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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 1.379 by root, Thu Oct 4 23:59:07 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
		432	LOG llevError | logBacktrace, Carp::longmess "sync job";#d#
		433
296	# TODO: use suspend/resume instead	434	# TODO: use suspend/resume instead
297	# (but this is cancel-safe)	435	# (but this is cancel-safe)
298	my $freeze_guard = freeze_mainloop;	436	my $freeze_guard = freeze_mainloop;
299		437
300	my $busy = 1;	438	my $busy = 1;
301	my @res;	439	my @res;
302		440
303	(async {	441	(async {
		442	$Coro::current->desc ("sync job coro");
304	@res = eval { $job->() };	443	@res = eval { $job->() };
305	warn $@ if $@;	444	warn $@ if $@;
306	undef $busy;	445	undef $busy;
307	})->prio (Coro::PRIO_MAX);	446	})->prio (Coro::PRIO_MAX);
308		447
309	while ($busy) {	448	while ($busy) {
310	Coro::cede or Event::one_event;	449	Coro::cede or Event::one_event;
311	}	450	}
		451
		452	$time = Event::time - $time;
		453
		454	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		455	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		456
		457	$tick_start += $time; # do not account sync jobs to server load
312		458
313	wantarray ? @res : $res[0]	459	wantarray ? @res : $res[0]
314	} else {	460	} else {
315	# we are in another coroutine, how wonderful, everything just works	461	# we are in another coroutine, how wonderful, everything just works
316		462
…		…
336	$EXT_CORO{$coro+0} = $coro;	482	$EXT_CORO{$coro+0} = $coro;
337		483
338	$coro	484	$coro
339	}	485	}
340		486
341	sub write_runtime {	487	=item fork_call { }, $args
342	my $runtime = cf::localdir . "/runtime";
343		488
344	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	489	Executes the given code block with the given arguments in a seperate
345	or return;	490	process, returning the results. Everything must be serialisable with
		491	Coro::Storable. May, of course, block. Note that the executed sub may
		492	never block itself or use any form of Event handling.
346		493
347	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	494	=cut
348	(aio_write $fh, 0, (length $value), $value, 0) <= 0
349	and return;
350		495
351	aio_fsync $fh	496	sub fork_call(&@) {
352	and return;	497	my ($cb, @args) = @_;
353		498
354	close $fh	499	# we seemingly have to make a local copy of the whole thing,
355	or return;	500	# otherwise perl prematurely frees the stuff :/
		501	# TODO: investigate and fix (likely this will be rather laborious)
356		502
357	aio_rename "$runtime~", $runtime	503	my @res = Coro::Util::fork_eval {
358	and return;	504	reset_signals;
		505	&$cb
		506	}, @args;
359		507
		508	wantarray ? @res : $res[-1]
		509	}
		510
		511	=item $value = cf::db_get $family => $key
		512
		513	Returns a single value from the environment database.
		514
		515	=item cf::db_put $family => $key => $value
		516
		517	Stores the given C<$value> in the family. It can currently store binary
		518	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		519
		520	=item $db = cf::db_table "name"
		521
		522	Create and/or open a new database table. The string must not be "db" and must be unique
		523	within each server.
		524
		525	=cut
		526
		527	sub db_table($) {
		528	my ($name) = @_;
		529	my $db = BDB::db_create $DB_ENV;
		530
		531	eval {
		532	$db->set_flags (BDB::CHKSUM);
		533
		534	utf8::encode $name;
		535	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		536	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		537	cf::cleanup "db_open(db): $!" if $!;
		538	};
		539	cf::cleanup "db_open(db): $@" if $@;
		540
		541	$db
		542	}
		543
		544	our $DB;
		545
		546	sub db_init {
		547	cf::sync_job {
		548	$DB ||= db_table "db";
		549	};
		550	}
		551
		552	sub db_get($$) {
		553	my $key = "$_[0]/$_[1]";
		554
		555	cf::sync_job {
		556	BDB::db_get $DB, undef, $key, my $data;
		557
		558	$! ? ()
		559	: $data
360	1	560	}
		561	}
		562
		563	sub db_put($$$) {
		564	BDB::dbreq_pri 4;
		565	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		566	}
		567
		568	=item cf::cache $id => [$paths...], $processversion => $process
		569
		570	Generic caching function that returns the value of the resource $id,
		571	caching and regenerating as required.
		572
		573	This function can block.
		574
		575	=cut
		576
		577	sub cache {
		578	my ($id, $src, $processversion, $process) = @_;
		579
		580	my $meta =
		581	join "\x00",
		582	$processversion,
		583	map {
		584	aio_stat $_
		585	and Carp::croak "$_: $!";
		586
		587	($_, (stat _)[7,9])
		588	} @$src;
		589
		590	my $dbmeta = db_get cache => "$id/meta";
		591	if ($dbmeta ne $meta) {
		592	# changed, we may need to process
		593
		594	my @data;
		595	my $md5;
		596
		597	for (0 .. $#$src) {
		598	0 <= aio_load $src->[$_], $data[$_]
		599	or Carp::croak "$src->[$_]: $!";
		600	}
		601
		602	# if processing is expensive, check
		603	# checksum first
		604	if (1) {
		605	$md5 =
		606	join "\x00",
		607	$processversion,
		608	map {
		609	cf::cede_to_tick;
		610	($src->[$_], Digest::MD5::md5_hex $data[$_])
		611	} 0.. $#$src;
		612
		613
		614	my $dbmd5 = db_get cache => "$id/md5";
		615	if ($dbmd5 eq $md5) {
		616	db_put cache => "$id/meta", $meta;
		617
		618	return db_get cache => "$id/data";
		619	}
		620	}
		621
		622	my $t1 = Time::HiRes::time;
		623	my $data = $process->(\@data);
		624	my $t2 = Time::HiRes::time;
		625
		626	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		627
		628	db_put cache => "$id/data", $data;
		629	db_put cache => "$id/md5" , $md5;
		630	db_put cache => "$id/meta", $meta;
		631
		632	return $data;
		633	}
		634
		635	db_get cache => "$id/data"
		636	}
		637
		638	=item cf::datalog type => key => value, ...
		639
		640	Log a datalog packet of the given type with the given key-value pairs.
		641
		642	=cut
		643
		644	sub datalog($@) {
		645	my ($type, %kv) = @_;
		646	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
361	}	647	}
362		648
363	=back	649	=back
364		650
365	=cut	651	=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		652
523	#############################################################################	653	#############################################################################
524		654
525	=head2 ATTACHABLE OBJECTS	655	=head2 ATTACHABLE OBJECTS
526		656
…		…
528	attach callbacks/event handlers (a collection of which is called an "attachment")	658	attach callbacks/event handlers (a collection of which is called an "attachment")
529	to it. All such attachable objects support the following methods.	659	to it. All such attachable objects support the following methods.
530		660
531	In the following description, CLASS can be any of C<global>, C<object>	661	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	662	C<player>, C<client> or C<map> (i.e. the attachable objects in
533	crossfire+).	663	Crossfire TRT).
534		664
535	=over 4	665	=over 4
536		666
537	=item $attachable->attach ($attachment, key => $value...)	667	=item $attachable->attach ($attachment, key => $value...)
538		668
…		…
652	our @CB_TYPE = (); # registry for type (cf-object class) based events	782	our @CB_TYPE = (); # registry for type (cf-object class) based events
653	our @CB_MAP = ();	783	our @CB_MAP = ();
654		784
655	my %attachment;	785	my %attachment;
656		786
		787	sub cf::attachable::thawer_merge {
		788	# simply override everything except _meta
		789	local $_[0]{_meta};
		790	%{$_[0]} = %{$_[1]};
		791	}
		792
657	sub _attach_cb($$$$) {	793	sub _attach_cb($$$$) {
658	my ($registry, $event, $prio, $cb) = @_;	794	my ($registry, $event, $prio, $cb) = @_;
659		795
660	use sort 'stable';	796	use sort 'stable';
661		797
…		…
695	$registry = $CB_TYPE[$object_type] ||= [];	831	$registry = $CB_TYPE[$object_type] ||= [];
696		832
697	} elsif ($type eq "subtype") {	833	} elsif ($type eq "subtype") {
698	defined $object_type or Carp::croak "subtype specified without type";	834	defined $object_type or Carp::croak "subtype specified without type";
699	my $object_subtype = shift @arg;	835	my $object_subtype = shift @arg;
700	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	836	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
701		837
702	} elsif ($type eq "package") {	838	} elsif ($type eq "package") {
703	my $pkg = shift @arg;	839	my $pkg = shift @arg;
704		840
705	while (my ($name, $id) = each %cb_id) {	841	while (my ($name, $id) = each %cb_id) {
…		…
734	_attach $registry, $klass, @attach;	870	_attach $registry, $klass, @attach;
735	}	871	}
736		872
737	$obj->{$name} = \%arg;	873	$obj->{$name} = \%arg;
738	} else {	874	} else {
739	warn "object uses attachment '$name' that is not available, postponing.\n";	875	warn "object uses attachment '$name' which is not available, postponing.\n";
740	}	876	}
741		877
742	$obj->{_attachment}{$name} = undef;	878	$obj->{_attachment}{$name} = undef;
743	}	879	}
744		880
…		…
746	if (ref $_[0]) {	882	if (ref $_[0]) {
747	_object_attach @_;	883	_object_attach @_;
748	} else {	884	} else {
749	_attach shift->_attach_registry, @_;	885	_attach shift->_attach_registry, @_;
750	}	886	}
		887	_recalc_want;
751	};	888	};
752		889
753	# all those should be optimised	890	# all those should be optimised
754	sub cf::attachable::detach {	891	sub cf::attachable::detach {
755	my ($obj, $name) = @_;	892	my ($obj, $name) = @_;
…		…
758	delete $obj->{_attachment}{$name};	895	delete $obj->{_attachment}{$name};
759	reattach ($obj);	896	reattach ($obj);
760	} else {	897	} else {
761	Carp::croak "cannot, currently, detach class attachments";	898	Carp::croak "cannot, currently, detach class attachments";
762	}	899	}
		900	_recalc_want;
763	};	901	};
764		902
765	sub cf::attachable::attached {	903	sub cf::attachable::attached {
766	my ($obj, $name) = @_;	904	my ($obj, $name) = @_;
767		905
…		…
782	";	920	";
783	die if $@;	921	die if $@;
784	}	922	}
785		923
786	our $override;	924	our $override;
787	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	925	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
788		926
789	sub override {	927	sub override {
790	$override = 1;	928	$override = 1;
791	@invoke_results = ();	929	@INVOKE_RESULTS = (@_);
792	}	930	}
793		931
794	sub do_invoke {	932	sub do_invoke {
795	my $event = shift;	933	my $event = shift;
796	my $callbacks = shift;	934	my $callbacks = shift;
797		935
798	@invoke_results = ();	936	@INVOKE_RESULTS = ();
799		937
800	local $override;	938	local $override;
801		939
802	for (@$callbacks) {	940	for (@$callbacks) {
803	eval { &{$_->[1]} };	941	eval { &{$_->[1]} };
…		…
820		958
821	Generate an object-specific event with the given arguments.	959	Generate an object-specific event with the given arguments.
