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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.165 by root, Fri Jan 12 22:09:22 2007 UTC vs.
Revision 1.370 by root, Thu Sep 13 10:59:41 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_CHECKPOINT_WATCHER;
		86	our $BDB_TRICKLE_WATCHER;
		87	our $DB_ENV;
51		88
52	our %CFG;	89	our %CFG;
53		90
54	our $UPTIME; $UPTIME ||= time;	91	our $UPTIME; $UPTIME ||= time;
55	our $RUNTIME;	92	our $RUNTIME;
56		93
57	our %PLAYER; # all users	94	our (%PLAYER, %PLAYER_LOADING); # all users
58	our %MAP; # all maps	95	our (%MAP, %MAP_LOADING ); # all maps
59	our $LINK_MAP; # the special {link} map	96	our $LINK_MAP; # the special {link} map, which is always available
60	our $RANDOM_MAPS = cf::localdir . "/random";
61		97
62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	98	# 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;	99	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		100
		101	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		102	our $LOADAVG; # same thing, but with alpha-smoothing
		103	our $tick_start; # for load detecting purposes
64		104
65	binmode STDOUT;	105	binmode STDOUT;
66	binmode STDERR;	106	binmode STDERR;
67		107
68	# read virtual server time, if available	108	# read virtual server time, if available
69	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	109	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
70	open my $fh, "<", cf::localdir . "/runtime"	110	open my $fh, "<", "$LOCALDIR/runtime"
71	or die "unable to read runtime file: $!";	111	or die "unable to read runtime file: $!";
72	$RUNTIME = <$fh> + 0.;	112	$RUNTIME = <$fh> + 0.;
73	}	113	}
74		114
75	mkdir cf::localdir;	115	mkdir $_
76	mkdir cf::localdir . "/" . cf::playerdir;	116	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
77	mkdir cf::localdir . "/" . cf::tmpdir;
78	mkdir cf::localdir . "/" . cf::uniquedir;
79	mkdir $RANDOM_MAPS;
80		117
81	# a special map that is always available
82	our $LINK_MAP;
83	our $EMERGENCY_POSITION;	118	our $EMERGENCY_POSITION;
		119
		120	sub cf::map::normalise;
84		121
85	#############################################################################	122	#############################################################################
86		123
87	=head2 GLOBAL VARIABLES	124	=head2 GLOBAL VARIABLES
88		125
…		…
95	=item $cf::RUNTIME	132	=item $cf::RUNTIME
96		133
97	The time this server has run, starts at 0 and is increased by $cf::TICK on	134	The time this server has run, starts at 0 and is increased by $cf::TICK on
98	every server tick.	135	every server tick.
99		136
100	=item $cf::LIBDIR	137	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		138	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		139	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
101		140
102	The perl library directory, where extensions and cf-specific modules can	141	Various directories - "/etc", read-only install directory, perl-library
103	be found. It will be added to C<@INC> automatically.	142	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		143	unique-items directory, player file directory, random maps directory and
		144	database environment.
104		145
105	=item $cf::NOW	146	=item $cf::NOW
106		147
107	The time of the last (current) server tick.	148	The time of the last (current) server tick.
108		149
109	=item $cf::TICK	150	=item $cf::TICK
110		151
111	The interval between server ticks, in seconds.	152	The interval between server ticks, in seconds.
		153
		154	=item $cf::LOADAVG
		155
		156	The current CPU load on the server (alpha-smoothed), as a value between 0
		157	(none) and 1 (overloaded), indicating how much time is spent on processing
		158	objects per tick. Healthy values are < 0.5.
		159
		160	=item $cf::LOAD
		161
		162	The raw value load value from the last tick.
112		163
113	=item %cf::CFG	164	=item %cf::CFG
114		165
115	Configuration for the server, loaded from C</etc/crossfire/config>, or	166	Configuration for the server, loaded from C</etc/crossfire/config>, or
116	from wherever your confdir points to.	167	from wherever your confdir points to.
117		168
118	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	169	=item cf::wait_for_tick, cf::wait_for_tick_begin
119		170
120	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	171	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	172	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	173	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.	174
		175	=item @cf::INVOKE_RESULTS
		176
		177	This array contains the results of the last C<invoke ()> call. When
		178	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		179	that call.
124		180
125	=back	181	=back
126		182
127	=cut	183	=cut
128		184
129	BEGIN {	185	BEGIN {
130	*CORE::GLOBAL::warn = sub {	186	*CORE::GLOBAL::warn = sub {
131	my $msg = join "", @_;	187	my $msg = join "", @_;
132	utf8::encode $msg;
133		188
134	$msg .= "\n"	189	$msg .= "\n"
135	unless $msg =~ /\n$/;	190	unless $msg =~ /\n$/;
		191
		192	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
136		193
137	LOG llevError, $msg;	194	LOG llevError, $msg;
138	};	195	};
139	}	196	}
140		197
141	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	198	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
142	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	199	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
143	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	200	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
144	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	201	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
145	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	202	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		203	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
146	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	204	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
147		205
148	# we bless all objects into (empty) derived classes to force a method lookup	206	# we bless all objects into (empty) derived classes to force a method lookup
149	# within the Safe compartment.	207	# within the Safe compartment.
150	for my $pkg (qw(	208	for my $pkg (qw(
151	cf::global cf::attachable	209	cf::global cf::attachable
…		…
159	}	217	}
160		218
161	$Event::DIED = sub {	219	$Event::DIED = sub {
162	warn "error in event callback: @_";	220	warn "error in event callback: @_";
163	};	221	};
		222
		223	#############################################################################
164		224
165	=head2 UTILITY FUNCTIONS	225	=head2 UTILITY FUNCTIONS
166		226
167	=over 4	227	=over 4
168		228
…		…
187	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	247	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
188	$d	248	$d
189	} || "[unable to dump $_[0]: '$@']";	249	} || "[unable to dump $_[0]: '$@']";
190	}	250	}
191		251
192	use JSON::Syck (); # TODO# replace by JSON::PC once working
193
194	=item $ref = cf::from_json $json	252	=item $ref = cf::from_json $json
195		253
196	Converts a JSON string into the corresponding perl data structure.	254	Converts a JSON string into the corresponding perl data structure.
197		255
198	=cut
199
200	sub from_json($) {
201	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
202	JSON::Syck::Load $_[0]
203	}
204
205	=item $json = cf::to_json $ref	256	=item $json = cf::to_json $ref
206		257
207	Converts a perl data structure into its JSON representation.	258	Converts a perl data structure into its JSON representation.
208		259
209	=cut	260	=cut
210		261
211	sub to_json($) {	262	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
212	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	263
213	JSON::Syck::Dump $_[0]	264	sub to_json ($) { $json_coder->encode ($_[0]) }
214	}	265	sub from_json ($) { $json_coder->decode ($_[0]) }
215		266
216	=item cf::lock_wait $string	267	=item cf::lock_wait $string
217		268
218	Wait until the given lock is available. See cf::lock_acquire.	269	Wait until the given lock is available. See cf::lock_acquire.
219		270
…		…
222	Wait until the given lock is available and then acquires it and returns	273	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,	274	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	275	for example when the coroutine gets canceled), the lock is automatically
225	returned.	276	returned.
226		277
		278	Locks are *not* recursive, locking from the same coro twice results in a
		279	deadlocked coro.
		280
227	Lock names should begin with a unique identifier (for example, cf::map::find	281	Lock names should begin with a unique identifier (for example, cf::map::find
228	uses map_find and cf::map::load uses map_load).	282	uses map_find and cf::map::load uses map_load).
229		283
		284	=item $locked = cf::lock_active $string
		285
		286	Return true if the lock is currently active, i.e. somebody has locked it.
		287
230	=cut	288	=cut
231		289
232	our %LOCK;	290	our %LOCK;
		291	our %LOCKER;#d#
233		292
234	sub lock_wait($) {	293	sub lock_wait($) {
235	my ($key) = @_;	294	my ($key) = @_;
		295
		296	if ($LOCKER{$key} == $Coro::current) {#d#
		297	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		298	return;#d#
		299	}#d#
236		300
237	# wait for lock, if any	301	# wait for lock, if any
238	while ($LOCK{$key}) {	302	while ($LOCK{$key}) {
239	push @{ $LOCK{$key} }, $Coro::current;	303	push @{ $LOCK{$key} }, $Coro::current;
240	Coro::schedule;	304	Coro::schedule;
…		…
246		310
247	# wait, to be sure we are not locked	311	# wait, to be sure we are not locked
248	lock_wait $key;	312	lock_wait $key;
249		313
250	$LOCK{$key} = [];	314	$LOCK{$key} = [];
		315	$LOCKER{$key} = $Coro::current;#d#
251		316
252	Coro::guard {	317	Coro::guard {
		318	delete $LOCKER{$key};#d#
253	# wake up all waiters, to be on the safe side	319	# wake up all waiters, to be on the safe side
254	$_->ready for @{ delete $LOCK{$key} };	320	$_->ready for @{ delete $LOCK{$key} };
255	}	321	}
256	}	322	}
257		323
		324	sub lock_active($) {
		325	my ($key) = @_;
		326
		327	! ! $LOCK{$key}
		328	}
		329
258	sub freeze_mainloop {	330	sub freeze_mainloop {
259	return unless $TICK_WATCHER->is_active;	331	return unless $TICK_WATCHER->is_active;
260		332
261	my $guard = Coro::guard { $TICK_WATCHER->start };	333	my $guard = Coro::guard {
		334	$TICK_WATCHER->start;
		335	};
262	$TICK_WATCHER->stop;	336	$TICK_WATCHER->stop;
263	$guard	337	$guard
		338	}
		339
		340	=item cf::get_slot $time[, $priority[, $name]]
		341
		342	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		343	This call blocks and returns only when you have at least C<$time> seconds
		344	of cpu time till the next tick. The slot is only valid till the next cede.
		345
		346	The optional C<$name> can be used to identify the job to run. It might be
		347	used for statistical purposes and should identify the same time-class.
		348
		349	Useful for short background jobs.
		350
		351	=cut
		352
		353	our @SLOT_QUEUE;
		354	our $SLOT_QUEUE;
		355
		356	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		357	$SLOT_QUEUE = Coro::async {
		358	my $signal = new Coro::Signal;
		359
		360	while () {
		361	next_job:
		362	my $avail = cf::till_tick;
		363	if ($avail > 0.01) {
		364	for (0 .. $#SLOT_QUEUE) {
		365	if ($SLOT_QUEUE[$_][0] < $avail) {
		366	my $job = splice @SLOT_QUEUE, $_, 1, ();
		367	$job->[2]->send;
		368	Coro::cede;
		369	goto next_job;
		370	}
		371	}
		372	}
		373
		374	if (@SLOT_QUEUE) {
		375	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		376	push @cf::WAIT_FOR_TICK, $signal;
		377	$signal->wait;
		378	} else {
		379	Coro::schedule;
		380	}
		381	}
		382	};
		383
		384	sub get_slot($;$$) {
		385	my ($time, $pri, $name) = @_;
		386
		387	$time = $TICK * .6 if $time > $TICK * .6;
		388	my $sig = new Coro::Signal;
		389
		390	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		391	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		392	$SLOT_QUEUE->ready;
		393	$sig->wait;
264	}	394	}
265		395
266	=item cf::async { BLOCK }	396	=item cf::async { BLOCK }
267		397
268	Currently the same as Coro::async_pool, meaning you cannot use	398	Currently the same as Coro::async_pool, meaning you cannot use
…		…
273		403
274	BEGIN { *async = \&Coro::async_pool }	404	BEGIN { *async = \&Coro::async_pool }
275		405
276	=item cf::sync_job { BLOCK }	406	=item cf::sync_job { BLOCK }
277		407
278	The design of crossfire+ requires that the main coro ($Coro::main) is	408	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	409	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.	410	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		411	acceptable.
281		412
282	If it must be done, put the blocking parts into C<sync_job>. This will run	413	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	414	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	415	server will be frozen during this time, so the block should either finish
285	fast or be very important.	416	fast or be very important.
…		…
288		419
289	sub sync_job(&) {	420	sub sync_job(&) {
290	my ($job) = @_;	421	my ($job) = @_;
291		422
292	if ($Coro::current == $Coro::main) {	423	if ($Coro::current == $Coro::main) {
		424	my $time = Event::time;
		425
293	# this is the main coro, too bad, we have to block	426	# this is the main coro, too bad, we have to block
294	# till the operation succeeds, freezing the server :/	427	# till the operation succeeds, freezing the server :/
295		428
296	# TODO: use suspend/resume instead	429	# TODO: use suspend/resume instead
297	# (but this is cancel-safe)	430	# (but this is cancel-safe)
…		…
308		441
309	while ($busy) {	442	while ($busy) {
310	Coro::cede or Event::one_event;	443	Coro::cede or Event::one_event;
311	}	444	}
312		445
		446	$time = Event::time - $time;
		447
		448	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		449	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		450
		451	$tick_start += $time; # do not account sync jobs to server load
		452
313	wantarray ? @res : $res[0]	453	wantarray ? @res : $res[0]
314	} else {	454	} else {
315	# we are in another coroutine, how wonderful, everything just works	455	# we are in another coroutine, how wonderful, everything just works
316		456
317	$job->()	457	$job->()
…		…
336	$EXT_CORO{$coro+0} = $coro;	476	$EXT_CORO{$coro+0} = $coro;
337		477
338	$coro	478	$coro
339	}	479	}
340		480
341	sub write_runtime {	481	=item fork_call { }, $args
342	my $runtime = cf::localdir . "/runtime";
343		482
344	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	483	Executes the given code block with the given arguments in a seperate
345	or return;	484	process, returning the results. Everything must be serialisable with
		485	Coro::Storable. May, of course, block. Note that the executed sub may
		486	never block itself or use any form of Event handling.
346		487
347	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	488	=cut
348	(aio_write $fh, 0, (length $value), $value, 0) <= 0
349	and return;
350		489
351	aio_fsync $fh	490	sub fork_call(&@) {
352	and return;	491	my ($cb, @args) = @_;
353		492
354	close $fh	493	# we seemingly have to make a local copy of the whole thing,
355	or return;	494	# otherwise perl prematurely frees the stuff :/
		495	# TODO: investigate and fix (likely this will be rather laborious)
356		496
357	aio_rename "$runtime~", $runtime	497	my @res = Coro::Util::fork_eval {
358	and return;	498	reset_signals;
		499	&$cb
		500	}, @args;
359		501
		502	wantarray ? @res : $res[-1]
		503	}
		504
		505	=item $value = cf::db_get $family => $key
		506
		507	Returns a single value from the environment database.
		508
		509	=item cf::db_put $family => $key => $value
		510
		511	Stores the given C<$value> in the family. It can currently store binary
		512	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		513
		514	=item $db = cf::db_table "name"
		515
		516	Create and/or open a new database table. The string must not be "db" and must be unique
		517	within each server.
		518
		519	=cut
		520
		521	sub db_table($) {
		522	my ($name) = @_;
		523	my $db = BDB::db_create $DB_ENV;
		524
		525	eval {
		526	$db->set_flags (BDB::CHKSUM);
		527
		528	utf8::encode $name;
		529	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		530	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		531	cf::cleanup "db_open(db): $!" if $!;
		532	};
		533	cf::cleanup "db_open(db): $@" if $@;
		534
		535	$db
		536	}
		537
		538	our $DB;
		539
		540	sub db_init {
		541	cf::sync_job {
		542	$DB ||= db_table "db";
		543	};
		544	}
		545
		546	sub db_get($$) {
		547	my $key = "$_[0]/$_[1]";
		548
		549	cf::sync_job {
		550	BDB::db_get $DB, undef, $key, my $data;
		551
		552	$! ? ()
		553	: $data
360	1	554	}
		555	}
		556
		557	sub db_put($$$) {
		558	BDB::dbreq_pri 4;
		559	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		560	}
		561
		562	=item cf::cache $id => [$paths...], $processversion => $process
		563
		564	Generic caching function that returns the value of the resource $id,
		565	caching and regenerating as required.
