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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.166 by root, Sat Jan 13 23:06:13 2007 UTC vs.
Revision 1.419 by root, Sun Apr 13 01:34:09 2008 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
3	use utf8;	24	use utf8;
4	use strict;	25	use strict;
5		26
6	use Symbol;	27	use Symbol;
7	use List::Util;	28	use List::Util;
8	use Storable;	29	use Socket;
		30	use EV 3.2;
9	use Opcode;	31	use Opcode;
10	use Safe;	32	use Safe;
11	use Safe::Hole;	33	use Safe::Hole;
		34	use Storable ();
12		35
13	use Coro 3.3 ();	36	use Coro 4.50 ();
		37	use Coro::State;
		38	use Coro::Handle;
14	use Coro::Event;	39	use Coro::EV;
15	use Coro::Timer;	40	use Coro::Timer;
16	use Coro::Signal;	41	use Coro::Signal;
17	use Coro::Semaphore;	42	use Coro::Semaphore;
18	use Coro::AIO;	43	use Coro::AIO;
		44	use Coro::BDB;
		45	use Coro::Storable;
		46	use Coro::Util ();
19		47
		48	use JSON::XS 2.01 ();
		49	use BDB ();
20	use Data::Dumper;	50	use Data::Dumper;
21	use Digest::MD5;	51	use Digest::MD5;
22	use Fcntl;	52	use Fcntl;
		53	use YAML ();
23	use IO::AIO 2.32 ();	54	use IO::AIO 2.51 ();
24	use YAML::Syck ();
25	use Time::HiRes;	55	use Time::HiRes;
		56	use Compress::LZF;
		57	use Digest::MD5 ();
26		58
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	59	# configure various modules to our taste
		60	#
		61	$Storable::canonical = 1; # reduce rsync transfers
		62	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		63	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		64
		65	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
28		66
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	67	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		68
36	our %COMMAND = ();	69	our %COMMAND = ();
37	our %COMMAND_TIME = ();	70	our %COMMAND_TIME = ();
38		71
39	our @EXTS = (); # list of extension package names	72	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	73	our %EXTCMD = ();
		74	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	75	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	76	our %EXT_MAP = (); # pluggable maps
43		77
		78	our $RELOAD; # number of reloads so far
44	our @EVENT;	79	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		80
47	our $TICK = MAX_TIME * 1e-6;	81	our $CONFDIR = confdir;
		82	our $DATADIR = datadir;
		83	our $LIBDIR = "$DATADIR/ext";
		84	our $PODDIR = "$DATADIR/pod";
		85	our $MAPDIR = "$DATADIR/" . mapdir;
		86	our $LOCALDIR = localdir;
		87	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		88	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		89	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		90	our $RANDOMDIR = "$LOCALDIR/random";
		91	our $BDBDIR = "$LOCALDIR/db";
		92	our %RESOURCE;
		93
		94	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48	our $TICK_WATCHER;	95	our $AIO_POLL_WATCHER;
		96	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
49	our $NEXT_TICK;	97	our $NEXT_TICK;
50	our $NOW;	98	our $USE_FSYNC = 1; # use fsync to write maps - default off
		99
		100	our $BDB_POLL_WATCHER;
		101	our $BDB_DEADLOCK_WATCHER;
		102	our $BDB_CHECKPOINT_WATCHER;
		103	our $BDB_TRICKLE_WATCHER;
		104	our $DB_ENV;
51		105
52	our %CFG;	106	our %CFG;
53		107
54	our $UPTIME; $UPTIME ||= time;	108	our $UPTIME; $UPTIME ||= time;
55	our $RUNTIME;	109	our $RUNTIME;
		110	our $NOW;
56		111
57	our %PLAYER; # all users	112	our (%PLAYER, %PLAYER_LOADING); # all users
58	our %MAP; # all maps	113	our (%MAP, %MAP_LOADING ); # all maps
59	our $LINK_MAP; # the special {link} map, which is always available	114	our $LINK_MAP; # the special {link} map, which is always available
60	our $RANDOM_MAPS = cf::localdir . "/random";
61
62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
63	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
64		115
65	# used to convert map paths into valid unix filenames by replacing / by ∕	116	# used to convert map paths into valid unix filenames by replacing / by ∕
66	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	117	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
67		118
		119	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		120	our $LOADAVG; # same thing, but with alpha-smoothing
		121	our $JITTER; # average jitter
		122	our $TICK_START; # for load detecting purposes
		123
68	binmode STDOUT;	124	binmode STDOUT;
69	binmode STDERR;	125	binmode STDERR;
70		126
71	# read virtual server time, if available	127	# read virtual server time, if available
72	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	128	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
73	open my $fh, "<", cf::localdir . "/runtime"	129	open my $fh, "<", "$LOCALDIR/runtime"
74	or die "unable to read runtime file: $!";	130	or die "unable to read runtime file: $!";
75	$RUNTIME = <$fh> + 0.;	131	$RUNTIME = <$fh> + 0.;
76	}	132	}
77		133
78	mkdir cf::localdir;	134	mkdir $_
79	mkdir cf::localdir . "/" . cf::playerdir;	135	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
80	mkdir cf::localdir . "/" . cf::tmpdir;
81	mkdir cf::localdir . "/" . cf::uniquedir;
82	mkdir $RANDOM_MAPS;
83		136
84	our $EMERGENCY_POSITION;	137	our $EMERGENCY_POSITION;
		138
		139	sub cf::map::normalise;
85		140
86	#############################################################################	141	#############################################################################
87		142
88	=head2 GLOBAL VARIABLES	143	=head2 GLOBAL VARIABLES
89		144
…		…
96	=item $cf::RUNTIME	151	=item $cf::RUNTIME
97		152
98	The time this server has run, starts at 0 and is increased by $cf::TICK on	153	The time this server has run, starts at 0 and is increased by $cf::TICK on
99	every server tick.	154	every server tick.
100		155
101	=item $cf::LIBDIR	156	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		157	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		158	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
102		159
103	The perl library directory, where extensions and cf-specific modules can	160	Various directories - "/etc", read-only install directory, perl-library
104	be found. It will be added to C<@INC> automatically.	161	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		162	unique-items directory, player file directory, random maps directory and
		163	database environment.
105		164
106	=item $cf::NOW	165	=item $cf::NOW
107		166
108	The time of the last (current) server tick.	167	The time of the last (current) server tick.
109		168
110	=item $cf::TICK	169	=item $cf::TICK
111		170
112	The interval between server ticks, in seconds.	171	The interval between server ticks, in seconds.
113		172
		173	=item $cf::LOADAVG
		174
		175	The current CPU load on the server (alpha-smoothed), as a value between 0
		176	(none) and 1 (overloaded), indicating how much time is spent on processing
		177	objects per tick. Healthy values are < 0.5.
		178
		179	=item $cf::LOAD
		180
		181	The raw value load value from the last tick.
		182
114	=item %cf::CFG	183	=item %cf::CFG
115		184
116	Configuration for the server, loaded from C</etc/crossfire/config>, or	185	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
117	from wherever your confdir points to.	186	from wherever your confdir points to.
118		187
119	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	188	=item cf::wait_for_tick, cf::wait_for_tick_begin
120		189
121	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	190	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
122	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	191	returns directly I<after> the tick processing (and consequently, can only wake one process
123	processing has been done. Call C<< ->wait >> on them to maximise the	192	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
124	window of cpu time available, or simply to synchronise to the server tick.	193
		194	=item @cf::INVOKE_RESULTS
		195
		196	This array contains the results of the last C<invoke ()> call. When
		197	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		198	that call.
125		199
126	=back	200	=back
127		201
128	=cut	202	=cut
129		203
130	BEGIN {	204	BEGIN {
131	*CORE::GLOBAL::warn = sub {	205	*CORE::GLOBAL::warn = sub {
132	my $msg = join "", @_;	206	my $msg = join "", @_;
133	utf8::encode $msg;
134		207
135	$msg .= "\n"	208	$msg .= "\n"
136	unless $msg =~ /\n$/;	209	unless $msg =~ /\n$/;
137		210
		211	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		212
138	LOG llevError, $msg;	213	LOG llevError, $msg;
139	};	214	};
140	}	215	}
		216
		217	$Coro::State::DIEHOOK = sub {
		218	return unless $^S eq 0; # "eq", not "=="
		219
		220	if ($Coro::current == $Coro::main) {#d#
		221	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		222	return;#d#
		223	}#d#
		224
		225	# kill coroutine otherwise
		226	warn Carp::longmess $_[0];
		227	Coro::terminate
		228	};
		229
		230	$SIG{__DIE__} = sub { }; #d#?
141		231
142	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	232	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
143	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	233	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
144	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	234	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
145	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	235	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
146	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	236	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		237	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
147	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	238	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
148		239
149	# we bless all objects into (empty) derived classes to force a method lookup	240	# we bless all objects into (empty) derived classes to force a method lookup
150	# within the Safe compartment.	241	# within the Safe compartment.
151	for my $pkg (qw(	242	for my $pkg (qw(
152	cf::global cf::attachable	243	cf::global cf::attachable
…		…
157	)) {	248	)) {
158	no strict 'refs';	249	no strict 'refs';
159	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	250	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
160	}	251	}
161		252
162	$Event::DIED = sub {	253	$EV::DIED = sub {
163	warn "error in event callback: @_";	254	warn "error in event callback: @_";
164	};	255	};
		256
		257	#############################################################################
165		258
166	=head2 UTILITY FUNCTIONS	259	=head2 UTILITY FUNCTIONS
167		260
168	=over 4	261	=over 4
169		262
…		…
188	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	281	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
189	$d	282	$d
190	} || "[unable to dump $_[0]: '$@']";	283	} || "[unable to dump $_[0]: '$@']";
191	}	284	}
192		285
193	use JSON::Syck (); # TODO# replace by JSON::PC once working
194
195	=item $ref = cf::from_json $json	286	=item $ref = cf::decode_json $json
196		287
197	Converts a JSON string into the corresponding perl data structure.	288	Converts a JSON string into the corresponding perl data structure.
198		289
199	=cut
200
201	sub from_json($) {
202	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203	JSON::Syck::Load $_[0]
204	}
205
206	=item $json = cf::to_json $ref	290	=item $json = cf::encode_json $ref
207		291
208	Converts a perl data structure into its JSON representation.	292	Converts a perl data structure into its JSON representation.
209		293
210	=cut	294	=cut
211		295
212	sub to_json($) {	296	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	297
214	JSON::Syck::Dump $_[0]	298	sub encode_json($) { $json_coder->encode ($_[0]) }
215	}	299	sub decode_json($) { $json_coder->decode ($_[0]) }
216		300
217	=item cf::lock_wait $string	301	=item cf::lock_wait $string
218		302
219	Wait until the given lock is available. See cf::lock_acquire.	303	Wait until the given lock is available. See cf::lock_acquire.
220		304
…		…
223	Wait until the given lock is available and then acquires it and returns	307	Wait until the given lock is available and then acquires it and returns
224	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	308	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
225	for example when the coroutine gets canceled), the lock is automatically	309	for example when the coroutine gets canceled), the lock is automatically
226	returned.	310	returned.
227		311
		312	Locks are *not* recursive, locking from the same coro twice results in a
		313	deadlocked coro.
		314
228	Lock names should begin with a unique identifier (for example, cf::map::find	315	Lock names should begin with a unique identifier (for example, cf::map::find
229	uses map_find and cf::map::load uses map_load).	316	uses map_find and cf::map::load uses map_load).
230		317
		318	=item $locked = cf::lock_active $string
		319
		320	Return true if the lock is currently active, i.e. somebody has locked it.
		321
231	=cut	322	=cut
232		323
233	our %LOCK;	324	our %LOCK;
		325	our %LOCKER;#d#
234		326
235	sub lock_wait($) {	327	sub lock_wait($) {
236	my ($key) = @_;	328	my ($key) = @_;
		329
		330	if ($LOCKER{$key} == $Coro::current) {#d#
		331	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		332	return;#d#
		333	}#d#
237		334
238	# wait for lock, if any	335	# wait for lock, if any
239	while ($LOCK{$key}) {	336	while ($LOCK{$key}) {
240	push @{ $LOCK{$key} }, $Coro::current;	337	push @{ $LOCK{$key} }, $Coro::current;
241	Coro::schedule;	338	Coro::schedule;
…		…
247		344
248	# wait, to be sure we are not locked	345	# wait, to be sure we are not locked
249	lock_wait $key;	346	lock_wait $key;
250		347
251	$LOCK{$key} = [];	348	$LOCK{$key} = [];
		349	$LOCKER{$key} = $Coro::current;#d#
252		350
253	Coro::guard {	351	Coro::guard {
		352	delete $LOCKER{$key};#d#
254	# wake up all waiters, to be on the safe side	353	# wake up all waiters, to be on the safe side
255	$_->ready for @{ delete $LOCK{$key} };	354	$_->ready for @{ delete $LOCK{$key} };
256	}	355	}
257	}	356	}
258		357
		358	sub lock_active($) {
		359	my ($key) = @_;
		360
		361	! ! $LOCK{$key}
		362	}
		363
259	sub freeze_mainloop {	364	sub freeze_mainloop {
260	return unless $TICK_WATCHER->is_active;	365	tick_inhibit_inc;
261		366
262	my $guard = Coro::guard { $TICK_WATCHER->start };	367	Coro::guard \&tick_inhibit_dec;
263	$TICK_WATCHER->stop;	368	}
264	$guard	369
		370	=item cf::periodic $interval, $cb
		371
		372	Like EV::periodic, but randomly selects a starting point so that the actions
		373	get spread over timer.
		374
		375	=cut
		376
		377	sub periodic($$) {
		378	my ($interval, $cb) = @_;
		379
		380	my $start = rand List::Util::min 180, $interval;
		381
		382	EV::periodic $start, $interval, 0, $cb
		383	}
		384
		385	=item cf::get_slot $time[, $priority[, $name]]
		386
		387	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		388	This call blocks and returns only when you have at least C<$time> seconds
		389	of cpu time till the next tick. The slot is only valid till the next cede.
		390
		391	The optional C<$name> can be used to identify the job to run. It might be
		392	used for statistical purposes and should identify the same time-class.
		393
		394	Useful for short background jobs.
		395
		396	=cut
		397
		398	our @SLOT_QUEUE;
		399	our $SLOT_QUEUE;
		400
		401	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		402	$SLOT_QUEUE = Coro::async {
		403	$Coro::current->desc ("timeslot manager");
		404
		405	my $signal = new Coro::Signal;
		406
		407	while () {
		408	next_job:
		409	my $avail = cf::till_tick;
		410	if ($avail > 0.01) {
		411	for (0 .. $#SLOT_QUEUE) {
		412	if ($SLOT_QUEUE[$_][0] < $avail) {
		413	my $job = splice @SLOT_QUEUE, $_, 1, ();
		414	$job->[2]->send;
		415	Coro::cede;
		416	goto next_job;
		417	}
		418	}
		419	}
		420
		421	if (@SLOT_QUEUE) {
		422	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		423	push @cf::WAIT_FOR_TICK, $signal;
		424	$signal->wait;
		425	} else {
		426	Coro::schedule;
		427	}
		428	}
		429	};
		430
		431	sub get_slot($;$$) {
		432	my ($time, $pri, $name) = @_;
		433
		434	$time = $TICK * .6 if $time > $TICK * .6;
		435	my $sig = new Coro::Signal;
		436
		437	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		438	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		439	$SLOT_QUEUE->ready;
		440	$sig->wait;
265	}	441	}
266		442
267	=item cf::async { BLOCK }	443	=item cf::async { BLOCK }
268		444
269	Currently the same as Coro::async_pool, meaning you cannot use	445	Currently the same as Coro::async_pool, meaning you cannot use
…		…
274		450
275	BEGIN { *async = \&Coro::async_pool }	451	BEGIN { *async = \&Coro::async_pool }
276		452
277	=item cf::sync_job { BLOCK }	453	=item cf::sync_job { BLOCK }
278		454
279	The design of crossfire+ requires that the main coro ($Coro::main) is	455	The design of Deliantra requires that the main coroutine ($Coro::main)
280	always able to handle events or runnable, as crossfire+ is only partly	456	is always able to handle events or runnable, as Deliantra is only
281	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	457	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		458	acceptable.
282		459
283	If it must be done, put the blocking parts into C<sync_job>. This will run	460	If it must be done, put the blocking parts into C<sync_job>. This will run
284	the given BLOCK in another coroutine while waiting for the result. The	461	the given BLOCK in another coroutine while waiting for the result. The
285	server will be frozen during this time, so the block should either finish	462	server will be frozen during this time, so the block should either finish
286	fast or be very important.	463	fast or be very important.
