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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.171 by root, Sun Jan 14 12:24:48 2007 UTC vs.
Revision 1.455 by root, Sat Sep 27 08:17:40 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 3.3 ();	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
…		…
1113		1713
1114	use Fcntl;	1714	use Fcntl;
1115	use Coro::AIO;	1715	use Coro::AIO;
1116		1716
1117	use overload	1717	use overload
1118	'""' => \&as_string;	1718	'""' => \&as_string,
		1719	fallback => 1;
1119		1720
1120	our $MAX_RESET = 3600;	1721	our $MAX_RESET = 3600;
1121	our $DEFAULT_RESET = 3000;	1722	our $DEFAULT_RESET = 3000;
1122		1723
1123	sub generate_random_map {	1724	sub generate_random_map {
1124	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
1125		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},
…		…
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 {
		1767	my ($self, $merge) = @_;
		1768
1156	# we have to keep some variables in memory intact	1769	# we have to keep some variables in memory intact
1157	local $_[0]{path};	1770	local $self->{path};
1158	local $_[0]{deny_save};	1771	local $self->{load_path};
1159	local $_[0]{deny_reset};
1160		1772
1161	$_[0]->SUPER::thawer_merge ($_[1]);	1773	$self->SUPER::thawer_merge ($merge);
1162	}	1774	}
1163		1775
1164	sub normalise {	1776	sub normalise {
1165	my ($path, $base) = @_;	1777	my ($path, $base) = @_;
		1778
		1779	$path = "$path"; # make sure its a string
		1780
		1781	$path =~ s/\.map$//;
1166		1782
1167	# map plan:	1783	# map plan:
1168	#	1784	#
1169	# /! non-realised random map exit (special hack!)	1785	# /! non-realised random map exit (special hack!)
1170	# {... are special paths that are not being touched	1786	# {... are special paths that are not being touched
…		…
1198		1814
1199	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
1200		1816
1201	$path = normalise $path, $base;	1817	$path = normalise $path, $base;
1202		1818
1203	for my $pkg (keys %EXT_MAP) {	1819	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1204	if ($path =~ $EXT_MAP{$pkg}) {	1820	if ($path =~ $EXT_MAP{$pkg}[1]) {
1205	my $self = bless cf::map::new, $pkg;	1821	my $self = bless cf::map::new, $pkg;
1206	$self->{path} = $path; $self->path ($path);	1822	$self->{path} = $path; $self->path ($path);
1207	$self->init; # pass $1 etc.	1823	$self->init; # pass $1 etc.
1208	return $self;	1824	return $self;
1209	}	1825	}
1210	}	1826	}
1211		1827
1212	Carp::carp "unable to resolve path '$path'.";	1828	Carp::cluck "unable to resolve path '$path' (base '$base').";
1213	()	1829	()
1214	}	1830	}
1215		1831
1216	sub init {	1832	sub init {
1217	my ($self) = @_;	1833	my ($self) = @_;
…		…
1232		1848
1233	# the original (read-only) location	1849	# the original (read-only) location
1234	sub load_path {	1850	sub load_path {
1235	my ($self) = @_;	1851	my ($self) = @_;
1236		1852
1237	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1853	"$MAPDIR/$self->{path}.map"
1238	}	1854	}
1239		1855
1240	# the temporary/swap location	1856	# the temporary/swap location
1241	sub save_path {	1857	sub save_path {
1242	my ($self) = @_;	1858	my ($self) = @_;
1243		1859
1244	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1860	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1245	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1861	"$TMPDIR/$path.map"
1246	}	1862	}
1247		1863
1248	# the unique path, undef == no special unique path	1864	# the unique path, undef == no special unique path
1249	sub uniq_path {	1865	sub uniq_path {
1250	my ($self) = @_;	1866	my ($self) = @_;
1251		1867
1252	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1868	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1253	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1869	"$UNIQUEDIR/$path"
1254	}	1870	}
1255		1871
1256	# and all this just because we cannot iterate over	1872	# and all this just because we cannot iterate over
1257	# all maps in C++...	1873	# all maps in C++...
1258	sub change_all_map_light {	1874	sub change_all_map_light {
…		…
1260		1876
1261	$_->change_map_light ($change)	1877	$_->change_map_light ($change)
1262	for grep $_->outdoor, values %cf::MAP;	1878	for grep $_->outdoor, values %cf::MAP;
1263	}	1879	}
1264		1880
		1881	sub decay_objects {
		1882	my ($self) = @_;
		1883
		1884	return if $self->{deny_reset};
		1885
		1886	$self->do_decay_objects;
		1887	}
		1888
1265	sub unlink_save {	1889	sub unlink_save {
1266	my ($self) = @_;	1890	my ($self) = @_;
1267		1891
1268	utf8::encode (my $save = $self->save_path);	1892	utf8::encode (my $save = $self->save_path);
1269	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1893	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1272		1896
1273	sub load_header_from($) {	1897	sub load_header_from($) {
1274	my ($self, $path) = @_;	1898	my ($self, $path) = @_;
1275		1899
1276	utf8::encode $path;	1900	utf8::encode $path;
1277	aio_open $path, O_RDONLY, 0	1901	my $f = new_from_file cf::object::thawer $path
1278	or return;	1902	or return;
1279		1903
1280	$self->_load_header ($path)	1904	$self->_load_header ($f)
1281	or return;	1905	or return;
1282		1906
		1907	local $MAP_LOADING{$self->{path}} = $self;
		1908	$f->resolve_delayed_derefs;
		1909
1283	$self->{load_path} = $path;	1910	$self->{load_path} = $path;
1284		1911
1285	1	1912	1
1286	}	1913	}
1287		1914
1288	sub load_orig {	1915	sub load_header_orig {
1289	my ($self) = @_;	1916	my ($self) = @_;
1290		1917
1291	$self->load_header_from ($self->load_path)	1918	$self->load_header_from ($self->load_path)
1292	}	1919	}
1293		1920
1294	sub load_temp {	1921	sub load_header_temp {
1295	my ($self) = @_;	1922	my ($self) = @_;
1296		1923
1297	$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;
1298	}	1944	}
1299		1945
1300	sub load_header {	1946	sub load_header {
1301	my ($self) = @_;	1947	my ($self) = @_;
1302		1948
1303	if ($self->load_temp) {	1949	if ($self->load_header_temp) {
1304	$self->last_access ((delete $self->{last_access})	1950	$self->prepare_temp;
1305	|| $cf::RUNTIME); #d#
1306	# safety
1307	$self->{instantiate_time} = $cf::RUNTIME
1308	if $self->{instantiate_time} > $cf::RUNTIME;
1309	} else {	1951	} else {
1310	$self->load_orig	1952	$self->load_header_orig
1311	or return;	1953	or return;
1312		1954	$self->prepare_orig;
1313	$self->{load_original} = 1;
1314	$self->{instantiate_time} = $cf::RUNTIME;
1315	$self->last_access ($cf::RUNTIME);
1316	$self->instantiate;
1317	}	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;
1318		1962
1319	1	1963	1
1320	}	1964	}
1321		1965
1322	sub find;	1966	sub find;
1323	sub find {	1967	sub find {
1324	my ($path, $origin) = @_;	1968	my ($path, $origin) = @_;
1325		1969
1326	$path = normalise $path, $origin && $origin->path;	1970	$path = normalise $path, $origin && $origin->path;
1327		1971
		1972	cf::lock_wait "map_data:$path";#d#remove
1328	cf::lock_wait "map_find:$path";	1973	cf::lock_wait "map_find:$path";
1329		1974
1330	$cf::MAP{$path} || do {	1975	$cf::MAP{$path} || do {
