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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.136 by root, Fri Jan 5 01:06:28 2007 UTC vs.
Revision 1.477 by root, Wed Sep 2 22:52:36 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your 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 GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
		24	use 5.10.0;
3	use utf8;	25	use utf8;
4	use strict;	26	use strict qw(vars subs);
5		27
6	use Symbol;	28	use Symbol;
7	use List::Util;	29	use List::Util;
8	use Storable;	30	use Socket;
		31	use EV;
9	use Opcode;	32	use Opcode;
10	use Safe;	33	use Safe;
11	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
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
		53	use JSON::XS 2.01 ();
		54	use BDB ();
		55	use Data::Dumper;
20	use Digest::MD5;	56	use Digest::MD5;
21	use Fcntl;	57	use Fcntl;
		58	use YAML ();
22	use IO::AIO 2.31 ();	59	use IO::AIO ();
23	use YAML::Syck ();
24	use Time::HiRes;	60	use Time::HiRes;
		61	use Compress::LZF;
		62	use Digest::MD5 ();
25		63
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	64	AnyEvent::detect;
27		65
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	66	# configure various modules to our taste
29	$YAML::Syck::ImplicitUnicode = 1;	67	#
		68	$Storable::canonical = 1; # reduce rsync transfers
		69	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
30		70
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	71	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		72
		73	# make sure c-lzf reinitialises itself
		74	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		75	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		76
		77	# strictly for debugging
		78	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
32		79
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	80	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		81
35	our %COMMAND = ();	82	our %COMMAND = ();
36	our %COMMAND_TIME = ();	83	our %COMMAND_TIME = ();
		84
		85	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	86	our %EXTCMD = ();
		87	our %EXTICMD = ();
		88	our %EXT_CORO = (); # coroutines bound to extensions
		89	our %EXT_MAP = (); # pluggable maps
38		90
		91	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	92	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		93
42	our $TICK = MAX_TIME * 1e-6;	94	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	95	our $DATADIR = datadir;
		96	our $LIBDIR = "$DATADIR/ext";
		97	our $PODDIR = "$DATADIR/pod";
		98	our $MAPDIR = "$DATADIR/" . mapdir;
		99	our $LOCALDIR = localdir;
		100	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		101	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		102	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		103	our $RANDOMDIR = "$LOCALDIR/random";
		104	our $BDBDIR = "$LOCALDIR/db";
		105	our $PIDFILE = "$LOCALDIR/pid";
		106	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		107
		108	our %RESOURCE;
		109
		110	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		111	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	112	our $NEXT_TICK;
45	our $NOW;	113	our $USE_FSYNC = 1; # use fsync to write maps - default on
		114
		115	our $BDB_DEADLOCK_WATCHER;
		116	our $BDB_CHECKPOINT_WATCHER;
		117	our $BDB_TRICKLE_WATCHER;
		118	our $DB_ENV;
		119
		120	our @EXTRA_MODULES = qw(pod mapscript);
46		121
47	our %CFG;	122	our %CFG;
48		123
49	our $UPTIME; $UPTIME ||= time;	124	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	125	our $RUNTIME;
		126	our $NOW;
51		127
52	our %MAP; # all maps	128	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	129	our (%MAP, %MAP_LOADING ); # all maps
54	our $RANDOM_MAPS = cf::localdir . "/random";	130	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	131
		132	# used to convert map paths into valid unix filenames by replacing / by ∕
		133	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		134
		135	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		136	our $LOADAVG; # same thing, but with alpha-smoothing
		137	our $JITTER; # average jitter
		138	our $TICK_START; # for load detecting purposes
		139
		140	our @POST_INIT;
		141
		142	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		143	our $REALLY_UNLOOP; # never set to true, please :)
56		144
57	binmode STDOUT;	145	binmode STDOUT;
58	binmode STDERR;	146	binmode STDERR;
59		147
60	# read virtual server time, if available	148	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	149	unless ($RUNTIME || !-e $RUNTIMEFILE) {
62	open my $fh, "<", cf::localdir . "/runtime"	150	open my $fh, "<", $RUNTIMEFILE
63	or die "unable to read runtime file: $!";	151	or die "unable to read $RUNTIMEFILE file: $!";
64	$RUNTIME = <$fh> + 0.;	152	$RUNTIME = <$fh> + 0.;
65	}	153	}
66		154
67	mkdir cf::localdir;	155	eval "sub TICK() { $TICK } 1" or die;
68	mkdir cf::localdir . "/" . cf::playerdir;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		156
73	# a special map that is always available	157	mkdir $_
74	our $LINK_MAP;	158	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
		159
75	our $EMERGENCY_POSITION;	160	our $EMERGENCY_POSITION;
		161
		162	sub cf::map::normalise;
76		163
77	#############################################################################	164	#############################################################################
78		165
79	=head2 GLOBAL VARIABLES	166	=head2 GLOBAL VARIABLES
80		167
…		…
87	=item $cf::RUNTIME	174	=item $cf::RUNTIME
88		175
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	176	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	177	every server tick.
91		178
92	=item $cf::LIBDIR	179	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		180	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		181	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		182
94	The perl library directory, where extensions and cf-specific modules can	183	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	184	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		185	unique-items directory, player file directory, random maps directory and
		186	database environment.
96		187
97	=item $cf::NOW	188	=item $cf::NOW
98		189
99	The time of the last (current) server tick.	190	The time of the last (current) server tick.
100		191
101	=item $cf::TICK	192	=item $cf::TICK
102		193
103	The interval between server ticks, in seconds.	194	The interval between server ticks, in seconds.
104		195
		196	=item $cf::LOADAVG
		197
		198	The current CPU load on the server (alpha-smoothed), as a value between 0
		199	(none) and 1 (overloaded), indicating how much time is spent on processing
		200	objects per tick. Healthy values are < 0.5.
		201
		202	=item $cf::LOAD
		203
		204	The raw value load value from the last tick.
		205
105	=item %cf::CFG	206	=item %cf::CFG
106		207
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	208	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
108	from wherever your confdir points to.	209	from wherever your confdir points to.
109		210
		211	=item cf::wait_for_tick, cf::wait_for_tick_begin
		212
		213	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		214	returns directly I<after> the tick processing (and consequently, can only wake one process
		215	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		216
		217	=item @cf::INVOKE_RESULTS
		218
		219	This array contains the results of the last C<invoke ()> call. When
		220	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		221	that call.
		222
110	=back	223	=back
111		224
112	=cut	225	=cut
113		226
114	BEGIN {	227	$Coro::State::WARNHOOK = sub {
115	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	228	my $msg = join "", @_;
117	utf8::encode $msg;
118		229
119	$msg .= "\n"	230	$msg .= "\n"
120	unless $msg =~ /\n$/;	231	unless $msg =~ /\n$/;
121		232
		233	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		234
122	LOG llevError, "cfperl: $msg";	235	LOG llevError, $msg;
123	};	236	};
124	}	237
		238	$Coro::State::DIEHOOK = sub {
		239	return unless $^S eq 0; # "eq", not "=="
		240
		241	warn Carp::longmess $_[0];
		242
		243	if ($Coro::current == $Coro::main) {#d#
		244	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		245	return;#d#
		246	}#d#
		247
		248	# kill coroutine otherwise
		249	Coro::terminate
		250	};
125		251
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	252	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	253	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	254	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	255	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	256	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		257	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	258	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		259
133	# we bless all objects into (empty) derived classes to force a method lookup	260	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	261	# within the Safe compartment.
135	for my $pkg (qw(	262	for my $pkg (qw(
136	cf::global cf::attachable	263	cf::global cf::attachable
137	cf::object cf::object::player	264	cf::object cf::object::player
138	cf::client cf::player	265	cf::client cf::player
139	cf::arch cf::living	266	cf::arch cf::living
		267	cf::map cf::mapspace
140	cf::map cf::party cf::region	268	cf::party cf::region
141	)) {	269	)) {
142	no strict 'refs';
143	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	270	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
144	}	271	}
145		272
146	$Event::DIED = sub {	273	$EV::DIED = sub {
147	warn "error in event callback: @_";	274	warn "error in event callback: @_";
148	};	275	};
149		276
150	my %ext_pkg;	277	#############################################################################
151	my @exts;
152	my @hook;
153		278
154	=head2 UTILITY FUNCTIONS	279	=head2 UTILITY FUNCTIONS
155		280
156	=over 4	281	=over 4
157		282
158	=cut	283	=item dumpval $ref
159		284
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	285	=cut
161		286
		287	sub dumpval {
		288	eval {
		289	local $SIG{__DIE__};
		290	my $d;
		291	if (1) {
		292	$d = new Data::Dumper([$_[0]], ["*var"]);
		293	$d->Terse(1);
		294	$d->Indent(2);
		295	$d->Quotekeys(0);
		296	$d->Useqq(1);
		297	#$d->Bless(...);
		298	$d->Seen($_[1]) if @_ > 1;
		299	$d = $d->Dump();
		300	}
		301	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		302	$d
		303	} || "[unable to dump $_[0]: '$@']";
		304	}
		305
162	=item $ref = cf::from_json $json	306	=item $ref = cf::decode_json $json
163		307
164	Converts a JSON string into the corresponding perl data structure.	308	Converts a JSON string into the corresponding perl data structure.
165		309
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	310	=item $json = cf::encode_json $ref
174		311
175	Converts a perl data structure into its JSON representation.	312	Converts a perl data structure into its JSON representation.
176		313
177	=cut	314	=cut
178		315
179	sub to_json($) {	316	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	317
181	JSON::Syck::Dump $_[0]	318	sub encode_json($) { $json_coder->encode ($_[0]) }
		319	sub decode_json($) { $json_coder->decode ($_[0]) }
		320
		321	=item cf::post_init { BLOCK }
		322
		323	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		324	but I<before> the server starts ticking again.
		325
		326	The cdoeblock will have a single boolean argument to indicate whether this
		327	is a reload or not.
		328
		329	=cut
		330
		331	sub post_init(&) {
		332	push @POST_INIT, shift;
182	}	333	}
183		334
184	=item cf::lock_wait $string	335	=item cf::lock_wait $string
185		336
186	Wait until the given lock is available. See cf::lock_acquire.	337	Wait until the given lock is available. See cf::lock_acquire.
187		338
188	=item my $lock = cf::lock_acquire $string	339	=item my $lock = cf::lock_acquire $string
189		340
190	Wait until the given lock is available and then acquires it and returns	341	Wait until the given lock is available and then acquires it and returns
191	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	342	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
192	for example when the coroutine gets canceled), the lock is automatically	343	for example when the coroutine gets canceled), the lock is automatically
193	returned.	344	returned.
194		345
		346	Locks are *not* recursive, locking from the same coro twice results in a
		347	deadlocked coro.
		348
195	Lock names should begin with a unique identifier (for example, cf::map::find	349	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	350	uses map_find and cf::map::load uses map_load).
197		351
198	=cut	352	=item $locked = cf::lock_active $string
199		353
200	our %LOCK;	354	Return true if the lock is currently active, i.e. somebody has locked it.
		355
		356	=cut
		357
		358	our $LOCKS = new Coro::SemaphoreSet;
201		359
202	sub lock_wait($) {	360	sub lock_wait($) {
203	my ($key) = @_;	361	$LOCKS->wait ($_[0]);
204
205	# wait for lock, if any
206	while ($LOCK{$key}) {
207	push @{ $LOCK{$key} }, $Coro::current;
208	Coro::schedule;
209	}
210	}	362	}
211		363
212	sub lock_acquire($) {	364	sub lock_acquire($) {
213	my ($key) = @_;	365	$LOCKS->guard ($_[0])
		366	}
214		367
215	# wait, to be sure we are not locked	368	sub lock_active($) {
216	lock_wait $key;	369	$LOCKS->count ($_[0]) < 1
		370	}
217		371
218	$LOCK{$key} = [];	372	sub freeze_mainloop {
		373	tick_inhibit_inc;
219		374
220	Coro::guard {	375	&Guard::guard (\&tick_inhibit_dec);
221	# wake up all waiters, to be on the safe side	376	}
222	$_->ready for @{ delete $LOCK{$key} };	377
		378	=item cf::periodic $interval, $cb
		379
		380	Like EV::periodic, but randomly selects a starting point so that the actions
		381	get spread over timer.
		382
		383	=cut
		384
		385	sub periodic($$) {
		386	my ($interval, $cb) = @_;
		387
		388	my $start = rand List::Util::min 180, $interval;
		389
		390	EV::periodic $start, $interval, 0, $cb
		391	}
		392
		393	=item cf::get_slot $time[, $priority[, $name]]
		394
		395	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		396	This call blocks and returns only when you have at least C<$time> seconds
		397	of cpu time till the next tick. The slot is only valid till the next cede.
		398
		399	The optional C<$name> can be used to identify the job to run. It might be
		400	used for statistical purposes and should identify the same time-class.
		401
		402	Useful for short background jobs.
		403
		404	=cut
		405
		406	our @SLOT_QUEUE;
		407	our $SLOT_QUEUE;
		408
		409	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		410	$SLOT_QUEUE = Coro::async {
		411	$Coro::current->desc ("timeslot manager");
		412
		413	my $signal = new Coro::Signal;
		414
		415	while () {
		416	next_job:
		417	my $avail = cf::till_tick;
		418	if ($avail > 0.01) {
		419	for (0 .. $#SLOT_QUEUE) {
		420	if ($SLOT_QUEUE[$_][0] < $avail) {
		421	my $job = splice @SLOT_QUEUE, $_, 1, ();
		422	$job->[2]->send;
		423	Coro::cede;
		424	goto next_job;
		425	}
		426	}
		427	}
		428
		429	if (@SLOT_QUEUE) {
		430	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		431	push @cf::WAIT_FOR_TICK, $signal;
		432	$signal->wait;
		433	} else {
		434	Coro::schedule;
		435	}
223	}	436	}
		437	};
		438
		439	sub get_slot($;$$) {
		440	return if tick_inhibit || $Coro::current == $Coro::main;
		441
		442	my ($time, $pri, $name) = @_;
		443
		444	$time = $TICK * .6 if $time > $TICK * .6;
		445	my $sig = new Coro::Signal;
		446
		447	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		448	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		449	$SLOT_QUEUE->ready;
		450	$sig->wait;
224	}	451	}
225		452
226	=item cf::async { BLOCK }	453	=item cf::async { BLOCK }
227		454
228	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	455	Currently the same as Coro::async_pool, meaning you cannot use
229	error instead of exiting the server in case of a problem.	456	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		457	thing you are allowed to do is call C<prio> on it.
230		458
231	=cut	459	=cut
232		460
233	sub async(&) {	461	BEGIN { *async = \&Coro::async_pool }
234	my ($cb) = @_;
235
236	Coro::async {
237	eval { $cb->() };
238	warn $@ if $@;
239	}
240	}
241
242	sub freeze_mainloop {
243	return unless $TICK_WATCHER->is_active;
244
245	my $guard = Coro::guard { $TICK_WATCHER->start };
246	$TICK_WATCHER->stop;
247	$guard
248	}
249		462
250	=item cf::sync_job { BLOCK }	463	=item cf::sync_job { BLOCK }
251		464
252	The design of crossfire+ requires that the main coro ($Coro::main) is	465	The design of Deliantra requires that the main coroutine ($Coro::main)
253	always able to handle events or runnable, as crossfire+ is only partly	466	is always able to handle events or runnable, as Deliantra is only
254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	467	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		468	acceptable.
255		469
256	If it must be done, put the blocking parts into C<sync_job>. This will run	470	If it must be done, put the blocking parts into C<sync_job>. This will run
257	the given BLOCK in another coroutine while waiting for the result. The	471	the given BLOCK in another coroutine while waiting for the result. The
258	server will be frozen during this time, so the block should either finish	472	server will be frozen during this time, so the block should either finish
259	fast or be very important.	473	fast or be very important.
…		…
262		476
263	sub sync_job(&) {	477	sub sync_job(&) {
264	my ($job) = @_;	478	my ($job) = @_;
265		479
266	if ($Coro::current == $Coro::main) {	480	if ($Coro::current == $Coro::main) {
		481	my $time = EV::time;
		482
267	# this is the main coro, too bad, we have to block	483	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	484	# till the operation succeeds, freezing the server :/
269		485
270	# TODO: use suspend/resume instead	486	LOG llevError, Carp::longmess "sync job";#d#
271	# (but this is cancel-safe)	487
272	my $freeze_guard = freeze_mainloop;	488	my $freeze_guard = freeze_mainloop;
273		489
274	my $busy = 1;	490	my $busy = 1;
275	my @res;	491	my @res;
276		492
277	(Coro::async {	493	(async {
		494	$Coro::current->desc ("sync job coro");
278	@res = eval { $job->() };	495	@res = eval { $job->() };
279	warn $@ if $@;	496	warn $@ if $@;
280	undef $busy;	497	undef $busy;
281	})->prio (Coro::PRIO_MAX);	498	})->prio (Coro::PRIO_MAX);
282		499
283	while ($busy) {	500	while ($busy) {
		501	if (Coro::nready) {
284	Coro::cede_notself;	502	Coro::cede_notself;
285	Event::one_event unless Coro::nready;	503	} else {
		504	EV::loop EV::LOOP_ONESHOT;
286	}	505	}
		506	}
		507
		508	my $time = EV::time - $time;
		509
		510	$TICK_START += $time; # do not account sync jobs to server load
287		511
288	wantarray ? @res : $res[0]	512	wantarray ? @res : $res[0]
289	} else {	513	} else {
290	# we are in another coroutine, how wonderful, everything just works	514	# we are in another coroutine, how wonderful, everything just works
291		515
292	$job->()	516	$job->()
293	}	517	}
294	}	518	}
295		519
296	=item $coro = cf::coro { BLOCK }	520	=item $coro = cf::async_ext { BLOCK }
297		521
298	Creates and returns a new coro. This coro is automcatially being canceled	522	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	523	extension calling this is being unloaded.