…		…
289		466
290	sub sync_job(&) {	467	sub sync_job(&) {
291	my ($job) = @_;	468	my ($job) = @_;
292		469
293	if ($Coro::current == $Coro::main) {	470	if ($Coro::current == $Coro::main) {
		471	my $time = EV::time;
		472
294	# this is the main coro, too bad, we have to block	473	# this is the main coro, too bad, we have to block
295	# till the operation succeeds, freezing the server :/	474	# till the operation succeeds, freezing the server :/
296		475
297	# TODO: use suspend/resume instead	476	LOG llevError, Carp::longmess "sync job";#d#
298	# (but this is cancel-safe)	477
299	my $freeze_guard = freeze_mainloop;	478	my $freeze_guard = freeze_mainloop;
300		479
301	my $busy = 1;	480	my $busy = 1;
302	my @res;	481	my @res;
303		482
304	(async {	483	(async {
		484	$Coro::current->desc ("sync job coro");
305	@res = eval { $job->() };	485	@res = eval { $job->() };
306	warn $@ if $@;	486	warn $@ if $@;
307	undef $busy;	487	undef $busy;
308	})->prio (Coro::PRIO_MAX);	488	})->prio (Coro::PRIO_MAX);
309		489
310	while ($busy) {	490	while ($busy) {
311	Coro::cede or Event::one_event;	491	if (Coro::nready) {
		492	Coro::cede_notself;
		493	} else {
		494	EV::loop EV::LOOP_ONESHOT;
312	}	495	}
		496	}
		497
		498	my $time = EV::time - $time;
		499
		500	$TICK_START += $time; # do not account sync jobs to server load
313		501
314	wantarray ? @res : $res[0]	502	wantarray ? @res : $res[0]
315	} else {	503	} else {
316	# we are in another coroutine, how wonderful, everything just works	504	# we are in another coroutine, how wonderful, everything just works
317		505
…		…
337	$EXT_CORO{$coro+0} = $coro;	525	$EXT_CORO{$coro+0} = $coro;
338		526
339	$coro	527	$coro
340	}	528	}
341		529
342	sub write_runtime {	530	=item fork_call { }, $args
343	return unless $TICK_WATCHER->is_active;
344		531
345	my $runtime = cf::localdir . "/runtime";	532	Executes the given code block with the given arguments in a seperate
		533	process, returning the results. Everything must be serialisable with
		534	Coro::Storable. May, of course, block. Note that the executed sub may
		535	never block itself or use any form of event handling.
346		536
347	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	537	=cut
348	or return;
349		538
350	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	539	sub fork_call(&@) {
351	(aio_write $fh, 0, (length $value), $value, 0) <= 0	540	my ($cb, @args) = @_;
352	and return;
353		541
354	aio_fsync $fh	542	# we seemingly have to make a local copy of the whole thing,
355	and return;	543	# otherwise perl prematurely frees the stuff :/
		544	# TODO: investigate and fix (likely this will be rather laborious)
356		545
357	close $fh	546	my @res = Coro::Util::fork_eval {
358	or return;	547	reset_signals;
		548	&$cb
		549	}, @args;
359		550
360	aio_rename "$runtime~", $runtime	551	wantarray ? @res : $res[-1]
361	and return;	552	}
362		553
		554	=item $coin = coin_from_name $name
		555
		556	=cut
		557
		558	our %coin_alias = (
		559	"silver" => "silvercoin",
		560	"silvercoin" => "silvercoin",
		561	"silvercoins" => "silvercoin",
		562	"gold" => "goldcoin",
		563	"goldcoin" => "goldcoin",
		564	"goldcoins" => "goldcoin",
		565	"platinum" => "platinacoin",
		566	"platinumcoin" => "platinacoin",
		567	"platinumcoins" => "platinacoin",
		568	"platina" => "platinacoin",
		569	"platinacoin" => "platinacoin",
		570	"platinacoins" => "platinacoin",
		571	"royalty" => "royalty",
		572	"royalties" => "royalty",
		573	);
		574
		575	sub coin_from_name($) {
		576	$coin_alias{$_[0]}
		577	? cf::arch::find $coin_alias{$_[0]}
		578	: undef
		579	}
		580
		581	=item $value = cf::db_get $family => $key
		582
		583	Returns a single value from the environment database.
		584
		585	=item cf::db_put $family => $key => $value
		586
		587	Stores the given C<$value> in the family. It can currently store binary
		588	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		589
		590	=item $db = cf::db_table "name"
		591
		592	Create and/or open a new database table. The string must not be "db" and must be unique
		593	within each server.
		594
		595	=cut
		596
		597	sub db_table($) {
		598	my ($name) = @_;
		599	my $db = BDB::db_create $DB_ENV;
		600
		601	eval {
		602	$db->set_flags (BDB::CHKSUM);
		603
		604	utf8::encode $name;
		605	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		606	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		607	cf::cleanup "db_open(db): $!" if $!;
		608	};
		609	cf::cleanup "db_open(db): $@" if $@;
		610
		611	$db
		612	}
		613
		614	our $DB;
		615
		616	sub db_init {
		617	cf::sync_job {
		618	$DB ||= db_table "db";
		619	};
		620	}
		621
		622	sub db_get($$) {
		623	my $key = "$_[0]/$_[1]";
		624
		625	cf::sync_job {
		626	BDB::db_get $DB, undef, $key, my $data;
		627
		628	$! ? ()
		629	: $data
363	1	630	}
		631	}
		632
		633	sub db_put($$$) {
		634	BDB::dbreq_pri 4;
		635	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		636	}
		637
		638	=item cf::cache $id => [$paths...], $processversion => $process
		639
		640	Generic caching function that returns the value of the resource $id,
		641	caching and regenerating as required.
		642
		643	This function can block.
		644
		645	=cut
		646
		647	sub cache {
		648	my ($id, $src, $processversion, $process) = @_;
		649
		650	my $meta =
		651	join "\x00",
		652	$processversion,
		653	map {
		654	aio_stat $_
		655	and Carp::croak "$_: $!";
		656
		657	($_, (stat _)[7,9])
		658	} @$src;
		659
		660	my $dbmeta = db_get cache => "$id/meta";
		661	if ($dbmeta ne $meta) {
		662	# changed, we may need to process
		663
		664	my @data;
		665	my $md5;
		666
		667	for (0 .. $#$src) {
		668	0 <= aio_load $src->[$_], $data[$_]
		669	or Carp::croak "$src->[$_]: $!";
		670	}
		671
		672	# if processing is expensive, check
		673	# checksum first
		674	if (1) {
		675	$md5 =
		676	join "\x00",
		677	$processversion,
		678	map {
		679	cf::cede_to_tick;
		680	($src->[$_], Digest::MD5::md5_hex $data[$_])
		681	} 0.. $#$src;
		682
		683
		684	my $dbmd5 = db_get cache => "$id/md5";
		685	if ($dbmd5 eq $md5) {
		686	db_put cache => "$id/meta", $meta;
		687
		688	return db_get cache => "$id/data";
		689	}
		690	}
		691
		692	my $t1 = Time::HiRes::time;
		693	my $data = $process->(\@data);
		694	my $t2 = Time::HiRes::time;
		695
		696	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		697
		698	db_put cache => "$id/data", $data;
		699	db_put cache => "$id/md5" , $md5;
		700	db_put cache => "$id/meta", $meta;
		701
		702	return $data;
		703	}
		704
		705	db_get cache => "$id/data"
		706	}
		707
		708	=item cf::datalog type => key => value, ...
		709
		710	Log a datalog packet of the given type with the given key-value pairs.
		711
		712	=cut
		713
		714	sub datalog($@) {
		715	my ($type, %kv) = @_;
		716	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
364	}	717	}
365		718
366	=back	719	=back
367		720
368	=cut	721	=cut
…		…
375	attach callbacks/event handlers (a collection of which is called an "attachment")	728	attach callbacks/event handlers (a collection of which is called an "attachment")
376	to it. All such attachable objects support the following methods.	729	to it. All such attachable objects support the following methods.
377		730
378	In the following description, CLASS can be any of C<global>, C<object>	731	In the following description, CLASS can be any of C<global>, C<object>
379	C<player>, C<client> or C<map> (i.e. the attachable objects in	732	C<player>, C<client> or C<map> (i.e. the attachable objects in
380	crossfire+).	733	Deliantra).
381		734
382	=over 4	735	=over 4
383		736
384	=item $attachable->attach ($attachment, key => $value...)	737	=item $attachable->attach ($attachment, key => $value...)
385		738
…		…
499	our @CB_TYPE = (); # registry for type (cf-object class) based events	852	our @CB_TYPE = (); # registry for type (cf-object class) based events
500	our @CB_MAP = ();	853	our @CB_MAP = ();
501		854
502	my %attachment;	855	my %attachment;
503		856
		857	sub cf::attachable::thawer_merge {
		858	# simply override everything except _meta
		859	local $_[0]{_meta};
		860	%{$_[0]} = %{$_[1]};
		861	}
		862
504	sub _attach_cb($$$$) {	863	sub _attach_cb($$$$) {
505	my ($registry, $event, $prio, $cb) = @_;	864	my ($registry, $event, $prio, $cb) = @_;
506		865
507	use sort 'stable';	866	use sort 'stable';
508		867
…		…
542	$registry = $CB_TYPE[$object_type] ||= [];	901	$registry = $CB_TYPE[$object_type] ||= [];
543		902
544	} elsif ($type eq "subtype") {	903	} elsif ($type eq "subtype") {
545	defined $object_type or Carp::croak "subtype specified without type";	904	defined $object_type or Carp::croak "subtype specified without type";
546	my $object_subtype = shift @arg;	905	my $object_subtype = shift @arg;
547	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	906	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
548		907
549	} elsif ($type eq "package") {	908	} elsif ($type eq "package") {
550	my $pkg = shift @arg;	909	my $pkg = shift @arg;
551		910
552	while (my ($name, $id) = each %cb_id) {	911	while (my ($name, $id) = each %cb_id) {
…		…
581	_attach $registry, $klass, @attach;	940	_attach $registry, $klass, @attach;
582	}	941	}
583		942
584	$obj->{$name} = \%arg;	943	$obj->{$name} = \%arg;
585	} else {	944	} else {
586	warn "object uses attachment '$name' that is not available, postponing.\n";	945	warn "object uses attachment '$name' which is not available, postponing.\n";
587	}	946	}
588		947
589	$obj->{_attachment}{$name} = undef;	948	$obj->{_attachment}{$name} = undef;
590	}	949	}
591		950
…		…
593	if (ref $_[0]) {	952	if (ref $_[0]) {
594	_object_attach @_;	953	_object_attach @_;
595	} else {	954	} else {
596	_attach shift->_attach_registry, @_;	955	_attach shift->_attach_registry, @_;
597	}	956	}
		957	_recalc_want;
598	};	958	};
599		959
600	# all those should be optimised	960	# all those should be optimised
601	sub cf::attachable::detach {	961	sub cf::attachable::detach {
602	my ($obj, $name) = @_;	962	my ($obj, $name) = @_;
…		…
605	delete $obj->{_attachment}{$name};	965	delete $obj->{_attachment}{$name};
606	reattach ($obj);	966	reattach ($obj);
607	} else {	967	} else {
608	Carp::croak "cannot, currently, detach class attachments";	968	Carp::croak "cannot, currently, detach class attachments";
609	}	969	}
		970	_recalc_want;
610	};	971	};
611		972
612	sub cf::attachable::attached {	973	sub cf::attachable::attached {
613	my ($obj, $name) = @_;	974	my ($obj, $name) = @_;
614		975
…		…
629	";	990	";
630	die if $@;	991	die if $@;
631	}	992	}
632		993
633	our $override;	994	our $override;
634	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	995	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
635		996
636	sub override {	997	sub override {
637	$override = 1;	998	$override = 1;
638	@invoke_results = ();	999	@INVOKE_RESULTS = (@_);
639	}	1000	}
640		1001
641	sub do_invoke {	1002	sub do_invoke {
642	my $event = shift;	1003	my $event = shift;
643	my $callbacks = shift;	1004	my $callbacks = shift;
644		1005
645	@invoke_results = ();	1006	@INVOKE_RESULTS = ();
646		1007
647	local $override;	1008	local $override;
648		1009
649	for (@$callbacks) {	1010	for (@$callbacks) {
650	eval { &{$_->[1]} };	1011	eval { &{$_->[1]} };
…		…
659	}	1020	}
660		1021
661	0	1022	0
662	}	1023	}
663		1024
664	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1025	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
665		1026
666	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1027	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
667		1028
668	Generate an object-specific event with the given arguments.	1029	Generate an object-specific event with the given arguments.
669		1030
670	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1031	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
671	removed in future versions), and there is no public API to access override	1032	removed in future versions), and there is no public API to access override
672	results (if you must, access C<@cf::invoke_results> directly).	1033	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
673		1034
674	=back	1035	=back
675		1036
676	=cut	1037	=cut
677		1038
678	#############################################################################	1039	#############################################################################
679	# object support	1040	# object support
		1041
		1042	sub _object_equal($$);
		1043	sub _object_equal($$) {
		1044	my ($a, $b) = @_;
		1045
		1046	return 0 unless (ref $a) eq (ref $b);
		1047
		1048	if ("HASH" eq ref $a) {
		1049	my @ka = keys %$a;
		1050	my @kb = keys %$b;
		1051
		1052	return 0 if @ka != @kb;
		1053
		1054	for (0 .. $#ka) {
		1055	return 0 unless $ka[$_] eq $kb[$_];
		1056	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1057	}
		1058
		1059	} elsif ("ARRAY" eq ref $a) {
		1060
		1061	return 0 if @$a != @$b;
		1062
		1063	for (0 .. $#$a) {
		1064	return 0 unless _object_equal $a->[$_], $b->[$_];
		1065	}
		1066
		1067	} elsif ($a ne $b) {
		1068	return 0;
		1069	}
		1070
		1071	1
		1072	}
		1073
		1074	our $SLOW_MERGES;#d#
		1075	sub _can_merge {
		1076	my ($ob1, $ob2) = @_;
		1077
		1078	++$SLOW_MERGES;#d#
		1079
		1080	# we do the slow way here
		1081	return _object_equal $ob1, $ob2
		1082	}
680		1083
681	sub reattach {	1084	sub reattach {
682	# basically do the same as instantiate, without calling instantiate	1085	# basically do the same as instantiate, without calling instantiate
683	my ($obj) = @_;	1086	my ($obj) = @_;
		1087
		1088	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
684		1089
685	my $registry = $obj->registry;	1090	my $registry = $obj->registry;
686		1091
687	@$registry = ();	1092	@$registry = ();
688		1093
…		…
703	cf::attachable->attach (	1108	cf::attachable->attach (
704	prio => -1000000,	1109	prio => -1000000,
705	on_instantiate => sub {	1110	on_instantiate => sub {
706	my ($obj, $data) = @_;	1111	my ($obj, $data) = @_;
707		1112
708	$data = from_json $data;	1113	$data = decode_json $data;
709		1114
710	for (@$data) {	1115	for (@$data) {
711	my ($name, $args) = @$_;	1116	my ($name, $args) = @$_;
712		1117
713	$obj->attach ($name, %{$args || {} });	1118	$obj->attach ($name, %{$args || {} });
…		…
729	sub object_freezer_save {	1134	sub object_freezer_save {
730	my ($filename, $rdata, $objs) = @_;	1135	my ($filename, $rdata, $objs) = @_;
731		1136
732	sync_job {	1137	sync_job {
733	if (length $$rdata) {	1138	if (length $$rdata) {
		1139	utf8::decode (my $decname = $filename);
734	warn sprintf "saving %s (%d,%d)\n",	1140	warn sprintf "saving %s (%d,%d)\n",
735	$filename, length $$rdata, scalar @$objs;	1141	$decname, length $$rdata, scalar @$objs;
736		1142
737	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1143	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
738	chmod SAVE_MODE, $fh;	1144	chmod SAVE_MODE, $fh;
739	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1145	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
740	aio_fsync $fh;	1146	aio_fsync $fh if $cf::USE_FSYNC;
741	close $fh;	1147	close $fh;
742		1148
743	if (@$objs) {	1149	if (@$objs) {
744	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1150	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
745	chmod SAVE_MODE, $fh;	1151	chmod SAVE_MODE, $fh;
746	my $data = Storable::nfreeze { version => 1, objs => $objs };	1152	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
747	aio_write $fh, 0, (length $data), $data, 0;	1153	aio_write $fh, 0, (length $data), $data, 0;
748	aio_fsync $fh;	1154	aio_fsync $fh if $cf::USE_FSYNC;
749	close $fh;	1155	close $fh;
750	aio_rename "$filename.pst~", "$filename.pst";	1156	aio_rename "$filename.pst~", "$filename.pst";
751	}	1157	}
752	} else {	1158	} else {
753	aio_unlink "$filename.pst";	1159	aio_unlink "$filename.pst";
…		…
759	}	1165	}
760	} else {	1166	} else {
761	aio_unlink $filename;	1167	aio_unlink $filename;
762	aio_unlink "$filename.pst";	1168	aio_unlink "$filename.pst";
763	}	1169	}
764	}	1170	};
765	}	1171	}
766		1172
767	sub object_freezer_as_string {	1173	sub object_freezer_as_string {
768	my ($rdata, $objs) = @_;	1174	my ($rdata, $objs) = @_;
769		1175
…		…
781	or return;	1187	or return;
782		1188
783	unless (aio_stat "$filename.pst") {	1189	unless (aio_stat "$filename.pst") {
784	(aio_load "$filename.pst", $av) >= 0	1190	(aio_load "$filename.pst", $av) >= 0
785	or return;	1191	or return;
		1192
786	$av = eval { (Storable::thaw $av)->{objs} };	1193	my $st = eval { Coro::Storable::thaw $av };
		1194	$av = $st->{objs};
787	}	1195	}
788		1196
		1197	utf8::decode (my $decname = $filename);
789	warn sprintf "loading %s (%d)\n",	1198	warn sprintf "loading %s (%d,%d)\n",
790	$filename, length $data, scalar @{$av || []};#d#	1199	$decname, length $data, scalar @{$av || []};
		1200
791	return ($data, $av);	1201	($data, $av)
792	}	1202	}
		1203
		1204	=head2 COMMAND CALLBACKS
		1205
		1206	=over 4
		1207
		1208	=cut
793		1209
794	#############################################################################	1210	#############################################################################
795	# command handling &c	1211	# command handling &c
796		1212
797	=item cf::register_command $name => \&callback($ob,$args);	1213	=item cf::register_command $name => \&callback($ob,$args);
…		…
810	push @{ $COMMAND{$name} }, [$caller, $cb];	1226	push @{ $COMMAND{$name} }, [$caller, $cb];
811	}	1227	}
812		1228
813	=item cf::register_extcmd $name => \&callback($pl,$packet);	1229	=item cf::register_extcmd $name => \&callback($pl,$packet);
814		1230
815	Register a callbackf ro execution when the client sends an extcmd packet.	1231	Register a callback for execution when the client sends an (synchronous)
		1232	extcmd packet. Ext commands will be processed in the order they are
		1233	received by the server, like other user commands. The first argument is
		1234	the logged-in player. Ext commands can only be processed after a player
		1235	has logged in successfully.
