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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.161 by root, Thu Jan 11 00:16:58 2007 UTC vs.
Revision 1.391 by root, Fri Oct 26 04:22:05 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
8	use Storable;	8	use Socket;
		9	use Event;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
		13	use Storable ();
12		14
13	use Coro 3.3 ();	15	use Coro 4.1 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
		24	use Coro::Util ();
19		25
		26	use JSON::XS ();
		27	use BDB ();
20	use Data::Dumper;	28	use Data::Dumper;
21	use Digest::MD5;	29	use Digest::MD5;
22	use Fcntl;	30	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.51 ();
25	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
26		36
		37	# configure various modules to our taste
		38	#
		39	$Storable::canonical = 1; # reduce rsync transfers
		40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		42
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	43	$Event::Eval = 1; # no idea why this is required, but it is
28
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		44
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	45	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
33		47
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	48	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		49
		50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		51
36	our %COMMAND = ();	52	our %COMMAND = ();
37	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
38		54
39	our @EXTS = (); # list of extension package names	55	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	58	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	59	our %EXT_MAP = (); # pluggable maps
43		60
		61	our $RELOAD; # number of reloads so far
44	our @EVENT;	62	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		63
47	our $TICK = MAX_TIME * 1e-6;	64	our $CONFDIR = confdir;
		65	our $DATADIR = datadir;
		66	our $LIBDIR = "$DATADIR/ext";
		67	our $PODDIR = "$DATADIR/pod";
		68	our $MAPDIR = "$DATADIR/" . mapdir;
		69	our $LOCALDIR = localdir;
		70	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		71	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		72	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		73	our $RANDOMDIR = "$LOCALDIR/random";
		74	our $BDBDIR = "$LOCALDIR/db";
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
49	our $NEXT_TICK;	80	our $NEXT_TICK;
50	our $NOW;	81	our $NOW;
		82	our $USE_FSYNC = 1; # use fsync to write maps - default off
		83
		84	our $BDB_POLL_WATCHER;
		85	our $BDB_DEADLOCK_WATCHER;
		86	our $BDB_CHECKPOINT_WATCHER;
		87	our $BDB_TRICKLE_WATCHER;
		88	our $DB_ENV;
51		89
52	our %CFG;	90	our %CFG;
53		91
54	our $UPTIME; $UPTIME ||= time;	92	our $UPTIME; $UPTIME ||= time;
55	our $RUNTIME;	93	our $RUNTIME;
56		94
57	our %PLAYER; # all users	95	our (%PLAYER, %PLAYER_LOADING); # all users
58	our %MAP; # all maps	96	our (%MAP, %MAP_LOADING ); # all maps
59	our $LINK_MAP; # the special {link} map	97	our $LINK_MAP; # the special {link} map, which is always available
60	our $RANDOM_MAPS = cf::localdir . "/random";
61		98
62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	99	# used to convert map paths into valid unix filenames by replacing / by ∕
63	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	100	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		101
		102	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		103	our $LOADAVG; # same thing, but with alpha-smoothing
		104	our $tick_start; # for load detecting purposes
64		105
65	binmode STDOUT;	106	binmode STDOUT;
66	binmode STDERR;	107	binmode STDERR;
67		108
68	# read virtual server time, if available	109	# read virtual server time, if available
69	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
70	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
71	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
72	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
73	}	114	}
74		115
75	mkdir cf::localdir;	116	mkdir $_
76	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
77	mkdir cf::localdir . "/" . cf::tmpdir;
78	mkdir cf::localdir . "/" . cf::uniquedir;
79	mkdir $RANDOM_MAPS;
80		118
81	# a special map that is always available
82	our $LINK_MAP;
83	our $EMERGENCY_POSITION;	119	our $EMERGENCY_POSITION;
		120
		121	sub cf::map::normalise;
84		122
85	#############################################################################	123	#############################################################################
86		124
87	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
88		126
…		…
95	=item $cf::RUNTIME	133	=item $cf::RUNTIME
96		134
97	The time this server has run, starts at 0 and is increased by $cf::TICK on	135	The time this server has run, starts at 0 and is increased by $cf::TICK on
98	every server tick.	136	every server tick.
99		137
100	=item $cf::LIBDIR	138	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		139	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		140	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
101		141
102	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
103	be found. It will be added to C<@INC> automatically.	143	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		144	unique-items directory, player file directory, random maps directory and
		145	database environment.
104		146
105	=item $cf::NOW	147	=item $cf::NOW
106		148
107	The time of the last (current) server tick.	149	The time of the last (current) server tick.
108		150
109	=item $cf::TICK	151	=item $cf::TICK
110		152
111	The interval between server ticks, in seconds.	153	The interval between server ticks, in seconds.
		154
		155	=item $cf::LOADAVG
		156
		157	The current CPU load on the server (alpha-smoothed), as a value between 0
		158	(none) and 1 (overloaded), indicating how much time is spent on processing
		159	objects per tick. Healthy values are < 0.5.
		160
		161	=item $cf::LOAD
		162
		163	The raw value load value from the last tick.
112		164
113	=item %cf::CFG	165	=item %cf::CFG
114		166
115	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/crossfire/config>, or
116	from wherever your confdir points to.	168	from wherever your confdir points to.
117		169
118	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	170	=item cf::wait_for_tick, cf::wait_for_tick_begin
119		171
120	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	172	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
121	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	173	returns directly I<after> the tick processing (and consequently, can only wake one process
122	processing has been done. Call C<< ->wait >> on them to maximise the	174	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
123	window of cpu time available, or simply to synchronise to the server tick.	175
		176	=item @cf::INVOKE_RESULTS
		177
		178	This array contains the results of the last C<invoke ()> call. When
		179	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		180	that call.
124		181
125	=back	182	=back
126		183
127	=cut	184	=cut
128		185
129	BEGIN {	186	BEGIN {
130	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
131	my $msg = join "", @_;	188	my $msg = join "", @_;
132	utf8::encode $msg;
133		189
134	$msg .= "\n"	190	$msg .= "\n"
135	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
136		194
137	LOG llevError, $msg;	195	LOG llevError, $msg;
138	};	196	};
139	}	197	}
140		198
141	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
142	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
143	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
144	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
145	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	203	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		204	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
146	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	205	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
147		206
148	# we bless all objects into (empty) derived classes to force a method lookup	207	# we bless all objects into (empty) derived classes to force a method lookup
149	# within the Safe compartment.	208	# within the Safe compartment.
150	for my $pkg (qw(	209	for my $pkg (qw(
151	cf::global cf::attachable	210	cf::global cf::attachable
…		…
159	}	218	}
160		219
161	$Event::DIED = sub {	220	$Event::DIED = sub {
162	warn "error in event callback: @_";	221	warn "error in event callback: @_";
163	};	222	};
		223
		224	#############################################################################
164		225
165	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
166		227
167	=over 4	228	=over 4
168		229
…		…
187	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	248	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
188	$d	249	$d
189	} || "[unable to dump $_[0]: '$@']";	250	} || "[unable to dump $_[0]: '$@']";
190	}	251	}
191		252
192	use JSON::Syck (); # TODO# replace by JSON::PC once working
193
194	=item $ref = cf::from_json $json	253	=item $ref = cf::from_json $json
195		254
196	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
197		256
198	=cut
199
200	sub from_json($) {
201	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
202	JSON::Syck::Load $_[0]
203	}
204
205	=item $json = cf::to_json $ref	257	=item $json = cf::to_json $ref
206		258
207	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
208		260
209	=cut	261	=cut
210		262
211	sub to_json($) {	263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
212	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	264
213	JSON::Syck::Dump $_[0]	265	sub to_json ($) { $json_coder->encode ($_[0]) }
214	}	266	sub from_json ($) { $json_coder->decode ($_[0]) }
215		267
216	=item cf::lock_wait $string	268	=item cf::lock_wait $string
217		269
218	Wait until the given lock is available. See cf::lock_acquire.	270	Wait until the given lock is available. See cf::lock_acquire.
219		271
…		…
222	Wait until the given lock is available and then acquires it and returns	274	Wait until the given lock is available and then acquires it and returns
223	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	275	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
224	for example when the coroutine gets canceled), the lock is automatically	276	for example when the coroutine gets canceled), the lock is automatically
225	returned.	277	returned.
226		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
227	Lock names should begin with a unique identifier (for example, cf::map::find	282	Lock names should begin with a unique identifier (for example, cf::map::find
228	uses map_find and cf::map::load uses map_load).	283	uses map_find and cf::map::load uses map_load).
229		284
		285	=item $locked = cf::lock_active $string
		286
		287	Return true if the lock is currently active, i.e. somebody has locked it.
		288
230	=cut	289	=cut
231		290
232	our %LOCK;	291	our %LOCK;
		292	our %LOCKER;#d#
233		293
234	sub lock_wait($) {	294	sub lock_wait($) {
235	my ($key) = @_;	295	my ($key) = @_;
		296
		297	if ($LOCKER{$key} == $Coro::current) {#d#
		298	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		299	return;#d#
		300	}#d#
236		301
237	# wait for lock, if any	302	# wait for lock, if any
238	while ($LOCK{$key}) {	303	while ($LOCK{$key}) {
239	push @{ $LOCK{$key} }, $Coro::current;	304	push @{ $LOCK{$key} }, $Coro::current;
240	Coro::schedule;	305	Coro::schedule;
…		…
246		311
247	# wait, to be sure we are not locked	312	# wait, to be sure we are not locked
248	lock_wait $key;	313	lock_wait $key;
249		314
250	$LOCK{$key} = [];	315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
251		317
252	Coro::guard {	318	Coro::guard {
		319	delete $LOCKER{$key};#d#
253	# wake up all waiters, to be on the safe side	320	# wake up all waiters, to be on the safe side
254	$_->ready for @{ delete $LOCK{$key} };	321	$_->ready for @{ delete $LOCK{$key} };
255	}	322	}
256	}	323	}
257		324
		325	sub lock_active($) {
		326	my ($key) = @_;
		327
		328	! ! $LOCK{$key}
		329	}
		330
258	sub freeze_mainloop {	331	sub freeze_mainloop {
259	return unless $TICK_WATCHER->is_active;	332	return unless $TICK_WATCHER->is_active;
260		333
261	my $guard = Coro::guard { $TICK_WATCHER->start };	334	my $guard = Coro::guard {
		335	$TICK_WATCHER->start;
		336	};
262	$TICK_WATCHER->stop;	337	$TICK_WATCHER->stop;
263	$guard	338	$guard
		339	}
		340
		341	=item cf::get_slot $time[, $priority[, $name]]
		342
		343	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		344	This call blocks and returns only when you have at least C<$time> seconds
		345	of cpu time till the next tick. The slot is only valid till the next cede.
		346
		347	The optional C<$name> can be used to identify the job to run. It might be
		348	used for statistical purposes and should identify the same time-class.
		349
		350	Useful for short background jobs.
		351
		352	=cut
		353
		354	our @SLOT_QUEUE;
		355	our $SLOT_QUEUE;
		356
		357	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		358	$SLOT_QUEUE = Coro::async {
		359	$Coro::current->desc ("timeslot manager");
		360
		361	my $signal = new Coro::Signal;
		362
		363	while () {
		364	next_job:
		365	my $avail = cf::till_tick;
		366	if ($avail > 0.01) {
		367	for (0 .. $#SLOT_QUEUE) {
		368	if ($SLOT_QUEUE[$_][0] < $avail) {
		369	my $job = splice @SLOT_QUEUE, $_, 1, ();
		370	$job->[2]->send;
		371	Coro::cede;
		372	goto next_job;
		373	}
		374	}
		375	}
		376
		377	if (@SLOT_QUEUE) {
		378	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		379	push @cf::WAIT_FOR_TICK, $signal;
		380	$signal->wait;
		381	} else {
		382	Coro::schedule;
		383	}
		384	}
		385	};
		386
		387	sub get_slot($;$$) {
		388	my ($time, $pri, $name) = @_;
		389
		390	$time = $TICK * .6 if $time > $TICK * .6;
		391	my $sig = new Coro::Signal;
		392
		393	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		394	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		395	$SLOT_QUEUE->ready;
		396	$sig->wait;
264	}	397	}
265		398
266	=item cf::async { BLOCK }	399	=item cf::async { BLOCK }
267		400
268	Currently the same as Coro::async_pool, meaning you cannot use	401	Currently the same as Coro::async_pool, meaning you cannot use
…		…
273		406
274	BEGIN { *async = \&Coro::async_pool }	407	BEGIN { *async = \&Coro::async_pool }
275		408
276	=item cf::sync_job { BLOCK }	409	=item cf::sync_job { BLOCK }
277		410
278	The design of crossfire+ requires that the main coro ($Coro::main) is	411	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
279	always able to handle events or runnable, as crossfire+ is only partly	412	is always able to handle events or runnable, as Crossfire TRT is only
280	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	413	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		414	acceptable.
281		415
282	If it must be done, put the blocking parts into C<sync_job>. This will run	416	If it must be done, put the blocking parts into C<sync_job>. This will run
283	the given BLOCK in another coroutine while waiting for the result. The	417	the given BLOCK in another coroutine while waiting for the result. The
284	server will be frozen during this time, so the block should either finish	418	server will be frozen during this time, so the block should either finish
285	fast or be very important.	419	fast or be very important.
…		…
288		422
289	sub sync_job(&) {	423	sub sync_job(&) {
290	my ($job) = @_;	424	my ($job) = @_;
291		425
292	if ($Coro::current == $Coro::main) {	426	if ($Coro::current == $Coro::main) {
		427	my $time = Event::time;
		428
293	# this is the main coro, too bad, we have to block	429	# this is the main coro, too bad, we have to block
294	# till the operation succeeds, freezing the server :/	430	# till the operation succeeds, freezing the server :/
295		431
		432	LOG llevError, Carp::longmess "sync job";#d#
		433
296	# TODO: use suspend/resume instead	434	# TODO: use suspend/resume instead
297	# (but this is cancel-safe)	435	# (but this is cancel-safe)
298	my $freeze_guard = freeze_mainloop;	436	my $freeze_guard = freeze_mainloop;
299		437
300	my $busy = 1;	438	my $busy = 1;
301	my @res;	439	my @res;
302		440
303	(async {	441	(async {
		442	$Coro::current->desc ("sync job coro");
304	@res = eval { $job->() };	443	@res = eval { $job->() };
305	warn $@ if $@;	444	warn $@ if $@;
306	undef $busy;	445	undef $busy;
307	})->prio (Coro::PRIO_MAX);	446	})->prio (Coro::PRIO_MAX);
308		447
309	while ($busy) {	448	while ($busy) {
		449	if (Coro::nready) {
		450	Coro::cede_notself;
		451	} else {
310	Coro::cede or Event::one_event;	452	Event::one_event;
311	}	453	}
		454	}
		455
		456	$time = Event::time - $time;
		457
		458	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		459	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		460
		461	$tick_start += $time; # do not account sync jobs to server load
312		462
313	wantarray ? @res : $res[0]	463	wantarray ? @res : $res[0]
314	} else {	464	} else {
315	# we are in another coroutine, how wonderful, everything just works	465	# we are in another coroutine, how wonderful, everything just works
316		466
…		…
336	$EXT_CORO{$coro+0} = $coro;	486	$EXT_CORO{$coro+0} = $coro;
337		487
338	$coro	488	$coro
339	}	489	}
340		490
341	sub write_runtime {	491	=item fork_call { }, $args
342	my $runtime = cf::localdir . "/runtime";
343		492
344	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	493	Executes the given code block with the given arguments in a seperate
345	or return;	494	process, returning the results. Everything must be serialisable with
		495	Coro::Storable. May, of course, block. Note that the executed sub may
		496	never block itself or use any form of Event handling.
346		497
347	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	498	=cut
348	(aio_write $fh, 0, (length $value), $value, 0) <= 0
349	and return;
350		499
351	aio_fsync $fh	500	sub fork_call(&@) {
352	and return;	501	my ($cb, @args) = @_;
353		502
354	close $fh	503	# we seemingly have to make a local copy of the whole thing,
355	or return;	504	# otherwise perl prematurely frees the stuff :/
		505	# TODO: investigate and fix (likely this will be rather laborious)
356		506
357	aio_rename "$runtime~", $runtime	507	my @res = Coro::Util::fork_eval {
358	and return;	508	reset_signals;
		509	&$cb
		510	}, @args;
359		511
		512	wantarray ? @res : $res[-1]
		513	}
		514
		515	=item $value = cf::db_get $family => $key
		516
		517	Returns a single value from the environment database.
		518
		519	=item cf::db_put $family => $key => $value
		520
		521	Stores the given C<$value> in the family. It can currently store binary
		522	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		523
		524	=item $db = cf::db_table "name"
		525
		526	Create and/or open a new database table. The string must not be "db" and must be unique
		527	within each server.
