ViewVC Help

View File | Revision Log | Show Annotations | Download File

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

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.111 by root, Mon Jan 1 12:28:47 2007 UTC vs.
Revision 1.546 by root, Thu May 6 22:57:49 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 Storable;	29	use Socket;
		30	use EV;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
		35	use Carp ();
12		36
		37	use Guard ();
13	use Coro 3.3;	38	use Coro ();
		39	use Coro::State;
		40	use Coro::Handle;
		41	use Coro::EV;
14	use Coro::Event;	42	use Coro::AnyEvent;
15	use Coro::Timer;	43	use Coro::Timer;
16	use Coro::Signal;	44	use Coro::Signal;
17	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
18	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
		50	use Coro::Storable;
		51	use Coro::Util ();
19		52
20	use Digest::MD5;	53	use JSON::XS 2.01 ();
		54	use BDB ();
		55	use Data::Dumper;
21	use Fcntl;	56	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	57	use YAML::XS ();
		58	use IO::AIO ();
24	use Time::HiRes;	59	use Time::HiRes;
		60	use Compress::LZF;
		61	use Digest::MD5 ();
25		62
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	63	AnyEvent::detect;
27		64
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	65	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	66	#
		67	$Storable::canonical = 1; # reduce rsync transfers
		68	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		69
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	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";
		74	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		75
		76	# strictly for debugging
		77	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		78
33	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;
34		82
35	our %COMMAND = ();	83	our %COMMAND = ();
36	our %COMMAND_TIME = ();	84	our %COMMAND_TIME = ();
		85
		86	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	87	our %EXTCMD = ();
		88	our %EXTICMD = ();
		89	our %EXT_CORO = (); # coroutines bound to extensions
		90	our %EXT_MAP = (); # pluggable maps
38		91
		92	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	93	our @EVENT;
40	our $LIBDIR = datadir . "/ext";	94	our @REFLECT; # set by XS
		95	our %REFLECT; # set by us
41		96
42	our $TICK = MAX_TIME * 1e-6;	97	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	98	our $DATADIR = datadir;
		99	our $LIBDIR = "$DATADIR/ext";
		100	our $PODDIR = "$DATADIR/pod";
		101	our $MAPDIR = "$DATADIR/" . mapdir;
		102	our $LOCALDIR = localdir;
		103	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		104	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		105	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		106	our $RANDOMDIR = "$LOCALDIR/random";
		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;
		118
		119	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		120	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	121	our $NEXT_TICK;
45	our $NOW;	122	our $USE_FSYNC = 1; # use fsync to write maps - default on
		123
		124	our $BDB_DEADLOCK_WATCHER;
		125	our $BDB_CHECKPOINT_WATCHER;
		126	our $BDB_TRICKLE_WATCHER;
		127	our $DB_ENV;
		128
		129	our @EXTRA_MODULES = qw(pod match mapscript incloader);
46		130
47	our %CFG;	131	our %CFG;
48		132
49	our $UPTIME; $UPTIME ||= time;	133	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	134	our $RUNTIME;
		135	our $NOW;
51		136
52	our %MAP; # all maps	137	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	138	our (%MAP, %MAP_LOADING ); # all maps
54	our $FREEZE;	139	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	140
56	our %EXT_CORO;	141	# used to convert map paths into valid unix filenames by replacing / by ∕
		142	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		143
		144	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		145	our $LOADAVG; # same thing, but with alpha-smoothing
		146	our $JITTER; # average jitter
		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 $REALLY_UNLOOP; # never set to true, please :)
57		153
58	binmode STDOUT;	154	binmode STDOUT;
59	binmode STDERR;	155	binmode STDERR;
60		156
61	# read virtual server time, if available	157	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	158	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	159	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	160	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	161	$RUNTIME = <$fh> + 0.;
66	}	162	}
67		163
68	mkdir cf::localdir;	164	eval "sub TICK() { $TICK } 1" or die;
69	mkdir cf::localdir . "/" . cf::playerdir;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		165
74	# a special map that is always available	166	mkdir $_
75	our $LINK_MAP;	167	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
76		168
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	169	our $EMERGENCY_POSITION;
		170
		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::"} };
78		187
79	#############################################################################	188	#############################################################################
80		189
81	=head2 GLOBAL VARIABLES	190	=head2 GLOBAL VARIABLES
82		191
…		…
89	=item $cf::RUNTIME	198	=item $cf::RUNTIME
90		199
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	200	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	201	every server tick.
93		202
94	=item $cf::LIBDIR	203	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		204	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		205	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		206
96	The perl library directory, where extensions and cf-specific modules can	207	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	208	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		209	unique-items directory, player file directory, random maps directory and
		210	database environment.
98		211
99	=item $cf::NOW	212	=item $cf::NOW
100		213
101	The time of the last (current) server tick.	214	The time of the last (current) server tick.
102		215
103	=item $cf::TICK	216	=item $cf::TICK
104		217
105	The interval between server ticks, in seconds.	218	The interval between server ticks, in seconds.
106		219
		220	=item $cf::LOADAVG
		221
		222	The current CPU load on the server (alpha-smoothed), as a value between 0
		223	(none) and 1 (overloaded), indicating how much time is spent on processing
		224	objects per tick. Healthy values are < 0.5.
		225
		226	=item $cf::LOAD
		227
		228	The raw value load value from the last tick.
		229
107	=item %cf::CFG	230	=item %cf::CFG
108		231
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	232	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
110	from wherever your confdir points to.	233	from wherever your confdir points to.
111		234
		235	=item cf::wait_for_tick, cf::wait_for_tick_begin
		236
		237	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		238	returns directly I<after> the tick processing (and consequently, can only wake one thread
		239	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		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
112	=back	258	=back
113		259
114	=cut	260	=cut
115		261
116	BEGIN {	262	sub error(@) { LOG llevError, join "", @_ }
117	*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 {
118	my $msg = join "", @_;	269	my $msg = join "", @_;
119	utf8::encode $msg;
120		270
121	$msg .= "\n"	271	$msg .= "\n"
122	unless $msg =~ /\n$/;	272	unless $msg =~ /\n$/;
123		273
124	LOG llevError, "cfperl: $msg";	274	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
125	};	275
126	}	276	LOG llevWarn, $msg;
		277	};
		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	};
127		292
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	293	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	294	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	295	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	296	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@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';
133	@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)
134		300
135	# 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
136	# within the Safe compartment.	302	# within the Safe compartment.
137	for my $pkg (qw(	303	for my $pkg (qw(
138	cf::global cf::attachable	304	cf::global cf::attachable
139	cf::object cf::object::player	305	cf::object cf::object::player
140	cf::client cf::player	306	cf::client cf::player
141	cf::arch cf::living	307	cf::arch cf::living
		308	cf::map cf::mapspace
142	cf::map cf::party cf::region	309	cf::party cf::region
143	)) {	310	)) {
144	no strict 'refs';
145	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	311	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
146	}	312	}
147		313
148	$Event::DIED = sub {	314	$EV::DIED = sub {
149	warn "error in event callback: @_";	315	Carp::cluck "error in event callback: @_";
150	};	316	};
151		317
152	my %ext_pkg;	318	#############################################################################
153	my @exts;
154	my @hook;
155		319
156	=head2 UTILITY FUNCTIONS	320	=head2 UTILITY FUNCTIONS
157		321
158	=over 4	322	=over 4
159		323
160	=cut	324	=item dumpval $ref
161		325
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	326	=cut
163		327
		328	sub dumpval {
		329	eval {
		330	local $SIG{__DIE__};
		331	my $d;
		332	if (1) {
		333	$d = new Data::Dumper([$_[0]], ["*var"]);
		334	$d->Terse(1);
		335	$d->Indent(2);
		336	$d->Quotekeys(0);
		337	$d->Useqq(1);
		338	#$d->Bless(...);
		339	$d->Seen($_[1]) if @_ > 1;
		340	$d = $d->Dump();
		341	}
		342	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		343	$d
		344	} || "[unable to dump $_[0]: '$@']";
		345	}
		346
164	=item $ref = cf::from_json $json	347	=item $ref = cf::decode_json $json
165		348
166	Converts a JSON string into the corresponding perl data structure.	349	Converts a JSON string into the corresponding perl data structure.
167		350
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	351	=item $json = cf::encode_json $ref
176		352
177	Converts a perl data structure into its JSON representation.	353	Converts a perl data structure into its JSON representation.
178		354
179	=cut	355	=cut
180		356
181	sub to_json($) {	357	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	358
183	JSON::Syck::Dump $_[0]	359	sub encode_json($) { $json_coder->encode ($_[0]) }
		360	sub decode_json($) { $json_coder->decode ($_[0]) }
		361
		362	=item cf::post_init { BLOCK }
		363
		364	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		365	but I<before> the server starts ticking again.
		366
		367	The cdoeblock will have a single boolean argument to indicate whether this
		368	is a reload or not.
		369
		370	=cut
		371
		372	sub post_init(&) {
		373	push @POST_INIT, shift;
184	}	374	}
		375
		376	=item cf::lock_wait $string
		377
		378	Wait until the given lock is available. See cf::lock_acquire.
		379
		380	=item my $lock = cf::lock_acquire $string
		381
		382	Wait until the given lock is available and then acquires it and returns
		383	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
		384	for example when the coroutine gets canceled), the lock is automatically
		385	returned.
		386
		387	Locks are *not* recursive, locking from the same coro twice results in a
		388	deadlocked coro.
		389
		390	Lock names should begin with a unique identifier (for example, cf::map::find
		391	uses map_find and cf::map::load uses map_load).
		392
		393	=item $locked = cf::lock_active $string
		394
		395	Return true if the lock is currently active, i.e. somebody has locked it.
		396
		397	=cut
		398
		399	our $LOCKS = new Coro::SemaphoreSet;
		400
		401	sub lock_wait($) {
		402	$LOCKS->wait ($_[0]);
		403	}
		404
		405	sub lock_acquire($) {
		406	$LOCKS->guard ($_[0])
		407	}
		408
		409	sub lock_active($) {
		410	$LOCKS->count ($_[0]) < 1
		411	}
		412
		413	sub freeze_mainloop {
		414	tick_inhibit_inc;
		415
		416	&Guard::guard (\&tick_inhibit_dec);
		417	}
		418
		419	=item cf::periodic $interval, $cb
		420
		421	Like EV::periodic, but randomly selects a starting point so that the actions
		422	get spread over time.
		423
		424	=cut
		425
		426	sub periodic($$) {
		427	my ($interval, $cb) = @_;
		428
		429	my $start = rand List::Util::min 180, $interval;
		430
		431	EV::periodic $start, $interval, 0, $cb
		432	}
		433
		434	=item cf::get_slot $time[, $priority[, $name]]
		435
		436	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		437	This call blocks and returns only when you have at least C<$time> seconds
		438	of cpu time till the next tick. The slot is only valid till the next cede.
		439
		440	The optional C<$name> can be used to identify the job to run. It might be
		441	used for statistical purposes and should identify the same time-class.
		442
		443	Useful for short background jobs.
		444
		445	=cut
		446
		447	our @SLOT_QUEUE;
		448	our $SLOT_QUEUE;
		449	our $SLOT_DECAY = 0.9;
		450
		451	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		452	$SLOT_QUEUE = Coro::async {
		453	$Coro::current->desc ("timeslot manager");
		454
		455	my $signal = new Coro::Signal;
		456	my $busy;
		457
		458	while () {
		459	next_job:
		460
		461	my $avail = cf::till_tick;
		462
		463	for (0 .. $#SLOT_QUEUE) {
		464	if ($SLOT_QUEUE[$_][0] <= $avail) {
		465	$busy = 0;
		466	my $job = splice @SLOT_QUEUE, $_, 1, ();
		467	$job->[2]->send;
		468	Coro::cede;
		469	goto next_job;
		470	} else {
		471	$SLOT_QUEUE[$_][0] *= $SLOT_DECAY;
		472	}
		473	}
		474
		475	if (@SLOT_QUEUE) {
		476	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		477	push @cf::WAIT_FOR_TICK, $signal;
		478	$signal->wait;
		479	} else {
		480	$busy = 0;
		481	Coro::schedule;
		482	}
		483	}
		484	};
		485
		486	sub get_slot($;$$) {
		487	return if tick_inhibit || $Coro::current == $Coro::main;
		488
		489	my ($time, $pri, $name) = @_;
		490
		491	$time = clamp $time, 0.01, $TICK * .6;
		492
		493	my $sig = new Coro::Signal;
		494
		495	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		496	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		497	$SLOT_QUEUE->ready;
		498	$sig->wait;
		499	}
		500
		501	=item cf::async { BLOCK }
		502
		503	Currently the same as Coro::async_pool, meaning you cannot use
		504	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		505	thing you are allowed to do is call C<prio> on it.
		506
		507	=cut
		508
		509	BEGIN { *async = \&Coro::async_pool }
185		510
186	=item cf::sync_job { BLOCK }	511	=item cf::sync_job { BLOCK }
187		512
188	The design of crossfire+ requires that the main coro ($Coro::main) is	513	The design of Deliantra requires that the main coroutine ($Coro::main)
189	always able to handle events or runnable, as crossfire+ is only partly	514	is always able to handle events or runnable, as Deliantra is only
190	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	515	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		516	acceptable.
191		517
192	If it must be done, put the blocking parts into C<sync_job>. This will run	518	If it must be done, put the blocking parts into C<sync_job>. This will run
193	the given BLOCK in another coroutine while waiting for the result. The	519	the given BLOCK in another coroutine while waiting for the result. The
194	server will be frozen during this time, so the block should either finish	520	server will be frozen during this time, so the block should either finish
195	fast or be very important.	521	fast or be very important.
…		…
197	=cut	523	=cut
198		524
199	sub sync_job(&) {	525	sub sync_job(&) {
200	my ($job) = @_;	526	my ($job) = @_;
201		527
		528	if (in_main) {
		529	my $time = AE::time;
		530
		531	# this is the main coro, too bad, we have to block
		532	# till the operation succeeds, freezing the server :/
		533
		534	#LOG llevError, Carp::longmess "sync job";#d#
		535
		536	my $freeze_guard = freeze_mainloop;
		537
202	my $busy = 1;	538	my $busy = 1;
203	my @res;	539	my @res;
204		540
205	my $coro = Coro::async {	541	(async {
		542	$Coro::current->desc ("sync job coro");
206	@res = eval { $job->() };	543	@res = eval { $job->() };
207	warn $@ if $@;	544	error $@ if $@;
208	undef $busy;	545	undef $busy;
209	};
210
211	if ($Coro::current == $Coro::main) {
212	# TODO: use suspend/resume instead
213	local $FREEZE = 1;
214	$coro->prio (Coro::PRIO_MAX);	546	})->prio (Coro::PRIO_MAX);
		547
215	while ($busy) {	548	while ($busy) {
		549	if (Coro::nready) {
216	Coro::cede_notself;	550	Coro::cede_notself;
217	Event::one_event unless Coro::nready;	551	} else {
		552	EV::loop EV::LOOP_ONESHOT;
218	}	553	}
		554	}
		555
		556	my $time = AE::time - $time;
		557
		558	$TICK_START += $time; # do not account sync jobs to server load
		559
		560	wantarray ? @res : $res[0]
219	} else {	561	} else {
220	$coro->join;	562	# we are in another coroutine, how wonderful, everything just works
		563
		564	$job->()
221	}	565	}
222
223	wantarray ? @res : $res[0]
224	}	566	}
225		567
226	=item $coro = cf::coro { BLOCK }	568	=item $coro = cf::async_ext { BLOCK }
227		569
228	Creates and returns a new coro. This coro is automcatially being canceled	570	Like async, but this coro is automatically being canceled when the
229	when the extension calling this is being unloaded.	571	extension calling this is being unloaded.
230		572
231	=cut	573	=cut
232		574
233	sub coro(&) {	575	sub async_ext(&) {
234	my $cb = shift;	576	my $cb = shift;
235		577
236	my $coro; $coro = async {	578	my $coro = &Coro::async ($cb);
237	eval {
238	$cb->();
239	};
240	warn $@ if $@;
241	};
242		579
243	$coro->on_destroy (sub {	580	$coro->on_destroy (sub {
244	delete $EXT_CORO{$coro+0};	581	delete $EXT_CORO{$coro+0};
245	});	582	});
246	$EXT_CORO{$coro+0} = $coro;	583	$EXT_CORO{$coro+0} = $coro;
247		584
248	$coro	585	$coro
249	}	586	}
250		587
251	sub write_runtime {	588	=item fork_call { }, $args
252	my $runtime = cf::localdir . "/runtime";
253		589
254	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	590	Executes the given code block with the given arguments in a seperate
255	or return;	591	process, returning the results. Everything must be serialisable with
		592	Coro::Storable. May, of course, block. Note that the executed sub may
		593	never block itself or use any form of event handling.
256		594
257	my $value = $cf::RUNTIME;	595	=cut
258	(aio_write $fh, 0, (length $value), $value, 0) <= 0
259	and return;
260		596
261	aio_fsync $fh	597	sub fork_call(&@) {
262	and return;	598	my ($cb, @args) = @_;
263		599
264	close $fh	600	# we seemingly have to make a local copy of the whole thing,
265	or return;	601	# otherwise perl prematurely frees the stuff :/
		602	# TODO: investigate and fix (likely this will be rather laborious)
266		603
267	aio_rename "$runtime~", $runtime	604	my @res = Coro::Util::fork_eval {
268	and return;	605	reset_signals;
		606	&$cb
		607	}, @args;
269		608
		609	wantarray ? @res : $res[-1]
		610	}
		611
		612	sub objinfo {
270	1	613	(
		614	"counter value" => cf::object::object_count,
		615	"objects created" => cf::object::create_count,
		616	"objects destroyed" => cf::object::destroy_count,
		617	"freelist size" => cf::object::free_count,
		618	"allocated objects" => cf::object::objects_size,
		619	"active objects" => cf::object::actives_size,
		620	)
		621	}
		622
		623	=item $coin = coin_from_name $name
		624
		625	=cut
		626
		627	our %coin_alias = (
		628	"silver" => "silvercoin",
		629	"silvercoin" => "silvercoin",
		630	"silvercoins" => "silvercoin",
		631	"gold" => "goldcoin",
		632	"goldcoin" => "goldcoin",
		633	"goldcoins" => "goldcoin",
		634	"platinum" => "platinacoin",
		635	"platinumcoin" => "platinacoin",
		636	"platinumcoins" => "platinacoin",
		637	"platina" => "platinacoin",
		638	"platinacoin" => "platinacoin",
		639	"platinacoins" => "platinacoin",
		640	"royalty" => "royalty",
		641	"royalties" => "royalty",
		642	);
		643
		644	sub coin_from_name($) {
		645	$coin_alias{$_[0]}
		646	? cf::arch::find $coin_alias{$_[0]}
		647	: undef
		648	}
		649
		650	=item $value = cf::db_get $family => $key
		651
		652	Returns a single value from the environment database.
		653
		654	=item cf::db_put $family => $key => $value
		655
		656	Stores the given C<$value> in the family. It can currently store binary
		657	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		658
		659	=item $db = cf::db_table "name"
		660
		661	Create and/or open a new database table. The string must not be "db" and must be unique
		662	within each server.
