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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.267 by root, Sat May 19 00:08:11 2007 UTC vs.
Revision 1.550 by root, Fri May 14 22:56:47 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 incloader);
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 thread
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	=cut
		242
		243	sub wait_for_tick();
		244	sub wait_for_tick_begin();
		245
		246	=item @cf::INVOKE_RESULTS
		247
		248	This array contains the results of the last C<invoke ()> call. When
		249	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		250	that call.
		251
		252	=item %cf::REFLECT
		253
		254	Contains, for each (C++) class name, a hash reference with information
		255	about object members (methods, scalars, arrays and flags) and other
		256	metadata, which is useful for introspection.
		257
169	=back	258	=back
170		259
171	=cut	260	=cut
172		261
173	BEGIN {	262	sub error(@) { LOG llevError, join "", @_ }
174	*CORE::GLOBAL::warn = sub {	263	sub warn (@) { LOG llevWarn , join "", @_ }
		264	sub info (@) { LOG llevInfo , join "", @_ }
		265	sub debug(@) { LOG llevDebug, join "", @_ }
		266	sub trace(@) { LOG llevTrace, join "", @_ }
		267
		268	$Coro::State::WARNHOOK = sub {
175	my $msg = join "", @_;	269	my $msg = join "", @_;
176		270
177	$msg .= "\n"	271	$msg .= "\n"
178	unless $msg =~ /\n$/;	272	unless $msg =~ /\n$/;
179		273
180	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	274	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
181		275
182	utf8::encode $msg;
183	LOG llevError, $msg;	276	LOG llevWarn, $msg;
184	};	277	};
185	}	278
		279	$Coro::State::DIEHOOK = sub {
		280	return unless $^S eq 0; # "eq", not "=="
		281
		282	error Carp::longmess $_[0];
		283
		284	if (in_main) {#d#
		285	error "DIEHOOK called in main context, Coro bug?\n";#d#
		286	return;#d#
		287	}#d#
		288
		289	# kill coroutine otherwise
		290	Coro::terminate
		291	};
186		292
187	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	293	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
188	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	294	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
189	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	295	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
190	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	296	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
191	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	297	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		298	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
192	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	299	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
193		300
194	# we bless all objects into (empty) derived classes to force a method lookup	301	# we bless all objects into (empty) derived classes to force a method lookup
195	# within the Safe compartment.	302	# within the Safe compartment.
196	for my $pkg (qw(	303	for my $pkg (qw(
197	cf::global cf::attachable	304	cf::global cf::attachable
198	cf::object cf::object::player	305	cf::object cf::object::player
199	cf::client cf::player	306	cf::client cf::player
200	cf::arch cf::living	307	cf::arch cf::living
		308	cf::map cf::mapspace
201	cf::map cf::party cf::region	309	cf::party cf::region
202	)) {	310	)) {
203	no strict 'refs';
204	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	311	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
205	}	312	}
206		313
207	$Event::DIED = sub {	314	$EV::DIED = sub {
208	warn "error in event callback: @_";	315	Carp::cluck "error in event callback: @_";
209	};	316	};
		317
		318	#############################################################################
210		319
211	=head2 UTILITY FUNCTIONS	320	=head2 UTILITY FUNCTIONS
212		321
213	=over 4	322	=over 4
214		323
…		…
233	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	342	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
234	$d	343	$d
235	} || "[unable to dump $_[0]: '$@']";	344	} || "[unable to dump $_[0]: '$@']";
236	}	345	}
237		346
238	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
239
240	=item $ref = cf::from_json $json	347	=item $ref = cf::decode_json $json
241		348
242	Converts a JSON string into the corresponding perl data structure.	349	Converts a JSON string into the corresponding perl data structure.
243		350
244	=item $json = cf::to_json $ref	351	=item $json = cf::encode_json $ref
245		352
246	Converts a perl data structure into its JSON representation.	353	Converts a perl data structure into its JSON representation.
247		354
		355	=cut
		356
		357	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		358
		359	sub encode_json($) { $json_coder->encode ($_[0]) }
		360	sub decode_json($) { $json_coder->decode ($_[0]) }
		361
		362	=item $ref = cf::yaml_load $scalar
		363
		364	Same as YAML::XS::Load, but doesn't leak, because it forks (and thus blocks).
		365
		366	=cut
		367
		368	sub fork_call(&@);
		369
		370	sub yaml_load($) {
		371	fork_call { YAML::XS::Load $_[0] } @_
		372	}
		373
		374	=item cf::post_init { BLOCK }
		375
		376	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		377	but I<before> the server starts ticking again.
		378
		379	The codeblock will have a single boolean argument to indicate whether this
		380	is a reload or not.
		381
		382	=cut
		383
		384	sub post_init(&) {
		385	push @POST_INIT, shift;
		386	}
		387
		388	sub _post_init {
		389	trace "running post_init jobs";
		390
		391	# run them in parallel...
		392
		393	my @join;
		394
		395	while () {
		396	push @join, map &Coro::async ($_, 0), @POST_INIT;
		397	@POST_INIT = ();
		398
		399	@join or last;
		400
		401	(pop @join)->join;
		402	}
		403	}
		404
248	=item cf::lock_wait $string	405	=item cf::lock_wait $string
249		406
250	Wait until the given lock is available. See cf::lock_acquire.	407	Wait until the given lock is available. See cf::lock_acquire.
251		408
252	=item my $lock = cf::lock_acquire $string	409	=item my $lock = cf::lock_acquire $string
253		410
254	Wait until the given lock is available and then acquires it and returns	411	Wait until the given lock is available and then acquires it and returns
255	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	412	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
256	for example when the coroutine gets canceled), the lock is automatically	413	for example when the coroutine gets canceled), the lock is automatically
257	returned.	414	returned.
258		415
		416	Locks are *not* recursive, locking from the same coro twice results in a
		417	deadlocked coro.
		418
259	Lock names should begin with a unique identifier (for example, cf::map::find	419	Lock names should begin with a unique identifier (for example, cf::map::find
260	uses map_find and cf::map::load uses map_load).	420	uses map_find and cf::map::load uses map_load).
261		421
262	=item $locked = cf::lock_active $string	422	=item $locked = cf::lock_active $string
263		423
264	Return true if the lock is currently active, i.e. somebody has locked it.	424	Return true if the lock is currently active, i.e. somebody has locked it.
265		425
266	=cut	426	=cut
267		427
268	our %LOCK;	428	our $LOCKS = new Coro::SemaphoreSet;
269		429
270	sub lock_wait($) {	430	sub lock_wait($) {
271	my ($key) = @_;	431	$LOCKS->wait ($_[0]);
272
273	# wait for lock, if any
274	while ($LOCK{$key}) {
275	push @{ $LOCK{$key} }, $Coro::current;
276	Coro::schedule;
277	}
278	}	432	}
279		433
280	sub lock_acquire($) {	434	sub lock_acquire($) {
281	my ($key) = @_;	435	$LOCKS->guard ($_[0])
282
283	# wait, to be sure we are not locked
284	lock_wait $key;
285
286	$LOCK{$key} = [];
287
288	Coro::guard {
289	# wake up all waiters, to be on the safe side
290	$_->ready for @{ delete $LOCK{$key} };
291	}
292	}	436	}
293		437
294	sub lock_active($) {	438	sub lock_active($) {
295	my ($key) = @_;	439	$LOCKS->count ($_[0]) < 1
296
297	! ! $LOCK{$key}
298	}	440	}
299		441
300	sub freeze_mainloop {	442	sub freeze_mainloop {
301	return unless $TICK_WATCHER->is_active;	443	tick_inhibit_inc;
302		444
303	my $guard = Coro::guard {	445	&Guard::guard (\&tick_inhibit_dec);
304	$TICK_WATCHER->start;	446	}
		447
		448	=item cf::periodic $interval, $cb
		449
		450	Like EV::periodic, but randomly selects a starting point so that the actions
		451	get spread over time.
		452
		453	=cut
		454
		455	sub periodic($$) {
		456	my ($interval, $cb) = @_;
		457
		458	my $start = rand List::Util::min 180, $interval;
		459
		460	EV::periodic $start, $interval, 0, $cb
		461	}
		462
		463	=item cf::get_slot $time[, $priority[, $name]]
		464
		465	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		466	This call blocks and returns only when you have at least C<$time> seconds
		467	of cpu time till the next tick. The slot is only valid till the next cede.
		468
		469	The optional C<$name> can be used to identify the job to run. It might be
		470	used for statistical purposes and should identify the same time-class.
		471
		472	Useful for short background jobs.
		473
		474	=cut
		475
		476	our @SLOT_QUEUE;
		477	our $SLOT_QUEUE;
		478	our $SLOT_DECAY = 0.9;
		479
		480	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		481	$SLOT_QUEUE = Coro::async {
		482	$Coro::current->desc ("timeslot manager");
		483
		484	my $signal = new Coro::Signal;
		485	my $busy;
		486
		487	while () {
		488	next_job:
		489
		490	my $avail = cf::till_tick;
		491
		492	for (0 .. $#SLOT_QUEUE) {
		493	if ($SLOT_QUEUE[$_][0] <= $avail) {
		494	$busy = 0;
		495	my $job = splice @SLOT_QUEUE, $_, 1, ();
		496	$job->[2]->send;
		497	Coro::cede;
		498	goto next_job;
		499	} else {
		500	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		501	}
		502	}
		503
		504	if (@SLOT_QUEUE) {
		505	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		506	push @cf::WAIT_FOR_TICK, $signal;
		507	$signal->wait;
		508	} else {
		509	$busy = 0;
		510	Coro::schedule;
		511	}
305	};	512	}
306	$TICK_WATCHER->stop;	513	};
307	$guard	514
		515	sub get_slot($;$$) {
		516	return if tick_inhibit || $Coro::current == $Coro::main;
		517
		518	my ($time, $pri, $name) = @_;
		519
		520	$time = clamp $time, 0.01, $TICK * .6;
		521
		522	my $sig = new Coro::Signal;
		523
		524	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		525	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		526	$SLOT_QUEUE->ready;
		527	$sig->wait;
308	}	528	}
309		529
310	=item cf::async { BLOCK }	530	=item cf::async { BLOCK }
311		531
312	Currently the same as Coro::async_pool, meaning you cannot use	532	Currently the same as Coro::async_pool, meaning you cannot use
…		…
317		537
318	BEGIN { *async = \&Coro::async_pool }	538	BEGIN { *async = \&Coro::async_pool }
319		539
320	=item cf::sync_job { BLOCK }	540	=item cf::sync_job { BLOCK }
321		541
322	The design of crossfire+ requires that the main coro ($Coro::main) is	542	The design of Deliantra requires that the main coroutine ($Coro::main)
323	always able to handle events or runnable, as crossfire+ is only partly	543	is always able to handle events or runnable, as Deliantra is only
324	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	544	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		545	acceptable.
325		546
326	If it must be done, put the blocking parts into C<sync_job>. This will run	547	If it must be done, put the blocking parts into C<sync_job>. This will run
327	the given BLOCK in another coroutine while waiting for the result. The	548	the given BLOCK in another coroutine while waiting for the result. The
328	server will be frozen during this time, so the block should either finish	549	server will be frozen during this time, so the block should either finish
329	fast or be very important.	550	fast or be very important.
…		…
331	=cut	552	=cut
332		553
333	sub sync_job(&) {	554	sub sync_job(&) {
334	my ($job) = @_;	555	my ($job) = @_;
335		556
336	if ($Coro::current == $Coro::main) {	557	if (in_main) {
337	my $time = Event::time;	558	my $time = AE::time;
338		559
339	# this is the main coro, too bad, we have to block	560	# this is the main coro, too bad, we have to block
340	# till the operation succeeds, freezing the server :/	561	# till the operation succeeds, freezing the server :/
341		562
342	# TODO: use suspend/resume instead	563	#LOG llevError, Carp::longmess "sync job";#d#
343	# (but this is cancel-safe)	564
344	my $freeze_guard = freeze_mainloop;	565	my $freeze_guard = freeze_mainloop;
345		566
346	my $busy = 1;	567	my $busy = 1;
347	my @res;	568	my @res;
348		569
349	(async {	570	(async {
		571	$Coro::current->desc ("sync job coro");
350	@res = eval { $job->() };	572	@res = eval { $job->() };
351	warn $@ if $@;	573	error $@ if $@;
352	undef $busy;	574	undef $busy;
353	})->prio (Coro::PRIO_MAX);	575	})->prio (Coro::PRIO_MAX);
354		576
355	while ($busy) {	577	while ($busy) {
356	Coro::cede or Event::one_event;	578	if (Coro::nready) {
		579	Coro::cede_notself;
		580	} else {
		581	EV::loop EV::LOOP_ONESHOT;
357	}	582	}
		583	}
358		584
359	$time = Event::time - $time;	585	my $time = AE::time - $time;
360		586
361	LOG llevError | logBacktrace, Carp::longmess "long sync job"
362	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
363
364	$tick_start += $time; # do not account sync jobs to server load	587	$TICK_START += $time; # do not account sync jobs to server load
365		588
366	wantarray ? @res : $res[0]	589	wantarray ? @res : $res[0]
367	} else {	590	} else {
368	# we are in another coroutine, how wonderful, everything just works	591	# we are in another coroutine, how wonderful, everything just works
369		592
…		…
389	$EXT_CORO{$coro+0} = $coro;	612	$EXT_CORO{$coro+0} = $coro;
390		613
391	$coro	614	$coro
392	}	615	}
393		616
394	sub write_runtime {	617	=item fork_call { }, @args
395	my $runtime = "$LOCALDIR/runtime";
396		618
397	# first touch the runtime file to show we are still running:	619	Executes the given code block with the given arguments in a seperate
398	# the fsync below can take a very very long time.	620	process, returning the results. Everything must be serialisable with
		621	Coro::Storable. May, of course, block. Note that the executed sub may
		622	never block itself or use any form of event handling.
399		623
400	if (my $fh = aio_open $runtime, O_WRONLY, 0) {	624	=cut
401	utime undef, undef, $fh;	625
		626	sub post_fork {
		627	reset_signals;
		628	}
		629
		630	sub fork_call(&@) {
		631	my ($cb, @args) = @_;
		632
		633	# we seemingly have to make a local copy of the whole thing,
		634	# otherwise perl prematurely frees the stuff :/
		635	# TODO: investigate and fix (likely this will be rather laborious)
		636
		637	my @res = Coro::Util::fork_eval {
		638	cf::post_fork;
		639	&$cb
		640	} @args;
		641
		642	wantarray ? @res : $res[-1]
		643	}
		644
		645	sub objinfo {
		646	(
		647	"counter value" => cf::object::object_count,
		648	"objects created" => cf::object::create_count,
		649	"objects destroyed" => cf::object::destroy_count,
		650	"freelist size" => cf::object::free_count,
		651	"allocated objects" => cf::object::objects_size,
		652	"active objects" => cf::object::actives_size,
		653	)
		654	}
		655
		656	=item $coin = coin_from_name $name
		657
		658	=cut
		659
		660	our %coin_alias = (
		661	"silver" => "silvercoin",
		662	"silvercoin" => "silvercoin",
		663	"silvercoins" => "silvercoin",
		664	"gold" => "goldcoin",
		665	"goldcoin" => "goldcoin",
		666	"goldcoins" => "goldcoin",
		667	"platinum" => "platinacoin",
		668	"platinumcoin" => "platinacoin",
		669	"platinumcoins" => "platinacoin",
		670	"platina" => "platinacoin",
		671	"platinacoin" => "platinacoin",
		672	"platinacoins" => "platinacoin",
		673	"royalty" => "royalty",
		674	"royalties" => "royalty",
		675	);
		676
		677	sub coin_from_name($) {
		678	$coin_alias{$_[0]}
		679	? cf::arch::find $coin_alias{$_[0]}
		680	: undef
		681	}
		682
		683	=item $value = cf::db_get $family => $key
		684
		685	Returns a single value from the environment database.
		686
		687	=item cf::db_put $family => $key => $value
		688
		689	Stores the given C<$value> in the family. It can currently store binary
		690	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		691
		692	=item $db = cf::db_table "name"
		693
		694	Create and/or open a new database table. The string must not be "db" and must be unique
		695	within each server.
		696
		697	=cut
		698
		699	sub db_table($) {
		700	cf::error "db_get called from main context"
		701	if $Coro::current == $Coro::main;
		702
		703	my ($name) = @_;
		704	my $db = BDB::db_create $DB_ENV;
		705
		706	eval {
		707	$db->set_flags (BDB::CHKSUM);
		708
		709	utf8::encode $name;
		710	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		711	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		712	cf::cleanup "db_open(db): $!" if $!;
402	}	713	};
		714	cf::cleanup "db_open(db): $@" if $@;
403		715
404	my $guard = cf::lock_acquire "write_runtime";	716	$db
		717	}
405		718
406	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	719	our $DB;
407	or return;
408		720
409	my $value = $cf::RUNTIME + 90 + 10;	721	sub db_init {
410	# 10 is the runtime save interval, for a monotonic clock	722	$DB ||= db_table "db";
411	# 60 allows for the watchdog to kill the server.	723	}
412		724
413	(aio_write $fh, 0, (length $value), $value, 0) <= 0	725	sub db_get($$) {
414	and return;	726	my $key = "$_[0]/$_[1]";
415		727
416	# always fsync - this file is important	728	cf::error "db_get called from main context"
417	aio_fsync $fh	729	if $Coro::current == $Coro::main;
418	and return;
419		730
420	# touch it again to show we are up-to-date	731	BDB::db_get $DB, undef, $key, my $data;
421	utime undef, undef, $fh;
422		732
423	close $fh	733	$! ? ()
424	or return;	734	: $data
		735	}
425		736
426	aio_rename "$runtime~", $runtime	737	sub db_put($$$) {
427	and return;	738	BDB::dbreq_pri 4;
		739	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		740	}
428		741
429	warn "runtime file written.\n";#d#	742	=item cf::cache $id => [$paths...], $processversion => $process
430		743
		744	Generic caching function that returns the value of the resource $id,
		745	caching and regenerating as required.