		528
		529	=cut
		530
		531	sub db_table($) {
		532	my ($name) = @_;
		533	my $db = BDB::db_create $DB_ENV;
		534
		535	eval {
		536	$db->set_flags (BDB::CHKSUM);
		537
		538	utf8::encode $name;
		539	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		540	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		541	cf::cleanup "db_open(db): $!" if $!;
		542	};
		543	cf::cleanup "db_open(db): $@" if $@;
		544
		545	$db
		546	}
		547
		548	our $DB;
		549
		550	sub db_init {
		551	cf::sync_job {
		552	$DB ||= db_table "db";
		553	};
		554	}
		555
		556	sub db_get($$) {
		557	my $key = "$_[0]/$_[1]";
		558
		559	cf::sync_job {
		560	BDB::db_get $DB, undef, $key, my $data;
		561
		562	$! ? ()
		563	: $data
360	1	564	}
		565	}
		566
		567	sub db_put($$$) {
		568	BDB::dbreq_pri 4;
		569	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		570	}
		571
		572	=item cf::cache $id => [$paths...], $processversion => $process
		573
		574	Generic caching function that returns the value of the resource $id,
		575	caching and regenerating as required.
		576
		577	This function can block.
		578
		579	=cut
		580
		581	sub cache {
		582	my ($id, $src, $processversion, $process) = @_;
		583
		584	my $meta =
		585	join "\x00",
		586	$processversion,
		587	map {
		588	aio_stat $_
		589	and Carp::croak "$_: $!";
		590
		591	($_, (stat _)[7,9])
		592	} @$src;
		593
		594	my $dbmeta = db_get cache => "$id/meta";
		595	if ($dbmeta ne $meta) {
		596	# changed, we may need to process
		597
		598	my @data;
		599	my $md5;
		600
		601	for (0 .. $#$src) {
		602	0 <= aio_load $src->[$_], $data[$_]
		603	or Carp::croak "$src->[$_]: $!";
		604	}
		605
		606	# if processing is expensive, check
		607	# checksum first
		608	if (1) {
		609	$md5 =
		610	join "\x00",
		611	$processversion,
		612	map {
		613	cf::cede_to_tick;
		614	($src->[$_], Digest::MD5::md5_hex $data[$_])
		615	} 0.. $#$src;
		616
		617
		618	my $dbmd5 = db_get cache => "$id/md5";
		619	if ($dbmd5 eq $md5) {
		620	db_put cache => "$id/meta", $meta;
		621
		622	return db_get cache => "$id/data";
		623	}
		624	}
		625
		626	my $t1 = Time::HiRes::time;
		627	my $data = $process->(\@data);
		628	my $t2 = Time::HiRes::time;
		629
		630	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		631
		632	db_put cache => "$id/data", $data;
		633	db_put cache => "$id/md5" , $md5;
		634	db_put cache => "$id/meta", $meta;
		635
		636	return $data;
		637	}
		638
		639	db_get cache => "$id/data"
		640	}
		641
		642	=item cf::datalog type => key => value, ...
		643
		644	Log a datalog packet of the given type with the given key-value pairs.
		645
		646	=cut
		647
		648	sub datalog($@) {
		649	my ($type, %kv) = @_;
		650	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
361	}	651	}
362		652
363	=back	653	=back
364		654
365	=cut	655	=cut
366
367	#############################################################################
368
369	package cf::path;
370
371	use overload
372	'""' => \&as_string;
373
374	# used to convert map paths into valid unix filenames by repalcing / by ∕
375	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
376
377	sub register {
378	my ($pkg, $prefix) = @_;
379
380	$EXT_MAP{$prefix} = $pkg;
381	}
382
383	sub new {
384	my ($class, $path, $base) = @_;
385
386	return $path if ref $path;
387
388	my $self = {};
389
390	# {... are special paths that are not being touched
391	# ?xxx/... are special absolute paths
392	# ?random/... random maps
393	# /! non-realised random map exit
394	# /... normal maps
395	# ~/... per-player maps without a specific player (DO NOT USE)
396	# ~user/... per-player map of a specific user
397
398	$path =~ s/$PATH_SEP/\//go;
399
400	if ($path =~ /^{/) {
401	# fine as it is
402	} else {
403	if ($path =~ s{^~([^/]+)?}{}) {
404	# ~user
405	$self->{user_rel} = 1;
406
407	if (defined $1) {
408	$self->{user} = $1;
409	} elsif ($base =~ m{^~([^/]+)/}) {
410	$self->{user} = $1;
411	} else {
412	warn "cannot resolve user-relative path without user <$path,$base>\n";
413	}
414	} elsif ($path =~ s{^\?([^/]+)/}{}) {
415	# ?...
416	$self->{ext} = $1;
417	if (my $ext = $EXT_MAP{$1}) {
418	bless $self, $ext;
419	}
420	} elsif ($path =~ /^\//) {
421	# /...
422	# already absolute
423	} else {
424	# relative
425	$base =~ s{[^/]+/?$}{};
426	return $class->new ("$base/$path");
427	}
428
429	for ($path) {
430	redo if s{/\.?/}{/};
431	redo if s{/[^/]+/\.\./}{/};
432	}
433	}
434
435	$self->{path} = $path;
436
437	if ("HASH" eq ref $self) {
438	bless $self, $class;
439	} else {
440	$self->init;
441	}
442
443	for my $ext (values %EXT_MAP) {
444	if (my $subst = $ext->substitute ($self)) {
445	return $subst;
446	}
447	}
448
449	$self
450	}
451
452	sub init {
453	# nop
454	}
455
456	sub substitute {
457	()
458	}
459
460	# the name / primary key / in-game path
461	sub as_string {
462	my ($self) = @_;
463
464	$self->{user_rel} ? "~$self->{user}$self->{path}"
465	: $self->{ext} ? "?$self->{ext}/$self->{path}"
466	: $self->{path}
467	}
468
469	# the displayed name, this is a one way mapping
470	sub visible_name {
471	&as_string
472	}
473
474	# escape the /'s in the path
475	sub _escaped_path {
476	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
477	$path
478	}
479
480	# the original (read-only) location
481	sub load_path {
482	my ($self) = @_;
483
484	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
485	}
486
487	# the temporary/swap location
488	sub save_path {
489	my ($self) = @_;
490
491	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
492	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
493	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
494	}
495
496	# the unique path, undef == no special unique path
497	sub uniq_path {
498	my ($self) = @_;
499
500	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
501	}
502
503	# this is somewhat ugly, but style maps do need special treatment
504	sub is_style_map {
505	$_[0]{path} =~ m{^/styles/}
506	}
507
508	sub load_orig {
509	my ($self) = @_;
510
511	&cf::map::load_map_header ($self->load_path)
512	}
513
514	sub load_temp {
515	my ($self) = @_;
516
517	&cf::map::load_map_header ($self->save_path)
518	}
519
520	package cf;
521		656
522	#############################################################################	657	#############################################################################
523		658
524	=head2 ATTACHABLE OBJECTS	659	=head2 ATTACHABLE OBJECTS
525		660
…		…
527	attach callbacks/event handlers (a collection of which is called an "attachment")	662	attach callbacks/event handlers (a collection of which is called an "attachment")
528	to it. All such attachable objects support the following methods.	663	to it. All such attachable objects support the following methods.
529		664
530	In the following description, CLASS can be any of C<global>, C<object>	665	In the following description, CLASS can be any of C<global>, C<object>
531	C<player>, C<client> or C<map> (i.e. the attachable objects in	666	C<player>, C<client> or C<map> (i.e. the attachable objects in
532	crossfire+).	667	Crossfire TRT).
533		668
534	=over 4	669	=over 4
535		670
536	=item $attachable->attach ($attachment, key => $value...)	671	=item $attachable->attach ($attachment, key => $value...)
537		672
…		…
651	our @CB_TYPE = (); # registry for type (cf-object class) based events	786	our @CB_TYPE = (); # registry for type (cf-object class) based events
652	our @CB_MAP = ();	787	our @CB_MAP = ();
653		788
654	my %attachment;	789	my %attachment;
655		790
		791	sub cf::attachable::thawer_merge {
		792	# simply override everything except _meta
		793	local $_[0]{_meta};
		794	%{$_[0]} = %{$_[1]};
		795	}
		796
656	sub _attach_cb($$$$) {	797	sub _attach_cb($$$$) {
657	my ($registry, $event, $prio, $cb) = @_;	798	my ($registry, $event, $prio, $cb) = @_;
658		799
659	use sort 'stable';	800	use sort 'stable';
660		801
…		…
694	$registry = $CB_TYPE[$object_type] ||= [];	835	$registry = $CB_TYPE[$object_type] ||= [];
695		836
696	} elsif ($type eq "subtype") {	837	} elsif ($type eq "subtype") {
697	defined $object_type or Carp::croak "subtype specified without type";	838	defined $object_type or Carp::croak "subtype specified without type";
698	my $object_subtype = shift @arg;	839	my $object_subtype = shift @arg;
699	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	840	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
700		841
701	} elsif ($type eq "package") {	842	} elsif ($type eq "package") {
702	my $pkg = shift @arg;	843	my $pkg = shift @arg;
703		844
704	while (my ($name, $id) = each %cb_id) {	845	while (my ($name, $id) = each %cb_id) {
…		…
733	_attach $registry, $klass, @attach;	874	_attach $registry, $klass, @attach;
734	}	875	}
735		876
736	$obj->{$name} = \%arg;	877	$obj->{$name} = \%arg;
737	} else {	878	} else {
738	warn "object uses attachment '$name' that is not available, postponing.\n";	879	warn "object uses attachment '$name' which is not available, postponing.\n";
739	}	880	}
740		881
741	$obj->{_attachment}{$name} = undef;	882	$obj->{_attachment}{$name} = undef;
742	}	883	}
743		884
…		…
745	if (ref $_[0]) {	886	if (ref $_[0]) {
746	_object_attach @_;	887	_object_attach @_;
747	} else {	888	} else {
748	_attach shift->_attach_registry, @_;	889	_attach shift->_attach_registry, @_;
749	}	890	}
		891	_recalc_want;
750	};	892	};
751		893
752	# all those should be optimised	894	# all those should be optimised
753	sub cf::attachable::detach {	895	sub cf::attachable::detach {
754	my ($obj, $name) = @_;	896	my ($obj, $name) = @_;
…		…
757	delete $obj->{_attachment}{$name};	899	delete $obj->{_attachment}{$name};
758	reattach ($obj);	900	reattach ($obj);
759	} else {	901	} else {
760	Carp::croak "cannot, currently, detach class attachments";	902	Carp::croak "cannot, currently, detach class attachments";
761	}	903	}
		904	_recalc_want;
762	};	905	};
763		906
764	sub cf::attachable::attached {	907	sub cf::attachable::attached {
765	my ($obj, $name) = @_;	908	my ($obj, $name) = @_;
766		909
…		…
781	";	924	";
782	die if $@;	925	die if $@;
783	}	926	}
784		927
785	our $override;	928	our $override;
786	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	929	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
787		930
788	sub override {	931	sub override {
789	$override = 1;	932	$override = 1;
790	@invoke_results = ();	933	@INVOKE_RESULTS = (@_);
791	}	934	}
792		935
793	sub do_invoke {	936	sub do_invoke {
794	my $event = shift;	937	my $event = shift;
795	my $callbacks = shift;	938	my $callbacks = shift;
796		939
797	@invoke_results = ();	940	@INVOKE_RESULTS = ();
798		941
799	local $override;	942	local $override;
800		943
801	for (@$callbacks) {	944	for (@$callbacks) {
802	eval { &{$_->[1]} };	945	eval { &{$_->[1]} };
…		…
819		962
820	Generate an object-specific event with the given arguments.	963	Generate an object-specific event with the given arguments.
821		964
822	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	965	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
823	removed in future versions), and there is no public API to access override	966	removed in future versions), and there is no public API to access override
824	results (if you must, access C<@cf::invoke_results> directly).	967	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
825		968
826	=back	969	=back
827		970
828	=cut	971	=cut
829		972
830	#############################################################################	973	#############################################################################
831	# object support	974	# object support
		975
		976	sub _object_equal($$);
		977	sub _object_equal($$) {
		978	my ($a, $b) = @_;
		979
		980	return 0 unless (ref $a) eq (ref $b);
		981
		982	if ("HASH" eq ref $a) {
		983	my @ka = keys %$a;
		984	my @kb = keys %$b;
		985
		986	return 0 if @ka != @kb;
		987
		988	for (0 .. $#ka) {
		989	return 0 unless $ka[$_] eq $kb[$_];
		990	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		991	}
		992
		993	} elsif ("ARRAY" eq ref $a) {
		994
		995	return 0 if @$a != @$b;
		996
		997	for (0 .. $#$a) {
		998	return 0 unless _object_equal $a->[$_], $b->[$_];
		999	}
		1000
		1001	} elsif ($a ne $b) {
		1002	return 0;
		1003	}
		1004
		1005	1
		1006	}
		1007
		1008	our $SLOW_MERGES;#d#
		1009	sub _can_merge {
		1010	my ($ob1, $ob2) = @_;
		1011
		1012	++$SLOW_MERGES;#d#
		1013
		1014	# we do the slow way here
		1015	return _object_equal $ob1, $ob2
		1016	}
832		1017
833	sub reattach {	1018	sub reattach {
834	# basically do the same as instantiate, without calling instantiate	1019	# basically do the same as instantiate, without calling instantiate
835	my ($obj) = @_;	1020	my ($obj) = @_;
		1021
		1022	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
836		1023
837	my $registry = $obj->registry;	1024	my $registry = $obj->registry;
838		1025
839	@$registry = ();	1026	@$registry = ();
840		1027
…		…
881	sub object_freezer_save {	1068	sub object_freezer_save {
882	my ($filename, $rdata, $objs) = @_;	1069	my ($filename, $rdata, $objs) = @_;
883		1070
884	sync_job {	1071	sync_job {
885	if (length $$rdata) {	1072	if (length $$rdata) {
		1073	utf8::decode (my $decname = $filename);
886	warn sprintf "saving %s (%d,%d)\n",	1074	warn sprintf "saving %s (%d,%d)\n",
887	$filename, length $$rdata, scalar @$objs;	1075	$decname, length $$rdata, scalar @$objs;
888		1076
889	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1077	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
890	chmod SAVE_MODE, $fh;	1078	chmod SAVE_MODE, $fh;
891	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1079	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
892	aio_fsync $fh;	1080	aio_fsync $fh if $cf::USE_FSYNC;
893	close $fh;	1081	close $fh;
894		1082
895	if (@$objs) {	1083	if (@$objs) {
896	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1084	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
897	chmod SAVE_MODE, $fh;	1085	chmod SAVE_MODE, $fh;
898	my $data = Storable::nfreeze { version => 1, objs => $objs };	1086	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
899	aio_write $fh, 0, (length $data), $data, 0;	1087	aio_write $fh, 0, (length $data), $data, 0;
900	aio_fsync $fh;	1088	aio_fsync $fh if $cf::USE_FSYNC;
901	close $fh;	1089	close $fh;
902	aio_rename "$filename.pst~", "$filename.pst";	1090	aio_rename "$filename.pst~", "$filename.pst";
903	}	1091	}
904	} else {	1092	} else {
905	aio_unlink "$filename.pst";	1093	aio_unlink "$filename.pst";
…		…
911	}	1099	}
912	} else {	1100	} else {
913	aio_unlink $filename;	1101	aio_unlink $filename;
914	aio_unlink "$filename.pst";	1102	aio_unlink "$filename.pst";
915	}	1103	}
916	}	1104	};
917	}	1105	}
918		1106
919	sub object_freezer_as_string {	1107	sub object_freezer_as_string {
920	my ($rdata, $objs) = @_;	1108	my ($rdata, $objs) = @_;
921		1109
…		…
933	or return;	1121	or return;
934		1122
935	unless (aio_stat "$filename.pst") {	1123	unless (aio_stat "$filename.pst") {
936	(aio_load "$filename.pst", $av) >= 0	1124	(aio_load "$filename.pst", $av) >= 0
937	or return;	1125	or return;
		1126
938	$av = eval { (Storable::thaw $av)->{objs} };	1127	my $st = eval { Coro::Storable::thaw $av };
		1128	$av = $st->{objs};
939	}	1129	}
940		1130
		1131	utf8::decode (my $decname = $filename);
941	warn sprintf "loading %s (%d)\n",	1132	warn sprintf "loading %s (%d,%d)\n",
942	$filename, length $data, scalar @{$av || []};#d#	1133	$decname, length $data, scalar @{$av || []};
		1134
943	return ($data, $av);	1135	($data, $av)
944	}	1136	}
		1137
		1138	=head2 COMMAND CALLBACKS
		1139
		1140	=over 4
		1141
		1142	=cut
945		1143
946	#############################################################################	1144	#############################################################################
947	# command handling &c	1145	# command handling &c
948		1146
949	=item cf::register_command $name => \&callback($ob,$args);	1147	=item cf::register_command $name => \&callback($ob,$args);
…		…
962	push @{ $COMMAND{$name} }, [$caller, $cb];	1160	push @{ $COMMAND{$name} }, [$caller, $cb];
963	}	1161	}
964		1162
965	=item cf::register_extcmd $name => \&callback($pl,$packet);	1163	=item cf::register_extcmd $name => \&callback($pl,$packet);
966		1164
967	Register a callbackf ro execution when the client sends an extcmd packet.	1165	Register a callback for execution when the client sends an (synchronous)
		1166	extcmd packet. Ext commands will be processed in the order they are
		1167	received by the server, like other user commands. The first argument is
		1168	the logged-in player. Ext commands can only be processed after a player
		1169	has logged in successfully.
