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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.167 by root, Sat Jan 13 23:32:43 2007 UTC vs.
Revision 1.474 by root, Thu Jul 16 21:42:56 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
		76
		77	# strictly for debugging
		78	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
28		79
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	80	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		81
36	our %COMMAND = ();	82	our %COMMAND = ();
37	our %COMMAND_TIME = ();	83	our %COMMAND_TIME = ();
38		84
39	our @EXTS = (); # list of extension package names	85	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	86	our %EXTCMD = ();
		87	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	88	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	89	our %EXT_MAP = (); # pluggable maps
43		90
		91	our $RELOAD; # number of reloads so far, non-zero while in reload
44	our @EVENT;	92	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		93
47	our $TICK = MAX_TIME * 1e-6;	94	our $CONFDIR = confdir;
48	our $TICK_WATCHER;	95	our $DATADIR = datadir;
		96	our $LIBDIR = "$DATADIR/ext";
		97	our $PODDIR = "$DATADIR/pod";
		98	our $MAPDIR = "$DATADIR/" . mapdir;
		99	our $LOCALDIR = localdir;
		100	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		101	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		102	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		103	our $RANDOMDIR = "$LOCALDIR/random";
		104	our $BDBDIR = "$LOCALDIR/db";
		105	our $PIDFILE = "$LOCALDIR/pid";
		106	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		107
		108	our %RESOURCE;
		109
		110	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		111	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
49	our $NEXT_TICK;	112	our $NEXT_TICK;
50	our $NOW;	113	our $USE_FSYNC = 1; # use fsync to write maps - default on
		114
		115	our $BDB_DEADLOCK_WATCHER;
		116	our $BDB_CHECKPOINT_WATCHER;
		117	our $BDB_TRICKLE_WATCHER;
		118	our $DB_ENV;
		119
		120	our @EXTRA_MODULES = qw(pod mapscript);
51		121
52	our %CFG;	122	our %CFG;
53		123
54	our $UPTIME; $UPTIME ||= time;	124	our $UPTIME; $UPTIME ||= time;
55	our $RUNTIME;	125	our $RUNTIME;
		126	our $NOW;
56		127
57	our %PLAYER; # all users	128	our (%PLAYER, %PLAYER_LOADING); # all users
58	our %MAP; # all maps	129	our (%MAP, %MAP_LOADING ); # all maps
59	our $LINK_MAP; # the special {link} map, which is always available	130	our $LINK_MAP; # the special {link} map, which is always available
60	our $RANDOM_MAPS = cf::localdir . "/random";
61
62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
63	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
64		131
65	# used to convert map paths into valid unix filenames by replacing / by ∕	132	# used to convert map paths into valid unix filenames by replacing / by ∕
66	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	133	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
67		134
		135	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		136	our $LOADAVG; # same thing, but with alpha-smoothing
		137	our $JITTER; # average jitter
		138	our $TICK_START; # for load detecting purposes
		139
		140	our @POST_INIT;
		141
		142	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		143	our $REALLY_UNLOOP; # never set to true, please :)
		144
68	binmode STDOUT;	145	binmode STDOUT;
69	binmode STDERR;	146	binmode STDERR;
70		147
71	# read virtual server time, if available	148	# read virtual server time, if available
72	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	149	unless ($RUNTIME || !-e $RUNTIMEFILE) {
73	open my $fh, "<", cf::localdir . "/runtime"	150	open my $fh, "<", $RUNTIMEFILE
74	or die "unable to read runtime file: $!";	151	or die "unable to read $RUNTIMEFILE file: $!";
75	$RUNTIME = <$fh> + 0.;	152	$RUNTIME = <$fh> + 0.;
76	}	153	}
77		154
78	mkdir cf::localdir;	155	eval "sub TICK() { $TICK } 1" or die;
79	mkdir cf::localdir . "/" . cf::playerdir;	156
80	mkdir cf::localdir . "/" . cf::tmpdir;	157	mkdir $_
81	mkdir cf::localdir . "/" . cf::uniquedir;	158	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir $RANDOM_MAPS;
83		159
84	our $EMERGENCY_POSITION;	160	our $EMERGENCY_POSITION;
		161
		162	sub cf::map::normalise;
85		163
86	#############################################################################	164	#############################################################################
87		165
88	=head2 GLOBAL VARIABLES	166	=head2 GLOBAL VARIABLES
89		167
…		…
96	=item $cf::RUNTIME	174	=item $cf::RUNTIME
97		175
98	The time this server has run, starts at 0 and is increased by $cf::TICK on	176	The time this server has run, starts at 0 and is increased by $cf::TICK on
99	every server tick.	177	every server tick.
100		178
101	=item $cf::LIBDIR	179	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		180	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		181	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
102		182
103	The perl library directory, where extensions and cf-specific modules can	183	Various directories - "/etc", read-only install directory, perl-library
104	be found. It will be added to C<@INC> automatically.	184	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		185	unique-items directory, player file directory, random maps directory and
		186	database environment.
105		187
106	=item $cf::NOW	188	=item $cf::NOW
107		189
108	The time of the last (current) server tick.	190	The time of the last (current) server tick.
109		191
110	=item $cf::TICK	192	=item $cf::TICK
111		193
112	The interval between server ticks, in seconds.	194	The interval between server ticks, in seconds.
113		195
		196	=item $cf::LOADAVG
		197
		198	The current CPU load on the server (alpha-smoothed), as a value between 0
		199	(none) and 1 (overloaded), indicating how much time is spent on processing
		200	objects per tick. Healthy values are < 0.5.
		201
		202	=item $cf::LOAD
		203
		204	The raw value load value from the last tick.
		205
114	=item %cf::CFG	206	=item %cf::CFG
115		207
116	Configuration for the server, loaded from C</etc/crossfire/config>, or	208	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
117	from wherever your confdir points to.	209	from wherever your confdir points to.
118		210
119	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	211	=item cf::wait_for_tick, cf::wait_for_tick_begin
120		212
121	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	213	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
122	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	214	returns directly I<after> the tick processing (and consequently, can only wake one process
123	processing has been done. Call C<< ->wait >> on them to maximise the	215	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
124	window of cpu time available, or simply to synchronise to the server tick.	216
		217	=item @cf::INVOKE_RESULTS
		218
		219	This array contains the results of the last C<invoke ()> call. When
		220	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		221	that call.
125		222
126	=back	223	=back
127		224
128	=cut	225	=cut
129		226
130	BEGIN {	227	BEGIN {
131	*CORE::GLOBAL::warn = sub {	228	*CORE::GLOBAL::warn = sub {
132	my $msg = join "", @_;	229	my $msg = join "", @_;
133	utf8::encode $msg;
134		230
135	$msg .= "\n"	231	$msg .= "\n"
136	unless $msg =~ /\n$/;	232	unless $msg =~ /\n$/;
137		233
		234	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		235
138	LOG llevError, $msg;	236	LOG llevError, $msg;
139	};	237	};
140	}	238	}
		239
		240	$Coro::State::DIEHOOK = sub {
		241	return unless $^S eq 0; # "eq", not "=="
		242
		243	if ($Coro::current == $Coro::main) {#d#
		244	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		245	return;#d#
		246	}#d#
		247
		248	# kill coroutine otherwise
		249	warn Carp::longmess $_[0];
		250	Coro::terminate
		251	};
		252
		253	$SIG{__DIE__} = sub { }; #d#?
141		254
142	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	255	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
143	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	256	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
144	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	257	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
145	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	258	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
146	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	259	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		260	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
147	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	261	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
148		262
149	# we bless all objects into (empty) derived classes to force a method lookup	263	# we bless all objects into (empty) derived classes to force a method lookup
150	# within the Safe compartment.	264	# within the Safe compartment.
151	for my $pkg (qw(	265	for my $pkg (qw(
152	cf::global cf::attachable	266	cf::global cf::attachable
153	cf::object cf::object::player	267	cf::object cf::object::player
154	cf::client cf::player	268	cf::client cf::player
155	cf::arch cf::living	269	cf::arch cf::living
		270	cf::map cf::mapspace
156	cf::map cf::party cf::region	271	cf::party cf::region
157	)) {	272	)) {
158	no strict 'refs';
159	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	273	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
160	}	274	}
161		275
162	$Event::DIED = sub {	276	$EV::DIED = sub {
163	warn "error in event callback: @_";	277	warn "error in event callback: @_";
164	};	278	};
		279
		280	#############################################################################
165		281
166	=head2 UTILITY FUNCTIONS	282	=head2 UTILITY FUNCTIONS
167		283
168	=over 4	284	=over 4
169		285
…		…
188	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	304	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
189	$d	305	$d
190	} || "[unable to dump $_[0]: '$@']";	306	} || "[unable to dump $_[0]: '$@']";
191	}	307	}
192		308
193	use JSON::Syck (); # TODO# replace by JSON::PC once working
194
195	=item $ref = cf::from_json $json	309	=item $ref = cf::decode_json $json
196		310
197	Converts a JSON string into the corresponding perl data structure.	311	Converts a JSON string into the corresponding perl data structure.
198		312
199	=cut
200
201	sub from_json($) {
202	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203	JSON::Syck::Load $_[0]
204	}
205
206	=item $json = cf::to_json $ref	313	=item $json = cf::encode_json $ref
207		314
208	Converts a perl data structure into its JSON representation.	315	Converts a perl data structure into its JSON representation.
209		316
210	=cut	317	=cut
211		318
212	sub to_json($) {	319	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	320
214	JSON::Syck::Dump $_[0]	321	sub encode_json($) { $json_coder->encode ($_[0]) }
		322	sub decode_json($) { $json_coder->decode ($_[0]) }
		323
		324	=item cf::post_init { BLOCK }
		325
		326	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		327	but I<before> the server starts ticking again.
		328
		329	The cdoeblock will have a single boolean argument to indicate whether this
		330	is a reload or not.
		331
		332	=cut
		333
		334	sub post_init(&) {
		335	push @POST_INIT, shift;
215	}	336	}
216		337
217	=item cf::lock_wait $string	338	=item cf::lock_wait $string
218		339
219	Wait until the given lock is available. See cf::lock_acquire.	340	Wait until the given lock is available. See cf::lock_acquire.
220		341
221	=item my $lock = cf::lock_acquire $string	342	=item my $lock = cf::lock_acquire $string
222		343
223	Wait until the given lock is available and then acquires it and returns	344	Wait until the given lock is available and then acquires it and returns
224	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	345	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
225	for example when the coroutine gets canceled), the lock is automatically	346	for example when the coroutine gets canceled), the lock is automatically
226	returned.	347	returned.
227		348
		349	Locks are *not* recursive, locking from the same coro twice results in a
		350	deadlocked coro.
		351
228	Lock names should begin with a unique identifier (for example, cf::map::find	352	Lock names should begin with a unique identifier (for example, cf::map::find
229	uses map_find and cf::map::load uses map_load).	353	uses map_find and cf::map::load uses map_load).
230		354
231	=cut	355	=item $locked = cf::lock_active $string
232		356
233	our %LOCK;	357	Return true if the lock is currently active, i.e. somebody has locked it.
		358
		359	=cut
		360
		361	our $LOCKS = new Coro::SemaphoreSet;
234		362
235	sub lock_wait($) {	363	sub lock_wait($) {
236	my ($key) = @_;	364	$LOCKS->wait ($_[0]);
237
238	# wait for lock, if any
239	while ($LOCK{$key}) {
240	push @{ $LOCK{$key} }, $Coro::current;
241	Coro::schedule;
242	}
243	}	365	}
244		366
245	sub lock_acquire($) {	367	sub lock_acquire($) {
246	my ($key) = @_;	368	$LOCKS->guard ($_[0])
		369	}
247		370
248	# wait, to be sure we are not locked	371	sub lock_active($) {
249	lock_wait $key;	372	$LOCKS->count ($_[0]) < 1
250
251	$LOCK{$key} = [];
252
253	Coro::guard {
254	# wake up all waiters, to be on the safe side
255	$_->ready for @{ delete $LOCK{$key} };
256	}
257	}	373	}
258		374
259	sub freeze_mainloop {	375	sub freeze_mainloop {
260	return unless $TICK_WATCHER->is_active;	376	tick_inhibit_inc;
261		377
262	my $guard = Coro::guard { $TICK_WATCHER->start };	378	&Guard::guard (\&tick_inhibit_dec);
263	$TICK_WATCHER->stop;	379	}
264	$guard	380
		381	=item cf::periodic $interval, $cb
		382
		383	Like EV::periodic, but randomly selects a starting point so that the actions
		384	get spread over timer.
		385
		386	=cut
		387
		388	sub periodic($$) {
		389	my ($interval, $cb) = @_;
		390
		391	my $start = rand List::Util::min 180, $interval;
		392
		393	EV::periodic $start, $interval, 0, $cb
		394	}
		395
		396	=item cf::get_slot $time[, $priority[, $name]]
		397
		398	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		399	This call blocks and returns only when you have at least C<$time> seconds
		400	of cpu time till the next tick. The slot is only valid till the next cede.
		401
		402	The optional C<$name> can be used to identify the job to run. It might be
		403	used for statistical purposes and should identify the same time-class.
		404
		405	Useful for short background jobs.
		406
		407	=cut
		408
		409	our @SLOT_QUEUE;
		410	our $SLOT_QUEUE;
		411
		412	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		413	$SLOT_QUEUE = Coro::async {
		414	$Coro::current->desc ("timeslot manager");
		415
		416	my $signal = new Coro::Signal;
		417
		418	while () {
		419	next_job:
		420	my $avail = cf::till_tick;
		421	if ($avail > 0.01) {
		422	for (0 .. $#SLOT_QUEUE) {
		423	if ($SLOT_QUEUE[$_][0] < $avail) {
		424	my $job = splice @SLOT_QUEUE, $_, 1, ();
		425	$job->[2]->send;
		426	Coro::cede;
		427	goto next_job;
		428	}
		429	}
		430	}
		431
		432	if (@SLOT_QUEUE) {
		433	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		434	push @cf::WAIT_FOR_TICK, $signal;
		435	$signal->wait;
		436	} else {
		437	Coro::schedule;
		438	}
		439	}
		440	};
		441
		442	sub get_slot($;$$) {
		443	return if tick_inhibit || $Coro::current == $Coro::main;
		444
		445	my ($time, $pri, $name) = @_;
		446
		447	$time = $TICK * .6 if $time > $TICK * .6;
		448	my $sig = new Coro::Signal;
		449
		450	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		451	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		452	$SLOT_QUEUE->ready;
		453	$sig->wait;
265	}	454	}
266		455
267	=item cf::async { BLOCK }	456	=item cf::async { BLOCK }
268		457
269	Currently the same as Coro::async_pool, meaning you cannot use	458	Currently the same as Coro::async_pool, meaning you cannot use
…		…
274		463
275	BEGIN { *async = \&Coro::async_pool }	464	BEGIN { *async = \&Coro::async_pool }
276		465
277	=item cf::sync_job { BLOCK }	466	=item cf::sync_job { BLOCK }
278		467
279	The design of crossfire+ requires that the main coro ($Coro::main) is	468	The design of Deliantra requires that the main coroutine ($Coro::main)
280	always able to handle events or runnable, as crossfire+ is only partly	469	is always able to handle events or runnable, as Deliantra is only
281	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	470	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		471	acceptable.
282		472
283	If it must be done, put the blocking parts into C<sync_job>. This will run	473	If it must be done, put the blocking parts into C<sync_job>. This will run
284	the given BLOCK in another coroutine while waiting for the result. The	474	the given BLOCK in another coroutine while waiting for the result. The
285	server will be frozen during this time, so the block should either finish	475	server will be frozen during this time, so the block should either finish
286	fast or be very important.	476	fast or be very important.
…		…
289		479
290	sub sync_job(&) {	480	sub sync_job(&) {
291	my ($job) = @_;	481	my ($job) = @_;
292		482
293	if ($Coro::current == $Coro::main) {	483	if ($Coro::current == $Coro::main) {
		484	my $time = EV::time;
		485
294	# this is the main coro, too bad, we have to block	486	# this is the main coro, too bad, we have to block
295	# till the operation succeeds, freezing the server :/	487	# till the operation succeeds, freezing the server :/
296		488
297	# TODO: use suspend/resume instead	489	LOG llevError, Carp::longmess "sync job";#d#
298	# (but this is cancel-safe)	490
299	my $freeze_guard = freeze_mainloop;	491	my $freeze_guard = freeze_mainloop;
300		492
301	my $busy = 1;	493	my $busy = 1;
302	my @res;	494	my @res;
303		495
304	(async {	496	(async {
		497	$Coro::current->desc ("sync job coro");
305	@res = eval { $job->() };	498	@res = eval { $job->() };
306	warn $@ if $@;	499	warn $@ if $@;
307	undef $busy;	500	undef $busy;
308	})->prio (Coro::PRIO_MAX);	501	})->prio (Coro::PRIO_MAX);
309		502
310	while ($busy) {	503	while ($busy) {
311	Coro::cede or Event::one_event;	504	if (Coro::nready) {
		505	Coro::cede_notself;
		506	} else {
		507	EV::loop EV::LOOP_ONESHOT;
312	}	508	}
		509	}
		510
		511	my $time = EV::time - $time;
		512
		513	$TICK_START += $time; # do not account sync jobs to server load
313		514
314	wantarray ? @res : $res[0]	515	wantarray ? @res : $res[0]
315	} else {	516	} else {
316	# we are in another coroutine, how wonderful, everything just works	517	# we are in another coroutine, how wonderful, everything just works
317		518
…		…
337	$EXT_CORO{$coro+0} = $coro;	538	$EXT_CORO{$coro+0} = $coro;
338		539
339	$coro	540	$coro
340	}	541	}
341		542
342	sub write_runtime {	543	=item fork_call { }, $args
343	return unless $TICK_WATCHER->is_active;
344		544
345	my $runtime = cf::localdir . "/runtime";	545	Executes the given code block with the given arguments in a seperate
		546	process, returning the results. Everything must be serialisable with
		547	Coro::Storable. May, of course, block. Note that the executed sub may
		548	never block itself or use any form of event handling.
