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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.207 by root, Sun Feb 11 22:42:09 2007 UTC vs.
Revision 1.476 by root, Wed Sep 2 16:54:20 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 3.5 ();	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 ();
20	use BDB ();	54	use BDB ();
21	use Data::Dumper;	55	use Data::Dumper;
22	use Digest::MD5;	56	use Digest::MD5;
23	use Fcntl;	57	use Fcntl;
		58	use YAML ();
24	use IO::AIO 2.32 ();	59	use IO::AIO ();
25	use YAML::Syck ();
26	use Time::HiRes;	60	use Time::HiRes;
		61	use Compress::LZF;
		62	use Digest::MD5 ();
27		63
28	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" };
29		79
30	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	80	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
31
32	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
33	$YAML::Syck::ImplicitUnicode = 1;
34
35	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
36		81
37	our %COMMAND = ();	82	our %COMMAND = ();
38	our %COMMAND_TIME = ();	83	our %COMMAND_TIME = ();
39		84
40	our @EXTS = (); # list of extension package names	85	our @EXTS = (); # list of extension package names
41	our %EXTCMD = ();	86	our %EXTCMD = ();
		87	our %EXTICMD = ();
42	our %EXT_CORO = (); # coroutines bound to extensions	88	our %EXT_CORO = (); # coroutines bound to extensions
43	our %EXT_MAP = (); # pluggable maps	89	our %EXT_MAP = (); # pluggable maps
44		90
		91	our $RELOAD; # number of reloads so far, non-zero while in reload
45	our @EVENT;	92	our @EVENT;
46	our $LIBDIR = datadir . "/ext";
47		93
48	our $TICK = MAX_TIME * 1e-6;	94	our $CONFDIR = confdir;
49	our $TICK_WATCHER;	95	our $DATADIR = datadir;
50	our $AIO_POLL_WATCHER;	96	our $LIBDIR = "$DATADIR/ext";
51	our $WRITE_RUNTIME_WATCHER;	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
52	our $NEXT_TICK;	112	our $NEXT_TICK;
53	our $NOW;
54	our $USE_FSYNC = 1; # use fsync to write maps - default off	113	our $USE_FSYNC = 1; # use fsync to write maps - default on
55		114
		115	our $BDB_DEADLOCK_WATCHER;
		116	our $BDB_CHECKPOINT_WATCHER;
56	our $BDB_POLL_WATCHER;	117	our $BDB_TRICKLE_WATCHER;
57	our $DB_ENV;	118	our $DB_ENV;
		119
		120	our @EXTRA_MODULES = qw(pod mapscript);
58		121
59	our %CFG;	122	our %CFG;
60		123
61	our $UPTIME; $UPTIME ||= time;	124	our $UPTIME; $UPTIME ||= time;
62	our $RUNTIME;	125	our $RUNTIME;
		126	our $NOW;
63		127
64	our %PLAYER; # all users	128	our (%PLAYER, %PLAYER_LOADING); # all users
65	our %MAP; # all maps	129	our (%MAP, %MAP_LOADING ); # all maps
66	our $LINK_MAP; # the special {link} map, which is always available	130	our $LINK_MAP; # the special {link} map, which is always available
67	our $RANDOM_MAPS = cf::localdir . "/random";
68	our $BDB_ENV_DIR = cf::localdir . "/db";
69
70	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
71	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
72		131
73	# 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 ∕
74	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	133	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
75		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 $REALLY_UNLOOP; # never set to true, please :)
		144
76	binmode STDOUT;	145	binmode STDOUT;
77	binmode STDERR;	146	binmode STDERR;
78		147
79	# read virtual server time, if available	148	# read virtual server time, if available
80	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	149	unless ($RUNTIME || !-e $RUNTIMEFILE) {
81	open my $fh, "<", cf::localdir . "/runtime"	150	open my $fh, "<", $RUNTIMEFILE
82	or die "unable to read runtime file: $!";	151	or die "unable to read $RUNTIMEFILE file: $!";
83	$RUNTIME = <$fh> + 0.;	152	$RUNTIME = <$fh> + 0.;
84	}	153	}
85		154
86	mkdir cf::localdir;	155	eval "sub TICK() { $TICK } 1" or die;
87	mkdir cf::localdir . "/" . cf::playerdir;	156
88	mkdir cf::localdir . "/" . cf::tmpdir;	157	mkdir $_
89	mkdir cf::localdir . "/" . cf::uniquedir;	158	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
90	mkdir $RANDOM_MAPS;
91	mkdir $BDB_ENV_DIR;
92		159
93	our $EMERGENCY_POSITION;	160	our $EMERGENCY_POSITION;
94		161
95	sub cf::map::normalise;	162	sub cf::map::normalise;
96		163
…		…
107	=item $cf::RUNTIME	174	=item $cf::RUNTIME
108		175
109	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
110	every server tick.	177	every server tick.
111		178
112	=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
113		182
114	The perl library directory, where extensions and cf-specific modules can	183	Various directories - "/etc", read-only install directory, perl-library
115	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.
116		187
117	=item $cf::NOW	188	=item $cf::NOW
118		189
119	The time of the last (current) server tick.	190	The time of the last (current) server tick.
120		191
121	=item $cf::TICK	192	=item $cf::TICK
122		193
123	The interval between server ticks, in seconds.	194	The interval between server ticks, in seconds.
124		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
125	=item %cf::CFG	206	=item %cf::CFG
126		207
127	Configuration for the server, loaded from C</etc/crossfire/config>, or	208	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
128	from wherever your confdir points to.	209	from wherever your confdir points to.
129		210
130	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	211	=item cf::wait_for_tick, cf::wait_for_tick_begin
131		212
132	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
133	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
134	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.
135	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.
136		222
137	=back	223	=back
138		224
139	=cut	225	=cut
140		226
141	BEGIN {	227	BEGIN {
142	*CORE::GLOBAL::warn = sub {	228	*CORE::GLOBAL::warn = sub {
143	my $msg = join "", @_;	229	my $msg = join "", @_;
144	utf8::encode $msg;
145		230
146	$msg .= "\n"	231	$msg .= "\n"
147	unless $msg =~ /\n$/;	232	unless $msg =~ /\n$/;
148		233
		234	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		235
149	LOG llevError, $msg;	236	LOG llevError, $msg;
150	};	237	};
151	}	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#?
152		254
153	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	255	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
154	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	256	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
155	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	257	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
156	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	258	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
157	@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';
158	@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)
159		262
160	# 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
161	# within the Safe compartment.	264	# within the Safe compartment.
162	for my $pkg (qw(	265	for my $pkg (qw(
163	cf::global cf::attachable	266	cf::global cf::attachable
164	cf::object cf::object::player	267	cf::object cf::object::player
165	cf::client cf::player	268	cf::client cf::player
166	cf::arch cf::living	269	cf::arch cf::living
		270	cf::map cf::mapspace
167	cf::map cf::party cf::region	271	cf::party cf::region
168	)) {	272	)) {
169	no strict 'refs';
170	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	273	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
171	}	274	}
172		275
173	$Event::DIED = sub {	276	$EV::DIED = sub {
174	warn "error in event callback: @_";	277	warn "error in event callback: @_";
175	};	278	};
		279
		280	#############################################################################
176		281
177	=head2 UTILITY FUNCTIONS	282	=head2 UTILITY FUNCTIONS
178		283
179	=over 4	284	=over 4
180		285
…		…
199	$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;
200	$d	305	$d
201	} || "[unable to dump $_[0]: '$@']";	306	} || "[unable to dump $_[0]: '$@']";
202	}	307	}
203		308
204	use JSON::Syck (); # TODO# replace by JSON::PC once working
205
206	=item $ref = cf::from_json $json	309	=item $ref = cf::decode_json $json
207		310
208	Converts a JSON string into the corresponding perl data structure.	311	Converts a JSON string into the corresponding perl data structure.
209		312
210	=cut
211
212	sub from_json($) {
213	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
214	JSON::Syck::Load $_[0]
215	}
216
217	=item $json = cf::to_json $ref	313	=item $json = cf::encode_json $ref
218		314
219	Converts a perl data structure into its JSON representation.	315	Converts a perl data structure into its JSON representation.
220		316
221	=cut	317	=cut
222		318
223	sub to_json($) {	319	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
224	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	320
225	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;
226	}	336	}
227		337
228	=item cf::lock_wait $string	338	=item cf::lock_wait $string
229		339
230	Wait until the given lock is available. See cf::lock_acquire.	340	Wait until the given lock is available. See cf::lock_acquire.
231		341
232	=item my $lock = cf::lock_acquire $string	342	=item my $lock = cf::lock_acquire $string
233		343
234	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
235	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,
236	for example when the coroutine gets canceled), the lock is automatically	346	for example when the coroutine gets canceled), the lock is automatically
237	returned.	347	returned.
238		348
		349	Locks are *not* recursive, locking from the same coro twice results in a
		350	deadlocked coro.
		351
239	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
240	uses map_find and cf::map::load uses map_load).	353	uses map_find and cf::map::load uses map_load).
241		354
242	=cut	355	=item $locked = cf::lock_active $string
243		356
244	our %LOCK;	357	Return true if the lock is currently active, i.e. somebody has locked it.
		358
		359	=cut
		360
		361	our $LOCKS = new Coro::SemaphoreSet;
245		362
246	sub lock_wait($) {	363	sub lock_wait($) {
247	my ($key) = @_;	364	$LOCKS->wait ($_[0]);
248
249	# wait for lock, if any
250	while ($LOCK{$key}) {
251	push @{ $LOCK{$key} }, $Coro::current;
252	Coro::schedule;
253	}
254	}	365	}
255		366
256	sub lock_acquire($) {	367	sub lock_acquire($) {
257	my ($key) = @_;	368	$LOCKS->guard ($_[0])
		369	}
258		370
259	# wait, to be sure we are not locked	371	sub lock_active($) {
260	lock_wait $key;	372	$LOCKS->count ($_[0]) < 1
261
262	$LOCK{$key} = [];
263
264	Coro::guard {
265	# wake up all waiters, to be on the safe side
266	$_->ready for @{ delete $LOCK{$key} };
267	}
268	}	373	}
269		374
270	sub freeze_mainloop {	375	sub freeze_mainloop {
271	return unless $TICK_WATCHER->is_active;	376	tick_inhibit_inc;
272		377
273	my $guard = Coro::guard {	378	&Guard::guard (\&tick_inhibit_dec);
274	$TICK_WATCHER->start;	379	}
275	$WRITE_RUNTIME_WATCHER->start;	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($$) {
		389	my ($interval, $cb) = @_;
		390
		391	my $start = rand List::Util::min 180, $interval;
		392
		393	EV::periodic $start, $interval, 0, $cb
		394	}
		395
		396	=item cf::get_slot $time[, $priority[, $name]]
		397
		398	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		399	This call blocks and returns only when you have at least C<$time> seconds
		400	of cpu time till the next tick. The slot is only valid till the next cede.
		401
		402	The optional C<$name> can be used to identify the job to run. It might be
		403	used for statistical purposes and should identify the same time-class.
		404
		405	Useful for short background jobs.
		406
		407	=cut
		408
		409	our @SLOT_QUEUE;
		410	our $SLOT_QUEUE;
		411
		412	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		413	$SLOT_QUEUE = Coro::async {
		414	$Coro::current->desc ("timeslot manager");
		415
		416	my $signal = new Coro::Signal;
		417
		418	while () {
		419	next_job:
		420	my $avail = cf::till_tick;
		421	if ($avail > 0.01) {
		422	for (0 .. $#SLOT_QUEUE) {
		423	if ($SLOT_QUEUE[$_][0] < $avail) {
		424	my $job = splice @SLOT_QUEUE, $_, 1, ();
		425	$job->[2]->send;
		426	Coro::cede;
		427	goto next_job;
		428	}
		429	}
		430	}
		431
		432	if (@SLOT_QUEUE) {
		433	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		434	push @cf::WAIT_FOR_TICK, $signal;
		435	$signal->wait;
		436	} else {
		437	Coro::schedule;
		438	}
276	};	439	}
277	$WRITE_RUNTIME_WATCHER->stop;	440	};
278	$TICK_WATCHER->stop;	441
279	$guard	442	sub get_slot($;$$) {
		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	$sig->wait;
280	}	454	}
281		455
282	=item cf::async { BLOCK }	456	=item cf::async { BLOCK }
283		457
284	Currently the same as Coro::async_pool, meaning you cannot use	458	Currently the same as Coro::async_pool, meaning you cannot use
…		…
289		463
290	BEGIN { *async = \&Coro::async_pool }	464	BEGIN { *async = \&Coro::async_pool }
291		465
292	=item cf::sync_job { BLOCK }	466	=item cf::sync_job { BLOCK }
293		467
294	The design of crossfire+ requires that the main coro ($Coro::main) is	468	The design of Deliantra requires that the main coroutine ($Coro::main)
295	always able to handle events or runnable, as crossfire+ is only partly	469	is always able to handle events or runnable, as Deliantra is only
296	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	470	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		471	acceptable.
297		472
298	If it must be done, put the blocking parts into C<sync_job>. This will run	473	If it must be done, put the blocking parts into C<sync_job>. This will run
299	the given BLOCK in another coroutine while waiting for the result. The	474	the given BLOCK in another coroutine while waiting for the result. The
300	server will be frozen during this time, so the block should either finish	475	server will be frozen during this time, so the block should either finish
301	fast or be very important.	476	fast or be very important.
…		…
304		479
305	sub sync_job(&) {	480	sub sync_job(&) {
306	my ($job) = @_;	481	my ($job) = @_;
307		482
308	if ($Coro::current == $Coro::main) {	483	if ($Coro::current == $Coro::main) {
		484	my $time = EV::time;
		485
309	# this is the main coro, too bad, we have to block	486	# this is the main coro, too bad, we have to block
310	# till the operation succeeds, freezing the server :/	487	# till the operation succeeds, freezing the server :/
311		488
312	# TODO: use suspend/resume instead	489	LOG llevError, Carp::longmess "sync job";#d#
313	# (but this is cancel-safe)	490
314	my $freeze_guard = freeze_mainloop;	491	my $freeze_guard = freeze_mainloop;
315		492
316	my $busy = 1;	493	my $busy = 1;
317	my @res;	494	my @res;
318		495
319	(async {	496	(async {
		497	$Coro::current->desc ("sync job coro");
320	@res = eval { $job->() };	498	@res = eval { $job->() };
321	warn $@ if $@;	499	warn $@ if $@;
322	undef $busy;	500	undef $busy;
323	})->prio (Coro::PRIO_MAX);	501	})->prio (Coro::PRIO_MAX);
324		502
325	while ($busy) {	503	while ($busy) {
326	Coro::cede or Event::one_event;	504	if (Coro::nready) {
		505	Coro::cede_notself;
		506	} else {
		507	EV::loop EV::LOOP_ONESHOT;
327	}	508	}
		509	}
		510
		511	my $time = EV::time - $time;
		512
		513	$TICK_START += $time; # do not account sync jobs to server load
328		514
329	wantarray ? @res : $res[0]	515	wantarray ? @res : $res[0]
330	} else {	516	} else {
331	# we are in another coroutine, how wonderful, everything just works	517	# we are in another coroutine, how wonderful, everything just works
332		518
…		…
352	$EXT_CORO{$coro+0} = $coro;	538	$EXT_CORO{$coro+0} = $coro;
353		539
354	$coro	540	$coro
355	}	541	}
356		542
357	sub write_runtime {	543	=item fork_call { }, $args
358	my $runtime = cf::localdir . "/runtime";
359		544
360	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	545	Executes the given code block with the given arguments in a seperate
361	or return;	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.