968		1170
969	If the callback returns something, it is sent back as if reply was being	1171	If the callback returns something, it is sent back as if reply was being
970	called.	1172	called.
971		1173
		1174	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1175
		1176	Register a callback for execution when the client sends an (asynchronous)
		1177	exticmd packet. Exti commands are processed by the server as soon as they
		1178	are received, i.e. out of order w.r.t. other commands. The first argument
		1179	is a client socket. Exti commands can be received anytime, even before
		1180	log-in.
		1181
		1182	If the callback returns something, it is sent back as if reply was being
		1183	called.
		1184
972	=cut	1185	=cut
973		1186
974	sub register_extcmd {	1187	sub register_extcmd {
975	my ($name, $cb) = @_;	1188	my ($name, $cb) = @_;
976		1189
977	$EXTCMD{$name} = $cb;	1190	$EXTCMD{$name} = $cb;
		1191	}
		1192
		1193	sub register_exticmd {
		1194	my ($name, $cb) = @_;
		1195
		1196	$EXTICMD{$name} = $cb;
978	}	1197	}
979		1198
980	cf::player->attach (	1199	cf::player->attach (
981	on_command => sub {	1200	on_command => sub {
982	my ($pl, $name, $params) = @_;	1201	my ($pl, $name, $params) = @_;
…		…
991	cf::override;	1210	cf::override;
992	},	1211	},
993	on_extcmd => sub {	1212	on_extcmd => sub {
994	my ($pl, $buf) = @_;	1213	my ($pl, $buf) = @_;
995		1214
996	my $msg = eval { from_json $buf };	1215	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
997		1216
998	if (ref $msg) {	1217	if (ref $msg) {
		1218	my ($type, $reply, @payload) =
		1219	"ARRAY" eq ref $msg
		1220	? @$msg
		1221	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1222
		1223	my @reply;
		1224
999	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1225	if (my $cb = $EXTCMD{$type}) {
1000	if (my %reply = $cb->($pl, $msg)) {	1226	@reply = $cb->($pl, @payload);
1001	$pl->ext_reply ($msg->{msgid}, %reply);
1002	}
1003	}	1227	}
		1228
		1229	$pl->ext_reply ($reply, @reply)
		1230	if $reply;
		1231
1004	} else {	1232	} else {
1005	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1233	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
1006	}	1234	}
1007		1235
1008	cf::override;	1236	cf::override;
1009	},	1237	},
1010	);	1238	);
1011		1239
1012	sub load_extension {
1013	my ($path) = @_;
1014
1015	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
1016	my $base = $1;
1017	my $pkg = $1;
1018	$pkg =~ s/[^[:word:]]/_/g;
1019	$pkg = "ext::$pkg";
1020
1021	warn "... loading '$path' into '$pkg'\n";
1022
1023	open my $fh, "<:utf8", $path
1024	or die "$path: $!";
1025
1026	my $source =
1027	"package $pkg; use strict; use utf8;\n"
1028	. "#line 1 \"$path\"\n{\n"
1029	. (do { local $/; <$fh> })
1030	. "\n};\n1";
1031
1032	eval $source
1033	or die $@ ? "$path: $@\n"
1034	: "extension disabled.\n";
1035
1036	push @EXTS, $pkg;
1037	}
1038
1039	sub load_extensions {	1240	sub load_extensions {
		1241	cf::sync_job {
		1242	my %todo;
		1243
1040	for my $ext (<$LIBDIR/*.ext>) {	1244	for my $path (<$LIBDIR/*.ext>) {
1041	next unless -r $ext;	1245	next unless -r $path;
1042	eval {	1246
1043	load_extension $ext;	1247	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1248	my $base = $1;
		1249	my $pkg = $1;
		1250	$pkg =~ s/[^[:word:]]/_/g;
		1251	$pkg = "ext::$pkg";
		1252
		1253	open my $fh, "<:utf8", $path
		1254	or die "$path: $!";
		1255
		1256	my $source = do { local $/; <$fh> };
		1257
		1258	my %ext = (
		1259	path => $path,
		1260	base => $base,
		1261	pkg => $pkg,
		1262	);
		1263
		1264	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1265	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1266
		1267	$ext{source} =
		1268	"package $pkg; use strict; use utf8;\n"
		1269	. "#line 1 \"$path\"\n{\n"
		1270	. $source
		1271	. "\n};\n1";
		1272
		1273	$todo{$base} = \%ext;
		1274	}
		1275
		1276	my %done;
		1277	while (%todo) {
		1278	my $progress;
		1279
		1280	while (my ($k, $v) = each %todo) {
		1281	for (split /,\s*/, $v->{meta}{depends}) {
		1282	goto skip
		1283	unless exists $done{$_};
		1284	}
		1285
		1286	warn "... loading '$k' into '$v->{pkg}'\n";
		1287
		1288	unless (eval $v->{source}) {
		1289	my $msg = $@ ? "$v->{path}: $@\n"
		1290	: "$v->{base}: extension inactive.\n";
		1291
		1292	if (exists $v->{meta}{mandatory}) {
		1293	warn $msg;
		1294	warn "mandatory extension failed to load, exiting.\n";
		1295	exit 1;
		1296	}
		1297
		1298	warn $msg;
		1299	}
		1300
		1301	$done{$k} = delete $todo{$k};
		1302	push @EXTS, $v->{pkg};
		1303	$progress = 1;
1044	1	1304	}
1045	} or warn "$ext not loaded: $@";	1305
		1306	skip:
		1307	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1308	unless $progress;
		1309	}
1046	}	1310	};
1047	}	1311	}
1048		1312
1049	#############################################################################	1313	#############################################################################
1050	# load/save/clean perl data associated with a map
1051		1314
1052	*cf::mapsupport::on_clean = sub {	1315	=back
1053	my ($map) = @_;
1054
1055	my $path = $map->tmpname;
1056	defined $path or return;
1057
1058	unlink "$path.pst";
1059	};
1060
1061	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1062
1063	#############################################################################
1064		1316
1065	=head2 CORE EXTENSIONS	1317	=head2 CORE EXTENSIONS
1066		1318
1067	Functions and methods that extend core crossfire objects.	1319	Functions and methods that extend core crossfire objects.
1068		1320
…		…
1074		1326
1075	=head3 cf::player	1327	=head3 cf::player
1076		1328
1077	=over 4	1329	=over 4
1078		1330
		1331	=item cf::player::num_playing
		1332
		1333	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1334
		1335	=cut
		1336
		1337	sub num_playing {
		1338	scalar grep
		1339	$_->ob->map
		1340	&& !$_->hidden
		1341	&& !$_->ob->flag (cf::FLAG_WIZ),
		1342	cf::player::list
		1343	}
		1344
1079	=item cf::player::find $login	1345	=item cf::player::find $login
1080		1346
1081	Returns the given player object, loading it if necessary (might block).	1347	Returns the given player object, loading it if necessary (might block).
1082		1348
1083	=cut	1349	=cut
1084		1350
1085	sub playerdir($) {	1351	sub playerdir($) {
1086	cf::localdir	1352	"$PLAYERDIR/"
1087	. "/"
1088	. cf::playerdir
1089	. "/"
1090	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1353	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1091	}	1354	}
1092		1355
1093	sub path($) {	1356	sub path($) {
1094	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1357	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1095		1358
1096	(playerdir $login) . "/$login.pl"	1359	(playerdir $login) . "/playerdata"
1097	}	1360	}
1098		1361
1099	sub find_active($) {	1362	sub find_active($) {
1100	$cf::PLAYER{$_[0]}	1363	$cf::PLAYER{$_[0]}
1101	and $cf::PLAYER{$_[0]}->active	1364	and $cf::PLAYER{$_[0]}->active
…		…
1104		1367
1105	sub exists($) {	1368	sub exists($) {
1106	my ($login) = @_;	1369	my ($login) = @_;
1107		1370
1108	$cf::PLAYER{$login}	1371	$cf::PLAYER{$login}
1109	or cf::sync_job { !aio_stat $login }	1372	or cf::sync_job { !aio_stat path $login }
1110	}	1373	}
1111		1374
1112	sub find($) {	1375	sub find($) {
1113	return $cf::PLAYER{$_[0]} || do {	1376	return $cf::PLAYER{$_[0]} || do {
1114	my $login = $_[0];	1377	my $login = $_[0];
1115		1378
1116	my $guard = cf::lock_acquire "user_find:$login";	1379	my $guard = cf::lock_acquire "user_find:$login";
1117		1380
1118	$cf::PLAYER{$_[0]} || do {	1381	$cf::PLAYER{$_[0]} || do {
1119	my $pl = load_pl path $login	1382	# rename old playerfiles to new ones
		1383	#TODO: remove when no longer required
		1384	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1385	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1386	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1387	aio_unlink +(playerdir $login) . "/$login.pl";
		1388
		1389	my $f = new_from_file cf::object::thawer path $login
1120	or return;	1390	or return;
		1391
		1392	my $pl = cf::player::load_pl $f
		1393	or return;
		1394	local $cf::PLAYER_LOADING{$login} = $pl;
		1395	$f->resolve_delayed_derefs;
1121	$cf::PLAYER{$login} = $pl	1396	$cf::PLAYER{$login} = $pl
1122	}	1397	}
1123	}	1398	}
1124	}	1399	}
1125		1400
…		…
1135		1410
1136	aio_mkdir playerdir $pl, 0770;	1411	aio_mkdir playerdir $pl, 0770;
1137	$pl->{last_save} = $cf::RUNTIME;	1412	$pl->{last_save} = $cf::RUNTIME;
1138		1413
1139	$pl->save_pl ($path);	1414	$pl->save_pl ($path);
1140	Coro::cede;	1415	cf::cede_to_tick;
1141	}	1416	}
1142		1417
1143	sub new($) {	1418	sub new($) {
1144	my ($login) = @_;	1419	my ($login) = @_;
1145		1420
…		…
1151	$cf::PLAYER{$login} = $self;	1426	$cf::PLAYER{$login} = $self;
1152		1427
1153	$self	1428	$self
1154	}	1429	}
1155		1430
		1431	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1432
		1433	=cut
		1434
		1435	sub send_msg {
		1436	my $ns = shift->ns
		1437	or return;
		1438	$ns->send_msg (@_);
		1439	}
		1440
1156	=item $pl->quit_character	1441	=item $pl->quit_character
1157		1442
1158	Nukes the player without looking back. If logged in, the connection will	1443	Nukes the player without looking back. If logged in, the connection will
1159	be destroyed. May block for a long time.	1444	be destroyed. May block for a long time.
1160		1445
1161	=cut	1446	=cut
1162		1447
1163	sub quit_character {	1448	sub quit_character {
1164	my ($pl) = @_;	1449	my ($pl) = @_;
		1450
		1451	my $name = $pl->ob->name;
1165		1452
1166	$pl->{deny_save} = 1;	1453	$pl->{deny_save} = 1;
1167	$pl->password ("*"); # this should lock out the player until we nuked the dir	1454	$pl->password ("*"); # this should lock out the player until we nuked the dir
1168		1455
1169	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1456	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1174	my $path = playerdir $pl;	1461	my $path = playerdir $pl;
1175	my $temp = "$path~$cf::RUNTIME~deleting~";	1462	my $temp = "$path~$cf::RUNTIME~deleting~";
1176	aio_rename $path, $temp;	1463	aio_rename $path, $temp;
1177	delete $cf::PLAYER{$pl->ob->name};	1464	delete $cf::PLAYER{$pl->ob->name};
1178	$pl->destroy;	1465	$pl->destroy;
		1466
		1467	my $prefix = qr<^~\Q$name\E/>;
		1468
		1469	# nuke player maps
		1470	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1471
1179	IO::AIO::aio_rmtree $temp;	1472	IO::AIO::aio_rmtree $temp;
		1473	}
		1474
		1475	=item $pl->kick
		1476
		1477	Kicks a player out of the game. This destroys the connection.
		1478
		1479	=cut
		1480
		1481	sub kick {
		1482	my ($pl, $kicker) = @_;
		1483
		1484	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1485	$pl->killer ("kicked");
		1486	$pl->ns->destroy;
1180	}	1487	}
1181		1488
1182	=item cf::player::list_logins	1489	=item cf::player::list_logins
1183		1490
1184	Returns am arrayref of all valid playernames in the system, can take a	1491	Returns am arrayref of all valid playernames in the system, can take a
1185	while and may block, so not sync_job-capable, ever.	1492	while and may block, so not sync_job-capable, ever.
1186		1493
1187	=cut	1494	=cut
1188		1495
1189	sub list_logins {	1496	sub list_logins {
1190	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1497	my $dirs = aio_readdir $PLAYERDIR
1191	or return [];	1498	or return [];
1192		1499
1193	my @logins;	1500	my @logins;
1194		1501
1195	for my $login (@$dirs) {	1502	for my $login (@$dirs) {
		1503	my $path = path $login;
		1504
		1505	# a .pst is a dead give-away for a valid player
		1506	unless (-e "$path.pst") {
1196	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1507	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1197	aio_read $fh, 0, 512, my $buf, 0 or next;	1508	aio_read $fh, 0, 512, my $buf, 0 or next;
1198	$buf !~ /^password -------------$/m or next; # official not-valid tag	1509	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1510	}
1199		1511
1200	utf8::decode $login;	1512	utf8::decode $login;
1201	push @logins, $login;	1513	push @logins, $login;
1202	}	1514	}
1203		1515
1204	\@logins	1516	\@logins
1205	}	1517	}
1206		1518
1207	=item $player->maps	1519	=item $player->maps
1208		1520
1209	Returns an arrayref of cf::path's of all maps that are private for this	1521	Returns an arrayref of map paths that are private for this
1210	player. May block.	1522	player. May block.
