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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.250 by root, Wed Apr 18 14:24:10 2007 UTC vs.
Revision 1.478 by root, Thu Sep 17 01:57:31 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
		24	use 5.10.0;
3	use utf8;	25	use utf8;
4	use strict;	26	use strict qw(vars subs);
5		27
6	use Symbol;	28	use Symbol;
7	use List::Util;	29	use List::Util;
8	use Socket;	30	use Socket;
9	use Storable;	31	use EV;
10	use Event;
11	use Opcode;	32	use Opcode;
12	use Safe;	33	use Safe;
13	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
14		36
		37	use Guard ();
15	use Coro 3.61 ();	38	use Coro ();
16	use Coro::State;	39	use Coro::State;
17	use Coro::Handle;	40	use Coro::Handle;
		41	use Coro::EV;
18	use Coro::Event;	42	use Coro::AnyEvent;
19	use Coro::Timer;	43	use Coro::Timer;
20	use Coro::Signal;	44	use Coro::Signal;
21	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
22	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
23	use Coro::Storable;	50	use Coro::Storable;
		51	use Coro::Util ();
24		52
		53	use JSON::XS 2.01 ();
25	use BDB ();	54	use BDB ();
26	use Data::Dumper;	55	use Data::Dumper;
27	use Digest::MD5;	56	use Digest::MD5;
28	use Fcntl;	57	use Fcntl;
29	use YAML::Syck ();	58	use YAML ();
30	use IO::AIO 2.32 ();	59	use IO::AIO ();
31	use Time::HiRes;	60	use Time::HiRes;
32	use Compress::LZF;	61	use Compress::LZF;
		62	use Digest::MD5 ();
		63
		64	AnyEvent::detect;
33		65
34	# configure various modules to our taste	66	# configure various modules to our taste
35	#	67	#
36	$Storable::canonical = 1; # reduce rsync transfers	68	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	69	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		70
		71	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		72
		73	# make sure c-lzf reinitialises itself
		74	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	75	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
39		76
40	$Event::Eval = 1; # no idea why this is required, but it is	77	# strictly for debugging
41		78	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
43	$YAML::Syck::ImplicitUnicode = 1;
44
45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
46		79
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	80	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
48		81
49	our %COMMAND = ();	82	our %COMMAND = ();
50	our %COMMAND_TIME = ();	83	our %COMMAND_TIME = ();
51		84
52	our @EXTS = (); # list of extension package names	85	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	86	our %EXTCMD = ();
		87	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	88	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	89	our %EXT_MAP = (); # pluggable maps
56		90
57	our $RELOAD; # number of reloads so far	91	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	92	our @EVENT;
59	our $LIBDIR = datadir . "/ext";	93
		94	our $CONFDIR = confdir;
		95	our $DATADIR = datadir;
		96	our $LIBDIR = "$DATADIR/ext";
		97	our $PODDIR = "$DATADIR/pod";
		98	our $MAPDIR = "$DATADIR/" . mapdir;
		99	our $LOCALDIR = localdir;
		100	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		101	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		102	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		103	our $RANDOMDIR = "$LOCALDIR/random";
		104	our $BDBDIR = "$LOCALDIR/db";
		105	our $PIDFILE = "$LOCALDIR/pid";
		106	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		107
		108	our %RESOURCE;
60		109
61	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	110	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
62	our $TICK_WATCHER;
63	our $AIO_POLL_WATCHER;
64	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	111	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
65	our $NEXT_TICK;	112	our $NEXT_TICK;
66	our $NOW;
67	our $USE_FSYNC = 1; # use fsync to write maps - default off	113	our $USE_FSYNC = 1; # use fsync to write maps - default on
68		114
		115	our $BDB_DEADLOCK_WATCHER;
		116	our $BDB_CHECKPOINT_WATCHER;
69	our $BDB_POLL_WATCHER;	117	our $BDB_TRICKLE_WATCHER;
70	our $DB_ENV;	118	our $DB_ENV;
		119
		120	our @EXTRA_MODULES = qw(pod mapscript);
71		121
72	our %CFG;	122	our %CFG;
73		123
74	our $UPTIME; $UPTIME ||= time;	124	our $UPTIME; $UPTIME ||= time;
75	our $RUNTIME;	125	our $RUNTIME;
		126	our $NOW;
76		127
77	our %PLAYER; # all users	128	our (%PLAYER, %PLAYER_LOADING); # all users
78	our %MAP; # all maps	129	our (%MAP, %MAP_LOADING ); # all maps
79	our $LINK_MAP; # the special {link} map, which is always available	130	our $LINK_MAP; # the special {link} map, which is always available
80	our $RANDOM_MAPS = cf::localdir . "/random";
81	our $BDB_ENV_DIR = cf::localdir . "/db";
82		131
83	# used to convert map paths into valid unix filenames by replacing / by ∕	132	# used to convert map paths into valid unix filenames by replacing / by ∕
84	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	133	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
85		134
		135	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		136	our $LOADAVG; # same thing, but with alpha-smoothing
		137	our $JITTER; # average jitter
		138	our $TICK_START; # for load detecting purposes
		139
		140	our @POST_INIT;
		141
		142	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		143	our $REALLY_UNLOOP; # never set to true, please :)
		144
86	binmode STDOUT;	145	binmode STDOUT;
87	binmode STDERR;	146	binmode STDERR;
88		147
89	# read virtual server time, if available	148	# read virtual server time, if available
90	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	149	unless ($RUNTIME || !-e $RUNTIMEFILE) {
91	open my $fh, "<", cf::localdir . "/runtime"	150	open my $fh, "<", $RUNTIMEFILE
92	or die "unable to read runtime file: $!";	151	or die "unable to read $RUNTIMEFILE file: $!";
93	$RUNTIME = <$fh> + 0.;	152	$RUNTIME = <$fh> + 0.;
94	}	153	}
95		154
96	mkdir cf::localdir;	155	eval "sub TICK() { $TICK } 1" or die;
97	mkdir cf::localdir . "/" . cf::playerdir;	156
98	mkdir cf::localdir . "/" . cf::tmpdir;	157	mkdir $_
99	mkdir cf::localdir . "/" . cf::uniquedir;	158	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
100	mkdir $RANDOM_MAPS;
101	mkdir $BDB_ENV_DIR;
102		159
103	our $EMERGENCY_POSITION;	160	our $EMERGENCY_POSITION;
104		161
105	sub cf::map::normalise;	162	sub cf::map::normalise;
106		163
…		…
117	=item $cf::RUNTIME	174	=item $cf::RUNTIME
118		175
119	The time this server has run, starts at 0 and is increased by $cf::TICK on	176	The time this server has run, starts at 0 and is increased by $cf::TICK on
120	every server tick.	177	every server tick.
121		178
122	=item $cf::LIBDIR	179	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		180	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		181	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
123		182
124	The perl library directory, where extensions and cf-specific modules can	183	Various directories - "/etc", read-only install directory, perl-library
125	be found. It will be added to C<@INC> automatically.	184	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		185	unique-items directory, player file directory, random maps directory and
		186	database environment.
126		187
127	=item $cf::NOW	188	=item $cf::NOW
128		189
129	The time of the last (current) server tick.	190	The time of the last (current) server tick.
130		191
131	=item $cf::TICK	192	=item $cf::TICK
132		193
133	The interval between server ticks, in seconds.	194	The interval between server ticks, in seconds.
134		195
		196	=item $cf::LOADAVG
		197
		198	The current CPU load on the server (alpha-smoothed), as a value between 0
		199	(none) and 1 (overloaded), indicating how much time is spent on processing
		200	objects per tick. Healthy values are < 0.5.
		201
		202	=item $cf::LOAD
		203
		204	The raw value load value from the last tick.
		205
135	=item %cf::CFG	206	=item %cf::CFG
136		207
137	Configuration for the server, loaded from C</etc/crossfire/config>, or	208	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
138	from wherever your confdir points to.	209	from wherever your confdir points to.
139		210
140	=item cf::wait_for_tick, cf::wait_for_tick_begin	211	=item cf::wait_for_tick, cf::wait_for_tick_begin
141		212
142	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	213	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
143	returns directly I<after> the tick processing (and consequently, can only wake one process	214	returns directly I<after> the tick processing (and consequently, can only wake one process
144	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	215	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
145		216
		217	=item @cf::INVOKE_RESULTS
		218
		219	This array contains the results of the last C<invoke ()> call. When
		220	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		221	that call.
		222
146	=back	223	=back
147		224
148	=cut	225	=cut
149		226
150	BEGIN {	227	$Coro::State::WARNHOOK = sub {
151	*CORE::GLOBAL::warn = sub {
152	my $msg = join "", @_;	228	my $msg = join "", @_;
153		229
154	$msg .= "\n"	230	$msg .= "\n"
155	unless $msg =~ /\n$/;	231	unless $msg =~ /\n$/;
156		232
157	$msg =~ s/([\x00-\x09\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	233	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
158		234
159	utf8::encode $msg;
160	LOG llevError, $msg;	235	LOG llevError, $msg;
161	};	236	};
162	}	237
		238	$Coro::State::DIEHOOK = sub {
		239	return unless $^S eq 0; # "eq", not "=="
		240
		241	warn Carp::longmess $_[0];
		242
		243	if ($Coro::current == $Coro::main) {#d#
		244	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		245	return;#d#
		246	}#d#
		247
		248	# kill coroutine otherwise
		249	Coro::terminate
		250	};
163		251
164	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	252	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
165	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	253	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
166	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	254	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
167	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	255	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
168	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	256	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		257	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
169	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	258	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
170		259
171	# we bless all objects into (empty) derived classes to force a method lookup	260	# we bless all objects into (empty) derived classes to force a method lookup
172	# within the Safe compartment.	261	# within the Safe compartment.
173	for my $pkg (qw(	262	for my $pkg (qw(
174	cf::global cf::attachable	263	cf::global cf::attachable
175	cf::object cf::object::player	264	cf::object cf::object::player
176	cf::client cf::player	265	cf::client cf::player
177	cf::arch cf::living	266	cf::arch cf::living
		267	cf::map cf::mapspace
178	cf::map cf::party cf::region	268	cf::party cf::region
179	)) {	269	)) {
180	no strict 'refs';
181	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	270	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
182	}	271	}
183		272
184	$Event::DIED = sub {	273	$EV::DIED = sub {
185	warn "error in event callback: @_";	274	warn "error in event callback: @_";
186	};	275	};
		276
		277	#############################################################################
187		278
188	=head2 UTILITY FUNCTIONS	279	=head2 UTILITY FUNCTIONS
189		280
190	=over 4	281	=over 4
191		282
…		…
210	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	301	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
211	$d	302	$d
212	} || "[unable to dump $_[0]: '$@']";	303	} || "[unable to dump $_[0]: '$@']";
213	}	304	}
214		305
215	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
216
217	=item $ref = cf::from_json $json	306	=item $ref = cf::decode_json $json
218		307
219	Converts a JSON string into the corresponding perl data structure.	308	Converts a JSON string into the corresponding perl data structure.
220		309
221	=item $json = cf::to_json $ref	310	=item $json = cf::encode_json $ref
222		311
223	Converts a perl data structure into its JSON representation.	312	Converts a perl data structure into its JSON representation.
224		313
		314	=cut
		315
		316	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		317
		318	sub encode_json($) { $json_coder->encode ($_[0]) }
		319	sub decode_json($) { $json_coder->decode ($_[0]) }
		320
		321	=item cf::post_init { BLOCK }
		322
		323	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		324	but I<before> the server starts ticking again.
		325
		326	The cdoeblock will have a single boolean argument to indicate whether this
		327	is a reload or not.
		328
		329	=cut
		330
		331	sub post_init(&) {
		332	push @POST_INIT, shift;
		333	}
		334
225	=item cf::lock_wait $string	335	=item cf::lock_wait $string
226		336
227	Wait until the given lock is available. See cf::lock_acquire.	337	Wait until the given lock is available. See cf::lock_acquire.
228		338
229	=item my $lock = cf::lock_acquire $string	339	=item my $lock = cf::lock_acquire $string
230		340
231	Wait until the given lock is available and then acquires it and returns	341	Wait until the given lock is available and then acquires it and returns
232	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	342	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
233	for example when the coroutine gets canceled), the lock is automatically	343	for example when the coroutine gets canceled), the lock is automatically
234	returned.	344	returned.
235		345
		346	Locks are *not* recursive, locking from the same coro twice results in a
		347	deadlocked coro.
		348
236	Lock names should begin with a unique identifier (for example, cf::map::find	349	Lock names should begin with a unique identifier (for example, cf::map::find
237	uses map_find and cf::map::load uses map_load).	350	uses map_find and cf::map::load uses map_load).
238		351
239	=cut	352	=item $locked = cf::lock_active $string
240		353
241	our %LOCK;	354	Return true if the lock is currently active, i.e. somebody has locked it.
		355
		356	=cut
		357
		358	our $LOCKS = new Coro::SemaphoreSet;
242		359
243	sub lock_wait($) {	360	sub lock_wait($) {
244	my ($key) = @_;	361	$LOCKS->wait ($_[0]);
245
246	# wait for lock, if any
247	while ($LOCK{$key}) {
248	push @{ $LOCK{$key} }, $Coro::current;
249	Coro::schedule;
250	}
251	}	362	}
252		363
253	sub lock_acquire($) {	364	sub lock_acquire($) {
254	my ($key) = @_;	365	$LOCKS->guard ($_[0])
		366	}
255		367
256	# wait, to be sure we are not locked	368	sub lock_active($) {
257	lock_wait $key;	369	$LOCKS->count ($_[0]) < 1
258
259	$LOCK{$key} = [];
260
261	Coro::guard {
262	# wake up all waiters, to be on the safe side
263	$_->ready for @{ delete $LOCK{$key} };
264	}
265	}	370	}
266		371
267	sub freeze_mainloop {	372	sub freeze_mainloop {
268	return unless $TICK_WATCHER->is_active;	373	tick_inhibit_inc;
269		374
270	my $guard = Coro::guard {	375	&Guard::guard (\&tick_inhibit_dec);
271	$TICK_WATCHER->start;	376	}
		377
		378	=item cf::periodic $interval, $cb
		379
		380	Like EV::periodic, but randomly selects a starting point so that the actions
		381	get spread over timer.
		382
		383	=cut
		384
		385	sub periodic($$) {
		386	my ($interval, $cb) = @_;
		387
		388	my $start = rand List::Util::min 180, $interval;
		389
		390	EV::periodic $start, $interval, 0, $cb
		391	}
		392
		393	=item cf::get_slot $time[, $priority[, $name]]
		394
		395	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		396	This call blocks and returns only when you have at least C<$time> seconds
		397	of cpu time till the next tick. The slot is only valid till the next cede.
		398
		399	The optional C<$name> can be used to identify the job to run. It might be
		400	used for statistical purposes and should identify the same time-class.
		401
		402	Useful for short background jobs.
		403
		404	=cut
		405
		406	our @SLOT_QUEUE;
		407	our $SLOT_QUEUE;
		408
		409	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		410	$SLOT_QUEUE = Coro::async {
		411	$Coro::current->desc ("timeslot manager");
		412
		413	my $signal = new Coro::Signal;
		414
		415	while () {
		416	next_job:
		417	my $avail = cf::till_tick;
		418	if ($avail > 0.01) {
		419	for (0 .. $#SLOT_QUEUE) {
		420	if ($SLOT_QUEUE[$_][0] < $avail) {
		421	my $job = splice @SLOT_QUEUE, $_, 1, ();
		422	$job->[2]->send;
		423	Coro::cede;
		424	goto next_job;
		425	}
		426	}
		427	}
		428
		429	if (@SLOT_QUEUE) {
		430	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		431	push @cf::WAIT_FOR_TICK, $signal;
		432	$signal->wait;
		433	} else {
		434	Coro::schedule;
		435	}
272	};	436	}
273	$TICK_WATCHER->stop;	437	};
274	$guard	438
		439	sub get_slot($;$$) {
		440	return if tick_inhibit || $Coro::current == $Coro::main;
		441
		442	my ($time, $pri, $name) = @_;
		443
		444	$time = $TICK * .6 if $time > $TICK * .6;
		445	my $sig = new Coro::Signal;
		446
		447	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		448	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		449	$SLOT_QUEUE->ready;
		450	$sig->wait;
275	}	451	}
276		452
277	=item cf::async { BLOCK }	453	=item cf::async { BLOCK }
278		454
279	Currently the same as Coro::async_pool, meaning you cannot use	455	Currently the same as Coro::async_pool, meaning you cannot use
…		…
284		460
285	BEGIN { *async = \&Coro::async_pool }	461	BEGIN { *async = \&Coro::async_pool }
286		462
287	=item cf::sync_job { BLOCK }	463	=item cf::sync_job { BLOCK }
288		464
289	The design of crossfire+ requires that the main coro ($Coro::main) is	465	The design of Deliantra requires that the main coroutine ($Coro::main)
290	always able to handle events or runnable, as crossfire+ is only partly	466	is always able to handle events or runnable, as Deliantra is only
291	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	467	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		468	acceptable.
292		469
293	If it must be done, put the blocking parts into C<sync_job>. This will run	470	If it must be done, put the blocking parts into C<sync_job>. This will run
294	the given BLOCK in another coroutine while waiting for the result. The	471	the given BLOCK in another coroutine while waiting for the result. The
295	server will be frozen during this time, so the block should either finish	472	server will be frozen during this time, so the block should either finish
296	fast or be very important.	473	fast or be very important.
