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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.169 by root, Sun Jan 14 01:09:46 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 ();
20	use Data::Dumper;	55	use Data::Dumper;
21	use Digest::MD5;	56	use Digest::MD5;
22	use Fcntl;	57	use Fcntl;
		58	use YAML ();
23	use IO::AIO 2.32 ();	59	use IO::AIO ();
24	use YAML::Syck ();
25	use Time::HiRes;	60	use Time::HiRes;
		61	use Compress::LZF;
		62	use Digest::MD5 ();
26		63
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	64	AnyEvent::detect;
		65
		66	# configure various modules to our taste
		67	#
		68	$Storable::canonical = 1; # reduce rsync transfers
		69	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		70
		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
28		76
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	77	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		78
36	our %COMMAND = ();	79	our %COMMAND = ();
37	our %COMMAND_TIME = ();	80	our %COMMAND_TIME = ();
38		81
39	our @EXTS = (); # list of extension package names	82	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	83	our %EXTCMD = ();
		84	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	85	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	86	our %EXT_MAP = (); # pluggable maps
43		87
		88	our $RELOAD; # number of reloads so far, non-zero while in reload
44	our @EVENT;	89	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		90
47	our $TICK = MAX_TIME * 1e-6;	91	our $CONFDIR = confdir;
48	our $TICK_WATCHER;	92	our $DATADIR = datadir;
49	our $AIO_POLL_WATCHER;	93	our $LIBDIR = "$DATADIR/ext";
50	our $WRITE_RUNTIME_WATCHER;	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
51	our $NEXT_TICK;	109	our $NEXT_TICK;
52	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);
53		118
54	our %CFG;	119	our %CFG;
55		120
56	our $UPTIME; $UPTIME ||= time;	121	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	122	our $RUNTIME;
		123	our $NOW;
58		124
59	our %PLAYER; # all users	125	our (%PLAYER, %PLAYER_LOADING); # all users
60	our %MAP; # all maps	126	our (%MAP, %MAP_LOADING ); # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	127	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		128
67	# used to convert map paths into valid unix filenames by replacing / by ∕	129	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	130	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		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 $REATTACH_ON_RELOAD; # ste to true to force object reattach on reload (slow)
		140
70	binmode STDOUT;	141	binmode STDOUT;
71	binmode STDERR;	142	binmode STDERR;
72		143
73	# read virtual server time, if available	144	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	145	unless ($RUNTIME || !-e $RUNTIMEFILE) {
75	open my $fh, "<", cf::localdir . "/runtime"	146	open my $fh, "<", $RUNTIMEFILE
76	or die "unable to read runtime file: $!";	147	or die "unable to read $RUNTIMEFILE file: $!";
77	$RUNTIME = <$fh> + 0.;	148	$RUNTIME = <$fh> + 0.;
78	}	149	}
79		150
80	mkdir cf::localdir;	151	mkdir $_
81	mkdir cf::localdir . "/" . cf::playerdir;	152	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir cf::localdir . "/" . cf::tmpdir;
83	mkdir cf::localdir . "/" . cf::uniquedir;
84	mkdir $RANDOM_MAPS;
85		153
86	our $EMERGENCY_POSITION;	154	our $EMERGENCY_POSITION;
		155
		156	sub cf::map::normalise;
87		157
88	#############################################################################	158	#############################################################################
89		159
90	=head2 GLOBAL VARIABLES	160	=head2 GLOBAL VARIABLES
91		161
…		…
98	=item $cf::RUNTIME	168	=item $cf::RUNTIME
99		169
100	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
101	every server tick.	171	every server tick.
102		172
103	=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
104		176
105	The perl library directory, where extensions and cf-specific modules can	177	Various directories - "/etc", read-only install directory, perl-library
106	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.
107		181
108	=item $cf::NOW	182	=item $cf::NOW
109		183
110	The time of the last (current) server tick.	184	The time of the last (current) server tick.
111		185
112	=item $cf::TICK	186	=item $cf::TICK
113		187
114	The interval between server ticks, in seconds.	188	The interval between server ticks, in seconds.
115		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
116	=item %cf::CFG	200	=item %cf::CFG
117		201
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	202	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
119	from wherever your confdir points to.	203	from wherever your confdir points to.
120		204
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	205	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		206
123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	207	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
124	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	208	returns directly I<after> the tick processing (and consequently, can only wake one process
125	processing has been done. Call C<< ->wait >> on them to maximise the	209	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
126	window of cpu time available, or simply to synchronise to the server tick.	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.
127		216
128	=back	217	=back
129		218
130	=cut	219	=cut
131		220
132	BEGIN {	221	BEGIN {
133	*CORE::GLOBAL::warn = sub {	222	*CORE::GLOBAL::warn = sub {
134	my $msg = join "", @_;	223	my $msg = join "", @_;
135	utf8::encode $msg;
136		224
137	$msg .= "\n"	225	$msg .= "\n"
138	unless $msg =~ /\n$/;	226	unless $msg =~ /\n$/;
139		227
		228	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		229
140	LOG llevError, $msg;	230	LOG llevError, $msg;
141	};	231	};
142	}	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#?
143		248
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	249	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	250	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	251	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	252	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@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';
149	@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)
150		256
151	# 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
152	# within the Safe compartment.	258	# within the Safe compartment.
153	for my $pkg (qw(	259	for my $pkg (qw(
154	cf::global cf::attachable	260	cf::global cf::attachable
155	cf::object cf::object::player	261	cf::object cf::object::player
156	cf::client cf::player	262	cf::client cf::player
157	cf::arch cf::living	263	cf::arch cf::living
		264	cf::map cf::mapspace
158	cf::map cf::party cf::region	265	cf::party cf::region
159	)) {	266	)) {
160	no strict 'refs';
161	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	267	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
162	}	268	}
163		269
164	$Event::DIED = sub {	270	$EV::DIED = sub {
165	warn "error in event callback: @_";	271	warn "error in event callback: @_";
166	};	272	};
		273
		274	#############################################################################
167		275
168	=head2 UTILITY FUNCTIONS	276	=head2 UTILITY FUNCTIONS
169		277
170	=over 4	278	=over 4
171		279
…		…
190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	298	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
191	$d	299	$d
192	} || "[unable to dump $_[0]: '$@']";	300	} || "[unable to dump $_[0]: '$@']";
193	}	301	}
194		302
195	use JSON::Syck (); # TODO# replace by JSON::PC once working
196
197	=item $ref = cf::from_json $json	303	=item $ref = cf::decode_json $json
198		304
199	Converts a JSON string into the corresponding perl data structure.	305	Converts a JSON string into the corresponding perl data structure.
200		306
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	307	=item $json = cf::encode_json $ref
209		308
210	Converts a perl data structure into its JSON representation.	309	Converts a perl data structure into its JSON representation.
211		310
212	=cut	311	=cut
213		312
214	sub to_json($) {	313	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	314
216	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;
217	}	330	}
218		331
219	=item cf::lock_wait $string	332	=item cf::lock_wait $string
220		333
221	Wait until the given lock is available. See cf::lock_acquire.	334	Wait until the given lock is available. See cf::lock_acquire.
222		335
223	=item my $lock = cf::lock_acquire $string	336	=item my $lock = cf::lock_acquire $string
224		337
225	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
226	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,
227	for example when the coroutine gets canceled), the lock is automatically	340	for example when the coroutine gets canceled), the lock is automatically
228	returned.	341	returned.
229		342
		343	Locks are *not* recursive, locking from the same coro twice results in a
		344	deadlocked coro.
		345
230	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
231	uses map_find and cf::map::load uses map_load).	347	uses map_find and cf::map::load uses map_load).
232		348
233	=cut	349	=item $locked = cf::lock_active $string
234		350
235	our %LOCK;	351	Return true if the lock is currently active, i.e. somebody has locked it.
		352
		353	=cut
		354
		355	our $LOCKS = new Coro::SemaphoreSet;
236		356
237	sub lock_wait($) {	357	sub lock_wait($) {
238	my ($key) = @_;	358	$LOCKS->wait ($_[0]);
239
240	# wait for lock, if any
241	while ($LOCK{$key}) {
242	push @{ $LOCK{$key} }, $Coro::current;
243	Coro::schedule;
244	}
245	}	359	}
246		360
247	sub lock_acquire($) {	361	sub lock_acquire($) {
248	my ($key) = @_;	362	$LOCKS->guard ($_[0])
		363	}
249		364
250	# wait, to be sure we are not locked	365	sub lock_active($) {
251	lock_wait $key;	366	$LOCKS->count ($_[0]) < 1
252
253	$LOCK{$key} = [];
254
255	Coro::guard {
256	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };
258	}
259	}	367	}
260		368
261	sub freeze_mainloop {	369	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	370	tick_inhibit_inc;
263		371
264	my $guard = Coro::guard {	372	&Guard::guard (\&tick_inhibit_dec);
265	$TICK_WATCHER->start;	373	}
266	$WRITE_RUNTIME_WATCHER->start;	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($$) {
		383	my ($interval, $cb) = @_;
		384
		385	my $start = rand List::Util::min 180, $interval;
		386
		387	EV::periodic $start, $interval, 0, $cb
		388	}
		389
		390	=item cf::get_slot $time[, $priority[, $name]]
		391
		392	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		393	This call blocks and returns only when you have at least C<$time> seconds
		394	of cpu time till the next tick. The slot is only valid till the next cede.
		395
		396	The optional C<$name> can be used to identify the job to run. It might be
		397	used for statistical purposes and should identify the same time-class.
		398
		399	Useful for short background jobs.
		400
		401	=cut
		402
		403	our @SLOT_QUEUE;
		404	our $SLOT_QUEUE;
		405
		406	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		407	$SLOT_QUEUE = Coro::async {
		408	$Coro::current->desc ("timeslot manager");
		409
		410	my $signal = new Coro::Signal;
		411
		412	while () {
		413	next_job:
		414	my $avail = cf::till_tick;
		415	if ($avail > 0.01) {
		416	for (0 .. $#SLOT_QUEUE) {
		417	if ($SLOT_QUEUE[$_][0] < $avail) {
		418	my $job = splice @SLOT_QUEUE, $_, 1, ();
		419	$job->[2]->send;
		420	Coro::cede;
		421	goto next_job;
		422	}
		423	}
		424	}
		425
		426	if (@SLOT_QUEUE) {
		427	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		428	push @cf::WAIT_FOR_TICK, $signal;
		429	$signal->wait;
		430	} else {
		431	Coro::schedule;
		432	}
267	};	433	}
268	$WRITE_RUNTIME_WATCHER->stop;	434	};
269	$TICK_WATCHER->stop;	435
270	$guard	436	sub get_slot($;$$) {
		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	$sig->wait;
271	}	448	}
272		449
273	=item cf::async { BLOCK }	450	=item cf::async { BLOCK }
274		451
275	Currently the same as Coro::async_pool, meaning you cannot use	452	Currently the same as Coro::async_pool, meaning you cannot use
…		…
280		457
281	BEGIN { *async = \&Coro::async_pool }	458	BEGIN { *async = \&Coro::async_pool }
282		459
283	=item cf::sync_job { BLOCK }	460	=item cf::sync_job { BLOCK }
284		461
285	The design of crossfire+ requires that the main coro ($Coro::main) is	462	The design of Deliantra requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	463	is always able to handle events or runnable, as Deliantra is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	464	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		465	acceptable.
288		466
289	If it must be done, put the blocking parts into C<sync_job>. This will run	467	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	468	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	469	server will be frozen during this time, so the block should either finish
292	fast or be very important.	470	fast or be very important.
