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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.257 by root, Sat Apr 21 17:34:24 2007 UTC vs.
Revision 1.478 by root, Thu Sep 17 01:57:31 2009 UTC

		1	#
		2	# This file is part of Deliantra, the Roguelike Realtime MMORPG.
		3	#
		4	# Copyright (©) 2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
		5	#
		6	# Deliantra is free software: you can redistribute it and/or modify
		7	# it under the terms of the GNU General Public License as published by
		8	# the Free Software Foundation, either version 3 of the License, or
		9	# (at your option) any later version.
		10	#
		11	# This program is distributed in the hope that it will be useful,
		12	# but WITHOUT ANY WARRANTY; without even the implied warranty of
		13	# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		14	# GNU General Public License for more details.
		15	#
		16	# You should have received a copy of the GNU General Public License
		17	# along with this program. If not, see <http://www.gnu.org/licenses/>.
		18	#
		19	# The authors can be reached via e-mail to <support@deliantra.net>
		20	#
		21
1	package cf;	22	package cf;
2		23
		24	use 5.10.0;
3	use utf8;	25	use utf8;
4	use strict;	26	use strict qw(vars subs);
5		27
6	use Symbol;	28	use Symbol;
7	use List::Util;	29	use List::Util;
8	use Socket;	30	use Socket;
9	use Storable;	31	use EV;
10	use Event;
11	use Opcode;	32	use Opcode;
12	use Safe;	33	use Safe;
13	use Safe::Hole;	34	use Safe::Hole;
		35	use Storable ();
14		36
		37	use Guard ();
15	use Coro 3.61 ();	38	use Coro ();
16	use Coro::State;	39	use Coro::State;
17	use Coro::Handle;	40	use Coro::Handle;
		41	use Coro::EV;
18	use Coro::Event;	42	use Coro::AnyEvent;
19	use Coro::Timer;	43	use Coro::Timer;
20	use Coro::Signal;	44	use Coro::Signal;
21	use Coro::Semaphore;	45	use Coro::Semaphore;
		46	use Coro::SemaphoreSet;
		47	use Coro::AnyEvent;
22	use Coro::AIO;	48	use Coro::AIO;
		49	use Coro::BDB 1.6;
23	use Coro::Storable;	50	use Coro::Storable;
		51	use Coro::Util ();
24		52
		53	use JSON::XS 2.01 ();
25	use BDB ();	54	use BDB ();
26	use Data::Dumper;	55	use Data::Dumper;
27	use Digest::MD5;	56	use Digest::MD5;
28	use Fcntl;	57	use Fcntl;
29	use YAML::Syck ();	58	use YAML ();
30	use IO::AIO 2.32 ();	59	use IO::AIO ();
31	use Time::HiRes;	60	use Time::HiRes;
32	use Compress::LZF;	61	use Compress::LZF;
		62	use Digest::MD5 ();
		63
		64	AnyEvent::detect;
33		65
34	# configure various modules to our taste	66	# configure various modules to our taste
35	#	67	#
36	$Storable::canonical = 1; # reduce rsync transfers	68	$Storable::canonical = 1; # reduce rsync transfers
37	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator	69	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		70
		71	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
		72
		73	# make sure c-lzf reinitialises itself
		74	Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
38	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later	75	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
39		76
40	$Event::Eval = 1; # no idea why this is required, but it is	77	# strictly for debugging
41		78	$SIG{QUIT} = sub { Carp::cluck "SIGQUIT" };
42	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
43	$YAML::Syck::ImplicitUnicode = 1;
44
45	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
46		79
47	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	80	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
48		81
49	our %COMMAND = ();	82	our %COMMAND = ();
50	our %COMMAND_TIME = ();	83	our %COMMAND_TIME = ();
51		84
52	our @EXTS = (); # list of extension package names	85	our @EXTS = (); # list of extension package names
53	our %EXTCMD = ();	86	our %EXTCMD = ();
		87	our %EXTICMD = ();
54	our %EXT_CORO = (); # coroutines bound to extensions	88	our %EXT_CORO = (); # coroutines bound to extensions
55	our %EXT_MAP = (); # pluggable maps	89	our %EXT_MAP = (); # pluggable maps
56		90
57	our $RELOAD; # number of reloads so far	91	our $RELOAD; # number of reloads so far, non-zero while in reload
58	our @EVENT;	92	our @EVENT;
59		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	$Coro::State::WARNHOOK = sub {
160	*CORE::GLOBAL::warn = sub {
161	my $msg = join "", @_;	228	my $msg = join "", @_;
162		229
163	$msg .= "\n"	230	$msg .= "\n"
164	unless $msg =~ /\n$/;	231	unless $msg =~ /\n$/;
165		232
166	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;	233	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
167		234
168	utf8::encode $msg;
169	LOG llevError, $msg;	235	LOG llevError, $msg;
170	};	236	};
171	}	237
		238	$Coro::State::DIEHOOK = sub {
		239	return unless $^S eq 0; # "eq", not "=="
		240
		241	warn Carp::longmess $_[0];
		242
		243	if ($Coro::current == $Coro::main) {#d#
		244	warn "DIEHOOK called in main context, Coro bug?\n";#d#
		245	return;#d#
		246	}#d#
		247
		248	# kill coroutine otherwise
		249	Coro::terminate
		250	};
172		251
173	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	252	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
174	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	253	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
175	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	254	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
176	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	255	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
177	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	256	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		257	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
178	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	258	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
179		259
180	# we bless all objects into (empty) derived classes to force a method lookup	260	# we bless all objects into (empty) derived classes to force a method lookup
181	# within the Safe compartment.	261	# within the Safe compartment.
182	for my $pkg (qw(	262	for my $pkg (qw(
183	cf::global cf::attachable	263	cf::global cf::attachable
184	cf::object cf::object::player	264	cf::object cf::object::player
185	cf::client cf::player	265	cf::client cf::player
186	cf::arch cf::living	266	cf::arch cf::living
		267	cf::map cf::mapspace
187	cf::map cf::party cf::region	268	cf::party cf::region
188	)) {	269	)) {
189	no strict 'refs';
190	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	270	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
191	}	271	}
192		272
193	$Event::DIED = sub {	273	$EV::DIED = sub {
194	warn "error in event callback: @_";	274	warn "error in event callback: @_";
195	};	275	};
		276
		277	#############################################################################
196		278
197	=head2 UTILITY FUNCTIONS	279	=head2 UTILITY FUNCTIONS
198		280
199	=over 4	281	=over 4
200		282
…		…
219	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	301	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
220	$d	302	$d
221	} || "[unable to dump $_[0]: '$@']";	303	} || "[unable to dump $_[0]: '$@']";
222	}	304	}
223		305
224	use JSON::XS qw(to_json from_json); # TODO# replace by JSON::PC once working
225
226	=item $ref = cf::from_json $json	306	=item $ref = cf::decode_json $json
227		307
228	Converts a JSON string into the corresponding perl data structure.	308	Converts a JSON string into the corresponding perl data structure.
229		309
230	=item $json = cf::to_json $ref	310	=item $json = cf::encode_json $ref
231		311
232	Converts a perl data structure into its JSON representation.	312	Converts a perl data structure into its JSON representation.
233		313
		314	=cut
		315
		316	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
		317
		318	sub encode_json($) { $json_coder->encode ($_[0]) }
		319	sub decode_json($) { $json_coder->decode ($_[0]) }
		320
		321	=item cf::post_init { BLOCK }
		322
		323	Execute the given codeblock, I<after> all extensions have been (re-)loaded,
		324	but I<before> the server starts ticking again.
		325
		326	The cdoeblock will have a single boolean argument to indicate whether this
		327	is a reload or not.
		328
		329	=cut
		330
		331	sub post_init(&) {
		332	push @POST_INIT, shift;
		333	}
		334
234	=item cf::lock_wait $string	335	=item cf::lock_wait $string
235		336
236	Wait until the given lock is available. See cf::lock_acquire.	337	Wait until the given lock is available. See cf::lock_acquire.
237		338
238	=item my $lock = cf::lock_acquire $string	339	=item my $lock = cf::lock_acquire $string
239		340
240	Wait until the given lock is available and then acquires it and returns	341	Wait until the given lock is available and then acquires it and returns
241	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	342	a L<Guard> object. If the guard object gets destroyed (goes out of scope,
242	for example when the coroutine gets canceled), the lock is automatically	343	for example when the coroutine gets canceled), the lock is automatically
243	returned.	344	returned.
244		345
		346	Locks are *not* recursive, locking from the same coro twice results in a
		347	deadlocked coro.
		348
245	Lock names should begin with a unique identifier (for example, cf::map::find	349	Lock names should begin with a unique identifier (for example, cf::map::find
246	uses map_find and cf::map::load uses map_load).	350	uses map_find and cf::map::load uses map_load).
247		351
248	=item $locked = cf::lock_active $string	352	=item $locked = cf::lock_active $string
249		353
250	Return true if the lock is currently active, i.e. somebody has locked it.	354	Return true if the lock is currently active, i.e. somebody has locked it.
251		355
252	=cut	356	=cut
253		357
254	our %LOCK;	358	our $LOCKS = new Coro::SemaphoreSet;
255		359
256	sub lock_wait($) {	360	sub lock_wait($) {
257	my ($key) = @_;	361	$LOCKS->wait ($_[0]);
258
259	# wait for lock, if any
260	while ($LOCK{$key}) {
261	push @{ $LOCK{$key} }, $Coro::current;
262	Coro::schedule;
263	}
264	}	362	}
265		363
266	sub lock_acquire($) {	364	sub lock_acquire($) {
267	my ($key) = @_;	365	$LOCKS->guard ($_[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	}	366	}
279		367
280	sub lock_active($) {	368	sub lock_active($) {
281	my ($key) = @_;	369	$LOCKS->count ($_[0]) < 1
282
283	! ! $LOCK{$key}
284	}	370	}
285		371
286	sub freeze_mainloop {	372	sub freeze_mainloop {
287	return unless $TICK_WATCHER->is_active;	373	tick_inhibit_inc;
288		374
289	my $guard = Coro::guard {	375	&Guard::guard (\&tick_inhibit_dec);
290	$TICK_WATCHER->start;	376	}
		377
		378	=item cf::periodic $interval, $cb
		379
		380	Like EV::periodic, but randomly selects a starting point so that the actions
		381	get spread over timer.
		382
		383	=cut
		384
		385	sub periodic($$) {
		386	my ($interval, $cb) = @_;
		387
		388	my $start = rand List::Util::min 180, $interval;
		389
		390	EV::periodic $start, $interval, 0, $cb
		391	}
		392
		393	=item cf::get_slot $time[, $priority[, $name]]
		394
		395	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		396	This call blocks and returns only when you have at least C<$time> seconds
		397	of cpu time till the next tick. The slot is only valid till the next cede.
		398
		399	The optional C<$name> can be used to identify the job to run. It might be
		400	used for statistical purposes and should identify the same time-class.
		401
		402	Useful for short background jobs.
		403
		404	=cut
		405
		406	our @SLOT_QUEUE;
		407	our $SLOT_QUEUE;
		408
		409	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		410	$SLOT_QUEUE = Coro::async {
		411	$Coro::current->desc ("timeslot manager");
		412
		413	my $signal = new Coro::Signal;
		414
		415	while () {
		416	next_job:
		417	my $avail = cf::till_tick;
		418	if ($avail > 0.01) {
		419	for (0 .. $#SLOT_QUEUE) {
		420	if ($SLOT_QUEUE[$_][0] < $avail) {
		421	my $job = splice @SLOT_QUEUE, $_, 1, ();
		422	$job->[2]->send;
		423	Coro::cede;
		424	goto next_job;
		425	}
		426	}
		427	}
		428
		429	if (@SLOT_QUEUE) {
		430	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		431	push @cf::WAIT_FOR_TICK, $signal;
		432	$signal->wait;
		433	} else {
		434	Coro::schedule;
		435	}
291	};	436	}
292	$TICK_WATCHER->stop;	437	};
293	$guard	438
		439	sub get_slot($;$$) {
		440	return if tick_inhibit || $Coro::current == $Coro::main;
		441
		442	my ($time, $pri, $name) = @_;
		443
		444	$time = $TICK * .6 if $time > $TICK * .6;
		445	my $sig = new Coro::Signal;
		446
		447	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		448	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		449	$SLOT_QUEUE->ready;
		450	$sig->wait;
294	}	451	}
295		452
296	=item cf::async { BLOCK }	453	=item cf::async { BLOCK }
297		454
298	Currently the same as Coro::async_pool, meaning you cannot use	455	Currently the same as Coro::async_pool, meaning you cannot use
…		…
303		460
304	BEGIN { *async = \&Coro::async_pool }	461	BEGIN { *async = \&Coro::async_pool }
305		462
306	=item cf::sync_job { BLOCK }	463	=item cf::sync_job { BLOCK }
307		464
308	The design of crossfire+ requires that the main coro ($Coro::main) is	465	The design of Deliantra requires that the main coroutine ($Coro::main)
309	always able to handle events or runnable, as crossfire+ is only partly	466	is always able to handle events or runnable, as Deliantra is only
310	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	467	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		468	acceptable.
311		469
312	If it must be done, put the blocking parts into C<sync_job>. This will run	470	If it must be done, put the blocking parts into C<sync_job>. This will run
313	the given BLOCK in another coroutine while waiting for the result. The	471	the given BLOCK in another coroutine while waiting for the result. The
314	server will be frozen during this time, so the block should either finish	472	server will be frozen during this time, so the block should either finish
315	fast or be very important.	473	fast or be very important.
…		…
318		476
319	sub sync_job(&) {	477	sub sync_job(&) {
320	my ($job) = @_;	478	my ($job) = @_;
321		479
322	if ($Coro::current == $Coro::main) {	480	if ($Coro::current == $Coro::main) {
		481	my $time = EV::time;
		482
323	# this is the main coro, too bad, we have to block	483	# this is the main coro, too bad, we have to block
324	# till the operation succeeds, freezing the server :/	484	# till the operation succeeds, freezing the server :/
325		485
326	# TODO: use suspend/resume instead	486	LOG llevError, Carp::longmess "sync job";#d#
327	# (but this is cancel-safe)	487
328	my $freeze_guard = freeze_mainloop;	488	my $freeze_guard = freeze_mainloop;
329		489
330	my $busy = 1;	490	my $busy = 1;
331	my @res;	491	my @res;
332		492
333	(async {	493	(async {
		494	$Coro::current->desc ("sync job coro");
334	@res = eval { $job->() };	495	@res = eval { $job->() };
335	warn $@ if $@;	496	warn $@ if $@;
336	undef $busy;	497	undef $busy;
337	})->prio (Coro::PRIO_MAX);	498	})->prio (Coro::PRIO_MAX);
338		499
339	while ($busy) {	500	while ($busy) {
340	Coro::cede or Event::one_event;	501	if (Coro::nready) {
		502	Coro::cede_notself;
		503	} else {
		504	EV::loop EV::LOOP_ONESHOT;
341	}	505	}
		506	}
		507
		508	my $time = EV::time - $time;
		509
		510	$TICK_START += $time; # do not account sync jobs to server load
342		511
343	wantarray ? @res : $res[0]	512	wantarray ? @res : $res[0]
344	} else {	513	} else {
345	# we are in another coroutine, how wonderful, everything just works	514	# we are in another coroutine, how wonderful, everything just works
346		515
…		…
366	$EXT_CORO{$coro+0} = $coro;	535	$EXT_CORO{$coro+0} = $coro;
367		536
368	$coro	537	$coro
369	}	538	}
370		539
371	sub write_runtime {	540	=item fork_call { }, $args
372	my $guard = cf::lock_acquire "write_runtime";
373		541
374	my $runtime = "$LOCALDIR/runtime";	542	Executes the given code block with the given arguments in a seperate
		543	process, returning the results. Everything must be serialisable with
		544	Coro::Storable. May, of course, block. Note that the executed sub may
		545	never block itself or use any form of event handling.
375		546
376	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	547	=cut
377	or return;
378		548
379	my $value = $cf::RUNTIME + 90 + 10;	549	sub fork_call(&@) {
380	# 10 is the runtime save interval, for a monotonic clock	550	my ($cb, @args) = @_;
381	# 60 allows for the watchdog to kill the server.
