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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.160 by root, Wed Jan 10 22:54:06 2007 UTC vs.
Revision 1.365 by root, Tue Sep 11 13:27:56 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
		59	our %EXT_MAP = (); # pluggable maps
42		60
		61	our $RELOAD; # number of reloads so far
43	our @EVENT;	62	our @EVENT;
44	our $LIBDIR = datadir . "/ext";
45		63
46	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(!)
47	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
48	our $NEXT_TICK;	80	our $NEXT_TICK;
49	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;
50		88
51	our %CFG;	89	our %CFG;
52		90
53	our $UPTIME; $UPTIME ||= time;	91	our $UPTIME; $UPTIME ||= time;
54	our $RUNTIME;	92	our $RUNTIME;
55		93
56	our %PLAYER; # all users	94	our (%PLAYER, %PLAYER_LOADING); # all users
57	our %MAP; # all maps	95	our (%MAP, %MAP_LOADING ); # all maps
58	our $LINK_MAP; # the special {link} map	96	our $LINK_MAP; # the special {link} map, which is always available
59	our $RANDOM_MAPS = cf::localdir . "/random";
60		97
61	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	98	# used to convert map paths into valid unix filenames by replacing / by ∕
62	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 $tick_start; # for load detecting purposes
63		104
64	binmode STDOUT;	105	binmode STDOUT;
65	binmode STDERR;	106	binmode STDERR;
66		107
67	# read virtual server time, if available	108	# read virtual server time, if available
68	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	109	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
69	open my $fh, "<", cf::localdir . "/runtime"	110	open my $fh, "<", "$LOCALDIR/runtime"
70	or die "unable to read runtime file: $!";	111	or die "unable to read runtime file: $!";
71	$RUNTIME = <$fh> + 0.;	112	$RUNTIME = <$fh> + 0.;
72	}	113	}
73		114
74	mkdir cf::localdir;	115	mkdir $_
75	mkdir cf::localdir . "/" . cf::playerdir;	116	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
76	mkdir cf::localdir . "/" . cf::tmpdir;
77	mkdir cf::localdir . "/" . cf::uniquedir;
78	mkdir $RANDOM_MAPS;
79		117
80	# a special map that is always available
81	our $LINK_MAP;
82	our $EMERGENCY_POSITION;	118	our $EMERGENCY_POSITION;
		119
		120	sub cf::map::normalise;
83		121
84	#############################################################################	122	#############################################################################
85		123
86	=head2 GLOBAL VARIABLES	124	=head2 GLOBAL VARIABLES
87		125
…		…
94	=item $cf::RUNTIME	132	=item $cf::RUNTIME
95		133
96	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
97	every server tick.	135	every server tick.
98		136
99	=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
100		140
101	The perl library directory, where extensions and cf-specific modules can	141	Various directories - "/etc", read-only install directory, perl-library
102	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.
103		145
104	=item $cf::NOW	146	=item $cf::NOW
105		147
106	The time of the last (current) server tick.	148	The time of the last (current) server tick.
107		149
108	=item $cf::TICK	150	=item $cf::TICK
109		151
110	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.
111		163
112	=item %cf::CFG	164	=item %cf::CFG
113		165
114	Configuration for the server, loaded from C</etc/crossfire/config>, or	166	Configuration for the server, loaded from C</etc/crossfire/config>, or
115	from wherever your confdir points to.	167	from wherever your confdir points to.
116		168
117	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	169	=item cf::wait_for_tick, cf::wait_for_tick_begin
118		170
119	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
120	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
121	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.
122	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.
123		180
124	=back	181	=back
125		182
126	=cut	183	=cut
127		184
128	BEGIN {	185	BEGIN {
129	*CORE::GLOBAL::warn = sub {	186	*CORE::GLOBAL::warn = sub {
130	my $msg = join "", @_;	187	my $msg = join "", @_;
131	utf8::encode $msg;
132		188
133	$msg .= "\n"	189	$msg .= "\n"
134	unless $msg =~ /\n$/;	190	unless $msg =~ /\n$/;
		191
		192	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
135		193
136	LOG llevError, $msg;	194	LOG llevError, $msg;
137	};	195	};
138	}	196	}
139		197
140	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	198	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
141	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	199	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
142	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	200	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
143	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	201	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
144	@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';
145	@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)
146		205
147	# 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
148	# within the Safe compartment.	207	# within the Safe compartment.
149	for my $pkg (qw(	208	for my $pkg (qw(
150	cf::global cf::attachable	209	cf::global cf::attachable
…		…
158	}	217	}
159		218
160	$Event::DIED = sub {	219	$Event::DIED = sub {
161	warn "error in event callback: @_";	220	warn "error in event callback: @_";
162	};	221	};
		222
		223	#############################################################################
163		224
164	=head2 UTILITY FUNCTIONS	225	=head2 UTILITY FUNCTIONS
165		226
166	=over 4	227	=over 4
167		228
…		…
186	$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;
187	$d	248	$d
188	} || "[unable to dump $_[0]: '$@']";	249	} || "[unable to dump $_[0]: '$@']";
189	}	250	}
190		251
191	use JSON::Syck (); # TODO# replace by JSON::PC once working
192
193	=item $ref = cf::from_json $json	252	=item $ref = cf::from_json $json
194		253
195	Converts a JSON string into the corresponding perl data structure.	254	Converts a JSON string into the corresponding perl data structure.
196		255
197	=cut
198
199	sub from_json($) {
200	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
201	JSON::Syck::Load $_[0]
202	}
203
204	=item $json = cf::to_json $ref	256	=item $json = cf::to_json $ref
205		257
206	Converts a perl data structure into its JSON representation.	258	Converts a perl data structure into its JSON representation.
207		259
208	=cut	260	=cut
209		261
210	sub to_json($) {	262	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
211	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	263
212	JSON::Syck::Dump $_[0]	264	sub to_json ($) { $json_coder->encode ($_[0]) }
213	}	265	sub from_json ($) { $json_coder->decode ($_[0]) }
214		266
215	=item cf::lock_wait $string	267	=item cf::lock_wait $string
216		268
217	Wait until the given lock is available. See cf::lock_acquire.	269	Wait until the given lock is available. See cf::lock_acquire.
218		270
…		…
221	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
222	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,
223	for example when the coroutine gets canceled), the lock is automatically	275	for example when the coroutine gets canceled), the lock is automatically
224	returned.	276	returned.
225		277
		278	Locks are *not* recursive, locking from the same coro twice results in a
		279	deadlocked coro.
		280
226	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
227	uses map_find and cf::map::load uses map_load).	282	uses map_find and cf::map::load uses map_load).
228		283
		284	=item $locked = cf::lock_active $string
		285
		286	Return true if the lock is currently active, i.e. somebody has locked it.
		287
229	=cut	288	=cut
230		289
231	our %LOCK;	290	our %LOCK;
		291	our %LOCKER;#d#
232		292
233	sub lock_wait($) {	293	sub lock_wait($) {
234	my ($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#
235		300
236	# wait for lock, if any	301	# wait for lock, if any
237	while ($LOCK{$key}) {	302	while ($LOCK{$key}) {
238	push @{ $LOCK{$key} }, $Coro::current;	303	push @{ $LOCK{$key} }, $Coro::current;
239	Coro::schedule;	304	Coro::schedule;
…		…
245		310
246	# wait, to be sure we are not locked	311	# wait, to be sure we are not locked
247	lock_wait $key;	312	lock_wait $key;
248		313
249	$LOCK{$key} = [];	314	$LOCK{$key} = [];
		315	$LOCKER{$key} = $Coro::current;#d#
250		316
251	Coro::guard {	317	Coro::guard {
		318	delete $LOCKER{$key};#d#
252	# wake up all waiters, to be on the safe side	319	# wake up all waiters, to be on the safe side
253	$_->ready for @{ delete $LOCK{$key} };	320	$_->ready for @{ delete $LOCK{$key} };
254	}	321	}
255	}	322	}
256		323
		324	sub lock_active($) {
		325	my ($key) = @_;
		326
		327	! ! $LOCK{$key}
		328	}
		329
257	sub freeze_mainloop {	330	sub freeze_mainloop {
258	return unless $TICK_WATCHER->is_active;	331	return unless $TICK_WATCHER->is_active;
259		332
260	my $guard = Coro::guard { $TICK_WATCHER->start };	333	my $guard = Coro::guard {
		334	$TICK_WATCHER->start;
		335	};
261	$TICK_WATCHER->stop;	336	$TICK_WATCHER->stop;
262	$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;
263	}	394	}
264		395
265	=item cf::async { BLOCK }	396	=item cf::async { BLOCK }
266		397
267	Currently the same as Coro::async_pool, meaning you cannot use	398	Currently the same as Coro::async_pool, meaning you cannot use
…		…
272		403
273	BEGIN { *async = \&Coro::async_pool }	404	BEGIN { *async = \&Coro::async_pool }
274		405
275	=item cf::sync_job { BLOCK }	406	=item cf::sync_job { BLOCK }
276		407
277	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)
278	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
279	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.
280		412
281	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
282	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
283	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
284	fast or be very important.	416	fast or be very important.
…		…
287		419
288	sub sync_job(&) {	420	sub sync_job(&) {
289	my ($job) = @_;	421	my ($job) = @_;
290		422
291	if ($Coro::current == $Coro::main) {	423	if ($Coro::current == $Coro::main) {
		424	my $time = Event::time;
		425
292	# this is the main coro, too bad, we have to block	426	# this is the main coro, too bad, we have to block
293	# till the operation succeeds, freezing the server :/	427	# till the operation succeeds, freezing the server :/
294		428
295	# TODO: use suspend/resume instead	429	# TODO: use suspend/resume instead
296	# (but this is cancel-safe)	430	# (but this is cancel-safe)
…		…
307		441
308	while ($busy) {	442	while ($busy) {
309	Coro::cede or Event::one_event;	443	Coro::cede or Event::one_event;
310	}	444	}
311		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
312	wantarray ? @res : $res[0]	453	wantarray ? @res : $res[0]
313	} else {	454	} else {
314	# we are in another coroutine, how wonderful, everything just works	455	# we are in another coroutine, how wonderful, everything just works
315		456
316	$job->()	457	$job->()
…		…
335	$EXT_CORO{$coro+0} = $coro;	476	$EXT_CORO{$coro+0} = $coro;
336		477
337	$coro	478	$coro
338	}	479	}
339		480
340	sub write_runtime {	481	=item fork_call { }, $args
341	my $runtime = cf::localdir . "/runtime";
342		482
343	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	483	Executes the given code block with the given arguments in a seperate
344	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.
345		487
346	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	488	=cut
347	(aio_write $fh, 0, (length $value), $value, 0) <= 0
348	and return;
349		489
350	aio_fsync $fh	490	sub fork_call(&@) {
351	and return;	491	my ($cb, @args) = @_;
352		492
353	close $fh	493	# we seemingly have to make a local copy of the whole thing,
354	or return;	494	# otherwise perl prematurely frees the stuff :/
		495	# TODO: investigate and fix (likely this will be rather laborious)
355		496
356	aio_rename "$runtime~", $runtime	497	my @res = Coro::Util::fork_eval {
357	and return;	498	reset_signals;
		499	&$cb
		500	}, @args;
358		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
359	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 });
360	}	641	}
361		642
362	=back	643	=back
363		644
364	=cut	645	=cut
365
366	#############################################################################
367
368	package cf::path;
369
370	use overload
371	'""' => \&as_string;
372
373	# used to convert map paths into valid unix filenames by repalcing / by ∕
374	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
375
376	sub new {
377	my ($class, $path, $base) = @_;
378
379	$path = $path->as_string if ref $path;
380
381	my $self = bless { }, $class;
382
383	# {... are special paths that are not touched
384	# ?xxx/... are special absolute paths
385	# ?random/... random maps
386	# /! non-realised random map exit
387	# /... normal maps
388	# ~/... per-player maps without a specific player (DO NOT USE)
389	# ~user/... per-player map of a specific user
390
391	$path =~ s/$PATH_SEP/\//go;
392
393	if ($path =~ /^{/) {
394	# fine as it is
395	} elsif ($path =~ s{^\?random/}{}) {
396	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
397	$self->{random} = cf::from_json $data;
398	} else {
399	if ($path =~ s{^~([^/]+)?}{}) {
400	$self->{user_rel} = 1;
401
402	if (defined $1) {
403	$self->{user} = $1;
404	} elsif ($base =~ m{^~([^/]+)/}) {
405	$self->{user} = $1;
406	} else {
407	warn "cannot resolve user-relative path without user <$path,$base>\n";
408	}
409	} elsif ($path =~ /^\//) {
410	# already absolute
411	} else {
412	$base =~ s{[^/]+/?$}{};
413	return $class->new ("$base/$path");
414	}
415
416	for ($path) {
417	redo if s{/\.?/}{/};
418	redo if s{/[^/]+/\.\./}{/};
419	}
420	}
421
422	$self->{path} = $path;
423
424	$self
425	}
426
427	# the name / primary key / in-game path
428	sub as_string {
429	my ($self) = @_;
430
431	$self->{user_rel} ? "~$self->{user}$self->{path}"
432	: $self->{random} ? "?random/$self->{path}"
433	: $self->{path}
434	}
435
436	# the displayed name, this is a one way mapping
437	sub visible_name {
438	my ($self) = @_;
439
440	# if (my $rmp = $self->{random}) {
441	# # todo: be more intelligent about this
442	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
443	# } else {
444	$self->as_string
445	# }
446	}
447
448	# escape the /'s in the path
449	sub _escaped_path {
450	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
451	$path
452	}
453
454	# the original (read-only) location
455	sub load_path {
456	my ($self) = @_;
457
458	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
459	}
460
461	# the temporary/swap location
462	sub save_path {
463	my ($self) = @_;
464
465	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
466	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
467	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
468	}
469
470	# the unique path, might be eq to save_path
471	sub uniq_path {
472	my ($self) = @_;
473
474	$self->{user_rel} || $self->{random}
475	? undef
476	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
477	}
478
479	# return random map parameters, or undef
480	sub random_map_params {
481	my ($self) = @_;
482
483	$self->{random}
484	}
485
486	# this is somewhat ugly, but style maps do need special treatment
487	sub is_style_map {
488	$_[0]{path} =~ m{^/styles/}
489	}
490
491	package cf;
492		646
493	#############################################################################	647	#############################################################################
494		648
495	=head2 ATTACHABLE OBJECTS	649	=head2 ATTACHABLE OBJECTS
496		650
…		…
498	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")
499	to it. All such attachable objects support the following methods.	653	to it. All such attachable objects support the following methods.
