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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.152 by root, Mon Jan 8 22:32:10 2007 UTC vs.
Revision 1.362 by root, Mon Sep 10 12:44:06 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 ();
		28	use Data::Dumper;
20	use Digest::MD5;	29	use Digest::MD5;
21	use Fcntl;	30	use Fcntl;
		31	use YAML::Syck ();
22	use IO::AIO 2.32 ();	32	use IO::AIO 2.32 ();
23	use YAML::Syck ();
24	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
25		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
26	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
27		44
28	# 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?
29	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
30		47
31	$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
32		49
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		51
35	our %COMMAND = ();	52	our %COMMAND = ();
36	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
		54
		55	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
		58	our %EXT_CORO = (); # coroutines bound to extensions
		59	our %EXT_MAP = (); # pluggable maps
38		60
		61	our $RELOAD; # number of reloads so far
39	our @EVENT;	62	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		63
42	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(!)
43	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	80	our $NEXT_TICK;
45	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 $DB_ENV;
46		86
47	our %CFG;	87	our %CFG;
48		88
49	our $UPTIME; $UPTIME ||= time;	89	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	90	our $RUNTIME;
51		91
52	our %PLAYER; # all users	92	our (%PLAYER, %PLAYER_LOADING); # all users
53	our %MAP; # all maps	93	our (%MAP, %MAP_LOADING ); # all maps
54	our $LINK_MAP; # the special {link} map	94	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	95
56	our %EXT_CORO; # coroutines bound to extensions	96	# used to convert map paths into valid unix filenames by replacing / by ∕
		97	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		98
		99	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		100	our $LOADAVG; # same thing, but with alpha-smoothing
		101	our $tick_start; # for load detecting purposes
57		102
58	binmode STDOUT;	103	binmode STDOUT;
59	binmode STDERR;	104	binmode STDERR;
60		105
61	# read virtual server time, if available	106	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	107	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	108	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	109	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	110	$RUNTIME = <$fh> + 0.;
66	}	111	}
67		112
68	mkdir cf::localdir;	113	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	114	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		115
74	# a special map that is always available
75	our $LINK_MAP;
76	our $EMERGENCY_POSITION;	116	our $EMERGENCY_POSITION;
		117
		118	sub cf::map::normalise;
77		119
78	#############################################################################	120	#############################################################################
79		121
80	=head2 GLOBAL VARIABLES	122	=head2 GLOBAL VARIABLES
81		123
…		…
88	=item $cf::RUNTIME	130	=item $cf::RUNTIME
89		131
90	The time this server has run, starts at 0 and is increased by $cf::TICK on	132	The time this server has run, starts at 0 and is increased by $cf::TICK on
91	every server tick.	133	every server tick.
92		134
93	=item $cf::LIBDIR	135	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		136	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		137	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
94		138
95	The perl library directory, where extensions and cf-specific modules can	139	Various directories - "/etc", read-only install directory, perl-library
96	be found. It will be added to C<@INC> automatically.	140	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		141	unique-items directory, player file directory, random maps directory and
		142	database environment.
97		143
98	=item $cf::NOW	144	=item $cf::NOW
99		145
100	The time of the last (current) server tick.	146	The time of the last (current) server tick.
101		147
102	=item $cf::TICK	148	=item $cf::TICK
103		149
104	The interval between server ticks, in seconds.	150	The interval between server ticks, in seconds.
		151
		152	=item $cf::LOADAVG
		153
		154	The current CPU load on the server (alpha-smoothed), as a value between 0
		155	(none) and 1 (overloaded), indicating how much time is spent on processing
		156	objects per tick. Healthy values are < 0.5.
		157
		158	=item $cf::LOAD
		159
		160	The raw value load value from the last tick.
105		161
106	=item %cf::CFG	162	=item %cf::CFG
107		163
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	164	Configuration for the server, loaded from C</etc/crossfire/config>, or
109	from wherever your confdir points to.	165	from wherever your confdir points to.
		166
		167	=item cf::wait_for_tick, cf::wait_for_tick_begin
		168
		169	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		170	returns directly I<after> the tick processing (and consequently, can only wake one process
		171	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		172
		173	=item @cf::INVOKE_RESULTS
		174
		175	This array contains the results of the last C<invoke ()> call. When
		176	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		177	that call.
