ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/deliantra/server/lib/cf.pm

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.282 by elmex, Tue Jun 19 18:15:34 2007 UTC vs.
Revision 1.540 by root, Tue May 4 23:32:29 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
3	use utf8;	25	use common::sense;
4	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Socket;	29	use Socket;
9	use Storable;	30	use EV;
10	use Event;
11	use Opcode;	31	use Opcode;
12	use Safe;	32	use Safe;
13	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
14		36
		37	use Guard ();
15	use Coro 3.61 ();	38	use Coro ();
16	use Coro::State;	39	use Coro::State;
17	use Coro::Handle;	40	use Coro::Handle;
		41	use Coro::EV;
18	use Coro::Event;	42	use Coro::AnyEvent;
19	use Coro::Timer;	43	use Coro::Timer;
20	use Coro::Signal;	44	use Coro::Signal;
21	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
22	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
23	use Coro::Storable;	50	use Coro::Storable;
		51	use Coro::Util ();
24		52
		53	use JSON::XS 2.01 ();
25	use BDB ();	54	use BDB ();
26	use Data::Dumper;	55	use Data::Dumper;
27	use Digest::MD5;
28	use Fcntl;	56	use Fcntl;
29	use YAML::Syck ();	57	use YAML::XS ();
30	use IO::AIO 2.32 ();	58	use IO::AIO ();
31	use Time::HiRes;	59	use Time::HiRes;
32	use Compress::LZF;	60	use Compress::LZF;
		61	use Digest::MD5 ();
		62
		63	AnyEvent::detect;
33		64
34	# configure various modules to our taste	65	# configure various modules to our taste
35	#	66	#
36	$Storable::canonical = 1; # reduce rsync transfers	67	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	68	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		69
		70	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		71
		72	# make sure c-lzf reinitialises itself
		73	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	74	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
39		75
40	$Event::Eval = 1; # no idea why this is required, but it is	76	# strictly for debugging
41		77	$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		78
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	79	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		80
		81	our @ORIG_INC;
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; # unused
		112
		113	our $OUTPUT_RATE_MIN = 3000;
		114	our $OUTPUT_RATE_MAX = 1000000;
		115
		116	our $MAX_LINKS = 32; # how many chained exits to follow
		117	our $VERBOSE_IO = 1;
71		118
72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	119	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	120	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
76	our $NEXT_TICK;	121	our $NEXT_TICK;
77	our $NOW;
78	our $USE_FSYNC = 1; # use fsync to write maps - default off	122	our $USE_FSYNC = 1; # use fsync to write maps - default on
79		123
		124	our $BDB_DEADLOCK_WATCHER;
		125	our $BDB_CHECKPOINT_WATCHER;
80	our $BDB_POLL_WATCHER;	126	our $BDB_TRICKLE_WATCHER;
81	our $DB_ENV;	127	our $DB_ENV;
		128
		129	our @EXTRA_MODULES = qw(pod match mapscript);
82		130
83	our %CFG;	131	our %CFG;
84		132
85	our $UPTIME; $UPTIME ||= time;	133	our $UPTIME; $UPTIME ||= time;
86	our $RUNTIME;	134	our $RUNTIME;
		135	our $NOW;
87		136
88	our %PLAYER; # all users	137	our (%PLAYER, %PLAYER_LOADING); # all users
89	our %MAP; # all maps	138	our (%MAP, %MAP_LOADING ); # all maps
90	our $LINK_MAP; # the special {link} map, which is always available	139	our $LINK_MAP; # the special {link} map, which is always available
91		140
92	# used to convert map paths into valid unix filenames by replacing / by ∕	141	# used to convert map paths into valid unix filenames by replacing / by ∕
93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	142	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
94		143
95	our $LOAD; # a number between 0 (idle) and 1 (too many objects)	144	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
96	our $LOADAVG; # same thing, but with alpha-smoothing	145	our $LOADAVG; # same thing, but with alpha-smoothing
		146	our $JITTER; # average jitter
97	our $tick_start; # for load detecting purposes	147	our $TICK_START; # for load detecting purposes
		148
		149	our @POST_INIT;
		150
		151	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		152	our $REALLY_UNLOOP; # never set to true, please :)
98		153
99	binmode STDOUT;	154	binmode STDOUT;
100	binmode STDERR;	155	binmode STDERR;
101		156
102	# read virtual server time, if available	157	# read virtual server time, if available
103	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {	158	unless ($RUNTIME || !-e $RUNTIMEFILE) {
104	open my $fh, "<", "$LOCALDIR/runtime"	159	open my $fh, "<", $RUNTIMEFILE
105	or die "unable to read runtime file: $!";	160	or die "unable to read $RUNTIMEFILE file: $!";
106	$RUNTIME = <$fh> + 0.;	161	$RUNTIME = <$fh> + 0.;
107	}	162	}
		163
		164	eval "sub TICK() { $TICK } 1" or die;
108		165
109	mkdir $_	166	mkdir $_
110	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;	167	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
111		168
112	our $EMERGENCY_POSITION;	169	our $EMERGENCY_POSITION;
113		170
114	sub cf::map::normalise;	171	sub cf::map::normalise;
		172
		173	sub in_main() {
		174	$Coro::current == $Coro::main
		175	}
		176
		177	#############################################################################
		178
		179	%REFLECT = ();
		180	for (@REFLECT) {
		181	my $reflect = JSON::XS::decode_json $_;
		182	$REFLECT{$reflect->{class}} = $reflect;
		183	}
		184
		185	# this is decidedly evil
		186	$REFLECT{object}{flags} = { map +($_ => undef), grep $_, map /^FLAG_([A-Z0-9_]+)$/ && lc $1, keys %{"cf::"} };
115		187
116	#############################################################################	188	#############################################################################
117		189
118	=head2 GLOBAL VARIABLES	190	=head2 GLOBAL VARIABLES
119		191
…		…
155		227
156	The raw value load value from the last tick.	228	The raw value load value from the last tick.
157		229
158	=item %cf::CFG	230	=item %cf::CFG
159		231
160	Configuration for the server, loaded from C</etc/crossfire/config>, or	232	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
161	from wherever your confdir points to.	233	from wherever your confdir points to.
162		234
163	=item cf::wait_for_tick, cf::wait_for_tick_begin	235	=item cf::wait_for_tick, cf::wait_for_tick_begin
164		236
165	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	237	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	238	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.	239	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
168		240
		241	=item @cf::INVOKE_RESULTS
		242
		243	This array contains the results of the last C<invoke ()> call. When
		244	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		245	that call.
		246
		247	=item %cf::REFLECT
		248
		249	Contains, for each (C++) class name, a hash reference with information
		250	about object members (methods, scalars, arrays and flags) and other
		251	metadata, which is useful for introspection.
		252
169	=back	253	=back
170		254
171	=cut	255	=cut
172		256
173	BEGIN {	257	sub error(@) { LOG llevError, join "", @_ }
174	*CORE::GLOBAL::warn = sub {	258	sub warn (@) { LOG llevWarn , join "", @_ }
		259	sub info (@) { LOG llevInfo , join "", @_ }
		260	sub debug(@) { LOG llevDebug, join "", @_ }
		261	sub trace(@) { LOG llevTrace, join "", @_ }
		262
		263	$Coro::State::WARNHOOK = sub {
175	my $msg = join "", @_;	264	my $msg = join "", @_;
176		265
177	$msg .= "\n"	266	$msg .= "\n"
178	unless $msg =~ /\n$/;	267	unless $msg =~ /\n$/;
179		268
180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	269	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
181		270
182	utf8::encode $msg;
183	LOG llevError, $msg;	271	LOG llevWarn, $msg;
184	};	272	};
185	}	273
		274	$Coro::State::DIEHOOK = sub {
		275	return unless $^S eq 0; # "eq", not "=="
		276
		277	error Carp::longmess $_[0];
		278
		279	if (in_main) {#d#
		280	error "DIEHOOK called in main context, Coro bug?\n";#d#
		281	return;#d#
		282	}#d#
		283
		284	# kill coroutine otherwise
		285	Coro::terminate
		286	};
186		287
187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	288	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	289	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	290	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	291	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
…		…
197	for my $pkg (qw(	298	for my $pkg (qw(
198	cf::global cf::attachable	299	cf::global cf::attachable
199	cf::object cf::object::player	300	cf::object cf::object::player
200	cf::client cf::player	301	cf::client cf::player
201	cf::arch cf::living	302	cf::arch cf::living
		303	cf::map cf::mapspace
202	cf::map cf::party cf::region	304	cf::party cf::region
203	)) {	305	)) {
204	no strict 'refs';
205	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	306	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
206	}	307	}
207		308
208	$Event::DIED = sub {	309	$EV::DIED = sub {
209	warn "error in event callback: @_";	310	Carp::cluck "error in event callback: @_";
210	};	311	};
211		312
212	#############################################################################	313	#############################################################################
213		314
214	=head2 UTILITY FUNCTIONS	315	=head2 UTILITY FUNCTIONS
…		…
236	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	337	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
237	$d	338	$d
238	} || "[unable to dump $_[0]: '$@']";	339	} || "[unable to dump $_[0]: '$@']";
239	}	340	}
240		341
241	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
242
243	=item $ref = cf::from_json $json	342	=item $ref = cf::decode_json $json
244		343
245	Converts a JSON string into the corresponding perl data structure.	344	Converts a JSON string into the corresponding perl data structure.
246		345
247	=item $json = cf::to_json $ref	346	=item $json = cf::encode_json $ref
248		347
249	Converts a perl data structure into its JSON representation.	348	Converts a perl data structure into its JSON representation.
250		349
		350	=cut
		351
		352	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		353
		354	sub encode_json($) { $json_coder->encode ($_[0]) }
		355	sub decode_json($) { $json_coder->decode ($_[0]) }
		356
		357	=item cf::post_init { BLOCK }
		358
		359	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		360	but I<before> the server starts ticking again.
		361
		362	The cdoeblock will have a single boolean argument to indicate whether this
		363	is a reload or not.
		364
		365	=cut
		366
		367	sub post_init(&) {
		368	push @POST_INIT, shift;
		369	}
		370
251	=item cf::lock_wait $string	371	=item cf::lock_wait $string
252		372
253	Wait until the given lock is available. See cf::lock_acquire.	373	Wait until the given lock is available. See cf::lock_acquire.
254		374
255	=item my $lock = cf::lock_acquire $string	375	=item my $lock = cf::lock_acquire $string
256		376
257	Wait until the given lock is available and then acquires it and returns	377	Wait until the given lock is available and then acquires it and returns
258	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	378	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
259	for example when the coroutine gets canceled), the lock is automatically	379	for example when the coroutine gets canceled), the lock is automatically
260	returned.	380	returned.
261		381
		382	Locks are *not* recursive, locking from the same coro twice results in a
		383	deadlocked coro.
		384
262	Lock names should begin with a unique identifier (for example, cf::map::find	385	Lock names should begin with a unique identifier (for example, cf::map::find
263	uses map_find and cf::map::load uses map_load).	386	uses map_find and cf::map::load uses map_load).
264		387
265	=item $locked = cf::lock_active $string	388	=item $locked = cf::lock_active $string
266		389
267	Return true if the lock is currently active, i.e. somebody has locked it.	390	Return true if the lock is currently active, i.e. somebody has locked it.
268		391
269	=cut	392	=cut
270		393
271	our %LOCK;	394	our $LOCKS = new Coro::SemaphoreSet;
272		395
273	sub lock_wait($) {	396	sub lock_wait($) {
274	my ($key) = @_;	397	$LOCKS->wait ($_[0]);
275
276	# wait for lock, if any
277	while ($LOCK{$key}) {
278	push @{ $LOCK{$key} }, $Coro::current;
279	Coro::schedule;
280	}
281	}	398	}
282		399
283	sub lock_acquire($) {	400	sub lock_acquire($) {
284	my ($key) = @_;	401	$LOCKS->guard ($_[0])
285
286	# wait, to be sure we are not locked
287	lock_wait $key;
288
289	$LOCK{$key} = [];
290
291	Coro::guard {
292	# wake up all waiters, to be on the safe side
293	$_->ready for @{ delete $LOCK{$key} };
294	}
295	}	402	}
296		403
297	sub lock_active($) {	404	sub lock_active($) {
298	my ($key) = @_;	405	$LOCKS->count ($_[0]) < 1
299
300	! ! $LOCK{$key}
301	}	406	}
302		407
303	sub freeze_mainloop {	408	sub freeze_mainloop {
304	return unless $TICK_WATCHER->is_active;	409	tick_inhibit_inc;
305		410
306	my $guard = Coro::guard {	411	&Guard::guard (\&tick_inhibit_dec);
307	$TICK_WATCHER->start;	412	}
		413
		414	=item cf::periodic $interval, $cb
		415
		416	Like EV::periodic, but randomly selects a starting point so that the actions
		417	get spread over time.
		418
		419	=cut
		420
		421	sub periodic($$) {
		422	my ($interval, $cb) = @_;
		423
		424	my $start = rand List::Util::min 180, $interval;
		425
		426	EV::periodic $start, $interval, 0, $cb
		427	}
		428
		429	=item cf::get_slot $time[, $priority[, $name]]
		430
		431	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		432	This call blocks and returns only when you have at least C<$time> seconds
		433	of cpu time till the next tick. The slot is only valid till the next cede.
		434
		435	The optional C<$name> can be used to identify the job to run. It might be
		436	used for statistical purposes and should identify the same time-class.
		437
		438	Useful for short background jobs.
		439
		440	=cut
		441
		442	our @SLOT_QUEUE;
		443	our $SLOT_QUEUE;
		444	our $SLOT_DECAY = 0.9;
		445
		446	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		447	$SLOT_QUEUE = Coro::async {
		448	$Coro::current->desc ("timeslot manager");
		449
		450	my $signal = new Coro::Signal;
		451	my $busy;
		452
		453	while () {
		454	next_job:
		455
		456	my $avail = cf::till_tick;
		457
		458	for (0 .. $#SLOT_QUEUE) {
		459	if ($SLOT_QUEUE[$_][0] <= $avail) {
		460	$busy = 0;
		461	my $job = splice @SLOT_QUEUE, $_, 1, ();
		462	$job->[2]->send;
		463	Coro::cede;
		464	goto next_job;
		465	} else {
		466	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		467	}
		468	}
		469
		470	if (@SLOT_QUEUE) {
		471	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		472	push @cf::WAIT_FOR_TICK, $signal;
		473	$signal->wait;
		474	} else {
		475	$busy = 0;
		476	Coro::schedule;
		477	}
308	};	478	}
309	$TICK_WATCHER->stop;	479	};
310	$guard	480
		481	sub get_slot($;$$) {
		482	return if tick_inhibit || $Coro::current == $Coro::main;
		483
		484	my ($time, $pri, $name) = @_;
		485
		486	$time = clamp $time, 0.01, $TICK * .6;
		487
		488	my $sig = new Coro::Signal;
		489
		490	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		491	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		492	$SLOT_QUEUE->ready;
		493	$sig->wait;
311	}	494	}
312		495
313	=item cf::async { BLOCK }	496	=item cf::async { BLOCK }
314		497
315	Currently the same as Coro::async_pool, meaning you cannot use	498	Currently the same as Coro::async_pool, meaning you cannot use
…		…
320		503
321	BEGIN { *async = \&Coro::async_pool }	504	BEGIN { *async = \&Coro::async_pool }
322		505
323	=item cf::sync_job { BLOCK }	506	=item cf::sync_job { BLOCK }
324		507
325	The design of Crossfire TRT requires that the main coroutine ($Coro::main)	508	The design of Deliantra requires that the main coroutine ($Coro::main)
326	is always able to handle events or runnable, as Crossfire TRT is only	509	is always able to handle events or runnable, as Deliantra is only
327	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not	510	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
328	acceptable.	511	acceptable.
329		512
330	If it must be done, put the blocking parts into C<sync_job>. This will run	513	If it must be done, put the blocking parts into C<sync_job>. This will run
331	the given BLOCK in another coroutine while waiting for the result. The	514	the given BLOCK in another coroutine while waiting for the result. The
…		…
335	=cut	518	=cut
336		519
337	sub sync_job(&) {	520	sub sync_job(&) {
338	my ($job) = @_;	521	my ($job) = @_;
339		522
340	if ($Coro::current == $Coro::main) {	523	if (in_main) {
341	my $time = Event::time;	524	my $time = AE::time;
342		525
343	# this is the main coro, too bad, we have to block	526	# this is the main coro, too bad, we have to block
344	# till the operation succeeds, freezing the server :/	527	# till the operation succeeds, freezing the server :/
345		528
346	# TODO: use suspend/resume instead	529	#LOG llevError, Carp::longmess "sync job";#d#
347	# (but this is cancel-safe)	530
348	my $freeze_guard = freeze_mainloop;	531	my $freeze_guard = freeze_mainloop;
349		532
350	my $busy = 1;	533	my $busy = 1;
351	my @res;	534	my @res;
352		535
353	(async {	536	(async {
		537	$Coro::current->desc ("sync job coro");
354	@res = eval { $job->() };	538	@res = eval { $job->() };
355	warn $@ if $@;	539	error $@ if $@;
356	undef $busy;	540	undef $busy;
357	})->prio (Coro::PRIO_MAX);	541	})->prio (Coro::PRIO_MAX);
358		542
359	while ($busy) {	543	while ($busy) {
360	Coro::cede or Event::one_event;	544	if (Coro::nready) {
		545	Coro::cede_notself;
		546	} else {
		547	EV::loop EV::LOOP_ONESHOT;
361	}	548	}
		549	}
362		550
363	$time = Event::time - $time;	551	my $time = AE::time - $time;
364		552
365	LOG llevError | logBacktrace, Carp::longmess "long sync job"
366	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
367
368	$tick_start += $time; # do not account sync jobs to server load	553	$TICK_START += $time; # do not account sync jobs to server load
369		554
370	wantarray ? @res : $res[0]	555	wantarray ? @res : $res[0]
371	} else {	556	} else {
372	# we are in another coroutine, how wonderful, everything just works	557	# we are in another coroutine, how wonderful, everything just works
373		558
…		…
398	=item fork_call { }, $args	583	=item fork_call { }, $args
399		584
400	Executes the given code block with the given arguments in a seperate	585	Executes the given code block with the given arguments in a seperate
401	process, returning the results. Everything must be serialisable with	586	process, returning the results. Everything must be serialisable with
402	Coro::Storable. May, of course, block. Note that the executed sub may	587	Coro::Storable. May, of course, block. Note that the executed sub may
403	never block itself or use any form of Event handling.	588	never block itself or use any form of event handling.
