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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.158 by root, Wed Jan 10 19:52:43 2007 UTC vs.
Revision 1.370 by root, Thu Sep 13 10:59:41 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3 ();	15	use Coro 3.64 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
		24	use Coro::Util ();
19		25
		26	use JSON::XS ();
		27	use BDB ();
20	use Data::Dumper;	28	use Data::Dumper;
21	use Digest::MD5;	29	use Digest::MD5;
22	use Fcntl;	30	use Fcntl;
		31	use YAML::Syck ();
23	use IO::AIO 2.32 ();	32	use IO::AIO 2.32 ();
24	use YAML::Syck ();
25	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
26		36
		37	# configure various modules to our taste
		38	#
		39	$Storable::canonical = 1; # reduce rsync transfers
		40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		42
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	43	$Event::Eval = 1; # no idea why this is required, but it is
28
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
30		44
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	45	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
33		47
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	48	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		49
		50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		51
36	our %COMMAND = ();	52	our %COMMAND = ();
37	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
		54
		55	our @EXTS = (); # list of extension package names
38	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
		58	our %EXT_CORO = (); # coroutines bound to extensions
		59	our %EXT_MAP = (); # pluggable maps
39		60
		61	our $RELOAD; # number of reloads so far
40	our @EVENT;	62	our @EVENT;
41	our $LIBDIR = datadir . "/ext";
42		63
43	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(!)
44	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
45	our $NEXT_TICK;	80	our $NEXT_TICK;
46	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;
47		88
48	our %CFG;	89	our %CFG;
49		90
50	our $UPTIME; $UPTIME ||= time;	91	our $UPTIME; $UPTIME ||= time;
51	our $RUNTIME;	92	our $RUNTIME;
52		93
53	our %PLAYER; # all users	94	our (%PLAYER, %PLAYER_LOADING); # all users
54	our %MAP; # all maps	95	our (%MAP, %MAP_LOADING ); # all maps
55	our $LINK_MAP; # the special {link} map	96	our $LINK_MAP; # the special {link} map, which is always available
56	our $RANDOM_MAPS = cf::localdir . "/random";
57	our %EXT_CORO; # coroutines bound to extensions
58		97
59	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	98	# used to convert map paths into valid unix filenames by replacing / by ∕
60	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 $tick_start; # for load detecting purposes
61		104
62	binmode STDOUT;	105	binmode STDOUT;
63	binmode STDERR;	106	binmode STDERR;
64		107
65	# read virtual server time, if available	108	# read virtual server time, if available
66	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	109	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
67	open my $fh, "<", cf::localdir . "/runtime"	110	open my $fh, "<", "$LOCALDIR/runtime"
68	or die "unable to read runtime file: $!";	111	or die "unable to read runtime file: $!";
69	$RUNTIME = <$fh> + 0.;	112	$RUNTIME = <$fh> + 0.;
70	}	113	}
71		114
72	mkdir cf::localdir;	115	mkdir $_
73	mkdir cf::localdir . "/" . cf::playerdir;	116	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
74	mkdir cf::localdir . "/" . cf::tmpdir;
75	mkdir cf::localdir . "/" . cf::uniquedir;
76	mkdir $RANDOM_MAPS;
77		117
78	# a special map that is always available
79	our $LINK_MAP;
80	our $EMERGENCY_POSITION;	118	our $EMERGENCY_POSITION;
		119
		120	sub cf::map::normalise;
81		121
82	#############################################################################	122	#############################################################################
83		123
84	=head2 GLOBAL VARIABLES	124	=head2 GLOBAL VARIABLES
85		125
…		…
92	=item $cf::RUNTIME	132	=item $cf::RUNTIME
93		133
94	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
95	every server tick.	135	every server tick.
96		136
97	=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
98		140
99	The perl library directory, where extensions and cf-specific modules can	141	Various directories - "/etc", read-only install directory, perl-library
100	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.
101		145
102	=item $cf::NOW	146	=item $cf::NOW
103		147
104	The time of the last (current) server tick.	148	The time of the last (current) server tick.
105		149
106	=item $cf::TICK	150	=item $cf::TICK
107		151
108	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.
109		163
110	=item %cf::CFG	164	=item %cf::CFG
111		165
112	Configuration for the server, loaded from C</etc/crossfire/config>, or	166	Configuration for the server, loaded from C</etc/crossfire/config>, or
113	from wherever your confdir points to.	167	from wherever your confdir points to.
114		168
115	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	169	=item cf::wait_for_tick, cf::wait_for_tick_begin
116		170
117	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
118	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
119	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.
120	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.
121		180
122	=back	181	=back
123		182
124	=cut	183	=cut
125		184
126	BEGIN {	185	BEGIN {
127	*CORE::GLOBAL::warn = sub {	186	*CORE::GLOBAL::warn = sub {
128	my $msg = join "", @_;	187	my $msg = join "", @_;
129	utf8::encode $msg;
130		188
131	$msg .= "\n"	189	$msg .= "\n"
132	unless $msg =~ /\n$/;	190	unless $msg =~ /\n$/;
		191
		192	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
133		193
134	LOG llevError, $msg;	194	LOG llevError, $msg;
135	};	195	};
136	}	196	}
137		197
138	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	198	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
139	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	199	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
140	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	200	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
141	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	201	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
142	@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';
143	@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)
144		205
145	# 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
146	# within the Safe compartment.	207	# within the Safe compartment.
147	for my $pkg (qw(	208	for my $pkg (qw(
148	cf::global cf::attachable	209	cf::global cf::attachable
…		…
157		218
158	$Event::DIED = sub {	219	$Event::DIED = sub {
159	warn "error in event callback: @_";	220	warn "error in event callback: @_";
160	};	221	};
161		222
162	my %ext_pkg;	223	#############################################################################
163	my @exts;
164	my @hook;
165		224
166	=head2 UTILITY FUNCTIONS	225	=head2 UTILITY FUNCTIONS
167		226
168	=over 4	227	=over 4
169		228
…		…
188	$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;
189	$d	248	$d
190	} || "[unable to dump $_[0]: '$@']";	249	} || "[unable to dump $_[0]: '$@']";
191	}	250	}
192		251
193	use JSON::Syck (); # TODO# replace by JSON::PC once working
194
195	=item $ref = cf::from_json $json	252	=item $ref = cf::from_json $json
196		253
197	Converts a JSON string into the corresponding perl data structure.	254	Converts a JSON string into the corresponding perl data structure.
198		255
199	=cut
200
201	sub from_json($) {
202	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203	JSON::Syck::Load $_[0]
204	}
205
206	=item $json = cf::to_json $ref	256	=item $json = cf::to_json $ref
207		257
208	Converts a perl data structure into its JSON representation.	258	Converts a perl data structure into its JSON representation.
209		259
210	=cut	260	=cut
211		261
212	sub to_json($) {	262	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	263
214	JSON::Syck::Dump $_[0]	264	sub to_json ($) { $json_coder->encode ($_[0]) }
215	}	265	sub from_json ($) { $json_coder->decode ($_[0]) }
216		266
217	=item cf::lock_wait $string	267	=item cf::lock_wait $string
218		268
219	Wait until the given lock is available. See cf::lock_acquire.	269	Wait until the given lock is available. See cf::lock_acquire.
220		270
…		…
223	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
224	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,
225	for example when the coroutine gets canceled), the lock is automatically	275	for example when the coroutine gets canceled), the lock is automatically
226	returned.	276	returned.
227		277
		278	Locks are *not* recursive, locking from the same coro twice results in a
		279	deadlocked coro.
		280
228	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
229	uses map_find and cf::map::load uses map_load).	282	uses map_find and cf::map::load uses map_load).
230		283
		284	=item $locked = cf::lock_active $string
		285
		286	Return true if the lock is currently active, i.e. somebody has locked it.
		287
231	=cut	288	=cut
232		289
233	our %LOCK;	290	our %LOCK;
		291	our %LOCKER;#d#
234		292
235	sub lock_wait($) {	293	sub lock_wait($) {
236	my ($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#
237		300
238	# wait for lock, if any	301	# wait for lock, if any
239	while ($LOCK{$key}) {	302	while ($LOCK{$key}) {
240	push @{ $LOCK{$key} }, $Coro::current;	303	push @{ $LOCK{$key} }, $Coro::current;
241	Coro::schedule;	304	Coro::schedule;
…		…
247		310
248	# wait, to be sure we are not locked	311	# wait, to be sure we are not locked
249	lock_wait $key;	312	lock_wait $key;
250		313
251	$LOCK{$key} = [];	314	$LOCK{$key} = [];
		315	$LOCKER{$key} = $Coro::current;#d#
252		316
253	Coro::guard {	317	Coro::guard {
		318	delete $LOCKER{$key};#d#
254	# wake up all waiters, to be on the safe side	319	# wake up all waiters, to be on the safe side
255	$_->ready for @{ delete $LOCK{$key} };	320	$_->ready for @{ delete $LOCK{$key} };
256	}	321	}
257	}	322	}
258		323
		324	sub lock_active($) {
		325	my ($key) = @_;
		326
		327	! ! $LOCK{$key}
		328	}
		329
259	sub freeze_mainloop {	330	sub freeze_mainloop {
260	return unless $TICK_WATCHER->is_active;	331	return unless $TICK_WATCHER->is_active;
261		332
262	my $guard = Coro::guard { $TICK_WATCHER->start };	333	my $guard = Coro::guard {
		334	$TICK_WATCHER->start;
		335	};
263	$TICK_WATCHER->stop;	336	$TICK_WATCHER->stop;
264	$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;
265	}	394	}
266		395
267	=item cf::async { BLOCK }	396	=item cf::async { BLOCK }
268		397
269	Currently the same as Coro::async_pool, meaning you cannot use	398	Currently the same as Coro::async_pool, meaning you cannot use
…		…
274		403
275	BEGIN { *async = \&Coro::async_pool }	404	BEGIN { *async = \&Coro::async_pool }
276		405
277	=item cf::sync_job { BLOCK }	406	=item cf::sync_job { BLOCK }
278		407
279	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)
280	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
281	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.
282		412
283	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
284	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
285	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
286	fast or be very important.	416	fast or be very important.
…		…
289		419
290	sub sync_job(&) {	420	sub sync_job(&) {
291	my ($job) = @_;	421	my ($job) = @_;
292		422
293	if ($Coro::current == $Coro::main) {	423	if ($Coro::current == $Coro::main) {
		424	my $time = Event::time;
		425
294	# this is the main coro, too bad, we have to block	426	# this is the main coro, too bad, we have to block
295	# till the operation succeeds, freezing the server :/	427	# till the operation succeeds, freezing the server :/
296		428
297	# TODO: use suspend/resume instead	429	# TODO: use suspend/resume instead
298	# (but this is cancel-safe)	430	# (but this is cancel-safe)
…		…
309		441
310	while ($busy) {	442	while ($busy) {
311	Coro::cede or Event::one_event;	443	Coro::cede or Event::one_event;
312	}	444	}
313		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
314	wantarray ? @res : $res[0]	453	wantarray ? @res : $res[0]
315	} else {	454	} else {
316	# we are in another coroutine, how wonderful, everything just works	455	# we are in another coroutine, how wonderful, everything just works
317		456
318	$job->()	457	$job->()
319	}	458	}
320	}	459	}
321		460
322	=item $coro = cf::async_ext { BLOCK }	461	=item $coro = cf::async_ext { BLOCK }
323		462
324	Like async, but this coro is automcatially being canceled when the	463	Like async, but this coro is automatically being canceled when the
325	extension calling this is being unloaded.	464	extension calling this is being unloaded.
326		465
327	=cut	466	=cut
328		467
329	sub async_ext(&) {	468	sub async_ext(&) {
…		…
337	$EXT_CORO{$coro+0} = $coro;	476	$EXT_CORO{$coro+0} = $coro;
338		477
339	$coro	478	$coro
340	}	479	}
341		480
342	sub write_runtime {	481	=item fork_call { }, $args
343	my $runtime = cf::localdir . "/runtime";
344		482
345	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	483	Executes the given code block with the given arguments in a seperate
346	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.