822		960
823	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	961	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	962	removed in future versions), and there is no public API to access override
825	results (if you must, access C<@cf::invoke_results> directly).	963	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
826		964
827	=back	965	=back
828		966
829	=cut	967	=cut
830		968
831	#############################################################################	969	#############################################################################
832	# object support	970	# object support
		971	#
		972
		973	sub _can_merge {
		974	my ($ob1, $ob2) = @_;
		975
		976	local $Storable::canonical = 1;
		977	my $fob1 = Storable::freeze $ob1;
		978	my $fob2 = Storable::freeze $ob2;
		979
		980	$fob1 eq $fob2
		981	}
833		982
834	sub reattach {	983	sub reattach {
835	# basically do the same as instantiate, without calling instantiate	984	# basically do the same as instantiate, without calling instantiate
836	my ($obj) = @_;	985	my ($obj) = @_;
		986
		987	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
837		988
838	my $registry = $obj->registry;	989	my $registry = $obj->registry;
839		990
840	@$registry = ();	991	@$registry = ();
841		992
…		…
882	sub object_freezer_save {	1033	sub object_freezer_save {
883	my ($filename, $rdata, $objs) = @_;	1034	my ($filename, $rdata, $objs) = @_;
884		1035
885	sync_job {	1036	sync_job {
886	if (length $$rdata) {	1037	if (length $$rdata) {
		1038	utf8::decode (my $decname = $filename);
887	warn sprintf "saving %s (%d,%d)\n",	1039	warn sprintf "saving %s (%d,%d)\n",
888	$filename, length $$rdata, scalar @$objs;	1040	$decname, length $$rdata, scalar @$objs;
889		1041
890	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1042	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
891	chmod SAVE_MODE, $fh;	1043	chmod SAVE_MODE, $fh;
892	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1044	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
893	aio_fsync $fh;	1045	aio_fsync $fh if $cf::USE_FSYNC;
894	close $fh;	1046	close $fh;
895		1047
896	if (@$objs) {	1048	if (@$objs) {
897	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1049	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
898	chmod SAVE_MODE, $fh;	1050	chmod SAVE_MODE, $fh;
899	my $data = Storable::nfreeze { version => 1, objs => $objs };	1051	my $data = Storable::nfreeze { version => 1, objs => $objs };
900	aio_write $fh, 0, (length $data), $data, 0;	1052	aio_write $fh, 0, (length $data), $data, 0;
901	aio_fsync $fh;	1053	aio_fsync $fh if $cf::USE_FSYNC;
902	close $fh;	1054	close $fh;
903	aio_rename "$filename.pst~", "$filename.pst";	1055	aio_rename "$filename.pst~", "$filename.pst";
904	}	1056	}
905	} else {	1057	} else {
906	aio_unlink "$filename.pst";	1058	aio_unlink "$filename.pst";
…		…
912	}	1064	}
913	} else {	1065	} else {
914	aio_unlink $filename;	1066	aio_unlink $filename;
915	aio_unlink "$filename.pst";	1067	aio_unlink "$filename.pst";
916	}	1068	}
917	}	1069	};
918	}	1070	}
919		1071
920	sub object_freezer_as_string {	1072	sub object_freezer_as_string {
921	my ($rdata, $objs) = @_;	1073	my ($rdata, $objs) = @_;
922		1074
…		…
934	or return;	1086	or return;
935		1087
936	unless (aio_stat "$filename.pst") {	1088	unless (aio_stat "$filename.pst") {
937	(aio_load "$filename.pst", $av) >= 0	1089	(aio_load "$filename.pst", $av) >= 0
938	or return;	1090	or return;
		1091
939	$av = eval { (Storable::thaw $av)->{objs} };	1092	$av = eval { (Storable::thaw $av)->{objs} };
940	}	1093	}
941		1094
		1095	utf8::decode (my $decname = $filename);
942	warn sprintf "loading %s (%d)\n",	1096	warn sprintf "loading %s (%d,%d)\n",
943	$filename, length $data, scalar @{$av || []};#d#	1097	$decname, length $data, scalar @{$av || []};
		1098
944	return ($data, $av);	1099	($data, $av)
945	}	1100	}
		1101
		1102	=head2 COMMAND CALLBACKS
		1103
		1104	=over 4
		1105
		1106	=cut
946		1107
947	#############################################################################	1108	#############################################################################
948	# command handling &c	1109	# command handling &c
949		1110
950	=item cf::register_command $name => \&callback($ob,$args);	1111	=item cf::register_command $name => \&callback($ob,$args);
…		…
963	push @{ $COMMAND{$name} }, [$caller, $cb];	1124	push @{ $COMMAND{$name} }, [$caller, $cb];
964	}	1125	}
965		1126
966	=item cf::register_extcmd $name => \&callback($pl,$packet);	1127	=item cf::register_extcmd $name => \&callback($pl,$packet);
967		1128
968	Register a callbackf ro execution when the client sends an extcmd packet.	1129	Register a callback for execution when the client sends an (synchronous)
		1130	extcmd packet. Ext commands will be processed in the order they are
		1131	received by the server, like other user commands. The first argument is
		1132	the logged-in player. Ext commands can only be processed after a player
		1133	has logged in successfully.
969		1134
970	If the callback returns something, it is sent back as if reply was being	1135	If the callback returns something, it is sent back as if reply was being
971	called.	1136	called.
972		1137
		1138	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1139
		1140	Register a callback for execution when the client sends an (asynchronous)
		1141	exticmd packet. Exti commands are processed by the server as soon as they
		1142	are received, i.e. out of order w.r.t. other commands. The first argument
		1143	is a client socket. Exti commands can be received anytime, even before
		1144	log-in.
		1145
		1146	If the callback returns something, it is sent back as if reply was being
		1147	called.
		1148
973	=cut	1149	=cut
974		1150
975	sub register_extcmd {	1151	sub register_extcmd {
976	my ($name, $cb) = @_;	1152	my ($name, $cb) = @_;
977		1153
978	$EXTCMD{$name} = $cb;	1154	$EXTCMD{$name} = $cb;
		1155	}
		1156
		1157	sub register_exticmd {
		1158	my ($name, $cb) = @_;
		1159
		1160	$EXTICMD{$name} = $cb;
979	}	1161	}
980		1162
981	cf::player->attach (	1163	cf::player->attach (
982	on_command => sub {	1164	on_command => sub {
983	my ($pl, $name, $params) = @_;	1165	my ($pl, $name, $params) = @_;
…		…
992	cf::override;	1174	cf::override;
993	},	1175	},
994	on_extcmd => sub {	1176	on_extcmd => sub {
995	my ($pl, $buf) = @_;	1177	my ($pl, $buf) = @_;
996		1178
997	my $msg = eval { from_json $buf };	1179	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
998		1180
999	if (ref $msg) {	1181	if (ref $msg) {
		1182	my ($type, $reply, @payload) =
		1183	"ARRAY" eq ref $msg
		1184	? @$msg
		1185	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1186
		1187	my @reply;
		1188
1000	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1189	if (my $cb = $EXTCMD{$type}) {
1001	if (my %reply = $cb->($pl, $msg)) {	1190	@reply = $cb->($pl, @payload);
1002	$pl->ext_reply ($msg->{msgid}, %reply);
1003	}
1004	}	1191	}
		1192
		1193	$pl->ext_reply ($reply, @reply)
		1194	if $reply;
		1195
1005	} else {	1196	} else {
1006	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1197	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
1007	}	1198	}
1008		1199
1009	cf::override;	1200	cf::override;
1010	},	1201	},
1011	);	1202	);
1012		1203
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 {	1204	sub load_extensions {
		1205	cf::sync_job {
		1206	my %todo;
		1207
1041	for my $ext (<$LIBDIR/*.ext>) {	1208	for my $path (<$LIBDIR/*.ext>) {
1042	next unless -r $ext;	1209	next unless -r $path;
1043	eval {	1210
1044	load_extension $ext;	1211	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1212	my $base = $1;
		1213	my $pkg = $1;
		1214	$pkg =~ s/[^[:word:]]/_/g;
		1215	$pkg = "ext::$pkg";
		1216
		1217	open my $fh, "<:utf8", $path
		1218	or die "$path: $!";
		1219
		1220	my $source = do { local $/; <$fh> };
		1221
		1222	my %ext = (
		1223	path => $path,
		1224	base => $base,
		1225	pkg => $pkg,
		1226	);
		1227
		1228	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1229	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1230
		1231	$ext{source} =
		1232	"package $pkg; use strict; use utf8;\n"
		1233	. "#line 1 \"$path\"\n{\n"
		1234	. $source
		1235	. "\n};\n1";
		1236
		1237	$todo{$base} = \%ext;
		1238	}
		1239
		1240	my %done;
		1241	while (%todo) {
		1242	my $progress;
		1243
		1244	while (my ($k, $v) = each %todo) {
		1245	for (split /,\s*/, $v->{meta}{depends}) {
		1246	goto skip
		1247	unless exists $done{$_};
		1248	}
		1249
		1250	warn "... loading '$k' into '$v->{pkg}'\n";
		1251
		1252	unless (eval $v->{source}) {
		1253	my $msg = $@ ? "$v->{path}: $@\n"
		1254	: "$v->{base}: extension inactive.\n";
		1255
		1256	if (exists $v->{meta}{mandatory}) {
		1257	warn $msg;
		1258	warn "mandatory extension failed to load, exiting.\n";
		1259	exit 1;
		1260	}
		1261
		1262	warn $msg;
		1263	}
		1264
		1265	$done{$k} = delete $todo{$k};
		1266	push @EXTS, $v->{pkg};
		1267	$progress = 1;
1045	1	1268	}
1046	} or warn "$ext not loaded: $@";	1269
		1270	skip:
		1271	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1272	unless $progress;
		1273	}
1047	}	1274	};
1048	}	1275	}
1049		1276
1050	#############################################################################	1277	#############################################################################
1051	# load/save/clean perl data associated with a map
1052		1278
1053	*cf::mapsupport::on_clean = sub {	1279	=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		1280
1066	=head2 CORE EXTENSIONS	1281	=head2 CORE EXTENSIONS
1067		1282
1068	Functions and methods that extend core crossfire objects.	1283	Functions and methods that extend core crossfire objects.
1069		1284
…		…
1075		1290
1076	=head3 cf::player	1291	=head3 cf::player
1077		1292
1078	=over 4	1293	=over 4
1079		1294
		1295	=item cf::player::num_playing
		1296
		1297	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1298
		1299	=cut
		1300
		1301	sub num_playing {
		1302	scalar grep
		1303	$_->ob->map
		1304	&& !$_->hidden
		1305	&& !$_->ob->flag (cf::FLAG_WIZ),
		1306	cf::player::list
		1307	}
		1308
1080	=item cf::player::find $login	1309	=item cf::player::find $login
1081		1310
1082	Returns the given player object, loading it if necessary (might block).	1311	Returns the given player object, loading it if necessary (might block).
1083		1312
1084	=cut	1313	=cut
1085		1314
1086	sub playerdir($) {	1315	sub playerdir($) {
1087	cf::localdir	1316	"$PLAYERDIR/"
1088	. "/"
1089	. cf::playerdir
1090	. "/"
1091	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1317	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1092	}	1318	}
1093		1319
1094	sub path($) {	1320	sub path($) {
1095	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1321	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1096		1322
1097	(playerdir $login) . "/$login.pl"	1323	(playerdir $login) . "/playerdata"
1098	}	1324	}
1099		1325
1100	sub find_active($) {	1326	sub find_active($) {
1101	$cf::PLAYER{$_[0]}	1327	$cf::PLAYER{$_[0]}
1102	and $cf::PLAYER{$_[0]}->active	1328	and $cf::PLAYER{$_[0]}->active
…		…
1105		1331
1106	sub exists($) {	1332	sub exists($) {
1107	my ($login) = @_;	1333	my ($login) = @_;
1108		1334
1109	$cf::PLAYER{$login}	1335	$cf::PLAYER{$login}
1110	or cf::sync_job { !aio_stat $login }	1336	or cf::sync_job { !aio_stat path $login }
1111	}	1337	}
1112		1338
1113	sub find($) {	1339	sub find($) {
1114	return $cf::PLAYER{$_[0]} || do {	1340	return $cf::PLAYER{$_[0]} || do {
1115	my $login = $_[0];	1341	my $login = $_[0];
1116		1342
1117	my $guard = cf::lock_acquire "user_find:$login";	1343	my $guard = cf::lock_acquire "user_find:$login";
1118		1344
1119	$cf::PLAYER{$_[0]} || do {	1345	$cf::PLAYER{$_[0]} || do {
1120	my $pl = load_pl path $login	1346	# rename old playerfiles to new ones
		1347	#TODO: remove when no longer required
		1348	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1349	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1350	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1351	aio_unlink +(playerdir $login) . "/$login.pl";
		1352
		1353	my $f = new_from_file cf::object::thawer path $login
1121	or return;	1354	or return;
		1355
		1356	my $pl = cf::player::load_pl $f
		1357	or return;
		1358	local $cf::PLAYER_LOADING{$login} = $pl;
		1359	$f->resolve_delayed_derefs;
1122	$cf::PLAYER{$login} = $pl	1360	$cf::PLAYER{$login} = $pl
1123	}	1361	}
1124	}	1362	}
1125	}	1363	}
1126		1364
…		…
1136		1374
1137	aio_mkdir playerdir $pl, 0770;	1375	aio_mkdir playerdir $pl, 0770;
1138	$pl->{last_save} = $cf::RUNTIME;	1376	$pl->{last_save} = $cf::RUNTIME;
1139		1377
1140	$pl->save_pl ($path);	1378	$pl->save_pl ($path);
1141	Coro::cede;	1379	cf::cede_to_tick;
1142	}	1380	}
1143		1381
1144	sub new($) {	1382	sub new($) {
1145	my ($login) = @_;	1383	my ($login) = @_;
1146		1384
…		…
1152	$cf::PLAYER{$login} = $self;	1390	$cf::PLAYER{$login} = $self;
1153		1391
1154	$self	1392	$self
1155	}	1393	}
1156		1394
		1395	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1396
		1397	=cut
		1398
		1399	sub send_msg {
		1400	my $ns = shift->ns
		1401	or return;
		1402	$ns->send_msg (@_);
		1403	}
		1404
1157	=item $pl->quit_character	1405	=item $pl->quit_character
1158		1406
1159	Nukes the player without looking back. If logged in, the connection will	1407	Nukes the player without looking back. If logged in, the connection will
1160	be destroyed. May block for a long time.	1408	be destroyed. May block for a long time.
1161		1409
1162	=cut	1410	=cut
1163		1411
1164	sub quit_character {	1412	sub quit_character {
1165	my ($pl) = @_;	1413	my ($pl) = @_;
		1414
		1415	my $name = $pl->ob->name;
1166		1416
1167	$pl->{deny_save} = 1;	1417	$pl->{deny_save} = 1;
1168	$pl->password ("*"); # this should lock out the player until we nuked the dir	1418	$pl->password ("*"); # this should lock out the player until we nuked the dir
1169		1419
1170	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1420	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1175	my $path = playerdir $pl;	1425	my $path = playerdir $pl;
1176	my $temp = "$path~$cf::RUNTIME~deleting~";	1426	my $temp = "$path~$cf::RUNTIME~deleting~";
1177	aio_rename $path, $temp;	1427	aio_rename $path, $temp;
1178	delete $cf::PLAYER{$pl->ob->name};	1428	delete $cf::PLAYER{$pl->ob->name};
1179	$pl->destroy;	1429	$pl->destroy;
		1430
		1431	my $prefix = qr<^~\Q$name\E/>;
		1432
		1433	# nuke player maps
		1434	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1435
1180	IO::AIO::aio_rmtree $temp;	1436	IO::AIO::aio_rmtree $temp;
		1437	}
		1438
		1439	=item $pl->kick
		1440
		1441	Kicks a player out of the game. This destroys the connection.
		1442
		1443	=cut
		1444
		1445	sub kick {
		1446	my ($pl, $kicker) = @_;
		1447
		1448	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1449	$pl->killer ("kicked");
		1450	$pl->ns->destroy;
1181	}	1451	}
1182		1452
1183	=item cf::player::list_logins	1453	=item cf::player::list_logins
1184		1454
1185	Returns am arrayref of all valid playernames in the system, can take a	1455	Returns am arrayref of all valid playernames in the system, can take a
1186	while and may block, so not sync_job-capable, ever.	1456	while and may block, so not sync_job-capable, ever.