404		589
405	=cut	590	=cut
406		591
407	sub fork_call(&@) {	592	sub fork_call(&@) {
408	my ($cb, @args) = @_;	593	my ($cb, @args) = @_;
409		594
410	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC	595	# we seemingly have to make a local copy of the whole thing,
411	# or die "socketpair: $!";	596	# otherwise perl prematurely frees the stuff :/
412	pipe my $fh1, my $fh2	597	# TODO: investigate and fix (likely this will be rather laborious)
413	or die "pipe: $!";
414		598
415	if (my $pid = fork) {	599	my @res = Coro::Util::fork_eval {
416	close $fh2;
417
418	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
419	$res = Coro::Storable::thaw $res;
420
421	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
422
423	die $$res unless "ARRAY" eq ref $res;
424
425	return wantarray ? @$res : $res->[-1];
426	} else {
427	reset_signals;	600	reset_signals;
428	local $SIG{__WARN__};	601	&$cb
429	local $SIG{__DIE__};	602	}, @args;
430	eval {
431	close $fh1;
432		603
433	my @res = eval { $cb->(@args) };	604	wantarray ? @res : $res[-1]
434	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);	605	}
435	};
436		606
437	warn $@ if $@;	607	sub objinfo {
438	_exit 0;
439	}	608	(
		609	"counter value" => cf::object::object_count,
		610	"objects created" => cf::object::create_count,
		611	"objects destroyed" => cf::object::destroy_count,
		612	"freelist size" => cf::object::free_count,
		613	"allocated objects" => cf::object::objects_size,
		614	"active objects" => cf::object::actives_size,
		615	)
		616	}
		617
		618	=item $coin = coin_from_name $name
		619
		620	=cut
		621
		622	our %coin_alias = (
		623	"silver" => "silvercoin",
		624	"silvercoin" => "silvercoin",
		625	"silvercoins" => "silvercoin",
		626	"gold" => "goldcoin",
		627	"goldcoin" => "goldcoin",
		628	"goldcoins" => "goldcoin",
		629	"platinum" => "platinacoin",
		630	"platinumcoin" => "platinacoin",
		631	"platinumcoins" => "platinacoin",
		632	"platina" => "platinacoin",
		633	"platinacoin" => "platinacoin",
		634	"platinacoins" => "platinacoin",
		635	"royalty" => "royalty",
		636	"royalties" => "royalty",
		637	);
		638
		639	sub coin_from_name($) {
		640	$coin_alias{$_[0]}
		641	? cf::arch::find $coin_alias{$_[0]}
		642	: undef
440	}	643	}
441		644
442	=item $value = cf::db_get $family => $key	645	=item $value = cf::db_get $family => $key
443		646
444	Returns a single value from the environment database.	647	Returns a single value from the environment database.
…		…
446	=item cf::db_put $family => $key => $value	649	=item cf::db_put $family => $key => $value
447		650
448	Stores the given C<$value> in the family. It can currently store binary	651	Stores the given C<$value> in the family. It can currently store binary
449	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).	652	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
450		653
		654	=item $db = cf::db_table "name"
		655
		656	Create and/or open a new database table. The string must not be "db" and must be unique
		657	within each server.
		658
451	=cut	659	=cut
		660
		661	sub db_table($) {
		662	cf::error "db_get called from main context"
		663	if $Coro::current == $Coro::main;
		664
		665	my ($name) = @_;
		666	my $db = BDB::db_create $DB_ENV;
		667
		668	eval {
		669	$db->set_flags (BDB::CHKSUM);
		670
		671	utf8::encode $name;
		672	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		673	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		674	cf::cleanup "db_open(db): $!" if $!;
		675	};
		676	cf::cleanup "db_open(db): $@" if $@;
		677
		678	$db
		679	}
452		680
453	our $DB;	681	our $DB;
454		682
455	sub db_init {	683	sub db_init {
456	unless ($DB) {	684	$DB ||= db_table "db";
457	$DB = BDB::db_create $DB_ENV;
458
459	cf::sync_job {
460	eval {
461	$DB->set_flags (BDB::CHKSUM);
462
463	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
464	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
465	cf::cleanup "db_open(db): $!" if $!;
466	};
467	cf::cleanup "db_open(db): $@" if $@;
468	};
469	}
470	}	685	}
471		686
472	sub db_get($$) {	687	sub db_get($$) {
473	my $key = "$_[0]/$_[1]";	688	my $key = "$_[0]/$_[1]";
474		689
475	cf::sync_job {	690	cf::error "db_get called from main context"
		691	if $Coro::current == $Coro::main;
		692
476	BDB::db_get $DB, undef, $key, my $data;	693	BDB::db_get $DB, undef, $key, my $data;
477		694
478	$! ? ()	695	$! ? ()
479	: $data	696	: $data
480	}
481	}	697	}
482		698
483	sub db_put($$$) {	699	sub db_put($$$) {
484	BDB::dbreq_pri 4;	700	BDB::dbreq_pri 4;
485	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };	701	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
…		…
524	if (1) {	740	if (1) {
525	$md5 =	741	$md5 =
526	join "\x00",	742	join "\x00",
527	$processversion,	743	$processversion,
528	map {	744	map {
529	Coro::cede;	745	cf::cede_to_tick;
530	($src->[$_], Digest::MD5::md5_hex $data[$_])	746	($src->[$_], Digest::MD5::md5_hex $data[$_])
531	} 0.. $#$src;	747	} 0.. $#$src;
532		748
533		749
534	my $dbmd5 = db_get cache => "$id/md5";	750	my $dbmd5 = db_get cache => "$id/md5";
…		…
541		757
542	my $t1 = Time::HiRes::time;	758	my $t1 = Time::HiRes::time;
543	my $data = $process->(\@data);	759	my $data = $process->(\@data);
544	my $t2 = Time::HiRes::time;	760	my $t2 = Time::HiRes::time;
545		761
546	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";	762	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
547		763
548	db_put cache => "$id/data", $data;	764	db_put cache => "$id/data", $data;
549	db_put cache => "$id/md5" , $md5;	765	db_put cache => "$id/md5" , $md5;
550	db_put cache => "$id/meta", $meta;	766	db_put cache => "$id/meta", $meta;
551		767
…		…
561		777
562	=cut	778	=cut
563		779
564	sub datalog($@) {	780	sub datalog($@) {
565	my ($type, %kv) = @_;	781	my ($type, %kv) = @_;
566	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });	782	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
567	}	783	}
568		784
569	=back	785	=back
570		786
571	=cut	787	=cut
572		788
573	#############################################################################	789	#############################################################################
574		790
575	=head2 ATTACHABLE OBJECTS	791	=head2 ATTACHABLE OBJECTS
576		792
577	Many objects in crossfire are so-called attachable objects. That means you can	793	Many objects in deliantra are so-called attachable objects. That means you can
578	attach callbacks/event handlers (a collection of which is called an "attachment")	794	attach callbacks/event handlers (a collection of which is called an "attachment")
579	to it. All such attachable objects support the following methods.	795	to it. All such attachable objects support the following methods.
580		796
581	In the following description, CLASS can be any of C<global>, C<object>	797	In the following description, CLASS can be any of C<global>, C<object>
582	C<player>, C<client> or C<map> (i.e. the attachable objects in	798	C<player>, C<client> or C<map> (i.e. the attachable objects in
583	Crossfire TRT).	799	Deliantra).
584		800
585	=over 4	801	=over 4
586		802
587	=item $attachable->attach ($attachment, key => $value...)	803	=item $attachable->attach ($attachment, key => $value...)
588		804
…		…
632	=item cf::CLASS::attachment $name, ...	848	=item cf::CLASS::attachment $name, ...
633		849
634	Register an attachment by C<$name> through which attachable objects of the	850	Register an attachment by C<$name> through which attachable objects of the
635	given CLASS can refer to this attachment.	851	given CLASS can refer to this attachment.
636		852
637	Some classes such as crossfire maps and objects can specify attachments	853	Some classes such as deliantra maps and objects can specify attachments
638	that are attached at load/instantiate time, thus the need for a name.	854	that are attached at load/instantiate time, thus the need for a name.
639		855
640	These calls expect any number of the following handler/hook descriptions:	856	These calls expect any number of the following handler/hook descriptions:
641		857
642	=over 4	858	=over 4
…		…
766		982
767	} elsif (exists $cb_id{$type}) {	983	} elsif (exists $cb_id{$type}) {
768	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	984	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
769		985
770	} elsif (ref $type) {	986	} elsif (ref $type) {
771	warn "attaching objects not supported, ignoring.\n";	987	error "attaching objects not supported, ignoring.\n";
772		988
773	} else {	989	} else {
774	shift @arg;	990	shift @arg;
775	warn "attach argument '$type' not supported, ignoring.\n";	991	error "attach argument '$type' not supported, ignoring.\n";
776	}	992	}
777	}	993	}
778	}	994	}
779		995
780	sub _object_attach {	996	sub _object_attach {
…		…
790	_attach $registry, $klass, @attach;	1006	_attach $registry, $klass, @attach;
791	}	1007	}
792		1008
793	$obj->{$name} = \%arg;	1009	$obj->{$name} = \%arg;
794	} else {	1010	} else {
795	warn "object uses attachment '$name' which is not available, postponing.\n";	1011	info "object uses attachment '$name' which is not available, postponing.\n";
796	}	1012	}
797		1013
798	$obj->{_attachment}{$name} = undef;	1014	$obj->{_attachment}{$name} = undef;
799	}	1015	}
800		1016
…		…
840	";	1056	";
841	die if $@;	1057	die if $@;
842	}	1058	}
843		1059
844	our $override;	1060	our $override;
845	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1061	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
846		1062
847	sub override {	1063	sub override {
848	$override = 1;	1064	$override = 1;
849	@invoke_results = ();	1065	@INVOKE_RESULTS = (@_);
850	}	1066	}
851		1067
852	sub do_invoke {	1068	sub do_invoke {
853	my $event = shift;	1069	my $event = shift;
854	my $callbacks = shift;	1070	my $callbacks = shift;
855		1071
856	@invoke_results = ();	1072	@INVOKE_RESULTS = ();
857		1073
858	local $override;	1074	local $override;
859		1075
860	for (@$callbacks) {	1076	for (@$callbacks) {
861	eval { &{$_->[1]} };	1077	eval { &{$_->[1]} };
862		1078
863	if ($@) {	1079	if ($@) {
864	warn "$@";
865	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1080	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
866	override;	1081	override;
867	}	1082	}
868		1083
869	return 1 if $override;	1084	return 1 if $override;
870	}	1085	}
871		1086
872	0	1087	0
873	}	1088	}
874		1089
875	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1090	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
876		1091
877	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1092	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
878		1093
879	Generate an object-specific event with the given arguments.	1094	Generate an object-specific event with the given arguments.
880		1095
881	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1096	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
882	removed in future versions), and there is no public API to access override	1097	removed in future versions), and there is no public API to access override
883	results (if you must, access C<@cf::invoke_results> directly).	1098	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
884		1099
885	=back	1100	=back
886		1101
887	=cut	1102	=cut
888		1103
889	#############################################################################	1104	#############################################################################
890	# object support	1105	# object support
		1106
		1107	sub _object_equal($$);
		1108	sub _object_equal($$) {
		1109	my ($a, $b) = @_;
		1110
		1111	return 0 unless (ref $a) eq (ref $b);
		1112
		1113	if ("HASH" eq ref $a) {
		1114	my @ka = keys %$a;
		1115	my @kb = keys %$b;
		1116
		1117	return 0 if @ka != @kb;
		1118
		1119	for (0 .. $#ka) {
		1120	return 0 unless $ka[$_] eq $kb[$_];
		1121	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1122	}
		1123
		1124	} elsif ("ARRAY" eq ref $a) {
		1125
		1126	return 0 if @$a != @$b;
		1127
		1128	for (0 .. $#$a) {
		1129	return 0 unless _object_equal $a->[$_], $b->[$_];
		1130	}
		1131
		1132	} elsif ($a ne $b) {
		1133	return 0;
		1134	}
		1135
		1136	1
		1137	}
		1138
		1139	our $SLOW_MERGES;#d#
		1140	sub _can_merge {
		1141	my ($ob1, $ob2) = @_;
		1142
		1143	++$SLOW_MERGES;#d#
		1144
		1145	# we do the slow way here
		1146	return _object_equal $ob1, $ob2
		1147	}
891		1148
892	sub reattach {	1149	sub reattach {
893	# basically do the same as instantiate, without calling instantiate	1150	# basically do the same as instantiate, without calling instantiate
894	my ($obj) = @_;	1151	my ($obj) = @_;
895		1152
		1153	# no longer needed after getting rid of delete_package?
896	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1154	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
897		1155
898	my $registry = $obj->registry;	1156	my $registry = $obj->registry;
899		1157
900	@$registry = ();	1158	@$registry = ();
901		1159
…		…
906	for (@$attach) {	1164	for (@$attach) {
907	my ($klass, @attach) = @$_;	1165	my ($klass, @attach) = @$_;
908	_attach $registry, $klass, @attach;	1166	_attach $registry, $klass, @attach;
909	}	1167	}
910	} else {	1168	} else {
911	warn "object uses attachment '$name' that is not available, postponing.\n";	1169	info "object uses attachment '$name' that is not available, postponing.\n";
912	}	1170	}
913	}	1171	}
914	}	1172	}
915		1173
916	cf::attachable->attach (	1174	cf::attachable->attach (
917	prio => -1000000,	1175	prio => -1000000,
918	on_instantiate => sub {	1176	on_instantiate => sub {
919	my ($obj, $data) = @_;	1177	my ($obj, $data) = @_;
920		1178
921	$data = from_json $data;	1179	$data = decode_json $data;
922		1180
923	for (@$data) {	1181	for (@$data) {
924	my ($name, $args) = @$_;	1182	my ($name, $args) = @$_;
925		1183
926	$obj->attach ($name, %{$args || {} });	1184	$obj->attach ($name, %{$args || {} });
…		…
942	sub object_freezer_save {	1200	sub object_freezer_save {
943	my ($filename, $rdata, $objs) = @_;	1201	my ($filename, $rdata, $objs) = @_;
944		1202
945	sync_job {	1203	sync_job {
946	if (length $$rdata) {	1204	if (length $$rdata) {
		1205	utf8::decode (my $decname = $filename);
947	warn sprintf "saving %s (%d,%d)\n",	1206	trace sprintf "saving %s (%d,%d)\n",
948	$filename, length $$rdata, scalar @$objs;	1207	$decname, length $$rdata, scalar @$objs
		1208	if $VERBOSE_IO;
949		1209
950	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1210	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
951	chmod SAVE_MODE, $fh;	1211	aio_chmod $fh, SAVE_MODE;
952	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1212	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
953	aio_fsync $fh if $cf::USE_FSYNC;	1213	if ($cf::USE_FSYNC) {
		1214	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;
		1215	aio_fsync $fh;
		1216	}
954	close $fh;	1217	aio_close $fh;
955		1218
956	if (@$objs) {	1219	if (@$objs) {
957	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1220	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
958	chmod SAVE_MODE, $fh;	1221	aio_chmod $fh, SAVE_MODE;
959	my $data = Storable::nfreeze { version => 1, objs => $objs };	1222	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
960	aio_write $fh, 0, (length $data), $data, 0;	1223	aio_write $fh, 0, (length $data), $data, 0;
961	aio_fsync $fh if $cf::USE_FSYNC;	1224	if ($cf::USE_FSYNC) {
		1225	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;
		1226	aio_fsync $fh;
		1227	}
962	close $fh;	1228	aio_close $fh;
963	aio_rename "$filename.pst~", "$filename.pst";	1229	aio_rename "$filename.pst~", "$filename.pst";
964	}	1230	}
965	} else {	1231	} else {
966	aio_unlink "$filename.pst";	1232	aio_unlink "$filename.pst";
967	}	1233	}
968		1234
969	aio_rename "$filename~", $filename;	1235	aio_rename "$filename~", $filename;
		1236
		1237	$filename =~ s%/[^/]+$%%;
		1238	aio_pathsync $filename if $cf::USE_FSYNC;
970	} else {	1239	} else {
971	warn "FATAL: $filename~: $!\n";	1240	error "unable to save objects: $filename~: $!\n";
972	}	1241	}
973	} else {	1242	} else {
974	aio_unlink $filename;	1243	aio_unlink $filename;
975	aio_unlink "$filename.pst";	1244	aio_unlink "$filename.pst";
976	}	1245	}
977	}	1246	};
978	}	1247	}
979		1248
980	sub object_freezer_as_string {	1249	sub object_freezer_as_string {
981	my ($rdata, $objs) = @_;	1250	my ($rdata, $objs) = @_;
982		1251
…		…
994	or return;	1263	or return;
995		1264
996	unless (aio_stat "$filename.pst") {	1265	unless (aio_stat "$filename.pst") {
997	(aio_load "$filename.pst", $av) >= 0	1266	(aio_load "$filename.pst", $av) >= 0
998	or return;	1267	or return;
		1268
999	$av = eval { (Storable::thaw $av)->{objs} };	1269	my $st = eval { Coro::Storable::thaw $av };
		1270	$av = $st->{objs};
1000	}	1271	}
1001		1272
		1273	utf8::decode (my $decname = $filename);
1002	warn sprintf "loading %s (%d)\n",	1274	trace sprintf "loading %s (%d,%d)\n",
1003	$filename, length $data, scalar @{$av || []};	1275	$decname, length $data, scalar @{$av || []}
		1276	if $VERBOSE_IO;
		1277
1004	return ($data, $av);	1278	($data, $av)
1005	}	1279	}
1006		1280
1007	=head2 COMMAND CALLBACKS	1281	=head2 COMMAND CALLBACKS
1008		1282
1009	=over 4	1283	=over 4
…		…
1029	push @{ $COMMAND{$name} }, [$caller, $cb];	1303	push @{ $COMMAND{$name} }, [$caller, $cb];
1030	}	1304	}
1031		1305
1032	=item cf::register_extcmd $name => \&callback($pl,$packet);	1306	=item cf::register_extcmd $name => \&callback($pl,$packet);
1033		1307
1034	Register a callback fro execution when the client sends an extcmd packet.	1308	Register a callback for execution when the client sends an (synchronous)
		1309	extcmd packet. Ext commands will be processed in the order they are
		1310	received by the server, like other user commands. The first argument is
		1311	the logged-in player. Ext commands can only be processed after a player
		1312	has logged in successfully.