300		524
301	=cut	525	=cut
302		526
303	sub coro(&) {	527	sub async_ext(&) {
304	my $cb = shift;	528	my $cb = shift;
305		529
306	my $coro = &cf::async ($cb);	530	my $coro = &Coro::async ($cb);
307		531
308	$coro->on_destroy (sub {	532	$coro->on_destroy (sub {
309	delete $EXT_CORO{$coro+0};	533	delete $EXT_CORO{$coro+0};
310	});	534	});
311	$EXT_CORO{$coro+0} = $coro;	535	$EXT_CORO{$coro+0} = $coro;
312		536
313	$coro	537	$coro
314	}	538	}
315		539
316	sub write_runtime {	540	=item fork_call { }, $args
317	my $runtime = cf::localdir . "/runtime";
318		541
319	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	542	Executes the given code block with the given arguments in a seperate
320	or return;	543	process, returning the results. Everything must be serialisable with
		544	Coro::Storable. May, of course, block. Note that the executed sub may
		545	never block itself or use any form of event handling.
321		546
322	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	547	=cut
323	(aio_write $fh, 0, (length $value), $value, 0) <= 0
324	and return;
325		548
326	aio_fsync $fh	549	sub fork_call(&@) {
327	and return;	550	my ($cb, @args) = @_;
328		551
329	close $fh	552	# we seemingly have to make a local copy of the whole thing,
330	or return;	553	# otherwise perl prematurely frees the stuff :/
		554	# TODO: investigate and fix (likely this will be rather laborious)
331		555
332	aio_rename "$runtime~", $runtime	556	my @res = Coro::Util::fork_eval {
333	and return;	557	reset_signals;
		558	&$cb
		559	}, @args;
334		560
		561	wantarray ? @res : $res[-1]
		562	}
		563
		564	=item $coin = coin_from_name $name
		565
		566	=cut
		567
		568	our %coin_alias = (
		569	"silver" => "silvercoin",
		570	"silvercoin" => "silvercoin",
		571	"silvercoins" => "silvercoin",
		572	"gold" => "goldcoin",
		573	"goldcoin" => "goldcoin",
		574	"goldcoins" => "goldcoin",
		575	"platinum" => "platinacoin",
		576	"platinumcoin" => "platinacoin",
		577	"platinumcoins" => "platinacoin",
		578	"platina" => "platinacoin",
		579	"platinacoin" => "platinacoin",
		580	"platinacoins" => "platinacoin",
		581	"royalty" => "royalty",
		582	"royalties" => "royalty",
		583	);
		584
		585	sub coin_from_name($) {
		586	$coin_alias{$_[0]}
		587	? cf::arch::find $coin_alias{$_[0]}
		588	: undef
		589	}
		590
		591	=item $value = cf::db_get $family => $key
		592
		593	Returns a single value from the environment database.
		594
		595	=item cf::db_put $family => $key => $value
		596
		597	Stores the given C<$value> in the family. It can currently store binary
		598	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		599
		600	=item $db = cf::db_table "name"
		601
		602	Create and/or open a new database table. The string must not be "db" and must be unique
		603	within each server.
		604
		605	=cut
		606
		607	sub db_table($) {
		608	my ($name) = @_;
		609	my $db = BDB::db_create $DB_ENV;
		610
		611	eval {
		612	$db->set_flags (BDB::CHKSUM);
		613
		614	utf8::encode $name;
		615	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		616	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		617	cf::cleanup "db_open(db): $!" if $!;
		618	};
		619	cf::cleanup "db_open(db): $@" if $@;
		620
		621	$db
		622	}
		623
		624	our $DB;
		625
		626	sub db_init {
		627	cf::sync_job {
		628	$DB ||= db_table "db";
		629	};
		630	}
		631
		632	sub db_get($$) {
		633	my $key = "$_[0]/$_[1]";
		634
		635	cf::sync_job {
		636	BDB::db_get $DB, undef, $key, my $data;
		637
		638	$! ? ()
		639	: $data
335	1	640	}
		641	}
		642
		643	sub db_put($$$) {
		644	BDB::dbreq_pri 4;
		645	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		646	}
		647
		648	=item cf::cache $id => [$paths...], $processversion => $process
		649
		650	Generic caching function that returns the value of the resource $id,
		651	caching and regenerating as required.
		652
		653	This function can block.
		654
		655	=cut
		656
		657	sub cache {
		658	my ($id, $src, $processversion, $process) = @_;
		659
		660	my $meta =
		661	join "\x00",
		662	$processversion,
		663	map {
		664	aio_stat $_
		665	and Carp::croak "$_: $!";
		666
		667	($_, (stat _)[7,9])
		668	} @$src;
		669
		670	my $dbmeta = db_get cache => "$id/meta";
		671	if ($dbmeta ne $meta) {
		672	# changed, we may need to process
		673
		674	my @data;
		675	my $md5;
		676
		677	for (0 .. $#$src) {
		678	0 <= aio_load $src->[$_], $data[$_]
		679	or Carp::croak "$src->[$_]: $!";
		680	}
		681
		682	# if processing is expensive, check
		683	# checksum first
		684	if (1) {
		685	$md5 =
		686	join "\x00",
		687	$processversion,
		688	map {
		689	cf::cede_to_tick;
		690	($src->[$_], Digest::MD5::md5_hex $data[$_])
		691	} 0.. $#$src;
		692
		693
		694	my $dbmd5 = db_get cache => "$id/md5";
		695	if ($dbmd5 eq $md5) {
		696	db_put cache => "$id/meta", $meta;
		697
		698	return db_get cache => "$id/data";
		699	}
		700	}
		701
		702	my $t1 = Time::HiRes::time;
		703	my $data = $process->(\@data);
		704	my $t2 = Time::HiRes::time;
		705
		706	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		707
		708	db_put cache => "$id/data", $data;
		709	db_put cache => "$id/md5" , $md5;
		710	db_put cache => "$id/meta", $meta;
		711
		712	return $data;
		713	}
		714
		715	db_get cache => "$id/data"
		716	}
		717
		718	=item cf::datalog type => key => value, ...
		719
		720	Log a datalog packet of the given type with the given key-value pairs.
		721
		722	=cut
		723
		724	sub datalog($@) {
		725	my ($type, %kv) = @_;
		726	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
336	}	727	}
337		728
338	=back	729	=back
339		730
340	=cut	731	=cut
341		732
342	#############################################################################	733	#############################################################################
343		734
344	package cf::path;
345
346	sub new {
347	my ($class, $path, $base) = @_;
348
349	$path = $path->as_string if ref $path;
350
351	my $self = bless { }, $class;
352
353	# {... are special paths that are not touched
354	# ?xxx/... are special absolute paths
355	# ?random/... random maps
356	# /! non-realised random map exit
357	# /... normal maps
358	# ~/... per-player maps without a specific player (DO NOT USE)
359	# ~user/... per-player map of a specific user
360
361	if ($path =~ /^{/) {
362	# fine as it is
363	} elsif ($path =~ s{^\?random/}{}) {
364	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
365	$self->{random} = cf::from_json $data;
366	} else {
367	if ($path =~ s{^~([^/]+)?}{}) {
368	$self->{user_rel} = 1;
369
370	if (defined $1) {
371	$self->{user} = $1;
372	} elsif ($base =~ m{^~([^/]+)/}) {
373	$self->{user} = $1;
374	} else {
375	warn "cannot resolve user-relative path without user <$path,$base>\n";
376	}
377	} elsif ($path =~ /^\//) {
378	# already absolute
379	} else {
380	$base =~ s{[^/]+/?$}{};
381	return $class->new ("$base/$path");
382	}
383
384	for ($path) {
385	redo if s{/\.?/}{/};
386	redo if s{/[^/]+/\.\./}{/};
387	}
388	}
389
390	$self->{path} = $path;
391
392	$self
393	}
394
395	# the name / primary key / in-game path
396	sub as_string {
397	my ($self) = @_;
398
399	$self->{user_rel} ? "~$self->{user}$self->{path}"
400	: $self->{random} ? "?random/$self->{path}"
401	: $self->{path}
402	}
403
404	# the displayed name, this is a one way mapping
405	sub visible_name {
406	my ($self) = @_;
407
408	# if (my $rmp = $self->{random}) {
409	# # todo: be more intelligent about this
410	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
411	# } else {
412	$self->as_string
413	# }
414	}
415
416	# escape the /'s in the path
417	sub _escaped_path {
418	# ∕ is U+2215
419	(my $path = $_[0]{path}) =~ s/\//∕/g;
420	$path
421	}
422
423	# the original (read-only) location
424	sub load_path {
425	my ($self) = @_;
426
427	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
428	}
429
430	# the temporary/swap location
431	sub save_path {
432	my ($self) = @_;
433
434	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
435	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
436	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
437	}
438
439	# the unique path, might be eq to save_path
440	sub uniq_path {
441	my ($self) = @_;
442
443	$self->{user_rel} || $self->{random}
444	? undef
445	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
446	}
447
448	# return random map parameters, or undef
449	sub random_map_params {
450	my ($self) = @_;
451
452	$self->{random}
453	}
454
455	# this is somewhat ugly, but style maps do need special treatment
456	sub is_style_map {
457	$_[0]{path} =~ m{^/styles/}
458	}
459
460	package cf;
461
462	#############################################################################
463
464	=head2 ATTACHABLE OBJECTS	735	=head2 ATTACHABLE OBJECTS
465		736
466	Many objects in crossfire are so-called attachable objects. That means you can	737	Many objects in deliantra are so-called attachable objects. That means you can
467	attach callbacks/event handlers (a collection of which is called an "attachment")	738	attach callbacks/event handlers (a collection of which is called an "attachment")
468	to it. All such attachable objects support the following methods.	739	to it. All such attachable objects support the following methods.
469		740
470	In the following description, CLASS can be any of C<global>, C<object>	741	In the following description, CLASS can be any of C<global>, C<object>
471	C<player>, C<client> or C<map> (i.e. the attachable objects in	742	C<player>, C<client> or C<map> (i.e. the attachable objects in
472	crossfire+).	743	Deliantra).
473		744
474	=over 4	745	=over 4
475		746
476	=item $attachable->attach ($attachment, key => $value...)	747	=item $attachable->attach ($attachment, key => $value...)
477		748
…		…
521	=item cf::CLASS::attachment $name, ...	792	=item cf::CLASS::attachment $name, ...
522		793
523	Register an attachment by C<$name> through which attachable objects of the	794	Register an attachment by C<$name> through which attachable objects of the
524	given CLASS can refer to this attachment.	795	given CLASS can refer to this attachment.
525		796
526	Some classes such as crossfire maps and objects can specify attachments	797	Some classes such as deliantra maps and objects can specify attachments
527	that are attached at load/instantiate time, thus the need for a name.	798	that are attached at load/instantiate time, thus the need for a name.
528		799
529	These calls expect any number of the following handler/hook descriptions:	800	These calls expect any number of the following handler/hook descriptions:
530		801
531	=over 4	802	=over 4
…		…
591	our @CB_TYPE = (); # registry for type (cf-object class) based events	862	our @CB_TYPE = (); # registry for type (cf-object class) based events
592	our @CB_MAP = ();	863	our @CB_MAP = ();
593		864
594	my %attachment;	865	my %attachment;
595		866
		867	sub cf::attachable::thawer_merge {
		868	# simply override everything except _meta
		869	local $_[0]{_meta};
		870	%{$_[0]} = %{$_[1]};
		871	}
		872
596	sub _attach_cb($$$$) {	873	sub _attach_cb($$$$) {
597	my ($registry, $event, $prio, $cb) = @_;	874	my ($registry, $event, $prio, $cb) = @_;
598		875
599	use sort 'stable';	876	use sort 'stable';
600		877
…		…
634	$registry = $CB_TYPE[$object_type] ||= [];	911	$registry = $CB_TYPE[$object_type] ||= [];
635		912
636	} elsif ($type eq "subtype") {	913	} elsif ($type eq "subtype") {
637	defined $object_type or Carp::croak "subtype specified without type";	914	defined $object_type or Carp::croak "subtype specified without type";
638	my $object_subtype = shift @arg;	915	my $object_subtype = shift @arg;
639	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	916	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
640		917
641	} elsif ($type eq "package") {	918	} elsif ($type eq "package") {
642	my $pkg = shift @arg;	919	my $pkg = shift @arg;
643		920
644	while (my ($name, $id) = each %cb_id) {	921	while (my ($name, $id) = each %cb_id) {
…		…
673	_attach $registry, $klass, @attach;	950	_attach $registry, $klass, @attach;
674	}	951	}
675		952
676	$obj->{$name} = \%arg;	953	$obj->{$name} = \%arg;
677	} else {	954	} else {
678	warn "object uses attachment '$name' that is not available, postponing.\n";	955	warn "object uses attachment '$name' which is not available, postponing.\n";
679	}	956	}
680		957
681	$obj->{_attachment}{$name} = undef;	958	$obj->{_attachment}{$name} = undef;
682	}	959	}
683		960
…		…
685	if (ref $_[0]) {	962	if (ref $_[0]) {
686	_object_attach @_;	963	_object_attach @_;
687	} else {	964	} else {
688	_attach shift->_attach_registry, @_;	965	_attach shift->_attach_registry, @_;
689	}	966	}
		967	_recalc_want;
690	};	968	};
691		969
692	# all those should be optimised	970	# all those should be optimised
693	sub cf::attachable::detach {	971	sub cf::attachable::detach {
694	my ($obj, $name) = @_;	972	my ($obj, $name) = @_;
…		…
697	delete $obj->{_attachment}{$name};	975	delete $obj->{_attachment}{$name};
698	reattach ($obj);	976	reattach ($obj);
699	} else {	977	} else {
700	Carp::croak "cannot, currently, detach class attachments";	978	Carp::croak "cannot, currently, detach class attachments";
701	}	979	}
		980	_recalc_want;
702	};	981	};
703		982
704	sub cf::attachable::attached {	983	sub cf::attachable::attached {
705	my ($obj, $name) = @_;	984	my ($obj, $name) = @_;
706		985
…		…
721	";	1000	";
722	die if $@;	1001	die if $@;
723	}	1002	}
724		1003
725	our $override;	1004	our $override;
726	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1005	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
727		1006
728	sub override {	1007	sub override {
729	$override = 1;	1008	$override = 1;
730	@invoke_results = ();	1009	@INVOKE_RESULTS = (@_);
731	}	1010	}
732		1011
733	sub do_invoke {	1012	sub do_invoke {
734	my $event = shift;	1013	my $event = shift;
735	my $callbacks = shift;	1014	my $callbacks = shift;
736		1015
737	@invoke_results = ();	1016	@INVOKE_RESULTS = ();
738		1017
739	local $override;	1018	local $override;
740		1019
741	for (@$callbacks) {	1020	for (@$callbacks) {
742	eval { &{$_->[1]} };	1021	eval { &{$_->[1]} };
…		…
751	}	1030	}
752		1031
753	0	1032	0
754	}	1033	}
755		1034
756	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1035	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
757		1036
758	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1037	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
759		1038
760	Generate an object-specific event with the given arguments.	1039	Generate an object-specific event with the given arguments.
761		1040
762	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1041	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
763	removed in future versions), and there is no public API to access override	1042	removed in future versions), and there is no public API to access override
764	results (if you must, access C<@cf::invoke_results> directly).	1043	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
765		1044
766	=back	1045	=back
767		1046
768	=cut	1047	=cut
769		1048
770	#############################################################################	1049	#############################################################################
771	# object support	1050	# object support
		1051
		1052	sub _object_equal($$);
		1053	sub _object_equal($$) {
		1054	my ($a, $b) = @_;
		1055
		1056	return 0 unless (ref $a) eq (ref $b);
		1057
		1058	if ("HASH" eq ref $a) {
		1059	my @ka = keys %$a;
		1060	my @kb = keys %$b;
		1061
		1062	return 0 if @ka != @kb;
		1063
		1064	for (0 .. $#ka) {
		1065	return 0 unless $ka[$_] eq $kb[$_];
		1066	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1067	}
		1068
		1069	} elsif ("ARRAY" eq ref $a) {
		1070
		1071	return 0 if @$a != @$b;
		1072
		1073	for (0 .. $#$a) {
		1074	return 0 unless _object_equal $a->[$_], $b->[$_];
		1075	}
		1076
		1077	} elsif ($a ne $b) {
		1078	return 0;
		1079	}
		1080
		1081	1
		1082	}
		1083
		1084	our $SLOW_MERGES;#d#
		1085	sub _can_merge {
		1086	my ($ob1, $ob2) = @_;
		1087
		1088	++$SLOW_MERGES;#d#
		1089
		1090	# we do the slow way here
		1091	return _object_equal $ob1, $ob2
		1092	}
772		1093
773	sub reattach {	1094	sub reattach {
774	# basically do the same as instantiate, without calling instantiate	1095	# basically do the same as instantiate, without calling instantiate
775	my ($obj) = @_;	1096	my ($obj) = @_;
		1097
		1098	# no longer needed after getting rid of delete_package?