382		551
383	(aio_write $fh, 0, (length $value), $value, 0) <= 0	552	# we seemingly have to make a local copy of the whole thing,
384	and return;	553	# otherwise perl prematurely frees the stuff :/
		554	# TODO: investigate and fix (likely this will be rather laborious)
385		555
386	# always fsync - this file is important	556	my @res = Coro::Util::fork_eval {
387	aio_fsync $fh	557	reset_signals;
388	and return;	558	&$cb
		559	}, @args;
389		560
390	close $fh	561	wantarray ? @res : $res[-1]
391	or return;	562	}
392		563
393	aio_rename "$runtime~", $runtime	564	=item $coin = coin_from_name $name
394	and return;
395		565
		566	=cut
		567
		568	our %coin_alias = (
		569	"silver" => "silvercoin",
		570	"silvercoin" => "silvercoin",
		571	"silvercoins" => "silvercoin",
		572	"gold" => "goldcoin",
		573	"goldcoin" => "goldcoin",
		574	"goldcoins" => "goldcoin",
		575	"platinum" => "platinacoin",
		576	"platinumcoin" => "platinacoin",
		577	"platinumcoins" => "platinacoin",
		578	"platina" => "platinacoin",
		579	"platinacoin" => "platinacoin",
		580	"platinacoins" => "platinacoin",
		581	"royalty" => "royalty",
		582	"royalties" => "royalty",
		583	);
		584
		585	sub coin_from_name($) {
		586	$coin_alias{$_[0]}
		587	? cf::arch::find $coin_alias{$_[0]}
		588	: undef
		589	}
		590
		591	=item $value = cf::db_get $family => $key
		592
		593	Returns a single value from the environment database.
		594
		595	=item cf::db_put $family => $key => $value
		596
		597	Stores the given C<$value> in the family. It can currently store binary
		598	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		599
		600	=item $db = cf::db_table "name"
		601
		602	Create and/or open a new database table. The string must not be "db" and must be unique
		603	within each server.
		604
		605	=cut
		606
		607	sub db_table($) {
		608	my ($name) = @_;
		609	my $db = BDB::db_create $DB_ENV;
		610
		611	eval {
		612	$db->set_flags (BDB::CHKSUM);
		613
		614	utf8::encode $name;
		615	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		616	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		617	cf::cleanup "db_open(db): $!" if $!;
		618	};
		619	cf::cleanup "db_open(db): $@" if $@;
		620
		621	$db
		622	}
		623
		624	our $DB;
		625
		626	sub db_init {
		627	cf::sync_job {
		628	$DB ||= db_table "db";
		629	};
		630	}
		631
		632	sub db_get($$) {
		633	my $key = "$_[0]/$_[1]";
		634
		635	cf::sync_job {
		636	BDB::db_get $DB, undef, $key, my $data;
		637
		638	$! ? ()
		639	: $data
396	1	640	}
		641	}
		642
		643	sub db_put($$$) {
		644	BDB::dbreq_pri 4;
		645	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		646	}
		647
		648	=item cf::cache $id => [$paths...], $processversion => $process
		649
		650	Generic caching function that returns the value of the resource $id,
		651	caching and regenerating as required.
		652
		653	This function can block.
		654
		655	=cut
		656
		657	sub cache {
		658	my ($id, $src, $processversion, $process) = @_;
		659
		660	my $meta =
		661	join "\x00",
		662	$processversion,
		663	map {
		664	aio_stat $_
		665	and Carp::croak "$_: $!";
		666
		667	($_, (stat _)[7,9])
		668	} @$src;
		669
		670	my $dbmeta = db_get cache => "$id/meta";
		671	if ($dbmeta ne $meta) {
		672	# changed, we may need to process
		673
		674	my @data;
		675	my $md5;
		676
		677	for (0 .. $#$src) {
		678	0 <= aio_load $src->[$_], $data[$_]
		679	or Carp::croak "$src->[$_]: $!";
		680	}
		681
		682	# if processing is expensive, check
		683	# checksum first
		684	if (1) {
		685	$md5 =
		686	join "\x00",
		687	$processversion,
		688	map {
		689	cf::cede_to_tick;
		690	($src->[$_], Digest::MD5::md5_hex $data[$_])
		691	} 0.. $#$src;
		692
		693
		694	my $dbmd5 = db_get cache => "$id/md5";
		695	if ($dbmd5 eq $md5) {
		696	db_put cache => "$id/meta", $meta;
		697
		698	return db_get cache => "$id/data";
		699	}
		700	}
		701
		702	my $t1 = Time::HiRes::time;
		703	my $data = $process->(\@data);
		704	my $t2 = Time::HiRes::time;
		705
		706	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		707
		708	db_put cache => "$id/data", $data;
		709	db_put cache => "$id/md5" , $md5;
		710	db_put cache => "$id/meta", $meta;
		711
		712	return $data;
		713	}
		714
		715	db_get cache => "$id/data"
397	}	716	}
398		717
399	=item cf::datalog type => key => value, ...	718	=item cf::datalog type => key => value, ...
400		719
401	Log a datalog packet of the given type with the given key-value pairs.	720	Log a datalog packet of the given type with the given key-value pairs.
…		…
413		732
414	#############################################################################	733	#############################################################################
415		734
416	=head2 ATTACHABLE OBJECTS	735	=head2 ATTACHABLE OBJECTS
417		736
418	Many objects in crossfire are so-called attachable objects. That means you can	737	Many objects in deliantra are so-called attachable objects. That means you can
419	attach callbacks/event handlers (a collection of which is called an "attachment")	738	attach callbacks/event handlers (a collection of which is called an "attachment")
420	to it. All such attachable objects support the following methods.	739	to it. All such attachable objects support the following methods.
421		740
422	In the following description, CLASS can be any of C<global>, C<object>	741	In the following description, CLASS can be any of C<global>, C<object>
423	C<player>, C<client> or C<map> (i.e. the attachable objects in	742	C<player>, C<client> or C<map> (i.e. the attachable objects in
424	crossfire+).	743	Deliantra).
425		744
426	=over 4	745	=over 4
427		746
428	=item $attachable->attach ($attachment, key => $value...)	747	=item $attachable->attach ($attachment, key => $value...)
429		748
…		…
473	=item cf::CLASS::attachment $name, ...	792	=item cf::CLASS::attachment $name, ...
474		793
475	Register an attachment by C<$name> through which attachable objects of the	794	Register an attachment by C<$name> through which attachable objects of the
476	given CLASS can refer to this attachment.	795	given CLASS can refer to this attachment.
477		796
478	Some classes such as crossfire maps and objects can specify attachments	797	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.	798	that are attached at load/instantiate time, thus the need for a name.
480		799
481	These calls expect any number of the following handler/hook descriptions:	800	These calls expect any number of the following handler/hook descriptions:
482		801
483	=over 4	802	=over 4
…		…
592	$registry = $CB_TYPE[$object_type] ||= [];	911	$registry = $CB_TYPE[$object_type] ||= [];
593		912
594	} elsif ($type eq "subtype") {	913	} elsif ($type eq "subtype") {
595	defined $object_type or Carp::croak "subtype specified without type";	914	defined $object_type or Carp::croak "subtype specified without type";
596	my $object_subtype = shift @arg;	915	my $object_subtype = shift @arg;
597	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	916	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
598		917
599	} elsif ($type eq "package") {	918	} elsif ($type eq "package") {
600	my $pkg = shift @arg;	919	my $pkg = shift @arg;
601		920
602	while (my ($name, $id) = each %cb_id) {	921	while (my ($name, $id) = each %cb_id) {
…		…
631	_attach $registry, $klass, @attach;	950	_attach $registry, $klass, @attach;
632	}	951	}
633		952
634	$obj->{$name} = \%arg;	953	$obj->{$name} = \%arg;
635	} else {	954	} else {
636	warn "object uses attachment '$name' that is not available, postponing.\n";	955	warn "object uses attachment '$name' which is not available, postponing.\n";
637	}	956	}
638		957
639	$obj->{_attachment}{$name} = undef;	958	$obj->{_attachment}{$name} = undef;
640	}	959	}
641		960
…		…
643	if (ref $_[0]) {	962	if (ref $_[0]) {
644	_object_attach @_;	963	_object_attach @_;
645	} else {	964	} else {
646	_attach shift->_attach_registry, @_;	965	_attach shift->_attach_registry, @_;
647	}	966	}
		967	_recalc_want;
648	};	968	};
649		969
650	# all those should be optimised	970	# all those should be optimised
651	sub cf::attachable::detach {	971	sub cf::attachable::detach {
652	my ($obj, $name) = @_;	972	my ($obj, $name) = @_;
…		…
655	delete $obj->{_attachment}{$name};	975	delete $obj->{_attachment}{$name};
656	reattach ($obj);	976	reattach ($obj);
657	} else {	977	} else {
658	Carp::croak "cannot, currently, detach class attachments";	978	Carp::croak "cannot, currently, detach class attachments";
659	}	979	}
		980	_recalc_want;
660	};	981	};
661		982
662	sub cf::attachable::attached {	983	sub cf::attachable::attached {
663	my ($obj, $name) = @_;	984	my ($obj, $name) = @_;
664		985
…		…
679	";	1000	";
680	die if $@;	1001	die if $@;
681	}	1002	}
682		1003
683	our $override;	1004	our $override;
684	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	1005	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
685		1006
686	sub override {	1007	sub override {
687	$override = 1;	1008	$override = 1;
688	@invoke_results = ();	1009	@INVOKE_RESULTS = (@_);
689	}	1010	}
690		1011
691	sub do_invoke {	1012	sub do_invoke {
692	my $event = shift;	1013	my $event = shift;
693	my $callbacks = shift;	1014	my $callbacks = shift;
694		1015
695	@invoke_results = ();	1016	@INVOKE_RESULTS = ();
696		1017
697	local $override;	1018	local $override;
698		1019
699	for (@$callbacks) {	1020	for (@$callbacks) {
700	eval { &{$_->[1]} };	1021	eval { &{$_->[1]} };
…		…
709	}	1030	}
710		1031
711	0	1032	0
712	}	1033	}
713		1034
714	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	1035	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
715		1036
716	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	1037	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
717		1038
718	Generate an object-specific event with the given arguments.	1039	Generate an object-specific event with the given arguments.
719		1040
720	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	1041	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
721	removed in future versions), and there is no public API to access override	1042	removed in future versions), and there is no public API to access override
722	results (if you must, access C<@cf::invoke_results> directly).	1043	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
723		1044
724	=back	1045	=back
725		1046
726	=cut	1047	=cut
727		1048
728	#############################################################################	1049	#############################################################################
729	# object support	1050	# object support
		1051
		1052	sub _object_equal($$);
		1053	sub _object_equal($$) {
		1054	my ($a, $b) = @_;
		1055
		1056	return 0 unless (ref $a) eq (ref $b);
		1057
		1058	if ("HASH" eq ref $a) {
		1059	my @ka = keys %$a;
		1060	my @kb = keys %$b;
		1061
		1062	return 0 if @ka != @kb;
		1063
		1064	for (0 .. $#ka) {
		1065	return 0 unless $ka[$_] eq $kb[$_];
		1066	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1067	}
		1068
		1069	} elsif ("ARRAY" eq ref $a) {
		1070
		1071	return 0 if @$a != @$b;
		1072
		1073	for (0 .. $#$a) {
		1074	return 0 unless _object_equal $a->[$_], $b->[$_];
		1075	}
		1076
		1077	} elsif ($a ne $b) {
		1078	return 0;
		1079	}
		1080
		1081	1
		1082	}
		1083
		1084	our $SLOW_MERGES;#d#
		1085	sub _can_merge {
		1086	my ($ob1, $ob2) = @_;
		1087
		1088	++$SLOW_MERGES;#d#
		1089
		1090	# we do the slow way here
		1091	return _object_equal $ob1, $ob2
		1092	}
730		1093
731	sub reattach {	1094	sub reattach {
732	# basically do the same as instantiate, without calling instantiate	1095	# basically do the same as instantiate, without calling instantiate
733	my ($obj) = @_;	1096	my ($obj) = @_;
734		1097
		1098	# no longer needed after getting rid of delete_package?
735	bless $obj, ref $obj; # re-bless in case extensions have been reloaded	1099	#bless $obj, ref $obj; # re-bless in case extensions have been reloaded
736		1100
737	my $registry = $obj->registry;	1101	my $registry = $obj->registry;
738		1102
739	@$registry = ();	1103	@$registry = ();
740		1104
…		…
755	cf::attachable->attach (	1119	cf::attachable->attach (
756	prio => -1000000,	1120	prio => -1000000,
757	on_instantiate => sub {	1121	on_instantiate => sub {
758	my ($obj, $data) = @_;	1122	my ($obj, $data) = @_;
759		1123
760	$data = from_json $data;	1124	$data = decode_json $data;
761		1125
762	for (@$data) {	1126	for (@$data) {
763	my ($name, $args) = @$_;	1127	my ($name, $args) = @$_;
764		1128
765	$obj->attach ($name, %{$args || {} });	1129	$obj->attach ($name, %{$args || {} });
…		…
781	sub object_freezer_save {	1145	sub object_freezer_save {
782	my ($filename, $rdata, $objs) = @_;	1146	my ($filename, $rdata, $objs) = @_;
783		1147
784	sync_job {	1148	sync_job {
785	if (length $$rdata) {	1149	if (length $$rdata) {
		1150	utf8::decode (my $decname = $filename);
786	warn sprintf "saving %s (%d,%d)\n",	1151	warn sprintf "saving %s (%d,%d)\n",
787	$filename, length $$rdata, scalar @$objs;	1152	$decname, length $$rdata, scalar @$objs;
788		1153
789	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1154	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
790	chmod SAVE_MODE, $fh;	1155	aio_chmod $fh, SAVE_MODE;
791	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1156	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
792	aio_fsync $fh if $cf::USE_FSYNC;	1157	if ($cf::USE_FSYNC) {
		1158	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1159	aio_fsync $fh;
		1160	}
793	close $fh;	1161	aio_close $fh;
794		1162
795	if (@$objs) {	1163	if (@$objs) {
796	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1164	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
797	chmod SAVE_MODE, $fh;	1165	aio_chmod $fh, SAVE_MODE;
798	my $data = Storable::nfreeze { version => 1, objs => $objs };	1166	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
799	aio_write $fh, 0, (length $data), $data, 0;	1167	aio_write $fh, 0, (length $data), $data, 0;
800	aio_fsync $fh if $cf::USE_FSYNC;	1168	if ($cf::USE_FSYNC) {
		1169	aio_sync_file_range $fh, 0, 0, IO::AIO::SYNC_FILE_RANGE_WAIT_BEFORE | IO::AIO::SYNC_FILE_RANGE_WRITE | IO::AIO::SYNC_FILE_RANGE_WAIT_AFTER;
		1170	aio_fsync $fh;
		1171	}
801	close $fh;	1172	aio_close $fh;
802	aio_rename "$filename.pst~", "$filename.pst";	1173	aio_rename "$filename.pst~", "$filename.pst";
803	}	1174	}
804	} else {	1175	} else {
805	aio_unlink "$filename.pst";	1176	aio_unlink "$filename.pst";
806	}	1177	}
807		1178
808	aio_rename "$filename~", $filename;	1179	aio_rename "$filename~", $filename;
		1180
		1181	$filename =~ s%/[^/]+$%%;
		1182	aio_pathsync $filename if $cf::USE_FSYNC;
809	} else {	1183	} else {
810	warn "FATAL: $filename~: $!\n";	1184	warn "unable to save objects: $filename~: $!\n";
811	}	1185	}
812	} else {	1186	} else {
813	aio_unlink $filename;	1187	aio_unlink $filename;
814	aio_unlink "$filename.pst";	1188	aio_unlink "$filename.pst";
815	}	1189	}
816	}	1190	};
817	}	1191	}
818		1192
819	sub object_freezer_as_string {	1193	sub object_freezer_as_string {
820	my ($rdata, $objs) = @_;	1194	my ($rdata, $objs) = @_;
821		1195
…		…
833	or return;	1207	or return;
834		1208
835	unless (aio_stat "$filename.pst") {	1209	unless (aio_stat "$filename.pst") {
836	(aio_load "$filename.pst", $av) >= 0	1210	(aio_load "$filename.pst", $av) >= 0
837	or return;	1211	or return;
		1212
838	$av = eval { (Storable::thaw $av)->{objs} };	1213	my $st = eval { Coro::Storable::thaw $av };
		1214	$av = $st->{objs};
839	}	1215	}
840		1216
		1217	utf8::decode (my $decname = $filename);
841	warn sprintf "loading %s (%d)\n",	1218	warn sprintf "loading %s (%d,%d)\n",
842	$filename, length $data, scalar @{$av || []};#d#	1219	$decname, length $data, scalar @{$av || []};
		1220
843	return ($data, $av);	1221	($data, $av)
844	}	1222	}
		1223
		1224	=head2 COMMAND CALLBACKS
		1225
		1226	=over 4
		1227
		1228	=cut
845		1229
846	#############################################################################	1230	#############################################################################
847	# command handling &c	1231	# command handling &c
848		1232
849	=item cf::register_command $name => \&callback($ob,$args);	1233	=item cf::register_command $name => \&callback($ob,$args);
…		…
862	push @{ $COMMAND{$name} }, [$caller, $cb];	1246	push @{ $COMMAND{$name} }, [$caller, $cb];
863	}	1247	}
864		1248
865	=item cf::register_extcmd $name => \&callback($pl,$packet);	1249	=item cf::register_extcmd $name => \&callback($pl,$packet);
866		1250
867	Register a callbackf ro execution when the client sends an extcmd packet.	1251	Register a callback for execution when the client sends an (synchronous)
		1252	extcmd packet. Ext commands will be processed in the order they are
		1253	received by the server, like other user commands. The first argument is
		1254	the logged-in player. Ext commands can only be processed after a player
		1255	has logged in successfully.
