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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.178 by root, Thu Jan 18 00:06:55 2007 UTC vs.
Revision 1.453 by root, Tue Sep 23 04:29:11 2008 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 "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
13	use Coro 3.4 ();	37	use Coro ();
		38	use Coro::State;
		39	use Coro::Handle;
		40	use Coro::EV;
14	use Coro::Event;	41	use Coro::AnyEvent;
15	use Coro::Timer;	42	use Coro::Timer;
16	use Coro::Signal;	43	use Coro::Signal;
17	use Coro::Semaphore;	44	use Coro::Semaphore;
		45	use Coro::AnyEvent;
18	use Coro::AIO;	46	use Coro::AIO;
		47	use Coro::BDB 1.6;
		48	use Coro::Storable;
		49	use Coro::Util ();
19		50
		51	use JSON::XS 2.01 ();
		52	use BDB ();
20	use Data::Dumper;	53	use Data::Dumper;
21	use Digest::MD5;	54	use Digest::MD5;
22	use Fcntl;	55	use Fcntl;
		56	use YAML ();
23	use IO::AIO 2.32 ();	57	use IO::AIO ();
24	use YAML::Syck ();
25	use Time::HiRes;	58	use Time::HiRes;
		59	use Compress::LZF;
		60	use Digest::MD5 ();
26		61
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	62	AnyEvent::detect;
		63
		64	# configure various modules to our taste
		65	#
		66	$Storable::canonical = 1; # reduce rsync transfers
		67	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		68
		69	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		70
		71	# make sure c-lzf reinitialises itself
		72	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		73	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
28		74
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	75	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		76
36	our %COMMAND = ();	77	our %COMMAND = ();
37	our %COMMAND_TIME = ();	78	our %COMMAND_TIME = ();
38		79
39	our @EXTS = (); # list of extension package names	80	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	81	our %EXTCMD = ();
		82	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	83	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	84	our %EXT_MAP = (); # pluggable maps
43		85
		86	our $RELOAD; # number of reloads so far, non-zero while in reload
44	our @EVENT;	87	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		88
47	our $TICK = MAX_TIME * 1e-6;	89	our $CONFDIR = confdir;
48	our $TICK_WATCHER;	90	our $DATADIR = datadir;
49	our $AIO_POLL_WATCHER;	91	our $LIBDIR = "$DATADIR/ext";
50	our $WRITE_RUNTIME_WATCHER;	92	our $PODDIR = "$DATADIR/pod";
		93	our $MAPDIR = "$DATADIR/" . mapdir;
		94	our $LOCALDIR = localdir;
		95	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		96	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		97	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		98	our $RANDOMDIR = "$LOCALDIR/random";
		99	our $BDBDIR = "$LOCALDIR/db";
		100	our $PIDFILE = "$LOCALDIR/pid";
		101	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		102
		103	our %RESOURCE;
		104
		105	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		106	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	107	our $NEXT_TICK;
52	our $NOW;	108	our $USE_FSYNC = 1; # use fsync to write maps - default off
		109
		110	our $BDB_DEADLOCK_WATCHER;
		111	our $BDB_CHECKPOINT_WATCHER;
		112	our $BDB_TRICKLE_WATCHER;
		113	our $DB_ENV;
53		114
54	our %CFG;	115	our %CFG;
55		116
56	our $UPTIME; $UPTIME ||= time;	117	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	118	our $RUNTIME;
		119	our $NOW;
58		120
59	our %PLAYER; # all users	121	our (%PLAYER, %PLAYER_LOADING); # all users
60	our %MAP; # all maps	122	our (%MAP, %MAP_LOADING ); # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	123	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		124
67	# used to convert map paths into valid unix filenames by replacing / by ∕	125	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	126	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		127
		128	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		129	our $LOADAVG; # same thing, but with alpha-smoothing
		130	our $JITTER; # average jitter
		131	our $TICK_START; # for load detecting purposes
		132
		133	our @POST_INIT;
		134
70	binmode STDOUT;	135	binmode STDOUT;
71	binmode STDERR;	136	binmode STDERR;
72		137
73	# read virtual server time, if available	138	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	139	unless ($RUNTIME || !-e $RUNTIMEFILE) {
75	open my $fh, "<", cf::localdir . "/runtime"	140	open my $fh, "<", $RUNTIMEFILE
76	or die "unable to read runtime file: $!";	141	or die "unable to read $RUNTIMEFILE file: $!";
77	$RUNTIME = <$fh> + 0.;	142	$RUNTIME = <$fh> + 0.;
78	}	143	}
79		144
80	mkdir cf::localdir;	145	mkdir $_
81	mkdir cf::localdir . "/" . cf::playerdir;	146	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir cf::localdir . "/" . cf::tmpdir;
83	mkdir cf::localdir . "/" . cf::uniquedir;
84	mkdir $RANDOM_MAPS;
85		147
86	our $EMERGENCY_POSITION;	148	our $EMERGENCY_POSITION;
		149
		150	sub cf::map::normalise;
87		151
88	#############################################################################	152	#############################################################################
89		153
90	=head2 GLOBAL VARIABLES	154	=head2 GLOBAL VARIABLES
91		155
…		…
98	=item $cf::RUNTIME	162	=item $cf::RUNTIME
99		163
100	The time this server has run, starts at 0 and is increased by $cf::TICK on	164	The time this server has run, starts at 0 and is increased by $cf::TICK on
101	every server tick.	165	every server tick.
102		166
103	=item $cf::LIBDIR	167	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		168	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		169	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
104		170
105	The perl library directory, where extensions and cf-specific modules can	171	Various directories - "/etc", read-only install directory, perl-library
106	be found. It will be added to C<@INC> automatically.	172	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		173	unique-items directory, player file directory, random maps directory and
		174	database environment.
107		175
108	=item $cf::NOW	176	=item $cf::NOW
109		177
110	The time of the last (current) server tick.	178	The time of the last (current) server tick.
111		179
112	=item $cf::TICK	180	=item $cf::TICK
113		181
114	The interval between server ticks, in seconds.	182	The interval between server ticks, in seconds.
115		183
		184	=item $cf::LOADAVG
		185
		186	The current CPU load on the server (alpha-smoothed), as a value between 0
		187	(none) and 1 (overloaded), indicating how much time is spent on processing
		188	objects per tick. Healthy values are < 0.5.
		189
		190	=item $cf::LOAD
		191
		192	The raw value load value from the last tick.
		193
116	=item %cf::CFG	194	=item %cf::CFG
117		195
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	196	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
119	from wherever your confdir points to.	197	from wherever your confdir points to.
120		198
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	199	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		200
123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	201	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
124	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	202	returns directly I<after> the tick processing (and consequently, can only wake one process
125	processing has been done. Call C<< ->wait >> on them to maximise the	203	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
126	window of cpu time available, or simply to synchronise to the server tick.	204
		205	=item @cf::INVOKE_RESULTS
		206
		207	This array contains the results of the last C<invoke ()> call. When
		208	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		209	that call.
127		210
128	=back	211	=back
129		212
130	=cut	213	=cut
131		214
132	BEGIN {	215	BEGIN {
133	*CORE::GLOBAL::warn = sub {	216	*CORE::GLOBAL::warn = sub {
134	my $msg = join "", @_;	217	my $msg = join "", @_;
135	utf8::encode $msg;
136		218
137	$msg .= "\n"	219	$msg .= "\n"
138	unless $msg =~ /\n$/;	220	unless $msg =~ /\n$/;
139		221
		222	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		223
140	LOG llevError, $msg;	224	LOG llevError, $msg;
141	};	225	};
142	}	226	}
		227
		228	$Coro::State::DIEHOOK = sub {
		229	return unless $^S eq 0; # "eq", not "=="
		230
		231	if ($Coro::current == $Coro::main) {#d#
		232	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		233	return;#d#
		234	}#d#
		235
		236	# kill coroutine otherwise
		237	warn Carp::longmess $_[0];
		238	Coro::terminate
		239	};
		240
		241	$SIG{__DIE__} = sub { }; #d#?
143		242
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	243	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	244	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	245	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	246	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	247	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		248	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
149	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	249	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
150		250
151	# we bless all objects into (empty) derived classes to force a method lookup	251	# we bless all objects into (empty) derived classes to force a method lookup
152	# within the Safe compartment.	252	# within the Safe compartment.
153	for my $pkg (qw(	253	for my $pkg (qw(
154	cf::global cf::attachable	254	cf::global cf::attachable
155	cf::object cf::object::player	255	cf::object cf::object::player
156	cf::client cf::player	256	cf::client cf::player
157	cf::arch cf::living	257	cf::arch cf::living
		258	cf::map cf::mapspace
158	cf::map cf::party cf::region	259	cf::party cf::region
159	)) {	260	)) {
160	no strict 'refs';
161	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	261	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
162	}	262	}
163		263
164	$Event::DIED = sub {	264	$EV::DIED = sub {
165	warn "error in event callback: @_";	265	warn "error in event callback: @_";
166	};	266	};
		267
		268	#############################################################################
167		269
168	=head2 UTILITY FUNCTIONS	270	=head2 UTILITY FUNCTIONS
169		271
170	=over 4	272	=over 4
171		273
…		…
190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	292	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
191	$d	293	$d
192	} || "[unable to dump $_[0]: '$@']";	294	} || "[unable to dump $_[0]: '$@']";
193	}	295	}
194		296
195	use JSON::Syck (); # TODO# replace by JSON::PC once working
196
197	=item $ref = cf::from_json $json	297	=item $ref = cf::decode_json $json
198		298
199	Converts a JSON string into the corresponding perl data structure.	299	Converts a JSON string into the corresponding perl data structure.
200		300
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	301	=item $json = cf::encode_json $ref
209		302
210	Converts a perl data structure into its JSON representation.	303	Converts a perl data structure into its JSON representation.
211		304
212	=cut	305	=cut
213		306
214	sub to_json($) {	307	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	308
216	JSON::Syck::Dump $_[0]	309	sub encode_json($) { $json_coder->encode ($_[0]) }
		310	sub decode_json($) { $json_coder->decode ($_[0]) }
		311
		312	=item cf::post_init { BLOCK }
		313
		314	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		315	but I<before> the server starts ticking again.
		316
		317	The cdoeblock will have a single boolean argument to indicate whether this
		318	is a reload or not.
		319
		320	=cut
		321
		322	sub post_init(&) {
		323	push @POST_INIT, shift;
217	}	324	}
218		325
219	=item cf::lock_wait $string	326	=item cf::lock_wait $string
220		327
221	Wait until the given lock is available. See cf::lock_acquire.	328	Wait until the given lock is available. See cf::lock_acquire.
…		…
225	Wait until the given lock is available and then acquires it and returns	332	Wait until the given lock is available and then acquires it and returns
226	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	333	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
227	for example when the coroutine gets canceled), the lock is automatically	334	for example when the coroutine gets canceled), the lock is automatically
228	returned.	335	returned.
229		336
		337	Locks are *not* recursive, locking from the same coro twice results in a
		338	deadlocked coro.
		339
230	Lock names should begin with a unique identifier (for example, cf::map::find	340	Lock names should begin with a unique identifier (for example, cf::map::find
231	uses map_find and cf::map::load uses map_load).	341	uses map_find and cf::map::load uses map_load).
232		342
		343	=item $locked = cf::lock_active $string
		344
		345	Return true if the lock is currently active, i.e. somebody has locked it.
		346
233	=cut	347	=cut
234		348
235	our %LOCK;	349	our %LOCK;
		350	our %LOCKER;#d#
236		351
237	sub lock_wait($) {	352	sub lock_wait($) {
238	my ($key) = @_;	353	my ($key) = @_;
239		354
		355	if ($LOCKER{$key} == $Coro::current) {#d#
		356	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		357	return;#d#
		358	}#d#
		359
240	# wait for lock, if any	360	# wait for lock, if any
241	while ($LOCK{$key}) {	361	while ($LOCK{$key}) {
		362	#local $Coro::current->{desc} = "$Coro::current->{desc} <waiting for lock $key>";
242	push @{ $LOCK{$key} }, $Coro::current;	363	push @{ $LOCK{$key} }, $Coro::current;
243	Coro::schedule;	364	Coro::schedule;
244	}	365	}
245	}	366	}
246		367
…		…
249		370
250	# wait, to be sure we are not locked	371	# wait, to be sure we are not locked
251	lock_wait $key;	372	lock_wait $key;
252		373
253	$LOCK{$key} = [];	374	$LOCK{$key} = [];
		375	$LOCKER{$key} = $Coro::current;#d#
254		376
255	Coro::guard {	377	Coro::guard {
		378	delete $LOCKER{$key};#d#
256	# wake up all waiters, to be on the safe side	379	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };	380	$_->ready for @{ delete $LOCK{$key} };
258	}	381	}
259	}	382	}
260		383
		384	sub lock_active($) {
		385	my ($key) = @_;
		386
		387	! ! $LOCK{$key}
		388	}
		389
261	sub freeze_mainloop {	390	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	391	tick_inhibit_inc;
263		392
264	my $guard = Coro::guard {	393	Coro::guard \&tick_inhibit_dec;
265	$TICK_WATCHER->start;	394	}
266	$WRITE_RUNTIME_WATCHER->start;	395
		396	=item cf::periodic $interval, $cb
		397
		398	Like EV::periodic, but randomly selects a starting point so that the actions
		399	get spread over timer.
		400
		401	=cut
		402
		403	sub periodic($$) {
		404	my ($interval, $cb) = @_;
		405
		406	my $start = rand List::Util::min 180, $interval;
		407
		408	EV::periodic $start, $interval, 0, $cb
		409	}
		410
		411	=item cf::get_slot $time[, $priority[, $name]]
		412
		413	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		414	This call blocks and returns only when you have at least C<$time> seconds
		415	of cpu time till the next tick. The slot is only valid till the next cede.
		416
		417	The optional C<$name> can be used to identify the job to run. It might be
		418	used for statistical purposes and should identify the same time-class.
		419
		420	Useful for short background jobs.
		421
		422	=cut
		423
		424	our @SLOT_QUEUE;
		425	our $SLOT_QUEUE;
		426
		427	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		428	$SLOT_QUEUE = Coro::async {
		429	$Coro::current->desc ("timeslot manager");
		430
		431	my $signal = new Coro::Signal;
		432
		433	while () {
		434	next_job:
		435	my $avail = cf::till_tick;
		436	if ($avail > 0.01) {
		437	for (0 .. $#SLOT_QUEUE) {
		438	if ($SLOT_QUEUE[$_][0] < $avail) {
		439	my $job = splice @SLOT_QUEUE, $_, 1, ();
		440	$job->[2]->send;
		441	Coro::cede;
		442	goto next_job;
		443	}
		444	}
		445	}
		446
		447	if (@SLOT_QUEUE) {
		448	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		449	push @cf::WAIT_FOR_TICK, $signal;
		450	$signal->wait;
		451	} else {
		452	Coro::schedule;
		453	}
267	};	454	}
268	$WRITE_RUNTIME_WATCHER->stop;	455	};
269	$TICK_WATCHER->stop;	456
270	$guard	457	sub get_slot($;$$) {
		458	return if tick_inhibit || $Coro::current == $Coro::main;
		459
		460	my ($time, $pri, $name) = @_;
		461
		462	$time = $TICK * .6 if $time > $TICK * .6;
		463	my $sig = new Coro::Signal;
		464
		465	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		466	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		467	$SLOT_QUEUE->ready;
		468	$sig->wait;
271	}	469	}
272		470
273	=item cf::async { BLOCK }	471	=item cf::async { BLOCK }
274		472
275	Currently the same as Coro::async_pool, meaning you cannot use	473	Currently the same as Coro::async_pool, meaning you cannot use
…		…
280		478
281	BEGIN { *async = \&Coro::async_pool }	479	BEGIN { *async = \&Coro::async_pool }
282		480
283	=item cf::sync_job { BLOCK }	481	=item cf::sync_job { BLOCK }
284		482
285	The design of crossfire+ requires that the main coro ($Coro::main) is	483	The design of Deliantra requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	484	is always able to handle events or runnable, as Deliantra is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	485	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		486	acceptable.
288		487
289	If it must be done, put the blocking parts into C<sync_job>. This will run	488	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	489	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	490	server will be frozen during this time, so the block should either finish
292	fast or be very important.	491	fast or be very important.