500		654
501	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>
502	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
503	crossfire+).	657	Crossfire TRT).
504		658
505	=over 4	659	=over 4
506		660
507	=item $attachable->attach ($attachment, key => $value...)	661	=item $attachable->attach ($attachment, key => $value...)
508		662
…		…
622	our @CB_TYPE = (); # registry for type (cf-object class) based events	776	our @CB_TYPE = (); # registry for type (cf-object class) based events
623	our @CB_MAP = ();	777	our @CB_MAP = ();
624		778
625	my %attachment;	779	my %attachment;
626		780
		781	sub cf::attachable::thawer_merge {
		782	# simply override everything except _meta
		783	local $_[0]{_meta};
		784	%{$_[0]} = %{$_[1]};
		785	}
		786
627	sub _attach_cb($$$$) {	787	sub _attach_cb($$$$) {
628	my ($registry, $event, $prio, $cb) = @_;	788	my ($registry, $event, $prio, $cb) = @_;
629		789
630	use sort 'stable';	790	use sort 'stable';
631		791
…		…
665	$registry = $CB_TYPE[$object_type] ||= [];	825	$registry = $CB_TYPE[$object_type] ||= [];
666		826
667	} elsif ($type eq "subtype") {	827	} elsif ($type eq "subtype") {
668	defined $object_type or Carp::croak "subtype specified without type";	828	defined $object_type or Carp::croak "subtype specified without type";
669	my $object_subtype = shift @arg;	829	my $object_subtype = shift @arg;
670	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	830	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
671		831
672	} elsif ($type eq "package") {	832	} elsif ($type eq "package") {
673	my $pkg = shift @arg;	833	my $pkg = shift @arg;
674		834
675	while (my ($name, $id) = each %cb_id) {	835	while (my ($name, $id) = each %cb_id) {
…		…
704	_attach $registry, $klass, @attach;	864	_attach $registry, $klass, @attach;
705	}	865	}
706		866
707	$obj->{$name} = \%arg;	867	$obj->{$name} = \%arg;
708	} else {	868	} else {
709	warn "object uses attachment '$name' that is not available, postponing.\n";	869	warn "object uses attachment '$name' which is not available, postponing.\n";
710	}	870	}
711		871
712	$obj->{_attachment}{$name} = undef;	872	$obj->{_attachment}{$name} = undef;
713	}	873	}
714		874
…		…
716	if (ref $_[0]) {	876	if (ref $_[0]) {
717	_object_attach @_;	877	_object_attach @_;
718	} else {	878	} else {
719	_attach shift->_attach_registry, @_;	879	_attach shift->_attach_registry, @_;
720	}	880	}
		881	_recalc_want;
721	};	882	};
722		883
723	# all those should be optimised	884	# all those should be optimised
724	sub cf::attachable::detach {	885	sub cf::attachable::detach {
725	my ($obj, $name) = @_;	886	my ($obj, $name) = @_;
…		…
728	delete $obj->{_attachment}{$name};	889	delete $obj->{_attachment}{$name};
729	reattach ($obj);	890	reattach ($obj);
730	} else {	891	} else {
731	Carp::croak "cannot, currently, detach class attachments";	892	Carp::croak "cannot, currently, detach class attachments";
732	}	893	}
		894	_recalc_want;
733	};	895	};
734		896
735	sub cf::attachable::attached {	897	sub cf::attachable::attached {
736	my ($obj, $name) = @_;	898	my ($obj, $name) = @_;
737		899
…		…
752	";	914	";
753	die if $@;	915	die if $@;
754	}	916	}
755		917
756	our $override;	918	our $override;
757	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?
758		920
759	sub override {	921	sub override {
760	$override = 1;	922	$override = 1;
761	@invoke_results = ();	923	@INVOKE_RESULTS = (@_);
762	}	924	}
763		925
764	sub do_invoke {	926	sub do_invoke {
765	my $event = shift;	927	my $event = shift;
766	my $callbacks = shift;	928	my $callbacks = shift;
767		929
768	@invoke_results = ();	930	@INVOKE_RESULTS = ();
769		931
770	local $override;	932	local $override;
771		933
772	for (@$callbacks) {	934	for (@$callbacks) {
773	eval { &{$_->[1]} };	935	eval { &{$_->[1]} };
…		…
790		952
791	Generate an object-specific event with the given arguments.	953	Generate an object-specific event with the given arguments.
792		954
793	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
794	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
795	results (if you must, access C<@cf::invoke_results> directly).	957	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
796		958
797	=back	959	=back
798		960
799	=cut	961	=cut
800		962
801	#############################################################################	963	#############################################################################
802	# 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	}
803		976
804	sub reattach {	977	sub reattach {
805	# basically do the same as instantiate, without calling instantiate	978	# basically do the same as instantiate, without calling instantiate
806	my ($obj) = @_;	979	my ($obj) = @_;
		980
		981	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
807		982
808	my $registry = $obj->registry;	983	my $registry = $obj->registry;
809		984
810	@$registry = ();	985	@$registry = ();
811		986
…		…
850	);	1025	);
851		1026
852	sub object_freezer_save {	1027	sub object_freezer_save {
853	my ($filename, $rdata, $objs) = @_;	1028	my ($filename, $rdata, $objs) = @_;
854		1029
		1030	my $guard = cf::lock_acquire "io";
		1031
855	sync_job {	1032	sync_job {
856	if (length $$rdata) {	1033	if (length $$rdata) {
		1034	utf8::decode (my $decname = $filename);
857	warn sprintf "saving %s (%d,%d)\n",	1035	warn sprintf "saving %s (%d,%d)\n",
858	$filename, length $$rdata, scalar @$objs;	1036	$decname, length $$rdata, scalar @$objs;
859		1037
860	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1038	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
861	chmod SAVE_MODE, $fh;	1039	chmod SAVE_MODE, $fh;
862	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1040	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
863	aio_fsync $fh;	1041	aio_fsync $fh if $cf::USE_FSYNC;
864	close $fh;	1042	close $fh;
865		1043
866	if (@$objs) {	1044	if (@$objs) {
867	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) {
868	chmod SAVE_MODE, $fh;	1046	chmod SAVE_MODE, $fh;
869	my $data = Storable::nfreeze { version => 1, objs => $objs };	1047	my $data = Storable::nfreeze { version => 1, objs => $objs };
870	aio_write $fh, 0, (length $data), $data, 0;	1048	aio_write $fh, 0, (length $data), $data, 0;
871	aio_fsync $fh;	1049	aio_fsync $fh if $cf::USE_FSYNC;
872	close $fh;	1050	close $fh;
873	aio_rename "$filename.pst~", "$filename.pst";	1051	aio_rename "$filename.pst~", "$filename.pst";
874	}	1052	}
875	} else {	1053	} else {
876	aio_unlink "$filename.pst";	1054	aio_unlink "$filename.pst";
…		…
882	}	1060	}
883	} else {	1061	} else {
884	aio_unlink $filename;	1062	aio_unlink $filename;
885	aio_unlink "$filename.pst";	1063	aio_unlink "$filename.pst";
886	}	1064	}
887	}	1065	};
		1066
		1067	undef $guard;
888	}	1068	}
889		1069
890	sub object_freezer_as_string {	1070	sub object_freezer_as_string {
891	my ($rdata, $objs) = @_;	1071	my ($rdata, $objs) = @_;
892		1072
…		…
897		1077
898	sub object_thawer_load {	1078	sub object_thawer_load {
899	my ($filename) = @_;	1079	my ($filename) = @_;
900		1080
901	my ($data, $av);	1081	my ($data, $av);
		1082
		1083	my $guard = cf::lock_acquire "io";
902		1084
903	(aio_load $filename, $data) >= 0	1085	(aio_load $filename, $data) >= 0
904	or return;	1086	or return;
905		1087
906	unless (aio_stat "$filename.pst") {	1088	unless (aio_stat "$filename.pst") {
907	(aio_load "$filename.pst", $av) >= 0	1089	(aio_load "$filename.pst", $av) >= 0
908	or return;	1090	or return;
		1091
		1092	undef $guard;
909	$av = eval { (Storable::thaw $av)->{objs} };	1093	$av = eval { (Storable::thaw $av)->{objs} };
910	}	1094	}
911		1095
		1096	utf8::decode (my $decname = $filename);
912	warn sprintf "loading %s (%d)\n",	1097	warn sprintf "loading %s (%d,%d)\n",
913	$filename, length $data, scalar @{$av || []};#d#	1098	$decname, length $data, scalar @{$av || []};
		1099
914	return ($data, $av);	1100	($data, $av)
915	}	1101	}
		1102
		1103	=head2 COMMAND CALLBACKS
		1104
		1105	=over 4
		1106
		1107	=cut
916		1108
917	#############################################################################	1109	#############################################################################
918	# command handling &c	1110	# command handling &c
919		1111
920	=item cf::register_command $name => \&callback($ob,$args);	1112	=item cf::register_command $name => \&callback($ob,$args);
…		…
933	push @{ $COMMAND{$name} }, [$caller, $cb];	1125	push @{ $COMMAND{$name} }, [$caller, $cb];
934	}	1126	}
935		1127
936	=item cf::register_extcmd $name => \&callback($pl,$packet);	1128	=item cf::register_extcmd $name => \&callback($pl,$packet);
937		1129
938	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.
939		1135
940	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
941	called.	1137	called.
942		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
943	=cut	1150	=cut
944		1151
945	sub register_extcmd {	1152	sub register_extcmd {
946	my ($name, $cb) = @_;	1153	my ($name, $cb) = @_;
947		1154
948	$EXTCMD{$name} = $cb;	1155	$EXTCMD{$name} = $cb;
		1156	}
		1157
		1158	sub register_exticmd {
		1159	my ($name, $cb) = @_;
		1160
		1161	$EXTICMD{$name} = $cb;
949	}	1162	}
950		1163
951	cf::player->attach (	1164	cf::player->attach (
952	on_command => sub {	1165	on_command => sub {
953	my ($pl, $name, $params) = @_;	1166	my ($pl, $name, $params) = @_;
…		…
962	cf::override;	1175	cf::override;
963	},	1176	},
964	on_extcmd => sub {	1177	on_extcmd => sub {
965	my ($pl, $buf) = @_;	1178	my ($pl, $buf) = @_;
966		1179
967	my $msg = eval { from_json $buf };	1180	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
968		1181
969	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
970	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1190	if (my $cb = $EXTCMD{$type}) {
971	if (my %reply = $cb->($pl, $msg)) {	1191	@reply = $cb->($pl, @payload);
972	$pl->ext_reply ($msg->{msgid}, %reply);
973	}
974	}	1192	}
		1193
		1194	$pl->ext_reply ($reply, @reply)
		1195	if $reply;
		1196
975	} else {	1197	} else {
976	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1198	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
977	}	1199	}
978		1200
979	cf::override;	1201	cf::override;
980	},	1202	},
981	);	1203	);
982		1204
983	sub load_extension {
984	my ($path) = @_;
985
986	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
987	my $base = $1;
988	my $pkg = $1;
989	$pkg =~ s/[^[:word:]]/_/g;
990	$pkg = "ext::$pkg";
991
992	warn "... loading '$path' into '$pkg'\n";
993
994	open my $fh, "<:utf8", $path
995	or die "$path: $!";
996
997	my $source =
998	"package $pkg; use strict; use utf8;\n"
999	. "#line 1 \"$path\"\n{\n"
1000	. (do { local $/; <$fh> })
1001	. "\n};\n1";
1002
1003	eval $source
1004	or die $@ ? "$path: $@\n"
1005	: "extension disabled.\n";
1006
1007	push @EXTS, $pkg;
1008	}
1009
1010	sub load_extensions {	1205	sub load_extensions {
		1206	cf::sync_job {
		1207	my %todo;
		1208
1011	for my $ext (<$LIBDIR/*.ext>) {	1209	for my $path (<$LIBDIR/*.ext>) {
1012	next unless -r $ext;	1210	next unless -r $path;
1013	eval {	1211
1014	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;
1015	1	1269	}
1016	} or warn "$ext not loaded: $@";	1270
		1271	skip:
		1272	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1273	unless $progress;
		1274	}
1017	}	1275	};
1018	}	1276	}
1019		1277
1020	#############################################################################	1278	#############################################################################
1021	# load/save/clean perl data associated with a map
1022		1279
1023	*cf::mapsupport::on_clean = sub {	1280	=back
1024	my ($map) = @_;
1025
1026	my $path = $map->tmpname;
1027	defined $path or return;
1028
1029	unlink "$path.pst";
1030	};
1031
1032	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1033
1034	#############################################################################
1035		1281
1036	=head2 CORE EXTENSIONS	1282	=head2 CORE EXTENSIONS
1037		1283
1038	Functions and methods that extend core crossfire objects.	1284	Functions and methods that extend core crossfire objects.
