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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.210 by root, Mon Feb 12 01:32:49 2007 UTC vs.
Revision 1.456 by root, Tue Sep 30 04:00:35 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 3.5 ();	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 ();
20	use BDB ();	52	use BDB ();
21	use Data::Dumper;	53	use Data::Dumper;
22	use Digest::MD5;	54	use Digest::MD5;
23	use Fcntl;	55	use Fcntl;
		56	use YAML ();
24	use IO::AIO 2.32 ();	57	use IO::AIO ();
25	use YAML::Syck ();
26	use Time::HiRes;	58	use Time::HiRes;
27	use Compress::LZF;	59	use Compress::LZF;
		60	use Digest::MD5 ();
28		61
		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";
29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	73	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
30		74
31	use Event; $Event::Eval = 1; # no idea why this is required, but it is
32
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	75	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34
35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
36	$YAML::Syck::ImplicitUnicode = 1;
37
38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
39		76
40	our %COMMAND = ();	77	our %COMMAND = ();
41	our %COMMAND_TIME = ();	78	our %COMMAND_TIME = ();
42		79
43	our @EXTS = (); # list of extension package names	80	our @EXTS = (); # list of extension package names
44	our %EXTCMD = ();	81	our %EXTCMD = ();
		82	our %EXTICMD = ();
45	our %EXT_CORO = (); # coroutines bound to extensions	83	our %EXT_CORO = (); # coroutines bound to extensions
46	our %EXT_MAP = (); # pluggable maps	84	our %EXT_MAP = (); # pluggable maps
47		85
		86	our $RELOAD; # number of reloads so far, non-zero while in reload
48	our @EVENT;	87	our @EVENT;
49	our $LIBDIR = datadir . "/ext";
50		88
51	our $TICK = MAX_TIME * 1e-6;	89	our $CONFDIR = confdir;
52	our $TICK_WATCHER;	90	our $DATADIR = datadir;
53	our $AIO_POLL_WATCHER;	91	our $LIBDIR = "$DATADIR/ext";
54	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
55	our $NEXT_TICK;	107	our $NEXT_TICK;
56	our $NOW;
57	our $USE_FSYNC = 1; # use fsync to write maps - default off	108	our $USE_FSYNC = 1; # use fsync to write maps - default off
58		109
		110	our $BDB_DEADLOCK_WATCHER;
		111	our $BDB_CHECKPOINT_WATCHER;
59	our $BDB_POLL_WATCHER;	112	our $BDB_TRICKLE_WATCHER;
60	our $DB_ENV;	113	our $DB_ENV;
61		114
62	our %CFG;	115	our %CFG;
63		116
64	our $UPTIME; $UPTIME ||= time;	117	our $UPTIME; $UPTIME ||= time;
65	our $RUNTIME;	118	our $RUNTIME;
		119	our $NOW;
66		120
67	our %PLAYER; # all users	121	our (%PLAYER, %PLAYER_LOADING); # all users
68	our %MAP; # all maps	122	our (%MAP, %MAP_LOADING ); # all maps
69	our $LINK_MAP; # the special {link} map, which is always available	123	our $LINK_MAP; # the special {link} map, which is always available
70	our $RANDOM_MAPS = cf::localdir . "/random";
71	our $BDB_ENV_DIR = cf::localdir . "/db";
72
73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
75		124
76	# 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 ∕
77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	126	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
78		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 $TICK_START; # for load detecting purposes
		132
		133	our @POST_INIT;
		134
79	binmode STDOUT;	135	binmode STDOUT;
80	binmode STDERR;	136	binmode STDERR;
81		137
82	# read virtual server time, if available	138	# read virtual server time, if available
83	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	139	unless ($RUNTIME || !-e $RUNTIMEFILE) {
84	open my $fh, "<", cf::localdir . "/runtime"	140	open my $fh, "<", $RUNTIMEFILE
85	or die "unable to read runtime file: $!";	141	or die "unable to read $RUNTIMEFILE file: $!";
86	$RUNTIME = <$fh> + 0.;	142	$RUNTIME = <$fh> + 0.;
87	}	143	}
88		144
89	mkdir cf::localdir;	145	mkdir $_
90	mkdir cf::localdir . "/" . cf::playerdir;	146	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
91	mkdir cf::localdir . "/" . cf::tmpdir;
92	mkdir cf::localdir . "/" . cf::uniquedir;
93	mkdir $RANDOM_MAPS;
94	mkdir $BDB_ENV_DIR;
95		147
96	our $EMERGENCY_POSITION;	148	our $EMERGENCY_POSITION;
97		149
98	sub cf::map::normalise;	150	sub cf::map::normalise;
99		151
…		…
110	=item $cf::RUNTIME	162	=item $cf::RUNTIME
111		163
112	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
113	every server tick.	165	every server tick.
114		166
115	=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
116		170
117	The perl library directory, where extensions and cf-specific modules can	171	Various directories - "/etc", read-only install directory, perl-library
118	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.
119		175
120	=item $cf::NOW	176	=item $cf::NOW
121		177
122	The time of the last (current) server tick.	178	The time of the last (current) server tick.
123		179
124	=item $cf::TICK	180	=item $cf::TICK
125		181
126	The interval between server ticks, in seconds.	182	The interval between server ticks, in seconds.
127		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
128	=item %cf::CFG	194	=item %cf::CFG
129		195
130	Configuration for the server, loaded from C</etc/crossfire/config>, or	196	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
131	from wherever your confdir points to.	197	from wherever your confdir points to.
132		198
133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	199	=item cf::wait_for_tick, cf::wait_for_tick_begin
134		200
135	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
136	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
137	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.
138	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.
139		210
140	=back	211	=back
141		212
142	=cut	213	=cut
143		214
144	BEGIN {	215	BEGIN {
145	*CORE::GLOBAL::warn = sub {	216	*CORE::GLOBAL::warn = sub {
146	my $msg = join "", @_;	217	my $msg = join "", @_;
147	utf8::encode $msg;
148		218
149	$msg .= "\n"	219	$msg .= "\n"
150	unless $msg =~ /\n$/;	220	unless $msg =~ /\n$/;
151		221
		222	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		223
152	LOG llevError, $msg;	224	LOG llevError, $msg;
153	};	225	};
154	}	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#?
155		242
156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	243	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	244	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
158	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	245	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
159	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	246	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
160	@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';
161	@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)
162		250
163	# 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
164	# within the Safe compartment.	252	# within the Safe compartment.
165	for my $pkg (qw(	253	for my $pkg (qw(
166	cf::global cf::attachable	254	cf::global cf::attachable
167	cf::object cf::object::player	255	cf::object cf::object::player
168	cf::client cf::player	256	cf::client cf::player
169	cf::arch cf::living	257	cf::arch cf::living
		258	cf::map cf::mapspace
170	cf::map cf::party cf::region	259	cf::party cf::region
171	)) {	260	)) {
172	no strict 'refs';
173	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	261	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
174	}	262	}
175		263
176	$Event::DIED = sub {	264	$EV::DIED = sub {
177	warn "error in event callback: @_";	265	warn "error in event callback: @_";
178	};	266	};
		267
		268	#############################################################################
179		269
180	=head2 UTILITY FUNCTIONS	270	=head2 UTILITY FUNCTIONS
181		271
182	=over 4	272	=over 4
183		273
…		…
202	$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;
203	$d	293	$d
204	} || "[unable to dump $_[0]: '$@']";	294	} || "[unable to dump $_[0]: '$@']";
205	}	295	}
206		296
207	use JSON::Syck (); # TODO# replace by JSON::PC once working
208
209	=item $ref = cf::from_json $json	297	=item $ref = cf::decode_json $json
210		298
211	Converts a JSON string into the corresponding perl data structure.	299	Converts a JSON string into the corresponding perl data structure.
212		300
213	=cut
214
215	sub from_json($) {
216	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
217	JSON::Syck::Load $_[0]
218	}
219
220	=item $json = cf::to_json $ref	301	=item $json = cf::encode_json $ref
221		302
222	Converts a perl data structure into its JSON representation.	303	Converts a perl data structure into its JSON representation.
223		304
224	=cut	305	=cut
225		306
226	sub to_json($) {	307	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	308
228	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;
229	}	324	}
230		325
231	=item cf::lock_wait $string	326	=item cf::lock_wait $string
232		327
233	Wait until the given lock is available. See cf::lock_acquire.	328	Wait until the given lock is available. See cf::lock_acquire.
…		…
237	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
238	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,
239	for example when the coroutine gets canceled), the lock is automatically	334	for example when the coroutine gets canceled), the lock is automatically
240	returned.	335	returned.
241		336
		337	Locks are *not* recursive, locking from the same coro twice results in a
		338	deadlocked coro.
		339
242	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
243	uses map_find and cf::map::load uses map_load).	341	uses map_find and cf::map::load uses map_load).
244		342
		343	=item $locked = cf::lock_active $string
		344
		345	Return true if the lock is currently active, i.e. somebody has locked it.
		346
245	=cut	347	=cut
246		348
247	our %LOCK;	349	our %LOCK;
		350	our %LOCKER;#d#
248		351
249	sub lock_wait($) {	352	sub lock_wait($) {
250	my ($key) = @_;	353	my ($key) = @_;
251		354
		355	if ($LOCKER{$key} == $Coro::current) {#d#
		356	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		357	return;#d#
		358	}#d#
		359
252	# wait for lock, if any	360	# wait for lock, if any
253	while ($LOCK{$key}) {	361	while ($LOCK{$key}) {
		362	#local $Coro::current->{desc} = "$Coro::current->{desc} <waiting for lock $key>";
254	push @{ $LOCK{$key} }, $Coro::current;	363	push @{ $LOCK{$key} }, $Coro::current;
255	Coro::schedule;	364	Coro::schedule;
256	}	365	}
257	}	366	}
258		367
…		…
261		370
262	# wait, to be sure we are not locked	371	# wait, to be sure we are not locked
263	lock_wait $key;	372	lock_wait $key;
264		373
265	$LOCK{$key} = [];	374	$LOCK{$key} = [];
		375	$LOCKER{$key} = $Coro::current;#d#
266		376
267	Coro::guard {	377	Coro::guard {
		378	delete $LOCKER{$key};#d#
268	# wake up all waiters, to be on the safe side	379	# wake up all waiters, to be on the safe side
269	$_->ready for @{ delete $LOCK{$key} };	380	$_->ready for @{ delete $LOCK{$key} };
270	}	381	}
271	}	382	}
272		383
		384	sub lock_active($) {
		385	my ($key) = @_;
		386
		387	! ! $LOCK{$key}
		388	}
		389
273	sub freeze_mainloop {	390	sub freeze_mainloop {
274	return unless $TICK_WATCHER->is_active;	391	tick_inhibit_inc;
275		392
276	my $guard = Coro::guard {	393	Coro::guard \&tick_inhibit_dec;
277	$TICK_WATCHER->start;	394	}
278	$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($$) {
		404	my ($interval, $cb) = @_;
		405
		406	my $start = rand List::Util::min 180, $interval;
		407
		408	EV::periodic $start, $interval, 0, $cb
		409	}
		410
		411	=item cf::get_slot $time[, $priority[, $name]]
		412
		413	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		414	This call blocks and returns only when you have at least C<$time> seconds
		415	of cpu time till the next tick. The slot is only valid till the next cede.
		416
		417	The optional C<$name> can be used to identify the job to run. It might be
		418	used for statistical purposes and should identify the same time-class.
		419
		420	Useful for short background jobs.
		421
		422	=cut
		423
		424	our @SLOT_QUEUE;
		425	our $SLOT_QUEUE;
		426
		427	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		428	$SLOT_QUEUE = Coro::async {
		429	$Coro::current->desc ("timeslot manager");
		430
		431	my $signal = new Coro::Signal;
		432
		433	while () {
		434	next_job:
		435	my $avail = cf::till_tick;
		436	if ($avail > 0.01) {
		437	for (0 .. $#SLOT_QUEUE) {
		438	if ($SLOT_QUEUE[$_][0] < $avail) {
		439	my $job = splice @SLOT_QUEUE, $_, 1, ();
		440	$job->[2]->send;
		441	Coro::cede;
		442	goto next_job;
		443	}
		444	}
		445	}
		446
		447	if (@SLOT_QUEUE) {
		448	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		449	push @cf::WAIT_FOR_TICK, $signal;
		450	$signal->wait;
		451	} else {
		452	Coro::schedule;
		453	}
279	};	454	}
280	$WRITE_RUNTIME_WATCHER->stop;	455	};
281	$TICK_WATCHER->stop;	456
282	$guard	457	sub get_slot($;$$) {
		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	$sig->wait;
283	}	469	}
284		470
285	=item cf::async { BLOCK }	471	=item cf::async { BLOCK }
286		472
287	Currently the same as Coro::async_pool, meaning you cannot use	473	Currently the same as Coro::async_pool, meaning you cannot use
…		…
292		478
293	BEGIN { *async = \&Coro::async_pool }	479	BEGIN { *async = \&Coro::async_pool }
294		480
295	=item cf::sync_job { BLOCK }	481	=item cf::sync_job { BLOCK }
296		482
297	The design of crossfire+ requires that the main coro ($Coro::main) is	483	The design of Deliantra requires that the main coroutine ($Coro::main)
298	always able to handle events or runnable, as crossfire+ is only partly	484	is always able to handle events or runnable, as Deliantra is only
299	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	485	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		486	acceptable.
300		487
301	If it must be done, put the blocking parts into C<sync_job>. This will run	488	If it must be done, put the blocking parts into C<sync_job>. This will run
302	the given BLOCK in another coroutine while waiting for the result. The	489	the given BLOCK in another coroutine while waiting for the result. The
303	server will be frozen during this time, so the block should either finish	490	server will be frozen during this time, so the block should either finish
304	fast or be very important.	491	fast or be very important.
…		…
307		494
308	sub sync_job(&) {	495	sub sync_job(&) {
309	my ($job) = @_;	496	my ($job) = @_;
310		497
311	if ($Coro::current == $Coro::main) {	498	if ($Coro::current == $Coro::main) {
		499	my $time = EV::time;
		500
312	# this is the main coro, too bad, we have to block	501	# this is the main coro, too bad, we have to block
313	# till the operation succeeds, freezing the server :/	502	# till the operation succeeds, freezing the server :/
314		503
315	# TODO: use suspend/resume instead	504	LOG llevError, Carp::longmess "sync job";#d#
316	# (but this is cancel-safe)	505
317	my $freeze_guard = freeze_mainloop;	506	my $freeze_guard = freeze_mainloop;
318		507
319	my $busy = 1;	508	my $busy = 1;
320	my @res;	509	my @res;
321		510
322	(async {	511	(async {
		512	$Coro::current->desc ("sync job coro");
323	@res = eval { $job->() };	513	@res = eval { $job->() };
324	warn $@ if $@;	514	warn $@ if $@;
325	undef $busy;	515	undef $busy;
326	})->prio (Coro::PRIO_MAX);	516	})->prio (Coro::PRIO_MAX);
327		517
328	while ($busy) {	518	while ($busy) {
329	Coro::cede or Event::one_event;	519	if (Coro::nready) {
		520	Coro::cede_notself;
		521	} else {
		522	EV::loop EV::LOOP_ONESHOT;
330	}	523	}
		524	}
		525
		526	my $time = EV::time - $time;
		527
		528	$TICK_START += $time; # do not account sync jobs to server load
331		529
332	wantarray ? @res : $res[0]	530	wantarray ? @res : $res[0]
333	} else {	531	} else {
334	# we are in another coroutine, how wonderful, everything just works	532	# we are in another coroutine, how wonderful, everything just works
335		533
…		…
355	$EXT_CORO{$coro+0} = $coro;	553	$EXT_CORO{$coro+0} = $coro;
356		554
357	$coro	555	$coro
358	}	556	}
359		557
360	sub write_runtime {	558	=item fork_call { }, $args
361	my $runtime = cf::localdir . "/runtime";
362		559
363	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	560	Executes the given code block with the given arguments in a seperate
364	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.