		746
		747	This function can block.
		748
		749	=cut
		750
		751	sub cache {
		752	my ($id, $src, $processversion, $process) = @_;
		753
		754	my $meta =
		755	join "\x00",
		756	$processversion,
		757	map {
		758	aio_stat $_
		759	and Carp::croak "$_: $!";
		760
		761	($_, (stat _)[7,9])
		762	} @$src;
		763
		764	my $dbmeta = db_get cache => "$id/meta";
		765	if ($dbmeta ne $meta) {
		766	# changed, we may need to process
		767
		768	my @data;
		769	my $md5;
		770
		771	for (0 .. $#$src) {
		772	0 <= aio_load $src->[$_], $data[$_]
		773	or Carp::croak "$src->[$_]: $!";
		774	}
		775
		776	# if processing is expensive, check
		777	# checksum first
		778	if (1) {
		779	$md5 =
		780	join "\x00",
		781	$processversion,
		782	map {
		783	cf::cede_to_tick;
		784	($src->[$_], Digest::MD5::md5_hex $data[$_])
		785	} 0.. $#$src;
		786
		787
		788	my $dbmd5 = db_get cache => "$id/md5";
		789	if ($dbmd5 eq $md5) {
		790	db_put cache => "$id/meta", $meta;
		791
		792	return db_get cache => "$id/data";
		793	}
		794	}
		795
		796	my $t1 = Time::HiRes::time;
		797	my $data = $process->(\@data);
		798	my $t2 = Time::HiRes::time;
		799
		800	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		801
		802	db_put cache => "$id/data", $data;
		803	db_put cache => "$id/md5" , $md5;
		804	db_put cache => "$id/meta", $meta;
		805
		806	return $data;
431	1	807	}
		808
		809	db_get cache => "$id/data"
432	}	810	}
433		811
434	=item cf::datalog type => key => value, ...	812	=item cf::datalog type => key => value, ...
435		813
436	Log a datalog packet of the given type with the given key-value pairs.	814	Log a datalog packet of the given type with the given key-value pairs.
437		815
438	=cut	816	=cut
439		817
440	sub datalog($@) {	818	sub datalog($@) {
441	my ($type, %kv) = @_;	819	my ($type, %kv) = @_;
442	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });	820	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
443	}	821	}
444		822
445	=back	823	=back
446		824
447	=cut	825	=cut
448		826
449	#############################################################################	827	#############################################################################
450		828
451	=head2 ATTACHABLE OBJECTS	829	=head2 ATTACHABLE OBJECTS
452		830
453	Many objects in crossfire are so-called attachable objects. That means you can	831	Many objects in deliantra are so-called attachable objects. That means you can
454	attach callbacks/event handlers (a collection of which is called an "attachment")	832	attach callbacks/event handlers (a collection of which is called an "attachment")
455	to it. All such attachable objects support the following methods.	833	to it. All such attachable objects support the following methods.
456		834
457	In the following description, CLASS can be any of C<global>, C<object>	835	In the following description, CLASS can be any of C<global>, C<object>
458	C<player>, C<client> or C<map> (i.e. the attachable objects in	836	C<player>, C<client> or C<map> (i.e. the attachable objects in
459	crossfire+).	837	Deliantra).
460		838
461	=over 4	839	=over 4
462		840
463	=item $attachable->attach ($attachment, key => $value...)	841	=item $attachable->attach ($attachment, key => $value...)
464		842
…		…
508	=item cf::CLASS::attachment $name, ...	886	=item cf::CLASS::attachment $name, ...
509		887
510	Register an attachment by C<$name> through which attachable objects of the	888	Register an attachment by C<$name> through which attachable objects of the
511	given CLASS can refer to this attachment.	889	given CLASS can refer to this attachment.
512		890
513	Some classes such as crossfire maps and objects can specify attachments	891	Some classes such as deliantra maps and objects can specify attachments
514	that are attached at load/instantiate time, thus the need for a name.	892	that are attached at load/instantiate time, thus the need for a name.
515		893
516	These calls expect any number of the following handler/hook descriptions:	894	These calls expect any number of the following handler/hook descriptions:
517		895
518	=over 4	896	=over 4
…		…
642		1020
643	} elsif (exists $cb_id{$type}) {	1021	} elsif (exists $cb_id{$type}) {
644	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	1022	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
645		1023
646	} elsif (ref $type) {	1024	} elsif (ref $type) {
647	warn "attaching objects not supported, ignoring.\n";	1025	error "attaching objects not supported, ignoring.\n";
648		1026
649	} else {	1027	} else {
650	shift @arg;	1028	shift @arg;
651	warn "attach argument '$type' not supported, ignoring.\n";	1029	error "attach argument '$type' not supported, ignoring.\n";
652	}	1030	}
653	}	1031	}
654	}	1032	}
655		1033
656	sub _object_attach {	1034	sub _object_attach {
…		…
666	_attach $registry, $klass, @attach;	1044	_attach $registry, $klass, @attach;
667	}	1045	}
668		1046
669	$obj->{$name} = \%arg;	1047	$obj->{$name} = \%arg;
670	} else {	1048	} else {
671	warn "object uses attachment '$name' that is not available, postponing.\n";	1049	info "object uses attachment '$name' which is not available, postponing.\n";
672	}	1050	}
673		1051
674	$obj->{_attachment}{$name} = undef;	1052	$obj->{_attachment}{$name} = undef;
675	}	1053	}
676		1054
…		…
716	";	1094	";
717	die if $@;	1095	die if $@;
718	}	1096	}
719		1097
720	our $override;	1098	our $override;
721	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1099	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
722		1100
723	sub override {	1101	sub override {
724	$override = 1;	1102	$override = 1;
725	@invoke_results = ();	1103	@INVOKE_RESULTS = (@_);
726	}	1104	}
727		1105
728	sub do_invoke {	1106	sub do_invoke {
729	my $event = shift;	1107	my $event = shift;
730	my $callbacks = shift;	1108	my $callbacks = shift;
731		1109
732	@invoke_results = ();	1110	@INVOKE_RESULTS = ();
733		1111
734	local $override;	1112	local $override;
735		1113
736	for (@$callbacks) {	1114	for (@$callbacks) {
737	eval { &{$_->[1]} };	1115	eval { &{$_->[1]} };
738		1116
739	if ($@) {	1117	if ($@) {
740	warn "$@";
741	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1118	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
742	override;	1119	override;
743	}	1120	}
744		1121
745	return 1 if $override;	1122	return 1 if $override;
746	}	1123	}
747		1124
748	0	1125	0
749	}	1126	}
750		1127
751	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1128	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
752		1129
753	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1130	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
754		1131
755	Generate an object-specific event with the given arguments.	1132	Generate an object-specific event with the given arguments.
756		1133
757	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1134	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
758	removed in future versions), and there is no public API to access override	1135	removed in future versions), and there is no public API to access override
759	results (if you must, access C<@cf::invoke_results> directly).	1136	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
760		1137
761	=back	1138	=back
762		1139
763	=cut	1140	=cut
764		1141
765	#############################################################################	1142	#############################################################################
766	# object support	1143	# object support
		1144
		1145	sub _object_equal($$);
		1146	sub _object_equal($$) {
		1147	my ($a, $b) = @_;
		1148
		1149	return 0 unless (ref $a) eq (ref $b);
		1150
		1151	if ("HASH" eq ref $a) {
		1152	my @ka = keys %$a;
		1153	my @kb = keys %$b;
		1154
		1155	return 0 if @ka != @kb;
		1156
		1157	for (0 .. $#ka) {
		1158	return 0 unless $ka[$_] eq $kb[$_];
		1159	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1160	}
		1161
		1162	} elsif ("ARRAY" eq ref $a) {
		1163
		1164	return 0 if @$a != @$b;
		1165
		1166	for (0 .. $#$a) {
		1167	return 0 unless _object_equal $a->[$_], $b->[$_];
		1168	}
		1169
		1170	} elsif ($a ne $b) {
		1171	return 0;
		1172	}
		1173
		1174	1
		1175	}
		1176
		1177	our $SLOW_MERGES;#d#
		1178	sub _can_merge {
		1179	my ($ob1, $ob2) = @_;
		1180
		1181	++$SLOW_MERGES;#d#
		1182
		1183	# we do the slow way here
		1184	return _object_equal $ob1, $ob2
		1185	}
767		1186
768	sub reattach {	1187	sub reattach {
769	# basically do the same as instantiate, without calling instantiate	1188	# basically do the same as instantiate, without calling instantiate
770	my ($obj) = @_;	1189	my ($obj) = @_;
771		1190
		1191	# no longer needed after getting rid of delete_package?
772	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1192	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
773		1193
774	my $registry = $obj->registry;	1194	my $registry = $obj->registry;
775		1195
776	@$registry = ();	1196	@$registry = ();
777		1197
…		…
782	for (@$attach) {	1202	for (@$attach) {
783	my ($klass, @attach) = @$_;	1203	my ($klass, @attach) = @$_;
784	_attach $registry, $klass, @attach;	1204	_attach $registry, $klass, @attach;
785	}	1205	}
786	} else {	1206	} else {
787	warn "object uses attachment '$name' that is not available, postponing.\n";	1207	info "object uses attachment '$name' that is not available, postponing.\n";
788	}	1208	}
789	}	1209	}
790	}	1210	}
791		1211
792	cf::attachable->attach (	1212	cf::attachable->attach (
793	prio => -1000000,	1213	prio => -1000000,
794	on_instantiate => sub {	1214	on_instantiate => sub {
795	my ($obj, $data) = @_;	1215	my ($obj, $data) = @_;
796		1216
797	$data = from_json $data;	1217	$data = decode_json $data;
798		1218
799	for (@$data) {	1219	for (@$data) {
800	my ($name, $args) = @$_;	1220	my ($name, $args) = @$_;
801		1221
802	$obj->attach ($name, %{$args || {} });	1222	$obj->attach ($name, %{$args || {} });
…		…
818	sub object_freezer_save {	1238	sub object_freezer_save {
819	my ($filename, $rdata, $objs) = @_;	1239	my ($filename, $rdata, $objs) = @_;
820		1240
821	sync_job {	1241	sync_job {
822	if (length $$rdata) {	1242	if (length $$rdata) {
		1243	utf8::decode (my $decname = $filename);
823	warn sprintf "saving %s (%d,%d)\n",	1244	trace sprintf "saving %s (%d,%d)\n",
824	$filename, length $$rdata, scalar @$objs;	1245	$decname, length $$rdata, scalar @$objs
		1246	if $VERBOSE_IO;
825		1247
826	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1248	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
827	chmod SAVE_MODE, $fh;	1249	aio_chmod $fh, SAVE_MODE;
828	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1250	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
829	aio_fsync $fh if $cf::USE_FSYNC;	1251	if ($cf::USE_FSYNC) {
		1252	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;
		1253	aio_fsync $fh;
		1254	}
830	close $fh;	1255	aio_close $fh;
831		1256
832	if (@$objs) {	1257	if (@$objs) {
833	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1258	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
834	chmod SAVE_MODE, $fh;	1259	aio_chmod $fh, SAVE_MODE;
835	my $data = Storable::nfreeze { version => 1, objs => $objs };	1260	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
836	aio_write $fh, 0, (length $data), $data, 0;	1261	aio_write $fh, 0, (length $data), $data, 0;
837	aio_fsync $fh if $cf::USE_FSYNC;	1262	if ($cf::USE_FSYNC) {
		1263	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;
		1264	aio_fsync $fh;
		1265	}
838	close $fh;	1266	aio_close $fh;
839	aio_rename "$filename.pst~", "$filename.pst";	1267	aio_rename "$filename.pst~", "$filename.pst";
840	}	1268	}
841	} else {	1269	} else {
842	aio_unlink "$filename.pst";	1270	aio_unlink "$filename.pst";
843	}	1271	}
844		1272
845	aio_rename "$filename~", $filename;	1273	aio_rename "$filename~", $filename;
		1274
		1275	$filename =~ s%/[^/]+$%%;
		1276	aio_pathsync $filename if $cf::USE_FSYNC;
846	} else {	1277	} else {
847	warn "FATAL: $filename~: $!\n";	1278	error "unable to save objects: $filename~: $!\n";
848	}	1279	}
849	} else {	1280	} else {
850	aio_unlink $filename;	1281	aio_unlink $filename;
851	aio_unlink "$filename.pst";	1282	aio_unlink "$filename.pst";
852	}	1283	}
853	}	1284	};
854	}	1285	}
855		1286
856	sub object_freezer_as_string {	1287	sub object_freezer_as_string {
857	my ($rdata, $objs) = @_;	1288	my ($rdata, $objs) = @_;
858		1289
…		…
870	or return;	1301	or return;
871		1302
872	unless (aio_stat "$filename.pst") {	1303	unless (aio_stat "$filename.pst") {
873	(aio_load "$filename.pst", $av) >= 0	1304	(aio_load "$filename.pst", $av) >= 0
874	or return;	1305	or return;
		1306
875	$av = eval { (Storable::thaw $av)->{objs} };	1307	my $st = eval { Coro::Storable::thaw $av };
		1308	$av = $st->{objs};
876	}	1309	}
877		1310
		1311	utf8::decode (my $decname = $filename);
878	warn sprintf "loading %s (%d)\n",	1312	trace sprintf "loading %s (%d,%d)\n",
879	$filename, length $data, scalar @{$av || []};#d#	1313	$decname, length $data, scalar @{$av || []}
		1314	if $VERBOSE_IO;
		1315
880	return ($data, $av);	1316	($data, $av)
881	}	1317	}
		1318
		1319	=head2 COMMAND CALLBACKS
		1320
		1321	=over 4
		1322
		1323	=cut
882		1324
883	#############################################################################	1325	#############################################################################
884	# command handling &c	1326	# command handling &c
885		1327
886	=item cf::register_command $name => \&callback($ob,$args);	1328	=item cf::register_command $name => \&callback($ob,$args);
…		…
899	push @{ $COMMAND{$name} }, [$caller, $cb];	1341	push @{ $COMMAND{$name} }, [$caller, $cb];
900	}	1342	}
901		1343
902	=item cf::register_extcmd $name => \&callback($pl,$packet);	1344	=item cf::register_extcmd $name => \&callback($pl,$packet);
903		1345
904	Register a callbackf ro execution when the client sends an extcmd packet.	1346	Register a callback for execution when the client sends an (synchronous)
		1347	extcmd packet. Ext commands will be processed in the order they are
		1348	received by the server, like other user commands. The first argument is
		1349	the logged-in player. Ext commands can only be processed after a player
		1350	has logged in successfully.
905		1351
906	If the callback returns something, it is sent back as if reply was being	1352	If the callback returns something, it is sent back as if reply was being
907	called.	1353	called.
908		1354
		1355	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1356
		1357	Register a callback for execution when the client sends an (asynchronous)
		1358	exticmd packet. Exti commands are processed by the server as soon as they
		1359	are received, i.e. out of order w.r.t. other commands. The first argument
		1360	is a client socket. Exti commands can be received anytime, even before
		1361	log-in.
		1362
		1363	If the callback returns something, it is sent back as if reply was being
		1364	called.
