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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.165 by root, Fri Jan 12 22:09:22 2007 UTC vs.
Revision 1.393 by root, Fri Oct 26 04:47:00 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
478	$path
479	}
480
481	# the original (read-only) location
482	sub load_path {
483	my ($self) = @_;
484
485	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
486	}
487
488	# the temporary/swap location
489	sub save_path {
490	my ($self) = @_;
491
492	$self->{user_rel}
493	? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
494	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
495	}
496
497	# the unique path, undef == no special unique path
498	sub uniq_path {
499	my ($self) = @_;
500
501	$self->{user_rel} || $self->{ext}
502	? undef
503	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
504	}
505
506	sub customise_for {
507	my ($self, $map, $ob) = @_;
508
509	if ($map->per_player) {
510	return cf::map::find ("~" . $ob->name . "/" . $map->{path}{path});
511	}
512
513	$map
514	}
515
516	# this is somewhat ugly, but style maps do need special treatment
517	sub is_style_map {
518	$_[0]{path} =~ m{^/styles/}
519	}
520
521	sub load_orig {
522	my ($self) = @_;
523
524	&cf::map::load_map_header ($self->load_path)
525	}
526
527	sub load_temp {
528	my ($self) = @_;
529
530	&cf::map::load_map_header ($self->save_path)
531	}
532
533	sub unlink_save {
534	my ($self) = @_;
535
536	utf8::encode (my $save = $self->save_path);
537	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;
538	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";
539	}
540
541	package cf;
542		656
543	#############################################################################	657	#############################################################################
544		658
545	=head2 ATTACHABLE OBJECTS	659	=head2 ATTACHABLE OBJECTS
546		660
…		…
548	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")
549	to it. All such attachable objects support the following methods.	663	to it. All such attachable objects support the following methods.
550		664
551	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>
552	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
553	crossfire+).	667	Crossfire TRT).
554		668
555	=over 4	669	=over 4
556		670
557	=item $attachable->attach ($attachment, key => $value...)	671	=item $attachable->attach ($attachment, key => $value...)
558		672
…		…
672	our @CB_TYPE = (); # registry for type (cf-object class) based events	786	our @CB_TYPE = (); # registry for type (cf-object class) based events
673	our @CB_MAP = ();	787	our @CB_MAP = ();
674		788
675	my %attachment;	789	my %attachment;
676		790
		791	sub cf::attachable::thawer_merge {
		792	# simply override everything except _meta
		793	local $_[0]{_meta};
		794	%{$_[0]} = %{$_[1]};
		795	}
		796
677	sub _attach_cb($$$$) {	797	sub _attach_cb($$$$) {
678	my ($registry, $event, $prio, $cb) = @_;	798	my ($registry, $event, $prio, $cb) = @_;
679		799
680	use sort 'stable';	800	use sort 'stable';
681		801
…		…
715	$registry = $CB_TYPE[$object_type] ||= [];	835	$registry = $CB_TYPE[$object_type] ||= [];
716		836
717	} elsif ($type eq "subtype") {	837	} elsif ($type eq "subtype") {
718	defined $object_type or Carp::croak "subtype specified without type";	838	defined $object_type or Carp::croak "subtype specified without type";
719	my $object_subtype = shift @arg;	839	my $object_subtype = shift @arg;
720	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	840	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
721		841
722	} elsif ($type eq "package") {	842	} elsif ($type eq "package") {
723	my $pkg = shift @arg;	843	my $pkg = shift @arg;
724		844
725	while (my ($name, $id) = each %cb_id) {	845	while (my ($name, $id) = each %cb_id) {
…		…
754	_attach $registry, $klass, @attach;	874	_attach $registry, $klass, @attach;
755	}	875	}
756		876
757	$obj->{$name} = \%arg;	877	$obj->{$name} = \%arg;
758	} else {	878	} else {
759	warn "object uses attachment '$name' that is not available, postponing.\n";	879	warn "object uses attachment '$name' which is not available, postponing.\n";
760	}	880	}
761		881
762	$obj->{_attachment}{$name} = undef;	882	$obj->{_attachment}{$name} = undef;
763	}	883	}
764		884
…		…
766	if (ref $_[0]) {	886	if (ref $_[0]) {
767	_object_attach @_;	887	_object_attach @_;
768	} else {	888	} else {
769	_attach shift->_attach_registry, @_;	889	_attach shift->_attach_registry, @_;
770	}	890	}
		891	_recalc_want;
771	};	892	};
772		893
773	# all those should be optimised	894	# all those should be optimised
774	sub cf::attachable::detach {	895	sub cf::attachable::detach {
775	my ($obj, $name) = @_;	896	my ($obj, $name) = @_;
…		…
778	delete $obj->{_attachment}{$name};	899	delete $obj->{_attachment}{$name};
779	reattach ($obj);	900	reattach ($obj);
780	} else {	901	} else {
781	Carp::croak "cannot, currently, detach class attachments";	902	Carp::croak "cannot, currently, detach class attachments";
782	}	903	}
		904	_recalc_want;
783	};	905	};
784		906
785	sub cf::attachable::attached {	907	sub cf::attachable::attached {
786	my ($obj, $name) = @_;	908	my ($obj, $name) = @_;
787		909
…		…
802	";	924	";
803	die if $@;	925	die if $@;
804	}	926	}
805		927
806	our $override;	928	our $override;
807	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?
808		930
809	sub override {	931	sub override {
810	$override = 1;	932	$override = 1;
811	@invoke_results = ();	933	@INVOKE_RESULTS = (@_);
812	}	934	}
813		935
814	sub do_invoke {	936	sub do_invoke {
815	my $event = shift;	937	my $event = shift;
816	my $callbacks = shift;	938	my $callbacks = shift;
817		939
818	@invoke_results = ();	940	@INVOKE_RESULTS = ();
819		941
820	local $override;	942	local $override;
821		943
822	for (@$callbacks) {	944	for (@$callbacks) {
823	eval { &{$_->[1]} };	945	eval { &{$_->[1]} };
…		…
840		962
841	Generate an object-specific event with the given arguments.	963	Generate an object-specific event with the given arguments.
842		964
843	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
844	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
845	results (if you must, access C<@cf::invoke_results> directly).	967	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
846		968
847	=back	969	=back
848		970
849	=cut	971	=cut
850		972
851	#############################################################################	973	#############################################################################
852	# object support	974	# object support
		975
		976	sub _object_equal($$);
		977	sub _object_equal($$) {
		978	my ($a, $b) = @_;
		979
		980	return 0 unless (ref $a) eq (ref $b);
		981
		982	if ("HASH" eq ref $a) {
		983	my @ka = keys %$a;
		984	my @kb = keys %$b;
		985
		986	return 0 if @ka != @kb;
		987
		988	for (0 .. $#ka) {
		989	return 0 unless $ka[$_] eq $kb[$_];
		990	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		991	}
		992
		993	} elsif ("ARRAY" eq ref $a) {
		994
		995	return 0 if @$a != @$b;
		996
		997	for (0 .. $#$a) {
		998	return 0 unless _object_equal $a->[$_], $b->[$_];
		999	}
		1000
		1001	} elsif ($a ne $b) {
		1002	return 0;
		1003	}
		1004
		1005	1
		1006	}
		1007
		1008	our $SLOW_MERGES;#d#
		1009	sub _can_merge {
		1010	my ($ob1, $ob2) = @_;
		1011
		1012	++$SLOW_MERGES;#d#
		1013
		1014	# we do the slow way here
		1015	return _object_equal $ob1, $ob2
		1016	}
853		1017
854	sub reattach {	1018	sub reattach {
855	# basically do the same as instantiate, without calling instantiate	1019	# basically do the same as instantiate, without calling instantiate
856	my ($obj) = @_;	1020	my ($obj) = @_;
		1021
		1022	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
857		1023
858	my $registry = $obj->registry;	1024	my $registry = $obj->registry;
859		1025
860	@$registry = ();	1026	@$registry = ();
861		1027
…		…
902	sub object_freezer_save {	1068	sub object_freezer_save {
903	my ($filename, $rdata, $objs) = @_;	1069	my ($filename, $rdata, $objs) = @_;
904		1070
905	sync_job {	1071	sync_job {
906	if (length $$rdata) {	1072	if (length $$rdata) {
		1073	utf8::decode (my $decname = $filename);
907	warn sprintf "saving %s (%d,%d)\n",	1074	warn sprintf "saving %s (%d,%d)\n",
908	$filename, length $$rdata, scalar @$objs;	1075	$decname, length $$rdata, scalar @$objs;
909		1076
910	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1077	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
911	chmod SAVE_MODE, $fh;	1078	chmod SAVE_MODE, $fh;
912	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1079	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
913	aio_fsync $fh;	1080	aio_fsync $fh if $cf::USE_FSYNC;
914	close $fh;	1081	close $fh;
915		1082
916	if (@$objs) {	1083	if (@$objs) {
917	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) {
918	chmod SAVE_MODE, $fh;	1085	chmod SAVE_MODE, $fh;
919	my $data = Storable::nfreeze { version => 1, objs => $objs };	1086	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
920	aio_write $fh, 0, (length $data), $data, 0;	1087	aio_write $fh, 0, (length $data), $data, 0;
921	aio_fsync $fh;	1088	aio_fsync $fh if $cf::USE_FSYNC;
922	close $fh;	1089	close $fh;
923	aio_rename "$filename.pst~", "$filename.pst";	1090	aio_rename "$filename.pst~", "$filename.pst";
924	}	1091	}
925	} else {	1092	} else {
926	aio_unlink "$filename.pst";	1093	aio_unlink "$filename.pst";
…		…
932	}	1099	}
933	} else {	1100	} else {
934	aio_unlink $filename;	1101	aio_unlink $filename;
935	aio_unlink "$filename.pst";	1102	aio_unlink "$filename.pst";
936	}	1103	}
937	}	1104	};
938	}	1105	}
939		1106
940	sub object_freezer_as_string {	1107	sub object_freezer_as_string {
941	my ($rdata, $objs) = @_;	1108	my ($rdata, $objs) = @_;
942		1109
…		…
954	or return;	1121	or return;
955		1122
956	unless (aio_stat "$filename.pst") {	1123	unless (aio_stat "$filename.pst") {
957	(aio_load "$filename.pst", $av) >= 0	1124	(aio_load "$filename.pst", $av) >= 0
958	or return;	1125	or return;
		1126
959	$av = eval { (Storable::thaw $av)->{objs} };	1127	my $st = eval { Coro::Storable::thaw $av };
		1128	$av = $st->{objs};
960	}	1129	}
961		1130
		1131	utf8::decode (my $decname = $filename);
962	warn sprintf "loading %s (%d)\n",	1132	warn sprintf "loading %s (%d,%d)\n",
963	$filename, length $data, scalar @{$av || []};#d#	1133	$decname, length $data, scalar @{$av || []};
		1134
964	return ($data, $av);	1135	($data, $av)
965	}	1136	}
		1137
		1138	=head2 COMMAND CALLBACKS
		1139
		1140	=over 4
		1141
		1142	=cut
966		1143
967	#############################################################################	1144	#############################################################################
968	# command handling &c	1145	# command handling &c
969		1146
970	=item cf::register_command $name => \&callback($ob,$args);	1147	=item cf::register_command $name => \&callback($ob,$args);
…		…
983	push @{ $COMMAND{$name} }, [$caller, $cb];	1160	push @{ $COMMAND{$name} }, [$caller, $cb];
984	}	1161	}
985		1162
986	=item cf::register_extcmd $name => \&callback($pl,$packet);	1163	=item cf::register_extcmd $name => \&callback($pl,$packet);
987		1164
988	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.
989		1170
990	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
991	called.	1172	called.