		1099	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
776		1100
777	my $registry = $obj->registry;	1101	my $registry = $obj->registry;
778		1102
779	@$registry = ();	1103	@$registry = ();
780		1104
…		…
795	cf::attachable->attach (	1119	cf::attachable->attach (
796	prio => -1000000,	1120	prio => -1000000,
797	on_instantiate => sub {	1121	on_instantiate => sub {
798	my ($obj, $data) = @_;	1122	my ($obj, $data) = @_;
799		1123
800	$data = from_json $data;	1124	$data = decode_json $data;
801		1125
802	for (@$data) {	1126	for (@$data) {
803	my ($name, $args) = @$_;	1127	my ($name, $args) = @$_;
804		1128
805	$obj->attach ($name, %{$args || {} });	1129	$obj->attach ($name, %{$args || {} });
…		…
821	sub object_freezer_save {	1145	sub object_freezer_save {
822	my ($filename, $rdata, $objs) = @_;	1146	my ($filename, $rdata, $objs) = @_;
823		1147
824	sync_job {	1148	sync_job {
825	if (length $$rdata) {	1149	if (length $$rdata) {
		1150	utf8::decode (my $decname = $filename);
826	warn sprintf "saving %s (%d,%d)\n",	1151	warn sprintf "saving %s (%d,%d)\n",
827	$filename, length $$rdata, scalar @$objs;	1152	$decname, length $$rdata, scalar @$objs;
828		1153
829	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1154	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
830	chmod SAVE_MODE, $fh;	1155	aio_chmod $fh, SAVE_MODE;
831	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1156	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1157	if ($cf::USE_FSYNC) {
		1158	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;
832	aio_fsync $fh;	1159	aio_fsync $fh;
		1160	}
833	close $fh;	1161	aio_close $fh;
834		1162
835	if (@$objs) {	1163	if (@$objs) {
836	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1164	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
837	chmod SAVE_MODE, $fh;	1165	aio_chmod $fh, SAVE_MODE;
838	my $data = Storable::nfreeze { version => 1, objs => $objs };	1166	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
839	aio_write $fh, 0, (length $data), $data, 0;	1167	aio_write $fh, 0, (length $data), $data, 0;
		1168	if ($cf::USE_FSYNC) {
		1169	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;
840	aio_fsync $fh;	1170	aio_fsync $fh;
		1171	}
841	close $fh;	1172	aio_close $fh;
842	aio_rename "$filename.pst~", "$filename.pst";	1173	aio_rename "$filename.pst~", "$filename.pst";
843	}	1174	}
844	} else {	1175	} else {
845	aio_unlink "$filename.pst";	1176	aio_unlink "$filename.pst";
846	}	1177	}
847		1178
848	aio_rename "$filename~", $filename;	1179	aio_rename "$filename~", $filename;
		1180
		1181	$filename =~ s%/[^/]+$%%;
		1182	aio_pathsync $filename if $cf::USE_FSYNC;
849	} else {	1183	} else {
850	warn "FATAL: $filename~: $!\n";	1184	warn "unable to save objects: $filename~: $!\n";
851	}	1185	}
852	} else {	1186	} else {
853	aio_unlink $filename;	1187	aio_unlink $filename;
854	aio_unlink "$filename.pst";	1188	aio_unlink "$filename.pst";
855	}	1189	}
856	}	1190	};
857	}	1191	}
858		1192
859	sub object_freezer_as_string {	1193	sub object_freezer_as_string {
860	my ($rdata, $objs) = @_;	1194	my ($rdata, $objs) = @_;
861		1195
…		…
873	or return;	1207	or return;
874		1208
875	unless (aio_stat "$filename.pst") {	1209	unless (aio_stat "$filename.pst") {
876	(aio_load "$filename.pst", $av) >= 0	1210	(aio_load "$filename.pst", $av) >= 0
877	or return;	1211	or return;
		1212
878	$av = eval { (Storable::thaw $av)->{objs} };	1213	my $st = eval { Coro::Storable::thaw $av };
		1214	$av = $st->{objs};
879	}	1215	}
880		1216
		1217	utf8::decode (my $decname = $filename);
881	warn sprintf "loading %s (%d)\n",	1218	warn sprintf "loading %s (%d,%d)\n",
882	$filename, length $data, scalar @{$av || []};#d#	1219	$decname, length $data, scalar @{$av || []};
		1220
883	return ($data, $av);	1221	($data, $av)
884	}	1222	}
		1223
		1224	=head2 COMMAND CALLBACKS
		1225
		1226	=over 4
		1227
		1228	=cut
885		1229
886	#############################################################################	1230	#############################################################################
887	# command handling &c	1231	# command handling &c
888		1232
889	=item cf::register_command $name => \&callback($ob,$args);	1233	=item cf::register_command $name => \&callback($ob,$args);
…		…
902	push @{ $COMMAND{$name} }, [$caller, $cb];	1246	push @{ $COMMAND{$name} }, [$caller, $cb];
903	}	1247	}
904		1248
905	=item cf::register_extcmd $name => \&callback($pl,$packet);	1249	=item cf::register_extcmd $name => \&callback($pl,$packet);
906		1250
907	Register a callbackf ro execution when the client sends an extcmd packet.	1251	Register a callback for execution when the client sends an (synchronous)
		1252	extcmd packet. Ext commands will be processed in the order they are
		1253	received by the server, like other user commands. The first argument is
		1254	the logged-in player. Ext commands can only be processed after a player
		1255	has logged in successfully.
908		1256
909	If the callback returns something, it is sent back as if reply was being	1257	If the callback returns something, it is sent back as if reply was being
910	called.	1258	called.
911		1259
		1260	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1261
		1262	Register a callback for execution when the client sends an (asynchronous)
		1263	exticmd packet. Exti commands are processed by the server as soon as they
		1264	are received, i.e. out of order w.r.t. other commands. The first argument
		1265	is a client socket. Exti commands can be received anytime, even before
		1266	log-in.
		1267
		1268	If the callback returns something, it is sent back as if reply was being
		1269	called.
		1270
912	=cut	1271	=cut
913		1272
914	sub register_extcmd {	1273	sub register_extcmd {
915	my ($name, $cb) = @_;	1274	my ($name, $cb) = @_;
916		1275
917	my $caller = caller;
918	#warn "registering extcmd '$name' to '$caller'";
919
920	$EXTCMD{$name} = [$cb, $caller];	1276	$EXTCMD{$name} = $cb;
921	}	1277	}
		1278
		1279	sub register_exticmd {
		1280	my ($name, $cb) = @_;
		1281
		1282	$EXTICMD{$name} = $cb;
		1283	}
		1284
		1285	use File::Glob ();
922		1286
923	cf::player->attach (	1287	cf::player->attach (
924	on_command => sub {	1288	on_command => sub {
925	my ($pl, $name, $params) = @_;	1289	my ($pl, $name, $params) = @_;
926		1290
…		…
934	cf::override;	1298	cf::override;
935	},	1299	},
936	on_extcmd => sub {	1300	on_extcmd => sub {
937	my ($pl, $buf) = @_;	1301	my ($pl, $buf) = @_;
938		1302
939	my $msg = eval { from_json $buf };	1303	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
940		1304
941	if (ref $msg) {	1305	if (ref $msg) {
		1306	my ($type, $reply, @payload) =
		1307	"ARRAY" eq ref $msg
		1308	? @$msg
		1309	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1310
		1311	my @reply;
		1312
942	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1313	if (my $cb = $EXTCMD{$type}) {
943	if (my %reply = $cb->[0]->($pl, $msg)) {	1314	@reply = $cb->($pl, @payload);
944	$pl->ext_reply ($msg->{msgid}, %reply);
945	}
946	}	1315	}
		1316
		1317	$pl->ext_reply ($reply, @reply)
		1318	if $reply;
		1319
947	} else {	1320	} else {
948	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1321	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
949	}	1322	}
950		1323
951	cf::override;	1324	cf::override;
952	},	1325	},
953	);	1326	);
954		1327
955	sub register {	1328	# "readahead" all extensions
956	my ($base, $pkg) = @_;	1329	sub cache_extensions {
		1330	my $grp = IO::AIO::aio_group;
957		1331
958	#TODO	1332	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
959	}	1333	for (grep /\.ext$/, @{$_[0]}) {
		1334	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
		1335	}
		1336	};
960		1337
		1338	$grp
		1339	}
		1340
961	sub load_extension {	1341	sub load_extensions {
		1342	cf::sync_job {
		1343	my %todo;
		1344
		1345	for my $path (<$LIBDIR/*.ext>) {
		1346	next unless -r $path;
		1347
		1348	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1349	my $base = $1;
		1350	my $pkg = $1;
		1351	$pkg =~ s/[^[:word:]]/_/g;
		1352	$pkg = "ext::$pkg";
		1353
		1354	open my $fh, "<:utf8", $path
		1355	or die "$path: $!";
		1356
		1357	my $source = do { local $/; <$fh> };
		1358
		1359	my %ext = (
		1360	path => $path,
		1361	base => $base,
		1362	pkg => $pkg,
		1363	);
		1364
		1365	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1366	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1367
		1368	$ext{source} =
		1369	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1370	. "#line 1 \"$path\"\n{\n"
		1371	. $source
		1372	. "\n};\n1";
		1373
		1374	$todo{$base} = \%ext;
		1375	}
		1376
		1377	my %done;
		1378	while (%todo) {
		1379	my $progress;
		1380
		1381	while (my ($k, $v) = each %todo) {
		1382	for (split /,\s*/, $v->{meta}{depends}) {
		1383	goto skip
		1384	unless exists $done{$_};
		1385	}
		1386
		1387	warn "... loading '$k' into '$v->{pkg}'\n";
		1388
		1389	unless (eval $v->{source}) {
		1390	my $msg = $@ ? "$v->{path}: $@\n"
		1391	: "$v->{base}: extension inactive.\n";
		1392
		1393	if (exists $v->{meta}{mandatory}) {
		1394	warn $msg;
		1395	cf::cleanup "mandatory extension failed to load, exiting.";
		1396	}
		1397
		1398	warn $msg;
		1399	}
		1400
		1401	$done{$k} = delete $todo{$k};
		1402	push @EXTS, $v->{pkg};
		1403	$progress = 1;
		1404	}
		1405
		1406	skip:
		1407	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1408	unless $progress;
		1409	}
		1410	};
		1411	}
		1412
		1413	#############################################################################
		1414
		1415	=back
		1416
		1417	=head2 CORE EXTENSIONS
		1418
		1419	Functions and methods that extend core deliantra objects.
		1420
		1421	=cut
		1422
		1423	package cf::player;
		1424
		1425	use Coro::AIO;
		1426
		1427	=head3 cf::player
		1428
		1429	=over 4
		1430
		1431	=item cf::player::num_playing
		1432
		1433	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1434
		1435	=cut
		1436
		1437	sub num_playing {
		1438	scalar grep
		1439	$_->ob->map
		1440	&& !$_->hidden
		1441	&& !$_->ob->flag (cf::FLAG_WIZ),
		1442	cf::player::list
		1443	}
		1444
		1445	=item cf::player::find $login
		1446
		1447	Returns the given player object, loading it if necessary (might block).
		1448
		1449	=cut
		1450
		1451	sub playerdir($) {
		1452	"$PLAYERDIR/"
		1453	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1454	}
		1455
		1456	sub path($) {
		1457	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1458
		1459	(playerdir $login) . "/playerdata"
		1460	}
		1461
		1462	sub find_active($) {
		1463	$cf::PLAYER{$_[0]}
		1464	and $cf::PLAYER{$_[0]}->active
		1465	and $cf::PLAYER{$_[0]}
		1466	}
		1467
		1468	sub exists($) {
		1469	my ($login) = @_;
		1470
		1471	$cf::PLAYER{$login}
		1472	or !aio_stat path $login
		1473	}
		1474
		1475	sub find($) {
		1476	return $cf::PLAYER{$_[0]} || do {
		1477	my $login = $_[0];
		1478
		1479	my $guard = cf::lock_acquire "user_find:$login";
		1480
		1481	$cf::PLAYER{$_[0]} || do {
		1482	# rename old playerfiles to new ones
		1483	#TODO: remove when no longer required
		1484	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1485	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1486	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1487	aio_unlink +(playerdir $login) . "/$login.pl";
		1488
		1489	my $f = new_from_file cf::object::thawer path $login
		1490	or return;
		1491
		1492	my $pl = cf::player::load_pl $f
		1493	or return;
		1494
		1495	local $cf::PLAYER_LOADING{$login} = $pl;
		1496	$f->resolve_delayed_derefs;
		1497	$cf::PLAYER{$login} = $pl
		1498	}
		1499	}
		1500	}
		1501
		1502	sub save($) {
		1503	my ($pl) = @_;
		1504
		1505	return if $pl->{deny_save};
		1506
		1507	my $path = path $pl;
		1508	my $guard = cf::lock_acquire "user_save:$path";
		1509
		1510	return if $pl->{deny_save};
		1511
		1512	aio_mkdir playerdir $pl, 0770;
		1513	$pl->{last_save} = $cf::RUNTIME;
		1514
		1515	cf::get_slot 0.01;
		1516
		1517	$pl->save_pl ($path);
		1518	cf::cede_to_tick;
		1519	}
		1520
		1521	sub new($) {
		1522	my ($login) = @_;
		1523
		1524	my $self = create;
		1525
		1526	$self->ob->name ($login);
		1527	$self->{deny_save} = 1;
		1528
		1529	$cf::PLAYER{$login} = $self;
		1530
		1531	$self
		1532	}
		1533
		1534	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1535
		1536	=cut
		1537
		1538	sub send_msg {
		1539	my $ns = shift->ns
		1540	or return;
		1541	$ns->send_msg (@_);
		1542	}
		1543
		1544	=item $pl->quit_character
		1545
		1546	Nukes the player without looking back. If logged in, the connection will
		1547	be destroyed. May block for a long time.
		1548
		1549	=cut
		1550
		1551	sub quit_character {
		1552	my ($pl) = @_;
		1553
		1554	my $name = $pl->ob->name;
		1555
		1556	$pl->{deny_save} = 1;
		1557	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1558
		1559	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1560	$pl->deactivate;
		1561	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1562	$pl->ob->check_score;
		1563	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1564	$pl->ns->destroy if $pl->ns;
		1565
		1566	my $path = playerdir $pl;
		1567	my $temp = "$path~$cf::RUNTIME~deleting~";
		1568	aio_rename $path, $temp;
		1569	delete $cf::PLAYER{$pl->ob->name};
		1570	$pl->destroy;
		1571
		1572	my $prefix = qr<^~\Q$name\E/>;
		1573
		1574	# nuke player maps
		1575	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1576
		1577	IO::AIO::aio_rmtree $temp;
		1578	}
		1579
		1580	=item $pl->kick
		1581
		1582	Kicks a player out of the game. This destroys the connection.
		1583
		1584	=cut
		1585
		1586	sub kick {
		1587	my ($pl, $kicker) = @_;
		1588
		1589	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1590	$pl->killer ("kicked");
		1591	$pl->ns->destroy;
		1592	}
		1593
		1594	=item cf::player::list_logins
		1595
		1596	Returns am arrayref of all valid playernames in the system, can take a
		1597	while and may block, so not sync_job-capable, ever.
		1598
		1599	=cut
		1600
		1601	sub list_logins {
		1602	my $dirs = aio_readdir $PLAYERDIR
		1603	or return [];
		1604
		1605	my @logins;
		1606
		1607	for my $login (@$dirs) {
		1608	my $path = path $login;
		1609
		1610	# a .pst is a dead give-away for a valid player
		1611	# if no pst file found, open and chekc for blocked users
		1612	if (aio_stat "$path.pst") {
		1613	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1614	aio_read $fh, 0, 512, my $buf, 0 or next;
		1615	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1616	}
		1617
		1618	utf8::decode $login;
		1619	push @logins, $login;
		1620	}
		1621
		1622	\@logins
		1623	}
		1624
		1625	=item $player->maps
		1626
		1627	Returns an arrayref of map paths that are private for this
		1628	player. May block.