…		…
295		473
296	sub sync_job(&) {	474	sub sync_job(&) {
297	my ($job) = @_;	475	my ($job) = @_;
298		476
299	if ($Coro::current == $Coro::main) {	477	if ($Coro::current == $Coro::main) {
		478	my $time = EV::time;
		479
300	# this is the main coro, too bad, we have to block	480	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	481	# till the operation succeeds, freezing the server :/
302		482
303	# TODO: use suspend/resume instead	483	LOG llevError, Carp::longmess "sync job";#d#
304	# (but this is cancel-safe)	484
305	my $freeze_guard = freeze_mainloop;	485	my $freeze_guard = freeze_mainloop;
306		486
307	my $busy = 1;	487	my $busy = 1;
308	my @res;	488	my @res;
309		489
310	(async {	490	(async {
		491	$Coro::current->desc ("sync job coro");
311	@res = eval { $job->() };	492	@res = eval { $job->() };
312	warn $@ if $@;	493	warn $@ if $@;
313	undef $busy;	494	undef $busy;
314	})->prio (Coro::PRIO_MAX);	495	})->prio (Coro::PRIO_MAX);
315		496
316	while ($busy) {	497	while ($busy) {
317	Coro::cede or Event::one_event;	498	if (Coro::nready) {
		499	Coro::cede_notself;
		500	} else {
		501	EV::loop EV::LOOP_ONESHOT;
318	}	502	}
		503	}
		504
		505	my $time = EV::time - $time;
		506
		507	$TICK_START += $time; # do not account sync jobs to server load
319		508
320	wantarray ? @res : $res[0]	509	wantarray ? @res : $res[0]
321	} else {	510	} else {
322	# we are in another coroutine, how wonderful, everything just works	511	# we are in another coroutine, how wonderful, everything just works
323		512
…		…
343	$EXT_CORO{$coro+0} = $coro;	532	$EXT_CORO{$coro+0} = $coro;
344		533
345	$coro	534	$coro
346	}	535	}
347		536
348	sub write_runtime {	537	=item fork_call { }, $args
349	my $runtime = cf::localdir . "/runtime";
350		538
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	539	Executes the given code block with the given arguments in a seperate
352	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.
353		543
354	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	544	=cut
355	(aio_write $fh, 0, (length $value), $value, 0) <= 0
356	and return;
357		545
358	aio_fsync $fh	546	sub fork_call(&@) {
359	and return;	547	my ($cb, @args) = @_;
360		548
361	close $fh	549	# we seemingly have to make a local copy of the whole thing,
362	or return;	550	# otherwise perl prematurely frees the stuff :/
		551	# TODO: investigate and fix (likely this will be rather laborious)
363		552
364	aio_rename "$runtime~", $runtime	553	my @res = Coro::Util::fork_eval {
365	and return;	554	reset_signals;
		555	&$cb
		556	}, @args;
366		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($$) {
		630	my $key = "$_[0]/$_[1]";
		631
		632	cf::sync_job {
		633	BDB::db_get $DB, undef, $key, my $data;
		634
		635	$! ? ()
		636	: $data
367	1	637	}
		638	}
		639
		640	sub db_put($$$) {
		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 });
368	}	724	}
369		725
370	=back	726	=back
371		727
372	=cut	728	=cut
373		729
374	#############################################################################	730	#############################################################################
375		731
376	=head2 ATTACHABLE OBJECTS	732	=head2 ATTACHABLE OBJECTS
377		733
378	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
379	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")
380	to it. All such attachable objects support the following methods.	736	to it. All such attachable objects support the following methods.
381		737
382	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>
383	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
384	crossfire+).	740	Deliantra).
385		741
386	=over 4	742	=over 4
387		743
388	=item $attachable->attach ($attachment, key => $value...)	744	=item $attachable->attach ($attachment, key => $value...)
389		745
…		…
433	=item cf::CLASS::attachment $name, ...	789	=item cf::CLASS::attachment $name, ...
434		790
435	Register an attachment by C<$name> through which attachable objects of the	791	Register an attachment by C<$name> through which attachable objects of the
436	given CLASS can refer to this attachment.	792	given CLASS can refer to this attachment.
437		793
438	Some classes such as crossfire maps and objects can specify attachments	794	Some classes such as deliantra maps and objects can specify attachments
439	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.
440		796
441	These calls expect any number of the following handler/hook descriptions:	797	These calls expect any number of the following handler/hook descriptions:
442		798
443	=over 4	799	=over 4
…		…
503	our @CB_TYPE = (); # registry for type (cf-object class) based events	859	our @CB_TYPE = (); # registry for type (cf-object class) based events
504	our @CB_MAP = ();	860	our @CB_MAP = ();
505		861
506	my %attachment;	862	my %attachment;
507		863
		864	sub cf::attachable::thawer_merge {
		865	# simply override everything except _meta
		866	local $_[0]{_meta};
		867	%{$_[0]} = %{$_[1]};
		868	}
		869
508	sub _attach_cb($$$$) {	870	sub _attach_cb($$$$) {
509	my ($registry, $event, $prio, $cb) = @_;	871	my ($registry, $event, $prio, $cb) = @_;
510		872
511	use sort 'stable';	873	use sort 'stable';
512		874
…		…
546	$registry = $CB_TYPE[$object_type] ||= [];	908	$registry = $CB_TYPE[$object_type] ||= [];
547		909
548	} elsif ($type eq "subtype") {	910	} elsif ($type eq "subtype") {
549	defined $object_type or Carp::croak "subtype specified without type";	911	defined $object_type or Carp::croak "subtype specified without type";
550	my $object_subtype = shift @arg;	912	my $object_subtype = shift @arg;
551	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	913	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
552		914
553	} elsif ($type eq "package") {	915	} elsif ($type eq "package") {
554	my $pkg = shift @arg;	916	my $pkg = shift @arg;
555		917
556	while (my ($name, $id) = each %cb_id) {	918	while (my ($name, $id) = each %cb_id) {
…		…
585	_attach $registry, $klass, @attach;	947	_attach $registry, $klass, @attach;
586	}	948	}
587		949
588	$obj->{$name} = \%arg;	950	$obj->{$name} = \%arg;
589	} else {	951	} else {
590	warn "object uses attachment '$name' that is not available, postponing.\n";	952	warn "object uses attachment '$name' which is not available, postponing.\n";
591	}	953	}
592		954
593	$obj->{_attachment}{$name} = undef;	955	$obj->{_attachment}{$name} = undef;
594	}	956	}
595		957
…		…
597	if (ref $_[0]) {	959	if (ref $_[0]) {
598	_object_attach @_;	960	_object_attach @_;
599	} else {	961	} else {
600	_attach shift->_attach_registry, @_;	962	_attach shift->_attach_registry, @_;
601	}	963	}
		964	_recalc_want;
602	};	965	};
603		966
604	# all those should be optimised	967	# all those should be optimised
605	sub cf::attachable::detach {	968	sub cf::attachable::detach {
606	my ($obj, $name) = @_;	969	my ($obj, $name) = @_;
…		…
609	delete $obj->{_attachment}{$name};	972	delete $obj->{_attachment}{$name};
610	reattach ($obj);	973	reattach ($obj);
611	} else {	974	} else {
612	Carp::croak "cannot, currently, detach class attachments";	975	Carp::croak "cannot, currently, detach class attachments";
613	}	976	}
		977	_recalc_want;
614	};	978	};
615		979
616	sub cf::attachable::attached {	980	sub cf::attachable::attached {
617	my ($obj, $name) = @_;	981	my ($obj, $name) = @_;
618		982
…		…
633	";	997	";
634	die if $@;	998	die if $@;
635	}	999	}
636		1000
637	our $override;	1001	our $override;
638	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?
639		1003
640	sub override {	1004	sub override {
641	$override = 1;	1005	$override = 1;
642	@invoke_results = ();	1006	@INVOKE_RESULTS = (@_);
643	}	1007	}
644		1008
645	sub do_invoke {	1009	sub do_invoke {
646	my $event = shift;	1010	my $event = shift;
647	my $callbacks = shift;	1011	my $callbacks = shift;
648		1012
649	@invoke_results = ();	1013	@INVOKE_RESULTS = ();
650		1014
651	local $override;	1015	local $override;
652		1016
653	for (@$callbacks) {	1017	for (@$callbacks) {
654	eval { &{$_->[1]} };	1018	eval { &{$_->[1]} };
…		…
663	}	1027	}
664		1028
665	0	1029	0
666	}	1030	}
667		1031
668	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1032	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
669		1033
670	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1034	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
671		1035
672	Generate an object-specific event with the given arguments.	1036	Generate an object-specific event with the given arguments.
673		1037
674	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
675	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
676	results (if you must, access C<@cf::invoke_results> directly).	1040	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
677		1041
678	=back	1042	=back
679		1043
680	=cut	1044	=cut
681		1045
682	#############################################################################	1046	#############################################################################
683	# 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	}
684		1090
685	sub reattach {	1091	sub reattach {
686	# basically do the same as instantiate, without calling instantiate	1092	# basically do the same as instantiate, without calling instantiate
687	my ($obj) = @_;	1093	my ($obj) = @_;
688		1094
		1095	# no longer needed after getting rid of delete_package?
689	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1096	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
690		1097
691	my $registry = $obj->registry;	1098	my $registry = $obj->registry;
692		1099
693	@$registry = ();	1100	@$registry = ();
694		1101
…		…
709	cf::attachable->attach (	1116	cf::attachable->attach (
710	prio => -1000000,	1117	prio => -1000000,
711	on_instantiate => sub {	1118	on_instantiate => sub {
712	my ($obj, $data) = @_;	1119	my ($obj, $data) = @_;
713		1120
714	$data = from_json $data;	1121	$data = decode_json $data;
715		1122
716	for (@$data) {	1123	for (@$data) {
717	my ($name, $args) = @$_;	1124	my ($name, $args) = @$_;
718		1125
719	$obj->attach ($name, %{$args || {} });	1126	$obj->attach ($name, %{$args || {} });
…		…
735	sub object_freezer_save {	1142	sub object_freezer_save {
736	my ($filename, $rdata, $objs) = @_;	1143	my ($filename, $rdata, $objs) = @_;
737		1144
738	sync_job {	1145	sync_job {
739	if (length $$rdata) {	1146	if (length $$rdata) {
		1147	utf8::decode (my $decname = $filename);
740	warn sprintf "saving %s (%d,%d)\n",	1148	warn sprintf "saving %s (%d,%d)\n",
741	$filename, length $$rdata, scalar @$objs;	1149	$decname, length $$rdata, scalar @$objs;
742		1150
743	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1151	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
744	chmod SAVE_MODE, $fh;	1152	aio_chmod $fh, SAVE_MODE;
745	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1153	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
746	aio_fsync $fh;	1154	aio_fsync $fh if $cf::USE_FSYNC;
747	close $fh;	1155	aio_close $fh;
748		1156
749	if (@$objs) {	1157	if (@$objs) {
750	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) {
751	chmod SAVE_MODE, $fh;	1159	aio_chmod $fh, SAVE_MODE;
752	my $data = Storable::nfreeze { version => 1, objs => $objs };	1160	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
753	aio_write $fh, 0, (length $data), $data, 0;	1161	aio_write $fh, 0, (length $data), $data, 0;
754	aio_fsync $fh;	1162	aio_fsync $fh if $cf::USE_FSYNC;
755	close $fh;	1163	aio_close $fh;
756	aio_rename "$filename.pst~", "$filename.pst";	1164	aio_rename "$filename.pst~", "$filename.pst";
757	}	1165	}
758	} else {	1166	} else {
759	aio_unlink "$filename.pst";	1167	aio_unlink "$filename.pst";
760	}	1168	}
761		1169
762	aio_rename "$filename~", $filename;	1170	aio_rename "$filename~", $filename;
		1171
		1172	$filename =~ s%/[^/]+$%%;
		1173	aio_pathsync $filename if $cf::USE_FSYNC;
763	} else {	1174	} else {
764	warn "FATAL: $filename~: $!\n";	1175	warn "unable to save objects: $filename~: $!\n";
765	}	1176	}
766	} else {	1177	} else {
767	aio_unlink $filename;	1178	aio_unlink $filename;
768	aio_unlink "$filename.pst";	1179	aio_unlink "$filename.pst";
769	}	1180	}
770	}	1181	};
771	}	1182	}
772		1183
773	sub object_freezer_as_string {	1184	sub object_freezer_as_string {
774	my ($rdata, $objs) = @_;	1185	my ($rdata, $objs) = @_;
775		1186
…		…
787	or return;	1198	or return;
788		1199
789	unless (aio_stat "$filename.pst") {	1200	unless (aio_stat "$filename.pst") {
790	(aio_load "$filename.pst", $av) >= 0	1201	(aio_load "$filename.pst", $av) >= 0
791	or return;	1202	or return;
		1203
792	$av = eval { (Storable::thaw $av)->{objs} };	1204	my $st = eval { Coro::Storable::thaw $av };
		1205	$av = $st->{objs};
793	}	1206	}
794		1207
		1208	utf8::decode (my $decname = $filename);
795	warn sprintf "loading %s (%d)\n",	1209	warn sprintf "loading %s (%d,%d)\n",
796	$filename, length $data, scalar @{$av || []};#d#	1210	$decname, length $data, scalar @{$av || []};
		1211
797	return ($data, $av);	1212	($data, $av)
798	}	1213	}
		1214
		1215	=head2 COMMAND CALLBACKS
		1216
		1217	=over 4
		1218
		1219	=cut
799		1220
800	#############################################################################	1221	#############################################################################
801	# command handling &c	1222	# command handling &c
802		1223
803	=item cf::register_command $name => \&callback($ob,$args);	1224	=item cf::register_command $name => \&callback($ob,$args);
…		…
816	push @{ $COMMAND{$name} }, [$caller, $cb];	1237	push @{ $COMMAND{$name} }, [$caller, $cb];
817	}	1238	}
818		1239
819	=item cf::register_extcmd $name => \&callback($pl,$packet);	1240	=item cf::register_extcmd $name => \&callback($pl,$packet);
820		1241
821	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.