…		…
295		494
296	sub sync_job(&) {	495	sub sync_job(&) {
297	my ($job) = @_;	496	my ($job) = @_;
298		497
299	if ($Coro::current == $Coro::main) {	498	if ($Coro::current == $Coro::main) {
		499	my $time = EV::time;
		500
300	# this is the main coro, too bad, we have to block	501	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	502	# till the operation succeeds, freezing the server :/
302		503
303	# TODO: use suspend/resume instead	504	LOG llevError, Carp::longmess "sync job";#d#
304	# (but this is cancel-safe)	505
305	my $freeze_guard = freeze_mainloop;	506	my $freeze_guard = freeze_mainloop;
306		507
307	my $busy = 1;	508	my $busy = 1;
308	my @res;	509	my @res;
309		510
310	(async {	511	(async {
		512	$Coro::current->desc ("sync job coro");
311	@res = eval { $job->() };	513	@res = eval { $job->() };
312	warn $@ if $@;	514	warn $@ if $@;
313	undef $busy;	515	undef $busy;
314	})->prio (Coro::PRIO_MAX);	516	})->prio (Coro::PRIO_MAX);
315		517
316	while ($busy) {	518	while ($busy) {
317	Coro::cede or Event::one_event;	519	if (Coro::nready) {
		520	Coro::cede_notself;
		521	} else {
		522	EV::loop EV::LOOP_ONESHOT;
318	}	523	}
		524	}
		525
		526	my $time = EV::time - $time;
		527
		528	$TICK_START += $time; # do not account sync jobs to server load
319		529
320	wantarray ? @res : $res[0]	530	wantarray ? @res : $res[0]
321	} else {	531	} else {
322	# we are in another coroutine, how wonderful, everything just works	532	# we are in another coroutine, how wonderful, everything just works
323		533
…		…
343	$EXT_CORO{$coro+0} = $coro;	553	$EXT_CORO{$coro+0} = $coro;
344		554
345	$coro	555	$coro
346	}	556	}
347		557
348	sub write_runtime {	558	=item fork_call { }, $args
349	my $runtime = cf::localdir . "/runtime";
350		559
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	560	Executes the given code block with the given arguments in a seperate
352	or return;	561	process, returning the results. Everything must be serialisable with
		562	Coro::Storable. May, of course, block. Note that the executed sub may
		563	never block itself or use any form of event handling.
353		564
354	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	565	=cut
355	(aio_write $fh, 0, (length $value), $value, 0) <= 0
356	and return;
357		566
358	aio_fsync $fh	567	sub fork_call(&@) {
359	and return;	568	my ($cb, @args) = @_;
360		569
361	close $fh	570	# we seemingly have to make a local copy of the whole thing,
362	or return;	571	# otherwise perl prematurely frees the stuff :/
		572	# TODO: investigate and fix (likely this will be rather laborious)
363		573
364	aio_rename "$runtime~", $runtime	574	my @res = Coro::Util::fork_eval {
365	and return;	575	reset_signals;
		576	&$cb
		577	}, @args;
366		578
		579	wantarray ? @res : $res[-1]
		580	}
		581
		582	=item $coin = coin_from_name $name
		583
		584	=cut
		585
		586	our %coin_alias = (
		587	"silver" => "silvercoin",
		588	"silvercoin" => "silvercoin",
		589	"silvercoins" => "silvercoin",
		590	"gold" => "goldcoin",
		591	"goldcoin" => "goldcoin",
		592	"goldcoins" => "goldcoin",
		593	"platinum" => "platinacoin",
		594	"platinumcoin" => "platinacoin",
		595	"platinumcoins" => "platinacoin",
		596	"platina" => "platinacoin",
		597	"platinacoin" => "platinacoin",
		598	"platinacoins" => "platinacoin",
		599	"royalty" => "royalty",
		600	"royalties" => "royalty",
		601	);
		602
		603	sub coin_from_name($) {
		604	$coin_alias{$_[0]}
		605	? cf::arch::find $coin_alias{$_[0]}
		606	: undef
		607	}
		608
		609	=item $value = cf::db_get $family => $key
		610
		611	Returns a single value from the environment database.
		612
		613	=item cf::db_put $family => $key => $value
		614
		615	Stores the given C<$value> in the family. It can currently store binary
		616	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		617
		618	=item $db = cf::db_table "name"
		619
		620	Create and/or open a new database table. The string must not be "db" and must be unique
		621	within each server.
		622
		623	=cut
		624
		625	sub db_table($) {
		626	my ($name) = @_;
		627	my $db = BDB::db_create $DB_ENV;
		628
		629	eval {
		630	$db->set_flags (BDB::CHKSUM);
		631
		632	utf8::encode $name;
		633	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		634	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		635	cf::cleanup "db_open(db): $!" if $!;
		636	};
		637	cf::cleanup "db_open(db): $@" if $@;
		638
		639	$db
		640	}
		641
		642	our $DB;
		643
		644	sub db_init {
		645	cf::sync_job {
		646	$DB ||= db_table "db";
		647	};
		648	}
		649
		650	sub db_get($$) {
		651	my $key = "$_[0]/$_[1]";
		652
		653	cf::sync_job {
		654	BDB::db_get $DB, undef, $key, my $data;
		655
		656	$! ? ()
		657	: $data
367	1	658	}
		659	}
		660
		661	sub db_put($$$) {
		662	BDB::dbreq_pri 4;
		663	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		664	}
		665
		666	=item cf::cache $id => [$paths...], $processversion => $process
		667
		668	Generic caching function that returns the value of the resource $id,
		669	caching and regenerating as required.
		670
		671	This function can block.
		672
		673	=cut
		674
		675	sub cache {
		676	my ($id, $src, $processversion, $process) = @_;
		677
		678	my $meta =
		679	join "\x00",
		680	$processversion,
		681	map {
		682	aio_stat $_
		683	and Carp::croak "$_: $!";
		684
		685	($_, (stat _)[7,9])
		686	} @$src;
		687
		688	my $dbmeta = db_get cache => "$id/meta";
		689	if ($dbmeta ne $meta) {
		690	# changed, we may need to process
		691
		692	my @data;
		693	my $md5;
		694
		695	for (0 .. $#$src) {
		696	0 <= aio_load $src->[$_], $data[$_]
		697	or Carp::croak "$src->[$_]: $!";
		698	}
		699
		700	# if processing is expensive, check
		701	# checksum first
		702	if (1) {
		703	$md5 =
		704	join "\x00",
		705	$processversion,
		706	map {
		707	cf::cede_to_tick;
		708	($src->[$_], Digest::MD5::md5_hex $data[$_])
		709	} 0.. $#$src;
		710
		711
		712	my $dbmd5 = db_get cache => "$id/md5";
		713	if ($dbmd5 eq $md5) {
		714	db_put cache => "$id/meta", $meta;
		715
		716	return db_get cache => "$id/data";
		717	}
		718	}
		719
		720	my $t1 = Time::HiRes::time;
		721	my $data = $process->(\@data);
		722	my $t2 = Time::HiRes::time;
		723
		724	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		725
		726	db_put cache => "$id/data", $data;
		727	db_put cache => "$id/md5" , $md5;
		728	db_put cache => "$id/meta", $meta;
		729
		730	return $data;
		731	}
		732
		733	db_get cache => "$id/data"
		734	}
		735
		736	=item cf::datalog type => key => value, ...
		737
		738	Log a datalog packet of the given type with the given key-value pairs.
		739
		740	=cut
		741
		742	sub datalog($@) {
		743	my ($type, %kv) = @_;
		744	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
368	}	745	}
369		746
370	=back	747	=back
371		748
372	=cut	749	=cut
373		750
374	#############################################################################	751	#############################################################################
375		752
376	=head2 ATTACHABLE OBJECTS	753	=head2 ATTACHABLE OBJECTS
377		754
378	Many objects in crossfire are so-called attachable objects. That means you can	755	Many objects in deliantra are so-called attachable objects. That means you can
379	attach callbacks/event handlers (a collection of which is called an "attachment")	756	attach callbacks/event handlers (a collection of which is called an "attachment")
380	to it. All such attachable objects support the following methods.	757	to it. All such attachable objects support the following methods.
381		758
382	In the following description, CLASS can be any of C<global>, C<object>	759	In the following description, CLASS can be any of C<global>, C<object>
383	C<player>, C<client> or C<map> (i.e. the attachable objects in	760	C<player>, C<client> or C<map> (i.e. the attachable objects in
384	crossfire+).	761	Deliantra).
385		762
386	=over 4	763	=over 4
387		764
388	=item $attachable->attach ($attachment, key => $value...)	765	=item $attachable->attach ($attachment, key => $value...)
389		766
…		…
433	=item cf::CLASS::attachment $name, ...	810	=item cf::CLASS::attachment $name, ...
434		811
435	Register an attachment by C<$name> through which attachable objects of the	812	Register an attachment by C<$name> through which attachable objects of the
436	given CLASS can refer to this attachment.	813	given CLASS can refer to this attachment.
437		814
438	Some classes such as crossfire maps and objects can specify attachments	815	Some classes such as deliantra maps and objects can specify attachments
439	that are attached at load/instantiate time, thus the need for a name.	816	that are attached at load/instantiate time, thus the need for a name.
440		817
441	These calls expect any number of the following handler/hook descriptions:	818	These calls expect any number of the following handler/hook descriptions:
442		819
443	=over 4	820	=over 4
…		…
552	$registry = $CB_TYPE[$object_type] ||= [];	929	$registry = $CB_TYPE[$object_type] ||= [];
553		930
554	} elsif ($type eq "subtype") {	931	} elsif ($type eq "subtype") {
555	defined $object_type or Carp::croak "subtype specified without type";	932	defined $object_type or Carp::croak "subtype specified without type";
556	my $object_subtype = shift @arg;	933	my $object_subtype = shift @arg;
557	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	934	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
558		935
559	} elsif ($type eq "package") {	936	} elsif ($type eq "package") {
560	my $pkg = shift @arg;	937	my $pkg = shift @arg;
561		938
562	while (my ($name, $id) = each %cb_id) {	939	while (my ($name, $id) = each %cb_id) {
…		…
591	_attach $registry, $klass, @attach;	968	_attach $registry, $klass, @attach;
592	}	969	}
593		970
594	$obj->{$name} = \%arg;	971	$obj->{$name} = \%arg;
595	} else {	972	} else {
596	warn "object uses attachment '$name' that is not available, postponing.\n";	973	warn "object uses attachment '$name' which is not available, postponing.\n";
597	}	974	}
598		975
599	$obj->{_attachment}{$name} = undef;	976	$obj->{_attachment}{$name} = undef;
600	}	977	}
601		978
…		…
603	if (ref $_[0]) {	980	if (ref $_[0]) {
604	_object_attach @_;	981	_object_attach @_;
605	} else {	982	} else {
606	_attach shift->_attach_registry, @_;	983	_attach shift->_attach_registry, @_;
607	}	984	}
		985	_recalc_want;
608	};	986	};
609		987
610	# all those should be optimised	988	# all those should be optimised
611	sub cf::attachable::detach {	989	sub cf::attachable::detach {
612	my ($obj, $name) = @_;	990	my ($obj, $name) = @_;
…		…
615	delete $obj->{_attachment}{$name};	993	delete $obj->{_attachment}{$name};
616	reattach ($obj);	994	reattach ($obj);
617	} else {	995	} else {
618	Carp::croak "cannot, currently, detach class attachments";	996	Carp::croak "cannot, currently, detach class attachments";
619	}	997	}
		998	_recalc_want;
620	};	999	};
621		1000
622	sub cf::attachable::attached {	1001	sub cf::attachable::attached {
623	my ($obj, $name) = @_;	1002	my ($obj, $name) = @_;
624		1003
…		…
639	";	1018	";
640	die if $@;	1019	die if $@;
641	}	1020	}
642		1021
643	our $override;	1022	our $override;
644	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1023	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
645		1024
646	sub override {	1025	sub override {
647	$override = 1;	1026	$override = 1;
648	@invoke_results = ();	1027	@INVOKE_RESULTS = (@_);
649	}	1028	}
650		1029
651	sub do_invoke {	1030	sub do_invoke {
652	my $event = shift;	1031	my $event = shift;
653	my $callbacks = shift;	1032	my $callbacks = shift;
654		1033
655	@invoke_results = ();	1034	@INVOKE_RESULTS = ();
656		1035
657	local $override;	1036	local $override;
658		1037
659	for (@$callbacks) {	1038	for (@$callbacks) {
660	eval { &{$_->[1]} };	1039	eval { &{$_->[1]} };
…		…
669	}	1048	}
670		1049
671	0	1050	0
672	}	1051	}
673		1052
674	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1053	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
675		1054
676	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1055	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
677		1056
678	Generate an object-specific event with the given arguments.	1057	Generate an object-specific event with the given arguments.
679		1058
680	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1059	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
681	removed in future versions), and there is no public API to access override	1060	removed in future versions), and there is no public API to access override
682	results (if you must, access C<@cf::invoke_results> directly).	1061	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
683		1062
684	=back	1063	=back
685		1064
686	=cut	1065	=cut
687		1066
688	#############################################################################	1067	#############################################################################
689	# object support	1068	# object support
		1069
		1070	sub _object_equal($$);
		1071	sub _object_equal($$) {
		1072	my ($a, $b) = @_;
		1073
		1074	return 0 unless (ref $a) eq (ref $b);
		1075
		1076	if ("HASH" eq ref $a) {
		1077	my @ka = keys %$a;
		1078	my @kb = keys %$b;
		1079
		1080	return 0 if @ka != @kb;
		1081
		1082	for (0 .. $#ka) {
		1083	return 0 unless $ka[$_] eq $kb[$_];
		1084	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1085	}
		1086
		1087	} elsif ("ARRAY" eq ref $a) {
		1088
		1089	return 0 if @$a != @$b;
		1090
		1091	for (0 .. $#$a) {
		1092	return 0 unless _object_equal $a->[$_], $b->[$_];
		1093	}
		1094
		1095	} elsif ($a ne $b) {
		1096	return 0;
		1097	}
		1098
		1099	1
		1100	}
		1101
		1102	our $SLOW_MERGES;#d#
		1103	sub _can_merge {
		1104	my ($ob1, $ob2) = @_;
		1105
		1106	++$SLOW_MERGES;#d#
		1107
		1108	# we do the slow way here
		1109	return _object_equal $ob1, $ob2
		1110	}
690		1111
691	sub reattach {	1112	sub reattach {
692	# basically do the same as instantiate, without calling instantiate	1113	# basically do the same as instantiate, without calling instantiate
693	my ($obj) = @_;	1114	my ($obj) = @_;
694		1115
		1116	# no longer needed after getting rid of delete_package?
695	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1117	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
696		1118
697	my $registry = $obj->registry;	1119	my $registry = $obj->registry;
698		1120
699	@$registry = ();	1121	@$registry = ();
700		1122
…		…
715	cf::attachable->attach (	1137	cf::attachable->attach (
716	prio => -1000000,	1138	prio => -1000000,
717	on_instantiate => sub {	1139	on_instantiate => sub {
718	my ($obj, $data) = @_;	1140	my ($obj, $data) = @_;
719		1141
720	$data = from_json $data;	1142	$data = decode_json $data;
721		1143
722	for (@$data) {	1144	for (@$data) {
723	my ($name, $args) = @$_;	1145	my ($name, $args) = @$_;
724		1146
725	$obj->attach ($name, %{$args || {} });	1147	$obj->attach ($name, %{$args || {} });
…		…
741	sub object_freezer_save {	1163	sub object_freezer_save {
742	my ($filename, $rdata, $objs) = @_;	1164	my ($filename, $rdata, $objs) = @_;
743		1165
744	sync_job {	1166	sync_job {
745	if (length $$rdata) {	1167	if (length $$rdata) {
		1168	utf8::decode (my $decname = $filename);
746	warn sprintf "saving %s (%d,%d)\n",	1169	warn sprintf "saving %s (%d,%d)\n",
747	$filename, length $$rdata, scalar @$objs;	1170	$decname, length $$rdata, scalar @$objs;
748		1171
749	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1172	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
750	chmod SAVE_MODE, $fh;	1173	aio_chmod $fh, SAVE_MODE;
751	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1174	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
752	aio_fsync $fh;	1175	aio_fsync $fh if $cf::USE_FSYNC;
753	close $fh;	1176	aio_close $fh;
754		1177
755	if (@$objs) {	1178	if (@$objs) {
756	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1179	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
757	chmod SAVE_MODE, $fh;	1180	aio_chmod $fh, SAVE_MODE;
758	my $data = Storable::nfreeze { version => 1, objs => $objs };	1181	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
759	aio_write $fh, 0, (length $data), $data, 0;	1182	aio_write $fh, 0, (length $data), $data, 0;
760	aio_fsync $fh;	1183	aio_fsync $fh if $cf::USE_FSYNC;
761	close $fh;	1184	aio_close $fh;
762	aio_rename "$filename.pst~", "$filename.pst";	1185	aio_rename "$filename.pst~", "$filename.pst";
763	}	1186	}
764	} else {	1187	} else {
765	aio_unlink "$filename.pst";	1188	aio_unlink "$filename.pst";
766	}	1189	}
…		…
771	}	1194	}
772	} else {	1195	} else {
773	aio_unlink $filename;	1196	aio_unlink $filename;
774	aio_unlink "$filename.pst";	1197	aio_unlink "$filename.pst";
775	}	1198	}
776	}	1199	};
777	}	1200	}
778		1201
779	sub object_freezer_as_string {	1202	sub object_freezer_as_string {
780	my ($rdata, $objs) = @_;	1203	my ($rdata, $objs) = @_;
781		1204
…		…
793	or return;	1216	or return;
794		1217
795	unless (aio_stat "$filename.pst") {	1218	unless (aio_stat "$filename.pst") {
796	(aio_load "$filename.pst", $av) >= 0	1219	(aio_load "$filename.pst", $av) >= 0
797	or return;	1220	or return;
		1221
798	$av = eval { (Storable::thaw $av)->{objs} };	1222	my $st = eval { Coro::Storable::thaw $av };
		1223	$av = $st->{objs};
799	}	1224	}
800		1225
		1226	utf8::decode (my $decname = $filename);
801	warn sprintf "loading %s (%d)\n",	1227	warn sprintf "loading %s (%d,%d)\n",
802	$filename, length $data, scalar @{$av || []};#d#	1228	$decname, length $data, scalar @{$av || []};
		1229
803	return ($data, $av);	1230	($data, $av)
804	}	1231	}
		1232
		1233	=head2 COMMAND CALLBACKS
		1234
		1235	=over 4
		1236
		1237	=cut
805		1238
806	#############################################################################	1239	#############################################################################
807	# command handling &c	1240	# command handling &c
808		1241
809	=item cf::register_command $name => \&callback($ob,$args);	1242	=item cf::register_command $name => \&callback($ob,$args);
…		…
822	push @{ $COMMAND{$name} }, [$caller, $cb];	1255	push @{ $COMMAND{$name} }, [$caller, $cb];
823	}	1256	}
824		1257
825	=item cf::register_extcmd $name => \&callback($pl,$packet);	1258	=item cf::register_extcmd $name => \&callback($pl,$packet);
826		1259
827	Register a callbackf ro execution when the client sends an extcmd packet.	1260	Register a callback for execution when the client sends an (synchronous)
		1261	extcmd packet. Ext commands will be processed in the order they are
		1262	received by the server, like other user commands. The first argument is
		1263	the logged-in player. Ext commands can only be processed after a player
		1264	has logged in successfully.
