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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.216 by root, Thu Feb 15 14:30:21 2007 UTC vs.
Revision 1.414 by root, Thu Apr 10 09:10:45 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 3.5 ();	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 ();
20	use BDB ();	49	use BDB ();
21	use Data::Dumper;	50	use Data::Dumper;
22	use Digest::MD5;	51	use Digest::MD5;
23	use Fcntl;	52	use Fcntl;
		53	use YAML ();
24	use IO::AIO 2.32 ();	54	use IO::AIO 2.51 ();
25	use YAML::Syck ();
26	use Time::HiRes;	55	use Time::HiRes;
27	use Compress::LZF;	56	use Compress::LZF;
		57	use Digest::MD5 ();
28		58
		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
29	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	63	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
30		64
31	use Event; $Event::Eval = 1; # no idea why this is required, but it is	65	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		66
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	67	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34
35	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
36	$YAML::Syck::ImplicitUnicode = 1;
37
38	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
39		68
40	our %COMMAND = ();	69	our %COMMAND = ();
41	our %COMMAND_TIME = ();	70	our %COMMAND_TIME = ();
42		71
43	our @EXTS = (); # list of extension package names	72	our @EXTS = (); # list of extension package names
44	our %EXTCMD = ();	73	our %EXTCMD = ();
		74	our %EXTICMD = ();
45	our %EXT_CORO = (); # coroutines bound to extensions	75	our %EXT_CORO = (); # coroutines bound to extensions
46	our %EXT_MAP = (); # pluggable maps	76	our %EXT_MAP = (); # pluggable maps
47		77
		78	our $RELOAD; # number of reloads so far
48	our @EVENT;	79	our @EVENT;
49	our $LIBDIR = datadir . "/ext";
50		80
51	our $TICK = MAX_TIME * 1e-6;	81	our $CONFDIR = confdir;
52	our $TICK_WATCHER;	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(!)
53	our $AIO_POLL_WATCHER;	95	our $AIO_POLL_WATCHER;
54	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	96	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
55	our $NEXT_TICK;	97	our $NEXT_TICK;
56	our $NOW;
57	our $USE_FSYNC = 1; # use fsync to write maps - default off	98	our $USE_FSYNC = 1; # use fsync to write maps - default off
58		99
59	our $BDB_POLL_WATCHER;	100	our $BDB_POLL_WATCHER;
		101	our $BDB_DEADLOCK_WATCHER;
		102	our $BDB_CHECKPOINT_WATCHER;
		103	our $BDB_TRICKLE_WATCHER;
60	our $DB_ENV;	104	our $DB_ENV;
61		105
62	our %CFG;	106	our %CFG;
63		107
64	our $UPTIME; $UPTIME ||= time;	108	our $UPTIME; $UPTIME ||= time;
65	our $RUNTIME;	109	our $RUNTIME;
		110	our $NOW;
66		111
67	our %PLAYER; # all users	112	our (%PLAYER, %PLAYER_LOADING); # all users
68	our %MAP; # all maps	113	our (%MAP, %MAP_LOADING ); # all maps
69	our $LINK_MAP; # the special {link} map, which is always available	114	our $LINK_MAP; # the special {link} map, which is always available
70	our $RANDOM_MAPS = cf::localdir . "/random";
71	our $BDB_ENV_DIR = cf::localdir . "/db";
72
73	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
74	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
75		115
76	# 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 ∕
77	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	117	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
78		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 $TICK_START; # for load detecting purposes
		123
79	binmode STDOUT;	124	binmode STDOUT;
80	binmode STDERR;	125	binmode STDERR;
81		126
82	# read virtual server time, if available	127	# read virtual server time, if available
83	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	128	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
84	open my $fh, "<", cf::localdir . "/runtime"	129	open my $fh, "<", "$LOCALDIR/runtime"
85	or die "unable to read runtime file: $!";	130	or die "unable to read runtime file: $!";
86	$RUNTIME = <$fh> + 0.;	131	$RUNTIME = <$fh> + 0.;
87	}	132	}
88		133
89	mkdir cf::localdir;	134	mkdir $_
90	mkdir cf::localdir . "/" . cf::playerdir;	135	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
91	mkdir cf::localdir . "/" . cf::tmpdir;
92	mkdir cf::localdir . "/" . cf::uniquedir;
93	mkdir $RANDOM_MAPS;
94	mkdir $BDB_ENV_DIR;
95		136
96	our $EMERGENCY_POSITION;	137	our $EMERGENCY_POSITION;
97		138
98	sub cf::map::normalise;	139	sub cf::map::normalise;
99		140
…		…
110	=item $cf::RUNTIME	151	=item $cf::RUNTIME
111		152
112	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
113	every server tick.	154	every server tick.
114		155
115	=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
116		159
117	The perl library directory, where extensions and cf-specific modules can	160	Various directories - "/etc", read-only install directory, perl-library
118	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.
119		164
120	=item $cf::NOW	165	=item $cf::NOW
121		166
122	The time of the last (current) server tick.	167	The time of the last (current) server tick.
123		168
124	=item $cf::TICK	169	=item $cf::TICK
125		170
126	The interval between server ticks, in seconds.	171	The interval between server ticks, in seconds.
127		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
128	=item %cf::CFG	183	=item %cf::CFG
129		184
130	Configuration for the server, loaded from C</etc/crossfire/config>, or	185	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
131	from wherever your confdir points to.	186	from wherever your confdir points to.
132		187
133	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	188	=item cf::wait_for_tick, cf::wait_for_tick_begin
134		189
135	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
136	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
137	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.
138	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.
139		199
140	=back	200	=back
141		201
142	=cut	202	=cut
143		203
144	BEGIN {	204	BEGIN {
145	*CORE::GLOBAL::warn = sub {	205	*CORE::GLOBAL::warn = sub {
146	my $msg = join "", @_;	206	my $msg = join "", @_;
147	utf8::encode $msg;
148		207
149	$msg .= "\n"	208	$msg .= "\n"
150	unless $msg =~ /\n$/;	209	unless $msg =~ /\n$/;
151		210
		211	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		212
152	LOG llevError, $msg;	213	LOG llevError, $msg;
153	};	214	};
154	}	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#?
155		231
156	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	232	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
157	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	233	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
158	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	234	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
159	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	235	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
160	@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';
161	@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)
162		239
163	# 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
164	# within the Safe compartment.	241	# within the Safe compartment.
165	for my $pkg (qw(	242	for my $pkg (qw(
166	cf::global cf::attachable	243	cf::global cf::attachable
…		…
171	)) {	248	)) {
172	no strict 'refs';	249	no strict 'refs';
173	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	250	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
174	}	251	}
175		252
176	$Event::DIED = sub {	253	$EV::DIED = sub {
177	warn "error in event callback: @_";	254	warn "error in event callback: @_";
178	};	255	};
		256
		257	#############################################################################
179		258
180	=head2 UTILITY FUNCTIONS	259	=head2 UTILITY FUNCTIONS
181		260
182	=over 4	261	=over 4
183		262
…		…
202	$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;
203	$d	282	$d
204	} || "[unable to dump $_[0]: '$@']";	283	} || "[unable to dump $_[0]: '$@']";
205	}	284	}
206		285
207	use JSON::Syck (); # TODO# replace by JSON::PC once working
208
209	=item $ref = cf::from_json $json	286	=item $ref = cf::decode_json $json
210		287
211	Converts a JSON string into the corresponding perl data structure.	288	Converts a JSON string into the corresponding perl data structure.
212		289
213	=cut
214
215	sub from_json($) {
216	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
217	JSON::Syck::Load $_[0]
218	}
219
220	=item $json = cf::to_json $ref	290	=item $json = cf::encode_json $ref
221		291
222	Converts a perl data structure into its JSON representation.	292	Converts a perl data structure into its JSON representation.
223		293
224	=cut	294	=cut
225		295
226	sub to_json($) {	296	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
227	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	297
228	JSON::Syck::Dump $_[0]	298	sub encode_json($) { $json_coder->encode ($_[0]) }
229	}	299	sub decode_json($) { $json_coder->decode ($_[0]) }
230		300
231	=item cf::lock_wait $string	301	=item cf::lock_wait $string
232		302
233	Wait until the given lock is available. See cf::lock_acquire.	303	Wait until the given lock is available. See cf::lock_acquire.
234		304
…		…
237	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
238	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,
239	for example when the coroutine gets canceled), the lock is automatically	309	for example when the coroutine gets canceled), the lock is automatically
240	returned.	310	returned.
241		311
		312	Locks are *not* recursive, locking from the same coro twice results in a
		313	deadlocked coro.
		314
242	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
243	uses map_find and cf::map::load uses map_load).	316	uses map_find and cf::map::load uses map_load).
244		317
		318	=item $locked = cf::lock_active $string
		319
		320	Return true if the lock is currently active, i.e. somebody has locked it.
		321
245	=cut	322	=cut
246		323
247	our %LOCK;	324	our %LOCK;
		325	our %LOCKER;#d#
248		326
249	sub lock_wait($) {	327	sub lock_wait($) {
250	my ($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#
251		334
252	# wait for lock, if any	335	# wait for lock, if any
253	while ($LOCK{$key}) {	336	while ($LOCK{$key}) {
254	push @{ $LOCK{$key} }, $Coro::current;	337	push @{ $LOCK{$key} }, $Coro::current;
255	Coro::schedule;	338	Coro::schedule;
…		…
261		344
262	# wait, to be sure we are not locked	345	# wait, to be sure we are not locked
263	lock_wait $key;	346	lock_wait $key;
264		347
265	$LOCK{$key} = [];	348	$LOCK{$key} = [];
		349	$LOCKER{$key} = $Coro::current;#d#
266		350
267	Coro::guard {	351	Coro::guard {
		352	delete $LOCKER{$key};#d#
268	# wake up all waiters, to be on the safe side	353	# wake up all waiters, to be on the safe side
269	$_->ready for @{ delete $LOCK{$key} };	354	$_->ready for @{ delete $LOCK{$key} };
270	}	355	}
271	}	356	}
272		357
		358	sub lock_active($) {
		359	my ($key) = @_;
		360
		361	! ! $LOCK{$key}
		362	}
		363
273	sub freeze_mainloop {	364	sub freeze_mainloop {
274	return unless $TICK_WATCHER->is_active;	365	tick_inhibit_inc;
275		366
276	my $guard = Coro::guard {	367	Coro::guard \&tick_inhibit_dec;
277	$TICK_WATCHER->start;	368	}
		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($$) {
		378	my ($interval, $cb) = @_;
		379
		380	my $start = rand List::Util::min 180, $interval;
		381
		382	EV::periodic $start, $interval, 0, $cb
		383	}
		384
		385	=item cf::get_slot $time[, $priority[, $name]]
		386
		387	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		388	This call blocks and returns only when you have at least C<$time> seconds
		389	of cpu time till the next tick. The slot is only valid till the next cede.
		390
		391	The optional C<$name> can be used to identify the job to run. It might be
		392	used for statistical purposes and should identify the same time-class.
		393
		394	Useful for short background jobs.
		395
		396	=cut
		397
		398	our @SLOT_QUEUE;
		399	our $SLOT_QUEUE;
		400
		401	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		402	$SLOT_QUEUE = Coro::async {
		403	$Coro::current->desc ("timeslot manager");
		404
		405	my $signal = new Coro::Signal;
		406
		407	while () {
		408	next_job:
		409	my $avail = cf::till_tick;
		410	if ($avail > 0.01) {
		411	for (0 .. $#SLOT_QUEUE) {
		412	if ($SLOT_QUEUE[$_][0] < $avail) {
		413	my $job = splice @SLOT_QUEUE, $_, 1, ();
		414	$job->[2]->send;
		415	Coro::cede;
		416	goto next_job;
		417	}
		418	}
		419	}
		420
		421	if (@SLOT_QUEUE) {
		422	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		423	push @cf::WAIT_FOR_TICK, $signal;
		424	$signal->wait;
		425	} else {
		426	Coro::schedule;
		427	}
278	};	428	}
279	$TICK_WATCHER->stop;	429	};
280	$guard	430
		431	sub get_slot($;$$) {
		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	$sig->wait;
281	}	441	}
282		442
283	=item cf::async { BLOCK }	443	=item cf::async { BLOCK }
284		444
285	Currently the same as Coro::async_pool, meaning you cannot use	445	Currently the same as Coro::async_pool, meaning you cannot use
…		…
290		450
291	BEGIN { *async = \&Coro::async_pool }	451	BEGIN { *async = \&Coro::async_pool }
292		452
293	=item cf::sync_job { BLOCK }	453	=item cf::sync_job { BLOCK }
294		454
295	The design of crossfire+ requires that the main coro ($Coro::main) is	455	The design of Deliantra requires that the main coroutine ($Coro::main)
296	always able to handle events or runnable, as crossfire+ is only partly	456	is always able to handle events or runnable, as Deliantra is only
297	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	457	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		458	acceptable.
298		459
299	If it must be done, put the blocking parts into C<sync_job>. This will run	460	If it must be done, put the blocking parts into C<sync_job>. This will run
300	the given BLOCK in another coroutine while waiting for the result. The	461	the given BLOCK in another coroutine while waiting for the result. The
301	server will be frozen during this time, so the block should either finish	462	server will be frozen during this time, so the block should either finish
302	fast or be very important.	463	fast or be very important.
