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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.253 by root, Wed Apr 18 17:32:07 2007 UTC vs.
Revision 1.474 by root, Thu Jul 16 21:42:56 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
		24	use 5.10.0;
3	use utf8;	25	use utf8;
4	use strict;	26	use strict qw(vars subs);
5		27
6	use Symbol;	28	use Symbol;
7	use List::Util;	29	use List::Util;
8	use Socket;	30	use Socket;
9	use Storable;	31	use EV;
10	use Event;
11	use Opcode;	32	use Opcode;
12	use Safe;	33	use Safe;
13	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
14		36
		37	use Guard ();
15	use Coro 3.61 ();	38	use Coro ();
16	use Coro::State;	39	use Coro::State;
17	use Coro::Handle;	40	use Coro::Handle;
		41	use Coro::EV;
18	use Coro::Event;	42	use Coro::AnyEvent;
19	use Coro::Timer;	43	use Coro::Timer;
20	use Coro::Signal;	44	use Coro::Signal;
21	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
22	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
23	use Coro::Storable;	50	use Coro::Storable;
		51	use Coro::Util ();
24		52
		53	use JSON::XS 2.01 ();
25	use BDB ();	54	use BDB ();
26	use Data::Dumper;	55	use Data::Dumper;
27	use Digest::MD5;	56	use Digest::MD5;
28	use Fcntl;	57	use Fcntl;
29	use YAML::Syck ();	58	use YAML ();
30	use IO::AIO 2.32 ();	59	use IO::AIO ();
31	use Time::HiRes;	60	use Time::HiRes;
32	use Compress::LZF;	61	use Compress::LZF;
		62	use Digest::MD5 ();
		63
		64	AnyEvent::detect;
33		65
34	# configure various modules to our taste	66	# configure various modules to our taste
35	#	67	#
36	$Storable::canonical = 1; # reduce rsync transfers	68	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	69	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		70
		71	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		72
		73	# make sure c-lzf reinitialises itself
		74	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	75	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
39		76
40	$Event::Eval = 1; # no idea why this is required, but it is	77	# strictly for debugging
41		78	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
43	$YAML::Syck::ImplicitUnicode = 1;
44
45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
46		79
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	80	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
48		81
49	our %COMMAND = ();	82	our %COMMAND = ();
50	our %COMMAND_TIME = ();	83	our %COMMAND_TIME = ();
51		84
52	our @EXTS = (); # list of extension package names	85	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	86	our %EXTCMD = ();
		87	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	88	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	89	our %EXT_MAP = (); # pluggable maps
56		90
57	our $RELOAD; # number of reloads so far	91	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	92	our @EVENT;
59		93
60	our $CONFDIR = confdir;	94	our $CONFDIR = confdir;
61	our $DATADIR = datadir;	95	our $DATADIR = datadir;
62	our $LIBDIR = "$DATADIR/ext";	96	our $LIBDIR = "$DATADIR/ext";
63	our $PODDIR = "$DATADIR/pod";	97	our $PODDIR = "$DATADIR/pod";
64	our $MAPDIR = "$DATADIR/" . mapdir;	98	our $MAPDIR = "$DATADIR/" . mapdir;
65	our $LOCALDIR = localdir;	99	our $LOCALDIR = localdir;
66	our $TMPDIR = "$LOCALDIR/" . tmpdir;	100	our $TMPDIR = "$LOCALDIR/" . tmpdir;
67	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;	101	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
68	our $PLAYERDIR = "$LOCALDIR/" . playerdir;	102	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
69	our $RANDOMDIR = "$LOCALDIR/random";	103	our $RANDOMDIR = "$LOCALDIR/random";
70	our $BDBDIR = "$LOCALDIR/db";	104	our $BDBDIR = "$LOCALDIR/db";
		105	our $PIDFILE = "$LOCALDIR/pid";
		106	our $RUNTIMEFILE = "$LOCALDIR/runtime";
		107
		108	our %RESOURCE;
71		109
72	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)	110	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
73	our $TICK_WATCHER;
74	our $AIO_POLL_WATCHER;
75	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written	111	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
76	our $NEXT_TICK;	112	our $NEXT_TICK;
77	our $NOW;
78	our $USE_FSYNC = 1; # use fsync to write maps - default off	113	our $USE_FSYNC = 1; # use fsync to write maps - default on
79		114
		115	our $BDB_DEADLOCK_WATCHER;
		116	our $BDB_CHECKPOINT_WATCHER;
80	our $BDB_POLL_WATCHER;	117	our $BDB_TRICKLE_WATCHER;
81	our $DB_ENV;	118	our $DB_ENV;
		119
		120	our @EXTRA_MODULES = qw(pod mapscript);
82		121
83	our %CFG;	122	our %CFG;
84		123
85	our $UPTIME; $UPTIME ||= time;	124	our $UPTIME; $UPTIME ||= time;
86	our $RUNTIME;	125	our $RUNTIME;
		126	our $NOW;
87		127
88	our %PLAYER; # all users	128	our (%PLAYER, %PLAYER_LOADING); # all users
89	our %MAP; # all maps	129	our (%MAP, %MAP_LOADING ); # all maps
90	our $LINK_MAP; # the special {link} map, which is always available	130	our $LINK_MAP; # the special {link} map, which is always available
91		131
92	# used to convert map paths into valid unix filenames by replacing / by ∕	132	# used to convert map paths into valid unix filenames by replacing / by ∕
93	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	133	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
94		134
		135	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		136	our $LOADAVG; # same thing, but with alpha-smoothing
		137	our $JITTER; # average jitter
		138	our $TICK_START; # for load detecting purposes
		139
		140	our @POST_INIT;
		141
		142	our $REATTACH_ON_RELOAD; # set to true to force object reattach on reload (slow)
		143	our $REALLY_UNLOOP; # never set to true, please :)
		144
95	binmode STDOUT;	145	binmode STDOUT;
96	binmode STDERR;	146	binmode STDERR;
97		147
98	# read virtual server time, if available	148	# read virtual server time, if available
99	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {	149	unless ($RUNTIME || !-e $RUNTIMEFILE) {
100	open my $fh, "<", "$LOCALDIR/runtime"	150	open my $fh, "<", $RUNTIMEFILE
101	or die "unable to read runtime file: $!";	151	or die "unable to read $RUNTIMEFILE file: $!";
102	$RUNTIME = <$fh> + 0.;	152	$RUNTIME = <$fh> + 0.;
103	}	153	}
		154
		155	eval "sub TICK() { $TICK } 1" or die;
104		156
105	mkdir $_	157	mkdir $_
106	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;	158	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
107		159
108	our $EMERGENCY_POSITION;	160	our $EMERGENCY_POSITION;
…		…
139		191
140	=item $cf::TICK	192	=item $cf::TICK
141		193
142	The interval between server ticks, in seconds.	194	The interval between server ticks, in seconds.
143		195
		196	=item $cf::LOADAVG
		197
		198	The current CPU load on the server (alpha-smoothed), as a value between 0
		199	(none) and 1 (overloaded), indicating how much time is spent on processing
		200	objects per tick. Healthy values are < 0.5.
		201
		202	=item $cf::LOAD
		203
		204	The raw value load value from the last tick.
		205
144	=item %cf::CFG	206	=item %cf::CFG
145		207
146	Configuration for the server, loaded from C</etc/crossfire/config>, or	208	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
147	from wherever your confdir points to.	209	from wherever your confdir points to.
148		210
149	=item cf::wait_for_tick, cf::wait_for_tick_begin	211	=item cf::wait_for_tick, cf::wait_for_tick_begin
150		212
151	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only	213	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
152	returns directly I<after> the tick processing (and consequently, can only wake one process	214	returns directly I<after> the tick processing (and consequently, can only wake one process
153	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.	215	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
154		216
		217	=item @cf::INVOKE_RESULTS
		218
		219	This array contains the results of the last C<invoke ()> call. When
		220	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		221	that call.
		222
155	=back	223	=back
156		224
157	=cut	225	=cut
158		226
159	BEGIN {	227	BEGIN {
…		…
161	my $msg = join "", @_;	229	my $msg = join "", @_;
162		230
163	$msg .= "\n"	231	$msg .= "\n"
164	unless $msg =~ /\n$/;	232	unless $msg =~ /\n$/;
165		233
166	$msg =~ s/([\x00-\x09\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	234	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
167		235
168	utf8::encode $msg;
169	LOG llevError, $msg;	236	LOG llevError, $msg;
170	};	237	};
171	}	238	}
		239
		240	$Coro::State::DIEHOOK = sub {
		241	return unless $^S eq 0; # "eq", not "=="
		242
		243	if ($Coro::current == $Coro::main) {#d#
		244	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		245	return;#d#
		246	}#d#
		247
		248	# kill coroutine otherwise
		249	warn Carp::longmess $_[0];
		250	Coro::terminate
		251	};
		252
		253	$SIG{__DIE__} = sub { }; #d#?
172		254
173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	255	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	256	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
175	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	257	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
176	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	258	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
177	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	259	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		260	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
178	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	261	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
179		262
180	# we bless all objects into (empty) derived classes to force a method lookup	263	# we bless all objects into (empty) derived classes to force a method lookup
181	# within the Safe compartment.	264	# within the Safe compartment.
182	for my $pkg (qw(	265	for my $pkg (qw(
183	cf::global cf::attachable	266	cf::global cf::attachable
184	cf::object cf::object::player	267	cf::object cf::object::player
185	cf::client cf::player	268	cf::client cf::player
186	cf::arch cf::living	269	cf::arch cf::living
		270	cf::map cf::mapspace
187	cf::map cf::party cf::region	271	cf::party cf::region
188	)) {	272	)) {
189	no strict 'refs';
190	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	273	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
191	}	274	}
192		275
193	$Event::DIED = sub {	276	$EV::DIED = sub {
194	warn "error in event callback: @_";	277	warn "error in event callback: @_";
195	};	278	};
		279
		280	#############################################################################
196		281
197	=head2 UTILITY FUNCTIONS	282	=head2 UTILITY FUNCTIONS
198		283
199	=over 4	284	=over 4
200		285
…		…
219	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	304	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
220	$d	305	$d
221	} || "[unable to dump $_[0]: '$@']";	306	} || "[unable to dump $_[0]: '$@']";
222	}	307	}
223		308
224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
225
226	=item $ref = cf::from_json $json	309	=item $ref = cf::decode_json $json
227		310
228	Converts a JSON string into the corresponding perl data structure.	311	Converts a JSON string into the corresponding perl data structure.
229		312
230	=item $json = cf::to_json $ref	313	=item $json = cf::encode_json $ref
231		314
232	Converts a perl data structure into its JSON representation.	315	Converts a perl data structure into its JSON representation.
233		316
		317	=cut
		318
		319	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		320
		321	sub encode_json($) { $json_coder->encode ($_[0]) }
		322	sub decode_json($) { $json_coder->decode ($_[0]) }
		323
		324	=item cf::post_init { BLOCK }
		325
		326	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		327	but I<before> the server starts ticking again.
		328
		329	The cdoeblock will have a single boolean argument to indicate whether this
		330	is a reload or not.
		331
		332	=cut
		333
		334	sub post_init(&) {
		335	push @POST_INIT, shift;
		336	}
		337
234	=item cf::lock_wait $string	338	=item cf::lock_wait $string
235		339
236	Wait until the given lock is available. See cf::lock_acquire.	340	Wait until the given lock is available. See cf::lock_acquire.
237		341
238	=item my $lock = cf::lock_acquire $string	342	=item my $lock = cf::lock_acquire $string
239		343
240	Wait until the given lock is available and then acquires it and returns	344	Wait until the given lock is available and then acquires it and returns
241	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	345	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
242	for example when the coroutine gets canceled), the lock is automatically	346	for example when the coroutine gets canceled), the lock is automatically
243	returned.	347	returned.
244		348
		349	Locks are *not* recursive, locking from the same coro twice results in a
		350	deadlocked coro.
		351
245	Lock names should begin with a unique identifier (for example, cf::map::find	352	Lock names should begin with a unique identifier (for example, cf::map::find
246	uses map_find and cf::map::load uses map_load).	353	uses map_find and cf::map::load uses map_load).
247		354
248	=item $locked = cf::lock_active $string	355	=item $locked = cf::lock_active $string
249		356
250	Return true if the lock is currently active, i.e. somebody has locked it.	357	Return true if the lock is currently active, i.e. somebody has locked it.
251		358
252	=cut	359	=cut
253		360
254	our %LOCK;	361	our $LOCKS = new Coro::SemaphoreSet;
255		362
256	sub lock_wait($) {	363	sub lock_wait($) {
257	my ($key) = @_;	364	$LOCKS->wait ($_[0]);
258
259	# wait for lock, if any
260	while ($LOCK{$key}) {
261	push @{ $LOCK{$key} }, $Coro::current;
262	Coro::schedule;
263	}
264	}	365	}
265		366
266	sub lock_acquire($) {	367	sub lock_acquire($) {
267	my ($key) = @_;	368	$LOCKS->guard ($_[0])
268
269	# wait, to be sure we are not locked
270	lock_wait $key;
271
272	$LOCK{$key} = [];
273
274	Coro::guard {
275	# wake up all waiters, to be on the safe side
276	$_->ready for @{ delete $LOCK{$key} };
277	}
278	}	369	}
279		370
280	sub lock_active($) {	371	sub lock_active($) {
281	my ($key) = @_;	372	$LOCKS->count ($_[0]) < 1
282
283	! ! $LOCK{$key}
284	}	373	}
285		374
286	sub freeze_mainloop {	375	sub freeze_mainloop {
287	return unless $TICK_WATCHER->is_active;	376	tick_inhibit_inc;
288		377
289	my $guard = Coro::guard {	378	&Guard::guard (\&tick_inhibit_dec);
290	$TICK_WATCHER->start;	379	}
		380
		381	=item cf::periodic $interval, $cb
		382
		383	Like EV::periodic, but randomly selects a starting point so that the actions
		384	get spread over timer.
		385
		386	=cut
		387
		388	sub periodic($$) {
		389	my ($interval, $cb) = @_;
		390
		391	my $start = rand List::Util::min 180, $interval;
		392
		393	EV::periodic $start, $interval, 0, $cb
		394	}
		395
		396	=item cf::get_slot $time[, $priority[, $name]]
		397
		398	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		399	This call blocks and returns only when you have at least C<$time> seconds
		400	of cpu time till the next tick. The slot is only valid till the next cede.
		401
		402	The optional C<$name> can be used to identify the job to run. It might be
		403	used for statistical purposes and should identify the same time-class.
		404
		405	Useful for short background jobs.
		406
		407	=cut
		408
		409	our @SLOT_QUEUE;
		410	our $SLOT_QUEUE;
		411
		412	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		413	$SLOT_QUEUE = Coro::async {
		414	$Coro::current->desc ("timeslot manager");
		415
		416	my $signal = new Coro::Signal;
		417
		418	while () {
		419	next_job:
		420	my $avail = cf::till_tick;
		421	if ($avail > 0.01) {
		422	for (0 .. $#SLOT_QUEUE) {
		423	if ($SLOT_QUEUE[$_][0] < $avail) {
		424	my $job = splice @SLOT_QUEUE, $_, 1, ();
		425	$job->[2]->send;
		426	Coro::cede;
		427	goto next_job;
		428	}
		429	}
		430	}
		431
		432	if (@SLOT_QUEUE) {
		433	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		434	push @cf::WAIT_FOR_TICK, $signal;
		435	$signal->wait;
		436	} else {
		437	Coro::schedule;
		438	}
291	};	439	}
292	$TICK_WATCHER->stop;	440	};
293	$guard	441
		442	sub get_slot($;$$) {
		443	return if tick_inhibit || $Coro::current == $Coro::main;
		444
		445	my ($time, $pri, $name) = @_;
		446
		447	$time = $TICK * .6 if $time > $TICK * .6;
		448	my $sig = new Coro::Signal;
		449
		450	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		451	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		452	$SLOT_QUEUE->ready;
		453	$sig->wait;
294	}	454	}
295		455
296	=item cf::async { BLOCK }	456	=item cf::async { BLOCK }
297		457
298	Currently the same as Coro::async_pool, meaning you cannot use	458	Currently the same as Coro::async_pool, meaning you cannot use
…		…
303		463
304	BEGIN { *async = \&Coro::async_pool }	464	BEGIN { *async = \&Coro::async_pool }
305		465
306	=item cf::sync_job { BLOCK }	466	=item cf::sync_job { BLOCK }
307		467
308	The design of crossfire+ requires that the main coro ($Coro::main) is	468	The design of Deliantra requires that the main coroutine ($Coro::main)
309	always able to handle events or runnable, as crossfire+ is only partly	469	is always able to handle events or runnable, as Deliantra is only
310	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	470	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		471	acceptable.
311		472
312	If it must be done, put the blocking parts into C<sync_job>. This will run	473	If it must be done, put the blocking parts into C<sync_job>. This will run
313	the given BLOCK in another coroutine while waiting for the result. The	474	the given BLOCK in another coroutine while waiting for the result. The
314	server will be frozen during this time, so the block should either finish	475	server will be frozen during this time, so the block should either finish
315	fast or be very important.	476	fast or be very important.