365		564
366	my $value = $cf::RUNTIME + 90 + 10;	565	=cut
367	# 10 is the runtime save interval, for a monotonic clock
368	# 60 allows for the watchdog to kill the server.
369		566
370	(aio_write $fh, 0, (length $value), $value, 0) <= 0	567	sub fork_call(&@) {
371	and return;	568	my ($cb, @args) = @_;
372		569
373	# always fsync - this file is important	570	# we seemingly have to make a local copy of the whole thing,
374	aio_fsync $fh	571	# otherwise perl prematurely frees the stuff :/
375	and return;	572	# TODO: investigate and fix (likely this will be rather laborious)
376		573
377	close $fh	574	my @res = Coro::Util::fork_eval {
378	or return;	575	reset_signals;
		576	&$cb
		577	}, @args;
379		578
380	aio_rename "$runtime~", $runtime	579	wantarray ? @res : $res[-1]
381	and return;	580	}
382		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($$) {
		651	my $key = "$_[0]/$_[1]";
		652
		653	cf::sync_job {
		654	BDB::db_get $DB, undef, $key, my $data;
		655
		656	$! ? ()
		657	: $data
383	1	658	}
		659	}
		660
		661	sub db_put($$$) {
		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 });
384	}	745	}
385		746
386	=back	747	=back
387		748
388	=cut	749	=cut
389		750
390	#############################################################################	751	#############################################################################
391		752
392	=head2 ATTACHABLE OBJECTS	753	=head2 ATTACHABLE OBJECTS
393		754
394	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
395	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")
396	to it. All such attachable objects support the following methods.	757	to it. All such attachable objects support the following methods.
397		758
398	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>
399	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
400	crossfire+).	761	Deliantra).
401		762
402	=over 4	763	=over 4
403		764
404	=item $attachable->attach ($attachment, key => $value...)	765	=item $attachable->attach ($attachment, key => $value...)
405		766
…		…
449	=item cf::CLASS::attachment $name, ...	810	=item cf::CLASS::attachment $name, ...
450		811
451	Register an attachment by C<$name> through which attachable objects of the	812	Register an attachment by C<$name> through which attachable objects of the
452	given CLASS can refer to this attachment.	813	given CLASS can refer to this attachment.
453		814
454	Some classes such as crossfire maps and objects can specify attachments	815	Some classes such as deliantra maps and objects can specify attachments
455	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.
456		817
457	These calls expect any number of the following handler/hook descriptions:	818	These calls expect any number of the following handler/hook descriptions:
458		819
459	=over 4	820	=over 4
…		…
568	$registry = $CB_TYPE[$object_type] ||= [];	929	$registry = $CB_TYPE[$object_type] ||= [];
569		930
570	} elsif ($type eq "subtype") {	931	} elsif ($type eq "subtype") {
571	defined $object_type or Carp::croak "subtype specified without type";	932	defined $object_type or Carp::croak "subtype specified without type";
572	my $object_subtype = shift @arg;	933	my $object_subtype = shift @arg;
573	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	934	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
574		935
575	} elsif ($type eq "package") {	936	} elsif ($type eq "package") {
576	my $pkg = shift @arg;	937	my $pkg = shift @arg;
577		938
578	while (my ($name, $id) = each %cb_id) {	939	while (my ($name, $id) = each %cb_id) {
…		…
607	_attach $registry, $klass, @attach;	968	_attach $registry, $klass, @attach;
608	}	969	}
609		970
610	$obj->{$name} = \%arg;	971	$obj->{$name} = \%arg;
611	} else {	972	} else {
612	warn "object uses attachment '$name' that is not available, postponing.\n";	973	warn "object uses attachment '$name' which is not available, postponing.\n";
613	}	974	}
614		975
615	$obj->{_attachment}{$name} = undef;	976	$obj->{_attachment}{$name} = undef;
616	}	977	}
617		978
…		…
619	if (ref $_[0]) {	980	if (ref $_[0]) {
620	_object_attach @_;	981	_object_attach @_;
621	} else {	982	} else {
622	_attach shift->_attach_registry, @_;	983	_attach shift->_attach_registry, @_;
623	}	984	}
		985	_recalc_want;
624	};	986	};
625		987
626	# all those should be optimised	988	# all those should be optimised
627	sub cf::attachable::detach {	989	sub cf::attachable::detach {
628	my ($obj, $name) = @_;	990	my ($obj, $name) = @_;
…		…
631	delete $obj->{_attachment}{$name};	993	delete $obj->{_attachment}{$name};
632	reattach ($obj);	994	reattach ($obj);
633	} else {	995	} else {
634	Carp::croak "cannot, currently, detach class attachments";	996	Carp::croak "cannot, currently, detach class attachments";
635	}	997	}
		998	_recalc_want;
636	};	999	};
637		1000
638	sub cf::attachable::attached {	1001	sub cf::attachable::attached {
639	my ($obj, $name) = @_;	1002	my ($obj, $name) = @_;
640		1003
…		…
655	";	1018	";
656	die if $@;	1019	die if $@;
657	}	1020	}
658		1021
659	our $override;	1022	our $override;
660	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?
661		1024
662	sub override {	1025	sub override {
663	$override = 1;	1026	$override = 1;
664	@invoke_results = ();	1027	@INVOKE_RESULTS = (@_);
665	}	1028	}
666		1029
667	sub do_invoke {	1030	sub do_invoke {
668	my $event = shift;	1031	my $event = shift;
669	my $callbacks = shift;	1032	my $callbacks = shift;
670		1033
671	@invoke_results = ();	1034	@INVOKE_RESULTS = ();
672		1035
673	local $override;	1036	local $override;
674		1037
675	for (@$callbacks) {	1038	for (@$callbacks) {
676	eval { &{$_->[1]} };	1039	eval { &{$_->[1]} };
…		…
685	}	1048	}
686		1049
687	0	1050	0
688	}	1051	}
689		1052
690	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1053	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
691		1054
692	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1055	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
693		1056
694	Generate an object-specific event with the given arguments.	1057	Generate an object-specific event with the given arguments.
695		1058
696	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
697	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
698	results (if you must, access C<@cf::invoke_results> directly).	1061	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
699		1062
700	=back	1063	=back
701		1064
702	=cut	1065	=cut
703		1066
704	#############################################################################	1067	#############################################################################
705	# 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, $ob2
		1110	}
706		1111
707	sub reattach {	1112	sub reattach {
708	# basically do the same as instantiate, without calling instantiate	1113	# basically do the same as instantiate, without calling instantiate
709	my ($obj) = @_;	1114	my ($obj) = @_;
710		1115
		1116	# no longer needed after getting rid of delete_package?
711	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
712		1118
713	my $registry = $obj->registry;	1119	my $registry = $obj->registry;
714		1120
715	@$registry = ();	1121	@$registry = ();
716		1122
…		…
731	cf::attachable->attach (	1137	cf::attachable->attach (
732	prio => -1000000,	1138	prio => -1000000,
733	on_instantiate => sub {	1139	on_instantiate => sub {
734	my ($obj, $data) = @_;	1140	my ($obj, $data) = @_;
735		1141
736	$data = from_json $data;	1142	$data = decode_json $data;
737		1143
738	for (@$data) {	1144	for (@$data) {
739	my ($name, $args) = @$_;	1145	my ($name, $args) = @$_;
740		1146
741	$obj->attach ($name, %{$args || {} });	1147	$obj->attach ($name, %{$args || {} });
…		…
757	sub object_freezer_save {	1163	sub object_freezer_save {
758	my ($filename, $rdata, $objs) = @_;	1164	my ($filename, $rdata, $objs) = @_;
759		1165
760	sync_job {	1166	sync_job {
761	if (length $$rdata) {	1167	if (length $$rdata) {
		1168	utf8::decode (my $decname = $filename);
762	warn sprintf "saving %s (%d,%d)\n",	1169	warn sprintf "saving %s (%d,%d)\n",
763	$filename, length $$rdata, scalar @$objs;	1170	$decname, length $$rdata, scalar @$objs;
764		1171
765	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1172	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
766	chmod SAVE_MODE, $fh;	1173	aio_chmod $fh, SAVE_MODE;
767	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1174	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
768	aio_fsync $fh if $cf::USE_FSYNC;	1175	aio_fsync $fh if $cf::USE_FSYNC;
769	close $fh;	1176	aio_close $fh;
770		1177
771	if (@$objs) {	1178	if (@$objs) {
772	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) {
773	chmod SAVE_MODE, $fh;	1180	aio_chmod $fh, SAVE_MODE;
774	my $data = Storable::nfreeze { version => 1, objs => $objs };	1181	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
775	aio_write $fh, 0, (length $data), $data, 0;	1182	aio_write $fh, 0, (length $data), $data, 0;
776	aio_fsync $fh if $cf::USE_FSYNC;	1183	aio_fsync $fh if $cf::USE_FSYNC;
777	close $fh;	1184	aio_close $fh;
778	aio_rename "$filename.pst~", "$filename.pst";	1185	aio_rename "$filename.pst~", "$filename.pst";
779	}	1186	}
780	} else {	1187	} else {
781	aio_unlink "$filename.pst";	1188	aio_unlink "$filename.pst";
782	}	1189	}
783		1190
784	aio_rename "$filename~", $filename;	1191	aio_rename "$filename~", $filename;
		1192
		1193	$filename =~ s%/[^/]+$%%;
		1194	aio_pathsync $filename;
785	} else {	1195	} else {
786	warn "FATAL: $filename~: $!\n";	1196	warn "FATAL: $filename~: $!\n";
787	}	1197	}
788	} else {	1198	} else {
789	aio_unlink $filename;	1199	aio_unlink $filename;
790	aio_unlink "$filename.pst";	1200	aio_unlink "$filename.pst";
791	}	1201	}
792
793	#d##TODO# nuke non .map-files if exist
794	if ($filename =~ s/\.map$//) {
795	aio_unlink $filename;
796	aio_unlink "$filename.pst";
797	}
798	}	1202	};
799	}	1203	}
800		1204
801	sub object_freezer_as_string {	1205	sub object_freezer_as_string {
802	my ($rdata, $objs) = @_;	1206	my ($rdata, $objs) = @_;
803		1207
…		…
808		1212
809	sub object_thawer_load {	1213	sub object_thawer_load {
810	my ($filename) = @_;	1214	my ($filename) = @_;
811		1215
812	my ($data, $av);	1216	my ($data, $av);
813
814	#d#TODO remove .map if file does not exist
815	aio_stat $filename and $filename =~ s/\.map$//;
816		1217
817	(aio_load $filename, $data) >= 0	1218	(aio_load $filename, $data) >= 0
818	or return;	1219	or return;
819		1220
820	unless (aio_stat "$filename.pst") {	1221	unless (aio_stat "$filename.pst") {
821	(aio_load "$filename.pst", $av) >= 0	1222	(aio_load "$filename.pst", $av) >= 0
822	or return;	1223	or return;
		1224
823	$av = eval { (Storable::thaw $av)->{objs} };	1225	my $st = eval { Coro::Storable::thaw $av };
		1226	$av = $st->{objs};
824	}	1227	}
825		1228
		1229	utf8::decode (my $decname = $filename);
826	warn sprintf "loading %s (%d)\n",	1230	warn sprintf "loading %s (%d,%d)\n",
827	$filename, length $data, scalar @{$av || []};#d#	1231	$decname, length $data, scalar @{$av || []};
		1232
828	return ($data, $av);	1233	($data, $av)
829	}	1234	}
		1235
		1236	=head2 COMMAND CALLBACKS
		1237
		1238	=over 4
		1239
		1240	=cut
830		1241
831	#############################################################################	1242	#############################################################################
832	# command handling &c	1243	# command handling &c
833		1244
834	=item cf::register_command $name => \&callback($ob,$args);	1245	=item cf::register_command $name => \&callback($ob,$args);
…		…
847	push @{ $COMMAND{$name} }, [$caller, $cb];	1258	push @{ $COMMAND{$name} }, [$caller, $cb];
848	}	1259	}
849		1260
850	=item cf::register_extcmd $name => \&callback($pl,$packet);	1261	=item cf::register_extcmd $name => \&callback($pl,$packet);
851		1262
852	Register a callbackf ro execution when the client sends an extcmd packet.	1263	Register a callback for execution when the client sends an (synchronous)
		1264	extcmd packet. Ext commands will be processed in the order they are
		1265	received by the server, like other user commands. The first argument is
		1266	the logged-in player. Ext commands can only be processed after a player
		1267	has logged in successfully.
853		1268
854	If the callback returns something, it is sent back as if reply was being	1269	If the callback returns something, it is sent back as if reply was being
855	called.	1270	called.
856		1271
		1272	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1273
		1274	Register a callback for execution when the client sends an (asynchronous)
		1275	exticmd packet. Exti commands are processed by the server as soon as they
		1276	are received, i.e. out of order w.r.t. other commands. The first argument
		1277	is a client socket. Exti commands can be received anytime, even before
		1278	log-in.
		1279
		1280	If the callback returns something, it is sent back as if reply was being
		1281	called.
