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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.162 by root, Thu Jan 11 00:41:08 2007 UTC vs.
Revision 1.376 by root, Mon Oct 1 00:44:44 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 Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.64 ();
		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;
		31	use YAML::Syck ();
23	use IO::AIO 2.32 ();	32	use IO::AIO 2.32 ();
24	use YAML::Syck ();
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
296	# TODO: use suspend/resume instead	432	# TODO: use suspend/resume instead
297	# (but this is cancel-safe)	433	# (but this is cancel-safe)
…		…
299		435
300	my $busy = 1;	436	my $busy = 1;
301	my @res;	437	my @res;
302		438
303	(async {	439	(async {
		440	$Coro::current->desc ("sync job coro");
304	@res = eval { $job->() };	441	@res = eval { $job->() };
305	warn $@ if $@;	442	warn $@ if $@;
306	undef $busy;	443	undef $busy;
307	})->prio (Coro::PRIO_MAX);	444	})->prio (Coro::PRIO_MAX);
308		445
309	while ($busy) {	446	while ($busy) {
310	Coro::cede or Event::one_event;	447	Coro::cede or Event::one_event;
311	}	448	}
		449
		450	$time = Event::time - $time;
		451
		452	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		453	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		454
		455	$tick_start += $time; # do not account sync jobs to server load
312		456
313	wantarray ? @res : $res[0]	457	wantarray ? @res : $res[0]
314	} else {	458	} else {
315	# we are in another coroutine, how wonderful, everything just works	459	# we are in another coroutine, how wonderful, everything just works
316		460
…		…
336	$EXT_CORO{$coro+0} = $coro;	480	$EXT_CORO{$coro+0} = $coro;
337		481
338	$coro	482	$coro
339	}	483	}
340		484
341	sub write_runtime {	485	=item fork_call { }, $args
342	my $runtime = cf::localdir . "/runtime";
343		486
344	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	487	Executes the given code block with the given arguments in a seperate
345	or return;	488	process, returning the results. Everything must be serialisable with
		489	Coro::Storable. May, of course, block. Note that the executed sub may
		490	never block itself or use any form of Event handling.
346		491
347	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	492	=cut
348	(aio_write $fh, 0, (length $value), $value, 0) <= 0
349	and return;
350		493
351	aio_fsync $fh	494	sub fork_call(&@) {
352	and return;	495	my ($cb, @args) = @_;
353		496
354	close $fh	497	# we seemingly have to make a local copy of the whole thing,
355	or return;	498	# otherwise perl prematurely frees the stuff :/
		499	# TODO: investigate and fix (likely this will be rather laborious)
356		500
357	aio_rename "$runtime~", $runtime	501	my @res = Coro::Util::fork_eval {
358	and return;	502	reset_signals;
		503	&$cb
		504	}, @args;
359		505
		506	wantarray ? @res : $res[-1]
		507	}
		508
		509	=item $value = cf::db_get $family => $key
		510
		511	Returns a single value from the environment database.
		512
		513	=item cf::db_put $family => $key => $value
		514
		515	Stores the given C<$value> in the family. It can currently store binary
		516	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		517
		518	=item $db = cf::db_table "name"
		519
		520	Create and/or open a new database table. The string must not be "db" and must be unique
		521	within each server.
		522
		523	=cut
		524
		525	sub db_table($) {
		526	my ($name) = @_;
		527	my $db = BDB::db_create $DB_ENV;
		528
		529	eval {
		530	$db->set_flags (BDB::CHKSUM);
		531
		532	utf8::encode $name;
		533	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		534	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		535	cf::cleanup "db_open(db): $!" if $!;
		536	};
		537	cf::cleanup "db_open(db): $@" if $@;
		538
		539	$db
		540	}
		541
		542	our $DB;
		543
		544	sub db_init {
		545	cf::sync_job {
		546	$DB ||= db_table "db";
		547	};
		548	}
		549
		550	sub db_get($$) {
		551	my $key = "$_[0]/$_[1]";
		552
		553	cf::sync_job {
		554	BDB::db_get $DB, undef, $key, my $data;
		555
		556	$! ? ()
		557	: $data
360	1	558	}
		559	}
		560
		561	sub db_put($$$) {
		562	BDB::dbreq_pri 4;
		563	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		564	}
		565
		566	=item cf::cache $id => [$paths...], $processversion => $process
		567
		568	Generic caching function that returns the value of the resource $id,
		569	caching and regenerating as required.
		570
		571	This function can block.
		572
		573	=cut
		574
		575	sub cache {
		576	my ($id, $src, $processversion, $process) = @_;
		577
		578	my $meta =
		579	join "\x00",
		580	$processversion,
		581	map {
		582	aio_stat $_
		583	and Carp::croak "$_: $!";
		584
		585	($_, (stat _)[7,9])
		586	} @$src;
		587
		588	my $dbmeta = db_get cache => "$id/meta";
		589	if ($dbmeta ne $meta) {
		590	# changed, we may need to process
		591
		592	my @data;
		593	my $md5;
		594
		595	for (0 .. $#$src) {
		596	0 <= aio_load $src->[$_], $data[$_]
		597	or Carp::croak "$src->[$_]: $!";
		598	}
		599
		600	# if processing is expensive, check
		601	# checksum first
		602	if (1) {
		603	$md5 =
		604	join "\x00",
		605	$processversion,
		606	map {
		607	cf::cede_to_tick;
		608	($src->[$_], Digest::MD5::md5_hex $data[$_])
		609	} 0.. $#$src;
		610
		611
		612	my $dbmd5 = db_get cache => "$id/md5";
		613	if ($dbmd5 eq $md5) {
		614	db_put cache => "$id/meta", $meta;
		615
		616	return db_get cache => "$id/data";
		617	}
		618	}
		619
		620	my $t1 = Time::HiRes::time;
		621	my $data = $process->(\@data);
		622	my $t2 = Time::HiRes::time;
		623
		624	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		625
		626	db_put cache => "$id/data", $data;
		627	db_put cache => "$id/md5" , $md5;
		628	db_put cache => "$id/meta", $meta;
		629
		630	return $data;
		631	}
		632
		633	db_get cache => "$id/data"
		634	}
		635
		636	=item cf::datalog type => key => value, ...
		637
		638	Log a datalog packet of the given type with the given key-value pairs.
		639
		640	=cut
		641
		642	sub datalog($@) {
		643	my ($type, %kv) = @_;
		644	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
361	}	645	}
362		646
363	=back	647	=back
364		648
365	=cut	649	=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	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
502	}
503
504	# this is somewhat ugly, but style maps do need special treatment
505	sub is_style_map {
506	$_[0]{path} =~ m{^/styles/}
507	}
508
509	sub load_orig {
510	my ($self) = @_;
511
512	&cf::map::load_map_header ($self->load_path)
513	}
514
515	sub load_temp {
516	my ($self) = @_;
517
518	&cf::map::load_map_header ($self->save_path)
519	}
520
521	package cf;
522		650
523	#############################################################################	651	#############################################################################
524		652
525	=head2 ATTACHABLE OBJECTS	653	=head2 ATTACHABLE OBJECTS
526		654
…		…
528	attach callbacks/event handlers (a collection of which is called an "attachment")	656	attach callbacks/event handlers (a collection of which is called an "attachment")
529	to it. All such attachable objects support the following methods.	657	to it. All such attachable objects support the following methods.
530		658
531	In the following description, CLASS can be any of C<global>, C<object>	659	In the following description, CLASS can be any of C<global>, C<object>
532	C<player>, C<client> or C<map> (i.e. the attachable objects in	660	C<player>, C<client> or C<map> (i.e. the attachable objects in
533	crossfire+).	661	Crossfire TRT).
534		662
535	=over 4	663	=over 4
536		664
537	=item $attachable->attach ($attachment, key => $value...)	665	=item $attachable->attach ($attachment, key => $value...)
538		666
…		…
652	our @CB_TYPE = (); # registry for type (cf-object class) based events	780	our @CB_TYPE = (); # registry for type (cf-object class) based events
653	our @CB_MAP = ();	781	our @CB_MAP = ();
654		782
655	my %attachment;	783	my %attachment;
656		784
		785	sub cf::attachable::thawer_merge {
		786	# simply override everything except _meta
		787	local $_[0]{_meta};
		788	%{$_[0]} = %{$_[1]};
		789	}
		790
657	sub _attach_cb($$$$) {	791	sub _attach_cb($$$$) {
658	my ($registry, $event, $prio, $cb) = @_;	792	my ($registry, $event, $prio, $cb) = @_;
659		793
660	use sort 'stable';	794	use sort 'stable';
661		795
…		…
695	$registry = $CB_TYPE[$object_type] ||= [];	829	$registry = $CB_TYPE[$object_type] ||= [];
696		830
697	} elsif ($type eq "subtype") {	831	} elsif ($type eq "subtype") {
698	defined $object_type or Carp::croak "subtype specified without type";	832	defined $object_type or Carp::croak "subtype specified without type";
699	my $object_subtype = shift @arg;	833	my $object_subtype = shift @arg;
700	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	834	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
701		835
702	} elsif ($type eq "package") {	836	} elsif ($type eq "package") {
703	my $pkg = shift @arg;	837	my $pkg = shift @arg;
704		838
705	while (my ($name, $id) = each %cb_id) {	839	while (my ($name, $id) = each %cb_id) {
…		…
734	_attach $registry, $klass, @attach;	868	_attach $registry, $klass, @attach;
735	}	869	}
736		870
737	$obj->{$name} = \%arg;	871	$obj->{$name} = \%arg;
738	} else {	872	} else {
739	warn "object uses attachment '$name' that is not available, postponing.\n";	873	warn "object uses attachment '$name' which is not available, postponing.\n";
740	}	874	}
741		875
742	$obj->{_attachment}{$name} = undef;	876	$obj->{_attachment}{$name} = undef;
743	}	877	}
744		878
…		…
746	if (ref $_[0]) {	880	if (ref $_[0]) {
747	_object_attach @_;	881	_object_attach @_;
748	} else {	882	} else {
749	_attach shift->_attach_registry, @_;	883	_attach shift->_attach_registry, @_;
750	}	884	}
		885	_recalc_want;
751	};	886	};
752		887
753	# all those should be optimised	888	# all those should be optimised
754	sub cf::attachable::detach {	889	sub cf::attachable::detach {
755	my ($obj, $name) = @_;	890	my ($obj, $name) = @_;
…		…
758	delete $obj->{_attachment}{$name};	893	delete $obj->{_attachment}{$name};
759	reattach ($obj);	894	reattach ($obj);
760	} else {	895	} else {
761	Carp::croak "cannot, currently, detach class attachments";	896	Carp::croak "cannot, currently, detach class attachments";
762	}	897	}
		898	_recalc_want;
763	};	899	};
764		900
765	sub cf::attachable::attached {	901	sub cf::attachable::attached {
766	my ($obj, $name) = @_;	902	my ($obj, $name) = @_;
767		903
…		…
782	";	918	";
783	die if $@;	919	die if $@;
784	}	920	}
785		921
786	our $override;	922	our $override;
787	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	923	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
788		924
789	sub override {	925	sub override {
790	$override = 1;	926	$override = 1;
791	@invoke_results = ();	927	@INVOKE_RESULTS = (@_);
792	}	928	}
793		929
794	sub do_invoke {	930	sub do_invoke {
795	my $event = shift;	931	my $event = shift;
796	my $callbacks = shift;	932	my $callbacks = shift;
797		933
798	@invoke_results = ();	934	@INVOKE_RESULTS = ();
799		935
800	local $override;	936	local $override;
801		937
802	for (@$callbacks) {	938	for (@$callbacks) {
803	eval { &{$_->[1]} };	939	eval { &{$_->[1]} };
…		…
820		956
821	Generate an object-specific event with the given arguments.	957	Generate an object-specific event with the given arguments.