…		…
318		479
319	sub sync_job(&) {	480	sub sync_job(&) {
320	my ($job) = @_;	481	my ($job) = @_;
321		482
322	if ($Coro::current == $Coro::main) {	483	if ($Coro::current == $Coro::main) {
		484	my $time = EV::time;
		485
323	# this is the main coro, too bad, we have to block	486	# this is the main coro, too bad, we have to block
324	# till the operation succeeds, freezing the server :/	487	# till the operation succeeds, freezing the server :/
325		488
326	# TODO: use suspend/resume instead	489	LOG llevError, Carp::longmess "sync job";#d#
327	# (but this is cancel-safe)	490
328	my $freeze_guard = freeze_mainloop;	491	my $freeze_guard = freeze_mainloop;
329		492
330	my $busy = 1;	493	my $busy = 1;
331	my @res;	494	my @res;
332		495
333	(async {	496	(async {
		497	$Coro::current->desc ("sync job coro");
334	@res = eval { $job->() };	498	@res = eval { $job->() };
335	warn $@ if $@;	499	warn $@ if $@;
336	undef $busy;	500	undef $busy;
337	})->prio (Coro::PRIO_MAX);	501	})->prio (Coro::PRIO_MAX);
338		502
339	while ($busy) {	503	while ($busy) {
340	Coro::cede or Event::one_event;	504	if (Coro::nready) {
		505	Coro::cede_notself;
		506	} else {
		507	EV::loop EV::LOOP_ONESHOT;
341	}	508	}
		509	}
		510
		511	my $time = EV::time - $time;
		512
		513	$TICK_START += $time; # do not account sync jobs to server load
342		514
343	wantarray ? @res : $res[0]	515	wantarray ? @res : $res[0]
344	} else {	516	} else {
345	# we are in another coroutine, how wonderful, everything just works	517	# we are in another coroutine, how wonderful, everything just works
346		518
…		…
366	$EXT_CORO{$coro+0} = $coro;	538	$EXT_CORO{$coro+0} = $coro;
367		539
368	$coro	540	$coro
369	}	541	}
370		542
371	sub write_runtime {	543	=item fork_call { }, $args
372	my $guard = cf::lock_acquire "write_runtime";
373		544
374	my $runtime = "$LOCALDIR/runtime";	545	Executes the given code block with the given arguments in a seperate
		546	process, returning the results. Everything must be serialisable with
		547	Coro::Storable. May, of course, block. Note that the executed sub may
		548	never block itself or use any form of event handling.
375		549
376	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	550	=cut
377	or return;
378		551
379	my $value = $cf::RUNTIME + 90 + 10;	552	sub fork_call(&@) {
380	# 10 is the runtime save interval, for a monotonic clock	553	my ($cb, @args) = @_;
381	# 60 allows for the watchdog to kill the server.
382		554
383	(aio_write $fh, 0, (length $value), $value, 0) <= 0	555	# we seemingly have to make a local copy of the whole thing,
384	and return;	556	# otherwise perl prematurely frees the stuff :/
		557	# TODO: investigate and fix (likely this will be rather laborious)
385		558
386	# always fsync - this file is important	559	my @res = Coro::Util::fork_eval {
387	aio_fsync $fh	560	reset_signals;
388	and return;	561	&$cb
		562	}, @args;
389		563
390	close $fh	564	wantarray ? @res : $res[-1]
391	or return;	565	}
392		566
393	aio_rename "$runtime~", $runtime	567	=item $coin = coin_from_name $name
394	and return;
395		568
		569	=cut
		570
		571	our %coin_alias = (
		572	"silver" => "silvercoin",
		573	"silvercoin" => "silvercoin",
		574	"silvercoins" => "silvercoin",
		575	"gold" => "goldcoin",
		576	"goldcoin" => "goldcoin",
		577	"goldcoins" => "goldcoin",
		578	"platinum" => "platinacoin",
		579	"platinumcoin" => "platinacoin",
		580	"platinumcoins" => "platinacoin",
		581	"platina" => "platinacoin",
		582	"platinacoin" => "platinacoin",
		583	"platinacoins" => "platinacoin",
		584	"royalty" => "royalty",
		585	"royalties" => "royalty",
		586	);
		587
		588	sub coin_from_name($) {
		589	$coin_alias{$_[0]}
		590	? cf::arch::find $coin_alias{$_[0]}
		591	: undef
		592	}
		593
		594	=item $value = cf::db_get $family => $key
		595
		596	Returns a single value from the environment database.
		597
		598	=item cf::db_put $family => $key => $value
		599
		600	Stores the given C<$value> in the family. It can currently store binary
		601	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		602
		603	=item $db = cf::db_table "name"
		604
		605	Create and/or open a new database table. The string must not be "db" and must be unique
		606	within each server.
		607
		608	=cut
		609
		610	sub db_table($) {
		611	my ($name) = @_;
		612	my $db = BDB::db_create $DB_ENV;
		613
		614	eval {
		615	$db->set_flags (BDB::CHKSUM);
		616
		617	utf8::encode $name;
		618	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		619	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		620	cf::cleanup "db_open(db): $!" if $!;
		621	};
		622	cf::cleanup "db_open(db): $@" if $@;
		623
		624	$db
		625	}
		626
		627	our $DB;
		628
		629	sub db_init {
		630	cf::sync_job {
		631	$DB ||= db_table "db";
		632	};
		633	}
		634
		635	sub db_get($$) {
		636	my $key = "$_[0]/$_[1]";
		637
		638	cf::sync_job {
		639	BDB::db_get $DB, undef, $key, my $data;
		640
		641	$! ? ()
		642	: $data
396	1	643	}
		644	}
		645
		646	sub db_put($$$) {
		647	BDB::dbreq_pri 4;
		648	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		649	}
		650
		651	=item cf::cache $id => [$paths...], $processversion => $process
		652
		653	Generic caching function that returns the value of the resource $id,
		654	caching and regenerating as required.
		655
		656	This function can block.
		657
		658	=cut
		659
		660	sub cache {
		661	my ($id, $src, $processversion, $process) = @_;
		662
		663	my $meta =
		664	join "\x00",
		665	$processversion,
		666	map {
		667	aio_stat $_
		668	and Carp::croak "$_: $!";
		669
		670	($_, (stat _)[7,9])
		671	} @$src;
		672
		673	my $dbmeta = db_get cache => "$id/meta";
		674	if ($dbmeta ne $meta) {
		675	# changed, we may need to process
		676
		677	my @data;
		678	my $md5;
		679
		680	for (0 .. $#$src) {
		681	0 <= aio_load $src->[$_], $data[$_]
		682	or Carp::croak "$src->[$_]: $!";
		683	}
		684
		685	# if processing is expensive, check
		686	# checksum first
		687	if (1) {
		688	$md5 =
		689	join "\x00",
		690	$processversion,
		691	map {
		692	cf::cede_to_tick;
		693	($src->[$_], Digest::MD5::md5_hex $data[$_])
		694	} 0.. $#$src;
		695
		696
		697	my $dbmd5 = db_get cache => "$id/md5";
		698	if ($dbmd5 eq $md5) {
		699	db_put cache => "$id/meta", $meta;
		700
		701	return db_get cache => "$id/data";
		702	}
		703	}
		704
		705	my $t1 = Time::HiRes::time;
		706	my $data = $process->(\@data);
		707	my $t2 = Time::HiRes::time;
		708
		709	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		710
		711	db_put cache => "$id/data", $data;
		712	db_put cache => "$id/md5" , $md5;
		713	db_put cache => "$id/meta", $meta;
		714
		715	return $data;
		716	}
		717
		718	db_get cache => "$id/data"
397	}	719	}
398		720
399	=item cf::datalog type => key => value, ...	721	=item cf::datalog type => key => value, ...
400		722
401	Log a datalog packet of the given type with the given key-value pairs.	723	Log a datalog packet of the given type with the given key-value pairs.
…		…
413		735
414	#############################################################################	736	#############################################################################
415		737
416	=head2 ATTACHABLE OBJECTS	738	=head2 ATTACHABLE OBJECTS
417		739
418	Many objects in crossfire are so-called attachable objects. That means you can	740	Many objects in deliantra are so-called attachable objects. That means you can
419	attach callbacks/event handlers (a collection of which is called an "attachment")	741	attach callbacks/event handlers (a collection of which is called an "attachment")
420	to it. All such attachable objects support the following methods.	742	to it. All such attachable objects support the following methods.
421		743
422	In the following description, CLASS can be any of C<global>, C<object>	744	In the following description, CLASS can be any of C<global>, C<object>
423	C<player>, C<client> or C<map> (i.e. the attachable objects in	745	C<player>, C<client> or C<map> (i.e. the attachable objects in
424	crossfire+).	746	Deliantra).
425		747
426	=over 4	748	=over 4
427		749
428	=item $attachable->attach ($attachment, key => $value...)	750	=item $attachable->attach ($attachment, key => $value...)
429		751
…		…
473	=item cf::CLASS::attachment $name, ...	795	=item cf::CLASS::attachment $name, ...
474		796
475	Register an attachment by C<$name> through which attachable objects of the	797	Register an attachment by C<$name> through which attachable objects of the
476	given CLASS can refer to this attachment.	798	given CLASS can refer to this attachment.
477		799
478	Some classes such as crossfire maps and objects can specify attachments	800	Some classes such as deliantra maps and objects can specify attachments
479	that are attached at load/instantiate time, thus the need for a name.	801	that are attached at load/instantiate time, thus the need for a name.
480		802
481	These calls expect any number of the following handler/hook descriptions:	803	These calls expect any number of the following handler/hook descriptions:
482		804
483	=over 4	805	=over 4
…		…
592	$registry = $CB_TYPE[$object_type] ||= [];	914	$registry = $CB_TYPE[$object_type] ||= [];
593		915
594	} elsif ($type eq "subtype") {	916	} elsif ($type eq "subtype") {
595	defined $object_type or Carp::croak "subtype specified without type";	917	defined $object_type or Carp::croak "subtype specified without type";
596	my $object_subtype = shift @arg;	918	my $object_subtype = shift @arg;
597	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	919	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
598		920
599	} elsif ($type eq "package") {	921	} elsif ($type eq "package") {
600	my $pkg = shift @arg;	922	my $pkg = shift @arg;
601		923
602	while (my ($name, $id) = each %cb_id) {	924	while (my ($name, $id) = each %cb_id) {
…		…
631	_attach $registry, $klass, @attach;	953	_attach $registry, $klass, @attach;
632	}	954	}
633		955
634	$obj->{$name} = \%arg;	956	$obj->{$name} = \%arg;
635	} else {	957	} else {
636	warn "object uses attachment '$name' that is not available, postponing.\n";	958	warn "object uses attachment '$name' which is not available, postponing.\n";
637	}	959	}
638		960
639	$obj->{_attachment}{$name} = undef;	961	$obj->{_attachment}{$name} = undef;
640	}	962	}
641		963
…		…
643	if (ref $_[0]) {	965	if (ref $_[0]) {
644	_object_attach @_;	966	_object_attach @_;
645	} else {	967	} else {
646	_attach shift->_attach_registry, @_;	968	_attach shift->_attach_registry, @_;
647	}	969	}
		970	_recalc_want;
648	};	971	};
649		972
650	# all those should be optimised	973	# all those should be optimised
651	sub cf::attachable::detach {	974	sub cf::attachable::detach {
652	my ($obj, $name) = @_;	975	my ($obj, $name) = @_;
…		…
655	delete $obj->{_attachment}{$name};	978	delete $obj->{_attachment}{$name};
656	reattach ($obj);	979	reattach ($obj);
657	} else {	980	} else {
658	Carp::croak "cannot, currently, detach class attachments";	981	Carp::croak "cannot, currently, detach class attachments";
659	}	982	}
		983	_recalc_want;
660	};	984	};
661		985
662	sub cf::attachable::attached {	986	sub cf::attachable::attached {
663	my ($obj, $name) = @_;	987	my ($obj, $name) = @_;
664		988
…		…
679	";	1003	";
680	die if $@;	1004	die if $@;
681	}	1005	}
682		1006
683	our $override;	1007	our $override;
684	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1008	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
685		1009
686	sub override {	1010	sub override {
687	$override = 1;	1011	$override = 1;
688	@invoke_results = ();	1012	@INVOKE_RESULTS = (@_);
689	}	1013	}
690		1014
691	sub do_invoke {	1015	sub do_invoke {
692	my $event = shift;	1016	my $event = shift;
693	my $callbacks = shift;	1017	my $callbacks = shift;
694		1018
695	@invoke_results = ();	1019	@INVOKE_RESULTS = ();
696		1020
697	local $override;	1021	local $override;
698		1022
699	for (@$callbacks) {	1023	for (@$callbacks) {
700	eval { &{$_->[1]} };	1024	eval { &{$_->[1]} };
…		…
709	}	1033	}
710		1034
711	0	1035	0
712	}	1036	}
713		1037
714	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1038	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
715		1039
716	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1040	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
717		1041
718	Generate an object-specific event with the given arguments.	1042	Generate an object-specific event with the given arguments.
719		1043
720	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1044	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
721	removed in future versions), and there is no public API to access override	1045	removed in future versions), and there is no public API to access override
722	results (if you must, access C<@cf::invoke_results> directly).	1046	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
723		1047
724	=back	1048	=back
725		1049
726	=cut	1050	=cut
727		1051
728	#############################################################################	1052	#############################################################################
729	# object support	1053	# object support
		1054
		1055	sub _object_equal($$);
		1056	sub _object_equal($$) {
		1057	my ($a, $b) = @_;
		1058
		1059	return 0 unless (ref $a) eq (ref $b);
		1060
		1061	if ("HASH" eq ref $a) {
		1062	my @ka = keys %$a;
		1063	my @kb = keys %$b;
		1064
		1065	return 0 if @ka != @kb;
		1066
		1067	for (0 .. $#ka) {
		1068	return 0 unless $ka[$_] eq $kb[$_];
		1069	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1070	}
		1071
		1072	} elsif ("ARRAY" eq ref $a) {
		1073
		1074	return 0 if @$a != @$b;
		1075
		1076	for (0 .. $#$a) {
		1077	return 0 unless _object_equal $a->[$_], $b->[$_];
		1078	}
		1079
		1080	} elsif ($a ne $b) {
		1081	return 0;
		1082	}
		1083
		1084	1
		1085	}
		1086
		1087	our $SLOW_MERGES;#d#
		1088	sub _can_merge {
		1089	my ($ob1, $ob2) = @_;
		1090
		1091	++$SLOW_MERGES;#d#
		1092
		1093	# we do the slow way here
		1094	return _object_equal $ob1, $ob2
		1095	}
730		1096
731	sub reattach {	1097	sub reattach {
732	# basically do the same as instantiate, without calling instantiate	1098	# basically do the same as instantiate, without calling instantiate
733	my ($obj) = @_;	1099	my ($obj) = @_;
734		1100
		1101	# no longer needed after getting rid of delete_package?