1035		1313
1036	If the callback returns something, it is sent back as if reply was being	1314	If the callback returns something, it is sent back as if reply was being
1037	called.	1315	called.
1038		1316
		1317	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1318
		1319	Register a callback for execution when the client sends an (asynchronous)
		1320	exticmd packet. Exti commands are processed by the server as soon as they
		1321	are received, i.e. out of order w.r.t. other commands. The first argument
		1322	is a client socket. Exti commands can be received anytime, even before
		1323	log-in.
		1324
		1325	If the callback returns something, it is sent back as if reply was being
		1326	called.
		1327
1039	=cut	1328	=cut
1040		1329
1041	sub register_extcmd {	1330	sub register_extcmd {
1042	my ($name, $cb) = @_;	1331	my ($name, $cb) = @_;
1043		1332
1044	$EXTCMD{$name} = $cb;	1333	$EXTCMD{$name} = $cb;
1045	}	1334	}
1046		1335
		1336	sub register_exticmd {
		1337	my ($name, $cb) = @_;
		1338
		1339	$EXTICMD{$name} = $cb;
		1340	}
		1341
		1342	use File::Glob ();
		1343
1047	cf::player->attach (	1344	cf::player->attach (
1048	on_command => sub {	1345	on_unknown_command => sub {
1049	my ($pl, $name, $params) = @_;	1346	my ($pl, $name, $params) = @_;
1050		1347
1051	my $cb = $COMMAND{$name}	1348	my $cb = $COMMAND{$name}
1052	or return;	1349	or return;
1053		1350
…		…
1058	cf::override;	1355	cf::override;
1059	},	1356	},
1060	on_extcmd => sub {	1357	on_extcmd => sub {
1061	my ($pl, $buf) = @_;	1358	my ($pl, $buf) = @_;
1062		1359
1063	my $msg = eval { from_json $buf };	1360	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
1064		1361
1065	if (ref $msg) {	1362	if (ref $msg) {
		1363	my ($type, $reply, @payload) =
		1364	"ARRAY" eq ref $msg
		1365	? @$msg
		1366	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1367
		1368	my @reply;
		1369
1066	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1370	if (my $cb = $EXTCMD{$type}) {
1067	if (my %reply = $cb->($pl, $msg)) {	1371	@reply = $cb->($pl, @payload);
1068	$pl->ext_reply ($msg->{msgid}, %reply);
1069	}
1070	}	1372	}
		1373
		1374	$pl->ext_reply ($reply, @reply)
		1375	if $reply;
		1376
1071	} else {	1377	} else {
1072	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1378	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
1073	}	1379	}
1074		1380
1075	cf::override;	1381	cf::override;
1076	},	1382	},
1077	);	1383	);
1078		1384
		1385	# "readahead" all extensions
		1386	sub cache_extensions {
		1387	my $grp = IO::AIO::aio_group;
		1388
		1389	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
		1390	for (grep /\.ext$/, @{$_[0]}) {
		1391	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
		1392	}
		1393	};
		1394
		1395	$grp
		1396	}
		1397
1079	sub load_extensions {	1398	sub load_extensions {
		1399	info "loading extensions...";
		1400
1080	cf::sync_job {	1401	cf::sync_job {
1081	my %todo;	1402	my %todo;
1082		1403
1083	for my $path (<$LIBDIR/*.ext>) {	1404	for my $path (<$LIBDIR/*.ext>) {
1084	next unless -r $path;	1405	next unless -r $path;
…		…
1102		1423
1103	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }	1424	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
1104	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;	1425	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
1105		1426
1106	$ext{source} =	1427	$ext{source} =
1107	"package $pkg; use strict; use utf8;\n"	1428	"package $pkg; use common::sense;\n"
1108	. "#line 1 \"$path\"\n{\n"	1429	. "#line 1 \"$path\"\n{\n"
1109	. $source	1430	. $source
1110	. "\n};\n1";	1431	. "\n};\n1";
1111		1432
1112	$todo{$base} = \%ext;	1433	$todo{$base} = \%ext;
1113	}	1434	}
1114		1435
		1436	my $pass = 0;
1115	my %done;	1437	my %done;
1116	while (%todo) {	1438	while (%todo) {
1117	my $progress;	1439	my $progress;
1118		1440
		1441	++$pass;
		1442
		1443	ext:
1119	while (my ($k, $v) = each %todo) {	1444	while (my ($k, $v) = each %todo) {
1120	for (split /,\s*/, $v->{meta}{depends}) {	1445	for (split /,\s*/, $v->{meta}{depends}) {
1121	goto skip	1446	next ext
1122	unless exists $done{$_};	1447	unless exists $done{$_};
1123	}	1448	}
1124		1449
1125	warn "... loading '$k' into '$v->{pkg}'\n";	1450	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
1126		1451
1127	unless (eval $v->{source}) {	1452	my $active = eval $v->{source};
		1453
		1454	if (length $@) {
1128	my $msg = $@ ? "$v->{path}: $@\n"	1455	error "$v->{path}: $@\n";
1129	: "$v->{base}: extension inactive.\n";	1456	undef $@; # work around perl 5.10.0 utf-8 caching bug
1130		1457
		1458	cf::cleanup "mandatory extension '$k' failed to load, exiting."
1131	if (exists $v->{meta}{mandatory}) {	1459	if exists $v->{meta}{mandatory};
1132	warn $msg;	1460
1133	warn "mandatory extension failed to load, exiting.\n";	1461	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
1134	exit 1;	1462	delete $todo{$k};
1135	}	1463	} else {
1136		1464	$done{$k} = delete $todo{$k};
1137	warn $msg;	1465	push @EXTS, $v->{pkg};
		1466	$progress = 1;
		1467
		1468	info "$v->{base}: extension inactive.\n"
		1469	unless $active;
1138	}	1470	}
1139
1140	$done{$k} = delete $todo{$k};
1141	push @EXTS, $v->{pkg};
1142	$progress = 1;
1143	}	1471	}
1144		1472
1145	skip:	1473	unless ($progress) {
1146	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"	1474	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
1147	unless $progress;	1475
		1476	while (my ($k, $v) = each %todo) {
		1477	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1478	if exists $v->{meta}{mandatory};
		1479	}
		1480	}
1148	}	1481	}
1149	};	1482	};
1150	}	1483	}
1151		1484
1152	#############################################################################	1485	#############################################################################
1153		1486
1154	=back	1487	=back
1155		1488
1156	=head2 CORE EXTENSIONS	1489	=head2 CORE EXTENSIONS
1157		1490
1158	Functions and methods that extend core crossfire objects.	1491	Functions and methods that extend core deliantra objects.
1159		1492
1160	=cut	1493	=cut
1161		1494
1162	package cf::player;	1495	package cf::player;
1163		1496
1164	use Coro::AIO;	1497	use Coro::AIO;
1165		1498
1166	=head3 cf::player	1499	=head3 cf::player
1167		1500
1168	=over 4	1501	=over 4
		1502
		1503	=item cf::player::num_playing
		1504
		1505	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1506
		1507	=cut
		1508
		1509	sub num_playing {
		1510	scalar grep
		1511	$_->ob->map
		1512	&& !$_->hidden
		1513	&& !$_->ob->flag (cf::FLAG_WIZ),
		1514	cf::player::list
		1515	}
1169		1516
1170	=item cf::player::find $login	1517	=item cf::player::find $login
1171		1518
1172	Returns the given player object, loading it if necessary (might block).	1519	Returns the given player object, loading it if necessary (might block).
1173		1520
…		…
1192		1539
1193	sub exists($) {	1540	sub exists($) {
1194	my ($login) = @_;	1541	my ($login) = @_;
1195		1542
1196	$cf::PLAYER{$login}	1543	$cf::PLAYER{$login}
1197	or cf::sync_job { !aio_stat path $login }	1544	or !aio_stat path $login
1198	}	1545	}
1199		1546
1200	sub find($) {	1547	sub find($) {
1201	return $cf::PLAYER{$_[0]} || do {	1548	return $cf::PLAYER{$_[0]} || do {
1202	my $login = $_[0];	1549	my $login = $_[0];
…		…
1209	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1556	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1210	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1557	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1211	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1558	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1212	aio_unlink +(playerdir $login) . "/$login.pl";	1559	aio_unlink +(playerdir $login) . "/$login.pl";
1213		1560
1214	my $pl = load_pl path $login	1561	my $f = new_from_file cf::object::thawer path $login
1215	or return;	1562	or return;
		1563
		1564	my $pl = cf::player::load_pl $f
		1565	or return;
		1566
		1567	local $cf::PLAYER_LOADING{$login} = $pl;
		1568	$f->resolve_delayed_derefs;
1216	$cf::PLAYER{$login} = $pl	1569	$cf::PLAYER{$login} = $pl
1217	}	1570	}
1218	}	1571	}
1219	}	1572	}
		1573
		1574	cf::player->attach (
		1575	on_load => sub {
		1576	my ($pl, $path) = @_;
		1577
		1578	# restore slots saved in save, below
		1579	my $slots = delete $pl->{_slots};
		1580
		1581	$pl->ob->current_weapon ($slots->[0]);
		1582	$pl->combat_ob ($slots->[1]);
		1583	$pl->ranged_ob ($slots->[2]);
		1584	},
		1585	);
1220		1586
1221	sub save($) {	1587	sub save($) {
1222	my ($pl) = @_;	1588	my ($pl) = @_;
1223		1589
1224	return if $pl->{deny_save};	1590	return if $pl->{deny_save};
…		…
1229	return if $pl->{deny_save};	1595	return if $pl->{deny_save};
1230		1596
1231	aio_mkdir playerdir $pl, 0770;	1597	aio_mkdir playerdir $pl, 0770;
1232	$pl->{last_save} = $cf::RUNTIME;	1598	$pl->{last_save} = $cf::RUNTIME;
1233		1599
		1600	cf::get_slot 0.01;
		1601
		1602	# save slots, to be restored later
		1603	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1604
1234	$pl->save_pl ($path);	1605	$pl->save_pl ($path);
1235	Coro::cede;	1606	cf::cede_to_tick;
1236	}	1607	}
1237		1608
1238	sub new($) {	1609	sub new($) {
1239	my ($login) = @_;	1610	my ($login) = @_;
1240		1611
…		…
1246	$cf::PLAYER{$login} = $self;	1617	$cf::PLAYER{$login} = $self;
1247		1618
1248	$self	1619	$self
1249	}	1620	}
1250		1621
		1622	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1623
		1624	=cut
		1625
		1626	sub send_msg {
		1627	my $ns = shift->ns
		1628	or return;
		1629	$ns->send_msg (@_);
		1630	}
		1631
1251	=item $pl->quit_character	1632	=item $pl->quit_character
1252		1633
1253	Nukes the player without looking back. If logged in, the connection will	1634	Nukes the player without looking back. If logged in, the connection will
1254	be destroyed. May block for a long time.	1635	be destroyed. May block for a long time.
1255		1636
…		…
1259	my ($pl) = @_;	1640	my ($pl) = @_;
1260		1641
1261	my $name = $pl->ob->name;	1642	my $name = $pl->ob->name;
1262		1643
1263	$pl->{deny_save} = 1;	1644	$pl->{deny_save} = 1;
1264	$pl->password ("*"); # this should lock out the player until we nuked the dir	1645	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1265		1646
1266	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1647	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1267	$pl->deactivate;	1648	$pl->deactivate;
		1649	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1268	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1650	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1269	$pl->ns->destroy if $pl->ns;	1651	$pl->ns->destroy if $pl->ns;
1270		1652
1271	my $path = playerdir $pl;	1653	my $path = playerdir $pl;
1272	my $temp = "$path~$cf::RUNTIME~deleting~";	1654	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1308	or return [];	1690	or return [];
1309		1691
1310	my @logins;	1692	my @logins;
1311		1693
1312	for my $login (@$dirs) {	1694	for my $login (@$dirs) {
		1695	my $path = path $login;
		1696
		1697	# a .pst is a dead give-away for a valid player
		1698	# if no pst file found, open and chekc for blocked users
		1699	if (aio_stat "$path.pst") {
1313	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1700	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1314	aio_read $fh, 0, 512, my $buf, 0 or next;	1701	aio_read $fh, 0, 512, my $buf, 0 or next;
1315	$buf !~ /^password -------------$/m or next; # official not-valid tag	1702	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1703	}
1316		1704
1317	utf8::decode $login;	1705	utf8::decode $login;
1318	push @logins, $login;	1706	push @logins, $login;
1319	}	1707	}
1320		1708
1321	\@logins	1709	\@logins
1322	}	1710	}
1323		1711
1324	=item $player->maps	1712	=item $player->maps
		1713
		1714	=item cf::player::maps $login
1325		1715
1326	Returns an arrayref of map paths that are private for this	1716	Returns an arrayref of map paths that are private for this
1327	player. May block.	1717	player. May block.
1328		1718
1329	=cut	1719	=cut
…		…
1347	}	1737	}
1348		1738
1349	\@paths	1739	\@paths
1350	}	1740	}
1351		1741
		1742	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1743
		1744	Expand deliantra pod fragments into protocol xml.
		1745
1352	=item $player->ext_reply ($msgid, %msg)	1746	=item $player->ext_reply ($msgid, @msg)
1353		1747
1354	Sends an ext reply to the player.	1748	Sends an ext reply to the player.
1355		1749
1356	=cut	1750	=cut
1357		1751
1358	sub ext_reply($$%) {	1752	sub ext_reply($$@) {
1359	my ($self, $id, %msg) = @_;	1753	my ($self, $id, @msg) = @_;
1360		1754
1361	$msg{msgid} = $id;	1755	$self->ns->ext_reply ($id, @msg)
1362
1363	$self->send ("ext " . cf::to_json \%msg);
1364	}	1756	}
1365		1757
1366	=item $player->ext_event ($type, %msg)	1758	=item $player->ext_msg ($type, @msg)
1367		1759
1368	Sends an ext event to the client.	1760	Sends an ext event to the client.
1369		1761
1370	=cut	1762	=cut
1371		1763
1372	sub ext_event($$%) {	1764	sub ext_msg($$@) {
1373	my ($self, $type, %msg) = @_;	1765	my ($self, $type, @msg) = @_;
1374		1766
1375	$self->ns->ext_event ($type, %msg);	1767	$self->ns->ext_msg ($type, @msg);
1376	}	1768	}
1377		1769
1378	=head3 cf::region	1770	=head3 cf::region
1379		1771
1380	=over 4	1772	=over 4
…		…
1390	=cut	1782	=cut
1391		1783
1392	sub find_by_path($) {	1784	sub find_by_path($) {
1393	my ($path) = @_;	1785	my ($path) = @_;
1394		1786
		1787	$path =~ s/^~[^\/]*//; # skip ~login
		1788
1395	my ($match, $specificity);	1789	my ($match, $specificity);
1396		1790
1397	for my $region (list) {	1791	for my $region (list) {
1398	if ($region->match && $path =~ $region->match) {	1792	if ($region->{match} && $path =~ $region->{match}) {
1399	($match, $specificity) = ($region, $region->specificity)	1793	($match, $specificity) = ($region, $region->specificity)
1400	if $region->specificity > $specificity;	1794	if $region->specificity > $specificity;
1401	}	1795	}
1402	}	1796	}
1403		1797
…		…
1424	our $MAX_RESET = 3600;	1818	our $MAX_RESET = 3600;
1425	our $DEFAULT_RESET = 3000;	1819	our $DEFAULT_RESET = 3000;
1426		1820
1427	sub generate_random_map {	1821	sub generate_random_map {
1428	my ($self, $rmp) = @_;	1822	my ($self, $rmp) = @_;
		1823
		1824	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1825
1429	# mit "rum" bekleckern, nicht	1826	# mit "rum" bekleckern, nicht
1430	$self->_create_random_map (	1827	$self->_create_random_map (
1431	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1828	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1432	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1829	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1433	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1830	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1434	$rmp->{exit_on_final_map},	1831	$rmp->{exit_on_final_map},
1435	$rmp->{xsize}, $rmp->{ysize},	1832	$rmp->{xsize}, $rmp->{ysize},
1436	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1833	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1437	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1834	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1452		1849
1453	sub register {	1850	sub register {
1454	my (undef, $regex, $prio) = @_;	1851	my (undef, $regex, $prio) = @_;
1455	my $pkg = caller;	1852	my $pkg = caller;
1456		1853
1457	no strict;
1458	push @{"$pkg\::ISA"}, __PACKAGE__;	1854	push @{"$pkg\::ISA"}, __PACKAGE__;
1459		1855
1460	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	1856	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1461	}	1857	}
1462		1858
1463	# also paths starting with '/'	1859	# also paths starting with '/'
1464	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	1860	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1465		1861
1466	sub thawer_merge {	1862	sub thawer_merge {
1467	my ($self, $merge) = @_;	1863	my ($self, $merge) = @_;
1468		1864
1469	# we have to keep some variables in memory intact	1865	# we have to keep some variables in memory intact
…		…
1523	$self->init; # pass $1 etc.	1919	$self->init; # pass $1 etc.