		1629
		1630	=cut
		1631
		1632	sub maps($) {
		1633	my ($pl) = @_;
		1634
		1635	$pl = ref $pl ? $pl->ob->name : $pl;
		1636
		1637	my $files = aio_readdir playerdir $pl
		1638	or return;
		1639
		1640	my @paths;
		1641
		1642	for (@$files) {
		1643	utf8::decode $_;
		1644	next if /\.(?:pl|pst)$/;
		1645	next unless /^$PATH_SEP/o;
		1646
		1647	push @paths, cf::map::normalise "~$pl/$_";
		1648	}
		1649
		1650	\@paths
		1651	}
		1652
		1653	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1654
		1655	Expand deliantra pod fragments into protocol xml.
		1656
		1657	=item $player->ext_reply ($msgid, @msg)
		1658
		1659	Sends an ext reply to the player.
		1660
		1661	=cut
		1662
		1663	sub ext_reply($$@) {
		1664	my ($self, $id, @msg) = @_;
		1665
		1666	$self->ns->ext_reply ($id, @msg)
		1667	}
		1668
		1669	=item $player->ext_msg ($type, @msg)
		1670
		1671	Sends an ext event to the client.
		1672
		1673	=cut
		1674
		1675	sub ext_msg($$@) {
		1676	my ($self, $type, @msg) = @_;
		1677
		1678	$self->ns->ext_msg ($type, @msg);
		1679	}
		1680
		1681	=head3 cf::region
		1682
		1683	=over 4
		1684
		1685	=cut
		1686
		1687	package cf::region;
		1688
		1689	=item cf::region::find_by_path $path
		1690
		1691	Tries to decuce the likely region for a map knowing only its path.
		1692
		1693	=cut
		1694
		1695	sub find_by_path($) {
962	my ($path) = @_;	1696	my ($path) = @_;
963		1697
964	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1698	my ($match, $specificity);
965	my $base = $1;
966	my $pkg = $1;
967	$pkg =~ s/[^[:word:]]/_/g;
968	$pkg = "ext::$pkg";
969		1699
970	warn "loading '$path' into '$pkg'\n";	1700	for my $region (list) {
971		1701	if ($region->{match} && $path =~ $region->{match}) {
972	open my $fh, "<:utf8", $path	1702	($match, $specificity) = ($region, $region->specificity)
973	or die "$path: $!";	1703	if $region->specificity > $specificity;
974		1704	}
975	my $source =
976	"package $pkg; use strict; use utf8;\n"
977	. "#line 1 \"$path\"\n{\n"
978	. (do { local $/; <$fh> })
979	. "\n};\n1";
980
981	eval $source
982	or die $@ ? "$path: $@\n"
983	: "extension disabled.\n";
984
985	push @exts, $pkg;
986	$ext_pkg{$base} = $pkg;
987
988	# no strict 'refs';
989	# @{"$pkg\::ISA"} = ext::;
990
991	register $base, $pkg;
992	}
993
994	sub unload_extension {
995	my ($pkg) = @_;
996
997	warn "removing extension $pkg\n";
998
999	# remove hooks
1000	#TODO
1001	# for my $idx (0 .. $#PLUGIN_EVENT) {
1002	# delete $hook[$idx]{$pkg};
1003	# }	1705	}
1004		1706
1005	# remove commands	1707	$match
1006	for my $name (keys %COMMAND) {
1007	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1008
1009	if (@cb) {
1010	$COMMAND{$name} = \@cb;
1011	} else {
1012	delete $COMMAND{$name};
1013	}
1014	}
1015
1016	# remove extcmds
1017	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1018	delete $EXTCMD{$name};
1019	}
1020
1021	if (my $cb = $pkg->can ("unload")) {
1022	eval {
1023	$cb->($pkg);
1024	1
1025	} or warn "$pkg unloaded, but with errors: $@";
1026	}
1027
1028	Symbol::delete_package $pkg;
1029	}
1030
1031	sub load_extensions {
1032	for my $ext (<$LIBDIR/*.ext>) {
1033	next unless -r $ext;
1034	eval {
1035	load_extension $ext;
1036	1
1037	} or warn "$ext not loaded: $@";
1038	}
1039	}
1040
1041	#############################################################################
1042	# load/save/clean perl data associated with a map
1043
1044	*cf::mapsupport::on_clean = sub {
1045	my ($map) = @_;
1046
1047	my $path = $map->tmpname;
1048	defined $path or return;
1049
1050	unlink "$path.pst";
1051	};
1052
1053	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1054
1055	#############################################################################
1056	# load/save perl data associated with player->ob objects
1057
1058	sub all_objects(@) {
1059	@_, map all_objects ($_->inv), @_
1060	}
1061
1062	# TODO: compatibility cruft, remove when no longer needed
1063	cf::player->attach (
1064	on_load => sub {
1065	my ($pl, $path) = @_;
1066
1067	for my $o (all_objects $pl->ob) {
1068	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1069	$o->set_ob_key_value ("_perl_data");
1070
1071	%$o = %{ Storable::thaw pack "H*", $value };
1072	}
1073	}
1074	},
1075	);
1076
1077	#############################################################################
1078
1079	=head2 CORE EXTENSIONS
1080
1081	Functions and methods that extend core crossfire objects.
1082
1083	=head3 cf::player
1084
1085	=over 4
1086
1087	=item cf::player::exists $login
1088
1089	Returns true when the given account exists.
1090
1091	=cut
1092
1093	sub cf::player::exists($) {
1094	cf::player::find $_[0]
1095	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1096	}
1097
1098	=item $player->ext_reply ($msgid, $msgtype, %msg)
1099
1100	Sends an ext reply to the player.
1101
1102	=cut
1103
1104	sub cf::player::ext_reply($$$%) {
1105	my ($self, $id, %msg) = @_;
1106
1107	$msg{msgid} = $id;
1108
1109	$self->send ("ext " . to_json \%msg);
1110	}	1708	}
1111		1709
1112	=back	1710	=back
1113
1114		1711
1115	=head3 cf::map	1712	=head3 cf::map
1116		1713
1117	=over 4	1714	=over 4
1118		1715
…		…
1121	package cf::map;	1718	package cf::map;
1122		1719
1123	use Fcntl;	1720	use Fcntl;
1124	use Coro::AIO;	1721	use Coro::AIO;
1125		1722
		1723	use overload
		1724	'""' => \&as_string,
		1725	fallback => 1;
		1726
1126	our $MAX_RESET = 3600;	1727	our $MAX_RESET = 3600;
1127	our $DEFAULT_RESET = 3000;	1728	our $DEFAULT_RESET = 3000;
1128		1729
1129	sub generate_random_map {	1730	sub generate_random_map {
1130	my ($path, $rmp) = @_;	1731	my ($self, $rmp) = @_;
		1732
		1733	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1131		1734
1132	# mit "rum" bekleckern, nicht	1735	# mit "rum" bekleckern, nicht
1133	cf::map::_create_random_map	1736	$self->_create_random_map (
1134	$path,
1135	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1737	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1136	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1738	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1137	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1739	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1138	$rmp->{exit_on_final_map},	1740	$rmp->{exit_on_final_map},
1139	$rmp->{xsize}, $rmp->{ysize},	1741	$rmp->{xsize}, $rmp->{ysize},
1140	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1742	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1141	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1743	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1142	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1744	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1143	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1745	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1144	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1746	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1145	(cf::region::find $rmp->{region})	1747	(cf::region::find $rmp->{region}), $rmp->{custom}
		1748	)
1146	}	1749	}
1147		1750
1148	# and all this just because we cannot iterate over	1751	=item cf::map->register ($regex, $prio)
1149	# all maps in C++...
1150	sub change_all_map_light {
1151	my ($change) = @_;
1152		1752
1153	$_->change_map_light ($change)	1753	Register a handler for the map path matching the given regex at the
1154	for grep $_->outdoor, values %cf::MAP;	1754	givne priority (higher is better, built-in handlers have priority 0, the
1155	}	1755	default).
1156		1756
1157	sub try_load_header($) {	1757	=cut
		1758
		1759	sub register {
		1760	my (undef, $regex, $prio) = @_;
		1761	my $pkg = caller;
		1762
		1763	no strict;
		1764	push @{"$pkg\::ISA"}, __PACKAGE__;
		1765
		1766	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1767	}
		1768
		1769	# also paths starting with '/'
		1770	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1771
		1772	sub thawer_merge {
		1773	my ($self, $merge) = @_;
		1774
		1775	# we have to keep some variables in memory intact
		1776	local $self->{path};
		1777	local $self->{load_path};
		1778
		1779	$self->SUPER::thawer_merge ($merge);
		1780	}
		1781
		1782	sub normalise {
1158	my ($path) = @_;	1783	my ($path, $base) = @_;
		1784
		1785	$path = "$path"; # make sure its a string
		1786
		1787	$path =~ s/\.map$//;
		1788
		1789	# map plan:
		1790	#
		1791	# /! non-realised random map exit (special hack!)
		1792	# {... are special paths that are not being touched
		1793	# ?xxx/... are special absolute paths
		1794	# ?random/... random maps
		1795	# /... normal maps
		1796	# ~user/... per-player map of a specific user
		1797
		1798	$path =~ s/$PATH_SEP/\//go;
		1799
		1800	# treat it as relative path if it starts with
		1801	# something that looks reasonable
		1802	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1803	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1804
		1805	$base =~ s{[^/]+/?$}{};
		1806	$path = "$base/$path";
		1807	}
		1808
		1809	for ($path) {
		1810	redo if s{//}{/};
		1811	redo if s{/\.?/}{/};
		1812	redo if s{/[^/]+/\.\./}{/};
		1813	}
		1814
		1815	$path
		1816	}
		1817
		1818	sub new_from_path {
		1819	my (undef, $path, $base) = @_;
		1820
		1821	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1822
		1823	$path = normalise $path, $base;
		1824
		1825	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1826	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1827	my $self = bless cf::map::new, $pkg;
		1828	$self->{path} = $path; $self->path ($path);
		1829	$self->init; # pass $1 etc.
		1830	return $self;
		1831	}
		1832	}
		1833
		1834	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1835	()
		1836	}
		1837
		1838	sub init {
		1839	my ($self) = @_;
		1840
		1841	$self
		1842	}
		1843
		1844	sub as_string {
		1845	my ($self) = @_;
		1846
		1847	"$self->{path}"
		1848	}
		1849
		1850	# the displayed name, this is a one way mapping
		1851	sub visible_name {
		1852	&as_string
		1853	}
		1854
		1855	# the original (read-only) location
		1856	sub load_path {
		1857	my ($self) = @_;
		1858
		1859	"$MAPDIR/$self->{path}.map"
		1860	}
		1861
		1862	# the temporary/swap location
		1863	sub save_path {
		1864	my ($self) = @_;
		1865
		1866	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1867	"$TMPDIR/$path.map"
		1868	}
		1869
		1870	# the unique path, undef == no special unique path
		1871	sub uniq_path {
		1872	my ($self) = @_;
		1873
		1874	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1875	"$UNIQUEDIR/$path"
		1876	}
		1877
		1878	sub decay_objects {
		1879	my ($self) = @_;
		1880
		1881	return if $self->{deny_reset};
		1882
		1883	$self->do_decay_objects;
		1884	}
		1885
		1886	sub unlink_save {
		1887	my ($self) = @_;
		1888
		1889	utf8::encode (my $save = $self->save_path);
		1890	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1891	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1892	}
		1893
		1894	sub load_header_from($) {
		1895	my ($self, $path) = @_;
1159		1896
1160	utf8::encode $path;	1897	utf8::encode $path;
1161	aio_open $path, O_RDONLY, 0	1898	my $f = new_from_file cf::object::thawer $path
1162	or return;	1899	or return;
1163		1900
1164	my $map = cf::map::new	1901	$self->_load_header ($f)
1165	or return;	1902	or return;
1166		1903
1167	# for better error messages only, will be overwritten	1904	local $MAP_LOADING{$self->{path}} = $self;
1168	$map->path ($path);	1905	$f->resolve_delayed_derefs;
1169		1906
1170	$map->load_header ($path)	1907	$self->{load_path} = $path;
		1908
		1909	1
		1910	}
		1911
		1912	sub load_header_orig {
		1913	my ($self) = @_;
		1914
		1915	$self->load_header_from ($self->load_path)
		1916	}
		1917
		1918	sub load_header_temp {
		1919	my ($self) = @_;
		1920
		1921	$self->load_header_from ($self->save_path)
		1922	}
		1923
		1924	sub prepare_temp {
		1925	my ($self) = @_;
		1926
		1927	$self->last_access ((delete $self->{last_access})
		1928	|| $cf::RUNTIME); #d#
		1929	# safety
		1930	$self->{instantiate_time} = $cf::RUNTIME
		1931	if $self->{instantiate_time} > $cf::RUNTIME;
		1932	}
		1933
		1934	sub prepare_orig {
		1935	my ($self) = @_;
		1936
		1937	$self->{load_original} = 1;
		1938	$self->{instantiate_time} = $cf::RUNTIME;
		1939	$self->last_access ($cf::RUNTIME);
		1940	$self->instantiate;
		1941	}
		1942
		1943	sub load_header {
		1944	my ($self) = @_;
		1945
		1946	if ($self->load_header_temp) {
		1947	$self->prepare_temp;
		1948	} else {
		1949	$self->load_header_orig
1171	or return;	1950	or return;
		1951	$self->prepare_orig;
		1952	}
1172		1953
1173	$map->{load_path} = $path;	1954	$self->{deny_reset} = 1
		1955	if $self->no_reset;
1174		1956
1175	$map	1957	$self->default_region (cf::region::find_by_path $self->{path})
		1958	unless $self->default_region;
		1959
		1960	1
1176	}	1961	}
1177		1962
1178	sub find;	1963	sub find;
1179	sub find {	1964	sub find {
1180	my ($path, $origin) = @_;	1965	my ($path, $origin) = @_;
1181		1966
1182	#warn "find<$path,$origin>\n";#d#
1183
1184	$path = new cf::path $path, $origin && $origin->path;	1967	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		1968
1187	cf::lock_wait "map_find:$key";	1969	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1188
1189	$cf::MAP{$key} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	1970	my $guard2 = cf::lock_acquire "map_find:$path";
1191		1971
1192	# do it the slow way	1972	$cf::MAP{$path} || do {
1193	my $map = try_load_header $path->save_path;	1973	my $map = new_from_path cf::map $path
1194
1195	Coro::cede;
1196
1197	if ($map) {
1198	$map->last_access ((delete $map->{last_access})
1199	|| $cf::RUNTIME); #d#
1200	# safety
1201	$map->{instantiate_time} = $cf::RUNTIME
1202	if $map->{instantiate_time} > $cf::RUNTIME;
1203	} else {
1204	if (my $rmp = $path->random_map_params) {
1205	$map = generate_random_map $key, $rmp;
1206	} else {
1207	$map = try_load_header $path->load_path;
1208	}
1209
1210	$map or return;	1974	or return;
1211		1975
1212	$map->{load_original} = 1;
1213	$map->{instantiate_time} = $cf::RUNTIME;
1214	$map->last_access ($cf::RUNTIME);
1215	$map->instantiate;
1216
1217	# per-player maps become, after loading, normal maps
1218	$map->per_player (0) if $path->{user_rel};
1219	}
1220
1221	$map->path ($key);
1222	$map->{path} = $path;
1223	$map->{last_save} = $cf::RUNTIME;	1976	$map->{last_save} = $cf::RUNTIME;
1224		1977
1225	Coro::cede;	1978	$map->load_header
		1979	or return;
1226		1980
1227	if ($map->should_reset) {	1981	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1982	# doing this can freeze the server in a sync job, obviously
		1983	#$cf::WAIT_FOR_TICK->wait;
		1984	undef $guard2;
		1985	undef $guard1;
1228	$map->reset;	1986	$map->reset;
1229	undef $guard;
1230	$map = find $path	1987	return find $path;
1231	or return;
1232	}	1988	}
1233		1989
1234	$cf::MAP{$key} = $map	1990	$cf::MAP{$path} = $map
1235	}	1991	}
1236	}	1992	}
		1993
		1994	sub pre_load { }
		1995	sub post_load { }
1237		1996
1238	sub load {	1997	sub load {
1239	my ($self) = @_;	1998	my ($self) = @_;
1240		1999
		2000	local $self->{deny_reset} = 1; # loading can take a long time
		2001
1241	my $path = $self->{path};	2002	my $path = $self->{path};
		2003
		2004	{
1242	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2005	my $guard = cf::lock_acquire "map_data:$path";
1243		2006
		2007	return unless $self->valid;
1244	return if $self->in_memory != cf::MAP_SWAPPED;	2008	return unless $self->in_memory == cf::MAP_SWAPPED;
1245		2009
1246	$self->in_memory (cf::MAP_LOADING);	2010	$self->in_memory (cf::MAP_LOADING);
1247		2011
1248	$self->alloc;	2012	$self->alloc;
1249	$self->load_objects ($self->{load_path}, 1)	2013
		2014	$self->pre_load;
		2015	cf::cede_to_tick;
		2016
		2017	my $f = new_from_file cf::object::thawer $self->{load_path};
		2018	$f->skip_block;
		2019	$self->_load_objects ($f)
1250	or return;	2020	or return;
1251		2021
1252	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2022	$self->post_load_original
1253	if delete $self->{load_original};	2023	if delete $self->{load_original};
1254		2024
1255	if (my $uniq = $path->uniq_path) {	2025	if (my $uniq = $self->uniq_path) {
1256	utf8::encode $uniq;	2026	utf8::encode $uniq;
1257	if (aio_open $uniq, O_RDONLY, 0) {	2027	unless (aio_stat $uniq) {
		2028	if (my $f = new_from_file cf::object::thawer $uniq) {
1258	$self->clear_unique_items;	2029	$self->clear_unique_items;
1259	$self->load_objects ($uniq, 0);	2030	$self->_load_objects ($f);
		2031	$f->resolve_delayed_derefs;
		2032	}
1260	}	2033	}
1261	}	2034	}
1262		2035
1263	Coro::cede;	2036	$f->resolve_delayed_derefs;
1264		2037
		2038	cf::cede_to_tick;
1265	# now do the right thing for maps	2039	# now do the right thing for maps
1266	$self->link_multipart_objects;	2040	$self->link_multipart_objects;
1267
1268	if ($self->{path}->is_style_map) {
1269	$self->{deny_save} = 1;
1270	$self->{deny_reset} = 1;
1271	} else {
1272	$self->fix_auto_apply;
1273	$self->decay_objects;
1274	$self->update_buttons;
1275	$self->set_darkness_map;
1276	$self->difficulty ($self->estimate_difficulty)	2041	$self->difficulty ($self->estimate_difficulty)
1277	unless $self->difficulty;	2042	unless $self->difficulty;
		2043	cf::cede_to_tick;
		2044
		2045	unless ($self->{deny_activate}) {
		2046	$self->decay_objects;
		2047	$self->fix_auto_apply;
		2048	$self->update_buttons;
		2049	cf::cede_to_tick;
1278	$self->activate;	2050	$self->activate;
1279	}	2051	}