735	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1102	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
736		1103
737	my $registry = $obj->registry;	1104	my $registry = $obj->registry;
738		1105
739	@$registry = ();	1106	@$registry = ();
740		1107
…		…
755	cf::attachable->attach (	1122	cf::attachable->attach (
756	prio => -1000000,	1123	prio => -1000000,
757	on_instantiate => sub {	1124	on_instantiate => sub {
758	my ($obj, $data) = @_;	1125	my ($obj, $data) = @_;
759		1126
760	$data = from_json $data;	1127	$data = decode_json $data;
761		1128
762	for (@$data) {	1129	for (@$data) {
763	my ($name, $args) = @$_;	1130	my ($name, $args) = @$_;
764		1131
765	$obj->attach ($name, %{$args || {} });	1132	$obj->attach ($name, %{$args || {} });
…		…
781	sub object_freezer_save {	1148	sub object_freezer_save {
782	my ($filename, $rdata, $objs) = @_;	1149	my ($filename, $rdata, $objs) = @_;
783		1150
784	sync_job {	1151	sync_job {
785	if (length $$rdata) {	1152	if (length $$rdata) {
		1153	utf8::decode (my $decname = $filename);
786	warn sprintf "saving %s (%d,%d)\n",	1154	warn sprintf "saving %s (%d,%d)\n",
787	$filename, length $$rdata, scalar @$objs;	1155	$decname, length $$rdata, scalar @$objs;
788		1156
789	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1157	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
790	chmod SAVE_MODE, $fh;	1158	aio_chmod $fh, SAVE_MODE;
791	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1159	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
792	aio_fsync $fh if $cf::USE_FSYNC;	1160	if ($cf::USE_FSYNC) {
		1161	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1162	aio_fsync $fh;
		1163	}
793	close $fh;	1164	aio_close $fh;
794		1165
795	if (@$objs) {	1166	if (@$objs) {
796	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1167	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
797	chmod SAVE_MODE, $fh;	1168	aio_chmod $fh, SAVE_MODE;
798	my $data = Storable::nfreeze { version => 1, objs => $objs };	1169	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
799	aio_write $fh, 0, (length $data), $data, 0;	1170	aio_write $fh, 0, (length $data), $data, 0;
800	aio_fsync $fh if $cf::USE_FSYNC;	1171	if ($cf::USE_FSYNC) {
		1172	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1173	aio_fsync $fh;
		1174	}
801	close $fh;	1175	aio_close $fh;
802	aio_rename "$filename.pst~", "$filename.pst";	1176	aio_rename "$filename.pst~", "$filename.pst";
803	}	1177	}
804	} else {	1178	} else {
805	aio_unlink "$filename.pst";	1179	aio_unlink "$filename.pst";
806	}	1180	}
807		1181
808	aio_rename "$filename~", $filename;	1182	aio_rename "$filename~", $filename;
		1183
		1184	$filename =~ s%/[^/]+$%%;
		1185	aio_pathsync $filename if $cf::USE_FSYNC;
809	} else {	1186	} else {
810	warn "FATAL: $filename~: $!\n";	1187	warn "unable to save objects: $filename~: $!\n";
811	}	1188	}
812	} else {	1189	} else {
813	aio_unlink $filename;	1190	aio_unlink $filename;
814	aio_unlink "$filename.pst";	1191	aio_unlink "$filename.pst";
815	}	1192	}
816	}	1193	};
817	}	1194	}
818		1195
819	sub object_freezer_as_string {	1196	sub object_freezer_as_string {
820	my ($rdata, $objs) = @_;	1197	my ($rdata, $objs) = @_;
821		1198
…		…
833	or return;	1210	or return;
834		1211
835	unless (aio_stat "$filename.pst") {	1212	unless (aio_stat "$filename.pst") {
836	(aio_load "$filename.pst", $av) >= 0	1213	(aio_load "$filename.pst", $av) >= 0
837	or return;	1214	or return;
		1215
838	$av = eval { (Storable::thaw $av)->{objs} };	1216	my $st = eval { Coro::Storable::thaw $av };
		1217	$av = $st->{objs};
839	}	1218	}
840		1219
		1220	utf8::decode (my $decname = $filename);
841	warn sprintf "loading %s (%d)\n",	1221	warn sprintf "loading %s (%d,%d)\n",
842	$filename, length $data, scalar @{$av || []};#d#	1222	$decname, length $data, scalar @{$av || []};
		1223
843	return ($data, $av);	1224	($data, $av)
844	}	1225	}
		1226
		1227	=head2 COMMAND CALLBACKS
		1228
		1229	=over 4
		1230
		1231	=cut
845		1232
846	#############################################################################	1233	#############################################################################
847	# command handling &c	1234	# command handling &c
848		1235
849	=item cf::register_command $name => \&callback($ob,$args);	1236	=item cf::register_command $name => \&callback($ob,$args);
…		…
862	push @{ $COMMAND{$name} }, [$caller, $cb];	1249	push @{ $COMMAND{$name} }, [$caller, $cb];
863	}	1250	}
864		1251
865	=item cf::register_extcmd $name => \&callback($pl,$packet);	1252	=item cf::register_extcmd $name => \&callback($pl,$packet);
866		1253
867	Register a callbackf ro execution when the client sends an extcmd packet.	1254	Register a callback for execution when the client sends an (synchronous)
		1255	extcmd packet. Ext commands will be processed in the order they are
		1256	received by the server, like other user commands. The first argument is
		1257	the logged-in player. Ext commands can only be processed after a player
		1258	has logged in successfully.
868		1259
869	If the callback returns something, it is sent back as if reply was being	1260	If the callback returns something, it is sent back as if reply was being
870	called.	1261	called.
871		1262
		1263	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1264
		1265	Register a callback for execution when the client sends an (asynchronous)
		1266	exticmd packet. Exti commands are processed by the server as soon as they
		1267	are received, i.e. out of order w.r.t. other commands. The first argument
		1268	is a client socket. Exti commands can be received anytime, even before
		1269	log-in.
		1270
		1271	If the callback returns something, it is sent back as if reply was being
		1272	called.
		1273
872	=cut	1274	=cut
873		1275
874	sub register_extcmd {	1276	sub register_extcmd {
875	my ($name, $cb) = @_;	1277	my ($name, $cb) = @_;
876		1278
877	$EXTCMD{$name} = $cb;	1279	$EXTCMD{$name} = $cb;
878	}	1280	}
		1281
		1282	sub register_exticmd {
		1283	my ($name, $cb) = @_;
		1284
		1285	$EXTICMD{$name} = $cb;
		1286	}
		1287
		1288	use File::Glob ();
879		1289
880	cf::player->attach (	1290	cf::player->attach (
881	on_command => sub {	1291	on_command => sub {
882	my ($pl, $name, $params) = @_;	1292	my ($pl, $name, $params) = @_;
883		1293
…		…
891	cf::override;	1301	cf::override;
892	},	1302	},
893	on_extcmd => sub {	1303	on_extcmd => sub {
894	my ($pl, $buf) = @_;	1304	my ($pl, $buf) = @_;
895		1305
896	my $msg = eval { from_json $buf };	1306	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
897		1307
898	if (ref $msg) {	1308	if (ref $msg) {
		1309	my ($type, $reply, @payload) =
		1310	"ARRAY" eq ref $msg
		1311	? @$msg
		1312	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1313
		1314	my @reply;
		1315
899	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1316	if (my $cb = $EXTCMD{$type}) {
900	if (my %reply = $cb->($pl, $msg)) {	1317	@reply = $cb->($pl, @payload);
901	$pl->ext_reply ($msg->{msgid}, %reply);
902	}
903	}	1318	}
		1319
		1320	$pl->ext_reply ($reply, @reply)
		1321	if $reply;
		1322
904	} else {	1323	} else {
905	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1324	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
906	}	1325	}
907		1326
908	cf::override;	1327	cf::override;
909	},	1328	},
910	);	1329	);
911		1330
		1331	# "readahead" all extensions
912	sub load_extension {	1332	sub cache_extensions {
913	my ($path) = @_;	1333	my $grp = IO::AIO::aio_group;
914		1334
915	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1335	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
916	my $base = $1;	1336	for (grep /\.ext$/, @{$_[0]}) {
917	my $pkg = $1;	1337	add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
918	$pkg =~ s/[^[:word:]]/_/g;
919	$pkg = "ext::$pkg";
920
921	warn "... loading '$path' into '$pkg'\n";
922
923	open my $fh, "<:utf8", $path
924	or die "$path: $!";
925
926	my $source =
927	"package $pkg; use strict; use utf8;\n"
928	. "#line 1 \"$path\"\n{\n"
929	. (do { local $/; <$fh> })
930	. "\n};\n1";
931
932	unless (eval $source) {
933	my $msg = $@ ? "$path: $@\n"
934	: "extension disabled.\n";
935	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
936	warn $@;
937	warn "mandatory extension failed to load, exiting.\n";
938	exit 1;
939	}	1338	}
940	die $@;
941	}	1339	};
942		1340
943	push @EXTS, $pkg;	1341	$grp
944	}	1342	}
945		1343
946	sub load_extensions {	1344	sub load_extensions {
		1345	cf::sync_job {
		1346	my %todo;
		1347
947	for my $ext (<$LIBDIR/*.ext>) {	1348	for my $path (<$LIBDIR/*.ext>) {
948	next unless -r $ext;	1349	next unless -r $path;
949	eval {	1350
950	load_extension $ext;	1351	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1352	my $base = $1;
		1353	my $pkg = $1;
		1354	$pkg =~ s/[^[:word:]]/_/g;
		1355	$pkg = "ext::$pkg";
		1356
		1357	open my $fh, "<:utf8", $path
		1358	or die "$path: $!";
		1359
		1360	my $source = do { local $/; <$fh> };
		1361
		1362	my %ext = (
		1363	path => $path,
		1364	base => $base,
		1365	pkg => $pkg,
		1366	);
		1367
		1368	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1369	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1370
		1371	$ext{source} =
		1372	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1373	. "#line 1 \"$path\"\n{\n"
		1374	. $source
		1375	. "\n};\n1";
		1376
		1377	$todo{$base} = \%ext;
		1378	}
		1379
		1380	my %done;
		1381	while (%todo) {
		1382	my $progress;
		1383
		1384	while (my ($k, $v) = each %todo) {
		1385	for (split /,\s*/, $v->{meta}{depends}) {
		1386	goto skip
		1387	unless exists $done{$_};
		1388	}
		1389
		1390	warn "... loading '$k' into '$v->{pkg}'\n";
		1391
		1392	unless (eval $v->{source}) {
		1393	my $msg = $@ ? "$v->{path}: $@\n"
		1394	: "$v->{base}: extension inactive.\n";
		1395
		1396	if (exists $v->{meta}{mandatory}) {
		1397	warn $msg;
		1398	cf::cleanup "mandatory extension failed to load, exiting.";
		1399	}
		1400
		1401	warn $msg;
		1402	}
		1403
		1404	$done{$k} = delete $todo{$k};
		1405	push @EXTS, $v->{pkg};
		1406	$progress = 1;
951	1	1407	}
952	} or warn "$ext not loaded: $@";	1408
		1409	skip:
		1410	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1411	unless $progress;
		1412	}
953	}	1413	};
954	}	1414	}
955		1415
956	#############################################################################	1416	#############################################################################
957		1417
		1418	=back
		1419
958	=head2 CORE EXTENSIONS	1420	=head2 CORE EXTENSIONS
959		1421
960	Functions and methods that extend core crossfire objects.	1422	Functions and methods that extend core deliantra objects.
961		1423
962	=cut	1424	=cut
963		1425
964	package cf::player;	1426	package cf::player;
965		1427
966	use Coro::AIO;	1428	use Coro::AIO;
967		1429
968	=head3 cf::player	1430	=head3 cf::player
969		1431
970	=over 4	1432	=over 4
		1433
		1434	=item cf::player::num_playing
		1435
		1436	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1437
		1438	=cut
		1439
		1440	sub num_playing {
		1441	scalar grep
		1442	$_->ob->map
		1443	&& !$_->hidden
		1444	&& !$_->ob->flag (cf::FLAG_WIZ),
		1445	cf::player::list
		1446	}
971		1447
972	=item cf::player::find $login	1448	=item cf::player::find $login
973		1449
974	Returns the given player object, loading it if necessary (might block).	1450	Returns the given player object, loading it if necessary (might block).
975		1451
…		…
994		1470
995	sub exists($) {	1471	sub exists($) {
996	my ($login) = @_;	1472	my ($login) = @_;
997		1473
998	$cf::PLAYER{$login}	1474	$cf::PLAYER{$login}
999	or cf::sync_job { !aio_stat path $login }	1475	or !aio_stat path $login
1000	}	1476	}
1001		1477
1002	sub find($) {	1478	sub find($) {
1003	return $cf::PLAYER{$_[0]} || do {	1479	return $cf::PLAYER{$_[0]} || do {
1004	my $login = $_[0];	1480	my $login = $_[0];
…		…
1011	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1487	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1012	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1488	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1013	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1489	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1014	aio_unlink +(playerdir $login) . "/$login.pl";	1490	aio_unlink +(playerdir $login) . "/$login.pl";
1015		1491
1016	my $pl = load_pl path $login	1492	my $f = new_from_file cf::object::thawer path $login
1017	or return;	1493	or return;
		1494
		1495	my $pl = cf::player::load_pl $f
		1496	or return;
		1497
		1498	local $cf::PLAYER_LOADING{$login} = $pl;
		1499	$f->resolve_delayed_derefs;
1018	$cf::PLAYER{$login} = $pl	1500	$cf::PLAYER{$login} = $pl
1019	}	1501	}
1020	}	1502	}
1021	}	1503	}
1022		1504
…		…
1031	return if $pl->{deny_save};	1513	return if $pl->{deny_save};
1032		1514
1033	aio_mkdir playerdir $pl, 0770;	1515	aio_mkdir playerdir $pl, 0770;
1034	$pl->{last_save} = $cf::RUNTIME;	1516	$pl->{last_save} = $cf::RUNTIME;
1035		1517
		1518	cf::get_slot 0.01;
		1519
1036	$pl->save_pl ($path);	1520	$pl->save_pl ($path);
1037	Coro::cede;	1521	cf::cede_to_tick;
1038	}	1522	}
1039		1523
1040	sub new($) {	1524	sub new($) {
1041	my ($login) = @_;	1525	my ($login) = @_;
1042		1526
…		…
1048	$cf::PLAYER{$login} = $self;	1532	$cf::PLAYER{$login} = $self;
1049		1533
1050	$self	1534	$self
1051	}	1535	}
1052		1536
		1537	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1538
		1539	=cut
		1540
		1541	sub send_msg {
		1542	my $ns = shift->ns
		1543	or return;
		1544	$ns->send_msg (@_);
		1545	}
		1546
1053	=item $pl->quit_character	1547	=item $pl->quit_character
1054		1548
1055	Nukes the player without looking back. If logged in, the connection will	1549	Nukes the player without looking back. If logged in, the connection will
1056	be destroyed. May block for a long time.	1550	be destroyed. May block for a long time.
1057		1551
…		…
1061	my ($pl) = @_;	1555	my ($pl) = @_;
1062		1556
1063	my $name = $pl->ob->name;	1557	my $name = $pl->ob->name;
1064		1558
1065	$pl->{deny_save} = 1;	1559	$pl->{deny_save} = 1;
1066	$pl->password ("*"); # this should lock out the player until we nuked the dir	1560	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1067		1561
1068	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1562	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1069	$pl->deactivate;	1563	$pl->deactivate;
		1564	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1565	$pl->ob->check_score;
1070	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1566	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1071	$pl->ns->destroy if $pl->ns;	1567	$pl->ns->destroy if $pl->ns;
1072		1568
1073	my $path = playerdir $pl;	1569	my $path = playerdir $pl;
1074	my $temp = "$path~$cf::RUNTIME~deleting~";	1570	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1110	or return [];	1606	or return [];
1111		1607
1112	my @logins;	1608	my @logins;
1113		1609
1114	for my $login (@$dirs) {	1610	for my $login (@$dirs) {
		1611	my $path = path $login;
		1612
		1613	# a .pst is a dead give-away for a valid player
		1614	# if no pst file found, open and chekc for blocked users
		1615	if (aio_stat "$path.pst") {
1115	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1616	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1116	aio_read $fh, 0, 512, my $buf, 0 or next;	1617	aio_read $fh, 0, 512, my $buf, 0 or next;
1117	$buf !~ /^password -------------$/m or next; # official not-valid tag	1618	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1619	}
1118		1620
1119	utf8::decode $login;	1621	utf8::decode $login;
1120	push @logins, $login;	1622	push @logins, $login;
1121	}	1623	}
1122		1624
…		…
1149	}	1651	}
1150		1652
1151	\@paths	1653	\@paths
1152	}	1654	}
1153		1655
		1656	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1657
		1658	Expand deliantra pod fragments into protocol xml.
		1659
1154	=item $player->ext_reply ($msgid, %msg)	1660	=item $player->ext_reply ($msgid, @msg)
1155		1661
1156	Sends an ext reply to the player.	1662	Sends an ext reply to the player.
1157		1663
1158	=cut	1664	=cut
1159		1665
1160	sub ext_reply($$%) {	1666	sub ext_reply($$@) {
1161	my ($self, $id, %msg) = @_;	1667	my ($self, $id, @msg) = @_;
1162		1668
1163	$msg{msgid} = $id;	1669	$self->ns->ext_reply ($id, @msg)
1164
1165	$self->send ("ext " . cf::to_json \%msg);
1166	}	1670	}
1167		1671
1168	=item $player->ext_event ($type, %msg)	1672	=item $player->ext_msg ($type, @msg)
1169		1673
1170	Sends an ext event to the client.	1674	Sends an ext event to the client.
1171		1675
1172	=cut	1676	=cut
1173		1677
1174	sub ext_event($$%) {	1678	sub ext_msg($$@) {
1175	my ($self, $type, %msg) = @_;	1679	my ($self, $type, @msg) = @_;
1176		1680
1177	$self->ns->ext_event ($type, %msg);	1681	$self->ns->ext_msg ($type, @msg);
1178	}	1682	}
1179		1683
1180	=head3 cf::region	1684	=head3 cf::region
1181		1685
1182	=over 4	1686	=over 4
…		…
1185		1689
1186	package cf::region;	1690	package cf::region;
1187		1691
1188	=item cf::region::find_by_path $path	1692	=item cf::region::find_by_path $path
1189		1693
1190	Tries to decuce the probable region for a map knowing only its path.	1694	Tries to decuce the likely region for a map knowing only its path.