362		549
363	my $value = $cf::RUNTIME + 90 + 10;	550	=cut
364	# 10 is the runtime save interval, for a monotonic clock
365	# 60 allows for the watchdog to kill the server.
366		551
367	(aio_write $fh, 0, (length $value), $value, 0) <= 0	552	sub fork_call(&@) {
368	and return;	553	my ($cb, @args) = @_;
369		554
370	# always fsync - this file is important	555	# we seemingly have to make a local copy of the whole thing,
371	aio_fsync $fh	556	# otherwise perl prematurely frees the stuff :/
372	and return;	557	# TODO: investigate and fix (likely this will be rather laborious)
373		558
374	close $fh	559	my @res = Coro::Util::fork_eval {
375	or return;	560	reset_signals;
		561	&$cb
		562	}, @args;
376		563
377	aio_rename "$runtime~", $runtime	564	wantarray ? @res : $res[-1]
378	and return;	565	}
379		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($$) {
		636	my $key = "$_[0]/$_[1]";
		637
		638	cf::sync_job {
		639	BDB::db_get $DB, undef, $key, my $data;
		640
		641	$! ? ()
		642	: $data
380	1	643	}
		644	}
		645
		646	sub db_put($$$) {
		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 });
381	}	730	}
382		731
383	=back	732	=back
384		733
385	=cut	734	=cut
386		735
387	#############################################################################	736	#############################################################################
388		737
389	=head2 ATTACHABLE OBJECTS	738	=head2 ATTACHABLE OBJECTS
390		739
391	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
392	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")
393	to it. All such attachable objects support the following methods.	742	to it. All such attachable objects support the following methods.
394		743
395	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>
396	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
397	crossfire+).	746	Deliantra).
398		747
399	=over 4	748	=over 4
400		749
401	=item $attachable->attach ($attachment, key => $value...)	750	=item $attachable->attach ($attachment, key => $value...)
402		751
…		…
446	=item cf::CLASS::attachment $name, ...	795	=item cf::CLASS::attachment $name, ...
447		796
448	Register an attachment by C<$name> through which attachable objects of the	797	Register an attachment by C<$name> through which attachable objects of the
449	given CLASS can refer to this attachment.	798	given CLASS can refer to this attachment.
450		799
451	Some classes such as crossfire maps and objects can specify attachments	800	Some classes such as deliantra maps and objects can specify attachments
452	that are attached at load/instantiate time, thus the need for a name.	801	that are attached at load/instantiate time, thus the need for a name.
453		802
454	These calls expect any number of the following handler/hook descriptions:	803	These calls expect any number of the following handler/hook descriptions:
455		804
456	=over 4	805	=over 4
…		…
565	$registry = $CB_TYPE[$object_type] ||= [];	914	$registry = $CB_TYPE[$object_type] ||= [];
566		915
567	} elsif ($type eq "subtype") {	916	} elsif ($type eq "subtype") {
568	defined $object_type or Carp::croak "subtype specified without type";	917	defined $object_type or Carp::croak "subtype specified without type";
569	my $object_subtype = shift @arg;	918	my $object_subtype = shift @arg;
570	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	919	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
571		920
572	} elsif ($type eq "package") {	921	} elsif ($type eq "package") {
573	my $pkg = shift @arg;	922	my $pkg = shift @arg;
574		923
575	while (my ($name, $id) = each %cb_id) {	924	while (my ($name, $id) = each %cb_id) {
…		…
604	_attach $registry, $klass, @attach;	953	_attach $registry, $klass, @attach;
605	}	954	}
606		955
607	$obj->{$name} = \%arg;	956	$obj->{$name} = \%arg;
608	} else {	957	} else {
609	warn "object uses attachment '$name' that is not available, postponing.\n";	958	warn "object uses attachment '$name' which is not available, postponing.\n";
610	}	959	}
611		960
612	$obj->{_attachment}{$name} = undef;	961	$obj->{_attachment}{$name} = undef;
613	}	962	}
614		963
…		…
616	if (ref $_[0]) {	965	if (ref $_[0]) {
617	_object_attach @_;	966	_object_attach @_;
618	} else {	967	} else {
619	_attach shift->_attach_registry, @_;	968	_attach shift->_attach_registry, @_;
620	}	969	}
		970	_recalc_want;
621	};	971	};
622		972
623	# all those should be optimised	973	# all those should be optimised
624	sub cf::attachable::detach {	974	sub cf::attachable::detach {
625	my ($obj, $name) = @_;	975	my ($obj, $name) = @_;
…		…
628	delete $obj->{_attachment}{$name};	978	delete $obj->{_attachment}{$name};
629	reattach ($obj);	979	reattach ($obj);
630	} else {	980	} else {
631	Carp::croak "cannot, currently, detach class attachments";	981	Carp::croak "cannot, currently, detach class attachments";
632	}	982	}
		983	_recalc_want;
633	};	984	};
634		985
635	sub cf::attachable::attached {	986	sub cf::attachable::attached {
636	my ($obj, $name) = @_;	987	my ($obj, $name) = @_;
637		988
…		…
652	";	1003	";
653	die if $@;	1004	die if $@;
654	}	1005	}
655		1006
656	our $override;	1007	our $override;
657	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?
658		1009
659	sub override {	1010	sub override {
660	$override = 1;	1011	$override = 1;
661	@invoke_results = ();	1012	@INVOKE_RESULTS = (@_);
662	}	1013	}
663		1014
664	sub do_invoke {	1015	sub do_invoke {
665	my $event = shift;	1016	my $event = shift;
666	my $callbacks = shift;	1017	my $callbacks = shift;
667		1018
668	@invoke_results = ();	1019	@INVOKE_RESULTS = ();
669		1020
670	local $override;	1021	local $override;
671		1022
672	for (@$callbacks) {	1023	for (@$callbacks) {
673	eval { &{$_->[1]} };	1024	eval { &{$_->[1]} };
…		…
682	}	1033	}
683		1034
684	0	1035	0
685	}	1036	}
686		1037
687	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1038	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
688		1039
689	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1040	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
690		1041
691	Generate an object-specific event with the given arguments.	1042	Generate an object-specific event with the given arguments.
692		1043
693	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
694	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
695	results (if you must, access C<@cf::invoke_results> directly).	1046	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
696		1047
697	=back	1048	=back
698		1049
699	=cut	1050	=cut
700		1051
701	#############################################################################	1052	#############################################################################
702	# 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, $ob2
		1095	}
703		1096
704	sub reattach {	1097	sub reattach {
705	# basically do the same as instantiate, without calling instantiate	1098	# basically do the same as instantiate, without calling instantiate
706	my ($obj) = @_;	1099	my ($obj) = @_;
707		1100
		1101	# no longer needed after getting rid of delete_package?
708	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1102	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
709		1103
710	my $registry = $obj->registry;	1104	my $registry = $obj->registry;
711		1105
712	@$registry = ();	1106	@$registry = ();
713		1107
…		…
728	cf::attachable->attach (	1122	cf::attachable->attach (
729	prio => -1000000,	1123	prio => -1000000,
730	on_instantiate => sub {	1124	on_instantiate => sub {
731	my ($obj, $data) = @_;	1125	my ($obj, $data) = @_;
732		1126
733	$data = from_json $data;	1127	$data = decode_json $data;
734		1128
735	for (@$data) {	1129	for (@$data) {
736	my ($name, $args) = @$_;	1130	my ($name, $args) = @$_;
737		1131
738	$obj->attach ($name, %{$args || {} });	1132	$obj->attach ($name, %{$args || {} });
…		…
754	sub object_freezer_save {	1148	sub object_freezer_save {
755	my ($filename, $rdata, $objs) = @_;	1149	my ($filename, $rdata, $objs) = @_;
756		1150
757	sync_job {	1151	sync_job {
758	if (length $$rdata) {	1152	if (length $$rdata) {
		1153	utf8::decode (my $decname = $filename);
759	warn sprintf "saving %s (%d,%d)\n",	1154	warn sprintf "saving %s (%d,%d)\n",
760	$filename, length $$rdata, scalar @$objs;	1155	$decname, length $$rdata, scalar @$objs;
761		1156
762	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1157	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
763	chmod SAVE_MODE, $fh;	1158	aio_chmod $fh, SAVE_MODE;
764	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1159	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
765	aio_fsync $fh if $cf::USE_FSYNC;	1160	if ($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;
		1162	aio_fsync $fh;
		1163	}
766	close $fh;	1164	aio_close $fh;
767		1165
768	if (@$objs) {	1166	if (@$objs) {
769	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) {
770	chmod SAVE_MODE, $fh;	1168	aio_chmod $fh, SAVE_MODE;
771	my $data = Storable::nfreeze { version => 1, objs => $objs };	1169	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
772	aio_write $fh, 0, (length $data), $data, 0;	1170	aio_write $fh, 0, (length $data), $data, 0;
773	aio_fsync $fh if $cf::USE_FSYNC;	1171	if ($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;
		1173	aio_fsync $fh;
		1174	}
774	close $fh;	1175	aio_close $fh;
775	aio_rename "$filename.pst~", "$filename.pst";	1176	aio_rename "$filename.pst~", "$filename.pst";
776	}	1177	}
777	} else {	1178	} else {
778	aio_unlink "$filename.pst";	1179	aio_unlink "$filename.pst";
779	}	1180	}
780		1181
781	aio_rename "$filename~", $filename;	1182	aio_rename "$filename~", $filename;
		1183
		1184	$filename =~ s%/[^/]+$%%;
		1185	aio_pathsync $filename if $cf::USE_FSYNC;
782	} else {	1186	} else {
783	warn "FATAL: $filename~: $!\n";	1187	warn "unable to save objects: $filename~: $!\n";
784	}	1188	}
785	} else {	1189	} else {
786	aio_unlink $filename;	1190	aio_unlink $filename;
787	aio_unlink "$filename.pst";	1191	aio_unlink "$filename.pst";
788	}	1192	}
789
790	#d##TODO# nuke non .map-files if exist
791	if ($filename =~ s/\.map$//) {
792	aio_unlink $filename;
793	aio_unlink "$filename.pst";
794	}
795	}	1193	};
796	}	1194	}
797		1195
798	sub object_freezer_as_string {	1196	sub object_freezer_as_string {
799	my ($rdata, $objs) = @_;	1197	my ($rdata, $objs) = @_;
800		1198
…		…
805		1203
806	sub object_thawer_load {	1204	sub object_thawer_load {
807	my ($filename) = @_;	1205	my ($filename) = @_;
808		1206
809	my ($data, $av);	1207	my ($data, $av);
810
811	#d#TODO remove .map if file does not exist
812	aio_stat $filename and $filename =~ s/\.map$//;
813		1208
814	(aio_load $filename, $data) >= 0	1209	(aio_load $filename, $data) >= 0
815	or return;	1210	or return;
816		1211
817	unless (aio_stat "$filename.pst") {	1212	unless (aio_stat "$filename.pst") {
818	(aio_load "$filename.pst", $av) >= 0	1213	(aio_load "$filename.pst", $av) >= 0
819	or return;	1214	or return;
		1215
820	$av = eval { (Storable::thaw $av)->{objs} };	1216	my $st = eval { Coro::Storable::thaw $av };
		1217	$av = $st->{objs};
821	}	1218	}
822		1219
		1220	utf8::decode (my $decname = $filename);
823	warn sprintf "loading %s (%d)\n",	1221	warn sprintf "loading %s (%d,%d)\n",
824	$filename, length $data, scalar @{$av || []};#d#	1222	$decname, length $data, scalar @{$av || []};
		1223
825	return ($data, $av);	1224	($data, $av)
826	}	1225	}
		1226
		1227	=head2 COMMAND CALLBACKS
		1228
		1229	=over 4
		1230
		1231	=cut
827		1232
828	#############################################################################	1233	#############################################################################
829	# command handling &c	1234	# command handling &c
830		1235
831	=item cf::register_command $name => \&callback($ob,$args);	1236	=item cf::register_command $name => \&callback($ob,$args);
…		…
844	push @{ $COMMAND{$name} }, [$caller, $cb];	1249	push @{ $COMMAND{$name} }, [$caller, $cb];
845	}	1250	}
846		1251
847	=item cf::register_extcmd $name => \&callback($pl,$packet);	1252	=item cf::register_extcmd $name => \&callback($pl,$packet);
848		1253
849	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.
850		1259
851	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
852	called.	1261	called.
853		1262
		1263	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1264
		1265	Register a callback for execution when the client sends an (asynchronous)
		1266	exticmd packet. Exti commands are processed by the server as soon as they
		1267	are received, i.e. out of order w.r.t. other commands. The first argument
		1268	is a client socket. Exti commands can be received anytime, even before
		1269	log-in.
		1270
		1271	If the callback returns something, it is sent back as if reply was being
		1272	called.