1211		1523
1212	=cut	1524	=cut
1213		1525
1214	sub maps($) {	1526	sub maps($) {
1215	my ($pl) = @_;	1527	my ($pl) = @_;
		1528
		1529	$pl = ref $pl ? $pl->ob->name : $pl;
1216		1530
1217	my $files = aio_readdir playerdir $pl	1531	my $files = aio_readdir playerdir $pl
1218	or return;	1532	or return;
1219		1533
1220	my @paths;	1534	my @paths;
…		…
1222	for (@$files) {	1536	for (@$files) {
1223	utf8::decode $_;	1537	utf8::decode $_;
1224	next if /\.(?:pl|pst)$/;	1538	next if /\.(?:pl|pst)$/;
1225	next unless /^$PATH_SEP/o;	1539	next unless /^$PATH_SEP/o;
1226		1540
1227	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1541	push @paths, cf::map::normalise "~$pl/$_";
1228	}	1542	}
1229		1543
1230	\@paths	1544	\@paths
1231	}	1545	}
1232		1546
		1547	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1548
		1549	Expand crossfire pod fragments into protocol xml.
		1550
		1551	=cut
		1552
		1553	use re 'eval';
		1554
		1555	my $group;
		1556	my $interior; $interior = qr{
		1557	(?:
		1558	\ (.*?)\ (?{ $group = $^N })
		1559	| < (??{$interior}) >
		1560	)
		1561	}x;
		1562
		1563	sub expand_cfpod {
		1564	my ($self, $pod) = @_;
		1565
		1566	my $xml;
		1567
		1568	while () {
		1569	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?=[^<]) )+ )/xgcs) {
		1570	$group = $1;
		1571
		1572	$group =~ s/&/&amp;/g;
		1573	$group =~ s/</&lt;/g;
		1574
		1575	$xml .= $group;
		1576	} elsif ($pod =~ m%\G
		1577	([BCGHITU])
		1578	<
		1579	(?:
		1580	([^<>]*) (?{ $group = $^N })
		1581	| < $interior >
		1582	)
		1583	>
		1584	%gcsx
		1585	) {
		1586	my ($code, $data) = ($1, $group);
		1587
		1588	if ($code eq "B") {
		1589	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1590	} elsif ($code eq "I") {
		1591	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1592	} elsif ($code eq "U") {
		1593	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1594	} elsif ($code eq "C") {
		1595	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1596	} elsif ($code eq "T") {
		1597	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1598	} elsif ($code eq "G") {
		1599	my ($male, $female) = split /\|/, $data;
		1600	$data = $self->gender ? $female : $male;
		1601	$xml .= expand_cfpod ($self, $data);
		1602	} elsif ($code eq "H") {
		1603	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1604	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1605	"")
		1606	[$self->{hintmode}];
		1607	} else {
		1608	$xml .= "error processing '$code($data)' directive";
		1609	}
		1610	} else {
		1611	if ($pod =~ /\G(.+)/) {
		1612	warn "parse error while expanding $pod (at $1)";
		1613	}
		1614	last;
		1615	}
		1616	}
		1617
		1618	for ($xml) {
		1619	# create single paragraphs (very hackish)
		1620	s/(?<=\S)\n(?=\w)/ /g;
		1621
		1622	# compress some whitespace
		1623	s/\s+\n/\n/g; # ws line-ends
		1624	s/\n\n+/\n/g; # double lines
		1625	s/^\n+//; # beginning lines
		1626	s/\n+$//; # ending lines
		1627	}
		1628
		1629	$xml
		1630	}
		1631
		1632	sub hintmode {
		1633	$_[0]{hintmode} = $_[1] if @_ > 1;
		1634	$_[0]{hintmode}
		1635	}
		1636
1233	=item $player->ext_reply ($msgid, $msgtype, %msg)	1637	=item $player->ext_reply ($msgid, @msg)
1234		1638
1235	Sends an ext reply to the player.	1639	Sends an ext reply to the player.
1236		1640
1237	=cut	1641	=cut
1238		1642
1239	sub ext_reply($$$%) {	1643	sub ext_reply($$@) {
1240	my ($self, $id, %msg) = @_;	1644	my ($self, $id, @msg) = @_;
1241		1645
1242	$msg{msgid} = $id;	1646	$self->ns->ext_reply ($id, @msg)
1243
1244	$self->send ("ext " . cf::to_json \%msg);
1245	}	1647	}
1246		1648
1247	package cf;	1649	=item $player->ext_msg ($type, @msg)
		1650
		1651	Sends an ext event to the client.
		1652
		1653	=cut
		1654
		1655	sub ext_msg($$@) {
		1656	my ($self, $type, @msg) = @_;
		1657
		1658	$self->ns->ext_msg ($type, @msg);
		1659	}
		1660
		1661	=head3 cf::region
		1662
		1663	=over 4
		1664
		1665	=cut
		1666
		1667	package cf::region;
		1668
		1669	=item cf::region::find_by_path $path
		1670
		1671	Tries to decuce the likely region for a map knowing only its path.
		1672
		1673	=cut
		1674
		1675	sub find_by_path($) {
		1676	my ($path) = @_;
		1677
		1678	my ($match, $specificity);
		1679
		1680	for my $region (list) {
		1681	if ($region->{match} && $path =~ $region->{match}) {
		1682	($match, $specificity) = ($region, $region->specificity)
		1683	if $region->specificity > $specificity;
		1684	}
		1685	}
		1686
		1687	$match
		1688	}
1248		1689
1249	=back	1690	=back
1250
1251		1691
1252	=head3 cf::map	1692	=head3 cf::map
1253		1693
1254	=over 4	1694	=over 4
1255		1695
…		…
1258	package cf::map;	1698	package cf::map;
1259		1699
1260	use Fcntl;	1700	use Fcntl;
1261	use Coro::AIO;	1701	use Coro::AIO;
1262		1702
		1703	use overload
		1704	'""' => \&as_string,
		1705	fallback => 1;
		1706
1263	our $MAX_RESET = 3600;	1707	our $MAX_RESET = 3600;
1264	our $DEFAULT_RESET = 3000;	1708	our $DEFAULT_RESET = 3000;
1265		1709
1266	sub generate_random_map {	1710	sub generate_random_map {
1267	my ($path, $rmp) = @_;	1711	my ($self, $rmp) = @_;
1268
1269	# mit "rum" bekleckern, nicht	1712	# mit "rum" bekleckern, nicht
1270	cf::map::_create_random_map	1713	$self->_create_random_map (
1271	$path,
1272	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1714	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1273	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1715	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1274	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1716	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1275	$rmp->{exit_on_final_map},	1717	$rmp->{exit_on_final_map},
1276	$rmp->{xsize}, $rmp->{ysize},	1718	$rmp->{xsize}, $rmp->{ysize},
1277	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1719	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1278	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1720	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1279	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1721	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1280	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1722	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1281	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1723	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1282	(cf::region::find $rmp->{region})	1724	(cf::region::find $rmp->{region}), $rmp->{custom}
		1725	)
		1726	}
		1727
		1728	=item cf::map->register ($regex, $prio)
		1729
		1730	Register a handler for the map path matching the given regex at the
		1731	givne priority (higher is better, built-in handlers have priority 0, the
		1732	default).
		1733
		1734	=cut
		1735
		1736	sub register {
		1737	my (undef, $regex, $prio) = @_;
		1738	my $pkg = caller;
		1739
		1740	no strict;
		1741	push @{"$pkg\::ISA"}, __PACKAGE__;
		1742
		1743	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1744	}
		1745
		1746	# also paths starting with '/'
		1747	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1748
		1749	sub thawer_merge {
		1750	my ($self, $merge) = @_;
		1751
		1752	# we have to keep some variables in memory intact
		1753	local $self->{path};
		1754	local $self->{load_path};
		1755
		1756	$self->SUPER::thawer_merge ($merge);
		1757	}
		1758
		1759	sub normalise {
		1760	my ($path, $base) = @_;
		1761
		1762	$path = "$path"; # make sure its a string
		1763
		1764	$path =~ s/\.map$//;
		1765
		1766	# map plan:
		1767	#
		1768	# /! non-realised random map exit (special hack!)
		1769	# {... are special paths that are not being touched
		1770	# ?xxx/... are special absolute paths
		1771	# ?random/... random maps
		1772	# /... normal maps
		1773	# ~user/... per-player map of a specific user
		1774
		1775	$path =~ s/$PATH_SEP/\//go;
		1776
		1777	# treat it as relative path if it starts with
		1778	# something that looks reasonable
		1779	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1780	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1781
		1782	$base =~ s{[^/]+/?$}{};
		1783	$path = "$base/$path";
		1784	}
		1785
		1786	for ($path) {
		1787	redo if s{//}{/};
		1788	redo if s{/\.?/}{/};
		1789	redo if s{/[^/]+/\.\./}{/};
		1790	}
		1791
		1792	$path
		1793	}
		1794
		1795	sub new_from_path {
		1796	my (undef, $path, $base) = @_;
		1797
		1798	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1799
		1800	$path = normalise $path, $base;
		1801
		1802	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1803	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1804	my $self = bless cf::map::new, $pkg;
		1805	$self->{path} = $path; $self->path ($path);
		1806	$self->init; # pass $1 etc.
		1807	return $self;
		1808	}
		1809	}
		1810
		1811	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1812	()
		1813	}
		1814
		1815	sub init {
		1816	my ($self) = @_;
		1817
		1818	$self
		1819	}
		1820
		1821	sub as_string {
		1822	my ($self) = @_;
		1823
		1824	"$self->{path}"
		1825	}
		1826
		1827	# the displayed name, this is a one way mapping
		1828	sub visible_name {
		1829	&as_string
		1830	}
		1831
		1832	# the original (read-only) location
		1833	sub load_path {
		1834	my ($self) = @_;
		1835
		1836	"$MAPDIR/$self->{path}.map"
		1837	}
		1838
		1839	# the temporary/swap location
		1840	sub save_path {
		1841	my ($self) = @_;
		1842
		1843	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1844	"$TMPDIR/$path.map"
		1845	}
		1846
		1847	# the unique path, undef == no special unique path
		1848	sub uniq_path {
		1849	my ($self) = @_;
		1850
		1851	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1852	"$UNIQUEDIR/$path"
1283	}	1853	}
1284		1854
1285	# and all this just because we cannot iterate over	1855	# and all this just because we cannot iterate over
1286	# all maps in C++...	1856	# all maps in C++...
1287	sub change_all_map_light {	1857	sub change_all_map_light {
…		…
1289		1859
1290	$_->change_map_light ($change)	1860	$_->change_map_light ($change)
1291	for grep $_->outdoor, values %cf::MAP;	1861	for grep $_->outdoor, values %cf::MAP;
1292	}	1862	}
1293		1863
		1864	sub decay_objects {
		1865	my ($self) = @_;
		1866
		1867	return if $self->{deny_reset};
		1868
		1869	$self->do_decay_objects;
		1870	}
		1871
		1872	sub unlink_save {
		1873	my ($self) = @_;
		1874
		1875	utf8::encode (my $save = $self->save_path);
		1876	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1877	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1878	}
		1879
1294	sub load_map_header($) {	1880	sub load_header_from($) {
1295	my ($path) = @_;	1881	my ($self, $path) = @_;
1296		1882
1297	utf8::encode $path;	1883	utf8::encode $path;
1298	aio_open $path, O_RDONLY, 0	1884	my $f = new_from_file cf::object::thawer $path
1299	or return;	1885	or return;
1300		1886
1301	my $map = cf::map::new	1887	$self->_load_header ($f)
1302	or return;	1888	or return;
1303		1889
1304	# for better error messages only, will be overwritten later	1890	local $MAP_LOADING{$self->{path}} = $self;
1305	$map->path ($path);	1891	$f->resolve_delayed_derefs;
1306		1892
1307	$map->load_header ($path)	1893	$self->{load_path} = $path;
		1894
		1895	1
		1896	}
		1897
		1898	sub load_header_orig {
		1899	my ($self) = @_;
		1900
		1901	$self->load_header_from ($self->load_path)
		1902	}
		1903
		1904	sub load_header_temp {
		1905	my ($self) = @_;
		1906
		1907	$self->load_header_from ($self->save_path)
		1908	}
		1909
		1910	sub prepare_temp {
		1911	my ($self) = @_;
		1912
		1913	$self->last_access ((delete $self->{last_access})
		1914	|| $cf::RUNTIME); #d#
		1915	# safety
		1916	$self->{instantiate_time} = $cf::RUNTIME
		1917	if $self->{instantiate_time} > $cf::RUNTIME;
		1918	}
		1919
		1920	sub prepare_orig {
		1921	my ($self) = @_;
		1922
		1923	$self->{load_original} = 1;
		1924	$self->{instantiate_time} = $cf::RUNTIME;
		1925	$self->last_access ($cf::RUNTIME);
		1926	$self->instantiate;
		1927	}
		1928
		1929	sub load_header {
		1930	my ($self) = @_;
		1931
		1932	if ($self->load_header_temp) {
		1933	$self->prepare_temp;
		1934	} else {
		1935	$self->load_header_orig
1308	or return;	1936	or return;
		1937	$self->prepare_orig;
		1938	}
1309		1939
1310	$map->{load_path} = $path;	1940	$self->{deny_reset} = 1
		1941	if $self->no_reset;
1311		1942
1312	$map	1943	$self->default_region (cf::region::find_by_path $self->{path})
		1944	unless $self->default_region;
		1945
		1946	1
1313	}	1947	}
1314		1948
1315	sub find;	1949	sub find;
1316	sub find {	1950	sub find {
1317	my ($path, $origin) = @_;	1951	my ($path, $origin) = @_;
1318		1952
1319	#warn "find<$path,$origin>\n";#d#
1320
1321	$path = new cf::path $path, $origin && $origin->path;	1953	$path = normalise $path, $origin && $origin->path;
1322	my $key = $path->as_string;
1323		1954
		1955	cf::lock_wait "map_data:$path";#d#remove
1324	cf::lock_wait "map_find:$key";	1956	cf::lock_wait "map_find:$path";
1325		1957
1326	$cf::MAP{$key} || do {	1958	$cf::MAP{$path} || do {
1327	my $guard = cf::lock_acquire "map_find:$key";	1959	my $guard1 = cf::lock_acquire "map_find:$path";
		1960	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1328		1961
1329	# do it the slow way	1962	my $map = new_from_path cf::map $path
1330	my $map = $path->load_temp;
1331
1332	Coro::cede;
1333
1334	if ($map) {
1335	$map->last_access ((delete $map->{last_access})
1336	|| $cf::RUNTIME); #d#
1337	# safety
1338	$map->{instantiate_time} = $cf::RUNTIME
1339	if $map->{instantiate_time} > $cf::RUNTIME;
1340	} else {
1341	$map = $path->load_orig
1342	or return;	1963	or return;
1343		1964
1344	$map->{load_original} = 1;
1345	$map->{instantiate_time} = $cf::RUNTIME;
1346	$map->last_access ($cf::RUNTIME);
1347	$map->instantiate;
1348
1349	# per-player maps become, after loading, normal maps
1350	$map->per_player (0) if $path->{user_rel};
1351	}
1352
1353	$map->path ($key);
1354	$map->{path} = $path;
1355	$map->{last_save} = $cf::RUNTIME;	1965	$map->{last_save} = $cf::RUNTIME;
1356		1966
1357	Coro::cede;	1967	$map->load_header
		1968	or return;
1358		1969
1359	if ($map->should_reset) {	1970	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1971	# doing this can freeze the server in a sync job, obviously
		1972	#$cf::WAIT_FOR_TICK->wait;
		1973	undef $guard1;
		1974	undef $guard2;
1360	$map->reset;	1975	$map->reset;
1361	undef $guard;
1362	$map = find $path	1976	return find $path;
1363	or return;
1364	}	1977	}
1365		1978
1366	$cf::MAP{$key} = $map	1979	$cf::MAP{$path} = $map
1367	}	1980	}
1368	}	1981	}
		1982
		1983	sub pre_load { }
		1984	sub post_load { }
1369		1985
1370	sub load {	1986	sub load {
1371	my ($self) = @_;	1987	my ($self) = @_;
1372		1988
		1989	local $self->{deny_reset} = 1; # loading can take a long time
		1990
1373	my $path = $self->{path};	1991	my $path = $self->{path};
		1992
		1993	{
1374	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1994	my $guard = cf::lock_acquire "map_data:$path";
1375		1995
		1996	return unless $self->valid;
1376	return if $self->in_memory != cf::MAP_SWAPPED;	1997	return unless $self->in_memory == cf::MAP_SWAPPED;
1377		1998
1378	$self->in_memory (cf::MAP_LOADING);	1999	$self->in_memory (cf::MAP_LOADING);
1379		2000
1380	$self->alloc;	2001	$self->alloc;
1381	$self->load_objects ($self->{load_path}, 1)	2002
		2003	$self->pre_load;
		2004	cf::cede_to_tick;
		2005
		2006	my $f = new_from_file cf::object::thawer $self->{load_path};
		2007	$f->skip_block;
		2008	$self->_load_objects ($f)
1382	or return;	2009	or return;
1383		2010
1384	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2011	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1385	if delete $self->{load_original};	2012	if delete $self->{load_original};
1386		2013
1387	if (my $uniq = $path->uniq_path) {	2014	if (my $uniq = $self->uniq_path) {