		1976	my $guard1 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1331	my $guard = cf::lock_acquire "map_find:$path";	1977	my $guard2 = cf::lock_acquire "map_find:$path";
		1978
1332	my $map = new_from_path cf::map $path	1979	my $map = new_from_path cf::map $path
1333	or return;	1980	or return;
1334		1981
1335	$map->{last_save} = $cf::RUNTIME;	1982	$map->{last_save} = $cf::RUNTIME;
1336		1983
1337	$map->load_header	1984	$map->load_header
1338	or return;	1985	or return;
1339		1986
1340	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
1341	$cf::WAIT_FOR_TICK->wait;	1989	#$cf::WAIT_FOR_TICK->wait;
		1990	undef $guard2;
		1991	undef $guard1;
1342	$map->reset;	1992	$map->reset;
1343	undef $guard;
1344	$map = find $path	1993	return find $path;
1345	or return;
1346	}	1994	}
1347		1995
1348	$cf::MAP{$path} = $map	1996	$cf::MAP{$path} = $map
1349	}	1997	}
1350	}	1998	}
		1999
		2000	sub pre_load { }
		2001	sub post_load { }
1351		2002
1352	sub load {	2003	sub load {
1353	my ($self) = @_;	2004	my ($self) = @_;
1354		2005
		2006	local $self->{deny_reset} = 1; # loading can take a long time
		2007
1355	my $path = $self->{path};	2008	my $path = $self->{path};
		2009
		2010	{
1356	my $guard = cf::lock_acquire "map_load:$path";	2011	my $guard = cf::lock_acquire "map_data:$path";
1357		2012
		2013	return unless $self->valid;
1358	return if $self->in_memory != cf::MAP_SWAPPED;	2014	return unless $self->in_memory == cf::MAP_SWAPPED;
1359		2015
1360	$self->in_memory (cf::MAP_LOADING);	2016	$self->in_memory (cf::MAP_LOADING);
1361		2017
1362	$self->alloc;	2018	$self->alloc;
1363	$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)
1364	or return;	2026	or return;
1365		2027
1366	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2028	$self->post_load_original
1367	if delete $self->{load_original};	2029	if delete $self->{load_original};
1368		2030
1369	if (my $uniq = $self->uniq_path) {	2031	if (my $uniq = $self->uniq_path) {
1370	utf8::encode $uniq;	2032	utf8::encode $uniq;
1371	if (aio_open $uniq, O_RDONLY, 0) {	2033	unless (aio_stat $uniq) {
		2034	if (my $f = new_from_file cf::object::thawer $uniq) {
1372	$self->clear_unique_items;	2035	$self->clear_unique_items;
1373	$self->_load_objects ($uniq, 0);	2036	$self->_load_objects ($f);
		2037	$f->resolve_delayed_derefs;
		2038	}
1374	}	2039	}
1375	}	2040	}
1376		2041
1377	Coro::cede;	2042	$f->resolve_delayed_derefs;
1378		2043
		2044	cf::cede_to_tick;
1379	# now do the right thing for maps	2045	# now do the right thing for maps
1380	$self->link_multipart_objects;	2046	$self->link_multipart_objects;
1381
1382	unless ($self->{deny_activate}) {
1383	$self->decay_objects;
1384	$self->fix_auto_apply;
1385	$self->update_buttons;
1386	Coro::cede;
1387	$self->set_darkness_map;
1388	$self->difficulty ($self->estimate_difficulty)	2047	$self->difficulty ($self->estimate_difficulty)
1389	unless $self->difficulty;	2048	unless $self->difficulty;
1390	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;
1391	$self->activate;	2058	$self->activate;
1392	}	2059	}
1393		2060
		2061	$self->{last_save} = $cf::RUNTIME;
		2062	$self->last_access ($cf::RUNTIME);
		2063
1394	$self->in_memory (cf::MAP_IN_MEMORY);	2064	$self->in_memory (cf::MAP_ACTIVE);
		2065	}
		2066
		2067	$self->post_load;
1395	}	2068	}
1396		2069
1397	sub customise_for {	2070	sub customise_for {
1398	my ($self, $ob) = @_;	2071	my ($self, $ob) = @_;
1399		2072
1400	return find "~" . $ob->name . "/" . $self->{path}	2073	return find "~" . $ob->name . "/" . $self->{path}
1401	if $self->per_player;	2074	if $self->per_player;
1402		2075
		2076	# return find "?party/" . $ob->name . "/" . $self->{path}
		2077	# if $self->per_party;
		2078
1403	$self	2079	$self
1404	}	2080	}
1405		2081
1406	# 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
1407	sub load_diag {	2083	sub load_neighbours {
1408	my ($map) = @_;	2084	my ($map) = @_;
1409		2085
1410	my @diag; # diagonal neighbours	2086	my @neigh; # diagonal neighbours
1411		2087
1412	for (0 .. 3) {	2088	for (0 .. 3) {
1413	my $neigh = $map->tile_path ($_)	2089	my $neigh = $map->tile_path ($_)
1414	or next;	2090	or next;
1415	$neigh = find $neigh, $map	2091	$neigh = find $neigh, $map
1416	or next;	2092	or next;
1417	$neigh->load;	2093	$neigh->load;
1418		2094
		2095	push @neigh,
1419	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2096	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1420	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2097	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1421	}	2098	}
1422		2099
1423	for (@diag) {	2100	for (grep defined $_->[0], @neigh) {
		2101	my ($path, $origin) = @$_;
1424	my $neigh = find @$_	2102	my $neigh = find $path, $origin
1425	or next;	2103	or next;
1426	$neigh->load;	2104	$neigh->load;
1427	}	2105	}
1428	}	2106	}
1429		2107
…		…
1434	}	2112	}
1435		2113
1436	sub do_load_sync {	2114	sub do_load_sync {
1437	my ($map) = @_;	2115	my ($map) = @_;
1438		2116
		2117	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2118	if $Coro::current == $Coro::main;
		2119
1439	cf::sync_job { $map->load };	2120	cf::sync_job { $map->load };
1440	}	2121	}
1441		2122
1442	our %MAP_PREFETCH;	2123	our %MAP_PREFETCH;
1443	our $MAP_PREFETCHER = Coro::async {	2124	our $MAP_PREFETCHER = undef;
1444	while () {
1445	for my $path (keys %MAP_PREFETCH) {
1446	my $map = find $path
1447	or next;
1448	$map->load;
1449
1450	delete $MAP_PREFETCH{$path};
1451	}
1452	Coro::schedule;
1453	}
1454	};
1455		2125
1456	sub find_async {	2126	sub find_async {
1457	my ($path, $origin) = @_;	2127	my ($path, $origin, $load) = @_;
1458		2128
1459	$path = normalise $path, $origin && $origin->{path};	2129	$path = normalise $path, $origin && $origin->{path};
1460		2130
1461	if (my $map = $cf::MAP{$path}) {	2131	if (my $map = $cf::MAP{$path}) {
1462	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;
1463	}	2150	};
1464
1465	$MAP_PREFETCH{$path} = 0;
1466	$MAP_PREFETCHER->ready;	2151	$MAP_PREFETCHER->prio (6);
1467		2152
1468	()	2153	()
1469	}	2154	}
1470		2155
1471	sub save {	2156	sub save {
1472	my ($self) = @_;	2157	my ($self) = @_;
1473		2158
1474	my $lock = cf::lock_acquire "map_data:" . $self->path;	2159	my $lock = cf::lock_acquire "map_data:$self->{path}";
1475		2160
1476	$self->{last_save} = $cf::RUNTIME;	2161	$self->{last_save} = $cf::RUNTIME;
1477		2162
1478	return unless $self->dirty;	2163	return unless $self->dirty;
1479		2164
…		…
1485	return if $self->{deny_save};	2170	return if $self->{deny_save};
1486		2171
1487	local $self->{last_access} = $self->last_access;#d#	2172	local $self->{last_access} = $self->last_access;#d#
1488		2173
1489	cf::async {	2174	cf::async {
		2175	$Coro::current->{desc} = "map player save";
1490	$_->contr->save for $self->players;	2176	$_->contr->save for $self->players;
1491	};	2177	};
		2178
		2179	cf::get_slot 0.02;
1492		2180
1493	if ($uniq) {	2181	if ($uniq) {