1187		1457
1188	=cut	1458	=cut
1189		1459
1190	sub list_logins {	1460	sub list_logins {
1191	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1461	my $dirs = aio_readdir $PLAYERDIR
1192	or return [];	1462	or return [];
1193		1463
1194	my @logins;	1464	my @logins;
1195		1465
1196	for my $login (@$dirs) {	1466	for my $login (@$dirs) {
		1467	my $path = path $login;
		1468
		1469	# a .pst is a dead give-away for a valid player
		1470	unless (-e "$path.pst") {
1197	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1471	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1198	aio_read $fh, 0, 512, my $buf, 0 or next;	1472	aio_read $fh, 0, 512, my $buf, 0 or next;
1199	$buf !~ /^password -------------$/m or next; # official not-valid tag	1473	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1474	}
1200		1475
1201	utf8::decode $login;	1476	utf8::decode $login;
1202	push @logins, $login;	1477	push @logins, $login;
1203	}	1478	}
1204		1479
1205	\@logins	1480	\@logins
1206	}	1481	}
1207		1482
1208	=item $player->maps	1483	=item $player->maps
1209		1484
1210	Returns an arrayref of cf::path's of all maps that are private for this	1485	Returns an arrayref of map paths that are private for this
1211	player. May block.	1486	player. May block.
1212		1487
1213	=cut	1488	=cut
1214		1489
1215	sub maps($) {	1490	sub maps($) {
1216	my ($pl) = @_;	1491	my ($pl) = @_;
		1492
		1493	$pl = ref $pl ? $pl->ob->name : $pl;
1217		1494
1218	my $files = aio_readdir playerdir $pl	1495	my $files = aio_readdir playerdir $pl
1219	or return;	1496	or return;
1220		1497
1221	my @paths;	1498	my @paths;
…		…
1223	for (@$files) {	1500	for (@$files) {
1224	utf8::decode $_;	1501	utf8::decode $_;
1225	next if /\.(?:pl|pst)$/;	1502	next if /\.(?:pl|pst)$/;
1226	next unless /^$PATH_SEP/o;	1503	next unless /^$PATH_SEP/o;
1227		1504
1228	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1505	push @paths, cf::map::normalise "~$pl/$_";
1229	}	1506	}
1230		1507
1231	\@paths	1508	\@paths
1232	}	1509	}
1233		1510
		1511	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1512
		1513	Expand crossfire pod fragments into protocol xml.
		1514
		1515	=cut
		1516
		1517	sub expand_cfpod {
		1518	((my $self), (local $_)) = @_;
		1519
		1520	# escape & and <
		1521	s/&/&amp;/g;
		1522	s/(?<![BIUGHT])</&lt;/g;
		1523
		1524	# this is buggy, it needs to properly take care of nested <'s
		1525
		1526	1 while
		1527	# replace B<>, I<>, U<> etc.
		1528	s/B<([^\>]*)>/<b>$1<\/b>/
		1529	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1530	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1531	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1532	# replace G<male|female> tags
		1533	|| s{G<([^>|]*)\|([^>]*)>}{
		1534	$self->gender ? $2 : $1
		1535	}ge
		1536	# replace H<hint text>
		1537	|| s{H<([^\>]*)>}
		1538	{
		1539	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1540	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1541	"")
		1542	[$self->{hintmode}]
		1543	}ge;
		1544
		1545	# create single paragraphs (very hackish)
		1546	s/(?<=\S)\n(?=\w)/ /g;
		1547
		1548	# compress some whitespace
		1549	s/\s+\n/\n/g; # ws line-ends
		1550	s/\n\n+/\n/g; # double lines
		1551	s/^\n+//; # beginning lines
		1552	s/\n+$//; # ending lines
		1553
		1554	$_
		1555	}
		1556
		1557	sub hintmode {
		1558	$_[0]{hintmode} = $_[1] if @_ > 1;
		1559	$_[0]{hintmode}
		1560	}
		1561
1234	=item $player->ext_reply ($msgid, $msgtype, %msg)	1562	=item $player->ext_reply ($msgid, @msg)
1235		1563
1236	Sends an ext reply to the player.	1564	Sends an ext reply to the player.
1237		1565
1238	=cut	1566	=cut
1239		1567
1240	sub ext_reply($$$%) {	1568	sub ext_reply($$@) {
1241	my ($self, $id, %msg) = @_;	1569	my ($self, $id, @msg) = @_;
1242		1570
1243	$msg{msgid} = $id;	1571	$self->ns->ext_reply ($id, @msg)
1244
1245	$self->send ("ext " . cf::to_json \%msg);
1246	}	1572	}
1247		1573
1248	package cf;	1574	=item $player->ext_msg ($type, @msg)
		1575
		1576	Sends an ext event to the client.
		1577
		1578	=cut
		1579
		1580	sub ext_msg($$@) {
		1581	my ($self, $type, @msg) = @_;
		1582
		1583	$self->ns->ext_msg ($type, @msg);
		1584	}
		1585
		1586	=head3 cf::region
		1587
		1588	=over 4
		1589
		1590	=cut
		1591
		1592	package cf::region;
		1593
		1594	=item cf::region::find_by_path $path
		1595
		1596	Tries to decuce the likely region for a map knowing only its path.
		1597
		1598	=cut
		1599
		1600	sub find_by_path($) {
		1601	my ($path) = @_;
		1602
		1603	my ($match, $specificity);
		1604
		1605	for my $region (list) {
		1606	if ($region->{match} && $path =~ $region->{match}) {
		1607	($match, $specificity) = ($region, $region->specificity)
		1608	if $region->specificity > $specificity;
		1609	}
		1610	}
		1611
		1612	$match
		1613	}
1249		1614
1250	=back	1615	=back
1251
1252		1616
1253	=head3 cf::map	1617	=head3 cf::map
1254		1618
1255	=over 4	1619	=over 4
1256		1620
…		…
1259	package cf::map;	1623	package cf::map;
1260		1624
1261	use Fcntl;	1625	use Fcntl;
1262	use Coro::AIO;	1626	use Coro::AIO;
1263		1627
		1628	use overload
		1629	'""' => \&as_string,
		1630	fallback => 1;
		1631
1264	our $MAX_RESET = 3600;	1632	our $MAX_RESET = 3600;
1265	our $DEFAULT_RESET = 3000;	1633	our $DEFAULT_RESET = 3000;
1266		1634
1267	sub generate_random_map {	1635	sub generate_random_map {
1268	my ($path, $rmp) = @_;	1636	my ($self, $rmp) = @_;
1269
1270	# mit "rum" bekleckern, nicht	1637	# mit "rum" bekleckern, nicht
1271	cf::map::_create_random_map (	1638	$self->_create_random_map (
1272	$path,
1273	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1639	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1274	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1640	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1275	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1641	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1276	$rmp->{exit_on_final_map},	1642	$rmp->{exit_on_final_map},
1277	$rmp->{xsize}, $rmp->{ysize},	1643	$rmp->{xsize}, $rmp->{ysize},
…		…
1282	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1648	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1283	(cf::region::find $rmp->{region}), $rmp->{custom}	1649	(cf::region::find $rmp->{region}), $rmp->{custom}
1284	)	1650	)
1285	}	1651	}
1286		1652
		1653	=item cf::map->register ($regex, $prio)
		1654
		1655	Register a handler for the map path matching the given regex at the
		1656	givne priority (higher is better, built-in handlers have priority 0, the
		1657	default).
		1658
		1659	=cut
		1660
		1661	sub register {
		1662	my (undef, $regex, $prio) = @_;
		1663	my $pkg = caller;
		1664
		1665	no strict;
		1666	push @{"$pkg\::ISA"}, __PACKAGE__;
		1667
		1668	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1669	}
		1670
		1671	# also paths starting with '/'
		1672	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1673
		1674	sub thawer_merge {
		1675	my ($self, $merge) = @_;
		1676
		1677	# we have to keep some variables in memory intact
		1678	local $self->{path};
		1679	local $self->{load_path};
		1680
		1681	$self->SUPER::thawer_merge ($merge);
		1682	}
		1683
		1684	sub normalise {
		1685	my ($path, $base) = @_;
		1686
		1687	$path = "$path"; # make sure its a string
		1688
		1689	$path =~ s/\.map$//;
		1690
		1691	# map plan:
		1692	#
		1693	# /! non-realised random map exit (special hack!)
		1694	# {... are special paths that are not being touched
		1695	# ?xxx/... are special absolute paths
		1696	# ?random/... random maps
		1697	# /... normal maps
		1698	# ~user/... per-player map of a specific user
		1699
		1700	$path =~ s/$PATH_SEP/\//go;
		1701
		1702	# treat it as relative path if it starts with
		1703	# something that looks reasonable
		1704	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1705	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1706
		1707	$base =~ s{[^/]+/?$}{};
		1708	$path = "$base/$path";
		1709	}
		1710
		1711	for ($path) {
		1712	redo if s{//}{/};
		1713	redo if s{/\.?/}{/};
		1714	redo if s{/[^/]+/\.\./}{/};
		1715	}
		1716
		1717	$path
		1718	}
		1719
		1720	sub new_from_path {
		1721	my (undef, $path, $base) = @_;
		1722
		1723	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1724
		1725	$path = normalise $path, $base;
		1726
		1727	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1728	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1729	my $self = bless cf::map::new, $pkg;
		1730	$self->{path} = $path; $self->path ($path);
		1731	$self->init; # pass $1 etc.
		1732	return $self;
		1733	}
		1734	}
		1735
		1736	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1737	()
		1738	}
		1739
		1740	sub init {
		1741	my ($self) = @_;
		1742
		1743	$self
		1744	}
		1745
		1746	sub as_string {
		1747	my ($self) = @_;
		1748
		1749	"$self->{path}"
		1750	}
		1751
		1752	# the displayed name, this is a one way mapping
		1753	sub visible_name {
		1754	&as_string
		1755	}
		1756
		1757	# the original (read-only) location
		1758	sub load_path {
		1759	my ($self) = @_;
		1760
		1761	"$MAPDIR/$self->{path}.map"
		1762	}
		1763
		1764	# the temporary/swap location
		1765	sub save_path {
		1766	my ($self) = @_;
		1767
		1768	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1769	"$TMPDIR/$path.map"
		1770	}
		1771
		1772	# the unique path, undef == no special unique path
		1773	sub uniq_path {
		1774	my ($self) = @_;
		1775
		1776	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1777	"$UNIQUEDIR/$path"
		1778	}
		1779
1287	# and all this just because we cannot iterate over	1780	# and all this just because we cannot iterate over
1288	# all maps in C++...	1781	# all maps in C++...