1388	utf8::encode $uniq;	2015	utf8::encode $uniq;
1389	if (aio_open $uniq, O_RDONLY, 0) {	2016	unless (aio_stat $uniq) {
		2017	if (my $f = new_from_file cf::object::thawer $uniq) {
1390	$self->clear_unique_items;	2018	$self->clear_unique_items;
1391	$self->load_objects ($uniq, 0);	2019	$self->_load_objects ($f);
		2020	$f->resolve_delayed_derefs;
		2021	}
1392	}	2022	}
1393	}	2023	}
1394		2024
1395	Coro::cede;	2025	$f->resolve_delayed_derefs;
1396		2026
		2027	cf::cede_to_tick;
1397	# now do the right thing for maps	2028	# now do the right thing for maps
1398	$self->link_multipart_objects;	2029	$self->link_multipart_objects;
1399
1400	if ($self->{path}->is_style_map) {
1401	$self->{deny_save} = 1;
1402	$self->{deny_reset} = 1;
1403	} else {
1404	$self->fix_auto_apply;
1405	$self->decay_objects;
1406	$self->update_buttons;
1407	$self->set_darkness_map;
1408	$self->difficulty ($self->estimate_difficulty)	2030	$self->difficulty ($self->estimate_difficulty)
1409	unless $self->difficulty;	2031	unless $self->difficulty;
		2032	cf::cede_to_tick;
		2033
		2034	unless ($self->{deny_activate}) {
		2035	$self->decay_objects;
		2036	$self->fix_auto_apply;
		2037	$self->update_buttons;
		2038	cf::cede_to_tick;
		2039	$self->set_darkness_map;
		2040	cf::cede_to_tick;
1410	$self->activate;	2041	$self->activate;
1411	}	2042	}
1412		2043
1413	Coro::cede;	2044	$self->{last_save} = $cf::RUNTIME;
		2045	$self->last_access ($cf::RUNTIME);
1414		2046
1415	$self->in_memory (cf::MAP_IN_MEMORY);	2047	$self->in_memory (cf::MAP_IN_MEMORY);
		2048	}
		2049
		2050	$self->post_load;
		2051	}
		2052
		2053	sub customise_for {
		2054	my ($self, $ob) = @_;
		2055
		2056	return find "~" . $ob->name . "/" . $self->{path}
		2057	if $self->per_player;
		2058
		2059	# return find "?party/" . $ob->name . "/" . $self->{path}
		2060	# if $self->per_party;
		2061
		2062	$self
1416	}	2063	}
1417		2064
1418	# find and load all maps in the 3x3 area around a map	2065	# find and load all maps in the 3x3 area around a map
1419	sub load_diag {	2066	sub load_neighbours {
1420	my ($map) = @_;	2067	my ($map) = @_;
1421		2068
1422	my @diag; # diagonal neighbours	2069	my @neigh; # diagonal neighbours
1423		2070
1424	for (0 .. 3) {	2071	for (0 .. 3) {
1425	my $neigh = $map->tile_path ($_)	2072	my $neigh = $map->tile_path ($_)
1426	or next;	2073	or next;
1427	$neigh = find $neigh, $map	2074	$neigh = find $neigh, $map
1428	or next;	2075	or next;
1429	$neigh->load;	2076	$neigh->load;
1430		2077
		2078	push @neigh,
1431	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2079	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1432	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2080	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1433	}	2081	}
1434		2082
1435	for (@diag) {	2083	for (grep defined $_->[0], @neigh) {
		2084	my ($path, $origin) = @$_;
1436	my $neigh = find @$_	2085	my $neigh = find $path, $origin
1437	or next;	2086	or next;
1438	$neigh->load;	2087	$neigh->load;
1439	}	2088	}
1440	}	2089	}
1441		2090
…		…
1446	}	2095	}
1447		2096
1448	sub do_load_sync {	2097	sub do_load_sync {
1449	my ($map) = @_;	2098	my ($map) = @_;
1450		2099
		2100	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2101	if $Coro::current == $Coro::main;
		2102
1451	cf::sync_job { $map->load };	2103	cf::sync_job { $map->load };
1452	}	2104	}
1453		2105
1454	our %MAP_PREFETCH;	2106	our %MAP_PREFETCH;
		2107	our $MAP_PREFETCHER = undef;
		2108
		2109	sub find_async {
		2110	my ($path, $origin, $load) = @_;
		2111
		2112	$path = normalise $path, $origin && $origin->{path};
		2113
		2114	if (my $map = $cf::MAP{$path}) {
		2115	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2116	}
		2117
		2118	$MAP_PREFETCH{$path} |= $load;
		2119
1455	our $MAP_PREFETCHER = Coro::async {	2120	$MAP_PREFETCHER ||= cf::async {
1456	while () {	2121	$Coro::current->{desc} = "map prefetcher";
		2122
1457	while (%MAP_PREFETCH) {	2123	while (%MAP_PREFETCH) {
1458	my $key = each %MAP_PREFETCH	2124	while (my ($k, $v) = each %MAP_PREFETCH) {
1459	or next;	2125	if (my $map = find $k) {
		2126	$map->load if $v;
		2127	}
		2128
1460	my $path = delete $MAP_PREFETCH{$key};	2129	delete $MAP_PREFETCH{$k};
1461
1462	my $map = find $path
1463	or next;
1464	$map->load;
1465	}	2130	}
1466	Coro::schedule;	2131	}
		2132	undef $MAP_PREFETCHER;
1467	}	2133	};
1468	};
1469
1470	sub find_async {
1471	my ($path, $origin) = @_;
1472
1473	$path = new cf::path $path, $origin && $origin->path;
1474	my $key = $path->as_string;
1475
1476	if (my $map = $cf::MAP{$key}) {
1477	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1478	}
1479
1480	$MAP_PREFETCH{$key} = $path;
1481	$MAP_PREFETCHER->ready;	2134	$MAP_PREFETCHER->prio (6);
1482		2135
1483	()	2136	()
1484	}	2137	}
1485		2138
1486	sub save {	2139	sub save {
1487	my ($self) = @_;	2140	my ($self) = @_;
1488		2141
1489	my $lock = cf::lock_acquire "map_data:" . $self->path;	2142	my $lock = cf::lock_acquire "map_data:$self->{path}";
1490		2143
1491	$self->{last_save} = $cf::RUNTIME;	2144	$self->{last_save} = $cf::RUNTIME;
1492		2145
1493	return unless $self->dirty;	2146	return unless $self->dirty;
1494		2147
1495	my $save = $self->{path}->save_path; utf8::encode $save;	2148	my $save = $self->save_path; utf8::encode $save;
1496	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2149	my $uniq = $self->uniq_path; utf8::encode $uniq;
1497		2150
1498	$self->{load_path} = $save;	2151	$self->{load_path} = $save;
1499		2152
1500	return if $self->{deny_save};	2153	return if $self->{deny_save};
1501		2154
1502	local $self->{last_access} = $self->last_access;#d#	2155	local $self->{last_access} = $self->last_access;#d#
1503		2156
1504	cf::async {	2157	cf::async {
		2158	$Coro::current->{desc} = "map player save";
1505	$_->contr->save for $self->players;	2159	$_->contr->save for $self->players;
1506	};	2160	};
1507		2161
1508	if ($uniq) {	2162	if ($uniq) {
1509	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2163	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1510	$self->save_objects ($uniq, cf::IO_UNIQUES);	2164	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1511	} else {	2165	} else {
1512	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2166	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1513	}	2167	}
1514	}	2168	}
1515		2169
1516	sub swap_out {	2170	sub swap_out {
1517	my ($self) = @_;	2171	my ($self) = @_;
1518		2172
1519	# save first because save cedes	2173	# save first because save cedes
1520	$self->save;	2174	$self->save;
1521		2175
1522	my $lock = cf::lock_acquire "map_data:" . $self->path;	2176	my $lock = cf::lock_acquire "map_data:$self->{path}";
1523		2177
1524	return if $self->players;	2178	return if $self->players;
1525	return if $self->in_memory != cf::MAP_IN_MEMORY;	2179	return if $self->in_memory != cf::MAP_IN_MEMORY;
1526	return if $self->{deny_save};	2180	return if $self->{deny_save};
1527		2181
		2182	$self->in_memory (cf::MAP_SWAPPED);
		2183
		2184	$self->deactivate;
		2185	$_->clear_links_to ($self) for values %cf::MAP;
1528	$self->clear;	2186	$self->clear;
1529	$self->in_memory (cf::MAP_SWAPPED);
1530	}	2187	}
1531		2188
1532	sub reset_at {	2189	sub reset_at {
1533	my ($self) = @_;	2190	my ($self) = @_;
1534		2191
1535	# TODO: safety, remove and allow resettable per-player maps	2192	# TODO: safety, remove and allow resettable per-player maps
1536	return 1e99 if $self->{path}{user_rel};
1537	return 1e99 if $self->{deny_reset};	2193	return 1e99 if $self->{deny_reset};
1538		2194
1539	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2195	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1540	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2196	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1541		2197
…		…
1546	my ($self) = @_;	2202	my ($self) = @_;
1547		2203
1548	$self->reset_at <= $cf::RUNTIME	2204	$self->reset_at <= $cf::RUNTIME
1549	}	2205	}
1550		2206
1551	sub unlink_save {
1552	my ($self) = @_;
1553
1554	utf8::encode (my $save = $self->{path}->save_path);
1555	aioreq_pri 3; IO::AIO::aio_unlink $save;
1556	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1557	}
1558
1559	sub rename {
1560	my ($self, $new_path) = @_;
1561
1562	$self->unlink_save;
1563
1564	delete $cf::MAP{$self->path};
1565	$self->{path} = new cf::path $new_path;
1566	$self->path ($self->{path}->as_string);
1567	$cf::MAP{$self->path} = $self;
1568
1569	$self->save;
1570	}
1571
1572	sub reset {	2207	sub reset {
1573	my ($self) = @_;	2208	my ($self) = @_;
1574		2209
1575	my $lock = cf::lock_acquire "map_data:" . $self->path;	2210	my $lock = cf::lock_acquire "map_data:$self->{path}";
1576		2211
1577	return if $self->players;	2212	return if $self->players;
1578	return if $self->{path}{user_rel};#d#
1579		2213
1580	warn "resetting map ", $self->path;#d#	2214	warn "resetting map ", $self->path;
		2215
		2216	$self->in_memory (cf::MAP_SWAPPED);
		2217
		2218	# need to save uniques path
		2219	unless ($self->{deny_save}) {
		2220	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2221
		2222	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2223	if $uniq;
		2224	}
1581		2225
1582	delete $cf::MAP{$self->path};	2226	delete $cf::MAP{$self->path};
1583		2227
		2228	$self->deactivate;
1584	$_->clear_links_to ($self) for values %cf::MAP;	2229	$_->clear_links_to ($self) for values %cf::MAP;
		2230	$self->clear;
1585		2231
1586	$self->unlink_save;	2232	$self->unlink_save;
1587	$self->destroy;	2233	$self->destroy;
1588	}	2234	}
1589		2235
1590	my $nuke_counter = "aaaa";	2236	my $nuke_counter = "aaaa";
1591		2237
1592	sub nuke {	2238	sub nuke {
1593	my ($self) = @_;	2239	my ($self) = @_;
1594		2240
		2241	{
		2242	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2243
		2244	delete $cf::MAP{$self->path};
		2245
		2246	$self->unlink_save;
		2247
		2248	bless $self, "cf::map";
		2249	delete $self->{deny_reset};
1595	$self->{deny_save} = 1;	2250	$self->{deny_save} = 1;
1596	$self->reset_timeout (1);	2251	$self->reset_timeout (1);
1597	$self->rename ("{nuke}/" . ($nuke_counter++));	2252	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2253
		2254	$cf::MAP{$self->path} = $self;
		2255	}
		2256
1598	$self->reset; # polite request, might not happen	2257	$self->reset; # polite request, might not happen
1599	}	2258	}
1600		2259
1601	sub customise_for {	2260	=item $maps = cf::map::tmp_maps
1602	my ($map, $ob) = @_;
1603		2261
1604	if ($map->per_player) {	2262	Returns an arrayref with all map paths of currently instantiated and saved
1605	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2263	maps. May block.
		2264
		2265	=cut
		2266
		2267	sub tmp_maps() {
1606	}	2268	[
		2269	map {
		2270	utf8::decode $_;
		2271	/\.map$/
		2272	? normalise $_
		2273	: ()
		2274	} @{ aio_readdir $TMPDIR or [] }
		2275	]
		2276	}
1607		2277
1608	$map	2278	=item $maps = cf::map::random_maps
		2279
		2280	Returns an arrayref with all map paths of currently instantiated and saved
		2281	random maps. May block.
		2282
		2283	=cut
		2284
		2285	sub random_maps() {
		2286	[
		2287	map {
		2288	utf8::decode $_;
		2289	/\.map$/
		2290	? normalise "?random/$_"
		2291	: ()
		2292	} @{ aio_readdir $RANDOMDIR or [] }
		2293	]
1609	}	2294	}
1610		2295
1611	=item cf::map::unique_maps	2296	=item cf::map::unique_maps
1612		2297
1613	Returns an arrayref of cf::path's of all shared maps that have	2298	Returns an arrayref of paths of all shared maps that have
1614	instantiated unique items. May block.	2299	instantiated unique items. May block.
1615		2300
1616	=cut	2301	=cut
1617		2302
1618	sub unique_maps() {	2303	sub unique_maps() {
1619	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2304	[
1620	or return;	2305	map {
1621
1622	my @paths;
1623
1624	for (@$files) {
1625	utf8::decode $_;	2306	utf8::decode $_;
1626	next if /\.pst$/;	2307	/\.map$/
1627	next unless /^$PATH_SEP/o;	2308	? normalise $_
1628		2309	: ()
1629	push @paths, new cf::path $_;	2310	} @{ aio_readdir $UNIQUEDIR or [] }
1630	}	2311	]
1631
1632	\@paths
1633	}	2312	}
1634		2313
1635	package cf;	2314	package cf;
1636		2315
1637	=back	2316	=back
…		…
1655	map { $_, inv_recursive_ $_->inv } @_	2334	map { $_, inv_recursive_ $_->inv } @_
1656	}	2335	}
1657		2336
1658	sub inv_recursive {	2337	sub inv_recursive {
1659	inv_recursive_ inv $_[0]	2338	inv_recursive_ inv $_[0]
		2339	}
		2340
		2341	=item $ref = $ob->ref
		2342
		2343	creates and returns a persistent reference to an objetc that can be stored as a string.
		2344
		2345	=item $ob = cf::object::deref ($refstring)
		2346
		2347	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2348	even if the object actually exists. May block.
		2349
		2350	=cut
		2351
		2352	sub deref {
		2353	my ($ref) = @_;
		2354
		2355	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2356	my ($uuid, $name) = ($1, $2);
		2357	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2358	or return;
		2359	$pl->ob->uuid eq $uuid
		2360	or return;
		2361
		2362	$pl->ob
		2363	} else {
		2364	warn "$ref: cannot resolve object reference\n";
		2365	undef
		2366	}
1660	}	2367	}
1661		2368
1662	package cf;	2369	package cf;
1663		2370
1664	=back	2371	=back
…		…
1683		2390
1684	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2391	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1685		2392
1686	if ($self->{record_replies}) {	2393	if ($self->{record_replies}) {
1687	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2394	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2395
1688	} else {	2396	} else {
		2397	my $pl = $self->contr;
		2398
		2399	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2400	my $dialog = $pl->{npc_dialog};
		2401	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2402
		2403	} else {
1689	$msg = $npc->name . " says: $msg" if $npc;	2404	$msg = $npc->name . " says: $msg" if $npc;
1690	$self->message ($msg, $flags);	2405	$self->message ($msg, $flags);
		2406	}
1691	}	2407	}
		2408	}
		2409
		2410	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2411
		2412	=cut
		2413
		2414	sub cf::object::send_msg {
		2415	my $pl = shift->contr
		2416	or return;
		2417	$pl->send_msg (@_);
1692	}	2418	}
1693		2419
1694	=item $player_object->may ("access")	2420	=item $player_object->may ("access")
1695		2421
1696	Returns wether the given player is authorized to access resource "access"	2422	Returns wether the given player is authorized to access resource "access"
…		…
1709		2435
1710	=item $player_object->enter_link	2436	=item $player_object->enter_link
1711		2437
1712	Freezes the player and moves him/her to a special map (C<{link}>).	2438	Freezes the player and moves him/her to a special map (C<{link}>).
1713		2439
1714	The player should be reaosnably safe there for short amounts of time. You	2440	The player should be reasonably safe there for short amounts of time. You
1715	I<MUST> call C<leave_link> as soon as possible, though.	2441	I<MUST> call C<leave_link> as soon as possible, though.
1716		2442
		2443	Will never block.
		2444
1717	=item $player_object->leave_link ($map, $x, $y)	2445	=item $player_object->leave_link ($map, $x, $y)
1718		2446
1719	Moves the player out of the specila link map onto the given map. If the	2447	Moves the player out of the special C<{link}> map onto the specified
1720	map is not valid (or omitted), the player will be moved back to the	2448	map. If the map is not valid (or omitted), the player will be moved back
1721	location he/she was before the call to C<enter_link>, or, if that fails,	2449	to the location he/she was before the call to C<enter_link>, or, if that
1722	to the emergency map position.	2450	fails, to the emergency map position.