		663
		664	=cut
		665
		666	sub db_table($) {
		667	cf::error "db_get called from main context"
		668	if $Coro::current == $Coro::main;
		669
		670	my ($name) = @_;
		671	my $db = BDB::db_create $DB_ENV;
		672
		673	eval {
		674	$db->set_flags (BDB::CHKSUM);
		675
		676	utf8::encode $name;
		677	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		678	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		679	cf::cleanup "db_open(db): $!" if $!;
		680	};
		681	cf::cleanup "db_open(db): $@" if $@;
		682
		683	$db
		684	}
		685
		686	our $DB;
		687
		688	sub db_init {
		689	$DB ||= db_table "db";
		690	}
		691
		692	sub db_get($$) {
		693	my $key = "$_[0]/$_[1]";
		694
		695	cf::error "db_get called from main context"
		696	if $Coro::current == $Coro::main;
		697
		698	BDB::db_get $DB, undef, $key, my $data;
		699
		700	$! ? ()
		701	: $data
		702	}
		703
		704	sub db_put($$$) {
		705	BDB::dbreq_pri 4;
		706	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		707	}
		708
		709	=item cf::cache $id => [$paths...], $processversion => $process
		710
		711	Generic caching function that returns the value of the resource $id,
		712	caching and regenerating as required.
		713
		714	This function can block.
		715
		716	=cut
		717
		718	sub cache {
		719	my ($id, $src, $processversion, $process) = @_;
		720
		721	my $meta =
		722	join "\x00",
		723	$processversion,
		724	map {
		725	aio_stat $_
		726	and Carp::croak "$_: $!";
		727
		728	($_, (stat _)[7,9])
		729	} @$src;
		730
		731	my $dbmeta = db_get cache => "$id/meta";
		732	if ($dbmeta ne $meta) {
		733	# changed, we may need to process
		734
		735	my @data;
		736	my $md5;
		737
		738	for (0 .. $#$src) {
		739	0 <= aio_load $src->[$_], $data[$_]
		740	or Carp::croak "$src->[$_]: $!";
		741	}
		742
		743	# if processing is expensive, check
		744	# checksum first
		745	if (1) {
		746	$md5 =
		747	join "\x00",
		748	$processversion,
		749	map {
		750	cf::cede_to_tick;
		751	($src->[$_], Digest::MD5::md5_hex $data[$_])
		752	} 0.. $#$src;
		753
		754
		755	my $dbmd5 = db_get cache => "$id/md5";
		756	if ($dbmd5 eq $md5) {
		757	db_put cache => "$id/meta", $meta;
		758
		759	return db_get cache => "$id/data";
		760	}
		761	}
		762
		763	my $t1 = Time::HiRes::time;
		764	my $data = $process->(\@data);
		765	my $t2 = Time::HiRes::time;
		766
		767	info "cache: '$id' processed in ", $t2 - $t1, "s\n";
		768
		769	db_put cache => "$id/data", $data;
		770	db_put cache => "$id/md5" , $md5;
		771	db_put cache => "$id/meta", $meta;
		772
		773	return $data;
		774	}
		775
		776	db_get cache => "$id/data"
		777	}
		778
		779	=item cf::datalog type => key => value, ...
		780
		781	Log a datalog packet of the given type with the given key-value pairs.
		782
		783	=cut
		784
		785	sub datalog($@) {
		786	my ($type, %kv) = @_;
		787	info "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
271	}	788	}
272		789
273	=back	790	=back
274		791
275	=cut	792	=cut
276		793
277	#############################################################################	794	#############################################################################
278		795
279	package cf::path;
280
281	sub new {
282	my ($class, $path, $base) = @_;
283
284	$path = $path->as_string if ref $path;
285
286	my $self = bless { }, $class;
287
288	if ($path =~ s{^\?random/}{}) {
289	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
290	$self->{random} = cf::from_json $data;
291	} else {
292	if ($path =~ s{^~([^/]+)?}{}) {
293	$self->{user_rel} = 1;
294
295	if (defined $1) {
296	$self->{user} = $1;
297	} elsif ($base =~ m{^~([^/]+)/}) {
298	$self->{user} = $1;
299	} else {
300	warn "cannot resolve user-relative path without user <$path,$base>\n";
301	}
302	} elsif ($path =~ /^\//) {
303	# already absolute
304	} else {
305	$base =~ s{[^/]+/?$}{};
306	return $class->new ("$base/$path");
307	}
308
309	for ($path) {
310	redo if s{/\.?/}{/};
311	redo if s{/[^/]+/\.\./}{/};
312	}
313	}
314
315	$self->{path} = $path;
316
317	$self
318	}
319
320	# the name / primary key / in-game path
321	sub as_string {
322	my ($self) = @_;
323
324	$self->{user_rel} ? "~$self->{user}$self->{path}"
325	: $self->{random} ? "?random/$self->{path}"
326	: $self->{path}
327	}
328
329	# the displayed name, this is a one way mapping
330	sub visible_name {
331	my ($self) = @_;
332
333	# if (my $rmp = $self->{random}) {
334	# # todo: be more intelligent about this
335	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
336	# } else {
337	$self->as_string
338	# }
339	}
340
341	# escape the /'s in the path
342	sub _escaped_path {
343	# ∕ is U+2215
344	(my $path = $_[0]{path}) =~ s/\//∕/g;
345	$path
346	}
347
348	# the original (read-only) location
349	sub load_path {
350	my ($self) = @_;
351
352	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
353	}
354
355	# the temporary/swap location
356	sub save_path {
357	my ($self) = @_;
358
359	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
360	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
361	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
362	}
363
364	# the unique path, might be eq to save_path
365	sub uniq_path {
366	my ($self) = @_;
367
368	$self->{user_rel} || $self->{random}
369	? undef
370	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
371	}
372
373	# return random map parameters, or undef
374	sub random_map_params {
375	my ($self) = @_;
376
377	$self->{random}
378	}
379
380	# this is somewhat ugly, but style maps do need special treatment
381	sub is_style_map {
382	$_[0]{path} =~ m{^/styles/}
383	}
384
385	package cf;
386
387	#############################################################################
388
389	=head2 ATTACHABLE OBJECTS	796	=head2 ATTACHABLE OBJECTS
390		797
391	Many objects in crossfire are so-called attachable objects. That means you can	798	Many objects in deliantra are so-called attachable objects. That means you can
392	attach callbacks/event handlers (a collection of which is called an "attachment")	799	attach callbacks/event handlers (a collection of which is called an "attachment")
393	to it. All such attachable objects support the following methods.	800	to it. All such attachable objects support the following methods.
394		801
395	In the following description, CLASS can be any of C<global>, C<object>	802	In the following description, CLASS can be any of C<global>, C<object>
396	C<player>, C<client> or C<map> (i.e. the attachable objects in	803	C<player>, C<client> or C<map> (i.e. the attachable objects in
397	crossfire+).	804	Deliantra).
398		805
399	=over 4	806	=over 4
400		807
401	=item $attachable->attach ($attachment, key => $value...)	808	=item $attachable->attach ($attachment, key => $value...)
402		809
…		…
446	=item cf::CLASS::attachment $name, ...	853	=item cf::CLASS::attachment $name, ...
447		854
448	Register an attachment by C<$name> through which attachable objects of the	855	Register an attachment by C<$name> through which attachable objects of the
449	given CLASS can refer to this attachment.	856	given CLASS can refer to this attachment.
450		857
451	Some classes such as crossfire maps and objects can specify attachments	858	Some classes such as deliantra maps and objects can specify attachments
452	that are attached at load/instantiate time, thus the need for a name.	859	that are attached at load/instantiate time, thus the need for a name.
453		860
454	These calls expect any number of the following handler/hook descriptions:	861	These calls expect any number of the following handler/hook descriptions:
455		862
456	=over 4	863	=over 4
…		…
516	our @CB_TYPE = (); # registry for type (cf-object class) based events	923	our @CB_TYPE = (); # registry for type (cf-object class) based events
517	our @CB_MAP = ();	924	our @CB_MAP = ();
518		925
519	my %attachment;	926	my %attachment;
520		927
		928	sub cf::attachable::thawer_merge {
		929	# simply override everything except _meta
		930	local $_[0]{_meta};
		931	%{$_[0]} = %{$_[1]};
		932	}
		933
521	sub _attach_cb($$$$) {	934	sub _attach_cb($$$$) {
522	my ($registry, $event, $prio, $cb) = @_;	935	my ($registry, $event, $prio, $cb) = @_;
523		936
524	use sort 'stable';	937	use sort 'stable';
525		938
…		…
559	$registry = $CB_TYPE[$object_type] ||= [];	972	$registry = $CB_TYPE[$object_type] ||= [];
560		973
561	} elsif ($type eq "subtype") {	974	} elsif ($type eq "subtype") {
562	defined $object_type or Carp::croak "subtype specified without type";	975	defined $object_type or Carp::croak "subtype specified without type";
563	my $object_subtype = shift @arg;	976	my $object_subtype = shift @arg;
564	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	977	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
565		978
566	} elsif ($type eq "package") {	979	} elsif ($type eq "package") {
567	my $pkg = shift @arg;	980	my $pkg = shift @arg;
568		981
569	while (my ($name, $id) = each %cb_id) {	982	while (my ($name, $id) = each %cb_id) {
…		…
574		987
575	} elsif (exists $cb_id{$type}) {	988	} elsif (exists $cb_id{$type}) {
576	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;	989	_attach_cb $registry, $cb_id{$type}, $prio, shift @arg;
577		990
578	} elsif (ref $type) {	991	} elsif (ref $type) {
579	warn "attaching objects not supported, ignoring.\n";	992	error "attaching objects not supported, ignoring.\n";
580		993
581	} else {	994	} else {
582	shift @arg;	995	shift @arg;
583	warn "attach argument '$type' not supported, ignoring.\n";	996	error "attach argument '$type' not supported, ignoring.\n";
584	}	997	}
585	}	998	}
586	}	999	}
587		1000
588	sub _object_attach {	1001	sub _object_attach {
…		…
598	_attach $registry, $klass, @attach;	1011	_attach $registry, $klass, @attach;
599	}	1012	}
600		1013
601	$obj->{$name} = \%arg;	1014	$obj->{$name} = \%arg;
602	} else {	1015	} else {
603	warn "object uses attachment '$name' that is not available, postponing.\n";	1016	info "object uses attachment '$name' which is not available, postponing.\n";
604	}	1017	}
605		1018
606	$obj->{_attachment}{$name} = undef;	1019	$obj->{_attachment}{$name} = undef;
607	}	1020	}
608		1021
…		…
610	if (ref $_[0]) {	1023	if (ref $_[0]) {
611	_object_attach @_;	1024	_object_attach @_;
612	} else {	1025	} else {
613	_attach shift->_attach_registry, @_;	1026	_attach shift->_attach_registry, @_;
614	}	1027	}
		1028	_recalc_want;
615	};	1029	};
616		1030
617	# all those should be optimised	1031	# all those should be optimised
618	sub cf::attachable::detach {	1032	sub cf::attachable::detach {
619	my ($obj, $name) = @_;	1033	my ($obj, $name) = @_;
…		…
622	delete $obj->{_attachment}{$name};	1036	delete $obj->{_attachment}{$name};
623	reattach ($obj);	1037	reattach ($obj);
624	} else {	1038	} else {
625	Carp::croak "cannot, currently, detach class attachments";	1039	Carp::croak "cannot, currently, detach class attachments";
626	}	1040	}
		1041	_recalc_want;
627	};	1042	};
628		1043
629	sub cf::attachable::attached {	1044	sub cf::attachable::attached {
630	my ($obj, $name) = @_;	1045	my ($obj, $name) = @_;
631		1046
…		…
646	";	1061	";
647	die if $@;	1062	die if $@;
648	}	1063	}
649		1064
650	our $override;	1065	our $override;
651	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1066	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
652		1067
653	sub override {	1068	sub override {
654	$override = 1;	1069	$override = 1;
655	@invoke_results = ();	1070	@INVOKE_RESULTS = (@_);
656	}	1071	}
657		1072
658	sub do_invoke {	1073	sub do_invoke {
659	my $event = shift;	1074	my $event = shift;
660	my $callbacks = shift;	1075	my $callbacks = shift;
661		1076
662	@invoke_results = ();	1077	@INVOKE_RESULTS = ();
663		1078
664	local $override;	1079	local $override;
665		1080
666	for (@$callbacks) {	1081	for (@$callbacks) {
667	eval { &{$_->[1]} };	1082	eval { &{$_->[1]} };
668		1083
669	if ($@) {	1084	if ($@) {
670	warn "$@";
671	warn "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";	1085	error "$@", "... while processing $EVENT[$event][0](@_) event, skipping processing altogether.\n";
672	override;	1086	override;
673	}	1087	}
674		1088
675	return 1 if $override;	1089	return 1 if $override;
676	}	1090	}
677		1091
678	0	1092	0
679	}	1093	}
680		1094
681	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1095	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
682		1096
683	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1097	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
684		1098
685	Generate an object-specific event with the given arguments.	1099	Generate an object-specific event with the given arguments.
686		1100
687	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1101	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
688	removed in future versions), and there is no public API to access override	1102	removed in future versions), and there is no public API to access override
689	results (if you must, access C<@cf::invoke_results> directly).	1103	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
690		1104
691	=back	1105	=back
692		1106
693	=cut	1107	=cut
694		1108
695	#############################################################################	1109	#############################################################################
696	# object support	1110	# object support
		1111
		1112	sub _object_equal($$);
		1113	sub _object_equal($$) {
		1114	my ($a, $b) = @_;
		1115
		1116	return 0 unless (ref $a) eq (ref $b);
		1117
		1118	if ("HASH" eq ref $a) {
		1119	my @ka = keys %$a;
		1120	my @kb = keys %$b;
		1121
		1122	return 0 if @ka != @kb;
		1123
		1124	for (0 .. $#ka) {
		1125	return 0 unless $ka[$_] eq $kb[$_];
		1126	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1127	}
		1128
		1129	} elsif ("ARRAY" eq ref $a) {
		1130
		1131	return 0 if @$a != @$b;
		1132
		1133	for (0 .. $#$a) {
		1134	return 0 unless _object_equal $a->[$_], $b->[$_];
		1135	}
		1136
		1137	} elsif ($a ne $b) {
		1138	return 0;
		1139	}
		1140
		1141	1
		1142	}
		1143
		1144	our $SLOW_MERGES;#d#
		1145	sub _can_merge {
		1146	my ($ob1, $ob2) = @_;
		1147
		1148	++$SLOW_MERGES;#d#
		1149
		1150	# we do the slow way here
		1151	return _object_equal $ob1, $ob2
		1152	}
697		1153
698	sub reattach {	1154	sub reattach {
699	# basically do the same as instantiate, without calling instantiate	1155	# basically do the same as instantiate, without calling instantiate
700	my ($obj) = @_;	1156	my ($obj) = @_;
		1157
		1158	# no longer needed after getting rid of delete_package?
		1159	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
701		1160
702	my $registry = $obj->registry;	1161	my $registry = $obj->registry;
703		1162
704	@$registry = ();	1163	@$registry = ();
705		1164
…		…
710	for (@$attach) {	1169	for (@$attach) {
711	my ($klass, @attach) = @$_;	1170	my ($klass, @attach) = @$_;
712	_attach $registry, $klass, @attach;	1171	_attach $registry, $klass, @attach;
713	}	1172	}
714	} else {	1173	} else {
715	warn "object uses attachment '$name' that is not available, postponing.\n";	1174	info "object uses attachment '$name' that is not available, postponing.\n";
716	}	1175	}
717	}	1176	}
718	}	1177	}
719		1178
720	cf::attachable->attach (	1179	cf::attachable->attach (
721	prio => -1000000,	1180	prio => -1000000,
722	on_instantiate => sub {	1181	on_instantiate => sub {
723	my ($obj, $data) = @_;	1182	my ($obj, $data) = @_;
724		1183
725	$data = from_json $data;	1184	$data = decode_json $data;
726		1185
727	for (@$data) {	1186	for (@$data) {
728	my ($name, $args) = @$_;	1187	my ($name, $args) = @$_;
729		1188
730	$obj->attach ($name, %{$args || {} });	1189	$obj->attach ($name, %{$args || {} });
…		…
746	sub object_freezer_save {	1205	sub object_freezer_save {
747	my ($filename, $rdata, $objs) = @_;	1206	my ($filename, $rdata, $objs) = @_;
748		1207
749	sync_job {	1208	sync_job {
750	if (length $$rdata) {	1209	if (length $$rdata) {
		1210	utf8::decode (my $decname = $filename);
751	warn sprintf "saving %s (%d,%d)\n",	1211	trace sprintf "saving %s (%d,%d)\n",
752	$filename, length $$rdata, scalar @$objs;	1212	$decname, length $$rdata, scalar @$objs
		1213	if $VERBOSE_IO;
753		1214
754	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1215	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
755	chmod SAVE_MODE, $fh;	1216	aio_chmod $fh, SAVE_MODE;
756	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1217	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1218	if ($cf::USE_FSYNC) {
		1219	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;
757	aio_fsync $fh;	1220	aio_fsync $fh;
		1221	}
758	close $fh;	1222	aio_close $fh;
759		1223
760	if (@$objs) {	1224	if (@$objs) {
761	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1225	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
762	chmod SAVE_MODE, $fh;	1226	aio_chmod $fh, SAVE_MODE;
763	my $data = Storable::nfreeze { version => 1, objs => $objs };	1227	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
764	aio_write $fh, 0, (length $data), $data, 0;	1228	aio_write $fh, 0, (length $data), $data, 0;
		1229	if ($cf::USE_FSYNC) {
		1230	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;
765	aio_fsync $fh;	1231	aio_fsync $fh;
		1232	}
766	close $fh;	1233	aio_close $fh;
767	aio_rename "$filename.pst~", "$filename.pst";	1234	aio_rename "$filename.pst~", "$filename.pst";
768	}	1235	}
769	} else {	1236	} else {
770	aio_unlink "$filename.pst";	1237	aio_unlink "$filename.pst";
771	}	1238	}
772		1239
773	aio_rename "$filename~", $filename;	1240	aio_rename "$filename~", $filename;
		1241
		1242	$filename =~ s%/[^/]+$%%;
		1243	aio_pathsync $filename if $cf::USE_FSYNC;
774	} else {	1244	} else {
775	warn "FATAL: $filename~: $!\n";	1245	error "unable to save objects: $filename~: $!\n";
776	}	1246	}
777	} else {	1247	} else {
778	aio_unlink $filename;	1248	aio_unlink $filename;
779	aio_unlink "$filename.pst";	1249	aio_unlink "$filename.pst";
780	}	1250	}
781	}	1251	};
782	}	1252	}
783		1253
784	sub object_freezer_as_string {	1254	sub object_freezer_as_string {
785	my ($rdata, $objs) = @_;	1255	my ($rdata, $objs) = @_;
786		1256
…		…
798	or return;	1268	or return;
799		1269
800	unless (aio_stat "$filename.pst") {	1270	unless (aio_stat "$filename.pst") {
801	(aio_load "$filename.pst", $av) >= 0	1271	(aio_load "$filename.pst", $av) >= 0
802	or return;	1272	or return;
		1273
803	$av = eval { (Storable::thaw <$av>)->{objs} };	1274	my $st = eval { Coro::Storable::thaw $av };
		1275	$av = $st->{objs};
804	}	1276	}
805		1277
		1278	utf8::decode (my $decname = $filename);
		1279	trace sprintf "loading %s (%d,%d)\n",
		1280	$decname, length $data, scalar @{$av || []}
		1281	if $VERBOSE_IO;
		1282
806	return ($data, $av);	1283	($data, $av)
807	}	1284	}
		1285
		1286	=head2 COMMAND CALLBACKS
		1287
		1288	=over 4
		1289
		1290	=cut
808		1291
809	#############################################################################	1292	#############################################################################
810	# command handling &c	1293	# command handling &c
811		1294
812	=item cf::register_command $name => \&callback($ob,$args);	1295	=item cf::register_command $name => \&callback($ob,$args);
…		…
825	push @{ $COMMAND{$name} }, [$caller, $cb];	1308	push @{ $COMMAND{$name} }, [$caller, $cb];
826	}	1309	}
827		1310
828	=item cf::register_extcmd $name => \&callback($pl,$packet);	1311	=item cf::register_extcmd $name => \&callback($pl,$packet);
829		1312
830	Register a callbackf ro execution when the client sends an extcmd packet.	1313	Register a callback for execution when the client sends an (synchronous)
		1314	extcmd packet. Ext commands will be processed in the order they are
		1315	received by the server, like other user commands. The first argument is
		1316	the logged-in player. Ext commands can only be processed after a player
		1317	has logged in successfully.