992		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
993	=cut	1185	=cut
994		1186
995	sub register_extcmd {	1187	sub register_extcmd {
996	my ($name, $cb) = @_;	1188	my ($name, $cb) = @_;
997		1189
998	$EXTCMD{$name} = $cb;	1190	$EXTCMD{$name} = $cb;
		1191	}
		1192
		1193	sub register_exticmd {
		1194	my ($name, $cb) = @_;
		1195
		1196	$EXTICMD{$name} = $cb;
999	}	1197	}
1000		1198
1001	cf::player->attach (	1199	cf::player->attach (
1002	on_command => sub {	1200	on_command => sub {
1003	my ($pl, $name, $params) = @_;	1201	my ($pl, $name, $params) = @_;
…		…
1012	cf::override;	1210	cf::override;
1013	},	1211	},
1014	on_extcmd => sub {	1212	on_extcmd => sub {
1015	my ($pl, $buf) = @_;	1213	my ($pl, $buf) = @_;
1016		1214
1017	my $msg = eval { from_json $buf };	1215	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
1018		1216
1019	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
1020	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1225	if (my $cb = $EXTCMD{$type}) {
1021	if (my %reply = $cb->($pl, $msg)) {	1226	@reply = $cb->($pl, @payload);
1022	$pl->ext_reply ($msg->{msgid}, %reply);
1023	}
1024	}	1227	}
		1228
		1229	$pl->ext_reply ($reply, @reply)
		1230	if $reply;
		1231
1025	} else {	1232	} else {
1026	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1233	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
1027	}	1234	}
1028		1235
1029	cf::override;	1236	cf::override;
1030	},	1237	},
1031	);	1238	);
1032		1239
1033	sub load_extension {
1034	my ($path) = @_;
1035
1036	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
1037	my $base = $1;
1038	my $pkg = $1;
1039	$pkg =~ s/[^[:word:]]/_/g;
1040	$pkg = "ext::$pkg";
1041
1042	warn "... loading '$path' into '$pkg'\n";
1043
1044	open my $fh, "<:utf8", $path
1045	or die "$path: $!";
1046
1047	my $source =
1048	"package $pkg; use strict; use utf8;\n"
1049	. "#line 1 \"$path\"\n{\n"
1050	. (do { local $/; <$fh> })
1051	. "\n};\n1";
1052
1053	eval $source
1054	or die $@ ? "$path: $@\n"
1055	: "extension disabled.\n";
1056
1057	push @EXTS, $pkg;
1058	}
1059
1060	sub load_extensions {	1240	sub load_extensions {
		1241	cf::sync_job {
		1242	my %todo;
		1243
1061	for my $ext (<$LIBDIR/*.ext>) {	1244	for my $path (<$LIBDIR/*.ext>) {
1062	next unless -r $ext;	1245	next unless -r $path;
1063	eval {	1246
1064	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;
1065	1	1304	}
1066	} or warn "$ext not loaded: $@";	1305
		1306	skip:
		1307	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1308	unless $progress;
		1309	}
1067	}	1310	};
1068	}	1311	}
1069		1312
1070	#############################################################################	1313	#############################################################################
1071	# load/save/clean perl data associated with a map
1072		1314
1073	*cf::mapsupport::on_clean = sub {	1315	=back
1074	my ($map) = @_;
1075
1076	my $path = $map->tmpname;
1077	defined $path or return;
1078
1079	unlink "$path.pst";
1080	};
1081
1082	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1083
1084	#############################################################################
1085		1316
1086	=head2 CORE EXTENSIONS	1317	=head2 CORE EXTENSIONS
1087		1318
1088	Functions and methods that extend core crossfire objects.	1319	Functions and methods that extend core crossfire objects.
1089		1320
…		…
1095		1326
1096	=head3 cf::player	1327	=head3 cf::player
1097		1328
1098	=over 4	1329	=over 4
1099		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
1100	=item cf::player::find $login	1345	=item cf::player::find $login
1101		1346
1102	Returns the given player object, loading it if necessary (might block).	1347	Returns the given player object, loading it if necessary (might block).
1103		1348
1104	=cut	1349	=cut
1105		1350
1106	sub playerdir($) {	1351	sub playerdir($) {
1107	cf::localdir	1352	"$PLAYERDIR/"
1108	. "/"
1109	. cf::playerdir
1110	. "/"
1111	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1353	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1112	}	1354	}
1113		1355
1114	sub path($) {	1356	sub path($) {
1115	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1357	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1116		1358
1117	(playerdir $login) . "/$login.pl"	1359	(playerdir $login) . "/playerdata"
1118	}	1360	}
1119		1361
1120	sub find_active($) {	1362	sub find_active($) {
1121	$cf::PLAYER{$_[0]}	1363	$cf::PLAYER{$_[0]}
1122	and $cf::PLAYER{$_[0]}->active	1364	and $cf::PLAYER{$_[0]}->active
…		…
1125		1367
1126	sub exists($) {	1368	sub exists($) {
1127	my ($login) = @_;	1369	my ($login) = @_;
1128		1370
1129	$cf::PLAYER{$login}	1371	$cf::PLAYER{$login}
1130	or cf::sync_job { !aio_stat $login }	1372	or cf::sync_job { !aio_stat path $login }
1131	}	1373	}
1132		1374
1133	sub find($) {	1375	sub find($) {
1134	return $cf::PLAYER{$_[0]} || do {	1376	return $cf::PLAYER{$_[0]} || do {
1135	my $login = $_[0];	1377	my $login = $_[0];
1136		1378
1137	my $guard = cf::lock_acquire "user_find:$login";	1379	my $guard = cf::lock_acquire "user_find:$login";
1138		1380
1139	$cf::PLAYER{$_[0]} || do {	1381	$cf::PLAYER{$_[0]} || do {
1140	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
1141	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;
1142	$cf::PLAYER{$login} = $pl	1396	$cf::PLAYER{$login} = $pl
1143	}	1397	}
1144	}	1398	}
1145	}	1399	}
1146		1400
…		…
1156		1410
1157	aio_mkdir playerdir $pl, 0770;	1411	aio_mkdir playerdir $pl, 0770;
1158	$pl->{last_save} = $cf::RUNTIME;	1412	$pl->{last_save} = $cf::RUNTIME;
1159		1413
1160	$pl->save_pl ($path);	1414	$pl->save_pl ($path);
1161	Coro::cede;	1415	cf::cede_to_tick;
1162	}	1416	}
1163		1417
1164	sub new($) {	1418	sub new($) {
1165	my ($login) = @_;	1419	my ($login) = @_;
1166		1420
…		…
1172	$cf::PLAYER{$login} = $self;	1426	$cf::PLAYER{$login} = $self;
1173		1427
1174	$self	1428	$self
1175	}	1429	}
1176		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
1177	=item $pl->quit_character	1441	=item $pl->quit_character
1178		1442
1179	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
1180	be destroyed. May block for a long time.	1444	be destroyed. May block for a long time.
1181		1445
1182	=cut	1446	=cut
1183		1447
1184	sub quit_character {	1448	sub quit_character {
1185	my ($pl) = @_;	1449	my ($pl) = @_;
		1450
		1451	my $name = $pl->ob->name;
1186		1452
1187	$pl->{deny_save} = 1;	1453	$pl->{deny_save} = 1;
1188	$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
1189		1455
1190	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1456	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1195	my $path = playerdir $pl;	1461	my $path = playerdir $pl;
1196	my $temp = "$path~$cf::RUNTIME~deleting~";	1462	my $temp = "$path~$cf::RUNTIME~deleting~";
1197	aio_rename $path, $temp;	1463	aio_rename $path, $temp;
1198	delete $cf::PLAYER{$pl->ob->name};	1464	delete $cf::PLAYER{$pl->ob->name};
1199	$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
1200	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;
1201	}	1487	}
1202		1488
1203	=item cf::player::list_logins	1489	=item cf::player::list_logins
1204		1490
1205	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
1206	while and may block, so not sync_job-capable, ever.	1492	while and may block, so not sync_job-capable, ever.
1207		1493
1208	=cut	1494	=cut
1209		1495
1210	sub list_logins {	1496	sub list_logins {
1211	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1497	my $dirs = aio_readdir $PLAYERDIR
1212	or return [];	1498	or return [];
1213		1499
1214	my @logins;	1500	my @logins;
1215		1501
1216	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") {
1217	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1507	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1218	aio_read $fh, 0, 512, my $buf, 0 or next;	1508	aio_read $fh, 0, 512, my $buf, 0 or next;
1219	$buf !~ /^password -------------$/m or next; # official not-valid tag	1509	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1510	}
1220		1511
1221	utf8::decode $login;	1512	utf8::decode $login;
1222	push @logins, $login;	1513	push @logins, $login;
1223	}	1514	}
1224		1515
1225	\@logins	1516	\@logins
1226	}	1517	}
1227		1518
1228	=item $player->maps	1519	=item $player->maps
1229		1520
1230	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
1231	player. May block.	1522	player. May block.
1232		1523
1233	=cut	1524	=cut
1234		1525
1235	sub maps($) {	1526	sub maps($) {
1236	my ($pl) = @_;	1527	my ($pl) = @_;
		1528
		1529	$pl = ref $pl ? $pl->ob->name : $pl;
1237		1530
1238	my $files = aio_readdir playerdir $pl	1531	my $files = aio_readdir playerdir $pl
1239	or return;	1532	or return;
1240		1533
1241	my @paths;	1534	my @paths;
…		…
1243	for (@$files) {	1536	for (@$files) {
1244	utf8::decode $_;	1537	utf8::decode $_;
1245	next if /\.(?:pl|pst)$/;	1538	next if /\.(?:pl|pst)$/;
1246	next unless /^$PATH_SEP/o;	1539	next unless /^$PATH_SEP/o;
1247		1540
1248	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1541	push @paths, cf::map::normalise "~$pl/$_";
1249	}	1542	}
1250		1543
1251	\@paths	1544	\@paths
1252	}	1545	}
1253		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	# match a pod interior sequence sans C<< >>
		1558	(?:
		1559	\ (.*?)\ (?{ $group = $^N })
		1560	| < (??{$interior}) >
		1561	)
		1562	}x;
		1563
		1564	sub expand_cfpod {
		1565	my ($self, $pod) = @_;
		1566
		1567	my $xml;
		1568
		1569	while () {
		1570	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1571	$group = $1;
		1572
		1573	$group =~ s/&/&amp;/g;
		1574	$group =~ s/</&lt;/g;
		1575
		1576	$xml .= $group;
		1577	} elsif ($pod =~ m%\G
		1578	([BCGHITU])
		1579	<
		1580	(?:
		1581	([^<>]*) (?{ $group = $^N })
		1582	| < $interior >
		1583	)
		1584	>
		1585	%gcsx
		1586	) {
		1587	my ($code, $data) = ($1, $group);
		1588
		1589	if ($code eq "B") {
		1590	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1591	} elsif ($code eq "I") {
		1592	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1593	} elsif ($code eq "U") {
		1594	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1595	} elsif ($code eq "C") {
		1596	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1597	} elsif ($code eq "T") {
		1598	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1599	} elsif ($code eq "G") {
		1600	my ($male, $female) = split /\|/, $data;
		1601	$data = $self->gender ? $female : $male;
		1602	$xml .= expand_cfpod ($self, $data);
		1603	} elsif ($code eq "H") {
		1604	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1605	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1606	"")
		1607	[$self->{hintmode}];
		1608	} else {
		1609	$xml .= "error processing '$code($data)' directive";
		1610	}
		1611	} else {
		1612	if ($pod =~ /\G(.+)/) {
		1613	warn "parse error while expanding $pod (at $1)";
		1614	}
		1615	last;
		1616	}
		1617	}
		1618
		1619	for ($xml) {
		1620	# create single paragraphs (very hackish)
		1621	s/(?<=\S)\n(?=\w)/ /g;
		1622
		1623	# compress some whitespace
		1624	s/\s+\n/\n/g; # ws line-ends
		1625	s/\n\n+/\n/g; # double lines
		1626	s/^\n+//; # beginning lines
		1627	s/\n+$//; # ending lines
		1628	}
		1629
		1630	$xml
		1631	}
		1632
		1633	no re 'eval';
		1634
		1635	sub hintmode {
		1636	$_[0]{hintmode} = $_[1] if @_ > 1;
		1637	$_[0]{hintmode}
		1638	}
		1639
1254	=item $player->ext_reply ($msgid, $msgtype, %msg)	1640	=item $player->ext_reply ($msgid, @msg)
1255		1641
1256	Sends an ext reply to the player.	1642	Sends an ext reply to the player.
1257		1643
1258	=cut	1644	=cut
1259		1645
1260	sub ext_reply($$$%) {	1646	sub ext_reply($$@) {
1261	my ($self, $id, %msg) = @_;	1647	my ($self, $id, @msg) = @_;
1262		1648
1263	$msg{msgid} = $id;	1649	$self->ns->ext_reply ($id, @msg)
1264
1265	$self->send ("ext " . cf::to_json \%msg);
1266	}	1650	}
1267		1651
1268	package cf;	1652	=item $player->ext_msg ($type, @msg)
		1653
		1654	Sends an ext event to the client.
		1655
		1656	=cut
		1657
		1658	sub ext_msg($$@) {
		1659	my ($self, $type, @msg) = @_;
		1660
		1661	$self->ns->ext_msg ($type, @msg);
		1662	}
		1663
		1664	=head3 cf::region
		1665
		1666	=over 4
		1667
		1668	=cut
		1669
		1670	package cf::region;
		1671
		1672	=item cf::region::find_by_path $path
		1673
		1674	Tries to decuce the likely region for a map knowing only its path.
		1675
		1676	=cut
		1677
		1678	sub find_by_path($) {
		1679	my ($path) = @_;
		1680
		1681	my ($match, $specificity);
		1682
		1683	for my $region (list) {
		1684	if ($region->{match} && $path =~ $region->{match}) {
		1685	($match, $specificity) = ($region, $region->specificity)
		1686	if $region->specificity > $specificity;
		1687	}
		1688	}
		1689
		1690	$match
		1691	}
1269		1692
1270	=back	1693	=back
1271
1272		1694
1273	=head3 cf::map	1695	=head3 cf::map
1274		1696
1275	=over 4	1697	=over 4
1276		1698
…		…
1279	package cf::map;	1701	package cf::map;
1280		1702
1281	use Fcntl;	1703	use Fcntl;
1282	use Coro::AIO;	1704	use Coro::AIO;
1283		1705
		1706	use overload
		1707	'""' => \&as_string,
		1708	fallback => 1;
		1709
1284	our $MAX_RESET = 3600;	1710	our $MAX_RESET = 3600;
1285	our $DEFAULT_RESET = 3000;	1711	our $DEFAULT_RESET = 3000;
1286		1712
1287	sub generate_random_map {	1713	sub generate_random_map {
1288	my ($path, $rmp) = @_;	1714	my ($self, $rmp) = @_;
1289
1290	# mit "rum" bekleckern, nicht	1715	# mit "rum" bekleckern, nicht
1291	cf::map::_create_random_map (	1716	$self->_create_random_map (
1292	$path,
1293	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1717	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1294	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1718	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1295	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1719	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1296	$rmp->{exit_on_final_map},	1720	$rmp->{exit_on_final_map},
1297	$rmp->{xsize}, $rmp->{ysize},	1721	$rmp->{xsize}, $rmp->{ysize},
…		…
1302	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1726	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1303	(cf::region::find $rmp->{region}), $rmp->{custom}	1727	(cf::region::find $rmp->{region}), $rmp->{custom}
1304	)	1728	)
1305	}	1729	}
1306		1730
		1731	=item cf::map->register ($regex, $prio)
		1732
		1733	Register a handler for the map path matching the given regex at the
		1734	givne priority (higher is better, built-in handlers have priority 0, the
		1735	default).