		1282
857	=cut	1283	=cut
858		1284
859	sub register_extcmd {	1285	sub register_extcmd {
860	my ($name, $cb) = @_;	1286	my ($name, $cb) = @_;
861		1287
862	$EXTCMD{$name} = $cb;	1288	$EXTCMD{$name} = $cb;
		1289	}
		1290
		1291	sub register_exticmd {
		1292	my ($name, $cb) = @_;
		1293
		1294	$EXTICMD{$name} = $cb;
863	}	1295	}
864		1296
865	cf::player->attach (	1297	cf::player->attach (
866	on_command => sub {	1298	on_command => sub {
867	my ($pl, $name, $params) = @_;	1299	my ($pl, $name, $params) = @_;
…		…
876	cf::override;	1308	cf::override;
877	},	1309	},
878	on_extcmd => sub {	1310	on_extcmd => sub {
879	my ($pl, $buf) = @_;	1311	my ($pl, $buf) = @_;
880		1312
881	my $msg = eval { from_json $buf };	1313	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
882		1314
883	if (ref $msg) {	1315	if (ref $msg) {
		1316	my ($type, $reply, @payload) =
		1317	"ARRAY" eq ref $msg
		1318	? @$msg
		1319	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1320
		1321	my @reply;
		1322
884	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1323	if (my $cb = $EXTCMD{$type}) {
885	if (my %reply = $cb->($pl, $msg)) {	1324	@reply = $cb->($pl, @payload);
886	$pl->ext_reply ($msg->{msgid}, %reply);
887	}
888	}	1325	}
		1326
		1327	$pl->ext_reply ($reply, @reply)
		1328	if $reply;
		1329
889	} else {	1330	} else {
890	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1331	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
891	}	1332	}
892		1333
893	cf::override;	1334	cf::override;
894	},	1335	},
895	);	1336	);
896		1337
897	sub load_extension {
898	my ($path) = @_;
899
900	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
901	my $base = $1;
902	my $pkg = $1;
903	$pkg =~ s/[^[:word:]]/_/g;
904	$pkg = "ext::$pkg";
905
906	warn "... loading '$path' into '$pkg'\n";
907
908	open my $fh, "<:utf8", $path
909	or die "$path: $!";
910
911	my $source =
912	"package $pkg; use strict; use utf8;\n"
913	. "#line 1 \"$path\"\n{\n"
914	. (do { local $/; <$fh> })
915	. "\n};\n1";
916
917	unless (eval $source) {
918	my $msg = $@ ? "$path: $@\n"
919	: "extension disabled.\n";
920	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
921	warn $@;
922	warn "mandatory extension failed to load, exiting.\n";
923	exit 1;
924	}
925	die $@;
926	}
927
928	push @EXTS, $pkg;
929	}
930
931	sub load_extensions {	1338	sub load_extensions {
		1339	cf::sync_job {
		1340	my %todo;
		1341
932	for my $ext (<$LIBDIR/*.ext>) {	1342	for my $path (<$LIBDIR/*.ext>) {
933	next unless -r $ext;	1343	next unless -r $path;
934	eval {	1344
935	load_extension $ext;	1345	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1346	my $base = $1;
		1347	my $pkg = $1;
		1348	$pkg =~ s/[^[:word:]]/_/g;
		1349	$pkg = "ext::$pkg";
		1350
		1351	open my $fh, "<:utf8", $path
		1352	or die "$path: $!";
		1353
		1354	my $source = do { local $/; <$fh> };
		1355
		1356	my %ext = (
		1357	path => $path,
		1358	base => $base,
		1359	pkg => $pkg,
		1360	);
		1361
		1362	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1363	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1364
		1365	$ext{source} =
		1366	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1367	. "#line 1 \"$path\"\n{\n"
		1368	. $source
		1369	. "\n};\n1";
		1370
		1371	$todo{$base} = \%ext;
		1372	}
		1373
		1374	my %done;
		1375	while (%todo) {
		1376	my $progress;
		1377
		1378	while (my ($k, $v) = each %todo) {
		1379	for (split /,\s*/, $v->{meta}{depends}) {
		1380	goto skip
		1381	unless exists $done{$_};
		1382	}
		1383
		1384	warn "... loading '$k' into '$v->{pkg}'\n";
		1385
		1386	unless (eval $v->{source}) {
		1387	my $msg = $@ ? "$v->{path}: $@\n"
		1388	: "$v->{base}: extension inactive.\n";
		1389
		1390	if (exists $v->{meta}{mandatory}) {
		1391	warn $msg;
		1392	cf::cleanup "mandatory extension failed to load, exiting.";
		1393	}
		1394
		1395	warn $msg;
		1396	}
		1397
		1398	$done{$k} = delete $todo{$k};
		1399	push @EXTS, $v->{pkg};
		1400	$progress = 1;
936	1	1401	}
937	} or warn "$ext not loaded: $@";	1402
		1403	skip:
		1404	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1405	unless $progress;
		1406	}
938	}	1407	};
939	}	1408	}
940		1409
941	#############################################################################	1410	#############################################################################
942		1411
		1412	=back
		1413
943	=head2 CORE EXTENSIONS	1414	=head2 CORE EXTENSIONS
944		1415
945	Functions and methods that extend core crossfire objects.	1416	Functions and methods that extend core deliantra objects.
946		1417
947	=cut	1418	=cut
948		1419
949	package cf::player;	1420	package cf::player;
950		1421
…		…
952		1423
953	=head3 cf::player	1424	=head3 cf::player
954		1425
955	=over 4	1426	=over 4
956		1427
		1428	=item cf::player::num_playing
		1429
		1430	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1431
		1432	=cut
		1433
		1434	sub num_playing {
		1435	scalar grep
		1436	$_->ob->map
		1437	&& !$_->hidden
		1438	&& !$_->ob->flag (cf::FLAG_WIZ),
		1439	cf::player::list
		1440	}
		1441
957	=item cf::player::find $login	1442	=item cf::player::find $login
958		1443
959	Returns the given player object, loading it if necessary (might block).	1444	Returns the given player object, loading it if necessary (might block).
960		1445
961	=cut	1446	=cut
962		1447
963	sub playerdir($) {	1448	sub playerdir($) {
964	cf::localdir	1449	"$PLAYERDIR/"
965	. "/"
966	. cf::playerdir
967	. "/"
968	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1450	. (ref $_[0] ? $_[0]->ob->name : $_[0])
969	}	1451	}
970		1452
971	sub path($) {	1453	sub path($) {
972	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1454	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
973		1455
974	(playerdir $login) . "/$login.pl"	1456	(playerdir $login) . "/playerdata"
975	}	1457	}
976		1458
977	sub find_active($) {	1459	sub find_active($) {
978	$cf::PLAYER{$_[0]}	1460	$cf::PLAYER{$_[0]}
979	and $cf::PLAYER{$_[0]}->active	1461	and $cf::PLAYER{$_[0]}->active
…		…
982		1464
983	sub exists($) {	1465	sub exists($) {
984	my ($login) = @_;	1466	my ($login) = @_;
985		1467
986	$cf::PLAYER{$login}	1468	$cf::PLAYER{$login}
987	or cf::sync_job { !aio_stat path $login }	1469	or !aio_stat path $login
988	}	1470	}
989		1471
990	sub find($) {	1472	sub find($) {
991	return $cf::PLAYER{$_[0]} || do {	1473	return $cf::PLAYER{$_[0]} || do {
992	my $login = $_[0];	1474	my $login = $_[0];
993		1475
994	my $guard = cf::lock_acquire "user_find:$login";	1476	my $guard = cf::lock_acquire "user_find:$login";
995		1477
996	$cf::PLAYER{$_[0]} || do {	1478	$cf::PLAYER{$_[0]} || do {
997	my $pl = load_pl path $login	1479	# rename old playerfiles to new ones
		1480	#TODO: remove when no longer required
		1481	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1482	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1483	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1484	aio_unlink +(playerdir $login) . "/$login.pl";
		1485
		1486	my $f = new_from_file cf::object::thawer path $login
998	or return;	1487	or return;
		1488
		1489	my $pl = cf::player::load_pl $f
		1490	or return;
		1491
		1492	local $cf::PLAYER_LOADING{$login} = $pl;
		1493	$f->resolve_delayed_derefs;
999	$cf::PLAYER{$login} = $pl	1494	$cf::PLAYER{$login} = $pl
1000	}	1495	}
1001	}	1496	}
1002	}	1497	}
1003		1498
…		…
1012	return if $pl->{deny_save};	1507	return if $pl->{deny_save};
1013		1508
1014	aio_mkdir playerdir $pl, 0770;	1509	aio_mkdir playerdir $pl, 0770;
1015	$pl->{last_save} = $cf::RUNTIME;	1510	$pl->{last_save} = $cf::RUNTIME;
1016		1511
		1512	cf::get_slot 0.01;
		1513
1017	$pl->save_pl ($path);	1514	$pl->save_pl ($path);
1018	Coro::cede;	1515	cf::cede_to_tick;
1019	}	1516	}
1020		1517
1021	sub new($) {	1518	sub new($) {
1022	my ($login) = @_;	1519	my ($login) = @_;
1023		1520
…		…
1029	$cf::PLAYER{$login} = $self;	1526	$cf::PLAYER{$login} = $self;
1030		1527
1031	$self	1528	$self
1032	}	1529	}
1033		1530
		1531	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1532
		1533	=cut
		1534
		1535	sub send_msg {
		1536	my $ns = shift->ns
		1537	or return;
		1538	$ns->send_msg (@_);
		1539	}
		1540
1034	=item $pl->quit_character	1541	=item $pl->quit_character
1035		1542
1036	Nukes the player without looking back. If logged in, the connection will	1543	Nukes the player without looking back. If logged in, the connection will
1037	be destroyed. May block for a long time.	1544	be destroyed. May block for a long time.
1038		1545
1039	=cut	1546	=cut
1040		1547
1041	sub quit_character {	1548	sub quit_character {
1042	my ($pl) = @_;	1549	my ($pl) = @_;
1043		1550
		1551	my $name = $pl->ob->name;
		1552
1044	$pl->{deny_save} = 1;	1553	$pl->{deny_save} = 1;
1045	$pl->password ("*"); # this should lock out the player until we nuked the dir	1554	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1046		1555
1047	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1556	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1048	$pl->deactivate;	1557	$pl->deactivate;
		1558	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1559	$pl->ob->check_score;
1049	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1560	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1050	$pl->ns->destroy if $pl->ns;	1561	$pl->ns->destroy if $pl->ns;
1051		1562
1052	my $path = playerdir $pl;	1563	my $path = playerdir $pl;
1053	my $temp = "$path~$cf::RUNTIME~deleting~";	1564	my $temp = "$path~$cf::RUNTIME~deleting~";
1054	aio_rename $path, $temp;	1565	aio_rename $path, $temp;
1055	delete $cf::PLAYER{$pl->ob->name};	1566	delete $cf::PLAYER{$pl->ob->name};
1056	$pl->destroy;	1567	$pl->destroy;
		1568
		1569	my $prefix = qr<^~\Q$name\E/>;
		1570
		1571	# nuke player maps
		1572	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1573
1057	IO::AIO::aio_rmtree $temp;	1574	IO::AIO::aio_rmtree $temp;
		1575	}
		1576
		1577	=item $pl->kick
		1578
		1579	Kicks a player out of the game. This destroys the connection.
		1580
		1581	=cut
		1582
		1583	sub kick {
		1584	my ($pl, $kicker) = @_;
		1585
		1586	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1587	$pl->killer ("kicked");
		1588	$pl->ns->destroy;
1058	}	1589	}
1059		1590
1060	=item cf::player::list_logins	1591	=item cf::player::list_logins
1061		1592
1062	Returns am arrayref of all valid playernames in the system, can take a	1593	Returns am arrayref of all valid playernames in the system, can take a
1063	while and may block, so not sync_job-capable, ever.	1594	while and may block, so not sync_job-capable, ever.
1064		1595
1065	=cut	1596	=cut
1066		1597
1067	sub list_logins {	1598	sub list_logins {
1068	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1599	my $dirs = aio_readdir $PLAYERDIR
1069	or return [];	1600	or return [];
1070		1601
1071	my @logins;	1602	my @logins;
1072		1603
1073	for my $login (@$dirs) {	1604	for my $login (@$dirs) {
		1605	my $path = path $login;
		1606
		1607	# a .pst is a dead give-away for a valid player
		1608	# if no pst file found, open and chekc for blocked users
		1609	if (aio_stat "$path.pst") {
1074	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1610	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1075	aio_read $fh, 0, 512, my $buf, 0 or next;	1611	aio_read $fh, 0, 512, my $buf, 0 or next;
1076	$buf !~ /^password -------------$/m or next; # official not-valid tag	1612	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1613	}
1077		1614
1078	utf8::decode $login;	1615	utf8::decode $login;
1079	push @logins, $login;	1616	push @logins, $login;
1080	}	1617	}
1081		1618
…		…
1108	}	1645	}
1109		1646
1110	\@paths	1647	\@paths
1111	}	1648	}
1112		1649
		1650	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1651
		1652	Expand deliantra pod fragments into protocol xml.
		1653
1113	=item $player->ext_reply ($msgid, $msgtype, %msg)	1654	=item $player->ext_reply ($msgid, @msg)
1114		1655
1115	Sends an ext reply to the player.	1656	Sends an ext reply to the player.
1116		1657
1117	=cut	1658	=cut
1118		1659
1119	sub ext_reply($$$%) {	1660	sub ext_reply($$@) {
1120	my ($self, $id, %msg) = @_;	1661	my ($self, $id, @msg) = @_;
1121		1662
1122	$msg{msgid} = $id;	1663	$self->ns->ext_reply ($id, @msg)
1123
1124	$self->send ("ext " . cf::to_json \%msg);
1125	}	1664	}
1126		1665
1127	package cf;	1666	=item $player->ext_msg ($type, @msg)
		1667
		1668	Sends an ext event to the client.
		1669
		1670	=cut
		1671
		1672	sub ext_msg($$@) {
		1673	my ($self, $type, @msg) = @_;
		1674
		1675	$self->ns->ext_msg ($type, @msg);
		1676	}
		1677
		1678	=head3 cf::region
		1679
		1680	=over 4
		1681
		1682	=cut
		1683
		1684	package cf::region;
		1685
		1686	=item cf::region::find_by_path $path
		1687
		1688	Tries to decuce the likely region for a map knowing only its path.
		1689
		1690	=cut
		1691
		1692	sub find_by_path($) {
		1693	my ($path) = @_;
		1694
		1695	my ($match, $specificity);
		1696
		1697	for my $region (list) {
		1698	if ($region->{match} && $path =~ $region->{match}) {
		1699	($match, $specificity) = ($region, $region->specificity)
		1700	if $region->specificity > $specificity;
		1701	}
		1702	}
		1703
		1704	$match
		1705	}
1128		1706
1129	=back	1707	=back
1130
1131		1708
1132	=head3 cf::map	1709	=head3 cf::map
1133		1710
1134	=over 4	1711	=over 4
1135		1712
…		…
1147	our $MAX_RESET = 3600;	1724	our $MAX_RESET = 3600;
1148	our $DEFAULT_RESET = 3000;	1725	our $DEFAULT_RESET = 3000;
1149		1726
1150	sub generate_random_map {	1727	sub generate_random_map {
1151	my ($self, $rmp) = @_;	1728	my ($self, $rmp) = @_;
		1729
		1730	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1731
1152	# mit "rum" bekleckern, nicht	1732	# mit "rum" bekleckern, nicht
1153	$self->_create_random_map (	1733	$self->_create_random_map (
1154	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1734	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1155	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1735	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1156	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1736	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1190	my ($self, $merge) = @_;	1770	my ($self, $merge) = @_;
1191		1771
1192	# we have to keep some variables in memory intact	1772	# we have to keep some variables in memory intact
1193	local $self->{path};	1773	local $self->{path};
1194	local $self->{load_path};	1774	local $self->{load_path};
1195	local $self->{deny_save};
1196	local $self->{deny_reset};
1197		1775
1198	$self->SUPER::thawer_merge ($merge);	1776	$self->SUPER::thawer_merge ($merge);
1199	}	1777	}
1200		1778
1201	sub normalise {	1779	sub normalise {
…		…
1248	$self->init; # pass $1 etc.	1826	$self->init; # pass $1 etc.