816		1236
817	If the callback returns something, it is sent back as if reply was being	1237	If the callback returns something, it is sent back as if reply was being
818	called.	1238	called.
819		1239
		1240	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1241
		1242	Register a callback for execution when the client sends an (asynchronous)
		1243	exticmd packet. Exti commands are processed by the server as soon as they
		1244	are received, i.e. out of order w.r.t. other commands. The first argument
		1245	is a client socket. Exti commands can be received anytime, even before
		1246	log-in.
		1247
		1248	If the callback returns something, it is sent back as if reply was being
		1249	called.
		1250
820	=cut	1251	=cut
821		1252
822	sub register_extcmd {	1253	sub register_extcmd {
823	my ($name, $cb) = @_;	1254	my ($name, $cb) = @_;
824		1255
825	$EXTCMD{$name} = $cb;	1256	$EXTCMD{$name} = $cb;
		1257	}
		1258
		1259	sub register_exticmd {
		1260	my ($name, $cb) = @_;
		1261
		1262	$EXTICMD{$name} = $cb;
826	}	1263	}
827		1264
828	cf::player->attach (	1265	cf::player->attach (
829	on_command => sub {	1266	on_command => sub {
830	my ($pl, $name, $params) = @_;	1267	my ($pl, $name, $params) = @_;
…		…
839	cf::override;	1276	cf::override;
840	},	1277	},
841	on_extcmd => sub {	1278	on_extcmd => sub {
842	my ($pl, $buf) = @_;	1279	my ($pl, $buf) = @_;
843		1280
844	my $msg = eval { from_json $buf };	1281	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
845		1282
846	if (ref $msg) {	1283	if (ref $msg) {
		1284	my ($type, $reply, @payload) =
		1285	"ARRAY" eq ref $msg
		1286	? @$msg
		1287	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1288
		1289	my @reply;
		1290
847	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1291	if (my $cb = $EXTCMD{$type}) {
848	if (my %reply = $cb->($pl, $msg)) {	1292	@reply = $cb->($pl, @payload);
849	$pl->ext_reply ($msg->{msgid}, %reply);
850	}
851	}	1293	}
		1294
		1295	$pl->ext_reply ($reply, @reply)
		1296	if $reply;
		1297
852	} else {	1298	} else {
853	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1299	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
854	}	1300	}
855		1301
856	cf::override;	1302	cf::override;
857	},	1303	},
858	);	1304	);
859		1305
860	sub load_extension {
861	my ($path) = @_;
862
863	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
864	my $base = $1;
865	my $pkg = $1;
866	$pkg =~ s/[^[:word:]]/_/g;
867	$pkg = "ext::$pkg";
868
869	warn "... loading '$path' into '$pkg'\n";
870
871	open my $fh, "<:utf8", $path
872	or die "$path: $!";
873
874	my $source =
875	"package $pkg; use strict; use utf8;\n"
876	. "#line 1 \"$path\"\n{\n"
877	. (do { local $/; <$fh> })
878	. "\n};\n1";
879
880	unless (eval $source) {
881	my $msg = $@ ? "$path: $@\n"
882	: "extension disabled.\n";
883	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
884	warn $@;
885	warn "mandatory extension failed to load, exiting.\n";
886	exit 1;
887	}
888	die $@;
889	}
890
891	push @EXTS, $pkg;
892	}
893
894	sub load_extensions {	1306	sub load_extensions {
		1307	cf::sync_job {
		1308	my %todo;
		1309
895	for my $ext (<$LIBDIR/*.ext>) {	1310	for my $path (<$LIBDIR/*.ext>) {
896	next unless -r $ext;	1311	next unless -r $path;
897	eval {	1312
898	load_extension $ext;	1313	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1314	my $base = $1;
		1315	my $pkg = $1;
		1316	$pkg =~ s/[^[:word:]]/_/g;
		1317	$pkg = "ext::$pkg";
		1318
		1319	open my $fh, "<:utf8", $path
		1320	or die "$path: $!";
		1321
		1322	my $source = do { local $/; <$fh> };
		1323
		1324	my %ext = (
		1325	path => $path,
		1326	base => $base,
		1327	pkg => $pkg,
		1328	);
		1329
		1330	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1331	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1332
		1333	$ext{source} =
		1334	"package $pkg; use strict; use utf8;\n"
		1335	. "#line 1 \"$path\"\n{\n"
		1336	. $source
		1337	. "\n};\n1";
		1338
		1339	$todo{$base} = \%ext;
		1340	}
		1341
		1342	my %done;
		1343	while (%todo) {
		1344	my $progress;
		1345
		1346	while (my ($k, $v) = each %todo) {
		1347	for (split /,\s*/, $v->{meta}{depends}) {
		1348	goto skip
		1349	unless exists $done{$_};
		1350	}
		1351
		1352	warn "... loading '$k' into '$v->{pkg}'\n";
		1353
		1354	unless (eval $v->{source}) {
		1355	my $msg = $@ ? "$v->{path}: $@\n"
		1356	: "$v->{base}: extension inactive.\n";
		1357
		1358	if (exists $v->{meta}{mandatory}) {
		1359	warn $msg;
		1360	cf::cleanup "mandatory extension failed to load, exiting.";
		1361	}
		1362
		1363	warn $msg;
		1364	}
		1365
		1366	$done{$k} = delete $todo{$k};
		1367	push @EXTS, $v->{pkg};
		1368	$progress = 1;
899	1	1369	}
900	} or warn "$ext not loaded: $@";	1370
		1371	skip:
		1372	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1373	unless $progress;
		1374	}
901	}	1375	};
902	}	1376	}
903		1377
904	#############################################################################	1378	#############################################################################
905	# load/save/clean perl data associated with a map
906		1379
907	*cf::mapsupport::on_clean = sub {	1380	=back
908	my ($map) = @_;
909
910	my $path = $map->tmpname;
911	defined $path or return;
912
913	unlink "$path.pst";
914	};
915
916	cf::map->attach (prio => -10000, package => cf::mapsupport::);
917
918	#############################################################################
919		1381
920	=head2 CORE EXTENSIONS	1382	=head2 CORE EXTENSIONS
921		1383
922	Functions and methods that extend core crossfire objects.	1384	Functions and methods that extend core crossfire objects.
923		1385
…		…
929		1391
930	=head3 cf::player	1392	=head3 cf::player
931		1393
932	=over 4	1394	=over 4
933		1395
		1396	=item cf::player::num_playing
		1397
		1398	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1399
		1400	=cut
		1401
		1402	sub num_playing {
		1403	scalar grep
		1404	$_->ob->map
		1405	&& !$_->hidden
		1406	&& !$_->ob->flag (cf::FLAG_WIZ),
		1407	cf::player::list
		1408	}
		1409
934	=item cf::player::find $login	1410	=item cf::player::find $login
935		1411
936	Returns the given player object, loading it if necessary (might block).	1412	Returns the given player object, loading it if necessary (might block).
937		1413
938	=cut	1414	=cut
939		1415
940	sub playerdir($) {	1416	sub playerdir($) {
941	cf::localdir	1417	"$PLAYERDIR/"
942	. "/"
943	. cf::playerdir
944	. "/"
945	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1418	. (ref $_[0] ? $_[0]->ob->name : $_[0])
946	}	1419	}
947		1420
948	sub path($) {	1421	sub path($) {
949	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1422	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
950		1423
951	(playerdir $login) . "/$login.pl"	1424	(playerdir $login) . "/playerdata"
952	}	1425	}
953		1426
954	sub find_active($) {	1427	sub find_active($) {
955	$cf::PLAYER{$_[0]}	1428	$cf::PLAYER{$_[0]}
956	and $cf::PLAYER{$_[0]}->active	1429	and $cf::PLAYER{$_[0]}->active
…		…
959		1432
960	sub exists($) {	1433	sub exists($) {
961	my ($login) = @_;	1434	my ($login) = @_;
962		1435
963	$cf::PLAYER{$login}	1436	$cf::PLAYER{$login}
964	or cf::sync_job { !aio_stat $login }	1437	or cf::sync_job { !aio_stat path $login }
965	}	1438	}
966		1439
967	sub find($) {	1440	sub find($) {
968	return $cf::PLAYER{$_[0]} || do {	1441	return $cf::PLAYER{$_[0]} || do {
969	my $login = $_[0];	1442	my $login = $_[0];
970		1443
971	my $guard = cf::lock_acquire "user_find:$login";	1444	my $guard = cf::lock_acquire "user_find:$login";
972		1445
973	$cf::PLAYER{$_[0]} || do {	1446	$cf::PLAYER{$_[0]} || do {
974	my $pl = load_pl path $login	1447	# rename old playerfiles to new ones
		1448	#TODO: remove when no longer required
		1449	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1450	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1451	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1452	aio_unlink +(playerdir $login) . "/$login.pl";
		1453
		1454	my $f = new_from_file cf::object::thawer path $login
975	or return;	1455	or return;
		1456
		1457	my $pl = cf::player::load_pl $f
		1458	or return;
		1459	local $cf::PLAYER_LOADING{$login} = $pl;
		1460	$f->resolve_delayed_derefs;
976	$cf::PLAYER{$login} = $pl	1461	$cf::PLAYER{$login} = $pl
977	}	1462	}
978	}	1463	}
979	}	1464	}
980		1465
…		…
990		1475
991	aio_mkdir playerdir $pl, 0770;	1476	aio_mkdir playerdir $pl, 0770;
992	$pl->{last_save} = $cf::RUNTIME;	1477	$pl->{last_save} = $cf::RUNTIME;
993		1478
994	$pl->save_pl ($path);	1479	$pl->save_pl ($path);
995	Coro::cede;	1480	cf::cede_to_tick;
996	}	1481	}
997		1482
998	sub new($) {	1483	sub new($) {
999	my ($login) = @_;	1484	my ($login) = @_;
1000		1485
…		…
1006	$cf::PLAYER{$login} = $self;	1491	$cf::PLAYER{$login} = $self;
1007		1492
1008	$self	1493	$self
1009	}	1494	}
1010		1495
		1496	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1497
		1498	=cut
		1499
		1500	sub send_msg {
		1501	my $ns = shift->ns
		1502	or return;
		1503	$ns->send_msg (@_);
		1504	}
		1505
1011	=item $pl->quit_character	1506	=item $pl->quit_character
1012		1507
1013	Nukes the player without looking back. If logged in, the connection will	1508	Nukes the player without looking back. If logged in, the connection will
1014	be destroyed. May block for a long time.	1509	be destroyed. May block for a long time.
1015		1510
1016	=cut	1511	=cut
1017		1512
1018	sub quit_character {	1513	sub quit_character {
1019	my ($pl) = @_;	1514	my ($pl) = @_;
		1515
		1516	my $name = $pl->ob->name;
1020		1517
1021	$pl->{deny_save} = 1;	1518	$pl->{deny_save} = 1;
1022	$pl->password ("*"); # this should lock out the player until we nuked the dir	1519	$pl->password ("*"); # this should lock out the player until we nuked the dir
1023		1520
1024	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1521	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1029	my $path = playerdir $pl;	1526	my $path = playerdir $pl;
1030	my $temp = "$path~$cf::RUNTIME~deleting~";	1527	my $temp = "$path~$cf::RUNTIME~deleting~";
1031	aio_rename $path, $temp;	1528	aio_rename $path, $temp;
1032	delete $cf::PLAYER{$pl->ob->name};	1529	delete $cf::PLAYER{$pl->ob->name};
1033	$pl->destroy;	1530	$pl->destroy;
		1531
		1532	my $prefix = qr<^~\Q$name\E/>;
		1533
		1534	# nuke player maps
		1535	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1536
1034	IO::AIO::aio_rmtree $temp;	1537	IO::AIO::aio_rmtree $temp;
		1538	}
		1539
		1540	=item $pl->kick
		1541
		1542	Kicks a player out of the game. This destroys the connection.
		1543
		1544	=cut
		1545
		1546	sub kick {
		1547	my ($pl, $kicker) = @_;
		1548
		1549	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1550	$pl->killer ("kicked");
		1551	$pl->ns->destroy;
1035	}	1552	}
1036		1553
1037	=item cf::player::list_logins	1554	=item cf::player::list_logins
1038		1555
1039	Returns am arrayref of all valid playernames in the system, can take a	1556	Returns am arrayref of all valid playernames in the system, can take a
1040	while and may block, so not sync_job-capable, ever.	1557	while and may block, so not sync_job-capable, ever.