…		…
299		476
300	sub sync_job(&) {	477	sub sync_job(&) {
301	my ($job) = @_;	478	my ($job) = @_;
302		479
303	if ($Coro::current == $Coro::main) {	480	if ($Coro::current == $Coro::main) {
		481	my $time = EV::time;
		482
304	# this is the main coro, too bad, we have to block	483	# this is the main coro, too bad, we have to block
305	# till the operation succeeds, freezing the server :/	484	# till the operation succeeds, freezing the server :/
306		485
307	# TODO: use suspend/resume instead	486	LOG llevError, Carp::longmess "sync job";#d#
308	# (but this is cancel-safe)	487
309	my $freeze_guard = freeze_mainloop;	488	my $freeze_guard = freeze_mainloop;
310		489
311	my $busy = 1;	490	my $busy = 1;
312	my @res;	491	my @res;
313		492
314	(async {	493	(async {
		494	$Coro::current->desc ("sync job coro");
315	@res = eval { $job->() };	495	@res = eval { $job->() };
316	warn $@ if $@;	496	warn $@ if $@;
317	undef $busy;	497	undef $busy;
318	})->prio (Coro::PRIO_MAX);	498	})->prio (Coro::PRIO_MAX);
319		499
320	while ($busy) {	500	while ($busy) {
321	Coro::cede or Event::one_event;	501	if (Coro::nready) {
		502	Coro::cede_notself;
		503	} else {
		504	EV::loop EV::LOOP_ONESHOT;
322	}	505	}
		506	}
		507
		508	my $time = EV::time - $time;
		509
		510	$TICK_START += $time; # do not account sync jobs to server load
323		511
324	wantarray ? @res : $res[0]	512	wantarray ? @res : $res[0]
325	} else {	513	} else {
326	# we are in another coroutine, how wonderful, everything just works	514	# we are in another coroutine, how wonderful, everything just works
327		515
…		…
347	$EXT_CORO{$coro+0} = $coro;	535	$EXT_CORO{$coro+0} = $coro;
348		536
349	$coro	537	$coro
350	}	538	}
351		539
352	sub write_runtime {	540	=item fork_call { }, $args
353	my $guard = cf::lock_acquire "write_runtime";
354		541
355	my $runtime = cf::localdir . "/runtime";	542	Executes the given code block with the given arguments in a seperate
		543	process, returning the results. Everything must be serialisable with
		544	Coro::Storable. May, of course, block. Note that the executed sub may
		545	never block itself or use any form of event handling.
356		546
357	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	547	=cut
358	or return;
359		548
360	my $value = $cf::RUNTIME + 90 + 10;	549	sub fork_call(&@) {
361	# 10 is the runtime save interval, for a monotonic clock	550	my ($cb, @args) = @_;
362	# 60 allows for the watchdog to kill the server.
363		551
364	(aio_write $fh, 0, (length $value), $value, 0) <= 0	552	# we seemingly have to make a local copy of the whole thing,
365	and return;	553	# otherwise perl prematurely frees the stuff :/
		554	# TODO: investigate and fix (likely this will be rather laborious)
366		555
367	# always fsync - this file is important	556	my @res = Coro::Util::fork_eval {
368	aio_fsync $fh	557	reset_signals;
369	and return;	558	&$cb
		559	}, @args;
370		560
371	close $fh	561	wantarray ? @res : $res[-1]
372	or return;	562	}
373		563
374	aio_rename "$runtime~", $runtime	564	=item $coin = coin_from_name $name
375	and return;
376		565
		566	=cut
		567
		568	our %coin_alias = (
		569	"silver" => "silvercoin",
		570	"silvercoin" => "silvercoin",
		571	"silvercoins" => "silvercoin",
		572	"gold" => "goldcoin",
		573	"goldcoin" => "goldcoin",
		574	"goldcoins" => "goldcoin",
		575	"platinum" => "platinacoin",
		576	"platinumcoin" => "platinacoin",
		577	"platinumcoins" => "platinacoin",
		578	"platina" => "platinacoin",
		579	"platinacoin" => "platinacoin",
		580	"platinacoins" => "platinacoin",
		581	"royalty" => "royalty",
		582	"royalties" => "royalty",
		583	);
		584
		585	sub coin_from_name($) {
		586	$coin_alias{$_[0]}
		587	? cf::arch::find $coin_alias{$_[0]}
		588	: undef
		589	}
		590
		591	=item $value = cf::db_get $family => $key
		592
		593	Returns a single value from the environment database.
		594
		595	=item cf::db_put $family => $key => $value
		596
		597	Stores the given C<$value> in the family. It can currently store binary
		598	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		599
		600	=item $db = cf::db_table "name"
		601
		602	Create and/or open a new database table. The string must not be "db" and must be unique
		603	within each server.
		604
		605	=cut
		606
		607	sub db_table($) {
		608	my ($name) = @_;
		609	my $db = BDB::db_create $DB_ENV;
		610
		611	eval {
		612	$db->set_flags (BDB::CHKSUM);
		613
		614	utf8::encode $name;
		615	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		616	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		617	cf::cleanup "db_open(db): $!" if $!;
		618	};
		619	cf::cleanup "db_open(db): $@" if $@;
		620
		621	$db
		622	}
		623
		624	our $DB;
		625
		626	sub db_init {
		627	cf::sync_job {
		628	$DB ||= db_table "db";
		629	};
		630	}
		631
		632	sub db_get($$) {
		633	my $key = "$_[0]/$_[1]";
		634
		635	cf::sync_job {
		636	BDB::db_get $DB, undef, $key, my $data;
		637
		638	$! ? ()
		639	: $data
377	1	640	}
		641	}
		642
		643	sub db_put($$$) {
		644	BDB::dbreq_pri 4;
		645	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		646	}
		647
		648	=item cf::cache $id => [$paths...], $processversion => $process
		649
		650	Generic caching function that returns the value of the resource $id,
		651	caching and regenerating as required.
		652
		653	This function can block.
		654
		655	=cut
		656
		657	sub cache {
		658	my ($id, $src, $processversion, $process) = @_;
		659
		660	my $meta =
		661	join "\x00",
		662	$processversion,
		663	map {
		664	aio_stat $_
		665	and Carp::croak "$_: $!";
		666
		667	($_, (stat _)[7,9])
		668	} @$src;
		669
		670	my $dbmeta = db_get cache => "$id/meta";
		671	if ($dbmeta ne $meta) {
		672	# changed, we may need to process
		673
		674	my @data;
		675	my $md5;
		676
		677	for (0 .. $#$src) {
		678	0 <= aio_load $src->[$_], $data[$_]
		679	or Carp::croak "$src->[$_]: $!";
		680	}
		681
		682	# if processing is expensive, check
		683	# checksum first
		684	if (1) {
		685	$md5 =
		686	join "\x00",
		687	$processversion,
		688	map {
		689	cf::cede_to_tick;
		690	($src->[$_], Digest::MD5::md5_hex $data[$_])
		691	} 0.. $#$src;
		692
		693
		694	my $dbmd5 = db_get cache => "$id/md5";
		695	if ($dbmd5 eq $md5) {
		696	db_put cache => "$id/meta", $meta;
		697
		698	return db_get cache => "$id/data";
		699	}
		700	}
		701
		702	my $t1 = Time::HiRes::time;
		703	my $data = $process->(\@data);
		704	my $t2 = Time::HiRes::time;
		705
		706	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		707
		708	db_put cache => "$id/data", $data;
		709	db_put cache => "$id/md5" , $md5;
		710	db_put cache => "$id/meta", $meta;
		711
		712	return $data;
		713	}
		714
		715	db_get cache => "$id/data"
378	}	716	}
379		717
380	=item cf::datalog type => key => value, ...	718	=item cf::datalog type => key => value, ...
381		719
382	Log a datalog packet of the given type with the given key-value pairs.	720	Log a datalog packet of the given type with the given key-value pairs.
…		…
394		732
395	#############################################################################	733	#############################################################################
396		734
397	=head2 ATTACHABLE OBJECTS	735	=head2 ATTACHABLE OBJECTS
398		736
399	Many objects in crossfire are so-called attachable objects. That means you can	737	Many objects in deliantra are so-called attachable objects. That means you can
400	attach callbacks/event handlers (a collection of which is called an "attachment")	738	attach callbacks/event handlers (a collection of which is called an "attachment")
401	to it. All such attachable objects support the following methods.	739	to it. All such attachable objects support the following methods.
402		740
403	In the following description, CLASS can be any of C<global>, C<object>	741	In the following description, CLASS can be any of C<global>, C<object>
404	C<player>, C<client> or C<map> (i.e. the attachable objects in	742	C<player>, C<client> or C<map> (i.e. the attachable objects in
405	crossfire+).	743	Deliantra).
406		744
407	=over 4	745	=over 4
408		746
409	=item $attachable->attach ($attachment, key => $value...)	747	=item $attachable->attach ($attachment, key => $value...)
410		748
…		…
454	=item cf::CLASS::attachment $name, ...	792	=item cf::CLASS::attachment $name, ...
455		793
456	Register an attachment by C<$name> through which attachable objects of the	794	Register an attachment by C<$name> through which attachable objects of the
457	given CLASS can refer to this attachment.	795	given CLASS can refer to this attachment.
458		796
459	Some classes such as crossfire maps and objects can specify attachments	797	Some classes such as deliantra maps and objects can specify attachments
460	that are attached at load/instantiate time, thus the need for a name.	798	that are attached at load/instantiate time, thus the need for a name.
461		799
462	These calls expect any number of the following handler/hook descriptions:	800	These calls expect any number of the following handler/hook descriptions:
463		801
464	=over 4	802	=over 4
…		…
573	$registry = $CB_TYPE[$object_type] ||= [];	911	$registry = $CB_TYPE[$object_type] ||= [];
574		912
575	} elsif ($type eq "subtype") {	913	} elsif ($type eq "subtype") {
576	defined $object_type or Carp::croak "subtype specified without type";	914	defined $object_type or Carp::croak "subtype specified without type";
577	my $object_subtype = shift @arg;	915	my $object_subtype = shift @arg;
578	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	916	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
579		917
580	} elsif ($type eq "package") {	918	} elsif ($type eq "package") {
581	my $pkg = shift @arg;	919	my $pkg = shift @arg;
582		920
583	while (my ($name, $id) = each %cb_id) {	921	while (my ($name, $id) = each %cb_id) {
…		…
612	_attach $registry, $klass, @attach;	950	_attach $registry, $klass, @attach;
613	}	951	}
614		952
615	$obj->{$name} = \%arg;	953	$obj->{$name} = \%arg;
616	} else {	954	} else {
617	warn "object uses attachment '$name' that is not available, postponing.\n";	955	warn "object uses attachment '$name' which is not available, postponing.\n";
618	}	956	}
619		957
620	$obj->{_attachment}{$name} = undef;	958	$obj->{_attachment}{$name} = undef;
621	}	959	}
622		960
…		…
624	if (ref $_[0]) {	962	if (ref $_[0]) {
625	_object_attach @_;	963	_object_attach @_;
626	} else {	964	} else {
627	_attach shift->_attach_registry, @_;	965	_attach shift->_attach_registry, @_;
628	}	966	}
		967	_recalc_want;
629	};	968	};
630		969
631	# all those should be optimised	970	# all those should be optimised
632	sub cf::attachable::detach {	971	sub cf::attachable::detach {
633	my ($obj, $name) = @_;	972	my ($obj, $name) = @_;
…		…
636	delete $obj->{_attachment}{$name};	975	delete $obj->{_attachment}{$name};
637	reattach ($obj);	976	reattach ($obj);
638	} else {	977	} else {
639	Carp::croak "cannot, currently, detach class attachments";	978	Carp::croak "cannot, currently, detach class attachments";
640	}	979	}
		980	_recalc_want;
641	};	981	};
642		982
643	sub cf::attachable::attached {	983	sub cf::attachable::attached {
644	my ($obj, $name) = @_;	984	my ($obj, $name) = @_;
645		985
…		…
660	";	1000	";
661	die if $@;	1001	die if $@;
662	}	1002	}
663		1003
664	our $override;	1004	our $override;
665	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1005	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
666		1006
667	sub override {	1007	sub override {
668	$override = 1;	1008	$override = 1;
669	@invoke_results = ();	1009	@INVOKE_RESULTS = (@_);
670	}	1010	}
671		1011
672	sub do_invoke {	1012	sub do_invoke {
673	my $event = shift;	1013	my $event = shift;
674	my $callbacks = shift;	1014	my $callbacks = shift;
675		1015
676	@invoke_results = ();	1016	@INVOKE_RESULTS = ();
677		1017
678	local $override;	1018	local $override;
679		1019
680	for (@$callbacks) {	1020	for (@$callbacks) {
681	eval { &{$_->[1]} };	1021	eval { &{$_->[1]} };
…		…
690	}	1030	}
691		1031
692	0	1032	0
693	}	1033	}
694		1034
695	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1035	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
696		1036
697	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1037	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
698		1038
699	Generate an object-specific event with the given arguments.	1039	Generate an object-specific event with the given arguments.
700		1040
701	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1041	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
702	removed in future versions), and there is no public API to access override	1042	removed in future versions), and there is no public API to access override
703	results (if you must, access C<@cf::invoke_results> directly).	1043	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
704		1044
705	=back	1045	=back
706		1046
707	=cut	1047	=cut
708		1048
709	#############################################################################	1049	#############################################################################
710	# object support	1050	# object support
		1051
		1052	sub _object_equal($$);
		1053	sub _object_equal($$) {
		1054	my ($a, $b) = @_;
		1055
		1056	return 0 unless (ref $a) eq (ref $b);
		1057
		1058	if ("HASH" eq ref $a) {
		1059	my @ka = keys %$a;
		1060	my @kb = keys %$b;
		1061
		1062	return 0 if @ka != @kb;
		1063
		1064	for (0 .. $#ka) {
		1065	return 0 unless $ka[$_] eq $kb[$_];
		1066	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1067	}
		1068
		1069	} elsif ("ARRAY" eq ref $a) {
		1070
		1071	return 0 if @$a != @$b;
		1072
		1073	for (0 .. $#$a) {
		1074	return 0 unless _object_equal $a->[$_], $b->[$_];
		1075	}
		1076
		1077	} elsif ($a ne $b) {
		1078	return 0;
		1079	}
		1080
		1081	1
		1082	}
		1083
		1084	our $SLOW_MERGES;#d#
		1085	sub _can_merge {
		1086	my ($ob1, $ob2) = @_;
		1087
		1088	++$SLOW_MERGES;#d#
		1089
		1090	# we do the slow way here
		1091	return _object_equal $ob1, $ob2
		1092	}
711		1093
712	sub reattach {	1094	sub reattach {
713	# basically do the same as instantiate, without calling instantiate	1095	# basically do the same as instantiate, without calling instantiate
714	my ($obj) = @_;	1096	my ($obj) = @_;
715		1097
		1098	# no longer needed after getting rid of delete_package?
