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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.143 by root, Sun Jan 7 02:39:14 2007 UTC vs.
Revision 1.466 by root, Thu Jan 8 03:03:24 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 (Coro::PRIO_MAX); # 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
32		76
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	77	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		78
35	our %COMMAND = ();	79	our %COMMAND = ();
36	our %COMMAND_TIME = ();	80	our %COMMAND_TIME = ();
		81
		82	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	83	our %EXTCMD = ();
		84	our %EXTICMD = ();
		85	our %EXT_CORO = (); # coroutines bound to extensions
		86	our %EXT_MAP = (); # pluggable maps
38		87
		88	our $RELOAD; # number of reloads so far, non-zero while in reload
39	our @EVENT;	89	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		90
42	our $TICK = MAX_TIME * 1e-6;	91	our $CONFDIR = confdir;
43	our $TICK_WATCHER;	92	our $DATADIR = datadir;
		93	our $LIBDIR = "$DATADIR/ext";
		94	our $PODDIR = "$DATADIR/pod";
		95	our $MAPDIR = "$DATADIR/" . mapdir;
		96	our $LOCALDIR = localdir;
		97	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		98	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		99	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		100	our $RANDOMDIR = "$LOCALDIR/random";
		101	our $BDBDIR = "$LOCALDIR/db";
		102	our $PIDFILE = "$LOCALDIR/pid";
		103	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		104
		105	our %RESOURCE;
		106
		107	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		108	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	109	our $NEXT_TICK;
45	our $NOW;	110	our $USE_FSYNC = 1; # use fsync to write maps - default off
		111
		112	our $BDB_DEADLOCK_WATCHER;
		113	our $BDB_CHECKPOINT_WATCHER;
		114	our $BDB_TRICKLE_WATCHER;
		115	our $DB_ENV;
		116
		117	our @EXTRA_MODULES = qw(pod mapscript);
46		118
47	our %CFG;	119	our %CFG;
48		120
49	our $UPTIME; $UPTIME ||= time;	121	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	122	our $RUNTIME;
		123	our $NOW;
51		124
52	our %PLAYER; # all users	125	our (%PLAYER, %PLAYER_LOADING); # all users
53	our %MAP; # all maps	126	our (%MAP, %MAP_LOADING ); # all maps
54	our $LINK_MAP; # the special {link} map	127	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	128
56	our %EXT_CORO; # coroutines bound to extensions	129	# used to convert map paths into valid unix filenames by replacing / by ∕
		130	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		131
		132	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		133	our $LOADAVG; # same thing, but with alpha-smoothing
		134	our $JITTER; # average jitter
		135	our $TICK_START; # for load detecting purposes
		136
		137	our @POST_INIT;
		138
		139	our $REATTACH_ON_RELOAD; # ste to true to force object reattach on reload (slow)
57		140
58	binmode STDOUT;	141	binmode STDOUT;
59	binmode STDERR;	142	binmode STDERR;
60		143
61	# read virtual server time, if available	144	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	145	unless ($RUNTIME || !-e $RUNTIMEFILE) {
63	open my $fh, "<", cf::localdir . "/runtime"	146	open my $fh, "<", $RUNTIMEFILE
64	or die "unable to read runtime file: $!";	147	or die "unable to read $RUNTIMEFILE file: $!";
65	$RUNTIME = <$fh> + 0.;	148	$RUNTIME = <$fh> + 0.;
66	}	149	}
67		150
68	mkdir cf::localdir;	151	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	152	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		153
74	# a special map that is always available
75	our $LINK_MAP;
76	our $EMERGENCY_POSITION;	154	our $EMERGENCY_POSITION;
		155
		156	sub cf::map::normalise;
77		157
78	#############################################################################	158	#############################################################################
79		159
80	=head2 GLOBAL VARIABLES	160	=head2 GLOBAL VARIABLES
81		161
…		…
88	=item $cf::RUNTIME	168	=item $cf::RUNTIME
89		169
90	The time this server has run, starts at 0 and is increased by $cf::TICK on	170	The time this server has run, starts at 0 and is increased by $cf::TICK on
91	every server tick.	171	every server tick.
92		172
93	=item $cf::LIBDIR	173	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		174	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		175	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
94		176
95	The perl library directory, where extensions and cf-specific modules can	177	Various directories - "/etc", read-only install directory, perl-library
96	be found. It will be added to C<@INC> automatically.	178	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		179	unique-items directory, player file directory, random maps directory and
		180	database environment.
97		181
98	=item $cf::NOW	182	=item $cf::NOW
99		183
100	The time of the last (current) server tick.	184	The time of the last (current) server tick.
101		185
102	=item $cf::TICK	186	=item $cf::TICK
103		187
104	The interval between server ticks, in seconds.	188	The interval between server ticks, in seconds.
105		189
		190	=item $cf::LOADAVG
		191
		192	The current CPU load on the server (alpha-smoothed), as a value between 0
		193	(none) and 1 (overloaded), indicating how much time is spent on processing
		194	objects per tick. Healthy values are < 0.5.
		195
		196	=item $cf::LOAD
		197
		198	The raw value load value from the last tick.
		199
106	=item %cf::CFG	200	=item %cf::CFG
107		201
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	202	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
109	from wherever your confdir points to.	203	from wherever your confdir points to.
		204
		205	=item cf::wait_for_tick, cf::wait_for_tick_begin
		206
		207	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		208	returns directly I<after> the tick processing (and consequently, can only wake one process
		209	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		210
		211	=item @cf::INVOKE_RESULTS
		212
		213	This array contains the results of the last C<invoke ()> call. When
		214	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		215	that call.
110		216
111	=back	217	=back
112		218
113	=cut	219	=cut
114		220
115	BEGIN {	221	BEGIN {
116	*CORE::GLOBAL::warn = sub {	222	*CORE::GLOBAL::warn = sub {
117	my $msg = join "", @_;	223	my $msg = join "", @_;
118	utf8::encode $msg;
119		224
120	$msg .= "\n"	225	$msg .= "\n"
121	unless $msg =~ /\n$/;	226	unless $msg =~ /\n$/;
122		227
		228	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		229
123	LOG llevError, "cfperl: $msg";	230	LOG llevError, $msg;
124	};	231	};
125	}	232	}
		233
		234	$Coro::State::DIEHOOK = sub {
		235	return unless $^S eq 0; # "eq", not "=="
		236
		237	if ($Coro::current == $Coro::main) {#d#
		238	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		239	return;#d#
		240	}#d#
		241
		242	# kill coroutine otherwise
		243	warn Carp::longmess $_[0];
		244	Coro::terminate
		245	};
		246
		247	$SIG{__DIE__} = sub { }; #d#?
126		248
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	249	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	250	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	251	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	252	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
131	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	253	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		254	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
132	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	255	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
133		256
134	# we bless all objects into (empty) derived classes to force a method lookup	257	# we bless all objects into (empty) derived classes to force a method lookup
135	# within the Safe compartment.	258	# within the Safe compartment.
136	for my $pkg (qw(	259	for my $pkg (qw(
137	cf::global cf::attachable	260	cf::global cf::attachable
138	cf::object cf::object::player	261	cf::object cf::object::player
139	cf::client cf::player	262	cf::client cf::player
140	cf::arch cf::living	263	cf::arch cf::living
		264	cf::map cf::mapspace
141	cf::map cf::party cf::region	265	cf::party cf::region
142	)) {	266	)) {
143	no strict 'refs';
144	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	267	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
145	}	268	}
146		269
147	$Event::DIED = sub {	270	$EV::DIED = sub {
148	warn "error in event callback: @_";	271	warn "error in event callback: @_";
149	};	272	};
150		273
151	my %ext_pkg;	274	#############################################################################
152	my @exts;
153	my @hook;
154		275
155	=head2 UTILITY FUNCTIONS	276	=head2 UTILITY FUNCTIONS
156		277
157	=over 4	278	=over 4
158		279
159	=cut	280	=item dumpval $ref
160		281
161	use JSON::Syck (); # TODO# replace by JSON::PC once working	282	=cut
162		283
		284	sub dumpval {
		285	eval {
		286	local $SIG{__DIE__};
		287	my $d;
		288	if (1) {
		289	$d = new Data::Dumper([$_[0]], ["*var"]);
		290	$d->Terse(1);
		291	$d->Indent(2);
		292	$d->Quotekeys(0);
		293	$d->Useqq(1);
		294	#$d->Bless(...);
		295	$d->Seen($_[1]) if @_ > 1;
		296	$d = $d->Dump();
		297	}
		298	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		299	$d
		300	} || "[unable to dump $_[0]: '$@']";
		301	}
		302
163	=item $ref = cf::from_json $json	303	=item $ref = cf::decode_json $json
164		304
165	Converts a JSON string into the corresponding perl data structure.	305	Converts a JSON string into the corresponding perl data structure.
166		306
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	307	=item $json = cf::encode_json $ref
175		308
176	Converts a perl data structure into its JSON representation.	309	Converts a perl data structure into its JSON representation.
177		310
178	=cut	311	=cut
179		312
180	sub to_json($) {	313	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	314
182	JSON::Syck::Dump $_[0]	315	sub encode_json($) { $json_coder->encode ($_[0]) }
		316	sub decode_json($) { $json_coder->decode ($_[0]) }
		317
		318	=item cf::post_init { BLOCK }
		319
		320	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		321	but I<before> the server starts ticking again.
		322
		323	The cdoeblock will have a single boolean argument to indicate whether this
		324	is a reload or not.
		325
		326	=cut
		327
		328	sub post_init(&) {
		329	push @POST_INIT, shift;
183	}	330	}
184		331
185	=item cf::lock_wait $string	332	=item cf::lock_wait $string
186		333
187	Wait until the given lock is available. See cf::lock_acquire.	334	Wait until the given lock is available. See cf::lock_acquire.
188		335
189	=item my $lock = cf::lock_acquire $string	336	=item my $lock = cf::lock_acquire $string
190		337
191	Wait until the given lock is available and then acquires it and returns	338	Wait until the given lock is available and then acquires it and returns
192	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	339	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
193	for example when the coroutine gets canceled), the lock is automatically	340	for example when the coroutine gets canceled), the lock is automatically
194	returned.	341	returned.
195		342
		343	Locks are *not* recursive, locking from the same coro twice results in a
		344	deadlocked coro.
		345
196	Lock names should begin with a unique identifier (for example, cf::map::find	346	Lock names should begin with a unique identifier (for example, cf::map::find
197	uses map_find and cf::map::load uses map_load).	347	uses map_find and cf::map::load uses map_load).
198		348
199	=cut	349	=item $locked = cf::lock_active $string
200		350
201	our %LOCK;	351	Return true if the lock is currently active, i.e. somebody has locked it.
		352
		353	=cut
		354
		355	our $LOCKS = new Coro::SemaphoreSet;
202		356
203	sub lock_wait($) {	357	sub lock_wait($) {
204	my ($key) = @_;	358	$LOCKS->wait ($_[0]);
205
206	# wait for lock, if any
207	while ($LOCK{$key}) {
208	push @{ $LOCK{$key} }, $Coro::current;
209	Coro::schedule;
210	}
211	}	359	}
212		360
213	sub lock_acquire($) {	361	sub lock_acquire($) {
214	my ($key) = @_;	362	$LOCKS->guard ($_[0])
		363	}
215		364
216	# wait, to be sure we are not locked	365	sub lock_active($) {
217	lock_wait $key;	366	$LOCKS->count ($_[0]) < 1
218
219	$LOCK{$key} = [];
220
221	Coro::guard {
222	# wake up all waiters, to be on the safe side
223	$_->ready for @{ delete $LOCK{$key} };
224	}
225	}	367	}
226		368
227	sub freeze_mainloop {	369	sub freeze_mainloop {
228	return unless $TICK_WATCHER->is_active;	370	tick_inhibit_inc;
229		371
230	my $guard = Coro::guard { $TICK_WATCHER->start };	372	&Guard::guard (\&tick_inhibit_dec);
231	$TICK_WATCHER->stop;	373	}
232	$guard	374
		375	=item cf::periodic $interval, $cb
		376
		377	Like EV::periodic, but randomly selects a starting point so that the actions
		378	get spread over timer.
		379
		380	=cut
		381
		382	sub periodic($$) {
		383	my ($interval, $cb) = @_;
		384
		385	my $start = rand List::Util::min 180, $interval;
		386
		387	EV::periodic $start, $interval, 0, $cb
		388	}
		389
		390	=item cf::get_slot $time[, $priority[, $name]]
		391
		392	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		393	This call blocks and returns only when you have at least C<$time> seconds
		394	of cpu time till the next tick. The slot is only valid till the next cede.
		395
		396	The optional C<$name> can be used to identify the job to run. It might be
		397	used for statistical purposes and should identify the same time-class.
		398
		399	Useful for short background jobs.
		400
		401	=cut
		402
		403	our @SLOT_QUEUE;
		404	our $SLOT_QUEUE;
		405
		406	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		407	$SLOT_QUEUE = Coro::async {
		408	$Coro::current->desc ("timeslot manager");
		409
		410	my $signal = new Coro::Signal;
		411
		412	while () {
		413	next_job:
		414	my $avail = cf::till_tick;
		415	if ($avail > 0.01) {
		416	for (0 .. $#SLOT_QUEUE) {
		417	if ($SLOT_QUEUE[$_][0] < $avail) {
		418	my $job = splice @SLOT_QUEUE, $_, 1, ();
		419	$job->[2]->send;
		420	Coro::cede;
		421	goto next_job;
		422	}
		423	}
		424	}
		425
		426	if (@SLOT_QUEUE) {
		427	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		428	push @cf::WAIT_FOR_TICK, $signal;
		429	$signal->wait;
		430	} else {
		431	Coro::schedule;
		432	}
		433	}
		434	};
		435
		436	sub get_slot($;$$) {
		437	return if tick_inhibit || $Coro::current == $Coro::main;
		438
		439	my ($time, $pri, $name) = @_;
		440
		441	$time = $TICK * .6 if $time > $TICK * .6;
		442	my $sig = new Coro::Signal;
		443
		444	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		445	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		446	$SLOT_QUEUE->ready;
		447	$sig->wait;
233	}	448	}
234		449
235	=item cf::async { BLOCK }	450	=item cf::async { BLOCK }
236		451
237	Currently the same as Coro::async_pool, meaning you cannot use	452	Currently the same as Coro::async_pool, meaning you cannot use
…		…
242		457
243	BEGIN { *async = \&Coro::async_pool }	458	BEGIN { *async = \&Coro::async_pool }
244		459
245	=item cf::sync_job { BLOCK }	460	=item cf::sync_job { BLOCK }
246		461
247	The design of crossfire+ requires that the main coro ($Coro::main) is	462	The design of Deliantra requires that the main coroutine ($Coro::main)
248	always able to handle events or runnable, as crossfire+ is only partly	463	is always able to handle events or runnable, as Deliantra is only
249	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	464	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		465	acceptable.
250		466
251	If it must be done, put the blocking parts into C<sync_job>. This will run	467	If it must be done, put the blocking parts into C<sync_job>. This will run
252	the given BLOCK in another coroutine while waiting for the result. The	468	the given BLOCK in another coroutine while waiting for the result. The
253	server will be frozen during this time, so the block should either finish	469	server will be frozen during this time, so the block should either finish
254	fast or be very important.	470	fast or be very important.
…		…
257		473
258	sub sync_job(&) {	474	sub sync_job(&) {
259	my ($job) = @_;	475	my ($job) = @_;
260		476
261	if ($Coro::current == $Coro::main) {	477	if ($Coro::current == $Coro::main) {
		478	my $time = EV::time;
		479
262	# this is the main coro, too bad, we have to block	480	# this is the main coro, too bad, we have to block
263	# till the operation succeeds, freezing the server :/	481	# till the operation succeeds, freezing the server :/
264		482
265	# TODO: use suspend/resume instead	483	LOG llevError, Carp::longmess "sync job";#d#
266	# (but this is cancel-safe)	484
267	my $freeze_guard = freeze_mainloop;	485	my $freeze_guard = freeze_mainloop;
268		486
269	my $busy = 1;	487	my $busy = 1;
270	my @res;	488	my @res;
271		489
272	(async {	490	(async {
		491	$Coro::current->desc ("sync job coro");
273	@res = eval { $job->() };	492	@res = eval { $job->() };
274	warn $@ if $@;	493	warn $@ if $@;
275	undef $busy;	494	undef $busy;
276	})->prio (Coro::PRIO_MAX);	495	})->prio (Coro::PRIO_MAX);
277		496
278	while ($busy) {	497	while ($busy) {
279	Coro::cede or Event::one_event;	498	if (Coro::nready) {
		499	Coro::cede_notself;
		500	} else {
		501	EV::loop EV::LOOP_ONESHOT;
280	}	502	}
		503	}
		504
		505	my $time = EV::time - $time;
		506
		507	$TICK_START += $time; # do not account sync jobs to server load
281		508
282	wantarray ? @res : $res[0]	509	wantarray ? @res : $res[0]
283	} else {	510	} else {
284	# we are in another coroutine, how wonderful, everything just works	511	# we are in another coroutine, how wonderful, everything just works
285		512
…		…
287	}	514	}
288	}	515	}
289		516
290	=item $coro = cf::async_ext { BLOCK }	517	=item $coro = cf::async_ext { BLOCK }
291		518
292	Like async, but this coro is automcatially being canceled when the	519	Like async, but this coro is automatically being canceled when the
293	extension calling this is being unloaded.	520	extension calling this is being unloaded.