1039		1285
…		…
1045		1291
1046	=head3 cf::player	1292	=head3 cf::player
1047		1293
1048	=over 4	1294	=over 4
1049		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
1050	=item cf::player::find $login	1310	=item cf::player::find $login
1051		1311
1052	Returns the given player object, loading it if necessary (might block).	1312	Returns the given player object, loading it if necessary (might block).
1053		1313
1054	=cut	1314	=cut
1055		1315
1056	sub playerdir($) {	1316	sub playerdir($) {
1057	cf::localdir	1317	"$PLAYERDIR/"
1058	. "/"
1059	. cf::playerdir
1060	. "/"
1061	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1318	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1062	}	1319	}
1063		1320
1064	sub path($) {	1321	sub path($) {
1065	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1322	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1066		1323
1067	(playerdir $login) . "/$login.pl"	1324	(playerdir $login) . "/playerdata"
1068	}	1325	}
1069		1326
1070	sub find_active($) {	1327	sub find_active($) {
1071	$cf::PLAYER{$_[0]}	1328	$cf::PLAYER{$_[0]}
1072	and $cf::PLAYER{$_[0]}->active	1329	and $cf::PLAYER{$_[0]}->active
…		…
1075		1332
1076	sub exists($) {	1333	sub exists($) {
1077	my ($login) = @_;	1334	my ($login) = @_;
1078		1335
1079	$cf::PLAYER{$login}	1336	$cf::PLAYER{$login}
1080	or cf::sync_job { !aio_stat $login }	1337	or cf::sync_job { !aio_stat path $login }
1081	}	1338	}
1082		1339
1083	sub find($) {	1340	sub find($) {
1084	return $cf::PLAYER{$_[0]} || do {	1341	return $cf::PLAYER{$_[0]} || do {
1085	my $login = $_[0];	1342	my $login = $_[0];
1086		1343
1087	my $guard = cf::lock_acquire "user_find:$login";	1344	my $guard = cf::lock_acquire "user_find:$login";
1088		1345
1089	$cf::PLAYER{$_[0]} || do {	1346	$cf::PLAYER{$_[0]} || do {
1090	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
1091	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;
1092	$cf::PLAYER{$login} = $pl	1362	$cf::PLAYER{$login} = $pl
1093	}	1363	}
1094	}	1364	}
1095	}	1365	}
1096		1366
…		…
1106		1376
1107	aio_mkdir playerdir $pl, 0770;	1377	aio_mkdir playerdir $pl, 0770;
1108	$pl->{last_save} = $cf::RUNTIME;	1378	$pl->{last_save} = $cf::RUNTIME;
1109		1379
1110	$pl->save_pl ($path);	1380	$pl->save_pl ($path);
1111	Coro::cede;	1381	cf::cede_to_tick;
1112	}	1382	}
1113		1383
1114	sub new($) {	1384	sub new($) {
1115	my ($login) = @_;	1385	my ($login) = @_;
1116		1386
…		…
1122	$cf::PLAYER{$login} = $self;	1392	$cf::PLAYER{$login} = $self;
1123		1393
1124	$self	1394	$self
1125	}	1395	}
1126		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
1127	=item $pl->quit_character	1407	=item $pl->quit_character
1128		1408
1129	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
1130	be destroyed. May block for a long time.	1410	be destroyed. May block for a long time.
1131		1411
1132	=cut	1412	=cut
1133		1413
1134	sub quit_character {	1414	sub quit_character {
1135	my ($pl) = @_;	1415	my ($pl) = @_;
		1416
		1417	my $name = $pl->ob->name;
1136		1418
1137	$pl->{deny_save} = 1;	1419	$pl->{deny_save} = 1;
1138	$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
1139		1421
1140	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1422	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1145	my $path = playerdir $pl;	1427	my $path = playerdir $pl;
1146	my $temp = "$path~$cf::RUNTIME~deleting~";	1428	my $temp = "$path~$cf::RUNTIME~deleting~";
1147	aio_rename $path, $temp;	1429	aio_rename $path, $temp;
1148	delete $cf::PLAYER{$pl->ob->name};	1430	delete $cf::PLAYER{$pl->ob->name};
1149	$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
1150	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;
1151	}	1453	}
1152		1454
1153	=item cf::player::list_logins	1455	=item cf::player::list_logins
1154		1456
1155	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
1156	while and may block, so not sync_job-capable, ever.	1458	while and may block, so not sync_job-capable, ever.
1157		1459
1158	=cut	1460	=cut
1159		1461
1160	sub list_logins {	1462	sub list_logins {
1161	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1463	my $dirs = aio_readdir $PLAYERDIR
1162	or return [];	1464	or return [];
1163		1465
1164	my @logins;	1466	my @logins;
1165		1467
1166	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") {
1167	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1473	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1168	aio_read $fh, 0, 512, my $buf, 0 or next;	1474	aio_read $fh, 0, 512, my $buf, 0 or next;
1169	$buf !~ /^password -------------$/m or next; # official not-valid tag	1475	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1476	}
1170		1477
1171	utf8::decode $login;	1478	utf8::decode $login;
1172	push @logins, $login;	1479	push @logins, $login;
1173	}	1480	}
1174		1481
1175	\@logins	1482	\@logins
1176	}	1483	}
1177		1484
1178	=item $player->maps	1485	=item $player->maps
1179		1486
1180	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
1181	player. May block.	1488	player. May block.
1182		1489
1183	=cut	1490	=cut
1184		1491
1185	sub maps($) {	1492	sub maps($) {
1186	my ($pl) = @_;	1493	my ($pl) = @_;
		1494
		1495	$pl = ref $pl ? $pl->ob->name : $pl;
1187		1496
1188	my $files = aio_readdir playerdir $pl	1497	my $files = aio_readdir playerdir $pl
1189	or return;	1498	or return;
1190		1499
1191	my @paths;	1500	my @paths;
…		…
1193	for (@$files) {	1502	for (@$files) {
1194	utf8::decode $_;	1503	utf8::decode $_;
1195	next if /\.(?:pl|pst)$/;	1504	next if /\.(?:pl|pst)$/;
1196	next unless /^$PATH_SEP/o;	1505	next unless /^$PATH_SEP/o;
1197		1506
1198	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1507	push @paths, cf::map::normalise "~$pl/$_";
1199	}	1508	}
1200		1509
1201	\@paths	1510	\@paths
1202	}	1511	}
1203		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
1204	=item $player->ext_reply ($msgid, $msgtype, %msg)	1564	=item $player->ext_reply ($msgid, @msg)
1205		1565
1206	Sends an ext reply to the player.	1566	Sends an ext reply to the player.
1207		1567
1208	=cut	1568	=cut
1209		1569
1210	sub ext_reply($$$%) {	1570	sub ext_reply($$@) {
1211	my ($self, $id, %msg) = @_;	1571	my ($self, $id, @msg) = @_;
1212		1572
1213	$msg{msgid} = $id;	1573	$self->ns->ext_reply ($id, @msg)
1214
1215	$self->send ("ext " . cf::to_json \%msg);
1216	}	1574	}
1217		1575
1218	package cf;	1576	=item $player->ext_msg ($type, @msg)
		1577
		1578	Sends an ext event to the client.
		1579
		1580	=cut
		1581
		1582	sub ext_msg($$@) {
		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	}
1219		1616
1220	=back	1617	=back
1221
1222		1618
1223	=head3 cf::map	1619	=head3 cf::map
1224		1620
1225	=over 4	1621	=over 4
1226		1622
…		…
1229	package cf::map;	1625	package cf::map;
1230		1626
1231	use Fcntl;	1627	use Fcntl;
1232	use Coro::AIO;	1628	use Coro::AIO;
1233		1629
		1630	use overload
		1631	'""' => \&as_string,
		1632	fallback => 1;
		1633
1234	our $MAX_RESET = 3600;	1634	our $MAX_RESET = 3600;
1235	our $DEFAULT_RESET = 3000;	1635	our $DEFAULT_RESET = 3000;
1236		1636
1237	sub generate_random_map {	1637	sub generate_random_map {
1238	my ($path, $rmp) = @_;	1638	my ($self, $rmp) = @_;
1239
1240	# mit "rum" bekleckern, nicht	1639	# mit "rum" bekleckern, nicht
1241	cf::map::_create_random_map	1640	$self->_create_random_map (
1242	$path,
1243	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1641	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1244	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1642	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1245	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1643	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1246	$rmp->{exit_on_final_map},	1644	$rmp->{exit_on_final_map},
1247	$rmp->{xsize}, $rmp->{ysize},	1645	$rmp->{xsize}, $rmp->{ysize},
1248	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1646	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1249	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1647	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1250	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1648	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1251	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1649	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1252	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1650	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1253	(cf::region::find $rmp->{region})	1651	(cf::region::find $rmp->{region}), $rmp->{custom}
		1652	)
		1653	}
		1654
		1655	=item cf::map->register ($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"
1254	}	1780	}
1255		1781
1256	# and all this just because we cannot iterate over	1782	# and all this just because we cannot iterate over
1257	# all maps in C++...	1783	# all maps in C++...