1041		1558
1042	=cut	1559	=cut
1043		1560
1044	sub list_logins {	1561	sub list_logins {
1045	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1562	my $dirs = aio_readdir $PLAYERDIR
1046	or return [];	1563	or return [];
1047		1564
1048	my @logins;	1565	my @logins;
1049		1566
1050	for my $login (@$dirs) {	1567	for my $login (@$dirs) {
		1568	my $path = path $login;
		1569
		1570	# a .pst is a dead give-away for a valid player
		1571	unless (-e "$path.pst") {
1051	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1572	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1052	aio_read $fh, 0, 512, my $buf, 0 or next;	1573	aio_read $fh, 0, 512, my $buf, 0 or next;
1053	$buf !~ /^password -------------$/m or next; # official not-valid tag	1574	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1575	}
1054		1576
1055	utf8::decode $login;	1577	utf8::decode $login;
1056	push @logins, $login;	1578	push @logins, $login;
1057	}	1579	}
1058		1580
…		…
1066		1588
1067	=cut	1589	=cut
1068		1590
1069	sub maps($) {	1591	sub maps($) {
1070	my ($pl) = @_;	1592	my ($pl) = @_;
		1593
		1594	$pl = ref $pl ? $pl->ob->name : $pl;
1071		1595
1072	my $files = aio_readdir playerdir $pl	1596	my $files = aio_readdir playerdir $pl
1073	or return;	1597	or return;
1074		1598
1075	my @paths;	1599	my @paths;
…		…
1077	for (@$files) {	1601	for (@$files) {
1078	utf8::decode $_;	1602	utf8::decode $_;
1079	next if /\.(?:pl|pst)$/;	1603	next if /\.(?:pl|pst)$/;
1080	next unless /^$PATH_SEP/o;	1604	next unless /^$PATH_SEP/o;
1081		1605
1082	push @paths, "~" . $pl->ob->name . "/" . $_;	1606	push @paths, cf::map::normalise "~$pl/$_";
1083	}	1607	}
1084		1608
1085	\@paths	1609	\@paths
1086	}	1610	}
1087		1611
		1612	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1613
		1614	Expand crossfire pod fragments into protocol xml.
		1615
		1616	=cut
		1617
		1618	use re 'eval';
		1619
		1620	my $group;
		1621	my $interior; $interior = qr{
		1622	# match a pod interior sequence sans C<< >>
		1623	(?:
		1624	\ (.*?)\ (?{ $group = $^N })
		1625	| < (??{$interior}) >
		1626	)
		1627	}x;
		1628
		1629	sub expand_cfpod {
		1630	my ($self, $pod) = @_;
		1631
		1632	my $xml;
		1633
		1634	while () {
		1635	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1636	$group = $1;
		1637
		1638	$group =~ s/&/&amp;/g;
		1639	$group =~ s/</&lt;/g;
		1640
		1641	$xml .= $group;
		1642	} elsif ($pod =~ m%\G
		1643	([BCGHITU])
		1644	<
		1645	(?:
		1646	([^<>]*) (?{ $group = $^N })
		1647	| < $interior >
		1648	)
		1649	>
		1650	%gcsx
		1651	) {
		1652	my ($code, $data) = ($1, $group);
		1653
		1654	if ($code eq "B") {
		1655	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1656	} elsif ($code eq "I") {
		1657	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1658	} elsif ($code eq "U") {
		1659	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1660	} elsif ($code eq "C") {
		1661	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1662	} elsif ($code eq "T") {
		1663	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1664	} elsif ($code eq "G") {
		1665	my ($male, $female) = split /\|/, $data;
		1666	$data = $self->gender ? $female : $male;
		1667	$xml .= expand_cfpod ($self, $data);
		1668	} elsif ($code eq "H") {
		1669	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1670	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1671	"")
		1672	[$self->{hintmode}];
		1673	} else {
		1674	$xml .= "error processing '$code($data)' directive";
		1675	}
		1676	} else {
		1677	if ($pod =~ /\G(.+)/) {
		1678	warn "parse error while expanding $pod (at $1)";
		1679	}
		1680	last;
		1681	}
		1682	}
		1683
		1684	for ($xml) {
		1685	# create single paragraphs (very hackish)
		1686	s/(?<=\S)\n(?=\w)/ /g;
		1687
		1688	# compress some whitespace
		1689	s/\s+\n/\n/g; # ws line-ends
		1690	s/\n\n+/\n/g; # double lines
		1691	s/^\n+//; # beginning lines
		1692	s/\n+$//; # ending lines
		1693	}
		1694
		1695	$xml
		1696	}
		1697
		1698	no re 'eval';
		1699
		1700	sub hintmode {
		1701	$_[0]{hintmode} = $_[1] if @_ > 1;
		1702	$_[0]{hintmode}
		1703	}
		1704
1088	=item $player->ext_reply ($msgid, $msgtype, %msg)	1705	=item $player->ext_reply ($msgid, @msg)
1089		1706
1090	Sends an ext reply to the player.	1707	Sends an ext reply to the player.
1091		1708
1092	=cut	1709	=cut
1093		1710
1094	sub ext_reply($$$%) {	1711	sub ext_reply($$@) {
1095	my ($self, $id, %msg) = @_;	1712	my ($self, $id, @msg) = @_;
1096		1713
1097	$msg{msgid} = $id;	1714	$self->ns->ext_reply ($id, @msg)
1098
1099	$self->send ("ext " . cf::to_json \%msg);
1100	}	1715	}
1101		1716
1102	package cf;	1717	=item $player->ext_msg ($type, @msg)
		1718
		1719	Sends an ext event to the client.
		1720
		1721	=cut
		1722
		1723	sub ext_msg($$@) {
		1724	my ($self, $type, @msg) = @_;
		1725
		1726	$self->ns->ext_msg ($type, @msg);
		1727	}
		1728
		1729	=head3 cf::region
		1730
		1731	=over 4
		1732
		1733	=cut
		1734
		1735	package cf::region;
		1736
		1737	=item cf::region::find_by_path $path
		1738
		1739	Tries to decuce the likely region for a map knowing only its path.
		1740
		1741	=cut
		1742
		1743	sub find_by_path($) {
		1744	my ($path) = @_;
		1745
		1746	my ($match, $specificity);
		1747
		1748	for my $region (list) {
		1749	if ($region->{match} && $path =~ $region->{match}) {
		1750	($match, $specificity) = ($region, $region->specificity)
		1751	if $region->specificity > $specificity;
		1752	}
		1753	}
		1754
		1755	$match
		1756	}
1103		1757
1104	=back	1758	=back
1105
1106		1759
1107	=head3 cf::map	1760	=head3 cf::map
1108		1761
1109	=over 4	1762	=over 4
1110		1763
…		…
1114		1767
1115	use Fcntl;	1768	use Fcntl;
1116	use Coro::AIO;	1769	use Coro::AIO;
1117		1770
1118	use overload	1771	use overload
1119	'""' => \&as_string;	1772	'""' => \&as_string,
		1773	fallback => 1;
1120		1774
1121	our $MAX_RESET = 3600;	1775	our $MAX_RESET = 3600;
1122	our $DEFAULT_RESET = 3000;	1776	our $DEFAULT_RESET = 3000;
1123		1777
1124	sub generate_random_map {	1778	sub generate_random_map {
1125	my ($self, $rmp) = @_;	1779	my ($self, $rmp) = @_;
		1780
		1781	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
1126		1782
1127	# mit "rum" bekleckern, nicht	1783	# mit "rum" bekleckern, nicht
1128	$self->_create_random_map (	1784	$self->_create_random_map (
1129	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1785	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1130	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1786	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
…		…
1138	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1794	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1139	(cf::region::find $rmp->{region}), $rmp->{custom}	1795	(cf::region::find $rmp->{region}), $rmp->{custom}
1140	)	1796	)
1141	}	1797	}
1142		1798
		1799	=item cf::map->register ($regex, $prio)
		1800
		1801	Register a handler for the map path matching the given regex at the
		1802	givne priority (higher is better, built-in handlers have priority 0, the
		1803	default).
		1804
		1805	=cut
		1806
1143	sub register {	1807	sub register {
1144	my (undef, $regex) = @_;	1808	my (undef, $regex, $prio) = @_;
1145	my $pkg = caller;	1809	my $pkg = caller;
1146		1810
1147	no strict;	1811	no strict;
1148	push @{"$pkg\::ISA"}, __PACKAGE__;	1812	push @{"$pkg\::ISA"}, __PACKAGE__;
1149		1813
1150	$EXT_MAP{$pkg} = qr<$regex>;	1814	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1151	}	1815	}
1152		1816
1153	# also paths starting with '/'	1817	# also paths starting with '/'
1154	$EXT_MAP{"cf::map"} = qr{^(?=/)};	1818	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1819
		1820	sub thawer_merge {
		1821	my ($self, $merge) = @_;
		1822
		1823	# we have to keep some variables in memory intact
		1824	local $self->{path};
		1825	local $self->{load_path};
		1826
		1827	$self->SUPER::thawer_merge ($merge);
		1828	}
1155		1829
1156	sub normalise {	1830	sub normalise {
1157	my ($path, $base) = @_;	1831	my ($path, $base) = @_;
		1832
		1833	$path = "$path"; # make sure its a string
		1834
		1835	$path =~ s/\.map$//;
1158		1836
1159	# map plan:	1837	# map plan:
1160	#	1838	#
1161	# /! non-realised random map exit (special hack!)	1839	# /! non-realised random map exit (special hack!)
1162	# {... are special paths that are not being touched	1840	# {... are special paths that are not being touched
…		…
1190		1868
1191	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	1869	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1192		1870
1193	$path = normalise $path, $base;	1871	$path = normalise $path, $base;
1194		1872
1195	for my $pkg (keys %EXT_MAP) {	1873	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1196	if ($path =~ $EXT_MAP{$pkg}) {	1874	if ($path =~ $EXT_MAP{$pkg}[1]) {
1197	my $self = bless cf::map::new, $pkg;	1875	my $self = bless cf::map::new, $pkg;
1198	$self->{path} = $path; $self->path ($path);	1876	$self->{path} = $path; $self->path ($path);
1199	$self->init; # pass $1 etc.	1877	$self->init; # pass $1 etc.
1200	return $self;	1878	return $self;
1201	}	1879	}
1202	}	1880	}
1203		1881
1204	Carp::carp "unable to resolve path '$path'.";	1882	Carp::cluck "unable to resolve path '$path' (base '$base').";
1205	()	1883	()
1206	}	1884	}
1207		1885
1208	sub init {	1886	sub init {
1209	my ($self) = @_;	1887	my ($self) = @_;
…		…
1220	# the displayed name, this is a one way mapping	1898	# the displayed name, this is a one way mapping
1221	sub visible_name {	1899	sub visible_name {
1222	&as_string	1900	&as_string
1223	}	1901	}
1224		1902
1225	# escape the /'s in the path
1226	sub _escaped_path {
1227	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1228
1229	$path
1230	}
1231
1232	# the original (read-only) location	1903	# the original (read-only) location
1233	sub load_path {	1904	sub load_path {
1234	my ($self) = @_;	1905	my ($self) = @_;
1235		1906
1236	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1907	"$MAPDIR/$self->{path}.map"
1237	}	1908	}
1238		1909
1239	# the temporary/swap location	1910	# the temporary/swap location
1240	sub save_path {	1911	sub save_path {
1241	my ($self) = @_;	1912	my ($self) = @_;
1242		1913
1243	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $self->_escaped_path	1914	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1915	"$TMPDIR/$path.map"
1244	}	1916	}
1245		1917
1246	# the unique path, undef == no special unique path	1918	# the unique path, undef == no special unique path
1247	sub uniq_path {	1919	sub uniq_path {
1248	my ($self) = @_;	1920	my ($self) = @_;
1249		1921
1250	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path	1922	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
		1923	"$UNIQUEDIR/$path"
1251	}	1924	}
1252		1925
1253	# and all this just because we cannot iterate over	1926	# and all this just because we cannot iterate over
1254	# all maps in C++...	1927	# all maps in C++...
1255	sub change_all_map_light {	1928	sub change_all_map_light {
…		…
1257		1930
1258	$_->change_map_light ($change)	1931	$_->change_map_light ($change)
1259	for grep $_->outdoor, values %cf::MAP;	1932	for grep $_->outdoor, values %cf::MAP;
1260	}	1933	}
1261		1934
		1935	sub decay_objects {
		1936	my ($self) = @_;
		1937
		1938	return if $self->{deny_reset};
		1939
		1940	$self->do_decay_objects;
		1941	}
		1942
1262	sub unlink_save {	1943	sub unlink_save {
1263	my ($self) = @_;	1944	my ($self) = @_;
1264		1945
1265	utf8::encode (my $save = $self->save_path);	1946	utf8::encode (my $save = $self->save_path);
1266	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;	1947	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1267	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";	1948	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1268	}	1949	}
1269		1950
1270	sub load_header_from($) {	1951	sub load_header_from($) {
1271	my ($self, $path) = @_;	1952	my ($self, $path) = @_;
1272		1953
1273	utf8::encode $path;	1954	utf8::encode $path;
1274	aio_open $path, O_RDONLY, 0	1955	my $f = new_from_file cf::object::thawer $path
1275	or return;	1956	or return;
1276		1957
1277	$self->_load_header ($path)	1958	$self->_load_header ($f)
1278	or return;	1959	or return;
1279		1960
		1961	local $MAP_LOADING{$self->{path}} = $self;
		1962	$f->resolve_delayed_derefs;
		1963
1280	$self->{load_path} = $path;	1964	$self->{load_path} = $path;
1281		1965
1282	1	1966	1
1283	}	1967	}
1284		1968
1285	sub load_orig {	1969	sub load_header_orig {
1286	my ($self) = @_;	1970	my ($self) = @_;
1287		1971
1288	$self->load_header_from ($self->load_path)	1972	$self->load_header_from ($self->load_path)
1289	}	1973	}
1290		1974
1291	sub load_temp {	1975	sub load_header_temp {
1292	my ($self) = @_;	1976	my ($self) = @_;
1293		1977
1294	$self->load_header_from ($self->save_path)	1978	$self->load_header_from ($self->save_path)
		1979	}
		1980
		1981	sub prepare_temp {
		1982	my ($self) = @_;
		1983
		1984	$self->last_access ((delete $self->{last_access})
		1985	|| $cf::RUNTIME); #d#
		1986	# safety
		1987	$self->{instantiate_time} = $cf::RUNTIME
		1988	if $self->{instantiate_time} > $cf::RUNTIME;
		1989	}
		1990
		1991	sub prepare_orig {
		1992	my ($self) = @_;
		1993
		1994	$self->{load_original} = 1;
		1995	$self->{instantiate_time} = $cf::RUNTIME;
		1996	$self->last_access ($cf::RUNTIME);
		1997	$self->instantiate;
1295	}	1998	}
1296		1999
1297	sub load_header {	2000	sub load_header {
1298	my ($self) = @_;	2001	my ($self) = @_;
1299		2002
1300	if ($self->load_temp) {	2003	if ($self->load_header_temp) {
1301	$self->last_access ((delete $self->{last_access})	2004	$self->prepare_temp;
1302	|| $cf::RUNTIME); #d#
1303	# safety
1304	$self->{instantiate_time} = $cf::RUNTIME
1305	if $self->{instantiate_time} > $cf::RUNTIME;
1306	} else {	2005	} else {
1307	$self->load_orig	2006	$self->load_header_orig
1308	or return;	2007	or return;
1309		2008	$self->prepare_orig;
1310	$self->{load_original} = 1;
1311	$self->{instantiate_time} = $cf::RUNTIME;
1312	$self->last_access ($cf::RUNTIME);
1313	$self->instantiate;
1314	}	2009	}
		2010
		2011	$self->{deny_reset} = 1
		2012	if $self->no_reset;
		2013
		2014	$self->default_region (cf::region::find_by_path $self->{path})
		2015	unless $self->default_region;
1315		2016
1316	1	2017	1
1317	}	2018	}
1318		2019
1319	sub find;	2020	sub find;
1320	sub find {	2021	sub find {
1321	my ($path, $origin) = @_;	2022	my ($path, $origin) = @_;
1322		2023
1323	$path = normalise $path, $origin && $origin->path;	2024	$path = normalise $path, $origin && $origin->path;
1324		2025
		2026	cf::lock_wait "map_data:$path";#d#remove