		1365
909	=cut	1366	=cut
910		1367
911	sub register_extcmd {	1368	sub register_extcmd {
912	my ($name, $cb) = @_;	1369	my ($name, $cb) = @_;
913		1370
914	$EXTCMD{$name} = $cb;	1371	$EXTCMD{$name} = $cb;
915	}	1372	}
916		1373
		1374	sub register_exticmd {
		1375	my ($name, $cb) = @_;
		1376
		1377	$EXTICMD{$name} = $cb;
		1378	}
		1379
		1380	use File::Glob ();
		1381
917	cf::player->attach (	1382	cf::player->attach (
918	on_command => sub {	1383	on_unknown_command => sub {
919	my ($pl, $name, $params) = @_;	1384	my ($pl, $name, $params) = @_;
920		1385
921	my $cb = $COMMAND{$name}	1386	my $cb = $COMMAND{$name}
922	or return;	1387	or return;
923		1388
…		…
928	cf::override;	1393	cf::override;
929	},	1394	},
930	on_extcmd => sub {	1395	on_extcmd => sub {
931	my ($pl, $buf) = @_;	1396	my ($pl, $buf) = @_;
932		1397
933	my $msg = eval { from_json $buf };	1398	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
934		1399
935	if (ref $msg) {	1400	if (ref $msg) {
		1401	my ($type, $reply, @payload) =
		1402	"ARRAY" eq ref $msg
		1403	? @$msg
		1404	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1405
		1406	my @reply;
		1407
936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1408	if (my $cb = $EXTCMD{$type}) {
937	if (my %reply = $cb->($pl, $msg)) {	1409	@reply = $cb->($pl, @payload);
938	$pl->ext_reply ($msg->{msgid}, %reply);
939	}
940	}	1410	}
		1411
		1412	$pl->ext_reply ($reply, @reply)
		1413	if $reply;
		1414
941	} else {	1415	} else {
942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1416	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
943	}	1417	}
944		1418
945	cf::override;	1419	cf::override;
946	},	1420	},
947	);	1421	);
948		1422
		1423	# "readahead" all extensions
949	sub load_extension {	1424	sub cache_extensions {
950	my ($path) = @_;	1425	my $grp = IO::AIO::aio_group;
951		1426
952	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1427	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
953	my $base = $1;	1428	for (grep /\.ext$/, @{$_[0]}) {
954	my $pkg = $1;	1429	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
955	$pkg =~ s/[^[:word:]]/_/g;
956	$pkg = "ext::$pkg";
957
958	warn "... loading '$path' into '$pkg'\n";
959
960	open my $fh, "<:utf8", $path
961	or die "$path: $!";
962
963	my $source =
964	"package $pkg; use strict; use utf8;\n"
965	. "#line 1 \"$path\"\n{\n"
966	. (do { local $/; <$fh> })
967	. "\n};\n1";
968
969	unless (eval $source) {
970	my $msg = $@ ? "$path: $@\n"
971	: "extension disabled.\n";
972	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
973	warn $@;
974	warn "mandatory extension failed to load, exiting.\n";
975	exit 1;
976	}	1430	}
977	die $@;
978	}	1431	};
979		1432
980	push @EXTS, $pkg;	1433	$grp
981	}	1434	}
982		1435
983	sub load_extensions {	1436	sub load_extensions {
		1437	info "loading extensions...";
		1438
		1439	cf::sync_job {
		1440	my %todo;
		1441
984	for my $ext (<$LIBDIR/*.ext>) {	1442	for my $path (<$LIBDIR/*.ext>) {
985	next unless -r $ext;	1443	next unless -r $path;
986	eval {	1444
987	load_extension $ext;	1445	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1446	my $base = $1;
		1447	my $pkg = $1;
		1448	$pkg =~ s/[^[:word:]]/_/g;
		1449	$pkg = "ext::$pkg";
		1450
		1451	open my $fh, "<:utf8", $path
		1452	or die "$path: $!";
		1453
		1454	my $source = do { local $/; <$fh> };
		1455
		1456	my %ext = (
		1457	path => $path,
		1458	base => $base,
		1459	pkg => $pkg,
		1460	);
		1461
		1462	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1463	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1464
		1465	$ext{source} =
		1466	"package $pkg; use common::sense;\n"
		1467	. "#line 1 \"$path\"\n{\n"
		1468	. $source
		1469	. "\n};\n1";
		1470
		1471	$todo{$base} = \%ext;
		1472	}
		1473
		1474	my $pass = 0;
		1475	my %done;
		1476	while (%todo) {
		1477	my $progress;
		1478
		1479	++$pass;
		1480
		1481	ext:
		1482	while (my ($k, $v) = each %todo) {
		1483	for (split /,\s*/, $v->{meta}{depends}) {
		1484	next ext
		1485	unless exists $done{$_};
		1486	}
		1487
		1488	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1489
		1490	my $active = eval $v->{source};
		1491
		1492	if (length $@) {
		1493	error "$v->{path}: $@\n";
		1494
		1495	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1496	if exists $v->{meta}{mandatory};
		1497
		1498	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1499	delete $todo{$k};
		1500	} else {
		1501	$done{$k} = delete $todo{$k};
		1502	push @EXTS, $v->{pkg};
		1503	$progress = 1;
		1504
		1505	info "$v->{base}: extension inactive.\n"
		1506	unless $active;
		1507	}
988	1	1508	}
989	} or warn "$ext not loaded: $@";	1509
		1510	unless ($progress) {
		1511	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1512
		1513	while (my ($k, $v) = each %todo) {
		1514	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1515	if exists $v->{meta}{mandatory};
		1516	}
		1517	}
		1518	}
990	}	1519	};
991	}	1520	}
992		1521
993	#############################################################################	1522	#############################################################################
994		1523
		1524	=back
		1525
995	=head2 CORE EXTENSIONS	1526	=head2 CORE EXTENSIONS
996		1527
997	Functions and methods that extend core crossfire objects.	1528	Functions and methods that extend core deliantra objects.
998		1529
999	=cut	1530	=cut
1000		1531
1001	package cf::player;	1532	package cf::player;
1002		1533
1003	use Coro::AIO;	1534	use Coro::AIO;
1004		1535
1005	=head3 cf::player	1536	=head3 cf::player
1006		1537
1007	=over 4	1538	=over 4
		1539
		1540	=item cf::player::num_playing
		1541
		1542	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1543
		1544	=cut
		1545
		1546	sub num_playing {
		1547	scalar grep
		1548	$_->ob->map
		1549	&& !$_->hidden
		1550	&& !$_->ob->flag (cf::FLAG_WIZ),
		1551	cf::player::list
		1552	}
1008		1553
1009	=item cf::player::find $login	1554	=item cf::player::find $login
1010		1555
1011	Returns the given player object, loading it if necessary (might block).	1556	Returns the given player object, loading it if necessary (might block).
1012		1557
…		…
1031		1576
1032	sub exists($) {	1577	sub exists($) {
1033	my ($login) = @_;	1578	my ($login) = @_;
1034		1579
1035	$cf::PLAYER{$login}	1580	$cf::PLAYER{$login}
1036	or cf::sync_job { !aio_stat path $login }	1581	or !aio_stat path $login
1037	}	1582	}
1038		1583
1039	sub find($) {	1584	sub find($) {
1040	return $cf::PLAYER{$_[0]} || do {	1585	return $cf::PLAYER{$_[0]} || do {
1041	my $login = $_[0];	1586	my $login = $_[0];
…		…
1048	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1593	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1049	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1594	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1050	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1595	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1051	aio_unlink +(playerdir $login) . "/$login.pl";	1596	aio_unlink +(playerdir $login) . "/$login.pl";
1052		1597
1053	my $pl = load_pl path $login	1598	my $f = new_from_file cf::object::thawer path $login
1054	or return;	1599	or return;
		1600
		1601	my $pl = cf::player::load_pl $f
		1602	or return;
		1603
		1604	local $cf::PLAYER_LOADING{$login} = $pl;
		1605	$f->resolve_delayed_derefs;
1055	$cf::PLAYER{$login} = $pl	1606	$cf::PLAYER{$login} = $pl
1056	}	1607	}
1057	}	1608	}
1058	}	1609	}
		1610
		1611	cf::player->attach (
		1612	on_load => sub {
		1613	my ($pl, $path) = @_;
		1614
		1615	# restore slots saved in save, below
		1616	my $slots = delete $pl->{_slots};
		1617
		1618	$pl->ob->current_weapon ($slots->[0]);
		1619	$pl->combat_ob ($slots->[1]);
		1620	$pl->ranged_ob ($slots->[2]);
		1621	},
		1622	);
1059		1623
1060	sub save($) {	1624	sub save($) {
1061	my ($pl) = @_;	1625	my ($pl) = @_;
1062		1626
1063	return if $pl->{deny_save};	1627	return if $pl->{deny_save};
…		…
1068	return if $pl->{deny_save};	1632	return if $pl->{deny_save};
1069		1633
1070	aio_mkdir playerdir $pl, 0770;	1634	aio_mkdir playerdir $pl, 0770;
1071	$pl->{last_save} = $cf::RUNTIME;	1635	$pl->{last_save} = $cf::RUNTIME;
1072		1636
		1637	cf::get_slot 0.01;
		1638
		1639	# save slots, to be restored later
		1640	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1641
1073	$pl->save_pl ($path);	1642	$pl->save_pl ($path);
1074	Coro::cede;	1643	cf::cede_to_tick;
1075	}	1644	}
1076		1645
1077	sub new($) {	1646	sub new($) {
1078	my ($login) = @_;	1647	my ($login) = @_;
1079		1648
…		…
1085	$cf::PLAYER{$login} = $self;	1654	$cf::PLAYER{$login} = $self;
1086		1655
1087	$self	1656	$self
1088	}	1657	}
1089		1658
		1659	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1660
		1661	=cut
		1662
		1663	sub send_msg {
		1664	my $ns = shift->ns
		1665	or return;
		1666	$ns->send_msg (@_);
		1667	}
		1668
1090	=item $pl->quit_character	1669	=item $pl->quit_character
1091		1670
1092	Nukes the player without looking back. If logged in, the connection will	1671	Nukes the player without looking back. If logged in, the connection will
1093	be destroyed. May block for a long time.	1672	be destroyed. May block for a long time.
1094		1673
…		…
1098	my ($pl) = @_;	1677	my ($pl) = @_;
1099		1678
1100	my $name = $pl->ob->name;	1679	my $name = $pl->ob->name;
1101		1680
1102	$pl->{deny_save} = 1;	1681	$pl->{deny_save} = 1;
1103	$pl->password ("*"); # this should lock out the player until we nuked the dir	1682	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1104		1683
1105	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1684	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->ns;
1106	$pl->deactivate;	1685	$pl->deactivate;
		1686
		1687	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
1107	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1688	$pl->invoke (cf::EVENT_PLAYER_QUIT) if $pl->ns;
		1689	ext::highscore::check ($pl->ob);
		1690
1108	$pl->ns->destroy if $pl->ns;	1691	$pl->ns->destroy if $pl->ns;
1109		1692
1110	my $path = playerdir $pl;	1693	my $path = playerdir $pl;
1111	my $temp = "$path~$cf::RUNTIME~deleting~";	1694	my $temp = "$path~$cf::RUNTIME~deleting~";
1112	aio_rename $path, $temp;	1695	aio_rename $path, $temp;
…		…
1147	or return [];	1730	or return [];
1148		1731
1149	my @logins;	1732	my @logins;
1150		1733
1151	for my $login (@$dirs) {	1734	for my $login (@$dirs) {
		1735	my $path = path $login;
		1736
		1737	# a .pst is a dead give-away for a valid player
		1738	# if no pst file found, open and chekc for blocked users
		1739	if (aio_stat "$path.pst") {
1152	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1740	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1153	aio_read $fh, 0, 512, my $buf, 0 or next;	1741	aio_read $fh, 0, 512, my $buf, 0 or next;
1154	$buf !~ /^password -------------$/m or next; # official not-valid tag	1742	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1743	}
1155		1744
1156	utf8::decode $login;	1745	utf8::decode $login;
1157	push @logins, $login;	1746	push @logins, $login;
1158	}	1747	}
1159		1748
1160	\@logins	1749	\@logins
1161	}	1750	}
1162		1751
1163	=item $player->maps	1752	=item $player->maps
		1753
		1754	=item cf::player::maps $login
1164		1755
1165	Returns an arrayref of map paths that are private for this	1756	Returns an arrayref of map paths that are private for this
1166	player. May block.	1757	player. May block.
1167		1758
1168	=cut	1759	=cut
…		…
1186	}	1777	}
1187		1778
1188	\@paths	1779	\@paths
1189	}	1780	}
1190		1781
		1782	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1783
		1784	Expand deliantra pod fragments into protocol xml.
		1785
1191	=item $player->ext_reply ($msgid, %msg)	1786	=item $player->ext_reply ($msgid, @msg)
1192		1787
1193	Sends an ext reply to the player.	1788	Sends an ext reply to the player.
1194		1789
1195	=cut	1790	=cut
1196		1791
1197	sub ext_reply($$%) {	1792	sub ext_reply($$@) {
1198	my ($self, $id, %msg) = @_;	1793	my ($self, $id, @msg) = @_;
1199		1794
1200	$msg{msgid} = $id;	1795	$self->ns->ext_reply ($id, @msg)
1201
1202	$self->send ("ext " . cf::to_json \%msg);
1203	}	1796	}
1204		1797
1205	=item $player->ext_event ($type, %msg)	1798	=item $player->ext_msg ($type, @msg)
1206		1799
1207	Sends an ext event to the client.	1800	Sends an ext event to the client.
1208		1801
1209	=cut	1802	=cut
1210		1803
1211	sub ext_event($$%) {	1804	sub ext_msg($$@) {
1212	my ($self, $type, %msg) = @_;	1805	my ($self, $type, @msg) = @_;
1213		1806
1214	$self->ns->ext_event ($type, %msg);	1807	$self->ns->ext_msg ($type, @msg);
1215	}	1808	}
1216		1809
1217	=head3 cf::region	1810	=head3 cf::region
1218		1811
1219	=over 4	1812	=over 4
…		…
1222		1815
1223	package cf::region;	1816	package cf::region;
1224		1817
1225	=item cf::region::find_by_path $path	1818	=item cf::region::find_by_path $path
1226		1819
1227	Tries to decuce the probable region for a map knowing only its path.	1820	Tries to decuce the likely region for a map knowing only its path.
1228		1821
1229	=cut	1822	=cut
1230		1823
1231	sub find_by_path($) {	1824	sub find_by_path($) {
1232	my ($path) = @_;	1825	my ($path) = @_;
1233		1826
		1827	$path =~ s/^~[^\/]*//; # skip ~login
		1828
1234	my ($match, $specificity);	1829	my ($match, $specificity);
1235		1830
1236	for my $region (list) {	1831	for my $region (list) {
1237	if ($region->match && $path =~ $region->match) {	1832	if ($region->{match} && $path =~ $region->{match}) {
1238	($match, $specificity) = ($region, $region->specificity)	1833	($match, $specificity) = ($region, $region->specificity)
1239	if $region->specificity > $specificity;	1834	if $region->specificity > $specificity;
1240	}	1835	}
1241	}	1836	}
1242		1837
…		…
1263	our $MAX_RESET = 3600;	1858	our $MAX_RESET = 3600;
1264	our $DEFAULT_RESET = 3000;	1859	our $DEFAULT_RESET = 3000;
1265		1860
1266	sub generate_random_map {	1861	sub generate_random_map {
1267	my ($self, $rmp) = @_;	1862	my ($self, $rmp) = @_;
		1863
		1864	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1865
1268	# mit "rum" bekleckern, nicht	1866	# mit "rum" bekleckern, nicht
1269	$self->_create_random_map (	1867	$self->_create_random_map (
1270	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1868	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1271	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1869	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1272	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1870	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1273	$rmp->{exit_on_final_map},	1871	$rmp->{exit_on_final_map},
1274	$rmp->{xsize}, $rmp->{ysize},	1872	$rmp->{xsize}, $rmp->{ysize},
1275	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1873	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1276	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1874	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
…		…
1291		1889
1292	sub register {	1890	sub register {
1293	my (undef, $regex, $prio) = @_;	1891	my (undef, $regex, $prio) = @_;
1294	my $pkg = caller;	1892	my $pkg = caller;
1295		1893
1296	no strict;
1297	push @{"$pkg\::ISA"}, __PACKAGE__;	1894	push @{"$pkg\::ISA"}, __PACKAGE__;
1298		1895
1299	$EXT_MAP{$pkg} = [$prio, qr<$regex>];	1896	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1300	}	1897	}
1301		1898
1302	# also paths starting with '/'	1899	# also paths starting with '/'
1303	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];	1900	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
1304		1901
1305	sub thawer_merge {	1902	sub thawer_merge {
1306	my ($self, $merge) = @_;	1903	my ($self, $merge) = @_;
1307		1904
1308	# we have to keep some variables in memory intact	1905	# we have to keep some variables in memory intact
1309	local $self->{path};	1906	local $self->{path};
1310	local $self->{load_path};	1907	local $self->{load_path};
1311	local $self->{deny_save};
1312	local $self->{deny_reset};
1313		1908
1314	$self->SUPER::thawer_merge ($merge);	1909	$self->SUPER::thawer_merge ($merge);
1315	}	1910	}
1316		1911
1317	sub normalise {	1912	sub normalise {
1318	my ($path, $base) = @_;	1913	my ($path, $base) = @_;
1319		1914
1320	$path = "$path"; # make sure its a string	1915	$path = "$path"; # make sure it's a string
1321		1916
1322	$path =~ s/\.map$//;	1917	$path =~ s/\.map$//;
1323		1918
1324	# map plan:	1919	# map plan:
1325	#	1920	#
…		…
1364	$self->init; # pass $1 etc.	1959	$self->init; # pass $1 etc.
1365	return $self;	1960	return $self;
1366	}	1961	}
1367	}	1962	}
1368		1963
1369	Carp::carp "unable to resolve path '$path' (base '$base').";	1964	Carp::cluck "unable to resolve path '$path' (base '$base')";
1370	()	1965	()
1371	}	1966	}
1372		1967
1373	sub init {	1968	sub init {
1374	my ($self) = @_;	1969	my ($self) = @_;
…		…
1396		1991
1397	# the temporary/swap location	1992	# the temporary/swap location
1398	sub save_path {	1993	sub save_path {
1399	my ($self) = @_;	1994	my ($self) = @_;
1400		1995
1401	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1996	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1402	"$TMPDIR/$path.map"	1997	"$TMPDIR/$path.map"
1403	}	1998	}
1404		1999
1405	# the unique path, undef == no special unique path	2000	# the unique path, undef == no special unique path
1406	sub uniq_path {	2001	sub uniq_path {
1407	my ($self) = @_;	2002	my ($self) = @_;
1408		2003
1409	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	2004	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1410	"$UNIQUEDIR/$path"	2005	"$UNIQUEDIR/$path"
1411	}	2006	}
1412		2007
1413	# and all this just because we cannot iterate over	2008	sub decay_objects {
1414	# all maps in C++...