…		…
305		466
306	sub sync_job(&) {	467	sub sync_job(&) {
307	my ($job) = @_;	468	my ($job) = @_;
308		469
309	if ($Coro::current == $Coro::main) {	470	if ($Coro::current == $Coro::main) {
		471	my $time = EV::time;
		472
310	# this is the main coro, too bad, we have to block	473	# this is the main coro, too bad, we have to block
311	# till the operation succeeds, freezing the server :/	474	# till the operation succeeds, freezing the server :/
312		475
313	# TODO: use suspend/resume instead	476	LOG llevError, Carp::longmess "sync job";#d#
314	# (but this is cancel-safe)	477
315	my $freeze_guard = freeze_mainloop;	478	my $freeze_guard = freeze_mainloop;
316		479
317	my $busy = 1;	480	my $busy = 1;
318	my @res;	481	my @res;
319		482
320	(async {	483	(async {
		484	$Coro::current->desc ("sync job coro");
321	@res = eval { $job->() };	485	@res = eval { $job->() };
322	warn $@ if $@;	486	warn $@ if $@;
323	undef $busy;	487	undef $busy;
324	})->prio (Coro::PRIO_MAX);	488	})->prio (Coro::PRIO_MAX);
325		489
326	while ($busy) {	490	while ($busy) {
327	Coro::cede or Event::one_event;	491	if (Coro::nready) {
		492	Coro::cede_notself;
		493	} else {
		494	EV::loop EV::LOOP_ONESHOT;
328	}	495	}
		496	}
		497
		498	my $time = EV::time - $time;
		499
		500	$TICK_START += $time; # do not account sync jobs to server load
329		501
330	wantarray ? @res : $res[0]	502	wantarray ? @res : $res[0]
331	} else {	503	} else {
332	# we are in another coroutine, how wonderful, everything just works	504	# we are in another coroutine, how wonderful, everything just works
333		505
…		…
353	$EXT_CORO{$coro+0} = $coro;	525	$EXT_CORO{$coro+0} = $coro;
354		526
355	$coro	527	$coro
356	}	528	}
357		529
358	sub write_runtime {	530	=item fork_call { }, $args
359	my $runtime = cf::localdir . "/runtime";
360		531
361	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	532	Executes the given code block with the given arguments in a seperate
362	or return;	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.
363		536
364	my $value = $cf::RUNTIME + 90 + 10;	537	=cut
365	# 10 is the runtime save interval, for a monotonic clock
366	# 60 allows for the watchdog to kill the server.
367		538
368	(aio_write $fh, 0, (length $value), $value, 0) <= 0	539	sub fork_call(&@) {
369	and return;	540	my ($cb, @args) = @_;
370		541
371	# always fsync - this file is important	542	# we seemingly have to make a local copy of the whole thing,
372	aio_fsync $fh	543	# otherwise perl prematurely frees the stuff :/
373	and return;	544	# TODO: investigate and fix (likely this will be rather laborious)
374		545
375	close $fh	546	my @res = Coro::Util::fork_eval {
376	or return;	547	reset_signals;
		548	&$cb
		549	}, @args;
377		550
378	aio_rename "$runtime~", $runtime	551	wantarray ? @res : $res[-1]
379	and return;	552	}
380		553
		554	=item $value = cf::db_get $family => $key
		555
		556	Returns a single value from the environment database.
		557
		558	=item cf::db_put $family => $key => $value
		559
		560	Stores the given C<$value> in the family. It can currently store binary
		561	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		562
		563	=item $db = cf::db_table "name"
		564
		565	Create and/or open a new database table. The string must not be "db" and must be unique
		566	within each server.
		567
		568	=cut
		569
		570	sub db_table($) {
		571	my ($name) = @_;
		572	my $db = BDB::db_create $DB_ENV;
		573
		574	eval {
		575	$db->set_flags (BDB::CHKSUM);
		576
		577	utf8::encode $name;
		578	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		579	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		580	cf::cleanup "db_open(db): $!" if $!;
		581	};
		582	cf::cleanup "db_open(db): $@" if $@;
		583
		584	$db
		585	}
		586
		587	our $DB;
		588
		589	sub db_init {
		590	cf::sync_job {
		591	$DB ||= db_table "db";
		592	};
		593	}
		594
		595	sub db_get($$) {
		596	my $key = "$_[0]/$_[1]";
		597
		598	cf::sync_job {
		599	BDB::db_get $DB, undef, $key, my $data;
		600
		601	$! ? ()
		602	: $data
381	1	603	}
		604	}
		605
		606	sub db_put($$$) {
		607	BDB::dbreq_pri 4;
		608	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		609	}
		610
		611	=item cf::cache $id => [$paths...], $processversion => $process
		612
		613	Generic caching function that returns the value of the resource $id,
		614	caching and regenerating as required.
		615
		616	This function can block.
		617
		618	=cut
		619
		620	sub cache {
		621	my ($id, $src, $processversion, $process) = @_;
		622
		623	my $meta =
		624	join "\x00",
		625	$processversion,
		626	map {
		627	aio_stat $_
		628	and Carp::croak "$_: $!";
		629
		630	($_, (stat _)[7,9])
		631	} @$src;
		632
		633	my $dbmeta = db_get cache => "$id/meta";
		634	if ($dbmeta ne $meta) {
		635	# changed, we may need to process
		636
		637	my @data;
		638	my $md5;
		639
		640	for (0 .. $#$src) {
		641	0 <= aio_load $src->[$_], $data[$_]
		642	or Carp::croak "$src->[$_]: $!";
		643	}
		644
		645	# if processing is expensive, check
		646	# checksum first
		647	if (1) {
		648	$md5 =
		649	join "\x00",
		650	$processversion,
		651	map {
		652	cf::cede_to_tick;
		653	($src->[$_], Digest::MD5::md5_hex $data[$_])
		654	} 0.. $#$src;
		655
		656
		657	my $dbmd5 = db_get cache => "$id/md5";
		658	if ($dbmd5 eq $md5) {
		659	db_put cache => "$id/meta", $meta;
		660
		661	return db_get cache => "$id/data";
		662	}
		663	}
		664
		665	my $t1 = Time::HiRes::time;
		666	my $data = $process->(\@data);
		667	my $t2 = Time::HiRes::time;
		668
		669	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		670
		671	db_put cache => "$id/data", $data;
		672	db_put cache => "$id/md5" , $md5;
		673	db_put cache => "$id/meta", $meta;
		674
		675	return $data;
		676	}
		677
		678	db_get cache => "$id/data"
		679	}
		680
		681	=item cf::datalog type => key => value, ...
		682
		683	Log a datalog packet of the given type with the given key-value pairs.
		684
		685	=cut
		686
		687	sub datalog($@) {
		688	my ($type, %kv) = @_;
		689	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
382	}	690	}
383		691
384	=back	692	=back
385		693
386	=cut	694	=cut
…		…
393	attach callbacks/event handlers (a collection of which is called an "attachment")	701	attach callbacks/event handlers (a collection of which is called an "attachment")
394	to it. All such attachable objects support the following methods.	702	to it. All such attachable objects support the following methods.
395		703
396	In the following description, CLASS can be any of C<global>, C<object>	704	In the following description, CLASS can be any of C<global>, C<object>
397	C<player>, C<client> or C<map> (i.e. the attachable objects in	705	C<player>, C<client> or C<map> (i.e. the attachable objects in
398	crossfire+).	706	Deliantra).
399		707
400	=over 4	708	=over 4
401		709
402	=item $attachable->attach ($attachment, key => $value...)	710	=item $attachable->attach ($attachment, key => $value...)
403		711
…		…
566	$registry = $CB_TYPE[$object_type] ||= [];	874	$registry = $CB_TYPE[$object_type] ||= [];
567		875
568	} elsif ($type eq "subtype") {	876	} elsif ($type eq "subtype") {
569	defined $object_type or Carp::croak "subtype specified without type";	877	defined $object_type or Carp::croak "subtype specified without type";
570	my $object_subtype = shift @arg;	878	my $object_subtype = shift @arg;
571	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	879	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
572		880
573	} elsif ($type eq "package") {	881	} elsif ($type eq "package") {
574	my $pkg = shift @arg;	882	my $pkg = shift @arg;
575		883
576	while (my ($name, $id) = each %cb_id) {	884	while (my ($name, $id) = each %cb_id) {
…		…
605	_attach $registry, $klass, @attach;	913	_attach $registry, $klass, @attach;
606	}	914	}
607		915
608	$obj->{$name} = \%arg;	916	$obj->{$name} = \%arg;
609	} else {	917	} else {
610	warn "object uses attachment '$name' that is not available, postponing.\n";	918	warn "object uses attachment '$name' which is not available, postponing.\n";
611	}	919	}
612		920
613	$obj->{_attachment}{$name} = undef;	921	$obj->{_attachment}{$name} = undef;
614	}	922	}
615		923
…		…
617	if (ref $_[0]) {	925	if (ref $_[0]) {
618	_object_attach @_;	926	_object_attach @_;
619	} else {	927	} else {
620	_attach shift->_attach_registry, @_;	928	_attach shift->_attach_registry, @_;
621	}	929	}
		930	_recalc_want;
622	};	931	};
623		932
624	# all those should be optimised	933	# all those should be optimised
625	sub cf::attachable::detach {	934	sub cf::attachable::detach {
626	my ($obj, $name) = @_;	935	my ($obj, $name) = @_;
…		…
629	delete $obj->{_attachment}{$name};	938	delete $obj->{_attachment}{$name};
630	reattach ($obj);	939	reattach ($obj);
631	} else {	940	} else {
632	Carp::croak "cannot, currently, detach class attachments";	941	Carp::croak "cannot, currently, detach class attachments";
633	}	942	}
		943	_recalc_want;
634	};	944	};
635		945
636	sub cf::attachable::attached {	946	sub cf::attachable::attached {
637	my ($obj, $name) = @_;	947	my ($obj, $name) = @_;
638		948
…		…
653	";	963	";
654	die if $@;	964	die if $@;
655	}	965	}
656		966
657	our $override;	967	our $override;
658	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	968	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
659		969
660	sub override {	970	sub override {
661	$override = 1;	971	$override = 1;
662	@invoke_results = ();	972	@INVOKE_RESULTS = (@_);
663	}	973	}
664		974
665	sub do_invoke {	975	sub do_invoke {
666	my $event = shift;	976	my $event = shift;
667	my $callbacks = shift;	977	my $callbacks = shift;
668		978
669	@invoke_results = ();	979	@INVOKE_RESULTS = ();
670		980
671	local $override;	981	local $override;
672		982
673	for (@$callbacks) {	983	for (@$callbacks) {
674	eval { &{$_->[1]} };	984	eval { &{$_->[1]} };
…		…
683	}	993	}
684		994
685	0	995	0
686	}	996	}
687		997
688	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	998	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
689		999
690	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1000	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
691		1001
692	Generate an object-specific event with the given arguments.	1002	Generate an object-specific event with the given arguments.
693		1003
694	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1004	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
695	removed in future versions), and there is no public API to access override	1005	removed in future versions), and there is no public API to access override
696	results (if you must, access C<@cf::invoke_results> directly).	1006	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
697		1007
698	=back	1008	=back
699		1009
700	=cut	1010	=cut
701		1011
702	#############################################################################	1012	#############################################################################
703	# object support	1013	# object support
		1014
		1015	sub _object_equal($$);
		1016	sub _object_equal($$) {
		1017	my ($a, $b) = @_;
		1018
		1019	return 0 unless (ref $a) eq (ref $b);
		1020
		1021	if ("HASH" eq ref $a) {
		1022	my @ka = keys %$a;
		1023	my @kb = keys %$b;
		1024
		1025	return 0 if @ka != @kb;
		1026
		1027	for (0 .. $#ka) {
		1028	return 0 unless $ka[$_] eq $kb[$_];
		1029	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1030	}
		1031
		1032	} elsif ("ARRAY" eq ref $a) {
		1033
		1034	return 0 if @$a != @$b;
		1035
		1036	for (0 .. $#$a) {
		1037	return 0 unless _object_equal $a->[$_], $b->[$_];
		1038	}
		1039
		1040	} elsif ($a ne $b) {
		1041	return 0;
		1042	}
		1043
		1044	1
		1045	}
		1046
		1047	our $SLOW_MERGES;#d#
		1048	sub _can_merge {
		1049	my ($ob1, $ob2) = @_;
		1050
		1051	++$SLOW_MERGES;#d#
		1052
		1053	# we do the slow way here
		1054	return _object_equal $ob1, $ob2
		1055	}
704		1056
705	sub reattach {	1057	sub reattach {
706	# basically do the same as instantiate, without calling instantiate	1058	# basically do the same as instantiate, without calling instantiate
707	my ($obj) = @_;	1059	my ($obj) = @_;
708		1060
…		…
729	cf::attachable->attach (	1081	cf::attachable->attach (
730	prio => -1000000,	1082	prio => -1000000,
731	on_instantiate => sub {	1083	on_instantiate => sub {
732	my ($obj, $data) = @_;	1084	my ($obj, $data) = @_;
733		1085
734	$data = from_json $data;	1086	$data = decode_json $data;
735		1087
736	for (@$data) {	1088	for (@$data) {
737	my ($name, $args) = @$_;	1089	my ($name, $args) = @$_;
738		1090
739	$obj->attach ($name, %{$args || {} });	1091	$obj->attach ($name, %{$args || {} });
…		…
755	sub object_freezer_save {	1107	sub object_freezer_save {
756	my ($filename, $rdata, $objs) = @_;	1108	my ($filename, $rdata, $objs) = @_;
757		1109
758	sync_job {	1110	sync_job {
759	if (length $$rdata) {	1111	if (length $$rdata) {
		1112	utf8::decode (my $decname = $filename);
760	warn sprintf "saving %s (%d,%d)\n",	1113	warn sprintf "saving %s (%d,%d)\n",
761	$filename, length $$rdata, scalar @$objs;	1114	$decname, length $$rdata, scalar @$objs;
762		1115
763	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1116	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
764	chmod SAVE_MODE, $fh;	1117	chmod SAVE_MODE, $fh;
765	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1118	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
766	aio_fsync $fh if $cf::USE_FSYNC;	1119	aio_fsync $fh if $cf::USE_FSYNC;
767	close $fh;	1120	close $fh;
768		1121
769	if (@$objs) {	1122	if (@$objs) {
770	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1123	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
771	chmod SAVE_MODE, $fh;	1124	chmod SAVE_MODE, $fh;
772	my $data = Storable::nfreeze { version => 1, objs => $objs };	1125	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
773	aio_write $fh, 0, (length $data), $data, 0;	1126	aio_write $fh, 0, (length $data), $data, 0;
774	aio_fsync $fh if $cf::USE_FSYNC;	1127	aio_fsync $fh if $cf::USE_FSYNC;
775	close $fh;	1128	close $fh;
776	aio_rename "$filename.pst~", "$filename.pst";	1129	aio_rename "$filename.pst~", "$filename.pst";
777	}	1130	}
…		…
785	}	1138	}
786	} else {	1139	} else {
787	aio_unlink $filename;	1140	aio_unlink $filename;
788	aio_unlink "$filename.pst";	1141	aio_unlink "$filename.pst";
789	}	1142	}
790	}	1143	};
791	}	1144	}
792		1145
793	sub object_freezer_as_string {	1146	sub object_freezer_as_string {
794	my ($rdata, $objs) = @_;	1147	my ($rdata, $objs) = @_;
795		1148
…		…
807	or return;	1160	or return;
808		1161
809	unless (aio_stat "$filename.pst") {	1162	unless (aio_stat "$filename.pst") {
810	(aio_load "$filename.pst", $av) >= 0	1163	(aio_load "$filename.pst", $av) >= 0
811	or return;	1164	or return;
		1165
812	$av = eval { (Storable::thaw $av)->{objs} };	1166	my $st = eval { Coro::Storable::thaw $av };
		1167	$av = $st->{objs};
813	}	1168	}
814		1169
		1170	utf8::decode (my $decname = $filename);
815	warn sprintf "loading %s (%d)\n",	1171	warn sprintf "loading %s (%d,%d)\n",
816	$filename, length $data, scalar @{$av || []};#d#	1172	$decname, length $data, scalar @{$av || []};
		1173
817	return ($data, $av);	1174	($data, $av)
818	}	1175	}
		1176
		1177	=head2 COMMAND CALLBACKS
		1178
		1179	=over 4
		1180
		1181	=cut
819		1182
820	#############################################################################	1183	#############################################################################
821	# command handling &c	1184	# command handling &c
822		1185
823	=item cf::register_command $name => \&callback($ob,$args);	1186	=item cf::register_command $name => \&callback($ob,$args);
…		…
836	push @{ $COMMAND{$name} }, [$caller, $cb];	1199	push @{ $COMMAND{$name} }, [$caller, $cb];
837	}	1200	}
838		1201
839	=item cf::register_extcmd $name => \&callback($pl,$packet);	1202	=item cf::register_extcmd $name => \&callback($pl,$packet);
840		1203
841	Register a callbackf ro execution when the client sends an extcmd packet.	1204	Register a callback for execution when the client sends an (synchronous)
		1205	extcmd packet. Ext commands will be processed in the order they are
		1206	received by the server, like other user commands. The first argument is
		1207	the logged-in player. Ext commands can only be processed after a player
		1208	has logged in successfully.