346		549
347	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	550	=cut
348	or return;
349		551
350	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	552	sub fork_call(&@) {
351	(aio_write $fh, 0, (length $value), $value, 0) <= 0	553	my ($cb, @args) = @_;
352	and return;
353		554
354	aio_fsync $fh	555	# we seemingly have to make a local copy of the whole thing,
355	and return;	556	# otherwise perl prematurely frees the stuff :/
		557	# TODO: investigate and fix (likely this will be rather laborious)
356		558
357	close $fh	559	my @res = Coro::Util::fork_eval {
358	or return;	560	reset_signals;
		561	&$cb
		562	}, @args;
359		563
360	aio_rename "$runtime~", $runtime	564	wantarray ? @res : $res[-1]
361	and return;	565	}
362		566
		567	=item $coin = coin_from_name $name
		568
		569	=cut
		570
		571	our %coin_alias = (
		572	"silver" => "silvercoin",
		573	"silvercoin" => "silvercoin",
		574	"silvercoins" => "silvercoin",
		575	"gold" => "goldcoin",
		576	"goldcoin" => "goldcoin",
		577	"goldcoins" => "goldcoin",
		578	"platinum" => "platinacoin",
		579	"platinumcoin" => "platinacoin",
		580	"platinumcoins" => "platinacoin",
		581	"platina" => "platinacoin",
		582	"platinacoin" => "platinacoin",
		583	"platinacoins" => "platinacoin",
		584	"royalty" => "royalty",
		585	"royalties" => "royalty",
		586	);
		587
		588	sub coin_from_name($) {
		589	$coin_alias{$_[0]}
		590	? cf::arch::find $coin_alias{$_[0]}
		591	: undef
		592	}
		593
		594	=item $value = cf::db_get $family => $key
		595
		596	Returns a single value from the environment database.
		597
		598	=item cf::db_put $family => $key => $value
		599
		600	Stores the given C<$value> in the family. It can currently store binary
		601	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		602
		603	=item $db = cf::db_table "name"
		604
		605	Create and/or open a new database table. The string must not be "db" and must be unique
		606	within each server.
		607
		608	=cut
		609
		610	sub db_table($) {
		611	my ($name) = @_;
		612	my $db = BDB::db_create $DB_ENV;
		613
		614	eval {
		615	$db->set_flags (BDB::CHKSUM);
		616
		617	utf8::encode $name;
		618	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		619	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		620	cf::cleanup "db_open(db): $!" if $!;
		621	};
		622	cf::cleanup "db_open(db): $@" if $@;
		623
		624	$db
		625	}
		626
		627	our $DB;
		628
		629	sub db_init {
		630	cf::sync_job {
		631	$DB ||= db_table "db";
		632	};
		633	}
		634
		635	sub db_get($$) {
		636	my $key = "$_[0]/$_[1]";
		637
		638	cf::sync_job {
		639	BDB::db_get $DB, undef, $key, my $data;
		640
		641	$! ? ()
		642	: $data
363	1	643	}
		644	}
		645
		646	sub db_put($$$) {
		647	BDB::dbreq_pri 4;
		648	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		649	}
		650
		651	=item cf::cache $id => [$paths...], $processversion => $process
		652
		653	Generic caching function that returns the value of the resource $id,
		654	caching and regenerating as required.
		655
		656	This function can block.
		657
		658	=cut
		659
		660	sub cache {
		661	my ($id, $src, $processversion, $process) = @_;
		662
		663	my $meta =
		664	join "\x00",
		665	$processversion,
		666	map {
		667	aio_stat $_
		668	and Carp::croak "$_: $!";
		669
		670	($_, (stat _)[7,9])
		671	} @$src;
		672
		673	my $dbmeta = db_get cache => "$id/meta";
		674	if ($dbmeta ne $meta) {
		675	# changed, we may need to process
		676
		677	my @data;
		678	my $md5;
		679
		680	for (0 .. $#$src) {
		681	0 <= aio_load $src->[$_], $data[$_]
		682	or Carp::croak "$src->[$_]: $!";
		683	}
		684
		685	# if processing is expensive, check
		686	# checksum first
		687	if (1) {
		688	$md5 =
		689	join "\x00",
		690	$processversion,
		691	map {
		692	cf::cede_to_tick;
		693	($src->[$_], Digest::MD5::md5_hex $data[$_])
		694	} 0.. $#$src;
		695
		696
		697	my $dbmd5 = db_get cache => "$id/md5";
		698	if ($dbmd5 eq $md5) {
		699	db_put cache => "$id/meta", $meta;
		700
		701	return db_get cache => "$id/data";
		702	}
		703	}
		704
		705	my $t1 = Time::HiRes::time;
		706	my $data = $process->(\@data);
		707	my $t2 = Time::HiRes::time;
		708
		709	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		710
		711	db_put cache => "$id/data", $data;
		712	db_put cache => "$id/md5" , $md5;
		713	db_put cache => "$id/meta", $meta;
		714
		715	return $data;
		716	}
		717
		718	db_get cache => "$id/data"
		719	}
		720
		721	=item cf::datalog type => key => value, ...
		722
		723	Log a datalog packet of the given type with the given key-value pairs.
		724
		725	=cut
		726
		727	sub datalog($@) {
		728	my ($type, %kv) = @_;
		729	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
364	}	730	}
365		731
366	=back	732	=back
367		733
368	=cut	734	=cut
369		735
370	#############################################################################	736	#############################################################################
371		737
372	=head2 ATTACHABLE OBJECTS	738	=head2 ATTACHABLE OBJECTS
373		739
374	Many objects in crossfire are so-called attachable objects. That means you can	740	Many objects in deliantra are so-called attachable objects. That means you can
375	attach callbacks/event handlers (a collection of which is called an "attachment")	741	attach callbacks/event handlers (a collection of which is called an "attachment")
376	to it. All such attachable objects support the following methods.	742	to it. All such attachable objects support the following methods.
377		743
378	In the following description, CLASS can be any of C<global>, C<object>	744	In the following description, CLASS can be any of C<global>, C<object>
379	C<player>, C<client> or C<map> (i.e. the attachable objects in	745	C<player>, C<client> or C<map> (i.e. the attachable objects in
380	crossfire+).	746	Deliantra).
381		747
382	=over 4	748	=over 4
383		749
384	=item $attachable->attach ($attachment, key => $value...)	750	=item $attachable->attach ($attachment, key => $value...)
385		751
…		…
429	=item cf::CLASS::attachment $name, ...	795	=item cf::CLASS::attachment $name, ...
430		796
431	Register an attachment by C<$name> through which attachable objects of the	797	Register an attachment by C<$name> through which attachable objects of the
432	given CLASS can refer to this attachment.	798	given CLASS can refer to this attachment.
433		799
434	Some classes such as crossfire maps and objects can specify attachments	800	Some classes such as deliantra maps and objects can specify attachments
435	that are attached at load/instantiate time, thus the need for a name.	801	that are attached at load/instantiate time, thus the need for a name.
436		802
437	These calls expect any number of the following handler/hook descriptions:	803	These calls expect any number of the following handler/hook descriptions:
438		804
439	=over 4	805	=over 4
…		…
499	our @CB_TYPE = (); # registry for type (cf-object class) based events	865	our @CB_TYPE = (); # registry for type (cf-object class) based events
500	our @CB_MAP = ();	866	our @CB_MAP = ();
501		867
502	my %attachment;	868	my %attachment;
503		869
		870	sub cf::attachable::thawer_merge {
		871	# simply override everything except _meta
		872	local $_[0]{_meta};
		873	%{$_[0]} = %{$_[1]};
		874	}
		875
504	sub _attach_cb($$$$) {	876	sub _attach_cb($$$$) {
505	my ($registry, $event, $prio, $cb) = @_;	877	my ($registry, $event, $prio, $cb) = @_;
506		878
507	use sort 'stable';	879	use sort 'stable';
508		880
…		…
542	$registry = $CB_TYPE[$object_type] ||= [];	914	$registry = $CB_TYPE[$object_type] ||= [];
543		915
544	} elsif ($type eq "subtype") {	916	} elsif ($type eq "subtype") {
545	defined $object_type or Carp::croak "subtype specified without type";	917	defined $object_type or Carp::croak "subtype specified without type";
546	my $object_subtype = shift @arg;	918	my $object_subtype = shift @arg;
547	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	919	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
548		920
549	} elsif ($type eq "package") {	921	} elsif ($type eq "package") {
550	my $pkg = shift @arg;	922	my $pkg = shift @arg;
551		923
552	while (my ($name, $id) = each %cb_id) {	924	while (my ($name, $id) = each %cb_id) {
…		…
581	_attach $registry, $klass, @attach;	953	_attach $registry, $klass, @attach;
582	}	954	}
583		955
584	$obj->{$name} = \%arg;	956	$obj->{$name} = \%arg;
585	} else {	957	} else {
586	warn "object uses attachment '$name' that is not available, postponing.\n";	958	warn "object uses attachment '$name' which is not available, postponing.\n";
587	}	959	}
588		960
589	$obj->{_attachment}{$name} = undef;	961	$obj->{_attachment}{$name} = undef;
590	}	962	}
591		963
…		…
593	if (ref $_[0]) {	965	if (ref $_[0]) {
594	_object_attach @_;	966	_object_attach @_;
595	} else {	967	} else {
596	_attach shift->_attach_registry, @_;	968	_attach shift->_attach_registry, @_;
597	}	969	}
		970	_recalc_want;
598	};	971	};
599		972
600	# all those should be optimised	973	# all those should be optimised
601	sub cf::attachable::detach {	974	sub cf::attachable::detach {
602	my ($obj, $name) = @_;	975	my ($obj, $name) = @_;
…		…
605	delete $obj->{_attachment}{$name};	978	delete $obj->{_attachment}{$name};
606	reattach ($obj);	979	reattach ($obj);
607	} else {	980	} else {
608	Carp::croak "cannot, currently, detach class attachments";	981	Carp::croak "cannot, currently, detach class attachments";
609	}	982	}
		983	_recalc_want;
610	};	984	};
611		985
612	sub cf::attachable::attached {	986	sub cf::attachable::attached {
613	my ($obj, $name) = @_;	987	my ($obj, $name) = @_;
614		988
…		…
629	";	1003	";
630	die if $@;	1004	die if $@;
631	}	1005	}
632		1006
633	our $override;	1007	our $override;
634	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1008	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
635		1009
636	sub override {	1010	sub override {
637	$override = 1;	1011	$override = 1;
638	@invoke_results = ();	1012	@INVOKE_RESULTS = (@_);
639	}	1013	}
640		1014
641	sub do_invoke {	1015	sub do_invoke {
642	my $event = shift;	1016	my $event = shift;
643	my $callbacks = shift;	1017	my $callbacks = shift;
644		1018
645	@invoke_results = ();	1019	@INVOKE_RESULTS = ();
646		1020
647	local $override;	1021	local $override;
648		1022
649	for (@$callbacks) {	1023	for (@$callbacks) {
650	eval { &{$_->[1]} };	1024	eval { &{$_->[1]} };
…		…
659	}	1033	}
660		1034
661	0	1035	0
662	}	1036	}
663		1037
664	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1038	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
665		1039
666	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1040	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
667		1041
668	Generate an object-specific event with the given arguments.	1042	Generate an object-specific event with the given arguments.
669		1043
670	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1044	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
671	removed in future versions), and there is no public API to access override	1045	removed in future versions), and there is no public API to access override
672	results (if you must, access C<@cf::invoke_results> directly).	1046	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
673		1047
674	=back	1048	=back
675		1049
676	=cut	1050	=cut
677		1051
678	#############################################################################	1052	#############################################################################
679	# object support	1053	# object support
		1054
		1055	sub _object_equal($$);
		1056	sub _object_equal($$) {
		1057	my ($a, $b) = @_;
		1058
		1059	return 0 unless (ref $a) eq (ref $b);
		1060
		1061	if ("HASH" eq ref $a) {
		1062	my @ka = keys %$a;
		1063	my @kb = keys %$b;
		1064
		1065	return 0 if @ka != @kb;
		1066
		1067	for (0 .. $#ka) {
		1068	return 0 unless $ka[$_] eq $kb[$_];
		1069	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1070	}
		1071
		1072	} elsif ("ARRAY" eq ref $a) {
		1073
		1074	return 0 if @$a != @$b;
		1075
		1076	for (0 .. $#$a) {
		1077	return 0 unless _object_equal $a->[$_], $b->[$_];
		1078	}
		1079
		1080	} elsif ($a ne $b) {
		1081	return 0;
		1082	}
		1083
		1084	1
		1085	}
		1086
		1087	our $SLOW_MERGES;#d#
		1088	sub _can_merge {
		1089	my ($ob1, $ob2) = @_;
		1090
		1091	++$SLOW_MERGES;#d#
		1092
		1093	# we do the slow way here
		1094	return _object_equal $ob1, $ob2
		1095	}
680		1096
681	sub reattach {	1097	sub reattach {
682	# basically do the same as instantiate, without calling instantiate	1098	# basically do the same as instantiate, without calling instantiate
683	my ($obj) = @_;	1099	my ($obj) = @_;
		1100
		1101	# no longer needed after getting rid of delete_package?
		1102	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
684		1103
685	my $registry = $obj->registry;	1104	my $registry = $obj->registry;
686		1105
687	@$registry = ();	1106	@$registry = ();
688		1107
…		…
703	cf::attachable->attach (	1122	cf::attachable->attach (
704	prio => -1000000,	1123	prio => -1000000,
705	on_instantiate => sub {	1124	on_instantiate => sub {
706	my ($obj, $data) = @_;	1125	my ($obj, $data) = @_;
707		1126
708	$data = from_json $data;	1127	$data = decode_json $data;
709		1128
710	for (@$data) {	1129	for (@$data) {
711	my ($name, $args) = @$_;	1130	my ($name, $args) = @$_;
712		1131
713	$obj->attach ($name, %{$args || {} });	1132	$obj->attach ($name, %{$args || {} });
…		…
729	sub object_freezer_save {	1148	sub object_freezer_save {
730	my ($filename, $rdata, $objs) = @_;	1149	my ($filename, $rdata, $objs) = @_;
731		1150
732	sync_job {	1151	sync_job {
733	if (length $$rdata) {	1152	if (length $$rdata) {
		1153	utf8::decode (my $decname = $filename);
734	warn sprintf "saving %s (%d,%d)\n",	1154	warn sprintf "saving %s (%d,%d)\n",
735	$filename, length $$rdata, scalar @$objs;	1155	$decname, length $$rdata, scalar @$objs;
736		1156
737	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1157	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
738	chmod SAVE_MODE, $fh;	1158	aio_chmod $fh, SAVE_MODE;
739	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1159	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
		1160	if ($cf::USE_FSYNC) {
		1161	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
740	aio_fsync $fh;	1162	aio_fsync $fh;
		1163	}
741	close $fh;	1164	aio_close $fh;
742		1165
743	if (@$objs) {	1166	if (@$objs) {
744	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1167	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
745	chmod SAVE_MODE, $fh;	1168	aio_chmod $fh, SAVE_MODE;
746	my $data = Storable::nfreeze { version => 1, objs => $objs };	1169	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
747	aio_write $fh, 0, (length $data), $data, 0;	1170	aio_write $fh, 0, (length $data), $data, 0;
		1171	if ($cf::USE_FSYNC) {
		1172	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
748	aio_fsync $fh;	1173	aio_fsync $fh;
		1174	}
749	close $fh;	1175	aio_close $fh;
750	aio_rename "$filename.pst~", "$filename.pst";	1176	aio_rename "$filename.pst~", "$filename.pst";
751	}	1177	}
752	} else {	1178	} else {
753	aio_unlink "$filename.pst";	1179	aio_unlink "$filename.pst";
754	}	1180	}
755		1181
756	aio_rename "$filename~", $filename;	1182	aio_rename "$filename~", $filename;
		1183
		1184	$filename =~ s%/[^/]+$%%;
		1185	aio_pathsync $filename if $cf::USE_FSYNC;
757	} else {	1186	} else {
758	warn "FATAL: $filename~: $!\n";	1187	warn "unable to save objects: $filename~: $!\n";
759	}	1188	}
760	} else {	1189	} else {
761	aio_unlink $filename;	1190	aio_unlink $filename;
762	aio_unlink "$filename.pst";	1191	aio_unlink "$filename.pst";
763	}	1192	}
764	}	1193	};
765	}	1194	}
766		1195
767	sub object_freezer_as_string {	1196	sub object_freezer_as_string {
768	my ($rdata, $objs) = @_;	1197	my ($rdata, $objs) = @_;
769		1198
…		…
781	or return;	1210	or return;
782		1211
783	unless (aio_stat "$filename.pst") {	1212	unless (aio_stat "$filename.pst") {
784	(aio_load "$filename.pst", $av) >= 0	1213	(aio_load "$filename.pst", $av) >= 0
785	or return;	1214	or return;
		1215
786	$av = eval { (Storable::thaw $av)->{objs} };	1216	my $st = eval { Coro::Storable::thaw $av };
		1217	$av = $st->{objs};
787	}	1218	}
788		1219
		1220	utf8::decode (my $decname = $filename);
789	warn sprintf "loading %s (%d)\n",	1221	warn sprintf "loading %s (%d,%d)\n",
790	$filename, length $data, scalar @{$av || []};#d#	1222	$decname, length $data, scalar @{$av || []};
		1223
791	return ($data, $av);	1224	($data, $av)
792	}	1225	}
		1226
		1227	=head2 COMMAND CALLBACKS
		1228
		1229	=over 4
		1230
		1231	=cut
793		1232
794	#############################################################################	1233	#############################################################################
795	# command handling &c	1234	# command handling &c
796		1235
797	=item cf::register_command $name => \&callback($ob,$args);	1236	=item cf::register_command $name => \&callback($ob,$args);
…		…
810	push @{ $COMMAND{$name} }, [$caller, $cb];	1249	push @{ $COMMAND{$name} }, [$caller, $cb];
811	}	1250	}
812		1251
813	=item cf::register_extcmd $name => \&callback($pl,$packet);	1252	=item cf::register_extcmd $name => \&callback($pl,$packet);
814		1253
815	Register a callbackf ro execution when the client sends an extcmd packet.	1254	Register a callback for execution when the client sends an (synchronous)
		1255	extcmd packet. Ext commands will be processed in the order they are
		1256	received by the server, like other user commands. The first argument is
		1257	the logged-in player. Ext commands can only be processed after a player
		1258	has logged in successfully.