828		1265
829	If the callback returns something, it is sent back as if reply was being	1266	If the callback returns something, it is sent back as if reply was being
830	called.	1267	called.
831		1268
		1269	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1270
		1271	Register a callback for execution when the client sends an (asynchronous)
		1272	exticmd packet. Exti commands are processed by the server as soon as they
		1273	are received, i.e. out of order w.r.t. other commands. The first argument
		1274	is a client socket. Exti commands can be received anytime, even before
		1275	log-in.
		1276
		1277	If the callback returns something, it is sent back as if reply was being
		1278	called.
		1279
832	=cut	1280	=cut
833		1281
834	sub register_extcmd {	1282	sub register_extcmd {
835	my ($name, $cb) = @_;	1283	my ($name, $cb) = @_;
836		1284
837	$EXTCMD{$name} = $cb;	1285	$EXTCMD{$name} = $cb;
		1286	}
		1287
		1288	sub register_exticmd {
		1289	my ($name, $cb) = @_;
		1290
		1291	$EXTICMD{$name} = $cb;
838	}	1292	}
839		1293
840	cf::player->attach (	1294	cf::player->attach (
841	on_command => sub {	1295	on_command => sub {
842	my ($pl, $name, $params) = @_;	1296	my ($pl, $name, $params) = @_;
…		…
851	cf::override;	1305	cf::override;
852	},	1306	},
853	on_extcmd => sub {	1307	on_extcmd => sub {
854	my ($pl, $buf) = @_;	1308	my ($pl, $buf) = @_;
855		1309
856	my $msg = eval { from_json $buf };	1310	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
857		1311
858	if (ref $msg) {	1312	if (ref $msg) {
		1313	my ($type, $reply, @payload) =
		1314	"ARRAY" eq ref $msg
		1315	? @$msg
		1316	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1317
		1318	my @reply;
		1319
859	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1320	if (my $cb = $EXTCMD{$type}) {
860	if (my %reply = $cb->($pl, $msg)) {	1321	@reply = $cb->($pl, @payload);
861	$pl->ext_reply ($msg->{msgid}, %reply);
862	}
863	}	1322	}
		1323
		1324	$pl->ext_reply ($reply, @reply)
		1325	if $reply;
		1326
864	} else {	1327	} else {
865	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1328	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
866	}	1329	}
867		1330
868	cf::override;	1331	cf::override;
869	},	1332	},
870	);	1333	);
871		1334
872	sub load_extension {
873	my ($path) = @_;
874
875	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
876	my $base = $1;
877	my $pkg = $1;
878	$pkg =~ s/[^[:word:]]/_/g;
879	$pkg = "ext::$pkg";
880
881	warn "... loading '$path' into '$pkg'\n";
882
883	open my $fh, "<:utf8", $path
884	or die "$path: $!";
885
886	my $source =
887	"package $pkg; use strict; use utf8;\n"
888	. "#line 1 \"$path\"\n{\n"
889	. (do { local $/; <$fh> })
890	. "\n};\n1";
891
892	unless (eval $source) {
893	my $msg = $@ ? "$path: $@\n"
894	: "extension disabled.\n";
895	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
896	warn $@;
897	warn "mandatory extension failed to load, exiting.\n";
898	exit 1;
899	}
900	die $@;
901	}
902
903	push @EXTS, $pkg;
904	}
905
906	sub load_extensions {	1335	sub load_extensions {
		1336	cf::sync_job {
		1337	my %todo;
		1338
907	for my $ext (<$LIBDIR/*.ext>) {	1339	for my $path (<$LIBDIR/*.ext>) {
908	next unless -r $ext;	1340	next unless -r $path;
909	eval {	1341
910	load_extension $ext;	1342	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1343	my $base = $1;
		1344	my $pkg = $1;
		1345	$pkg =~ s/[^[:word:]]/_/g;
		1346	$pkg = "ext::$pkg";
		1347
		1348	open my $fh, "<:utf8", $path
		1349	or die "$path: $!";
		1350
		1351	my $source = do { local $/; <$fh> };
		1352
		1353	my %ext = (
		1354	path => $path,
		1355	base => $base,
		1356	pkg => $pkg,
		1357	);
		1358
		1359	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1360	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1361
		1362	$ext{source} =
		1363	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1364	. "#line 1 \"$path\"\n{\n"
		1365	. $source
		1366	. "\n};\n1";
		1367
		1368	$todo{$base} = \%ext;
		1369	}
		1370
		1371	my %done;
		1372	while (%todo) {
		1373	my $progress;
		1374
		1375	while (my ($k, $v) = each %todo) {
		1376	for (split /,\s*/, $v->{meta}{depends}) {
		1377	goto skip
		1378	unless exists $done{$_};
		1379	}
		1380
		1381	warn "... loading '$k' into '$v->{pkg}'\n";
		1382
		1383	unless (eval $v->{source}) {
		1384	my $msg = $@ ? "$v->{path}: $@\n"
		1385	: "$v->{base}: extension inactive.\n";
		1386
		1387	if (exists $v->{meta}{mandatory}) {
		1388	warn $msg;
		1389	cf::cleanup "mandatory extension failed to load, exiting.";
		1390	}
		1391
		1392	warn $msg;
		1393	}
		1394
		1395	$done{$k} = delete $todo{$k};
		1396	push @EXTS, $v->{pkg};
		1397	$progress = 1;
911	1	1398	}
912	} or warn "$ext not loaded: $@";	1399
		1400	skip:
		1401	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1402	unless $progress;
		1403	}
913	}	1404	};
914	}	1405	}
915		1406
916	#############################################################################	1407	#############################################################################
917		1408
		1409	=back
		1410
918	=head2 CORE EXTENSIONS	1411	=head2 CORE EXTENSIONS
919		1412
920	Functions and methods that extend core crossfire objects.	1413	Functions and methods that extend core deliantra objects.
921		1414
922	=cut	1415	=cut
923		1416
924	package cf::player;	1417	package cf::player;
925		1418
…		…
927		1420
928	=head3 cf::player	1421	=head3 cf::player
929		1422
930	=over 4	1423	=over 4
931		1424
		1425	=item cf::player::num_playing
		1426
		1427	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1428
		1429	=cut
		1430
		1431	sub num_playing {
		1432	scalar grep
		1433	$_->ob->map
		1434	&& !$_->hidden
		1435	&& !$_->ob->flag (cf::FLAG_WIZ),
		1436	cf::player::list
		1437	}
		1438
932	=item cf::player::find $login	1439	=item cf::player::find $login
933		1440
934	Returns the given player object, loading it if necessary (might block).	1441	Returns the given player object, loading it if necessary (might block).
935		1442
936	=cut	1443	=cut
937		1444
938	sub playerdir($) {	1445	sub playerdir($) {
939	cf::localdir	1446	"$PLAYERDIR/"
940	. "/"
941	. cf::playerdir
942	. "/"
943	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1447	. (ref $_[0] ? $_[0]->ob->name : $_[0])
944	}	1448	}
945		1449
946	sub path($) {	1450	sub path($) {
947	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1451	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
948		1452
949	(playerdir $login) . "/$login.pl"	1453	(playerdir $login) . "/playerdata"
950	}	1454	}
951		1455
952	sub find_active($) {	1456	sub find_active($) {
953	$cf::PLAYER{$_[0]}	1457	$cf::PLAYER{$_[0]}
954	and $cf::PLAYER{$_[0]}->active	1458	and $cf::PLAYER{$_[0]}->active
…		…
957		1461
958	sub exists($) {	1462	sub exists($) {
959	my ($login) = @_;	1463	my ($login) = @_;
960		1464
961	$cf::PLAYER{$login}	1465	$cf::PLAYER{$login}
962	or cf::sync_job { !aio_stat $login }	1466	or !aio_stat path $login
963	}	1467	}
964		1468
965	sub find($) {	1469	sub find($) {
966	return $cf::PLAYER{$_[0]} || do {	1470	return $cf::PLAYER{$_[0]} || do {
967	my $login = $_[0];	1471	my $login = $_[0];
968		1472
969	my $guard = cf::lock_acquire "user_find:$login";	1473	my $guard = cf::lock_acquire "user_find:$login";
970		1474
971	$cf::PLAYER{$_[0]} || do {	1475	$cf::PLAYER{$_[0]} || do {
972	my $pl = load_pl path $login	1476	# rename old playerfiles to new ones
		1477	#TODO: remove when no longer required
		1478	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1479	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1480	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1481	aio_unlink +(playerdir $login) . "/$login.pl";
		1482
		1483	my $f = new_from_file cf::object::thawer path $login
973	or return;	1484	or return;
		1485
		1486	my $pl = cf::player::load_pl $f
		1487	or return;
		1488
		1489	local $cf::PLAYER_LOADING{$login} = $pl;
		1490	$f->resolve_delayed_derefs;
974	$cf::PLAYER{$login} = $pl	1491	$cf::PLAYER{$login} = $pl
975	}	1492	}
976	}	1493	}
977	}	1494	}
978		1495
…		…
987	return if $pl->{deny_save};	1504	return if $pl->{deny_save};
988		1505
989	aio_mkdir playerdir $pl, 0770;	1506	aio_mkdir playerdir $pl, 0770;
990	$pl->{last_save} = $cf::RUNTIME;	1507	$pl->{last_save} = $cf::RUNTIME;
991		1508
		1509	cf::get_slot 0.01;
		1510
992	$pl->save_pl ($path);	1511	$pl->save_pl ($path);
993	Coro::cede;	1512	cf::cede_to_tick;
994	}	1513	}
995		1514
996	sub new($) {	1515	sub new($) {
997	my ($login) = @_;	1516	my ($login) = @_;
998		1517
…		…
1004	$cf::PLAYER{$login} = $self;	1523	$cf::PLAYER{$login} = $self;
1005		1524
1006	$self	1525	$self
1007	}	1526	}
1008		1527
		1528	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1529
		1530	=cut
		1531
		1532	sub send_msg {
		1533	my $ns = shift->ns
		1534	or return;
		1535	$ns->send_msg (@_);
		1536	}
		1537
1009	=item $pl->quit_character	1538	=item $pl->quit_character
1010		1539
1011	Nukes the player without looking back. If logged in, the connection will	1540	Nukes the player without looking back. If logged in, the connection will
1012	be destroyed. May block for a long time.	1541	be destroyed. May block for a long time.
1013		1542
1014	=cut	1543	=cut
1015		1544
1016	sub quit_character {	1545	sub quit_character {
1017	my ($pl) = @_;	1546	my ($pl) = @_;
1018		1547
		1548	my $name = $pl->ob->name;
		1549
1019	$pl->{deny_save} = 1;	1550	$pl->{deny_save} = 1;
1020	$pl->password ("*"); # this should lock out the player until we nuked the dir	1551	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1021		1552
1022	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1553	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1023	$pl->deactivate;	1554	$pl->deactivate;
		1555	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1556	$pl->ob->check_score;
1024	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1557	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1025	$pl->ns->destroy if $pl->ns;	1558	$pl->ns->destroy if $pl->ns;
1026		1559
1027	my $path = playerdir $pl;	1560	my $path = playerdir $pl;
1028	my $temp = "$path~$cf::RUNTIME~deleting~";	1561	my $temp = "$path~$cf::RUNTIME~deleting~";
1029	aio_rename $path, $temp;	1562	aio_rename $path, $temp;
1030	delete $cf::PLAYER{$pl->ob->name};	1563	delete $cf::PLAYER{$pl->ob->name};
1031	$pl->destroy;	1564	$pl->destroy;
		1565
		1566	my $prefix = qr<^~\Q$name\E/>;
		1567
		1568	# nuke player maps
		1569	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1570
1032	IO::AIO::aio_rmtree $temp;	1571	IO::AIO::aio_rmtree $temp;
		1572	}
		1573
		1574	=item $pl->kick
		1575
		1576	Kicks a player out of the game. This destroys the connection.
		1577
		1578	=cut
		1579
		1580	sub kick {
		1581	my ($pl, $kicker) = @_;
		1582
		1583	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1584	$pl->killer ("kicked");
		1585	$pl->ns->destroy;
1033	}	1586	}
1034		1587
1035	=item cf::player::list_logins	1588	=item cf::player::list_logins
1036		1589
1037	Returns am arrayref of all valid playernames in the system, can take a	1590	Returns am arrayref of all valid playernames in the system, can take a
1038	while and may block, so not sync_job-capable, ever.	1591	while and may block, so not sync_job-capable, ever.