1249	return $self;	1827	return $self;
1250	}	1828	}
1251	}	1829	}
1252		1830
1253	Carp::carp "unable to resolve path '$path' (base '$base').";	1831	Carp::cluck "unable to resolve path '$path' (base '$base').";
1254	()	1832	()
1255	}	1833	}
1256		1834
1257	sub init {	1835	sub init {
1258	my ($self) = @_;	1836	my ($self) = @_;
…		…
1273		1851
1274	# the original (read-only) location	1852	# the original (read-only) location
1275	sub load_path {	1853	sub load_path {
1276	my ($self) = @_;	1854	my ($self) = @_;
1277		1855
1278	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1856	"$MAPDIR/$self->{path}.map"
1279	}	1857	}
1280		1858
1281	# the temporary/swap location	1859	# the temporary/swap location
1282	sub save_path {	1860	sub save_path {
1283	my ($self) = @_;	1861	my ($self) = @_;
1284		1862
1285	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1863	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1286	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1864	"$TMPDIR/$path.map"
1287	}	1865	}
1288		1866
1289	# the unique path, undef == no special unique path	1867	# the unique path, undef == no special unique path
1290	sub uniq_path {	1868	sub uniq_path {
1291	my ($self) = @_;	1869	my ($self) = @_;
1292		1870
1293	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1871	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1294	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1872	"$UNIQUEDIR/$path"
1295	}	1873	}
1296		1874
1297	# and all this just because we cannot iterate over	1875	# and all this just because we cannot iterate over
1298	# all maps in C++...	1876	# all maps in C++...
1299	sub change_all_map_light {	1877	sub change_all_map_light {
…		…
1301		1879
1302	$_->change_map_light ($change)	1880	$_->change_map_light ($change)
1303	for grep $_->outdoor, values %cf::MAP;	1881	for grep $_->outdoor, values %cf::MAP;
1304	}	1882	}
1305		1883
		1884	sub decay_objects {
		1885	my ($self) = @_;
		1886
		1887	return if $self->{deny_reset};
		1888
		1889	$self->do_decay_objects;
		1890	}
		1891
1306	sub unlink_save {	1892	sub unlink_save {
1307	my ($self) = @_;	1893	my ($self) = @_;
1308		1894
1309	utf8::encode (my $save = $self->save_path);	1895	utf8::encode (my $save = $self->save_path);
1310	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1896	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1311	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1897	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1312
1313	#d#TODO remove .map and also nuke
1314	$save =~ s/\.map// or return;#d#
1315	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1316	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1317	}	1898	}
1318		1899
1319	sub load_header_from($) {	1900	sub load_header_from($) {
1320	my ($self, $path) = @_;	1901	my ($self, $path) = @_;
1321		1902
1322	utf8::encode $path;	1903	utf8::encode $path;
1323	#aio_open $path, O_RDONLY, 0	1904	my $f = new_from_file cf::object::thawer $path
1324	# or return;
1325
1326	$self->_load_header ($path)
1327	or return;	1905	or return;
		1906
		1907	$self->_load_header ($f)
		1908	or return;
		1909
		1910	local $MAP_LOADING{$self->{path}} = $self;
		1911	$f->resolve_delayed_derefs;
1328		1912
1329	$self->{load_path} = $path;	1913	$self->{load_path} = $path;
1330		1914
1331	1	1915	1
1332	}	1916	}
…		…
1371	$self->load_header_orig	1955	$self->load_header_orig
1372	or return;	1956	or return;
1373	$self->prepare_orig;	1957	$self->prepare_orig;
1374	}	1958	}
1375		1959
		1960	$self->{deny_reset} = 1
		1961	if $self->no_reset;
		1962
		1963	$self->default_region (cf::region::find_by_path $self->{path})
		1964	unless $self->default_region;
		1965
1376	1	1966	1
1377	}	1967	}
1378		1968
1379	sub find;	1969	sub find;
1380	sub find {	1970	sub find {
1381	my ($path, $origin) = @_;	1971	my ($path, $origin) = @_;
1382		1972
1383	$path = normalise $path, $origin && $origin->path;	1973	$path = normalise $path, $origin && $origin->path;
1384		1974
		1975	cf::lock_wait "map_data:$path";#d#remove
1385	cf::lock_wait "map_find:$path";	1976	cf::lock_wait "map_find:$path";
1386		1977
1387	$cf::MAP{$path} || do {	1978	$cf::MAP{$path} || do {
		1979	my $guard1 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1388	my $guard = cf::lock_acquire "map_find:$path";	1980	my $guard2 = cf::lock_acquire "map_find:$path";
		1981
1389	my $map = new_from_path cf::map $path	1982	my $map = new_from_path cf::map $path
1390	or return;	1983	or return;
1391		1984
1392	$map->{last_save} = $cf::RUNTIME;	1985	$map->{last_save} = $cf::RUNTIME;
1393		1986
1394	$map->load_header	1987	$map->load_header
1395	or return;	1988	or return;
1396		1989
1397	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1990	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1398	# doing this can freeze the server in a sync job, obviously	1991	# doing this can freeze the server in a sync job, obviously
1399	#$cf::WAIT_FOR_TICK->wait;	1992	#$cf::WAIT_FOR_TICK->wait;
		1993	undef $guard2;
		1994	undef $guard1;
1400	$map->reset;	1995	$map->reset;
1401	undef $guard;
1402	return find $path;	1996	return find $path;
1403	}	1997	}
1404		1998
1405	$cf::MAP{$path} = $map	1999	$cf::MAP{$path} = $map
1406	}	2000	}
…		…
1413	my ($self) = @_;	2007	my ($self) = @_;
1414		2008
1415	local $self->{deny_reset} = 1; # loading can take a long time	2009	local $self->{deny_reset} = 1; # loading can take a long time
1416		2010
1417	my $path = $self->{path};	2011	my $path = $self->{path};
		2012
		2013	{
1418	my $guard = cf::lock_acquire "map_load:$path";	2014	my $guard = cf::lock_acquire "map_data:$path";
1419		2015
		2016	return unless $self->valid;
1420	return if $self->in_memory != cf::MAP_SWAPPED;	2017	return unless $self->in_memory == cf::MAP_SWAPPED;
1421		2018
1422	$self->in_memory (cf::MAP_LOADING);	2019	$self->in_memory (cf::MAP_LOADING);
1423		2020
1424	$self->alloc;	2021	$self->alloc;
1425		2022
1426	$self->pre_load;	2023	$self->pre_load;
		2024	cf::cede_to_tick;
1427		2025
1428	$self->_load_objects ($self->{load_path}, 1)	2026	my $f = new_from_file cf::object::thawer $self->{load_path};
		2027	$f->skip_block;
		2028	$self->_load_objects ($f)
1429	or return;	2029	or return;
1430		2030
1431	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2031	$self->post_load_original
1432	if delete $self->{load_original};	2032	if delete $self->{load_original};
1433		2033
1434	if (my $uniq = $self->uniq_path) {	2034	if (my $uniq = $self->uniq_path) {
1435	utf8::encode $uniq;	2035	utf8::encode $uniq;
1436	if (aio_open $uniq, O_RDONLY, 0) {	2036	unless (aio_stat $uniq) {
		2037	if (my $f = new_from_file cf::object::thawer $uniq) {
1437	$self->clear_unique_items;	2038	$self->clear_unique_items;
1438	$self->_load_objects ($uniq, 0);	2039	$self->_load_objects ($f);
		2040	$f->resolve_delayed_derefs;
		2041	}
1439	}	2042	}
1440	}	2043	}
1441		2044
1442	Coro::cede;	2045	$f->resolve_delayed_derefs;
1443		2046
		2047	cf::cede_to_tick;
1444	# now do the right thing for maps	2048	# now do the right thing for maps
1445	$self->link_multipart_objects;	2049	$self->link_multipart_objects;
1446
1447	unless ($self->{deny_activate}) {
1448	$self->decay_objects;
1449	$self->fix_auto_apply;
1450	$self->update_buttons;
1451	Coro::cede;
1452	$self->set_darkness_map;
1453	$self->difficulty ($self->estimate_difficulty)	2050	$self->difficulty ($self->estimate_difficulty)
1454	unless $self->difficulty;	2051	unless $self->difficulty;
1455	Coro::cede;	2052	cf::cede_to_tick;
		2053
		2054	unless ($self->{deny_activate}) {
		2055	$self->decay_objects;
		2056	$self->fix_auto_apply;
		2057	$self->update_buttons;
		2058	cf::cede_to_tick;
		2059	$self->set_darkness_map;
		2060	cf::cede_to_tick;
1456	$self->activate;	2061	$self->activate;
		2062	}
		2063
		2064	$self->{last_save} = $cf::RUNTIME;
		2065	$self->last_access ($cf::RUNTIME);
		2066
		2067	$self->in_memory (cf::MAP_ACTIVE);
1457	}	2068	}
1458		2069
1459	$self->post_load;	2070	$self->post_load;
1460
1461	$self->in_memory (cf::MAP_IN_MEMORY);
1462	}	2071	}
1463		2072
1464	sub customise_for {	2073	sub customise_for {
1465	my ($self, $ob) = @_;	2074	my ($self, $ob) = @_;
1466		2075
1467	return find "~" . $ob->name . "/" . $self->{path}	2076	return find "~" . $ob->name . "/" . $self->{path}
1468	if $self->per_player;	2077	if $self->per_player;
1469		2078
		2079	# return find "?party/" . $ob->name . "/" . $self->{path}
		2080	# if $self->per_party;
		2081
1470	$self	2082	$self
1471	}	2083	}
1472		2084
1473	# find and load all maps in the 3x3 area around a map	2085	# find and load all maps in the 3x3 area around a map
1474	sub load_diag {	2086	sub load_neighbours {
1475	my ($map) = @_;	2087	my ($map) = @_;
1476		2088
1477	my @diag; # diagonal neighbours	2089	my @neigh; # diagonal neighbours
1478		2090
1479	for (0 .. 3) {	2091	for (0 .. 3) {
1480	my $neigh = $map->tile_path ($_)	2092	my $neigh = $map->tile_path ($_)
1481	or next;	2093	or next;
1482	$neigh = find $neigh, $map	2094	$neigh = find $neigh, $map
1483	or next;	2095	or next;
1484	$neigh->load;	2096	$neigh->load;
1485		2097
		2098	push @neigh,
1486	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2099	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1487	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2100	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1488	}	2101	}
1489		2102
1490	for (@diag) {	2103	for (grep defined $_->[0], @neigh) {
		2104	my ($path, $origin) = @$_;
1491	my $neigh = find @$_	2105	my $neigh = find $path, $origin
1492	or next;	2106	or next;
1493	$neigh->load;	2107	$neigh->load;
1494	}	2108	}
1495	}	2109	}
1496		2110
…		…
1501	}	2115	}
1502		2116
1503	sub do_load_sync {	2117	sub do_load_sync {
1504	my ($map) = @_;	2118	my ($map) = @_;
1505		2119
		2120	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2121	if $Coro::current == $Coro::main;
		2122
1506	cf::sync_job { $map->load };	2123	cf::sync_job { $map->load };
1507	}	2124	}
1508		2125
1509	our %MAP_PREFETCH;	2126	our %MAP_PREFETCH;
1510	our $MAP_PREFETCHER = undef;	2127	our $MAP_PREFETCHER = undef;
1511		2128
1512	sub find_async {	2129	sub find_async {
1513	my ($path, $origin) = @_;	2130	my ($path, $origin, $load) = @_;
1514		2131
1515	$path = normalise $path, $origin && $origin->{path};	2132	$path = normalise $path, $origin && $origin->{path};
1516		2133
1517	if (my $map = $cf::MAP{$path}) {	2134	if (my $map = $cf::MAP{$path}) {
1518	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2135	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1519	}	2136	}
1520		2137
1521	undef $MAP_PREFETCH{$path};	2138	$MAP_PREFETCH{$path} |= $load;
		2139
1522	$MAP_PREFETCHER ||= cf::async {	2140	$MAP_PREFETCHER ||= cf::async {
		2141	$Coro::current->{desc} = "map prefetcher";
		2142
1523	while (%MAP_PREFETCH) {	2143	while (%MAP_PREFETCH) {
1524	for my $path (keys %MAP_PREFETCH) {	2144	while (my ($k, $v) = each %MAP_PREFETCH) {
1525	my $map = find $path	2145	if (my $map = find $k) {
1526	or next;
1527	$map->load;	2146	$map->load if $v;
		2147	}
1528		2148
1529	delete $MAP_PREFETCH{$path};	2149	delete $MAP_PREFETCH{$k};
1530	}	2150	}
1531	}	2151	}
1532	undef $MAP_PREFETCHER;	2152	undef $MAP_PREFETCHER;
1533	};	2153	};
1534	$MAP_PREFETCHER->prio (6);	2154	$MAP_PREFETCHER->prio (6);
…		…
1537	}	2157	}
1538		2158
1539	sub save {	2159	sub save {
1540	my ($self) = @_;	2160	my ($self) = @_;
1541		2161
1542	my $lock = cf::lock_acquire "map_data:" . $self->path;	2162	my $lock = cf::lock_acquire "map_data:$self->{path}";
1543		2163
1544	$self->{last_save} = $cf::RUNTIME;	2164	$self->{last_save} = $cf::RUNTIME;
1545		2165
1546	return unless $self->dirty;	2166	return unless $self->dirty;
1547		2167
…		…
1553	return if $self->{deny_save};	2173	return if $self->{deny_save};
1554		2174
1555	local $self->{last_access} = $self->last_access;#d#	2175	local $self->{last_access} = $self->last_access;#d#
1556		2176
1557	cf::async {	2177	cf::async {
		2178	$Coro::current->{desc} = "map player save";
1558	$_->contr->save for $self->players;	2179	$_->contr->save for $self->players;
1559	};	2180	};
		2181
		2182	cf::get_slot 0.02;
1560		2183
1561	if ($uniq) {	2184	if ($uniq) {
1562	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2185	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1563	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2186	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1564	} else {	2187	} else {
…		…
1570	my ($self) = @_;	2193	my ($self) = @_;
1571		2194
1572	# save first because save cedes	2195	# save first because save cedes
1573	$self->save;	2196	$self->save;
1574		2197
1575	my $lock = cf::lock_acquire "map_data:" . $self->path;	2198	my $lock = cf::lock_acquire "map_data:$self->{path}";
1576		2199
1577	return if $self->players;	2200	return if $self->players;
1578	return if $self->in_memory != cf::MAP_IN_MEMORY;	2201	return if $self->in_memory != cf::MAP_ACTIVE;
1579	return if $self->{deny_save};	2202	return if $self->{deny_save};
1580		2203
		2204	$self->in_memory (cf::MAP_SWAPPED);
		2205
		2206	$self->deactivate;
		2207	$_->clear_links_to ($self) for values %cf::MAP;
1581	$self->clear;	2208	$self->clear;
1582	$self->in_memory (cf::MAP_SWAPPED);
1583	}	2209	}
1584		2210
1585	sub reset_at {	2211	sub reset_at {
1586	my ($self) = @_;	2212	my ($self) = @_;
1587		2213
1588	# TODO: safety, remove and allow resettable per-player maps	2214	# TODO: safety, remove and allow resettable per-player maps
1589	return 1e99 if $self->isa ("ext::map_per_player");#d#
1590	return 1e99 if $self->{deny_reset};	2215	return 1e99 if $self->{deny_reset};
1591		2216
1592	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2217	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1593	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2218	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1594		2219
…		…
1605	my ($self) = @_;	2230	my ($self) = @_;
1606		2231
1607	my $lock = cf::lock_acquire "map_data:$self->{path}";	2232	my $lock = cf::lock_acquire "map_data:$self->{path}";
1608		2233
1609	return if $self->players;	2234	return if $self->players;
1610	return if $self->isa ("ext::map_per_player");#d#
1611		2235
1612	warn "resetting map ", $self->path;#d#	2236	warn "resetting map ", $self->path;
1613		2237
1614	$self->in_memory (cf::MAP_SWAPPED);	2238	$self->in_memory (cf::MAP_SWAPPED);
1615		2239
1616	# need to save uniques path	2240	# need to save uniques path
1617	unless ($self->{deny_save}) {	2241	unless ($self->{deny_save}) {
…		…
1621	if $uniq;	2245	if $uniq;
1622	}	2246	}
1623		2247
1624	delete $cf::MAP{$self->path};	2248	delete $cf::MAP{$self->path};
1625		2249
		2250	$self->deactivate;
		2251	$_->clear_links_to ($self) for values %cf::MAP;
1626	$self->clear;	2252	$self->clear;
1627
1628	$_->clear_links_to ($self) for values %cf::MAP;
1629		2253
1630	$self->unlink_save;	2254	$self->unlink_save;
1631	$self->destroy;	2255	$self->destroy;
1632	}	2256	}
1633		2257
1634	my $nuke_counter = "aaaa";	2258	my $nuke_counter = "aaaa";
1635		2259
1636	sub nuke {	2260	sub nuke {
1637	my ($self) = @_;	2261	my ($self) = @_;
1638		2262
		2263	{
		2264	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2265
1639	delete $cf::MAP{$self->path};	2266	delete $cf::MAP{$self->path};
1640		2267
1641	$self->unlink_save;	2268	$self->unlink_save;
1642		2269
1643	bless $self, "cf::map";	2270	bless $self, "cf::map";
1644	delete $self->{deny_reset};	2271	delete $self->{deny_reset};
1645	$self->{deny_save} = 1;	2272	$self->{deny_save} = 1;
1646	$self->reset_timeout (1);	2273	$self->reset_timeout (1);
1647	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2274	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1648		2275
1649	$cf::MAP{$self->path} = $self;	2276	$cf::MAP{$self->path} = $self;
		2277	}
1650		2278
1651	$self->reset; # polite request, might not happen	2279	$self->reset; # polite request, might not happen
		2280	}
		2281
		2282	=item $maps = cf::map::tmp_maps
		2283
		2284	Returns an arrayref with all map paths of currently instantiated and saved
		2285	maps. May block.