294		521
295	=cut	522	=cut
296		523
297	sub async_ext(&) {	524	sub async_ext(&) {
…		…
305	$EXT_CORO{$coro+0} = $coro;	532	$EXT_CORO{$coro+0} = $coro;
306		533
307	$coro	534	$coro
308	}	535	}
309		536
310	sub write_runtime {	537	=item fork_call { }, $args
311	my $runtime = cf::localdir . "/runtime";
312		538
313	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	539	Executes the given code block with the given arguments in a seperate
314	or return;	540	process, returning the results. Everything must be serialisable with
		541	Coro::Storable. May, of course, block. Note that the executed sub may
		542	never block itself or use any form of event handling.
315		543
316	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	544	=cut
317	(aio_write $fh, 0, (length $value), $value, 0) <= 0
318	and return;
319		545
320	aio_fsync $fh	546	sub fork_call(&@) {
321	and return;	547	my ($cb, @args) = @_;
322		548
323	close $fh	549	# we seemingly have to make a local copy of the whole thing,
324	or return;	550	# otherwise perl prematurely frees the stuff :/
		551	# TODO: investigate and fix (likely this will be rather laborious)
325		552
326	aio_rename "$runtime~", $runtime	553	my @res = Coro::Util::fork_eval {
327	and return;	554	reset_signals;
		555	&$cb
		556	}, @args;
328		557
		558	wantarray ? @res : $res[-1]
		559	}
		560
		561	=item $coin = coin_from_name $name
		562
		563	=cut
		564
		565	our %coin_alias = (
		566	"silver" => "silvercoin",
		567	"silvercoin" => "silvercoin",
		568	"silvercoins" => "silvercoin",
		569	"gold" => "goldcoin",
		570	"goldcoin" => "goldcoin",
		571	"goldcoins" => "goldcoin",
		572	"platinum" => "platinacoin",
		573	"platinumcoin" => "platinacoin",
		574	"platinumcoins" => "platinacoin",
		575	"platina" => "platinacoin",
		576	"platinacoin" => "platinacoin",
		577	"platinacoins" => "platinacoin",
		578	"royalty" => "royalty",
		579	"royalties" => "royalty",
		580	);
		581
		582	sub coin_from_name($) {
		583	$coin_alias{$_[0]}
		584	? cf::arch::find $coin_alias{$_[0]}
		585	: undef
		586	}
		587
		588	=item $value = cf::db_get $family => $key
		589
		590	Returns a single value from the environment database.
		591
		592	=item cf::db_put $family => $key => $value
		593
		594	Stores the given C<$value> in the family. It can currently store binary
		595	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		596
		597	=item $db = cf::db_table "name"
		598
		599	Create and/or open a new database table. The string must not be "db" and must be unique
		600	within each server.
		601
		602	=cut
		603
		604	sub db_table($) {
		605	my ($name) = @_;
		606	my $db = BDB::db_create $DB_ENV;
		607
		608	eval {
		609	$db->set_flags (BDB::CHKSUM);
		610
		611	utf8::encode $name;
		612	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		613	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		614	cf::cleanup "db_open(db): $!" if $!;
		615	};
		616	cf::cleanup "db_open(db): $@" if $@;
		617
		618	$db
		619	}
		620
		621	our $DB;
		622
		623	sub db_init {
		624	cf::sync_job {
		625	$DB ||= db_table "db";
		626	};
		627	}
		628
		629	sub db_get($$) {
		630	my $key = "$_[0]/$_[1]";
		631
		632	cf::sync_job {
		633	BDB::db_get $DB, undef, $key, my $data;
		634
		635	$! ? ()
		636	: $data
329	1	637	}
		638	}
		639
		640	sub db_put($$$) {
		641	BDB::dbreq_pri 4;
		642	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		643	}
		644
		645	=item cf::cache $id => [$paths...], $processversion => $process
		646
		647	Generic caching function that returns the value of the resource $id,
		648	caching and regenerating as required.
		649
		650	This function can block.
		651
		652	=cut
		653
		654	sub cache {
		655	my ($id, $src, $processversion, $process) = @_;
		656
		657	my $meta =
		658	join "\x00",
		659	$processversion,
		660	map {
		661	aio_stat $_
		662	and Carp::croak "$_: $!";
		663
		664	($_, (stat _)[7,9])
		665	} @$src;
		666
		667	my $dbmeta = db_get cache => "$id/meta";
		668	if ($dbmeta ne $meta) {
		669	# changed, we may need to process
		670
		671	my @data;
		672	my $md5;
		673
		674	for (0 .. $#$src) {
		675	0 <= aio_load $src->[$_], $data[$_]
		676	or Carp::croak "$src->[$_]: $!";
		677	}
		678
		679	# if processing is expensive, check
		680	# checksum first
		681	if (1) {
		682	$md5 =
		683	join "\x00",
		684	$processversion,
		685	map {
		686	cf::cede_to_tick;
		687	($src->[$_], Digest::MD5::md5_hex $data[$_])
		688	} 0.. $#$src;
		689
		690
		691	my $dbmd5 = db_get cache => "$id/md5";
		692	if ($dbmd5 eq $md5) {
		693	db_put cache => "$id/meta", $meta;
		694
		695	return db_get cache => "$id/data";
		696	}
		697	}
		698
		699	my $t1 = Time::HiRes::time;
		700	my $data = $process->(\@data);
		701	my $t2 = Time::HiRes::time;
		702
		703	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		704
		705	db_put cache => "$id/data", $data;
		706	db_put cache => "$id/md5" , $md5;
		707	db_put cache => "$id/meta", $meta;
		708
		709	return $data;
		710	}
		711
		712	db_get cache => "$id/data"
		713	}
		714
		715	=item cf::datalog type => key => value, ...
		716
		717	Log a datalog packet of the given type with the given key-value pairs.
		718
		719	=cut
		720
		721	sub datalog($@) {
		722	my ($type, %kv) = @_;
		723	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
330	}	724	}
331		725
332	=back	726	=back
333		727
334	=cut	728	=cut
335		729
336	#############################################################################	730	#############################################################################
337		731
338	package cf::path;
339
340	sub new {
341	my ($class, $path, $base) = @_;
342
343	$path = $path->as_string if ref $path;
344
345	my $self = bless { }, $class;
346
347	# {... are special paths that are not touched
348	# ?xxx/... are special absolute paths
349	# ?random/... random maps
350	# /! non-realised random map exit
351	# /... normal maps
352	# ~/... per-player maps without a specific player (DO NOT USE)
353	# ~user/... per-player map of a specific user
354
355	if ($path =~ /^{/) {
356	# fine as it is
357	} elsif ($path =~ s{^\?random/}{}) {
358	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
359	$self->{random} = cf::from_json $data;
360	} else {
361	if ($path =~ s{^~([^/]+)?}{}) {
362	$self->{user_rel} = 1;
363
364	if (defined $1) {
365	$self->{user} = $1;
366	} elsif ($base =~ m{^~([^/]+)/}) {
367	$self->{user} = $1;
368	} else {
369	warn "cannot resolve user-relative path without user <$path,$base>\n";
370	}
371	} elsif ($path =~ /^\//) {
372	# already absolute
373	} else {
374	$base =~ s{[^/]+/?$}{};
375	return $class->new ("$base/$path");
376	}
377
378	for ($path) {
379	redo if s{/\.?/}{/};
380	redo if s{/[^/]+/\.\./}{/};
381	}
382	}
383
384	$self->{path} = $path;
385
386	$self
387	}
388
389	# the name / primary key / in-game path
390	sub as_string {
391	my ($self) = @_;
392
393	$self->{user_rel} ? "~$self->{user}$self->{path}"
394	: $self->{random} ? "?random/$self->{path}"
395	: $self->{path}
396	}
397
398	# the displayed name, this is a one way mapping
399	sub visible_name {
400	my ($self) = @_;
401
402	# if (my $rmp = $self->{random}) {
403	# # todo: be more intelligent about this
404	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
405	# } else {
406	$self->as_string
407	# }
408	}
409
410	# escape the /'s in the path
411	sub _escaped_path {
412	# ∕ is U+2215
413	(my $path = $_[0]{path}) =~ s/\//∕/g;
414	$path
415	}
416
417	# the original (read-only) location
418	sub load_path {
419	my ($self) = @_;
420
421	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
422	}
423
424	# the temporary/swap location
425	sub save_path {
426	my ($self) = @_;
427
428	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
429	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
430	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
431	}
432
433	# the unique path, might be eq to save_path
434	sub uniq_path {
435	my ($self) = @_;
436
437	$self->{user_rel} || $self->{random}
438	? undef
439	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
440	}
441
442	# return random map parameters, or undef
443	sub random_map_params {
444	my ($self) = @_;
445
446	$self->{random}
447	}
448
449	# this is somewhat ugly, but style maps do need special treatment
450	sub is_style_map {
451	$_[0]{path} =~ m{^/styles/}
452	}
453
454	package cf;
455
456	#############################################################################
457
458	=head2 ATTACHABLE OBJECTS	732	=head2 ATTACHABLE OBJECTS
459		733
460	Many objects in crossfire are so-called attachable objects. That means you can	734	Many objects in deliantra are so-called attachable objects. That means you can
461	attach callbacks/event handlers (a collection of which is called an "attachment")	735	attach callbacks/event handlers (a collection of which is called an "attachment")
462	to it. All such attachable objects support the following methods.	736	to it. All such attachable objects support the following methods.
463		737
464	In the following description, CLASS can be any of C<global>, C<object>	738	In the following description, CLASS can be any of C<global>, C<object>
465	C<player>, C<client> or C<map> (i.e. the attachable objects in	739	C<player>, C<client> or C<map> (i.e. the attachable objects in
466	crossfire+).	740	Deliantra).
467		741
468	=over 4	742	=over 4
469		743
470	=item $attachable->attach ($attachment, key => $value...)	744	=item $attachable->attach ($attachment, key => $value...)
471		745
…		…
515	=item cf::CLASS::attachment $name, ...	789	=item cf::CLASS::attachment $name, ...
516		790
517	Register an attachment by C<$name> through which attachable objects of the	791	Register an attachment by C<$name> through which attachable objects of the
518	given CLASS can refer to this attachment.	792	given CLASS can refer to this attachment.
519		793
520	Some classes such as crossfire maps and objects can specify attachments	794	Some classes such as deliantra maps and objects can specify attachments
521	that are attached at load/instantiate time, thus the need for a name.	795	that are attached at load/instantiate time, thus the need for a name.
522		796
523	These calls expect any number of the following handler/hook descriptions:	797	These calls expect any number of the following handler/hook descriptions:
524		798
525	=over 4	799	=over 4
…		…
585	our @CB_TYPE = (); # registry for type (cf-object class) based events	859	our @CB_TYPE = (); # registry for type (cf-object class) based events
586	our @CB_MAP = ();	860	our @CB_MAP = ();
587		861
588	my %attachment;	862	my %attachment;
589		863
		864	sub cf::attachable::thawer_merge {
		865	# simply override everything except _meta
		866	local $_[0]{_meta};
		867	%{$_[0]} = %{$_[1]};
		868	}
		869
590	sub _attach_cb($$$$) {	870	sub _attach_cb($$$$) {
591	my ($registry, $event, $prio, $cb) = @_;	871	my ($registry, $event, $prio, $cb) = @_;
592		872
593	use sort 'stable';	873	use sort 'stable';
594		874
…		…
628	$registry = $CB_TYPE[$object_type] ||= [];	908	$registry = $CB_TYPE[$object_type] ||= [];
629		909
630	} elsif ($type eq "subtype") {	910	} elsif ($type eq "subtype") {
631	defined $object_type or Carp::croak "subtype specified without type";	911	defined $object_type or Carp::croak "subtype specified without type";
632	my $object_subtype = shift @arg;	912	my $object_subtype = shift @arg;
633	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	913	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
634		914
635	} elsif ($type eq "package") {	915	} elsif ($type eq "package") {
636	my $pkg = shift @arg;	916	my $pkg = shift @arg;
637		917
638	while (my ($name, $id) = each %cb_id) {	918	while (my ($name, $id) = each %cb_id) {
…		…
667	_attach $registry, $klass, @attach;	947	_attach $registry, $klass, @attach;
668	}	948	}
669		949
670	$obj->{$name} = \%arg;	950	$obj->{$name} = \%arg;
671	} else {	951	} else {
672	warn "object uses attachment '$name' that is not available, postponing.\n";	952	warn "object uses attachment '$name' which is not available, postponing.\n";
673	}	953	}
674		954
675	$obj->{_attachment}{$name} = undef;	955	$obj->{_attachment}{$name} = undef;
676	}	956	}
677		957
…		…
679	if (ref $_[0]) {	959	if (ref $_[0]) {
680	_object_attach @_;	960	_object_attach @_;
681	} else {	961	} else {
682	_attach shift->_attach_registry, @_;	962	_attach shift->_attach_registry, @_;
683	}	963	}
		964	_recalc_want;
684	};	965	};
685		966
686	# all those should be optimised	967	# all those should be optimised
687	sub cf::attachable::detach {	968	sub cf::attachable::detach {
688	my ($obj, $name) = @_;	969	my ($obj, $name) = @_;
…		…
691	delete $obj->{_attachment}{$name};	972	delete $obj->{_attachment}{$name};
692	reattach ($obj);	973	reattach ($obj);
693	} else {	974	} else {
694	Carp::croak "cannot, currently, detach class attachments";	975	Carp::croak "cannot, currently, detach class attachments";
695	}	976	}
		977	_recalc_want;
696	};	978	};
697		979
698	sub cf::attachable::attached {	980	sub cf::attachable::attached {
699	my ($obj, $name) = @_;	981	my ($obj, $name) = @_;
700		982
…		…
715	";	997	";
716	die if $@;	998	die if $@;
717	}	999	}
718		1000
719	our $override;	1001	our $override;
720	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1002	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
721		1003
722	sub override {	1004	sub override {
723	$override = 1;	1005	$override = 1;
724	@invoke_results = ();	1006	@INVOKE_RESULTS = (@_);
725	}	1007	}
726		1008
727	sub do_invoke {	1009	sub do_invoke {
728	my $event = shift;	1010	my $event = shift;
729	my $callbacks = shift;	1011	my $callbacks = shift;
730		1012
731	@invoke_results = ();	1013	@INVOKE_RESULTS = ();
732		1014
733	local $override;	1015	local $override;
734		1016
735	for (@$callbacks) {	1017	for (@$callbacks) {
736	eval { &{$_->[1]} };	1018	eval { &{$_->[1]} };
…		…
745	}	1027	}
746		1028
747	0	1029	0
748	}	1030	}
749		1031
750	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1032	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
751		1033
752	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1034	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
753		1035
754	Generate an object-specific event with the given arguments.	1036	Generate an object-specific event with the given arguments.
755		1037
756	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1038	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
757	removed in future versions), and there is no public API to access override	1039	removed in future versions), and there is no public API to access override
758	results (if you must, access C<@cf::invoke_results> directly).	1040	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
759		1041
760	=back	1042	=back
761		1043
762	=cut	1044	=cut
763		1045
764	#############################################################################	1046	#############################################################################
765	# object support	1047	# object support
		1048
		1049	sub _object_equal($$);
		1050	sub _object_equal($$) {
		1051	my ($a, $b) = @_;
		1052
		1053	return 0 unless (ref $a) eq (ref $b);
		1054
		1055	if ("HASH" eq ref $a) {
		1056	my @ka = keys %$a;
		1057	my @kb = keys %$b;
		1058
		1059	return 0 if @ka != @kb;
		1060
		1061	for (0 .. $#ka) {
		1062	return 0 unless $ka[$_] eq $kb[$_];
		1063	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1064	}
		1065
		1066	} elsif ("ARRAY" eq ref $a) {
		1067
		1068	return 0 if @$a != @$b;
		1069
		1070	for (0 .. $#$a) {
		1071	return 0 unless _object_equal $a->[$_], $b->[$_];
		1072	}
		1073
		1074	} elsif ($a ne $b) {
		1075	return 0;
		1076	}
		1077
		1078	1
		1079	}
		1080
		1081	our $SLOW_MERGES;#d#
		1082	sub _can_merge {
		1083	my ($ob1, $ob2) = @_;
		1084
		1085	++$SLOW_MERGES;#d#
		1086
		1087	# we do the slow way here
		1088	return _object_equal $ob1, $ob2
		1089	}
766		1090
767	sub reattach {	1091	sub reattach {
768	# basically do the same as instantiate, without calling instantiate	1092	# basically do the same as instantiate, without calling instantiate
769	my ($obj) = @_;	1093	my ($obj) = @_;
		1094
		1095	# no longer needed after getting rid of delete_package?