		566
		567	This function can block.
		568
		569	=cut
		570
		571	sub cache {
		572	my ($id, $src, $processversion, $process) = @_;
		573
		574	my $meta =
		575	join "\x00",
		576	$processversion,
		577	map {
		578	aio_stat $_
		579	and Carp::croak "$_: $!";
		580
		581	($_, (stat _)[7,9])
		582	} @$src;
		583
		584	my $dbmeta = db_get cache => "$id/meta";
		585	if ($dbmeta ne $meta) {
		586	# changed, we may need to process
		587
		588	my @data;
		589	my $md5;
		590
		591	for (0 .. $#$src) {
		592	0 <= aio_load $src->[$_], $data[$_]
		593	or Carp::croak "$src->[$_]: $!";
		594	}
		595
		596	# if processing is expensive, check
		597	# checksum first
		598	if (1) {
		599	$md5 =
		600	join "\x00",
		601	$processversion,
		602	map {
		603	cf::cede_to_tick;
		604	($src->[$_], Digest::MD5::md5_hex $data[$_])
		605	} 0.. $#$src;
		606
		607
		608	my $dbmd5 = db_get cache => "$id/md5";
		609	if ($dbmd5 eq $md5) {
		610	db_put cache => "$id/meta", $meta;
		611
		612	return db_get cache => "$id/data";
		613	}
		614	}
		615
		616	my $t1 = Time::HiRes::time;
		617	my $data = $process->(\@data);
		618	my $t2 = Time::HiRes::time;
		619
		620	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		621
		622	db_put cache => "$id/data", $data;
		623	db_put cache => "$id/md5" , $md5;
		624	db_put cache => "$id/meta", $meta;
		625
		626	return $data;
		627	}
		628
		629	db_get cache => "$id/data"
		630	}
		631
		632	=item cf::datalog type => key => value, ...
		633
		634	Log a datalog packet of the given type with the given key-value pairs.
		635
		636	=cut
		637
		638	sub datalog($@) {
		639	my ($type, %kv) = @_;
		640	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
361	}	641	}
362		642
363	=back	643	=back
364		644
365	=cut	645	=cut
366
367	#############################################################################
368
369	package cf::path;
370
371	use overload
372	'""' => \&as_string;
373
374	# used to convert map paths into valid unix filenames by repalcing / by ∕
375	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
376
377	sub register {
378	my ($pkg, $prefix) = @_;
379
380	$EXT_MAP{$prefix} = $pkg;
381	}
382
383	sub new {
384	my ($class, $path, $base) = @_;
385
386	return $path if ref $path;
387
388	my $self = {};
389
390	# {... are special paths that are not being touched
391	# ?xxx/... are special absolute paths
392	# ?random/... random maps
393	# /! non-realised random map exit
394	# /... normal maps
395	# ~/... per-player maps without a specific player (DO NOT USE)
396	# ~user/... per-player map of a specific user
397
398	$path =~ s/$PATH_SEP/\//go;
399
400	if ($path =~ /^{/) {
401	# fine as it is
402	} else {
403	if ($path =~ s{^~([^/]+)?}{}) {
404	# ~user
405	$self->{user_rel} = 1;
406
407	if (defined $1) {
408	$self->{user} = $1;
409	} elsif ($base =~ m{^~([^/]+)/}) {
410	$self->{user} = $1;
411	} else {
412	warn "cannot resolve user-relative path without user <$path,$base>\n";
413	}
414	} elsif ($path =~ s{^\?([^/]+)/}{}) {
415	# ?...
416	$self->{ext} = $1;
417	if (my $ext = $EXT_MAP{$1}) {
418	bless $self, $ext;
419	}
420	} elsif ($path =~ /^\//) {
421	# /...
422	# already absolute
423	} else {
424	# relative
425	$base =~ s{[^/]+/?$}{};
426	return $class->new ("$base/$path");
427	}
428
429	for ($path) {
430	redo if s{/\.?/}{/};
431	redo if s{/[^/]+/\.\./}{/};
432	}
433	}
434
435	$self->{path} = $path;
436
437	if ("HASH" eq ref $self) {
438	bless $self, $class;
439	} else {
440	$self->init;
441	}
442
443	for my $ext (values %EXT_MAP) {
444	if (my $subst = $ext->substitute ($self)) {
445	return $subst;
446	}
447	}
448
449	$self
450	}
451
452	sub init {
453	# nop
454	}
455
456	sub substitute {
457	()
458	}
459
460	# the name / primary key / in-game path
461	sub as_string {
462	my ($self) = @_;
463
464	$self->{user_rel} ? "~$self->{user}$self->{path}"
465	: $self->{ext} ? "?$self->{ext}/$self->{path}"
466	: $self->{path}
467	}
468
469	# the displayed name, this is a one way mapping
470	sub visible_name {
471	&as_string
472	}
473
474	# escape the /'s in the path
475	sub _escaped_path {
476	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
477
478	$path
479	}
480
481	# the original (read-only) location
482	sub load_path {
483	my ($self) = @_;
484
485	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
486	}
487
488	# the temporary/swap location
489	sub save_path {
490	my ($self) = @_;
491
492	$self->{user_rel}
493	? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
494	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
495	}
496
497	# the unique path, undef == no special unique path
498	sub uniq_path {
499	my ($self) = @_;
500
501	$self->{user_rel} || $self->{ext}
502	? undef
503	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
504	}
505
506	sub customise_for {
507	my ($self, $map, $ob) = @_;
508
509	if ($map->per_player) {
510	return cf::map::find ("~" . $ob->name . "/" . $map->{path}{path});
511	}
512
513	$map
514	}
515
516	# this is somewhat ugly, but style maps do need special treatment
517	sub is_style_map {
518	$_[0]{path} =~ m{^/styles/}
519	}
520
521	sub load_orig {
522	my ($self) = @_;
523
524	&cf::map::load_map_header ($self->load_path)
525	}
526
527	sub load_temp {
528	my ($self) = @_;
529
530	&cf::map::load_map_header ($self->save_path)
531	}
532
533	sub unlink_save {
534	my ($self) = @_;
535
536	utf8::encode (my $save = $self->save_path);
537	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;
538	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";
539	}
540
541	package cf;
542		646
543	#############################################################################	647	#############################################################################
544		648
545	=head2 ATTACHABLE OBJECTS	649	=head2 ATTACHABLE OBJECTS
546		650
…		…
548	attach callbacks/event handlers (a collection of which is called an "attachment")	652	attach callbacks/event handlers (a collection of which is called an "attachment")
549	to it. All such attachable objects support the following methods.	653	to it. All such attachable objects support the following methods.
550		654
551	In the following description, CLASS can be any of C<global>, C<object>	655	In the following description, CLASS can be any of C<global>, C<object>
552	C<player>, C<client> or C<map> (i.e. the attachable objects in	656	C<player>, C<client> or C<map> (i.e. the attachable objects in
553	crossfire+).	657	Crossfire TRT).
554		658
555	=over 4	659	=over 4
556		660
557	=item $attachable->attach ($attachment, key => $value...)	661	=item $attachable->attach ($attachment, key => $value...)
558		662
…		…
672	our @CB_TYPE = (); # registry for type (cf-object class) based events	776	our @CB_TYPE = (); # registry for type (cf-object class) based events
673	our @CB_MAP = ();	777	our @CB_MAP = ();
674		778
675	my %attachment;	779	my %attachment;
676		780
		781	sub cf::attachable::thawer_merge {
		782	# simply override everything except _meta
		783	local $_[0]{_meta};
		784	%{$_[0]} = %{$_[1]};
		785	}
		786
677	sub _attach_cb($$$$) {	787	sub _attach_cb($$$$) {
678	my ($registry, $event, $prio, $cb) = @_;	788	my ($registry, $event, $prio, $cb) = @_;
679		789
680	use sort 'stable';	790	use sort 'stable';
681		791
…		…
715	$registry = $CB_TYPE[$object_type] ||= [];	825	$registry = $CB_TYPE[$object_type] ||= [];
716		826
717	} elsif ($type eq "subtype") {	827	} elsif ($type eq "subtype") {
718	defined $object_type or Carp::croak "subtype specified without type";	828	defined $object_type or Carp::croak "subtype specified without type";
719	my $object_subtype = shift @arg;	829	my $object_subtype = shift @arg;
720	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	830	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
721		831
722	} elsif ($type eq "package") {	832	} elsif ($type eq "package") {
723	my $pkg = shift @arg;	833	my $pkg = shift @arg;
724		834
725	while (my ($name, $id) = each %cb_id) {	835	while (my ($name, $id) = each %cb_id) {
…		…
754	_attach $registry, $klass, @attach;	864	_attach $registry, $klass, @attach;
755	}	865	}
756		866
757	$obj->{$name} = \%arg;	867	$obj->{$name} = \%arg;
758	} else {	868	} else {
759	warn "object uses attachment '$name' that is not available, postponing.\n";	869	warn "object uses attachment '$name' which is not available, postponing.\n";
760	}	870	}
761		871
762	$obj->{_attachment}{$name} = undef;	872	$obj->{_attachment}{$name} = undef;
763	}	873	}
764		874
…		…
766	if (ref $_[0]) {	876	if (ref $_[0]) {
767	_object_attach @_;	877	_object_attach @_;
768	} else {	878	} else {
769	_attach shift->_attach_registry, @_;	879	_attach shift->_attach_registry, @_;
770	}	880	}
		881	_recalc_want;
771	};	882	};
772		883
773	# all those should be optimised	884	# all those should be optimised
774	sub cf::attachable::detach {	885	sub cf::attachable::detach {
775	my ($obj, $name) = @_;	886	my ($obj, $name) = @_;
…		…
778	delete $obj->{_attachment}{$name};	889	delete $obj->{_attachment}{$name};
779	reattach ($obj);	890	reattach ($obj);
780	} else {	891	} else {
781	Carp::croak "cannot, currently, detach class attachments";	892	Carp::croak "cannot, currently, detach class attachments";
782	}	893	}
		894	_recalc_want;
783	};	895	};
784		896
785	sub cf::attachable::attached {	897	sub cf::attachable::attached {
786	my ($obj, $name) = @_;	898	my ($obj, $name) = @_;
787		899
…		…
802	";	914	";
803	die if $@;	915	die if $@;
804	}	916	}
805		917
806	our $override;	918	our $override;
807	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	919	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
808		920
809	sub override {	921	sub override {
810	$override = 1;	922	$override = 1;
811	@invoke_results = ();	923	@INVOKE_RESULTS = (@_);
812	}	924	}
813		925
814	sub do_invoke {	926	sub do_invoke {
815	my $event = shift;	927	my $event = shift;
816	my $callbacks = shift;	928	my $callbacks = shift;
817		929
818	@invoke_results = ();	930	@INVOKE_RESULTS = ();
819		931
820	local $override;	932	local $override;
821		933
822	for (@$callbacks) {	934	for (@$callbacks) {
823	eval { &{$_->[1]} };	935	eval { &{$_->[1]} };
…		…
840		952
841	Generate an object-specific event with the given arguments.	953	Generate an object-specific event with the given arguments.
842		954
843	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	955	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
844	removed in future versions), and there is no public API to access override	956	removed in future versions), and there is no public API to access override
845	results (if you must, access C<@cf::invoke_results> directly).	957	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
846		958
847	=back	959	=back
848		960
849	=cut	961	=cut
850		962
851	#############################################################################	963	#############################################################################
852	# object support	964	# object support
		965	#
		966
		967	sub _can_merge {
		968	my ($ob1, $ob2) = @_;
		969
		970	local $Storable::canonical = 1;
		971	my $fob1 = Storable::freeze $ob1;
		972	my $fob2 = Storable::freeze $ob2;
		973
		974	$fob1 eq $fob2
		975	}
853		976
854	sub reattach {	977	sub reattach {
855	# basically do the same as instantiate, without calling instantiate	978	# basically do the same as instantiate, without calling instantiate
856	my ($obj) = @_;	979	my ($obj) = @_;
		980
		981	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
857		982
858	my $registry = $obj->registry;	983	my $registry = $obj->registry;
859		984
860	@$registry = ();	985	@$registry = ();
861		986
…		…
900	);	1025	);
901		1026
902	sub object_freezer_save {	1027	sub object_freezer_save {
903	my ($filename, $rdata, $objs) = @_;	1028	my ($filename, $rdata, $objs) = @_;
904		1029
		1030	my $guard = cf::lock_acquire "io";
		1031
905	sync_job {	1032	sync_job {
906	if (length $$rdata) {	1033	if (length $$rdata) {
		1034	utf8::decode (my $decname = $filename);
907	warn sprintf "saving %s (%d,%d)\n",	1035	warn sprintf "saving %s (%d,%d)\n",
908	$filename, length $$rdata, scalar @$objs;	1036	$decname, length $$rdata, scalar @$objs;
909		1037
910	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1038	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
911	chmod SAVE_MODE, $fh;	1039	chmod SAVE_MODE, $fh;
912	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1040	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
913	aio_fsync $fh;	1041	aio_fsync $fh if $cf::USE_FSYNC;
914	close $fh;	1042	close $fh;
915		1043
916	if (@$objs) {	1044	if (@$objs) {
917	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1045	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
918	chmod SAVE_MODE, $fh;	1046	chmod SAVE_MODE, $fh;
919	my $data = Storable::nfreeze { version => 1, objs => $objs };	1047	my $data = Storable::nfreeze { version => 1, objs => $objs };
920	aio_write $fh, 0, (length $data), $data, 0;	1048	aio_write $fh, 0, (length $data), $data, 0;
921	aio_fsync $fh;	1049	aio_fsync $fh if $cf::USE_FSYNC;
922	close $fh;	1050	close $fh;
923	aio_rename "$filename.pst~", "$filename.pst";	1051	aio_rename "$filename.pst~", "$filename.pst";
924	}	1052	}
925	} else {	1053	} else {
926	aio_unlink "$filename.pst";	1054	aio_unlink "$filename.pst";
…		…
932	}	1060	}
933	} else {	1061	} else {
934	aio_unlink $filename;	1062	aio_unlink $filename;
935	aio_unlink "$filename.pst";	1063	aio_unlink "$filename.pst";
936	}	1064	}
937	}	1065	};
		1066
		1067	undef $guard;
938	}	1068	}
939		1069
940	sub object_freezer_as_string {	1070	sub object_freezer_as_string {
941	my ($rdata, $objs) = @_;	1071	my ($rdata, $objs) = @_;
942		1072
…		…
947		1077
948	sub object_thawer_load {	1078	sub object_thawer_load {
949	my ($filename) = @_;	1079	my ($filename) = @_;
950		1080
951	my ($data, $av);	1081	my ($data, $av);
		1082
		1083	my $guard = cf::lock_acquire "io";
952		1084
953	(aio_load $filename, $data) >= 0	1085	(aio_load $filename, $data) >= 0
954	or return;	1086	or return;
955		1087
956	unless (aio_stat "$filename.pst") {	1088	unless (aio_stat "$filename.pst") {
957	(aio_load "$filename.pst", $av) >= 0	1089	(aio_load "$filename.pst", $av) >= 0
958	or return;	1090	or return;
		1091
		1092	undef $guard;
959	$av = eval { (Storable::thaw $av)->{objs} };	1093	$av = eval { (Storable::thaw $av)->{objs} };
960	}	1094	}
961		1095
		1096	utf8::decode (my $decname = $filename);
962	warn sprintf "loading %s (%d)\n",	1097	warn sprintf "loading %s (%d,%d)\n",
963	$filename, length $data, scalar @{$av || []};#d#	1098	$decname, length $data, scalar @{$av || []};
		1099
964	return ($data, $av);	1100	($data, $av)
965	}	1101	}
		1102
		1103	=head2 COMMAND CALLBACKS
		1104
		1105	=over 4
		1106
		1107	=cut
966		1108
967	#############################################################################	1109	#############################################################################
968	# command handling &c	1110	# command handling &c
969		1111
970	=item cf::register_command $name => \&callback($ob,$args);	1112	=item cf::register_command $name => \&callback($ob,$args);
…		…
983	push @{ $COMMAND{$name} }, [$caller, $cb];	1125	push @{ $COMMAND{$name} }, [$caller, $cb];
984	}	1126	}
985		1127
986	=item cf::register_extcmd $name => \&callback($pl,$packet);	1128	=item cf::register_extcmd $name => \&callback($pl,$packet);
987		1129
988	Register a callbackf ro execution when the client sends an extcmd packet.	1130	Register a callback for execution when the client sends an (synchronous)
		1131	extcmd packet. Ext commands will be processed in the order they are
		1132	received by the server, like other user commands. The first argument is
		1133	the logged-in player. Ext commands can only be processed after a player
		1134	has logged in successfully.