		2286
		2287	=cut
		2288
		2289	sub tmp_maps() {
		2290	[
		2291	map {
		2292	utf8::decode $_;
		2293	/\.map$/
		2294	? normalise $_
		2295	: ()
		2296	} @{ aio_readdir $TMPDIR or [] }
		2297	]
		2298	}
		2299
		2300	=item $maps = cf::map::random_maps
		2301
		2302	Returns an arrayref with all map paths of currently instantiated and saved
		2303	random maps. May block.
		2304
		2305	=cut
		2306
		2307	sub random_maps() {
		2308	[
		2309	map {
		2310	utf8::decode $_;
		2311	/\.map$/
		2312	? normalise "?random/$_"
		2313	: ()
		2314	} @{ aio_readdir $RANDOMDIR or [] }
		2315	]
1652	}	2316	}
1653		2317
1654	=item cf::map::unique_maps	2318	=item cf::map::unique_maps
1655		2319
1656	Returns an arrayref of paths of all shared maps that have	2320	Returns an arrayref of paths of all shared maps that have
1657	instantiated unique items. May block.	2321	instantiated unique items. May block.
1658		2322
1659	=cut	2323	=cut
1660		2324
1661	sub unique_maps() {	2325	sub unique_maps() {
1662	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2326	[
1663	or return;	2327	map {
1664
1665	my @paths;
1666
1667	for (@$files) {
1668	utf8::decode $_;	2328	utf8::decode $_;
1669	next if /\.pst$/;	2329	s/\.map$//; # TODO future compatibility hack
1670	next unless /^$PATH_SEP/o;	2330	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1671		2331	? ()
1672	push @paths, cf::map::normalise $_;	2332	: normalise $_
		2333	} @{ aio_readdir $UNIQUEDIR or [] }
1673	}	2334	]
1674
1675	\@paths
1676	}	2335	}
1677
1678	package cf;
1679		2336
1680	=back	2337	=back
1681		2338
1682	=head3 cf::object	2339	=head3 cf::object
1683		2340
…		…
1687		2344
1688	=over 4	2345	=over 4
1689		2346
1690	=item $ob->inv_recursive	2347	=item $ob->inv_recursive
1691		2348
1692	Returns the inventory of the object _and_ their inventories, recursively.	2349	Returns the inventory of the object I<and> their inventories, recursively,
		2350	but I<not> the object itself.
1693		2351
1694	=cut	2352	=cut
1695		2353
1696	sub inv_recursive_;	2354	sub inv_recursive_;
1697	sub inv_recursive_ {	2355	sub inv_recursive_ {
…		…
1700		2358
1701	sub inv_recursive {	2359	sub inv_recursive {
1702	inv_recursive_ inv $_[0]	2360	inv_recursive_ inv $_[0]
1703	}	2361	}
1704		2362
		2363	=item $ref = $ob->ref
		2364
		2365	Creates and returns a persistent reference to an object that can be stored as a string.
		2366
		2367	=item $ob = cf::object::deref ($refstring)
		2368
		2369	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2370	even if the object actually exists. May block.
		2371
		2372	=cut
		2373
		2374	sub deref {
		2375	my ($ref) = @_;
		2376
		2377	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2378	my ($uuid, $name) = ($1, $2);
		2379	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2380	or return;
		2381	$pl->ob->uuid eq $uuid
		2382	or return;
		2383
		2384	$pl->ob
		2385	} else {
		2386	warn "$ref: cannot resolve object reference\n";
		2387	undef
		2388	}
		2389	}
		2390
1705	package cf;	2391	package cf;
1706		2392
1707	=back	2393	=back
1708		2394
1709	=head3 cf::object::player	2395	=head3 cf::object::player
…		…
1715	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2401	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1716	can be C<undef>. Does the right thing when the player is currently in a	2402	can be C<undef>. Does the right thing when the player is currently in a
1717	dialogue with the given NPC character.	2403	dialogue with the given NPC character.
1718		2404
1719	=cut	2405	=cut
		2406
		2407	our $SAY_CHANNEL = {
		2408	id => "say",
		2409	title => "Map",
		2410	reply => "say ",
		2411	tooltip => "Things said to and replied from npcs near you and other players on the same map only.",
		2412	};
		2413
		2414	our $CHAT_CHANNEL = {
		2415	id => "chat",
		2416	title => "Chat",
		2417	reply => "chat ",
		2418	tooltip => "Player chat and shouts, global to the server.",
		2419	};
1720		2420
1721	# rough implementation of a future "reply" method that works	2421	# rough implementation of a future "reply" method that works
1722	# with dialog boxes.	2422	# with dialog boxes.
1723	#TODO: the first argument must go, split into a $npc->reply_to ( method	2423	#TODO: the first argument must go, split into a $npc->reply_to ( method
1724	sub cf::object::player::reply($$$;$) {	2424	sub cf::object::player::reply($$$;$) {
…		…
1726		2426
1727	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2427	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1728		2428
1729	if ($self->{record_replies}) {	2429	if ($self->{record_replies}) {
1730	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2430	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2431
1731	} else {	2432	} else {
		2433	my $pl = $self->contr;
		2434
		2435	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2436	my $dialog = $pl->{npc_dialog};
		2437	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2438
		2439	} else {
1732	$msg = $npc->name . " says: $msg" if $npc;	2440	$msg = $npc->name . " says: $msg" if $npc;
1733	$self->message ($msg, $flags);	2441	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2442	}
1734	}	2443	}
		2444	}
		2445
		2446	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2447
		2448	=cut
		2449
		2450	sub cf::object::send_msg {
		2451	my $pl = shift->contr
		2452	or return;
		2453	$pl->send_msg (@_);
1735	}	2454	}
1736		2455
1737	=item $player_object->may ("access")	2456	=item $player_object->may ("access")
1738		2457
1739	Returns wether the given player is authorized to access resource "access"	2458	Returns wether the given player is authorized to access resource "access"
…		…
1752		2471
1753	=item $player_object->enter_link	2472	=item $player_object->enter_link
1754		2473
1755	Freezes the player and moves him/her to a special map (C<{link}>).	2474	Freezes the player and moves him/her to a special map (C<{link}>).
1756		2475
1757	The player should be reasonably safe there for short amounts of time. You	2476	The player should be reasonably safe there for short amounts of time (e.g.
1758	I<MUST> call C<leave_link> as soon as possible, though.	2477	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2478	though, as the palyer cannot control the character while it is on the link
		2479	map.
1759		2480
1760	Will never block.	2481	Will never block.
1761		2482
1762	=item $player_object->leave_link ($map, $x, $y)	2483	=item $player_object->leave_link ($map, $x, $y)
1763		2484
…		…
1786	$self->deactivate_recursive;	2507	$self->deactivate_recursive;
1787		2508
1788	return if UNIVERSAL::isa $self->map, "ext::map_link";	2509	return if UNIVERSAL::isa $self->map, "ext::map_link";
1789		2510
1790	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2511	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1791	if $self->map;	2512	if $self->map && $self->map->{path} ne "{link}";
1792		2513
1793	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2514	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1794	}	2515	}
1795		2516
1796	sub cf::object::player::leave_link {	2517	sub cf::object::player::leave_link {
1797	my ($self, $map, $x, $y) = @_;	2518	my ($self, $map, $x, $y) = @_;
		2519
		2520	return unless $self->contr->active;
1798		2521
1799	my $link_pos = delete $self->{_link_pos};	2522	my $link_pos = delete $self->{_link_pos};
1800		2523
1801	unless ($map) {	2524	unless ($map) {
1802	# restore original map position	2525	# restore original map position
…		…
1816	# use -1 or undef as default coordinates, not 0, 0	2539	# use -1 or undef as default coordinates, not 0, 0
1817	($x, $y) = ($map->enter_x, $map->enter_y)	2540	($x, $y) = ($map->enter_x, $map->enter_y)
1818	if $x <=0 && $y <= 0;	2541	if $x <=0 && $y <= 0;
1819		2542
1820	$map->load;	2543	$map->load;
1821	$map->load_diag;	2544	$map->load_neighbours;
1822		2545
1823	return unless $self->contr->active;	2546	return unless $self->contr->active;
		2547	$self->flag (cf::FLAG_DEBUG, 0);#d# temp
1824	$self->activate_recursive;	2548	$self->activate_recursive;
		2549
		2550	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1825	$self->enter_map ($map, $x, $y);	2551	$self->enter_map ($map, $x, $y);
1826	}	2552	}
1827		2553
1828	cf::player->attach (	2554	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1829	on_logout => sub {
1830	my ($pl) = @_;
1831		2555
1832	# abort map switching before logout	2556	Moves the player to the given map-path and coordinates by first freezing
1833	if ($pl->ob->{_link_pos}) {	2557	her, loading and preparing them map, calling the provided $check callback
1834	cf::sync_job {	2558	that has to return the map if sucecssful, and then unfreezes the player on
1835	$pl->ob->leave_link	2559	the new (success) or old (failed) map position. In either case, $done will
1836	};	2560	be called at the end of this process.
1837	}
1838	},
1839	on_login => sub {
1840	my ($pl) = @_;
1841		2561
1842	# try to abort aborted map switching on player login :)	2562	Note that $check will be called with a potentially non-loaded map, so if
1843	# should happen only on crashes	2563	it needs a loaded map it has to call C<< ->load >>.
1844	if ($pl->ob->{_link_pos}) {
1845	$pl->ob->enter_link;
1846	(async {
1847	# we need this sleep as the login has a concurrent enter_exit running
1848	# and this sleep increases chances of the player not ending up in scorn
1849	$pl->ob->reply (undef,
1850	"There was an internal problem at your last logout, "
1851	. "the server will try to bring you to your intended destination in a second.",
1852	cf::NDI_RED);
1853	Coro::Timer::sleep 1;
1854	$pl->ob->leave_link;
1855	})->prio (2);
1856	}
1857	},
1858	);
1859		2564
1860	=item $player_object->goto ($path, $x, $y)
1861
1862	=cut	2565	=cut
		2566
		2567	our $GOTOGEN;
1863		2568
1864	sub cf::object::player::goto {	2569	sub cf::object::player::goto {
1865	my ($self, $path, $x, $y) = @_;	2570	my ($self, $path, $x, $y, $check, $done) = @_;
		2571
		2572	# do generation counting so two concurrent goto's will be executed in-order
		2573	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1866		2574
1867	$self->enter_link;	2575	$self->enter_link;
1868		2576
1869	(async {	2577	(async {
		2578	$Coro::current->{desc} = "player::goto $path $x $y";
		2579
		2580	# *tag paths override both path and x|y
		2581	if ($path =~ /^\*(.*)$/) {
		2582	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2583	my $ob = $obs[rand @obs];
		2584
		2585	# see if we actually can go there
		2586	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2587	$ob = $obs[rand @obs];
		2588	} else {
		2589	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2590	}
		2591	# else put us there anyways for now #d#
		2592
		2593	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2594	} else {
		2595	($path, $x, $y) = (undef, undef, undef);
		2596	}
		2597	}
		2598
1870	my $map = eval {	2599	my $map = eval {
1871	my $map = cf::map::find $path;	2600	my $map = defined $path ? cf::map::find $path : undef;
		2601
		2602	if ($map) {
1872	$map = $map->customise_for ($self) if $map;	2603	$map = $map->customise_for ($self);
		2604	$map = $check->($map) if $check && $map;
		2605	} else {
		2606	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2607	}
		2608
1873	$map	2609	$map
		2610	};
		2611
		2612	if ($@) {
		2613	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2614	LOG llevError | logBacktrace, Carp::longmess $@;
1874	} or	2615	}
1875	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1876		2616
		2617	if ($gen == $self->{_goto_generation}) {
		2618	delete $self->{_goto_generation};
1877	$self->leave_link ($map, $x, $y);	2619	$self->leave_link ($map, $x, $y);
		2620	}
		2621
		2622	$done->() if $done;
1878	})->prio (1);	2623	})->prio (1);
1879	}	2624	}
1880		2625
1881	=item $player_object->enter_exit ($exit_object)	2626	=item $player_object->enter_exit ($exit_object)
1882		2627
…		…
1902	}	2647	}
1903		2648
1904	sub prepare_random_map {	2649	sub prepare_random_map {
1905	my ($exit) = @_;	2650	my ($exit) = @_;
1906		2651
1907	my $guard = cf::lock_acquire "exit_prepare:$exit";
1908
1909	# all this does is basically replace the /! path by	2652	# all this does is basically replace the /! path by
1910	# a new random map path (?random/...) with a seed	2653	# a new random map path (?random/...) with a seed
1911	# that depends on the exit object	2654	# that depends on the exit object
1912		2655
1913	my $rmp = parse_random_map_params $exit->msg;	2656	my $rmp = parse_random_map_params $exit->msg;
…		…
1915	if ($exit->map) {	2658	if ($exit->map) {
1916	$rmp->{region} = $exit->region->name;	2659	$rmp->{region} = $exit->region->name;
1917	$rmp->{origin_map} = $exit->map->path;	2660	$rmp->{origin_map} = $exit->map->path;
1918	$rmp->{origin_x} = $exit->x;	2661	$rmp->{origin_x} = $exit->x;
1919	$rmp->{origin_y} = $exit->y;	2662	$rmp->{origin_y} = $exit->y;
		2663
		2664	$exit->map->touch;
1920	}	2665	}
1921		2666
1922	$rmp->{random_seed} ||= $exit->random_seed;	2667	$rmp->{random_seed} ||= $exit->random_seed;
1923		2668
1924	my $data = cf::to_json $rmp;	2669	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1925	my $md5 = Digest::MD5::md5_hex $data;	2670	my $md5 = Digest::MD5::md5_hex $data;
1926	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2671	my $meta = "$RANDOMDIR/$md5.meta";
1927		2672
1928	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2673	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1929	aio_write $fh, 0, (length $data), $data, 0;	2674	aio_write $fh, 0, (length $data), $data, 0;
1930	undef $fh;	2675	undef $fh;
1931	aio_rename "$meta~", $meta;	2676	aio_rename "$meta~", $meta;
1932		2677
		2678	my $slaying = "?random/$md5";
		2679
		2680	if ($exit->valid) {
1933	$exit->slaying ("?random/$md5");	2681	$exit->slaying ("?random/$md5");
1934	$exit->msg (undef);	2682	$exit->msg (undef);
		2683	}
1935	}	2684	}
1936	}	2685	}
1937		2686
1938	sub cf::object::player::enter_exit {	2687	sub cf::object::player::enter_exit {
1939	my ($self, $exit) = @_;	2688	my ($self, $exit) = @_;
1940		2689
1941	return unless $self->type == cf::PLAYER;	2690	return unless $self->type == cf::PLAYER;
1942		2691
1943	if ($exit->slaying eq "/!") {
1944	#TODO: this should de-fi-ni-te-ly not be a sync-job
1945	cf::sync_job { prepare_random_map $exit };
1946	}
1947
1948	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1949	my $hp = $exit->stats->hp;
1950	my $sp = $exit->stats->sp;
1951
1952	$self->enter_link;	2692	$self->enter_link;
1953		2693
1954	(async {	2694	(async {
1955	$self->deactivate_recursive; # just to be sure	2695	$Coro::current->{desc} = "enter_exit";
		2696
1956	unless (eval {	2697	unless (eval {
		2698	$self->deactivate_recursive; # just to be sure
		2699
		2700	# random map handling
		2701	{
		2702	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2703
		2704	prepare_random_map $exit
		2705	if $exit->slaying eq "/!";
		2706	}
		2707
		2708	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2709	my $x = $exit->stats->hp;
		2710	my $y = $exit->stats->sp;
		2711
1957	$self->goto ($slaying, $hp, $sp);	2712	$self->goto ($map, $x, $y);
1958		2713
		2714	# if exit is damned, update players death & WoR home-position
		2715	$self->contr->savebed ($map, $x, $y)
		2716	if $exit->flag (cf::FLAG_DAMNED);
		2717
1959	1;	2718	1
1960	}) {	2719	}) {
1961	$self->message ("Something went wrong deep within the crossfire server. "	2720	$self->message ("Something went wrong deep within the deliantra server. "
1962	. "I'll try to bring you back to the map you were before. "	2721	. "I'll try to bring you back to the map you were before. "
1963	. "Please report this to the dungeon master!",	2722	. "Please report this to the dungeon master!",
1964	cf::NDI_UNIQUE | cf::NDI_RED);	2723	cf::NDI_UNIQUE | cf::NDI_RED);
1965		2724
1966	warn "ERROR in enter_exit: $@";	2725	warn "ERROR in enter_exit: $@";
1967	$self->leave_link;	2726	$self->leave_link;
1968	}	2727	}
1969	})->prio (1);	2728	})->prio (1);
…		…
1982		2741
1983	sub cf::client::send_drawinfo {	2742	sub cf::client::send_drawinfo {
1984	my ($self, $text, $flags) = @_;	2743	my ($self, $text, $flags) = @_;
1985		2744
1986	utf8::encode $text;	2745	utf8::encode $text;
1987	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2746	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1988	}	2747	}
1989		2748
		2749	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2750
		2751	Send a drawinfo or msg packet to the client, formatting the msg for the
		2752	client if neccessary. C<$type> should be a string identifying the type of
		2753	the message, with C<log> being the default. If C<$color> is negative, suppress
		2754	the message unless the client supports the msg packet.