822		1247
823	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
824	called.	1249	called.
825		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
826	=cut	1262	=cut
827		1263
828	sub register_extcmd {	1264	sub register_extcmd {
829	my ($name, $cb) = @_;	1265	my ($name, $cb) = @_;
830		1266
831	$EXTCMD{$name} = $cb;	1267	$EXTCMD{$name} = $cb;
832	}	1268	}
		1269
		1270	sub register_exticmd {
		1271	my ($name, $cb) = @_;
		1272
		1273	$EXTICMD{$name} = $cb;
		1274	}
		1275
		1276	use File::Glob ();
833		1277
834	cf::player->attach (	1278	cf::player->attach (
835	on_command => sub {	1279	on_command => sub {
836	my ($pl, $name, $params) = @_;	1280	my ($pl, $name, $params) = @_;
837		1281
…		…
845	cf::override;	1289	cf::override;
846	},	1290	},
847	on_extcmd => sub {	1291	on_extcmd => sub {
848	my ($pl, $buf) = @_;	1292	my ($pl, $buf) = @_;
849		1293
850	my $msg = eval { from_json $buf };	1294	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
851		1295
852	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
853	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1304	if (my $cb = $EXTCMD{$type}) {
854	if (my %reply = $cb->($pl, $msg)) {	1305	@reply = $cb->($pl, @payload);
855	$pl->ext_reply ($msg->{msgid}, %reply);
856	}
857	}	1306	}
		1307
		1308	$pl->ext_reply ($reply, @reply)
		1309	if $reply;
		1310
858	} else {	1311	} else {
859	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1312	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
860	}	1313	}
861		1314
862	cf::override;	1315	cf::override;
863	},	1316	},
864	);	1317	);
865		1318
		1319	# "readahead" all extensions
866	sub load_extension {	1320	sub cache_extensions {
867	my ($path) = @_;	1321	my $grp = IO::AIO::aio_group;
868		1322
869	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1323	add $grp IO::AIO::aio_readdir $LIBDIR, sub {
870	my $base = $1;	1324	for (grep /\.ext$/, @{$_[0]}) {
871	my $pkg = $1;	1325	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
872	$pkg =~ s/[^[:word:]]/_/g;
873	$pkg = "ext::$pkg";
874
875	warn "... loading '$path' into '$pkg'\n";
876
877	open my $fh, "<:utf8", $path
878	or die "$path: $!";
879
880	my $source =
881	"package $pkg; use strict; use utf8;\n"
882	. "#line 1 \"$path\"\n{\n"
883	. (do { local $/; <$fh> })
884	. "\n};\n1";
885
886	unless (eval $source) {
887	my $msg = $@ ? "$path: $@\n"
888	: "extension disabled.\n";
889	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
890	warn $@;
891	warn "mandatory extension failed to load, exiting.\n";
892	exit 1;
893	}	1326	}
894	die $@;
895	}	1327	};
896		1328
897	push @EXTS, $pkg;	1329	$grp
898	}	1330	}
899		1331
900	sub load_extensions {	1332	sub load_extensions {
		1333	cf::sync_job {
		1334	my %todo;
		1335
901	for my $ext (<$LIBDIR/*.ext>) {	1336	for my $path (<$LIBDIR/*.ext>) {
902	next unless -r $ext;	1337	next unless -r $path;
903	eval {	1338
904	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;
905	1	1395	}
906	} or warn "$ext not loaded: $@";	1396
		1397	skip:
		1398	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1399	unless $progress;
		1400	}
907	}	1401	};
908	}	1402	}
909		1403
910	#############################################################################	1404	#############################################################################
911		1405
		1406	=back
		1407
912	=head2 CORE EXTENSIONS	1408	=head2 CORE EXTENSIONS
913		1409
914	Functions and methods that extend core crossfire objects.	1410	Functions and methods that extend core deliantra objects.
915		1411
916	=cut	1412	=cut
917		1413
918	package cf::player;	1414	package cf::player;
919		1415
…		…
921		1417
922	=head3 cf::player	1418	=head3 cf::player
923		1419
924	=over 4	1420	=over 4
925		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
926	=item cf::player::find $login	1436	=item cf::player::find $login
927		1437
928	Returns the given player object, loading it if necessary (might block).	1438	Returns the given player object, loading it if necessary (might block).
929		1439
930	=cut	1440	=cut
931		1441
932	sub playerdir($) {	1442	sub playerdir($) {
933	cf::localdir	1443	"$PLAYERDIR/"
934	. "/"
935	. cf::playerdir
936	. "/"
937	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1444	. (ref $_[0] ? $_[0]->ob->name : $_[0])
938	}	1445	}
939		1446
940	sub path($) {	1447	sub path($) {
941	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1448	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
942		1449
943	(playerdir $login) . "/$login.pl"	1450	(playerdir $login) . "/playerdata"
944	}	1451	}
945		1452
946	sub find_active($) {	1453	sub find_active($) {
947	$cf::PLAYER{$_[0]}	1454	$cf::PLAYER{$_[0]}
948	and $cf::PLAYER{$_[0]}->active	1455	and $cf::PLAYER{$_[0]}->active
…		…
951		1458
952	sub exists($) {	1459	sub exists($) {
953	my ($login) = @_;	1460	my ($login) = @_;
954		1461
955	$cf::PLAYER{$login}	1462	$cf::PLAYER{$login}
956	or cf::sync_job { !aio_stat $login }	1463	or !aio_stat path $login
957	}	1464	}
958		1465
959	sub find($) {	1466	sub find($) {
960	return $cf::PLAYER{$_[0]} || do {	1467	return $cf::PLAYER{$_[0]} || do {
961	my $login = $_[0];	1468	my $login = $_[0];
962		1469
963	my $guard = cf::lock_acquire "user_find:$login";	1470	my $guard = cf::lock_acquire "user_find:$login";
964		1471
965	$cf::PLAYER{$_[0]} || do {	1472	$cf::PLAYER{$_[0]} || do {
966	my $pl = load_pl path $login	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
967	or return;	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;
968	$cf::PLAYER{$login} = $pl	1488	$cf::PLAYER{$login} = $pl
969	}	1489	}
970	}	1490	}
971	}	1491	}
972		1492
…		…
981	return if $pl->{deny_save};	1501	return if $pl->{deny_save};
982		1502
983	aio_mkdir playerdir $pl, 0770;	1503	aio_mkdir playerdir $pl, 0770;
984	$pl->{last_save} = $cf::RUNTIME;	1504	$pl->{last_save} = $cf::RUNTIME;
985		1505
		1506	cf::get_slot 0.01;
		1507
986	$pl->save_pl ($path);	1508	$pl->save_pl ($path);
987	Coro::cede;	1509	cf::cede_to_tick;
988	}	1510	}
989		1511
990	sub new($) {	1512	sub new($) {
991	my ($login) = @_;	1513	my ($login) = @_;
992		1514
…		…
998	$cf::PLAYER{$login} = $self;	1520	$cf::PLAYER{$login} = $self;
999		1521
1000	$self	1522	$self
1001	}	1523	}
1002		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
1003	=item $pl->quit_character	1535	=item $pl->quit_character
1004		1536
1005	Nukes the player without looking back. If logged in, the connection will	1537	Nukes the player without looking back. If logged in, the connection will
1006	be destroyed. May block for a long time.	1538	be destroyed. May block for a long time.
1007		1539
1008	=cut	1540	=cut
1009		1541
1010	sub quit_character {	1542	sub quit_character {
1011	my ($pl) = @_;	1543	my ($pl) = @_;
1012		1544
		1545	my $name = $pl->ob->name;
		1546
1013	$pl->{deny_save} = 1;	1547	$pl->{deny_save} = 1;
1014	$pl->password ("*"); # this should lock out the player until we nuked the dir	1548	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1015		1549
1016	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1550	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1017	$pl->deactivate;	1551	$pl->deactivate;
		1552	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1553	$pl->ob->check_score;
1018	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1554	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1019	$pl->ns->destroy if $pl->ns;	1555	$pl->ns->destroy if $pl->ns;
1020		1556
1021	my $path = playerdir $pl;	1557	my $path = playerdir $pl;
1022	my $temp = "$path~$cf::RUNTIME~deleting~";	1558	my $temp = "$path~$cf::RUNTIME~deleting~";
1023	aio_rename $path, $temp;	1559	aio_rename $path, $temp;
1024	delete $cf::PLAYER{$pl->ob->name};	1560	delete $cf::PLAYER{$pl->ob->name};
1025	$pl->destroy;	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
1026	IO::AIO::aio_rmtree $temp;	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;
1027	}	1583	}
1028		1584
1029	=item cf::player::list_logins	1585	=item cf::player::list_logins
1030		1586
1031	Returns am arrayref of all valid playernames in the system, can take a	1587	Returns am arrayref of all valid playernames in the system, can take a
1032	while and may block, so not sync_job-capable, ever.	1588	while and may block, so not sync_job-capable, ever.