831		1318
832	If the callback returns something, it is sent back as if reply was being	1319	If the callback returns something, it is sent back as if reply was being
833	called.	1320	called.
834		1321
		1322	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1323
		1324	Register a callback for execution when the client sends an (asynchronous)
		1325	exticmd packet. Exti commands are processed by the server as soon as they
		1326	are received, i.e. out of order w.r.t. other commands. The first argument
		1327	is a client socket. Exti commands can be received anytime, even before
		1328	log-in.
		1329
		1330	If the callback returns something, it is sent back as if reply was being
		1331	called.
		1332
835	=cut	1333	=cut
836		1334
837	sub register_extcmd {	1335	sub register_extcmd {
838	my ($name, $cb) = @_;	1336	my ($name, $cb) = @_;
839		1337
840	my $caller = caller;
841	#warn "registering extcmd '$name' to '$caller'";
842
843	$EXTCMD{$name} = [$cb, $caller];	1338	$EXTCMD{$name} = $cb;
844	}	1339	}
		1340
		1341	sub register_exticmd {
		1342	my ($name, $cb) = @_;
		1343
		1344	$EXTICMD{$name} = $cb;
		1345	}
		1346
		1347	use File::Glob ();
845		1348
846	cf::player->attach (	1349	cf::player->attach (
847	on_command => sub {	1350	on_unknown_command => sub {
848	my ($pl, $name, $params) = @_;	1351	my ($pl, $name, $params) = @_;
849		1352
850	my $cb = $COMMAND{$name}	1353	my $cb = $COMMAND{$name}
851	or return;	1354	or return;
852		1355
…		…
857	cf::override;	1360	cf::override;
858	},	1361	},
859	on_extcmd => sub {	1362	on_extcmd => sub {
860	my ($pl, $buf) = @_;	1363	my ($pl, $buf) = @_;
861		1364
862	my $msg = eval { from_json $buf };	1365	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
863		1366
864	if (ref $msg) {	1367	if (ref $msg) {
		1368	my ($type, $reply, @payload) =
		1369	"ARRAY" eq ref $msg
		1370	? @$msg
		1371	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1372
		1373	my @reply;
		1374
865	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1375	if (my $cb = $EXTCMD{$type}) {
866	if (my %reply = $cb->[0]->($pl, $msg)) {	1376	@reply = $cb->($pl, @payload);
867	$pl->ext_reply ($msg->{msgid}, %reply);
868	}
869	}	1377	}
		1378
		1379	$pl->ext_reply ($reply, @reply)
		1380	if $reply;
		1381
870	} else {	1382	} else {
871	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1383	error "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
872	}	1384	}
873		1385
874	cf::override;	1386	cf::override;
875	},	1387	},
876	);	1388	);
877		1389
878	sub register {	1390	# "readahead" all extensions
879	my ($base, $pkg) = @_;
880
881	#TODO
882	}
883
884	sub load_extension {	1391	sub cache_extensions {
885	my ($path) = @_;	1392	my $grp = IO::AIO::aio_group;
886		1393
887	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1394	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
888	my $base = $1;	1395	for (grep /\.ext$/, @{$_[0]}) {
889	my $pkg = $1;	1396	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
890	$pkg =~ s/[^[:word:]]/_/g;
891	$pkg = "ext::$pkg";
892
893	warn "loading '$path' into '$pkg'\n";
894
895	open my $fh, "<:utf8", $path
896	or die "$path: $!";
897
898	my $source =
899	"package $pkg; use strict; use utf8;\n"
900	. "#line 1 \"$path\"\n{\n"
901	. (do { local $/; <$fh> })
902	. "\n};\n1";
903
904	eval $source
905	or die $@ ? "$path: $@\n"
906	: "extension disabled.\n";
907
908	push @exts, $pkg;
909	$ext_pkg{$base} = $pkg;
910
911	# no strict 'refs';
912	# @{"$pkg\::ISA"} = ext::;
913
914	register $base, $pkg;
915	}
916
917	sub unload_extension {
918	my ($pkg) = @_;
919
920	warn "removing extension $pkg\n";
921
922	# remove hooks
923	#TODO
924	# for my $idx (0 .. $#PLUGIN_EVENT) {
925	# delete $hook[$idx]{$pkg};
926	# }
927
928	# remove commands
929	for my $name (keys %COMMAND) {
930	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
931
932	if (@cb) {
933	$COMMAND{$name} = \@cb;
934	} else {
935	delete $COMMAND{$name};
936	}	1397	}
937	}	1398	};
938		1399
939	# remove extcmds	1400	$grp
940	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
941	delete $EXTCMD{$name};
942	}
943
944	if (my $cb = $pkg->can ("unload")) {
945	eval {
946	$cb->($pkg);
947	1
948	} or warn "$pkg unloaded, but with errors: $@";
949	}
950
951	Symbol::delete_package $pkg;
952	}	1401	}
953		1402
954	sub load_extensions {	1403	sub load_extensions {
		1404	info "loading extensions...";
		1405
		1406	cf::sync_job {
		1407	my %todo;
		1408
955	for my $ext (<$LIBDIR/*.ext>) {	1409	for my $path (<$LIBDIR/*.ext>) {
956	next unless -r $ext;	1410	next unless -r $path;
957	eval {	1411
958	load_extension $ext;	1412	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1413	my $base = $1;
		1414	my $pkg = $1;
		1415	$pkg =~ s/[^[:word:]]/_/g;
		1416	$pkg = "ext::$pkg";
		1417
		1418	open my $fh, "<:utf8", $path
		1419	or die "$path: $!";
		1420
		1421	my $source = do { local $/; <$fh> };
		1422
		1423	my %ext = (
		1424	path => $path,
		1425	base => $base,
		1426	pkg => $pkg,
		1427	);
		1428
		1429	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1430	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1431
		1432	$ext{source} =
		1433	"package $pkg; use common::sense;\n"
		1434	. "#line 1 \"$path\"\n{\n"
		1435	. $source
		1436	. "\n};\n1";
		1437
		1438	$todo{$base} = \%ext;
		1439	}
		1440
		1441	my $pass = 0;
		1442	my %done;
		1443	while (%todo) {
		1444	my $progress;
		1445
		1446	++$pass;
		1447
		1448	ext:
		1449	while (my ($k, $v) = each %todo) {
		1450	for (split /,\s*/, $v->{meta}{depends}) {
		1451	next ext
		1452	unless exists $done{$_};
		1453	}
		1454
		1455	trace "... pass $pass, loading '$k' into '$v->{pkg}'\n";
		1456
		1457	my $active = eval $v->{source};
		1458
		1459	if (length $@) {
		1460	error "$v->{path}: $@\n";
		1461
		1462	cf::cleanup "mandatory extension '$k' failed to load, exiting."
		1463	if exists $v->{meta}{mandatory};
		1464
		1465	warn "$v->{base}: optional extension cannot be loaded, skipping.\n";
		1466	delete $todo{$k};
		1467	} else {
		1468	$done{$k} = delete $todo{$k};
		1469	push @EXTS, $v->{pkg};
		1470	$progress = 1;
		1471
		1472	info "$v->{base}: extension inactive.\n"
		1473	unless $active;
		1474	}
959	1	1475	}
960	} or warn "$ext not loaded: $@";	1476
		1477	unless ($progress) {
		1478	warn "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n";
		1479
		1480	while (my ($k, $v) = each %todo) {
		1481	cf::cleanup "mandatory extension '$k' has unresolved dependencies, exiting."
		1482	if exists $v->{meta}{mandatory};
		1483	}
		1484	}
		1485	}
961	}	1486	};
962	}	1487	}
963		1488
964	#############################################################################	1489	#############################################################################
965	# load/save/clean perl data associated with a map
966		1490
967	*cf::mapsupport::on_clean = sub {	1491	=back
		1492
		1493	=head2 CORE EXTENSIONS
		1494
		1495	Functions and methods that extend core deliantra objects.
		1496
		1497	=cut
		1498
		1499	package cf::player;
		1500
		1501	use Coro::AIO;
		1502
		1503	=head3 cf::player
		1504
		1505	=over 4
		1506
		1507	=item cf::player::num_playing
		1508
		1509	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1510
		1511	=cut
		1512
		1513	sub num_playing {
		1514	scalar grep
		1515	$_->ob->map
		1516	&& !$_->hidden
		1517	&& !$_->ob->flag (cf::FLAG_WIZ),
		1518	cf::player::list
		1519	}
		1520
		1521	=item cf::player::find $login
		1522
		1523	Returns the given player object, loading it if necessary (might block).
		1524
		1525	=cut
		1526
		1527	sub playerdir($) {
		1528	"$PLAYERDIR/"
		1529	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1530	}
		1531
		1532	sub path($) {
		1533	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1534
		1535	(playerdir $login) . "/playerdata"
		1536	}
		1537
		1538	sub find_active($) {
		1539	$cf::PLAYER{$_[0]}
		1540	and $cf::PLAYER{$_[0]}->active
		1541	and $cf::PLAYER{$_[0]}
		1542	}
		1543
		1544	sub exists($) {
968	my ($map) = @_;	1545	my ($login) = @_;
969		1546
970	my $path = $map->tmpname;	1547	$cf::PLAYER{$login}
971	defined $path or return;	1548	or !aio_stat path $login
972
973	unlink "$path.pst";
974	};
975
976	cf::map->attach (prio => -10000, package => cf::mapsupport::);
977
978	#############################################################################
979	# load/save perl data associated with player->ob objects
980
981	sub all_objects(@) {
982	@_, map all_objects ($_->inv), @_
983	}	1549	}
984		1550
985	# TODO: compatibility cruft, remove when no longer needed	1551	sub find($) {
		1552	return $cf::PLAYER{$_[0]} || do {
		1553	my $login = $_[0];
		1554
		1555	my $guard = cf::lock_acquire "user_find:$login";
		1556
		1557	$cf::PLAYER{$_[0]} || do {
		1558	# rename old playerfiles to new ones
		1559	#TODO: remove when no longer required
		1560	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1561	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1562	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1563	aio_unlink +(playerdir $login) . "/$login.pl";
		1564
		1565	my $f = new_from_file cf::object::thawer path $login
		1566	or return;
		1567
		1568	my $pl = cf::player::load_pl $f
		1569	or return;
		1570
		1571	local $cf::PLAYER_LOADING{$login} = $pl;
		1572	$f->resolve_delayed_derefs;
		1573	$cf::PLAYER{$login} = $pl
		1574	}
		1575	}
		1576	}
		1577
986	cf::player->attach (	1578	cf::player->attach (
987	on_load => sub {	1579	on_load => sub {
988	my ($pl, $path) = @_;	1580	my ($pl, $path) = @_;
989		1581
990	for my $o (all_objects $pl->ob) {	1582	# restore slots saved in save, below
991	if (my $value = $o->get_ob_key_value ("_perl_data")) {	1583	my $slots = delete $pl->{_slots};
992	$o->set_ob_key_value ("_perl_data");
993		1584
994	%$o = %{ Storable::thaw pack "H*", $value };	1585	$pl->ob->current_weapon ($slots->[0]);
995	}	1586	$pl->combat_ob ($slots->[1]);
996	}	1587	$pl->ranged_ob ($slots->[2]);
997	},	1588	},
998	);	1589	);
999		1590
1000	#############################################################################	1591	sub save($) {
		1592	my ($pl) = @_;
1001		1593
1002	=head2 CORE EXTENSIONS	1594	return if $pl->{deny_save};
1003		1595
1004	Functions and methods that extend core crossfire objects.	1596	my $path = path $pl;
		1597	my $guard = cf::lock_acquire "user_save:$path";
1005		1598
1006	=head3 cf::player	1599	return if $pl->{deny_save};
		1600
		1601	aio_mkdir playerdir $pl, 0770;
		1602	$pl->{last_save} = $cf::RUNTIME;
		1603
		1604	cf::get_slot 0.01;
		1605
		1606	# save slots, to be restored later
		1607	local $pl->{_slots} = [$pl->ob->current_weapon, $pl->combat_ob, $pl->ranged_ob];
		1608
		1609	$pl->save_pl ($path);
		1610	cf::cede_to_tick;
		1611	}
		1612
		1613	sub new($) {
		1614	my ($login) = @_;
		1615
		1616	my $self = create;
		1617
		1618	$self->ob->name ($login);
		1619	$self->{deny_save} = 1;
		1620
		1621	$cf::PLAYER{$login} = $self;
		1622
		1623	$self
		1624	}
		1625
		1626	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1627
		1628	=cut
		1629
		1630	sub send_msg {
		1631	my $ns = shift->ns
		1632	or return;
		1633	$ns->send_msg (@_);
		1634	}
		1635
		1636	=item $pl->quit_character
		1637
		1638	Nukes the player without looking back. If logged in, the connection will
		1639	be destroyed. May block for a long time.
		1640
		1641	=cut
		1642
		1643	sub quit_character {
		1644	my ($pl) = @_;
		1645
		1646	my $name = $pl->ob->name;
		1647
		1648	$pl->{deny_save} = 1;
		1649	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1650
		1651	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1652	$pl->deactivate;
		1653	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1654	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1655	$pl->ns->destroy if $pl->ns;
		1656
		1657	my $path = playerdir $pl;
		1658	my $temp = "$path~$cf::RUNTIME~deleting~";
		1659	aio_rename $path, $temp;
		1660	delete $cf::PLAYER{$pl->ob->name};
		1661	$pl->destroy;
		1662
		1663	my $prefix = qr<^~\Q$name\E/>;
		1664
		1665	# nuke player maps
		1666	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1667
		1668	IO::AIO::aio_rmtree $temp;
		1669	}
		1670
		1671	=item $pl->kick
		1672
		1673	Kicks a player out of the game. This destroys the connection.
		1674
		1675	=cut
		1676
		1677	sub kick {
		1678	my ($pl, $kicker) = @_;
		1679
		1680	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1681	$pl->killer ("kicked");
		1682	$pl->ns->destroy;
		1683	}
		1684
		1685	=item cf::player::list_logins
		1686
		1687	Returns am arrayref of all valid playernames in the system, can take a
		1688	while and may block, so not sync_job-capable, ever.
		1689
		1690	=cut
		1691
		1692	sub list_logins {
		1693	my $dirs = aio_readdir $PLAYERDIR
		1694	or return [];
		1695
		1696	my @logins;
		1697
		1698	for my $login (@$dirs) {
		1699	my $path = path $login;
		1700
		1701	# a .pst is a dead give-away for a valid player
		1702	# if no pst file found, open and chekc for blocked users
		1703	if (aio_stat "$path.pst") {
		1704	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1705	aio_read $fh, 0, 512, my $buf, 0 or next;
		1706	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1707	}
		1708
		1709	utf8::decode $login;
		1710	push @logins, $login;
		1711	}
		1712
		1713	\@logins
		1714	}
		1715
		1716	=item $player->maps
		1717
		1718	=item cf::player::maps $login
		1719
		1720	Returns an arrayref of map paths that are private for this
		1721	player. May block.