1191		1695
1192	=cut	1696	=cut
1193		1697
1194	sub find_by_path($) {	1698	sub find_by_path($) {
1195	my ($path) = @_;	1699	my ($path) = @_;
1196		1700
1197	my ($match, $specificity);	1701	my ($match, $specificity);
1198		1702
1199	for my $region (list) {	1703	for my $region (list) {
1200	if ($region->match && $path =~ $region->match) {	1704	if ($region->{match} && $path =~ $region->{match}) {
1201	($match, $specificity) = ($region, $region->specificity)	1705	($match, $specificity) = ($region, $region->specificity)
1202	if $region->specificity > $specificity;	1706	if $region->specificity > $specificity;
1203	}	1707	}
1204	}	1708	}
1205		1709
…		…
1226	our $MAX_RESET = 3600;	1730	our $MAX_RESET = 3600;
1227	our $DEFAULT_RESET = 3000;	1731	our $DEFAULT_RESET = 3000;
1228		1732
1229	sub generate_random_map {	1733	sub generate_random_map {
1230	my ($self, $rmp) = @_;	1734	my ($self, $rmp) = @_;
		1735
		1736	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1737
1231	# mit "rum" bekleckern, nicht	1738	# mit "rum" bekleckern, nicht
1232	$self->_create_random_map (	1739	$self->_create_random_map (
1233	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1740	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1234	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1741	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1235	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1742	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1269	my ($self, $merge) = @_;	1776	my ($self, $merge) = @_;
1270		1777
1271	# we have to keep some variables in memory intact	1778	# we have to keep some variables in memory intact
1272	local $self->{path};	1779	local $self->{path};
1273	local $self->{load_path};	1780	local $self->{load_path};
1274	local $self->{deny_save};
1275	local $self->{deny_reset};
1276		1781
1277	$self->SUPER::thawer_merge ($merge);	1782	$self->SUPER::thawer_merge ($merge);
1278	}	1783	}
1279		1784
1280	sub normalise {	1785	sub normalise {
…		…
1327	$self->init; # pass $1 etc.	1832	$self->init; # pass $1 etc.
1328	return $self;	1833	return $self;
1329	}	1834	}
1330	}	1835	}
1331		1836
1332	Carp::carp "unable to resolve path '$path' (base '$base').";	1837	Carp::cluck "unable to resolve path '$path' (base '$base').";
1333	()	1838	()
1334	}	1839	}
1335		1840
1336	sub init {	1841	sub init {
1337	my ($self) = @_;	1842	my ($self) = @_;
…		…
1352		1857
1353	# the original (read-only) location	1858	# the original (read-only) location
1354	sub load_path {	1859	sub load_path {
1355	my ($self) = @_;	1860	my ($self) = @_;
1356		1861
1357	"$MAPDIR($self->{path}"	1862	"$MAPDIR/$self->{path}.map"
1358	}	1863	}
1359		1864
1360	# the temporary/swap location	1865	# the temporary/swap location
1361	sub save_path {	1866	sub save_path {
1362	my ($self) = @_;	1867	my ($self) = @_;
1363		1868
1364	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1869	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1365	"$TMPDIR/$path"	1870	"$TMPDIR/$path.map"
1366	}	1871	}
1367		1872
1368	# the unique path, undef == no special unique path	1873	# the unique path, undef == no special unique path
1369	sub uniq_path {	1874	sub uniq_path {
1370	my ($self) = @_;	1875	my ($self) = @_;
1371		1876
1372	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1877	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1373	"$UNIQUEDIR/$path"	1878	"$UNIQUEDIR/$path"
1374	}	1879	}
1375		1880
1376	# and all this just because we cannot iterate over	1881	sub decay_objects {
1377	# all maps in C++...
1378	sub change_all_map_light {
1379	my ($change) = @_;	1882	my ($self) = @_;
1380		1883
1381	$_->change_map_light ($change)	1884	return if $self->{deny_reset};
1382	for grep $_->outdoor, values %cf::MAP;	1885
		1886	$self->do_decay_objects;
1383	}	1887	}
1384		1888
1385	sub unlink_save {	1889	sub unlink_save {
1386	my ($self) = @_;	1890	my ($self) = @_;
1387		1891
…		…
1392		1896
1393	sub load_header_from($) {	1897	sub load_header_from($) {
1394	my ($self, $path) = @_;	1898	my ($self, $path) = @_;
1395		1899
1396	utf8::encode $path;	1900	utf8::encode $path;
1397	#aio_open $path, O_RDONLY, 0	1901	my $f = new_from_file cf::object::thawer $path
1398	# or return;
1399
1400	$self->_load_header ($path)
1401	or return;	1902	or return;
		1903
		1904	$self->_load_header ($f)
		1905	or return;
		1906
		1907	local $MAP_LOADING{$self->{path}} = $self;
		1908	$f->resolve_delayed_derefs;
1402		1909
1403	$self->{load_path} = $path;	1910	$self->{load_path} = $path;
1404		1911
1405	1	1912	1
1406	}	1913	}
…		…
1445	$self->load_header_orig	1952	$self->load_header_orig
1446	or return;	1953	or return;
1447	$self->prepare_orig;	1954	$self->prepare_orig;
1448	}	1955	}
1449		1956
		1957	$self->{deny_reset} = 1
		1958	if $self->no_reset;
		1959
1450	$self->default_region (cf::region::find_by_path $self->{path})	1960	$self->default_region (cf::region::find_by_path $self->{path})
1451	unless $self->default_region;	1961	unless $self->default_region;
1452		1962
1453	1	1963	1
1454	}	1964	}
…		…
1457	sub find {	1967	sub find {
1458	my ($path, $origin) = @_;	1968	my ($path, $origin) = @_;
1459		1969
1460	$path = normalise $path, $origin && $origin->path;	1970	$path = normalise $path, $origin && $origin->path;
1461		1971
		1972	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1462	cf::lock_wait "map_find:$path";	1973	my $guard2 = cf::lock_acquire "map_find:$path";
1463		1974
1464	$cf::MAP{$path} || do {	1975	$cf::MAP{$path} || do {
1465	my $guard = cf::lock_acquire "map_find:$path";
1466	my $map = new_from_path cf::map $path	1976	my $map = new_from_path cf::map $path
1467	or return;	1977	or return;
1468		1978
1469	$map->{last_save} = $cf::RUNTIME;	1979	$map->{last_save} = $cf::RUNTIME;
1470		1980
1471	$map->load_header	1981	$map->load_header
1472	or return;	1982	or return;
1473		1983
1474	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1984	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1475	# doing this can freeze the server in a sync job, obviously	1985	# doing this can freeze the server in a sync job, obviously
1476	#$cf::WAIT_FOR_TICK->wait;	1986	#$cf::WAIT_FOR_TICK->wait;
		1987	undef $guard2;
		1988	undef $guard1;
1477	$map->reset;	1989	$map->reset;
1478	undef $guard;
1479	return find $path;	1990	return find $path;
1480	}	1991	}
1481		1992
1482	$cf::MAP{$path} = $map	1993	$cf::MAP{$path} = $map
1483	}	1994	}
…		…
1490	my ($self) = @_;	2001	my ($self) = @_;
1491		2002
1492	local $self->{deny_reset} = 1; # loading can take a long time	2003	local $self->{deny_reset} = 1; # loading can take a long time
1493		2004
1494	my $path = $self->{path};	2005	my $path = $self->{path};
		2006
		2007	{
1495	my $guard = cf::lock_acquire "map_load:$path";	2008	my $guard = cf::lock_acquire "map_data:$path";
1496		2009
		2010	return unless $self->valid;
1497	return if $self->in_memory != cf::MAP_SWAPPED;	2011	return unless $self->in_memory == cf::MAP_SWAPPED;
1498		2012
1499	$self->in_memory (cf::MAP_LOADING);	2013	$self->in_memory (cf::MAP_LOADING);
1500		2014
1501	$self->alloc;	2015	$self->alloc;
1502		2016
1503	$self->pre_load;	2017	$self->pre_load;
1504	Coro::cede;	2018	cf::cede_to_tick;
1505		2019
1506	$self->_load_objects ($self->{load_path}, 1)	2020	my $f = new_from_file cf::object::thawer $self->{load_path};
		2021	$f->skip_block;
		2022	$self->_load_objects ($f)
1507	or return;	2023	or return;
1508		2024
1509	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2025	$self->post_load_original
1510	if delete $self->{load_original};	2026	if delete $self->{load_original};
1511		2027
1512	if (my $uniq = $self->uniq_path) {	2028	if (my $uniq = $self->uniq_path) {
1513	utf8::encode $uniq;	2029	utf8::encode $uniq;
1514	if (aio_open $uniq, O_RDONLY, 0) {	2030	unless (aio_stat $uniq) {
		2031	if (my $f = new_from_file cf::object::thawer $uniq) {
1515	$self->clear_unique_items;	2032	$self->clear_unique_items;
1516	$self->_load_objects ($uniq, 0);	2033	$self->_load_objects ($f);
		2034	$f->resolve_delayed_derefs;
		2035	}
1517	}	2036	}
1518	}	2037	}
1519		2038
1520	Coro::cede;	2039	$f->resolve_delayed_derefs;
		2040
		2041	cf::cede_to_tick;
1521	# now do the right thing for maps	2042	# now do the right thing for maps
1522	$self->link_multipart_objects;	2043	$self->link_multipart_objects;
1523	Coro::cede;
1524
1525	unless ($self->{deny_activate}) {
1526	$self->decay_objects;
1527	$self->fix_auto_apply;
1528	$self->update_buttons;
1529	Coro::cede;
1530	$self->set_darkness_map;
1531	$self->difficulty ($self->estimate_difficulty)	2044	$self->difficulty ($self->estimate_difficulty)
1532	unless $self->difficulty;	2045	unless $self->difficulty;
1533	Coro::cede;	2046	cf::cede_to_tick;
		2047
		2048	unless ($self->{deny_activate}) {
		2049	$self->decay_objects;
		2050	$self->fix_auto_apply;
		2051	$self->update_buttons;
		2052	cf::cede_to_tick;
1534	$self->activate;	2053	$self->activate;
1535	Coro::cede;	2054	}
		2055
		2056	$self->{last_save} = $cf::RUNTIME;
		2057	$self->last_access ($cf::RUNTIME);
		2058
		2059	$self->in_memory (cf::MAP_ACTIVE);
1536	}	2060	}
1537		2061
1538	$self->post_load;	2062	$self->post_load;
1539	Coro::cede;
1540
1541	$self->in_memory (cf::MAP_IN_MEMORY);
1542	}	2063	}
1543		2064
1544	sub customise_for {	2065	sub customise_for {
1545	my ($self, $ob) = @_;	2066	my ($self, $ob) = @_;
1546		2067
1547	return find "~" . $ob->name . "/" . $self->{path}	2068	return find "~" . $ob->name . "/" . $self->{path}
1548	if $self->per_player;	2069	if $self->per_player;
1549		2070
		2071	# return find "?party/" . $ob->name . "/" . $self->{path}
		2072	# if $self->per_party;
		2073
1550	$self	2074	$self
1551	}	2075	}
1552		2076
1553	# find and load all maps in the 3x3 area around a map	2077	# find and load all maps in the 3x3 area around a map
1554	sub load_diag {	2078	sub load_neighbours {
1555	my ($map) = @_;	2079	my ($map) = @_;
1556		2080
1557	my @diag; # diagonal neighbours	2081	my @neigh; # diagonal neighbours
1558		2082
1559	for (0 .. 3) {	2083	for (0 .. 3) {
1560	my $neigh = $map->tile_path ($_)	2084	my $neigh = $map->tile_path ($_)
1561	or next;	2085	or next;
1562	$neigh = find $neigh, $map	2086	$neigh = find $neigh, $map
1563	or next;	2087	or next;
1564	$neigh->load;	2088	$neigh->load;
1565		2089
		2090	push @neigh,
1566	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2091	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1567	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2092	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1568	}	2093	}
1569		2094
1570	for (@diag) {	2095	for (grep defined $_->[0], @neigh) {
		2096	my ($path, $origin) = @$_;
1571	my $neigh = find @$_	2097	my $neigh = find $path, $origin
1572	or next;	2098	or next;
1573	$neigh->load;	2099	$neigh->load;
1574	}	2100	}
1575	}	2101	}
1576		2102
…		…
1581	}	2107	}
1582		2108
1583	sub do_load_sync {	2109	sub do_load_sync {
1584	my ($map) = @_;	2110	my ($map) = @_;
1585		2111
		2112	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2113	if $Coro::current == $Coro::main;
		2114
1586	cf::sync_job { $map->load };	2115	cf::sync_job { $map->load };
1587	}	2116	}
1588		2117
1589	our %MAP_PREFETCH;	2118	our %MAP_PREFETCH;
1590	our $MAP_PREFETCHER = undef;	2119	our $MAP_PREFETCHER = undef;
1591		2120
1592	sub find_async {	2121	sub find_async {
1593	my ($path, $origin) = @_;	2122	my ($path, $origin, $load) = @_;
1594		2123
1595	$path = normalise $path, $origin && $origin->{path};	2124	$path = normalise $path, $origin && $origin->{path};
1596		2125
1597	if (my $map = $cf::MAP{$path}) {	2126	if (my $map = $cf::MAP{$path}) {
1598	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2127	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1599	}	2128	}
1600		2129
1601	undef $MAP_PREFETCH{$path};	2130	$MAP_PREFETCH{$path} |= $load;
		2131
1602	$MAP_PREFETCHER ||= cf::async {	2132	$MAP_PREFETCHER ||= cf::async {
		2133	$Coro::current->{desc} = "map prefetcher";
		2134
1603	while (%MAP_PREFETCH) {	2135	while (%MAP_PREFETCH) {
1604	for my $path (keys %MAP_PREFETCH) {	2136	while (my ($k, $v) = each %MAP_PREFETCH) {
1605	my $map = find $path	2137	if (my $map = find $k) {
1606	or next;
1607	$map->load;	2138	$map->load if $v;
		2139	}
1608		2140
1609	delete $MAP_PREFETCH{$path};	2141	delete $MAP_PREFETCH{$k};
1610	}	2142	}
1611	}	2143	}
1612	undef $MAP_PREFETCHER;	2144	undef $MAP_PREFETCHER;
1613	};	2145	};
1614	$MAP_PREFETCHER->prio (6);	2146	$MAP_PREFETCHER->prio (6);
…		…
1617	}	2149	}
1618		2150
1619	sub save {	2151	sub save {
1620	my ($self) = @_;	2152	my ($self) = @_;
1621		2153
1622	my $lock = cf::lock_acquire "map_data:" . $self->path;	2154	my $lock = cf::lock_acquire "map_data:$self->{path}";
1623		2155
1624	$self->{last_save} = $cf::RUNTIME;	2156	$self->{last_save} = $cf::RUNTIME;
1625		2157
1626	return unless $self->dirty;	2158	return unless $self->dirty;
1627		2159
…		…
1633	return if $self->{deny_save};	2165	return if $self->{deny_save};
1634		2166
1635	local $self->{last_access} = $self->last_access;#d#	2167	local $self->{last_access} = $self->last_access;#d#
1636		2168
1637	cf::async {	2169	cf::async {
		2170	$Coro::current->{desc} = "map player save";
1638	$_->contr->save for $self->players;	2171	$_->contr->save for $self->players;
1639	};	2172	};
		2173
		2174	cf::get_slot 0.02;
1640		2175
1641	if ($uniq) {	2176	if ($uniq) {
1642	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2177	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1643	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2178	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1644	} else {	2179	} else {
…		…
1650	my ($self) = @_;	2185	my ($self) = @_;
1651		2186
1652	# save first because save cedes	2187	# save first because save cedes
1653	$self->save;	2188	$self->save;
1654		2189
1655	my $lock = cf::lock_acquire "map_data:" . $self->path;	2190	my $lock = cf::lock_acquire "map_data:$self->{path}";
1656		2191
1657	return if $self->players;	2192	return if $self->players;
1658	return if $self->in_memory != cf::MAP_IN_MEMORY;	2193	return if $self->in_memory != cf::MAP_ACTIVE;
1659	return if $self->{deny_save};	2194	return if $self->{deny_save};
1660		2195
		2196	$self->in_memory (cf::MAP_SWAPPED);
		2197
		2198	$self->deactivate;
		2199	$_->clear_links_to ($self) for values %cf::MAP;
1661	$self->clear;	2200	$self->clear;
1662	$self->in_memory (cf::MAP_SWAPPED);
1663	}	2201	}
1664		2202
1665	sub reset_at {	2203	sub reset_at {
1666	my ($self) = @_;	2204	my ($self) = @_;
1667		2205
1668	# TODO: safety, remove and allow resettable per-player maps	2206	# TODO: safety, remove and allow resettable per-player maps
1669	return 1e99 if $self->isa ("ext::map_per_player");#d#
1670	return 1e99 if $self->{deny_reset};	2207	return 1e99 if $self->{deny_reset};
1671		2208
1672	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2209	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1673	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2210	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1674		2211
…		…
1685	my ($self) = @_;	2222	my ($self) = @_;
1686		2223
1687	my $lock = cf::lock_acquire "map_data:$self->{path}";	2224	my $lock = cf::lock_acquire "map_data:$self->{path}";
1688		2225
1689	return if $self->players;	2226	return if $self->players;
1690	return if $self->isa ("ext::map_per_player");#d#
1691		2227
1692	warn "resetting map ", $self->path;#d#	2228	warn "resetting map ", $self->path;
1693		2229
1694	$self->in_memory (cf::MAP_SWAPPED);	2230	$self->in_memory (cf::MAP_SWAPPED);
1695		2231
1696	# need to save uniques path	2232	# need to save uniques path
1697	unless ($self->{deny_save}) {	2233	unless ($self->{deny_save}) {
…		…
1701	if $uniq;	2237	if $uniq;
1702	}	2238	}
1703		2239
1704	delete $cf::MAP{$self->path};	2240	delete $cf::MAP{$self->path};
1705		2241
		2242	$self->deactivate;
		2243	$_->clear_links_to ($self) for values %cf::MAP;
1706	$self->clear;	2244	$self->clear;
1707
1708	$_->clear_links_to ($self) for values %cf::MAP;
1709		2245
1710	$self->unlink_save;	2246	$self->unlink_save;
1711	$self->destroy;	2247	$self->destroy;
1712	}	2248	}
1713		2249
1714	my $nuke_counter = "aaaa";	2250	my $nuke_counter = "aaaa";
1715		2251
1716	sub nuke {	2252	sub nuke {
1717	my ($self) = @_;	2253	my ($self) = @_;
1718		2254
		2255	{
		2256	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2257
1719	delete $cf::MAP{$self->path};	2258	delete $cf::MAP{$self->path};
1720		2259
1721	$self->unlink_save;	2260	$self->unlink_save;
1722		2261
1723	bless $self, "cf::map";	2262	bless $self, "cf::map";
1724	delete $self->{deny_reset};	2263	delete $self->{deny_reset};
1725	$self->{deny_save} = 1;	2264	$self->{deny_save} = 1;
1726	$self->reset_timeout (1);	2265	$self->reset_timeout (1);
1727	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2266	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1728		2267
1729	$cf::MAP{$self->path} = $self;	2268	$cf::MAP{$self->path} = $self;
		2269	}
1730		2270
1731	$self->reset; # polite request, might not happen	2271	$self->reset; # polite request, might not happen
		2272	}
		2273
		2274	=item $maps = cf::map::tmp_maps
		2275
		2276	Returns an arrayref with all map paths of currently instantiated and saved
		2277	maps. May block.