1258	sub change_all_map_light {	1784	sub change_all_map_light {
…		…
1260		1786
1261	$_->change_map_light ($change)	1787	$_->change_map_light ($change)
1262	for grep $_->outdoor, values %cf::MAP;	1788	for grep $_->outdoor, values %cf::MAP;
1263	}	1789	}
1264		1790
		1791	sub decay_objects {
		1792	my ($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
1265	sub try_load_header($) {	1807	sub load_header_from($) {
1266	my ($path) = @_;	1808	my ($self, $path) = @_;
1267		1809
1268	utf8::encode $path;	1810	utf8::encode $path;
1269	aio_open $path, O_RDONLY, 0	1811	my $f = new_from_file cf::object::thawer $path
1270	or return;	1812	or return;
1271		1813
1272	my $map = cf::map::new	1814	$self->_load_header ($f)
1273	or return;	1815	or return;
1274		1816
1275	# for better error messages only, will be overwritten	1817	local $MAP_LOADING{$self->{path}} = $self;
1276	$map->path ($path);	1818	$f->resolve_delayed_derefs;
1277		1819
1278	$map->load_header ($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
1279	or return;	1863	or return;
		1864	$self->prepare_orig;
		1865	}
1280		1866
1281	$map->{load_path} = $path;	1867	$self->{deny_reset} = 1
		1868	if $self->no_reset;
1282		1869
1283	$map	1870	$self->default_region (cf::region::find_by_path $self->{path})
		1871	unless $self->default_region;
		1872
		1873	1
1284	}	1874	}
1285		1875
1286	sub find;	1876	sub find;
1287	sub find {	1877	sub find {
1288	my ($path, $origin) = @_;	1878	my ($path, $origin) = @_;
1289		1879
1290	#warn "find<$path,$origin>\n";#d#
1291
1292	$path = new cf::path $path, $origin && $origin->path;	1880	$path = normalise $path, $origin && $origin->path;
1293	my $key = $path->as_string;
1294		1881
		1882	cf::lock_wait "map_data:$path";#d#remove
1295	cf::lock_wait "map_find:$key";	1883	cf::lock_wait "map_find:$path";
1296		1884
1297	$cf::MAP{$key} || do {	1885	$cf::MAP{$path} || do {
1298	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
1299		1888
1300	# do it the slow way	1889	my $map = new_from_path cf::map $path
1301	my $map = try_load_header $path->save_path;
1302
1303	Coro::cede;
1304
1305	if ($map) {
1306	$map->last_access ((delete $map->{last_access})
1307	|| $cf::RUNTIME); #d#
1308	# safety
1309	$map->{instantiate_time} = $cf::RUNTIME
1310	if $map->{instantiate_time} > $cf::RUNTIME;
1311	} else {
1312	if (my $rmp = $path->random_map_params) {
1313	$map = generate_random_map $key, $rmp;
1314	} else {
1315	$map = try_load_header $path->load_path;
1316	}
1317
1318	$map or return;	1890	or return;
1319		1891
1320	$map->{load_original} = 1;
1321	$map->{instantiate_time} = $cf::RUNTIME;
1322	$map->last_access ($cf::RUNTIME);
1323	$map->instantiate;
1324
1325	# per-player maps become, after loading, normal maps
1326	$map->per_player (0) if $path->{user_rel};
1327	}
1328
1329	$map->path ($key);
1330	$map->{path} = $path;
1331	$map->{last_save} = $cf::RUNTIME;	1892	$map->{last_save} = $cf::RUNTIME;
1332		1893
1333	Coro::cede;	1894	$map->load_header
		1895	or return;
1334		1896
1335	if ($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;
1336	$map->reset;	1902	$map->reset;
1337	undef $guard;
1338	$map = find $path	1903	return find $path;
1339	or return;
1340	}	1904	}
1341		1905
1342	$cf::MAP{$key} = $map	1906	$cf::MAP{$path} = $map
1343	}	1907	}
1344	}	1908	}
		1909
		1910	sub pre_load { }
		1911	sub post_load { }
1345		1912
1346	sub load {	1913	sub load {
1347	my ($self) = @_;	1914	my ($self) = @_;
1348		1915
		1916	local $self->{deny_reset} = 1; # loading can take a long time
		1917
1349	my $path = $self->{path};	1918	my $path = $self->{path};
		1919
		1920	{
1350	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1921	my $guard = cf::lock_acquire "map_data:$path";
1351		1922
		1923	return unless $self->valid;
1352	return if $self->in_memory != cf::MAP_SWAPPED;	1924	return unless $self->in_memory == cf::MAP_SWAPPED;
1353		1925
1354	$self->in_memory (cf::MAP_LOADING);	1926	$self->in_memory (cf::MAP_LOADING);
1355		1927
1356	$self->alloc;	1928	$self->alloc;
1357	$self->load_objects ($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)
1358	or return;	1936	or return;
1359		1937
1360	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1938	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1361	if delete $self->{load_original};	1939	if delete $self->{load_original};
1362		1940
1363	if (my $uniq = $path->uniq_path) {	1941	if (my $uniq = $self->uniq_path) {
1364	utf8::encode $uniq;	1942	utf8::encode $uniq;
1365	if (aio_open $uniq, O_RDONLY, 0) {	1943	unless (aio_stat $uniq) {
		1944	if (my $f = new_from_file cf::object::thawer $uniq) {
1366	$self->clear_unique_items;	1945	$self->clear_unique_items;
1367	$self->load_objects ($uniq, 0);	1946	$self->_load_objects ($f);
		1947	$f->resolve_delayed_derefs;
		1948	}
1368	}	1949	}
1369	}	1950	}
1370		1951
1371	Coro::cede;	1952	$f->resolve_delayed_derefs;
1372		1953
		1954	cf::cede_to_tick;
1373	# now do the right thing for maps	1955	# now do the right thing for maps
1374	$self->link_multipart_objects;	1956	$self->link_multipart_objects;
1375
1376	if ($self->{path}->is_style_map) {
1377	$self->{deny_save} = 1;
1378	$self->{deny_reset} = 1;
1379	} else {
1380	$self->fix_auto_apply;
1381	$self->decay_objects;
1382	$self->update_buttons;
1383	$self->set_darkness_map;
1384	$self->difficulty ($self->estimate_difficulty)	1957	$self->difficulty ($self->estimate_difficulty)
1385	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;
1386	$self->activate;	1968	$self->activate;
1387	}	1969	}
1388		1970
1389	Coro::cede;	1971	$self->{last_save} = $cf::RUNTIME;
		1972	$self->last_access ($cf::RUNTIME);
1390		1973
1391	$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	$self
1392	}	1990	}
1393		1991
1394	# find and load all maps in the 3x3 area around a map	1992	# find and load all maps in the 3x3 area around a map
1395	sub load_diag {	1993	sub load_neighbours {
1396	my ($map) = @_;	1994	my ($map) = @_;
1397		1995
1398	my @diag; # diagonal neighbours	1996	my @neigh; # diagonal neighbours
1399		1997
1400	for (0 .. 3) {	1998	for (0 .. 3) {
1401	my $neigh = $map->tile_path ($_)	1999	my $neigh = $map->tile_path ($_)
1402	or next;	2000	or next;
1403	$neigh = find $neigh, $map	2001	$neigh = find $neigh, $map
1404	or next;	2002	or next;
1405	$neigh->load;	2003	$neigh->load;
1406		2004
		2005	push @neigh,
1407	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2006	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1408	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2007	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1409	}	2008	}
1410		2009
1411	for (@diag) {	2010	for (grep defined $_->[0], @neigh) {
		2011	my ($path, $origin) = @$_;
1412	my $neigh = find @$_	2012	my $neigh = find $path, $origin
1413	or next;	2013	or next;
1414	$neigh->load;	2014	$neigh->load;
1415	}	2015	}
1416	}	2016	}
1417		2017
…		…
1422	}	2022	}
1423		2023
1424	sub do_load_sync {	2024	sub do_load_sync {
1425	my ($map) = @_;	2025	my ($map) = @_;
1426		2026
		2027	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2028	if $Coro::current == $Coro::main;
		2029
1427	cf::sync_job { $map->load };	2030	cf::sync_job { $map->load };
1428	}	2031	}
1429		2032
1430	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
1431	our $MAP_PREFETCHER = Coro::async {	2047	$MAP_PREFETCHER ||= cf::async {
1432	while () {
1433	while (%MAP_PREFETCH) {	2048	while (%MAP_PREFETCH) {
1434	my $key = each %MAP_PREFETCH	2049	while (my ($k, $v) = each %MAP_PREFETCH) {
1435	or next;	2050	if (my $map = find $k) {
		2051	$map->load if $v;
		2052	}
		2053
1436	my $path = delete $MAP_PREFETCH{$key};	2054	delete $MAP_PREFETCH{$k};
1437
1438	my $map = find $path
1439	or next;
1440	$map->load;
1441	}	2055	}
1442	Coro::schedule;	2056	}
		2057	undef $MAP_PREFETCHER;
1443	}	2058	};
1444	};
1445
1446	sub find_async {
1447	my ($path, $origin) = @_;
1448
1449	$path = new cf::path $path, $origin && $origin->path;
1450	my $key = $path->as_string;
1451
1452	if (my $map = $cf::MAP{$key}) {
1453	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1454	}
1455
1456	$MAP_PREFETCH{$key} = $path;
1457	$MAP_PREFETCHER->ready;	2059	$MAP_PREFETCHER->prio (6);
1458		2060
1459	()	2061	()
1460	}	2062	}
1461		2063
1462	sub save {	2064	sub save {
1463	my ($self) = @_;	2065	my ($self) = @_;
1464		2066
1465	my $lock = cf::lock_acquire "map_data:" . $self->path;	2067	my $lock = cf::lock_acquire "map_data:$self->{path}";
1466		2068
1467	$self->{last_save} = $cf::RUNTIME;	2069	$self->{last_save} = $cf::RUNTIME;
1468		2070
1469	return unless $self->dirty;	2071	return unless $self->dirty;
1470		2072
1471	my $save = $self->{path}->save_path; utf8::encode $save;	2073	my $save = $self->save_path; utf8::encode $save;
1472	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2074	my $uniq = $self->uniq_path; utf8::encode $uniq;
1473		2075
1474	$self->{load_path} = $save;	2076	$self->{load_path} = $save;
1475		2077
1476	return if $self->{deny_save};	2078	return if $self->{deny_save};
1477		2079
…		…
1480	cf::async {	2082	cf::async {
1481	$_->contr->save for $self->players;	2083	$_->contr->save for $self->players;
1482	};	2084	};
1483		2085
1484	if ($uniq) {	2086	if ($uniq) {
1485	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2087	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1486	$self->save_objects ($uniq, cf::IO_UNIQUES);	2088	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1487	} else {	2089	} else {
1488	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2090	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1489	}	2091	}
1490	}	2092	}
1491		2093
1492	sub swap_out {	2094	sub swap_out {
1493	my ($self) = @_;	2095	my ($self) = @_;
1494		2096
1495	# save first because save cedes	2097	# save first because save cedes
1496	$self->save;	2098	$self->save;
1497		2099
1498	my $lock = cf::lock_acquire "map_data:" . $self->path;	2100	my $lock = cf::lock_acquire "map_data:$self->{path}";
1499		2101
1500	return if $self->players;	2102	return if $self->players;
1501	return if $self->in_memory != cf::MAP_IN_MEMORY;	2103	return if $self->in_memory != cf::MAP_IN_MEMORY;
1502	return if $self->{deny_save};	2104	return if $self->{deny_save};
1503		2105
		2106	$self->in_memory (cf::MAP_SWAPPED);
		2107
		2108	$self->deactivate;
		2109	$_->clear_links_to ($self) for values %cf::MAP;
1504	$self->clear;	2110	$self->clear;
1505	$self->in_memory (cf::MAP_SWAPPED);
1506	}	2111	}
1507		2112
1508	sub reset_at {	2113	sub reset_at {
1509	my ($self) = @_;	2114	my ($self) = @_;
1510		2115
1511	# TODO: safety, remove and allow resettable per-player maps	2116	# TODO: safety, remove and allow resettable per-player maps
1512	return 1e99 if $self->{path}{user_rel};
1513	return 1e99 if $self->{deny_reset};	2117	return 1e99 if $self->{deny_reset};
1514		2118
1515	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2119	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1516	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2120	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1517		2121
…		…
1522	my ($self) = @_;	2126	my ($self) = @_;
1523		2127
1524	$self->reset_at <= $cf::RUNTIME	2128	$self->reset_at <= $cf::RUNTIME
1525	}	2129	}
1526		2130
1527	sub unlink_save {
1528	my ($self) = @_;
1529
1530	utf8::encode (my $save = $self->{path}->save_path);
1531	aioreq_pri 3; IO::AIO::aio_unlink $save;
1532	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1533	}
1534
1535	sub rename {
1536	my ($self, $new_path) = @_;
1537
1538	$self->unlink_save;
1539
1540	delete $cf::MAP{$self->path};
1541	$self->{path} = new cf::path $new_path;
1542	$self->path ($self->{path}->as_string);
1543	$cf::MAP{$self->path} = $self;
1544
1545	$self->save;
1546	}
1547
1548	sub reset {	2131	sub reset {
1549	my ($self) = @_;	2132	my ($self) = @_;
1550		2133
1551	my $lock = cf::lock_acquire "map_data:" . $self->path;	2134	my $lock = cf::lock_acquire "map_data:$self->{path}";
1552		2135
1553	return if $self->players;	2136	return if $self->players;
1554	return if $self->{path}{user_rel};#d#
1555		2137
1556	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	}
1557		2149
1558	delete $cf::MAP{$self->path};	2150	delete $cf::MAP{$self->path};
1559		2151
		2152	$self->deactivate;
1560	$_->clear_links_to ($self) for values %cf::MAP;	2153	$_->clear_links_to ($self) for values %cf::MAP;
		2154	$self->clear;
1561		2155
1562	$self->unlink_save;	2156	$self->unlink_save;
1563	$self->destroy;	2157	$self->destroy;
1564	}	2158	}
1565		2159
1566	my $nuke_counter = "aaaa";	2160	my $nuke_counter = "aaaa";
1567		2161
1568	sub nuke {	2162	sub nuke {
1569	my ($self) = @_;	2163	my ($self) = @_;
1570		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};
1571	$self->{deny_save} = 1;	2174	$self->{deny_save} = 1;
1572	$self->reset_timeout (1);	2175	$self->reset_timeout (1);
1573	$self->rename ("{nuke}/" . ($nuke_counter++));	2176	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2177
		2178	$cf::MAP{$self->path} = $self;
		2179	}
		2180
1574	$self->reset; # polite request, might not happen	2181	$self->reset; # polite request, might not happen
1575	}	2182	}
1576		2183
1577	sub customise_for {	2184	=item $maps = cf::map::tmp_maps
1578	my ($map, $ob) = @_;
1579		2185
1580	if ($map->per_player) {	2186	Returns an arrayref with all map paths of currently instantiated and saved
1581	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2187	maps. May block.
		2188
		2189	=cut
		2190
		2191	sub tmp_maps() {
1582	}	2192	[
		2193	map {
		2194	utf8::decode $_;
		2195	/\.map$/
		2196	? normalise $_
		2197	: ()
		2198	} @{ aio_readdir $TMPDIR or [] }
		2199	]
		2200	}
1583		2201
1584	$map	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	]
1585	}	2218	}
1586		2219
1587	=item cf::map::unique_maps	2220	=item cf::map::unique_maps
1588		2221
1589	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
1590	instantiated unique items. May block.	2223	instantiated unique items. May block.