989		1135
990	If the callback returns something, it is sent back as if reply was being	1136	If the callback returns something, it is sent back as if reply was being
991	called.	1137	called.
992		1138
		1139	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1140
		1141	Register a callback for execution when the client sends an (asynchronous)
		1142	exticmd packet. Exti commands are processed by the server as soon as they
		1143	are received, i.e. out of order w.r.t. other commands. The first argument
		1144	is a client socket. Exti commands can be received anytime, even before
		1145	log-in.
		1146
		1147	If the callback returns something, it is sent back as if reply was being
		1148	called.
		1149
993	=cut	1150	=cut
994		1151
995	sub register_extcmd {	1152	sub register_extcmd {
996	my ($name, $cb) = @_;	1153	my ($name, $cb) = @_;
997		1154
998	$EXTCMD{$name} = $cb;	1155	$EXTCMD{$name} = $cb;
		1156	}
		1157
		1158	sub register_exticmd {
		1159	my ($name, $cb) = @_;
		1160
		1161	$EXTICMD{$name} = $cb;
999	}	1162	}
1000		1163
1001	cf::player->attach (	1164	cf::player->attach (
1002	on_command => sub {	1165	on_command => sub {
1003	my ($pl, $name, $params) = @_;	1166	my ($pl, $name, $params) = @_;
…		…
1012	cf::override;	1175	cf::override;
1013	},	1176	},
1014	on_extcmd => sub {	1177	on_extcmd => sub {
1015	my ($pl, $buf) = @_;	1178	my ($pl, $buf) = @_;
1016		1179
1017	my $msg = eval { from_json $buf };	1180	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
1018		1181
1019	if (ref $msg) {	1182	if (ref $msg) {
		1183	my ($type, $reply, @payload) =
		1184	"ARRAY" eq ref $msg
		1185	? @$msg
		1186	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1187
		1188	my @reply;
		1189
1020	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1190	if (my $cb = $EXTCMD{$type}) {
1021	if (my %reply = $cb->($pl, $msg)) {	1191	@reply = $cb->($pl, @payload);
1022	$pl->ext_reply ($msg->{msgid}, %reply);
1023	}
1024	}	1192	}
		1193
		1194	$pl->ext_reply ($reply, @reply)
		1195	if $reply;
		1196
1025	} else {	1197	} else {
1026	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1198	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
1027	}	1199	}
1028		1200
1029	cf::override;	1201	cf::override;
1030	},	1202	},
1031	);	1203	);
1032		1204
1033	sub load_extension {
1034	my ($path) = @_;
1035
1036	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
1037	my $base = $1;
1038	my $pkg = $1;
1039	$pkg =~ s/[^[:word:]]/_/g;
1040	$pkg = "ext::$pkg";
1041
1042	warn "... loading '$path' into '$pkg'\n";
1043
1044	open my $fh, "<:utf8", $path
1045	or die "$path: $!";
1046
1047	my $source =
1048	"package $pkg; use strict; use utf8;\n"
1049	. "#line 1 \"$path\"\n{\n"
1050	. (do { local $/; <$fh> })
1051	. "\n};\n1";
1052
1053	eval $source
1054	or die $@ ? "$path: $@\n"
1055	: "extension disabled.\n";
1056
1057	push @EXTS, $pkg;
1058	}
1059
1060	sub load_extensions {	1205	sub load_extensions {
		1206	cf::sync_job {
		1207	my %todo;
		1208
1061	for my $ext (<$LIBDIR/*.ext>) {	1209	for my $path (<$LIBDIR/*.ext>) {
1062	next unless -r $ext;	1210	next unless -r $path;
1063	eval {	1211
1064	load_extension $ext;	1212	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1213	my $base = $1;
		1214	my $pkg = $1;
		1215	$pkg =~ s/[^[:word:]]/_/g;
		1216	$pkg = "ext::$pkg";
		1217
		1218	open my $fh, "<:utf8", $path
		1219	or die "$path: $!";
		1220
		1221	my $source = do { local $/; <$fh> };
		1222
		1223	my %ext = (
		1224	path => $path,
		1225	base => $base,
		1226	pkg => $pkg,
		1227	);
		1228
		1229	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1230	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1231
		1232	$ext{source} =
		1233	"package $pkg; use strict; use utf8;\n"
		1234	. "#line 1 \"$path\"\n{\n"
		1235	. $source
		1236	. "\n};\n1";
		1237
		1238	$todo{$base} = \%ext;
		1239	}
		1240
		1241	my %done;
		1242	while (%todo) {
		1243	my $progress;
		1244
		1245	while (my ($k, $v) = each %todo) {
		1246	for (split /,\s*/, $v->{meta}{depends}) {
		1247	goto skip
		1248	unless exists $done{$_};
		1249	}
		1250
		1251	warn "... loading '$k' into '$v->{pkg}'\n";
		1252
		1253	unless (eval $v->{source}) {
		1254	my $msg = $@ ? "$v->{path}: $@\n"
		1255	: "$v->{base}: extension inactive.\n";
		1256
		1257	if (exists $v->{meta}{mandatory}) {
		1258	warn $msg;
		1259	warn "mandatory extension failed to load, exiting.\n";
		1260	exit 1;
		1261	}
		1262
		1263	warn $msg;
		1264	}
		1265
		1266	$done{$k} = delete $todo{$k};
		1267	push @EXTS, $v->{pkg};
		1268	$progress = 1;
1065	1	1269	}
1066	} or warn "$ext not loaded: $@";	1270
		1271	skip:
		1272	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1273	unless $progress;
		1274	}
1067	}	1275	};
1068	}	1276	}
1069		1277
1070	#############################################################################	1278	#############################################################################
1071	# load/save/clean perl data associated with a map
1072		1279
1073	*cf::mapsupport::on_clean = sub {	1280	=back
1074	my ($map) = @_;
1075
1076	my $path = $map->tmpname;
1077	defined $path or return;
1078
1079	unlink "$path.pst";
1080	};
1081
1082	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1083
1084	#############################################################################
1085		1281
1086	=head2 CORE EXTENSIONS	1282	=head2 CORE EXTENSIONS
1087		1283
1088	Functions and methods that extend core crossfire objects.	1284	Functions and methods that extend core crossfire objects.
1089		1285
…		…
1095		1291
1096	=head3 cf::player	1292	=head3 cf::player
1097		1293
1098	=over 4	1294	=over 4
1099		1295
		1296	=item cf::player::num_playing
		1297
		1298	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1299
		1300	=cut
		1301
		1302	sub num_playing {
		1303	scalar grep
		1304	$_->ob->map
		1305	&& !$_->hidden
		1306	&& !$_->ob->flag (cf::FLAG_WIZ),
		1307	cf::player::list
		1308	}
		1309
1100	=item cf::player::find $login	1310	=item cf::player::find $login
1101		1311
1102	Returns the given player object, loading it if necessary (might block).	1312	Returns the given player object, loading it if necessary (might block).
1103		1313
1104	=cut	1314	=cut
1105		1315
1106	sub playerdir($) {	1316	sub playerdir($) {
1107	cf::localdir	1317	"$PLAYERDIR/"
1108	. "/"
1109	. cf::playerdir
1110	. "/"
1111	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1318	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1112	}	1319	}
1113		1320
1114	sub path($) {	1321	sub path($) {
1115	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1322	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1116		1323
1117	(playerdir $login) . "/$login.pl"	1324	(playerdir $login) . "/playerdata"
1118	}	1325	}
1119		1326
1120	sub find_active($) {	1327	sub find_active($) {
1121	$cf::PLAYER{$_[0]}	1328	$cf::PLAYER{$_[0]}
1122	and $cf::PLAYER{$_[0]}->active	1329	and $cf::PLAYER{$_[0]}->active
…		…
1125		1332
1126	sub exists($) {	1333	sub exists($) {
1127	my ($login) = @_;	1334	my ($login) = @_;
1128		1335
1129	$cf::PLAYER{$login}	1336	$cf::PLAYER{$login}
1130	or cf::sync_job { !aio_stat $login }	1337	or cf::sync_job { !aio_stat path $login }
1131	}	1338	}
1132		1339
1133	sub find($) {	1340	sub find($) {
1134	return $cf::PLAYER{$_[0]} || do {	1341	return $cf::PLAYER{$_[0]} || do {
1135	my $login = $_[0];	1342	my $login = $_[0];
1136		1343
1137	my $guard = cf::lock_acquire "user_find:$login";	1344	my $guard = cf::lock_acquire "user_find:$login";
1138		1345
1139	$cf::PLAYER{$_[0]} || do {	1346	$cf::PLAYER{$_[0]} || do {
1140	my $pl = load_pl path $login	1347	# rename old playerfiles to new ones
		1348	#TODO: remove when no longer required
		1349	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1350	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1351	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1352	aio_unlink +(playerdir $login) . "/$login.pl";
		1353
		1354	my $f = new_from_file cf::object::thawer path $login
1141	or return;	1355	or return;
		1356
		1357	$f->next;
		1358	my $pl = cf::player::load_pl $f
		1359	or return;
		1360	local $cf::PLAYER_LOADING{$login} = $pl;
		1361	$f->resolve_delayed_derefs;
1142	$cf::PLAYER{$login} = $pl	1362	$cf::PLAYER{$login} = $pl
1143	}	1363	}
1144	}	1364	}
1145	}	1365	}
1146		1366
…		…
1156		1376
1157	aio_mkdir playerdir $pl, 0770;	1377	aio_mkdir playerdir $pl, 0770;
1158	$pl->{last_save} = $cf::RUNTIME;	1378	$pl->{last_save} = $cf::RUNTIME;
1159		1379
1160	$pl->save_pl ($path);	1380	$pl->save_pl ($path);
1161	Coro::cede;	1381	cf::cede_to_tick;
1162	}	1382	}
1163		1383
1164	sub new($) {	1384	sub new($) {
1165	my ($login) = @_;	1385	my ($login) = @_;
1166		1386
…		…
1172	$cf::PLAYER{$login} = $self;	1392	$cf::PLAYER{$login} = $self;
1173		1393
1174	$self	1394	$self
1175	}	1395	}
1176		1396
		1397	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1398
		1399	=cut
		1400
		1401	sub send_msg {
		1402	my $ns = shift->ns
		1403	or return;
		1404	$ns->send_msg (@_);
		1405	}
		1406
1177	=item $pl->quit_character	1407	=item $pl->quit_character
1178		1408
1179	Nukes the player without looking back. If logged in, the connection will	1409	Nukes the player without looking back. If logged in, the connection will
1180	be destroyed. May block for a long time.	1410	be destroyed. May block for a long time.
1181		1411
1182	=cut	1412	=cut
1183		1413
1184	sub quit_character {	1414	sub quit_character {
1185	my ($pl) = @_;	1415	my ($pl) = @_;
		1416
		1417	my $name = $pl->ob->name;
1186		1418
1187	$pl->{deny_save} = 1;	1419	$pl->{deny_save} = 1;
1188	$pl->password ("*"); # this should lock out the player until we nuked the dir	1420	$pl->password ("*"); # this should lock out the player until we nuked the dir
1189		1421
1190	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1422	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1195	my $path = playerdir $pl;	1427	my $path = playerdir $pl;
1196	my $temp = "$path~$cf::RUNTIME~deleting~";	1428	my $temp = "$path~$cf::RUNTIME~deleting~";
1197	aio_rename $path, $temp;	1429	aio_rename $path, $temp;
1198	delete $cf::PLAYER{$pl->ob->name};	1430	delete $cf::PLAYER{$pl->ob->name};
1199	$pl->destroy;	1431	$pl->destroy;
		1432
		1433	my $prefix = qr<^~\Q$name\E/>;
		1434
		1435	# nuke player maps
		1436	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1437
1200	IO::AIO::aio_rmtree $temp;	1438	IO::AIO::aio_rmtree $temp;
		1439	}
		1440
		1441	=item $pl->kick
		1442
		1443	Kicks a player out of the game. This destroys the connection.
		1444
		1445	=cut
		1446
		1447	sub kick {
		1448	my ($pl, $kicker) = @_;
		1449
		1450	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1451	$pl->killer ("kicked");
		1452	$pl->ns->destroy;
1201	}	1453	}
1202		1454
1203	=item cf::player::list_logins	1455	=item cf::player::list_logins
1204		1456
1205	Returns am arrayref of all valid playernames in the system, can take a	1457	Returns am arrayref of all valid playernames in the system, can take a
1206	while and may block, so not sync_job-capable, ever.	1458	while and may block, so not sync_job-capable, ever.
1207		1459
1208	=cut	1460	=cut
1209		1461
1210	sub list_logins {	1462	sub list_logins {
1211	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1463	my $dirs = aio_readdir $PLAYERDIR
1212	or return [];	1464	or return [];
1213		1465
1214	my @logins;	1466	my @logins;
1215		1467
1216	for my $login (@$dirs) {	1468	for my $login (@$dirs) {
		1469	my $path = path $login;
		1470
		1471	# a .pst is a dead give-away for a valid player
		1472	unless (-e "$path.pst") {
1217	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1473	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1218	aio_read $fh, 0, 512, my $buf, 0 or next;	1474	aio_read $fh, 0, 512, my $buf, 0 or next;
1219	$buf !~ /^password -------------$/m or next; # official not-valid tag	1475	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1476	}
1220		1477
1221	utf8::decode $login;	1478	utf8::decode $login;
1222	push @logins, $login;	1479	push @logins, $login;
1223	}	1480	}
1224		1481
1225	\@logins	1482	\@logins
1226	}	1483	}
1227		1484
1228	=item $player->maps	1485	=item $player->maps
1229		1486
1230	Returns an arrayref of cf::path's of all maps that are private for this	1487	Returns an arrayref of map paths that are private for this
1231	player. May block.	1488	player. May block.
1232		1489
1233	=cut	1490	=cut
1234		1491
1235	sub maps($) {	1492	sub maps($) {
1236	my ($pl) = @_;	1493	my ($pl) = @_;
		1494
		1495	$pl = ref $pl ? $pl->ob->name : $pl;
1237		1496
1238	my $files = aio_readdir playerdir $pl	1497	my $files = aio_readdir playerdir $pl
1239	or return;	1498	or return;
1240		1499
1241	my @paths;	1500	my @paths;
…		…
1243	for (@$files) {	1502	for (@$files) {
1244	utf8::decode $_;	1503	utf8::decode $_;
1245	next if /\.(?:pl|pst)$/;	1504	next if /\.(?:pl|pst)$/;
1246	next unless /^$PATH_SEP/o;	1505	next unless /^$PATH_SEP/o;
1247		1506
1248	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1507	push @paths, cf::map::normalise "~$pl/$_";
1249	}	1508	}
1250		1509
1251	\@paths	1510	\@paths
1252	}	1511	}
1253		1512
		1513	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1514
		1515	Expand crossfire pod fragments into protocol xml.
		1516
		1517	=cut
		1518
		1519	sub expand_cfpod {
		1520	((my $self), (local $_)) = @_;
		1521
		1522	# escape & and <
		1523	s/&/&amp;/g;
		1524	s/(?<![BIUGHT])</&lt;/g;
		1525
		1526	# this is buggy, it needs to properly take care of nested <'s
		1527
		1528	1 while
		1529	# replace B<>, I<>, U<> etc.