110		178
111	=back	179	=back
112		180
113	=cut	181	=cut
114		182
115	BEGIN {	183	BEGIN {
116	*CORE::GLOBAL::warn = sub {	184	*CORE::GLOBAL::warn = sub {
117	my $msg = join "", @_;	185	my $msg = join "", @_;
118	utf8::encode $msg;
119		186
120	$msg .= "\n"	187	$msg .= "\n"
121	unless $msg =~ /\n$/;	188	unless $msg =~ /\n$/;
		189
		190	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
122		191
123	LOG llevError, $msg;	192	LOG llevError, $msg;
124	};	193	};
125	}	194	}
126		195
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	196	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	197	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	198	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	199	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
131	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	200	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		201	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
132	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	202	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
133		203
134	# we bless all objects into (empty) derived classes to force a method lookup	204	# we bless all objects into (empty) derived classes to force a method lookup
135	# within the Safe compartment.	205	# within the Safe compartment.
136	for my $pkg (qw(	206	for my $pkg (qw(
137	cf::global cf::attachable	207	cf::global cf::attachable
…		…
146		216
147	$Event::DIED = sub {	217	$Event::DIED = sub {
148	warn "error in event callback: @_";	218	warn "error in event callback: @_";
149	};	219	};
150		220
151	my %ext_pkg;	221	#############################################################################
152	my @exts;
153	my @hook;
154		222
155	=head2 UTILITY FUNCTIONS	223	=head2 UTILITY FUNCTIONS
156		224
157	=over 4	225	=over 4
158		226
159	=cut	227	=item dumpval $ref
160		228
161	use JSON::Syck (); # TODO# replace by JSON::PC once working	229	=cut
		230
		231	sub dumpval {
		232	eval {
		233	local $SIG{__DIE__};
		234	my $d;
		235	if (1) {
		236	$d = new Data::Dumper([$_[0]], ["*var"]);
		237	$d->Terse(1);
		238	$d->Indent(2);
		239	$d->Quotekeys(0);
		240	$d->Useqq(1);
		241	#$d->Bless(...);
		242	$d->Seen($_[1]) if @_ > 1;
		243	$d = $d->Dump();
		244	}
		245	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		246	$d
		247	} || "[unable to dump $_[0]: '$@']";
		248	}
162		249
163	=item $ref = cf::from_json $json	250	=item $ref = cf::from_json $json
164		251
165	Converts a JSON string into the corresponding perl data structure.	252	Converts a JSON string into the corresponding perl data structure.
166		253
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	254	=item $json = cf::to_json $ref
175		255
176	Converts a perl data structure into its JSON representation.	256	Converts a perl data structure into its JSON representation.
177		257
178	=cut	258	=cut
179		259
180	sub to_json($) {	260	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	261
182	JSON::Syck::Dump $_[0]	262	sub to_json ($) { $json_coder->encode ($_[0]) }
183	}	263	sub from_json ($) { $json_coder->decode ($_[0]) }
184		264
185	=item cf::lock_wait $string	265	=item cf::lock_wait $string
186		266
187	Wait until the given lock is available. See cf::lock_acquire.	267	Wait until the given lock is available. See cf::lock_acquire.
188		268
…		…
191	Wait until the given lock is available and then acquires it and returns	271	Wait until the given lock is available and then acquires it and returns
192	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	272	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
193	for example when the coroutine gets canceled), the lock is automatically	273	for example when the coroutine gets canceled), the lock is automatically
194	returned.	274	returned.
195		275
		276	Locks are *not* recursive, locking from the same coro twice results in a
		277	deadlocked coro.
		278
196	Lock names should begin with a unique identifier (for example, cf::map::find	279	Lock names should begin with a unique identifier (for example, cf::map::find
197	uses map_find and cf::map::load uses map_load).	280	uses map_find and cf::map::load uses map_load).