1591		2224
1592	=cut	2225	=cut
1593		2226
1594	sub unique_maps() {	2227	sub unique_maps() {
1595	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2228	[
1596	or return;	2229	map {
1597
1598	my @paths;
1599
1600	for (@$files) {
1601	utf8::decode $_;	2230	utf8::decode $_;
1602	next if /\.pst$/;	2231	/\.map$/
1603	next unless /^$PATH_SEP/o;	2232	? normalise $_
1604		2233	: ()
1605	push @paths, new cf::path $_;	2234	} @{ aio_readdir $UNIQUEDIR or [] }
1606	}	2235	]
1607
1608	\@paths
1609	}	2236	}
1610		2237
1611	package cf;	2238	package cf;
1612		2239
1613	=back	2240	=back
…		…
1631	map { $_, inv_recursive_ $_->inv } @_	2258	map { $_, inv_recursive_ $_->inv } @_
1632	}	2259	}
1633		2260
1634	sub inv_recursive {	2261	sub inv_recursive {
1635	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	}
1636	}	2294	}
1637		2295
1638	package cf;	2296	package cf;
1639		2297
1640	=back	2298	=back
…		…
1659		2317
1660	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2318	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1661		2319
1662	if ($self->{record_replies}) {	2320	if ($self->{record_replies}) {
1663	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2321	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2322
1664	} 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 {
1665	$msg = $npc->name . " says: $msg" if $npc;	2331	$msg = $npc->name . " says: $msg" if $npc;
1666	$self->message ($msg, $flags);	2332	$self->message ($msg, $flags);
		2333	}
1667	}	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 (@_);
1668	}	2345	}
1669		2346
1670	=item $player_object->may ("access")	2347	=item $player_object->may ("access")
1671		2348
1672	Returns wether the given player is authorized to access resource "access"	2349	Returns wether the given player is authorized to access resource "access"
…		…
1685		2362
1686	=item $player_object->enter_link	2363	=item $player_object->enter_link
1687		2364
1688	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}>).
1689		2366
1690	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
1691	I<MUST> call C<leave_link> as soon as possible, though.	2368	I<MUST> call C<leave_link> as soon as possible, though.
1692		2369
		2370	Will never block.
		2371
1693	=item $player_object->leave_link ($map, $x, $y)	2372	=item $player_object->leave_link ($map, $x, $y)
1694		2373
1695	Moves the player out of the specila link map onto the given map. If the	2374	Moves the player out of the special C<{link}> map onto the specified
1696	map is not valid (or omitted), the player will be moved back to the	2375	map. If the map is not valid (or omitted), the player will be moved back
1697	location he/she was before the call to C<enter_link>, or, if that fails,	2376	to the location he/she was before the call to C<enter_link>, or, if that
1698	to the emergency map position.	2377	fails, to the emergency map position.
1699		2378
1700	Might block.	2379	Might block.
1701		2380
1702	=cut	2381	=cut
		2382
		2383	sub link_map {
		2384	unless ($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	$LINK_MAP
		2391	}
1703		2392
1704	sub cf::object::player::enter_link {	2393	sub cf::object::player::enter_link {
1705	my ($self) = @_;	2394	my ($self) = @_;
1706		2395
1707	$self->deactivate_recursive;	2396	$self->deactivate_recursive;
1708		2397
1709	return if $self->map == $LINK_MAP;	2398	return if UNIVERSAL::isa $self->map, "ext::map_link";
1710		2399
1711	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2400	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1712	if $self->map;	2401	if $self->map && $self->map->{path} ne "{link}";
1713		2402
1714	$self->enter_map ($LINK_MAP, 20, 20);	2403	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1715	}	2404	}
1716		2405
1717	sub cf::object::player::leave_link {	2406	sub cf::object::player::leave_link {
1718	my ($self, $map, $x, $y) = @_;	2407	my ($self, $map, $x, $y) = @_;
		2408
		2409	return unless $self->contr->active;
1719		2410
1720	my $link_pos = delete $self->{_link_pos};	2411	my $link_pos = delete $self->{_link_pos};
1721		2412
1722	unless ($map) {	2413	unless ($map) {
1723	# restore original map position	2414	# restore original map position
…		…
1737	# use -1 or undef as default coordinates, not 0, 0	2428	# use -1 or undef as default coordinates, not 0, 0
1738	($x, $y) = ($map->enter_x, $map->enter_y)	2429	($x, $y) = ($map->enter_x, $map->enter_y)
1739	if $x <=0 && $y <= 0;	2430	if $x <=0 && $y <= 0;
1740		2431
1741	$map->load;	2432	$map->load;
1742	$map->load_diag;	2433	$map->load_neighbours;
1743		2434
1744	return unless $self->contr->active;	2435	return unless $self->contr->active;
1745	$self->activate_recursive;	2436	$self->activate_recursive;
		2437
		2438	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1746	$self->enter_map ($map, $x, $y);	2439	$self->enter_map ($map, $x, $y);
1747	}	2440	}
1748		2441
1749	cf::player->attach (	2442	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1750	on_logout => sub {
1751	my ($pl) = @_;
1752		2443
1753	# abort map switching before logout	2444	Moves the player to the given map-path and coordinates by first freezing
1754	if ($pl->ob->{_link_pos}) {	2445	her, loading and preparing them map, calling the provided $check callback
1755	cf::sync_job {	2446	that has to return the map if sucecssful, and then unfreezes the player on
1756	$pl->ob->leave_link	2447	the new (success) or old (failed) map position. In either case, $done will
1757	};	2448	be called at the end of this process.
1758	}
1759	},
1760	on_login => sub {
1761	my ($pl) = @_;
1762		2449
1763	# try to abort aborted map switching on player login :)
1764	# should happen only on crashes
1765	if ($pl->ob->{_link_pos}) {
1766	$pl->ob->enter_link;
1767	(async {
1768	# we need this sleep as the login has a concurrent enter_exit running
1769	# and this sleep increases chances of the player not ending up in scorn
1770	$pl->ob->reply (undef,
1771	"There was an internal problem at your last logout, "
1772	. "the server will try to bring you to your intended destination in a second.",
1773	cf::NDI_RED);
1774	Coro::Timer::sleep 1;
1775	$pl->ob->leave_link;
1776	})->prio (2);
1777	}
1778	},
1779	);
1780
1781	=item $player_object->goto ($path, $x, $y)
1782
1783	=cut	2450	=cut
		2451
		2452	our $GOTOGEN;
1784		2453
1785	sub cf::object::player::goto {	2454	sub cf::object::player::goto {
1786	my ($self, $path, $x, $y) = @_;	2455	my ($self, $path, $x, $y, $check, $done) = @_;
1787		2456
1788	$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;
1789		2459
1790	$self->enter_link;	2460	$self->enter_link;
1791		2461
1792	(async {	2462	(async {
		2463	# *tag paths override both path and x|y
		2464	if ($path =~ /^\*(.*)$/) {
		2465	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2466	my $ob = $obs[rand @obs];
		2467	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2468	}
		2469	}
		2470
		2471	my $map = eval {
1793	my $map = cf::map::find $path->as_string;	2472	my $map = cf::map::find $path;
		2473
		2474	if ($map) {
1794	$map = $map->customise_for ($self) if $map;	2475	$map = $map->customise_for ($self);
1795		2476	$map = $check->($map) if $check && $map;
1796	# warn "entering ", $map->path, " at ($x, $y)\n"	2477	} else {
1797	# if $map;
1798
1799	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2478	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2479	}
1800		2480
		2481	$map
		2482	};
		2483
		2484	if ($@) {
		2485	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2486	LOG llevError | logBacktrace, Carp::longmess $@;
		2487	}
		2488
		2489	if ($gen == $self->{_goto_generation}) {
		2490	delete $self->{_goto_generation};
1801	$self->leave_link ($map, $x, $y);	2491	$self->leave_link ($map, $x, $y);
		2492	}
		2493
		2494	$done->() if $done;
1802	})->prio (1);	2495	})->prio (1);
1803	}	2496	}
1804		2497
1805	=item $player_object->enter_exit ($exit_object)	2498	=item $player_object->enter_exit ($exit_object)
1806		2499
…		…
1808		2501
1809	sub parse_random_map_params {	2502	sub parse_random_map_params {
1810	my ($spec) = @_;	2503	my ($spec) = @_;
1811		2504
1812	my $rmp = { # defaults	2505	my $rmp = { # defaults
1813	xsize => 10,	2506	xsize => (cf::rndm 15, 40),
1814	ysize => 10,	2507	ysize => (cf::rndm 15, 40),
		2508	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2509	#layout => string,
1815	};	2510	};
1816		2511
1817	for (split /\n/, $spec) {	2512	for (split /\n/, $spec) {
1818	my ($k, $v) = split /\s+/, $_, 2;	2513	my ($k, $v) = split /\s+/, $_, 2;
1819		2514
…		…
1823	$rmp	2518	$rmp
1824	}	2519	}
1825		2520
1826	sub prepare_random_map {	2521	sub prepare_random_map {
1827	my ($exit) = @_;	2522	my ($exit) = @_;
		2523
		2524	my $guard = cf::lock_acquire "exit_prepare:$exit";
1828		2525
1829	# all this does is basically replace the /! path by	2526	# all this does is basically replace the /! path by
1830	# a new random map path (?random/...) with a seed	2527	# a new random map path (?random/...) with a seed
1831	# that depends on the exit object	2528	# that depends on the exit object
1832		2529
1833	my $rmp = parse_random_map_params $exit->msg;	2530	my $rmp = parse_random_map_params $exit->msg;
1834		2531
1835	if ($exit->map) {	2532	if ($exit->map) {
1836	$rmp->{region} = $exit->map->region_name;	2533	$rmp->{region} = $exit->region->name;
1837	$rmp->{origin_map} = $exit->map->path;	2534	$rmp->{origin_map} = $exit->map->path;
1838	$rmp->{origin_x} = $exit->x;	2535	$rmp->{origin_x} = $exit->x;
1839	$rmp->{origin_y} = $exit->y;	2536	$rmp->{origin_y} = $exit->y;
1840	}	2537	}
1841		2538
1842	$rmp->{random_seed} ||= $exit->random_seed;	2539	$rmp->{random_seed} ||= $exit->random_seed;
1843		2540
1844	my $data = cf::to_json $rmp;	2541	my $data = cf::to_json $rmp;
1845	my $md5 = Digest::MD5::md5_hex $data;	2542	my $md5 = Digest::MD5::md5_hex $data;
		2543	my $meta = "$RANDOMDIR/$md5.meta";
1846		2544
1847	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2545	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1848	aio_write $fh, 0, (length $data), $data, 0;	2546	aio_write $fh, 0, (length $data), $data, 0;
		2547	undef $fh;
		2548	aio_rename "$meta~", $meta;
1849		2549
1850	$exit->slaying ("?random/$md5");	2550	$exit->slaying ("?random/$md5");
1851	$exit->msg (undef);	2551	$exit->msg (undef);
1852	}	2552	}
1853	}	2553	}
…		…
1855	sub cf::object::player::enter_exit {	2555	sub cf::object::player::enter_exit {
1856	my ($self, $exit) = @_;	2556	my ($self, $exit) = @_;
1857		2557
1858	return unless $self->type == cf::PLAYER;	2558	return unless $self->type == cf::PLAYER;
1859		2559
		2560	if ($exit->slaying eq "/!") {
		2561	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2562	# the problem is that $exit might not survive long enough
		2563	# so it needs to be done right now, right here
		2564	cf::sync_job { prepare_random_map $exit };
		2565	}
		2566
		2567	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2568	my $hp = $exit->stats->hp;
		2569	my $sp = $exit->stats->sp;
		2570
1860	$self->enter_link;	2571	$self->enter_link;
		2572
		2573	# if exit is damned, update players death & WoR home-position
		2574	$self->contr->savebed ($slaying, $hp, $sp)
		2575	if $exit->flag (FLAG_DAMNED);
1861		2576
1862	(async {	2577	(async {
1863	$self->deactivate_recursive; # just to be sure	2578	$self->deactivate_recursive; # just to be sure
1864	unless (eval {	2579	unless (eval {
1865	prepare_random_map $exit	2580	$self->goto ($slaying, $hp, $sp);
1866	if $exit->slaying eq "/!";
1867
1868	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1869	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1870		2581
1871	1;	2582	1;
1872	}) {	2583	}) {
1873	$self->message ("Something went wrong deep within the crossfire server. "	2584	$self->message ("Something went wrong deep within the crossfire server. "
1874	. "I'll try to bring you back to the map you were before. "	2585	. "I'll try to bring you back to the map you were before. "
1875	. "Please report this to the dungeon master!",	2586	. "Please report this to the dungeon master!",
1876	cf::NDI_UNIQUE | cf::NDI_RED);	2587	cf::NDI_UNIQUE | cf::NDI_RED);
1877		2588
1878	warn "ERROR in enter_exit: $@";	2589	warn "ERROR in enter_exit: $@";
1879	$self->leave_link;	2590	$self->leave_link;
1880	}	2591	}
1881	})->prio (1);	2592	})->prio (1);
…		…
1894		2605
1895	sub cf::client::send_drawinfo {	2606	sub cf::client::send_drawinfo {
1896	my ($self, $text, $flags) = @_;	2607	my ($self, $text, $flags) = @_;
1897		2608
1898	utf8::encode $text;	2609	utf8::encode $text;
1899	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2610	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1900	}	2611	}
1901		2612
		2613	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2614
		2615	Send a drawinfo or msg packet to the client, formatting the msg for the
		2616	client if neccessary. C<$type> should be a string identifying the type of
		2617	the message, with C<log> being the default. If C<$color> is negative, suppress
		2618	the message unless the client supports the msg packet.