		1530	s/B<([^\>]*)>/<b>$1<\/b>/
		1531	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1532	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1533	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1534	# replace G<male|female> tags
		1535	|| s{G<([^>|]*)\|([^>]*)>}{
		1536	$self->gender ? $2 : $1
		1537	}ge
		1538	# replace H<hint text>
		1539	|| s{H<([^\>]*)>}
		1540	{
		1541	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1542	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1543	"")
		1544	[$self->{hintmode}]
		1545	}ge;
		1546
		1547	# create single paragraphs (very hackish)
		1548	s/(?<=\S)\n(?=\w)/ /g;
		1549
		1550	# compress some whitespace
		1551	s/\s+\n/\n/g; # ws line-ends
		1552	s/\n\n+/\n/g; # double lines
		1553	s/^\n+//; # beginning lines
		1554	s/\n+$//; # ending lines
		1555
		1556	$_
		1557	}
		1558
		1559	sub hintmode {
		1560	$_[0]{hintmode} = $_[1] if @_ > 1;
		1561	$_[0]{hintmode}
		1562	}
		1563
1254	=item $player->ext_reply ($msgid, $msgtype, %msg)	1564	=item $player->ext_reply ($msgid, @msg)
1255		1565
1256	Sends an ext reply to the player.	1566	Sends an ext reply to the player.
1257		1567
1258	=cut	1568	=cut
1259		1569
1260	sub ext_reply($$$%) {	1570	sub ext_reply($$@) {
1261	my ($self, $id, %msg) = @_;	1571	my ($self, $id, @msg) = @_;
1262		1572
1263	$msg{msgid} = $id;	1573	$self->ns->ext_reply ($id, @msg)
1264
1265	$self->send ("ext " . cf::to_json \%msg);
1266	}	1574	}
1267		1575
1268	package cf;	1576	=item $player->ext_msg ($type, @msg)
		1577
		1578	Sends an ext event to the client.
		1579
		1580	=cut
		1581
		1582	sub ext_msg($$@) {
		1583	my ($self, $type, @msg) = @_;
		1584
		1585	$self->ns->ext_msg ($type, @msg);
		1586	}
		1587
		1588	=head3 cf::region
		1589
		1590	=over 4
		1591
		1592	=cut
		1593
		1594	package cf::region;
		1595
		1596	=item cf::region::find_by_path $path
		1597
		1598	Tries to decuce the likely region for a map knowing only its path.
		1599
		1600	=cut
		1601
		1602	sub find_by_path($) {
		1603	my ($path) = @_;
		1604
		1605	my ($match, $specificity);
		1606
		1607	for my $region (list) {
		1608	if ($region->{match} && $path =~ $region->{match}) {
		1609	($match, $specificity) = ($region, $region->specificity)
		1610	if $region->specificity > $specificity;
		1611	}
		1612	}
		1613
		1614	$match
		1615	}
1269		1616
1270	=back	1617	=back
1271
1272		1618
1273	=head3 cf::map	1619	=head3 cf::map
1274		1620
1275	=over 4	1621	=over 4
1276		1622
…		…
1279	package cf::map;	1625	package cf::map;
1280		1626
1281	use Fcntl;	1627	use Fcntl;
1282	use Coro::AIO;	1628	use Coro::AIO;
1283		1629
		1630	use overload
		1631	'""' => \&as_string,
		1632	fallback => 1;
		1633
1284	our $MAX_RESET = 3600;	1634	our $MAX_RESET = 3600;
1285	our $DEFAULT_RESET = 3000;	1635	our $DEFAULT_RESET = 3000;
1286		1636
1287	sub generate_random_map {	1637	sub generate_random_map {
1288	my ($path, $rmp) = @_;	1638	my ($self, $rmp) = @_;
1289
1290	# mit "rum" bekleckern, nicht	1639	# mit "rum" bekleckern, nicht
1291	cf::map::_create_random_map (	1640	$self->_create_random_map (
1292	$path,
1293	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1641	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1294	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1642	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1295	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1643	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1296	$rmp->{exit_on_final_map},	1644	$rmp->{exit_on_final_map},
1297	$rmp->{xsize}, $rmp->{ysize},	1645	$rmp->{xsize}, $rmp->{ysize},
…		…
1302	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1650	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1303	(cf::region::find $rmp->{region}), $rmp->{custom}	1651	(cf::region::find $rmp->{region}), $rmp->{custom}
1304	)	1652	)
1305	}	1653	}
1306		1654
		1655	=item cf::map->register ($regex, $prio)
		1656
		1657	Register a handler for the map path matching the given regex at the
		1658	givne priority (higher is better, built-in handlers have priority 0, the
		1659	default).
		1660
		1661	=cut
		1662
		1663	sub register {
		1664	my (undef, $regex, $prio) = @_;
		1665	my $pkg = caller;
		1666
		1667	no strict;
		1668	push @{"$pkg\::ISA"}, __PACKAGE__;
		1669
		1670	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1671	}
		1672
		1673	# also paths starting with '/'
		1674	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1675
		1676	sub thawer_merge {
		1677	my ($self, $merge) = @_;
		1678
		1679	# we have to keep some variables in memory intact
		1680	local $self->{path};
		1681	local $self->{load_path};
		1682
		1683	$self->SUPER::thawer_merge ($merge);
		1684	}
		1685
		1686	sub normalise {
		1687	my ($path, $base) = @_;
		1688
		1689	$path = "$path"; # make sure its a string
		1690
		1691	$path =~ s/\.map$//;
		1692
		1693	# map plan:
		1694	#
		1695	# /! non-realised random map exit (special hack!)
		1696	# {... are special paths that are not being touched
		1697	# ?xxx/... are special absolute paths
		1698	# ?random/... random maps
		1699	# /... normal maps
		1700	# ~user/... per-player map of a specific user
		1701
		1702	$path =~ s/$PATH_SEP/\//go;
		1703
		1704	# treat it as relative path if it starts with
		1705	# something that looks reasonable
		1706	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1707	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1708
		1709	$base =~ s{[^/]+/?$}{};
		1710	$path = "$base/$path";
		1711	}
		1712
		1713	for ($path) {
		1714	redo if s{//}{/};
		1715	redo if s{/\.?/}{/};
		1716	redo if s{/[^/]+/\.\./}{/};
		1717	}
		1718
		1719	$path
		1720	}
		1721
		1722	sub new_from_path {
		1723	my (undef, $path, $base) = @_;
		1724
		1725	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1726
		1727	$path = normalise $path, $base;
		1728
		1729	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1730	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1731	my $self = bless cf::map::new, $pkg;
		1732	$self->{path} = $path; $self->path ($path);
		1733	$self->init; # pass $1 etc.
		1734	return $self;
		1735	}
		1736	}
		1737
		1738	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1739	()
		1740	}
		1741
		1742	sub init {
		1743	my ($self) = @_;
		1744
		1745	$self
		1746	}
		1747
		1748	sub as_string {
		1749	my ($self) = @_;
		1750
		1751	"$self->{path}"
		1752	}
		1753
		1754	# the displayed name, this is a one way mapping
		1755	sub visible_name {
		1756	&as_string
		1757	}
		1758
		1759	# the original (read-only) location
		1760	sub load_path {
		1761	my ($self) = @_;
		1762
		1763	"$MAPDIR/$self->{path}.map"
		1764	}
		1765
		1766	# the temporary/swap location
		1767	sub save_path {
		1768	my ($self) = @_;
		1769
		1770	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1771	"$TMPDIR/$path.map"
		1772	}
		1773
		1774	# the unique path, undef == no special unique path
		1775	sub uniq_path {
		1776	my ($self) = @_;
		1777
		1778	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1779	"$UNIQUEDIR/$path"
		1780	}
		1781
1307	# and all this just because we cannot iterate over	1782	# and all this just because we cannot iterate over
1308	# all maps in C++...	1783	# all maps in C++...
1309	sub change_all_map_light {	1784	sub change_all_map_light {
1310	my ($change) = @_;	1785	my ($change) = @_;
1311		1786
1312	$_->change_map_light ($change)	1787	$_->change_map_light ($change)
1313	for grep $_->outdoor, values %cf::MAP;	1788	for grep $_->outdoor, values %cf::MAP;
1314	}	1789	}
1315		1790
		1791	sub decay_objects {
		1792	my ($self) = @_;
		1793
		1794	return if $self->{deny_reset};
		1795
		1796	$self->do_decay_objects;
		1797	}
		1798
		1799	sub unlink_save {
		1800	my ($self) = @_;
		1801
		1802	utf8::encode (my $save = $self->save_path);
		1803	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1804	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1805	}
		1806
1316	sub load_map_header($) {	1807	sub load_header_from($) {
1317	my ($path) = @_;	1808	my ($self, $path) = @_;
1318		1809
1319	utf8::encode $path;	1810	utf8::encode $path;
1320	aio_open $path, O_RDONLY, 0	1811	my $f = new_from_file cf::object::thawer $path
1321	or return;	1812	or return;
1322		1813
1323	my $map = cf::map::new	1814	$self->_load_header ($f)
1324	or return;	1815	or return;
1325		1816
1326	# for better error messages only, will be overwritten later	1817	local $MAP_LOADING{$self->{path}} = $self;
1327	$map->path ($path);	1818	$f->resolve_delayed_derefs;
1328		1819
1329	$map->load_header ($path)	1820	$self->{load_path} = $path;
		1821
		1822	1
		1823	}
		1824
		1825	sub load_header_orig {
		1826	my ($self) = @_;
		1827
		1828	$self->load_header_from ($self->load_path)
		1829	}
		1830
		1831	sub load_header_temp {
		1832	my ($self) = @_;
		1833
		1834	$self->load_header_from ($self->save_path)
		1835	}
		1836
		1837	sub prepare_temp {
		1838	my ($self) = @_;
		1839
		1840	$self->last_access ((delete $self->{last_access})
		1841	|| $cf::RUNTIME); #d#
		1842	# safety
		1843	$self->{instantiate_time} = $cf::RUNTIME
		1844	if $self->{instantiate_time} > $cf::RUNTIME;
		1845	}
		1846
		1847	sub prepare_orig {
		1848	my ($self) = @_;
		1849
		1850	$self->{load_original} = 1;
		1851	$self->{instantiate_time} = $cf::RUNTIME;
		1852	$self->last_access ($cf::RUNTIME);
		1853	$self->instantiate;
		1854	}
		1855
		1856	sub load_header {
		1857	my ($self) = @_;
		1858
		1859	if ($self->load_header_temp) {
		1860	$self->prepare_temp;
		1861	} else {
		1862	$self->load_header_orig
1330	or return;	1863	or return;
		1864	$self->prepare_orig;
		1865	}
1331		1866
1332	$map->{load_path} = $path;	1867	$self->{deny_reset} = 1
		1868	if $self->no_reset;
1333		1869
1334	$map	1870	$self->default_region (cf::region::find_by_path $self->{path})
		1871	unless $self->default_region;
		1872
		1873	1
1335	}	1874	}
1336		1875
1337	sub find;	1876	sub find;
1338	sub find {	1877	sub find {
1339	my ($path, $origin) = @_;	1878	my ($path, $origin) = @_;
1340		1879
1341	#warn "find<$path,$origin>\n";#d#
1342
1343	$path = new cf::path $path, $origin && $origin->path;	1880	$path = normalise $path, $origin && $origin->path;
1344	my $key = $path->as_string;
1345		1881
		1882	cf::lock_wait "map_data:$path";#d#remove
1346	cf::lock_wait "map_find:$key";	1883	cf::lock_wait "map_find:$path";
1347		1884
1348	$cf::MAP{$key} || do {	1885	$cf::MAP{$path} || do {
1349	my $guard = cf::lock_acquire "map_find:$key";	1886	my $guard1 = cf::lock_acquire "map_find:$path";
		1887	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1350		1888
1351	# do it the slow way	1889	my $map = new_from_path cf::map $path
1352	my $map = $path->load_temp;
1353
1354	Coro::cede;
1355
1356	if ($map) {
1357	$map->last_access ((delete $map->{last_access})
1358	|| $cf::RUNTIME); #d#
1359	# safety
1360	$map->{instantiate_time} = $cf::RUNTIME
1361	if $map->{instantiate_time} > $cf::RUNTIME;
1362	} else {
1363	$map = $path->load_orig
1364	or return;	1890	or return;
1365		1891
1366	$map->{load_original} = 1;
1367	$map->{instantiate_time} = $cf::RUNTIME;
1368	$map->last_access ($cf::RUNTIME);
1369	$map->instantiate;
1370
1371	# per-player maps become, after loading, normal maps
1372	$map->per_player (0) if $path->{user_rel};
1373	}
1374
1375	$map->path ($key);
1376	$map->{path} = $path;
1377	$map->{last_save} = $cf::RUNTIME;	1892	$map->{last_save} = $cf::RUNTIME;
1378		1893
1379	Coro::cede;	1894	$map->load_header
		1895	or return;
1380		1896
1381	if ($map->should_reset) {	1897	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1898	# doing this can freeze the server in a sync job, obviously
		1899	#$cf::WAIT_FOR_TICK->wait;
		1900	undef $guard1;
		1901	undef $guard2;
1382	$map->reset;	1902	$map->reset;
1383	undef $guard;
1384	$map = find $path	1903	return find $path;
1385	or return;
1386	}	1904	}
1387		1905
1388	$cf::MAP{$key} = $map	1906	$cf::MAP{$path} = $map
1389	}	1907	}
1390	}	1908	}
		1909
		1910	sub pre_load { }
		1911	sub post_load { }
1391		1912
1392	sub load {	1913	sub load {
1393	my ($self) = @_;	1914	my ($self) = @_;
1394		1915
		1916	local $self->{deny_reset} = 1; # loading can take a long time
		1917
1395	my $path = $self->{path};	1918	my $path = $self->{path};
		1919
		1920	{
1396	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1921	my $guard = cf::lock_acquire "map_data:$path";
1397		1922
		1923	return unless $self->valid;
1398	return if $self->in_memory != cf::MAP_SWAPPED;	1924	return unless $self->in_memory == cf::MAP_SWAPPED;
1399		1925
1400	$self->in_memory (cf::MAP_LOADING);	1926	$self->in_memory (cf::MAP_LOADING);
1401		1927
1402	$self->alloc;	1928	$self->alloc;
1403	$self->load_objects ($self->{load_path}, 1)	1929
		1930	$self->pre_load;
		1931	cf::cede_to_tick;
		1932
		1933	my $f = new_from_file cf::object::thawer $self->{load_path};
		1934	$f->skip_block;
		1935	$self->_load_objects ($f)
1404	or return;	1936	or return;
1405		1937
1406	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1938	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1407	if delete $self->{load_original};	1939	if delete $self->{load_original};
1408		1940
1409	if (my $uniq = $path->uniq_path) {	1941	if (my $uniq = $self->uniq_path) {
1410	utf8::encode $uniq;	1942	utf8::encode $uniq;
1411	if (aio_open $uniq, O_RDONLY, 0) {	1943	unless (aio_stat $uniq) {
		1944	if (my $f = new_from_file cf::object::thawer $uniq) {
1412	$self->clear_unique_items;	1945	$self->clear_unique_items;
1413	$self->load_objects ($uniq, 0);	1946	$self->_load_objects ($f);
		1947	$f->resolve_delayed_derefs;
		1948	}
1414	}	1949	}
1415	}	1950	}
1416		1951
1417	Coro::cede;	1952	$f->resolve_delayed_derefs;
1418		1953
		1954	cf::cede_to_tick;
1419	# now do the right thing for maps	1955	# now do the right thing for maps
1420	$self->link_multipart_objects;	1956	$self->link_multipart_objects;
1421
1422	if ($self->{path}->is_style_map) {
1423	$self->{deny_save} = 1;
1424	$self->{deny_reset} = 1;
1425	} else {
1426	$self->decay_objects;
1427	$self->fix_auto_apply;
1428	$self->update_buttons;
1429	$self->set_darkness_map;
1430	$self->difficulty ($self->estimate_difficulty)	1957	$self->difficulty ($self->estimate_difficulty)