816		1259
817	If the callback returns something, it is sent back as if reply was being	1260	If the callback returns something, it is sent back as if reply was being
818	called.	1261	called.
819		1262
		1263	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1264
		1265	Register a callback for execution when the client sends an (asynchronous)
		1266	exticmd packet. Exti commands are processed by the server as soon as they
		1267	are received, i.e. out of order w.r.t. other commands. The first argument
		1268	is a client socket. Exti commands can be received anytime, even before
		1269	log-in.
		1270
		1271	If the callback returns something, it is sent back as if reply was being
		1272	called.
		1273
820	=cut	1274	=cut
821		1275
822	sub register_extcmd {	1276	sub register_extcmd {
823	my ($name, $cb) = @_;	1277	my ($name, $cb) = @_;
824		1278
825	$EXTCMD{$name} = $cb;	1279	$EXTCMD{$name} = $cb;
826	}	1280	}
		1281
		1282	sub register_exticmd {
		1283	my ($name, $cb) = @_;
		1284
		1285	$EXTICMD{$name} = $cb;
		1286	}
		1287
		1288	use File::Glob ();
827		1289
828	cf::player->attach (	1290	cf::player->attach (
829	on_command => sub {	1291	on_command => sub {
830	my ($pl, $name, $params) = @_;	1292	my ($pl, $name, $params) = @_;
831		1293
…		…
839	cf::override;	1301	cf::override;
840	},	1302	},
841	on_extcmd => sub {	1303	on_extcmd => sub {
842	my ($pl, $buf) = @_;	1304	my ($pl, $buf) = @_;
843		1305
844	my $msg = eval { from_json $buf };	1306	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
845		1307
846	if (ref $msg) {	1308	if (ref $msg) {
		1309	my ($type, $reply, @payload) =
		1310	"ARRAY" eq ref $msg
		1311	? @$msg
		1312	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1313
		1314	my @reply;
		1315
847	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1316	if (my $cb = $EXTCMD{$type}) {
848	if (my %reply = $cb->($pl, $msg)) {	1317	@reply = $cb->($pl, @payload);
849	$pl->ext_reply ($msg->{msgid}, %reply);
850	}
851	}	1318	}
		1319
		1320	$pl->ext_reply ($reply, @reply)
		1321	if $reply;
		1322
852	} else {	1323	} else {
853	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1324	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
854	}	1325	}
855		1326
856	cf::override;	1327	cf::override;
857	},	1328	},
858	);	1329	);
859		1330
		1331	# "readahead" all extensions
860	sub load_extension {	1332	sub cache_extensions {
861	my ($path) = @_;	1333	my $grp = IO::AIO::aio_group;
862		1334
863	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1335	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
864	my $base = $1;	1336	for (grep /\.ext$/, @{$_[0]}) {
865	my $pkg = $1;	1337	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
866	$pkg =~ s/[^[:word:]]/_/g;
867	$pkg = "ext::$pkg";
868
869	warn "... loading '$path' into '$pkg'\n";
870
871	open my $fh, "<:utf8", $path
872	or die "$path: $!";
873
874	my $source =
875	"package $pkg; use strict; use utf8;\n"
876	. "#line 1 \"$path\"\n{\n"
877	. (do { local $/; <$fh> })
878	. "\n};\n1";
879
880	unless (eval $source) {
881	my $msg = $@ ? "$path: $@\n"
882	: "extension disabled.\n";
883	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
884	warn $@;
885	warn "mandatory extension failed to load, exiting.\n";
886	exit 1;
887	}	1338	}
888	die $@;
889	}	1339	};
890		1340
891	push @EXTS, $pkg;	1341	$grp
892	}	1342	}
893		1343
894	sub load_extensions {	1344	sub load_extensions {
		1345	cf::sync_job {
		1346	my %todo;
		1347
895	for my $ext (<$LIBDIR/*.ext>) {	1348	for my $path (<$LIBDIR/*.ext>) {
896	next unless -r $ext;	1349	next unless -r $path;
897	eval {	1350
898	load_extension $ext;	1351	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1352	my $base = $1;
		1353	my $pkg = $1;
		1354	$pkg =~ s/[^[:word:]]/_/g;
		1355	$pkg = "ext::$pkg";
		1356
		1357	open my $fh, "<:utf8", $path
		1358	or die "$path: $!";
		1359
		1360	my $source = do { local $/; <$fh> };
		1361
		1362	my %ext = (
		1363	path => $path,
		1364	base => $base,
		1365	pkg => $pkg,
		1366	);
		1367
		1368	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1369	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1370
		1371	$ext{source} =
		1372	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1373	. "#line 1 \"$path\"\n{\n"
		1374	. $source
		1375	. "\n};\n1";
		1376
		1377	$todo{$base} = \%ext;
		1378	}
		1379
		1380	my %done;
		1381	while (%todo) {
		1382	my $progress;
		1383
		1384	while (my ($k, $v) = each %todo) {
		1385	for (split /,\s*/, $v->{meta}{depends}) {
		1386	goto skip
		1387	unless exists $done{$_};
		1388	}
		1389
		1390	warn "... loading '$k' into '$v->{pkg}'\n";
		1391
		1392	unless (eval $v->{source}) {
		1393	my $msg = $@ ? "$v->{path}: $@\n"
		1394	: "$v->{base}: extension inactive.\n";
		1395
		1396	if (exists $v->{meta}{mandatory}) {
		1397	warn $msg;
		1398	cf::cleanup "mandatory extension failed to load, exiting.";
		1399	}
		1400
		1401	warn $msg;
		1402	}
		1403
		1404	$done{$k} = delete $todo{$k};
		1405	push @EXTS, $v->{pkg};
		1406	$progress = 1;
899	1	1407	}
900	} or warn "$ext not loaded: $@";	1408
		1409	skip:
		1410	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1411	unless $progress;
		1412	}
901	}	1413	};
902	}	1414	}
903		1415
904	#############################################################################	1416	#############################################################################
905		1417
		1418	=back
		1419
906	=head2 CORE EXTENSIONS	1420	=head2 CORE EXTENSIONS
907		1421
908	Functions and methods that extend core crossfire objects.	1422	Functions and methods that extend core deliantra objects.
909		1423
910	=cut	1424	=cut
911		1425
912	package cf::player;	1426	package cf::player;
913		1427
…		…
915		1429
916	=head3 cf::player	1430	=head3 cf::player
917		1431
918	=over 4	1432	=over 4
919		1433
		1434	=item cf::player::num_playing
		1435
		1436	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1437
		1438	=cut
		1439
		1440	sub num_playing {
		1441	scalar grep
		1442	$_->ob->map
		1443	&& !$_->hidden
		1444	&& !$_->ob->flag (cf::FLAG_WIZ),
		1445	cf::player::list
		1446	}
		1447
920	=item cf::player::find $login	1448	=item cf::player::find $login
921		1449
922	Returns the given player object, loading it if necessary (might block).	1450	Returns the given player object, loading it if necessary (might block).
923		1451
924	=cut	1452	=cut
925		1453
926	sub playerdir($) {	1454	sub playerdir($) {
927	cf::localdir	1455	"$PLAYERDIR/"
928	. "/"
929	. cf::playerdir
930	. "/"
931	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1456	. (ref $_[0] ? $_[0]->ob->name : $_[0])
932	}	1457	}
933		1458
934	sub path($) {	1459	sub path($) {
935	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1460	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
936		1461
937	(playerdir $login) . "/$login.pl"	1462	(playerdir $login) . "/playerdata"
938	}	1463	}
939		1464
940	sub find_active($) {	1465	sub find_active($) {
941	$cf::PLAYER{$_[0]}	1466	$cf::PLAYER{$_[0]}
942	and $cf::PLAYER{$_[0]}->active	1467	and $cf::PLAYER{$_[0]}->active
…		…
945		1470
946	sub exists($) {	1471	sub exists($) {
947	my ($login) = @_;	1472	my ($login) = @_;
948		1473
949	$cf::PLAYER{$login}	1474	$cf::PLAYER{$login}
950	or cf::sync_job { !aio_stat $login }	1475	or !aio_stat path $login
951	}	1476	}
952		1477
953	sub find($) {	1478	sub find($) {
954	return $cf::PLAYER{$_[0]} || do {	1479	return $cf::PLAYER{$_[0]} || do {
955	my $login = $_[0];	1480	my $login = $_[0];
956		1481
957	my $guard = cf::lock_acquire "user_find:$login";	1482	my $guard = cf::lock_acquire "user_find:$login";
958		1483
959	$cf::PLAYER{$_[0]} || do {	1484	$cf::PLAYER{$_[0]} || do {
960	my $pl = load_pl path $login	1485	# rename old playerfiles to new ones
		1486	#TODO: remove when no longer required
		1487	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1488	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1489	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1490	aio_unlink +(playerdir $login) . "/$login.pl";
		1491
		1492	my $f = new_from_file cf::object::thawer path $login
961	or return;	1493	or return;
		1494
		1495	my $pl = cf::player::load_pl $f
		1496	or return;
		1497
		1498	local $cf::PLAYER_LOADING{$login} = $pl;
		1499	$f->resolve_delayed_derefs;
962	$cf::PLAYER{$login} = $pl	1500	$cf::PLAYER{$login} = $pl
963	}	1501	}
964	}	1502	}
965	}	1503	}
966		1504
…		…
975	return if $pl->{deny_save};	1513	return if $pl->{deny_save};
976		1514
977	aio_mkdir playerdir $pl, 0770;	1515	aio_mkdir playerdir $pl, 0770;
978	$pl->{last_save} = $cf::RUNTIME;	1516	$pl->{last_save} = $cf::RUNTIME;
979		1517
		1518	cf::get_slot 0.01;
		1519
980	$pl->save_pl ($path);	1520	$pl->save_pl ($path);
981	Coro::cede;	1521	cf::cede_to_tick;
982	}	1522	}
983		1523
984	sub new($) {	1524	sub new($) {
985	my ($login) = @_;	1525	my ($login) = @_;
986		1526
…		…
992	$cf::PLAYER{$login} = $self;	1532	$cf::PLAYER{$login} = $self;
993		1533
994	$self	1534	$self
995	}	1535	}
996		1536
		1537	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1538
		1539	=cut
		1540
		1541	sub send_msg {
		1542	my $ns = shift->ns
		1543	or return;
		1544	$ns->send_msg (@_);
		1545	}
		1546
997	=item $pl->quit_character	1547	=item $pl->quit_character
998		1548
999	Nukes the player without looking back. If logged in, the connection will	1549	Nukes the player without looking back. If logged in, the connection will
1000	be destroyed. May block for a long time.	1550	be destroyed. May block for a long time.
1001		1551
1002	=cut	1552	=cut
1003		1553
1004	sub quit_character {	1554	sub quit_character {
1005	my ($pl) = @_;	1555	my ($pl) = @_;
1006		1556
		1557	my $name = $pl->ob->name;
		1558
1007	$pl->{deny_save} = 1;	1559	$pl->{deny_save} = 1;
1008	$pl->password ("*"); # this should lock out the player until we nuked the dir	1560	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1009		1561
1010	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1562	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1011	$pl->deactivate;	1563	$pl->deactivate;
		1564	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1565	$pl->ob->check_score;
1012	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1566	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1013	$pl->ns->destroy if $pl->ns;	1567	$pl->ns->destroy if $pl->ns;
1014		1568
1015	my $path = playerdir $pl;	1569	my $path = playerdir $pl;
1016	my $temp = "$path~$cf::RUNTIME~deleting~";	1570	my $temp = "$path~$cf::RUNTIME~deleting~";
1017	aio_rename $path, $temp;	1571	aio_rename $path, $temp;
1018	delete $cf::PLAYER{$pl->ob->name};	1572	delete $cf::PLAYER{$pl->ob->name};
1019	$pl->destroy;	1573	$pl->destroy;
		1574
		1575	my $prefix = qr<^~\Q$name\E/>;
		1576
		1577	# nuke player maps
		1578	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1579
1020	IO::AIO::aio_rmtree $temp;	1580	IO::AIO::aio_rmtree $temp;
		1581	}
		1582
		1583	=item $pl->kick
		1584
		1585	Kicks a player out of the game. This destroys the connection.
		1586
		1587	=cut
		1588
		1589	sub kick {
		1590	my ($pl, $kicker) = @_;
		1591
		1592	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1593	$pl->killer ("kicked");
		1594	$pl->ns->destroy;
1021	}	1595	}
1022		1596
1023	=item cf::player::list_logins	1597	=item cf::player::list_logins
1024		1598
1025	Returns am arrayref of all valid playernames in the system, can take a	1599	Returns am arrayref of all valid playernames in the system, can take a
1026	while and may block, so not sync_job-capable, ever.	1600	while and may block, so not sync_job-capable, ever.