1039		1592
1040	=cut	1593	=cut
1041		1594
1042	sub list_logins {	1595	sub list_logins {
1043	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1596	my $dirs = aio_readdir $PLAYERDIR
1044	or return [];	1597	or return [];
1045		1598
1046	my @logins;	1599	my @logins;
1047		1600
1048	for my $login (@$dirs) {	1601	for my $login (@$dirs) {
		1602	my $path = path $login;
		1603
		1604	# a .pst is a dead give-away for a valid player
		1605	# if no pst file found, open and chekc for blocked users
		1606	if (aio_stat "$path.pst") {
1049	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1607	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1050	aio_read $fh, 0, 512, my $buf, 0 or next;	1608	aio_read $fh, 0, 512, my $buf, 0 or next;
1051	$buf !~ /^password -------------$/m or next; # official not-valid tag	1609	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1610	}
1052		1611
1053	utf8::decode $login;	1612	utf8::decode $login;
1054	push @logins, $login;	1613	push @logins, $login;
1055	}	1614	}
1056		1615
…		…
1064		1623
1065	=cut	1624	=cut
1066		1625
1067	sub maps($) {	1626	sub maps($) {
1068	my ($pl) = @_;	1627	my ($pl) = @_;
		1628
		1629	$pl = ref $pl ? $pl->ob->name : $pl;
1069		1630
1070	my $files = aio_readdir playerdir $pl	1631	my $files = aio_readdir playerdir $pl
1071	or return;	1632	or return;
1072		1633
1073	my @paths;	1634	my @paths;
…		…
1075	for (@$files) {	1636	for (@$files) {
1076	utf8::decode $_;	1637	utf8::decode $_;
1077	next if /\.(?:pl|pst)$/;	1638	next if /\.(?:pl|pst)$/;
1078	next unless /^$PATH_SEP/o;	1639	next unless /^$PATH_SEP/o;
1079		1640
1080	s/\.map$//;	1641	push @paths, cf::map::normalise "~$pl/$_";
1081	push @paths, "~" . $pl->ob->name . "/" . $_;
1082	}	1642	}
1083		1643
1084	\@paths	1644	\@paths
1085	}	1645	}
1086		1646
		1647	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1648
		1649	Expand deliantra pod fragments into protocol xml.
		1650
1087	=item $player->ext_reply ($msgid, $msgtype, %msg)	1651	=item $player->ext_reply ($msgid, @msg)
1088		1652
1089	Sends an ext reply to the player.	1653	Sends an ext reply to the player.
1090		1654
1091	=cut	1655	=cut
1092		1656
1093	sub ext_reply($$$%) {	1657	sub ext_reply($$@) {
1094	my ($self, $id, %msg) = @_;	1658	my ($self, $id, @msg) = @_;
1095		1659
1096	$msg{msgid} = $id;	1660	$self->ns->ext_reply ($id, @msg)
1097
1098	$self->send ("ext " . cf::to_json \%msg);
1099	}	1661	}
1100		1662
1101	package cf;	1663	=item $player->ext_msg ($type, @msg)
		1664
		1665	Sends an ext event to the client.
		1666
		1667	=cut
		1668
		1669	sub ext_msg($$@) {
		1670	my ($self, $type, @msg) = @_;
		1671
		1672	$self->ns->ext_msg ($type, @msg);
		1673	}
		1674
		1675	=head3 cf::region
		1676
		1677	=over 4
		1678
		1679	=cut
		1680
		1681	package cf::region;
		1682
		1683	=item cf::region::find_by_path $path
		1684
		1685	Tries to decuce the likely region for a map knowing only its path.
		1686
		1687	=cut
		1688
		1689	sub find_by_path($) {
		1690	my ($path) = @_;
		1691
		1692	my ($match, $specificity);
		1693
		1694	for my $region (list) {
		1695	if ($region->{match} && $path =~ $region->{match}) {
		1696	($match, $specificity) = ($region, $region->specificity)
		1697	if $region->specificity > $specificity;
		1698	}
		1699	}
		1700
		1701	$match
		1702	}
1102		1703
1103	=back	1704	=back
1104
1105		1705
1106	=head3 cf::map	1706	=head3 cf::map
1107		1707
1108	=over 4	1708	=over 4
1109		1709
…		…
1121	our $MAX_RESET = 3600;	1721	our $MAX_RESET = 3600;
1122	our $DEFAULT_RESET = 3000;	1722	our $DEFAULT_RESET = 3000;
1123		1723
1124	sub generate_random_map {	1724	sub generate_random_map {
1125	my ($self, $rmp) = @_;	1725	my ($self, $rmp) = @_;
		1726
		1727	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1728
1126	# mit "rum" bekleckern, nicht	1729	# mit "rum" bekleckern, nicht
1127	$self->_create_random_map (	1730	$self->_create_random_map (
1128	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1731	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1129	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1732	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1130	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1733	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1137	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1740	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1138	(cf::region::find $rmp->{region}), $rmp->{custom}	1741	(cf::region::find $rmp->{region}), $rmp->{custom}
1139	)	1742	)
1140	}	1743	}
1141		1744
		1745	=item cf::map->register ($regex, $prio)
		1746
		1747	Register a handler for the map path matching the given regex at the
		1748	givne priority (higher is better, built-in handlers have priority 0, the
		1749	default).
		1750
		1751	=cut
		1752
1142	sub register {	1753	sub register {
1143	my (undef, $regex) = @_;	1754	my (undef, $regex, $prio) = @_;
1144	my $pkg = caller;	1755	my $pkg = caller;
1145		1756
1146	no strict;	1757	no strict;
1147	push @{"$pkg\::ISA"}, __PACKAGE__;	1758	push @{"$pkg\::ISA"}, __PACKAGE__;
1148		1759
1149	$EXT_MAP{$pkg} = qr<$regex>;	1760	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1150	}	1761	}
1151		1762
1152	# also paths starting with '/'	1763	# also paths starting with '/'
1153	$EXT_MAP{"cf::map"} = qr{^(?=/)};	1764	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
1154		1765
1155	sub thawer_merge {	1766	sub thawer_merge {
1156	my ($self, $merge) = @_;	1767	my ($self, $merge) = @_;
1157		1768
1158	# we have to keep some variables in memory intact	1769	# we have to keep some variables in memory intact
1159	local $self->{path};	1770	local $self->{path};
1160	local $self->{load_path};	1771	local $self->{load_path};
1161	local $self->{deny_save};
1162	local $self->{deny_reset};
1163		1772
1164	$self->SUPER::thawer_merge ($merge);	1773	$self->SUPER::thawer_merge ($merge);
1165	}	1774	}
1166		1775
1167	sub normalise {	1776	sub normalise {
1168	my ($path, $base) = @_;	1777	my ($path, $base) = @_;
		1778
		1779	$path = "$path"; # make sure its a string
		1780
		1781	$path =~ s/\.map$//;
1169		1782
1170	# map plan:	1783	# map plan:
1171	#	1784	#
1172	# /! non-realised random map exit (special hack!)	1785	# /! non-realised random map exit (special hack!)
1173	# {... are special paths that are not being touched	1786	# {... are special paths that are not being touched
…		…
1201		1814
1202	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	1815	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1203		1816
1204	$path = normalise $path, $base;	1817	$path = normalise $path, $base;
1205		1818
1206	for my $pkg (keys %EXT_MAP) {	1819	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1207	if ($path =~ $EXT_MAP{$pkg}) {	1820	if ($path =~ $EXT_MAP{$pkg}[1]) {
1208	my $self = bless cf::map::new, $pkg;	1821	my $self = bless cf::map::new, $pkg;
1209	$self->{path} = $path; $self->path ($path);	1822	$self->{path} = $path; $self->path ($path);
1210	$self->init; # pass $1 etc.	1823	$self->init; # pass $1 etc.
1211	return $self;	1824	return $self;
1212	}	1825	}
1213	}	1826	}
1214		1827
1215	Carp::carp "unable to resolve path '$path'.";	1828	Carp::cluck "unable to resolve path '$path' (base '$base').";
1216	()	1829	()
1217	}	1830	}
1218		1831
1219	sub init {	1832	sub init {
1220	my ($self) = @_;	1833	my ($self) = @_;
…		…
1235		1848
1236	# the original (read-only) location	1849	# the original (read-only) location
1237	sub load_path {	1850	sub load_path {
1238	my ($self) = @_;	1851	my ($self) = @_;
1239		1852
1240	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1853	"$MAPDIR/$self->{path}.map"
1241	}	1854	}
1242		1855
1243	# the temporary/swap location	1856	# the temporary/swap location
1244	sub save_path {	1857	sub save_path {
1245	my ($self) = @_;	1858	my ($self) = @_;
1246		1859
1247	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1860	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1248	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1861	"$TMPDIR/$path.map"
1249	}	1862	}
1250		1863
1251	# the unique path, undef == no special unique path	1864	# the unique path, undef == no special unique path
1252	sub uniq_path {	1865	sub uniq_path {
1253	my ($self) = @_;	1866	my ($self) = @_;
1254		1867
1255	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1868	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1256	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1869	"$UNIQUEDIR/$path"
1257	}	1870	}
1258		1871
1259	# and all this just because we cannot iterate over	1872	# and all this just because we cannot iterate over
1260	# all maps in C++...	1873	# all maps in C++...
1261	sub change_all_map_light {	1874	sub change_all_map_light {
…		…
1263		1876
1264	$_->change_map_light ($change)	1877	$_->change_map_light ($change)
1265	for grep $_->outdoor, values %cf::MAP;	1878	for grep $_->outdoor, values %cf::MAP;
1266	}	1879	}
1267		1880
		1881	sub decay_objects {
		1882	my ($self) = @_;
		1883
		1884	return if $self->{deny_reset};
		1885
		1886	$self->do_decay_objects;
		1887	}
		1888
1268	sub unlink_save {	1889	sub unlink_save {
1269	my ($self) = @_;	1890	my ($self) = @_;
1270		1891
1271	utf8::encode (my $save = $self->save_path);	1892	utf8::encode (my $save = $self->save_path);
1272	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1893	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1275		1896
1276	sub load_header_from($) {	1897	sub load_header_from($) {
1277	my ($self, $path) = @_;	1898	my ($self, $path) = @_;
1278		1899
1279	utf8::encode $path;	1900	utf8::encode $path;
1280	aio_open $path, O_RDONLY, 0	1901	my $f = new_from_file cf::object::thawer $path
1281	or return;	1902	or return;
1282		1903
1283	$self->_load_header ($path)	1904	$self->_load_header ($f)
1284	or return;	1905	or return;
1285		1906
		1907	local $MAP_LOADING{$self->{path}} = $self;
		1908	$f->resolve_delayed_derefs;
		1909
1286	$self->{load_path} = $path;	1910	$self->{load_path} = $path;
1287		1911
1288	1	1912	1
1289	}	1913	}
1290		1914
1291	sub load_orig {	1915	sub load_header_orig {
1292	my ($self) = @_;	1916	my ($self) = @_;
1293		1917
1294	$self->load_header_from ($self->load_path)	1918	$self->load_header_from ($self->load_path)
1295	}	1919	}
1296		1920
1297	sub load_temp {	1921	sub load_header_temp {
1298	my ($self) = @_;	1922	my ($self) = @_;
1299		1923
1300	$self->load_header_from ($self->save_path)	1924	$self->load_header_from ($self->save_path)
		1925	}
		1926
		1927	sub prepare_temp {
		1928	my ($self) = @_;
		1929
		1930	$self->last_access ((delete $self->{last_access})
		1931	|| $cf::RUNTIME); #d#
		1932	# safety
		1933	$self->{instantiate_time} = $cf::RUNTIME
		1934	if $self->{instantiate_time} > $cf::RUNTIME;
		1935	}
		1936
		1937	sub prepare_orig {
		1938	my ($self) = @_;
		1939
		1940	$self->{load_original} = 1;
		1941	$self->{instantiate_time} = $cf::RUNTIME;
		1942	$self->last_access ($cf::RUNTIME);
		1943	$self->instantiate;
1301	}	1944	}
1302		1945
1303	sub load_header {	1946	sub load_header {
1304	my ($self) = @_;	1947	my ($self) = @_;
1305		1948
1306	if ($self->load_temp) {	1949	if ($self->load_header_temp) {
1307	$self->last_access ((delete $self->{last_access})	1950	$self->prepare_temp;
1308	|| $cf::RUNTIME); #d#
1309	# safety
1310	$self->{instantiate_time} = $cf::RUNTIME
1311	if $self->{instantiate_time} > $cf::RUNTIME;
1312	} else {	1951	} else {
1313	$self->load_orig	1952	$self->load_header_orig
1314	or return;	1953	or return;
1315		1954	$self->prepare_orig;
1316	$self->{load_original} = 1;
1317	$self->{instantiate_time} = $cf::RUNTIME;
1318	$self->last_access ($cf::RUNTIME);
1319	$self->instantiate;
1320	}	1955	}
		1956
		1957	$self->{deny_reset} = 1
		1958	if $self->no_reset;
		1959
		1960	$self->default_region (cf::region::find_by_path $self->{path})
		1961	unless $self->default_region;
1321		1962
1322	1	1963	1
1323	}	1964	}
1324		1965
1325	sub find;	1966	sub find;
1326	sub find {	1967	sub find {
1327	my ($path, $origin) = @_;	1968	my ($path, $origin) = @_;
1328		1969
1329	$path = normalise $path, $origin && $origin->path;	1970	$path = normalise $path, $origin && $origin->path;
1330		1971
		1972	cf::lock_wait "map_data:$path";#d#remove
1331	cf::lock_wait "map_find:$path";	1973	cf::lock_wait "map_find:$path";
1332		1974
1333	$cf::MAP{$path} || do {	1975	$cf::MAP{$path} || do {
		1976	my $guard1 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1334	my $guard = cf::lock_acquire "map_find:$path";	1977	my $guard2 = cf::lock_acquire "map_find:$path";
		1978
1335	my $map = new_from_path cf::map $path	1979	my $map = new_from_path cf::map $path
1336	or return;	1980	or return;
1337		1981
1338	$map->{last_save} = $cf::RUNTIME;	1982	$map->{last_save} = $cf::RUNTIME;
1339		1983
1340	$map->load_header	1984	$map->load_header
1341	or return;	1985	or return;
1342		1986
1343	if ($map->should_reset) {	1987	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1988	# doing this can freeze the server in a sync job, obviously
1344	$cf::WAIT_FOR_TICK->wait;	1989	#$cf::WAIT_FOR_TICK->wait;
		1990	undef $guard2;
		1991	undef $guard1;
1345	$map->reset;	1992	$map->reset;
1346	undef $guard;
1347	$map = find $path	1993	return find $path;
1348	or return;
1349	}	1994	}
1350		1995
1351	$cf::MAP{$path} = $map	1996	$cf::MAP{$path} = $map
1352	}	1997	}
1353	}	1998	}
		1999
		2000	sub pre_load { }
		2001	sub post_load { }
1354		2002
1355	sub load {	2003	sub load {
1356	my ($self) = @_;	2004	my ($self) = @_;
1357		2005
		2006	local $self->{deny_reset} = 1; # loading can take a long time
		2007
1358	my $path = $self->{path};	2008	my $path = $self->{path};
		2009
		2010	{
1359	my $guard = cf::lock_acquire "map_load:$path";	2011	my $guard = cf::lock_acquire "map_data:$path";
1360		2012
		2013	return unless $self->valid;
1361	return if $self->in_memory != cf::MAP_SWAPPED;	2014	return unless $self->in_memory == cf::MAP_SWAPPED;
1362		2015
1363	$self->in_memory (cf::MAP_LOADING);	2016	$self->in_memory (cf::MAP_LOADING);
1364		2017
1365	$self->alloc;	2018	$self->alloc;
1366	$self->_load_objects ($self->{load_path}, 1)	2019
		2020	$self->pre_load;
		2021	cf::cede_to_tick;
		2022
		2023	my $f = new_from_file cf::object::thawer $self->{load_path};
		2024	$f->skip_block;
		2025	$self->_load_objects ($f)
1367	or return;	2026	or return;
1368		2027
1369	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2028	$self->post_load_original
1370	if delete $self->{load_original};	2029	if delete $self->{load_original};
1371		2030
1372	if (my $uniq = $self->uniq_path) {	2031	if (my $uniq = $self->uniq_path) {
1373	utf8::encode $uniq;	2032	utf8::encode $uniq;
1374	if (aio_open $uniq, O_RDONLY, 0) {	2033	unless (aio_stat $uniq) {
		2034	if (my $f = new_from_file cf::object::thawer $uniq) {
1375	$self->clear_unique_items;	2035	$self->clear_unique_items;
1376	$self->_load_objects ($uniq, 0);	2036	$self->_load_objects ($f);
		2037	$f->resolve_delayed_derefs;
		2038	}
1377	}	2039	}
1378	}	2040	}
1379		2041
1380	Coro::cede;	2042	$f->resolve_delayed_derefs;
1381		2043
		2044	cf::cede_to_tick;
1382	# now do the right thing for maps	2045	# now do the right thing for maps
1383	$self->link_multipart_objects;	2046	$self->link_multipart_objects;
1384
1385	unless ($self->{deny_activate}) {
1386	$self->decay_objects;
1387	$self->fix_auto_apply;
1388	$self->update_buttons;
1389	Coro::cede;
1390	$self->set_darkness_map;
1391	$self->difficulty ($self->estimate_difficulty)	2047	$self->difficulty ($self->estimate_difficulty)
1392	unless $self->difficulty;	2048	unless $self->difficulty;
1393	Coro::cede;	2049	cf::cede_to_tick;
		2050
		2051	unless ($self->{deny_activate}) {
		2052	$self->decay_objects;
		2053	$self->fix_auto_apply;
		2054	$self->update_buttons;
		2055	cf::cede_to_tick;
		2056	$self->set_darkness_map;
		2057	cf::cede_to_tick;
1394	$self->activate;	2058	$self->activate;
1395	}	2059	}
1396		2060
		2061	$self->{last_save} = $cf::RUNTIME;
		2062	$self->last_access ($cf::RUNTIME);
		2063
1397	$self->in_memory (cf::MAP_IN_MEMORY);	2064	$self->in_memory (cf::MAP_ACTIVE);
		2065	}
		2066
		2067	$self->post_load;
1398	}	2068	}
1399		2069
1400	sub customise_for {	2070	sub customise_for {
1401	my ($self, $ob) = @_;	2071	my ($self, $ob) = @_;
1402		2072
1403	return find "~" . $ob->name . "/" . $self->{path}	2073	return find "~" . $ob->name . "/" . $self->{path}
1404	if $self->per_player;	2074	if $self->per_player;
1405		2075
		2076	# return find "?party/" . $ob->name . "/" . $self->{path}
		2077	# if $self->per_party;
		2078
1406	$self	2079	$self
1407	}	2080	}
1408		2081
1409	# find and load all maps in the 3x3 area around a map	2082	# find and load all maps in the 3x3 area around a map
1410	sub load_diag {	2083	sub load_neighbours {