1494	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2182	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1495	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2183	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1496	} else {	2184	} else {
…		…
1502	my ($self) = @_;	2190	my ($self) = @_;
1503		2191
1504	# save first because save cedes	2192	# save first because save cedes
1505	$self->save;	2193	$self->save;
1506		2194
1507	my $lock = cf::lock_acquire "map_data:" . $self->path;	2195	my $lock = cf::lock_acquire "map_data:$self->{path}";
1508		2196
1509	return if $self->players;	2197	return if $self->players;
1510	return if $self->in_memory != cf::MAP_IN_MEMORY;	2198	return if $self->in_memory != cf::MAP_ACTIVE;
1511	return if $self->{deny_save};	2199	return if $self->{deny_save};
1512		2200
		2201	$self->in_memory (cf::MAP_SWAPPED);
		2202
		2203	$self->deactivate;
		2204	$_->clear_links_to ($self) for values %cf::MAP;
1513	$self->clear;	2205	$self->clear;
1514	$self->in_memory (cf::MAP_SWAPPED);
1515	}	2206	}
1516		2207
1517	sub reset_at {	2208	sub reset_at {
1518	my ($self) = @_;	2209	my ($self) = @_;
1519		2210
1520	# TODO: safety, remove and allow resettable per-player maps	2211	# TODO: safety, remove and allow resettable per-player maps
1521	return 1e99 if $self->isa ("ext::map_per_player");#d#
1522	return 1e99 if $self->{deny_reset};	2212	return 1e99 if $self->{deny_reset};
1523		2213
1524	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2214	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1525	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;
1526		2216
…		…
1531	my ($self) = @_;	2221	my ($self) = @_;
1532		2222
1533	$self->reset_at <= $cf::RUNTIME	2223	$self->reset_at <= $cf::RUNTIME
1534	}	2224	}
1535		2225
1536	sub rename {
1537	my ($self, $new_path) = @_;
1538
1539	normalise $new_path;
1540
1541	$self->unlink_save;
1542
1543	delete $cf::MAP{$self->path};
1544	$self->{path} = $new_path; $self->path ($self->{path});
1545	$cf::MAP{$self->path} = $self;
1546
1547	$self->save;
1548	}
1549
1550	sub reset {	2226	sub reset {
1551	my ($self) = @_;	2227	my ($self) = @_;
1552		2228
1553	my $lock = cf::lock_acquire "map_data:$self->{path}";	2229	my $lock = cf::lock_acquire "map_data:$self->{path}";
1554		2230
1555	return if $self->players;	2231	return if $self->players;
1556	return if $self->isa ("ext::map_per_player");#d#
1557		2232
1558	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	}
1559		2244
1560	delete $cf::MAP{$self->path};	2245	delete $cf::MAP{$self->path};
1561		2246
1562	$self->in_memory (cf::MAP_SWAPPED);	2247	$self->deactivate;
		2248	$_->clear_links_to ($self) for values %cf::MAP;
1563	$self->clear;	2249	$self->clear;
1564
1565	$_->clear_links_to ($self) for values %cf::MAP;
1566		2250
1567	$self->unlink_save;	2251	$self->unlink_save;
1568	$self->destroy;	2252	$self->destroy;
1569	}	2253	}
1570		2254
1571	my $nuke_counter = "aaaa";	2255	my $nuke_counter = "aaaa";
1572		2256
1573	sub nuke {	2257	sub nuke {
1574	my ($self) = @_;	2258	my ($self) = @_;
1575		2259
		2260	{
		2261	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2262
		2263	delete $cf::MAP{$self->path};
		2264
		2265	$self->unlink_save;
		2266
		2267	bless $self, "cf::map";
		2268	delete $self->{deny_reset};
1576	$self->{deny_save} = 1;	2269	$self->{deny_save} = 1;
1577	$self->reset_timeout (1);	2270	$self->reset_timeout (1);
1578	$self->rename ("{nuke}/" . ($nuke_counter++));	2271	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2272
		2273	$cf::MAP{$self->path} = $self;
		2274	}
		2275
1579	$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	]
1580	}	2313	}
1581		2314
1582	=item cf::map::unique_maps	2315	=item cf::map::unique_maps
1583		2316
1584	Returns an arrayref of paths of all shared maps that have	2317	Returns an arrayref of paths of all shared maps that have
1585	instantiated unique items. May block.	2318	instantiated unique items. May block.
1586		2319
1587	=cut	2320	=cut
1588		2321
1589	sub unique_maps() {	2322	sub unique_maps() {
1590	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2323	[
1591	or return;	2324	map {
1592
1593	my @paths;
1594
1595	for (@$files) {
1596	utf8::decode $_;	2325	utf8::decode $_;
1597	next if /\.pst$/;	2326	s/\.map$//; # TODO future compatibility hack
1598	next unless /^$PATH_SEP/o;	2327	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1599		2328	? ()
1600	s/\.map$//;	2329	: normalise $_
1601	push @paths, $_;	2330	} @{ aio_readdir $UNIQUEDIR or [] }
1602	}	2331	]
1603
1604	\@paths
1605	}	2332	}
1606
1607	package cf;
1608		2333
1609	=back	2334	=back
1610		2335
1611	=head3 cf::object	2336	=head3 cf::object
1612		2337
…		…
1616		2341
1617	=over 4	2342	=over 4
1618		2343
1619	=item $ob->inv_recursive	2344	=item $ob->inv_recursive
1620		2345
1621	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.
1622		2348
1623	=cut	2349	=cut
1624		2350
1625	sub inv_recursive_;	2351	sub inv_recursive_;
1626	sub inv_recursive_ {	2352	sub inv_recursive_ {
…		…
1629		2355
1630	sub inv_recursive {	2356	sub inv_recursive {
1631	inv_recursive_ inv $_[0]	2357	inv_recursive_ inv $_[0]
1632	}	2358	}
1633		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
1634	package cf;	2388	package cf;
1635		2389
1636	=back	2390	=back
1637		2391
1638	=head3 cf::object::player	2392	=head3 cf::object::player
…		…
1644	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>
1645	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
1646	dialogue with the given NPC character.	2400	dialogue with the given NPC character.
1647		2401
1648	=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	};
1649		2417
1650	# rough implementation of a future "reply" method that works	2418	# rough implementation of a future "reply" method that works
1651	# with dialog boxes.	2419	# with dialog boxes.
1652	#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
1653	sub cf::object::player::reply($$$;$) {	2421	sub cf::object::player::reply($$$;$) {
…		…
1655		2423
1656	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2424	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1657		2425
1658	if ($self->{record_replies}) {	2426	if ($self->{record_replies}) {
1659	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2427	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2428
1660	} 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 {
1661	$msg = $npc->name . " says: $msg" if $npc;	2437	$msg = $npc->name . " says: $msg" if $npc;
1662	$self->message ($msg, $flags);	2438	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2439	}
1663	}	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 (@_);
1664	}	2451	}
1665		2452
1666	=item $player_object->may ("access")	2453	=item $player_object->may ("access")
1667		2454
1668	Returns wether the given player is authorized to access resource "access"	2455	Returns wether the given player is authorized to access resource "access"
…		…
1681		2468
1682	=item $player_object->enter_link	2469	=item $player_object->enter_link
1683		2470
1684	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}>).