1524	return $self;	1920	return $self;
1525	}	1921	}
1526	}	1922	}
1527		1923
1528	Carp::carp "unable to resolve path '$path' (base '$base').";	1924	Carp::cluck "unable to resolve path '$path' (base '$base').";
1529	()	1925	()
1530	}	1926	}
1531		1927
1532	sub init {	1928	sub init {
1533	my ($self) = @_;	1929	my ($self) = @_;
…		…
1555		1951
1556	# the temporary/swap location	1952	# the temporary/swap location
1557	sub save_path {	1953	sub save_path {
1558	my ($self) = @_;	1954	my ($self) = @_;
1559		1955
1560	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1956	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1561	"$TMPDIR/$path.map"	1957	"$TMPDIR/$path.map"
1562	}	1958	}
1563		1959
1564	# the unique path, undef == no special unique path	1960	# the unique path, undef == no special unique path
1565	sub uniq_path {	1961	sub uniq_path {
1566	my ($self) = @_;	1962	my ($self) = @_;
1567		1963
1568	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1964	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1569	"$UNIQUEDIR/$path"	1965	"$UNIQUEDIR/$path"
1570	}
1571
1572	# and all this just because we cannot iterate over
1573	# all maps in C++...
1574	sub change_all_map_light {
1575	my ($change) = @_;
1576
1577	$_->change_map_light ($change)
1578	for grep $_->outdoor, values %cf::MAP;
1579	}	1966	}
1580		1967
1581	sub decay_objects {	1968	sub decay_objects {
1582	my ($self) = @_;	1969	my ($self) = @_;
1583		1970
…		…
1596		1983
1597	sub load_header_from($) {	1984	sub load_header_from($) {
1598	my ($self, $path) = @_;	1985	my ($self, $path) = @_;
1599		1986
1600	utf8::encode $path;	1987	utf8::encode $path;
1601	#aio_open $path, O_RDONLY, 0	1988	my $f = new_from_file cf::object::thawer $path
1602	# or return;
1603
1604	$self->_load_header ($path)
1605	or return;	1989	or return;
		1990
		1991	$self->_load_header ($f)
		1992	or return;
		1993
		1994	local $MAP_LOADING{$self->{path}} = $self;
		1995	$f->resolve_delayed_derefs;
1606		1996
1607	$self->{load_path} = $path;	1997	$self->{load_path} = $path;
1608		1998
1609	1	1999	1
1610	}	2000	}
…		…
1664	sub find {	2054	sub find {
1665	my ($path, $origin) = @_;	2055	my ($path, $origin) = @_;
1666		2056
1667	$path = normalise $path, $origin && $origin->path;	2057	$path = normalise $path, $origin && $origin->path;
1668		2058
		2059	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1669	cf::lock_wait "map_find:$path";	2060	my $guard2 = cf::lock_acquire "map_find:$path";
1670		2061
1671	$cf::MAP{$path} || do {	2062	$cf::MAP{$path} || do {
1672	my $guard = cf::lock_acquire "map_find:$path";
1673	my $map = new_from_path cf::map $path	2063	my $map = new_from_path cf::map $path
1674	or return;	2064	or return;
1675		2065
1676	$map->{last_save} = $cf::RUNTIME;	2066	$map->{last_save} = $cf::RUNTIME;
1677		2067
…		…
1679	or return;	2069	or return;
1680		2070
1681	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)	2071	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1682	# doing this can freeze the server in a sync job, obviously	2072	# doing this can freeze the server in a sync job, obviously
1683	#$cf::WAIT_FOR_TICK->wait;	2073	#$cf::WAIT_FOR_TICK->wait;
		2074	undef $guard2;
		2075	undef $guard1;
1684	$map->reset;	2076	$map->reset;
1685	undef $guard;
1686	return find $path;	2077	return find $path;
1687	}	2078	}
1688		2079
1689	$cf::MAP{$path} = $map	2080	$cf::MAP{$path} = $map
1690	}	2081	}
1691	}	2082	}
1692		2083
1693	sub pre_load { }	2084	sub pre_load { }
1694	sub post_load { }	2085	#sub post_load { } # XS
1695		2086
1696	sub load {	2087	sub load {
1697	my ($self) = @_;	2088	my ($self) = @_;
1698		2089
1699	local $self->{deny_reset} = 1; # loading can take a long time	2090	local $self->{deny_reset} = 1; # loading can take a long time
1700		2091
1701	my $path = $self->{path};	2092	my $path = $self->{path};
1702		2093
1703	{	2094	{
1704	my $guard = cf::lock_acquire "map_load:$path";	2095	my $guard = cf::lock_acquire "map_data:$path";
1705		2096
		2097	return unless $self->valid;
1706	return if $self->in_memory != cf::MAP_SWAPPED;	2098	return unless $self->in_memory == cf::MAP_SWAPPED;
1707		2099
1708	$self->in_memory (cf::MAP_LOADING);	2100	$self->in_memory (cf::MAP_LOADING);
1709		2101
1710	$self->alloc;	2102	$self->alloc;
1711		2103
1712	$self->pre_load;	2104	$self->pre_load;
1713	Coro::cede;	2105	cf::cede_to_tick;
1714		2106
		2107	my $f = new_from_file cf::object::thawer $self->{load_path};
		2108	$f->skip_block;
1715	$self->_load_objects ($self->{load_path}, 1)	2109	$self->_load_objects ($f)
1716	or return;	2110	or return;
1717		2111
1718	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2112	$self->post_load_original
1719	if delete $self->{load_original};	2113	if delete $self->{load_original};
1720		2114
1721	if (my $uniq = $self->uniq_path) {	2115	if (my $uniq = $self->uniq_path) {
1722	utf8::encode $uniq;	2116	utf8::encode $uniq;
1723	if (aio_open $uniq, O_RDONLY, 0) {	2117	unless (aio_stat $uniq) {
		2118	if (my $f = new_from_file cf::object::thawer $uniq) {
1724	$self->clear_unique_items;	2119	$self->clear_unique_items;
1725	$self->_load_objects ($uniq, 0);	2120	$self->_load_objects ($f);
		2121	$f->resolve_delayed_derefs;
		2122	}
1726	}	2123	}
1727	}	2124	}
1728		2125
1729	Coro::cede;	2126	$f->resolve_delayed_derefs;
		2127
		2128	cf::cede_to_tick;
1730	# now do the right thing for maps	2129	# now do the right thing for maps
1731	$self->link_multipart_objects;	2130	$self->link_multipart_objects;
1732	$self->difficulty ($self->estimate_difficulty)	2131	$self->difficulty ($self->estimate_difficulty)
1733	unless $self->difficulty;	2132	unless $self->difficulty;
1734	Coro::cede;	2133	cf::cede_to_tick;
1735		2134
1736	unless ($self->{deny_activate}) {	2135	unless ($self->{deny_activate}) {
1737	$self->decay_objects;	2136	$self->decay_objects;
1738	$self->fix_auto_apply;	2137	$self->fix_auto_apply;
1739	$self->update_buttons;	2138	$self->update_buttons;
1740	Coro::cede;	2139	cf::cede_to_tick;
1741	$self->set_darkness_map;
1742	Coro::cede;
1743	$self->activate;	2140	$self->activate;
1744	}	2141	}
1745		2142
		2143	$self->{last_save} = $cf::RUNTIME;
		2144	$self->last_access ($cf::RUNTIME);
		2145
1746	$self->in_memory (cf::MAP_IN_MEMORY);	2146	$self->in_memory (cf::MAP_ACTIVE);
1747	}	2147	}
1748		2148
1749	$self->post_load;	2149	$self->post_load;
1750	}	2150	}
1751		2151
		2152	# customize the map for a given player, i.e.
		2153	# return the _real_ map. used by e.g. per-player
		2154	# maps to change the path to ~playername/mappath
1752	sub customise_for {	2155	sub customise_for {
1753	my ($self, $ob) = @_;	2156	my ($self, $ob) = @_;
1754		2157
1755	return find "~" . $ob->name . "/" . $self->{path}	2158	return find "~" . $ob->name . "/" . $self->{path}
1756	if $self->per_player;	2159	if $self->per_player;
…		…
1760		2163
1761	$self	2164	$self
1762	}	2165	}
1763		2166
1764	# find and load all maps in the 3x3 area around a map	2167	# find and load all maps in the 3x3 area around a map
1765	sub load_diag {	2168	sub load_neighbours {
1766	my ($map) = @_;	2169	my ($map) = @_;
1767		2170
1768	my @diag; # diagonal neighbours	2171	my @neigh; # diagonal neighbours
1769		2172
1770	for (0 .. 3) {	2173	for (0 .. 3) {
1771	my $neigh = $map->tile_path ($_)	2174	my $neigh = $map->tile_path ($_)
1772	or next;	2175	or next;
1773	$neigh = find $neigh, $map	2176	$neigh = find $neigh, $map
1774	or next;	2177	or next;
1775	$neigh->load;	2178	$neigh->load;
1776		2179
		2180	# now find the diagonal neighbours
		2181	push @neigh,
1777	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2182	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1778	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2183	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1779	}	2184	}
1780		2185
1781	for (@diag) {	2186	for (grep defined $_->[0], @neigh) {
		2187	my ($path, $origin) = @$_;
1782	my $neigh = find @$_	2188	my $neigh = find $path, $origin
1783	or next;	2189	or next;
1784	$neigh->load;	2190	$neigh->load;
1785	}	2191	}
1786	}	2192	}
1787		2193
1788	sub find_sync {	2194	sub find_sync {
1789	my ($path, $origin) = @_;	2195	my ($path, $origin) = @_;
1790		2196
1791	cf::sync_job { find $path, $origin }	2197	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2198	if $Coro::current == $Coro::main;
		2199
		2200	find $path, $origin
1792	}	2201	}
1793		2202
1794	sub do_load_sync {	2203	sub do_load_sync {
1795	my ($map) = @_;	2204	my ($map) = @_;
1796		2205
1797	cf::sync_job { $map->load };	2206	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2207	if $Coro::current == $Coro::main;
		2208
		2209	$map->load;
1798	}	2210	}
1799		2211
1800	our %MAP_PREFETCH;	2212	our %MAP_PREFETCH;
1801	our $MAP_PREFETCHER = undef;	2213	our $MAP_PREFETCHER = undef;
1802		2214
1803	sub find_async {	2215	sub find_async {
1804	my ($path, $origin) = @_;	2216	my ($path, $origin, $load) = @_;
1805		2217
1806	$path = normalise $path, $origin && $origin->{path};	2218	$path = normalise $path, $origin && $origin->{path};
1807		2219
1808	if (my $map = $cf::MAP{$path}) {	2220	if (my $map = $cf::MAP{$path}) {
1809	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2221	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1810	}	2222	}
1811		2223
1812	undef $MAP_PREFETCH{$path};	2224	$MAP_PREFETCH{$path} |= $load;
		2225
1813	$MAP_PREFETCHER ||= cf::async {	2226	$MAP_PREFETCHER ||= cf::async {
		2227	$Coro::current->{desc} = "map prefetcher";
		2228
1814	while (%MAP_PREFETCH) {	2229	while (%MAP_PREFETCH) {
1815	for my $path (keys %MAP_PREFETCH) {	2230	while (my ($k, $v) = each %MAP_PREFETCH) {
1816	my $map = find $path	2231	if (my $map = find $k) {
1817	or next;
1818	$map->load;	2232	$map->load if $v;
		2233	}
1819		2234
1820	delete $MAP_PREFETCH{$path};	2235	delete $MAP_PREFETCH{$k};
1821	}	2236	}
1822	}	2237	}
1823	undef $MAP_PREFETCHER;	2238	undef $MAP_PREFETCHER;
1824	};	2239	};
1825	$MAP_PREFETCHER->prio (6);	2240	$MAP_PREFETCHER->prio (6);
1826		2241
1827	()	2242	()
1828	}	2243	}
1829		2244
		2245	# common code, used by both ->save and ->swapout
1830	sub save {	2246	sub _save {
1831	my ($self) = @_;	2247	my ($self) = @_;
1832
1833	my $lock = cf::lock_acquire "map_data:" . $self->path;
1834		2248
1835	$self->{last_save} = $cf::RUNTIME;	2249	$self->{last_save} = $cf::RUNTIME;
1836		2250
1837	return unless $self->dirty;	2251	return unless $self->dirty;
1838		2252
…		…
1844	return if $self->{deny_save};	2258	return if $self->{deny_save};
1845		2259
1846	local $self->{last_access} = $self->last_access;#d#	2260	local $self->{last_access} = $self->last_access;#d#
1847		2261
1848	cf::async {	2262	cf::async {
		2263	$Coro::current->{desc} = "map player save";
1849	$_->contr->save for $self->players;	2264	$_->contr->save for $self->players;
1850	};	2265	};
		2266
		2267	cf::get_slot 0.02;
1851		2268
1852	if ($uniq) {	2269	if ($uniq) {
1853	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2270	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1854	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2271	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1855	} else {	2272	} else {
1856	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2273	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1857	}	2274	}
1858	}	2275	}
1859		2276
		2277	sub save {
		2278	my ($self) = @_;
		2279
		2280	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2281
		2282	$self->_save;
		2283	}
		2284
1860	sub swap_out {	2285	sub swap_out {
1861	my ($self) = @_;	2286	my ($self) = @_;
1862		2287
1863	# save first because save cedes
1864	$self->save;
1865
1866	my $lock = cf::lock_acquire "map_data:" . $self->path;	2288	my $lock = cf::lock_acquire "map_data:$self->{path}";
1867		2289
		2290	return if $self->in_memory != cf::MAP_ACTIVE;
		2291	return if $self->{deny_save};
1868	return if $self->players;	2292	return if $self->players;
1869	return if $self->in_memory != cf::MAP_IN_MEMORY;
1870	return if $self->{deny_save};
1871		2293
		2294	# first deactivate the map and "unlink" it from the core
		2295	$self->deactivate;
		2296	$_->clear_links_to ($self) for values %cf::MAP;
		2297	$self->in_memory (cf::MAP_SWAPPED);
		2298
		2299	# then atomically save
		2300	$self->_save;
		2301
		2302	# then free the map
1872	$self->clear;	2303	$self->clear;
1873	$self->in_memory (cf::MAP_SWAPPED);
1874	}	2304	}
1875		2305
1876	sub reset_at {	2306	sub reset_at {
1877	my ($self) = @_;	2307	my ($self) = @_;
1878		2308
…		…
1896		2326
1897	my $lock = cf::lock_acquire "map_data:$self->{path}";	2327	my $lock = cf::lock_acquire "map_data:$self->{path}";
1898		2328
1899	return if $self->players;	2329	return if $self->players;
1900		2330
1901	warn "resetting map ", $self->path;	2331	cf::trace "resetting map ", $self->path, "\n";
1902		2332
1903	$self->in_memory (cf::MAP_SWAPPED);	2333	$self->in_memory (cf::MAP_SWAPPED);
1904		2334
1905	# need to save uniques path	2335	# need to save uniques path
1906	unless ($self->{deny_save}) {	2336	unless ($self->{deny_save}) {
…		…
1910	if $uniq;	2340	if $uniq;
1911	}	2341	}
1912		2342
1913	delete $cf::MAP{$self->path};	2343	delete $cf::MAP{$self->path};
1914		2344
		2345	$self->deactivate;
		2346	$_->clear_links_to ($self) for values %cf::MAP;
1915	$self->clear;	2347	$self->clear;
1916
1917	$_->clear_links_to ($self) for values %cf::MAP;
1918		2348
1919	$self->unlink_save;	2349	$self->unlink_save;
1920	$self->destroy;	2350	$self->destroy;
1921	}	2351	}
1922		2352
1923	my $nuke_counter = "aaaa";	2353	my $nuke_counter = "aaaa";
1924		2354
1925	sub nuke {	2355	sub nuke {
1926	my ($self) = @_;	2356	my ($self) = @_;
1927		2357
		2358	{
		2359	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2360
1928	delete $cf::MAP{$self->path};	2361	delete $cf::MAP{$self->path};
1929		2362
1930	$self->unlink_save;	2363	$self->unlink_save;
1931		2364
1932	bless $self, "cf::map";	2365	bless $self, "cf::map::wrap";
1933	delete $self->{deny_reset};	2366	delete $self->{deny_reset};
1934	$self->{deny_save} = 1;	2367	$self->{deny_save} = 1;
1935	$self->reset_timeout (1);	2368	$self->reset_timeout (1);
1936	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2369	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1937		2370
1938	$cf::MAP{$self->path} = $self;	2371	$cf::MAP{$self->path} = $self;
		2372	}
1939		2373
1940	$self->reset; # polite request, might not happen	2374	$self->reset; # polite request, might not happen
1941	}	2375	}
1942		2376
1943	=item $maps = cf::map::tmp_maps	2377	=item $maps = cf::map::tmp_maps
…		…
1985		2419
1986	sub unique_maps() {	2420	sub unique_maps() {
1987	[	2421	[
1988	map {	2422	map {
1989	utf8::decode $_;	2423	utf8::decode $_;
1990	/\.map$/	2424	s/\.map$//; # TODO future compatibility hack
		2425	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2426	? ()
1991	? normalise $_	2427	: normalise $_
1992	: ()
1993	} @{ aio_readdir $UNIQUEDIR or [] }	2428	} @{ aio_readdir $UNIQUEDIR or [] }
1994	]	2429	]
1995	}	2430	}
1996		2431
1997	package cf;	2432	=item cf::map::static_maps
		2433
		2434	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2435	file in the shared directory excluding F</styles> and F</editor>). May
		2436	block.