1415	sub change_all_map_light {
1416	my ($change) = @_;	2009	my ($self) = @_;
1417		2010
1418	$_->change_map_light ($change)	2011	return if $self->{deny_reset};
1419	for grep $_->outdoor, values %cf::MAP;	2012
		2013	$self->do_decay_objects;
1420	}	2014	}
1421		2015
1422	sub unlink_save {	2016	sub unlink_save {
1423	my ($self) = @_;	2017	my ($self) = @_;
1424		2018
…		…
1429		2023
1430	sub load_header_from($) {	2024	sub load_header_from($) {
1431	my ($self, $path) = @_;	2025	my ($self, $path) = @_;
1432		2026
1433	utf8::encode $path;	2027	utf8::encode $path;
1434	#aio_open $path, O_RDONLY, 0	2028	my $f = new_from_file cf::object::thawer $path
1435	# or return;
1436
1437	$self->_load_header ($path)
1438	or return;	2029	or return;
		2030
		2031	$self->_load_header ($f)
		2032	or return;
		2033
		2034	local $MAP_LOADING{$self->{path}} = $self;
		2035	$f->resolve_delayed_derefs;
1439		2036
1440	$self->{load_path} = $path;	2037	$self->{load_path} = $path;
1441		2038
1442	1	2039	1
1443	}	2040	}
…		…
1482	$self->load_header_orig	2079	$self->load_header_orig
1483	or return;	2080	or return;
1484	$self->prepare_orig;	2081	$self->prepare_orig;
1485	}	2082	}
1486		2083
		2084	$self->{deny_reset} = 1
		2085	if $self->no_reset;
		2086
1487	$self->default_region (cf::region::find_by_path $self->{path})	2087	$self->default_region (cf::region::find_by_path $self->{path})
1488	unless $self->default_region;	2088	unless $self->default_region;
1489		2089
1490	1	2090	1
1491	}	2091	}
1492		2092
1493	sub find;	2093	sub find;
1494	sub find {	2094	sub find {
1495	my ($path, $origin) = @_;	2095	my ($path, $origin) = @_;
1496		2096
		2097	cf::cede_to_tick;
		2098
1497	$path = normalise $path, $origin && $origin->path;	2099	$path = normalise $path, $origin && $origin->path;
1498		2100
		2101	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1499	cf::lock_wait "map_find:$path";	2102	my $guard2 = cf::lock_acquire "map_find:$path";
1500		2103
1501	$cf::MAP{$path} || do {	2104	$cf::MAP{$path} || do {
1502	my $guard = cf::lock_acquire "map_find:$path";
1503	my $map = new_from_path cf::map $path	2105	my $map = new_from_path cf::map $path
1504	or return;	2106	or return;
1505		2107
1506	$map->{last_save} = $cf::RUNTIME;	2108	$map->{last_save} = $cf::RUNTIME;
1507		2109
1508	$map->load_header	2110	$map->load_header
1509	or return;	2111	or return;
1510		2112
1511	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2113	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1512	# doing this can freeze the server in a sync job, obviously	2114	# doing this can freeze the server in a sync job, obviously
1513	#$cf::WAIT_FOR_TICK->wait;	2115	#$cf::WAIT_FOR_TICK->wait;
		2116	undef $guard2;
		2117	undef $guard1;
1514	$map->reset;	2118	$map->reset;
1515	undef $guard;
1516	return find $path;	2119	return find $path;
1517	}	2120	}
1518		2121
1519	$cf::MAP{$path} = $map	2122	$cf::MAP{$path} = $map
1520	}	2123	}
1521	}	2124	}
1522		2125
1523	sub pre_load { }	2126	sub pre_load { }
1524	sub post_load { }	2127	#sub post_load { } # XS
1525		2128
1526	sub load {	2129	sub load {
1527	my ($self) = @_;	2130	my ($self) = @_;
1528		2131
1529	local $self->{deny_reset} = 1; # loading can take a long time	2132	local $self->{deny_reset} = 1; # loading can take a long time
1530		2133
1531	my $path = $self->{path};	2134	my $path = $self->{path};
1532		2135
1533	{	2136	{
1534	my $guard = cf::lock_acquire "map_load:$path";	2137	my $guard = cf::lock_acquire "map_data:$path";
1535		2138
		2139	return unless $self->valid;
1536	return if $self->in_memory != cf::MAP_SWAPPED;	2140	return unless $self->in_memory == cf::MAP_SWAPPED;
1537		2141
1538	$self->in_memory (cf::MAP_LOADING);	2142	$self->in_memory (cf::MAP_LOADING);
1539		2143
1540	$self->alloc;	2144	$self->alloc;
1541		2145
1542	$self->pre_load;	2146	$self->pre_load;
1543	Coro::cede;	2147	cf::cede_to_tick;
1544		2148
		2149	my $f = new_from_file cf::object::thawer $self->{load_path};
		2150	$f->skip_block;
1545	$self->_load_objects ($self->{load_path}, 1)	2151	$self->_load_objects ($f)
1546	or return;	2152	or return;
1547		2153
1548	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2154	$self->post_load_original
1549	if delete $self->{load_original};	2155	if delete $self->{load_original};
1550		2156
1551	if (my $uniq = $self->uniq_path) {	2157	if (my $uniq = $self->uniq_path) {
1552	utf8::encode $uniq;	2158	utf8::encode $uniq;
1553	if (aio_open $uniq, O_RDONLY, 0) {	2159	unless (aio_stat $uniq) {
		2160	if (my $f = new_from_file cf::object::thawer $uniq) {
1554	$self->clear_unique_items;	2161	$self->clear_unique_items;
1555	$self->_load_objects ($uniq, 0);	2162	$self->_load_objects ($f);
		2163	$f->resolve_delayed_derefs;
		2164	}
1556	}	2165	}
1557	}	2166	}
1558		2167
1559	Coro::cede;	2168	$f->resolve_delayed_derefs;
		2169
		2170	cf::cede_to_tick;
1560	# now do the right thing for maps	2171	# now do the right thing for maps
1561	$self->link_multipart_objects;	2172	$self->link_multipart_objects;
1562	$self->difficulty ($self->estimate_difficulty)	2173	$self->difficulty ($self->estimate_difficulty)
1563	unless $self->difficulty;	2174	unless $self->difficulty;
1564	Coro::cede;	2175	cf::cede_to_tick;
1565		2176
1566	unless ($self->{deny_activate}) {	2177	unless ($self->{deny_activate}) {
1567	$self->decay_objects;	2178	$self->decay_objects;
1568	$self->fix_auto_apply;	2179	$self->fix_auto_apply;
1569	$self->update_buttons;	2180	$self->update_buttons;
1570	Coro::cede;	2181	cf::cede_to_tick;
1571	$self->set_darkness_map;
1572	Coro::cede;
1573	$self->activate;	2182	$self->activate;
1574	}	2183	}
1575		2184
		2185	$self->{last_save} = $cf::RUNTIME;
		2186	$self->last_access ($cf::RUNTIME);
		2187
1576	$self->in_memory (cf::MAP_IN_MEMORY);	2188	$self->in_memory (cf::MAP_ACTIVE);
1577	}	2189	}
1578		2190
1579	$self->post_load;	2191	$self->post_load;
1580	}	2192	}
1581		2193
		2194	# customize the map for a given player, i.e.
		2195	# return the _real_ map. used by e.g. per-player
		2196	# maps to change the path to ~playername/mappath
1582	sub customise_for {	2197	sub customise_for {
1583	my ($self, $ob) = @_;	2198	my ($self, $ob) = @_;
1584		2199
1585	return find "~" . $ob->name . "/" . $self->{path}	2200	return find "~" . $ob->name . "/" . $self->{path}
1586	if $self->per_player;	2201	if $self->per_player;
1587		2202
		2203	# return find "?party/" . $ob->name . "/" . $self->{path}
		2204	# if $self->per_party;
		2205
1588	$self	2206	$self
1589	}	2207	}
1590		2208
1591	# find and load all maps in the 3x3 area around a map	2209	# find and load all maps in the 3x3 area around a map
1592	sub load_diag {	2210	sub load_neighbours {
1593	my ($map) = @_;	2211	my ($map) = @_;
1594		2212
1595	my @diag; # diagonal neighbours	2213	my @neigh; # diagonal neighbours
1596		2214
1597	for (0 .. 3) {	2215	for (0 .. 3) {
1598	my $neigh = $map->tile_path ($_)	2216	my $neigh = $map->tile_path ($_)
1599	or next;	2217	or next;
1600	$neigh = find $neigh, $map	2218	$neigh = find $neigh, $map
1601	or next;	2219	or next;
1602	$neigh->load;	2220	$neigh->load;
1603		2221
		2222	# now find the diagonal neighbours
		2223	push @neigh,
1604	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2224	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1605	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2225	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1606	}	2226	}
1607		2227
1608	for (@diag) {	2228	for (grep defined $_->[0], @neigh) {
		2229	my ($path, $origin) = @$_;
1609	my $neigh = find @$_	2230	my $neigh = find $path, $origin
1610	or next;	2231	or next;
1611	$neigh->load;	2232	$neigh->load;
1612	}	2233	}
1613	}	2234	}
1614		2235
1615	sub find_sync {	2236	sub find_sync {
1616	my ($path, $origin) = @_;	2237	my ($path, $origin) = @_;
1617		2238
1618	cf::sync_job { find $path, $origin }	2239	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2240	if $Coro::current == $Coro::main;
		2241
		2242	find $path, $origin
1619	}	2243	}
1620		2244
1621	sub do_load_sync {	2245	sub do_load_sync {
1622	my ($map) = @_;	2246	my ($map) = @_;
1623		2247
1624	cf::sync_job { $map->load };	2248	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2249	if $Coro::current == $Coro::main;
		2250
		2251	$map->load;
1625	}	2252	}
1626		2253
1627	our %MAP_PREFETCH;	2254	our %MAP_PREFETCH;
1628	our $MAP_PREFETCHER = undef;	2255	our $MAP_PREFETCHER = undef;
1629		2256
1630	sub find_async {	2257	sub find_async {
1631	my ($path, $origin) = @_;	2258	my ($path, $origin, $load) = @_;
1632		2259
1633	$path = normalise $path, $origin && $origin->{path};	2260	$path = normalise $path, $origin && $origin->{path};
1634		2261
1635	if (my $map = $cf::MAP{$path}) {	2262	if (my $map = $cf::MAP{$path}) {
1636	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2263	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1637	}	2264	}
1638		2265
1639	undef $MAP_PREFETCH{$path};	2266	$MAP_PREFETCH{$path} |= $load;
		2267
1640	$MAP_PREFETCHER ||= cf::async {	2268	$MAP_PREFETCHER ||= cf::async {
		2269	$Coro::current->{desc} = "map prefetcher";
		2270
1641	while (%MAP_PREFETCH) {	2271	while (%MAP_PREFETCH) {
1642	for my $path (keys %MAP_PREFETCH) {	2272	while (my ($k, $v) = each %MAP_PREFETCH) {
1643	my $map = find $path	2273	if (my $map = find $k) {
1644	or next;
1645	$map->load;	2274	$map->load if $v;
		2275	}
1646		2276
1647	delete $MAP_PREFETCH{$path};	2277	delete $MAP_PREFETCH{$k};
1648	}	2278	}
1649	}	2279	}
1650	undef $MAP_PREFETCHER;	2280	undef $MAP_PREFETCHER;
1651	};	2281	};
1652	$MAP_PREFETCHER->prio (6);	2282	$MAP_PREFETCHER->prio (6);
1653		2283
1654	()	2284	()
1655	}	2285	}
1656		2286
		2287	# common code, used by both ->save and ->swapout
1657	sub save {	2288	sub _save {
1658	my ($self) = @_;	2289	my ($self) = @_;
1659
1660	my $lock = cf::lock_acquire "map_data:" . $self->path;
1661		2290
1662	$self->{last_save} = $cf::RUNTIME;	2291	$self->{last_save} = $cf::RUNTIME;
1663		2292
1664	return unless $self->dirty;	2293	return unless $self->dirty;
1665		2294
…		…
1671	return if $self->{deny_save};	2300	return if $self->{deny_save};
1672		2301
1673	local $self->{last_access} = $self->last_access;#d#	2302	local $self->{last_access} = $self->last_access;#d#
1674		2303
1675	cf::async {	2304	cf::async {
		2305	$Coro::current->{desc} = "map player save";
1676	$_->contr->save for $self->players;	2306	$_->contr->save for $self->players;
1677	};	2307	};
		2308
		2309	cf::get_slot 0.02;
1678		2310
1679	if ($uniq) {	2311	if ($uniq) {
1680	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2312	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1681	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2313	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1682	} else {	2314	} else {
1683	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2315	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1684	}	2316	}
1685	}	2317	}
1686		2318
		2319	sub save {
		2320	my ($self) = @_;
		2321
		2322	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2323
		2324	$self->_save;
		2325	}
		2326
1687	sub swap_out {	2327	sub swap_out {
1688	my ($self) = @_;	2328	my ($self) = @_;
1689		2329
1690	# save first because save cedes
1691	$self->save;
1692
1693	my $lock = cf::lock_acquire "map_data:" . $self->path;	2330	my $lock = cf::lock_acquire "map_data:$self->{path}";
1694		2331
		2332	return if $self->in_memory != cf::MAP_ACTIVE;
		2333	return if $self->{deny_save};
1695	return if $self->players;	2334	return if $self->players;
1696	return if $self->in_memory != cf::MAP_IN_MEMORY;
1697	return if $self->{deny_save};
1698		2335
		2336	# first deactivate the map and "unlink" it from the core
		2337	$self->deactivate;
		2338	$_->clear_links_to ($self) for values %cf::MAP;
		2339	$self->in_memory (cf::MAP_SWAPPED);
		2340
		2341	# then atomically save
		2342	$self->_save;
		2343
		2344	# then free the map
1699	$self->clear;	2345	$self->clear;
1700	$self->in_memory (cf::MAP_SWAPPED);
1701	}	2346	}
1702		2347
1703	sub reset_at {	2348	sub reset_at {
1704	my ($self) = @_;	2349	my ($self) = @_;
1705		2350
1706	# TODO: safety, remove and allow resettable per-player maps	2351	# TODO: safety, remove and allow resettable per-player maps
1707	return 1e99 if $self->isa ("ext::map_per_player");#d#
1708	return 1e99 if $self->{deny_reset};	2352	return 1e99 if $self->{deny_reset};
1709		2353
1710	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2354	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1711	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2355	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1712		2356
…		…
1723	my ($self) = @_;	2367	my ($self) = @_;
1724		2368
1725	my $lock = cf::lock_acquire "map_data:$self->{path}";	2369	my $lock = cf::lock_acquire "map_data:$self->{path}";
1726		2370
1727	return if $self->players;	2371	return if $self->players;
1728	return if $self->isa ("ext::map_per_player");#d#
1729		2372
1730	warn "resetting map ", $self->path;#d#	2373	cf::trace "resetting map ", $self->path, "\n";
1731		2374
1732	$self->in_memory (cf::MAP_SWAPPED);	2375	$self->in_memory (cf::MAP_SWAPPED);
1733		2376
1734	# need to save uniques path	2377	# need to save uniques path
1735	unless ($self->{deny_save}) {	2378	unless ($self->{deny_save}) {
…		…
1739	if $uniq;	2382	if $uniq;
1740	}	2383	}
1741		2384
1742	delete $cf::MAP{$self->path};	2385	delete $cf::MAP{$self->path};
1743		2386
		2387	$self->deactivate;
		2388	$_->clear_links_to ($self) for values %cf::MAP;
1744	$self->clear;	2389	$self->clear;
1745
1746	$_->clear_links_to ($self) for values %cf::MAP;
1747		2390
1748	$self->unlink_save;	2391	$self->unlink_save;
1749	$self->destroy;	2392	$self->destroy;
1750	}	2393	}
1751		2394
1752	my $nuke_counter = "aaaa";	2395	my $nuke_counter = "aaaa";
1753		2396
1754	sub nuke {	2397	sub nuke {
1755	my ($self) = @_;	2398	my ($self) = @_;
1756		2399
		2400	{
		2401	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2402
1757	delete $cf::MAP{$self->path};	2403	delete $cf::MAP{$self->path};
1758		2404
1759	$self->unlink_save;	2405	$self->unlink_save;
1760		2406
1761	bless $self, "cf::map";	2407	bless $self, "cf::map::wrap";
1762	delete $self->{deny_reset};	2408	delete $self->{deny_reset};
1763	$self->{deny_save} = 1;	2409	$self->{deny_save} = 1;
1764	$self->reset_timeout (1);	2410	$self->reset_timeout (1);
1765	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2411	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1766		2412
1767	$cf::MAP{$self->path} = $self;	2413	$cf::MAP{$self->path} = $self;
		2414	}
1768		2415
1769	$self->reset; # polite request, might not happen	2416	$self->reset; # polite request, might not happen
		2417	}
		2418
		2419	=item $maps = cf::map::tmp_maps
		2420
		2421	Returns an arrayref with all map paths of currently instantiated and saved
		2422	maps. May block.
		2423
		2424	=cut
		2425
		2426	sub tmp_maps() {
		2427	[
		2428	map {
		2429	utf8::decode $_;
		2430	/\.map$/
		2431	? normalise $_
		2432	: ()
		2433	} @{ aio_readdir $TMPDIR or [] }
		2434	]
		2435	}
		2436
		2437	=item $maps = cf::map::random_maps
		2438
		2439	Returns an arrayref with all map paths of currently instantiated and saved
		2440	random maps. May block.
		2441
		2442	=cut
		2443
		2444	sub random_maps() {
		2445	[
		2446	map {
		2447	utf8::decode $_;
		2448	/\.map$/
		2449	? normalise "?random/$_"
		2450	: ()
		2451	} @{ aio_readdir $RANDOMDIR or [] }
		2452	]
1770	}	2453	}
1771		2454
1772	=item cf::map::unique_maps	2455	=item cf::map::unique_maps
1773		2456
1774	Returns an arrayref of paths of all shared maps that have	2457	Returns an arrayref of paths of all shared maps that have
1775	instantiated unique items. May block.	2458	instantiated unique items. May block.
1776		2459
1777	=cut	2460	=cut
1778		2461
1779	sub unique_maps() {	2462	sub unique_maps() {
1780	my $files = aio_readdir $UNIQUEDIR	2463	[
1781	or return;	2464	map {
1782
1783	my @paths;
1784
1785	for (@$files) {
1786	utf8::decode $_;	2465	utf8::decode $_;
1787	next if /\.pst$/;	2466	s/\.map$//; # TODO future compatibility hack
1788	next unless /^$PATH_SEP/o;	2467	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1789		2468	? ()
1790	push @paths, cf::map::normalise $_;	2469	: normalise $_
		2470	} @{ aio_readdir $UNIQUEDIR or [] }
1791	}	2471	]
1792
1793	\@paths
1794	}	2472	}
1795		2473
1796	package cf;	2474	=item cf::map::static_maps
		2475
		2476	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2477	file in the shared directory excluding F</styles> and F</editor>). May
		2478	block.