		2619
		2620	=cut
		2621
		2622	our %CHANNEL = (
		2623	"c/identify" => {
		2624	id => "identify",
		2625	title => "Identify",
		2626	reply => undef,
		2627	tooltip => "Items recently identified",
		2628	},
		2629	"c/examine" => {
		2630	id => "examine",
		2631	title => "Examine",
		2632	reply => undef,
		2633	tooltip => "Signs and other items you examined",
		2634	},
		2635	);
		2636
		2637	sub cf::client::send_msg {
		2638	my ($self, $channel, $msg, $color, @extra) = @_;
		2639
		2640	$msg = $self->pl->expand_cfpod ($msg);
		2641
		2642	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2643
		2644	# check predefined channels, for the benefit of C
		2645	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2646
		2647	if (ref $channel) {
		2648	# send meta info to client, if not yet sent
		2649	unless (exists $self->{channel}{$channel->{id}}) {
		2650	$self->{channel}{$channel->{id}} = $channel;
		2651	$self->ext_msg (channel_info => $channel)
		2652	if $self->can_msg;
		2653	}
		2654
		2655	$channel = $channel->{id};
		2656	}
		2657
		2658	return unless @extra || length $msg;
		2659
		2660	if ($self->can_msg) {
		2661	# default colour, mask it out
		2662	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2663	if $color & cf::NDI_DEF;
		2664
		2665	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2666	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2667	} else {
		2668	if ($color >= 0) {
		2669	# replace some tags by gcfclient-compatible ones
		2670	for ($msg) {
		2671	1 while
		2672	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2673	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2674	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2675	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2676	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2677	}
		2678
		2679	$color &= cf::NDI_COLOR_MASK;
		2680
		2681	utf8::encode $msg;
		2682
		2683	if (0 && $msg =~ /\[/) {
		2684	# COMMAND/INFO
		2685	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2686	} else {
		2687	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2688	$self->send_packet ("drawinfo $color $msg")
		2689	}
		2690	}
		2691	}
		2692	}
		2693
		2694	=item $client->ext_msg ($type, @msg)
		2695
		2696	Sends an ext event to the client.
		2697
		2698	=cut
		2699
		2700	sub cf::client::ext_msg($$@) {
		2701	my ($self, $type, @msg) = @_;
		2702
		2703	if ($self->extcmd == 2) {
		2704	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2705	} elsif ($self->extcmd == 1) { # TODO: remove
		2706	push @msg, msgtype => "event_$type";
		2707	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2708	}
		2709	}
		2710
		2711	=item $client->ext_reply ($msgid, @msg)
		2712
		2713	Sends an ext reply to the client.
		2714
		2715	=cut
		2716
		2717	sub cf::client::ext_reply($$@) {
		2718	my ($self, $id, @msg) = @_;
		2719
		2720	if ($self->extcmd == 2) {
		2721	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2722	} elsif ($self->extcmd == 1) {
		2723	#TODO: version 1, remove
		2724	unshift @msg, msgtype => "reply", msgid => $id;
		2725	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2726	}
		2727	}
1902		2728
1903	=item $success = $client->query ($flags, "text", \&cb)	2729	=item $success = $client->query ($flags, "text", \&cb)
1904		2730
1905	Queues a query to the client, calling the given callback with	2731	Queues a query to the client, calling the given callback with
1906	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2732	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1907	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2733	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1908		2734
1909	Queries can fail, so check the return code. Or don't, as queries will become	2735	Queries can fail, so check the return code. Or don't, as queries will
1910	reliable at some point in the future.	2736	become reliable at some point in the future.
1911		2737
1912	=cut	2738	=cut
1913		2739
1914	sub cf::client::query {	2740	sub cf::client::query {
1915	my ($self, $flags, $text, $cb) = @_;	2741	my ($self, $flags, $text, $cb) = @_;
…		…
1923	utf8::encode $text;	2749	utf8::encode $text;
1924	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2750	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1925		2751
1926	$self->send_packet ($self->{query_queue}[0][0])	2752	$self->send_packet ($self->{query_queue}[0][0])
1927	if @{ $self->{query_queue} } == 1;	2753	if @{ $self->{query_queue} } == 1;
		2754
		2755	1
1928	}	2756	}
1929		2757
1930	cf::client->attach (	2758	cf::client->attach (
		2759	on_connect => sub {
		2760	my ($ns) = @_;
		2761
		2762	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2763	},
1931	on_reply => sub {	2764	on_reply => sub {
1932	my ($ns, $msg) = @_;	2765	my ($ns, $msg) = @_;
1933		2766
1934	# this weird shuffling is so that direct followup queries	2767	# this weird shuffling is so that direct followup queries
1935	# get handled first	2768	# get handled first
1936	my $queue = delete $ns->{query_queue}	2769	my $queue = delete $ns->{query_queue}
1937	or return; # be conservative, not sure how that can happen, but we saw a crash here	2770	or return; # be conservative, not sure how that can happen, but we saw a crash here
1938		2771
1939	(shift @$queue)->[1]->($msg);	2772	(shift @$queue)->[1]->($msg);
		2773	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1940		2774
1941	push @{ $ns->{query_queue} }, @$queue;	2775	push @{ $ns->{query_queue} }, @$queue;
1942		2776
1943	if (@{ $ns->{query_queue} } == @$queue) {	2777	if (@{ $ns->{query_queue} } == @$queue) {
1944	if (@$queue) {	2778	if (@$queue) {
…		…
1946	} else {	2780	} else {
1947	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2781	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1948	}	2782	}
1949	}	2783	}
1950	},	2784	},
		2785	on_exticmd => sub {
		2786	my ($ns, $buf) = @_;
		2787
		2788	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2789
		2790	if (ref $msg) {
		2791	my ($type, $reply, @payload) =
		2792	"ARRAY" eq ref $msg
		2793	? @$msg
		2794	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2795
		2796	my @reply;
		2797
		2798	if (my $cb = $EXTICMD{$type}) {
		2799	@reply = $cb->($ns, @payload);
		2800	}
		2801
		2802	$ns->ext_reply ($reply, @reply)
		2803	if $reply;
		2804
		2805	} else {
		2806	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2807	}
		2808
		2809	cf::override;
		2810	},
1951	);	2811	);
1952		2812
1953	=item $client->async (\&cb)	2813	=item $client->async (\&cb)
1954		2814
1955	Create a new coroutine, running the specified callback. The coroutine will	2815	Create a new coroutine, running the specified callback. The coroutine will
…		…
1996	our $safe = new Safe "safe";	2856	our $safe = new Safe "safe";
1997	our $safe_hole = new Safe::Hole;	2857	our $safe_hole = new Safe::Hole;
1998		2858
1999	$SIG{FPE} = 'IGNORE';	2859	$SIG{FPE} = 'IGNORE';
2000		2860
2001	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2861	$safe->permit_only (Opcode::opset qw(
		2862	:base_core :base_mem :base_orig :base_math
		2863	grepstart grepwhile mapstart mapwhile
		2864	sort time
		2865	));
2002		2866
2003	# here we export the classes and methods available to script code	2867	# here we export the classes and methods available to script code
2004		2868
2005	=pod	2869	=pod
2006		2870
2007	The following fucntions and emthods are available within a safe environment:	2871	The following functions and methods are available within a safe environment:
2008		2872
2009	cf::object contr pay_amount pay_player map	2873	cf::object
		2874	contr pay_amount pay_player map x y force_find force_add
		2875	insert remove name archname title slaying race decrease_ob_nr
		2876
2010	cf::object::player player	2877	cf::object::player
2011	cf::player peaceful	2878	player
2012	cf::map trigger	2879
		2880	cf::player
		2881	peaceful
		2882
		2883	cf::map
		2884	trigger
2013		2885
2014	=cut	2886	=cut
2015		2887
2016	for (	2888	for (
2017	["cf::object" => qw(contr pay_amount pay_player map)],	2889	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2890	insert remove inv name archname title slaying race
		2891	decrease_ob_nr)],
2018	["cf::object::player" => qw(player)],	2892	["cf::object::player" => qw(player)],
2019	["cf::player" => qw(peaceful)],	2893	["cf::player" => qw(peaceful)],
2020	["cf::map" => qw(trigger)],	2894	["cf::map" => qw(trigger)],
2021	) {	2895	) {
2022	no strict 'refs';	2896	no strict 'refs';
…		…
2093	=back	2967	=back
2094		2968
2095	=cut	2969	=cut
2096		2970
2097	#############################################################################	2971	#############################################################################
		2972	# the server's init and main functions
2098		2973
2099	=head2 EXTENSION DATABASE SUPPORT	2974	sub load_facedata($) {
		2975	my ($path) = @_;
2100		2976
2101	Crossfire maintains a very simple database for extension use. It can	2977	# HACK to clear player env face cache, we need some signal framework
2102	currently store anything that can be serialised using Storable, which	2978	# for this (global event?)
2103	excludes objects.	2979	%ext::player_env::MUSIC_FACE_CACHE = ();
2104		2980
2105	The parameter C<$family> should best start with the name of the extension	2981	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2106	using it, it should be unique.
2107		2982
2108	=over 4	2983	warn "loading facedata from $path\n";
2109		2984
2110	=item $hashref = cf::db_get $family	2985	my $facedata;
		2986	0 < aio_load $path, $facedata
		2987	or die "$path: $!";
2111		2988
2112	Return a hashref for use by the extension C<$family>, which can be	2989	$facedata = Coro::Storable::thaw $facedata;
2113	modified. After modifications, you have to call C<cf::db_dirty> or
2114	C<cf::db_sync>.
2115		2990
2116	=item $value = cf::db_get $family => $key	2991	$facedata->{version} == 2
		2992	or cf::cleanup "$path: version mismatch, cannot proceed.";
2117		2993
2118	Returns a single value from the database	2994	# patch in the exptable
2119		2995	$facedata->{resource}{"res/exp_table"} = {
2120	=item cf::db_put $family => $hashref	2996	type => FT_RSRC,
2121		2997	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2122	Stores the given family hashref into the database. Updates are delayed, if
2123	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2124
2125	=item cf::db_put $family => $key => $value
2126
2127	Stores the given C<$value> in the family hash. Updates are delayed, if you
2128	want the data to be synced to disk immediately, use C<cf::db_sync>.
2129
2130	=item cf::db_dirty
2131
2132	Marks the database as dirty, to be updated at a later time.
2133
2134	=item cf::db_sync
2135
2136	Immediately write the database to disk I<if it is dirty>.
2137
2138	=cut
2139
2140	our $DB;
2141
2142	{
2143	my $path = cf::localdir . "/database.pst";
2144
2145	sub db_load() {
2146	$DB = stat $path ? Storable::retrieve $path : { };
2147	}
2148
2149	my $pid;
2150
2151	sub db_save() {
2152	waitpid $pid, 0 if $pid;
2153	if (0 == ($pid = fork)) {
2154	$DB->{_meta}{version} = 1;
2155	Storable::nstore $DB, "$path~";
2156	rename "$path~", $path;
2157	cf::_exit 0 if defined $pid;
2158	}
2159	}
2160
2161	my $dirty;
2162
2163	sub db_sync() {
2164	db_save if $dirty;
2165	undef $dirty;
2166	}
2167
2168	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2169	db_sync;
2170	});	2998	};
		2999	cf::cede_to_tick;
2171		3000
2172	sub db_dirty() {
2173	$dirty = 1;
2174	$idle->start;
2175	}	3001	{
		3002	my $faces = $facedata->{faceinfo};
2176		3003
2177	sub db_get($;$) {	3004	while (my ($face, $info) = each %$faces) {
2178	@_ >= 2	3005	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2179	? $DB->{$_[0]}{$_[1]}	3006	cf::face::set_visibility $idx, $info->{visibility};
2180	: ($DB->{$_[0]} ||= { })	3007	cf::face::set_magicmap $idx, $info->{magicmap};
2181	}	3008	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3009	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2182		3010
2183	sub db_put($$;$) {	3011	cf::cede_to_tick;
2184	if (@_ >= 3) {
2185	$DB->{$_[0]}{$_[1]} = $_[2];
2186	} else {
2187	$DB->{$_[0]} = $_[1];
2188	}
2189	db_dirty;
2190	}
2191
2192	cf::global->attach (
2193	prio => 10000,
2194	on_cleanup => sub {
2195	db_sync;
2196	},	3012	}
2197	);
2198	}
2199		3013
2200	#############################################################################	3014	while (my ($face, $info) = each %$faces) {
2201	# the server's main()	3015	next unless $info->{smooth};
		3016	my $idx = cf::face::find $face
		3017	or next;
		3018	if (my $smooth = cf::face::find $info->{smooth}) {
		3019	cf::face::set_smooth $idx, $smooth;
		3020	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3021	} else {
		3022	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3023	}
2202		3024
2203	sub cfg_load {	3025	cf::cede_to_tick;
		3026	}
		3027	}
		3028
		3029	{
		3030	my $anims = $facedata->{animinfo};
		3031
		3032	while (my ($anim, $info) = each %$anims) {
		3033	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3034	cf::cede_to_tick;
		3035	}
		3036
		3037	cf::anim::invalidate_all; # d'oh
		3038	}
		3039
		3040	{
		3041	# TODO: for gcfclient pleasure, we should give resources
		3042	# that gcfclient doesn't grok a >10000 face index.