		2437
		2438	=cut
		2439
		2440	sub static_maps() {
		2441	my @dirs = "";
		2442	my @maps;
		2443
		2444	while (@dirs) {
		2445	my $dir = shift @dirs;
		2446
		2447	next if $dir eq "/styles" || $dir eq "/editor";
		2448
		2449	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2450	or return;
		2451
		2452	for (@$files) {
		2453	s/\.map$// or next;
		2454	utf8::decode $_;
		2455	push @maps, "$dir/$_";
		2456	}
		2457
		2458	push @dirs, map "$dir/$_", @$dirs;
		2459	}
		2460
		2461	\@maps
		2462	}
1998		2463
1999	=back	2464	=back
2000		2465
2001	=head3 cf::object	2466	=head3 cf::object
2002		2467
…		…
2006		2471
2007	=over 4	2472	=over 4
2008		2473
2009	=item $ob->inv_recursive	2474	=item $ob->inv_recursive
2010		2475
2011	Returns the inventory of the object _and_ their inventories, recursively.	2476	Returns the inventory of the object I<and> their inventories, recursively,
		2477	but I<not> the object itself.
2012		2478
2013	=cut	2479	=cut
2014		2480
2015	sub inv_recursive_;	2481	sub inv_recursive_;
2016	sub inv_recursive_ {	2482	sub inv_recursive_ {
…		…
2019		2485
2020	sub inv_recursive {	2486	sub inv_recursive {
2021	inv_recursive_ inv $_[0]	2487	inv_recursive_ inv $_[0]
2022	}	2488	}
2023		2489
		2490	=item $ref = $ob->ref
		2491
		2492	Creates and returns a persistent reference to an object that can be stored as a string.
		2493
		2494	=item $ob = cf::object::deref ($refstring)
		2495
		2496	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2497	even if the object actually exists. May block.
		2498
		2499	=cut
		2500
		2501	sub deref {
		2502	my ($ref) = @_;
		2503
		2504	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2505	my ($uuid, $name) = ($1, $2);
		2506	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2507	or return;
		2508	$pl->ob->uuid eq $uuid
		2509	or return;
		2510
		2511	$pl->ob
		2512	} else {
		2513	warn "$ref: cannot resolve object reference\n";
		2514	undef
		2515	}
		2516	}
		2517
2024	package cf;	2518	package cf;
2025		2519
2026	=back	2520	=back
2027		2521
2028	=head3 cf::object::player	2522	=head3 cf::object::player
…		…
2034	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2528	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
2035	can be C<undef>. Does the right thing when the player is currently in a	2529	can be C<undef>. Does the right thing when the player is currently in a
2036	dialogue with the given NPC character.	2530	dialogue with the given NPC character.
2037		2531
2038	=cut	2532	=cut
		2533
		2534	our $SAY_CHANNEL = {
		2535	id => "say",
		2536	title => "Map",
		2537	reply => "say ",
		2538	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2539	};
		2540
		2541	our $CHAT_CHANNEL = {
		2542	id => "chat",
		2543	title => "Chat",
		2544	reply => "chat ",
		2545	tooltip => "Player chat and shouts, global to the server.",
		2546	};
2039		2547
2040	# rough implementation of a future "reply" method that works	2548	# rough implementation of a future "reply" method that works
2041	# with dialog boxes.	2549	# with dialog boxes.
2042	#TODO: the first argument must go, split into a $npc->reply_to ( method	2550	#TODO: the first argument must go, split into a $npc->reply_to ( method
2043	sub cf::object::player::reply($$$;$) {	2551	sub cf::object::player::reply($$$;$) {
…		…
2050		2558
2051	} else {	2559	} else {
2052	my $pl = $self->contr;	2560	my $pl = $self->contr;
2053		2561
2054	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {	2562	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
2055	my $diag = $pl->{npc_dialog};	2563	my $dialog = $pl->{npc_dialog};
2056	$diag->{pl}->ext_reply (	2564	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
2057	$diag->{id}, msgtype => "reply", msg => $msg, add_topics => []
2058	);
2059		2565
2060	} else {	2566	} else {
2061	$msg = $npc->name . " says: $msg" if $npc;	2567	$msg = $npc->name . " says: $msg" if $npc;
2062	$self->message ($msg, $flags);	2568	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
2063	}	2569	}
2064	}	2570	}
		2571	}
		2572
		2573	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2574
		2575	=cut
		2576
		2577	sub cf::object::send_msg {
		2578	my $pl = shift->contr
		2579	or return;
		2580	$pl->send_msg (@_);
2065	}	2581	}
2066		2582
2067	=item $player_object->may ("access")	2583	=item $player_object->may ("access")
2068		2584
2069	Returns wether the given player is authorized to access resource "access"	2585	Returns wether the given player is authorized to access resource "access"
…		…
2082		2598
2083	=item $player_object->enter_link	2599	=item $player_object->enter_link
2084		2600
2085	Freezes the player and moves him/her to a special map (C<{link}>).	2601	Freezes the player and moves him/her to a special map (C<{link}>).
2086		2602
2087	The player should be reasonably safe there for short amounts of time. You	2603	The player should be reasonably safe there for short amounts of time (e.g.
2088	I<MUST> call C<leave_link> as soon as possible, though.	2604	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2605	though, as the player cannot control the character while it is on the link
		2606	map.
2089		2607
2090	Will never block.	2608	Will never block.
2091		2609
2092	=item $player_object->leave_link ($map, $x, $y)	2610	=item $player_object->leave_link ($map, $x, $y)
2093		2611
…		…
2113	sub cf::object::player::enter_link {	2631	sub cf::object::player::enter_link {
2114	my ($self) = @_;	2632	my ($self) = @_;
2115		2633
2116	$self->deactivate_recursive;	2634	$self->deactivate_recursive;
2117		2635
		2636	++$self->{_link_recursion};
		2637
2118	return if UNIVERSAL::isa $self->map, "ext::map_link";	2638	return if UNIVERSAL::isa $self->map, "ext::map_link";
2119		2639
2120	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2640	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
2121	if $self->map && $self->map->{path} ne "{link}";	2641	if $self->map && $self->map->{path} ne "{link}";
2122		2642
2123	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2643	$self->enter_map ($LINK_MAP || link_map, 3, 3);
2124	}	2644	}
2125		2645
2126	sub cf::object::player::leave_link {	2646	sub cf::object::player::leave_link {
2127	my ($self, $map, $x, $y) = @_;	2647	my ($self, $map, $x, $y) = @_;
2128		2648
…		…
2145	($x, $y) = (-1, -1)	2665	($x, $y) = (-1, -1)
2146	unless (defined $x) && (defined $y);	2666	unless (defined $x) && (defined $y);
2147		2667
2148	# use -1 or undef as default coordinates, not 0, 0	2668	# use -1 or undef as default coordinates, not 0, 0
2149	($x, $y) = ($map->enter_x, $map->enter_y)	2669	($x, $y) = ($map->enter_x, $map->enter_y)
2150	if $x <=0 && $y <= 0;	2670	if $x <= 0 && $y <= 0;
2151		2671
2152	$map->load;	2672	$map->load;
2153	$map->load_diag;	2673	$map->load_neighbours;
2154		2674
2155	return unless $self->contr->active;	2675	return unless $self->contr->active;
2156	$self->activate_recursive;
2157		2676
2158	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2677	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
2159	$self->enter_map ($map, $x, $y);	2678	if ($self->enter_map ($map, $x, $y)) {
2160	}	2679	# entering was successful
		2680	delete $self->{_link_recursion};
		2681	# only activate afterwards, to support waiting in hooks
		2682	$self->activate_recursive;
		2683	}
2161		2684
		2685	}
		2686
2162	=item $player_object->goto ($path, $x, $y[, $check->($map)])	2687	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
2163		2688
2164	Moves the player to the given map-path and coordinates by first freezing	2689	Moves the player to the given map-path and coordinates by first freezing
2165	her, loading and preparing them map, calling the provided $check callback	2690	her, loading and preparing them map, calling the provided $check callback
2166	that has to return the map if sucecssful, and then unfreezes the player on	2691	that has to return the map if sucecssful, and then unfreezes the player on
2167	the new (success) or old (failed) map position.	2692	the new (success) or old (failed) map position. In either case, $done will
		2693	be called at the end of this process.
		2694
		2695	Note that $check will be called with a potentially non-loaded map, so if
		2696	it needs a loaded map it has to call C<< ->load >>.
2168		2697
2169	=cut	2698	=cut
2170		2699
2171	our $GOTOGEN;	2700	our $GOTOGEN;
2172		2701
2173	sub cf::object::player::goto {	2702	sub cf::object::player::goto {
2174	my ($self, $path, $x, $y, $check) = @_;	2703	my ($self, $path, $x, $y, $check, $done) = @_;
		2704
		2705	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2706	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2707	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2708	($path, $x, $y) = @$EMERGENCY_POSITION;
		2709	}
2175		2710
2176	# do generation counting so two concurrent goto's will be executed in-order	2711	# do generation counting so two concurrent goto's will be executed in-order
2177	my $gen = $self->{_goto_generation} = ++$GOTOGEN;	2712	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
2178		2713
2179	$self->enter_link;	2714	$self->enter_link;
2180		2715
2181	(async {	2716	(async {
		2717	$Coro::current->{desc} = "player::goto $path $x $y";
		2718
		2719	# *tag paths override both path and x|y
		2720	if ($path =~ /^\*(.*)$/) {
		2721	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2722	my $ob = $obs[rand @obs];
		2723
		2724	# see if we actually can go there
		2725	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2726	$ob = $obs[rand @obs];
		2727	} else {
		2728	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2729	}
		2730	# else put us there anyways for now #d#
		2731
		2732	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2733	} else {
		2734	($path, $x, $y) = (undef, undef, undef);
		2735	}
		2736	}
		2737
2182	my $map = eval {	2738	my $map = eval {
2183	my $map = cf::map::find $path;	2739	my $map = defined $path ? cf::map::find $path : undef;
2184		2740
2185	if ($map) {	2741	if ($map) {
2186	$map = $map->customise_for ($self);	2742	$map = $map->customise_for ($self);
2187	$map = $check->($map) if $check && $map;	2743	$map = $check->($map, $x, $y, $self) if $check && $map;
2188	} else {	2744	} else {
2189	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2745	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
2190	}	2746	}
2191		2747
2192	$map	2748	$map
2193	};	2749	};
2194		2750
…		…
2199		2755
2200	if ($gen == $self->{_goto_generation}) {	2756	if ($gen == $self->{_goto_generation}) {
2201	delete $self->{_goto_generation};	2757	delete $self->{_goto_generation};
2202	$self->leave_link ($map, $x, $y);	2758	$self->leave_link ($map, $x, $y);
2203	}	2759	}
		2760
		2761	$done->($self) if $done;
2204	})->prio (1);	2762	})->prio (1);
2205	}	2763	}
2206		2764
2207	=item $player_object->enter_exit ($exit_object)	2765	=item $player_object->enter_exit ($exit_object)
2208		2766
…		…
2228	}	2786	}
2229		2787
2230	sub prepare_random_map {	2788	sub prepare_random_map {
2231	my ($exit) = @_;	2789	my ($exit) = @_;
2232		2790
2233	my $guard = cf::lock_acquire "exit_prepare:$exit";
2234
2235	# all this does is basically replace the /! path by	2791	# all this does is basically replace the /! path by
2236	# a new random map path (?random/...) with a seed	2792	# a new random map path (?random/...) with a seed
2237	# that depends on the exit object	2793	# that depends on the exit object
2238		2794
2239	my $rmp = parse_random_map_params $exit->msg;	2795	my $rmp = parse_random_map_params $exit->msg;
…		…
2241	if ($exit->map) {	2797	if ($exit->map) {
2242	$rmp->{region} = $exit->region->name;	2798	$rmp->{region} = $exit->region->name;
2243	$rmp->{origin_map} = $exit->map->path;	2799	$rmp->{origin_map} = $exit->map->path;
2244	$rmp->{origin_x} = $exit->x;	2800	$rmp->{origin_x} = $exit->x;
2245	$rmp->{origin_y} = $exit->y;	2801	$rmp->{origin_y} = $exit->y;
		2802
		2803	$exit->map->touch;
2246	}	2804	}
2247		2805
2248	$rmp->{random_seed} ||= $exit->random_seed;	2806	$rmp->{random_seed} ||= $exit->random_seed;
2249		2807
2250	my $data = cf::to_json $rmp;	2808	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2251	my $md5 = Digest::MD5::md5_hex $data;	2809	my $md5 = Digest::MD5::md5_hex $data;
2252	my $meta = "$RANDOMDIR/$md5.meta";	2810	my $meta = "$RANDOMDIR/$md5.meta";
2253		2811
2254	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2812	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2255	aio_write $fh, 0, (length $data), $data, 0;	2813	aio_write $fh, 0, (length $data), $data, 0;
2256	undef $fh;	2814	undef $fh;
2257	aio_rename "$meta~", $meta;	2815	aio_rename "$meta~", $meta;
2258		2816
		2817	my $slaying = "?random/$md5";
		2818
		2819	if ($exit->valid) {
2259	$exit->slaying ("?random/$md5");	2820	$exit->slaying ("?random/$md5");
2260	$exit->msg (undef);	2821	$exit->msg (undef);
		2822	}
2261	}	2823	}
2262	}	2824	}
2263		2825
2264	sub cf::object::player::enter_exit {	2826	sub cf::object::player::enter_exit {
2265	my ($self, $exit) = @_;	2827	my ($self, $exit) = @_;
2266		2828
2267	return unless $self->type == cf::PLAYER;	2829	return unless $self->type == cf::PLAYER;
2268		2830
2269	if ($exit->slaying eq "/!") {
2270	#TODO: this should de-fi-ni-te-ly not be a sync-job
2271	# the problem is that $exit might not survive long enough
2272	# so it needs to be done right now, right here
2273	cf::sync_job { prepare_random_map $exit };
2274	}
2275
2276	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2277	my $hp = $exit->stats->hp;
2278	my $sp = $exit->stats->sp;
2279
2280	$self->enter_link;	2831	$self->enter_link;
2281		2832
2282	(async {	2833	(async {
2283	$self->deactivate_recursive; # just to be sure	2834	$Coro::current->{desc} = "enter_exit";
		2835
2284	unless (eval {	2836	unless (eval {
		2837	$self->deactivate_recursive; # just to be sure
		2838
		2839	# random map handling
		2840	{
		2841	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2842
		2843	prepare_random_map $exit
		2844	if $exit->slaying eq "/!";
		2845	}
		2846
		2847	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2848	my $x = $exit->stats->hp;
		2849	my $y = $exit->stats->sp;
		2850
2285	$self->goto ($slaying, $hp, $sp);	2851	$self->goto ($map, $x, $y);
2286		2852
		2853	# if exit is damned, update players death & WoR home-position
		2854	$self->contr->savebed ($map, $x, $y)
		2855	if $exit->flag (cf::FLAG_DAMNED);
		2856
2287	1;	2857	1
2288	}) {	2858	}) {
2289	$self->message ("Something went wrong deep within the crossfire server. "	2859	$self->message ("Something went wrong deep within the deliantra server. "
2290	. "I'll try to bring you back to the map you were before. "	2860	. "I'll try to bring you back to the map you were before. "
2291	. "Please report this to the dungeon master!",	2861	. "Please report this to the dungeon master!",
2292	cf::NDI_UNIQUE | cf::NDI_RED);	2862	cf::NDI_UNIQUE | cf::NDI_RED);
2293		2863
2294	warn "ERROR in enter_exit: $@";	2864	error "ERROR in enter_exit: $@";
2295	$self->leave_link;	2865	$self->leave_link;
2296	}	2866	}
2297	})->prio (1);	2867	})->prio (1);
2298	}	2868	}
2299		2869
…		…
2313		2883
2314	utf8::encode $text;	2884	utf8::encode $text;
2315	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2885	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2316	}	2886	}
2317		2887
		2888	=item $client->send_big_packet ($pkt)
		2889
		2890	Like C<send_packet>, but tries to compress large packets, and fragments
		2891	them as required.
		2892
		2893	=cut
		2894
		2895	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2896
		2897	sub cf::client::send_big_packet {
		2898	my ($self, $pkt) = @_;
		2899
		2900	# try lzf for large packets
		2901	$pkt = "lzf " . Compress::LZF::compress $pkt
		2902	if 1024 <= length $pkt and $self->{can_lzf};
		2903
		2904	# split very large packets
		2905	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2906	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2907	$pkt = "frag";
		2908	}
		2909
		2910	$self->send_packet ($pkt);
		2911	}
		2912
		2913	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2914
		2915	Send a drawinfo or msg packet to the client, formatting the msg for the
		2916	client if neccessary. C<$type> should be a string identifying the type of
		2917	the message, with C<log> being the default. If C<$color> is negative, suppress
		2918	the message unless the client supports the msg packet.