1723		2451
1724	Might block.	2452	Might block.
1725		2453
1726	=cut	2454	=cut
		2455
		2456	sub link_map {
		2457	unless ($LINK_MAP) {
		2458	$LINK_MAP = cf::map::find "{link}"
		2459	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2460	$LINK_MAP->load;
		2461	}
		2462
		2463	$LINK_MAP
		2464	}
1727		2465
1728	sub cf::object::player::enter_link {	2466	sub cf::object::player::enter_link {
1729	my ($self) = @_;	2467	my ($self) = @_;
1730		2468
1731	$self->deactivate_recursive;	2469	$self->deactivate_recursive;
1732		2470
1733	return if $self->map == $LINK_MAP;	2471	return if UNIVERSAL::isa $self->map, "ext::map_link";
1734		2472
1735	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2473	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1736	if $self->map;	2474	if $self->map && $self->map->{path} ne "{link}";
1737		2475
1738	$self->enter_map ($LINK_MAP, 20, 20);	2476	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1739	}	2477	}
1740		2478
1741	sub cf::object::player::leave_link {	2479	sub cf::object::player::leave_link {
1742	my ($self, $map, $x, $y) = @_;	2480	my ($self, $map, $x, $y) = @_;
		2481
		2482	return unless $self->contr->active;
1743		2483
1744	my $link_pos = delete $self->{_link_pos};	2484	my $link_pos = delete $self->{_link_pos};
1745		2485
1746	unless ($map) {	2486	unless ($map) {
1747	# restore original map position	2487	# restore original map position
…		…
1761	# use -1 or undef as default coordinates, not 0, 0	2501	# use -1 or undef as default coordinates, not 0, 0
1762	($x, $y) = ($map->enter_x, $map->enter_y)	2502	($x, $y) = ($map->enter_x, $map->enter_y)
1763	if $x <=0 && $y <= 0;	2503	if $x <=0 && $y <= 0;
1764		2504
1765	$map->load;	2505	$map->load;
1766	$map->load_diag;	2506	$map->load_neighbours;
1767		2507
1768	return unless $self->contr->active;	2508	return unless $self->contr->active;
1769	$self->activate_recursive;	2509	$self->activate_recursive;
		2510
		2511	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1770	$self->enter_map ($map, $x, $y);	2512	$self->enter_map ($map, $x, $y);
1771	}	2513	}
1772		2514
1773	cf::player->attach (	2515	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1774	on_logout => sub {
1775	my ($pl) = @_;
1776		2516
1777	# abort map switching before logout	2517	Moves the player to the given map-path and coordinates by first freezing
1778	if ($pl->ob->{_link_pos}) {	2518	her, loading and preparing them map, calling the provided $check callback
1779	cf::sync_job {	2519	that has to return the map if sucecssful, and then unfreezes the player on
1780	$pl->ob->leave_link	2520	the new (success) or old (failed) map position. In either case, $done will
1781	};	2521	be called at the end of this process.
1782	}
1783	},
1784	on_login => sub {
1785	my ($pl) = @_;
1786		2522
1787	# try to abort aborted map switching on player login :)
1788	# should happen only on crashes
1789	if ($pl->ob->{_link_pos}) {
1790	$pl->ob->enter_link;
1791	(async {
1792	# we need this sleep as the login has a concurrent enter_exit running
1793	# and this sleep increases chances of the player not ending up in scorn
1794	$pl->ob->reply (undef,
1795	"There was an internal problem at your last logout, "
1796	. "the server will try to bring you to your intended destination in a second.",
1797	cf::NDI_RED);
1798	Coro::Timer::sleep 1;
1799	$pl->ob->leave_link;
1800	})->prio (2);
1801	}
1802	},
1803	);
1804
1805	=item $player_object->goto ($path, $x, $y)
1806
1807	=cut	2523	=cut
		2524
		2525	our $GOTOGEN;
1808		2526
1809	sub cf::object::player::goto {	2527	sub cf::object::player::goto {
1810	my ($self, $path, $x, $y) = @_;	2528	my ($self, $path, $x, $y, $check, $done) = @_;
1811		2529
1812	$path = new cf::path $path;	2530	# do generation counting so two concurrent goto's will be executed in-order
		2531	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1813		2532
1814	$self->enter_link;	2533	$self->enter_link;
1815		2534
1816	(async {	2535	(async {
1817	my $map = cf::map::find $path->as_string;	2536	$Coro::current->{desc} = "player::goto $path $x $y";
		2537
		2538	# *tag paths override both path and x|y
		2539	if ($path =~ /^\*(.*)$/) {
		2540	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2541	my $ob = $obs[rand @obs];
		2542
		2543	# see if we actually can go there
		2544	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2545	$ob = $obs[rand @obs];
		2546	} else {
		2547	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2548	}
		2549	# else put us there anyways for now #d#
		2550
		2551	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2552	} else {
		2553	($path, $x, $y) = (undef, undef, undef);
		2554	}
		2555	}
		2556
		2557	my $map = eval {
		2558	my $map = defined $path ? cf::map::find $path : undef;
		2559
		2560	if ($map) {
1818	$map = $map->customise_for ($self) if $map;	2561	$map = $map->customise_for ($self);
1819		2562	$map = $check->($map) if $check && $map;
1820	# warn "entering ", $map->path, " at ($x, $y)\n"	2563	} else {
1821	# if $map;
1822
1823	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2564	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2565	}
1824		2566
		2567	$map
		2568	};
		2569
		2570	if ($@) {
		2571	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2572	LOG llevError | logBacktrace, Carp::longmess $@;
		2573	}
		2574
		2575	if ($gen == $self->{_goto_generation}) {
		2576	delete $self->{_goto_generation};
1825	$self->leave_link ($map, $x, $y);	2577	$self->leave_link ($map, $x, $y);
		2578	}
		2579
		2580	$done->() if $done;
1826	})->prio (1);	2581	})->prio (1);
1827	}	2582	}
1828		2583
1829	=item $player_object->enter_exit ($exit_object)	2584	=item $player_object->enter_exit ($exit_object)
1830		2585
…		…
1832		2587
1833	sub parse_random_map_params {	2588	sub parse_random_map_params {
1834	my ($spec) = @_;	2589	my ($spec) = @_;
1835		2590
1836	my $rmp = { # defaults	2591	my $rmp = { # defaults
1837	xsize => 10,	2592	xsize => (cf::rndm 15, 40),
1838	ysize => 10,	2593	ysize => (cf::rndm 15, 40),
		2594	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2595	#layout => string,
1839	};	2596	};
1840		2597
1841	for (split /\n/, $spec) {	2598	for (split /\n/, $spec) {
1842	my ($k, $v) = split /\s+/, $_, 2;	2599	my ($k, $v) = split /\s+/, $_, 2;
1843		2600
…		…
1847	$rmp	2604	$rmp
1848	}	2605	}
1849		2606
1850	sub prepare_random_map {	2607	sub prepare_random_map {
1851	my ($exit) = @_;	2608	my ($exit) = @_;
		2609
		2610	my $guard = cf::lock_acquire "exit_prepare:$exit";
1852		2611
1853	# all this does is basically replace the /! path by	2612	# all this does is basically replace the /! path by
1854	# a new random map path (?random/...) with a seed	2613	# a new random map path (?random/...) with a seed
1855	# that depends on the exit object	2614	# that depends on the exit object
1856		2615
1857	my $rmp = parse_random_map_params $exit->msg;	2616	my $rmp = parse_random_map_params $exit->msg;
1858		2617
1859	if ($exit->map) {	2618	if ($exit->map) {
1860	$rmp->{region} = $exit->map->region_name;	2619	$rmp->{region} = $exit->region->name;
1861	$rmp->{origin_map} = $exit->map->path;	2620	$rmp->{origin_map} = $exit->map->path;
1862	$rmp->{origin_x} = $exit->x;	2621	$rmp->{origin_x} = $exit->x;
1863	$rmp->{origin_y} = $exit->y;	2622	$rmp->{origin_y} = $exit->y;
1864	}	2623	}
1865		2624
1866	$rmp->{random_seed} ||= $exit->random_seed;	2625	$rmp->{random_seed} ||= $exit->random_seed;
1867		2626
1868	my $data = cf::to_json $rmp;	2627	my $data = cf::to_json $rmp;
1869	my $md5 = Digest::MD5::md5_hex $data;	2628	my $md5 = Digest::MD5::md5_hex $data;
		2629	my $meta = "$RANDOMDIR/$md5.meta";
1870		2630
1871	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2631	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1872	aio_write $fh, 0, (length $data), $data, 0;	2632	aio_write $fh, 0, (length $data), $data, 0;
		2633	undef $fh;
		2634	aio_rename "$meta~", $meta;
1873		2635
1874	$exit->slaying ("?random/$md5");	2636	$exit->slaying ("?random/$md5");
1875	$exit->msg (undef);	2637	$exit->msg (undef);
1876	}	2638	}
1877	}	2639	}
…		…
1879	sub cf::object::player::enter_exit {	2641	sub cf::object::player::enter_exit {
1880	my ($self, $exit) = @_;	2642	my ($self, $exit) = @_;
1881		2643
1882	return unless $self->type == cf::PLAYER;	2644	return unless $self->type == cf::PLAYER;
1883		2645
		2646	if ($exit->slaying eq "/!") {
		2647	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2648	# the problem is that $exit might not survive long enough
		2649	# so it needs to be done right now, right here
		2650	cf::sync_job { prepare_random_map $exit };
		2651	}
		2652
		2653	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2654	my $hp = $exit->stats->hp;
		2655	my $sp = $exit->stats->sp;
		2656
1884	$self->enter_link;	2657	$self->enter_link;
1885		2658
		2659	# if exit is damned, update players death & WoR home-position
		2660	$self->contr->savebed ($slaying, $hp, $sp)
		2661	if $exit->flag (FLAG_DAMNED);
		2662
1886	(async {	2663	(async {
		2664	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2665
1887	$self->deactivate_recursive; # just to be sure	2666	$self->deactivate_recursive; # just to be sure
1888	unless (eval {	2667	unless (eval {
1889	prepare_random_map $exit	2668	$self->goto ($slaying, $hp, $sp);
1890	if $exit->slaying eq "/!";
1891
1892	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1893	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1894		2669
1895	1;	2670	1;
1896	}) {	2671	}) {
1897	$self->message ("Something went wrong deep within the crossfire server. "	2672	$self->message ("Something went wrong deep within the crossfire server. "
1898	. "I'll try to bring you back to the map you were before. "	2673	. "I'll try to bring you back to the map you were before. "
1899	. "Please report this to the dungeon master!",	2674	. "Please report this to the dungeon master!",
1900	cf::NDI_UNIQUE | cf::NDI_RED);	2675	cf::NDI_UNIQUE | cf::NDI_RED);
1901		2676
1902	warn "ERROR in enter_exit: $@";	2677	warn "ERROR in enter_exit: $@";
1903	$self->leave_link;	2678	$self->leave_link;
1904	}	2679	}
1905	})->prio (1);	2680	})->prio (1);
…		…
1918		2693
1919	sub cf::client::send_drawinfo {	2694	sub cf::client::send_drawinfo {
1920	my ($self, $text, $flags) = @_;	2695	my ($self, $text, $flags) = @_;
1921		2696
1922	utf8::encode $text;	2697	utf8::encode $text;
1923	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2698	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1924	}	2699	}
1925		2700
		2701	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2702
		2703	Send a drawinfo or msg packet to the client, formatting the msg for the
		2704	client if neccessary. C<$type> should be a string identifying the type of
		2705	the message, with C<log> being the default. If C<$color> is negative, suppress
		2706	the message unless the client supports the msg packet.
		2707
		2708	=cut
		2709
		2710	# non-persistent channels (usually the info channel)
		2711	our %CHANNEL = (
		2712	"c/identify" => {
		2713	id => "infobox",
		2714	title => "Identify",
		2715	reply => undef,
		2716	tooltip => "Items recently identified",
		2717	},
		2718	"c/examine" => {
		2719	id => "infobox",
		2720	title => "Examine",
		2721	reply => undef,
		2722	tooltip => "Signs and other items you examined",
		2723	},
		2724	"c/book" => {
		2725	id => "infobox",
		2726	title => "Book",
		2727	reply => undef,
		2728	tooltip => "The contents of a note or book",
		2729	},
		2730	"c/lookat" => {
		2731	id => "infobox",
		2732	title => "Look",
		2733	reply => undef,
		2734	tooltip => "What you saw there",
		2735	},
		2736	"c/who" => {
		2737	id => "infobox",
		2738	title => "Players",
		2739	reply => undef,
		2740	tooltip => "Shows players who are currently online",
		2741	},
		2742	"c/body" => {
		2743	id => "infobox",
		2744	title => "Body Parts",
		2745	reply => undef,
		2746	tooltip => "Shows which body parts you posess and are available",
		2747	},
		2748	"c/uptime" => {
		2749	id => "infobox",
		2750	title => "Uptime",
		2751	reply => undef,
		2752	tooltip => "How long the server has been running since last restart",
		2753	},
		2754	"c/mapinfo" => {
		2755	id => "infobox",
		2756	title => "Map Info",
		2757	reply => undef,
		2758	tooltip => "Information related to the maps",
		2759	},
		2760	);
		2761
		2762	sub cf::client::send_msg {
		2763	my ($self, $channel, $msg, $color, @extra) = @_;
		2764
		2765	$msg = $self->pl->expand_cfpod ($msg);
		2766
		2767	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2768
		2769	# check predefined channels, for the benefit of C
		2770	if ($CHANNEL{$channel}) {
		2771	$channel = $CHANNEL{$channel};
		2772
		2773	$self->ext_msg (channel_info => $channel)
		2774	if $self->can_msg;
		2775
		2776	$channel = $channel->{id};
		2777
		2778	} elsif (ref $channel) {
		2779	# send meta info to client, if not yet sent
		2780	unless (exists $self->{channel}{$channel->{id}}) {
		2781	$self->{channel}{$channel->{id}} = $channel;
		2782	$self->ext_msg (channel_info => $channel)
		2783	if $self->can_msg;
		2784	}
		2785
		2786	$channel = $channel->{id};
		2787	}
		2788
		2789	return unless @extra || length $msg;
		2790
		2791	if ($self->can_msg) {
		2792	# default colour, mask it out
		2793	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2794	if $color & cf::NDI_DEF;
		2795
		2796	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2797	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2798	} else {
		2799	if ($color >= 0) {
		2800	# replace some tags by gcfclient-compatible ones
		2801	for ($msg) {
		2802	1 while
		2803	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2804	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2805	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2806	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2807	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2808	}
		2809
		2810	$color &= cf::NDI_COLOR_MASK;
		2811
		2812	utf8::encode $msg;
		2813
		2814	if (0 && $msg =~ /\[/) {
		2815	# COMMAND/INFO
		2816	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2817	} else {
		2818	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2819	$self->send_packet ("drawinfo $color $msg")
		2820	}
		2821	}
		2822	}
		2823	}
		2824
		2825	=item $client->ext_msg ($type, @msg)
		2826
		2827	Sends an ext event to the client.
		2828
		2829	=cut
		2830
		2831	sub cf::client::ext_msg($$@) {
		2832	my ($self, $type, @msg) = @_;
		2833
		2834	if ($self->extcmd == 2) {
		2835	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2836	} elsif ($self->extcmd == 1) { # TODO: remove
		2837	push @msg, msgtype => "event_$type";
		2838	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2839	}
		2840	}
		2841
		2842	=item $client->ext_reply ($msgid, @msg)
		2843
		2844	Sends an ext reply to the client.
		2845
		2846	=cut
		2847
		2848	sub cf::client::ext_reply($$@) {
		2849	my ($self, $id, @msg) = @_;
		2850
		2851	if ($self->extcmd == 2) {
		2852	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2853	} elsif ($self->extcmd == 1) {
		2854	#TODO: version 1, remove
		2855	unshift @msg, msgtype => "reply", msgid => $id;
		2856	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2857	}
		2858	}
1926		2859
1927	=item $success = $client->query ($flags, "text", \&cb)	2860	=item $success = $client->query ($flags, "text", \&cb)
1928		2861
1929	Queues a query to the client, calling the given callback with	2862	Queues a query to the client, calling the given callback with
1930	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2863	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1931	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2864	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1932		2865
1933	Queries can fail, so check the return code. Or don't, as queries will become	2866	Queries can fail, so check the return code. Or don't, as queries will
1934	reliable at some point in the future.	2867	become reliable at some point in the future.