		1736
		1737	=cut
		1738
		1739	sub register {
		1740	my (undef, $regex, $prio) = @_;
		1741	my $pkg = caller;
		1742
		1743	no strict;
		1744	push @{"$pkg\::ISA"}, __PACKAGE__;
		1745
		1746	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1747	}
		1748
		1749	# also paths starting with '/'
		1750	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1751
		1752	sub thawer_merge {
		1753	my ($self, $merge) = @_;
		1754
		1755	# we have to keep some variables in memory intact
		1756	local $self->{path};
		1757	local $self->{load_path};
		1758
		1759	$self->SUPER::thawer_merge ($merge);
		1760	}
		1761
		1762	sub normalise {
		1763	my ($path, $base) = @_;
		1764
		1765	$path = "$path"; # make sure its a string
		1766
		1767	$path =~ s/\.map$//;
		1768
		1769	# map plan:
		1770	#
		1771	# /! non-realised random map exit (special hack!)
		1772	# {... are special paths that are not being touched
		1773	# ?xxx/... are special absolute paths
		1774	# ?random/... random maps
		1775	# /... normal maps
		1776	# ~user/... per-player map of a specific user
		1777
		1778	$path =~ s/$PATH_SEP/\//go;
		1779
		1780	# treat it as relative path if it starts with
		1781	# something that looks reasonable
		1782	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1783	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1784
		1785	$base =~ s{[^/]+/?$}{};
		1786	$path = "$base/$path";
		1787	}
		1788
		1789	for ($path) {
		1790	redo if s{//}{/};
		1791	redo if s{/\.?/}{/};
		1792	redo if s{/[^/]+/\.\./}{/};
		1793	}
		1794
		1795	$path
		1796	}
		1797
		1798	sub new_from_path {
		1799	my (undef, $path, $base) = @_;
		1800
		1801	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1802
		1803	$path = normalise $path, $base;
		1804
		1805	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1806	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1807	my $self = bless cf::map::new, $pkg;
		1808	$self->{path} = $path; $self->path ($path);
		1809	$self->init; # pass $1 etc.
		1810	return $self;
		1811	}
		1812	}
		1813
		1814	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1815	()
		1816	}
		1817
		1818	sub init {
		1819	my ($self) = @_;
		1820
		1821	$self
		1822	}
		1823
		1824	sub as_string {
		1825	my ($self) = @_;
		1826
		1827	"$self->{path}"
		1828	}
		1829
		1830	# the displayed name, this is a one way mapping
		1831	sub visible_name {
		1832	&as_string
		1833	}
		1834
		1835	# the original (read-only) location
		1836	sub load_path {
		1837	my ($self) = @_;
		1838
		1839	"$MAPDIR/$self->{path}.map"
		1840	}
		1841
		1842	# the temporary/swap location
		1843	sub save_path {
		1844	my ($self) = @_;
		1845
		1846	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1847	"$TMPDIR/$path.map"
		1848	}
		1849
		1850	# the unique path, undef == no special unique path
		1851	sub uniq_path {
		1852	my ($self) = @_;
		1853
		1854	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1855	"$UNIQUEDIR/$path"
		1856	}
		1857
1307	# and all this just because we cannot iterate over	1858	# and all this just because we cannot iterate over
1308	# all maps in C++...	1859	# all maps in C++...
1309	sub change_all_map_light {	1860	sub change_all_map_light {
1310	my ($change) = @_;	1861	my ($change) = @_;
1311		1862
1312	$_->change_map_light ($change)	1863	$_->change_map_light ($change)
1313	for grep $_->outdoor, values %cf::MAP;	1864	for grep $_->outdoor, values %cf::MAP;
1314	}	1865	}
1315		1866
		1867	sub decay_objects {
		1868	my ($self) = @_;
		1869
		1870	return if $self->{deny_reset};
		1871
		1872	$self->do_decay_objects;
		1873	}
		1874
		1875	sub unlink_save {
		1876	my ($self) = @_;
		1877
		1878	utf8::encode (my $save = $self->save_path);
		1879	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1880	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1881	}
		1882
1316	sub load_map_header($) {	1883	sub load_header_from($) {
1317	my ($path) = @_;	1884	my ($self, $path) = @_;
1318		1885
1319	utf8::encode $path;	1886	utf8::encode $path;
1320	aio_open $path, O_RDONLY, 0	1887	my $f = new_from_file cf::object::thawer $path
1321	or return;	1888	or return;
1322		1889
1323	my $map = cf::map::new	1890	$self->_load_header ($f)
1324	or return;	1891	or return;
1325		1892
1326	# for better error messages only, will be overwritten later	1893	local $MAP_LOADING{$self->{path}} = $self;
1327	$map->path ($path);	1894	$f->resolve_delayed_derefs;
1328		1895
1329	$map->load_header ($path)	1896	$self->{load_path} = $path;
		1897
		1898	1
		1899	}
		1900
		1901	sub load_header_orig {
		1902	my ($self) = @_;
		1903
		1904	$self->load_header_from ($self->load_path)
		1905	}
		1906
		1907	sub load_header_temp {
		1908	my ($self) = @_;
		1909
		1910	$self->load_header_from ($self->save_path)
		1911	}
		1912
		1913	sub prepare_temp {
		1914	my ($self) = @_;
		1915
		1916	$self->last_access ((delete $self->{last_access})
		1917	|| $cf::RUNTIME); #d#
		1918	# safety
		1919	$self->{instantiate_time} = $cf::RUNTIME
		1920	if $self->{instantiate_time} > $cf::RUNTIME;
		1921	}
		1922
		1923	sub prepare_orig {
		1924	my ($self) = @_;
		1925
		1926	$self->{load_original} = 1;
		1927	$self->{instantiate_time} = $cf::RUNTIME;
		1928	$self->last_access ($cf::RUNTIME);
		1929	$self->instantiate;
		1930	}
		1931
		1932	sub load_header {
		1933	my ($self) = @_;
		1934
		1935	if ($self->load_header_temp) {
		1936	$self->prepare_temp;
		1937	} else {
		1938	$self->load_header_orig
1330	or return;	1939	or return;
		1940	$self->prepare_orig;
		1941	}
1331		1942
1332	$map->{load_path} = $path;	1943	$self->{deny_reset} = 1
		1944	if $self->no_reset;
1333		1945
1334	$map	1946	$self->default_region (cf::region::find_by_path $self->{path})
		1947	unless $self->default_region;
		1948
		1949	1
1335	}	1950	}
1336		1951
1337	sub find;	1952	sub find;
1338	sub find {	1953	sub find {
1339	my ($path, $origin) = @_;	1954	my ($path, $origin) = @_;
1340		1955
1341	#warn "find<$path,$origin>\n";#d#
1342
1343	$path = new cf::path $path, $origin && $origin->path;	1956	$path = normalise $path, $origin && $origin->path;
1344	my $key = $path->as_string;
1345		1957
		1958	cf::lock_wait "map_data:$path";#d#remove
1346	cf::lock_wait "map_find:$key";	1959	cf::lock_wait "map_find:$path";
1347		1960
1348	$cf::MAP{$key} || do {	1961	$cf::MAP{$path} || do {
1349	my $guard = cf::lock_acquire "map_find:$key";	1962	my $guard1 = cf::lock_acquire "map_find:$path";
		1963	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1350		1964
1351	# do it the slow way	1965	my $map = new_from_path cf::map $path
1352	my $map = $path->load_temp;
1353
1354	Coro::cede;
1355
1356	if ($map) {
1357	$map->last_access ((delete $map->{last_access})
1358	|| $cf::RUNTIME); #d#
1359	# safety
1360	$map->{instantiate_time} = $cf::RUNTIME
1361	if $map->{instantiate_time} > $cf::RUNTIME;
1362	} else {
1363	$map = $path->load_orig
1364	or return;	1966	or return;
1365		1967
1366	$map->{load_original} = 1;
1367	$map->{instantiate_time} = $cf::RUNTIME;
1368	$map->last_access ($cf::RUNTIME);
1369	$map->instantiate;
1370
1371	# per-player maps become, after loading, normal maps
1372	$map->per_player (0) if $path->{user_rel};
1373	}
1374
1375	$map->path ($key);
1376	$map->{path} = $path;
1377	$map->{last_save} = $cf::RUNTIME;	1968	$map->{last_save} = $cf::RUNTIME;
1378		1969
1379	Coro::cede;	1970	$map->load_header
		1971	or return;
1380		1972
1381	if ($map->should_reset) {	1973	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1974	# doing this can freeze the server in a sync job, obviously
		1975	#$cf::WAIT_FOR_TICK->wait;
		1976	undef $guard1;
		1977	undef $guard2;
1382	$map->reset;	1978	$map->reset;
1383	undef $guard;
1384	$map = find $path	1979	return find $path;
1385	or return;
1386	}	1980	}
1387		1981
1388	$cf::MAP{$key} = $map	1982	$cf::MAP{$path} = $map
1389	}	1983	}
1390	}	1984	}
		1985
		1986	sub pre_load { }
		1987	sub post_load { }
1391		1988
1392	sub load {	1989	sub load {
1393	my ($self) = @_;	1990	my ($self) = @_;
1394		1991
		1992	local $self->{deny_reset} = 1; # loading can take a long time
		1993
1395	my $path = $self->{path};	1994	my $path = $self->{path};
		1995
		1996	{
1396	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1997	my $guard = cf::lock_acquire "map_data:$path";
1397		1998
		1999	return unless $self->valid;
1398	return if $self->in_memory != cf::MAP_SWAPPED;	2000	return unless $self->in_memory == cf::MAP_SWAPPED;
1399		2001
1400	$self->in_memory (cf::MAP_LOADING);	2002	$self->in_memory (cf::MAP_LOADING);
1401		2003
1402	$self->alloc;	2004	$self->alloc;
1403	$self->load_objects ($self->{load_path}, 1)	2005
		2006	$self->pre_load;
		2007	cf::cede_to_tick;
		2008
		2009	my $f = new_from_file cf::object::thawer $self->{load_path};
		2010	$f->skip_block;
		2011	$self->_load_objects ($f)
1404	or return;	2012	or return;
1405		2013
1406	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2014	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1407	if delete $self->{load_original};	2015	if delete $self->{load_original};
1408		2016
1409	if (my $uniq = $path->uniq_path) {	2017	if (my $uniq = $self->uniq_path) {
1410	utf8::encode $uniq;	2018	utf8::encode $uniq;
1411	if (aio_open $uniq, O_RDONLY, 0) {	2019	unless (aio_stat $uniq) {
		2020	if (my $f = new_from_file cf::object::thawer $uniq) {
1412	$self->clear_unique_items;	2021	$self->clear_unique_items;
1413	$self->load_objects ($uniq, 0);	2022	$self->_load_objects ($f);
		2023	$f->resolve_delayed_derefs;
		2024	}
1414	}	2025	}
1415	}	2026	}
1416		2027
1417	Coro::cede;	2028	$f->resolve_delayed_derefs;
1418		2029
		2030	cf::cede_to_tick;
1419	# now do the right thing for maps	2031	# now do the right thing for maps
1420	$self->link_multipart_objects;	2032	$self->link_multipart_objects;
1421
1422	if ($self->{path}->is_style_map) {
1423	$self->{deny_save} = 1;
1424	$self->{deny_reset} = 1;
1425	} else {
1426	$self->decay_objects;
1427	$self->fix_auto_apply;
1428	$self->update_buttons;
1429	$self->set_darkness_map;
1430	$self->difficulty ($self->estimate_difficulty)	2033	$self->difficulty ($self->estimate_difficulty)
1431	unless $self->difficulty;	2034	unless $self->difficulty;
		2035	cf::cede_to_tick;
		2036
		2037	unless ($self->{deny_activate}) {
		2038	$self->decay_objects;
		2039	$self->fix_auto_apply;
		2040	$self->update_buttons;
		2041	cf::cede_to_tick;
		2042	$self->set_darkness_map;
		2043	cf::cede_to_tick;
1432	$self->activate;	2044	$self->activate;
1433	}	2045	}
1434		2046
1435	Coro::cede;	2047	$self->{last_save} = $cf::RUNTIME;
		2048	$self->last_access ($cf::RUNTIME);
1436		2049
1437	$self->in_memory (cf::MAP_IN_MEMORY);	2050	$self->in_memory (cf::MAP_IN_MEMORY);
		2051	}
		2052
		2053	$self->post_load;
		2054	}
		2055
		2056	sub customise_for {
		2057	my ($self, $ob) = @_;
		2058
		2059	return find "~" . $ob->name . "/" . $self->{path}
		2060	if $self->per_player;
		2061
		2062	# return find "?party/" . $ob->name . "/" . $self->{path}
		2063	# if $self->per_party;
		2064
		2065	$self
1438	}	2066	}
1439		2067
1440	# find and load all maps in the 3x3 area around a map	2068	# find and load all maps in the 3x3 area around a map
1441	sub load_diag {	2069	sub load_neighbours {
1442	my ($map) = @_;	2070	my ($map) = @_;
1443		2071
1444	my @diag; # diagonal neighbours	2072	my @neigh; # diagonal neighbours
1445		2073
1446	for (0 .. 3) {	2074	for (0 .. 3) {
1447	my $neigh = $map->tile_path ($_)	2075	my $neigh = $map->tile_path ($_)
1448	or next;	2076	or next;
1449	$neigh = find $neigh, $map	2077	$neigh = find $neigh, $map
1450	or next;	2078	or next;
1451	$neigh->load;	2079	$neigh->load;
1452		2080
		2081	push @neigh,