		1273
854	=cut	1274	=cut
855		1275
856	sub register_extcmd {	1276	sub register_extcmd {
857	my ($name, $cb) = @_;	1277	my ($name, $cb) = @_;
858		1278
859	$EXTCMD{$name} = $cb;	1279	$EXTCMD{$name} = $cb;
860	}	1280	}
		1281
		1282	sub register_exticmd {
		1283	my ($name, $cb) = @_;
		1284
		1285	$EXTICMD{$name} = $cb;
		1286	}
		1287
		1288	use File::Glob ();
861		1289
862	cf::player->attach (	1290	cf::player->attach (
863	on_command => sub {	1291	on_command => sub {
864	my ($pl, $name, $params) = @_;	1292	my ($pl, $name, $params) = @_;
865		1293
…		…
873	cf::override;	1301	cf::override;
874	},	1302	},
875	on_extcmd => sub {	1303	on_extcmd => sub {
876	my ($pl, $buf) = @_;	1304	my ($pl, $buf) = @_;
877		1305
878	my $msg = eval { from_json $buf };	1306	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
879		1307
880	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
881	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1316	if (my $cb = $EXTCMD{$type}) {
882	if (my %reply = $cb->($pl, $msg)) {	1317	@reply = $cb->($pl, @payload);
883	$pl->ext_reply ($msg->{msgid}, %reply);
884	}
885	}	1318	}
		1319
		1320	$pl->ext_reply ($reply, @reply)
		1321	if $reply;
		1322
886	} else {	1323	} else {
887	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1324	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
888	}	1325	}
889		1326
890	cf::override;	1327	cf::override;
891	},	1328	},
892	);	1329	);
893		1330
		1331	# "readahead" all extensions
894	sub load_extension {	1332	sub cache_extensions {
895	my ($path) = @_;	1333	my $grp = IO::AIO::aio_group;
896		1334
897	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1335	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
898	my $base = $1;	1336	for (grep /\.ext$/, @{$_[0]}) {
899	my $pkg = $1;	1337	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
900	$pkg =~ s/[^[:word:]]/_/g;
901	$pkg = "ext::$pkg";
902
903	warn "... loading '$path' into '$pkg'\n";
904
905	open my $fh, "<:utf8", $path
906	or die "$path: $!";
907
908	my $source =
909	"package $pkg; use strict; use utf8;\n"
910	. "#line 1 \"$path\"\n{\n"
911	. (do { local $/; <$fh> })
912	. "\n};\n1";
913
914	unless (eval $source) {
915	my $msg = $@ ? "$path: $@\n"
916	: "extension disabled.\n";
917	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
918	warn $@;
919	warn "mandatory extension failed to load, exiting.\n";
920	exit 1;
921	}	1338	}
922	die $@;
923	}	1339	};
924		1340
925	push @EXTS, $pkg;	1341	$grp
926	}	1342	}
927		1343
928	sub load_extensions {	1344	sub load_extensions {
		1345	cf::sync_job {
		1346	my %todo;
		1347
929	for my $ext (<$LIBDIR/*.ext>) {	1348	for my $path (<$LIBDIR/*.ext>) {
930	next unless -r $ext;	1349	next unless -r $path;
931	eval {	1350
932	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	$progress = 1;
933	1	1407	}
934	} or warn "$ext not loaded: $@";	1408
		1409	skip:
		1410	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1411	unless $progress;
		1412	}
935	}	1413	};
936	}	1414	}
937		1415
938	#############################################################################	1416	#############################################################################
939		1417
		1418	=back
		1419
940	=head2 CORE EXTENSIONS	1420	=head2 CORE EXTENSIONS
941		1421
942	Functions and methods that extend core crossfire objects.	1422	Functions and methods that extend core deliantra objects.
943		1423
944	=cut	1424	=cut
945		1425
946	package cf::player;	1426	package cf::player;
947		1427
…		…
949		1429
950	=head3 cf::player	1430	=head3 cf::player
951		1431
952	=over 4	1432	=over 4
953		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
954	=item cf::player::find $login	1448	=item cf::player::find $login
955		1449
956	Returns the given player object, loading it if necessary (might block).	1450	Returns the given player object, loading it if necessary (might block).
957		1451
958	=cut	1452	=cut
959		1453
960	sub playerdir($) {	1454	sub playerdir($) {
961	cf::localdir	1455	"$PLAYERDIR/"
962	. "/"
963	. cf::playerdir
964	. "/"
965	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1456	. (ref $_[0] ? $_[0]->ob->name : $_[0])
966	}	1457	}
967		1458
968	sub path($) {	1459	sub path($) {
969	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1460	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
970		1461
971	(playerdir $login) . "/$login.pl"	1462	(playerdir $login) . "/playerdata"
972	}	1463	}
973		1464
974	sub find_active($) {	1465	sub find_active($) {
975	$cf::PLAYER{$_[0]}	1466	$cf::PLAYER{$_[0]}
976	and $cf::PLAYER{$_[0]}->active	1467	and $cf::PLAYER{$_[0]}->active
…		…
979		1470
980	sub exists($) {	1471	sub exists($) {
981	my ($login) = @_;	1472	my ($login) = @_;
982		1473
983	$cf::PLAYER{$login}	1474	$cf::PLAYER{$login}
984	or cf::sync_job { !aio_stat path $login }	1475	or !aio_stat path $login
985	}	1476	}
986		1477
987	sub find($) {	1478	sub find($) {
988	return $cf::PLAYER{$_[0]} || do {	1479	return $cf::PLAYER{$_[0]} || do {
989	my $login = $_[0];	1480	my $login = $_[0];
990		1481
991	my $guard = cf::lock_acquire "user_find:$login";	1482	my $guard = cf::lock_acquire "user_find:$login";
992		1483
993	$cf::PLAYER{$_[0]} || do {	1484	$cf::PLAYER{$_[0]} || do {
994	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
995	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;
996	$cf::PLAYER{$login} = $pl	1500	$cf::PLAYER{$login} = $pl
997	}	1501	}
998	}	1502	}
999	}	1503	}
1000		1504
…		…
1009	return if $pl->{deny_save};	1513	return if $pl->{deny_save};
1010		1514
1011	aio_mkdir playerdir $pl, 0770;	1515	aio_mkdir playerdir $pl, 0770;
1012	$pl->{last_save} = $cf::RUNTIME;	1516	$pl->{last_save} = $cf::RUNTIME;
1013		1517
		1518	cf::get_slot 0.01;
		1519
1014	$pl->save_pl ($path);	1520	$pl->save_pl ($path);
1015	Coro::cede;	1521	cf::cede_to_tick;
1016	}	1522	}
1017		1523
1018	sub new($) {	1524	sub new($) {
1019	my ($login) = @_;	1525	my ($login) = @_;
1020		1526
…		…
1026	$cf::PLAYER{$login} = $self;	1532	$cf::PLAYER{$login} = $self;
1027		1533
1028	$self	1534	$self
1029	}	1535	}
1030		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
1031	=item $pl->quit_character	1547	=item $pl->quit_character
1032		1548
1033	Nukes the player without looking back. If logged in, the connection will	1549	Nukes the player without looking back. If logged in, the connection will
1034	be destroyed. May block for a long time.	1550	be destroyed. May block for a long time.
1035		1551
1036	=cut	1552	=cut
1037		1553
1038	sub quit_character {	1554	sub quit_character {
1039	my ($pl) = @_;	1555	my ($pl) = @_;
1040		1556
		1557	my $name = $pl->ob->name;
		1558
1041	$pl->{deny_save} = 1;	1559	$pl->{deny_save} = 1;
1042	$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
1043		1561
1044	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1562	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1045	$pl->deactivate;	1563	$pl->deactivate;
		1564	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1565	$pl->ob->check_score;
1046	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1566	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1047	$pl->ns->destroy if $pl->ns;	1567	$pl->ns->destroy if $pl->ns;
1048		1568
1049	my $path = playerdir $pl;	1569	my $path = playerdir $pl;
1050	my $temp = "$path~$cf::RUNTIME~deleting~";	1570	my $temp = "$path~$cf::RUNTIME~deleting~";
1051	aio_rename $path, $temp;	1571	aio_rename $path, $temp;
1052	delete $cf::PLAYER{$pl->ob->name};	1572	delete $cf::PLAYER{$pl->ob->name};
1053	$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
1054	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;
1055	}	1595	}
1056		1596
1057	=item cf::player::list_logins	1597	=item cf::player::list_logins
1058		1598
1059	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
1060	while and may block, so not sync_job-capable, ever.	1600	while and may block, so not sync_job-capable, ever.
1061		1601
1062	=cut	1602	=cut
1063		1603
1064	sub list_logins {	1604	sub list_logins {
1065	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1605	my $dirs = aio_readdir $PLAYERDIR
1066	or return [];	1606	or return [];
1067		1607
1068	my @logins;	1608	my @logins;
1069		1609
1070	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") {
1071	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1616	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1072	aio_read $fh, 0, 512, my $buf, 0 or next;	1617	aio_read $fh, 0, 512, my $buf, 0 or next;
1073	$buf !~ /^password -------------$/m or next; # official not-valid tag	1618	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1619	}
1074		1620
1075	utf8::decode $login;	1621	utf8::decode $login;
1076	push @logins, $login;	1622	push @logins, $login;
1077	}	1623	}
1078		1624
…		…
1105	}	1651	}
1106		1652
1107	\@paths	1653	\@paths
1108	}	1654	}
1109		1655
		1656	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1657
		1658	Expand deliantra pod fragments into protocol xml.
		1659
1110	=item $player->ext_reply ($msgid, $msgtype, %msg)	1660	=item $player->ext_reply ($msgid, @msg)
1111		1661
1112	Sends an ext reply to the player.	1662	Sends an ext reply to the player.
1113		1663
1114	=cut	1664	=cut
1115		1665
1116	sub ext_reply($$$%) {	1666	sub ext_reply($$@) {
1117	my ($self, $id, %msg) = @_;	1667	my ($self, $id, @msg) = @_;
1118		1668
1119	$msg{msgid} = $id;	1669	$self->ns->ext_reply ($id, @msg)
1120
1121	$self->send ("ext " . cf::to_json \%msg);
1122	}	1670	}
1123		1671
1124	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	}
1125		1712
1126	=back	1713	=back
1127
1128		1714
1129	=head3 cf::map	1715	=head3 cf::map
1130		1716
1131	=over 4	1717	=over 4
1132		1718
…		…
1144	our $MAX_RESET = 3600;	1730	our $MAX_RESET = 3600;
1145	our $DEFAULT_RESET = 3000;	1731	our $DEFAULT_RESET = 3000;
1146		1732
1147	sub generate_random_map {	1733	sub generate_random_map {
1148	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
		1737
1149	# mit "rum" bekleckern, nicht	1738	# mit "rum" bekleckern, nicht
1150	$self->_create_random_map (	1739	$self->_create_random_map (
1151	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1740	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1152	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1741	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1153	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1742	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1187	my ($self, $merge) = @_;	1776	my ($self, $merge) = @_;
1188		1777
1189	# we have to keep some variables in memory intact	1778	# we have to keep some variables in memory intact
1190	local $self->{path};	1779	local $self->{path};
1191	local $self->{load_path};	1780	local $self->{load_path};
1192	local $self->{deny_save};
1193	local $self->{deny_reset};
1194		1781
1195	$self->SUPER::thawer_merge ($merge);	1782	$self->SUPER::thawer_merge ($merge);
1196	}	1783	}
1197		1784
1198	sub normalise {	1785	sub normalise {
…		…
1245	$self->init; # pass $1 etc.	1832	$self->init; # pass $1 etc.
1246	return $self;	1833	return $self;
1247	}	1834	}
1248	}	1835	}
1249		1836
1250	Carp::carp "unable to resolve path '$path' (base '$base').";	1837	Carp::cluck "unable to resolve path '$path' (base '$base').";
1251	()	1838	()
1252	}	1839	}
1253		1840
1254	sub init {	1841	sub init {
1255	my ($self) = @_;	1842	my ($self) = @_;
…		…
1270		1857
1271	# the original (read-only) location	1858	# the original (read-only) location
1272	sub load_path {	1859	sub load_path {
1273	my ($self) = @_;	1860	my ($self) = @_;
1274		1861
1275	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1862	"$MAPDIR/$self->{path}.map"
1276	}	1863	}
1277		1864
1278	# the temporary/swap location	1865	# the temporary/swap location
1279	sub save_path {	1866	sub save_path {
1280	my ($self) = @_;	1867	my ($self) = @_;
1281		1868
1282	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1869	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1283	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1870	"$TMPDIR/$path.map"
1284	}	1871	}
1285		1872
1286	# the unique path, undef == no special unique path	1873	# the unique path, undef == no special unique path
1287	sub uniq_path {	1874	sub uniq_path {
1288	my ($self) = @_;	1875	my ($self) = @_;
1289		1876
1290	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1877	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1291	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1878	"$UNIQUEDIR/$path"
1292	}	1879	}
1293		1880
1294	# and all this just because we cannot iterate over	1881	sub decay_objects {
1295	# all maps in C++...