1935		2868
1936	=cut	2869	=cut
1937		2870
1938	sub cf::client::query {	2871	sub cf::client::query {
1939	my ($self, $flags, $text, $cb) = @_;	2872	my ($self, $flags, $text, $cb) = @_;
…		…
1947	utf8::encode $text;	2880	utf8::encode $text;
1948	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2881	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1949		2882
1950	$self->send_packet ($self->{query_queue}[0][0])	2883	$self->send_packet ($self->{query_queue}[0][0])
1951	if @{ $self->{query_queue} } == 1;	2884	if @{ $self->{query_queue} } == 1;
		2885
		2886	1
1952	}	2887	}
1953		2888
1954	cf::client->attach (	2889	cf::client->attach (
		2890	on_connect => sub {
		2891	my ($ns) = @_;
		2892
		2893	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2894	},
1955	on_reply => sub {	2895	on_reply => sub {
1956	my ($ns, $msg) = @_;	2896	my ($ns, $msg) = @_;
1957		2897
1958	# this weird shuffling is so that direct followup queries	2898	# this weird shuffling is so that direct followup queries
1959	# get handled first	2899	# get handled first
1960	my $queue = delete $ns->{query_queue}	2900	my $queue = delete $ns->{query_queue}
1961	or return; # be conservative, not sure how that can happen, but we saw a crash here	2901	or return; # be conservative, not sure how that can happen, but we saw a crash here
1962		2902
1963	(shift @$queue)->[1]->($msg);	2903	(shift @$queue)->[1]->($msg);
		2904	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1964		2905
1965	push @{ $ns->{query_queue} }, @$queue;	2906	push @{ $ns->{query_queue} }, @$queue;
1966		2907
1967	if (@{ $ns->{query_queue} } == @$queue) {	2908	if (@{ $ns->{query_queue} } == @$queue) {
1968	if (@$queue) {	2909	if (@$queue) {
…		…
1970	} else {	2911	} else {
1971	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2912	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1972	}	2913	}
1973	}	2914	}
1974	},	2915	},
		2916	on_exticmd => sub {
		2917	my ($ns, $buf) = @_;
		2918
		2919	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2920
		2921	if (ref $msg) {
		2922	my ($type, $reply, @payload) =
		2923	"ARRAY" eq ref $msg
		2924	? @$msg
		2925	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2926
		2927	my @reply;
		2928
		2929	if (my $cb = $EXTICMD{$type}) {
		2930	@reply = $cb->($ns, @payload);
		2931	}
		2932
		2933	$ns->ext_reply ($reply, @reply)
		2934	if $reply;
		2935
		2936	} else {
		2937	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2938	}
		2939
		2940	cf::override;
		2941	},
1975	);	2942	);
1976		2943
1977	=item $client->async (\&cb)	2944	=item $client->async (\&cb)
1978		2945
1979	Create a new coroutine, running the specified callback. The coroutine will	2946	Create a new coroutine, running the specified callback. The coroutine will
…		…
2020	our $safe = new Safe "safe";	2987	our $safe = new Safe "safe";
2021	our $safe_hole = new Safe::Hole;	2988	our $safe_hole = new Safe::Hole;
2022		2989
2023	$SIG{FPE} = 'IGNORE';	2990	$SIG{FPE} = 'IGNORE';
2024		2991
2025	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2992	$safe->permit_only (Opcode::opset qw(
		2993	:base_core :base_mem :base_orig :base_math
		2994	grepstart grepwhile mapstart mapwhile
		2995	sort time
		2996	));
2026		2997
2027	# here we export the classes and methods available to script code	2998	# here we export the classes and methods available to script code
2028		2999
2029	=pod	3000	=pod
2030		3001
2031	The following fucntions and emthods are available within a safe environment:	3002	The following functions and methods are available within a safe environment:
2032		3003
2033	cf::object contr pay_amount pay_player map	3004	cf::object
		3005	contr pay_amount pay_player map x y force_find force_add destroy
		3006	insert remove name archname title slaying race decrease_ob_nr
		3007
2034	cf::object::player player	3008	cf::object::player
2035	cf::player peaceful	3009	player
2036	cf::map trigger	3010
		3011	cf::player
		3012	peaceful
		3013
		3014	cf::map
		3015	trigger
2037		3016
2038	=cut	3017	=cut
2039		3018
2040	for (	3019	for (
2041	["cf::object" => qw(contr pay_amount pay_player map)],	3020	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3021	insert remove inv name archname title slaying race
		3022	decrease_ob_nr destroy)],
2042	["cf::object::player" => qw(player)],	3023	["cf::object::player" => qw(player)],
2043	["cf::player" => qw(peaceful)],	3024	["cf::player" => qw(peaceful)],
2044	["cf::map" => qw(trigger)],	3025	["cf::map" => qw(trigger)],
2045	) {	3026	) {
2046	no strict 'refs';	3027	no strict 'refs';
…		…
2117	=back	3098	=back
2118		3099
2119	=cut	3100	=cut
2120		3101
2121	#############################################################################	3102	#############################################################################
		3103	# the server's init and main functions
2122		3104
2123	=head2 EXTENSION DATABASE SUPPORT	3105	sub load_facedata($) {
		3106	my ($path) = @_;
2124		3107
2125	Crossfire maintains a very simple database for extension use. It can	3108	# HACK to clear player env face cache, we need some signal framework
2126	currently store anything that can be serialised using Storable, which	3109	# for this (global event?)
2127	excludes objects.	3110	%ext::player_env::MUSIC_FACE_CACHE = ();
2128		3111
2129	The parameter C<$family> should best start with the name of the extension	3112	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2130	using it, it should be unique.
2131		3113
2132	=over 4	3114	warn "loading facedata from $path\n";
2133		3115
2134	=item $hashref = cf::db_get $family	3116	my $facedata;
		3117	0 < aio_load $path, $facedata
		3118	or die "$path: $!";
2135		3119
2136	Return a hashref for use by the extension C<$family>, which can be	3120	$facedata = Coro::Storable::thaw $facedata;
2137	modified. After modifications, you have to call C<cf::db_dirty> or
2138	C<cf::db_sync>.
2139		3121
2140	=item $value = cf::db_get $family => $key	3122	$facedata->{version} == 2
		3123	or cf::cleanup "$path: version mismatch, cannot proceed.";
2141		3124
2142	Returns a single value from the database	3125	# patch in the exptable
2143		3126	$facedata->{resource}{"res/exp_table"} = {
2144	=item cf::db_put $family => $hashref	3127	type => FT_RSRC,
2145		3128	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2146	Stores the given family hashref into the database. Updates are delayed, if
2147	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2148
2149	=item cf::db_put $family => $key => $value
2150
2151	Stores the given C<$value> in the family hash. Updates are delayed, if you
2152	want the data to be synced to disk immediately, use C<cf::db_sync>.
2153
2154	=item cf::db_dirty
2155
2156	Marks the database as dirty, to be updated at a later time.
2157
2158	=item cf::db_sync
2159
2160	Immediately write the database to disk I<if it is dirty>.
2161
2162	=cut
2163
2164	our $DB;
2165
2166	{
2167	my $path = cf::localdir . "/database.pst";
2168
2169	sub db_load() {
2170	$DB = stat $path ? Storable::retrieve $path : { };
2171	}
2172
2173	my $pid;
2174
2175	sub db_save() {
2176	waitpid $pid, 0 if $pid;
2177	if (0 == ($pid = fork)) {
2178	$DB->{_meta}{version} = 1;
2179	Storable::nstore $DB, "$path~";
2180	rename "$path~", $path;
2181	cf::_exit 0 if defined $pid;
2182	}
2183	}
2184
2185	my $dirty;
2186
2187	sub db_sync() {
2188	db_save if $dirty;
2189	undef $dirty;
2190	}
2191
2192	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2193	db_sync;
2194	});	3129	};
		3130	cf::cede_to_tick;
2195		3131
2196	sub db_dirty() {
2197	$dirty = 1;
2198	$idle->start;
2199	}	3132	{
		3133	my $faces = $facedata->{faceinfo};
2200		3134
2201	sub db_get($;$) {	3135	while (my ($face, $info) = each %$faces) {
2202	@_ >= 2	3136	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2203	? $DB->{$_[0]}{$_[1]}	3137	cf::face::set_visibility $idx, $info->{visibility};
2204	: ($DB->{$_[0]} ||= { })	3138	cf::face::set_magicmap $idx, $info->{magicmap};
2205	}	3139	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3140	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2206		3141
2207	sub db_put($$;$) {	3142	cf::cede_to_tick;
2208	if (@_ >= 3) {
2209	$DB->{$_[0]}{$_[1]} = $_[2];
2210	} else {
2211	$DB->{$_[0]} = $_[1];
2212	}
2213	db_dirty;
2214	}
2215
2216	cf::global->attach (
2217	prio => 10000,
2218	on_cleanup => sub {
2219	db_sync;
2220	},	3143	}
2221	);
2222	}
2223		3144
2224	#############################################################################	3145	while (my ($face, $info) = each %$faces) {
2225	# the server's main()	3146	next unless $info->{smooth};
		3147	my $idx = cf::face::find $face
		3148	or next;
		3149	if (my $smooth = cf::face::find $info->{smooth}) {
		3150	cf::face::set_smooth $idx, $smooth;
		3151	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3152	} else {
		3153	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3154	}
2226		3155
2227	sub cfg_load {	3156	cf::cede_to_tick;
		3157	}
		3158	}
		3159
		3160	{
		3161	my $anims = $facedata->{animinfo};
		3162
		3163	while (my ($anim, $info) = each %$anims) {
		3164	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3165	cf::cede_to_tick;
		3166	}
		3167
		3168	cf::anim::invalidate_all; # d'oh
		3169	}
		3170
		3171	{
		3172	# TODO: for gcfclient pleasure, we should give resources
		3173	# that gcfclient doesn't grok a >10000 face index.
		3174	my $res = $facedata->{resource};
		3175
		3176	my $soundconf = delete $res->{"res/sound.conf"};
		3177
		3178	while (my ($name, $info) = each %$res) {
		3179	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3180	my $data;
		3181
		3182	if ($info->{type} & 1) {
		3183	# prepend meta info
		3184
		3185	my $meta = $enc->encode ({
		3186	name => $name,
		3187	%{ $info->{meta} || {} },
		3188	});
		3189
		3190	$data = pack "(w/a*)*", $meta, $info->{data};
		3191	} else {
		3192	$data = $info->{data};
		3193	}
		3194
		3195	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3196	cf::face::set_type $idx, $info->{type};
		3197
		3198	cf::cede_to_tick;
		3199	}
		3200
		3201	if ($soundconf) {
		3202	$soundconf = $enc->decode (delete $soundconf->{data});
		3203
		3204	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3205	my $sound = $soundconf->{compat}[$_]
		3206	or next;
		3207
		3208	my $face = cf::face::find "sound/$sound->[1]";
		3209	cf::sound::set $sound->[0] => $face;
		3210	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3211	}
		3212
		3213	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3214	my $face = cf::face::find "sound/$v";
		3215	cf::sound::set $k => $face;
		3216	}
		3217	}
		3218	}
		3219
		3220	1
		3221	}
		3222
		3223	register_exticmd fx_want => sub {
		3224	my ($ns, $want) = @_;
		3225
		3226	while (my ($k, $v) = each %$want) {
		3227	$ns->fx_want ($k, $v);
		3228	}
		3229	};
		3230
		3231	sub reload_regions {
		3232	# HACK to clear player env face cache, we need some signal framework
		3233	# for this (global event?)
		3234	%ext::player_env::MUSIC_FACE_CACHE = ();
		3235
		3236	load_resource_file "$MAPDIR/regions"
		3237	or die "unable to load regions file\n";
		3238
		3239	for (cf::region::list) {
		3240	$_->{match} = qr/$_->{match}/
		3241	if exists $_->{match};
		3242	}
		3243	}
		3244
		3245	sub reload_facedata {
		3246	load_facedata "$DATADIR/facedata"
		3247	or die "unable to load facedata\n";
		3248	}
		3249
		3250	sub reload_archetypes {
		3251	load_resource_file "$DATADIR/archetypes"
		3252	or die "unable to load archetypes\n";
		3253	#d# NEED to laod twice to resolve forward references
		3254	# this really needs to be done in an extra post-pass
		3255	# (which needs to be synchronous, so solve it differently)
		3256	load_resource_file "$DATADIR/archetypes"
		3257	or die "unable to load archetypes\n";
		3258	}
		3259
		3260	sub reload_treasures {
		3261	load_resource_file "$DATADIR/treasures"
		3262	or die "unable to load treasurelists\n";
		3263	}
		3264
		3265	sub reload_resources {
		3266	warn "reloading resource files...\n";
		3267
		3268	reload_regions;
		3269	reload_facedata;
		3270	#reload_archetypes;#d#
		3271	reload_archetypes;
		3272	reload_treasures;
		3273
		3274	warn "finished reloading resource files\n";
		3275	}
		3276
		3277	sub init {
		3278	reload_resources;
		3279	}
		3280
		3281	sub reload_config {
2228	open my $fh, "<:utf8", cf::confdir . "/config"	3282	open my $fh, "<:utf8", "$CONFDIR/config"
2229	or return;	3283	or return;
2230		3284
2231	local $/;	3285	local $/;
2232	*CFG = YAML::Syck::Load <$fh>;	3286	*CFG = YAML::Syck::Load <$fh>;
2233		3287
…		…
2247		3301
2248	sub main {	3302	sub main {
2249	# we must not ever block the main coroutine	3303	# we must not ever block the main coroutine
2250	local $Coro::idle = sub {	3304	local $Coro::idle = sub {
2251	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3305	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3306	(async {
		3307	$Coro::current->{desc} = "IDLE BUG HANDLER";
2252	async { Event::one_event };	3308	Event::one_event;
		3309	})->prio (Coro::PRIO_MAX);
2253	};	3310	};
2254		3311
2255	cfg_load;	3312	reload_config;
2256	db_load;	3313	db_init;
2257	load_extensions;	3314	load_extensions;
		3315
		3316	$TICK_WATCHER->start;
2258	Event::loop;	3317	Event::loop;
2259	}	3318	}
2260		3319
2261	#############################################################################	3320	#############################################################################
2262	# initialisation and cleanup	3321	# initialisation and cleanup
2263		3322
2264	# install some emergency cleanup handlers	3323	# install some emergency cleanup handlers
2265	BEGIN {	3324	BEGIN {
2266	for my $signal (qw(INT HUP TERM)) {	3325	for my $signal (qw(INT HUP TERM)) {
2267	Event->signal (	3326	Event->signal (
		3327	reentrant => 0,
2268	data => WF_AUTOCANCEL,	3328	data => WF_AUTOCANCEL,
2269	signal => $signal,	3329	signal => $signal,
		3330	prio => 0,
2270	cb => sub {	3331	cb => sub {
2271	cf::cleanup "SIG$signal";	3332	cf::cleanup "SIG$signal";
2272	},	3333	},
2273	);	3334	);
2274	}	3335	}
2275	}	3336	}
2276		3337
		3338	sub write_runtime {
		3339	my $runtime = "$LOCALDIR/runtime";
		3340
		3341	# first touch the runtime file to show we are still running:
		3342	# the fsync below can take a very very long time.
		3343
		3344	IO::AIO::aio_utime $runtime, undef, undef;
		3345
		3346	my $guard = cf::lock_acquire "write_runtime";
		3347
		3348	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3349	or return;
		3350
		3351	my $value = $cf::RUNTIME + 90 + 10;
		3352	# 10 is the runtime save interval, for a monotonic clock
		3353	# 60 allows for the watchdog to kill the server.
		3354
		3355	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3356	and return;
		3357
		3358	# always fsync - this file is important
		3359	aio_fsync $fh
		3360	and return;
		3361
		3362	# touch it again to show we are up-to-date
		3363	aio_utime $fh, undef, undef;
		3364
		3365	close $fh
		3366	or return;
		3367
		3368	aio_rename "$runtime~", $runtime
		3369	and return;
		3370
		3371	warn "runtime file written.\n";
		3372
		3373	1
		3374	}
		3375
2277	sub emergency_save() {	3376	sub emergency_save() {
2278	my $freeze_guard = cf::freeze_mainloop;	3377	my $freeze_guard = cf::freeze_mainloop;
2279		3378
2280	warn "enter emergency perl save\n";	3379	warn "enter emergency perl save\n";
2281		3380
2282	cf::sync_job {	3381	cf::sync_job {
2283	# use a peculiar iteration method to avoid tripping on perl	3382	# use a peculiar iteration method to avoid tripping on perl
2284	# refcount bugs in for. also avoids problems with players	3383	# refcount bugs in for. also avoids problems with players
2285	# and maps saved/Destroyed asynchronously.	3384	# and maps saved/destroyed asynchronously.