822		958
823	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	959	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
824	removed in future versions), and there is no public API to access override	960	removed in future versions), and there is no public API to access override
825	results (if you must, access C<@cf::invoke_results> directly).	961	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
826		962
827	=back	963	=back
828		964
829	=cut	965	=cut
830		966
831	#############################################################################	967	#############################################################################
832	# object support	968	# object support
		969	#
		970
		971	sub _can_merge {
		972	my ($ob1, $ob2) = @_;
		973
		974	local $Storable::canonical = 1;
		975	my $fob1 = Storable::freeze $ob1;
		976	my $fob2 = Storable::freeze $ob2;
		977
		978	$fob1 eq $fob2
		979	}
833		980
834	sub reattach {	981	sub reattach {
835	# basically do the same as instantiate, without calling instantiate	982	# basically do the same as instantiate, without calling instantiate
836	my ($obj) = @_;	983	my ($obj) = @_;
		984
		985	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
837		986
838	my $registry = $obj->registry;	987	my $registry = $obj->registry;
839		988
840	@$registry = ();	989	@$registry = ();
841		990
…		…
882	sub object_freezer_save {	1031	sub object_freezer_save {
883	my ($filename, $rdata, $objs) = @_;	1032	my ($filename, $rdata, $objs) = @_;
884		1033
885	sync_job {	1034	sync_job {
886	if (length $$rdata) {	1035	if (length $$rdata) {
		1036	utf8::decode (my $decname = $filename);
887	warn sprintf "saving %s (%d,%d)\n",	1037	warn sprintf "saving %s (%d,%d)\n",
888	$filename, length $$rdata, scalar @$objs;	1038	$decname, length $$rdata, scalar @$objs;
889		1039
890	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1040	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
891	chmod SAVE_MODE, $fh;	1041	chmod SAVE_MODE, $fh;
892	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1042	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
893	aio_fsync $fh;	1043	aio_fsync $fh if $cf::USE_FSYNC;
894	close $fh;	1044	close $fh;
895		1045
896	if (@$objs) {	1046	if (@$objs) {
897	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1047	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
898	chmod SAVE_MODE, $fh;	1048	chmod SAVE_MODE, $fh;
899	my $data = Storable::nfreeze { version => 1, objs => $objs };	1049	my $data = Storable::nfreeze { version => 1, objs => $objs };
900	aio_write $fh, 0, (length $data), $data, 0;	1050	aio_write $fh, 0, (length $data), $data, 0;
901	aio_fsync $fh;	1051	aio_fsync $fh if $cf::USE_FSYNC;
902	close $fh;	1052	close $fh;
903	aio_rename "$filename.pst~", "$filename.pst";	1053	aio_rename "$filename.pst~", "$filename.pst";
904	}	1054	}
905	} else {	1055	} else {
906	aio_unlink "$filename.pst";	1056	aio_unlink "$filename.pst";
…		…
912	}	1062	}
913	} else {	1063	} else {
914	aio_unlink $filename;	1064	aio_unlink $filename;
915	aio_unlink "$filename.pst";	1065	aio_unlink "$filename.pst";
916	}	1066	}
917	}	1067	};
918	}	1068	}
919		1069
920	sub object_freezer_as_string {	1070	sub object_freezer_as_string {
921	my ($rdata, $objs) = @_;	1071	my ($rdata, $objs) = @_;
922		1072
…		…
934	or return;	1084	or return;
935		1085
936	unless (aio_stat "$filename.pst") {	1086	unless (aio_stat "$filename.pst") {
937	(aio_load "$filename.pst", $av) >= 0	1087	(aio_load "$filename.pst", $av) >= 0
938	or return;	1088	or return;
		1089
939	$av = eval { (Storable::thaw $av)->{objs} };	1090	$av = eval { (Storable::thaw $av)->{objs} };
940	}	1091	}
941		1092
		1093	utf8::decode (my $decname = $filename);
942	warn sprintf "loading %s (%d)\n",	1094	warn sprintf "loading %s (%d,%d)\n",
943	$filename, length $data, scalar @{$av || []};#d#	1095	$decname, length $data, scalar @{$av || []};
		1096
944	return ($data, $av);	1097	($data, $av)
945	}	1098	}
		1099
		1100	=head2 COMMAND CALLBACKS
		1101
		1102	=over 4
		1103
		1104	=cut
946		1105
947	#############################################################################	1106	#############################################################################
948	# command handling &c	1107	# command handling &c
949		1108
950	=item cf::register_command $name => \&callback($ob,$args);	1109	=item cf::register_command $name => \&callback($ob,$args);
…		…
963	push @{ $COMMAND{$name} }, [$caller, $cb];	1122	push @{ $COMMAND{$name} }, [$caller, $cb];
964	}	1123	}
965		1124
966	=item cf::register_extcmd $name => \&callback($pl,$packet);	1125	=item cf::register_extcmd $name => \&callback($pl,$packet);
967		1126
968	Register a callbackf ro execution when the client sends an extcmd packet.	1127	Register a callback for execution when the client sends an (synchronous)
		1128	extcmd packet. Ext commands will be processed in the order they are
		1129	received by the server, like other user commands. The first argument is
		1130	the logged-in player. Ext commands can only be processed after a player
		1131	has logged in successfully.
969		1132
970	If the callback returns something, it is sent back as if reply was being	1133	If the callback returns something, it is sent back as if reply was being
971	called.	1134	called.
972		1135
		1136	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1137
		1138	Register a callback for execution when the client sends an (asynchronous)
		1139	exticmd packet. Exti commands are processed by the server as soon as they
		1140	are received, i.e. out of order w.r.t. other commands. The first argument
		1141	is a client socket. Exti commands can be received anytime, even before
		1142	log-in.
		1143
		1144	If the callback returns something, it is sent back as if reply was being
		1145	called.
		1146
973	=cut	1147	=cut
974		1148
975	sub register_extcmd {	1149	sub register_extcmd {
976	my ($name, $cb) = @_;	1150	my ($name, $cb) = @_;
977		1151
978	$EXTCMD{$name} = $cb;	1152	$EXTCMD{$name} = $cb;
		1153	}
		1154
		1155	sub register_exticmd {
		1156	my ($name, $cb) = @_;
		1157
		1158	$EXTICMD{$name} = $cb;
979	}	1159	}
980		1160
981	cf::player->attach (	1161	cf::player->attach (
982	on_command => sub {	1162	on_command => sub {
983	my ($pl, $name, $params) = @_;	1163	my ($pl, $name, $params) = @_;
…		…
992	cf::override;	1172	cf::override;
993	},	1173	},
994	on_extcmd => sub {	1174	on_extcmd => sub {
995	my ($pl, $buf) = @_;	1175	my ($pl, $buf) = @_;
996		1176
997	my $msg = eval { from_json $buf };	1177	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
998		1178
999	if (ref $msg) {	1179	if (ref $msg) {
		1180	my ($type, $reply, @payload) =
		1181	"ARRAY" eq ref $msg
		1182	? @$msg
		1183	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1184
		1185	my @reply;
		1186
1000	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1187	if (my $cb = $EXTCMD{$type}) {
1001	if (my %reply = $cb->($pl, $msg)) {	1188	@reply = $cb->($pl, @payload);
1002	$pl->ext_reply ($msg->{msgid}, %reply);
1003	}
1004	}	1189	}
		1190
		1191	$pl->ext_reply ($reply, @reply)
		1192	if $reply;
		1193
1005	} else {	1194	} else {
1006	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1195	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
1007	}	1196	}
1008		1197
1009	cf::override;	1198	cf::override;
1010	},	1199	},
1011	);	1200	);
1012		1201
1013	sub load_extension {
1014	my ($path) = @_;
1015
1016	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
1017	my $base = $1;
1018	my $pkg = $1;
1019	$pkg =~ s/[^[:word:]]/_/g;
1020	$pkg = "ext::$pkg";
1021
1022	warn "... loading '$path' into '$pkg'\n";
1023
1024	open my $fh, "<:utf8", $path
1025	or die "$path: $!";
1026
1027	my $source =
1028	"package $pkg; use strict; use utf8;\n"
1029	. "#line 1 \"$path\"\n{\n"
1030	. (do { local $/; <$fh> })
1031	. "\n};\n1";
1032
1033	eval $source
1034	or die $@ ? "$path: $@\n"
1035	: "extension disabled.\n";
1036
1037	push @EXTS, $pkg;
1038	}
1039
1040	sub load_extensions {	1202	sub load_extensions {
		1203	cf::sync_job {
		1204	my %todo;
		1205
1041	for my $ext (<$LIBDIR/*.ext>) {	1206	for my $path (<$LIBDIR/*.ext>) {
1042	next unless -r $ext;	1207	next unless -r $path;
1043	eval {	1208
1044	load_extension $ext;	1209	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1210	my $base = $1;
		1211	my $pkg = $1;
		1212	$pkg =~ s/[^[:word:]]/_/g;
		1213	$pkg = "ext::$pkg";
		1214
		1215	open my $fh, "<:utf8", $path
		1216	or die "$path: $!";
		1217
		1218	my $source = do { local $/; <$fh> };
		1219
		1220	my %ext = (
		1221	path => $path,
		1222	base => $base,
		1223	pkg => $pkg,
		1224	);
		1225
		1226	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1227	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1228
		1229	$ext{source} =
		1230	"package $pkg; use strict; use utf8;\n"
		1231	. "#line 1 \"$path\"\n{\n"
		1232	. $source
		1233	. "\n};\n1";
		1234
		1235	$todo{$base} = \%ext;
		1236	}
		1237
		1238	my %done;
		1239	while (%todo) {
		1240	my $progress;
		1241
		1242	while (my ($k, $v) = each %todo) {
		1243	for (split /,\s*/, $v->{meta}{depends}) {
		1244	goto skip
		1245	unless exists $done{$_};
		1246	}
		1247
		1248	warn "... loading '$k' into '$v->{pkg}'\n";
		1249
		1250	unless (eval $v->{source}) {
		1251	my $msg = $@ ? "$v->{path}: $@\n"
		1252	: "$v->{base}: extension inactive.\n";
		1253
		1254	if (exists $v->{meta}{mandatory}) {
		1255	warn $msg;
		1256	warn "mandatory extension failed to load, exiting.\n";
		1257	exit 1;
		1258	}
		1259
		1260	warn $msg;
		1261	}
		1262
		1263	$done{$k} = delete $todo{$k};
		1264	push @EXTS, $v->{pkg};
		1265	$progress = 1;
1045	1	1266	}
1046	} or warn "$ext not loaded: $@";	1267
		1268	skip:
		1269	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1270	unless $progress;
		1271	}
1047	}	1272	};
1048	}	1273	}
1049		1274
1050	#############################################################################	1275	#############################################################################
1051	# load/save/clean perl data associated with a map
1052		1276
1053	*cf::mapsupport::on_clean = sub {	1277	=back
1054	my ($map) = @_;
1055
1056	my $path = $map->tmpname;
1057	defined $path or return;
1058
1059	unlink "$path.pst";
1060	};
1061
1062	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1063
1064	#############################################################################
1065		1278
1066	=head2 CORE EXTENSIONS	1279	=head2 CORE EXTENSIONS
1067		1280
1068	Functions and methods that extend core crossfire objects.	1281	Functions and methods that extend core crossfire objects.
1069		1282
…		…
1075		1288
1076	=head3 cf::player	1289	=head3 cf::player
1077		1290
1078	=over 4	1291	=over 4
1079		1292
		1293	=item cf::player::num_playing
		1294
		1295	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1296
		1297	=cut
		1298
		1299	sub num_playing {
		1300	scalar grep
		1301	$_->ob->map
		1302	&& !$_->hidden
		1303	&& !$_->ob->flag (cf::FLAG_WIZ),
		1304	cf::player::list
		1305	}
		1306
1080	=item cf::player::find $login	1307	=item cf::player::find $login
1081		1308
1082	Returns the given player object, loading it if necessary (might block).	1309	Returns the given player object, loading it if necessary (might block).
1083		1310
1084	=cut	1311	=cut
1085		1312
1086	sub playerdir($) {	1313	sub playerdir($) {
1087	cf::localdir	1314	"$PLAYERDIR/"
1088	. "/"
1089	. cf::playerdir
1090	. "/"
1091	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1315	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1092	}	1316	}
1093		1317
1094	sub path($) {	1318	sub path($) {
1095	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1319	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1096		1320
1097	(playerdir $login) . "/$login.pl"	1321	(playerdir $login) . "/playerdata"
1098	}	1322	}
1099		1323
1100	sub find_active($) {	1324	sub find_active($) {
1101	$cf::PLAYER{$_[0]}	1325	$cf::PLAYER{$_[0]}
1102	and $cf::PLAYER{$_[0]}->active	1326	and $cf::PLAYER{$_[0]}->active
…		…
1105		1329
1106	sub exists($) {	1330	sub exists($) {
1107	my ($login) = @_;	1331	my ($login) = @_;
1108		1332
1109	$cf::PLAYER{$login}	1333	$cf::PLAYER{$login}
1110	or cf::sync_job { !aio_stat $login }	1334	or cf::sync_job { !aio_stat path $login }
1111	}	1335	}
1112		1336
1113	sub find($) {	1337	sub find($) {
1114	return $cf::PLAYER{$_[0]} || do {	1338	return $cf::PLAYER{$_[0]} || do {
1115	my $login = $_[0];	1339	my $login = $_[0];
1116		1340
1117	my $guard = cf::lock_acquire "user_find:$login";	1341	my $guard = cf::lock_acquire "user_find:$login";
1118		1342
1119	$cf::PLAYER{$_[0]} || do {	1343	$cf::PLAYER{$_[0]} || do {
1120	my $pl = load_pl path $login	1344	# rename old playerfiles to new ones
		1345	#TODO: remove when no longer required
		1346	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1347	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1348	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1349	aio_unlink +(playerdir $login) . "/$login.pl";
		1350
		1351	my $f = new_from_file cf::object::thawer path $login
1121	or return;	1352	or return;
		1353
		1354	my $pl = cf::player::load_pl $f
		1355	or return;
		1356	local $cf::PLAYER_LOADING{$login} = $pl;
		1357	$f->resolve_delayed_derefs;
1122	$cf::PLAYER{$login} = $pl	1358	$cf::PLAYER{$login} = $pl
1123	}	1359	}
1124	}	1360	}
1125	}	1361	}
1126		1362
…		…
1136		1372
1137	aio_mkdir playerdir $pl, 0770;	1373	aio_mkdir playerdir $pl, 0770;
1138	$pl->{last_save} = $cf::RUNTIME;	1374	$pl->{last_save} = $cf::RUNTIME;
1139		1375
1140	$pl->save_pl ($path);	1376	$pl->save_pl ($path);
1141	Coro::cede;	1377	cf::cede_to_tick;
1142	}	1378	}
1143		1379
1144	sub new($) {	1380	sub new($) {
1145	my ($login) = @_;	1381	my ($login) = @_;
1146		1382
…		…
1152	$cf::PLAYER{$login} = $self;	1388	$cf::PLAYER{$login} = $self;
1153		1389
1154	$self	1390	$self
1155	}	1391	}
1156		1392
		1393	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1394
		1395	=cut
		1396
		1397	sub send_msg {
		1398	my $ns = shift->ns
		1399	or return;
		1400	$ns->send_msg (@_);
		1401	}
		1402
1157	=item $pl->quit_character	1403	=item $pl->quit_character
1158		1404
1159	Nukes the player without looking back. If logged in, the connection will	1405	Nukes the player without looking back. If logged in, the connection will
1160	be destroyed. May block for a long time.	1406	be destroyed. May block for a long time.
1161		1407
1162	=cut	1408	=cut
1163		1409
1164	sub quit_character {	1410	sub quit_character {
1165	my ($pl) = @_;	1411	my ($pl) = @_;
		1412
		1413	my $name = $pl->ob->name;
1166		1414
1167	$pl->{deny_save} = 1;	1415	$pl->{deny_save} = 1;
1168	$pl->password ("*"); # this should lock out the player until we nuked the dir	1416	$pl->password ("*"); # this should lock out the player until we nuked the dir
1169		1417
1170	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1418	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1175	my $path = playerdir $pl;	1423	my $path = playerdir $pl;
1176	my $temp = "$path~$cf::RUNTIME~deleting~";	1424	my $temp = "$path~$cf::RUNTIME~deleting~";
1177	aio_rename $path, $temp;	1425	aio_rename $path, $temp;
1178	delete $cf::PLAYER{$pl->ob->name};	1426	delete $cf::PLAYER{$pl->ob->name};
1179	$pl->destroy;	1427	$pl->destroy;
		1428
		1429	my $prefix = qr<^~\Q$name\E/>;
		1430
		1431	# nuke player maps
		1432	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1433
1180	IO::AIO::aio_rmtree $temp;	1434	IO::AIO::aio_rmtree $temp;
		1435	}
		1436
		1437	=item $pl->kick
		1438
		1439	Kicks a player out of the game. This destroys the connection.
		1440
		1441	=cut
		1442
		1443	sub kick {
		1444	my ($pl, $kicker) = @_;
		1445
		1446	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1447	$pl->killer ("kicked");
		1448	$pl->ns->destroy;
1181	}	1449	}
1182		1450
1183	=item cf::player::list_logins	1451	=item cf::player::list_logins
1184		1452
1185	Returns am arrayref of all valid playernames in the system, can take a	1453	Returns am arrayref of all valid playernames in the system, can take a
1186	while and may block, so not sync_job-capable, ever.	1454	while and may block, so not sync_job-capable, ever.
1187		1455
1188	=cut	1456	=cut
1189		1457
1190	sub list_logins {	1458	sub list_logins {
1191	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1459	my $dirs = aio_readdir $PLAYERDIR
1192	or return [];	1460	or return [];
1193		1461
1194	my @logins;	1462	my @logins;
1195		1463
1196	for my $login (@$dirs) {	1464	for my $login (@$dirs) {
		1465	my $path = path $login;
		1466
		1467	# a .pst is a dead give-away for a valid player
		1468	unless (-e "$path.pst") {
1197	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1469	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1198	aio_read $fh, 0, 512, my $buf, 0 or next;	1470	aio_read $fh, 0, 512, my $buf, 0 or next;
1199	$buf !~ /^password -------------$/m or next; # official not-valid tag	1471	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1472	}
1200		1473
1201	utf8::decode $login;	1474	utf8::decode $login;
1202	push @logins, $login;	1475	push @logins, $login;
1203	}	1476	}
1204		1477
1205	\@logins	1478	\@logins
1206	}	1479	}
1207		1480
1208	=item $player->maps	1481	=item $player->maps
1209		1482
1210	Returns an arrayref of cf::path's of all maps that are private for this	1483	Returns an arrayref of map paths that are private for this
1211	player. May block.	1484	player. May block.
1212		1485
1213	=cut	1486	=cut
1214		1487
1215	sub maps($) {	1488	sub maps($) {
1216	my ($pl) = @_;	1489	my ($pl) = @_;
		1490
		1491	$pl = ref $pl ? $pl->ob->name : $pl;
1217		1492
1218	my $files = aio_readdir playerdir $pl	1493	my $files = aio_readdir playerdir $pl
1219	or return;	1494	or return;
1220		1495
1221	my @paths;	1496	my @paths;
…		…
1223	for (@$files) {	1498	for (@$files) {
1224	utf8::decode $_;	1499	utf8::decode $_;
1225	next if /\.(?:pl|pst)$/;	1500	next if /\.(?:pl|pst)$/;
1226	next unless /^$PATH_SEP/o;	1501	next unless /^$PATH_SEP/o;
1227		1502
1228	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1503	push @paths, cf::map::normalise "~$pl/$_";
1229	}	1504	}
1230		1505
1231	\@paths	1506	\@paths
1232	}	1507	}
1233		1508
		1509	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1510
		1511	Expand crossfire pod fragments into protocol xml.
		1512
		1513	=cut
		1514
		1515	sub expand_cfpod {
		1516	((my $self), (local $_)) = @_;
		1517
		1518	# escape & and <
		1519	s/&/&amp;/g;
		1520	s/(?<![BIUGHT])</&lt;/g;
		1521
		1522	# this is buggy, it needs to properly take care of nested <'s
		1523
		1524	1 while
		1525	# replace B<>, I<>, U<> etc.
		1526	s/B<([^\>]*)>/<b>$1<\/b>/
		1527	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1528	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1529	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1530	# replace G<male|female> tags
		1531	|| s{G<([^>|]*)\|([^>]*)>}{
		1532	$self->gender ? $2 : $1
		1533	}ge
		1534	# replace H<hint text>
		1535	|| s{H<([^\>]*)>}
		1536	{
		1537	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1538	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1539	"")
		1540	[$self->{hintmode}]
		1541	}ge;
		1542
		1543	# create single paragraphs (very hackish)
		1544	s/(?<=\S)\n(?=\w)/ /g;
		1545
		1546	# compress some whitespace
		1547	s/\s+\n/\n/g; # ws line-ends
		1548	s/\n\n+/\n/g; # double lines
		1549	s/^\n+//; # beginning lines
		1550	s/\n+$//; # ending lines
		1551
		1552	$_
		1553	}
		1554
		1555	sub hintmode {
		1556	$_[0]{hintmode} = $_[1] if @_ > 1;
		1557	$_[0]{hintmode}
		1558	}
		1559
1234	=item $player->ext_reply ($msgid, $msgtype, %msg)	1560	=item $player->ext_reply ($msgid, @msg)
1235		1561
1236	Sends an ext reply to the player.	1562	Sends an ext reply to the player.
1237		1563
1238	=cut	1564	=cut
1239		1565
1240	sub ext_reply($$$%) {	1566	sub ext_reply($$@) {
1241	my ($self, $id, %msg) = @_;	1567	my ($self, $id, @msg) = @_;
1242		1568
1243	$msg{msgid} = $id;	1569	$self->ns->ext_reply ($id, @msg)
1244
1245	$self->send ("ext " . cf::to_json \%msg);
1246	}	1570	}
1247		1571
1248	package cf;	1572	=item $player->ext_msg ($type, @msg)
		1573
		1574	Sends an ext event to the client.
		1575
		1576	=cut
		1577
		1578	sub ext_msg($$@) {
		1579	my ($self, $type, @msg) = @_;
		1580
		1581	$self->ns->ext_msg ($type, @msg);
		1582	}
		1583
		1584	=head3 cf::region
		1585
		1586	=over 4
		1587
		1588	=cut
		1589
		1590	package cf::region;
		1591
		1592	=item cf::region::find_by_path $path
		1593
		1594	Tries to decuce the likely region for a map knowing only its path.
		1595
		1596	=cut
		1597
		1598	sub find_by_path($) {
		1599	my ($path) = @_;
		1600
		1601	my ($match, $specificity);
		1602
		1603	for my $region (list) {
		1604	if ($region->{match} && $path =~ $region->{match}) {
		1605	($match, $specificity) = ($region, $region->specificity)
		1606	if $region->specificity > $specificity;
		1607	}
		1608	}
		1609
		1610	$match
		1611	}
1249		1612
1250	=back	1613	=back
1251
1252		1614
1253	=head3 cf::map	1615	=head3 cf::map
1254		1616
1255	=over 4	1617	=over 4
1256		1618
…		…
1259	package cf::map;	1621	package cf::map;
1260		1622
1261	use Fcntl;	1623	use Fcntl;
1262	use Coro::AIO;	1624	use Coro::AIO;
1263		1625
		1626	use overload
		1627	'""' => \&as_string,
		1628	fallback => 1;
		1629
1264	our $MAX_RESET = 3600;	1630	our $MAX_RESET = 3600;
1265	our $DEFAULT_RESET = 3000;	1631	our $DEFAULT_RESET = 3000;
1266		1632
1267	sub generate_random_map {	1633	sub generate_random_map {
1268	my ($path, $rmp) = @_;	1634	my ($self, $rmp) = @_;
1269
1270	# mit "rum" bekleckern, nicht	1635	# mit "rum" bekleckern, nicht
1271	cf::map::_create_random_map (	1636	$self->_create_random_map (
1272	$path,
1273	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1637	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1274	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1638	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1275	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1639	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1276	$rmp->{exit_on_final_map},	1640	$rmp->{exit_on_final_map},
1277	$rmp->{xsize}, $rmp->{ysize},	1641	$rmp->{xsize}, $rmp->{ysize},
…		…
1282	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1646	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1283	(cf::region::find $rmp->{region}), $rmp->{custom}	1647	(cf::region::find $rmp->{region}), $rmp->{custom}
1284	)	1648	)
1285	}	1649	}
1286		1650
		1651	=item cf::map->register ($regex, $prio)
		1652
		1653	Register a handler for the map path matching the given regex at the
		1654	givne priority (higher is better, built-in handlers have priority 0, the
		1655	default).
		1656
		1657	=cut
		1658
		1659	sub register {
		1660	my (undef, $regex, $prio) = @_;
		1661	my $pkg = caller;
		1662
		1663	no strict;
		1664	push @{"$pkg\::ISA"}, __PACKAGE__;
		1665
		1666	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1667	}
		1668
		1669	# also paths starting with '/'
		1670	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1671
		1672	sub thawer_merge {
		1673	my ($self, $merge) = @_;
		1674
		1675	# we have to keep some variables in memory intact
		1676	local $self->{path};
		1677	local $self->{load_path};
		1678
		1679	$self->SUPER::thawer_merge ($merge);
		1680	}
		1681
		1682	sub normalise {
		1683	my ($path, $base) = @_;
		1684
		1685	$path = "$path"; # make sure its a string
		1686
		1687	$path =~ s/\.map$//;
		1688
		1689	# map plan:
		1690	#
		1691	# /! non-realised random map exit (special hack!)
		1692	# {... are special paths that are not being touched
		1693	# ?xxx/... are special absolute paths
		1694	# ?random/... random maps
		1695	# /... normal maps
		1696	# ~user/... per-player map of a specific user
		1697
		1698	$path =~ s/$PATH_SEP/\//go;
		1699
		1700	# treat it as relative path if it starts with
		1701	# something that looks reasonable
		1702	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1703	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1704
		1705	$base =~ s{[^/]+/?$}{};
		1706	$path = "$base/$path";
		1707	}
		1708
		1709	for ($path) {
		1710	redo if s{//}{/};
		1711	redo if s{/\.?/}{/};
		1712	redo if s{/[^/]+/\.\./}{/};
		1713	}
		1714
		1715	$path
		1716	}
		1717
		1718	sub new_from_path {
		1719	my (undef, $path, $base) = @_;
		1720
		1721	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1722
		1723	$path = normalise $path, $base;
		1724
		1725	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1726	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1727	my $self = bless cf::map::new, $pkg;
		1728	$self->{path} = $path; $self->path ($path);
		1729	$self->init; # pass $1 etc.
		1730	return $self;
		1731	}
		1732	}
		1733
		1734	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1735	()
		1736	}
		1737
		1738	sub init {
		1739	my ($self) = @_;
		1740
		1741	$self
		1742	}
		1743
		1744	sub as_string {
		1745	my ($self) = @_;
		1746
		1747	"$self->{path}"
		1748	}
		1749
		1750	# the displayed name, this is a one way mapping
		1751	sub visible_name {
		1752	&as_string
		1753	}
		1754
		1755	# the original (read-only) location
		1756	sub load_path {
		1757	my ($self) = @_;
		1758
		1759	"$MAPDIR/$self->{path}.map"
		1760	}
		1761
		1762	# the temporary/swap location
		1763	sub save_path {
		1764	my ($self) = @_;
		1765
		1766	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1767	"$TMPDIR/$path.map"
		1768	}
		1769
		1770	# the unique path, undef == no special unique path
		1771	sub uniq_path {
		1772	my ($self) = @_;
		1773
		1774	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1775	"$UNIQUEDIR/$path"
		1776	}
		1777
1287	# and all this just because we cannot iterate over	1778	# and all this just because we cannot iterate over
1288	# all maps in C++...	1779	# all maps in C++...
1289	sub change_all_map_light {	1780	sub change_all_map_light {
1290	my ($change) = @_;	1781	my ($change) = @_;
1291		1782
1292	$_->change_map_light ($change)	1783	$_->change_map_light ($change)
1293	for grep $_->outdoor, values %cf::MAP;	1784	for grep $_->outdoor, values %cf::MAP;
1294	}	1785	}
1295		1786
		1787	sub decay_objects {
		1788	my ($self) = @_;
		1789
		1790	return if $self->{deny_reset};
		1791
		1792	$self->do_decay_objects;
		1793	}
		1794
		1795	sub unlink_save {
		1796	my ($self) = @_;
		1797
		1798	utf8::encode (my $save = $self->save_path);
		1799	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1800	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1801	}
		1802
1296	sub load_map_header($) {	1803	sub load_header_from($) {
1297	my ($path) = @_;	1804	my ($self, $path) = @_;
1298		1805
1299	utf8::encode $path;	1806	utf8::encode $path;
1300	aio_open $path, O_RDONLY, 0	1807	my $f = new_from_file cf::object::thawer $path
1301	or return;	1808	or return;
1302		1809
1303	my $map = cf::map::new	1810	$self->_load_header ($f)
1304	or return;	1811	or return;
1305		1812
1306	# for better error messages only, will be overwritten later	1813	local $MAP_LOADING{$self->{path}} = $self;
1307	$map->path ($path);	1814	$f->resolve_delayed_derefs;
1308		1815
1309	$map->load_header ($path)	1816	$self->{load_path} = $path;
		1817
		1818	1
		1819	}
		1820
		1821	sub load_header_orig {
		1822	my ($self) = @_;
		1823
		1824	$self->load_header_from ($self->load_path)
		1825	}
		1826
		1827	sub load_header_temp {
		1828	my ($self) = @_;
		1829
		1830	$self->load_header_from ($self->save_path)
		1831	}
		1832
		1833	sub prepare_temp {
		1834	my ($self) = @_;
		1835
		1836	$self->last_access ((delete $self->{last_access})
		1837	|| $cf::RUNTIME); #d#
		1838	# safety
		1839	$self->{instantiate_time} = $cf::RUNTIME
		1840	if $self->{instantiate_time} > $cf::RUNTIME;
		1841	}
		1842
		1843	sub prepare_orig {
		1844	my ($self) = @_;
		1845
		1846	$self->{load_original} = 1;
		1847	$self->{instantiate_time} = $cf::RUNTIME;
		1848	$self->last_access ($cf::RUNTIME);
		1849	$self->instantiate;
		1850	}
		1851
		1852	sub load_header {
		1853	my ($self) = @_;
		1854
		1855	if ($self->load_header_temp) {
		1856	$self->prepare_temp;
		1857	} else {
		1858	$self->load_header_orig
1310	or return;	1859	or return;
		1860	$self->prepare_orig;
		1861	}
1311		1862
1312	$map->{load_path} = $path;	1863	$self->{deny_reset} = 1
		1864	if $self->no_reset;
1313		1865
1314	$map	1866	$self->default_region (cf::region::find_by_path $self->{path})
		1867	unless $self->default_region;
		1868
		1869	1
1315	}	1870	}
1316		1871
1317	sub find;	1872	sub find;
1318	sub find {	1873	sub find {
1319	my ($path, $origin) = @_;	1874	my ($path, $origin) = @_;
1320		1875
1321	#warn "find<$path,$origin>\n";#d#
1322
1323	$path = new cf::path $path, $origin && $origin->path;	1876	$path = normalise $path, $origin && $origin->path;
1324	my $key = $path->as_string;
1325		1877
		1878	cf::lock_wait "map_data:$path";#d#remove
1326	cf::lock_wait "map_find:$key";	1879	cf::lock_wait "map_find:$path";
1327		1880
1328	$cf::MAP{$key} || do {	1881	$cf::MAP{$path} || do {
1329	my $guard = cf::lock_acquire "map_find:$key";	1882	my $guard1 = cf::lock_acquire "map_find:$path";
		1883	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1330		1884
1331	# do it the slow way	1885	my $map = new_from_path cf::map $path
1332	my $map = $path->load_temp;
1333
1334	Coro::cede;
1335
1336	if ($map) {
1337	$map->last_access ((delete $map->{last_access})
1338	|| $cf::RUNTIME); #d#
1339	# safety
1340	$map->{instantiate_time} = $cf::RUNTIME
1341	if $map->{instantiate_time} > $cf::RUNTIME;
1342	} else {
1343	$map = $path->load_orig
1344	or return;	1886	or return;
1345		1887
1346	$map->{load_original} = 1;
1347	$map->{instantiate_time} = $cf::RUNTIME;
1348	$map->last_access ($cf::RUNTIME);
1349	$map->instantiate;
1350
1351	# per-player maps become, after loading, normal maps
1352	$map->per_player (0) if $path->{user_rel};
1353	}
1354
1355	$map->path ($key);
1356	$map->{path} = $path;
1357	$map->{last_save} = $cf::RUNTIME;	1888	$map->{last_save} = $cf::RUNTIME;
1358		1889
1359	Coro::cede;	1890	$map->load_header
		1891	or return;
1360		1892
1361	if ($map->should_reset) {	1893	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1894	# doing this can freeze the server in a sync job, obviously
		1895	#$cf::WAIT_FOR_TICK->wait;
		1896	undef $guard1;
		1897	undef $guard2;
1362	$map->reset;	1898	$map->reset;
1363	undef $guard;
1364	$map = find $path	1899	return find $path;
1365	or return;
1366	}	1900	}
1367		1901
1368	$cf::MAP{$key} = $map	1902	$cf::MAP{$path} = $map
1369	}	1903	}
1370	}	1904	}
		1905
		1906	sub pre_load { }
		1907	sub post_load { }
1371		1908
1372	sub load {	1909	sub load {
1373	my ($self) = @_;	1910	my ($self) = @_;
1374		1911
		1912	local $self->{deny_reset} = 1; # loading can take a long time
		1913
1375	my $path = $self->{path};	1914	my $path = $self->{path};
		1915
		1916	{
1376	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1917	my $guard = cf::lock_acquire "map_data:$path";
1377		1918
		1919	return unless $self->valid;
1378	return if $self->in_memory != cf::MAP_SWAPPED;	1920	return unless $self->in_memory == cf::MAP_SWAPPED;
1379		1921
1380	$self->in_memory (cf::MAP_LOADING);	1922	$self->in_memory (cf::MAP_LOADING);
1381		1923
1382	$self->alloc;	1924	$self->alloc;
1383	$self->load_objects ($self->{load_path}, 1)	1925
		1926	$self->pre_load;
		1927	cf::cede_to_tick;
		1928
		1929	my $f = new_from_file cf::object::thawer $self->{load_path};
		1930	$f->skip_block;
		1931	$self->_load_objects ($f)
1384	or return;	1932	or return;
1385		1933
1386	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1934	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1387	if delete $self->{load_original};	1935	if delete $self->{load_original};
1388		1936
1389	if (my $uniq = $path->uniq_path) {	1937	if (my $uniq = $self->uniq_path) {
1390	utf8::encode $uniq;	1938	utf8::encode $uniq;
1391	if (aio_open $uniq, O_RDONLY, 0) {	1939	unless (aio_stat $uniq) {
		1940	if (my $f = new_from_file cf::object::thawer $uniq) {
1392	$self->clear_unique_items;	1941	$self->clear_unique_items;
1393	$self->load_objects ($uniq, 0);	1942	$self->_load_objects ($f);
		1943	$f->resolve_delayed_derefs;
		1944	}
1394	}	1945	}
1395	}	1946	}
1396		1947
1397	Coro::cede;	1948	$f->resolve_delayed_derefs;
1398		1949
		1950	cf::cede_to_tick;
1399	# now do the right thing for maps	1951	# now do the right thing for maps
1400	$self->link_multipart_objects;	1952	$self->link_multipart_objects;
1401
1402	if ($self->{path}->is_style_map) {
1403	$self->{deny_save} = 1;
1404	$self->{deny_reset} = 1;
1405	} else {
1406	$self->fix_auto_apply;
1407	$self->decay_objects;
1408	$self->update_buttons;
1409	$self->set_darkness_map;
1410	$self->difficulty ($self->estimate_difficulty)	1953	$self->difficulty ($self->estimate_difficulty)
1411	unless $self->difficulty;	1954	unless $self->difficulty;
		1955	cf::cede_to_tick;
		1956
		1957	unless ($self->{deny_activate}) {
		1958	$self->decay_objects;
		1959	$self->fix_auto_apply;
		1960	$self->update_buttons;
		1961	cf::cede_to_tick;
		1962	$self->set_darkness_map;
		1963	cf::cede_to_tick;
1412	$self->activate;	1964	$self->activate;
1413	}	1965	}
1414		1966
1415	Coro::cede;	1967	$self->{last_save} = $cf::RUNTIME;
		1968	$self->last_access ($cf::RUNTIME);
1416		1969
1417	$self->in_memory (cf::MAP_IN_MEMORY);	1970	$self->in_memory (cf::MAP_IN_MEMORY);
		1971	}
		1972
		1973	$self->post_load;
		1974	}
		1975
		1976	sub customise_for {
		1977	my ($self, $ob) = @_;
		1978
		1979	return find "~" . $ob->name . "/" . $self->{path}
		1980	if $self->per_player;
		1981
		1982	# return find "?party/" . $ob->name . "/" . $self->{path}
		1983	# if $self->per_party;
		1984
		1985	$self
1418	}	1986	}
1419		1987
1420	# find and load all maps in the 3x3 area around a map	1988	# find and load all maps in the 3x3 area around a map
1421	sub load_diag {	1989	sub load_neighbours {
1422	my ($map) = @_;	1990	my ($map) = @_;
1423		1991
1424	my @diag; # diagonal neighbours	1992	my @neigh; # diagonal neighbours
1425		1993
1426	for (0 .. 3) {	1994	for (0 .. 3) {
1427	my $neigh = $map->tile_path ($_)	1995	my $neigh = $map->tile_path ($_)
1428	or next;	1996	or next;
1429	$neigh = find $neigh, $map	1997	$neigh = find $neigh, $map
1430	or next;	1998	or next;
1431	$neigh->load;	1999	$neigh->load;
1432		2000
		2001	push @neigh,
1433	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2002	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1434	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2003	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1435	}	2004	}
1436		2005
1437	for (@diag) {	2006	for (grep defined $_->[0], @neigh) {
		2007	my ($path, $origin) = @$_;
1438	my $neigh = find @$_	2008	my $neigh = find $path, $origin
1439	or next;	2009	or next;
1440	$neigh->load;	2010	$neigh->load;
1441	}	2011	}
1442	}	2012	}
1443		2013
…		…
1448	}	2018	}
1449		2019
1450	sub do_load_sync {	2020	sub do_load_sync {
1451	my ($map) = @_;	2021	my ($map) = @_;
1452		2022
		2023	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2024	if $Coro::current == $Coro::main;
		2025
1453	cf::sync_job { $map->load };	2026	cf::sync_job { $map->load };
1454	}	2027	}
1455		2028
1456	our %MAP_PREFETCH;	2029	our %MAP_PREFETCH;
		2030	our $MAP_PREFETCHER = undef;
		2031
		2032	sub find_async {
		2033	my ($path, $origin, $load) = @_;
		2034
		2035	$path = normalise $path, $origin && $origin->{path};
		2036
		2037	if (my $map = $cf::MAP{$path}) {
		2038	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2039	}
		2040
		2041	$MAP_PREFETCH{$path} |= $load;
		2042
1457	our $MAP_PREFETCHER = Coro::async {	2043	$MAP_PREFETCHER ||= cf::async {
1458	while () {	2044	$Coro::current->{desc} = "map prefetcher";
		2045
1459	while (%MAP_PREFETCH) {	2046	while (%MAP_PREFETCH) {
1460	my $key = each %MAP_PREFETCH	2047	while (my ($k, $v) = each %MAP_PREFETCH) {
1461	or next;	2048	if (my $map = find $k) {
		2049	$map->load if $v;
		2050	}
		2051
1462	my $path = delete $MAP_PREFETCH{$key};	2052	delete $MAP_PREFETCH{$k};
1463
1464	my $map = find $path
1465	or next;
1466	$map->load;
1467	}	2053	}
1468	Coro::schedule;	2054	}
		2055	undef $MAP_PREFETCHER;
1469	}	2056	};
1470	};
1471
1472	sub find_async {
1473	my ($path, $origin) = @_;
1474
1475	$path = new cf::path $path, $origin && $origin->path;
1476	my $key = $path->as_string;
1477
1478	if (my $map = $cf::MAP{$key}) {
1479	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1480	}
1481
1482	$MAP_PREFETCH{$key} = $path;
1483	$MAP_PREFETCHER->ready;	2057	$MAP_PREFETCHER->prio (6);
1484		2058
1485	()	2059	()
1486	}	2060	}
1487		2061
1488	sub save {	2062	sub save {
1489	my ($self) = @_;	2063	my ($self) = @_;
1490		2064
1491	my $lock = cf::lock_acquire "map_data:" . $self->path;	2065	my $lock = cf::lock_acquire "map_data:$self->{path}";
1492		2066
1493	$self->{last_save} = $cf::RUNTIME;	2067	$self->{last_save} = $cf::RUNTIME;
1494		2068
1495	return unless $self->dirty;	2069	return unless $self->dirty;
1496		2070
1497	my $save = $self->{path}->save_path; utf8::encode $save;	2071	my $save = $self->save_path; utf8::encode $save;
1498	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2072	my $uniq = $self->uniq_path; utf8::encode $uniq;
1499		2073
1500	$self->{load_path} = $save;	2074	$self->{load_path} = $save;
1501		2075
1502	return if $self->{deny_save};	2076	return if $self->{deny_save};
1503		2077
1504	local $self->{last_access} = $self->last_access;#d#	2078	local $self->{last_access} = $self->last_access;#d#
1505		2079
1506	cf::async {	2080	cf::async {
		2081	$Coro::current->{desc} = "map player save";
1507	$_->contr->save for $self->players;	2082	$_->contr->save for $self->players;
1508	};	2083	};
1509		2084
1510	if ($uniq) {	2085	if ($uniq) {
1511	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2086	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1512	$self->save_objects ($uniq, cf::IO_UNIQUES);	2087	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1513	} else {	2088	} else {
1514	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2089	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1515	}	2090	}
1516	}	2091	}
1517		2092
1518	sub swap_out {	2093	sub swap_out {
1519	my ($self) = @_;	2094	my ($self) = @_;
1520		2095
1521	# save first because save cedes	2096	# save first because save cedes
1522	$self->save;	2097	$self->save;
1523		2098
1524	my $lock = cf::lock_acquire "map_data:" . $self->path;	2099	my $lock = cf::lock_acquire "map_data:$self->{path}";
1525		2100
1526	return if $self->players;	2101	return if $self->players;
1527	return if $self->in_memory != cf::MAP_IN_MEMORY;	2102	return if $self->in_memory != cf::MAP_IN_MEMORY;
1528	return if $self->{deny_save};	2103	return if $self->{deny_save};
1529		2104
		2105	$self->in_memory (cf::MAP_SWAPPED);
		2106
		2107	$self->deactivate;
		2108	$_->clear_links_to ($self) for values %cf::MAP;
1530	$self->clear;	2109	$self->clear;
1531	$self->in_memory (cf::MAP_SWAPPED);
1532	}	2110	}
1533		2111
1534	sub reset_at {	2112	sub reset_at {
1535	my ($self) = @_;	2113	my ($self) = @_;
1536		2114
1537	# TODO: safety, remove and allow resettable per-player maps	2115	# TODO: safety, remove and allow resettable per-player maps
1538	return 1e99 if $self->{path}{user_rel};
1539	return 1e99 if $self->{deny_reset};	2116	return 1e99 if $self->{deny_reset};
1540		2117
1541	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2118	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1542	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2119	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1543		2120
…		…
1548	my ($self) = @_;	2125	my ($self) = @_;
1549		2126
1550	$self->reset_at <= $cf::RUNTIME	2127	$self->reset_at <= $cf::RUNTIME
1551	}	2128	}
1552		2129
1553	sub unlink_save {
1554	my ($self) = @_;
1555
1556	utf8::encode (my $save = $self->{path}->save_path);
1557	aioreq_pri 3; IO::AIO::aio_unlink $save;
1558	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1559	}
1560
1561	sub rename {
1562	my ($self, $new_path) = @_;
1563
1564	$self->unlink_save;
1565
1566	delete $cf::MAP{$self->path};
1567	$self->{path} = new cf::path $new_path;
1568	$self->path ($self->{path}->as_string);
1569	$cf::MAP{$self->path} = $self;
1570
1571	$self->save;
1572	}
1573
1574	sub reset {	2130	sub reset {
1575	my ($self) = @_;	2131	my ($self) = @_;
1576		2132
1577	my $lock = cf::lock_acquire "map_data:" . $self->path;	2133	my $lock = cf::lock_acquire "map_data:$self->{path}";
1578		2134
1579	return if $self->players;	2135	return if $self->players;
1580	return if $self->{path}{user_rel};#d#
1581		2136
1582	warn "resetting map ", $self->path;#d#	2137	warn "resetting map ", $self->path;
		2138
		2139	$self->in_memory (cf::MAP_SWAPPED);
		2140
		2141	# need to save uniques path
		2142	unless ($self->{deny_save}) {
		2143	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2144
		2145	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2146	if $uniq;
		2147	}
1583		2148
1584	delete $cf::MAP{$self->path};	2149	delete $cf::MAP{$self->path};
1585		2150
		2151	$self->deactivate;
1586	$_->clear_links_to ($self) for values %cf::MAP;	2152	$_->clear_links_to ($self) for values %cf::MAP;
		2153	$self->clear;
1587		2154
1588	$self->unlink_save;	2155	$self->unlink_save;
1589	$self->destroy;	2156	$self->destroy;
1590	}	2157	}
1591		2158
1592	my $nuke_counter = "aaaa";	2159	my $nuke_counter = "aaaa";
1593		2160
1594	sub nuke {	2161	sub nuke {
1595	my ($self) = @_;	2162	my ($self) = @_;
1596		2163
		2164	{
		2165	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2166
		2167	delete $cf::MAP{$self->path};
		2168
		2169	$self->unlink_save;
		2170
		2171	bless $self, "cf::map";
		2172	delete $self->{deny_reset};
1597	$self->{deny_save} = 1;	2173	$self->{deny_save} = 1;
1598	$self->reset_timeout (1);	2174	$self->reset_timeout (1);
1599	$self->rename ("{nuke}/" . ($nuke_counter++));	2175	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2176
		2177	$cf::MAP{$self->path} = $self;
		2178	}
		2179
1600	$self->reset; # polite request, might not happen	2180	$self->reset; # polite request, might not happen
1601	}	2181	}
1602		2182
1603	sub customise_for {	2183	=item $maps = cf::map::tmp_maps
1604	my ($map, $ob) = @_;
1605		2184
1606	if ($map->per_player) {	2185	Returns an arrayref with all map paths of currently instantiated and saved
1607	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2186	maps. May block.
		2187
		2188	=cut
		2189
		2190	sub tmp_maps() {
1608	}	2191	[
		2192	map {
		2193	utf8::decode $_;
		2194	/\.map$/
		2195	? normalise $_
		2196	: ()
		2197	} @{ aio_readdir $TMPDIR or [] }
		2198	]
		2199	}
1609		2200
1610	$map	2201	=item $maps = cf::map::random_maps
		2202
		2203	Returns an arrayref with all map paths of currently instantiated and saved
		2204	random maps. May block.
		2205
		2206	=cut
		2207
		2208	sub random_maps() {
		2209	[
		2210	map {
		2211	utf8::decode $_;
		2212	/\.map$/
		2213	? normalise "?random/$_"
		2214	: ()
		2215	} @{ aio_readdir $RANDOMDIR or [] }
		2216	]
1611	}	2217	}
1612		2218
1613	=item cf::map::unique_maps	2219	=item cf::map::unique_maps
1614		2220
1615	Returns an arrayref of cf::path's of all shared maps that have	2221	Returns an arrayref of paths of all shared maps that have
1616	instantiated unique items. May block.	2222	instantiated unique items. May block.
1617		2223
1618	=cut	2224	=cut
1619		2225
1620	sub unique_maps() {	2226	sub unique_maps() {
1621	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2227	[
1622	or return;	2228	map {
1623
1624	my @paths;
1625
1626	for (@$files) {
1627	utf8::decode $_;	2229	utf8::decode $_;
1628	next if /\.pst$/;	2230	/\.map$/
1629	next unless /^$PATH_SEP/o;	2231	? normalise $_
1630		2232	: ()
1631	push @paths, new cf::path $_;	2233	} @{ aio_readdir $UNIQUEDIR or [] }
1632	}	2234	]
1633
1634	\@paths
1635	}	2235	}
1636		2236
1637	package cf;	2237	package cf;
1638		2238
1639	=back	2239	=back
…		…
1657	map { $_, inv_recursive_ $_->inv } @_	2257	map { $_, inv_recursive_ $_->inv } @_
1658	}	2258	}
1659		2259
1660	sub inv_recursive {	2260	sub inv_recursive {
1661	inv_recursive_ inv $_[0]	2261	inv_recursive_ inv $_[0]
		2262	}
		2263
		2264	=item $ref = $ob->ref
		2265
		2266	creates and returns a persistent reference to an objetc that can be stored as a string.
		2267
		2268	=item $ob = cf::object::deref ($refstring)
		2269
		2270	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2271	even if the object actually exists. May block.
		2272
		2273	=cut
		2274
		2275	sub deref {
		2276	my ($ref) = @_;
		2277
		2278	# temporary compatibility#TODO#remove
		2279	$ref =~ s{^<}{player/<};
		2280
		2281	if ($ref =~ m{^player\/(<1\.\d+>)/(.*)$}) {
		2282	my ($uuid, $name) = ($1, $2);
		2283	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2284	or return;
		2285	$pl->ob->uuid eq $uuid
		2286	or return;
		2287
		2288	$pl->ob
		2289	} else {
		2290	warn "$ref: cannot resolve object reference\n";
		2291	undef
		2292	}
1662	}	2293	}
1663		2294
1664	package cf;	2295	package cf;
1665		2296
1666	=back	2297	=back
…		…
1685		2316
1686	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2317	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1687		2318
1688	if ($self->{record_replies}) {	2319	if ($self->{record_replies}) {
1689	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2320	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2321
1690	} else {	2322	} else {
		2323	my $pl = $self->contr;
		2324
		2325	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2326	my $dialog = $pl->{npc_dialog};
		2327	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2328
		2329	} else {
1691	$msg = $npc->name . " says: $msg" if $npc;	2330	$msg = $npc->name . " says: $msg" if $npc;
1692	$self->message ($msg, $flags);	2331	$self->message ($msg, $flags);
		2332	}
1693	}	2333	}
		2334	}
		2335
		2336	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2337
		2338	=cut
		2339
		2340	sub cf::object::send_msg {
		2341	my $pl = shift->contr
		2342	or return;
		2343	$pl->send_msg (@_);
1694	}	2344	}
1695		2345
1696	=item $player_object->may ("access")	2346	=item $player_object->may ("access")
1697		2347
1698	Returns wether the given player is authorized to access resource "access"	2348	Returns wether the given player is authorized to access resource "access"
…		…
1711		2361
1712	=item $player_object->enter_link	2362	=item $player_object->enter_link
1713		2363
1714	Freezes the player and moves him/her to a special map (C<{link}>).	2364	Freezes the player and moves him/her to a special map (C<{link}>).
1715		2365
1716	The player should be reaosnably safe there for short amounts of time. You	2366	The player should be reasonably safe there for short amounts of time. You
1717	I<MUST> call C<leave_link> as soon as possible, though.	2367	I<MUST> call C<leave_link> as soon as possible, though.
1718		2368
		2369	Will never block.
		2370
1719	=item $player_object->leave_link ($map, $x, $y)	2371	=item $player_object->leave_link ($map, $x, $y)
1720		2372
1721	Moves the player out of the specila link map onto the given map. If the	2373	Moves the player out of the special C<{link}> map onto the specified
1722	map is not valid (or omitted), the player will be moved back to the	2374	map. If the map is not valid (or omitted), the player will be moved back
1723	location he/she was before the call to C<enter_link>, or, if that fails,	2375	to the location he/she was before the call to C<enter_link>, or, if that
1724	to the emergency map position.	2376	fails, to the emergency map position.
1725		2377
1726	Might block.	2378	Might block.
1727		2379
1728	=cut	2380	=cut
		2381
		2382	sub link_map {
		2383	unless ($LINK_MAP) {
		2384	$LINK_MAP = cf::map::find "{link}"
		2385	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2386	$LINK_MAP->load;
		2387	}
		2388
		2389	$LINK_MAP
		2390	}
1729		2391
1730	sub cf::object::player::enter_link {	2392	sub cf::object::player::enter_link {
1731	my ($self) = @_;	2393	my ($self) = @_;
1732		2394
1733	$self->deactivate_recursive;	2395	$self->deactivate_recursive;
1734		2396
1735	return if $self->map == $LINK_MAP;	2397	return if UNIVERSAL::isa $self->map, "ext::map_link";
1736		2398
1737	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2399	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1738	if $self->map;	2400	if $self->map && $self->map->{path} ne "{link}";
1739		2401
1740	$self->enter_map ($LINK_MAP, 20, 20);	2402	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1741	}	2403	}
1742		2404
1743	sub cf::object::player::leave_link {	2405	sub cf::object::player::leave_link {
1744	my ($self, $map, $x, $y) = @_;	2406	my ($self, $map, $x, $y) = @_;
		2407
		2408	return unless $self->contr->active;
1745		2409
1746	my $link_pos = delete $self->{_link_pos};	2410	my $link_pos = delete $self->{_link_pos};
1747		2411
1748	unless ($map) {	2412	unless ($map) {
1749	# restore original map position	2413	# restore original map position
…		…
1763	# use -1 or undef as default coordinates, not 0, 0	2427	# use -1 or undef as default coordinates, not 0, 0
1764	($x, $y) = ($map->enter_x, $map->enter_y)	2428	($x, $y) = ($map->enter_x, $map->enter_y)
1765	if $x <=0 && $y <= 0;	2429	if $x <=0 && $y <= 0;
1766		2430
1767	$map->load;	2431	$map->load;
1768	$map->load_diag;	2432	$map->load_neighbours;
1769		2433
1770	return unless $self->contr->active;	2434	return unless $self->contr->active;
1771	$self->activate_recursive;	2435	$self->activate_recursive;
		2436
		2437	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1772	$self->enter_map ($map, $x, $y);	2438	$self->enter_map ($map, $x, $y);
1773	}	2439	}
1774		2440
1775	cf::player->attach (	2441	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1776	on_logout => sub {
1777	my ($pl) = @_;
1778		2442
1779	# abort map switching before logout	2443	Moves the player to the given map-path and coordinates by first freezing
1780	if ($pl->ob->{_link_pos}) {	2444	her, loading and preparing them map, calling the provided $check callback
1781	cf::sync_job {	2445	that has to return the map if sucecssful, and then unfreezes the player on
1782	$pl->ob->leave_link	2446	the new (success) or old (failed) map position. In either case, $done will
1783	};	2447	be called at the end of this process.
1784	}
1785	},
1786	on_login => sub {
1787	my ($pl) = @_;
1788		2448
1789	# try to abort aborted map switching on player login :)
1790	# should happen only on crashes
1791	if ($pl->ob->{_link_pos}) {
1792	$pl->ob->enter_link;
1793	(async {
1794	# we need this sleep as the login has a concurrent enter_exit running
1795	# and this sleep increases chances of the player not ending up in scorn
1796	$pl->ob->reply (undef,
1797	"There was an internal problem at your last logout, "
1798	. "the server will try to bring you to your intended destination in a second.",
1799	cf::NDI_RED);
1800	Coro::Timer::sleep 1;
1801	$pl->ob->leave_link;
1802	})->prio (2);
1803	}
1804	},
1805	);
1806
1807	=item $player_object->goto ($path, $x, $y)
1808
1809	=cut	2449	=cut
		2450
		2451	our $GOTOGEN;
1810		2452
1811	sub cf::object::player::goto {	2453	sub cf::object::player::goto {
1812	my ($self, $path, $x, $y) = @_;	2454	my ($self, $path, $x, $y, $check, $done) = @_;
1813		2455
1814	$path = new cf::path $path;	2456	# do generation counting so two concurrent goto's will be executed in-order
		2457	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1815		2458
1816	$self->enter_link;	2459	$self->enter_link;
1817		2460
1818	(async {	2461	(async {
1819	my $map = cf::map::find $path->as_string;	2462	$Coro::current->{desc} = "player::goto $path $x $y";
		2463
		2464	# *tag paths override both path and x|y
		2465	if ($path =~ /^\*(.*)$/) {
		2466	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2467	my $ob = $obs[rand @obs];
		2468
		2469	# see if we actually can go there
		2470	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2471	$ob = $obs[rand @obs];
		2472	} else {
		2473	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2474	}
		2475	# else put us there anyways for now #d#
		2476
		2477	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2478	} else {
		2479	($path, $x, $y) = (undef, undef, undef);
		2480	}
		2481	}
		2482
		2483	my $map = eval {
		2484	my $map = defined $path ? cf::map::find $path : undef;
		2485
		2486	if ($map) {
1820	$map = $map->customise_for ($self) if $map;	2487	$map = $map->customise_for ($self);
1821		2488	$map = $check->($map) if $check && $map;
1822	# warn "entering ", $map->path, " at ($x, $y)\n"	2489	} else {
1823	# if $map;
1824
1825	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2490	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2491	}
1826		2492
		2493	$map
		2494	};
		2495
		2496	if ($@) {
		2497	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2498	LOG llevError | logBacktrace, Carp::longmess $@;
		2499	}
		2500
		2501	if ($gen == $self->{_goto_generation}) {
		2502	delete $self->{_goto_generation};
1827	$self->leave_link ($map, $x, $y);	2503	$self->leave_link ($map, $x, $y);
		2504	}
		2505
		2506	$done->() if $done;
1828	})->prio (1);	2507	})->prio (1);
1829	}	2508	}
1830		2509
1831	=item $player_object->enter_exit ($exit_object)	2510	=item $player_object->enter_exit ($exit_object)
1832		2511
…		…
1834		2513
1835	sub parse_random_map_params {	2514	sub parse_random_map_params {
1836	my ($spec) = @_;	2515	my ($spec) = @_;
1837		2516
1838	my $rmp = { # defaults	2517	my $rmp = { # defaults
1839	xsize => 10,	2518	xsize => (cf::rndm 15, 40),
1840	ysize => 10,	2519	ysize => (cf::rndm 15, 40),
		2520	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2521	#layout => string,
1841	};	2522	};
1842		2523
1843	for (split /\n/, $spec) {	2524	for (split /\n/, $spec) {
1844	my ($k, $v) = split /\s+/, $_, 2;	2525	my ($k, $v) = split /\s+/, $_, 2;
1845		2526
…		…
1849	$rmp	2530	$rmp
1850	}	2531	}
1851		2532
1852	sub prepare_random_map {	2533	sub prepare_random_map {
1853	my ($exit) = @_;	2534	my ($exit) = @_;
		2535
		2536	my $guard = cf::lock_acquire "exit_prepare:$exit";
1854		2537
1855	# all this does is basically replace the /! path by	2538	# all this does is basically replace the /! path by
1856	# a new random map path (?random/...) with a seed	2539	# a new random map path (?random/...) with a seed
1857	# that depends on the exit object	2540	# that depends on the exit object
1858		2541
1859	my $rmp = parse_random_map_params $exit->msg;	2542	my $rmp = parse_random_map_params $exit->msg;
1860		2543
1861	if ($exit->map) {	2544	if ($exit->map) {
1862	$rmp->{region} = $exit->map->region_name;	2545	$rmp->{region} = $exit->region->name;
1863	$rmp->{origin_map} = $exit->map->path;	2546	$rmp->{origin_map} = $exit->map->path;
1864	$rmp->{origin_x} = $exit->x;	2547	$rmp->{origin_x} = $exit->x;
1865	$rmp->{origin_y} = $exit->y;	2548	$rmp->{origin_y} = $exit->y;
1866	}	2549	}
1867		2550
1868	$rmp->{random_seed} ||= $exit->random_seed;	2551	$rmp->{random_seed} ||= $exit->random_seed;
1869		2552
1870	my $data = cf::to_json $rmp;	2553	my $data = cf::to_json $rmp;
1871	my $md5 = Digest::MD5::md5_hex $data;	2554	my $md5 = Digest::MD5::md5_hex $data;
		2555	my $meta = "$RANDOMDIR/$md5.meta";
1872		2556
1873	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2557	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1874	aio_write $fh, 0, (length $data), $data, 0;	2558	aio_write $fh, 0, (length $data), $data, 0;
		2559	undef $fh;
		2560	aio_rename "$meta~", $meta;
1875		2561
1876	$exit->slaying ("?random/$md5");	2562	$exit->slaying ("?random/$md5");
1877	$exit->msg (undef);	2563	$exit->msg (undef);
1878	}	2564	}
1879	}	2565	}
…		…
1881	sub cf::object::player::enter_exit {	2567	sub cf::object::player::enter_exit {
1882	my ($self, $exit) = @_;	2568	my ($self, $exit) = @_;
1883		2569
1884	return unless $self->type == cf::PLAYER;	2570	return unless $self->type == cf::PLAYER;
1885		2571
		2572	if ($exit->slaying eq "/!") {
		2573	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2574	# the problem is that $exit might not survive long enough
		2575	# so it needs to be done right now, right here
		2576	cf::sync_job { prepare_random_map $exit };
		2577	}
		2578
		2579	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2580	my $hp = $exit->stats->hp;
		2581	my $sp = $exit->stats->sp;
		2582
1886	$self->enter_link;	2583	$self->enter_link;
1887		2584
		2585	# if exit is damned, update players death & WoR home-position
		2586	$self->contr->savebed ($slaying, $hp, $sp)
		2587	if $exit->flag (FLAG_DAMNED);
		2588
1888	(async {	2589	(async {
		2590	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2591
1889	$self->deactivate_recursive; # just to be sure	2592	$self->deactivate_recursive; # just to be sure
1890	unless (eval {	2593	unless (eval {
1891	prepare_random_map $exit	2594	$self->goto ($slaying, $hp, $sp);
1892	if $exit->slaying eq "/!";
1893
1894	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1895	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1896		2595
1897	1;	2596	1;
1898	}) {	2597	}) {
1899	$self->message ("Something went wrong deep within the crossfire server. "	2598	$self->message ("Something went wrong deep within the crossfire server. "
1900	. "I'll try to bring you back to the map you were before. "	2599	. "I'll try to bring you back to the map you were before. "
1901	. "Please report this to the dungeon master!",	2600	. "Please report this to the dungeon master!",
1902	cf::NDI_UNIQUE | cf::NDI_RED);	2601	cf::NDI_UNIQUE | cf::NDI_RED);
1903		2602
1904	warn "ERROR in enter_exit: $@";	2603	warn "ERROR in enter_exit: $@";
1905	$self->leave_link;	2604	$self->leave_link;
1906	}	2605	}
1907	})->prio (1);	2606	})->prio (1);
…		…
1920		2619
1921	sub cf::client::send_drawinfo {	2620	sub cf::client::send_drawinfo {
1922	my ($self, $text, $flags) = @_;	2621	my ($self, $text, $flags) = @_;
1923		2622
1924	utf8::encode $text;	2623	utf8::encode $text;
1925	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2624	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1926	}	2625	}
1927		2626
		2627	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2628
		2629	Send a drawinfo or msg packet to the client, formatting the msg for the
		2630	client if neccessary. C<$type> should be a string identifying the type of
		2631	the message, with C<log> being the default. If C<$color> is negative, suppress
		2632	the message unless the client supports the msg packet.
		2633
		2634	=cut
		2635
		2636	our %CHANNEL = (
		2637	"c/identify" => {
		2638	id => "infobox",
		2639	title => "Identify",
		2640	reply => undef,
		2641	tooltip => "Items recently identified",
		2642	},
		2643	"c/examine" => {
		2644	id => "infobox",
		2645	title => "Examine",
		2646	reply => undef,
		2647	tooltip => "Signs and other items you examined",
		2648	},
		2649	"c/lookat" => {
		2650	id => "infobox",
		2651	title => "Look",
		2652	reply => undef,
		2653	tooltip => "What you saw there",
		2654	},
		2655	);
		2656
		2657	sub cf::client::send_msg {
		2658	my ($self, $channel, $msg, $color, @extra) = @_;
		2659
		2660	$msg = $self->pl->expand_cfpod ($msg);
		2661
		2662	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2663
		2664	# check predefined channels, for the benefit of C
		2665	if ($CHANNEL{$channel}) {
		2666	$channel = $CHANNEL{$channel};
		2667
		2668	$self->ext_msg (channel_info => $channel)
		2669	if $self->can_msg;
		2670
		2671	$channel = $channel->{id};
		2672
		2673	} elsif (ref $channel) {
		2674	# send meta info to client, if not yet sent
		2675	unless (exists $self->{channel}{$channel->{id}}) {
		2676	$self->{channel}{$channel->{id}} = $channel;
		2677	$self->ext_msg (channel_info => $channel)
		2678	if $self->can_msg;
		2679	}
		2680
		2681	$channel = $channel->{id};
		2682	}
		2683
		2684	return unless @extra || length $msg;
		2685
		2686	if ($self->can_msg) {
		2687	# default colour, mask it out
		2688	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2689	if $color & cf::NDI_DEF;
		2690
		2691	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2692	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2693	} else {
		2694	if ($color >= 0) {
		2695	# replace some tags by gcfclient-compatible ones
		2696	for ($msg) {
		2697	1 while
		2698	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2699	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2700	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2701	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2702	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2703	}
		2704
		2705	$color &= cf::NDI_COLOR_MASK;
		2706
		2707	utf8::encode $msg;
		2708
		2709	if (0 && $msg =~ /\[/) {
		2710	# COMMAND/INFO
		2711	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2712	} else {
		2713	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2714	$self->send_packet ("drawinfo $color $msg")
		2715	}
		2716	}
		2717	}
		2718	}
		2719
		2720	=item $client->ext_msg ($type, @msg)
		2721
		2722	Sends an ext event to the client.
		2723
		2724	=cut
		2725
		2726	sub cf::client::ext_msg($$@) {
		2727	my ($self, $type, @msg) = @_;
		2728
		2729	if ($self->extcmd == 2) {
		2730	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2731	} elsif ($self->extcmd == 1) { # TODO: remove
		2732	push @msg, msgtype => "event_$type";
		2733	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2734	}
		2735	}
		2736
		2737	=item $client->ext_reply ($msgid, @msg)
		2738
		2739	Sends an ext reply to the client.
		2740
		2741	=cut
		2742
		2743	sub cf::client::ext_reply($$@) {
		2744	my ($self, $id, @msg) = @_;
		2745
		2746	if ($self->extcmd == 2) {
		2747	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2748	} elsif ($self->extcmd == 1) {
		2749	#TODO: version 1, remove
		2750	unshift @msg, msgtype => "reply", msgid => $id;
		2751	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2752	}
		2753	}
1928		2754
1929	=item $success = $client->query ($flags, "text", \&cb)	2755	=item $success = $client->query ($flags, "text", \&cb)
1930		2756
1931	Queues a query to the client, calling the given callback with	2757	Queues a query to the client, calling the given callback with
1932	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2758	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1933	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2759	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1934		2760
1935	Queries can fail, so check the return code. Or don't, as queries will become	2761	Queries can fail, so check the return code. Or don't, as queries will
1936	reliable at some point in the future.	2762	become reliable at some point in the future.
1937		2763
1938	=cut	2764	=cut
1939		2765
1940	sub cf::client::query {	2766	sub cf::client::query {
1941	my ($self, $flags, $text, $cb) = @_;	2767	my ($self, $flags, $text, $cb) = @_;
…		…
1949	utf8::encode $text;	2775	utf8::encode $text;
1950	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2776	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1951		2777
1952	$self->send_packet ($self->{query_queue}[0][0])	2778	$self->send_packet ($self->{query_queue}[0][0])
1953	if @{ $self->{query_queue} } == 1;	2779	if @{ $self->{query_queue} } == 1;
		2780
		2781	1
1954	}	2782	}
1955		2783
1956	cf::client->attach (	2784	cf::client->attach (
		2785	on_connect => sub {
		2786	my ($ns) = @_;
		2787
		2788	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2789	},
1957	on_reply => sub {	2790	on_reply => sub {
1958	my ($ns, $msg) = @_;	2791	my ($ns, $msg) = @_;
1959		2792
1960	# this weird shuffling is so that direct followup queries	2793	# this weird shuffling is so that direct followup queries
1961	# get handled first	2794	# get handled first
1962	my $queue = delete $ns->{query_queue}	2795	my $queue = delete $ns->{query_queue}
1963	or return; # be conservative, not sure how that can happen, but we saw a crash here	2796	or return; # be conservative, not sure how that can happen, but we saw a crash here
1964		2797
1965	(shift @$queue)->[1]->($msg);	2798	(shift @$queue)->[1]->($msg);
		2799	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1966		2800
1967	push @{ $ns->{query_queue} }, @$queue;	2801	push @{ $ns->{query_queue} }, @$queue;
1968		2802
1969	if (@{ $ns->{query_queue} } == @$queue) {	2803	if (@{ $ns->{query_queue} } == @$queue) {
1970	if (@$queue) {	2804	if (@$queue) {
…		…
1972	} else {	2806	} else {
1973	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2807	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1974	}	2808	}
1975	}	2809	}
1976	},	2810	},
		2811	on_exticmd => sub {
		2812	my ($ns, $buf) = @_;
		2813
		2814	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2815
		2816	if (ref $msg) {
		2817	my ($type, $reply, @payload) =
		2818	"ARRAY" eq ref $msg
		2819	? @$msg
		2820	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2821
		2822	my @reply;
		2823
		2824	if (my $cb = $EXTICMD{$type}) {
		2825	@reply = $cb->($ns, @payload);
		2826	}
		2827
		2828	$ns->ext_reply ($reply, @reply)
		2829	if $reply;
		2830
		2831	} else {
		2832	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2833	}
		2834
		2835	cf::override;
		2836	},
1977	);	2837	);
1978		2838
1979	=item $client->async (\&cb)	2839	=item $client->async (\&cb)
1980		2840
1981	Create a new coroutine, running the specified callback. The coroutine will	2841	Create a new coroutine, running the specified callback. The coroutine will
…		…
2022	our $safe = new Safe "safe";	2882	our $safe = new Safe "safe";
2023	our $safe_hole = new Safe::Hole;	2883	our $safe_hole = new Safe::Hole;
2024		2884
2025	$SIG{FPE} = 'IGNORE';	2885	$SIG{FPE} = 'IGNORE';
2026		2886
2027	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2887	$safe->permit_only (Opcode::opset qw(
		2888	:base_core :base_mem :base_orig :base_math
		2889	grepstart grepwhile mapstart mapwhile
		2890	sort time
		2891	));
2028		2892
2029	# here we export the classes and methods available to script code	2893	# here we export the classes and methods available to script code
2030		2894
2031	=pod	2895	=pod
2032		2896
2033	The following fucntions and emthods are available within a safe environment:	2897	The following functions and methods are available within a safe environment:
2034		2898
2035	cf::object contr pay_amount pay_player map	2899	cf::object
		2900	contr pay_amount pay_player map x y force_find force_add
		2901	insert remove name archname title slaying race decrease_ob_nr
		2902
2036	cf::object::player player	2903	cf::object::player
2037	cf::player peaceful	2904	player
2038	cf::map trigger	2905
		2906	cf::player
		2907	peaceful
		2908
		2909	cf::map
		2910	trigger
2039		2911
2040	=cut	2912	=cut
2041		2913
2042	for (	2914	for (
2043	["cf::object" => qw(contr pay_amount pay_player map)],	2915	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2916	insert remove inv name archname title slaying race
		2917	decrease_ob_nr)],
2044	["cf::object::player" => qw(player)],	2918	["cf::object::player" => qw(player)],
2045	["cf::player" => qw(peaceful)],	2919	["cf::player" => qw(peaceful)],
2046	["cf::map" => qw(trigger)],	2920	["cf::map" => qw(trigger)],
2047	) {	2921	) {
2048	no strict 'refs';	2922	no strict 'refs';
…		…
2119	=back	2993	=back
2120		2994
2121	=cut	2995	=cut
2122		2996
2123	#############################################################################	2997	#############################################################################
		2998	# the server's init and main functions
2124		2999
2125	=head2 EXTENSION DATABASE SUPPORT	3000	sub load_facedata($) {
		3001	my ($path) = @_;
2126		3002
2127	Crossfire maintains a very simple database for extension use. It can	3003	# HACK to clear player env face cache, we need some signal framework
2128	currently store anything that can be serialised using Storable, which	3004	# for this (global event?)
2129	excludes objects.	3005	%ext::player_env::MUSIC_FACE_CACHE = ();
2130		3006
2131	The parameter C<$family> should best start with the name of the extension	3007	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2132	using it, it should be unique.
2133		3008
2134	=over 4	3009	warn "loading facedata from $path\n";
2135		3010
2136	=item $hashref = cf::db_get $family	3011	my $facedata;
		3012	0 < aio_load $path, $facedata
		3013	or die "$path: $!";
2137		3014
2138	Return a hashref for use by the extension C<$family>, which can be	3015	$facedata = Coro::Storable::thaw $facedata;
2139	modified. After modifications, you have to call C<cf::db_dirty> or
2140	C<cf::db_sync>.
2141		3016
2142	=item $value = cf::db_get $family => $key	3017	$facedata->{version} == 2
		3018	or cf::cleanup "$path: version mismatch, cannot proceed.";
2143		3019
2144	Returns a single value from the database	3020	# patch in the exptable
2145		3021	$facedata->{resource}{"res/exp_table"} = {
2146	=item cf::db_put $family => $hashref	3022	type => FT_RSRC,
2147		3023	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2148	Stores the given family hashref into the database. Updates are delayed, if
2149	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2150
2151	=item cf::db_put $family => $key => $value
2152
2153	Stores the given C<$value> in the family hash. Updates are delayed, if you
2154	want the data to be synced to disk immediately, use C<cf::db_sync>.
2155
2156	=item cf::db_dirty
2157
2158	Marks the database as dirty, to be updated at a later time.
2159
2160	=item cf::db_sync
2161
2162	Immediately write the database to disk I<if it is dirty>.
2163
2164	=cut
2165
2166	our $DB;
2167
2168	{
2169	my $path = cf::localdir . "/database.pst";
2170
2171	sub db_load() {
2172	$DB = stat $path ? Storable::retrieve $path : { };
2173	}
2174
2175	my $pid;
2176
2177	sub db_save() {
2178	waitpid $pid, 0 if $pid;
2179	if (0 == ($pid = fork)) {
2180	$DB->{_meta}{version} = 1;
2181	Storable::nstore $DB, "$path~";
2182	rename "$path~", $path;
2183	cf::_exit 0 if defined $pid;
2184	}
2185	}
2186
2187	my $dirty;
2188
2189	sub db_sync() {
2190	db_save if $dirty;
2191	undef $dirty;
2192	}
2193
2194	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2195	db_sync;
2196	});	3024	};
		3025	cf::cede_to_tick;
2197		3026
2198	sub db_dirty() {
2199	$dirty = 1;
2200	$idle->start;
2201	}	3027	{
		3028	my $faces = $facedata->{faceinfo};
2202		3029
2203	sub db_get($;$) {	3030	while (my ($face, $info) = each %$faces) {
2204	@_ >= 2	3031	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2205	? $DB->{$_[0]}{$_[1]}	3032	cf::face::set_visibility $idx, $info->{visibility};
2206	: ($DB->{$_[0]} ||= { })	3033	cf::face::set_magicmap $idx, $info->{magicmap};
2207	}	3034	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3035	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2208		3036
2209	sub db_put($$;$) {	3037	cf::cede_to_tick;
2210	if (@_ >= 3) {
2211	$DB->{$_[0]}{$_[1]} = $_[2];
2212	} else {
2213	$DB->{$_[0]} = $_[1];
2214	}
2215	db_dirty;
2216	}
2217
2218	cf::global->attach (
2219	prio => 10000,
2220	on_cleanup => sub {
2221	db_sync;
2222	},	3038	}
2223	);
2224	}
2225		3039
2226	#############################################################################	3040	while (my ($face, $info) = each %$faces) {
2227	# the server's main()	3041	next unless $info->{smooth};
		3042	my $idx = cf::face::find $face
		3043	or next;
		3044	if (my $smooth = cf::face::find $info->{smooth}) {
		3045	cf::face::set_smooth $idx, $smooth;
		3046	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3047	} else {
		3048	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3049	}
2228		3050
2229	sub cfg_load {	3051	cf::cede_to_tick;
		3052	}
		3053	}
		3054
		3055	{
		3056	my $anims = $facedata->{animinfo};
		3057
		3058	while (my ($anim, $info) = each %$anims) {
		3059	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3060	cf::cede_to_tick;
		3061	}
		3062
		3063	cf::anim::invalidate_all; # d'oh
		3064	}
		3065
		3066	{
		3067	# TODO: for gcfclient pleasure, we should give resources
		3068	# that gcfclient doesn't grok a >10000 face index.
		3069	my $res = $facedata->{resource};
		3070
		3071	my $soundconf = delete $res->{"res/sound.conf"};
		3072
		3073	while (my ($name, $info) = each %$res) {
		3074	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3075	my $data;
		3076
		3077	if ($info->{type} & 1) {
		3078	# prepend meta info
		3079
		3080	my $meta = $enc->encode ({
		3081	name => $name,
		3082	%{ $info->{meta} || {} },
		3083	});
		3084
		3085	$data = pack "(w/a*)*", $meta, $info->{data};
		3086	} else {
		3087	$data = $info->{data};
		3088	}
		3089
		3090	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3091	cf::face::set_type $idx, $info->{type};
		3092
		3093	cf::cede_to_tick;
		3094	}
		3095
		3096	if ($soundconf) {
		3097	$soundconf = $enc->decode (delete $soundconf->{data});
		3098
		3099	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3100	my $sound = $soundconf->{compat}[$_]
		3101	or next;
		3102
		3103	my $face = cf::face::find "sound/$sound->[1]";
		3104	cf::sound::set $sound->[0] => $face;
		3105	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3106	}
		3107
		3108	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3109	my $face = cf::face::find "sound/$v";
		3110	cf::sound::set $k => $face;
		3111	}
		3112	}
		3113	}
		3114
		3115	1
		3116	}
		3117
		3118	register_exticmd fx_want => sub {
		3119	my ($ns, $want) = @_;
		3120
		3121	while (my ($k, $v) = each %$want) {
		3122	$ns->fx_want ($k, $v);
		3123	}
		3124	};
		3125
		3126	sub reload_regions {
		3127	# HACK to clear player env face cache, we need some signal framework
		3128	# for this (global event?)
		3129	%ext::player_env::MUSIC_FACE_CACHE = ();
		3130
		3131	load_resource_file "$MAPDIR/regions"
		3132	or die "unable to load regions file\n";
		3133
		3134	for (cf::region::list) {
		3135	$_->{match} = qr/$_->{match}/
		3136	if exists $_->{match};
		3137	}
		3138	}
		3139
		3140	sub reload_facedata {
		3141	load_facedata "$DATADIR/facedata"
		3142	or die "unable to load facedata\n";
		3143	}
		3144
		3145	sub reload_archetypes {
		3146	load_resource_file "$DATADIR/archetypes"
		3147	or die "unable to load archetypes\n";
		3148	#d# NEED to laod twice to resolve forward references
		3149	# this really needs to be done in an extra post-pass
		3150	# (which needs to be synchronous, so solve it differently)
		3151	load_resource_file "$DATADIR/archetypes"
		3152	or die "unable to load archetypes\n";
		3153	}
		3154
		3155	sub reload_treasures {
		3156	load_resource_file "$DATADIR/treasures"
		3157	or die "unable to load treasurelists\n";
		3158	}
		3159
		3160	sub reload_resources {
		3161	warn "reloading resource files...\n";
		3162
		3163	reload_regions;
		3164	reload_facedata;
		3165	#reload_archetypes;#d#
		3166	reload_archetypes;
		3167	reload_treasures;
		3168
		3169	warn "finished reloading resource files\n";
		3170	}
		3171
		3172	sub init {
		3173	reload_resources;
		3174	}
		3175
		3176	sub reload_config {
2230	open my $fh, "<:utf8", cf::confdir . "/config"	3177	open my $fh, "<:utf8", "$CONFDIR/config"
2231	or return;	3178	or return;
2232		3179
2233	local $/;	3180	local $/;
2234	*CFG = YAML::Syck::Load <$fh>;	3181	*CFG = YAML::Syck::Load <$fh>;
2235		3182
…		…
2249		3196
2250	sub main {	3197	sub main {
2251	# we must not ever block the main coroutine	3198	# we must not ever block the main coroutine
2252	local $Coro::idle = sub {	3199	local $Coro::idle = sub {
2253	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3200	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3201	(async {
		3202	$Coro::current->{desc} = "IDLE BUG HANDLER";
2254	async { Event::one_event };	3203	Event::one_event;
		3204	})->prio (Coro::PRIO_MAX);
2255	};	3205	};
2256		3206
2257	cfg_load;	3207	reload_config;
2258	db_load;	3208	db_init;
2259	load_extensions;	3209	load_extensions;
		3210
		3211	$TICK_WATCHER->start;
2260	Event::loop;	3212	Event::loop;
2261	}	3213	}
2262		3214
2263	#############################################################################	3215	#############################################################################
2264	# initialisation and cleanup	3216	# initialisation and cleanup
2265		3217
2266	# install some emergency cleanup handlers	3218	# install some emergency cleanup handlers
2267	BEGIN {	3219	BEGIN {
2268	for my $signal (qw(INT HUP TERM)) {	3220	for my $signal (qw(INT HUP TERM)) {
2269	Event->signal (	3221	Event->signal (
		3222	reentrant => 0,
2270	data => WF_AUTOCANCEL,	3223	data => WF_AUTOCANCEL,
2271	signal => $signal,	3224	signal => $signal,
		3225	prio => 0,
2272	cb => sub {	3226	cb => sub {
2273	cf::cleanup "SIG$signal";	3227	cf::cleanup "SIG$signal";
2274	},	3228	},
2275	);	3229	);
2276	}	3230	}
2277	}	3231	}
2278		3232
		3233	sub write_runtime {
		3234	my $runtime = "$LOCALDIR/runtime";
		3235
		3236	# first touch the runtime file to show we are still running:
		3237	# the fsync below can take a very very long time.
		3238
		3239	IO::AIO::aio_utime $runtime, undef, undef;
		3240
		3241	my $guard = cf::lock_acquire "write_runtime";
		3242
		3243	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3244	or return;
		3245
		3246	my $value = $cf::RUNTIME + 90 + 10;
		3247	# 10 is the runtime save interval, for a monotonic clock
		3248	# 60 allows for the watchdog to kill the server.
		3249
		3250	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3251	and return;
		3252
		3253	# always fsync - this file is important
		3254	aio_fsync $fh
		3255	and return;
		3256
		3257	# touch it again to show we are up-to-date
		3258	aio_utime $fh, undef, undef;
		3259
		3260	close $fh
		3261	or return;
		3262
		3263	aio_rename "$runtime~", $runtime
		3264	and return;
		3265
		3266	warn "runtime file written.\n";
		3267
		3268	1
		3269	}
		3270
2279	sub emergency_save() {	3271	sub emergency_save() {
2280	my $freeze_guard = cf::freeze_mainloop;	3272	my $freeze_guard = cf::freeze_mainloop;
2281		3273
2282	warn "enter emergency perl save\n";	3274	warn "enter emergency perl save\n";
2283		3275
2284	cf::sync_job {	3276	cf::sync_job {
2285	# use a peculiar iteration method to avoid tripping on perl	3277	# use a peculiar iteration method to avoid tripping on perl
2286	# refcount bugs in for. also avoids problems with players	3278	# refcount bugs in for. also avoids problems with players
2287	# and maps saved/Destroyed asynchronously.	3279	# and maps saved/destroyed asynchronously.