		1096	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
770		1097
771	my $registry = $obj->registry;	1098	my $registry = $obj->registry;
772		1099
773	@$registry = ();	1100	@$registry = ();
774		1101
…		…
789	cf::attachable->attach (	1116	cf::attachable->attach (
790	prio => -1000000,	1117	prio => -1000000,
791	on_instantiate => sub {	1118	on_instantiate => sub {
792	my ($obj, $data) = @_;	1119	my ($obj, $data) = @_;
793		1120
794	$data = from_json $data;	1121	$data = decode_json $data;
795		1122
796	for (@$data) {	1123	for (@$data) {
797	my ($name, $args) = @$_;	1124	my ($name, $args) = @$_;
798		1125
799	$obj->attach ($name, %{$args || {} });	1126	$obj->attach ($name, %{$args || {} });
…		…
815	sub object_freezer_save {	1142	sub object_freezer_save {
816	my ($filename, $rdata, $objs) = @_;	1143	my ($filename, $rdata, $objs) = @_;
817		1144
818	sync_job {	1145	sync_job {
819	if (length $$rdata) {	1146	if (length $$rdata) {
		1147	utf8::decode (my $decname = $filename);
820	warn sprintf "saving %s (%d,%d)\n",	1148	warn sprintf "saving %s (%d,%d)\n",
821	$filename, length $$rdata, scalar @$objs;	1149	$decname, length $$rdata, scalar @$objs;
822		1150
823	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1151	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
824	chmod SAVE_MODE, $fh;	1152	aio_chmod $fh, SAVE_MODE;
825	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1153	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
826	aio_fsync $fh;	1154	aio_fsync $fh if $cf::USE_FSYNC;
827	close $fh;	1155	aio_close $fh;
828		1156
829	if (@$objs) {	1157	if (@$objs) {
830	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1158	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
831	chmod SAVE_MODE, $fh;	1159	aio_chmod $fh, SAVE_MODE;
832	my $data = Storable::nfreeze { version => 1, objs => $objs };	1160	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
833	aio_write $fh, 0, (length $data), $data, 0;	1161	aio_write $fh, 0, (length $data), $data, 0;
834	aio_fsync $fh;	1162	aio_fsync $fh if $cf::USE_FSYNC;
835	close $fh;	1163	aio_close $fh;
836	aio_rename "$filename.pst~", "$filename.pst";	1164	aio_rename "$filename.pst~", "$filename.pst";
837	}	1165	}
838	} else {	1166	} else {
839	aio_unlink "$filename.pst";	1167	aio_unlink "$filename.pst";
840	}	1168	}
841		1169
842	aio_rename "$filename~", $filename;	1170	aio_rename "$filename~", $filename;
		1171
		1172	$filename =~ s%/[^/]+$%%;
		1173	aio_pathsync $filename if $cf::USE_FSYNC;
843	} else {	1174	} else {
844	warn "FATAL: $filename~: $!\n";	1175	warn "unable to save objects: $filename~: $!\n";
845	}	1176	}
846	} else {	1177	} else {
847	aio_unlink $filename;	1178	aio_unlink $filename;
848	aio_unlink "$filename.pst";	1179	aio_unlink "$filename.pst";
849	}	1180	}
850	}	1181	};
851	}	1182	}
852		1183
853	sub object_freezer_as_string {	1184	sub object_freezer_as_string {
854	my ($rdata, $objs) = @_;	1185	my ($rdata, $objs) = @_;
855		1186
…		…
867	or return;	1198	or return;
868		1199
869	unless (aio_stat "$filename.pst") {	1200	unless (aio_stat "$filename.pst") {
870	(aio_load "$filename.pst", $av) >= 0	1201	(aio_load "$filename.pst", $av) >= 0
871	or return;	1202	or return;
		1203
872	$av = eval { (Storable::thaw $av)->{objs} };	1204	my $st = eval { Coro::Storable::thaw $av };
		1205	$av = $st->{objs};
873	}	1206	}
874		1207
		1208	utf8::decode (my $decname = $filename);
875	warn sprintf "loading %s (%d)\n",	1209	warn sprintf "loading %s (%d,%d)\n",
876	$filename, length $data, scalar @{$av || []};#d#	1210	$decname, length $data, scalar @{$av || []};
		1211
877	return ($data, $av);	1212	($data, $av)
878	}	1213	}
		1214
		1215	=head2 COMMAND CALLBACKS
		1216
		1217	=over 4
		1218
		1219	=cut
879		1220
880	#############################################################################	1221	#############################################################################
881	# command handling &c	1222	# command handling &c
882		1223
883	=item cf::register_command $name => \&callback($ob,$args);	1224	=item cf::register_command $name => \&callback($ob,$args);
…		…
896	push @{ $COMMAND{$name} }, [$caller, $cb];	1237	push @{ $COMMAND{$name} }, [$caller, $cb];
897	}	1238	}
898		1239
899	=item cf::register_extcmd $name => \&callback($pl,$packet);	1240	=item cf::register_extcmd $name => \&callback($pl,$packet);
900		1241
901	Register a callbackf ro execution when the client sends an extcmd packet.	1242	Register a callback for execution when the client sends an (synchronous)
		1243	extcmd packet. Ext commands will be processed in the order they are
		1244	received by the server, like other user commands. The first argument is
		1245	the logged-in player. Ext commands can only be processed after a player
		1246	has logged in successfully.
902		1247
903	If the callback returns something, it is sent back as if reply was being	1248	If the callback returns something, it is sent back as if reply was being
904	called.	1249	called.
905		1250
		1251	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1252
		1253	Register a callback for execution when the client sends an (asynchronous)
		1254	exticmd packet. Exti commands are processed by the server as soon as they
		1255	are received, i.e. out of order w.r.t. other commands. The first argument
		1256	is a client socket. Exti commands can be received anytime, even before
		1257	log-in.
		1258
		1259	If the callback returns something, it is sent back as if reply was being
		1260	called.
		1261
906	=cut	1262	=cut
907		1263
908	sub register_extcmd {	1264	sub register_extcmd {
909	my ($name, $cb) = @_;	1265	my ($name, $cb) = @_;
910		1266
911	my $caller = caller;
912	#warn "registering extcmd '$name' to '$caller'";
913
914	$EXTCMD{$name} = [$cb, $caller];	1267	$EXTCMD{$name} = $cb;
915	}	1268	}
		1269
		1270	sub register_exticmd {
		1271	my ($name, $cb) = @_;
		1272
		1273	$EXTICMD{$name} = $cb;
		1274	}
		1275
		1276	use File::Glob ();
916		1277
917	cf::player->attach (	1278	cf::player->attach (
918	on_command => sub {	1279	on_command => sub {
919	my ($pl, $name, $params) = @_;	1280	my ($pl, $name, $params) = @_;
920		1281
…		…
928	cf::override;	1289	cf::override;
929	},	1290	},
930	on_extcmd => sub {	1291	on_extcmd => sub {
931	my ($pl, $buf) = @_;	1292	my ($pl, $buf) = @_;
932		1293
933	my $msg = eval { from_json $buf };	1294	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
934		1295
935	if (ref $msg) {	1296	if (ref $msg) {
		1297	my ($type, $reply, @payload) =
		1298	"ARRAY" eq ref $msg
		1299	? @$msg
		1300	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1301
		1302	my @reply;
		1303
936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1304	if (my $cb = $EXTCMD{$type}) {
937	if (my %reply = $cb->[0]->($pl, $msg)) {	1305	@reply = $cb->($pl, @payload);
938	$pl->ext_reply ($msg->{msgid}, %reply);
939	}
940	}	1306	}
		1307
		1308	$pl->ext_reply ($reply, @reply)
		1309	if $reply;
		1310
941	} else {	1311	} else {
942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1312	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
943	}	1313	}
944		1314
945	cf::override;	1315	cf::override;
946	},	1316	},
947	);	1317	);
948		1318
949	sub register {	1319	# "readahead" all extensions
950	my ($base, $pkg) = @_;
951
952	#TODO
953	}
954
955	sub load_extension {	1320	sub cache_extensions {
956	my ($path) = @_;	1321	my $grp = IO::AIO::aio_group;
957		1322
958	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1323	add $grp IO::AIO::aio_readdir $LIBDIR, sub {
959	my $base = $1;	1324	for (grep /\.ext$/, @{$_[0]}) {
960	my $pkg = $1;	1325	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
961	$pkg =~ s/[^[:word:]]/_/g;
962	$pkg = "ext::$pkg";
963
964	warn "loading '$path' into '$pkg'\n";
965
966	open my $fh, "<:utf8", $path
967	or die "$path: $!";
968
969	my $source =
970	"package $pkg; use strict; use utf8;\n"
971	. "#line 1 \"$path\"\n{\n"
972	. (do { local $/; <$fh> })
973	. "\n};\n1";
974
975	eval $source
976	or die $@ ? "$path: $@\n"
977	: "extension disabled.\n";
978
979	push @exts, $pkg;
980	$ext_pkg{$base} = $pkg;
981
982	# no strict 'refs';
983	# @{"$pkg\::ISA"} = ext::;
984
985	register $base, $pkg;
986	}
987
988	sub unload_extension {
989	my ($pkg) = @_;
990
991	warn "removing extension $pkg\n";
992
993	# remove hooks
994	#TODO
995	# for my $idx (0 .. $#PLUGIN_EVENT) {
996	# delete $hook[$idx]{$pkg};
997	# }
998
999	# remove commands
1000	for my $name (keys %COMMAND) {
1001	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1002
1003	if (@cb) {
1004	$COMMAND{$name} = \@cb;
1005	} else {
1006	delete $COMMAND{$name};
1007	}	1326	}
1008	}	1327	};
1009		1328
1010	# remove extcmds	1329	$grp
1011	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1012	delete $EXTCMD{$name};
1013	}
1014
1015	if (my $cb = $pkg->can ("unload")) {
1016	eval {
1017	$cb->($pkg);
1018	1
1019	} or warn "$pkg unloaded, but with errors: $@";
1020	}
1021
1022	Symbol::delete_package $pkg;
1023	}	1330	}
1024		1331
1025	sub load_extensions {	1332	sub load_extensions {
		1333	cf::sync_job {
		1334	my %todo;
		1335
1026	for my $ext (<$LIBDIR/*.ext>) {	1336	for my $path (<$LIBDIR/*.ext>) {
1027	next unless -r $ext;	1337	next unless -r $path;
1028	eval {	1338
1029	load_extension $ext;	1339	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1340	my $base = $1;
		1341	my $pkg = $1;
		1342	$pkg =~ s/[^[:word:]]/_/g;
		1343	$pkg = "ext::$pkg";
		1344
		1345	open my $fh, "<:utf8", $path
		1346	or die "$path: $!";
		1347
		1348	my $source = do { local $/; <$fh> };
		1349
		1350	my %ext = (
		1351	path => $path,
		1352	base => $base,
		1353	pkg => $pkg,
		1354	);
		1355
		1356	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1357	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1358
		1359	$ext{source} =
		1360	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1361	. "#line 1 \"$path\"\n{\n"
		1362	. $source
		1363	. "\n};\n1";
		1364
		1365	$todo{$base} = \%ext;
		1366	}
		1367
		1368	my %done;
		1369	while (%todo) {
		1370	my $progress;
		1371
		1372	while (my ($k, $v) = each %todo) {
		1373	for (split /,\s*/, $v->{meta}{depends}) {
		1374	goto skip
		1375	unless exists $done{$_};
		1376	}
		1377
		1378	warn "... loading '$k' into '$v->{pkg}'\n";
		1379
		1380	unless (eval $v->{source}) {
		1381	my $msg = $@ ? "$v->{path}: $@\n"
		1382	: "$v->{base}: extension inactive.\n";
		1383
		1384	if (exists $v->{meta}{mandatory}) {
		1385	warn $msg;
		1386	cf::cleanup "mandatory extension failed to load, exiting.";
		1387	}
		1388
		1389	warn $msg;
		1390	}
		1391
		1392	$done{$k} = delete $todo{$k};
		1393	push @EXTS, $v->{pkg};
		1394	$progress = 1;
1030	1	1395	}
1031	} or warn "$ext not loaded: $@";	1396
		1397	skip:
		1398	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1399	unless $progress;
		1400	}
1032	}	1401	};
1033	}	1402	}
1034		1403
1035	#############################################################################	1404	#############################################################################
1036	# load/save/clean perl data associated with a map
1037		1405
1038	*cf::mapsupport::on_clean = sub {	1406	=back
1039	my ($map) = @_;
1040
1041	my $path = $map->tmpname;
1042	defined $path or return;
1043
1044	unlink "$path.pst";
1045	};
1046
1047	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1048
1049	#############################################################################
1050	# load/save perl data associated with player->ob objects
1051
1052	sub all_objects(@) {
1053	@_, map all_objects ($_->inv), @_
1054	}
1055
1056	# TODO: compatibility cruft, remove when no longer needed
1057	cf::player->attach (
1058	on_load => sub {
1059	my ($pl, $path) = @_;
1060
1061	for my $o (all_objects $pl->ob) {
1062	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1063	$o->set_ob_key_value ("_perl_data");
1064
1065	%$o = %{ Storable::thaw pack "H*", $value };
1066	}
1067	}
1068	},
1069	);
1070
1071	#############################################################################
1072		1407
1073	=head2 CORE EXTENSIONS	1408	=head2 CORE EXTENSIONS
1074		1409
1075	Functions and methods that extend core crossfire objects.	1410	Functions and methods that extend core deliantra objects.
1076		1411
1077	=cut	1412	=cut
1078		1413
1079	package cf::player;	1414	package cf::player;
1080		1415
		1416	use Coro::AIO;
		1417
1081	=head3 cf::player	1418	=head3 cf::player
1082		1419
1083	=over 4	1420	=over 4
1084		1421
		1422	=item cf::player::num_playing
		1423
		1424	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1425
		1426	=cut
		1427
		1428	sub num_playing {
		1429	scalar grep
		1430	$_->ob->map
		1431	&& !$_->hidden
		1432	&& !$_->ob->flag (cf::FLAG_WIZ),
		1433	cf::player::list
		1434	}
		1435
1085	=item cf::player::find $login	1436	=item cf::player::find $login
1086		1437
1087	Returns the given player object, loading it if necessary (might block).	1438	Returns the given player object, loading it if necessary (might block).
1088		1439
1089	=cut	1440	=cut
1090		1441
		1442	sub playerdir($) {
		1443	"$PLAYERDIR/"
		1444	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1445	}
		1446
1091	sub path($) {	1447	sub path($) {
1092	sprintf "%s/%s/%s/%s.pl",	1448	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1093	cf::localdir, cf::playerdir,	1449
1094	(ref $_[0] ? $_[0]->ob->name : $_[0]) x 2	1450	(playerdir $login) . "/playerdata"
1095	}	1451	}
1096		1452
1097	sub find_active($) {	1453	sub find_active($) {
1098	$cf::PLAYER{$_[0]}	1454	$cf::PLAYER{$_[0]}
1099	and $cf::PLAYER{$_[0]}->active	1455	and $cf::PLAYER{$_[0]}->active
…		…
1102		1458
1103	sub exists($) {	1459	sub exists($) {
1104	my ($login) = @_;	1460	my ($login) = @_;
1105		1461
1106	$cf::PLAYER{$login}	1462	$cf::PLAYER{$login}
1107	or cf::sync_job { !aio_stat $login }	1463	or !aio_stat path $login
1108	}	1464	}
1109		1465
1110	sub find($) {	1466	sub find($) {
1111	return $cf::PLAYER{$_[0]} || do {	1467	return $cf::PLAYER{$_[0]} || do {
1112	my $login = $_[0];	1468	my $login = $_[0];
1113		1469
1114	my $guard = cf::lock_acquire "user_find:$login";	1470	my $guard = cf::lock_acquire "user_find:$login";
1115		1471
1116	$cf::PLAYER{$login} ||= (load_pl path $login or return);	1472	$cf::PLAYER{$_[0]} || do {
		1473	# rename old playerfiles to new ones
		1474	#TODO: remove when no longer required
		1475	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1476	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1477	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1478	aio_unlink +(playerdir $login) . "/$login.pl";
		1479
		1480	my $f = new_from_file cf::object::thawer path $login
		1481	or return;
		1482
		1483	my $pl = cf::player::load_pl $f
		1484	or return;
		1485
		1486	local $cf::PLAYER_LOADING{$login} = $pl;
		1487	$f->resolve_delayed_derefs;
		1488	$cf::PLAYER{$login} = $pl
		1489	}
1117	};	1490	}
1118	}	1491	}
1119		1492
1120	sub save($) {	1493	sub save($) {
1121	my ($pl) = @_;	1494	my ($pl) = @_;
1122		1495
…		…
1124		1497
1125	my $path = path $pl;	1498	my $path = path $pl;
1126	my $guard = cf::lock_acquire "user_save:$path";	1499	my $guard = cf::lock_acquire "user_save:$path";
1127		1500
1128	return if $pl->{deny_save};	1501	return if $pl->{deny_save};
		1502
		1503	aio_mkdir playerdir $pl, 0770;
1129	$pl->{last_save} = $cf::RUNTIME;	1504	$pl->{last_save} = $cf::RUNTIME;
1130		1505
1131	Coro::cede;	1506	cf::get_slot 0.01;
		1507
1132	$pl->save_pl ($path);	1508	$pl->save_pl ($path);
1133	Coro::cede;	1509	cf::cede_to_tick;
1134	}	1510	}
1135		1511
1136	sub new($) {	1512	sub new($) {
1137	my ($login) = @_;	1513	my ($login) = @_;
1138		1514
…		…
1144	$cf::PLAYER{$login} = $self;	1520	$cf::PLAYER{$login} = $self;
1145		1521
1146	$self	1522	$self
1147	}	1523	}
1148		1524
		1525	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1526
		1527	=cut
		1528
		1529	sub send_msg {
		1530	my $ns = shift->ns
		1531	or return;
		1532	$ns->send_msg (@_);
		1533	}
		1534
		1535	=item $pl->quit_character
		1536
		1537	Nukes the player without looking back. If logged in, the connection will
		1538	be destroyed. May block for a long time.