1280		2052
1281	Coro::cede;	2053	$self->{last_save} = $cf::RUNTIME;
		2054	$self->last_access ($cf::RUNTIME);
1282		2055
1283	$self->in_memory (cf::MAP_IN_MEMORY);	2056	$self->in_memory (cf::MAP_ACTIVE);
		2057	}
		2058
		2059	$self->post_load;
		2060	}
		2061
		2062	sub customise_for {
		2063	my ($self, $ob) = @_;
		2064
		2065	return find "~" . $ob->name . "/" . $self->{path}
		2066	if $self->per_player;
		2067
		2068	# return find "?party/" . $ob->name . "/" . $self->{path}
		2069	# if $self->per_party;
		2070
		2071	$self
		2072	}
		2073
		2074	# find and load all maps in the 3x3 area around a map
		2075	sub load_neighbours {
		2076	my ($map) = @_;
		2077
		2078	my @neigh; # diagonal neighbours
		2079
		2080	for (0 .. 3) {
		2081	my $neigh = $map->tile_path ($_)
		2082	or next;
		2083	$neigh = find $neigh, $map
		2084	or next;
		2085	$neigh->load;
		2086
		2087	push @neigh,
		2088	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2089	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2090	}
		2091
		2092	for (grep defined $_->[0], @neigh) {
		2093	my ($path, $origin) = @$_;
		2094	my $neigh = find $path, $origin
		2095	or next;
		2096	$neigh->load;
		2097	}
1284	}	2098	}
1285		2099
1286	sub find_sync {	2100	sub find_sync {
1287	my ($path, $origin) = @_;	2101	my ($path, $origin) = @_;
1288		2102
1289	cf::sync_job { cf::map::find $path, $origin }	2103	cf::sync_job { find $path, $origin }
1290	}	2104	}
1291		2105
1292	sub do_load_sync {	2106	sub do_load_sync {
1293	my ($map) = @_;	2107	my ($map) = @_;
1294		2108
		2109	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2110	if $Coro::current == $Coro::main;
		2111
1295	cf::sync_job { $map->load };	2112	cf::sync_job { $map->load };
		2113	}
		2114
		2115	our %MAP_PREFETCH;
		2116	our $MAP_PREFETCHER = undef;
		2117
		2118	sub find_async {
		2119	my ($path, $origin, $load) = @_;
		2120
		2121	$path = normalise $path, $origin && $origin->{path};
		2122
		2123	if (my $map = $cf::MAP{$path}) {
		2124	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2125	}
		2126
		2127	$MAP_PREFETCH{$path} |= $load;
		2128
		2129	$MAP_PREFETCHER ||= cf::async {
		2130	$Coro::current->{desc} = "map prefetcher";
		2131
		2132	while (%MAP_PREFETCH) {
		2133	while (my ($k, $v) = each %MAP_PREFETCH) {
		2134	if (my $map = find $k) {
		2135	$map->load if $v;
		2136	}
		2137
		2138	delete $MAP_PREFETCH{$k};
		2139	}
		2140	}
		2141	undef $MAP_PREFETCHER;
		2142	};
		2143	$MAP_PREFETCHER->prio (6);
		2144
		2145	()
1296	}	2146	}
1297		2147
1298	sub save {	2148	sub save {
1299	my ($self) = @_;	2149	my ($self) = @_;
1300		2150
		2151	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2152
1301	$self->{last_save} = $cf::RUNTIME;	2153	$self->{last_save} = $cf::RUNTIME;
1302		2154
1303	return unless $self->dirty;	2155	return unless $self->dirty;
1304		2156
1305	my $save = $self->{path}->save_path; utf8::encode $save;	2157	my $save = $self->save_path; utf8::encode $save;
1306	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2158	my $uniq = $self->uniq_path; utf8::encode $uniq;
1307		2159
1308	$self->{load_path} = $save;	2160	$self->{load_path} = $save;
1309		2161
1310	return if $self->{deny_save};	2162	return if $self->{deny_save};
1311		2163
1312	local $self->{last_access} = $self->last_access;#d#	2164	local $self->{last_access} = $self->last_access;#d#
1313		2165
		2166	cf::async {
		2167	$Coro::current->{desc} = "map player save";
		2168	$_->contr->save for $self->players;
		2169	};
		2170
		2171	cf::get_slot 0.02;
		2172
1314	if ($uniq) {	2173	if ($uniq) {
1315	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2174	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1316	$self->save_objects ($uniq, cf::IO_UNIQUES);	2175	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1317	} else {	2176	} else {
1318	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2177	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1319	}	2178	}
1320	}	2179	}
1321		2180
1322	sub swap_out {	2181	sub swap_out {
1323	my ($self) = @_;	2182	my ($self) = @_;
1324		2183
1325	# save first because save cedes	2184	# save first because save cedes
1326	$self->save;	2185	$self->save;
1327		2186
		2187	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2188
1328	return if $self->players;	2189	return if $self->players;
1329	return if $self->in_memory != cf::MAP_IN_MEMORY;	2190	return if $self->in_memory != cf::MAP_ACTIVE;
1330	return if $self->{deny_save};	2191	return if $self->{deny_save};
1331		2192
		2193	$self->in_memory (cf::MAP_SWAPPED);
		2194
		2195	$self->deactivate;
		2196	$_->clear_links_to ($self) for values %cf::MAP;
1332	$self->clear;	2197	$self->clear;
1333	$self->in_memory (cf::MAP_SWAPPED);
1334	}	2198	}
1335		2199
1336	sub reset_at {	2200	sub reset_at {
1337	my ($self) = @_;	2201	my ($self) = @_;
1338		2202
1339	# TODO: safety, remove and allow resettable per-player maps	2203	# TODO: safety, remove and allow resettable per-player maps
1340	return 1e99 if $self->{path}{user_rel};
1341	return 1e99 if $self->{deny_reset};	2204	return 1e99 if $self->{deny_reset};
1342		2205
1343	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2206	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2207	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1345		2208
…		…
1350	my ($self) = @_;	2213	my ($self) = @_;
1351		2214
1352	$self->reset_at <= $cf::RUNTIME	2215	$self->reset_at <= $cf::RUNTIME
1353	}	2216	}
1354		2217
1355	sub unlink_save {
1356	my ($self) = @_;
1357
1358	utf8::encode (my $save = $self->{path}->save_path);
1359	aioreq_pri 3; IO::AIO::aio_unlink $save;
1360	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1361	}
1362
1363	sub rename {
1364	my ($self, $new_path) = @_;
1365
1366	$self->unlink_save;
1367
1368	delete $cf::MAP{$self->path};
1369	$self->{path} = new cf::path $new_path;
1370	$self->path ($self->{path}->as_string);
1371	$cf::MAP{$self->path} = $self;
1372
1373	$self->save;
1374	}
1375
1376	sub reset {	2218	sub reset {
1377	my ($self) = @_;	2219	my ($self) = @_;
1378		2220
		2221	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2222
1379	return if $self->players;	2223	return if $self->players;
1380	return if $self->{path}{user_rel};#d#
1381		2224
1382	warn "resetting map ", $self->path;#d#	2225	warn "resetting map ", $self->path;
		2226
		2227	$self->in_memory (cf::MAP_SWAPPED);
		2228
		2229	# need to save uniques path
		2230	unless ($self->{deny_save}) {
		2231	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2232
		2233	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2234	if $uniq;
		2235	}
1383		2236
1384	delete $cf::MAP{$self->path};	2237	delete $cf::MAP{$self->path};
1385		2238
		2239	$self->deactivate;
1386	$_->clear_links_to ($self) for values %cf::MAP;	2240	$_->clear_links_to ($self) for values %cf::MAP;
		2241	$self->clear;
1387		2242
1388	$self->unlink_save;	2243	$self->unlink_save;
1389	$self->destroy;	2244	$self->destroy;
1390	}	2245	}
1391		2246
1392	my $nuke_counter = "aaaa";	2247	my $nuke_counter = "aaaa";
1393		2248
1394	sub nuke {	2249	sub nuke {
1395	my ($self) = @_;	2250	my ($self) = @_;
1396		2251
		2252	{
		2253	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2254
		2255	delete $cf::MAP{$self->path};
		2256
		2257	$self->unlink_save;
		2258
		2259	bless $self, "cf::map";
		2260	delete $self->{deny_reset};
1397	$self->{deny_save} = 1;	2261	$self->{deny_save} = 1;
1398	$self->reset_timeout (1);	2262	$self->reset_timeout (1);
1399	$self->rename ("{nuke}/" . ($nuke_counter++));	2263	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2264
		2265	$cf::MAP{$self->path} = $self;
		2266	}
		2267
1400	$self->reset; # polite request, might not happen	2268	$self->reset; # polite request, might not happen
1401	}	2269	}
1402		2270
1403	sub customise_for {	2271	=item $maps = cf::map::tmp_maps
1404	my ($map, $ob) = @_;
1405		2272
1406	if ($map->per_player) {	2273	Returns an arrayref with all map paths of currently instantiated and saved
1407	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2274	maps. May block.
		2275
		2276	=cut
		2277
		2278	sub tmp_maps() {
1408	}	2279	[
1409		2280	map {
1410	$map	2281	utf8::decode $_;
		2282	/\.map$/
		2283	? normalise $_
		2284	: ()
		2285	} @{ aio_readdir $TMPDIR or [] }
		2286	]
1411	}	2287	}
1412		2288
1413	sub emergency_save {	2289	=item $maps = cf::map::random_maps
1414	my $freeze_guard = cf::freeze_mainloop;
1415		2290
1416	warn "enter emergency map save\n";	2291	Returns an arrayref with all map paths of currently instantiated and saved
		2292	random maps. May block.
1417		2293
1418	cf::sync_job {	2294	=cut
1419	warn "begin emergency map save\n";	2295
1420	$_->save for values %cf::MAP;	2296	sub random_maps() {
		2297	[
		2298	map {
		2299	utf8::decode $_;
		2300	/\.map$/
		2301	? normalise "?random/$_"
		2302	: ()
		2303	} @{ aio_readdir $RANDOMDIR or [] }
		2304	]
		2305	}
		2306
		2307	=item cf::map::unique_maps
		2308
		2309	Returns an arrayref of paths of all shared maps that have
		2310	instantiated unique items. May block.
		2311
		2312	=cut
		2313
		2314	sub unique_maps() {
		2315	[
		2316	map {
		2317	utf8::decode $_;
		2318	s/\.map$//; # TODO future compatibility hack
		2319	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2320	? ()
		2321	: normalise $_
		2322	} @{ aio_readdir $UNIQUEDIR or [] }
		2323	]
		2324	}
		2325
		2326	=back
		2327
		2328	=head3 cf::object
		2329
		2330	=cut
		2331
		2332	package cf::object;
		2333
		2334	=over 4
		2335
		2336	=item $ob->inv_recursive
		2337
		2338	Returns the inventory of the object I<and> their inventories, recursively,
		2339	but I<not> the object itself.
		2340
		2341	=cut
		2342
		2343	sub inv_recursive_;
		2344	sub inv_recursive_ {
		2345	map { $_, inv_recursive_ $_->inv } @_
		2346	}
		2347
		2348	sub inv_recursive {
		2349	inv_recursive_ inv $_[0]
		2350	}
		2351
		2352	=item $ref = $ob->ref
		2353
		2354	Creates and returns a persistent reference to an object that can be stored as a string.
		2355
		2356	=item $ob = cf::object::deref ($refstring)
		2357
		2358	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2359	even if the object actually exists. May block.
		2360
		2361	=cut
		2362
		2363	sub deref {
		2364	my ($ref) = @_;
		2365
		2366	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2367	my ($uuid, $name) = ($1, $2);
		2368	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2369	or return;
		2370	$pl->ob->uuid eq $uuid
		2371	or return;
		2372
		2373	$pl->ob
		2374	} else {
		2375	warn "$ref: cannot resolve object reference\n";
		2376	undef
1421	};	2377	}
1422
1423	warn "end emergency map save\n";
1424	}	2378	}
1425		2379
1426	package cf;	2380	package cf;
1427		2381
1428	=back	2382	=back
1429
1430		2383
1431	=head3 cf::object::player	2384	=head3 cf::object::player
1432		2385
1433	=over 4	2386	=over 4
1434		2387
…		…
1437	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2390	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1438	can be C<undef>. Does the right thing when the player is currently in a	2391	can be C<undef>. Does the right thing when the player is currently in a
1439	dialogue with the given NPC character.	2392	dialogue with the given NPC character.
1440		2393
1441	=cut	2394	=cut
		2395
		2396	our $SAY_CHANNEL = {
		2397	id => "say",
		2398	title => "Map",
		2399	reply => "say ",
		2400	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2401	};
		2402
		2403	our $CHAT_CHANNEL = {
		2404	id => "chat",
		2405	title => "Chat",
		2406	reply => "chat ",
		2407	tooltip => "Player chat and shouts, global to the server.",
		2408	};
1442		2409
1443	# rough implementation of a future "reply" method that works	2410	# rough implementation of a future "reply" method that works
1444	# with dialog boxes.	2411	# with dialog boxes.
1445	#TODO: the first argument must go, split into a $npc->reply_to ( method	2412	#TODO: the first argument must go, split into a $npc->reply_to ( method
1446	sub cf::object::player::reply($$$;$) {	2413	sub cf::object::player::reply($$$;$) {
…		…
1448		2415
1449	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2416	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1450		2417
1451	if ($self->{record_replies}) {	2418	if ($self->{record_replies}) {
1452	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2419	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2420
1453	} else {	2421	} else {
		2422	my $pl = $self->contr;
		2423
		2424	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2425	my $dialog = $pl->{npc_dialog};
		2426	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2427
		2428	} else {
1454	$msg = $npc->name . " says: $msg" if $npc;	2429	$msg = $npc->name . " says: $msg" if $npc;
1455	$self->message ($msg, $flags);	2430	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2431	}
1456	}	2432	}
		2433	}
		2434
		2435	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2436
		2437	=cut
		2438
		2439	sub cf::object::send_msg {
		2440	my $pl = shift->contr
		2441	or return;
		2442	$pl->send_msg (@_);
1457	}	2443	}
1458		2444
1459	=item $player_object->may ("access")	2445	=item $player_object->may ("access")
1460		2446
1461	Returns wether the given player is authorized to access resource "access"	2447	Returns wether the given player is authorized to access resource "access"
…		…
1474		2460
1475	=item $player_object->enter_link	2461	=item $player_object->enter_link
1476		2462
1477	Freezes the player and moves him/her to a special map (C<{link}>).	2463	Freezes the player and moves him/her to a special map (C<{link}>).
1478		2464
1479	The player should be reaosnably safe there for short amounts of time. You	2465	The player should be reasonably safe there for short amounts of time (e.g.
1480	I<MUST> call C<leave_link> as soon as possible, though.	2466	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2467	though, as the palyer cannot control the character while it is on the link
		2468	map.
		2469
		2470	Will never block.
1481		2471
1482	=item $player_object->leave_link ($map, $x, $y)	2472	=item $player_object->leave_link ($map, $x, $y)
1483		2473
1484	Moves the player out of the specila link map onto the given map. If the	2474	Moves the player out of the special C<{link}> map onto the specified
1485	map is not valid (or omitted), the player will be moved back to the	2475	map. If the map is not valid (or omitted), the player will be moved back
1486	location he/she was before the call to C<enter_link>, or, if that fails,	2476	to the location he/she was before the call to C<enter_link>, or, if that
1487	to the emergency map position.	2477	fails, to the emergency map position.
1488		2478
1489	Might block.	2479	Might block.
1490		2480
1491	=cut	2481	=cut
		2482
		2483	sub link_map {
		2484	unless ($LINK_MAP) {
		2485	$LINK_MAP = cf::map::find "{link}"
		2486	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2487	$LINK_MAP->load;
		2488	}
		2489
		2490	$LINK_MAP
		2491	}
1492		2492
1493	sub cf::object::player::enter_link {	2493	sub cf::object::player::enter_link {
1494	my ($self) = @_;	2494	my ($self) = @_;
1495		2495
1496	$self->deactivate_recursive;	2496	$self->deactivate_recursive;
1497		2497
1498	return if $self->map == $LINK_MAP;	2498	return if UNIVERSAL::isa $self->map, "ext::map_link";
1499		2499
1500	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2500	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1501	if $self->map;	2501	if $self->map && $self->map->{path} ne "{link}";
1502		2502
1503	$self->enter_map ($LINK_MAP, 20, 20);	2503	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1504	}	2504	}
1505		2505
1506	sub cf::object::player::leave_link {	2506	sub cf::object::player::leave_link {
1507	my ($self, $map, $x, $y) = @_;	2507	my ($self, $map, $x, $y) = @_;
		2508
		2509	return unless $self->contr->active;
1508		2510
1509	my $link_pos = delete $self->{_link_pos};	2511	my $link_pos = delete $self->{_link_pos};
1510		2512
1511	unless ($map) {	2513	unless ($map) {
1512	# restore original map position	2514	# restore original map position
…		…
1526	# use -1 or undef as default coordinates, not 0, 0	2528	# use -1 or undef as default coordinates, not 0, 0
1527	($x, $y) = ($map->enter_x, $map->enter_y)	2529	($x, $y) = ($map->enter_x, $map->enter_y)
1528	if $x <=0 && $y <= 0;	2530	if $x <=0 && $y <= 0;
1529		2531
1530	$map->load;	2532	$map->load;
		2533	$map->load_neighbours;
1531		2534
		2535	return unless $self->contr->active;
		2536
		2537	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2538	$self->enter_map ($map, $x, $y);
		2539
		2540	# only activate afterwards, to support waiting in hooks
1532	$self->activate_recursive;	2541	$self->activate_recursive;
1533	$self->enter_map ($map, $x, $y);
1534	}	2542	}
1535		2543
1536	cf::player->attach (	2544	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1537	on_logout => sub {
1538	my ($pl) = @_;
1539		2545
1540	# abort map switching before logout	2546	Moves the player to the given map-path and coordinates by first freezing
1541	if ($pl->ob->{_link_pos}) {	2547	her, loading and preparing them map, calling the provided $check callback
1542	cf::sync_job {	2548	that has to return the map if sucecssful, and then unfreezes the player on
1543	$pl->ob->leave_link	2549	the new (success) or old (failed) map position. In either case, $done will
1544	};	2550	be called at the end of this process.