198		281
		282	=item $locked = cf::lock_active $string
		283
		284	Return true if the lock is currently active, i.e. somebody has locked it.
		285
199	=cut	286	=cut
200		287
201	our %LOCK;	288	our %LOCK;
		289	our %LOCKER;#d#
202		290
203	sub lock_wait($) {	291	sub lock_wait($) {
204	my ($key) = @_;	292	my ($key) = @_;
		293
		294	if ($LOCKER{$key} == $Coro::current) {#d#
		295	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		296	return;#d#
		297	}#d#
205		298
206	# wait for lock, if any	299	# wait for lock, if any
207	while ($LOCK{$key}) {	300	while ($LOCK{$key}) {
208	push @{ $LOCK{$key} }, $Coro::current;	301	push @{ $LOCK{$key} }, $Coro::current;
209	Coro::schedule;	302	Coro::schedule;
…		…
215		308
216	# wait, to be sure we are not locked	309	# wait, to be sure we are not locked
217	lock_wait $key;	310	lock_wait $key;
218		311
219	$LOCK{$key} = [];	312	$LOCK{$key} = [];
		313	$LOCKER{$key} = $Coro::current;#d#
220		314
221	Coro::guard {	315	Coro::guard {
		316	delete $LOCKER{$key};#d#
222	# wake up all waiters, to be on the safe side	317	# wake up all waiters, to be on the safe side
223	$_->ready for @{ delete $LOCK{$key} };	318	$_->ready for @{ delete $LOCK{$key} };
224	}	319	}
225	}	320	}
226		321
		322	sub lock_active($) {
		323	my ($key) = @_;
		324
		325	! ! $LOCK{$key}
		326	}
		327
227	sub freeze_mainloop {	328	sub freeze_mainloop {
228	return unless $TICK_WATCHER->is_active;	329	return unless $TICK_WATCHER->is_active;
229		330
230	my $guard = Coro::guard { $TICK_WATCHER->start };	331	my $guard = Coro::guard {
		332	$TICK_WATCHER->start;
		333	};
231	$TICK_WATCHER->stop;	334	$TICK_WATCHER->stop;
232	$guard	335	$guard
		336	}
		337
		338	=item cf::get_slot $time[, $priority[, $name]]
		339
		340	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		341	This call blocks and returns only when you have at least C<$time> seconds
		342	of cpu time till the next tick. The slot is only valid till the next cede.
		343
		344	The optional C<$name> can be used to identify the job to run. It might be
		345	used for statistical purposes and should identify the same time-class.
		346
		347	Useful for short background jobs.
		348
		349	=cut
		350
		351	our @SLOT_QUEUE;
		352	our $SLOT_QUEUE;
		353
		354	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		355	$SLOT_QUEUE = Coro::async {
		356	my $signal = new Coro::Signal;
		357
		358	while () {
		359	next_job:
		360	my $avail = cf::till_tick;
		361	if ($avail > 0.01) {
		362	for (0 .. $#SLOT_QUEUE) {
		363	if ($SLOT_QUEUE[$_][0] < $avail) {
		364	my $job = splice @SLOT_QUEUE, $_, 1, ();
		365	$job->[2]->send;
		366	Coro::cede;
		367	goto next_job;
		368	}
		369	}
		370	}
		371
		372	if (@SLOT_QUEUE) {
		373	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		374	push @cf::WAIT_FOR_TICK, $signal;
		375	$signal->wait;
		376	} else {
		377	Coro::schedule;
		378	}
		379	}
		380	};
		381
		382	sub get_slot($;$$) {
		383	my ($time, $pri, $name) = @_;
		384
		385	$time = $TICK * .6 if $time > $TICK * .6;
		386	my $sig = new Coro::Signal;
		387
		388	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		389	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		390	$SLOT_QUEUE->ready;
		391	$sig->wait;
233	}	392	}
234		393
235	=item cf::async { BLOCK }	394	=item cf::async { BLOCK }
236		395
237	Currently the same as Coro::async_pool, meaning you cannot use	396	Currently the same as Coro::async_pool, meaning you cannot use
…		…
242		401
243	BEGIN { *async = \&Coro::async_pool }	402	BEGIN { *async = \&Coro::async_pool }
244		403
245	=item cf::sync_job { BLOCK }	404	=item cf::sync_job { BLOCK }
246		405
247	The design of crossfire+ requires that the main coro ($Coro::main) is	406	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
248	always able to handle events or runnable, as crossfire+ is only partly	407	is always able to handle events or runnable, as Crossfire TRT is only
249	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	408	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		409	acceptable.