716	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1099	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
717		1100
718	my $registry = $obj->registry;	1101	my $registry = $obj->registry;
719		1102
720	@$registry = ();	1103	@$registry = ();
721		1104
…		…
736	cf::attachable->attach (	1119	cf::attachable->attach (
737	prio => -1000000,	1120	prio => -1000000,
738	on_instantiate => sub {	1121	on_instantiate => sub {
739	my ($obj, $data) = @_;	1122	my ($obj, $data) = @_;
740		1123
741	$data = from_json $data;	1124	$data = decode_json $data;
742		1125
743	for (@$data) {	1126	for (@$data) {
744	my ($name, $args) = @$_;	1127	my ($name, $args) = @$_;
745		1128
746	$obj->attach ($name, %{$args || {} });	1129	$obj->attach ($name, %{$args || {} });
…		…
762	sub object_freezer_save {	1145	sub object_freezer_save {
763	my ($filename, $rdata, $objs) = @_;	1146	my ($filename, $rdata, $objs) = @_;
764		1147
765	sync_job {	1148	sync_job {
766	if (length $$rdata) {	1149	if (length $$rdata) {
		1150	utf8::decode (my $decname = $filename);
767	warn sprintf "saving %s (%d,%d)\n",	1151	warn sprintf "saving %s (%d,%d)\n",
768	$filename, length $$rdata, scalar @$objs;	1152	$decname, length $$rdata, scalar @$objs;
769		1153
770	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1154	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
771	chmod SAVE_MODE, $fh;	1155	aio_chmod $fh, SAVE_MODE;
772	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1156	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
773	aio_fsync $fh if $cf::USE_FSYNC;	1157	if ($cf::USE_FSYNC) {
		1158	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1159	aio_fsync $fh;
		1160	}
774	close $fh;	1161	aio_close $fh;
775		1162
776	if (@$objs) {	1163	if (@$objs) {
777	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1164	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
778	chmod SAVE_MODE, $fh;	1165	aio_chmod $fh, SAVE_MODE;
779	my $data = Storable::nfreeze { version => 1, objs => $objs };	1166	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
780	aio_write $fh, 0, (length $data), $data, 0;	1167	aio_write $fh, 0, (length $data), $data, 0;
781	aio_fsync $fh if $cf::USE_FSYNC;	1168	if ($cf::USE_FSYNC) {
		1169	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1170	aio_fsync $fh;
		1171	}
782	close $fh;	1172	aio_close $fh;
783	aio_rename "$filename.pst~", "$filename.pst";	1173	aio_rename "$filename.pst~", "$filename.pst";
784	}	1174	}
785	} else {	1175	} else {
786	aio_unlink "$filename.pst";	1176	aio_unlink "$filename.pst";
787	}	1177	}
788		1178
789	aio_rename "$filename~", $filename;	1179	aio_rename "$filename~", $filename;
		1180
		1181	$filename =~ s%/[^/]+$%%;
		1182	aio_pathsync $filename if $cf::USE_FSYNC;
790	} else {	1183	} else {
791	warn "FATAL: $filename~: $!\n";	1184	warn "unable to save objects: $filename~: $!\n";
792	}	1185	}
793	} else {	1186	} else {
794	aio_unlink $filename;	1187	aio_unlink $filename;
795	aio_unlink "$filename.pst";	1188	aio_unlink "$filename.pst";
796	}	1189	}
797	}	1190	};
798	}	1191	}
799		1192
800	sub object_freezer_as_string {	1193	sub object_freezer_as_string {
801	my ($rdata, $objs) = @_;	1194	my ($rdata, $objs) = @_;
802		1195
…		…
814	or return;	1207	or return;
815		1208
816	unless (aio_stat "$filename.pst") {	1209	unless (aio_stat "$filename.pst") {
817	(aio_load "$filename.pst", $av) >= 0	1210	(aio_load "$filename.pst", $av) >= 0
818	or return;	1211	or return;
		1212
819	$av = eval { (Storable::thaw $av)->{objs} };	1213	my $st = eval { Coro::Storable::thaw $av };
		1214	$av = $st->{objs};
820	}	1215	}
821		1216
		1217	utf8::decode (my $decname = $filename);
822	warn sprintf "loading %s (%d)\n",	1218	warn sprintf "loading %s (%d,%d)\n",
823	$filename, length $data, scalar @{$av || []};#d#	1219	$decname, length $data, scalar @{$av || []};
		1220
824	return ($data, $av);	1221	($data, $av)
825	}	1222	}
		1223
		1224	=head2 COMMAND CALLBACKS
		1225
		1226	=over 4
		1227
		1228	=cut
826		1229
827	#############################################################################	1230	#############################################################################
828	# command handling &c	1231	# command handling &c
829		1232
830	=item cf::register_command $name => \&callback($ob,$args);	1233	=item cf::register_command $name => \&callback($ob,$args);
…		…
843	push @{ $COMMAND{$name} }, [$caller, $cb];	1246	push @{ $COMMAND{$name} }, [$caller, $cb];
844	}	1247	}
845		1248
846	=item cf::register_extcmd $name => \&callback($pl,$packet);	1249	=item cf::register_extcmd $name => \&callback($pl,$packet);
847		1250
848	Register a callbackf ro execution when the client sends an extcmd packet.	1251	Register a callback for execution when the client sends an (synchronous)
		1252	extcmd packet. Ext commands will be processed in the order they are
		1253	received by the server, like other user commands. The first argument is
		1254	the logged-in player. Ext commands can only be processed after a player
		1255	has logged in successfully.
849		1256
850	If the callback returns something, it is sent back as if reply was being	1257	If the callback returns something, it is sent back as if reply was being
851	called.	1258	called.
852		1259
		1260	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1261
		1262	Register a callback for execution when the client sends an (asynchronous)
		1263	exticmd packet. Exti commands are processed by the server as soon as they
		1264	are received, i.e. out of order w.r.t. other commands. The first argument
		1265	is a client socket. Exti commands can be received anytime, even before
		1266	log-in.
		1267
		1268	If the callback returns something, it is sent back as if reply was being
		1269	called.
		1270
853	=cut	1271	=cut
854		1272
855	sub register_extcmd {	1273	sub register_extcmd {
856	my ($name, $cb) = @_;	1274	my ($name, $cb) = @_;
857		1275
858	$EXTCMD{$name} = $cb;	1276	$EXTCMD{$name} = $cb;
859	}	1277	}
		1278
		1279	sub register_exticmd {
		1280	my ($name, $cb) = @_;
		1281
		1282	$EXTICMD{$name} = $cb;
		1283	}
		1284
		1285	use File::Glob ();
860		1286
861	cf::player->attach (	1287	cf::player->attach (
862	on_command => sub {	1288	on_command => sub {
863	my ($pl, $name, $params) = @_;	1289	my ($pl, $name, $params) = @_;
864		1290
…		…
872	cf::override;	1298	cf::override;
873	},	1299	},
874	on_extcmd => sub {	1300	on_extcmd => sub {
875	my ($pl, $buf) = @_;	1301	my ($pl, $buf) = @_;
876		1302
877	my $msg = eval { from_json $buf };	1303	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
878		1304
879	if (ref $msg) {	1305	if (ref $msg) {
		1306	my ($type, $reply, @payload) =
		1307	"ARRAY" eq ref $msg
		1308	? @$msg
		1309	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1310
		1311	my @reply;
		1312
880	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1313	if (my $cb = $EXTCMD{$type}) {
881	if (my %reply = $cb->($pl, $msg)) {	1314	@reply = $cb->($pl, @payload);
882	$pl->ext_reply ($msg->{msgid}, %reply);
883	}
884	}	1315	}
		1316
		1317	$pl->ext_reply ($reply, @reply)
		1318	if $reply;
		1319
885	} else {	1320	} else {
886	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1321	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
887	}	1322	}
888		1323
889	cf::override;	1324	cf::override;
890	},	1325	},
891	);	1326	);
892		1327
		1328	# "readahead" all extensions
893	sub load_extension {	1329	sub cache_extensions {
894	my ($path) = @_;	1330	my $grp = IO::AIO::aio_group;
895		1331
896	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1332	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
897	my $base = $1;	1333	for (grep /\.ext$/, @{$_[0]}) {
898	my $pkg = $1;	1334	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
899	$pkg =~ s/[^[:word:]]/_/g;
900	$pkg = "ext::$pkg";
901
902	warn "... loading '$path' into '$pkg'\n";
903
904	open my $fh, "<:utf8", $path
905	or die "$path: $!";
906
907	my $source =
908	"package $pkg; use strict; use utf8;\n"
909	. "#line 1 \"$path\"\n{\n"
910	. (do { local $/; <$fh> })
911	. "\n};\n1";
912
913	unless (eval $source) {
914	my $msg = $@ ? "$path: $@\n"
915	: "extension disabled.\n";
916	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
917	warn $@;
918	warn "mandatory extension failed to load, exiting.\n";
919	exit 1;
920	}	1335	}
921	die $@;
922	}	1336	};
923		1337
924	push @EXTS, $pkg;	1338	$grp
925	}	1339	}
926		1340
927	sub load_extensions {	1341	sub load_extensions {
		1342	cf::sync_job {
		1343	my %todo;
		1344
928	for my $ext (<$LIBDIR/*.ext>) {	1345	for my $path (<$LIBDIR/*.ext>) {
929	next unless -r $ext;	1346	next unless -r $path;
930	eval {	1347
931	load_extension $ext;	1348	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1349	my $base = $1;
		1350	my $pkg = $1;
		1351	$pkg =~ s/[^[:word:]]/_/g;
		1352	$pkg = "ext::$pkg";
		1353
		1354	open my $fh, "<:utf8", $path
		1355	or die "$path: $!";
		1356
		1357	my $source = do { local $/; <$fh> };
		1358
		1359	my %ext = (
		1360	path => $path,
		1361	base => $base,
		1362	pkg => $pkg,
		1363	);
		1364
		1365	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1366	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1367
		1368	$ext{source} =
		1369	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1370	. "#line 1 \"$path\"\n{\n"
		1371	. $source
		1372	. "\n};\n1";
		1373
		1374	$todo{$base} = \%ext;
		1375	}
		1376
		1377	my %done;
		1378	while (%todo) {
		1379	my $progress;
		1380
		1381	while (my ($k, $v) = each %todo) {
		1382	for (split /,\s*/, $v->{meta}{depends}) {
		1383	goto skip
		1384	unless exists $done{$_};
		1385	}
		1386
		1387	warn "... loading '$k' into '$v->{pkg}'\n";
		1388
		1389	unless (eval $v->{source}) {
		1390	my $msg = $@ ? "$v->{path}: $@\n"
		1391	: "$v->{base}: extension inactive.\n";
		1392
		1393	if (exists $v->{meta}{mandatory}) {
		1394	warn $msg;
		1395	cf::cleanup "mandatory extension failed to load, exiting.";
		1396	}
		1397
		1398	warn $msg;
		1399	}
		1400
		1401	$done{$k} = delete $todo{$k};
		1402	push @EXTS, $v->{pkg};
		1403	$progress = 1;
932	1	1404	}
933	} or warn "$ext not loaded: $@";	1405
		1406	skip:
		1407	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1408	unless $progress;
		1409	}
934	}	1410	};
935	}	1411	}
936		1412
937	#############################################################################	1413	#############################################################################
938		1414
		1415	=back
		1416
939	=head2 CORE EXTENSIONS	1417	=head2 CORE EXTENSIONS
940		1418
941	Functions and methods that extend core crossfire objects.	1419	Functions and methods that extend core deliantra objects.
942		1420
943	=cut	1421	=cut
944		1422
945	package cf::player;	1423	package cf::player;
946		1424
…		…
948		1426
949	=head3 cf::player	1427	=head3 cf::player
950		1428
951	=over 4	1429	=over 4
952		1430
		1431	=item cf::player::num_playing
		1432
		1433	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1434
		1435	=cut
		1436
		1437	sub num_playing {
		1438	scalar grep
		1439	$_->ob->map
		1440	&& !$_->hidden
		1441	&& !$_->ob->flag (cf::FLAG_WIZ),
		1442	cf::player::list
		1443	}
		1444
953	=item cf::player::find $login	1445	=item cf::player::find $login
954		1446
955	Returns the given player object, loading it if necessary (might block).	1447	Returns the given player object, loading it if necessary (might block).
956		1448
957	=cut	1449	=cut
958		1450
959	sub playerdir($) {	1451	sub playerdir($) {
960	cf::localdir	1452	"$PLAYERDIR/"
961	. "/"
962	. cf::playerdir
963	. "/"
964	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1453	. (ref $_[0] ? $_[0]->ob->name : $_[0])
965	}	1454	}
966		1455
967	sub path($) {	1456	sub path($) {
968	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1457	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
…		…
978		1467
979	sub exists($) {	1468	sub exists($) {
980	my ($login) = @_;	1469	my ($login) = @_;
981		1470
982	$cf::PLAYER{$login}	1471	$cf::PLAYER{$login}
983	or cf::sync_job { !aio_stat path $login }	1472	or !aio_stat path $login
984	}	1473	}
985		1474
986	sub find($) {	1475	sub find($) {
987	return $cf::PLAYER{$_[0]} || do {	1476	return $cf::PLAYER{$_[0]} || do {
988	my $login = $_[0];	1477	my $login = $_[0];
…		…
995	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1484	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
996	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1485	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
997	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1486	aio_unlink +(playerdir $login) . "/$login.pl.pst";
998	aio_unlink +(playerdir $login) . "/$login.pl";	1487	aio_unlink +(playerdir $login) . "/$login.pl";
999		1488
1000	my $pl = load_pl path $login	1489	my $f = new_from_file cf::object::thawer path $login
1001	or return;	1490	or return;
		1491
		1492	my $pl = cf::player::load_pl $f
		1493	or return;
		1494
		1495	local $cf::PLAYER_LOADING{$login} = $pl;
		1496	$f->resolve_delayed_derefs;
1002	$cf::PLAYER{$login} = $pl	1497	$cf::PLAYER{$login} = $pl
1003	}	1498	}
1004	}	1499	}
1005	}	1500	}
1006		1501
…		…
1015	return if $pl->{deny_save};	1510	return if $pl->{deny_save};
1016		1511
1017	aio_mkdir playerdir $pl, 0770;	1512	aio_mkdir playerdir $pl, 0770;
1018	$pl->{last_save} = $cf::RUNTIME;	1513	$pl->{last_save} = $cf::RUNTIME;
1019		1514
		1515	cf::get_slot 0.01;
		1516
1020	$pl->save_pl ($path);	1517	$pl->save_pl ($path);
1021	Coro::cede;	1518	cf::cede_to_tick;
1022	}	1519	}
1023		1520
1024	sub new($) {	1521	sub new($) {
1025	my ($login) = @_;	1522	my ($login) = @_;
1026		1523
…		…
1032	$cf::PLAYER{$login} = $self;	1529	$cf::PLAYER{$login} = $self;
1033		1530
1034	$self	1531	$self
1035	}	1532	}
1036		1533
		1534	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1535
		1536	=cut
		1537
		1538	sub send_msg {
		1539	my $ns = shift->ns
		1540	or return;
		1541	$ns->send_msg (@_);
		1542	}
		1543
1037	=item $pl->quit_character	1544	=item $pl->quit_character
1038		1545
1039	Nukes the player without looking back. If logged in, the connection will	1546	Nukes the player without looking back. If logged in, the connection will
1040	be destroyed. May block for a long time.	1547	be destroyed. May block for a long time.
1041		1548
…		…
1045	my ($pl) = @_;	1552	my ($pl) = @_;
1046		1553
1047	my $name = $pl->ob->name;	1554	my $name = $pl->ob->name;
1048		1555
1049	$pl->{deny_save} = 1;	1556	$pl->{deny_save} = 1;
1050	$pl->password ("*"); # this should lock out the player until we nuked the dir	1557	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1051		1558
1052	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1559	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1053	$pl->deactivate;	1560	$pl->deactivate;
		1561	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1562	$pl->ob->check_score;
1054	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1563	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1055	$pl->ns->destroy if $pl->ns;	1564	$pl->ns->destroy if $pl->ns;
1056		1565
1057	my $path = playerdir $pl;	1566	my $path = playerdir $pl;
1058	my $temp = "$path~$cf::RUNTIME~deleting~";	1567	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1088	while and may block, so not sync_job-capable, ever.	1597	while and may block, so not sync_job-capable, ever.
1089		1598
1090	=cut	1599	=cut
1091		1600
1092	sub list_logins {	1601	sub list_logins {
1093	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1602	my $dirs = aio_readdir $PLAYERDIR
1094	or return [];	1603	or return [];
1095		1604
1096	my @logins;	1605	my @logins;
1097		1606
1098	for my $login (@$dirs) {	1607	for my $login (@$dirs) {
		1608	my $path = path $login;
		1609
		1610	# a .pst is a dead give-away for a valid player
		1611	# if no pst file found, open and chekc for blocked users
		1612	if (aio_stat "$path.pst") {
1099	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1613	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1100	aio_read $fh, 0, 512, my $buf, 0 or next;	1614	aio_read $fh, 0, 512, my $buf, 0 or next;
1101	$buf !~ /^password -------------$/m or next; # official not-valid tag	1615	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1616	}
1102		1617
1103	utf8::decode $login;	1618	utf8::decode $login;
1104	push @logins, $login;	1619	push @logins, $login;
1105	}	1620	}
1106		1621
…		…
1133	}	1648	}
1134		1649
1135	\@paths	1650	\@paths
1136	}	1651	}
1137		1652
		1653	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1654
		1655	Expand deliantra pod fragments into protocol xml.
		1656
1138	=item $player->ext_reply ($msgid, %msg)	1657	=item $player->ext_reply ($msgid, @msg)
1139		1658
1140	Sends an ext reply to the player.	1659	Sends an ext reply to the player.
1141		1660
1142	=cut	1661	=cut
1143		1662
1144	sub ext_reply($$%) {	1663	sub ext_reply($$@) {
1145	my ($self, $id, %msg) = @_;	1664	my ($self, $id, @msg) = @_;
1146		1665
1147	$msg{msgid} = $id;	1666	$self->ns->ext_reply ($id, @msg)
1148
1149	$self->send ("ext " . cf::to_json \%msg);
1150	}	1667	}
1151		1668
1152	=item $player->ext_event ($type, %msg)	1669	=item $player->ext_msg ($type, @msg)
1153		1670
1154	Sends an ext event to the client.	1671	Sends an ext event to the client.
1155		1672
1156	=cut	1673	=cut
1157		1674
1158	sub ext_event($$%) {	1675	sub ext_msg($$@) {
1159	my ($self, $type, %msg) = @_;	1676	my ($self, $type, @msg) = @_;
1160		1677
1161	$self->ns->ext_event ($type, %msg);	1678	$self->ns->ext_msg ($type, @msg);
1162	}	1679	}
1163		1680
1164	=head3 cf::region	1681	=head3 cf::region
1165		1682
1166	=over 4	1683	=over 4
…		…
1169		1686
1170	package cf::region;	1687	package cf::region;
1171		1688
1172	=item cf::region::find_by_path $path	1689	=item cf::region::find_by_path $path
1173		1690
1174	Tries to decuce the probable region for a map knowing only its path.	1691	Tries to decuce the likely region for a map knowing only its path.