1545	}
1546	},
1547	on_login => sub {
1548	my ($pl) = @_;
1549		2551
1550	# try to abort aborted map switching on player login :)	2552	Note that $check will be called with a potentially non-loaded map, so if
1551	# should happen only on crashes	2553	it needs a loaded map it has to call C<< ->load >>.
1552	if ($pl->ob->{_link_pos}) {
1553	$pl->ob->enter_link;
1554	cf::async {
1555	# we need this sleep as the login has a concurrent enter_exit running
1556	# and this sleep increases chances of the player not ending up in scorn
1557	Coro::Timer::sleep 1;
1558	$pl->ob->leave_link;
1559	};
1560	}
1561	},
1562	);
1563		2554
1564	=item $player_object->goto ($path, $x, $y)
1565
1566	=cut	2555	=cut
		2556
		2557	our $GOTOGEN;
1567		2558
1568	sub cf::object::player::goto {	2559	sub cf::object::player::goto {
1569	my ($self, $path, $x, $y) = @_;	2560	my ($self, $path, $x, $y, $check, $done) = @_;
		2561
		2562	# do generation counting so two concurrent goto's will be executed in-order
		2563	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1570		2564
1571	$self->enter_link;	2565	$self->enter_link;
1572		2566
1573	(cf::async {	2567	(async {
1574	$path = new cf::path $path;	2568	$Coro::current->{desc} = "player::goto $path $x $y";
1575		2569
1576	my $map = cf::map::find $path->as_string;	2570	# *tag paths override both path and x|y
		2571	if ($path =~ /^\*(.*)$/) {
		2572	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2573	my $ob = $obs[rand @obs];
		2574
		2575	# see if we actually can go there
		2576	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2577	$ob = $obs[rand @obs];
		2578	} else {
		2579	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2580	}
		2581	# else put us there anyways for now #d#
		2582
		2583	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2584	} else {
		2585	($path, $x, $y) = (undef, undef, undef);
		2586	}
		2587	}
		2588
		2589	my $map = eval {
		2590	my $map = defined $path ? cf::map::find $path : undef;
		2591
		2592	if ($map) {
1577	$map = $map->customise_for ($self) if $map;	2593	$map = $map->customise_for ($self);
1578		2594	$map = $check->($map) if $check && $map;
1579	# warn "entering ", $map->path, " at ($x, $y)\n"	2595	} else {
1580	# if $map;
1581
1582	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2596	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2597	}
1583		2598
		2599	$map
		2600	};
		2601
		2602	if ($@) {
		2603	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2604	LOG llevError | logBacktrace, Carp::longmess $@;
		2605	}
		2606
		2607	if ($gen == $self->{_goto_generation}) {
		2608	delete $self->{_goto_generation};
1584	$self->leave_link ($map, $x, $y);	2609	$self->leave_link ($map, $x, $y);
		2610	}
		2611
		2612	$done->() if $done;
1585	})->prio (1);	2613	})->prio (1);
1586	}	2614	}
1587		2615
1588	=item $player_object->enter_exit ($exit_object)	2616	=item $player_object->enter_exit ($exit_object)
1589		2617
…		…
1591		2619
1592	sub parse_random_map_params {	2620	sub parse_random_map_params {
1593	my ($spec) = @_;	2621	my ($spec) = @_;
1594		2622
1595	my $rmp = { # defaults	2623	my $rmp = { # defaults
1596	xsize => 10,	2624	xsize => (cf::rndm 15, 40),
1597	ysize => 10,	2625	ysize => (cf::rndm 15, 40),
		2626	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2627	#layout => string,
1598	};	2628	};
1599		2629
1600	for (split /\n/, $spec) {	2630	for (split /\n/, $spec) {
1601	my ($k, $v) = split /\s+/, $_, 2;	2631	my ($k, $v) = split /\s+/, $_, 2;
1602		2632
…		…
1614	# that depends on the exit object	2644	# that depends on the exit object
1615		2645
1616	my $rmp = parse_random_map_params $exit->msg;	2646	my $rmp = parse_random_map_params $exit->msg;
1617		2647
1618	if ($exit->map) {	2648	if ($exit->map) {
1619	$rmp->{region} = $exit->map->region_name;	2649	$rmp->{region} = $exit->region->name;
1620	$rmp->{origin_map} = $exit->map->path;	2650	$rmp->{origin_map} = $exit->map->path;
1621	$rmp->{origin_x} = $exit->x;	2651	$rmp->{origin_x} = $exit->x;
1622	$rmp->{origin_y} = $exit->y;	2652	$rmp->{origin_y} = $exit->y;
		2653
		2654	$exit->map->touch;
1623	}	2655	}
1624		2656
1625	$rmp->{random_seed} ||= $exit->random_seed;	2657	$rmp->{random_seed} ||= $exit->random_seed;
1626		2658
1627	my $data = cf::to_json $rmp;	2659	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1628	my $md5 = Digest::MD5::md5_hex $data;	2660	my $md5 = Digest::MD5::md5_hex $data;
		2661	my $meta = "$RANDOMDIR/$md5.meta";
1629		2662
1630	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2663	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1631	aio_write $fh, 0, (length $data), $data, 0;	2664	aio_write $fh, 0, (length $data), $data, 0;
		2665	undef $fh;
		2666	aio_rename "$meta~", $meta;
1632		2667
		2668	my $slaying = "?random/$md5";
		2669
		2670	if ($exit->valid) {
1633	$exit->slaying ("?random/$md5");	2671	$exit->slaying ("?random/$md5");
1634	$exit->msg (undef);	2672	$exit->msg (undef);
		2673	}
1635	}	2674	}
1636	}	2675	}
1637		2676
1638	sub cf::object::player::enter_exit {	2677	sub cf::object::player::enter_exit {
1639	my ($self, $exit) = @_;	2678	my ($self, $exit) = @_;
1640		2679
1641	return unless $self->type == cf::PLAYER;	2680	return unless $self->type == cf::PLAYER;
1642		2681
1643	$self->enter_link;	2682	$self->enter_link;
1644		2683
1645	(cf::async {	2684	(async {
1646	$self->deactivate_recursive; # just to be sure	2685	$Coro::current->{desc} = "enter_exit";
		2686
1647	unless (eval {	2687	unless (eval {
		2688	$self->deactivate_recursive; # just to be sure
		2689
		2690	# random map handling
		2691	{
		2692	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2693
1648	prepare_random_map $exit	2694	prepare_random_map $exit
1649	if $exit->slaying eq "/!";	2695	if $exit->slaying eq "/!";
		2696	}
1650		2697
1651	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2698	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1652	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2699	my $x = $exit->stats->hp;
		2700	my $y = $exit->stats->sp;
1653		2701
		2702	$self->goto ($map, $x, $y);
		2703
		2704	# if exit is damned, update players death & WoR home-position
		2705	$self->contr->savebed ($map, $x, $y)
		2706	if $exit->flag (cf::FLAG_DAMNED);
		2707
1654	1;	2708	1
1655	}) {	2709	}) {
1656	$self->message ("Something went wrong deep within the crossfire server. "	2710	$self->message ("Something went wrong deep within the deliantra server. "
1657	. "I'll try to bring you back to the map you were before. "	2711	. "I'll try to bring you back to the map you were before. "
1658	. "Please report this to the dungeon master",	2712	. "Please report this to the dungeon master!",
1659	cf::NDI_UNIQUE | cf::NDI_RED);	2713	cf::NDI_UNIQUE | cf::NDI_RED);
1660		2714
1661	warn "ERROR in enter_exit: $@";	2715	warn "ERROR in enter_exit: $@";
1662	$self->leave_link;	2716	$self->leave_link;
1663	}	2717	}
1664	})->prio (1);	2718	})->prio (1);
…		…
1677		2731
1678	sub cf::client::send_drawinfo {	2732	sub cf::client::send_drawinfo {
1679	my ($self, $text, $flags) = @_;	2733	my ($self, $text, $flags) = @_;
1680		2734
1681	utf8::encode $text;	2735	utf8::encode $text;
1682	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2736	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1683	}	2737	}
1684		2738
		2739	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2740
		2741	Send a drawinfo or msg packet to the client, formatting the msg for the
		2742	client if neccessary. C<$type> should be a string identifying the type of
		2743	the message, with C<log> being the default. If C<$color> is negative, suppress
		2744	the message unless the client supports the msg packet.
		2745
		2746	=cut
		2747
		2748	# non-persistent channels (usually the info channel)
		2749	our %CHANNEL = (
		2750	"c/identify" => {
		2751	id => "infobox",
		2752	title => "Identify",
		2753	reply => undef,
		2754	tooltip => "Items recently identified",
		2755	},
		2756	"c/examine" => {
		2757	id => "infobox",
		2758	title => "Examine",
		2759	reply => undef,
		2760	tooltip => "Signs and other items you examined",
		2761	},
		2762	"c/book" => {
		2763	id => "infobox",
		2764	title => "Book",
		2765	reply => undef,
		2766	tooltip => "The contents of a note or book",
		2767	},
		2768	"c/lookat" => {
		2769	id => "infobox",
		2770	title => "Look",
		2771	reply => undef,
		2772	tooltip => "What you saw there",
		2773	},
		2774	"c/who" => {
		2775	id => "infobox",
		2776	title => "Players",
		2777	reply => undef,
		2778	tooltip => "Shows players who are currently online",
		2779	},
		2780	"c/body" => {
		2781	id => "infobox",
		2782	title => "Body Parts",
		2783	reply => undef,
		2784	tooltip => "Shows which body parts you posess and are available",
		2785	},
		2786	"c/statistics" => {
		2787	id => "infobox",
		2788	title => "Statistics",
		2789	reply => undef,
		2790	tooltip => "Shows your primary statistics",
		2791	},
		2792	"c/skills" => {
		2793	id => "infobox",
		2794	title => "Skills",
		2795	reply => undef,
		2796	tooltip => "Shows your experience per skill and item power",
		2797	},
		2798	"c/shopitems" => {
		2799	id => "infobox",
		2800	title => "Shop Items",
		2801	reply => undef,
		2802	tooltip => "Shows the items currently for sale in this shop",
		2803	},
		2804	"c/resistances" => {
		2805	id => "infobox",
		2806	title => "Resistances",
		2807	reply => undef,
		2808	tooltip => "Shows your resistances",
		2809	},
		2810	"c/pets" => {
		2811	id => "infobox",
		2812	title => "Pets",
		2813	reply => undef,
		2814	tooltip => "Shows information abotu your pets/a specific pet",
		2815	},
		2816	"c/perceiveself" => {
		2817	id => "infobox",
		2818	title => "Perceive Self",
		2819	reply => undef,
		2820	tooltip => "You gained detailed knowledge about yourself",
		2821	},
		2822	"c/uptime" => {
		2823	id => "infobox",
		2824	title => "Uptime",
		2825	reply => undef,
		2826	tooltip => "How long the server has been running since last restart",
		2827	},
		2828	"c/mapinfo" => {
		2829	id => "infobox",
		2830	title => "Map Info",
		2831	reply => undef,
		2832	tooltip => "Information related to the maps",
		2833	},
		2834	"c/party" => {
		2835	id => "party",
		2836	title => "Party",
		2837	reply => "gsay ",
		2838	tooltip => "Messages and chat related to your party",
		2839	},
		2840	"c/death" => {
		2841	id => "death",
		2842	title => "Death",
		2843	reply => undef,
		2844	tooltip => "Reason for and more info about your most recent death",
		2845	},
		2846	"c/say" => $SAY_CHANNEL,
		2847	"c/chat" => $CHAT_CHANNEL,
		2848	);
		2849
		2850	sub cf::client::send_msg {
		2851	my ($self, $channel, $msg, $color, @extra) = @_;
		2852
		2853	$msg = $self->pl->expand_cfpod ($msg)
		2854	unless $color & cf::NDI_VERBATIM;
		2855
		2856	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2857
		2858	# check predefined channels, for the benefit of C
		2859	if ($CHANNEL{$channel}) {
		2860	$channel = $CHANNEL{$channel};
		2861
		2862	$self->ext_msg (channel_info => $channel);
		2863	$channel = $channel->{id};
		2864
		2865	} elsif (ref $channel) {
		2866	# send meta info to client, if not yet sent
		2867	unless (exists $self->{channel}{$channel->{id}}) {
		2868	$self->{channel}{$channel->{id}} = $channel;
		2869	$self->ext_msg (channel_info => $channel);
		2870	}
		2871
		2872	$channel = $channel->{id};
		2873	}
		2874
		2875	return unless @extra || length $msg;
		2876
		2877	# default colour, mask it out
		2878	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2879	if $color & cf::NDI_DEF;
		2880
		2881	my $pkt = "msg "
		2882	. $self->{json_coder}->encode (
		2883	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2884	);
		2885
		2886	# try lzf for large packets
		2887	$pkt = "lzf " . Compress::LZF::compress $pkt
		2888	if 1024 <= length $pkt and $self->{can_lzf};
		2889
		2890	# split very large packets
		2891	if (8192 < length $pkt and $self->{can_lzf}) {
		2892	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2893	$pkt = "frag";
		2894	}
		2895
		2896	$self->send_packet ($pkt);
		2897	}
		2898
		2899	=item $client->ext_msg ($type, @msg)
		2900
		2901	Sends an ext event to the client.
		2902
		2903	=cut
		2904
		2905	sub cf::client::ext_msg($$@) {
		2906	my ($self, $type, @msg) = @_;
		2907
		2908	if ($self->extcmd == 2) {
		2909	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2910	} elsif ($self->extcmd == 1) { # TODO: remove
		2911	push @msg, msgtype => "event_$type";
		2912	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2913	}
		2914	}
		2915
		2916	=item $client->ext_reply ($msgid, @msg)
		2917
		2918	Sends an ext reply to the client.
		2919
		2920	=cut
		2921
		2922	sub cf::client::ext_reply($$@) {
		2923	my ($self, $id, @msg) = @_;
		2924
		2925	if ($self->extcmd == 2) {
		2926	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2927	} elsif ($self->extcmd == 1) {
		2928	#TODO: version 1, remove
		2929	unshift @msg, msgtype => "reply", msgid => $id;
		2930	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2931	}
		2932	}
1685		2933
1686	=item $success = $client->query ($flags, "text", \&cb)	2934	=item $success = $client->query ($flags, "text", \&cb)
1687		2935
1688	Queues a query to the client, calling the given callback with	2936	Queues a query to the client, calling the given callback with
1689	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2937	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1690	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2938	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1691		2939
1692	Queries can fail, so check the return code. Or don't, as queries will become	2940	Queries can fail, so check the return code. Or don't, as queries will
1693	reliable at some point in the future.	2941	become reliable at some point in the future.
1694		2942
1695	=cut	2943	=cut
1696		2944
1697	sub cf::client::query {	2945	sub cf::client::query {
1698	my ($self, $flags, $text, $cb) = @_;	2946	my ($self, $flags, $text, $cb) = @_;
…		…
1706	utf8::encode $text;	2954	utf8::encode $text;
1707	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2955	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1708		2956
1709	$self->send_packet ($self->{query_queue}[0][0])	2957	$self->send_packet ($self->{query_queue}[0][0])
1710	if @{ $self->{query_queue} } == 1;	2958	if @{ $self->{query_queue} } == 1;
		2959
		2960	1
1711	}	2961	}
1712		2962
1713	cf::client->attach (	2963	cf::client->attach (
		2964	on_connect => sub {
		2965	my ($ns) = @_;
		2966
		2967	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2968	},
1714	on_reply => sub {	2969	on_reply => sub {
1715	my ($ns, $msg) = @_;	2970	my ($ns, $msg) = @_;
1716		2971
1717	# this weird shuffling is so that direct followup queries	2972	# this weird shuffling is so that direct followup queries
1718	# get handled first	2973	# get handled first
1719	my $queue = delete $ns->{query_queue}	2974	my $queue = delete $ns->{query_queue}
1720	or return; # be conservative, not sure how that can happen, but we saw a crash here	2975	or return; # be conservative, not sure how that can happen, but we saw a crash here
1721		2976
1722	(shift @$queue)->[1]->($msg);	2977	(shift @$queue)->[1]->($msg);
		2978	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1723		2979
1724	push @{ $ns->{query_queue} }, @$queue;	2980	push @{ $ns->{query_queue} }, @$queue;
1725		2981
1726	if (@{ $ns->{query_queue} } == @$queue) {	2982	if (@{ $ns->{query_queue} } == @$queue) {
1727	if (@$queue) {	2983	if (@$queue) {
…		…
1729	} else {	2985	} else {
1730	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2986	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1731	}	2987	}
1732	}	2988	}
1733	},	2989	},
		2990	on_exticmd => sub {
		2991	my ($ns, $buf) = @_;
		2992
		2993	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2994
		2995	if (ref $msg) {
		2996	my ($type, $reply, @payload) =
		2997	"ARRAY" eq ref $msg
		2998	? @$msg
		2999	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3000
		3001	my @reply;
		3002
		3003	if (my $cb = $EXTICMD{$type}) {
		3004	@reply = $cb->($ns, @payload);
		3005	}
		3006
		3007	$ns->ext_reply ($reply, @reply)
		3008	if $reply;
		3009
		3010	} else {
		3011	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3012	}
		3013
		3014	cf::override;
		3015	},
1734	);	3016	);
1735		3017
1736	=item $client->coro (\&cb)	3018	=item $client->async (\&cb)
1737		3019
1738	Create a new coroutine, running the specified callback. The coroutine will	3020	Create a new coroutine, running the specified callback. The coroutine will
1739	be automatically cancelled when the client gets destroyed (e.g. on logout,	3021	be automatically cancelled when the client gets destroyed (e.g. on logout,
1740	or loss of connection).	3022	or loss of connection).