347		487
348	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	488	=cut
349	(aio_write $fh, 0, (length $value), $value, 0) <= 0
350	and return;
351		489
352	aio_fsync $fh	490	sub fork_call(&@) {
353	and return;	491	my ($cb, @args) = @_;
354		492
355	close $fh	493	# we seemingly have to make a local copy of the whole thing,
356	or return;	494	# otherwise perl prematurely frees the stuff :/
		495	# TODO: investigate and fix (likely this will be rather laborious)
357		496
358	aio_rename "$runtime~", $runtime	497	my @res = Coro::Util::fork_eval {
359	and return;	498	reset_signals;
		499	&$cb
		500	}, @args;
360		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
361	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 });
362	}	641	}
363		642
364	=back	643	=back
365		644
366	=cut	645	=cut
367
368	#############################################################################
369
370	package cf::path;
371
372	use overload
373	'""' => \&as_string;
374
375	# used to convert map paths into valid unix filenames by repalcing / by ∕
376	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
377
378	sub new {
379	my ($class, $path, $base) = @_;
380
381	$path = $path->as_string if ref $path;
382
383	my $self = bless { }, $class;
384
385	# {... are special paths that are not touched
386	# ?xxx/... are special absolute paths
387	# ?random/... random maps
388	# /! non-realised random map exit
389	# /... normal maps
390	# ~/... per-player maps without a specific player (DO NOT USE)
391	# ~user/... per-player map of a specific user
392
393	$path =~ s/$PATH_SEP/\//go;
394
395	if ($path =~ /^{/) {
396	# fine as it is
397	} elsif ($path =~ s{^\?random/}{}) {
398	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
399	$self->{random} = cf::from_json $data;
400	} else {
401	if ($path =~ s{^~([^/]+)?}{}) {
402	$self->{user_rel} = 1;
403
404	if (defined $1) {
405	$self->{user} = $1;
406	} elsif ($base =~ m{^~([^/]+)/}) {
407	$self->{user} = $1;
408	} else {
409	warn "cannot resolve user-relative path without user <$path,$base>\n";
410	}
411	} elsif ($path =~ /^\//) {
412	# already absolute
413	} else {
414	$base =~ s{[^/]+/?$}{};
415	return $class->new ("$base/$path");
416	}
417
418	for ($path) {
419	redo if s{/\.?/}{/};
420	redo if s{/[^/]+/\.\./}{/};
421	}
422	}
423
424	$self->{path} = $path;
425
426	$self
427	}
428
429	# the name / primary key / in-game path
430	sub as_string {
431	my ($self) = @_;
432
433	$self->{user_rel} ? "~$self->{user}$self->{path}"
434	: $self->{random} ? "?random/$self->{path}"
435	: $self->{path}
436	}
437
438	# the displayed name, this is a one way mapping
439	sub visible_name {
440	my ($self) = @_;
441
442	# if (my $rmp = $self->{random}) {
443	# # todo: be more intelligent about this
444	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
445	# } else {
446	$self->as_string
447	# }
448	}
449
450	# escape the /'s in the path
451	sub _escaped_path {
452	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
453	$path
454	}
455
456	# the original (read-only) location
457	sub load_path {
458	my ($self) = @_;
459
460	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
461	}
462
463	# the temporary/swap location
464	sub save_path {
465	my ($self) = @_;
466
467	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
468	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
469	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
470	}
471
472	# the unique path, might be eq to save_path
473	sub uniq_path {
474	my ($self) = @_;
475
476	$self->{user_rel} || $self->{random}
477	? undef
478	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
479	}
480
481	# return random map parameters, or undef
482	sub random_map_params {
483	my ($self) = @_;
484
485	$self->{random}
486	}
487
488	# this is somewhat ugly, but style maps do need special treatment
489	sub is_style_map {
490	$_[0]{path} =~ m{^/styles/}
491	}
492
493	package cf;
494		646
495	#############################################################################	647	#############################################################################
496		648
497	=head2 ATTACHABLE OBJECTS	649	=head2 ATTACHABLE OBJECTS
498		650
…		…
500	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")
501	to it. All such attachable objects support the following methods.	653	to it. All such attachable objects support the following methods.
502		654
503	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>
504	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
505	crossfire+).	657	Crossfire TRT).
506		658
507	=over 4	659	=over 4
508		660
509	=item $attachable->attach ($attachment, key => $value...)	661	=item $attachable->attach ($attachment, key => $value...)
510		662
…		…
624	our @CB_TYPE = (); # registry for type (cf-object class) based events	776	our @CB_TYPE = (); # registry for type (cf-object class) based events
625	our @CB_MAP = ();	777	our @CB_MAP = ();
626		778
627	my %attachment;	779	my %attachment;
628		780
		781	sub cf::attachable::thawer_merge {
		782	# simply override everything except _meta
		783	local $_[0]{_meta};
		784	%{$_[0]} = %{$_[1]};
		785	}
		786
629	sub _attach_cb($$$$) {	787	sub _attach_cb($$$$) {
630	my ($registry, $event, $prio, $cb) = @_;	788	my ($registry, $event, $prio, $cb) = @_;
631		789
632	use sort 'stable';	790	use sort 'stable';
633		791
…		…
667	$registry = $CB_TYPE[$object_type] ||= [];	825	$registry = $CB_TYPE[$object_type] ||= [];
668		826
669	} elsif ($type eq "subtype") {	827	} elsif ($type eq "subtype") {
670	defined $object_type or Carp::croak "subtype specified without type";	828	defined $object_type or Carp::croak "subtype specified without type";
671	my $object_subtype = shift @arg;	829	my $object_subtype = shift @arg;
672	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	830	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
673		831
674	} elsif ($type eq "package") {	832	} elsif ($type eq "package") {
675	my $pkg = shift @arg;	833	my $pkg = shift @arg;
676		834
677	while (my ($name, $id) = each %cb_id) {	835	while (my ($name, $id) = each %cb_id) {
…		…
706	_attach $registry, $klass, @attach;	864	_attach $registry, $klass, @attach;
707	}	865	}
708		866
709	$obj->{$name} = \%arg;	867	$obj->{$name} = \%arg;
710	} else {	868	} else {
711	warn "object uses attachment '$name' that is not available, postponing.\n";	869	warn "object uses attachment '$name' which is not available, postponing.\n";
712	}	870	}
713		871
714	$obj->{_attachment}{$name} = undef;	872	$obj->{_attachment}{$name} = undef;
715	}	873	}
716		874
…		…
718	if (ref $_[0]) {	876	if (ref $_[0]) {
719	_object_attach @_;	877	_object_attach @_;
720	} else {	878	} else {
721	_attach shift->_attach_registry, @_;	879	_attach shift->_attach_registry, @_;
722	}	880	}
		881	_recalc_want;
723	};	882	};
724		883
725	# all those should be optimised	884	# all those should be optimised
726	sub cf::attachable::detach {	885	sub cf::attachable::detach {
727	my ($obj, $name) = @_;	886	my ($obj, $name) = @_;
…		…
730	delete $obj->{_attachment}{$name};	889	delete $obj->{_attachment}{$name};
731	reattach ($obj);	890	reattach ($obj);
732	} else {	891	} else {
733	Carp::croak "cannot, currently, detach class attachments";	892	Carp::croak "cannot, currently, detach class attachments";
734	}	893	}
		894	_recalc_want;
735	};	895	};
736		896
737	sub cf::attachable::attached {	897	sub cf::attachable::attached {
738	my ($obj, $name) = @_;	898	my ($obj, $name) = @_;
739		899
…		…
754	";	914	";
755	die if $@;	915	die if $@;
756	}	916	}
757		917
758	our $override;	918	our $override;
759	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?
760		920
761	sub override {	921	sub override {
762	$override = 1;	922	$override = 1;
763	@invoke_results = ();	923	@INVOKE_RESULTS = (@_);
764	}	924	}
765		925
766	sub do_invoke {	926	sub do_invoke {
767	my $event = shift;	927	my $event = shift;
768	my $callbacks = shift;	928	my $callbacks = shift;
769		929
770	@invoke_results = ();	930	@INVOKE_RESULTS = ();
771		931
772	local $override;	932	local $override;
773		933
774	for (@$callbacks) {	934	for (@$callbacks) {
775	eval { &{$_->[1]} };	935	eval { &{$_->[1]} };
…		…
792		952
793	Generate an object-specific event with the given arguments.	953	Generate an object-specific event with the given arguments.
794		954
795	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
796	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
797	results (if you must, access C<@cf::invoke_results> directly).	957	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
798		958
799	=back	959	=back
800		960
801	=cut	961	=cut
802		962
803	#############################################################################	963	#############################################################################
804	# 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	}
805		976
806	sub reattach {	977	sub reattach {
807	# basically do the same as instantiate, without calling instantiate	978	# basically do the same as instantiate, without calling instantiate
808	my ($obj) = @_;	979	my ($obj) = @_;
		980
		981	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
809		982
810	my $registry = $obj->registry;	983	my $registry = $obj->registry;
811		984
812	@$registry = ();	985	@$registry = ();
813		986
…		…
852	);	1025	);
853		1026
854	sub object_freezer_save {	1027	sub object_freezer_save {
855	my ($filename, $rdata, $objs) = @_;	1028	my ($filename, $rdata, $objs) = @_;
856		1029
		1030	my $guard = cf::lock_acquire "io";
		1031
857	sync_job {	1032	sync_job {
858	if (length $$rdata) {	1033	if (length $$rdata) {
		1034	utf8::decode (my $decname = $filename);
859	warn sprintf "saving %s (%d,%d)\n",	1035	warn sprintf "saving %s (%d,%d)\n",
860	$filename, length $$rdata, scalar @$objs;	1036	$decname, length $$rdata, scalar @$objs;
861		1037
862	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1038	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
863	chmod SAVE_MODE, $fh;	1039	chmod SAVE_MODE, $fh;
864	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1040	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
865	aio_fsync $fh;	1041	aio_fsync $fh if $cf::USE_FSYNC;
866	close $fh;	1042	close $fh;
867		1043
868	if (@$objs) {	1044	if (@$objs) {
869	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) {
870	chmod SAVE_MODE, $fh;	1046	chmod SAVE_MODE, $fh;
871	my $data = Storable::nfreeze { version => 1, objs => $objs };	1047	my $data = Storable::nfreeze { version => 1, objs => $objs };
872	aio_write $fh, 0, (length $data), $data, 0;	1048	aio_write $fh, 0, (length $data), $data, 0;
873	aio_fsync $fh;	1049	aio_fsync $fh if $cf::USE_FSYNC;
874	close $fh;	1050	close $fh;
875	aio_rename "$filename.pst~", "$filename.pst";	1051	aio_rename "$filename.pst~", "$filename.pst";
876	}	1052	}
877	} else {	1053	} else {
878	aio_unlink "$filename.pst";	1054	aio_unlink "$filename.pst";
…		…
884	}	1060	}
885	} else {	1061	} else {
886	aio_unlink $filename;	1062	aio_unlink $filename;
887	aio_unlink "$filename.pst";	1063	aio_unlink "$filename.pst";
888	}	1064	}
889	}	1065	};
		1066
		1067	undef $guard;
890	}	1068	}
891		1069
892	sub object_freezer_as_string {	1070	sub object_freezer_as_string {
893	my ($rdata, $objs) = @_;	1071	my ($rdata, $objs) = @_;
894		1072
…		…
899		1077
900	sub object_thawer_load {	1078	sub object_thawer_load {
901	my ($filename) = @_;	1079	my ($filename) = @_;
902		1080
903	my ($data, $av);	1081	my ($data, $av);
		1082
		1083	my $guard = cf::lock_acquire "io";
904		1084
905	(aio_load $filename, $data) >= 0	1085	(aio_load $filename, $data) >= 0
906	or return;	1086	or return;
907		1087
908	unless (aio_stat "$filename.pst") {	1088	unless (aio_stat "$filename.pst") {
909	(aio_load "$filename.pst", $av) >= 0	1089	(aio_load "$filename.pst", $av) >= 0
910	or return;	1090	or return;
		1091
		1092	undef $guard;
911	$av = eval { (Storable::thaw $av)->{objs} };	1093	$av = eval { (Storable::thaw $av)->{objs} };
912	}	1094	}
913		1095
		1096	utf8::decode (my $decname = $filename);
914	warn sprintf "loading %s (%d)\n",	1097	warn sprintf "loading %s (%d,%d)\n",
915	$filename, length $data, scalar @{$av || []};#d#	1098	$decname, length $data, scalar @{$av || []};
		1099
916	return ($data, $av);	1100	($data, $av)
917	}	1101	}
		1102
		1103	=head2 COMMAND CALLBACKS
		1104
		1105	=over 4
		1106
		1107	=cut
918		1108
919	#############################################################################	1109	#############################################################################
920	# command handling &c	1110	# command handling &c
921		1111
922	=item cf::register_command $name => \&callback($ob,$args);	1112	=item cf::register_command $name => \&callback($ob,$args);
…		…
935	push @{ $COMMAND{$name} }, [$caller, $cb];	1125	push @{ $COMMAND{$name} }, [$caller, $cb];
936	}	1126	}
937		1127
938	=item cf::register_extcmd $name => \&callback($pl,$packet);	1128	=item cf::register_extcmd $name => \&callback($pl,$packet);
939		1129
940	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.
941		1135
942	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
943	called.	1137	called.