1453	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2082	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1454	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2083	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1455	}	2084	}
1456		2085
1457	for (@diag) {	2086	for (grep defined $_->[0], @neigh) {
		2087	my ($path, $origin) = @$_;
1458	my $neigh = find @$_	2088	my $neigh = find $path, $origin
1459	or next;	2089	or next;
1460	$neigh->load;	2090	$neigh->load;
1461	}	2091	}
1462	}	2092	}
1463		2093
…		…
1468	}	2098	}
1469		2099
1470	sub do_load_sync {	2100	sub do_load_sync {
1471	my ($map) = @_;	2101	my ($map) = @_;
1472		2102
		2103	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2104	if $Coro::current == $Coro::main;
		2105
1473	cf::sync_job { $map->load };	2106	cf::sync_job { $map->load };
1474	}	2107	}
1475		2108
1476	our %MAP_PREFETCH;	2109	our %MAP_PREFETCH;
		2110	our $MAP_PREFETCHER = undef;
		2111
		2112	sub find_async {
		2113	my ($path, $origin, $load) = @_;
		2114
		2115	$path = normalise $path, $origin && $origin->{path};
		2116
		2117	if (my $map = $cf::MAP{$path}) {
		2118	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2119	}
		2120
		2121	$MAP_PREFETCH{$path} |= $load;
		2122
1477	our $MAP_PREFETCHER = Coro::async {	2123	$MAP_PREFETCHER ||= cf::async {
1478	while () {	2124	$Coro::current->{desc} = "map prefetcher";
		2125
1479	while (%MAP_PREFETCH) {	2126	while (%MAP_PREFETCH) {
1480	my $key = each %MAP_PREFETCH	2127	while (my ($k, $v) = each %MAP_PREFETCH) {
1481	or next;	2128	if (my $map = find $k) {
		2129	$map->load if $v;
		2130	}
		2131
1482	my $path = delete $MAP_PREFETCH{$key};	2132	delete $MAP_PREFETCH{$k};
1483
1484	my $map = find $path
1485	or next;
1486	$map->load;
1487	}	2133	}
1488	Coro::schedule;	2134	}
		2135	undef $MAP_PREFETCHER;
1489	}	2136	};
1490	};
1491
1492	sub find_async {
1493	my ($path, $origin) = @_;
1494
1495	$path = new cf::path $path, $origin && $origin->path;
1496	my $key = $path->as_string;
1497
1498	if (my $map = $cf::MAP{$key}) {
1499	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1500	}
1501
1502	$MAP_PREFETCH{$key} = $path;
1503	$MAP_PREFETCHER->ready;	2137	$MAP_PREFETCHER->prio (6);
1504		2138
1505	()	2139	()
1506	}	2140	}
1507		2141
1508	sub save {	2142	sub save {
1509	my ($self) = @_;	2143	my ($self) = @_;
1510		2144
1511	my $lock = cf::lock_acquire "map_data:" . $self->path;	2145	my $lock = cf::lock_acquire "map_data:$self->{path}";
1512		2146
1513	$self->{last_save} = $cf::RUNTIME;	2147	$self->{last_save} = $cf::RUNTIME;
1514		2148
1515	return unless $self->dirty;	2149	return unless $self->dirty;
1516		2150
1517	my $save = $self->{path}->save_path; utf8::encode $save;	2151	my $save = $self->save_path; utf8::encode $save;
1518	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2152	my $uniq = $self->uniq_path; utf8::encode $uniq;
1519		2153
1520	$self->{load_path} = $save;	2154	$self->{load_path} = $save;
1521		2155
1522	return if $self->{deny_save};	2156	return if $self->{deny_save};
1523		2157
1524	local $self->{last_access} = $self->last_access;#d#	2158	local $self->{last_access} = $self->last_access;#d#
1525		2159
1526	cf::async {	2160	cf::async {
		2161	$Coro::current->{desc} = "map player save";
1527	$_->contr->save for $self->players;	2162	$_->contr->save for $self->players;
1528	};	2163	};
1529		2164
1530	if ($uniq) {	2165	if ($uniq) {
1531	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2166	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1532	$self->save_objects ($uniq, cf::IO_UNIQUES);	2167	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1533	} else {	2168	} else {
1534	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2169	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1535	}	2170	}
1536	}	2171	}
1537		2172
1538	sub swap_out {	2173	sub swap_out {
1539	my ($self) = @_;	2174	my ($self) = @_;
1540		2175
1541	# save first because save cedes	2176	# save first because save cedes
1542	$self->save;	2177	$self->save;
1543		2178
1544	my $lock = cf::lock_acquire "map_data:" . $self->path;	2179	my $lock = cf::lock_acquire "map_data:$self->{path}";
1545		2180
1546	return if $self->players;	2181	return if $self->players;
1547	return if $self->in_memory != cf::MAP_IN_MEMORY;	2182	return if $self->in_memory != cf::MAP_IN_MEMORY;
1548	return if $self->{deny_save};	2183	return if $self->{deny_save};
1549		2184
		2185	$self->in_memory (cf::MAP_SWAPPED);
		2186
		2187	$self->deactivate;
		2188	$_->clear_links_to ($self) for values %cf::MAP;
1550	$self->clear;	2189	$self->clear;
1551	$self->in_memory (cf::MAP_SWAPPED);
1552	}	2190	}
1553		2191
1554	sub reset_at {	2192	sub reset_at {
1555	my ($self) = @_;	2193	my ($self) = @_;
1556		2194
1557	# TODO: safety, remove and allow resettable per-player maps	2195	# TODO: safety, remove and allow resettable per-player maps
1558	return 1e99 if $self->{path}{user_rel};
1559	return 1e99 if $self->{deny_reset};	2196	return 1e99 if $self->{deny_reset};
1560		2197
1561	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2198	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1562	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2199	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1563		2200
…		…
1568	my ($self) = @_;	2205	my ($self) = @_;
1569		2206
1570	$self->reset_at <= $cf::RUNTIME	2207	$self->reset_at <= $cf::RUNTIME
1571	}	2208	}
1572		2209
1573	sub rename {
1574	my ($self, $new_path) = @_;
1575
1576	$self->{path}->unlink_save;
1577
1578	delete $cf::MAP{$self->path};
1579	$self->{path} = new cf::path $new_path;
1580	$self->path ($self->{path}->as_string);
1581	$cf::MAP{$self->path} = $self;
1582
1583	$self->save;
1584	}
1585
1586	sub reset {	2210	sub reset {
1587	my ($self) = @_;	2211	my ($self) = @_;
1588		2212
1589	my $lock = cf::lock_acquire "map_data:" . $self->path;	2213	my $lock = cf::lock_acquire "map_data:$self->{path}";
1590		2214
1591	return if $self->players;	2215	return if $self->players;
1592	return if $self->{path}{user_rel};#d#
1593		2216
1594	warn "resetting map ", $self->path;#d#	2217	warn "resetting map ", $self->path;
		2218
		2219	$self->in_memory (cf::MAP_SWAPPED);
		2220
		2221	# need to save uniques path
		2222	unless ($self->{deny_save}) {
		2223	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2224
		2225	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2226	if $uniq;
		2227	}
1595		2228
1596	delete $cf::MAP{$self->path};	2229	delete $cf::MAP{$self->path};
1597		2230
		2231	$self->deactivate;
1598	$_->clear_links_to ($self) for values %cf::MAP;	2232	$_->clear_links_to ($self) for values %cf::MAP;
		2233	$self->clear;
1599		2234
1600	$self->{path}->unlink_save;	2235	$self->unlink_save;
1601	$self->destroy;	2236	$self->destroy;
1602	}	2237	}
1603		2238
1604	my $nuke_counter = "aaaa";	2239	my $nuke_counter = "aaaa";
1605		2240
1606	sub nuke {	2241	sub nuke {
1607	my ($self) = @_;	2242	my ($self) = @_;
1608		2243
		2244	{
		2245	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2246
		2247	delete $cf::MAP{$self->path};
		2248
		2249	$self->unlink_save;
		2250
		2251	bless $self, "cf::map";
		2252	delete $self->{deny_reset};
1609	$self->{deny_save} = 1;	2253	$self->{deny_save} = 1;
1610	$self->reset_timeout (1);	2254	$self->reset_timeout (1);
1611	$self->rename ("{nuke}/" . ($nuke_counter++));	2255	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2256
		2257	$cf::MAP{$self->path} = $self;
		2258	}
		2259
1612	$self->reset; # polite request, might not happen	2260	$self->reset; # polite request, might not happen
1613	}	2261	}
1614		2262
		2263	=item $maps = cf::map::tmp_maps
		2264
		2265	Returns an arrayref with all map paths of currently instantiated and saved
		2266	maps. May block.
		2267
		2268	=cut
		2269
		2270	sub tmp_maps() {
		2271	[
		2272	map {
		2273	utf8::decode $_;
		2274	/\.map$/
		2275	? normalise $_
		2276	: ()
		2277	} @{ aio_readdir $TMPDIR or [] }
		2278	]
		2279	}
		2280
		2281	=item $maps = cf::map::random_maps
		2282
		2283	Returns an arrayref with all map paths of currently instantiated and saved
		2284	random maps. May block.
		2285
		2286	=cut
		2287
		2288	sub random_maps() {
		2289	[
		2290	map {
		2291	utf8::decode $_;
		2292	/\.map$/
		2293	? normalise "?random/$_"
		2294	: ()
		2295	} @{ aio_readdir $RANDOMDIR or [] }
		2296	]
		2297	}
		2298
1615	=item cf::map::unique_maps	2299	=item cf::map::unique_maps
1616		2300
1617	Returns an arrayref of cf::path's of all shared maps that have	2301	Returns an arrayref of paths of all shared maps that have
1618	instantiated unique items. May block.	2302	instantiated unique items. May block.
1619		2303
1620	=cut	2304	=cut
1621		2305
1622	sub unique_maps() {	2306	sub unique_maps() {
1623	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2307	[
1624	or return;	2308	map {
1625
1626	my @paths;
1627
1628	for (@$files) {
1629	utf8::decode $_;	2309	utf8::decode $_;
1630	next if /\.pst$/;	2310	/\.map$/
1631	next unless /^$PATH_SEP/o;	2311	? normalise $_
1632		2312	: ()
1633	push @paths, new cf::path $_;	2313	} @{ aio_readdir $UNIQUEDIR or [] }
1634	}	2314	]
1635
1636	\@paths
1637	}	2315	}
1638		2316
1639	package cf;	2317	package cf;
1640		2318
1641	=back	2319	=back
…		…
1659	map { $_, inv_recursive_ $_->inv } @_	2337	map { $_, inv_recursive_ $_->inv } @_
1660	}	2338	}
1661		2339
1662	sub inv_recursive {	2340	sub inv_recursive {
1663	inv_recursive_ inv $_[0]	2341	inv_recursive_ inv $_[0]
		2342	}
		2343
		2344	=item $ref = $ob->ref
		2345
		2346	creates and returns a persistent reference to an objetc that can be stored as a string.
		2347
		2348	=item $ob = cf::object::deref ($refstring)
		2349
		2350	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2351	even if the object actually exists. May block.
		2352
		2353	=cut
		2354
		2355	sub deref {
		2356	my ($ref) = @_;
		2357
		2358	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2359	my ($uuid, $name) = ($1, $2);
		2360	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2361	or return;
		2362	$pl->ob->uuid eq $uuid
		2363	or return;
		2364
		2365	$pl->ob
		2366	} else {
		2367	warn "$ref: cannot resolve object reference\n";
		2368	undef
		2369	}
1664	}	2370	}
1665		2371
1666	package cf;	2372	package cf;
1667		2373
1668	=back	2374	=back
…		…
1687		2393
1688	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2394	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1689		2395
1690	if ($self->{record_replies}) {	2396	if ($self->{record_replies}) {
1691	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2397	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2398
1692	} else {	2399	} else {
		2400	my $pl = $self->contr;
		2401
		2402	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2403	my $dialog = $pl->{npc_dialog};
		2404	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2405
		2406	} else {
1693	$msg = $npc->name . " says: $msg" if $npc;	2407	$msg = $npc->name . " says: $msg" if $npc;
1694	$self->message ($msg, $flags);	2408	$self->message ($msg, $flags);
		2409	}
1695	}	2410	}
		2411	}
		2412
		2413	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2414
		2415	=cut
		2416
		2417	sub cf::object::send_msg {
		2418	my $pl = shift->contr
		2419	or return;
		2420	$pl->send_msg (@_);
1696	}	2421	}
1697		2422
1698	=item $player_object->may ("access")	2423	=item $player_object->may ("access")
1699		2424
1700	Returns wether the given player is authorized to access resource "access"	2425	Returns wether the given player is authorized to access resource "access"
…		…
1713		2438
1714	=item $player_object->enter_link	2439	=item $player_object->enter_link
1715		2440
1716	Freezes the player and moves him/her to a special map (C<{link}>).	2441	Freezes the player and moves him/her to a special map (C<{link}>).