		2278
		2279	=cut
		2280
		2281	sub tmp_maps() {
		2282	[
		2283	map {
		2284	utf8::decode $_;
		2285	/\.map$/
		2286	? normalise $_
		2287	: ()
		2288	} @{ aio_readdir $TMPDIR or [] }
		2289	]
		2290	}
		2291
		2292	=item $maps = cf::map::random_maps
		2293
		2294	Returns an arrayref with all map paths of currently instantiated and saved
		2295	random maps. May block.
		2296
		2297	=cut
		2298
		2299	sub random_maps() {
		2300	[
		2301	map {
		2302	utf8::decode $_;
		2303	/\.map$/
		2304	? normalise "?random/$_"
		2305	: ()
		2306	} @{ aio_readdir $RANDOMDIR or [] }
		2307	]
1732	}	2308	}
1733		2309
1734	=item cf::map::unique_maps	2310	=item cf::map::unique_maps
1735		2311
1736	Returns an arrayref of paths of all shared maps that have	2312	Returns an arrayref of paths of all shared maps that have
1737	instantiated unique items. May block.	2313	instantiated unique items. May block.
1738		2314
1739	=cut	2315	=cut
1740		2316
1741	sub unique_maps() {	2317	sub unique_maps() {
1742	my $files = aio_readdir $UNIQUEDIR	2318	[
1743	or return;	2319	map {
1744
1745	my @paths;
1746
1747	for (@$files) {
1748	utf8::decode $_;	2320	utf8::decode $_;
1749	next if /\.pst$/;	2321	s/\.map$//; # TODO future compatibility hack
1750	next unless /^$PATH_SEP/o;	2322	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1751		2323	? ()
1752	push @paths, cf::map::normalise $_;	2324	: normalise $_
		2325	} @{ aio_readdir $UNIQUEDIR or [] }
1753	}	2326	]
1754
1755	\@paths
1756	}	2327	}
1757
1758	package cf;
1759		2328
1760	=back	2329	=back
1761		2330
1762	=head3 cf::object	2331	=head3 cf::object
1763		2332
…		…
1767		2336
1768	=over 4	2337	=over 4
1769		2338
1770	=item $ob->inv_recursive	2339	=item $ob->inv_recursive
1771		2340
1772	Returns the inventory of the object _and_ their inventories, recursively.	2341	Returns the inventory of the object I<and> their inventories, recursively,
		2342	but I<not> the object itself.
1773		2343
1774	=cut	2344	=cut
1775		2345
1776	sub inv_recursive_;	2346	sub inv_recursive_;
1777	sub inv_recursive_ {	2347	sub inv_recursive_ {
…		…
1780		2350
1781	sub inv_recursive {	2351	sub inv_recursive {
1782	inv_recursive_ inv $_[0]	2352	inv_recursive_ inv $_[0]
1783	}	2353	}
1784		2354
		2355	=item $ref = $ob->ref
		2356
		2357	Creates and returns a persistent reference to an object that can be stored as a string.
		2358
		2359	=item $ob = cf::object::deref ($refstring)
		2360
		2361	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2362	even if the object actually exists. May block.
		2363
		2364	=cut
		2365
		2366	sub deref {
		2367	my ($ref) = @_;
		2368
		2369	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2370	my ($uuid, $name) = ($1, $2);
		2371	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2372	or return;
		2373	$pl->ob->uuid eq $uuid
		2374	or return;
		2375
		2376	$pl->ob
		2377	} else {
		2378	warn "$ref: cannot resolve object reference\n";
		2379	undef
		2380	}
		2381	}
		2382
1785	package cf;	2383	package cf;
1786		2384
1787	=back	2385	=back
1788		2386
1789	=head3 cf::object::player	2387	=head3 cf::object::player
…		…
1795	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2393	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1796	can be C<undef>. Does the right thing when the player is currently in a	2394	can be C<undef>. Does the right thing when the player is currently in a
1797	dialogue with the given NPC character.	2395	dialogue with the given NPC character.
1798		2396
1799	=cut	2397	=cut
		2398
		2399	our $SAY_CHANNEL = {
		2400	id => "say",
		2401	title => "Map",
		2402	reply => "say ",
		2403	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2404	};
		2405
		2406	our $CHAT_CHANNEL = {
		2407	id => "chat",
		2408	title => "Chat",
		2409	reply => "chat ",
		2410	tooltip => "Player chat and shouts, global to the server.",
		2411	};
1800		2412
1801	# rough implementation of a future "reply" method that works	2413	# rough implementation of a future "reply" method that works
1802	# with dialog boxes.	2414	# with dialog boxes.
1803	#TODO: the first argument must go, split into a $npc->reply_to ( method	2415	#TODO: the first argument must go, split into a $npc->reply_to ( method
1804	sub cf::object::player::reply($$$;$) {	2416	sub cf::object::player::reply($$$;$) {
…		…
1806		2418
1807	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2419	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1808		2420
1809	if ($self->{record_replies}) {	2421	if ($self->{record_replies}) {
1810	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2422	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2423
1811	} else {	2424	} else {
		2425	my $pl = $self->contr;
		2426
		2427	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2428	my $dialog = $pl->{npc_dialog};
		2429	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2430
		2431	} else {
1812	$msg = $npc->name . " says: $msg" if $npc;	2432	$msg = $npc->name . " says: $msg" if $npc;
1813	$self->message ($msg, $flags);	2433	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2434	}
1814	}	2435	}
		2436	}
		2437
		2438	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2439
		2440	=cut
		2441
		2442	sub cf::object::send_msg {
		2443	my $pl = shift->contr
		2444	or return;
		2445	$pl->send_msg (@_);
1815	}	2446	}
1816		2447
1817	=item $player_object->may ("access")	2448	=item $player_object->may ("access")
1818		2449
1819	Returns wether the given player is authorized to access resource "access"	2450	Returns wether the given player is authorized to access resource "access"
…		…
1832		2463
1833	=item $player_object->enter_link	2464	=item $player_object->enter_link
1834		2465
1835	Freezes the player and moves him/her to a special map (C<{link}>).	2466	Freezes the player and moves him/her to a special map (C<{link}>).
1836		2467
1837	The player should be reasonably safe there for short amounts of time. You	2468	The player should be reasonably safe there for short amounts of time (e.g.
1838	I<MUST> call C<leave_link> as soon as possible, though.	2469	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2470	though, as the palyer cannot control the character while it is on the link
		2471	map.
1839		2472
1840	Will never block.	2473	Will never block.
1841		2474
1842	=item $player_object->leave_link ($map, $x, $y)	2475	=item $player_object->leave_link ($map, $x, $y)
1843		2476
…		…
1866	$self->deactivate_recursive;	2499	$self->deactivate_recursive;
1867		2500
1868	return if UNIVERSAL::isa $self->map, "ext::map_link";	2501	return if UNIVERSAL::isa $self->map, "ext::map_link";
1869		2502
1870	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2503	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1871	if $self->map;	2504	if $self->map && $self->map->{path} ne "{link}";
1872		2505
1873	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2506	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1874	}	2507	}
1875		2508
1876	sub cf::object::player::leave_link {	2509	sub cf::object::player::leave_link {
1877	my ($self, $map, $x, $y) = @_;	2510	my ($self, $map, $x, $y) = @_;
		2511
		2512	return unless $self->contr->active;
1878		2513
1879	my $link_pos = delete $self->{_link_pos};	2514	my $link_pos = delete $self->{_link_pos};
1880		2515
1881	unless ($map) {	2516	unless ($map) {
1882	# restore original map position	2517	# restore original map position
…		…
1896	# use -1 or undef as default coordinates, not 0, 0	2531	# use -1 or undef as default coordinates, not 0, 0
1897	($x, $y) = ($map->enter_x, $map->enter_y)	2532	($x, $y) = ($map->enter_x, $map->enter_y)
1898	if $x <=0 && $y <= 0;	2533	if $x <=0 && $y <= 0;
1899		2534
1900	$map->load;	2535	$map->load;
1901	$map->load_diag;	2536	$map->load_neighbours;
1902		2537
1903	return unless $self->contr->active;	2538	return unless $self->contr->active;
		2539	$self->flag (cf::FLAG_DEBUG, 0);#d# temp
1904	$self->activate_recursive;	2540	$self->activate_recursive;
1905		2541
1906	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2542	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1907	$self->enter_map ($map, $x, $y);	2543	$self->enter_map ($map, $x, $y);
1908	}	2544	}
1909		2545
1910	cf::player->attach (	2546	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1911	on_logout => sub {
1912	my ($pl) = @_;
1913		2547
1914	# abort map switching before logout	2548	Moves the player to the given map-path and coordinates by first freezing
1915	if ($pl->ob->{_link_pos}) {	2549	her, loading and preparing them map, calling the provided $check callback
1916	cf::sync_job {	2550	that has to return the map if sucecssful, and then unfreezes the player on
1917	$pl->ob->leave_link	2551	the new (success) or old (failed) map position. In either case, $done will
1918	};	2552	be called at the end of this process.
1919	}
1920	},
1921	on_login => sub {
1922	my ($pl) = @_;
1923		2553
1924	# try to abort aborted map switching on player login :)	2554	Note that $check will be called with a potentially non-loaded map, so if
1925	# should happen only on crashes	2555	it needs a loaded map it has to call C<< ->load >>.
1926	if ($pl->ob->{_link_pos}) {
1927	$pl->ob->enter_link;
1928	(async {
1929	$pl->ob->reply (undef,
1930	"There was an internal problem at your last logout, "
1931	. "the server will try to bring you to your intended destination in a second.",
1932	cf::NDI_RED);
1933	# we need this sleep as the login has a concurrent enter_exit running
1934	# and this sleep increases chances of the player not ending up in scorn
1935	Coro::Timer::sleep 1;
1936	$pl->ob->leave_link;
1937	})->prio (2);
1938	}
1939	},
1940	);
1941		2556
1942	=item $player_object->goto ($path, $x, $y)
1943
1944	=cut	2557	=cut
		2558
		2559	our $GOTOGEN;
1945		2560
1946	sub cf::object::player::goto {	2561	sub cf::object::player::goto {
1947	my ($self, $path, $x, $y) = @_;	2562	my ($self, $path, $x, $y, $check, $done) = @_;
		2563
		2564	# do generation counting so two concurrent goto's will be executed in-order
		2565	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1948		2566
1949	$self->enter_link;	2567	$self->enter_link;
1950		2568
1951	(async {	2569	(async {
		2570	$Coro::current->{desc} = "player::goto $path $x $y";
		2571
		2572	# *tag paths override both path and x|y
		2573	if ($path =~ /^\*(.*)$/) {
		2574	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2575	my $ob = $obs[rand @obs];
		2576
		2577	# see if we actually can go there
		2578	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2579	$ob = $obs[rand @obs];
		2580	} else {
		2581	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2582	}
		2583	# else put us there anyways for now #d#
		2584
		2585	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2586	} else {
		2587	($path, $x, $y) = (undef, undef, undef);
		2588	}
		2589	}
		2590
1952	my $map = eval {	2591	my $map = eval {
1953	my $map = cf::map::find $path;	2592	my $map = defined $path ? cf::map::find $path : undef;
		2593
		2594	if ($map) {
1954	$map = $map->customise_for ($self) if $map;	2595	$map = $map->customise_for ($self);
		2596	$map = $check->($map) if $check && $map;
		2597	} else {
		2598	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2599	}
		2600
1955	$map	2601	$map
		2602	};
		2603
		2604	if ($@) {
		2605	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2606	LOG llevError | logBacktrace, Carp::longmess $@;
1956	} or	2607	}
1957	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1958		2608
		2609	if ($gen == $self->{_goto_generation}) {
		2610	delete $self->{_goto_generation};
1959	$self->leave_link ($map, $x, $y);	2611	$self->leave_link ($map, $x, $y);
		2612	}
		2613
		2614	$done->() if $done;
1960	})->prio (1);	2615	})->prio (1);
1961	}	2616	}
1962		2617
1963	=item $player_object->enter_exit ($exit_object)	2618	=item $player_object->enter_exit ($exit_object)
1964		2619
…		…
1984	}	2639	}
1985		2640
1986	sub prepare_random_map {	2641	sub prepare_random_map {
1987	my ($exit) = @_;	2642	my ($exit) = @_;
1988		2643
1989	my $guard = cf::lock_acquire "exit_prepare:$exit";
1990
1991	# all this does is basically replace the /! path by	2644	# all this does is basically replace the /! path by
1992	# a new random map path (?random/...) with a seed	2645	# a new random map path (?random/...) with a seed
1993	# that depends on the exit object	2646	# that depends on the exit object
1994		2647
1995	my $rmp = parse_random_map_params $exit->msg;	2648	my $rmp = parse_random_map_params $exit->msg;
…		…
1997	if ($exit->map) {	2650	if ($exit->map) {
1998	$rmp->{region} = $exit->region->name;	2651	$rmp->{region} = $exit->region->name;
1999	$rmp->{origin_map} = $exit->map->path;	2652	$rmp->{origin_map} = $exit->map->path;
2000	$rmp->{origin_x} = $exit->x;	2653	$rmp->{origin_x} = $exit->x;
2001	$rmp->{origin_y} = $exit->y;	2654	$rmp->{origin_y} = $exit->y;
		2655
		2656	$exit->map->touch;
2002	}	2657	}
2003		2658
2004	$rmp->{random_seed} ||= $exit->random_seed;	2659	$rmp->{random_seed} ||= $exit->random_seed;
2005		2660
2006	my $data = cf::to_json $rmp;	2661	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2007	my $md5 = Digest::MD5::md5_hex $data;	2662	my $md5 = Digest::MD5::md5_hex $data;
2008	my $meta = "$RANDOMDIR/$md5.meta";	2663	my $meta = "$RANDOMDIR/$md5.meta";
2009		2664
2010	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2665	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2011	aio_write $fh, 0, (length $data), $data, 0;	2666	aio_write $fh, 0, (length $data), $data, 0;
2012	undef $fh;	2667	undef $fh;
2013	aio_rename "$meta~", $meta;	2668	aio_rename "$meta~", $meta;
2014		2669
		2670	my $slaying = "?random/$md5";
		2671
		2672	if ($exit->valid) {
2015	$exit->slaying ("?random/$md5");	2673	$exit->slaying ("?random/$md5");
2016	$exit->msg (undef);	2674	$exit->msg (undef);
		2675	}
2017	}	2676	}
2018	}	2677	}
2019		2678
2020	sub cf::object::player::enter_exit {	2679	sub cf::object::player::enter_exit {
2021	my ($self, $exit) = @_;	2680	my ($self, $exit) = @_;
2022		2681
2023	return unless $self->type == cf::PLAYER;	2682	return unless $self->type == cf::PLAYER;
2024		2683
2025	if ($exit->slaying eq "/!") {
2026	#TODO: this should de-fi-ni-te-ly not be a sync-job
2027	# the problem is that $exit might not survive long enough
2028	# so it needs to be done right now, right here
2029	cf::sync_job { prepare_random_map $exit };
2030	}
2031
2032	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2033	my $hp = $exit->stats->hp;
2034	my $sp = $exit->stats->sp;
2035
2036	$self->enter_link;	2684	$self->enter_link;
2037		2685
2038	(async {	2686	(async {
2039	$self->deactivate_recursive; # just to be sure	2687	$Coro::current->{desc} = "enter_exit";
		2688
2040	unless (eval {	2689	unless (eval {
		2690	$self->deactivate_recursive; # just to be sure
		2691
		2692	# random map handling
		2693	{
		2694	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2695
		2696	prepare_random_map $exit
		2697	if $exit->slaying eq "/!";
		2698	}
		2699
		2700	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2701	my $x = $exit->stats->hp;
		2702	my $y = $exit->stats->sp;
		2703
2041	$self->goto ($slaying, $hp, $sp);	2704	$self->goto ($map, $x, $y);
2042		2705
		2706	# if exit is damned, update players death & WoR home-position
		2707	$self->contr->savebed ($map, $x, $y)
		2708	if $exit->flag (cf::FLAG_DAMNED);
		2709
2043	1;	2710	1
2044	}) {	2711	}) {
2045	$self->message ("Something went wrong deep within the crossfire server. "	2712	$self->message ("Something went wrong deep within the deliantra server. "
2046	. "I'll try to bring you back to the map you were before. "	2713	. "I'll try to bring you back to the map you were before. "
2047	. "Please report this to the dungeon master!",	2714	. "Please report this to the dungeon master!",
2048	cf::NDI_UNIQUE | cf::NDI_RED);	2715	cf::NDI_UNIQUE | cf::NDI_RED);
2049		2716
2050	warn "ERROR in enter_exit: $@";	2717	warn "ERROR in enter_exit: $@";
…		…
2069		2736
2070	utf8::encode $text;	2737	utf8::encode $text;
2071	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2738	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2072	}	2739	}
2073		2740
		2741	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2742
		2743	Send a drawinfo or msg packet to the client, formatting the msg for the
		2744	client if neccessary. C<$type> should be a string identifying the type of
		2745	the message, with C<log> being the default. If C<$color> is negative, suppress
		2746	the message unless the client supports the msg packet.