		2919
		2920	=cut
		2921
		2922	# non-persistent channels (usually the info channel)
		2923	our %CHANNEL = (
		2924	"c/motd" => {
		2925	id => "infobox",
		2926	title => "MOTD",
		2927	reply => undef,
		2928	tooltip => "The message of the day",
		2929	},
		2930	"c/identify" => {
		2931	id => "infobox",
		2932	title => "Identify",
		2933	reply => undef,
		2934	tooltip => "Items recently identified",
		2935	},
		2936	"c/examine" => {
		2937	id => "infobox",
		2938	title => "Examine",
		2939	reply => undef,
		2940	tooltip => "Signs and other items you examined",
		2941	},
		2942	"c/shopinfo" => {
		2943	id => "infobox",
		2944	title => "Shop Info",
		2945	reply => undef,
		2946	tooltip => "What your bargaining skill tells you about the shop",
		2947	},
		2948	"c/book" => {
		2949	id => "infobox",
		2950	title => "Book",
		2951	reply => undef,
		2952	tooltip => "The contents of a note or book",
		2953	},
		2954	"c/lookat" => {
		2955	id => "infobox",
		2956	title => "Look",
		2957	reply => undef,
		2958	tooltip => "What you saw there",
		2959	},
		2960	"c/who" => {
		2961	id => "infobox",
		2962	title => "Players",
		2963	reply => undef,
		2964	tooltip => "Shows players who are currently online",
		2965	},
		2966	"c/body" => {
		2967	id => "infobox",
		2968	title => "Body Parts",
		2969	reply => undef,
		2970	tooltip => "Shows which body parts you posess and are available",
		2971	},
		2972	"c/statistics" => {
		2973	id => "infobox",
		2974	title => "Statistics",
		2975	reply => undef,
		2976	tooltip => "Shows your primary statistics",
		2977	},
		2978	"c/skills" => {
		2979	id => "infobox",
		2980	title => "Skills",
		2981	reply => undef,
		2982	tooltip => "Shows your experience per skill and item power",
		2983	},
		2984	"c/shopitems" => {
		2985	id => "infobox",
		2986	title => "Shop Items",
		2987	reply => undef,
		2988	tooltip => "Shows the items currently for sale in this shop",
		2989	},
		2990	"c/resistances" => {
		2991	id => "infobox",
		2992	title => "Resistances",
		2993	reply => undef,
		2994	tooltip => "Shows your resistances",
		2995	},
		2996	"c/pets" => {
		2997	id => "infobox",
		2998	title => "Pets",
		2999	reply => undef,
		3000	tooltip => "Shows information abotu your pets/a specific pet",
		3001	},
		3002	"c/perceiveself" => {
		3003	id => "infobox",
		3004	title => "Perceive Self",
		3005	reply => undef,
		3006	tooltip => "You gained detailed knowledge about yourself",
		3007	},
		3008	"c/uptime" => {
		3009	id => "infobox",
		3010	title => "Uptime",
		3011	reply => undef,
		3012	tooltip => "How long the server has been running since last restart",
		3013	},
		3014	"c/mapinfo" => {
		3015	id => "infobox",
		3016	title => "Map Info",
		3017	reply => undef,
		3018	tooltip => "Information related to the maps",
		3019	},
		3020	"c/party" => {
		3021	id => "party",
		3022	title => "Party",
		3023	reply => "gsay ",
		3024	tooltip => "Messages and chat related to your party",
		3025	},
		3026	"c/death" => {
		3027	id => "death",
		3028	title => "Death",
		3029	reply => undef,
		3030	tooltip => "Reason for and more info about your most recent death",
		3031	},
		3032	"c/say" => $SAY_CHANNEL,
		3033	"c/chat" => $CHAT_CHANNEL,
		3034	);
		3035
		3036	sub cf::client::send_msg {
		3037	my ($self, $channel, $msg, $color, @extra) = @_;
		3038
		3039	$msg = $self->pl->expand_cfpod ($msg)
		3040	unless $color & cf::NDI_VERBATIM;
		3041
		3042	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3043
		3044	# check predefined channels, for the benefit of C
		3045	if ($CHANNEL{$channel}) {
		3046	$channel = $CHANNEL{$channel};
		3047
		3048	$self->ext_msg (channel_info => $channel);
		3049	$channel = $channel->{id};
		3050
		3051	} elsif (ref $channel) {
		3052	# send meta info to client, if not yet sent
		3053	unless (exists $self->{channel}{$channel->{id}}) {
		3054	$self->{channel}{$channel->{id}} = $channel;
		3055	$self->ext_msg (channel_info => $channel);
		3056	}
		3057
		3058	$channel = $channel->{id};
		3059	}
		3060
		3061	return unless @extra || length $msg;
		3062
		3063	# default colour, mask it out
		3064	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3065	if $color & cf::NDI_DEF;
		3066
		3067	my $pkt = "msg "
		3068	. $self->{json_coder}->encode (
		3069	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3070	);
		3071
		3072	$self->send_big_packet ($pkt);
		3073	}
		3074
2318	=item $client->ext_event ($type, %msg)	3075	=item $client->ext_msg ($type, @msg)
2319		3076
2320	Sends an exti event to the client.	3077	Sends an ext event to the client.
2321		3078
2322	=cut	3079	=cut
2323		3080
2324	sub cf::client::ext_event($$%) {	3081	sub cf::client::ext_msg($$@) {
2325	my ($self, $type, %msg) = @_;	3082	my ($self, $type, @msg) = @_;
2326		3083
		3084	if ($self->extcmd == 2) {
		3085	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3086	} elsif ($self->extcmd == 1) { # TODO: remove
2327	$msg{msgtype} = "event_$type";	3087	push @msg, msgtype => "event_$type";
2328	$self->send_packet ("ext " . cf::to_json \%msg);	3088	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3089	}
		3090	}
		3091
		3092	=item $client->ext_reply ($msgid, @msg)
		3093
		3094	Sends an ext reply to the client.
		3095
		3096	=cut
		3097
		3098	sub cf::client::ext_reply($$@) {
		3099	my ($self, $id, @msg) = @_;
		3100
		3101	if ($self->extcmd == 2) {
		3102	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3103	} elsif ($self->extcmd == 1) {
		3104	#TODO: version 1, remove
		3105	unshift @msg, msgtype => "reply", msgid => $id;
		3106	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3107	}
2329	}	3108	}
2330		3109
2331	=item $success = $client->query ($flags, "text", \&cb)	3110	=item $success = $client->query ($flags, "text", \&cb)
2332		3111
2333	Queues a query to the client, calling the given callback with	3112	Queues a query to the client, calling the given callback with
2334	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3113	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2335	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3114	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2336		3115
2337	Queries can fail, so check the return code. Or don't, as queries will become	3116	Queries can fail, so check the return code. Or don't, as queries will
2338	reliable at some point in the future.	3117	become reliable at some point in the future.
2339		3118
2340	=cut	3119	=cut
2341		3120
2342	sub cf::client::query {	3121	sub cf::client::query {
2343	my ($self, $flags, $text, $cb) = @_;	3122	my ($self, $flags, $text, $cb) = @_;
…		…
2351	utf8::encode $text;	3130	utf8::encode $text;
2352	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3131	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2353		3132
2354	$self->send_packet ($self->{query_queue}[0][0])	3133	$self->send_packet ($self->{query_queue}[0][0])
2355	if @{ $self->{query_queue} } == 1;	3134	if @{ $self->{query_queue} } == 1;
		3135
		3136	1
2356	}	3137	}
2357		3138
2358	cf::client->attach (	3139	cf::client->attach (
		3140	on_connect => sub {
		3141	my ($ns) = @_;
		3142
		3143	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3144	},
2359	on_reply => sub {	3145	on_reply => sub {
2360	my ($ns, $msg) = @_;	3146	my ($ns, $msg) = @_;
2361		3147
2362	# this weird shuffling is so that direct followup queries	3148	# this weird shuffling is so that direct followup queries
2363	# get handled first	3149	# get handled first
…		…
2375	} else {	3161	} else {
2376	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3162	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2377	}	3163	}
2378	}	3164	}
2379	},	3165	},
		3166	on_exticmd => sub {
		3167	my ($ns, $buf) = @_;
		3168
		3169	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3170
		3171	if (ref $msg) {
		3172	my ($type, $reply, @payload) =
		3173	"ARRAY" eq ref $msg
		3174	? @$msg
		3175	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3176
		3177	my @reply;
		3178
		3179	if (my $cb = $EXTICMD{$type}) {
		3180	@reply = $cb->($ns, @payload);
		3181	}
		3182
		3183	$ns->ext_reply ($reply, @reply)
		3184	if $reply;
		3185
		3186	} else {
		3187	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3188	}
		3189
		3190	cf::override;
		3191	},
2380	);	3192	);
2381		3193
2382	=item $client->async (\&cb)	3194	=item $client->async (\&cb)
2383		3195
2384	Create a new coroutine, running the specified callback. The coroutine will	3196	Create a new coroutine, running the specified callback. The coroutine will
…		…
2400		3212
2401	$coro	3213	$coro
2402	}	3214	}
2403		3215
2404	cf::client->attach (	3216	cf::client->attach (
2405	on_destroy => sub {	3217	on_client_destroy => sub {
2406	my ($ns) = @_;	3218	my ($ns) = @_;
2407		3219
2408	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3220	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2409	},	3221	},
2410	);	3222	);
…		…
2425	our $safe = new Safe "safe";	3237	our $safe = new Safe "safe";
2426	our $safe_hole = new Safe::Hole;	3238	our $safe_hole = new Safe::Hole;
2427		3239
2428	$SIG{FPE} = 'IGNORE';	3240	$SIG{FPE} = 'IGNORE';
2429		3241
2430	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3242	$safe->permit_only (Opcode::opset qw(
		3243	:base_core :base_mem :base_orig :base_math :base_loop
		3244	grepstart grepwhile mapstart mapwhile
		3245	sort time
		3246	));
2431		3247
2432	# here we export the classes and methods available to script code	3248	# here we export the classes and methods available to script code
2433		3249
2434	=pod	3250	=pod
2435		3251
2436	The following functions and methods are available within a safe environment:	3252	The following functions and methods are available within a safe environment:
2437		3253
2438	cf::object contr pay_amount pay_player map	3254	cf::object
		3255	contr pay_amount pay_player map x y force_find force_add destroy
		3256	insert remove name archname title slaying race decrease split
		3257	value
		3258
2439	cf::object::player player	3259	cf::object::player
2440	cf::player peaceful	3260	player
2441	cf::map trigger	3261
		3262	cf::player
		3263	peaceful
		3264
		3265	cf::map
		3266	trigger
2442		3267
2443	=cut	3268	=cut
2444		3269
2445	for (	3270	for (
2446	["cf::object" => qw(contr pay_amount pay_player map)],	3271	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3272	insert remove inv nrof name archname title slaying race
		3273	decrease split destroy change_exp value msg lore send_msg)],
2447	["cf::object::player" => qw(player)],	3274	["cf::object::player" => qw(player)],
2448	["cf::player" => qw(peaceful)],	3275	["cf::player" => qw(peaceful send_msg)],
2449	["cf::map" => qw(trigger)],	3276	["cf::map" => qw(trigger)],
2450	) {	3277	) {
2451	no strict 'refs';
2452	my ($pkg, @funs) = @$_;	3278	my ($pkg, @funs) = @$_;
2453	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3279	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2454	for @funs;	3280	for @funs;
2455	}	3281	}
2456		3282
…		…
2471		3297
2472	my $qcode = $code;	3298	my $qcode = $code;
2473	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3299	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2474	$qcode =~ s/\n/\\n/g;	3300	$qcode =~ s/\n/\\n/g;
2475		3301
		3302	%vars = (_dummy => 0) unless %vars;
		3303
		3304	my @res;
2476	local $_;	3305	local $_;
2477	local @safe::cf::_safe_eval_args = values %vars;
2478		3306
2479	my $eval =	3307	my $eval =
2480	"do {\n"	3308	"do {\n"
2481	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3309	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2482	. "#line 0 \"{$qcode}\"\n"	3310	. "#line 0 \"{$qcode}\"\n"
2483	. $code	3311	. $code
2484	. "\n}"	3312	. "\n}"
2485	;	3313	;
2486		3314
		3315	if ($CFG{safe_eval}) {
2487	sub_generation_inc;	3316	sub_generation_inc;
		3317	local @safe::cf::_safe_eval_args = values %vars;
2488	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3318	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2489	sub_generation_inc;	3319	sub_generation_inc;
		3320	} else {
		3321	local @cf::_safe_eval_args = values %vars;
		3322	@res = wantarray ? eval eval : scalar eval $eval;
		3323	}
2490		3324
2491	if ($@) {	3325	if ($@) {
2492	warn "$@";	3326	warn "$@",
2493	warn "while executing safe code '$code'\n";	3327	"while executing safe code '$code'\n",
2494	warn "with arguments " . (join " ", %vars) . "\n";	3328	"with arguments " . (join " ", %vars) . "\n";
2495	}	3329	}
2496		3330
2497	wantarray ? @res : $res[0]	3331	wantarray ? @res : $res[0]
2498	}	3332	}
2499		3333
…		…
2513	=cut	3347	=cut
2514		3348
2515	sub register_script_function {	3349	sub register_script_function {
2516	my ($fun, $cb) = @_;	3350	my ($fun, $cb) = @_;
2517		3351
2518	no strict 'refs';	3352	$fun = "safe::$fun" if $CFG{safe_eval};
2519	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3353	*$fun = $safe_hole->wrap ($cb);
2520	}	3354	}
2521		3355
2522	=back	3356	=back
2523		3357
2524	=cut	3358	=cut
2525		3359
2526	#############################################################################	3360	#############################################################################
2527	# the server's init and main functions	3361	# the server's init and main functions
2528		3362
		3363	# async inc loader. yay.
		3364	sub inc_loader {
		3365	my $mod = $_[1];
		3366
		3367	if (in_main && !tick_inhibit) {
		3368	Carp::cluck "ERROR: attempted synchronous perl module load ($mod)";
		3369	} else {
		3370	debug "loading perl module $mod\n";
		3371	}
		3372
		3373	# 1. find real file
		3374	for my $dir (@ORIG_INC) {
		3375	warn "$dir/$mod\n";#d#
		3376	ref $dir and next;
		3377	0 <= Coro::AIO::aio_load "$dir/$mod", my $data
		3378	or next;
		3379
		3380	$data = "#line 1 $dir/$mod\n$data";
		3381
		3382	open my $fh, "<", \$data or die;
		3383
		3384	return $fh;
		3385	}
		3386
		3387	()
		3388	}
		3389
		3390	sub init_inc {
		3391	# save original @INC
		3392	@ORIG_INC = ($LIBDIR, @INC) unless @ORIG_INC;
		3393
		3394	# make sure we can do scalar-opens
		3395	open my $dummy, "<", \my $dummy2;
		3396
		3397	# execute some stuff so perl load's some of the core modules
		3398	/Ü/ =~ /ü/i;
		3399	eval { &Storable::nstore_fd };
		3400
		3401	@INC = (\&inc_loader, @ORIG_INC); # @ORIG_INC is needed for DynaLoader, AutoLoad etc.
		3402
		3403	debug "module loading will be asynchronous from this point on.";
		3404	}
		3405
2529	sub load_facedata($) {	3406	sub load_facedata($) {
2530	my ($path) = @_;	3407	my ($path) = @_;
2531		3408
		3409	# HACK to clear player env face cache, we need some signal framework
		3410	# for this (global event?)