1033		1589
1034	=cut	1590	=cut
1035		1591
1036	sub list_logins {	1592	sub list_logins {
1037	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1593	my $dirs = aio_readdir $PLAYERDIR
1038	or return [];	1594	or return [];
1039		1595
1040	my @logins;	1596	my @logins;
1041		1597
1042	for my $login (@$dirs) {	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") {
1043	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1604	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1044	aio_read $fh, 0, 512, my $buf, 0 or next;	1605	aio_read $fh, 0, 512, my $buf, 0 or next;
1045	$buf !~ /^password -------------$/m or next; # official not-valid tag	1606	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1607	}
1046		1608
1047	utf8::decode $login;	1609	utf8::decode $login;
1048	push @logins, $login;	1610	push @logins, $login;
1049	}	1611	}
1050		1612
…		…
1058		1620
1059	=cut	1621	=cut
1060		1622
1061	sub maps($) {	1623	sub maps($) {
1062	my ($pl) = @_;	1624	my ($pl) = @_;
		1625
		1626	$pl = ref $pl ? $pl->ob->name : $pl;
1063		1627
1064	my $files = aio_readdir playerdir $pl	1628	my $files = aio_readdir playerdir $pl
1065	or return;	1629	or return;
1066		1630
1067	my @paths;	1631	my @paths;
…		…
1069	for (@$files) {	1633	for (@$files) {
1070	utf8::decode $_;	1634	utf8::decode $_;
1071	next if /\.(?:pl|pst)$/;	1635	next if /\.(?:pl|pst)$/;
1072	next unless /^$PATH_SEP/o;	1636	next unless /^$PATH_SEP/o;
1073		1637
1074	s/\.map$//;	1638	push @paths, cf::map::normalise "~$pl/$_";
1075	push @paths, "~" . $pl->ob->name . "/" . $_;
1076	}	1639	}
1077		1640
1078	\@paths	1641	\@paths
1079	}	1642	}
1080		1643
		1644	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1645
		1646	Expand deliantra pod fragments into protocol xml.
		1647
1081	=item $player->ext_reply ($msgid, $msgtype, %msg)	1648	=item $player->ext_reply ($msgid, @msg)
1082		1649
1083	Sends an ext reply to the player.	1650	Sends an ext reply to the player.
1084		1651
1085	=cut	1652	=cut
1086		1653
1087	sub ext_reply($$$%) {	1654	sub ext_reply($$@) {
1088	my ($self, $id, %msg) = @_;	1655	my ($self, $id, @msg) = @_;
1089		1656
1090	$msg{msgid} = $id;	1657	$self->ns->ext_reply ($id, @msg)
1091
1092	$self->send ("ext " . cf::to_json \%msg);
1093	}	1658	}
1094		1659
1095	package cf;	1660	=item $player->ext_msg ($type, @msg)
		1661
		1662	Sends an ext event to the client.
		1663
		1664	=cut
		1665
		1666	sub ext_msg($$@) {
		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	}
1096		1700
1097	=back	1701	=back
1098
1099		1702
1100	=head3 cf::map	1703	=head3 cf::map
1101		1704
1102	=over 4	1705	=over 4
1103		1706
…		…
1107		1710
1108	use Fcntl;	1711	use Fcntl;
1109	use Coro::AIO;	1712	use Coro::AIO;
1110		1713
1111	use overload	1714	use overload
1112	'""' => \&as_string;	1715	'""' => \&as_string,
		1716	fallback => 1;
1113		1717
1114	our $MAX_RESET = 3600;	1718	our $MAX_RESET = 3600;
1115	our $DEFAULT_RESET = 3000;	1719	our $DEFAULT_RESET = 3000;
1116		1720
1117	sub generate_random_map {	1721	sub generate_random_map {
1118	my ($self, $rmp) = @_;	1722	my ($self, $rmp) = @_;
		1723
		1724	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1119		1725
1120	# mit "rum" bekleckern, nicht	1726	# mit "rum" bekleckern, nicht
1121	$self->_create_random_map (	1727	$self->_create_random_map (
1122	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1728	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1123	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1729	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
…		…
1131	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1737	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1132	(cf::region::find $rmp->{region}), $rmp->{custom}	1738	(cf::region::find $rmp->{region}), $rmp->{custom}
1133	)	1739	)
1134	}	1740	}
1135		1741
		1742	=item cf::map->register ($regex, $prio)
		1743
		1744	Register a handler for the map path matching the given regex at the
		1745	givne priority (higher is better, built-in handlers have priority 0, the
		1746	default).
		1747
		1748	=cut
		1749
1136	sub register {	1750	sub register {
1137	my (undef, $regex) = @_;	1751	my (undef, $regex, $prio) = @_;
1138	my $pkg = caller;	1752	my $pkg = caller;
1139		1753
1140	no strict;	1754	no strict;
1141	push @{"$pkg\::ISA"}, __PACKAGE__;	1755	push @{"$pkg\::ISA"}, __PACKAGE__;
1142		1756
1143	$EXT_MAP{$pkg} = qr<$regex>;	1757	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1144	}	1758	}
1145		1759
1146	# also paths starting with '/'	1760	# also paths starting with '/'
1147	$EXT_MAP{"cf::map"} = qr{^(?=/)};	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	}
1148		1772
1149	sub normalise {	1773	sub normalise {
1150	my ($path, $base) = @_;	1774	my ($path, $base) = @_;
		1775
		1776	$path = "$path"; # make sure its a string
		1777
		1778	$path =~ s/\.map$//;
1151		1779
1152	# map plan:	1780	# map plan:
1153	#	1781	#
1154	# /! non-realised random map exit (special hack!)	1782	# /! non-realised random map exit (special hack!)
1155	# {... are special paths that are not being touched	1783	# {... are special paths that are not being touched
…		…
1183		1811
1184	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	1812	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1185		1813
1186	$path = normalise $path, $base;	1814	$path = normalise $path, $base;
1187		1815
1188	for my $pkg (keys %EXT_MAP) {	1816	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1189	if ($path =~ $EXT_MAP{$pkg}) {	1817	if ($path =~ $EXT_MAP{$pkg}[1]) {
1190	my $self = bless cf::map::new, $pkg;	1818	my $self = bless cf::map::new, $pkg;
1191	$self->{path} = $path; $self->path ($path);	1819	$self->{path} = $path; $self->path ($path);
1192	$self->init; # pass $1 etc.	1820	$self->init; # pass $1 etc.
1193	return $self;	1821	return $self;
1194	}	1822	}
1195	}	1823	}
1196		1824
1197	Carp::carp "unable to resolve path '$path'.";	1825	Carp::cluck "unable to resolve path '$path' (base '$base').";
1198	()	1826	()
1199	}	1827	}
1200		1828
1201	sub init {	1829	sub init {
1202	my ($self) = @_;	1830	my ($self) = @_;
…		…
1217		1845
1218	# the original (read-only) location	1846	# the original (read-only) location
1219	sub load_path {	1847	sub load_path {
1220	my ($self) = @_;	1848	my ($self) = @_;
1221		1849
1222	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1850	"$MAPDIR/$self->{path}.map"
1223	}	1851	}
1224		1852
1225	# the temporary/swap location	1853	# the temporary/swap location
1226	sub save_path {	1854	sub save_path {
1227	my ($self) = @_;	1855	my ($self) = @_;
1228		1856
1229	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1857	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1230	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1858	"$TMPDIR/$path.map"
1231	}	1859	}
1232		1860
1233	# the unique path, undef == no special unique path	1861	# the unique path, undef == no special unique path
1234	sub uniq_path {	1862	sub uniq_path {
1235	my ($self) = @_;	1863	my ($self) = @_;
1236		1864
1237	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1865	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1238	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1866	"$UNIQUEDIR/$path"
1239	}	1867	}
1240		1868
1241	# and all this just because we cannot iterate over	1869	sub decay_objects {
1242	# all maps in C++...
1243	sub change_all_map_light {
1244	my ($change) = @_;	1870	my ($self) = @_;
1245		1871
1246	$_->change_map_light ($change)	1872	return if $self->{deny_reset};
1247	for grep $_->outdoor, values %cf::MAP;	1873
		1874	$self->do_decay_objects;
1248	}	1875	}
1249		1876
1250	sub unlink_save {	1877	sub unlink_save {
1251	my ($self) = @_;	1878	my ($self) = @_;
1252		1879
1253	utf8::encode (my $save = $self->save_path);	1880	utf8::encode (my $save = $self->save_path);
1254	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;	1881	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1255	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";	1882	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1256	}	1883	}
1257		1884
1258	sub load_header_from($) {	1885	sub load_header_from($) {
1259	my ($self, $path) = @_;	1886	my ($self, $path) = @_;
1260		1887
1261	utf8::encode $path;	1888	utf8::encode $path;
1262	aio_open $path, O_RDONLY, 0	1889	my $f = new_from_file cf::object::thawer $path
1263	or return;	1890	or return;
1264		1891
1265	$self->_load_header ($path)	1892	$self->_load_header ($f)
1266	or return;	1893	or return;
1267		1894
		1895	local $MAP_LOADING{$self->{path}} = $self;
		1896	$f->resolve_delayed_derefs;
		1897
1268	$self->{load_path} = $path;	1898	$self->{load_path} = $path;
1269		1899
1270	1	1900	1
1271	}	1901	}
1272		1902
1273	sub load_orig {	1903	sub load_header_orig {
1274	my ($self) = @_;	1904	my ($self) = @_;
1275		1905
1276	$self->load_header_from ($self->load_path)	1906	$self->load_header_from ($self->load_path)
1277	}	1907	}
1278		1908
1279	sub load_temp {	1909	sub load_header_temp {
1280	my ($self) = @_;	1910	my ($self) = @_;
1281		1911
1282	$self->load_header_from ($self->save_path)	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	$self->instantiate;
1283	}	1932	}
1284		1933
1285	sub load_header {	1934	sub load_header {
1286	my ($self) = @_;	1935	my ($self) = @_;
1287		1936
1288	if ($self->load_temp) {	1937	if ($self->load_header_temp) {
1289	$self->last_access ((delete $self->{last_access})	1938	$self->prepare_temp;
1290	|| $cf::RUNTIME); #d#
1291	# safety
1292	$self->{instantiate_time} = $cf::RUNTIME
1293	if $self->{instantiate_time} > $cf::RUNTIME;
1294	} else {	1939	} else {
1295	$self->load_orig	1940	$self->load_header_orig
1296	or return;	1941	or return;
1297		1942	$self->prepare_orig;
1298	$self->{load_original} = 1;
1299	$self->{instantiate_time} = $cf::RUNTIME;
1300	$self->last_access ($cf::RUNTIME);
1301	$self->instantiate;
1302	}	1943	}
		1944
		1945	$self->{deny_reset} = 1
		1946	if $self->no_reset;
		1947
		1948	$self->default_region (cf::region::find_by_path $self->{path})
		1949	unless $self->default_region;
1303		1950
1304	1	1951	1
1305	}	1952	}
1306		1953
1307	sub find;	1954	sub find;
1308	sub find {	1955	sub find {
1309	my ($path, $origin) = @_;	1956	my ($path, $origin) = @_;
1310		1957
1311	$path = normalise $path, $origin && $origin->path;	1958	$path = normalise $path, $origin && $origin->path;
1312		1959
		1960	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1313	cf::lock_wait "map_find:$path";	1961	my $guard2 = cf::lock_acquire "map_find:$path";
1314		1962
1315	$cf::MAP{$path} || do {	1963	$cf::MAP{$path} || do {
1316	my $guard = cf::lock_acquire "map_find:$path";
1317	my $map = new_from_path cf::map $path	1964	my $map = new_from_path cf::map $path
1318	or return;	1965	or return;
1319		1966
1320	$map->{last_save} = $cf::RUNTIME;	1967	$map->{last_save} = $cf::RUNTIME;