		2747
		2748	=cut
		2749
		2750	# non-persistent channels (usually the info channel)
		2751	our %CHANNEL = (
		2752	"c/identify" => {
		2753	id => "infobox",
		2754	title => "Identify",
		2755	reply => undef,
		2756	tooltip => "Items recently identified",
		2757	},
		2758	"c/examine" => {
		2759	id => "infobox",
		2760	title => "Examine",
		2761	reply => undef,
		2762	tooltip => "Signs and other items you examined",
		2763	},
		2764	"c/book" => {
		2765	id => "infobox",
		2766	title => "Book",
		2767	reply => undef,
		2768	tooltip => "The contents of a note or book",
		2769	},
		2770	"c/lookat" => {
		2771	id => "infobox",
		2772	title => "Look",
		2773	reply => undef,
		2774	tooltip => "What you saw there",
		2775	},
		2776	"c/who" => {
		2777	id => "infobox",
		2778	title => "Players",
		2779	reply => undef,
		2780	tooltip => "Shows players who are currently online",
		2781	},
		2782	"c/body" => {
		2783	id => "infobox",
		2784	title => "Body Parts",
		2785	reply => undef,
		2786	tooltip => "Shows which body parts you posess and are available",
		2787	},
		2788	"c/statistics" => {
		2789	id => "infobox",
		2790	title => "Statistics",
		2791	reply => undef,
		2792	tooltip => "Shows your primary statistics",
		2793	},
		2794	"c/skills" => {
		2795	id => "infobox",
		2796	title => "Skills",
		2797	reply => undef,
		2798	tooltip => "Shows your experience per skill and item power",
		2799	},
		2800	"c/shopitems" => {
		2801	id => "infobox",
		2802	title => "Shop Items",
		2803	reply => undef,
		2804	tooltip => "Shows the items currently for sale in this shop",
		2805	},
		2806	"c/resistances" => {
		2807	id => "infobox",
		2808	title => "Resistances",
		2809	reply => undef,
		2810	tooltip => "Shows your resistances",
		2811	},
		2812	"c/pets" => {
		2813	id => "infobox",
		2814	title => "Pets",
		2815	reply => undef,
		2816	tooltip => "Shows information abotu your pets/a specific pet",
		2817	},
		2818	"c/perceiveself" => {
		2819	id => "infobox",
		2820	title => "Perceive Self",
		2821	reply => undef,
		2822	tooltip => "You gained detailed knowledge about yourself",
		2823	},
		2824	"c/uptime" => {
		2825	id => "infobox",
		2826	title => "Uptime",
		2827	reply => undef,
		2828	tooltip => "How long the server has been running since last restart",
		2829	},
		2830	"c/mapinfo" => {
		2831	id => "infobox",
		2832	title => "Map Info",
		2833	reply => undef,
		2834	tooltip => "Information related to the maps",
		2835	},
		2836	"c/party" => {
		2837	id => "party",
		2838	title => "Party",
		2839	reply => "gsay ",
		2840	tooltip => "Messages and chat related to your party",
		2841	},
		2842	"c/death" => {
		2843	id => "death",
		2844	title => "Death",
		2845	reply => undef,
		2846	tooltip => "Reason for and more info about your most recent death",
		2847	},
		2848	"c/say" => $SAY_CHANNEL,
		2849	"c/chat" => $CHAT_CHANNEL,
		2850	);
		2851
		2852	sub cf::client::send_msg {
		2853	my ($self, $channel, $msg, $color, @extra) = @_;
		2854
		2855	$msg = $self->pl->expand_cfpod ($msg)
		2856	unless $color & cf::NDI_VERBATIM;
		2857
		2858	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2859
		2860	# check predefined channels, for the benefit of C
		2861	if ($CHANNEL{$channel}) {
		2862	$channel = $CHANNEL{$channel};
		2863
		2864	$self->ext_msg (channel_info => $channel);
		2865	$channel = $channel->{id};
		2866
		2867	} elsif (ref $channel) {
		2868	# send meta info to client, if not yet sent
		2869	unless (exists $self->{channel}{$channel->{id}}) {
		2870	$self->{channel}{$channel->{id}} = $channel;
		2871	$self->ext_msg (channel_info => $channel);
		2872	}
		2873
		2874	$channel = $channel->{id};
		2875	}
		2876
		2877	return unless @extra || length $msg;
		2878
		2879	# default colour, mask it out
		2880	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2881	if $color & cf::NDI_DEF;
		2882
		2883	my $pkt = "msg "
		2884	. $self->{json_coder}->encode (
		2885	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2886	);
		2887
		2888	# try lzf for large packets
		2889	$pkt = "lzf " . Compress::LZF::compress $pkt
		2890	if 1024 <= length $pkt and $self->{can_lzf};
		2891
		2892	# split very large packets
		2893	if (8192 < length $pkt and $self->{can_lzf}) {
		2894	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2895	$pkt = "frag";
		2896	}
		2897
		2898	$self->send_packet ($pkt);
		2899	}
		2900
2074	=item $client->ext_event ($type, %msg)	2901	=item $client->ext_msg ($type, @msg)
2075		2902
2076	Sends an exti event to the client.	2903	Sends an ext event to the client.
2077		2904
2078	=cut	2905	=cut
2079		2906
2080	sub cf::client::ext_event($$%) {	2907	sub cf::client::ext_msg($$@) {
2081	my ($self, $type, %msg) = @_;	2908	my ($self, $type, @msg) = @_;
2082		2909
		2910	if ($self->extcmd == 2) {
		2911	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2912	} elsif ($self->extcmd == 1) { # TODO: remove
2083	$msg{msgtype} = "event_$type";	2913	push @msg, msgtype => "event_$type";
2084	$self->send_packet ("ext " . cf::to_json \%msg);	2914	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2915	}
		2916	}
		2917
		2918	=item $client->ext_reply ($msgid, @msg)
		2919
		2920	Sends an ext reply to the client.
		2921
		2922	=cut
		2923
		2924	sub cf::client::ext_reply($$@) {
		2925	my ($self, $id, @msg) = @_;
		2926
		2927	if ($self->extcmd == 2) {
		2928	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2929	} elsif ($self->extcmd == 1) {
		2930	#TODO: version 1, remove
		2931	unshift @msg, msgtype => "reply", msgid => $id;
		2932	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2933	}
2085	}	2934	}
2086		2935
2087	=item $success = $client->query ($flags, "text", \&cb)	2936	=item $success = $client->query ($flags, "text", \&cb)
2088		2937
2089	Queues a query to the client, calling the given callback with	2938	Queues a query to the client, calling the given callback with
2090	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2939	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2091	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2940	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2092		2941
2093	Queries can fail, so check the return code. Or don't, as queries will become	2942	Queries can fail, so check the return code. Or don't, as queries will
2094	reliable at some point in the future.	2943	become reliable at some point in the future.
2095		2944
2096	=cut	2945	=cut
2097		2946
2098	sub cf::client::query {	2947	sub cf::client::query {
2099	my ($self, $flags, $text, $cb) = @_;	2948	my ($self, $flags, $text, $cb) = @_;
…		…
2107	utf8::encode $text;	2956	utf8::encode $text;
2108	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2957	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2109		2958
2110	$self->send_packet ($self->{query_queue}[0][0])	2959	$self->send_packet ($self->{query_queue}[0][0])
2111	if @{ $self->{query_queue} } == 1;	2960	if @{ $self->{query_queue} } == 1;
		2961
		2962	1
2112	}	2963	}
2113		2964
2114	cf::client->attach (	2965	cf::client->attach (
		2966	on_connect => sub {
		2967	my ($ns) = @_;
		2968
		2969	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2970	},
2115	on_reply => sub {	2971	on_reply => sub {
2116	my ($ns, $msg) = @_;	2972	my ($ns, $msg) = @_;
2117		2973
2118	# this weird shuffling is so that direct followup queries	2974	# this weird shuffling is so that direct followup queries
2119	# get handled first	2975	# get handled first
…		…
2131	} else {	2987	} else {
2132	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2988	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2133	}	2989	}
2134	}	2990	}
2135	},	2991	},
		2992	on_exticmd => sub {
		2993	my ($ns, $buf) = @_;
		2994
		2995	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2996
		2997	if (ref $msg) {
		2998	my ($type, $reply, @payload) =
		2999	"ARRAY" eq ref $msg
		3000	? @$msg
		3001	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3002
		3003	my @reply;
		3004
		3005	if (my $cb = $EXTICMD{$type}) {
		3006	@reply = $cb->($ns, @payload);
		3007	}
		3008
		3009	$ns->ext_reply ($reply, @reply)
		3010	if $reply;
		3011
		3012	} else {
		3013	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3014	}
		3015
		3016	cf::override;
		3017	},
2136	);	3018	);
2137		3019
2138	=item $client->async (\&cb)	3020	=item $client->async (\&cb)
2139		3021
2140	Create a new coroutine, running the specified callback. The coroutine will	3022	Create a new coroutine, running the specified callback. The coroutine will
…		…
2181	our $safe = new Safe "safe";	3063	our $safe = new Safe "safe";
2182	our $safe_hole = new Safe::Hole;	3064	our $safe_hole = new Safe::Hole;
2183		3065
2184	$SIG{FPE} = 'IGNORE';	3066	$SIG{FPE} = 'IGNORE';
2185		3067
2186	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3068	$safe->permit_only (Opcode::opset qw(
		3069	:base_core :base_mem :base_orig :base_math
		3070	grepstart grepwhile mapstart mapwhile
		3071	sort time
		3072	));
2187		3073
2188	# here we export the classes and methods available to script code	3074	# here we export the classes and methods available to script code
2189		3075
2190	=pod	3076	=pod
2191		3077
2192	The following functions and methods are available within a safe environment:	3078	The following functions and methods are available within a safe environment:
2193		3079
2194	cf::object contr pay_amount pay_player map	3080	cf::object
		3081	contr pay_amount pay_player map x y force_find force_add destroy
		3082	insert remove name archname title slaying race decrease split
		3083	value
		3084
2195	cf::object::player player	3085	cf::object::player
2196	cf::player peaceful	3086	player
2197	cf::map trigger	3087
		3088	cf::player
		3089	peaceful
		3090
		3091	cf::map
		3092	trigger
2198		3093
2199	=cut	3094	=cut
2200		3095
2201	for (	3096	for (
2202	["cf::object" => qw(contr pay_amount pay_player map)],	3097	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3098	insert remove inv nrof name archname title slaying race
		3099	decrease split destroy change_exp value msg lore send_msg)],
2203	["cf::object::player" => qw(player)],	3100	["cf::object::player" => qw(player)],
2204	["cf::player" => qw(peaceful)],	3101	["cf::player" => qw(peaceful send_msg)],
2205	["cf::map" => qw(trigger)],	3102	["cf::map" => qw(trigger)],
2206	) {	3103	) {
2207	no strict 'refs';	3104	no strict 'refs';
2208	my ($pkg, @funs) = @$_;	3105	my ($pkg, @funs) = @$_;
2209	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3106	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2226	my ($code, %vars) = @_;	3123	my ($code, %vars) = @_;
2227		3124
2228	my $qcode = $code;	3125	my $qcode = $code;
2229	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3126	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2230	$qcode =~ s/\n/\\n/g;	3127	$qcode =~ s/\n/\\n/g;
		3128
		3129	%vars = (_dummy => 0) unless %vars;
2231		3130
2232	local $_;	3131	local $_;
2233	local @safe::cf::_safe_eval_args = values %vars;	3132	local @safe::cf::_safe_eval_args = values %vars;
2234		3133
2235	my $eval =	3134	my $eval =
…		…
2278	=back	3177	=back
2279		3178
2280	=cut	3179	=cut
2281		3180
2282	#############################################################################	3181	#############################################################################
2283
2284	=head2 EXTENSION DATABASE SUPPORT
2285
2286	Crossfire maintains a very simple database for extension use. It can
2287	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2288	convert to/from binary).
2289
2290	The parameter C<$family> should best start with the name of the extension
2291	using it, it should be unique.
2292
2293	=over 4
2294
2295	=item $value = cf::db_get $family => $key
2296
2297	Returns a single value from the database.
2298
2299	=item cf::db_put $family => $key => $value
2300
2301	Stores the given C<$value> in the family.
2302
2303	=cut
2304
2305	our $DB;
2306
2307	sub db_init {
2308	unless ($DB) {
2309	$DB = BDB::db_create $DB_ENV;
2310
2311	cf::sync_job {
2312	eval {
2313	$DB->set_flags (BDB::CHKSUM);
2314
2315	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2316	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2317	cf::cleanup "db_open(db): $!" if $!;
2318	};
2319	cf::cleanup "db_open(db): $@" if $@;
2320	};
2321	}
2322	}
2323
2324	sub db_get($$) {
2325	my $key = "$_[0]/$_[1]";
2326
2327	cf::sync_job {
2328	BDB::db_get $DB, undef, $key, my $data;
2329
2330	$! ? ()
2331	: $data
2332	}
2333	}
2334
2335	sub db_put($$$) {
2336	BDB::dbreq_pri 4;
2337	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2338	}
2339
2340	=item cf::cache $id => [$paths...], $processversion => $process
2341
2342	Generic caching function that returns the value of the resource $id,
2343	caching and regenerating as required.
2344
2345	This function can block.
2346
2347	=cut
2348
2349	sub cache {
2350	my ($id, $src, $processversion, $process) = @_;
2351
2352	my $meta =
2353	join "\x00",
2354	$processversion,
2355	map {
2356	aio_stat $_
2357	and Carp::croak "$_: $!";
2358
2359	($_, (stat _)[7,9])
2360	} @$src;
2361
2362	my $dbmeta = db_get cache => "$id/meta";
2363	if ($dbmeta ne $meta) {
2364	# changed, we may need to process
2365
2366	my @data;
2367	my $md5;
2368
2369	for (0 .. $#$src) {
2370	0 <= aio_load $src->[$_], $data[$_]
2371	or Carp::croak "$src->[$_]: $!";
2372	}
2373
2374	# if processing is expensive, check
2375	# checksum first
2376	if (1) {
2377	$md5 =
2378	join "\x00",
2379	$processversion,
2380	map {
2381	Coro::cede;
2382	($src->[$_], Digest::MD5::md5_hex $data[$_])
2383	} 0.. $#$src;
2384
2385
2386	my $dbmd5 = db_get cache => "$id/md5";
2387	if ($dbmd5 eq $md5) {
2388	db_put cache => "$id/meta", $meta;
2389
2390	return db_get cache => "$id/data";
2391	}
2392	}
2393
2394	my $t1 = Time::HiRes::time;
2395	my $data = $process->(\@data);
2396	my $t2 = Time::HiRes::time;
2397
2398	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2399
2400	db_put cache => "$id/data", $data;
2401	db_put cache => "$id/md5" , $md5;
2402	db_put cache => "$id/meta", $meta;
2403
2404	return $data;
2405	}
2406
2407	db_get cache => "$id/data"
2408	}
2409
2410	=item fork_call { }, $args
2411
2412	Executes the given code block with the given arguments in a seperate
2413	process, returning the results. Everything must be serialisable with
2414	Coro::Storable. May, of course, block. Note that the executed sub may
2415	never block itself or use any form of Event handling.
2416
2417	=cut
2418
2419	sub fork_call(&@) {
2420	my ($cb, @args) = @_;
2421
2422	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2423	# or die "socketpair: $!";
2424	pipe my $fh1, my $fh2
2425	or die "pipe: $!";
2426
2427	if (my $pid = fork) {
2428	close $fh2;
2429
2430	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2431	$res = Coro::Storable::thaw $res;
2432
2433	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2434
2435	die $$res unless "ARRAY" eq ref $res;
2436
2437	return wantarray ? @$res : $res->[-1];
2438	} else {
2439	local $SIG{__WARN__};
2440	eval {
2441	local $SIG{__DIE__};
2442	close $fh1;
2443
2444	my @res = eval { $cb->(@args) };
2445	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2446	};
2447
2448	warn $@ if $@;
2449	_exit 0;
2450	}
2451	}
2452
2453
2454
2455	#############################################################################
2456	# the server's init and main functions	3182	# the server's init and main functions
2457		3183
2458	sub load_facedata($) {	3184	sub load_facedata($) {
2459	my ($path) = @_;	3185	my ($path) = @_;
		3186
		3187	# HACK to clear player env face cache, we need some signal framework
		3188	# for this (global event?)