1296	sub change_all_map_light {
1297	my ($change) = @_;	1882	my ($self) = @_;
1298		1883
1299	$_->change_map_light ($change)	1884	return if $self->{deny_reset};
1300	for grep $_->outdoor, values %cf::MAP;	1885
		1886	$self->do_decay_objects;
1301	}	1887	}
1302		1888
1303	sub unlink_save {	1889	sub unlink_save {
1304	my ($self) = @_;	1890	my ($self) = @_;
1305		1891
1306	utf8::encode (my $save = $self->save_path);	1892	utf8::encode (my $save = $self->save_path);
1307	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1893	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1308	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1894	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1309
1310	#d#TODO remove .map and also nuke
1311	$save =~ s/\.map// or return;#d#
1312	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1313	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1314	}	1895	}
1315		1896
1316	sub load_header_from($) {	1897	sub load_header_from($) {
1317	my ($self, $path) = @_;	1898	my ($self, $path) = @_;
1318		1899
1319	utf8::encode $path;	1900	utf8::encode $path;
1320	#aio_open $path, O_RDONLY, 0	1901	my $f = new_from_file cf::object::thawer $path
1321	# or return;
1322
1323	$self->_load_header ($path)
1324	or return;	1902	or return;
		1903
		1904	$self->_load_header ($f)
		1905	or return;
		1906
		1907	local $MAP_LOADING{$self->{path}} = $self;
		1908	$f->resolve_delayed_derefs;
1325		1909
1326	$self->{load_path} = $path;	1910	$self->{load_path} = $path;
1327		1911
1328	1	1912	1
1329	}	1913	}
…		…
1368	$self->load_header_orig	1952	$self->load_header_orig
1369	or return;	1953	or return;
1370	$self->prepare_orig;	1954	$self->prepare_orig;
1371	}	1955	}
1372		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;
		1962
1373	1	1963	1
1374	}	1964	}
1375		1965
1376	sub find;	1966	sub find;
1377	sub find {	1967	sub find {
1378	my ($path, $origin) = @_;	1968	my ($path, $origin) = @_;
1379		1969
1380	$path = normalise $path, $origin && $origin->path;	1970	$path = normalise $path, $origin && $origin->path;
1381		1971
		1972	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1382	cf::lock_wait "map_find:$path";	1973	my $guard2 = cf::lock_acquire "map_find:$path";
1383		1974
1384	$cf::MAP{$path} || do {	1975	$cf::MAP{$path} || do {
1385	my $guard = cf::lock_acquire "map_find:$path";
1386	my $map = new_from_path cf::map $path	1976	my $map = new_from_path cf::map $path
1387	or return;	1977	or return;
1388		1978
1389	$map->{last_save} = $cf::RUNTIME;	1979	$map->{last_save} = $cf::RUNTIME;
1390		1980
1391	$map->load_header	1981	$map->load_header
1392	or return;	1982	or return;
1393		1983
1394	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1984	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1395	# doing this can freeze the server in a sync job, obviously	1985	# doing this can freeze the server in a sync job, obviously
1396	#$cf::WAIT_FOR_TICK->wait;	1986	#$cf::WAIT_FOR_TICK->wait;
		1987	undef $guard2;
		1988	undef $guard1;
1397	$map->reset;	1989	$map->reset;
1398	undef $guard;
1399	return find $path;	1990	return find $path;
1400	}	1991	}
1401		1992
1402	$cf::MAP{$path} = $map	1993	$cf::MAP{$path} = $map
1403	}	1994	}
…		…
1410	my ($self) = @_;	2001	my ($self) = @_;
1411		2002
1412	local $self->{deny_reset} = 1; # loading can take a long time	2003	local $self->{deny_reset} = 1; # loading can take a long time
1413		2004
1414	my $path = $self->{path};	2005	my $path = $self->{path};
		2006
		2007	{
1415	my $guard = cf::lock_acquire "map_load:$path";	2008	my $guard = cf::lock_acquire "map_data:$path";
1416		2009
		2010	return unless $self->valid;
1417	return if $self->in_memory != cf::MAP_SWAPPED;	2011	return unless $self->in_memory == cf::MAP_SWAPPED;
1418		2012
1419	$self->in_memory (cf::MAP_LOADING);	2013	$self->in_memory (cf::MAP_LOADING);
1420		2014
1421	$self->alloc;	2015	$self->alloc;
1422		2016
1423	$self->pre_load;	2017	$self->pre_load;
		2018	cf::cede_to_tick;
1424		2019
1425	$self->_load_objects ($self->{load_path}, 1)	2020	my $f = new_from_file cf::object::thawer $self->{load_path};
		2021	$f->skip_block;
		2022	$self->_load_objects ($f)
1426	or return;	2023	or return;
1427		2024
1428	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2025	$self->post_load_original
1429	if delete $self->{load_original};	2026	if delete $self->{load_original};
1430		2027
1431	if (my $uniq = $self->uniq_path) {	2028	if (my $uniq = $self->uniq_path) {
1432	utf8::encode $uniq;	2029	utf8::encode $uniq;
1433	if (aio_open $uniq, O_RDONLY, 0) {	2030	unless (aio_stat $uniq) {
		2031	if (my $f = new_from_file cf::object::thawer $uniq) {
1434	$self->clear_unique_items;	2032	$self->clear_unique_items;
1435	$self->_load_objects ($uniq, 0);	2033	$self->_load_objects ($f);
		2034	$f->resolve_delayed_derefs;
		2035	}
1436	}	2036	}
1437	}	2037	}
1438		2038
1439	Coro::cede;	2039	$f->resolve_delayed_derefs;
1440		2040
		2041	cf::cede_to_tick;
1441	# now do the right thing for maps	2042	# now do the right thing for maps
1442	$self->link_multipart_objects;	2043	$self->link_multipart_objects;
1443
1444	unless ($self->{deny_activate}) {
1445	$self->decay_objects;
1446	$self->fix_auto_apply;
1447	$self->update_buttons;
1448	Coro::cede;
1449	$self->set_darkness_map;
1450	$self->difficulty ($self->estimate_difficulty)	2044	$self->difficulty ($self->estimate_difficulty)
1451	unless $self->difficulty;	2045	unless $self->difficulty;
1452	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;
1453	$self->activate;	2053	$self->activate;
		2054	}
		2055
		2056	$self->{last_save} = $cf::RUNTIME;
		2057	$self->last_access ($cf::RUNTIME);
		2058
		2059	$self->in_memory (cf::MAP_ACTIVE);
1454	}	2060	}
1455		2061
1456	$self->post_load;	2062	$self->post_load;
1457
1458	$self->in_memory (cf::MAP_IN_MEMORY);
1459	}	2063	}
1460		2064
1461	sub customise_for {	2065	sub customise_for {
1462	my ($self, $ob) = @_;	2066	my ($self, $ob) = @_;
1463		2067
1464	return find "~" . $ob->name . "/" . $self->{path}	2068	return find "~" . $ob->name . "/" . $self->{path}
1465	if $self->per_player;	2069	if $self->per_player;
1466		2070
		2071	# return find "?party/" . $ob->name . "/" . $self->{path}
		2072	# if $self->per_party;
		2073
1467	$self	2074	$self
1468	}	2075	}
1469		2076
1470	# 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
1471	sub load_diag {	2078	sub load_neighbours {
1472	my ($map) = @_;	2079	my ($map) = @_;
1473		2080
1474	my @diag; # diagonal neighbours	2081	my @neigh; # diagonal neighbours
1475		2082
1476	for (0 .. 3) {	2083	for (0 .. 3) {
1477	my $neigh = $map->tile_path ($_)	2084	my $neigh = $map->tile_path ($_)
1478	or next;	2085	or next;
1479	$neigh = find $neigh, $map	2086	$neigh = find $neigh, $map
1480	or next;	2087	or next;
1481	$neigh->load;	2088	$neigh->load;
1482		2089
		2090	push @neigh,
1483	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2091	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1484	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2092	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1485	}	2093	}
1486		2094
1487	for (@diag) {	2095	for (grep defined $_->[0], @neigh) {
		2096	my ($path, $origin) = @$_;
1488	my $neigh = find @$_	2097	my $neigh = find $path, $origin
1489	or next;	2098	or next;
1490	$neigh->load;	2099	$neigh->load;
1491	}	2100	}
1492	}	2101	}
1493		2102
…		…
1498	}	2107	}
1499		2108
1500	sub do_load_sync {	2109	sub do_load_sync {
1501	my ($map) = @_;	2110	my ($map) = @_;
1502		2111
		2112	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2113	if $Coro::current == $Coro::main;
		2114
1503	cf::sync_job { $map->load };	2115	cf::sync_job { $map->load };
1504	}	2116	}
1505		2117
1506	our %MAP_PREFETCH;	2118	our %MAP_PREFETCH;
1507	our $MAP_PREFETCHER = undef;	2119	our $MAP_PREFETCHER = undef;
1508		2120
1509	sub find_async {	2121	sub find_async {
1510	my ($path, $origin) = @_;	2122	my ($path, $origin, $load) = @_;
1511		2123
1512	$path = normalise $path, $origin && $origin->{path};	2124	$path = normalise $path, $origin && $origin->{path};
1513		2125
1514	if (my $map = $cf::MAP{$path}) {	2126	if (my $map = $cf::MAP{$path}) {
1515	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2127	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1516	}	2128	}
1517		2129
1518	undef $MAP_PREFETCH{$path};	2130	$MAP_PREFETCH{$path} |= $load;
		2131
1519	$MAP_PREFETCHER ||= cf::async {	2132	$MAP_PREFETCHER ||= cf::async {
		2133	$Coro::current->{desc} = "map prefetcher";
		2134
1520	while (%MAP_PREFETCH) {	2135	while (%MAP_PREFETCH) {
1521	for my $path (keys %MAP_PREFETCH) {	2136	while (my ($k, $v) = each %MAP_PREFETCH) {
1522	my $map = find $path	2137	if (my $map = find $k) {
1523	or next;
1524	$map->load;	2138	$map->load if $v;
		2139	}
1525		2140
1526	delete $MAP_PREFETCH{$path};	2141	delete $MAP_PREFETCH{$k};
1527	}	2142	}
1528	}	2143	}
1529	undef $MAP_PREFETCHER;	2144	undef $MAP_PREFETCHER;
1530	};	2145	};
1531	$MAP_PREFETCHER->prio (6);	2146	$MAP_PREFETCHER->prio (6);
…		…
1534	}	2149	}
1535		2150
1536	sub save {	2151	sub save {
1537	my ($self) = @_;	2152	my ($self) = @_;
1538		2153
1539	my $lock = cf::lock_acquire "map_data:" . $self->path;	2154	my $lock = cf::lock_acquire "map_data:$self->{path}";
1540		2155
1541	$self->{last_save} = $cf::RUNTIME;	2156	$self->{last_save} = $cf::RUNTIME;
1542		2157
1543	return unless $self->dirty;	2158	return unless $self->dirty;
1544		2159
…		…
1550	return if $self->{deny_save};	2165	return if $self->{deny_save};
1551		2166
1552	local $self->{last_access} = $self->last_access;#d#	2167	local $self->{last_access} = $self->last_access;#d#
1553		2168
1554	cf::async {	2169	cf::async {
		2170	$Coro::current->{desc} = "map player save";
1555	$_->contr->save for $self->players;	2171	$_->contr->save for $self->players;
1556	};	2172	};
		2173
		2174	cf::get_slot 0.02;
1557		2175
1558	if ($uniq) {	2176	if ($uniq) {
1559	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2177	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1560	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2178	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1561	} else {	2179	} else {
…		…
1567	my ($self) = @_;	2185	my ($self) = @_;
1568		2186
1569	# save first because save cedes	2187	# save first because save cedes
1570	$self->save;	2188	$self->save;
1571		2189
1572	my $lock = cf::lock_acquire "map_data:" . $self->path;	2190	my $lock = cf::lock_acquire "map_data:$self->{path}";
1573		2191
1574	return if $self->players;	2192	return if $self->players;
1575	return if $self->in_memory != cf::MAP_IN_MEMORY;	2193	return if $self->in_memory != cf::MAP_ACTIVE;
1576	return if $self->{deny_save};	2194	return if $self->{deny_save};
1577		2195
		2196	$self->in_memory (cf::MAP_SWAPPED);
		2197
		2198	$self->deactivate;
		2199	$_->clear_links_to ($self) for values %cf::MAP;
1578	$self->clear;	2200	$self->clear;
1579	$self->in_memory (cf::MAP_SWAPPED);
1580	}	2201	}
1581		2202
1582	sub reset_at {	2203	sub reset_at {
1583	my ($self) = @_;	2204	my ($self) = @_;
1584		2205
1585	# TODO: safety, remove and allow resettable per-player maps	2206	# TODO: safety, remove and allow resettable per-player maps
1586	return 1e99 if $self->isa ("ext::map_per_player");#d#
1587	return 1e99 if $self->{deny_reset};	2207	return 1e99 if $self->{deny_reset};
1588		2208
1589	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2209	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1590	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;
1591		2211
…		…
1602	my ($self) = @_;	2222	my ($self) = @_;
1603		2223
1604	my $lock = cf::lock_acquire "map_data:$self->{path}";	2224	my $lock = cf::lock_acquire "map_data:$self->{path}";
1605		2225
1606	return if $self->players;	2226	return if $self->players;
1607	return if $self->isa ("ext::map_per_player");#d#
1608		2227
1609	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	}
1610		2239
1611	delete $cf::MAP{$self->path};	2240	delete $cf::MAP{$self->path};
1612		2241
1613	$self->in_memory (cf::MAP_SWAPPED);	2242	$self->deactivate;
		2243	$_->clear_links_to ($self) for values %cf::MAP;
1614	$self->clear;	2244	$self->clear;
1615
1616	$_->clear_links_to ($self) for values %cf::MAP;
1617		2245
1618	$self->unlink_save;	2246	$self->unlink_save;
1619	$self->destroy;	2247	$self->destroy;
1620	}	2248	}
1621		2249
1622	my $nuke_counter = "aaaa";	2250	my $nuke_counter = "aaaa";
1623		2251
1624	sub nuke {	2252	sub nuke {
1625	my ($self) = @_;	2253	my ($self) = @_;
1626		2254
		2255	{
		2256	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2257
1627	delete $cf::MAP{$self->path};	2258	delete $cf::MAP{$self->path};
1628		2259
1629	$self->unlink_save;	2260	$self->unlink_save;
1630		2261
1631	bless $self, "cf::map";	2262	bless $self, "cf::map";
1632	delete $self->{deny_reset};	2263	delete $self->{deny_reset};
1633	$self->{deny_save} = 1;	2264	$self->{deny_save} = 1;
1634	$self->reset_timeout (1);	2265	$self->reset_timeout (1);
1635	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2266	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1636		2267
1637	$cf::MAP{$self->path} = $self;	2268	$cf::MAP{$self->path} = $self;
		2269	}
1638		2270
1639	$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	]
1640	}	2308	}
1641		2309
1642	=item cf::map::unique_maps	2310	=item cf::map::unique_maps
1643		2311
1644	Returns an arrayref of paths of all shared maps that have	2312	Returns an arrayref of paths of all shared maps that have
1645	instantiated unique items. May block.	2313	instantiated unique items. May block.
1646		2314
1647	=cut	2315	=cut
1648		2316
1649	sub unique_maps() {	2317	sub unique_maps() {
1650	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2318	[
1651	or return;	2319	map {
1652
1653	my @paths;
1654
1655	for (@$files) {
1656	utf8::decode $_;	2320	utf8::decode $_;
1657	next if /\.pst$/;	2321	s/\.map$//; # TODO future compatibility hack
1658	next unless /^$PATH_SEP/o;	2322	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1659		2323	? ()
1660	push @paths, cf::map::normalise $_;	2324	: normalise $_
		2325	} @{ aio_readdir $UNIQUEDIR or [] }
1661	}	2326	]
1662
1663	\@paths
1664	}	2327	}
1665
1666	package cf;
1667		2328
1668	=back	2329	=back
1669		2330
1670	=head3 cf::object	2331	=head3 cf::object
1671		2332
…		…
1675		2336
1676	=over 4	2337	=over 4
1677		2338
1678	=item $ob->inv_recursive	2339	=item $ob->inv_recursive
1679		2340
1680	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.
1681		2343
1682	=cut	2344	=cut
1683		2345
1684	sub inv_recursive_;	2346	sub inv_recursive_;
1685	sub inv_recursive_ {	2347	sub inv_recursive_ {
…		…
1688		2350
1689	sub inv_recursive {	2351	sub inv_recursive {
1690	inv_recursive_ inv $_[0]	2352	inv_recursive_ inv $_[0]
1691	}	2353	}
1692		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
1693	package cf;	2383	package cf;
1694		2384
1695	=back	2385	=back
1696		2386
1697	=head3 cf::object::player	2387	=head3 cf::object::player
…		…
1703	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>
1704	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
1705	dialogue with the given NPC character.	2395	dialogue with the given NPC character.