944		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
945	=cut	1150	=cut
946		1151
947	sub register_extcmd {	1152	sub register_extcmd {
948	my ($name, $cb) = @_;	1153	my ($name, $cb) = @_;
949		1154
950	my $caller = caller;
951	#warn "registering extcmd '$name' to '$caller'";
952
953	$EXTCMD{$name} = [$cb, $caller];	1155	$EXTCMD{$name} = $cb;
		1156	}
		1157
		1158	sub register_exticmd {
		1159	my ($name, $cb) = @_;
		1160
		1161	$EXTICMD{$name} = $cb;
954	}	1162	}
955		1163
956	cf::player->attach (	1164	cf::player->attach (
957	on_command => sub {	1165	on_command => sub {
958	my ($pl, $name, $params) = @_;	1166	my ($pl, $name, $params) = @_;
…		…
967	cf::override;	1175	cf::override;
968	},	1176	},
969	on_extcmd => sub {	1177	on_extcmd => sub {
970	my ($pl, $buf) = @_;	1178	my ($pl, $buf) = @_;
971		1179
972	my $msg = eval { from_json $buf };	1180	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
973		1181
974	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
975	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1190	if (my $cb = $EXTCMD{$type}) {
976	if (my %reply = $cb->[0]->($pl, $msg)) {	1191	@reply = $cb->($pl, @payload);
977	$pl->ext_reply ($msg->{msgid}, %reply);
978	}
979	}	1192	}
		1193
		1194	$pl->ext_reply ($reply, @reply)
		1195	if $reply;
		1196
980	} else {	1197	} else {
981	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1198	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
982	}	1199	}
983		1200
984	cf::override;	1201	cf::override;
985	},	1202	},
986	);	1203	);
987		1204
988	sub register {
989	my ($base, $pkg) = @_;
990
991	#TODO
992	}
993
994	sub load_extension {
995	my ($path) = @_;
996
997	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
998	my $base = $1;
999	my $pkg = $1;
1000	$pkg =~ s/[^[:word:]]/_/g;
1001	$pkg = "ext::$pkg";
1002
1003	warn "loading '$path' into '$pkg'\n";
1004
1005	open my $fh, "<:utf8", $path
1006	or die "$path: $!";
1007
1008	my $source =
1009	"package $pkg; use strict; use utf8;\n"
1010	. "#line 1 \"$path\"\n{\n"
1011	. (do { local $/; <$fh> })
1012	. "\n};\n1";
1013
1014	eval $source
1015	or die $@ ? "$path: $@\n"
1016	: "extension disabled.\n";
1017
1018	push @exts, $pkg;
1019	$ext_pkg{$base} = $pkg;
1020
1021	# no strict 'refs';
1022	# @{"$pkg\::ISA"} = ext::;
1023
1024	register $base, $pkg;
1025	}
1026
1027	sub unload_extension {
1028	my ($pkg) = @_;
1029
1030	warn "removing extension $pkg\n";
1031
1032	# remove hooks
1033	#TODO
1034	# for my $idx (0 .. $#PLUGIN_EVENT) {
1035	# delete $hook[$idx]{$pkg};
1036	# }
1037
1038	# remove commands
1039	for my $name (keys %COMMAND) {
1040	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1041
1042	if (@cb) {
1043	$COMMAND{$name} = \@cb;
1044	} else {
1045	delete $COMMAND{$name};
1046	}
1047	}
1048
1049	# remove extcmds
1050	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1051	delete $EXTCMD{$name};
1052	}
1053
1054	if (my $cb = $pkg->can ("unload")) {
1055	eval {
1056	$cb->($pkg);
1057	1
1058	} or warn "$pkg unloaded, but with errors: $@";
1059	}
1060
1061	Symbol::delete_package $pkg;
1062	}
1063
1064	sub load_extensions {	1205	sub load_extensions {
		1206	cf::sync_job {
		1207	my %todo;
		1208
1065	for my $ext (<$LIBDIR/*.ext>) {	1209	for my $path (<$LIBDIR/*.ext>) {
1066	next unless -r $ext;	1210	next unless -r $path;
1067	eval {	1211
1068	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;
1069	1	1269	}
1070	} or warn "$ext not loaded: $@";	1270
		1271	skip:
		1272	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1273	unless $progress;
		1274	}
1071	}	1275	};
1072	}	1276	}
1073		1277
1074	#############################################################################	1278	#############################################################################
1075	# load/save/clean perl data associated with a map
1076		1279
1077	*cf::mapsupport::on_clean = sub {	1280	=back
1078	my ($map) = @_;
1079
1080	my $path = $map->tmpname;
1081	defined $path or return;
1082
1083	unlink "$path.pst";
1084	};
1085
1086	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1087
1088	#############################################################################
1089		1281
1090	=head2 CORE EXTENSIONS	1282	=head2 CORE EXTENSIONS
1091		1283
1092	Functions and methods that extend core crossfire objects.	1284	Functions and methods that extend core crossfire objects.
1093		1285
…		…
1099		1291
1100	=head3 cf::player	1292	=head3 cf::player
1101		1293
1102	=over 4	1294	=over 4
1103		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
1104	=item cf::player::find $login	1310	=item cf::player::find $login
1105		1311
1106	Returns the given player object, loading it if necessary (might block).	1312	Returns the given player object, loading it if necessary (might block).
1107		1313
1108	=cut	1314	=cut
1109		1315
1110	sub playerdir($) {	1316	sub playerdir($) {
1111	cf::localdir	1317	"$PLAYERDIR/"
1112	. "/"
1113	. cf::playerdir
1114	. "/"
1115	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1318	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1116	}	1319	}
1117		1320
1118	sub path($) {	1321	sub path($) {
1119	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1322	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1120		1323
1121	(playerdir $login) . "/$login.pl"	1324	(playerdir $login) . "/playerdata"
1122	}	1325	}
1123		1326
1124	sub find_active($) {	1327	sub find_active($) {
1125	$cf::PLAYER{$_[0]}	1328	$cf::PLAYER{$_[0]}
1126	and $cf::PLAYER{$_[0]}->active	1329	and $cf::PLAYER{$_[0]}->active
…		…
1129		1332
1130	sub exists($) {	1333	sub exists($) {
1131	my ($login) = @_;	1334	my ($login) = @_;
1132		1335
1133	$cf::PLAYER{$login}	1336	$cf::PLAYER{$login}
1134	or cf::sync_job { !aio_stat $login }	1337	or cf::sync_job { !aio_stat path $login }
1135	}	1338	}
1136		1339
1137	sub find($) {	1340	sub find($) {
1138	return $cf::PLAYER{$_[0]} || do {	1341	return $cf::PLAYER{$_[0]} || do {
1139	my $login = $_[0];	1342	my $login = $_[0];
1140		1343
1141	my $guard = cf::lock_acquire "user_find:$login";	1344	my $guard = cf::lock_acquire "user_find:$login";
1142		1345
1143	$cf::PLAYER{$_[0]} || do {	1346	$cf::PLAYER{$_[0]} || do {
1144	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
1145	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;
1146	$cf::PLAYER{$login} = $pl	1362	$cf::PLAYER{$login} = $pl
1147	}	1363	}
1148	}	1364	}
1149	}	1365	}
1150		1366
…		…
1160		1376
1161	aio_mkdir playerdir $pl, 0770;	1377	aio_mkdir playerdir $pl, 0770;
1162	$pl->{last_save} = $cf::RUNTIME;	1378	$pl->{last_save} = $cf::RUNTIME;
1163		1379
1164	$pl->save_pl ($path);	1380	$pl->save_pl ($path);
1165	Coro::cede;	1381	cf::cede_to_tick;
1166	}	1382	}
1167		1383
1168	sub new($) {	1384	sub new($) {
1169	my ($login) = @_;	1385	my ($login) = @_;
1170		1386
…		…
1176	$cf::PLAYER{$login} = $self;	1392	$cf::PLAYER{$login} = $self;
1177		1393
1178	$self	1394	$self
1179	}	1395	}
1180		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
1181	=item $pl->quit_character	1407	=item $pl->quit_character
1182		1408
1183	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
1184	be destroyed. May block for a long time.	1410	be destroyed. May block for a long time.
1185		1411
1186	=cut	1412	=cut
1187		1413
1188	sub quit_character {	1414	sub quit_character {
1189	my ($pl) = @_;	1415	my ($pl) = @_;
		1416
		1417	my $name = $pl->ob->name;
1190		1418
1191	$pl->{deny_save} = 1;	1419	$pl->{deny_save} = 1;
1192	$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
1193		1421
1194	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1422	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1199	my $path = playerdir $pl;	1427	my $path = playerdir $pl;
1200	my $temp = "$path~$cf::RUNTIME~deleting~";	1428	my $temp = "$path~$cf::RUNTIME~deleting~";
1201	aio_rename $path, $temp;	1429	aio_rename $path, $temp;
1202	delete $cf::PLAYER{$pl->ob->name};	1430	delete $cf::PLAYER{$pl->ob->name};
1203	$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
1204	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;
1205	}	1453	}
1206		1454
1207	=item cf::player::list_logins	1455	=item cf::player::list_logins
1208		1456
1209	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
1210	while and may block, so not sync_job-capable, ever.	1458	while and may block, so not sync_job-capable, ever.
1211		1459
1212	=cut	1460	=cut
1213		1461
1214	sub list_logins {	1462	sub list_logins {
1215	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1463	my $dirs = aio_readdir $PLAYERDIR
1216	or return [];	1464	or return [];
1217		1465
1218	my @logins;	1466	my @logins;
1219		1467
1220	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") {
1221	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1473	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1222	aio_read $fh, 0, 512, my $buf, 0 or next;	1474	aio_read $fh, 0, 512, my $buf, 0 or next;
1223	$buf !~ /^password -------------$/m or next; # official not-valid tag	1475	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1476	}
1224		1477
1225	utf8::decode $login;	1478	utf8::decode $login;
1226	push @logins, $login;	1479	push @logins, $login;
1227	}	1480	}
1228		1481
1229	\@logins	1482	\@logins
1230	}	1483	}
1231		1484
1232	=item $player->maps	1485	=item $player->maps
1233		1486
1234	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
1235	player. May block.	1488	player. May block.
1236		1489
1237	=cut	1490	=cut
1238		1491
1239	sub maps($) {	1492	sub maps($) {
1240	my ($pl) = @_;	1493	my ($pl) = @_;
		1494
		1495	$pl = ref $pl ? $pl->ob->name : $pl;
1241		1496
1242	my $files = aio_readdir playerdir $pl	1497	my $files = aio_readdir playerdir $pl
1243	or return;	1498	or return;
1244		1499
1245	my @paths;	1500	my @paths;
…		…
1247	for (@$files) {	1502	for (@$files) {
1248	utf8::decode $_;	1503	utf8::decode $_;
1249	next if /\.(?:pl|pst)$/;	1504	next if /\.(?:pl|pst)$/;
1250	next unless /^$PATH_SEP/o;	1505	next unless /^$PATH_SEP/o;
1251		1506
1252	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;	1507	push @paths, cf::map::normalise "~$pl/$_";
1253	}	1508	}
1254		1509
1255	\@paths	1510	\@paths
1256	}	1511	}
1257		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
1258	=item $player->ext_reply ($msgid, $msgtype, %msg)	1564	=item $player->ext_reply ($msgid, @msg)
1259		1565
1260	Sends an ext reply to the player.	1566	Sends an ext reply to the player.
1261		1567
1262	=cut	1568	=cut
1263		1569
1264	sub ext_reply($$$%) {	1570	sub ext_reply($$@) {
1265	my ($self, $id, %msg) = @_;	1571	my ($self, $id, @msg) = @_;
1266		1572
1267	$msg{msgid} = $id;	1573	$self->ns->ext_reply ($id, @msg)
1268
1269	$self->send ("ext " . cf::to_json \%msg);
1270	}	1574	}
1271		1575
1272	package cf;	1576	=item $player->ext_msg ($type, @msg)
		1577
		1578	Sends an ext event to the client.
		1579
		1580	=cut
		1581
		1582	sub ext_msg($$@) {
		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	}
1273		1616
1274	=back	1617	=back
1275
1276		1618
1277	=head3 cf::map	1619	=head3 cf::map
1278		1620
1279	=over 4	1621	=over 4
1280		1622
…		…
1283	package cf::map;	1625	package cf::map;
1284		1626
1285	use Fcntl;	1627	use Fcntl;
1286	use Coro::AIO;	1628	use Coro::AIO;
1287		1629
		1630	use overload
		1631	'""' => \&as_string,
		1632	fallback => 1;
		1633
1288	our $MAX_RESET = 3600;	1634	our $MAX_RESET = 3600;
1289	our $DEFAULT_RESET = 3000;	1635	our $DEFAULT_RESET = 3000;
1290		1636
1291	sub generate_random_map {	1637	sub generate_random_map {
1292	my ($path, $rmp) = @_;	1638	my ($self, $rmp) = @_;
1293
1294	# mit "rum" bekleckern, nicht	1639	# mit "rum" bekleckern, nicht
1295	cf::map::_create_random_map	1640	$self->_create_random_map (
1296	$path,
1297	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1641	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1298	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1642	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1299	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1643	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1300	$rmp->{exit_on_final_map},	1644	$rmp->{exit_on_final_map},
1301	$rmp->{xsize}, $rmp->{ysize},	1645	$rmp->{xsize}, $rmp->{ysize},
1302	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1646	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1303	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1647	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1304	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1648	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1305	$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},
1306	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1650	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1307	(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"
1308	}	1780	}
1309		1781
1310	# and all this just because we cannot iterate over	1782	# and all this just because we cannot iterate over
1311	# all maps in C++...	1783	# all maps in C++...