		3189	%ext::player_env::MUSIC_FACE_CACHE = ();
		3190
		3191	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2460		3192
2461	warn "loading facedata from $path\n";	3193	warn "loading facedata from $path\n";
2462		3194
2463	my $facedata;	3195	my $facedata;
2464	0 < aio_load $path, $facedata	3196	0 < aio_load $path, $facedata
…		…
2467	$facedata = Coro::Storable::thaw $facedata;	3199	$facedata = Coro::Storable::thaw $facedata;
2468		3200
2469	$facedata->{version} == 2	3201	$facedata->{version} == 2
2470	or cf::cleanup "$path: version mismatch, cannot proceed.";	3202	or cf::cleanup "$path: version mismatch, cannot proceed.";
2471		3203
		3204	# patch in the exptable
		3205	$facedata->{resource}{"res/exp_table"} = {
		3206	type => FT_RSRC,
		3207	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3208	};
		3209	cf::cede_to_tick;
		3210
2472	{	3211	{
2473	my $faces = $facedata->{faceinfo};	3212	my $faces = $facedata->{faceinfo};
2474		3213
2475	while (my ($face, $info) = each %$faces) {	3214	while (my ($face, $info) = each %$faces) {
2476	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3215	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3216
2477	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3217	cf::face::set_visibility $idx, $info->{visibility};
		3218	cf::face::set_magicmap $idx, $info->{magicmap};
2478	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3219	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2479	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3220	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2480	Coro::cede;	3221
		3222	cf::cede_to_tick;
2481	}	3223	}
2482		3224
2483	while (my ($face, $info) = each %$faces) {	3225	while (my ($face, $info) = each %$faces) {
2484	next unless $info->{smooth};	3226	next unless $info->{smooth};
		3227
2485	my $idx = cf::face::find $face	3228	my $idx = cf::face::find $face
2486	or next;	3229	or next;
		3230
2487	if (my $smooth = cf::face::find $info->{smooth}) {	3231	if (my $smooth = cf::face::find $info->{smooth}) {
		3232	cf::face::set_smooth $idx, $smooth;
2488	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3233	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2489	} else {	3234	} else {
2490	warn "smooth face '$info->{smooth}' not found for face '$face'";	3235	warn "smooth face '$info->{smooth}' not found for face '$face'";
2491	}	3236	}
2492	Coro::cede;	3237
		3238	cf::cede_to_tick;
2493	}	3239	}
2494	}	3240	}
2495		3241
2496	{	3242	{
2497	my $anims = $facedata->{animinfo};	3243	my $anims = $facedata->{animinfo};
2498		3244
2499	while (my ($anim, $info) = each %$anims) {	3245	while (my ($anim, $info) = each %$anims) {
2500	cf::anim::set $anim, $info->{frames}, $info->{facings};	3246	cf::anim::set $anim, $info->{frames}, $info->{facings};
2501	Coro::cede;	3247	cf::cede_to_tick;
2502	}	3248	}
2503		3249
2504	cf::anim::invalidate_all; # d'oh	3250	cf::anim::invalidate_all; # d'oh
2505	}	3251	}
2506		3252
		3253	{
		3254	# TODO: for gcfclient pleasure, we should give resources
		3255	# that gcfclient doesn't grok a >10000 face index.
		3256	my $res = $facedata->{resource};
		3257
		3258	while (my ($name, $info) = each %$res) {
		3259	if (defined $info->{type}) {
		3260	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3261	my $data;
		3262
		3263	if ($info->{type} & 1) {
		3264	# prepend meta info
		3265
		3266	my $meta = $enc->encode ({
		3267	name => $name,
		3268	%{ $info->{meta} || {} },
		3269	});
		3270
		3271	$data = pack "(w/a*)*", $meta, $info->{data};
		3272	} else {
		3273	$data = $info->{data};
		3274	}
		3275
		3276	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3277	cf::face::set_type $idx, $info->{type};
		3278	} else {
		3279	$RESOURCE{$name} = $info;
		3280	}
		3281
		3282	cf::cede_to_tick;
		3283	}
		3284	}
		3285
		3286	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3287
2507	1	3288	1
2508	}	3289	}
2509		3290
		3291	cf::global->attach (on_resource_update => sub {
		3292	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3293	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3294
		3295	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3296	my $sound = $soundconf->{compat}[$_]
		3297	or next;
		3298
		3299	my $face = cf::face::find "sound/$sound->[1]";
		3300	cf::sound::set $sound->[0] => $face;
		3301	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3302	}
		3303
		3304	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3305	my $face = cf::face::find "sound/$v";
		3306	cf::sound::set $k => $face;
		3307	}
		3308	}
		3309	});
		3310
		3311	register_exticmd fx_want => sub {
		3312	my ($ns, $want) = @_;
		3313
		3314	while (my ($k, $v) = each %$want) {
		3315	$ns->fx_want ($k, $v);
		3316	}
		3317	};
		3318
		3319	sub load_resource_file($) {
		3320	my $guard = lock_acquire "load_resource_file";
		3321
		3322	my $status = load_resource_file_ $_[0];
		3323	get_slot 0.1, 100;
		3324	cf::arch::commit_load;
		3325
		3326	$status
		3327	}
		3328
2510	sub reload_regions {	3329	sub reload_regions {
		3330	# HACK to clear player env face cache, we need some signal framework
		3331	# for this (global event?)
		3332	%ext::player_env::MUSIC_FACE_CACHE = ();
		3333
2511	load_resource_file "$MAPDIR/regions"	3334	load_resource_file "$MAPDIR/regions"
2512	or die "unable to load regions file\n";	3335	or die "unable to load regions file\n";
		3336
		3337	for (cf::region::list) {
		3338	$_->{match} = qr/$_->{match}/
		3339	if exists $_->{match};
		3340	}
2513	}	3341	}
2514		3342
2515	sub reload_facedata {	3343	sub reload_facedata {
2516	load_facedata "$DATADIR/facedata"	3344	load_facedata "$DATADIR/facedata"
2517	or die "unable to load facedata\n";	3345	or die "unable to load facedata\n";
…		…
2528	}	3356	}
2529		3357
2530	sub reload_resources {	3358	sub reload_resources {
2531	warn "reloading resource files...\n";	3359	warn "reloading resource files...\n";
2532		3360
2533	reload_regions;
2534	reload_facedata;	3361	reload_facedata;
2535	reload_archetypes;	3362	reload_archetypes;
		3363	reload_regions;
2536	reload_treasures;	3364	reload_treasures;
2537		3365
2538	warn "finished reloading resource files\n";	3366	warn "finished reloading resource files\n";
2539	}	3367	}
2540		3368
2541	sub init {	3369	sub reload_config {
2542	reload_resources;
2543	}
2544
2545	sub cfg_load {
2546	open my $fh, "<:utf8", "$CONFDIR/config"	3370	open my $fh, "<:utf8", "$CONFDIR/config"
2547	or return;	3371	or return;
2548		3372
2549	local $/;	3373	local $/;
2550	*CFG = YAML::Syck::Load <$fh>;	3374	*CFG = YAML::Load <$fh>;
2551		3375
2552	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3376	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2553		3377
2554	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3378	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2555	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3379	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2561	};	3385	};
2562	warn $@ if $@;	3386	warn $@ if $@;
2563	}	3387	}
2564	}	3388	}
2565		3389
		3390	sub pidfile() {
		3391	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3392	or die "$PIDFILE: $!";
		3393	flock $fh, &Fcntl::LOCK_EX
		3394	or die "$PIDFILE: flock: $!";
		3395	$fh
		3396	}
		3397
		3398	# make sure only one server instance is running at any one time
		3399	sub atomic {
		3400	my $fh = pidfile;
		3401
		3402	my $pid = <$fh>;
		3403	kill 9, $pid if $pid > 0;
		3404
		3405	seek $fh, 0, 0;
		3406	print $fh $$;
		3407	}
		3408
		3409	sub main_loop {
		3410	warn "EV::loop starting\n";
		3411	if (1) {
		3412	EV::loop;
		3413	}
		3414	warn "EV::loop returned\n";
		3415	goto &main_loop unless $REALLY_UNLOOP;
		3416	}
		3417
2566	sub main {	3418	sub main {
		3419	cf::init_globals; # initialise logging
		3420
		3421	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3422	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3423	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3424	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3425
		3426	cf::init_experience;
		3427	cf::init_anim;
		3428	cf::init_attackmess;
		3429	cf::init_dynamic;
		3430
		3431	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3432
2567	# we must not ever block the main coroutine	3433	# we must not ever block the main coroutine
2568	local $Coro::idle = sub {	3434	local $Coro::idle = sub {
2569	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3435	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2570	(async {	3436	(async {
2571	Event::one_event;	3437	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3438	EV::loop EV::LOOP_ONESHOT;
2572	})->prio (Coro::PRIO_MAX);	3439	})->prio (Coro::PRIO_MAX);
2573	};	3440	};
2574		3441
2575	cfg_load;	3442	evthread_start IO::AIO::poll_fileno;
		3443
		3444	cf::sync_job {
		3445	reload_resources;
		3446	reload_config;
2576	db_init;	3447	db_init;
		3448
		3449	cf::load_settings;
		3450	cf::load_materials;
		3451	cf::init_uuid;
		3452	cf::init_signals;
		3453	cf::init_commands;
		3454	cf::init_skills;
		3455
		3456	cf::init_beforeplay;
		3457
		3458	atomic;
		3459
2577	load_extensions;	3460	load_extensions;
2578		3461
2579	$TICK_WATCHER->start;	3462	utime time, time, $RUNTIMEFILE;
2580	Event::loop;	3463
		3464	# no (long-running) fork's whatsoever before this point(!)
		3465	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3466
		3467	(pop @POST_INIT)->(0) while @POST_INIT;
		3468	};
		3469
		3470	main_loop;
2581	}	3471	}
2582		3472
2583	#############################################################################	3473	#############################################################################
2584	# initialisation and cleanup	3474	# initialisation and cleanup
2585		3475
2586	# install some emergency cleanup handlers	3476	# install some emergency cleanup handlers
2587	BEGIN {	3477	BEGIN {
		3478	our %SIGWATCHER = ();
2588	for my $signal (qw(INT HUP TERM)) {	3479	for my $signal (qw(INT HUP TERM)) {
2589	Event->signal (	3480	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2590	reentrant => 0,
2591	data => WF_AUTOCANCEL,
2592	signal => $signal,
2593	prio => 0,
2594	cb => sub {
2595	cf::cleanup "SIG$signal";	3481	cf::cleanup "SIG$signal";
2596	},
2597	);	3482	};
		3483	}
		3484	}
		3485
		3486	sub write_runtime_sync {
		3487	# first touch the runtime file to show we are still running:
		3488	# the fsync below can take a very very long time.
		3489
		3490	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3491
		3492	my $guard = cf::lock_acquire "write_runtime";
		3493
		3494	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3495	or return;
		3496
		3497	my $value = $cf::RUNTIME + 90 + 10;
		3498	# 10 is the runtime save interval, for a monotonic clock
		3499	# 60 allows for the watchdog to kill the server.
		3500
		3501	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3502	and return;
		3503
		3504	# always fsync - this file is important
		3505	aio_fsync $fh
		3506	and return;
		3507
		3508	# touch it again to show we are up-to-date
		3509	aio_utime $fh, undef, undef;
		3510
		3511	close $fh
		3512	or return;
		3513
		3514	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3515	and return;
		3516
		3517	warn "runtime file written.\n";
		3518
2598	}	3519	1
		3520	}
		3521
		3522	our $uuid_lock;
		3523	our $uuid_skip;
		3524
		3525	sub write_uuid_sync($) {
		3526	$uuid_skip ||= $_[0];
		3527
		3528	return if $uuid_lock;
		3529	local $uuid_lock = 1;
		3530
		3531	my $uuid = "$LOCALDIR/uuid";
		3532
		3533	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3534	or return;
		3535
		3536	my $value = uuid_seq uuid_cur;
		3537
		3538	unless ($value) {
		3539	warn "cowardly refusing to write zero uuid value!\n";
		3540	return;
		3541	}
		3542
		3543	my $value = uuid_str $value + $uuid_skip;
		3544	$uuid_skip = 0;
		3545
		3546	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3547	and return;
		3548
		3549	# always fsync - this file is important
		3550	aio_fsync $fh
		3551	and return;
		3552
		3553	close $fh
		3554	or return;
		3555
		3556	aio_rename "$uuid~", $uuid
		3557	and return;
		3558
		3559	warn "uuid file written ($value).\n";
		3560
		3561	1
		3562
		3563	}
		3564
		3565	sub write_uuid($$) {
		3566	my ($skip, $sync) = @_;
		3567
		3568	$sync ? write_uuid_sync $skip
		3569	: async { write_uuid_sync $skip };
2599	}	3570	}
2600		3571
2601	sub emergency_save() {	3572	sub emergency_save() {
2602	my $freeze_guard = cf::freeze_mainloop;	3573	my $freeze_guard = cf::freeze_mainloop;
2603		3574
2604	warn "enter emergency perl save\n";	3575	warn "emergency_perl_save: enter\n";
2605		3576
2606	cf::sync_job {	3577	cf::sync_job {
		3578	# this is a trade-off: we want to be very quick here, so
		3579	# save all maps without fsync, and later call a global sync
		3580	# (which in turn might be very very slow)
		3581	local $USE_FSYNC = 0;
		3582
2607	# use a peculiar iteration method to avoid tripping on perl	3583	# use a peculiar iteration method to avoid tripping on perl
2608	# refcount bugs in for. also avoids problems with players	3584	# refcount bugs in for. also avoids problems with players
2609	# and maps saved/destroyed asynchronously.	3585	# and maps saved/destroyed asynchronously.