1706		2396
1707	=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	};
1708		2412
1709	# rough implementation of a future "reply" method that works	2413	# rough implementation of a future "reply" method that works
1710	# with dialog boxes.	2414	# with dialog boxes.
1711	#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
1712	sub cf::object::player::reply($$$;$) {	2416	sub cf::object::player::reply($$$;$) {
…		…
1714		2418
1715	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2419	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1716		2420
1717	if ($self->{record_replies}) {	2421	if ($self->{record_replies}) {
1718	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2422	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2423
1719	} 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 {
1720	$msg = $npc->name . " says: $msg" if $npc;	2432	$msg = $npc->name . " says: $msg" if $npc;
1721	$self->message ($msg, $flags);	2433	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2434	}
1722	}	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 (@_);
1723	}	2446	}
1724		2447
1725	=item $player_object->may ("access")	2448	=item $player_object->may ("access")
1726		2449
1727	Returns wether the given player is authorized to access resource "access"	2450	Returns wether the given player is authorized to access resource "access"
…		…
1740		2463
1741	=item $player_object->enter_link	2464	=item $player_object->enter_link
1742		2465
1743	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}>).
1744		2467
1745	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.
1746	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.
1747		2472
1748	Will never block.	2473	Will never block.
1749		2474
1750	=item $player_object->leave_link ($map, $x, $y)	2475	=item $player_object->leave_link ($map, $x, $y)
1751		2476
…		…
1774	$self->deactivate_recursive;	2499	$self->deactivate_recursive;
1775		2500
1776	return if UNIVERSAL::isa $self->map, "ext::map_link";	2501	return if UNIVERSAL::isa $self->map, "ext::map_link";
1777		2502
1778	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2503	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1779	if $self->map;	2504	if $self->map && $self->map->{path} ne "{link}";
1780		2505
1781	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2506	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1782	}	2507	}
1783		2508
1784	sub cf::object::player::leave_link {	2509	sub cf::object::player::leave_link {
1785	my ($self, $map, $x, $y) = @_;	2510	my ($self, $map, $x, $y) = @_;
		2511
		2512	return unless $self->contr->active;
1786		2513
1787	my $link_pos = delete $self->{_link_pos};	2514	my $link_pos = delete $self->{_link_pos};
1788		2515
1789	unless ($map) {	2516	unless ($map) {
1790	# restore original map position	2517	# restore original map position
…		…
1804	# use -1 or undef as default coordinates, not 0, 0	2531	# use -1 or undef as default coordinates, not 0, 0
1805	($x, $y) = ($map->enter_x, $map->enter_y)	2532	($x, $y) = ($map->enter_x, $map->enter_y)
1806	if $x <=0 && $y <= 0;	2533	if $x <=0 && $y <= 0;
1807		2534
1808	$map->load;	2535	$map->load;
1809	$map->load_diag;	2536	$map->load_neighbours;
1810		2537
1811	return unless $self->contr->active;	2538	return unless $self->contr->active;
		2539
		2540	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
		2541	$self->enter_map ($map, $x, $y);
		2542
		2543	# only activate afterwards, to support waiting in hooks
1812	$self->activate_recursive;	2544	$self->activate_recursive;
1813	$self->enter_map ($map, $x, $y);
1814	}	2545	}
1815		2546
1816	cf::player->attach (	2547	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1817	on_logout => sub {
1818	my ($pl) = @_;
1819		2548
1820	# abort map switching before logout	2549	Moves the player to the given map-path and coordinates by first freezing
1821	if ($pl->ob->{_link_pos}) {	2550	her, loading and preparing them map, calling the provided $check callback
1822	cf::sync_job {	2551	that has to return the map if sucecssful, and then unfreezes the player on
1823	$pl->ob->leave_link	2552	the new (success) or old (failed) map position. In either case, $done will
1824	};	2553	be called at the end of this process.
1825	}
1826	},
1827	on_login => sub {
1828	my ($pl) = @_;
1829		2554
1830	# try to abort aborted map switching on player login :)	2555	Note that $check will be called with a potentially non-loaded map, so if
1831	# should happen only on crashes	2556	it needs a loaded map it has to call C<< ->load >>.
1832	if ($pl->ob->{_link_pos}) {
1833	$pl->ob->enter_link;
1834	(async {
1835	# we need this sleep as the login has a concurrent enter_exit running
1836	# and this sleep increases chances of the player not ending up in scorn
1837	$pl->ob->reply (undef,
1838	"There was an internal problem at your last logout, "
1839	. "the server will try to bring you to your intended destination in a second.",
1840	cf::NDI_RED);
1841	Coro::Timer::sleep 1;
1842	$pl->ob->leave_link;
1843	})->prio (2);
1844	}
1845	},
1846	);
1847		2557
1848	=item $player_object->goto ($path, $x, $y)
1849
1850	=cut	2558	=cut
		2559
		2560	our $GOTOGEN;
1851		2561
1852	sub cf::object::player::goto {	2562	sub cf::object::player::goto {
1853	my ($self, $path, $x, $y) = @_;	2563	my ($self, $path, $x, $y, $check, $done) = @_;
		2564
		2565	# do generation counting so two concurrent goto's will be executed in-order
		2566	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1854		2567
1855	$self->enter_link;	2568	$self->enter_link;
1856		2569
1857	(async {	2570	(async {
		2571	$Coro::current->{desc} = "player::goto $path $x $y";
		2572
		2573	# *tag paths override both path and x|y
		2574	if ($path =~ /^\*(.*)$/) {
		2575	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2576	my $ob = $obs[rand @obs];
		2577
		2578	# see if we actually can go there
		2579	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2580	$ob = $obs[rand @obs];
		2581	} else {
		2582	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2583	}
		2584	# else put us there anyways for now #d#
		2585
		2586	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2587	} else {
		2588	($path, $x, $y) = (undef, undef, undef);
		2589	}
		2590	}
		2591
1858	my $map = eval {	2592	my $map = eval {
1859	my $map = cf::map::find $path;	2593	my $map = defined $path ? cf::map::find $path : undef;
		2594
		2595	if ($map) {
1860	$map = $map->customise_for ($self) if $map;	2596	$map = $map->customise_for ($self);
		2597	$map = $check->($map) if $check && $map;
		2598	} else {
		2599	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2600	}
		2601
1861	$map	2602	$map
		2603	};
		2604
		2605	if ($@) {
		2606	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2607	LOG llevError | logBacktrace, Carp::longmess $@;
1862	} or	2608	}
1863	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1864		2609
		2610	if ($gen == $self->{_goto_generation}) {
		2611	delete $self->{_goto_generation};
1865	$self->leave_link ($map, $x, $y);	2612	$self->leave_link ($map, $x, $y);
		2613	}
		2614
		2615	$done->() if $done;
1866	})->prio (1);	2616	})->prio (1);
1867	}	2617	}
1868		2618
1869	=item $player_object->enter_exit ($exit_object)	2619	=item $player_object->enter_exit ($exit_object)
1870		2620
…		…
1890	}	2640	}
1891		2641
1892	sub prepare_random_map {	2642	sub prepare_random_map {
1893	my ($exit) = @_;	2643	my ($exit) = @_;
1894		2644
1895	my $guard = cf::lock_acquire "exit_prepare:$exit";
1896
1897	# all this does is basically replace the /! path by	2645	# all this does is basically replace the /! path by
1898	# a new random map path (?random/...) with a seed	2646	# a new random map path (?random/...) with a seed
1899	# that depends on the exit object	2647	# that depends on the exit object
1900		2648
1901	my $rmp = parse_random_map_params $exit->msg;	2649	my $rmp = parse_random_map_params $exit->msg;
…		…
1903	if ($exit->map) {	2651	if ($exit->map) {
1904	$rmp->{region} = $exit->region->name;	2652	$rmp->{region} = $exit->region->name;
1905	$rmp->{origin_map} = $exit->map->path;	2653	$rmp->{origin_map} = $exit->map->path;
1906	$rmp->{origin_x} = $exit->x;	2654	$rmp->{origin_x} = $exit->x;
1907	$rmp->{origin_y} = $exit->y;	2655	$rmp->{origin_y} = $exit->y;
		2656
		2657	$exit->map->touch;
1908	}	2658	}
1909		2659
1910	$rmp->{random_seed} ||= $exit->random_seed;	2660	$rmp->{random_seed} ||= $exit->random_seed;
1911		2661
1912	my $data = cf::to_json $rmp;	2662	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1913	my $md5 = Digest::MD5::md5_hex $data;	2663	my $md5 = Digest::MD5::md5_hex $data;
1914	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2664	my $meta = "$RANDOMDIR/$md5.meta";
1915		2665
1916	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2666	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1917	aio_write $fh, 0, (length $data), $data, 0;	2667	aio_write $fh, 0, (length $data), $data, 0;
1918	undef $fh;	2668	undef $fh;
1919	aio_rename "$meta~", $meta;	2669	aio_rename "$meta~", $meta;
1920		2670
		2671	my $slaying = "?random/$md5";
		2672
		2673	if ($exit->valid) {
1921	$exit->slaying ("?random/$md5");	2674	$exit->slaying ("?random/$md5");
1922	$exit->msg (undef);	2675	$exit->msg (undef);
		2676	}
1923	}	2677	}
1924	}	2678	}
1925		2679
1926	sub cf::object::player::enter_exit {	2680	sub cf::object::player::enter_exit {
1927	my ($self, $exit) = @_;	2681	my ($self, $exit) = @_;
1928		2682
1929	return unless $self->type == cf::PLAYER;	2683	return unless $self->type == cf::PLAYER;
1930		2684
1931	if ($exit->slaying eq "/!") {
1932	#TODO: this should de-fi-ni-te-ly not be a sync-job
1933	cf::sync_job { prepare_random_map $exit };
1934	}
1935
1936	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1937	my $hp = $exit->stats->hp;
1938	my $sp = $exit->stats->sp;
1939
1940	$self->enter_link;	2685	$self->enter_link;
1941		2686
1942	(async {	2687	(async {
1943	$self->deactivate_recursive; # just to be sure	2688	$Coro::current->{desc} = "enter_exit";
		2689
1944	unless (eval {	2690	unless (eval {
		2691	$self->deactivate_recursive; # just to be sure
		2692
		2693	# random map handling
		2694	{
		2695	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2696
		2697	prepare_random_map $exit
		2698	if $exit->slaying eq "/!";
		2699	}
		2700
		2701	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2702	my $x = $exit->stats->hp;
		2703	my $y = $exit->stats->sp;
		2704
1945	$self->goto ($slaying, $hp, $sp);	2705	$self->goto ($map, $x, $y);
1946		2706
		2707	# if exit is damned, update players death & WoR home-position
		2708	$self->contr->savebed ($map, $x, $y)
		2709	if $exit->flag (cf::FLAG_DAMNED);
		2710
1947	1;	2711	1
1948	}) {	2712	}) {
1949	$self->message ("Something went wrong deep within the crossfire server. "	2713	$self->message ("Something went wrong deep within the deliantra server. "
1950	. "I'll try to bring you back to the map you were before. "	2714	. "I'll try to bring you back to the map you were before. "
1951	. "Please report this to the dungeon master!",	2715	. "Please report this to the dungeon master!",
1952	cf::NDI_UNIQUE | cf::NDI_RED);	2716	cf::NDI_UNIQUE | cf::NDI_RED);
1953		2717
1954	warn "ERROR in enter_exit: $@";	2718	warn "ERROR in enter_exit: $@";
1955	$self->leave_link;	2719	$self->leave_link;
1956	}	2720	}
1957	})->prio (1);	2721	})->prio (1);
…		…
1970		2734
1971	sub cf::client::send_drawinfo {	2735	sub cf::client::send_drawinfo {
1972	my ($self, $text, $flags) = @_;	2736	my ($self, $text, $flags) = @_;
1973		2737
1974	utf8::encode $text;	2738	utf8::encode $text;
1975	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2739	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1976	}	2740	}
1977		2741
		2742	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2743
		2744	Send a drawinfo or msg packet to the client, formatting the msg for the
		2745	client if neccessary. C<$type> should be a string identifying the type of
		2746	the message, with C<log> being the default. If C<$color> is negative, suppress
		2747	the message unless the client supports the msg packet.