250		410
251	If it must be done, put the blocking parts into C<sync_job>. This will run	411	If it must be done, put the blocking parts into C<sync_job>. This will run
252	the given BLOCK in another coroutine while waiting for the result. The	412	the given BLOCK in another coroutine while waiting for the result. The
253	server will be frozen during this time, so the block should either finish	413	server will be frozen during this time, so the block should either finish
254	fast or be very important.	414	fast or be very important.
…		…
257		417
258	sub sync_job(&) {	418	sub sync_job(&) {
259	my ($job) = @_;	419	my ($job) = @_;
260		420
261	if ($Coro::current == $Coro::main) {	421	if ($Coro::current == $Coro::main) {
		422	my $time = Event::time;
		423
262	# this is the main coro, too bad, we have to block	424	# this is the main coro, too bad, we have to block
263	# till the operation succeeds, freezing the server :/	425	# till the operation succeeds, freezing the server :/
264		426
265	# TODO: use suspend/resume instead	427	# TODO: use suspend/resume instead
266	# (but this is cancel-safe)	428	# (but this is cancel-safe)
…		…
277		439
278	while ($busy) {	440	while ($busy) {
279	Coro::cede or Event::one_event;	441	Coro::cede or Event::one_event;
280	}	442	}
281		443
		444	$time = Event::time - $time;
		445
		446	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		447	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		448
		449	$tick_start += $time; # do not account sync jobs to server load
		450
282	wantarray ? @res : $res[0]	451	wantarray ? @res : $res[0]
283	} else {	452	} else {
284	# we are in another coroutine, how wonderful, everything just works	453	# we are in another coroutine, how wonderful, everything just works
285		454
286	$job->()	455	$job->()
287	}	456	}
288	}	457	}
289		458
290	=item $coro = cf::async_ext { BLOCK }	459	=item $coro = cf::async_ext { BLOCK }
291		460
292	Like async, but this coro is automcatially being canceled when the	461	Like async, but this coro is automatically being canceled when the
293	extension calling this is being unloaded.	462	extension calling this is being unloaded.
294		463
295	=cut	464	=cut
296		465
297	sub async_ext(&) {	466	sub async_ext(&) {
…		…
305	$EXT_CORO{$coro+0} = $coro;	474	$EXT_CORO{$coro+0} = $coro;
306		475
307	$coro	476	$coro
308	}	477	}
309		478
310	sub write_runtime {	479	=item fork_call { }, $args
311	my $runtime = cf::localdir . "/runtime";
312		480
313	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	481	Executes the given code block with the given arguments in a seperate
314	or return;	482	process, returning the results. Everything must be serialisable with
		483	Coro::Storable. May, of course, block. Note that the executed sub may
		484	never block itself or use any form of Event handling.
315		485
316	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	486	=cut
317	(aio_write $fh, 0, (length $value), $value, 0) <= 0
318	and return;
319		487
320	aio_fsync $fh	488	sub fork_call(&@) {
321	and return;	489	my ($cb, @args) = @_;
322		490
323	close $fh	491	# we seemingly have to make a local copy of the whole thing,
324	or return;	492	# otherwise perl prematurely frees the stuff :/
		493	# TODO: investigate and fix (likely this will be rather laborious)
325		494
326	aio_rename "$runtime~", $runtime	495	my @res = Coro::Util::fork_eval {
327	and return;	496	reset_signals;
		497	&$cb
		498	}, @args;
328		499
		500	wantarray ? @res : $res[-1]