		1722
		1723	=cut
		1724
		1725	sub maps($) {
		1726	my ($pl) = @_;
		1727
		1728	$pl = ref $pl ? $pl->ob->name : $pl;
		1729
		1730	my $files = aio_readdir playerdir $pl
		1731	or return;
		1732
		1733	my @paths;
		1734
		1735	for (@$files) {
		1736	utf8::decode $_;
		1737	next if /\.(?:pl|pst)$/;
		1738	next unless /^$PATH_SEP/o;
		1739
		1740	push @paths, cf::map::normalise "~$pl/$_";
		1741	}
		1742
		1743	\@paths
		1744	}
		1745
		1746	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1747
		1748	Expand deliantra pod fragments into protocol xml.
		1749
		1750	=item $player->ext_reply ($msgid, @msg)
		1751
		1752	Sends an ext reply to the player.
		1753
		1754	=cut
		1755
		1756	sub ext_reply($$@) {
		1757	my ($self, $id, @msg) = @_;
		1758
		1759	$self->ns->ext_reply ($id, @msg)
		1760	}
		1761
		1762	=item $player->ext_msg ($type, @msg)
		1763
		1764	Sends an ext event to the client.
		1765
		1766	=cut
		1767
		1768	sub ext_msg($$@) {
		1769	my ($self, $type, @msg) = @_;
		1770
		1771	$self->ns->ext_msg ($type, @msg);
		1772	}
		1773
		1774	=head3 cf::region
1007		1775
1008	=over 4	1776	=over 4
1009		1777
1010	=item cf::player::exists $login
1011
1012	Returns true when the given account exists.
1013
1014	=cut	1778	=cut
1015		1779
1016	sub cf::player::exists($) {	1780	package cf::region;
1017	cf::player::find $_[0]
1018	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1019	}
1020		1781
1021	=item $player->ext_reply ($msgid, $msgtype, %msg)	1782	=item cf::region::find_by_path $path
1022		1783
1023	Sends an ext reply to the player.	1784	Tries to decuce the likely region for a map knowing only its path.
1024		1785
1025	=cut	1786	=cut
1026		1787
1027	sub cf::player::ext_reply($$$%) {	1788	sub find_by_path($) {
1028	my ($self, $id, %msg) = @_;	1789	my ($path) = @_;
1029		1790
1030	$msg{msgid} = $id;	1791	$path =~ s/^~[^\/]*//; # skip ~login
1031		1792
1032	$self->send ("ext " . to_json \%msg);	1793	my ($match, $specificity);
		1794
		1795	for my $region (list) {
		1796	if ($region->{match} && $path =~ $region->{match}) {
		1797	($match, $specificity) = ($region, $region->specificity)
		1798	if $region->specificity > $specificity;
		1799	}
		1800	}
		1801
		1802	$match
1033	}	1803	}
1034		1804
1035	=back	1805	=back
1036
1037		1806
1038	=head3 cf::map	1807	=head3 cf::map
1039		1808
1040	=over 4	1809	=over 4
1041		1810
…		…
1044	package cf::map;	1813	package cf::map;
1045		1814
1046	use Fcntl;	1815	use Fcntl;
1047	use Coro::AIO;	1816	use Coro::AIO;
1048		1817
		1818	use overload
		1819	'""' => \&as_string,
		1820	fallback => 1;
		1821
1049	our $MAX_RESET = 7200;	1822	our $MAX_RESET = 3600;
1050	our $DEFAULT_RESET = 3600;	1823	our $DEFAULT_RESET = 3000;
1051	$MAX_RESET = 10;#d#
1052	$DEFAULT_RESET = 10;#d#
1053		1824
1054	sub generate_random_map {	1825	sub generate_random_map {
1055	my ($path, $rmp) = @_;	1826	my ($self, $rmp) = @_;
		1827
		1828	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1056		1829
1057	# mit "rum" bekleckern, nicht	1830	# mit "rum" bekleckern, nicht
1058	cf::map::_create_random_map	1831	$self->_create_random_map (
1059	$path,
1060	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1832	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1061	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1833	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle}, $rmp->{miningstyle},
1062	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1834	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1063	$rmp->{exit_on_final_map},	1835	$rmp->{exit_on_final_map},
1064	$rmp->{xsize}, $rmp->{ysize},	1836	$rmp->{xsize}, $rmp->{ysize},
1065	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1837	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1066	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1838	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1067	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1839	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1068	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1840	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1069	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1841	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1070	(cf::region::find $rmp->{region})	1842	(cf::region::find $rmp->{region}), $rmp->{custom}
		1843	)
1071	}	1844	}
1072		1845
1073	# and all this just because we cannot iterate over	1846	=item cf::map->register ($regex, $prio)
1074	# all maps in C++...
1075	sub change_all_map_light {
1076	my ($change) = @_;
1077		1847
1078	$_->change_map_light ($change) for values %cf::MAP;	1848	Register a handler for the map path matching the given regex at the
1079	}	1849	givne priority (higher is better, built-in handlers have priority 0, the
		1850	default).
1080		1851
1081	sub try_load_header($) {	1852	=cut
		1853
		1854	sub register {
		1855	my (undef, $regex, $prio) = @_;
		1856	my $pkg = caller;
		1857
		1858	push @{"$pkg\::ISA"}, __PACKAGE__;
		1859
		1860	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1861	}
		1862
		1863	# also paths starting with '/'
		1864	$EXT_MAP{"cf::map::wrap"} = [0, qr{^(?=/)}];
		1865
		1866	sub thawer_merge {
		1867	my ($self, $merge) = @_;
		1868
		1869	# we have to keep some variables in memory intact
		1870	local $self->{path};
		1871	local $self->{load_path};
		1872
		1873	$self->SUPER::thawer_merge ($merge);
		1874	}
		1875
		1876	sub normalise {
1082	my ($path) = @_;	1877	my ($path, $base) = @_;
		1878
		1879	$path = "$path"; # make sure it's a string
		1880
		1881	$path =~ s/\.map$//;
		1882
		1883	# map plan:
		1884	#
		1885	# /! non-realised random map exit (special hack!)
		1886	# {... are special paths that are not being touched
		1887	# ?xxx/... are special absolute paths
		1888	# ?random/... random maps
		1889	# /... normal maps
		1890	# ~user/... per-player map of a specific user
		1891
		1892	$path =~ s/$PATH_SEP/\//go;
		1893
		1894	# treat it as relative path if it starts with
		1895	# something that looks reasonable
		1896	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1897	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1898
		1899	$base =~ s{[^/]+/?$}{};
		1900	$path = "$base/$path";
		1901	}
		1902
		1903	for ($path) {
		1904	redo if s{//}{/};
		1905	redo if s{/\.?/}{/};
		1906	redo if s{/[^/]+/\.\./}{/};
		1907	}
		1908
		1909	$path
		1910	}
		1911
		1912	sub new_from_path {
		1913	my (undef, $path, $base) = @_;
		1914
		1915	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1916
		1917	$path = normalise $path, $base;
		1918
		1919	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1920	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1921	my $self = bless cf::map::new, $pkg;
		1922	$self->{path} = $path; $self->path ($path);
		1923	$self->init; # pass $1 etc.
		1924	return $self;
		1925	}
		1926	}
		1927
		1928	Carp::cluck "unable to resolve path '$path' (base '$base')";
		1929	()
		1930	}
		1931
		1932	sub init {
		1933	my ($self) = @_;
		1934
		1935	$self
		1936	}
		1937
		1938	sub as_string {
		1939	my ($self) = @_;
		1940
		1941	"$self->{path}"
		1942	}
		1943
		1944	# the displayed name, this is a one way mapping
		1945	sub visible_name {
		1946	&as_string
		1947	}
		1948
		1949	# the original (read-only) location
		1950	sub load_path {
		1951	my ($self) = @_;
		1952
		1953	"$MAPDIR/$self->{path}.map"
		1954	}
		1955
		1956	# the temporary/swap location
		1957	sub save_path {
		1958	my ($self) = @_;
		1959
		1960	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1961	"$TMPDIR/$path.map"
		1962	}
		1963
		1964	# the unique path, undef == no special unique path
		1965	sub uniq_path {
		1966	my ($self) = @_;
		1967
		1968	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1969	"$UNIQUEDIR/$path"
		1970	}
		1971
		1972	sub decay_objects {
		1973	my ($self) = @_;
		1974
		1975	return if $self->{deny_reset};
		1976
		1977	$self->do_decay_objects;
		1978	}
		1979
		1980	sub unlink_save {
		1981	my ($self) = @_;
		1982
		1983	utf8::encode (my $save = $self->save_path);
		1984	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1985	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1986	}
		1987
		1988	sub load_header_from($) {
		1989	my ($self, $path) = @_;
1083		1990
1084	utf8::encode $path;	1991	utf8::encode $path;
1085	aio_open $path, O_RDONLY, 0	1992	my $f = new_from_file cf::object::thawer $path
1086	or return;	1993	or return;
1087		1994
1088	my $map = cf::map::new	1995	$self->_load_header ($f)
1089	or return;	1996	or return;
1090		1997
1091	$map->load_header ($path)	1998	local $MAP_LOADING{$self->{path}} = $self;
		1999	$f->resolve_delayed_derefs;
		2000
		2001	$self->{load_path} = $path;
		2002
		2003	1
		2004	}
		2005
		2006	sub load_header_orig {
		2007	my ($self) = @_;
		2008
		2009	$self->load_header_from ($self->load_path)
		2010	}
		2011
		2012	sub load_header_temp {
		2013	my ($self) = @_;
		2014
		2015	$self->load_header_from ($self->save_path)
		2016	}
		2017
		2018	sub prepare_temp {
		2019	my ($self) = @_;
		2020
		2021	$self->last_access ((delete $self->{last_access})
		2022	|| $cf::RUNTIME); #d#
		2023	# safety
		2024	$self->{instantiate_time} = $cf::RUNTIME
		2025	if $self->{instantiate_time} > $cf::RUNTIME;
		2026	}
		2027
		2028	sub prepare_orig {
		2029	my ($self) = @_;
		2030
		2031	$self->{load_original} = 1;
		2032	$self->{instantiate_time} = $cf::RUNTIME;
		2033	$self->last_access ($cf::RUNTIME);
		2034	$self->instantiate;
		2035	}
		2036
		2037	sub load_header {
		2038	my ($self) = @_;
		2039
		2040	if ($self->load_header_temp) {
		2041	$self->prepare_temp;
		2042	} else {
		2043	$self->load_header_orig
1092	or return;	2044	or return;
		2045	$self->prepare_orig;
		2046	}
1093		2047
1094	$map->{load_path} = $path;	2048	$self->{deny_reset} = 1
1095	use Data::Dumper; warn Dumper $map;#d#	2049	if $self->no_reset;
1096		2050
1097	$map	2051	$self->default_region (cf::region::find_by_path $self->{path})
1098	}	2052	unless $self->default_region;
1099		2053
		2054	1
		2055	}
		2056
		2057	sub find;
1100	sub find_map {	2058	sub find {
1101	my ($path, $origin) = @_;	2059	my ($path, $origin) = @_;
1102		2060
1103	#warn "find_map<$path,$origin>\n";#d#	2061	cf::cede_to_tick;
1104		2062
1105	$path = ref $path ? $path : new cf::path $path, $origin && $origin->path;	2063	$path = normalise $path, $origin && $origin->path;
1106	my $key = $path->as_string;
1107		2064
		2065	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
		2066	my $guard2 = cf::lock_acquire "map_find:$path";
		2067
1108	$cf::MAP{$key} || do {	2068	$cf::MAP{$path} || do {
1109	# do it the slow way	2069	my $map = new_from_path cf::map $path
1110	my $map = try_load_header $path->save_path;
1111
1112	if ($map) {
1113	# safety
1114	$map->{instantiate_time} = $cf::RUNTIME
1115	if $map->{instantiate_time} > $cf::RUNTIME;
1116	} else {
1117	if (my $rmp = $path->random_map_params) {
1118	$map = generate_random_map $key, $rmp;
1119	} else {
1120	$map = try_load_header $path->load_path;
1121	}
1122
1123	$map or return;	2070	or return;
1124		2071
1125	$map->{load_original} = 1;
1126	$map->{instantiate_time} = $cf::RUNTIME;
1127	$map->instantiate;
1128
1129	# per-player maps become, after loading, normal maps
1130	$map->per_player (0) if $path->{user_rel};
1131	}
1132
1133	$map->path ($key);
1134	$map->{path} = $path;
1135	$map->last_access ($cf::RUNTIME);	2072	$map->{last_save} = $cf::RUNTIME;
1136		2073
1137	$map->reset if $map->should_reset;	2074	$map->load_header
		2075	or return;
1138		2076
		2077	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2078	# doing this can freeze the server in a sync job, obviously
		2079	#$cf::WAIT_FOR_TICK->wait;
		2080	undef $guard2;
		2081	undef $guard1;
		2082	$map->reset;
		2083	return find $path;
		2084	}
		2085
1139	$cf::MAP{$key} = $map	2086	$cf::MAP{$path} = $map
1140	}	2087	}
1141	}	2088	}
		2089
		2090	sub pre_load { }
		2091	#sub post_load { } # XS
1142		2092
1143	sub load {	2093	sub load {
1144	my ($self) = @_;	2094	my ($self) = @_;
1145		2095
1146	return if $self->in_memory != cf::MAP_SWAPPED;	2096	local $self->{deny_reset} = 1; # loading can take a long time
1147
1148	$self->in_memory (cf::MAP_LOADING);
1149		2097
1150	my $path = $self->{path};	2098	my $path = $self->{path};
1151		2099
		2100	{
		2101	my $guard = cf::lock_acquire "map_data:$path";
		2102
		2103	return unless $self->valid;
		2104	return unless $self->in_memory == cf::MAP_SWAPPED;
		2105
		2106	$self->in_memory (cf::MAP_LOADING);
		2107
1152	$self->alloc;	2108	$self->alloc;
1153	$self->load_objects ($self->{load_path}, 1)	2109
		2110	$self->pre_load;
		2111	cf::cede_to_tick;
		2112
		2113	my $f = new_from_file cf::object::thawer $self->{load_path};
		2114	$f->skip_block;
		2115	$self->_load_objects ($f)
1154	or return;	2116	or return;
1155		2117
1156	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1) if delete $self->{load_original};	2118	$self->post_load_original
		2119	if delete $self->{load_original};
1157		2120
1158	if (my $uniq = $path->uniq_path) {	2121	if (my $uniq = $self->uniq_path) {
1159	utf8::encode $uniq;	2122	utf8::encode $uniq;
1160	if (aio_open $uniq, O_RDONLY, 0) {	2123	unless (aio_stat $uniq) {
		2124	if (my $f = new_from_file cf::object::thawer $uniq) {
1161	$self->clear_unique_items;	2125	$self->clear_unique_items;
1162	$self->load_objects ($uniq, 0);	2126	$self->_load_objects ($f);
		2127	$f->resolve_delayed_derefs;
		2128	}
1163	}	2129	}
1164	}	2130	}
1165		2131
		2132	$f->resolve_delayed_derefs;
		2133
		2134	cf::cede_to_tick;
1166	# now do the right thing for maps	2135	# now do the right thing for maps
1167	$self->link_multipart_objects;	2136	$self->link_multipart_objects;
1168
1169	if ($self->{path}->is_style_map) {
1170	$self->{deny_save} = 1;
1171	$self->{deny_reset} = 1;
1172	} else {
1173	$self->fix_auto_apply;
1174	$self->decay_objects;
1175	$self->update_buttons;
1176	$self->set_darkness_map;
1177	$self->difficulty ($self->estimate_difficulty)	2137	$self->difficulty ($self->estimate_difficulty)
1178	unless $self->difficulty;	2138	unless $self->difficulty;
		2139	cf::cede_to_tick;
		2140
		2141	unless ($self->{deny_activate}) {
		2142	$self->decay_objects;
		2143	$self->fix_auto_apply;
		2144	$self->update_buttons;
		2145	cf::cede_to_tick;
1179	$self->activate;	2146	$self->activate;
1180	}	2147	}
1181		2148
		2149	$self->{last_save} = $cf::RUNTIME;
		2150	$self->last_access ($cf::RUNTIME);
		2151
1182	$self->in_memory (cf::MAP_IN_MEMORY);	2152	$self->in_memory (cf::MAP_ACTIVE);
1183	}	2153	}
1184		2154
1185	sub load_map_sync {	2155	$self->post_load;
		2156	}
		2157
		2158	# customize the map for a given player, i.e.