2288	warn "begin emergency player save\n";	3280	warn "begin emergency player save\n";
2289	for my $login (keys %cf::PLAYER) {	3281	for my $login (keys %cf::PLAYER) {
2290	my $pl = $cf::PLAYER{$login} or next;	3282	my $pl = $cf::PLAYER{$login} or next;
2291	$pl->valid or next;	3283	$pl->valid or next;
2292	$pl->save;	3284	$pl->save;
…		…
2298	my $map = $cf::MAP{$path} or next;	3290	my $map = $cf::MAP{$path} or next;
2299	$map->valid or next;	3291	$map->valid or next;
2300	$map->save;	3292	$map->save;
2301	}	3293	}
2302	warn "end emergency map save\n";	3294	warn "end emergency map save\n";
		3295
		3296	warn "begin emergency database checkpoint\n";
		3297	BDB::db_env_txn_checkpoint $DB_ENV;
		3298	warn "end emergency database checkpoint\n";
2303	};	3299	};
2304		3300
2305	warn "leave emergency perl save\n";	3301	warn "leave emergency perl save\n";
2306	}	3302	}
2307		3303
		3304	sub post_cleanup {
		3305	my ($make_core) = @_;
		3306
		3307	warn Carp::longmess "post_cleanup backtrace"
		3308	if $make_core;
		3309	}
		3310
2308	sub reload() {	3311	sub do_reload_perl() {
2309	# can/must only be called in main	3312	# can/must only be called in main
2310	if ($Coro::current != $Coro::main) {	3313	if ($Coro::current != $Coro::main) {
2311	warn "can only reload from main coroutine\n";	3314	warn "can only reload from main coroutine";
2312	return;	3315	return;
2313	}	3316	}
2314		3317
2315	warn "reloading...";	3318	warn "reloading...";
2316		3319
2317	warn "freezing server";	3320	warn "entering sync_job";
2318	my $guard = freeze_mainloop;	3321
		3322	cf::sync_job {
		3323	cf::write_runtime; # external watchdog should not bark
2319	cf::emergency_save;	3324	cf::emergency_save;
		3325	cf::write_runtime; # external watchdog should not bark
2320		3326
2321	warn "sync database to disk";	3327	warn "syncing database to disk";
2322	cf::db_sync;	3328	BDB::db_env_txn_checkpoint $DB_ENV;
2323	IO::AIO::flush;
2324		3329
2325	eval {
2326	# if anything goes wrong in here, we should simply crash as we already saved	3330	# if anything goes wrong in here, we should simply crash as we already saved
2327		3331
2328	warn "cancel all watchers";	3332	warn "cancelling all WF_AUTOCANCEL watchers";
2329	for (Event::all_watchers) {	3333	for (Event::all_watchers) {
2330	$_->cancel if $_->data & WF_AUTOCANCEL;	3334	$_->cancel if $_->data & WF_AUTOCANCEL;
2331	}	3335	}
2332		3336
		3337	warn "flushing outstanding aio requests";
		3338	for (;;) {
		3339	BDB::flush;
		3340	IO::AIO::flush;
		3341	Coro::cede;
		3342	last unless IO::AIO::nreqs || BDB::nreqs;
		3343	warn "iterate...";
		3344	}
		3345
		3346	++$RELOAD;
		3347
2333	warn "cancel all extension coros";	3348	warn "cancelling all extension coros";
2334	$_->cancel for values %EXT_CORO;	3349	$_->cancel for values %EXT_CORO;
2335	%EXT_CORO = ();	3350	%EXT_CORO = ();
2336		3351
2337	warn "remove commands";	3352	warn "removing commands";
2338	%COMMAND = ();	3353	%COMMAND = ();
2339		3354
2340	warn "remove ext commands";	3355	warn "removing ext/exti commands";
2341	%EXTCMD = ();	3356	%EXTCMD = ();
		3357	%EXTICMD = ();
2342		3358
2343	warn "unload/nuke all extensions";	3359	warn "unloading/nuking all extensions";
2344	for my $pkg (@EXTS) {	3360	for my $pkg (@EXTS) {
2345	warn "... unloading $pkg";	3361	warn "... unloading $pkg";
2346		3362
2347	if (my $cb = $pkg->can ("unload")) {	3363	if (my $cb = $pkg->can ("unload")) {
2348	eval {	3364	eval {
…		…
2353		3369
2354	warn "... nuking $pkg";	3370	warn "... nuking $pkg";
2355	Symbol::delete_package $pkg;	3371	Symbol::delete_package $pkg;
2356	}	3372	}
2357		3373
2358	warn "unload all perl modules loaded from $LIBDIR";	3374	warn "unloading all perl modules loaded from $LIBDIR";
2359	while (my ($k, $v) = each %INC) {	3375	while (my ($k, $v) = each %INC) {
2360	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3376	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2361		3377
2362	warn "removing <$k>";	3378	warn "... unloading $k";
2363	delete $INC{$k};	3379	delete $INC{$k};
2364		3380
2365	$k =~ s/\.pm$//;	3381	$k =~ s/\.pm$//;
2366	$k =~ s/\//::/g;	3382	$k =~ s/\//::/g;
2367		3383
…		…
2370	}	3386	}
2371		3387
2372	Symbol::delete_package $k;	3388	Symbol::delete_package $k;
2373	}	3389	}
2374		3390
2375	warn "get rid of safe::, as good as possible";	3391	warn "getting rid of safe::, as good as possible";
2376	Symbol::delete_package "safe::$_"	3392	Symbol::delete_package "safe::$_"
2377	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3393	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2378		3394
2379	warn "unload cf.pm \"a bit\"";	3395	warn "unloading cf.pm \"a bit\"";
2380	delete $INC{"cf.pm"};	3396	delete $INC{"cf.pm"};
		3397	delete $INC{"cf/pod.pm"};
2381		3398
2382	# don't, removes xs symbols, too,	3399	# don't, removes xs symbols, too,
2383	# and global variables created in xs	3400	# and global variables created in xs
2384	#Symbol::delete_package __PACKAGE__;	3401	#Symbol::delete_package __PACKAGE__;
2385		3402
		3403	warn "unload completed, starting to reload now";
		3404
2386	warn "reloading cf.pm";	3405	warn "reloading cf.pm";
2387	require cf;	3406	require cf;
2388	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3407	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2389		3408
2390	warn "load config and database again";	3409	warn "loading config and database again";
2391	cf::cfg_load;	3410	cf::reload_config;
2392	cf::db_load;
2393		3411
2394	warn "load extensions";	3412	warn "loading extensions";
2395	cf::load_extensions;	3413	cf::load_extensions;
2396		3414
2397	warn "reattach attachments to objects/players";	3415	warn "reattaching attachments to objects/players";
2398	_global_reattach;	3416	_global_reattach; # objects, sockets
2399	warn "reattach attachments to maps";	3417	warn "reattaching attachments to maps";
2400	reattach $_ for values %MAP;	3418	reattach $_ for values %MAP;
2401	};	3419	warn "reattaching attachments to players";
		3420	reattach $_ for values %PLAYER;
2402		3421
2403	if ($@) {	3422	warn "leaving sync_job";
		3423
		3424	1
		3425	} or do {
2404	warn $@;	3426	warn $@;
2405	warn "error while reloading, exiting.";	3427	warn "error while reloading, exiting.";
2406	exit 1;	3428	exit 1;
2407	}	3429	};
2408		3430
2409	warn "reloaded";	3431	warn "reloaded";
2410	};	3432	};
2411		3433
2412	#############################################################################	3434	our $RELOAD_WATCHER; # used only during reload
2413		3435
2414	unless ($LINK_MAP) {	3436	sub reload_perl() {
2415	$LINK_MAP = cf::map::new;	3437	# doing reload synchronously and two reloads happen back-to-back,
		3438	# coro crashes during coro_state_free->destroy here.
2416		3439
2417	$LINK_MAP->width (41);	3440	$RELOAD_WATCHER ||= Event->timer (
2418	$LINK_MAP->height (41);	3441	reentrant => 0,
2419	$LINK_MAP->alloc;
2420	$LINK_MAP->path ("{link}");
2421	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2422	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2423
2424	# dirty hack because... archetypes are not yet loaded
2425	Event->timer (
2426	after => 10,	3442	after => 0,
		3443	data => WF_AUTOCANCEL,
2427	cb => sub {	3444	cb => sub {
2428	$_[0]->w->cancel;	3445	do_reload_perl;
2429		3446	undef $RELOAD_WATCHER;
2430	# provide some exits "home"
2431	my $exit = cf::object::new "exit";
2432
2433	$exit->slaying ($EMERGENCY_POSITION->[0]);
2434	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2435	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2436
2437	$LINK_MAP->insert ($exit->clone, 19, 19);
2438	$LINK_MAP->insert ($exit->clone, 19, 20);
2439	$LINK_MAP->insert ($exit->clone, 19, 21);
2440	$LINK_MAP->insert ($exit->clone, 20, 19);
2441	$LINK_MAP->insert ($exit->clone, 20, 21);
2442	$LINK_MAP->insert ($exit->clone, 21, 19);
2443	$LINK_MAP->insert ($exit->clone, 21, 20);
2444	$LINK_MAP->insert ($exit->clone, 21, 21);
2445
2446	$exit->destroy;
2447	});	3447	},
2448		3448	);
2449	$LINK_MAP->{deny_save} = 1;
2450	$LINK_MAP->{deny_reset} = 1;
2451
2452	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2453	}	3449	}
2454		3450
2455	register_command "reload" => sub {	3451	register_command "reload" => sub {
2456	my ($who, $arg) = @_;	3452	my ($who, $arg) = @_;
2457		3453
2458	if ($who->flag (FLAG_WIZ)) {	3454	if ($who->flag (FLAG_WIZ)) {
2459	$who->message ("start of reload.");
2460	reload;
2461	$who->message ("end of reload.");	3455	$who->message ("reloading server.");
		3456	async {
		3457	$Coro::current->{desc} = "perl_reload";
		3458	reload_perl;
		3459	};
2462	}	3460	}
2463	};	3461	};
2464		3462
2465	unshift @INC, $LIBDIR;	3463	unshift @INC, $LIBDIR;
		3464
		3465	my $bug_warning = 0;
		3466
		3467	our @WAIT_FOR_TICK;
		3468	our @WAIT_FOR_TICK_BEGIN;
		3469
		3470	sub wait_for_tick {
		3471	return unless $TICK_WATCHER->is_active;
		3472	return if $Coro::current == $Coro::main;
		3473
		3474	my $signal = new Coro::Signal;
		3475	push @WAIT_FOR_TICK, $signal;
		3476	$signal->wait;
		3477	}
		3478
		3479	sub wait_for_tick_begin {
		3480	return unless $TICK_WATCHER->is_active;
		3481	return if $Coro::current == $Coro::main;
		3482
		3483	my $signal = new Coro::Signal;
		3484	push @WAIT_FOR_TICK_BEGIN, $signal;
		3485	$signal->wait;
		3486	}
2466		3487
2467	$TICK_WATCHER = Event->timer (	3488	$TICK_WATCHER = Event->timer (
2468	reentrant => 0,	3489	reentrant => 0,
		3490	parked => 1,
2469	prio => 0,	3491	prio => 0,
2470	at => $NEXT_TICK || $TICK,	3492	at => $NEXT_TICK || $TICK,
2471	data => WF_AUTOCANCEL,	3493	data => WF_AUTOCANCEL,
2472	cb => sub {	3494	cb => sub {
		3495	if ($Coro::current != $Coro::main) {
		3496	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3497	unless ++$bug_warning > 10;
		3498	return;
		3499	}
		3500
		3501	$NOW = $tick_start = Event::time;
		3502
2473	cf::server_tick; # one server iteration	3503	cf::server_tick; # one server iteration
		3504
2474	$RUNTIME += $TICK;	3505	$RUNTIME += $TICK;
2475	$NEXT_TICK += $TICK;	3506	$NEXT_TICK += $TICK;
2476		3507
2477	$WAIT_FOR_TICK->broadcast;	3508	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2478	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3509	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3510	Coro::async_pool {
		3511	$Coro::current->{desc} = "runtime saver";
		3512	write_runtime
		3513	or warn "ERROR: unable to write runtime file: $!";
		3514	};
		3515	}
		3516
		3517	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3518	$sig->send;
		3519	}
		3520	while (my $sig = shift @WAIT_FOR_TICK) {
		3521	$sig->send;
		3522	}
		3523
		3524	$NOW = Event::time;
2479		3525
2480	# if we are delayed by four ticks or more, skip them all	3526	# if we are delayed by four ticks or more, skip them all
2481	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3527	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2482		3528
2483	$TICK_WATCHER->at ($NEXT_TICK);	3529	$TICK_WATCHER->at ($NEXT_TICK);
2484	$TICK_WATCHER->start;	3530	$TICK_WATCHER->start;
		3531
		3532	$LOAD = ($NOW - $tick_start) / $TICK;
		3533	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3534
		3535	_post_tick;
2485	},	3536	},
2486	);	3537	);
2487		3538
		3539	{
		3540	BDB::min_parallel 8;
2488	IO::AIO::max_poll_time $TICK * 0.2;	3541	BDB::max_poll_time $TICK * 0.1;
2489		3542	$BDB_POLL_WATCHER = Event->io (
2490	Event->io (	3543	reentrant => 0,
2491	fd => IO::AIO::poll_fileno,	3544	fd => BDB::poll_fileno,
2492	poll => 'r',	3545	poll => 'r',
2493	prio => 5,	3546	prio => 0,
2494	data => WF_AUTOCANCEL,
2495	cb => \&IO::AIO::poll_cb,
2496	);
2497
2498	Event->timer (
2499	data => WF_AUTOCANCEL,	3547	data => WF_AUTOCANCEL,
		3548	cb => \&BDB::poll_cb,
		3549	);
		3550
		3551	BDB::set_sync_prepare {
		3552	my $status;
		3553	my $current = $Coro::current;
		3554	(
		3555	sub {
		3556	$status = $!;
		3557	$current->ready; undef $current;
		3558	},
		3559	sub {
		3560	Coro::schedule while defined $current;
		3561	$! = $status;
		3562	},
		3563	)
		3564	};
		3565
		3566	unless ($DB_ENV) {
		3567	$DB_ENV = BDB::db_env_create;
		3568	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3569	| BDB::LOG_AUTOREMOVE, 1);
		3570	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3571	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3572
		3573	cf::sync_job {
		3574	eval {
		3575	BDB::db_env_open
		3576	$DB_ENV,
		3577	$BDBDIR,
		3578	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3579	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3580	0666;
		3581
		3582	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3583	};
		3584
		3585	cf::cleanup "db_env_open(db): $@" if $@;
		3586	};
		3587	}
		3588
		3589	$BDB_DEADLOCK_WATCHER = Event->timer (
2500	after => 0,	3590	after => 3,
2501	interval => 10,	3591	interval => 1,
		3592	hard => 1,
		3593	prio => 0,
		3594	data => WF_AUTOCANCEL,
2502	cb => sub {	3595	cb => sub {
2503	(Coro::unblock_sub {	3596	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2504	write_runtime	3597	},
2505	or warn "ERROR: unable to write runtime file: $!";	3598	);
		3599	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3600	after => 11,
		3601	interval => 60,
		3602	hard => 1,
		3603	prio => 0,
		3604	data => WF_AUTOCANCEL,
		3605	cb => sub {
		3606	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3607	},
		3608	);
		3609	$BDB_TRICKLE_WATCHER = Event->timer (
		3610	after => 5,
		3611	interval => 10,
		3612	hard => 1,
		3613	prio => 0,
		3614	data => WF_AUTOCANCEL,
		3615	cb => sub {
		3616	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3617	},
		3618	);
		3619	}
		3620
		3621	{
		3622	IO::AIO::min_parallel 8;
		3623
		3624	undef $Coro::AIO::WATCHER;
		3625	IO::AIO::max_poll_time $TICK * 0.1;
		3626	$AIO_POLL_WATCHER = Event->io (
		3627	reentrant => 0,
		3628	data => WF_AUTOCANCEL,
		3629	fd => IO::AIO::poll_fileno,
		3630	poll => 'r',
		3631	prio => 0,
		3632	cb => \&IO::AIO::poll_cb,
		3633	);
		3634	}
		3635
		3636	my $_log_backtrace;
		3637
		3638	sub _log_backtrace {
		3639	my ($msg, @addr) = @_;
		3640
		3641	$msg =~ s/\n//;
		3642
		3643	# limit the # of concurrent backtraces
		3644	if ($_log_backtrace < 2) {
		3645	++$_log_backtrace;
		3646	async {
		3647	$Coro::current->{desc} = "abt $msg";
		3648
		3649	my @bt = fork_call {
		3650	@addr = map { sprintf "%x", $_ } @addr;
		3651	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3652	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3653	or die "addr2line: $!";
		3654
		3655	my @funcs;
		3656	my @res = <$fh>;
		3657	chomp for @res;
		3658	while (@res) {
		3659	my ($func, $line) = splice @res, 0, 2, ();
		3660	push @funcs, "[$func] $line";
		3661	}
		3662
		3663	@funcs
		3664	};
		3665
		3666	LOG llevInfo, "[ABT] $msg\n";
		3667	LOG llevInfo, "[ABT] $_\n" for @bt;
		3668	--$_log_backtrace;
2506	})->();	3669	};
		3670	} else {
		3671	LOG llevInfo, "[ABT] $msg\n";
		3672	LOG llevInfo, "[ABT] [suppressed]\n";
2507	},	3673	}
2508	);	3674	}
		3675
		3676	# load additional modules
		3677	use cf::pod;
2509		3678
2510	END { cf::emergency_save }	3679	END { cf::emergency_save }
2511		3680
2512	1	3681	1
2513		3682

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