1685		2472
1686	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.
1687	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.
1688		2477
1689	Will never block.	2478	Will never block.
1690		2479
1691	=item $player_object->leave_link ($map, $x, $y)	2480	=item $player_object->leave_link ($map, $x, $y)
1692		2481
…		…
1700	=cut	2489	=cut
1701		2490
1702	sub link_map {	2491	sub link_map {
1703	unless ($LINK_MAP) {	2492	unless ($LINK_MAP) {
1704	$LINK_MAP = cf::map::find "{link}"	2493	$LINK_MAP = cf::map::find "{link}"
1705	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2494	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1706	$LINK_MAP->load;	2495	$LINK_MAP->load;
1707	}	2496	}
1708		2497
1709	$LINK_MAP	2498	$LINK_MAP
1710	}	2499	}
…		…
1715	$self->deactivate_recursive;	2504	$self->deactivate_recursive;
1716		2505
1717	return if UNIVERSAL::isa $self->map, "ext::map_link";	2506	return if UNIVERSAL::isa $self->map, "ext::map_link";
1718		2507
1719	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2508	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1720	if $self->map;	2509	if $self->map && $self->map->{path} ne "{link}";
1721		2510
1722	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2511	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1723	}	2512	}
1724		2513
1725	sub cf::object::player::leave_link {	2514	sub cf::object::player::leave_link {
1726	my ($self, $map, $x, $y) = @_;	2515	my ($self, $map, $x, $y) = @_;
		2516
		2517	return unless $self->contr->active;
1727		2518
1728	my $link_pos = delete $self->{_link_pos};	2519	my $link_pos = delete $self->{_link_pos};
1729		2520
1730	unless ($map) {	2521	unless ($map) {
1731	# restore original map position	2522	# restore original map position
…		…
1745	# use -1 or undef as default coordinates, not 0, 0	2536	# use -1 or undef as default coordinates, not 0, 0
1746	($x, $y) = ($map->enter_x, $map->enter_y)	2537	($x, $y) = ($map->enter_x, $map->enter_y)
1747	if $x <=0 && $y <= 0;	2538	if $x <=0 && $y <= 0;
1748		2539
1749	$map->load;	2540	$map->load;
1750	$map->load_diag;	2541	$map->load_neighbours;
1751		2542
1752	return unless $self->contr->active;	2543	return unless $self->contr->active;
		2544	$self->flag (cf::FLAG_DEBUG, 0);#d# temp
1753	$self->activate_recursive;	2545	$self->activate_recursive;
		2546
		2547	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1754	$self->enter_map ($map, $x, $y);	2548	$self->enter_map ($map, $x, $y);
1755	}	2549	}
1756		2550
1757	cf::player->attach (	2551	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1758	on_logout => sub {
1759	my ($pl) = @_;
1760		2552
1761	# abort map switching before logout	2553	Moves the player to the given map-path and coordinates by first freezing
1762	if ($pl->ob->{_link_pos}) {	2554	her, loading and preparing them map, calling the provided $check callback
1763	cf::sync_job {	2555	that has to return the map if sucecssful, and then unfreezes the player on
1764	$pl->ob->leave_link	2556	the new (success) or old (failed) map position. In either case, $done will
1765	};	2557	be called at the end of this process.
1766	}
1767	},
1768	on_login => sub {
1769	my ($pl) = @_;
1770		2558
1771	# try to abort aborted map switching on player login :)	2559	Note that $check will be called with a potentially non-loaded map, so if
1772	# should happen only on crashes	2560	it needs a loaded map it has to call C<< ->load >>.
1773	if ($pl->ob->{_link_pos}) {
1774	$pl->ob->enter_link;
1775	(async {
1776	# we need this sleep as the login has a concurrent enter_exit running
1777	# and this sleep increases chances of the player not ending up in scorn
1778	$pl->ob->reply (undef,
1779	"There was an internal problem at your last logout, "
1780	. "the server will try to bring you to your intended destination in a second.",
1781	cf::NDI_RED);
1782	Coro::Timer::sleep 1;
1783	$pl->ob->leave_link;
1784	})->prio (2);
1785	}
1786	},
1787	);
1788		2561
1789	=item $player_object->goto ($path, $x, $y)
1790
1791	=cut	2562	=cut
		2563
		2564	our $GOTOGEN;
1792		2565
1793	sub cf::object::player::goto {	2566	sub cf::object::player::goto {
1794	my ($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;
1795		2571
1796	$self->enter_link;	2572	$self->enter_link;
1797		2573
1798	(async {	2574	(async {
1799	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) {
1800	$map = $map->customise_for ($self) if $map;	2600	$map = $map->customise_for ($self);
1801		2601	$map = $check->($map) if $check && $map;
1802	# warn "entering ", $map->path, " at ($x, $y)\n"	2602	} else {
1803	# if $map;
1804
1805	$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	}
1806		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};
1807	$self->leave_link ($map, $x, $y);	2616	$self->leave_link ($map, $x, $y);
		2617	}
		2618
		2619	$done->() if $done;
1808	})->prio (1);	2620	})->prio (1);
1809	}	2621	}
1810		2622
1811	=item $player_object->enter_exit ($exit_object)	2623	=item $player_object->enter_exit ($exit_object)
1812		2624
…		…
1814		2626
1815	sub parse_random_map_params {	2627	sub parse_random_map_params {
1816	my ($spec) = @_;	2628	my ($spec) = @_;
1817		2629
1818	my $rmp = { # defaults	2630	my $rmp = { # defaults
1819	xsize => 10,	2631	xsize => (cf::rndm 15, 40),
1820	ysize => 10,	2632	ysize => (cf::rndm 15, 40),
		2633	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2634	#layout => string,
1821	};	2635	};
1822		2636
1823	for (split /\n/, $spec) {	2637	for (split /\n/, $spec) {
1824	my ($k, $v) = split /\s+/, $_, 2;	2638	my ($k, $v) = split /\s+/, $_, 2;
1825		2639
…		…
1837	# that depends on the exit object	2651	# that depends on the exit object
1838		2652
1839	my $rmp = parse_random_map_params $exit->msg;	2653	my $rmp = parse_random_map_params $exit->msg;
1840		2654
1841	if ($exit->map) {	2655	if ($exit->map) {
1842	$rmp->{region} = $exit->map->region_name;	2656	$rmp->{region} = $exit->region->name;
1843	$rmp->{origin_map} = $exit->map->path;	2657	$rmp->{origin_map} = $exit->map->path;
1844	$rmp->{origin_x} = $exit->x;	2658	$rmp->{origin_x} = $exit->x;
1845	$rmp->{origin_y} = $exit->y;	2659	$rmp->{origin_y} = $exit->y;
		2660
		2661	$exit->map->touch;
1846	}	2662	}
1847		2663
1848	$rmp->{random_seed} ||= $exit->random_seed;	2664	$rmp->{random_seed} ||= $exit->random_seed;
1849		2665
1850	my $data = cf::to_json $rmp;	2666	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1851	my $md5 = Digest::MD5::md5_hex $data;	2667	my $md5 = Digest::MD5::md5_hex $data;
		2668	my $meta = "$RANDOMDIR/$md5.meta";
1852		2669
1853	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2670	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1854	aio_write $fh, 0, (length $data), $data, 0;	2671	aio_write $fh, 0, (length $data), $data, 0;
		2672	undef $fh;
		2673	aio_rename "$meta~", $meta;
1855		2674
		2675	my $slaying = "?random/$md5";
		2676
		2677	if ($exit->valid) {
1856	$exit->slaying ("?random/$md5");	2678	$exit->slaying ("?random/$md5");
1857	$exit->msg (undef);	2679	$exit->msg (undef);
		2680	}
1858	}	2681	}
1859	}	2682	}
1860		2683
1861	sub cf::object::player::enter_exit {	2684	sub cf::object::player::enter_exit {
1862	my ($self, $exit) = @_;	2685	my ($self, $exit) = @_;
…		…
1864	return unless $self->type == cf::PLAYER;	2687	return unless $self->type == cf::PLAYER;