1411	my ($map) = @_;	2084	my ($map) = @_;
1412		2085
1413	my @diag; # diagonal neighbours	2086	my @neigh; # diagonal neighbours
1414		2087
1415	for (0 .. 3) {	2088	for (0 .. 3) {
1416	my $neigh = $map->tile_path ($_)	2089	my $neigh = $map->tile_path ($_)
1417	or next;	2090	or next;
1418	$neigh = find $neigh, $map	2091	$neigh = find $neigh, $map
1419	or next;	2092	or next;
1420	$neigh->load;	2093	$neigh->load;
1421		2094
		2095	push @neigh,
1422	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2096	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1423	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2097	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1424	}	2098	}
1425		2099
1426	for (@diag) {	2100	for (grep defined $_->[0], @neigh) {
		2101	my ($path, $origin) = @$_;
1427	my $neigh = find @$_	2102	my $neigh = find $path, $origin
1428	or next;	2103	or next;
1429	$neigh->load;	2104	$neigh->load;
1430	}	2105	}
1431	}	2106	}
1432		2107
…		…
1437	}	2112	}
1438		2113
1439	sub do_load_sync {	2114	sub do_load_sync {
1440	my ($map) = @_;	2115	my ($map) = @_;
1441		2116
		2117	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2118	if $Coro::current == $Coro::main;
		2119
1442	cf::sync_job { $map->load };	2120	cf::sync_job { $map->load };
1443	}	2121	}
1444		2122
1445	our %MAP_PREFETCH;	2123	our %MAP_PREFETCH;
1446	our $MAP_PREFETCHER = Coro::async {	2124	our $MAP_PREFETCHER = undef;
1447	while () {
1448	for my $path (keys %MAP_PREFETCH) {
1449	my $map = find $path
1450	or next;
1451	$map->load;
1452
1453	delete $MAP_PREFETCH{$path};
1454	}
1455	Coro::schedule;
1456	}
1457	};
1458		2125
1459	sub find_async {	2126	sub find_async {
1460	my ($path, $origin) = @_;	2127	my ($path, $origin, $load) = @_;
1461		2128
1462	$path = normalise $path, $origin && $origin->{path};	2129	$path = normalise $path, $origin && $origin->{path};
1463		2130
1464	if (my $map = $cf::MAP{$path}) {	2131	if (my $map = $cf::MAP{$path}) {
1465	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2132	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
		2133	}
		2134
		2135	$MAP_PREFETCH{$path} |= $load;
		2136
		2137	$MAP_PREFETCHER ||= cf::async {
		2138	$Coro::current->{desc} = "map prefetcher";
		2139
		2140	while (%MAP_PREFETCH) {
		2141	while (my ($k, $v) = each %MAP_PREFETCH) {
		2142	if (my $map = find $k) {
		2143	$map->load if $v;
		2144	}
		2145
		2146	delete $MAP_PREFETCH{$k};
		2147	}
		2148	}
		2149	undef $MAP_PREFETCHER;
1466	}	2150	};
1467
1468	$MAP_PREFETCH{$path} = 0;
1469	$MAP_PREFETCHER->ready;	2151	$MAP_PREFETCHER->prio (6);
1470		2152
1471	()	2153	()
1472	}	2154	}
1473		2155
1474	sub save {	2156	sub save {
1475	my ($self) = @_;	2157	my ($self) = @_;
1476		2158
1477	my $lock = cf::lock_acquire "map_data:" . $self->path;	2159	my $lock = cf::lock_acquire "map_data:$self->{path}";
1478		2160
1479	$self->{last_save} = $cf::RUNTIME;	2161	$self->{last_save} = $cf::RUNTIME;
1480		2162
1481	return unless $self->dirty;	2163	return unless $self->dirty;
1482		2164
…		…
1488	return if $self->{deny_save};	2170	return if $self->{deny_save};
1489		2171
1490	local $self->{last_access} = $self->last_access;#d#	2172	local $self->{last_access} = $self->last_access;#d#
1491		2173
1492	cf::async {	2174	cf::async {
		2175	$Coro::current->{desc} = "map player save";
1493	$_->contr->save for $self->players;	2176	$_->contr->save for $self->players;
1494	};	2177	};
		2178
		2179	cf::get_slot 0.02;
1495		2180
1496	if ($uniq) {	2181	if ($uniq) {
1497	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2182	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1498	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2183	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1499	} else {	2184	} else {
…		…
1505	my ($self) = @_;	2190	my ($self) = @_;
1506		2191
1507	# save first because save cedes	2192	# save first because save cedes
1508	$self->save;	2193	$self->save;
1509		2194
1510	my $lock = cf::lock_acquire "map_data:" . $self->path;	2195	my $lock = cf::lock_acquire "map_data:$self->{path}";
1511		2196
1512	return if $self->players;	2197	return if $self->players;
1513	return if $self->in_memory != cf::MAP_IN_MEMORY;	2198	return if $self->in_memory != cf::MAP_ACTIVE;
1514	return if $self->{deny_save};	2199	return if $self->{deny_save};
1515		2200
		2201	$self->in_memory (cf::MAP_SWAPPED);
		2202
		2203	$self->deactivate;
		2204	$_->clear_links_to ($self) for values %cf::MAP;
1516	$self->clear;	2205	$self->clear;
1517	$self->in_memory (cf::MAP_SWAPPED);
1518	}	2206	}
1519		2207
1520	sub reset_at {	2208	sub reset_at {
1521	my ($self) = @_;	2209	my ($self) = @_;
1522		2210
1523	# TODO: safety, remove and allow resettable per-player maps	2211	# TODO: safety, remove and allow resettable per-player maps
1524	return 1e99 if $self->isa ("ext::map_per_player");#d#
1525	return 1e99 if $self->{deny_reset};	2212	return 1e99 if $self->{deny_reset};
1526		2213
1527	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2214	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1528	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2215	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1529		2216
…		…
1540	my ($self) = @_;	2227	my ($self) = @_;
1541		2228
1542	my $lock = cf::lock_acquire "map_data:$self->{path}";	2229	my $lock = cf::lock_acquire "map_data:$self->{path}";
1543		2230
1544	return if $self->players;	2231	return if $self->players;
1545	return if $self->isa ("ext::map_per_player");#d#
1546		2232
1547	warn "resetting map ", $self->path;#d#	2233	warn "resetting map ", $self->path;
		2234
		2235	$self->in_memory (cf::MAP_SWAPPED);
		2236
		2237	# need to save uniques path
		2238	unless ($self->{deny_save}) {
		2239	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2240
		2241	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2242	if $uniq;
		2243	}
1548		2244
1549	delete $cf::MAP{$self->path};	2245	delete $cf::MAP{$self->path};
1550		2246
1551	$self->in_memory (cf::MAP_SWAPPED);	2247	$self->deactivate;
		2248	$_->clear_links_to ($self) for values %cf::MAP;
1552	$self->clear;	2249	$self->clear;
1553
1554	$_->clear_links_to ($self) for values %cf::MAP;
1555		2250
1556	$self->unlink_save;	2251	$self->unlink_save;
1557	$self->destroy;	2252	$self->destroy;
1558	}	2253	}
1559		2254
1560	my $nuke_counter = "aaaa";	2255	my $nuke_counter = "aaaa";
1561		2256
1562	sub nuke {	2257	sub nuke {
1563	my ($self) = @_;	2258	my ($self) = @_;
1564		2259
		2260	{
		2261	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2262
1565	delete $cf::MAP{$self->path};	2263	delete $cf::MAP{$self->path};
1566		2264
1567	$self->unlink_save;	2265	$self->unlink_save;
1568		2266
1569	bless $self, "cf::map";	2267	bless $self, "cf::map";
1570	delete $self->{deny_reset};	2268	delete $self->{deny_reset};
1571	$self->{deny_save} = 1;	2269	$self->{deny_save} = 1;
1572	$self->reset_timeout (1);	2270	$self->reset_timeout (1);
1573	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2271	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1574		2272
1575	$cf::MAP{$self->path} = $self;	2273	$cf::MAP{$self->path} = $self;
		2274	}
1576		2275
1577	$self->reset; # polite request, might not happen	2276	$self->reset; # polite request, might not happen
		2277	}
		2278
		2279	=item $maps = cf::map::tmp_maps
		2280
		2281	Returns an arrayref with all map paths of currently instantiated and saved
		2282	maps. May block.
		2283
		2284	=cut
		2285
		2286	sub tmp_maps() {
		2287	[
		2288	map {
		2289	utf8::decode $_;
		2290	/\.map$/
		2291	? normalise $_
		2292	: ()
		2293	} @{ aio_readdir $TMPDIR or [] }
		2294	]
		2295	}
		2296
		2297	=item $maps = cf::map::random_maps
		2298
		2299	Returns an arrayref with all map paths of currently instantiated and saved
		2300	random maps. May block.
		2301
		2302	=cut
		2303
		2304	sub random_maps() {
		2305	[
		2306	map {
		2307	utf8::decode $_;
		2308	/\.map$/
		2309	? normalise "?random/$_"
		2310	: ()
		2311	} @{ aio_readdir $RANDOMDIR or [] }
		2312	]
1578	}	2313	}
1579		2314
1580	=item cf::map::unique_maps	2315	=item cf::map::unique_maps
1581		2316
1582	Returns an arrayref of paths of all shared maps that have	2317	Returns an arrayref of paths of all shared maps that have
1583	instantiated unique items. May block.	2318	instantiated unique items. May block.
1584		2319
1585	=cut	2320	=cut
1586		2321
1587	sub unique_maps() {	2322	sub unique_maps() {
1588	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2323	[
1589	or return;	2324	map {
1590
1591	my @paths;
1592
1593	for (@$files) {
1594	utf8::decode $_;	2325	utf8::decode $_;
1595	next if /\.pst$/;	2326	s/\.map$//; # TODO future compatibility hack
1596	next unless /^$PATH_SEP/o;	2327	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1597		2328	? ()
1598	s/\.map$//;	2329	: normalise $_
1599	push @paths, $_;	2330	} @{ aio_readdir $UNIQUEDIR or [] }
1600	}	2331	]
1601
1602	\@paths
1603	}	2332	}
1604
1605	package cf;
1606		2333
1607	=back	2334	=back
1608		2335
1609	=head3 cf::object	2336	=head3 cf::object
1610		2337
…		…
1614		2341
1615	=over 4	2342	=over 4
1616		2343
1617	=item $ob->inv_recursive	2344	=item $ob->inv_recursive
1618		2345
1619	Returns the inventory of the object _and_ their inventories, recursively.	2346	Returns the inventory of the object I<and> their inventories, recursively,
		2347	but I<not> the object itself.
1620		2348
1621	=cut	2349	=cut
1622		2350
1623	sub inv_recursive_;	2351	sub inv_recursive_;
1624	sub inv_recursive_ {	2352	sub inv_recursive_ {
…		…
1627		2355
1628	sub inv_recursive {	2356	sub inv_recursive {
1629	inv_recursive_ inv $_[0]	2357	inv_recursive_ inv $_[0]
1630	}	2358	}
1631		2359
		2360	=item $ref = $ob->ref
		2361
		2362	Creates and returns a persistent reference to an object that can be stored as a string.
		2363
		2364	=item $ob = cf::object::deref ($refstring)
		2365
		2366	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2367	even if the object actually exists. May block.
		2368
		2369	=cut
		2370
		2371	sub deref {
		2372	my ($ref) = @_;
		2373
		2374	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2375	my ($uuid, $name) = ($1, $2);
		2376	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2377	or return;
		2378	$pl->ob->uuid eq $uuid
		2379	or return;
		2380
		2381	$pl->ob
		2382	} else {
		2383	warn "$ref: cannot resolve object reference\n";
		2384	undef
		2385	}
		2386	}
		2387
1632	package cf;	2388	package cf;
1633		2389
1634	=back	2390	=back
1635		2391
1636	=head3 cf::object::player	2392	=head3 cf::object::player
…		…
1642	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2398	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1643	can be C<undef>. Does the right thing when the player is currently in a	2399	can be C<undef>. Does the right thing when the player is currently in a
1644	dialogue with the given NPC character.	2400	dialogue with the given NPC character.
1645		2401
1646	=cut	2402	=cut
		2403
		2404	our $SAY_CHANNEL = {
		2405	id => "say",
		2406	title => "Map",
		2407	reply => "say ",
		2408	tooltip => "Things said to and replied from npcs near you and other players on the same map only.",
		2409	};
		2410
		2411	our $CHAT_CHANNEL = {
		2412	id => "chat",
		2413	title => "Chat",
		2414	reply => "chat ",
		2415	tooltip => "Player chat and shouts, global to the server.",
		2416	};
1647		2417
1648	# rough implementation of a future "reply" method that works	2418	# rough implementation of a future "reply" method that works
1649	# with dialog boxes.	2419	# with dialog boxes.
1650	#TODO: the first argument must go, split into a $npc->reply_to ( method	2420	#TODO: the first argument must go, split into a $npc->reply_to ( method
1651	sub cf::object::player::reply($$$;$) {	2421	sub cf::object::player::reply($$$;$) {
…		…
1653		2423
1654	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2424	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1655		2425
1656	if ($self->{record_replies}) {	2426	if ($self->{record_replies}) {
1657	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2427	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2428
1658	} else {	2429	} else {
		2430	my $pl = $self->contr;
		2431
		2432	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2433	my $dialog = $pl->{npc_dialog};
		2434	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2435
		2436	} else {
1659	$msg = $npc->name . " says: $msg" if $npc;	2437	$msg = $npc->name . " says: $msg" if $npc;
1660	$self->message ($msg, $flags);	2438	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2439	}
1661	}	2440	}
		2441	}
		2442
		2443	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2444
		2445	=cut
		2446
		2447	sub cf::object::send_msg {
		2448	my $pl = shift->contr
		2449	or return;
		2450	$pl->send_msg (@_);
1662	}	2451	}
1663		2452
1664	=item $player_object->may ("access")	2453	=item $player_object->may ("access")
1665		2454
1666	Returns wether the given player is authorized to access resource "access"	2455	Returns wether the given player is authorized to access resource "access"
…		…
1679		2468
1680	=item $player_object->enter_link	2469	=item $player_object->enter_link
1681		2470
1682	Freezes the player and moves him/her to a special map (C<{link}>).	2471	Freezes the player and moves him/her to a special map (C<{link}>).
1683		2472
1684	The player should be reasonably safe there for short amounts of time. You	2473	The player should be reasonably safe there for short amounts of time (e.g.
1685	I<MUST> call C<leave_link> as soon as possible, though.	2474	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2475	though, as the palyer cannot control the character while it is on the link
		2476	map.
1686		2477
1687	Will never block.	2478	Will never block.
1688		2479
1689	=item $player_object->leave_link ($map, $x, $y)	2480	=item $player_object->leave_link ($map, $x, $y)
1690		2481
…		…
1698	=cut	2489	=cut
1699		2490
1700	sub link_map {	2491	sub link_map {
1701	unless ($LINK_MAP) {	2492	unless ($LINK_MAP) {
1702	$LINK_MAP = cf::map::find "{link}"	2493	$LINK_MAP = cf::map::find "{link}"
1703	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2494	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1704	$LINK_MAP->load;	2495	$LINK_MAP->load;
1705	}	2496	}
1706		2497
1707	$LINK_MAP	2498	$LINK_MAP
1708	}	2499	}
…		…
1713	$self->deactivate_recursive;	2504	$self->deactivate_recursive;
1714		2505
1715	return if UNIVERSAL::isa $self->map, "ext::map_link";	2506	return if UNIVERSAL::isa $self->map, "ext::map_link";
1716		2507
1717	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2508	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1718	if $self->map;	2509	if $self->map && $self->map->{path} ne "{link}";
1719		2510
1720	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2511	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1721	}	2512	}
1722		2513
1723	sub cf::object::player::leave_link {	2514	sub cf::object::player::leave_link {
1724	my ($self, $map, $x, $y) = @_;	2515	my ($self, $map, $x, $y) = @_;
		2516
		2517	return unless $self->contr->active;
1725		2518
1726	my $link_pos = delete $self->{_link_pos};	2519	my $link_pos = delete $self->{_link_pos};
1727		2520
1728	unless ($map) {	2521	unless ($map) {
1729	# restore original map position	2522	# restore original map position
…		…
1743	# use -1 or undef as default coordinates, not 0, 0	2536	# use -1 or undef as default coordinates, not 0, 0
1744	($x, $y) = ($map->enter_x, $map->enter_y)	2537	($x, $y) = ($map->enter_x, $map->enter_y)
1745	if $x <=0 && $y <= 0;	2538	if $x <=0 && $y <= 0;
1746		2539
1747	$map->load;	2540	$map->load;
1748	$map->load_diag;	2541	$map->load_neighbours;
1749		2542
1750	return unless $self->contr->active;	2543	return unless $self->contr->active;
		2544	$self->flag (cf::FLAG_DEBUG, 0);#d# temp
1751	$self->activate_recursive;	2545	$self->activate_recursive;
		2546
		2547	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1752	$self->enter_map ($map, $x, $y);	2548	$self->enter_map ($map, $x, $y);
1753	}	2549	}
1754		2550
1755	cf::player->attach (	2551	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1756	on_logout => sub {
1757	my ($pl) = @_;
1758		2552
1759	# abort map switching before logout	2553	Moves the player to the given map-path and coordinates by first freezing
1760	if ($pl->ob->{_link_pos}) {	2554	her, loading and preparing them map, calling the provided $check callback
1761	cf::sync_job {	2555	that has to return the map if sucecssful, and then unfreezes the player on
1762	$pl->ob->leave_link	2556	the new (success) or old (failed) map position. In either case, $done will
1763	};	2557	be called at the end of this process.