1431	unless $self->difficulty;	1958	unless $self->difficulty;
		1959	cf::cede_to_tick;
		1960
		1961	unless ($self->{deny_activate}) {
		1962	$self->decay_objects;
		1963	$self->fix_auto_apply;
		1964	$self->update_buttons;
		1965	cf::cede_to_tick;
		1966	$self->set_darkness_map;
		1967	cf::cede_to_tick;
1432	$self->activate;	1968	$self->activate;
1433	}	1969	}
1434		1970
1435	Coro::cede;	1971	$self->{last_save} = $cf::RUNTIME;
		1972	$self->last_access ($cf::RUNTIME);
1436		1973
1437	$self->in_memory (cf::MAP_IN_MEMORY);	1974	$self->in_memory (cf::MAP_IN_MEMORY);
		1975	}
		1976
		1977	$self->post_load;
		1978	}
		1979
		1980	sub customise_for {
		1981	my ($self, $ob) = @_;
		1982
		1983	return find "~" . $ob->name . "/" . $self->{path}
		1984	if $self->per_player;
		1985
		1986	# return find "?party/" . $ob->name . "/" . $self->{path}
		1987	# if $self->per_party;
		1988
		1989	$self
1438	}	1990	}
1439		1991
1440	# find and load all maps in the 3x3 area around a map	1992	# find and load all maps in the 3x3 area around a map
1441	sub load_diag {	1993	sub load_neighbours {
1442	my ($map) = @_;	1994	my ($map) = @_;
1443		1995
1444	my @diag; # diagonal neighbours	1996	my @neigh; # diagonal neighbours
1445		1997
1446	for (0 .. 3) {	1998	for (0 .. 3) {
1447	my $neigh = $map->tile_path ($_)	1999	my $neigh = $map->tile_path ($_)
1448	or next;	2000	or next;
1449	$neigh = find $neigh, $map	2001	$neigh = find $neigh, $map
1450	or next;	2002	or next;
1451	$neigh->load;	2003	$neigh->load;
1452		2004
		2005	push @neigh,
1453	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2006	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1454	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2007	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1455	}	2008	}
1456		2009
1457	for (@diag) {	2010	for (grep defined $_->[0], @neigh) {
		2011	my ($path, $origin) = @$_;
1458	my $neigh = find @$_	2012	my $neigh = find $path, $origin
1459	or next;	2013	or next;
1460	$neigh->load;	2014	$neigh->load;
1461	}	2015	}
1462	}	2016	}
1463		2017
…		…
1468	}	2022	}
1469		2023
1470	sub do_load_sync {	2024	sub do_load_sync {
1471	my ($map) = @_;	2025	my ($map) = @_;
1472		2026
		2027	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2028	if $Coro::current == $Coro::main;
		2029
1473	cf::sync_job { $map->load };	2030	cf::sync_job { $map->load };
1474	}	2031	}
1475		2032
1476	our %MAP_PREFETCH;	2033	our %MAP_PREFETCH;
		2034	our $MAP_PREFETCHER = undef;
		2035
		2036	sub find_async {
		2037	my ($path, $origin, $load) = @_;
		2038
		2039	$path = normalise $path, $origin && $origin->{path};
		2040
		2041	if (my $map = $cf::MAP{$path}) {
		2042	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2043	}
		2044
		2045	$MAP_PREFETCH{$path} |= $load;
		2046
1477	our $MAP_PREFETCHER = Coro::async {	2047	$MAP_PREFETCHER ||= cf::async {
1478	while () {
1479	while (%MAP_PREFETCH) {	2048	while (%MAP_PREFETCH) {
1480	my $key = each %MAP_PREFETCH	2049	while (my ($k, $v) = each %MAP_PREFETCH) {
1481	or next;	2050	if (my $map = find $k) {
		2051	$map->load if $v;
		2052	}
		2053
1482	my $path = delete $MAP_PREFETCH{$key};	2054	delete $MAP_PREFETCH{$k};
1483
1484	my $map = find $path
1485	or next;
1486	$map->load;
1487	}	2055	}
1488	Coro::schedule;	2056	}
		2057	undef $MAP_PREFETCHER;
1489	}	2058	};
1490	};
1491
1492	sub find_async {
1493	my ($path, $origin) = @_;
1494
1495	$path = new cf::path $path, $origin && $origin->path;
1496	my $key = $path->as_string;
1497
1498	if (my $map = $cf::MAP{$key}) {
1499	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1500	}
1501
1502	$MAP_PREFETCH{$key} = $path;
1503	$MAP_PREFETCHER->ready;	2059	$MAP_PREFETCHER->prio (6);
1504		2060
1505	()	2061	()
1506	}	2062	}
1507		2063
1508	sub save {	2064	sub save {
1509	my ($self) = @_;	2065	my ($self) = @_;
1510		2066
1511	my $lock = cf::lock_acquire "map_data:" . $self->path;	2067	my $lock = cf::lock_acquire "map_data:$self->{path}";
1512		2068
1513	$self->{last_save} = $cf::RUNTIME;	2069	$self->{last_save} = $cf::RUNTIME;
1514		2070
1515	return unless $self->dirty;	2071	return unless $self->dirty;
1516		2072
1517	my $save = $self->{path}->save_path; utf8::encode $save;	2073	my $save = $self->save_path; utf8::encode $save;
1518	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2074	my $uniq = $self->uniq_path; utf8::encode $uniq;
1519		2075
1520	$self->{load_path} = $save;	2076	$self->{load_path} = $save;
1521		2077
1522	return if $self->{deny_save};	2078	return if $self->{deny_save};
1523		2079
…		…
1526	cf::async {	2082	cf::async {
1527	$_->contr->save for $self->players;	2083	$_->contr->save for $self->players;
1528	};	2084	};
1529		2085
1530	if ($uniq) {	2086	if ($uniq) {
1531	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2087	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1532	$self->save_objects ($uniq, cf::IO_UNIQUES);	2088	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1533	} else {	2089	} else {
1534	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2090	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1535	}	2091	}
1536	}	2092	}
1537		2093
1538	sub swap_out {	2094	sub swap_out {
1539	my ($self) = @_;	2095	my ($self) = @_;
1540		2096
1541	# save first because save cedes	2097	# save first because save cedes
1542	$self->save;	2098	$self->save;
1543		2099
1544	my $lock = cf::lock_acquire "map_data:" . $self->path;	2100	my $lock = cf::lock_acquire "map_data:$self->{path}";
1545		2101
1546	return if $self->players;	2102	return if $self->players;
1547	return if $self->in_memory != cf::MAP_IN_MEMORY;	2103	return if $self->in_memory != cf::MAP_IN_MEMORY;
1548	return if $self->{deny_save};	2104	return if $self->{deny_save};
1549		2105
		2106	$self->in_memory (cf::MAP_SWAPPED);
		2107
		2108	$self->deactivate;
		2109	$_->clear_links_to ($self) for values %cf::MAP;
1550	$self->clear;	2110	$self->clear;
1551	$self->in_memory (cf::MAP_SWAPPED);
1552	}	2111	}
1553		2112
1554	sub reset_at {	2113	sub reset_at {
1555	my ($self) = @_;	2114	my ($self) = @_;
1556		2115
1557	# TODO: safety, remove and allow resettable per-player maps	2116	# TODO: safety, remove and allow resettable per-player maps
1558	return 1e99 if $self->{path}{user_rel};
1559	return 1e99 if $self->{deny_reset};	2117	return 1e99 if $self->{deny_reset};
1560		2118
1561	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2119	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1562	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2120	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1563		2121
…		…
1568	my ($self) = @_;	2126	my ($self) = @_;
1569		2127
1570	$self->reset_at <= $cf::RUNTIME	2128	$self->reset_at <= $cf::RUNTIME
1571	}	2129	}
1572		2130
1573	sub rename {
1574	my ($self, $new_path) = @_;
1575
1576	$self->{path}->unlink_save;
1577
1578	delete $cf::MAP{$self->path};
1579	$self->{path} = new cf::path $new_path;
1580	$self->path ($self->{path}->as_string);
1581	$cf::MAP{$self->path} = $self;
1582
1583	$self->save;
1584	}
1585
1586	sub reset {	2131	sub reset {
1587	my ($self) = @_;	2132	my ($self) = @_;
1588		2133
1589	my $lock = cf::lock_acquire "map_data:" . $self->path;	2134	my $lock = cf::lock_acquire "map_data:$self->{path}";
1590		2135
1591	return if $self->players;	2136	return if $self->players;
1592	return if $self->{path}{user_rel};#d#
1593		2137
1594	warn "resetting map ", $self->path;#d#	2138	warn "resetting map ", $self->path;
		2139
		2140	$self->in_memory (cf::MAP_SWAPPED);
		2141
		2142	# need to save uniques path
		2143	unless ($self->{deny_save}) {
		2144	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2145
		2146	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2147	if $uniq;
		2148	}
1595		2149
1596	delete $cf::MAP{$self->path};	2150	delete $cf::MAP{$self->path};
1597		2151
		2152	$self->deactivate;
1598	$_->clear_links_to ($self) for values %cf::MAP;	2153	$_->clear_links_to ($self) for values %cf::MAP;
		2154	$self->clear;
1599		2155
1600	$self->{path}->unlink_save;	2156	$self->unlink_save;
1601	$self->destroy;	2157	$self->destroy;
1602	}	2158	}
1603		2159
1604	my $nuke_counter = "aaaa";	2160	my $nuke_counter = "aaaa";
1605		2161
1606	sub nuke {	2162	sub nuke {
1607	my ($self) = @_;	2163	my ($self) = @_;
1608		2164
		2165	{
		2166	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2167
		2168	delete $cf::MAP{$self->path};
		2169
		2170	$self->unlink_save;
		2171
		2172	bless $self, "cf::map";
		2173	delete $self->{deny_reset};
1609	$self->{deny_save} = 1;	2174	$self->{deny_save} = 1;
1610	$self->reset_timeout (1);	2175	$self->reset_timeout (1);
1611	$self->rename ("{nuke}/" . ($nuke_counter++));	2176	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2177
		2178	$cf::MAP{$self->path} = $self;
		2179	}
		2180
1612	$self->reset; # polite request, might not happen	2181	$self->reset; # polite request, might not happen
1613	}	2182	}
1614		2183
		2184	=item $maps = cf::map::tmp_maps
		2185
		2186	Returns an arrayref with all map paths of currently instantiated and saved
		2187	maps. May block.
		2188
		2189	=cut
		2190
		2191	sub tmp_maps() {
		2192	[
		2193	map {
		2194	utf8::decode $_;
		2195	/\.map$/
		2196	? normalise $_
		2197	: ()
		2198	} @{ aio_readdir $TMPDIR or [] }
		2199	]
		2200	}
		2201
		2202	=item $maps = cf::map::random_maps
		2203
		2204	Returns an arrayref with all map paths of currently instantiated and saved
		2205	random maps. May block.
		2206
		2207	=cut
		2208
		2209	sub random_maps() {
		2210	[
		2211	map {
		2212	utf8::decode $_;
		2213	/\.map$/
		2214	? normalise "?random/$_"
		2215	: ()
		2216	} @{ aio_readdir $RANDOMDIR or [] }
		2217	]
		2218	}
		2219
1615	=item cf::map::unique_maps	2220	=item cf::map::unique_maps
1616		2221
1617	Returns an arrayref of cf::path's of all shared maps that have	2222	Returns an arrayref of paths of all shared maps that have
1618	instantiated unique items. May block.	2223	instantiated unique items. May block.
1619		2224
1620	=cut	2225	=cut
1621		2226
1622	sub unique_maps() {	2227	sub unique_maps() {
1623	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2228	[
1624	or return;	2229	map {
1625
1626	my @paths;
1627
1628	for (@$files) {
1629	utf8::decode $_;	2230	utf8::decode $_;
1630	next if /\.pst$/;	2231	/\.map$/
1631	next unless /^$PATH_SEP/o;	2232	? normalise $_
1632		2233	: ()
1633	push @paths, new cf::path $_;	2234	} @{ aio_readdir $UNIQUEDIR or [] }
1634	}	2235	]
1635
1636	\@paths
1637	}	2236	}
1638		2237
1639	package cf;	2238	package cf;
1640		2239
1641	=back	2240	=back
…		…
1659	map { $_, inv_recursive_ $_->inv } @_	2258	map { $_, inv_recursive_ $_->inv } @_
1660	}	2259	}
1661		2260
1662	sub inv_recursive {	2261	sub inv_recursive {
1663	inv_recursive_ inv $_[0]	2262	inv_recursive_ inv $_[0]
		2263	}
		2264
		2265	=item $ref = $ob->ref
		2266
		2267	creates and returns a persistent reference to an objetc that can be stored as a string.
		2268
		2269	=item $ob = cf::object::deref ($refstring)
		2270
		2271	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2272	even if the object actually exists. May block.
		2273
		2274	=cut
		2275
		2276	sub deref {
		2277	my ($ref) = @_;
		2278
		2279	# temporary compatibility#TODO#remove
		2280	$ref =~ s{^<}{player/<};
		2281
		2282	if ($ref =~ m{^player\/(<1\.\d+>)/(.*)$}) {
		2283	my ($uuid, $name) = ($1, $2);
		2284	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2285	or return;
		2286	$pl->ob->uuid eq $uuid
		2287	or return;
		2288
		2289	$pl->ob
		2290	} else {
		2291	warn "$ref: cannot resolve object reference\n";
		2292	undef
		2293	}
1664	}	2294	}
1665		2295
1666	package cf;	2296	package cf;
1667		2297
1668	=back	2298	=back
…		…
1687		2317
1688	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2318	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1689		2319
1690	if ($self->{record_replies}) {	2320	if ($self->{record_replies}) {
1691	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2321	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2322
1692	} else {	2323	} else {
		2324	my $pl = $self->contr;
		2325
		2326	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2327	my $dialog = $pl->{npc_dialog};
		2328	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2329
		2330	} else {
1693	$msg = $npc->name . " says: $msg" if $npc;	2331	$msg = $npc->name . " says: $msg" if $npc;
1694	$self->message ($msg, $flags);	2332	$self->message ($msg, $flags);
		2333	}
1695	}	2334	}
		2335	}
		2336
		2337	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2338
		2339	=cut
		2340
		2341	sub cf::object::send_msg {
		2342	my $pl = shift->contr
		2343	or return;
		2344	$pl->send_msg (@_);
1696	}	2345	}
1697		2346
1698	=item $player_object->may ("access")	2347	=item $player_object->may ("access")
1699		2348
1700	Returns wether the given player is authorized to access resource "access"	2349	Returns wether the given player is authorized to access resource "access"
…		…
1713		2362
1714	=item $player_object->enter_link	2363	=item $player_object->enter_link
1715		2364
1716	Freezes the player and moves him/her to a special map (C<{link}>).	2365	Freezes the player and moves him/her to a special map (C<{link}>).
1717		2366
1718	The player should be reaosnably safe there for short amounts of time. You	2367	The player should be reasonably safe there for short amounts of time. You
1719	I<MUST> call C<leave_link> as soon as possible, though.	2368	I<MUST> call C<leave_link> as soon as possible, though.
1720		2369
		2370	Will never block.
		2371
1721	=item $player_object->leave_link ($map, $x, $y)	2372	=item $player_object->leave_link ($map, $x, $y)
1722		2373
1723	Moves the player out of the specila link map onto the given map. If the	2374	Moves the player out of the special C<{link}> map onto the specified
1724	map is not valid (or omitted), the player will be moved back to the	2375	map. If the map is not valid (or omitted), the player will be moved back
1725	location he/she was before the call to C<enter_link>, or, if that fails,	2376	to the location he/she was before the call to C<enter_link>, or, if that
1726	to the emergency map position.	2377	fails, to the emergency map position.