842		1209
843	If the callback returns something, it is sent back as if reply was being	1210	If the callback returns something, it is sent back as if reply was being
844	called.	1211	called.
845		1212
		1213	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1214
		1215	Register a callback for execution when the client sends an (asynchronous)
		1216	exticmd packet. Exti commands are processed by the server as soon as they
		1217	are received, i.e. out of order w.r.t. other commands. The first argument
		1218	is a client socket. Exti commands can be received anytime, even before
		1219	log-in.
		1220
		1221	If the callback returns something, it is sent back as if reply was being
		1222	called.
		1223
846	=cut	1224	=cut
847		1225
848	sub register_extcmd {	1226	sub register_extcmd {
849	my ($name, $cb) = @_;	1227	my ($name, $cb) = @_;
850		1228
851	$EXTCMD{$name} = $cb;	1229	$EXTCMD{$name} = $cb;
		1230	}
		1231
		1232	sub register_exticmd {
		1233	my ($name, $cb) = @_;
		1234
		1235	$EXTICMD{$name} = $cb;
852	}	1236	}
853		1237
854	cf::player->attach (	1238	cf::player->attach (
855	on_command => sub {	1239	on_command => sub {
856	my ($pl, $name, $params) = @_;	1240	my ($pl, $name, $params) = @_;
…		…
865	cf::override;	1249	cf::override;
866	},	1250	},
867	on_extcmd => sub {	1251	on_extcmd => sub {
868	my ($pl, $buf) = @_;	1252	my ($pl, $buf) = @_;
869		1253
870	my $msg = eval { from_json $buf };	1254	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
871		1255
872	if (ref $msg) {	1256	if (ref $msg) {
		1257	my ($type, $reply, @payload) =
		1258	"ARRAY" eq ref $msg
		1259	? @$msg
		1260	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1261
		1262	my @reply;
		1263
873	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1264	if (my $cb = $EXTCMD{$type}) {
874	if (my %reply = $cb->($pl, $msg)) {	1265	@reply = $cb->($pl, @payload);
875	$pl->ext_reply ($msg->{msgid}, %reply);
876	}
877	}	1266	}
		1267
		1268	$pl->ext_reply ($reply, @reply)
		1269	if $reply;
		1270
878	} else {	1271	} else {
879	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1272	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
880	}	1273	}
881		1274
882	cf::override;	1275	cf::override;
883	},	1276	},
884	);	1277	);
885		1278
886	sub load_extension {
887	my ($path) = @_;
888
889	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
890	my $base = $1;
891	my $pkg = $1;
892	$pkg =~ s/[^[:word:]]/_/g;
893	$pkg = "ext::$pkg";
894
895	warn "... loading '$path' into '$pkg'\n";
896
897	open my $fh, "<:utf8", $path
898	or die "$path: $!";
899
900	my $source =
901	"package $pkg; use strict; use utf8;\n"
902	. "#line 1 \"$path\"\n{\n"
903	. (do { local $/; <$fh> })
904	. "\n};\n1";
905
906	unless (eval $source) {
907	my $msg = $@ ? "$path: $@\n"
908	: "extension disabled.\n";
909	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
910	warn $@;
911	warn "mandatory extension failed to load, exiting.\n";
912	exit 1;
913	}
914	die $@;
915	}
916
917	push @EXTS, $pkg;
918	}
919
920	sub load_extensions {	1279	sub load_extensions {
		1280	cf::sync_job {
		1281	my %todo;
		1282
921	for my $ext (<$LIBDIR/*.ext>) {	1283	for my $path (<$LIBDIR/*.ext>) {
922	next unless -r $ext;	1284	next unless -r $path;
923	eval {	1285
924	load_extension $ext;	1286	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1287	my $base = $1;
		1288	my $pkg = $1;
		1289	$pkg =~ s/[^[:word:]]/_/g;
		1290	$pkg = "ext::$pkg";
		1291
		1292	open my $fh, "<:utf8", $path
		1293	or die "$path: $!";
		1294
		1295	my $source = do { local $/; <$fh> };
		1296
		1297	my %ext = (
		1298	path => $path,
		1299	base => $base,
		1300	pkg => $pkg,
		1301	);
		1302
		1303	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1304	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1305
		1306	$ext{source} =
		1307	"package $pkg; use strict; use utf8;\n"
		1308	. "#line 1 \"$path\"\n{\n"
		1309	. $source
		1310	. "\n};\n1";
		1311
		1312	$todo{$base} = \%ext;
		1313	}
		1314
		1315	my %done;
		1316	while (%todo) {
		1317	my $progress;
		1318
		1319	while (my ($k, $v) = each %todo) {
		1320	for (split /,\s*/, $v->{meta}{depends}) {
		1321	goto skip
		1322	unless exists $done{$_};
		1323	}
		1324
		1325	warn "... loading '$k' into '$v->{pkg}'\n";
		1326
		1327	unless (eval $v->{source}) {
		1328	my $msg = $@ ? "$v->{path}: $@\n"
		1329	: "$v->{base}: extension inactive.\n";
		1330
		1331	if (exists $v->{meta}{mandatory}) {
		1332	warn $msg;
		1333	cf::cleanup "mandatory extension failed to load, exiting.";
		1334	}
		1335
		1336	warn $msg;
		1337	}
		1338
		1339	$done{$k} = delete $todo{$k};
		1340	push @EXTS, $v->{pkg};
		1341	$progress = 1;
925	1	1342	}
926	} or warn "$ext not loaded: $@";	1343
		1344	skip:
		1345	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1346	unless $progress;
		1347	}
927	}	1348	};
928	}	1349	}
929		1350
930	#############################################################################	1351	#############################################################################
931		1352
		1353	=back
		1354
932	=head2 CORE EXTENSIONS	1355	=head2 CORE EXTENSIONS
933		1356
934	Functions and methods that extend core crossfire objects.	1357	Functions and methods that extend core crossfire objects.
935		1358
936	=cut	1359	=cut
…		…
941		1364
942	=head3 cf::player	1365	=head3 cf::player
943		1366
944	=over 4	1367	=over 4
945		1368
		1369	=item cf::player::num_playing
		1370
		1371	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1372
		1373	=cut
		1374
		1375	sub num_playing {
		1376	scalar grep
		1377	$_->ob->map
		1378	&& !$_->hidden
		1379	&& !$_->ob->flag (cf::FLAG_WIZ),
		1380	cf::player::list
		1381	}
		1382
946	=item cf::player::find $login	1383	=item cf::player::find $login
947		1384
948	Returns the given player object, loading it if necessary (might block).	1385	Returns the given player object, loading it if necessary (might block).
949		1386
950	=cut	1387	=cut
951		1388
952	sub playerdir($) {	1389	sub playerdir($) {
953	cf::localdir	1390	"$PLAYERDIR/"
954	. "/"
955	. cf::playerdir
956	. "/"
957	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1391	. (ref $_[0] ? $_[0]->ob->name : $_[0])
958	}	1392	}
959		1393
960	sub path($) {	1394	sub path($) {
961	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1395	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
962		1396
963	(playerdir $login) . "/$login.pl"	1397	(playerdir $login) . "/playerdata"
964	}	1398	}
965		1399
966	sub find_active($) {	1400	sub find_active($) {
967	$cf::PLAYER{$_[0]}	1401	$cf::PLAYER{$_[0]}
968	and $cf::PLAYER{$_[0]}->active	1402	and $cf::PLAYER{$_[0]}->active
…		…
981	my $login = $_[0];	1415	my $login = $_[0];
982		1416
983	my $guard = cf::lock_acquire "user_find:$login";	1417	my $guard = cf::lock_acquire "user_find:$login";
984		1418
985	$cf::PLAYER{$_[0]} || do {	1419	$cf::PLAYER{$_[0]} || do {
986	my $pl = load_pl path $login	1420	# rename old playerfiles to new ones
		1421	#TODO: remove when no longer required
		1422	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1423	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1424	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1425	aio_unlink +(playerdir $login) . "/$login.pl";
		1426
		1427	my $f = new_from_file cf::object::thawer path $login
987	or return;	1428	or return;
		1429
		1430	my $pl = cf::player::load_pl $f
		1431	or return;
		1432	local $cf::PLAYER_LOADING{$login} = $pl;
		1433	$f->resolve_delayed_derefs;
988	$cf::PLAYER{$login} = $pl	1434	$cf::PLAYER{$login} = $pl
989	}	1435	}
990	}	1436	}
991	}	1437	}
992		1438
…		…
1002		1448
1003	aio_mkdir playerdir $pl, 0770;	1449	aio_mkdir playerdir $pl, 0770;
1004	$pl->{last_save} = $cf::RUNTIME;	1450	$pl->{last_save} = $cf::RUNTIME;
1005		1451
1006	$pl->save_pl ($path);	1452	$pl->save_pl ($path);
1007	Coro::cede;	1453	cf::cede_to_tick;
1008	}	1454	}
1009		1455
1010	sub new($) {	1456	sub new($) {
1011	my ($login) = @_;	1457	my ($login) = @_;
1012		1458
…		…
1018	$cf::PLAYER{$login} = $self;	1464	$cf::PLAYER{$login} = $self;
1019		1465
1020	$self	1466	$self
1021	}	1467	}
1022		1468
		1469	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1470
		1471	=cut
		1472
		1473	sub send_msg {
		1474	my $ns = shift->ns
		1475	or return;
		1476	$ns->send_msg (@_);
		1477	}
		1478
1023	=item $pl->quit_character	1479	=item $pl->quit_character
1024		1480
1025	Nukes the player without looking back. If logged in, the connection will	1481	Nukes the player without looking back. If logged in, the connection will
1026	be destroyed. May block for a long time.	1482	be destroyed. May block for a long time.
1027		1483
1028	=cut	1484	=cut
1029		1485
1030	sub quit_character {	1486	sub quit_character {
1031	my ($pl) = @_;	1487	my ($pl) = @_;
		1488
		1489	my $name = $pl->ob->name;
1032		1490
1033	$pl->{deny_save} = 1;	1491	$pl->{deny_save} = 1;
1034	$pl->password ("*"); # this should lock out the player until we nuked the dir	1492	$pl->password ("*"); # this should lock out the player until we nuked the dir
1035		1493
1036	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1494	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1041	my $path = playerdir $pl;	1499	my $path = playerdir $pl;
1042	my $temp = "$path~$cf::RUNTIME~deleting~";	1500	my $temp = "$path~$cf::RUNTIME~deleting~";
1043	aio_rename $path, $temp;	1501	aio_rename $path, $temp;
1044	delete $cf::PLAYER{$pl->ob->name};	1502	delete $cf::PLAYER{$pl->ob->name};
1045	$pl->destroy;	1503	$pl->destroy;
		1504
		1505	my $prefix = qr<^~\Q$name\E/>;
		1506
		1507	# nuke player maps
		1508	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1509
1046	IO::AIO::aio_rmtree $temp;	1510	IO::AIO::aio_rmtree $temp;
		1511	}
		1512
		1513	=item $pl->kick
		1514
		1515	Kicks a player out of the game. This destroys the connection.
		1516
		1517	=cut
		1518
		1519	sub kick {
		1520	my ($pl, $kicker) = @_;
		1521
		1522	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1523	$pl->killer ("kicked");
		1524	$pl->ns->destroy;
1047	}	1525	}
1048		1526
1049	=item cf::player::list_logins	1527	=item cf::player::list_logins
1050		1528
1051	Returns am arrayref of all valid playernames in the system, can take a	1529	Returns am arrayref of all valid playernames in the system, can take a
1052	while and may block, so not sync_job-capable, ever.	1530	while and may block, so not sync_job-capable, ever.
1053		1531
1054	=cut	1532	=cut
1055		1533
1056	sub list_logins {	1534	sub list_logins {
1057	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1535	my $dirs = aio_readdir $PLAYERDIR
1058	or return [];	1536	or return [];
1059		1537
1060	my @logins;	1538	my @logins;
1061		1539
1062	for my $login (@$dirs) {	1540	for my $login (@$dirs) {
		1541	my $path = path $login;
		1542
		1543	# a .pst is a dead give-away for a valid player
		1544	unless (-e "$path.pst") {
1063	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1545	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1064	aio_read $fh, 0, 512, my $buf, 0 or next;	1546	aio_read $fh, 0, 512, my $buf, 0 or next;
1065	$buf !~ /^password -------------$/m or next; # official not-valid tag	1547	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1548	}
1066		1549
1067	utf8::decode $login;	1550	utf8::decode $login;
1068	push @logins, $login;	1551	push @logins, $login;
1069	}	1552	}
1070		1553
…		…
1097	}	1580	}
1098		1581
1099	\@paths	1582	\@paths
1100	}	1583	}
1101		1584
		1585	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1586
		1587	Expand crossfire pod fragments into protocol xml.
		1588
		1589	=cut
		1590
		1591	use re 'eval';
		1592
		1593	my $group;
		1594	my $interior; $interior = qr{
		1595	# match a pod interior sequence sans C<< >>
		1596	(?:
		1597	\ (.*?)\ (?{ $group = $^N })
		1598	| < (??{$interior}) >
		1599	)
		1600	}x;
		1601
		1602	sub expand_cfpod {
		1603	my ($self, $pod) = @_;
		1604
		1605	my $xml;
		1606
		1607	while () {
		1608	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1609	$group = $1;
		1610
		1611	$group =~ s/&/&amp;/g;
		1612	$group =~ s/</&lt;/g;
		1613
		1614	$xml .= $group;
		1615	} elsif ($pod =~ m%\G
		1616	([BCGHITU])
		1617	<
		1618	(?:
		1619	([^<>]*) (?{ $group = $^N })
		1620	| < $interior >
		1621	)
		1622	>
		1623	%gcsx
		1624	) {
		1625	my ($code, $data) = ($1, $group);
		1626
		1627	if ($code eq "B") {
		1628	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1629	} elsif ($code eq "I") {
		1630	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1631	} elsif ($code eq "U") {
		1632	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1633	} elsif ($code eq "C") {
		1634	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1635	} elsif ($code eq "T") {
		1636	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1637	} elsif ($code eq "G") {
		1638	my ($male, $female) = split /\|/, $data;
		1639	$data = $self->gender ? $female : $male;
		1640	$xml .= expand_cfpod ($self, $data);
		1641	} elsif ($code eq "H") {
		1642	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1643	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1644	"")
		1645	[$self->{hintmode}];
		1646	} else {
		1647	$xml .= "error processing '$code($data)' directive";
		1648	}
		1649	} else {
		1650	if ($pod =~ /\G(.+)/) {
		1651	warn "parse error while expanding $pod (at $1)";
		1652	}
		1653	last;
		1654	}
		1655	}
		1656
		1657	for ($xml) {
		1658	# create single paragraphs (very hackish)
		1659	s/(?<=\S)\n(?=\w)/ /g;
		1660
		1661	# compress some whitespace
		1662	s/\s+\n/\n/g; # ws line-ends
		1663	s/\n\n+/\n/g; # double lines
		1664	s/^\n+//; # beginning lines
		1665	s/\n+$//; # ending lines
		1666	}
		1667
		1668	$xml
		1669	}
		1670
		1671	no re 'eval';
		1672
		1673	sub hintmode {
		1674	$_[0]{hintmode} = $_[1] if @_ > 1;
		1675	$_[0]{hintmode}
		1676	}
		1677
1102	=item $player->ext_reply ($msgid, $msgtype, %msg)	1678	=item $player->ext_reply ($msgid, @msg)
1103		1679
1104	Sends an ext reply to the player.	1680	Sends an ext reply to the player.
1105		1681
1106	=cut	1682	=cut
1107		1683
1108	sub ext_reply($$$%) {	1684	sub ext_reply($$@) {
1109	my ($self, $id, %msg) = @_;	1685	my ($self, $id, @msg) = @_;
1110		1686
1111	$msg{msgid} = $id;	1687	$self->ns->ext_reply ($id, @msg)
1112
1113	$self->send ("ext " . cf::to_json \%msg);
1114	}	1688	}
1115		1689
1116	package cf;	1690	=item $player->ext_msg ($type, @msg)
		1691
		1692	Sends an ext event to the client.
		1693
		1694	=cut
		1695
		1696	sub ext_msg($$@) {
		1697	my ($self, $type, @msg) = @_;
		1698
		1699	$self->ns->ext_msg ($type, @msg);
		1700	}
		1701
		1702	=head3 cf::region
		1703
		1704	=over 4
		1705
		1706	=cut
		1707
		1708	package cf::region;
		1709
		1710	=item cf::region::find_by_path $path
		1711
		1712	Tries to decuce the likely region for a map knowing only its path.
		1713
		1714	=cut
		1715
		1716	sub find_by_path($) {
		1717	my ($path) = @_;
		1718
		1719	my ($match, $specificity);
		1720
		1721	for my $region (list) {
		1722	if ($region->{match} && $path =~ $region->{match}) {
		1723	($match, $specificity) = ($region, $region->specificity)
		1724	if $region->specificity > $specificity;
		1725	}
		1726	}
		1727
		1728	$match
		1729	}
1117		1730
1118	=back	1731	=back
1119
1120		1732
1121	=head3 cf::map	1733	=head3 cf::map
1122		1734
1123	=over 4	1735	=over 4
1124		1736
…		…
1179	my ($self, $merge) = @_;	1791	my ($self, $merge) = @_;
1180		1792
1181	# we have to keep some variables in memory intact	1793	# we have to keep some variables in memory intact
1182	local $self->{path};	1794	local $self->{path};
1183	local $self->{load_path};	1795	local $self->{load_path};
1184	local $self->{deny_save};
1185	local $self->{deny_reset};
1186		1796
1187	$self->SUPER::thawer_merge ($merge);	1797	$self->SUPER::thawer_merge ($merge);
1188	}	1798	}
1189		1799
1190	sub normalise {	1800	sub normalise {
…		…
1237	$self->init; # pass $1 etc.	1847	$self->init; # pass $1 etc.
1238	return $self;	1848	return $self;
1239	}	1849	}
1240	}	1850	}
1241		1851
1242	Carp::carp "unable to resolve path '$path' (base '$base').";	1852	Carp::cluck "unable to resolve path '$path' (base '$base').";
1243	()	1853	()
1244	}	1854	}
1245		1855
1246	sub init {	1856	sub init {
1247	my ($self) = @_;	1857	my ($self) = @_;
…		…
1262		1872
1263	# the original (read-only) location	1873	# the original (read-only) location
1264	sub load_path {	1874	sub load_path {
1265	my ($self) = @_;	1875	my ($self) = @_;
1266		1876
1267	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1877	"$MAPDIR/$self->{path}.map"
1268	}	1878	}
1269		1879
1270	# the temporary/swap location	1880	# the temporary/swap location
1271	sub save_path {	1881	sub save_path {
1272	my ($self) = @_;	1882	my ($self) = @_;
1273		1883
1274	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1884	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1275	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1885	"$TMPDIR/$path.map"
1276	}	1886	}
1277		1887
1278	# the unique path, undef == no special unique path	1888	# the unique path, undef == no special unique path
1279	sub uniq_path {	1889	sub uniq_path {
1280	my ($self) = @_;	1890	my ($self) = @_;
1281		1891
1282	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1892	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1283	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1893	"$UNIQUEDIR/$path"
1284	}	1894	}
1285		1895
1286	# and all this just because we cannot iterate over	1896	# and all this just because we cannot iterate over
1287	# all maps in C++...	1897	# all maps in C++...
1288	sub change_all_map_light {	1898	sub change_all_map_light {
…		…
1290		1900
1291	$_->change_map_light ($change)	1901	$_->change_map_light ($change)
1292	for grep $_->outdoor, values %cf::MAP;	1902	for grep $_->outdoor, values %cf::MAP;
1293	}	1903	}
1294		1904
		1905	sub decay_objects {
		1906	my ($self) = @_;
		1907
		1908	return if $self->{deny_reset};
		1909
		1910	$self->do_decay_objects;
		1911	}
		1912
1295	sub unlink_save {	1913	sub unlink_save {
1296	my ($self) = @_;	1914	my ($self) = @_;
1297		1915
1298	utf8::encode (my $save = $self->save_path);	1916	utf8::encode (my $save = $self->save_path);
1299	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1917	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1302		1920
1303	sub load_header_from($) {	1921	sub load_header_from($) {
1304	my ($self, $path) = @_;	1922	my ($self, $path) = @_;
1305		1923
1306	utf8::encode $path;	1924	utf8::encode $path;
1307	#aio_open $path, O_RDONLY, 0	1925	my $f = new_from_file cf::object::thawer $path
1308	# or return;
1309
1310	$self->_load_header ($path)
1311	or return;	1926	or return;
		1927
		1928	$self->_load_header ($f)
		1929	or return;
		1930
		1931	local $MAP_LOADING{$self->{path}} = $self;
		1932	$f->resolve_delayed_derefs;
1312		1933
1313	$self->{load_path} = $path;	1934	$self->{load_path} = $path;
1314		1935
1315	1	1936	1
1316	}	1937	}
…		…
1355	$self->load_header_orig	1976	$self->load_header_orig
1356	or return;	1977	or return;
1357	$self->prepare_orig;	1978	$self->prepare_orig;
1358	}	1979	}
1359		1980
		1981	$self->{deny_reset} = 1
		1982	if $self->no_reset;
		1983
		1984	$self->default_region (cf::region::find_by_path $self->{path})
		1985	unless $self->default_region;
		1986
1360	1	1987	1
1361	}	1988	}
1362		1989
1363	sub find;	1990	sub find;
1364	sub find {	1991	sub find {
1365	my ($path, $origin) = @_;	1992	my ($path, $origin) = @_;
1366		1993
1367	$path = normalise $path, $origin && $origin->path;	1994	$path = normalise $path, $origin && $origin->path;
1368		1995
		1996	cf::lock_wait "map_data:$path";#d#remove
1369	cf::lock_wait "map_find:$path";	1997	cf::lock_wait "map_find:$path";
1370		1998
1371	$cf::MAP{$path} || do {	1999	$cf::MAP{$path} || do {
1372	my $guard = cf::lock_acquire "map_find:$path";	2000	my $guard1 = cf::lock_acquire "map_find:$path";
		2001	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
		2002
1373	my $map = new_from_path cf::map $path	2003	my $map = new_from_path cf::map $path
1374	or return;	2004	or return;
1375		2005
1376	$map->{last_save} = $cf::RUNTIME;	2006	$map->{last_save} = $cf::RUNTIME;
1377		2007
1378	$map->load_header	2008	$map->load_header
1379	or return;	2009	or return;
1380		2010
1381	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	2011	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1382	# doing this can freeze the server in a sync job, obviously	2012	# doing this can freeze the server in a sync job, obviously
1383	#$cf::WAIT_FOR_TICK->wait;	2013	#$cf::WAIT_FOR_TICK->wait;
		2014	undef $guard1;
		2015	undef $guard2;
1384	$map->reset;	2016	$map->reset;
1385	undef $guard;
1386	return find $path;	2017	return find $path;
1387	}	2018	}
1388		2019
1389	$cf::MAP{$path} = $map	2020	$cf::MAP{$path} = $map
1390	}	2021	}
…		…
1397	my ($self) = @_;	2028	my ($self) = @_;
1398		2029
1399	local $self->{deny_reset} = 1; # loading can take a long time	2030	local $self->{deny_reset} = 1; # loading can take a long time
1400		2031
1401	my $path = $self->{path};	2032	my $path = $self->{path};
		2033
		2034	{
1402	my $guard = cf::lock_acquire "map_load:$path";	2035	my $guard = cf::lock_acquire "map_data:$path";
1403		2036
		2037	return unless $self->valid;
1404	return if $self->in_memory != cf::MAP_SWAPPED;	2038	return unless $self->in_memory == cf::MAP_SWAPPED;
1405		2039
1406	$self->in_memory (cf::MAP_LOADING);	2040	$self->in_memory (cf::MAP_LOADING);
1407		2041
1408	$self->alloc;	2042	$self->alloc;
1409		2043
1410	$self->pre_load;	2044	$self->pre_load;
		2045	cf::cede_to_tick;
1411		2046
1412	$self->_load_objects ($self->{load_path}, 1)	2047	my $f = new_from_file cf::object::thawer $self->{load_path};
		2048	$f->skip_block;
		2049	$self->_load_objects ($f)
1413	or return;	2050	or return;
1414		2051
1415	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2052	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1416	if delete $self->{load_original};	2053	if delete $self->{load_original};
1417		2054
1418	if (my $uniq = $self->uniq_path) {	2055	if (my $uniq = $self->uniq_path) {
1419	utf8::encode $uniq;	2056	utf8::encode $uniq;
1420	if (aio_open $uniq, O_RDONLY, 0) {	2057	unless (aio_stat $uniq) {
		2058	if (my $f = new_from_file cf::object::thawer $uniq) {
1421	$self->clear_unique_items;	2059	$self->clear_unique_items;
1422	$self->_load_objects ($uniq, 0);	2060	$self->_load_objects ($f);
		2061	$f->resolve_delayed_derefs;
		2062	}
1423	}	2063	}
1424	}	2064	}
1425		2065
1426	Coro::cede;	2066	$f->resolve_delayed_derefs;
1427		2067
		2068	cf::cede_to_tick;
1428	# now do the right thing for maps	2069	# now do the right thing for maps
1429	$self->link_multipart_objects;	2070	$self->link_multipart_objects;
1430
1431	unless ($self->{deny_activate}) {
1432	$self->decay_objects;
1433	$self->fix_auto_apply;
1434	$self->update_buttons;
1435	Coro::cede;
1436	$self->set_darkness_map;
1437	$self->difficulty ($self->estimate_difficulty)	2071	$self->difficulty ($self->estimate_difficulty)
1438	unless $self->difficulty;	2072	unless $self->difficulty;
1439	Coro::cede;	2073	cf::cede_to_tick;
		2074
		2075	unless ($self->{deny_activate}) {
		2076	$self->decay_objects;
		2077	$self->fix_auto_apply;
		2078	$self->update_buttons;
		2079	cf::cede_to_tick;
		2080	$self->set_darkness_map;
		2081	cf::cede_to_tick;
1440	$self->activate;	2082	$self->activate;
		2083	}
		2084
		2085	$self->{last_save} = $cf::RUNTIME;
		2086	$self->last_access ($cf::RUNTIME);
		2087
		2088	$self->in_memory (cf::MAP_IN_MEMORY);
1441	}	2089	}
1442		2090
1443	$self->post_load;	2091	$self->post_load;
1444
1445	$self->in_memory (cf::MAP_IN_MEMORY);
1446	}	2092	}
1447		2093
1448	sub customise_for {	2094	sub customise_for {
1449	my ($self, $ob) = @_;	2095	my ($self, $ob) = @_;
1450		2096
1451	return find "~" . $ob->name . "/" . $self->{path}	2097	return find "~" . $ob->name . "/" . $self->{path}
1452	if $self->per_player;	2098	if $self->per_player;
1453		2099
		2100	# return find "?party/" . $ob->name . "/" . $self->{path}
		2101	# if $self->per_party;
		2102
1454	$self	2103	$self
1455	}	2104	}
1456		2105
1457	# find and load all maps in the 3x3 area around a map	2106	# find and load all maps in the 3x3 area around a map
1458	sub load_diag {	2107	sub load_neighbours {
1459	my ($map) = @_;	2108	my ($map) = @_;
1460		2109
1461	my @diag; # diagonal neighbours	2110	my @neigh; # diagonal neighbours
1462		2111
1463	for (0 .. 3) {	2112	for (0 .. 3) {
1464	my $neigh = $map->tile_path ($_)	2113	my $neigh = $map->tile_path ($_)
1465	or next;	2114	or next;
1466	$neigh = find $neigh, $map	2115	$neigh = find $neigh, $map
1467	or next;	2116	or next;
1468	$neigh->load;	2117	$neigh->load;
1469		2118
		2119	push @neigh,
1470	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2120	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1471	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2121	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1472	}	2122	}
1473		2123
1474	for (@diag) {	2124	for (grep defined $_->[0], @neigh) {
		2125	my ($path, $origin) = @$_;
1475	my $neigh = find @$_	2126	my $neigh = find $path, $origin
1476	or next;	2127	or next;
1477	$neigh->load;	2128	$neigh->load;
1478	}	2129	}
1479	}	2130	}
1480		2131
…		…
1485	}	2136	}
1486		2137
1487	sub do_load_sync {	2138	sub do_load_sync {
1488	my ($map) = @_;	2139	my ($map) = @_;
1489		2140
		2141	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2142	if $Coro::current == $Coro::main;
		2143
1490	cf::sync_job { $map->load };	2144	cf::sync_job { $map->load };
1491	}	2145	}
1492		2146
1493	our %MAP_PREFETCH;	2147	our %MAP_PREFETCH;
1494	our $MAP_PREFETCHER = undef;	2148	our $MAP_PREFETCHER = undef;
1495		2149
1496	sub find_async {	2150	sub find_async {
1497	my ($path, $origin) = @_;	2151	my ($path, $origin, $load) = @_;
1498		2152
1499	$path = normalise $path, $origin && $origin->{path};	2153	$path = normalise $path, $origin && $origin->{path};
1500		2154
1501	if (my $map = $cf::MAP{$path}) {	2155	if (my $map = $cf::MAP{$path}) {
1502	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2156	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
1503	}	2157	}
1504		2158
1505	undef $MAP_PREFETCH{$path};	2159	$MAP_PREFETCH{$path} |= $load;
		2160
1506	$MAP_PREFETCHER ||= cf::async {	2161	$MAP_PREFETCHER ||= cf::async {
		2162	$Coro::current->{desc} = "map prefetcher";
		2163
1507	while (%MAP_PREFETCH) {	2164	while (%MAP_PREFETCH) {
1508	for my $path (keys %MAP_PREFETCH) {	2165	while (my ($k, $v) = each %MAP_PREFETCH) {
1509	my $map = find $path	2166	if (my $map = find $k) {
1510	or next;
1511	$map->load;	2167	$map->load if $v;
		2168	}
1512		2169
1513	delete $MAP_PREFETCH{$path};	2170	delete $MAP_PREFETCH{$k};
1514	}	2171	}
1515	}	2172	}
1516	undef $MAP_PREFETCHER;	2173	undef $MAP_PREFETCHER;
1517	};	2174	};
1518	$MAP_PREFETCHER->prio (6);	2175	$MAP_PREFETCHER->prio (6);
…		…
1521	}	2178	}
1522		2179
1523	sub save {	2180	sub save {
1524	my ($self) = @_;	2181	my ($self) = @_;
1525		2182
1526	my $lock = cf::lock_acquire "map_data:" . $self->path;	2183	my $lock = cf::lock_acquire "map_data:$self->{path}";
1527		2184
1528	$self->{last_save} = $cf::RUNTIME;	2185	$self->{last_save} = $cf::RUNTIME;
1529		2186
1530	return unless $self->dirty;	2187	return unless $self->dirty;
1531		2188
…		…
1537	return if $self->{deny_save};	2194	return if $self->{deny_save};
1538		2195
1539	local $self->{last_access} = $self->last_access;#d#	2196	local $self->{last_access} = $self->last_access;#d#
1540		2197
1541	cf::async {	2198	cf::async {
		2199	$Coro::current->{desc} = "map player save";
1542	$_->contr->save for $self->players;	2200	$_->contr->save for $self->players;
1543	};	2201	};
1544		2202
1545	if ($uniq) {	2203	if ($uniq) {
1546	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2204	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
…		…
1554	my ($self) = @_;	2212	my ($self) = @_;
1555		2213
1556	# save first because save cedes	2214	# save first because save cedes
1557	$self->save;	2215	$self->save;
1558		2216
1559	my $lock = cf::lock_acquire "map_data:" . $self->path;	2217	my $lock = cf::lock_acquire "map_data:$self->{path}";
1560		2218
1561	return if $self->players;	2219	return if $self->players;
1562	return if $self->in_memory != cf::MAP_IN_MEMORY;	2220	return if $self->in_memory != cf::MAP_IN_MEMORY;
1563	return if $self->{deny_save};	2221	return if $self->{deny_save};
1564		2222
		2223	$self->in_memory (cf::MAP_SWAPPED);
		2224
		2225	$self->deactivate;
		2226	$_->clear_links_to ($self) for values %cf::MAP;
1565	$self->clear;	2227	$self->clear;
1566	$self->in_memory (cf::MAP_SWAPPED);
1567	}	2228	}
1568		2229
1569	sub reset_at {	2230	sub reset_at {
1570	my ($self) = @_;	2231	my ($self) = @_;
1571		2232
1572	# TODO: safety, remove and allow resettable per-player maps	2233	# TODO: safety, remove and allow resettable per-player maps
1573	return 1e99 if $self->isa ("ext::map_per_player");#d#
1574	return 1e99 if $self->{deny_reset};	2234	return 1e99 if $self->{deny_reset};
1575		2235
1576	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2236	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1577	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2237	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1578		2238
…		…
1589	my ($self) = @_;	2249	my ($self) = @_;
1590		2250
1591	my $lock = cf::lock_acquire "map_data:$self->{path}";	2251	my $lock = cf::lock_acquire "map_data:$self->{path}";
1592		2252
1593	return if $self->players;	2253	return if $self->players;
1594	return if $self->isa ("ext::map_per_player");#d#
1595		2254
1596	warn "resetting map ", $self->path;#d#	2255	warn "resetting map ", $self->path;
1597		2256
1598	$self->in_memory (cf::MAP_SWAPPED);	2257	$self->in_memory (cf::MAP_SWAPPED);
1599		2258
1600	# need to save uniques path	2259	# need to save uniques path
1601	unless ($self->{deny_save}) {	2260	unless ($self->{deny_save}) {
…		…
1605	if $uniq;	2264	if $uniq;
1606	}	2265	}
1607		2266
1608	delete $cf::MAP{$self->path};	2267	delete $cf::MAP{$self->path};
1609		2268
		2269	$self->deactivate;
		2270	$_->clear_links_to ($self) for values %cf::MAP;
1610	$self->clear;	2271	$self->clear;
1611
1612	$_->clear_links_to ($self) for values %cf::MAP;
1613		2272
1614	$self->unlink_save;	2273	$self->unlink_save;
1615	$self->destroy;	2274	$self->destroy;
1616	}	2275	}
1617		2276
1618	my $nuke_counter = "aaaa";	2277	my $nuke_counter = "aaaa";
1619		2278
1620	sub nuke {	2279	sub nuke {
1621	my ($self) = @_;	2280	my ($self) = @_;
1622		2281
		2282	{
		2283	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2284
1623	delete $cf::MAP{$self->path};	2285	delete $cf::MAP{$self->path};
1624		2286
1625	$self->unlink_save;	2287	$self->unlink_save;
1626		2288
1627	bless $self, "cf::map";	2289	bless $self, "cf::map";
1628	delete $self->{deny_reset};	2290	delete $self->{deny_reset};
1629	$self->{deny_save} = 1;	2291	$self->{deny_save} = 1;
1630	$self->reset_timeout (1);	2292	$self->reset_timeout (1);
1631	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2293	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1632		2294
1633	$cf::MAP{$self->path} = $self;	2295	$cf::MAP{$self->path} = $self;
		2296	}
1634		2297
1635	$self->reset; # polite request, might not happen	2298	$self->reset; # polite request, might not happen
		2299	}
		2300
		2301	=item $maps = cf::map::tmp_maps
		2302
		2303	Returns an arrayref with all map paths of currently instantiated and saved
		2304	maps. May block.
		2305
		2306	=cut
		2307
		2308	sub tmp_maps() {
		2309	[
		2310	map {
		2311	utf8::decode $_;
		2312	/\.map$/
		2313	? normalise $_
		2314	: ()
		2315	} @{ aio_readdir $TMPDIR or [] }
		2316	]
		2317	}
		2318
		2319	=item $maps = cf::map::random_maps
		2320
		2321	Returns an arrayref with all map paths of currently instantiated and saved
		2322	random maps. May block.
		2323
		2324	=cut
		2325
		2326	sub random_maps() {
		2327	[
		2328	map {
		2329	utf8::decode $_;
		2330	/\.map$/
		2331	? normalise "?random/$_"
		2332	: ()
		2333	} @{ aio_readdir $RANDOMDIR or [] }
		2334	]
1636	}	2335	}
1637		2336
1638	=item cf::map::unique_maps	2337	=item cf::map::unique_maps
1639		2338
1640	Returns an arrayref of paths of all shared maps that have	2339	Returns an arrayref of paths of all shared maps that have
1641	instantiated unique items. May block.	2340	instantiated unique items. May block.
1642		2341
1643	=cut	2342	=cut
1644		2343
1645	sub unique_maps() {	2344	sub unique_maps() {
1646	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2345	[
1647	or return;	2346	map {
1648
1649	my @paths;
1650
1651	for (@$files) {
1652	utf8::decode $_;	2347	utf8::decode $_;
1653	next if /\.pst$/;	2348	/\.map$/
1654	next unless /^$PATH_SEP/o;	2349	? normalise $_
1655		2350	: ()
1656	push @paths, cf::map::normalise $_;	2351	} @{ aio_readdir $UNIQUEDIR or [] }
1657	}	2352	]
1658
1659	\@paths
1660	}	2353	}
1661		2354
1662	package cf;	2355	package cf;
1663		2356
1664	=back	2357	=back
…		…
1682	map { $_, inv_recursive_ $_->inv } @_	2375	map { $_, inv_recursive_ $_->inv } @_
1683	}	2376	}
1684		2377
1685	sub inv_recursive {	2378	sub inv_recursive {
1686	inv_recursive_ inv $_[0]	2379	inv_recursive_ inv $_[0]
		2380	}
		2381
		2382	=item $ref = $ob->ref
		2383
		2384	creates and returns a persistent reference to an objetc that can be stored as a string.
		2385
		2386	=item $ob = cf::object::deref ($refstring)
		2387
		2388	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2389	even if the object actually exists. May block.
		2390
		2391	=cut
		2392
		2393	sub deref {
		2394	my ($ref) = @_;
		2395
		2396	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2397	my ($uuid, $name) = ($1, $2);
		2398	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2399	or return;
		2400	$pl->ob->uuid eq $uuid
		2401	or return;
		2402
		2403	$pl->ob
		2404	} else {
		2405	warn "$ref: cannot resolve object reference\n";
		2406	undef
		2407	}
1687	}	2408	}
1688		2409
1689	package cf;	2410	package cf;
1690		2411
1691	=back	2412	=back
…		…
1710		2431
1711	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2432	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1712		2433
1713	if ($self->{record_replies}) {	2434	if ($self->{record_replies}) {
1714	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2435	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2436
1715	} else {	2437	} else {
		2438	my $pl = $self->contr;
		2439
		2440	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2441	my $dialog = $pl->{npc_dialog};
		2442	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2443
		2444	} else {
1716	$msg = $npc->name . " says: $msg" if $npc;	2445	$msg = $npc->name . " says: $msg" if $npc;
1717	$self->message ($msg, $flags);	2446	$self->message ($msg, $flags);
		2447	}
1718	}	2448	}
		2449	}
		2450
		2451	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2452
		2453	=cut
		2454
		2455	sub cf::object::send_msg {
		2456	my $pl = shift->contr
		2457	or return;
		2458	$pl->send_msg (@_);
1719	}	2459	}
1720		2460
1721	=item $player_object->may ("access")	2461	=item $player_object->may ("access")
1722		2462
1723	Returns wether the given player is authorized to access resource "access"	2463	Returns wether the given player is authorized to access resource "access"
…		…
1770	$self->deactivate_recursive;	2510	$self->deactivate_recursive;
1771		2511
1772	return if UNIVERSAL::isa $self->map, "ext::map_link";	2512	return if UNIVERSAL::isa $self->map, "ext::map_link";
1773		2513
1774	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2514	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1775	if $self->map;	2515	if $self->map && $self->map->{path} ne "{link}";
1776		2516
1777	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2517	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1778	}	2518	}
1779		2519
1780	sub cf::object::player::leave_link {	2520	sub cf::object::player::leave_link {
1781	my ($self, $map, $x, $y) = @_;	2521	my ($self, $map, $x, $y) = @_;
		2522
		2523	return unless $self->contr->active;
1782		2524
1783	my $link_pos = delete $self->{_link_pos};	2525	my $link_pos = delete $self->{_link_pos};
1784		2526
1785	unless ($map) {	2527	unless ($map) {
1786	# restore original map position	2528	# restore original map position
…		…
1800	# use -1 or undef as default coordinates, not 0, 0	2542	# use -1 or undef as default coordinates, not 0, 0
1801	($x, $y) = ($map->enter_x, $map->enter_y)	2543	($x, $y) = ($map->enter_x, $map->enter_y)
1802	if $x <=0 && $y <= 0;	2544	if $x <=0 && $y <= 0;
1803		2545
1804	$map->load;	2546	$map->load;
1805	$map->load_diag;	2547	$map->load_neighbours;
1806		2548
1807	return unless $self->contr->active;	2549	return unless $self->contr->active;
1808	$self->activate_recursive;	2550	$self->activate_recursive;
1809		2551
1810	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2552	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1811	$self->enter_map ($map, $x, $y);	2553	$self->enter_map ($map, $x, $y);
1812	}	2554	}
1813		2555
1814	cf::player->attach (	2556	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1815	on_logout => sub {
1816	my ($pl) = @_;
1817		2557
1818	# abort map switching before logout	2558	Moves the player to the given map-path and coordinates by first freezing
1819	if ($pl->ob->{_link_pos}) {	2559	her, loading and preparing them map, calling the provided $check callback
1820	cf::sync_job {	2560	that has to return the map if sucecssful, and then unfreezes the player on
1821	$pl->ob->leave_link	2561	the new (success) or old (failed) map position. In either case, $done will
1822	};	2562	be called at the end of this process.
1823	}
1824	},
1825	on_login => sub {
1826	my ($pl) = @_;
1827		2563
1828	# try to abort aborted map switching on player login :)
1829	# should happen only on crashes
1830	if ($pl->ob->{_link_pos}) {
1831	$pl->ob->enter_link;
1832	(async {
1833	$pl->ob->reply (undef,
1834	"There was an internal problem at your last logout, "
1835	. "the server will try to bring you to your intended destination in a second.",
1836	cf::NDI_RED);
1837	# we need this sleep as the login has a concurrent enter_exit running
1838	# and this sleep increases chances of the player not ending up in scorn
1839	Coro::Timer::sleep 1;
1840	$pl->ob->leave_link;
1841	})->prio (2);
1842	}
1843	},
1844	);
1845
1846	=item $player_object->goto ($path, $x, $y)
1847
1848	=cut	2564	=cut
		2565
		2566	our $GOTOGEN;
1849		2567
1850	sub cf::object::player::goto {	2568	sub cf::object::player::goto {
1851	my ($self, $path, $x, $y) = @_;	2569	my ($self, $path, $x, $y, $check, $done) = @_;
		2570
		2571	# do generation counting so two concurrent goto's will be executed in-order
		2572	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1852		2573
1853	$self->enter_link;	2574	$self->enter_link;
1854		2575
1855	(async {	2576	(async {
		2577	$Coro::current->{desc} = "player::goto $path $x $y";
		2578
		2579	# *tag paths override both path and x|y
		2580	if ($path =~ /^\*(.*)$/) {
		2581	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2582	my $ob = $obs[rand @obs];
		2583
		2584	# see if we actually can go there
		2585	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2586	$ob = $obs[rand @obs];
		2587	} else {
		2588	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2589	}
		2590	# else put us there anyways for now #d#
		2591
		2592	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2593	} else {
		2594	($path, $x, $y) = (undef, undef, undef);
		2595	}
		2596	}
		2597
1856	my $map = eval {	2598	my $map = eval {
1857	my $map = cf::map::find $path;	2599	my $map = defined $path ? cf::map::find $path : undef;
		2600
		2601	if ($map) {
1858	$map = $map->customise_for ($self) if $map;	2602	$map = $map->customise_for ($self);
		2603	$map = $check->($map) if $check && $map;
		2604	} else {
		2605	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2606	}
		2607
1859	$map	2608	$map
		2609	};
		2610
		2611	if ($@) {
		2612	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2613	LOG llevError | logBacktrace, Carp::longmess $@;
1860	} or	2614	}
1861	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1862		2615
		2616	if ($gen == $self->{_goto_generation}) {
		2617	delete $self->{_goto_generation};
1863	$self->leave_link ($map, $x, $y);	2618	$self->leave_link ($map, $x, $y);
		2619	}
		2620
		2621	$done->() if $done;
1864	})->prio (1);	2622	})->prio (1);
1865	}	2623	}
1866		2624
1867	=item $player_object->enter_exit ($exit_object)	2625	=item $player_object->enter_exit ($exit_object)
1868		2626
…		…
1905	$rmp->{origin_y} = $exit->y;	2663	$rmp->{origin_y} = $exit->y;
1906	}	2664	}
1907		2665
1908	$rmp->{random_seed} ||= $exit->random_seed;	2666	$rmp->{random_seed} ||= $exit->random_seed;
1909		2667
1910	my $data = cf::to_json $rmp;	2668	my $data = cf::encode_json $rmp;
1911	my $md5 = Digest::MD5::md5_hex $data;	2669	my $md5 = Digest::MD5::md5_hex $data;
1912	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2670	my $meta = "$RANDOMDIR/$md5.meta";
1913		2671
1914	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2672	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1915	aio_write $fh, 0, (length $data), $data, 0;	2673	aio_write $fh, 0, (length $data), $data, 0;
1916	undef $fh;	2674	undef $fh;
1917	aio_rename "$meta~", $meta;	2675	aio_rename "$meta~", $meta;
…		…
1926		2684
1927	return unless $self->type == cf::PLAYER;	2685	return unless $self->type == cf::PLAYER;
1928		2686
1929	if ($exit->slaying eq "/!") {	2687	if ($exit->slaying eq "/!") {
1930	#TODO: this should de-fi-ni-te-ly not be a sync-job	2688	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2689	# the problem is that $exit might not survive long enough
		2690	# so it needs to be done right now, right here
1931	cf::sync_job { prepare_random_map $exit };	2691	cf::sync_job { prepare_random_map $exit };
1932	}	2692	}
1933		2693
1934	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2694	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1935	my $hp = $exit->stats->hp;	2695	my $hp = $exit->stats->hp;
1936	my $sp = $exit->stats->sp;	2696	my $sp = $exit->stats->sp;
1937		2697
1938	$self->enter_link;	2698	$self->enter_link;
1939		2699
		2700	# if exit is damned, update players death & WoR home-position
		2701	$self->contr->savebed ($slaying, $hp, $sp)
		2702	if $exit->flag (FLAG_DAMNED);
		2703
1940	(async {	2704	(async {
		2705	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2706
1941	$self->deactivate_recursive; # just to be sure	2707	$self->deactivate_recursive; # just to be sure
1942	unless (eval {	2708	unless (eval {
1943	$self->goto ($slaying, $hp, $sp);	2709	$self->goto ($slaying, $hp, $sp);
1944		2710
1945	1;	2711	1;
1946	}) {	2712	}) {
1947	$self->message ("Something went wrong deep within the crossfire server. "	2713	$self->message ("Something went wrong deep within the crossfire server. "
1948	. "I'll try to bring you back to the map you were before. "	2714	. "I'll try to bring you back to the map you were before. "
1949	. "Please report this to the dungeon master!",	2715	. "Please report this to the dungeon master!",
1950	cf::NDI_UNIQUE | cf::NDI_RED);	2716	cf::NDI_UNIQUE | cf::NDI_RED);
1951		2717
1952	warn "ERROR in enter_exit: $@";	2718	warn "ERROR in enter_exit: $@";
1953	$self->leave_link;	2719	$self->leave_link;
1954	}	2720	}
1955	})->prio (1);	2721	})->prio (1);
…		…
1968		2734
1969	sub cf::client::send_drawinfo {	2735	sub cf::client::send_drawinfo {
1970	my ($self, $text, $flags) = @_;	2736	my ($self, $text, $flags) = @_;
1971		2737
1972	utf8::encode $text;	2738	utf8::encode $text;
1973	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2739	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1974	}	2740	}
1975		2741
		2742	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2743
		2744	Send a drawinfo or msg packet to the client, formatting the msg for the
		2745	client if neccessary. C<$type> should be a string identifying the type of
		2746	the message, with C<log> being the default. If C<$color> is negative, suppress
		2747	the message unless the client supports the msg packet.
		2748
		2749	=cut
		2750
		2751	# non-persistent channels (usually the info channel)
		2752	our %CHANNEL = (
		2753	"c/identify" => {
		2754	id => "infobox",
		2755	title => "Identify",
		2756	reply => undef,
		2757	tooltip => "Items recently identified",
		2758	},
		2759	"c/examine" => {
		2760	id => "infobox",
		2761	title => "Examine",
		2762	reply => undef,
		2763	tooltip => "Signs and other items you examined",
		2764	},
		2765	"c/book" => {
		2766	id => "infobox",
		2767	title => "Book",
		2768	reply => undef,
		2769	tooltip => "The contents of a note or book",
		2770	},
		2771	"c/lookat" => {
		2772	id => "infobox",
		2773	title => "Look",
		2774	reply => undef,
		2775	tooltip => "What you saw there",
		2776	},
		2777	"c/who" => {
		2778	id => "infobox",
		2779	title => "Players",
		2780	reply => undef,
		2781	tooltip => "Shows players who are currently online",
		2782	},
		2783	"c/body" => {
		2784	id => "infobox",
		2785	title => "Body Parts",
		2786	reply => undef,
		2787	tooltip => "Shows which body parts you posess and are available",
		2788	},
		2789	"c/uptime" => {
		2790	id => "infobox",
		2791	title => "Uptime",
		2792	reply => undef,
		2793	tooltip => "How long the server has been running since last restart",
		2794	},
		2795	"c/mapinfo" => {
		2796	id => "infobox",
		2797	title => "Map Info",
		2798	reply => undef,
		2799	tooltip => "Information related to the maps",
		2800	},
		2801	);
		2802
		2803	sub cf::client::send_msg {
		2804	my ($self, $channel, $msg, $color, @extra) = @_;
		2805
		2806	$msg = $self->pl->expand_cfpod ($msg);
		2807
		2808	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2809
		2810	# check predefined channels, for the benefit of C
		2811	if ($CHANNEL{$channel}) {
		2812	$channel = $CHANNEL{$channel};
		2813
		2814	$self->ext_msg (channel_info => $channel)
		2815	if $self->can_msg;
		2816
		2817	$channel = $channel->{id};
		2818
		2819	} elsif (ref $channel) {
		2820	# send meta info to client, if not yet sent
		2821	unless (exists $self->{channel}{$channel->{id}}) {
		2822	$self->{channel}{$channel->{id}} = $channel;
		2823	$self->ext_msg (channel_info => $channel)
		2824	if $self->can_msg;
		2825	}
		2826
		2827	$channel = $channel->{id};
		2828	}
		2829
		2830	return unless @extra || length $msg;
		2831
		2832	if ($self->can_msg) {
		2833	# default colour, mask it out
		2834	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2835	if $color & cf::NDI_DEF;
		2836
		2837	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2838	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2839	} else {
		2840	if ($color >= 0) {
		2841	# replace some tags by gcfclient-compatible ones
		2842	for ($msg) {
		2843	1 while
		2844	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2845	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2846	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2847	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2848	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2849	}
		2850
		2851	$color &= cf::NDI_COLOR_MASK;
		2852
		2853	utf8::encode $msg;
		2854
		2855	if (0 && $msg =~ /\[/) {
		2856	# COMMAND/INFO
		2857	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2858	} else {
		2859	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2860	$self->send_packet ("drawinfo $color $msg")
		2861	}
		2862	}
		2863	}
		2864	}
		2865
		2866	=item $client->ext_msg ($type, @msg)
		2867
		2868	Sends an ext event to the client.
		2869
		2870	=cut
		2871
		2872	sub cf::client::ext_msg($$@) {
		2873	my ($self, $type, @msg) = @_;
		2874
		2875	if ($self->extcmd == 2) {
		2876	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2877	} elsif ($self->extcmd == 1) { # TODO: remove
		2878	push @msg, msgtype => "event_$type";
		2879	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2880	}
		2881	}
		2882
		2883	=item $client->ext_reply ($msgid, @msg)
		2884
		2885	Sends an ext reply to the client.
		2886
		2887	=cut
		2888
		2889	sub cf::client::ext_reply($$@) {
		2890	my ($self, $id, @msg) = @_;
		2891
		2892	if ($self->extcmd == 2) {
		2893	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2894	} elsif ($self->extcmd == 1) {
		2895	#TODO: version 1, remove
		2896	unshift @msg, msgtype => "reply", msgid => $id;
		2897	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2898	}
		2899	}
1976		2900
1977	=item $success = $client->query ($flags, "text", \&cb)	2901	=item $success = $client->query ($flags, "text", \&cb)
1978		2902
1979	Queues a query to the client, calling the given callback with	2903	Queues a query to the client, calling the given callback with
1980	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2904	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1981	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2905	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1982		2906
1983	Queries can fail, so check the return code. Or don't, as queries will become	2907	Queries can fail, so check the return code. Or don't, as queries will
1984	reliable at some point in the future.	2908	become reliable at some point in the future.
1985		2909
1986	=cut	2910	=cut
1987		2911
1988	sub cf::client::query {	2912	sub cf::client::query {
1989	my ($self, $flags, $text, $cb) = @_;	2913	my ($self, $flags, $text, $cb) = @_;
…		…
1997	utf8::encode $text;	2921	utf8::encode $text;
1998	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2922	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1999		2923
2000	$self->send_packet ($self->{query_queue}[0][0])	2924	$self->send_packet ($self->{query_queue}[0][0])
2001	if @{ $self->{query_queue} } == 1;	2925	if @{ $self->{query_queue} } == 1;
		2926
		2927	1
2002	}	2928	}
2003		2929
2004	cf::client->attach (	2930	cf::client->attach (
		2931	on_connect => sub {
		2932	my ($ns) = @_;
		2933
		2934	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2935	},
2005	on_reply => sub {	2936	on_reply => sub {
2006	my ($ns, $msg) = @_;	2937	my ($ns, $msg) = @_;
2007		2938
2008	# this weird shuffling is so that direct followup queries	2939	# this weird shuffling is so that direct followup queries
2009	# get handled first	2940	# get handled first
…		…
2021	} else {	2952	} else {
2022	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2953	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2023	}	2954	}
2024	}	2955	}
2025	},	2956	},
		2957	on_exticmd => sub {
		2958	my ($ns, $buf) = @_;
		2959
		2960	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2961
		2962	if (ref $msg) {
		2963	my ($type, $reply, @payload) =
		2964	"ARRAY" eq ref $msg
		2965	? @$msg
		2966	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2967
		2968	my @reply;
		2969
		2970	if (my $cb = $EXTICMD{$type}) {
		2971	@reply = $cb->($ns, @payload);
		2972	}
		2973
		2974	$ns->ext_reply ($reply, @reply)
		2975	if $reply;
		2976
		2977	} else {
		2978	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2979	}
		2980
		2981	cf::override;
		2982	},
2026	);	2983	);
2027		2984
2028	=item $client->async (\&cb)	2985	=item $client->async (\&cb)
2029		2986
2030	Create a new coroutine, running the specified callback. The coroutine will	2987	Create a new coroutine, running the specified callback. The coroutine will
…		…
2071	our $safe = new Safe "safe";	3028	our $safe = new Safe "safe";
2072	our $safe_hole = new Safe::Hole;	3029	our $safe_hole = new Safe::Hole;
2073		3030
2074	$SIG{FPE} = 'IGNORE';	3031	$SIG{FPE} = 'IGNORE';
2075		3032
2076	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3033	$safe->permit_only (Opcode::opset qw(
		3034	:base_core :base_mem :base_orig :base_math
		3035	grepstart grepwhile mapstart mapwhile
		3036	sort time
		3037	));
2077		3038
2078	# here we export the classes and methods available to script code	3039	# here we export the classes and methods available to script code
2079		3040
2080	=pod	3041	=pod
2081		3042
2082	The following fucntions and emthods are available within a safe environment:	3043	The following functions and methods are available within a safe environment:
2083		3044
2084	cf::object contr pay_amount pay_player map	3045	cf::object
		3046	contr pay_amount pay_player map x y force_find force_add destroy
		3047	insert remove name archname title slaying race decrease_ob_nr
		3048
2085	cf::object::player player	3049	cf::object::player
2086	cf::player peaceful	3050	player
2087	cf::map trigger	3051
		3052	cf::player
		3053	peaceful
		3054
		3055	cf::map
		3056	trigger
2088		3057
2089	=cut	3058	=cut
2090		3059
2091	for (	3060	for (
2092	["cf::object" => qw(contr pay_amount pay_player map)],	3061	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3062	insert remove inv name archname title slaying race
		3063	decrease_ob_nr destroy)],
2093	["cf::object::player" => qw(player)],	3064	["cf::object::player" => qw(player)],
2094	["cf::player" => qw(peaceful)],	3065	["cf::player" => qw(peaceful)],
2095	["cf::map" => qw(trigger)],	3066	["cf::map" => qw(trigger)],
2096	) {	3067	) {
2097	no strict 'refs';	3068	no strict 'refs';
…		…
2168	=back	3139	=back
2169		3140
2170	=cut	3141	=cut
2171		3142
2172	#############################################################################	3143	#############################################################################
2173
2174	=head2 EXTENSION DATABASE SUPPORT
2175
2176	Crossfire maintains a very simple database for extension use. It can
2177	currently store anything that can be serialised using Storable, which
2178	excludes objects.
2179
2180	The parameter C<$family> should best start with the name of the extension
2181	using it, it should be unique.
2182
2183	=over 4
2184
2185	=item $value = cf::db_get $family => $key
2186
2187	Returns a single value from the database.
2188
2189	=item cf::db_put $family => $key => $value
2190
2191	Stores the given C<$value> in the family.
2192
2193	=cut
2194
2195	our $DB;
2196
2197	sub db_init {
2198	unless ($DB) {
2199	$DB = BDB::db_create $DB_ENV;
2200
2201	cf::sync_job {
2202	eval {
2203	$DB->set_flags (BDB::CHKSUM);
2204
2205	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2206	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2207	cf::cleanup "db_open(db): $!" if $!;
2208	};
2209	cf::cleanup "db_open(db): $@" if $@;
2210	};
2211
2212	my $path = cf::localdir . "/database.pst";
2213	if (stat $path) {
2214	cf::sync_job {
2215	my $pst = Storable::retrieve $path;
2216
2217	cf::db_put (board => data => $pst->{board});
2218	cf::db_put (guildrules => data => $pst->{guildrules});
2219	cf::db_put (rent => balance => $pst->{rent}{balance});
2220	BDB::db_env_txn_checkpoint $DB_ENV;
2221
2222	unlink $path;
2223	};
2224	}
2225	}
2226	}
2227
2228	sub db_get($$) {
2229	my $key = "$_[0]/$_[1]";
2230
2231	cf::sync_job {
2232	BDB::db_get $DB, undef, $key, my $data;
2233
2234	$! ? ()
2235	: Compress::LZF::sthaw $data
2236	}
2237	}
2238
2239	sub db_put($$$) {
2240	BDB::dbreq_pri 4;
2241	BDB::db_put $DB, undef, "$_[0]/$_[1]", Compress::LZF::sfreeze_cr $_[2], 0, sub { };
2242	}
2243
2244	#############################################################################
2245	# the server's init and main functions	3144	# the server's init and main functions
2246		3145
2247	sub load_resources {	3146	sub load_facedata($) {
2248	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3147	my ($path) = @_;
		3148
		3149	# HACK to clear player env face cache, we need some signal framework
		3150	# for this (global event?)
		3151	%ext::player_env::MUSIC_FACE_CACHE = ();
		3152
		3153	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3154
		3155	warn "loading facedata from $path\n";
		3156
		3157	my $facedata;
		3158	0 < aio_load $path, $facedata
		3159	or die "$path: $!";
		3160
		3161	$facedata = Coro::Storable::thaw $facedata;
		3162
		3163	$facedata->{version} == 2
		3164	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3165
		3166	# patch in the exptable
		3167	$facedata->{resource}{"res/exp_table"} = {
		3168	type => FT_RSRC,
		3169	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3170	};
		3171	cf::cede_to_tick;
		3172
		3173	{
		3174	my $faces = $facedata->{faceinfo};
		3175
		3176	while (my ($face, $info) = each %$faces) {
		3177	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3178
		3179	cf::face::set_visibility $idx, $info->{visibility};
		3180	cf::face::set_magicmap $idx, $info->{magicmap};
		3181	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3182	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
		3183
		3184	cf::cede_to_tick;
		3185	}
		3186
		3187	while (my ($face, $info) = each %$faces) {
		3188	next unless $info->{smooth};
		3189
		3190	my $idx = cf::face::find $face
		3191	or next;
		3192
		3193	if (my $smooth = cf::face::find $info->{smooth}) {
		3194	cf::face::set_smooth $idx, $smooth;
		3195	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3196	} else {
		3197	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3198	}
		3199
		3200	cf::cede_to_tick;
		3201	}
		3202	}
		3203
		3204	{
		3205	my $anims = $facedata->{animinfo};
		3206
		3207	while (my ($anim, $info) = each %$anims) {
		3208	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3209	cf::cede_to_tick;
		3210	}
		3211
		3212	cf::anim::invalidate_all; # d'oh
		3213	}
		3214
		3215	{
		3216	# TODO: for gcfclient pleasure, we should give resources
		3217	# that gcfclient doesn't grok a >10000 face index.
		3218	my $res = $facedata->{resource};
		3219
		3220	while (my ($name, $info) = each %$res) {
		3221	if (defined $info->{type}) {
		3222	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3223	my $data;
		3224
		3225	if ($info->{type} & 1) {
		3226	# prepend meta info
		3227
		3228	my $meta = $enc->encode ({
		3229	name => $name,
		3230	%{ $info->{meta} || {} },
		3231	});
		3232
		3233	$data = pack "(w/a*)*", $meta, $info->{data};
		3234	} else {
		3235	$data = $info->{data};
		3236	}
		3237
		3238	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3239	cf::face::set_type $idx, $info->{type};
		3240	} else {
		3241	$RESOURCE{$name} = $info;
		3242	}
		3243
		3244	cf::cede_to_tick;
		3245	}
		3246	}
		3247
		3248	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3249
		3250	1
		3251	}
		3252
		3253	cf::global->attach (on_resource_update => sub {
		3254	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3255	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3256
		3257	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3258	my $sound = $soundconf->{compat}[$_]
		3259	or next;
		3260
		3261	my $face = cf::face::find "sound/$sound->[1]";
		3262	cf::sound::set $sound->[0] => $face;
		3263	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3264	}
		3265
		3266	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3267	my $face = cf::face::find "sound/$v";
		3268	cf::sound::set $k => $face;
		3269	}
		3270	}
		3271	});
		3272
		3273	register_exticmd fx_want => sub {
		3274	my ($ns, $want) = @_;
		3275
		3276	while (my ($k, $v) = each %$want) {
		3277	$ns->fx_want ($k, $v);
		3278	}
		3279	};
		3280
		3281	sub reload_regions {
		3282	# HACK to clear player env face cache, we need some signal framework
		3283	# for this (global event?)
		3284	%ext::player_env::MUSIC_FACE_CACHE = ();
		3285
		3286	load_resource_file "$MAPDIR/regions"
2249	or die "unable to load regions file\n";#d#	3287	or die "unable to load regions file\n";
2250	}
2251		3288
2252	sub cfg_load {	3289	for (cf::region::list) {
		3290	$_->{match} = qr/$_->{match}/
		3291	if exists $_->{match};
		3292	}
		3293	}
		3294
		3295	sub reload_facedata {
		3296	load_facedata "$DATADIR/facedata"
		3297	or die "unable to load facedata\n";
		3298	}
		3299
		3300	sub reload_archetypes {
		3301	load_resource_file "$DATADIR/archetypes"
		3302	or die "unable to load archetypes\n";
		3303	#d# NEED to laod twice to resolve forward references
		3304	# this really needs to be done in an extra post-pass
		3305	# (which needs to be synchronous, so solve it differently)
		3306	load_resource_file "$DATADIR/archetypes"
		3307	or die "unable to load archetypes\n";
		3308	}
		3309
		3310	sub reload_treasures {
		3311	load_resource_file "$DATADIR/treasures"
		3312	or die "unable to load treasurelists\n";
		3313	}
		3314
		3315	sub reload_resources {
		3316	warn "reloading resource files...\n";
		3317
		3318	reload_regions;
		3319	reload_facedata;
		3320	#reload_archetypes;#d#
		3321	reload_archetypes;
		3322	reload_treasures;
		3323
		3324	warn "finished reloading resource files\n";
		3325	}
		3326
		3327	sub init {
		3328	reload_resources;
		3329	}
		3330
		3331	sub reload_config {
2253	open my $fh, "<:utf8", cf::confdir . "/config"	3332	open my $fh, "<:utf8", "$CONFDIR/config"
2254	or return;	3333	or return;
2255		3334
2256	local $/;	3335	local $/;
2257	*CFG = YAML::Syck::Load <$fh>;	3336	*CFG = YAML::Load <$fh>;
2258		3337
2259	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3338	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2260		3339
2261	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3340	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2262	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3341	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2268	};	3347	};
2269	warn $@ if $@;	3348	warn $@ if $@;
2270	}	3349	}
2271	}	3350	}
2272		3351
2273	sub init {
2274	load_resources;
2275	}
2276
2277	sub main {	3352	sub main {
2278	# we must not ever block the main coroutine	3353	# we must not ever block the main coroutine
2279	local $Coro::idle = sub {	3354	local $Coro::idle = sub {
2280	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3355	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2281	(async {	3356	(async {
2282	Event::one_event;	3357	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3358	EV::loop EV::LOOP_ONESHOT;
2283	})->prio (Coro::PRIO_MAX);	3359	})->prio (Coro::PRIO_MAX);
2284	};	3360	};
2285		3361
2286	cfg_load;	3362	reload_config;
2287	db_init;	3363	db_init;
2288	load_extensions;	3364	load_extensions;
2289		3365
2290	$TICK_WATCHER->start;	3366	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3367	evthread_start IO::AIO::poll_fileno;
2291	Event::loop;	3368	EV::loop;
2292	}	3369	}
2293		3370
2294	#############################################################################	3371	#############################################################################
2295	# initialisation and cleanup	3372	# initialisation and cleanup
2296		3373
2297	# install some emergency cleanup handlers	3374	# install some emergency cleanup handlers
2298	BEGIN {	3375	BEGIN {
		3376	our %SIGWATCHER = ();
2299	for my $signal (qw(INT HUP TERM)) {	3377	for my $signal (qw(INT HUP TERM)) {
2300	Event->signal (	3378	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2301	reentrant => 0,
2302	data => WF_AUTOCANCEL,
2303	signal => $signal,
2304	prio => 0,
2305	cb => sub {
2306	cf::cleanup "SIG$signal";	3379	cf::cleanup "SIG$signal";
2307	},
2308	);	3380	};
		3381	}
		3382	}
		3383
		3384	sub write_runtime {
		3385	my $runtime = "$LOCALDIR/runtime";
		3386
		3387	# first touch the runtime file to show we are still running:
		3388	# the fsync below can take a very very long time.
		3389
		3390	IO::AIO::aio_utime $runtime, undef, undef;
		3391
		3392	my $guard = cf::lock_acquire "write_runtime";
		3393
		3394	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3395	or return;
		3396
		3397	my $value = $cf::RUNTIME + 90 + 10;
		3398	# 10 is the runtime save interval, for a monotonic clock
		3399	# 60 allows for the watchdog to kill the server.
		3400
		3401	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3402	and return;
		3403
		3404	# always fsync - this file is important
		3405	aio_fsync $fh
		3406	and return;
		3407
		3408	# touch it again to show we are up-to-date
		3409	aio_utime $fh, undef, undef;
		3410
		3411	close $fh
		3412	or return;
		3413
		3414	aio_rename "$runtime~", $runtime
		3415	and return;
		3416
		3417	warn "runtime file written.\n";
		3418
2309	}	3419	1
2310	}	3420	}
2311		3421
2312	sub emergency_save() {	3422	sub emergency_save() {
2313	my $freeze_guard = cf::freeze_mainloop;	3423	my $freeze_guard = cf::freeze_mainloop;
2314		3424
…		…
2320	# and maps saved/destroyed asynchronously.	3430	# and maps saved/destroyed asynchronously.