2286	warn "begin emergency player save\n";	3385	warn "begin emergency player save\n";
2287	for my $login (keys %cf::PLAYER) {	3386	for my $login (keys %cf::PLAYER) {
2288	my $pl = $cf::PLAYER{$login} or next;	3387	my $pl = $cf::PLAYER{$login} or next;
2289	$pl->valid or next;	3388	$pl->valid or next;
		3389	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2290	$pl->save;	3390	$pl->save;
2291	}	3391	}
2292	warn "end emergency player save\n";	3392	warn "end emergency player save\n";
2293		3393
2294	warn "begin emergency map save\n";	3394	warn "begin emergency map save\n";
…		…
2296	my $map = $cf::MAP{$path} or next;	3396	my $map = $cf::MAP{$path} or next;
2297	$map->valid or next;	3397	$map->valid or next;
2298	$map->save;	3398	$map->save;
2299	}	3399	}
2300	warn "end emergency map save\n";	3400	warn "end emergency map save\n";
		3401
		3402	warn "begin emergency database checkpoint\n";
		3403	BDB::db_env_txn_checkpoint $DB_ENV;
		3404	warn "end emergency database checkpoint\n";
2301	};	3405	};
2302		3406
2303	warn "leave emergency perl save\n";	3407	warn "leave emergency perl save\n";
2304	}	3408	}
2305		3409
		3410	sub post_cleanup {
		3411	my ($make_core) = @_;
		3412
		3413	warn Carp::longmess "post_cleanup backtrace"
		3414	if $make_core;
		3415	}
		3416
2306	sub reload() {	3417	sub do_reload_perl() {
2307	# can/must only be called in main	3418	# can/must only be called in main
2308	if ($Coro::current != $Coro::main) {	3419	if ($Coro::current != $Coro::main) {
2309	warn "can only reload from main coroutine\n";	3420	warn "can only reload from main coroutine";
2310	return;	3421	return;
2311	}	3422	}
2312		3423
2313	warn "reloading...";	3424	warn "reloading...";
2314		3425
2315	warn "freezing server";	3426	warn "entering sync_job";
2316	my $guard = freeze_mainloop;	3427
		3428	cf::sync_job {
		3429	cf::write_runtime; # external watchdog should not bark
2317	cf::emergency_save;	3430	cf::emergency_save;
		3431	cf::write_runtime; # external watchdog should not bark
2318		3432
2319	warn "sync database to disk";	3433	warn "syncing database to disk";
2320	cf::db_sync;	3434	BDB::db_env_txn_checkpoint $DB_ENV;
2321	IO::AIO::flush;
2322		3435
2323	eval {
2324	# if anything goes wrong in here, we should simply crash as we already saved	3436	# if anything goes wrong in here, we should simply crash as we already saved
2325		3437
2326	warn "cancel all watchers";	3438	warn "cancelling all WF_AUTOCANCEL watchers";
2327	for (Event::all_watchers) {	3439	for (Event::all_watchers) {
2328	$_->cancel if $_->data & WF_AUTOCANCEL;	3440	$_->cancel if $_->data & WF_AUTOCANCEL;
2329	}	3441	}
2330		3442
		3443	warn "flushing outstanding aio requests";
		3444	for (;;) {
		3445	BDB::flush;
		3446	IO::AIO::flush;
		3447	Coro::cede_notself;
		3448	last unless IO::AIO::nreqs || BDB::nreqs;
		3449	warn "iterate...";
		3450	}
		3451
		3452	++$RELOAD;
		3453
2331	warn "cancel all extension coros";	3454	warn "cancelling all extension coros";
2332	$_->cancel for values %EXT_CORO;	3455	$_->cancel for values %EXT_CORO;
2333	%EXT_CORO = ();	3456	%EXT_CORO = ();
2334		3457
2335	warn "remove commands";	3458	warn "removing commands";
2336	%COMMAND = ();	3459	%COMMAND = ();
2337		3460
2338	warn "remove ext commands";	3461	warn "removing ext/exti commands";
2339	%EXTCMD = ();	3462	%EXTCMD = ();
		3463	%EXTICMD = ();
2340		3464
2341	warn "unload/nuke all extensions";	3465	warn "unloading/nuking all extensions";
2342	for my $pkg (@EXTS) {	3466	for my $pkg (@EXTS) {
2343	warn "... unloading $pkg";	3467	warn "... unloading $pkg";
2344		3468
2345	if (my $cb = $pkg->can ("unload")) {	3469	if (my $cb = $pkg->can ("unload")) {
2346	eval {	3470	eval {
…		…
2351		3475
2352	warn "... nuking $pkg";	3476	warn "... nuking $pkg";
2353	Symbol::delete_package $pkg;	3477	Symbol::delete_package $pkg;
2354	}	3478	}
2355		3479
2356	warn "unload all perl modules loaded from $LIBDIR";	3480	warn "unloading all perl modules loaded from $LIBDIR";
2357	while (my ($k, $v) = each %INC) {	3481	while (my ($k, $v) = each %INC) {
2358	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3482	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2359		3483
2360	warn "removing <$k>";	3484	warn "... unloading $k";
2361	delete $INC{$k};	3485	delete $INC{$k};
2362		3486
2363	$k =~ s/\.pm$//;	3487	$k =~ s/\.pm$//;
2364	$k =~ s/\//::/g;	3488	$k =~ s/\//::/g;
2365		3489
…		…
2368	}	3492	}
2369		3493
2370	Symbol::delete_package $k;	3494	Symbol::delete_package $k;
2371	}	3495	}
2372		3496
2373	warn "get rid of safe::, as good as possible";	3497	warn "getting rid of safe::, as good as possible";
2374	Symbol::delete_package "safe::$_"	3498	Symbol::delete_package "safe::$_"
2375	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3499	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2376		3500
2377	warn "unload cf.pm \"a bit\"";	3501	warn "unloading cf.pm \"a bit\"";
2378	delete $INC{"cf.pm"};	3502	delete $INC{"cf.pm"};
		3503	delete $INC{"cf/pod.pm"};
2379		3504
2380	# don't, removes xs symbols, too,	3505	# don't, removes xs symbols, too,
2381	# and global variables created in xs	3506	# and global variables created in xs
2382	#Symbol::delete_package __PACKAGE__;	3507	#Symbol::delete_package __PACKAGE__;
2383		3508
		3509	warn "unload completed, starting to reload now";
		3510
2384	warn "reloading cf.pm";	3511	warn "reloading cf.pm";
2385	require cf;	3512	require cf;
2386	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3513	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2387		3514
2388	warn "load config and database again";	3515	warn "loading config and database again";
2389	cf::cfg_load;	3516	cf::reload_config;
2390	cf::db_load;
2391		3517
2392	warn "load extensions";	3518	warn "loading extensions";
2393	cf::load_extensions;	3519	cf::load_extensions;
2394		3520
2395	warn "reattach attachments to objects/players";	3521	warn "reattaching attachments to objects/players";
2396	_global_reattach;	3522	_global_reattach; # objects, sockets
2397	warn "reattach attachments to maps";	3523	warn "reattaching attachments to maps";
2398	reattach $_ for values %MAP;	3524	reattach $_ for values %MAP;
2399	};	3525	warn "reattaching attachments to players";
		3526	reattach $_ for values %PLAYER;
2400		3527
2401	if ($@) {	3528	warn "leaving sync_job";
		3529
		3530	1
		3531	} or do {
2402	warn $@;	3532	warn $@;
2403	warn "error while reloading, exiting.";	3533	warn "error while reloading, exiting.";
2404	exit 1;	3534	exit 1;
2405	}	3535	};
2406		3536
2407	warn "reloaded";	3537	warn "reloaded";
2408	};	3538	};
2409		3539
2410	#############################################################################	3540	our $RELOAD_WATCHER; # used only during reload
2411		3541
2412	unless ($LINK_MAP) {	3542	sub reload_perl() {
2413	$LINK_MAP = cf::map::new;	3543	# doing reload synchronously and two reloads happen back-to-back,
		3544	# coro crashes during coro_state_free->destroy here.
2414		3545
2415	$LINK_MAP->width (41);	3546	$RELOAD_WATCHER ||= Event->timer (
2416	$LINK_MAP->height (41);	3547	reentrant => 0,
2417	$LINK_MAP->alloc;
2418	$LINK_MAP->path ("{link}");
2419	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2420	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2421
2422	# dirty hack because... archetypes are not yet loaded
2423	Event->timer (
2424	after => 10,	3548	after => 0,
		3549	data => WF_AUTOCANCEL,
2425	cb => sub {	3550	cb => sub {
2426	$_[0]->w->cancel;	3551	do_reload_perl;
2427		3552	undef $RELOAD_WATCHER;
2428	# provide some exits "home"
2429	my $exit = cf::object::new "exit";
2430
2431	$exit->slaying ($EMERGENCY_POSITION->[0]);
2432	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2433	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2434
2435	$LINK_MAP->insert ($exit->clone, 19, 19);
2436	$LINK_MAP->insert ($exit->clone, 19, 20);
2437	$LINK_MAP->insert ($exit->clone, 19, 21);
2438	$LINK_MAP->insert ($exit->clone, 20, 19);
2439	$LINK_MAP->insert ($exit->clone, 20, 21);
2440	$LINK_MAP->insert ($exit->clone, 21, 19);
2441	$LINK_MAP->insert ($exit->clone, 21, 20);
2442	$LINK_MAP->insert ($exit->clone, 21, 21);
2443
2444	$exit->destroy;
2445	});	3553	},
2446		3554	);
2447	$LINK_MAP->{deny_save} = 1;
2448	$LINK_MAP->{deny_reset} = 1;
2449
2450	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2451	}	3555	}
2452		3556
2453	register_command "reload" => sub {	3557	register_command "reload" => sub {
2454	my ($who, $arg) = @_;	3558	my ($who, $arg) = @_;
2455		3559
2456	if ($who->flag (FLAG_WIZ)) {	3560	if ($who->flag (FLAG_WIZ)) {
2457	$who->message ("start of reload.");
2458	reload;
2459	$who->message ("end of reload.");	3561	$who->message ("reloading server.");
		3562	async {
		3563	$Coro::current->{desc} = "perl_reload";
		3564	reload_perl;
		3565	};
2460	}	3566	}
2461	};	3567	};
2462		3568
2463	unshift @INC, $LIBDIR;	3569	unshift @INC, $LIBDIR;
		3570
		3571	my $bug_warning = 0;
		3572
		3573	our @WAIT_FOR_TICK;
		3574	our @WAIT_FOR_TICK_BEGIN;
		3575
		3576	sub wait_for_tick {
		3577	return unless $TICK_WATCHER->is_active;
		3578	return if $Coro::current == $Coro::main;
		3579
		3580	my $signal = new Coro::Signal;
		3581	push @WAIT_FOR_TICK, $signal;
		3582	$signal->wait;
		3583	}
		3584
		3585	sub wait_for_tick_begin {
		3586	return unless $TICK_WATCHER->is_active;
		3587	return if $Coro::current == $Coro::main;
		3588
		3589	my $signal = new Coro::Signal;
		3590	push @WAIT_FOR_TICK_BEGIN, $signal;
		3591	$signal->wait;
		3592	}
2464		3593
2465	$TICK_WATCHER = Event->timer (	3594	$TICK_WATCHER = Event->timer (
2466	reentrant => 0,	3595	reentrant => 0,
		3596	parked => 1,
2467	prio => 0,	3597	prio => 0,
2468	at => $NEXT_TICK || $TICK,	3598	at => $NEXT_TICK || $TICK,
2469	data => WF_AUTOCANCEL,	3599	data => WF_AUTOCANCEL,
2470	cb => sub {	3600	cb => sub {
		3601	if ($Coro::current != $Coro::main) {
		3602	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3603	unless ++$bug_warning > 10;
		3604	return;
		3605	}
		3606
		3607	$NOW = $tick_start = Event::time;
		3608
2471	cf::server_tick; # one server iteration	3609	cf::server_tick; # one server iteration
		3610
2472	$RUNTIME += $TICK;	3611	$RUNTIME += $TICK;
2473	$NEXT_TICK += $TICK;	3612	$NEXT_TICK += $TICK;
2474		3613
2475	$WAIT_FOR_TICK->broadcast;	3614	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2476	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3615	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3616	Coro::async_pool {
		3617	$Coro::current->{desc} = "runtime saver";
		3618	write_runtime
		3619	or warn "ERROR: unable to write runtime file: $!";
		3620	};
		3621	}
		3622
		3623	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3624	$sig->send;
		3625	}
		3626	while (my $sig = shift @WAIT_FOR_TICK) {
		3627	$sig->send;
		3628	}
		3629
		3630	$NOW = Event::time;
2477		3631
2478	# if we are delayed by four ticks or more, skip them all	3632	# if we are delayed by four ticks or more, skip them all
2479	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3633	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2480		3634
2481	$TICK_WATCHER->at ($NEXT_TICK);	3635	$TICK_WATCHER->at ($NEXT_TICK);
2482	$TICK_WATCHER->start;	3636	$TICK_WATCHER->start;
		3637
		3638	$LOAD = ($NOW - $tick_start) / $TICK;
		3639	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3640
		3641	_post_tick;
2483	},	3642	},
2484	);	3643	);
2485		3644
		3645	{
		3646	BDB::min_parallel 8;
2486	IO::AIO::max_poll_time $TICK * 0.2;	3647	BDB::max_poll_time $TICK * 0.1;
2487		3648	$BDB_POLL_WATCHER = Event->io (
2488	Event->io (	3649	reentrant => 0,
2489	fd => IO::AIO::poll_fileno,	3650	fd => BDB::poll_fileno,
2490	poll => 'r',	3651	poll => 'r',
2491	prio => 5,	3652	prio => 0,
2492	data => WF_AUTOCANCEL,
2493	cb => \&IO::AIO::poll_cb,
2494	);
2495
2496	Event->timer (
2497	data => WF_AUTOCANCEL,	3653	data => WF_AUTOCANCEL,
		3654	cb => \&BDB::poll_cb,
		3655	);
		3656
		3657	BDB::set_sync_prepare {
		3658	my $status;
		3659	my $current = $Coro::current;
		3660	(
		3661	sub {
		3662	$status = $!;
		3663	$current->ready; undef $current;
		3664	},
		3665	sub {
		3666	Coro::schedule while defined $current;
		3667	$! = $status;
		3668	},
		3669	)
		3670	};
		3671
		3672	unless ($DB_ENV) {
		3673	$DB_ENV = BDB::db_env_create;
		3674	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3675	| BDB::LOG_AUTOREMOVE, 1);
		3676	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3677	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3678
		3679	cf::sync_job {
		3680	eval {
		3681	BDB::db_env_open
		3682	$DB_ENV,
		3683	$BDBDIR,
		3684	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3685	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3686	0666;
		3687
		3688	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3689	};
		3690
		3691	cf::cleanup "db_env_open(db): $@" if $@;
		3692	};
		3693	}
		3694
		3695	$BDB_DEADLOCK_WATCHER = Event->timer (
2498	after => 0,	3696	after => 3,
2499	interval => 10,	3697	interval => 1,
		3698	hard => 1,
		3699	prio => 0,
		3700	data => WF_AUTOCANCEL,
2500	cb => sub {	3701	cb => sub {
2501	(Coro::unblock_sub {	3702	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2502	write_runtime	3703	},
2503	or warn "ERROR: unable to write runtime file: $!";	3704	);
		3705	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3706	after => 11,
		3707	interval => 60,
		3708	hard => 1,
		3709	prio => 0,
		3710	data => WF_AUTOCANCEL,
		3711	cb => sub {
		3712	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3713	},
		3714	);
		3715	$BDB_TRICKLE_WATCHER = Event->timer (
		3716	after => 5,
		3717	interval => 10,
		3718	hard => 1,
		3719	prio => 0,
		3720	data => WF_AUTOCANCEL,
		3721	cb => sub {
		3722	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3723	},
		3724	);
		3725	}
		3726
		3727	{
		3728	IO::AIO::min_parallel 8;
		3729
		3730	undef $Coro::AIO::WATCHER;
		3731	IO::AIO::max_poll_time $TICK * 0.1;
		3732	$AIO_POLL_WATCHER = Event->io (
		3733	reentrant => 0,
		3734	data => WF_AUTOCANCEL,
		3735	fd => IO::AIO::poll_fileno,
		3736	poll => 'r',
		3737	prio => 0,
		3738	cb => \&IO::AIO::poll_cb,
		3739	);
		3740	}
		3741
		3742	my $_log_backtrace;
		3743
		3744	sub _log_backtrace {
		3745	my ($msg, @addr) = @_;
		3746
		3747	$msg =~ s/\n//;
		3748
		3749	# limit the # of concurrent backtraces
		3750	if ($_log_backtrace < 2) {
		3751	++$_log_backtrace;
		3752	async {
		3753	$Coro::current->{desc} = "abt $msg";
		3754
		3755	my @bt = fork_call {
		3756	@addr = map { sprintf "%x", $_ } @addr;
		3757	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3758	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3759	or die "addr2line: $!";
		3760
		3761	my @funcs;
		3762	my @res = <$fh>;
		3763	chomp for @res;
		3764	while (@res) {
		3765	my ($func, $line) = splice @res, 0, 2, ();
		3766	push @funcs, "[$func] $line";
		3767	}
		3768
		3769	@funcs
		3770	};
		3771
		3772	LOG llevInfo, "[ABT] $msg\n";
		3773	LOG llevInfo, "[ABT] $_\n" for @bt;
		3774	--$_log_backtrace;
2504	})->();	3775	};
		3776	} else {
		3777	LOG llevInfo, "[ABT] $msg\n";
		3778	LOG llevInfo, "[ABT] [suppressed]\n";
2505	},	3779	}
2506	);	3780	}
		3781
		3782	# load additional modules
		3783	use cf::pod;
2507		3784
2508	END { cf::emergency_save }	3785	END { cf::emergency_save }
2509		3786
2510	1	3787	1
2511		3788

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