1727		2378
1728	Might block.	2379	Might block.
1729		2380
1730	=cut	2381	=cut
		2382
		2383	sub link_map {
		2384	unless ($LINK_MAP) {
		2385	$LINK_MAP = cf::map::find "{link}"
		2386	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2387	$LINK_MAP->load;
		2388	}
		2389
		2390	$LINK_MAP
		2391	}
1731		2392
1732	sub cf::object::player::enter_link {	2393	sub cf::object::player::enter_link {
1733	my ($self) = @_;	2394	my ($self) = @_;
1734		2395
1735	$self->deactivate_recursive;	2396	$self->deactivate_recursive;
1736		2397
1737	return if $self->map == $LINK_MAP;	2398	return if UNIVERSAL::isa $self->map, "ext::map_link";
1738		2399
1739	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2400	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1740	if $self->map;	2401	if $self->map && $self->map->{path} ne "{link}";
1741		2402
1742	$self->enter_map ($LINK_MAP, 20, 20);	2403	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1743	}	2404	}
1744		2405
1745	sub cf::object::player::leave_link {	2406	sub cf::object::player::leave_link {
1746	my ($self, $map, $x, $y) = @_;	2407	my ($self, $map, $x, $y) = @_;
		2408
		2409	return unless $self->contr->active;
1747		2410
1748	my $link_pos = delete $self->{_link_pos};	2411	my $link_pos = delete $self->{_link_pos};
1749		2412
1750	unless ($map) {	2413	unless ($map) {
1751	# restore original map position	2414	# restore original map position
…		…
1765	# use -1 or undef as default coordinates, not 0, 0	2428	# use -1 or undef as default coordinates, not 0, 0
1766	($x, $y) = ($map->enter_x, $map->enter_y)	2429	($x, $y) = ($map->enter_x, $map->enter_y)
1767	if $x <=0 && $y <= 0;	2430	if $x <=0 && $y <= 0;
1768		2431
1769	$map->load;	2432	$map->load;
1770	$map->load_diag;	2433	$map->load_neighbours;
1771		2434
1772	return unless $self->contr->active;	2435	return unless $self->contr->active;
1773	$self->activate_recursive;	2436	$self->activate_recursive;
		2437
		2438	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1774	$self->enter_map ($map, $x, $y);	2439	$self->enter_map ($map, $x, $y);
1775	}	2440	}
1776		2441
1777	cf::player->attach (	2442	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1778	on_logout => sub {
1779	my ($pl) = @_;
1780		2443
1781	# abort map switching before logout	2444	Moves the player to the given map-path and coordinates by first freezing
1782	if ($pl->ob->{_link_pos}) {	2445	her, loading and preparing them map, calling the provided $check callback
1783	cf::sync_job {	2446	that has to return the map if sucecssful, and then unfreezes the player on
1784	$pl->ob->leave_link	2447	the new (success) or old (failed) map position. In either case, $done will
1785	};	2448	be called at the end of this process.
1786	}
1787	},
1788	on_login => sub {
1789	my ($pl) = @_;
1790		2449
1791	# try to abort aborted map switching on player login :)
1792	# should happen only on crashes
1793	if ($pl->ob->{_link_pos}) {
1794	$pl->ob->enter_link;
1795	(async {
1796	# we need this sleep as the login has a concurrent enter_exit running
1797	# and this sleep increases chances of the player not ending up in scorn
1798	$pl->ob->reply (undef,
1799	"There was an internal problem at your last logout, "
1800	. "the server will try to bring you to your intended destination in a second.",
1801	cf::NDI_RED);
1802	Coro::Timer::sleep 1;
1803	$pl->ob->leave_link;
1804	})->prio (2);
1805	}
1806	},
1807	);
1808
1809	=item $player_object->goto ($path, $x, $y)
1810
1811	=cut	2450	=cut
		2451
		2452	our $GOTOGEN;
1812		2453
1813	sub cf::object::player::goto {	2454	sub cf::object::player::goto {
1814	my ($self, $path, $x, $y) = @_;	2455	my ($self, $path, $x, $y, $check, $done) = @_;
1815		2456
1816	$path = new cf::path $path;	2457	# do generation counting so two concurrent goto's will be executed in-order
		2458	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1817		2459
1818	$self->enter_link;	2460	$self->enter_link;
1819		2461
1820	(async {	2462	(async {
1821	my $map = cf::map::find $path->as_string;	2463	# *tag paths override both path and x|y
1822	$map = $map->{path}->customise_for ($map, $self) if $map;	2464	if ($path =~ /^\*(.*)$/) {
		2465	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2466	my $ob = $obs[rand @obs];
1823		2467
1824	# warn "entering ", $map->path, " at ($x, $y)\n"	2468	# see if we actually can go there
		2469	if (@obs = grep !$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
1825	# if $map;	2485	if ($map) {
1826		2486	$map = $map->customise_for ($self);
		2487	$map = $check->($map) if $check && $map;
		2488	} else {
1827	$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	}
1828		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};
1829	$self->leave_link ($map, $x, $y);	2502	$self->leave_link ($map, $x, $y);
		2503	}
		2504
		2505	$done->() if $done;
1830	})->prio (1);	2506	})->prio (1);
1831	}	2507	}
1832		2508
1833	=item $player_object->enter_exit ($exit_object)	2509	=item $player_object->enter_exit ($exit_object)
1834		2510
…		…
1836		2512
1837	sub parse_random_map_params {	2513	sub parse_random_map_params {
1838	my ($spec) = @_;	2514	my ($spec) = @_;
1839		2515
1840	my $rmp = { # defaults	2516	my $rmp = { # defaults
1841	xsize => 10,	2517	xsize => (cf::rndm 15, 40),
1842	ysize => 10,	2518	ysize => (cf::rndm 15, 40),
		2519	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2520	#layout => string,
1843	};	2521	};
1844		2522
1845	for (split /\n/, $spec) {	2523	for (split /\n/, $spec) {
1846	my ($k, $v) = split /\s+/, $_, 2;	2524	my ($k, $v) = split /\s+/, $_, 2;
1847		2525
…		…
1851	$rmp	2529	$rmp
1852	}	2530	}
1853		2531
1854	sub prepare_random_map {	2532	sub prepare_random_map {
1855	my ($exit) = @_;	2533	my ($exit) = @_;
		2534
		2535	my $guard = cf::lock_acquire "exit_prepare:$exit";
1856		2536
1857	# all this does is basically replace the /! path by	2537	# all this does is basically replace the /! path by
1858	# a new random map path (?random/...) with a seed	2538	# a new random map path (?random/...) with a seed
1859	# that depends on the exit object	2539	# that depends on the exit object
1860		2540
1861	my $rmp = parse_random_map_params $exit->msg;	2541	my $rmp = parse_random_map_params $exit->msg;
1862		2542
1863	if ($exit->map) {	2543	if ($exit->map) {
1864	$rmp->{region} = $exit->map->region_name;	2544	$rmp->{region} = $exit->region->name;
1865	$rmp->{origin_map} = $exit->map->path;	2545	$rmp->{origin_map} = $exit->map->path;
1866	$rmp->{origin_x} = $exit->x;	2546	$rmp->{origin_x} = $exit->x;
1867	$rmp->{origin_y} = $exit->y;	2547	$rmp->{origin_y} = $exit->y;
1868	}	2548	}
1869		2549
1870	$rmp->{random_seed} ||= $exit->random_seed;	2550	$rmp->{random_seed} ||= $exit->random_seed;
1871		2551
1872	my $data = cf::to_json $rmp;	2552	my $data = cf::to_json $rmp;
1873	my $md5 = Digest::MD5::md5_hex $data;	2553	my $md5 = Digest::MD5::md5_hex $data;
		2554	my $meta = "$RANDOMDIR/$md5.meta";
1874		2555
1875	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) {
1876	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;
1877		2560
1878	$exit->slaying ("?random/$md5");	2561	$exit->slaying ("?random/$md5");
1879	$exit->msg (undef);	2562	$exit->msg (undef);
1880	}	2563	}
1881	}	2564	}
…		…
1883	sub cf::object::player::enter_exit {	2566	sub cf::object::player::enter_exit {
1884	my ($self, $exit) = @_;	2567	my ($self, $exit) = @_;
1885		2568
1886	return unless $self->type == cf::PLAYER;	2569	return unless $self->type == cf::PLAYER;
1887		2570
		2571	if ($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
1888	$self->enter_link;	2582	$self->enter_link;
		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);
1889		2587
1890	(async {	2588	(async {
1891	$self->deactivate_recursive; # just to be sure	2589	$self->deactivate_recursive; # just to be sure
1892	unless (eval {	2590	unless (eval {
1893	prepare_random_map $exit	2591	$self->goto ($slaying, $hp, $sp);
1894	if $exit->slaying eq "/!";
1895
1896	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1897	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1898		2592
1899	1;	2593	1;
1900	}) {	2594	}) {
1901	$self->message ("Something went wrong deep within the crossfire server. "	2595	$self->message ("Something went wrong deep within the crossfire server. "
1902	. "I'll try to bring you back to the map you were before. "	2596	. "I'll try to bring you back to the map you were before. "
1903	. "Please report this to the dungeon master!",	2597	. "Please report this to the dungeon master!",
1904	cf::NDI_UNIQUE | cf::NDI_RED);	2598	cf::NDI_UNIQUE | cf::NDI_RED);
1905		2599
1906	warn "ERROR in enter_exit: $@";	2600	warn "ERROR in enter_exit: $@";
1907	$self->leave_link;	2601	$self->leave_link;
1908	}	2602	}
1909	})->prio (1);	2603	})->prio (1);
…		…
1922		2616
1923	sub cf::client::send_drawinfo {	2617	sub cf::client::send_drawinfo {
1924	my ($self, $text, $flags) = @_;	2618	my ($self, $text, $flags) = @_;
1925		2619
1926	utf8::encode $text;	2620	utf8::encode $text;
1927	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2621	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1928	}	2622	}
1929		2623
		2624	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2625
		2626	Send a drawinfo or msg packet to the client, formatting the msg for the
		2627	client if neccessary. C<$type> should be a string identifying the type of
		2628	the message, with C<log> being the default. If C<$color> is negative, suppress
		2629	the message unless the client supports the msg packet.
		2630
		2631	=cut
		2632
		2633	our %CHANNEL = (
		2634	"c/identify" => {
		2635	id => "identify",
		2636	title => "Identify",
		2637	reply => undef,
		2638	tooltip => "Items recently identified",
		2639	},
		2640	"c/examine" => {
		2641	id => "examine",
		2642	title => "Examine",
		2643	reply => undef,
		2644	tooltip => "Signs and other items you examined",
		2645	},
		2646	);
		2647
		2648	sub cf::client::send_msg {
		2649	my ($self, $channel, $msg, $color, @extra) = @_;
		2650
		2651	$msg = $self->pl->expand_cfpod ($msg);
		2652
		2653	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2654
		2655	# check predefined channels, for the benefit of C
		2656	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2657
		2658	if (ref $channel) {
		2659	# send meta info to client, if not yet sent
		2660	unless (exists $self->{channel}{$channel->{id}}) {
		2661	$self->{channel}{$channel->{id}} = $channel;
		2662	$self->ext_msg (channel_info => $channel)
		2663	if $self->can_msg;
		2664	}
		2665
		2666	$channel = $channel->{id};
		2667	}
		2668
		2669	return unless @extra || length $msg;
		2670
		2671	if ($self->can_msg) {
		2672	# default colour, mask it out
		2673	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2674	if $color & cf::NDI_DEF;
		2675
		2676	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2677	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2678	} else {
		2679	if ($color >= 0) {
		2680	# replace some tags by gcfclient-compatible ones
		2681	for ($msg) {
		2682	1 while
		2683	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2684	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2685	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2686	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2687	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2688	}
		2689
		2690	$color &= cf::NDI_COLOR_MASK;
		2691
		2692	utf8::encode $msg;
		2693
		2694	if (0 && $msg =~ /\[/) {
		2695	# COMMAND/INFO
		2696	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2697	} else {
		2698	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2699	$self->send_packet ("drawinfo $color $msg")
		2700	}
		2701	}
		2702	}
		2703	}
		2704
		2705	=item $client->ext_msg ($type, @msg)
		2706
		2707	Sends an ext event to the client.
		2708
		2709	=cut
		2710
		2711	sub cf::client::ext_msg($$@) {
		2712	my ($self, $type, @msg) = @_;
		2713
		2714	if ($self->extcmd == 2) {
		2715	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2716	} elsif ($self->extcmd == 1) { # TODO: remove
		2717	push @msg, msgtype => "event_$type";
		2718	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2719	}
		2720	}
		2721
		2722	=item $client->ext_reply ($msgid, @msg)
		2723
		2724	Sends an ext reply to the client.
		2725
		2726	=cut
		2727
		2728	sub cf::client::ext_reply($$@) {
		2729	my ($self, $id, @msg) = @_;
		2730
		2731	if ($self->extcmd == 2) {
		2732	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2733	} elsif ($self->extcmd == 1) {
		2734	#TODO: version 1, remove
		2735	unshift @msg, msgtype => "reply", msgid => $id;
		2736	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2737	}
		2738	}
1930		2739
1931	=item $success = $client->query ($flags, "text", \&cb)	2740	=item $success = $client->query ($flags, "text", \&cb)
1932		2741
1933	Queues a query to the client, calling the given callback with	2742	Queues a query to the client, calling the given callback with
1934	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2743	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1935	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2744	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1936		2745
1937	Queries can fail, so check the return code. Or don't, as queries will become	2746	Queries can fail, so check the return code. Or don't, as queries will
1938	reliable at some point in the future.	2747	become reliable at some point in the future.