		3043	my $res = $facedata->{resource};
		3044
		3045	my $soundconf = delete $res->{"res/sound.conf"};
		3046
		3047	while (my ($name, $info) = each %$res) {
		3048	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3049	my $data;
		3050
		3051	if ($info->{type} & 1) {
		3052	# prepend meta info
		3053
		3054	my $meta = $enc->encode ({
		3055	name => $name,
		3056	%{ $info->{meta} || {} },
		3057	});
		3058
		3059	$data = pack "(w/a*)*", $meta, $info->{data};
		3060	} else {
		3061	$data = $info->{data};
		3062	}
		3063
		3064	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3065	cf::face::set_type $idx, $info->{type};
		3066
		3067	cf::cede_to_tick;
		3068	}
		3069
		3070	if ($soundconf) {
		3071	$soundconf = $enc->decode (delete $soundconf->{data});
		3072
		3073	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3074	my $sound = $soundconf->{compat}[$_]
		3075	or next;
		3076
		3077	my $face = cf::face::find "sound/$sound->[1]";
		3078	cf::sound::set $sound->[0] => $face;
		3079	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3080	}
		3081
		3082	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3083	my $face = cf::face::find "sound/$v";
		3084	cf::sound::set $k => $face;
		3085	}
		3086	}
		3087	}
		3088
		3089	1
		3090	}
		3091
		3092	register_exticmd fx_want => sub {
		3093	my ($ns, $want) = @_;
		3094
		3095	while (my ($k, $v) = each %$want) {
		3096	$ns->fx_want ($k, $v);
		3097	}
		3098	};
		3099
		3100	sub reload_regions {
		3101	# HACK to clear player env face cache, we need some signal framework
		3102	# for this (global event?)
		3103	%ext::player_env::MUSIC_FACE_CACHE = ();
		3104
		3105	load_resource_file "$MAPDIR/regions"
		3106	or die "unable to load regions file\n";
		3107
		3108	for (cf::region::list) {
		3109	$_->{match} = qr/$_->{match}/
		3110	if exists $_->{match};
		3111	}
		3112	}
		3113
		3114	sub reload_facedata {
		3115	load_facedata "$DATADIR/facedata"
		3116	or die "unable to load facedata\n";
		3117	}
		3118
		3119	sub reload_archetypes {
		3120	load_resource_file "$DATADIR/archetypes"
		3121	or die "unable to load archetypes\n";
		3122	#d# NEED to laod twice to resolve forward references
		3123	# this really needs to be done in an extra post-pass
		3124	# (which needs to be synchronous, so solve it differently)
		3125	load_resource_file "$DATADIR/archetypes"
		3126	or die "unable to load archetypes\n";
		3127	}
		3128
		3129	sub reload_treasures {
		3130	load_resource_file "$DATADIR/treasures"
		3131	or die "unable to load treasurelists\n";
		3132	}
		3133
		3134	sub reload_resources {
		3135	warn "reloading resource files...\n";
		3136
		3137	reload_regions;
		3138	reload_facedata;
		3139	#reload_archetypes;#d#
		3140	reload_archetypes;
		3141	reload_treasures;
		3142
		3143	warn "finished reloading resource files\n";
		3144	}
		3145
		3146	sub init {
		3147	reload_resources;
		3148	}
		3149
		3150	sub reload_config {
2204	open my $fh, "<:utf8", cf::confdir . "/config"	3151	open my $fh, "<:utf8", "$CONFDIR/config"
2205	or return;	3152	or return;
2206		3153
2207	local $/;	3154	local $/;
2208	*CFG = YAML::Syck::Load <$fh>;	3155	*CFG = YAML::Syck::Load <$fh>;
2209		3156
…		…
2223		3170
2224	sub main {	3171	sub main {
2225	# we must not ever block the main coroutine	3172	# we must not ever block the main coroutine
2226	local $Coro::idle = sub {	3173	local $Coro::idle = sub {
2227	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3174	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3175	(async {
2228	async { Event::one_event };	3176	Event::one_event;
		3177	})->prio (Coro::PRIO_MAX);
2229	};	3178	};
2230		3179
2231	cfg_load;	3180	reload_config;
2232	db_load;	3181	db_init;
2233	load_extensions;	3182	load_extensions;
		3183
		3184	$TICK_WATCHER->start;
2234	Event::loop;	3185	Event::loop;
2235	}	3186	}
2236		3187
2237	#############################################################################	3188	#############################################################################
2238	# initialisation and cleanup	3189	# initialisation and cleanup
2239		3190
2240	# install some emergency cleanup handlers	3191	# install some emergency cleanup handlers
2241	BEGIN {	3192	BEGIN {
2242	for my $signal (qw(INT HUP TERM)) {	3193	for my $signal (qw(INT HUP TERM)) {
2243	Event->signal (	3194	Event->signal (
		3195	reentrant => 0,
2244	data => WF_AUTOCANCEL,	3196	data => WF_AUTOCANCEL,
2245	signal => $signal,	3197	signal => $signal,
		3198	prio => 0,
2246	cb => sub {	3199	cb => sub {
2247	cf::cleanup "SIG$signal";	3200	cf::cleanup "SIG$signal";
2248	},	3201	},
2249	);	3202	);
2250	}	3203	}
2251	}	3204	}
2252		3205
		3206	sub write_runtime {
		3207	my $runtime = "$LOCALDIR/runtime";
		3208
		3209	# first touch the runtime file to show we are still running:
		3210	# the fsync below can take a very very long time.
		3211
		3212	IO::AIO::aio_utime $runtime, undef, undef;
		3213
		3214	my $guard = cf::lock_acquire "write_runtime";
		3215
		3216	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3217	or return;
		3218
		3219	my $value = $cf::RUNTIME + 90 + 10;
		3220	# 10 is the runtime save interval, for a monotonic clock
		3221	# 60 allows for the watchdog to kill the server.
		3222
		3223	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3224	and return;
		3225
		3226	# always fsync - this file is important
		3227	aio_fsync $fh
		3228	and return;
		3229
		3230	# touch it again to show we are up-to-date
		3231	aio_utime $fh, undef, undef;
		3232
		3233	close $fh
		3234	or return;
		3235
		3236	aio_rename "$runtime~", $runtime
		3237	and return;
		3238
		3239	warn "runtime file written.\n";
		3240
		3241	1
		3242	}
		3243
2253	sub emergency_save() {	3244	sub emergency_save() {
2254	my $freeze_guard = cf::freeze_mainloop;	3245	my $freeze_guard = cf::freeze_mainloop;
2255		3246
2256	warn "enter emergency perl save\n";	3247	warn "enter emergency perl save\n";
2257		3248
2258	cf::sync_job {	3249	cf::sync_job {
2259	# use a peculiar iteration method to avoid tripping on perl	3250	# use a peculiar iteration method to avoid tripping on perl
2260	# refcount bugs in for. also avoids problems with players	3251	# refcount bugs in for. also avoids problems with players
2261	# and maps saved/Destroyed asynchronously.	3252	# and maps saved/destroyed asynchronously.
2262	warn "begin emergency player save\n";	3253	warn "begin emergency player save\n";
2263	for my $login (keys %cf::PLAYER) {	3254	for my $login (keys %cf::PLAYER) {
2264	my $pl = $cf::PLAYER{$login} or next;	3255	my $pl = $cf::PLAYER{$login} or next;
2265	$pl->valid or next;	3256	$pl->valid or next;
2266	$pl->save;	3257	$pl->save;
…		…
2272	my $map = $cf::MAP{$path} or next;	3263	my $map = $cf::MAP{$path} or next;
2273	$map->valid or next;	3264	$map->valid or next;
2274	$map->save;	3265	$map->save;
2275	}	3266	}
2276	warn "end emergency map save\n";	3267	warn "end emergency map save\n";
		3268
		3269	warn "begin emergency database checkpoint\n";
		3270	BDB::db_env_txn_checkpoint $DB_ENV;
		3271	warn "end emergency database checkpoint\n";
2277	};	3272	};
2278		3273
2279	warn "leave emergency perl save\n";	3274	warn "leave emergency perl save\n";
2280	}	3275	}
2281		3276
		3277	sub post_cleanup {
		3278	my ($make_core) = @_;
		3279
		3280	warn Carp::longmess "post_cleanup backtrace"
		3281	if $make_core;
		3282	}
		3283
2282	sub reload() {	3284	sub do_reload_perl() {
2283	# can/must only be called in main	3285	# can/must only be called in main
2284	if ($Coro::current != $Coro::main) {	3286	if ($Coro::current != $Coro::main) {
2285	warn "can only reload from main coroutine\n";	3287	warn "can only reload from main coroutine";
2286	return;	3288	return;
2287	}	3289	}
2288		3290
2289	warn "reloading...";	3291	warn "reloading...";
2290		3292
2291	warn "freezing server";	3293	warn "entering sync_job";
2292	my $guard = freeze_mainloop;	3294
		3295	cf::sync_job {
		3296	cf::write_runtime; # external watchdog should not bark
2293	cf::emergency_save;	3297	cf::emergency_save;
		3298	cf::write_runtime; # external watchdog should not bark
2294		3299
2295	warn "sync database to disk";	3300	warn "syncing database to disk";
2296	cf::db_sync;	3301	BDB::db_env_txn_checkpoint $DB_ENV;
2297	IO::AIO::flush;
2298		3302
2299	eval {
2300	# if anything goes wrong in here, we should simply crash as we already saved	3303	# if anything goes wrong in here, we should simply crash as we already saved
2301		3304
2302	warn "cancel all watchers";	3305	warn "cancelling all WF_AUTOCANCEL watchers";
2303	for (Event::all_watchers) {	3306	for (Event::all_watchers) {
2304	$_->cancel if $_->data & WF_AUTOCANCEL;	3307	$_->cancel if $_->data & WF_AUTOCANCEL;
2305	}	3308	}
2306		3309
		3310	warn "flushing outstanding aio requests";
		3311	for (;;) {
		3312	BDB::flush;
		3313	IO::AIO::flush;
		3314	Coro::cede;
		3315	last unless IO::AIO::nreqs || BDB::nreqs;
		3316	warn "iterate...";
		3317	}
		3318
		3319	++$RELOAD;
		3320
2307	warn "cancel all extension coros";	3321	warn "cancelling all extension coros";
2308	$_->cancel for values %EXT_CORO;	3322	$_->cancel for values %EXT_CORO;
2309	%EXT_CORO = ();	3323	%EXT_CORO = ();
2310		3324
2311	warn "remove commands";	3325	warn "removing commands";
2312	%COMMAND = ();	3326	%COMMAND = ();
2313		3327
2314	warn "remove ext commands";	3328	warn "removing ext/exti commands";
2315	%EXTCMD = ();	3329	%EXTCMD = ();
		3330	%EXTICMD = ();
2316		3331
2317	warn "unload/nuke all extensions";	3332	warn "unloading/nuking all extensions";
2318	for my $pkg (@EXTS) {	3333	for my $pkg (@EXTS) {
2319	warn "... unloading $pkg";	3334	warn "... unloading $pkg";
2320		3335
2321	if (my $cb = $pkg->can ("unload")) {	3336	if (my $cb = $pkg->can ("unload")) {
2322	eval {	3337	eval {
…		…
2327		3342
2328	warn "... nuking $pkg";	3343	warn "... nuking $pkg";
2329	Symbol::delete_package $pkg;	3344	Symbol::delete_package $pkg;
2330	}	3345	}
2331		3346
2332	warn "unload all perl modules loaded from $LIBDIR";	3347	warn "unloading all perl modules loaded from $LIBDIR";
2333	while (my ($k, $v) = each %INC) {	3348	while (my ($k, $v) = each %INC) {
2334	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3349	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2335		3350
2336	warn "removing <$k>";	3351	warn "... unloading $k";
2337	delete $INC{$k};	3352	delete $INC{$k};
2338		3353
2339	$k =~ s/\.pm$//;	3354	$k =~ s/\.pm$//;
2340	$k =~ s/\//::/g;	3355	$k =~ s/\//::/g;
2341		3356
…		…
2344	}	3359	}
2345		3360
2346	Symbol::delete_package $k;	3361	Symbol::delete_package $k;
2347	}	3362	}
2348		3363
2349	warn "get rid of safe::, as good as possible";	3364	warn "getting rid of safe::, as good as possible";
2350	Symbol::delete_package "safe::$_"	3365	Symbol::delete_package "safe::$_"
2351	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3366	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2352		3367
2353	warn "unload cf.pm \"a bit\"";	3368	warn "unloading cf.pm \"a bit\"";
2354	delete $INC{"cf.pm"};	3369	delete $INC{"cf.pm"};
		3370	delete $INC{"cf/pod.pm"};
2355		3371
2356	# don't, removes xs symbols, too,	3372	# don't, removes xs symbols, too,
2357	# and global variables created in xs	3373	# and global variables created in xs
2358	#Symbol::delete_package __PACKAGE__;	3374	#Symbol::delete_package __PACKAGE__;
2359		3375
		3376	warn "unload completed, starting to reload now";
		3377
2360	warn "reloading cf.pm";	3378	warn "reloading cf.pm";
2361	require cf;	3379	require cf;
2362	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3380	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2363		3381
2364	warn "load config and database again";	3382	warn "loading config and database again";
2365	cf::cfg_load;	3383	cf::reload_config;
2366	cf::db_load;
2367		3384
2368	warn "load extensions";	3385	warn "loading extensions";
2369	cf::load_extensions;	3386	cf::load_extensions;
2370		3387
2371	warn "reattach attachments to objects/players";	3388	warn "reattaching attachments to objects/players";
2372	_global_reattach;	3389	_global_reattach; # objects, sockets
2373	warn "reattach attachments to maps";	3390	warn "reattaching attachments to maps";
2374	reattach $_ for values %MAP;	3391	reattach $_ for values %MAP;
2375	};	3392	warn "reattaching attachments to players";
		3393	reattach $_ for values %PLAYER;
2376		3394
2377	if ($@) {	3395	warn "leaving sync_job";
		3396
		3397	1
		3398	} or do {
2378	warn $@;	3399	warn $@;
2379	warn "error while reloading, exiting.";	3400	warn "error while reloading, exiting.";
2380	exit 1;	3401	exit 1;
2381	}	3402	};
2382		3403
2383	warn "reloaded";	3404	warn "reloaded";
2384	};	3405	};
2385		3406
2386	#############################################################################	3407	our $RELOAD_WATCHER; # used only during reload
2387		3408
2388	unless ($LINK_MAP) {	3409	sub reload_perl() {
2389	$LINK_MAP = cf::map::new;	3410	# doing reload synchronously and two reloads happen back-to-back,
		3411	# coro crashes during coro_state_free->destroy here.