		501	}
		502
		503	=item $value = cf::db_get $family => $key
		504
		505	Returns a single value from the environment database.
		506
		507	=item cf::db_put $family => $key => $value
		508
		509	Stores the given C<$value> in the family. It can currently store binary
		510	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		511
		512	=cut
		513
		514	our $DB;
		515
		516	sub db_init {
		517	unless ($DB) {
		518	$DB = BDB::db_create $DB_ENV;
		519
		520	cf::sync_job {
		521	eval {
		522	$DB->set_flags (BDB::CHKSUM);
		523
		524	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		525	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		526	cf::cleanup "db_open(db): $!" if $!;
		527	};
		528	cf::cleanup "db_open(db): $@" if $@;
		529	};
329	1	530	}
		531	}
		532
		533	sub db_get($$) {
		534	my $key = "$_[0]/$_[1]";
		535
		536	cf::sync_job {
		537	BDB::db_get $DB, undef, $key, my $data;
		538
		539	$! ? ()
		540	: $data
		541	}
		542	}
		543
		544	sub db_put($$$) {
		545	BDB::dbreq_pri 4;
		546	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		547	}
		548
		549	=item cf::cache $id => [$paths...], $processversion => $process
		550
		551	Generic caching function that returns the value of the resource $id,
		552	caching and regenerating as required.
		553
		554	This function can block.
		555
		556	=cut
		557
		558	sub cache {
		559	my ($id, $src, $processversion, $process) = @_;
		560
		561	my $meta =
		562	join "\x00",
		563	$processversion,
		564	map {
		565	aio_stat $_
		566	and Carp::croak "$_: $!";
		567
		568	($_, (stat _)[7,9])
		569	} @$src;
		570
		571	my $dbmeta = db_get cache => "$id/meta";
		572	if ($dbmeta ne $meta) {
		573	# changed, we may need to process
		574
		575	my @data;
		576	my $md5;
		577
		578	for (0 .. $#$src) {
		579	0 <= aio_load $src->[$_], $data[$_]
		580	or Carp::croak "$src->[$_]: $!";
		581	}
		582
		583	# if processing is expensive, check
		584	# checksum first
		585	if (1) {
		586	$md5 =
		587	join "\x00",
		588	$processversion,
		589	map {
		590	cf::cede_to_tick;
		591	($src->[$_], Digest::MD5::md5_hex $data[$_])
		592	} 0.. $#$src;
		593
		594
		595	my $dbmd5 = db_get cache => "$id/md5";
		596	if ($dbmd5 eq $md5) {
		597	db_put cache => "$id/meta", $meta;
		598
		599	return db_get cache => "$id/data";
		600	}
		601	}
		602
		603	my $t1 = Time::HiRes::time;
		604	my $data = $process->(\@data);
		605	my $t2 = Time::HiRes::time;
		606
		607	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		608
		609	db_put cache => "$id/data", $data;
		610	db_put cache => "$id/md5" , $md5;
		611	db_put cache => "$id/meta", $meta;
		612
		613	return $data;
		614	}
		615
		616	db_get cache => "$id/data"
		617	}
		618
		619	=item cf::datalog type => key => value, ...
		620
		621	Log a datalog packet of the given type with the given key-value pairs.
		622
		623	=cut
		624
		625	sub datalog($@) {
		626	my ($type, %kv) = @_;
		627	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
330	}	628	}
331		629
332	=back	630	=back
333		631
334	=cut	632	=cut
335
336	#############################################################################
337
338	package cf::path;
339
340	sub new {
341	my ($class, $path, $base) = @_;
342
343	$path = $path->as_string if ref $path;
344
345	my $self = bless { }, $class;
346
347	# {... are special paths that are not touched
348	# ?xxx/... are special absolute paths
349	# ?random/... random maps
350	# /! non-realised random map exit
351	# /... normal maps
352	# ~/... per-player maps without a specific player (DO NOT USE)
353	# ~user/... per-player map of a specific user
354
355	if ($path =~ /^{/) {
356	# fine as it is
357	} elsif ($path =~ s{^\?random/}{}) {
358	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
359	$self->{random} = cf::from_json $data;
360	} else {
361	if ($path =~ s{^~([^/]+)?}{}) {
362	$self->{user_rel} = 1;
363
364	if (defined $1) {
365	$self->{user} = $1;
366	} elsif ($base =~ m{^~([^/]+)/}) {
367	$self->{user} = $1;
368	} else {
369	warn "cannot resolve user-relative path without user <$path,$base>\n";
370	}
371	} elsif ($path =~ /^\//) {
372	# already absolute
373	} else {
374	$base =~ s{[^/]+/?$}{};
375	return $class->new ("$base/$path");
376	}
377
378	for ($path) {
379	redo if s{/\.?/}{/};