1939		2748
1940	=cut	2749	=cut
1941		2750
1942	sub cf::client::query {	2751	sub cf::client::query {
1943	my ($self, $flags, $text, $cb) = @_;	2752	my ($self, $flags, $text, $cb) = @_;
…		…
1951	utf8::encode $text;	2760	utf8::encode $text;
1952	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2761	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1953		2762
1954	$self->send_packet ($self->{query_queue}[0][0])	2763	$self->send_packet ($self->{query_queue}[0][0])
1955	if @{ $self->{query_queue} } == 1;	2764	if @{ $self->{query_queue} } == 1;
		2765
		2766	1
1956	}	2767	}
1957		2768
1958	cf::client->attach (	2769	cf::client->attach (
		2770	on_connect => sub {
		2771	my ($ns) = @_;
		2772
		2773	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2774	},
1959	on_reply => sub {	2775	on_reply => sub {
1960	my ($ns, $msg) = @_;	2776	my ($ns, $msg) = @_;
1961		2777
1962	# this weird shuffling is so that direct followup queries	2778	# this weird shuffling is so that direct followup queries
1963	# get handled first	2779	# get handled first
1964	my $queue = delete $ns->{query_queue}	2780	my $queue = delete $ns->{query_queue}
1965	or return; # be conservative, not sure how that can happen, but we saw a crash here	2781	or return; # be conservative, not sure how that can happen, but we saw a crash here
1966		2782
1967	(shift @$queue)->[1]->($msg);	2783	(shift @$queue)->[1]->($msg);
		2784	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1968		2785
1969	push @{ $ns->{query_queue} }, @$queue;	2786	push @{ $ns->{query_queue} }, @$queue;
1970		2787
1971	if (@{ $ns->{query_queue} } == @$queue) {	2788	if (@{ $ns->{query_queue} } == @$queue) {
1972	if (@$queue) {	2789	if (@$queue) {
…		…
1974	} else {	2791	} else {
1975	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2792	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1976	}	2793	}
1977	}	2794	}
1978	},	2795	},
		2796	on_exticmd => sub {
		2797	my ($ns, $buf) = @_;
		2798
		2799	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2800
		2801	if (ref $msg) {
		2802	my ($type, $reply, @payload) =
		2803	"ARRAY" eq ref $msg
		2804	? @$msg
		2805	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2806
		2807	my @reply;
		2808
		2809	if (my $cb = $EXTICMD{$type}) {
		2810	@reply = $cb->($ns, @payload);
		2811	}
		2812
		2813	$ns->ext_reply ($reply, @reply)
		2814	if $reply;
		2815
		2816	} else {
		2817	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2818	}
		2819
		2820	cf::override;
		2821	},
1979	);	2822	);
1980		2823
1981	=item $client->async (\&cb)	2824	=item $client->async (\&cb)
1982		2825
1983	Create a new coroutine, running the specified callback. The coroutine will	2826	Create a new coroutine, running the specified callback. The coroutine will
…		…
2024	our $safe = new Safe "safe";	2867	our $safe = new Safe "safe";
2025	our $safe_hole = new Safe::Hole;	2868	our $safe_hole = new Safe::Hole;
2026		2869
2027	$SIG{FPE} = 'IGNORE';	2870	$SIG{FPE} = 'IGNORE';
2028		2871
2029	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2872	$safe->permit_only (Opcode::opset qw(
		2873	:base_core :base_mem :base_orig :base_math
		2874	grepstart grepwhile mapstart mapwhile
		2875	sort time
		2876	));
2030		2877
2031	# here we export the classes and methods available to script code	2878	# here we export the classes and methods available to script code
2032		2879
2033	=pod	2880	=pod
2034		2881
2035	The following fucntions and emthods are available within a safe environment:	2882	The following functions and methods are available within a safe environment:
2036		2883
2037	cf::object contr pay_amount pay_player map	2884	cf::object
		2885	contr pay_amount pay_player map x y force_find force_add
		2886	insert remove name archname title slaying race decrease_ob_nr
		2887
2038	cf::object::player player	2888	cf::object::player
2039	cf::player peaceful	2889	player
2040	cf::map trigger	2890
		2891	cf::player
		2892	peaceful
		2893
		2894	cf::map
		2895	trigger
2041		2896
2042	=cut	2897	=cut
2043		2898
2044	for (	2899	for (
2045	["cf::object" => qw(contr pay_amount pay_player map)],	2900	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2901	insert remove inv name archname title slaying race
		2902	decrease_ob_nr)],
2046	["cf::object::player" => qw(player)],	2903	["cf::object::player" => qw(player)],
2047	["cf::player" => qw(peaceful)],	2904	["cf::player" => qw(peaceful)],
2048	["cf::map" => qw(trigger)],	2905	["cf::map" => qw(trigger)],
2049	) {	2906	) {
2050	no strict 'refs';	2907	no strict 'refs';
…		…
2121	=back	2978	=back
2122		2979
2123	=cut	2980	=cut
2124		2981
2125	#############################################################################	2982	#############################################################################
		2983	# the server's init and main functions
2126		2984
2127	=head2 EXTENSION DATABASE SUPPORT	2985	sub load_facedata($) {
		2986	my ($path) = @_;
2128		2987
2129	Crossfire maintains a very simple database for extension use. It can	2988	# HACK to clear player env face cache, we need some signal framework
2130	currently store anything that can be serialised using Storable, which	2989	# for this (global event?)
2131	excludes objects.	2990	%ext::player_env::MUSIC_FACE_CACHE = ();
2132		2991
2133	The parameter C<$family> should best start with the name of the extension	2992	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2134	using it, it should be unique.
2135		2993
2136	=over 4	2994	warn "loading facedata from $path\n";
2137		2995
2138	=item $hashref = cf::db_get $family	2996	my $facedata;
		2997	0 < aio_load $path, $facedata
		2998	or die "$path: $!";
2139		2999
2140	Return a hashref for use by the extension C<$family>, which can be	3000	$facedata = Coro::Storable::thaw $facedata;
2141	modified. After modifications, you have to call C<cf::db_dirty> or
2142	C<cf::db_sync>.
2143		3001
2144	=item $value = cf::db_get $family => $key	3002	$facedata->{version} == 2
		3003	or cf::cleanup "$path: version mismatch, cannot proceed.";
2145		3004
2146	Returns a single value from the database	3005	# patch in the exptable
2147		3006	$facedata->{resource}{"res/exp_table"} = {
2148	=item cf::db_put $family => $hashref	3007	type => FT_RSRC,
2149		3008	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2150	Stores the given family hashref into the database. Updates are delayed, if
2151	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2152
2153	=item cf::db_put $family => $key => $value
2154
2155	Stores the given C<$value> in the family hash. Updates are delayed, if you
2156	want the data to be synced to disk immediately, use C<cf::db_sync>.
2157
2158	=item cf::db_dirty
2159
2160	Marks the database as dirty, to be updated at a later time.
2161
2162	=item cf::db_sync
2163
2164	Immediately write the database to disk I<if it is dirty>.
2165
2166	=cut
2167
2168	our $DB;
2169
2170	{
2171	my $path = cf::localdir . "/database.pst";
2172
2173	sub db_load() {
2174	$DB = stat $path ? Storable::retrieve $path : { };
2175	}
2176
2177	my $pid;
2178
2179	sub db_save() {
2180	waitpid $pid, 0 if $pid;
2181	if (0 == ($pid = fork)) {
2182	$DB->{_meta}{version} = 1;
2183	Storable::nstore $DB, "$path~";
2184	rename "$path~", $path;
2185	cf::_exit 0 if defined $pid;
2186	}
2187	}
2188
2189	my $dirty;
2190
2191	sub db_sync() {
2192	db_save if $dirty;
2193	undef $dirty;
2194	}
2195
2196	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2197	db_sync;
2198	});	3009	};
		3010	cf::cede_to_tick;
2199		3011
2200	sub db_dirty() {
2201	$dirty = 1;
2202	$idle->start;
2203	}	3012	{
		3013	my $faces = $facedata->{faceinfo};
2204		3014
2205	sub db_get($;$) {	3015	while (my ($face, $info) = each %$faces) {
2206	@_ >= 2	3016	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2207	? $DB->{$_[0]}{$_[1]}	3017	cf::face::set_visibility $idx, $info->{visibility};
2208	: ($DB->{$_[0]} ||= { })	3018	cf::face::set_magicmap $idx, $info->{magicmap};
2209	}	3019	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3020	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2210		3021
2211	sub db_put($$;$) {	3022	cf::cede_to_tick;
2212	if (@_ >= 3) {
2213	$DB->{$_[0]}{$_[1]} = $_[2];
2214	} else {
2215	$DB->{$_[0]} = $_[1];
2216	}
2217	db_dirty;
2218	}
2219
2220	cf::global->attach (
2221	prio => 10000,
2222	on_cleanup => sub {
2223	db_sync;
2224	},	3023	}
2225	);
2226	}
2227		3024
2228	#############################################################################	3025	while (my ($face, $info) = each %$faces) {
2229	# the server's main()	3026	next unless $info->{smooth};
		3027	my $idx = cf::face::find $face
		3028	or next;
		3029	if (my $smooth = cf::face::find $info->{smooth}) {
		3030	cf::face::set_smooth $idx, $smooth;
		3031	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3032	} else {
		3033	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3034	}
2230		3035
2231	sub cfg_load {	3036	cf::cede_to_tick;
		3037	}
		3038	}
		3039
		3040	{
		3041	my $anims = $facedata->{animinfo};
		3042
		3043	while (my ($anim, $info) = each %$anims) {
		3044	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3045	cf::cede_to_tick;
		3046	}
		3047
		3048	cf::anim::invalidate_all; # d'oh
		3049	}
		3050
		3051	{
		3052	# TODO: for gcfclient pleasure, we should give resources
		3053	# that gcfclient doesn't grok a >10000 face index.
		3054	my $res = $facedata->{resource};
		3055
		3056	my $soundconf = delete $res->{"res/sound.conf"};
		3057
		3058	while (my ($name, $info) = each %$res) {
		3059	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3060	my $data;
		3061
		3062	if ($info->{type} & 1) {
		3063	# prepend meta info
		3064
		3065	my $meta = $enc->encode ({
		3066	name => $name,
		3067	%{ $info->{meta} || {} },
		3068	});
		3069
		3070	$data = pack "(w/a*)*", $meta, $info->{data};
		3071	} else {
		3072	$data = $info->{data};
		3073	}
		3074
		3075	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3076	cf::face::set_type $idx, $info->{type};
		3077
		3078	cf::cede_to_tick;
		3079	}
		3080
		3081	if ($soundconf) {
		3082	$soundconf = $enc->decode (delete $soundconf->{data});
		3083
		3084	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3085	my $sound = $soundconf->{compat}[$_]
		3086	or next;
		3087
		3088	my $face = cf::face::find "sound/$sound->[1]";
		3089	cf::sound::set $sound->[0] => $face;
		3090	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3091	}
		3092
		3093	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3094	my $face = cf::face::find "sound/$v";
		3095	cf::sound::set $k => $face;
		3096	}
		3097	}
		3098	}
		3099
		3100	1
		3101	}
		3102
		3103	register_exticmd fx_want => sub {
		3104	my ($ns, $want) = @_;
		3105
		3106	while (my ($k, $v) = each %$want) {
		3107	$ns->fx_want ($k, $v);
		3108	}
		3109	};
		3110
		3111	sub reload_regions {
		3112	# HACK to clear player env face cache, we need some signal framework
		3113	# for this (global event?)
		3114	%ext::player_env::MUSIC_FACE_CACHE = ();
		3115
		3116	load_resource_file "$MAPDIR/regions"
		3117	or die "unable to load regions file\n";
		3118
		3119	for (cf::region::list) {
		3120	$_->{match} = qr/$_->{match}/
		3121	if exists $_->{match};
		3122	}
		3123	}
		3124
		3125	sub reload_facedata {
		3126	load_facedata "$DATADIR/facedata"
		3127	or die "unable to load facedata\n";
		3128	}
		3129
		3130	sub reload_archetypes {
		3131	load_resource_file "$DATADIR/archetypes"
		3132	or die "unable to load archetypes\n";
		3133	#d# NEED to laod twice to resolve forward references
		3134	# this really needs to be done in an extra post-pass
		3135	# (which needs to be synchronous, so solve it differently)
		3136	load_resource_file "$DATADIR/archetypes"
		3137	or die "unable to load archetypes\n";
		3138	}
		3139
		3140	sub reload_treasures {
		3141	load_resource_file "$DATADIR/treasures"
		3142	or die "unable to load treasurelists\n";
		3143	}
		3144
		3145	sub reload_resources {
		3146	warn "reloading resource files...\n";
		3147
		3148	reload_regions;
		3149	reload_facedata;
		3150	#reload_archetypes;#d#
		3151	reload_archetypes;
		3152	reload_treasures;
		3153
		3154	warn "finished reloading resource files\n";
		3155	}
		3156
		3157	sub init {
		3158	reload_resources;
		3159	}
		3160
		3161	sub reload_config {
2232	open my $fh, "<:utf8", cf::confdir . "/config"	3162	open my $fh, "<:utf8", "$CONFDIR/config"
2233	or return;	3163	or return;
2234		3164
2235	local $/;	3165	local $/;
2236	*CFG = YAML::Syck::Load <$fh>;	3166	*CFG = YAML::Syck::Load <$fh>;
2237		3167
…		…
2251		3181
2252	sub main {	3182	sub main {
2253	# we must not ever block the main coroutine	3183	# we must not ever block the main coroutine
2254	local $Coro::idle = sub {	3184	local $Coro::idle = sub {
2255	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3185	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3186	(async {
2256	async { Event::one_event };	3187	Event::one_event;
		3188	})->prio (Coro::PRIO_MAX);
2257	};	3189	};
2258		3190
2259	cfg_load;	3191	reload_config;
2260	db_load;	3192	db_init;
2261	load_extensions;	3193	load_extensions;
		3194
		3195	$TICK_WATCHER->start;
2262	Event::loop;	3196	Event::loop;
2263	}	3197	}
2264		3198
2265	#############################################################################	3199	#############################################################################
2266	# initialisation and cleanup	3200	# initialisation and cleanup
2267		3201
2268	# install some emergency cleanup handlers	3202	# install some emergency cleanup handlers
2269	BEGIN {	3203	BEGIN {
2270	for my $signal (qw(INT HUP TERM)) {	3204	for my $signal (qw(INT HUP TERM)) {
2271	Event->signal (	3205	Event->signal (
		3206	reentrant => 0,
2272	data => WF_AUTOCANCEL,	3207	data => WF_AUTOCANCEL,
2273	signal => $signal,	3208	signal => $signal,
		3209	prio => 0,
2274	cb => sub {	3210	cb => sub {
2275	cf::cleanup "SIG$signal";	3211	cf::cleanup "SIG$signal";
2276	},	3212	},
2277	);	3213	);
2278	}	3214	}
2279	}	3215	}
2280		3216
		3217	sub write_runtime {
		3218	my $runtime = "$LOCALDIR/runtime";
		3219
		3220	# first touch the runtime file to show we are still running:
		3221	# the fsync below can take a very very long time.
		3222
		3223	IO::AIO::aio_utime $runtime, undef, undef;
		3224
		3225	my $guard = cf::lock_acquire "write_runtime";
		3226
		3227	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3228	or return;
		3229
		3230	my $value = $cf::RUNTIME + 90 + 10;
		3231	# 10 is the runtime save interval, for a monotonic clock
		3232	# 60 allows for the watchdog to kill the server.
		3233
		3234	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3235	and return;
		3236
		3237	# always fsync - this file is important
		3238	aio_fsync $fh
		3239	and return;
		3240
		3241	# touch it again to show we are up-to-date
		3242	aio_utime $fh, undef, undef;
		3243
		3244	close $fh
		3245	or return;
		3246
		3247	aio_rename "$runtime~", $runtime
		3248	and return;
		3249
		3250	warn "runtime file written.\n";
		3251
		3252	1
		3253	}
		3254
2281	sub emergency_save() {	3255	sub emergency_save() {
2282	my $freeze_guard = cf::freeze_mainloop;	3256	my $freeze_guard = cf::freeze_mainloop;
2283		3257
2284	warn "enter emergency perl save\n";	3258	warn "enter emergency perl save\n";
2285		3259
2286	cf::sync_job {	3260	cf::sync_job {
2287	# use a peculiar iteration method to avoid tripping on perl	3261	# use a peculiar iteration method to avoid tripping on perl
2288	# refcount bugs in for. also avoids problems with players	3262	# refcount bugs in for. also avoids problems with players
2289	# and maps saved/Destroyed asynchronously.	3263	# and maps saved/destroyed asynchronously.