2390		3412
2391	$LINK_MAP->width (41);	3413	$RELOAD_WATCHER ||= Event->timer (
2392	$LINK_MAP->height (41);	3414	reentrant => 0,
2393	$LINK_MAP->alloc;
2394	$LINK_MAP->path ("{link}");
2395	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2396	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2397
2398	# dirty hack because... archetypes are not yet loaded
2399	Event->timer (
2400	after => 10,	3415	after => 0,
		3416	data => WF_AUTOCANCEL,
2401	cb => sub {	3417	cb => sub {
2402	$_[0]->w->cancel;	3418	do_reload_perl;
2403		3419	undef $RELOAD_WATCHER;
2404	# provide some exits "home"
2405	my $exit = cf::object::new "exit";
2406
2407	$exit->slaying ($EMERGENCY_POSITION->[0]);
2408	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2409	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2410
2411	$LINK_MAP->insert ($exit->clone, 19, 19);
2412	$LINK_MAP->insert ($exit->clone, 19, 20);
2413	$LINK_MAP->insert ($exit->clone, 19, 21);
2414	$LINK_MAP->insert ($exit->clone, 20, 19);
2415	$LINK_MAP->insert ($exit->clone, 20, 21);
2416	$LINK_MAP->insert ($exit->clone, 21, 19);
2417	$LINK_MAP->insert ($exit->clone, 21, 20);
2418	$LINK_MAP->insert ($exit->clone, 21, 21);
2419
2420	$exit->destroy;
2421	});	3420	},
2422		3421	);
2423	$LINK_MAP->{deny_save} = 1;
2424	$LINK_MAP->{deny_reset} = 1;
2425
2426	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2427	}	3422	}
2428		3423
2429	register_command "reload" => sub {	3424	register_command "reload" => sub {
2430	my ($who, $arg) = @_;	3425	my ($who, $arg) = @_;
2431		3426
2432	if ($who->flag (FLAG_WIZ)) {	3427	if ($who->flag (FLAG_WIZ)) {
2433	$who->message ("start of reload.");
2434	reload;
2435	$who->message ("end of reload.");	3428	$who->message ("reloading server.");
		3429	async { reload_perl };
2436	}	3430	}
2437	};	3431	};
2438		3432
2439	unshift @INC, $LIBDIR;	3433	unshift @INC, $LIBDIR;
		3434
		3435	my $bug_warning = 0;
		3436
		3437	our @WAIT_FOR_TICK;
		3438	our @WAIT_FOR_TICK_BEGIN;
		3439
		3440	sub wait_for_tick {
		3441	return unless $TICK_WATCHER->is_active;
		3442	return if $Coro::current == $Coro::main;
		3443
		3444	my $signal = new Coro::Signal;
		3445	push @WAIT_FOR_TICK, $signal;
		3446	$signal->wait;
		3447	}
		3448
		3449	sub wait_for_tick_begin {
		3450	return unless $TICK_WATCHER->is_active;
		3451	return if $Coro::current == $Coro::main;
		3452
		3453	my $signal = new Coro::Signal;
		3454	push @WAIT_FOR_TICK_BEGIN, $signal;
		3455	$signal->wait;
		3456	}
		3457
		3458	our $stat_fh;
		3459	sysopen $stat_fh, "/tmp/cfstats", Fcntl::O_APPEND | Fcntl::O_CREAT | Fcntl::O_WRONLY, 0600;#d#
2440		3460
2441	$TICK_WATCHER = Event->timer (	3461	$TICK_WATCHER = Event->timer (
2442	reentrant => 0,	3462	reentrant => 0,
		3463	parked => 1,
2443	prio => 0,	3464	prio => 0,
2444	at => $NEXT_TICK || $TICK,	3465	at => $NEXT_TICK || $TICK,
2445	data => WF_AUTOCANCEL,	3466	data => WF_AUTOCANCEL,
2446	cb => sub {	3467	cb => sub {
		3468	if ($Coro::current != $Coro::main) {
		3469	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3470	unless ++$bug_warning > 10;
		3471	return;
		3472	}
		3473
		3474	my @pl = cf::player::list; my $stats = sprintf "%.2f %d %d %d", $RUNTIME, (scalar @pl), cf::object::actives_size, cf::object::objects_size; #d#
		3475
		3476	$NOW = $tick_start = Event::time;
		3477
2447	cf::server_tick; # one server iteration	3478	cf::server_tick; # one server iteration
		3479
2448	$RUNTIME += $TICK;	3480	$RUNTIME += $TICK;
2449	$NEXT_TICK += $TICK;	3481	$NEXT_TICK += $TICK;
2450		3482
2451	$WAIT_FOR_TICK->broadcast;	3483	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2452	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3484	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3485	Coro::async_pool {
		3486	write_runtime
		3487	or warn "ERROR: unable to write runtime file: $!";
		3488	};
		3489	}
		3490
		3491	# my $AFTER = Event::time;
		3492	# warn $AFTER - $NOW;#d#
		3493
		3494	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3495	$sig->send;
		3496	}
		3497	while (my $sig = shift @WAIT_FOR_TICK) {
		3498	$sig->send;
		3499	}
		3500
		3501	$NOW = Event::time;
2453		3502
2454	# if we are delayed by four ticks or more, skip them all	3503	# if we are delayed by four ticks or more, skip them all
2455	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3504	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2456		3505
2457	$TICK_WATCHER->at ($NEXT_TICK);	3506	$TICK_WATCHER->at ($NEXT_TICK);
2458	$TICK_WATCHER->start;	3507	$TICK_WATCHER->start;
		3508
		3509	$LOAD = ($NOW - $tick_start) / $TICK;
		3510	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3511
		3512	_post_tick;
		3513
		3514	# gather some statistics#d#
		3515	$stats .= sprintf " %d\n", 10000 * ($NOW - $tick_start);#d#
		3516	IO::AIO::aio_write $stat_fh, undef, undef, $stats, 0;#d#
2459	},	3517	},
2460	);	3518	);
2461		3519
		3520	{
		3521	BDB::min_parallel 8;
2462	IO::AIO::max_poll_time $TICK * 0.2;	3522	BDB::max_poll_time $TICK * 0.1;
2463		3523	$BDB_POLL_WATCHER = Event->io (
2464	Event->io (	3524	reentrant => 0,
2465	fd => IO::AIO::poll_fileno,	3525	fd => BDB::poll_fileno,
2466	poll => 'r',	3526	poll => 'r',
2467	prio => 5,	3527	prio => 0,
2468	data => WF_AUTOCANCEL,
2469	cb => \&IO::AIO::poll_cb,
2470	);
2471
2472	Event->timer (
2473	data => WF_AUTOCANCEL,	3528	data => WF_AUTOCANCEL,
		3529	cb => \&BDB::poll_cb,
		3530	);
		3531
		3532	BDB::set_sync_prepare {
		3533	my $status;
		3534	my $current = $Coro::current;
		3535	(
		3536	sub {
		3537	$status = $!;
		3538	$current->ready; undef $current;
		3539	},
		3540	sub {
		3541	Coro::schedule while defined $current;
		3542	$! = $status;
		3543	},
		3544	)
		3545	};
		3546
		3547	unless ($DB_ENV) {
		3548	$DB_ENV = BDB::db_env_create;
		3549
		3550	cf::sync_job {
		3551	eval {
		3552	BDB::db_env_open
		3553	$DB_ENV,
		3554	$BDBDIR,
		3555	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3556	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3557	0666;
		3558
		3559	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3560
		3561	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3562	| BDB::LOG_AUTOREMOVE, 1);
		3563	$DB_ENV->set_lk_detect;
		3564	};
		3565
		3566	cf::cleanup "db_env_open(db): $@" if $@;
		3567	};
		3568	}
		3569
		3570	$BDB_CHECKPOINT_WATCHER = Event->timer (
2474	after => 0,	3571	after => 11,
2475	interval => 10,	3572	interval => 60,
		3573	hard => 1,
		3574	prio => 0,
		3575	data => WF_AUTOCANCEL,
2476	cb => sub {	3576	cb => sub {
2477	(Coro::unblock_sub {	3577	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
2478	write_runtime	3578	},
2479	or warn "ERROR: unable to write runtime file: $!";	3579	);
		3580	$BDB_TRICKLE_WATCHER = Event->timer (
		3581	after => 5,
		3582	interval => 10,
		3583	hard => 1,
		3584	prio => 0,
		3585	data => WF_AUTOCANCEL,
		3586	cb => sub {
		3587	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3588	},
		3589	);
		3590	}
		3591
		3592	{
		3593	IO::AIO::min_parallel 8;
		3594
		3595	undef $Coro::AIO::WATCHER;
		3596	IO::AIO::max_poll_time $TICK * 0.1;
		3597	$AIO_POLL_WATCHER = Event->io (
		3598	reentrant => 0,
		3599	data => WF_AUTOCANCEL,
		3600	fd => IO::AIO::poll_fileno,
		3601	poll => 'r',
		3602	prio => 6,
		3603	cb => \&IO::AIO::poll_cb,
		3604	);
		3605	}
		3606
		3607	my $_log_backtrace;
		3608
		3609	sub _log_backtrace {
		3610	my ($msg, @addr) = @_;
		3611
		3612	$msg =~ s/\n//;
		3613
		3614	# limit the # of concurrent backtraces
		3615	if ($_log_backtrace < 2) {
		3616	++$_log_backtrace;
		3617	async {
		3618	my @bt = fork_call {
		3619	@addr = map { sprintf "%x", $_ } @addr;
		3620	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3621	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3622	or die "addr2line: $!";
		3623
		3624	my @funcs;
		3625	my @res = <$fh>;
		3626	chomp for @res;
		3627	while (@res) {
		3628	my ($func, $line) = splice @res, 0, 2, ();
		3629	push @funcs, "[$func] $line";
		3630	}
		3631
		3632	@funcs
		3633	};
		3634
		3635	LOG llevInfo, "[ABT] $msg\n";
		3636	LOG llevInfo, "[ABT] $_\n" for @bt;
		3637	--$_log_backtrace;
2480	})->();	3638	};
		3639	} else {
		3640	LOG llevInfo, "[ABT] $msg\n";
		3641	LOG llevInfo, "[ABT] [suppressed]\n";
2481	},	3642	}
2482	);	3643	}
		3644
		3645	# load additional modules
		3646	use cf::pod;
2483		3647
2484	END { cf::emergency_save }	3648	END { cf::emergency_save }
2485		3649
2486	1	3650	1
2487		3651

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