1321		1968
1322	$map->load_header	1969	$map->load_header
1323	or return;	1970	or return;
1324		1971
1325	if ($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;
1326	$map->reset;	1977	$map->reset;
1327	undef $guard;
1328	$map = find $path	1978	return find $path;
1329	or return;
1330	}	1979	}
1331		1980
1332	$cf::MAP{$path} = $map	1981	$cf::MAP{$path} = $map
1333	}	1982	}
1334	}	1983	}
		1984
		1985	sub pre_load { }
		1986	sub post_load { }
1335		1987
1336	sub load {	1988	sub load {
1337	my ($self) = @_;	1989	my ($self) = @_;
1338		1990
		1991	local $self->{deny_reset} = 1; # loading can take a long time
		1992
1339	my $path = $self->{path};	1993	my $path = $self->{path};
		1994
		1995	{
1340	my $guard = cf::lock_acquire "map_load:$path";	1996	my $guard = cf::lock_acquire "map_data:$path";
1341		1997
		1998	return unless $self->valid;
1342	return if $self->in_memory != cf::MAP_SWAPPED;	1999	return unless $self->in_memory == cf::MAP_SWAPPED;
1343		2000
1344	$self->in_memory (cf::MAP_LOADING);	2001	$self->in_memory (cf::MAP_LOADING);
1345		2002
1346	$self->alloc;	2003	$self->alloc;
1347	$self->_load_objects ($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)
1348	or return;	2011	or return;
1349		2012
1350	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2013	$self->post_load_original
1351	if delete $self->{load_original};	2014	if delete $self->{load_original};
1352		2015
1353	if (my $uniq = $self->uniq_path) {	2016	if (my $uniq = $self->uniq_path) {
1354	utf8::encode $uniq;	2017	utf8::encode $uniq;
1355	if (aio_open $uniq, O_RDONLY, 0) {	2018	unless (aio_stat $uniq) {
		2019	if (my $f = new_from_file cf::object::thawer $uniq) {
1356	$self->clear_unique_items;	2020	$self->clear_unique_items;
1357	$self->_load_objects ($uniq, 0);	2021	$self->_load_objects ($f);
		2022	$f->resolve_delayed_derefs;
		2023	}
1358	}	2024	}
1359	}	2025	}
1360		2026
1361	Coro::cede;	2027	$f->resolve_delayed_derefs;
1362		2028
		2029	cf::cede_to_tick;
1363	# now do the right thing for maps	2030	# now do the right thing for maps
1364	$self->link_multipart_objects;	2031	$self->link_multipart_objects;
1365
1366	unless ($self->{deny_activate}) {
1367	$self->decay_objects;
1368	$self->fix_auto_apply;
1369	$self->update_buttons;
1370	Coro::cede;
1371	$self->set_darkness_map;
1372	$self->difficulty ($self->estimate_difficulty)	2032	$self->difficulty ($self->estimate_difficulty)
1373	unless $self->difficulty;	2033	unless $self->difficulty;
1374	Coro::cede;	2034	cf::cede_to_tick;
		2035
		2036	unless ($self->{deny_activate}) {
		2037	$self->decay_objects;
		2038	$self->fix_auto_apply;
		2039	$self->update_buttons;
		2040	cf::cede_to_tick;
1375	$self->activate;	2041	$self->activate;
1376	}	2042	}
1377		2043
		2044	$self->{last_save} = $cf::RUNTIME;
		2045	$self->last_access ($cf::RUNTIME);
		2046
1378	$self->in_memory (cf::MAP_IN_MEMORY);	2047	$self->in_memory (cf::MAP_ACTIVE);
		2048	}
		2049
		2050	$self->post_load;
1379	}	2051	}
1380		2052
1381	sub customise_for {	2053	sub customise_for {
1382	my ($self, $ob) = @_;	2054	my ($self, $ob) = @_;
1383		2055
1384	return find "~" . $ob->name . "/" . $self->{path}	2056	return find "~" . $ob->name . "/" . $self->{path}
1385	if $self->per_player;	2057	if $self->per_player;
1386		2058
		2059	# return find "?party/" . $ob->name . "/" . $self->{path}
		2060	# if $self->per_party;
		2061
1387	$self	2062	$self
1388	}	2063	}
1389		2064
1390	# find and load all maps in the 3x3 area around a map	2065	# find and load all maps in the 3x3 area around a map
1391	sub load_diag {	2066	sub load_neighbours {
1392	my ($map) = @_;	2067	my ($map) = @_;
1393		2068
1394	my @diag; # diagonal neighbours	2069	my @neigh; # diagonal neighbours
1395		2070
1396	for (0 .. 3) {	2071	for (0 .. 3) {
1397	my $neigh = $map->tile_path ($_)	2072	my $neigh = $map->tile_path ($_)
1398	or next;	2073	or next;
1399	$neigh = find $neigh, $map	2074	$neigh = find $neigh, $map
1400	or next;	2075	or next;
1401	$neigh->load;	2076	$neigh->load;
1402		2077
		2078	push @neigh,
1403	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2079	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1404	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2080	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1405	}	2081	}
1406		2082
1407	for (@diag) {	2083	for (grep defined $_->[0], @neigh) {
		2084	my ($path, $origin) = @$_;
1408	my $neigh = find @$_	2085	my $neigh = find $path, $origin
1409	or next;	2086	or next;
1410	$neigh->load;	2087	$neigh->load;
1411	}	2088	}
1412	}	2089	}
1413		2090
…		…
1418	}	2095	}
1419		2096
1420	sub do_load_sync {	2097	sub do_load_sync {
1421	my ($map) = @_;	2098	my ($map) = @_;
1422		2099
		2100	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2101	if $Coro::current == $Coro::main;
		2102
1423	cf::sync_job { $map->load };	2103	cf::sync_job { $map->load };
1424	}	2104	}
1425		2105
1426	our %MAP_PREFETCH;	2106	our %MAP_PREFETCH;
1427	our $MAP_PREFETCHER = Coro::async {	2107	our $MAP_PREFETCHER = undef;
1428	while () {
1429	for my $path (keys %MAP_PREFETCH) {
1430	my $map = find $path
1431	or next;
1432	$map->load;
1433
1434	delete $MAP_PREFETCH{$path};
1435	}
1436	Coro::schedule;
1437	}
1438	};
1439		2108
1440	sub find_async {	2109	sub find_async {
1441	my ($path, $origin) = @_;	2110	my ($path, $origin, $load) = @_;
1442		2111
1443	$path = normalise $path, $origin && $origin->{path};	2112	$path = normalise $path, $origin && $origin->{path};
1444		2113
1445	if (my $map = $cf::MAP{$path}) {	2114	if (my $map = $cf::MAP{$path}) {
1446	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	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;
1447	}	2133	};
1448
1449	$MAP_PREFETCH{$path} = 0;
1450	$MAP_PREFETCHER->ready;	2134	$MAP_PREFETCHER->prio (6);
1451		2135
1452	()	2136	()
1453	}	2137	}
1454		2138
1455	sub save {	2139	sub save {
1456	my ($self) = @_;	2140	my ($self) = @_;
1457		2141
1458	my $lock = cf::lock_acquire "map_data:" . $self->path;	2142	my $lock = cf::lock_acquire "map_data:$self->{path}";
1459		2143
1460	$self->{last_save} = $cf::RUNTIME;	2144	$self->{last_save} = $cf::RUNTIME;
1461		2145
1462	return unless $self->dirty;	2146	return unless $self->dirty;
1463		2147
…		…
1469	return if $self->{deny_save};	2153	return if $self->{deny_save};
1470		2154
1471	local $self->{last_access} = $self->last_access;#d#	2155	local $self->{last_access} = $self->last_access;#d#
1472		2156
1473	cf::async {	2157	cf::async {
		2158	$Coro::current->{desc} = "map player save";
1474	$_->contr->save for $self->players;	2159	$_->contr->save for $self->players;
1475	};	2160	};
		2161
		2162	cf::get_slot 0.02;
1476		2163
1477	if ($uniq) {	2164	if ($uniq) {
1478	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2165	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1479	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2166	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1480	} else {	2167	} else {
…		…
1486	my ($self) = @_;	2173	my ($self) = @_;
1487		2174
1488	# save first because save cedes	2175	# save first because save cedes
1489	$self->save;	2176	$self->save;
1490		2177
1491	my $lock = cf::lock_acquire "map_data:" . $self->path;	2178	my $lock = cf::lock_acquire "map_data:$self->{path}";
1492		2179
1493	return if $self->players;	2180	return if $self->players;
1494	return if $self->in_memory != cf::MAP_IN_MEMORY;	2181	return if $self->in_memory != cf::MAP_ACTIVE;
1495	return if $self->{deny_save};	2182	return if $self->{deny_save};
1496		2183
		2184	$self->in_memory (cf::MAP_SWAPPED);
		2185
		2186	$self->deactivate;
		2187	$_->clear_links_to ($self) for values %cf::MAP;
1497	$self->clear;	2188	$self->clear;
1498	$self->in_memory (cf::MAP_SWAPPED);
1499	}	2189	}
1500		2190
1501	sub reset_at {	2191	sub reset_at {
1502	my ($self) = @_;	2192	my ($self) = @_;
1503		2193
1504	# TODO: safety, remove and allow resettable per-player maps	2194	# TODO: safety, remove and allow resettable per-player maps
1505	return 1e99 if $self->isa ("ext::map_per_player");#d#
1506	return 1e99 if $self->{deny_reset};	2195	return 1e99 if $self->{deny_reset};
1507		2196
1508	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2197	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1509	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2198	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1510		2199
…		…
1515	my ($self) = @_;	2204	my ($self) = @_;
1516		2205
1517	$self->reset_at <= $cf::RUNTIME	2206	$self->reset_at <= $cf::RUNTIME
1518	}	2207	}
1519		2208
1520	sub rename {
1521	my ($self, $new_path) = @_;
1522
1523	normalise $new_path;
1524
1525	$self->unlink_save;
1526
1527	delete $cf::MAP{$self->path};
1528	$self->{path} = $new_path; $self->path ($self->{path});
1529	$cf::MAP{$self->path} = $self;
1530
1531	$self->save;
1532	}
1533
1534	sub reset {	2209	sub reset {
1535	my ($self) = @_;	2210	my ($self) = @_;
1536		2211
1537	my $lock = cf::lock_acquire "map_data:$self->{path}";	2212	my $lock = cf::lock_acquire "map_data:$self->{path}";
1538		2213
1539	return if $self->players;	2214	return if $self->players;
1540	return if $self->isa ("ext::map_per_player");#d#
1541		2215
1542	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	}
1543		2227
1544	delete $cf::MAP{$self->path};	2228	delete $cf::MAP{$self->path};
1545		2229
1546	$self->in_memory (cf::MAP_SWAPPED);	2230	$self->deactivate;
		2231	$_->clear_links_to ($self) for values %cf::MAP;
1547	$self->clear;	2232	$self->clear;
1548
1549	$_->clear_links_to ($self) for values %cf::MAP;
1550		2233
1551	$self->unlink_save;	2234	$self->unlink_save;
1552	$self->destroy;	2235	$self->destroy;
1553	}	2236	}
1554		2237
1555	my $nuke_counter = "aaaa";	2238	my $nuke_counter = "aaaa";
1556		2239
1557	sub nuke {	2240	sub nuke {
1558	my ($self) = @_;	2241	my ($self) = @_;
1559		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};
1560	$self->{deny_save} = 1;	2252	$self->{deny_save} = 1;
1561	$self->reset_timeout (1);	2253	$self->reset_timeout (1);
1562	$self->rename ("{nuke}/" . ($nuke_counter++));	2254	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2255
		2256	$cf::MAP{$self->path} = $self;
		2257	}
		2258
1563	$self->reset; # polite request, might not happen	2259	$self->reset; # polite request, might not happen
		2260	}
		2261
		2262	=item $maps = cf::map::tmp_maps
		2263
		2264	Returns an arrayref with all map paths of currently instantiated and saved
		2265	maps. May block.
		2266
		2267	=cut
		2268
		2269	sub tmp_maps() {
		2270	[
		2271	map {
		2272	utf8::decode $_;
		2273	/\.map$/
		2274	? normalise $_
		2275	: ()
		2276	} @{ aio_readdir $TMPDIR or [] }
		2277	]
		2278	}
		2279
		2280	=item $maps = cf::map::random_maps
		2281
		2282	Returns an arrayref with all map paths of currently instantiated and saved
		2283	random maps. May block.