		2479
		2480	=cut
		2481
		2482	sub static_maps() {
		2483	my @dirs = "";
		2484	my @maps;
		2485
		2486	while (@dirs) {
		2487	my $dir = shift @dirs;
		2488
		2489	next if $dir eq "/styles" || $dir eq "/editor";
		2490
		2491	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2492	or return;
		2493
		2494	for (@$files) {
		2495	s/\.map$// or next;
		2496	utf8::decode $_;
		2497	push @maps, "$dir/$_";
		2498	}
		2499
		2500	push @dirs, map "$dir/$_", @$dirs;
		2501	}
		2502
		2503	\@maps
		2504	}
1797		2505
1798	=back	2506	=back
1799		2507
1800	=head3 cf::object	2508	=head3 cf::object
1801		2509
…		…
1805		2513
1806	=over 4	2514	=over 4
1807		2515
1808	=item $ob->inv_recursive	2516	=item $ob->inv_recursive
1809		2517
1810	Returns the inventory of the object _and_ their inventories, recursively.	2518	Returns the inventory of the object I<and> their inventories, recursively,
		2519	but I<not> the object itself.
1811		2520
1812	=cut	2521	=cut
1813		2522
1814	sub inv_recursive_;	2523	sub inv_recursive_;
1815	sub inv_recursive_ {	2524	sub inv_recursive_ {
…		…
1818		2527
1819	sub inv_recursive {	2528	sub inv_recursive {
1820	inv_recursive_ inv $_[0]	2529	inv_recursive_ inv $_[0]
1821	}	2530	}
1822		2531
		2532	=item $ref = $ob->ref
		2533
		2534	Creates and returns a persistent reference to an object that can be stored as a string.
		2535
		2536	=item $ob = cf::object::deref ($refstring)
		2537
		2538	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2539	even if the object actually exists. May block.
		2540
		2541	=cut
		2542
		2543	sub deref {
		2544	my ($ref) = @_;
		2545
		2546	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2547	my ($uuid, $name) = ($1, $2);
		2548	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2549	or return;
		2550	$pl->ob->uuid eq $uuid
		2551	or return;
		2552
		2553	$pl->ob
		2554	} else {
		2555	warn "$ref: cannot resolve object reference\n";
		2556	undef
		2557	}
		2558	}
		2559
1823	package cf;	2560	package cf;
1824		2561
1825	=back	2562	=back
1826		2563
1827	=head3 cf::object::player	2564	=head3 cf::object::player
…		…
1833	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2570	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1834	can be C<undef>. Does the right thing when the player is currently in a	2571	can be C<undef>. Does the right thing when the player is currently in a
1835	dialogue with the given NPC character.	2572	dialogue with the given NPC character.
1836		2573
1837	=cut	2574	=cut
		2575
		2576	our $SAY_CHANNEL = {
		2577	id => "say",
		2578	title => "Map",
		2579	reply => "say ",
		2580	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2581	};
		2582
		2583	our $CHAT_CHANNEL = {
		2584	id => "chat",
		2585	title => "Chat",
		2586	reply => "chat ",
		2587	tooltip => "Player chat and shouts, global to the server.",
		2588	};
1838		2589
1839	# rough implementation of a future "reply" method that works	2590	# rough implementation of a future "reply" method that works
1840	# with dialog boxes.	2591	# with dialog boxes.
1841	#TODO: the first argument must go, split into a $npc->reply_to ( method	2592	#TODO: the first argument must go, split into a $npc->reply_to ( method
1842	sub cf::object::player::reply($$$;$) {	2593	sub cf::object::player::reply($$$;$) {
…		…
1844		2595
1845	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2596	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1846		2597
1847	if ($self->{record_replies}) {	2598	if ($self->{record_replies}) {
1848	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2599	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2600
1849	} else {	2601	} else {
		2602	my $pl = $self->contr;
		2603
		2604	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2605	my $dialog = $pl->{npc_dialog};
		2606	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2607
		2608	} else {
1850	$msg = $npc->name . " says: $msg" if $npc;	2609	$msg = $npc->name . " says: $msg" if $npc;
1851	$self->message ($msg, $flags);	2610	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2611	}
1852	}	2612	}
		2613	}
		2614
		2615	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2616
		2617	=cut
		2618
		2619	sub cf::object::send_msg {
		2620	my $pl = shift->contr
		2621	or return;
		2622	$pl->send_msg (@_);
1853	}	2623	}
1854		2624
1855	=item $player_object->may ("access")	2625	=item $player_object->may ("access")
1856		2626
1857	Returns wether the given player is authorized to access resource "access"	2627	Returns wether the given player is authorized to access resource "access"
…		…
1870		2640
1871	=item $player_object->enter_link	2641	=item $player_object->enter_link
1872		2642
1873	Freezes the player and moves him/her to a special map (C<{link}>).	2643	Freezes the player and moves him/her to a special map (C<{link}>).
1874		2644
1875	The player should be reasonably safe there for short amounts of time. You	2645	The player should be reasonably safe there for short amounts of time (e.g.
1876	I<MUST> call C<leave_link> as soon as possible, though.	2646	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2647	though, as the player cannot control the character while it is on the link
		2648	map.
1877		2649
1878	Will never block.	2650	Will never block.
1879		2651
1880	=item $player_object->leave_link ($map, $x, $y)	2652	=item $player_object->leave_link ($map, $x, $y)
1881		2653
…		…
1901	sub cf::object::player::enter_link {	2673	sub cf::object::player::enter_link {
1902	my ($self) = @_;	2674	my ($self) = @_;
1903		2675
1904	$self->deactivate_recursive;	2676	$self->deactivate_recursive;
1905		2677
		2678	++$self->{_link_recursion};
		2679
1906	return if UNIVERSAL::isa $self->map, "ext::map_link";	2680	return if UNIVERSAL::isa $self->map, "ext::map_link";
1907		2681
1908	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2682	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1909	if $self->map;	2683	if $self->map && $self->map->{path} ne "{link}";
1910		2684
1911	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2685	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1912	}	2686	}
1913		2687
1914	sub cf::object::player::leave_link {	2688	sub cf::object::player::leave_link {
1915	my ($self, $map, $x, $y) = @_;	2689	my ($self, $map, $x, $y) = @_;
		2690
		2691	return unless $self->contr->active;
1916		2692
1917	my $link_pos = delete $self->{_link_pos};	2693	my $link_pos = delete $self->{_link_pos};
1918		2694
1919	unless ($map) {	2695	unless ($map) {
1920	# restore original map position	2696	# restore original map position
…		…
1931	($x, $y) = (-1, -1)	2707	($x, $y) = (-1, -1)
1932	unless (defined $x) && (defined $y);	2708	unless (defined $x) && (defined $y);
1933		2709
1934	# use -1 or undef as default coordinates, not 0, 0	2710	# use -1 or undef as default coordinates, not 0, 0
1935	($x, $y) = ($map->enter_x, $map->enter_y)	2711	($x, $y) = ($map->enter_x, $map->enter_y)
1936	if $x <=0 && $y <= 0;	2712	if $x <= 0 && $y <= 0;
1937		2713
1938	$map->load;	2714	$map->load;
1939	$map->load_diag;	2715	$map->load_neighbours;
1940		2716
1941	return unless $self->contr->active;	2717	return unless $self->contr->active;
1942	$self->activate_recursive;
1943		2718
1944	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2719	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1945	$self->enter_map ($map, $x, $y);	2720	if ($self->enter_map ($map, $x, $y)) {
1946	}	2721	# entering was successful
1947		2722	delete $self->{_link_recursion};
1948	cf::player->attach (	2723	# only activate afterwards, to support waiting in hooks
1949	on_logout => sub {	2724	$self->activate_recursive;
1950	my ($pl) = @_;
1951
1952	# abort map switching before logout
1953	if ($pl->ob->{_link_pos}) {
1954	cf::sync_job {
1955	$pl->ob->leave_link
1956	};
1957	}
1958	},	2725	}
1959	on_login => sub {
1960	my ($pl) = @_;
1961		2726
1962	# try to abort aborted map switching on player login :)	2727	}
1963	# should happen only on crashes
1964	if ($pl->ob->{_link_pos}) {
1965	$pl->ob->enter_link;
1966	(async {
1967	$pl->ob->reply (undef,
1968	"There was an internal problem at your last logout, "
1969	. "the server will try to bring you to your intended destination in a second.",
1970	cf::NDI_RED);
1971	# we need this sleep as the login has a concurrent enter_exit running
1972	# and this sleep increases chances of the player not ending up in scorn
1973	Coro::Timer::sleep 1;
1974	$pl->ob->leave_link;
1975	})->prio (2);
1976	}
1977	},
1978	);
1979		2728
1980	=item $player_object->goto ($path, $x, $y)	2729	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1981		2730
		2731	Moves the player to the given map-path and coordinates by first freezing
		2732	her, loading and preparing them map, calling the provided $check callback
		2733	that has to return the map if sucecssful, and then unfreezes the player on
		2734	the new (success) or old (failed) map position. In either case, $done will
		2735	be called at the end of this process.
		2736
		2737	Note that $check will be called with a potentially non-loaded map, so if
		2738	it needs a loaded map it has to call C<< ->load >>.
		2739
1982	=cut	2740	=cut
		2741
		2742	our $GOTOGEN;
1983		2743
1984	sub cf::object::player::goto {	2744	sub cf::object::player::goto {
1985	my ($self, $path, $x, $y) = @_;	2745	my ($self, $path, $x, $y, $check, $done) = @_;
		2746
		2747	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2748	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2749	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2750	($path, $x, $y) = @$EMERGENCY_POSITION;
		2751	}
		2752
		2753	# do generation counting so two concurrent goto's will be executed in-order
		2754	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1986		2755
1987	$self->enter_link;	2756	$self->enter_link;
1988		2757
1989	(async {	2758	(async {
		2759	$Coro::current->{desc} = "player::goto $path $x $y";
		2760
		2761	# *tag paths override both path and x|y
		2762	if ($path =~ /^\*(.*)$/) {
		2763	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2764	my $ob = $obs[rand @obs];
		2765
		2766	# see if we actually can go there
		2767	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2768	$ob = $obs[rand @obs];
		2769	} else {
		2770	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2771	}
		2772	# else put us there anyways for now #d#
		2773
		2774	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2775	} else {
		2776	($path, $x, $y) = (undef, undef, undef);
		2777	}
		2778	}
		2779
1990	my $map = eval {	2780	my $map = eval {
1991	my $map = cf::map::find $path;	2781	my $map = defined $path ? cf::map::find $path : undef;
		2782
		2783	if ($map) {
1992	$map = $map->customise_for ($self) if $map;	2784	$map = $map->customise_for ($self);
		2785	$map = $check->($map, $x, $y, $self) if $check && $map;
		2786	} else {
		2787	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2788	}
		2789
1993	$map	2790	$map
		2791	};
		2792
		2793	if ($@) {
		2794	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2795	LOG llevError | logBacktrace, Carp::longmess $@;
1994	} or	2796	}
1995	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1996		2797
		2798	if ($gen == $self->{_goto_generation}) {
		2799	delete $self->{_goto_generation};
1997	$self->leave_link ($map, $x, $y);	2800	$self->leave_link ($map, $x, $y);
		2801	}
		2802
		2803	$done->($self) if $done;
1998	})->prio (1);	2804	})->prio (1);
1999	}	2805	}
2000		2806
2001	=item $player_object->enter_exit ($exit_object)	2807	=item $player_object->enter_exit ($exit_object)
2002		2808
…		…
2022	}	2828	}
2023		2829
2024	sub prepare_random_map {	2830	sub prepare_random_map {
2025	my ($exit) = @_;	2831	my ($exit) = @_;
2026		2832
2027	my $guard = cf::lock_acquire "exit_prepare:$exit";
2028
2029	# all this does is basically replace the /! path by	2833	# all this does is basically replace the /! path by
2030	# a new random map path (?random/...) with a seed	2834	# a new random map path (?random/...) with a seed
2031	# that depends on the exit object	2835	# that depends on the exit object
2032		2836
2033	my $rmp = parse_random_map_params $exit->msg;	2837	my $rmp = parse_random_map_params $exit->msg;
…		…
2035	if ($exit->map) {	2839	if ($exit->map) {
2036	$rmp->{region} = $exit->region->name;	2840	$rmp->{region} = $exit->region->name;
2037	$rmp->{origin_map} = $exit->map->path;	2841	$rmp->{origin_map} = $exit->map->path;
2038	$rmp->{origin_x} = $exit->x;	2842	$rmp->{origin_x} = $exit->x;
2039	$rmp->{origin_y} = $exit->y;	2843	$rmp->{origin_y} = $exit->y;
		2844
		2845	$exit->map->touch;
2040	}	2846	}
2041		2847
2042	$rmp->{random_seed} ||= $exit->random_seed;	2848	$rmp->{random_seed} ||= $exit->random_seed;
2043		2849
2044	my $data = cf::to_json $rmp;	2850	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2045	my $md5 = Digest::MD5::md5_hex $data;	2851	my $md5 = Digest::MD5::md5_hex $data;
2046	my $meta = "$RANDOMDIR/$md5.meta";	2852	my $meta = "$RANDOMDIR/$md5.meta";
2047		2853
2048	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2854	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2049	aio_write $fh, 0, (length $data), $data, 0;	2855	aio_write $fh, 0, (length $data), $data, 0;
2050	undef $fh;	2856	undef $fh;
2051	aio_rename "$meta~", $meta;	2857	aio_rename "$meta~", $meta;
2052		2858
		2859	my $slaying = "?random/$md5";
		2860
		2861	if ($exit->valid) {
2053	$exit->slaying ("?random/$md5");	2862	$exit->slaying ("?random/$md5");
2054	$exit->msg (undef);	2863	$exit->msg (undef);
		2864	}
2055	}	2865	}
2056	}	2866	}
2057		2867
2058	sub cf::object::player::enter_exit {	2868	sub cf::object::player::enter_exit {
2059	my ($self, $exit) = @_;	2869	my ($self, $exit) = @_;
2060		2870
2061	return unless $self->type == cf::PLAYER;	2871	return unless $self->type == cf::PLAYER;
2062		2872
2063	if ($exit->slaying eq "/!") {
2064	#TODO: this should de-fi-ni-te-ly not be a sync-job
2065	# the problem is that $exit might not survive long enough
2066	# so it needs to be done right now, right here
2067	cf::sync_job { prepare_random_map $exit };
2068	}
2069
2070	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2071	my $hp = $exit->stats->hp;
2072	my $sp = $exit->stats->sp;
2073
2074	$self->enter_link;	2873	$self->enter_link;
2075		2874
2076	(async {	2875	(async {
2077	$self->deactivate_recursive; # just to be sure	2876	$Coro::current->{desc} = "enter_exit";
		2877
2078	unless (eval {	2878	unless (eval {
		2879	$self->deactivate_recursive; # just to be sure
		2880
		2881	# random map handling
		2882	{
		2883	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2884
		2885	prepare_random_map $exit
		2886	if $exit->slaying eq "/!";
		2887	}
		2888
		2889	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2890	my $x = $exit->stats->hp;
		2891	my $y = $exit->stats->sp;
		2892
2079	$self->goto ($slaying, $hp, $sp);	2893	$self->goto ($map, $x, $y);
2080		2894
		2895	# if exit is damned, update players death & WoR home-position
		2896	$self->contr->savebed ($map, $x, $y)
		2897	if $exit->flag (cf::FLAG_DAMNED);
		2898
2081	1;	2899	1
2082	}) {	2900	}) {
2083	$self->message ("Something went wrong deep within the crossfire server. "	2901	$self->message ("Something went wrong deep within the deliantra server. "
2084	. "I'll try to bring you back to the map you were before. "	2902	. "I'll try to bring you back to the map you were before. "
2085	. "Please report this to the dungeon master!",	2903	. "Please report this to the dungeon master!",
2086	cf::NDI_UNIQUE | cf::NDI_RED);	2904	cf::NDI_UNIQUE | cf::NDI_RED);
2087		2905
2088	warn "ERROR in enter_exit: $@";	2906	error "ERROR in enter_exit: $@";
2089	$self->leave_link;	2907	$self->leave_link;
2090	}	2908	}
2091	})->prio (1);	2909	})->prio (1);
2092	}	2910	}
2093		2911
…		…
2107		2925
2108	utf8::encode $text;	2926	utf8::encode $text;
2109	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2927	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2110	}	2928	}
2111		2929
		2930	=item $client->send_big_packet ($pkt)
		2931
		2932	Like C<send_packet>, but tries to compress large packets, and fragments
		2933	them as required.
		2934
		2935	=cut
		2936
		2937	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2938
		2939	sub cf::client::send_big_packet {
		2940	my ($self, $pkt) = @_;
		2941
		2942	# try lzf for large packets
		2943	$pkt = "lzf " . Compress::LZF::compress $pkt
		2944	if 1024 <= length $pkt and $self->{can_lzf};
		2945
		2946	# split very large packets
		2947	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2948	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2949	$pkt = "frag";
		2950	}
		2951
		2952	$self->send_packet ($pkt);
		2953	}
		2954
		2955	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2956
		2957	Send a drawinfo or msg packet to the client, formatting the msg for the
		2958	client if neccessary. C<$type> should be a string identifying the type of
		2959	the message, with C<log> being the default. If C<$color> is negative, suppress
		2960	the message unless the client supports the msg packet.