1312	sub change_all_map_light {	1784	sub change_all_map_light {
…		…
1314		1786
1315	$_->change_map_light ($change)	1787	$_->change_map_light ($change)
1316	for grep $_->outdoor, values %cf::MAP;	1788	for grep $_->outdoor, values %cf::MAP;
1317	}	1789	}
1318		1790
		1791	sub decay_objects {
		1792	my ($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
1319	sub try_load_header($) {	1807	sub load_header_from($) {
1320	my ($path) = @_;	1808	my ($self, $path) = @_;
1321		1809
1322	utf8::encode $path;	1810	utf8::encode $path;
1323	aio_open $path, O_RDONLY, 0	1811	my $f = new_from_file cf::object::thawer $path
1324	or return;	1812	or return;
1325		1813
1326	my $map = cf::map::new	1814	$self->_load_header ($f)
1327	or return;	1815	or return;
1328		1816
1329	# for better error messages only, will be overwritten	1817	local $MAP_LOADING{$self->{path}} = $self;
1330	$map->path ($path);	1818	$f->resolve_delayed_derefs;
1331		1819
1332	$map->load_header ($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
1333	or return;	1863	or return;
		1864	$self->prepare_orig;
		1865	}
1334		1866
1335	$map->{load_path} = $path;	1867	$self->{deny_reset} = 1
		1868	if $self->no_reset;
1336		1869
1337	$map	1870	$self->default_region (cf::region::find_by_path $self->{path})
		1871	unless $self->default_region;
		1872
		1873	1
1338	}	1874	}
1339		1875
1340	sub find;	1876	sub find;
1341	sub find {	1877	sub find {
1342	my ($path, $origin) = @_;	1878	my ($path, $origin) = @_;
1343		1879
1344	#warn "find<$path,$origin>\n";#d#
1345
1346	$path = new cf::path $path, $origin && $origin->path;	1880	$path = normalise $path, $origin && $origin->path;
1347	my $key = $path->as_string;
1348		1881
		1882	cf::lock_wait "map_data:$path";#d#remove
1349	cf::lock_wait "map_find:$key";	1883	cf::lock_wait "map_find:$path";
1350		1884
1351	$cf::MAP{$key} || do {	1885	$cf::MAP{$path} || do {
1352	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
1353		1888
1354	# do it the slow way	1889	my $map = new_from_path cf::map $path
1355	my $map = try_load_header $path->save_path;
1356
1357	Coro::cede;
1358
1359	if ($map) {
1360	$map->last_access ((delete $map->{last_access})
1361	|| $cf::RUNTIME); #d#
1362	# safety
1363	$map->{instantiate_time} = $cf::RUNTIME
1364	if $map->{instantiate_time} > $cf::RUNTIME;
1365	} else {
1366	if (my $rmp = $path->random_map_params) {
1367	$map = generate_random_map $key, $rmp;
1368	} else {
1369	$map = try_load_header $path->load_path;
1370	}
1371
1372	$map or return;	1890	or return;
1373		1891
1374	$map->{load_original} = 1;
1375	$map->{instantiate_time} = $cf::RUNTIME;
1376	$map->last_access ($cf::RUNTIME);
1377	$map->instantiate;
1378
1379	# per-player maps become, after loading, normal maps
1380	$map->per_player (0) if $path->{user_rel};
1381	}
1382
1383	$map->path ($key);
1384	$map->{path} = $path;
1385	$map->{last_save} = $cf::RUNTIME;	1892	$map->{last_save} = $cf::RUNTIME;
1386		1893
1387	Coro::cede;	1894	$map->load_header
		1895	or return;
1388		1896
1389	if ($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;
1390	$map->reset;	1902	$map->reset;
1391	undef $guard;
1392	$map = find $path	1903	return find $path;
1393	or return;
1394	}	1904	}
1395		1905
1396	$cf::MAP{$key} = $map	1906	$cf::MAP{$path} = $map
1397	}	1907	}
1398	}	1908	}
		1909
		1910	sub pre_load { }
		1911	sub post_load { }
1399		1912
1400	sub load {	1913	sub load {
1401	my ($self) = @_;	1914	my ($self) = @_;
1402		1915
		1916	local $self->{deny_reset} = 1; # loading can take a long time
		1917
1403	my $path = $self->{path};	1918	my $path = $self->{path};
		1919
		1920	{
1404	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1921	my $guard = cf::lock_acquire "map_data:$path";
1405		1922
		1923	return unless $self->valid;
1406	return if $self->in_memory != cf::MAP_SWAPPED;	1924	return unless $self->in_memory == cf::MAP_SWAPPED;
1407		1925
1408	$self->in_memory (cf::MAP_LOADING);	1926	$self->in_memory (cf::MAP_LOADING);
1409		1927
1410	$self->alloc;	1928	$self->alloc;
1411	$self->load_objects ($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)
1412	or return;	1936	or return;
1413		1937
1414	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1938	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1415	if delete $self->{load_original};	1939	if delete $self->{load_original};
1416		1940
1417	if (my $uniq = $path->uniq_path) {	1941	if (my $uniq = $self->uniq_path) {
1418	utf8::encode $uniq;	1942	utf8::encode $uniq;
1419	if (aio_open $uniq, O_RDONLY, 0) {	1943	unless (aio_stat $uniq) {
		1944	if (my $f = new_from_file cf::object::thawer $uniq) {
1420	$self->clear_unique_items;	1945	$self->clear_unique_items;
1421	$self->load_objects ($uniq, 0);	1946	$self->_load_objects ($f);
		1947	$f->resolve_delayed_derefs;
		1948	}
1422	}	1949	}
1423	}	1950	}
1424		1951
1425	Coro::cede;	1952	$f->resolve_delayed_derefs;
1426		1953
		1954	cf::cede_to_tick;
1427	# now do the right thing for maps	1955	# now do the right thing for maps
1428	$self->link_multipart_objects;	1956	$self->link_multipart_objects;
1429
1430	if ($self->{path}->is_style_map) {
1431	$self->{deny_save} = 1;
1432	$self->{deny_reset} = 1;
1433	} else {
1434	$self->fix_auto_apply;
1435	$self->decay_objects;
1436	$self->update_buttons;
1437	$self->set_darkness_map;
1438	$self->difficulty ($self->estimate_difficulty)	1957	$self->difficulty ($self->estimate_difficulty)
1439	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;
1440	$self->activate;	1968	$self->activate;
1441	}	1969	}
1442		1970
1443	Coro::cede;	1971	$self->{last_save} = $cf::RUNTIME;
		1972	$self->last_access ($cf::RUNTIME);
1444		1973
1445	$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	$self
1446	}	1990	}
1447		1991
1448	# find and load all maps in the 3x3 area around a map	1992	# find and load all maps in the 3x3 area around a map
1449	sub load_diag {	1993	sub load_neighbours {
1450	my ($map) = @_;	1994	my ($map) = @_;
1451		1995
1452	my @diag; # diagonal neighbours	1996	my @neigh; # diagonal neighbours
1453		1997
1454	for (0 .. 3) {	1998	for (0 .. 3) {
1455	my $neigh = $map->tile_path ($_)	1999	my $neigh = $map->tile_path ($_)
1456	or next;	2000	or next;
1457	$neigh = find $neigh, $map	2001	$neigh = find $neigh, $map
1458	or next;	2002	or next;
1459	$neigh->load;	2003	$neigh->load;
1460		2004
		2005	push @neigh,
1461	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2006	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1462	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2007	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1463	}	2008	}
1464		2009
1465	for (@diag) {	2010	for (grep defined $_->[0], @neigh) {
		2011	my ($path, $origin) = @$_;
1466	my $neigh = find @$_	2012	my $neigh = find $path, $origin
1467	or next;	2013	or next;
1468	$neigh->load;	2014	$neigh->load;
1469	}	2015	}
1470	}	2016	}
1471		2017
…		…
1476	}	2022	}
1477		2023
1478	sub do_load_sync {	2024	sub do_load_sync {
1479	my ($map) = @_;	2025	my ($map) = @_;
1480		2026
		2027	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2028	if $Coro::current == $Coro::main;
		2029
1481	cf::sync_job { $map->load };	2030	cf::sync_job { $map->load };
1482	}	2031	}
1483		2032
1484	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
1485	our $MAP_PREFETCHER = Coro::async {	2047	$MAP_PREFETCHER ||= cf::async {
1486	while () {
1487	while (%MAP_PREFETCH) {	2048	while (%MAP_PREFETCH) {
1488	my $key = each %MAP_PREFETCH	2049	while (my ($k, $v) = each %MAP_PREFETCH) {
1489	or next;	2050	if (my $map = find $k) {
		2051	$map->load if $v;
		2052	}
		2053
1490	my $path = delete $MAP_PREFETCH{$key};	2054	delete $MAP_PREFETCH{$k};
1491
1492	my $map = find $path
1493	or next;
1494	$map->load;
1495	}	2055	}
1496	Coro::schedule;	2056	}
		2057	undef $MAP_PREFETCHER;
1497	}	2058	};
1498	};
1499
1500	sub find_async {
1501	my ($path, $origin) = @_;
1502
1503	$path = new cf::path $path, $origin && $origin->path;
1504	my $key = $path->as_string;
1505
1506	if (my $map = $cf::MAP{$key}) {
1507	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1508	}
1509
1510	$MAP_PREFETCH{$key} = $path;
1511	$MAP_PREFETCHER->ready;	2059	$MAP_PREFETCHER->prio (6);
1512		2060
1513	()	2061	()
1514	}	2062	}
1515		2063
1516	sub save {	2064	sub save {
1517	my ($self) = @_;	2065	my ($self) = @_;
1518		2066
1519	my $lock = cf::lock_acquire "map_data:" . $self->path;	2067	my $lock = cf::lock_acquire "map_data:$self->{path}";
1520		2068
1521	$self->{last_save} = $cf::RUNTIME;	2069	$self->{last_save} = $cf::RUNTIME;
1522		2070
1523	return unless $self->dirty;	2071	return unless $self->dirty;
1524		2072
1525	my $save = $self->{path}->save_path; utf8::encode $save;	2073	my $save = $self->save_path; utf8::encode $save;
1526	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2074	my $uniq = $self->uniq_path; utf8::encode $uniq;
1527		2075
1528	$self->{load_path} = $save;	2076	$self->{load_path} = $save;
1529		2077
1530	return if $self->{deny_save};	2078	return if $self->{deny_save};
1531		2079
…		…
1534	cf::async {	2082	cf::async {
1535	$_->contr->save for $self->players;	2083	$_->contr->save for $self->players;
1536	};	2084	};
1537		2085
1538	if ($uniq) {	2086	if ($uniq) {
1539	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2087	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1540	$self->save_objects ($uniq, cf::IO_UNIQUES);	2088	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1541	} else {	2089	} else {
1542	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2090	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1543	}	2091	}
1544	}	2092	}
1545		2093
1546	sub swap_out {	2094	sub swap_out {
1547	my ($self) = @_;	2095	my ($self) = @_;
1548		2096
1549	# save first because save cedes	2097	# save first because save cedes
1550	$self->save;	2098	$self->save;
1551		2099
1552	my $lock = cf::lock_acquire "map_data:" . $self->path;	2100	my $lock = cf::lock_acquire "map_data:$self->{path}";
1553		2101
1554	return if $self->players;	2102	return if $self->players;
1555	return if $self->in_memory != cf::MAP_IN_MEMORY;	2103	return if $self->in_memory != cf::MAP_IN_MEMORY;
1556	return if $self->{deny_save};	2104	return if $self->{deny_save};
1557		2105
		2106	$self->in_memory (cf::MAP_SWAPPED);
		2107
		2108	$self->deactivate;
		2109	$_->clear_links_to ($self) for values %cf::MAP;
1558	$self->clear;	2110	$self->clear;
1559	$self->in_memory (cf::MAP_SWAPPED);
1560	}	2111	}
1561		2112
1562	sub reset_at {	2113	sub reset_at {
1563	my ($self) = @_;	2114	my ($self) = @_;
1564		2115
1565	# TODO: safety, remove and allow resettable per-player maps	2116	# TODO: safety, remove and allow resettable per-player maps
1566	return 1e99 if $self->{path}{user_rel};
1567	return 1e99 if $self->{deny_reset};	2117	return 1e99 if $self->{deny_reset};
1568		2118
1569	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2119	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1570	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2120	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1571		2121
…		…
1576	my ($self) = @_;	2126	my ($self) = @_;
1577		2127
1578	$self->reset_at <= $cf::RUNTIME	2128	$self->reset_at <= $cf::RUNTIME
1579	}	2129	}
1580		2130
1581	sub unlink_save {
1582	my ($self) = @_;
1583
1584	utf8::encode (my $save = $self->{path}->save_path);
1585	aioreq_pri 3; IO::AIO::aio_unlink $save;
1586	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1587	}
1588
1589	sub rename {
1590	my ($self, $new_path) = @_;
1591
1592	$self->unlink_save;
1593
1594	delete $cf::MAP{$self->path};
1595	$self->{path} = new cf::path $new_path;
1596	$self->path ($self->{path}->as_string);
1597	$cf::MAP{$self->path} = $self;
1598
1599	$self->save;
1600	}
1601
1602	sub reset {	2131	sub reset {
1603	my ($self) = @_;	2132	my ($self) = @_;
1604		2133
1605	my $lock = cf::lock_acquire "map_data:" . $self->path;	2134	my $lock = cf::lock_acquire "map_data:$self->{path}";
1606		2135
1607	return if $self->players;	2136	return if $self->players;
1608	return if $self->{path}{user_rel};#d#
1609		2137
1610	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	}
1611		2149
1612	delete $cf::MAP{$self->path};	2150	delete $cf::MAP{$self->path};
1613		2151
		2152	$self->deactivate;
1614	$_->clear_links_to ($self) for values %cf::MAP;	2153	$_->clear_links_to ($self) for values %cf::MAP;
		2154	$self->clear;
1615		2155
1616	$self->unlink_save;	2156	$self->unlink_save;
1617	$self->destroy;	2157	$self->destroy;
1618	}	2158	}
1619		2159
1620	my $nuke_counter = "aaaa";	2160	my $nuke_counter = "aaaa";
1621		2161
1622	sub nuke {	2162	sub nuke {
1623	my ($self) = @_;	2163	my ($self) = @_;
1624		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};
1625	$self->{deny_save} = 1;	2174	$self->{deny_save} = 1;
1626	$self->reset_timeout (1);	2175	$self->reset_timeout (1);
1627	$self->rename ("{nuke}/" . ($nuke_counter++));	2176	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2177
		2178	$cf::MAP{$self->path} = $self;
		2179	}
		2180
1628	$self->reset; # polite request, might not happen	2181	$self->reset; # polite request, might not happen
1629	}	2182	}
1630		2183
1631	sub customise_for {	2184	=item $maps = cf::map::tmp_maps
1632	my ($map, $ob) = @_;
1633		2185
1634	if ($map->per_player) {	2186	Returns an arrayref with all map paths of currently instantiated and saved
1635	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2187	maps. May block.