1325	cf::lock_wait "map_find:$path";	2027	cf::lock_wait "map_find:$path";
1326		2028
1327	$cf::MAP{$path} || do {	2029	$cf::MAP{$path} || do {
1328	my $guard = cf::lock_acquire "map_find:$path";	2030	my $guard1 = cf::lock_acquire "map_find:$path";
		2031	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
		2032
1329	my $map = new_from_path cf::map $path	2033	my $map = new_from_path cf::map $path
1330	or return;	2034	or return;
1331		2035
1332	$map->{last_save} = $cf::RUNTIME;	2036	$map->{last_save} = $cf::RUNTIME;
1333		2037
1334	$map->load_header	2038	$map->load_header
1335	or return;	2039	or return;
1336		2040
1337	if ($map->should_reset) {	2041	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		2042	# doing this can freeze the server in a sync job, obviously
		2043	#$cf::WAIT_FOR_TICK->wait;
		2044	undef $guard1;
		2045	undef $guard2;
1338	$map->reset;	2046	$map->reset;
1339	undef $guard;
1340	$map = find $path	2047	return find $path;
1341	or return;
1342	}	2048	}
1343		2049
1344	$cf::MAP{$path} = $map	2050	$cf::MAP{$path} = $map
1345	}	2051	}
1346	}	2052	}
		2053
		2054	sub pre_load { }
		2055	sub post_load { }
1347		2056
1348	sub load {	2057	sub load {
1349	my ($self) = @_;	2058	my ($self) = @_;
1350		2059
		2060	local $self->{deny_reset} = 1; # loading can take a long time
		2061
1351	my $path = $self->{path};	2062	my $path = $self->{path};
		2063
		2064	{
1352	my $guard = cf::lock_acquire "map_load:$path";	2065	my $guard = cf::lock_acquire "map_data:$path";
1353		2066
		2067	return unless $self->valid;
1354	return if $self->in_memory != cf::MAP_SWAPPED;	2068	return unless $self->in_memory == cf::MAP_SWAPPED;
1355		2069
1356	$self->in_memory (cf::MAP_LOADING);	2070	$self->in_memory (cf::MAP_LOADING);
1357		2071
1358	$self->alloc;	2072	$self->alloc;
1359	$self->_load_objects ($self->{load_path}, 1)	2073
		2074	$self->pre_load;
		2075	cf::cede_to_tick;
		2076
		2077	my $f = new_from_file cf::object::thawer $self->{load_path};
		2078	$f->skip_block;
		2079	$self->_load_objects ($f)
1360	or return;	2080	or return;
1361		2081
1362	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2082	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1363	if delete $self->{load_original};	2083	if delete $self->{load_original};
1364		2084
1365	if (my $uniq = $self->uniq_path) {	2085	if (my $uniq = $self->uniq_path) {
1366	utf8::encode $uniq;	2086	utf8::encode $uniq;
1367	if (aio_open $uniq, O_RDONLY, 0) {	2087	unless (aio_stat $uniq) {
		2088	if (my $f = new_from_file cf::object::thawer $uniq) {
1368	$self->clear_unique_items;	2089	$self->clear_unique_items;
1369	$self->_load_objects ($uniq, 0);	2090	$self->_load_objects ($f);
		2091	$f->resolve_delayed_derefs;
		2092	}
1370	}	2093	}
1371	}	2094	}
1372		2095
1373	Coro::cede;	2096	$f->resolve_delayed_derefs;
1374		2097
		2098	cf::cede_to_tick;
1375	# now do the right thing for maps	2099	# now do the right thing for maps
1376	$self->link_multipart_objects;	2100	$self->link_multipart_objects;
1377
1378	unless ($self->{deny_activate}) {
1379	$self->decay_objects;
1380	$self->fix_auto_apply;
1381	$self->update_buttons;
1382	Coro::cede;
1383	$self->set_darkness_map;
1384	$self->difficulty ($self->estimate_difficulty)	2101	$self->difficulty ($self->estimate_difficulty)
1385	unless $self->difficulty;	2102	unless $self->difficulty;
1386	Coro::cede;	2103	cf::cede_to_tick;
		2104
		2105	unless ($self->{deny_activate}) {
		2106	$self->decay_objects;
		2107	$self->fix_auto_apply;
		2108	$self->update_buttons;
		2109	cf::cede_to_tick;
		2110	$self->set_darkness_map;
		2111	cf::cede_to_tick;
1387	$self->activate;	2112	$self->activate;
1388	}	2113	}
1389		2114
		2115	$self->{last_save} = $cf::RUNTIME;
		2116	$self->last_access ($cf::RUNTIME);
		2117
1390	$self->in_memory (cf::MAP_IN_MEMORY);	2118	$self->in_memory (cf::MAP_IN_MEMORY);
		2119	}
		2120
		2121	$self->post_load;
1391	}	2122	}
1392		2123
1393	sub customise_for {	2124	sub customise_for {
1394	my ($self, $ob) = @_;	2125	my ($self, $ob) = @_;
1395		2126
1396	return find "~" . $ob->name . "/" . $self->{path}	2127	return find "~" . $ob->name . "/" . $self->{path}
1397	if $self->per_player;	2128	if $self->per_player;
1398		2129
		2130	# return find "?party/" . $ob->name . "/" . $self->{path}
		2131	# if $self->per_party;
		2132
1399	$self	2133	$self
1400	}	2134	}
1401		2135
1402	# find and load all maps in the 3x3 area around a map	2136	# find and load all maps in the 3x3 area around a map
1403	sub load_diag {	2137	sub load_neighbours {
1404	my ($map) = @_;	2138	my ($map) = @_;
1405		2139
1406	my @diag; # diagonal neighbours	2140	my @neigh; # diagonal neighbours
1407		2141
1408	for (0 .. 3) {	2142	for (0 .. 3) {
1409	my $neigh = $map->tile_path ($_)	2143	my $neigh = $map->tile_path ($_)
1410	or next;	2144	or next;
1411	$neigh = find $neigh, $map	2145	$neigh = find $neigh, $map
1412	or next;	2146	or next;
1413	$neigh->load;	2147	$neigh->load;
1414		2148
		2149	push @neigh,
1415	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2150	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1416	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2151	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1417	}	2152	}
1418		2153
1419	for (@diag) {	2154	for (grep defined $_->[0], @neigh) {
		2155	my ($path, $origin) = @$_;
1420	my $neigh = find @$_	2156	my $neigh = find $path, $origin
1421	or next;	2157	or next;
1422	$neigh->load;	2158	$neigh->load;
1423	}	2159	}
1424	}	2160	}
1425		2161
…		…
1430	}	2166	}
1431		2167
1432	sub do_load_sync {	2168	sub do_load_sync {
1433	my ($map) = @_;	2169	my ($map) = @_;
1434		2170
		2171	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2172	if $Coro::current == $Coro::main;
		2173
1435	cf::sync_job { $map->load };	2174	cf::sync_job { $map->load };
1436	}	2175	}
1437		2176
1438	our %MAP_PREFETCH;	2177	our %MAP_PREFETCH;
1439	our $MAP_PREFETCHER = Coro::async {	2178	our $MAP_PREFETCHER = undef;
1440	while () {
1441	for my $path (keys %MAP_PREFETCH) {
1442	my $map = find $path
1443	or next;
1444	$map->load;
1445
1446	delete $MAP_PREFETCH{$path};
1447	}
1448	Coro::schedule;
1449	}
1450	};
1451		2179
1452	sub find_async {	2180	sub find_async {
1453	my ($path, $origin) = @_;	2181	my ($path, $origin, $load) = @_;
1454		2182
1455	$path = normalise $path, $origin && $origin->{path};	2183	$path = normalise $path, $origin && $origin->{path};
1456		2184
1457	if (my $map = $cf::MAP{$path}) {	2185	if (my $map = $cf::MAP{$path}) {
1458	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2186	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2187	}
		2188
		2189	$MAP_PREFETCH{$path} |= $load;
		2190
		2191	$MAP_PREFETCHER ||= cf::async {
		2192	$Coro::current->{desc} = "map prefetcher";
		2193
		2194	while (%MAP_PREFETCH) {
		2195	while (my ($k, $v) = each %MAP_PREFETCH) {
		2196	if (my $map = find $k) {
		2197	$map->load if $v;
		2198	}
		2199
		2200	delete $MAP_PREFETCH{$k};
		2201	}
		2202	}
		2203	undef $MAP_PREFETCHER;
1459	}	2204	};
1460
1461	$MAP_PREFETCH{$path} = 0;
1462	$MAP_PREFETCHER->ready;	2205	$MAP_PREFETCHER->prio (6);
1463		2206
1464	()	2207	()
1465	}	2208	}
1466		2209
1467	sub save {	2210	sub save {
1468	my ($self) = @_;	2211	my ($self) = @_;
1469		2212
1470	my $lock = cf::lock_acquire "map_data:" . $self->path;	2213	my $lock = cf::lock_acquire "map_data:$self->{path}";
1471		2214
1472	$self->{last_save} = $cf::RUNTIME;	2215	$self->{last_save} = $cf::RUNTIME;
1473		2216
1474	return unless $self->dirty;	2217	return unless $self->dirty;
1475		2218
…		…
1481	return if $self->{deny_save};	2224	return if $self->{deny_save};
1482		2225
1483	local $self->{last_access} = $self->last_access;#d#	2226	local $self->{last_access} = $self->last_access;#d#
1484		2227
1485	cf::async {	2228	cf::async {
		2229	$Coro::current->{desc} = "map player save";
1486	$_->contr->save for $self->players;	2230	$_->contr->save for $self->players;
1487	};	2231	};
1488		2232
1489	if ($uniq) {	2233	if ($uniq) {
1490	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2234	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
…		…
1498	my ($self) = @_;	2242	my ($self) = @_;
1499		2243
1500	# save first because save cedes	2244	# save first because save cedes
1501	$self->save;	2245	$self->save;
1502		2246
1503	my $lock = cf::lock_acquire "map_data:" . $self->path;	2247	my $lock = cf::lock_acquire "map_data:$self->{path}";
1504		2248
1505	return if $self->players;	2249	return if $self->players;
1506	return if $self->in_memory != cf::MAP_IN_MEMORY;	2250	return if $self->in_memory != cf::MAP_IN_MEMORY;
1507	return if $self->{deny_save};	2251	return if $self->{deny_save};
1508		2252
		2253	$self->in_memory (cf::MAP_SWAPPED);
		2254
		2255	$self->deactivate;
		2256	$_->clear_links_to ($self) for values %cf::MAP;
1509	$self->clear;	2257	$self->clear;
1510	$self->in_memory (cf::MAP_SWAPPED);
1511	}	2258	}
1512		2259
1513	sub reset_at {	2260	sub reset_at {
1514	my ($self) = @_;	2261	my ($self) = @_;
1515		2262
1516	# TODO: safety, remove and allow resettable per-player maps	2263	# TODO: safety, remove and allow resettable per-player maps
1517	return 1e99 if $self->isa ("ext::map_per_player");
1518	return 1e99 if $self->{deny_reset};	2264	return 1e99 if $self->{deny_reset};
1519		2265
1520	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2266	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1521	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2267	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1522		2268
…		…
1527	my ($self) = @_;	2273	my ($self) = @_;
1528		2274
1529	$self->reset_at <= $cf::RUNTIME	2275	$self->reset_at <= $cf::RUNTIME
1530	}	2276	}
1531		2277
1532	sub rename {
1533	my ($self, $new_path) = @_;
1534
1535	normalise $new_path;
1536
1537	$self->unlink_save;
1538
1539	delete $cf::MAP{$self->path};
1540	$self->{path} = $new_path; $self->path ($self->{path});
1541	$cf::MAP{$self->path} = $self;
1542
1543	$self->save;
1544	}
1545
1546	sub reset {	2278	sub reset {
1547	my ($self) = @_;	2279	my ($self) = @_;
1548		2280
1549	my $lock = cf::lock_acquire "map_data:" . $self->path;	2281	my $lock = cf::lock_acquire "map_data:$self->{path}";
1550		2282
1551	return if $self->players;	2283	return if $self->players;
1552	return if $self->isa ("ext::map_per_player");#d#
1553		2284
1554	warn "resetting map ", $self->path;#d#	2285	warn "resetting map ", $self->path;
		2286
		2287	$self->in_memory (cf::MAP_SWAPPED);
		2288
		2289	# need to save uniques path
		2290	unless ($self->{deny_save}) {
		2291	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2292
		2293	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2294	if $uniq;
		2295	}
1555		2296
1556	delete $cf::MAP{$self->path};	2297	delete $cf::MAP{$self->path};
1557		2298
		2299	$self->deactivate;
1558	$_->clear_links_to ($self) for values %cf::MAP;	2300	$_->clear_links_to ($self) for values %cf::MAP;
		2301	$self->clear;
1559		2302
1560	$self->unlink_save;	2303	$self->unlink_save;
1561	$self->destroy;	2304	$self->destroy;
1562	}	2305	}
1563		2306
1564	my $nuke_counter = "aaaa";	2307	my $nuke_counter = "aaaa";
1565		2308
1566	sub nuke {	2309	sub nuke {
1567	my ($self) = @_;	2310	my ($self) = @_;
1568		2311
		2312	{
		2313	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2314
		2315	delete $cf::MAP{$self->path};
		2316
		2317	$self->unlink_save;
		2318
		2319	bless $self, "cf::map";
		2320	delete $self->{deny_reset};
1569	$self->{deny_save} = 1;	2321	$self->{deny_save} = 1;
1570	$self->reset_timeout (1);	2322	$self->reset_timeout (1);
1571	$self->rename ("{nuke}/" . ($nuke_counter++));	2323	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2324
		2325	$cf::MAP{$self->path} = $self;
		2326	}
		2327
1572	$self->reset; # polite request, might not happen	2328	$self->reset; # polite request, might not happen
		2329	}
		2330
		2331	=item $maps = cf::map::tmp_maps
		2332
		2333	Returns an arrayref with all map paths of currently instantiated and saved
		2334	maps. May block.
		2335
		2336	=cut
		2337
		2338	sub tmp_maps() {
		2339	[
		2340	map {
		2341	utf8::decode $_;
		2342	/\.map$/
		2343	? normalise $_
		2344	: ()
		2345	} @{ aio_readdir $TMPDIR or [] }
		2346	]
		2347	}
		2348
		2349	=item $maps = cf::map::random_maps
		2350
		2351	Returns an arrayref with all map paths of currently instantiated and saved
		2352	random maps. May block.
		2353
		2354	=cut
		2355
		2356	sub random_maps() {
		2357	[
		2358	map {
		2359	utf8::decode $_;
		2360	/\.map$/
		2361	? normalise "?random/$_"
		2362	: ()
		2363	} @{ aio_readdir $RANDOMDIR or [] }
		2364	]
1573	}	2365	}
1574		2366
1575	=item cf::map::unique_maps	2367	=item cf::map::unique_maps
1576		2368
1577	Returns an arrayref of paths of all shared maps that have	2369	Returns an arrayref of paths of all shared maps that have
1578	instantiated unique items. May block.	2370	instantiated unique items. May block.
1579		2371
1580	=cut	2372	=cut
1581		2373
1582	sub unique_maps() {	2374	sub unique_maps() {
1583	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2375	[
1584	or return;	2376	map {
1585
1586	my @paths;
1587
1588	for (@$files) {
1589	utf8::decode $_;	2377	utf8::decode $_;
1590	next if /\.pst$/;	2378	s/\.map$//; # TODO future compatibility hack
1591	next unless /^$PATH_SEP/o;	2379	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1592		2380	? ()
1593	push @paths, $_;	2381	: normalise $_
		2382	} @{ aio_readdir $UNIQUEDIR or [] }
1594	}	2383	]
1595
1596	\@paths
1597	}	2384	}
1598
1599	package cf;
1600		2385
1601	=back	2386	=back
1602		2387
1603	=head3 cf::object	2388	=head3 cf::object
1604		2389
…		…
1608		2393
1609	=over 4	2394	=over 4
1610		2395
1611	=item $ob->inv_recursive	2396	=item $ob->inv_recursive
1612		2397
1613	Returns the inventory of the object _and_ their inventories, recursively.	2398	Returns the inventory of the object I<and> their inventories, recursively,
		2399	but I<not> the object itself.
1614		2400
1615	=cut	2401	=cut
1616		2402
1617	sub inv_recursive_;	2403	sub inv_recursive_;
1618	sub inv_recursive_ {	2404	sub inv_recursive_ {
1619	map { $_, inv_recursive_ $_->inv } @_	2405	map { $_, inv_recursive_ $_->inv } @_
1620	}	2406	}
1621		2407
1622	sub inv_recursive {	2408	sub inv_recursive {
1623	inv_recursive_ inv $_[0]	2409	inv_recursive_ inv $_[0]
		2410	}
		2411
		2412	=item $ref = $ob->ref
		2413
		2414	Creates and returns a persistent reference to an object that can be stored as a string.
		2415
		2416	=item $ob = cf::object::deref ($refstring)
		2417
		2418	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2419	even if the object actually exists. May block.