868		1256
869	If the callback returns something, it is sent back as if reply was being	1257	If the callback returns something, it is sent back as if reply was being
870	called.	1258	called.
871		1259
		1260	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1261
		1262	Register a callback for execution when the client sends an (asynchronous)
		1263	exticmd packet. Exti commands are processed by the server as soon as they
		1264	are received, i.e. out of order w.r.t. other commands. The first argument
		1265	is a client socket. Exti commands can be received anytime, even before
		1266	log-in.
		1267
		1268	If the callback returns something, it is sent back as if reply was being
		1269	called.
		1270
872	=cut	1271	=cut
873		1272
874	sub register_extcmd {	1273	sub register_extcmd {
875	my ($name, $cb) = @_;	1274	my ($name, $cb) = @_;
876		1275
877	$EXTCMD{$name} = $cb;	1276	$EXTCMD{$name} = $cb;
878	}	1277	}
		1278
		1279	sub register_exticmd {
		1280	my ($name, $cb) = @_;
		1281
		1282	$EXTICMD{$name} = $cb;
		1283	}
		1284
		1285	use File::Glob ();
879		1286
880	cf::player->attach (	1287	cf::player->attach (
881	on_command => sub {	1288	on_command => sub {
882	my ($pl, $name, $params) = @_;	1289	my ($pl, $name, $params) = @_;
883		1290
…		…
891	cf::override;	1298	cf::override;
892	},	1299	},
893	on_extcmd => sub {	1300	on_extcmd => sub {
894	my ($pl, $buf) = @_;	1301	my ($pl, $buf) = @_;
895		1302
896	my $msg = eval { from_json $buf };	1303	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
897		1304
898	if (ref $msg) {	1305	if (ref $msg) {
		1306	my ($type, $reply, @payload) =
		1307	"ARRAY" eq ref $msg
		1308	? @$msg
		1309	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1310
		1311	my @reply;
		1312
899	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1313	if (my $cb = $EXTCMD{$type}) {
900	if (my %reply = $cb->($pl, $msg)) {	1314	@reply = $cb->($pl, @payload);
901	$pl->ext_reply ($msg->{msgid}, %reply);
902	}
903	}	1315	}
		1316
		1317	$pl->ext_reply ($reply, @reply)
		1318	if $reply;
		1319
904	} else {	1320	} else {
905	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1321	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
906	}	1322	}
907		1323
908	cf::override;	1324	cf::override;
909	},	1325	},
910	);	1326	);
911		1327
		1328	# "readahead" all extensions
912	sub load_extension {	1329	sub cache_extensions {
913	my ($path) = @_;	1330	my $grp = IO::AIO::aio_group;
914		1331
915	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1332	add $grp IO::AIO::aio_readdirx $LIBDIR, IO::AIO::READDIR_STAT_ORDER, sub {
916	my $base = $1;	1333	for (grep /\.ext$/, @{$_[0]}) {
917	my $pkg = $1;	1334	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	}	1335	}
940	die $@;
941	}	1336	};
942		1337
943	push @EXTS, $pkg;	1338	$grp
944	}	1339	}
945		1340
946	sub load_extensions {	1341	sub load_extensions {
		1342	cf::sync_job {
		1343	my %todo;
		1344
947	for my $ext (<$LIBDIR/*.ext>) {	1345	for my $path (<$LIBDIR/*.ext>) {
948	next unless -r $ext;	1346	next unless -r $path;
949	eval {	1347
950	load_extension $ext;	1348	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1349	my $base = $1;
		1350	my $pkg = $1;
		1351	$pkg =~ s/[^[:word:]]/_/g;
		1352	$pkg = "ext::$pkg";
		1353
		1354	open my $fh, "<:utf8", $path
		1355	or die "$path: $!";
		1356
		1357	my $source = do { local $/; <$fh> };
		1358
		1359	my %ext = (
		1360	path => $path,
		1361	base => $base,
		1362	pkg => $pkg,
		1363	);
		1364
		1365	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1366	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1367
		1368	$ext{source} =
		1369	"package $pkg; use 5.10.0; use strict 'vars', 'subs'; use utf8;\n"
		1370	. "#line 1 \"$path\"\n{\n"
		1371	. $source
		1372	. "\n};\n1";
		1373
		1374	$todo{$base} = \%ext;
		1375	}
		1376
		1377	my %done;
		1378	while (%todo) {
		1379	my $progress;
		1380
		1381	while (my ($k, $v) = each %todo) {
		1382	for (split /,\s*/, $v->{meta}{depends}) {
		1383	goto skip
		1384	unless exists $done{$_};
		1385	}
		1386
		1387	warn "... loading '$k' into '$v->{pkg}'\n";
		1388
		1389	unless (eval $v->{source}) {
		1390	my $msg = $@ ? "$v->{path}: $@\n"
		1391	: "$v->{base}: extension inactive.\n";
		1392
		1393	if (exists $v->{meta}{mandatory}) {
		1394	warn $msg;
		1395	cf::cleanup "mandatory extension failed to load, exiting.";
		1396	}
		1397
		1398	warn $msg;
		1399	}
		1400
		1401	$done{$k} = delete $todo{$k};
		1402	push @EXTS, $v->{pkg};
		1403	$progress = 1;
951	1	1404	}
952	} or warn "$ext not loaded: $@";	1405
		1406	skip:
		1407	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1408	unless $progress;
		1409	}
953	}	1410	};
954	}	1411	}
955		1412
956	#############################################################################	1413	#############################################################################
957		1414
		1415	=back
		1416
958	=head2 CORE EXTENSIONS	1417	=head2 CORE EXTENSIONS
959		1418
960	Functions and methods that extend core crossfire objects.	1419	Functions and methods that extend core deliantra objects.
961		1420
962	=cut	1421	=cut
963		1422
964	package cf::player;	1423	package cf::player;
965		1424
966	use Coro::AIO;	1425	use Coro::AIO;
967		1426
968	=head3 cf::player	1427	=head3 cf::player
969		1428
970	=over 4	1429	=over 4
		1430
		1431	=item cf::player::num_playing
		1432
		1433	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1434
		1435	=cut
		1436
		1437	sub num_playing {
		1438	scalar grep
		1439	$_->ob->map
		1440	&& !$_->hidden
		1441	&& !$_->ob->flag (cf::FLAG_WIZ),
		1442	cf::player::list
		1443	}
971		1444
972	=item cf::player::find $login	1445	=item cf::player::find $login
973		1446
974	Returns the given player object, loading it if necessary (might block).	1447	Returns the given player object, loading it if necessary (might block).
975		1448
…		…
994		1467
995	sub exists($) {	1468	sub exists($) {
996	my ($login) = @_;	1469	my ($login) = @_;
997		1470
998	$cf::PLAYER{$login}	1471	$cf::PLAYER{$login}
999	or cf::sync_job { !aio_stat path $login }	1472	or !aio_stat path $login
1000	}	1473	}
1001		1474
1002	sub find($) {	1475	sub find($) {
1003	return $cf::PLAYER{$_[0]} || do {	1476	return $cf::PLAYER{$_[0]} || do {
1004	my $login = $_[0];	1477	my $login = $_[0];
…		…
1011	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";	1484	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
1012	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";	1485	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
1013	aio_unlink +(playerdir $login) . "/$login.pl.pst";	1486	aio_unlink +(playerdir $login) . "/$login.pl.pst";
1014	aio_unlink +(playerdir $login) . "/$login.pl";	1487	aio_unlink +(playerdir $login) . "/$login.pl";
1015		1488
1016	my $pl = load_pl path $login	1489	my $f = new_from_file cf::object::thawer path $login
1017	or return;	1490	or return;
		1491
		1492	my $pl = cf::player::load_pl $f
		1493	or return;
		1494
		1495	local $cf::PLAYER_LOADING{$login} = $pl;
		1496	$f->resolve_delayed_derefs;
1018	$cf::PLAYER{$login} = $pl	1497	$cf::PLAYER{$login} = $pl
1019	}	1498	}
1020	}	1499	}
1021	}	1500	}
1022		1501
…		…
1031	return if $pl->{deny_save};	1510	return if $pl->{deny_save};
1032		1511
1033	aio_mkdir playerdir $pl, 0770;	1512	aio_mkdir playerdir $pl, 0770;
1034	$pl->{last_save} = $cf::RUNTIME;	1513	$pl->{last_save} = $cf::RUNTIME;
1035		1514
		1515	cf::get_slot 0.01;
		1516
1036	$pl->save_pl ($path);	1517	$pl->save_pl ($path);
1037	Coro::cede;	1518	cf::cede_to_tick;
1038	}	1519	}
1039		1520
1040	sub new($) {	1521	sub new($) {
1041	my ($login) = @_;	1522	my ($login) = @_;
1042		1523
…		…
1048	$cf::PLAYER{$login} = $self;	1529	$cf::PLAYER{$login} = $self;
1049		1530
1050	$self	1531	$self
1051	}	1532	}
1052		1533
		1534	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1535
		1536	=cut
		1537
		1538	sub send_msg {
		1539	my $ns = shift->ns
		1540	or return;
		1541	$ns->send_msg (@_);
		1542	}
		1543
1053	=item $pl->quit_character	1544	=item $pl->quit_character
1054		1545
1055	Nukes the player without looking back. If logged in, the connection will	1546	Nukes the player without looking back. If logged in, the connection will
1056	be destroyed. May block for a long time.	1547	be destroyed. May block for a long time.
1057		1548
…		…
1061	my ($pl) = @_;	1552	my ($pl) = @_;
1062		1553
1063	my $name = $pl->ob->name;	1554	my $name = $pl->ob->name;
1064		1555
1065	$pl->{deny_save} = 1;	1556	$pl->{deny_save} = 1;
1066	$pl->password ("*"); # this should lock out the player until we nuked the dir	1557	$pl->password ("*"); # this should lock out the player until we have nuked the dir
1067		1558
1068	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1559	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
1069	$pl->deactivate;	1560	$pl->deactivate;
		1561	my $killer = cf::arch::get "killer_quit"; $pl->killer ($killer); $killer->destroy;
		1562	$pl->ob->check_score;
1070	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1563	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1071	$pl->ns->destroy if $pl->ns;	1564	$pl->ns->destroy if $pl->ns;
1072		1565
1073	my $path = playerdir $pl;	1566	my $path = playerdir $pl;
1074	my $temp = "$path~$cf::RUNTIME~deleting~";	1567	my $temp = "$path~$cf::RUNTIME~deleting~";
…		…
1110	or return [];	1603	or return [];
1111		1604
1112	my @logins;	1605	my @logins;
1113		1606
1114	for my $login (@$dirs) {	1607	for my $login (@$dirs) {
		1608	my $path = path $login;
		1609
		1610	# a .pst is a dead give-away for a valid player
		1611	# if no pst file found, open and chekc for blocked users
		1612	if (aio_stat "$path.pst") {
1115	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1613	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1116	aio_read $fh, 0, 512, my $buf, 0 or next;	1614	aio_read $fh, 0, 512, my $buf, 0 or next;
1117	$buf !~ /^password -------------$/m or next; # official not-valid tag	1615	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1616	}
1118		1617
1119	utf8::decode $login;	1618	utf8::decode $login;
1120	push @logins, $login;	1619	push @logins, $login;
1121	}	1620	}
1122		1621
…		…
1149	}	1648	}
1150		1649
1151	\@paths	1650	\@paths
1152	}	1651	}
1153		1652
		1653	=item $protocol_xml = $player->expand_cfpod ($cfpod)
		1654
		1655	Expand deliantra pod fragments into protocol xml.
		1656
1154	=item $player->ext_reply ($msgid, %msg)	1657	=item $player->ext_reply ($msgid, @msg)
1155		1658
1156	Sends an ext reply to the player.	1659	Sends an ext reply to the player.
1157		1660
1158	=cut	1661	=cut
1159		1662
1160	sub ext_reply($$%) {	1663	sub ext_reply($$@) {
1161	my ($self, $id, %msg) = @_;	1664	my ($self, $id, @msg) = @_;
1162		1665
1163	$msg{msgid} = $id;	1666	$self->ns->ext_reply ($id, @msg)
1164
1165	$self->send ("ext " . cf::to_json \%msg);
1166	}	1667	}
1167		1668
1168	=item $player->ext_event ($type, %msg)	1669	=item $player->ext_msg ($type, @msg)
1169		1670
1170	Sends an ext event to the client.	1671	Sends an ext event to the client.
1171		1672
1172	=cut	1673	=cut
1173		1674
1174	sub ext_event($$%) {	1675	sub ext_msg($$@) {
1175	my ($self, $type, %msg) = @_;	1676	my ($self, $type, @msg) = @_;
1176		1677
1177	$self->ns->ext_event ($type, %msg);	1678	$self->ns->ext_msg ($type, @msg);
1178	}	1679	}
1179		1680
1180	=head3 cf::region	1681	=head3 cf::region
1181		1682
1182	=over 4	1683	=over 4
…		…
1185		1686
1186	package cf::region;	1687	package cf::region;
1187		1688
1188	=item cf::region::find_by_path $path	1689	=item cf::region::find_by_path $path
1189		1690
1190	Tries to decuce the probable region for a map knowing only its path.	1691	Tries to decuce the likely region for a map knowing only its path.
1191		1692
1192	=cut	1693	=cut
1193		1694
1194	sub find_by_path($) {	1695	sub find_by_path($) {
1195	my ($path) = @_;	1696	my ($path) = @_;
1196		1697
1197	my ($match, $specificity);	1698	my ($match, $specificity);
1198		1699
1199	for my $region (list) {	1700	for my $region (list) {
1200	if ($region->match && $path =~ $region->match) {	1701	if ($region->{match} && $path =~ $region->{match}) {
1201	($match, $specificity) = ($region, $region->specificity)	1702	($match, $specificity) = ($region, $region->specificity)
1202	if $region->specificity > $specificity;	1703	if $region->specificity > $specificity;
1203	}	1704	}
1204	}	1705	}
1205		1706
…		…
1226	our $MAX_RESET = 3600;	1727	our $MAX_RESET = 3600;
1227	our $DEFAULT_RESET = 3000;	1728	our $DEFAULT_RESET = 3000;
1228		1729
1229	sub generate_random_map {	1730	sub generate_random_map {
1230	my ($self, $rmp) = @_;	1731	my ($self, $rmp) = @_;
		1732
		1733	my $lock = cf::lock_acquire "generate_random_map"; # the random map generator is NOT reentrant ATM
		1734
1231	# mit "rum" bekleckern, nicht	1735	# mit "rum" bekleckern, nicht
1232	$self->_create_random_map (	1736	$self->_create_random_map (
1233	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1737	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1234	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1738	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1235	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1739	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1269	my ($self, $merge) = @_;	1773	my ($self, $merge) = @_;
1270		1774
1271	# we have to keep some variables in memory intact	1775	# we have to keep some variables in memory intact
1272	local $self->{path};	1776	local $self->{path};
1273	local $self->{load_path};	1777	local $self->{load_path};
1274	local $self->{deny_save};
1275	local $self->{deny_reset};
1276		1778
1277	$self->SUPER::thawer_merge ($merge);	1779	$self->SUPER::thawer_merge ($merge);
1278	}	1780	}
1279		1781
1280	sub normalise {	1782	sub normalise {
…		…
1327	$self->init; # pass $1 etc.	1829	$self->init; # pass $1 etc.
1328	return $self;	1830	return $self;
1329	}	1831	}
1330	}	1832	}
1331		1833
1332	Carp::carp "unable to resolve path '$path' (base '$base').";	1834	Carp::cluck "unable to resolve path '$path' (base '$base').";
1333	()	1835	()
1334	}	1836	}
1335		1837
1336	sub init {	1838	sub init {
1337	my ($self) = @_;	1839	my ($self) = @_;
…		…
1359		1861
1360	# the temporary/swap location	1862	# the temporary/swap location
1361	sub save_path {	1863	sub save_path {
1362	my ($self) = @_;	1864	my ($self) = @_;
1363		1865
1364	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1866	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1365	"$TMPDIR/$path.map"	1867	"$TMPDIR/$path.map"
1366	}	1868	}
1367		1869
1368	# the unique path, undef == no special unique path	1870	# the unique path, undef == no special unique path
1369	sub uniq_path {	1871	sub uniq_path {
1370	my ($self) = @_;	1872	my ($self) = @_;
1371		1873
1372	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1874	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1373	"$UNIQUEDIR/$path"	1875	"$UNIQUEDIR/$path"
1374	}	1876	}
1375		1877
1376	# and all this just because we cannot iterate over	1878	sub decay_objects {
1377	# all maps in C++...