		2755
		2756	=cut
		2757
		2758	# non-persistent channels (usually the info channel)
		2759	our %CHANNEL = (
		2760	"c/identify" => {
		2761	id => "infobox",
		2762	title => "Identify",
		2763	reply => undef,
		2764	tooltip => "Items recently identified",
		2765	},
		2766	"c/examine" => {
		2767	id => "infobox",
		2768	title => "Examine",
		2769	reply => undef,
		2770	tooltip => "Signs and other items you examined",
		2771	},
		2772	"c/book" => {
		2773	id => "infobox",
		2774	title => "Book",
		2775	reply => undef,
		2776	tooltip => "The contents of a note or book",
		2777	},
		2778	"c/lookat" => {
		2779	id => "infobox",
		2780	title => "Look",
		2781	reply => undef,
		2782	tooltip => "What you saw there",
		2783	},
		2784	"c/who" => {
		2785	id => "infobox",
		2786	title => "Players",
		2787	reply => undef,
		2788	tooltip => "Shows players who are currently online",
		2789	},
		2790	"c/body" => {
		2791	id => "infobox",
		2792	title => "Body Parts",
		2793	reply => undef,
		2794	tooltip => "Shows which body parts you posess and are available",
		2795	},
		2796	"c/skills" => {
		2797	id => "infobox",
		2798	title => "Skills",
		2799	reply => undef,
		2800	tooltip => "Shows your experience per skill and item power",
		2801	},
		2802	"c/uptime" => {
		2803	id => "infobox",
		2804	title => "Uptime",
		2805	reply => undef,
		2806	tooltip => "How long the server has been running since last restart",
		2807	},
		2808	"c/mapinfo" => {
		2809	id => "infobox",
		2810	title => "Map Info",
		2811	reply => undef,
		2812	tooltip => "Information related to the maps",
		2813	},
		2814	"c/party" => {
		2815	id => "party",
		2816	title => "Party",
		2817	reply => "gsay ",
		2818	tooltip => "Messages and chat related to your party",
		2819	},
		2820	);
		2821
		2822	sub cf::client::send_msg {
		2823	my ($self, $channel, $msg, $color, @extra) = @_;
		2824
		2825	$msg = $self->pl->expand_cfpod ($msg)
		2826	unless $color & cf::NDI_VERBATIM;
		2827
		2828	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2829
		2830	# check predefined channels, for the benefit of C
		2831	if ($CHANNEL{$channel}) {
		2832	$channel = $CHANNEL{$channel};
		2833
		2834	$self->ext_msg (channel_info => $channel)
		2835	if $self->can_msg;
		2836
		2837	$channel = $channel->{id};
		2838
		2839	} elsif (ref $channel) {
		2840	# send meta info to client, if not yet sent
		2841	unless (exists $self->{channel}{$channel->{id}}) {
		2842	$self->{channel}{$channel->{id}} = $channel;
		2843	$self->ext_msg (channel_info => $channel)
		2844	if $self->can_msg;
		2845	}
		2846
		2847	$channel = $channel->{id};
		2848	}
		2849
		2850	return unless @extra || length $msg;
		2851
		2852	if ($self->can_msg) {
		2853	# default colour, mask it out
		2854	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2855	if $color & cf::NDI_DEF;
		2856
		2857	my $pkt = "msg "
		2858	. $self->{json_coder}->encode (
		2859	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2860	);
		2861
		2862	# try lzf for large packets
		2863	$pkt = "lzf " . Compress::LZF::compress $pkt
		2864	if 1024 <= length $pkt and $self->{can_lzf};
		2865
		2866	# split very large packets
		2867	if (8192 < length $pkt and $self->{can_lzf}) {
		2868	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2869	$pkt = "frag";
		2870	}
		2871
		2872	$self->send_packet ($pkt);
		2873	} else {
		2874	if ($color >= 0) {
		2875	# replace some tags by gcfclient-compatible ones
		2876	for ($msg) {
		2877	1 while
		2878	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2879	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2880	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2881	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2882	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2883	}
		2884
		2885	$color &= cf::NDI_COLOR_MASK;
		2886
		2887	utf8::encode $msg;
		2888
		2889	if (0 && $msg =~ /\[/) {
		2890	# COMMAND/INFO
		2891	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2892	} else {
		2893	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2894	$self->send_packet ("drawinfo $color $msg")
		2895	}
		2896	}
		2897	}
		2898	}
		2899
		2900	=item $client->ext_msg ($type, @msg)
		2901
		2902	Sends an ext event to the client.
		2903
		2904	=cut
		2905
		2906	sub cf::client::ext_msg($$@) {
		2907	my ($self, $type, @msg) = @_;
		2908
		2909	if ($self->extcmd == 2) {
		2910	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2911	} elsif ($self->extcmd == 1) { # TODO: remove
		2912	push @msg, msgtype => "event_$type";
		2913	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2914	}
		2915	}
		2916
		2917	=item $client->ext_reply ($msgid, @msg)
		2918
		2919	Sends an ext reply to the client.
		2920
		2921	=cut
		2922
		2923	sub cf::client::ext_reply($$@) {
		2924	my ($self, $id, @msg) = @_;
		2925
		2926	if ($self->extcmd == 2) {
		2927	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2928	} elsif ($self->extcmd == 1) {
		2929	#TODO: version 1, remove
		2930	unshift @msg, msgtype => "reply", msgid => $id;
		2931	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2932	}
		2933	}
1990		2934
1991	=item $success = $client->query ($flags, "text", \&cb)	2935	=item $success = $client->query ($flags, "text", \&cb)
1992		2936
1993	Queues a query to the client, calling the given callback with	2937	Queues a query to the client, calling the given callback with
1994	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2938	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1995	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2939	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1996		2940
1997	Queries can fail, so check the return code. Or don't, as queries will become	2941	Queries can fail, so check the return code. Or don't, as queries will
1998	reliable at some point in the future.	2942	become reliable at some point in the future.
1999		2943
2000	=cut	2944	=cut
2001		2945
2002	sub cf::client::query {	2946	sub cf::client::query {
2003	my ($self, $flags, $text, $cb) = @_;	2947	my ($self, $flags, $text, $cb) = @_;
…		…
2011	utf8::encode $text;	2955	utf8::encode $text;
2012	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2956	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2013		2957
2014	$self->send_packet ($self->{query_queue}[0][0])	2958	$self->send_packet ($self->{query_queue}[0][0])
2015	if @{ $self->{query_queue} } == 1;	2959	if @{ $self->{query_queue} } == 1;
		2960
		2961	1
2016	}	2962	}
2017		2963
2018	cf::client->attach (	2964	cf::client->attach (
		2965	on_connect => sub {
		2966	my ($ns) = @_;
		2967
		2968	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2969	},
2019	on_reply => sub {	2970	on_reply => sub {
2020	my ($ns, $msg) = @_;	2971	my ($ns, $msg) = @_;
2021		2972
2022	# this weird shuffling is so that direct followup queries	2973	# this weird shuffling is so that direct followup queries
2023	# get handled first	2974	# get handled first
…		…
2035	} else {	2986	} else {
2036	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2987	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2037	}	2988	}
2038	}	2989	}
2039	},	2990	},
		2991	on_exticmd => sub {
		2992	my ($ns, $buf) = @_;
		2993
		2994	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2995
		2996	if (ref $msg) {
		2997	my ($type, $reply, @payload) =
		2998	"ARRAY" eq ref $msg
		2999	? @$msg
		3000	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3001
		3002	my @reply;
		3003
		3004	if (my $cb = $EXTICMD{$type}) {
		3005	@reply = $cb->($ns, @payload);
		3006	}
		3007
		3008	$ns->ext_reply ($reply, @reply)
		3009	if $reply;
		3010
		3011	} else {
		3012	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3013	}
		3014
		3015	cf::override;
		3016	},
2040	);	3017	);
2041		3018
2042	=item $client->async (\&cb)	3019	=item $client->async (\&cb)
2043		3020
2044	Create a new coroutine, running the specified callback. The coroutine will	3021	Create a new coroutine, running the specified callback. The coroutine will
…		…
2085	our $safe = new Safe "safe";	3062	our $safe = new Safe "safe";
2086	our $safe_hole = new Safe::Hole;	3063	our $safe_hole = new Safe::Hole;
2087		3064
2088	$SIG{FPE} = 'IGNORE';	3065	$SIG{FPE} = 'IGNORE';
2089		3066
2090	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3067	$safe->permit_only (Opcode::opset qw(
		3068	:base_core :base_mem :base_orig :base_math
		3069	grepstart grepwhile mapstart mapwhile
		3070	sort time
		3071	));
2091		3072
2092	# here we export the classes and methods available to script code	3073	# here we export the classes and methods available to script code
2093		3074
2094	=pod	3075	=pod
2095		3076
2096	The following fucntions and emthods are available within a safe environment:	3077	The following functions and methods are available within a safe environment:
2097		3078
2098	cf::object contr pay_amount pay_player map	3079	cf::object
		3080	contr pay_amount pay_player map x y force_find force_add destroy
		3081	insert remove name archname title slaying race decrease split
		3082
2099	cf::object::player player	3083	cf::object::player
2100	cf::player peaceful	3084	player
2101	cf::map trigger	3085
		3086	cf::player
		3087	peaceful
		3088
		3089	cf::map
		3090	trigger
2102		3091
2103	=cut	3092	=cut
2104		3093
2105	for (	3094	for (
2106	["cf::object" => qw(contr pay_amount pay_player map)],	3095	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3096	insert remove inv nrof name archname title slaying race
		3097	decrease split destroy change_exp)],
2107	["cf::object::player" => qw(player)],	3098	["cf::object::player" => qw(player)],
2108	["cf::player" => qw(peaceful)],	3099	["cf::player" => qw(peaceful)],
2109	["cf::map" => qw(trigger)],	3100	["cf::map" => qw(trigger)],
2110	) {	3101	) {
2111	no strict 'refs';	3102	no strict 'refs';
…		…
2182	=back	3173	=back
2183		3174
2184	=cut	3175	=cut
2185		3176
2186	#############################################################################	3177	#############################################################################
2187
2188	=head2 EXTENSION DATABASE SUPPORT
2189
2190	Crossfire maintains a very simple database for extension use. It can
2191	currently store anything that can be serialised using Storable, which
2192	excludes objects.
2193
2194	The parameter C<$family> should best start with the name of the extension
2195	using it, it should be unique.
2196
2197	=over 4
2198
2199	=item $value = cf::db_get $family => $key
2200
2201	Returns a single value from the database.
2202
2203	=item cf::db_put $family => $key => $value
2204
2205	Stores the given C<$value> in the family.
2206
2207	=cut
2208
2209	our $DB;
2210
2211	sub db_init {
2212	unless ($DB) {
2213	$DB = BDB::db_create $DB_ENV;
2214
2215	cf::sync_job {
2216	eval {
2217	$DB->set_flags (BDB::CHKSUM);
2218
2219	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2220	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2221	cf::cleanup "db_open(db): $!" if $!;
2222	};
2223	cf::cleanup "db_open(db): $@" if $@;
2224	};
2225
2226	my $path = cf::localdir . "/database.pst";
2227	if (stat $path) {
2228	cf::sync_job {
2229	my $pst = Storable::retrieve $path;
2230
2231	cf::db_put (board => data => $pst->{board});
2232	cf::db_put (guildrules => data => $pst->{guildrules});
2233	cf::db_put (rent => balance => $pst->{rent}{balance});
2234	BDB::db_env_txn_checkpoint $DB_ENV;
2235
2236	unlink $path;
2237	};
2238	}
2239	}
2240	}
2241
2242	sub db_get($$) {
2243	my $key = "$_[0]/$_[1]";
2244
2245	cf::sync_job {
2246	BDB::db_get $DB, undef, $key, my $data;
2247
2248	$! ? ()
2249	: Compress::LZF::sthaw $data
2250	}
2251	}
2252
2253	sub db_put($$$) {
2254	BDB::dbreq_pri 4;
2255	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2256	}
2257
2258	#############################################################################
2259	# the server's init and main functions	3178	# the server's init and main functions
2260		3179
		3180	sub load_facedata($) {
		3181	my ($path) = @_;
		3182
		3183	# HACK to clear player env face cache, we need some signal framework
		3184	# for this (global event?)