1865		2688
1866	$self->enter_link;	2689	$self->enter_link;
1867		2690
1868	(async {	2691	(async {
1869	$self->deactivate_recursive; # just to be sure	2692	$Coro::current->{desc} = "enter_exit";
		2693
1870	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
1871	prepare_random_map $exit	2701	prepare_random_map $exit
1872	if $exit->slaying eq "/!";	2702	if $exit->slaying eq "/!";
		2703	}
1873		2704
1874	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;
1875	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2706	my $x = $exit->stats->hp;
		2707	my $y = $exit->stats->sp;
1876		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
1877	1;	2715	1
1878	}) {	2716	}) {
1879	$self->message ("Something went wrong deep within the crossfire server. "	2717	$self->message ("Something went wrong deep within the deliantra server. "
1880	. "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. "
1881	. "Please report this to the dungeon master!",	2719	. "Please report this to the dungeon master!",
1882	cf::NDI_UNIQUE | cf::NDI_RED);	2720	cf::NDI_UNIQUE | cf::NDI_RED);
1883		2721
1884	warn "ERROR in enter_exit: $@";	2722	warn "ERROR in enter_exit: $@";
1885	$self->leave_link;	2723	$self->leave_link;
1886	}	2724	}
1887	})->prio (1);	2725	})->prio (1);
…		…
1900		2738
1901	sub cf::client::send_drawinfo {	2739	sub cf::client::send_drawinfo {
1902	my ($self, $text, $flags) = @_;	2740	my ($self, $text, $flags) = @_;
1903		2741
1904	utf8::encode $text;	2742	utf8::encode $text;
1905	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2743	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1906	}	2744	}
1907		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	}
1908		2931
1909	=item $success = $client->query ($flags, "text", \&cb)	2932	=item $success = $client->query ($flags, "text", \&cb)
1910		2933
1911	Queues a query to the client, calling the given callback with	2934	Queues a query to the client, calling the given callback with
1912	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>,
1913	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>.
1914		2937
1915	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
1916	reliable at some point in the future.	2939	become reliable at some point in the future.
1917		2940
1918	=cut	2941	=cut
1919		2942
1920	sub cf::client::query {	2943	sub cf::client::query {
1921	my ($self, $flags, $text, $cb) = @_;	2944	my ($self, $flags, $text, $cb) = @_;
…		…
1929	utf8::encode $text;	2952	utf8::encode $text;
1930	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2953	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1931		2954
1932	$self->send_packet ($self->{query_queue}[0][0])	2955	$self->send_packet ($self->{query_queue}[0][0])
1933	if @{ $self->{query_queue} } == 1;	2956	if @{ $self->{query_queue} } == 1;
		2957
		2958	1
1934	}	2959	}
1935		2960
1936	cf::client->attach (	2961	cf::client->attach (
		2962	on_connect => sub {
		2963	my ($ns) = @_;
		2964
		2965	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2966	},
1937	on_reply => sub {	2967	on_reply => sub {
1938	my ($ns, $msg) = @_;	2968	my ($ns, $msg) = @_;
1939		2969
1940	# this weird shuffling is so that direct followup queries	2970	# this weird shuffling is so that direct followup queries
1941	# get handled first	2971	# get handled first
1942	my $queue = delete $ns->{query_queue}	2972	my $queue = delete $ns->{query_queue}
1943	or return; # be conservative, not sure how that can happen, but we saw a crash here	2973	or return; # be conservative, not sure how that can happen, but we saw a crash here
1944		2974
1945	(shift @$queue)->[1]->($msg);	2975	(shift @$queue)->[1]->($msg);
		2976	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1946		2977
1947	push @{ $ns->{query_queue} }, @$queue;	2978	push @{ $ns->{query_queue} }, @$queue;
1948		2979
1949	if (@{ $ns->{query_queue} } == @$queue) {	2980	if (@{ $ns->{query_queue} } == @$queue) {
1950	if (@$queue) {	2981	if (@$queue) {
…		…
1952	} else {	2983	} else {
1953	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2984	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1954	}	2985	}
1955	}	2986	}
1956	},	2987	},
		2988	on_exticmd => sub {
		2989	my ($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	},
1957	);	3014	);
1958		3015
1959	=item $client->async (\&cb)	3016	=item $client->async (\&cb)
1960		3017
1961	Create a new coroutine, running the specified callback. The coroutine will	3018	Create a new coroutine, running the specified callback. The coroutine will
…		…
2002	our $safe = new Safe "safe";	3059	our $safe = new Safe "safe";
2003	our $safe_hole = new Safe::Hole;	3060	our $safe_hole = new Safe::Hole;
2004		3061
2005	$SIG{FPE} = 'IGNORE';	3062	$SIG{FPE} = 'IGNORE';
2006		3063
2007	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3064	$safe->permit_only (Opcode::opset qw(
		3065	:base_core :base_mem :base_orig :base_math
		3066	grepstart grepwhile mapstart mapwhile
		3067	sort time
		3068	));
2008		3069
2009	# here we export the classes and methods available to script code	3070	# here we export the classes and methods available to script code
2010		3071
2011	=pod	3072	=pod
2012		3073
2013	The following fucntions and emthods are available within a safe environment:	3074	The following functions and methods are available within a safe environment:
2014		3075
2015	cf::object contr pay_amount pay_player map	3076	cf::object
		3077	contr pay_amount pay_player map x y force_find force_add destroy
		3078	insert remove name archname title slaying race decrease split
		3079
2016	cf::object::player player	3080	cf::object::player
2017	cf::player peaceful	3081	player
2018	cf::map trigger	3082
		3083	cf::player
		3084	peaceful
		3085
		3086	cf::map
		3087	trigger
2019		3088
2020	=cut	3089	=cut
2021		3090
2022	for (	3091	for (
2023	["cf::object" => qw(contr pay_amount pay_player map)],	3092	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3093	insert remove inv nrof name archname title slaying race
		3094	decrease split destroy change_exp)],
2024	["cf::object::player" => qw(player)],	3095	["cf::object::player" => qw(player)],
2025	["cf::player" => qw(peaceful)],	3096	["cf::player" => qw(peaceful)],
2026	["cf::map" => qw(trigger)],	3097	["cf::map" => qw(trigger)],
2027	) {	3098	) {
2028	no strict 'refs';	3099	no strict 'refs';
…		…
2099	=back	3170	=back
2100		3171
2101	=cut	3172	=cut
2102		3173
2103	#############################################################################	3174	#############################################################################
		3175	# the server's init and main functions
2104		3176
2105	=head2 EXTENSION DATABASE SUPPORT	3177	sub load_facedata($) {
		3178	my ($path) = @_;
2106		3179
2107	Crossfire maintains a very simple database for extension use. It can	3180	# HACK to clear player env face cache, we need some signal framework
2108	currently store anything that can be serialised using Storable, which	3181	# for this (global event?)
2109	excludes objects.	3182	%ext::player_env::MUSIC_FACE_CACHE = ();
2110		3183
2111	The parameter C<$family> should best start with the name of the extension	3184	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2112	using it, it should be unique.