		2420
		2421	=cut
		2422
		2423	sub deref {
		2424	my ($ref) = @_;
		2425
		2426	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2427	my ($uuid, $name) = ($1, $2);
		2428	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2429	or return;
		2430	$pl->ob->uuid eq $uuid
		2431	or return;
		2432
		2433	$pl->ob
		2434	} else {
		2435	warn "$ref: cannot resolve object reference\n";
		2436	undef
		2437	}
1624	}	2438	}
1625		2439
1626	package cf;	2440	package cf;
1627		2441
1628	=back	2442	=back
…		…
1647		2461
1648	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2462	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1649		2463
1650	if ($self->{record_replies}) {	2464	if ($self->{record_replies}) {
1651	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2465	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2466
1652	} else {	2467	} else {
		2468	my $pl = $self->contr;
		2469
		2470	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2471	my $dialog = $pl->{npc_dialog};
		2472	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2473
		2474	} else {
1653	$msg = $npc->name . " says: $msg" if $npc;	2475	$msg = $npc->name . " says: $msg" if $npc;
1654	$self->message ($msg, $flags);	2476	$self->message ($msg, $flags);
		2477	}
1655	}	2478	}
		2479	}
		2480
		2481	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2482
		2483	=cut
		2484
		2485	sub cf::object::send_msg {
		2486	my $pl = shift->contr
		2487	or return;
		2488	$pl->send_msg (@_);
1656	}	2489	}
1657		2490
1658	=item $player_object->may ("access")	2491	=item $player_object->may ("access")
1659		2492
1660	Returns wether the given player is authorized to access resource "access"	2493	Returns wether the given player is authorized to access resource "access"
…		…
1692	=cut	2525	=cut
1693		2526
1694	sub link_map {	2527	sub link_map {
1695	unless ($LINK_MAP) {	2528	unless ($LINK_MAP) {
1696	$LINK_MAP = cf::map::find "{link}"	2529	$LINK_MAP = cf::map::find "{link}"
1697	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2530	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1698	$LINK_MAP->load;	2531	$LINK_MAP->load;
1699	}	2532	}
1700		2533
1701	$LINK_MAP	2534	$LINK_MAP
1702	}	2535	}
…		…
1707	$self->deactivate_recursive;	2540	$self->deactivate_recursive;
1708		2541
1709	return if UNIVERSAL::isa $self->map, "ext::map_link";	2542	return if UNIVERSAL::isa $self->map, "ext::map_link";
1710		2543
1711	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2544	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1712	if $self->map;	2545	if $self->map && $self->map->{path} ne "{link}";
1713		2546
1714	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2547	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1715	}	2548	}
1716		2549
1717	sub cf::object::player::leave_link {	2550	sub cf::object::player::leave_link {
1718	my ($self, $map, $x, $y) = @_;	2551	my ($self, $map, $x, $y) = @_;
		2552
		2553	return unless $self->contr->active;
1719		2554
1720	my $link_pos = delete $self->{_link_pos};	2555	my $link_pos = delete $self->{_link_pos};
1721		2556
1722	unless ($map) {	2557	unless ($map) {
1723	# restore original map position	2558	# restore original map position
…		…
1737	# use -1 or undef as default coordinates, not 0, 0	2572	# use -1 or undef as default coordinates, not 0, 0
1738	($x, $y) = ($map->enter_x, $map->enter_y)	2573	($x, $y) = ($map->enter_x, $map->enter_y)
1739	if $x <=0 && $y <= 0;	2574	if $x <=0 && $y <= 0;
1740		2575
1741	$map->load;	2576	$map->load;
1742	$map->load_diag;	2577	$map->load_neighbours;
1743		2578
1744	return unless $self->contr->active;	2579	return unless $self->contr->active;
1745	$self->activate_recursive;	2580	$self->activate_recursive;
		2581
		2582	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1746	$self->enter_map ($map, $x, $y);	2583	$self->enter_map ($map, $x, $y);
1747	}	2584	}
1748		2585
1749	cf::player->attach (	2586	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1750	on_logout => sub {
1751	my ($pl) = @_;
1752		2587
1753	# abort map switching before logout	2588	Moves the player to the given map-path and coordinates by first freezing
1754	if ($pl->ob->{_link_pos}) {	2589	her, loading and preparing them map, calling the provided $check callback
1755	cf::sync_job {	2590	that has to return the map if sucecssful, and then unfreezes the player on
1756	$pl->ob->leave_link	2591	the new (success) or old (failed) map position. In either case, $done will
1757	};	2592	be called at the end of this process.
1758	}
1759	},
1760	on_login => sub {
1761	my ($pl) = @_;
1762		2593
1763	# try to abort aborted map switching on player login :)
1764	# should happen only on crashes
1765	if ($pl->ob->{_link_pos}) {
1766	$pl->ob->enter_link;
1767	(async {
1768	# we need this sleep as the login has a concurrent enter_exit running
1769	# and this sleep increases chances of the player not ending up in scorn
1770	$pl->ob->reply (undef,
1771	"There was an internal problem at your last logout, "
1772	. "the server will try to bring you to your intended destination in a second.",
1773	cf::NDI_RED);
1774	Coro::Timer::sleep 1;
1775	$pl->ob->leave_link;
1776	})->prio (2);
1777	}
1778	},
1779	);
1780
1781	=item $player_object->goto ($path, $x, $y)
1782
1783	=cut	2594	=cut
		2595
		2596	our $GOTOGEN;
1784		2597
1785	sub cf::object::player::goto {	2598	sub cf::object::player::goto {
1786	my ($self, $path, $x, $y) = @_;	2599	my ($self, $path, $x, $y, $check, $done) = @_;
		2600
		2601	# do generation counting so two concurrent goto's will be executed in-order
		2602	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1787		2603
1788	$self->enter_link;	2604	$self->enter_link;
1789		2605
1790	(async {	2606	(async {
1791	my $map = cf::map::find $path;	2607	$Coro::current->{desc} = "player::goto $path $x $y";
		2608
		2609	# *tag paths override both path and x|y
		2610	if ($path =~ /^\*(.*)$/) {
		2611	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2612	my $ob = $obs[rand @obs];
		2613
		2614	# see if we actually can go there
		2615	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2616	$ob = $obs[rand @obs];
		2617	} else {
		2618	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2619	}
		2620	# else put us there anyways for now #d#
		2621
		2622	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2623	} else {
		2624	($path, $x, $y) = (undef, undef, undef);
		2625	}
		2626	}
		2627
		2628	my $map = eval {
		2629	my $map = defined $path ? cf::map::find $path : undef;
		2630
		2631	if ($map) {
1792	$map = $map->customise_for ($self) if $map;	2632	$map = $map->customise_for ($self);
1793		2633	$map = $check->($map) if $check && $map;
1794	# warn "entering ", $map->path, " at ($x, $y)\n"	2634	} else {
1795	# if $map;
1796
1797	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2635	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2636	}
1798		2637
		2638	$map
		2639	};
		2640
		2641	if ($@) {
		2642	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2643	LOG llevError | logBacktrace, Carp::longmess $@;
		2644	}
		2645
		2646	if ($gen == $self->{_goto_generation}) {
		2647	delete $self->{_goto_generation};
1799	$self->leave_link ($map, $x, $y);	2648	$self->leave_link ($map, $x, $y);
		2649	}
		2650
		2651	$done->() if $done;
1800	})->prio (1);	2652	})->prio (1);
1801	}	2653	}
1802		2654
1803	=item $player_object->enter_exit ($exit_object)	2655	=item $player_object->enter_exit ($exit_object)
1804		2656
…		…
1806		2658
1807	sub parse_random_map_params {	2659	sub parse_random_map_params {
1808	my ($spec) = @_;	2660	my ($spec) = @_;
1809		2661
1810	my $rmp = { # defaults	2662	my $rmp = { # defaults
1811	xsize => 10,	2663	xsize => (cf::rndm 15, 40),
1812	ysize => 10,	2664	ysize => (cf::rndm 15, 40),
		2665	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2666	#layout => string,
1813	};	2667	};
1814		2668
1815	for (split /\n/, $spec) {	2669	for (split /\n/, $spec) {
1816	my ($k, $v) = split /\s+/, $_, 2;	2670	my ($k, $v) = split /\s+/, $_, 2;
1817		2671
…		…
1821	$rmp	2675	$rmp
1822	}	2676	}
1823		2677
1824	sub prepare_random_map {	2678	sub prepare_random_map {
1825	my ($exit) = @_;	2679	my ($exit) = @_;
		2680
		2681	my $guard = cf::lock_acquire "exit_prepare:$exit";
1826		2682
1827	# all this does is basically replace the /! path by	2683	# all this does is basically replace the /! path by
1828	# a new random map path (?random/...) with a seed	2684	# a new random map path (?random/...) with a seed
1829	# that depends on the exit object	2685	# that depends on the exit object
1830		2686
1831	my $rmp = parse_random_map_params $exit->msg;	2687	my $rmp = parse_random_map_params $exit->msg;
1832		2688
1833	if ($exit->map) {	2689	if ($exit->map) {
1834	$rmp->{region} = $exit->map->region_name;	2690	$rmp->{region} = $exit->region->name;
1835	$rmp->{origin_map} = $exit->map->path;	2691	$rmp->{origin_map} = $exit->map->path;
1836	$rmp->{origin_x} = $exit->x;	2692	$rmp->{origin_x} = $exit->x;
1837	$rmp->{origin_y} = $exit->y;	2693	$rmp->{origin_y} = $exit->y;
1838	}	2694	}
1839		2695
1840	$rmp->{random_seed} ||= $exit->random_seed;	2696	$rmp->{random_seed} ||= $exit->random_seed;
1841		2697
1842	my $data = cf::to_json $rmp;	2698	my $data = cf::encode_json $rmp;
1843	my $md5 = Digest::MD5::md5_hex $data;	2699	my $md5 = Digest::MD5::md5_hex $data;
		2700	my $meta = "$RANDOMDIR/$md5.meta";
1844		2701
1845	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2702	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1846	aio_write $fh, 0, (length $data), $data, 0;	2703	aio_write $fh, 0, (length $data), $data, 0;
		2704	undef $fh;
		2705	aio_rename "$meta~", $meta;
1847		2706
1848	$exit->slaying ("?random/$md5");	2707	$exit->slaying ("?random/$md5");
1849	$exit->msg (undef);	2708	$exit->msg (undef);
1850	}	2709	}
1851	}	2710	}
…		…
1853	sub cf::object::player::enter_exit {	2712	sub cf::object::player::enter_exit {
1854	my ($self, $exit) = @_;	2713	my ($self, $exit) = @_;
1855		2714
1856	return unless $self->type == cf::PLAYER;	2715	return unless $self->type == cf::PLAYER;
1857		2716
		2717	if ($exit->slaying eq "/!") {
		2718	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2719	# the problem is that $exit might not survive long enough
		2720	# so it needs to be done right now, right here
		2721	cf::sync_job { prepare_random_map $exit };
		2722	}
		2723
		2724	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2725	my $hp = $exit->stats->hp;
		2726	my $sp = $exit->stats->sp;
		2727
1858	$self->enter_link;	2728	$self->enter_link;
1859		2729
		2730	# if exit is damned, update players death & WoR home-position
		2731	$self->contr->savebed ($slaying, $hp, $sp)
		2732	if $exit->flag (FLAG_DAMNED);
		2733
1860	(async {	2734	(async {
		2735	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2736
1861	$self->deactivate_recursive; # just to be sure	2737	$self->deactivate_recursive; # just to be sure
1862	unless (eval {	2738	unless (eval {
1863	prepare_random_map $exit	2739	$self->goto ($slaying, $hp, $sp);
1864	if $exit->slaying eq "/!";
1865
1866	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1867	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1868		2740
1869	1;	2741	1;
1870	}) {	2742	}) {
1871	$self->message ("Something went wrong deep within the crossfire server. "	2743	$self->message ("Something went wrong deep within the crossfire server. "
1872	. "I'll try to bring you back to the map you were before. "	2744	. "I'll try to bring you back to the map you were before. "
1873	. "Please report this to the dungeon master!",	2745	. "Please report this to the dungeon master!",
1874	cf::NDI_UNIQUE | cf::NDI_RED);	2746	cf::NDI_UNIQUE | cf::NDI_RED);
1875		2747
1876	warn "ERROR in enter_exit: $@";	2748	warn "ERROR in enter_exit: $@";
1877	$self->leave_link;	2749	$self->leave_link;
1878	}	2750	}
1879	})->prio (1);	2751	})->prio (1);
…		…
1892		2764
1893	sub cf::client::send_drawinfo {	2765	sub cf::client::send_drawinfo {
1894	my ($self, $text, $flags) = @_;	2766	my ($self, $text, $flags) = @_;
1895		2767
1896	utf8::encode $text;	2768	utf8::encode $text;
1897	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2769	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1898	}	2770	}
1899		2771
		2772	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2773
		2774	Send a drawinfo or msg packet to the client, formatting the msg for the
		2775	client if neccessary. C<$type> should be a string identifying the type of
		2776	the message, with C<log> being the default. If C<$color> is negative, suppress
		2777	the message unless the client supports the msg packet.
		2778
		2779	=cut
		2780
		2781	# non-persistent channels (usually the info channel)
		2782	our %CHANNEL = (
		2783	"c/identify" => {
		2784	id => "infobox",
		2785	title => "Identify",
		2786	reply => undef,
		2787	tooltip => "Items recently identified",
		2788	},
		2789	"c/examine" => {
		2790	id => "infobox",
		2791	title => "Examine",
		2792	reply => undef,
		2793	tooltip => "Signs and other items you examined",
		2794	},
		2795	"c/book" => {
		2796	id => "infobox",
		2797	title => "Book",
		2798	reply => undef,
		2799	tooltip => "The contents of a note or book",
		2800	},
		2801	"c/lookat" => {
		2802	id => "infobox",
		2803	title => "Look",
		2804	reply => undef,
		2805	tooltip => "What you saw there",
		2806	},
		2807	"c/who" => {
		2808	id => "infobox",
		2809	title => "Players",
		2810	reply => undef,
		2811	tooltip => "Shows players who are currently online",
		2812	},
		2813	"c/body" => {
		2814	id => "infobox",
		2815	title => "Body Parts",
		2816	reply => undef,
		2817	tooltip => "Shows which body parts you posess and are available",
		2818	},
		2819	"c/uptime" => {
		2820	id => "infobox",
		2821	title => "Uptime",
		2822	reply => undef,
		2823	tooltip => "How long the server has been running since last restart",
		2824	},
		2825	"c/mapinfo" => {
		2826	id => "infobox",
		2827	title => "Map Info",
		2828	reply => undef,
		2829	tooltip => "Information related to the maps",
		2830	},
		2831	);
		2832
		2833	sub cf::client::send_msg {
		2834	my ($self, $channel, $msg, $color, @extra) = @_;
		2835
		2836	$msg = $self->pl->expand_cfpod ($msg);
		2837
		2838	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2839
		2840	# check predefined channels, for the benefit of C
		2841	if ($CHANNEL{$channel}) {
		2842	$channel = $CHANNEL{$channel};
		2843
		2844	$self->ext_msg (channel_info => $channel)
		2845	if $self->can_msg;
		2846
		2847	$channel = $channel->{id};
		2848
		2849	} elsif (ref $channel) {
		2850	# send meta info to client, if not yet sent
		2851	unless (exists $self->{channel}{$channel->{id}}) {
		2852	$self->{channel}{$channel->{id}} = $channel;
		2853	$self->ext_msg (channel_info => $channel)
		2854	if $self->can_msg;
		2855	}
		2856
		2857	$channel = $channel->{id};
		2858	}
		2859
		2860	return unless @extra || length $msg;
		2861
		2862	if ($self->can_msg) {
		2863	# default colour, mask it out
		2864	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2865	if $color & cf::NDI_DEF;
		2866
		2867	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2868	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2869	} else {
		2870	if ($color >= 0) {
		2871	# replace some tags by gcfclient-compatible ones
		2872	for ($msg) {
		2873	1 while
		2874	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2875	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2876	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2877	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2878	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2879	}
		2880
		2881	$color &= cf::NDI_COLOR_MASK;
		2882
		2883	utf8::encode $msg;
		2884
		2885	if (0 && $msg =~ /\[/) {
		2886	# COMMAND/INFO
		2887	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2888	} else {
		2889	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2890	$self->send_packet ("drawinfo $color $msg")
		2891	}
		2892	}
		2893	}
		2894	}
		2895
		2896	=item $client->ext_msg ($type, @msg)
		2897
		2898	Sends an ext event to the client.
		2899
		2900	=cut
		2901
		2902	sub cf::client::ext_msg($$@) {
		2903	my ($self, $type, @msg) = @_;
		2904
		2905	if ($self->extcmd == 2) {
		2906	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2907	} elsif ($self->extcmd == 1) { # TODO: remove
		2908	push @msg, msgtype => "event_$type";
		2909	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2910	}
		2911	}
		2912
		2913	=item $client->ext_reply ($msgid, @msg)
		2914
		2915	Sends an ext reply to the client.
		2916
		2917	=cut
		2918
		2919	sub cf::client::ext_reply($$@) {
		2920	my ($self, $id, @msg) = @_;
		2921
		2922	if ($self->extcmd == 2) {
		2923	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2924	} elsif ($self->extcmd == 1) {
		2925	#TODO: version 1, remove
		2926	unshift @msg, msgtype => "reply", msgid => $id;
		2927	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2928	}
		2929	}
1900		2930
1901	=item $success = $client->query ($flags, "text", \&cb)	2931	=item $success = $client->query ($flags, "text", \&cb)
1902		2932
1903	Queues a query to the client, calling the given callback with	2933	Queues a query to the client, calling the given callback with
1904	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2934	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1905	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2935	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1906		2936
1907	Queries can fail, so check the return code. Or don't, as queries will become	2937	Queries can fail, so check the return code. Or don't, as queries will
1908	reliable at some point in the future.	2938	become reliable at some point in the future.