		2961
		2962	=cut
		2963
		2964	# non-persistent channels (usually the info channel)
		2965	our %CHANNEL = (
		2966	"c/motd" => {
		2967	id => "infobox",
		2968	title => "MOTD",
		2969	reply => undef,
		2970	tooltip => "The message of the day",
		2971	},
		2972	"c/identify" => {
		2973	id => "infobox",
		2974	title => "Identify",
		2975	reply => undef,
		2976	tooltip => "Items recently identified",
		2977	},
		2978	"c/examine" => {
		2979	id => "infobox",
		2980	title => "Examine",
		2981	reply => undef,
		2982	tooltip => "Signs and other items you examined",
		2983	},
		2984	"c/shopinfo" => {
		2985	id => "infobox",
		2986	title => "Shop Info",
		2987	reply => undef,
		2988	tooltip => "What your bargaining skill tells you about the shop",
		2989	},
		2990	"c/book" => {
		2991	id => "infobox",
		2992	title => "Book",
		2993	reply => undef,
		2994	tooltip => "The contents of a note or book",
		2995	},
		2996	"c/lookat" => {
		2997	id => "infobox",
		2998	title => "Look",
		2999	reply => undef,
		3000	tooltip => "What you saw there",
		3001	},
		3002	"c/who" => {
		3003	id => "infobox",
		3004	title => "Players",
		3005	reply => undef,
		3006	tooltip => "Shows players who are currently online",
		3007	},
		3008	"c/body" => {
		3009	id => "infobox",
		3010	title => "Body Parts",
		3011	reply => undef,
		3012	tooltip => "Shows which body parts you posess and are available",
		3013	},
		3014	"c/statistics" => {
		3015	id => "infobox",
		3016	title => "Statistics",
		3017	reply => undef,
		3018	tooltip => "Shows your primary statistics",
		3019	},
		3020	"c/skills" => {
		3021	id => "infobox",
		3022	title => "Skills",
		3023	reply => undef,
		3024	tooltip => "Shows your experience per skill and item power",
		3025	},
		3026	"c/shopitems" => {
		3027	id => "infobox",
		3028	title => "Shop Items",
		3029	reply => undef,
		3030	tooltip => "Shows the items currently for sale in this shop",
		3031	},
		3032	"c/resistances" => {
		3033	id => "infobox",
		3034	title => "Resistances",
		3035	reply => undef,
		3036	tooltip => "Shows your resistances",
		3037	},
		3038	"c/pets" => {
		3039	id => "infobox",
		3040	title => "Pets",
		3041	reply => undef,
		3042	tooltip => "Shows information abotu your pets/a specific pet",
		3043	},
		3044	"c/perceiveself" => {
		3045	id => "infobox",
		3046	title => "Perceive Self",
		3047	reply => undef,
		3048	tooltip => "You gained detailed knowledge about yourself",
		3049	},
		3050	"c/uptime" => {
		3051	id => "infobox",
		3052	title => "Uptime",
		3053	reply => undef,
		3054	tooltip => "How long the server has been running since last restart",
		3055	},
		3056	"c/mapinfo" => {
		3057	id => "infobox",
		3058	title => "Map Info",
		3059	reply => undef,
		3060	tooltip => "Information related to the maps",
		3061	},
		3062	"c/party" => {
		3063	id => "party",
		3064	title => "Party",
		3065	reply => "gsay ",
		3066	tooltip => "Messages and chat related to your party",
		3067	},
		3068	"c/death" => {
		3069	id => "death",
		3070	title => "Death",
		3071	reply => undef,
		3072	tooltip => "Reason for and more info about your most recent death",
		3073	},
		3074	"c/say" => $SAY_CHANNEL,
		3075	"c/chat" => $CHAT_CHANNEL,
		3076	);
		3077
		3078	sub cf::client::send_msg {
		3079	my ($self, $channel, $msg, $color, @extra) = @_;
		3080
		3081	$msg = $self->pl->expand_cfpod ($msg)
		3082	unless $color & cf::NDI_VERBATIM;
		3083
		3084	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3085
		3086	# check predefined channels, for the benefit of C
		3087	if ($CHANNEL{$channel}) {
		3088	$channel = $CHANNEL{$channel};
		3089
		3090	$self->ext_msg (channel_info => $channel);
		3091	$channel = $channel->{id};
		3092
		3093	} elsif (ref $channel) {
		3094	# send meta info to client, if not yet sent
		3095	unless (exists $self->{channel}{$channel->{id}}) {
		3096	$self->{channel}{$channel->{id}} = $channel;
		3097	$self->ext_msg (channel_info => $channel);
		3098	}
		3099
		3100	$channel = $channel->{id};
		3101	}
		3102
		3103	return unless @extra || length $msg;
		3104
		3105	# default colour, mask it out
		3106	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3107	if $color & cf::NDI_DEF;
		3108
		3109	my $pkt = "msg "
		3110	. $self->{json_coder}->encode (
		3111	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3112	);
		3113
		3114	$self->send_big_packet ($pkt);
		3115	}
		3116
2112	=item $client->ext_event ($type, %msg)	3117	=item $client->ext_msg ($type, @msg)
2113		3118
2114	Sends an exti event to the client.	3119	Sends an ext event to the client.
2115		3120
2116	=cut	3121	=cut
2117		3122
2118	sub cf::client::ext_event($$%) {	3123	sub cf::client::ext_msg($$@) {
2119	my ($self, $type, %msg) = @_;	3124	my ($self, $type, @msg) = @_;
2120		3125
		3126	if ($self->extcmd == 2) {
		3127	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3128	} elsif ($self->extcmd == 1) { # TODO: remove
2121	$msg{msgtype} = "event_$type";	3129	push @msg, msgtype => "event_$type";
2122	$self->send_packet ("ext " . cf::to_json \%msg);	3130	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3131	}
		3132	}
		3133
		3134	=item $client->ext_reply ($msgid, @msg)
		3135
		3136	Sends an ext reply to the client.
		3137
		3138	=cut
		3139
		3140	sub cf::client::ext_reply($$@) {
		3141	my ($self, $id, @msg) = @_;
		3142
		3143	if ($self->extcmd == 2) {
		3144	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3145	} elsif ($self->extcmd == 1) {
		3146	#TODO: version 1, remove
		3147	unshift @msg, msgtype => "reply", msgid => $id;
		3148	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3149	}
2123	}	3150	}
2124		3151
2125	=item $success = $client->query ($flags, "text", \&cb)	3152	=item $success = $client->query ($flags, "text", \&cb)
2126		3153
2127	Queues a query to the client, calling the given callback with	3154	Queues a query to the client, calling the given callback with
2128	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3155	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2129	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3156	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2130		3157
2131	Queries can fail, so check the return code. Or don't, as queries will become	3158	Queries can fail, so check the return code. Or don't, as queries will
2132	reliable at some point in the future.	3159	become reliable at some point in the future.
2133		3160
2134	=cut	3161	=cut
2135		3162
2136	sub cf::client::query {	3163	sub cf::client::query {
2137	my ($self, $flags, $text, $cb) = @_;	3164	my ($self, $flags, $text, $cb) = @_;
…		…
2145	utf8::encode $text;	3172	utf8::encode $text;
2146	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3173	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2147		3174
2148	$self->send_packet ($self->{query_queue}[0][0])	3175	$self->send_packet ($self->{query_queue}[0][0])
2149	if @{ $self->{query_queue} } == 1;	3176	if @{ $self->{query_queue} } == 1;
		3177
		3178	1
2150	}	3179	}
2151		3180
2152	cf::client->attach (	3181	cf::client->attach (
		3182	on_connect => sub {
		3183	my ($ns) = @_;
		3184
		3185	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3186	},
2153	on_reply => sub {	3187	on_reply => sub {
2154	my ($ns, $msg) = @_;	3188	my ($ns, $msg) = @_;
2155		3189
2156	# this weird shuffling is so that direct followup queries	3190	# this weird shuffling is so that direct followup queries
2157	# get handled first	3191	# get handled first
…		…
2169	} else {	3203	} else {
2170	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3204	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2171	}	3205	}
2172	}	3206	}
2173	},	3207	},
		3208	on_exticmd => sub {
		3209	my ($ns, $buf) = @_;
		3210
		3211	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3212
		3213	if (ref $msg) {
		3214	my ($type, $reply, @payload) =
		3215	"ARRAY" eq ref $msg
		3216	? @$msg
		3217	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3218
		3219	my @reply;
		3220
		3221	if (my $cb = $EXTICMD{$type}) {
		3222	@reply = $cb->($ns, @payload);
		3223	}
		3224
		3225	$ns->ext_reply ($reply, @reply)
		3226	if $reply;
		3227
		3228	} else {
		3229	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3230	}
		3231
		3232	cf::override;
		3233	},
2174	);	3234	);
2175		3235
2176	=item $client->async (\&cb)	3236	=item $client->async (\&cb)
2177		3237
2178	Create a new coroutine, running the specified callback. The coroutine will	3238	Create a new coroutine, running the specified callback. The coroutine will
…		…
2194		3254
2195	$coro	3255	$coro
2196	}	3256	}
2197		3257
2198	cf::client->attach (	3258	cf::client->attach (
2199	on_destroy => sub {	3259	on_client_destroy => sub {
2200	my ($ns) = @_;	3260	my ($ns) = @_;
2201		3261
2202	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3262	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
2203	},	3263	},
2204	);	3264	);
…		…
2219	our $safe = new Safe "safe";	3279	our $safe = new Safe "safe";
2220	our $safe_hole = new Safe::Hole;	3280	our $safe_hole = new Safe::Hole;
2221		3281
2222	$SIG{FPE} = 'IGNORE';	3282	$SIG{FPE} = 'IGNORE';
2223		3283
2224	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3284	$safe->permit_only (Opcode::opset qw(
		3285	:base_core :base_mem :base_orig :base_math :base_loop
		3286	grepstart grepwhile mapstart mapwhile
		3287	sort time
		3288	));
2225		3289
2226	# here we export the classes and methods available to script code	3290	# here we export the classes and methods available to script code
2227		3291
2228	=pod	3292	=pod
2229		3293
2230	The following functions and methods are available within a safe environment:	3294	The following functions and methods are available within a safe environment:
2231		3295
2232	cf::object contr pay_amount pay_player map	3296	cf::object
		3297	contr pay_amount pay_player map x y force_find force_add destroy
		3298	insert remove name archname title slaying race decrease split
		3299	value
		3300
2233	cf::object::player player	3301	cf::object::player
2234	cf::player peaceful	3302	player
2235	cf::map trigger	3303
		3304	cf::player
		3305	peaceful
		3306
		3307	cf::map
		3308	trigger
2236		3309
2237	=cut	3310	=cut
2238		3311
2239	for (	3312	for (
2240	["cf::object" => qw(contr pay_amount pay_player map)],	3313	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3314	insert remove inv nrof name archname title slaying race
		3315	decrease split destroy change_exp value msg lore send_msg)],
2241	["cf::object::player" => qw(player)],	3316	["cf::object::player" => qw(player)],
2242	["cf::player" => qw(peaceful)],	3317	["cf::player" => qw(peaceful send_msg)],
2243	["cf::map" => qw(trigger)],	3318	["cf::map" => qw(trigger)],
2244	) {	3319	) {
2245	no strict 'refs';
2246	my ($pkg, @funs) = @$_;	3320	my ($pkg, @funs) = @$_;
2247	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3321	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
2248	for @funs;	3322	for @funs;
2249	}	3323	}
2250		3324
…		…
2265		3339
2266	my $qcode = $code;	3340	my $qcode = $code;
2267	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3341	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2268	$qcode =~ s/\n/\\n/g;	3342	$qcode =~ s/\n/\\n/g;
2269		3343
		3344	%vars = (_dummy => 0) unless %vars;
		3345
		3346	my @res;
2270	local $_;	3347	local $_;
2271	local @safe::cf::_safe_eval_args = values %vars;
2272		3348
2273	my $eval =	3349	my $eval =
2274	"do {\n"	3350	"do {\n"
2275	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3351	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
2276	. "#line 0 \"{$qcode}\"\n"	3352	. "#line 0 \"{$qcode}\"\n"
2277	. $code	3353	. $code
2278	. "\n}"	3354	. "\n}"
2279	;	3355	;
2280		3356
		3357	if ($CFG{safe_eval}) {
2281	sub_generation_inc;	3358	sub_generation_inc;
		3359	local @safe::cf::_safe_eval_args = values %vars;
2282	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3360	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
2283	sub_generation_inc;	3361	sub_generation_inc;
		3362	} else {
		3363	local @cf::_safe_eval_args = values %vars;
		3364	@res = wantarray ? eval eval : scalar eval $eval;
		3365	}
2284		3366
2285	if ($@) {	3367	if ($@) {
2286	warn "$@";	3368	warn "$@",
2287	warn "while executing safe code '$code'\n";	3369	"while executing safe code '$code'\n",
2288	warn "with arguments " . (join " ", %vars) . "\n";	3370	"with arguments " . (join " ", %vars) . "\n";
2289	}	3371	}
2290		3372
2291	wantarray ? @res : $res[0]	3373	wantarray ? @res : $res[0]
2292	}	3374	}
2293		3375
…		…
2307	=cut	3389	=cut
2308		3390
2309	sub register_script_function {	3391	sub register_script_function {
2310	my ($fun, $cb) = @_;	3392	my ($fun, $cb) = @_;
2311		3393
2312	no strict 'refs';	3394	$fun = "safe::$fun" if $CFG{safe_eval};
2313	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3395	*$fun = $safe_hole->wrap ($cb);
2314	}	3396	}
2315		3397
2316	=back	3398	=back
2317		3399
2318	=cut	3400	=cut
2319
2320	#############################################################################
2321
2322	=head2 EXTENSION DATABASE SUPPORT
2323
2324	Crossfire maintains a very simple database for extension use. It can
2325	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2326	convert to/from binary).
2327
2328	The parameter C<$family> should best start with the name of the extension
2329	using it, it should be unique.
2330
2331	=over 4
2332
2333	=item $value = cf::db_get $family => $key
2334
2335	Returns a single value from the database.
2336
2337	=item cf::db_put $family => $key => $value
2338
2339	Stores the given C<$value> in the family.
2340
2341	=cut
2342
2343	our $DB;
2344
2345	sub db_init {
2346	unless ($DB) {
2347	$DB = BDB::db_create $DB_ENV;
2348
2349	cf::sync_job {
2350	eval {
2351	$DB->set_flags (BDB::CHKSUM);
2352
2353	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2354	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2355	cf::cleanup "db_open(db): $!" if $!;
2356	};
2357	cf::cleanup "db_open(db): $@" if $@;
2358	};
2359	}
2360	}
2361
2362	sub db_get($$) {
2363	my $key = "$_[0]/$_[1]";
2364
2365	cf::sync_job {
2366	BDB::db_get $DB, undef, $key, my $data;
2367
2368	$! ? ()
2369	: $data
2370	}
2371	}
2372
2373	sub db_put($$$) {
2374	BDB::dbreq_pri 4;
2375	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2376	}
2377
2378	=item cf::cache $id => [$paths...], $processversion => $process
2379
2380	Generic caching function that returns the value of the resource $id,
2381	caching and regenerating as required.
2382
2383	This function can block.
2384
2385	=cut
2386
2387	sub cache {
2388	my ($id, $src, $processversion, $process) = @_;
2389
2390	my $meta =
2391	join "\x00",
2392	$processversion,
2393	map {
2394	aio_stat $_
2395	and Carp::croak "$_: $!";
2396
2397	($_, (stat _)[7,9])
2398	} @$src;
2399
2400	my $dbmeta = db_get cache => "$id/meta";
2401	if ($dbmeta ne $meta) {
2402	# changed, we may need to process
2403
2404	my @data;
2405	my $md5;
2406
2407	for (0 .. $#$src) {
2408	0 <= aio_load $src->[$_], $data[$_]
2409	or Carp::croak "$src->[$_]: $!";
2410	}
2411
2412	# if processing is expensive, check
2413	# checksum first
2414	if (1) {
2415	$md5 =
2416	join "\x00",
2417	$processversion,
2418	map {
2419	Coro::cede;
2420	($src->[$_], Digest::MD5::md5_hex $data[$_])
2421	} 0.. $#$src;
2422
2423
2424	my $dbmd5 = db_get cache => "$id/md5";
2425	if ($dbmd5 eq $md5) {
2426	db_put cache => "$id/meta", $meta;
2427
2428	return db_get cache => "$id/data";
2429	}
2430	}
2431
2432	my $t1 = Time::HiRes::time;
2433	my $data = $process->(\@data);
2434	my $t2 = Time::HiRes::time;
2435
2436	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2437
2438	db_put cache => "$id/data", $data;
2439	db_put cache => "$id/md5" , $md5;
2440	db_put cache => "$id/meta", $meta;
2441
2442	return $data;
2443	}
2444
2445	db_get cache => "$id/data"
2446	}
2447
2448	=item fork_call { }, $args
2449
2450	Executes the given code block with the given arguments in a seperate
2451	process, returning the results. Everything must be serialisable with
2452	Coro::Storable. May, of course, block. Note that the executed sub may
2453	never block itself or use any form of Event handling.
2454
2455	=cut
2456
2457	sub fork_call(&@) {
2458	my ($cb, @args) = @_;
2459
2460	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2461	# or die "socketpair: $!";
2462	pipe my $fh1, my $fh2
2463	or die "pipe: $!";
2464
2465	if (my $pid = fork) {
2466	close $fh2;
2467
2468	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2469	$res = Coro::Storable::thaw $res;
2470
2471	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2472
2473	die $$res unless "ARRAY" eq ref $res;
2474
2475	return wantarray ? @$res : $res->[-1];
2476	} else {
2477	reset_signals;
2478	local $SIG{__WARN__};
2479	local $SIG{__DIE__};
2480	eval {
2481	close $fh1;
2482
2483	my @res = eval { $cb->(@args) };
2484	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2485	};
2486
2487	warn $@ if $@;
2488	_exit 0;
2489	}
2490	}
2491
2492
2493		3401
2494	#############################################################################	3402	#############################################################################
2495	# the server's init and main functions	3403	# the server's init and main functions
2496		3404
2497	sub load_facedata($) {	3405	sub load_facedata($) {
2498	my ($path) = @_;	3406	my ($path) = @_;
2499		3407
		3408	# HACK to clear player env face cache, we need some signal framework
		3409	# for this (global event?)