1717		2442
1718	The player should be reaosnably safe there for short amounts of time. You	2443	The player should be reasonably safe there for short amounts of time. You
1719	I<MUST> call C<leave_link> as soon as possible, though.	2444	I<MUST> call C<leave_link> as soon as possible, though.
1720		2445
		2446	Will never block.
		2447
1721	=item $player_object->leave_link ($map, $x, $y)	2448	=item $player_object->leave_link ($map, $x, $y)
1722		2449
1723	Moves the player out of the specila link map onto the given map. If the	2450	Moves the player out of the special C<{link}> map onto the specified
1724	map is not valid (or omitted), the player will be moved back to the	2451	map. If the map is not valid (or omitted), the player will be moved back
1725	location he/she was before the call to C<enter_link>, or, if that fails,	2452	to the location he/she was before the call to C<enter_link>, or, if that
1726	to the emergency map position.	2453	fails, to the emergency map position.
1727		2454
1728	Might block.	2455	Might block.
1729		2456
1730	=cut	2457	=cut
		2458
		2459	sub link_map {
		2460	unless ($LINK_MAP) {
		2461	$LINK_MAP = cf::map::find "{link}"
		2462	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2463	$LINK_MAP->load;
		2464	}
		2465
		2466	$LINK_MAP
		2467	}
1731		2468
1732	sub cf::object::player::enter_link {	2469	sub cf::object::player::enter_link {
1733	my ($self) = @_;	2470	my ($self) = @_;
1734		2471
1735	$self->deactivate_recursive;	2472	$self->deactivate_recursive;
1736		2473
1737	return if $self->map == $LINK_MAP;	2474	return if UNIVERSAL::isa $self->map, "ext::map_link";
1738		2475
1739	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2476	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1740	if $self->map;	2477	if $self->map && $self->map->{path} ne "{link}";
1741		2478
1742	$self->enter_map ($LINK_MAP, 20, 20);	2479	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1743	}	2480	}
1744		2481
1745	sub cf::object::player::leave_link {	2482	sub cf::object::player::leave_link {
1746	my ($self, $map, $x, $y) = @_;	2483	my ($self, $map, $x, $y) = @_;
		2484
		2485	return unless $self->contr->active;
1747		2486
1748	my $link_pos = delete $self->{_link_pos};	2487	my $link_pos = delete $self->{_link_pos};
1749		2488
1750	unless ($map) {	2489	unless ($map) {
1751	# restore original map position	2490	# restore original map position
…		…
1765	# use -1 or undef as default coordinates, not 0, 0	2504	# use -1 or undef as default coordinates, not 0, 0
1766	($x, $y) = ($map->enter_x, $map->enter_y)	2505	($x, $y) = ($map->enter_x, $map->enter_y)
1767	if $x <=0 && $y <= 0;	2506	if $x <=0 && $y <= 0;
1768		2507
1769	$map->load;	2508	$map->load;
1770	$map->load_diag;	2509	$map->load_neighbours;
1771		2510
1772	return unless $self->contr->active;	2511	return unless $self->contr->active;
1773	$self->activate_recursive;	2512	$self->activate_recursive;
		2513
		2514	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1774	$self->enter_map ($map, $x, $y);	2515	$self->enter_map ($map, $x, $y);
1775	}	2516	}
1776		2517
1777	cf::player->attach (	2518	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1778	on_logout => sub {
1779	my ($pl) = @_;
1780		2519
1781	# abort map switching before logout	2520	Moves the player to the given map-path and coordinates by first freezing
1782	if ($pl->ob->{_link_pos}) {	2521	her, loading and preparing them map, calling the provided $check callback
1783	cf::sync_job {	2522	that has to return the map if sucecssful, and then unfreezes the player on
1784	$pl->ob->leave_link	2523	the new (success) or old (failed) map position. In either case, $done will
1785	};	2524	be called at the end of this process.
1786	}
1787	},
1788	on_login => sub {
1789	my ($pl) = @_;
1790		2525
1791	# try to abort aborted map switching on player login :)
1792	# should happen only on crashes
1793	if ($pl->ob->{_link_pos}) {
1794	$pl->ob->enter_link;
1795	(async {
1796	# we need this sleep as the login has a concurrent enter_exit running
1797	# and this sleep increases chances of the player not ending up in scorn
1798	$pl->ob->reply (undef,
1799	"There was an internal problem at your last logout, "
1800	. "the server will try to bring you to your intended destination in a second.",
1801	cf::NDI_RED);
1802	Coro::Timer::sleep 1;
1803	$pl->ob->leave_link;
1804	})->prio (2);
1805	}
1806	},
1807	);
1808
1809	=item $player_object->goto ($path, $x, $y)
1810
1811	=cut	2526	=cut
		2527
		2528	our $GOTOGEN;
1812		2529
1813	sub cf::object::player::goto {	2530	sub cf::object::player::goto {
1814	my ($self, $path, $x, $y) = @_;	2531	my ($self, $path, $x, $y, $check, $done) = @_;
1815		2532
1816	$path = new cf::path $path;	2533	# do generation counting so two concurrent goto's will be executed in-order
		2534	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1817		2535
1818	$self->enter_link;	2536	$self->enter_link;
1819		2537
1820	(async {	2538	(async {
1821	my $map = cf::map::find $path->as_string;	2539	$Coro::current->{desc} = "player::goto $path $x $y";
1822	$map = $map->{path}->customise_for ($map, $self) if $map;
1823		2540
1824	# warn "entering ", $map->path, " at ($x, $y)\n"	2541	# *tag paths override both path and x|y
		2542	if ($path =~ /^\*(.*)$/) {
		2543	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2544	my $ob = $obs[rand @obs];
		2545
		2546	# see if we actually can go there
		2547	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2548	$ob = $obs[rand @obs];
		2549	} else {
		2550	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2551	}
		2552	# else put us there anyways for now #d#
		2553
		2554	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2555	} else {
		2556	($path, $x, $y) = (undef, undef, undef);
		2557	}
		2558	}
		2559
		2560	my $map = eval {
		2561	my $map = defined $path ? cf::map::find $path : undef;
		2562
1825	# if $map;	2563	if ($map) {
1826		2564	$map = $map->customise_for ($self);
		2565	$map = $check->($map) if $check && $map;
		2566	} else {
1827	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2567	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2568	}
1828		2569
		2570	$map
		2571	};
		2572
		2573	if ($@) {
		2574	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2575	LOG llevError | logBacktrace, Carp::longmess $@;
		2576	}
		2577
		2578	if ($gen == $self->{_goto_generation}) {
		2579	delete $self->{_goto_generation};
1829	$self->leave_link ($map, $x, $y);	2580	$self->leave_link ($map, $x, $y);
		2581	}
		2582
		2583	$done->() if $done;
1830	})->prio (1);	2584	})->prio (1);
1831	}	2585	}
1832		2586
1833	=item $player_object->enter_exit ($exit_object)	2587	=item $player_object->enter_exit ($exit_object)
1834		2588
…		…
1836		2590
1837	sub parse_random_map_params {	2591	sub parse_random_map_params {
1838	my ($spec) = @_;	2592	my ($spec) = @_;
1839		2593
1840	my $rmp = { # defaults	2594	my $rmp = { # defaults
1841	xsize => 10,	2595	xsize => (cf::rndm 15, 40),
1842	ysize => 10,	2596	ysize => (cf::rndm 15, 40),
		2597	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2598	#layout => string,
1843	};	2599	};
1844		2600
1845	for (split /\n/, $spec) {	2601	for (split /\n/, $spec) {
1846	my ($k, $v) = split /\s+/, $_, 2;	2602	my ($k, $v) = split /\s+/, $_, 2;
1847		2603
…		…
1851	$rmp	2607	$rmp
1852	}	2608	}
1853		2609
1854	sub prepare_random_map {	2610	sub prepare_random_map {
1855	my ($exit) = @_;	2611	my ($exit) = @_;
		2612
		2613	my $guard = cf::lock_acquire "exit_prepare:$exit";
1856		2614
1857	# all this does is basically replace the /! path by	2615	# all this does is basically replace the /! path by
1858	# a new random map path (?random/...) with a seed	2616	# a new random map path (?random/...) with a seed
1859	# that depends on the exit object	2617	# that depends on the exit object
1860		2618
1861	my $rmp = parse_random_map_params $exit->msg;	2619	my $rmp = parse_random_map_params $exit->msg;
1862		2620
1863	if ($exit->map) {	2621	if ($exit->map) {
1864	$rmp->{region} = $exit->map->region_name;	2622	$rmp->{region} = $exit->region->name;
1865	$rmp->{origin_map} = $exit->map->path;	2623	$rmp->{origin_map} = $exit->map->path;
1866	$rmp->{origin_x} = $exit->x;	2624	$rmp->{origin_x} = $exit->x;
1867	$rmp->{origin_y} = $exit->y;	2625	$rmp->{origin_y} = $exit->y;
1868	}	2626	}
1869		2627
1870	$rmp->{random_seed} ||= $exit->random_seed;	2628	$rmp->{random_seed} ||= $exit->random_seed;
1871		2629
1872	my $data = cf::to_json $rmp;	2630	my $data = cf::to_json $rmp;
1873	my $md5 = Digest::MD5::md5_hex $data;	2631	my $md5 = Digest::MD5::md5_hex $data;
		2632	my $meta = "$RANDOMDIR/$md5.meta";
1874		2633
1875	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2634	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1876	aio_write $fh, 0, (length $data), $data, 0;	2635	aio_write $fh, 0, (length $data), $data, 0;
		2636	undef $fh;
		2637	aio_rename "$meta~", $meta;
1877		2638
1878	$exit->slaying ("?random/$md5");	2639	$exit->slaying ("?random/$md5");
1879	$exit->msg (undef);	2640	$exit->msg (undef);
1880	}	2641	}
1881	}	2642	}
…		…
1883	sub cf::object::player::enter_exit {	2644	sub cf::object::player::enter_exit {
1884	my ($self, $exit) = @_;	2645	my ($self, $exit) = @_;
1885		2646
1886	return unless $self->type == cf::PLAYER;	2647	return unless $self->type == cf::PLAYER;
1887		2648
		2649	if ($exit->slaying eq "/!") {
		2650	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2651	# the problem is that $exit might not survive long enough
		2652	# so it needs to be done right now, right here
		2653	cf::sync_job { prepare_random_map $exit };
		2654	}
		2655
		2656	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2657	my $hp = $exit->stats->hp;
		2658	my $sp = $exit->stats->sp;
		2659
1888	$self->enter_link;	2660	$self->enter_link;
1889		2661
		2662	# if exit is damned, update players death & WoR home-position
		2663	$self->contr->savebed ($slaying, $hp, $sp)
		2664	if $exit->flag (FLAG_DAMNED);
		2665
1890	(async {	2666	(async {
		2667	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2668
1891	$self->deactivate_recursive; # just to be sure	2669	$self->deactivate_recursive; # just to be sure
1892	unless (eval {	2670	unless (eval {
1893	prepare_random_map $exit	2671	$self->goto ($slaying, $hp, $sp);
1894	if $exit->slaying eq "/!";
1895
1896	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1897	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1898		2672
1899	1;	2673	1;
1900	}) {	2674	}) {
1901	$self->message ("Something went wrong deep within the crossfire server. "	2675	$self->message ("Something went wrong deep within the crossfire server. "
1902	. "I'll try to bring you back to the map you were before. "	2676	. "I'll try to bring you back to the map you were before. "
1903	. "Please report this to the dungeon master!",	2677	. "Please report this to the dungeon master!",
1904	cf::NDI_UNIQUE | cf::NDI_RED);	2678	cf::NDI_UNIQUE | cf::NDI_RED);
1905		2679
1906	warn "ERROR in enter_exit: $@";	2680	warn "ERROR in enter_exit: $@";
1907	$self->leave_link;	2681	$self->leave_link;
1908	}	2682	}
1909	})->prio (1);	2683	})->prio (1);
…		…
1922		2696
1923	sub cf::client::send_drawinfo {	2697	sub cf::client::send_drawinfo {
1924	my ($self, $text, $flags) = @_;	2698	my ($self, $text, $flags) = @_;
1925		2699
1926	utf8::encode $text;	2700	utf8::encode $text;
1927	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2701	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1928	}	2702	}
1929		2703
		2704	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2705
		2706	Send a drawinfo or msg packet to the client, formatting the msg for the
		2707	client if neccessary. C<$type> should be a string identifying the type of
		2708	the message, with C<log> being the default. If C<$color> is negative, suppress
		2709	the message unless the client supports the msg packet.