1289	sub change_all_map_light {	1782	sub change_all_map_light {
1290	my ($change) = @_;	1783	my ($change) = @_;
1291		1784
1292	$_->change_map_light ($change)	1785	$_->change_map_light ($change)
1293	for grep $_->outdoor, values %cf::MAP;	1786	for grep $_->outdoor, values %cf::MAP;
1294	}	1787	}
1295		1788
		1789	sub decay_objects {
		1790	my ($self) = @_;
		1791
		1792	return if $self->{deny_reset};
		1793
		1794	$self->do_decay_objects;
		1795	}
		1796
		1797	sub unlink_save {
		1798	my ($self) = @_;
		1799
		1800	utf8::encode (my $save = $self->save_path);
		1801	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1802	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1803	}
		1804
1296	sub load_map_header($) {	1805	sub load_header_from($) {
1297	my ($path) = @_;	1806	my ($self, $path) = @_;
1298		1807
1299	utf8::encode $path;	1808	utf8::encode $path;
1300	aio_open $path, O_RDONLY, 0	1809	my $f = new_from_file cf::object::thawer $path
1301	or return;	1810	or return;
1302		1811
1303	my $map = cf::map::new	1812	$self->_load_header ($f)
1304	or return;	1813	or return;
1305		1814
1306	# for better error messages only, will be overwritten later	1815	local $MAP_LOADING{$self->{path}} = $self;
1307	$map->path ($path);	1816	$f->resolve_delayed_derefs;
1308		1817
1309	$map->load_header ($path)	1818	$self->{load_path} = $path;
		1819
		1820	1
		1821	}
		1822
		1823	sub load_header_orig {
		1824	my ($self) = @_;
		1825
		1826	$self->load_header_from ($self->load_path)
		1827	}
		1828
		1829	sub load_header_temp {
		1830	my ($self) = @_;
		1831
		1832	$self->load_header_from ($self->save_path)
		1833	}
		1834
		1835	sub prepare_temp {
		1836	my ($self) = @_;
		1837
		1838	$self->last_access ((delete $self->{last_access})
		1839	|| $cf::RUNTIME); #d#
		1840	# safety
		1841	$self->{instantiate_time} = $cf::RUNTIME
		1842	if $self->{instantiate_time} > $cf::RUNTIME;
		1843	}
		1844
		1845	sub prepare_orig {
		1846	my ($self) = @_;
		1847
		1848	$self->{load_original} = 1;
		1849	$self->{instantiate_time} = $cf::RUNTIME;
		1850	$self->last_access ($cf::RUNTIME);
		1851	$self->instantiate;
		1852	}
		1853
		1854	sub load_header {
		1855	my ($self) = @_;
		1856
		1857	if ($self->load_header_temp) {
		1858	$self->prepare_temp;
		1859	} else {
		1860	$self->load_header_orig
1310	or return;	1861	or return;
		1862	$self->prepare_orig;
		1863	}
1311		1864
1312	$map->{load_path} = $path;	1865	$self->{deny_reset} = 1
		1866	if $self->no_reset;
1313		1867
1314	$map	1868	$self->default_region (cf::region::find_by_path $self->{path})
		1869	unless $self->default_region;
		1870
		1871	1
1315	}	1872	}
1316		1873
1317	sub find;	1874	sub find;
1318	sub find {	1875	sub find {
1319	my ($path, $origin) = @_;	1876	my ($path, $origin) = @_;
1320		1877
1321	#warn "find<$path,$origin>\n";#d#
1322
1323	$path = new cf::path $path, $origin && $origin->path;	1878	$path = normalise $path, $origin && $origin->path;
1324	my $key = $path->as_string;
1325		1879
		1880	cf::lock_wait "map_data:$path";#d#remove
1326	cf::lock_wait "map_find:$key";	1881	cf::lock_wait "map_find:$path";
1327		1882
1328	$cf::MAP{$key} || do {	1883	$cf::MAP{$path} || do {
1329	my $guard = cf::lock_acquire "map_find:$key";	1884	my $guard1 = cf::lock_acquire "map_find:$path";
		1885	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1330		1886
1331	# do it the slow way	1887	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;	1888	or return;
1345		1889
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;	1890	$map->{last_save} = $cf::RUNTIME;
1358		1891
1359	Coro::cede;	1892	$map->load_header
		1893	or return;
1360		1894
1361	if ($map->should_reset) {	1895	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1896	# doing this can freeze the server in a sync job, obviously
		1897	#$cf::WAIT_FOR_TICK->wait;
		1898	undef $guard1;
		1899	undef $guard2;
1362	$map->reset;	1900	$map->reset;
1363	undef $guard;
1364	$map = find $path	1901	return find $path;
1365	or return;
1366	}	1902	}
1367		1903
1368	$cf::MAP{$key} = $map	1904	$cf::MAP{$path} = $map
1369	}	1905	}
1370	}	1906	}
		1907
		1908	sub pre_load { }
		1909	sub post_load { }
1371		1910
1372	sub load {	1911	sub load {
1373	my ($self) = @_;	1912	my ($self) = @_;
1374		1913
		1914	local $self->{deny_reset} = 1; # loading can take a long time
		1915
1375	my $path = $self->{path};	1916	my $path = $self->{path};
		1917
		1918	{
1376	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1919	my $guard = cf::lock_acquire "map_data:$path";
1377		1920
		1921	return unless $self->valid;
1378	return if $self->in_memory != cf::MAP_SWAPPED;	1922	return unless $self->in_memory == cf::MAP_SWAPPED;
1379		1923
1380	$self->in_memory (cf::MAP_LOADING);	1924	$self->in_memory (cf::MAP_LOADING);
1381		1925
1382	$self->alloc;	1926	$self->alloc;
1383	$self->load_objects ($self->{load_path}, 1)	1927
		1928	$self->pre_load;
		1929	cf::cede_to_tick;
		1930
		1931	my $f = new_from_file cf::object::thawer $self->{load_path};
		1932	$f->skip_block;
		1933	$self->_load_objects ($f)
1384	or return;	1934	or return;
1385		1935
1386	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1936	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1387	if delete $self->{load_original};	1937	if delete $self->{load_original};
1388		1938
1389	if (my $uniq = $path->uniq_path) {	1939	if (my $uniq = $self->uniq_path) {
1390	utf8::encode $uniq;	1940	utf8::encode $uniq;
1391	if (aio_open $uniq, O_RDONLY, 0) {	1941	unless (aio_stat $uniq) {
		1942	if (my $f = new_from_file cf::object::thawer $uniq) {
1392	$self->clear_unique_items;	1943	$self->clear_unique_items;
1393	$self->load_objects ($uniq, 0);	1944	$self->_load_objects ($f);
		1945	$f->resolve_delayed_derefs;
		1946	}
1394	}	1947	}
1395	}	1948	}
1396		1949
1397	Coro::cede;	1950	$f->resolve_delayed_derefs;
1398		1951
		1952	cf::cede_to_tick;
1399	# now do the right thing for maps	1953	# now do the right thing for maps
1400	$self->link_multipart_objects;	1954	$self->link_multipart_objects;
1401
1402	if ($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)	1955	$self->difficulty ($self->estimate_difficulty)
1411	unless $self->difficulty;	1956	unless $self->difficulty;
		1957	cf::cede_to_tick;
		1958
		1959	unless ($self->{deny_activate}) {
		1960	$self->decay_objects;
		1961	$self->fix_auto_apply;
		1962	$self->update_buttons;
		1963	cf::cede_to_tick;
		1964	$self->set_darkness_map;
		1965	cf::cede_to_tick;
1412	$self->activate;	1966	$self->activate;
1413	}	1967	}
1414		1968
1415	Coro::cede;	1969	$self->{last_save} = $cf::RUNTIME;
		1970	$self->last_access ($cf::RUNTIME);
1416		1971
1417	$self->in_memory (cf::MAP_IN_MEMORY);	1972	$self->in_memory (cf::MAP_IN_MEMORY);
		1973	}
		1974
		1975	$self->post_load;
		1976	}
		1977
		1978	sub customise_for {
		1979	my ($self, $ob) = @_;
		1980
		1981	return find "~" . $ob->name . "/" . $self->{path}
		1982	if $self->per_player;
		1983
		1984	# return find "?party/" . $ob->name . "/" . $self->{path}
		1985	# if $self->per_party;
		1986
		1987	$self
1418	}	1988	}
1419		1989
1420	# find and load all maps in the 3x3 area around a map	1990	# find and load all maps in the 3x3 area around a map
1421	sub load_diag {	1991	sub load_neighbours {
1422	my ($map) = @_;	1992	my ($map) = @_;
1423		1993
1424	my @diag; # diagonal neighbours	1994	my @neigh; # diagonal neighbours
1425		1995
1426	for (0 .. 3) {	1996	for (0 .. 3) {
1427	my $neigh = $map->tile_path ($_)	1997	my $neigh = $map->tile_path ($_)
1428	or next;	1998	or next;
1429	$neigh = find $neigh, $map	1999	$neigh = find $neigh, $map
1430	or next;	2000	or next;
1431	$neigh->load;	2001	$neigh->load;
1432		2002
		2003	push @neigh,
1433	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2004	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1434	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2005	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1435	}	2006	}
1436		2007
1437	for (@diag) {	2008	for (grep defined $_->[0], @neigh) {
		2009	my ($path, $origin) = @$_;
1438	my $neigh = find @$_	2010	my $neigh = find $path, $origin
1439	or next;	2011	or next;
1440	$neigh->load;	2012	$neigh->load;
1441	}	2013	}
1442	}	2014	}
1443		2015
…		…
1448	}	2020	}
1449		2021
1450	sub do_load_sync {	2022	sub do_load_sync {
1451	my ($map) = @_;	2023	my ($map) = @_;
1452		2024
		2025	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2026	if $Coro::current == $Coro::main;
		2027
1453	cf::sync_job { $map->load };	2028	cf::sync_job { $map->load };
1454	}	2029	}
1455		2030
1456	our %MAP_PREFETCH;	2031	our %MAP_PREFETCH;
		2032	our $MAP_PREFETCHER = undef;
		2033
		2034	sub find_async {
		2035	my ($path, $origin, $load) = @_;
		2036
		2037	$path = normalise $path, $origin && $origin->{path};
		2038
		2039	if (my $map = $cf::MAP{$path}) {
		2040	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2041	}
		2042
		2043	$MAP_PREFETCH{$path} |= $load;
		2044
1457	our $MAP_PREFETCHER = Coro::async {	2045	$MAP_PREFETCHER ||= cf::async {
1458	while () {	2046	$Coro::current->{desc} = "map prefetcher";
		2047
1459	while (%MAP_PREFETCH) {	2048	while (%MAP_PREFETCH) {
1460	my $key = each %MAP_PREFETCH	2049	while (my ($k, $v) = each %MAP_PREFETCH) {
1461	or next;	2050	if (my $map = find $k) {
		2051	$map->load if $v;
		2052	}
		2053
1462	my $path = delete $MAP_PREFETCH{$key};	2054	delete $MAP_PREFETCH{$k};
1463
1464	my $map = find $path
1465	or next;
1466	$map->load;
1467	}	2055	}
1468	Coro::schedule;	2056	}
		2057	undef $MAP_PREFETCHER;
1469	}	2058	};
1470	};
1471
1472	sub find_async {
1473	my ($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;	2059	$MAP_PREFETCHER->prio (6);
1484		2060
1485	()	2061	()
1486	}	2062	}
1487		2063
1488	sub save {	2064	sub save {
1489	my ($self) = @_;	2065	my ($self) = @_;
1490		2066
1491	my $lock = cf::lock_acquire "map_data:" . $self->path;	2067	my $lock = cf::lock_acquire "map_data:$self->{path}";
1492		2068
1493	$self->{last_save} = $cf::RUNTIME;	2069	$self->{last_save} = $cf::RUNTIME;
1494		2070
1495	return unless $self->dirty;	2071	return unless $self->dirty;
1496		2072
1497	my $save = $self->{path}->save_path; utf8::encode $save;	2073	my $save = $self->save_path; utf8::encode $save;
1498	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2074	my $uniq = $self->uniq_path; utf8::encode $uniq;
1499		2075
1500	$self->{load_path} = $save;	2076	$self->{load_path} = $save;
1501		2077
1502	return if $self->{deny_save};	2078	return if $self->{deny_save};
1503		2079
1504	local $self->{last_access} = $self->last_access;#d#	2080	local $self->{last_access} = $self->last_access;#d#
1505		2081
1506	cf::async {	2082	cf::async {
		2083	$Coro::current->{desc} = "map player save";
1507	$_->contr->save for $self->players;	2084	$_->contr->save for $self->players;
1508	};	2085	};
1509		2086
1510	if ($uniq) {	2087	if ($uniq) {
1511	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2088	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1512	$self->save_objects ($uniq, cf::IO_UNIQUES);	2089	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1513	} else {	2090	} else {
1514	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2091	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1515	}	2092	}
1516	}	2093	}
1517		2094
1518	sub swap_out {	2095	sub swap_out {
1519	my ($self) = @_;	2096	my ($self) = @_;
1520		2097
1521	# save first because save cedes	2098	# save first because save cedes
1522	$self->save;	2099	$self->save;
1523		2100
1524	my $lock = cf::lock_acquire "map_data:" . $self->path;	2101	my $lock = cf::lock_acquire "map_data:$self->{path}";
1525		2102
1526	return if $self->players;	2103	return if $self->players;
1527	return if $self->in_memory != cf::MAP_IN_MEMORY;	2104	return if $self->in_memory != cf::MAP_IN_MEMORY;
1528	return if $self->{deny_save};	2105	return if $self->{deny_save};
1529		2106
		2107	$self->in_memory (cf::MAP_SWAPPED);
		2108
		2109	$self->deactivate;
		2110	$_->clear_links_to ($self) for values %cf::MAP;
1530	$self->clear;	2111	$self->clear;
1531	$self->in_memory (cf::MAP_SWAPPED);
1532	}	2112	}
1533		2113
1534	sub reset_at {	2114	sub reset_at {
1535	my ($self) = @_;	2115	my ($self) = @_;
1536		2116
1537	# TODO: safety, remove and allow resettable per-player maps	2117	# TODO: safety, remove and allow resettable per-player maps
1538	return 1e99 if $self->{path}{user_rel};
1539	return 1e99 if $self->{deny_reset};	2118	return 1e99 if $self->{deny_reset};
1540		2119
1541	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2120	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1542	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2121	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1543		2122
…		…
1548	my ($self) = @_;	2127	my ($self) = @_;
1549		2128
1550	$self->reset_at <= $cf::RUNTIME	2129	$self->reset_at <= $cf::RUNTIME
1551	}	2130	}
1552		2131
1553	sub unlink_save {
1554	my ($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	$self->save;
1572	}
1573
1574	sub reset {	2132	sub reset {
1575	my ($self) = @_;	2133	my ($self) = @_;
1576		2134
1577	my $lock = cf::lock_acquire "map_data:" . $self->path;	2135	my $lock = cf::lock_acquire "map_data:$self->{path}";
1578		2136
1579	return if $self->players;	2137	return if $self->players;
1580	return if $self->{path}{user_rel};#d#
1581		2138
1582	warn "resetting map ", $self->path;#d#	2139	warn "resetting map ", $self->path;
		2140
		2141	$self->in_memory (cf::MAP_SWAPPED);
		2142
		2143	# need to save uniques path
		2144	unless ($self->{deny_save}) {
		2145	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2146
		2147	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2148	if $uniq;
		2149	}
1583		2150
1584	delete $cf::MAP{$self->path};	2151	delete $cf::MAP{$self->path};
1585		2152
		2153	$self->deactivate;
1586	$_->clear_links_to ($self) for values %cf::MAP;	2154	$_->clear_links_to ($self) for values %cf::MAP;
		2155	$self->clear;
1587		2156
1588	$self->unlink_save;	2157	$self->unlink_save;
1589	$self->destroy;	2158	$self->destroy;
1590	}	2159	}
1591		2160
1592	my $nuke_counter = "aaaa";	2161	my $nuke_counter = "aaaa";
1593		2162
1594	sub nuke {	2163	sub nuke {
1595	my ($self) = @_;	2164	my ($self) = @_;
1596		2165
		2166	{
		2167	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2168
		2169	delete $cf::MAP{$self->path};
		2170
		2171	$self->unlink_save;
		2172
		2173	bless $self, "cf::map";
		2174	delete $self->{deny_reset};
1597	$self->{deny_save} = 1;	2175	$self->{deny_save} = 1;
1598	$self->reset_timeout (1);	2176	$self->reset_timeout (1);
1599	$self->rename ("{nuke}/" . ($nuke_counter++));	2177	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2178
		2179	$cf::MAP{$self->path} = $self;
		2180	}
		2181
1600	$self->reset; # polite request, might not happen	2182	$self->reset; # polite request, might not happen
1601	}	2183	}
1602		2184
1603	sub customise_for {	2185	=item $maps = cf::map::tmp_maps
1604	my ($map, $ob) = @_;
1605		2186
1606	if ($map->per_player) {	2187	Returns an arrayref with all map paths of currently instantiated and saved
1607	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2188	maps. May block.