1175		1692
1176	=cut	1693	=cut
1177		1694
1178	sub find_by_path($) {	1695	sub find_by_path($) {
1179	my ($path) = @_;	1696	my ($path) = @_;
1180		1697
1181	my ($match, $specificity);	1698	my ($match, $specificity);
1182		1699
1183	for my $region (list) {	1700	for my $region (list) {
1184	if ($region->match && $path =~ $region->match) {	1701	if ($region->{match} && $path =~ $region->{match}) {
1185	($match, $specificity) = ($region, $region->specificity)	1702	($match, $specificity) = ($region, $region->specificity)
1186	if $region->specificity > $specificity;	1703	if $region->specificity > $specificity;
1187	}	1704	}
1188	}	1705	}
1189		1706
…		…
1210	our $MAX_RESET = 3600;	1727	our $MAX_RESET = 3600;
1211	our $DEFAULT_RESET = 3000;	1728	our $DEFAULT_RESET = 3000;
1212		1729
1213	sub generate_random_map {	1730	sub generate_random_map {
1214	my ($self, $rmp) = @_;	1731	my ($self, $rmp) = @_;
		1732
		1733	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1734
1215	# mit "rum" bekleckern, nicht	1735	# mit "rum" bekleckern, nicht
1216	$self->_create_random_map (	1736	$self->_create_random_map (
1217	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1737	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1218	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1738	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1219	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1739	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1253	my ($self, $merge) = @_;	1773	my ($self, $merge) = @_;
1254		1774
1255	# we have to keep some variables in memory intact	1775	# we have to keep some variables in memory intact
1256	local $self->{path};	1776	local $self->{path};
1257	local $self->{load_path};	1777	local $self->{load_path};
1258	local $self->{deny_save};
1259	local $self->{deny_reset};
1260		1778
1261	$self->SUPER::thawer_merge ($merge);	1779	$self->SUPER::thawer_merge ($merge);
1262	}	1780	}
1263		1781
1264	sub normalise {	1782	sub normalise {
…		…
1311	$self->init; # pass $1 etc.	1829	$self->init; # pass $1 etc.
1312	return $self;	1830	return $self;
1313	}	1831	}
1314	}	1832	}
1315		1833
1316	Carp::carp "unable to resolve path '$path' (base '$base').";	1834	Carp::cluck "unable to resolve path '$path' (base '$base').";
1317	()	1835	()
1318	}	1836	}
1319		1837
1320	sub init {	1838	sub init {
1321	my ($self) = @_;	1839	my ($self) = @_;
…		…
1336		1854
1337	# the original (read-only) location	1855	# the original (read-only) location
1338	sub load_path {	1856	sub load_path {
1339	my ($self) = @_;	1857	my ($self) = @_;
1340		1858
1341	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1859	"$MAPDIR/$self->{path}.map"
1342	}	1860	}
1343		1861
1344	# the temporary/swap location	1862	# the temporary/swap location
1345	sub save_path {	1863	sub save_path {
1346	my ($self) = @_;	1864	my ($self) = @_;
1347		1865
1348	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1866	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1349	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1867	"$TMPDIR/$path.map"
1350	}	1868	}
1351		1869
1352	# the unique path, undef == no special unique path	1870	# the unique path, undef == no special unique path
1353	sub uniq_path {	1871	sub uniq_path {
1354	my ($self) = @_;	1872	my ($self) = @_;
1355		1873
1356	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1874	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1357	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1875	"$UNIQUEDIR/$path"
1358	}	1876	}
1359		1877
1360	# and all this just because we cannot iterate over	1878	sub decay_objects {
1361	# all maps in C++...
1362	sub change_all_map_light {
1363	my ($change) = @_;	1879	my ($self) = @_;
1364		1880
1365	$_->change_map_light ($change)	1881	return if $self->{deny_reset};
1366	for grep $_->outdoor, values %cf::MAP;	1882
		1883	$self->do_decay_objects;
1367	}	1884	}
1368		1885
1369	sub unlink_save {	1886	sub unlink_save {
1370	my ($self) = @_;	1887	my ($self) = @_;
1371		1888
…		…
1376		1893
1377	sub load_header_from($) {	1894	sub load_header_from($) {
1378	my ($self, $path) = @_;	1895	my ($self, $path) = @_;
1379		1896
1380	utf8::encode $path;	1897	utf8::encode $path;
1381	#aio_open $path, O_RDONLY, 0	1898	my $f = new_from_file cf::object::thawer $path
1382	# or return;
1383
1384	$self->_load_header ($path)
1385	or return;	1899	or return;
		1900
		1901	$self->_load_header ($f)
		1902	or return;
		1903
		1904	local $MAP_LOADING{$self->{path}} = $self;
		1905	$f->resolve_delayed_derefs;
1386		1906
1387	$self->{load_path} = $path;	1907	$self->{load_path} = $path;
1388		1908
1389	1	1909	1
1390	}	1910	}
…		…
1429	$self->load_header_orig	1949	$self->load_header_orig
1430	or return;	1950	or return;
1431	$self->prepare_orig;	1951	$self->prepare_orig;
1432	}	1952	}
1433		1953
		1954	$self->{deny_reset} = 1
		1955	if $self->no_reset;
		1956
1434	$self->default_region (cf::region::find_by_path $self->{path})	1957	$self->default_region (cf::region::find_by_path $self->{path})
1435	unless $self->default_region;	1958	unless $self->default_region;
1436		1959
1437	1	1960	1
1438	}	1961	}
…		…
1441	sub find {	1964	sub find {
1442	my ($path, $origin) = @_;	1965	my ($path, $origin) = @_;
1443		1966
1444	$path = normalise $path, $origin && $origin->path;	1967	$path = normalise $path, $origin && $origin->path;
1445		1968
		1969	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1446	cf::lock_wait "map_find:$path";	1970	my $guard2 = cf::lock_acquire "map_find:$path";
1447		1971
1448	$cf::MAP{$path} || do {	1972	$cf::MAP{$path} || do {
1449	my $guard = cf::lock_acquire "map_find:$path";
1450	my $map = new_from_path cf::map $path	1973	my $map = new_from_path cf::map $path
1451	or return;	1974	or return;
1452		1975
1453	$map->{last_save} = $cf::RUNTIME;	1976	$map->{last_save} = $cf::RUNTIME;
1454		1977
1455	$map->load_header	1978	$map->load_header
1456	or return;	1979	or return;
1457		1980
1458	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1981	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1459	# doing this can freeze the server in a sync job, obviously	1982	# doing this can freeze the server in a sync job, obviously
1460	#$cf::WAIT_FOR_TICK->wait;	1983	#$cf::WAIT_FOR_TICK->wait;
		1984	undef $guard2;
		1985	undef $guard1;
1461	$map->reset;	1986	$map->reset;
1462	undef $guard;
1463	return find $path;	1987	return find $path;
1464	}	1988	}
1465		1989
1466	$cf::MAP{$path} = $map	1990	$cf::MAP{$path} = $map
1467	}	1991	}
…		…
1474	my ($self) = @_;	1998	my ($self) = @_;
1475		1999
1476	local $self->{deny_reset} = 1; # loading can take a long time	2000	local $self->{deny_reset} = 1; # loading can take a long time
1477		2001
1478	my $path = $self->{path};	2002	my $path = $self->{path};
		2003
		2004	{
1479	my $guard = cf::lock_acquire "map_load:$path";	2005	my $guard = cf::lock_acquire "map_data:$path";
1480		2006
		2007	return unless $self->valid;
1481	return if $self->in_memory != cf::MAP_SWAPPED;	2008	return unless $self->in_memory == cf::MAP_SWAPPED;
1482		2009
1483	$self->in_memory (cf::MAP_LOADING);	2010	$self->in_memory (cf::MAP_LOADING);
1484		2011
1485	$self->alloc;	2012	$self->alloc;
1486		2013
1487	$self->pre_load;	2014	$self->pre_load;
1488	Coro::cede;	2015	cf::cede_to_tick;
1489		2016
1490	$self->_load_objects ($self->{load_path}, 1)	2017	my $f = new_from_file cf::object::thawer $self->{load_path};
		2018	$f->skip_block;
		2019	$self->_load_objects ($f)
1491	or return;	2020	or return;
1492		2021
1493	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2022	$self->post_load_original
1494	if delete $self->{load_original};	2023	if delete $self->{load_original};
1495		2024
1496	if (my $uniq = $self->uniq_path) {	2025	if (my $uniq = $self->uniq_path) {
1497	utf8::encode $uniq;	2026	utf8::encode $uniq;
1498	if (aio_open $uniq, O_RDONLY, 0) {	2027	unless (aio_stat $uniq) {
		2028	if (my $f = new_from_file cf::object::thawer $uniq) {
1499	$self->clear_unique_items;	2029	$self->clear_unique_items;
1500	$self->_load_objects ($uniq, 0);	2030	$self->_load_objects ($f);
		2031	$f->resolve_delayed_derefs;
		2032	}
1501	}	2033	}
1502	}	2034	}
1503		2035
1504	Coro::cede;	2036	$f->resolve_delayed_derefs;
		2037
		2038	cf::cede_to_tick;
1505	# now do the right thing for maps	2039	# now do the right thing for maps
1506	$self->link_multipart_objects;	2040	$self->link_multipart_objects;
1507	Coro::cede;
1508
1509	unless ($self->{deny_activate}) {
1510	$self->decay_objects;
1511	$self->fix_auto_apply;
1512	$self->update_buttons;
1513	Coro::cede;
1514	$self->set_darkness_map;
1515	$self->difficulty ($self->estimate_difficulty)	2041	$self->difficulty ($self->estimate_difficulty)
1516	unless $self->difficulty;	2042	unless $self->difficulty;
1517	Coro::cede;	2043	cf::cede_to_tick;
		2044
		2045	unless ($self->{deny_activate}) {
		2046	$self->decay_objects;
		2047	$self->fix_auto_apply;
		2048	$self->update_buttons;
		2049	cf::cede_to_tick;
1518	$self->activate;	2050	$self->activate;
1519	Coro::cede;	2051	}
		2052
		2053	$self->{last_save} = $cf::RUNTIME;
		2054	$self->last_access ($cf::RUNTIME);
		2055
		2056	$self->in_memory (cf::MAP_ACTIVE);
1520	}	2057	}
1521		2058
1522	$self->post_load;	2059	$self->post_load;
1523	Coro::cede;
1524
1525	$self->in_memory (cf::MAP_IN_MEMORY);
1526	}	2060	}
1527		2061
1528	sub customise_for {	2062	sub customise_for {
1529	my ($self, $ob) = @_;	2063	my ($self, $ob) = @_;
1530		2064
1531	return find "~" . $ob->name . "/" . $self->{path}	2065	return find "~" . $ob->name . "/" . $self->{path}
1532	if $self->per_player;	2066	if $self->per_player;
1533		2067
		2068	# return find "?party/" . $ob->name . "/" . $self->{path}
		2069	# if $self->per_party;
		2070
1534	$self	2071	$self
1535	}	2072	}
1536		2073
1537	# find and load all maps in the 3x3 area around a map	2074	# find and load all maps in the 3x3 area around a map
1538	sub load_diag {	2075	sub load_neighbours {
1539	my ($map) = @_;	2076	my ($map) = @_;
1540		2077
1541	my @diag; # diagonal neighbours	2078	my @neigh; # diagonal neighbours
1542		2079
1543	for (0 .. 3) {	2080	for (0 .. 3) {
1544	my $neigh = $map->tile_path ($_)	2081	my $neigh = $map->tile_path ($_)
1545	or next;	2082	or next;
1546	$neigh = find $neigh, $map	2083	$neigh = find $neigh, $map
1547	or next;	2084	or next;
1548	$neigh->load;	2085	$neigh->load;
1549		2086
		2087	push @neigh,
1550	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2088	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1551	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2089	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1552	}	2090	}
1553		2091
1554	for (@diag) {	2092	for (grep defined $_->[0], @neigh) {
		2093	my ($path, $origin) = @$_;
1555	my $neigh = find @$_	2094	my $neigh = find $path, $origin
1556	or next;	2095	or next;
1557	$neigh->load;	2096	$neigh->load;
1558	}	2097	}
1559	}	2098	}
1560		2099
…		…
1565	}	2104	}
1566		2105
1567	sub do_load_sync {	2106	sub do_load_sync {
1568	my ($map) = @_;	2107	my ($map) = @_;
1569		2108
		2109	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2110	if $Coro::current == $Coro::main;
		2111
1570	cf::sync_job { $map->load };	2112	cf::sync_job { $map->load };
1571	}	2113	}
1572		2114
1573	our %MAP_PREFETCH;	2115	our %MAP_PREFETCH;
1574	our $MAP_PREFETCHER = undef;	2116	our $MAP_PREFETCHER = undef;
1575		2117
1576	sub find_async {	2118	sub find_async {
1577	my ($path, $origin) = @_;	2119	my ($path, $origin, $load) = @_;
1578		2120
1579	$path = normalise $path, $origin && $origin->{path};	2121	$path = normalise $path, $origin && $origin->{path};
1580		2122
1581	if (my $map = $cf::MAP{$path}) {	2123	if (my $map = $cf::MAP{$path}) {
1582	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2124	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1583	}	2125	}
1584		2126
1585	undef $MAP_PREFETCH{$path};	2127	$MAP_PREFETCH{$path} |= $load;
		2128
1586	$MAP_PREFETCHER ||= cf::async {	2129	$MAP_PREFETCHER ||= cf::async {
		2130	$Coro::current->{desc} = "map prefetcher";
		2131
1587	while (%MAP_PREFETCH) {	2132	while (%MAP_PREFETCH) {
1588	for my $path (keys %MAP_PREFETCH) {	2133	while (my ($k, $v) = each %MAP_PREFETCH) {
1589	my $map = find $path	2134	if (my $map = find $k) {
1590	or next;
1591	$map->load;	2135	$map->load if $v;
		2136	}
1592		2137
1593	delete $MAP_PREFETCH{$path};	2138	delete $MAP_PREFETCH{$k};
1594	}	2139	}
1595	}	2140	}
1596	undef $MAP_PREFETCHER;	2141	undef $MAP_PREFETCHER;
1597	};	2142	};
1598	$MAP_PREFETCHER->prio (6);	2143	$MAP_PREFETCHER->prio (6);
…		…
1601	}	2146	}
1602		2147
1603	sub save {	2148	sub save {
1604	my ($self) = @_;	2149	my ($self) = @_;
1605		2150
1606	my $lock = cf::lock_acquire "map_data:" . $self->path;	2151	my $lock = cf::lock_acquire "map_data:$self->{path}";
1607		2152
1608	$self->{last_save} = $cf::RUNTIME;	2153	$self->{last_save} = $cf::RUNTIME;
1609		2154
1610	return unless $self->dirty;	2155	return unless $self->dirty;
1611		2156
…		…
1617	return if $self->{deny_save};	2162	return if $self->{deny_save};
1618		2163
1619	local $self->{last_access} = $self->last_access;#d#	2164	local $self->{last_access} = $self->last_access;#d#
1620		2165
1621	cf::async {	2166	cf::async {
		2167	$Coro::current->{desc} = "map player save";
1622	$_->contr->save for $self->players;	2168	$_->contr->save for $self->players;
1623	};	2169	};
		2170
		2171	cf::get_slot 0.02;
1624		2172
1625	if ($uniq) {	2173	if ($uniq) {
1626	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2174	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1627	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2175	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1628	} else {	2176	} else {
…		…
1634	my ($self) = @_;	2182	my ($self) = @_;
1635		2183
1636	# save first because save cedes	2184	# save first because save cedes
1637	$self->save;	2185	$self->save;
1638		2186
1639	my $lock = cf::lock_acquire "map_data:" . $self->path;	2187	my $lock = cf::lock_acquire "map_data:$self->{path}";
1640		2188
1641	return if $self->players;	2189	return if $self->players;
1642	return if $self->in_memory != cf::MAP_IN_MEMORY;	2190	return if $self->in_memory != cf::MAP_ACTIVE;
1643	return if $self->{deny_save};	2191	return if $self->{deny_save};
1644		2192
		2193	$self->in_memory (cf::MAP_SWAPPED);
		2194
		2195	$self->deactivate;
		2196	$_->clear_links_to ($self) for values %cf::MAP;
1645	$self->clear;	2197	$self->clear;
1646	$self->in_memory (cf::MAP_SWAPPED);
1647	}	2198	}
1648		2199
1649	sub reset_at {	2200	sub reset_at {
1650	my ($self) = @_;	2201	my ($self) = @_;
1651		2202
1652	# TODO: safety, remove and allow resettable per-player maps	2203	# TODO: safety, remove and allow resettable per-player maps
1653	return 1e99 if $self->isa ("ext::map_per_player");#d#
1654	return 1e99 if $self->{deny_reset};	2204	return 1e99 if $self->{deny_reset};
1655		2205
1656	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2206	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1657	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2207	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1658		2208
…		…
1669	my ($self) = @_;	2219	my ($self) = @_;
1670		2220
1671	my $lock = cf::lock_acquire "map_data:$self->{path}";	2221	my $lock = cf::lock_acquire "map_data:$self->{path}";
1672		2222
1673	return if $self->players;	2223	return if $self->players;
1674	return if $self->isa ("ext::map_per_player");#d#
1675		2224
1676	warn "resetting map ", $self->path;#d#	2225	warn "resetting map ", $self->path, "\n";
1677		2226
1678	$self->in_memory (cf::MAP_SWAPPED);	2227	$self->in_memory (cf::MAP_SWAPPED);
1679		2228
1680	# need to save uniques path	2229	# need to save uniques path
1681	unless ($self->{deny_save}) {	2230	unless ($self->{deny_save}) {
…		…
1685	if $uniq;	2234	if $uniq;
1686	}	2235	}
1687		2236
1688	delete $cf::MAP{$self->path};	2237	delete $cf::MAP{$self->path};
1689		2238
		2239	$self->deactivate;
		2240	$_->clear_links_to ($self) for values %cf::MAP;
1690	$self->clear;	2241	$self->clear;
1691
1692	$_->clear_links_to ($self) for values %cf::MAP;
1693		2242
1694	$self->unlink_save;	2243	$self->unlink_save;
1695	$self->destroy;	2244	$self->destroy;
1696	}	2245	}
1697		2246
1698	my $nuke_counter = "aaaa";	2247	my $nuke_counter = "aaaa";
1699		2248
1700	sub nuke {	2249	sub nuke {
1701	my ($self) = @_;	2250	my ($self) = @_;
1702		2251
		2252	{
		2253	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2254
1703	delete $cf::MAP{$self->path};	2255	delete $cf::MAP{$self->path};
1704		2256
1705	$self->unlink_save;	2257	$self->unlink_save;
1706		2258
1707	bless $self, "cf::map";	2259	bless $self, "cf::map";
1708	delete $self->{deny_reset};	2260	delete $self->{deny_reset};
1709	$self->{deny_save} = 1;	2261	$self->{deny_save} = 1;
1710	$self->reset_timeout (1);	2262	$self->reset_timeout (1);
1711	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2263	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1712		2264
1713	$cf::MAP{$self->path} = $self;	2265	$cf::MAP{$self->path} = $self;
		2266	}
1714		2267
1715	$self->reset; # polite request, might not happen	2268	$self->reset; # polite request, might not happen
		2269	}
		2270
		2271	=item $maps = cf::map::tmp_maps
		2272
		2273	Returns an arrayref with all map paths of currently instantiated and saved
		2274	maps. May block.