		2159	# return the _real_ map. used by e.g. per-player
		2160	# maps to change the path to ~playername/mappath
		2161	sub customise_for {
		2162	my ($self, $ob) = @_;
		2163
		2164	return find "~" . $ob->name . "/" . $self->{path}
		2165	if $self->per_player;
		2166
		2167	# return find "?party/" . $ob->name . "/" . $self->{path}
		2168	# if $self->per_party;
		2169
		2170	$self
		2171	}
		2172
		2173	# find and load all maps in the 3x3 area around a map
		2174	sub load_neighbours {
		2175	my ($map) = @_;
		2176
		2177	my @neigh; # diagonal neighbours
		2178
		2179	for (0 .. 3) {
		2180	my $neigh = $map->tile_path ($_)
		2181	or next;
		2182	$neigh = find $neigh, $map
		2183	or next;
		2184	$neigh->load;
		2185
		2186	# now find the diagonal neighbours
		2187	push @neigh,
		2188	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2189	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2190	}
		2191
		2192	for (grep defined $_->[0], @neigh) {
		2193	my ($path, $origin) = @$_;
		2194	my $neigh = find $path, $origin
		2195	or next;
		2196	$neigh->load;
		2197	}
		2198	}
		2199
		2200	sub find_sync {
1186	my ($path, $origin) = @_;	2201	my ($path, $origin) = @_;
1187		2202
1188	#warn "load_map_sync<$path, $origin>\n";#d#	2203	return cf::LOG cf::llevError | cf::logBacktrace, "do_find_sync"
		2204	if $Coro::current == $Coro::main;
1189		2205
1190	cf::sync_job {	2206	find $path, $origin
1191	my $map = cf::map::find_map $path, $origin	2207	}
1192	or return;	2208
		2209	sub do_load_sync {
		2210	my ($map) = @_;
		2211
		2212	return cf::LOG cf::llevError | cf::logBacktrace, "do_load_sync"
		2213	if $Coro::current == $Coro::main;
		2214
1193	$map->load;	2215	$map->load;
1194	$map	2216	}
		2217
		2218	our %MAP_PREFETCH;
		2219	our $MAP_PREFETCHER = undef;
		2220
		2221	sub find_async {
		2222	my ($path, $origin, $load) = @_;
		2223
		2224	$path = normalise $path, $origin && $origin->{path};
		2225
		2226	if (my $map = $cf::MAP{$path}) {
		2227	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2228	}
		2229
		2230	$MAP_PREFETCH{$path} |= $load;
		2231
		2232	$MAP_PREFETCHER ||= cf::async {
		2233	$Coro::current->{desc} = "map prefetcher";
		2234
		2235	while (%MAP_PREFETCH) {
		2236	while (my ($k, $v) = each %MAP_PREFETCH) {
		2237	if (my $map = find $k) {
		2238	$map->load if $v;
		2239	}
		2240
		2241	delete $MAP_PREFETCH{$k};
		2242	}
		2243	}
		2244	undef $MAP_PREFETCHER;
		2245	};
		2246	$MAP_PREFETCHER->prio (6);
		2247
		2248	()
		2249	}
		2250
		2251	# common code, used by both ->save and ->swapout
		2252	sub _save {
		2253	my ($self) = @_;
		2254
		2255	$self->{last_save} = $cf::RUNTIME;
		2256
		2257	return unless $self->dirty;
		2258
		2259	my $save = $self->save_path; utf8::encode $save;
		2260	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2261
		2262	$self->{load_path} = $save;
		2263
		2264	return if $self->{deny_save};
		2265
		2266	local $self->{last_access} = $self->last_access;#d#
		2267
		2268	cf::async {
		2269	$Coro::current->{desc} = "map player save";
		2270	$_->contr->save for $self->players;
		2271	};
		2272
		2273	cf::get_slot 0.02;
		2274
		2275	if ($uniq) {
		2276	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
		2277	$self->_save_objects ($uniq, cf::IO_UNIQUES);
		2278	} else {
		2279	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1195	}	2280	}
1196	}	2281	}
1197		2282
1198	sub save {	2283	sub save {
1199	my ($self) = @_;	2284	my ($self) = @_;
1200		2285
1201	my $save = $self->{path}->save_path; utf8::encode $save;	2286	my $lock = cf::lock_acquire "map_data:$self->{path}";
1202	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;
1203		2287
1204	$self->{last_save} = $cf::RUNTIME;	2288	$self->_save;
1205
1206	return unless $self->dirty;
1207
1208	$self->{load_path} = $save;
1209
1210	return if $self->{deny_save};
1211
1212	warn "saving map ", $self->path;
1213
1214	if ($uniq) {
1215	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1216	$self->save_objects ($uniq, cf::IO_UNIQUES);
1217	} else {
1218	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1219	}
1220	}	2289	}
1221		2290
1222	sub swap_out {	2291	sub swap_out {
1223	my ($self) = @_;	2292	my ($self) = @_;
1224		2293
		2294	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2295
		2296	return if $self->in_memory != cf::MAP_ACTIVE;
		2297	return if $self->{deny_save};
1225	return if $self->players;	2298	return if $self->players;
1226	return if $self->in_memory != cf::MAP_IN_MEMORY;
1227	return if $self->{deny_save};
1228		2299
		2300	# first deactivate the map and "unlink" it from the core
		2301	$self->deactivate;
		2302	$_->clear_links_to ($self) for values %cf::MAP;
		2303	$self->in_memory (cf::MAP_SWAPPED);
		2304
		2305	# then atomically save
1229	$self->save;	2306	$self->_save;
		2307
		2308	# then free the map
1230	$self->clear;	2309	$self->clear;
1231	$self->in_memory (cf::MAP_SWAPPED);	2310	}
		2311
		2312	sub reset_at {
		2313	my ($self) = @_;
		2314
		2315	# TODO: safety, remove and allow resettable per-player maps
		2316	return 1e99 if $self->{deny_reset};
		2317
		2318	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
		2319	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
		2320
		2321	$time + $to
1232	}	2322	}
1233		2323
1234	sub should_reset {	2324	sub should_reset {
1235	my ($map) = @_;
1236
1237	# TODO: safety, remove and allow resettable per-player maps
1238	return if $map->{path}{user_rel};#d#
1239	return if $map->{deny_reset};
1240	#return unless $map->reset_timeout;
1241
1242	my $time = $map->fixed_resettime ? $map->{instantiate_time} : $map->last_access;
1243	my $to = $map->reset_timeout || $DEFAULT_RESET;
1244	$to = $MAX_RESET if $to > $MAX_RESET;
1245
1246	$time + $to < $cf::RUNTIME
1247	}
1248
1249	sub unlink_save {
1250	my ($self) = @_;	2325	my ($self) = @_;
1251		2326
1252	utf8::encode (my $save = $self->{path}->save_path);	2327	$self->reset_at <= $cf::RUNTIME
1253	aioreq_pri 3; IO::AIO::aio_unlink $save;
1254	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1255	}	2328	}
1256		2329
1257	sub reset {	2330	sub reset {
1258	my ($self) = @_;	2331	my ($self) = @_;
1259		2332
		2333	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2334
1260	return if $self->players;	2335	return if $self->players;
1261	return if $self->{path}{user_rel};#d#
1262		2336
1263	warn "resetting map ", $self->path;#d#	2337	cf::trace "resetting map ", $self->path, "\n";
		2338
		2339	$self->in_memory (cf::MAP_SWAPPED);
		2340
		2341	# need to save uniques path
		2342	unless ($self->{deny_save}) {
		2343	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2344
		2345	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2346	if $uniq;
		2347	}
1264		2348
1265	delete $cf::MAP{$self->path};	2349	delete $cf::MAP{$self->path};
1266		2350
		2351	$self->deactivate;
1267	$_->clear_links_to ($self) for values %cf::MAP;	2352	$_->clear_links_to ($self) for values %cf::MAP;
		2353	$self->clear;
1268		2354
1269	$self->unlink_save;	2355	$self->unlink_save;
1270	$self->destroy;	2356	$self->destroy;
1271	}	2357	}
1272		2358
1273	sub customise_for {	2359	my $nuke_counter = "aaaa";
1274	my ($map, $ob) = @_;
1275		2360
1276	if ($map->per_player) {	2361	sub nuke {
1277	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2362	my ($self) = @_;
		2363
1278	}	2364	{
		2365	my $lock = cf::lock_acquire "map_data:$self->{path}";
1279		2366
1280	$map	2367	delete $cf::MAP{$self->path};
1281	}
1282		2368
1283	sub emergency_save {	2369	$self->unlink_save;
1284	local $cf::FREEZE = 1;
1285		2370
1286	warn "enter emergency map save\n";	2371	bless $self, "cf::map::wrap";
		2372	delete $self->{deny_reset};
		2373	$self->{deny_save} = 1;
		2374	$self->reset_timeout (1);
		2375	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1287		2376
1288	cf::sync_job {	2377	$cf::MAP{$self->path} = $self;
1289	warn "begin emergency map save\n";
1290	$_->save for values %cf::MAP;
1291	};	2378	}
1292		2379
1293	warn "end emergency map save\n";	2380	$self->reset; # polite request, might not happen
		2381	}
		2382
		2383	=item $maps = cf::map::tmp_maps
		2384
		2385	Returns an arrayref with all map paths of currently instantiated and saved
		2386	maps. May block.
		2387
		2388	=cut
		2389
		2390	sub tmp_maps() {
		2391	[
		2392	map {
		2393	utf8::decode $_;
		2394	/\.map$/
		2395	? normalise $_
		2396	: ()
		2397	} @{ aio_readdir $TMPDIR or [] }
		2398	]
		2399	}
		2400
		2401	=item $maps = cf::map::random_maps
		2402
		2403	Returns an arrayref with all map paths of currently instantiated and saved
		2404	random maps. May block.
		2405
		2406	=cut
		2407
		2408	sub random_maps() {
		2409	[
		2410	map {
		2411	utf8::decode $_;
		2412	/\.map$/
		2413	? normalise "?random/$_"
		2414	: ()
		2415	} @{ aio_readdir $RANDOMDIR or [] }
		2416	]
		2417	}
		2418
		2419	=item cf::map::unique_maps
		2420
		2421	Returns an arrayref of paths of all shared maps that have
		2422	instantiated unique items. May block.
		2423
		2424	=cut
		2425
		2426	sub unique_maps() {
		2427	[
		2428	map {
		2429	utf8::decode $_;
		2430	s/\.map$//; # TODO future compatibility hack
		2431	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2432	? ()
		2433	: normalise $_
		2434	} @{ aio_readdir $UNIQUEDIR or [] }
		2435	]
		2436	}
		2437
		2438	=item cf::map::static_maps
		2439
		2440	Returns an arrayref if paths of all static maps (all preinstalled F<.map>
		2441	file in the shared directory excluding F</styles> and F</editor>). May
		2442	block.
		2443
		2444	=cut
		2445
		2446	sub static_maps() {
		2447	my @dirs = "";
		2448	my @maps;
		2449
		2450	while (@dirs) {
		2451	my $dir = shift @dirs;
		2452
		2453	next if $dir eq "/styles" || $dir eq "/editor";
		2454
		2455	my ($dirs, $files) = Coro::AIO::aio_scandir "$MAPDIR$dir", 2
		2456	or return;
		2457
		2458	for (@$files) {
		2459	s/\.map$// or next;
		2460	utf8::decode $_;
		2461	push @maps, "$dir/$_";
		2462	}
		2463
		2464	push @dirs, map "$dir/$_", @$dirs;
		2465	}
		2466
		2467	\@maps
		2468	}
		2469
		2470	=back
		2471
		2472	=head3 cf::object
		2473
		2474	=cut
		2475
		2476	package cf::object;
		2477
		2478	=over 4
		2479
		2480	=item $ob->inv_recursive
		2481
		2482	Returns the inventory of the object I<and> their inventories, recursively,
		2483	but I<not> the object itself.
		2484
		2485	=cut
		2486
		2487	sub inv_recursive_;
		2488	sub inv_recursive_ {
		2489	map { $_, inv_recursive_ $_->inv } @_
		2490	}
		2491
		2492	sub inv_recursive {
		2493	inv_recursive_ inv $_[0]
		2494	}
		2495
		2496	=item $ref = $ob->ref
		2497
		2498	Creates and returns a persistent reference to an object that can be stored as a string.
		2499
		2500	=item $ob = cf::object::deref ($refstring)
		2501
		2502	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2503	even if the object actually exists. May block.
		2504
		2505	=cut
		2506
		2507	sub deref {
		2508	my ($ref) = @_;
		2509
		2510	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2511	my ($uuid, $name) = ($1, $2);
		2512	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2513	or return;
		2514	$pl->ob->uuid eq $uuid
		2515	or return;
		2516
		2517	$pl->ob
		2518	} else {
		2519	warn "$ref: cannot resolve object reference\n";
		2520	undef
		2521	}
1294	}	2522	}
1295		2523
1296	package cf;	2524	package cf;
1297		2525
1298	=back	2526	=back
1299
1300		2527
1301	=head3 cf::object::player	2528	=head3 cf::object::player
1302		2529
1303	=over 4	2530	=over 4
1304		2531
…		…
1307	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2534	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1308	can be C<undef>. Does the right thing when the player is currently in a	2535	can be C<undef>. Does the right thing when the player is currently in a
1309	dialogue with the given NPC character.	2536	dialogue with the given NPC character.
1310		2537
1311	=cut	2538	=cut
		2539
		2540	our $SAY_CHANNEL = {
		2541	id => "say",
		2542	title => "Map",
		2543	reply => "say ",
		2544	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2545	};
		2546
		2547	our $CHAT_CHANNEL = {
		2548	id => "chat",
		2549	title => "Chat",
		2550	reply => "chat ",
		2551	tooltip => "Player chat and shouts, global to the server.",
		2552	};
1312		2553
1313	# rough implementation of a future "reply" method that works	2554	# rough implementation of a future "reply" method that works
1314	# with dialog boxes.	2555	# with dialog boxes.
1315	#TODO: the first argument must go, split into a $npc->reply_to ( method	2556	#TODO: the first argument must go, split into a $npc->reply_to ( method
1316	sub cf::object::player::reply($$$;$) {	2557	sub cf::object::player::reply($$$;$) {
…		…
1318		2559
1319	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2560	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1320		2561
1321	if ($self->{record_replies}) {	2562	if ($self->{record_replies}) {
1322	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2563	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2564
1323	} else {	2565	} else {
		2566	my $pl = $self->contr;
		2567
		2568	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2569	my $dialog = $pl->{npc_dialog};
		2570	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2571
		2572	} else {
1324	$msg = $npc->name . " says: $msg" if $npc;	2573	$msg = $npc->name . " says: $msg" if $npc;
1325	$self->message ($msg, $flags);	2574	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2575	}
1326	}	2576	}
		2577	}
		2578
		2579	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2580
		2581	=cut
		2582
		2583	sub cf::object::send_msg {
		2584	my $pl = shift->contr
		2585	or return;
		2586	$pl->send_msg (@_);
1327	}	2587	}
1328		2588
1329	=item $player_object->may ("access")	2589	=item $player_object->may ("access")
1330		2590
1331	Returns wether the given player is authorized to access resource "access"	2591	Returns wether the given player is authorized to access resource "access"
…		…
1340	(ref $cf::CFG{"may_$access"}	2600	(ref $cf::CFG{"may_$access"}
1341	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}	2601	? scalar grep $self->name eq $_, @{$cf::CFG{"may_$access"}}
1342	: $cf::CFG{"may_$access"})	2602	: $cf::CFG{"may_$access"})
1343	}	2603	}
1344		2604
		2605	=item $player_object->enter_link
		2606
		2607	Freezes the player and moves him/her to a special map (C<{link}>).
		2608
		2609	The player should be reasonably safe there for short amounts of time (e.g.
		2610	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2611	though, as the player cannot control the character while it is on the link
		2612	map.
		2613
		2614	Will never block.
		2615
		2616	=item $player_object->leave_link ($map, $x, $y)
		2617
		2618	Moves the player out of the special C<{link}> map onto the specified
		2619	map. If the map is not valid (or omitted), the player will be moved back
		2620	to the location he/she was before the call to C<enter_link>, or, if that
		2621	fails, to the emergency map position.
		2622
		2623	Might block.
		2624
		2625	=cut
		2626
		2627	sub link_map {
		2628	unless ($LINK_MAP) {
		2629	$LINK_MAP = cf::map::find "{link}"
		2630	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2631	$LINK_MAP->load;
		2632	}
		2633
		2634	$LINK_MAP
		2635	}
		2636
1345	sub cf::object::player::enter_link {	2637	sub cf::object::player::enter_link {
1346	my ($self) = @_;	2638	my ($self) = @_;
1347		2639
1348	return if $self->map == $LINK_MAP;
1349
1350	$self->{_link_pos} = [$self->map->{path}, $self->x, $self->y]
1351	if $self->map;
1352
1353	$self->enter_map ($LINK_MAP, 20, 20);
1354	$self->deactivate_recursive;	2640	$self->deactivate_recursive;
		2641
		2642	++$self->{_link_recursion};
		2643
		2644	return if UNIVERSAL::isa $self->map, "ext::map_link";
		2645
		2646	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
		2647	if $self->map && $self->map->{path} ne "{link}";
		2648
		2649	$self->enter_map ($LINK_MAP || link_map, 3, 3);
1355	}	2650	}
1356		2651
1357	sub cf::object::player::leave_link {	2652	sub cf::object::player::leave_link {
1358	my ($self, $map, $x, $y) = @_;	2653	my ($self, $map, $x, $y) = @_;
1359		2654
		2655	return unless $self->contr->active;
		2656
1360	my $link_pos = delete $self->{_link_pos};	2657	my $link_pos = delete $self->{_link_pos};
1361		2658
1362	unless ($map) {	2659	unless ($map) {
1363	$self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1364
1365	# restore original map position	2660	# restore original map position
1366	($map, $x, $y) = @{ $link_pos || [] };	2661	($map, $x, $y) = @{ $link_pos || [] };
1367	$map = cf::map::find_map $map;	2662	$map = cf::map::find $map;
1368		2663
1369	unless ($map) {	2664	unless ($map) {
1370	($map, $x, $y) = @$EMERGENCY_POSITION;	2665	($map, $x, $y) = @$EMERGENCY_POSITION;
1371	$map = cf::map::find_map $map	2666	$map = cf::map::find $map
1372	or die "FATAL: cannot load emergency map\n";	2667	or die "FATAL: cannot load emergency map\n";
1373	}	2668	}
1374	}	2669	}
1375		2670
1376	($x, $y) = (-1, -1)	2671	($x, $y) = (-1, -1)
1377	unless (defined $x) && (defined $y);	2672	unless (defined $x) && (defined $y);
1378		2673
1379	# use -1 or undef as default coordinates, not 0, 0	2674	# use -1 or undef as default coordinates, not 0, 0
1380	($x, $y) = ($map->enter_x, $map->enter_y)	2675	($x, $y) = ($map->enter_x, $map->enter_y)
1381	if $x <=0 && $y <= 0;	2676	if $x <= 0 && $y <= 0;
1382		2677
1383	$map->load;	2678	$map->load;
		2679	$map->load_neighbours;
1384		2680
		2681	return unless $self->contr->active;
		2682
		2683	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2684	if ($self->enter_map ($map, $x, $y)) {
		2685	# entering was successful
		2686	delete $self->{_link_recursion};
		2687	# only activate afterwards, to support waiting in hooks
1385	$self->activate_recursive;	2688	$self->activate_recursive;
1386	$self->enter_map ($map, $x, $y);	2689	}
1387	}
1388		2690
1389	=item $player_object->goto_map ($map, $x, $y)	2691	}
1390		2692
1391	=cut	2693	=item $player_object->goto ($path, $x, $y[, $check->($map, $x, $y, $player)[, $done->($player)]])
1392		2694
		2695	Moves the player to the given map-path and coordinates by first freezing
		2696	her, loading and preparing them map, calling the provided $check callback
		2697	that has to return the map if sucecssful, and then unfreezes the player on
		2698	the new (success) or old (failed) map position. In either case, $done will
		2699	be called at the end of this process.
		2700
		2701	Note that $check will be called with a potentially non-loaded map, so if
		2702	it needs a loaded map it has to call C<< ->load >>.