1027		1601
1028	=cut	1602	=cut
1029		1603
1030	sub list_logins {	1604	sub list_logins {
1031	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1605	my $dirs = aio_readdir $PLAYERDIR
1032	or return [];	1606	or return [];
1033		1607
1034	my @logins;	1608	my @logins;
1035		1609
1036	for my $login (@$dirs) {	1610	for my $login (@$dirs) {
		1611	my $path = path $login;
		1612
		1613	# a .pst is a dead give-away for a valid player
		1614	# if no pst file found, open and chekc for blocked users
		1615	if (aio_stat "$path.pst") {
1037	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1616	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1038	aio_read $fh, 0, 512, my $buf, 0 or next;	1617	aio_read $fh, 0, 512, my $buf, 0 or next;
1039	$buf !~ /^password -------------$/m or next; # official not-valid tag	1618	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1619	}
1040		1620
1041	utf8::decode $login;	1621	utf8::decode $login;
1042	push @logins, $login;	1622	push @logins, $login;
1043	}	1623	}
1044		1624
…		…
1052		1632
1053	=cut	1633	=cut
1054		1634
1055	sub maps($) {	1635	sub maps($) {
1056	my ($pl) = @_;	1636	my ($pl) = @_;
		1637
		1638	$pl = ref $pl ? $pl->ob->name : $pl;
1057		1639
1058	my $files = aio_readdir playerdir $pl	1640	my $files = aio_readdir playerdir $pl
1059	or return;	1641	or return;
1060		1642
1061	my @paths;	1643	my @paths;
…		…
1063	for (@$files) {	1645	for (@$files) {
1064	utf8::decode $_;	1646	utf8::decode $_;
1065	next if /\.(?:pl|pst)$/;	1647	next if /\.(?:pl|pst)$/;
1066	next unless /^$PATH_SEP/o;	1648	next unless /^$PATH_SEP/o;
1067		1649
1068	s/\.map$//;	1650	push @paths, cf::map::normalise "~$pl/$_";
1069	push @paths, "~" . $pl->ob->name . "/" . $_;
1070	}	1651	}
1071		1652
1072	\@paths	1653	\@paths
1073	}	1654	}
1074		1655
		1656	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1657
		1658	Expand deliantra pod fragments into protocol xml.
		1659
1075	=item $player->ext_reply ($msgid, $msgtype, %msg)	1660	=item $player->ext_reply ($msgid, @msg)
1076		1661
1077	Sends an ext reply to the player.	1662	Sends an ext reply to the player.
1078		1663
1079	=cut	1664	=cut
1080		1665
1081	sub ext_reply($$$%) {	1666	sub ext_reply($$@) {
1082	my ($self, $id, %msg) = @_;	1667	my ($self, $id, @msg) = @_;
1083		1668
1084	$msg{msgid} = $id;	1669	$self->ns->ext_reply ($id, @msg)
1085
1086	$self->send ("ext " . cf::to_json \%msg);
1087	}	1670	}
1088		1671
1089	package cf;	1672	=item $player->ext_msg ($type, @msg)
		1673
		1674	Sends an ext event to the client.
		1675
		1676	=cut
		1677
		1678	sub ext_msg($$@) {
		1679	my ($self, $type, @msg) = @_;
		1680
		1681	$self->ns->ext_msg ($type, @msg);
		1682	}
		1683
		1684	=head3 cf::region
		1685
		1686	=over 4
		1687
		1688	=cut
		1689
		1690	package cf::region;
		1691
		1692	=item cf::region::find_by_path $path
		1693
		1694	Tries to decuce the likely region for a map knowing only its path.
		1695
		1696	=cut
		1697
		1698	sub find_by_path($) {
		1699	my ($path) = @_;
		1700
		1701	my ($match, $specificity);
		1702
		1703	for my $region (list) {
		1704	if ($region->{match} && $path =~ $region->{match}) {
		1705	($match, $specificity) = ($region, $region->specificity)
		1706	if $region->specificity > $specificity;
		1707	}
		1708	}
		1709
		1710	$match
		1711	}
1090		1712
1091	=back	1713	=back
1092
1093		1714
1094	=head3 cf::map	1715	=head3 cf::map
1095		1716
1096	=over 4	1717	=over 4
1097		1718
…		…
1101		1722
1102	use Fcntl;	1723	use Fcntl;
1103	use Coro::AIO;	1724	use Coro::AIO;
1104		1725
1105	use overload	1726	use overload
1106	'""' => \&as_string;	1727	'""' => \&as_string,
		1728	fallback => 1;
1107		1729
1108	our $MAX_RESET = 3600;	1730	our $MAX_RESET = 3600;
1109	our $DEFAULT_RESET = 3000;	1731	our $DEFAULT_RESET = 3000;
1110		1732
1111	sub generate_random_map {	1733	sub generate_random_map {
1112	my ($self, $rmp) = @_;	1734	my ($self, $rmp) = @_;
		1735
		1736	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1113		1737
1114	# mit "rum" bekleckern, nicht	1738	# mit "rum" bekleckern, nicht
1115	$self->_create_random_map (	1739	$self->_create_random_map (
1116	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1740	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1117	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1741	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
…		…
1125	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1749	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1126	(cf::region::find $rmp->{region}), $rmp->{custom}	1750	(cf::region::find $rmp->{region}), $rmp->{custom}
1127	)	1751	)
1128	}	1752	}
1129		1753
		1754	=item cf::map->register ($regex, $prio)
		1755
		1756	Register a handler for the map path matching the given regex at the
		1757	givne priority (higher is better, built-in handlers have priority 0, the
		1758	default).
		1759
		1760	=cut
		1761
1130	sub register {	1762	sub register {
1131	my (undef, $regex) = @_;	1763	my (undef, $regex, $prio) = @_;
1132	my $pkg = caller;	1764	my $pkg = caller;
1133		1765
1134	no strict;	1766	no strict;
1135	push @{"$pkg\::ISA"}, __PACKAGE__;	1767	push @{"$pkg\::ISA"}, __PACKAGE__;
1136		1768
1137	$EXT_MAP{$pkg} = qr<$regex>;	1769	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1138	}	1770	}
1139		1771
1140	# also paths starting with '/'	1772	# also paths starting with '/'
1141	$EXT_MAP{"cf::map"} = qr{^(?=/)};	1773	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1774
		1775	sub thawer_merge {
		1776	my ($self, $merge) = @_;
		1777
		1778	# we have to keep some variables in memory intact
		1779	local $self->{path};
		1780	local $self->{load_path};
		1781
		1782	$self->SUPER::thawer_merge ($merge);
		1783	}
1142		1784
1143	sub normalise {	1785	sub normalise {
1144	my ($path, $base) = @_;	1786	my ($path, $base) = @_;
		1787
		1788	$path = "$path"; # make sure its a string
		1789
		1790	$path =~ s/\.map$//;
1145		1791
1146	# map plan:	1792	# map plan:
1147	#	1793	#
1148	# /! non-realised random map exit (special hack!)	1794	# /! non-realised random map exit (special hack!)
1149	# {... are special paths that are not being touched	1795	# {... are special paths that are not being touched
…		…
1177		1823
1178	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	1824	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1179		1825
1180	$path = normalise $path, $base;	1826	$path = normalise $path, $base;
1181		1827
1182	for my $pkg (keys %EXT_MAP) {	1828	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1183	if ($path =~ $EXT_MAP{$pkg}) {	1829	if ($path =~ $EXT_MAP{$pkg}[1]) {
1184	my $self = bless cf::map::new, $pkg;	1830	my $self = bless cf::map::new, $pkg;
1185	$self->{path} = $path; $self->path ($path);	1831	$self->{path} = $path; $self->path ($path);
1186	$self->init; # pass $1 etc.	1832	$self->init; # pass $1 etc.
1187	return $self;	1833	return $self;
1188	}	1834	}
1189	}	1835	}
1190		1836
1191	Carp::carp "unable to resolve path '$path'.";	1837	Carp::cluck "unable to resolve path '$path' (base '$base').";
1192	()	1838	()
1193	}	1839	}
1194		1840
1195	sub init {	1841	sub init {
1196	my ($self) = @_;	1842	my ($self) = @_;
…		…
1211		1857
1212	# the original (read-only) location	1858	# the original (read-only) location
1213	sub load_path {	1859	sub load_path {
1214	my ($self) = @_;	1860	my ($self) = @_;
1215		1861
1216	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1862	"$MAPDIR/$self->{path}.map"
1217	}	1863	}
1218		1864
1219	# the temporary/swap location	1865	# the temporary/swap location
1220	sub save_path {	1866	sub save_path {
1221	my ($self) = @_;	1867	my ($self) = @_;
1222		1868
1223	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1869	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1224	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1870	"$TMPDIR/$path.map"
1225	}	1871	}
1226		1872
1227	# the unique path, undef == no special unique path	1873	# the unique path, undef == no special unique path
1228	sub uniq_path {	1874	sub uniq_path {
1229	my ($self) = @_;	1875	my ($self) = @_;
1230		1876
1231	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1877	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1232	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1878	"$UNIQUEDIR/$path"
1233	}	1879	}
1234		1880
1235	# and all this just because we cannot iterate over	1881	sub decay_objects {
1236	# all maps in C++...
1237	sub change_all_map_light {
1238	my ($change) = @_;	1882	my ($self) = @_;
1239		1883
1240	$_->change_map_light ($change)	1884	return if $self->{deny_reset};
1241	for grep $_->outdoor, values %cf::MAP;	1885
		1886	$self->do_decay_objects;
1242	}	1887	}
1243		1888
1244	sub unlink_save {	1889	sub unlink_save {
1245	my ($self) = @_;	1890	my ($self) = @_;
1246		1891
1247	utf8::encode (my $save = $self->save_path);	1892	utf8::encode (my $save = $self->save_path);
1248	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;	1893	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1249	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";	1894	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1250	}	1895	}
1251		1896
1252	sub load_header_from($) {	1897	sub load_header_from($) {
1253	my ($self, $path) = @_;	1898	my ($self, $path) = @_;
1254		1899
1255	utf8::encode $path;	1900	utf8::encode $path;
1256	aio_open $path, O_RDONLY, 0	1901	my $f = new_from_file cf::object::thawer $path
1257	or return;	1902	or return;
1258		1903
1259	$self->_load_header ($path)	1904	$self->_load_header ($f)
1260	or return;	1905	or return;
1261		1906
		1907	local $MAP_LOADING{$self->{path}} = $self;
		1908	$f->resolve_delayed_derefs;
		1909
1262	$self->{load_path} = $path;	1910	$self->{load_path} = $path;
1263		1911
1264	1	1912	1
1265	}	1913	}
1266		1914
1267	sub load_orig {	1915	sub load_header_orig {
1268	my ($self) = @_;	1916	my ($self) = @_;
1269		1917
1270	$self->load_header_from ($self->load_path)	1918	$self->load_header_from ($self->load_path)
1271	}	1919	}
1272		1920
1273	sub load_temp {	1921	sub load_header_temp {
1274	my ($self) = @_;	1922	my ($self) = @_;
1275		1923
1276	$self->load_header_from ($self->save_path)	1924	$self->load_header_from ($self->save_path)
		1925	}
		1926
		1927	sub prepare_temp {
		1928	my ($self) = @_;
		1929
		1930	$self->last_access ((delete $self->{last_access})
		1931	|| $cf::RUNTIME); #d#
		1932	# safety
		1933	$self->{instantiate_time} = $cf::RUNTIME
		1934	if $self->{instantiate_time} > $cf::RUNTIME;
		1935	}
		1936
		1937	sub prepare_orig {
		1938	my ($self) = @_;
		1939
		1940	$self->{load_original} = 1;
		1941	$self->{instantiate_time} = $cf::RUNTIME;
		1942	$self->last_access ($cf::RUNTIME);
		1943	$self->instantiate;
1277	}	1944	}
1278		1945
1279	sub load_header {	1946	sub load_header {
1280	my ($self) = @_;	1947	my ($self) = @_;
1281		1948
1282	if ($self->load_temp) {	1949	if ($self->load_header_temp) {
1283	$self->last_access ((delete $self->{last_access})	1950	$self->prepare_temp;
1284	|| $cf::RUNTIME); #d#
1285	# safety
1286	$self->{instantiate_time} = $cf::RUNTIME
1287	if $self->{instantiate_time} > $cf::RUNTIME;
1288	} else {	1951	} else {
1289	$self->load_orig	1952	$self->load_header_orig
1290	or return;	1953	or return;
1291		1954	$self->prepare_orig;
1292	$self->{load_original} = 1;
1293	$self->{instantiate_time} = $cf::RUNTIME;
1294	$self->last_access ($cf::RUNTIME);
1295	$self->instantiate;
1296	}	1955	}
		1956
		1957	$self->{deny_reset} = 1
		1958	if $self->no_reset;
		1959
		1960	$self->default_region (cf::region::find_by_path $self->{path})
		1961	unless $self->default_region;
1297		1962
1298	1	1963	1
1299	}	1964	}
1300		1965
1301	sub find;	1966	sub find;
1302	sub find {	1967	sub find {
1303	my ($path, $origin) = @_;	1968	my ($path, $origin) = @_;
1304		1969
1305	$path = normalise $path, $origin && $origin->path;	1970	$path = normalise $path, $origin && $origin->path;
1306		1971
		1972	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1307	cf::lock_wait "map_find:$path";	1973	my $guard2 = cf::lock_acquire "map_find:$path";
1308		1974
1309	$cf::MAP{$path} || do {	1975	$cf::MAP{$path} || do {
1310	my $guard = cf::lock_acquire "map_find:$path";
1311	my $map = new_from_path cf::map $path	1976	my $map = new_from_path cf::map $path
1312	or return;	1977	or return;
1313		1978
1314	$map->{last_save} = $cf::RUNTIME;	1979	$map->{last_save} = $cf::RUNTIME;
1315		1980
1316	$map->load_header	1981	$map->load_header
1317	or return;	1982	or return;
1318		1983
1319	if ($map->should_reset) {	1984	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1985	# doing this can freeze the server in a sync job, obviously
		1986	#$cf::WAIT_FOR_TICK->wait;
		1987	undef $guard2;
		1988	undef $guard1;
1320	$map->reset;	1989	$map->reset;
1321	undef $guard;
1322	$map = find $path	1990	return find $path;
1323	or return;
1324	}	1991	}
1325		1992
1326	$cf::MAP{$path} = $map	1993	$cf::MAP{$path} = $map
1327	}	1994	}
1328	}	1995	}
		1996
		1997	sub pre_load { }
		1998	sub post_load { }
1329		1999
1330	sub load {	2000	sub load {
1331	my ($self) = @_;	2001	my ($self) = @_;
1332		2002
		2003	local $self->{deny_reset} = 1; # loading can take a long time
		2004
1333	my $path = $self->{path};	2005	my $path = $self->{path};
		2006
		2007	{
1334	my $guard = cf::lock_acquire "map_load:$path";	2008	my $guard = cf::lock_acquire "map_data:$path";
1335		2009
		2010	return unless $self->valid;
1336	return if $self->in_memory != cf::MAP_SWAPPED;	2011	return unless $self->in_memory == cf::MAP_SWAPPED;
1337		2012
1338	$self->in_memory (cf::MAP_LOADING);	2013	$self->in_memory (cf::MAP_LOADING);
1339		2014
1340	$self->alloc;	2015	$self->alloc;
1341	$self->_load_objects ($self->{load_path}, 1)	2016
		2017	$self->pre_load;
		2018	cf::cede_to_tick;
		2019
		2020	my $f = new_from_file cf::object::thawer $self->{load_path};
		2021	$f->skip_block;
		2022	$self->_load_objects ($f)
1342	or return;	2023	or return;
1343		2024
1344	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2025	$self->post_load_original
1345	if delete $self->{load_original};	2026	if delete $self->{load_original};
1346		2027
1347	if (my $uniq = $self->uniq_path) {	2028	if (my $uniq = $self->uniq_path) {
1348	utf8::encode $uniq;	2029	utf8::encode $uniq;
1349	if (aio_open $uniq, O_RDONLY, 0) {	2030	unless (aio_stat $uniq) {
		2031	if (my $f = new_from_file cf::object::thawer $uniq) {
1350	$self->clear_unique_items;	2032	$self->clear_unique_items;
1351	$self->_load_objects ($uniq, 0);	2033	$self->_load_objects ($f);
		2034	$f->resolve_delayed_derefs;
		2035	}
1352	}	2036	}
1353	}	2037	}
1354		2038
1355	Coro::cede;	2039	$f->resolve_delayed_derefs;
1356		2040
		2041	cf::cede_to_tick;
1357	# now do the right thing for maps	2042	# now do the right thing for maps
1358	$self->link_multipart_objects;	2043	$self->link_multipart_objects;
1359
1360	unless ($self->{deny_activate}) {
1361	$self->decay_objects;
1362	$self->fix_auto_apply;
1363	$self->update_buttons;
1364	Coro::cede;
1365	$self->set_darkness_map;
1366	$self->difficulty ($self->estimate_difficulty)	2044	$self->difficulty ($self->estimate_difficulty)
1367	unless $self->difficulty;	2045	unless $self->difficulty;
1368	Coro::cede;	2046	cf::cede_to_tick;
		2047
		2048	unless ($self->{deny_activate}) {
		2049	$self->decay_objects;
		2050	$self->fix_auto_apply;
		2051	$self->update_buttons;
		2052	cf::cede_to_tick;
1369	$self->activate;	2053	$self->activate;
1370	}	2054	}
1371		2055
		2056	$self->{last_save} = $cf::RUNTIME;
		2057	$self->last_access ($cf::RUNTIME);
		2058
1372	$self->in_memory (cf::MAP_IN_MEMORY);	2059	$self->in_memory (cf::MAP_ACTIVE);
		2060	}
		2061
		2062	$self->post_load;
1373	}	2063	}
1374		2064
1375	sub customise_for {	2065	sub customise_for {
1376	my ($self, $ob) = @_;	2066	my ($self, $ob) = @_;
1377		2067
1378	return find "~" . $ob->name . "/" . $self->{path}	2068	return find "~" . $ob->name . "/" . $self->{path}
1379	if $self->per_player;	2069	if $self->per_player;
1380		2070
		2071	# return find "?party/" . $ob->name . "/" . $self->{path}
		2072	# if $self->per_party;
		2073
1381	$self	2074	$self
1382	}	2075	}
1383		2076
1384	# find and load all maps in the 3x3 area around a map	2077	# find and load all maps in the 3x3 area around a map
1385	sub load_diag {	2078	sub load_neighbours {
1386	my ($map) = @_;	2079	my ($map) = @_;
1387		2080
1388	my @diag; # diagonal neighbours	2081	my @neigh; # diagonal neighbours
1389		2082
1390	for (0 .. 3) {	2083	for (0 .. 3) {
1391	my $neigh = $map->tile_path ($_)	2084	my $neigh = $map->tile_path ($_)
1392	or next;	2085	or next;
1393	$neigh = find $neigh, $map	2086	$neigh = find $neigh, $map
1394	or next;	2087	or next;
1395	$neigh->load;	2088	$neigh->load;
1396		2089
		2090	push @neigh,