		3185	%ext::player_env::MUSIC_FACE_CACHE = ();
		3186
		3187	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3188
		3189	warn "loading facedata from $path\n";
		3190
		3191	my $facedata;
		3192	0 < aio_load $path, $facedata
		3193	or die "$path: $!";
		3194
		3195	$facedata = Coro::Storable::thaw $facedata;
		3196
		3197	$facedata->{version} == 2
		3198	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3199
		3200	# patch in the exptable
		3201	$facedata->{resource}{"res/exp_table"} = {
		3202	type => FT_RSRC,
		3203	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3204	};
		3205	cf::cede_to_tick;
		3206
		3207	{
		3208	my $faces = $facedata->{faceinfo};
		3209
		3210	while (my ($face, $info) = each %$faces) {
		3211	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3212
		3213	cf::face::set_visibility $idx, $info->{visibility};
		3214	cf::face::set_magicmap $idx, $info->{magicmap};
		3215	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3216	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
		3217
		3218	cf::cede_to_tick;
		3219	}
		3220
		3221	while (my ($face, $info) = each %$faces) {
		3222	next unless $info->{smooth};
		3223
		3224	my $idx = cf::face::find $face
		3225	or next;
		3226
		3227	if (my $smooth = cf::face::find $info->{smooth}) {
		3228	cf::face::set_smooth $idx, $smooth;
		3229	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3230	} else {
		3231	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3232	}
		3233
		3234	cf::cede_to_tick;
		3235	}
		3236	}
		3237
		3238	{
		3239	my $anims = $facedata->{animinfo};
		3240
		3241	while (my ($anim, $info) = each %$anims) {
		3242	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3243	cf::cede_to_tick;
		3244	}
		3245
		3246	cf::anim::invalidate_all; # d'oh
		3247	}
		3248
		3249	{
		3250	# TODO: for gcfclient pleasure, we should give resources
		3251	# that gcfclient doesn't grok a >10000 face index.
		3252	my $res = $facedata->{resource};
		3253
		3254	while (my ($name, $info) = each %$res) {
		3255	if (defined $info->{type}) {
		3256	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3257	my $data;
		3258
		3259	if ($info->{type} & 1) {
		3260	# prepend meta info
		3261
		3262	my $meta = $enc->encode ({
		3263	name => $name,
		3264	%{ $info->{meta} || {} },
		3265	});
		3266
		3267	$data = pack "(w/a*)*", $meta, $info->{data};
		3268	} else {
		3269	$data = $info->{data};
		3270	}
		3271
		3272	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3273	cf::face::set_type $idx, $info->{type};
		3274	} else {
		3275	$RESOURCE{$name} = $info;
		3276	}
		3277
		3278	cf::cede_to_tick;
		3279	}
		3280	}
		3281
		3282	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3283
		3284	1
		3285	}
		3286
		3287	cf::global->attach (on_resource_update => sub {
		3288	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3289	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3290
		3291	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3292	my $sound = $soundconf->{compat}[$_]
		3293	or next;
		3294
		3295	my $face = cf::face::find "sound/$sound->[1]";
		3296	cf::sound::set $sound->[0] => $face;
		3297	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3298	}
		3299
		3300	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3301	my $face = cf::face::find "sound/$v";
		3302	cf::sound::set $k => $face;
		3303	}
		3304	}
		3305	});
		3306
		3307	register_exticmd fx_want => sub {
		3308	my ($ns, $want) = @_;
		3309
		3310	while (my ($k, $v) = each %$want) {
		3311	$ns->fx_want ($k, $v);
		3312	}
		3313	};
		3314
2261	sub load_resources {	3315	sub load_resource_file($) {
2262	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3316	my $guard = lock_acquire "load_resource_file";
		3317
		3318	my $status = load_resource_file_ $_[0];
		3319	get_slot 0.1, 100;
		3320	cf::arch::commit_load;
		3321
		3322	$status
		3323	}
		3324
		3325	sub reload_regions {
		3326	# HACK to clear player env face cache, we need some signal framework
		3327	# for this (global event?)
		3328	%ext::player_env::MUSIC_FACE_CACHE = ();
		3329
		3330	load_resource_file "$MAPDIR/regions"
2263	or die "unable to load regions file\n";#d#	3331	or die "unable to load regions file\n";
2264	}
2265		3332
2266	sub cfg_load {	3333	for (cf::region::list) {
		3334	$_->{match} = qr/$_->{match}/
		3335	if exists $_->{match};
		3336	}
		3337	}
		3338
		3339	sub reload_facedata {
		3340	load_facedata "$DATADIR/facedata"
		3341	or die "unable to load facedata\n";
		3342	}
		3343
		3344	sub reload_archetypes {
		3345	load_resource_file "$DATADIR/archetypes"
		3346	or die "unable to load archetypes\n";
		3347	}
		3348
		3349	sub reload_treasures {
		3350	load_resource_file "$DATADIR/treasures"
		3351	or die "unable to load treasurelists\n";
		3352	}
		3353
		3354	sub reload_resources {
		3355	warn "reloading resource files...\n";
		3356
		3357	reload_facedata;
		3358	reload_archetypes;
		3359	reload_regions;
		3360	reload_treasures;
		3361
		3362	warn "finished reloading resource files\n";
		3363	}
		3364
		3365	sub reload_config {
2267	open my $fh, "<:utf8", cf::confdir . "/config"	3366	open my $fh, "<:utf8", "$CONFDIR/config"
2268	or return;	3367	or return;
2269		3368
2270	local $/;	3369	local $/;
2271	*CFG = YAML::Syck::Load <$fh>;	3370	*CFG = YAML::Load <$fh>;
2272		3371
2273	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3372	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2274		3373
2275	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3374	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2276	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3375	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2282	};	3381	};
2283	warn $@ if $@;	3382	warn $@ if $@;
2284	}	3383	}
2285	}	3384	}
2286		3385
2287	sub init {	3386	sub pidfile() {
2288	load_resources;	3387	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3388	or die "$PIDFILE: $!";
		3389	flock $fh, &Fcntl::LOCK_EX
		3390	or die "$PIDFILE: flock: $!";
		3391	$fh
		3392	}
		3393
		3394	# make sure only one server instance is running at any one time
		3395	sub atomic {
		3396	my $fh = pidfile;
		3397
		3398	my $pid = <$fh>;
		3399	kill 9, $pid if $pid > 0;
		3400
		3401	seek $fh, 0, 0;
		3402	print $fh $$;
2289	}	3403	}
2290		3404
2291	sub main {	3405	sub main {
		3406	cf::init_globals; # initialise logging
		3407
		3408	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3409	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3410	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3411	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3412
		3413	cf::init_experience;
		3414	cf::init_anim;
		3415	cf::init_attackmess;
		3416	cf::init_dynamic;
		3417	cf::init_block;
		3418
		3419	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3420
2292	# we must not ever block the main coroutine	3421	# we must not ever block the main coroutine
2293	local $Coro::idle = sub {	3422	local $Coro::idle = sub {
2294	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3423	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2295	(async {	3424	(async {
2296	Event::one_event;	3425	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3426	EV::loop EV::LOOP_ONESHOT;
2297	})->prio (Coro::PRIO_MAX);	3427	})->prio (Coro::PRIO_MAX);
2298	};	3428	};
2299		3429
2300	cfg_load;	3430	evthread_start IO::AIO::poll_fileno;
		3431
		3432	cf::sync_job {
		3433	reload_resources;
		3434	reload_config;
2301	db_init;	3435	db_init;
		3436
		3437	cf::load_settings;
		3438	cf::load_materials;
		3439	cf::init_uuid;
		3440	cf::init_signals;
		3441	cf::init_commands;
		3442	cf::init_skills;
		3443
		3444	cf::init_beforeplay;
		3445
		3446	atomic;
		3447
2302	load_extensions;	3448	load_extensions;
2303		3449
2304	$TICK_WATCHER->start;	3450	utime time, time, $RUNTIMEFILE;
		3451
		3452	# no (long-running) fork's whatsoever before this point(!)
		3453	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3454
		3455	(pop @POST_INIT)->(0) while @POST_INIT;
		3456	};
		3457
2305	Event::loop;	3458	EV::loop;
2306	}	3459	}
2307		3460
2308	#############################################################################	3461	#############################################################################
2309	# initialisation and cleanup	3462	# initialisation and cleanup
2310		3463
2311	# install some emergency cleanup handlers	3464	# install some emergency cleanup handlers
2312	BEGIN {	3465	BEGIN {
		3466	our %SIGWATCHER = ();
2313	for my $signal (qw(INT HUP TERM)) {	3467	for my $signal (qw(INT HUP TERM)) {
2314	Event->signal (	3468	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2315	reentrant => 0,
2316	data => WF_AUTOCANCEL,
2317	signal => $signal,
2318	prio => 0,
2319	cb => sub {
2320	cf::cleanup "SIG$signal";	3469	cf::cleanup "SIG$signal";
2321	},
2322	);	3470	};
		3471	}
		3472	}
		3473
		3474	sub write_runtime_sync {
		3475	# first touch the runtime file to show we are still running:
		3476	# the fsync below can take a very very long time.
		3477
		3478	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3479
		3480	my $guard = cf::lock_acquire "write_runtime";
		3481
		3482	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3483	or return;
		3484
		3485	my $value = $cf::RUNTIME + 90 + 10;
		3486	# 10 is the runtime save interval, for a monotonic clock
		3487	# 60 allows for the watchdog to kill the server.
		3488
		3489	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3490	and return;
		3491
		3492	# always fsync - this file is important
		3493	aio_fsync $fh
		3494	and return;
		3495
		3496	# touch it again to show we are up-to-date
		3497	aio_utime $fh, undef, undef;
		3498
		3499	close $fh
		3500	or return;
		3501
		3502	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3503	and return;
		3504
		3505	warn "runtime file written.\n";
		3506
2323	}	3507	1
		3508	}
		3509
		3510	our $uuid_lock;
		3511	our $uuid_skip;
		3512
		3513	sub write_uuid_sync($) {
		3514	$uuid_skip ||= $_[0];
		3515
		3516	return if $uuid_lock;
		3517	local $uuid_lock = 1;
		3518
		3519	my $uuid = "$LOCALDIR/uuid";
		3520
		3521	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3522	or return;
		3523
		3524	my $value = uuid_seq uuid_cur;
		3525
		3526	unless ($value) {
		3527	warn "cowardly refusing to write zero uuid value!\n";
		3528	return;
		3529	}
		3530
		3531	my $value = uuid_str $value + $uuid_skip;
		3532	$uuid_skip = 0;
		3533
		3534	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3535	and return;
		3536
		3537	# always fsync - this file is important
		3538	aio_fsync $fh
		3539	and return;
		3540
		3541	close $fh
		3542	or return;
		3543
		3544	aio_rename "$uuid~", $uuid
		3545	and return;
		3546
		3547	warn "uuid file written ($value).\n";
		3548
		3549	1
		3550
		3551	}
		3552
		3553	sub write_uuid($$) {
		3554	my ($skip, $sync) = @_;
		3555
		3556	$sync ? write_uuid_sync $skip
		3557	: async { write_uuid_sync $skip };
2324	}	3558	}
2325		3559
2326	sub emergency_save() {	3560	sub emergency_save() {
2327	my $freeze_guard = cf::freeze_mainloop;	3561	my $freeze_guard = cf::freeze_mainloop;
2328		3562
…		…
2334	# and maps saved/destroyed asynchronously.	3568	# and maps saved/destroyed asynchronously.