1378	sub change_all_map_light {
1379	my ($change) = @_;	1879	my ($self) = @_;
1380		1880
1381	$_->change_map_light ($change)	1881	return if $self->{deny_reset};
1382	for grep $_->outdoor, values %cf::MAP;	1882
		1883	$self->do_decay_objects;
1383	}	1884	}
1384		1885
1385	sub unlink_save {	1886	sub unlink_save {
1386	my ($self) = @_;	1887	my ($self) = @_;
1387		1888
…		…
1392		1893
1393	sub load_header_from($) {	1894	sub load_header_from($) {
1394	my ($self, $path) = @_;	1895	my ($self, $path) = @_;
1395		1896
1396	utf8::encode $path;	1897	utf8::encode $path;
1397	#aio_open $path, O_RDONLY, 0	1898	my $f = new_from_file cf::object::thawer $path
1398	# or return;
1399
1400	$self->_load_header ($path)
1401	or return;	1899	or return;
		1900
		1901	$self->_load_header ($f)
		1902	or return;
		1903
		1904	local $MAP_LOADING{$self->{path}} = $self;
		1905	$f->resolve_delayed_derefs;
1402		1906
1403	$self->{load_path} = $path;	1907	$self->{load_path} = $path;
1404		1908
1405	1	1909	1
1406	}	1910	}
…		…
1445	$self->load_header_orig	1949	$self->load_header_orig
1446	or return;	1950	or return;
1447	$self->prepare_orig;	1951	$self->prepare_orig;
1448	}	1952	}
1449		1953
		1954	$self->{deny_reset} = 1
		1955	if $self->no_reset;
		1956
1450	$self->default_region (cf::region::find_by_path $self->{path})	1957	$self->default_region (cf::region::find_by_path $self->{path})
1451	unless $self->default_region;	1958	unless $self->default_region;
1452		1959
1453	1	1960	1
1454	}	1961	}
…		…
1457	sub find {	1964	sub find {
1458	my ($path, $origin) = @_;	1965	my ($path, $origin) = @_;
1459		1966
1460	$path = normalise $path, $origin && $origin->path;	1967	$path = normalise $path, $origin && $origin->path;
1461		1968
		1969	my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1462	cf::lock_wait "map_find:$path";	1970	my $guard2 = cf::lock_acquire "map_find:$path";
1463		1971
1464	$cf::MAP{$path} || do {	1972	$cf::MAP{$path} || do {
1465	my $guard = cf::lock_acquire "map_find:$path";
1466	my $map = new_from_path cf::map $path	1973	my $map = new_from_path cf::map $path
1467	or return;	1974	or return;
1468		1975
1469	$map->{last_save} = $cf::RUNTIME;	1976	$map->{last_save} = $cf::RUNTIME;
1470		1977
1471	$map->load_header	1978	$map->load_header
1472	or return;	1979	or return;
1473		1980
1474	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1981	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1475	# doing this can freeze the server in a sync job, obviously	1982	# doing this can freeze the server in a sync job, obviously
1476	#$cf::WAIT_FOR_TICK->wait;	1983	#$cf::WAIT_FOR_TICK->wait;
		1984	undef $guard2;
		1985	undef $guard1;
1477	$map->reset;	1986	$map->reset;
1478	undef $guard;
1479	return find $path;	1987	return find $path;
1480	}	1988	}
1481		1989
1482	$cf::MAP{$path} = $map	1990	$cf::MAP{$path} = $map
1483	}	1991	}
…		…
1492	local $self->{deny_reset} = 1; # loading can take a long time	2000	local $self->{deny_reset} = 1; # loading can take a long time
1493		2001
1494	my $path = $self->{path};	2002	my $path = $self->{path};
1495		2003
1496	{	2004	{
1497	my $guard = cf::lock_acquire "map_load:$path";	2005	my $guard = cf::lock_acquire "map_data:$path";
1498		2006
		2007	return unless $self->valid;
1499	return if $self->in_memory != cf::MAP_SWAPPED;	2008	return unless $self->in_memory == cf::MAP_SWAPPED;
1500		2009
1501	$self->in_memory (cf::MAP_LOADING);	2010	$self->in_memory (cf::MAP_LOADING);
1502		2011
1503	$self->alloc;	2012	$self->alloc;
1504		2013
1505	$self->pre_load;	2014	$self->pre_load;
1506	Coro::cede;	2015	cf::cede_to_tick;
1507		2016
		2017	my $f = new_from_file cf::object::thawer $self->{load_path};
		2018	$f->skip_block;
1508	$self->_load_objects ($self->{load_path}, 1)	2019	$self->_load_objects ($f)
1509	or return;	2020	or return;
1510		2021
1511	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2022	$self->post_load_original
1512	if delete $self->{load_original};	2023	if delete $self->{load_original};
1513		2024
1514	if (my $uniq = $self->uniq_path) {	2025	if (my $uniq = $self->uniq_path) {
1515	utf8::encode $uniq;	2026	utf8::encode $uniq;
1516	if (aio_open $uniq, O_RDONLY, 0) {	2027	unless (aio_stat $uniq) {
		2028	if (my $f = new_from_file cf::object::thawer $uniq) {
1517	$self->clear_unique_items;	2029	$self->clear_unique_items;
1518	$self->_load_objects ($uniq, 0);	2030	$self->_load_objects ($f);
		2031	$f->resolve_delayed_derefs;
		2032	}
1519	}	2033	}
1520	}	2034	}
1521		2035
1522	Coro::cede;	2036	$f->resolve_delayed_derefs;
		2037
		2038	cf::cede_to_tick;
1523	# now do the right thing for maps	2039	# now do the right thing for maps
1524	$self->link_multipart_objects;	2040	$self->link_multipart_objects;
1525	$self->difficulty ($self->estimate_difficulty)	2041	$self->difficulty ($self->estimate_difficulty)
1526	unless $self->difficulty;	2042	unless $self->difficulty;
1527	Coro::cede;	2043	cf::cede_to_tick;
1528		2044
1529	unless ($self->{deny_activate}) {	2045	unless ($self->{deny_activate}) {
1530	$self->decay_objects;	2046	$self->decay_objects;
1531	$self->fix_auto_apply;	2047	$self->fix_auto_apply;
1532	$self->update_buttons;	2048	$self->update_buttons;
1533	Coro::cede;	2049	cf::cede_to_tick;
1534	$self->set_darkness_map;
1535	Coro::cede;
1536	$self->activate;	2050	$self->activate;
1537	}	2051	}
1538		2052
		2053	$self->{last_save} = $cf::RUNTIME;
		2054	$self->last_access ($cf::RUNTIME);
		2055
1539	$self->in_memory (cf::MAP_IN_MEMORY);	2056	$self->in_memory (cf::MAP_ACTIVE);
1540	}	2057	}
1541		2058
1542	$self->post_load;	2059	$self->post_load;
1543	}	2060	}
1544		2061
…		…
1546	my ($self, $ob) = @_;	2063	my ($self, $ob) = @_;
1547		2064
1548	return find "~" . $ob->name . "/" . $self->{path}	2065	return find "~" . $ob->name . "/" . $self->{path}
1549	if $self->per_player;	2066	if $self->per_player;
1550		2067
		2068	# return find "?party/" . $ob->name . "/" . $self->{path}
		2069	# if $self->per_party;
		2070
1551	$self	2071	$self
1552	}	2072	}
1553		2073
1554	# find and load all maps in the 3x3 area around a map	2074	# find and load all maps in the 3x3 area around a map
1555	sub load_diag {	2075	sub load_neighbours {
1556	my ($map) = @_;	2076	my ($map) = @_;
1557		2077
1558	my @diag; # diagonal neighbours	2078	my @neigh; # diagonal neighbours
1559		2079
1560	for (0 .. 3) {	2080	for (0 .. 3) {
1561	my $neigh = $map->tile_path ($_)	2081	my $neigh = $map->tile_path ($_)
1562	or next;	2082	or next;
1563	$neigh = find $neigh, $map	2083	$neigh = find $neigh, $map
1564	or next;	2084	or next;
1565	$neigh->load;	2085	$neigh->load;
1566		2086
		2087	push @neigh,
1567	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2088	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1568	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2089	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1569	}	2090	}
1570		2091
1571	for (@diag) {	2092	for (grep defined $_->[0], @neigh) {
		2093	my ($path, $origin) = @$_;
1572	my $neigh = find @$_	2094	my $neigh = find $path, $origin
1573	or next;	2095	or next;
1574	$neigh->load;	2096	$neigh->load;
1575	}	2097	}
1576	}	2098	}
1577		2099
…		…
1582	}	2104	}
1583		2105
1584	sub do_load_sync {	2106	sub do_load_sync {
1585	my ($map) = @_;	2107	my ($map) = @_;
1586		2108
		2109	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2110	if $Coro::current == $Coro::main;
		2111
1587	cf::sync_job { $map->load };	2112	cf::sync_job { $map->load };
1588	}	2113	}
1589		2114
1590	our %MAP_PREFETCH;	2115	our %MAP_PREFETCH;
1591	our $MAP_PREFETCHER = undef;	2116	our $MAP_PREFETCHER = undef;
1592		2117
1593	sub find_async {	2118	sub find_async {
1594	my ($path, $origin) = @_;	2119	my ($path, $origin, $load) = @_;
1595		2120
1596	$path = normalise $path, $origin && $origin->{path};	2121	$path = normalise $path, $origin && $origin->{path};
1597		2122
1598	if (my $map = $cf::MAP{$path}) {	2123	if (my $map = $cf::MAP{$path}) {
1599	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2124	return $map if !$load || $map->in_memory == cf::MAP_ACTIVE;
1600	}	2125	}
1601		2126
1602	undef $MAP_PREFETCH{$path};	2127	$MAP_PREFETCH{$path} |= $load;
		2128
1603	$MAP_PREFETCHER ||= cf::async {	2129	$MAP_PREFETCHER ||= cf::async {
		2130	$Coro::current->{desc} = "map prefetcher";
		2131
1604	while (%MAP_PREFETCH) {	2132	while (%MAP_PREFETCH) {
1605	for my $path (keys %MAP_PREFETCH) {	2133	while (my ($k, $v) = each %MAP_PREFETCH) {
1606	my $map = find $path	2134	if (my $map = find $k) {
1607	or next;
1608	$map->load;	2135	$map->load if $v;
		2136	}
1609		2137
1610	delete $MAP_PREFETCH{$path};	2138	delete $MAP_PREFETCH{$k};
1611	}	2139	}
1612	}	2140	}
1613	undef $MAP_PREFETCHER;	2141	undef $MAP_PREFETCHER;
1614	};	2142	};
1615	$MAP_PREFETCHER->prio (6);	2143	$MAP_PREFETCHER->prio (6);
…		…
1618	}	2146	}
1619		2147
1620	sub save {	2148	sub save {
1621	my ($self) = @_;	2149	my ($self) = @_;
1622		2150
1623	my $lock = cf::lock_acquire "map_data:" . $self->path;	2151	my $lock = cf::lock_acquire "map_data:$self->{path}";
1624		2152
1625	$self->{last_save} = $cf::RUNTIME;	2153	$self->{last_save} = $cf::RUNTIME;
1626		2154
1627	return unless $self->dirty;	2155	return unless $self->dirty;
1628		2156
…		…
1634	return if $self->{deny_save};	2162	return if $self->{deny_save};
1635		2163
1636	local $self->{last_access} = $self->last_access;#d#	2164	local $self->{last_access} = $self->last_access;#d#
1637		2165
1638	cf::async {	2166	cf::async {
		2167	$Coro::current->{desc} = "map player save";
1639	$_->contr->save for $self->players;	2168	$_->contr->save for $self->players;
1640	};	2169	};
		2170
		2171	cf::get_slot 0.02;
1641		2172
1642	if ($uniq) {	2173	if ($uniq) {
1643	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2174	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1644	$self->_save_objects ($uniq, cf::IO_UNIQUES);	2175	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1645	} else {	2176	} else {
…		…
1651	my ($self) = @_;	2182	my ($self) = @_;
1652		2183
1653	# save first because save cedes	2184	# save first because save cedes
1654	$self->save;	2185	$self->save;
1655		2186
1656	my $lock = cf::lock_acquire "map_data:" . $self->path;	2187	my $lock = cf::lock_acquire "map_data:$self->{path}";
1657		2188
1658	return if $self->players;	2189	return if $self->players;
1659	return if $self->in_memory != cf::MAP_IN_MEMORY;	2190	return if $self->in_memory != cf::MAP_ACTIVE;
1660	return if $self->{deny_save};	2191	return if $self->{deny_save};
1661		2192
		2193	$self->in_memory (cf::MAP_SWAPPED);
		2194
		2195	$self->deactivate;
		2196	$_->clear_links_to ($self) for values %cf::MAP;
1662	$self->clear;	2197	$self->clear;
1663	$self->in_memory (cf::MAP_SWAPPED);
1664	}	2198	}
1665		2199
1666	sub reset_at {	2200	sub reset_at {
1667	my ($self) = @_;	2201	my ($self) = @_;
1668		2202
1669	# TODO: safety, remove and allow resettable per-player maps	2203	# TODO: safety, remove and allow resettable per-player maps
1670	return 1e99 if $self->isa ("ext::map_per_player");#d#
1671	return 1e99 if $self->{deny_reset};	2204	return 1e99 if $self->{deny_reset};
1672		2205
1673	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2206	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1674	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2207	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1675		2208
…		…
1686	my ($self) = @_;	2219	my ($self) = @_;
1687		2220
1688	my $lock = cf::lock_acquire "map_data:$self->{path}";	2221	my $lock = cf::lock_acquire "map_data:$self->{path}";
1689		2222
1690	return if $self->players;	2223	return if $self->players;
1691	return if $self->isa ("ext::map_per_player");#d#
1692		2224
1693	warn "resetting map ", $self->path;#d#	2225	warn "resetting map ", $self->path, "\n";
1694		2226
1695	$self->in_memory (cf::MAP_SWAPPED);	2227	$self->in_memory (cf::MAP_SWAPPED);
1696		2228
1697	# need to save uniques path	2229	# need to save uniques path
1698	unless ($self->{deny_save}) {	2230	unless ($self->{deny_save}) {
…		…
1702	if $uniq;	2234	if $uniq;
1703	}	2235	}
1704		2236
1705	delete $cf::MAP{$self->path};	2237	delete $cf::MAP{$self->path};
1706		2238
		2239	$self->deactivate;
		2240	$_->clear_links_to ($self) for values %cf::MAP;
1707	$self->clear;	2241	$self->clear;
1708
1709	$_->clear_links_to ($self) for values %cf::MAP;
1710		2242
1711	$self->unlink_save;	2243	$self->unlink_save;
1712	$self->destroy;	2244	$self->destroy;
1713	}	2245	}
1714		2246
1715	my $nuke_counter = "aaaa";	2247	my $nuke_counter = "aaaa";
1716		2248
1717	sub nuke {	2249	sub nuke {
1718	my ($self) = @_;	2250	my ($self) = @_;
1719		2251
		2252	{
		2253	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2254
1720	delete $cf::MAP{$self->path};	2255	delete $cf::MAP{$self->path};
1721		2256
1722	$self->unlink_save;	2257	$self->unlink_save;
1723		2258
1724	bless $self, "cf::map";	2259	bless $self, "cf::map";
1725	delete $self->{deny_reset};	2260	delete $self->{deny_reset};
1726	$self->{deny_save} = 1;	2261	$self->{deny_save} = 1;
1727	$self->reset_timeout (1);	2262	$self->reset_timeout (1);
1728	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2263	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1729		2264
1730	$cf::MAP{$self->path} = $self;	2265	$cf::MAP{$self->path} = $self;
		2266	}
1731		2267
1732	$self->reset; # polite request, might not happen	2268	$self->reset; # polite request, might not happen
		2269	}
		2270
		2271	=item $maps = cf::map::tmp_maps
		2272
		2273	Returns an arrayref with all map paths of currently instantiated and saved
		2274	maps. May block.
		2275
		2276	=cut
		2277
		2278	sub tmp_maps() {
		2279	[
		2280	map {
		2281	utf8::decode $_;
		2282	/\.map$/
		2283	? normalise $_
		2284	: ()
		2285	} @{ aio_readdir $TMPDIR or [] }
		2286	]
		2287	}
		2288
		2289	=item $maps = cf::map::random_maps
		2290
		2291	Returns an arrayref with all map paths of currently instantiated and saved
		2292	random maps. May block.
		2293
		2294	=cut
		2295
		2296	sub random_maps() {
		2297	[
		2298	map {
		2299	utf8::decode $_;
		2300	/\.map$/
		2301	? normalise "?random/$_"
		2302	: ()
		2303	} @{ aio_readdir $RANDOMDIR or [] }
		2304	]
1733	}	2305	}
1734		2306
1735	=item cf::map::unique_maps	2307	=item cf::map::unique_maps
1736		2308
1737	Returns an arrayref of paths of all shared maps that have	2309	Returns an arrayref of paths of all shared maps that have
1738	instantiated unique items. May block.	2310	instantiated unique items. May block.