1397	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2091	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1398	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2092	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1399	}	2093	}
1400		2094
1401	for (@diag) {	2095	for (grep defined $_->[0], @neigh) {
		2096	my ($path, $origin) = @$_;
1402	my $neigh = find @$_	2097	my $neigh = find $path, $origin
1403	or next;	2098	or next;
1404	$neigh->load;	2099	$neigh->load;
1405	}	2100	}
1406	}	2101	}
1407		2102
…		…
1412	}	2107	}
1413		2108
1414	sub do_load_sync {	2109	sub do_load_sync {
1415	my ($map) = @_;	2110	my ($map) = @_;
1416		2111
		2112	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2113	if $Coro::current == $Coro::main;
		2114
1417	cf::sync_job { $map->load };	2115	cf::sync_job { $map->load };
1418	}	2116	}
1419		2117
1420	our %MAP_PREFETCH;	2118	our %MAP_PREFETCH;
1421	our $MAP_PREFETCHER = Coro::async {	2119	our $MAP_PREFETCHER = undef;
1422	while () {
1423	for my $path (keys %MAP_PREFETCH) {
1424	my $map = find $path
1425	or next;
1426	$map->load;
1427
1428	delete $MAP_PREFETCH{$path};
1429	}
1430	Coro::schedule;
1431	}
1432	};
1433		2120
1434	sub find_async {	2121	sub find_async {
1435	my ($path, $origin) = @_;	2122	my ($path, $origin, $load) = @_;
1436		2123
1437	$path = normalise $path, $origin && $origin->{path};	2124	$path = normalise $path, $origin && $origin->{path};
1438		2125
1439	if (my $map = $cf::MAP{$path}) {	2126	if (my $map = $cf::MAP{$path}) {
1440	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2127	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2128	}
		2129
		2130	$MAP_PREFETCH{$path} |= $load;
		2131
		2132	$MAP_PREFETCHER ||= cf::async {
		2133	$Coro::current->{desc} = "map prefetcher";
		2134
		2135	while (%MAP_PREFETCH) {
		2136	while (my ($k, $v) = each %MAP_PREFETCH) {
		2137	if (my $map = find $k) {
		2138	$map->load if $v;
		2139	}
		2140
		2141	delete $MAP_PREFETCH{$k};
		2142	}
		2143	}
		2144	undef $MAP_PREFETCHER;
1441	}	2145	};
1442
1443	$MAP_PREFETCH{$path} = 0;
1444	$MAP_PREFETCHER->ready;	2146	$MAP_PREFETCHER->prio (6);
1445		2147
1446	()	2148	()
1447	}	2149	}
1448		2150
1449	sub save {	2151	sub save {
1450	my ($self) = @_;	2152	my ($self) = @_;
1451		2153
1452	my $lock = cf::lock_acquire "map_data:" . $self->path;	2154	my $lock = cf::lock_acquire "map_data:$self->{path}";
1453		2155
1454	$self->{last_save} = $cf::RUNTIME;	2156	$self->{last_save} = $cf::RUNTIME;
1455		2157
1456	return unless $self->dirty;	2158	return unless $self->dirty;
1457		2159
…		…
1463	return if $self->{deny_save};	2165	return if $self->{deny_save};
1464		2166
1465	local $self->{last_access} = $self->last_access;#d#	2167	local $self->{last_access} = $self->last_access;#d#
1466		2168
1467	cf::async {	2169	cf::async {
		2170	$Coro::current->{desc} = "map player save";
1468	$_->contr->save for $self->players;	2171	$_->contr->save for $self->players;
1469	};	2172	};
		2173
		2174	cf::get_slot 0.02;
1470		2175
1471	if ($uniq) {	2176	if ($uniq) {
1472	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2177	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1473	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2178	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1474	} else {	2179	} else {
…		…
1480	my ($self) = @_;	2185	my ($self) = @_;
1481		2186
1482	# save first because save cedes	2187	# save first because save cedes
1483	$self->save;	2188	$self->save;
1484		2189
1485	my $lock = cf::lock_acquire "map_data:" . $self->path;	2190	my $lock = cf::lock_acquire "map_data:$self->{path}";
1486		2191
1487	return if $self->players;	2192	return if $self->players;
1488	return if $self->in_memory != cf::MAP_IN_MEMORY;	2193	return if $self->in_memory != cf::MAP_ACTIVE;
1489	return if $self->{deny_save};	2194	return if $self->{deny_save};
1490		2195
		2196	$self->in_memory (cf::MAP_SWAPPED);
		2197
		2198	$self->deactivate;
		2199	$_->clear_links_to ($self) for values %cf::MAP;
1491	$self->clear;	2200	$self->clear;
1492	$self->in_memory (cf::MAP_SWAPPED);
1493	}	2201	}
1494		2202
1495	sub reset_at {	2203	sub reset_at {
1496	my ($self) = @_;	2204	my ($self) = @_;
1497		2205
1498	# TODO: safety, remove and allow resettable per-player maps	2206	# TODO: safety, remove and allow resettable per-player maps
1499	return 1e99 if $self->isa ("ext::map_per_player");
1500	return 1e99 if $self->{deny_reset};	2207	return 1e99 if $self->{deny_reset};
1501		2208
1502	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2209	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1503	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2210	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1504		2211
…		…
1509	my ($self) = @_;	2216	my ($self) = @_;
1510		2217
1511	$self->reset_at <= $cf::RUNTIME	2218	$self->reset_at <= $cf::RUNTIME
1512	}	2219	}
1513		2220
1514	sub rename {
1515	my ($self, $new_path) = @_;
1516
1517	normalise $new_path;
1518
1519	$self->unlink_save;
1520
1521	delete $cf::MAP{$self->path};
1522	$self->{path} = $new_path; $self->path ($self->{path});
1523	$cf::MAP{$self->path} = $self;
1524
1525	$self->save;
1526	}
1527
1528	sub reset {	2221	sub reset {
1529	my ($self) = @_;	2222	my ($self) = @_;
1530		2223
1531	my $lock = cf::lock_acquire "map_data:$self->{path}";	2224	my $lock = cf::lock_acquire "map_data:$self->{path}";
1532		2225
1533	return if $self->players;	2226	return if $self->players;
1534	return if $self->isa ("ext::map_per_player");#d#
1535		2227
1536	warn "resetting map ", $self->path;#d#	2228	warn "resetting map ", $self->path;
		2229
		2230	$self->in_memory (cf::MAP_SWAPPED);
		2231
		2232	# need to save uniques path
		2233	unless ($self->{deny_save}) {
		2234	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2235
		2236	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2237	if $uniq;
		2238	}
1537		2239
1538	delete $cf::MAP{$self->path};	2240	delete $cf::MAP{$self->path};
1539		2241
1540	$self->in_memory (cf::MAP_SWAPPED);	2242	$self->deactivate;
		2243	$_->clear_links_to ($self) for values %cf::MAP;
1541	$self->clear;	2244	$self->clear;
1542
1543	$_->clear_links_to ($self) for values %cf::MAP;
1544		2245
1545	$self->unlink_save;	2246	$self->unlink_save;
1546	$self->destroy;	2247	$self->destroy;
1547	}	2248	}
1548		2249
1549	my $nuke_counter = "aaaa";	2250	my $nuke_counter = "aaaa";
1550		2251
1551	sub nuke {	2252	sub nuke {
1552	my ($self) = @_;	2253	my ($self) = @_;
1553		2254
		2255	{
		2256	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2257
		2258	delete $cf::MAP{$self->path};
		2259
		2260	$self->unlink_save;
		2261
		2262	bless $self, "cf::map";
		2263	delete $self->{deny_reset};
1554	$self->{deny_save} = 1;	2264	$self->{deny_save} = 1;
1555	$self->reset_timeout (1);	2265	$self->reset_timeout (1);
1556	$self->rename ("{nuke}/" . ($nuke_counter++));	2266	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2267
		2268	$cf::MAP{$self->path} = $self;
		2269	}
		2270
1557	$self->reset; # polite request, might not happen	2271	$self->reset; # polite request, might not happen
		2272	}
		2273
		2274	=item $maps = cf::map::tmp_maps
		2275
		2276	Returns an arrayref with all map paths of currently instantiated and saved
		2277	maps. May block.
		2278
		2279	=cut
		2280
		2281	sub tmp_maps() {
		2282	[
		2283	map {
		2284	utf8::decode $_;
		2285	/\.map$/
		2286	? normalise $_
		2287	: ()
		2288	} @{ aio_readdir $TMPDIR or [] }
		2289	]
		2290	}
		2291
		2292	=item $maps = cf::map::random_maps
		2293
		2294	Returns an arrayref with all map paths of currently instantiated and saved
		2295	random maps. May block.
		2296
		2297	=cut
		2298
		2299	sub random_maps() {
		2300	[
		2301	map {
		2302	utf8::decode $_;
		2303	/\.map$/
		2304	? normalise "?random/$_"
		2305	: ()
		2306	} @{ aio_readdir $RANDOMDIR or [] }
		2307	]
1558	}	2308	}
1559		2309
1560	=item cf::map::unique_maps	2310	=item cf::map::unique_maps
1561		2311
1562	Returns an arrayref of paths of all shared maps that have	2312	Returns an arrayref of paths of all shared maps that have
1563	instantiated unique items. May block.	2313	instantiated unique items. May block.
1564		2314
1565	=cut	2315	=cut
1566		2316
1567	sub unique_maps() {	2317	sub unique_maps() {
1568	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2318	[
1569	or return;	2319	map {
1570
1571	my @paths;
1572
1573	for (@$files) {
1574	utf8::decode $_;	2320	utf8::decode $_;
1575	next if /\.pst$/;	2321	s/\.map$//; # TODO future compatibility hack
1576	next unless /^$PATH_SEP/o;	2322	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1577		2323	? ()
1578	s/\.map$//;	2324	: normalise $_
1579	push @paths, $_;	2325	} @{ aio_readdir $UNIQUEDIR or [] }
1580	}	2326	]
1581
1582	\@paths
1583	}	2327	}
1584
1585	package cf;
1586		2328
1587	=back	2329	=back
1588		2330
1589	=head3 cf::object	2331	=head3 cf::object
1590		2332
…		…
1594		2336
1595	=over 4	2337	=over 4
1596		2338
1597	=item $ob->inv_recursive	2339	=item $ob->inv_recursive
1598		2340
1599	Returns the inventory of the object _and_ their inventories, recursively.	2341	Returns the inventory of the object I<and> their inventories, recursively,
		2342	but I<not> the object itself.
1600		2343
1601	=cut	2344	=cut
1602		2345
1603	sub inv_recursive_;	2346	sub inv_recursive_;
1604	sub inv_recursive_ {	2347	sub inv_recursive_ {
…		…
1607		2350
1608	sub inv_recursive {	2351	sub inv_recursive {
1609	inv_recursive_ inv $_[0]	2352	inv_recursive_ inv $_[0]
1610	}	2353	}
1611		2354
		2355	=item $ref = $ob->ref
		2356
		2357	Creates and returns a persistent reference to an object that can be stored as a string.
		2358
		2359	=item $ob = cf::object::deref ($refstring)
		2360
		2361	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2362	even if the object actually exists. May block.
		2363
		2364	=cut
		2365
		2366	sub deref {
		2367	my ($ref) = @_;
		2368
		2369	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2370	my ($uuid, $name) = ($1, $2);
		2371	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2372	or return;
		2373	$pl->ob->uuid eq $uuid
		2374	or return;
		2375
		2376	$pl->ob
		2377	} else {
		2378	warn "$ref: cannot resolve object reference\n";
		2379	undef
		2380	}
		2381	}
		2382
1612	package cf;	2383	package cf;
1613		2384
1614	=back	2385	=back
1615		2386
1616	=head3 cf::object::player	2387	=head3 cf::object::player
…		…
1622	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2393	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1623	can be C<undef>. Does the right thing when the player is currently in a	2394	can be C<undef>. Does the right thing when the player is currently in a
1624	dialogue with the given NPC character.	2395	dialogue with the given NPC character.
1625		2396
1626	=cut	2397	=cut
		2398
		2399	our $SAY_CHANNEL = {
		2400	id => "say",
		2401	title => "Map",
		2402	reply => "say ",
		2403	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2404	};
		2405
		2406	our $CHAT_CHANNEL = {
		2407	id => "chat",
		2408	title => "Chat",
		2409	reply => "chat ",
		2410	tooltip => "Player chat and shouts, global to the server.",
		2411	};
1627		2412
1628	# rough implementation of a future "reply" method that works	2413	# rough implementation of a future "reply" method that works
1629	# with dialog boxes.	2414	# with dialog boxes.
1630	#TODO: the first argument must go, split into a $npc->reply_to ( method	2415	#TODO: the first argument must go, split into a $npc->reply_to ( method
1631	sub cf::object::player::reply($$$;$) {	2416	sub cf::object::player::reply($$$;$) {
…		…
1633		2418
1634	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2419	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1635		2420
1636	if ($self->{record_replies}) {	2421	if ($self->{record_replies}) {
1637	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2422	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2423
1638	} else {	2424	} else {
		2425	my $pl = $self->contr;
		2426
		2427	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2428	my $dialog = $pl->{npc_dialog};
		2429	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2430
		2431	} else {
1639	$msg = $npc->name . " says: $msg" if $npc;	2432	$msg = $npc->name . " says: $msg" if $npc;
1640	$self->message ($msg, $flags);	2433	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2434	}
1641	}	2435	}
		2436	}
		2437
		2438	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2439
		2440	=cut
		2441
		2442	sub cf::object::send_msg {
		2443	my $pl = shift->contr
		2444	or return;
		2445	$pl->send_msg (@_);
1642	}	2446	}
1643		2447
1644	=item $player_object->may ("access")	2448	=item $player_object->may ("access")
1645		2449
1646	Returns wether the given player is authorized to access resource "access"	2450	Returns wether the given player is authorized to access resource "access"
…		…
1659		2463
1660	=item $player_object->enter_link	2464	=item $player_object->enter_link
1661		2465
1662	Freezes the player and moves him/her to a special map (C<{link}>).	2466	Freezes the player and moves him/her to a special map (C<{link}>).
1663		2467
1664	The player should be reasonably safe there for short amounts of time. You	2468	The player should be reasonably safe there for short amounts of time (e.g.
1665	I<MUST> call C<leave_link> as soon as possible, though.	2469	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2470	though, as the palyer cannot control the character while it is on the link
		2471	map.
1666		2472
1667	Will never block.	2473	Will never block.
1668		2474
1669	=item $player_object->leave_link ($map, $x, $y)	2475	=item $player_object->leave_link ($map, $x, $y)
1670		2476
…		…
1678	=cut	2484	=cut
1679		2485
1680	sub link_map {	2486	sub link_map {
1681	unless ($LINK_MAP) {	2487	unless ($LINK_MAP) {
1682	$LINK_MAP = cf::map::find "{link}"	2488	$LINK_MAP = cf::map::find "{link}"
1683	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2489	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1684	$LINK_MAP->load;	2490	$LINK_MAP->load;
1685	}	2491	}
1686		2492
1687	$LINK_MAP	2493	$LINK_MAP
1688	}	2494	}
…		…
1693	$self->deactivate_recursive;	2499	$self->deactivate_recursive;
1694		2500
1695	return if UNIVERSAL::isa $self->map, "ext::map_link";	2501	return if UNIVERSAL::isa $self->map, "ext::map_link";
1696		2502
1697	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2503	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1698	if $self->map;	2504	if $self->map && $self->map->{path} ne "{link}";
1699		2505
1700	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2506	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1701	}	2507	}
1702		2508
1703	sub cf::object::player::leave_link {	2509	sub cf::object::player::leave_link {
1704	my ($self, $map, $x, $y) = @_;	2510	my ($self, $map, $x, $y) = @_;
		2511
		2512	return unless $self->contr->active;
1705		2513
1706	my $link_pos = delete $self->{_link_pos};	2514	my $link_pos = delete $self->{_link_pos};
1707		2515
1708	unless ($map) {	2516	unless ($map) {
1709	# restore original map position	2517	# restore original map position
…		…
1723	# use -1 or undef as default coordinates, not 0, 0	2531	# use -1 or undef as default coordinates, not 0, 0
1724	($x, $y) = ($map->enter_x, $map->enter_y)	2532	($x, $y) = ($map->enter_x, $map->enter_y)
1725	if $x <=0 && $y <= 0;	2533	if $x <=0 && $y <= 0;
1726		2534
1727	$map->load;	2535	$map->load;
1728	$map->load_diag;	2536	$map->load_neighbours;
1729		2537
1730	return unless $self->contr->active;	2538	return unless $self->contr->active;
		2539	$self->flag (cf::FLAG_DEBUG, 0);#d# temp
1731	$self->activate_recursive;	2540	$self->activate_recursive;
		2541
		2542	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1732	$self->enter_map ($map, $x, $y);	2543	$self->enter_map ($map, $x, $y);
1733	}	2544	}
1734		2545
1735	cf::player->attach (	2546	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1736	on_logout => sub {
1737	my ($pl) = @_;
1738		2547
1739	# abort map switching before logout	2548	Moves the player to the given map-path and coordinates by first freezing
1740	if ($pl->ob->{_link_pos}) {	2549	her, loading and preparing them map, calling the provided $check callback
1741	cf::sync_job {	2550	that has to return the map if sucecssful, and then unfreezes the player on
1742	$pl->ob->leave_link	2551	the new (success) or old (failed) map position. In either case, $done will
1743	};	2552	be called at the end of this process.
1744	}
1745	},
1746	on_login => sub {
1747	my ($pl) = @_;
1748		2553
1749	# try to abort aborted map switching on player login :)	2554	Note that $check will be called with a potentially non-loaded map, so if
1750	# should happen only on crashes	2555	it needs a loaded map it has to call C<< ->load >>.