		2703
		2704	=cut
		2705
		2706	our $GOTOGEN;
		2707
1393	sub cf::object::player::goto_map {	2708	sub cf::object::player::goto {
1394	my ($self, $path, $x, $y) = @_;	2709	my ($self, $path, $x, $y, $check, $done) = @_;
		2710
		2711	if ($self->{_link_recursion} >= $MAX_LINKS) {
		2712	error "FATAL: link recursion exceeded, ", $self->name, " goto $path $x $y, redirecting.";
		2713	$self->failmsg ("Something went wrong inside the server - please contact an administrator!");
		2714	($path, $x, $y) = @$EMERGENCY_POSITION;
		2715	}
		2716
		2717	# do generation counting so two concurrent goto's will be executed in-order
		2718	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1395		2719
1396	$self->enter_link;	2720	$self->enter_link;
1397		2721
1398	(Coro::async {	2722	(async {
1399	$path = new cf::path $path;	2723	$Coro::current->{desc} = "player::goto $path $x $y";
1400		2724
1401	my $map = cf::map::find_map $path->as_string;	2725	# *tag paths override both path and x|y
		2726	if ($path =~ /^\*(.*)$/) {
		2727	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2728	my $ob = $obs[rand @obs];
		2729
		2730	# see if we actually can go there
		2731	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2732	$ob = $obs[rand @obs];
		2733	} else {
		2734	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2735	}
		2736	# else put us there anyways for now #d#
		2737
		2738	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2739	} else {
		2740	($path, $x, $y) = (undef, undef, undef);
		2741	}
		2742	}
		2743
		2744	my $map = eval {
		2745	my $map = defined $path ? cf::map::find $path : undef;
		2746
		2747	if ($map) {
1402	$map = $map->customise_for ($self) if $map;	2748	$map = $map->customise_for ($self);
		2749	$map = $check->($map, $x, $y, $self) if $check && $map;
		2750	} else {
		2751	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2752	}
1403		2753
1404	warn "entering ", $map->path, " at ($x, $y)\n"
1405	if $map;	2754	$map
		2755	};
1406		2756
		2757	if ($@) {
		2758	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2759	LOG llevError | logBacktrace, Carp::longmess $@;
		2760	}
		2761
		2762	if ($gen == $self->{_goto_generation}) {
		2763	delete $self->{_goto_generation};
1407	$self->leave_link ($map, $x, $y);	2764	$self->leave_link ($map, $x, $y);
		2765	}
		2766
		2767	$done->($self) if $done;
1408	})->prio (1);	2768	})->prio (1);
1409	}	2769	}
1410		2770
1411	=item $player_object->enter_exit ($exit_object)	2771	=item $player_object->enter_exit ($exit_object)
1412		2772
…		…
1414		2774
1415	sub parse_random_map_params {	2775	sub parse_random_map_params {
1416	my ($spec) = @_;	2776	my ($spec) = @_;
1417		2777
1418	my $rmp = { # defaults	2778	my $rmp = { # defaults
1419	xsize => 10,	2779	xsize => (cf::rndm 15, 40),
1420	ysize => 10,	2780	ysize => (cf::rndm 15, 40),
		2781	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2782	#layout => string,
1421	};	2783	};
1422		2784
1423	for (split /\n/, $spec) {	2785	for (split /\n/, $spec) {
1424	my ($k, $v) = split /\s+/, $_, 2;	2786	my ($k, $v) = split /\s+/, $_, 2;
1425		2787
…		…
1437	# that depends on the exit object	2799	# that depends on the exit object
1438		2800
1439	my $rmp = parse_random_map_params $exit->msg;	2801	my $rmp = parse_random_map_params $exit->msg;
1440		2802
1441	if ($exit->map) {	2803	if ($exit->map) {
1442	$rmp->{region} = $exit->map->region_name;	2804	$rmp->{region} = $exit->region->name;
1443	$rmp->{origin_map} = $exit->map->path;	2805	$rmp->{origin_map} = $exit->map->path;
1444	$rmp->{origin_x} = $exit->x;	2806	$rmp->{origin_x} = $exit->x;
1445	$rmp->{origin_y} = $exit->y;	2807	$rmp->{origin_y} = $exit->y;
		2808
		2809	$exit->map->touch;
1446	}	2810	}
1447		2811
1448	$rmp->{random_seed} ||= $exit->random_seed;	2812	$rmp->{random_seed} ||= $exit->random_seed;
1449		2813
1450	my $data = cf::to_json $rmp;	2814	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1451	my $md5 = Digest::MD5::md5_hex $data;	2815	my $md5 = Digest::MD5::md5_hex $data;
		2816	my $meta = "$RANDOMDIR/$md5.meta";
1452		2817
1453	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2818	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1454	aio_write $fh, 0, (length $data), $data, 0;	2819	aio_write $fh, 0, (length $data), $data, 0;
		2820	undef $fh;
		2821	aio_rename "$meta~", $meta;
1455		2822
		2823	my $slaying = "?random/$md5";
		2824
		2825	if ($exit->valid) {
1456	$exit->slaying ("?random/$md5");	2826	$exit->slaying ("?random/$md5");
1457	$exit->msg (undef);	2827	$exit->msg (undef);
		2828	}
1458	}	2829	}
1459	}	2830	}
1460		2831
1461	sub cf::object::player::enter_exit {	2832	sub cf::object::player::enter_exit {
1462	my ($self, $exit) = @_;	2833	my ($self, $exit) = @_;
1463		2834
1464	return unless $self->type == cf::PLAYER;	2835	return unless $self->type == cf::PLAYER;
1465		2836
1466	$self->enter_link;	2837	$self->enter_link;
1467		2838
1468	(Coro::async {	2839	(async {
		2840	$Coro::current->{desc} = "enter_exit";
		2841
1469	unless (eval {	2842	unless (eval {
		2843	$self->deactivate_recursive; # just to be sure
1470		2844
		2845	# random map handling
		2846	{
		2847	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2848
1471	prepare_random_map $exit	2849	prepare_random_map $exit
1472	if $exit->slaying eq "/!";	2850	if $exit->slaying eq "/!";
		2851	}
1473		2852
1474	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2853	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1475	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);	2854	my $x = $exit->stats->hp;
		2855	my $y = $exit->stats->sp;
1476		2856
		2857	$self->goto ($map, $x, $y);
		2858
		2859	# if exit is damned, update players death & WoR home-position
		2860	$self->contr->savebed ($map, $x, $y)
		2861	if $exit->flag (cf::FLAG_DAMNED);
		2862
1477	1;	2863	1
1478	}) {	2864	}) {
1479	$self->message ("Something went wrong deep within the crossfire server. "	2865	$self->message ("Something went wrong deep within the deliantra server. "
1480	. "I'll try to bring you back to the map you were before. "	2866	. "I'll try to bring you back to the map you were before. "
1481	. "Please report this to the dungeon master",	2867	. "Please report this to the dungeon master!",
1482	cf::NDI_UNIQUE | cf::NDI_RED);	2868	cf::NDI_UNIQUE | cf::NDI_RED);
1483		2869
1484	warn "ERROR in enter_exit: $@";	2870	error "ERROR in enter_exit: $@";
1485	$self->leave_link;	2871	$self->leave_link;
1486	}	2872	}
1487	})->prio (1);	2873	})->prio (1);
1488	}	2874	}
1489		2875
…		…
1500		2886
1501	sub cf::client::send_drawinfo {	2887	sub cf::client::send_drawinfo {
1502	my ($self, $text, $flags) = @_;	2888	my ($self, $text, $flags) = @_;
1503		2889
1504	utf8::encode $text;	2890	utf8::encode $text;
1505	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2891	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1506	}	2892	}
1507		2893
		2894	=item $client->send_big_packet ($pkt)
		2895
		2896	Like C<send_packet>, but tries to compress large packets, and fragments
		2897	them as required.
		2898
		2899	=cut
		2900
		2901	our $MAXFRAGSIZE = cf::MAXSOCKBUF - 64;
		2902
		2903	sub cf::client::send_big_packet {
		2904	my ($self, $pkt) = @_;
		2905
		2906	# try lzf for large packets
		2907	$pkt = "lzf " . Compress::LZF::compress $pkt
		2908	if 1024 <= length $pkt and $self->{can_lzf};
		2909
		2910	# split very large packets
		2911	if ($MAXFRAGSIZE < length $pkt and $self->{can_lzf}) {
		2912	$self->send_packet ("frag $_") for unpack "(a$MAXFRAGSIZE)*", $pkt;
		2913	$pkt = "frag";
		2914	}
		2915
		2916	$self->send_packet ($pkt);
		2917	}
		2918
		2919	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2920
		2921	Send a drawinfo or msg packet to the client, formatting the msg for the
		2922	client if neccessary. C<$type> should be a string identifying the type of
		2923	the message, with C<log> being the default. If C<$color> is negative, suppress
		2924	the message unless the client supports the msg packet.
		2925
		2926	=cut
		2927
		2928	# non-persistent channels (usually the info channel)
		2929	our %CHANNEL = (
		2930	"c/motd" => {
		2931	id => "infobox",
		2932	title => "MOTD",
		2933	reply => undef,
		2934	tooltip => "The message of the day",
		2935	},
		2936	"c/identify" => {
		2937	id => "infobox",
		2938	title => "Identify",
		2939	reply => undef,
		2940	tooltip => "Items recently identified",
		2941	},
		2942	"c/examine" => {
		2943	id => "infobox",
		2944	title => "Examine",
		2945	reply => undef,
		2946	tooltip => "Signs and other items you examined",
		2947	},
		2948	"c/shopinfo" => {
		2949	id => "infobox",
		2950	title => "Shop Info",
		2951	reply => undef,
		2952	tooltip => "What your bargaining skill tells you about the shop",
		2953	},
		2954	"c/book" => {
		2955	id => "infobox",
		2956	title => "Book",
		2957	reply => undef,
		2958	tooltip => "The contents of a note or book",
		2959	},
		2960	"c/lookat" => {
		2961	id => "infobox",
		2962	title => "Look",
		2963	reply => undef,
		2964	tooltip => "What you saw there",
		2965	},
		2966	"c/who" => {
		2967	id => "infobox",
		2968	title => "Players",
		2969	reply => undef,
		2970	tooltip => "Shows players who are currently online",
		2971	},
		2972	"c/body" => {
		2973	id => "infobox",
		2974	title => "Body Parts",
		2975	reply => undef,
		2976	tooltip => "Shows which body parts you posess and are available",
		2977	},
		2978	"c/statistics" => {
		2979	id => "infobox",
		2980	title => "Statistics",
		2981	reply => undef,
		2982	tooltip => "Shows your primary statistics",
		2983	},
		2984	"c/skills" => {
		2985	id => "infobox",
		2986	title => "Skills",
		2987	reply => undef,
		2988	tooltip => "Shows your experience per skill and item power",
		2989	},
		2990	"c/shopitems" => {
		2991	id => "infobox",
		2992	title => "Shop Items",
		2993	reply => undef,
		2994	tooltip => "Shows the items currently for sale in this shop",
		2995	},
		2996	"c/resistances" => {
		2997	id => "infobox",
		2998	title => "Resistances",
		2999	reply => undef,
		3000	tooltip => "Shows your resistances",
		3001	},
		3002	"c/pets" => {
		3003	id => "infobox",
		3004	title => "Pets",
		3005	reply => undef,
		3006	tooltip => "Shows information abotu your pets/a specific pet",
		3007	},
		3008	"c/perceiveself" => {
		3009	id => "infobox",
		3010	title => "Perceive Self",
		3011	reply => undef,
		3012	tooltip => "You gained detailed knowledge about yourself",
		3013	},
		3014	"c/uptime" => {
		3015	id => "infobox",
		3016	title => "Uptime",
		3017	reply => undef,
		3018	tooltip => "How long the server has been running since last restart",
		3019	},
		3020	"c/mapinfo" => {
		3021	id => "infobox",
		3022	title => "Map Info",
		3023	reply => undef,
		3024	tooltip => "Information related to the maps",
		3025	},
		3026	"c/party" => {
		3027	id => "party",
		3028	title => "Party",
		3029	reply => "gsay ",
		3030	tooltip => "Messages and chat related to your party",
		3031	},
		3032	"c/death" => {
		3033	id => "death",
		3034	title => "Death",
		3035	reply => undef,
		3036	tooltip => "Reason for and more info about your most recent death",
		3037	},
		3038	"c/say" => $SAY_CHANNEL,
		3039	"c/chat" => $CHAT_CHANNEL,
		3040	);
		3041
		3042	sub cf::client::send_msg {
		3043	my ($self, $channel, $msg, $color, @extra) = @_;
		3044
		3045	$msg = $self->pl->expand_cfpod ($msg)
		3046	unless $color & cf::NDI_VERBATIM;
		3047
		3048	$color &= cf::NDI_CLIENT_MASK; # just in case...
		3049
		3050	# check predefined channels, for the benefit of C
		3051	if ($CHANNEL{$channel}) {
		3052	$channel = $CHANNEL{$channel};
		3053
		3054	$self->ext_msg (channel_info => $channel);
		3055	$channel = $channel->{id};
		3056
		3057	} elsif (ref $channel) {
		3058	# send meta info to client, if not yet sent
		3059	unless (exists $self->{channel}{$channel->{id}}) {
		3060	$self->{channel}{$channel->{id}} = $channel;
		3061	$self->ext_msg (channel_info => $channel);
		3062	}
		3063
		3064	$channel = $channel->{id};
		3065	}
		3066
		3067	return unless @extra || length $msg;
		3068
		3069	# default colour, mask it out
		3070	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		3071	if $color & cf::NDI_DEF;
		3072
		3073	my $pkt = "msg "
		3074	. $self->{json_coder}->encode (
		3075	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		3076	);
		3077
		3078	$self->send_big_packet ($pkt);
		3079	}
		3080
		3081	=item $client->ext_msg ($type, @msg)
		3082
		3083	Sends an ext event to the client.
		3084
		3085	=cut
		3086
		3087	sub cf::client::ext_msg($$@) {
		3088	my ($self, $type, @msg) = @_;
		3089
		3090	if ($self->extcmd == 2) {
		3091	$self->send_big_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		3092	} elsif ($self->extcmd == 1) { # TODO: remove
		3093	push @msg, msgtype => "event_$type";
		3094	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3095	}
		3096	}
		3097
		3098	=item $client->ext_reply ($msgid, @msg)
		3099
		3100	Sends an ext reply to the client.
		3101
		3102	=cut
		3103
		3104	sub cf::client::ext_reply($$@) {
		3105	my ($self, $id, @msg) = @_;
		3106
		3107	if ($self->extcmd == 2) {
		3108	$self->send_big_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		3109	} elsif ($self->extcmd == 1) {
		3110	#TODO: version 1, remove
		3111	unshift @msg, msgtype => "reply", msgid => $id;
		3112	$self->send_big_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		3113	}
		3114	}
1508		3115
1509	=item $success = $client->query ($flags, "text", \&cb)	3116	=item $success = $client->query ($flags, "text", \&cb)
1510		3117
1511	Queues a query to the client, calling the given callback with	3118	Queues a query to the client, calling the given callback with
1512	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	3119	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1513	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	3120	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1514		3121
1515	Queries can fail, so check the return code. Or don't, as queries will become	3122	Queries can fail, so check the return code. Or don't, as queries will
1516	reliable at some point in the future.	3123	become reliable at some point in the future.
1517		3124
1518	=cut	3125	=cut
1519		3126
1520	sub cf::client::query {	3127	sub cf::client::query {
1521	my ($self, $flags, $text, $cb) = @_;	3128	my ($self, $flags, $text, $cb) = @_;
…		…
1529	utf8::encode $text;	3136	utf8::encode $text;
1530	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	3137	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1531		3138
1532	$self->send_packet ($self->{query_queue}[0][0])	3139	$self->send_packet ($self->{query_queue}[0][0])
1533	if @{ $self->{query_queue} } == 1;	3140	if @{ $self->{query_queue} } == 1;
		3141
		3142	1
1534	}	3143	}
1535		3144
1536	cf::client->attach (	3145	cf::client->attach (
		3146	on_connect => sub {
		3147	my ($ns) = @_;
		3148
		3149	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		3150	},
1537	on_reply => sub {	3151	on_reply => sub {
1538	my ($ns, $msg) = @_;	3152	my ($ns, $msg) = @_;
1539		3153
1540	# this weird shuffling is so that direct followup queries	3154	# this weird shuffling is so that direct followup queries
1541	# get handled first	3155	# get handled first
1542	my $queue = delete $ns->{query_queue};	3156	my $queue = delete $ns->{query_queue}
		3157	or return; # be conservative, not sure how that can happen, but we saw a crash here
1543		3158
1544	(shift @$queue)->[1]->($msg);	3159	(shift @$queue)->[1]->($msg);
		3160	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1545		3161
1546	push @{ $ns->{query_queue} }, @$queue;	3162	push @{ $ns->{query_queue} }, @$queue;
1547		3163
1548	if (@{ $ns->{query_queue} } == @$queue) {	3164	if (@{ $ns->{query_queue} } == @$queue) {
1549	if (@$queue) {	3165	if (@$queue) {
…		…
1551	} else {	3167	} else {
1552	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	3168	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1553	}	3169	}
1554	}	3170	}
1555	},	3171	},
		3172	on_exticmd => sub {
		3173	my ($ns, $buf) = @_;
		3174
		3175	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		3176
		3177	if (ref $msg) {
		3178	my ($type, $reply, @payload) =
		3179	"ARRAY" eq ref $msg
		3180	? @$msg
		3181	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3182
		3183	my @reply;
		3184
		3185	if (my $cb = $EXTICMD{$type}) {
		3186	@reply = $cb->($ns, @payload);
		3187	}
		3188
		3189	$ns->ext_reply ($reply, @reply)
		3190	if $reply;
		3191
		3192	} else {
		3193	error "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3194	}
		3195
		3196	cf::override;
		3197	},
1556	);	3198	);
1557		3199
1558	=item $client->coro (\&cb)	3200	=item $client->async (\&cb)
1559		3201
1560	Create a new coroutine, running the specified callback. The coroutine will	3202	Create a new coroutine, running the specified callback. The coroutine will
1561	be automatically cancelled when the client gets destroyed (e.g. on logout,	3203	be automatically cancelled when the client gets destroyed (e.g. on logout,
1562	or loss of connection).	3204	or loss of connection).