1739		2311
1740	=cut	2312	=cut
1741		2313
1742	sub unique_maps() {	2314	sub unique_maps() {
1743	my $files = aio_readdir $UNIQUEDIR	2315	[
1744	or return;	2316	map {
1745
1746	my @paths;
1747
1748	for (@$files) {
1749	utf8::decode $_;	2317	utf8::decode $_;
1750	next if /\.pst$/;	2318	s/\.map$//; # TODO future compatibility hack
1751	next unless /^$PATH_SEP/o;	2319	/\.pst$/ || !/^$PATH_SEP/o # TODO unique maps apparebntly lack the .map suffix :/
1752		2320	? ()
1753	push @paths, cf::map::normalise $_;	2321	: normalise $_
		2322	} @{ aio_readdir $UNIQUEDIR or [] }
1754	}	2323	]
1755
1756	\@paths
1757	}	2324	}
1758
1759	package cf;
1760		2325
1761	=back	2326	=back
1762		2327
1763	=head3 cf::object	2328	=head3 cf::object
1764		2329
…		…
1768		2333
1769	=over 4	2334	=over 4
1770		2335
1771	=item $ob->inv_recursive	2336	=item $ob->inv_recursive
1772		2337
1773	Returns the inventory of the object _and_ their inventories, recursively.	2338	Returns the inventory of the object I<and> their inventories, recursively,
		2339	but I<not> the object itself.
1774		2340
1775	=cut	2341	=cut
1776		2342
1777	sub inv_recursive_;	2343	sub inv_recursive_;
1778	sub inv_recursive_ {	2344	sub inv_recursive_ {
…		…
1781		2347
1782	sub inv_recursive {	2348	sub inv_recursive {
1783	inv_recursive_ inv $_[0]	2349	inv_recursive_ inv $_[0]
1784	}	2350	}
1785		2351
		2352	=item $ref = $ob->ref
		2353
		2354	Creates and returns a persistent reference to an object that can be stored as a string.
		2355
		2356	=item $ob = cf::object::deref ($refstring)
		2357
		2358	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2359	even if the object actually exists. May block.
		2360
		2361	=cut
		2362
		2363	sub deref {
		2364	my ($ref) = @_;
		2365
		2366	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2367	my ($uuid, $name) = ($1, $2);
		2368	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2369	or return;
		2370	$pl->ob->uuid eq $uuid
		2371	or return;
		2372
		2373	$pl->ob
		2374	} else {
		2375	warn "$ref: cannot resolve object reference\n";
		2376	undef
		2377	}
		2378	}
		2379
1786	package cf;	2380	package cf;
1787		2381
1788	=back	2382	=back
1789		2383
1790	=head3 cf::object::player	2384	=head3 cf::object::player
…		…
1796	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>	2390	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
1797	can be C<undef>. Does the right thing when the player is currently in a	2391	can be C<undef>. Does the right thing when the player is currently in a
1798	dialogue with the given NPC character.	2392	dialogue with the given NPC character.
1799		2393
1800	=cut	2394	=cut
		2395
		2396	our $SAY_CHANNEL = {
		2397	id => "say",
		2398	title => "Map",
		2399	reply => "say ",
		2400	tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
		2401	};
		2402
		2403	our $CHAT_CHANNEL = {
		2404	id => "chat",
		2405	title => "Chat",
		2406	reply => "chat ",
		2407	tooltip => "Player chat and shouts, global to the server.",
		2408	};
1801		2409
1802	# rough implementation of a future "reply" method that works	2410	# rough implementation of a future "reply" method that works
1803	# with dialog boxes.	2411	# with dialog boxes.
1804	#TODO: the first argument must go, split into a $npc->reply_to ( method	2412	#TODO: the first argument must go, split into a $npc->reply_to ( method
1805	sub cf::object::player::reply($$$;$) {	2413	sub cf::object::player::reply($$$;$) {
…		…
1807		2415
1808	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2416	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1809		2417
1810	if ($self->{record_replies}) {	2418	if ($self->{record_replies}) {
1811	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2419	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2420
1812	} else {	2421	} else {
		2422	my $pl = $self->contr;
		2423
		2424	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2425	my $dialog = $pl->{npc_dialog};
		2426	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2427
		2428	} else {
1813	$msg = $npc->name . " says: $msg" if $npc;	2429	$msg = $npc->name . " says: $msg" if $npc;
1814	$self->message ($msg, $flags);	2430	$self->send_msg ($SAY_CHANNEL => $msg, $flags);
		2431	}
1815	}	2432	}
		2433	}
		2434
		2435	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2436
		2437	=cut
		2438
		2439	sub cf::object::send_msg {
		2440	my $pl = shift->contr
		2441	or return;
		2442	$pl->send_msg (@_);
1816	}	2443	}
1817		2444
1818	=item $player_object->may ("access")	2445	=item $player_object->may ("access")
1819		2446
1820	Returns wether the given player is authorized to access resource "access"	2447	Returns wether the given player is authorized to access resource "access"
…		…
1833		2460
1834	=item $player_object->enter_link	2461	=item $player_object->enter_link
1835		2462
1836	Freezes the player and moves him/her to a special map (C<{link}>).	2463	Freezes the player and moves him/her to a special map (C<{link}>).
1837		2464
1838	The player should be reasonably safe there for short amounts of time. You	2465	The player should be reasonably safe there for short amounts of time (e.g.
1839	I<MUST> call C<leave_link> as soon as possible, though.	2466	for loading a map). You I<MUST> call C<leave_link> as soon as possible,
		2467	though, as the palyer cannot control the character while it is on the link
		2468	map.
1840		2469
1841	Will never block.	2470	Will never block.
1842		2471
1843	=item $player_object->leave_link ($map, $x, $y)	2472	=item $player_object->leave_link ($map, $x, $y)
1844		2473
…		…
1862	}	2491	}
1863		2492
1864	sub cf::object::player::enter_link {	2493	sub cf::object::player::enter_link {
1865	my ($self) = @_;	2494	my ($self) = @_;
1866		2495
		2496	$self->deactivate_recursive;
		2497
1867	return if UNIVERSAL::isa $self->map, "ext::map_link";	2498	return if UNIVERSAL::isa $self->map, "ext::map_link";
1868		2499
1869	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2500	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1870	if $self->map;	2501	if $self->map && $self->map->{path} ne "{link}";
1871		2502
1872	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2503	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1873	}	2504	}
1874		2505
1875	sub cf::object::player::leave_link {	2506	sub cf::object::player::leave_link {
1876	my ($self, $map, $x, $y) = @_;	2507	my ($self, $map, $x, $y) = @_;
		2508
		2509	return unless $self->contr->active;
1877		2510
1878	my $link_pos = delete $self->{_link_pos};	2511	my $link_pos = delete $self->{_link_pos};
1879		2512
1880	unless ($map) {	2513	unless ($map) {
1881	# restore original map position	2514	# restore original map position
…		…
1895	# use -1 or undef as default coordinates, not 0, 0	2528	# use -1 or undef as default coordinates, not 0, 0
1896	($x, $y) = ($map->enter_x, $map->enter_y)	2529	($x, $y) = ($map->enter_x, $map->enter_y)
1897	if $x <=0 && $y <= 0;	2530	if $x <=0 && $y <= 0;
1898		2531
1899	$map->load;	2532	$map->load;
1900	$map->load_diag;	2533	$map->load_neighbours;
1901		2534
1902	return unless $self->contr->active;	2535	return unless $self->contr->active;
1903	$self->activate_recursive;
1904		2536
1905	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext	2537	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1906	$self->enter_map ($map, $x, $y);	2538	$self->enter_map ($map, $x, $y);
1907	}
1908		2539
1909	cf::player->attach (	2540	# only activate afterwards, to support waiting in hooks
1910	on_logout => sub {	2541	$self->activate_recursive;
1911	my ($pl) = @_;	2542	}
1912		2543
1913	# abort map switching before logout	2544	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1914	if ($pl->ob->{_link_pos}) {
1915	cf::sync_job {
1916	$pl->ob->leave_link
1917	};
1918	}
1919	},
1920	on_login => sub {
1921	my ($pl) = @_;
1922		2545
1923	# try to abort aborted map switching on player login :)	2546	Moves the player to the given map-path and coordinates by first freezing
1924	# should happen only on crashes	2547	her, loading and preparing them map, calling the provided $check callback
1925	if ($pl->ob->{_link_pos}) {	2548	that has to return the map if sucecssful, and then unfreezes the player on
1926	$pl->ob->enter_link;	2549	the new (success) or old (failed) map position. In either case, $done will
1927	(async {	2550	be called at the end of this process.
1928	$pl->ob->reply (undef,
1929	"There was an internal problem at your last logout, "
1930	. "the server will try to bring you to your intended destination in a second.",
1931	cf::NDI_RED);
1932	# we need this sleep as the login has a concurrent enter_exit running
1933	# and this sleep increases chances of the player not ending up in scorn
1934	Coro::Timer::sleep 1;
1935	$pl->ob->leave_link;
1936	})->prio (2);
1937	}
1938	},
1939	);
1940		2551
1941	=item $player_object->goto ($path, $x, $y)	2552	Note that $check will be called with a potentially non-loaded map, so if
		2553	it needs a loaded map it has to call C<< ->load >>.
1942		2554
1943	=cut	2555	=cut
		2556
		2557	our $GOTOGEN;
1944		2558
1945	sub cf::object::player::goto {	2559	sub cf::object::player::goto {
1946	my ($self, $path, $x, $y) = @_;	2560	my ($self, $path, $x, $y, $check, $done) = @_;
		2561
		2562	# do generation counting so two concurrent goto's will be executed in-order
		2563	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1947		2564
1948	$self->enter_link;	2565	$self->enter_link;
1949		2566
1950	(async {	2567	(async {
		2568	$Coro::current->{desc} = "player::goto $path $x $y";
		2569
		2570	# *tag paths override both path and x|y
		2571	if ($path =~ /^\*(.*)$/) {
		2572	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2573	my $ob = $obs[rand @obs];
		2574
		2575	# see if we actually can go there
		2576	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2577	$ob = $obs[rand @obs];
		2578	} else {
		2579	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2580	}
		2581	# else put us there anyways for now #d#
		2582
		2583	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2584	} else {
		2585	($path, $x, $y) = (undef, undef, undef);
		2586	}
		2587	}
		2588
1951	my $map = eval {	2589	my $map = eval {
1952	my $map = cf::map::find $path;	2590	my $map = defined $path ? cf::map::find $path : undef;
		2591
		2592	if ($map) {
1953	$map = $map->customise_for ($self) if $map;	2593	$map = $map->customise_for ($self);
		2594	$map = $check->($map) if $check && $map;
		2595	} else {
		2596	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2597	}
		2598
1954	$map	2599	$map
		2600	};
		2601
		2602	if ($@) {
		2603	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2604	LOG llevError | logBacktrace, Carp::longmess $@;
1955	} or	2605	}
1956	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1957		2606
		2607	if ($gen == $self->{_goto_generation}) {
		2608	delete $self->{_goto_generation};
1958	$self->leave_link ($map, $x, $y);	2609	$self->leave_link ($map, $x, $y);
		2610	}
		2611
		2612	$done->() if $done;
1959	})->prio (1);	2613	})->prio (1);
1960	}	2614	}
1961		2615
1962	=item $player_object->enter_exit ($exit_object)	2616	=item $player_object->enter_exit ($exit_object)
1963		2617
…		…
1983	}	2637	}
1984		2638
1985	sub prepare_random_map {	2639	sub prepare_random_map {
1986	my ($exit) = @_;	2640	my ($exit) = @_;
1987		2641
1988	my $guard = cf::lock_acquire "exit_prepare:$exit";
1989
1990	# all this does is basically replace the /! path by	2642	# all this does is basically replace the /! path by
1991	# a new random map path (?random/...) with a seed	2643	# a new random map path (?random/...) with a seed
1992	# that depends on the exit object	2644	# that depends on the exit object
1993		2645
1994	my $rmp = parse_random_map_params $exit->msg;	2646	my $rmp = parse_random_map_params $exit->msg;
…		…
1996	if ($exit->map) {	2648	if ($exit->map) {
1997	$rmp->{region} = $exit->region->name;	2649	$rmp->{region} = $exit->region->name;
1998	$rmp->{origin_map} = $exit->map->path;	2650	$rmp->{origin_map} = $exit->map->path;
1999	$rmp->{origin_x} = $exit->x;	2651	$rmp->{origin_x} = $exit->x;
2000	$rmp->{origin_y} = $exit->y;	2652	$rmp->{origin_y} = $exit->y;
		2653
		2654	$exit->map->touch;
2001	}	2655	}
2002		2656
2003	$rmp->{random_seed} ||= $exit->random_seed;	2657	$rmp->{random_seed} ||= $exit->random_seed;
2004		2658
2005	my $data = cf::to_json $rmp;	2659	my $data = JSON::XS->new->utf8->pretty->canonical->encode ($rmp);
2006	my $md5 = Digest::MD5::md5_hex $data;	2660	my $md5 = Digest::MD5::md5_hex $data;
2007	my $meta = "$RANDOMDIR/$md5.meta";	2661	my $meta = "$RANDOMDIR/$md5.meta";
2008		2662
2009	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2663	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
2010	aio_write $fh, 0, (length $data), $data, 0;	2664	aio_write $fh, 0, (length $data), $data, 0;
2011	undef $fh;	2665	undef $fh;
2012	aio_rename "$meta~", $meta;	2666	aio_rename "$meta~", $meta;
2013		2667
		2668	my $slaying = "?random/$md5";
		2669
		2670	if ($exit->valid) {
2014	$exit->slaying ("?random/$md5");	2671	$exit->slaying ("?random/$md5");
2015	$exit->msg (undef);	2672	$exit->msg (undef);
		2673	}
2016	}	2674	}
2017	}	2675	}
2018		2676
2019	sub cf::object::player::enter_exit {	2677	sub cf::object::player::enter_exit {
2020	my ($self, $exit) = @_;	2678	my ($self, $exit) = @_;
2021		2679
2022	return unless $self->type == cf::PLAYER;	2680	return unless $self->type == cf::PLAYER;
2023		2681
2024	if ($exit->slaying eq "/!") {
2025	#TODO: this should de-fi-ni-te-ly not be a sync-job
2026	# the problem is that $exit might not survive long enough
2027	# so it needs to be done right now, right here
2028	cf::sync_job { prepare_random_map $exit };
2029	}
2030
2031	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
2032	my $hp = $exit->stats->hp;
2033	my $sp = $exit->stats->sp;
2034
2035	$self->enter_link;	2682	$self->enter_link;
2036		2683
2037	(async {	2684	(async {
2038	$self->deactivate_recursive; # just to be sure	2685	$Coro::current->{desc} = "enter_exit";
		2686
2039	unless (eval {	2687	unless (eval {
		2688	$self->deactivate_recursive; # just to be sure
		2689
		2690	# random map handling
		2691	{
		2692	my $guard = cf::lock_acquire "exit_prepare:$exit";
		2693
		2694	prepare_random_map $exit
		2695	if $exit->slaying eq "/!";
		2696	}
		2697
		2698	my $map = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2699	my $x = $exit->stats->hp;
		2700	my $y = $exit->stats->sp;
		2701
2040	$self->goto ($slaying, $hp, $sp);	2702	$self->goto ($map, $x, $y);
2041		2703
		2704	# if exit is damned, update players death & WoR home-position
		2705	$self->contr->savebed ($map, $x, $y)
		2706	if $exit->flag (cf::FLAG_DAMNED);
		2707
2042	1;	2708	1
2043	}) {	2709	}) {
2044	$self->message ("Something went wrong deep within the crossfire server. "	2710	$self->message ("Something went wrong deep within the deliantra server. "
2045	. "I'll try to bring you back to the map you were before. "	2711	. "I'll try to bring you back to the map you were before. "
2046	. "Please report this to the dungeon master!",	2712	. "Please report this to the dungeon master!",
2047	cf::NDI_UNIQUE | cf::NDI_RED);	2713	cf::NDI_UNIQUE | cf::NDI_RED);
2048		2714
2049	warn "ERROR in enter_exit: $@";	2715	warn "ERROR in enter_exit: $@";
…		…
2068		2734
2069	utf8::encode $text;	2735	utf8::encode $text;
2070	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);	2736	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
2071	}	2737	}
2072		2738
		2739	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2740
		2741	Send a drawinfo or msg packet to the client, formatting the msg for the
		2742	client if neccessary. C<$type> should be a string identifying the type of
		2743	the message, with C<log> being the default. If C<$color> is negative, suppress
		2744	the message unless the client supports the msg packet.