		2275
		2276	=cut
		2277
		2278	sub tmp_maps() {
		2279	[
		2280	map {
		2281	utf8::decode $_;
		2282	/\.map$/
		2283	? normalise $_
		2284	: ()
		2285	} @{ aio_readdir $TMPDIR or [] }
		2286	]
		2287	}
		2288
		2289	=item $maps = cf::map::random_maps
		2290
		2291	Returns an arrayref with all map paths of currently instantiated and saved
		2292	random maps. May block.
		2293
		2294	=cut
		2295
		2296	sub random_maps() {
		2297	[
		2298	map {
		2299	utf8::decode $_;
		2300	/\.map$/
		2301	? normalise "?random/$_"
		2302	: ()
		2303	} @{ aio_readdir $RANDOMDIR or [] }
		2304	]
1716	}	2305	}
1717		2306
1718	=item cf::map::unique_maps	2307	=item cf::map::unique_maps
1719		2308
1720	Returns an arrayref of paths of all shared maps that have	2309	Returns an arrayref of paths of all shared maps that have
1721	instantiated unique items. May block.	2310	instantiated unique items. May block.
1722		2311
1723	=cut	2312	=cut
1724		2313
1725	sub unique_maps() {	2314	sub unique_maps() {
1726	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2315	[
1727	or return;	2316	map {
1728
1729	my @paths;
1730
1731	for (@$files) {
1732	utf8::decode $_;	2317	utf8::decode $_;
1733	next if /\.pst$/;	2318	s/\.map$//; # TODO future compatibility hack
1734	next unless /^$PATH_SEP/o;	2319	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1735		2320	? ()
1736	push @paths, cf::map::normalise $_;	2321	: normalise $_
		2322	} @{ aio_readdir $UNIQUEDIR or [] }
1737	}	2323	]
1738
1739	\@paths
1740	}	2324	}
1741
1742	package cf;
1743		2325
1744	=back	2326	=back
1745		2327
1746	=head3 cf::object	2328	=head3 cf::object
1747		2329
…		…
1751		2333
1752	=over 4	2334	=over 4
1753		2335
1754	=item $ob->inv_recursive	2336	=item $ob->inv_recursive
1755		2337
1756	Returns the inventory of the object _and_ their inventories, recursively.	2338	Returns the inventory of the object I<and> their inventories, recursively,
		2339	but I<not> the object itself.
1757		2340
1758	=cut	2341	=cut
1759		2342
1760	sub inv_recursive_;	2343	sub inv_recursive_;
1761	sub inv_recursive_ {	2344	sub inv_recursive_ {
…		…
1764		2347
1765	sub inv_recursive {	2348	sub inv_recursive {
1766	inv_recursive_ inv $_[0]	2349	inv_recursive_ inv $_[0]
1767	}	2350	}
1768		2351
		2352	=item $ref = $ob->ref
		2353
		2354	Creates and returns a persistent reference to an object that can be stored as a string.
		2355
		2356	=item $ob = cf::object::deref ($refstring)
		2357
		2358	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2359	even if the object actually exists. May block.
		2360
		2361	=cut
		2362
		2363	sub deref {
		2364	my ($ref) = @_;
		2365
		2366	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2367	my ($uuid, $name) = ($1, $2);
		2368	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2369	or return;
		2370	$pl->ob->uuid eq $uuid
		2371	or return;
		2372
		2373	$pl->ob
		2374	} else {
		2375	warn "$ref: cannot resolve object reference\n";
		2376	undef
		2377	}
		2378	}
		2379
1769	package cf;	2380	package cf;
1770		2381
1771	=back	2382	=back
1772		2383
1773	=head3 cf::object::player	2384	=head3 cf::object::player
…		…
1779	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2390	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1780	can be C<undef>. Does the right thing when the player is currently in a	2391	can be C<undef>. Does the right thing when the player is currently in a
1781	dialogue with the given NPC character.	2392	dialogue with the given NPC character.
1782		2393
1783	=cut	2394	=cut
		2395
		2396	our $SAY_CHANNEL = {
		2397	id => "say",
		2398	title => "Map",
		2399	reply => "say ",
		2400	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2401	};
		2402
		2403	our $CHAT_CHANNEL = {
		2404	id => "chat",
		2405	title => "Chat",
		2406	reply => "chat ",
		2407	tooltip => "Player chat and shouts, global to the server.",
		2408	};
1784		2409
1785	# rough implementation of a future "reply" method that works	2410	# rough implementation of a future "reply" method that works
1786	# with dialog boxes.	2411	# with dialog boxes.
1787	#TODO: the first argument must go, split into a $npc->reply_to ( method	2412	#TODO: the first argument must go, split into a $npc->reply_to ( method
1788	sub cf::object::player::reply($$$;$) {	2413	sub cf::object::player::reply($$$;$) {
…		…
1790		2415
1791	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2416	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1792		2417
1793	if ($self->{record_replies}) {	2418	if ($self->{record_replies}) {
1794	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2419	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2420
1795	} else {	2421	} else {
		2422	my $pl = $self->contr;
		2423
		2424	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2425	my $dialog = $pl->{npc_dialog};
		2426	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2427
		2428	} else {
1796	$msg = $npc->name . " says: $msg" if $npc;	2429	$msg = $npc->name . " says: $msg" if $npc;
1797	$self->message ($msg, $flags);	2430	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2431	}
1798	}	2432	}
		2433	}
		2434
		2435	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2436
		2437	=cut
		2438
		2439	sub cf::object::send_msg {
		2440	my $pl = shift->contr
		2441	or return;
		2442	$pl->send_msg (@_);
1799	}	2443	}
1800		2444
1801	=item $player_object->may ("access")	2445	=item $player_object->may ("access")
1802		2446
1803	Returns wether the given player is authorized to access resource "access"	2447	Returns wether the given player is authorized to access resource "access"
…		…
1816		2460
1817	=item $player_object->enter_link	2461	=item $player_object->enter_link
1818		2462
1819	Freezes the player and moves him/her to a special map (C<{link}>).	2463	Freezes the player and moves him/her to a special map (C<{link}>).
1820		2464
1821	The player should be reasonably safe there for short amounts of time. You	2465	The player should be reasonably safe there for short amounts of time (e.g.
1822	I<MUST> call C<leave_link> as soon as possible, though.	2466	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2467	though, as the palyer cannot control the character while it is on the link
		2468	map.
1823		2469
1824	Will never block.	2470	Will never block.
1825		2471
1826	=item $player_object->leave_link ($map, $x, $y)	2472	=item $player_object->leave_link ($map, $x, $y)
1827		2473
…		…
1850	$self->deactivate_recursive;	2496	$self->deactivate_recursive;
1851		2497
1852	return if UNIVERSAL::isa $self->map, "ext::map_link";	2498	return if UNIVERSAL::isa $self->map, "ext::map_link";
1853		2499
1854	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2500	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1855	if $self->map;	2501	if $self->map && $self->map->{path} ne "{link}";
1856		2502
1857	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2503	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1858	}	2504	}
1859		2505
1860	sub cf::object::player::leave_link {	2506	sub cf::object::player::leave_link {
1861	my ($self, $map, $x, $y) = @_;	2507	my ($self, $map, $x, $y) = @_;
		2508
		2509	return unless $self->contr->active;
1862		2510
1863	my $link_pos = delete $self->{_link_pos};	2511	my $link_pos = delete $self->{_link_pos};
1864		2512
1865	unless ($map) {	2513	unless ($map) {
1866	# restore original map position	2514	# restore original map position
…		…
1880	# use -1 or undef as default coordinates, not 0, 0	2528	# use -1 or undef as default coordinates, not 0, 0
1881	($x, $y) = ($map->enter_x, $map->enter_y)	2529	($x, $y) = ($map->enter_x, $map->enter_y)
1882	if $x <=0 && $y <= 0;	2530	if $x <=0 && $y <= 0;
1883		2531
1884	$map->load;	2532	$map->load;
1885	$map->load_diag;	2533	$map->load_neighbours;
1886		2534
1887	return unless $self->contr->active;	2535	return unless $self->contr->active;
1888	$self->activate_recursive;
1889		2536
1890	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2537	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1891	$self->enter_map ($map, $x, $y);	2538	$self->enter_map ($map, $x, $y);
1892	}
1893		2539
1894	cf::player->attach (	2540	# only activate afterwards, to support waiting in hooks
1895	on_logout => sub {	2541	$self->activate_recursive;
1896	my ($pl) = @_;	2542	}
1897		2543
1898	# abort map switching before logout	2544	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1899	if ($pl->ob->{_link_pos}) {
1900	cf::sync_job {
1901	$pl->ob->leave_link
1902	};
1903	}
1904	},
1905	on_login => sub {
1906	my ($pl) = @_;
1907		2545
1908	# try to abort aborted map switching on player login :)	2546	Moves the player to the given map-path and coordinates by first freezing
1909	# should happen only on crashes	2547	her, loading and preparing them map, calling the provided $check callback
1910	if ($pl->ob->{_link_pos}) {	2548	that has to return the map if sucecssful, and then unfreezes the player on
1911	$pl->ob->enter_link;	2549	the new (success) or old (failed) map position. In either case, $done will
1912	(async {	2550	be called at the end of this process.
1913	$pl->ob->reply (undef,
1914	"There was an internal problem at your last logout, "
1915	. "the server will try to bring you to your intended destination in a second.",
1916	cf::NDI_RED);
1917	# we need this sleep as the login has a concurrent enter_exit running
1918	# and this sleep increases chances of the player not ending up in scorn
1919	Coro::Timer::sleep 1;
1920	$pl->ob->leave_link;
1921	})->prio (2);
1922	}
1923	},
1924	);
1925		2551
1926	=item $player_object->goto ($path, $x, $y)	2552	Note that $check will be called with a potentially non-loaded map, so if
		2553	it needs a loaded map it has to call C<< ->load >>.
1927		2554
1928	=cut	2555	=cut
		2556
		2557	our $GOTOGEN;
1929		2558
1930	sub cf::object::player::goto {	2559	sub cf::object::player::goto {
1931	my ($self, $path, $x, $y) = @_;	2560	my ($self, $path, $x, $y, $check, $done) = @_;
		2561
		2562	# do generation counting so two concurrent goto's will be executed in-order
		2563	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1932		2564
1933	$self->enter_link;	2565	$self->enter_link;
1934		2566
1935	(async {	2567	(async {
		2568	$Coro::current->{desc} = "player::goto $path $x $y";
		2569
		2570	# *tag paths override both path and x|y
		2571	if ($path =~ /^\*(.*)$/) {
		2572	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2573	my $ob = $obs[rand @obs];
		2574
		2575	# see if we actually can go there
		2576	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2577	$ob = $obs[rand @obs];
		2578	} else {
		2579	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2580	}
		2581	# else put us there anyways for now #d#
		2582
		2583	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2584	} else {
		2585	($path, $x, $y) = (undef, undef, undef);
		2586	}
		2587	}
		2588
1936	my $map = eval {	2589	my $map = eval {
1937	my $map = cf::map::find $path;	2590	my $map = defined $path ? cf::map::find $path : undef;
		2591
		2592	if ($map) {
1938	$map = $map->customise_for ($self) if $map;	2593	$map = $map->customise_for ($self);
		2594	$map = $check->($map) if $check && $map;
		2595	} else {
		2596	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2597	}
		2598
1939	$map	2599	$map
		2600	};
		2601
		2602	if ($@) {
		2603	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2604	LOG llevError | logBacktrace, Carp::longmess $@;
1940	} or	2605	}
1941	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1942		2606
		2607	if ($gen == $self->{_goto_generation}) {
		2608	delete $self->{_goto_generation};
1943	$self->leave_link ($map, $x, $y);	2609	$self->leave_link ($map, $x, $y);
		2610	}
		2611
		2612	$done->() if $done;
1944	})->prio (1);	2613	})->prio (1);
1945	}	2614	}
1946		2615
1947	=item $player_object->enter_exit ($exit_object)	2616	=item $player_object->enter_exit ($exit_object)
1948		2617
…		…
1968	}	2637	}
1969		2638
1970	sub prepare_random_map {	2639	sub prepare_random_map {
1971	my ($exit) = @_;	2640	my ($exit) = @_;
1972		2641
1973	my $guard = cf::lock_acquire "exit_prepare:$exit";
1974
1975	# all this does is basically replace the /! path by	2642	# all this does is basically replace the /! path by
1976	# a new random map path (?random/...) with a seed	2643	# a new random map path (?random/...) with a seed
1977	# that depends on the exit object	2644	# that depends on the exit object
1978		2645
1979	my $rmp = parse_random_map_params $exit->msg;	2646	my $rmp = parse_random_map_params $exit->msg;
…		…
1981	if ($exit->map) {	2648	if ($exit->map) {
1982	$rmp->{region} = $exit->region->name;	2649	$rmp->{region} = $exit->region->name;
1983	$rmp->{origin_map} = $exit->map->path;	2650	$rmp->{origin_map} = $exit->map->path;
1984	$rmp->{origin_x} = $exit->x;	2651	$rmp->{origin_x} = $exit->x;
1985	$rmp->{origin_y} = $exit->y;	2652	$rmp->{origin_y} = $exit->y;
		2653
		2654	$exit->map->touch;
1986	}	2655	}
1987		2656
1988	$rmp->{random_seed} ||= $exit->random_seed;	2657	$rmp->{random_seed} ||= $exit->random_seed;
1989		2658
1990	my $data = cf::to_json $rmp;	2659	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1991	my $md5 = Digest::MD5::md5_hex $data;	2660	my $md5 = Digest::MD5::md5_hex $data;
1992	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2661	my $meta = "$RANDOMDIR/$md5.meta";
1993		2662
1994	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2663	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1995	aio_write $fh, 0, (length $data), $data, 0;	2664	aio_write $fh, 0, (length $data), $data, 0;
1996	undef $fh;	2665	undef $fh;
1997	aio_rename "$meta~", $meta;	2666	aio_rename "$meta~", $meta;
1998		2667
		2668	my $slaying = "?random/$md5";
		2669
		2670	if ($exit->valid) {
1999	$exit->slaying ("?random/$md5");	2671	$exit->slaying ("?random/$md5");
2000	$exit->msg (undef);	2672	$exit->msg (undef);
		2673	}
2001	}	2674	}
2002	}	2675	}
2003		2676
2004	sub cf::object::player::enter_exit {	2677	sub cf::object::player::enter_exit {
2005	my ($self, $exit) = @_;	2678	my ($self, $exit) = @_;
2006		2679
2007	return unless $self->type == cf::PLAYER;	2680	return unless $self->type == cf::PLAYER;
2008		2681
2009	if ($exit->slaying eq "/!") {
2010	#TODO: this should de-fi-ni-te-ly not be a sync-job
2011	# the problem is that $exit might not survive long enough
2012	# so it needs to be done right now, right here
2013	cf::sync_job { prepare_random_map $exit };
2014	}
2015
2016	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2017	my $hp = $exit->stats->hp;
2018	my $sp = $exit->stats->sp;
2019
2020	$self->enter_link;	2682	$self->enter_link;
2021		2683
2022	(async {	2684	(async {
2023	$self->deactivate_recursive; # just to be sure	2685	$Coro::current->{desc} = "enter_exit";
		2686
2024	unless (eval {	2687	unless (eval {
		2688	$self->deactivate_recursive; # just to be sure
		2689
		2690	# random map handling
		2691	{
		2692	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2693
		2694	prepare_random_map $exit
		2695	if $exit->slaying eq "/!";
		2696	}
		2697
		2698	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2699	my $x = $exit->stats->hp;
		2700	my $y = $exit->stats->sp;
		2701
2025	$self->goto ($slaying, $hp, $sp);	2702	$self->goto ($map, $x, $y);
2026		2703
		2704	# if exit is damned, update players death & WoR home-position
		2705	$self->contr->savebed ($map, $x, $y)
		2706	if $exit->flag (cf::FLAG_DAMNED);
		2707
2027	1;	2708	1
2028	}) {	2709	}) {
2029	$self->message ("Something went wrong deep within the crossfire server. "	2710	$self->message ("Something went wrong deep within the deliantra server. "
2030	. "I'll try to bring you back to the map you were before. "	2711	. "I'll try to bring you back to the map you were before. "
2031	. "Please report this to the dungeon master!",	2712	. "Please report this to the dungeon master!",
2032	cf::NDI_UNIQUE | cf::NDI_RED);	2713	cf::NDI_UNIQUE | cf::NDI_RED);
2033		2714
2034	warn "ERROR in enter_exit: $@";	2715	warn "ERROR in enter_exit: $@";
…		…
2053		2734
2054	utf8::encode $text;	2735	utf8::encode $text;
2055	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2736	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2056	}	2737	}
2057		2738
		2739	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2740
		2741	Send a drawinfo or msg packet to the client, formatting the msg for the
		2742	client if neccessary. C<$type> should be a string identifying the type of
		2743	the message, with C<log> being the default. If C<$color> is negative, suppress
		2744	the message unless the client supports the msg packet.