1563		3205
1564	=cut	3206	=cut
1565		3207
1566	sub cf::client::coro {	3208	sub cf::client::async {
1567	my ($self, $cb) = @_;	3209	my ($self, $cb) = @_;
1568		3210
1569	my $coro; $coro = async {	3211	my $coro = &Coro::async ($cb);
1570	eval {
1571	$cb->();
1572	};
1573	warn $@ if $@;
1574	};
1575		3212
1576	$coro->on_destroy (sub {	3213	$coro->on_destroy (sub {
1577	delete $self->{_coro}{$coro+0};	3214	delete $self->{_coro}{$coro+0};
1578	});	3215	});
1579		3216
…		…
1581		3218
1582	$coro	3219	$coro
1583	}	3220	}
1584		3221
1585	cf::client->attach (	3222	cf::client->attach (
1586	on_destroy => sub {	3223	on_client_destroy => sub {
1587	my ($ns) = @_;	3224	my ($ns) = @_;
1588		3225
1589	$_->cancel for values %{ (delete $ns->{_coro}) || {} };	3226	$_->cancel for values %{ (delete $ns->{_coro}) || {} };
1590	},	3227	},
1591	);	3228	);
…		…
1606	our $safe = new Safe "safe";	3243	our $safe = new Safe "safe";
1607	our $safe_hole = new Safe::Hole;	3244	our $safe_hole = new Safe::Hole;
1608		3245
1609	$SIG{FPE} = 'IGNORE';	3246	$SIG{FPE} = 'IGNORE';
1610		3247
1611	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3248	$safe->permit_only (Opcode::opset qw(
		3249	:base_core :base_mem :base_orig :base_math :base_loop
		3250	grepstart grepwhile mapstart mapwhile
		3251	sort time
		3252	));
1612		3253
1613	# here we export the classes and methods available to script code	3254	# here we export the classes and methods available to script code
1614		3255
1615	=pod	3256	=pod
1616		3257
1617	The following fucntions and emthods are available within a safe environment:	3258	The following functions and methods are available within a safe environment:
1618		3259
1619	cf::object contr pay_amount pay_player map	3260	cf::object
		3261	contr pay_amount pay_player map x y force_find force_add destroy
		3262	insert remove name archname title slaying race decrease split
		3263	value
		3264
1620	cf::object::player player	3265	cf::object::player
1621	cf::player peaceful	3266	player
1622	cf::map trigger	3267
		3268	cf::player
		3269	peaceful
		3270
		3271	cf::map
		3272	trigger
1623		3273
1624	=cut	3274	=cut
1625		3275
1626	for (	3276	for (
1627	["cf::object" => qw(contr pay_amount pay_player map)],	3277	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3278	insert remove inv nrof name archname title slaying race
		3279	decrease split destroy change_exp value msg lore send_msg)],
1628	["cf::object::player" => qw(player)],	3280	["cf::object::player" => qw(player)],
1629	["cf::player" => qw(peaceful)],	3281	["cf::player" => qw(peaceful send_msg)],
1630	["cf::map" => qw(trigger)],	3282	["cf::map" => qw(trigger)],
1631	) {	3283	) {
1632	no strict 'refs';
1633	my ($pkg, @funs) = @$_;	3284	my ($pkg, @funs) = @$_;
1634	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3285	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
1635	for @funs;	3286	for @funs;
1636	}	3287	}
1637		3288
…		…
1652		3303
1653	my $qcode = $code;	3304	my $qcode = $code;
1654	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3305	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1655	$qcode =~ s/\n/\\n/g;	3306	$qcode =~ s/\n/\\n/g;
1656		3307
		3308	%vars = (_dummy => 0) unless %vars;
		3309
		3310	my @res;
1657	local $_;	3311	local $_;
1658	local @safe::cf::_safe_eval_args = values %vars;
1659		3312
1660	my $eval =	3313	my $eval =
1661	"do {\n"	3314	"do {\n"
1662	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"	3315	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
1663	. "#line 0 \"{$qcode}\"\n"	3316	. "#line 0 \"{$qcode}\"\n"
1664	. $code	3317	. $code
1665	. "\n}"	3318	. "\n}"
1666	;	3319	;
1667		3320
		3321	if ($CFG{safe_eval}) {
1668	sub_generation_inc;	3322	sub_generation_inc;
		3323	local @safe::cf::_safe_eval_args = values %vars;
1669	my @res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);	3324	@res = wantarray ? $safe->reval ($eval) : scalar $safe->reval ($eval);
1670	sub_generation_inc;	3325	sub_generation_inc;
		3326	} else {
		3327	local @cf::_safe_eval_args = values %vars;
		3328	@res = wantarray ? eval eval : scalar eval $eval;
		3329	}
1671		3330
1672	if ($@) {	3331	if ($@) {
1673	warn "$@";	3332	warn "$@",
1674	warn "while executing safe code '$code'\n";	3333	"while executing safe code '$code'\n",
1675	warn "with arguments " . (join " ", %vars) . "\n";	3334	"with arguments " . (join " ", %vars) . "\n";
1676	}	3335	}
1677		3336
1678	wantarray ? @res : $res[0]	3337	wantarray ? @res : $res[0]
1679	}	3338	}
1680		3339
…		…
1694	=cut	3353	=cut
1695		3354
1696	sub register_script_function {	3355	sub register_script_function {
1697	my ($fun, $cb) = @_;	3356	my ($fun, $cb) = @_;
1698		3357
1699	no strict 'refs';	3358	$fun = "safe::$fun" if $CFG{safe_eval};
1700	*{"safe::$fun"} = $safe_hole->wrap ($cb);	3359	*$fun = $safe_hole->wrap ($cb);
1701	}	3360	}
1702		3361
1703	=back	3362	=back
1704		3363
1705	=cut	3364	=cut
1706		3365
1707	#############################################################################	3366	#############################################################################
		3367	# the server's init and main functions
1708		3368
1709	=head2 EXTENSION DATABASE SUPPORT	3369	sub load_facedata($) {
		3370	my ($path) = @_;
1710		3371
1711	Crossfire maintains a very simple database for extension use. It can	3372	# HACK to clear player env face cache, we need some signal framework
1712	currently store anything that can be serialised using Storable, which	3373	# for this (global event?)
1713	excludes objects.	3374	%ext::player_env::MUSIC_FACE_CACHE = ();
1714		3375
1715	The parameter C<$family> should best start with the name of the extension	3376	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1716	using it, it should be unique.
1717		3377
1718	=over 4	3378	trace "loading facedata from $path\n";
1719		3379
1720	=item $hashref = cf::db_get $family	3380	0 < aio_load $path, my $facedata
		3381	or die "$path: $!";
1721		3382
1722	Return a hashref for use by the extension C<$family>, which can be	3383	$facedata = Coro::Storable::thaw $facedata;
1723	modified. After modifications, you have to call C<cf::db_dirty> or
1724	C<cf::db_sync>.
1725		3384
1726	=item $value = cf::db_get $family => $key	3385	$facedata->{version} == 2
		3386	or cf::cleanup "$path: version mismatch, cannot proceed.";
1727		3387
1728	Returns a single value from the database	3388	# patch in the exptable
1729		3389	my $exp_table = $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]);
1730	=item cf::db_put $family => $hashref	3390	$facedata->{resource}{"res/exp_table"} = {
1731		3391	type => FT_RSRC,
1732	Stores the given family hashref into the database. Updates are delayed, if	3392	data => $exp_table,
1733	you want the data to be synced to disk immediately, use C<cf::db_sync>.	3393	hash => (Digest::MD5::md5 $exp_table),
1734
1735	=item cf::db_put $family => $key => $value
1736
1737	Stores the given C<$value> in the family hash. Updates are delayed, if you
1738	want the data to be synced to disk immediately, use C<cf::db_sync>.
1739
1740	=item cf::db_dirty
1741
1742	Marks the database as dirty, to be updated at a later time.
1743
1744	=item cf::db_sync
1745
1746	Immediately write the database to disk I<if it is dirty>.
1747
1748	=cut
1749
1750	our $DB;
1751
1752	{
1753	my $path = cf::localdir . "/database.pst";
1754
1755	sub db_load() {
1756	warn "loading database $path\n";#d# remove later
1757	$DB = stat $path ? Storable::retrieve $path : { };
1758	}
1759
1760	my $pid;
1761
1762	sub db_save() {
1763	warn "saving database $path\n";#d# remove later
1764	waitpid $pid, 0 if $pid;
1765	if (0 == ($pid = fork)) {
1766	$DB->{_meta}{version} = 1;
1767	Storable::nstore $DB, "$path~";
1768	rename "$path~", $path;
1769	cf::_exit 0 if defined $pid;
1770	}
1771	}
1772
1773	my $dirty;
1774
1775	sub db_sync() {
1776	db_save if $dirty;
1777	undef $dirty;
1778	}
1779
1780	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1781	db_sync;
1782	});	3394	};
		3395	cf::cede_to_tick;
1783		3396
1784	sub db_dirty() {
1785	$dirty = 1;
1786	$idle->start;
1787	}	3397	{
		3398	my $faces = $facedata->{faceinfo};
1788		3399
1789	sub db_get($;$) {	3400	while (my ($face, $info) = each %$faces) {
1790	@_ >= 2	3401	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1791	? $DB->{$_[0]}{$_[1]}
1792	: ($DB->{$_[0]} ||= { })
1793	}
1794		3402
1795	sub db_put($$;$) {	3403	cf::face::set_visibility $idx, $info->{visibility};
1796	if (@_ >= 3) {	3404	cf::face::set_magicmap $idx, $info->{magicmap};
1797	$DB->{$_[0]}{$_[1]} = $_[2];	3405	cf::face::set_data $idx, 0, $info->{data32}, $info->{hash32};
1798	} else {	3406	cf::face::set_data $idx, 1, $info->{data64}, $info->{hash64};
1799	$DB->{$_[0]} = $_[1];
1800	}
1801	db_dirty;
1802	}
1803		3407
1804	cf::global->attach (	3408	cf::cede_to_tick;
1805	prio => 10000,
1806	on_cleanup => sub {
1807	db_sync;
1808	},	3409	}
1809	);
1810	}
1811		3410
1812	#############################################################################	3411	while (my ($face, $info) = each %$faces) {
1813	# the server's main()	3412	next unless $info->{smooth};
1814		3413
1815	sub cfg_load {	3414	my $idx = cf::face::find $face
1816	open my $fh, "<:utf8", cf::confdir . "/config"	3415	or next;
1817	or return;
1818		3416
1819	local $/;	3417	if (my $smooth = cf::face::find $info->{smooth}) {
		3418	cf::face::set_smooth $idx, $smooth;
		3419	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3420	} else {
		3421	error "smooth face '$info->{smooth}' not found for face '$face'";
		3422	}
		3423
		3424	cf::cede_to_tick;
		3425	}
		3426	}
		3427
		3428	{
		3429	my $anims = $facedata->{animinfo};
		3430
		3431	while (my ($anim, $info) = each %$anims) {
		3432	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3433	cf::cede_to_tick;
		3434	}
		3435
		3436	cf::anim::invalidate_all; # d'oh
		3437	}
		3438
		3439	{
		3440	my $res = $facedata->{resource};
		3441
		3442	while (my ($name, $info) = each %$res) {
		3443	if (defined $info->{type}) {
		3444	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3445
		3446	cf::face::set_data $idx, 0, $info->{data}, $info->{hash};
		3447	cf::face::set_type $idx, $info->{type};
		3448	} else {
		3449	$RESOURCE{$name} = $info; # unused
		3450	}
		3451
		3452	cf::cede_to_tick;
		3453	}
		3454	}
		3455
		3456	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3457
		3458	1
		3459	}
		3460
		3461	register_exticmd fx_want => sub {
		3462	my ($ns, $want) = @_;
		3463
		3464	while (my ($k, $v) = each %$want) {
		3465	$ns->fx_want ($k, $v);
		3466	}
		3467	};
		3468
		3469	sub load_resource_file($) {
		3470	my $guard = lock_acquire "load_resource_file";
		3471
		3472	my $status = load_resource_file_ $_[0];
		3473	get_slot 0.1, 100;
		3474	cf::arch::commit_load;
		3475
		3476	$status
		3477	}
		3478
		3479	sub reload_regions {
		3480	# HACK to clear player env face cache, we need some signal framework
		3481	# for this (global event?)
		3482	%ext::player_env::MUSIC_FACE_CACHE = ();
		3483
		3484	load_resource_file "$MAPDIR/regions"
		3485	or die "unable to load regions file\n";
		3486
		3487	for (cf::region::list) {
		3488	$_->{match} = qr/$_->{match}/
		3489	if exists $_->{match};
		3490	}
		3491	}
		3492
		3493	sub reload_facedata {
		3494	load_facedata "$DATADIR/facedata"
		3495	or die "unable to load facedata\n";
		3496	}
		3497
		3498	sub reload_archetypes {
		3499	load_resource_file "$DATADIR/archetypes"
		3500	or die "unable to load archetypes\n";
		3501	}
		3502
		3503	sub reload_treasures {
		3504	load_resource_file "$DATADIR/treasures"
		3505	or die "unable to load treasurelists\n";
		3506	}
		3507
		3508	sub reload_sound {
		3509	trace "loading sound config from $DATADIR/sound\n";
		3510
		3511	0 < Coro::AIO::aio_load "$DATADIR/sound", my $data
		3512	or die "$DATADIR/sound $!";
		3513
		3514	my $soundconf = JSON::XS->new->utf8->relaxed->decode ($data);
		3515
		3516	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3517	my $sound = $soundconf->{compat}[$_]
		3518	or next;
		3519
		3520	my $face = cf::face::find "sound/$sound->[1]";
		3521	cf::sound::set $sound->[0] => $face;
		3522	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3523	}
		3524
		3525	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3526	my $face = cf::face::find "sound/$v";
		3527	cf::sound::set $k => $face;
		3528	}
		3529	}
		3530
		3531	sub reload_resources {
		3532	trace "reloading resource files...\n";
		3533
		3534	reload_exp_table;
		3535	reload_materials;
		3536	reload_facedata;
		3537	reload_sound;
		3538	reload_archetypes;
		3539	reload_regions;
		3540	reload_treasures;
		3541
		3542	trace "finished reloading resource files\n";
		3543	}
		3544
		3545	sub reload_config {
		3546	trace "reloading config file...\n";
		3547
		3548	0 < aio_load "$CONFDIR/config", my $config
		3549	or die "$CONFDIR/config: $!";
		3550
		3551	utf8::decode $config;
		3552
		3553	cf::get_slot 0.1, 10, "reload_config"; # yaml might be slow...
1820	*CFG = YAML::Syck::Load <$fh>;	3554	*CFG = YAML::XS::Load $config;
		3555
		3556	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_104_115", 49, 38];
		3557
		3558	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3559	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3560
		3561	if (exists $CFG{mlockall}) {
		3562	eval {
		3563	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		3564	and die "WARNING: m(un)lockall failed: $!\n";
		3565	};
		3566	warn $@ if $@;
		3567	}
		3568	}
		3569
		3570	sub pidfile() {
		3571	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3572	or die "$PIDFILE: $!";
		3573	flock $fh, &Fcntl::LOCK_EX
		3574	or die "$PIDFILE: flock: $!";
		3575	$fh
		3576	}
		3577
		3578	# make sure only one server instance is running at any one time
		3579	sub atomic {
		3580	my $fh = pidfile;
		3581
		3582	my $pid = <$fh>;
		3583	kill 9, $pid if $pid > 0;
		3584
		3585	seek $fh, 0, 0;
		3586	print $fh $$;
		3587	}
		3588
		3589	sub main_loop {
		3590	trace "EV::loop starting\n";
		3591	if (1) {
		3592	EV::loop;
		3593	}
		3594	trace "EV::loop returned\n";
		3595	goto &main_loop unless $REALLY_UNLOOP;
1821	}	3596	}
1822		3597
1823	sub main {	3598	sub main {
		3599	cf::init_globals; # initialise logging
		3600
		3601	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3602	LOG llevInfo, "Copyright (C) 2005-2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3603	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3604	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3605
		3606	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3607
1824	# we must not ever block the main coroutine	3608	# we must not ever block the main coroutine
1825	local $Coro::idle = sub {	3609	local $Coro::idle = sub {
1826	Carp::cluck "FATAL: Coro::idle was called, major BUG\n";#d#	3610	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1827	(Coro::unblock_sub {	3611	(async {
1828	Event::one_event;	3612	$Coro::current->{desc} = "IDLE BUG HANDLER";
1829	})->();	3613	EV::loop EV::LOOP_ONESHOT;
		3614	})->prio (Coro::PRIO_MAX);
1830	};	3615	};
1831		3616
1832	cfg_load;	3617	evthread_start IO::AIO::poll_fileno;
1833	db_load;	3618
		3619	cf::sync_job {
		3620	cf::incloader::init ();
		3621
		3622	cf::init_anim;
		3623	cf::init_attackmess;
		3624	cf::init_dynamic;
		3625
		3626	cf::load_settings;
		3627
		3628	reload_resources;
		3629	reload_config;
		3630	db_init;
		3631
		3632	cf::init_uuid;
		3633	cf::init_signals;
		3634	cf::init_skills;
		3635
		3636	cf::init_beforeplay;
		3637
		3638	atomic;
		3639
1834	load_extensions;	3640	load_extensions;
1835	Event::loop;	3641
		3642	utime time, time, $RUNTIMEFILE;
		3643
		3644	# no (long-running) fork's whatsoever before this point(!)
		3645	use POSIX ();
		3646	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3647
		3648	(pop @POST_INIT)->(0) while @POST_INIT;
		3649	};
		3650
		3651	cf::object::thawer::errors_are_fatal 0;
		3652	info "parse errors in files are no longer fatal from this point on.\n";
		3653
		3654	my $free_main; $free_main = EV::idle sub {
		3655	undef $free_main;
		3656	undef &main; # free gobs of memory :)
		3657	};
		3658
		3659	goto &main_loop;
1836	}	3660	}
1837		3661
1838	#############################################################################	3662	#############################################################################
1839	# initialisation	3663	# initialisation and cleanup
1840		3664
		3665	# install some emergency cleanup handlers
		3666	BEGIN {
		3667	our %SIGWATCHER = ();
		3668	for my $signal (qw(INT HUP TERM)) {
		3669	$SIGWATCHER{$signal} = AE::signal $signal, sub {
		3670	cf::cleanup "SIG$signal";
		3671	};
		3672	}
		3673	}
		3674
		3675	sub write_runtime_sync {
		3676	my $t0 = AE::time;
		3677
		3678	# first touch the runtime file to show we are still running:
		3679	# the fsync below can take a very very long time.
		3680
		3681	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3682
		3683	my $guard = cf::lock_acquire "write_runtime";
		3684
		3685	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT | O_TRUNC, 0644
		3686	or return;
		3687
		3688	my $value = $cf::RUNTIME + 90 + 10;
		3689	# 10 is the runtime save interval, for a monotonic clock
		3690	# 60 allows for the watchdog to kill the server.