		2710
		2711	=cut
		2712
		2713	# non-persistent channels (usually the info channel)
		2714	our %CHANNEL = (
		2715	"c/identify" => {
		2716	id => "infobox",
		2717	title => "Identify",
		2718	reply => undef,
		2719	tooltip => "Items recently identified",
		2720	},
		2721	"c/examine" => {
		2722	id => "infobox",
		2723	title => "Examine",
		2724	reply => undef,
		2725	tooltip => "Signs and other items you examined",
		2726	},
		2727	"c/book" => {
		2728	id => "infobox",
		2729	title => "Book",
		2730	reply => undef,
		2731	tooltip => "The contents of a note or book",
		2732	},
		2733	"c/lookat" => {
		2734	id => "infobox",
		2735	title => "Look",
		2736	reply => undef,
		2737	tooltip => "What you saw there",
		2738	},
		2739	"c/who" => {
		2740	id => "infobox",
		2741	title => "Players",
		2742	reply => undef,
		2743	tooltip => "Shows players who are currently online",
		2744	},
		2745	"c/body" => {
		2746	id => "infobox",
		2747	title => "Body Parts",
		2748	reply => undef,
		2749	tooltip => "Shows which body parts you posess and are available",
		2750	},
		2751	"c/uptime" => {
		2752	id => "infobox",
		2753	title => "Uptime",
		2754	reply => undef,
		2755	tooltip => "How long the server has been running since last restart",
		2756	},
		2757	"c/mapinfo" => {
		2758	id => "infobox",
		2759	title => "Map Info",
		2760	reply => undef,
		2761	tooltip => "Information related to the maps",
		2762	},
		2763	);
		2764
		2765	sub cf::client::send_msg {
		2766	my ($self, $channel, $msg, $color, @extra) = @_;
		2767
		2768	$msg = $self->pl->expand_cfpod ($msg);
		2769
		2770	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2771
		2772	# check predefined channels, for the benefit of C
		2773	if ($CHANNEL{$channel}) {
		2774	$channel = $CHANNEL{$channel};
		2775
		2776	$self->ext_msg (channel_info => $channel)
		2777	if $self->can_msg;
		2778
		2779	$channel = $channel->{id};
		2780
		2781	} elsif (ref $channel) {
		2782	# send meta info to client, if not yet sent
		2783	unless (exists $self->{channel}{$channel->{id}}) {
		2784	$self->{channel}{$channel->{id}} = $channel;
		2785	$self->ext_msg (channel_info => $channel)
		2786	if $self->can_msg;
		2787	}
		2788
		2789	$channel = $channel->{id};
		2790	}
		2791
		2792	return unless @extra || length $msg;
		2793
		2794	if ($self->can_msg) {
		2795	# default colour, mask it out
		2796	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2797	if $color & cf::NDI_DEF;
		2798
		2799	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2800	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2801	} else {
		2802	if ($color >= 0) {
		2803	# replace some tags by gcfclient-compatible ones
		2804	for ($msg) {
		2805	1 while
		2806	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2807	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2808	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2809	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2810	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2811	}
		2812
		2813	$color &= cf::NDI_COLOR_MASK;
		2814
		2815	utf8::encode $msg;
		2816
		2817	if (0 && $msg =~ /\[/) {
		2818	# COMMAND/INFO
		2819	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2820	} else {
		2821	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2822	$self->send_packet ("drawinfo $color $msg")
		2823	}
		2824	}
		2825	}
		2826	}
		2827
		2828	=item $client->ext_msg ($type, @msg)
		2829
		2830	Sends an ext event to the client.
		2831
		2832	=cut
		2833
		2834	sub cf::client::ext_msg($$@) {
		2835	my ($self, $type, @msg) = @_;
		2836
		2837	if ($self->extcmd == 2) {
		2838	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2839	} elsif ($self->extcmd == 1) { # TODO: remove
		2840	push @msg, msgtype => "event_$type";
		2841	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2842	}
		2843	}
		2844
		2845	=item $client->ext_reply ($msgid, @msg)
		2846
		2847	Sends an ext reply to the client.
		2848
		2849	=cut
		2850
		2851	sub cf::client::ext_reply($$@) {
		2852	my ($self, $id, @msg) = @_;
		2853
		2854	if ($self->extcmd == 2) {
		2855	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2856	} elsif ($self->extcmd == 1) {
		2857	#TODO: version 1, remove
		2858	unshift @msg, msgtype => "reply", msgid => $id;
		2859	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2860	}
		2861	}
1930		2862
1931	=item $success = $client->query ($flags, "text", \&cb)	2863	=item $success = $client->query ($flags, "text", \&cb)
1932		2864
1933	Queues a query to the client, calling the given callback with	2865	Queues a query to the client, calling the given callback with
1934	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2866	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1935	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2867	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1936		2868
1937	Queries can fail, so check the return code. Or don't, as queries will become	2869	Queries can fail, so check the return code. Or don't, as queries will
1938	reliable at some point in the future.	2870	become reliable at some point in the future.
1939		2871
1940	=cut	2872	=cut
1941		2873
1942	sub cf::client::query {	2874	sub cf::client::query {
1943	my ($self, $flags, $text, $cb) = @_;	2875	my ($self, $flags, $text, $cb) = @_;
…		…
1951	utf8::encode $text;	2883	utf8::encode $text;
1952	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2884	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1953		2885
1954	$self->send_packet ($self->{query_queue}[0][0])	2886	$self->send_packet ($self->{query_queue}[0][0])
1955	if @{ $self->{query_queue} } == 1;	2887	if @{ $self->{query_queue} } == 1;
		2888
		2889	1
1956	}	2890	}
1957		2891
1958	cf::client->attach (	2892	cf::client->attach (
		2893	on_connect => sub {
		2894	my ($ns) = @_;
		2895
		2896	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2897	},
1959	on_reply => sub {	2898	on_reply => sub {
1960	my ($ns, $msg) = @_;	2899	my ($ns, $msg) = @_;
1961		2900
1962	# this weird shuffling is so that direct followup queries	2901	# this weird shuffling is so that direct followup queries
1963	# get handled first	2902	# get handled first
1964	my $queue = delete $ns->{query_queue}	2903	my $queue = delete $ns->{query_queue}
1965	or return; # be conservative, not sure how that can happen, but we saw a crash here	2904	or return; # be conservative, not sure how that can happen, but we saw a crash here
1966		2905
1967	(shift @$queue)->[1]->($msg);	2906	(shift @$queue)->[1]->($msg);
		2907	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1968		2908
1969	push @{ $ns->{query_queue} }, @$queue;	2909	push @{ $ns->{query_queue} }, @$queue;
1970		2910
1971	if (@{ $ns->{query_queue} } == @$queue) {	2911	if (@{ $ns->{query_queue} } == @$queue) {
1972	if (@$queue) {	2912	if (@$queue) {
…		…
1974	} else {	2914	} else {
1975	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2915	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1976	}	2916	}
1977	}	2917	}
1978	},	2918	},
		2919	on_exticmd => sub {
		2920	my ($ns, $buf) = @_;
		2921
		2922	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2923
		2924	if (ref $msg) {
		2925	my ($type, $reply, @payload) =
		2926	"ARRAY" eq ref $msg
		2927	? @$msg
		2928	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2929
		2930	my @reply;
		2931
		2932	if (my $cb = $EXTICMD{$type}) {
		2933	@reply = $cb->($ns, @payload);
		2934	}
		2935
		2936	$ns->ext_reply ($reply, @reply)
		2937	if $reply;
		2938
		2939	} else {
		2940	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2941	}
		2942
		2943	cf::override;
		2944	},
1979	);	2945	);
1980		2946
1981	=item $client->async (\&cb)	2947	=item $client->async (\&cb)
1982		2948
1983	Create a new coroutine, running the specified callback. The coroutine will	2949	Create a new coroutine, running the specified callback. The coroutine will
…		…
2024	our $safe = new Safe "safe";	2990	our $safe = new Safe "safe";
2025	our $safe_hole = new Safe::Hole;	2991	our $safe_hole = new Safe::Hole;
2026		2992
2027	$SIG{FPE} = 'IGNORE';	2993	$SIG{FPE} = 'IGNORE';
2028		2994
2029	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2995	$safe->permit_only (Opcode::opset qw(
		2996	:base_core :base_mem :base_orig :base_math
		2997	grepstart grepwhile mapstart mapwhile
		2998	sort time
		2999	));
2030		3000
2031	# here we export the classes and methods available to script code	3001	# here we export the classes and methods available to script code
2032		3002
2033	=pod	3003	=pod
2034		3004
2035	The following fucntions and emthods are available within a safe environment:	3005	The following functions and methods are available within a safe environment:
2036		3006
2037	cf::object contr pay_amount pay_player map	3007	cf::object
		3008	contr pay_amount pay_player map x y force_find force_add destroy
		3009	insert remove name archname title slaying race decrease_ob_nr
		3010
2038	cf::object::player player	3011	cf::object::player
2039	cf::player peaceful	3012	player
2040	cf::map trigger	3013
		3014	cf::player
		3015	peaceful
		3016
		3017	cf::map
		3018	trigger
2041		3019
2042	=cut	3020	=cut
2043		3021
2044	for (	3022	for (
2045	["cf::object" => qw(contr pay_amount pay_player map)],	3023	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3024	insert remove inv name archname title slaying race
		3025	decrease_ob_nr destroy)],
2046	["cf::object::player" => qw(player)],	3026	["cf::object::player" => qw(player)],
2047	["cf::player" => qw(peaceful)],	3027	["cf::player" => qw(peaceful)],
2048	["cf::map" => qw(trigger)],	3028	["cf::map" => qw(trigger)],
2049	) {	3029	) {
2050	no strict 'refs';	3030	no strict 'refs';
…		…
2121	=back	3101	=back
2122		3102
2123	=cut	3103	=cut
2124		3104
2125	#############################################################################	3105	#############################################################################
		3106	# the server's init and main functions
2126		3107
2127	=head2 EXTENSION DATABASE SUPPORT	3108	sub load_facedata($) {
		3109	my ($path) = @_;
2128		3110
2129	Crossfire maintains a very simple database for extension use. It can	3111	# HACK to clear player env face cache, we need some signal framework
2130	currently store anything that can be serialised using Storable, which	3112	# for this (global event?)
2131	excludes objects.	3113	%ext::player_env::MUSIC_FACE_CACHE = ();
2132		3114
2133	The parameter C<$family> should best start with the name of the extension	3115	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2134	using it, it should be unique.
2135		3116
2136	=over 4	3117	warn "loading facedata from $path\n";
2137		3118
2138	=item $hashref = cf::db_get $family	3119	my $facedata;
		3120	0 < aio_load $path, $facedata
		3121	or die "$path: $!";
2139		3122
2140	Return a hashref for use by the extension C<$family>, which can be	3123	$facedata = Coro::Storable::thaw $facedata;
2141	modified. After modifications, you have to call C<cf::db_dirty> or
2142	C<cf::db_sync>.
2143		3124
2144	=item $value = cf::db_get $family => $key	3125	$facedata->{version} == 2
		3126	or cf::cleanup "$path: version mismatch, cannot proceed.";
2145		3127
2146	Returns a single value from the database	3128	# patch in the exptable
2147		3129	$facedata->{resource}{"res/exp_table"} = {
2148	=item cf::db_put $family => $hashref	3130	type => FT_RSRC,
2149		3131	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2150	Stores the given family hashref into the database. Updates are delayed, if
2151	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2152
2153	=item cf::db_put $family => $key => $value
2154
2155	Stores the given C<$value> in the family hash. Updates are delayed, if you
2156	want the data to be synced to disk immediately, use C<cf::db_sync>.
2157
2158	=item cf::db_dirty
2159
2160	Marks the database as dirty, to be updated at a later time.
2161
2162	=item cf::db_sync
2163
2164	Immediately write the database to disk I<if it is dirty>.
2165
2166	=cut
2167
2168	our $DB;
2169
2170	{
2171	my $path = cf::localdir . "/database.pst";
2172
2173	sub db_load() {
2174	$DB = stat $path ? Storable::retrieve $path : { };
2175	}
2176
2177	my $pid;
2178
2179	sub db_save() {
2180	waitpid $pid, 0 if $pid;
2181	if (0 == ($pid = fork)) {
2182	$DB->{_meta}{version} = 1;
2183	Storable::nstore $DB, "$path~";
2184	rename "$path~", $path;
2185	cf::_exit 0 if defined $pid;
2186	}
2187	}
2188
2189	my $dirty;
2190
2191	sub db_sync() {
2192	db_save if $dirty;
2193	undef $dirty;
2194	}
2195
2196	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2197	db_sync;
2198	});	3132	};
		3133	cf::cede_to_tick;
2199		3134
2200	sub db_dirty() {
2201	$dirty = 1;
2202	$idle->start;
2203	}	3135	{
		3136	my $faces = $facedata->{faceinfo};
2204		3137
2205	sub db_get($;$) {	3138	while (my ($face, $info) = each %$faces) {
2206	@_ >= 2	3139	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2207	? $DB->{$_[0]}{$_[1]}	3140	cf::face::set_visibility $idx, $info->{visibility};
2208	: ($DB->{$_[0]} ||= { })	3141	cf::face::set_magicmap $idx, $info->{magicmap};
2209	}	3142	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3143	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2210		3144
2211	sub db_put($$;$) {	3145	cf::cede_to_tick;
2212	if (@_ >= 3) {
2213	$DB->{$_[0]}{$_[1]} = $_[2];
2214	} else {
2215	$DB->{$_[0]} = $_[1];
2216	}
2217	db_dirty;
2218	}
2219
2220	cf::global->attach (
2221	prio => 10000,
2222	on_cleanup => sub {
2223	db_sync;
2224	},	3146	}
2225	);
2226	}
2227		3147
2228	#############################################################################	3148	while (my ($face, $info) = each %$faces) {
2229	# the server's main()	3149	next unless $info->{smooth};
		3150	my $idx = cf::face::find $face
		3151	or next;
		3152	if (my $smooth = cf::face::find $info->{smooth}) {
		3153	cf::face::set_smooth $idx, $smooth;
		3154	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3155	} else {
		3156	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3157	}
2230		3158
2231	sub cfg_load {	3159	cf::cede_to_tick;
		3160	}
		3161	}
		3162
		3163	{
		3164	my $anims = $facedata->{animinfo};
		3165
		3166	while (my ($anim, $info) = each %$anims) {
		3167	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3168	cf::cede_to_tick;
		3169	}
		3170
		3171	cf::anim::invalidate_all; # d'oh
		3172	}
		3173
		3174	{
		3175	# TODO: for gcfclient pleasure, we should give resources
		3176	# that gcfclient doesn't grok a >10000 face index.