		2284
		2285	=cut
		2286
		2287	sub random_maps() {
		2288	[
		2289	map {
		2290	utf8::decode $_;
		2291	/\.map$/
		2292	? normalise "?random/$_"
		2293	: ()
		2294	} @{ aio_readdir $RANDOMDIR or [] }
		2295	]
1564	}	2296	}
1565		2297
1566	=item cf::map::unique_maps	2298	=item cf::map::unique_maps
1567		2299
1568	Returns an arrayref of paths of all shared maps that have	2300	Returns an arrayref of paths of all shared maps that have
1569	instantiated unique items. May block.	2301	instantiated unique items. May block.
1570		2302
1571	=cut	2303	=cut
1572		2304
1573	sub unique_maps() {	2305	sub unique_maps() {
1574	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2306	[
1575	or return;	2307	map {
1576
1577	my @paths;
1578
1579	for (@$files) {
1580	utf8::decode $_;	2308	utf8::decode $_;
1581	next if /\.pst$/;	2309	s/\.map$//; # TODO future compatibility hack
1582	next unless /^$PATH_SEP/o;	2310	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1583		2311	? ()
1584	s/\.map$//;	2312	: normalise $_
1585	push @paths, $_;	2313	} @{ aio_readdir $UNIQUEDIR or [] }
1586	}	2314	]
1587
1588	\@paths
1589	}	2315	}
1590
1591	package cf;
1592		2316
1593	=back	2317	=back
1594		2318
1595	=head3 cf::object	2319	=head3 cf::object
1596		2320
…		…
1600		2324
1601	=over 4	2325	=over 4
1602		2326
1603	=item $ob->inv_recursive	2327	=item $ob->inv_recursive
1604		2328
1605	Returns the inventory of the object _and_ their inventories, recursively.	2329	Returns the inventory of the object I<and> their inventories, recursively,
		2330	but I<not> the object itself.
1606		2331
1607	=cut	2332	=cut
1608		2333
1609	sub inv_recursive_;	2334	sub inv_recursive_;
1610	sub inv_recursive_ {	2335	sub inv_recursive_ {
…		…
1613		2338
1614	sub inv_recursive {	2339	sub inv_recursive {
1615	inv_recursive_ inv $_[0]	2340	inv_recursive_ inv $_[0]
1616	}	2341	}
1617		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
		2368	}
		2369	}
		2370
1618	package cf;	2371	package cf;
1619		2372
1620	=back	2373	=back
1621		2374
1622	=head3 cf::object::player	2375	=head3 cf::object::player
…		…
1628	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>
1629	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
1630	dialogue with the given NPC character.	2383	dialogue with the given NPC character.
1631		2384
1632	=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	};
1633		2400
1634	# rough implementation of a future "reply" method that works	2401	# rough implementation of a future "reply" method that works
1635	# with dialog boxes.	2402	# with dialog boxes.
1636	#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
1637	sub cf::object::player::reply($$$;$) {	2404	sub cf::object::player::reply($$$;$) {
…		…
1639		2406
1640	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2407	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1641		2408
1642	if ($self->{record_replies}) {	2409	if ($self->{record_replies}) {
1643	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2410	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2411
1644	} 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 {
1645	$msg = $npc->name . " says: $msg" if $npc;	2420	$msg = $npc->name . " says: $msg" if $npc;
1646	$self->message ($msg, $flags);	2421	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2422	}
1647	}	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 (@_);
1648	}	2434	}
1649		2435
1650	=item $player_object->may ("access")	2436	=item $player_object->may ("access")
1651		2437
1652	Returns wether the given player is authorized to access resource "access"	2438	Returns wether the given player is authorized to access resource "access"
…		…
1665		2451
1666	=item $player_object->enter_link	2452	=item $player_object->enter_link
1667		2453
1668	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}>).
1669		2455
1670	The player should be reasonably safe there for short amounts of time. You	2456	The player should be reasonably safe there for short amounts of time (e.g.
1671	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.
1672		2460
1673	Will never block.	2461	Will never block.
1674		2462
1675	=item $player_object->leave_link ($map, $x, $y)	2463	=item $player_object->leave_link ($map, $x, $y)
1676		2464
…		…
1684	=cut	2472	=cut
1685		2473
1686	sub link_map {	2474	sub link_map {
1687	unless ($LINK_MAP) {	2475	unless ($LINK_MAP) {
1688	$LINK_MAP = cf::map::find "{link}"	2476	$LINK_MAP = cf::map::find "{link}"
1689	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2477	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1690	$LINK_MAP->load;	2478	$LINK_MAP->load;
1691	}	2479	}
1692		2480
1693	$LINK_MAP	2481	$LINK_MAP
1694	}	2482	}
…		…
1699	$self->deactivate_recursive;	2487	$self->deactivate_recursive;
1700		2488
1701	return if UNIVERSAL::isa $self->map, "ext::map_link";	2489	return if UNIVERSAL::isa $self->map, "ext::map_link";
1702		2490
1703	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2491	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1704	if $self->map;	2492	if $self->map && $self->map->{path} ne "{link}";
1705		2493
1706	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2494	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1707	}	2495	}
1708		2496
1709	sub cf::object::player::leave_link {	2497	sub cf::object::player::leave_link {
1710	my ($self, $map, $x, $y) = @_;	2498	my ($self, $map, $x, $y) = @_;
		2499
		2500	return unless $self->contr->active;
1711		2501
1712	my $link_pos = delete $self->{_link_pos};	2502	my $link_pos = delete $self->{_link_pos};
1713		2503
1714	unless ($map) {	2504	unless ($map) {
1715	# restore original map position	2505	# restore original map position
…		…
1729	# use -1 or undef as default coordinates, not 0, 0	2519	# use -1 or undef as default coordinates, not 0, 0
1730	($x, $y) = ($map->enter_x, $map->enter_y)	2520	($x, $y) = ($map->enter_x, $map->enter_y)
1731	if $x <=0 && $y <= 0;	2521	if $x <=0 && $y <= 0;
1732		2522
1733	$map->load;	2523	$map->load;
1734	$map->load_diag;	2524	$map->load_neighbours;
1735		2525
1736	return unless $self->contr->active;	2526	return unless $self->contr->active;
		2527	$self->flag (cf::FLAG_DEBUG, 0);#d# temp
1737	$self->activate_recursive;	2528	$self->activate_recursive;
		2529
		2530	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1738	$self->enter_map ($map, $x, $y);	2531	$self->enter_map ($map, $x, $y);
1739	}	2532	}
1740		2533
1741	cf::player->attach (	2534	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1742	on_logout => sub {
1743	my ($pl) = @_;
1744		2535
1745	# abort map switching before logout	2536	Moves the player to the given map-path and coordinates by first freezing
1746	if ($pl->ob->{_link_pos}) {	2537	her, loading and preparing them map, calling the provided $check callback
1747	cf::sync_job {	2538	that has to return the map if sucecssful, and then unfreezes the player on
1748	$pl->ob->leave_link	2539	the new (success) or old (failed) map position. In either case, $done will
1749	};	2540	be called at the end of this process.
1750	}
1751	},
1752	on_login => sub {
1753	my ($pl) = @_;
1754		2541
1755	# try to abort aborted map switching on player login :)	2542	Note that $check will be called with a potentially non-loaded map, so if
1756	# should happen only on crashes	2543	it needs a loaded map it has to call C<< ->load >>.
1757	if ($pl->ob->{_link_pos}) {
1758	$pl->ob->enter_link;
1759	(async {
1760	# we need this sleep as the login has a concurrent enter_exit running
1761	# and this sleep increases chances of the player not ending up in scorn
1762	$pl->ob->reply (undef,
1763	"There was an internal problem at your last logout, "
1764	. "the server will try to bring you to your intended destination in a second.",
1765	cf::NDI_RED);
1766	Coro::Timer::sleep 1;
1767	$pl->ob->leave_link;
1768	})->prio (2);
1769	}
1770	},
1771	);
1772		2544
1773	=item $player_object->goto ($path, $x, $y)
1774
1775	=cut	2545	=cut
		2546
		2547	our $GOTOGEN;
1776		2548
1777	sub cf::object::player::goto {	2549	sub cf::object::player::goto {
1778	my ($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;
1779		2554
1780	$self->enter_link;	2555	$self->enter_link;
1781		2556
1782	(async {	2557	(async {
1783	my $map = cf::map::find $path;	2558	$Coro::current->{desc} = "player::goto $path $x $y";
		2559
		2560	# *tag paths override both path and x|y
		2561	if ($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) {
1784	$map = $map->customise_for ($self) if $map;	2583	$map = $map->customise_for ($self);
1785		2584	$map = $check->($map) if $check && $map;
1786	# warn "entering ", $map->path, " at ($x, $y)\n"	2585	} else {
1787	# if $map;
1788
1789	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2586	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2587	}
1790		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};
1791	$self->leave_link ($map, $x, $y);	2599	$self->leave_link ($map, $x, $y);
		2600	}
		2601
		2602	$done->() if $done;
1792	})->prio (1);	2603	})->prio (1);
1793	}	2604	}
1794		2605
1795	=item $player_object->enter_exit ($exit_object)	2606	=item $player_object->enter_exit ($exit_object)
1796		2607
…		…
1798		2609
1799	sub parse_random_map_params {	2610	sub parse_random_map_params {
1800	my ($spec) = @_;	2611	my ($spec) = @_;
1801		2612
1802	my $rmp = { # defaults	2613	my $rmp = { # defaults
1803	xsize => 10,	2614	xsize => (cf::rndm 15, 40),
1804	ysize => 10,	2615	ysize => (cf::rndm 15, 40),
		2616	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2617	#layout => string,
1805	};	2618	};
1806		2619
1807	for (split /\n/, $spec) {	2620	for (split /\n/, $spec) {
1808	my ($k, $v) = split /\s+/, $_, 2;	2621	my ($k, $v) = split /\s+/, $_, 2;
1809		2622
…		…
1821	# that depends on the exit object	2634	# that depends on the exit object
1822		2635
1823	my $rmp = parse_random_map_params $exit->msg;	2636	my $rmp = parse_random_map_params $exit->msg;
1824		2637
1825	if ($exit->map) {	2638	if ($exit->map) {
1826	$rmp->{region} = $exit->map->region_name;	2639	$rmp->{region} = $exit->region->name;
1827	$rmp->{origin_map} = $exit->map->path;	2640	$rmp->{origin_map} = $exit->map->path;
1828	$rmp->{origin_x} = $exit->x;	2641	$rmp->{origin_x} = $exit->x;
1829	$rmp->{origin_y} = $exit->y;	2642	$rmp->{origin_y} = $exit->y;
		2643
		2644	$exit->map->touch;
1830	}	2645	}
1831		2646
1832	$rmp->{random_seed} ||= $exit->random_seed;	2647	$rmp->{random_seed} ||= $exit->random_seed;
1833		2648
1834	my $data = cf::to_json $rmp;	2649	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1835	my $md5 = Digest::MD5::md5_hex $data;	2650	my $md5 = Digest::MD5::md5_hex $data;
		2651	my $meta = "$RANDOMDIR/$md5.meta";
1836		2652
1837	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) {
1838	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;
1839		2657
		2658	my $slaying = "?random/$md5";
		2659
		2660	if ($exit->valid) {
1840	$exit->slaying ("?random/$md5");	2661	$exit->slaying ("?random/$md5");
1841	$exit->msg (undef);	2662	$exit->msg (undef);
		2663	}
1842	}	2664	}
1843	}	2665	}
1844		2666
1845	sub cf::object::player::enter_exit {	2667	sub cf::object::player::enter_exit {
1846	my ($self, $exit) = @_;	2668	my ($self, $exit) = @_;
…		…
1848	return unless $self->type == cf::PLAYER;	2670	return unless $self->type == cf::PLAYER;
1849		2671
1850	$self->enter_link;	2672	$self->enter_link;
1851		2673
1852	(async {	2674	(async {
1853	$self->deactivate_recursive; # just to be sure	2675	$Coro::current->{desc} = "enter_exit";
		2676
1854	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
1855	prepare_random_map $exit	2684	prepare_random_map $exit
1856	if $exit->slaying eq "/!";	2685	if $exit->slaying eq "/!";
		2686	}
1857		2687
1858	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;	2688	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1859	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2689	my $x = $exit->stats->hp;
		2690	my $y = $exit->stats->sp;
1860		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
1861	1;	2698	1
1862	}) {	2699	}) {
1863	$self->message ("Something went wrong deep within the crossfire server. "	2700	$self->message ("Something went wrong deep within the deliantra server. "
1864	. "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. "
1865	. "Please report this to the dungeon master!",	2702	. "Please report this to the dungeon master!",
1866	cf::NDI_UNIQUE | cf::NDI_RED);	2703	cf::NDI_UNIQUE | cf::NDI_RED);
1867		2704
1868	warn "ERROR in enter_exit: $@";	2705	warn "ERROR in enter_exit: $@";
1869	$self->leave_link;	2706	$self->leave_link;
1870	}	2707	}
1871	})->prio (1);	2708	})->prio (1);
…		…
1884		2721
1885	sub cf::client::send_drawinfo {	2722	sub cf::client::send_drawinfo {
1886	my ($self, $text, $flags) = @_;	2723	my ($self, $text, $flags) = @_;
1887		2724
1888	utf8::encode $text;	2725	utf8::encode $text;
1889	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2726	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1890	}	2727	}
1891		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	}
1892		2911
1893	=item $success = $client->query ($flags, "text", \&cb)	2912	=item $success = $client->query ($flags, "text", \&cb)
1894		2913
1895	Queues a query to the client, calling the given callback with	2914	Queues a query to the client, calling the given callback with
1896	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>,
1897	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>.