2290	warn "begin emergency player save\n";	3264	warn "begin emergency player save\n";
2291	for my $login (keys %cf::PLAYER) {	3265	for my $login (keys %cf::PLAYER) {
2292	my $pl = $cf::PLAYER{$login} or next;	3266	my $pl = $cf::PLAYER{$login} or next;
2293	$pl->valid or next;	3267	$pl->valid or next;
2294	$pl->save;	3268	$pl->save;
…		…
2300	my $map = $cf::MAP{$path} or next;	3274	my $map = $cf::MAP{$path} or next;
2301	$map->valid or next;	3275	$map->valid or next;
2302	$map->save;	3276	$map->save;
2303	}	3277	}
2304	warn "end emergency map save\n";	3278	warn "end emergency map save\n";
		3279
		3280	warn "begin emergency database checkpoint\n";
		3281	BDB::db_env_txn_checkpoint $DB_ENV;
		3282	warn "end emergency database checkpoint\n";
2305	};	3283	};
2306		3284
2307	warn "leave emergency perl save\n";	3285	warn "leave emergency perl save\n";
2308	}	3286	}
2309		3287
		3288	sub post_cleanup {
		3289	my ($make_core) = @_;
		3290
		3291	warn Carp::longmess "post_cleanup backtrace"
		3292	if $make_core;
		3293	}
		3294
2310	sub reload() {	3295	sub do_reload_perl() {
2311	# can/must only be called in main	3296	# can/must only be called in main
2312	if ($Coro::current != $Coro::main) {	3297	if ($Coro::current != $Coro::main) {
2313	warn "can only reload from main coroutine\n";	3298	warn "can only reload from main coroutine";
2314	return;	3299	return;
2315	}	3300	}
2316		3301
2317	warn "reloading...";	3302	warn "reloading...";
2318		3303
2319	warn "freezing server";	3304	warn "entering sync_job";
2320	my $guard = freeze_mainloop;	3305
		3306	cf::sync_job {
		3307	cf::write_runtime; # external watchdog should not bark
2321	cf::emergency_save;	3308	cf::emergency_save;
		3309	cf::write_runtime; # external watchdog should not bark
2322		3310
2323	warn "sync database to disk";	3311	warn "syncing database to disk";
2324	cf::db_sync;	3312	BDB::db_env_txn_checkpoint $DB_ENV;
2325	IO::AIO::flush;
2326		3313
2327	eval {
2328	# if anything goes wrong in here, we should simply crash as we already saved	3314	# if anything goes wrong in here, we should simply crash as we already saved
2329		3315
2330	warn "cancel all watchers";	3316	warn "cancelling all WF_AUTOCANCEL watchers";
2331	for (Event::all_watchers) {	3317	for (Event::all_watchers) {
2332	$_->cancel if $_->data & WF_AUTOCANCEL;	3318	$_->cancel if $_->data & WF_AUTOCANCEL;
2333	}	3319	}
2334		3320
		3321	warn "flushing outstanding aio requests";
		3322	for (;;) {
		3323	BDB::flush;
		3324	IO::AIO::flush;
		3325	Coro::cede;
		3326	last unless IO::AIO::nreqs || BDB::nreqs;
		3327	warn "iterate...";
		3328	}
		3329
		3330	++$RELOAD;
		3331
2335	warn "cancel all extension coros";	3332	warn "cancelling all extension coros";
2336	$_->cancel for values %EXT_CORO;	3333	$_->cancel for values %EXT_CORO;
2337	%EXT_CORO = ();	3334	%EXT_CORO = ();
2338		3335
2339	warn "remove commands";	3336	warn "removing commands";
2340	%COMMAND = ();	3337	%COMMAND = ();
2341		3338
2342	warn "remove ext commands";	3339	warn "removing ext/exti commands";
2343	%EXTCMD = ();	3340	%EXTCMD = ();
		3341	%EXTICMD = ();
2344		3342
2345	warn "unload/nuke all extensions";	3343	warn "unloading/nuking all extensions";
2346	for my $pkg (@EXTS) {	3344	for my $pkg (@EXTS) {
2347	warn "... unloading $pkg";	3345	warn "... unloading $pkg";
2348		3346
2349	if (my $cb = $pkg->can ("unload")) {	3347	if (my $cb = $pkg->can ("unload")) {
2350	eval {	3348	eval {
…		…
2355		3353
2356	warn "... nuking $pkg";	3354	warn "... nuking $pkg";
2357	Symbol::delete_package $pkg;	3355	Symbol::delete_package $pkg;
2358	}	3356	}
2359		3357
2360	warn "unload all perl modules loaded from $LIBDIR";	3358	warn "unloading all perl modules loaded from $LIBDIR";
2361	while (my ($k, $v) = each %INC) {	3359	while (my ($k, $v) = each %INC) {
2362	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3360	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2363		3361
2364	warn "removing <$k>";	3362	warn "... unloading $k";
2365	delete $INC{$k};	3363	delete $INC{$k};
2366		3364
2367	$k =~ s/\.pm$//;	3365	$k =~ s/\.pm$//;
2368	$k =~ s/\//::/g;	3366	$k =~ s/\//::/g;
2369		3367
…		…
2372	}	3370	}
2373		3371
2374	Symbol::delete_package $k;	3372	Symbol::delete_package $k;
2375	}	3373	}
2376		3374
2377	warn "get rid of safe::, as good as possible";	3375	warn "getting rid of safe::, as good as possible";
2378	Symbol::delete_package "safe::$_"	3376	Symbol::delete_package "safe::$_"
2379	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3377	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2380		3378
2381	warn "unload cf.pm \"a bit\"";	3379	warn "unloading cf.pm \"a bit\"";
2382	delete $INC{"cf.pm"};	3380	delete $INC{"cf.pm"};
		3381	delete $INC{"cf/pod.pm"};
2383		3382
2384	# don't, removes xs symbols, too,	3383	# don't, removes xs symbols, too,
2385	# and global variables created in xs	3384	# and global variables created in xs
2386	#Symbol::delete_package __PACKAGE__;	3385	#Symbol::delete_package __PACKAGE__;
2387		3386
		3387	warn "unload completed, starting to reload now";
		3388
2388	warn "reloading cf.pm";	3389	warn "reloading cf.pm";
2389	require cf;	3390	require cf;
2390	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3391	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2391		3392
2392	warn "load config and database again";	3393	warn "loading config and database again";
2393	cf::cfg_load;	3394	cf::reload_config;
2394	cf::db_load;
2395		3395
2396	warn "load extensions";	3396	warn "loading extensions";
2397	cf::load_extensions;	3397	cf::load_extensions;
2398		3398
2399	warn "reattach attachments to objects/players";	3399	warn "reattaching attachments to objects/players";
2400	_global_reattach;	3400	_global_reattach; # objects, sockets
2401	warn "reattach attachments to maps";	3401	warn "reattaching attachments to maps";
2402	reattach $_ for values %MAP;	3402	reattach $_ for values %MAP;
2403	};	3403	warn "reattaching attachments to players";
		3404	reattach $_ for values %PLAYER;
2404		3405
2405	if ($@) {	3406	warn "leaving sync_job";
		3407
		3408	1
		3409	} or do {
2406	warn $@;	3410	warn $@;
2407	warn "error while reloading, exiting.";	3411	warn "error while reloading, exiting.";
2408	exit 1;	3412	exit 1;
2409	}	3413	};
2410		3414
2411	warn "reloaded";	3415	warn "reloaded";
2412	};	3416	};
2413		3417
2414	#############################################################################	3418	our $RELOAD_WATCHER; # used only during reload
2415		3419
2416	unless ($LINK_MAP) {	3420	sub reload_perl() {
2417	$LINK_MAP = cf::map::new;	3421	# doing reload synchronously and two reloads happen back-to-back,
		3422	# coro crashes during coro_state_free->destroy here.
2418		3423
2419	$LINK_MAP->width (41);	3424	$RELOAD_WATCHER ||= Event->timer (
2420	$LINK_MAP->height (41);	3425	reentrant => 0,
2421	$LINK_MAP->alloc;
2422	$LINK_MAP->path ("{link}");
2423	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2424	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2425
2426	# dirty hack because... archetypes are not yet loaded
2427	Event->timer (
2428	after => 10,	3426	after => 0,
		3427	data => WF_AUTOCANCEL,
2429	cb => sub {	3428	cb => sub {
2430	$_[0]->w->cancel;	3429	do_reload_perl;
2431		3430	undef $RELOAD_WATCHER;
2432	# provide some exits "home"
2433	my $exit = cf::object::new "exit";
2434
2435	$exit->slaying ($EMERGENCY_POSITION->[0]);
2436	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2437	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2438
2439	$LINK_MAP->insert ($exit->clone, 19, 19);
2440	$LINK_MAP->insert ($exit->clone, 19, 20);
2441	$LINK_MAP->insert ($exit->clone, 19, 21);
2442	$LINK_MAP->insert ($exit->clone, 20, 19);
2443	$LINK_MAP->insert ($exit->clone, 20, 21);
2444	$LINK_MAP->insert ($exit->clone, 21, 19);
2445	$LINK_MAP->insert ($exit->clone, 21, 20);
2446	$LINK_MAP->insert ($exit->clone, 21, 21);
2447
2448	$exit->destroy;
2449	});	3431	},
2450		3432	);
2451	$LINK_MAP->{deny_save} = 1;
2452	$LINK_MAP->{deny_reset} = 1;
2453
2454	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2455	}	3433	}
2456		3434
2457	register_command "reload" => sub {	3435	register_command "reload" => sub {
2458	my ($who, $arg) = @_;	3436	my ($who, $arg) = @_;
2459		3437
2460	if ($who->flag (FLAG_WIZ)) {	3438	if ($who->flag (FLAG_WIZ)) {
2461	$who->message ("start of reload.");
2462	reload;
2463	$who->message ("end of reload.");	3439	$who->message ("reloading server.");
		3440	async { reload_perl };
2464	}	3441	}
2465	};	3442	};
2466		3443
2467	unshift @INC, $LIBDIR;	3444	unshift @INC, $LIBDIR;
		3445
		3446	my $bug_warning = 0;
		3447
		3448	our @WAIT_FOR_TICK;
		3449	our @WAIT_FOR_TICK_BEGIN;
		3450
		3451	sub wait_for_tick {
		3452	return unless $TICK_WATCHER->is_active;
		3453	return if $Coro::current == $Coro::main;
		3454
		3455	my $signal = new Coro::Signal;
		3456	push @WAIT_FOR_TICK, $signal;
		3457	$signal->wait;
		3458	}
		3459
		3460	sub wait_for_tick_begin {
		3461	return unless $TICK_WATCHER->is_active;
		3462	return if $Coro::current == $Coro::main;
		3463
		3464	my $signal = new Coro::Signal;
		3465	push @WAIT_FOR_TICK_BEGIN, $signal;
		3466	$signal->wait;
		3467	}
2468		3468
2469	$TICK_WATCHER = Event->timer (	3469	$TICK_WATCHER = Event->timer (
2470	reentrant => 0,	3470	reentrant => 0,
		3471	parked => 1,
2471	prio => 0,	3472	prio => 0,
2472	at => $NEXT_TICK || $TICK,	3473	at => $NEXT_TICK || $TICK,
2473	data => WF_AUTOCANCEL,	3474	data => WF_AUTOCANCEL,
2474	cb => sub {	3475	cb => sub {
		3476	if ($Coro::current != $Coro::main) {
		3477	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3478	unless ++$bug_warning > 10;
		3479	return;
		3480	}
		3481
2475	$NOW = Event::time;	3482	$NOW = $tick_start = Event::time;
2476		3483
2477	cf::server_tick; # one server iteration	3484	cf::server_tick; # one server iteration
		3485
2478	$RUNTIME += $TICK;	3486	$RUNTIME += $TICK;
2479	$NEXT_TICK += $TICK;	3487	$NEXT_TICK += $TICK;
2480		3488
2481	$WAIT_FOR_TICK->broadcast;	3489	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2482	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3490	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3491	Coro::async_pool {
		3492	write_runtime
		3493	or warn "ERROR: unable to write runtime file: $!";
		3494	};
		3495	}
		3496
		3497	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3498	$sig->send;
		3499	}
		3500	while (my $sig = shift @WAIT_FOR_TICK) {
		3501	$sig->send;
		3502	}
		3503
		3504	$NOW = Event::time;
2483		3505
2484	# if we are delayed by four ticks or more, skip them all	3506	# if we are delayed by four ticks or more, skip them all
2485	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3507	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2486		3508
2487	$TICK_WATCHER->at ($NEXT_TICK);	3509	$TICK_WATCHER->at ($NEXT_TICK);
2488	$TICK_WATCHER->start;	3510	$TICK_WATCHER->start;
		3511
		3512	$LOAD = ($NOW - $tick_start) / $TICK;
		3513	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3514
		3515	_post_tick;
2489	},	3516	},
2490	);	3517	);
2491		3518
		3519	{
		3520	BDB::min_parallel 8;
2492	IO::AIO::max_poll_time $TICK * 0.2;	3521	BDB::max_poll_time $TICK * 0.1;
2493		3522	$BDB_POLL_WATCHER = Event->io (
2494	Event->io (	3523	reentrant => 0,
2495	fd => IO::AIO::poll_fileno,	3524	fd => BDB::poll_fileno,
2496	poll => 'r',	3525	poll => 'r',
2497	prio => 5,	3526	prio => 0,
2498	data => WF_AUTOCANCEL,
2499	cb => \&IO::AIO::poll_cb,
2500	);
2501
2502	Event->timer (
2503	data => WF_AUTOCANCEL,	3527	data => WF_AUTOCANCEL,
		3528	cb => \&BDB::poll_cb,
		3529	);
		3530
		3531	BDB::set_sync_prepare {
		3532	my $status;
		3533	my $current = $Coro::current;
		3534	(
		3535	sub {
		3536	$status = $!;
		3537	$current->ready; undef $current;
		3538	},
		3539	sub {
		3540	Coro::schedule while defined $current;
		3541	$! = $status;
		3542	},
		3543	)
		3544	};
		3545
		3546	unless ($DB_ENV) {
		3547	$DB_ENV = BDB::db_env_create;
		3548
		3549	cf::sync_job {
		3550	eval {
		3551	BDB::db_env_open
		3552	$DB_ENV,
		3553	$BDBDIR,
		3554	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3555	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3556	0666;
		3557
		3558	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3559
		3560	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3561	| BDB::LOG_AUTOREMOVE, 1);
		3562	$DB_ENV->set_lk_detect;
		3563	};
		3564
		3565	cf::cleanup "db_env_open(db): $@" if $@;
		3566	};
		3567	}
		3568
		3569	$BDB_CHECKPOINT_WATCHER = Event->timer (
2504	after => 0,	3570	after => 11,
2505	interval => 10,	3571	interval => 60,
		3572	hard => 1,
		3573	prio => 0,
		3574	data => WF_AUTOCANCEL,
2506	cb => sub {	3575	cb => sub {
2507	(Coro::unblock_sub {	3576	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
2508	write_runtime	3577	},
2509	or warn "ERROR: unable to write runtime file: $!";	3578	);
		3579	$BDB_TRICKLE_WATCHER = Event->timer (
		3580	after => 5,
		3581	interval => 10,
		3582	hard => 1,
		3583	prio => 0,
		3584	data => WF_AUTOCANCEL,
		3585	cb => sub {
		3586	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3587	},
		3588	);
		3589	}
		3590
		3591	{
		3592	IO::AIO::min_parallel 8;
		3593
		3594	undef $Coro::AIO::WATCHER;
		3595	IO::AIO::max_poll_time $TICK * 0.1;
		3596	$AIO_POLL_WATCHER = Event->io (
		3597	reentrant => 0,
		3598	data => WF_AUTOCANCEL,
		3599	fd => IO::AIO::poll_fileno,
		3600	poll => 'r',
		3601	prio => 6,
		3602	cb => \&IO::AIO::poll_cb,
		3603	);
		3604	}
		3605
		3606	my $_log_backtrace;
		3607
		3608	sub _log_backtrace {
		3609	my ($msg, @addr) = @_;
		3610
		3611	$msg =~ s/\n//;
		3612
		3613	# limit the # of concurrent backtraces
		3614	if ($_log_backtrace < 2) {
		3615	++$_log_backtrace;
		3616	async {
		3617	my @bt = fork_call {
		3618	@addr = map { sprintf "%x", $_ } @addr;
		3619	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3620	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3621	or die "addr2line: $!";
		3622
		3623	my @funcs;
		3624	my @res = <$fh>;
		3625	chomp for @res;
		3626	while (@res) {
		3627	my ($func, $line) = splice @res, 0, 2, ();
		3628	push @funcs, "[$func] $line";
		3629	}
		3630
		3631	@funcs
		3632	};
		3633
		3634	LOG llevInfo, "[ABT] $msg\n";
		3635	LOG llevInfo, "[ABT] $_\n" for @bt;
		3636	--$_log_backtrace;
2510	})->();	3637	};
		3638	} else {
		3639	LOG llevInfo, "[ABT] $msg\n";
		3640	LOG llevInfo, "[ABT] [suppressed]\n";
2511	},	3641	}
2512	);	3642	}
		3643
		3644	# load additional modules
		3645	use cf::pod;
2513		3646
2514	END { cf::emergency_save }	3647	END { cf::emergency_save }
2515		3648
2516	1	3649	1
2517		3650

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