		2748
		2749	=cut
		2750
		2751	# non-persistent channels (usually the info channel)
		2752	our %CHANNEL = (
		2753	"c/identify" => {
		2754	id => "infobox",
		2755	title => "Identify",
		2756	reply => undef,
		2757	tooltip => "Items recently identified",
		2758	},
		2759	"c/examine" => {
		2760	id => "infobox",
		2761	title => "Examine",
		2762	reply => undef,
		2763	tooltip => "Signs and other items you examined",
		2764	},
		2765	"c/book" => {
		2766	id => "infobox",
		2767	title => "Book",
		2768	reply => undef,
		2769	tooltip => "The contents of a note or book",
		2770	},
		2771	"c/lookat" => {
		2772	id => "infobox",
		2773	title => "Look",
		2774	reply => undef,
		2775	tooltip => "What you saw there",
		2776	},
		2777	"c/who" => {
		2778	id => "infobox",
		2779	title => "Players",
		2780	reply => undef,
		2781	tooltip => "Shows players who are currently online",
		2782	},
		2783	"c/body" => {
		2784	id => "infobox",
		2785	title => "Body Parts",
		2786	reply => undef,
		2787	tooltip => "Shows which body parts you posess and are available",
		2788	},
		2789	"c/statistics" => {
		2790	id => "infobox",
		2791	title => "Statistics",
		2792	reply => undef,
		2793	tooltip => "Shows your primary statistics",
		2794	},
		2795	"c/skills" => {
		2796	id => "infobox",
		2797	title => "Skills",
		2798	reply => undef,
		2799	tooltip => "Shows your experience per skill and item power",
		2800	},
		2801	"c/shopitems" => {
		2802	id => "infobox",
		2803	title => "Shop Items",
		2804	reply => undef,
		2805	tooltip => "Shows the items currently for sale in this shop",
		2806	},
		2807	"c/resistances" => {
		2808	id => "infobox",
		2809	title => "Resistances",
		2810	reply => undef,
		2811	tooltip => "Shows your resistances",
		2812	},
		2813	"c/pets" => {
		2814	id => "infobox",
		2815	title => "Pets",
		2816	reply => undef,
		2817	tooltip => "Shows information abotu your pets/a specific pet",
		2818	},
		2819	"c/perceiveself" => {
		2820	id => "infobox",
		2821	title => "Perceive Self",
		2822	reply => undef,
		2823	tooltip => "You gained detailed knowledge about yourself",
		2824	},
		2825	"c/uptime" => {
		2826	id => "infobox",
		2827	title => "Uptime",
		2828	reply => undef,
		2829	tooltip => "How long the server has been running since last restart",
		2830	},
		2831	"c/mapinfo" => {
		2832	id => "infobox",
		2833	title => "Map Info",
		2834	reply => undef,
		2835	tooltip => "Information related to the maps",
		2836	},
		2837	"c/party" => {
		2838	id => "party",
		2839	title => "Party",
		2840	reply => "gsay ",
		2841	tooltip => "Messages and chat related to your party",
		2842	},
		2843	"c/death" => {
		2844	id => "death",
		2845	title => "Death",
		2846	reply => undef,
		2847	tooltip => "Reason for and more info about your most recent death",
		2848	},
		2849	"c/say" => $SAY_CHANNEL,
		2850	"c/chat" => $CHAT_CHANNEL,
		2851	);
		2852
		2853	sub cf::client::send_msg {
		2854	my ($self, $channel, $msg, $color, @extra) = @_;
		2855
		2856	$msg = $self->pl->expand_cfpod ($msg)
		2857	unless $color & cf::NDI_VERBATIM;
		2858
		2859	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2860
		2861	# check predefined channels, for the benefit of C
		2862	if ($CHANNEL{$channel}) {
		2863	$channel = $CHANNEL{$channel};
		2864
		2865	$self->ext_msg (channel_info => $channel);
		2866	$channel = $channel->{id};
		2867
		2868	} elsif (ref $channel) {
		2869	# send meta info to client, if not yet sent
		2870	unless (exists $self->{channel}{$channel->{id}}) {
		2871	$self->{channel}{$channel->{id}} = $channel;
		2872	$self->ext_msg (channel_info => $channel);
		2873	}
		2874
		2875	$channel = $channel->{id};
		2876	}
		2877
		2878	return unless @extra || length $msg;
		2879
		2880	# default colour, mask it out
		2881	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2882	if $color & cf::NDI_DEF;
		2883
		2884	my $pkt = "msg "
		2885	. $self->{json_coder}->encode (
		2886	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2887	);
		2888
		2889	# try lzf for large packets
		2890	$pkt = "lzf " . Compress::LZF::compress $pkt
		2891	if 1024 <= length $pkt and $self->{can_lzf};
		2892
		2893	# split very large packets
		2894	if (8192 < length $pkt and $self->{can_lzf}) {
		2895	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2896	$pkt = "frag";
		2897	}
		2898
		2899	$self->send_packet ($pkt);
		2900	}
		2901
		2902	=item $client->ext_msg ($type, @msg)
		2903
		2904	Sends an ext event to the client.
		2905
		2906	=cut
		2907
		2908	sub cf::client::ext_msg($$@) {
		2909	my ($self, $type, @msg) = @_;
		2910
		2911	if ($self->extcmd == 2) {
		2912	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2913	} elsif ($self->extcmd == 1) { # TODO: remove
		2914	push @msg, msgtype => "event_$type";
		2915	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2916	}
		2917	}
		2918
		2919	=item $client->ext_reply ($msgid, @msg)
		2920
		2921	Sends an ext reply to the client.
		2922
		2923	=cut
		2924
		2925	sub cf::client::ext_reply($$@) {
		2926	my ($self, $id, @msg) = @_;
		2927
		2928	if ($self->extcmd == 2) {
		2929	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2930	} elsif ($self->extcmd == 1) {
		2931	#TODO: version 1, remove
		2932	unshift @msg, msgtype => "reply", msgid => $id;
		2933	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2934	}
		2935	}
1978		2936
1979	=item $success = $client->query ($flags, "text", \&cb)	2937	=item $success = $client->query ($flags, "text", \&cb)
1980		2938
1981	Queues a query to the client, calling the given callback with	2939	Queues a query to the client, calling the given callback with
1982	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2940	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1983	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2941	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1984		2942
1985	Queries can fail, so check the return code. Or don't, as queries will become	2943	Queries can fail, so check the return code. Or don't, as queries will
1986	reliable at some point in the future.	2944	become reliable at some point in the future.
1987		2945
1988	=cut	2946	=cut
1989		2947
1990	sub cf::client::query {	2948	sub cf::client::query {
1991	my ($self, $flags, $text, $cb) = @_;	2949	my ($self, $flags, $text, $cb) = @_;
…		…
1999	utf8::encode $text;	2957	utf8::encode $text;
2000	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2958	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2001		2959
2002	$self->send_packet ($self->{query_queue}[0][0])	2960	$self->send_packet ($self->{query_queue}[0][0])
2003	if @{ $self->{query_queue} } == 1;	2961	if @{ $self->{query_queue} } == 1;
		2962
		2963	1
2004	}	2964	}
2005		2965
2006	cf::client->attach (	2966	cf::client->attach (
		2967	on_connect => sub {
		2968	my ($ns) = @_;
		2969
		2970	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2971	},
2007	on_reply => sub {	2972	on_reply => sub {
2008	my ($ns, $msg) = @_;	2973	my ($ns, $msg) = @_;
2009		2974
2010	# this weird shuffling is so that direct followup queries	2975	# this weird shuffling is so that direct followup queries
2011	# get handled first	2976	# get handled first
…		…
2023	} else {	2988	} else {
2024	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2989	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2025	}	2990	}
2026	}	2991	}
2027	},	2992	},
		2993	on_exticmd => sub {
		2994	my ($ns, $buf) = @_;
		2995
		2996	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2997
		2998	if (ref $msg) {
		2999	my ($type, $reply, @payload) =
		3000	"ARRAY" eq ref $msg
		3001	? @$msg
		3002	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3003
		3004	my @reply;
		3005
		3006	if (my $cb = $EXTICMD{$type}) {
		3007	@reply = $cb->($ns, @payload);
		3008	}
		3009
		3010	$ns->ext_reply ($reply, @reply)
		3011	if $reply;
		3012
		3013	} else {
		3014	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3015	}
		3016
		3017	cf::override;
		3018	},
2028	);	3019	);
2029		3020
2030	=item $client->async (\&cb)	3021	=item $client->async (\&cb)
2031		3022
2032	Create a new coroutine, running the specified callback. The coroutine will	3023	Create a new coroutine, running the specified callback. The coroutine will
…		…
2073	our $safe = new Safe "safe";	3064	our $safe = new Safe "safe";
2074	our $safe_hole = new Safe::Hole;	3065	our $safe_hole = new Safe::Hole;
2075		3066
2076	$SIG{FPE} = 'IGNORE';	3067	$SIG{FPE} = 'IGNORE';
2077		3068
2078	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3069	$safe->permit_only (Opcode::opset qw(
		3070	:base_core :base_mem :base_orig :base_math
		3071	grepstart grepwhile mapstart mapwhile
		3072	sort time
		3073	));
2079		3074
2080	# here we export the classes and methods available to script code	3075	# here we export the classes and methods available to script code
2081		3076
2082	=pod	3077	=pod
2083		3078
2084	The following fucntions and emthods are available within a safe environment:	3079	The following functions and methods are available within a safe environment:
2085		3080
2086	cf::object contr pay_amount pay_player map	3081	cf::object
		3082	contr pay_amount pay_player map x y force_find force_add destroy
		3083	insert remove name archname title slaying race decrease split
		3084	value
		3085
2087	cf::object::player player	3086	cf::object::player
2088	cf::player peaceful	3087	player
2089	cf::map trigger	3088
		3089	cf::player
		3090	peaceful
		3091
		3092	cf::map
		3093	trigger
2090		3094
2091	=cut	3095	=cut
2092		3096
2093	for (	3097	for (
2094	["cf::object" => qw(contr pay_amount pay_player map)],	3098	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3099	insert remove inv nrof name archname title slaying race
		3100	decrease split destroy change_exp value msg lore send_msg)],
2095	["cf::object::player" => qw(player)],	3101	["cf::object::player" => qw(player)],
2096	["cf::player" => qw(peaceful)],	3102	["cf::player" => qw(peaceful send_msg)],
2097	["cf::map" => qw(trigger)],	3103	["cf::map" => qw(trigger)],
2098	) {	3104	) {
2099	no strict 'refs';	3105	no strict 'refs';
2100	my ($pkg, @funs) = @$_;	3106	my ($pkg, @funs) = @$_;
2101	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3107	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2118	my ($code, %vars) = @_;	3124	my ($code, %vars) = @_;
2119		3125
2120	my $qcode = $code;	3126	my $qcode = $code;
2121	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3127	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2122	$qcode =~ s/\n/\\n/g;	3128	$qcode =~ s/\n/\\n/g;
		3129
		3130	%vars = (_dummy => 0) unless %vars;
2123		3131
2124	local $_;	3132	local $_;
2125	local @safe::cf::_safe_eval_args = values %vars;	3133	local @safe::cf::_safe_eval_args = values %vars;
2126		3134
2127	my $eval =	3135	my $eval =
…		…
2170	=back	3178	=back
2171		3179
2172	=cut	3180	=cut
2173		3181
2174	#############################################################################	3182	#############################################################################
2175
2176	=head2 EXTENSION DATABASE SUPPORT
2177
2178	Crossfire maintains a very simple database for extension use. It can
2179	currently store anything that can be serialised using Storable, which
2180	excludes objects.
2181
2182	The parameter C<$family> should best start with the name of the extension
2183	using it, it should be unique.
2184
2185	=over 4
2186
2187	=item $hashref = cf::db_get $family
2188
2189	Return a hashref for use by the extension C<$family>, which can be
2190	modified. After modifications, you have to call C<cf::db_dirty> or
2191	C<cf::db_sync>.
2192
2193	=item $value = cf::db_get $family => $key
2194
2195	Returns a single value from the database
2196
2197	=item cf::db_put $family => $hashref
2198
2199	Stores the given family hashref into the database. Updates are delayed, if
2200	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2201
2202	=item cf::db_put $family => $key => $value
2203
2204	Stores the given C<$value> in the family hash. Updates are delayed, if you
2205	want the data to be synced to disk immediately, use C<cf::db_sync>.
2206
2207	=item cf::db_dirty
2208
2209	Marks the database as dirty, to be updated at a later time.
2210
2211	=item cf::db_sync
2212
2213	Immediately write the database to disk I<if it is dirty>.
2214
2215	=cut
2216
2217	our $DB;
2218
2219	{
2220	my $path = cf::localdir . "/database.pst";
2221
2222	sub db_load() {
2223	$DB = stat $path ? Storable::retrieve $path : { };
2224	}
2225
2226	my $pid;
2227
2228	sub db_save() {
2229	waitpid $pid, 0 if $pid;
2230	if (0 == ($pid = fork)) {
2231	$DB->{_meta}{version} = 1;
2232	Storable::nstore $DB, "$path~";
2233	rename "$path~", $path;
2234	cf::_exit 0 if defined $pid;
2235	}
2236	}
2237
2238	my $dirty;
2239
2240	sub db_sync() {
2241	db_save if $dirty;
2242	undef $dirty;
2243	}
2244
2245	my $idle = Event->idle (
2246	reentrant => 0,
2247	min => 10,
2248	max => 20,
2249	repeat => 0,
2250	data => WF_AUTOCANCEL,
2251	cb => \&db_sync,
2252	);
2253
2254	sub db_dirty() {
2255	$dirty = 1;
2256	$idle->start;
2257	}
2258
2259	sub db_get($;$) {
2260	@_ >= 2
2261	? $DB->{$_[0]}{$_[1]}
2262	: ($DB->{$_[0]} ||= { })
2263	}
2264
2265	sub db_put($$;$) {
2266	if (@_ >= 3) {
2267	$DB->{$_[0]}{$_[1]} = $_[2];
2268	} else {
2269	$DB->{$_[0]} = $_[1];
2270	}
2271	db_dirty;
2272	}
2273
2274	cf::global->attach (
2275	prio => 10000,
2276	on_cleanup => sub {
2277	db_sync;
2278	},
2279	);
2280	}
2281
2282	#############################################################################
2283	# the server's init and main functions	3183	# the server's init and main functions
2284		3184
		3185	sub load_facedata($) {
		3186	my ($path) = @_;
		3187
		3188	# HACK to clear player env face cache, we need some signal framework
		3189	# for this (global event?)
		3190	%ext::player_env::MUSIC_FACE_CACHE = ();
		3191
		3192	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3193
		3194	warn "loading facedata from $path\n";
		3195
		3196	my $facedata;
		3197	0 < aio_load $path, $facedata
		3198	or die "$path: $!";
		3199
		3200	$facedata = Coro::Storable::thaw $facedata;
		3201
		3202	$facedata->{version} == 2
		3203	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3204
		3205	# patch in the exptable
		3206	$facedata->{resource}{"res/exp_table"} = {
		3207	type => FT_RSRC,
		3208	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3209	};
		3210	cf::cede_to_tick;
		3211
		3212	{
		3213	my $faces = $facedata->{faceinfo};
		3214
		3215	while (my ($face, $info) = each %$faces) {
		3216	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3217
		3218	cf::face::set_visibility $idx, $info->{visibility};
		3219	cf::face::set_magicmap $idx, $info->{magicmap};
		3220	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3221	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
		3222
		3223	cf::cede_to_tick;
		3224	}
		3225
		3226	while (my ($face, $info) = each %$faces) {
		3227	next unless $info->{smooth};
		3228
		3229	my $idx = cf::face::find $face
		3230	or next;
		3231
		3232	if (my $smooth = cf::face::find $info->{smooth}) {
		3233	cf::face::set_smooth $idx, $smooth;
		3234	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3235	} else {
		3236	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3237	}
		3238
		3239	cf::cede_to_tick;
		3240	}
		3241	}
		3242
		3243	{
		3244	my $anims = $facedata->{animinfo};
		3245
		3246	while (my ($anim, $info) = each %$anims) {
		3247	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3248	cf::cede_to_tick;
		3249	}
		3250
		3251	cf::anim::invalidate_all; # d'oh
		3252	}
		3253
		3254	{
		3255	# TODO: for gcfclient pleasure, we should give resources
		3256	# that gcfclient doesn't grok a >10000 face index.