		2745
		2746	=cut
		2747
		2748	# non-persistent channels (usually the info channel)
		2749	our %CHANNEL = (
		2750	"c/identify" => {
		2751	id => "infobox",
		2752	title => "Identify",
		2753	reply => undef,
		2754	tooltip => "Items recently identified",
		2755	},
		2756	"c/examine" => {
		2757	id => "infobox",
		2758	title => "Examine",
		2759	reply => undef,
		2760	tooltip => "Signs and other items you examined",
		2761	},
		2762	"c/book" => {
		2763	id => "infobox",
		2764	title => "Book",
		2765	reply => undef,
		2766	tooltip => "The contents of a note or book",
		2767	},
		2768	"c/lookat" => {
		2769	id => "infobox",
		2770	title => "Look",
		2771	reply => undef,
		2772	tooltip => "What you saw there",
		2773	},
		2774	"c/who" => {
		2775	id => "infobox",
		2776	title => "Players",
		2777	reply => undef,
		2778	tooltip => "Shows players who are currently online",
		2779	},
		2780	"c/body" => {
		2781	id => "infobox",
		2782	title => "Body Parts",
		2783	reply => undef,
		2784	tooltip => "Shows which body parts you posess and are available",
		2785	},
		2786	"c/statistics" => {
		2787	id => "infobox",
		2788	title => "Statistics",
		2789	reply => undef,
		2790	tooltip => "Shows your primary statistics",
		2791	},
		2792	"c/skills" => {
		2793	id => "infobox",
		2794	title => "Skills",
		2795	reply => undef,
		2796	tooltip => "Shows your experience per skill and item power",
		2797	},
		2798	"c/shopitems" => {
		2799	id => "infobox",
		2800	title => "Shop Items",
		2801	reply => undef,
		2802	tooltip => "Shows the items currently for sale in this shop",
		2803	},
		2804	"c/resistances" => {
		2805	id => "infobox",
		2806	title => "Resistances",
		2807	reply => undef,
		2808	tooltip => "Shows your resistances",
		2809	},
		2810	"c/pets" => {
		2811	id => "infobox",
		2812	title => "Pets",
		2813	reply => undef,
		2814	tooltip => "Shows information abotu your pets/a specific pet",
		2815	},
		2816	"c/perceiveself" => {
		2817	id => "infobox",
		2818	title => "Perceive Self",
		2819	reply => undef,
		2820	tooltip => "You gained detailed knowledge about yourself",
		2821	},
		2822	"c/uptime" => {
		2823	id => "infobox",
		2824	title => "Uptime",
		2825	reply => undef,
		2826	tooltip => "How long the server has been running since last restart",
		2827	},
		2828	"c/mapinfo" => {
		2829	id => "infobox",
		2830	title => "Map Info",
		2831	reply => undef,
		2832	tooltip => "Information related to the maps",
		2833	},
		2834	"c/party" => {
		2835	id => "party",
		2836	title => "Party",
		2837	reply => "gsay ",
		2838	tooltip => "Messages and chat related to your party",
		2839	},
		2840	"c/death" => {
		2841	id => "death",
		2842	title => "Death",
		2843	reply => undef,
		2844	tooltip => "Reason for and more info about your most recent death",
		2845	},
		2846	"c/say" => $SAY_CHANNEL,
		2847	"c/chat" => $CHAT_CHANNEL,
		2848	);
		2849
		2850	sub cf::client::send_msg {
		2851	my ($self, $channel, $msg, $color, @extra) = @_;
		2852
		2853	$msg = $self->pl->expand_cfpod ($msg)
		2854	unless $color & cf::NDI_VERBATIM;
		2855
		2856	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2857
		2858	# check predefined channels, for the benefit of C
		2859	if ($CHANNEL{$channel}) {
		2860	$channel = $CHANNEL{$channel};
		2861
		2862	$self->ext_msg (channel_info => $channel);
		2863	$channel = $channel->{id};
		2864
		2865	} elsif (ref $channel) {
		2866	# send meta info to client, if not yet sent
		2867	unless (exists $self->{channel}{$channel->{id}}) {
		2868	$self->{channel}{$channel->{id}} = $channel;
		2869	$self->ext_msg (channel_info => $channel);
		2870	}
		2871
		2872	$channel = $channel->{id};
		2873	}
		2874
		2875	return unless @extra || length $msg;
		2876
		2877	# default colour, mask it out
		2878	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2879	if $color & cf::NDI_DEF;
		2880
		2881	my $pkt = "msg "
		2882	. $self->{json_coder}->encode (
		2883	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
		2884	);
		2885
		2886	# try lzf for large packets
		2887	$pkt = "lzf " . Compress::LZF::compress $pkt
		2888	if 1024 <= length $pkt and $self->{can_lzf};
		2889
		2890	# split very large packets
		2891	if (8192 < length $pkt and $self->{can_lzf}) {
		2892	$self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
		2893	$pkt = "frag";
		2894	}
		2895
		2896	$self->send_packet ($pkt);
		2897	}
		2898
2073	=item $client->ext_event ($type, %msg)	2899	=item $client->ext_msg ($type, @msg)
2074		2900
2075	Sends an exti event to the client.	2901	Sends an ext event to the client.
2076		2902
2077	=cut	2903	=cut
2078		2904
2079	sub cf::client::ext_event($$%) {	2905	sub cf::client::ext_msg($$@) {
2080	my ($self, $type, %msg) = @_;	2906	my ($self, $type, @msg) = @_;
2081		2907
		2908	if ($self->extcmd == 2) {
		2909	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2910	} elsif ($self->extcmd == 1) { # TODO: remove
2082	$msg{msgtype} = "event_$type";	2911	push @msg, msgtype => "event_$type";
2083	$self->send_packet ("ext " . cf::to_json \%msg);	2912	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2913	}
		2914	}
		2915
		2916	=item $client->ext_reply ($msgid, @msg)
		2917
		2918	Sends an ext reply to the client.
		2919
		2920	=cut
		2921
		2922	sub cf::client::ext_reply($$@) {
		2923	my ($self, $id, @msg) = @_;
		2924
		2925	if ($self->extcmd == 2) {
		2926	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2927	} elsif ($self->extcmd == 1) {
		2928	#TODO: version 1, remove
		2929	unshift @msg, msgtype => "reply", msgid => $id;
		2930	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2931	}
2084	}	2932	}
2085		2933
2086	=item $success = $client->query ($flags, "text", \&cb)	2934	=item $success = $client->query ($flags, "text", \&cb)
2087		2935
2088	Queues a query to the client, calling the given callback with	2936	Queues a query to the client, calling the given callback with
2089	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2937	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
2090	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2938	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
2091		2939
2092	Queries can fail, so check the return code. Or don't, as queries will become	2940	Queries can fail, so check the return code. Or don't, as queries will
2093	reliable at some point in the future.	2941	become reliable at some point in the future.
2094		2942
2095	=cut	2943	=cut
2096		2944
2097	sub cf::client::query {	2945	sub cf::client::query {
2098	my ($self, $flags, $text, $cb) = @_;	2946	my ($self, $flags, $text, $cb) = @_;
…		…
2106	utf8::encode $text;	2954	utf8::encode $text;
2107	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2955	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
2108		2956
2109	$self->send_packet ($self->{query_queue}[0][0])	2957	$self->send_packet ($self->{query_queue}[0][0])
2110	if @{ $self->{query_queue} } == 1;	2958	if @{ $self->{query_queue} } == 1;
		2959
		2960	1
2111	}	2961	}
2112		2962
2113	cf::client->attach (	2963	cf::client->attach (
		2964	on_connect => sub {
		2965	my ($ns) = @_;
		2966
		2967	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2968	},
2114	on_reply => sub {	2969	on_reply => sub {
2115	my ($ns, $msg) = @_;	2970	my ($ns, $msg) = @_;
2116		2971
2117	# this weird shuffling is so that direct followup queries	2972	# this weird shuffling is so that direct followup queries
2118	# get handled first	2973	# get handled first
…		…
2130	} else {	2985	} else {
2131	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2986	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2132	}	2987	}
2133	}	2988	}
2134	},	2989	},
		2990	on_exticmd => sub {
		2991	my ($ns, $buf) = @_;
		2992
		2993	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2994
		2995	if (ref $msg) {
		2996	my ($type, $reply, @payload) =
		2997	"ARRAY" eq ref $msg
		2998	? @$msg
		2999	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		3000
		3001	my @reply;
		3002
		3003	if (my $cb = $EXTICMD{$type}) {
		3004	@reply = $cb->($ns, @payload);
		3005	}
		3006
		3007	$ns->ext_reply ($reply, @reply)
		3008	if $reply;
		3009
		3010	} else {
		3011	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		3012	}
		3013
		3014	cf::override;
		3015	},
2135	);	3016	);
2136		3017
2137	=item $client->async (\&cb)	3018	=item $client->async (\&cb)
2138		3019
2139	Create a new coroutine, running the specified callback. The coroutine will	3020	Create a new coroutine, running the specified callback. The coroutine will
…		…
2180	our $safe = new Safe "safe";	3061	our $safe = new Safe "safe";
2181	our $safe_hole = new Safe::Hole;	3062	our $safe_hole = new Safe::Hole;
2182		3063
2183	$SIG{FPE} = 'IGNORE';	3064	$SIG{FPE} = 'IGNORE';
2184		3065
2185	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3066	$safe->permit_only (Opcode::opset qw(
		3067	:base_core :base_mem :base_orig :base_math
		3068	grepstart grepwhile mapstart mapwhile
		3069	sort time
		3070	));
2186		3071
2187	# here we export the classes and methods available to script code	3072	# here we export the classes and methods available to script code
2188		3073
2189	=pod	3074	=pod
2190		3075
2191	The following functions and methods are available within a safe environment:	3076	The following functions and methods are available within a safe environment:
2192		3077
2193	cf::object contr pay_amount pay_player map	3078	cf::object
		3079	contr pay_amount pay_player map x y force_find force_add destroy
		3080	insert remove name archname title slaying race decrease split
		3081	value
		3082
2194	cf::object::player player	3083	cf::object::player
2195	cf::player peaceful	3084	player
2196	cf::map trigger	3085
		3086	cf::player
		3087	peaceful
		3088
		3089	cf::map
		3090	trigger
2197		3091
2198	=cut	3092	=cut
2199		3093
2200	for (	3094	for (
2201	["cf::object" => qw(contr pay_amount pay_player map)],	3095	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3096	insert remove inv nrof name archname title slaying race
		3097	decrease split destroy change_exp value msg lore send_msg)],
2202	["cf::object::player" => qw(player)],	3098	["cf::object::player" => qw(player)],
2203	["cf::player" => qw(peaceful)],	3099	["cf::player" => qw(peaceful send_msg)],
2204	["cf::map" => qw(trigger)],	3100	["cf::map" => qw(trigger)],
2205	) {	3101	) {
2206	no strict 'refs';	3102	no strict 'refs';
2207	my ($pkg, @funs) = @$_;	3103	my ($pkg, @funs) = @$_;
2208	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})	3104	*{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
…		…
2225	my ($code, %vars) = @_;	3121	my ($code, %vars) = @_;
2226		3122
2227	my $qcode = $code;	3123	my $qcode = $code;
2228	$qcode =~ s/"/‟/g; # not allowed in #line filenames	3124	$qcode =~ s/"/‟/g; # not allowed in #line filenames
2229	$qcode =~ s/\n/\\n/g;	3125	$qcode =~ s/\n/\\n/g;
		3126
		3127	%vars = (_dummy => 0) unless %vars;
2230		3128
2231	local $_;	3129	local $_;
2232	local @safe::cf::_safe_eval_args = values %vars;	3130	local @safe::cf::_safe_eval_args = values %vars;
2233		3131
2234	my $eval =	3132	my $eval =
…		…
2277	=back	3175	=back
2278		3176
2279	=cut	3177	=cut
2280		3178
2281	#############################################################################	3179	#############################################################################
2282
2283	=head2 EXTENSION DATABASE SUPPORT
2284
2285	Crossfire maintains a very simple database for extension use. It can
2286	currently store binary data only (use Compress::LZF::sfreeze_cr/sthaw to
2287	convert to/from binary).
2288
2289	The parameter C<$family> should best start with the name of the extension
2290	using it, it should be unique.
2291
2292	=over 4
2293
2294	=item $value = cf::db_get $family => $key
2295
2296	Returns a single value from the database.
2297
2298	=item cf::db_put $family => $key => $value
2299
2300	Stores the given C<$value> in the family.
2301
2302	=cut
2303
2304	our $DB;
2305
2306	sub db_init {
2307	unless ($DB) {
2308	$DB = BDB::db_create $DB_ENV;
2309
2310	cf::sync_job {
2311	eval {
2312	$DB->set_flags (BDB::CHKSUM);
2313
2314	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
2315	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
2316	cf::cleanup "db_open(db): $!" if $!;
2317	};
2318	cf::cleanup "db_open(db): $@" if $@;
2319	};
2320	}
2321	}
2322
2323	sub db_get($$) {
2324	my $key = "$_[0]/$_[1]";
2325
2326	cf::sync_job {
2327	BDB::db_get $DB, undef, $key, my $data;
2328
2329	$! ? ()
2330	: $data
2331	}
2332	}
2333
2334	sub db_put($$$) {
2335	BDB::dbreq_pri 4;
2336	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
2337	}
2338
2339	=item cf::cache $id => [$paths...], $processversion => $process
2340
2341	Generic caching function that returns the value of the resource $id,
2342	caching and regenerating as required.
2343
2344	This function can block.
2345
2346	=cut
2347
2348	sub cache {
2349	my ($id, $src, $processversion, $process) = @_;
2350
2351	my $meta =
2352	join "\x00",
2353	$processversion,
2354	map {
2355	aio_stat $_
2356	and Carp::croak "$_: $!";
2357
2358	($_, (stat _)[7,9])
2359	} @$src;
2360
2361	my $dbmeta = db_get cache => "$id/meta";
2362	if ($dbmeta ne $meta) {
2363	# changed, we may need to process
2364
2365	my @data;
2366	my $md5;
2367
2368	for (0 .. $#$src) {
2369	0 <= aio_load $src->[$_], $data[$_]
2370	or Carp::croak "$src->[$_]: $!";
2371	}
2372
2373	# if processing is expensive, check
2374	# checksum first
2375	if (1) {
2376	$md5 =
2377	join "\x00",
2378	$processversion,
2379	map {
2380	Coro::cede;
2381	($src->[$_], Digest::MD5::md5_hex $data[$_])
2382	} 0.. $#$src;
2383
2384
2385	my $dbmd5 = db_get cache => "$id/md5";
2386	if ($dbmd5 eq $md5) {
2387	db_put cache => "$id/meta", $meta;
2388
2389	return db_get cache => "$id/data";
2390	}
2391	}
2392
2393	my $t1 = Time::HiRes::time;
2394	my $data = $process->(\@data);
2395	my $t2 = Time::HiRes::time;
2396
2397	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
2398
2399	db_put cache => "$id/data", $data;
2400	db_put cache => "$id/md5" , $md5;
2401	db_put cache => "$id/meta", $meta;
2402
2403	return $data;
2404	}
2405
2406	db_get cache => "$id/data"
2407	}
2408
2409	=item fork_call { }, $args
2410
2411	Executes the given code block with the given arguments in a seperate
2412	process, returning the results. Everything must be serialisable with
2413	Coro::Storable. May, of course, block. Note that the executed sub may
2414	never block itself or use any form of Event handling.
2415
2416	=cut
2417
2418	sub fork_call(&@) {
2419	my ($cb, @args) = @_;
2420
2421	# socketpair my $fh1, my $fh2, Socket::AF_UNIX, Socket::SOCK_STREAM, Socket::PF_UNSPEC
2422	# or die "socketpair: $!";
2423	pipe my $fh1, my $fh2
2424	or die "pipe: $!";
2425
2426	if (my $pid = fork) {
2427	close $fh2;
2428
2429	my $res = (Coro::Handle::unblock $fh1)->readline (undef);
2430	$res = Coro::Storable::thaw $res;
2431
2432	waitpid $pid, 0; # should not block anymore, we expect the child to simply behave
2433
2434	die $$res unless "ARRAY" eq ref $res;
2435
2436	return wantarray ? @$res : $res->[-1];
2437	} else {
2438	local $SIG{__WARN__};
2439	eval {
2440	local $SIG{__DIE__};
2441	close $fh1;
2442
2443	my @res = eval { $cb->(@args) };
2444	syswrite $fh2, Coro::Storable::freeze +($@ ? \"$@" : \@res);
2445	};
2446
2447	warn $@ if $@;
2448	_exit 0;
2449	}
2450	}
2451
2452
2453
2454	#############################################################################
2455	# the server's init and main functions	3180	# the server's init and main functions
2456		3181
2457	sub load_facedata($) {	3182	sub load_facedata($) {
2458	my ($path) = @_;	3183	my ($path) = @_;
		3184
		3185	# HACK to clear player env face cache, we need some signal framework
		3186	# for this (global event?)