		3411	%ext::player_env::MUSIC_FACE_CACHE = ();
		3412
		3413	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3414
2532	warn "loading facedata from $path\n";	3415	trace "loading facedata from $path\n";
2533		3416
2534	my $facedata;	3417	my $facedata;
2535	0 < aio_load $path, $facedata	3418	0 < aio_load $path, $facedata
2536	or die "$path: $!";	3419	or die "$path: $!";
2537		3420
2538	$facedata = Coro::Storable::thaw $facedata;	3421	$facedata = Coro::Storable::thaw $facedata;
2539		3422
2540	$facedata->{version} == 2	3423	$facedata->{version} == 2
2541	or cf::cleanup "$path: version mismatch, cannot proceed.";	3424	or cf::cleanup "$path: version mismatch, cannot proceed.";
2542		3425
		3426	# patch in the exptable
		3427	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3428	$facedata->{resource}{"res/exp_table"} = {
		3429	type => FT_RSRC,
		3430	data => $exp_table,
		3431	hash => (Digest::MD5::md5 $exp_table),
		3432	};
		3433	cf::cede_to_tick;
		3434
2543	{	3435	{
2544	my $faces = $facedata->{faceinfo};	3436	my $faces = $facedata->{faceinfo};
2545		3437
2546	while (my ($face, $info) = each %$faces) {	3438	while (my ($face, $info) = each %$faces) {
2547	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3439	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3440
2548	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3441	cf::face::set_visibility $idx, $info->{visibility};
		3442	cf::face::set_magicmap $idx, $info->{magicmap};
2549	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3443	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2550	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3444	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2551	Coro::cede;	3445
		3446	cf::cede_to_tick;
2552	}	3447	}
2553		3448
2554	while (my ($face, $info) = each %$faces) {	3449	while (my ($face, $info) = each %$faces) {
2555	next unless $info->{smooth};	3450	next unless $info->{smooth};
		3451
2556	my $idx = cf::face::find $face	3452	my $idx = cf::face::find $face
2557	or next;	3453	or next;
		3454
2558	if (my $smooth = cf::face::find $info->{smooth}) {	3455	if (my $smooth = cf::face::find $info->{smooth}) {
		3456	cf::face::set_smooth $idx, $smooth;
2559	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3457	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2560	} else {	3458	} else {
2561	warn "smooth face '$info->{smooth}' not found for face '$face'";	3459	error "smooth face '$info->{smooth}' not found for face '$face'";
2562	}	3460	}
2563	Coro::cede;	3461
		3462	cf::cede_to_tick;
2564	}	3463	}
2565	}	3464	}
2566		3465
2567	{	3466	{
2568	my $anims = $facedata->{animinfo};	3467	my $anims = $facedata->{animinfo};
2569		3468
2570	while (my ($anim, $info) = each %$anims) {	3469	while (my ($anim, $info) = each %$anims) {
2571	cf::anim::set $anim, $info->{frames}, $info->{facings};	3470	cf::anim::set $anim, $info->{frames}, $info->{facings};
2572	Coro::cede;	3471	cf::cede_to_tick;
2573	}	3472	}
2574		3473
2575	cf::anim::invalidate_all; # d'oh	3474	cf::anim::invalidate_all; # d'oh
2576	}	3475	}
2577		3476
		3477	{
		3478	my $res = $facedata->{resource};
		3479
		3480	while (my ($name, $info) = each %$res) {
		3481	if (defined $info->{type}) {
		3482	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3483
		3484	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3485	cf::face::set_type $idx, $info->{type};
		3486	} else {
		3487	$RESOURCE{$name} = $info; # unused
		3488	}
		3489
		3490	cf::cede_to_tick;
		3491	}
		3492	}
		3493
		3494	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3495
2578	1	3496	1
2579	}	3497	}
2580		3498
		3499	register_exticmd fx_want => sub {
		3500	my ($ns, $want) = @_;
		3501
		3502	while (my ($k, $v) = each %$want) {
		3503	$ns->fx_want ($k, $v);
		3504	}
		3505	};
		3506
		3507	sub load_resource_file($) {
		3508	my $guard = lock_acquire "load_resource_file";
		3509
		3510	my $status = load_resource_file_ $_[0];
		3511	get_slot 0.1, 100;
		3512	cf::arch::commit_load;
		3513
		3514	$status
		3515	}
		3516
2581	sub reload_regions {	3517	sub reload_regions {
		3518	# HACK to clear player env face cache, we need some signal framework
		3519	# for this (global event?)
		3520	%ext::player_env::MUSIC_FACE_CACHE = ();
		3521
2582	load_resource_file "$MAPDIR/regions"	3522	load_resource_file "$MAPDIR/regions"
2583	or die "unable to load regions file\n";	3523	or die "unable to load regions file\n";
		3524
		3525	for (cf::region::list) {
		3526	$_->{match} = qr/$_->{match}/
		3527	if exists $_->{match};
		3528	}
2584	}	3529	}
2585		3530
2586	sub reload_facedata {	3531	sub reload_facedata {
2587	load_facedata "$DATADIR/facedata"	3532	load_facedata "$DATADIR/facedata"
2588	or die "unable to load facedata\n";	3533	or die "unable to load facedata\n";
…		…
2596	sub reload_treasures {	3541	sub reload_treasures {
2597	load_resource_file "$DATADIR/treasures"	3542	load_resource_file "$DATADIR/treasures"
2598	or die "unable to load treasurelists\n";	3543	or die "unable to load treasurelists\n";
2599	}	3544	}
2600		3545
		3546	sub reload_sound {
		3547	trace "loading sound config from $DATADIR/sound\n";
		3548
		3549	0 < Coro::AIO::aio_load "$DATADIR/sound", my $data
		3550	or die "$DATADIR/sound $!";
		3551
		3552	my $soundconf = JSON::XS->new->utf8->relaxed->decode ($data);
		3553
		3554	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3555	my $sound = $soundconf->{compat}[$_]
		3556	or next;
		3557
		3558	my $face = cf::face::find "sound/$sound->[1]";
		3559	cf::sound::set $sound->[0] => $face;
		3560	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3561	}
		3562
		3563	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3564	my $face = cf::face::find "sound/$v";
		3565	cf::sound::set $k => $face;
		3566	}
		3567	}
		3568
2601	sub reload_resources {	3569	sub reload_resources {
2602	warn "reloading resource files...\n";	3570	trace "reloading resource files...\n";
2603		3571
		3572	reload_facedata;
		3573	reload_sound;
		3574	reload_archetypes;
2604	reload_regions;	3575	reload_regions;
2605	reload_facedata;
2606	#reload_archetypes;#d#
2607	reload_archetypes;
2608	reload_treasures;	3576	reload_treasures;
2609		3577
2610	warn "finished reloading resource files\n";	3578	trace "finished reloading resource files\n";
2611	}	3579	}
2612		3580
2613	sub init {	3581	sub reload_config {
2614	reload_resources;	3582	trace "reloading config file...\n";
2615	}
2616		3583
2617	sub cfg_load {
2618	open my $fh, "<:utf8", "$CONFDIR/config"	3584	open my $fh, "<:utf8", "$CONFDIR/config"
2619	or return;	3585	or return;
2620		3586
2621	local $/;	3587	local $/;
2622	*CFG = YAML::Syck::Load <$fh>;	3588	*CFG = YAML::XS::Load scalar <$fh>;
2623		3589
2624	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3590	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2625		3591
2626	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3592	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2627	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3593	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2628		3594
2629	if (exists $CFG{mlockall}) {	3595	if (exists $CFG{mlockall}) {
…		…
2631	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"	3597	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2632	and die "WARNING: m(un)lockall failed: $!\n";	3598	and die "WARNING: m(un)lockall failed: $!\n";
2633	};	3599	};
2634	warn $@ if $@;	3600	warn $@ if $@;
2635	}	3601	}
		3602
		3603	trace "finished reloading resource files\n";
		3604	}
		3605
		3606	sub pidfile() {
		3607	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3608	or die "$PIDFILE: $!";
		3609	flock $fh, &Fcntl::LOCK_EX
		3610	or die "$PIDFILE: flock: $!";
		3611	$fh
		3612	}
		3613
		3614	# make sure only one server instance is running at any one time
		3615	sub atomic {
		3616	my $fh = pidfile;
		3617
		3618	my $pid = <$fh>;
		3619	kill 9, $pid if $pid > 0;
		3620
		3621	seek $fh, 0, 0;
		3622	print $fh $$;
		3623	}
		3624
		3625	sub main_loop {
		3626	trace "EV::loop starting\n";
		3627	if (1) {
		3628	EV::loop;
		3629	}
		3630	trace "EV::loop returned\n";
		3631	goto &main_loop unless $REALLY_UNLOOP;
2636	}	3632	}
2637		3633
2638	sub main {	3634	sub main {
		3635	cf::init_globals; # initialise logging
		3636
		3637	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3638	LOG llevInfo, "Copyright (C) 2005-2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3639	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3640	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3641
		3642	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3643
2639	# we must not ever block the main coroutine	3644	# we must not ever block the main coroutine
2640	local $Coro::idle = sub {	3645	local $Coro::idle = sub {
2641	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3646	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2642	(async {	3647	(async {
2643	Event::one_event;	3648	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3649	EV::loop EV::LOOP_ONESHOT;
2644	})->prio (Coro::PRIO_MAX);	3650	})->prio (Coro::PRIO_MAX);
2645	};	3651	};
2646		3652
2647	cfg_load;	3653	evthread_start IO::AIO::poll_fileno;
		3654
		3655	cf::sync_job {
		3656	init_inc;
		3657
		3658	cf::init_experience;
		3659	cf::init_anim;
		3660	cf::init_attackmess;
		3661	cf::init_dynamic;
		3662
		3663	cf::load_settings;
		3664	cf::load_materials;
		3665
		3666	reload_resources;
		3667	reload_config;
2648	db_init;	3668	db_init;
		3669
		3670	cf::init_uuid;
		3671	cf::init_signals;
		3672	cf::init_skills;
		3673
		3674	cf::init_beforeplay;
		3675
		3676	atomic;
		3677
2649	load_extensions;	3678	load_extensions;
2650		3679
2651	$TICK_WATCHER->start;	3680	utime time, time, $RUNTIMEFILE;
2652	Event::loop;	3681
		3682	# no (long-running) fork's whatsoever before this point(!)
		3683	use POSIX ();
		3684	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3685
		3686	(pop @POST_INIT)->(0) while @POST_INIT;
		3687	};
		3688
		3689	cf::object::thawer::errors_are_fatal 0;
		3690	info "parse errors in files are no longer fatal from this point on.\n";
		3691
		3692	my $free_main; $free_main = EV::idle sub {
		3693	undef $free_main;
		3694	undef &main; # free gobs of memory :)
		3695	};
		3696
		3697	goto &main_loop;
2653	}	3698	}
2654		3699
2655	#############################################################################	3700	#############################################################################
2656	# initialisation and cleanup	3701	# initialisation and cleanup
2657		3702
2658	# install some emergency cleanup handlers	3703	# install some emergency cleanup handlers
2659	BEGIN {	3704	BEGIN {
		3705	our %SIGWATCHER = ();
2660	for my $signal (qw(INT HUP TERM)) {	3706	for my $signal (qw(INT HUP TERM)) {
2661	Event->signal (	3707	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2662	reentrant => 0,
2663	data => WF_AUTOCANCEL,
2664	signal => $signal,
2665	prio => 0,
2666	cb => sub {
2667	cf::cleanup "SIG$signal";	3708	cf::cleanup "SIG$signal";
2668	},
2669	);	3709	};
2670	}	3710	}
2671	}	3711	}
2672		3712
2673	sub write_runtime {	3713	sub write_runtime_sync {
2674	my $runtime = "$LOCALDIR/runtime";	3714	my $t0 = AE::time;
2675		3715
2676	# first touch the runtime file to show we are still running:	3716	# first touch the runtime file to show we are still running:
2677	# the fsync below can take a very very long time.	3717	# the fsync below can take a very very long time.
2678		3718
2679	IO::AIO::aio_utime $runtime, undef, undef;	3719	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
2680		3720
2681	my $guard = cf::lock_acquire "write_runtime";	3721	my $guard = cf::lock_acquire "write_runtime";
2682		3722
2683	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	3723	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
2684	or return;	3724	or return;
2685		3725
2686	my $value = $cf::RUNTIME + 90 + 10;	3726	my $value = $cf::RUNTIME + 90 + 10;
2687	# 10 is the runtime save interval, for a monotonic clock	3727	# 10 is the runtime save interval, for a monotonic clock
2688	# 60 allows for the watchdog to kill the server.	3728	# 60 allows for the watchdog to kill the server.
…		…
2698	aio_utime $fh, undef, undef;	3738	aio_utime $fh, undef, undef;
2699		3739
2700	close $fh	3740	close $fh
2701	or return;	3741	or return;
2702		3742
2703	aio_rename "$runtime~", $runtime	3743	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
2704	and return;	3744	and return;
2705		3745
2706	warn "runtime file written.\n";	3746	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
2707		3747
2708	1	3748	1
		3749	}
		3750
		3751	our $uuid_lock;
		3752	our $uuid_skip;
		3753
		3754	sub write_uuid_sync($) {
		3755	$uuid_skip ||= $_[0];
		3756
		3757	return if $uuid_lock;
		3758	local $uuid_lock = 1;
		3759
		3760	my $uuid = "$LOCALDIR/uuid";
		3761
		3762	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3763	or return;
		3764
		3765	my $value = uuid_seq uuid_cur;
		3766
		3767	unless ($value) {
		3768	info "cowardly refusing to write zero uuid value!\n";
		3769	return;
		3770	}
		3771
		3772	my $value = uuid_str $value + $uuid_skip;
		3773	$uuid_skip = 0;
		3774
		3775	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3776	and return;
		3777
		3778	# always fsync - this file is important
		3779	aio_fsync $fh
		3780	and return;
		3781
		3782	close $fh
		3783	or return;
		3784
		3785	aio_rename "$uuid~", $uuid
		3786	and return;
		3787
		3788	trace "uuid file written ($value).\n";
		3789
		3790	1
		3791
		3792	}
		3793
		3794	sub write_uuid($$) {
		3795	my ($skip, $sync) = @_;
		3796
		3797	$sync ? write_uuid_sync $skip
		3798	: async { write_uuid_sync $skip };
2709	}	3799	}
2710		3800
2711	sub emergency_save() {	3801	sub emergency_save() {
2712	my $freeze_guard = cf::freeze_mainloop;	3802	my $freeze_guard = cf::freeze_mainloop;
2713		3803
2714	warn "enter emergency perl save\n";	3804	info "emergency_perl_save: enter\n";
		3805
		3806	# this is a trade-off: we want to be very quick here, so
		3807	# save all maps without fsync, and later call a global sync
		3808	# (which in turn might be very very slow)
		3809	local $USE_FSYNC = 0;
2715		3810
2716	cf::sync_job {	3811	cf::sync_job {
		3812	cf::write_runtime_sync; # external watchdog should not bark
		3813
2717	# use a peculiar iteration method to avoid tripping on perl	3814	# use a peculiar iteration method to avoid tripping on perl
2718	# refcount bugs in for. also avoids problems with players	3815	# refcount bugs in for. also avoids problems with players
2719	# and maps saved/destroyed asynchronously.	3816	# and maps saved/destroyed asynchronously.