1764	}
1765	},
1766	on_login => sub {
1767	my ($pl) = @_;
1768		2558
1769	# try to abort aborted map switching on player login :)	2559	Note that $check will be called with a potentially non-loaded map, so if
1770	# should happen only on crashes	2560	it needs a loaded map it has to call C<< ->load >>.
1771	if ($pl->ob->{_link_pos}) {
1772	$pl->ob->enter_link;
1773	(async {
1774	# we need this sleep as the login has a concurrent enter_exit running
1775	# and this sleep increases chances of the player not ending up in scorn
1776	$pl->ob->reply (undef,
1777	"There was an internal problem at your last logout, "
1778	. "the server will try to bring you to your intended destination in a second.",
1779	cf::NDI_RED);
1780	Coro::Timer::sleep 1;
1781	$pl->ob->leave_link;
1782	})->prio (2);
1783	}
1784	},
1785	);
1786		2561
1787	=item $player_object->goto ($path, $x, $y)
1788
1789	=cut	2562	=cut
		2563
		2564	our $GOTOGEN;
1790		2565
1791	sub cf::object::player::goto {	2566	sub cf::object::player::goto {
1792	my ($self, $path, $x, $y) = @_;	2567	my ($self, $path, $x, $y, $check, $done) = @_;
		2568
		2569	# do generation counting so two concurrent goto's will be executed in-order
		2570	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1793		2571
1794	$self->enter_link;	2572	$self->enter_link;
1795		2573
1796	(async {	2574	(async {
1797	my $map = cf::map::find $path;	2575	$Coro::current->{desc} = "player::goto $path $x $y";
		2576
		2577	# *tag paths override both path and x|y
		2578	if ($path =~ /^\*(.*)$/) {
		2579	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2580	my $ob = $obs[rand @obs];
		2581
		2582	# see if we actually can go there
		2583	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2584	$ob = $obs[rand @obs];
		2585	} else {
		2586	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2587	}
		2588	# else put us there anyways for now #d#
		2589
		2590	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2591	} else {
		2592	($path, $x, $y) = (undef, undef, undef);
		2593	}
		2594	}
		2595
		2596	my $map = eval {
		2597	my $map = defined $path ? cf::map::find $path : undef;
		2598
		2599	if ($map) {
1798	$map = $map->customise_for ($self) if $map;	2600	$map = $map->customise_for ($self);
1799		2601	$map = $check->($map) if $check && $map;
1800	# warn "entering ", $map->path, " at ($x, $y)\n"	2602	} else {
1801	# if $map;
1802
1803	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2603	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2604	}
1804		2605
		2606	$map
		2607	};
		2608
		2609	if ($@) {
		2610	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2611	LOG llevError | logBacktrace, Carp::longmess $@;
		2612	}
		2613
		2614	if ($gen == $self->{_goto_generation}) {
		2615	delete $self->{_goto_generation};
1805	$self->leave_link ($map, $x, $y);	2616	$self->leave_link ($map, $x, $y);
		2617	}
		2618
		2619	$done->() if $done;
1806	})->prio (1);	2620	})->prio (1);
1807	}	2621	}
1808		2622
1809	=item $player_object->enter_exit ($exit_object)	2623	=item $player_object->enter_exit ($exit_object)
1810		2624
…		…
1812		2626
1813	sub parse_random_map_params {	2627	sub parse_random_map_params {
1814	my ($spec) = @_;	2628	my ($spec) = @_;
1815		2629
1816	my $rmp = { # defaults	2630	my $rmp = { # defaults
1817	xsize => -1,	2631	xsize => (cf::rndm 15, 40),
1818	ysize => -1,	2632	ysize => (cf::rndm 15, 40),
		2633	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2634	#layout => string,
1819	};	2635	};
1820		2636
1821	for (split /\n/, $spec) {	2637	for (split /\n/, $spec) {
1822	my ($k, $v) = split /\s+/, $_, 2;	2638	my ($k, $v) = split /\s+/, $_, 2;
1823		2639
…		…
1835	# that depends on the exit object	2651	# that depends on the exit object
1836		2652
1837	my $rmp = parse_random_map_params $exit->msg;	2653	my $rmp = parse_random_map_params $exit->msg;
1838		2654
1839	if ($exit->map) {	2655	if ($exit->map) {
1840	$rmp->{region} = $exit->map->region_name;	2656	$rmp->{region} = $exit->region->name;
1841	$rmp->{origin_map} = $exit->map->path;	2657	$rmp->{origin_map} = $exit->map->path;
1842	$rmp->{origin_x} = $exit->x;	2658	$rmp->{origin_x} = $exit->x;
1843	$rmp->{origin_y} = $exit->y;	2659	$rmp->{origin_y} = $exit->y;
		2660
		2661	$exit->map->touch;
1844	}	2662	}
1845		2663
1846	$rmp->{random_seed} ||= $exit->random_seed;	2664	$rmp->{random_seed} ||= $exit->random_seed;
1847		2665
1848	my $data = cf::to_json $rmp;	2666	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1849	my $md5 = Digest::MD5::md5_hex $data;	2667	my $md5 = Digest::MD5::md5_hex $data;
1850	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2668	my $meta = "$RANDOMDIR/$md5.meta";
1851		2669
1852	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2670	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1853	aio_write $fh, 0, (length $data), $data, 0;	2671	aio_write $fh, 0, (length $data), $data, 0;
1854	undef $fh;	2672	undef $fh;
1855	aio_rename "$meta~", $meta;	2673	aio_rename "$meta~", $meta;
1856		2674
		2675	my $slaying = "?random/$md5";
		2676
		2677	if ($exit->valid) {
1857	$exit->slaying ("?random/$md5");	2678	$exit->slaying ("?random/$md5");
1858	$exit->msg (undef);	2679	$exit->msg (undef);
		2680	}
1859	}	2681	}
1860	}	2682	}
1861		2683
1862	sub cf::object::player::enter_exit {	2684	sub cf::object::player::enter_exit {
1863	my ($self, $exit) = @_;	2685	my ($self, $exit) = @_;
…		…
1865	return unless $self->type == cf::PLAYER;	2687	return unless $self->type == cf::PLAYER;
1866		2688
1867	$self->enter_link;	2689	$self->enter_link;
1868		2690
1869	(async {	2691	(async {
1870	$self->deactivate_recursive; # just to be sure	2692	$Coro::current->{desc} = "enter_exit";
		2693
1871	unless (eval {	2694	unless (eval {
		2695	$self->deactivate_recursive; # just to be sure
		2696
		2697	# random map handling
		2698	{
		2699	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2700
1872	prepare_random_map $exit	2701	prepare_random_map $exit
1873	if $exit->slaying eq "/!";	2702	if $exit->slaying eq "/!";
		2703	}
1874		2704
1875	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;	2705	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1876	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2706	my $x = $exit->stats->hp;
		2707	my $y = $exit->stats->sp;
1877		2708
		2709	$self->goto ($map, $x, $y);
		2710
		2711	# if exit is damned, update players death & WoR home-position
		2712	$self->contr->savebed ($map, $x, $y)
		2713	if $exit->flag (cf::FLAG_DAMNED);
		2714
1878	1;	2715	1
1879	}) {	2716	}) {
1880	$self->message ("Something went wrong deep within the crossfire server. "	2717	$self->message ("Something went wrong deep within the deliantra server. "
1881	. "I'll try to bring you back to the map you were before. "	2718	. "I'll try to bring you back to the map you were before. "
1882	. "Please report this to the dungeon master!",	2719	. "Please report this to the dungeon master!",
1883	cf::NDI_UNIQUE | cf::NDI_RED);	2720	cf::NDI_UNIQUE | cf::NDI_RED);
1884		2721
1885	warn "ERROR in enter_exit: $@";	2722	warn "ERROR in enter_exit: $@";
1886	$self->leave_link;	2723	$self->leave_link;
1887	}	2724	}
1888	})->prio (1);	2725	})->prio (1);
…		…
1901		2738
1902	sub cf::client::send_drawinfo {	2739	sub cf::client::send_drawinfo {
1903	my ($self, $text, $flags) = @_;	2740	my ($self, $text, $flags) = @_;
1904		2741
1905	utf8::encode $text;	2742	utf8::encode $text;
1906	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2743	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1907	}	2744	}
1908		2745
		2746	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2747
		2748	Send a drawinfo or msg packet to the client, formatting the msg for the
		2749	client if neccessary. C<$type> should be a string identifying the type of
		2750	the message, with C<log> being the default. If C<$color> is negative, suppress
		2751	the message unless the client supports the msg packet.
		2752
		2753	=cut
		2754
		2755	# non-persistent channels (usually the info channel)
		2756	our %CHANNEL = (
		2757	"c/identify" => {
		2758	id => "infobox",
		2759	title => "Identify",
		2760	reply => undef,
		2761	tooltip => "Items recently identified",
		2762	},
		2763	"c/examine" => {
		2764	id => "infobox",
		2765	title => "Examine",
		2766	reply => undef,
		2767	tooltip => "Signs and other items you examined",
		2768	},
		2769	"c/book" => {
		2770	id => "infobox",
		2771	title => "Book",
		2772	reply => undef,
		2773	tooltip => "The contents of a note or book",
		2774	},
		2775	"c/lookat" => {
		2776	id => "infobox",
		2777	title => "Look",
		2778	reply => undef,
		2779	tooltip => "What you saw there",
		2780	},
		2781	"c/who" => {
		2782	id => "infobox",
		2783	title => "Players",
		2784	reply => undef,
		2785	tooltip => "Shows players who are currently online",
		2786	},
		2787	"c/body" => {
		2788	id => "infobox",
		2789	title => "Body Parts",
		2790	reply => undef,
		2791	tooltip => "Shows which body parts you posess and are available",
		2792	},
		2793	"c/skills" => {
		2794	id => "infobox",
		2795	title => "Skills",
		2796	reply => undef,
		2797	tooltip => "Shows your experience per skill and item power",
		2798	},
		2799	"c/uptime" => {
		2800	id => "infobox",
		2801	title => "Uptime",
		2802	reply => undef,
		2803	tooltip => "How long the server has been running since last restart",
		2804	},
		2805	"c/mapinfo" => {
		2806	id => "infobox",
		2807	title => "Map Info",
		2808	reply => undef,
		2809	tooltip => "Information related to the maps",
		2810	},
		2811	"c/party" => {
		2812	id => "party",
		2813	title => "Party",
		2814	reply => "gsay ",
		2815	tooltip => "Messages and chat related to your party",
		2816	},
		2817	);
		2818
		2819	sub cf::client::send_msg {
		2820	my ($self, $channel, $msg, $color, @extra) = @_;
		2821
		2822	$msg = $self->pl->expand_cfpod ($msg)
		2823	unless $color & cf::NDI_VERBATIM;
		2824
		2825	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2826
		2827	# check predefined channels, for the benefit of C
		2828	if ($CHANNEL{$channel}) {
		2829	$channel = $CHANNEL{$channel};
		2830
		2831	$self->ext_msg (channel_info => $channel)
		2832	if $self->can_msg;
		2833
		2834	$channel = $channel->{id};
		2835
		2836	} elsif (ref $channel) {
		2837	# send meta info to client, if not yet sent
		2838	unless (exists $self->{channel}{$channel->{id}}) {
		2839	$self->{channel}{$channel->{id}} = $channel;
		2840	$self->ext_msg (channel_info => $channel)
		2841	if $self->can_msg;
		2842	}
		2843
		2844	$channel = $channel->{id};
		2845	}
		2846
		2847	return unless @extra || length $msg;
		2848
		2849	if ($self->can_msg) {
		2850	# default colour, mask it out
		2851	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2852	if $color & cf::NDI_DEF;
		2853
		2854	my $pkt = "msg "
		2855	. $self->{json_coder}->encode (
		2856	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2857	);
		2858
		2859	# try lzf for large packets
		2860	$pkt = "lzf " . Compress::LZF::compress $pkt
		2861	if 1024 <= length $pkt and $self->{can_lzf};
		2862
		2863	# split very large packets
		2864	if (8192 < length $pkt and $self->{can_lzf}) {
		2865	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2866	$pkt = "frag";
		2867	}
		2868
		2869	$self->send_packet ($pkt);
		2870	} else {
		2871	if ($color >= 0) {
		2872	# replace some tags by gcfclient-compatible ones
		2873	for ($msg) {
		2874	1 while
		2875	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2876	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2877	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2878	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2879	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2880	}
		2881
		2882	$color &= cf::NDI_COLOR_MASK;
		2883
		2884	utf8::encode $msg;
		2885
		2886	if (0 && $msg =~ /\[/) {
		2887	# COMMAND/INFO
		2888	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2889	} else {
		2890	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2891	$self->send_packet ("drawinfo $color $msg")
		2892	}
		2893	}
		2894	}
		2895	}
		2896
		2897	=item $client->ext_msg ($type, @msg)
		2898
		2899	Sends an ext event to the client.
		2900
		2901	=cut
		2902
		2903	sub cf::client::ext_msg($$@) {
		2904	my ($self, $type, @msg) = @_;
		2905
		2906	if ($self->extcmd == 2) {
		2907	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2908	} elsif ($self->extcmd == 1) { # TODO: remove
		2909	push @msg, msgtype => "event_$type";
		2910	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2911	}
		2912	}
		2913
		2914	=item $client->ext_reply ($msgid, @msg)
		2915
		2916	Sends an ext reply to the client.
		2917
		2918	=cut
		2919
		2920	sub cf::client::ext_reply($$@) {
		2921	my ($self, $id, @msg) = @_;
		2922
		2923	if ($self->extcmd == 2) {
		2924	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2925	} elsif ($self->extcmd == 1) {
		2926	#TODO: version 1, remove
		2927	unshift @msg, msgtype => "reply", msgid => $id;
		2928	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2929	}
		2930	}
1909		2931
1910	=item $success = $client->query ($flags, "text", \&cb)	2932	=item $success = $client->query ($flags, "text", \&cb)
1911		2933
1912	Queues a query to the client, calling the given callback with	2934	Queues a query to the client, calling the given callback with
1913	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2935	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1914	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2936	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1915		2937
1916	Queries can fail, so check the return code. Or don't, as queries will become	2938	Queries can fail, so check the return code. Or don't, as queries will
1917	reliable at some point in the future.	2939	become reliable at some point in the future.