		3187	%ext::player_env::MUSIC_FACE_CACHE = ();
		3188
		3189	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2459		3190
2460	warn "loading facedata from $path\n";	3191	warn "loading facedata from $path\n";
2461		3192
2462	my $facedata;	3193	my $facedata;
2463	0 < aio_load $path, $facedata	3194	0 < aio_load $path, $facedata
…		…
2466	$facedata = Coro::Storable::thaw $facedata;	3197	$facedata = Coro::Storable::thaw $facedata;
2467		3198
2468	$facedata->{version} == 2	3199	$facedata->{version} == 2
2469	or cf::cleanup "$path: version mismatch, cannot proceed.";	3200	or cf::cleanup "$path: version mismatch, cannot proceed.";
2470		3201
		3202	# patch in the exptable
		3203	$facedata->{resource}{"res/exp_table"} = {
		3204	type => FT_RSRC,
		3205	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3206	};
		3207	cf::cede_to_tick;
		3208
2471	{	3209	{
2472	my $faces = $facedata->{faceinfo};	3210	my $faces = $facedata->{faceinfo};
2473		3211
2474	while (my ($face, $info) = each %$faces) {	3212	while (my ($face, $info) = each %$faces) {
2475	my $idx = (cf::face::find $face) || cf::face::alloc $face;	3213	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3214
2476	cf::face::set $idx, $info->{visibility}, $info->{magicmap};	3215	cf::face::set_visibility $idx, $info->{visibility};
		3216	cf::face::set_magicmap $idx, $info->{magicmap};
2477	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};	3217	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2478	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};	3218	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2479	Coro::cede;	3219
		3220	cf::cede_to_tick;
2480	}	3221	}
2481		3222
2482	while (my ($face, $info) = each %$faces) {	3223	while (my ($face, $info) = each %$faces) {
2483	next unless $info->{smooth};	3224	next unless $info->{smooth};
		3225
2484	my $idx = cf::face::find $face	3226	my $idx = cf::face::find $face
2485	or next;	3227	or next;
		3228
2486	if (my $smooth = cf::face::find $info->{smooth}) {	3229	if (my $smooth = cf::face::find $info->{smooth}) {
		3230	cf::face::set_smooth $idx, $smooth;
2487	cf::face::set_smooth $idx, $smooth, $info->{smoothlevel};	3231	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
2488	} else {	3232	} else {
2489	warn "smooth face '$info->{smooth}' not found for face '$face'";	3233	warn "smooth face '$info->{smooth}' not found for face '$face'";
2490	}	3234	}
2491	Coro::cede;	3235
		3236	cf::cede_to_tick;
2492	}	3237	}
2493	}	3238	}
2494		3239
2495	{	3240	{
2496	my $anims = $facedata->{animinfo};	3241	my $anims = $facedata->{animinfo};
2497		3242
2498	while (my ($anim, $info) = each %$anims) {	3243	while (my ($anim, $info) = each %$anims) {
2499	cf::anim::set $anim, $info->{frames}, $info->{facings};	3244	cf::anim::set $anim, $info->{frames}, $info->{facings};
2500	Coro::cede;	3245	cf::cede_to_tick;
2501	}	3246	}
2502		3247
2503	cf::anim::invalidate_all; # d'oh	3248	cf::anim::invalidate_all; # d'oh
2504	}	3249	}
2505		3250
		3251	{
		3252	# TODO: for gcfclient pleasure, we should give resources
		3253	# that gcfclient doesn't grok a >10000 face index.
		3254	my $res = $facedata->{resource};
		3255
		3256	while (my ($name, $info) = each %$res) {
		3257	if (defined $info->{type}) {
		3258	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3259	my $data;
		3260
		3261	if ($info->{type} & 1) {
		3262	# prepend meta info
		3263
		3264	my $meta = $enc->encode ({
		3265	name => $name,
		3266	%{ $info->{meta} || {} },
		3267	});
		3268
		3269	$data = pack "(w/a*)*", $meta, $info->{data};
		3270	} else {
		3271	$data = $info->{data};
		3272	}
		3273
		3274	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3275	cf::face::set_type $idx, $info->{type};
		3276	} else {
		3277	$RESOURCE{$name} = $info;
		3278	}
		3279
		3280	cf::cede_to_tick;
		3281	}
		3282	}
		3283
		3284	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3285
2506	1	3286	1
2507	}	3287	}
2508		3288
		3289	cf::global->attach (on_resource_update => sub {
		3290	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3291	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3292
		3293	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3294	my $sound = $soundconf->{compat}[$_]
		3295	or next;
		3296
		3297	my $face = cf::face::find "sound/$sound->[1]";
		3298	cf::sound::set $sound->[0] => $face;
		3299	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3300	}
		3301
		3302	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3303	my $face = cf::face::find "sound/$v";
		3304	cf::sound::set $k => $face;
		3305	}
		3306	}
		3307	});
		3308
		3309	register_exticmd fx_want => sub {
		3310	my ($ns, $want) = @_;
		3311
		3312	while (my ($k, $v) = each %$want) {
		3313	$ns->fx_want ($k, $v);
		3314	}
		3315	};
		3316
		3317	sub load_resource_file($) {
		3318	my $guard = lock_acquire "load_resource_file";
		3319
		3320	my $status = load_resource_file_ $_[0];
		3321	get_slot 0.1, 100;
		3322	cf::arch::commit_load;
		3323
		3324	$status
		3325	}
		3326
2509	sub reload_regions {	3327	sub reload_regions {
		3328	# HACK to clear player env face cache, we need some signal framework
		3329	# for this (global event?)
		3330	%ext::player_env::MUSIC_FACE_CACHE = ();
		3331
2510	load_resource_file "$MAPDIR/regions"	3332	load_resource_file "$MAPDIR/regions"
2511	or die "unable to load regions file\n";	3333	or die "unable to load regions file\n";
		3334
		3335	for (cf::region::list) {
		3336	$_->{match} = qr/$_->{match}/
		3337	if exists $_->{match};
		3338	}
2512	}	3339	}
2513		3340
2514	sub reload_facedata {	3341	sub reload_facedata {
2515	load_facedata "$DATADIR/facedata"	3342	load_facedata "$DATADIR/facedata"
2516	or die "unable to load facedata\n";	3343	or die "unable to load facedata\n";
…		…
2527	}	3354	}
2528		3355
2529	sub reload_resources {	3356	sub reload_resources {
2530	warn "reloading resource files...\n";	3357	warn "reloading resource files...\n";
2531		3358
2532	reload_regions;
2533	reload_facedata;	3359	reload_facedata;
2534	reload_archetypes;	3360	reload_archetypes;
		3361	reload_regions;
2535	reload_treasures;	3362	reload_treasures;
2536		3363
2537	warn "finished reloading resource files\n";	3364	warn "finished reloading resource files\n";
2538	}	3365	}
2539		3366
2540	sub init {	3367	sub reload_config {
2541	reload_resources;
2542	}
2543
2544	sub cfg_load {
2545	open my $fh, "<:utf8", "$CONFDIR/config"	3368	open my $fh, "<:utf8", "$CONFDIR/config"
2546	or return;	3369	or return;
2547		3370
2548	local $/;	3371	local $/;
2549	*CFG = YAML::Syck::Load <$fh>;	3372	*CFG = YAML::Load <$fh>;
2550		3373
2551	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3374	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
2552		3375
2553	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};	3376	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
2554	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};	3377	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
…		…
2560	};	3383	};
2561	warn $@ if $@;	3384	warn $@ if $@;
2562	}	3385	}
2563	}	3386	}
2564		3387
		3388	sub pidfile() {
		3389	sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
		3390	or die "$PIDFILE: $!";
		3391	flock $fh, &Fcntl::LOCK_EX
		3392	or die "$PIDFILE: flock: $!";
		3393	$fh
		3394	}
		3395
		3396	# make sure only one server instance is running at any one time
		3397	sub atomic {
		3398	my $fh = pidfile;
		3399
		3400	my $pid = <$fh>;
		3401	kill 9, $pid if $pid > 0;
		3402
		3403	seek $fh, 0, 0;
		3404	print $fh $$;
		3405	}
		3406
		3407	sub main_loop {
		3408	warn "EV::loop starting\n";
		3409	if (1) {
		3410	EV::loop;
		3411	}
		3412	warn "EV::loop returned\n";
		3413	goto &main_loop unless $REALLY_UNLOOP;
		3414	}
		3415
2565	sub main {	3416	sub main {
		3417	cf::init_globals; # initialise logging
		3418
		3419	LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
		3420	LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
		3421	LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
		3422	LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
		3423
		3424	cf::init_experience;
		3425	cf::init_anim;
		3426	cf::init_attackmess;
		3427	cf::init_dynamic;
		3428
		3429	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
		3430
2566	# we must not ever block the main coroutine	3431	# we must not ever block the main coroutine
2567	local $Coro::idle = sub {	3432	local $Coro::idle = sub {
2568	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3433	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2569	(async {	3434	(async {
2570	Event::one_event;	3435	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3436	EV::loop EV::LOOP_ONESHOT;
2571	})->prio (Coro::PRIO_MAX);	3437	})->prio (Coro::PRIO_MAX);
2572	};	3438	};
2573		3439
2574	cfg_load;	3440	evthread_start IO::AIO::poll_fileno;
		3441
		3442	cf::sync_job {
		3443	reload_resources;
		3444	reload_config;
2575	db_init;	3445	db_init;
		3446
		3447	cf::load_settings;
		3448	cf::load_materials;
		3449	cf::init_uuid;
		3450	cf::init_signals;
		3451	cf::init_commands;
		3452	cf::init_skills;
		3453
		3454	cf::init_beforeplay;
		3455
		3456	atomic;
		3457
2576	load_extensions;	3458	load_extensions;
2577		3459
2578	$TICK_WATCHER->start;	3460	utime time, time, $RUNTIMEFILE;
2579	Event::loop;	3461
		3462	# no (long-running) fork's whatsoever before this point(!)
		3463	use POSIX ();
		3464	POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
		3465
		3466	(pop @POST_INIT)->(0) while @POST_INIT;
		3467	};
		3468
		3469	main_loop;
2580	}	3470	}
2581		3471
2582	#############################################################################	3472	#############################################################################
2583	# initialisation and cleanup	3473	# initialisation and cleanup
2584		3474
2585	# install some emergency cleanup handlers	3475	# install some emergency cleanup handlers
2586	BEGIN {	3476	BEGIN {
		3477	our %SIGWATCHER = ();
2587	for my $signal (qw(INT HUP TERM)) {	3478	for my $signal (qw(INT HUP TERM)) {
2588	Event->signal (	3479	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2589	reentrant => 0,
2590	data => WF_AUTOCANCEL,
2591	signal => $signal,
2592	prio => 0,
2593	cb => sub {
2594	cf::cleanup "SIG$signal";	3480	cf::cleanup "SIG$signal";
2595	},
2596	);	3481	};
		3482	}
		3483	}
		3484
		3485	sub write_runtime_sync {
		3486	# first touch the runtime file to show we are still running:
		3487	# the fsync below can take a very very long time.
		3488
		3489	IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
		3490
		3491	my $guard = cf::lock_acquire "write_runtime";
		3492
		3493	my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
		3494	or return;
		3495
		3496	my $value = $cf::RUNTIME + 90 + 10;
		3497	# 10 is the runtime save interval, for a monotonic clock
		3498	# 60 allows for the watchdog to kill the server.
		3499
		3500	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3501	and return;
		3502
		3503	# always fsync - this file is important
		3504	aio_fsync $fh
		3505	and return;
		3506
		3507	# touch it again to show we are up-to-date
		3508	aio_utime $fh, undef, undef;
		3509
		3510	close $fh
		3511	or return;
		3512
		3513	aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
		3514	and return;
		3515
		3516	warn "runtime file written.\n";
		3517
2597	}	3518	1
		3519	}
		3520
		3521	our $uuid_lock;
		3522	our $uuid_skip;
		3523
		3524	sub write_uuid_sync($) {
		3525	$uuid_skip ||= $_[0];
		3526
		3527	return if $uuid_lock;
		3528	local $uuid_lock = 1;
		3529
		3530	my $uuid = "$LOCALDIR/uuid";
		3531
		3532	my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
		3533	or return;
		3534
		3535	my $value = uuid_seq uuid_cur;
		3536
		3537	unless ($value) {
		3538	warn "cowardly refusing to write zero uuid value!\n";
		3539	return;
		3540	}
		3541
		3542	my $value = uuid_str $value + $uuid_skip;
		3543	$uuid_skip = 0;
		3544
		3545	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3546	and return;
		3547
		3548	# always fsync - this file is important
		3549	aio_fsync $fh
		3550	and return;
		3551
		3552	close $fh
		3553	or return;
		3554
		3555	aio_rename "$uuid~", $uuid
		3556	and return;
		3557
		3558	warn "uuid file written ($value).\n";
		3559
		3560	1
		3561
		3562	}
		3563
		3564	sub write_uuid($$) {
		3565	my ($skip, $sync) = @_;
		3566
		3567	$sync ? write_uuid_sync $skip
		3568	: async { write_uuid_sync $skip };
2598	}	3569	}
2599		3570
2600	sub emergency_save() {	3571	sub emergency_save() {
2601	my $freeze_guard = cf::freeze_mainloop;	3572	my $freeze_guard = cf::freeze_mainloop;
2602		3573
2603	warn "enter emergency perl save\n";	3574	warn "emergency_perl_save: enter\n";
2604		3575
2605	cf::sync_job {	3576	cf::sync_job {
		3577	# this is a trade-off: we want to be very quick here, so
		3578	# save all maps without fsync, and later call a global sync
		3579	# (which in turn might be very very slow)
		3580	local $USE_FSYNC = 0;
		3581
2606	# use a peculiar iteration method to avoid tripping on perl	3582	# use a peculiar iteration method to avoid tripping on perl
2607	# refcount bugs in for. also avoids problems with players	3583	# refcount bugs in for. also avoids problems with players
2608	# and maps saved/destroyed asynchronously.	3584	# and maps saved/destroyed asynchronously.