		3177	my $res = $facedata->{resource};
		3178
		3179	my $soundconf = delete $res->{"res/sound.conf"};
		3180
		3181	while (my ($name, $info) = each %$res) {
		3182	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3183	my $data;
		3184
		3185	if ($info->{type} & 1) {
		3186	# prepend meta info
		3187
		3188	my $meta = $enc->encode ({
		3189	name => $name,
		3190	%{ $info->{meta} || {} },
		3191	});
		3192
		3193	$data = pack "(w/a*)*", $meta, $info->{data};
		3194	} else {
		3195	$data = $info->{data};
		3196	}
		3197
		3198	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3199	cf::face::set_type $idx, $info->{type};
		3200
		3201	cf::cede_to_tick;
		3202	}
		3203
		3204	if ($soundconf) {
		3205	$soundconf = $enc->decode (delete $soundconf->{data});
		3206
		3207	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3208	my $sound = $soundconf->{compat}[$_]
		3209	or next;
		3210
		3211	my $face = cf::face::find "sound/$sound->[1]";
		3212	cf::sound::set $sound->[0] => $face;
		3213	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3214	}
		3215
		3216	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3217	my $face = cf::face::find "sound/$v";
		3218	cf::sound::set $k => $face;
		3219	}
		3220	}
		3221	}
		3222
		3223	1
		3224	}
		3225
		3226	register_exticmd fx_want => sub {
		3227	my ($ns, $want) = @_;
		3228
		3229	while (my ($k, $v) = each %$want) {
		3230	$ns->fx_want ($k, $v);
		3231	}
		3232	};
		3233
		3234	sub reload_regions {
		3235	# HACK to clear player env face cache, we need some signal framework
		3236	# for this (global event?)
		3237	%ext::player_env::MUSIC_FACE_CACHE = ();
		3238
		3239	load_resource_file "$MAPDIR/regions"
		3240	or die "unable to load regions file\n";
		3241
		3242	for (cf::region::list) {
		3243	$_->{match} = qr/$_->{match}/
		3244	if exists $_->{match};
		3245	}
		3246	}
		3247
		3248	sub reload_facedata {
		3249	load_facedata "$DATADIR/facedata"
		3250	or die "unable to load facedata\n";
		3251	}
		3252
		3253	sub reload_archetypes {
		3254	load_resource_file "$DATADIR/archetypes"
		3255	or die "unable to load archetypes\n";
		3256	#d# NEED to laod twice to resolve forward references
		3257	# this really needs to be done in an extra post-pass
		3258	# (which needs to be synchronous, so solve it differently)
		3259	load_resource_file "$DATADIR/archetypes"
		3260	or die "unable to load archetypes\n";
		3261	}
		3262
		3263	sub reload_treasures {
		3264	load_resource_file "$DATADIR/treasures"
		3265	or die "unable to load treasurelists\n";
		3266	}
		3267
		3268	sub reload_resources {
		3269	warn "reloading resource files...\n";
		3270
		3271	reload_regions;
		3272	reload_facedata;
		3273	#reload_archetypes;#d#
		3274	reload_archetypes;
		3275	reload_treasures;
		3276
		3277	warn "finished reloading resource files\n";
		3278	}
		3279
		3280	sub init {
		3281	reload_resources;
		3282	}
		3283
		3284	sub reload_config {
2232	open my $fh, "<:utf8", cf::confdir . "/config"	3285	open my $fh, "<:utf8", "$CONFDIR/config"
2233	or return;	3286	or return;
2234		3287
2235	local $/;	3288	local $/;
2236	*CFG = YAML::Syck::Load <$fh>;	3289	*CFG = YAML::Syck::Load <$fh>;
2237		3290
…		…
2251		3304
2252	sub main {	3305	sub main {
2253	# we must not ever block the main coroutine	3306	# we must not ever block the main coroutine
2254	local $Coro::idle = sub {	3307	local $Coro::idle = sub {
2255	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3308	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3309	(async {
		3310	$Coro::current->{desc} = "IDLE BUG HANDLER";
2256	async { Event::one_event };	3311	Event::one_event;
		3312	})->prio (Coro::PRIO_MAX);
2257	};	3313	};
2258		3314
2259	cfg_load;	3315	reload_config;
2260	db_load;	3316	db_init;
2261	load_extensions;	3317	load_extensions;
		3318
		3319	$TICK_WATCHER->start;
2262	Event::loop;	3320	Event::loop;
2263	}	3321	}
2264		3322
2265	#############################################################################	3323	#############################################################################
2266	# initialisation and cleanup	3324	# initialisation and cleanup
2267		3325
2268	# install some emergency cleanup handlers	3326	# install some emergency cleanup handlers
2269	BEGIN {	3327	BEGIN {
2270	for my $signal (qw(INT HUP TERM)) {	3328	for my $signal (qw(INT HUP TERM)) {
2271	Event->signal (	3329	Event->signal (
		3330	reentrant => 0,
2272	data => WF_AUTOCANCEL,	3331	data => WF_AUTOCANCEL,
2273	signal => $signal,	3332	signal => $signal,
		3333	prio => 0,
2274	cb => sub {	3334	cb => sub {
2275	cf::cleanup "SIG$signal";	3335	cf::cleanup "SIG$signal";
2276	},	3336	},
2277	);	3337	);
2278	}	3338	}
2279	}	3339	}
2280		3340
		3341	sub write_runtime {
		3342	my $runtime = "$LOCALDIR/runtime";
		3343
		3344	# first touch the runtime file to show we are still running:
		3345	# the fsync below can take a very very long time.
		3346
		3347	IO::AIO::aio_utime $runtime, undef, undef;
		3348
		3349	my $guard = cf::lock_acquire "write_runtime";
		3350
		3351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3352	or return;
		3353
		3354	my $value = $cf::RUNTIME + 90 + 10;
		3355	# 10 is the runtime save interval, for a monotonic clock
		3356	# 60 allows for the watchdog to kill the server.
		3357
		3358	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3359	and return;
		3360
		3361	# always fsync - this file is important
		3362	aio_fsync $fh
		3363	and return;
		3364
		3365	# touch it again to show we are up-to-date
		3366	aio_utime $fh, undef, undef;
		3367
		3368	close $fh
		3369	or return;
		3370
		3371	aio_rename "$runtime~", $runtime
		3372	and return;
		3373
		3374	warn "runtime file written.\n";
		3375
		3376	1
		3377	}
		3378
2281	sub emergency_save() {	3379	sub emergency_save() {
2282	my $freeze_guard = cf::freeze_mainloop;	3380	my $freeze_guard = cf::freeze_mainloop;
2283		3381
2284	warn "enter emergency perl save\n";	3382	warn "enter emergency perl save\n";
2285		3383
2286	cf::sync_job {	3384	cf::sync_job {
2287	# use a peculiar iteration method to avoid tripping on perl	3385	# use a peculiar iteration method to avoid tripping on perl
2288	# refcount bugs in for. also avoids problems with players	3386	# refcount bugs in for. also avoids problems with players
2289	# and maps saved/Destroyed asynchronously.	3387	# and maps saved/destroyed asynchronously.
2290	warn "begin emergency player save\n";	3388	warn "begin emergency player save\n";
2291	for my $login (keys %cf::PLAYER) {	3389	for my $login (keys %cf::PLAYER) {
2292	my $pl = $cf::PLAYER{$login} or next;	3390	my $pl = $cf::PLAYER{$login} or next;
2293	$pl->valid or next;	3391	$pl->valid or next;
		3392	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2294	$pl->save;	3393	$pl->save;
2295	}	3394	}
2296	warn "end emergency player save\n";	3395	warn "end emergency player save\n";
2297		3396
2298	warn "begin emergency map save\n";	3397	warn "begin emergency map save\n";
…		…
2300	my $map = $cf::MAP{$path} or next;	3399	my $map = $cf::MAP{$path} or next;
2301	$map->valid or next;	3400	$map->valid or next;
2302	$map->save;	3401	$map->save;
2303	}	3402	}
2304	warn "end emergency map save\n";	3403	warn "end emergency map save\n";
		3404
		3405	warn "begin emergency database checkpoint\n";
		3406	BDB::db_env_txn_checkpoint $DB_ENV;
		3407	warn "end emergency database checkpoint\n";
2305	};	3408	};
2306		3409
2307	warn "leave emergency perl save\n";	3410	warn "leave emergency perl save\n";
2308	}	3411	}
2309		3412
		3413	sub post_cleanup {
		3414	my ($make_core) = @_;
		3415
		3416	warn Carp::longmess "post_cleanup backtrace"
		3417	if $make_core;
		3418	}
		3419
2310	sub reload() {	3420	sub do_reload_perl() {
2311	# can/must only be called in main	3421	# can/must only be called in main
2312	if ($Coro::current != $Coro::main) {	3422	if ($Coro::current != $Coro::main) {
2313	warn "can only reload from main coroutine\n";	3423	warn "can only reload from main coroutine";
2314	return;	3424	return;
2315	}	3425	}
2316		3426
2317	warn "reloading...";	3427	warn "reloading...";
2318		3428
2319	warn "freezing server";	3429	warn "entering sync_job";
2320	my $guard = freeze_mainloop;	3430
		3431	cf::sync_job {
		3432	cf::write_runtime; # external watchdog should not bark
2321	cf::emergency_save;	3433	cf::emergency_save;
		3434	cf::write_runtime; # external watchdog should not bark
2322		3435
2323	warn "sync database to disk";	3436	warn "syncing database to disk";
2324	cf::db_sync;	3437	BDB::db_env_txn_checkpoint $DB_ENV;
2325	IO::AIO::flush;
2326		3438
2327	eval {
2328	# if anything goes wrong in here, we should simply crash as we already saved	3439	# if anything goes wrong in here, we should simply crash as we already saved
2329		3440
2330	warn "cancel all watchers";	3441	warn "cancelling all WF_AUTOCANCEL watchers";
2331	for (Event::all_watchers) {	3442	for (Event::all_watchers) {
2332	$_->cancel if $_->data & WF_AUTOCANCEL;	3443	$_->cancel if $_->data & WF_AUTOCANCEL;
2333	}	3444	}
2334		3445
		3446	warn "flushing outstanding aio requests";
		3447	for (;;) {
		3448	BDB::flush;
		3449	IO::AIO::flush;
		3450	Coro::cede_notself;
		3451	last unless IO::AIO::nreqs || BDB::nreqs;
		3452	warn "iterate...";
		3453	}
		3454
		3455	++$RELOAD;
		3456
2335	warn "cancel all extension coros";	3457	warn "cancelling all extension coros";
2336	$_->cancel for values %EXT_CORO;	3458	$_->cancel for values %EXT_CORO;
2337	%EXT_CORO = ();	3459	%EXT_CORO = ();
2338		3460
2339	warn "remove commands";	3461	warn "removing commands";
2340	%COMMAND = ();	3462	%COMMAND = ();
2341		3463
2342	warn "remove ext commands";	3464	warn "removing ext/exti commands";
2343	%EXTCMD = ();	3465	%EXTCMD = ();
		3466	%EXTICMD = ();
2344		3467
2345	warn "unload/nuke all extensions";	3468	warn "unloading/nuking all extensions";
2346	for my $pkg (@EXTS) {	3469	for my $pkg (@EXTS) {
2347	warn "... unloading $pkg";	3470	warn "... unloading $pkg";
2348		3471
2349	if (my $cb = $pkg->can ("unload")) {	3472	if (my $cb = $pkg->can ("unload")) {
2350	eval {	3473	eval {
…		…
2355		3478
2356	warn "... nuking $pkg";	3479	warn "... nuking $pkg";
2357	Symbol::delete_package $pkg;	3480	Symbol::delete_package $pkg;
2358	}	3481	}
2359		3482
2360	warn "unload all perl modules loaded from $LIBDIR";	3483	warn "unloading all perl modules loaded from $LIBDIR";
2361	while (my ($k, $v) = each %INC) {	3484	while (my ($k, $v) = each %INC) {
2362	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3485	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2363		3486
2364	warn "removing <$k>";	3487	warn "... unloading $k";
2365	delete $INC{$k};	3488	delete $INC{$k};
2366		3489
2367	$k =~ s/\.pm$//;	3490	$k =~ s/\.pm$//;
2368	$k =~ s/\//::/g;	3491	$k =~ s/\//::/g;
2369		3492
…		…
2372	}	3495	}
2373		3496
2374	Symbol::delete_package $k;	3497	Symbol::delete_package $k;
2375	}	3498	}
2376		3499
2377	warn "get rid of safe::, as good as possible";	3500	warn "getting rid of safe::, as good as possible";
2378	Symbol::delete_package "safe::$_"	3501	Symbol::delete_package "safe::$_"
2379	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3502	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2380		3503
2381	warn "unload cf.pm \"a bit\"";	3504	warn "unloading cf.pm \"a bit\"";
2382	delete $INC{"cf.pm"};	3505	delete $INC{"cf.pm"};
		3506	delete $INC{"cf/pod.pm"};
2383		3507
2384	# don't, removes xs symbols, too,	3508	# don't, removes xs symbols, too,
2385	# and global variables created in xs	3509	# and global variables created in xs
2386	#Symbol::delete_package __PACKAGE__;	3510	#Symbol::delete_package __PACKAGE__;
2387		3511
		3512	warn "unload completed, starting to reload now";
		3513
2388	warn "reloading cf.pm";	3514	warn "reloading cf.pm";
2389	require cf;	3515	require cf;
2390	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3516	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2391		3517
2392	warn "load config and database again";	3518	warn "loading config and database again";
2393	cf::cfg_load;	3519	cf::reload_config;
2394	cf::db_load;
2395		3520
2396	warn "load extensions";	3521	warn "loading extensions";
2397	cf::load_extensions;	3522	cf::load_extensions;
2398		3523
2399	warn "reattach attachments to objects/players";	3524	warn "reattaching attachments to objects/players";
2400	_global_reattach;	3525	_global_reattach; # objects, sockets
2401	warn "reattach attachments to maps";	3526	warn "reattaching attachments to maps";
2402	reattach $_ for values %MAP;	3527	reattach $_ for values %MAP;
2403	};	3528	warn "reattaching attachments to players";
		3529	reattach $_ for values %PLAYER;
2404		3530
2405	if ($@) {	3531	warn "leaving sync_job";
		3532
		3533	1
		3534	} or do {
2406	warn $@;	3535	warn $@;
2407	warn "error while reloading, exiting.";	3536	warn "error while reloading, exiting.";
2408	exit 1;	3537	exit 1;
2409	}	3538	};
2410		3539
2411	warn "reloaded";	3540	warn "reloaded";
2412	};	3541	};
2413		3542
2414	#############################################################################	3543	our $RELOAD_WATCHER; # used only during reload
2415		3544
2416	unless ($LINK_MAP) {	3545	sub reload_perl() {
2417	$LINK_MAP = cf::map::new;	3546	# doing reload synchronously and two reloads happen back-to-back,
		3547	# coro crashes during coro_state_free->destroy here.