		2189
		2190	=cut
		2191
		2192	sub tmp_maps() {
1608	}	2193	[
		2194	map {
		2195	utf8::decode $_;
		2196	/\.map$/
		2197	? normalise $_
		2198	: ()
		2199	} @{ aio_readdir $TMPDIR or [] }
		2200	]
		2201	}
1609		2202
1610	$map	2203	=item $maps = cf::map::random_maps
		2204
		2205	Returns an arrayref with all map paths of currently instantiated and saved
		2206	random maps. May block.
		2207
		2208	=cut
		2209
		2210	sub random_maps() {
		2211	[
		2212	map {
		2213	utf8::decode $_;
		2214	/\.map$/
		2215	? normalise "?random/$_"
		2216	: ()
		2217	} @{ aio_readdir $RANDOMDIR or [] }
		2218	]
1611	}	2219	}
1612		2220
1613	=item cf::map::unique_maps	2221	=item cf::map::unique_maps
1614		2222
1615	Returns an arrayref of cf::path's of all shared maps that have	2223	Returns an arrayref of paths of all shared maps that have
1616	instantiated unique items. May block.	2224	instantiated unique items. May block.
1617		2225
1618	=cut	2226	=cut
1619		2227
1620	sub unique_maps() {	2228	sub unique_maps() {
1621	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2229	[
1622	or return;	2230	map {
1623
1624	my @paths;
1625
1626	for (@$files) {
1627	utf8::decode $_;	2231	utf8::decode $_;
1628	next if /\.pst$/;	2232	/\.map$/
1629	next unless /^$PATH_SEP/o;	2233	? normalise $_
1630		2234	: ()
1631	push @paths, new cf::path $_;	2235	} @{ aio_readdir $UNIQUEDIR or [] }
1632	}	2236	]
1633
1634	\@paths
1635	}	2237	}
1636		2238
1637	package cf;	2239	package cf;
1638		2240
1639	=back	2241	=back
…		…
1657	map { $_, inv_recursive_ $_->inv } @_	2259	map { $_, inv_recursive_ $_->inv } @_
1658	}	2260	}
1659		2261
1660	sub inv_recursive {	2262	sub inv_recursive {
1661	inv_recursive_ inv $_[0]	2263	inv_recursive_ inv $_[0]
		2264	}
		2265
		2266	=item $ref = $ob->ref
		2267
		2268	creates and returns a persistent reference to an objetc that can be stored as a string.
		2269
		2270	=item $ob = cf::object::deref ($refstring)
		2271
		2272	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2273	even if the object actually exists. May block.
		2274
		2275	=cut
		2276
		2277	sub deref {
		2278	my ($ref) = @_;
		2279
		2280	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2281	my ($uuid, $name) = ($1, $2);
		2282	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2283	or return;
		2284	$pl->ob->uuid eq $uuid
		2285	or return;
		2286
		2287	$pl->ob
		2288	} else {
		2289	warn "$ref: cannot resolve object reference\n";
		2290	undef
		2291	}
1662	}	2292	}
1663		2293
1664	package cf;	2294	package cf;
1665		2295
1666	=back	2296	=back
…		…
1685		2315
1686	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2316	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1687		2317
1688	if ($self->{record_replies}) {	2318	if ($self->{record_replies}) {
1689	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2319	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2320
1690	} else {	2321	} else {
		2322	my $pl = $self->contr;
		2323
		2324	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2325	my $dialog = $pl->{npc_dialog};
		2326	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2327
		2328	} else {
1691	$msg = $npc->name . " says: $msg" if $npc;	2329	$msg = $npc->name . " says: $msg" if $npc;
1692	$self->message ($msg, $flags);	2330	$self->message ($msg, $flags);
		2331	}
1693	}	2332	}
		2333	}
		2334
		2335	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2336
		2337	=cut
		2338
		2339	sub cf::object::send_msg {
		2340	my $pl = shift->contr
		2341	or return;
		2342	$pl->send_msg (@_);
1694	}	2343	}
1695		2344
1696	=item $player_object->may ("access")	2345	=item $player_object->may ("access")
1697		2346
1698	Returns wether the given player is authorized to access resource "access"	2347	Returns wether the given player is authorized to access resource "access"
…		…
1711		2360
1712	=item $player_object->enter_link	2361	=item $player_object->enter_link
1713		2362
1714	Freezes the player and moves him/her to a special map (C<{link}>).	2363	Freezes the player and moves him/her to a special map (C<{link}>).
1715		2364
1716	The player should be reaosnably safe there for short amounts of time. You	2365	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.	2366	I<MUST> call C<leave_link> as soon as possible, though.
1718		2367
		2368	Will never block.
		2369
1719	=item $player_object->leave_link ($map, $x, $y)	2370	=item $player_object->leave_link ($map, $x, $y)
1720		2371
1721	Moves the player out of the specila link map onto the given map. If the	2372	Moves the player out of the special C<{link}> map onto the specified
1722	map is not valid (or omitted), the player will be moved back to the	2373	map. If the map is not valid (or omitted), the player will be moved back
1723	location he/she was before the call to C<enter_link>, or, if that fails,	2374	to the location he/she was before the call to C<enter_link>, or, if that
1724	to the emergency map position.	2375	fails, to the emergency map position.
1725		2376
1726	Might block.	2377	Might block.
1727		2378
1728	=cut	2379	=cut
		2380
		2381	sub link_map {
		2382	unless ($LINK_MAP) {
		2383	$LINK_MAP = cf::map::find "{link}"
		2384	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2385	$LINK_MAP->load;
		2386	}
		2387
		2388	$LINK_MAP
		2389	}
1729		2390
1730	sub cf::object::player::enter_link {	2391	sub cf::object::player::enter_link {
1731	my ($self) = @_;	2392	my ($self) = @_;
1732		2393
1733	$self->deactivate_recursive;	2394	$self->deactivate_recursive;
1734		2395
1735	return if $self->map == $LINK_MAP;	2396	return if UNIVERSAL::isa $self->map, "ext::map_link";
1736		2397
1737	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2398	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1738	if $self->map;	2399	if $self->map && $self->map->{path} ne "{link}";
1739		2400
1740	$self->enter_map ($LINK_MAP, 20, 20);	2401	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1741	}	2402	}
1742		2403
1743	sub cf::object::player::leave_link {	2404	sub cf::object::player::leave_link {
1744	my ($self, $map, $x, $y) = @_;	2405	my ($self, $map, $x, $y) = @_;
		2406
		2407	return unless $self->contr->active;
1745		2408
1746	my $link_pos = delete $self->{_link_pos};	2409	my $link_pos = delete $self->{_link_pos};
1747		2410
1748	unless ($map) {	2411	unless ($map) {
1749	# restore original map position	2412	# restore original map position
…		…
1763	# use -1 or undef as default coordinates, not 0, 0	2426	# use -1 or undef as default coordinates, not 0, 0
1764	($x, $y) = ($map->enter_x, $map->enter_y)	2427	($x, $y) = ($map->enter_x, $map->enter_y)
1765	if $x <=0 && $y <= 0;	2428	if $x <=0 && $y <= 0;
1766		2429
1767	$map->load;	2430	$map->load;
1768	$map->load_diag;	2431	$map->load_neighbours;
1769		2432
1770	return unless $self->contr->active;	2433	return unless $self->contr->active;
1771	$self->activate_recursive;	2434	$self->activate_recursive;
		2435
		2436	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1772	$self->enter_map ($map, $x, $y);	2437	$self->enter_map ($map, $x, $y);
1773	}	2438	}
1774		2439
1775	cf::player->attach (	2440	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1776	on_logout => sub {
1777	my ($pl) = @_;
1778		2441
1779	# abort map switching before logout	2442	Moves the player to the given map-path and coordinates by first freezing
1780	if ($pl->ob->{_link_pos}) {	2443	her, loading and preparing them map, calling the provided $check callback
1781	cf::sync_job {	2444	that has to return the map if sucecssful, and then unfreezes the player on
1782	$pl->ob->leave_link	2445	the new (success) or old (failed) map position. In either case, $done will
1783	};	2446	be called at the end of this process.