1751	if ($pl->ob->{_link_pos}) {
1752	$pl->ob->enter_link;
1753	(async {
1754	# we need this sleep as the login has a concurrent enter_exit running
1755	# and this sleep increases chances of the player not ending up in scorn
1756	$pl->ob->reply (undef,
1757	"There was an internal problem at your last logout, "
1758	. "the server will try to bring you to your intended destination in a second.",
1759	cf::NDI_RED);
1760	Coro::Timer::sleep 1;
1761	$pl->ob->leave_link;
1762	})->prio (2);
1763	}
1764	},
1765	);
1766		2556
1767	=item $player_object->goto ($path, $x, $y)
1768
1769	=cut	2557	=cut
		2558
		2559	our $GOTOGEN;
1770		2560
1771	sub cf::object::player::goto {	2561	sub cf::object::player::goto {
1772	my ($self, $path, $x, $y) = @_;	2562	my ($self, $path, $x, $y, $check, $done) = @_;
		2563
		2564	# do generation counting so two concurrent goto's will be executed in-order
		2565	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1773		2566
1774	$self->enter_link;	2567	$self->enter_link;
1775		2568
1776	(async {	2569	(async {
1777	my $map = cf::map::find $path;	2570	$Coro::current->{desc} = "player::goto $path $x $y";
		2571
		2572	# *tag paths override both path and x|y
		2573	if ($path =~ /^\*(.*)$/) {
		2574	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2575	my $ob = $obs[rand @obs];
		2576
		2577	# see if we actually can go there
		2578	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2579	$ob = $obs[rand @obs];
		2580	} else {
		2581	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2582	}
		2583	# else put us there anyways for now #d#
		2584
		2585	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2586	} else {
		2587	($path, $x, $y) = (undef, undef, undef);
		2588	}
		2589	}
		2590
		2591	my $map = eval {
		2592	my $map = defined $path ? cf::map::find $path : undef;
		2593
		2594	if ($map) {
1778	$map = $map->customise_for ($self) if $map;	2595	$map = $map->customise_for ($self);
1779		2596	$map = $check->($map) if $check && $map;
1780	# warn "entering ", $map->path, " at ($x, $y)\n"	2597	} else {
1781	# if $map;
1782
1783	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2598	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2599	}
1784		2600
		2601	$map
		2602	};
		2603
		2604	if ($@) {
		2605	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2606	LOG llevError | logBacktrace, Carp::longmess $@;
		2607	}
		2608
		2609	if ($gen == $self->{_goto_generation}) {
		2610	delete $self->{_goto_generation};
1785	$self->leave_link ($map, $x, $y);	2611	$self->leave_link ($map, $x, $y);
		2612	}
		2613
		2614	$done->() if $done;
1786	})->prio (1);	2615	})->prio (1);
1787	}	2616	}
1788		2617
1789	=item $player_object->enter_exit ($exit_object)	2618	=item $player_object->enter_exit ($exit_object)
1790		2619
…		…
1792		2621
1793	sub parse_random_map_params {	2622	sub parse_random_map_params {
1794	my ($spec) = @_;	2623	my ($spec) = @_;
1795		2624
1796	my $rmp = { # defaults	2625	my $rmp = { # defaults
1797	xsize => 10,	2626	xsize => (cf::rndm 15, 40),
1798	ysize => 10,	2627	ysize => (cf::rndm 15, 40),
		2628	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2629	#layout => string,
1799	};	2630	};
1800		2631
1801	for (split /\n/, $spec) {	2632	for (split /\n/, $spec) {
1802	my ($k, $v) = split /\s+/, $_, 2;	2633	my ($k, $v) = split /\s+/, $_, 2;
1803		2634
…		…
1815	# that depends on the exit object	2646	# that depends on the exit object
1816		2647
1817	my $rmp = parse_random_map_params $exit->msg;	2648	my $rmp = parse_random_map_params $exit->msg;
1818		2649
1819	if ($exit->map) {	2650	if ($exit->map) {
1820	$rmp->{region} = $exit->map->region_name;	2651	$rmp->{region} = $exit->region->name;
1821	$rmp->{origin_map} = $exit->map->path;	2652	$rmp->{origin_map} = $exit->map->path;
1822	$rmp->{origin_x} = $exit->x;	2653	$rmp->{origin_x} = $exit->x;
1823	$rmp->{origin_y} = $exit->y;	2654	$rmp->{origin_y} = $exit->y;
		2655
		2656	$exit->map->touch;
1824	}	2657	}
1825		2658
1826	$rmp->{random_seed} ||= $exit->random_seed;	2659	$rmp->{random_seed} ||= $exit->random_seed;
1827		2660
1828	my $data = cf::to_json $rmp;	2661	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1829	my $md5 = Digest::MD5::md5_hex $data;	2662	my $md5 = Digest::MD5::md5_hex $data;
		2663	my $meta = "$RANDOMDIR/$md5.meta";
1830		2664
1831	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2665	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1832	aio_write $fh, 0, (length $data), $data, 0;	2666	aio_write $fh, 0, (length $data), $data, 0;
		2667	undef $fh;
		2668	aio_rename "$meta~", $meta;
1833		2669
		2670	my $slaying = "?random/$md5";
		2671
		2672	if ($exit->valid) {
1834	$exit->slaying ("?random/$md5");	2673	$exit->slaying ("?random/$md5");
1835	$exit->msg (undef);	2674	$exit->msg (undef);
		2675	}
1836	}	2676	}
1837	}	2677	}
1838		2678
1839	sub cf::object::player::enter_exit {	2679	sub cf::object::player::enter_exit {
1840	my ($self, $exit) = @_;	2680	my ($self, $exit) = @_;
…		…
1842	return unless $self->type == cf::PLAYER;	2682	return unless $self->type == cf::PLAYER;
1843		2683
1844	$self->enter_link;	2684	$self->enter_link;
1845		2685
1846	(async {	2686	(async {
1847	$self->deactivate_recursive; # just to be sure	2687	$Coro::current->{desc} = "enter_exit";
		2688
1848	unless (eval {	2689	unless (eval {
		2690	$self->deactivate_recursive; # just to be sure
		2691
		2692	# random map handling
		2693	{
		2694	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2695
1849	prepare_random_map $exit	2696	prepare_random_map $exit
1850	if $exit->slaying eq "/!";	2697	if $exit->slaying eq "/!";
		2698	}
1851		2699
1852	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;	2700	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1853	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2701	my $x = $exit->stats->hp;
		2702	my $y = $exit->stats->sp;
1854		2703
		2704	$self->goto ($map, $x, $y);
		2705
		2706	# if exit is damned, update players death & WoR home-position
		2707	$self->contr->savebed ($map, $x, $y)
		2708	if $exit->flag (cf::FLAG_DAMNED);
		2709
1855	1;	2710	1
1856	}) {	2711	}) {
1857	$self->message ("Something went wrong deep within the crossfire server. "	2712	$self->message ("Something went wrong deep within the deliantra server. "
1858	. "I'll try to bring you back to the map you were before. "	2713	. "I'll try to bring you back to the map you were before. "
1859	. "Please report this to the dungeon master!",	2714	. "Please report this to the dungeon master!",
1860	cf::NDI_UNIQUE | cf::NDI_RED);	2715	cf::NDI_UNIQUE | cf::NDI_RED);
1861		2716
1862	warn "ERROR in enter_exit: $@";	2717	warn "ERROR in enter_exit: $@";
1863	$self->leave_link;	2718	$self->leave_link;
1864	}	2719	}
1865	})->prio (1);	2720	})->prio (1);
…		…
1878		2733
1879	sub cf::client::send_drawinfo {	2734	sub cf::client::send_drawinfo {
1880	my ($self, $text, $flags) = @_;	2735	my ($self, $text, $flags) = @_;
1881		2736
1882	utf8::encode $text;	2737	utf8::encode $text;
1883	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2738	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1884	}	2739	}
1885		2740
		2741	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2742
		2743	Send a drawinfo or msg packet to the client, formatting the msg for the
		2744	client if neccessary. C<$type> should be a string identifying the type of
		2745	the message, with C<log> being the default. If C<$color> is negative, suppress
		2746	the message unless the client supports the msg packet.
		2747
		2748	=cut
		2749
		2750	# non-persistent channels (usually the info channel)
		2751	our %CHANNEL = (
		2752	"c/identify" => {
		2753	id => "infobox",
		2754	title => "Identify",
		2755	reply => undef,
		2756	tooltip => "Items recently identified",
		2757	},
		2758	"c/examine" => {
		2759	id => "infobox",
		2760	title => "Examine",
		2761	reply => undef,
		2762	tooltip => "Signs and other items you examined",
		2763	},
		2764	"c/book" => {
		2765	id => "infobox",
		2766	title => "Book",
		2767	reply => undef,
		2768	tooltip => "The contents of a note or book",
		2769	},
		2770	"c/lookat" => {
		2771	id => "infobox",
		2772	title => "Look",
		2773	reply => undef,
		2774	tooltip => "What you saw there",
		2775	},
		2776	"c/who" => {
		2777	id => "infobox",
		2778	title => "Players",
		2779	reply => undef,
		2780	tooltip => "Shows players who are currently online",
		2781	},
		2782	"c/body" => {
		2783	id => "infobox",
		2784	title => "Body Parts",
		2785	reply => undef,
		2786	tooltip => "Shows which body parts you posess and are available",
		2787	},
		2788	"c/statistics" => {
		2789	id => "infobox",
		2790	title => "Statistics",
		2791	reply => undef,
		2792	tooltip => "Shows your primary statistics",
		2793	},
		2794	"c/skills" => {
		2795	id => "infobox",
		2796	title => "Skills",
		2797	reply => undef,
		2798	tooltip => "Shows your experience per skill and item power",
		2799	},
		2800	"c/shopitems" => {
		2801	id => "infobox",
		2802	title => "Shop Items",
		2803	reply => undef,
		2804	tooltip => "Shows the items currently for sale in this shop",
		2805	},
		2806	"c/resistances" => {
		2807	id => "infobox",
		2808	title => "Resistances",
		2809	reply => undef,
		2810	tooltip => "Shows your resistances",
		2811	},
		2812	"c/pets" => {
		2813	id => "infobox",
		2814	title => "Pets",
		2815	reply => undef,
		2816	tooltip => "Shows information abotu your pets/a specific pet",
		2817	},
		2818	"c/perceiveself" => {
		2819	id => "infobox",
		2820	title => "Perceive Self",
		2821	reply => undef,
		2822	tooltip => "You gained detailed knowledge about yourself",
		2823	},
		2824	"c/uptime" => {
		2825	id => "infobox",
		2826	title => "Uptime",
		2827	reply => undef,
		2828	tooltip => "How long the server has been running since last restart",
		2829	},
		2830	"c/mapinfo" => {
		2831	id => "infobox",
		2832	title => "Map Info",
		2833	reply => undef,
		2834	tooltip => "Information related to the maps",
		2835	},
		2836	"c/party" => {
		2837	id => "party",
		2838	title => "Party",
		2839	reply => "gsay ",
		2840	tooltip => "Messages and chat related to your party",
		2841	},
		2842	"c/death" => {
		2843	id => "death",
		2844	title => "Death",
		2845	reply => undef,
		2846	tooltip => "Reason for and more info about your most recent death",
		2847	},
		2848	"c/say" => $SAY_CHANNEL,
		2849	"c/chat" => $CHAT_CHANNEL,
		2850	);
		2851
		2852	sub cf::client::send_msg {
		2853	my ($self, $channel, $msg, $color, @extra) = @_;
		2854
		2855	$msg = $self->pl->expand_cfpod ($msg)
		2856	unless $color & cf::NDI_VERBATIM;
		2857
		2858	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2859
		2860	# check predefined channels, for the benefit of C
		2861	if ($CHANNEL{$channel}) {
		2862	$channel = $CHANNEL{$channel};
		2863
		2864	$self->ext_msg (channel_info => $channel);
		2865	$channel = $channel->{id};
		2866
		2867	} elsif (ref $channel) {
		2868	# send meta info to client, if not yet sent
		2869	unless (exists $self->{channel}{$channel->{id}}) {
		2870	$self->{channel}{$channel->{id}} = $channel;
		2871	$self->ext_msg (channel_info => $channel);
		2872	}
		2873
		2874	$channel = $channel->{id};
		2875	}
		2876
		2877	return unless @extra || length $msg;
		2878
		2879	# default colour, mask it out
		2880	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2881	if $color & cf::NDI_DEF;
		2882
		2883	my $pkt = "msg "
		2884	. $self->{json_coder}->encode (
		2885	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2886	);
		2887
		2888	# try lzf for large packets
		2889	$pkt = "lzf " . Compress::LZF::compress $pkt
		2890	if 1024 <= length $pkt and $self->{can_lzf};
		2891
		2892	# split very large packets
		2893	if (8192 < length $pkt and $self->{can_lzf}) {
		2894	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2895	$pkt = "frag";
		2896	}
		2897
		2898	$self->send_packet ($pkt);
		2899	}
		2900
		2901	=item $client->ext_msg ($type, @msg)
		2902
		2903	Sends an ext event to the client.
		2904
		2905	=cut
		2906
		2907	sub cf::client::ext_msg($$@) {
		2908	my ($self, $type, @msg) = @_;
		2909
		2910	if ($self->extcmd == 2) {
		2911	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2912	} elsif ($self->extcmd == 1) { # TODO: remove
		2913	push @msg, msgtype => "event_$type";
		2914	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2915	}
		2916	}
		2917
		2918	=item $client->ext_reply ($msgid, @msg)
		2919
		2920	Sends an ext reply to the client.
		2921
		2922	=cut
		2923
		2924	sub cf::client::ext_reply($$@) {
		2925	my ($self, $id, @msg) = @_;
		2926
		2927	if ($self->extcmd == 2) {
		2928	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2929	} elsif ($self->extcmd == 1) {
		2930	#TODO: version 1, remove
		2931	unshift @msg, msgtype => "reply", msgid => $id;
		2932	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2933	}
		2934	}
1886		2935
1887	=item $success = $client->query ($flags, "text", \&cb)	2936	=item $success = $client->query ($flags, "text", \&cb)
1888		2937
1889	Queues a query to the client, calling the given callback with	2938	Queues a query to the client, calling the given callback with
1890	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2939	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1891	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2940	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1892		2941
1893	Queries can fail, so check the return code. Or don't, as queries will become	2942	Queries can fail, so check the return code. Or don't, as queries will
1894	reliable at some point in the future.	2943	become reliable at some point in the future.