2113		3185
2114	=over 4	3186	warn "loading facedata from $path\n";
2115		3187
2116	=item $hashref = cf::db_get $family	3188	my $facedata;
		3189	0 < aio_load $path, $facedata
		3190	or die "$path: $!";
2117		3191
2118	Return a hashref for use by the extension C<$family>, which can be	3192	$facedata = Coro::Storable::thaw $facedata;
2119	modified. After modifications, you have to call C<cf::db_dirty> or
2120	C<cf::db_sync>.
2121		3193
2122	=item $value = cf::db_get $family => $key	3194	$facedata->{version} == 2
		3195	or cf::cleanup "$path: version mismatch, cannot proceed.";
2123		3196
2124	Returns a single value from the database	3197	# patch in the exptable
2125		3198	$facedata->{resource}{"res/exp_table"} = {
2126	=item cf::db_put $family => $hashref	3199	type => FT_RSRC,
2127		3200	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2128	Stores the given family hashref into the database. Updates are delayed, if
2129	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2130
2131	=item cf::db_put $family => $key => $value
2132
2133	Stores the given C<$value> in the family hash. Updates are delayed, if you
2134	want the data to be synced to disk immediately, use C<cf::db_sync>.
2135
2136	=item cf::db_dirty
2137
2138	Marks the database as dirty, to be updated at a later time.
2139
2140	=item cf::db_sync
2141
2142	Immediately write the database to disk I<if it is dirty>.
2143
2144	=cut
2145
2146	our $DB;
2147
2148	{
2149	my $path = cf::localdir . "/database.pst";
2150
2151	sub db_load() {
2152	$DB = stat $path ? Storable::retrieve $path : { };
2153	}
2154
2155	my $pid;
2156
2157	sub db_save() {
2158	waitpid $pid, 0 if $pid;
2159	if (0 == ($pid = fork)) {
2160	$DB->{_meta}{version} = 1;
2161	Storable::nstore $DB, "$path~";
2162	rename "$path~", $path;
2163	cf::_exit 0 if defined $pid;
2164	}
2165	}
2166
2167	my $dirty;
2168
2169	sub db_sync() {
2170	db_save if $dirty;
2171	undef $dirty;
2172	}
2173
2174	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2175	db_sync;
2176	});	3201	};
		3202	cf::cede_to_tick;
2177		3203
2178	sub db_dirty() {
2179	$dirty = 1;
2180	$idle->start;
2181	}	3204	{
		3205	my $faces = $facedata->{faceinfo};
2182		3206
2183	sub db_get($;$) {	3207	while (my ($face, $info) = each %$faces) {
2184	@_ >= 2	3208	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2185	? $DB->{$_[0]}{$_[1]}
2186	: ($DB->{$_[0]} ||= { })
2187	}
2188		3209
2189	sub db_put($$;$) {	3210	cf::face::set_visibility $idx, $info->{visibility};
2190	if (@_ >= 3) {	3211	cf::face::set_magicmap $idx, $info->{magicmap};
2191	$DB->{$_[0]}{$_[1]} = $_[2];	3212	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2192	} else {	3213	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2193	$DB->{$_[0]} = $_[1];
2194	}
2195	db_dirty;
2196	}
2197		3214
2198	cf::global->attach (	3215	cf::cede_to_tick;
2199	prio => 10000,
2200	on_cleanup => sub {
2201	db_sync;
2202	},	3216	}
2203	);
2204	}
2205		3217
2206	#############################################################################	3218	while (my ($face, $info) = each %$faces) {
2207	# the server's main()	3219	next unless $info->{smooth};
2208		3220
2209	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 {
2210	open my $fh, "<:utf8", cf::confdir . "/config"	3363	open my $fh, "<:utf8", "$CONFDIR/config"
2211	or return;	3364	or return;
2212		3365
2213	local $/;	3366	local $/;
2214	*CFG = YAML::Syck::Load <$fh>;	3367	*CFG = YAML::Load <$fh>;
2215		3368
2216	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3369	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2217		3370
2218	$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};
2219	$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};
…		…
2225	};	3378	};
2226	warn $@ if $@;	3379	warn $@ if $@;
2227	}	3380	}
2228	}	3381	}
2229		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
2230	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
2231	# we must not ever block the main coroutine	3418	# we must not ever block the main coroutine
2232	local $Coro::idle = sub {	3419	local $Coro::idle = sub {
2233	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#
2234	async { Event::one_event };	3421	(async {
		3422	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3423	EV::loop EV::LOOP_ONESHOT;
		3424	})->prio (Coro::PRIO_MAX);
2235	};	3425	};
2236		3426
2237	cfg_load;	3427	evthread_start IO::AIO::poll_fileno;
2238	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
2239	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
2240	Event::loop;	3455	EV::loop;
2241	}	3456	}
2242		3457
2243	#############################################################################	3458	#############################################################################
2244	# initialisation and cleanup	3459	# initialisation and cleanup
2245		3460
2246	# install some emergency cleanup handlers	3461	# install some emergency cleanup handlers
2247	BEGIN {	3462	BEGIN {
		3463	our %SIGWATCHER = ();
2248	for my $signal (qw(INT HUP TERM)) {	3464	for my $signal (qw(INT HUP TERM)) {
2249	Event->signal (	3465	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2250	data => WF_AUTOCANCEL,
2251	signal => $signal,
2252	cb => sub {
2253	cf::cleanup "SIG$signal";	3466	cf::cleanup "SIG$signal";
2254	},
2255	);	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
2256	}	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 $value = uuid_seq uuid_cur;
		3522
		3523	unless ($value) {
		3524	warn "cowardly refusing to write zero uuid value!\n";
		3525	return;
		3526	}
		3527
		3528	my $value = uuid_str $value + $uuid_skip;
		3529	$uuid_skip = 0;
		3530
		3531	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3532	and return;
		3533
		3534	# always fsync - this file is important
		3535	aio_fsync $fh
		3536	and return;
		3537
		3538	close $fh
		3539	or return;
		3540
		3541	aio_rename "$uuid~", $uuid
		3542	and return;
		3543
		3544	warn "uuid file written ($value).\n";
		3545
		3546	1
		3547
		3548	}
		3549
		3550	sub write_uuid($$) {
		3551	my ($skip, $sync) = @_;
		3552
		3553	$sync ? write_uuid_sync $skip
		3554	: async { write_uuid_sync $skip };
2257	}	3555	}
2258		3556
2259	sub emergency_save() {	3557	sub emergency_save() {
2260	my $freeze_guard = cf::freeze_mainloop;	3558	my $freeze_guard = cf::freeze_mainloop;
2261		3559
…		…
2267	# and maps saved/destroyed asynchronously.	3565	# and maps saved/destroyed asynchronously.