2610	warn "begin emergency player save\n";	3586	warn "emergency_perl_save: begin player save\n";
2611	for my $login (keys %cf::PLAYER) {	3587	for my $login (keys %cf::PLAYER) {
2612	my $pl = $cf::PLAYER{$login} or next;	3588	my $pl = $cf::PLAYER{$login} or next;
2613	$pl->valid or next;	3589	$pl->valid or next;
		3590	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2614	$pl->save;	3591	$pl->save;
2615	}	3592	}
2616	warn "end emergency player save\n";	3593	warn "emergency_perl_save: end player save\n";
2617		3594
2618	warn "begin emergency map save\n";	3595	warn "emergency_perl_save: begin map save\n";
2619	for my $path (keys %cf::MAP) {	3596	for my $path (keys %cf::MAP) {
2620	my $map = $cf::MAP{$path} or next;	3597	my $map = $cf::MAP{$path} or next;
2621	$map->valid or next;	3598	$map->valid or next;
2622	$map->save;	3599	$map->save;
2623	}	3600	}
2624	warn "end emergency map save\n";	3601	warn "emergency_perl_save: end map save\n";
2625		3602
2626	warn "begin emergency database checkpoint\n";	3603	warn "emergency_perl_save: begin database checkpoint\n";
2627	BDB::db_env_txn_checkpoint $DB_ENV;	3604	BDB::db_env_txn_checkpoint $DB_ENV;
2628	warn "end emergency database checkpoint\n";	3605	warn "emergency_perl_save: end database checkpoint\n";
		3606
		3607	warn "emergency_perl_save: begin write uuid\n";
		3608	write_uuid_sync 1;
		3609	warn "emergency_perl_save: end write uuid\n";
2629	};	3610	};
2630		3611
		3612	warn "emergency_perl_save: starting sync()\n";
		3613	IO::AIO::aio_sync sub {
		3614	warn "emergency_perl_save: finished sync()\n";
		3615	};
		3616
2631	warn "leave emergency perl save\n";	3617	warn "emergency_perl_save: leave\n";
2632	}	3618	}
2633		3619
2634	sub post_cleanup {	3620	sub post_cleanup {
2635	my ($make_core) = @_;	3621	my ($make_core) = @_;
2636		3622
2637	warn Carp::longmess "post_cleanup backtrace"	3623	warn Carp::longmess "post_cleanup backtrace"
2638	if $make_core;	3624	if $make_core;
		3625
		3626	my $fh = pidfile;
		3627	unlink $PIDFILE if <$fh> == $$;
		3628	}
		3629
		3630	# a safer delete_package, copied from Symbol
		3631	sub clear_package($) {
		3632	my $pkg = shift;
		3633
		3634	# expand to full symbol table name if needed
		3635	unless ($pkg =~ /^main::.*::$/) {
		3636	$pkg = "main$pkg" if $pkg =~ /^::/;
		3637	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3638	$pkg .= '::' unless $pkg =~ /::$/;
		3639	}
		3640
		3641	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3642	my $stem_symtab = *{$stem}{HASH};
		3643
		3644	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3645	or return;
		3646
		3647	# clear all symbols
		3648	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3649	for my $name (keys %$leaf_symtab) {
		3650	_gv_clear *{"$pkg$name"};
		3651	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3652	}
		3653	warn "cleared package $pkg\n";#d#
2639	}	3654	}
2640		3655
2641	sub do_reload_perl() {	3656	sub do_reload_perl() {
2642	# can/must only be called in main	3657	# can/must only be called in main
2643	if ($Coro::current != $Coro::main) {	3658	if ($Coro::current != $Coro::main) {
2644	warn "can only reload from main coroutine";	3659	warn "can only reload from main coroutine";
2645	return;	3660	return;
2646	}	3661	}
2647		3662
		3663	return if $RELOAD++;
		3664
		3665	my $t1 = EV::time;
		3666
		3667	while ($RELOAD) {
2648	warn "reloading...";	3668	warn "reloading...";
2649		3669
2650	warn "entering sync_job";	3670	warn "entering sync_job";
2651		3671
2652	cf::sync_job {	3672	cf::sync_job {
2653	cf::write_runtime; # external watchdog should not bark	3673	cf::write_runtime_sync; # external watchdog should not bark
2654	cf::emergency_save;	3674	cf::emergency_save;
2655	cf::write_runtime; # external watchdog should not bark	3675	cf::write_runtime_sync; # external watchdog should not bark
2656		3676
2657	warn "syncing database to disk";	3677	warn "syncing database to disk";
2658	BDB::db_env_txn_checkpoint $DB_ENV;	3678	BDB::db_env_txn_checkpoint $DB_ENV;
2659		3679
2660	# if anything goes wrong in here, we should simply crash as we already saved	3680	# if anything goes wrong in here, we should simply crash as we already saved
2661		3681
2662	warn "cancelling all WF_AUTOCANCEL watchers";
2663	for (Event::all_watchers) {
2664	$_->cancel if $_->data & WF_AUTOCANCEL;
2665	}
2666
2667	warn "flushing outstanding aio requests";	3682	warn "flushing outstanding aio requests";
2668	for (;;) {
2669	BDB::flush;
2670	IO::AIO::flush;
2671	Coro::cede;
2672	last unless IO::AIO::nreqs || BDB::nreqs;	3683	while (IO::AIO::nreqs || BDB::nreqs) {
2673	warn "iterate...";	3684	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2674	}
2675
2676	++$RELOAD;
2677
2678	warn "cancelling all extension coros";
2679	$_->cancel for values %EXT_CORO;
2680	%EXT_CORO = ();
2681
2682	warn "removing commands";
2683	%COMMAND = ();
2684
2685	warn "removing ext commands";
2686	%EXTCMD = ();
2687
2688	warn "unloading/nuking all extensions";
2689	for my $pkg (@EXTS) {
2690	warn "... unloading $pkg";
2691
2692	if (my $cb = $pkg->can ("unload")) {
2693	eval {
2694	$cb->($pkg);
2695	1
2696	} or warn "$pkg unloaded, but with errors: $@";
2697	}	3685	}
2698		3686
2699	warn "... nuking $pkg";	3687	warn "cancelling all extension coros";
2700	Symbol::delete_package $pkg;	3688	$_->cancel for values %EXT_CORO;
2701	}	3689	%EXT_CORO = ();
2702		3690
2703	warn "unloading all perl modules loaded from $LIBDIR";	3691	warn "removing commands";
2704	while (my ($k, $v) = each %INC) {	3692	%COMMAND = ();
2705	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2706		3693
		3694	warn "removing ext/exti commands";
		3695	%EXTCMD = ();
		3696	%EXTICMD = ();
		3697
		3698	warn "unloading/nuking all extensions";
		3699	for my $pkg (@EXTS) {
2707	warn "... unloading $k";	3700	warn "... unloading $pkg";
2708	delete $INC{$k};
2709		3701
2710	$k =~ s/\.pm$//;
2711	$k =~ s/\//::/g;
2712
2713	if (my $cb = $k->can ("unload_module")) {	3702	if (my $cb = $pkg->can ("unload")) {
		3703	eval {
2714	$cb->();	3704	$cb->($pkg);
		3705	1
		3706	} or warn "$pkg unloaded, but with errors: $@";
		3707	}
		3708
		3709	warn "... clearing $pkg";
		3710	clear_package $pkg;
2715	}	3711	}
2716		3712
2717	Symbol::delete_package $k;	3713	warn "unloading all perl modules loaded from $LIBDIR";
		3714	while (my ($k, $v) = each %INC) {
		3715	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3716
		3717	warn "... unloading $k";
		3718	delete $INC{$k};
		3719
		3720	$k =~ s/\.pm$//;
		3721	$k =~ s/\//::/g;
		3722
		3723	if (my $cb = $k->can ("unload_module")) {
		3724	$cb->();
		3725	}
		3726
		3727	clear_package $k;
2718	}	3728	}
2719		3729
2720	warn "getting rid of safe::, as good as possible";	3730	warn "getting rid of safe::, as good as possible";
2721	Symbol::delete_package "safe::$_"	3731	clear_package "safe::$_"
2722	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3732	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2723		3733
2724	warn "unloading cf.pm \"a bit\"";	3734	warn "unloading cf.pm \"a bit\"";
2725	delete $INC{"cf.pm"};	3735	delete $INC{"cf.pm"};
2726	delete $INC{"cf/pod.pm"};	3736	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2727		3737
2728	# don't, removes xs symbols, too,	3738	# don't, removes xs symbols, too,
2729	# and global variables created in xs	3739	# and global variables created in xs
2730	#Symbol::delete_package __PACKAGE__;	3740	#clear_package __PACKAGE__;
2731		3741
2732	warn "unload completed, starting to reload now";	3742	warn "unload completed, starting to reload now";
2733		3743
2734	warn "reloading cf.pm";	3744	warn "reloading cf.pm";
2735	require cf;	3745	require cf;
2736	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3746	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2737		3747
2738	warn "loading config and database again";	3748	warn "loading config and database again";
2739	cf::cfg_load;	3749	cf::reload_config;
2740		3750
2741	warn "loading extensions";	3751	warn "loading extensions";
2742	cf::load_extensions;	3752	cf::load_extensions;
2743		3753
		3754	if ($REATTACH_ON_RELOAD) {
2744	warn "reattaching attachments to objects/players";	3755	warn "reattaching attachments to objects/players";
2745	_global_reattach; # objects, sockets	3756	_global_reattach; # objects, sockets
2746	warn "reattaching attachments to maps";	3757	warn "reattaching attachments to maps";
2747	reattach $_ for values %MAP;	3758	reattach $_ for values %MAP;
2748	warn "reattaching attachments to players";	3759	warn "reattaching attachments to players";
2749	reattach $_ for values %PLAYER;	3760	reattach $_ for values %PLAYER;
		3761	}
2750		3762
		3763	warn "running post_init jobs";
		3764	(pop @POST_INIT)->(1) while @POST_INIT;
		3765
2751	warn "leaving sync_job";	3766	warn "leaving sync_job";
2752		3767
2753	1	3768	1
2754	} or do {	3769	} or do {
2755	warn $@;	3770	warn $@;
2756	warn "error while reloading, exiting.";	3771	cf::cleanup "error while reloading, exiting.";
2757	exit 1;
2758	};	3772	};
2759		3773
2760	warn "reloaded";	3774	warn "reloaded";
		3775	--$RELOAD;
		3776	}
		3777
		3778	$t1 = EV::time - $t1;
		3779	warn "reload completed in ${t1}s\n";
2761	};	3780	};
2762		3781
2763	our $RELOAD_WATCHER; # used only during reload	3782	our $RELOAD_WATCHER; # used only during reload
2764		3783
2765	sub reload_perl() {	3784	sub reload_perl() {
2766	# doing reload synchronously and two reloads happen back-to-back,	3785	# doing reload synchronously and two reloads happen back-to-back,
2767	# coro crashes during coro_state_free->destroy here.	3786	# coro crashes during coro_state_free->destroy here.
2768		3787
2769	$RELOAD_WATCHER ||= Event->timer (	3788	$RELOAD_WATCHER ||= cf::async {
2770	reentrant => 0,	3789	Coro::AIO::aio_wait cache_extensions;
2771	after => 0,	3790
2772	data => WF_AUTOCANCEL,	3791	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
2773	cb => sub {
2774	do_reload_perl;	3792	do_reload_perl;
2775	undef $RELOAD_WATCHER;	3793	undef $RELOAD_WATCHER;
2776	},	3794	};
2777	);	3795	};
2778	}	3796	}
2779		3797
2780	register_command "reload" => sub {	3798	register_command "reload" => sub {
2781	my ($who, $arg) = @_;	3799	my ($who, $arg) = @_;
2782		3800
2783	if ($who->flag (FLAG_WIZ)) {	3801	if ($who->flag (FLAG_WIZ)) {
2784	$who->message ("reloading server.");	3802	$who->message ("reloading server.");
		3803	async {
		3804	$Coro::current->{desc} = "perl_reload";
2785	async { reload_perl };	3805	reload_perl;
		3806	};
2786	}	3807	}
2787	};	3808	};
2788		3809
2789	unshift @INC, $LIBDIR;	3810	unshift @INC, $LIBDIR;
2790		3811
…		…
2792		3813
2793	our @WAIT_FOR_TICK;	3814	our @WAIT_FOR_TICK;
2794	our @WAIT_FOR_TICK_BEGIN;	3815	our @WAIT_FOR_TICK_BEGIN;
2795		3816
2796	sub wait_for_tick {	3817	sub wait_for_tick {
2797	return unless $TICK_WATCHER->is_active;
2798	return if $Coro::current == $Coro::main;	3818	return if tick_inhibit || $Coro::current == $Coro::main;
2799		3819
2800	my $signal = new Coro::Signal;	3820	my $signal = new Coro::Signal;
2801	push @WAIT_FOR_TICK, $signal;	3821	push @WAIT_FOR_TICK, $signal;
2802	$signal->wait;	3822	$signal->wait;
2803	}	3823	}
2804		3824
2805	sub wait_for_tick_begin {	3825	sub wait_for_tick_begin {
2806	return unless $TICK_WATCHER->is_active;
2807	return if $Coro::current == $Coro::main;	3826	return if tick_inhibit || $Coro::current == $Coro::main;
2808		3827
2809	my $signal = new Coro::Signal;	3828	my $signal = new Coro::Signal;
2810	push @WAIT_FOR_TICK_BEGIN, $signal;	3829	push @WAIT_FOR_TICK_BEGIN, $signal;
2811	$signal->wait;	3830	$signal->wait;
2812	}	3831	}
2813		3832
2814	$TICK_WATCHER = Event->timer (	3833	sub tick {
2815	reentrant => 0,
2816	parked => 1,
2817	prio => 0,
2818	at => $NEXT_TICK || $TICK,
2819	data => WF_AUTOCANCEL,
2820	cb => sub {
2821	if ($Coro::current != $Coro::main) {	3834	if ($Coro::current != $Coro::main) {
2822	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3835	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2823	unless ++$bug_warning > 10;	3836	unless ++$bug_warning > 10;
2824	return;	3837	return;
2825	}	3838	}
2826		3839
2827	$NOW = Event::time;
2828
2829	cf::server_tick; # one server iteration	3840	cf::server_tick; # one server iteration
2830		3841
2831	$RUNTIME += $TICK;
2832	$NEXT_TICK += $TICK;
2833
2834	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3842	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2835	$NEXT_RUNTIME_WRITE = $NOW + 10;	3843	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2836	Coro::async_pool {	3844	Coro::async_pool {
		3845	$Coro::current->{desc} = "runtime saver";
2837	write_runtime	3846	write_runtime_sync
2838	or warn "ERROR: unable to write runtime file: $!";	3847	or warn "ERROR: unable to write runtime file: $!";
2839	};
2840	}	3848	};
		3849	}
2841		3850
2842	# my $AFTER = Event::time;
2843	# warn $AFTER - $NOW;#d#
2844
2845	# if we are delayed by four ticks or more, skip them all
2846	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2847
2848	$TICK_WATCHER->at ($NEXT_TICK);
2849	$TICK_WATCHER->start;
2850
2851	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3851	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2852	$sig->send;	3852	$sig->send;
2853	}	3853	}
2854	while (my $sig = shift @WAIT_FOR_TICK) {	3854	while (my $sig = shift @WAIT_FOR_TICK) {
2855	$sig->send;	3855	$sig->send;
2856	}
2857
2858	_post_tick;
2859	},	3856	}
2860	);	3857
		3858	$LOAD = ($NOW - $TICK_START) / $TICK;
		3859	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3860
		3861	if (0) {
		3862	if ($NEXT_TICK) {
		3863	my $jitter = $TICK_START - $NEXT_TICK;
		3864	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3865	warn "jitter $JITTER\n";#d#
		3866	}
		3867	}
		3868	}
2861		3869
2862	{	3870	{
2863	BDB::max_poll_time $TICK * 0.1;	3871	# configure BDB
2864	$BDB_POLL_WATCHER = Event->io (	3872
2865	reentrant => 0,
2866	fd => BDB::poll_fileno,
2867	poll => 'r',
2868	prio => 0,
2869	data => WF_AUTOCANCEL,
2870	cb => \&BDB::poll_cb,
2871	);
2872	BDB::min_parallel 8;	3873	BDB::min_parallel 8;
2873		3874	BDB::max_poll_reqs $TICK * 0.1;
2874	BDB::set_sync_prepare {	3875	$AnyEvent::BDB::WATCHER->priority (1);
2875	my $status;
2876	my $current = $Coro::current;
2877	(
2878	sub {
2879	$status = $!;
2880	$current->ready; undef $current;
2881	},
2882	sub {
2883	Coro::schedule while defined $current;
2884	$! = $status;
2885	},
2886	)
2887	};
2888		3876
2889	unless ($DB_ENV) {	3877	unless ($DB_ENV) {
2890	$DB_ENV = BDB::db_env_create;	3878	$DB_ENV = BDB::db_env_create;
		3879	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3880	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3881	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3882	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3883	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2891		3884
2892	cf::sync_job {	3885	cf::sync_job {
2893	eval {	3886	eval {
2894	BDB::db_env_open	3887	BDB::db_env_open
2895	$DB_ENV,	3888	$DB_ENV,
…		…
2897	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3890	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2898	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3891	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2899	0666;	3892	0666;
2900		3893
2901	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	3894	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2902
2903	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2904	$DB_ENV->set_lk_detect;
2905	};	3895	};
2906		3896
2907	cf::cleanup "db_env_open(db): $@" if $@;	3897	cf::cleanup "db_env_open(db): $@" if $@;
2908	};	3898	};
2909	}	3899	}
		3900
		3901	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3902	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3903	};
		3904	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3905	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3906	};
		3907	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3908	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3909	};
2910	}	3910	}
2911		3911
2912	{	3912	{
		3913	# configure IO::AIO
		3914
2913	IO::AIO::min_parallel 8;	3915	IO::AIO::min_parallel 8;
2914
2915	undef $Coro::AIO::WATCHER;
2916	IO::AIO::max_poll_time $TICK * 0.1;	3916	IO::AIO::max_poll_time $TICK * 0.1;
2917	$AIO_POLL_WATCHER = Event->io (	3917	undef $AnyEvent::AIO::WATCHER;
2918	reentrant => 0,	3918	}
2919	data => WF_AUTOCANCEL,	3919
2920	fd => IO::AIO::poll_fileno,	3920	my $_log_backtrace;
2921	poll => 'r',	3921
2922	prio => 6,	3922	sub _log_backtrace {
2923	cb => \&IO::AIO::poll_cb,	3923	my ($msg, @addr) = @_;
2924	);	3924
		3925	$msg =~ s/\n//;
		3926
		3927	# limit the # of concurrent backtraces
		3928	if ($_log_backtrace < 2) {
		3929	++$_log_backtrace;
		3930	my $perl_bt = Carp::longmess $msg;
		3931	async {
		3932	$Coro::current->{desc} = "abt $msg";
		3933
		3934	my @bt = fork_call {
		3935	@addr = map { sprintf "%x", $_ } @addr;
		3936	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3937	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3938	or die "addr2line: $!";
		3939
		3940	my @funcs;
		3941	my @res = <$fh>;
		3942	chomp for @res;
		3943	while (@res) {
		3944	my ($func, $line) = splice @res, 0, 2, ();
		3945	push @funcs, "[$func] $line";
		3946	}
		3947
		3948	@funcs
		3949	};
		3950
		3951	LOG llevInfo, "[ABT] $perl_bt\n";
		3952	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3953	LOG llevInfo, "[ABT] $_\n" for @bt;
		3954	--$_log_backtrace;
		3955	};
		3956	} else {
		3957	LOG llevInfo, "[ABT] $msg\n";
		3958	LOG llevInfo, "[ABT] [suppressed]\n";
		3959	}
2925	}	3960	}
2926		3961
2927	# load additional modules	3962	# load additional modules
2928	use cf::pod;	3963	require "cf/$_.pm" for @EXTRA_MODULES;
2929		3964
2930	END { cf::emergency_save }	3965	END { cf::emergency_save }
2931		3966
2932	1	3967	1
2933		3968

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