		3257	my $res = $facedata->{resource};
		3258
		3259	while (my ($name, $info) = each %$res) {
		3260	if (defined $info->{type}) {
		3261	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3262	my $data;
		3263
		3264	if ($info->{type} & 1) {
		3265	# prepend meta info
		3266
		3267	my $meta = $enc->encode ({
		3268	name => $name,
		3269	%{ $info->{meta} || {} },
		3270	});
		3271
		3272	$data = pack "(w/a*)*", $meta, $info->{data};
		3273	} else {
		3274	$data = $info->{data};
		3275	}
		3276
		3277	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3278	cf::face::set_type $idx, $info->{type};
		3279	} else {
		3280	$RESOURCE{$name} = $info;
		3281	}
		3282
		3283	cf::cede_to_tick;
		3284	}
		3285	}
		3286
		3287	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3288
		3289	1
		3290	}
		3291
		3292	cf::global->attach (on_resource_update => sub {
		3293	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3294	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3295
		3296	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3297	my $sound = $soundconf->{compat}[$_]
		3298	or next;
		3299
		3300	my $face = cf::face::find "sound/$sound->[1]";
		3301	cf::sound::set $sound->[0] => $face;
		3302	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3303	}
		3304
		3305	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3306	my $face = cf::face::find "sound/$v";
		3307	cf::sound::set $k => $face;
		3308	}
		3309	}
		3310	});
		3311
		3312	register_exticmd fx_want => sub {
		3313	my ($ns, $want) = @_;
		3314
		3315	while (my ($k, $v) = each %$want) {
		3316	$ns->fx_want ($k, $v);
		3317	}
		3318	};
		3319
2285	sub load_resources {	3320	sub load_resource_file($) {
2286	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3321	my $guard = lock_acquire "load_resource_file";
		3322
		3323	my $status = load_resource_file_ $_[0];
		3324	get_slot 0.1, 100;
		3325	cf::arch::commit_load;
		3326
		3327	$status
		3328	}
		3329
		3330	sub reload_regions {
		3331	# HACK to clear player env face cache, we need some signal framework
		3332	# for this (global event?)
		3333	%ext::player_env::MUSIC_FACE_CACHE = ();
		3334
		3335	load_resource_file "$MAPDIR/regions"
2287	or die "unable to load regions file\n";#d#	3336	or die "unable to load regions file\n";
2288	}
2289		3337
2290	sub cfg_load {	3338	for (cf::region::list) {
		3339	$_->{match} = qr/$_->{match}/
		3340	if exists $_->{match};
		3341	}
		3342	}
		3343
		3344	sub reload_facedata {
		3345	load_facedata "$DATADIR/facedata"
		3346	or die "unable to load facedata\n";
		3347	}
		3348
		3349	sub reload_archetypes {
		3350	load_resource_file "$DATADIR/archetypes"
		3351	or die "unable to load archetypes\n";
		3352	}
		3353
		3354	sub reload_treasures {
		3355	load_resource_file "$DATADIR/treasures"
		3356	or die "unable to load treasurelists\n";
		3357	}
		3358
		3359	sub reload_resources {
		3360	warn "reloading resource files...\n";
		3361
		3362	reload_facedata;
		3363	reload_archetypes;
		3364	reload_regions;
		3365	reload_treasures;
		3366
		3367	warn "finished reloading resource files\n";
		3368	}
		3369
		3370	sub reload_config {
2291	open my $fh, "<:utf8", cf::confdir . "/config"	3371	open my $fh, "<:utf8", "$CONFDIR/config"
2292	or return;	3372	or return;
2293		3373
2294	local $/;	3374	local $/;
2295	*CFG = YAML::Syck::Load <$fh>;	3375	*CFG = YAML::Load <$fh>;
2296		3376
2297	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3377	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2298		3378
2299	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3379	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2300	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3380	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2306	};	3386	};
2307	warn $@ if $@;	3387	warn $@ if $@;
2308	}	3388	}
2309	}	3389	}
2310		3390
2311	sub init {	3391	sub pidfile() {
2312	load_resources;	3392	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3393	or die "$PIDFILE: $!";
		3394	flock $fh, &Fcntl::LOCK_EX
		3395	or die "$PIDFILE: flock: $!";
		3396	$fh
		3397	}
		3398
		3399	# make sure only one server instance is running at any one time
		3400	sub atomic {
		3401	my $fh = pidfile;
		3402
		3403	my $pid = <$fh>;
		3404	kill 9, $pid if $pid > 0;
		3405
		3406	seek $fh, 0, 0;
		3407	print $fh $$;
		3408	}
		3409
		3410	sub main_loop {
		3411	warn "EV::loop starting\n";
		3412	if (1) {
		3413	EV::loop;
		3414	}
		3415	warn "EV::loop returned\n";
		3416	goto &main_loop unless $REALLY_UNLOOP;
2313	}	3417	}
2314		3418
2315	sub main {	3419	sub main {
		3420	cf::init_globals; # initialise logging
		3421
		3422	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3423	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3424	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3425	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3426
		3427	cf::init_experience;
		3428	cf::init_anim;
		3429	cf::init_attackmess;
		3430	cf::init_dynamic;
		3431
		3432	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3433
2316	# we must not ever block the main coroutine	3434	# we must not ever block the main coroutine
2317	local $Coro::idle = sub {	3435	local $Coro::idle = sub {
2318	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3436	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2319	(async {	3437	(async {
2320	Event::one_event;	3438	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3439	EV::loop EV::LOOP_ONESHOT;
2321	})->prio (Coro::PRIO_MAX);	3440	})->prio (Coro::PRIO_MAX);
2322	};	3441	};
2323		3442
2324	cfg_load;	3443	evthread_start IO::AIO::poll_fileno;
2325	db_load;	3444
		3445	cf::sync_job {
		3446	reload_resources;
		3447	reload_config;
		3448	db_init;
		3449
		3450	cf::load_settings;
		3451	cf::load_materials;
		3452	cf::init_uuid;
		3453	cf::init_signals;
		3454	cf::init_commands;
		3455	cf::init_skills;
		3456
		3457	cf::init_beforeplay;
		3458
		3459	atomic;
		3460
2326	load_extensions;	3461	load_extensions;
2327		3462
2328	$TICK_WATCHER->start;	3463	utime time, time, $RUNTIMEFILE;
2329	Event::loop;	3464
		3465	# no (long-running) fork's whatsoever before this point(!)
		3466	use POSIX ();
		3467	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3468
		3469	(pop @POST_INIT)->(0) while @POST_INIT;
		3470	};
		3471
		3472	main_loop;
2330	}	3473	}
2331		3474
2332	#############################################################################	3475	#############################################################################
2333	# initialisation and cleanup	3476	# initialisation and cleanup
2334		3477
2335	# install some emergency cleanup handlers	3478	# install some emergency cleanup handlers
2336	BEGIN {	3479	BEGIN {
		3480	our %SIGWATCHER = ();
2337	for my $signal (qw(INT HUP TERM)) {	3481	for my $signal (qw(INT HUP TERM)) {
2338	Event->signal (	3482	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2339	reentrant => 0,
2340	data => WF_AUTOCANCEL,
2341	signal => $signal,
2342	prio => 0,
2343	cb => sub {
2344	cf::cleanup "SIG$signal";	3483	cf::cleanup "SIG$signal";
2345	},
2346	);	3484	};
		3485	}
		3486	}
		3487
		3488	sub write_runtime_sync {
		3489	# first touch the runtime file to show we are still running:
		3490	# the fsync below can take a very very long time.
		3491
		3492	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3493
		3494	my $guard = cf::lock_acquire "write_runtime";
		3495
		3496	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3497	or return;
		3498
		3499	my $value = $cf::RUNTIME + 90 + 10;
		3500	# 10 is the runtime save interval, for a monotonic clock
		3501	# 60 allows for the watchdog to kill the server.
		3502
		3503	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3504	and return;
		3505
		3506	# always fsync - this file is important
		3507	aio_fsync $fh
		3508	and return;
		3509
		3510	# touch it again to show we are up-to-date
		3511	aio_utime $fh, undef, undef;
		3512
		3513	close $fh
		3514	or return;
		3515
		3516	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3517	and return;
		3518
		3519	warn "runtime file written.\n";
		3520
2347	}	3521	1
		3522	}
		3523
		3524	our $uuid_lock;
		3525	our $uuid_skip;
		3526
		3527	sub write_uuid_sync($) {
		3528	$uuid_skip ||= $_[0];
		3529
		3530	return if $uuid_lock;
		3531	local $uuid_lock = 1;
		3532
		3533	my $uuid = "$LOCALDIR/uuid";
		3534
		3535	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3536	or return;
		3537
		3538	my $value = uuid_seq uuid_cur;
		3539
		3540	unless ($value) {
		3541	warn "cowardly refusing to write zero uuid value!\n";
		3542	return;
		3543	}
		3544
		3545	my $value = uuid_str $value + $uuid_skip;
		3546	$uuid_skip = 0;
		3547
		3548	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3549	and return;
		3550
		3551	# always fsync - this file is important
		3552	aio_fsync $fh
		3553	and return;
		3554
		3555	close $fh
		3556	or return;
		3557
		3558	aio_rename "$uuid~", $uuid
		3559	and return;
		3560
		3561	warn "uuid file written ($value).\n";
		3562
		3563	1
		3564
		3565	}
		3566
		3567	sub write_uuid($$) {
		3568	my ($skip, $sync) = @_;
		3569
		3570	$sync ? write_uuid_sync $skip
		3571	: async { write_uuid_sync $skip };
2348	}	3572	}
2349		3573
2350	sub emergency_save() {	3574	sub emergency_save() {
2351	my $freeze_guard = cf::freeze_mainloop;	3575	my $freeze_guard = cf::freeze_mainloop;
2352		3576
2353	warn "enter emergency perl save\n";	3577	warn "emergency_perl_save: enter\n";
2354		3578
2355	cf::sync_job {	3579	cf::sync_job {
		3580	# this is a trade-off: we want to be very quick here, so
		3581	# save all maps without fsync, and later call a global sync
		3582	# (which in turn might be very very slow)
		3583	local $USE_FSYNC = 0;
		3584
2356	# use a peculiar iteration method to avoid tripping on perl	3585	# use a peculiar iteration method to avoid tripping on perl
2357	# refcount bugs in for. also avoids problems with players	3586	# refcount bugs in for. also avoids problems with players
2358	# and maps saved/destroyed asynchronously.	3587	# and maps saved/destroyed asynchronously.
2359	warn "begin emergency player save\n";	3588	warn "emergency_perl_save: begin player save\n";
2360	for my $login (keys %cf::PLAYER) {	3589	for my $login (keys %cf::PLAYER) {
2361	my $pl = $cf::PLAYER{$login} or next;	3590	my $pl = $cf::PLAYER{$login} or next;
2362	$pl->valid or next;	3591	$pl->valid or next;
		3592	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2363	$pl->save;	3593	$pl->save;
2364	}	3594	}
2365	warn "end emergency player save\n";	3595	warn "emergency_perl_save: end player save\n";
2366		3596
2367	warn "begin emergency map save\n";	3597	warn "emergency_perl_save: begin map save\n";
2368	for my $path (keys %cf::MAP) {	3598	for my $path (keys %cf::MAP) {
2369	my $map = $cf::MAP{$path} or next;	3599	my $map = $cf::MAP{$path} or next;
2370	$map->valid or next;	3600	$map->valid or next;
2371	$map->save;	3601	$map->save;
2372	}	3602	}
2373	warn "end emergency map save\n";	3603	warn "emergency_perl_save: end map save\n";
		3604
		3605	warn "emergency_perl_save: begin database checkpoint\n";
		3606	BDB::db_env_txn_checkpoint $DB_ENV;
		3607	warn "emergency_perl_save: end database checkpoint\n";
		3608
		3609	warn "emergency_perl_save: begin write uuid\n";
		3610	write_uuid_sync 1;
		3611	warn "emergency_perl_save: end write uuid\n";
2374	};	3612	};
2375		3613
		3614	warn "emergency_perl_save: starting sync()\n";
		3615	IO::AIO::aio_sync sub {
		3616	warn "emergency_perl_save: finished sync()\n";
		3617	};
		3618
2376	warn "leave emergency perl save\n";	3619	warn "emergency_perl_save: leave\n";
2377	}	3620	}
2378		3621
		3622	sub post_cleanup {
		3623	my ($make_core) = @_;
		3624
		3625	warn Carp::longmess "post_cleanup backtrace"
		3626	if $make_core;
		3627
		3628	my $fh = pidfile;
		3629	unlink $PIDFILE if <$fh> == $$;
		3630	}
		3631
		3632	# a safer delete_package, copied from Symbol
		3633	sub clear_package($) {
		3634	my $pkg = shift;
		3635
		3636	# expand to full symbol table name if needed
		3637	unless ($pkg =~ /^main::.*::$/) {
		3638	$pkg = "main$pkg" if $pkg =~ /^::/;
		3639	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3640	$pkg .= '::' unless $pkg =~ /::$/;
		3641	}
		3642
		3643	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3644	my $stem_symtab = *{$stem}{HASH};
		3645
		3646	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3647	or return;
		3648
		3649	# clear all symbols
		3650	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3651	for my $name (keys %$leaf_symtab) {
		3652	_gv_clear *{"$pkg$name"};
		3653	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3654	}
		3655	warn "cleared package $pkg\n";#d#
		3656	}
		3657
2379	sub reload() {	3658	sub do_reload_perl() {
2380	# can/must only be called in main	3659	# can/must only be called in main
2381	if ($Coro::current != $Coro::main) {	3660	if ($Coro::current != $Coro::main) {
2382	warn "can only reload from main coroutine";	3661	warn "can only reload from main coroutine";
2383	return;	3662	return;
2384	}	3663	}
2385		3664
		3665	return if $RELOAD++;
		3666
		3667	my $t1 = EV::time;
		3668
		3669	while ($RELOAD) {
2386	warn "reloading...";	3670	warn "reloading...";
2387		3671
2388	warn "cancelling server ticker";	3672	warn "entering sync_job";
2389	$TICK_WATCHER->cancel;
2390		3673
		3674	cf::sync_job {
		3675	cf::write_runtime_sync; # external watchdog should not bark
2391	cf::emergency_save;	3676	cf::emergency_save;