2720	warn "begin emergency player save\n";	3817	info "emergency_perl_save: begin player save\n";
2721	for my $login (keys %cf::PLAYER) {	3818	for my $login (keys %cf::PLAYER) {
2722	my $pl = $cf::PLAYER{$login} or next;	3819	my $pl = $cf::PLAYER{$login} or next;
2723	$pl->valid or next;	3820	$pl->valid or next;
		3821	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2724	$pl->save;	3822	$pl->save;
2725	}	3823	}
2726	warn "end emergency player save\n";	3824	info "emergency_perl_save: end player save\n";
2727		3825
2728	warn "begin emergency map save\n";	3826	cf::write_runtime_sync; # external watchdog should not bark
		3827
		3828	info "emergency_perl_save: begin map save\n";
2729	for my $path (keys %cf::MAP) {	3829	for my $path (keys %cf::MAP) {
2730	my $map = $cf::MAP{$path} or next;	3830	my $map = $cf::MAP{$path} or next;
2731	$map->valid or next;	3831	$map->valid or next;
2732	$map->save;	3832	$map->save;
2733	}	3833	}
2734	warn "end emergency map save\n";	3834	info "emergency_perl_save: end map save\n";
2735		3835
2736	warn "begin emergency database checkpoint\n";	3836	cf::write_runtime_sync; # external watchdog should not bark
		3837
		3838	info "emergency_perl_save: begin database checkpoint\n";
2737	BDB::db_env_txn_checkpoint $DB_ENV;	3839	BDB::db_env_txn_checkpoint $DB_ENV;
2738	warn "end emergency database checkpoint\n";	3840	info "emergency_perl_save: end database checkpoint\n";
		3841
		3842	info "emergency_perl_save: begin write uuid\n";
		3843	write_uuid_sync 1;
		3844	info "emergency_perl_save: end write uuid\n";
		3845
		3846	cf::write_runtime_sync; # external watchdog should not bark
		3847
		3848	trace "emergency_perl_save: syncing database to disk";
		3849	BDB::db_env_txn_checkpoint $DB_ENV;
		3850
		3851	info "emergency_perl_save: starting sync\n";
		3852	IO::AIO::aio_sync sub {
		3853	info "emergency_perl_save: finished sync\n";
		3854	};
		3855
		3856	cf::write_runtime_sync; # external watchdog should not bark
		3857
		3858	trace "emergency_perl_save: flushing outstanding aio requests";
		3859	while (IO::AIO::nreqs || BDB::nreqs) {
		3860	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3861	}
		3862
		3863	cf::write_runtime_sync; # external watchdog should not bark
2739	};	3864	};
2740		3865
2741	warn "leave emergency perl save\n";	3866	info "emergency_perl_save: leave\n";
2742	}	3867	}
2743		3868
2744	sub post_cleanup {	3869	sub post_cleanup {
2745	my ($make_core) = @_;	3870	my ($make_core) = @_;
2746		3871
		3872	IO::AIO::flush;
		3873
2747	warn Carp::longmess "post_cleanup backtrace"	3874	error Carp::longmess "post_cleanup backtrace"
2748	if $make_core;	3875	if $make_core;
		3876
		3877	my $fh = pidfile;
		3878	unlink $PIDFILE if <$fh> == $$;
		3879	}
		3880
		3881	# a safer delete_package, copied from Symbol
		3882	sub clear_package($) {
		3883	my $pkg = shift;
		3884
		3885	# expand to full symbol table name if needed
		3886	unless ($pkg =~ /^main::.*::$/) {
		3887	$pkg = "main$pkg" if $pkg =~ /^::/;
		3888	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3889	$pkg .= '::' unless $pkg =~ /::$/;
		3890	}
		3891
		3892	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3893	my $stem_symtab = *{$stem}{HASH};
		3894
		3895	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3896	or return;
		3897
		3898	# clear all symbols
		3899	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3900	for my $name (keys %$leaf_symtab) {
		3901	_gv_clear *{"$pkg$name"};
		3902	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3903	}
2749	}	3904	}
2750		3905
2751	sub do_reload_perl() {	3906	sub do_reload_perl() {
2752	# can/must only be called in main	3907	# can/must only be called in main
2753	if ($Coro::current != $Coro::main) {	3908	if (in_main) {
2754	warn "can only reload from main coroutine";	3909	error "can only reload from main coroutine";
2755	return;	3910	return;
2756	}	3911	}
2757		3912
		3913	return if $RELOAD++;
		3914
		3915	my $t1 = AE::time;
		3916
		3917	while ($RELOAD) {
2758	warn "reloading...";	3918	info "reloading...";
2759		3919
2760	warn "entering sync_job";	3920	trace "entering sync_job";
2761		3921
2762	cf::sync_job {	3922	cf::sync_job {
2763	cf::write_runtime; # external watchdog should not bark
2764	cf::emergency_save;	3923	cf::emergency_save;
2765	cf::write_runtime; # external watchdog should not bark
2766		3924
2767	warn "syncing database to disk";
2768	BDB::db_env_txn_checkpoint $DB_ENV;
2769
2770	# if anything goes wrong in here, we should simply crash as we already saved
2771
2772	warn "cancelling all WF_AUTOCANCEL watchers";
2773	for (Event::all_watchers) {
2774	$_->cancel if $_->data & WF_AUTOCANCEL;
2775	}
2776
2777	warn "flushing outstanding aio requests";
2778	for (;;) {
2779	BDB::flush;
2780	IO::AIO::flush;
2781	Coro::cede;
2782	last unless IO::AIO::nreqs || BDB::nreqs;
2783	warn "iterate...";
2784	}
2785
2786	++$RELOAD;
2787
2788	warn "cancelling all extension coros";	3925	trace "cancelling all extension coros";
2789	$_->cancel for values %EXT_CORO;	3926	$_->cancel for values %EXT_CORO;
2790	%EXT_CORO = ();	3927	%EXT_CORO = ();
2791		3928
2792	warn "removing commands";	3929	trace "removing commands";
2793	%COMMAND = ();	3930	%COMMAND = ();
2794		3931
2795	warn "removing ext commands";	3932	trace "removing ext/exti commands";
2796	%EXTCMD = ();	3933	%EXTCMD = ();
		3934	%EXTICMD = ();
2797		3935
2798	warn "unloading/nuking all extensions";	3936	trace "unloading/nuking all extensions";
2799	for my $pkg (@EXTS) {	3937	for my $pkg (@EXTS) {
2800	warn "... unloading $pkg";	3938	trace "... unloading $pkg";
2801		3939
2802	if (my $cb = $pkg->can ("unload")) {	3940	if (my $cb = $pkg->can ("unload")) {
2803	eval {	3941	eval {
2804	$cb->($pkg);	3942	$cb->($pkg);
2805	1	3943	1
2806	} or warn "$pkg unloaded, but with errors: $@";	3944	} or error "$pkg unloaded, but with errors: $@";
		3945	}
		3946
		3947	trace "... clearing $pkg";
		3948	clear_package $pkg;
2807	}	3949	}
2808		3950
2809	warn "... nuking $pkg";
2810	Symbol::delete_package $pkg;
2811	}
2812
2813	warn "unloading all perl modules loaded from $LIBDIR";	3951	trace "unloading all perl modules loaded from $LIBDIR";
2814	while (my ($k, $v) = each %INC) {	3952	while (my ($k, $v) = each %INC) {
2815	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3953	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2816		3954
2817	warn "... unloading $k";	3955	trace "... unloading $k";
2818	delete $INC{$k};	3956	delete $INC{$k};
2819		3957
2820	$k =~ s/\.pm$//;	3958	$k =~ s/\.pm$//;
2821	$k =~ s/\//::/g;	3959	$k =~ s/\//::/g;
2822		3960
2823	if (my $cb = $k->can ("unload_module")) {	3961	if (my $cb = $k->can ("unload_module")) {
2824	$cb->();	3962	$cb->();
		3963	}
		3964
		3965	clear_package $k;
2825	}	3966	}
2826		3967
2827	Symbol::delete_package $k;
2828	}
2829
2830	warn "getting rid of safe::, as good as possible";	3968	trace "getting rid of safe::, as good as possible";
2831	Symbol::delete_package "safe::$_"	3969	clear_package "safe::$_"
2832	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3970	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2833		3971
2834	warn "unloading cf.pm \"a bit\"";	3972	trace "unloading cf.pm \"a bit\"";
2835	delete $INC{"cf.pm"};	3973	delete $INC{"cf.pm"};
2836	delete $INC{"cf/pod.pm"};	3974	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2837		3975
2838	# don't, removes xs symbols, too,	3976	# don't, removes xs symbols, too,
2839	# and global variables created in xs	3977	# and global variables created in xs
2840	#Symbol::delete_package __PACKAGE__;	3978	#clear_package __PACKAGE__;
2841		3979
2842	warn "unload completed, starting to reload now";	3980	info "unload completed, starting to reload now";
2843		3981
2844	warn "reloading cf.pm";	3982	trace "reloading cf.pm";
2845	require cf;	3983	require cf;
2846	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3984	cf::_connect_to_perl_1;
2847		3985
2848	warn "loading config and database again";	3986	trace "loading config and database again";
2849	cf::cfg_load;	3987	cf::reload_config;
2850		3988
2851	warn "loading extensions";	3989	trace "loading extensions";
2852	cf::load_extensions;	3990	cf::load_extensions;
2853		3991
		3992	if ($REATTACH_ON_RELOAD) {
2854	warn "reattaching attachments to objects/players";	3993	trace "reattaching attachments to objects/players";
2855	_global_reattach; # objects, sockets	3994	_global_reattach; # objects, sockets
2856	warn "reattaching attachments to maps";	3995	trace "reattaching attachments to maps";
2857	reattach $_ for values %MAP;	3996	reattach $_ for values %MAP;
2858	warn "reattaching attachments to players";	3997	trace "reattaching attachments to players";
2859	reattach $_ for values %PLAYER;	3998	reattach $_ for values %PLAYER;
		3999	}
2860		4000
		4001	trace "running post_init jobs";
		4002	(pop @POST_INIT)->(1) while @POST_INIT;
		4003
2861	warn "leaving sync_job";	4004	trace "leaving sync_job";
2862		4005
2863	1	4006	1
2864	} or do {	4007	} or do {
2865	warn $@;	4008	error $@;
2866	warn "error while reloading, exiting.";	4009	cf::cleanup "error while reloading, exiting.";
2867	exit 1;	4010	};
		4011
		4012	info "reloaded";
		4013	--$RELOAD;
2868	};	4014	}
2869		4015
2870	warn "reloaded";	4016	$t1 = AE::time - $t1;
		4017	info "reload completed in ${t1}s\n";
2871	};	4018	};
2872		4019
2873	our $RELOAD_WATCHER; # used only during reload	4020	our $RELOAD_WATCHER; # used only during reload
2874		4021
2875	sub reload_perl() {	4022	sub reload_perl() {
2876	# doing reload synchronously and two reloads happen back-to-back,	4023	# doing reload synchronously and two reloads happen back-to-back,
2877	# coro crashes during coro_state_free->destroy here.	4024	# coro crashes during coro_state_free->destroy here.
2878		4025
2879	$RELOAD_WATCHER ||= Event->timer (	4026	$RELOAD_WATCHER ||= cf::async {
2880	reentrant => 0,	4027	Coro::AIO::aio_wait cache_extensions;
2881	after => 0,	4028
2882	data => WF_AUTOCANCEL,	4029	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
2883	cb => sub {
2884	do_reload_perl;	4030	do_reload_perl;
2885	undef $RELOAD_WATCHER;	4031	undef $RELOAD_WATCHER;
2886	},	4032	};
2887	);	4033	};
2888	}	4034	}
2889		4035
2890	register_command "reload" => sub {	4036	register_command "reload" => sub {
2891	my ($who, $arg) = @_;	4037	my ($who, $arg) = @_;
2892		4038
2893	if ($who->flag (FLAG_WIZ)) {	4039	if ($who->flag (FLAG_WIZ)) {
2894	$who->message ("reloading server.");	4040	$who->message ("reloading server.");
		4041	async {
		4042	$Coro::current->{desc} = "perl_reload";
2895	async { reload_perl };	4043	reload_perl;
		4044	};
2896	}	4045	}
2897	};	4046	};
2898		4047
2899	unshift @INC, $LIBDIR;	4048	#############################################################################
2900		4049
2901	my $bug_warning = 0;	4050	my $bug_warning = 0;
2902		4051
2903	our @WAIT_FOR_TICK;	4052	our @WAIT_FOR_TICK;
2904	our @WAIT_FOR_TICK_BEGIN;	4053	our @WAIT_FOR_TICK_BEGIN;
2905		4054
2906	sub wait_for_tick {	4055	sub wait_for_tick {
2907	return unless $TICK_WATCHER->is_active;
2908	return if $Coro::current == $Coro::main;	4056	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2909		4057
2910	my $signal = new Coro::Signal;	4058	my $signal = new Coro::Signal;
2911	push @WAIT_FOR_TICK, $signal;	4059	push @WAIT_FOR_TICK, $signal;
2912	$signal->wait;	4060	$signal->wait;
2913	}	4061	}
2914		4062
2915	sub wait_for_tick_begin {	4063	sub wait_for_tick_begin {
2916	return unless $TICK_WATCHER->is_active;
2917	return if $Coro::current == $Coro::main;	4064	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2918		4065
2919	my $signal = new Coro::Signal;	4066	my $signal = new Coro::Signal;
2920	push @WAIT_FOR_TICK_BEGIN, $signal;	4067	push @WAIT_FOR_TICK_BEGIN, $signal;
2921	$signal->wait;	4068	$signal->wait;
2922	}	4069	}
2923		4070
2924	my $min = 1e6;#d#	4071	sub tick {
2925	my $avg = 10;
2926	$TICK_WATCHER = Event->timer (
2927	reentrant => 0,
2928	parked => 1,
2929	prio => 0,
2930	at => $NEXT_TICK || $TICK,
2931	data => WF_AUTOCANCEL,
2932	cb => sub {
2933	if ($Coro::current != $Coro::main) {	4072	if ($Coro::current != $Coro::main) {
2934	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	4073	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2935	unless ++$bug_warning > 10;	4074	unless ++$bug_warning > 10;
2936	return;	4075	return;
2937	}	4076	}
2938		4077
2939	$NOW = $tick_start = Event::time;
2940
2941	cf::server_tick; # one server iteration	4078	cf::server_tick; # one server iteration
2942		4079
2943	0 && sync_job {#d#	4080	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2944	for(1..10) {
2945	my $t = Event::time;
2946	my $map = my $map = new_from_path cf::map "/tmp/x.map"
2947	or die;
2948		4081
2949	$map->width (50);	4082	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2950	$map->height (50);	4083	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2951	$map->alloc;	4084	Coro::async_pool {
2952	$map->_load_objects ("/tmp/x.map", 1);	4085	$Coro::current->{desc} = "runtime saver";
2953	my $t = Event::time - $t;	4086	write_runtime_sync
2954		4087	or error "ERROR: unable to write runtime file: $!";
2955	#next unless $t < 0.0013;#d#
2956	if ($t < $min) {
2957	$min = $t;
2958	}
2959	$avg = $avg * 0.99 + $t * 0.01;
2960	}
2961	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
2962	exit 0;
2963	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2964	};	4088	};
		4089	}
2965		4090
2966	$RUNTIME += $TICK;
2967	$NEXT_TICK += $TICK;
2968
2969	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2970	$NEXT_RUNTIME_WRITE = $NOW + 10;
2971	Coro::async_pool {
2972	write_runtime
2973	or warn "ERROR: unable to write runtime file: $!";
2974	};
2975	}
2976
2977	# my $AFTER = Event::time;
2978	# warn $AFTER - $NOW;#d#
2979
2980	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	4091	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2981	$sig->send;	4092	$sig->send;
2982	}	4093	}
2983	while (my $sig = shift @WAIT_FOR_TICK) {	4094	while (my $sig = shift @WAIT_FOR_TICK) {
2984	$sig->send;	4095	$sig->send;
2985	}	4096	}
2986		4097
2987	$NOW = Event::time;	4098	$LOAD = ($NOW - $TICK_START) / $TICK;
2988
2989	# if we are delayed by four ticks or more, skip them all
2990	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2991
2992	$TICK_WATCHER->at ($NEXT_TICK);
2993	$TICK_WATCHER->start;
2994
2995	$LOAD = ($NOW - $tick_start) / $TICK;
2996	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;	4099	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2997		4100
2998	_post_tick;	4101	if (0) {
2999		4102	if ($NEXT_TICK) {
3000		4103	my $jitter = $TICK_START - $NEXT_TICK;
		4104	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4105	debug "jitter $JITTER\n";#d#
		4106	}
3001	},	4107	}
3002	);	4108	}
3003		4109
3004	{	4110	{
3005	BDB::max_poll_time $TICK * 0.1;	4111	# configure BDB
3006	$BDB_POLL_WATCHER = Event->io (	4112
3007	reentrant => 0,
3008	fd => BDB::poll_fileno,
3009	poll => 'r',
3010	prio => 0,
3011	data => WF_AUTOCANCEL,
3012	cb => \&BDB::poll_cb,
3013	);
3014	BDB::min_parallel 8;	4113	BDB::min_parallel 16;
3015		4114	BDB::max_poll_reqs $TICK * 0.1;
3016	BDB::set_sync_prepare {	4115	$AnyEvent::BDB::WATCHER->priority (1);
3017	my $status;
3018	my $current = $Coro::current;
3019	(
3020	sub {
3021	$status = $!;
3022	$current->ready; undef $current;
3023	},
3024	sub {
3025	Coro::schedule while defined $current;
3026	$! = $status;
3027	},
3028	)
3029	};
3030		4116
3031	unless ($DB_ENV) {	4117	unless ($DB_ENV) {
3032	$DB_ENV = BDB::db_env_create;	4118	$DB_ENV = BDB::db_env_create;
		4119	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4120	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4121	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4122	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4123	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
3033		4124
3034	cf::sync_job {	4125	cf::sync_job {
3035	eval {	4126	eval {
3036	BDB::db_env_open	4127	BDB::db_env_open
3037	$DB_ENV,	4128	$DB_ENV,
…		…
3039	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4130	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
3040	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4131	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
3041	0666;	4132	0666;
3042		4133
3043	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	4134	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
3044
3045	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
3046	$DB_ENV->set_lk_detect;
3047	};	4135	};
3048		4136
3049	cf::cleanup "db_env_open(db): $@" if $@;	4137	cf::cleanup "db_env_open(db): $@" if $@;
3050	};	4138	};
3051	}	4139	}
		4140
		4141	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4142	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4143	};
		4144	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4145	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4146	};
		4147	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4148	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4149	};
3052	}	4150	}
3053		4151
3054	{	4152	{
		4153	# configure IO::AIO
		4154
3055	IO::AIO::min_parallel 8;	4155	IO::AIO::min_parallel 8;
3056
3057	undef $Coro::AIO::WATCHER;
3058	IO::AIO::max_poll_time $TICK * 0.1;	4156	IO::AIO::max_poll_time $TICK * 0.1;
3059	$AIO_POLL_WATCHER = Event->io (	4157	undef $AnyEvent::AIO::WATCHER;
3060	reentrant => 0,
3061	data => WF_AUTOCANCEL,
3062	fd => IO::AIO::poll_fileno,
3063	poll => 'r',
3064	prio => 6,
3065	cb => \&IO::AIO::poll_cb,
3066	);
3067	}	4158	}
3068		4159
3069	my $_log_backtrace;	4160	my $_log_backtrace;
3070		4161
3071	sub _log_backtrace {	4162	sub _log_backtrace {
…		…
3074	$msg =~ s/\n//;	4165	$msg =~ s/\n//;
3075		4166
3076	# limit the # of concurrent backtraces	4167	# limit the # of concurrent backtraces
3077	if ($_log_backtrace < 2) {	4168	if ($_log_backtrace < 2) {
3078	++$_log_backtrace;	4169	++$_log_backtrace;
		4170	my $perl_bt = Carp::longmess $msg;
3079	async {	4171	async {
		4172	$Coro::current->{desc} = "abt $msg";
		4173
3080	my @bt = fork_call {	4174	my @bt = fork_call {
3081	@addr = map { sprintf "%x", $_ } @addr;	4175	@addr = map { sprintf "%x", $_ } @addr;
3082	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;	4176	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
3083	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"	4177	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
3084	or die "addr2line: $!";	4178	or die "addr2line: $!";
…		…
3092	}	4186	}
3093		4187
3094	@funcs	4188	@funcs
3095	};	4189	};
3096		4190
3097	LOG llevInfo, "[ABT] $msg\n";	4191	LOG llevInfo, "[ABT] $perl_bt\n";
		4192	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
3098	LOG llevInfo, "[ABT] $_\n" for @bt;	4193	LOG llevInfo, "[ABT] $_\n" for @bt;
3099	--$_log_backtrace;	4194	--$_log_backtrace;
3100	};	4195	};
3101	} else {	4196	} else {
3102	LOG llevInfo, "[ABT] $msg\n";	4197	LOG llevInfo, "[ABT] $msg\n";
3103	LOG llevInfo, "[ABT] [suppressed]\n";	4198	LOG llevInfo, "[ABT] [suppressed]\n";
3104	}	4199	}
3105	}	4200	}
3106		4201
3107	# load additional modules	4202	# load additional modules
3108	use cf::pod;	4203	require "cf/$_.pm" for @EXTRA_MODULES;
		4204	cf::_connect_to_perl_2;
3109		4205
3110	END { cf::emergency_save }	4206	END { cf::emergency_save }
3111		4207
3112	1	4208	1
3113		4209

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines