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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.193 by root, Wed Jan 24 16:29:10 2007 UTC vs.
Revision 1.449 by root, Sat Sep 20 00:09:27 2008 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
		24	use 5.10.0;
3	use utf8;	25	use utf8;
4	use strict;	26	use strict "vars", "subs";
5		27
6	use Symbol;	28	use Symbol;
7	use List::Util;	29	use List::Util;
8	use Storable;	30	use Socket;
		31	use EV;
9	use Opcode;	32	use Opcode;
10	use Safe;	33	use Safe;
11	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
12		36
13	use Coro 3.5 ();	37	use Coro ();
		38	use Coro::State;
		39	use Coro::Handle;
		40	use Coro::EV;
14	use Coro::Event;	41	use Coro::AnyEvent;
15	use Coro::Timer;	42	use Coro::Timer;
16	use Coro::Signal;	43	use Coro::Signal;
17	use Coro::Semaphore;	44	use Coro::Semaphore;
		45	use Coro::AnyEvent;
18	use Coro::AIO;	46	use Coro::AIO;
		47	use Coro::BDB 1.6;
		48	use Coro::Storable;
		49	use Coro::Util ();
19		50
		51	use JSON::XS 2.01 ();
		52	use BDB ();
20	use Data::Dumper;	53	use Data::Dumper;
21	use Digest::MD5;	54	use Digest::MD5;
22	use Fcntl;	55	use Fcntl;
		56	use YAML ();
23	use IO::AIO 2.32 ();	57	use IO::AIO ();
24	use YAML::Syck ();
25	use Time::HiRes;	58	use Time::HiRes;
		59	use Compress::LZF;
		60	use Digest::MD5 ();
26		61
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	62	AnyEvent::detect;
		63
		64	# configure various modules to our taste
		65	#
		66	$Storable::canonical = 1; # reduce rsync transfers
		67	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		68
		69	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		70
		71	# make sure c-lzf reinitialises itself
		72	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
		73	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
28		74
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	75	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;
33
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		76
36	our %COMMAND = ();	77	our %COMMAND = ();
37	our %COMMAND_TIME = ();	78	our %COMMAND_TIME = ();
38		79
39	our @EXTS = (); # list of extension package names	80	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	81	our %EXTCMD = ();
		82	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	83	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	84	our %EXT_MAP = (); # pluggable maps
43		85
		86	our $RELOAD; # number of reloads so far
44	our @EVENT;	87	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		88
47	our $TICK = MAX_TIME * 1e-6;	89	our $CONFDIR = confdir;
48	our $TICK_WATCHER;	90	our $DATADIR = datadir;
49	our $AIO_POLL_WATCHER;	91	our $LIBDIR = "$DATADIR/ext";
50	our $WRITE_RUNTIME_WATCHER;	92	our $PODDIR = "$DATADIR/pod";
		93	our $MAPDIR = "$DATADIR/" . mapdir;
		94	our $LOCALDIR = localdir;
		95	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		96	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		97	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		98	our $RANDOMDIR = "$LOCALDIR/random";
		99	our $BDBDIR = "$LOCALDIR/db";
		100	our $PIDFILE = "$LOCALDIR/pid";
		101	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		102
		103	our %RESOURCE;
		104
		105	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
		106	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	107	our $NEXT_TICK;
52	our $NOW;	108	our $USE_FSYNC = 1; # use fsync to write maps - default off
		109
		110	our $BDB_DEADLOCK_WATCHER;
		111	our $BDB_CHECKPOINT_WATCHER;
		112	our $BDB_TRICKLE_WATCHER;
		113	our $DB_ENV;
53		114
54	our %CFG;	115	our %CFG;
55		116
56	our $UPTIME; $UPTIME ||= time;	117	our $UPTIME; $UPTIME ||= time;
57	our $RUNTIME;	118	our $RUNTIME;
		119	our $NOW;
58		120
59	our %PLAYER; # all users	121	our (%PLAYER, %PLAYER_LOADING); # all users
60	our %MAP; # all maps	122	our (%MAP, %MAP_LOADING ); # all maps
61	our $LINK_MAP; # the special {link} map, which is always available	123	our $LINK_MAP; # the special {link} map, which is always available
62	our $RANDOM_MAPS = cf::localdir . "/random";
63
64	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
65	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
66		124
67	# used to convert map paths into valid unix filenames by replacing / by ∕	125	# used to convert map paths into valid unix filenames by replacing / by ∕
68	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	126	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
69		127
		128	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		129	our $LOADAVG; # same thing, but with alpha-smoothing
		130	our $JITTER; # average jitter
		131	our $TICK_START; # for load detecting purposes
		132
70	binmode STDOUT;	133	binmode STDOUT;
71	binmode STDERR;	134	binmode STDERR;
72		135
73	# read virtual server time, if available	136	# read virtual server time, if available
74	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	137	unless ($RUNTIME || !-e $RUNTIMEFILE) {
75	open my $fh, "<", cf::localdir . "/runtime"	138	open my $fh, "<", $RUNTIMEFILE
76	or die "unable to read runtime file: $!";	139	or die "unable to read $RUNTIMEFILE file: $!";
77	$RUNTIME = <$fh> + 0.;	140	$RUNTIME = <$fh> + 0.;
78	}	141	}
79		142
80	mkdir cf::localdir;	143	mkdir $_
81	mkdir cf::localdir . "/" . cf::playerdir;	144	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
82	mkdir cf::localdir . "/" . cf::tmpdir;
83	mkdir cf::localdir . "/" . cf::uniquedir;
84	mkdir $RANDOM_MAPS;
85		145
86	our $EMERGENCY_POSITION;	146	our $EMERGENCY_POSITION;
		147
		148	sub cf::map::normalise;
87		149
88	#############################################################################	150	#############################################################################
89		151
90	=head2 GLOBAL VARIABLES	152	=head2 GLOBAL VARIABLES
91		153
…		…
98	=item $cf::RUNTIME	160	=item $cf::RUNTIME
99		161
100	The time this server has run, starts at 0 and is increased by $cf::TICK on	162	The time this server has run, starts at 0 and is increased by $cf::TICK on
101	every server tick.	163	every server tick.
102		164
103	=item $cf::LIBDIR	165	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		166	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		167	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
104		168
105	The perl library directory, where extensions and cf-specific modules can	169	Various directories - "/etc", read-only install directory, perl-library
106	be found. It will be added to C<@INC> automatically.	170	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		171	unique-items directory, player file directory, random maps directory and
		172	database environment.
107		173
108	=item $cf::NOW	174	=item $cf::NOW
109		175
110	The time of the last (current) server tick.	176	The time of the last (current) server tick.
111		177
112	=item $cf::TICK	178	=item $cf::TICK
113		179
114	The interval between server ticks, in seconds.	180	The interval between server ticks, in seconds.
115		181
		182	=item $cf::LOADAVG
		183
		184	The current CPU load on the server (alpha-smoothed), as a value between 0
		185	(none) and 1 (overloaded), indicating how much time is spent on processing
		186	objects per tick. Healthy values are < 0.5.
		187
		188	=item $cf::LOAD
		189
		190	The raw value load value from the last tick.
		191
116	=item %cf::CFG	192	=item %cf::CFG
117		193
118	Configuration for the server, loaded from C</etc/crossfire/config>, or	194	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
119	from wherever your confdir points to.	195	from wherever your confdir points to.
120		196
121	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	197	=item cf::wait_for_tick, cf::wait_for_tick_begin
122		198
123	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	199	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
124	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	200	returns directly I<after> the tick processing (and consequently, can only wake one process
125	processing has been done. Call C<< ->wait >> on them to maximise the	201	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
126	window of cpu time available, or simply to synchronise to the server tick.	202
		203	=item @cf::INVOKE_RESULTS
		204
		205	This array contains the results of the last C<invoke ()> call. When
		206	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		207	that call.
127		208
128	=back	209	=back
129		210
130	=cut	211	=cut
131		212
132	BEGIN {	213	BEGIN {
133	*CORE::GLOBAL::warn = sub {	214	*CORE::GLOBAL::warn = sub {
134	my $msg = join "", @_;	215	my $msg = join "", @_;
135	utf8::encode $msg;
136		216
137	$msg .= "\n"	217	$msg .= "\n"
138	unless $msg =~ /\n$/;	218	unless $msg =~ /\n$/;
139		219
		220	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		221
140	LOG llevError, $msg;	222	LOG llevError, $msg;
141	};	223	};
142	}	224	}
		225
		226	$Coro::State::DIEHOOK = sub {
		227	return unless $^S eq 0; # "eq", not "=="
		228
		229	if ($Coro::current == $Coro::main) {#d#
		230	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		231	return;#d#
		232	}#d#
		233
		234	# kill coroutine otherwise
		235	warn Carp::longmess $_[0];
		236	Coro::terminate
		237	};
		238
		239	$SIG{__DIE__} = sub { }; #d#?
143		240
144	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	241	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
145	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	242	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
146	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	243	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
147	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	244	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
148	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	245	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		246	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
149	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	247	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
150		248
151	# we bless all objects into (empty) derived classes to force a method lookup	249	# we bless all objects into (empty) derived classes to force a method lookup
152	# within the Safe compartment.	250	# within the Safe compartment.
153	for my $pkg (qw(	251	for my $pkg (qw(
154	cf::global cf::attachable	252	cf::global cf::attachable
155	cf::object cf::object::player	253	cf::object cf::object::player
156	cf::client cf::player	254	cf::client cf::player
157	cf::arch cf::living	255	cf::arch cf::living
		256	cf::map cf::mapspace
158	cf::map cf::party cf::region	257	cf::party cf::region
159	)) {	258	)) {
160	no strict 'refs';
161	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	259	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
162	}	260	}
163		261
164	$Event::DIED = sub {	262	$EV::DIED = sub {
165	warn "error in event callback: @_";	263	warn "error in event callback: @_";
166	};	264	};
		265
		266	#############################################################################
167		267
168	=head2 UTILITY FUNCTIONS	268	=head2 UTILITY FUNCTIONS
169		269
170	=over 4	270	=over 4
171		271
…		…
190	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	290	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
191	$d	291	$d
192	} || "[unable to dump $_[0]: '$@']";	292	} || "[unable to dump $_[0]: '$@']";
193	}	293	}
194		294
195	use JSON::Syck (); # TODO# replace by JSON::PC once working
196
197	=item $ref = cf::from_json $json	295	=item $ref = cf::decode_json $json
198		296
199	Converts a JSON string into the corresponding perl data structure.	297	Converts a JSON string into the corresponding perl data structure.
200		298
201	=cut
202
203	sub from_json($) {
204	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
205	JSON::Syck::Load $_[0]
206	}
207
208	=item $json = cf::to_json $ref	299	=item $json = cf::encode_json $ref
209		300
210	Converts a perl data structure into its JSON representation.	301	Converts a perl data structure into its JSON representation.
211		302
212	=cut	303	=cut
213		304
214	sub to_json($) {	305	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
215	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	306
216	JSON::Syck::Dump $_[0]	307	sub encode_json($) { $json_coder->encode ($_[0]) }
217	}	308	sub decode_json($) { $json_coder->decode ($_[0]) }
218		309
219	=item cf::lock_wait $string	310	=item cf::lock_wait $string
220		311
221	Wait until the given lock is available. See cf::lock_acquire.	312	Wait until the given lock is available. See cf::lock_acquire.
222		313
…		…
225	Wait until the given lock is available and then acquires it and returns	316	Wait until the given lock is available and then acquires it and returns
226	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	317	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
227	for example when the coroutine gets canceled), the lock is automatically	318	for example when the coroutine gets canceled), the lock is automatically
228	returned.	319	returned.
229		320
		321	Locks are *not* recursive, locking from the same coro twice results in a
		322	deadlocked coro.
		323
230	Lock names should begin with a unique identifier (for example, cf::map::find	324	Lock names should begin with a unique identifier (for example, cf::map::find
231	uses map_find and cf::map::load uses map_load).	325	uses map_find and cf::map::load uses map_load).
232		326
		327	=item $locked = cf::lock_active $string
		328
		329	Return true if the lock is currently active, i.e. somebody has locked it.
		330
233	=cut	331	=cut
234		332
235	our %LOCK;	333	our %LOCK;
		334	our %LOCKER;#d#
236		335
237	sub lock_wait($) {	336	sub lock_wait($) {
238	my ($key) = @_;	337	my ($key) = @_;
		338
		339	if ($LOCKER{$key} == $Coro::current) {#d#
		340	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		341	return;#d#
		342	}#d#
239		343
240	# wait for lock, if any	344	# wait for lock, if any
241	while ($LOCK{$key}) {	345	while ($LOCK{$key}) {
242	push @{ $LOCK{$key} }, $Coro::current;	346	push @{ $LOCK{$key} }, $Coro::current;
243	Coro::schedule;	347	Coro::schedule;
…		…
249		353
250	# wait, to be sure we are not locked	354	# wait, to be sure we are not locked
251	lock_wait $key;	355	lock_wait $key;
252		356
253	$LOCK{$key} = [];	357	$LOCK{$key} = [];
		358	$LOCKER{$key} = $Coro::current;#d#
254		359
255	Coro::guard {	360	Coro::guard {
		361	delete $LOCKER{$key};#d#
256	# wake up all waiters, to be on the safe side	362	# wake up all waiters, to be on the safe side
257	$_->ready for @{ delete $LOCK{$key} };	363	$_->ready for @{ delete $LOCK{$key} };
258	}	364	}
259	}	365	}
260		366
		367	sub lock_active($) {
		368	my ($key) = @_;
		369
		370	! ! $LOCK{$key}
		371	}
		372
261	sub freeze_mainloop {	373	sub freeze_mainloop {
262	return unless $TICK_WATCHER->is_active;	374	tick_inhibit_inc;
263		375
264	my $guard = Coro::guard {	376	Coro::guard \&tick_inhibit_dec;
265	$TICK_WATCHER->start;	377	}
266	$WRITE_RUNTIME_WATCHER->start;	378
		379	=item cf::periodic $interval, $cb
		380
		381	Like EV::periodic, but randomly selects a starting point so that the actions
		382	get spread over timer.
		383
		384	=cut
		385
		386	sub periodic($$) {
		387	my ($interval, $cb) = @_;
		388
		389	my $start = rand List::Util::min 180, $interval;
		390
		391	EV::periodic $start, $interval, 0, $cb
		392	}
		393
		394	=item cf::get_slot $time[, $priority[, $name]]
		395
		396	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		397	This call blocks and returns only when you have at least C<$time> seconds
		398	of cpu time till the next tick. The slot is only valid till the next cede.
		399
		400	The optional C<$name> can be used to identify the job to run. It might be
		401	used for statistical purposes and should identify the same time-class.
		402
		403	Useful for short background jobs.
		404
		405	=cut
		406
		407	our @SLOT_QUEUE;
		408	our $SLOT_QUEUE;
		409
		410	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		411	$SLOT_QUEUE = Coro::async {
		412	$Coro::current->desc ("timeslot manager");
		413
		414	my $signal = new Coro::Signal;
		415
		416	while () {
		417	next_job:
		418	my $avail = cf::till_tick;
		419	if ($avail > 0.01) {
		420	for (0 .. $#SLOT_QUEUE) {
		421	if ($SLOT_QUEUE[$_][0] < $avail) {
		422	my $job = splice @SLOT_QUEUE, $_, 1, ();
		423	$job->[2]->send;
		424	Coro::cede;
		425	goto next_job;
		426	}
		427	}
		428	}
		429
		430	if (@SLOT_QUEUE) {
		431	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		432	push @cf::WAIT_FOR_TICK, $signal;
		433	$signal->wait;
		434	} else {
		435	Coro::schedule;
		436	}
267	};	437	}
268	$WRITE_RUNTIME_WATCHER->stop;	438	};
269	$TICK_WATCHER->stop;	439
270	$guard	440	sub get_slot($;$$) {
		441	return if tick_inhibit || $Coro::current == $Coro::main;
		442
		443	my ($time, $pri, $name) = @_;
		444
		445	$time = $TICK * .6 if $time > $TICK * .6;
		446	my $sig = new Coro::Signal;
		447
		448	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		449	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		450	$SLOT_QUEUE->ready;
		451	$sig->wait;
271	}	452	}
272		453
273	=item cf::async { BLOCK }	454	=item cf::async { BLOCK }
274		455
275	Currently the same as Coro::async_pool, meaning you cannot use	456	Currently the same as Coro::async_pool, meaning you cannot use
…		…
280		461
281	BEGIN { *async = \&Coro::async_pool }	462	BEGIN { *async = \&Coro::async_pool }
282		463
283	=item cf::sync_job { BLOCK }	464	=item cf::sync_job { BLOCK }
284		465
285	The design of crossfire+ requires that the main coro ($Coro::main) is	466	The design of Deliantra requires that the main coroutine ($Coro::main)
286	always able to handle events or runnable, as crossfire+ is only partly	467	is always able to handle events or runnable, as Deliantra is only
287	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	468	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		469	acceptable.
288		470
289	If it must be done, put the blocking parts into C<sync_job>. This will run	471	If it must be done, put the blocking parts into C<sync_job>. This will run
290	the given BLOCK in another coroutine while waiting for the result. The	472	the given BLOCK in another coroutine while waiting for the result. The
291	server will be frozen during this time, so the block should either finish	473	server will be frozen during this time, so the block should either finish
292	fast or be very important.	474	fast or be very important.
…		…
295		477
296	sub sync_job(&) {	478	sub sync_job(&) {
297	my ($job) = @_;	479	my ($job) = @_;
298		480
299	if ($Coro::current == $Coro::main) {	481	if ($Coro::current == $Coro::main) {
		482	my $time = EV::time;
		483
300	# this is the main coro, too bad, we have to block	484	# this is the main coro, too bad, we have to block
301	# till the operation succeeds, freezing the server :/	485	# till the operation succeeds, freezing the server :/
302		486
303	# TODO: use suspend/resume instead	487	LOG llevError, Carp::longmess "sync job";#d#
304	# (but this is cancel-safe)	488
305	my $freeze_guard = freeze_mainloop;	489	my $freeze_guard = freeze_mainloop;
306		490
307	my $busy = 1;	491	my $busy = 1;
308	my @res;	492	my @res;
309		493
310	(async {	494	(async {
		495	$Coro::current->desc ("sync job coro");
311	@res = eval { $job->() };	496	@res = eval { $job->() };
312	warn $@ if $@;	497	warn $@ if $@;
313	undef $busy;	498	undef $busy;
314	})->prio (Coro::PRIO_MAX);	499	})->prio (Coro::PRIO_MAX);
315		500
316	while ($busy) {	501	while ($busy) {
317	Coro::cede or Event::one_event;	502	if (Coro::nready) {
		503	Coro::cede_notself;
		504	} else {
		505	EV::loop EV::LOOP_ONESHOT;
318	}	506	}
		507	}
		508
		509	my $time = EV::time - $time;
		510
		511	$TICK_START += $time; # do not account sync jobs to server load
319		512
320	wantarray ? @res : $res[0]	513	wantarray ? @res : $res[0]
321	} else {	514	} else {
322	# we are in another coroutine, how wonderful, everything just works	515	# we are in another coroutine, how wonderful, everything just works
323		516
…		…
343	$EXT_CORO{$coro+0} = $coro;	536	$EXT_CORO{$coro+0} = $coro;
344		537
345	$coro	538	$coro
346	}	539	}
347		540
348	sub write_runtime {	541	=item fork_call { }, $args
349	my $runtime = cf::localdir . "/runtime";
350		542
351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	543	Executes the given code block with the given arguments in a seperate
352	or return;	544	process, returning the results. Everything must be serialisable with
		545	Coro::Storable. May, of course, block. Note that the executed sub may
		546	never block itself or use any form of event handling.
353		547
354	my $value = $cf::RUNTIME + 90 + 10;	548	=cut
355	# 10 is the runtime save interval, for a monotonic clock
356	# 60 allows for the watchdog to kill the server.
357		549
358	(aio_write $fh, 0, (length $value), $value, 0) <= 0	550	sub fork_call(&@) {
359	and return;	551	my ($cb, @args) = @_;
360		552
361	aio_fsync $fh	553	# we seemingly have to make a local copy of the whole thing,
362	and return;	554	# otherwise perl prematurely frees the stuff :/
		555	# TODO: investigate and fix (likely this will be rather laborious)
363		556
364	close $fh	557	my @res = Coro::Util::fork_eval {
365	or return;	558	reset_signals;
		559	&$cb
		560	}, @args;
366		561
367	aio_rename "$runtime~", $runtime	562	wantarray ? @res : $res[-1]
368	and return;	563	}
369		564
		565	=item $coin = coin_from_name $name
		566
		567	=cut
		568
		569	our %coin_alias = (
		570	"silver" => "silvercoin",
		571	"silvercoin" => "silvercoin",
		572	"silvercoins" => "silvercoin",
		573	"gold" => "goldcoin",
		574	"goldcoin" => "goldcoin",
		575	"goldcoins" => "goldcoin",
		576	"platinum" => "platinacoin",
		577	"platinumcoin" => "platinacoin",
		578	"platinumcoins" => "platinacoin",
		579	"platina" => "platinacoin",
		580	"platinacoin" => "platinacoin",
		581	"platinacoins" => "platinacoin",
		582	"royalty" => "royalty",
		583	"royalties" => "royalty",
		584	);
		585
		586	sub coin_from_name($) {
		587	$coin_alias{$_[0]}
		588	? cf::arch::find $coin_alias{$_[0]}
		589	: undef
		590	}
		591
		592	=item $value = cf::db_get $family => $key
		593
		594	Returns a single value from the environment database.
		595
		596	=item cf::db_put $family => $key => $value
		597
		598	Stores the given C<$value> in the family. It can currently store binary
		599	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		600
		601	=item $db = cf::db_table "name"
		602
		603	Create and/or open a new database table. The string must not be "db" and must be unique
		604	within each server.
		605
		606	=cut
		607
		608	sub db_table($) {
		609	my ($name) = @_;
		610	my $db = BDB::db_create $DB_ENV;
		611
		612	eval {
		613	$db->set_flags (BDB::CHKSUM);
		614
		615	utf8::encode $name;
		616	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		617	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		618	cf::cleanup "db_open(db): $!" if $!;
		619	};
		620	cf::cleanup "db_open(db): $@" if $@;
		621
		622	$db
		623	}
		624
		625	our $DB;
		626
		627	sub db_init {
		628	cf::sync_job {
		629	$DB ||= db_table "db";
		630	};
		631	}
		632
		633	sub db_get($$) {
		634	my $key = "$_[0]/$_[1]";
		635
		636	cf::sync_job {
		637	BDB::db_get $DB, undef, $key, my $data;
		638
		639	$! ? ()
		640	: $data
370	1	641	}
		642	}
		643
		644	sub db_put($$$) {
		645	BDB::dbreq_pri 4;
		646	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		647	}
		648
		649	=item cf::cache $id => [$paths...], $processversion => $process
		650
		651	Generic caching function that returns the value of the resource $id,
		652	caching and regenerating as required.
		653
		654	This function can block.
		655
		656	=cut
		657
		658	sub cache {
		659	my ($id, $src, $processversion, $process) = @_;
		660
		661	my $meta =
		662	join "\x00",
		663	$processversion,
		664	map {
		665	aio_stat $_
		666	and Carp::croak "$_: $!";
		667
		668	($_, (stat _)[7,9])
		669	} @$src;
		670
		671	my $dbmeta = db_get cache => "$id/meta";
		672	if ($dbmeta ne $meta) {
		673	# changed, we may need to process
		674
		675	my @data;
		676	my $md5;
		677
		678	for (0 .. $#$src) {
		679	0 <= aio_load $src->[$_], $data[$_]
		680	or Carp::croak "$src->[$_]: $!";
		681	}
		682
		683	# if processing is expensive, check
		684	# checksum first
		685	if (1) {
		686	$md5 =
		687	join "\x00",
		688	$processversion,
		689	map {
		690	cf::cede_to_tick;
		691	($src->[$_], Digest::MD5::md5_hex $data[$_])
		692	} 0.. $#$src;
		693
		694
		695	my $dbmd5 = db_get cache => "$id/md5";
		696	if ($dbmd5 eq $md5) {
		697	db_put cache => "$id/meta", $meta;
		698
		699	return db_get cache => "$id/data";
		700	}
		701	}
		702
		703	my $t1 = Time::HiRes::time;
		704	my $data = $process->(\@data);
		705	my $t2 = Time::HiRes::time;
		706
		707	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		708
		709	db_put cache => "$id/data", $data;
		710	db_put cache => "$id/md5" , $md5;
		711	db_put cache => "$id/meta", $meta;
		712
		713	return $data;
		714	}
		715
		716	db_get cache => "$id/data"
		717	}
		718
		719	=item cf::datalog type => key => value, ...
		720
		721	Log a datalog packet of the given type with the given key-value pairs.
		722
		723	=cut
		724
		725	sub datalog($@) {
		726	my ($type, %kv) = @_;
		727	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
371	}	728	}
372		729
373	=back	730	=back
374		731
375	=cut	732	=cut
376		733
377	#############################################################################	734	#############################################################################
378		735
379	=head2 ATTACHABLE OBJECTS	736	=head2 ATTACHABLE OBJECTS
380		737
381	Many objects in crossfire are so-called attachable objects. That means you can	738	Many objects in deliantra are so-called attachable objects. That means you can
382	attach callbacks/event handlers (a collection of which is called an "attachment")	739	attach callbacks/event handlers (a collection of which is called an "attachment")
383	to it. All such attachable objects support the following methods.	740	to it. All such attachable objects support the following methods.
384		741
385	In the following description, CLASS can be any of C<global>, C<object>	742	In the following description, CLASS can be any of C<global>, C<object>
386	C<player>, C<client> or C<map> (i.e. the attachable objects in	743	C<player>, C<client> or C<map> (i.e. the attachable objects in
387	crossfire+).	744	Deliantra).
388		745
389	=over 4	746	=over 4
390		747
391	=item $attachable->attach ($attachment, key => $value...)	748	=item $attachable->attach ($attachment, key => $value...)
392		749
…		…
436	=item cf::CLASS::attachment $name, ...	793	=item cf::CLASS::attachment $name, ...
437		794
438	Register an attachment by C<$name> through which attachable objects of the	795	Register an attachment by C<$name> through which attachable objects of the
439	given CLASS can refer to this attachment.	796	given CLASS can refer to this attachment.
440		797
441	Some classes such as crossfire maps and objects can specify attachments	798	Some classes such as deliantra maps and objects can specify attachments
442	that are attached at load/instantiate time, thus the need for a name.	799	that are attached at load/instantiate time, thus the need for a name.
443		800
444	These calls expect any number of the following handler/hook descriptions:	801	These calls expect any number of the following handler/hook descriptions:
445		802
446	=over 4	803	=over 4
…		…
555	$registry = $CB_TYPE[$object_type] ||= [];	912	$registry = $CB_TYPE[$object_type] ||= [];
556		913
557	} elsif ($type eq "subtype") {	914	} elsif ($type eq "subtype") {
558	defined $object_type or Carp::croak "subtype specified without type";	915	defined $object_type or Carp::croak "subtype specified without type";
559	my $object_subtype = shift @arg;	916	my $object_subtype = shift @arg;
560	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	917	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
561		918
562	} elsif ($type eq "package") {	919	} elsif ($type eq "package") {
563	my $pkg = shift @arg;	920	my $pkg = shift @arg;
564		921
565	while (my ($name, $id) = each %cb_id) {	922	while (my ($name, $id) = each %cb_id) {
…		…
594	_attach $registry, $klass, @attach;	951	_attach $registry, $klass, @attach;
595	}	952	}
596		953
597	$obj->{$name} = \%arg;	954	$obj->{$name} = \%arg;
598	} else {	955	} else {
599	warn "object uses attachment '$name' that is not available, postponing.\n";	956	warn "object uses attachment '$name' which is not available, postponing.\n";
600	}	957	}
601		958
602	$obj->{_attachment}{$name} = undef;	959	$obj->{_attachment}{$name} = undef;
603	}	960	}
604		961
…		…
606	if (ref $_[0]) {	963	if (ref $_[0]) {
607	_object_attach @_;	964	_object_attach @_;
608	} else {	965	} else {
609	_attach shift->_attach_registry, @_;	966	_attach shift->_attach_registry, @_;
610	}	967	}
		968	_recalc_want;
611	};	969	};
612		970
613	# all those should be optimised	971	# all those should be optimised
614	sub cf::attachable::detach {	972	sub cf::attachable::detach {
615	my ($obj, $name) = @_;	973	my ($obj, $name) = @_;
…		…
618	delete $obj->{_attachment}{$name};	976	delete $obj->{_attachment}{$name};
619	reattach ($obj);	977	reattach ($obj);
620	} else {	978	} else {
621	Carp::croak "cannot, currently, detach class attachments";	979	Carp::croak "cannot, currently, detach class attachments";
622	}	980	}
		981	_recalc_want;
623	};	982	};
624		983
625	sub cf::attachable::attached {	984	sub cf::attachable::attached {
626	my ($obj, $name) = @_;	985	my ($obj, $name) = @_;
627		986
…		…
642	";	1001	";
643	die if $@;	1002	die if $@;
644	}	1003	}
645		1004
646	our $override;	1005	our $override;
647	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1006	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
648		1007
649	sub override {	1008	sub override {
650	$override = 1;	1009	$override = 1;
651	@invoke_results = ();	1010	@INVOKE_RESULTS = (@_);
652	}	1011	}
653		1012
654	sub do_invoke {	1013	sub do_invoke {
655	my $event = shift;	1014	my $event = shift;
656	my $callbacks = shift;	1015	my $callbacks = shift;
657		1016
658	@invoke_results = ();	1017	@INVOKE_RESULTS = ();
659		1018
660	local $override;	1019	local $override;
661		1020
662	for (@$callbacks) {	1021	for (@$callbacks) {
663	eval { &{$_->[1]} };	1022	eval { &{$_->[1]} };
…		…
672	}	1031	}
673		1032
674	0	1033	0
675	}	1034	}
676		1035
677	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1036	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
678		1037
679	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1038	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
680		1039
681	Generate an object-specific event with the given arguments.	1040	Generate an object-specific event with the given arguments.
682		1041
683	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1042	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
684	removed in future versions), and there is no public API to access override	1043	removed in future versions), and there is no public API to access override
685	results (if you must, access C<@cf::invoke_results> directly).	1044	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
686		1045
687	=back	1046	=back
688		1047
689	=cut	1048	=cut
690		1049
691	#############################################################################	1050	#############################################################################
692	# object support	1051	# object support
		1052
		1053	sub _object_equal($$);
		1054	sub _object_equal($$) {
		1055	my ($a, $b) = @_;
		1056
		1057	return 0 unless (ref $a) eq (ref $b);
		1058
		1059	if ("HASH" eq ref $a) {
		1060	my @ka = keys %$a;
		1061	my @kb = keys %$b;
		1062
		1063	return 0 if @ka != @kb;
		1064
		1065	for (0 .. $#ka) {
		1066	return 0 unless $ka[$_] eq $kb[$_];
		1067	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1068	}
		1069
		1070	} elsif ("ARRAY" eq ref $a) {
		1071
		1072	return 0 if @$a != @$b;
		1073
		1074	for (0 .. $#$a) {
		1075	return 0 unless _object_equal $a->[$_], $b->[$_];
		1076	}
		1077
		1078	} elsif ($a ne $b) {
		1079	return 0;
		1080	}
		1081
		1082	1
		1083	}
		1084
		1085	our $SLOW_MERGES;#d#
		1086	sub _can_merge {
		1087	my ($ob1, $ob2) = @_;
		1088
		1089	++$SLOW_MERGES;#d#
		1090
		1091	# we do the slow way here
		1092	return _object_equal $ob1, $ob2
		1093	}
693		1094
694	sub reattach {	1095	sub reattach {
695	# basically do the same as instantiate, without calling instantiate	1096	# basically do the same as instantiate, without calling instantiate
696	my ($obj) = @_;	1097	my ($obj) = @_;
697		1098
		1099	# no longer needed after getting rid of delete_package?
698	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1100	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
699		1101
700	my $registry = $obj->registry;	1102	my $registry = $obj->registry;
701		1103
702	@$registry = ();	1104	@$registry = ();
703		1105
…		…
718	cf::attachable->attach (	1120	cf::attachable->attach (
719	prio => -1000000,	1121	prio => -1000000,
720	on_instantiate => sub {	1122	on_instantiate => sub {
721	my ($obj, $data) = @_;	1123	my ($obj, $data) = @_;
722		1124
723	$data = from_json $data;	1125	$data = decode_json $data;
724		1126
725	for (@$data) {	1127	for (@$data) {
726	my ($name, $args) = @$_;	1128	my ($name, $args) = @$_;
727		1129
728	$obj->attach ($name, %{$args || {} });	1130	$obj->attach ($name, %{$args || {} });
…		…
744	sub object_freezer_save {	1146	sub object_freezer_save {
745	my ($filename, $rdata, $objs) = @_;	1147	my ($filename, $rdata, $objs) = @_;
746		1148
747	sync_job {	1149	sync_job {
748	if (length $$rdata) {	1150	if (length $$rdata) {
		1151	utf8::decode (my $decname = $filename);
749	warn sprintf "saving %s (%d,%d)\n",	1152	warn sprintf "saving %s (%d,%d)\n",
750	$filename, length $$rdata, scalar @$objs;	1153	$decname, length $$rdata, scalar @$objs;
751		1154
752	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1155	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
753	chmod SAVE_MODE, $fh;	1156	aio_chmod $fh, SAVE_MODE;
754	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1157	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
755	aio_fsync $fh;	1158	aio_fsync $fh if $cf::USE_FSYNC;
756	close $fh;	1159	aio_close $fh;
757		1160
758	if (@$objs) {	1161	if (@$objs) {
759	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1162	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
760	chmod SAVE_MODE, $fh;	1163	aio_chmod $fh, SAVE_MODE;
761	my $data = Storable::nfreeze { version => 1, objs => $objs };	1164	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
762	aio_write $fh, 0, (length $data), $data, 0;	1165	aio_write $fh, 0, (length $data), $data, 0;
763	aio_fsync $fh;	1166	aio_fsync $fh if $cf::USE_FSYNC;
764	close $fh;	1167	aio_close $fh;
765	aio_rename "$filename.pst~", "$filename.pst";	1168	aio_rename "$filename.pst~", "$filename.pst";
766	}	1169	}
767	} else {	1170	} else {
768	aio_unlink "$filename.pst";	1171	aio_unlink "$filename.pst";
769	}	1172	}
…		…
774	}	1177	}
775	} else {	1178	} else {
776	aio_unlink $filename;	1179	aio_unlink $filename;
777	aio_unlink "$filename.pst";	1180	aio_unlink "$filename.pst";
778	}	1181	}
779	}	1182	};
780	}	1183	}
781		1184
782	sub object_freezer_as_string {	1185	sub object_freezer_as_string {
783	my ($rdata, $objs) = @_;	1186	my ($rdata, $objs) = @_;
784		1187
…		…
796	or return;	1199	or return;
797		1200
798	unless (aio_stat "$filename.pst") {	1201	unless (aio_stat "$filename.pst") {
799	(aio_load "$filename.pst", $av) >= 0	1202	(aio_load "$filename.pst", $av) >= 0
800	or return;	1203	or return;
		1204
801	$av = eval { (Storable::thaw $av)->{objs} };	1205	my $st = eval { Coro::Storable::thaw $av };
		1206	$av = $st->{objs};
802	}	1207	}
803		1208
		1209	utf8::decode (my $decname = $filename);
804	warn sprintf "loading %s (%d)\n",	1210	warn sprintf "loading %s (%d,%d)\n",
805	$filename, length $data, scalar @{$av || []};#d#	1211	$decname, length $data, scalar @{$av || []};
		1212
806	return ($data, $av);	1213	($data, $av)
807	}	1214	}
		1215
		1216	=head2 COMMAND CALLBACKS
		1217
		1218	=over 4
		1219
		1220	=cut
808		1221
809	#############################################################################	1222	#############################################################################
810	# command handling &c	1223	# command handling &c
811		1224
812	=item cf::register_command $name => \&callback($ob,$args);	1225	=item cf::register_command $name => \&callback($ob,$args);
…		…
825	push @{ $COMMAND{$name} }, [$caller, $cb];	1238	push @{ $COMMAND{$name} }, [$caller, $cb];
826	}	1239	}
827		1240
828	=item cf::register_extcmd $name => \&callback($pl,$packet);	1241	=item cf::register_extcmd $name => \&callback($pl,$packet);
829		1242
830	Register a callbackf ro execution when the client sends an extcmd packet.	1243	Register a callback for execution when the client sends an (synchronous)
		1244	extcmd packet. Ext commands will be processed in the order they are
		1245	received by the server, like other user commands. The first argument is
		1246	the logged-in player. Ext commands can only be processed after a player
		1247	has logged in successfully.
831		1248
832	If the callback returns something, it is sent back as if reply was being	1249	If the callback returns something, it is sent back as if reply was being
833	called.	1250	called.
834		1251
		1252	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1253
		1254	Register a callback for execution when the client sends an (asynchronous)
		1255	exticmd packet. Exti commands are processed by the server as soon as they
		1256	are received, i.e. out of order w.r.t. other commands. The first argument
		1257	is a client socket. Exti commands can be received anytime, even before
		1258	log-in.
		1259
		1260	If the callback returns something, it is sent back as if reply was being
		1261	called.
		1262
835	=cut	1263	=cut
836		1264
837	sub register_extcmd {	1265	sub register_extcmd {
838	my ($name, $cb) = @_;	1266	my ($name, $cb) = @_;
839		1267
840	$EXTCMD{$name} = $cb;	1268	$EXTCMD{$name} = $cb;
		1269	}
		1270
		1271	sub register_exticmd {
		1272	my ($name, $cb) = @_;
		1273
		1274	$EXTICMD{$name} = $cb;
841	}	1275	}
842		1276
843	cf::player->attach (	1277	cf::player->attach (
844	on_command => sub {	1278	on_command => sub {
845	my ($pl, $name, $params) = @_;	1279	my ($pl, $name, $params) = @_;
…		…
854	cf::override;	1288	cf::override;
855	},	1289	},
856	on_extcmd => sub {	1290	on_extcmd => sub {
857	my ($pl, $buf) = @_;	1291	my ($pl, $buf) = @_;
858		1292
859	my $msg = eval { from_json $buf };	1293	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
860		1294
861	if (ref $msg) {	1295	if (ref $msg) {
		1296	my ($type, $reply, @payload) =
		1297	"ARRAY" eq ref $msg
		1298	? @$msg
		1299	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1300
		1301	my @reply;
		1302
862	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1303	if (my $cb = $EXTCMD{$type}) {
863	if (my %reply = $cb->($pl, $msg)) {	1304	@reply = $cb->($pl, @payload);
864	$pl->ext_reply ($msg->{msgid}, %reply);
865	}
866	}	1305	}
		1306
		1307	$pl->ext_reply ($reply, @reply)
		1308	if $reply;
		1309
867	} else {	1310	} else {
868	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1311	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
869	}	1312	}
870		1313
871	cf::override;	1314	cf::override;
872	},	1315	},
873	);	1316	);
874		1317
875	sub load_extension {
876	my ($path) = @_;
877
878	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
879	my $base = $1;
880	my $pkg = $1;
881	$pkg =~ s/[^[:word:]]/_/g;
882	$pkg = "ext::$pkg";
883
884	warn "... loading '$path' into '$pkg'\n";
885
886	open my $fh, "<:utf8", $path
887	or die "$path: $!";
888
889	my $source =
890	"package $pkg; use strict; use utf8;\n"
891	. "#line 1 \"$path\"\n{\n"
892	. (do { local $/; <$fh> })
893	. "\n};\n1";
894
895	unless (eval $source) {
896	my $msg = $@ ? "$path: $@\n"
897	: "extension disabled.\n";
898	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
899	warn $@;
900	warn "mandatory extension failed to load, exiting.\n";
901	exit 1;
902	}
903	die $@;
904	}
905
906	push @EXTS, $pkg;
907	}
908
909	sub load_extensions {	1318	sub load_extensions {
		1319	cf::sync_job {
		1320	my %todo;
		1321
910	for my $ext (<$LIBDIR/*.ext>) {	1322	for my $path (<$LIBDIR/*.ext>) {
911	next unless -r $ext;	1323	next unless -r $path;
912	eval {	1324
913	load_extension $ext;	1325	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1326	my $base = $1;
		1327	my $pkg = $1;
		1328	$pkg =~ s/[^[:word:]]/_/g;
		1329	$pkg = "ext::$pkg";
		1330
		1331	open my $fh, "<:utf8", $path
		1332	or die "$path: $!";
		1333
		1334	my $source = do { local $/; <$fh> };
		1335
		1336	my %ext = (
		1337	path => $path,
		1338	base => $base,
		1339	pkg => $pkg,
		1340	);
		1341
		1342	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1343	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1344
		1345	$ext{source} =
		1346	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1347	. "#line 1 \"$path\"\n{\n"
		1348	. $source
		1349	. "\n};\n1";
		1350
		1351	$todo{$base} = \%ext;
		1352	}
		1353
		1354	my %done;
		1355	while (%todo) {
		1356	my $progress;
		1357
		1358	while (my ($k, $v) = each %todo) {
		1359	for (split /,\s*/, $v->{meta}{depends}) {
		1360	goto skip
		1361	unless exists $done{$_};
		1362	}
		1363
		1364	warn "... loading '$k' into '$v->{pkg}'\n";
		1365
		1366	unless (eval $v->{source}) {
		1367	my $msg = $@ ? "$v->{path}: $@\n"
		1368	: "$v->{base}: extension inactive.\n";
		1369
		1370	if (exists $v->{meta}{mandatory}) {
		1371	warn $msg;
		1372	cf::cleanup "mandatory extension failed to load, exiting.";
		1373	}
		1374
		1375	warn $msg;
		1376	}
		1377
		1378	$done{$k} = delete $todo{$k};
		1379	push @EXTS, $v->{pkg};
		1380	$progress = 1;
914	1	1381	}
915	} or warn "$ext not loaded: $@";	1382
		1383	skip:
		1384	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1385	unless $progress;
		1386	}
916	}	1387	};
917	}	1388	}
918		1389
919	#############################################################################	1390	#############################################################################
920		1391
		1392	=back
		1393
921	=head2 CORE EXTENSIONS	1394	=head2 CORE EXTENSIONS
922		1395
923	Functions and methods that extend core crossfire objects.	1396	Functions and methods that extend core deliantra objects.
924		1397
925	=cut	1398	=cut
926		1399
927	package cf::player;	1400	package cf::player;
928		1401
…		…
930		1403
931	=head3 cf::player	1404	=head3 cf::player
932		1405
933	=over 4	1406	=over 4
934		1407
		1408	=item cf::player::num_playing
		1409
		1410	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1411
		1412	=cut
		1413
		1414	sub num_playing {
		1415	scalar grep
		1416	$_->ob->map
		1417	&& !$_->hidden
		1418	&& !$_->ob->flag (cf::FLAG_WIZ),
		1419	cf::player::list
		1420	}
		1421
935	=item cf::player::find $login	1422	=item cf::player::find $login
936		1423
937	Returns the given player object, loading it if necessary (might block).	1424	Returns the given player object, loading it if necessary (might block).
938		1425
939	=cut	1426	=cut
940		1427
941	sub playerdir($) {	1428	sub playerdir($) {
942	cf::localdir	1429	"$PLAYERDIR/"
943	. "/"
944	. cf::playerdir
945	. "/"
946	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1430	. (ref $_[0] ? $_[0]->ob->name : $_[0])
947	}	1431	}
948		1432
949	sub path($) {	1433	sub path($) {
950	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1434	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
951		1435
952	(playerdir $login) . "/$login.pl"	1436	(playerdir $login) . "/playerdata"
953	}	1437	}
954		1438
955	sub find_active($) {	1439	sub find_active($) {
956	$cf::PLAYER{$_[0]}	1440	$cf::PLAYER{$_[0]}
957	and $cf::PLAYER{$_[0]}->active	1441	and $cf::PLAYER{$_[0]}->active
…		…
970	my $login = $_[0];	1454	my $login = $_[0];
971		1455
972	my $guard = cf::lock_acquire "user_find:$login";	1456	my $guard = cf::lock_acquire "user_find:$login";
973		1457
974	$cf::PLAYER{$_[0]} || do {	1458	$cf::PLAYER{$_[0]} || do {
975	my $pl = load_pl path $login	1459	# rename old playerfiles to new ones
		1460	#TODO: remove when no longer required
		1461	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1462	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1463	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1464	aio_unlink +(playerdir $login) . "/$login.pl";
		1465
		1466	my $f = new_from_file cf::object::thawer path $login
976	or return;	1467	or return;
		1468
		1469	my $pl = cf::player::load_pl $f
		1470	or return;
		1471
		1472	local $cf::PLAYER_LOADING{$login} = $pl;
		1473	$f->resolve_delayed_derefs;
977	$cf::PLAYER{$login} = $pl	1474	$cf::PLAYER{$login} = $pl
978	}	1475	}
979	}	1476	}
980	}	1477	}
981		1478
…		…
990	return if $pl->{deny_save};	1487	return if $pl->{deny_save};
991		1488
992	aio_mkdir playerdir $pl, 0770;	1489	aio_mkdir playerdir $pl, 0770;
993	$pl->{last_save} = $cf::RUNTIME;	1490	$pl->{last_save} = $cf::RUNTIME;
994		1491
		1492	cf::get_slot 0.01;
		1493
995	$pl->save_pl ($path);	1494	$pl->save_pl ($path);
996	Coro::cede;	1495	cf::cede_to_tick;
997	}	1496	}
998		1497
999	sub new($) {	1498	sub new($) {
1000	my ($login) = @_;	1499	my ($login) = @_;
1001		1500
…		…
1007	$cf::PLAYER{$login} = $self;	1506	$cf::PLAYER{$login} = $self;
1008		1507
1009	$self	1508	$self
1010	}	1509	}
1011		1510
		1511	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1512
		1513	=cut
		1514
		1515	sub send_msg {
		1516	my $ns = shift->ns
		1517	or return;
		1518	$ns->send_msg (@_);
		1519	}
		1520
1012	=item $pl->quit_character	1521	=item $pl->quit_character
1013		1522
1014	Nukes the player without looking back. If logged in, the connection will	1523	Nukes the player without looking back. If logged in, the connection will
1015	be destroyed. May block for a long time.	1524	be destroyed. May block for a long time.
1016		1525
1017	=cut	1526	=cut
1018		1527
1019	sub quit_character {	1528	sub quit_character {
1020	my ($pl) = @_;	1529	my ($pl) = @_;
1021		1530
		1531	my $name = $pl->ob->name;
		1532
1022	$pl->{deny_save} = 1;	1533	$pl->{deny_save} = 1;
1023	$pl->password ("*"); # this should lock out the player until we nuked the dir	1534	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1024		1535
1025	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1536	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1026	$pl->deactivate;	1537	$pl->deactivate;
		1538	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1539	$pl->ob->check_score;
1027	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1540	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1028	$pl->ns->destroy if $pl->ns;	1541	$pl->ns->destroy if $pl->ns;
1029		1542
1030	my $path = playerdir $pl;	1543	my $path = playerdir $pl;
1031	my $temp = "$path~$cf::RUNTIME~deleting~";	1544	my $temp = "$path~$cf::RUNTIME~deleting~";
1032	aio_rename $path, $temp;	1545	aio_rename $path, $temp;
1033	delete $cf::PLAYER{$pl->ob->name};	1546	delete $cf::PLAYER{$pl->ob->name};
1034	$pl->destroy;	1547	$pl->destroy;
		1548
		1549	my $prefix = qr<^~\Q$name\E/>;
		1550
		1551	# nuke player maps
		1552	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1553
1035	IO::AIO::aio_rmtree $temp;	1554	IO::AIO::aio_rmtree $temp;
		1555	}
		1556
		1557	=item $pl->kick
		1558
		1559	Kicks a player out of the game. This destroys the connection.
		1560
		1561	=cut
		1562
		1563	sub kick {
		1564	my ($pl, $kicker) = @_;
		1565
		1566	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1567	$pl->killer ("kicked");
		1568	$pl->ns->destroy;
1036	}	1569	}
1037		1570
1038	=item cf::player::list_logins	1571	=item cf::player::list_logins
1039		1572
1040	Returns am arrayref of all valid playernames in the system, can take a	1573	Returns am arrayref of all valid playernames in the system, can take a
1041	while and may block, so not sync_job-capable, ever.	1574	while and may block, so not sync_job-capable, ever.
1042		1575
1043	=cut	1576	=cut
1044		1577
1045	sub list_logins {	1578	sub list_logins {
1046	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1579	my $dirs = aio_readdir $PLAYERDIR
1047	or return [];	1580	or return [];
1048		1581
1049	my @logins;	1582	my @logins;
1050		1583
1051	for my $login (@$dirs) {	1584	for my $login (@$dirs) {
		1585	my $path = path $login;
		1586
		1587	# a .pst is a dead give-away for a valid player
		1588	# if no pst file found, open and chekc for blocked users
		1589	if (aio_stat "$path.pst") {
1052	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1590	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1053	aio_read $fh, 0, 512, my $buf, 0 or next;	1591	aio_read $fh, 0, 512, my $buf, 0 or next;
1054	$buf !~ /^password -------------$/m or next; # official not-valid tag	1592	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1593	}
1055		1594
1056	utf8::decode $login;	1595	utf8::decode $login;
1057	push @logins, $login;	1596	push @logins, $login;
1058	}	1597	}
1059		1598
…		…
1067		1606
1068	=cut	1607	=cut
1069		1608
1070	sub maps($) {	1609	sub maps($) {
1071	my ($pl) = @_;	1610	my ($pl) = @_;
		1611
		1612	$pl = ref $pl ? $pl->ob->name : $pl;
1072		1613
1073	my $files = aio_readdir playerdir $pl	1614	my $files = aio_readdir playerdir $pl
1074	or return;	1615	or return;
1075		1616
1076	my @paths;	1617	my @paths;
…		…
1078	for (@$files) {	1619	for (@$files) {
1079	utf8::decode $_;	1620	utf8::decode $_;
1080	next if /\.(?:pl|pst)$/;	1621	next if /\.(?:pl|pst)$/;
1081	next unless /^$PATH_SEP/o;	1622	next unless /^$PATH_SEP/o;
1082		1623
1083	s/\.map$//;	1624	push @paths, cf::map::normalise "~$pl/$_";
1084	push @paths, "~" . $pl->ob->name . "/" . $_;
1085	}	1625	}
1086		1626
1087	\@paths	1627	\@paths
1088	}	1628	}
1089		1629
		1630	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1631
		1632	Expand deliantra pod fragments into protocol xml.
		1633
1090	=item $player->ext_reply ($msgid, $msgtype, %msg)	1634	=item $player->ext_reply ($msgid, @msg)
1091		1635
1092	Sends an ext reply to the player.	1636	Sends an ext reply to the player.
1093		1637
1094	=cut	1638	=cut
1095		1639
1096	sub ext_reply($$$%) {	1640	sub ext_reply($$@) {
1097	my ($self, $id, %msg) = @_;	1641	my ($self, $id, @msg) = @_;
1098		1642
1099	$msg{msgid} = $id;	1643	$self->ns->ext_reply ($id, @msg)
1100
1101	$self->send ("ext " . cf::to_json \%msg);
1102	}	1644	}
1103		1645
1104	package cf;	1646	=item $player->ext_msg ($type, @msg)
		1647
		1648	Sends an ext event to the client.
		1649
		1650	=cut
		1651
		1652	sub ext_msg($$@) {
		1653	my ($self, $type, @msg) = @_;
		1654
		1655	$self->ns->ext_msg ($type, @msg);
		1656	}
		1657
		1658	=head3 cf::region
		1659
		1660	=over 4
		1661
		1662	=cut
		1663
		1664	package cf::region;
		1665
		1666	=item cf::region::find_by_path $path
		1667
		1668	Tries to decuce the likely region for a map knowing only its path.
		1669
		1670	=cut
		1671
		1672	sub find_by_path($) {
		1673	my ($path) = @_;
		1674
		1675	my ($match, $specificity);
		1676
		1677	for my $region (list) {
		1678	if ($region->{match} && $path =~ $region->{match}) {
		1679	($match, $specificity) = ($region, $region->specificity)
		1680	if $region->specificity > $specificity;
		1681	}
		1682	}
		1683
		1684	$match
		1685	}
1105		1686
1106	=back	1687	=back
1107
1108		1688
1109	=head3 cf::map	1689	=head3 cf::map
1110		1690
1111	=over 4	1691	=over 4
1112		1692
…		…
1124	our $MAX_RESET = 3600;	1704	our $MAX_RESET = 3600;
1125	our $DEFAULT_RESET = 3000;	1705	our $DEFAULT_RESET = 3000;
1126		1706
1127	sub generate_random_map {	1707	sub generate_random_map {
1128	my ($self, $rmp) = @_;	1708	my ($self, $rmp) = @_;
		1709
		1710	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1711
1129	# mit "rum" bekleckern, nicht	1712	# mit "rum" bekleckern, nicht
1130	$self->_create_random_map (	1713	$self->_create_random_map (
1131	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1714	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1132	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1715	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1133	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1716	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1167	my ($self, $merge) = @_;	1750	my ($self, $merge) = @_;
1168		1751
1169	# we have to keep some variables in memory intact	1752	# we have to keep some variables in memory intact
1170	local $self->{path};	1753	local $self->{path};
1171	local $self->{load_path};	1754	local $self->{load_path};
1172	local $self->{deny_save};
1173	local $self->{deny_reset};
1174		1755
1175	$self->SUPER::thawer_merge ($merge);	1756	$self->SUPER::thawer_merge ($merge);
1176	}	1757	}
1177		1758
1178	sub normalise {	1759	sub normalise {
1179	my ($path, $base) = @_;	1760	my ($path, $base) = @_;
1180		1761
1181	$path = "$path"; # make sure its a string	1762	$path = "$path"; # make sure its a string
		1763
		1764	$path =~ s/\.map$//;
1182		1765
1183	# map plan:	1766	# map plan:
1184	#	1767	#
1185	# /! non-realised random map exit (special hack!)	1768	# /! non-realised random map exit (special hack!)
1186	# {... are special paths that are not being touched	1769	# {... are special paths that are not being touched
…		…
1223	$self->init; # pass $1 etc.	1806	$self->init; # pass $1 etc.
1224	return $self;	1807	return $self;
1225	}	1808	}
1226	}	1809	}
1227		1810
1228	Carp::carp "unable to resolve path '$path' (base '$base').";	1811	Carp::cluck "unable to resolve path '$path' (base '$base').";
1229	()	1812	()
1230	}	1813	}
1231		1814
1232	sub init {	1815	sub init {
1233	my ($self) = @_;	1816	my ($self) = @_;
…		…
1248		1831
1249	# the original (read-only) location	1832	# the original (read-only) location
1250	sub load_path {	1833	sub load_path {
1251	my ($self) = @_;	1834	my ($self) = @_;
1252		1835
1253	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1836	"$MAPDIR/$self->{path}.map"
1254	}	1837	}
1255		1838
1256	# the temporary/swap location	1839	# the temporary/swap location
1257	sub save_path {	1840	sub save_path {
1258	my ($self) = @_;	1841	my ($self) = @_;
1259		1842
1260	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1843	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1261	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1844	"$TMPDIR/$path.map"
1262	}	1845	}
1263		1846
1264	# the unique path, undef == no special unique path	1847	# the unique path, undef == no special unique path
1265	sub uniq_path {	1848	sub uniq_path {
1266	my ($self) = @_;	1849	my ($self) = @_;
1267		1850
1268	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1851	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1269	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1852	"$UNIQUEDIR/$path"
1270	}	1853	}
1271		1854
1272	# and all this just because we cannot iterate over	1855	# and all this just because we cannot iterate over
1273	# all maps in C++...	1856	# all maps in C++...
1274	sub change_all_map_light {	1857	sub change_all_map_light {
…		…
1276		1859
1277	$_->change_map_light ($change)	1860	$_->change_map_light ($change)
1278	for grep $_->outdoor, values %cf::MAP;	1861	for grep $_->outdoor, values %cf::MAP;
1279	}	1862	}
1280		1863
		1864	sub decay_objects {
		1865	my ($self) = @_;
		1866
		1867	return if $self->{deny_reset};
		1868
		1869	$self->do_decay_objects;
		1870	}
		1871
1281	sub unlink_save {	1872	sub unlink_save {
1282	my ($self) = @_;	1873	my ($self) = @_;
1283		1874
1284	utf8::encode (my $save = $self->save_path);	1875	utf8::encode (my $save = $self->save_path);
1285	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1876	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
…		…
1288		1879
1289	sub load_header_from($) {	1880	sub load_header_from($) {
1290	my ($self, $path) = @_;	1881	my ($self, $path) = @_;
1291		1882
1292	utf8::encode $path;	1883	utf8::encode $path;
1293	aio_open $path, O_RDONLY, 0	1884	my $f = new_from_file cf::object::thawer $path
1294	or return;	1885	or return;
1295		1886
1296	$self->_load_header ($path)	1887	$self->_load_header ($f)
1297	or return;	1888	or return;
		1889
		1890	local $MAP_LOADING{$self->{path}} = $self;
		1891	$f->resolve_delayed_derefs;
1298		1892
1299	$self->{load_path} = $path;	1893	$self->{load_path} = $path;
1300		1894
1301	1	1895	1
1302	}	1896	}
…		…
1341	$self->load_header_orig	1935	$self->load_header_orig
1342	or return;	1936	or return;
1343	$self->prepare_orig;	1937	$self->prepare_orig;
1344	}	1938	}
1345		1939
		1940	$self->{deny_reset} = 1
		1941	if $self->no_reset;
		1942
		1943	$self->default_region (cf::region::find_by_path $self->{path})
		1944	unless $self->default_region;
		1945
1346	1	1946	1
1347	}	1947	}
1348		1948
1349	sub find;	1949	sub find;
1350	sub find {	1950	sub find {
1351	my ($path, $origin) = @_;	1951	my ($path, $origin) = @_;
1352		1952
1353	$path = normalise $path, $origin && $origin->path;	1953	$path = normalise $path, $origin && $origin->path;
1354		1954
		1955	cf::lock_wait "map_data:$path";#d#remove
1355	cf::lock_wait "map_find:$path";	1956	cf::lock_wait "map_find:$path";
1356		1957
1357	$cf::MAP{$path} || do {	1958	$cf::MAP{$path} || do {
		1959	my $guard1 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1358	my $guard = cf::lock_acquire "map_find:$path";	1960	my $guard2 = cf::lock_acquire "map_find:$path";
		1961
1359	my $map = new_from_path cf::map $path	1962	my $map = new_from_path cf::map $path
1360	or return;	1963	or return;
1361		1964
1362	$map->{last_save} = $cf::RUNTIME;	1965	$map->{last_save} = $cf::RUNTIME;
1363		1966
1364	$map->load_header	1967	$map->load_header
1365	or return;	1968	or return;
1366		1969
1367	if ($map->should_reset) {	1970	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1368	# doing this can freeze the server in a sync job, obviously	1971	# doing this can freeze the server in a sync job, obviously
1369	#$cf::WAIT_FOR_TICK->wait;	1972	#$cf::WAIT_FOR_TICK->wait;
		1973	undef $guard2;
		1974	undef $guard1;
1370	$map->reset;	1975	$map->reset;
1371	undef $guard;
1372	return find $path;	1976	return find $path;
1373	}	1977	}
1374		1978
1375	$cf::MAP{$path} = $map	1979	$cf::MAP{$path} = $map
1376	}	1980	}
…		…
1380	sub post_load { }	1984	sub post_load { }
1381		1985
1382	sub load {	1986	sub load {
1383	my ($self) = @_;	1987	my ($self) = @_;
1384		1988
		1989	local $self->{deny_reset} = 1; # loading can take a long time
		1990
1385	my $path = $self->{path};	1991	my $path = $self->{path};
		1992
		1993	{
1386	my $guard = cf::lock_acquire "map_load:$path";	1994	my $guard = cf::lock_acquire "map_data:$path";
1387		1995
		1996	return unless $self->valid;
1388	return if $self->in_memory != cf::MAP_SWAPPED;	1997	return unless $self->in_memory == cf::MAP_SWAPPED;
1389		1998
1390	$self->in_memory (cf::MAP_LOADING);	1999	$self->in_memory (cf::MAP_LOADING);
1391		2000
1392	$self->alloc;	2001	$self->alloc;
1393		2002
1394	$self->pre_load;	2003	$self->pre_load;
		2004	cf::cede_to_tick;
1395		2005
1396	$self->_load_objects ($self->{load_path}, 1)	2006	my $f = new_from_file cf::object::thawer $self->{load_path};
		2007	$f->skip_block;
		2008	$self->_load_objects ($f)
1397	or return;	2009	or return;
1398		2010
1399	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2011	$self->post_load_original
1400	if delete $self->{load_original};	2012	if delete $self->{load_original};
1401		2013
1402	if (my $uniq = $self->uniq_path) {	2014	if (my $uniq = $self->uniq_path) {
1403	utf8::encode $uniq;	2015	utf8::encode $uniq;
1404	if (aio_open $uniq, O_RDONLY, 0) {	2016	unless (aio_stat $uniq) {
		2017	if (my $f = new_from_file cf::object::thawer $uniq) {
1405	$self->clear_unique_items;	2018	$self->clear_unique_items;
1406	$self->_load_objects ($uniq, 0);	2019	$self->_load_objects ($f);
		2020	$f->resolve_delayed_derefs;
		2021	}
1407	}	2022	}
1408	}	2023	}
1409		2024
1410	Coro::cede;	2025	$f->resolve_delayed_derefs;
1411		2026
		2027	cf::cede_to_tick;
1412	# now do the right thing for maps	2028	# now do the right thing for maps
1413	$self->link_multipart_objects;	2029	$self->link_multipart_objects;
1414
1415	unless ($self->{deny_activate}) {
1416	$self->decay_objects;
1417	$self->fix_auto_apply;
1418	$self->update_buttons;
1419	Coro::cede;
1420	$self->set_darkness_map;
1421	$self->difficulty ($self->estimate_difficulty)	2030	$self->difficulty ($self->estimate_difficulty)
1422	unless $self->difficulty;	2031	unless $self->difficulty;
1423	Coro::cede;	2032	cf::cede_to_tick;
		2033
		2034	unless ($self->{deny_activate}) {
		2035	$self->decay_objects;
		2036	$self->fix_auto_apply;
		2037	$self->update_buttons;
		2038	cf::cede_to_tick;
		2039	$self->set_darkness_map;
		2040	cf::cede_to_tick;
1424	$self->activate;	2041	$self->activate;
		2042	}
		2043
		2044	$self->{last_save} = $cf::RUNTIME;
		2045	$self->last_access ($cf::RUNTIME);
		2046
		2047	$self->in_memory (cf::MAP_ACTIVE);
1425	}	2048	}
1426		2049
1427	$self->post_load;	2050	$self->post_load;
1428
1429	$self->in_memory (cf::MAP_IN_MEMORY);
1430	}	2051	}
1431		2052
1432	sub customise_for {	2053	sub customise_for {
1433	my ($self, $ob) = @_;	2054	my ($self, $ob) = @_;
1434		2055
1435	return find "~" . $ob->name . "/" . $self->{path}	2056	return find "~" . $ob->name . "/" . $self->{path}
1436	if $self->per_player;	2057	if $self->per_player;
1437		2058
		2059	# return find "?party/" . $ob->name . "/" . $self->{path}
		2060	# if $self->per_party;
		2061
1438	$self	2062	$self
1439	}	2063	}
1440		2064
1441	# find and load all maps in the 3x3 area around a map	2065	# find and load all maps in the 3x3 area around a map
1442	sub load_diag {	2066	sub load_neighbours {
1443	my ($map) = @_;	2067	my ($map) = @_;
1444		2068
1445	my @diag; # diagonal neighbours	2069	my @neigh; # diagonal neighbours
1446		2070
1447	for (0 .. 3) {	2071	for (0 .. 3) {
1448	my $neigh = $map->tile_path ($_)	2072	my $neigh = $map->tile_path ($_)
1449	or next;	2073	or next;
1450	$neigh = find $neigh, $map	2074	$neigh = find $neigh, $map
1451	or next;	2075	or next;
1452	$neigh->load;	2076	$neigh->load;
1453		2077
		2078	push @neigh,
1454	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2079	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1455	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2080	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1456	}	2081	}
1457		2082
1458	for (@diag) {	2083	for (grep defined $_->[0], @neigh) {
		2084	my ($path, $origin) = @$_;
1459	my $neigh = find @$_	2085	my $neigh = find $path, $origin
1460	or next;	2086	or next;
1461	$neigh->load;	2087	$neigh->load;
1462	}	2088	}
1463	}	2089	}
1464		2090
…		…
1469	}	2095	}
1470		2096
1471	sub do_load_sync {	2097	sub do_load_sync {
1472	my ($map) = @_;	2098	my ($map) = @_;
1473		2099
		2100	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2101	if $Coro::current == $Coro::main;
		2102
1474	cf::sync_job { $map->load };	2103	cf::sync_job { $map->load };
1475	}	2104	}
1476		2105
1477	our %MAP_PREFETCH;	2106	our %MAP_PREFETCH;
1478	our $MAP_PREFETCHER = undef;	2107	our $MAP_PREFETCHER = undef;
1479		2108
1480	sub find_async {	2109	sub find_async {
1481	my ($path, $origin) = @_;	2110	my ($path, $origin, $load) = @_;
1482		2111
1483	$path = normalise $path, $origin && $origin->{path};	2112	$path = normalise $path, $origin && $origin->{path};
1484		2113
1485	if (my $map = $cf::MAP{$path}) {	2114	if (my $map = $cf::MAP{$path}) {
1486	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2115	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1487	}	2116	}
1488		2117
1489	undef $MAP_PREFETCH{$path};	2118	$MAP_PREFETCH{$path} |= $load;
		2119
1490	$MAP_PREFETCHER ||= cf::async {	2120	$MAP_PREFETCHER ||= cf::async {
		2121	$Coro::current->{desc} = "map prefetcher";
		2122
1491	while (%MAP_PREFETCH) {	2123	while (%MAP_PREFETCH) {
1492	for my $path (keys %MAP_PREFETCH) {	2124	while (my ($k, $v) = each %MAP_PREFETCH) {
1493	my $map = find $path	2125	if (my $map = find $k) {
1494	or next;
1495	$map->load;	2126	$map->load if $v;
		2127	}
1496		2128
1497	delete $MAP_PREFETCH{$path};	2129	delete $MAP_PREFETCH{$k};
1498	}	2130	}
1499	}	2131	}
1500	undef $MAP_PREFETCHER;	2132	undef $MAP_PREFETCHER;
1501	};	2133	};
1502	$MAP_PREFETCHER->prio (6);	2134	$MAP_PREFETCHER->prio (6);
…		…
1505	}	2137	}
1506		2138
1507	sub save {	2139	sub save {
1508	my ($self) = @_;	2140	my ($self) = @_;
1509		2141
1510	my $lock = cf::lock_acquire "map_data:" . $self->path;	2142	my $lock = cf::lock_acquire "map_data:$self->{path}";
1511		2143
1512	$self->{last_save} = $cf::RUNTIME;	2144	$self->{last_save} = $cf::RUNTIME;
1513		2145
1514	return unless $self->dirty;	2146	return unless $self->dirty;
1515		2147
…		…
1521	return if $self->{deny_save};	2153	return if $self->{deny_save};
1522		2154
1523	local $self->{last_access} = $self->last_access;#d#	2155	local $self->{last_access} = $self->last_access;#d#
1524		2156
1525	cf::async {	2157	cf::async {
		2158	$Coro::current->{desc} = "map player save";
1526	$_->contr->save for $self->players;	2159	$_->contr->save for $self->players;
1527	};	2160	};
		2161
		2162	cf::get_slot 0.02;
1528		2163
1529	if ($uniq) {	2164	if ($uniq) {
1530	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2165	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1531	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2166	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1532	} else {	2167	} else {
…		…
1538	my ($self) = @_;	2173	my ($self) = @_;
1539		2174
1540	# save first because save cedes	2175	# save first because save cedes
1541	$self->save;	2176	$self->save;
1542		2177
1543	my $lock = cf::lock_acquire "map_data:" . $self->path;	2178	my $lock = cf::lock_acquire "map_data:$self->{path}";
1544		2179
1545	return if $self->players;	2180	return if $self->players;
1546	return if $self->in_memory != cf::MAP_IN_MEMORY;	2181	return if $self->in_memory != cf::MAP_ACTIVE;
1547	return if $self->{deny_save};	2182	return if $self->{deny_save};
1548		2183
		2184	$self->in_memory (cf::MAP_SWAPPED);
		2185
		2186	$self->deactivate;
		2187	$_->clear_links_to ($self) for values %cf::MAP;
1549	$self->clear;	2188	$self->clear;
1550	$self->in_memory (cf::MAP_SWAPPED);
1551	}	2189	}
1552		2190
1553	sub reset_at {	2191	sub reset_at {
1554	my ($self) = @_;	2192	my ($self) = @_;
1555		2193
1556	# TODO: safety, remove and allow resettable per-player maps	2194	# TODO: safety, remove and allow resettable per-player maps
1557	return 1e99 if $self->isa ("ext::map_per_player");#d#
1558	return 1e99 if $self->{deny_reset};	2195	return 1e99 if $self->{deny_reset};
1559		2196
1560	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2197	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1561	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2198	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1562		2199
…		…
1573	my ($self) = @_;	2210	my ($self) = @_;
1574		2211
1575	my $lock = cf::lock_acquire "map_data:$self->{path}";	2212	my $lock = cf::lock_acquire "map_data:$self->{path}";
1576		2213
1577	return if $self->players;	2214	return if $self->players;
1578	return if $self->isa ("ext::map_per_player");#d#
1579		2215
1580	warn "resetting map ", $self->path;#d#	2216	warn "resetting map ", $self->path;
		2217
		2218	$self->in_memory (cf::MAP_SWAPPED);
		2219
		2220	# need to save uniques path
		2221	unless ($self->{deny_save}) {
		2222	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2223
		2224	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2225	if $uniq;
		2226	}
1581		2227
1582	delete $cf::MAP{$self->path};	2228	delete $cf::MAP{$self->path};
1583		2229
1584	$self->in_memory (cf::MAP_SWAPPED);	2230	$self->deactivate;
		2231	$_->clear_links_to ($self) for values %cf::MAP;
1585	$self->clear;	2232	$self->clear;
1586
1587	$_->clear_links_to ($self) for values %cf::MAP;
1588		2233
1589	$self->unlink_save;	2234	$self->unlink_save;
1590	$self->destroy;	2235	$self->destroy;
1591	}	2236	}
1592		2237
1593	my $nuke_counter = "aaaa";	2238	my $nuke_counter = "aaaa";
1594		2239
1595	sub nuke {	2240	sub nuke {
1596	my ($self) = @_;	2241	my ($self) = @_;
1597		2242
		2243	{
		2244	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2245
1598	delete $cf::MAP{$self->path};	2246	delete $cf::MAP{$self->path};
1599		2247
1600	$self->unlink_save;	2248	$self->unlink_save;
1601		2249
1602	bless $self, "cf::map";	2250	bless $self, "cf::map";
1603	delete $self->{deny_reset};	2251	delete $self->{deny_reset};
1604	$self->{deny_save} = 1;	2252	$self->{deny_save} = 1;
1605	$self->reset_timeout (1);	2253	$self->reset_timeout (1);
1606	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2254	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1607		2255
1608	$cf::MAP{$self->path} = $self;	2256	$cf::MAP{$self->path} = $self;
		2257	}
1609		2258
1610	$self->reset; # polite request, might not happen	2259	$self->reset; # polite request, might not happen
		2260	}
		2261
		2262	=item $maps = cf::map::tmp_maps
		2263
		2264	Returns an arrayref with all map paths of currently instantiated and saved
		2265	maps. May block.
		2266
		2267	=cut
		2268
		2269	sub tmp_maps() {
		2270	[
		2271	map {
		2272	utf8::decode $_;
		2273	/\.map$/
		2274	? normalise $_
		2275	: ()
		2276	} @{ aio_readdir $TMPDIR or [] }
		2277	]
		2278	}
		2279
		2280	=item $maps = cf::map::random_maps
		2281
		2282	Returns an arrayref with all map paths of currently instantiated and saved
		2283	random maps. May block.
		2284
		2285	=cut
		2286
		2287	sub random_maps() {
		2288	[
		2289	map {
		2290	utf8::decode $_;
		2291	/\.map$/
		2292	? normalise "?random/$_"
		2293	: ()
		2294	} @{ aio_readdir $RANDOMDIR or [] }
		2295	]
1611	}	2296	}
1612		2297
1613	=item cf::map::unique_maps	2298	=item cf::map::unique_maps
1614		2299
1615	Returns an arrayref of paths of all shared maps that have	2300	Returns an arrayref of paths of all shared maps that have
1616	instantiated unique items. May block.	2301	instantiated unique items. May block.
1617		2302
1618	=cut	2303	=cut
1619		2304
1620	sub unique_maps() {	2305	sub unique_maps() {
1621	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2306	[
1622	or return;	2307	map {
1623
1624	my @paths;
1625
1626	for (@$files) {
1627	utf8::decode $_;	2308	utf8::decode $_;
1628	next if /\.pst$/;	2309	s/\.map$//; # TODO future compatibility hack
1629	next unless /^$PATH_SEP/o;	2310	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1630		2311	? ()
1631	s/\.map$//;	2312	: normalise $_
1632	push @paths, $_;	2313	} @{ aio_readdir $UNIQUEDIR or [] }
1633	}	2314	]
1634
1635	\@paths
1636	}	2315	}
1637
1638	package cf;
1639		2316
1640	=back	2317	=back
1641		2318
1642	=head3 cf::object	2319	=head3 cf::object
1643		2320
…		…
1647		2324
1648	=over 4	2325	=over 4
1649		2326
1650	=item $ob->inv_recursive	2327	=item $ob->inv_recursive
1651		2328
1652	Returns the inventory of the object _and_ their inventories, recursively.	2329	Returns the inventory of the object I<and> their inventories, recursively,
		2330	but I<not> the object itself.
1653		2331
1654	=cut	2332	=cut
1655		2333
1656	sub inv_recursive_;	2334	sub inv_recursive_;
1657	sub inv_recursive_ {	2335	sub inv_recursive_ {
…		…
1660		2338
1661	sub inv_recursive {	2339	sub inv_recursive {
1662	inv_recursive_ inv $_[0]	2340	inv_recursive_ inv $_[0]
1663	}	2341	}
1664		2342
		2343	=item $ref = $ob->ref
		2344
		2345	Creates and returns a persistent reference to an object that can be stored as a string.
		2346
		2347	=item $ob = cf::object::deref ($refstring)
		2348
		2349	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2350	even if the object actually exists. May block.
		2351
		2352	=cut
		2353
		2354	sub deref {
		2355	my ($ref) = @_;
		2356
		2357	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2358	my ($uuid, $name) = ($1, $2);
		2359	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2360	or return;
		2361	$pl->ob->uuid eq $uuid
		2362	or return;
		2363
		2364	$pl->ob
		2365	} else {
		2366	warn "$ref: cannot resolve object reference\n";
		2367	undef
		2368	}
		2369	}
		2370
1665	package cf;	2371	package cf;
1666		2372
1667	=back	2373	=back
1668		2374
1669	=head3 cf::object::player	2375	=head3 cf::object::player
…		…
1675	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2381	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1676	can be C<undef>. Does the right thing when the player is currently in a	2382	can be C<undef>. Does the right thing when the player is currently in a
1677	dialogue with the given NPC character.	2383	dialogue with the given NPC character.
1678		2384
1679	=cut	2385	=cut
		2386
		2387	our $SAY_CHANNEL = {
		2388	id => "say",
		2389	title => "Map",
		2390	reply => "say ",
		2391	tooltip => "Things said to and replied from npcs near you and other players on the same map only.",
		2392	};
		2393
		2394	our $CHAT_CHANNEL = {
		2395	id => "chat",
		2396	title => "Chat",
		2397	reply => "chat ",
		2398	tooltip => "Player chat and shouts, global to the server.",
		2399	};
1680		2400
1681	# rough implementation of a future "reply" method that works	2401	# rough implementation of a future "reply" method that works
1682	# with dialog boxes.	2402	# with dialog boxes.
1683	#TODO: the first argument must go, split into a $npc->reply_to ( method	2403	#TODO: the first argument must go, split into a $npc->reply_to ( method
1684	sub cf::object::player::reply($$$;$) {	2404	sub cf::object::player::reply($$$;$) {
…		…
1686		2406
1687	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2407	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1688		2408
1689	if ($self->{record_replies}) {	2409	if ($self->{record_replies}) {
1690	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2410	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2411
1691	} else {	2412	} else {
		2413	my $pl = $self->contr;
		2414
		2415	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2416	my $dialog = $pl->{npc_dialog};
		2417	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2418
		2419	} else {
1692	$msg = $npc->name . " says: $msg" if $npc;	2420	$msg = $npc->name . " says: $msg" if $npc;
1693	$self->message ($msg, $flags);	2421	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2422	}
1694	}	2423	}
		2424	}
		2425
		2426	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2427
		2428	=cut
		2429
		2430	sub cf::object::send_msg {
		2431	my $pl = shift->contr
		2432	or return;
		2433	$pl->send_msg (@_);
1695	}	2434	}
1696		2435
1697	=item $player_object->may ("access")	2436	=item $player_object->may ("access")
1698		2437
1699	Returns wether the given player is authorized to access resource "access"	2438	Returns wether the given player is authorized to access resource "access"
…		…
1712		2451
1713	=item $player_object->enter_link	2452	=item $player_object->enter_link
1714		2453
1715	Freezes the player and moves him/her to a special map (C<{link}>).	2454	Freezes the player and moves him/her to a special map (C<{link}>).
1716		2455
1717	The player should be reasonably safe there for short amounts of time. You	2456	The player should be reasonably safe there for short amounts of time (e.g.
1718	I<MUST> call C<leave_link> as soon as possible, though.	2457	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2458	though, as the palyer cannot control the character while it is on the link
		2459	map.
1719		2460
1720	Will never block.	2461	Will never block.
1721		2462
1722	=item $player_object->leave_link ($map, $x, $y)	2463	=item $player_object->leave_link ($map, $x, $y)
1723		2464
…		…
1731	=cut	2472	=cut
1732		2473
1733	sub link_map {	2474	sub link_map {
1734	unless ($LINK_MAP) {	2475	unless ($LINK_MAP) {
1735	$LINK_MAP = cf::map::find "{link}"	2476	$LINK_MAP = cf::map::find "{link}"
1736	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2477	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1737	$LINK_MAP->load;	2478	$LINK_MAP->load;
1738	}	2479	}
1739		2480
1740	$LINK_MAP	2481	$LINK_MAP
1741	}	2482	}
…		…
1746	$self->deactivate_recursive;	2487	$self->deactivate_recursive;
1747		2488
1748	return if UNIVERSAL::isa $self->map, "ext::map_link";	2489	return if UNIVERSAL::isa $self->map, "ext::map_link";
1749		2490
1750	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2491	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1751	if $self->map;	2492	if $self->map && $self->map->{path} ne "{link}";
1752		2493
1753	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2494	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1754	}	2495	}
1755		2496
1756	sub cf::object::player::leave_link {	2497	sub cf::object::player::leave_link {
1757	my ($self, $map, $x, $y) = @_;	2498	my ($self, $map, $x, $y) = @_;
		2499
		2500	return unless $self->contr->active;
1758		2501
1759	my $link_pos = delete $self->{_link_pos};	2502	my $link_pos = delete $self->{_link_pos};
1760		2503
1761	unless ($map) {	2504	unless ($map) {
1762	# restore original map position	2505	# restore original map position
…		…
1776	# use -1 or undef as default coordinates, not 0, 0	2519	# use -1 or undef as default coordinates, not 0, 0
1777	($x, $y) = ($map->enter_x, $map->enter_y)	2520	($x, $y) = ($map->enter_x, $map->enter_y)
1778	if $x <=0 && $y <= 0;	2521	if $x <=0 && $y <= 0;
1779		2522
1780	$map->load;	2523	$map->load;
1781	$map->load_diag;	2524	$map->load_neighbours;
1782		2525
1783	return unless $self->contr->active;	2526	return unless $self->contr->active;
		2527	$self->flag (cf::FLAG_DEBUG, 0);#d# temp
1784	$self->activate_recursive;	2528	$self->activate_recursive;
		2529
		2530	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1785	$self->enter_map ($map, $x, $y);	2531	$self->enter_map ($map, $x, $y);
1786	}	2532	}
1787		2533
1788	cf::player->attach (	2534	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1789	on_logout => sub {
1790	my ($pl) = @_;
1791		2535
1792	# abort map switching before logout	2536	Moves the player to the given map-path and coordinates by first freezing
1793	if ($pl->ob->{_link_pos}) {	2537	her, loading and preparing them map, calling the provided $check callback
1794	cf::sync_job {	2538	that has to return the map if sucecssful, and then unfreezes the player on
1795	$pl->ob->leave_link	2539	the new (success) or old (failed) map position. In either case, $done will
1796	};	2540	be called at the end of this process.
1797	}
1798	},
1799	on_login => sub {
1800	my ($pl) = @_;
1801		2541
1802	# try to abort aborted map switching on player login :)	2542	Note that $check will be called with a potentially non-loaded map, so if
1803	# should happen only on crashes	2543	it needs a loaded map it has to call C<< ->load >>.
1804	if ($pl->ob->{_link_pos}) {
1805	$pl->ob->enter_link;
1806	(async {
1807	# we need this sleep as the login has a concurrent enter_exit running
1808	# and this sleep increases chances of the player not ending up in scorn
1809	$pl->ob->reply (undef,
1810	"There was an internal problem at your last logout, "
1811	. "the server will try to bring you to your intended destination in a second.",
1812	cf::NDI_RED);
1813	Coro::Timer::sleep 1;
1814	$pl->ob->leave_link;
1815	})->prio (2);
1816	}
1817	},
1818	);
1819		2544
1820	=item $player_object->goto ($path, $x, $y)
1821
1822	=cut	2545	=cut
		2546
		2547	our $GOTOGEN;
1823		2548
1824	sub cf::object::player::goto {	2549	sub cf::object::player::goto {
1825	my ($self, $path, $x, $y) = @_;	2550	my ($self, $path, $x, $y, $check, $done) = @_;
		2551
		2552	# do generation counting so two concurrent goto's will be executed in-order
		2553	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1826		2554
1827	$self->enter_link;	2555	$self->enter_link;
1828		2556
1829	(async {	2557	(async {
1830	my $map = cf::map::find $path;	2558	$Coro::current->{desc} = "player::goto $path $x $y";
		2559
		2560	# *tag paths override both path and x|y
		2561	if ($path =~ /^\*(.*)$/) {
		2562	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2563	my $ob = $obs[rand @obs];
		2564
		2565	# see if we actually can go there
		2566	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2567	$ob = $obs[rand @obs];
		2568	} else {
		2569	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2570	}
		2571	# else put us there anyways for now #d#
		2572
		2573	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2574	} else {
		2575	($path, $x, $y) = (undef, undef, undef);
		2576	}
		2577	}
		2578
		2579	my $map = eval {
		2580	my $map = defined $path ? cf::map::find $path : undef;
		2581
		2582	if ($map) {
1831	$map = $map->customise_for ($self) if $map;	2583	$map = $map->customise_for ($self);
1832		2584	$map = $check->($map) if $check && $map;
1833	# warn "entering ", $map->path, " at ($x, $y)\n"	2585	} else {
1834	# if $map;
1835
1836	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2586	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2587	}
1837		2588
		2589	$map
		2590	};
		2591
		2592	if ($@) {
		2593	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2594	LOG llevError | logBacktrace, Carp::longmess $@;
		2595	}
		2596
		2597	if ($gen == $self->{_goto_generation}) {
		2598	delete $self->{_goto_generation};
1838	$self->leave_link ($map, $x, $y);	2599	$self->leave_link ($map, $x, $y);
		2600	}
		2601
		2602	$done->() if $done;
1839	})->prio (1);	2603	})->prio (1);
1840	}	2604	}
1841		2605
1842	=item $player_object->enter_exit ($exit_object)	2606	=item $player_object->enter_exit ($exit_object)
1843		2607
…		…
1863	}	2627	}
1864		2628
1865	sub prepare_random_map {	2629	sub prepare_random_map {
1866	my ($exit) = @_;	2630	my ($exit) = @_;
1867		2631
1868	my $guard = cf::lock_acquire "exit_prepare:$exit";
1869
1870	# all this does is basically replace the /! path by	2632	# all this does is basically replace the /! path by
1871	# a new random map path (?random/...) with a seed	2633	# a new random map path (?random/...) with a seed
1872	# that depends on the exit object	2634	# that depends on the exit object
1873		2635
1874	my $rmp = parse_random_map_params $exit->msg;	2636	my $rmp = parse_random_map_params $exit->msg;
1875		2637
1876	if ($exit->map) {	2638	if ($exit->map) {
1877	$rmp->{region} = $exit->map->region_name;	2639	$rmp->{region} = $exit->region->name;
1878	$rmp->{origin_map} = $exit->map->path;	2640	$rmp->{origin_map} = $exit->map->path;
1879	$rmp->{origin_x} = $exit->x;	2641	$rmp->{origin_x} = $exit->x;
1880	$rmp->{origin_y} = $exit->y;	2642	$rmp->{origin_y} = $exit->y;
		2643
		2644	$exit->map->touch;
1881	}	2645	}
1882		2646
1883	$rmp->{random_seed} ||= $exit->random_seed;	2647	$rmp->{random_seed} ||= $exit->random_seed;
1884		2648
1885	my $data = cf::to_json $rmp;	2649	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
1886	my $md5 = Digest::MD5::md5_hex $data;	2650	my $md5 = Digest::MD5::md5_hex $data;
1887	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2651	my $meta = "$RANDOMDIR/$md5.meta";
1888		2652
1889	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2653	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1890	aio_write $fh, 0, (length $data), $data, 0;	2654	aio_write $fh, 0, (length $data), $data, 0;
1891	undef $fh;	2655	undef $fh;
1892	aio_rename "$meta~", $meta;	2656	aio_rename "$meta~", $meta;
1893		2657
		2658	my $slaying = "?random/$md5";
		2659
		2660	if ($exit->valid) {
1894	$exit->slaying ("?random/$md5");	2661	$exit->slaying ("?random/$md5");
1895	$exit->msg (undef);	2662	$exit->msg (undef);
		2663	}
1896	}	2664	}
1897	}	2665	}
1898		2666
1899	sub cf::object::player::enter_exit {	2667	sub cf::object::player::enter_exit {
1900	my ($self, $exit) = @_;	2668	my ($self, $exit) = @_;
…		…
1902	return unless $self->type == cf::PLAYER;	2670	return unless $self->type == cf::PLAYER;
1903		2671
1904	$self->enter_link;	2672	$self->enter_link;
1905		2673
1906	(async {	2674	(async {
1907	$self->deactivate_recursive; # just to be sure	2675	$Coro::current->{desc} = "enter_exit";
		2676
1908	unless (eval {	2677	unless (eval {
		2678	$self->deactivate_recursive; # just to be sure
		2679
		2680	# random map handling
		2681	{
		2682	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2683
1909	prepare_random_map $exit	2684	prepare_random_map $exit
1910	if $exit->slaying eq "/!";	2685	if $exit->slaying eq "/!";
		2686	}
1911		2687
1912	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;	2688	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1913	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);	2689	my $x = $exit->stats->hp;
		2690	my $y = $exit->stats->sp;
1914		2691
		2692	$self->goto ($map, $x, $y);
		2693
		2694	# if exit is damned, update players death & WoR home-position
		2695	$self->contr->savebed ($map, $x, $y)
		2696	if $exit->flag (cf::FLAG_DAMNED);
		2697
1915	1;	2698	1
1916	}) {	2699	}) {
1917	$self->message ("Something went wrong deep within the crossfire server. "	2700	$self->message ("Something went wrong deep within the deliantra server. "
1918	. "I'll try to bring you back to the map you were before. "	2701	. "I'll try to bring you back to the map you were before. "
1919	. "Please report this to the dungeon master!",	2702	. "Please report this to the dungeon master!",
1920	cf::NDI_UNIQUE | cf::NDI_RED);	2703	cf::NDI_UNIQUE | cf::NDI_RED);
1921		2704
1922	warn "ERROR in enter_exit: $@";	2705	warn "ERROR in enter_exit: $@";
1923	$self->leave_link;	2706	$self->leave_link;
1924	}	2707	}
1925	})->prio (1);	2708	})->prio (1);
…		…
1938		2721
1939	sub cf::client::send_drawinfo {	2722	sub cf::client::send_drawinfo {
1940	my ($self, $text, $flags) = @_;	2723	my ($self, $text, $flags) = @_;
1941		2724
1942	utf8::encode $text;	2725	utf8::encode $text;
1943	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2726	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1944	}	2727	}
1945		2728
		2729	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2730
		2731	Send a drawinfo or msg packet to the client, formatting the msg for the
		2732	client if neccessary. C<$type> should be a string identifying the type of
		2733	the message, with C<log> being the default. If C<$color> is negative, suppress
		2734	the message unless the client supports the msg packet.
		2735
		2736	=cut
		2737
		2738	# non-persistent channels (usually the info channel)
		2739	our %CHANNEL = (
		2740	"c/identify" => {
		2741	id => "infobox",
		2742	title => "Identify",
		2743	reply => undef,
		2744	tooltip => "Items recently identified",
		2745	},
		2746	"c/examine" => {
		2747	id => "infobox",
		2748	title => "Examine",
		2749	reply => undef,
		2750	tooltip => "Signs and other items you examined",
		2751	},
		2752	"c/book" => {
		2753	id => "infobox",
		2754	title => "Book",
		2755	reply => undef,
		2756	tooltip => "The contents of a note or book",
		2757	},
		2758	"c/lookat" => {
		2759	id => "infobox",
		2760	title => "Look",
		2761	reply => undef,
		2762	tooltip => "What you saw there",
		2763	},
		2764	"c/who" => {
		2765	id => "infobox",
		2766	title => "Players",
		2767	reply => undef,
		2768	tooltip => "Shows players who are currently online",
		2769	},
		2770	"c/body" => {
		2771	id => "infobox",
		2772	title => "Body Parts",
		2773	reply => undef,
		2774	tooltip => "Shows which body parts you posess and are available",
		2775	},
		2776	"c/uptime" => {
		2777	id => "infobox",
		2778	title => "Uptime",
		2779	reply => undef,
		2780	tooltip => "How long the server has been running since last restart",
		2781	},
		2782	"c/mapinfo" => {
		2783	id => "infobox",
		2784	title => "Map Info",
		2785	reply => undef,
		2786	tooltip => "Information related to the maps",
		2787	},
		2788	"c/party" => {
		2789	id => "party",
		2790	title => "Party",
		2791	reply => "gsay ",
		2792	tooltip => "Messages and chat related to your party",
		2793	},
		2794	);
		2795
		2796	sub cf::client::send_msg {
		2797	my ($self, $channel, $msg, $color, @extra) = @_;
		2798
		2799	$msg = $self->pl->expand_cfpod ($msg)
		2800	unless $color & cf::NDI_VERBATIM;
		2801
		2802	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2803
		2804	# check predefined channels, for the benefit of C
		2805	if ($CHANNEL{$channel}) {
		2806	$channel = $CHANNEL{$channel};
		2807
		2808	$self->ext_msg (channel_info => $channel)
		2809	if $self->can_msg;
		2810
		2811	$channel = $channel->{id};
		2812
		2813	} elsif (ref $channel) {
		2814	# send meta info to client, if not yet sent
		2815	unless (exists $self->{channel}{$channel->{id}}) {
		2816	$self->{channel}{$channel->{id}} = $channel;
		2817	$self->ext_msg (channel_info => $channel)
		2818	if $self->can_msg;
		2819	}
		2820
		2821	$channel = $channel->{id};
		2822	}
		2823
		2824	return unless @extra || length $msg;
		2825
		2826	if ($self->can_msg) {
		2827	# default colour, mask it out
		2828	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2829	if $color & cf::NDI_DEF;
		2830
		2831	my $pkt = "msg "
		2832	. $self->{json_coder}->encode (
		2833	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2834	);
		2835
		2836	# try lzf for large packets
		2837	$pkt = "lzf " . Compress::LZF::compress $pkt
		2838	if 1024 <= length $pkt and $self->{can_lzf};
		2839
		2840	# split very large packets
		2841	if (8192 < length $pkt and $self->{can_lzf}) {
		2842	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2843	$pkt = "frag";
		2844	}
		2845
		2846	$self->send_packet ($pkt);
		2847	} else {
		2848	if ($color >= 0) {
		2849	# replace some tags by gcfclient-compatible ones
		2850	for ($msg) {
		2851	1 while
		2852	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2853	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2854	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2855	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2856	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2857	}
		2858
		2859	$color &= cf::NDI_COLOR_MASK;
		2860
		2861	utf8::encode $msg;
		2862
		2863	if (0 && $msg =~ /\[/) {
		2864	# COMMAND/INFO
		2865	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2866	} else {
		2867	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2868	$self->send_packet ("drawinfo $color $msg")
		2869	}
		2870	}
		2871	}
		2872	}
		2873
		2874	=item $client->ext_msg ($type, @msg)
		2875
		2876	Sends an ext event to the client.
		2877
		2878	=cut
		2879
		2880	sub cf::client::ext_msg($$@) {
		2881	my ($self, $type, @msg) = @_;
		2882
		2883	if ($self->extcmd == 2) {
		2884	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2885	} elsif ($self->extcmd == 1) { # TODO: remove
		2886	push @msg, msgtype => "event_$type";
		2887	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2888	}
		2889	}
		2890
		2891	=item $client->ext_reply ($msgid, @msg)
		2892
		2893	Sends an ext reply to the client.
		2894
		2895	=cut
		2896
		2897	sub cf::client::ext_reply($$@) {
		2898	my ($self, $id, @msg) = @_;
		2899
		2900	if ($self->extcmd == 2) {
		2901	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2902	} elsif ($self->extcmd == 1) {
		2903	#TODO: version 1, remove
		2904	unshift @msg, msgtype => "reply", msgid => $id;
		2905	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2906	}
		2907	}
1946		2908
1947	=item $success = $client->query ($flags, "text", \&cb)	2909	=item $success = $client->query ($flags, "text", \&cb)
1948		2910
1949	Queues a query to the client, calling the given callback with	2911	Queues a query to the client, calling the given callback with
1950	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2912	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1951	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2913	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1952		2914
1953	Queries can fail, so check the return code. Or don't, as queries will become	2915	Queries can fail, so check the return code. Or don't, as queries will
1954	reliable at some point in the future.	2916	become reliable at some point in the future.
1955		2917
1956	=cut	2918	=cut
1957		2919
1958	sub cf::client::query {	2920	sub cf::client::query {
1959	my ($self, $flags, $text, $cb) = @_;	2921	my ($self, $flags, $text, $cb) = @_;
…		…
1967	utf8::encode $text;	2929	utf8::encode $text;
1968	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2930	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1969		2931
1970	$self->send_packet ($self->{query_queue}[0][0])	2932	$self->send_packet ($self->{query_queue}[0][0])
1971	if @{ $self->{query_queue} } == 1;	2933	if @{ $self->{query_queue} } == 1;
		2934
		2935	1
1972	}	2936	}
1973		2937
1974	cf::client->attach (	2938	cf::client->attach (
		2939	on_connect => sub {
		2940	my ($ns) = @_;
		2941
		2942	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2943	},
1975	on_reply => sub {	2944	on_reply => sub {
1976	my ($ns, $msg) = @_;	2945	my ($ns, $msg) = @_;
1977		2946
1978	# this weird shuffling is so that direct followup queries	2947	# this weird shuffling is so that direct followup queries
1979	# get handled first	2948	# get handled first
1980	my $queue = delete $ns->{query_queue}	2949	my $queue = delete $ns->{query_queue}
1981	or return; # be conservative, not sure how that can happen, but we saw a crash here	2950	or return; # be conservative, not sure how that can happen, but we saw a crash here
1982		2951
1983	(shift @$queue)->[1]->($msg);	2952	(shift @$queue)->[1]->($msg);
		2953	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1984		2954
1985	push @{ $ns->{query_queue} }, @$queue;	2955	push @{ $ns->{query_queue} }, @$queue;
1986		2956
1987	if (@{ $ns->{query_queue} } == @$queue) {	2957	if (@{ $ns->{query_queue} } == @$queue) {
1988	if (@$queue) {	2958	if (@$queue) {
…		…
1990	} else {	2960	} else {
1991	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2961	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1992	}	2962	}
1993	}	2963	}
1994	},	2964	},
		2965	on_exticmd => sub {
		2966	my ($ns, $buf) = @_;
		2967
		2968	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2969
		2970	if (ref $msg) {
		2971	my ($type, $reply, @payload) =
		2972	"ARRAY" eq ref $msg
		2973	? @$msg
		2974	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2975
		2976	my @reply;
		2977
		2978	if (my $cb = $EXTICMD{$type}) {
		2979	@reply = $cb->($ns, @payload);
		2980	}
		2981
		2982	$ns->ext_reply ($reply, @reply)
		2983	if $reply;
		2984
		2985	} else {
		2986	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2987	}
		2988
		2989	cf::override;
		2990	},
1995	);	2991	);
1996		2992
1997	=item $client->async (\&cb)	2993	=item $client->async (\&cb)
1998		2994
1999	Create a new coroutine, running the specified callback. The coroutine will	2995	Create a new coroutine, running the specified callback. The coroutine will
…		…
2040	our $safe = new Safe "safe";	3036	our $safe = new Safe "safe";
2041	our $safe_hole = new Safe::Hole;	3037	our $safe_hole = new Safe::Hole;
2042		3038
2043	$SIG{FPE} = 'IGNORE';	3039	$SIG{FPE} = 'IGNORE';
2044		3040
2045	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3041	$safe->permit_only (Opcode::opset qw(
		3042	:base_core :base_mem :base_orig :base_math
		3043	grepstart grepwhile mapstart mapwhile
		3044	sort time
		3045	));
2046		3046
2047	# here we export the classes and methods available to script code	3047	# here we export the classes and methods available to script code
2048		3048
2049	=pod	3049	=pod
2050		3050
2051	The following fucntions and emthods are available within a safe environment:	3051	The following functions and methods are available within a safe environment:
2052		3052
2053	cf::object contr pay_amount pay_player map	3053	cf::object
		3054	contr pay_amount pay_player map x y force_find force_add destroy
		3055	insert remove name archname title slaying race decrease split
		3056
2054	cf::object::player player	3057	cf::object::player
2055	cf::player peaceful	3058	player
2056	cf::map trigger	3059
		3060	cf::player
		3061	peaceful
		3062
		3063	cf::map
		3064	trigger
2057		3065
2058	=cut	3066	=cut
2059		3067
2060	for (	3068	for (
2061	["cf::object" => qw(contr pay_amount pay_player map)],	3069	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3070	insert remove inv nrof name archname title slaying race
		3071	decrease split destroy change_exp)],
2062	["cf::object::player" => qw(player)],	3072	["cf::object::player" => qw(player)],
2063	["cf::player" => qw(peaceful)],	3073	["cf::player" => qw(peaceful)],
2064	["cf::map" => qw(trigger)],	3074	["cf::map" => qw(trigger)],
2065	) {	3075	) {
2066	no strict 'refs';	3076	no strict 'refs';
…		…
2137	=back	3147	=back
2138		3148
2139	=cut	3149	=cut
2140		3150
2141	#############################################################################	3151	#############################################################################
		3152	# the server's init and main functions
2142		3153
2143	=head2 EXTENSION DATABASE SUPPORT	3154	sub load_facedata($) {
		3155	my ($path) = @_;
2144		3156
2145	Crossfire maintains a very simple database for extension use. It can	3157	# HACK to clear player env face cache, we need some signal framework
2146	currently store anything that can be serialised using Storable, which	3158	# for this (global event?)
2147	excludes objects.	3159	%ext::player_env::MUSIC_FACE_CACHE = ();
2148		3160
2149	The parameter C<$family> should best start with the name of the extension	3161	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2150	using it, it should be unique.
2151		3162
2152	=over 4	3163	warn "loading facedata from $path\n";
2153		3164
2154	=item $hashref = cf::db_get $family	3165	my $facedata;
		3166	0 < aio_load $path, $facedata
		3167	or die "$path: $!";
2155		3168
2156	Return a hashref for use by the extension C<$family>, which can be	3169	$facedata = Coro::Storable::thaw $facedata;
2157	modified. After modifications, you have to call C<cf::db_dirty> or
2158	C<cf::db_sync>.
2159		3170
2160	=item $value = cf::db_get $family => $key	3171	$facedata->{version} == 2
		3172	or cf::cleanup "$path: version mismatch, cannot proceed.";
2161		3173
2162	Returns a single value from the database	3174	# patch in the exptable
2163		3175	$facedata->{resource}{"res/exp_table"} = {
2164	=item cf::db_put $family => $hashref	3176	type => FT_RSRC,
2165		3177	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2166	Stores the given family hashref into the database. Updates are delayed, if
2167	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2168
2169	=item cf::db_put $family => $key => $value
2170
2171	Stores the given C<$value> in the family hash. Updates are delayed, if you
2172	want the data to be synced to disk immediately, use C<cf::db_sync>.
2173
2174	=item cf::db_dirty
2175
2176	Marks the database as dirty, to be updated at a later time.
2177
2178	=item cf::db_sync
2179
2180	Immediately write the database to disk I<if it is dirty>.
2181
2182	=cut
2183
2184	our $DB;
2185
2186	{
2187	my $path = cf::localdir . "/database.pst";
2188
2189	sub db_load() {
2190	$DB = stat $path ? Storable::retrieve $path : { };
2191	}	3178	};
		3179	cf::cede_to_tick;
2192		3180
2193	my $pid;
2194
2195	sub db_save() {
2196	waitpid $pid, 0 if $pid;
2197	if (0 == ($pid = fork)) {
2198	$DB->{_meta}{version} = 1;
2199	Storable::nstore $DB, "$path~";
2200	rename "$path~", $path;
2201	cf::_exit 0 if defined $pid;
2202	}
2203	}	3181	{
		3182	my $faces = $facedata->{faceinfo};
2204		3183
2205	my $dirty;	3184	while (my ($face, $info) = each %$faces) {
		3185	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2206		3186
2207	sub db_sync() {	3187	cf::face::set_visibility $idx, $info->{visibility};
2208	db_save if $dirty;	3188	cf::face::set_magicmap $idx, $info->{magicmap};
2209	undef $dirty;	3189	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2210	}	3190	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2211		3191
2212	my $idle = Event->idle (	3192	cf::cede_to_tick;
2213	reentrant => 0,
2214	min => 10,
2215	max => 20,
2216	repeat => 0,
2217	data => WF_AUTOCANCEL,
2218	cb => \&db_sync,
2219	);
2220
2221	sub db_dirty() {
2222	$dirty = 1;
2223	$idle->start;
2224	}
2225
2226	sub db_get($;$) {
2227	@_ >= 2
2228	? $DB->{$_[0]}{$_[1]}
2229	: ($DB->{$_[0]} ||= { })
2230	}
2231
2232	sub db_put($$;$) {
2233	if (@_ >= 3) {
2234	$DB->{$_[0]}{$_[1]} = $_[2];
2235	} else {
2236	$DB->{$_[0]} = $_[1];
2237	}
2238	db_dirty;
2239	}
2240
2241	cf::global->attach (
2242	prio => 10000,
2243	on_cleanup => sub {
2244	db_sync;
2245	},	3193	}
2246	);
2247	}
2248		3194
2249	#############################################################################	3195	while (my ($face, $info) = each %$faces) {
2250	# the server's main()	3196	next unless $info->{smooth};
2251		3197
2252	sub cfg_load {	3198	my $idx = cf::face::find $face
		3199	or next;
		3200
		3201	if (my $smooth = cf::face::find $info->{smooth}) {
		3202	cf::face::set_smooth $idx, $smooth;
		3203	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3204	} else {
		3205	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3206	}
		3207
		3208	cf::cede_to_tick;
		3209	}
		3210	}
		3211
		3212	{
		3213	my $anims = $facedata->{animinfo};
		3214
		3215	while (my ($anim, $info) = each %$anims) {
		3216	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3217	cf::cede_to_tick;
		3218	}
		3219
		3220	cf::anim::invalidate_all; # d'oh
		3221	}
		3222
		3223	{
		3224	# TODO: for gcfclient pleasure, we should give resources
		3225	# that gcfclient doesn't grok a >10000 face index.
		3226	my $res = $facedata->{resource};
		3227
		3228	while (my ($name, $info) = each %$res) {
		3229	if (defined $info->{type}) {
		3230	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3231	my $data;
		3232
		3233	if ($info->{type} & 1) {
		3234	# prepend meta info
		3235
		3236	my $meta = $enc->encode ({
		3237	name => $name,
		3238	%{ $info->{meta} || {} },
		3239	});
		3240
		3241	$data = pack "(w/a*)*", $meta, $info->{data};
		3242	} else {
		3243	$data = $info->{data};
		3244	}
		3245
		3246	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3247	cf::face::set_type $idx, $info->{type};
		3248	} else {
		3249	$RESOURCE{$name} = $info;
		3250	}
		3251
		3252	cf::cede_to_tick;
		3253	}
		3254	}
		3255
		3256	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3257
		3258	1
		3259	}
		3260
		3261	cf::global->attach (on_resource_update => sub {
		3262	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3263	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3264
		3265	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3266	my $sound = $soundconf->{compat}[$_]
		3267	or next;
		3268
		3269	my $face = cf::face::find "sound/$sound->[1]";
		3270	cf::sound::set $sound->[0] => $face;
		3271	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3272	}
		3273
		3274	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3275	my $face = cf::face::find "sound/$v";
		3276	cf::sound::set $k => $face;
		3277	}
		3278	}
		3279	});
		3280
		3281	register_exticmd fx_want => sub {
		3282	my ($ns, $want) = @_;
		3283
		3284	while (my ($k, $v) = each %$want) {
		3285	$ns->fx_want ($k, $v);
		3286	}
		3287	};
		3288
		3289	sub load_resource_file($) {
		3290	my $guard = lock_acquire "load_resource_file";
		3291
		3292	my $status = load_resource_file_ $_[0];
		3293	get_slot 0.1, 100;
		3294	cf::arch::commit_load;
		3295
		3296	$status
		3297	}
		3298
		3299	sub reload_regions {
		3300	# HACK to clear player env face cache, we need some signal framework
		3301	# for this (global event?)
		3302	%ext::player_env::MUSIC_FACE_CACHE = ();
		3303
		3304	load_resource_file "$MAPDIR/regions"
		3305	or die "unable to load regions file\n";
		3306
		3307	for (cf::region::list) {
		3308	$_->{match} = qr/$_->{match}/
		3309	if exists $_->{match};
		3310	}
		3311	}
		3312
		3313	sub reload_facedata {
		3314	load_facedata "$DATADIR/facedata"
		3315	or die "unable to load facedata\n";
		3316	}
		3317
		3318	sub reload_archetypes {
		3319	load_resource_file "$DATADIR/archetypes"
		3320	or die "unable to load archetypes\n";
		3321	}
		3322
		3323	sub reload_treasures {
		3324	load_resource_file "$DATADIR/treasures"
		3325	or die "unable to load treasurelists\n";
		3326	}
		3327
		3328	sub reload_resources {
		3329	warn "reloading resource files...\n";
		3330
		3331	reload_facedata;
		3332	reload_archetypes;
		3333	reload_regions;
		3334	reload_treasures;
		3335
		3336	warn "finished reloading resource files\n";
		3337	}
		3338
		3339	sub init {
		3340	my $guard = freeze_mainloop;
		3341
		3342	evthread_start IO::AIO::poll_fileno;
		3343
		3344	reload_resources;
		3345	}
		3346
		3347	sub reload_config {
2253	open my $fh, "<:utf8", cf::confdir . "/config"	3348	open my $fh, "<:utf8", "$CONFDIR/config"
2254	or return;	3349	or return;
2255		3350
2256	local $/;	3351	local $/;
2257	*CFG = YAML::Syck::Load <$fh>;	3352	*CFG = YAML::Load <$fh>;
2258		3353
2259	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3354	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2260		3355
2261	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3356	$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};	3357	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2268	};	3363	};
2269	warn $@ if $@;	3364	warn $@ if $@;
2270	}	3365	}
2271	}	3366	}
2272		3367
		3368	sub pidfile() {
		3369	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3370	or die "$PIDFILE: $!";
		3371	flock $fh, &Fcntl::LOCK_EX
		3372	or die "$PIDFILE: flock: $!";
		3373	$fh
		3374	}
		3375
		3376	# make sure only one server instance is running at any one time
		3377	sub atomic {
		3378	my $fh = pidfile;
		3379
		3380	my $pid = <$fh>;
		3381	kill 9, $pid if $pid > 0;
		3382
		3383	seek $fh, 0, 0;
		3384	print $fh $$;
		3385	}
		3386
2273	sub main {	3387	sub main {
		3388	atomic;
		3389
2274	# we must not ever block the main coroutine	3390	# we must not ever block the main coroutine
2275	local $Coro::idle = sub {	3391	local $Coro::idle = sub {
2276	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3392	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2277	(async {	3393	(async {
2278	Event::one_event;	3394	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3395	EV::loop EV::LOOP_ONESHOT;
2279	})->prio (Coro::PRIO_MAX);	3396	})->prio (Coro::PRIO_MAX);
2280	};	3397	};
2281		3398
2282	cfg_load;	3399	{
2283	db_load;	3400	my $guard = freeze_mainloop;
		3401	reload_config;
		3402	db_init;
2284	load_extensions;	3403	load_extensions;
2285		3404
2286	$TICK_WATCHER->start;	3405	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3406	}
		3407
		3408	utime time, time, $RUNTIMEFILE;
		3409
		3410	# no (long-running) fork's whatsoever before this point(!)
		3411	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3412
2287	Event::loop;	3413	EV::loop;
2288	}	3414	}
2289		3415
2290	#############################################################################	3416	#############################################################################
2291	# initialisation and cleanup	3417	# initialisation and cleanup
2292		3418
2293	# install some emergency cleanup handlers	3419	# install some emergency cleanup handlers
2294	BEGIN {	3420	BEGIN {
		3421	our %SIGWATCHER = ();
2295	for my $signal (qw(INT HUP TERM)) {	3422	for my $signal (qw(INT HUP TERM)) {
2296	Event->signal (	3423	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2297	reentrant => 0,
2298	data => WF_AUTOCANCEL,
2299	signal => $signal,
2300	prio => 0,
2301	cb => sub {
2302	cf::cleanup "SIG$signal";	3424	cf::cleanup "SIG$signal";
2303	},
2304	);	3425	};
		3426	}
		3427	}
		3428
		3429	sub write_runtime_sync {
		3430	# first touch the runtime file to show we are still running:
		3431	# the fsync below can take a very very long time.
		3432
		3433	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3434
		3435	my $guard = cf::lock_acquire "write_runtime";
		3436
		3437	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3438	or return;
		3439
		3440	my $value = $cf::RUNTIME + 90 + 10;
		3441	# 10 is the runtime save interval, for a monotonic clock
		3442	# 60 allows for the watchdog to kill the server.
		3443
		3444	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3445	and return;
		3446
		3447	# always fsync - this file is important
		3448	aio_fsync $fh
		3449	and return;
		3450
		3451	# touch it again to show we are up-to-date
		3452	aio_utime $fh, undef, undef;
		3453
		3454	close $fh
		3455	or return;
		3456
		3457	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3458	and return;
		3459
		3460	warn "runtime file written.\n";
		3461
2305	}	3462	1
		3463	}
		3464
		3465	our $uuid_lock;
		3466	our $uuid_skip;
		3467
		3468	sub write_uuid_sync($) {
		3469	$uuid_skip ||= $_[0];
		3470
		3471	return if $uuid_lock;
		3472	local $uuid_lock = 1;
		3473
		3474	my $uuid = "$LOCALDIR/uuid";
		3475
		3476	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3477	or return;
		3478
		3479	my $value = uuid_str $uuid_skip + uuid_seq uuid_cur;
		3480	$uuid_skip = 0;
		3481
		3482	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3483	and return;
		3484
		3485	# always fsync - this file is important
		3486	aio_fsync $fh
		3487	and return;
		3488
		3489	close $fh
		3490	or return;
		3491
		3492	aio_rename "$uuid~", $uuid
		3493	and return;
		3494
		3495	warn "uuid file written ($value).\n";
		3496
		3497	1
		3498
		3499	}
		3500
		3501	sub write_uuid($$) {
		3502	my ($skip, $sync) = @_;
		3503
		3504	$sync ? write_uuid_sync $skip
		3505	: async { write_uuid_sync $skip };
2306	}	3506	}
2307		3507
2308	sub emergency_save() {	3508	sub emergency_save() {
2309	my $freeze_guard = cf::freeze_mainloop;	3509	my $freeze_guard = cf::freeze_mainloop;
2310		3510
…		…
2316	# and maps saved/destroyed asynchronously.	3516	# and maps saved/destroyed asynchronously.
2317	warn "begin emergency player save\n";	3517	warn "begin emergency player save\n";
2318	for my $login (keys %cf::PLAYER) {	3518	for my $login (keys %cf::PLAYER) {
2319	my $pl = $cf::PLAYER{$login} or next;	3519	my $pl = $cf::PLAYER{$login} or next;
2320	$pl->valid or next;	3520	$pl->valid or next;
		3521	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2321	$pl->save;	3522	$pl->save;
2322	}	3523	}
2323	warn "end emergency player save\n";	3524	warn "end emergency player save\n";
2324		3525
2325	warn "begin emergency map save\n";	3526	warn "begin emergency map save\n";
…		…
2327	my $map = $cf::MAP{$path} or next;	3528	my $map = $cf::MAP{$path} or next;
2328	$map->valid or next;	3529	$map->valid or next;
2329	$map->save;	3530	$map->save;
2330	}	3531	}
2331	warn "end emergency map save\n";	3532	warn "end emergency map save\n";
		3533
		3534	warn "begin emergency database checkpoint\n";
		3535	BDB::db_env_txn_checkpoint $DB_ENV;
		3536	warn "end emergency database checkpoint\n";
		3537
		3538	warn "begin write uuid\n";
		3539	write_uuid_sync 1;
		3540	warn "end write uuid\n";
2332	};	3541	};
2333		3542
2334	warn "leave emergency perl save\n";	3543	warn "leave emergency perl save\n";
2335	}	3544	}
2336		3545
		3546	sub post_cleanup {
		3547	my ($make_core) = @_;
		3548
		3549	warn Carp::longmess "post_cleanup backtrace"
		3550	if $make_core;
		3551
		3552	my $fh = pidfile;
		3553	unlink $PIDFILE if <$fh> == $$;
		3554	}
		3555
		3556	# a safer delete_package, copied from Symbol
		3557	sub clear_package($) {
		3558	my $pkg = shift;
		3559
		3560	# expand to full symbol table name if needed
		3561	unless ($pkg =~ /^main::.*::$/) {
		3562	$pkg = "main$pkg" if $pkg =~ /^::/;
		3563	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3564	$pkg .= '::' unless $pkg =~ /::$/;
		3565	}
		3566
		3567	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3568	my $stem_symtab = *{$stem}{HASH};
		3569
		3570	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3571	or return;
		3572
		3573	# clear all symbols
		3574	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3575	for my $name (keys %$leaf_symtab) {
		3576	_gv_clear *{"$pkg$name"};
		3577	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3578	}
		3579	warn "cleared package #$pkg\n";#d#
		3580	}
		3581
		3582	our $RELOAD; # how many times to reload
		3583
2337	sub reload() {	3584	sub do_reload_perl() {
2338	# can/must only be called in main	3585	# can/must only be called in main
2339	if ($Coro::current != $Coro::main) {	3586	if ($Coro::current != $Coro::main) {
2340	warn "can only reload from main coroutine";	3587	warn "can only reload from main coroutine";
2341	return;	3588	return;
2342	}	3589	}
2343		3590
		3591	return if $RELOAD++;
		3592
		3593	while ($RELOAD) {
2344	warn "reloading...";	3594	warn "reloading...";
2345		3595
2346	warn "cancelling server ticker";	3596	warn "entering sync_job";
2347	$TICK_WATCHER->cancel;
2348		3597
		3598	cf::sync_job {
		3599	cf::write_runtime_sync; # external watchdog should not bark
2349	cf::emergency_save;	3600	cf::emergency_save;
		3601	cf::write_runtime_sync; # external watchdog should not bark
2350		3602
2351	eval {	3603	warn "syncing database to disk";
		3604	BDB::db_env_txn_checkpoint $DB_ENV;
		3605
2352	# if anything goes wrong in here, we should simply crash as we already saved	3606	# if anything goes wrong in here, we should simply crash as we already saved
2353		3607
2354	warn "syncing database to disk";
2355	cf::db_sync;
2356
2357	warn "cancelling all WF_AUTOCANCEL watchers";
2358	for (Event::all_watchers) {
2359	$_->cancel if $_->data & WF_AUTOCANCEL;
2360	}
2361
2362	warn "flushing outstanding aio requests";	3608	warn "flushing outstanding aio requests";
2363	for (;;) {	3609	while (IO::AIO::nreqs || BDB::nreqs) {
2364	IO::AIO::flush;	3610	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2365	Coro::cede;
2366	last unless IO::AIO::nreqs;
2367	warn "iterate...";
2368	}
2369
2370	warn "cancelling all extension coros";
2371	$_->cancel for values %EXT_CORO;
2372	%EXT_CORO = ();
2373
2374	warn "removing commands";
2375	%COMMAND = ();
2376
2377	warn "removing ext commands";
2378	%EXTCMD = ();
2379
2380	warn "unloading/nuking all extensions";
2381	for my $pkg (@EXTS) {
2382	warn "... unloading $pkg";
2383
2384	if (my $cb = $pkg->can ("unload")) {
2385	eval {
2386	$cb->($pkg);
2387	1
2388	} or warn "$pkg unloaded, but with errors: $@";
2389	}	3611	}
2390		3612
2391	warn "... nuking $pkg";	3613	warn "cancelling all extension coros";
2392	Symbol::delete_package $pkg;	3614	$_->cancel for values %EXT_CORO;
2393	}	3615	%EXT_CORO = ();
2394		3616
2395	warn "unloading all perl modules loaded from $LIBDIR";	3617	warn "removing commands";
2396	while (my ($k, $v) = each %INC) {	3618	%COMMAND = ();
2397	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2398		3619
		3620	warn "removing ext/exti commands";
		3621	%EXTCMD = ();
		3622	%EXTICMD = ();
		3623
		3624	warn "unloading/nuking all extensions";
		3625	for my $pkg (@EXTS) {
2399	warn "... unloading $k";	3626	warn "... unloading $pkg";
2400	delete $INC{$k};
2401		3627
2402	$k =~ s/\.pm$//;
2403	$k =~ s/\//::/g;
2404
2405	if (my $cb = $k->can ("unload_module")) {	3628	if (my $cb = $pkg->can ("unload")) {
		3629	eval {
2406	$cb->();	3630	$cb->($pkg);
		3631	1
		3632	} or warn "$pkg unloaded, but with errors: $@";
		3633	}
		3634
		3635	warn "... clearing $pkg";
		3636	clear_package $pkg;
2407	}	3637	}
2408		3638
2409	Symbol::delete_package $k;	3639	warn "unloading all perl modules loaded from $LIBDIR";
		3640	while (my ($k, $v) = each %INC) {
		3641	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3642
		3643	warn "... unloading $k";
		3644	delete $INC{$k};
		3645
		3646	$k =~ s/\.pm$//;
		3647	$k =~ s/\//::/g;
		3648
		3649	if (my $cb = $k->can ("unload_module")) {
		3650	$cb->();
		3651	}
		3652
		3653	clear_package $k;
2410	}	3654	}
2411		3655
2412	warn "getting rid of safe::, as good as possible";	3656	warn "getting rid of safe::, as good as possible";
2413	Symbol::delete_package "safe::$_"	3657	clear_package "safe::$_"
2414	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3658	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2415		3659
2416	warn "unloading cf.pm \"a bit\"";	3660	warn "unloading cf.pm \"a bit\"";
2417	delete $INC{"cf.pm"};	3661	delete $INC{"cf.pm"};
		3662	delete $INC{"cf/pod.pm"};
2418		3663
2419	# don't, removes xs symbols, too,	3664	# don't, removes xs symbols, too,
2420	# and global variables created in xs	3665	# and global variables created in xs
2421	#Symbol::delete_package __PACKAGE__;	3666	#clear_package __PACKAGE__;
2422		3667
2423	warn "unload completed, starting to reload now";	3668	warn "unload completed, starting to reload now";
2424		3669
2425	warn "reloading cf.pm";	3670	warn "reloading cf.pm";
2426	require cf;	3671	require cf;
2427	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3672	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2428		3673
2429	warn "loading config and database again";	3674	warn "loading config and database again";
2430	cf::cfg_load;	3675	cf::reload_config;
2431	cf::db_load;
2432		3676
2433	warn "loading extensions";	3677	warn "loading extensions";
2434	cf::load_extensions;	3678	cf::load_extensions;
2435		3679
2436	warn "reattaching attachments to objects/players";	3680	warn "reattaching attachments to objects/players";
2437	_global_reattach;	3681	_global_reattach; # objects, sockets
2438	warn "reattaching attachments to maps";	3682	warn "reattaching attachments to maps";
2439	reattach $_ for values %MAP;	3683	reattach $_ for values %MAP;
		3684	warn "reattaching attachments to players";
		3685	reattach $_ for values %PLAYER;
2440		3686
2441	warn "restarting server ticker";	3687	warn "leaving sync_job";
2442		3688
2443	$TICK_WATCHER->start;	3689	1
		3690	} or do {
		3691	warn $@;
		3692	cf::cleanup "error while reloading, exiting.";
		3693	};
		3694
		3695	warn "reloaded";
		3696	--$RELOAD;
		3697	}
		3698	};
		3699
		3700	our $RELOAD_WATCHER; # used only during reload
		3701
		3702	sub reload_perl() {
		3703	# doing reload synchronously and two reloads happen back-to-back,
		3704	# coro crashes during coro_state_free->destroy here.
		3705
		3706	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
		3707	do_reload_perl;
		3708	undef $RELOAD_WATCHER;
2444	};	3709	};
2445		3710	}
2446	if ($@) {
2447	warn $@;
2448	warn "error while reloading, exiting.";
2449	exit 1;
2450	}
2451
2452	warn "reloaded";
2453	};
2454
2455	our $RELOAD_WATCHER; # used only during reload
2456		3711
2457	register_command "reload" => sub {	3712	register_command "reload" => sub {
2458	my ($who, $arg) = @_;	3713	my ($who, $arg) = @_;
2459		3714
2460	if ($who->flag (FLAG_WIZ)) {	3715	if ($who->flag (FLAG_WIZ)) {
2461	$who->message ("reloading server.");	3716	$who->message ("reloading server.");
2462		3717	async {
2463	# doing reload synchronously and two reloads happen back-to-back,	3718	$Coro::current->{desc} = "perl_reload";
2464	# coro crashes during coro_state_free->destroy here.
2465
2466	$RELOAD_WATCHER ||= Event->timer (
2467	reentrant => 0,
2468	after => 0,
2469	data => WF_AUTOCANCEL,
2470	cb => sub {
2471	reload;	3719	reload_perl;
2472	undef $RELOAD_WATCHER;
2473	},
2474	);	3720	};
2475	}	3721	}
2476	};	3722	};
2477		3723
2478	unshift @INC, $LIBDIR;	3724	unshift @INC, $LIBDIR;
2479		3725
2480	my $bug_warning = 0;	3726	my $bug_warning = 0;
2481		3727
2482	$TICK_WATCHER = Event->timer (	3728	our @WAIT_FOR_TICK;
2483	reentrant => 0,	3729	our @WAIT_FOR_TICK_BEGIN;
2484	parked => 1,	3730
2485	prio => 0,	3731	sub wait_for_tick {
2486	at => $NEXT_TICK || $TICK,	3732	return if tick_inhibit || $Coro::current == $Coro::main;
2487	data => WF_AUTOCANCEL,	3733
2488	cb => sub {	3734	my $signal = new Coro::Signal;
		3735	push @WAIT_FOR_TICK, $signal;
		3736	$signal->wait;
		3737	}
		3738
		3739	sub wait_for_tick_begin {
		3740	return if tick_inhibit || $Coro::current == $Coro::main;
		3741
		3742	my $signal = new Coro::Signal;
		3743	push @WAIT_FOR_TICK_BEGIN, $signal;
		3744	$signal->wait;
		3745	}
		3746
		3747	sub tick {
2489	if ($Coro::current != $Coro::main) {	3748	if ($Coro::current != $Coro::main) {
2490	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3749	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2491	unless ++$bug_warning > 10;	3750	unless ++$bug_warning > 10;
2492	return;	3751	return;
2493	}	3752	}
2494		3753
2495	$NOW = Event::time;
2496
2497	cf::server_tick; # one server iteration	3754	cf::server_tick; # one server iteration
2498	$RUNTIME += $TICK;
2499	$NEXT_TICK += $TICK;
2500		3755
2501	$WAIT_FOR_TICK->broadcast;	3756	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2502	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3757	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2503		3758	Coro::async_pool {
2504	Event::sweep;	3759	$Coro::current->{desc} = "runtime saver";
2505	Coro::cede_notself;
2506
2507	# my $AFTER = Event::time;
2508	# warn $AFTER - $NOW;#d#
2509
2510	# if we are delayed by four ticks or more, skip them all
2511	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2512
2513	$TICK_WATCHER->at ($NEXT_TICK);
2514	$TICK_WATCHER->start;
2515	},
2516	);
2517
2518	IO::AIO::max_poll_time $TICK * 0.1;
2519
2520	undef $Coro::AIO::WATCHER;
2521	$AIO_POLL_WATCHER = Event->io (
2522	reentrant => 0,
2523	fd => IO::AIO::poll_fileno,
2524	poll => 'r',
2525	prio => 6,
2526	data => WF_AUTOCANCEL,
2527	cb => \&IO::AIO::poll_cb,
2528	);
2529
2530	$WRITE_RUNTIME_WATCHER = Event->timer (
2531	reentrant => 0,
2532	data => WF_AUTOCANCEL,
2533	after => 1,
2534	interval => 10,
2535	prio => 6, # keep it lowest so it acts like a watchdog
2536	cb => Coro::unblock_sub {
2537	write_runtime	3760	write_runtime_sync
2538	or warn "ERROR: unable to write runtime file: $!";	3761	or warn "ERROR: unable to write runtime file: $!";
		3762	};
2539	},	3763	}
2540	);	3764
		3765	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3766	$sig->send;
		3767	}
		3768	while (my $sig = shift @WAIT_FOR_TICK) {
		3769	$sig->send;
		3770	}
		3771
		3772	$LOAD = ($NOW - $TICK_START) / $TICK;
		3773	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3774
		3775	if (0) {
		3776	if ($NEXT_TICK) {
		3777	my $jitter = $TICK_START - $NEXT_TICK;
		3778	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3779	warn "jitter $JITTER\n";#d#
		3780	}
		3781	}
		3782	}
		3783
		3784	{
		3785	# configure BDB
		3786
		3787	BDB::min_parallel 8;
		3788	BDB::max_poll_reqs $TICK * 0.1;
		3789	$AnyEvent::BDB::WATCHER->priority (1);
		3790
		3791	unless ($DB_ENV) {
		3792	$DB_ENV = BDB::db_env_create;
		3793	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3794	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3795	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3796	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3797	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3798
		3799	cf::sync_job {
		3800	eval {
		3801	BDB::db_env_open
		3802	$DB_ENV,
		3803	$BDBDIR,
		3804	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3805	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3806	0666;
		3807
		3808	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3809	};
		3810
		3811	cf::cleanup "db_env_open(db): $@" if $@;
		3812	};
		3813	}
		3814
		3815	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3816	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3817	};
		3818	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3819	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3820	};
		3821	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3822	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3823	};
		3824	}
		3825
		3826	{
		3827	# configure IO::AIO
		3828
		3829	IO::AIO::min_parallel 8;
		3830	IO::AIO::max_poll_time $TICK * 0.1;
		3831	undef $AnyEvent::AIO::WATCHER;
		3832	}
		3833
		3834	my $_log_backtrace;
		3835
		3836	sub _log_backtrace {
		3837	my ($msg, @addr) = @_;
		3838
		3839	$msg =~ s/\n//;
		3840
		3841	# limit the # of concurrent backtraces
		3842	if ($_log_backtrace < 2) {
		3843	++$_log_backtrace;
		3844	my $perl_bt = Carp::longmess $msg;
		3845	async {
		3846	$Coro::current->{desc} = "abt $msg";
		3847
		3848	my @bt = fork_call {
		3849	@addr = map { sprintf "%x", $_ } @addr;
		3850	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3851	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3852	or die "addr2line: $!";
		3853
		3854	my @funcs;
		3855	my @res = <$fh>;
		3856	chomp for @res;
		3857	while (@res) {
		3858	my ($func, $line) = splice @res, 0, 2, ();
		3859	push @funcs, "[$func] $line";
		3860	}
		3861
		3862	@funcs
		3863	};
		3864
		3865	LOG llevInfo, "[ABT] $perl_bt\n";
		3866	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3867	LOG llevInfo, "[ABT] $_\n" for @bt;
		3868	--$_log_backtrace;
		3869	};
		3870	} else {
		3871	LOG llevInfo, "[ABT] $msg\n";
		3872	LOG llevInfo, "[ABT] [suppressed]\n";
		3873	}
		3874	}
		3875
		3876	# load additional modules
		3877	use cf::pod;
2541		3878
2542	END { cf::emergency_save }	3879	END { cf::emergency_save }
2543		3880
2544	1	3881	1
2545		3882

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