1898		2917
1899	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
1900	reliable at some point in the future.	2919	become reliable at some point in the future.
1901		2920
1902	=cut	2921	=cut
1903		2922
1904	sub cf::client::query {	2923	sub cf::client::query {
1905	my ($self, $flags, $text, $cb) = @_;	2924	my ($self, $flags, $text, $cb) = @_;
…		…
1913	utf8::encode $text;	2932	utf8::encode $text;
1914	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2933	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1915		2934
1916	$self->send_packet ($self->{query_queue}[0][0])	2935	$self->send_packet ($self->{query_queue}[0][0])
1917	if @{ $self->{query_queue} } == 1;	2936	if @{ $self->{query_queue} } == 1;
		2937
		2938	1
1918	}	2939	}
1919		2940
1920	cf::client->attach (	2941	cf::client->attach (
		2942	on_connect => sub {
		2943	my ($ns) = @_;
		2944
		2945	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2946	},
1921	on_reply => sub {	2947	on_reply => sub {
1922	my ($ns, $msg) = @_;	2948	my ($ns, $msg) = @_;
1923		2949
1924	# this weird shuffling is so that direct followup queries	2950	# this weird shuffling is so that direct followup queries
1925	# get handled first	2951	# get handled first
1926	my $queue = delete $ns->{query_queue}	2952	my $queue = delete $ns->{query_queue}
1927	or return; # be conservative, not sure how that can happen, but we saw a crash here	2953	or return; # be conservative, not sure how that can happen, but we saw a crash here
1928		2954
1929	(shift @$queue)->[1]->($msg);	2955	(shift @$queue)->[1]->($msg);
		2956	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1930		2957
1931	push @{ $ns->{query_queue} }, @$queue;	2958	push @{ $ns->{query_queue} }, @$queue;
1932		2959
1933	if (@{ $ns->{query_queue} } == @$queue) {	2960	if (@{ $ns->{query_queue} } == @$queue) {
1934	if (@$queue) {	2961	if (@$queue) {
…		…
1936	} else {	2963	} else {
1937	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2964	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1938	}	2965	}
1939	}	2966	}
1940	},	2967	},
		2968	on_exticmd => sub {
		2969	my ($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	},
1941	);	2994	);
1942		2995
1943	=item $client->async (\&cb)	2996	=item $client->async (\&cb)
1944		2997
1945	Create a new coroutine, running the specified callback. The coroutine will	2998	Create a new coroutine, running the specified callback. The coroutine will
…		…
1986	our $safe = new Safe "safe";	3039	our $safe = new Safe "safe";
1987	our $safe_hole = new Safe::Hole;	3040	our $safe_hole = new Safe::Hole;
1988		3041
1989	$SIG{FPE} = 'IGNORE';	3042	$SIG{FPE} = 'IGNORE';
1990		3043
1991	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3044	$safe->permit_only (Opcode::opset qw(
		3045	:base_core :base_mem :base_orig :base_math
		3046	grepstart grepwhile mapstart mapwhile
		3047	sort time
		3048	));
1992		3049
1993	# here we export the classes and methods available to script code	3050	# here we export the classes and methods available to script code
1994		3051
1995	=pod	3052	=pod
1996		3053
1997	The following fucntions and emthods are available within a safe environment:	3054	The following functions and methods are available within a safe environment:
1998		3055
1999	cf::object contr pay_amount pay_player map	3056	cf::object
		3057	contr pay_amount pay_player map x y force_find force_add destroy
		3058	insert remove name archname title slaying race decrease split
		3059	value
		3060
2000	cf::object::player player	3061	cf::object::player
2001	cf::player peaceful	3062	player
2002	cf::map trigger	3063
		3064	cf::player
		3065	peaceful
		3066
		3067	cf::map
		3068	trigger
2003		3069
2004	=cut	3070	=cut
2005		3071
2006	for (	3072	for (
2007	["cf::object" => qw(contr pay_amount pay_player map)],	3073	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3074	insert remove inv nrof name archname title slaying race
		3075	decrease split destroy change_exp value msg lore send_msg)],
2008	["cf::object::player" => qw(player)],	3076	["cf::object::player" => qw(player)],
2009	["cf::player" => qw(peaceful)],	3077	["cf::player" => qw(peaceful send_msg)],
2010	["cf::map" => qw(trigger)],	3078	["cf::map" => qw(trigger)],
2011	) {	3079	) {
2012	no strict 'refs';	3080	no strict 'refs';
2013	my ($pkg, @funs) = @$_;	3081	my ($pkg, @funs) = @$_;
2014	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3082	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2031	my ($code, %vars) = @_;	3099	my ($code, %vars) = @_;
2032		3100
2033	my $qcode = $code;	3101	my $qcode = $code;
2034	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3102	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2035	$qcode =~ s/\n/\\n/g;	3103	$qcode =~ s/\n/\\n/g;
		3104
		3105	%vars = (_dummy => 0) unless %vars;
2036		3106
2037	local $_;	3107	local $_;
2038	local @safe::cf::_safe_eval_args = values %vars;	3108	local @safe::cf::_safe_eval_args = values %vars;
2039		3109
2040	my $eval =	3110	my $eval =
…		…
2083	=back	3153	=back
2084		3154
2085	=cut	3155	=cut
2086		3156
2087	#############################################################################	3157	#############################################################################
		3158	# the server's init and main functions
2088		3159
2089	=head2 EXTENSION DATABASE SUPPORT	3160	sub load_facedata($) {
		3161	my ($path) = @_;
2090		3162
2091	Crossfire maintains a very simple database for extension use. It can	3163	# HACK to clear player env face cache, we need some signal framework
2092	currently store anything that can be serialised using Storable, which	3164	# for this (global event?)
2093	excludes objects.	3165	%ext::player_env::MUSIC_FACE_CACHE = ();
2094		3166
2095	The parameter C<$family> should best start with the name of the extension	3167	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2096	using it, it should be unique.
2097		3168
2098	=over 4	3169	warn "loading facedata from $path\n";
2099		3170
2100	=item $hashref = cf::db_get $family	3171	my $facedata;
		3172	0 < aio_load $path, $facedata
		3173	or die "$path: $!";
2101		3174
2102	Return a hashref for use by the extension C<$family>, which can be	3175	$facedata = Coro::Storable::thaw $facedata;
2103	modified. After modifications, you have to call C<cf::db_dirty> or
2104	C<cf::db_sync>.
2105		3176
2106	=item $value = cf::db_get $family => $key	3177	$facedata->{version} == 2
		3178	or cf::cleanup "$path: version mismatch, cannot proceed.";
2107		3179
2108	Returns a single value from the database	3180	# patch in the exptable
2109		3181	$facedata->{resource}{"res/exp_table"} = {
2110	=item cf::db_put $family => $hashref	3182	type => FT_RSRC,
2111		3183	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2112	Stores the given family hashref into the database. Updates are delayed, if
2113	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2114
2115	=item cf::db_put $family => $key => $value
2116
2117	Stores the given C<$value> in the family hash. Updates are delayed, if you
2118	want the data to be synced to disk immediately, use C<cf::db_sync>.