		3691
		3692	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3693	and return;
		3694
		3695	# always fsync - this file is important
		3696	aio_fsync $fh
		3697	and return;
		3698
		3699	# touch it again to show we are up-to-date
		3700	aio_utime $fh, undef, undef;
		3701
		3702	close $fh
		3703	or return;
		3704
		3705	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3706	and return;
		3707
		3708	trace sprintf "runtime file written (%gs).\n", AE::time - $t0;
		3709
		3710	1
		3711	}
		3712
		3713	our $uuid_lock;
		3714	our $uuid_skip;
		3715
		3716	sub write_uuid_sync($) {
		3717	$uuid_skip ||= $_[0];
		3718
		3719	return if $uuid_lock;
		3720	local $uuid_lock = 1;
		3721
		3722	my $uuid = "$LOCALDIR/uuid";
		3723
		3724	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3725	or return;
		3726
		3727	my $value = uuid_seq uuid_cur;
		3728
		3729	unless ($value) {
		3730	info "cowardly refusing to write zero uuid value!\n";
		3731	return;
		3732	}
		3733
		3734	my $value = uuid_str $value + $uuid_skip;
		3735	$uuid_skip = 0;
		3736
		3737	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3738	and return;
		3739
		3740	# always fsync - this file is important
		3741	aio_fsync $fh
		3742	and return;
		3743
		3744	close $fh
		3745	or return;
		3746
		3747	aio_rename "$uuid~", $uuid
		3748	and return;
		3749
		3750	trace "uuid file written ($value).\n";
		3751
		3752	1
		3753
		3754	}
		3755
		3756	sub write_uuid($$) {
		3757	my ($skip, $sync) = @_;
		3758
		3759	$sync ? write_uuid_sync $skip
		3760	: async { write_uuid_sync $skip };
		3761	}
		3762
		3763	sub emergency_save() {
		3764	my $freeze_guard = cf::freeze_mainloop;
		3765
		3766	info "emergency_perl_save: enter\n";
		3767
		3768	# this is a trade-off: we want to be very quick here, so
		3769	# save all maps without fsync, and later call a global sync
		3770	# (which in turn might be very very slow)
		3771	local $USE_FSYNC = 0;
		3772
		3773	cf::sync_job {
		3774	cf::write_runtime_sync; # external watchdog should not bark
		3775
		3776	# use a peculiar iteration method to avoid tripping on perl
		3777	# refcount bugs in for. also avoids problems with players
		3778	# and maps saved/destroyed asynchronously.
		3779	info "emergency_perl_save: begin player save\n";
		3780	for my $login (keys %cf::PLAYER) {
		3781	my $pl = $cf::PLAYER{$login} or next;
		3782	$pl->valid or next;
		3783	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3784	$pl->save;
		3785	}
		3786	info "emergency_perl_save: end player save\n";
		3787
		3788	cf::write_runtime_sync; # external watchdog should not bark
		3789
		3790	info "emergency_perl_save: begin map save\n";
		3791	for my $path (keys %cf::MAP) {
		3792	my $map = $cf::MAP{$path} or next;
		3793	$map->valid or next;
		3794	$map->save;
		3795	}
		3796	info "emergency_perl_save: end map save\n";
		3797
		3798	cf::write_runtime_sync; # external watchdog should not bark
		3799
		3800	info "emergency_perl_save: begin database checkpoint\n";
		3801	BDB::db_env_txn_checkpoint $DB_ENV;
		3802	info "emergency_perl_save: end database checkpoint\n";
		3803
		3804	info "emergency_perl_save: begin write uuid\n";
		3805	write_uuid_sync 1;
		3806	info "emergency_perl_save: end write uuid\n";
		3807
		3808	cf::write_runtime_sync; # external watchdog should not bark
		3809
		3810	trace "emergency_perl_save: syncing database to disk";
		3811	BDB::db_env_txn_checkpoint $DB_ENV;
		3812
		3813	info "emergency_perl_save: starting sync\n";
		3814	IO::AIO::aio_sync sub {
		3815	info "emergency_perl_save: finished sync\n";
		3816	};
		3817
		3818	cf::write_runtime_sync; # external watchdog should not bark
		3819
		3820	trace "emergency_perl_save: flushing outstanding aio requests";
		3821	while (IO::AIO::nreqs || BDB::nreqs) {
		3822	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
		3823	}
		3824
		3825	cf::write_runtime_sync; # external watchdog should not bark
		3826	};
		3827
		3828	info "emergency_perl_save: leave\n";
		3829	}
		3830
		3831	sub post_cleanup {
		3832	my ($make_core) = @_;
		3833
		3834	IO::AIO::flush;
		3835
		3836	error Carp::longmess "post_cleanup backtrace"
		3837	if $make_core;
		3838
		3839	my $fh = pidfile;
		3840	unlink $PIDFILE if <$fh> == $$;
		3841	}
		3842
		3843	# a safer delete_package, copied from Symbol
		3844	sub clear_package($) {
		3845	my $pkg = shift;
		3846
		3847	# expand to full symbol table name if needed
		3848	unless ($pkg =~ /^main::.*::$/) {
		3849	$pkg = "main$pkg" if $pkg =~ /^::/;
		3850	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3851	$pkg .= '::' unless $pkg =~ /::$/;
		3852	}
		3853
		3854	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3855	my $stem_symtab = *{$stem}{HASH};
		3856
		3857	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3858	or return;
		3859
		3860	# clear all symbols
		3861	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3862	for my $name (keys %$leaf_symtab) {
		3863	_gv_clear *{"$pkg$name"};
		3864	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3865	}
		3866	}
		3867
1841	sub reload() {	3868	sub do_reload_perl() {
1842	# can/must only be called in main	3869	# can/must only be called in main
1843	if ($Coro::current != $Coro::main) {	3870	unless (in_main) {
1844	warn "can only reload from main coroutine\n";	3871	error "can only reload from main coroutine";
1845	return;	3872	return;
1846	}	3873	}
1847		3874
		3875	return if $RELOAD++;
		3876
		3877	my $t1 = AE::time;
		3878
		3879	while ($RELOAD) {
		3880	cf::get_slot 0.1, -1, "reload_perl";
1848	warn "reloading...";	3881	info "reloading...";
1849		3882
1850	local $FREEZE = 1;	3883	trace "entering sync_job";
		3884
		3885	cf::sync_job {
1851	cf::emergency_save;	3886	#cf::emergency_save;
1852		3887
1853	eval {
1854	# if anything goes wrong in here, we should simply crash as we already saved
1855
1856	# cancel all watchers
1857	for (Event::all_watchers) {
1858	$_->cancel if $_->data & WF_AUTOCANCEL;
1859	}
1860
1861	# cancel all extension coros	3888	trace "cancelling all extension coros";
1862	$_->cancel for values %EXT_CORO;	3889	$_->cancel for values %EXT_CORO;
1863	%EXT_CORO = ();	3890	%EXT_CORO = ();
1864		3891
1865	# unload all extensions	3892	trace "removing commands";
1866	for (@exts) {	3893	%COMMAND = ();
1867	warn "unloading <$_>";
1868	unload_extension $_;
1869	}
1870		3894
1871	# unload all modules loaded from $LIBDIR	3895	trace "removing ext/exti commands";
1872	while (my ($k, $v) = each %INC) {	3896	%EXTCMD = ();
1873	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3897	%EXTICMD = ();
1874		3898
1875	warn "removing <$k>";	3899	trace "unloading/nuking all extensions";
1876	delete $INC{$k};	3900	for my $pkg (@EXTS) {
		3901	trace "... unloading $pkg";
1877		3902
1878	$k =~ s/\.pm$//;
1879	$k =~ s/\//::/g;
1880
1881	if (my $cb = $k->can ("unload_module")) {	3903	if (my $cb = $pkg->can ("unload")) {
		3904	eval {
1882	$cb->();	3905	$cb->($pkg);
		3906	1
		3907	} or error "$pkg unloaded, but with errors: $@";
		3908	}
		3909
		3910	trace "... clearing $pkg";
		3911	clear_package $pkg;
1883	}	3912	}
1884		3913
1885	Symbol::delete_package $k;	3914	trace "unloading all perl modules loaded from $LIBDIR";
		3915	while (my ($k, $v) = each %INC) {
		3916	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3917
		3918	trace "... unloading $k";
		3919	delete $INC{$k};
		3920
		3921	$k =~ s/\.pm$//;
		3922	$k =~ s/\//::/g;
		3923
		3924	if (my $cb = $k->can ("unload_module")) {
		3925	$cb->();
		3926	}
		3927
		3928	clear_package $k;
1886	}	3929	}
1887		3930
1888	# sync database to disk
1889	cf::db_sync;
1890	IO::AIO::flush;
1891
1892	# get rid of safe::, as good as possible	3931	trace "getting rid of safe::, as good as possible";
1893	Symbol::delete_package "safe::$_"	3932	clear_package "safe::$_"
1894	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3933	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
1895		3934
1896	# remove register_script_function callbacks	3935	trace "unloading cf.pm \"a bit\"";
1897	# TODO
1898
1899	# unload cf.pm "a bit"
1900	delete $INC{"cf.pm"};	3936	delete $INC{"cf.pm"};
		3937	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
1901		3938
1902	# don't, removes xs symbols, too,	3939	# don't, removes xs symbols, too,
1903	# and global variables created in xs	3940	# and global variables created in xs
1904	#Symbol::delete_package __PACKAGE__;	3941	#clear_package __PACKAGE__;
1905		3942
1906	# reload cf.pm	3943	info "unload completed, starting to reload now";
		3944
1907	warn "reloading cf.pm";	3945	trace "reloading cf.pm";
1908	require cf;	3946	require cf;
1909	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3947	cf::_connect_to_perl_1;
1910		3948
1911	# load config and database again	3949	trace "loading config and database again";
1912	cf::cfg_load;	3950	cf::reload_config;
1913	cf::db_load;
1914		3951
1915	# load extensions
1916	warn "load extensions";	3952	trace "loading extensions";
1917	cf::load_extensions;	3953	cf::load_extensions;
1918		3954
1919	# reattach attachments to objects	3955	if ($REATTACH_ON_RELOAD) {
1920	warn "reattach";	3956	trace "reattaching attachments to objects/players";
1921	_global_reattach;	3957	_global_reattach; # objects, sockets
		3958	trace "reattaching attachments to maps";
		3959	reattach $_ for values %MAP;
		3960	trace "reattaching attachments to players";
		3961	reattach $_ for values %PLAYER;
		3962	}
		3963
		3964	trace "running post_init jobs";
		3965	(pop @POST_INIT)->(1) while @POST_INIT;
		3966
		3967	trace "leaving sync_job";
		3968
		3969	1
		3970	} or do {
		3971	error $@;
		3972	cf::cleanup "error while reloading, exiting.";
		3973	};
		3974
		3975	info "reloaded";
		3976	--$RELOAD;
		3977	}
		3978
		3979	$t1 = AE::time - $t1;
		3980	info "reload completed in ${t1}s\n";
		3981	};
		3982
		3983	our $RELOAD_WATCHER; # used only during reload
		3984
		3985	sub reload_perl() {
		3986	# doing reload synchronously and two reloads happen back-to-back,
		3987	# coro crashes during coro_state_free->destroy here.
		3988
		3989	$RELOAD_WATCHER ||= cf::async {
		3990	Coro::AIO::aio_wait cache_extensions;
		3991
		3992	$RELOAD_WATCHER = AE::timer $TICK * 1.5, 0, sub {
		3993	do_reload_perl;
		3994	undef $RELOAD_WATCHER;
		3995	};
1922	};	3996	};
1923
1924	if ($@) {
1925	warn $@;
1926	warn "error while reloading, exiting.";
1927	exit 1;
1928	}
1929
1930	warn "reloaded successfully";
1931	};
1932
1933	#############################################################################
1934
1935	unless ($LINK_MAP) {
1936	$LINK_MAP = cf::map::new;
1937
1938	$LINK_MAP->width (41);
1939	$LINK_MAP->height (41);
1940	$LINK_MAP->alloc;
1941	$LINK_MAP->path ("{link}");
1942	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
1943	$LINK_MAP->in_memory (MAP_IN_MEMORY);
1944
1945	# dirty hack because... archetypes are not yet loaded
1946	Event->timer (
1947	after => 2,
1948	cb => sub {
1949	$_[0]->w->cancel;
1950
1951	# provide some exits "home"
1952	my $exit = cf::object::new "exit";
1953
1954	$exit->slaying ($EMERGENCY_POSITION->[0]);
1955	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
1956	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
1957
1958	$LINK_MAP->insert ($exit->clone, 19, 19);
1959	$LINK_MAP->insert ($exit->clone, 19, 20);
1960	$LINK_MAP->insert ($exit->clone, 19, 21);
1961	$LINK_MAP->insert ($exit->clone, 20, 19);
1962	$LINK_MAP->insert ($exit->clone, 20, 21);
1963	$LINK_MAP->insert ($exit->clone, 21, 19);
1964	$LINK_MAP->insert ($exit->clone, 21, 20);
1965	$LINK_MAP->insert ($exit->clone, 21, 21);
1966
1967	$exit->destroy;
1968	});
1969
1970	$LINK_MAP->{deny_save} = 1;
1971	$LINK_MAP->{deny_reset} = 1;
1972
1973	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
1974	}	3997	}
1975
1976	register "<global>", __PACKAGE__;
1977		3998
1978	register_command "reload" => sub {	3999	register_command "reload" => sub {
1979	my ($who, $arg) = @_;	4000	my ($who, $arg) = @_;
1980		4001
1981	if ($who->flag (FLAG_WIZ)) {	4002	if ($who->flag (FLAG_WIZ)) {
1982	$who->message ("start of reload.");
1983	reload;
1984	$who->message ("end of reload.");	4003	$who->message ("reloading server.");
		4004	async {
		4005	$Coro::current->{desc} = "perl_reload";
		4006	reload_perl;
		4007	};
1985	}	4008	}
1986	};	4009	};
1987		4010
1988	unshift @INC, $LIBDIR;	4011	#############################################################################
1989		4012
1990	$TICK_WATCHER = Event->timer (	4013	my $bug_warning = 0;
1991	reentrant => 0,	4014
1992	prio => 0,	4015	our @WAIT_FOR_TICK;
1993	at => $NEXT_TICK || $TICK,	4016	our @WAIT_FOR_TICK_BEGIN;
1994	data => WF_AUTOCANCEL,	4017
1995	cb => sub {	4018	sub wait_for_tick() {
1996	unless ($FREEZE) {	4019	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4020
		4021	my $signal = new Coro::Signal;
		4022	push @WAIT_FOR_TICK, $signal;
		4023	$signal->wait;
		4024	}
		4025
		4026	sub wait_for_tick_begin() {
		4027	return Coro::cede if tick_inhibit || $Coro::current == $Coro::main;
		4028
		4029	my $signal = new Coro::Signal;
		4030	push @WAIT_FOR_TICK_BEGIN, $signal;
		4031	$signal->wait;
		4032	}
		4033
		4034	sub tick {
		4035	if ($Coro::current != $Coro::main) {
		4036	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		4037	unless ++$bug_warning > 10;
		4038	return;
		4039	}
		4040
1997	cf::server_tick; # one server iteration	4041	cf::server_tick; # one server iteration
1998	$RUNTIME += $TICK;
1999	}
2000		4042
2001	$NEXT_TICK += $TICK;	4043	#for(1..3e6){} AE::now_update; $NOW=AE::now; # generate load #d#
2002		4044
2003	# if we are delayed by four ticks or more, skip them all	4045	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2004	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	4046	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2005		4047	Coro::async_pool {
2006	$TICK_WATCHER->at ($NEXT_TICK);	4048	$Coro::current->{desc} = "runtime saver";
2007	$TICK_WATCHER->start;
2008	},
2009	);
2010
2011	IO::AIO::max_poll_time $TICK * 0.2;
2012
2013	Event->io (
2014	fd => IO::AIO::poll_fileno,
2015	poll => 'r',
2016	prio => 5,
2017	data => WF_AUTOCANCEL,
2018	cb => \&IO::AIO::poll_cb,
2019	);
2020
2021	Event->timer (
2022	data => WF_AUTOCANCEL,
2023	after => 0,
2024	interval => 10,
2025	cb => sub {
2026	(Coro::unblock_sub {
2027	write_runtime	4049	write_runtime_sync
2028	or warn "ERROR: unable to write runtime file: $!";	4050	or error "ERROR: unable to write runtime file: $!";
2029	})->();	4051	};
2030	},	4052	}
2031	);	4053
		4054	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		4055	$sig->send;
		4056	}
		4057	while (my $sig = shift @WAIT_FOR_TICK) {
		4058	$sig->send;
		4059	}
		4060
		4061	$LOAD = ($NOW - $TICK_START) / $TICK;
		4062	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		4063
		4064	if (0) {
		4065	if ($NEXT_TICK) {
		4066	my $jitter = $TICK_START - $NEXT_TICK;
		4067	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		4068	debug "jitter $JITTER\n";#d#
		4069	}
		4070	}
		4071	}
		4072
		4073	{
		4074	# configure BDB
		4075
		4076	BDB::min_parallel 16;
		4077	BDB::max_poll_reqs $TICK * 0.1;
		4078	$AnyEvent::BDB::WATCHER->priority (1);
		4079
		4080	unless ($DB_ENV) {
		4081	$DB_ENV = BDB::db_env_create;
		4082	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		4083	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		4084	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		4085	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		4086	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		4087
		4088	cf::sync_job {
		4089	eval {
		4090	BDB::db_env_open
		4091	$DB_ENV,
		4092	$BDBDIR,
		4093	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		4094	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		4095	0666;
		4096
		4097	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		4098	};
		4099
		4100	cf::cleanup "db_env_open(db): $@" if $@;
		4101	};
		4102	}
		4103
		4104	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		4105	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		4106	};
		4107	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		4108	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		4109	};
		4110	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		4111	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		4112	};
		4113	}
		4114
		4115	{
		4116	# configure IO::AIO
		4117
		4118	IO::AIO::min_parallel 8;
		4119	IO::AIO::max_poll_time $TICK * 0.1;
		4120	undef $AnyEvent::AIO::WATCHER;
		4121	}
		4122
		4123	my $_log_backtrace;
		4124
		4125	sub _log_backtrace {
		4126	my ($msg, @addr) = @_;
		4127
		4128	$msg =~ s/\n//;
		4129
		4130	# limit the # of concurrent backtraces
		4131	if ($_log_backtrace < 2) {
		4132	++$_log_backtrace;
		4133	my $perl_bt = Carp::longmess $msg;
		4134	async {
		4135	$Coro::current->{desc} = "abt $msg";
		4136
		4137	my @bt = fork_call {
		4138	@addr = map { sprintf "%x", $_ } @addr;
		4139	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		4140	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		4141	or die "addr2line: $!";
		4142
		4143	my @funcs;
		4144	my @res = <$fh>;
		4145	chomp for @res;
		4146	while (@res) {
		4147	my ($func, $line) = splice @res, 0, 2, ();
		4148	push @funcs, "[$func] $line";
		4149	}
		4150
		4151	@funcs
		4152	};
		4153
		4154	LOG llevInfo, "[ABT] $perl_bt\n";
		4155	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		4156	LOG llevInfo, "[ABT] $_\n" for @bt;
		4157	--$_log_backtrace;
		4158	};
		4159	} else {
		4160	LOG llevInfo, "[ABT] $msg\n";
		4161	LOG llevInfo, "[ABT] [suppressed]\n";
		4162	}
		4163	}
		4164
		4165	# load additional modules
		4166	require "cf/$_.pm" for @EXTRA_MODULES;
		4167	cf::_connect_to_perl_2;
		4168
		4169	END { cf::emergency_save }
2032		4170
2033	1	4171	1
2034		4172

Diff Legend

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