		3677	cf::write_runtime_sync; # external watchdog should not bark
2392		3678
2393	eval {	3679	warn "syncing database to disk";
		3680	BDB::db_env_txn_checkpoint $DB_ENV;
		3681
2394	# if anything goes wrong in here, we should simply crash as we already saved	3682	# if anything goes wrong in here, we should simply crash as we already saved
2395		3683
2396	warn "syncing database to disk";
2397	cf::db_sync;
2398
2399	warn "cancelling all WF_AUTOCANCEL watchers";
2400	for (Event::all_watchers) {
2401	$_->cancel if $_->data & WF_AUTOCANCEL;
2402	}
2403
2404	warn "flushing outstanding aio requests";	3684	warn "flushing outstanding aio requests";
2405	for (;;) {	3685	while (IO::AIO::nreqs || BDB::nreqs) {
2406	IO::AIO::flush;	3686	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2407	Coro::cede;
2408	last unless IO::AIO::nreqs;
2409	warn "iterate...";
2410	}
2411
2412	warn "cancelling all extension coros";
2413	$_->cancel for values %EXT_CORO;
2414	%EXT_CORO = ();
2415
2416	warn "removing commands";
2417	%COMMAND = ();
2418
2419	warn "removing ext commands";
2420	%EXTCMD = ();
2421
2422	warn "unloading/nuking all extensions";
2423	for my $pkg (@EXTS) {
2424	warn "... unloading $pkg";
2425
2426	if (my $cb = $pkg->can ("unload")) {
2427	eval {
2428	$cb->($pkg);
2429	1
2430	} or warn "$pkg unloaded, but with errors: $@";
2431	}	3687	}
2432		3688
2433	warn "... nuking $pkg";	3689	warn "cancelling all extension coros";
2434	Symbol::delete_package $pkg;	3690	$_->cancel for values %EXT_CORO;
2435	}	3691	%EXT_CORO = ();
2436		3692
2437	warn "unloading all perl modules loaded from $LIBDIR";	3693	warn "removing commands";
2438	while (my ($k, $v) = each %INC) {	3694	%COMMAND = ();
2439	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2440		3695
		3696	warn "removing ext/exti commands";
		3697	%EXTCMD = ();
		3698	%EXTICMD = ();
		3699
		3700	warn "unloading/nuking all extensions";
		3701	for my $pkg (@EXTS) {
2441	warn "... unloading $k";	3702	warn "... unloading $pkg";
2442	delete $INC{$k};
2443		3703
2444	$k =~ s/\.pm$//;
2445	$k =~ s/\//::/g;
2446
2447	if (my $cb = $k->can ("unload_module")) {	3704	if (my $cb = $pkg->can ("unload")) {
		3705	eval {
2448	$cb->();	3706	$cb->($pkg);
		3707	1
		3708	} or warn "$pkg unloaded, but with errors: $@";
		3709	}
		3710
		3711	warn "... clearing $pkg";
		3712	clear_package $pkg;
2449	}	3713	}
2450		3714
2451	Symbol::delete_package $k;	3715	warn "unloading all perl modules loaded from $LIBDIR";
		3716	while (my ($k, $v) = each %INC) {
		3717	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3718
		3719	warn "... unloading $k";
		3720	delete $INC{$k};
		3721
		3722	$k =~ s/\.pm$//;
		3723	$k =~ s/\//::/g;
		3724
		3725	if (my $cb = $k->can ("unload_module")) {
		3726	$cb->();
		3727	}
		3728
		3729	clear_package $k;
2452	}	3730	}
2453		3731
2454	warn "getting rid of safe::, as good as possible";	3732	warn "getting rid of safe::, as good as possible";
2455	Symbol::delete_package "safe::$_"	3733	clear_package "safe::$_"
2456	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3734	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2457		3735
2458	warn "unloading cf.pm \"a bit\"";	3736	warn "unloading cf.pm \"a bit\"";
2459	delete $INC{"cf.pm"};	3737	delete $INC{"cf.pm"};
		3738	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2460		3739
2461	# don't, removes xs symbols, too,	3740	# don't, removes xs symbols, too,
2462	# and global variables created in xs	3741	# and global variables created in xs
2463	#Symbol::delete_package __PACKAGE__;	3742	#clear_package __PACKAGE__;
2464		3743
2465	warn "unload completed, starting to reload now";	3744	warn "unload completed, starting to reload now";
2466		3745
2467	warn "reloading cf.pm";	3746	warn "reloading cf.pm";
2468	require cf;	3747	require cf;
2469	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3748	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2470		3749
2471	warn "loading config and database again";	3750	warn "loading config and database again";
2472	cf::cfg_load;	3751	cf::reload_config;
2473	cf::db_load;
2474		3752
2475	warn "loading extensions";	3753	warn "loading extensions";
2476	cf::load_extensions;	3754	cf::load_extensions;
2477		3755
		3756	if ($REATTACH_ON_RELOAD) {
2478	warn "reattaching attachments to objects/players";	3757	warn "reattaching attachments to objects/players";
2479	_global_reattach;	3758	_global_reattach; # objects, sockets
2480	warn "reattaching attachments to maps";	3759	warn "reattaching attachments to maps";
2481	reattach $_ for values %MAP;	3760	reattach $_ for values %MAP;
		3761	warn "reattaching attachments to players";
		3762	reattach $_ for values %PLAYER;
		3763	}
2482		3764
2483	warn "loading reloadable resources";	3765	warn "running post_init jobs";
2484	load_resources;	3766	(pop @POST_INIT)->(1) while @POST_INIT;
2485		3767
2486	warn "restarting server ticker";	3768	warn "leaving sync_job";
2487		3769
2488	$TICK_WATCHER->start;	3770	1
		3771	} or do {
		3772	warn $@;
		3773	cf::cleanup "error while reloading, exiting.";
		3774	};
		3775
		3776	warn "reloaded";
		3777	--$RELOAD;
		3778	}
		3779
		3780	$t1 = EV::time - $t1;
		3781	warn "reload completed in ${t1}s\n";
		3782	};
		3783
		3784	our $RELOAD_WATCHER; # used only during reload
		3785
		3786	sub reload_perl() {
		3787	# doing reload synchronously and two reloads happen back-to-back,
		3788	# coro crashes during coro_state_free->destroy here.
		3789
		3790	$RELOAD_WATCHER ||= cf::async {
		3791	Coro::AIO::aio_wait cache_extensions;
		3792
		3793	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
		3794	do_reload_perl;
		3795	undef $RELOAD_WATCHER;
		3796	};
2489	};	3797	};
2490		3798	}
2491	if ($@) {
2492	warn $@;
2493	warn "error while reloading, exiting.";
2494	exit 1;
2495	}
2496
2497	warn "reloaded";
2498	};
2499
2500	our $RELOAD_WATCHER; # used only during reload
2501		3799
2502	register_command "reload" => sub {	3800	register_command "reload" => sub {
2503	my ($who, $arg) = @_;	3801	my ($who, $arg) = @_;
2504		3802
2505	if ($who->flag (FLAG_WIZ)) {	3803	if ($who->flag (FLAG_WIZ)) {
2506	$who->message ("reloading server.");	3804	$who->message ("reloading server.");
2507		3805	async {
2508	# doing reload synchronously and two reloads happen back-to-back,	3806	$Coro::current->{desc} = "perl_reload";
2509	# coro crashes during coro_state_free->destroy here.
2510
2511	$RELOAD_WATCHER ||= Event->timer (
2512	reentrant => 0,
2513	after => 0,
2514	data => WF_AUTOCANCEL,
2515	cb => sub {
2516	reload;	3807	reload_perl;
2517	undef $RELOAD_WATCHER;
2518	},
2519	);	3808	};
2520	}	3809	}
2521	};	3810	};
2522		3811
2523	unshift @INC, $LIBDIR;	3812	unshift @INC, $LIBDIR;
2524		3813
2525	my $bug_warning = 0;	3814	my $bug_warning = 0;
2526		3815
2527	$TICK_WATCHER = Event->timer (	3816	our @WAIT_FOR_TICK;
2528	reentrant => 0,	3817	our @WAIT_FOR_TICK_BEGIN;
2529	parked => 1,	3818
2530	prio => 0,	3819	sub wait_for_tick {
2531	at => $NEXT_TICK || $TICK,	3820	return if tick_inhibit || $Coro::current == $Coro::main;
2532	data => WF_AUTOCANCEL,	3821
2533	cb => sub {	3822	my $signal = new Coro::Signal;
		3823	push @WAIT_FOR_TICK, $signal;
		3824	$signal->wait;
		3825	}
		3826
		3827	sub wait_for_tick_begin {
		3828	return if tick_inhibit || $Coro::current == $Coro::main;
		3829
		3830	my $signal = new Coro::Signal;
		3831	push @WAIT_FOR_TICK_BEGIN, $signal;
		3832	$signal->wait;
		3833	}
		3834
		3835	sub tick {
2534	if ($Coro::current != $Coro::main) {	3836	if ($Coro::current != $Coro::main) {
2535	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3837	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2536	unless ++$bug_warning > 10;	3838	unless ++$bug_warning > 10;
2537	return;	3839	return;
2538	}	3840	}
2539		3841
2540	$NOW = Event::time;
2541
2542	cf::server_tick; # one server iteration	3842	cf::server_tick; # one server iteration
2543	$RUNTIME += $TICK;
2544	$NEXT_TICK += $TICK;
2545		3843
2546	$WAIT_FOR_TICK->broadcast;	3844	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2547	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3845	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		3846	Coro::async_pool {
		3847	$Coro::current->{desc} = "runtime saver";
		3848	write_runtime_sync
		3849	or warn "ERROR: unable to write runtime file: $!";
		3850	};
		3851	}
2548		3852
2549	Event::sweep;	3853	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2550	Coro::cede_notself;	3854	$sig->send;
		3855	}
		3856	while (my $sig = shift @WAIT_FOR_TICK) {
		3857	$sig->send;
		3858	}
		3859
		3860	$LOAD = ($NOW - $TICK_START) / $TICK;
		3861	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3862
		3863	if (0) {
		3864	if ($NEXT_TICK) {
		3865	my $jitter = $TICK_START - $NEXT_TICK;
		3866	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3867	warn "jitter $JITTER\n";#d#
2551		3868	}
2552	# my $AFTER = Event::time;
2553	# warn $AFTER - $NOW;#d#
2554
2555	# if we are delayed by four ticks or more, skip them all
2556	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2557
2558	$TICK_WATCHER->at ($NEXT_TICK);
2559	$TICK_WATCHER->start;
2560	},	3869	}
2561	);	3870	}
2562		3871
2563	{	3872	{
2564	BDB::max_poll_time $TICK * 0.1;	3873	# configure BDB
2565	$BDB_POLL_WATCHER = Event->io (	3874
2566	reentrant => 0,
2567	fd => BDB::poll_fileno,
2568	poll => 'r',
2569	prio => 0,
2570	data => WF_AUTOCANCEL,
2571	cb => \&BDB::poll_cb,
2572	);
2573	BDB::min_parallel 8;	3875	BDB::min_parallel 8;
2574		3876	BDB::max_poll_reqs $TICK * 0.1;
2575	BDB::set_sync_prepare {	3877	$AnyEvent::BDB::WATCHER->priority (1);
2576	my $status;
2577	my $current = $Coro::current;
2578	(
2579	sub {
2580	$status = $!;
2581	$current->ready; undef $current;
2582	},
2583	sub {
2584	Coro::schedule while defined $current;
2585	$! = $status;
2586	},
2587	)
2588	};
2589		3878
2590	unless ($DB_ENV) {	3879	unless ($DB_ENV) {
2591	$DB_ENV = BDB::db_env_create;	3880	$DB_ENV = BDB::db_env_create;
		3881	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3882	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3883	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3884	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3885	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2592		3886
2593	cf::sync_job {	3887	cf::sync_job {
		3888	eval {
2594	BDB::db_env_open	3889	BDB::db_env_open
2595	$DB_ENV,	3890	$DB_ENV,
2596	$BDB_ENV_DIR,	3891	$BDBDIR,
2597	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3892	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2598	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3893	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2599	0666;	3894	0666;
2600		3895
2601	cf::cleanup "$!" if $!;	3896	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2602		3897	};
2603	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);	3898
2604	$DB_ENV->set_lk_detect;	3899	cf::cleanup "db_env_open(db): $@" if $@;
2605	};	3900	};
2606	}	3901	}
		3902
		3903	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3904	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3905	};
		3906	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3907	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3908	};
		3909	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3910	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3911	};
2607	}	3912	}
2608		3913
2609	{	3914	{
		3915	# configure IO::AIO
		3916
2610	IO::AIO::min_parallel 8;	3917	IO::AIO::min_parallel 8;
2611
2612	undef $Coro::AIO::WATCHER;
2613	IO::AIO::max_poll_time $TICK * 0.1;	3918	IO::AIO::max_poll_time $TICK * 0.1;
2614	$AIO_POLL_WATCHER = Event->io (	3919	undef $AnyEvent::AIO::WATCHER;
2615	reentrant => 0,
2616	fd => IO::AIO::poll_fileno,
2617	poll => 'r',
2618	prio => 6,
2619	data => WF_AUTOCANCEL,
2620	cb => \&IO::AIO::poll_cb,
2621	);
2622	}	3920	}
2623		3921
2624	$WRITE_RUNTIME_WATCHER = Event->timer (	3922	my $_log_backtrace;
2625	reentrant => 0,	3923
2626	data => WF_AUTOCANCEL,	3924	sub _log_backtrace {
2627	after => 1,	3925	my ($msg, @addr) = @_;
2628	interval => 10,	3926
2629	prio => 6, # keep it lowest so it acts like a watchdog	3927	$msg =~ s/\n//;
2630	cb => Coro::unblock_sub {	3928
2631	write_runtime	3929	# limit the # of concurrent backtraces
2632	or warn "ERROR: unable to write runtime file: $!";	3930	if ($_log_backtrace < 2) {
		3931	++$_log_backtrace;
		3932	my $perl_bt = Carp::longmess $msg;
		3933	async {
		3934	$Coro::current->{desc} = "abt $msg";
		3935
		3936	my @bt = fork_call {
		3937	@addr = map { sprintf "%x", $_ } @addr;
		3938	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3939	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3940	or die "addr2line: $!";
		3941
		3942	my @funcs;
		3943	my @res = <$fh>;
		3944	chomp for @res;
		3945	while (@res) {
		3946	my ($func, $line) = splice @res, 0, 2, ();
		3947	push @funcs, "[$func] $line";
		3948	}
		3949
		3950	@funcs
		3951	};
		3952
		3953	LOG llevInfo, "[ABT] $perl_bt\n";
		3954	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3955	LOG llevInfo, "[ABT] $_\n" for @bt;
		3956	--$_log_backtrace;
		3957	};
		3958	} else {
		3959	LOG llevInfo, "[ABT] $msg\n";
		3960	LOG llevInfo, "[ABT] [suppressed]\n";
2633	},	3961	}
2634	);	3962	}
		3963
		3964	# load additional modules
		3965	require "cf/$_.pm" for @EXTRA_MODULES;
2635		3966
2636	END { cf::emergency_save }	3967	END { cf::emergency_save }
2637		3968
2638	1	3969	1
2639		3970

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