		2745
		2746	=cut
		2747
		2748	# non-persistent channels (usually the info channel)
		2749	our %CHANNEL = (
		2750	"c/identify" => {
		2751	id => "infobox",
		2752	title => "Identify",
		2753	reply => undef,
		2754	tooltip => "Items recently identified",
		2755	},
		2756	"c/examine" => {
		2757	id => "infobox",
		2758	title => "Examine",
		2759	reply => undef,
		2760	tooltip => "Signs and other items you examined",
		2761	},
		2762	"c/book" => {
		2763	id => "infobox",
		2764	title => "Book",
		2765	reply => undef,
		2766	tooltip => "The contents of a note or book",
		2767	},
		2768	"c/lookat" => {
		2769	id => "infobox",
		2770	title => "Look",
		2771	reply => undef,
		2772	tooltip => "What you saw there",
		2773	},
		2774	"c/who" => {
		2775	id => "infobox",
		2776	title => "Players",
		2777	reply => undef,
		2778	tooltip => "Shows players who are currently online",
		2779	},
		2780	"c/body" => {
		2781	id => "infobox",
		2782	title => "Body Parts",
		2783	reply => undef,
		2784	tooltip => "Shows which body parts you posess and are available",
		2785	},
		2786	"c/statistics" => {
		2787	id => "infobox",
		2788	title => "Statistics",
		2789	reply => undef,
		2790	tooltip => "Shows your primary statistics",
		2791	},
		2792	"c/skills" => {
		2793	id => "infobox",
		2794	title => "Skills",
		2795	reply => undef,
		2796	tooltip => "Shows your experience per skill and item power",
		2797	},
		2798	"c/shopitems" => {
		2799	id => "infobox",
		2800	title => "Shop Items",
		2801	reply => undef,
		2802	tooltip => "Shows the items currently for sale in this shop",
		2803	},
		2804	"c/resistances" => {
		2805	id => "infobox",
		2806	title => "Resistances",
		2807	reply => undef,
		2808	tooltip => "Shows your resistances",
		2809	},
		2810	"c/pets" => {
		2811	id => "infobox",
		2812	title => "Pets",
		2813	reply => undef,
		2814	tooltip => "Shows information abotu your pets/a specific pet",
		2815	},
		2816	"c/perceiveself" => {
		2817	id => "infobox",
		2818	title => "Perceive Self",
		2819	reply => undef,
		2820	tooltip => "You gained detailed knowledge about yourself",
		2821	},
		2822	"c/uptime" => {
		2823	id => "infobox",
		2824	title => "Uptime",
		2825	reply => undef,
		2826	tooltip => "How long the server has been running since last restart",
		2827	},
		2828	"c/mapinfo" => {
		2829	id => "infobox",
		2830	title => "Map Info",
		2831	reply => undef,
		2832	tooltip => "Information related to the maps",
		2833	},
		2834	"c/party" => {
		2835	id => "party",
		2836	title => "Party",
		2837	reply => "gsay ",
		2838	tooltip => "Messages and chat related to your party",
		2839	},
		2840	"c/death" => {
		2841	id => "death",
		2842	title => "Death",
		2843	reply => undef,
		2844	tooltip => "Reason for and more info about your most recent death",
		2845	},
		2846	"c/say" => $SAY_CHANNEL,
		2847	"c/chat" => $CHAT_CHANNEL,
		2848	);
		2849
		2850	sub cf::client::send_msg {
		2851	my ($self, $channel, $msg, $color, @extra) = @_;
		2852
		2853	$msg = $self->pl->expand_cfpod ($msg)
		2854	unless $color & cf::NDI_VERBATIM;
		2855
		2856	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2857
		2858	# check predefined channels, for the benefit of C
		2859	if ($CHANNEL{$channel}) {
		2860	$channel = $CHANNEL{$channel};
		2861
		2862	$self->ext_msg (channel_info => $channel);
		2863	$channel = $channel->{id};
		2864
		2865	} elsif (ref $channel) {
		2866	# send meta info to client, if not yet sent
		2867	unless (exists $self->{channel}{$channel->{id}}) {
		2868	$self->{channel}{$channel->{id}} = $channel;
		2869	$self->ext_msg (channel_info => $channel);
		2870	}
		2871
		2872	$channel = $channel->{id};
		2873	}
		2874
		2875	return unless @extra || length $msg;
		2876
		2877	# default colour, mask it out
		2878	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2879	if $color & cf::NDI_DEF;
		2880
		2881	my $pkt = "msg "
		2882	. $self->{json_coder}->encode (
		2883	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2884	);
		2885
		2886	# try lzf for large packets
		2887	$pkt = "lzf " . Compress::LZF::compress $pkt
		2888	if 1024 <= length $pkt and $self->{can_lzf};
		2889
		2890	# split very large packets
		2891	if (8192 < length $pkt and $self->{can_lzf}) {
		2892	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2893	$pkt = "frag";
		2894	}
		2895
		2896	$self->send_packet ($pkt);
		2897	}
		2898
2058	=item $client->ext_event ($type, %msg)	2899	=item $client->ext_msg ($type, @msg)
2059		2900
2060	Sends an exti event to the client.	2901	Sends an ext event to the client.
2061		2902
2062	=cut	2903	=cut
2063		2904
2064	sub cf::client::ext_event($$%) {	2905	sub cf::client::ext_msg($$@) {
2065	my ($self, $type, %msg) = @_;	2906	my ($self, $type, @msg) = @_;
2066		2907
		2908	if ($self->extcmd == 2) {
		2909	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2910	} elsif ($self->extcmd == 1) { # TODO: remove
2067	$msg{msgtype} = "event_$type";	2911	push @msg, msgtype => "event_$type";
2068	$self->send_packet ("ext " . cf::to_json \%msg);	2912	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2913	}
		2914	}
		2915
		2916	=item $client->ext_reply ($msgid, @msg)
		2917
		2918	Sends an ext reply to the client.
		2919
		2920	=cut
		2921
		2922	sub cf::client::ext_reply($$@) {
		2923	my ($self, $id, @msg) = @_;
		2924
		2925	if ($self->extcmd == 2) {
		2926	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2927	} elsif ($self->extcmd == 1) {
		2928	#TODO: version 1, remove
		2929	unshift @msg, msgtype => "reply", msgid => $id;
		2930	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2931	}
2069	}	2932	}
2070		2933
2071	=item $success = $client->query ($flags, "text", \&cb)	2934	=item $success = $client->query ($flags, "text", \&cb)
2072		2935
2073	Queues a query to the client, calling the given callback with	2936	Queues a query to the client, calling the given callback with
2074	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2937	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2075	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2938	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2076		2939
2077	Queries can fail, so check the return code. Or don't, as queries will become	2940	Queries can fail, so check the return code. Or don't, as queries will
2078	reliable at some point in the future.	2941	become reliable at some point in the future.
2079		2942
2080	=cut	2943	=cut
2081		2944
2082	sub cf::client::query {	2945	sub cf::client::query {
2083	my ($self, $flags, $text, $cb) = @_;	2946	my ($self, $flags, $text, $cb) = @_;
…		…
2091	utf8::encode $text;	2954	utf8::encode $text;
2092	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2955	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2093		2956
2094	$self->send_packet ($self->{query_queue}[0][0])	2957	$self->send_packet ($self->{query_queue}[0][0])
2095	if @{ $self->{query_queue} } == 1;	2958	if @{ $self->{query_queue} } == 1;
		2959
		2960	1
2096	}	2961	}
2097		2962
2098	cf::client->attach (	2963	cf::client->attach (
		2964	on_connect => sub {
		2965	my ($ns) = @_;
		2966
		2967	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2968	},
2099	on_reply => sub {	2969	on_reply => sub {
2100	my ($ns, $msg) = @_;	2970	my ($ns, $msg) = @_;
2101		2971
2102	# this weird shuffling is so that direct followup queries	2972	# this weird shuffling is so that direct followup queries
2103	# get handled first	2973	# get handled first
…		…
2115	} else {	2985	} else {
2116	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2986	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2117	}	2987	}
2118	}	2988	}
2119	},	2989	},
		2990	on_exticmd => sub {
		2991	my ($ns, $buf) = @_;
		2992
		2993	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2994
		2995	if (ref $msg) {
		2996	my ($type, $reply, @payload) =
		2997	"ARRAY" eq ref $msg
		2998	? @$msg
		2999	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3000
		3001	my @reply;
		3002
		3003	if (my $cb = $EXTICMD{$type}) {
		3004	@reply = $cb->($ns, @payload);
		3005	}
		3006
		3007	$ns->ext_reply ($reply, @reply)
		3008	if $reply;
		3009
		3010	} else {
		3011	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3012	}
		3013
		3014	cf::override;
		3015	},
2120	);	3016	);
2121		3017
2122	=item $client->async (\&cb)	3018	=item $client->async (\&cb)
2123		3019
2124	Create a new coroutine, running the specified callback. The coroutine will	3020	Create a new coroutine, running the specified callback. The coroutine will
…		…
2165	our $safe = new Safe "safe";	3061	our $safe = new Safe "safe";
2166	our $safe_hole = new Safe::Hole;	3062	our $safe_hole = new Safe::Hole;
2167		3063
2168	$SIG{FPE} = 'IGNORE';	3064	$SIG{FPE} = 'IGNORE';
2169		3065
2170	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3066	$safe->permit_only (Opcode::opset qw(
		3067	:base_core :base_mem :base_orig :base_math
		3068	grepstart grepwhile mapstart mapwhile
		3069	sort time
		3070	));
2171		3071
2172	# here we export the classes and methods available to script code	3072	# here we export the classes and methods available to script code
2173		3073
2174	=pod	3074	=pod
2175		3075
2176	The following functions and methods are available within a safe environment:	3076	The following functions and methods are available within a safe environment:
2177		3077
2178	cf::object contr pay_amount pay_player map	3078	cf::object
		3079	contr pay_amount pay_player map x y force_find force_add destroy
		3080	insert remove name archname title slaying race decrease split
		3081	value
		3082
2179	cf::object::player player	3083	cf::object::player
2180	cf::player peaceful	3084	player
2181	cf::map trigger	3085
		3086	cf::player
		3087	peaceful
		3088
		3089	cf::map
		3090	trigger
2182		3091
2183	=cut	3092	=cut
2184		3093
2185	for (	3094	for (
2186	["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 value msg lore send_msg)],
2187	["cf::object::player" => qw(player)],	3098	["cf::object::player" => qw(player)],
2188	["cf::player" => qw(peaceful)],	3099	["cf::player" => qw(peaceful send_msg)],
2189	["cf::map" => qw(trigger)],	3100	["cf::map" => qw(trigger)],
2190	) {	3101	) {
2191	no strict 'refs';	3102	no strict 'refs';
2192	my ($pkg, @funs) = @$_;	3103	my ($pkg, @funs) = @$_;
2193	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3104	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2210	my ($code, %vars) = @_;	3121	my ($code, %vars) = @_;
2211		3122
2212	my $qcode = $code;	3123	my $qcode = $code;
2213	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3124	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2214	$qcode =~ s/\n/\\n/g;	3125	$qcode =~ s/\n/\\n/g;
		3126
		3127	%vars = (_dummy => 0) unless %vars;
2215		3128
2216	local $_;	3129	local $_;
2217	local @safe::cf::_safe_eval_args = values %vars;	3130	local @safe::cf::_safe_eval_args = values %vars;
2218		3131
2219	my $eval =	3132	my $eval =
…		…
2262	=back	3175	=back
2263		3176
2264	=cut	3177	=cut
2265		3178
2266	#############################################################################	3179	#############################################################################
2267
2268	=head2 EXTENSION DATABASE SUPPORT
2269
2270	Crossfire maintains a very simple database for extension use. It can
2271	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2272	convert to/from binary).
2273
2274	The parameter C<$family> should best start with the name of the extension
2275	using it, it should be unique.
2276
2277	=over 4
2278
2279	=item $value = cf::db_get $family => $key
2280
2281	Returns a single value from the database.
2282
2283	=item cf::db_put $family => $key => $value
2284
2285	Stores the given C<$value> in the family.
2286
2287	=cut
2288
2289	our $DB;
2290
2291	sub db_init {
2292	unless ($DB) {
2293	$DB = BDB::db_create $DB_ENV;
2294
2295	cf::sync_job {
2296	eval {
2297	$DB->set_flags (BDB::CHKSUM);
2298
2299	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2300	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2301	cf::cleanup "db_open(db): $!" if $!;
2302	};
2303	cf::cleanup "db_open(db): $@" if $@;
2304	};
2305	}
2306	}
2307
2308	sub db_get($$) {
2309	my $key = "$_[0]/$_[1]";
2310
2311	cf::sync_job {
2312	BDB::db_get $DB, undef, $key, my $data;
2313
2314	$! ? ()
2315	: $data
2316	}
2317	}
2318
2319	sub db_put($$$) {
2320	BDB::dbreq_pri 4;
2321	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2322	}
2323
2324	=item cf::cache $id => [$paths...], $processversion => $process
2325
2326	Generic caching function that returns the value of the resource $id,
2327	caching and regenerating as required.
2328
2329	This function can block.
2330
2331	=cut
2332
2333	sub cache {
2334	my ($id, $src, $processversion, $process) = @_;
2335
2336	my $meta =
2337	join "\x00",
2338	$processversion,
2339	map {
2340	aio_stat $_
2341	and Carp::croak "$_: $!";
2342
2343	($_, (stat _)[7,9])
2344	} @$src;
2345
2346	my $dbmeta = db_get cache => "$id/meta";
2347	if ($dbmeta ne $meta) {
2348	# changed, we may need to process
2349
2350	my @data;
2351	my $md5;
2352
2353	for (0 .. $#$src) {
2354	0 <= aio_load $src->[$_], $data[$_]
2355	or Carp::croak "$src->[$_]: $!";
2356	}
2357
2358	# if processing is expensive, check
2359	# checksum first
2360	if (1) {
2361	$md5 =
2362	join "\x00",
2363	$processversion,
2364	map {
2365	Coro::cede;
2366	($src->[$_], Digest::MD5::md5_hex $data[$_])
2367	} 0.. $#$src;
2368
2369
2370	my $dbmd5 = db_get cache => "$id/md5";
2371	if ($dbmd5 eq $md5) {
2372	db_put cache => "$id/meta", $meta;
2373
2374	return db_get cache => "$id/data";
2375	}
2376	}
2377
2378	my $data = $process->(\@data);
2379
2380	db_put cache => "$id/data", $data;
2381	db_put cache => "$id/md5" , $md5;
2382	db_put cache => "$id/meta", $meta;
2383
2384	return $data;
2385	}
2386
2387	db_get cache => "$id/data"
2388	}
2389
2390	=item fork_call { }, $args
2391
2392	Executes the given code block with the given arguments in a seperate
2393	process, returning the results. Everything must be serialisable with
2394	Coro::Storable. May, of course, block. Note that the executed sub may
2395	never block itself or use any form of Event handling.
2396
2397	=cut
2398
2399	sub fork_call(&@) {
2400	my ($cb, @args) = @_;
2401
2402	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2403	# or die "socketpair: $!";
2404	pipe my $fh1, my $fh2
2405	or die "pipe: $!";
2406
2407	if (my $pid = fork) {
2408	close $fh2;
2409
2410	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2411	$res = Coro::Storable::thaw $res;
2412
2413	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2414
2415	die $$res unless "ARRAY" eq ref $res;
2416
2417	return wantarray ? @$res : $res->[-1];
2418	} else {
2419	eval {
2420	local $SIG{__DIE__};
2421	local $SIG{__WARN__};
2422	close $fh1;
2423
2424	my @res = eval { $cb->(@args) };
2425	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2426	};
2427
2428	_exit 0;
2429	}
2430	}
2431
2432
2433
2434	#############################################################################
2435	# the server's init and main functions	3180	# the server's init and main functions
2436		3181
2437	sub load_facedata($) {	3182	sub load_facedata($) {
2438	my ($path) = @_;	3183	my ($path) = @_;
		3184
		3185	# HACK to clear player env face cache, we need some signal framework
		3186	# for this (global event?)