		2188
		2189	=cut
		2190
		2191	sub tmp_maps() {
1636	}	2192	[
		2193	map {
		2194	utf8::decode $_;
		2195	/\.map$/
		2196	? normalise $_
		2197	: ()
		2198	} @{ aio_readdir $TMPDIR or [] }
		2199	]
		2200	}
1637		2201
1638	$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	]
1639	}	2218	}
1640		2219
1641	=item cf::map::unique_maps	2220	=item cf::map::unique_maps
1642		2221
1643	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
1644	instantiated unique items. May block.	2223	instantiated unique items. May block.
1645		2224
1646	=cut	2225	=cut
1647		2226
1648	sub unique_maps() {	2227	sub unique_maps() {
1649	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2228	[
1650	or return;	2229	map {
1651
1652	my @paths;
1653
1654	for (@$files) {
1655	utf8::decode $_;	2230	utf8::decode $_;
1656	next if /\.pst$/;	2231	/\.map$/
1657	next unless /^$PATH_SEP/o;	2232	? normalise $_
1658		2233	: ()
1659	push @paths, new cf::path $_;	2234	} @{ aio_readdir $UNIQUEDIR or [] }
1660	}	2235	]
1661
1662	\@paths
1663	}	2236	}
1664		2237
1665	package cf;	2238	package cf;
1666		2239
1667	=back	2240	=back
…		…
1685	map { $_, inv_recursive_ $_->inv } @_	2258	map { $_, inv_recursive_ $_->inv } @_
1686	}	2259	}
1687		2260
1688	sub inv_recursive {	2261	sub inv_recursive {
1689	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	}
1690	}	2294	}
1691		2295
1692	package cf;	2296	package cf;
1693		2297
1694	=back	2298	=back
…		…
1713		2317
1714	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2318	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1715		2319
1716	if ($self->{record_replies}) {	2320	if ($self->{record_replies}) {
1717	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2321	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2322
1718	} 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 {
1719	$msg = $npc->name . " says: $msg" if $npc;	2331	$msg = $npc->name . " says: $msg" if $npc;
1720	$self->message ($msg, $flags);	2332	$self->message ($msg, $flags);
		2333	}
1721	}	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 (@_);
1722	}	2345	}
1723		2346
1724	=item $player_object->may ("access")	2347	=item $player_object->may ("access")
1725		2348
1726	Returns wether the given player is authorized to access resource "access"	2349	Returns wether the given player is authorized to access resource "access"
…		…
1739		2362
1740	=item $player_object->enter_link	2363	=item $player_object->enter_link
1741		2364
1742	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}>).
1743		2366
1744	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
1745	I<MUST> call C<leave_link> as soon as possible, though.	2368	I<MUST> call C<leave_link> as soon as possible, though.
1746		2369
		2370	Will never block.
		2371
1747	=item $player_object->leave_link ($map, $x, $y)	2372	=item $player_object->leave_link ($map, $x, $y)
1748		2373
1749	Moves the player out of the specila link map onto the given map. If the	2374	Moves the player out of the special C<{link}> map onto the specified
1750	map is not valid (or omitted), the player will be moved back to the	2375	map. If the map is not valid (or omitted), the player will be moved back
1751	location he/she was before the call to C<enter_link>, or, if that fails,	2376	to the location he/she was before the call to C<enter_link>, or, if that
1752	to the emergency map position.	2377	fails, to the emergency map position.
1753		2378
1754	Might block.	2379	Might block.
1755		2380
1756	=cut	2381	=cut
		2382
		2383	sub link_map {
		2384	unless ($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	$LINK_MAP
		2391	}
1757		2392
1758	sub cf::object::player::enter_link {	2393	sub cf::object::player::enter_link {
1759	my ($self) = @_;	2394	my ($self) = @_;
1760		2395
1761	$self->deactivate_recursive;	2396	$self->deactivate_recursive;
1762		2397
1763	return if $self->map == $LINK_MAP;	2398	return if UNIVERSAL::isa $self->map, "ext::map_link";
1764		2399
1765	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2400	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1766	if $self->map;	2401	if $self->map && $self->map->{path} ne "{link}";
1767		2402
1768	$self->enter_map ($LINK_MAP, 20, 20);	2403	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1769	}	2404	}
1770		2405
1771	sub cf::object::player::leave_link {	2406	sub cf::object::player::leave_link {
1772	my ($self, $map, $x, $y) = @_;	2407	my ($self, $map, $x, $y) = @_;
		2408
		2409	return unless $self->contr->active;
1773		2410
1774	my $link_pos = delete $self->{_link_pos};	2411	my $link_pos = delete $self->{_link_pos};
1775		2412
1776	unless ($map) {	2413	unless ($map) {
1777	# restore original map position	2414	# restore original map position
…		…
1791	# use -1 or undef as default coordinates, not 0, 0	2428	# use -1 or undef as default coordinates, not 0, 0
1792	($x, $y) = ($map->enter_x, $map->enter_y)	2429	($x, $y) = ($map->enter_x, $map->enter_y)
1793	if $x <=0 && $y <= 0;	2430	if $x <=0 && $y <= 0;
1794		2431
1795	$map->load;	2432	$map->load;
1796	$map->load_diag;	2433	$map->load_neighbours;
1797		2434
1798	return unless $self->contr->active;	2435	return unless $self->contr->active;
1799	$self->activate_recursive;	2436	$self->activate_recursive;
		2437
		2438	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1800	$self->enter_map ($map, $x, $y);	2439	$self->enter_map ($map, $x, $y);
1801	}	2440	}
1802		2441
1803	cf::player->attach (	2442	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1804	on_logout => sub {
1805	my ($pl) = @_;
1806		2443
1807	# abort map switching before logout	2444	Moves the player to the given map-path and coordinates by first freezing
1808	if ($pl->ob->{_link_pos}) {	2445	her, loading and preparing them map, calling the provided $check callback
1809	cf::sync_job {	2446	that has to return the map if sucecssful, and then unfreezes the player on
1810	$pl->ob->leave_link	2447	the new (success) or old (failed) map position. In either case, $done will
1811	};	2448	be called at the end of this process.
1812	}
1813	},
1814	on_login => sub {
1815	my ($pl) = @_;
1816		2449
1817	# try to abort aborted map switching on player login :)
1818	# should happen only on crashes
1819	if ($pl->ob->{_link_pos}) {
1820	$pl->ob->enter_link;
1821	(async {
1822	# we need this sleep as the login has a concurrent enter_exit running
1823	# and this sleep increases chances of the player not ending up in scorn
1824	$pl->ob->reply (undef,
1825	"There was an internal problem at your last logout, "
1826	. "the server will try to bring you to your intended destination in a second.",
1827	cf::NDI_RED);
1828	Coro::Timer::sleep 1;
1829	$pl->ob->leave_link;
1830	})->prio (2);
1831	}
1832	},
1833	);
1834
1835	=item $player_object->goto ($path, $x, $y)
1836
1837	=cut	2450	=cut
		2451
		2452	our $GOTOGEN;
1838		2453
1839	sub cf::object::player::goto {	2454	sub cf::object::player::goto {
1840	my ($self, $path, $x, $y) = @_;	2455	my ($self, $path, $x, $y, $check, $done) = @_;
1841		2456
1842	$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;
1843		2459
1844	$self->enter_link;	2460	$self->enter_link;
1845		2461
1846	(async {	2462	(async {
1847	my $map = cf::map::find $path->as_string;	2463	# *tag paths override both path and x|y
		2464	if ($path =~ /^\*(.*)$/) {
		2465	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2466	my $ob = $obs[rand @obs];
		2467
		2468	# see if we actually can go there
		2469	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2470	$ob = $obs[rand @obs];
		2471	} else {
		2472	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2473	}
		2474	# else put us there anyways for now #d#
		2475
		2476	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2477	} else {
		2478	($path, $x, $y) = (undef, undef, undef);
		2479	}
		2480	}
		2481
		2482	my $map = eval {
		2483	my $map = defined $path ? cf::map::find $path : undef;
		2484
		2485	if ($map) {
1848	$map = $map->customise_for ($self) if $map;	2486	$map = $map->customise_for ($self);
1849		2487	$map = $check->($map) if $check && $map;
1850	# warn "entering ", $map->path, " at ($x, $y)\n"	2488	} else {
1851	# if $map;
1852
1853	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2489	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2490	}
1854		2491
		2492	$map
		2493	};
		2494
		2495	if ($@) {
		2496	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2497	LOG llevError | logBacktrace, Carp::longmess $@;
		2498	}
		2499
		2500	if ($gen == $self->{_goto_generation}) {
		2501	delete $self->{_goto_generation};
1855	$self->leave_link ($map, $x, $y);	2502	$self->leave_link ($map, $x, $y);
		2503	}
		2504
		2505	$done->() if $done;
1856	})->prio (1);	2506	})->prio (1);
1857	}	2507	}
1858		2508
1859	=item $player_object->enter_exit ($exit_object)	2509	=item $player_object->enter_exit ($exit_object)
1860		2510
…		…
1862		2512
1863	sub parse_random_map_params {	2513	sub parse_random_map_params {
1864	my ($spec) = @_;	2514	my ($spec) = @_;
1865		2515
1866	my $rmp = { # defaults	2516	my $rmp = { # defaults
1867	xsize => 10,	2517	xsize => (cf::rndm 15, 40),
1868	ysize => 10,	2518	ysize => (cf::rndm 15, 40),
		2519	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2520	#layout => string,
1869	};	2521	};
1870		2522
1871	for (split /\n/, $spec) {	2523	for (split /\n/, $spec) {
1872	my ($k, $v) = split /\s+/, $_, 2;	2524	my ($k, $v) = split /\s+/, $_, 2;
1873		2525
…		…
1877	$rmp	2529	$rmp
1878	}	2530	}
1879		2531
1880	sub prepare_random_map {	2532	sub prepare_random_map {
1881	my ($exit) = @_;	2533	my ($exit) = @_;
		2534
		2535	my $guard = cf::lock_acquire "exit_prepare:$exit";
1882		2536
1883	# all this does is basically replace the /! path by	2537	# all this does is basically replace the /! path by
1884	# a new random map path (?random/...) with a seed	2538	# a new random map path (?random/...) with a seed
1885	# that depends on the exit object	2539	# that depends on the exit object
1886		2540
1887	my $rmp = parse_random_map_params $exit->msg;	2541	my $rmp = parse_random_map_params $exit->msg;
1888		2542
1889	if ($exit->map) {	2543	if ($exit->map) {
1890	$rmp->{region} = $exit->map->region_name;	2544	$rmp->{region} = $exit->region->name;
1891	$rmp->{origin_map} = $exit->map->path;	2545	$rmp->{origin_map} = $exit->map->path;
1892	$rmp->{origin_x} = $exit->x;	2546	$rmp->{origin_x} = $exit->x;
1893	$rmp->{origin_y} = $exit->y;	2547	$rmp->{origin_y} = $exit->y;
1894	}	2548	}
1895		2549
1896	$rmp->{random_seed} ||= $exit->random_seed;	2550	$rmp->{random_seed} ||= $exit->random_seed;
1897		2551
1898	my $data = cf::to_json $rmp;	2552	my $data = cf::to_json $rmp;
1899	my $md5 = Digest::MD5::md5_hex $data;	2553	my $md5 = Digest::MD5::md5_hex $data;
		2554	my $meta = "$RANDOMDIR/$md5.meta";
1900		2555
1901	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2556	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1902	aio_write $fh, 0, (length $data), $data, 0;	2557	aio_write $fh, 0, (length $data), $data, 0;
		2558	undef $fh;
		2559	aio_rename "$meta~", $meta;
1903		2560
1904	$exit->slaying ("?random/$md5");	2561	$exit->slaying ("?random/$md5");
1905	$exit->msg (undef);	2562	$exit->msg (undef);
1906	}	2563	}
1907	}	2564	}
…		…
1909	sub cf::object::player::enter_exit {	2566	sub cf::object::player::enter_exit {
1910	my ($self, $exit) = @_;	2567	my ($self, $exit) = @_;
1911		2568
1912	return unless $self->type == cf::PLAYER;	2569	return unless $self->type == cf::PLAYER;
1913		2570
		2571	if ($exit->slaying eq "/!") {
		2572	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2573	# the problem is that $exit might not survive long enough
		2574	# so it needs to be done right now, right here
		2575	cf::sync_job { prepare_random_map $exit };
		2576	}
		2577
		2578	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2579	my $hp = $exit->stats->hp;
		2580	my $sp = $exit->stats->sp;
		2581
1914	$self->enter_link;	2582	$self->enter_link;
		2583
		2584	# if exit is damned, update players death & WoR home-position
		2585	$self->contr->savebed ($slaying, $hp, $sp)
		2586	if $exit->flag (FLAG_DAMNED);
1915		2587
1916	(async {	2588	(async {
1917	$self->deactivate_recursive; # just to be sure	2589	$self->deactivate_recursive; # just to be sure
1918	unless (eval {	2590	unless (eval {
1919	prepare_random_map $exit	2591	$self->goto ($slaying, $hp, $sp);
1920	if $exit->slaying eq "/!";
1921
1922	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1923	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1924		2592
1925	1;	2593	1;
1926	}) {	2594	}) {
1927	$self->message ("Something went wrong deep within the crossfire server. "	2595	$self->message ("Something went wrong deep within the crossfire server. "
1928	. "I'll try to bring you back to the map you were before. "	2596	. "I'll try to bring you back to the map you were before. "
1929	. "Please report this to the dungeon master!",	2597	. "Please report this to the dungeon master!",
1930	cf::NDI_UNIQUE | cf::NDI_RED);	2598	cf::NDI_UNIQUE | cf::NDI_RED);
1931		2599
1932	warn "ERROR in enter_exit: $@";	2600	warn "ERROR in enter_exit: $@";
1933	$self->leave_link;	2601	$self->leave_link;
1934	}	2602	}
1935	})->prio (1);	2603	})->prio (1);
…		…
1948		2616
1949	sub cf::client::send_drawinfo {	2617	sub cf::client::send_drawinfo {
1950	my ($self, $text, $flags) = @_;	2618	my ($self, $text, $flags) = @_;
1951		2619
1952	utf8::encode $text;	2620	utf8::encode $text;
1953	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2621	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1954	}	2622	}
1955		2623
		2624	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2625
		2626	Send a drawinfo or msg packet to the client, formatting the msg for the
		2627	client if neccessary. C<$type> should be a string identifying the type of
		2628	the message, with C<log> being the default. If C<$color> is negative, suppress
		2629	the message unless the client supports the msg packet.