2609	warn "begin emergency player save\n";	3585	warn "emergency_perl_save: begin player save\n";
2610	for my $login (keys %cf::PLAYER) {	3586	for my $login (keys %cf::PLAYER) {
2611	my $pl = $cf::PLAYER{$login} or next;	3587	my $pl = $cf::PLAYER{$login} or next;
2612	$pl->valid or next;	3588	$pl->valid or next;
		3589	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2613	$pl->save;	3590	$pl->save;
2614	}	3591	}
2615	warn "end emergency player save\n";	3592	warn "emergency_perl_save: end player save\n";
2616		3593
2617	warn "begin emergency map save\n";	3594	warn "emergency_perl_save: begin map save\n";
2618	for my $path (keys %cf::MAP) {	3595	for my $path (keys %cf::MAP) {
2619	my $map = $cf::MAP{$path} or next;	3596	my $map = $cf::MAP{$path} or next;
2620	$map->valid or next;	3597	$map->valid or next;
2621	$map->save;	3598	$map->save;
2622	}	3599	}
2623	warn "end emergency map save\n";	3600	warn "emergency_perl_save: end map save\n";
2624		3601
2625	warn "begin emergency database checkpoint\n";	3602	warn "emergency_perl_save: begin database checkpoint\n";
2626	BDB::db_env_txn_checkpoint $DB_ENV;	3603	BDB::db_env_txn_checkpoint $DB_ENV;
2627	warn "end emergency database checkpoint\n";	3604	warn "emergency_perl_save: end database checkpoint\n";
		3605
		3606	warn "emergency_perl_save: begin write uuid\n";
		3607	write_uuid_sync 1;
		3608	warn "emergency_perl_save: end write uuid\n";
2628	};	3609	};
2629		3610
		3611	warn "emergency_perl_save: starting sync()\n";
		3612	IO::AIO::aio_sync sub {
		3613	warn "emergency_perl_save: finished sync()\n";
		3614	};
		3615
2630	warn "leave emergency perl save\n";	3616	warn "emergency_perl_save: leave\n";
2631	}	3617	}
2632		3618
2633	sub post_cleanup {	3619	sub post_cleanup {
2634	my ($make_core) = @_;	3620	my ($make_core) = @_;
2635		3621
2636	warn Carp::longmess "post_cleanup backtrace"	3622	warn Carp::longmess "post_cleanup backtrace"
2637	if $make_core;	3623	if $make_core;
		3624
		3625	my $fh = pidfile;
		3626	unlink $PIDFILE if <$fh> == $$;
		3627	}
		3628
		3629	# a safer delete_package, copied from Symbol
		3630	sub clear_package($) {
		3631	my $pkg = shift;
		3632
		3633	# expand to full symbol table name if needed
		3634	unless ($pkg =~ /^main::.*::$/) {
		3635	$pkg = "main$pkg" if $pkg =~ /^::/;
		3636	$pkg = "main::$pkg" unless $pkg =~ /^main::/;
		3637	$pkg .= '::' unless $pkg =~ /::$/;
		3638	}
		3639
		3640	my($stem, $leaf) = $pkg =~ m/(.*::)(\w+::)$/;
		3641	my $stem_symtab = *{$stem}{HASH};
		3642
		3643	defined $stem_symtab and exists $stem_symtab->{$leaf}
		3644	or return;
		3645
		3646	# clear all symbols
		3647	my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
		3648	for my $name (keys %$leaf_symtab) {
		3649	_gv_clear *{"$pkg$name"};
		3650	# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
		3651	}
		3652	warn "cleared package $pkg\n";#d#
2638	}	3653	}
2639		3654
2640	sub do_reload_perl() {	3655	sub do_reload_perl() {
2641	# can/must only be called in main	3656	# can/must only be called in main
2642	if ($Coro::current != $Coro::main) {	3657	if ($Coro::current != $Coro::main) {
2643	warn "can only reload from main coroutine";	3658	warn "can only reload from main coroutine";
2644	return;	3659	return;
2645	}	3660	}
2646		3661
		3662	return if $RELOAD++;
		3663
		3664	my $t1 = EV::time;
		3665
		3666	while ($RELOAD) {
2647	warn "reloading...";	3667	warn "reloading...";
2648		3668
2649	warn "entering sync_job";	3669	warn "entering sync_job";
2650		3670
2651	cf::sync_job {	3671	cf::sync_job {
2652	cf::write_runtime; # external watchdog should not bark	3672	cf::write_runtime_sync; # external watchdog should not bark
2653	cf::emergency_save;	3673	cf::emergency_save;
2654	cf::write_runtime; # external watchdog should not bark	3674	cf::write_runtime_sync; # external watchdog should not bark
2655		3675
2656	warn "syncing database to disk";	3676	warn "syncing database to disk";
2657	BDB::db_env_txn_checkpoint $DB_ENV;	3677	BDB::db_env_txn_checkpoint $DB_ENV;
2658		3678
2659	# if anything goes wrong in here, we should simply crash as we already saved	3679	# if anything goes wrong in here, we should simply crash as we already saved
2660		3680
2661	warn "cancelling all WF_AUTOCANCEL watchers";
2662	for (Event::all_watchers) {
2663	$_->cancel if $_->data & WF_AUTOCANCEL;
2664	}
2665
2666	warn "flushing outstanding aio requests";	3681	warn "flushing outstanding aio requests";
2667	for (;;) {
2668	BDB::flush;
2669	IO::AIO::flush;
2670	Coro::cede;
2671	last unless IO::AIO::nreqs || BDB::nreqs;	3682	while (IO::AIO::nreqs || BDB::nreqs) {
2672	warn "iterate...";	3683	Coro::EV::timer_once 0.01; # let the sync_job do it's thing
2673	}
2674
2675	++$RELOAD;
2676
2677	warn "cancelling all extension coros";
2678	$_->cancel for values %EXT_CORO;
2679	%EXT_CORO = ();
2680
2681	warn "removing commands";
2682	%COMMAND = ();
2683
2684	warn "removing ext commands";
2685	%EXTCMD = ();
2686
2687	warn "unloading/nuking all extensions";
2688	for my $pkg (@EXTS) {
2689	warn "... unloading $pkg";
2690
2691	if (my $cb = $pkg->can ("unload")) {
2692	eval {
2693	$cb->($pkg);
2694	1
2695	} or warn "$pkg unloaded, but with errors: $@";
2696	}	3684	}
2697		3685
2698	warn "... nuking $pkg";	3686	warn "cancelling all extension coros";
2699	Symbol::delete_package $pkg;	3687	$_->cancel for values %EXT_CORO;
2700	}	3688	%EXT_CORO = ();
2701		3689
2702	warn "unloading all perl modules loaded from $LIBDIR";	3690	warn "removing commands";
2703	while (my ($k, $v) = each %INC) {	3691	%COMMAND = ();
2704	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2705		3692
		3693	warn "removing ext/exti commands";
		3694	%EXTCMD = ();
		3695	%EXTICMD = ();
		3696
		3697	warn "unloading/nuking all extensions";
		3698	for my $pkg (@EXTS) {
2706	warn "... unloading $k";	3699	warn "... unloading $pkg";
2707	delete $INC{$k};
2708		3700
2709	$k =~ s/\.pm$//;
2710	$k =~ s/\//::/g;
2711
2712	if (my $cb = $k->can ("unload_module")) {	3701	if (my $cb = $pkg->can ("unload")) {
		3702	eval {
2713	$cb->();	3703	$cb->($pkg);
		3704	1
		3705	} or warn "$pkg unloaded, but with errors: $@";
		3706	}
		3707
		3708	warn "... clearing $pkg";
		3709	clear_package $pkg;
2714	}	3710	}
2715		3711
2716	Symbol::delete_package $k;	3712	warn "unloading all perl modules loaded from $LIBDIR";
		3713	while (my ($k, $v) = each %INC) {
		3714	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		3715
		3716	warn "... unloading $k";
		3717	delete $INC{$k};
		3718
		3719	$k =~ s/\.pm$//;
		3720	$k =~ s/\//::/g;
		3721
		3722	if (my $cb = $k->can ("unload_module")) {
		3723	$cb->();
		3724	}
		3725
		3726	clear_package $k;
2717	}	3727	}
2718		3728
2719	warn "getting rid of safe::, as good as possible";	3729	warn "getting rid of safe::, as good as possible";
2720	Symbol::delete_package "safe::$_"	3730	clear_package "safe::$_"
2721	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3731	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2722		3732
2723	warn "unloading cf.pm \"a bit\"";	3733	warn "unloading cf.pm \"a bit\"";
2724	delete $INC{"cf.pm"};	3734	delete $INC{"cf.pm"};
2725	delete $INC{"cf/pod.pm"};	3735	delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
2726		3736
2727	# don't, removes xs symbols, too,	3737	# don't, removes xs symbols, too,
2728	# and global variables created in xs	3738	# and global variables created in xs
2729	#Symbol::delete_package __PACKAGE__;	3739	#clear_package __PACKAGE__;
2730		3740
2731	warn "unload completed, starting to reload now";	3741	warn "unload completed, starting to reload now";
2732		3742
2733	warn "reloading cf.pm";	3743	warn "reloading cf.pm";
2734	require cf;	3744	require cf;
2735	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3745	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2736		3746
2737	warn "loading config and database again";	3747	warn "loading config and database again";
2738	cf::cfg_load;	3748	cf::reload_config;
2739		3749
2740	warn "loading extensions";	3750	warn "loading extensions";
2741	cf::load_extensions;	3751	cf::load_extensions;
2742		3752
		3753	if ($REATTACH_ON_RELOAD) {
2743	warn "reattaching attachments to objects/players";	3754	warn "reattaching attachments to objects/players";
2744	_global_reattach; # objects, sockets	3755	_global_reattach; # objects, sockets
2745	warn "reattaching attachments to maps";	3756	warn "reattaching attachments to maps";
2746	reattach $_ for values %MAP;	3757	reattach $_ for values %MAP;
2747	warn "reattaching attachments to players";	3758	warn "reattaching attachments to players";
2748	reattach $_ for values %PLAYER;	3759	reattach $_ for values %PLAYER;
		3760	}
2749		3761
		3762	warn "running post_init jobs";
		3763	(pop @POST_INIT)->(1) while @POST_INIT;
		3764
2750	warn "leaving sync_job";	3765	warn "leaving sync_job";
2751		3766
2752	1	3767	1
2753	} or do {	3768	} or do {
2754	warn $@;	3769	warn $@;
2755	warn "error while reloading, exiting.";	3770	cf::cleanup "error while reloading, exiting.";
2756	exit 1;
2757	};	3771	};
2758		3772
2759	warn "reloaded";	3773	warn "reloaded";
		3774	--$RELOAD;
		3775	}
		3776
		3777	$t1 = EV::time - $t1;
		3778	warn "reload completed in ${t1}s\n";
2760	};	3779	};
2761		3780
2762	our $RELOAD_WATCHER; # used only during reload	3781	our $RELOAD_WATCHER; # used only during reload
2763		3782
2764	sub reload_perl() {	3783	sub reload_perl() {
2765	# doing reload synchronously and two reloads happen back-to-back,	3784	# doing reload synchronously and two reloads happen back-to-back,
2766	# coro crashes during coro_state_free->destroy here.	3785	# coro crashes during coro_state_free->destroy here.
2767		3786
2768	$RELOAD_WATCHER ||= Event->timer (	3787	$RELOAD_WATCHER ||= cf::async {
2769	reentrant => 0,	3788	Coro::AIO::aio_wait cache_extensions;
2770	after => 0,	3789
2771	data => WF_AUTOCANCEL,	3790	$RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
2772	cb => sub {
2773	do_reload_perl;	3791	do_reload_perl;
2774	undef $RELOAD_WATCHER;	3792	undef $RELOAD_WATCHER;
2775	},	3793	};
2776	);	3794	};
2777	}	3795	}
2778		3796
2779	register_command "reload" => sub {	3797	register_command "reload" => sub {
2780	my ($who, $arg) = @_;	3798	my ($who, $arg) = @_;
2781		3799
2782	if ($who->flag (FLAG_WIZ)) {	3800	if ($who->flag (FLAG_WIZ)) {
2783	$who->message ("reloading server.");	3801	$who->message ("reloading server.");
		3802	async {
		3803	$Coro::current->{desc} = "perl_reload";
2784	async { reload_perl };	3804	reload_perl;
		3805	};
2785	}	3806	}
2786	};	3807	};
2787		3808
2788	unshift @INC, $LIBDIR;	3809	unshift @INC, $LIBDIR;
2789		3810
…		…
2791		3812
2792	our @WAIT_FOR_TICK;	3813	our @WAIT_FOR_TICK;
2793	our @WAIT_FOR_TICK_BEGIN;	3814	our @WAIT_FOR_TICK_BEGIN;
2794		3815
2795	sub wait_for_tick {	3816	sub wait_for_tick {
2796	return unless $TICK_WATCHER->is_active;
2797	return if $Coro::current == $Coro::main;	3817	return if tick_inhibit || $Coro::current == $Coro::main;
2798		3818
2799	my $signal = new Coro::Signal;	3819	my $signal = new Coro::Signal;
2800	push @WAIT_FOR_TICK, $signal;	3820	push @WAIT_FOR_TICK, $signal;
2801	$signal->wait;	3821	$signal->wait;
2802	}	3822	}
2803		3823
2804	sub wait_for_tick_begin {	3824	sub wait_for_tick_begin {
2805	return unless $TICK_WATCHER->is_active;
2806	return if $Coro::current == $Coro::main;	3825	return if tick_inhibit || $Coro::current == $Coro::main;
2807		3826
2808	my $signal = new Coro::Signal;	3827	my $signal = new Coro::Signal;
2809	push @WAIT_FOR_TICK_BEGIN, $signal;	3828	push @WAIT_FOR_TICK_BEGIN, $signal;
2810	$signal->wait;	3829	$signal->wait;
2811	}	3830	}
2812		3831
2813	$TICK_WATCHER = Event->timer (	3832	sub tick {
2814	reentrant => 0,
2815	parked => 1,
2816	prio => 0,
2817	at => $NEXT_TICK || $TICK,
2818	data => WF_AUTOCANCEL,
2819	cb => sub {
2820	if ($Coro::current != $Coro::main) {	3833	if ($Coro::current != $Coro::main) {
2821	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"	3834	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2822	unless ++$bug_warning > 10;	3835	unless ++$bug_warning > 10;
2823	return;	3836	return;
2824	}	3837	}
2825		3838
2826	$NOW = Event::time;
2827
2828	cf::server_tick; # one server iteration	3839	cf::server_tick; # one server iteration
2829		3840
2830	$RUNTIME += $TICK;
2831	$NEXT_TICK += $TICK;
2832
2833	if ($NOW >= $NEXT_RUNTIME_WRITE) {	3841	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2834	$NEXT_RUNTIME_WRITE = $NOW + 10;	3842	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2835	Coro::async_pool {	3843	Coro::async_pool {
		3844	$Coro::current->{desc} = "runtime saver";
2836	write_runtime	3845	write_runtime_sync
2837	or warn "ERROR: unable to write runtime file: $!";	3846	or warn "ERROR: unable to write runtime file: $!";
2838	};
2839	}	3847	};
		3848	}
2840		3849
2841	# my $AFTER = Event::time;
2842	# warn $AFTER - $NOW;#d#
2843
2844	# if we are delayed by four ticks or more, skip them all
2845	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2846
2847	$TICK_WATCHER->at ($NEXT_TICK);
2848	$TICK_WATCHER->start;
2849
2850	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {	3850	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
2851	$sig->send;	3851	$sig->send;
2852	}	3852	}
2853	while (my $sig = shift @WAIT_FOR_TICK) {	3853	while (my $sig = shift @WAIT_FOR_TICK) {
2854	$sig->send;	3854	$sig->send;
2855	}
2856
2857	_post_tick;
2858	},	3855	}
2859	);	3856
		3857	$LOAD = ($NOW - $TICK_START) / $TICK;
		3858	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3859
		3860	if (0) {
		3861	if ($NEXT_TICK) {
		3862	my $jitter = $TICK_START - $NEXT_TICK;
		3863	$JITTER = $JITTER * 0.75 + $jitter * 0.25;
		3864	warn "jitter $JITTER\n";#d#
		3865	}
		3866	}
		3867	}
2860		3868
2861	{	3869	{
2862	BDB::max_poll_time $TICK * 0.1;	3870	# configure BDB
2863	$BDB_POLL_WATCHER = Event->io (	3871
2864	reentrant => 0,
2865	fd => BDB::poll_fileno,
2866	poll => 'r',
2867	prio => 0,
2868	data => WF_AUTOCANCEL,
2869	cb => \&BDB::poll_cb,
2870	);
2871	BDB::min_parallel 8;	3872	BDB::min_parallel 8;
2872		3873	BDB::max_poll_reqs $TICK * 0.1;
2873	BDB::set_sync_prepare {	3874	$AnyEvent::BDB::WATCHER->priority (1);
2874	my $status;
2875	my $current = $Coro::current;
2876	(
2877	sub {
2878	$status = $!;
2879	$current->ready; undef $current;
2880	},
2881	sub {
2882	Coro::schedule while defined $current;
2883	$! = $status;
2884	},
2885	)
2886	};
2887		3875
2888	unless ($DB_ENV) {	3876	unless ($DB_ENV) {
2889	$DB_ENV = BDB::db_env_create;	3877	$DB_ENV = BDB::db_env_create;
		3878	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT);
		3879	$DB_ENV->set_flags (&BDB::LOG_AUTOREMOVE ) if BDB::VERSION v0, v4.7;
		3880	$DB_ENV->log_set_config (&BDB::LOG_AUTO_REMOVE) if BDB::VERSION v4.7;
		3881	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3882	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
2890		3883
2891	cf::sync_job {	3884	cf::sync_job {
2892	eval {	3885	eval {
2893	BDB::db_env_open	3886	BDB::db_env_open
2894	$DB_ENV,	3887	$DB_ENV,
…		…
2896	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN	3889	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
2897	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,	3890	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
2898	0666;	3891	0666;
2899		3892
2900	cf::cleanup "db_env_open($BDBDIR): $!" if $!;	3893	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2901
2902	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
2903	$DB_ENV->set_lk_detect;
2904	};	3894	};
2905		3895
2906	cf::cleanup "db_env_open(db): $@" if $@;	3896	cf::cleanup "db_env_open(db): $@" if $@;
2907	};	3897	};
2908	}	3898	}
		3899
		3900	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3901	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3902	};
		3903	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3904	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3905	};
		3906	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3907	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3908	};
2909	}	3909	}
2910		3910
2911	{	3911	{
		3912	# configure IO::AIO
		3913
2912	IO::AIO::min_parallel 8;	3914	IO::AIO::min_parallel 8;
2913
2914	undef $Coro::AIO::WATCHER;
2915	IO::AIO::max_poll_time $TICK * 0.1;	3915	IO::AIO::max_poll_time $TICK * 0.1;
2916	$AIO_POLL_WATCHER = Event->io (	3916	undef $AnyEvent::AIO::WATCHER;
2917	reentrant => 0,	3917	}
2918	data => WF_AUTOCANCEL,	3918
2919	fd => IO::AIO::poll_fileno,	3919	my $_log_backtrace;
2920	poll => 'r',	3920
2921	prio => 6,	3921	sub _log_backtrace {
2922	cb => \&IO::AIO::poll_cb,	3922	my ($msg, @addr) = @_;
2923	);	3923
		3924	$msg =~ s/\n//;
		3925
		3926	# limit the # of concurrent backtraces
		3927	if ($_log_backtrace < 2) {
		3928	++$_log_backtrace;
		3929	my $perl_bt = Carp::longmess $msg;
		3930	async {
		3931	$Coro::current->{desc} = "abt $msg";
		3932
		3933	my @bt = fork_call {
		3934	@addr = map { sprintf "%x", $_ } @addr;
		3935	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3936	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3937	or die "addr2line: $!";
		3938
		3939	my @funcs;
		3940	my @res = <$fh>;
		3941	chomp for @res;
		3942	while (@res) {
		3943	my ($func, $line) = splice @res, 0, 2, ();
		3944	push @funcs, "[$func] $line";
		3945	}
		3946
		3947	@funcs
		3948	};
		3949
		3950	LOG llevInfo, "[ABT] $perl_bt\n";
		3951	LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
		3952	LOG llevInfo, "[ABT] $_\n" for @bt;
		3953	--$_log_backtrace;
		3954	};
		3955	} else {
		3956	LOG llevInfo, "[ABT] $msg\n";
		3957	LOG llevInfo, "[ABT] [suppressed]\n";
		3958	}
2924	}	3959	}
2925		3960
2926	# load additional modules	3961	# load additional modules
2927	use cf::pod;	3962	require "cf/$_.pm" for @EXTRA_MODULES;
2928		3963
2929	END { cf::emergency_save }	3964	END { cf::emergency_save }
2930		3965
2931	1	3966	1
2932		3967

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