2321	warn "begin emergency player save\n";	3431	warn "begin emergency player save\n";
2322	for my $login (keys %cf::PLAYER) {	3432	for my $login (keys %cf::PLAYER) {
2323	my $pl = $cf::PLAYER{$login} or next;	3433	my $pl = $cf::PLAYER{$login} or next;
2324	$pl->valid or next;	3434	$pl->valid or next;
		3435	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2325	$pl->save;	3436	$pl->save;
2326	}	3437	}
2327	warn "end emergency player save\n";	3438	warn "end emergency player save\n";
2328		3439
2329	warn "begin emergency map save\n";	3440	warn "begin emergency map save\n";
…		…
2347		3458
2348	warn Carp::longmess "post_cleanup backtrace"	3459	warn Carp::longmess "post_cleanup backtrace"
2349	if $make_core;	3460	if $make_core;
2350	}	3461	}
2351		3462
2352	sub reload() {	3463	sub do_reload_perl() {
2353	# can/must only be called in main	3464	# can/must only be called in main
2354	if ($Coro::current != $Coro::main) {	3465	if ($Coro::current != $Coro::main) {
2355	warn "can only reload from main coroutine";	3466	warn "can only reload from main coroutine";
2356	return;	3467	return;
2357	}	3468	}
…		…
2368	warn "syncing database to disk";	3479	warn "syncing database to disk";
2369	BDB::db_env_txn_checkpoint $DB_ENV;	3480	BDB::db_env_txn_checkpoint $DB_ENV;
2370		3481
2371	# if anything goes wrong in here, we should simply crash as we already saved	3482	# if anything goes wrong in here, we should simply crash as we already saved
2372		3483
2373	warn "cancelling all WF_AUTOCANCEL watchers";
2374	for (Event::all_watchers) {
2375	$_->cancel if $_->data & WF_AUTOCANCEL;
2376	}
2377
2378	warn "flushing outstanding aio requests";	3484	warn "flushing outstanding aio requests";
2379	for (;;) {	3485	for (;;) {
2380	BDB::flush;	3486	BDB::flush;
2381	IO::AIO::flush;	3487	IO::AIO::flush;
2382	Coro::cede;	3488	Coro::cede_notself;
2383	last unless IO::AIO::nreqs || BDB::nreqs;	3489	last unless IO::AIO::nreqs || BDB::nreqs;
2384	warn "iterate...";	3490	warn "iterate...";
2385	}	3491	}
		3492
		3493	++$RELOAD;
2386		3494
2387	warn "cancelling all extension coros";	3495	warn "cancelling all extension coros";
2388	$_->cancel for values %EXT_CORO;	3496	$_->cancel for values %EXT_CORO;
2389	%EXT_CORO = ();	3497	%EXT_CORO = ();
2390		3498
2391	warn "removing commands";	3499	warn "removing commands";
2392	%COMMAND = ();	3500	%COMMAND = ();
2393		3501
2394	warn "removing ext commands";	3502	warn "removing ext/exti commands";
2395	%EXTCMD = ();	3503	%EXTCMD = ();
		3504	%EXTICMD = ();
2396		3505
2397	warn "unloading/nuking all extensions";	3506	warn "unloading/nuking all extensions";
2398	for my $pkg (@EXTS) {	3507	for my $pkg (@EXTS) {
2399	warn "... unloading $pkg";	3508	warn "... unloading $pkg";
2400		3509
…		…
2430	Symbol::delete_package "safe::$_"	3539	Symbol::delete_package "safe::$_"
2431	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3540	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2432		3541
2433	warn "unloading cf.pm \"a bit\"";	3542	warn "unloading cf.pm \"a bit\"";
2434	delete $INC{"cf.pm"};	3543	delete $INC{"cf.pm"};
		3544	delete $INC{"cf/pod.pm"};
2435		3545
2436	# don't, removes xs symbols, too,	3546	# don't, removes xs symbols, too,
2437	# and global variables created in xs	3547	# and global variables created in xs
2438	#Symbol::delete_package __PACKAGE__;	3548	#Symbol::delete_package __PACKAGE__;
2439		3549
…		…
2442	warn "reloading cf.pm";	3552	warn "reloading cf.pm";
2443	require cf;	3553	require cf;
2444	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3554	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2445		3555
2446	warn "loading config and database again";	3556	warn "loading config and database again";
2447	cf::cfg_load;	3557	cf::reload_config;
2448		3558
2449	warn "loading extensions";	3559	warn "loading extensions";
2450	cf::load_extensions;	3560	cf::load_extensions;
2451		3561
2452	warn "reattaching attachments to objects/players";	3562	warn "reattaching attachments to objects/players";
2453	_global_reattach;	3563	_global_reattach; # objects, sockets
2454	warn "reattaching attachments to maps";	3564	warn "reattaching attachments to maps";
2455	reattach $_ for values %MAP;	3565	reattach $_ for values %MAP;
2456		3566	warn "reattaching attachments to players";
2457	warn "loading reloadable resources";	3567	reattach $_ for values %PLAYER;
2458	load_resources;
2459		3568
2460	warn "leaving sync_job";	3569	warn "leaving sync_job";
2461		3570
2462	1	3571	1
2463	} or do {	3572	} or do {
2464	warn $@;	3573	warn $@;
2465	warn "error while reloading, exiting.";	3574	cf::cleanup "error while reloading, exiting.";
2466	exit 1;
2467	};	3575	};
2468		3576
2469	warn "reloaded";	3577	warn "reloaded";
2470	};	3578	};
2471		3579
2472	our $RELOAD_WATCHER; # used only during reload	3580	our $RELOAD_WATCHER; # used only during reload
2473		3581
		3582	sub reload_perl() {
		3583	# doing reload synchronously and two reloads happen back-to-back,
		3584	# coro crashes during coro_state_free->destroy here.
		3585
		3586	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
		3587	do_reload_perl;
		3588	undef $RELOAD_WATCHER;
		3589	};
		3590	}
		3591
2474	register_command "reload" => sub {	3592	register_command "reload" => sub {
2475	my ($who, $arg) = @_;	3593	my ($who, $arg) = @_;
2476		3594
2477	if ($who->flag (FLAG_WIZ)) {	3595	if ($who->flag (FLAG_WIZ)) {
2478	$who->message ("reloading server.");	3596	$who->message ("reloading server.");
2479		3597	async {
2480	# doing reload synchronously and two reloads happen back-to-back,	3598	$Coro::current->{desc} = "perl_reload";
2481	# coro crashes during coro_state_free->destroy here.
2482
2483	$RELOAD_WATCHER ||= Event->timer (
2484	reentrant => 0,
2485	after => 0,
2486	data => WF_AUTOCANCEL,
2487	cb => sub {
2488	reload;	3599	reload_perl;
2489	undef $RELOAD_WATCHER;
2490	},
2491	);	3600	};
2492	}	3601	}
2493	};	3602	};
2494		3603
2495	unshift @INC, $LIBDIR;	3604	unshift @INC, $LIBDIR;
2496		3605
2497	my $bug_warning = 0;	3606	my $bug_warning = 0;
2498		3607
2499	$TICK_WATCHER = Event->timer (	3608	our @WAIT_FOR_TICK;
2500	reentrant => 0,	3609	our @WAIT_FOR_TICK_BEGIN;
2501	parked => 1,	3610
2502	prio => 0,	3611	sub wait_for_tick {
2503	at => $NEXT_TICK || $TICK,	3612	return if tick_inhibit;
2504	data => WF_AUTOCANCEL,	3613	return if $Coro::current == $Coro::main;
2505	cb => sub {	3614
		3615	my $signal = new Coro::Signal;
		3616	push @WAIT_FOR_TICK, $signal;
		3617	$signal->wait;
		3618	}
		3619
		3620	sub wait_for_tick_begin {
		3621	return if tick_inhibit;
		3622	return if $Coro::current == $Coro::main;
		3623
		3624	my $signal = new Coro::Signal;
		3625	push @WAIT_FOR_TICK_BEGIN, $signal;
		3626	$signal->wait;
		3627	}
		3628
		3629	sub tick {
2506	if ($Coro::current != $Coro::main) {	3630	if ($Coro::current != $Coro::main) {
2507	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3631	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2508	unless ++$bug_warning > 10;	3632	unless ++$bug_warning > 10;
2509	return;	3633	return;
2510	}	3634	}
2511		3635
2512	$NOW = Event::time;
2513
2514	cf::server_tick; # one server iteration	3636	cf::server_tick; # one server iteration
2515	$RUNTIME += $TICK;
2516	$NEXT_TICK += $TICK;
2517		3637
2518	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3638	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2519	$NEXT_RUNTIME_WRITE = $NOW + 10;	3639	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2520	Coro::async_pool {	3640	Coro::async_pool {
		3641	$Coro::current->{desc} = "runtime saver";
2521	write_runtime	3642	write_runtime
2522	or warn "ERROR: unable to write runtime file: $!";	3643	or warn "ERROR: unable to write runtime file: $!";
2523	};
2524	}	3644	};
2525
2526
2527	$WAIT_FOR_TICK->broadcast;
2528	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2529
2530	# my $AFTER = Event::time;
2531	# warn $AFTER - $NOW;#d#
2532
2533	# if we are delayed by four ticks or more, skip them all
2534	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2535
2536	$TICK_WATCHER->at ($NEXT_TICK);
2537	$TICK_WATCHER->start;
2538	},	3645	}
2539	);	3646
		3647	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3648	$sig->send;
		3649	}
		3650	while (my $sig = shift @WAIT_FOR_TICK) {
		3651	$sig->send;
		3652	}
		3653
		3654	$LOAD = ($NOW - $TICK_START) / $TICK;
		3655	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3656
		3657	if (0) {
		3658	if ($NEXT_TICK) {
		3659	my $jitter = $TICK_START - $NEXT_TICK;
		3660	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3661	warn "jitter $JITTER\n";#d#
		3662	}
		3663	}
		3664	}
2540		3665
2541	{	3666	{
2542	BDB::max_poll_time $TICK * 0.1;	3667	# configure BDB
2543	$BDB_POLL_WATCHER = Event->io (	3668
2544	reentrant => 0,
2545	fd => BDB::poll_fileno,
2546	poll => 'r',
2547	prio => 0,
2548	data => WF_AUTOCANCEL,
2549	cb => \&BDB::poll_cb,
2550	);
2551	BDB::min_parallel 8;	3669	BDB::min_parallel 8;
2552		3670	BDB::max_poll_reqs $TICK * 0.1;
2553	BDB::set_sync_prepare {	3671	$Coro::BDB::WATCHER->priority (1);
2554	my $status;
2555	my $current = $Coro::current;
2556	(
2557	sub {
2558	$status = $!;
2559	$current->ready; undef $current;
2560	},
2561	sub {
2562	Coro::schedule while defined $current;
2563	$! = $status;
2564	},
2565	)
2566	};
2567		3672
2568	unless ($DB_ENV) {	3673	unless ($DB_ENV) {
2569	$DB_ENV = BDB::db_env_create;	3674	$DB_ENV = BDB::db_env_create;
		3675	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3676	| BDB::LOG_AUTOREMOVE, 1);
		3677	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3678	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2570		3679
2571	cf::sync_job {	3680	cf::sync_job {
2572	eval {	3681	eval {
2573	BDB::db_env_open	3682	BDB::db_env_open
2574	$DB_ENV,	3683	$DB_ENV,
2575	$BDB_ENV_DIR,	3684	$BDBDIR,
2576	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3685	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2577	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3686	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2578	0666;	3687	0666;
2579		3688
2580	cf::cleanup "db_env_open($BDB_ENV_DIR): $!" if $!;	3689	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2581
2582	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2583	$DB_ENV->set_lk_detect;
2584	};	3690	};
2585		3691
2586	cf::cleanup "db_env_open(db): $@" if $@;	3692	cf::cleanup "db_env_open(db): $@" if $@;
2587	};	3693	};
2588	}	3694	}
		3695
		3696	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3697	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3698	};
		3699	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3700	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3701	};
		3702	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3703	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3704	};
2589	}	3705	}
2590		3706
2591	{	3707	{
		3708	# configure IO::AIO
		3709
2592	IO::AIO::min_parallel 8;	3710	IO::AIO::min_parallel 8;
2593
2594	undef $Coro::AIO::WATCHER;
2595	IO::AIO::max_poll_time $TICK * 0.1;	3711	IO::AIO::max_poll_time $TICK * 0.1;
2596	$AIO_POLL_WATCHER = Event->io (	3712	$Coro::AIO::WATCHER->priority (1);
2597	reentrant => 0,
2598	data => WF_AUTOCANCEL,
2599	fd => IO::AIO::poll_fileno,
2600	poll => 'r',
2601	prio => 6,
2602	cb => \&IO::AIO::poll_cb,
2603	);
2604	}	3713	}
		3714
		3715	my $_log_backtrace;
		3716
		3717	sub _log_backtrace {
		3718	my ($msg, @addr) = @_;
		3719
		3720	$msg =~ s/\n//;
		3721
		3722	# limit the # of concurrent backtraces
		3723	if ($_log_backtrace < 2) {
		3724	++$_log_backtrace;
		3725	async {
		3726	$Coro::current->{desc} = "abt $msg";
		3727
		3728	my @bt = fork_call {
		3729	@addr = map { sprintf "%x", $_ } @addr;
		3730	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3731	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3732	or die "addr2line: $!";
		3733
		3734	my @funcs;
		3735	my @res = <$fh>;
		3736	chomp for @res;
		3737	while (@res) {
		3738	my ($func, $line) = splice @res, 0, 2, ();
		3739	push @funcs, "[$func] $line";
		3740	}
		3741
		3742	@funcs
		3743	};
		3744
		3745	LOG llevInfo, "[ABT] $msg\n";
		3746	LOG llevInfo, "[ABT] $_\n" for @bt;
		3747	--$_log_backtrace;
		3748	};
		3749	} else {
		3750	LOG llevInfo, "[ABT] $msg\n";
		3751	LOG llevInfo, "[ABT] [suppressed]\n";
		3752	}
		3753	}
		3754
		3755	# load additional modules
		3756	use cf::pod;
2605		3757
2606	END { cf::emergency_save }	3758	END { cf::emergency_save }
2607		3759
2608	1	3760	1
2609		3761

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