1895		2944
1896	=cut	2945	=cut
1897		2946
1898	sub cf::client::query {	2947	sub cf::client::query {
1899	my ($self, $flags, $text, $cb) = @_;	2948	my ($self, $flags, $text, $cb) = @_;
…		…
1907	utf8::encode $text;	2956	utf8::encode $text;
1908	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2957	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1909		2958
1910	$self->send_packet ($self->{query_queue}[0][0])	2959	$self->send_packet ($self->{query_queue}[0][0])
1911	if @{ $self->{query_queue} } == 1;	2960	if @{ $self->{query_queue} } == 1;
		2961
		2962	1
1912	}	2963	}
1913		2964
1914	cf::client->attach (	2965	cf::client->attach (
		2966	on_connect => sub {
		2967	my ($ns) = @_;
		2968
		2969	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2970	},
1915	on_reply => sub {	2971	on_reply => sub {
1916	my ($ns, $msg) = @_;	2972	my ($ns, $msg) = @_;
1917		2973
1918	# this weird shuffling is so that direct followup queries	2974	# this weird shuffling is so that direct followup queries
1919	# get handled first	2975	# get handled first
1920	my $queue = delete $ns->{query_queue}	2976	my $queue = delete $ns->{query_queue}
1921	or return; # be conservative, not sure how that can happen, but we saw a crash here	2977	or return; # be conservative, not sure how that can happen, but we saw a crash here
1922		2978
1923	(shift @$queue)->[1]->($msg);	2979	(shift @$queue)->[1]->($msg);
		2980	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1924		2981
1925	push @{ $ns->{query_queue} }, @$queue;	2982	push @{ $ns->{query_queue} }, @$queue;
1926		2983
1927	if (@{ $ns->{query_queue} } == @$queue) {	2984	if (@{ $ns->{query_queue} } == @$queue) {
1928	if (@$queue) {	2985	if (@$queue) {
…		…
1930	} else {	2987	} else {
1931	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2988	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1932	}	2989	}
1933	}	2990	}
1934	},	2991	},
		2992	on_exticmd => sub {
		2993	my ($ns, $buf) = @_;
		2994
		2995	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2996
		2997	if (ref $msg) {
		2998	my ($type, $reply, @payload) =
		2999	"ARRAY" eq ref $msg
		3000	? @$msg
		3001	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3002
		3003	my @reply;
		3004
		3005	if (my $cb = $EXTICMD{$type}) {
		3006	@reply = $cb->($ns, @payload);
		3007	}
		3008
		3009	$ns->ext_reply ($reply, @reply)
		3010	if $reply;
		3011
		3012	} else {
		3013	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3014	}
		3015
		3016	cf::override;
		3017	},
1935	);	3018	);
1936		3019
1937	=item $client->async (\&cb)	3020	=item $client->async (\&cb)
1938		3021
1939	Create a new coroutine, running the specified callback. The coroutine will	3022	Create a new coroutine, running the specified callback. The coroutine will
…		…
1980	our $safe = new Safe "safe";	3063	our $safe = new Safe "safe";
1981	our $safe_hole = new Safe::Hole;	3064	our $safe_hole = new Safe::Hole;
1982		3065
1983	$SIG{FPE} = 'IGNORE';	3066	$SIG{FPE} = 'IGNORE';
1984		3067
1985	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3068	$safe->permit_only (Opcode::opset qw(
		3069	:base_core :base_mem :base_orig :base_math
		3070	grepstart grepwhile mapstart mapwhile
		3071	sort time
		3072	));
1986		3073
1987	# here we export the classes and methods available to script code	3074	# here we export the classes and methods available to script code
1988		3075
1989	=pod	3076	=pod
1990		3077
1991	The following fucntions and emthods are available within a safe environment:	3078	The following functions and methods are available within a safe environment:
1992		3079
1993	cf::object contr pay_amount pay_player map	3080	cf::object
		3081	contr pay_amount pay_player map x y force_find force_add destroy
		3082	insert remove name archname title slaying race decrease split
		3083	value
		3084
1994	cf::object::player player	3085	cf::object::player
1995	cf::player peaceful	3086	player
1996	cf::map trigger	3087
		3088	cf::player
		3089	peaceful
		3090
		3091	cf::map
		3092	trigger
1997		3093
1998	=cut	3094	=cut
1999		3095
2000	for (	3096	for (
2001	["cf::object" => qw(contr pay_amount pay_player map)],	3097	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3098	insert remove inv nrof name archname title slaying race
		3099	decrease split destroy change_exp value msg lore send_msg)],
2002	["cf::object::player" => qw(player)],	3100	["cf::object::player" => qw(player)],
2003	["cf::player" => qw(peaceful)],	3101	["cf::player" => qw(peaceful send_msg)],
2004	["cf::map" => qw(trigger)],	3102	["cf::map" => qw(trigger)],
2005	) {	3103	) {
2006	no strict 'refs';	3104	no strict 'refs';
2007	my ($pkg, @funs) = @$_;	3105	my ($pkg, @funs) = @$_;
2008	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3106	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2025	my ($code, %vars) = @_;	3123	my ($code, %vars) = @_;
2026		3124
2027	my $qcode = $code;	3125	my $qcode = $code;
2028	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3126	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2029	$qcode =~ s/\n/\\n/g;	3127	$qcode =~ s/\n/\\n/g;
		3128
		3129	%vars = (_dummy => 0) unless %vars;
2030		3130
2031	local $_;	3131	local $_;
2032	local @safe::cf::_safe_eval_args = values %vars;	3132	local @safe::cf::_safe_eval_args = values %vars;
2033		3133
2034	my $eval =	3134	my $eval =
…		…
2077	=back	3177	=back
2078		3178
2079	=cut	3179	=cut
2080		3180
2081	#############################################################################	3181	#############################################################################
		3182	# the server's init and main functions
2082		3183
2083	=head2 EXTENSION DATABASE SUPPORT	3184	sub load_facedata($) {
		3185	my ($path) = @_;
2084		3186
2085	Crossfire maintains a very simple database for extension use. It can	3187	# HACK to clear player env face cache, we need some signal framework
2086	currently store anything that can be serialised using Storable, which	3188	# for this (global event?)
2087	excludes objects.	3189	%ext::player_env::MUSIC_FACE_CACHE = ();
2088		3190
2089	The parameter C<$family> should best start with the name of the extension	3191	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2090	using it, it should be unique.
2091		3192
2092	=over 4	3193	warn "loading facedata from $path\n";
2093		3194
2094	=item $hashref = cf::db_get $family	3195	my $facedata;
		3196	0 < aio_load $path, $facedata
		3197	or die "$path: $!";
2095		3198
2096	Return a hashref for use by the extension C<$family>, which can be	3199	$facedata = Coro::Storable::thaw $facedata;
2097	modified. After modifications, you have to call C<cf::db_dirty> or
2098	C<cf::db_sync>.
2099		3200
2100	=item $value = cf::db_get $family => $key	3201	$facedata->{version} == 2
		3202	or cf::cleanup "$path: version mismatch, cannot proceed.";
2101		3203
2102	Returns a single value from the database	3204	# patch in the exptable
2103		3205	$facedata->{resource}{"res/exp_table"} = {
2104	=item cf::db_put $family => $hashref	3206	type => FT_RSRC,
2105		3207	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2106	Stores the given family hashref into the database. Updates are delayed, if
2107	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2108
2109	=item cf::db_put $family => $key => $value
2110
2111	Stores the given C<$value> in the family hash. Updates are delayed, if you
2112	want the data to be synced to disk immediately, use C<cf::db_sync>.
2113
2114	=item cf::db_dirty
2115
2116	Marks the database as dirty, to be updated at a later time.
2117
2118	=item cf::db_sync
2119
2120	Immediately write the database to disk I<if it is dirty>.
2121
2122	=cut
2123
2124	our $DB;
2125
2126	{
2127	my $path = cf::localdir . "/database.pst";
2128
2129	sub db_load() {
2130	$DB = stat $path ? Storable::retrieve $path : { };
2131	}
2132
2133	my $pid;
2134
2135	sub db_save() {
2136	waitpid $pid, 0 if $pid;
2137	if (0 == ($pid = fork)) {
2138	$DB->{_meta}{version} = 1;
2139	Storable::nstore $DB, "$path~";
2140	rename "$path~", $path;
2141	cf::_exit 0 if defined $pid;
2142	}
2143	}
2144
2145	my $dirty;
2146
2147	sub db_sync() {
2148	db_save if $dirty;
2149	undef $dirty;
2150	}
2151
2152	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2153	db_sync;
2154	});	3208	};
		3209	cf::cede_to_tick;
2155		3210
2156	sub db_dirty() {
2157	$dirty = 1;
2158	$idle->start;
2159	}	3211	{
		3212	my $faces = $facedata->{faceinfo};
2160		3213
2161	sub db_get($;$) {	3214	while (my ($face, $info) = each %$faces) {
2162	@_ >= 2	3215	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2163	? $DB->{$_[0]}{$_[1]}
2164	: ($DB->{$_[0]} ||= { })
2165	}
2166		3216
2167	sub db_put($$;$) {	3217	cf::face::set_visibility $idx, $info->{visibility};
2168	if (@_ >= 3) {	3218	cf::face::set_magicmap $idx, $info->{magicmap};
2169	$DB->{$_[0]}{$_[1]} = $_[2];	3219	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2170	} else {	3220	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2171	$DB->{$_[0]} = $_[1];
2172	}
2173	db_dirty;
2174	}
2175		3221
2176	cf::global->attach (	3222	cf::cede_to_tick;
2177	prio => 10000,
2178	on_cleanup => sub {
2179	db_sync;
2180	},	3223	}
2181	);
2182	}
2183		3224
2184	#############################################################################	3225	while (my ($face, $info) = each %$faces) {
2185	# the server's main()	3226	next unless $info->{smooth};
2186		3227
2187	sub cfg_load {	3228	my $idx = cf::face::find $face
		3229	or next;
		3230
		3231	if (my $smooth = cf::face::find $info->{smooth}) {
		3232	cf::face::set_smooth $idx, $smooth;
		3233	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3234	} else {
		3235	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3236	}
		3237
		3238	cf::cede_to_tick;
		3239	}
		3240	}
		3241
		3242	{
		3243	my $anims = $facedata->{animinfo};
		3244
		3245	while (my ($anim, $info) = each %$anims) {
		3246	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3247	cf::cede_to_tick;
		3248	}
		3249
		3250	cf::anim::invalidate_all; # d'oh
		3251	}
		3252
		3253	{
		3254	# TODO: for gcfclient pleasure, we should give resources
		3255	# that gcfclient doesn't grok a >10000 face index.
		3256	my $res = $facedata->{resource};
		3257
		3258	while (my ($name, $info) = each %$res) {
		3259	if (defined $info->{type}) {
		3260	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3261	my $data;
		3262
		3263	if ($info->{type} & 1) {
		3264	# prepend meta info
		3265
		3266	my $meta = $enc->encode ({
		3267	name => $name,
		3268	%{ $info->{meta} || {} },
		3269	});
		3270
		3271	$data = pack "(w/a*)*", $meta, $info->{data};
		3272	} else {
		3273	$data = $info->{data};
		3274	}
		3275
		3276	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3277	cf::face::set_type $idx, $info->{type};
		3278	} else {
		3279	$RESOURCE{$name} = $info;
		3280	}
		3281
		3282	cf::cede_to_tick;
		3283	}
		3284	}
		3285
		3286	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3287
		3288	1
		3289	}
		3290
		3291	cf::global->attach (on_resource_update => sub {
		3292	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3293	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3294
		3295	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3296	my $sound = $soundconf->{compat}[$_]
		3297	or next;
		3298
		3299	my $face = cf::face::find "sound/$sound->[1]";
		3300	cf::sound::set $sound->[0] => $face;
		3301	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3302	}
		3303
		3304	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3305	my $face = cf::face::find "sound/$v";
		3306	cf::sound::set $k => $face;
		3307	}
		3308	}
		3309	});
		3310
		3311	register_exticmd fx_want => sub {
		3312	my ($ns, $want) = @_;
		3313
		3314	while (my ($k, $v) = each %$want) {
		3315	$ns->fx_want ($k, $v);
		3316	}
		3317	};
		3318
		3319	sub load_resource_file($) {
		3320	my $guard = lock_acquire "load_resource_file";
		3321
		3322	my $status = load_resource_file_ $_[0];
		3323	get_slot 0.1, 100;
		3324	cf::arch::commit_load;
		3325
		3326	$status
		3327	}
		3328
		3329	sub reload_regions {
		3330	# HACK to clear player env face cache, we need some signal framework
		3331	# for this (global event?)
		3332	%ext::player_env::MUSIC_FACE_CACHE = ();
		3333
		3334	load_resource_file "$MAPDIR/regions"
		3335	or die "unable to load regions file\n";
		3336
		3337	for (cf::region::list) {
		3338	$_->{match} = qr/$_->{match}/
		3339	if exists $_->{match};
		3340	}
		3341	}
		3342
		3343	sub reload_facedata {
		3344	load_facedata "$DATADIR/facedata"
		3345	or die "unable to load facedata\n";
		3346	}
		3347
		3348	sub reload_archetypes {
		3349	load_resource_file "$DATADIR/archetypes"
		3350	or die "unable to load archetypes\n";
		3351	}
		3352
		3353	sub reload_treasures {
		3354	load_resource_file "$DATADIR/treasures"
		3355	or die "unable to load treasurelists\n";
		3356	}
		3357
		3358	sub reload_resources {
		3359	warn "reloading resource files...\n";
		3360
		3361	reload_facedata;
		3362	reload_archetypes;
		3363	reload_regions;
		3364	reload_treasures;
		3365
		3366	warn "finished reloading resource files\n";
		3367	}
		3368
		3369	sub reload_config {
2188	open my $fh, "<:utf8", cf::confdir . "/config"	3370	open my $fh, "<:utf8", "$CONFDIR/config"
2189	or return;	3371	or return;
2190		3372
2191	local $/;	3373	local $/;
2192	*CFG = YAML::Syck::Load <$fh>;	3374	*CFG = YAML::Load <$fh>;
2193		3375
2194	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3376	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2195		3377
2196	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3378	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2197	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3379	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2203	};	3385	};
2204	warn $@ if $@;	3386	warn $@ if $@;
2205	}	3387	}
2206	}	3388	}
2207		3389
		3390	sub pidfile() {
		3391	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3392	or die "$PIDFILE: $!";
		3393	flock $fh, &Fcntl::LOCK_EX
		3394	or die "$PIDFILE: flock: $!";
		3395	$fh
		3396	}
		3397
		3398	# make sure only one server instance is running at any one time
		3399	sub atomic {
		3400	my $fh = pidfile;
		3401
		3402	my $pid = <$fh>;
		3403	kill 9, $pid if $pid > 0;
		3404
		3405	seek $fh, 0, 0;
		3406	print $fh $$;
		3407	}
		3408
		3409	sub main_loop {
		3410	warn "EV::loop starting\n";
		3411	if (1) {
		3412	EV::loop;
		3413	}
		3414	warn "EV::loop returned\n";
		3415	goto &main_loop unless $REALLY_UNLOOP;
		3416	}
		3417
2208	sub main {	3418	sub main {
		3419	cf::init_globals; # initialise logging
		3420
		3421	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3422	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3423	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3424	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3425
		3426	cf::init_experience;
		3427	cf::init_anim;
		3428	cf::init_attackmess;
		3429	cf::init_dynamic;
		3430
		3431	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3432
2209	# we must not ever block the main coroutine	3433	# we must not ever block the main coroutine
2210	local $Coro::idle = sub {	3434	local $Coro::idle = sub {
2211	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3435	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2212	async { Event::one_event };	3436	(async {
		3437	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3438	EV::loop EV::LOOP_ONESHOT;
		3439	})->prio (Coro::PRIO_MAX);
2213	};	3440	};
2214		3441
2215	cfg_load;	3442	evthread_start IO::AIO::poll_fileno;
2216	db_load;	3443
		3444	cf::sync_job {
		3445	reload_resources;
		3446	reload_config;
		3447	db_init;
		3448
		3449	cf::load_settings;
		3450	cf::load_materials;
		3451	cf::init_uuid;
		3452	cf::init_signals;
		3453	cf::init_commands;
		3454	cf::init_skills;
		3455
		3456	cf::init_beforeplay;
		3457
		3458	atomic;
		3459
2217	load_extensions;	3460	load_extensions;
2218	Event::loop;	3461
		3462	utime time, time, $RUNTIMEFILE;
		3463
		3464	# no (long-running) fork's whatsoever before this point(!)
		3465	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3466
		3467	(pop @POST_INIT)->(0) while @POST_INIT;
		3468	};
		3469
		3470	main_loop;
2219	}	3471	}
2220		3472
2221	#############################################################################	3473	#############################################################################
2222	# initialisation and cleanup	3474	# initialisation and cleanup
2223		3475
2224	# install some emergency cleanup handlers	3476	# install some emergency cleanup handlers
2225	BEGIN {	3477	BEGIN {
		3478	our %SIGWATCHER = ();
2226	for my $signal (qw(INT HUP TERM)) {	3479	for my $signal (qw(INT HUP TERM)) {
2227	Event->signal (	3480	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2228	data => WF_AUTOCANCEL,
2229	signal => $signal,
2230	cb => sub {
2231	cf::cleanup "SIG$signal";	3481	cf::cleanup "SIG$signal";
2232	},
2233	);	3482	};
		3483	}
		3484	}
		3485
		3486	sub write_runtime_sync {
		3487	# first touch the runtime file to show we are still running:
		3488	# the fsync below can take a very very long time.
		3489
		3490	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3491
		3492	my $guard = cf::lock_acquire "write_runtime";
		3493
		3494	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3495	or return;
		3496
		3497	my $value = $cf::RUNTIME + 90 + 10;
		3498	# 10 is the runtime save interval, for a monotonic clock
		3499	# 60 allows for the watchdog to kill the server.
		3500
		3501	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3502	and return;
		3503
		3504	# always fsync - this file is important
		3505	aio_fsync $fh
		3506	and return;
		3507
		3508	# touch it again to show we are up-to-date
		3509	aio_utime $fh, undef, undef;
		3510
		3511	close $fh
		3512	or return;
		3513
		3514	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3515	and return;
		3516
		3517	warn "runtime file written.\n";
		3518
2234	}	3519	1
		3520	}
		3521
		3522	our $uuid_lock;
		3523	our $uuid_skip;
		3524
		3525	sub write_uuid_sync($) {
		3526	$uuid_skip ||= $_[0];
		3527
		3528	return if $uuid_lock;
		3529	local $uuid_lock = 1;
		3530
		3531	my $uuid = "$LOCALDIR/uuid";
		3532
		3533	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3534	or return;
		3535
		3536	my $value = uuid_seq uuid_cur;
		3537
		3538	unless ($value) {
		3539	warn "cowardly refusing to write zero uuid value!\n";
		3540	return;
		3541	}
		3542
		3543	my $value = uuid_str $value + $uuid_skip;
		3544	$uuid_skip = 0;
		3545
		3546	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3547	and return;
		3548
		3549	# always fsync - this file is important
		3550	aio_fsync $fh
		3551	and return;
		3552
		3553	close $fh
		3554	or return;
		3555
		3556	aio_rename "$uuid~", $uuid
		3557	and return;
		3558
		3559	warn "uuid file written ($value).\n";
		3560
		3561	1
		3562
		3563	}
		3564
		3565	sub write_uuid($$) {
		3566	my ($skip, $sync) = @_;
		3567
		3568	$sync ? write_uuid_sync $skip
		3569	: async { write_uuid_sync $skip };
2235	}	3570	}
2236		3571
2237	sub emergency_save() {	3572	sub emergency_save() {
2238	my $freeze_guard = cf::freeze_mainloop;	3573	my $freeze_guard = cf::freeze_mainloop;
2239		3574
2240	warn "enter emergency perl save\n";	3575	warn "emergency_perl_save: enter\n";
2241		3576
2242	cf::sync_job {	3577	cf::sync_job {
		3578	# this is a trade-off: we want to be very quick here, so
		3579	# save all maps without fsync, and later call a global sync
		3580	# (which in turn might be very very slow)
		3581	local $USE_FSYNC = 0;
		3582
2243	# use a peculiar iteration method to avoid tripping on perl	3583	# use a peculiar iteration method to avoid tripping on perl
2244	# refcount bugs in for. also avoids problems with players	3584	# refcount bugs in for. also avoids problems with players
2245	# and maps saved/destroyed asynchronously.	3585	# and maps saved/destroyed asynchronously.