1784	}
1785	},
1786	on_login => sub {
1787	my ($pl) = @_;
1788		2447
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	2448	=cut
		2449
		2450	our $GOTOGEN;
1810		2451
1811	sub cf::object::player::goto {	2452	sub cf::object::player::goto {
1812	my ($self, $path, $x, $y) = @_;	2453	my ($self, $path, $x, $y, $check, $done) = @_;
1813		2454
1814	$path = new cf::path $path;	2455	# do generation counting so two concurrent goto's will be executed in-order
		2456	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1815		2457
1816	$self->enter_link;	2458	$self->enter_link;
1817		2459
1818	(async {	2460	(async {
1819	my $map = cf::map::find $path->as_string;	2461	$Coro::current->{desc} = "player::goto $path $x $y";
		2462
		2463	# *tag paths override both path and x|y
		2464	if ($path =~ /^\*(.*)$/) {
		2465	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2466	my $ob = $obs[rand @obs];
		2467
		2468	# see if we actually can go there
		2469	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2470	$ob = $obs[rand @obs];
		2471	} else {
		2472	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2473	}
		2474	# else put us there anyways for now #d#
		2475
		2476	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2477	} else {
		2478	($path, $x, $y) = (undef, undef, undef);
		2479	}
		2480	}
		2481
		2482	my $map = eval {
		2483	my $map = defined $path ? cf::map::find $path : undef;
		2484
		2485	if ($map) {
1820	$map = $map->customise_for ($self) if $map;	2486	$map = $map->customise_for ($self);
1821		2487	$map = $check->($map) if $check && $map;
1822	# warn "entering ", $map->path, " at ($x, $y)\n"	2488	} else {
1823	# if $map;
1824
1825	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2489	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2490	}
1826		2491
		2492	$map
		2493	};
		2494
		2495	if ($@) {
		2496	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2497	LOG llevError | logBacktrace, Carp::longmess $@;
		2498	}
		2499
		2500	if ($gen == $self->{_goto_generation}) {
		2501	delete $self->{_goto_generation};
1827	$self->leave_link ($map, $x, $y);	2502	$self->leave_link ($map, $x, $y);
		2503	}
		2504
		2505	$done->() if $done;
1828	})->prio (1);	2506	})->prio (1);
1829	}	2507	}
1830		2508
1831	=item $player_object->enter_exit ($exit_object)	2509	=item $player_object->enter_exit ($exit_object)
1832		2510
…		…
1834		2512
1835	sub parse_random_map_params {	2513	sub parse_random_map_params {
1836	my ($spec) = @_;	2514	my ($spec) = @_;
1837		2515
1838	my $rmp = { # defaults	2516	my $rmp = { # defaults
1839	xsize => 10,	2517	xsize => (cf::rndm 15, 40),
1840	ysize => 10,	2518	ysize => (cf::rndm 15, 40),
		2519	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2520	#layout => string,
1841	};	2521	};
1842		2522
1843	for (split /\n/, $spec) {	2523	for (split /\n/, $spec) {
1844	my ($k, $v) = split /\s+/, $_, 2;	2524	my ($k, $v) = split /\s+/, $_, 2;
1845		2525
…		…
1849	$rmp	2529	$rmp
1850	}	2530	}
1851		2531
1852	sub prepare_random_map {	2532	sub prepare_random_map {
1853	my ($exit) = @_;	2533	my ($exit) = @_;
		2534
		2535	my $guard = cf::lock_acquire "exit_prepare:$exit";
1854		2536
1855	# all this does is basically replace the /! path by	2537	# all this does is basically replace the /! path by
1856	# a new random map path (?random/...) with a seed	2538	# a new random map path (?random/...) with a seed
1857	# that depends on the exit object	2539	# that depends on the exit object
1858		2540
1859	my $rmp = parse_random_map_params $exit->msg;	2541	my $rmp = parse_random_map_params $exit->msg;
1860		2542
1861	if ($exit->map) {	2543	if ($exit->map) {
1862	$rmp->{region} = $exit->map->region_name;	2544	$rmp->{region} = $exit->region->name;
1863	$rmp->{origin_map} = $exit->map->path;	2545	$rmp->{origin_map} = $exit->map->path;
1864	$rmp->{origin_x} = $exit->x;	2546	$rmp->{origin_x} = $exit->x;
1865	$rmp->{origin_y} = $exit->y;	2547	$rmp->{origin_y} = $exit->y;
1866	}	2548	}
1867		2549
1868	$rmp->{random_seed} ||= $exit->random_seed;	2550	$rmp->{random_seed} ||= $exit->random_seed;
1869		2551
1870	my $data = cf::to_json $rmp;	2552	my $data = cf::to_json $rmp;
1871	my $md5 = Digest::MD5::md5_hex $data;	2553	my $md5 = Digest::MD5::md5_hex $data;
		2554	my $meta = "$RANDOMDIR/$md5.meta";
1872		2555
1873	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2556	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1874	aio_write $fh, 0, (length $data), $data, 0;	2557	aio_write $fh, 0, (length $data), $data, 0;
		2558	undef $fh;
		2559	aio_rename "$meta~", $meta;
1875		2560
1876	$exit->slaying ("?random/$md5");	2561	$exit->slaying ("?random/$md5");
1877	$exit->msg (undef);	2562	$exit->msg (undef);
1878	}	2563	}
1879	}	2564	}
…		…
1881	sub cf::object::player::enter_exit {	2566	sub cf::object::player::enter_exit {
1882	my ($self, $exit) = @_;	2567	my ($self, $exit) = @_;
1883		2568
1884	return unless $self->type == cf::PLAYER;	2569	return unless $self->type == cf::PLAYER;
1885		2570
		2571	if ($exit->slaying eq "/!") {
		2572	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2573	# the problem is that $exit might not survive long enough
		2574	# so it needs to be done right now, right here
		2575	cf::sync_job { prepare_random_map $exit };
		2576	}
		2577
		2578	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2579	my $hp = $exit->stats->hp;
		2580	my $sp = $exit->stats->sp;
		2581
1886	$self->enter_link;	2582	$self->enter_link;
1887		2583
		2584	# if exit is damned, update players death & WoR home-position
		2585	$self->contr->savebed ($slaying, $hp, $sp)
		2586	if $exit->flag (FLAG_DAMNED);
		2587
1888	(async {	2588	(async {
		2589	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2590
1889	$self->deactivate_recursive; # just to be sure	2591	$self->deactivate_recursive; # just to be sure
1890	unless (eval {	2592	unless (eval {
1891	prepare_random_map $exit	2593	$self->goto ($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		2594
1897	1;	2595	1;
1898	}) {	2596	}) {
1899	$self->message ("Something went wrong deep within the crossfire server. "	2597	$self->message ("Something went wrong deep within the crossfire server. "
1900	. "I'll try to bring you back to the map you were before. "	2598	. "I'll try to bring you back to the map you were before. "
1901	. "Please report this to the dungeon master!",	2599	. "Please report this to the dungeon master!",
1902	cf::NDI_UNIQUE | cf::NDI_RED);	2600	cf::NDI_UNIQUE | cf::NDI_RED);
1903		2601
1904	warn "ERROR in enter_exit: $@";	2602	warn "ERROR in enter_exit: $@";
1905	$self->leave_link;	2603	$self->leave_link;
1906	}	2604	}
1907	})->prio (1);	2605	})->prio (1);
…		…
1920		2618
1921	sub cf::client::send_drawinfo {	2619	sub cf::client::send_drawinfo {
1922	my ($self, $text, $flags) = @_;	2620	my ($self, $text, $flags) = @_;
1923		2621
1924	utf8::encode $text;	2622	utf8::encode $text;
1925	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2623	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1926	}	2624	}
1927		2625
		2626	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2627
		2628	Send a drawinfo or msg packet to the client, formatting the msg for the
		2629	client if neccessary. C<$type> should be a string identifying the type of
		2630	the message, with C<log> being the default. If C<$color> is negative, suppress
		2631	the message unless the client supports the msg packet.
		2632
		2633	=cut
		2634
		2635	our %CHANNEL = (
		2636	"c/identify" => {
		2637	id => "infobox",
		2638	title => "Identify",
		2639	reply => undef,
		2640	tooltip => "Items recently identified",
		2641	},
		2642	"c/examine" => {
		2643	id => "infobox",
		2644	title => "Examine",
		2645	reply => undef,
		2646	tooltip => "Signs and other items you examined",
		2647	},
		2648	"c/lookat" => {
		2649	id => "infobox",
		2650	title => "Look",
		2651	reply => undef,
		2652	tooltip => "What you saw there",
		2653	},
		2654	);
		2655
		2656	sub cf::client::send_msg {
		2657	my ($self, $channel, $msg, $color, @extra) = @_;
		2658
		2659	$msg = $self->pl->expand_cfpod ($msg);
		2660
		2661	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2662
		2663	# check predefined channels, for the benefit of C
		2664	if ($CHANNEL{$channel}) {
		2665	$channel = $CHANNEL{$channel};
		2666
		2667	$self->ext_msg (channel_info => $channel)
		2668	if $self->can_msg;
		2669
		2670	$channel = $channel->{id};
		2671
		2672	} elsif (ref $channel) {
		2673	# send meta info to client, if not yet sent
		2674	unless (exists $self->{channel}{$channel->{id}}) {
		2675	$self->{channel}{$channel->{id}} = $channel;
		2676	$self->ext_msg (channel_info => $channel)
		2677	if $self->can_msg;
		2678	}
		2679
		2680	$channel = $channel->{id};
		2681	}
		2682
		2683	return unless @extra || length $msg;
		2684
		2685	if ($self->can_msg) {
		2686	# default colour, mask it out
		2687	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2688	if $color & cf::NDI_DEF;
		2689
		2690	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2691	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2692	} else {
		2693	if ($color >= 0) {
		2694	# replace some tags by gcfclient-compatible ones
		2695	for ($msg) {
		2696	1 while
		2697	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2698	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2699	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2700	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2701	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2702	}
		2703
		2704	$color &= cf::NDI_COLOR_MASK;
		2705
		2706	utf8::encode $msg;
		2707
		2708	if (0 && $msg =~ /\[/) {
		2709	# COMMAND/INFO
		2710	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2711	} else {
		2712	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2713	$self->send_packet ("drawinfo $color $msg")
		2714	}
		2715	}
		2716	}
		2717	}
		2718
		2719	=item $client->ext_msg ($type, @msg)
		2720
		2721	Sends an ext event to the client.
		2722
		2723	=cut
		2724
		2725	sub cf::client::ext_msg($$@) {
		2726	my ($self, $type, @msg) = @_;
		2727
		2728	if ($self->extcmd == 2) {
		2729	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2730	} elsif ($self->extcmd == 1) { # TODO: remove
		2731	push @msg, msgtype => "event_$type";
		2732	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2733	}
		2734	}
		2735
		2736	=item $client->ext_reply ($msgid, @msg)
		2737
		2738	Sends an ext reply to the client.
		2739
		2740	=cut
		2741
		2742	sub cf::client::ext_reply($$@) {
		2743	my ($self, $id, @msg) = @_;
		2744
		2745	if ($self->extcmd == 2) {
		2746	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2747	} elsif ($self->extcmd == 1) {
		2748	#TODO: version 1, remove
		2749	unshift @msg, msgtype => "reply", msgid => $id;
		2750	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2751	}
		2752	}
1928		2753
1929	=item $success = $client->query ($flags, "text", \&cb)	2754	=item $success = $client->query ($flags, "text", \&cb)
1930		2755
1931	Queues a query to the client, calling the given callback with	2756	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>,	2757	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>.	2758	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1934		2759
1935	Queries can fail, so check the return code. Or don't, as queries will become	2760	Queries can fail, so check the return code. Or don't, as queries will
1936	reliable at some point in the future.	2761	become reliable at some point in the future.
1937		2762
1938	=cut	2763	=cut
1939		2764
1940	sub cf::client::query {	2765	sub cf::client::query {
1941	my ($self, $flags, $text, $cb) = @_;	2766	my ($self, $flags, $text, $cb) = @_;
…		…
1949	utf8::encode $text;	2774	utf8::encode $text;
1950	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2775	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1951		2776
1952	$self->send_packet ($self->{query_queue}[0][0])	2777	$self->send_packet ($self->{query_queue}[0][0])
1953	if @{ $self->{query_queue} } == 1;	2778	if @{ $self->{query_queue} } == 1;
		2779
		2780	1
1954	}	2781	}
1955		2782
1956	cf::client->attach (	2783	cf::client->attach (
		2784	on_connect => sub {
		2785	my ($ns) = @_;
		2786
		2787	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2788	},
1957	on_reply => sub {	2789	on_reply => sub {
1958	my ($ns, $msg) = @_;	2790	my ($ns, $msg) = @_;
1959		2791
1960	# this weird shuffling is so that direct followup queries	2792	# this weird shuffling is so that direct followup queries
1961	# get handled first	2793	# get handled first
1962	my $queue = delete $ns->{query_queue}	2794	my $queue = delete $ns->{query_queue}
1963	or return; # be conservative, not sure how that can happen, but we saw a crash here	2795	or return; # be conservative, not sure how that can happen, but we saw a crash here
1964		2796
1965	(shift @$queue)->[1]->($msg);	2797	(shift @$queue)->[1]->($msg);
		2798	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1966		2799
1967	push @{ $ns->{query_queue} }, @$queue;	2800	push @{ $ns->{query_queue} }, @$queue;
1968		2801
1969	if (@{ $ns->{query_queue} } == @$queue) {	2802	if (@{ $ns->{query_queue} } == @$queue) {
1970	if (@$queue) {	2803	if (@$queue) {
…		…
1972	} else {	2805	} else {
1973	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2806	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1974	}	2807	}
1975	}	2808	}
1976	},	2809	},
		2810	on_exticmd => sub {
		2811	my ($ns, $buf) = @_;
		2812
		2813	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2814
		2815	if (ref $msg) {
		2816	my ($type, $reply, @payload) =
		2817	"ARRAY" eq ref $msg
		2818	? @$msg
		2819	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2820
		2821	my @reply;
		2822
		2823	if (my $cb = $EXTICMD{$type}) {
		2824	@reply = $cb->($ns, @payload);
		2825	}
		2826
		2827	$ns->ext_reply ($reply, @reply)
		2828	if $reply;
		2829
		2830	} else {
		2831	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2832	}
		2833
		2834	cf::override;
		2835	},
1977	);	2836	);
1978		2837
1979	=item $client->async (\&cb)	2838	=item $client->async (\&cb)
1980		2839
1981	Create a new coroutine, running the specified callback. The coroutine will	2840	Create a new coroutine, running the specified callback. The coroutine will
…		…
2022	our $safe = new Safe "safe";	2881	our $safe = new Safe "safe";
2023	our $safe_hole = new Safe::Hole;	2882	our $safe_hole = new Safe::Hole;
2024		2883
2025	$SIG{FPE} = 'IGNORE';	2884	$SIG{FPE} = 'IGNORE';
2026		2885
2027	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2886	$safe->permit_only (Opcode::opset qw(
		2887	:base_core :base_mem :base_orig :base_math
		2888	grepstart grepwhile mapstart mapwhile
		2889	sort time
		2890	));
2028		2891
2029	# here we export the classes and methods available to script code	2892	# here we export the classes and methods available to script code
2030		2893
2031	=pod	2894	=pod
2032		2895
2033	The following fucntions and emthods are available within a safe environment:	2896	The following functions and methods are available within a safe environment:
2034		2897
2035	cf::object contr pay_amount pay_player map	2898	cf::object
		2899	contr pay_amount pay_player map x y force_find force_add
		2900	insert remove name archname title slaying race decrease_ob_nr
		2901
2036	cf::object::player player	2902	cf::object::player
2037	cf::player peaceful	2903	player
2038	cf::map trigger	2904
		2905	cf::player
		2906	peaceful
		2907
		2908	cf::map
		2909	trigger
2039		2910
2040	=cut	2911	=cut
2041		2912
2042	for (	2913	for (
2043	["cf::object" => qw(contr pay_amount pay_player map)],	2914	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2915	insert remove inv name archname title slaying race
		2916	decrease_ob_nr)],
2044	["cf::object::player" => qw(player)],	2917	["cf::object::player" => qw(player)],
2045	["cf::player" => qw(peaceful)],	2918	["cf::player" => qw(peaceful)],
2046	["cf::map" => qw(trigger)],	2919	["cf::map" => qw(trigger)],
2047	) {	2920	) {
2048	no strict 'refs';	2921	no strict 'refs';
…		…
2119	=back	2992	=back
2120		2993
2121	=cut	2994	=cut
2122		2995
2123	#############################################################################	2996	#############################################################################
		2997	# the server's init and main functions
2124		2998
2125	=head2 EXTENSION DATABASE SUPPORT	2999	sub load_facedata($) {
		3000	my ($path) = @_;
2126		3001
2127	Crossfire maintains a very simple database for extension use. It can	3002	# HACK to clear player env face cache, we need some signal framework
2128	currently store anything that can be serialised using Storable, which	3003	# for this (global event?)
2129	excludes objects.	3004	%ext::player_env::MUSIC_FACE_CACHE = ();
2130		3005
2131	The parameter C<$family> should best start with the name of the extension	3006	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2132	using it, it should be unique.
2133		3007
2134	=over 4	3008	warn "loading facedata from $path\n";
2135		3009
2136	=item $hashref = cf::db_get $family	3010	my $facedata;
		3011	0 < aio_load $path, $facedata
		3012	or die "$path: $!";
2137		3013
2138	Return a hashref for use by the extension C<$family>, which can be	3014	$facedata = Coro::Storable::thaw $facedata;
2139	modified. After modifications, you have to call C<cf::db_dirty> or
2140	C<cf::db_sync>.
2141		3015
2142	=item $value = cf::db_get $family => $key	3016	$facedata->{version} == 2
		3017	or cf::cleanup "$path: version mismatch, cannot proceed.";
2143		3018
2144	Returns a single value from the database	3019	# patch in the exptable
2145		3020	$facedata->{resource}{"res/exp_table"} = {
2146	=item cf::db_put $family => $hashref	3021	type => FT_RSRC,
2147		3022	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	});	3023	};
		3024	cf::cede_to_tick;
2197		3025
2198	sub db_dirty() {
2199	$dirty = 1;
2200	$idle->start;
2201	}	3026	{
		3027	my $faces = $facedata->{faceinfo};
2202		3028
2203	sub db_get($;$) {	3029	while (my ($face, $info) = each %$faces) {
2204	@_ >= 2	3030	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2205	? $DB->{$_[0]}{$_[1]}	3031	cf::face::set_visibility $idx, $info->{visibility};
2206	: ($DB->{$_[0]} ||= { })	3032	cf::face::set_magicmap $idx, $info->{magicmap};
2207	}	3033	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3034	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2208		3035
2209	sub db_put($$;$) {	3036	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	},	3037	}
2223	);
2224	}
2225		3038
2226	#############################################################################	3039	while (my ($face, $info) = each %$faces) {
2227	# the server's main()	3040	next unless $info->{smooth};
		3041	my $idx = cf::face::find $face
		3042	or next;
		3043	if (my $smooth = cf::face::find $info->{smooth}) {
		3044	cf::face::set_smooth $idx, $smooth;
		3045	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3046	} else {
		3047	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3048	}
2228		3049
2229	sub cfg_load {	3050	cf::cede_to_tick;
		3051	}
		3052	}
		3053
		3054	{
		3055	my $anims = $facedata->{animinfo};
		3056
		3057	while (my ($anim, $info) = each %$anims) {
		3058	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3059	cf::cede_to_tick;
		3060	}
		3061
		3062	cf::anim::invalidate_all; # d'oh
		3063	}
		3064
		3065	{
		3066	# TODO: for gcfclient pleasure, we should give resources
		3067	# that gcfclient doesn't grok a >10000 face index.
		3068	my $res = $facedata->{resource};
		3069
		3070	my $soundconf = delete $res->{"res/sound.conf"};
		3071
		3072	while (my ($name, $info) = each %$res) {
		3073	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3074	my $data;
		3075
		3076	if ($info->{type} & 1) {
		3077	# prepend meta info
		3078
		3079	my $meta = $enc->encode ({
		3080	name => $name,
		3081	%{ $info->{meta} || {} },
		3082	});
		3083
		3084	$data = pack "(w/a*)*", $meta, $info->{data};
		3085	} else {
		3086	$data = $info->{data};
		3087	}
		3088
		3089	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3090	cf::face::set_type $idx, $info->{type};
		3091
		3092	cf::cede_to_tick;
		3093	}
		3094
		3095	if ($soundconf) {
		3096	$soundconf = $enc->decode (delete $soundconf->{data});
		3097
		3098	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3099	my $sound = $soundconf->{compat}[$_]
		3100	or next;
		3101
		3102	my $face = cf::face::find "sound/$sound->[1]";
		3103	cf::sound::set $sound->[0] => $face;
		3104	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3105	}
		3106
		3107	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3108	my $face = cf::face::find "sound/$v";
		3109	cf::sound::set $k => $face;
		3110	}
		3111	}
		3112	}
		3113
		3114	1
		3115	}
		3116
		3117	register_exticmd fx_want => sub {
		3118	my ($ns, $want) = @_;
		3119
		3120	while (my ($k, $v) = each %$want) {
		3121	$ns->fx_want ($k, $v);
		3122	}
		3123	};
		3124
		3125	sub reload_regions {
		3126	# HACK to clear player env face cache, we need some signal framework
		3127	# for this (global event?)
		3128	%ext::player_env::MUSIC_FACE_CACHE = ();
		3129
		3130	load_resource_file "$MAPDIR/regions"
		3131	or die "unable to load regions file\n";
		3132
		3133	for (cf::region::list) {
		3134	$_->{match} = qr/$_->{match}/
		3135	if exists $_->{match};
		3136	}
		3137	}
		3138
		3139	sub reload_facedata {
		3140	load_facedata "$DATADIR/facedata"
		3141	or die "unable to load facedata\n";
		3142	}
		3143
		3144	sub reload_archetypes {
		3145	load_resource_file "$DATADIR/archetypes"
		3146	or die "unable to load archetypes\n";
		3147	#d# NEED to laod twice to resolve forward references
		3148	# this really needs to be done in an extra post-pass
		3149	# (which needs to be synchronous, so solve it differently)
		3150	load_resource_file "$DATADIR/archetypes"
		3151	or die "unable to load archetypes\n";
		3152	}
		3153
		3154	sub reload_treasures {
		3155	load_resource_file "$DATADIR/treasures"
		3156	or die "unable to load treasurelists\n";
		3157	}
		3158
		3159	sub reload_resources {
		3160	warn "reloading resource files...\n";
		3161
		3162	reload_regions;
		3163	reload_facedata;
		3164	#reload_archetypes;#d#
		3165	reload_archetypes;
		3166	reload_treasures;
		3167
		3168	warn "finished reloading resource files\n";
		3169	}
		3170
		3171	sub init {
		3172	reload_resources;
		3173	}
		3174
		3175	sub reload_config {
2230	open my $fh, "<:utf8", cf::confdir . "/config"	3176	open my $fh, "<:utf8", "$CONFDIR/config"
2231	or return;	3177	or return;
2232		3178
2233	local $/;	3179	local $/;
2234	*CFG = YAML::Syck::Load <$fh>;	3180	*CFG = YAML::Syck::Load <$fh>;
2235		3181
…		…
2249		3195
2250	sub main {	3196	sub main {
2251	# we must not ever block the main coroutine	3197	# we must not ever block the main coroutine
2252	local $Coro::idle = sub {	3198	local $Coro::idle = sub {
2253	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3199	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3200	(async {
		3201	$Coro::current->{desc} = "IDLE BUG HANDLER";
2254	async { Event::one_event };	3202	Event::one_event;
		3203	})->prio (Coro::PRIO_MAX);
2255	};	3204	};
2256		3205
2257	cfg_load;	3206	reload_config;
2258	db_load;	3207	db_init;
2259	load_extensions;	3208	load_extensions;
		3209
		3210	$TICK_WATCHER->start;
2260	Event::loop;	3211	Event::loop;
2261	}	3212	}
2262		3213
2263	#############################################################################	3214	#############################################################################
2264	# initialisation and cleanup	3215	# initialisation and cleanup
2265		3216
2266	# install some emergency cleanup handlers	3217	# install some emergency cleanup handlers
2267	BEGIN {	3218	BEGIN {
2268	for my $signal (qw(INT HUP TERM)) {	3219	for my $signal (qw(INT HUP TERM)) {
2269	Event->signal (	3220	Event->signal (
		3221	reentrant => 0,
2270	data => WF_AUTOCANCEL,	3222	data => WF_AUTOCANCEL,
2271	signal => $signal,	3223	signal => $signal,
		3224	prio => 0,
2272	cb => sub {	3225	cb => sub {
2273	cf::cleanup "SIG$signal";	3226	cf::cleanup "SIG$signal";
2274	},	3227	},
2275	);	3228	);
2276	}	3229	}
2277	}	3230	}
2278		3231
		3232	sub write_runtime {
		3233	my $runtime = "$LOCALDIR/runtime";
		3234
		3235	# first touch the runtime file to show we are still running:
		3236	# the fsync below can take a very very long time.
		3237
		3238	IO::AIO::aio_utime $runtime, undef, undef;
		3239
		3240	my $guard = cf::lock_acquire "write_runtime";
		3241
		3242	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3243	or return;
		3244
		3245	my $value = $cf::RUNTIME + 90 + 10;
		3246	# 10 is the runtime save interval, for a monotonic clock
		3247	# 60 allows for the watchdog to kill the server.
		3248
		3249	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3250	and return;
		3251
		3252	# always fsync - this file is important
		3253	aio_fsync $fh
		3254	and return;
		3255
		3256	# touch it again to show we are up-to-date
		3257	aio_utime $fh, undef, undef;
		3258
		3259	close $fh
		3260	or return;
		3261
		3262	aio_rename "$runtime~", $runtime
		3263	and return;
		3264
		3265	warn "runtime file written.\n";
		3266
		3267	1
		3268	}
		3269
2279	sub emergency_save() {	3270	sub emergency_save() {
2280	my $freeze_guard = cf::freeze_mainloop;	3271	my $freeze_guard = cf::freeze_mainloop;
2281		3272
2282	warn "enter emergency perl save\n";	3273	warn "enter emergency perl save\n";
2283		3274
2284	cf::sync_job {	3275	cf::sync_job {
2285	# use a peculiar iteration method to avoid tripping on perl	3276	# use a peculiar iteration method to avoid tripping on perl
2286	# refcount bugs in for. also avoids problems with players	3277	# refcount bugs in for. also avoids problems with players
2287	# and maps saved/Destroyed asynchronously.	3278	# and maps saved/destroyed asynchronously.
2288	warn "begin emergency player save\n";	3279	warn "begin emergency player save\n";
2289	for my $login (keys %cf::PLAYER) {	3280	for my $login (keys %cf::PLAYER) {
2290	my $pl = $cf::PLAYER{$login} or next;	3281	my $pl = $cf::PLAYER{$login} or next;
2291	$pl->valid or next;	3282	$pl->valid or next;
2292	$pl->save;	3283	$pl->save;
…		…
2298	my $map = $cf::MAP{$path} or next;	3289	my $map = $cf::MAP{$path} or next;
2299	$map->valid or next;	3290	$map->valid or next;
2300	$map->save;	3291	$map->save;
2301	}	3292	}
2302	warn "end emergency map save\n";	3293	warn "end emergency map save\n";
		3294
		3295	warn "begin emergency database checkpoint\n";
		3296	BDB::db_env_txn_checkpoint $DB_ENV;
		3297	warn "end emergency database checkpoint\n";
2303	};	3298	};
2304		3299
2305	warn "leave emergency perl save\n";	3300	warn "leave emergency perl save\n";
2306	}	3301	}
2307		3302
		3303	sub post_cleanup {
		3304	my ($make_core) = @_;
		3305
		3306	warn Carp::longmess "post_cleanup backtrace"
		3307	if $make_core;
		3308	}
		3309
2308	sub reload() {	3310	sub do_reload_perl() {
2309	# can/must only be called in main	3311	# can/must only be called in main
2310	if ($Coro::current != $Coro::main) {	3312	if ($Coro::current != $Coro::main) {
2311	warn "can only reload from main coroutine\n";	3313	warn "can only reload from main coroutine";
2312	return;	3314	return;
2313	}	3315	}
2314		3316
2315	warn "reloading...";	3317	warn "reloading...";
2316		3318
2317	warn "freezing server";	3319	warn "entering sync_job";
2318	my $guard = freeze_mainloop;	3320
		3321	cf::sync_job {
		3322	cf::write_runtime; # external watchdog should not bark
2319	cf::emergency_save;	3323	cf::emergency_save;
		3324	cf::write_runtime; # external watchdog should not bark
2320		3325
2321	warn "sync database to disk";	3326	warn "syncing database to disk";
2322	cf::db_sync;	3327	BDB::db_env_txn_checkpoint $DB_ENV;
2323	IO::AIO::flush;
2324		3328
2325	eval {
2326	# if anything goes wrong in here, we should simply crash as we already saved	3329	# if anything goes wrong in here, we should simply crash as we already saved
2327		3330
2328	warn "cancel all watchers";	3331	warn "cancelling all WF_AUTOCANCEL watchers";
2329	for (Event::all_watchers) {	3332	for (Event::all_watchers) {
2330	$_->cancel if $_->data & WF_AUTOCANCEL;	3333	$_->cancel if $_->data & WF_AUTOCANCEL;
2331	}	3334	}
2332		3335
		3336	warn "flushing outstanding aio requests";
		3337	for (;;) {
		3338	BDB::flush;
		3339	IO::AIO::flush;
		3340	Coro::cede;
		3341	last unless IO::AIO::nreqs || BDB::nreqs;
		3342	warn "iterate...";
		3343	}
		3344
		3345	++$RELOAD;
		3346
2333	warn "cancel all extension coros";	3347	warn "cancelling all extension coros";
2334	$_->cancel for values %EXT_CORO;	3348	$_->cancel for values %EXT_CORO;
2335	%EXT_CORO = ();	3349	%EXT_CORO = ();
2336		3350
2337	warn "remove commands";	3351	warn "removing commands";
2338	%COMMAND = ();	3352	%COMMAND = ();
2339		3353
2340	warn "remove ext commands";	3354	warn "removing ext/exti commands";
2341	%EXTCMD = ();	3355	%EXTCMD = ();
		3356	%EXTICMD = ();
2342		3357
2343	warn "unload/nuke all extensions";	3358	warn "unloading/nuking all extensions";
2344	for my $pkg (@EXTS) {	3359	for my $pkg (@EXTS) {
2345	warn "... unloading $pkg";	3360	warn "... unloading $pkg";
2346		3361
2347	if (my $cb = $pkg->can ("unload")) {	3362	if (my $cb = $pkg->can ("unload")) {
2348	eval {	3363	eval {
…		…
2353		3368
2354	warn "... nuking $pkg";	3369	warn "... nuking $pkg";
2355	Symbol::delete_package $pkg;	3370	Symbol::delete_package $pkg;
2356	}	3371	}
2357		3372
2358	warn "unload all perl modules loaded from $LIBDIR";	3373	warn "unloading all perl modules loaded from $LIBDIR";
2359	while (my ($k, $v) = each %INC) {	3374	while (my ($k, $v) = each %INC) {
2360	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3375	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2361		3376
2362	warn "removing <$k>";	3377	warn "... unloading $k";
2363	delete $INC{$k};	3378	delete $INC{$k};
2364		3379
2365	$k =~ s/\.pm$//;	3380	$k =~ s/\.pm$//;
2366	$k =~ s/\//::/g;	3381	$k =~ s/\//::/g;
2367		3382
…		…
2370	}	3385	}
2371		3386
2372	Symbol::delete_package $k;	3387	Symbol::delete_package $k;
2373	}	3388	}
2374		3389
2375	warn "get rid of safe::, as good as possible";	3390	warn "getting rid of safe::, as good as possible";
2376	Symbol::delete_package "safe::$_"	3391	Symbol::delete_package "safe::$_"
2377	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3392	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2378		3393
2379	warn "unload cf.pm \"a bit\"";	3394	warn "unloading cf.pm \"a bit\"";
2380	delete $INC{"cf.pm"};	3395	delete $INC{"cf.pm"};
		3396	delete $INC{"cf/pod.pm"};
2381		3397
2382	# don't, removes xs symbols, too,	3398	# don't, removes xs symbols, too,
2383	# and global variables created in xs	3399	# and global variables created in xs
2384	#Symbol::delete_package __PACKAGE__;	3400	#Symbol::delete_package __PACKAGE__;
2385		3401
		3402	warn "unload completed, starting to reload now";
		3403
2386	warn "reloading cf.pm";	3404	warn "reloading cf.pm";
2387	require cf;	3405	require cf;
2388	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3406	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2389		3407
2390	warn "load config and database again";	3408	warn "loading config and database again";
2391	cf::cfg_load;	3409	cf::reload_config;
2392	cf::db_load;
2393		3410
2394	warn "load extensions";	3411	warn "loading extensions";
2395	cf::load_extensions;	3412	cf::load_extensions;
2396		3413
2397	warn "reattach attachments to objects/players";	3414	warn "reattaching attachments to objects/players";
2398	_global_reattach;	3415	_global_reattach; # objects, sockets
2399	warn "reattach attachments to maps";	3416	warn "reattaching attachments to maps";
2400	reattach $_ for values %MAP;	3417	reattach $_ for values %MAP;
2401	};	3418	warn "reattaching attachments to players";
		3419	reattach $_ for values %PLAYER;
2402		3420
2403	if ($@) {	3421	warn "leaving sync_job";
		3422
		3423	1
		3424	} or do {
2404	warn $@;	3425	warn $@;
2405	warn "error while reloading, exiting.";	3426	warn "error while reloading, exiting.";
2406	exit 1;	3427	exit 1;
2407	}	3428	};
2408		3429
2409	warn "reloaded";	3430	warn "reloaded";
2410	};	3431	};
2411		3432
2412	#############################################################################	3433	our $RELOAD_WATCHER; # used only during reload
2413		3434
2414	unless ($LINK_MAP) {	3435	sub reload_perl() {
2415	$LINK_MAP = cf::map::new;	3436	# doing reload synchronously and two reloads happen back-to-back,
		3437	# coro crashes during coro_state_free->destroy here.
2416		3438
2417	$LINK_MAP->width (41);	3439	$RELOAD_WATCHER ||= Event->timer (
2418	$LINK_MAP->height (41);	3440	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,	3441	after => 0,
		3442	data => WF_AUTOCANCEL,
2427	cb => sub {	3443	cb => sub {
2428	$_[0]->w->cancel;	3444	do_reload_perl;
2429		3445	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	});	3446	},
2448		3447	);
2449	$LINK_MAP->{deny_save} = 1;
2450	$LINK_MAP->{deny_reset} = 1;
2451
2452	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2453	}	3448	}
2454		3449
2455	register_command "reload" => sub {	3450	register_command "reload" => sub {
2456	my ($who, $arg) = @_;	3451	my ($who, $arg) = @_;
2457		3452
2458	if ($who->flag (FLAG_WIZ)) {	3453	if ($who->flag (FLAG_WIZ)) {
2459	$who->message ("start of reload.");
2460	reload;
2461	$who->message ("end of reload.");	3454	$who->message ("reloading server.");
		3455	async {
		3456	$Coro::current->{desc} = "perl_reload";
		3457	reload_perl;
		3458	};
2462	}	3459	}
2463	};	3460	};
2464		3461
2465	unshift @INC, $LIBDIR;	3462	unshift @INC, $LIBDIR;
		3463
		3464	my $bug_warning = 0;
		3465
		3466	our @WAIT_FOR_TICK;
		3467	our @WAIT_FOR_TICK_BEGIN;
		3468
		3469	sub wait_for_tick {
		3470	return unless $TICK_WATCHER->is_active;
		3471	return if $Coro::current == $Coro::main;
		3472
		3473	my $signal = new Coro::Signal;
		3474	push @WAIT_FOR_TICK, $signal;
		3475	$signal->wait;
		3476	}
		3477
		3478	sub wait_for_tick_begin {
		3479	return unless $TICK_WATCHER->is_active;
		3480	return if $Coro::current == $Coro::main;
		3481
		3482	my $signal = new Coro::Signal;
		3483	push @WAIT_FOR_TICK_BEGIN, $signal;
		3484	$signal->wait;
		3485	}
2466		3486
2467	$TICK_WATCHER = Event->timer (	3487	$TICK_WATCHER = Event->timer (
2468	reentrant => 0,	3488	reentrant => 0,
		3489	parked => 1,
2469	prio => 0,	3490	prio => 0,
2470	at => $NEXT_TICK || $TICK,	3491	at => $NEXT_TICK || $TICK,
2471	data => WF_AUTOCANCEL,	3492	data => WF_AUTOCANCEL,
2472	cb => sub {	3493	cb => sub {
		3494	if ($Coro::current != $Coro::main) {
		3495	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3496	unless ++$bug_warning > 10;
		3497	return;
		3498	}
		3499
		3500	$NOW = $tick_start = Event::time;
		3501
2473	cf::server_tick; # one server iteration	3502	cf::server_tick; # one server iteration
		3503
2474	$RUNTIME += $TICK;	3504	$RUNTIME += $TICK;
2475	$NEXT_TICK += $TICK;	3505	$NEXT_TICK += $TICK;
2476		3506
2477	$WAIT_FOR_TICK->broadcast;	3507	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2478	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3508	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3509	Coro::async_pool {
		3510	$Coro::current->{desc} = "runtime saver";
		3511	write_runtime
		3512	or warn "ERROR: unable to write runtime file: $!";
		3513	};
		3514	}
		3515
		3516	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3517	$sig->send;
		3518	}
		3519	while (my $sig = shift @WAIT_FOR_TICK) {
		3520	$sig->send;
		3521	}
		3522
		3523	$NOW = Event::time;
2479		3524
2480	# if we are delayed by four ticks or more, skip them all	3525	# if we are delayed by four ticks or more, skip them all
2481	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3526	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2482		3527
2483	$TICK_WATCHER->at ($NEXT_TICK);	3528	$TICK_WATCHER->at ($NEXT_TICK);
2484	$TICK_WATCHER->start;	3529	$TICK_WATCHER->start;
		3530
		3531	$LOAD = ($NOW - $tick_start) / $TICK;
		3532	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3533
		3534	_post_tick;
2485	},	3535	},
2486	);	3536	);
2487		3537
		3538	{
		3539	BDB::min_parallel 8;
2488	IO::AIO::max_poll_time $TICK * 0.2;	3540	BDB::max_poll_time $TICK * 0.1;
2489		3541	$BDB_POLL_WATCHER = Event->io (
2490	Event->io (	3542	reentrant => 0,
2491	fd => IO::AIO::poll_fileno,	3543	fd => BDB::poll_fileno,
2492	poll => 'r',	3544	poll => 'r',
2493	prio => 5,	3545	prio => 0,
2494	data => WF_AUTOCANCEL,
2495	cb => \&IO::AIO::poll_cb,
2496	);
2497
2498	Event->timer (
2499	data => WF_AUTOCANCEL,	3546	data => WF_AUTOCANCEL,
		3547	cb => \&BDB::poll_cb,
		3548	);
		3549
		3550	BDB::set_sync_prepare {
		3551	my $status;
		3552	my $current = $Coro::current;
		3553	(
		3554	sub {
		3555	$status = $!;
		3556	$current->ready; undef $current;
		3557	},
		3558	sub {
		3559	Coro::schedule while defined $current;
		3560	$! = $status;
		3561	},
		3562	)
		3563	};
		3564
		3565	unless ($DB_ENV) {
		3566	$DB_ENV = BDB::db_env_create;
		3567	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3568	| BDB::LOG_AUTOREMOVE, 1);
		3569	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3570	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3571
		3572	cf::sync_job {
		3573	eval {
		3574	BDB::db_env_open
		3575	$DB_ENV,
		3576	$BDBDIR,
		3577	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3578	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3579	0666;
		3580
		3581	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3582	};
		3583
		3584	cf::cleanup "db_env_open(db): $@" if $@;
		3585	};
		3586	}
		3587
		3588	$BDB_DEADLOCK_WATCHER = Event->timer (
2500	after => 0,	3589	after => 3,
2501	interval => 10,	3590	interval => 1,
		3591	hard => 1,
		3592	prio => 0,
		3593	data => WF_AUTOCANCEL,
2502	cb => sub {	3594	cb => sub {
2503	(Coro::unblock_sub {	3595	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2504	write_runtime	3596	},
2505	or warn "ERROR: unable to write runtime file: $!";	3597	);
		3598	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3599	after => 11,
		3600	interval => 60,
		3601	hard => 1,
		3602	prio => 0,
		3603	data => WF_AUTOCANCEL,
		3604	cb => sub {
		3605	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3606	},
		3607	);
		3608	$BDB_TRICKLE_WATCHER = Event->timer (
		3609	after => 5,
		3610	interval => 10,
		3611	hard => 1,
		3612	prio => 0,
		3613	data => WF_AUTOCANCEL,
		3614	cb => sub {
		3615	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3616	},
		3617	);
		3618	}
		3619
		3620	{
		3621	IO::AIO::min_parallel 8;
		3622
		3623	undef $Coro::AIO::WATCHER;
		3624	IO::AIO::max_poll_time $TICK * 0.1;
		3625	$AIO_POLL_WATCHER = Event->io (
		3626	reentrant => 0,
		3627	data => WF_AUTOCANCEL,
		3628	fd => IO::AIO::poll_fileno,
		3629	poll => 'r',
		3630	prio => 0,
		3631	cb => \&IO::AIO::poll_cb,
		3632	);
		3633	}
		3634
		3635	my $_log_backtrace;
		3636
		3637	sub _log_backtrace {
		3638	my ($msg, @addr) = @_;
		3639
		3640	$msg =~ s/\n//;
		3641
		3642	# limit the # of concurrent backtraces
		3643	if ($_log_backtrace < 2) {
		3644	++$_log_backtrace;
		3645	async {
		3646	$Coro::current->{desc} = "abt $msg";
		3647
		3648	my @bt = fork_call {
		3649	@addr = map { sprintf "%x", $_ } @addr;
		3650	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3651	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3652	or die "addr2line: $!";
		3653
		3654	my @funcs;
		3655	my @res = <$fh>;
		3656	chomp for @res;
		3657	while (@res) {
		3658	my ($func, $line) = splice @res, 0, 2, ();
		3659	push @funcs, "[$func] $line";
		3660	}
		3661
		3662	@funcs
		3663	};
		3664
		3665	LOG llevInfo, "[ABT] $msg\n";
		3666	LOG llevInfo, "[ABT] $_\n" for @bt;
		3667	--$_log_backtrace;
2506	})->();	3668	};
		3669	} else {
		3670	LOG llevInfo, "[ABT] $msg\n";
		3671	LOG llevInfo, "[ABT] [suppressed]\n";
2507	},	3672	}
2508	);	3673	}
		3674
		3675	# load additional modules
		3676	use cf::pod;
2509		3677
2510	END { cf::emergency_save }	3678	END { cf::emergency_save }
2511		3679
2512	1	3680	1
2513		3681

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