1741		3023
1742	=cut	3024	=cut
1743		3025
1744	sub cf::client::coro {	3026	sub cf::client::async {
1745	my ($self, $cb) = @_;	3027	my ($self, $cb) = @_;
1746		3028
1747	my $coro = &cf::async ($cb);	3029	my $coro = &Coro::async ($cb);
1748		3030
1749	$coro->on_destroy (sub {	3031	$coro->on_destroy (sub {
1750	delete $self->{_coro}{$coro+0};	3032	delete $self->{_coro}{$coro+0};
1751	});	3033	});
1752		3034
…		…
1779	our $safe = new Safe "safe";	3061	our $safe = new Safe "safe";
1780	our $safe_hole = new Safe::Hole;	3062	our $safe_hole = new Safe::Hole;
1781		3063
1782	$SIG{FPE} = 'IGNORE';	3064	$SIG{FPE} = 'IGNORE';
1783		3065
1784	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3066	$safe->permit_only (Opcode::opset qw(
		3067	:base_core :base_mem :base_orig :base_math
		3068	grepstart grepwhile mapstart mapwhile
		3069	sort time
		3070	));
1785		3071
1786	# here we export the classes and methods available to script code	3072	# here we export the classes and methods available to script code
1787		3073
1788	=pod	3074	=pod
1789		3075
1790	The following fucntions and emthods are available within a safe environment:	3076	The following functions and methods are available within a safe environment:
1791		3077
1792	cf::object contr pay_amount pay_player map	3078	cf::object
		3079	contr pay_amount pay_player map x y force_find force_add destroy
		3080	insert remove name archname title slaying race decrease split
		3081	value
		3082
1793	cf::object::player player	3083	cf::object::player
1794	cf::player peaceful	3084	player
1795	cf::map trigger	3085
		3086	cf::player
		3087	peaceful
		3088
		3089	cf::map
		3090	trigger
1796		3091
1797	=cut	3092	=cut
1798		3093
1799	for (	3094	for (
1800	["cf::object" => qw(contr pay_amount pay_player map)],	3095	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3096	insert remove inv nrof name archname title slaying race
		3097	decrease split destroy change_exp value msg lore send_msg)],
1801	["cf::object::player" => qw(player)],	3098	["cf::object::player" => qw(player)],
1802	["cf::player" => qw(peaceful)],	3099	["cf::player" => qw(peaceful send_msg)],
1803	["cf::map" => qw(trigger)],	3100	["cf::map" => qw(trigger)],
1804	) {	3101	) {
1805	no strict 'refs';	3102	no strict 'refs';
1806	my ($pkg, @funs) = @$_;	3103	my ($pkg, @funs) = @$_;
1807	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3104	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
1824	my ($code, %vars) = @_;	3121	my ($code, %vars) = @_;
1825		3122
1826	my $qcode = $code;	3123	my $qcode = $code;
1827	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3124	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1828	$qcode =~ s/\n/\\n/g;	3125	$qcode =~ s/\n/\\n/g;
		3126
		3127	%vars = (_dummy => 0) unless %vars;
1829		3128
1830	local $_;	3129	local $_;
1831	local @safe::cf::_safe_eval_args = values %vars;	3130	local @safe::cf::_safe_eval_args = values %vars;
1832		3131
1833	my $eval =	3132	my $eval =
…		…
1876	=back	3175	=back
1877		3176
1878	=cut	3177	=cut
1879		3178
1880	#############################################################################	3179	#############################################################################
		3180	# the server's init and main functions
1881		3181
1882	=head2 EXTENSION DATABASE SUPPORT	3182	sub load_facedata($) {
		3183	my ($path) = @_;
1883		3184
1884	Crossfire maintains a very simple database for extension use. It can	3185	# HACK to clear player env face cache, we need some signal framework
1885	currently store anything that can be serialised using Storable, which	3186	# for this (global event?)
1886	excludes objects.	3187	%ext::player_env::MUSIC_FACE_CACHE = ();
1887		3188
1888	The parameter C<$family> should best start with the name of the extension	3189	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1889	using it, it should be unique.
1890		3190
1891	=over 4	3191	warn "loading facedata from $path\n";
1892		3192
1893	=item $hashref = cf::db_get $family	3193	my $facedata;
		3194	0 < aio_load $path, $facedata
		3195	or die "$path: $!";
1894		3196
1895	Return a hashref for use by the extension C<$family>, which can be	3197	$facedata = Coro::Storable::thaw $facedata;
1896	modified. After modifications, you have to call C<cf::db_dirty> or
1897	C<cf::db_sync>.
1898		3198
1899	=item $value = cf::db_get $family => $key	3199	$facedata->{version} == 2
		3200	or cf::cleanup "$path: version mismatch, cannot proceed.";
1900		3201
1901	Returns a single value from the database	3202	# patch in the exptable
1902		3203	$facedata->{resource}{"res/exp_table"} = {
1903	=item cf::db_put $family => $hashref	3204	type => FT_RSRC,
1904		3205	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1905	Stores the given family hashref into the database. Updates are delayed, if
1906	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1907
1908	=item cf::db_put $family => $key => $value
1909
1910	Stores the given C<$value> in the family hash. Updates are delayed, if you
1911	want the data to be synced to disk immediately, use C<cf::db_sync>.
1912
1913	=item cf::db_dirty
1914
1915	Marks the database as dirty, to be updated at a later time.
1916
1917	=item cf::db_sync
1918
1919	Immediately write the database to disk I<if it is dirty>.
1920
1921	=cut
1922
1923	our $DB;
1924
1925	{
1926	my $path = cf::localdir . "/database.pst";
1927
1928	sub db_load() {
1929	$DB = stat $path ? Storable::retrieve $path : { };
1930	}
1931
1932	my $pid;
1933
1934	sub db_save() {
1935	waitpid $pid, 0 if $pid;
1936	if (0 == ($pid = fork)) {
1937	$DB->{_meta}{version} = 1;
1938	Storable::nstore $DB, "$path~";
1939	rename "$path~", $path;
1940	cf::_exit 0 if defined $pid;
1941	}
1942	}
1943
1944	my $dirty;
1945
1946	sub db_sync() {
1947	db_save if $dirty;
1948	undef $dirty;
1949	}
1950
1951	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1952	db_sync;
1953	});	3206	};
		3207	cf::cede_to_tick;
1954		3208
1955	sub db_dirty() {
1956	$dirty = 1;
1957	$idle->start;
1958	}	3209	{
		3210	my $faces = $facedata->{faceinfo};
1959		3211
1960	sub db_get($;$) {	3212	while (my ($face, $info) = each %$faces) {
1961	@_ >= 2	3213	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1962	? $DB->{$_[0]}{$_[1]}
1963	: ($DB->{$_[0]} ||= { })
1964	}
1965		3214
1966	sub db_put($$;$) {	3215	cf::face::set_visibility $idx, $info->{visibility};
1967	if (@_ >= 3) {	3216	cf::face::set_magicmap $idx, $info->{magicmap};
1968	$DB->{$_[0]}{$_[1]} = $_[2];	3217	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
1969	} else {	3218	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1970	$DB->{$_[0]} = $_[1];
1971	}
1972	db_dirty;
1973	}
1974		3219
1975	cf::global->attach (	3220	cf::cede_to_tick;
1976	prio => 10000,
1977	on_cleanup => sub {
1978	db_sync;
1979	},	3221	}
1980	);
1981	}
1982		3222
1983	#############################################################################	3223	while (my ($face, $info) = each %$faces) {
1984	# the server's main()	3224	next unless $info->{smooth};
1985		3225
1986	sub cfg_load {	3226	my $idx = cf::face::find $face
		3227	or next;
		3228
		3229	if (my $smooth = cf::face::find $info->{smooth}) {
		3230	cf::face::set_smooth $idx, $smooth;
		3231	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3232	} else {
		3233	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3234	}
		3235
		3236	cf::cede_to_tick;
		3237	}
		3238	}
		3239
		3240	{
		3241	my $anims = $facedata->{animinfo};
		3242
		3243	while (my ($anim, $info) = each %$anims) {
		3244	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3245	cf::cede_to_tick;
		3246	}
		3247
		3248	cf::anim::invalidate_all; # d'oh
		3249	}
		3250
		3251	{
		3252	# TODO: for gcfclient pleasure, we should give resources
		3253	# that gcfclient doesn't grok a >10000 face index.
		3254	my $res = $facedata->{resource};
		3255
		3256	while (my ($name, $info) = each %$res) {
		3257	if (defined $info->{type}) {
		3258	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3259	my $data;
		3260
		3261	if ($info->{type} & 1) {
		3262	# prepend meta info
		3263
		3264	my $meta = $enc->encode ({
		3265	name => $name,
		3266	%{ $info->{meta} || {} },
		3267	});
		3268
		3269	$data = pack "(w/a*)*", $meta, $info->{data};
		3270	} else {
		3271	$data = $info->{data};
		3272	}
		3273
		3274	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3275	cf::face::set_type $idx, $info->{type};
		3276	} else {
		3277	$RESOURCE{$name} = $info;
		3278	}
		3279
		3280	cf::cede_to_tick;
		3281	}
		3282	}
		3283
		3284	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3285
		3286	1
		3287	}
		3288
		3289	cf::global->attach (on_resource_update => sub {
		3290	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3291	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3292
		3293	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3294	my $sound = $soundconf->{compat}[$_]
		3295	or next;
		3296
		3297	my $face = cf::face::find "sound/$sound->[1]";
		3298	cf::sound::set $sound->[0] => $face;
		3299	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3300	}
		3301
		3302	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3303	my $face = cf::face::find "sound/$v";
		3304	cf::sound::set $k => $face;
		3305	}
		3306	}
		3307	});
		3308
		3309	register_exticmd fx_want => sub {
		3310	my ($ns, $want) = @_;
		3311
		3312	while (my ($k, $v) = each %$want) {
		3313	$ns->fx_want ($k, $v);
		3314	}
		3315	};
		3316
		3317	sub load_resource_file($) {
		3318	my $guard = lock_acquire "load_resource_file";
		3319
		3320	my $status = load_resource_file_ $_[0];
		3321	get_slot 0.1, 100;
		3322	cf::arch::commit_load;
		3323
		3324	$status
		3325	}
		3326
		3327	sub reload_regions {
		3328	# HACK to clear player env face cache, we need some signal framework
		3329	# for this (global event?)
		3330	%ext::player_env::MUSIC_FACE_CACHE = ();
		3331
		3332	load_resource_file "$MAPDIR/regions"
		3333	or die "unable to load regions file\n";
		3334
		3335	for (cf::region::list) {
		3336	$_->{match} = qr/$_->{match}/
		3337	if exists $_->{match};
		3338	}
		3339	}
		3340
		3341	sub reload_facedata {
		3342	load_facedata "$DATADIR/facedata"
		3343	or die "unable to load facedata\n";
		3344	}
		3345
		3346	sub reload_archetypes {
		3347	load_resource_file "$DATADIR/archetypes"
		3348	or die "unable to load archetypes\n";
		3349	}
		3350
		3351	sub reload_treasures {
		3352	load_resource_file "$DATADIR/treasures"
		3353	or die "unable to load treasurelists\n";
		3354	}
		3355
		3356	sub reload_resources {
		3357	warn "reloading resource files...\n";
		3358
		3359	reload_facedata;
		3360	reload_archetypes;
		3361	reload_regions;
		3362	reload_treasures;
		3363
		3364	warn "finished reloading resource files\n";
		3365	}
		3366
		3367	sub reload_config {
1987	open my $fh, "<:utf8", cf::confdir . "/config"	3368	open my $fh, "<:utf8", "$CONFDIR/config"
1988	or return;	3369	or return;
1989		3370
1990	local $/;	3371	local $/;
1991	*CFG = YAML::Syck::Load <$fh>;	3372	*CFG = YAML::Load <$fh>;
1992		3373
1993	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3374	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		3375
		3376	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3377	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
1994		3378
1995	if (exists $CFG{mlockall}) {	3379	if (exists $CFG{mlockall}) {
1996	eval {	3380	eval {
1997	$CFG{mlockall} ? &mlockall : &munlockall	3381	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1998	and die "WARNING: m(un)lockall failed: $!\n";	3382	and die "WARNING: m(un)lockall failed: $!\n";
1999	};	3383	};
2000	warn $@ if $@;	3384	warn $@ if $@;
2001	}	3385	}
2002	}	3386	}
2003		3387
		3388	sub pidfile() {
		3389	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3390	or die "$PIDFILE: $!";
		3391	flock $fh, &Fcntl::LOCK_EX
		3392	or die "$PIDFILE: flock: $!";
		3393	$fh
		3394	}
		3395
		3396	# make sure only one server instance is running at any one time
		3397	sub atomic {
		3398	my $fh = pidfile;
		3399
		3400	my $pid = <$fh>;
		3401	kill 9, $pid if $pid > 0;
		3402
		3403	seek $fh, 0, 0;
		3404	print $fh $$;
		3405	}
		3406
		3407	sub main_loop {
		3408	warn "EV::loop starting\n";
		3409	if (1) {
		3410	EV::loop;
		3411	}
		3412	warn "EV::loop returned\n";
		3413	goto &main_loop unless $REALLY_UNLOOP;
		3414	}
		3415
2004	sub main {	3416	sub main {
		3417	cf::init_globals; # initialise logging
		3418
		3419	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3420	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3421	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3422	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3423
		3424	cf::init_experience;
		3425	cf::init_anim;
		3426	cf::init_attackmess;
		3427	cf::init_dynamic;
		3428
		3429	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3430
2005	# we must not ever block the main coroutine	3431	# we must not ever block the main coroutine
2006	local $Coro::idle = sub {	3432	local $Coro::idle = sub {
2007	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3433	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2008	(Coro::unblock_sub {	3434	(async {
2009	Event::one_event;	3435	$Coro::current->{desc} = "IDLE BUG HANDLER";
2010	})->();	3436	EV::loop EV::LOOP_ONESHOT;
		3437	})->prio (Coro::PRIO_MAX);
2011	};	3438	};
2012		3439
2013	cfg_load;	3440	evthread_start IO::AIO::poll_fileno;
2014	db_load;	3441
		3442	cf::sync_job {
		3443	reload_resources;
		3444	reload_config;
		3445	db_init;
		3446
		3447	cf::load_settings;
		3448	cf::load_materials;
		3449	cf::init_uuid;
		3450	cf::init_signals;
		3451	cf::init_commands;
		3452	cf::init_skills;
		3453
		3454	cf::init_beforeplay;
		3455
		3456	atomic;
		3457
2015	load_extensions;	3458	load_extensions;
2016	Event::loop;	3459
		3460	utime time, time, $RUNTIMEFILE;
		3461
		3462	# no (long-running) fork's whatsoever before this point(!)
		3463	use POSIX ();
		3464	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3465
		3466	(pop @POST_INIT)->(0) while @POST_INIT;
		3467	};
		3468
		3469	main_loop;
2017	}	3470	}
2018		3471
2019	#############################################################################	3472	#############################################################################
2020	# initialisation	3473	# initialisation and cleanup
2021		3474
		3475	# install some emergency cleanup handlers
		3476	BEGIN {
		3477	our %SIGWATCHER = ();
		3478	for my $signal (qw(INT HUP TERM)) {
		3479	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3480	cf::cleanup "SIG$signal";
		3481	};
		3482	}
		3483	}
		3484
		3485	sub write_runtime_sync {
		3486	# first touch the runtime file to show we are still running:
		3487	# the fsync below can take a very very long time.
		3488
		3489	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3490
		3491	my $guard = cf::lock_acquire "write_runtime";
		3492
		3493	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3494	or return;
		3495
		3496	my $value = $cf::RUNTIME + 90 + 10;
		3497	# 10 is the runtime save interval, for a monotonic clock
		3498	# 60 allows for the watchdog to kill the server.
		3499
		3500	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3501	and return;
		3502
		3503	# always fsync - this file is important
		3504	aio_fsync $fh
		3505	and return;
		3506
		3507	# touch it again to show we are up-to-date
		3508	aio_utime $fh, undef, undef;
		3509
		3510	close $fh
		3511	or return;
		3512
		3513	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3514	and return;
		3515
		3516	warn "runtime file written.\n";
		3517
		3518	1
		3519	}
		3520
		3521	our $uuid_lock;
		3522	our $uuid_skip;
		3523
		3524	sub write_uuid_sync($) {
		3525	$uuid_skip ||= $_[0];
		3526
		3527	return if $uuid_lock;
		3528	local $uuid_lock = 1;
		3529
		3530	my $uuid = "$LOCALDIR/uuid";
		3531
		3532	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3533	or return;
		3534
		3535	my $value = uuid_seq uuid_cur;
		3536
		3537	unless ($value) {
		3538	warn "cowardly refusing to write zero uuid value!\n";
		3539	return;
		3540	}
		3541
		3542	my $value = uuid_str $value + $uuid_skip;
		3543	$uuid_skip = 0;
		3544
		3545	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3546	and return;
		3547
		3548	# always fsync - this file is important
		3549	aio_fsync $fh
		3550	and return;
		3551
		3552	close $fh
		3553	or return;
		3554
		3555	aio_rename "$uuid~", $uuid
		3556	and return;
		3557
		3558	warn "uuid file written ($value).\n";
		3559
		3560	1
		3561
		3562	}
		3563
		3564	sub write_uuid($$) {
		3565	my ($skip, $sync) = @_;
		3566
		3567	$sync ? write_uuid_sync $skip
		3568	: async { write_uuid_sync $skip };
		3569	}
		3570
		3571	sub emergency_save() {
		3572	my $freeze_guard = cf::freeze_mainloop;
		3573
		3574	warn "emergency_perl_save: enter\n";
		3575
		3576	cf::sync_job {
		3577	# this is a trade-off: we want to be very quick here, so
		3578	# save all maps without fsync, and later call a global sync
		3579	# (which in turn might be very very slow)
		3580	local $USE_FSYNC = 0;
		3581
		3582	# use a peculiar iteration method to avoid tripping on perl
		3583	# refcount bugs in for. also avoids problems with players
		3584	# and maps saved/destroyed asynchronously.