		1539
		1540	=cut
		1541
		1542	sub quit_character {
		1543	my ($pl) = @_;
		1544
		1545	my $name = $pl->ob->name;
		1546
		1547	$pl->{deny_save} = 1;
		1548	$pl->password ("*"); # this should lock out the player until we have nuked the dir
		1549
		1550	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1551	$pl->deactivate;
		1552	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1553	$pl->ob->check_score;
		1554	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1555	$pl->ns->destroy if $pl->ns;
		1556
		1557	my $path = playerdir $pl;
		1558	my $temp = "$path~$cf::RUNTIME~deleting~";
		1559	aio_rename $path, $temp;
		1560	delete $cf::PLAYER{$pl->ob->name};
		1561	$pl->destroy;
		1562
		1563	my $prefix = qr<^~\Q$name\E/>;
		1564
		1565	# nuke player maps
		1566	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1567
		1568	IO::AIO::aio_rmtree $temp;
		1569	}
		1570
		1571	=item $pl->kick
		1572
		1573	Kicks a player out of the game. This destroys the connection.
		1574
		1575	=cut
		1576
		1577	sub kick {
		1578	my ($pl, $kicker) = @_;
		1579
		1580	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1581	$pl->killer ("kicked");
		1582	$pl->ns->destroy;
		1583	}
		1584
		1585	=item cf::player::list_logins
		1586
		1587	Returns am arrayref of all valid playernames in the system, can take a
		1588	while and may block, so not sync_job-capable, ever.
		1589
		1590	=cut
		1591
		1592	sub list_logins {
		1593	my $dirs = aio_readdir $PLAYERDIR
		1594	or return [];
		1595
		1596	my @logins;
		1597
		1598	for my $login (@$dirs) {
		1599	my $path = path $login;
		1600
		1601	# a .pst is a dead give-away for a valid player
		1602	# if no pst file found, open and chekc for blocked users
		1603	if (aio_stat "$path.pst") {
		1604	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1605	aio_read $fh, 0, 512, my $buf, 0 or next;
		1606	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1607	}
		1608
		1609	utf8::decode $login;
		1610	push @logins, $login;
		1611	}
		1612
		1613	\@logins
		1614	}
		1615
		1616	=item $player->maps
		1617
		1618	Returns an arrayref of map paths that are private for this
		1619	player. May block.
		1620
		1621	=cut
		1622
		1623	sub maps($) {
		1624	my ($pl) = @_;
		1625
		1626	$pl = ref $pl ? $pl->ob->name : $pl;
		1627
		1628	my $files = aio_readdir playerdir $pl
		1629	or return;
		1630
		1631	my @paths;
		1632
		1633	for (@$files) {
		1634	utf8::decode $_;
		1635	next if /\.(?:pl|pst)$/;
		1636	next unless /^$PATH_SEP/o;
		1637
		1638	push @paths, cf::map::normalise "~$pl/$_";
		1639	}
		1640
		1641	\@paths
		1642	}
		1643
		1644	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1645
		1646	Expand deliantra pod fragments into protocol xml.
		1647
1149	=item $player->ext_reply ($msgid, $msgtype, %msg)	1648	=item $player->ext_reply ($msgid, @msg)
1150		1649
1151	Sends an ext reply to the player.	1650	Sends an ext reply to the player.
1152		1651
1153	=cut	1652	=cut
1154		1653
1155	sub ext_reply($$$%) {	1654	sub ext_reply($$@) {
1156	my ($self, $id, %msg) = @_;	1655	my ($self, $id, @msg) = @_;
1157		1656
1158	$msg{msgid} = $id;	1657	$self->ns->ext_reply ($id, @msg)
1159
1160	$self->send ("ext " . cf::to_json \%msg);
1161	}	1658	}
1162		1659
1163	package cf;	1660	=item $player->ext_msg ($type, @msg)
		1661
		1662	Sends an ext event to the client.
		1663
		1664	=cut
		1665
		1666	sub ext_msg($$@) {
		1667	my ($self, $type, @msg) = @_;
		1668
		1669	$self->ns->ext_msg ($type, @msg);
		1670	}
		1671
		1672	=head3 cf::region
		1673
		1674	=over 4
		1675
		1676	=cut
		1677
		1678	package cf::region;
		1679
		1680	=item cf::region::find_by_path $path
		1681
		1682	Tries to decuce the likely region for a map knowing only its path.
		1683
		1684	=cut
		1685
		1686	sub find_by_path($) {
		1687	my ($path) = @_;
		1688
		1689	my ($match, $specificity);
		1690
		1691	for my $region (list) {
		1692	if ($region->{match} && $path =~ $region->{match}) {
		1693	($match, $specificity) = ($region, $region->specificity)
		1694	if $region->specificity > $specificity;
		1695	}
		1696	}
		1697
		1698	$match
		1699	}
1164		1700
1165	=back	1701	=back
1166
1167		1702
1168	=head3 cf::map	1703	=head3 cf::map
1169		1704
1170	=over 4	1705	=over 4
1171		1706
…		…
1174	package cf::map;	1709	package cf::map;
1175		1710
1176	use Fcntl;	1711	use Fcntl;
1177	use Coro::AIO;	1712	use Coro::AIO;
1178		1713
		1714	use overload
		1715	'""' => \&as_string,
		1716	fallback => 1;
		1717
1179	our $MAX_RESET = 3600;	1718	our $MAX_RESET = 3600;
1180	our $DEFAULT_RESET = 3000;	1719	our $DEFAULT_RESET = 3000;
1181		1720
1182	sub generate_random_map {	1721	sub generate_random_map {
1183	my ($path, $rmp) = @_;	1722	my ($self, $rmp) = @_;
		1723
		1724	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1184		1725
1185	# mit "rum" bekleckern, nicht	1726	# mit "rum" bekleckern, nicht
1186	cf::map::_create_random_map	1727	$self->_create_random_map (
1187	$path,
1188	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1728	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1189	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1729	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1190	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1730	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1191	$rmp->{exit_on_final_map},	1731	$rmp->{exit_on_final_map},
1192	$rmp->{xsize}, $rmp->{ysize},	1732	$rmp->{xsize}, $rmp->{ysize},
1193	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1733	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1194	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1734	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1195	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1735	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1196	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1736	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1197	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1737	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1198	(cf::region::find $rmp->{region})	1738	(cf::region::find $rmp->{region}), $rmp->{custom}
		1739	)
1199	}	1740	}
1200		1741
1201	# and all this just because we cannot iterate over	1742	=item cf::map->register ($regex, $prio)
1202	# all maps in C++...
1203	sub change_all_map_light {
1204	my ($change) = @_;
1205		1743
1206	$_->change_map_light ($change)	1744	Register a handler for the map path matching the given regex at the
1207	for grep $_->outdoor, values %cf::MAP;	1745	givne priority (higher is better, built-in handlers have priority 0, the
1208	}	1746	default).
1209		1747
1210	sub try_load_header($) {	1748	=cut
		1749
		1750	sub register {
		1751	my (undef, $regex, $prio) = @_;
		1752	my $pkg = caller;
		1753
		1754	no strict;
		1755	push @{"$pkg\::ISA"}, __PACKAGE__;
		1756
		1757	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1758	}
		1759
		1760	# also paths starting with '/'
		1761	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1762
		1763	sub thawer_merge {
		1764	my ($self, $merge) = @_;
		1765
		1766	# we have to keep some variables in memory intact
		1767	local $self->{path};
		1768	local $self->{load_path};
		1769
		1770	$self->SUPER::thawer_merge ($merge);
		1771	}
		1772
		1773	sub normalise {
1211	my ($path) = @_;	1774	my ($path, $base) = @_;
		1775
		1776	$path = "$path"; # make sure its a string
		1777
		1778	$path =~ s/\.map$//;
		1779
		1780	# map plan:
		1781	#
		1782	# /! non-realised random map exit (special hack!)
		1783	# {... are special paths that are not being touched
		1784	# ?xxx/... are special absolute paths
		1785	# ?random/... random maps
		1786	# /... normal maps
		1787	# ~user/... per-player map of a specific user
		1788
		1789	$path =~ s/$PATH_SEP/\//go;
		1790
		1791	# treat it as relative path if it starts with
		1792	# something that looks reasonable
		1793	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1794	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1795
		1796	$base =~ s{[^/]+/?$}{};
		1797	$path = "$base/$path";
		1798	}
		1799
		1800	for ($path) {
		1801	redo if s{//}{/};
		1802	redo if s{/\.?/}{/};
		1803	redo if s{/[^/]+/\.\./}{/};
		1804	}
		1805
		1806	$path
		1807	}
		1808
		1809	sub new_from_path {
		1810	my (undef, $path, $base) = @_;
		1811
		1812	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1813
		1814	$path = normalise $path, $base;
		1815
		1816	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1817	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1818	my $self = bless cf::map::new, $pkg;
		1819	$self->{path} = $path; $self->path ($path);
		1820	$self->init; # pass $1 etc.
		1821	return $self;
		1822	}
		1823	}
		1824
		1825	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1826	()
		1827	}
		1828
		1829	sub init {
		1830	my ($self) = @_;
		1831
		1832	$self
		1833	}
		1834
		1835	sub as_string {
		1836	my ($self) = @_;
		1837
		1838	"$self->{path}"
		1839	}
		1840
		1841	# the displayed name, this is a one way mapping
		1842	sub visible_name {
		1843	&as_string
		1844	}
		1845
		1846	# the original (read-only) location
		1847	sub load_path {
		1848	my ($self) = @_;
		1849
		1850	"$MAPDIR/$self->{path}.map"
		1851	}
		1852
		1853	# the temporary/swap location
		1854	sub save_path {
		1855	my ($self) = @_;
		1856
		1857	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1858	"$TMPDIR/$path.map"
		1859	}
		1860
		1861	# the unique path, undef == no special unique path
		1862	sub uniq_path {
		1863	my ($self) = @_;
		1864
		1865	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1866	"$UNIQUEDIR/$path"
		1867	}
		1868
		1869	sub decay_objects {
		1870	my ($self) = @_;
		1871
		1872	return if $self->{deny_reset};
		1873
		1874	$self->do_decay_objects;
		1875	}
		1876
		1877	sub unlink_save {
		1878	my ($self) = @_;
		1879
		1880	utf8::encode (my $save = $self->save_path);
		1881	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1882	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1883	}
		1884
		1885	sub load_header_from($) {
		1886	my ($self, $path) = @_;
1212		1887
1213	utf8::encode $path;	1888	utf8::encode $path;
1214	aio_open $path, O_RDONLY, 0	1889	my $f = new_from_file cf::object::thawer $path
1215	or return;	1890	or return;
1216		1891
1217	my $map = cf::map::new	1892	$self->_load_header ($f)
1218	or return;	1893	or return;
1219		1894
1220	# for better error messages only, will be overwritten	1895	local $MAP_LOADING{$self->{path}} = $self;
1221	$map->path ($path);	1896	$f->resolve_delayed_derefs;
1222		1897
1223	$map->load_header ($path)	1898	$self->{load_path} = $path;
		1899
		1900	1
		1901	}
		1902
		1903	sub load_header_orig {
		1904	my ($self) = @_;
		1905
		1906	$self->load_header_from ($self->load_path)
		1907	}
		1908
		1909	sub load_header_temp {
		1910	my ($self) = @_;
		1911
		1912	$self->load_header_from ($self->save_path)
		1913	}
		1914
		1915	sub prepare_temp {
		1916	my ($self) = @_;
		1917
		1918	$self->last_access ((delete $self->{last_access})
		1919	|| $cf::RUNTIME); #d#
		1920	# safety
		1921	$self->{instantiate_time} = $cf::RUNTIME
		1922	if $self->{instantiate_time} > $cf::RUNTIME;
		1923	}
		1924
		1925	sub prepare_orig {
		1926	my ($self) = @_;
		1927
		1928	$self->{load_original} = 1;
		1929	$self->{instantiate_time} = $cf::RUNTIME;
		1930	$self->last_access ($cf::RUNTIME);
		1931	$self->instantiate;
		1932	}
		1933
		1934	sub load_header {
		1935	my ($self) = @_;
		1936
		1937	if ($self->load_header_temp) {
		1938	$self->prepare_temp;
		1939	} else {
		1940	$self->load_header_orig
1224	or return;	1941	or return;
		1942	$self->prepare_orig;
		1943	}
1225		1944
1226	$map->{load_path} = $path;	1945	$self->{deny_reset} = 1
		1946	if $self->no_reset;
1227		1947
1228	$map	1948	$self->default_region (cf::region::find_by_path $self->{path})
		1949	unless $self->default_region;
		1950
		1951	1
1229	}	1952	}
1230		1953
1231	sub find;	1954	sub find;
1232	sub find {	1955	sub find {
1233	my ($path, $origin) = @_;	1956	my ($path, $origin) = @_;
1234		1957
1235	#warn "find<$path,$origin>\n";#d#
1236
1237	$path = new cf::path $path, $origin && $origin->path;	1958	$path = normalise $path, $origin && $origin->path;
1238	my $key = $path->as_string;
1239		1959
1240	cf::lock_wait "map_find:$key";	1960	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1241
1242	$cf::MAP{$key} || do {
1243	my $guard = cf::lock_acquire "map_find:$key";	1961	my $guard2 = cf::lock_acquire "map_find:$path";
1244		1962
1245	# do it the slow way	1963	$cf::MAP{$path} || do {
1246	my $map = try_load_header $path->save_path;	1964	my $map = new_from_path cf::map $path
1247
1248	Coro::cede;
1249
1250	if ($map) {
1251	$map->last_access ((delete $map->{last_access})
1252	|| $cf::RUNTIME); #d#
1253	# safety
1254	$map->{instantiate_time} = $cf::RUNTIME
1255	if $map->{instantiate_time} > $cf::RUNTIME;
1256	} else {
1257	if (my $rmp = $path->random_map_params) {
1258	$map = generate_random_map $key, $rmp;
1259	} else {
1260	$map = try_load_header $path->load_path;
1261	}
1262
1263	$map or return;	1965	or return;
1264		1966
1265	$map->{load_original} = 1;
1266	$map->{instantiate_time} = $cf::RUNTIME;
1267	$map->last_access ($cf::RUNTIME);
1268	$map->instantiate;
1269
1270	# per-player maps become, after loading, normal maps
1271	$map->per_player (0) if $path->{user_rel};
1272	}
1273
1274	$map->path ($key);
1275	$map->{path} = $path;
1276	$map->{last_save} = $cf::RUNTIME;	1967	$map->{last_save} = $cf::RUNTIME;
1277		1968
1278	Coro::cede;	1969	$map->load_header
		1970	or return;
1279		1971
1280	if ($map->should_reset) {	1972	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1973	# doing this can freeze the server in a sync job, obviously
		1974	#$cf::WAIT_FOR_TICK->wait;
		1975	undef $guard2;
		1976	undef $guard1;
1281	$map->reset;	1977	$map->reset;
1282	undef $guard;
1283	$map = find $path	1978	return find $path;
1284	or return;
1285	}	1979	}
1286		1980
1287	$cf::MAP{$key} = $map	1981	$cf::MAP{$path} = $map
1288	}	1982	}
1289	}	1983	}
		1984
		1985	sub pre_load { }
		1986	sub post_load { }
1290		1987
1291	sub load {	1988	sub load {
1292	my ($self) = @_;	1989	my ($self) = @_;
1293		1990
		1991	local $self->{deny_reset} = 1; # loading can take a long time
		1992
1294	my $path = $self->{path};	1993	my $path = $self->{path};
		1994
		1995	{
1295	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1996	my $guard = cf::lock_acquire "map_data:$path";
1296		1997
		1998	return unless $self->valid;
1297	return if $self->in_memory != cf::MAP_SWAPPED;	1999	return unless $self->in_memory == cf::MAP_SWAPPED;
1298		2000
1299	$self->in_memory (cf::MAP_LOADING);	2001	$self->in_memory (cf::MAP_LOADING);
1300		2002
1301	$self->alloc;	2003	$self->alloc;
1302	$self->load_objects ($self->{load_path}, 1)	2004
		2005	$self->pre_load;
		2006	cf::cede_to_tick;
		2007
		2008	my $f = new_from_file cf::object::thawer $self->{load_path};
		2009	$f->skip_block;
		2010	$self->_load_objects ($f)
1303	or return;	2011	or return;
1304		2012
1305	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2013	$self->post_load_original
1306	if delete $self->{load_original};	2014	if delete $self->{load_original};
1307		2015
1308	if (my $uniq = $path->uniq_path) {	2016	if (my $uniq = $self->uniq_path) {
1309	utf8::encode $uniq;	2017	utf8::encode $uniq;
1310	if (aio_open $uniq, O_RDONLY, 0) {	2018	unless (aio_stat $uniq) {
		2019	if (my $f = new_from_file cf::object::thawer $uniq) {
1311	$self->clear_unique_items;	2020	$self->clear_unique_items;
1312	$self->load_objects ($uniq, 0);	2021	$self->_load_objects ($f);
		2022	$f->resolve_delayed_derefs;
		2023	}
1313	}	2024	}
1314	}	2025	}
1315		2026
1316	Coro::cede;	2027	$f->resolve_delayed_derefs;
1317		2028
		2029	cf::cede_to_tick;
1318	# now do the right thing for maps	2030	# now do the right thing for maps
1319	$self->link_multipart_objects;	2031	$self->link_multipart_objects;
1320
1321	if ($self->{path}->is_style_map) {
1322	$self->{deny_save} = 1;
1323	$self->{deny_reset} = 1;
1324	} else {
1325	$self->fix_auto_apply;
1326	$self->decay_objects;
1327	$self->update_buttons;
1328	$self->set_darkness_map;
1329	$self->difficulty ($self->estimate_difficulty)	2032	$self->difficulty ($self->estimate_difficulty)
1330	unless $self->difficulty;	2033	unless $self->difficulty;
		2034	cf::cede_to_tick;
		2035
		2036	unless ($self->{deny_activate}) {
		2037	$self->decay_objects;
		2038	$self->fix_auto_apply;
		2039	$self->update_buttons;
		2040	cf::cede_to_tick;
1331	$self->activate;	2041	$self->activate;
1332	}	2042	}
1333		2043
1334	Coro::cede;	2044	$self->{last_save} = $cf::RUNTIME;
		2045	$self->last_access ($cf::RUNTIME);
1335		2046
1336	$self->in_memory (cf::MAP_IN_MEMORY);	2047	$self->in_memory (cf::MAP_ACTIVE);
		2048	}
		2049
		2050	$self->post_load;
		2051	}
		2052
		2053	sub customise_for {
		2054	my ($self, $ob) = @_;
		2055
		2056	return find "~" . $ob->name . "/" . $self->{path}
		2057	if $self->per_player;
		2058
		2059	# return find "?party/" . $ob->name . "/" . $self->{path}
		2060	# if $self->per_party;
		2061
		2062	$self
		2063	}
		2064
		2065	# find and load all maps in the 3x3 area around a map