1918		2940
1919	=cut	2941	=cut
1920		2942
1921	sub cf::client::query {	2943	sub cf::client::query {
1922	my ($self, $flags, $text, $cb) = @_;	2944	my ($self, $flags, $text, $cb) = @_;
…		…
1930	utf8::encode $text;	2952	utf8::encode $text;
1931	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2953	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1932		2954
1933	$self->send_packet ($self->{query_queue}[0][0])	2955	$self->send_packet ($self->{query_queue}[0][0])
1934	if @{ $self->{query_queue} } == 1;	2956	if @{ $self->{query_queue} } == 1;
		2957
		2958	1
1935	}	2959	}
1936		2960
1937	cf::client->attach (	2961	cf::client->attach (
		2962	on_connect => sub {
		2963	my ($ns) = @_;
		2964
		2965	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2966	},
1938	on_reply => sub {	2967	on_reply => sub {
1939	my ($ns, $msg) = @_;	2968	my ($ns, $msg) = @_;
1940		2969
1941	# this weird shuffling is so that direct followup queries	2970	# this weird shuffling is so that direct followup queries
1942	# get handled first	2971	# get handled first
1943	my $queue = delete $ns->{query_queue}	2972	my $queue = delete $ns->{query_queue}
1944	or return; # be conservative, not sure how that can happen, but we saw a crash here	2973	or return; # be conservative, not sure how that can happen, but we saw a crash here
1945		2974
1946	(shift @$queue)->[1]->($msg);	2975	(shift @$queue)->[1]->($msg);
		2976	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1947		2977
1948	push @{ $ns->{query_queue} }, @$queue;	2978	push @{ $ns->{query_queue} }, @$queue;
1949		2979
1950	if (@{ $ns->{query_queue} } == @$queue) {	2980	if (@{ $ns->{query_queue} } == @$queue) {
1951	if (@$queue) {	2981	if (@$queue) {
…		…
1953	} else {	2983	} else {
1954	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2984	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1955	}	2985	}
1956	}	2986	}
1957	},	2987	},
		2988	on_exticmd => sub {
		2989	my ($ns, $buf) = @_;
		2990
		2991	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2992
		2993	if (ref $msg) {
		2994	my ($type, $reply, @payload) =
		2995	"ARRAY" eq ref $msg
		2996	? @$msg
		2997	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2998
		2999	my @reply;
		3000
		3001	if (my $cb = $EXTICMD{$type}) {
		3002	@reply = $cb->($ns, @payload);
		3003	}
		3004
		3005	$ns->ext_reply ($reply, @reply)
		3006	if $reply;
		3007
		3008	} else {
		3009	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3010	}
		3011
		3012	cf::override;
		3013	},
1958	);	3014	);
1959		3015
1960	=item $client->async (\&cb)	3016	=item $client->async (\&cb)
1961		3017
1962	Create a new coroutine, running the specified callback. The coroutine will	3018	Create a new coroutine, running the specified callback. The coroutine will
…		…
2003	our $safe = new Safe "safe";	3059	our $safe = new Safe "safe";
2004	our $safe_hole = new Safe::Hole;	3060	our $safe_hole = new Safe::Hole;
2005		3061
2006	$SIG{FPE} = 'IGNORE';	3062	$SIG{FPE} = 'IGNORE';
2007		3063
2008	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3064	$safe->permit_only (Opcode::opset qw(
		3065	:base_core :base_mem :base_orig :base_math
		3066	grepstart grepwhile mapstart mapwhile
		3067	sort time
		3068	));
2009		3069
2010	# here we export the classes and methods available to script code	3070	# here we export the classes and methods available to script code
2011		3071
2012	=pod	3072	=pod
2013		3073
2014	The following fucntions and emthods are available within a safe environment:	3074	The following functions and methods are available within a safe environment:
2015		3075
2016	cf::object contr pay_amount pay_player map	3076	cf::object
		3077	contr pay_amount pay_player map x y force_find force_add destroy
		3078	insert remove name archname title slaying race decrease split
		3079
2017	cf::object::player player	3080	cf::object::player
2018	cf::player peaceful	3081	player
2019	cf::map trigger	3082
		3083	cf::player
		3084	peaceful
		3085
		3086	cf::map
		3087	trigger
2020		3088
2021	=cut	3089	=cut
2022		3090
2023	for (	3091	for (
2024	["cf::object" => qw(contr pay_amount pay_player map)],	3092	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3093	insert remove inv nrof name archname title slaying race
		3094	decrease split destroy change_exp)],
2025	["cf::object::player" => qw(player)],	3095	["cf::object::player" => qw(player)],
2026	["cf::player" => qw(peaceful)],	3096	["cf::player" => qw(peaceful)],
2027	["cf::map" => qw(trigger)],	3097	["cf::map" => qw(trigger)],
2028	) {	3098	) {
2029	no strict 'refs';	3099	no strict 'refs';
…		…
2100	=back	3170	=back
2101		3171
2102	=cut	3172	=cut
2103		3173
2104	#############################################################################	3174	#############################################################################
		3175	# the server's init and main functions
2105		3176
2106	=head2 EXTENSION DATABASE SUPPORT	3177	sub load_facedata($) {
		3178	my ($path) = @_;
2107		3179
2108	Crossfire maintains a very simple database for extension use. It can	3180	# HACK to clear player env face cache, we need some signal framework
2109	currently store anything that can be serialised using Storable, which	3181	# for this (global event?)
2110	excludes objects.	3182	%ext::player_env::MUSIC_FACE_CACHE = ();
2111		3183
2112	The parameter C<$family> should best start with the name of the extension	3184	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2113	using it, it should be unique.
2114		3185
2115	=over 4	3186	warn "loading facedata from $path\n";
2116		3187
2117	=item $hashref = cf::db_get $family	3188	my $facedata;
		3189	0 < aio_load $path, $facedata
		3190	or die "$path: $!";
2118		3191
2119	Return a hashref for use by the extension C<$family>, which can be	3192	$facedata = Coro::Storable::thaw $facedata;
2120	modified. After modifications, you have to call C<cf::db_dirty> or
2121	C<cf::db_sync>.
2122		3193
2123	=item $value = cf::db_get $family => $key	3194	$facedata->{version} == 2
		3195	or cf::cleanup "$path: version mismatch, cannot proceed.";
2124		3196
2125	Returns a single value from the database	3197	# patch in the exptable
2126		3198	$facedata->{resource}{"res/exp_table"} = {
2127	=item cf::db_put $family => $hashref	3199	type => FT_RSRC,
2128		3200	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2129	Stores the given family hashref into the database. Updates are delayed, if
2130	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2131
2132	=item cf::db_put $family => $key => $value
2133
2134	Stores the given C<$value> in the family hash. Updates are delayed, if you
2135	want the data to be synced to disk immediately, use C<cf::db_sync>.
2136
2137	=item cf::db_dirty
2138
2139	Marks the database as dirty, to be updated at a later time.
2140
2141	=item cf::db_sync
2142
2143	Immediately write the database to disk I<if it is dirty>.
2144
2145	=cut
2146
2147	our $DB;
2148
2149	{
2150	my $path = cf::localdir . "/database.pst";
2151
2152	sub db_load() {
2153	$DB = stat $path ? Storable::retrieve $path : { };
2154	}
2155
2156	my $pid;
2157
2158	sub db_save() {
2159	waitpid $pid, 0 if $pid;
2160	if (0 == ($pid = fork)) {
2161	$DB->{_meta}{version} = 1;
2162	Storable::nstore $DB, "$path~";
2163	rename "$path~", $path;
2164	cf::_exit 0 if defined $pid;
2165	}
2166	}
2167
2168	my $dirty;
2169
2170	sub db_sync() {
2171	db_save if $dirty;
2172	undef $dirty;
2173	}
2174
2175	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2176	db_sync;
2177	});	3201	};
		3202	cf::cede_to_tick;
2178		3203
2179	sub db_dirty() {
2180	$dirty = 1;
2181	$idle->start;
2182	}	3204	{
		3205	my $faces = $facedata->{faceinfo};
2183		3206
2184	sub db_get($;$) {	3207	while (my ($face, $info) = each %$faces) {
2185	@_ >= 2	3208	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2186	? $DB->{$_[0]}{$_[1]}
2187	: ($DB->{$_[0]} ||= { })
2188	}
2189		3209
2190	sub db_put($$;$) {	3210	cf::face::set_visibility $idx, $info->{visibility};
2191	if (@_ >= 3) {	3211	cf::face::set_magicmap $idx, $info->{magicmap};
2192	$DB->{$_[0]}{$_[1]} = $_[2];	3212	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2193	} else {	3213	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2194	$DB->{$_[0]} = $_[1];
2195	}
2196	db_dirty;
2197	}
2198		3214
2199	cf::global->attach (	3215	cf::cede_to_tick;
2200	prio => 10000,
2201	on_cleanup => sub {
2202	db_sync;
2203	},	3216	}
2204	);
2205	}
2206		3217
2207	#############################################################################	3218	while (my ($face, $info) = each %$faces) {
2208	# the server's main()	3219	next unless $info->{smooth};
2209		3220
2210	sub cfg_load {	3221	my $idx = cf::face::find $face
		3222	or next;
		3223
		3224	if (my $smooth = cf::face::find $info->{smooth}) {
		3225	cf::face::set_smooth $idx, $smooth;
		3226	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3227	} else {
		3228	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3229	}
		3230
		3231	cf::cede_to_tick;
		3232	}
		3233	}
		3234
		3235	{
		3236	my $anims = $facedata->{animinfo};
		3237
		3238	while (my ($anim, $info) = each %$anims) {
		3239	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3240	cf::cede_to_tick;
		3241	}
		3242
		3243	cf::anim::invalidate_all; # d'oh
		3244	}
		3245
		3246	{
		3247	# TODO: for gcfclient pleasure, we should give resources
		3248	# that gcfclient doesn't grok a >10000 face index.
		3249	my $res = $facedata->{resource};
		3250
		3251	while (my ($name, $info) = each %$res) {
		3252	if (defined $info->{type}) {
		3253	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3254	my $data;
		3255
		3256	if ($info->{type} & 1) {
		3257	# prepend meta info
		3258
		3259	my $meta = $enc->encode ({
		3260	name => $name,
		3261	%{ $info->{meta} || {} },
		3262	});
		3263
		3264	$data = pack "(w/a*)*", $meta, $info->{data};
		3265	} else {
		3266	$data = $info->{data};
		3267	}
		3268
		3269	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3270	cf::face::set_type $idx, $info->{type};
		3271	} else {
		3272	$RESOURCE{$name} = $info;
		3273	}
		3274
		3275	cf::cede_to_tick;
		3276	}
		3277	}
		3278
		3279	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3280
		3281	1
		3282	}
		3283
		3284	cf::global->attach (on_resource_update => sub {
		3285	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3286	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3287
		3288	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3289	my $sound = $soundconf->{compat}[$_]
		3290	or next;
		3291
		3292	my $face = cf::face::find "sound/$sound->[1]";
		3293	cf::sound::set $sound->[0] => $face;
		3294	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3295	}
		3296
		3297	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3298	my $face = cf::face::find "sound/$v";
		3299	cf::sound::set $k => $face;
		3300	}
		3301	}
		3302	});
		3303
		3304	register_exticmd fx_want => sub {
		3305	my ($ns, $want) = @_;
		3306
		3307	while (my ($k, $v) = each %$want) {
		3308	$ns->fx_want ($k, $v);
		3309	}
		3310	};
		3311
		3312	sub load_resource_file($) {
		3313	my $guard = lock_acquire "load_resource_file";
		3314
		3315	my $status = load_resource_file_ $_[0];
		3316	get_slot 0.1, 100;
		3317	cf::arch::commit_load;
		3318
		3319	$status
		3320	}
		3321
		3322	sub reload_regions {
		3323	# HACK to clear player env face cache, we need some signal framework
		3324	# for this (global event?)
		3325	%ext::player_env::MUSIC_FACE_CACHE = ();
		3326
		3327	load_resource_file "$MAPDIR/regions"
		3328	or die "unable to load regions file\n";
		3329
		3330	for (cf::region::list) {
		3331	$_->{match} = qr/$_->{match}/
		3332	if exists $_->{match};
		3333	}
		3334	}
		3335
		3336	sub reload_facedata {
		3337	load_facedata "$DATADIR/facedata"
		3338	or die "unable to load facedata\n";
		3339	}
		3340
		3341	sub reload_archetypes {
		3342	load_resource_file "$DATADIR/archetypes"
		3343	or die "unable to load archetypes\n";
		3344	}
		3345
		3346	sub reload_treasures {
		3347	load_resource_file "$DATADIR/treasures"
		3348	or die "unable to load treasurelists\n";
		3349	}
		3350
		3351	sub reload_resources {
		3352	warn "reloading resource files...\n";
		3353
		3354	reload_facedata;
		3355	reload_archetypes;
		3356	reload_regions;
		3357	reload_treasures;
		3358
		3359	warn "finished reloading resource files\n";
		3360	}
		3361
		3362	sub reload_config {
2211	open my $fh, "<:utf8", cf::confdir . "/config"	3363	open my $fh, "<:utf8", "$CONFDIR/config"
2212	or return;	3364	or return;
2213		3365
2214	local $/;	3366	local $/;
2215	*CFG = YAML::Syck::Load <$fh>;	3367	*CFG = YAML::Load <$fh>;
2216		3368
2217	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3369	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2218		3370
2219	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3371	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2220	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3372	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2226	};	3378	};
2227	warn $@ if $@;	3379	warn $@ if $@;
2228	}	3380	}
2229	}	3381	}
2230		3382
		3383	sub pidfile() {
		3384	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3385	or die "$PIDFILE: $!";
		3386	flock $fh, &Fcntl::LOCK_EX
		3387	or die "$PIDFILE: flock: $!";
		3388	$fh
		3389	}
		3390
		3391	# make sure only one server instance is running at any one time
		3392	sub atomic {
		3393	my $fh = pidfile;
		3394
		3395	my $pid = <$fh>;
		3396	kill 9, $pid if $pid > 0;
		3397
		3398	seek $fh, 0, 0;
		3399	print $fh $$;
		3400	}
		3401
2231	sub main {	3402	sub main {
		3403	cf::init_globals; # initialise logging
		3404
		3405	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3406	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3407	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3408	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3409
		3410	cf::init_experience;
		3411	cf::init_anim;
		3412	cf::init_attackmess;
		3413	cf::init_dynamic;
		3414	cf::init_block;
		3415
		3416	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3417
2232	# we must not ever block the main coroutine	3418	# we must not ever block the main coroutine
2233	local $Coro::idle = sub {	3419	local $Coro::idle = sub {
2234	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3420	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2235	(async {	3421	(async {
2236	Event::one_event;	3422	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3423	EV::loop EV::LOOP_ONESHOT;
2237	})->prio (Coro::PRIO_MAX);	3424	})->prio (Coro::PRIO_MAX);
2238	};	3425	};
2239		3426
2240	cfg_load;	3427	evthread_start IO::AIO::poll_fileno;
2241	db_load;	3428
		3429	cf::sync_job {
		3430	reload_resources;
		3431	reload_config;
		3432	db_init;
		3433
		3434	cf::load_settings;
		3435	cf::load_materials;
		3436	cf::init_uuid;
		3437	cf::init_signals;
		3438	cf::init_commands;
		3439	cf::init_skills;
		3440
		3441	cf::init_beforeplay;
		3442
		3443	atomic;
		3444
2242	load_extensions;	3445	load_extensions;
		3446
		3447	utime time, time, $RUNTIMEFILE;
		3448
		3449	# no (long-running) fork's whatsoever before this point(!)
		3450	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3451
		3452	(pop @POST_INIT)->(0) while @POST_INIT;
		3453	};
		3454
2243	Event::loop;	3455	EV::loop;
2244	}	3456	}
2245		3457
2246	#############################################################################	3458	#############################################################################
2247	# initialisation and cleanup	3459	# initialisation and cleanup
2248		3460
2249	# install some emergency cleanup handlers	3461	# install some emergency cleanup handlers
2250	BEGIN {	3462	BEGIN {
		3463	our %SIGWATCHER = ();
2251	for my $signal (qw(INT HUP TERM)) {	3464	for my $signal (qw(INT HUP TERM)) {
2252	Event->signal (	3465	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2253	data => WF_AUTOCANCEL,
2254	signal => $signal,
2255	cb => sub {
2256	cf::cleanup "SIG$signal";	3466	cf::cleanup "SIG$signal";
2257	},
2258	);	3467	};
		3468	}
		3469	}
		3470
		3471	sub write_runtime_sync {
		3472	# first touch the runtime file to show we are still running:
		3473	# the fsync below can take a very very long time.
		3474
		3475	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3476
		3477	my $guard = cf::lock_acquire "write_runtime";
		3478
		3479	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3480	or return;
		3481
		3482	my $value = $cf::RUNTIME + 90 + 10;
		3483	# 10 is the runtime save interval, for a monotonic clock
		3484	# 60 allows for the watchdog to kill the server.
		3485
		3486	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3487	and return;
		3488
		3489	# always fsync - this file is important
		3490	aio_fsync $fh
		3491	and return;
		3492
		3493	# touch it again to show we are up-to-date
		3494	aio_utime $fh, undef, undef;
		3495
		3496	close $fh
		3497	or return;
		3498
		3499	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3500	and return;
		3501
		3502	warn "runtime file written.\n";
		3503
2259	}	3504	1
		3505	}
		3506
		3507	our $uuid_lock;
		3508	our $uuid_skip;
		3509
		3510	sub write_uuid_sync($) {
		3511	$uuid_skip ||= $_[0];
		3512
		3513	return if $uuid_lock;
		3514	local $uuid_lock = 1;
		3515
		3516	my $uuid = "$LOCALDIR/uuid";
		3517
		3518	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3519	or return;
		3520
		3521	my $value = uuid_str $uuid_skip + uuid_seq uuid_cur;
		3522	$uuid_skip = 0;
		3523
		3524	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3525	and return;
		3526
		3527	# always fsync - this file is important
		3528	aio_fsync $fh
		3529	and return;
		3530
		3531	close $fh
		3532	or return;
		3533
		3534	aio_rename "$uuid~", $uuid
		3535	and return;
		3536
		3537	warn "uuid file written ($value).\n";
		3538
		3539	1
		3540
		3541	}
		3542
		3543	sub write_uuid($$) {
		3544	my ($skip, $sync) = @_;
		3545
		3546	$sync ? write_uuid_sync $skip
		3547	: async { write_uuid_sync $skip };
2260	}	3548	}
2261		3549
2262	sub emergency_save() {	3550	sub emergency_save() {
2263	my $freeze_guard = cf::freeze_mainloop;	3551	my $freeze_guard = cf::freeze_mainloop;
2264		3552
…		…
2270	# and maps saved/destroyed asynchronously.	3558	# and maps saved/destroyed asynchronously.