2335	warn "begin emergency player save\n";	3569	warn "begin emergency player save\n";
2336	for my $login (keys %cf::PLAYER) {	3570	for my $login (keys %cf::PLAYER) {
2337	my $pl = $cf::PLAYER{$login} or next;	3571	my $pl = $cf::PLAYER{$login} or next;
2338	$pl->valid or next;	3572	$pl->valid or next;
		3573	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2339	$pl->save;	3574	$pl->save;
2340	}	3575	}
2341	warn "end emergency player save\n";	3576	warn "end emergency player save\n";
2342		3577
2343	warn "begin emergency map save\n";	3578	warn "begin emergency map save\n";
…		…
2349	warn "end emergency map save\n";	3584	warn "end emergency map save\n";
2350		3585
2351	warn "begin emergency database checkpoint\n";	3586	warn "begin emergency database checkpoint\n";
2352	BDB::db_env_txn_checkpoint $DB_ENV;	3587	BDB::db_env_txn_checkpoint $DB_ENV;
2353	warn "end emergency database checkpoint\n";	3588	warn "end emergency database checkpoint\n";
		3589
		3590	warn "begin write uuid\n";
		3591	write_uuid_sync 1;
		3592	warn "end write uuid\n";
2354	};	3593	};
2355		3594
2356	warn "leave emergency perl save\n";	3595	warn "leave emergency perl save\n";
2357	}	3596	}
2358		3597
		3598	sub post_cleanup {
		3599	my ($make_core) = @_;
		3600
		3601	warn Carp::longmess "post_cleanup backtrace"
		3602	if $make_core;
		3603
		3604	my $fh = pidfile;
		3605	unlink $PIDFILE if <$fh> == $$;
		3606	}
		3607
		3608	# a safer delete_package, copied from Symbol
		3609	sub clear_package($) {
		3610	my $pkg = shift;
		3611
		3612	# expand to full symbol table name if needed
		3613	unless ($pkg =~ /^main::.*::$/) {
		3614	$pkg = "main$pkg" if $pkg =~ /^::/;
		3615	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3616	$pkg .= '::' unless $pkg =~ /::$/;
		3617	}
		3618
		3619	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3620	my $stem_symtab = *{$stem}{HASH};
		3621
		3622	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3623	or return;
		3624
		3625	# clear all symbols
		3626	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3627	for my $name (keys %$leaf_symtab) {
		3628	_gv_clear *{"$pkg$name"};
		3629	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3630	}
		3631	warn "cleared package $pkg\n";#d#
		3632	}
		3633
2359	sub reload() {	3634	sub do_reload_perl() {
2360	# can/must only be called in main	3635	# can/must only be called in main
2361	if ($Coro::current != $Coro::main) {	3636	if ($Coro::current != $Coro::main) {
2362	warn "can only reload from main coroutine";	3637	warn "can only reload from main coroutine";
2363	return;	3638	return;
2364	}	3639	}
2365		3640
		3641	return if $RELOAD++;
		3642
		3643	while ($RELOAD) {
2366	warn "reloading...";	3644	warn "reloading...";
2367		3645
2368	warn "cancelling server ticker";	3646	warn "entering sync_job";
2369	$TICK_WATCHER->cancel;
2370		3647
		3648	cf::sync_job {
		3649	cf::write_runtime_sync; # external watchdog should not bark
2371	cf::emergency_save;	3650	cf::emergency_save;
		3651	cf::write_runtime_sync; # external watchdog should not bark
2372		3652
2373	eval {	3653	warn "syncing database to disk";
		3654	BDB::db_env_txn_checkpoint $DB_ENV;
		3655
2374	# if anything goes wrong in here, we should simply crash as we already saved	3656	# if anything goes wrong in here, we should simply crash as we already saved
2375		3657
2376	warn "cancelling all WF_AUTOCANCEL watchers";
2377	for (Event::all_watchers) {
2378	$_->cancel if $_->data & WF_AUTOCANCEL;
2379	}
2380
2381	warn "syncing database to disk";
2382	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
2383
2384	warn "flushing outstanding aio requests";	3658	warn "flushing outstanding aio requests";
2385	for (;;) {
2386	BDB::flush;
2387	IO::AIO::flush;
2388	Coro::cede;
2389	last unless IO::AIO::nreqs || BDB::nreqs;	3659	while (IO::AIO::nreqs || BDB::nreqs) {
2390	warn "iterate...";	3660	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2391	}
2392
2393	warn "cancelling all extension coros";
2394	$_->cancel for values %EXT_CORO;
2395	%EXT_CORO = ();
2396
2397	warn "removing commands";
2398	%COMMAND = ();
2399
2400	warn "removing ext commands";
2401	%EXTCMD = ();
2402
2403	warn "unloading/nuking all extensions";
2404	for my $pkg (@EXTS) {
2405	warn "... unloading $pkg";
2406
2407	if (my $cb = $pkg->can ("unload")) {
2408	eval {
2409	$cb->($pkg);
2410	1
2411	} or warn "$pkg unloaded, but with errors: $@";
2412	}	3661	}
2413		3662
2414	warn "... nuking $pkg";	3663	warn "cancelling all extension coros";
2415	Symbol::delete_package $pkg;	3664	$_->cancel for values %EXT_CORO;
2416	}	3665	%EXT_CORO = ();
2417		3666
2418	warn "unloading all perl modules loaded from $LIBDIR";	3667	warn "removing commands";
2419	while (my ($k, $v) = each %INC) {	3668	%COMMAND = ();
2420	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2421		3669
		3670	warn "removing ext/exti commands";
		3671	%EXTCMD = ();
		3672	%EXTICMD = ();
		3673
		3674	warn "unloading/nuking all extensions";
		3675	for my $pkg (@EXTS) {
2422	warn "... unloading $k";	3676	warn "... unloading $pkg";
2423	delete $INC{$k};
2424		3677
2425	$k =~ s/\.pm$//;
2426	$k =~ s/\//::/g;
2427
2428	if (my $cb = $k->can ("unload_module")) {	3678	if (my $cb = $pkg->can ("unload")) {
		3679	eval {
2429	$cb->();	3680	$cb->($pkg);
		3681	1
		3682	} or warn "$pkg unloaded, but with errors: $@";
		3683	}
		3684
		3685	warn "... clearing $pkg";
		3686	clear_package $pkg;
2430	}	3687	}
2431		3688
2432	Symbol::delete_package $k;	3689	warn "unloading all perl modules loaded from $LIBDIR";
		3690	while (my ($k, $v) = each %INC) {
		3691	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3692
		3693	warn "... unloading $k";
		3694	delete $INC{$k};
		3695
		3696	$k =~ s/\.pm$//;
		3697	$k =~ s/\//::/g;
		3698
		3699	if (my $cb = $k->can ("unload_module")) {
		3700	$cb->();
		3701	}
		3702
		3703	clear_package $k;
2433	}	3704	}
2434		3705
2435	warn "getting rid of safe::, as good as possible";	3706	warn "getting rid of safe::, as good as possible";
2436	Symbol::delete_package "safe::$_"	3707	clear_package "safe::$_"
2437	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3708	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2438		3709
2439	warn "unloading cf.pm \"a bit\"";	3710	warn "unloading cf.pm \"a bit\"";
2440	delete $INC{"cf.pm"};	3711	delete $INC{"cf.pm"};
		3712	delete $INC{"cf/pod.pm"};
2441		3713
2442	# don't, removes xs symbols, too,	3714	# don't, removes xs symbols, too,
2443	# and global variables created in xs	3715	# and global variables created in xs
2444	#Symbol::delete_package __PACKAGE__;	3716	#clear_package __PACKAGE__;
2445		3717
2446	warn "unload completed, starting to reload now";	3718	warn "unload completed, starting to reload now";
2447		3719
2448	warn "reloading cf.pm";	3720	warn "reloading cf.pm";
2449	require cf;	3721	require cf;
2450	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3722	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2451		3723
2452	warn "loading config and database again";	3724	warn "loading config and database again";
2453	cf::cfg_load;	3725	cf::reload_config;
2454		3726
2455	warn "loading extensions";	3727	warn "loading extensions";
2456	cf::load_extensions;	3728	cf::load_extensions;
2457		3729
2458	warn "reattaching attachments to objects/players";	3730	warn "reattaching attachments to objects/players";
2459	_global_reattach;	3731	_global_reattach; # objects, sockets
2460	warn "reattaching attachments to maps";	3732	warn "reattaching attachments to maps";
2461	reattach $_ for values %MAP;	3733	reattach $_ for values %MAP;
		3734	warn "reattaching attachments to players";
		3735	reattach $_ for values %PLAYER;
2462		3736
2463	warn "loading reloadable resources";	3737	warn "running post_load";
2464	load_resources;	3738	(pop @POST_INIT)->(1) while @POST_INIT;
2465		3739
2466	warn "restarting server ticker";	3740	warn "leaving sync_job";
2467		3741
2468	$TICK_WATCHER->start;	3742	1
		3743	} or do {
		3744	warn $@;
		3745	cf::cleanup "error while reloading, exiting.";
		3746	};
		3747
		3748	warn "reloaded";
		3749	--$RELOAD;
		3750	}
		3751	};
		3752
		3753	our $RELOAD_WATCHER; # used only during reload
		3754
		3755	sub reload_perl() {
		3756	# doing reload synchronously and two reloads happen back-to-back,
		3757	# coro crashes during coro_state_free->destroy here.
		3758
		3759	$RELOAD_WATCHER ||= EV::timer $TICK * 1.5, 0, sub {
		3760	do_reload_perl;
		3761	undef $RELOAD_WATCHER;
2469	};	3762	};
2470		3763	}
2471	if ($@) {
2472	warn $@;
2473	warn "error while reloading, exiting.";
2474	exit 1;
2475	}
2476
2477	warn "reloaded";
2478	};
2479
2480	our $RELOAD_WATCHER; # used only during reload
2481		3764
2482	register_command "reload" => sub {	3765	register_command "reload" => sub {
2483	my ($who, $arg) = @_;	3766	my ($who, $arg) = @_;
2484		3767
2485	if ($who->flag (FLAG_WIZ)) {	3768	if ($who->flag (FLAG_WIZ)) {
2486	$who->message ("reloading server.");	3769	$who->message ("reloading server.");
2487		3770	async {
2488	# doing reload synchronously and two reloads happen back-to-back,	3771	$Coro::current->{desc} = "perl_reload";
2489	# coro crashes during coro_state_free->destroy here.
2490
2491	$RELOAD_WATCHER ||= Event->timer (
2492	reentrant => 0,
2493	after => 0,
2494	data => WF_AUTOCANCEL,
2495	cb => sub {
2496	reload;	3772	reload_perl;
2497	undef $RELOAD_WATCHER;
2498	},
2499	);	3773	};
2500	}	3774	}
2501	};	3775	};
2502		3776
2503	unshift @INC, $LIBDIR;	3777	unshift @INC, $LIBDIR;
2504		3778
2505	my $bug_warning = 0;	3779	my $bug_warning = 0;
2506		3780
2507	$TICK_WATCHER = Event->timer (	3781	our @WAIT_FOR_TICK;
2508	reentrant => 0,	3782	our @WAIT_FOR_TICK_BEGIN;
2509	parked => 1,	3783
2510	prio => 0,	3784	sub wait_for_tick {
2511	at => $NEXT_TICK || $TICK,	3785	return if tick_inhibit || $Coro::current == $Coro::main;
2512	data => WF_AUTOCANCEL,	3786
2513	cb => sub {	3787	my $signal = new Coro::Signal;
		3788	push @WAIT_FOR_TICK, $signal;
		3789	$signal->wait;
		3790	}
		3791
		3792	sub wait_for_tick_begin {
		3793	return if tick_inhibit || $Coro::current == $Coro::main;
		3794
		3795	my $signal = new Coro::Signal;
		3796	push @WAIT_FOR_TICK_BEGIN, $signal;
		3797	$signal->wait;
		3798	}
		3799
		3800	sub tick {
2514	if ($Coro::current != $Coro::main) {	3801	if ($Coro::current != $Coro::main) {
2515	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3802	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2516	unless ++$bug_warning > 10;	3803	unless ++$bug_warning > 10;
2517	return;	3804	return;
2518	}	3805	}
2519		3806
2520	$NOW = Event::time;
2521
2522	cf::server_tick; # one server iteration	3807	cf::server_tick; # one server iteration
2523	$RUNTIME += $TICK;
2524	$NEXT_TICK += $TICK;
2525		3808
2526	$WAIT_FOR_TICK->broadcast;	3809	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2527	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3810	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
		3811	Coro::async_pool {
		3812	$Coro::current->{desc} = "runtime saver";
		3813	write_runtime_sync
		3814	or warn "ERROR: unable to write runtime file: $!";
		3815	};
		3816	}
2528		3817
2529	Event::sweep;	3818	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2530	Coro::cede_notself;	3819	$sig->send;
		3820	}
		3821	while (my $sig = shift @WAIT_FOR_TICK) {
		3822	$sig->send;
		3823	}
		3824
		3825	$LOAD = ($NOW - $TICK_START) / $TICK;
		3826	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3827
		3828	if (0) {
		3829	if ($NEXT_TICK) {
		3830	my $jitter = $TICK_START - $NEXT_TICK;
		3831	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3832	warn "jitter $JITTER\n";#d#
2531		3833	}
2532	# my $AFTER = Event::time;
2533	# warn $AFTER - $NOW;#d#
2534
2535	# if we are delayed by four ticks or more, skip them all
2536	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2537
2538	$TICK_WATCHER->at ($NEXT_TICK);
2539	$TICK_WATCHER->start;
2540	},	3834	}
2541	);	3835	}
2542		3836
2543	{	3837	{
2544	BDB::max_poll_time $TICK * 0.1;	3838	# configure BDB
2545	$BDB_POLL_WATCHER = Event->io (	3839
2546	reentrant => 0,
2547	fd => BDB::poll_fileno,
2548	poll => 'r',
2549	prio => 0,
2550	data => WF_AUTOCANCEL,
2551	cb => \&BDB::poll_cb,
2552	);
2553	BDB::min_parallel 8;	3840	BDB::min_parallel 8;
2554		3841	BDB::max_poll_reqs $TICK * 0.1;
2555	BDB::set_sync_prepare {	3842	$AnyEvent::BDB::WATCHER->priority (1);
2556	my $status;
2557	my $current = $Coro::current;
2558	(
2559	sub {
2560	$status = $!;
2561	$current->ready; undef $current;
2562	},
2563	sub {
2564	Coro::schedule while defined $current;
2565	$! = $status;
2566	},
2567	)
2568	};
2569		3843
2570	unless ($DB_ENV) {	3844	unless ($DB_ENV) {
2571	$DB_ENV = BDB::db_env_create;	3845	$DB_ENV = BDB::db_env_create;
		3846	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3847	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3848	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3849	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3850	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2572		3851
2573	cf::sync_job {	3852	cf::sync_job {
2574	eval {	3853	eval {
2575	BDB::db_env_open	3854	BDB::db_env_open
2576	$DB_ENV,	3855	$DB_ENV,
2577	$BDB_ENV_DIR,	3856	$BDBDIR,
2578	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3857	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2579	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3858	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2580	0666;	3859	0666;
2581		3860
2582	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3861	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2583
2584	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2585	$DB_ENV->set_lk_detect;
2586	};	3862	};
2587		3863
2588	cf::cleanup "db_env_open(db): $@" if $@;	3864	cf::cleanup "db_env_open(db): $@" if $@;
2589	};	3865	};
2590	}	3866	}
		3867
		3868	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3869	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3870	};
		3871	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3872	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3873	};
		3874	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3875	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3876	};
2591	}	3877	}
2592		3878
2593	{	3879	{
		3880	# configure IO::AIO
		3881
2594	IO::AIO::min_parallel 8;	3882	IO::AIO::min_parallel 8;
2595
2596	undef $Coro::AIO::WATCHER;
2597	IO::AIO::max_poll_time $TICK * 0.1;	3883	IO::AIO::max_poll_time $TICK * 0.1;
2598	$AIO_POLL_WATCHER = Event->io (	3884	undef $AnyEvent::AIO::WATCHER;
2599	reentrant => 0,
2600	fd => IO::AIO::poll_fileno,
2601	poll => 'r',
2602	prio => 6,
2603	data => WF_AUTOCANCEL,
2604	cb => \&IO::AIO::poll_cb,
2605	);
2606	}	3885	}
2607		3886
2608	$WRITE_RUNTIME_WATCHER = Event->timer (	3887	my $_log_backtrace;
2609	reentrant => 0,	3888
2610	data => WF_AUTOCANCEL,	3889	sub _log_backtrace {
2611	after => 1,	3890	my ($msg, @addr) = @_;
2612	interval => 10,	3891
2613	prio => 6, # keep it lowest so it acts like a watchdog	3892	$msg =~ s/\n//;
2614	cb => Coro::unblock_sub {	3893
2615	write_runtime	3894	# limit the # of concurrent backtraces
2616	or warn "ERROR: unable to write runtime file: $!";	3895	if ($_log_backtrace < 2) {
		3896	++$_log_backtrace;
		3897	my $perl_bt = Carp::longmess $msg;
		3898	async {
		3899	$Coro::current->{desc} = "abt $msg";
		3900
		3901	my @bt = fork_call {
		3902	@addr = map { sprintf "%x", $_ } @addr;
		3903	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3904	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3905	or die "addr2line: $!";
		3906
		3907	my @funcs;
		3908	my @res = <$fh>;
		3909	chomp for @res;
		3910	while (@res) {
		3911	my ($func, $line) = splice @res, 0, 2, ();
		3912	push @funcs, "[$func] $line";
		3913	}
		3914
		3915	@funcs
		3916	};
		3917
		3918	LOG llevInfo, "[ABT] $perl_bt\n";
		3919	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3920	LOG llevInfo, "[ABT] $_\n" for @bt;
		3921	--$_log_backtrace;
		3922	};
		3923	} else {
		3924	LOG llevInfo, "[ABT] $msg\n";
		3925	LOG llevInfo, "[ABT] [suppressed]\n";
2617	},	3926	}
2618	);	3927	}
		3928
		3929	# load additional modules
		3930	use cf::pod;
2619		3931
2620	END { cf::emergency_save }	3932	END { cf::emergency_save }
2621		3933
2622	1	3934	1
2623		3935

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