		3187	%ext::player_env::MUSIC_FACE_CACHE = ();
		3188
		3189	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2439		3190
2440	warn "loading facedata from $path\n";	3191	warn "loading facedata from $path\n";
2441		3192
2442	my $facedata;	3193	my $facedata;
2443	0 < aio_load $path, $facedata	3194	0 < aio_load $path, $facedata
…		…
2446	$facedata = Coro::Storable::thaw $facedata;	3197	$facedata = Coro::Storable::thaw $facedata;
2447		3198
2448	$facedata->{version} == 2	3199	$facedata->{version} == 2
2449	or cf::cleanup "$path: version mismatch, cannot proceed.";	3200	or cf::cleanup "$path: version mismatch, cannot proceed.";
2450		3201
		3202	# patch in the exptable
		3203	$facedata->{resource}{"res/exp_table"} = {
		3204	type => FT_RSRC,
		3205	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3206	};
		3207	cf::cede_to_tick;
		3208
2451	{	3209	{
2452	my $faces = $facedata->{faceinfo};	3210	my $faces = $facedata->{faceinfo};
2453		3211
2454	while (my ($face, $info) = each %$faces) {	3212	while (my ($face, $info) = each %$faces) {
2455	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3213	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3214
2456	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3215	cf::face::set_visibility $idx, $info->{visibility};
		3216	cf::face::set_magicmap $idx, $info->{magicmap};
2457	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3217	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2458	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3218	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2459	Coro::cede;	3219
		3220	cf::cede_to_tick;
2460	}	3221	}
2461		3222
2462	while (my ($face, $info) = each %$faces) {	3223	while (my ($face, $info) = each %$faces) {
2463	next unless $info->{smooth};	3224	next unless $info->{smooth};
		3225
2464	my $idx = cf::face::find $face	3226	my $idx = cf::face::find $face
2465	or next;	3227	or next;
		3228
2466	if (my $smooth = cf::face::find $info->{smooth}) {	3229	if (my $smooth = cf::face::find $info->{smooth}) {
		3230	cf::face::set_smooth $idx, $smooth;
2467	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3231	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2468	} else {	3232	} else {
2469	warn "smooth face '$info->{smooth}' not found for face '$face'";	3233	warn "smooth face '$info->{smooth}' not found for face '$face'";
2470	}	3234	}
2471	Coro::cede;	3235
		3236	cf::cede_to_tick;
2472	}	3237	}
2473	}	3238	}
2474		3239
2475	{	3240	{
2476	my $anims = $facedata->{animinfo};	3241	my $anims = $facedata->{animinfo};
2477		3242
2478	while (my ($anim, $info) = each %$anims) {	3243	while (my ($anim, $info) = each %$anims) {
2479	cf::anim::set $anim, $info->{frames}, $info->{facings};	3244	cf::anim::set $anim, $info->{frames}, $info->{facings};
2480	Coro::cede;	3245	cf::cede_to_tick;
2481	}	3246	}
2482		3247
2483	cf::anim::invalidate_all; # d'oh	3248	cf::anim::invalidate_all; # d'oh
2484	}	3249	}
2485		3250
		3251	{
		3252	# TODO: for gcfclient pleasure, we should give resources
		3253	# that gcfclient doesn't grok a >10000 face index.
		3254	my $res = $facedata->{resource};
		3255
		3256	while (my ($name, $info) = each %$res) {
		3257	if (defined $info->{type}) {
		3258	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3259	my $data;
		3260
		3261	if ($info->{type} & 1) {
		3262	# prepend meta info
		3263
		3264	my $meta = $enc->encode ({
		3265	name => $name,
		3266	%{ $info->{meta} || {} },
		3267	});
		3268
		3269	$data = pack "(w/a*)*", $meta, $info->{data};
		3270	} else {
		3271	$data = $info->{data};
		3272	}
		3273
		3274	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3275	cf::face::set_type $idx, $info->{type};
		3276	} else {
		3277	$RESOURCE{$name} = $info;
		3278	}
		3279
		3280	cf::cede_to_tick;
		3281	}
		3282	}
		3283
		3284	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3285
2486	1	3286	1
2487	}	3287	}
2488		3288
		3289	cf::global->attach (on_resource_update => sub {
		3290	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3291	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3292
		3293	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3294	my $sound = $soundconf->{compat}[$_]
		3295	or next;
		3296
		3297	my $face = cf::face::find "sound/$sound->[1]";
		3298	cf::sound::set $sound->[0] => $face;
		3299	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3300	}
		3301
		3302	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3303	my $face = cf::face::find "sound/$v";
		3304	cf::sound::set $k => $face;
		3305	}
		3306	}
		3307	});
		3308
		3309	register_exticmd fx_want => sub {
		3310	my ($ns, $want) = @_;
		3311
		3312	while (my ($k, $v) = each %$want) {
		3313	$ns->fx_want ($k, $v);
		3314	}
		3315	};
		3316
		3317	sub load_resource_file($) {
		3318	my $guard = lock_acquire "load_resource_file";
		3319
		3320	my $status = load_resource_file_ $_[0];
		3321	get_slot 0.1, 100;
		3322	cf::arch::commit_load;
		3323
		3324	$status
		3325	}
		3326
		3327	sub reload_regions {
		3328	# HACK to clear player env face cache, we need some signal framework
		3329	# for this (global event?)
		3330	%ext::player_env::MUSIC_FACE_CACHE = ();
		3331
		3332	load_resource_file "$MAPDIR/regions"
		3333	or die "unable to load regions file\n";
		3334
		3335	for (cf::region::list) {
		3336	$_->{match} = qr/$_->{match}/
		3337	if exists $_->{match};
		3338	}
		3339	}
		3340
2489	sub reload_facedata {	3341	sub reload_facedata {
2490	load_facedata sprintf "%s/facedata", cf::datadir	3342	load_facedata "$DATADIR/facedata"
2491	or die "unable to load facedata\n";	3343	or die "unable to load facedata\n";
2492	}	3344	}
2493		3345
2494	sub reload_regions {
2495	load_resource_file sprintf "%s/%s/regions", cf::datadir, cf::mapdir
2496	or die "unable to load regions file\n";
2497	}
2498
2499	sub reload_archetypes {	3346	sub reload_archetypes {
2500	load_resource_file sprintf "%s/archetypes", cf::datadir	3347	load_resource_file "$DATADIR/archetypes"
2501	or die "unable to load archetypes\n";	3348	or die "unable to load archetypes\n";
2502	}	3349	}
2503		3350
2504	sub reload_treasures {	3351	sub reload_treasures {
2505	load_resource_file sprintf "%s/treasures", cf::datadir	3352	load_resource_file "$DATADIR/treasures"
2506	or die "unable to load treasurelists\n";	3353	or die "unable to load treasurelists\n";
2507	}	3354	}
2508		3355
2509	sub reload_resources {	3356	sub reload_resources {
2510	warn "reloading resource files...\n";	3357	warn "reloading resource files...\n";
2511		3358
2512	reload_regions;
2513	reload_facedata;	3359	reload_facedata;
2514	reload_archetypes;	3360	reload_archetypes;
		3361	reload_regions;
2515	reload_treasures;	3362	reload_treasures;
2516		3363
2517	warn "finished reloading resource files\n";	3364	warn "finished reloading resource files\n";
2518	}	3365	}
2519		3366
2520	sub init {	3367	sub reload_config {
2521	reload_resources;
2522	}
2523
2524	sub cfg_load {
2525	open my $fh, "<:utf8", cf::confdir . "/config"	3368	open my $fh, "<:utf8", "$CONFDIR/config"
2526	or return;	3369	or return;
2527		3370
2528	local $/;	3371	local $/;
2529	*CFG = YAML::Syck::Load <$fh>;	3372	*CFG = YAML::Load <$fh>;
2530		3373
2531	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3374	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2532		3375
2533	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3376	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2534	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3377	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2540	};	3383	};
2541	warn $@ if $@;	3384	warn $@ if $@;
2542	}	3385	}
2543	}	3386	}
2544		3387
		3388	sub pidfile() {
		3389	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3390	or die "$PIDFILE: $!";
		3391	flock $fh, &Fcntl::LOCK_EX
		3392	or die "$PIDFILE: flock: $!";
		3393	$fh
		3394	}
		3395
		3396	# make sure only one server instance is running at any one time
		3397	sub atomic {
		3398	my $fh = pidfile;
		3399
		3400	my $pid = <$fh>;
		3401	kill 9, $pid if $pid > 0;
		3402
		3403	seek $fh, 0, 0;
		3404	print $fh $$;
		3405	}
		3406
		3407	sub main_loop {
		3408	warn "EV::loop starting\n";
		3409	if (1) {
		3410	EV::loop;
		3411	}
		3412	warn "EV::loop returned\n";
		3413	goto &main_loop unless $REALLY_UNLOOP;
		3414	}
		3415
2545	sub main {	3416	sub main {
		3417	cf::init_globals; # initialise logging
		3418
		3419	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3420	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3421	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3422	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3423
		3424	cf::init_experience;
		3425	cf::init_anim;
		3426	cf::init_attackmess;
		3427	cf::init_dynamic;
		3428
		3429	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3430
2546	# we must not ever block the main coroutine	3431	# we must not ever block the main coroutine
2547	local $Coro::idle = sub {	3432	local $Coro::idle = sub {
2548	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3433	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2549	(async {	3434	(async {
2550	Event::one_event;	3435	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3436	EV::loop EV::LOOP_ONESHOT;
2551	})->prio (Coro::PRIO_MAX);	3437	})->prio (Coro::PRIO_MAX);
2552	};	3438	};
2553		3439
2554	cfg_load;	3440	evthread_start IO::AIO::poll_fileno;
		3441
		3442	cf::sync_job {
		3443	reload_resources;
		3444	reload_config;
2555	db_init;	3445	db_init;
		3446
		3447	cf::load_settings;
		3448	cf::load_materials;
		3449	cf::init_uuid;
		3450	cf::init_signals;
		3451	cf::init_commands;
		3452	cf::init_skills;
		3453
		3454	cf::init_beforeplay;
		3455
		3456	atomic;
		3457
2556	load_extensions;	3458	load_extensions;
2557		3459
2558	$TICK_WATCHER->start;	3460	utime time, time, $RUNTIMEFILE;
2559	Event::loop;	3461
		3462	# no (long-running) fork's whatsoever before this point(!)
		3463	use POSIX ();
		3464	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3465
		3466	(pop @POST_INIT)->(0) while @POST_INIT;
		3467	};
		3468
		3469	main_loop;
2560	}	3470	}
2561		3471
2562	#############################################################################	3472	#############################################################################
2563	# initialisation and cleanup	3473	# initialisation and cleanup
2564		3474
2565	# install some emergency cleanup handlers	3475	# install some emergency cleanup handlers
2566	BEGIN {	3476	BEGIN {
		3477	our %SIGWATCHER = ();
2567	for my $signal (qw(INT HUP TERM)) {	3478	for my $signal (qw(INT HUP TERM)) {
2568	Event->signal (	3479	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2569	reentrant => 0,
2570	data => WF_AUTOCANCEL,
2571	signal => $signal,
2572	prio => 0,
2573	cb => sub {
2574	cf::cleanup "SIG$signal";	3480	cf::cleanup "SIG$signal";
2575	},
2576	);	3481	};
		3482	}
		3483	}
		3484
		3485	sub write_runtime_sync {
		3486	# first touch the runtime file to show we are still running:
		3487	# the fsync below can take a very very long time.
		3488
		3489	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3490
		3491	my $guard = cf::lock_acquire "write_runtime";
		3492
		3493	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3494	or return;
		3495
		3496	my $value = $cf::RUNTIME + 90 + 10;
		3497	# 10 is the runtime save interval, for a monotonic clock
		3498	# 60 allows for the watchdog to kill the server.
		3499
		3500	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3501	and return;
		3502
		3503	# always fsync - this file is important
		3504	aio_fsync $fh
		3505	and return;
		3506
		3507	# touch it again to show we are up-to-date
		3508	aio_utime $fh, undef, undef;
		3509
		3510	close $fh
		3511	or return;
		3512
		3513	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3514	and return;
		3515
		3516	warn "runtime file written.\n";
		3517
2577	}	3518	1
		3519	}
		3520
		3521	our $uuid_lock;
		3522	our $uuid_skip;
		3523
		3524	sub write_uuid_sync($) {
		3525	$uuid_skip ||= $_[0];
		3526
		3527	return if $uuid_lock;
		3528	local $uuid_lock = 1;
		3529
		3530	my $uuid = "$LOCALDIR/uuid";
		3531
		3532	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3533	or return;
		3534
		3535	my $value = uuid_seq uuid_cur;
		3536
		3537	unless ($value) {
		3538	warn "cowardly refusing to write zero uuid value!\n";
		3539	return;
		3540	}
		3541
		3542	my $value = uuid_str $value + $uuid_skip;
		3543	$uuid_skip = 0;
		3544
		3545	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3546	and return;
		3547
		3548	# always fsync - this file is important
		3549	aio_fsync $fh
		3550	and return;
		3551
		3552	close $fh
		3553	or return;
		3554
		3555	aio_rename "$uuid~", $uuid
		3556	and return;
		3557
		3558	warn "uuid file written ($value).\n";
		3559
		3560	1
		3561
		3562	}
		3563
		3564	sub write_uuid($$) {
		3565	my ($skip, $sync) = @_;
		3566
		3567	$sync ? write_uuid_sync $skip
		3568	: async { write_uuid_sync $skip };
2578	}	3569	}
2579		3570
2580	sub emergency_save() {	3571	sub emergency_save() {
2581	my $freeze_guard = cf::freeze_mainloop;	3572	my $freeze_guard = cf::freeze_mainloop;
2582		3573
2583	warn "enter emergency perl save\n";	3574	warn "emergency_perl_save: enter\n";
2584		3575
2585	cf::sync_job {	3576	cf::sync_job {
		3577	# this is a trade-off: we want to be very quick here, so
		3578	# save all maps without fsync, and later call a global sync
		3579	# (which in turn might be very very slow)
		3580	local $USE_FSYNC = 0;
		3581
2586	# use a peculiar iteration method to avoid tripping on perl	3582	# use a peculiar iteration method to avoid tripping on perl
2587	# refcount bugs in for. also avoids problems with players	3583	# refcount bugs in for. also avoids problems with players
2588	# and maps saved/destroyed asynchronously.	3584	# and maps saved/destroyed asynchronously.