2268	warn "begin emergency player save\n";	3566	warn "begin emergency player save\n";
2269	for my $login (keys %cf::PLAYER) {	3567	for my $login (keys %cf::PLAYER) {
2270	my $pl = $cf::PLAYER{$login} or next;	3568	my $pl = $cf::PLAYER{$login} or next;
2271	$pl->valid or next;	3569	$pl->valid or next;
		3570	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2272	$pl->save;	3571	$pl->save;
2273	}	3572	}
2274	warn "end emergency player save\n";	3573	warn "end emergency player save\n";
2275		3574
2276	warn "begin emergency map save\n";	3575	warn "begin emergency map save\n";
…		…
2278	my $map = $cf::MAP{$path} or next;	3577	my $map = $cf::MAP{$path} or next;
2279	$map->valid or next;	3578	$map->valid or next;
2280	$map->save;	3579	$map->save;
2281	}	3580	}
2282	warn "end emergency map save\n";	3581	warn "end emergency map save\n";
		3582
		3583	warn "begin emergency database checkpoint\n";
		3584	BDB::db_env_txn_checkpoint $DB_ENV;
		3585	warn "end emergency database checkpoint\n";
		3586
		3587	warn "begin write uuid\n";
		3588	write_uuid_sync 1;
		3589	warn "end write uuid\n";
2283	};	3590	};
2284		3591
2285	warn "leave emergency perl save\n";	3592	warn "leave emergency perl save\n";
2286	}	3593	}
2287		3594
		3595	sub post_cleanup {
		3596	my ($make_core) = @_;
		3597
		3598	warn Carp::longmess "post_cleanup backtrace"
		3599	if $make_core;
		3600
		3601	my $fh = pidfile;
		3602	unlink $PIDFILE if <$fh> == $$;
		3603	}
		3604
		3605	# a safer delete_package, copied from Symbol
		3606	sub clear_package($) {
		3607	my $pkg = shift;
		3608
		3609	# expand to full symbol table name if needed
		3610	unless ($pkg =~ /^main::.*::$/) {
		3611	$pkg = "main$pkg" if $pkg =~ /^::/;
		3612	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3613	$pkg .= '::' unless $pkg =~ /::$/;
		3614	}
		3615
		3616	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3617	my $stem_symtab = *{$stem}{HASH};
		3618
		3619	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3620	or return;
		3621
		3622	# clear all symbols
		3623	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3624	for my $name (keys %$leaf_symtab) {
		3625	_gv_clear *{"$pkg$name"};
		3626	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3627	}
		3628	warn "cleared package $pkg\n";#d#
		3629	}
		3630
2288	sub reload() {	3631	sub do_reload_perl() {
2289	# can/must only be called in main	3632	# can/must only be called in main
2290	if ($Coro::current != $Coro::main) {	3633	if ($Coro::current != $Coro::main) {
2291	warn "can only reload from main coroutine\n";	3634	warn "can only reload from main coroutine";
2292	return;	3635	return;
2293	}	3636	}
2294		3637
		3638	return if $RELOAD++;
		3639
		3640	while ($RELOAD) {
2295	warn "reloading...";	3641	warn "reloading...";
2296		3642
2297	warn "freezing server";	3643	warn "entering sync_job";
2298	my $guard = freeze_mainloop;	3644
		3645	cf::sync_job {
		3646	cf::write_runtime_sync; # external watchdog should not bark
2299	cf::emergency_save;	3647	cf::emergency_save;
		3648	cf::write_runtime_sync; # external watchdog should not bark
2300		3649
2301	warn "sync database to disk";	3650	warn "syncing database to disk";
2302	cf::db_sync;	3651	BDB::db_env_txn_checkpoint $DB_ENV;
2303	IO::AIO::flush;
2304		3652
2305	eval {
2306	# if anything goes wrong in here, we should simply crash as we already saved	3653	# if anything goes wrong in here, we should simply crash as we already saved
2307		3654
2308	warn "cancel all watchers";	3655	warn "flushing outstanding aio requests";
2309	for (Event::all_watchers) {	3656	while (IO::AIO::nreqs || BDB::nreqs) {
2310	$_->cancel if $_->data & WF_AUTOCANCEL;	3657	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2311	}
2312
2313	warn "cancel all extension coros";
2314	$_->cancel for values %EXT_CORO;
2315	%EXT_CORO = ();
2316
2317	warn "remove commands";
2318	%COMMAND = ();
2319
2320	warn "remove ext commands";
2321	%EXTCMD = ();
2322
2323	warn "unload/nuke all extensions";
2324	for my $pkg (@EXTS) {
2325	warn "... unloading $pkg";
2326
2327	if (my $cb = $pkg->can ("unload")) {
2328	eval {
2329	$cb->($pkg);
2330	1
2331	} or warn "$pkg unloaded, but with errors: $@";
2332	}	3658	}
2333		3659
		3660	warn "cancelling all extension coros";
		3661	$_->cancel for values %EXT_CORO;
		3662	%EXT_CORO = ();
		3663
		3664	warn "removing commands";
		3665	%COMMAND = ();
		3666
		3667	warn "removing ext/exti commands";
		3668	%EXTCMD = ();
		3669	%EXTICMD = ();
		3670
		3671	warn "unloading/nuking all extensions";
		3672	for my $pkg (@EXTS) {
2334	warn "... nuking $pkg";	3673	warn "... unloading $pkg";
2335	Symbol::delete_package $pkg;
2336	}
2337		3674
2338	warn "unload all perl modules loaded from $LIBDIR";
2339	while (my ($k, $v) = each %INC) {
2340	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2341
2342	warn "removing <$k>";
2343	delete $INC{$k};
2344
2345	$k =~ s/\.pm$//;
2346	$k =~ s/\//::/g;
2347
2348	if (my $cb = $k->can ("unload_module")) {	3675	if (my $cb = $pkg->can ("unload")) {
		3676	eval {
2349	$cb->();	3677	$cb->($pkg);
		3678	1
		3679	} or warn "$pkg unloaded, but with errors: $@";
		3680	}
		3681
		3682	warn "... clearing $pkg";
		3683	clear_package $pkg;
2350	}	3684	}
2351		3685
2352	Symbol::delete_package $k;	3686	warn "unloading all perl modules loaded from $LIBDIR";
		3687	while (my ($k, $v) = each %INC) {
		3688	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3689
		3690	warn "... unloading $k";
		3691	delete $INC{$k};
		3692
		3693	$k =~ s/\.pm$//;
		3694	$k =~ s/\//::/g;
		3695
		3696	if (my $cb = $k->can ("unload_module")) {
		3697	$cb->();
		3698	}
		3699
		3700	clear_package $k;
2353	}	3701	}
2354		3702
2355	warn "get rid of safe::, as good as possible";	3703	warn "getting rid of safe::, as good as possible";
2356	Symbol::delete_package "safe::$_"	3704	clear_package "safe::$_"
2357	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3705	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2358		3706
2359	warn "unload cf.pm \"a bit\"";	3707	warn "unloading cf.pm \"a bit\"";
2360	delete $INC{"cf.pm"};	3708	delete $INC{"cf.pm"};
		3709	delete $INC{"cf/pod.pm"};
2361		3710
2362	# don't, removes xs symbols, too,	3711	# don't, removes xs symbols, too,
2363	# and global variables created in xs	3712	# and global variables created in xs
2364	#Symbol::delete_package __PACKAGE__;	3713	#clear_package __PACKAGE__;
2365		3714
		3715	warn "unload completed, starting to reload now";
		3716
2366	warn "reloading cf.pm";	3717	warn "reloading cf.pm";
2367	require cf;	3718	require cf;
2368	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3719	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2369		3720
2370	warn "load config and database again";	3721	warn "loading config and database again";
2371	cf::cfg_load;	3722	cf::reload_config;
2372	cf::db_load;
2373		3723
2374	warn "load extensions";	3724	warn "loading extensions";
2375	cf::load_extensions;	3725	cf::load_extensions;
2376		3726
2377	warn "reattach attachments to objects/players";	3727	warn "reattaching attachments to objects/players";
2378	_global_reattach;	3728	_global_reattach; # objects, sockets
2379	warn "reattach attachments to maps";	3729	warn "reattaching attachments to maps";
2380	reattach $_ for values %MAP;	3730	reattach $_ for values %MAP;
		3731	warn "reattaching attachments to players";
		3732	reattach $_ for values %PLAYER;
		3733
		3734	warn "running post_load";
		3735	(pop @POST_INIT)->(1) while @POST_INIT;
		3736
		3737	warn "leaving sync_job";
		3738
		3739	1
		3740	} or do {
		3741	warn $@;
		3742	cf::cleanup "error while reloading, exiting.";
		3743	};
		3744
		3745	warn "reloaded";
		3746	--$RELOAD;
		3747	}
		3748	};
		3749
		3750	our $RELOAD_WATCHER; # used only during reload
		3751
		3752	sub reload_perl() {
		3753	# doing reload synchronously and two reloads happen back-to-back,
		3754	# coro crashes during coro_state_free->destroy here.