1909		2939
1910	=cut	2940	=cut
1911		2941
1912	sub cf::client::query {	2942	sub cf::client::query {
1913	my ($self, $flags, $text, $cb) = @_;	2943	my ($self, $flags, $text, $cb) = @_;
…		…
1921	utf8::encode $text;	2951	utf8::encode $text;
1922	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2952	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1923		2953
1924	$self->send_packet ($self->{query_queue}[0][0])	2954	$self->send_packet ($self->{query_queue}[0][0])
1925	if @{ $self->{query_queue} } == 1;	2955	if @{ $self->{query_queue} } == 1;
		2956
		2957	1
1926	}	2958	}
1927		2959
1928	cf::client->attach (	2960	cf::client->attach (
		2961	on_connect => sub {
		2962	my ($ns) = @_;
		2963
		2964	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2965	},
1929	on_reply => sub {	2966	on_reply => sub {
1930	my ($ns, $msg) = @_;	2967	my ($ns, $msg) = @_;
1931		2968
1932	# this weird shuffling is so that direct followup queries	2969	# this weird shuffling is so that direct followup queries
1933	# get handled first	2970	# get handled first
1934	my $queue = delete $ns->{query_queue}	2971	my $queue = delete $ns->{query_queue}
1935	or return; # be conservative, not sure how that can happen, but we saw a crash here	2972	or return; # be conservative, not sure how that can happen, but we saw a crash here
1936		2973
1937	(shift @$queue)->[1]->($msg);	2974	(shift @$queue)->[1]->($msg);
		2975	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1938		2976
1939	push @{ $ns->{query_queue} }, @$queue;	2977	push @{ $ns->{query_queue} }, @$queue;
1940		2978
1941	if (@{ $ns->{query_queue} } == @$queue) {	2979	if (@{ $ns->{query_queue} } == @$queue) {
1942	if (@$queue) {	2980	if (@$queue) {
…		…
1944	} else {	2982	} else {
1945	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2983	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1946	}	2984	}
1947	}	2985	}
1948	},	2986	},
		2987	on_exticmd => sub {
		2988	my ($ns, $buf) = @_;
		2989
		2990	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2991
		2992	if (ref $msg) {
		2993	my ($type, $reply, @payload) =
		2994	"ARRAY" eq ref $msg
		2995	? @$msg
		2996	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2997
		2998	my @reply;
		2999
		3000	if (my $cb = $EXTICMD{$type}) {
		3001	@reply = $cb->($ns, @payload);
		3002	}
		3003
		3004	$ns->ext_reply ($reply, @reply)
		3005	if $reply;
		3006
		3007	} else {
		3008	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3009	}
		3010
		3011	cf::override;
		3012	},
1949	);	3013	);
1950		3014
1951	=item $client->async (\&cb)	3015	=item $client->async (\&cb)
1952		3016
1953	Create a new coroutine, running the specified callback. The coroutine will	3017	Create a new coroutine, running the specified callback. The coroutine will
…		…
1994	our $safe = new Safe "safe";	3058	our $safe = new Safe "safe";
1995	our $safe_hole = new Safe::Hole;	3059	our $safe_hole = new Safe::Hole;
1996		3060
1997	$SIG{FPE} = 'IGNORE';	3061	$SIG{FPE} = 'IGNORE';
1998		3062
1999	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3063	$safe->permit_only (Opcode::opset qw(
		3064	:base_core :base_mem :base_orig :base_math
		3065	grepstart grepwhile mapstart mapwhile
		3066	sort time
		3067	));
2000		3068
2001	# here we export the classes and methods available to script code	3069	# here we export the classes and methods available to script code
2002		3070
2003	=pod	3071	=pod
2004		3072
2005	The following fucntions and emthods are available within a safe environment:	3073	The following functions and methods are available within a safe environment:
2006		3074
2007	cf::object contr pay_amount pay_player map	3075	cf::object
		3076	contr pay_amount pay_player map x y force_find force_add destroy
		3077	insert remove name archname title slaying race decrease_ob_nr
		3078
2008	cf::object::player player	3079	cf::object::player
2009	cf::player peaceful	3080	player
2010	cf::map trigger	3081
		3082	cf::player
		3083	peaceful
		3084
		3085	cf::map
		3086	trigger
2011		3087
2012	=cut	3088	=cut
2013		3089
2014	for (	3090	for (
2015	["cf::object" => qw(contr pay_amount pay_player map)],	3091	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3092	insert remove inv name archname title slaying race
		3093	decrease_ob_nr destroy)],
2016	["cf::object::player" => qw(player)],	3094	["cf::object::player" => qw(player)],
2017	["cf::player" => qw(peaceful)],	3095	["cf::player" => qw(peaceful)],
2018	["cf::map" => qw(trigger)],	3096	["cf::map" => qw(trigger)],
2019	) {	3097	) {
2020	no strict 'refs';	3098	no strict 'refs';
…		…
2091	=back	3169	=back
2092		3170
2093	=cut	3171	=cut
2094		3172
2095	#############################################################################	3173	#############################################################################
		3174	# the server's init and main functions
2096		3175
2097	=head2 EXTENSION DATABASE SUPPORT	3176	sub load_facedata($) {
		3177	my ($path) = @_;
2098		3178
2099	Crossfire maintains a very simple database for extension use. It can	3179	# HACK to clear player env face cache, we need some signal framework
2100	currently store anything that can be serialised using Storable, which	3180	# for this (global event?)
2101	excludes objects.	3181	%ext::player_env::MUSIC_FACE_CACHE = ();
2102		3182
2103	The parameter C<$family> should best start with the name of the extension	3183	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2104	using it, it should be unique.
2105		3184
2106	=over 4	3185	warn "loading facedata from $path\n";
2107		3186
2108	=item $hashref = cf::db_get $family	3187	my $facedata;
		3188	0 < aio_load $path, $facedata
		3189	or die "$path: $!";
2109		3190
2110	Return a hashref for use by the extension C<$family>, which can be	3191	$facedata = Coro::Storable::thaw $facedata;
2111	modified. After modifications, you have to call C<cf::db_dirty> or
2112	C<cf::db_sync>.
2113		3192
2114	=item $value = cf::db_get $family => $key	3193	$facedata->{version} == 2
		3194	or cf::cleanup "$path: version mismatch, cannot proceed.";
2115		3195
2116	Returns a single value from the database	3196	# patch in the exptable
2117		3197	$facedata->{resource}{"res/exp_table"} = {
2118	=item cf::db_put $family => $hashref	3198	type => FT_RSRC,
2119		3199	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2120	Stores the given family hashref into the database. Updates are delayed, if
2121	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2122
2123	=item cf::db_put $family => $key => $value
2124
2125	Stores the given C<$value> in the family hash. Updates are delayed, if you
2126	want the data to be synced to disk immediately, use C<cf::db_sync>.
2127
2128	=item cf::db_dirty
2129
2130	Marks the database as dirty, to be updated at a later time.
2131
2132	=item cf::db_sync
2133
2134	Immediately write the database to disk I<if it is dirty>.
2135
2136	=cut
2137
2138	our $DB;
2139
2140	{
2141	my $path = cf::localdir . "/database.pst";
2142
2143	sub db_load() {
2144	$DB = stat $path ? Storable::retrieve $path : { };
2145	}
2146
2147	my $pid;
2148
2149	sub db_save() {
2150	waitpid $pid, 0 if $pid;
2151	if (0 == ($pid = fork)) {
2152	$DB->{_meta}{version} = 1;
2153	Storable::nstore $DB, "$path~";
2154	rename "$path~", $path;
2155	cf::_exit 0 if defined $pid;
2156	}
2157	}
2158
2159	my $dirty;
2160
2161	sub db_sync() {
2162	db_save if $dirty;
2163	undef $dirty;
2164	}
2165
2166	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2167	db_sync;
2168	});	3200	};
		3201	cf::cede_to_tick;
2169		3202
2170	sub db_dirty() {
2171	$dirty = 1;
2172	$idle->start;
2173	}	3203	{
		3204	my $faces = $facedata->{faceinfo};
2174		3205
2175	sub db_get($;$) {	3206	while (my ($face, $info) = each %$faces) {
2176	@_ >= 2	3207	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2177	? $DB->{$_[0]}{$_[1]}
2178	: ($DB->{$_[0]} ||= { })
2179	}
2180		3208
2181	sub db_put($$;$) {	3209	cf::face::set_visibility $idx, $info->{visibility};
2182	if (@_ >= 3) {	3210	cf::face::set_magicmap $idx, $info->{magicmap};
2183	$DB->{$_[0]}{$_[1]} = $_[2];	3211	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2184	} else {	3212	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2185	$DB->{$_[0]} = $_[1];
2186	}
2187	db_dirty;
2188	}
2189		3213
2190	cf::global->attach (	3214	cf::cede_to_tick;
2191	prio => 10000,
2192	on_cleanup => sub {
2193	db_sync;
2194	},	3215	}
2195	);
2196	}
2197		3216
2198	#############################################################################	3217	while (my ($face, $info) = each %$faces) {
2199	# the server's main()	3218	next unless $info->{smooth};
2200		3219
2201	sub cfg_load {	3220	my $idx = cf::face::find $face
		3221	or next;
		3222
		3223	if (my $smooth = cf::face::find $info->{smooth}) {
		3224	cf::face::set_smooth $idx, $smooth;
		3225	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3226	} else {
		3227	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3228	}
		3229
		3230	cf::cede_to_tick;
		3231	}
		3232	}
		3233
		3234	{
		3235	my $anims = $facedata->{animinfo};
		3236
		3237	while (my ($anim, $info) = each %$anims) {
		3238	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3239	cf::cede_to_tick;
		3240	}
		3241
		3242	cf::anim::invalidate_all; # d'oh
		3243	}
		3244
		3245	{
		3246	# TODO: for gcfclient pleasure, we should give resources
		3247	# that gcfclient doesn't grok a >10000 face index.
		3248	my $res = $facedata->{resource};
		3249
		3250	while (my ($name, $info) = each %$res) {
		3251	if (defined $info->{type}) {
		3252	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3253	my $data;
		3254
		3255	if ($info->{type} & 1) {
		3256	# prepend meta info
		3257
		3258	my $meta = $enc->encode ({
		3259	name => $name,
		3260	%{ $info->{meta} || {} },
		3261	});
		3262
		3263	$data = pack "(w/a*)*", $meta, $info->{data};
		3264	} else {
		3265	$data = $info->{data};
		3266	}
		3267
		3268	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3269	cf::face::set_type $idx, $info->{type};
		3270	} else {
		3271	$RESOURCE{$name} = $info;
		3272	}
		3273
		3274	cf::cede_to_tick;
		3275	}
		3276	}
		3277
		3278	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3279
		3280	1
		3281	}
		3282
		3283	cf::global->attach (on_resource_update => sub {
		3284	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3285	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3286
		3287	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3288	my $sound = $soundconf->{compat}[$_]
		3289	or next;
		3290
		3291	my $face = cf::face::find "sound/$sound->[1]";
		3292	cf::sound::set $sound->[0] => $face;
		3293	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3294	}
		3295
		3296	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3297	my $face = cf::face::find "sound/$v";
		3298	cf::sound::set $k => $face;
		3299	}
		3300	}
		3301	});
		3302
		3303	register_exticmd fx_want => sub {
		3304	my ($ns, $want) = @_;
		3305
		3306	while (my ($k, $v) = each %$want) {
		3307	$ns->fx_want ($k, $v);
		3308	}
		3309	};
		3310
		3311	sub reload_regions {
		3312	# HACK to clear player env face cache, we need some signal framework
		3313	# for this (global event?)
		3314	%ext::player_env::MUSIC_FACE_CACHE = ();
		3315
		3316	load_resource_file "$MAPDIR/regions"
		3317	or die "unable to load regions file\n";
		3318
		3319	for (cf::region::list) {
		3320	$_->{match} = qr/$_->{match}/
		3321	if exists $_->{match};
		3322	}
		3323	}
		3324
		3325	sub reload_facedata {
		3326	load_facedata "$DATADIR/facedata"
		3327	or die "unable to load facedata\n";
		3328	}
		3329
		3330	sub reload_archetypes {
		3331	load_resource_file "$DATADIR/archetypes"
		3332	or die "unable to load archetypes\n";
		3333	#d# NEED to laod twice to resolve forward references
		3334	# this really needs to be done in an extra post-pass
		3335	# (which needs to be synchronous, so solve it differently)
		3336	load_resource_file "$DATADIR/archetypes"
		3337	or die "unable to load archetypes\n";
		3338	}
		3339
		3340	sub reload_treasures {
		3341	load_resource_file "$DATADIR/treasures"
		3342	or die "unable to load treasurelists\n";
		3343	}
		3344
		3345	sub reload_resources {
		3346	warn "reloading resource files...\n";
		3347
		3348	reload_regions;
		3349	reload_facedata;
		3350	#reload_archetypes;#d#
		3351	reload_archetypes;
		3352	reload_treasures;
		3353
		3354	warn "finished reloading resource files\n";
		3355	}
		3356
		3357	sub init {
		3358	reload_resources;
		3359	}
		3360
		3361	sub reload_config {
2202	open my $fh, "<:utf8", cf::confdir . "/config"	3362	open my $fh, "<:utf8", "$CONFDIR/config"
2203	or return;	3363	or return;
2204		3364
2205	local $/;	3365	local $/;
2206	*CFG = YAML::Syck::Load <$fh>;	3366	*CFG = YAML::Load <$fh>;
2207		3367
2208	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3368	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2209		3369
2210	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3370	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2211	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3371	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2221		3381
2222	sub main {	3382	sub main {
2223	# we must not ever block the main coroutine	3383	# we must not ever block the main coroutine
2224	local $Coro::idle = sub {	3384	local $Coro::idle = sub {
2225	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3385	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2226	async { Event::one_event };	3386	(async {
		3387	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3388	EV::loop EV::LOOP_ONESHOT;
		3389	})->prio (Coro::PRIO_MAX);
2227	};	3390	};
2228		3391
2229	cfg_load;	3392	reload_config;
2230	db_load;	3393	db_init;
2231	load_extensions;	3394	load_extensions;
		3395
		3396	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3397	evthread_start IO::AIO::poll_fileno;
2232	Event::loop;	3398	EV::loop;
2233	}	3399	}
2234		3400
2235	#############################################################################	3401	#############################################################################
2236	# initialisation and cleanup	3402	# initialisation and cleanup
2237		3403
2238	# install some emergency cleanup handlers	3404	# install some emergency cleanup handlers
2239	BEGIN {	3405	BEGIN {
		3406	our %SIGWATCHER = ();
2240	for my $signal (qw(INT HUP TERM)) {	3407	for my $signal (qw(INT HUP TERM)) {
2241	Event->signal (	3408	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2242	data => WF_AUTOCANCEL,
2243	signal => $signal,
2244	cb => sub {
2245	cf::cleanup "SIG$signal";	3409	cf::cleanup "SIG$signal";
2246	},
2247	);	3410	};
		3411	}
		3412	}
		3413
		3414	sub write_runtime_sync {
		3415	my $runtime = "$LOCALDIR/runtime";
		3416
		3417	# first touch the runtime file to show we are still running:
		3418	# the fsync below can take a very very long time.
		3419
		3420	IO::AIO::aio_utime $runtime, undef, undef;
		3421
		3422	my $guard = cf::lock_acquire "write_runtime";
		3423
		3424	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3425	or return;
		3426
		3427	my $value = $cf::RUNTIME + 90 + 10;
		3428	# 10 is the runtime save interval, for a monotonic clock
		3429	# 60 allows for the watchdog to kill the server.