		3410	%ext::player_env::MUSIC_FACE_CACHE = ();
		3411
		3412	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3413
2500	warn "loading facedata from $path\n";	3414	trace "loading facedata from $path\n";
2501		3415
2502	my $facedata;
2503	0 < aio_load $path, $facedata	3416	0 < aio_load $path, my $facedata
2504	or die "$path: $!";	3417	or die "$path: $!";
2505		3418
2506	$facedata = Coro::Storable::thaw $facedata;	3419	$facedata = Coro::Storable::thaw $facedata;
2507		3420
2508	$facedata->{version} == 2	3421	$facedata->{version} == 2
2509	or cf::cleanup "$path: version mismatch, cannot proceed.";	3422	or cf::cleanup "$path: version mismatch, cannot proceed.";
2510		3423
		3424	# patch in the exptable
		3425	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
		3426	$facedata->{resource}{"res/exp_table"} = {
		3427	type => FT_RSRC,
		3428	data => $exp_table,
		3429	hash => (Digest::MD5::md5 $exp_table),
		3430	};
		3431	cf::cede_to_tick;
		3432
2511	{	3433	{
2512	my $faces = $facedata->{faceinfo};	3434	my $faces = $facedata->{faceinfo};
2513		3435
2514	while (my ($face, $info) = each %$faces) {	3436	while (my ($face, $info) = each %$faces) {
2515	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3437	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3438
2516	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3439	cf::face::set_visibility $idx, $info->{visibility};
		3440	cf::face::set_magicmap $idx, $info->{magicmap};
2517	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3441	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
2518	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3442	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
2519	Coro::cede;	3443
		3444	cf::cede_to_tick;
2520	}	3445	}
2521		3446
2522	while (my ($face, $info) = each %$faces) {	3447	while (my ($face, $info) = each %$faces) {
2523	next unless $info->{smooth};	3448	next unless $info->{smooth};
		3449
2524	my $idx = cf::face::find $face	3450	my $idx = cf::face::find $face
2525	or next;	3451	or next;
		3452
2526	if (my $smooth = cf::face::find $info->{smooth}) {	3453	if (my $smooth = cf::face::find $info->{smooth}) {
		3454	cf::face::set_smooth $idx, $smooth;
2527	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3455	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2528	} else {	3456	} else {
2529	warn "smooth face '$info->{smooth}' not found for face '$face'";	3457	error "smooth face '$info->{smooth}' not found for face '$face'";
2530	}	3458	}
2531	Coro::cede;	3459
		3460	cf::cede_to_tick;
2532	}	3461	}
2533	}	3462	}
2534		3463
2535	{	3464	{
2536	my $anims = $facedata->{animinfo};	3465	my $anims = $facedata->{animinfo};
2537		3466
2538	while (my ($anim, $info) = each %$anims) {	3467	while (my ($anim, $info) = each %$anims) {
2539	cf::anim::set $anim, $info->{frames}, $info->{facings};	3468	cf::anim::set $anim, $info->{frames}, $info->{facings};
2540	Coro::cede;	3469	cf::cede_to_tick;
2541	}	3470	}
2542		3471
2543	cf::anim::invalidate_all; # d'oh	3472	cf::anim::invalidate_all; # d'oh
2544	}	3473	}
2545		3474
		3475	{
		3476	my $res = $facedata->{resource};
		3477
		3478	while (my ($name, $info) = each %$res) {
		3479	if (defined $info->{type}) {
		3480	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3481
		3482	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3483	cf::face::set_type $idx, $info->{type};
		3484	} else {
		3485	$RESOURCE{$name} = $info; # unused
		3486	}
		3487
		3488	cf::cede_to_tick;
		3489	}
		3490	}
		3491
		3492	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3493
2546	1	3494	1
2547	}	3495	}
2548		3496
		3497	register_exticmd fx_want => sub {
		3498	my ($ns, $want) = @_;
		3499
		3500	while (my ($k, $v) = each %$want) {
		3501	$ns->fx_want ($k, $v);
		3502	}
		3503	};
		3504
		3505	sub load_resource_file($) {
		3506	my $guard = lock_acquire "load_resource_file";
		3507
		3508	my $status = load_resource_file_ $_[0];
		3509	get_slot 0.1, 100;
		3510	cf::arch::commit_load;
		3511
		3512	$status
		3513	}
		3514
2549	sub reload_regions {	3515	sub reload_regions {
		3516	# HACK to clear player env face cache, we need some signal framework
		3517	# for this (global event?)
		3518	%ext::player_env::MUSIC_FACE_CACHE = ();
		3519
2550	load_resource_file "$MAPDIR/regions"	3520	load_resource_file "$MAPDIR/regions"
2551	or die "unable to load regions file\n";	3521	or die "unable to load regions file\n";
		3522
		3523	for (cf::region::list) {
		3524	$_->{match} = qr/$_->{match}/
		3525	if exists $_->{match};
		3526	}
2552	}	3527	}
2553		3528
2554	sub reload_facedata {	3529	sub reload_facedata {
2555	load_facedata "$DATADIR/facedata"	3530	load_facedata "$DATADIR/facedata"
2556	or die "unable to load facedata\n";	3531	or die "unable to load facedata\n";
…		…
2564	sub reload_treasures {	3539	sub reload_treasures {
2565	load_resource_file "$DATADIR/treasures"	3540	load_resource_file "$DATADIR/treasures"
2566	or die "unable to load treasurelists\n";	3541	or die "unable to load treasurelists\n";
2567	}	3542	}
2568		3543
		3544	sub reload_sound {
		3545	trace "loading sound config from $DATADIR/sound\n";
		3546
		3547	0 < Coro::AIO::aio_load "$DATADIR/sound", my $data
		3548	or die "$DATADIR/sound $!";
		3549
		3550	my $soundconf = JSON::XS->new->utf8->relaxed->decode ($data);
		3551
		3552	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3553	my $sound = $soundconf->{compat}[$_]
		3554	or next;
		3555
		3556	my $face = cf::face::find "sound/$sound->[1]";
		3557	cf::sound::set $sound->[0] => $face;
		3558	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3559	}
		3560
		3561	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3562	my $face = cf::face::find "sound/$v";
		3563	cf::sound::set $k => $face;
		3564	}
		3565	}
		3566
2569	sub reload_resources {	3567	sub reload_resources {
2570	warn "reloading resource files...\n";	3568	trace "reloading resource files...\n";
2571		3569
		3570	reload_exp_table;
		3571	reload_materials;
		3572	reload_facedata;
		3573	reload_sound;
		3574	reload_archetypes;
2572	reload_regions;	3575	reload_regions;
2573	reload_facedata;
2574	reload_archetypes;
2575	reload_treasures;	3576	reload_treasures;
2576		3577
2577	warn "finished reloading resource files\n";	3578	trace "finished reloading resource files\n";
2578	}	3579	}
2579		3580
2580	sub init {	3581	sub reload_config {
2581	reload_resources;	3582	trace "reloading config file...\n";
2582	}
2583		3583
2584	sub cfg_load {	3584	0 < aio_load "$CONFDIR/config", my $config
2585	open my $fh, "<:utf8", "$CONFDIR/config"	3585	or die "$CONFDIR/config: $!";
2586	or return;
2587		3586
2588	local $/;	3587	utf8::decode $config;
2589	*CFG = YAML::Syck::Load <$fh>;	3588	*CFG = yaml_load $config;
2590		3589
2591	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3590	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
2592		3591
2593	$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};
2594	$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};
2595		3594
2596	if (exists $CFG{mlockall}) {	3595	if (exists $CFG{mlockall}) {
…		…
2600	};	3599	};
2601	warn $@ if $@;	3600	warn $@ if $@;
2602	}	3601	}
2603	}	3602	}
2604		3603
		3604	sub pidfile() {
		3605	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3606	or die "$PIDFILE: $!";
		3607	flock $fh, &Fcntl::LOCK_EX
		3608	or die "$PIDFILE: flock: $!";
		3609	$fh
		3610	}
		3611
		3612	# make sure only one server instance is running at any one time
		3613	sub atomic {
		3614	my $fh = pidfile;
		3615
		3616	my $pid = <$fh>;
		3617	kill 9, $pid if $pid > 0;
		3618
		3619	seek $fh, 0, 0;
		3620	print $fh $$;
		3621	}
		3622
		3623	sub main_loop {
		3624	trace "EV::loop starting\n";
		3625	if (1) {
		3626	EV::loop;
		3627	}
		3628	trace "EV::loop returned\n";
		3629	goto &main_loop unless $REALLY_UNLOOP;
		3630	}
		3631
2605	sub main {	3632	sub main {
		3633	cf::init_globals; # initialise logging
		3634
		3635	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3636	LOG llevInfo, "Copyright (C) 2005-2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3637	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3638	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3639
		3640	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3641
2606	# we must not ever block the main coroutine	3642	# we must not ever block the main coroutine
2607	local $Coro::idle = sub {	3643	local $Coro::idle = sub {
2608	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3644	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2609	(async {	3645	(async {
2610	Event::one_event;	3646	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3647	EV::loop EV::LOOP_ONESHOT;
2611	})->prio (Coro::PRIO_MAX);	3648	})->prio (Coro::PRIO_MAX);
2612	};	3649	};
2613		3650
2614	cfg_load;	3651	evthread_start IO::AIO::poll_fileno;
		3652
		3653	cf::sync_job {
		3654	cf::incloader::init ();
		3655
		3656	cf::init_anim;
		3657	cf::init_attackmess;
		3658	cf::init_dynamic;
		3659
		3660	cf::load_settings;
		3661
		3662	reload_resources;
		3663	reload_config;
2615	db_init;	3664	db_init;
		3665
		3666	cf::init_uuid;
		3667	cf::init_signals;
		3668	cf::init_skills;
		3669
		3670	cf::init_beforeplay;
		3671
		3672	atomic;
		3673
2616	load_extensions;	3674	load_extensions;
2617		3675
2618	$TICK_WATCHER->start;	3676	utime time, time, $RUNTIMEFILE;
2619	Event::loop;	3677
		3678	# no (long-running) fork's whatsoever before this point(!)
		3679	use POSIX ();
		3680	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3681
		3682	cf::_post_init 0;
		3683	};
		3684
		3685	cf::object::thawer::errors_are_fatal 0;
		3686	info "parse errors in files are no longer fatal from this point on.\n";
		3687
		3688	my $free_main; $free_main = EV::idle sub {
		3689	undef $free_main;
		3690	undef &main; # free gobs of memory :)
		3691	};
		3692
		3693	goto &main_loop;
2620	}	3694	}
2621		3695
2622	#############################################################################	3696	#############################################################################
2623	# initialisation and cleanup	3697	# initialisation and cleanup
2624		3698
2625	# install some emergency cleanup handlers	3699	# install some emergency cleanup handlers
2626	BEGIN {	3700	BEGIN {
		3701	our %SIGWATCHER = ();
2627	for my $signal (qw(INT HUP TERM)) {	3702	for my $signal (qw(INT HUP TERM)) {
2628	Event->signal (	3703	$SIGWATCHER{$signal} = AE::signal $signal, sub {
2629	reentrant => 0,
2630	data => WF_AUTOCANCEL,
2631	signal => $signal,
2632	prio => 0,
2633	cb => sub {
2634	cf::cleanup "SIG$signal";	3704	cf::cleanup "SIG$signal";
2635	},
2636	);	3705	};
		3706	}
		3707	}
		3708
		3709	sub write_runtime_sync {
		3710	my $t0 = AE::time;
		3711
		3712	# first touch the runtime file to show we are still running:
		3713	# the fsync below can take a very very long time.
		3714
		3715	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3716
		3717	my $guard = cf::lock_acquire "write_runtime";
		3718
		3719	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3720	or return;
		3721
		3722	my $value = $cf::RUNTIME + 90 + 10;
		3723	# 10 is the runtime save interval, for a monotonic clock
		3724	# 60 allows for the watchdog to kill the server.
		3725
		3726	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3727	and return;
		3728
		3729	# always fsync - this file is important
		3730	aio_fsync $fh
		3731	and return;
		3732
		3733	# touch it again to show we are up-to-date
		3734	aio_utime $fh, undef, undef;
		3735
		3736	close $fh
		3737	or return;
		3738
		3739	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3740	and return;
		3741
		3742	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3743
2637	}	3744	1
		3745	}
		3746
		3747	our $uuid_lock;
		3748	our $uuid_skip;
		3749
		3750	sub write_uuid_sync($) {
		3751	$uuid_skip ||= $_[0];
		3752
		3753	return if $uuid_lock;
		3754	local $uuid_lock = 1;
		3755
		3756	my $uuid = "$LOCALDIR/uuid";
		3757
		3758	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3759	or return;
		3760
		3761	my $value = uuid_seq uuid_cur;
		3762
		3763	unless ($value) {
		3764	info "cowardly refusing to write zero uuid value!\n";
		3765	return;
		3766	}
		3767
		3768	my $value = uuid_str $value + $uuid_skip;
		3769	$uuid_skip = 0;
		3770
		3771	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3772	and return;
		3773
		3774	# always fsync - this file is important
		3775	aio_fsync $fh
		3776	and return;
		3777
		3778	close $fh
		3779	or return;
		3780
		3781	aio_rename "$uuid~", $uuid
		3782	and return;
		3783
		3784	trace "uuid file written ($value).\n";
		3785
		3786	1
		3787
		3788	}
		3789
		3790	sub write_uuid($$) {
		3791	my ($skip, $sync) = @_;
		3792
		3793	$sync ? write_uuid_sync $skip
		3794	: async { write_uuid_sync $skip };
2638	}	3795	}
2639		3796
2640	sub emergency_save() {	3797	sub emergency_save() {
2641	my $freeze_guard = cf::freeze_mainloop;	3798	my $freeze_guard = cf::freeze_mainloop;
2642		3799
2643	warn "enter emergency perl save\n";	3800	info "emergency_perl_save: enter\n";
		3801
		3802	# this is a trade-off: we want to be very quick here, so
		3803	# save all maps without fsync, and later call a global sync
		3804	# (which in turn might be very very slow)
		3805	local $USE_FSYNC = 0;
2644		3806
2645	cf::sync_job {	3807	cf::sync_job {
		3808	cf::write_runtime_sync; # external watchdog should not bark
		3809
2646	# use a peculiar iteration method to avoid tripping on perl	3810	# use a peculiar iteration method to avoid tripping on perl
2647	# refcount bugs in for. also avoids problems with players	3811	# refcount bugs in for. also avoids problems with players
2648	# and maps saved/destroyed asynchronously.	3812	# and maps saved/destroyed asynchronously.