		2630
		2631	=cut
		2632
		2633	our %CHANNEL = (
		2634	"c/identify" => {
		2635	id => "identify",
		2636	title => "Identify",
		2637	reply => undef,
		2638	tooltip => "Items recently identified",
		2639	},
		2640	"c/examine" => {
		2641	id => "examine",
		2642	title => "Examine",
		2643	reply => undef,
		2644	tooltip => "Signs and other items you examined",
		2645	},
		2646	);
		2647
		2648	sub cf::client::send_msg {
		2649	my ($self, $channel, $msg, $color, @extra) = @_;
		2650
		2651	$msg = $self->pl->expand_cfpod ($msg);
		2652
		2653	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2654
		2655	# check predefined channels, for the benefit of C
		2656	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2657
		2658	if (ref $channel) {
		2659	# send meta info to client, if not yet sent
		2660	unless (exists $self->{channel}{$channel->{id}}) {
		2661	$self->{channel}{$channel->{id}} = $channel;
		2662	$self->ext_msg (channel_info => $channel)
		2663	if $self->can_msg;
		2664	}
		2665
		2666	$channel = $channel->{id};
		2667	}
		2668
		2669	return unless @extra || length $msg;
		2670
		2671	if ($self->can_msg) {
		2672	# default colour, mask it out
		2673	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2674	if $color & cf::NDI_DEF;
		2675
		2676	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2677	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2678	} else {
		2679	if ($color >= 0) {
		2680	# replace some tags by gcfclient-compatible ones
		2681	for ($msg) {
		2682	1 while
		2683	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2684	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2685	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2686	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2687	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2688	}
		2689
		2690	$color &= cf::NDI_COLOR_MASK;
		2691
		2692	utf8::encode $msg;
		2693
		2694	if (0 && $msg =~ /\[/) {
		2695	# COMMAND/INFO
		2696	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2697	} else {
		2698	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2699	$self->send_packet ("drawinfo $color $msg")
		2700	}
		2701	}
		2702	}
		2703	}
		2704
		2705	=item $client->ext_msg ($type, @msg)
		2706
		2707	Sends an ext event to the client.
		2708
		2709	=cut
		2710
		2711	sub cf::client::ext_msg($$@) {
		2712	my ($self, $type, @msg) = @_;
		2713
		2714	if ($self->extcmd == 2) {
		2715	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2716	} elsif ($self->extcmd == 1) { # TODO: remove
		2717	push @msg, msgtype => "event_$type";
		2718	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2719	}
		2720	}
		2721
		2722	=item $client->ext_reply ($msgid, @msg)
		2723
		2724	Sends an ext reply to the client.
		2725
		2726	=cut
		2727
		2728	sub cf::client::ext_reply($$@) {
		2729	my ($self, $id, @msg) = @_;
		2730
		2731	if ($self->extcmd == 2) {
		2732	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2733	} elsif ($self->extcmd == 1) {
		2734	#TODO: version 1, remove
		2735	unshift @msg, msgtype => "reply", msgid => $id;
		2736	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2737	}
		2738	}
1956		2739
1957	=item $success = $client->query ($flags, "text", \&cb)	2740	=item $success = $client->query ($flags, "text", \&cb)
1958		2741
1959	Queues a query to the client, calling the given callback with	2742	Queues a query to the client, calling the given callback with
1960	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2743	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1961	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2744	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1962		2745
1963	Queries can fail, so check the return code. Or don't, as queries will become	2746	Queries can fail, so check the return code. Or don't, as queries will
1964	reliable at some point in the future.	2747	become reliable at some point in the future.
1965		2748
1966	=cut	2749	=cut
1967		2750
1968	sub cf::client::query {	2751	sub cf::client::query {
1969	my ($self, $flags, $text, $cb) = @_;	2752	my ($self, $flags, $text, $cb) = @_;
…		…
1977	utf8::encode $text;	2760	utf8::encode $text;
1978	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2761	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1979		2762
1980	$self->send_packet ($self->{query_queue}[0][0])	2763	$self->send_packet ($self->{query_queue}[0][0])
1981	if @{ $self->{query_queue} } == 1;	2764	if @{ $self->{query_queue} } == 1;
		2765
		2766	1
1982	}	2767	}
1983		2768
1984	cf::client->attach (	2769	cf::client->attach (
		2770	on_connect => sub {
		2771	my ($ns) = @_;
		2772
		2773	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2774	},
1985	on_reply => sub {	2775	on_reply => sub {
1986	my ($ns, $msg) = @_;	2776	my ($ns, $msg) = @_;
1987		2777
1988	# this weird shuffling is so that direct followup queries	2778	# this weird shuffling is so that direct followup queries
1989	# get handled first	2779	# get handled first
1990	my $queue = delete $ns->{query_queue}	2780	my $queue = delete $ns->{query_queue}
1991	or return; # be conservative, not sure how that can happen, but we saw a crash here	2781	or return; # be conservative, not sure how that can happen, but we saw a crash here
1992		2782
1993	(shift @$queue)->[1]->($msg);	2783	(shift @$queue)->[1]->($msg);
		2784	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1994		2785
1995	push @{ $ns->{query_queue} }, @$queue;	2786	push @{ $ns->{query_queue} }, @$queue;
1996		2787
1997	if (@{ $ns->{query_queue} } == @$queue) {	2788	if (@{ $ns->{query_queue} } == @$queue) {
1998	if (@$queue) {	2789	if (@$queue) {
…		…
2000	} else {	2791	} else {
2001	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2792	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2002	}	2793	}
2003	}	2794	}
2004	},	2795	},
		2796	on_exticmd => sub {
		2797	my ($ns, $buf) = @_;
		2798
		2799	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2800
		2801	if (ref $msg) {
		2802	my ($type, $reply, @payload) =
		2803	"ARRAY" eq ref $msg
		2804	? @$msg
		2805	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2806
		2807	my @reply;
		2808
		2809	if (my $cb = $EXTICMD{$type}) {
		2810	@reply = $cb->($ns, @payload);
		2811	}
		2812
		2813	$ns->ext_reply ($reply, @reply)
		2814	if $reply;
		2815
		2816	} else {
		2817	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2818	}
		2819
		2820	cf::override;
		2821	},
2005	);	2822	);
2006		2823
2007	=item $client->async (\&cb)	2824	=item $client->async (\&cb)
2008		2825
2009	Create a new coroutine, running the specified callback. The coroutine will	2826	Create a new coroutine, running the specified callback. The coroutine will
…		…
2050	our $safe = new Safe "safe";	2867	our $safe = new Safe "safe";
2051	our $safe_hole = new Safe::Hole;	2868	our $safe_hole = new Safe::Hole;
2052		2869
2053	$SIG{FPE} = 'IGNORE';	2870	$SIG{FPE} = 'IGNORE';
2054		2871
2055	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2872	$safe->permit_only (Opcode::opset qw(
		2873	:base_core :base_mem :base_orig :base_math
		2874	grepstart grepwhile mapstart mapwhile
		2875	sort time
		2876	));
2056		2877
2057	# here we export the classes and methods available to script code	2878	# here we export the classes and methods available to script code
2058		2879
2059	=pod	2880	=pod
2060		2881
2061	The following fucntions and emthods are available within a safe environment:	2882	The following functions and methods are available within a safe environment:
2062		2883
2063	cf::object contr pay_amount pay_player map	2884	cf::object
		2885	contr pay_amount pay_player map x y force_find force_add
		2886	insert remove name archname title slaying race decrease_ob_nr
		2887
2064	cf::object::player player	2888	cf::object::player
2065	cf::player peaceful	2889	player
2066	cf::map trigger	2890
		2891	cf::player
		2892	peaceful
		2893
		2894	cf::map
		2895	trigger
2067		2896
2068	=cut	2897	=cut
2069		2898
2070	for (	2899	for (
2071	["cf::object" => qw(contr pay_amount pay_player map)],	2900	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2901	insert remove inv name archname title slaying race
		2902	decrease_ob_nr)],
2072	["cf::object::player" => qw(player)],	2903	["cf::object::player" => qw(player)],
2073	["cf::player" => qw(peaceful)],	2904	["cf::player" => qw(peaceful)],
2074	["cf::map" => qw(trigger)],	2905	["cf::map" => qw(trigger)],
2075	) {	2906	) {
2076	no strict 'refs';	2907	no strict 'refs';
…		…
2147	=back	2978	=back
2148		2979
2149	=cut	2980	=cut
2150		2981
2151	#############################################################################	2982	#############################################################################
		2983	# the server's init and main functions
2152		2984
2153	=head2 EXTENSION DATABASE SUPPORT	2985	sub load_facedata($) {
		2986	my ($path) = @_;
2154		2987
2155	Crossfire maintains a very simple database for extension use. It can	2988	# HACK to clear player env face cache, we need some signal framework
2156	currently store anything that can be serialised using Storable, which	2989	# for this (global event?)
2157	excludes objects.	2990	%ext::player_env::MUSIC_FACE_CACHE = ();
2158		2991
2159	The parameter C<$family> should best start with the name of the extension	2992	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2160	using it, it should be unique.
2161		2993
2162	=over 4	2994	warn "loading facedata from $path\n";
2163		2995
2164	=item $hashref = cf::db_get $family	2996	my $facedata;
		2997	0 < aio_load $path, $facedata
		2998	or die "$path: $!";
2165		2999
2166	Return a hashref for use by the extension C<$family>, which can be	3000	$facedata = Coro::Storable::thaw $facedata;
2167	modified. After modifications, you have to call C<cf::db_dirty> or
2168	C<cf::db_sync>.
2169		3001
2170	=item $value = cf::db_get $family => $key	3002	$facedata->{version} == 2
		3003	or cf::cleanup "$path: version mismatch, cannot proceed.";
2171		3004
2172	Returns a single value from the database	3005	# patch in the exptable
2173		3006	$facedata->{resource}{"res/exp_table"} = {
2174	=item cf::db_put $family => $hashref	3007	type => FT_RSRC,
2175		3008	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2176	Stores the given family hashref into the database. Updates are delayed, if
2177	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2178
2179	=item cf::db_put $family => $key => $value
2180
2181	Stores the given C<$value> in the family hash. Updates are delayed, if you
2182	want the data to be synced to disk immediately, use C<cf::db_sync>.
