	0666;
2963		4034
2964	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	4035	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2965
2966	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2967	$DB_ENV->set_lk_detect;
2968	};	4036	};
2969		4037
2970	cf::cleanup "db_env_open(db): $@" if $@;	4038	cf::cleanup "db_env_open(db): $@" if $@;
2971	};	4039	};
2972	}	4040	}
		4041
		4042	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4043	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4044	};
		4045	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4046	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4047	};
		4048	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4049	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4050	};
2973	}	4051	}
2974		4052
2975	{	4053	{
		4054	# configure IO::AIO
		4055
2976	IO::AIO::min_parallel 8;	4056	IO::AIO::min_parallel 8;
2977
2978	undef $Coro::AIO::WATCHER;
2979	IO::AIO::max_poll_time $TICK * 0.1;	4057	IO::AIO::max_poll_time $TICK * 0.1;
2980	$AIO_POLL_WATCHER = Event->io (	4058	undef $AnyEvent::AIO::WATCHER;
2981	reentrant => 0,
2982	data => WF_AUTOCANCEL,
2983	fd => IO::AIO::poll_fileno,
2984	poll => 'r',
2985	prio => 6,
2986	cb => \&IO::AIO::poll_cb,
2987	);
2988	}	4059	}
2989		4060
2990	my $_log_backtrace;	4061	my $_log_backtrace;
2991		4062
2992	sub _log_backtrace {	4063	sub _log_backtrace {
…		…
2995	$msg =~ s/\n//;	4066	$msg =~ s/\n//;
2996		4067
2997	# limit the # of concurrent backtraces	4068	# limit the # of concurrent backtraces
2998	if ($_log_backtrace < 2) {	4069	if ($_log_backtrace < 2) {
2999	++$_log_backtrace;	4070	++$_log_backtrace;
		4071	my $perl_bt = Carp::longmess $msg;
3000	async {	4072	async {
		4073	$Coro::current->{desc} = "abt $msg";
		4074
3001	my @bt = fork_call {	4075	my @bt = fork_call {
3002	@addr = map { sprintf "%x", $_ } @addr;	4076	@addr = map { sprintf "%x", $_ } @addr;
3003	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;	4077	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
3004	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"	4078	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
3005	or die "addr2line: $!";	4079	or die "addr2line: $!";
…		…
3013	}	4087	}
3014		4088
3015	@funcs	4089	@funcs
3016	};	4090	};
3017		4091
3018	LOG llevInfo, "[ABT] $msg\n";	4092	LOG llevInfo, "[ABT] $perl_bt\n";
		4093	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
3019	LOG llevInfo, "[ABT] $_\n" for @bt;	4094	LOG llevInfo, "[ABT] $_\n" for @bt;
3020	--$_log_backtrace;	4095	--$_log_backtrace;
3021	};	4096	};
3022	} else {	4097	} else {
3023	LOG llevInfo, "[ABT] $msg\n";	4098	LOG llevInfo, "[ABT] $msg\n";
3024	LOG llevInfo, "[ABT] [suppressed]\n";	4099	LOG llevInfo, "[ABT] [suppressed]\n";
3025	}	4100	}
3026	}	4101	}
3027		4102
3028	# load additional modules	4103	# load additional modules
3029	use cf::pod;	4104	require "cf/$_.pm" for @EXTRA_MODULES;
		4105	cf::_connect_to_perl_2;
3030		4106
3031	END { cf::emergency_save }	4107	END { cf::emergency_save }
3032		4108
3033	1	4109	1
3034		4110

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