2649	warn "begin emergency player save\n";	3813	info "emergency_perl_save: begin player save\n";
2650	for my $login (keys %cf::PLAYER) {	3814	for my $login (keys %cf::PLAYER) {
2651	my $pl = $cf::PLAYER{$login} or next;	3815	my $pl = $cf::PLAYER{$login} or next;
2652	$pl->valid or next;	3816	$pl->valid or next;
		3817	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2653	$pl->save;	3818	$pl->save;
2654	}	3819	}
2655	warn "end emergency player save\n";	3820	info "emergency_perl_save: end player save\n";
2656		3821
2657	warn "begin emergency map save\n";	3822	cf::write_runtime_sync; # external watchdog should not bark
		3823
		3824	info "emergency_perl_save: begin map save\n";
2658	for my $path (keys %cf::MAP) {	3825	for my $path (keys %cf::MAP) {
2659	my $map = $cf::MAP{$path} or next;	3826	my $map = $cf::MAP{$path} or next;
2660	$map->valid or next;	3827	$map->valid or next;
2661	$map->save;	3828	$map->save;
2662	}	3829	}
2663	warn "end emergency map save\n";	3830	info "emergency_perl_save: end map save\n";
2664		3831
2665	warn "begin emergency database checkpoint\n";	3832	cf::write_runtime_sync; # external watchdog should not bark
		3833
		3834	info "emergency_perl_save: begin database checkpoint\n";
2666	BDB::db_env_txn_checkpoint $DB_ENV;	3835	BDB::db_env_txn_checkpoint $DB_ENV;
2667	warn "end emergency database checkpoint\n";	3836	info "emergency_perl_save: end database checkpoint\n";
		3837
		3838	info "emergency_perl_save: begin write uuid\n";
		3839	write_uuid_sync 1;
		3840	info "emergency_perl_save: end write uuid\n";
		3841
		3842	cf::write_runtime_sync; # external watchdog should not bark
		3843
		3844	trace "emergency_perl_save: syncing database to disk";
		3845	BDB::db_env_txn_checkpoint $DB_ENV;
		3846
		3847	info "emergency_perl_save: starting sync\n";
		3848	IO::AIO::aio_sync sub {
		3849	info "emergency_perl_save: finished sync\n";
		3850	};
		3851
		3852	cf::write_runtime_sync; # external watchdog should not bark
		3853
		3854	trace "emergency_perl_save: flushing outstanding aio requests";
		3855	while (IO::AIO::nreqs || BDB::nreqs) {
		3856	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3857	}
		3858
		3859	cf::write_runtime_sync; # external watchdog should not bark
2668	};	3860	};
2669		3861
2670	warn "leave emergency perl save\n";	3862	info "emergency_perl_save: leave\n";
2671	}	3863	}
2672		3864
2673	sub post_cleanup {	3865	sub post_cleanup {
2674	my ($make_core) = @_;	3866	my ($make_core) = @_;
2675		3867
		3868	IO::AIO::flush;
		3869
2676	warn Carp::longmess "post_cleanup backtrace"	3870	error Carp::longmess "post_cleanup backtrace"
2677	if $make_core;	3871	if $make_core;
		3872
		3873	my $fh = pidfile;
		3874	unlink $PIDFILE if <$fh> == $$;
		3875	}
		3876
		3877	# a safer delete_package, copied from Symbol
		3878	sub clear_package($) {
		3879	my $pkg = shift;
		3880
		3881	# expand to full symbol table name if needed
		3882	unless ($pkg =~ /^main::.*::$/) {
		3883	$pkg = "main$pkg" if $pkg =~ /^::/;
		3884	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3885	$pkg .= '::' unless $pkg =~ /::$/;
		3886	}
		3887
		3888	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3889	my $stem_symtab = *{$stem}{HASH};
		3890
		3891	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3892	or return;
		3893
		3894	# clear all symbols
		3895	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3896	for my $name (keys %$leaf_symtab) {
		3897	_gv_clear *{"$pkg$name"};
		3898	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3899	}
2678	}	3900	}
2679		3901
2680	sub do_reload_perl() {	3902	sub do_reload_perl() {
2681	# can/must only be called in main	3903	# can/must only be called in main
2682	if ($Coro::current != $Coro::main) {	3904	unless (in_main) {
2683	warn "can only reload from main coroutine";	3905	error "can only reload from main coroutine";
2684	return;	3906	return;
2685	}	3907	}
2686		3908
2687	warn "reloading...";	3909	return if $RELOAD++;
2688		3910
2689	warn "entering sync_job";	3911	my $t1 = AE::time;
2690		3912
		3913	while ($RELOAD) {
		3914	cf::get_slot 0.1, -1, "reload_perl";
		3915	info "perl_reload: reloading...";
		3916
		3917	trace "perl_reload: entering sync_job";
		3918
2691	cf::sync_job {	3919	cf::sync_job {
2692	cf::write_runtime; # external watchdog should not bark
2693	cf::emergency_save;	3920	#cf::emergency_save;
2694	cf::write_runtime; # external watchdog should not bark
2695		3921
2696	warn "syncing database to disk";
2697	BDB::db_env_txn_checkpoint $DB_ENV;
2698
2699	# if anything goes wrong in here, we should simply crash as we already saved
2700
2701	warn "cancelling all WF_AUTOCANCEL watchers";
2702	for (Event::all_watchers) {
2703	$_->cancel if $_->data & WF_AUTOCANCEL;
2704	}
2705
2706	warn "flushing outstanding aio requests";
2707	for (;;) {
2708	BDB::flush;
2709	IO::AIO::flush;
2710	Coro::cede;
2711	last unless IO::AIO::nreqs || BDB::nreqs;
2712	warn "iterate...";
2713	}
2714
2715	++$RELOAD;
2716
2717	warn "cancelling all extension coros";	3922	trace "perl_reload: cancelling all extension coros";
2718	$_->cancel for values %EXT_CORO;	3923	$_->cancel for values %EXT_CORO;
2719	%EXT_CORO = ();	3924	%EXT_CORO = ();
2720		3925
2721	warn "removing commands";	3926	trace "perl_reload: removing commands";
2722	%COMMAND = ();	3927	%COMMAND = ();
2723		3928
2724	warn "removing ext commands";	3929	trace "perl_reload: removing ext/exti commands";
2725	%EXTCMD = ();	3930	%EXTCMD = ();
		3931	%EXTICMD = ();
2726		3932
2727	warn "unloading/nuking all extensions";	3933	trace "perl_reload: unloading/nuking all extensions";
2728	for my $pkg (@EXTS) {	3934	for my $pkg (@EXTS) {
2729	warn "... unloading $pkg";	3935	trace "... unloading $pkg";
2730		3936
2731	if (my $cb = $pkg->can ("unload")) {	3937	if (my $cb = $pkg->can ("unload")) {
2732	eval {	3938	eval {
2733	$cb->($pkg);	3939	$cb->($pkg);
2734	1	3940	1
2735	} or warn "$pkg unloaded, but with errors: $@";	3941	} or error "$pkg unloaded, but with errors: $@";
		3942	}
		3943
		3944	trace "... clearing $pkg";
		3945	clear_package $pkg;
2736	}	3946	}
2737		3947
2738	warn "... nuking $pkg";
2739	Symbol::delete_package $pkg;
2740	}
2741
2742	warn "unloading all perl modules loaded from $LIBDIR";	3948	trace "perl_reload: unloading all perl modules loaded from $LIBDIR";
2743	while (my ($k, $v) = each %INC) {	3949	while (my ($k, $v) = each %INC) {
2744	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3950	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2745		3951
2746	warn "... unloading $k";	3952	trace "... unloading $k";
2747	delete $INC{$k};	3953	delete $INC{$k};
2748		3954
2749	$k =~ s/\.pm$//;	3955	$k =~ s/\.pm$//;
2750	$k =~ s/\//::/g;	3956	$k =~ s/\//::/g;
2751		3957
2752	if (my $cb = $k->can ("unload_module")) {	3958	if (my $cb = $k->can ("unload_module")) {
2753	$cb->();	3959	$cb->();
		3960	}
		3961
		3962	clear_package $k;
2754	}	3963	}
2755		3964
2756	Symbol::delete_package $k;
2757	}
2758
2759	warn "getting rid of safe::, as good as possible";	3965	trace "perl_reload: getting rid of safe::, as good as possible";
2760	Symbol::delete_package "safe::$_"	3966	clear_package "safe::$_"
2761	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3967	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2762		3968
2763	warn "unloading cf.pm \"a bit\"";	3969	trace "perl_reload: unloading cf.pm \"a bit\"";
2764	delete $INC{"cf.pm"};	3970	delete $INC{"cf.pm"};
2765	delete $INC{"cf/pod.pm"};	3971	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2766		3972
2767	# don't, removes xs symbols, too,	3973	# don't, removes xs symbols, too,
2768	# and global variables created in xs	3974	# and global variables created in xs
2769	#Symbol::delete_package __PACKAGE__;	3975	#clear_package __PACKAGE__;
2770		3976
2771	warn "unload completed, starting to reload now";	3977	info "perl_reload: unload completed, starting to reload now";
2772		3978
2773	warn "reloading cf.pm";	3979	trace "perl_reload: reloading cf.pm";
2774	require cf;	3980	require cf;
2775	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3981	cf::_connect_to_perl_1;
2776		3982
2777	warn "loading config and database again";	3983	trace "perl_reload: loading config and database again";
2778	cf::cfg_load;	3984	cf::reload_config;
2779		3985
2780	warn "loading extensions";	3986	trace "perl_reload: loading extensions";
2781	cf::load_extensions;	3987	cf::load_extensions;
2782		3988
		3989	if ($REATTACH_ON_RELOAD) {
2783	warn "reattaching attachments to objects/players";	3990	trace "perl_reload: reattaching attachments to objects/players";
2784	_global_reattach; # objects, sockets	3991	_global_reattach; # objects, sockets
2785	warn "reattaching attachments to maps";	3992	trace "perl_reload: reattaching attachments to maps";
2786	reattach $_ for values %MAP;	3993	reattach $_ for values %MAP;
2787	warn "reattaching attachments to players";	3994	trace "perl_reload: reattaching attachments to players";
2788	reattach $_ for values %PLAYER;	3995	reattach $_ for values %PLAYER;
		3996	}
2789		3997
2790	warn "leaving sync_job";	3998	cf::_post_init 1;
2791		3999
		4000	trace "perl_reload: leaving sync_job";
		4001
2792	1	4002	1
2793	} or do {	4003	} or do {
2794	warn $@;	4004	error $@;
2795	warn "error while reloading, exiting.";	4005	cf::cleanup "perl_reload: error, exiting.";
2796	exit 1;	4006	};
		4007
		4008	--$RELOAD;
2797	};	4009	}
2798		4010
2799	warn "reloaded";	4011	$t1 = AE::time - $t1;
		4012	info "perl_reload: completed in ${t1}s\n";
2800	};	4013	};
2801		4014
2802	our $RELOAD_WATCHER; # used only during reload	4015	our $RELOAD_WATCHER; # used only during reload
2803		4016
2804	sub reload_perl() {	4017	sub reload_perl() {
2805	# doing reload synchronously and two reloads happen back-to-back,	4018	# doing reload synchronously and two reloads happen back-to-back,
2806	# coro crashes during coro_state_free->destroy here.	4019	# coro crashes during coro_state_free->destroy here.
2807		4020
2808	$RELOAD_WATCHER ||= Event->timer (	4021	$RELOAD_WATCHER ||= cf::async {
2809	reentrant => 0,	4022	Coro::AIO::aio_wait cache_extensions;
2810	after => 0,	4023
2811	data => WF_AUTOCANCEL,	4024	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
2812	cb => sub {
2813	do_reload_perl;	4025	do_reload_perl;
2814	undef $RELOAD_WATCHER;	4026	undef $RELOAD_WATCHER;
2815	},	4027	};
2816	);	4028	};
2817	}	4029	}
2818		4030
2819	register_command "reload" => sub {	4031	register_command "reload" => sub {
2820	my ($who, $arg) = @_;	4032	my ($who, $arg) = @_;
2821		4033
2822	if ($who->flag (FLAG_WIZ)) {	4034	if ($who->flag (FLAG_WIZ)) {
2823	$who->message ("reloading server.");	4035	$who->message ("reloading server.");
		4036	async {
		4037	$Coro::current->{desc} = "perl_reload";
2824	async { reload_perl };	4038	reload_perl;
		4039	};
2825	}	4040	}
2826	};	4041	};
2827		4042
2828	unshift @INC, $LIBDIR;	4043	#############################################################################
2829		4044
2830	my $bug_warning = 0;	4045	my $bug_warning = 0;
2831		4046
2832	our @WAIT_FOR_TICK;	4047	our @WAIT_FOR_TICK;
2833	our @WAIT_FOR_TICK_BEGIN;	4048	our @WAIT_FOR_TICK_BEGIN;
2834		4049
2835	sub wait_for_tick {	4050	sub wait_for_tick() {
2836	return unless $TICK_WATCHER->is_active;
2837	return if $Coro::current == $Coro::main;	4051	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2838		4052
2839	my $signal = new Coro::Signal;	4053	my $signal = new Coro::Signal;
2840	push @WAIT_FOR_TICK, $signal;	4054	push @WAIT_FOR_TICK, $signal;
2841	$signal->wait;	4055	$signal->wait;
2842	}	4056	}
2843		4057
2844	sub wait_for_tick_begin {	4058	sub wait_for_tick_begin() {
2845	return unless $TICK_WATCHER->is_active;
2846	return if $Coro::current == $Coro::main;	4059	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
2847		4060
2848	my $signal = new Coro::Signal;	4061	my $signal = new Coro::Signal;
2849	push @WAIT_FOR_TICK_BEGIN, $signal;	4062	push @WAIT_FOR_TICK_BEGIN, $signal;
2850	$signal->wait;	4063	$signal->wait;
2851	}	4064	}
2852		4065
2853	$TICK_WATCHER = Event->timer (	4066	sub tick {
2854	reentrant => 0,
2855	parked => 1,
2856	prio => 0,
2857	at => $NEXT_TICK || $TICK,
2858	data => WF_AUTOCANCEL,
2859	cb => sub {
2860	if ($Coro::current != $Coro::main) {	4067	if ($Coro::current != $Coro::main) {
2861	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	4068	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2862	unless ++$bug_warning > 10;	4069	unless ++$bug_warning > 10;
2863	return;	4070	return;
2864	}	4071	}
2865		4072
2866	$NOW = $tick_start = Event::time;
2867
2868	cf::server_tick; # one server iteration	4073	cf::server_tick; # one server iteration
2869		4074
2870	$RUNTIME += $TICK;	4075	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2871	$NEXT_TICK += $TICK;
2872		4076
2873	if ($NOW >= $NEXT_RUNTIME_WRITE) {	4077	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2874	$NEXT_RUNTIME_WRITE = $NOW + 10;	4078	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2875	Coro::async_pool {	4079	Coro::async_pool {
		4080	$Coro::current->{desc} = "runtime saver";
2876	write_runtime	4081	write_runtime_sync
2877	or warn "ERROR: unable to write runtime file: $!";	4082	or error "ERROR: unable to write runtime file: $!";
2878	};
2879	}	4083	};
		4084	}
2880		4085
2881	# my $AFTER = Event::time;
2882	# warn $AFTER - $NOW;#d#
2883
2884	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	4086	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2885	$sig->send;	4087	$sig->send;
2886	}	4088	}
2887	while (my $sig = shift @WAIT_FOR_TICK) {	4089	while (my $sig = shift @WAIT_FOR_TICK) {
2888	$sig->send;	4090	$sig->send;
2889	}	4091	}
2890		4092
2891	$NOW = Event::time;	4093	$LOAD = ($NOW - $TICK_START) / $TICK;
2892
2893	# if we are delayed by four ticks or more, skip them all
2894	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2895
2896	$TICK_WATCHER->at ($NEXT_TICK);
2897	$TICK_WATCHER->start;
2898
2899	$LOAD = ($NOW - $tick_start) / $TICK;
2900	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;	4094	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
2901		4095
2902	_post_tick;	4096	if (0) {
2903		4097	if ($NEXT_TICK) {
2904		4098	my $jitter = $TICK_START - $NEXT_TICK;
		4099	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4100	debug "jitter $JITTER\n";#d#
		4101	}
2905	},	4102	}
2906	);	4103	}
2907		4104
2908	{	4105	{
2909	BDB::max_poll_time $TICK * 0.1;	4106	# configure BDB
2910	$BDB_POLL_WATCHER = Event->io (	4107
2911	reentrant => 0,
2912	fd => BDB::poll_fileno,
2913	poll => 'r',
2914	prio => 0,
2915	data => WF_AUTOCANCEL,
2916	cb => \&BDB::poll_cb,
2917	);
2918	BDB::min_parallel 8;	4108	BDB::min_parallel 16;
2919		4109	BDB::max_poll_reqs $TICK * 0.1;
2920	BDB::set_sync_prepare {	4110	$AnyEvent::BDB::WATCHER->priority (1);
2921	my $status;
2922	my $current = $Coro::current;
2923	(
2924	sub {
2925	$status = $!;
2926	$current->ready; undef $current;
2927	},
2928	sub {
2929	Coro::schedule while defined $current;
2930	$! = $status;
2931	},
2932	)
2933	};
2934		4111
2935	unless ($DB_ENV) {	4112	unless ($DB_ENV) {
2936	$DB_ENV = BDB::db_env_create;	4113	$DB_ENV = BDB::db_env_create;
		4114	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4115	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4116	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4117	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4118	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2937		4119
2938	cf::sync_job {	4120	cf::sync_job {
2939	eval {	4121	eval {
2940	BDB::db_env_open	4122	BDB::db_env_open
2941	$DB_ENV,	4123	$DB_ENV,
…		…
2943	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	4125	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2944	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	4126	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2945	0666;	4127	0666;
2946		4128
2947	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	4129	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2948
2949	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2950	$DB_ENV->set_lk_detect;
2951	};	4130	};
2952		4131
2953	cf::cleanup "db_env_open(db): $@" if $@;	4132	cf::cleanup "db_env_open(db): $@" if $@;
2954	};	4133	};
2955	}	4134	}
		4135
		4136	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4137	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4138	};
		4139	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4140	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4141	};
		4142	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4143	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4144	};
2956	}	4145	}
2957		4146
2958	{	4147	{
		4148	# configure IO::AIO
		4149
2959	IO::AIO::min_parallel 8;	4150	IO::AIO::min_parallel 8;
2960
2961	undef $Coro::AIO::WATCHER;
2962	IO::AIO::max_poll_time $TICK * 0.1;	4151	IO::AIO::max_poll_time $TICK * 0.1;
2963	$AIO_POLL_WATCHER = Event->io (	4152	undef $AnyEvent::AIO::WATCHER;
2964	reentrant => 0,
2965	data => WF_AUTOCANCEL,
2966	fd => IO::AIO::poll_fileno,
2967	poll => 'r',
2968	prio => 6,
2969	cb => \&IO::AIO::poll_cb,
2970	);
2971	}	4153	}
2972		4154
2973	my $_log_backtrace;	4155	my $_log_backtrace;
2974		4156
2975	sub _log_backtrace {	4157	sub _log_backtrace {
…		…
2978	$msg =~ s/\n//;	4160	$msg =~ s/\n//;
2979		4161
2980	# limit the # of concurrent backtraces	4162	# limit the # of concurrent backtraces
2981	if ($_log_backtrace < 2) {	4163	if ($_log_backtrace < 2) {
2982	++$_log_backtrace;	4164	++$_log_backtrace;
		4165	my $perl_bt = Carp::longmess $msg;
2983	async {	4166	async {
		4167	$Coro::current->{desc} = "abt $msg";
		4168
2984	my @bt = fork_call {	4169	my @bt = fork_call {
2985	@addr = map { sprintf "%x", $_ } @addr;	4170	@addr = map { sprintf "%x", $_ } @addr;
2986	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;	4171	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
2987	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"	4172	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
2988	or die "addr2line: $!";	4173	or die "addr2line: $!";
…		…
2996	}	4181	}
2997		4182
2998	@funcs	4183	@funcs
2999	};	4184	};
3000		4185
3001	LOG llevInfo, "[ABT] $msg\n";	4186	LOG llevInfo, "[ABT] $perl_bt\n";
		4187	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
3002	LOG llevInfo, "[ABT] $_\n" for @bt;	4188	LOG llevInfo, "[ABT] $_\n" for @bt;
3003	--$_log_backtrace;	4189	--$_log_backtrace;
3004	};	4190	};
3005	} else {	4191	} else {
3006	LOG llevInfo, "[ABT] $msg\n";	4192	LOG llevInfo, "[ABT] $msg\n";
3007	LOG llevInfo, "[ABT] [suppressed]\n";	4193	LOG llevInfo, "[ABT] [suppressed]\n";
3008	}	4194	}
3009	}	4195	}
3010		4196
3011	# load additional modules	4197	# load additional modules
3012	use cf::pod;	4198	require "cf/$_.pm" for @EXTRA_MODULES;
		4199	cf::_connect_to_perl_2;
3013		4200
3014	END { cf::emergency_save }	4201	END { cf::emergency_save }
3015		4202
3016	1	4203	1
3017		4204

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