		2066	sub load_neighbours {
		2067	my ($map) = @_;
		2068
		2069	my @neigh; # diagonal neighbours
		2070
		2071	for (0 .. 3) {
		2072	my $neigh = $map->tile_path ($_)
		2073	or next;
		2074	$neigh = find $neigh, $map
		2075	or next;
		2076	$neigh->load;
		2077
		2078	push @neigh,
		2079	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2080	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2081	}
		2082
		2083	for (grep defined $_->[0], @neigh) {
		2084	my ($path, $origin) = @$_;
		2085	my $neigh = find $path, $origin
		2086	or next;
		2087	$neigh->load;
		2088	}
1337	}	2089	}
1338		2090
1339	sub find_sync {	2091	sub find_sync {
1340	my ($path, $origin) = @_;	2092	my ($path, $origin) = @_;
1341		2093
1342	cf::sync_job { cf::map::find $path, $origin }	2094	cf::sync_job { find $path, $origin }
1343	}	2095	}
1344		2096
1345	sub do_load_sync {	2097	sub do_load_sync {
1346	my ($map) = @_;	2098	my ($map) = @_;
1347		2099
		2100	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2101	if $Coro::current == $Coro::main;
		2102
1348	cf::sync_job { $map->load };	2103	cf::sync_job { $map->load };
		2104	}
		2105
		2106	our %MAP_PREFETCH;
		2107	our $MAP_PREFETCHER = undef;
		2108
		2109	sub find_async {
		2110	my ($path, $origin, $load) = @_;
		2111
		2112	$path = normalise $path, $origin && $origin->{path};
		2113
		2114	if (my $map = $cf::MAP{$path}) {
		2115	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2116	}
		2117
		2118	$MAP_PREFETCH{$path} |= $load;
		2119
		2120	$MAP_PREFETCHER ||= cf::async {
		2121	$Coro::current->{desc} = "map prefetcher";
		2122
		2123	while (%MAP_PREFETCH) {
		2124	while (my ($k, $v) = each %MAP_PREFETCH) {
		2125	if (my $map = find $k) {
		2126	$map->load if $v;
		2127	}
		2128
		2129	delete $MAP_PREFETCH{$k};
		2130	}
		2131	}
		2132	undef $MAP_PREFETCHER;
		2133	};
		2134	$MAP_PREFETCHER->prio (6);
		2135
		2136	()
1349	}	2137	}
1350		2138
1351	sub save {	2139	sub save {
1352	my ($self) = @_;	2140	my ($self) = @_;
1353		2141
1354	my $lock = cf::lock_acquire "map_data:" . $self->path;	2142	my $lock = cf::lock_acquire "map_data:$self->{path}";
1355		2143
1356	$self->{last_save} = $cf::RUNTIME;	2144	$self->{last_save} = $cf::RUNTIME;
1357		2145
1358	return unless $self->dirty;	2146	return unless $self->dirty;
1359		2147
1360	my $save = $self->{path}->save_path; utf8::encode $save;	2148	my $save = $self->save_path; utf8::encode $save;
1361	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2149	my $uniq = $self->uniq_path; utf8::encode $uniq;
1362		2150
1363	$self->{load_path} = $save;	2151	$self->{load_path} = $save;
1364		2152
1365	return if $self->{deny_save};	2153	return if $self->{deny_save};
1366		2154
1367	local $self->{last_access} = $self->last_access;#d#	2155	local $self->{last_access} = $self->last_access;#d#
1368		2156
1369	cf::async {	2157	cf::async {
		2158	$Coro::current->{desc} = "map player save";
1370	$_->contr->save for $self->players;	2159	$_->contr->save for $self->players;
1371	};	2160	};
1372		2161
		2162	cf::get_slot 0.02;
		2163
1373	if ($uniq) {	2164	if ($uniq) {
1374	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2165	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1375	$self->save_objects ($uniq, cf::IO_UNIQUES);	2166	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1376	} else {	2167	} else {
1377	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2168	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1378	}	2169	}
1379	}	2170	}
1380		2171
1381	sub swap_out {	2172	sub swap_out {
1382	my ($self) = @_;	2173	my ($self) = @_;
1383		2174
1384	# save first because save cedes	2175	# save first because save cedes
1385	$self->save;	2176	$self->save;
1386		2177
1387	my $lock = cf::lock_acquire "map_data:" . $self->path;	2178	my $lock = cf::lock_acquire "map_data:$self->{path}";
1388		2179
1389	return if $self->players;	2180	return if $self->players;
1390	return if $self->in_memory != cf::MAP_IN_MEMORY;	2181	return if $self->in_memory != cf::MAP_ACTIVE;
1391	return if $self->{deny_save};	2182	return if $self->{deny_save};
1392		2183
		2184	$self->in_memory (cf::MAP_SWAPPED);
		2185
		2186	$self->deactivate;
		2187	$_->clear_links_to ($self) for values %cf::MAP;
1393	$self->clear;	2188	$self->clear;
1394	$self->in_memory (cf::MAP_SWAPPED);
1395	}	2189	}
1396		2190
1397	sub reset_at {	2191	sub reset_at {
1398	my ($self) = @_;	2192	my ($self) = @_;
1399		2193
1400	# TODO: safety, remove and allow resettable per-player maps	2194	# TODO: safety, remove and allow resettable per-player maps
1401	return 1e99 if $self->{path}{user_rel};
1402	return 1e99 if $self->{deny_reset};	2195	return 1e99 if $self->{deny_reset};
1403		2196
1404	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2197	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1405	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2198	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1406		2199
…		…
1411	my ($self) = @_;	2204	my ($self) = @_;
1412		2205
1413	$self->reset_at <= $cf::RUNTIME	2206	$self->reset_at <= $cf::RUNTIME
1414	}	2207	}
1415		2208
1416	sub unlink_save {
1417	my ($self) = @_;
1418
1419	utf8::encode (my $save = $self->{path}->save_path);
1420	aioreq_pri 3; IO::AIO::aio_unlink $save;
1421	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1422	}
1423
1424	sub rename {
1425	my ($self, $new_path) = @_;
1426
1427	$self->unlink_save;
1428
1429	delete $cf::MAP{$self->path};
1430	$self->{path} = new cf::path $new_path;
1431	$self->path ($self->{path}->as_string);
1432	$cf::MAP{$self->path} = $self;
1433
1434	$self->save;
1435	}
1436
1437	sub reset {	2209	sub reset {
1438	my ($self) = @_;	2210	my ($self) = @_;
1439		2211
1440	my $lock = cf::lock_acquire "map_data:" . $self->path;	2212	my $lock = cf::lock_acquire "map_data:$self->{path}";
1441		2213
1442	return if $self->players;	2214	return if $self->players;
1443	return if $self->{path}{user_rel};#d#
1444		2215
1445	warn "resetting map ", $self->path;#d#	2216	warn "resetting map ", $self->path;
		2217
		2218	$self->in_memory (cf::MAP_SWAPPED);
		2219
		2220	# need to save uniques path
		2221	unless ($self->{deny_save}) {
		2222	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2223
		2224	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2225	if $uniq;
		2226	}
1446		2227
1447	delete $cf::MAP{$self->path};	2228	delete $cf::MAP{$self->path};
1448		2229
		2230	$self->deactivate;
1449	$_->clear_links_to ($self) for values %cf::MAP;	2231	$_->clear_links_to ($self) for values %cf::MAP;
		2232	$self->clear;
1450		2233
1451	$self->unlink_save;	2234	$self->unlink_save;
1452	$self->destroy;	2235	$self->destroy;
1453	}	2236	}
1454		2237
1455	my $nuke_counter = "aaaa";	2238	my $nuke_counter = "aaaa";
1456		2239
1457	sub nuke {	2240	sub nuke {
1458	my ($self) = @_;	2241	my ($self) = @_;
1459		2242
		2243	{
		2244	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2245
		2246	delete $cf::MAP{$self->path};
		2247
		2248	$self->unlink_save;
		2249
		2250	bless $self, "cf::map";
		2251	delete $self->{deny_reset};
1460	$self->{deny_save} = 1;	2252	$self->{deny_save} = 1;
1461	$self->reset_timeout (1);	2253	$self->reset_timeout (1);
1462	$self->rename ("{nuke}/" . ($nuke_counter++));	2254	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2255
		2256	$cf::MAP{$self->path} = $self;
		2257	}
		2258
1463	$self->reset; # polite request, might not happen	2259	$self->reset; # polite request, might not happen
1464	}	2260	}
1465		2261
1466	sub customise_for {	2262	=item $maps = cf::map::tmp_maps
1467	my ($map, $ob) = @_;
1468		2263
1469	if ($map->per_player) {	2264	Returns an arrayref with all map paths of currently instantiated and saved
1470	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2265	maps. May block.
		2266
		2267	=cut
		2268
		2269	sub tmp_maps() {
1471	}	2270	[
1472		2271	map {
1473	$map	2272	utf8::decode $_;
		2273	/\.map$/
		2274	? normalise $_
		2275	: ()
		2276	} @{ aio_readdir $TMPDIR or [] }
		2277	]
1474	}	2278	}
1475		2279
1476	sub emergency_save {	2280	=item $maps = cf::map::random_maps
1477	my $freeze_guard = cf::freeze_mainloop;
1478		2281
1479	warn "enter emergency map save\n";	2282	Returns an arrayref with all map paths of currently instantiated and saved
		2283	random maps. May block.
1480		2284
1481	cf::sync_job {	2285	=cut
1482	warn "begin emergency map save\n";	2286
1483	$_->save for values %cf::MAP;	2287	sub random_maps() {
		2288	[
		2289	map {
		2290	utf8::decode $_;
		2291	/\.map$/
		2292	? normalise "?random/$_"
		2293	: ()
		2294	} @{ aio_readdir $RANDOMDIR or [] }
		2295	]
		2296	}
		2297
		2298	=item cf::map::unique_maps
		2299
		2300	Returns an arrayref of paths of all shared maps that have
		2301	instantiated unique items. May block.
		2302
		2303	=cut
		2304
		2305	sub unique_maps() {
		2306	[
		2307	map {
		2308	utf8::decode $_;
		2309	s/\.map$//; # TODO future compatibility hack
		2310	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
		2311	? ()
		2312	: normalise $_
		2313	} @{ aio_readdir $UNIQUEDIR or [] }
		2314	]
		2315	}
		2316
		2317	=back
		2318
		2319	=head3 cf::object
		2320
		2321	=cut
		2322
		2323	package cf::object;
		2324
		2325	=over 4
		2326
		2327	=item $ob->inv_recursive
		2328
		2329	Returns the inventory of the object I<and> their inventories, recursively,
		2330	but I<not> the object itself.
		2331
		2332	=cut
		2333
		2334	sub inv_recursive_;
		2335	sub inv_recursive_ {
		2336	map { $_, inv_recursive_ $_->inv } @_
		2337	}
		2338
		2339	sub inv_recursive {
		2340	inv_recursive_ inv $_[0]
		2341	}
		2342
		2343	=item $ref = $ob->ref
		2344
		2345	Creates and returns a persistent reference to an object that can be stored as a string.
		2346
		2347	=item $ob = cf::object::deref ($refstring)
		2348
		2349	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2350	even if the object actually exists. May block.
		2351
		2352	=cut
		2353
		2354	sub deref {
		2355	my ($ref) = @_;
		2356
		2357	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2358	my ($uuid, $name) = ($1, $2);
		2359	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2360	or return;
		2361	$pl->ob->uuid eq $uuid
		2362	or return;
		2363
		2364	$pl->ob
		2365	} else {
		2366	warn "$ref: cannot resolve object reference\n";
		2367	undef
1484	};	2368	}
1485
1486	warn "end emergency map save\n";
1487	}	2369	}
1488		2370
1489	package cf;	2371	package cf;
1490		2372
1491	=back	2373	=back
1492
1493		2374
1494	=head3 cf::object::player	2375	=head3 cf::object::player
1495		2376
1496	=over 4	2377	=over 4
1497		2378
…		…
1500	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2381	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1501	can be C<undef>. Does the right thing when the player is currently in a	2382	can be C<undef>. Does the right thing when the player is currently in a
1502	dialogue with the given NPC character.	2383	dialogue with the given NPC character.
1503		2384
1504	=cut	2385	=cut
		2386
		2387	our $SAY_CHANNEL = {
		2388	id => "say",
		2389	title => "Map",
		2390	reply => "say ",
		2391	tooltip => "Things said to and replied from npcs near you and other players on the same map only.",
		2392	};
		2393
		2394	our $CHAT_CHANNEL = {
		2395	id => "chat",
		2396	title => "Chat",
		2397	reply => "chat ",
		2398	tooltip => "Player chat and shouts, global to the server.",
		2399	};
1505		2400
1506	# rough implementation of a future "reply" method that works	2401	# rough implementation of a future "reply" method that works
1507	# with dialog boxes.	2402	# with dialog boxes.
1508	#TODO: the first argument must go, split into a $npc->reply_to ( method	2403	#TODO: the first argument must go, split into a $npc->reply_to ( method
1509	sub cf::object::player::reply($$$;$) {	2404	sub cf::object::player::reply($$$;$) {
…		…
1511		2406
1512	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2407	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1513		2408
1514	if ($self->{record_replies}) {	2409	if ($self->{record_replies}) {
1515	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2410	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2411
1516	} else {	2412	} else {
		2413	my $pl = $self->contr;
		2414
		2415	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2416	my $dialog = $pl->{npc_dialog};
		2417	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2418
		2419	} else {
1517	$msg = $npc->name . " says: $msg" if $npc;	2420	$msg = $npc->name . " says: $msg" if $npc;
1518	$self->message ($msg, $flags);	2421	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2422	}
1519	}	2423	}
		2424	}
		2425
		2426	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2427
		2428	=cut
		2429
		2430	sub cf::object::send_msg {
		2431	my $pl = shift->contr
		2432	or return;
		2433	$pl->send_msg (@_);
1520	}	2434	}
1521		2435
1522	=item $player_object->may ("access")	2436	=item $player_object->may ("access")
1523		2437
1524	Returns wether the given player is authorized to access resource "access"	2438	Returns wether the given player is authorized to access resource "access"
…		…
1537		2451
1538	=item $player_object->enter_link	2452	=item $player_object->enter_link
1539		2453
1540	Freezes the player and moves him/her to a special map (C<{link}>).	2454	Freezes the player and moves him/her to a special map (C<{link}>).
1541		2455
1542	The player should be reaosnably safe there for short amounts of time. You	2456	The player should be reasonably safe there for short amounts of time (e.g.
1543	I<MUST> call C<leave_link> as soon as possible, though.	2457	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2458	though, as the palyer cannot control the character while it is on the link
		2459	map.
		2460
		2461	Will never block.
1544		2462
1545	=item $player_object->leave_link ($map, $x, $y)	2463	=item $player_object->leave_link ($map, $x, $y)
1546		2464
1547	Moves the player out of the specila link map onto the given map. If the	2465	Moves the player out of the special C<{link}> map onto the specified
1548	map is not valid (or omitted), the player will be moved back to the	2466	map. If the map is not valid (or omitted), the player will be moved back
1549	location he/she was before the call to C<enter_link>, or, if that fails,	2467	to the location he/she was before the call to C<enter_link>, or, if that
1550	to the emergency map position.	2468	fails, to the emergency map position.
1551		2469
1552	Might block.	2470	Might block.
1553		2471
1554	=cut	2472	=cut
		2473
		2474	sub link_map {
		2475	unless ($LINK_MAP) {
		2476	$LINK_MAP = cf::map::find "{link}"
		2477	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2478	$LINK_MAP->load;
		2479	}
		2480
		2481	$LINK_MAP
		2482	}
1555		2483
1556	sub cf::object::player::enter_link {	2484	sub cf::object::player::enter_link {
1557	my ($self) = @_;	2485	my ($self) = @_;
1558		2486
1559	$self->deactivate_recursive;	2487	$self->deactivate_recursive;
1560		2488
1561	return if $self->map == $LINK_MAP;	2489	return if UNIVERSAL::isa $self->map, "ext::map_link";
1562		2490
1563	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2491	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1564	if $self->map;	2492	if $self->map && $self->map->{path} ne "{link}";
1565		2493
1566	$self->enter_map ($LINK_MAP, 20, 20);	2494	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1567	}	2495	}
1568		2496
1569	sub cf::object::player::leave_link {	2497	sub cf::object::player::leave_link {
1570	my ($self, $map, $x, $y) = @_;	2498	my ($self, $map, $x, $y) = @_;
		2499
		2500	return unless $self->contr->active;
1571		2501
1572	my $link_pos = delete $self->{_link_pos};	2502	my $link_pos = delete $self->{_link_pos};
1573		2503
1574	unless ($map) {	2504	unless ($map) {
1575	# restore original map position	2505	# restore original map position
…		…
1589	# use -1 or undef as default coordinates, not 0, 0	2519	# use -1 or undef as default coordinates, not 0, 0
1590	($x, $y) = ($map->enter_x, $map->enter_y)	2520	($x, $y) = ($map->enter_x, $map->enter_y)
1591	if $x <=0 && $y <= 0;	2521	if $x <=0 && $y <= 0;
1592		2522
1593	$map->load;	2523	$map->load;
		2524	$map->load_neighbours;
1594		2525
1595	return unless $self->contr->active;	2526	return unless $self->contr->active;
		2527	$self->flag (cf::FLAG_DEBUG, 0);#d# temp
1596	$self->activate_recursive;	2528	$self->activate_recursive;
		2529
		2530	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1597	$self->enter_map ($map, $x, $y);	2531	$self->enter_map ($map, $x, $y);
1598	}	2532	}
1599		2533
1600	cf::player->attach (	2534	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1601	on_logout => sub {
1602	my ($pl) = @_;
1603		2535
1604	# abort map switching before logout	2536	Moves the player to the given map-path and coordinates by first freezing
1605	if ($pl->ob->{_link_pos}) {	2537	her, loading and preparing them map, calling the provided $check callback
1606	cf::sync_job {	2538	that has to return the map if sucecssful, and then unfreezes the player on
1607	$pl->ob->leave_link	2539	the new (success) or old (failed) map position. In either case, $done will
1608	};	2540	be called at the end of this process.