		3585	warn "emergency_perl_save: begin player save\n";
		3586	for my $login (keys %cf::PLAYER) {
		3587	my $pl = $cf::PLAYER{$login} or next;
		3588	$pl->valid or next;
		3589	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3590	$pl->save;
		3591	}
		3592	warn "emergency_perl_save: end player save\n";
		3593
		3594	warn "emergency_perl_save: begin map save\n";
		3595	for my $path (keys %cf::MAP) {
		3596	my $map = $cf::MAP{$path} or next;
		3597	$map->valid or next;
		3598	$map->save;
		3599	}
		3600	warn "emergency_perl_save: end map save\n";
		3601
		3602	warn "emergency_perl_save: begin database checkpoint\n";
		3603	BDB::db_env_txn_checkpoint $DB_ENV;
		3604	warn "emergency_perl_save: end database checkpoint\n";
		3605
		3606	warn "emergency_perl_save: begin write uuid\n";
		3607	write_uuid_sync 1;
		3608	warn "emergency_perl_save: end write uuid\n";
		3609	};
		3610
		3611	warn "emergency_perl_save: starting sync()\n";
		3612	IO::AIO::aio_sync sub {
		3613	warn "emergency_perl_save: finished sync()\n";
		3614	};
		3615
		3616	warn "emergency_perl_save: leave\n";
		3617	}
		3618
		3619	sub post_cleanup {
		3620	my ($make_core) = @_;
		3621
		3622	warn Carp::longmess "post_cleanup backtrace"
		3623	if $make_core;
		3624
		3625	my $fh = pidfile;
		3626	unlink $PIDFILE if <$fh> == $$;
		3627	}
		3628
		3629	# a safer delete_package, copied from Symbol
		3630	sub clear_package($) {
		3631	my $pkg = shift;
		3632
		3633	# expand to full symbol table name if needed
		3634	unless ($pkg =~ /^main::.*::$/) {
		3635	$pkg = "main$pkg" if $pkg =~ /^::/;
		3636	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3637	$pkg .= '::' unless $pkg =~ /::$/;
		3638	}
		3639
		3640	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3641	my $stem_symtab = *{$stem}{HASH};
		3642
		3643	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3644	or return;
		3645
		3646	# clear all symbols
		3647	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3648	for my $name (keys %$leaf_symtab) {
		3649	_gv_clear *{"$pkg$name"};
		3650	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3651	}
		3652	warn "cleared package $pkg\n";#d#
		3653	}
		3654
2022	sub reload() {	3655	sub do_reload_perl() {
2023	# can/must only be called in main	3656	# can/must only be called in main
2024	if ($Coro::current != $Coro::main) {	3657	if ($Coro::current != $Coro::main) {
2025	warn "can only reload from main coroutine\n";	3658	warn "can only reload from main coroutine";
2026	return;	3659	return;
2027	}	3660	}
2028		3661
		3662	return if $RELOAD++;
		3663
		3664	my $t1 = EV::time;
		3665
		3666	while ($RELOAD) {
2029	warn "reloading...";	3667	warn "reloading...";
2030		3668
2031	my $guard = freeze_mainloop;	3669	warn "entering sync_job";
		3670
		3671	cf::sync_job {
		3672	cf::write_runtime_sync; # external watchdog should not bark
2032	cf::emergency_save;	3673	cf::emergency_save;
		3674	cf::write_runtime_sync; # external watchdog should not bark
2033		3675
2034	eval {	3676	warn "syncing database to disk";
		3677	BDB::db_env_txn_checkpoint $DB_ENV;
		3678
2035	# if anything goes wrong in here, we should simply crash as we already saved	3679	# if anything goes wrong in here, we should simply crash as we already saved
2036		3680
2037	# cancel all watchers	3681	warn "flushing outstanding aio requests";
2038	for (Event::all_watchers) {	3682	while (IO::AIO::nreqs || BDB::nreqs) {
2039	$_->cancel if $_->data & WF_AUTOCANCEL;	3683	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2040	}
2041
2042	# cancel all extension coros
2043	$_->cancel for values %EXT_CORO;
2044	%EXT_CORO = ();
2045
2046	# unload all extensions
2047	for (@exts) {
2048	warn "unloading <$_>";
2049	unload_extension $_;
2050	}
2051
2052	# unload all modules loaded from $LIBDIR
2053	while (my ($k, $v) = each %INC) {
2054	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2055
2056	warn "removing <$k>";
2057	delete $INC{$k};
2058
2059	$k =~ s/\.pm$//;
2060	$k =~ s/\//::/g;
2061
2062	if (my $cb = $k->can ("unload_module")) {
2063	$cb->();
2064	}	3684	}
2065		3685
2066	Symbol::delete_package $k;	3686	warn "cancelling all extension coros";
		3687	$_->cancel for values %EXT_CORO;
		3688	%EXT_CORO = ();
		3689
		3690	warn "removing commands";
		3691	%COMMAND = ();
		3692
		3693	warn "removing ext/exti commands";
		3694	%EXTCMD = ();
		3695	%EXTICMD = ();
		3696
		3697	warn "unloading/nuking all extensions";
		3698	for my $pkg (@EXTS) {
		3699	warn "... unloading $pkg";
		3700
		3701	if (my $cb = $pkg->can ("unload")) {
		3702	eval {
		3703	$cb->($pkg);
		3704	1
		3705	} or warn "$pkg unloaded, but with errors: $@";
		3706	}
		3707
		3708	warn "... clearing $pkg";
		3709	clear_package $pkg;
2067	}	3710	}
2068		3711
2069	# sync database to disk	3712	warn "unloading all perl modules loaded from $LIBDIR";
2070	cf::db_sync;	3713	while (my ($k, $v) = each %INC) {
2071	IO::AIO::flush;	3714	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2072		3715
		3716	warn "... unloading $k";
		3717	delete $INC{$k};
		3718
		3719	$k =~ s/\.pm$//;
		3720	$k =~ s/\//::/g;
		3721
		3722	if (my $cb = $k->can ("unload_module")) {
		3723	$cb->();
		3724	}
		3725
		3726	clear_package $k;
		3727	}
		3728
2073	# get rid of safe::, as good as possible	3729	warn "getting rid of safe::, as good as possible";
2074	Symbol::delete_package "safe::$_"	3730	clear_package "safe::$_"
2075	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3731	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2076		3732
2077	# remove register_script_function callbacks	3733	warn "unloading cf.pm \"a bit\"";
2078	# TODO
2079
2080	# unload cf.pm "a bit"
2081	delete $INC{"cf.pm"};	3734	delete $INC{"cf.pm"};
		3735	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2082		3736
2083	# don't, removes xs symbols, too,	3737	# don't, removes xs symbols, too,
2084	# and global variables created in xs	3738	# and global variables created in xs
2085	#Symbol::delete_package __PACKAGE__;	3739	#clear_package __PACKAGE__;
2086		3740
2087	# reload cf.pm	3741	warn "unload completed, starting to reload now";
		3742
2088	warn "reloading cf.pm";	3743	warn "reloading cf.pm";
2089	require cf;	3744	require cf;
2090	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3745	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2091		3746
2092	# load config and database again	3747	warn "loading config and database again";
2093	cf::cfg_load;	3748	cf::reload_config;
2094	cf::db_load;
2095		3749
2096	# load extensions
2097	warn "load extensions";	3750	warn "loading extensions";
2098	cf::load_extensions;	3751	cf::load_extensions;
2099		3752
2100	# reattach attachments to objects	3753	if ($REATTACH_ON_RELOAD) {
		3754	warn "reattaching attachments to objects/players";
		3755	_global_reattach; # objects, sockets
		3756	warn "reattaching attachments to maps";
		3757	reattach $_ for values %MAP;
		3758	warn "reattaching attachments to players";
		3759	reattach $_ for values %PLAYER;
		3760	}
		3761
		3762	warn "running post_init jobs";
		3763	(pop @POST_INIT)->(1) while @POST_INIT;
		3764
		3765	warn "leaving sync_job";
		3766
		3767	1
		3768	} or do {
		3769	warn $@;
		3770	cf::cleanup "error while reloading, exiting.";
		3771	};
		3772
2101	warn "reattach";	3773	warn "reloaded";
2102	_global_reattach;	3774	--$RELOAD;
		3775	}
		3776
		3777	$t1 = EV::time - $t1;
		3778	warn "reload completed in ${t1}s\n";
		3779	};
		3780
		3781	our $RELOAD_WATCHER; # used only during reload
		3782
		3783	sub reload_perl() {
		3784	# doing reload synchronously and two reloads happen back-to-back,
		3785	# coro crashes during coro_state_free->destroy here.
		3786
		3787	$RELOAD_WATCHER ||= cf::async {
		3788	Coro::AIO::aio_wait cache_extensions;
		3789
		3790	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3791	do_reload_perl;
		3792	undef $RELOAD_WATCHER;
		3793	};
2103	};	3794	};
2104
2105	if ($@) {
2106	warn $@;
2107	warn "error while reloading, exiting.";
2108	exit 1;
2109	}
2110
2111	warn "reloaded successfully";
2112	};
2113
2114	#############################################################################
2115
2116	unless ($LINK_MAP) {
2117	$LINK_MAP = cf::map::new;
2118
2119	$LINK_MAP->width (41);
2120	$LINK_MAP->height (41);
2121	$LINK_MAP->alloc;
2122	$LINK_MAP->path ("{link}");
2123	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2124	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2125
2126	# dirty hack because... archetypes are not yet loaded
2127	Event->timer (
2128	after => 2,
2129	cb => sub {
2130	$_[0]->w->cancel;
2131
2132	# provide some exits "home"
2133	my $exit = cf::object::new "exit";
2134
2135	$exit->slaying ($EMERGENCY_POSITION->[0]);
2136	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2137	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2138
2139	$LINK_MAP->insert ($exit->clone, 19, 19);
2140	$LINK_MAP->insert ($exit->clone, 19, 20);
2141	$LINK_MAP->insert ($exit->clone, 19, 21);
2142	$LINK_MAP->insert ($exit->clone, 20, 19);
2143	$LINK_MAP->insert ($exit->clone, 20, 21);
2144	$LINK_MAP->insert ($exit->clone, 21, 19);
2145	$LINK_MAP->insert ($exit->clone, 21, 20);
2146	$LINK_MAP->insert ($exit->clone, 21, 21);
2147
2148	$exit->destroy;
2149	});
2150
2151	$LINK_MAP->{deny_save} = 1;
2152	$LINK_MAP->{deny_reset} = 1;
2153
2154	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2155	}	3795	}
2156
2157	register "<global>", __PACKAGE__;
2158		3796
2159	register_command "reload" => sub {	3797	register_command "reload" => sub {
2160	my ($who, $arg) = @_;	3798	my ($who, $arg) = @_;
2161		3799
2162	if ($who->flag (FLAG_WIZ)) {	3800	if ($who->flag (FLAG_WIZ)) {
2163	$who->message ("start of reload.");
2164	reload;
2165	$who->message ("end of reload.");	3801	$who->message ("reloading server.");
		3802	async {
		3803	$Coro::current->{desc} = "perl_reload";
		3804	reload_perl;
		3805	};
2166	}	3806	}
2167	};	3807	};
2168		3808
2169	unshift @INC, $LIBDIR;	3809	unshift @INC, $LIBDIR;
2170		3810
2171	$TICK_WATCHER = Event->timer (	3811	my $bug_warning = 0;
2172	reentrant => 0,	3812
2173	prio => 0,	3813	our @WAIT_FOR_TICK;
2174	at => $NEXT_TICK || $TICK,	3814	our @WAIT_FOR_TICK_BEGIN;
2175	data => WF_AUTOCANCEL,	3815
2176	cb => sub {	3816	sub wait_for_tick {
		3817	return if tick_inhibit || $Coro::current == $Coro::main;
		3818
		3819	my $signal = new Coro::Signal;
		3820	push @WAIT_FOR_TICK, $signal;
		3821	$signal->wait;
		3822	}
		3823
		3824	sub wait_for_tick_begin {
		3825	return if tick_inhibit || $Coro::current == $Coro::main;
		3826
		3827	my $signal = new Coro::Signal;
		3828	push @WAIT_FOR_TICK_BEGIN, $signal;
		3829	$signal->wait;
		3830	}
		3831
		3832	sub tick {
		3833	if ($Coro::current != $Coro::main) {
		3834	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3835	unless ++$bug_warning > 10;
		3836	return;
		3837	}
		3838
2177	cf::server_tick; # one server iteration	3839	cf::server_tick; # one server iteration
2178	$RUNTIME += $TICK;
2179	$NEXT_TICK += $TICK;
2180		3840
2181	# if we are delayed by four ticks or more, skip them all	3841	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2182	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3842	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2183		3843	Coro::async_pool {
2184	$TICK_WATCHER->at ($NEXT_TICK);	3844	$Coro::current->{desc} = "runtime saver";
2185	$TICK_WATCHER->start;
2186	},
2187	);
2188
2189	IO::AIO::max_poll_time $TICK * 0.2;
2190
2191	Event->io (
2192	fd => IO::AIO::poll_fileno,
2193	poll => 'r',
2194	prio => 5,
2195	data => WF_AUTOCANCEL,
2196	cb => \&IO::AIO::poll_cb,
2197	);
2198
2199	Event->timer (
2200	data => WF_AUTOCANCEL,
2201	after => 0,
2202	interval => 10,
2203	cb => sub {
2204	(Coro::unblock_sub {
2205	write_runtime	3845	write_runtime_sync
2206	or warn "ERROR: unable to write runtime file: $!";	3846	or warn "ERROR: unable to write runtime file: $!";
2207	})->();	3847	};
2208	},	3848	}
2209	);	3849
		3850	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3851	$sig->send;
		3852	}
		3853	while (my $sig = shift @WAIT_FOR_TICK) {
		3854	$sig->send;
		3855	}
		3856
		3857	$LOAD = ($NOW - $TICK_START) / $TICK;
		3858	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3859
		3860	if (0) {
		3861	if ($NEXT_TICK) {
		3862	my $jitter = $TICK_START - $NEXT_TICK;
		3863	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3864	warn "jitter $JITTER\n";#d#
		3865	}
		3866	}
		3867	}
		3868
		3869	{
		3870	# configure BDB
		3871
		3872	BDB::min_parallel 8;
		3873	BDB::max_poll_reqs $TICK * 0.1;
		3874	$AnyEvent::BDB::WATCHER->priority (1);
		3875
		3876	unless ($DB_ENV) {
		3877	$DB_ENV = BDB::db_env_create;
		3878	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3879	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3880	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3881	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3882	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3883
		3884	cf::sync_job {
		3885	eval {
		3886	BDB::db_env_open
		3887	$DB_ENV,
		3888	$BDBDIR,
		3889	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3890	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3891	0666;
		3892
		3893	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3894	};
		3895
		3896	cf::cleanup "db_env_open(db): $@" if $@;
		3897	};
		3898	}
		3899
		3900	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3901	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3902	};
		3903	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3904	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3905	};
		3906	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3907	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3908	};
		3909	}
		3910
		3911	{
		3912	# configure IO::AIO
		3913
		3914	IO::AIO::min_parallel 8;
		3915	IO::AIO::max_poll_time $TICK * 0.1;
		3916	undef $AnyEvent::AIO::WATCHER;
		3917	}
		3918
		3919	my $_log_backtrace;
		3920
		3921	sub _log_backtrace {
		3922	my ($msg, @addr) = @_;
		3923
		3924	$msg =~ s/\n//;
		3925
		3926	# limit the # of concurrent backtraces
		3927	if ($_log_backtrace < 2) {
		3928	++$_log_backtrace;
		3929	my $perl_bt = Carp::longmess $msg;
		3930	async {
		3931	$Coro::current->{desc} = "abt $msg";
		3932
		3933	my @bt = fork_call {
		3934	@addr = map { sprintf "%x", $_ } @addr;
		3935	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3936	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3937	or die "addr2line: $!";
		3938
		3939	my @funcs;
		3940	my @res = <$fh>;
		3941	chomp for @res;
		3942	while (@res) {
		3943	my ($func, $line) = splice @res, 0, 2, ();
		3944	push @funcs, "[$func] $line";
		3945	}
		3946
		3947	@funcs
		3948	};
		3949
		3950	LOG llevInfo, "[ABT] $perl_bt\n";
		3951	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3952	LOG llevInfo, "[ABT] $_\n" for @bt;
		3953	--$_log_backtrace;
		3954	};
		3955	} else {
		3956	LOG llevInfo, "[ABT] $msg\n";
		3957	LOG llevInfo, "[ABT] [suppressed]\n";
		3958	}
		3959	}
		3960
		3961	# load additional modules
		3962	require "cf/$_.pm" for @EXTRA_MODULES;
2210		3963
2211	END { cf::emergency_save }	3964	END { cf::emergency_save }
2212		3965
2213	1	3966	1
2214		3967

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