2418		3548
2419	$LINK_MAP->width (41);	3549	$RELOAD_WATCHER ||= Event->timer (
2420	$LINK_MAP->height (41);	3550	reentrant => 0,
2421	$LINK_MAP->alloc;
2422	$LINK_MAP->path ("{link}");
2423	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2424	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2425
2426	# dirty hack because... archetypes are not yet loaded
2427	Event->timer (
2428	after => 10,	3551	after => 0,
		3552	data => WF_AUTOCANCEL,
2429	cb => sub {	3553	cb => sub {
2430	$_[0]->w->cancel;	3554	do_reload_perl;
2431		3555	undef $RELOAD_WATCHER;
2432	# provide some exits "home"
2433	my $exit = cf::object::new "exit";
2434
2435	$exit->slaying ($EMERGENCY_POSITION->[0]);
2436	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2437	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2438
2439	$LINK_MAP->insert ($exit->clone, 19, 19);
2440	$LINK_MAP->insert ($exit->clone, 19, 20);
2441	$LINK_MAP->insert ($exit->clone, 19, 21);
2442	$LINK_MAP->insert ($exit->clone, 20, 19);
2443	$LINK_MAP->insert ($exit->clone, 20, 21);
2444	$LINK_MAP->insert ($exit->clone, 21, 19);
2445	$LINK_MAP->insert ($exit->clone, 21, 20);
2446	$LINK_MAP->insert ($exit->clone, 21, 21);
2447
2448	$exit->destroy;
2449	});	3556	},
2450		3557	);
2451	$LINK_MAP->{deny_save} = 1;
2452	$LINK_MAP->{deny_reset} = 1;
2453
2454	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2455	}	3558	}
2456		3559
2457	register_command "reload" => sub {	3560	register_command "reload" => sub {
2458	my ($who, $arg) = @_;	3561	my ($who, $arg) = @_;
2459		3562
2460	if ($who->flag (FLAG_WIZ)) {	3563	if ($who->flag (FLAG_WIZ)) {
2461	$who->message ("start of reload.");
2462	reload;
2463	$who->message ("end of reload.");	3564	$who->message ("reloading server.");
		3565	async {
		3566	$Coro::current->{desc} = "perl_reload";
		3567	reload_perl;
		3568	};
2464	}	3569	}
2465	};	3570	};
2466		3571
2467	unshift @INC, $LIBDIR;	3572	unshift @INC, $LIBDIR;
		3573
		3574	my $bug_warning = 0;
		3575
		3576	our @WAIT_FOR_TICK;
		3577	our @WAIT_FOR_TICK_BEGIN;
		3578
		3579	sub wait_for_tick {
		3580	return unless $TICK_WATCHER->is_active;
		3581	return if $Coro::current == $Coro::main;
		3582
		3583	my $signal = new Coro::Signal;
		3584	push @WAIT_FOR_TICK, $signal;
		3585	$signal->wait;
		3586	}
		3587
		3588	sub wait_for_tick_begin {
		3589	return unless $TICK_WATCHER->is_active;
		3590	return if $Coro::current == $Coro::main;
		3591
		3592	my $signal = new Coro::Signal;
		3593	push @WAIT_FOR_TICK_BEGIN, $signal;
		3594	$signal->wait;
		3595	}
2468		3596
2469	$TICK_WATCHER = Event->timer (	3597	$TICK_WATCHER = Event->timer (
2470	reentrant => 0,	3598	reentrant => 0,
		3599	parked => 1,
2471	prio => 0,	3600	prio => 0,
2472	at => $NEXT_TICK || $TICK,	3601	at => $NEXT_TICK || $TICK,
2473	data => WF_AUTOCANCEL,	3602	data => WF_AUTOCANCEL,
2474	cb => sub {	3603	cb => sub {
		3604	if ($Coro::current != $Coro::main) {
		3605	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3606	unless ++$bug_warning > 10;
		3607	return;
		3608	}
		3609
2475	$NOW = Event::time;	3610	$NOW = $tick_start = Event::time;
2476		3611
2477	cf::server_tick; # one server iteration	3612	cf::server_tick; # one server iteration
		3613
2478	$RUNTIME += $TICK;	3614	$RUNTIME += $TICK;
2479	$NEXT_TICK += $TICK;	3615	$NEXT_TICK += $TICK;
2480		3616
2481	$WAIT_FOR_TICK->broadcast;	3617	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2482	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3618	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3619	Coro::async_pool {
		3620	$Coro::current->{desc} = "runtime saver";
		3621	write_runtime
		3622	or warn "ERROR: unable to write runtime file: $!";
		3623	};
		3624	}
		3625
		3626	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3627	$sig->send;
		3628	}
		3629	while (my $sig = shift @WAIT_FOR_TICK) {
		3630	$sig->send;
		3631	}
		3632
		3633	$NOW = Event::time;
2483		3634
2484	# if we are delayed by four ticks or more, skip them all	3635	# if we are delayed by four ticks or more, skip them all
2485	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3636	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2486		3637
2487	$TICK_WATCHER->at ($NEXT_TICK);	3638	$TICK_WATCHER->at ($NEXT_TICK);
2488	$TICK_WATCHER->start;	3639	$TICK_WATCHER->start;
		3640
		3641	$LOAD = ($NOW - $tick_start) / $TICK;
		3642	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3643
		3644	_post_tick;
2489	},	3645	},
2490	);	3646	);
2491		3647
		3648	{
		3649	BDB::min_parallel 8;
2492	IO::AIO::max_poll_time $TICK * 0.2;	3650	BDB::max_poll_time $TICK * 0.1;
2493		3651	$BDB_POLL_WATCHER = Event->io (
2494	Event->io (	3652	reentrant => 0,
2495	fd => IO::AIO::poll_fileno,	3653	fd => BDB::poll_fileno,
2496	poll => 'r',	3654	poll => 'r',
2497	prio => 5,	3655	prio => 0,
2498	data => WF_AUTOCANCEL,
2499	cb => \&IO::AIO::poll_cb,
2500	);
2501
2502	Event->timer (
2503	data => WF_AUTOCANCEL,	3656	data => WF_AUTOCANCEL,
		3657	cb => \&BDB::poll_cb,
		3658	);
		3659
		3660	BDB::set_sync_prepare {
		3661	my $status;
		3662	my $current = $Coro::current;
		3663	(
		3664	sub {
		3665	$status = $!;
		3666	$current->ready; undef $current;
		3667	},
		3668	sub {
		3669	Coro::schedule while defined $current;
		3670	$! = $status;
		3671	},
		3672	)
		3673	};
		3674
		3675	unless ($DB_ENV) {
		3676	$DB_ENV = BDB::db_env_create;
		3677	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3678	| BDB::LOG_AUTOREMOVE, 1);
		3679	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3680	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3681
		3682	cf::sync_job {
		3683	eval {
		3684	BDB::db_env_open
		3685	$DB_ENV,
		3686	$BDBDIR,
		3687	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3688	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3689	0666;
		3690
		3691	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3692	};
		3693
		3694	cf::cleanup "db_env_open(db): $@" if $@;
		3695	};
		3696	}
		3697
		3698	$BDB_DEADLOCK_WATCHER = Event->timer (
2504	after => 0,	3699	after => 3,
2505	interval => 10,	3700	interval => 1,
		3701	hard => 1,
		3702	prio => 0,
		3703	data => WF_AUTOCANCEL,
2506	cb => sub {	3704	cb => sub {
2507	(Coro::unblock_sub {	3705	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2508	write_runtime	3706	},
2509	or warn "ERROR: unable to write runtime file: $!";	3707	);
		3708	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3709	after => 11,
		3710	interval => 60,
		3711	hard => 1,
		3712	prio => 0,
		3713	data => WF_AUTOCANCEL,
		3714	cb => sub {
		3715	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3716	},
		3717	);
		3718	$BDB_TRICKLE_WATCHER = Event->timer (
		3719	after => 5,
		3720	interval => 10,
		3721	hard => 1,
		3722	prio => 0,
		3723	data => WF_AUTOCANCEL,
		3724	cb => sub {
		3725	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3726	},
		3727	);
		3728	}
		3729
		3730	{
		3731	IO::AIO::min_parallel 8;
		3732
		3733	undef $Coro::AIO::WATCHER;
		3734	IO::AIO::max_poll_time $TICK * 0.1;
		3735	$AIO_POLL_WATCHER = Event->io (
		3736	reentrant => 0,
		3737	data => WF_AUTOCANCEL,
		3738	fd => IO::AIO::poll_fileno,
		3739	poll => 'r',
		3740	prio => 0,
		3741	cb => \&IO::AIO::poll_cb,
		3742	);
		3743	}
		3744
		3745	my $_log_backtrace;
		3746
		3747	sub _log_backtrace {
		3748	my ($msg, @addr) = @_;
		3749
		3750	$msg =~ s/\n//;
		3751
		3752	# limit the # of concurrent backtraces
		3753	if ($_log_backtrace < 2) {
		3754	++$_log_backtrace;
		3755	async {
		3756	$Coro::current->{desc} = "abt $msg";
		3757
		3758	my @bt = fork_call {
		3759	@addr = map { sprintf "%x", $_ } @addr;
		3760	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3761	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3762	or die "addr2line: $!";
		3763
		3764	my @funcs;
		3765	my @res = <$fh>;
		3766	chomp for @res;
		3767	while (@res) {
		3768	my ($func, $line) = splice @res, 0, 2, ();
		3769	push @funcs, "[$func] $line";
		3770	}
		3771
		3772	@funcs
		3773	};
		3774
		3775	LOG llevInfo, "[ABT] $msg\n";
		3776	LOG llevInfo, "[ABT] $_\n" for @bt;
		3777	--$_log_backtrace;
2510	})->();	3778	};
		3779	} else {
		3780	LOG llevInfo, "[ABT] $msg\n";
		3781	LOG llevInfo, "[ABT] [suppressed]\n";
2511	},	3782	}
2512	);	3783	}
		3784
		3785	# load additional modules
		3786	use cf::pod;
2513		3787
2514	END { cf::emergency_save }	3788	END { cf::emergency_save }
2515		3789
2516	1	3790	1
2517		3791

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