2246	warn "begin emergency player save\n";	3586	warn "emergency_perl_save: begin player save\n";
2247	for my $login (keys %cf::PLAYER) {	3587	for my $login (keys %cf::PLAYER) {
2248	my $pl = $cf::PLAYER{$login} or next;	3588	my $pl = $cf::PLAYER{$login} or next;
2249	$pl->valid or next;	3589	$pl->valid or next;
		3590	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2250	$pl->save;	3591	$pl->save;
2251	}	3592	}
2252	warn "end emergency player save\n";	3593	warn "emergency_perl_save: end player save\n";
2253		3594
2254	warn "begin emergency map save\n";	3595	warn "emergency_perl_save: begin map save\n";
2255	for my $path (keys %cf::MAP) {	3596	for my $path (keys %cf::MAP) {
2256	my $map = $cf::MAP{$path} or next;	3597	my $map = $cf::MAP{$path} or next;
2257	$map->valid or next;	3598	$map->valid or next;
2258	$map->save;	3599	$map->save;
2259	}	3600	}
2260	warn "end emergency map save\n";	3601	warn "emergency_perl_save: end map save\n";
		3602
		3603	warn "emergency_perl_save: begin database checkpoint\n";
		3604	BDB::db_env_txn_checkpoint $DB_ENV;
		3605	warn "emergency_perl_save: end database checkpoint\n";
		3606
		3607	warn "emergency_perl_save: begin write uuid\n";
		3608	write_uuid_sync 1;
		3609	warn "emergency_perl_save: end write uuid\n";
2261	};	3610	};
2262		3611
		3612	warn "emergency_perl_save: starting sync()\n";
		3613	IO::AIO::aio_sync sub {
		3614	warn "emergency_perl_save: finished sync()\n";
		3615	};
		3616
2263	warn "leave emergency perl save\n";	3617	warn "emergency_perl_save: leave\n";
2264	}	3618	}
2265		3619
		3620	sub post_cleanup {
		3621	my ($make_core) = @_;
		3622
		3623	warn Carp::longmess "post_cleanup backtrace"
		3624	if $make_core;
		3625
		3626	my $fh = pidfile;
		3627	unlink $PIDFILE if <$fh> == $$;
		3628	}
		3629
		3630	# a safer delete_package, copied from Symbol
		3631	sub clear_package($) {
		3632	my $pkg = shift;
		3633
		3634	# expand to full symbol table name if needed
		3635	unless ($pkg =~ /^main::.*::$/) {
		3636	$pkg = "main$pkg" if $pkg =~ /^::/;
		3637	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3638	$pkg .= '::' unless $pkg =~ /::$/;
		3639	}
		3640
		3641	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3642	my $stem_symtab = *{$stem}{HASH};
		3643
		3644	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3645	or return;
		3646
		3647	# clear all symbols
		3648	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3649	for my $name (keys %$leaf_symtab) {
		3650	_gv_clear *{"$pkg$name"};
		3651	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3652	}
		3653	warn "cleared package $pkg\n";#d#
		3654	}
		3655
2266	sub reload() {	3656	sub do_reload_perl() {
2267	# can/must only be called in main	3657	# can/must only be called in main
2268	if ($Coro::current != $Coro::main) {	3658	if ($Coro::current != $Coro::main) {
2269	warn "can only reload from main coroutine\n";	3659	warn "can only reload from main coroutine";
2270	return;	3660	return;
2271	}	3661	}
2272		3662
		3663	return if $RELOAD++;
		3664
		3665	my $t1 = EV::time;
		3666
		3667	while ($RELOAD) {
2273	warn "reloading...";	3668	warn "reloading...";
2274		3669
2275	warn "freezing server";	3670	warn "entering sync_job";
2276	my $guard = freeze_mainloop;	3671
		3672	cf::sync_job {
		3673	cf::write_runtime_sync; # external watchdog should not bark
2277	cf::emergency_save;	3674	cf::emergency_save;
		3675	cf::write_runtime_sync; # external watchdog should not bark
2278		3676
2279	warn "sync database to disk";	3677	warn "syncing database to disk";
2280	cf::db_sync;	3678	BDB::db_env_txn_checkpoint $DB_ENV;
2281	IO::AIO::flush;
2282		3679
2283	eval {
2284	# if anything goes wrong in here, we should simply crash as we already saved	3680	# if anything goes wrong in here, we should simply crash as we already saved
2285		3681
2286	warn "cancel all watchers";	3682	warn "flushing outstanding aio requests";
2287	for (Event::all_watchers) {	3683	while (IO::AIO::nreqs || BDB::nreqs) {
2288	$_->cancel if $_->data & WF_AUTOCANCEL;	3684	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2289	}
2290
2291	warn "cancel all extension coros";
2292	$_->cancel for values %EXT_CORO;
2293	%EXT_CORO = ();
2294
2295	warn "remove commands";
2296	%COMMAND = ();
2297
2298	warn "remove ext commands";
2299	%EXTCMD = ();
2300
2301	warn "unload/nuke all extensions";
2302	for my $pkg (@EXTS) {
2303	warn "... unloading $pkg";
2304
2305	if (my $cb = $pkg->can ("unload")) {
2306	eval {
2307	$cb->($pkg);
2308	1
2309	} or warn "$pkg unloaded, but with errors: $@";
2310	}	3685	}
2311		3686
		3687	warn "cancelling all extension coros";
		3688	$_->cancel for values %EXT_CORO;
		3689	%EXT_CORO = ();
		3690
		3691	warn "removing commands";
		3692	%COMMAND = ();
		3693
		3694	warn "removing ext/exti commands";
		3695	%EXTCMD = ();
		3696	%EXTICMD = ();
		3697
		3698	warn "unloading/nuking all extensions";
		3699	for my $pkg (@EXTS) {
2312	warn "... nuking $pkg";	3700	warn "... unloading $pkg";
2313	Symbol::delete_package $pkg;
2314	}
2315		3701
2316	warn "unload all perl modules loaded from $LIBDIR";
2317	while (my ($k, $v) = each %INC) {
2318	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2319
2320	warn "removing <$k>";
2321	delete $INC{$k};
2322
2323	$k =~ s/\.pm$//;
2324	$k =~ s/\//::/g;
2325
2326	if (my $cb = $k->can ("unload_module")) {	3702	if (my $cb = $pkg->can ("unload")) {
		3703	eval {
2327	$cb->();	3704	$cb->($pkg);
		3705	1
		3706	} or warn "$pkg unloaded, but with errors: $@";
		3707	}
		3708
		3709	warn "... clearing $pkg";
		3710	clear_package $pkg;
2328	}	3711	}
2329		3712
2330	Symbol::delete_package $k;	3713	warn "unloading all perl modules loaded from $LIBDIR";
		3714	while (my ($k, $v) = each %INC) {
		3715	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3716
		3717	warn "... unloading $k";
		3718	delete $INC{$k};
		3719
		3720	$k =~ s/\.pm$//;
		3721	$k =~ s/\//::/g;
		3722
		3723	if (my $cb = $k->can ("unload_module")) {
		3724	$cb->();
		3725	}
		3726
		3727	clear_package $k;
2331	}	3728	}
2332		3729
2333	warn "get rid of safe::, as good as possible";	3730	warn "getting rid of safe::, as good as possible";
2334	Symbol::delete_package "safe::$_"	3731	clear_package "safe::$_"
2335	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3732	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2336		3733
2337	warn "unload cf.pm \"a bit\"";	3734	warn "unloading cf.pm \"a bit\"";
2338	delete $INC{"cf.pm"};	3735	delete $INC{"cf.pm"};
		3736	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2339		3737
2340	# don't, removes xs symbols, too,	3738	# don't, removes xs symbols, too,
2341	# and global variables created in xs	3739	# and global variables created in xs
2342	#Symbol::delete_package __PACKAGE__;	3740	#clear_package __PACKAGE__;
2343		3741
		3742	warn "unload completed, starting to reload now";
		3743
2344	warn "reloading cf.pm";	3744	warn "reloading cf.pm";
2345	require cf;	3745	require cf;
2346	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3746	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2347		3747
2348	warn "load config and database again";	3748	warn "loading config and database again";
2349	cf::cfg_load;	3749	cf::reload_config;
2350	cf::db_load;
2351		3750
2352	warn "load extensions";	3751	warn "loading extensions";
2353	cf::load_extensions;	3752	cf::load_extensions;
2354		3753
		3754	if ($REATTACH_ON_RELOAD) {
2355	warn "reattach attachments to objects/players";	3755	warn "reattaching attachments to objects/players";
2356	_global_reattach;	3756	_global_reattach; # objects, sockets
2357	warn "reattach attachments to maps";	3757	warn "reattaching attachments to maps";
2358	reattach $_ for values %MAP;	3758	reattach $_ for values %MAP;
		3759	warn "reattaching attachments to players";
		3760	reattach $_ for values %PLAYER;
		3761	}
		3762
		3763	warn "running post_init jobs";
		3764	(pop @POST_INIT)->(1) while @POST_INIT;
		3765
		3766	warn "leaving sync_job";
		3767
		3768	1
		3769	} or do {
		3770	warn $@;
		3771	cf::cleanup "error while reloading, exiting.";
		3772	};
		3773
		3774	warn "reloaded";
		3775	--$RELOAD;
		3776	}
		3777
		3778	$t1 = EV::time - $t1;
		3779	warn "reload completed in ${t1}s\n";
		3780	};
		3781
		3782	our $RELOAD_WATCHER; # used only during reload
		3783
		3784	sub reload_perl() {
		3785	# doing reload synchronously and two reloads happen back-to-back,
		3786	# coro crashes during coro_state_free->destroy here.
		3787
		3788	$RELOAD_WATCHER ||= cf::async {
		3789	Coro::AIO::aio_wait cache_extensions;
		3790
		3791	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3792	do_reload_perl;
		3793	undef $RELOAD_WATCHER;
		3794	};
2359	};	3795	};
2360		3796	}
2361	if ($@) {
2362	warn $@;
2363	warn "error while reloading, exiting.";
2364	exit 1;
2365	}
2366
2367	warn "reloaded";
2368	};
2369		3797
2370	register_command "reload" => sub {	3798	register_command "reload" => sub {
2371	my ($who, $arg) = @_;	3799	my ($who, $arg) = @_;
2372		3800
2373	if ($who->flag (FLAG_WIZ)) {	3801	if ($who->flag (FLAG_WIZ)) {
2374	$who->message ("start of reload.");
2375	reload;
2376	$who->message ("end of reload.");	3802	$who->message ("reloading server.");
		3803	async {
		3804	$Coro::current->{desc} = "perl_reload";
		3805	reload_perl;
		3806	};
2377	}	3807	}
2378	};	3808	};
2379		3809
2380	unshift @INC, $LIBDIR;	3810	unshift @INC, $LIBDIR;
2381		3811
2382	$TICK_WATCHER = Event->timer (	3812	my $bug_warning = 0;
2383	reentrant => 0,
2384	prio => 0,
2385	at => $NEXT_TICK || $TICK,
2386	data => WF_AUTOCANCEL,
2387	cb => sub {
2388	$NOW = Event::time;
2389		3813
		3814	our @WAIT_FOR_TICK;
		3815	our @WAIT_FOR_TICK_BEGIN;
		3816
		3817	sub wait_for_tick {
		3818	return if tick_inhibit || $Coro::current == $Coro::main;
		3819
		3820	my $signal = new Coro::Signal;
		3821	push @WAIT_FOR_TICK, $signal;
		3822	$signal->wait;
		3823	}
		3824
		3825	sub wait_for_tick_begin {
		3826	return if tick_inhibit || $Coro::current == $Coro::main;
		3827
		3828	my $signal = new Coro::Signal;
		3829	push @WAIT_FOR_TICK_BEGIN, $signal;
		3830	$signal->wait;
		3831	}
		3832
		3833	sub tick {
		3834	if ($Coro::current != $Coro::main) {
		3835	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3836	unless ++$bug_warning > 10;
		3837	return;
		3838	}
		3839
2390	cf::server_tick; # one server iteration	3840	cf::server_tick; # one server iteration
2391	$RUNTIME += $TICK;
2392	$NEXT_TICK += $TICK;
2393		3841
2394	$WAIT_FOR_TICK->broadcast;	3842	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2395	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3843	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2396		3844	Coro::async_pool {
2397	# if we are delayed by four ticks or more, skip them all	3845	$Coro::current->{desc} = "runtime saver";
2398	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2399
2400	$TICK_WATCHER->at ($NEXT_TICK);
2401	$TICK_WATCHER->start;
2402	},
2403	);
2404
2405	IO::AIO::max_poll_time $TICK * 0.2;
2406
2407	Event->io (
2408	fd => IO::AIO::poll_fileno,
2409	poll => 'r',
2410	prio => 5,
2411	data => WF_AUTOCANCEL,
2412	cb => \&IO::AIO::poll_cb,
2413	);
2414
2415	Event->timer (
2416	data => WF_AUTOCANCEL,
2417	after => 0,
2418	interval => 10,
2419	cb => sub {
2420	(Coro::unblock_sub {
2421	write_runtime	3846	write_runtime_sync
2422	or warn "ERROR: unable to write runtime file: $!";	3847	or warn "ERROR: unable to write runtime file: $!";
2423	})->();	3848	};
2424	},	3849	}
2425	);	3850
		3851	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3852	$sig->send;
		3853	}
		3854	while (my $sig = shift @WAIT_FOR_TICK) {
		3855	$sig->send;
		3856	}
		3857
		3858	$LOAD = ($NOW - $TICK_START) / $TICK;
		3859	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3860
		3861	if (0) {
		3862	if ($NEXT_TICK) {
		3863	my $jitter = $TICK_START - $NEXT_TICK;
		3864	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3865	warn "jitter $JITTER\n";#d#
		3866	}
		3867	}
		3868	}
		3869
		3870	{
		3871	# configure BDB
		3872
		3873	BDB::min_parallel 8;
		3874	BDB::max_poll_reqs $TICK * 0.1;
		3875	$AnyEvent::BDB::WATCHER->priority (1);
		3876
		3877	unless ($DB_ENV) {
		3878	$DB_ENV = BDB::db_env_create;
		3879	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3880	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3881	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3882	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3883	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3884
		3885	cf::sync_job {
		3886	eval {
		3887	BDB::db_env_open
		3888	$DB_ENV,
		3889	$BDBDIR,
		3890	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3891	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3892	0666;
		3893
		3894	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3895	};
		3896
		3897	cf::cleanup "db_env_open(db): $@" if $@;
		3898	};
		3899	}
		3900
		3901	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3902	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3903	};
		3904	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3905	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3906	};
		3907	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3908	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3909	};
		3910	}
		3911
		3912	{
		3913	# configure IO::AIO
		3914
		3915	IO::AIO::min_parallel 8;
		3916	IO::AIO::max_poll_time $TICK * 0.1;
		3917	undef $AnyEvent::AIO::WATCHER;
		3918	}
		3919
		3920	my $_log_backtrace;
		3921
		3922	sub _log_backtrace {
		3923	my ($msg, @addr) = @_;
		3924
		3925	$msg =~ s/\n//;
		3926
		3927	# limit the # of concurrent backtraces
		3928	if ($_log_backtrace < 2) {
		3929	++$_log_backtrace;
		3930	my $perl_bt = Carp::longmess $msg;
		3931	async {
		3932	$Coro::current->{desc} = "abt $msg";
		3933
		3934	my @bt = fork_call {
		3935	@addr = map { sprintf "%x", $_ } @addr;
		3936	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3937	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3938	or die "addr2line: $!";
		3939
		3940	my @funcs;
		3941	my @res = <$fh>;
		3942	chomp for @res;
		3943	while (@res) {
		3944	my ($func, $line) = splice @res, 0, 2, ();
		3945	push @funcs, "[$func] $line";
		3946	}
		3947
		3948	@funcs
		3949	};
		3950
		3951	LOG llevInfo, "[ABT] $perl_bt\n";
		3952	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3953	LOG llevInfo, "[ABT] $_\n" for @bt;
		3954	--$_log_backtrace;
		3955	};
		3956	} else {
		3957	LOG llevInfo, "[ABT] $msg\n";
		3958	LOG llevInfo, "[ABT] [suppressed]\n";
		3959	}
		3960	}
		3961
		3962	# load additional modules
		3963	require "cf/$_.pm" for @EXTRA_MODULES;
2426		3964
2427	END { cf::emergency_save }	3965	END { cf::emergency_save }
2428		3966
2429	1	3967	1
2430		3968

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