1609	}
1610	},
1611	on_login => sub {
1612	my ($pl) = @_;
1613		2541
1614	# try to abort aborted map switching on player login :)	2542	Note that $check will be called with a potentially non-loaded map, so if
1615	# should happen only on crashes	2543	it needs a loaded map it has to call C<< ->load >>.
1616	if ($pl->ob->{_link_pos}) {
1617	$pl->ob->enter_link;
1618	(async {
1619	# we need this sleep as the login has a concurrent enter_exit running
1620	# and this sleep increases chances of the player not ending up in scorn
1621	$pl->ob->reply (undef,
1622	"There was an internal problem at your last logout, "
1623	. "the server will try to bring you to your intended destination in a second.",
1624	cf::NDI_RED);
1625	Coro::Timer::sleep 1;
1626	$pl->ob->leave_link;
1627	})->prio (2);
1628	}
1629	},
1630	);
1631		2544
1632	=item $player_object->goto ($path, $x, $y)
1633
1634	=cut	2545	=cut
		2546
		2547	our $GOTOGEN;
1635		2548
1636	sub cf::object::player::goto {	2549	sub cf::object::player::goto {
1637	my ($self, $path, $x, $y) = @_;	2550	my ($self, $path, $x, $y, $check, $done) = @_;
		2551
		2552	# do generation counting so two concurrent goto's will be executed in-order
		2553	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1638		2554
1639	$self->enter_link;	2555	$self->enter_link;
1640		2556
1641	(async {	2557	(async {
1642	$path = new cf::path $path;	2558	$Coro::current->{desc} = "player::goto $path $x $y";
1643		2559
1644	my $map = cf::map::find $path->as_string;	2560	# *tag paths override both path and x|y
		2561	if ($path =~ /^\*(.*)$/) {
		2562	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2563	my $ob = $obs[rand @obs];
		2564
		2565	# see if we actually can go there
		2566	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2567	$ob = $obs[rand @obs];
		2568	} else {
		2569	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2570	}
		2571	# else put us there anyways for now #d#
		2572
		2573	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2574	} else {
		2575	($path, $x, $y) = (undef, undef, undef);
		2576	}
		2577	}
		2578
		2579	my $map = eval {
		2580	my $map = defined $path ? cf::map::find $path : undef;
		2581
		2582	if ($map) {
1645	$map = $map->customise_for ($self) if $map;	2583	$map = $map->customise_for ($self);
1646		2584	$map = $check->($map) if $check && $map;
1647	# warn "entering ", $map->path, " at ($x, $y)\n"	2585	} else {
1648	# if $map;
1649
1650	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2586	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2587	}
1651		2588
		2589	$map
		2590	};
		2591
		2592	if ($@) {
		2593	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2594	LOG llevError | logBacktrace, Carp::longmess $@;
		2595	}
		2596
		2597	if ($gen == $self->{_goto_generation}) {
		2598	delete $self->{_goto_generation};
1652	$self->leave_link ($map, $x, $y);	2599	$self->leave_link ($map, $x, $y);
		2600	}
		2601
		2602	$done->() if $done;
1653	})->prio (1);	2603	})->prio (1);
1654	}	2604	}
1655		2605
1656	=item $player_object->enter_exit ($exit_object)	2606	=item $player_object->enter_exit ($exit_object)
1657		2607
…		…
1659		2609
1660	sub parse_random_map_params {	2610	sub parse_random_map_params {
1661	my ($spec) = @_;	2611	my ($spec) = @_;
1662		2612
1663	my $rmp = { # defaults	2613	my $rmp = { # defaults
1664	xsize => 10,	2614	xsize => (cf::rndm 15, 40),
1665	ysize => 10,	2615	ysize => (cf::rndm 15, 40),
		2616	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2617	#layout => string,
1666	};	2618	};
1667		2619
1668	for (split /\n/, $spec) {	2620	for (split /\n/, $spec) {
1669	my ($k, $v) = split /\s+/, $_, 2;	2621	my ($k, $v) = split /\s+/, $_, 2;
1670		2622
…		…
1682	# that depends on the exit object	2634	# that depends on the exit object
1683		2635
1684	my $rmp = parse_random_map_params $exit->msg;	2636	my $rmp = parse_random_map_params $exit->msg;
1685		2637
1686	if ($exit->map) {	2638	if ($exit->map) {
1687	$rmp->{region} = $exit->map->region_name;	2639	$rmp->{region} = $exit->region->name;
1688	$rmp->{origin_map} = $exit->map->path;	2640	$rmp->{origin_map} = $exit->map->path;
1689	$rmp->{origin_x} = $exit->x;	2641	$rmp->{origin_x} = $exit->x;
1690	$rmp->{origin_y} = $exit->y;	2642	$rmp->{origin_y} = $exit->y;
		2643
		2644	$exit->map->touch;
1691	}	2645	}
1692		2646
1693	$rmp->{random_seed} ||= $exit->random_seed;	2647	$rmp->{random_seed} ||= $exit->random_seed;
1694		2648
1695	my $data = cf::to_json $rmp;	2649	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1696	my $md5 = Digest::MD5::md5_hex $data;	2650	my $md5 = Digest::MD5::md5_hex $data;
		2651	my $meta = "$RANDOMDIR/$md5.meta";
1697		2652
1698	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2653	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1699	aio_write $fh, 0, (length $data), $data, 0;	2654	aio_write $fh, 0, (length $data), $data, 0;
		2655	undef $fh;
		2656	aio_rename "$meta~", $meta;
1700		2657
		2658	my $slaying = "?random/$md5";
		2659
		2660	if ($exit->valid) {
1701	$exit->slaying ("?random/$md5");	2661	$exit->slaying ("?random/$md5");
1702	$exit->msg (undef);	2662	$exit->msg (undef);
		2663	}
1703	}	2664	}
1704	}	2665	}
1705		2666
1706	sub cf::object::player::enter_exit {	2667	sub cf::object::player::enter_exit {
1707	my ($self, $exit) = @_;	2668	my ($self, $exit) = @_;
…		…
1709	return unless $self->type == cf::PLAYER;	2670	return unless $self->type == cf::PLAYER;
1710		2671
1711	$self->enter_link;	2672	$self->enter_link;
1712		2673
1713	(async {	2674	(async {
1714	$self->deactivate_recursive; # just to be sure	2675	$Coro::current->{desc} = "enter_exit";
		2676
1715	unless (eval {	2677	unless (eval {
		2678	$self->deactivate_recursive; # just to be sure
		2679
		2680	# random map handling
		2681	{
		2682	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2683
1716	prepare_random_map $exit	2684	prepare_random_map $exit
1717	if $exit->slaying eq "/!";	2685	if $exit->slaying eq "/!";
		2686	}
1718		2687
1719	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;	2688	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1720	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2689	my $x = $exit->stats->hp;
		2690	my $y = $exit->stats->sp;
1721		2691
		2692	$self->goto ($map, $x, $y);
		2693
		2694	# if exit is damned, update players death & WoR home-position
		2695	$self->contr->savebed ($map, $x, $y)
		2696	if $exit->flag (cf::FLAG_DAMNED);
		2697
1722	1;	2698	1
1723	}) {	2699	}) {
1724	$self->message ("Something went wrong deep within the crossfire server. "	2700	$self->message ("Something went wrong deep within the deliantra server. "
1725	. "I'll try to bring you back to the map you were before. "	2701	. "I'll try to bring you back to the map you were before. "
1726	. "Please report this to the dungeon master",	2702	. "Please report this to the dungeon master!",
1727	cf::NDI_UNIQUE | cf::NDI_RED);	2703	cf::NDI_UNIQUE | cf::NDI_RED);
1728		2704
1729	warn "ERROR in enter_exit: $@";	2705	warn "ERROR in enter_exit: $@";
1730	$self->leave_link;	2706	$self->leave_link;
1731	}	2707	}
1732	})->prio (1);	2708	})->prio (1);
…		…
1745		2721
1746	sub cf::client::send_drawinfo {	2722	sub cf::client::send_drawinfo {
1747	my ($self, $text, $flags) = @_;	2723	my ($self, $text, $flags) = @_;
1748		2724
1749	utf8::encode $text;	2725	utf8::encode $text;
1750	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2726	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1751	}	2727	}
1752		2728
		2729	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2730
		2731	Send a drawinfo or msg packet to the client, formatting the msg for the
		2732	client if neccessary. C<$type> should be a string identifying the type of
		2733	the message, with C<log> being the default. If C<$color> is negative, suppress
		2734	the message unless the client supports the msg packet.
		2735
		2736	=cut
		2737
		2738	# non-persistent channels (usually the info channel)
		2739	our %CHANNEL = (
		2740	"c/identify" => {
		2741	id => "infobox",
		2742	title => "Identify",
		2743	reply => undef,
		2744	tooltip => "Items recently identified",
		2745	},
		2746	"c/examine" => {
		2747	id => "infobox",
		2748	title => "Examine",
		2749	reply => undef,
		2750	tooltip => "Signs and other items you examined",
		2751	},
		2752	"c/book" => {
		2753	id => "infobox",
		2754	title => "Book",
		2755	reply => undef,
		2756	tooltip => "The contents of a note or book",
		2757	},
		2758	"c/lookat" => {
		2759	id => "infobox",
		2760	title => "Look",
		2761	reply => undef,
		2762	tooltip => "What you saw there",
		2763	},
		2764	"c/who" => {
		2765	id => "infobox",
		2766	title => "Players",
		2767	reply => undef,
		2768	tooltip => "Shows players who are currently online",
		2769	},
		2770	"c/body" => {
		2771	id => "infobox",
		2772	title => "Body Parts",
		2773	reply => undef,
		2774	tooltip => "Shows which body parts you posess and are available",
		2775	},
		2776	"c/statistics" => {
		2777	id => "infobox",
		2778	title => "Statistics",
		2779	reply => undef,
		2780	tooltip => "Shows your primary statistics",
		2781	},
		2782	"c/skills" => {
		2783	id => "infobox",
		2784	title => "Skills",
		2785	reply => undef,
		2786	tooltip => "Shows your experience per skill and item power",
		2787	},
		2788	"c/resistances" => {
		2789	id => "infobox",
		2790	title => "Resistances",
		2791	reply => undef,
		2792	tooltip => "Shows your resistances",
		2793	},
		2794	"c/pets" => {
		2795	id => "infobox",
		2796	title => "Pets",
		2797	reply => undef,
		2798	tooltip => "Shows information abotu your pets/a specific pet",
		2799	},
		2800	"c/uptime" => {
		2801	id => "infobox",
		2802	title => "Uptime",
		2803	reply => undef,
		2804	tooltip => "How long the server has been running since last restart",
		2805	},
		2806	"c/mapinfo" => {
		2807	id => "infobox",
		2808	title => "Map Info",
		2809	reply => undef,
		2810	tooltip => "Information related to the maps",
		2811	},
		2812	"c/party" => {
		2813	id => "party",
		2814	title => "Party",
		2815	reply => "gsay ",
		2816	tooltip => "Messages and chat related to your party",
		2817	},
		2818	"c/death" => {
		2819	id => "death",
		2820	title => "Death",
		2821	reply => undef,
		2822	tooltip => "Reason for and more info about your most recent death",
		2823	},
		2824	"c/say" => $SAY_CHANNEL,
		2825	"c/chat" => $CHAT_CHANNEL,
		2826	);
		2827
		2828	sub cf::client::send_msg {
		2829	my ($self, $channel, $msg, $color, @extra) = @_;
		2830
		2831	$msg = $self->pl->expand_cfpod ($msg)
		2832	unless $color & cf::NDI_VERBATIM;
		2833
		2834	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2835
		2836	# check predefined channels, for the benefit of C
		2837	if ($CHANNEL{$channel}) {
		2838	$channel = $CHANNEL{$channel};
		2839
		2840	$self->ext_msg (channel_info => $channel);
		2841	$channel = $channel->{id};
		2842
		2843	} elsif (ref $channel) {
		2844	# send meta info to client, if not yet sent
		2845	unless (exists $self->{channel}{$channel->{id}}) {
		2846	$self->{channel}{$channel->{id}} = $channel;
		2847	$self->ext_msg (channel_info => $channel);
		2848	}
		2849
		2850	$channel = $channel->{id};
		2851	}
		2852
		2853	return unless @extra || length $msg;
		2854
		2855	# default colour, mask it out
		2856	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2857	if $color & cf::NDI_DEF;
		2858
		2859	my $pkt = "msg "
		2860	. $self->{json_coder}->encode (
		2861	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2862	);
		2863
		2864	# try lzf for large packets
		2865	$pkt = "lzf " . Compress::LZF::compress $pkt
		2866	if 1024 <= length $pkt and $self->{can_lzf};
		2867
		2868	# split very large packets
		2869	if (8192 < length $pkt and $self->{can_lzf}) {
		2870	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2871	$pkt = "frag";
		2872	}
		2873
		2874	$self->send_packet ($pkt);
		2875	}
		2876
		2877	=item $client->ext_msg ($type, @msg)
		2878
		2879	Sends an ext event to the client.
		2880
		2881	=cut
		2882
		2883	sub cf::client::ext_msg($$@) {
		2884	my ($self, $type, @msg) = @_;
		2885
		2886	if ($self->extcmd == 2) {
		2887	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2888	} elsif ($self->extcmd == 1) { # TODO: remove
		2889	push @msg, msgtype => "event_$type";
		2890	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2891	}
		2892	}
		2893
		2894	=item $client->ext_reply ($msgid, @msg)
		2895
		2896	Sends an ext reply to the client.
		2897
		2898	=cut
		2899
		2900	sub cf::client::ext_reply($$@) {
		2901	my ($self, $id, @msg) = @_;
		2902
		2903	if ($self->extcmd == 2) {
		2904	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2905	} elsif ($self->extcmd == 1) {
		2906	#TODO: version 1, remove
		2907	unshift @msg, msgtype => "reply", msgid => $id;
		2908	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2909	}
		2910	}
1753		2911
1754	=item $success = $client->query ($flags, "text", \&cb)	2912	=item $success = $client->query ($flags, "text", \&cb)
1755		2913
1756	Queues a query to the client, calling the given callback with	2914	Queues a query to the client, calling the given callback with
1757	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2915	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1758	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2916	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1759		2917
1760	Queries can fail, so check the return code. Or don't, as queries will become	2918	Queries can fail, so check the return code. Or don't, as queries will
1761	reliable at some point in the future.	2919	become reliable at some point in the future.