2271	warn "begin emergency player save\n";	3559	warn "begin emergency player save\n";
2272	for my $login (keys %cf::PLAYER) {	3560	for my $login (keys %cf::PLAYER) {
2273	my $pl = $cf::PLAYER{$login} or next;	3561	my $pl = $cf::PLAYER{$login} or next;
2274	$pl->valid or next;	3562	$pl->valid or next;
		3563	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2275	$pl->save;	3564	$pl->save;
2276	}	3565	}
2277	warn "end emergency player save\n";	3566	warn "end emergency player save\n";
2278		3567
2279	warn "begin emergency map save\n";	3568	warn "begin emergency map save\n";
…		…
2281	my $map = $cf::MAP{$path} or next;	3570	my $map = $cf::MAP{$path} or next;
2282	$map->valid or next;	3571	$map->valid or next;
2283	$map->save;	3572	$map->save;
2284	}	3573	}
2285	warn "end emergency map save\n";	3574	warn "end emergency map save\n";
		3575
		3576	warn "begin emergency database checkpoint\n";
		3577	BDB::db_env_txn_checkpoint $DB_ENV;
		3578	warn "end emergency database checkpoint\n";
		3579
		3580	warn "begin write uuid\n";
		3581	write_uuid_sync 1;
		3582	warn "end write uuid\n";
2286	};	3583	};
2287		3584
2288	warn "leave emergency perl save\n";	3585	warn "leave emergency perl save\n";
2289	}	3586	}
2290		3587
		3588	sub post_cleanup {
		3589	my ($make_core) = @_;
		3590
		3591	warn Carp::longmess "post_cleanup backtrace"
		3592	if $make_core;
		3593
		3594	my $fh = pidfile;
		3595	unlink $PIDFILE if <$fh> == $$;
		3596	}
		3597
		3598	# a safer delete_package, copied from Symbol
		3599	sub clear_package($) {
		3600	my $pkg = shift;
		3601
		3602	# expand to full symbol table name if needed
		3603	unless ($pkg =~ /^main::.*::$/) {
		3604	$pkg = "main$pkg" if $pkg =~ /^::/;
		3605	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3606	$pkg .= '::' unless $pkg =~ /::$/;
		3607	}
		3608
		3609	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3610	my $stem_symtab = *{$stem}{HASH};
		3611
		3612	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3613	or return;
		3614
		3615	# clear all symbols
		3616	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3617	for my $name (keys %$leaf_symtab) {
		3618	_gv_clear *{"$pkg$name"};
		3619	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3620	}
		3621	warn "cleared package $pkg\n";#d#
		3622	}
		3623
2291	sub reload() {	3624	sub do_reload_perl() {
2292	# can/must only be called in main	3625	# can/must only be called in main
2293	if ($Coro::current != $Coro::main) {	3626	if ($Coro::current != $Coro::main) {
2294	warn "can only reload from main coroutine\n";	3627	warn "can only reload from main coroutine";
2295	return;	3628	return;
2296	}	3629	}
2297		3630
		3631	return if $RELOAD++;
		3632
		3633	while ($RELOAD) {
2298	warn "reloading...";	3634	warn "reloading...";
2299		3635
2300	warn "freezing server";	3636	warn "entering sync_job";
2301	my $guard = freeze_mainloop;	3637
		3638	cf::sync_job {
		3639	cf::write_runtime_sync; # external watchdog should not bark
2302	cf::emergency_save;	3640	cf::emergency_save;
		3641	cf::write_runtime_sync; # external watchdog should not bark
2303		3642
2304	warn "sync database to disk";	3643	warn "syncing database to disk";
2305	cf::db_sync;	3644	BDB::db_env_txn_checkpoint $DB_ENV;
2306	IO::AIO::flush;
2307		3645
2308	eval {
2309	# if anything goes wrong in here, we should simply crash as we already saved	3646	# if anything goes wrong in here, we should simply crash as we already saved
2310		3647
2311	warn "cancel all watchers";	3648	warn "flushing outstanding aio requests";
2312	for (Event::all_watchers) {	3649	while (IO::AIO::nreqs || BDB::nreqs) {
2313	$_->cancel if $_->data & WF_AUTOCANCEL;	3650	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2314	}
2315
2316	warn "cancel all extension coros";
2317	$_->cancel for values %EXT_CORO;
2318	%EXT_CORO = ();
2319
2320	warn "remove commands";
2321	%COMMAND = ();
2322
2323	warn "remove ext commands";
2324	%EXTCMD = ();
2325
2326	warn "unload/nuke all extensions";
2327	for my $pkg (@EXTS) {
2328	warn "... unloading $pkg";
2329
2330	if (my $cb = $pkg->can ("unload")) {
2331	eval {
2332	$cb->($pkg);
2333	1
2334	} or warn "$pkg unloaded, but with errors: $@";
2335	}	3651	}
2336		3652
		3653	warn "cancelling all extension coros";
		3654	$_->cancel for values %EXT_CORO;
		3655	%EXT_CORO = ();
		3656
		3657	warn "removing commands";
		3658	%COMMAND = ();
		3659
		3660	warn "removing ext/exti commands";
		3661	%EXTCMD = ();
		3662	%EXTICMD = ();
		3663
		3664	warn "unloading/nuking all extensions";
		3665	for my $pkg (@EXTS) {
2337	warn "... nuking $pkg";	3666	warn "... unloading $pkg";
2338	Symbol::delete_package $pkg;
2339	}
2340		3667
2341	warn "unload all perl modules loaded from $LIBDIR";
2342	while (my ($k, $v) = each %INC) {
2343	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2344
2345	warn "removing <$k>";
2346	delete $INC{$k};
2347
2348	$k =~ s/\.pm$//;
2349	$k =~ s/\//::/g;
2350
2351	if (my $cb = $k->can ("unload_module")) {	3668	if (my $cb = $pkg->can ("unload")) {
		3669	eval {
2352	$cb->();	3670	$cb->($pkg);
		3671	1
		3672	} or warn "$pkg unloaded, but with errors: $@";
		3673	}
		3674
		3675	warn "... clearing $pkg";
		3676	clear_package $pkg;
2353	}	3677	}
2354		3678
2355	Symbol::delete_package $k;	3679	warn "unloading all perl modules loaded from $LIBDIR";
		3680	while (my ($k, $v) = each %INC) {
		3681	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3682
		3683	warn "... unloading $k";
		3684	delete $INC{$k};
		3685
		3686	$k =~ s/\.pm$//;
		3687	$k =~ s/\//::/g;
		3688
		3689	if (my $cb = $k->can ("unload_module")) {
		3690	$cb->();
		3691	}
		3692
		3693	clear_package $k;
2356	}	3694	}
2357		3695
2358	warn "get rid of safe::, as good as possible";	3696	warn "getting rid of safe::, as good as possible";
2359	Symbol::delete_package "safe::$_"	3697	clear_package "safe::$_"
2360	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3698	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2361		3699
2362	warn "unload cf.pm \"a bit\"";	3700	warn "unloading cf.pm \"a bit\"";
2363	delete $INC{"cf.pm"};	3701	delete $INC{"cf.pm"};
		3702	delete $INC{"cf/pod.pm"};
2364		3703
2365	# don't, removes xs symbols, too,	3704	# don't, removes xs symbols, too,
2366	# and global variables created in xs	3705	# and global variables created in xs
2367	#Symbol::delete_package __PACKAGE__;	3706	#clear_package __PACKAGE__;
2368		3707
		3708	warn "unload completed, starting to reload now";
		3709
2369	warn "reloading cf.pm";	3710	warn "reloading cf.pm";
2370	require cf;	3711	require cf;
2371	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3712	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2372		3713
2373	warn "load config and database again";	3714	warn "loading config and database again";
2374	cf::cfg_load;	3715	cf::reload_config;
2375	cf::db_load;
2376		3716
2377	warn "load extensions";	3717	warn "loading extensions";
2378	cf::load_extensions;	3718	cf::load_extensions;
2379		3719
2380	warn "reattach attachments to objects/players";	3720	warn "reattaching attachments to objects/players";
2381	_global_reattach;	3721	_global_reattach; # objects, sockets
2382	warn "reattach attachments to maps";	3722	warn "reattaching attachments to maps";
2383	reattach $_ for values %MAP;	3723	reattach $_ for values %MAP;
		3724	warn "reattaching attachments to players";
		3725	reattach $_ for values %PLAYER;
		3726
		3727	warn "running post_load";
		3728	(pop @POST_INIT)->(1) while @POST_INIT;
		3729
		3730	warn "leaving sync_job";
		3731
		3732	1
		3733	} or do {
		3734	warn $@;
		3735	cf::cleanup "error while reloading, exiting.";
		3736	};
		3737
		3738	warn "reloaded";
		3739	--$RELOAD;
		3740	}
		3741	};
		3742
		3743	our $RELOAD_WATCHER; # used only during reload
		3744
		3745	sub reload_perl() {
		3746	# doing reload synchronously and two reloads happen back-to-back,
		3747	# coro crashes during coro_state_free->destroy here.
		3748
		3749	$RELOAD_WATCHER ||= EV::timer $TICK * 1.5, 0, sub {
		3750	do_reload_perl;
		3751	undef $RELOAD_WATCHER;
2384	};	3752	};
2385		3753	}
2386	if ($@) {
2387	warn $@;
2388	warn "error while reloading, exiting.";
2389	exit 1;
2390	}
2391
2392	warn "reloaded";
2393	};
2394
2395	our $RELOAD_WATCHER; # used only during reload
2396		3754
2397	register_command "reload" => sub {	3755	register_command "reload" => sub {
2398	my ($who, $arg) = @_;	3756	my ($who, $arg) = @_;
2399		3757
2400	if ($who->flag (FLAG_WIZ)) {	3758	if ($who->flag (FLAG_WIZ)) {
2401	$who->message ("reloading server.");	3759	$who->message ("reloading server.");
2402		3760	async {
2403	# doing reload synchronously and two reloads happen back-to-back,	3761	$Coro::current->{desc} = "perl_reload";
2404	# coro crashes during coro_state_free->destroy here.
2405
2406	$RELOAD_WATCHER ||= Event->timer (after => 0, data => WF_AUTOCANCEL, cb => sub {
2407	reload;	3762	reload_perl;
2408	undef $RELOAD_WATCHER;
2409	});	3763	};
2410	}	3764	}
2411	};	3765	};
2412		3766
2413	unshift @INC, $LIBDIR;	3767	unshift @INC, $LIBDIR;
2414		3768
2415	$TICK_WATCHER = Event->timer (	3769	my $bug_warning = 0;
2416	reentrant => 0,
2417	prio => 0,
2418	at => $NEXT_TICK || $TICK,
2419	data => WF_AUTOCANCEL,
2420	cb => sub {
2421	$NOW = Event::time;
2422		3770
		3771	our @WAIT_FOR_TICK;
		3772	our @WAIT_FOR_TICK_BEGIN;
		3773
		3774	sub wait_for_tick {
		3775	return if tick_inhibit || $Coro::current == $Coro::main;
		3776
		3777	my $signal = new Coro::Signal;
		3778	push @WAIT_FOR_TICK, $signal;
		3779	$signal->wait;
		3780	}
		3781
		3782	sub wait_for_tick_begin {
		3783	return if tick_inhibit || $Coro::current == $Coro::main;
		3784
		3785	my $signal = new Coro::Signal;
		3786	push @WAIT_FOR_TICK_BEGIN, $signal;
		3787	$signal->wait;
		3788	}
		3789
		3790	sub tick {
		3791	if ($Coro::current != $Coro::main) {
		3792	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3793	unless ++$bug_warning > 10;
		3794	return;
		3795	}
		3796
2423	cf::server_tick; # one server iteration	3797	cf::server_tick; # one server iteration
2424	$RUNTIME += $TICK;
2425	$NEXT_TICK += $TICK;
2426		3798
2427	$WAIT_FOR_TICK->broadcast;	3799	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2428	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3800	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2429		3801	Coro::async_pool {
2430	# if we are delayed by four ticks or more, skip them all	3802	$Coro::current->{desc} = "runtime saver";
2431	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2432
2433	$TICK_WATCHER->at ($NEXT_TICK);
2434	$TICK_WATCHER->start;
2435	},
2436	);
2437
2438	IO::AIO::max_poll_time $TICK * 0.2;
2439
2440	$AIO_POLL_WATCHER = Event->io (
2441	fd => IO::AIO::poll_fileno,
2442	poll => 'r',
2443	prio => 5,
2444	data => WF_AUTOCANCEL,
2445	cb => \&IO::AIO::poll_cb,
2446	);
2447
2448	$WRITE_RUNTIME_WATCHER = Event->timer (
2449	data => WF_AUTOCANCEL,
2450	after => 0,
2451	interval => 10,
2452	cb => sub {
2453	(Coro::unblock_sub {
2454	write_runtime	3803	write_runtime_sync
2455	or warn "ERROR: unable to write runtime file: $!";	3804	or warn "ERROR: unable to write runtime file: $!";
2456	})->();	3805	};
2457	},	3806	}
2458	);	3807
		3808	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3809	$sig->send;
		3810	}
		3811	while (my $sig = shift @WAIT_FOR_TICK) {
		3812	$sig->send;
		3813	}
		3814
		3815	$LOAD = ($NOW - $TICK_START) / $TICK;
		3816	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3817
		3818	if (0) {
		3819	if ($NEXT_TICK) {
		3820	my $jitter = $TICK_START - $NEXT_TICK;
		3821	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3822	warn "jitter $JITTER\n";#d#
		3823	}
		3824	}
		3825	}
		3826
		3827	{
		3828	# configure BDB
		3829
		3830	BDB::min_parallel 8;
		3831	BDB::max_poll_reqs $TICK * 0.1;
		3832	$AnyEvent::BDB::WATCHER->priority (1);
		3833
		3834	unless ($DB_ENV) {
		3835	$DB_ENV = BDB::db_env_create;
		3836	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3837	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3838	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3839	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3840	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3841
		3842	cf::sync_job {
		3843	eval {
		3844	BDB::db_env_open
		3845	$DB_ENV,
		3846	$BDBDIR,
		3847	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3848	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3849	0666;
		3850
		3851	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3852	};
		3853
		3854	cf::cleanup "db_env_open(db): $@" if $@;
		3855	};
		3856	}
		3857
		3858	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3859	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3860	};
		3861	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3862	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3863	};
		3864	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3865	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3866	};
		3867	}
		3868
		3869	{
		3870	# configure IO::AIO
		3871
		3872	IO::AIO::min_parallel 8;
		3873	IO::AIO::max_poll_time $TICK * 0.1;
		3874	undef $AnyEvent::AIO::WATCHER;
		3875	}
		3876
		3877	my $_log_backtrace;
		3878
		3879	sub _log_backtrace {
		3880	my ($msg, @addr) = @_;
		3881
		3882	$msg =~ s/\n//;
		3883
		3884	# limit the # of concurrent backtraces
		3885	if ($_log_backtrace < 2) {
		3886	++$_log_backtrace;
		3887	my $perl_bt = Carp::longmess $msg;
		3888	async {
		3889	$Coro::current->{desc} = "abt $msg";
		3890
		3891	my @bt = fork_call {
		3892	@addr = map { sprintf "%x", $_ } @addr;
		3893	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3894	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3895	or die "addr2line: $!";
		3896
		3897	my @funcs;
		3898	my @res = <$fh>;
		3899	chomp for @res;
		3900	while (@res) {
		3901	my ($func, $line) = splice @res, 0, 2, ();
		3902	push @funcs, "[$func] $line";
		3903	}
		3904
		3905	@funcs
		3906	};
		3907
		3908	LOG llevInfo, "[ABT] $perl_bt\n";
		3909	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3910	LOG llevInfo, "[ABT] $_\n" for @bt;
		3911	--$_log_backtrace;
		3912	};
		3913	} else {
		3914	LOG llevInfo, "[ABT] $msg\n";
		3915	LOG llevInfo, "[ABT] [suppressed]\n";
		3916	}
		3917	}
		3918
		3919	# load additional modules
		3920	use cf::pod;
2459		3921
2460	END { cf::emergency_save }	3922	END { cf::emergency_save }
2461		3923
2462	1	3924	1
2463		3925

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