		3430
		3431	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3432	and return;
		3433
		3434	# always fsync - this file is important
		3435	aio_fsync $fh
		3436	and return;
		3437
		3438	# touch it again to show we are up-to-date
		3439	aio_utime $fh, undef, undef;
		3440
		3441	close $fh
		3442	or return;
		3443
		3444	aio_rename "$runtime~", $runtime
		3445	and return;
		3446
		3447	warn "runtime file written.\n";
		3448
2248	}	3449	1
		3450	}
		3451
		3452	our $uuid_lock;
		3453	our $uuid_skip;
		3454
		3455	sub write_uuid_sync($) {
		3456	$uuid_skip ||= $_[0];
		3457
		3458	return if $uuid_lock;
		3459	local $uuid_lock = 1;
		3460
		3461	my $uuid = "$LOCALDIR/uuid";
		3462
		3463	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3464	or return;
		3465
		3466	my $value = uuid_str $uuid_skip + uuid_seq uuid_cur;
		3467	$uuid_skip = 0;
		3468
		3469	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3470	and return;
		3471
		3472	# always fsync - this file is important
		3473	aio_fsync $fh
		3474	and return;
		3475
		3476	close $fh
		3477	or return;
		3478
		3479	aio_rename "$uuid~", $uuid
		3480	and return;
		3481
		3482	warn "uuid file written ($value).\n";
		3483
		3484	1
		3485
		3486	}
		3487
		3488	sub write_uuid($$) {
		3489	my ($skip, $sync) = @_;
		3490
		3491	$sync ? write_uuid_sync $skip
		3492	: async { write_uuid_sync $skip };
2249	}	3493	}
2250		3494
2251	sub emergency_save() {	3495	sub emergency_save() {
2252	my $freeze_guard = cf::freeze_mainloop;	3496	my $freeze_guard = cf::freeze_mainloop;
2253		3497
2254	warn "enter emergency perl save\n";	3498	warn "enter emergency perl save\n";
2255		3499
2256	cf::sync_job {	3500	cf::sync_job {
2257	# use a peculiar iteration method to avoid tripping on perl	3501	# use a peculiar iteration method to avoid tripping on perl
2258	# refcount bugs in for. also avoids problems with players	3502	# refcount bugs in for. also avoids problems with players
2259	# and maps saved/Destroyed asynchronously.	3503	# and maps saved/destroyed asynchronously.
2260	warn "begin emergency player save\n";	3504	warn "begin emergency player save\n";
2261	for my $login (keys %cf::PLAYER) {	3505	for my $login (keys %cf::PLAYER) {
2262	my $pl = $cf::PLAYER{$login} or next;	3506	my $pl = $cf::PLAYER{$login} or next;
2263	$pl->valid or next;	3507	$pl->valid or next;
		3508	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2264	$pl->save;	3509	$pl->save;
2265	}	3510	}
2266	warn "end emergency player save\n";	3511	warn "end emergency player save\n";
2267		3512
2268	warn "begin emergency map save\n";	3513	warn "begin emergency map save\n";
…		…
2270	my $map = $cf::MAP{$path} or next;	3515	my $map = $cf::MAP{$path} or next;
2271	$map->valid or next;	3516	$map->valid or next;
2272	$map->save;	3517	$map->save;
2273	}	3518	}
2274	warn "end emergency map save\n";	3519	warn "end emergency map save\n";
		3520
		3521	warn "begin emergency database checkpoint\n";
		3522	BDB::db_env_txn_checkpoint $DB_ENV;
		3523	warn "end emergency database checkpoint\n";
		3524
		3525	warn "begin write uuid\n";
		3526	write_uuid_sync 1;
		3527	warn "end write uuid\n";
2275	};	3528	};
2276		3529
2277	warn "leave emergency perl save\n";	3530	warn "leave emergency perl save\n";
2278	}	3531	}
2279		3532
		3533	sub post_cleanup {
		3534	my ($make_core) = @_;
		3535
		3536	warn Carp::longmess "post_cleanup backtrace"
		3537	if $make_core;
		3538	}
		3539
2280	sub reload() {	3540	sub do_reload_perl() {
2281	# can/must only be called in main	3541	# can/must only be called in main
2282	if ($Coro::current != $Coro::main) {	3542	if ($Coro::current != $Coro::main) {
2283	warn "can only reload from main coroutine\n";	3543	warn "can only reload from main coroutine";
2284	return;	3544	return;
2285	}	3545	}
2286		3546
2287	warn "reloading...";	3547	warn "reloading...";
2288		3548
2289	warn "freezing server";	3549	warn "entering sync_job";
2290	my $guard = freeze_mainloop;	3550
		3551	cf::sync_job {
		3552	cf::write_runtime_sync; # external watchdog should not bark
2291	cf::emergency_save;	3553	cf::emergency_save;
		3554	cf::write_runtime_sync; # external watchdog should not bark
2292		3555
2293	warn "sync database to disk";	3556	warn "syncing database to disk";
2294	cf::db_sync;	3557	BDB::db_env_txn_checkpoint $DB_ENV;
2295	IO::AIO::flush;
2296		3558
2297	eval {
2298	# if anything goes wrong in here, we should simply crash as we already saved	3559	# if anything goes wrong in here, we should simply crash as we already saved
2299		3560
2300	warn "cancel all watchers";	3561	warn "flushing outstanding aio requests";
2301	for (Event::all_watchers) {	3562	for (;;) {
2302	$_->cancel if $_->data & WF_AUTOCANCEL;	3563	BDB::flush;
		3564	IO::AIO::flush;
		3565	Coro::cede_notself;
		3566	last unless IO::AIO::nreqs || BDB::nreqs;
		3567	warn "iterate...";
2303	}	3568	}
2304		3569
		3570	++$RELOAD;
		3571
2305	warn "cancel all extension coros";	3572	warn "cancelling all extension coros";
2306	$_->cancel for values %EXT_CORO;	3573	$_->cancel for values %EXT_CORO;
2307	%EXT_CORO = ();	3574	%EXT_CORO = ();
2308		3575
2309	warn "remove commands";	3576	warn "removing commands";
2310	%COMMAND = ();	3577	%COMMAND = ();
2311		3578
2312	warn "remove ext commands";	3579	warn "removing ext/exti commands";
2313	%EXTCMD = ();	3580	%EXTCMD = ();
		3581	%EXTICMD = ();
2314		3582
2315	warn "unload/nuke all extensions";	3583	warn "unloading/nuking all extensions";
2316	for my $pkg (@EXTS) {	3584	for my $pkg (@EXTS) {
2317	warn "... unloading $pkg";	3585	warn "... unloading $pkg";
2318		3586
2319	if (my $cb = $pkg->can ("unload")) {	3587	if (my $cb = $pkg->can ("unload")) {
2320	eval {	3588	eval {
…		…
2325		3593
2326	warn "... nuking $pkg";	3594	warn "... nuking $pkg";
2327	Symbol::delete_package $pkg;	3595	Symbol::delete_package $pkg;
2328	}	3596	}
2329		3597
2330	warn "unload all perl modules loaded from $LIBDIR";	3598	warn "unloading all perl modules loaded from $LIBDIR";
2331	while (my ($k, $v) = each %INC) {	3599	while (my ($k, $v) = each %INC) {
2332	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3600	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2333		3601
2334	warn "removing <$k>";	3602	warn "... unloading $k";
2335	delete $INC{$k};	3603	delete $INC{$k};
2336		3604
2337	$k =~ s/\.pm$//;	3605	$k =~ s/\.pm$//;
2338	$k =~ s/\//::/g;	3606	$k =~ s/\//::/g;
2339		3607
…		…
2342	}	3610	}
2343		3611
2344	Symbol::delete_package $k;	3612	Symbol::delete_package $k;
2345	}	3613	}
2346		3614
2347	warn "get rid of safe::, as good as possible";	3615	warn "getting rid of safe::, as good as possible";
2348	Symbol::delete_package "safe::$_"	3616	Symbol::delete_package "safe::$_"
2349	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3617	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2350		3618
2351	warn "unload cf.pm \"a bit\"";	3619	warn "unloading cf.pm \"a bit\"";
2352	delete $INC{"cf.pm"};	3620	delete $INC{"cf.pm"};
		3621	delete $INC{"cf/pod.pm"};
2353		3622
2354	# don't, removes xs symbols, too,	3623	# don't, removes xs symbols, too,
2355	# and global variables created in xs	3624	# and global variables created in xs
2356	#Symbol::delete_package __PACKAGE__;	3625	#Symbol::delete_package __PACKAGE__;
2357		3626
		3627	warn "unload completed, starting to reload now";
		3628
2358	warn "reloading cf.pm";	3629	warn "reloading cf.pm";
2359	require cf;	3630	require cf;
2360	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3631	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2361		3632
2362	warn "load config and database again";	3633	warn "loading config and database again";
2363	cf::cfg_load;	3634	cf::reload_config;
2364	cf::db_load;
2365		3635
2366	warn "load extensions";	3636	warn "loading extensions";
2367	cf::load_extensions;	3637	cf::load_extensions;
2368		3638
2369	warn "reattach attachments to objects/players";	3639	warn "reattaching attachments to objects/players";
2370	_global_reattach;	3640	_global_reattach; # objects, sockets
2371	warn "reattach attachments to maps";	3641	warn "reattaching attachments to maps";
2372	reattach $_ for values %MAP;	3642	reattach $_ for values %MAP;
		3643	warn "reattaching attachments to players";
		3644	reattach $_ for values %PLAYER;
		3645
		3646	warn "leaving sync_job";
		3647
		3648	1
		3649	} or do {
		3650	warn $@;
		3651	cf::cleanup "error while reloading, exiting.";
2373	};	3652	};
2374
2375	if ($@) {
2376	warn $@;
2377	warn "error while reloading, exiting.";
2378	exit 1;
2379	}
2380		3653
2381	warn "reloaded";	3654	warn "reloaded";
2382	};	3655	};
2383		3656
		3657	our $RELOAD_WATCHER; # used only during reload
		3658
		3659	sub reload_perl() {
		3660	# doing reload synchronously and two reloads happen back-to-back,
		3661	# coro crashes during coro_state_free->destroy here.
		3662
		3663	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
		3664	do_reload_perl;
		3665	undef $RELOAD_WATCHER;
		3666	};
		3667	}
		3668
2384	register_command "reload" => sub {	3669	register_command "reload" => sub {
2385	my ($who, $arg) = @_;	3670	my ($who, $arg) = @_;
2386		3671
2387	if ($who->flag (FLAG_WIZ)) {	3672	if ($who->flag (FLAG_WIZ)) {
2388	$who->message ("start of reload.");
2389	reload;
2390	$who->message ("end of reload.");	3673	$who->message ("reloading server.");
		3674	async {
		3675	$Coro::current->{desc} = "perl_reload";
		3676	reload_perl;
		3677	};
2391	}	3678	}
2392	};	3679	};
2393		3680
2394	unshift @INC, $LIBDIR;	3681	unshift @INC, $LIBDIR;
2395		3682
2396	$TICK_WATCHER = Event->timer (	3683	my $bug_warning = 0;
2397	reentrant => 0,
2398	prio => 0,
2399	at => $NEXT_TICK || $TICK,
2400	data => WF_AUTOCANCEL,
2401	cb => sub {
2402	$NOW = Event::time;
2403		3684
		3685	our @WAIT_FOR_TICK;
		3686	our @WAIT_FOR_TICK_BEGIN;
		3687
		3688	sub wait_for_tick {
		3689	return if tick_inhibit;
		3690	return if $Coro::current == $Coro::main;
		3691
		3692	my $signal = new Coro::Signal;
		3693	push @WAIT_FOR_TICK, $signal;
		3694	$signal->wait;
		3695	}
		3696
		3697	sub wait_for_tick_begin {
		3698	return if tick_inhibit;
		3699	return if $Coro::current == $Coro::main;
		3700
		3701	my $signal = new Coro::Signal;
		3702	push @WAIT_FOR_TICK_BEGIN, $signal;
		3703	$signal->wait;
		3704	}
		3705
		3706	sub tick {
		3707	if ($Coro::current != $Coro::main) {
		3708	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3709	unless ++$bug_warning > 10;
		3710	return;
		3711	}
		3712
2404	cf::server_tick; # one server iteration	3713	cf::server_tick; # one server iteration
2405	$RUNTIME += $TICK;
2406	$NEXT_TICK += $TICK;
2407		3714
2408	$WAIT_FOR_TICK->broadcast;	3715	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2409	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3716	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2410		3717	Coro::async_pool {
2411	# if we are delayed by four ticks or more, skip them all	3718	$Coro::current->{desc} = "runtime saver";
2412	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2413
2414	$TICK_WATCHER->at ($NEXT_TICK);
2415	$TICK_WATCHER->start;
2416	},
2417	);
2418
2419	IO::AIO::max_poll_time $TICK * 0.2;
2420
2421	Event->io (
2422	fd => IO::AIO::poll_fileno,
2423	poll => 'r',
2424	prio => 5,
2425	data => WF_AUTOCANCEL,
2426	cb => \&IO::AIO::poll_cb,
2427	);
2428
2429	Event->timer (
2430	data => WF_AUTOCANCEL,
2431	after => 0,
2432	interval => 10,
2433	cb => sub {
2434	(Coro::unblock_sub {
2435	write_runtime	3719	write_runtime_sync
2436	or warn "ERROR: unable to write runtime file: $!";	3720	or warn "ERROR: unable to write runtime file: $!";
2437	})->();	3721	};
2438	},	3722	}
2439	);	3723
		3724	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3725	$sig->send;
		3726	}
		3727	while (my $sig = shift @WAIT_FOR_TICK) {
		3728	$sig->send;
		3729	}
		3730
		3731	$LOAD = ($NOW - $TICK_START) / $TICK;
		3732	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3733
		3734	if (0) {
		3735	if ($NEXT_TICK) {
		3736	my $jitter = $TICK_START - $NEXT_TICK;
		3737	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3738	warn "jitter $JITTER\n";#d#
		3739	}
		3740	}
		3741	}
		3742
		3743	{
		3744	# configure BDB
		3745
		3746	BDB::min_parallel 8;
		3747	BDB::max_poll_reqs $TICK * 0.1;
		3748	$Coro::BDB::WATCHER->priority (1);
		3749
		3750	unless ($DB_ENV) {
		3751	$DB_ENV = BDB::db_env_create;
		3752	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3753	| BDB::LOG_AUTOREMOVE, 1);
		3754	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3755	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3756
		3757	cf::sync_job {
		3758	eval {
		3759	BDB::db_env_open
		3760	$DB_ENV,
		3761	$BDBDIR,
		3762	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3763	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3764	0666;
		3765
		3766	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3767	};
		3768
		3769	cf::cleanup "db_env_open(db): $@" if $@;
		3770	};
		3771	}
		3772
		3773	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3774	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3775	};
		3776	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3777	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3778	};
		3779	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3780	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3781	};
		3782	}
		3783
		3784	{
		3785	# configure IO::AIO
		3786
		3787	IO::AIO::min_parallel 8;
		3788	IO::AIO::max_poll_time $TICK * 0.1;
		3789	$Coro::AIO::WATCHER->priority (1);
		3790	}
		3791
		3792	my $_log_backtrace;
		3793
		3794	sub _log_backtrace {
		3795	my ($msg, @addr) = @_;
		3796
		3797	$msg =~ s/\n//;
		3798
		3799	# limit the # of concurrent backtraces
		3800	if ($_log_backtrace < 2) {
		3801	++$_log_backtrace;
		3802	async {
		3803	$Coro::current->{desc} = "abt $msg";
		3804
		3805	my @bt = fork_call {
		3806	@addr = map { sprintf "%x", $_ } @addr;
		3807	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3808	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3809	or die "addr2line: $!";
		3810
		3811	my @funcs;
		3812	my @res = <$fh>;
		3813	chomp for @res;
		3814	while (@res) {
		3815	my ($func, $line) = splice @res, 0, 2, ();
		3816	push @funcs, "[$func] $line";
		3817	}
		3818
		3819	@funcs
		3820	};
		3821
		3822	LOG llevInfo, "[ABT] $msg\n";
		3823	LOG llevInfo, "[ABT] $_\n" for @bt;
		3824	--$_log_backtrace;
		3825	};
		3826	} else {
		3827	LOG llevInfo, "[ABT] $msg\n";
		3828	LOG llevInfo, "[ABT] [suppressed]\n";
		3829	}
		3830	}
		3831
		3832	# load additional modules
		3833	use cf::pod;
2440		3834
2441	END { cf::emergency_save }	3835	END { cf::emergency_save }
2442		3836
2443	1	3837	1
2444		3838

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