1762		2920
1763	=cut	2921	=cut
1764		2922
1765	sub cf::client::query {	2923	sub cf::client::query {
1766	my ($self, $flags, $text, $cb) = @_;	2924	my ($self, $flags, $text, $cb) = @_;
…		…
1774	utf8::encode $text;	2932	utf8::encode $text;
1775	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2933	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1776		2934
1777	$self->send_packet ($self->{query_queue}[0][0])	2935	$self->send_packet ($self->{query_queue}[0][0])
1778	if @{ $self->{query_queue} } == 1;	2936	if @{ $self->{query_queue} } == 1;
		2937
		2938	1
1779	}	2939	}
1780		2940
1781	cf::client->attach (	2941	cf::client->attach (
		2942	on_connect => sub {
		2943	my ($ns) = @_;
		2944
		2945	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2946	},
1782	on_reply => sub {	2947	on_reply => sub {
1783	my ($ns, $msg) = @_;	2948	my ($ns, $msg) = @_;
1784		2949
1785	# this weird shuffling is so that direct followup queries	2950	# this weird shuffling is so that direct followup queries
1786	# get handled first	2951	# get handled first
1787	my $queue = delete $ns->{query_queue}	2952	my $queue = delete $ns->{query_queue}
1788	or return; # be conservative, not sure how that can happen, but we saw a crash here	2953	or return; # be conservative, not sure how that can happen, but we saw a crash here
1789		2954
1790	(shift @$queue)->[1]->($msg);	2955	(shift @$queue)->[1]->($msg);
		2956	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1791		2957
1792	push @{ $ns->{query_queue} }, @$queue;	2958	push @{ $ns->{query_queue} }, @$queue;
1793		2959
1794	if (@{ $ns->{query_queue} } == @$queue) {	2960	if (@{ $ns->{query_queue} } == @$queue) {
1795	if (@$queue) {	2961	if (@$queue) {
…		…
1797	} else {	2963	} else {
1798	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2964	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1799	}	2965	}
1800	}	2966	}
1801	},	2967	},
		2968	on_exticmd => sub {
		2969	my ($ns, $buf) = @_;
		2970
		2971	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2972
		2973	if (ref $msg) {
		2974	my ($type, $reply, @payload) =
		2975	"ARRAY" eq ref $msg
		2976	? @$msg
		2977	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2978
		2979	my @reply;
		2980
		2981	if (my $cb = $EXTICMD{$type}) {
		2982	@reply = $cb->($ns, @payload);
		2983	}
		2984
		2985	$ns->ext_reply ($reply, @reply)
		2986	if $reply;
		2987
		2988	} else {
		2989	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2990	}
		2991
		2992	cf::override;
		2993	},
1802	);	2994	);
1803		2995
1804	=item $client->async (\&cb)	2996	=item $client->async (\&cb)
1805		2997
1806	Create a new coroutine, running the specified callback. The coroutine will	2998	Create a new coroutine, running the specified callback. The coroutine will
…		…
1847	our $safe = new Safe "safe";	3039	our $safe = new Safe "safe";
1848	our $safe_hole = new Safe::Hole;	3040	our $safe_hole = new Safe::Hole;
1849		3041
1850	$SIG{FPE} = 'IGNORE';	3042	$SIG{FPE} = 'IGNORE';
1851		3043
1852	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3044	$safe->permit_only (Opcode::opset qw(
		3045	:base_core :base_mem :base_orig :base_math
		3046	grepstart grepwhile mapstart mapwhile
		3047	sort time
		3048	));
1853		3049
1854	# here we export the classes and methods available to script code	3050	# here we export the classes and methods available to script code
1855		3051
1856	=pod	3052	=pod
1857		3053
1858	The following fucntions and emthods are available within a safe environment:	3054	The following functions and methods are available within a safe environment:
1859		3055
1860	cf::object contr pay_amount pay_player map	3056	cf::object
		3057	contr pay_amount pay_player map x y force_find force_add destroy
		3058	insert remove name archname title slaying race decrease split
		3059	value
		3060
1861	cf::object::player player	3061	cf::object::player
1862	cf::player peaceful	3062	player
1863	cf::map trigger	3063
		3064	cf::player
		3065	peaceful
		3066
		3067	cf::map
		3068	trigger
1864		3069
1865	=cut	3070	=cut
1866		3071
1867	for (	3072	for (
1868	["cf::object" => qw(contr pay_amount pay_player map)],	3073	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3074	insert remove inv nrof name archname title slaying race
		3075	decrease split destroy change_exp value msg lore send_msg)],
1869	["cf::object::player" => qw(player)],	3076	["cf::object::player" => qw(player)],
1870	["cf::player" => qw(peaceful)],	3077	["cf::player" => qw(peaceful send_msg)],
1871	["cf::map" => qw(trigger)],	3078	["cf::map" => qw(trigger)],
1872	) {	3079	) {
1873	no strict 'refs';	3080	no strict 'refs';
1874	my ($pkg, @funs) = @$_;	3081	my ($pkg, @funs) = @$_;
1875	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3082	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
1892	my ($code, %vars) = @_;	3099	my ($code, %vars) = @_;
1893		3100
1894	my $qcode = $code;	3101	my $qcode = $code;
1895	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3102	$qcode =~ s/"/‟/g; # not allowed in #line filenames
1896	$qcode =~ s/\n/\\n/g;	3103	$qcode =~ s/\n/\\n/g;
		3104
		3105	%vars = (_dummy => 0) unless %vars;
1897		3106
1898	local $_;	3107	local $_;
1899	local @safe::cf::_safe_eval_args = values %vars;	3108	local @safe::cf::_safe_eval_args = values %vars;
1900		3109
1901	my $eval =	3110	my $eval =
…		…
1944	=back	3153	=back
1945		3154
1946	=cut	3155	=cut
1947		3156
1948	#############################################################################	3157	#############################################################################
		3158	# the server's init and main functions
1949		3159
1950	=head2 EXTENSION DATABASE SUPPORT	3160	sub load_facedata($) {
		3161	my ($path) = @_;
1951		3162
1952	Crossfire maintains a very simple database for extension use. It can	3163	# HACK to clear player env face cache, we need some signal framework
1953	currently store anything that can be serialised using Storable, which	3164	# for this (global event?)
1954	excludes objects.	3165	%ext::player_env::MUSIC_FACE_CACHE = ();
1955		3166
1956	The parameter C<$family> should best start with the name of the extension	3167	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1957	using it, it should be unique.
1958		3168
1959	=over 4	3169	warn "loading facedata from $path\n";
1960		3170
1961	=item $hashref = cf::db_get $family	3171	my $facedata;
		3172	0 < aio_load $path, $facedata
		3173	or die "$path: $!";
1962		3174
1963	Return a hashref for use by the extension C<$family>, which can be	3175	$facedata = Coro::Storable::thaw $facedata;
1964	modified. After modifications, you have to call C<cf::db_dirty> or
1965	C<cf::db_sync>.
1966		3176
1967	=item $value = cf::db_get $family => $key	3177	$facedata->{version} == 2
		3178	or cf::cleanup "$path: version mismatch, cannot proceed.";
1968		3179
1969	Returns a single value from the database	3180	# patch in the exptable
1970		3181	$facedata->{resource}{"res/exp_table"} = {
1971	=item cf::db_put $family => $hashref	3182	type => FT_RSRC,
1972		3183	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1973	Stores the given family hashref into the database. Updates are delayed, if
1974	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1975
1976	=item cf::db_put $family => $key => $value
1977
1978	Stores the given C<$value> in the family hash. Updates are delayed, if you
1979	want the data to be synced to disk immediately, use C<cf::db_sync>.
1980
1981	=item cf::db_dirty
1982
1983	Marks the database as dirty, to be updated at a later time.
1984
1985	=item cf::db_sync
1986
1987	Immediately write the database to disk I<if it is dirty>.
1988
1989	=cut
1990
1991	our $DB;
1992
1993	{
1994	my $path = cf::localdir . "/database.pst";
1995
1996	sub db_load() {
1997	$DB = stat $path ? Storable::retrieve $path : { };
1998	}
1999
2000	my $pid;
2001
2002	sub db_save() {
2003	waitpid $pid, 0 if $pid;
2004	if (0 == ($pid = fork)) {
2005	$DB->{_meta}{version} = 1;
2006	Storable::nstore $DB, "$path~";
2007	rename "$path~", $path;
2008	cf::_exit 0 if defined $pid;
2009	}
2010	}
2011
2012	my $dirty;
2013
2014	sub db_sync() {
2015	db_save if $dirty;
2016	undef $dirty;
2017	}
2018
2019	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2020	db_sync;
2021	});	3184	};
		3185	cf::cede_to_tick;
2022		3186
2023	sub db_dirty() {
2024	$dirty = 1;
2025	$idle->start;
2026	}	3187	{
		3188	my $faces = $facedata->{faceinfo};
2027		3189
2028	sub db_get($;$) {	3190	while (my ($face, $info) = each %$faces) {
2029	@_ >= 2	3191	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2030	? $DB->{$_[0]}{$_[1]}
2031	: ($DB->{$_[0]} ||= { })
2032	}
2033		3192
2034	sub db_put($$;$) {	3193	cf::face::set_visibility $idx, $info->{visibility};
2035	if (@_ >= 3) {	3194	cf::face::set_magicmap $idx, $info->{magicmap};
2036	$DB->{$_[0]}{$_[1]} = $_[2];	3195	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2037	} else {	3196	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2038	$DB->{$_[0]} = $_[1];
2039	}
2040	db_dirty;
2041	}
2042		3197
2043	cf::global->attach (	3198	cf::cede_to_tick;
2044	prio => 10000,
2045	on_cleanup => sub {
2046	db_sync;
2047	},	3199	}
2048	);
2049	}
2050		3200
2051	#############################################################################	3201	while (my ($face, $info) = each %$faces) {
2052	# the server's main()	3202	next unless $info->{smooth};
2053		3203
2054	sub cfg_load {	3204	my $idx = cf::face::find $face
		3205	or next;
		3206
		3207	if (my $smooth = cf::face::find $info->{smooth}) {
		3208	cf::face::set_smooth $idx, $smooth;
		3209	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3210	} else {
		3211	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3212	}
		3213
		3214	cf::cede_to_tick;
		3215	}
		3216	}
		3217
		3218	{
		3219	my $anims = $facedata->{animinfo};
		3220
		3221	while (my ($anim, $info) = each %$anims) {
		3222	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3223	cf::cede_to_tick;
		3224	}
		3225
		3226	cf::anim::invalidate_all; # d'oh
		3227	}
		3228
		3229	{
		3230	# TODO: for gcfclient pleasure, we should give resources
		3231	# that gcfclient doesn't grok a >10000 face index.
		3232	my $res = $facedata->{resource};
		3233
		3234	while (my ($name, $info) = each %$res) {
		3235	if (defined $info->{type}) {
		3236	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3237	my $data;
		3238
		3239	if ($info->{type} & 1) {
		3240	# prepend meta info
		3241
		3242	my $meta = $enc->encode ({
		3243	name => $name,
		3244	%{ $info->{meta} || {} },
		3245	});
		3246
		3247	$data = pack "(w/a*)*", $meta, $info->{data};
		3248	} else {
		3249	$data = $info->{data};
		3250	}
		3251
		3252	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3253	cf::face::set_type $idx, $info->{type};
		3254	} else {
		3255	$RESOURCE{$name} = $info;
		3256	}
		3257
		3258	cf::cede_to_tick;
		3259	}
		3260	}
		3261
		3262	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3263
		3264	1
		3265	}
		3266
		3267	cf::global->attach (on_resource_update => sub {
		3268	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3269	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3270
		3271	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3272	my $sound = $soundconf->{compat}[$_]
		3273	or next;
		3274
		3275	my $face = cf::face::find "sound/$sound->[1]";
		3276	cf::sound::set $sound->[0] => $face;
		3277	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3278	}
		3279
		3280	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3281	my $face = cf::face::find "sound/$v";
		3282	cf::sound::set $k => $face;
		3283	}
		3284	}
		3285	});
		3286
		3287	register_exticmd fx_want => sub {
		3288	my ($ns, $want) = @_;
		3289
		3290	while (my ($k, $v) = each %$want) {
		3291	$ns->fx_want ($k, $v);
		3292	}
		3293	};
		3294
		3295	sub load_resource_file($) {
		3296	my $guard = lock_acquire "load_resource_file";
		3297
		3298	my $status = load_resource_file_ $_[0];
		3299	get_slot 0.1, 100;
		3300	cf::arch::commit_load;
		3301
		3302	$status
		3303	}
		3304
		3305	sub reload_regions {
		3306	# HACK to clear player env face cache, we need some signal framework
		3307	# for this (global event?)
		3308	%ext::player_env::MUSIC_FACE_CACHE = ();
		3309
		3310	load_resource_file "$MAPDIR/regions"
		3311	or die "unable to load regions file\n";
		3312
		3313	for (cf::region::list) {
		3314	$_->{match} = qr/$_->{match}/
		3315	if exists $_->{match};
		3316	}
		3317	}
		3318
		3319	sub reload_facedata {
		3320	load_facedata "$DATADIR/facedata"
		3321	or die "unable to load facedata\n";
		3322	}
		3323
		3324	sub reload_archetypes {
		3325	load_resource_file "$DATADIR/archetypes"
		3326	or die "unable to load archetypes\n";
		3327	}
		3328
		3329	sub reload_treasures {
		3330	load_resource_file "$DATADIR/treasures"
		3331	or die "unable to load treasurelists\n";
		3332	}
		3333
		3334	sub reload_resources {
		3335	warn "reloading resource files...\n";
		3336
		3337	reload_facedata;
		3338	reload_archetypes;
		3339	reload_regions;
		3340	reload_treasures;
		3341
		3342	warn "finished reloading resource files\n";
		3343	}
		3344
		3345	sub reload_config {
2055	open my $fh, "<:utf8", cf::confdir . "/config"	3346	open my $fh, "<:utf8", "$CONFDIR/config"
2056	or return;	3347	or return;
2057		3348
2058	local $/;	3349	local $/;
2059	*CFG = YAML::Syck::Load <$fh>;	3350	*CFG = YAML::Load <$fh>;
2060		3351
2061	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3352	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2062		3353
2063	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3354	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2064	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3355	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
2065		3356
2066	if (exists $CFG{mlockall}) {	3357	if (exists $CFG{mlockall}) {
2067	eval {	3358	eval {
2068	$CFG{mlockall} ? &mlockall : &munlockall	3359	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
2069	and die "WARNING: m(un)lockall failed: $!\n";	3360	and die "WARNING: m(un)lockall failed: $!\n";
2070	};	3361	};
2071	warn $@ if $@;	3362	warn $@ if $@;
2072	}	3363	}
2073	}	3364	}
2074		3365
		3366	sub pidfile() {
		3367	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3368	or die "$PIDFILE: $!";
		3369	flock $fh, &Fcntl::LOCK_EX
		3370	or die "$PIDFILE: flock: $!";
		3371	$fh
		3372	}
		3373
		3374	# make sure only one server instance is running at any one time
		3375	sub atomic {
		3376	my $fh = pidfile;
		3377
		3378	my $pid = <$fh>;
		3379	kill 9, $pid if $pid > 0;
		3380
		3381	seek $fh, 0, 0;
		3382	print $fh $$;
		3383	}
		3384
2075	sub main {	3385	sub main {
		3386	cf::init_globals; # initialise logging
		3387
		3388	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3389	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3390	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3391	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3392
		3393	cf::init_experience;
		3394	cf::init_anim;
		3395	cf::init_attackmess;
		3396	cf::init_dynamic;
		3397
		3398	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3399
2076	# we must not ever block the main coroutine	3400	# we must not ever block the main coroutine
2077	local $Coro::idle = sub {	3401	local $Coro::idle = sub {
2078	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3402	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2079	async { Event::one_event };	3403	(async {
		3404	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3405	EV::loop EV::LOOP_ONESHOT;
		3406	})->prio (Coro::PRIO_MAX);
2080	};	3407	};
2081		3408
2082	cfg_load;	3409	evthread_start IO::AIO::poll_fileno;
2083	db_load;	3410
		3411	cf::sync_job {
		3412	reload_resources;
		3413	reload_config;
		3414	db_init;
		3415
		3416	cf::load_settings;
		3417	cf::load_materials;
		3418	cf::init_uuid;
		3419	cf::init_signals;
		3420	cf::init_commands;
		3421	cf::init_skills;
		3422
		3423	cf::init_beforeplay;
		3424
		3425	atomic;
		3426
2084	load_extensions;	3427	load_extensions;
		3428
		3429	utime time, time, $RUNTIMEFILE;
		3430
		3431	# no (long-running) fork's whatsoever before this point(!)
		3432	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3433
		3434	(pop @POST_INIT)->(0) while @POST_INIT;
		3435	};
		3436
2085	Event::loop;	3437	EV::loop;
2086	}	3438	}
2087		3439
2088	#############################################################################	3440	#############################################################################
2089	# initialisation	3441	# initialisation and cleanup
2090		3442
		3443	# install some emergency cleanup handlers
		3444	BEGIN {
		3445	our %SIGWATCHER = ();
		3446	for my $signal (qw(INT HUP TERM)) {
		3447	$SIGWATCHER{$signal} = EV::signal $signal, sub {
		3448	cf::cleanup "SIG$signal";
		3449	};
		3450	}
		3451	}
		3452
		3453	sub write_runtime_sync {
		3454	# first touch the runtime file to show we are still running:
		3455	# the fsync below can take a very very long time.
		3456
		3457	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3458
		3459	my $guard = cf::lock_acquire "write_runtime";
		3460
		3461	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3462	or return;
		3463
		3464	my $value = $cf::RUNTIME + 90 + 10;
		3465	# 10 is the runtime save interval, for a monotonic clock
		3466	# 60 allows for the watchdog to kill the server.
		3467
		3468	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3469	and return;
		3470
		3471	# always fsync - this file is important
		3472	aio_fsync $fh
		3473	and return;
		3474
		3475	# touch it again to show we are up-to-date
		3476	aio_utime $fh, undef, undef;
		3477
		3478	close $fh
		3479	or return;
		3480
		3481	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3482	and return;
		3483
		3484	warn "runtime file written.\n";
		3485
		3486	1
		3487	}
		3488
		3489	our $uuid_lock;
		3490	our $uuid_skip;
		3491
		3492	sub write_uuid_sync($) {
		3493	$uuid_skip ||= $_[0];
		3494
		3495	return if $uuid_lock;
		3496	local $uuid_lock = 1;
		3497
		3498	my $uuid = "$LOCALDIR/uuid";
		3499
		3500	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3501	or return;
		3502
		3503	my $value = uuid_seq uuid_cur;
		3504
		3505	unless ($value) {
		3506	warn "cowardly refusing to write zero uuid value!\n";
		3507	return;
		3508	}
		3509
		3510	my $value = uuid_str $value + $uuid_skip;
		3511	$uuid_skip = 0;
		3512
		3513	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3514	and return;
		3515
		3516	# always fsync - this file is important
		3517	aio_fsync $fh
		3518	and return;
		3519
		3520	close $fh
		3521	or return;
		3522
		3523	aio_rename "$uuid~", $uuid
		3524	and return;
		3525
		3526	warn "uuid file written ($value).\n";
		3527
		3528	1
		3529
		3530	}
		3531
		3532	sub write_uuid($$) {
		3533	my ($skip, $sync) = @_;
		3534
		3535	$sync ? write_uuid_sync $skip
		3536	: async { write_uuid_sync $skip };
		3537	}
		3538
		3539	sub emergency_save() {
		3540	my $freeze_guard = cf::freeze_mainloop;
		3541
		3542	warn "emergency_perl_save: enter\n";
		3543
		3544	cf::sync_job {
		3545	# this is a trade-off: we want to be very quick here, so
		3546	# save all maps without fsync, and later call a global sync
		3547	# (which in turn might be very very slow)
		3548	local $USE_FSYNC = 0;
		3549
		3550	# use a peculiar iteration method to avoid tripping on perl
		3551	# refcount bugs in for. also avoids problems with players
		3552	# and maps saved/destroyed asynchronously.