2589	warn "begin emergency player save\n";	3585	warn "emergency_perl_save: begin player save\n";
2590	for my $login (keys %cf::PLAYER) {	3586	for my $login (keys %cf::PLAYER) {
2591	my $pl = $cf::PLAYER{$login} or next;	3587	my $pl = $cf::PLAYER{$login} or next;
2592	$pl->valid or next;	3588	$pl->valid or next;
		3589	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2593	$pl->save;	3590	$pl->save;
2594	}	3591	}
2595	warn "end emergency player save\n";	3592	warn "emergency_perl_save: end player save\n";
2596		3593
2597	warn "begin emergency map save\n";	3594	warn "emergency_perl_save: begin map save\n";
2598	for my $path (keys %cf::MAP) {	3595	for my $path (keys %cf::MAP) {
2599	my $map = $cf::MAP{$path} or next;	3596	my $map = $cf::MAP{$path} or next;
2600	$map->valid or next;	3597	$map->valid or next;
2601	$map->save;	3598	$map->save;
2602	}	3599	}
2603	warn "end emergency map save\n";	3600	warn "emergency_perl_save: end map save\n";
2604		3601
2605	warn "begin emergency database checkpoint\n";	3602	warn "emergency_perl_save: begin database checkpoint\n";
2606	BDB::db_env_txn_checkpoint $DB_ENV;	3603	BDB::db_env_txn_checkpoint $DB_ENV;
2607	warn "end emergency database checkpoint\n";	3604	warn "emergency_perl_save: end database checkpoint\n";
		3605
		3606	warn "emergency_perl_save: begin write uuid\n";
		3607	write_uuid_sync 1;
		3608	warn "emergency_perl_save: end write uuid\n";
2608	};	3609	};
2609		3610
		3611	warn "emergency_perl_save: starting sync()\n";
		3612	IO::AIO::aio_sync sub {
		3613	warn "emergency_perl_save: finished sync()\n";
		3614	};
		3615
2610	warn "leave emergency perl save\n";	3616	warn "emergency_perl_save: leave\n";
2611	}	3617	}
2612		3618
2613	sub post_cleanup {	3619	sub post_cleanup {
2614	my ($make_core) = @_;	3620	my ($make_core) = @_;
2615		3621
2616	warn Carp::longmess "post_cleanup backtrace"	3622	warn Carp::longmess "post_cleanup backtrace"
2617	if $make_core;	3623	if $make_core;
		3624
		3625	my $fh = pidfile;
		3626	unlink $PIDFILE if <$fh> == $$;
		3627	}
		3628
		3629	# a safer delete_package, copied from Symbol
		3630	sub clear_package($) {
		3631	my $pkg = shift;
		3632
		3633	# expand to full symbol table name if needed
		3634	unless ($pkg =~ /^main::.*::$/) {
		3635	$pkg = "main$pkg" if $pkg =~ /^::/;
		3636	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3637	$pkg .= '::' unless $pkg =~ /::$/;
		3638	}
		3639
		3640	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3641	my $stem_symtab = *{$stem}{HASH};
		3642
		3643	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3644	or return;
		3645
		3646	# clear all symbols
		3647	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3648	for my $name (keys %$leaf_symtab) {
		3649	_gv_clear *{"$pkg$name"};
		3650	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3651	}
		3652	warn "cleared package $pkg\n";#d#
2618	}	3653	}
2619		3654
2620	sub do_reload_perl() {	3655	sub do_reload_perl() {
2621	# can/must only be called in main	3656	# can/must only be called in main
2622	if ($Coro::current != $Coro::main) {	3657	if ($Coro::current != $Coro::main) {
2623	warn "can only reload from main coroutine";	3658	warn "can only reload from main coroutine";
2624	return;	3659	return;
2625	}	3660	}
2626		3661
		3662	return if $RELOAD++;
		3663
		3664	my $t1 = EV::time;
		3665
		3666	while ($RELOAD) {
2627	warn "reloading...";	3667	warn "reloading...";
2628		3668
2629	warn "entering sync_job";	3669	warn "entering sync_job";
2630		3670
2631	cf::sync_job {	3671	cf::sync_job {
2632	cf::write_runtime; # external watchdog should not bark	3672	cf::write_runtime_sync; # external watchdog should not bark
2633	cf::emergency_save;	3673	cf::emergency_save;
2634	cf::write_runtime; # external watchdog should not bark	3674	cf::write_runtime_sync; # external watchdog should not bark
2635		3675
2636	warn "syncing database to disk";	3676	warn "syncing database to disk";
2637	BDB::db_env_txn_checkpoint $DB_ENV;	3677	BDB::db_env_txn_checkpoint $DB_ENV;
2638		3678
2639	# if anything goes wrong in here, we should simply crash as we already saved	3679	# if anything goes wrong in here, we should simply crash as we already saved
2640		3680
2641	warn "cancelling all WF_AUTOCANCEL watchers";
2642	for (Event::all_watchers) {
2643	$_->cancel if $_->data & WF_AUTOCANCEL;
2644	}
2645
2646	warn "flushing outstanding aio requests";	3681	warn "flushing outstanding aio requests";
2647	for (;;) {
2648	BDB::flush;
2649	IO::AIO::flush;
2650	Coro::cede;
2651	last unless IO::AIO::nreqs || BDB::nreqs;	3682	while (IO::AIO::nreqs || BDB::nreqs) {
2652	warn "iterate...";	3683	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2653	}
2654
2655	++$RELOAD;
2656
2657	warn "cancelling all extension coros";
2658	$_->cancel for values %EXT_CORO;
2659	%EXT_CORO = ();
2660
2661	warn "removing commands";
2662	%COMMAND = ();
2663
2664	warn "removing ext commands";
2665	%EXTCMD = ();
2666
2667	warn "unloading/nuking all extensions";
2668	for my $pkg (@EXTS) {
2669	warn "... unloading $pkg";
2670
2671	if (my $cb = $pkg->can ("unload")) {
2672	eval {
2673	$cb->($pkg);
2674	1
2675	} or warn "$pkg unloaded, but with errors: $@";
2676	}	3684	}
2677		3685
2678	warn "... nuking $pkg";	3686	warn "cancelling all extension coros";
2679	Symbol::delete_package $pkg;	3687	$_->cancel for values %EXT_CORO;
2680	}	3688	%EXT_CORO = ();
2681		3689
2682	warn "unloading all perl modules loaded from $LIBDIR";	3690	warn "removing commands";
2683	while (my ($k, $v) = each %INC) {	3691	%COMMAND = ();
2684	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2685		3692
		3693	warn "removing ext/exti commands";
		3694	%EXTCMD = ();
		3695	%EXTICMD = ();
		3696
		3697	warn "unloading/nuking all extensions";
		3698	for my $pkg (@EXTS) {
2686	warn "... unloading $k";	3699	warn "... unloading $pkg";
2687	delete $INC{$k};
2688		3700
2689	$k =~ s/\.pm$//;
2690	$k =~ s/\//::/g;
2691
2692	if (my $cb = $k->can ("unload_module")) {	3701	if (my $cb = $pkg->can ("unload")) {
		3702	eval {
2693	$cb->();	3703	$cb->($pkg);
		3704	1
		3705	} or warn "$pkg unloaded, but with errors: $@";
		3706	}
		3707
		3708	warn "... clearing $pkg";
		3709	clear_package $pkg;
2694	}	3710	}
2695		3711
2696	Symbol::delete_package $k;	3712	warn "unloading all perl modules loaded from $LIBDIR";
		3713	while (my ($k, $v) = each %INC) {
		3714	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3715
		3716	warn "... unloading $k";
		3717	delete $INC{$k};
		3718
		3719	$k =~ s/\.pm$//;
		3720	$k =~ s/\//::/g;
		3721
		3722	if (my $cb = $k->can ("unload_module")) {
		3723	$cb->();
		3724	}
		3725
		3726	clear_package $k;
2697	}	3727	}
2698		3728
2699	warn "getting rid of safe::, as good as possible";	3729	warn "getting rid of safe::, as good as possible";
2700	Symbol::delete_package "safe::$_"	3730	clear_package "safe::$_"
2701	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3731	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2702		3732
2703	warn "unloading cf.pm \"a bit\"";	3733	warn "unloading cf.pm \"a bit\"";
2704	delete $INC{"cf.pm"};	3734	delete $INC{"cf.pm"};
		3735	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2705		3736
2706	# don't, removes xs symbols, too,	3737	# don't, removes xs symbols, too,
2707	# and global variables created in xs	3738	# and global variables created in xs
2708	#Symbol::delete_package __PACKAGE__;	3739	#clear_package __PACKAGE__;
2709		3740
2710	warn "unload completed, starting to reload now";	3741	warn "unload completed, starting to reload now";
2711		3742
2712	warn "reloading cf.pm";	3743	warn "reloading cf.pm";
2713	require cf;	3744	require cf;
2714	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3745	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2715		3746
2716	warn "loading config and database again";	3747	warn "loading config and database again";
2717	cf::cfg_load;	3748	cf::reload_config;
2718		3749
2719	warn "loading extensions";	3750	warn "loading extensions";
2720	cf::load_extensions;	3751	cf::load_extensions;
2721		3752
		3753	if ($REATTACH_ON_RELOAD) {
2722	warn "reattaching attachments to objects/players";	3754	warn "reattaching attachments to objects/players";
2723	_global_reattach; # objects, sockets	3755	_global_reattach; # objects, sockets
2724	warn "reattaching attachments to maps";	3756	warn "reattaching attachments to maps";
2725	reattach $_ for values %MAP;	3757	reattach $_ for values %MAP;
2726	warn "reattaching attachments to players";	3758	warn "reattaching attachments to players";
2727	reattach $_ for values %PLAYER;	3759	reattach $_ for values %PLAYER;
		3760	}
2728		3761
		3762	warn "running post_init jobs";
		3763	(pop @POST_INIT)->(1) while @POST_INIT;
		3764
2729	warn "leaving sync_job";	3765	warn "leaving sync_job";
2730		3766
2731	1	3767	1
2732	} or do {	3768	} or do {
2733	warn $@;	3769	warn $@;
2734	warn "error while reloading, exiting.";	3770	cf::cleanup "error while reloading, exiting.";
2735	exit 1;
2736	};	3771	};
2737		3772
2738	warn "reloaded";	3773	warn "reloaded";
		3774	--$RELOAD;
		3775	}
		3776
		3777	$t1 = EV::time - $t1;
		3778	warn "reload completed in ${t1}s\n";
2739	};	3779	};
2740		3780
2741	our $RELOAD_WATCHER; # used only during reload	3781	our $RELOAD_WATCHER; # used only during reload
2742		3782
2743	sub reload_perl() {	3783	sub reload_perl() {
2744	# doing reload synchronously and two reloads happen back-to-back,	3784	# doing reload synchronously and two reloads happen back-to-back,
2745	# coro crashes during coro_state_free->destroy here.	3785	# coro crashes during coro_state_free->destroy here.
2746		3786
2747	$RELOAD_WATCHER ||= Event->timer (	3787	$RELOAD_WATCHER ||= cf::async {
2748	reentrant => 0,	3788	Coro::AIO::aio_wait cache_extensions;
2749	after => 0,	3789
2750	data => WF_AUTOCANCEL,	3790	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
2751	cb => sub {
2752	do_reload_perl;	3791	do_reload_perl;
2753	undef $RELOAD_WATCHER;	3792	undef $RELOAD_WATCHER;
2754	},	3793	};
2755	);	3794	};
2756	}	3795	}
2757		3796
2758	register_command "reload" => sub {	3797	register_command "reload" => sub {
2759	my ($who, $arg) = @_;	3798	my ($who, $arg) = @_;
2760		3799
2761	if ($who->flag (FLAG_WIZ)) {	3800	if ($who->flag (FLAG_WIZ)) {
2762	$who->message ("reloading server.");	3801	$who->message ("reloading server.");
		3802	async {
		3803	$Coro::current->{desc} = "perl_reload";
2763	async { reload_perl };	3804	reload_perl;
		3805	};
2764	}	3806	}
2765	};	3807	};
2766		3808
2767	unshift @INC, $LIBDIR;	3809	unshift @INC, $LIBDIR;
2768		3810
…		…
2770		3812
2771	our @WAIT_FOR_TICK;	3813	our @WAIT_FOR_TICK;
2772	our @WAIT_FOR_TICK_BEGIN;	3814	our @WAIT_FOR_TICK_BEGIN;
2773		3815
2774	sub wait_for_tick {	3816	sub wait_for_tick {
2775	return unless $TICK_WATCHER->is_active;
2776	return if $Coro::current == $Coro::main;	3817	return if tick_inhibit || $Coro::current == $Coro::main;
2777		3818
2778	my $signal = new Coro::Signal;	3819	my $signal = new Coro::Signal;
2779	push @WAIT_FOR_TICK, $signal;	3820	push @WAIT_FOR_TICK, $signal;
2780	$signal->wait;	3821	$signal->wait;
2781	}	3822	}
2782		3823
2783	sub wait_for_tick_begin {	3824	sub wait_for_tick_begin {
2784	return unless $TICK_WATCHER->is_active;
2785	return if $Coro::current == $Coro::main;	3825	return if tick_inhibit || $Coro::current == $Coro::main;
2786		3826
2787	my $signal = new Coro::Signal;	3827	my $signal = new Coro::Signal;
2788	push @WAIT_FOR_TICK_BEGIN, $signal;	3828	push @WAIT_FOR_TICK_BEGIN, $signal;
2789	$signal->wait;	3829	$signal->wait;
2790	}	3830	}
2791		3831
2792	$TICK_WATCHER = Event->timer (	3832	sub tick {
2793	reentrant => 0,
2794	parked => 1,
2795	prio => 0,
2796	at => $NEXT_TICK || $TICK,
2797	data => WF_AUTOCANCEL,
2798	cb => sub {
2799	if ($Coro::current != $Coro::main) {	3833	if ($Coro::current != $Coro::main) {
2800	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3834	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2801	unless ++$bug_warning > 10;	3835	unless ++$bug_warning > 10;
2802	return;	3836	return;
2803	}	3837	}
2804		3838
2805	$NOW = Event::time;
2806
2807	cf::server_tick; # one server iteration	3839	cf::server_tick; # one server iteration
2808		3840
2809	$RUNTIME += $TICK;
2810	$NEXT_TICK += $TICK;
2811
2812	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3841	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2813	$NEXT_RUNTIME_WRITE = $NOW + 10;	3842	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2814	Coro::async_pool {	3843	Coro::async_pool {
		3844	$Coro::current->{desc} = "runtime saver";
2815	write_runtime	3845	write_runtime_sync
2816	or warn "ERROR: unable to write runtime file: $!";	3846	or warn "ERROR: unable to write runtime file: $!";
2817	};
2818	}	3847	};
		3848	}
2819		3849
2820	# my $AFTER = Event::time;
2821	# warn $AFTER - $NOW;#d#
2822
2823	# if we are delayed by four ticks or more, skip them all
2824	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2825
2826	$TICK_WATCHER->at ($NEXT_TICK);
2827	$TICK_WATCHER->start;
2828
2829	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3850	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2830	$sig->send;	3851	$sig->send;
2831	}	3852	}
2832	while (my $sig = shift @WAIT_FOR_TICK) {	3853	while (my $sig = shift @WAIT_FOR_TICK) {
2833	$sig->send;	3854	$sig->send;
2834	}
2835
2836	_post_tick;
2837	},	3855	}
2838	);	3856
		3857	$LOAD = ($NOW - $TICK_START) / $TICK;
		3858	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3859
		3860	if (0) {
		3861	if ($NEXT_TICK) {
		3862	my $jitter = $TICK_START - $NEXT_TICK;
		3863	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3864	warn "jitter $JITTER\n";#d#
		3865	}
		3866	}
		3867	}
2839		3868
2840	{	3869	{
2841	BDB::max_poll_time $TICK * 0.1;	3870	# configure BDB
2842	$BDB_POLL_WATCHER = Event->io (	3871
2843	reentrant => 0,
2844	fd => BDB::poll_fileno,
2845	poll => 'r',
2846	prio => 0,
2847	data => WF_AUTOCANCEL,
2848	cb => \&BDB::poll_cb,
2849	);
2850	BDB::min_parallel 8;	3872	BDB::min_parallel 8;
2851		3873	BDB::max_poll_reqs $TICK * 0.1;
2852	BDB::set_sync_prepare {	3874	$AnyEvent::BDB::WATCHER->priority (1);
2853	my $status;
2854	my $current = $Coro::current;
2855	(
2856	sub {
2857	$status = $!;
2858	$current->ready; undef $current;
2859	},
2860	sub {
2861	Coro::schedule while defined $current;
2862	$! = $status;
2863	},
2864	)
2865	};
2866		3875
2867	unless ($DB_ENV) {	3876	unless ($DB_ENV) {
2868	$DB_ENV = BDB::db_env_create;	3877	$DB_ENV = BDB::db_env_create;
		3878	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3879	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3880	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3881	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3882	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2869		3883
2870	cf::sync_job {	3884	cf::sync_job {
2871	eval {	3885	eval {
2872	BDB::db_env_open	3886	BDB::db_env_open
2873	$DB_ENV,	3887	$DB_ENV,
2874	$BDB_ENV_DIR,	3888	$BDBDIR,
2875	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3889	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2876	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3890	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2877	0666;	3891	0666;
2878		3892
2879	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3893	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2880
2881	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2882	$DB_ENV->set_lk_detect;
2883	};	3894	};
2884		3895
2885	cf::cleanup "db_env_open(db): $@" if $@;	3896	cf::cleanup "db_env_open(db): $@" if $@;
2886	};	3897	};
2887	}	3898	}
		3899
		3900	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3901	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3902	};
		3903	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3904	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3905	};
		3906	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3907	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3908	};
2888	}	3909	}
2889		3910
2890	{	3911	{
		3912	# configure IO::AIO
		3913
2891	IO::AIO::min_parallel 8;	3914	IO::AIO::min_parallel 8;
2892
2893	undef $Coro::AIO::WATCHER;
2894	IO::AIO::max_poll_time $TICK * 0.1;	3915	IO::AIO::max_poll_time $TICK * 0.1;
2895	$AIO_POLL_WATCHER = Event->io (	3916	undef $AnyEvent::AIO::WATCHER;
2896	reentrant => 0,	3917	}
2897	data => WF_AUTOCANCEL,	3918
2898	fd => IO::AIO::poll_fileno,	3919	my $_log_backtrace;
2899	poll => 'r',	3920
2900	prio => 6,	3921	sub _log_backtrace {
2901	cb => \&IO::AIO::poll_cb,	3922	my ($msg, @addr) = @_;
2902	);	3923
		3924	$msg =~ s/\n//;
		3925
		3926	# limit the # of concurrent backtraces
		3927	if ($_log_backtrace < 2) {
		3928	++$_log_backtrace;
		3929	my $perl_bt = Carp::longmess $msg;
		3930	async {
		3931	$Coro::current->{desc} = "abt $msg";
		3932
		3933	my @bt = fork_call {
		3934	@addr = map { sprintf "%x", $_ } @addr;
		3935	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3936	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3937	or die "addr2line: $!";
		3938
		3939	my @funcs;
		3940	my @res = <$fh>;
		3941	chomp for @res;
		3942	while (@res) {
		3943	my ($func, $line) = splice @res, 0, 2, ();
		3944	push @funcs, "[$func] $line";
		3945	}
		3946
		3947	@funcs
		3948	};
		3949
		3950	LOG llevInfo, "[ABT] $perl_bt\n";
		3951	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3952	LOG llevInfo, "[ABT] $_\n" for @bt;
		3953	--$_log_backtrace;
		3954	};
		3955	} else {
		3956	LOG llevInfo, "[ABT] $msg\n";
		3957	LOG llevInfo, "[ABT] [suppressed]\n";
		3958	}
2903	}	3959	}
2904		3960
2905	# load additional modules	3961	# load additional modules
2906	use cf::pod;	3962	require "cf/$_.pm" for @EXTRA_MODULES;
2907		3963
2908	END { cf::emergency_save }	3964	END { cf::emergency_save }
2909		3965
2910	1	3966	1
2911		3967

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