		3755
		3756	$RELOAD_WATCHER ||= EV::timer $TICK * 1.5, 0, sub {
		3757	do_reload_perl;
		3758	undef $RELOAD_WATCHER;
2381	};	3759	};
2382		3760	}
2383	if ($@) {
2384	warn $@;
2385	warn "error while reloading, exiting.";
2386	exit 1;
2387	}
2388
2389	warn "reloaded";
2390	};
2391		3761
2392	register_command "reload" => sub {	3762	register_command "reload" => sub {
2393	my ($who, $arg) = @_;	3763	my ($who, $arg) = @_;
2394		3764
2395	if ($who->flag (FLAG_WIZ)) {	3765	if ($who->flag (FLAG_WIZ)) {
2396	$who->message ("start of reload.");
2397	reload;
2398	$who->message ("end of reload.");	3766	$who->message ("reloading server.");
		3767	async {
		3768	$Coro::current->{desc} = "perl_reload";
		3769	reload_perl;
		3770	};
2399	}	3771	}
2400	};	3772	};
2401		3773
2402	unshift @INC, $LIBDIR;	3774	unshift @INC, $LIBDIR;
2403		3775
2404	$TICK_WATCHER = Event->timer (	3776	my $bug_warning = 0;
2405	reentrant => 0,
2406	prio => 0,
2407	at => $NEXT_TICK || $TICK,
2408	data => WF_AUTOCANCEL,
2409	cb => sub {
2410	$NOW = Event::time;
2411		3777
		3778	our @WAIT_FOR_TICK;
		3779	our @WAIT_FOR_TICK_BEGIN;
		3780
		3781	sub wait_for_tick {
		3782	return if tick_inhibit || $Coro::current == $Coro::main;
		3783
		3784	my $signal = new Coro::Signal;
		3785	push @WAIT_FOR_TICK, $signal;
		3786	$signal->wait;
		3787	}
		3788
		3789	sub wait_for_tick_begin {
		3790	return if tick_inhibit || $Coro::current == $Coro::main;
		3791
		3792	my $signal = new Coro::Signal;
		3793	push @WAIT_FOR_TICK_BEGIN, $signal;
		3794	$signal->wait;
		3795	}
		3796
		3797	sub tick {
		3798	if ($Coro::current != $Coro::main) {
		3799	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3800	unless ++$bug_warning > 10;
		3801	return;
		3802	}
		3803
2412	cf::server_tick; # one server iteration	3804	cf::server_tick; # one server iteration
2413	$RUNTIME += $TICK;
2414	$NEXT_TICK += $TICK;
2415		3805
2416	$WAIT_FOR_TICK->broadcast;	3806	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2417	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3807	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2418		3808	Coro::async_pool {
2419	# if we are delayed by four ticks or more, skip them all	3809	$Coro::current->{desc} = "runtime saver";
2420	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2421
2422	$TICK_WATCHER->at ($NEXT_TICK);
2423	$TICK_WATCHER->start;
2424	},
2425	);
2426
2427	IO::AIO::max_poll_time $TICK * 0.2;
2428
2429	$AIO_POLL_WATCHER = Event->io (
2430	fd => IO::AIO::poll_fileno,
2431	poll => 'r',
2432	prio => 5,
2433	data => WF_AUTOCANCEL,
2434	cb => \&IO::AIO::poll_cb,
2435	);
2436
2437	$WRITE_RUNTIME_WATCHER = Event->timer (
2438	data => WF_AUTOCANCEL,
2439	after => 0,
2440	interval => 10,
2441	cb => sub {
2442	(Coro::unblock_sub {
2443	write_runtime	3810	write_runtime_sync
2444	or warn "ERROR: unable to write runtime file: $!";	3811	or warn "ERROR: unable to write runtime file: $!";
2445	})->();	3812	};
2446	},	3813	}
2447	);	3814
		3815	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3816	$sig->send;
		3817	}
		3818	while (my $sig = shift @WAIT_FOR_TICK) {
		3819	$sig->send;
		3820	}
		3821
		3822	$LOAD = ($NOW - $TICK_START) / $TICK;
		3823	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3824
		3825	if (0) {
		3826	if ($NEXT_TICK) {
		3827	my $jitter = $TICK_START - $NEXT_TICK;
		3828	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3829	warn "jitter $JITTER\n";#d#
		3830	}
		3831	}
		3832	}
		3833
		3834	{
		3835	# configure BDB
		3836
		3837	BDB::min_parallel 8;
		3838	BDB::max_poll_reqs $TICK * 0.1;
		3839	$AnyEvent::BDB::WATCHER->priority (1);
		3840
		3841	unless ($DB_ENV) {
		3842	$DB_ENV = BDB::db_env_create;
		3843	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3844	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3845	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3846	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3847	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3848
		3849	cf::sync_job {
		3850	eval {
		3851	BDB::db_env_open
		3852	$DB_ENV,
		3853	$BDBDIR,
		3854	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3855	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3856	0666;
		3857
		3858	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3859	};
		3860
		3861	cf::cleanup "db_env_open(db): $@" if $@;
		3862	};
		3863	}
		3864
		3865	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3866	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3867	};
		3868	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3869	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3870	};
		3871	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3872	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3873	};
		3874	}
		3875
		3876	{
		3877	# configure IO::AIO
		3878
		3879	IO::AIO::min_parallel 8;
		3880	IO::AIO::max_poll_time $TICK * 0.1;
		3881	undef $AnyEvent::AIO::WATCHER;
		3882	}
		3883
		3884	my $_log_backtrace;
		3885
		3886	sub _log_backtrace {
		3887	my ($msg, @addr) = @_;
		3888
		3889	$msg =~ s/\n//;
		3890
		3891	# limit the # of concurrent backtraces
		3892	if ($_log_backtrace < 2) {
		3893	++$_log_backtrace;
		3894	my $perl_bt = Carp::longmess $msg;
		3895	async {
		3896	$Coro::current->{desc} = "abt $msg";
		3897
		3898	my @bt = fork_call {
		3899	@addr = map { sprintf "%x", $_ } @addr;
		3900	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3901	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3902	or die "addr2line: $!";
		3903
		3904	my @funcs;
		3905	my @res = <$fh>;
		3906	chomp for @res;
		3907	while (@res) {
		3908	my ($func, $line) = splice @res, 0, 2, ();
		3909	push @funcs, "[$func] $line";
		3910	}
		3911
		3912	@funcs
		3913	};
		3914
		3915	LOG llevInfo, "[ABT] $perl_bt\n";
		3916	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3917	LOG llevInfo, "[ABT] $_\n" for @bt;
		3918	--$_log_backtrace;
		3919	};
		3920	} else {
		3921	LOG llevInfo, "[ABT] $msg\n";
		3922	LOG llevInfo, "[ABT] [suppressed]\n";
		3923	}
		3924	}
		3925
		3926	# load additional modules
		3927	use cf::pod;
2448		3928
2449	END { cf::emergency_save }	3929	END { cf::emergency_save }
2450		3930
2451	1	3931	1
2452		3932

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