		3553	warn "emergency_perl_save: begin player save\n";
		3554	for my $login (keys %cf::PLAYER) {
		3555	my $pl = $cf::PLAYER{$login} or next;
		3556	$pl->valid or next;
		3557	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3558	$pl->save;
		3559	}
		3560	warn "emergency_perl_save: end player save\n";
		3561
		3562	warn "emergency_perl_save: begin map save\n";
		3563	for my $path (keys %cf::MAP) {
		3564	my $map = $cf::MAP{$path} or next;
		3565	$map->valid or next;
		3566	$map->save;
		3567	}
		3568	warn "emergency_perl_save: end map save\n";
		3569
		3570	warn "emergency_perl_save: begin database checkpoint\n";
		3571	BDB::db_env_txn_checkpoint $DB_ENV;
		3572	warn "emergency_perl_save: end database checkpoint\n";
		3573
		3574	warn "emergency_perl_save: begin write uuid\n";
		3575	write_uuid_sync 1;
		3576	warn "emergency_perl_save: end write uuid\n";
		3577	};
		3578
		3579	warn "emergency_perl_save: starting sync()\n";
		3580	IO::AIO::aio_sync sub {
		3581	warn "emergency_perl_save: finished sync()\n";
		3582	};
		3583
		3584	warn "emergency_perl_save: leave\n";
		3585	}
		3586
		3587	sub post_cleanup {
		3588	my ($make_core) = @_;
		3589
		3590	warn Carp::longmess "post_cleanup backtrace"
		3591	if $make_core;
		3592
		3593	my $fh = pidfile;
		3594	unlink $PIDFILE if <$fh> == $$;
		3595	}
		3596
		3597	# a safer delete_package, copied from Symbol
		3598	sub clear_package($) {
		3599	my $pkg = shift;
		3600
		3601	# expand to full symbol table name if needed
		3602	unless ($pkg =~ /^main::.*::$/) {
		3603	$pkg = "main$pkg" if $pkg =~ /^::/;
		3604	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3605	$pkg .= '::' unless $pkg =~ /::$/;
		3606	}
		3607
		3608	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3609	my $stem_symtab = *{$stem}{HASH};
		3610
		3611	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3612	or return;
		3613
		3614	# clear all symbols
		3615	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3616	for my $name (keys %$leaf_symtab) {
		3617	_gv_clear *{"$pkg$name"};
		3618	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3619	}
		3620	warn "cleared package $pkg\n";#d#
		3621	}
		3622
2091	sub reload() {	3623	sub do_reload_perl() {
2092	# can/must only be called in main	3624	# can/must only be called in main
2093	if ($Coro::current != $Coro::main) {	3625	if ($Coro::current != $Coro::main) {
2094	warn "can only reload from main coroutine\n";	3626	warn "can only reload from main coroutine";
2095	return;	3627	return;
2096	}	3628	}
2097		3629
		3630	return if $RELOAD++;
		3631
		3632	my $t1 = EV::time;
		3633
		3634	while ($RELOAD) {
2098	warn "reloading...";	3635	warn "reloading...";
2099		3636
2100	my $guard = freeze_mainloop;	3637	warn "entering sync_job";
		3638
		3639	cf::sync_job {
		3640	cf::write_runtime_sync; # external watchdog should not bark
2101	cf::emergency_save;	3641	cf::emergency_save;
		3642	cf::write_runtime_sync; # external watchdog should not bark
2102		3643
2103	eval {	3644	warn "syncing database to disk";
		3645	BDB::db_env_txn_checkpoint $DB_ENV;
		3646
2104	# if anything goes wrong in here, we should simply crash as we already saved	3647	# if anything goes wrong in here, we should simply crash as we already saved
2105		3648
2106	# cancel all watchers	3649	warn "flushing outstanding aio requests";
2107	for (Event::all_watchers) {	3650	while (IO::AIO::nreqs || BDB::nreqs) {
2108	$_->cancel if $_->data & WF_AUTOCANCEL;	3651	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2109	}
2110
2111	# cancel all extension coros
2112	$_->cancel for values %EXT_CORO;
2113	%EXT_CORO = ();
2114
2115	# unload all extensions
2116	for (@exts) {
2117	warn "unloading <$_>";
2118	unload_extension $_;
2119	}
2120
2121	# unload all modules loaded from $LIBDIR
2122	while (my ($k, $v) = each %INC) {
2123	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2124
2125	warn "removing <$k>";
2126	delete $INC{$k};
2127
2128	$k =~ s/\.pm$//;
2129	$k =~ s/\//::/g;
2130
2131	if (my $cb = $k->can ("unload_module")) {
2132	$cb->();
2133	}	3652	}
2134		3653
2135	Symbol::delete_package $k;	3654	warn "cancelling all extension coros";
		3655	$_->cancel for values %EXT_CORO;
		3656	%EXT_CORO = ();
		3657
		3658	warn "removing commands";
		3659	%COMMAND = ();
		3660
		3661	warn "removing ext/exti commands";
		3662	%EXTCMD = ();
		3663	%EXTICMD = ();
		3664
		3665	warn "unloading/nuking all extensions";
		3666	for my $pkg (@EXTS) {
		3667	warn "... unloading $pkg";
		3668
		3669	if (my $cb = $pkg->can ("unload")) {
		3670	eval {
		3671	$cb->($pkg);
		3672	1
		3673	} or warn "$pkg unloaded, but with errors: $@";
		3674	}
		3675
		3676	warn "... clearing $pkg";
		3677	clear_package $pkg;
2136	}	3678	}
2137		3679
2138	# sync database to disk	3680	warn "unloading all perl modules loaded from $LIBDIR";
2139	cf::db_sync;	3681	while (my ($k, $v) = each %INC) {
2140	IO::AIO::flush;	3682	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2141		3683
		3684	warn "... unloading $k";
		3685	delete $INC{$k};
		3686
		3687	$k =~ s/\.pm$//;
		3688	$k =~ s/\//::/g;
		3689
		3690	if (my $cb = $k->can ("unload_module")) {
		3691	$cb->();
		3692	}
		3693
		3694	clear_package $k;
		3695	}
		3696
2142	# get rid of safe::, as good as possible	3697	warn "getting rid of safe::, as good as possible";
2143	Symbol::delete_package "safe::$_"	3698	clear_package "safe::$_"
2144	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3699	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2145		3700
2146	# remove register_script_function callbacks	3701	warn "unloading cf.pm \"a bit\"";
2147	# TODO
2148
2149	# unload cf.pm "a bit"
2150	delete $INC{"cf.pm"};	3702	delete $INC{"cf.pm"};
		3703	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2151		3704
2152	# don't, removes xs symbols, too,	3705	# don't, removes xs symbols, too,
2153	# and global variables created in xs	3706	# and global variables created in xs
2154	#Symbol::delete_package __PACKAGE__;	3707	#clear_package __PACKAGE__;
2155		3708
2156	# reload cf.pm	3709	warn "unload completed, starting to reload now";
		3710
2157	warn "reloading cf.pm";	3711	warn "reloading cf.pm";
2158	require cf;	3712	require cf;
2159	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3713	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2160		3714
2161	# load config and database again	3715	warn "loading config and database again";
2162	cf::cfg_load;	3716	cf::reload_config;
2163	cf::db_load;
2164		3717
2165	# load extensions
2166	warn "load extensions";	3718	warn "loading extensions";
2167	cf::load_extensions;	3719	cf::load_extensions;
2168		3720
2169	# reattach attachments to objects	3721	if ($REATTACH_ON_RELOAD) {
		3722	warn "reattaching attachments to objects/players";
		3723	_global_reattach; # objects, sockets
		3724	warn "reattaching attachments to maps";
		3725	reattach $_ for values %MAP;
		3726	warn "reattaching attachments to players";
		3727	reattach $_ for values %PLAYER;
		3728	}
		3729
		3730	warn "running post_init jobs";
		3731	(pop @POST_INIT)->(1) while @POST_INIT;
		3732
		3733	warn "leaving sync_job";
		3734
		3735	1
		3736	} or do {
		3737	warn $@;
		3738	cf::cleanup "error while reloading, exiting.";
		3739	};
		3740
2170	warn "reattach";	3741	warn "reloaded";
2171	_global_reattach;	3742	--$RELOAD;
		3743	}
		3744
		3745	$t1 = EV::time - $t1;
		3746	warn "reload completed in ${t1}s\n";
		3747	};
		3748
		3749	our $RELOAD_WATCHER; # used only during reload
		3750
		3751	sub reload_perl() {
		3752	# doing reload synchronously and two reloads happen back-to-back,
		3753	# coro crashes during coro_state_free->destroy here.
		3754
		3755	$RELOAD_WATCHER ||= cf::async {
		3756	Coro::AIO::aio_wait cache_extensions;
		3757
		3758	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3759	do_reload_perl;
		3760	undef $RELOAD_WATCHER;
		3761	};
2172	};	3762	};
2173
2174	if ($@) {
2175	warn $@;
2176	warn "error while reloading, exiting.";
2177	exit 1;
2178	}
2179
2180	warn "reloaded successfully";
2181	};
2182
2183	#############################################################################
2184
2185	unless ($LINK_MAP) {
2186	$LINK_MAP = cf::map::new;
2187
2188	$LINK_MAP->width (41);
2189	$LINK_MAP->height (41);
2190	$LINK_MAP->alloc;
2191	$LINK_MAP->path ("{link}");
2192	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2193	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2194
2195	# dirty hack because... archetypes are not yet loaded
2196	Event->timer (
2197	after => 10,
2198	cb => sub {
2199	$_[0]->w->cancel;
2200
2201	# provide some exits "home"
2202	my $exit = cf::object::new "exit";
2203
2204	$exit->slaying ($EMERGENCY_POSITION->[0]);
2205	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2206	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2207
2208	$LINK_MAP->insert ($exit->clone, 19, 19);
2209	$LINK_MAP->insert ($exit->clone, 19, 20);
2210	$LINK_MAP->insert ($exit->clone, 19, 21);
2211	$LINK_MAP->insert ($exit->clone, 20, 19);
2212	$LINK_MAP->insert ($exit->clone, 20, 21);
2213	$LINK_MAP->insert ($exit->clone, 21, 19);
2214	$LINK_MAP->insert ($exit->clone, 21, 20);
2215	$LINK_MAP->insert ($exit->clone, 21, 21);
2216
2217	$exit->destroy;
2218	});
2219
2220	$LINK_MAP->{deny_save} = 1;
2221	$LINK_MAP->{deny_reset} = 1;
2222
2223	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2224	}	3763	}
2225
2226	register "<global>", __PACKAGE__;
2227		3764
2228	register_command "reload" => sub {	3765	register_command "reload" => sub {
2229	my ($who, $arg) = @_;	3766	my ($who, $arg) = @_;
2230		3767
2231	if ($who->flag (FLAG_WIZ)) {	3768	if ($who->flag (FLAG_WIZ)) {
2232	$who->message ("start of reload.");
2233	reload;
2234	$who->message ("end of reload.");	3769	$who->message ("reloading server.");
		3770	async {
		3771	$Coro::current->{desc} = "perl_reload";
		3772	reload_perl;
		3773	};
2235	}	3774	}
2236	};	3775	};
2237		3776
2238	unshift @INC, $LIBDIR;	3777	unshift @INC, $LIBDIR;
2239		3778
2240	$TICK_WATCHER = Event->timer (	3779	my $bug_warning = 0;
2241	reentrant => 0,	3780
2242	prio => 0,	3781	our @WAIT_FOR_TICK;
2243	at => $NEXT_TICK || $TICK,	3782	our @WAIT_FOR_TICK_BEGIN;
2244	data => WF_AUTOCANCEL,	3783
2245	cb => sub {	3784	sub wait_for_tick {
		3785	return if tick_inhibit || $Coro::current == $Coro::main;
		3786
		3787	my $signal = new Coro::Signal;
		3788	push @WAIT_FOR_TICK, $signal;
		3789	$signal->wait;
		3790	}
		3791
		3792	sub wait_for_tick_begin {
		3793	return if tick_inhibit || $Coro::current == $Coro::main;
		3794
		3795	my $signal = new Coro::Signal;
		3796	push @WAIT_FOR_TICK_BEGIN, $signal;
		3797	$signal->wait;
		3798	}
		3799
		3800	sub tick {
		3801	if ($Coro::current != $Coro::main) {
		3802	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3803	unless ++$bug_warning > 10;
		3804	return;
		3805	}
		3806
2246	cf::server_tick; # one server iteration	3807	cf::server_tick; # one server iteration
2247	$RUNTIME += $TICK;
2248	$NEXT_TICK += $TICK;
2249		3808
2250	# if we are delayed by four ticks or more, skip them all	3809	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2251	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3810	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2252		3811	Coro::async_pool {
2253	$TICK_WATCHER->at ($NEXT_TICK);	3812	$Coro::current->{desc} = "runtime saver";
2254	$TICK_WATCHER->start;
2255	},
2256	);
2257
2258	IO::AIO::max_poll_time $TICK * 0.2;
2259
2260	Event->io (
2261	fd => IO::AIO::poll_fileno,
2262	poll => 'r',
2263	prio => 5,
2264	data => WF_AUTOCANCEL,
2265	cb => \&IO::AIO::poll_cb,
2266	);
2267
2268	Event->timer (
2269	data => WF_AUTOCANCEL,
2270	after => 0,
2271	interval => 10,
2272	cb => sub {
2273	(Coro::unblock_sub {
2274	write_runtime	3813	write_runtime_sync
2275	or warn "ERROR: unable to write runtime file: $!";	3814	or warn "ERROR: unable to write runtime file: $!";
2276	})->();	3815	};
2277	},	3816	}
2278	);	3817
		3818	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3819	$sig->send;
		3820	}
		3821	while (my $sig = shift @WAIT_FOR_TICK) {
		3822	$sig->send;
		3823	}
		3824
		3825	$LOAD = ($NOW - $TICK_START) / $TICK;
		3826	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3827
		3828	if (0) {
		3829	if ($NEXT_TICK) {
		3830	my $jitter = $TICK_START - $NEXT_TICK;
		3831	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3832	warn "jitter $JITTER\n";#d#
		3833	}
		3834	}
		3835	}
		3836
		3837	{
		3838	# configure BDB
		3839
		3840	BDB::min_parallel 8;
		3841	BDB::max_poll_reqs $TICK * 0.1;
		3842	$AnyEvent::BDB::WATCHER->priority (1);
		3843
		3844	unless ($DB_ENV) {
		3845	$DB_ENV = BDB::db_env_create;
		3846	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3847	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3848	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3849	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3850	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3851
		3852	cf::sync_job {
		3853	eval {
		3854	BDB::db_env_open
		3855	$DB_ENV,
		3856	$BDBDIR,
		3857	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3858	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3859	0666;
		3860
		3861	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3862	};
		3863
		3864	cf::cleanup "db_env_open(db): $@" if $@;
		3865	};
		3866	}
		3867
		3868	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3869	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3870	};
		3871	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3872	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3873	};
		3874	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3875	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3876	};
		3877	}
		3878
		3879	{
		3880	# configure IO::AIO
		3881
		3882	IO::AIO::min_parallel 8;
		3883	IO::AIO::max_poll_time $TICK * 0.1;
		3884	undef $AnyEvent::AIO::WATCHER;
		3885	}
		3886
		3887	my $_log_backtrace;
		3888
		3889	sub _log_backtrace {
		3890	my ($msg, @addr) = @_;
		3891
		3892	$msg =~ s/\n//;
		3893
		3894	# limit the # of concurrent backtraces
		3895	if ($_log_backtrace < 2) {
		3896	++$_log_backtrace;
		3897	my $perl_bt = Carp::longmess $msg;
		3898	async {
		3899	$Coro::current->{desc} = "abt $msg";
		3900
		3901	my @bt = fork_call {
		3902	@addr = map { sprintf "%x", $_ } @addr;
		3903	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3904	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3905	or die "addr2line: $!";
		3906
		3907	my @funcs;
		3908	my @res = <$fh>;
		3909	chomp for @res;
		3910	while (@res) {
		3911	my ($func, $line) = splice @res, 0, 2, ();
		3912	push @funcs, "[$func] $line";
		3913	}
		3914
		3915	@funcs
		3916	};
		3917
		3918	LOG llevInfo, "[ABT] $perl_bt\n";
		3919	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3920	LOG llevInfo, "[ABT] $_\n" for @bt;
		3921	--$_log_backtrace;
		3922	};
		3923	} else {
		3924	LOG llevInfo, "[ABT] $msg\n";
		3925	LOG llevInfo, "[ABT] [suppressed]\n";
		3926	}
		3927	}
		3928
		3929	# load additional modules
		3930	eval "use cf::$_" for @EXTRA_MODULES;
2279		3931
2280	END { cf::emergency_save }	3932	END { cf::emergency_save }
2281		3933
2282	1	3934	1
2283		3935

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