2183
2184	=item cf::db_dirty
2185
2186	Marks the database as dirty, to be updated at a later time.
2187
2188	=item cf::db_sync
2189
2190	Immediately write the database to disk I<if it is dirty>.
2191
2192	=cut
2193
2194	our $DB;
2195
2196	{
2197	my $path = cf::localdir . "/database.pst";
2198
2199	sub db_load() {
2200	$DB = stat $path ? Storable::retrieve $path : { };
2201	}
2202
2203	my $pid;
2204
2205	sub db_save() {
2206	waitpid $pid, 0 if $pid;
2207	if (0 == ($pid = fork)) {
2208	$DB->{_meta}{version} = 1;
2209	Storable::nstore $DB, "$path~";
2210	rename "$path~", $path;
2211	cf::_exit 0 if defined $pid;
2212	}
2213	}
2214
2215	my $dirty;
2216
2217	sub db_sync() {
2218	db_save if $dirty;
2219	undef $dirty;
2220	}
2221
2222	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2223	db_sync;
2224	});	3009	};
		3010	cf::cede_to_tick;
2225		3011
2226	sub db_dirty() {
2227	$dirty = 1;
2228	$idle->start;
2229	}	3012	{
		3013	my $faces = $facedata->{faceinfo};
2230		3014
2231	sub db_get($;$) {	3015	while (my ($face, $info) = each %$faces) {
2232	@_ >= 2	3016	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2233	? $DB->{$_[0]}{$_[1]}	3017	cf::face::set_visibility $idx, $info->{visibility};
2234	: ($DB->{$_[0]} ||= { })	3018	cf::face::set_magicmap $idx, $info->{magicmap};
2235	}	3019	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3020	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2236		3021
2237	sub db_put($$;$) {	3022	cf::cede_to_tick;
2238	if (@_ >= 3) {
2239	$DB->{$_[0]}{$_[1]} = $_[2];
2240	} else {
2241	$DB->{$_[0]} = $_[1];
2242	}
2243	db_dirty;
2244	}
2245
2246	cf::global->attach (
2247	prio => 10000,
2248	on_cleanup => sub {
2249	db_sync;
2250	},	3023	}
2251	);
2252	}
2253		3024
2254	#############################################################################	3025	while (my ($face, $info) = each %$faces) {
2255	# the server's main()	3026	next unless $info->{smooth};
		3027	my $idx = cf::face::find $face
		3028	or next;
		3029	if (my $smooth = cf::face::find $info->{smooth}) {
		3030	cf::face::set_smooth $idx, $smooth;
		3031	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3032	} else {
		3033	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3034	}
2256		3035
2257	sub cfg_load {	3036	cf::cede_to_tick;
		3037	}
		3038	}
		3039
		3040	{
		3041	my $anims = $facedata->{animinfo};
		3042
		3043	while (my ($anim, $info) = each %$anims) {
		3044	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3045	cf::cede_to_tick;
		3046	}
		3047
		3048	cf::anim::invalidate_all; # d'oh
		3049	}
		3050
		3051	{
		3052	# TODO: for gcfclient pleasure, we should give resources
		3053	# that gcfclient doesn't grok a >10000 face index.
		3054	my $res = $facedata->{resource};
		3055
		3056	my $soundconf = delete $res->{"res/sound.conf"};
		3057
		3058	while (my ($name, $info) = each %$res) {
		3059	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3060	my $data;
		3061
		3062	if ($info->{type} & 1) {
		3063	# prepend meta info
		3064
		3065	my $meta = $enc->encode ({
		3066	name => $name,
		3067	%{ $info->{meta} || {} },
		3068	});
		3069
		3070	$data = pack "(w/a*)*", $meta, $info->{data};
		3071	} else {
		3072	$data = $info->{data};
		3073	}
		3074
		3075	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3076	cf::face::set_type $idx, $info->{type};
		3077
		3078	cf::cede_to_tick;
		3079	}
		3080
		3081	if ($soundconf) {
		3082	$soundconf = $enc->decode (delete $soundconf->{data});
		3083
		3084	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3085	my $sound = $soundconf->{compat}[$_]
		3086	or next;
		3087
		3088	my $face = cf::face::find "sound/$sound->[1]";
		3089	cf::sound::set $sound->[0] => $face;
		3090	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3091	}
		3092
		3093	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3094	my $face = cf::face::find "sound/$v";
		3095	cf::sound::set $k => $face;
		3096	}
		3097	}
		3098	}
		3099
		3100	1
		3101	}
		3102
		3103	register_exticmd fx_want => sub {
		3104	my ($ns, $want) = @_;
		3105
		3106	while (my ($k, $v) = each %$want) {
		3107	$ns->fx_want ($k, $v);
		3108	}
		3109	};
		3110
		3111	sub reload_regions {
		3112	# HACK to clear player env face cache, we need some signal framework
		3113	# for this (global event?)
		3114	%ext::player_env::MUSIC_FACE_CACHE = ();
		3115
		3116	load_resource_file "$MAPDIR/regions"
		3117	or die "unable to load regions file\n";
		3118
		3119	for (cf::region::list) {
		3120	$_->{match} = qr/$_->{match}/
		3121	if exists $_->{match};
		3122	}
		3123	}
		3124
		3125	sub reload_facedata {
		3126	load_facedata "$DATADIR/facedata"
		3127	or die "unable to load facedata\n";
		3128	}
		3129
		3130	sub reload_archetypes {
		3131	load_resource_file "$DATADIR/archetypes"
		3132	or die "unable to load archetypes\n";
		3133	#d# NEED to laod twice to resolve forward references
		3134	# this really needs to be done in an extra post-pass
		3135	# (which needs to be synchronous, so solve it differently)
		3136	load_resource_file "$DATADIR/archetypes"
		3137	or die "unable to load archetypes\n";
		3138	}
		3139
		3140	sub reload_treasures {
		3141	load_resource_file "$DATADIR/treasures"
		3142	or die "unable to load treasurelists\n";
		3143	}
		3144
		3145	sub reload_resources {
		3146	warn "reloading resource files...\n";
		3147
		3148	reload_regions;
		3149	reload_facedata;
		3150	#reload_archetypes;#d#
		3151	reload_archetypes;
		3152	reload_treasures;
		3153
		3154	warn "finished reloading resource files\n";
		3155	}
		3156
		3157	sub init {
		3158	reload_resources;
		3159	}
		3160
		3161	sub reload_config {
2258	open my $fh, "<:utf8", cf::confdir . "/config"	3162	open my $fh, "<:utf8", "$CONFDIR/config"
2259	or return;	3163	or return;
2260		3164
2261	local $/;	3165	local $/;
2262	*CFG = YAML::Syck::Load <$fh>;	3166	*CFG = YAML::Syck::Load <$fh>;
2263		3167
…		…
2277		3181
2278	sub main {	3182	sub main {
2279	# we must not ever block the main coroutine	3183	# we must not ever block the main coroutine
2280	local $Coro::idle = sub {	3184	local $Coro::idle = sub {
2281	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3185	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3186	(async {
2282	async { Event::one_event };	3187	Event::one_event;
		3188	})->prio (Coro::PRIO_MAX);
2283	};	3189	};
2284		3190
2285	cfg_load;	3191	reload_config;
2286	db_load;	3192	db_init;
2287	load_extensions;	3193	load_extensions;
		3194
		3195	$TICK_WATCHER->start;
2288	Event::loop;	3196	Event::loop;
2289	}	3197	}
2290		3198
2291	#############################################################################	3199	#############################################################################
2292	# initialisation and cleanup	3200	# initialisation and cleanup
2293		3201
2294	# install some emergency cleanup handlers	3202	# install some emergency cleanup handlers
2295	BEGIN {	3203	BEGIN {
2296	for my $signal (qw(INT HUP TERM)) {	3204	for my $signal (qw(INT HUP TERM)) {
2297	Event->signal (	3205	Event->signal (
		3206	reentrant => 0,
2298	data => WF_AUTOCANCEL,	3207	data => WF_AUTOCANCEL,
2299	signal => $signal,	3208	signal => $signal,
		3209	prio => 0,
2300	cb => sub {	3210	cb => sub {
2301	cf::cleanup "SIG$signal";	3211	cf::cleanup "SIG$signal";
2302	},	3212	},
2303	);	3213	);
2304	}	3214	}
2305	}	3215	}
2306		3216
		3217	sub write_runtime {
		3218	my $runtime = "$LOCALDIR/runtime";
		3219
		3220	# first touch the runtime file to show we are still running:
		3221	# the fsync below can take a very very long time.
		3222
		3223	IO::AIO::aio_utime $runtime, undef, undef;
		3224
		3225	my $guard = cf::lock_acquire "write_runtime";
		3226
		3227	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3228	or return;
		3229
		3230	my $value = $cf::RUNTIME + 90 + 10;
		3231	# 10 is the runtime save interval, for a monotonic clock
		3232	# 60 allows for the watchdog to kill the server.
		3233
		3234	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3235	and return;
		3236
		3237	# always fsync - this file is important
		3238	aio_fsync $fh
		3239	and return;
		3240
		3241	# touch it again to show we are up-to-date
		3242	aio_utime $fh, undef, undef;
		3243
		3244	close $fh
		3245	or return;
		3246
		3247	aio_rename "$runtime~", $runtime
		3248	and return;
		3249
		3250	warn "runtime file written.\n";
		3251
		3252	1
		3253	}
		3254
2307	sub emergency_save() {	3255	sub emergency_save() {
2308	my $freeze_guard = cf::freeze_mainloop;	3256	my $freeze_guard = cf::freeze_mainloop;
2309		3257
2310	warn "enter emergency perl save\n";	3258	warn "enter emergency perl save\n";
2311		3259
2312	cf::sync_job {	3260	cf::sync_job {
2313	# use a peculiar iteration method to avoid tripping on perl	3261	# use a peculiar iteration method to avoid tripping on perl
2314	# refcount bugs in for. also avoids problems with players	3262	# refcount bugs in for. also avoids problems with players
2315	# and maps saved/Destroyed asynchronously.	3263	# and maps saved/destroyed asynchronously.
2316	warn "begin emergency player save\n";	3264	warn "begin emergency player save\n";
2317	for my $login (keys %cf::PLAYER) {	3265	for my $login (keys %cf::PLAYER) {
2318	my $pl = $cf::PLAYER{$login} or next;	3266	my $pl = $cf::PLAYER{$login} or next;
2319	$pl->valid or next;	3267	$pl->valid or next;
2320	$pl->save;	3268	$pl->save;
…		…
2326	my $map = $cf::MAP{$path} or next;	3274	my $map = $cf::MAP{$path} or next;
2327	$map->valid or next;	3275	$map->valid or next;
2328	$map->save;	3276	$map->save;
2329	}	3277	}
2330	warn "end emergency map save\n";	3278	warn "end emergency map save\n";
		3279
		3280	warn "begin emergency database checkpoint\n";
		3281	BDB::db_env_txn_checkpoint $DB_ENV;
		3282	warn "end emergency database checkpoint\n";
2331	};	3283	};
2332		3284
2333	warn "leave emergency perl save\n";	3285	warn "leave emergency perl save\n";
2334	}	3286	}
2335		3287
		3288	sub post_cleanup {
		3289	my ($make_core) = @_;
		3290
		3291	warn Carp::longmess "post_cleanup backtrace"
		3292	if $make_core;
		3293	}
		3294
2336	sub reload() {	3295	sub do_reload_perl() {
2337	# can/must only be called in main	3296	# can/must only be called in main
2338	if ($Coro::current != $Coro::main) {	3297	if ($Coro::current != $Coro::main) {
2339	warn "can only reload from main coroutine\n";	3298	warn "can only reload from main coroutine";
2340	return;	3299	return;
2341	}	3300	}
2342		3301
2343	warn "reloading...";	3302	warn "reloading...";
2344		3303
2345	my $guard = freeze_mainloop;	3304	warn "entering sync_job";
		3305
		3306	cf::sync_job {
		3307	cf::write_runtime; # external watchdog should not bark
2346	cf::emergency_save;	3308	cf::emergency_save;
		3309	cf::write_runtime; # external watchdog should not bark
2347		3310
2348	eval {	3311	warn "syncing database to disk";
		3312	BDB::db_env_txn_checkpoint $DB_ENV;
		3313
2349	# if anything goes wrong in here, we should simply crash as we already saved	3314	# if anything goes wrong in here, we should simply crash as we already saved
2350		3315
2351	# cancel all watchers	3316	warn "cancelling all WF_AUTOCANCEL watchers";
2352	for (Event::all_watchers) {	3317	for (Event::all_watchers) {
2353	$_->cancel if $_->data & WF_AUTOCANCEL;	3318	$_->cancel if $_->data & WF_AUTOCANCEL;
2354	}	3319	}
2355		3320
		3321	warn "flushing outstanding aio requests";
		3322	for (;;) {
		3323	BDB::flush;
		3324	IO::AIO::flush;
		3325	Coro::cede;
		3326	last unless IO::AIO::nreqs || BDB::nreqs;
		3327	warn "iterate...";
		3328	}
		3329
		3330	++$RELOAD;
		3331
2356	# cancel all extension coros	3332	warn "cancelling all extension coros";
2357	$_->cancel for values %EXT_CORO;	3333	$_->cancel for values %EXT_CORO;
2358	%EXT_CORO = ();	3334	%EXT_CORO = ();
2359		3335
2360	# unload all extensions	3336	warn "removing commands";
2361	for (@exts) {	3337	%COMMAND = ();
		3338
		3339	warn "removing ext/exti commands";
		3340	%EXTCMD = ();
		3341	%EXTICMD = ();
		3342
		3343	warn "unloading/nuking all extensions";
		3344	for my $pkg (@EXTS) {
2362	warn "unloading <$_>";	3345	warn "... unloading $pkg";
2363	unload_extension $_;	3346
		3347	if (my $cb = $pkg->can ("unload")) {
		3348	eval {
		3349	$cb->($pkg);
		3350	1
		3351	} or warn "$pkg unloaded, but with errors: $@";
2364	}	3352	}
2365		3353
		3354	warn "... nuking $pkg";
		3355	Symbol::delete_package $pkg;
		3356	}
		3357
2366	# unload all modules loaded from $LIBDIR	3358	warn "unloading all perl modules loaded from $LIBDIR";
2367	while (my ($k, $v) = each %INC) {	3359	while (my ($k, $v) = each %INC) {
2368	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3360	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2369		3361
2370	warn "removing <$k>";	3362	warn "... unloading $k";
2371	delete $INC{$k};	3363	delete $INC{$k};
2372		3364
2373	$k =~ s/\.pm$//;	3365	$k =~ s/\.pm$//;
2374	$k =~ s/\//::/g;	3366	$k =~ s/\//::/g;
2375		3367
…		…
2378	}	3370	}
2379		3371
2380	Symbol::delete_package $k;	3372	Symbol::delete_package $k;
2381	}	3373	}
2382		3374
2383	# sync database to disk
2384	cf::db_sync;
2385	IO::AIO::flush;
2386
2387	# get rid of safe::, as good as possible	3375	warn "getting rid of safe::, as good as possible";
2388	Symbol::delete_package "safe::$_"	3376	Symbol::delete_package "safe::$_"
2389	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3377	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2390		3378
2391	# remove register_script_function callbacks
2392	# TODO
2393
2394	# unload cf.pm "a bit"	3379	warn "unloading cf.pm \"a bit\"";
2395	delete $INC{"cf.pm"};	3380	delete $INC{"cf.pm"};
		3381	delete $INC{"cf/pod.pm"};
2396		3382
2397	# don't, removes xs symbols, too,	3383	# don't, removes xs symbols, too,
2398	# and global variables created in xs	3384	# and global variables created in xs
2399	#Symbol::delete_package __PACKAGE__;	3385	#Symbol::delete_package __PACKAGE__;
2400		3386
2401	# reload cf.pm	3387	warn "unload completed, starting to reload now";
		3388
2402	warn "reloading cf.pm";	3389	warn "reloading cf.pm";
2403	require cf;	3390	require cf;
2404	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3391	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2405		3392
2406	# load config and database again	3393	warn "loading config and database again";
2407	cf::cfg_load;	3394	cf::reload_config;
2408	cf::db_load;
2409		3395
2410	# load extensions
2411	warn "load extensions";	3396	warn "loading extensions";
2412	cf::load_extensions;	3397	cf::load_extensions;
2413		3398
2414	# reattach attachments to objects	3399	warn "reattaching attachments to objects/players";
2415	warn "reattach";	3400	_global_reattach; # objects, sockets
2416	_global_reattach;	3401	warn "reattaching attachments to maps";
2417	reattach $_ for values %MAP;	3402	reattach $_ for values %MAP;
2418	};	3403	warn "reattaching attachments to players";
		3404	reattach $_ for values %PLAYER;
2419		3405
2420	if ($@) {	3406	warn "leaving sync_job";
		3407
		3408	1
		3409	} or do {
2421	warn $@;	3410	warn $@;
2422	warn "error while reloading, exiting.";	3411	warn "error while reloading, exiting.";
2423	exit 1;	3412	exit 1;
2424	}	3413	};
2425		3414
2426	warn "reloaded successfully";	3415	warn "reloaded";
2427	};	3416	};
2428		3417
2429	#############################################################################	3418	our $RELOAD_WATCHER; # used only during reload
2430		3419
2431	unless ($LINK_MAP) {	3420	sub reload_perl() {
2432	$LINK_MAP = cf::map::new;	3421	# doing reload synchronously and two reloads happen back-to-back,
		3422	# coro crashes during coro_state_free->destroy here.