2119
2120	=item cf::db_dirty
2121
2122	Marks the database as dirty, to be updated at a later time.
2123
2124	=item cf::db_sync
2125
2126	Immediately write the database to disk I<if it is dirty>.
2127
2128	=cut
2129
2130	our $DB;
2131
2132	{
2133	my $path = cf::localdir . "/database.pst";
2134
2135	sub db_load() {
2136	$DB = stat $path ? Storable::retrieve $path : { };
2137	}
2138
2139	my $pid;
2140
2141	sub db_save() {
2142	waitpid $pid, 0 if $pid;
2143	if (0 == ($pid = fork)) {
2144	$DB->{_meta}{version} = 1;
2145	Storable::nstore $DB, "$path~";
2146	rename "$path~", $path;
2147	cf::_exit 0 if defined $pid;
2148	}
2149	}
2150
2151	my $dirty;
2152
2153	sub db_sync() {
2154	db_save if $dirty;
2155	undef $dirty;
2156	}
2157
2158	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2159	db_sync;
2160	});	3184	};
		3185	cf::cede_to_tick;
2161		3186
2162	sub db_dirty() {
2163	$dirty = 1;
2164	$idle->start;
2165	}	3187	{
		3188	my $faces = $facedata->{faceinfo};
2166		3189
2167	sub db_get($;$) {	3190	while (my ($face, $info) = each %$faces) {
2168	@_ >= 2	3191	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2169	? $DB->{$_[0]}{$_[1]}
2170	: ($DB->{$_[0]} ||= { })
2171	}
2172		3192
2173	sub db_put($$;$) {	3193	cf::face::set_visibility $idx, $info->{visibility};
2174	if (@_ >= 3) {	3194	cf::face::set_magicmap $idx, $info->{magicmap};
2175	$DB->{$_[0]}{$_[1]} = $_[2];	3195	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2176	} else {	3196	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2177	$DB->{$_[0]} = $_[1];
2178	}
2179	db_dirty;
2180	}
2181		3197
2182	cf::global->attach (	3198	cf::cede_to_tick;
2183	prio => 10000,
2184	on_cleanup => sub {
2185	db_sync;
2186	},	3199	}
2187	);
2188	}
2189		3200
2190	#############################################################################	3201	while (my ($face, $info) = each %$faces) {
2191	# the server's main()	3202	next unless $info->{smooth};
2192		3203
2193	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 {
2194	open my $fh, "<:utf8", cf::confdir . "/config"	3346	open my $fh, "<:utf8", "$CONFDIR/config"
2195	or return;	3347	or return;
2196		3348
2197	local $/;	3349	local $/;
2198	*CFG = YAML::Syck::Load <$fh>;	3350	*CFG = YAML::Load <$fh>;
2199		3351
2200	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3352	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2201		3353
2202	$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};
2203	$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};
…		…
2209	};	3361	};
2210	warn $@ if $@;	3362	warn $@ if $@;
2211	}	3363	}
2212	}	3364	}
2213		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
2214	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
2215	# we must not ever block the main coroutine	3400	# we must not ever block the main coroutine
2216	local $Coro::idle = sub {	3401	local $Coro::idle = sub {
2217	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#
2218	async { Event::one_event };	3403	(async {
		3404	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3405	EV::loop EV::LOOP_ONESHOT;
		3406	})->prio (Coro::PRIO_MAX);
2219	};	3407	};
2220		3408
2221	cfg_load;	3409	evthread_start IO::AIO::poll_fileno;
2222	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
2223	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
2224	Event::loop;	3437	EV::loop;
2225	}	3438	}
2226		3439
2227	#############################################################################	3440	#############################################################################
2228	# initialisation and cleanup	3441	# initialisation and cleanup
2229		3442
2230	# install some emergency cleanup handlers	3443	# install some emergency cleanup handlers
2231	BEGIN {	3444	BEGIN {
		3445	our %SIGWATCHER = ();
2232	for my $signal (qw(INT HUP TERM)) {	3446	for my $signal (qw(INT HUP TERM)) {
2233	Event->signal (	3447	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2234	data => WF_AUTOCANCEL,
2235	signal => $signal,
2236	cb => sub {
2237	cf::cleanup "SIG$signal";	3448	cf::cleanup "SIG$signal";
2238	},
2239	);	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
2240	}	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 };
2241	}	3537	}
2242		3538
2243	sub emergency_save() {	3539	sub emergency_save() {
2244	my $freeze_guard = cf::freeze_mainloop;	3540	my $freeze_guard = cf::freeze_mainloop;
2245		3541
2246	warn "enter emergency perl save\n";	3542	warn "emergency_perl_save: enter\n";
2247		3543
2248	cf::sync_job {	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
2249	# use a peculiar iteration method to avoid tripping on perl	3550	# use a peculiar iteration method to avoid tripping on perl
2250	# refcount bugs in for. also avoids problems with players	3551	# refcount bugs in for. also avoids problems with players
2251	# and maps saved/destroyed asynchronously.	3552	# and maps saved/destroyed asynchronously.
2252	warn "begin emergency player save\n";	3553	warn "emergency_perl_save: begin player save\n";
2253	for my $login (keys %cf::PLAYER) {	3554	for my $login (keys %cf::PLAYER) {
2254	my $pl = $cf::PLAYER{$login} or next;	3555	my $pl = $cf::PLAYER{$login} or next;
2255	$pl->valid or next;	3556	$pl->valid or next;
		3557	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2256	$pl->save;	3558	$pl->save;
2257	}	3559	}
2258	warn "end emergency player save\n";	3560	warn "emergency_perl_save: end player save\n";
2259		3561
2260	warn "begin emergency map save\n";	3562	warn "emergency_perl_save: begin map save\n";
2261	for my $path (keys %cf::MAP) {	3563	for my $path (keys %cf::MAP) {
2262	my $map = $cf::MAP{$path} or next;	3564	my $map = $cf::MAP{$path} or next;
2263	$map->valid or next;	3565	$map->valid or next;
2264	$map->save;	3566	$map->save;
2265	}	3567	}
2266	warn "end emergency map save\n";	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";
2267	};	3577	};
2268		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
2269	warn "leave emergency perl save\n";	3584	warn "emergency_perl_save: leave\n";
2270	}	3585	}
2271		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 $pkg\n";#d#
		3621	}
		3622
2272	sub reload() {	3623	sub do_reload_perl() {
2273	# can/must only be called in main	3624	# can/must only be called in main
2274	if ($Coro::current != $Coro::main) {	3625	if ($Coro::current != $Coro::main) {
2275	warn "can only reload from main coroutine\n";	3626	warn "can only reload from main coroutine";
2276	return;	3627	return;
2277	}	3628	}
2278		3629
		3630	return if $RELOAD++;
		3631
		3632	my $t1 = EV::time;
		3633
		3634	while ($RELOAD) {
2279	warn "reloading...";	3635	warn "reloading...";
2280		3636
2281	warn "freezing server";	3637	warn "entering sync_job";
2282	my $guard = freeze_mainloop;	3638
		3639	cf::sync_job {
		3640	cf::write_runtime_sync; # external watchdog should not bark
2283	cf::emergency_save;	3641	cf::emergency_save;
		3642	cf::write_runtime_sync; # external watchdog should not bark
2284		3643
2285	warn "sync database to disk";	3644	warn "syncing database to disk";
2286	cf::db_sync;	3645	BDB::db_env_txn_checkpoint $DB_ENV;
2287	IO::AIO::flush;
2288		3646
2289	eval {
2290	# 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
2291		3648
2292	warn "cancel all watchers";	3649	warn "flushing outstanding aio requests";
2293	for (Event::all_watchers) {	3650	while (IO::AIO::nreqs || BDB::nreqs) {
2294	$_->cancel if $_->data & WF_AUTOCANCEL;	3651	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2295	}
2296
2297	warn "cancel all extension coros";
2298	$_->cancel for values %EXT_CORO;
2299	%EXT_CORO = ();
2300
2301	warn "remove commands";
2302	%COMMAND = ();
2303
2304	warn "remove ext commands";
2305	%EXTCMD = ();
2306
2307	warn "unload/nuke all extensions";
2308	for my $pkg (@EXTS) {
2309	warn "... unloading $pkg";
2310
2311	if (my $cb = $pkg->can ("unload")) {
2312	eval {
2313	$cb->($pkg);
2314	1
2315	} or warn "$pkg unloaded, but with errors: $@";
2316	}	3652	}
2317		3653
		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) {
2318	warn "... nuking $pkg";	3667	warn "... unloading $pkg";
2319	Symbol::delete_package $pkg;
2320	}
2321		3668
2322	warn "unload all perl modules loaded from $LIBDIR";
2323	while (my ($k, $v) = each %INC) {
2324	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2325
2326	warn "removing <$k>";
2327	delete $INC{$k};
2328
2329	$k =~ s/\.pm$//;
2330	$k =~ s/\//::/g;
2331
2332	if (my $cb = $k->can ("unload_module")) {	3669	if (my $cb = $pkg->can ("unload")) {
		3670	eval {
2333	$cb->();	3671	$cb->($pkg);
		3672	1
		3673	} or warn "$pkg unloaded, but with errors: $@";
		3674	}
		3675
		3676	warn "... clearing $pkg";
		3677	clear_package $pkg;
2334	}	3678	}
2335		3679
2336	Symbol::delete_package $k;	3680	warn "unloading all perl modules loaded from $LIBDIR";
		3681	while (my ($k, $v) = each %INC) {
		3682	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		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 $k;
2337	}	3695	}
2338		3696
2339	warn "get rid of safe::, as good as possible";	3697	warn "getting rid of safe::, as good as possible";
2340	Symbol::delete_package "safe::$_"	3698	clear_package "safe::$_"
2341	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);
2342		3700
2343	warn "unload cf.pm \"a bit\"";	3701	warn "unloading cf.pm \"a bit\"";
2344	delete $INC{"cf.pm"};	3702	delete $INC{"cf.pm"};
		3703	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2345		3704
2346	# don't, removes xs symbols, too,	3705	# don't, removes xs symbols, too,
2347	# and global variables created in xs	3706	# and global variables created in xs
2348	#Symbol::delete_package __PACKAGE__;	3707	#clear_package __PACKAGE__;
2349		3708
		3709	warn "unload completed, starting to reload now";
		3710
2350	warn "reloading cf.pm";	3711	warn "reloading cf.pm";
2351	require cf;	3712	require cf;
2352	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3713	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2353		3714
2354	warn "load config and database again";	3715	warn "loading config and database again";
2355	cf::cfg_load;	3716	cf::reload_config;
2356	cf::db_load;
2357		3717
2358	warn "load extensions";	3718	warn "loading extensions";
2359	cf::load_extensions;	3719	cf::load_extensions;
2360		3720
		3721	if ($REATTACH_ON_RELOAD) {
2361	warn "reattach attachments to objects/players";	3722	warn "reattaching attachments to objects/players";
2362	_global_reattach;	3723	_global_reattach; # objects, sockets
2363	warn "reattach attachments to maps";	3724	warn "reattaching attachments to maps";
2364	reattach $_ for values %MAP;	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 $@;
		3738	cf::cleanup "error while reloading, exiting.";
		3739	};
		3740
		3741	warn "reloaded";
		3742	--$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 $RELOAD_WATCHER;
		3761	};
2365	};	3762	};
2366		3763	}
2367	if ($@) {
2368	warn $@;
2369	warn "error while reloading, exiting.";
2370	exit 1;
2371	}
2372
2373	warn "reloaded";
2374	};
2375		3764
2376	register_command "reload" => sub {	3765	register_command "reload" => sub {
2377	my ($who, $arg) = @_;	3766	my ($who, $arg) = @_;
2378		3767
2379	if ($who->flag (FLAG_WIZ)) {	3768	if ($who->flag (FLAG_WIZ)) {
2380	$who->message ("start of reload.");
2381	reload;
2382	$who->message ("end of reload.");	3769	$who->message ("reloading server.");
		3770	async {
		3771	$Coro::current->{desc} = "perl_reload";
		3772	reload_perl;
		3773	};
2383	}	3774	}
2384	};	3775	};
2385		3776
2386	unshift @INC, $LIBDIR;	3777	unshift @INC, $LIBDIR;
2387		3778
2388	$TICK_WATCHER = Event->timer (	3779	my $bug_warning = 0;
2389	reentrant => 0,
2390	prio => 0,
2391	at => $NEXT_TICK || $TICK,
2392	data => WF_AUTOCANCEL,
2393	cb => sub {
2394	$NOW = Event::time;
2395		3780
		3781	our @WAIT_FOR_TICK;
		3782	our @WAIT_FOR_TICK_BEGIN;
		3783
		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
2396	cf::server_tick; # one server iteration	3807	cf::server_tick; # one server iteration
2397	$RUNTIME += $TICK;
2398	$NEXT_TICK += $TICK;
2399		3808
2400	$WAIT_FOR_TICK->broadcast;	3809	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2401	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3810	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2402		3811	Coro::async_pool {
2403	# if we are delayed by four ticks or more, skip them all	3812	$Coro::current->{desc} = "runtime saver";
2404	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2405
2406	$TICK_WATCHER->at ($NEXT_TICK);
2407	$TICK_WATCHER->start;
2408	},
2409	);
2410
2411	IO::AIO::max_poll_time $TICK * 0.2;
2412
2413	$AIO_POLL_WATCHER = Event->io (
2414	fd => IO::AIO::poll_fileno,
2415	poll => 'r',
2416	prio => 5,
2417	data => WF_AUTOCANCEL,
2418	cb => \&IO::AIO::poll_cb,
2419	);
2420
2421	$WRITE_RUNTIME_WATCHER = Event->timer (
2422	data => WF_AUTOCANCEL,
2423	after => 0,
2424	interval => 10,
2425	cb => sub {
2426	(Coro::unblock_sub {
2427	write_runtime	3813	write_runtime_sync
2428	or warn "ERROR: unable to write runtime file: $!";	3814	or warn "ERROR: unable to write runtime file: $!";
2429	})->();	3815	};
2430	},	3816	}
2431	);	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;
2432		3931
2433	END { cf::emergency_save }	3932	END { cf::emergency_save }
2434		3933
2435	1	3934	1
2436		3935

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