2433		3423
2434	$LINK_MAP->width (41);	3424	$RELOAD_WATCHER ||= Event->timer (
2435	$LINK_MAP->height (41);	3425	reentrant => 0,
2436	$LINK_MAP->alloc;
2437	$LINK_MAP->path ("{link}");
2438	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2439	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2440
2441	# dirty hack because... archetypes are not yet loaded
2442	Event->timer (
2443	after => 10,	3426	after => 0,
		3427	data => WF_AUTOCANCEL,
2444	cb => sub {	3428	cb => sub {
2445	$_[0]->w->cancel;	3429	do_reload_perl;
2446		3430	undef $RELOAD_WATCHER;
2447	# provide some exits "home"
2448	my $exit = cf::object::new "exit";
2449
2450	$exit->slaying ($EMERGENCY_POSITION->[0]);
2451	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2452	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2453
2454	$LINK_MAP->insert ($exit->clone, 19, 19);
2455	$LINK_MAP->insert ($exit->clone, 19, 20);
2456	$LINK_MAP->insert ($exit->clone, 19, 21);
2457	$LINK_MAP->insert ($exit->clone, 20, 19);
2458	$LINK_MAP->insert ($exit->clone, 20, 21);
2459	$LINK_MAP->insert ($exit->clone, 21, 19);
2460	$LINK_MAP->insert ($exit->clone, 21, 20);
2461	$LINK_MAP->insert ($exit->clone, 21, 21);
2462
2463	$exit->destroy;
2464	});	3431	},
2465		3432	);
2466	$LINK_MAP->{deny_save} = 1;
2467	$LINK_MAP->{deny_reset} = 1;
2468
2469	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2470	}	3433	}
2471
2472	register "<global>", __PACKAGE__;
2473		3434
2474	register_command "reload" => sub {	3435	register_command "reload" => sub {
2475	my ($who, $arg) = @_;	3436	my ($who, $arg) = @_;
2476		3437
2477	if ($who->flag (FLAG_WIZ)) {	3438	if ($who->flag (FLAG_WIZ)) {
2478	$who->message ("start of reload.");
2479	reload;
2480	$who->message ("end of reload.");	3439	$who->message ("reloading server.");
		3440	async { reload_perl };
2481	}	3441	}
2482	};	3442	};
2483		3443
2484	unshift @INC, $LIBDIR;	3444	unshift @INC, $LIBDIR;
		3445
		3446	my $bug_warning = 0;
		3447
		3448	our @WAIT_FOR_TICK;
		3449	our @WAIT_FOR_TICK_BEGIN;
		3450
		3451	sub wait_for_tick {
		3452	return unless $TICK_WATCHER->is_active;
		3453	return if $Coro::current == $Coro::main;
		3454
		3455	my $signal = new Coro::Signal;
		3456	push @WAIT_FOR_TICK, $signal;
		3457	$signal->wait;
		3458	}
		3459
		3460	sub wait_for_tick_begin {
		3461	return unless $TICK_WATCHER->is_active;
		3462	return if $Coro::current == $Coro::main;
		3463
		3464	my $signal = new Coro::Signal;
		3465	push @WAIT_FOR_TICK_BEGIN, $signal;
		3466	$signal->wait;
		3467	}
2485		3468
2486	$TICK_WATCHER = Event->timer (	3469	$TICK_WATCHER = Event->timer (
2487	reentrant => 0,	3470	reentrant => 0,
		3471	parked => 1,
2488	prio => 0,	3472	prio => 0,
2489	at => $NEXT_TICK || $TICK,	3473	at => $NEXT_TICK || $TICK,
2490	data => WF_AUTOCANCEL,	3474	data => WF_AUTOCANCEL,
2491	cb => sub {	3475	cb => sub {
		3476	if ($Coro::current != $Coro::main) {
		3477	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3478	unless ++$bug_warning > 10;
		3479	return;
		3480	}
		3481
		3482	$NOW = $tick_start = Event::time;
		3483
2492	cf::server_tick; # one server iteration	3484	cf::server_tick; # one server iteration
		3485
2493	$RUNTIME += $TICK;	3486	$RUNTIME += $TICK;
2494	$NEXT_TICK += $TICK;	3487	$NEXT_TICK += $TICK;
2495		3488
2496	$WAIT_FOR_TICK->broadcast;	3489	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2497	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3490	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3491	Coro::async_pool {
		3492	write_runtime
		3493	or warn "ERROR: unable to write runtime file: $!";
		3494	};
		3495	}
		3496
		3497	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3498	$sig->send;
		3499	}
		3500	while (my $sig = shift @WAIT_FOR_TICK) {
		3501	$sig->send;
		3502	}
		3503
		3504	$NOW = Event::time;
2498		3505
2499	# if we are delayed by four ticks or more, skip them all	3506	# if we are delayed by four ticks or more, skip them all
2500	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3507	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2501		3508
2502	$TICK_WATCHER->at ($NEXT_TICK);	3509	$TICK_WATCHER->at ($NEXT_TICK);
2503	$TICK_WATCHER->start;	3510	$TICK_WATCHER->start;
		3511
		3512	$LOAD = ($NOW - $tick_start) / $TICK;
		3513	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3514
		3515	_post_tick;
2504	},	3516	},
2505	);	3517	);
2506		3518
		3519	{
		3520	BDB::min_parallel 8;
2507	IO::AIO::max_poll_time $TICK * 0.2;	3521	BDB::max_poll_time $TICK * 0.1;
2508		3522	$BDB_POLL_WATCHER = Event->io (
2509	Event->io (	3523	reentrant => 0,
2510	fd => IO::AIO::poll_fileno,	3524	fd => BDB::poll_fileno,
2511	poll => 'r',	3525	poll => 'r',
2512	prio => 5,	3526	prio => 0,
2513	data => WF_AUTOCANCEL,
2514	cb => \&IO::AIO::poll_cb,
2515	);
2516
2517	Event->timer (
2518	data => WF_AUTOCANCEL,	3527	data => WF_AUTOCANCEL,
		3528	cb => \&BDB::poll_cb,
		3529	);
		3530
		3531	BDB::set_sync_prepare {
		3532	my $status;
		3533	my $current = $Coro::current;
		3534	(
		3535	sub {
		3536	$status = $!;
		3537	$current->ready; undef $current;
		3538	},
		3539	sub {
		3540	Coro::schedule while defined $current;
		3541	$! = $status;
		3542	},
		3543	)
		3544	};
		3545
		3546	unless ($DB_ENV) {
		3547	$DB_ENV = BDB::db_env_create;
		3548
		3549	cf::sync_job {
		3550	eval {
		3551	BDB::db_env_open
		3552	$DB_ENV,
		3553	$BDBDIR,
		3554	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3555	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3556	0666;
		3557
		3558	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3559
		3560	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3561	| BDB::LOG_AUTOREMOVE, 1);
		3562	$DB_ENV->set_lk_detect;
		3563	};
		3564
		3565	cf::cleanup "db_env_open(db): $@" if $@;
		3566	};
		3567	}
		3568
		3569	$BDB_CHECKPOINT_WATCHER = Event->timer (
2519	after => 0,	3570	after => 11,
2520	interval => 10,	3571	interval => 60,
		3572	hard => 1,
		3573	prio => 0,
		3574	data => WF_AUTOCANCEL,
2521	cb => sub {	3575	cb => sub {
2522	(Coro::unblock_sub {	3576	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
2523	write_runtime	3577	},
2524	or warn "ERROR: unable to write runtime file: $!";	3578	);
		3579	$BDB_TRICKLE_WATCHER = Event->timer (
		3580	after => 5,
		3581	interval => 10,
		3582	hard => 1,
		3583	prio => 0,
		3584	data => WF_AUTOCANCEL,
		3585	cb => sub {
		3586	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3587	},
		3588	);
		3589	}
		3590
		3591	{
		3592	IO::AIO::min_parallel 8;
		3593
		3594	undef $Coro::AIO::WATCHER;
		3595	IO::AIO::max_poll_time $TICK * 0.1;
		3596	$AIO_POLL_WATCHER = Event->io (
		3597	reentrant => 0,
		3598	data => WF_AUTOCANCEL,
		3599	fd => IO::AIO::poll_fileno,
		3600	poll => 'r',
		3601	prio => 6,
		3602	cb => \&IO::AIO::poll_cb,
		3603	);
		3604	}
		3605
		3606	my $_log_backtrace;
		3607
		3608	sub _log_backtrace {
		3609	my ($msg, @addr) = @_;
		3610
		3611	$msg =~ s/\n//;
		3612
		3613	# limit the # of concurrent backtraces
		3614	if ($_log_backtrace < 2) {
		3615	++$_log_backtrace;
		3616	async {
		3617	my @bt = fork_call {
		3618	@addr = map { sprintf "%x", $_ } @addr;
		3619	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3620	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3621	or die "addr2line: $!";
		3622
		3623	my @funcs;
		3624	my @res = <$fh>;
		3625	chomp for @res;
		3626	while (@res) {
		3627	my ($func, $line) = splice @res, 0, 2, ();
		3628	push @funcs, "[$func] $line";
		3629	}
		3630
		3631	@funcs
		3632	};
		3633
		3634	LOG llevInfo, "[ABT] $msg\n";
		3635	LOG llevInfo, "[ABT] $_\n" for @bt;
		3636	--$_log_backtrace;
2525	})->();	3637	};
		3638	} else {
		3639	LOG llevInfo, "[ABT] $msg\n";
		3640	LOG llevInfo, "[ABT] [suppressed]\n";
2526	},	3641	}
2527	);	3642	}
		3643
		3644	# load additional modules
		3645	use cf::pod;
2528		3646
2529	END { cf::emergency_save }	3647	END { cf::emergency_save }
2530		3648
2531	1	3649	1
2532		3650

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