380	redo if s{/[^/]+/\.\./}{/};
381	}
382	}
383
384	$self->{path} = $path;
385
386	$self
387	}
388
389	# the name / primary key / in-game path
390	sub as_string {
391	my ($self) = @_;
392
393	$self->{user_rel} ? "~$self->{user}$self->{path}"
394	: $self->{random} ? "?random/$self->{path}"
395	: $self->{path}
396	}
397
398	# the displayed name, this is a one way mapping
399	sub visible_name {
400	my ($self) = @_;
401
402	# if (my $rmp = $self->{random}) {
403	# # todo: be more intelligent about this
404	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
405	# } else {
406	$self->as_string
407	# }
408	}
409
410	# escape the /'s in the path
411	sub _escaped_path {
412	# ∕ is U+2215
413	(my $path = $_[0]{path}) =~ s/\//∕/g;
414	$path
415	}
416
417	# the original (read-only) location
418	sub load_path {
419	my ($self) = @_;
420
421	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
422	}
423
424	# the temporary/swap location
425	sub save_path {
426	my ($self) = @_;
427
428	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
429	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
430	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
431	}
432
433	# the unique path, might be eq to save_path
434	sub uniq_path {
435	my ($self) = @_;
436
437	$self->{user_rel} || $self->{random}
438	? undef
439	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
440	}
441
442	# return random map parameters, or undef
443	sub random_map_params {
444	my ($self) = @_;
445
446	$self->{random}
447	}
448
449	# this is somewhat ugly, but style maps do need special treatment
450	sub is_style_map {
451	$_[0]{path} =~ m{^/styles/}
452	}
453
454	package cf;
455		633
456	#############################################################################	634	#############################################################################
457		635
458	=head2 ATTACHABLE OBJECTS	636	=head2 ATTACHABLE OBJECTS
459		637
…		…
461	attach callbacks/event handlers (a collection of which is called an "attachment")	639	attach callbacks/event handlers (a collection of which is called an "attachment")
462	to it. All such attachable objects support the following methods.	640	to it. All such attachable objects support the following methods.
463		641
464	In the following description, CLASS can be any of C<global>, C<object>	642	In the following description, CLASS can be any of C<global>, C<object>
465	C<player>, C<client> or C<map> (i.e. the attachable objects in	643	C<player>, C<client> or C<map> (i.e. the attachable objects in
466	crossfire+).	644	Crossfire TRT).
467		645
468	=over 4	646	=over 4
469		647
470	=item $attachable->attach ($attachment, key => $value...)	648	=item $attachable->attach ($attachment, key => $value...)
471		649
…		…
585	our @CB_TYPE = (); # registry for type (cf-object class) based events	763	our @CB_TYPE = (); # registry for type (cf-object class) based events
586	our @CB_MAP = ();	764	our @CB_MAP = ();
587		765
588	my %attachment;	766	my %attachment;
589		767
		768	sub cf::attachable::thawer_merge {
		769	# simply override everything except _meta
		770	local $_[0]{_meta};
		771	%{$_[0]} = %{$_[1]};
		772	}
		773
590	sub _attach_cb($$$$) {	774	sub _attach_cb($$$$) {
591	my ($registry, $event, $prio, $cb) = @_;	775	my ($registry, $event, $prio, $cb) = @_;
592		776
593	use sort 'stable';	777	use sort 'stable';
594		778
…		…
628	$registry = $CB_TYPE[$object_type] ||= [];	812	$registry = $CB_TYPE[$object_type] ||= [];
629		813
630	} elsif ($type eq "subtype") {	814	} elsif ($type eq "subtype") {
631	defined $object_type or Carp::croak "subtype specified without type";	815	defined $object_type or Carp::croak "subtype specified without type";
632	my $object_subtype = shift @arg;	816	my $object_subtype = shift @arg;
633	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	817	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
634		818
635	} elsif ($type eq "package") {	819	} elsif ($type eq "package") {
636	my $pkg = shift @arg;	820	my $pkg = shift @arg;
637		821
638	while (my ($name, $id) = each %cb_id) {	822	while (my ($name, $id) = each %cb_id) {
…		…
667	_attach $registry, $klass, @attach;	851	_attach $registry, $klass, @attach;
668	}	852	}
669		853
670	$obj->{$name} = \%arg;	854	$obj->{$name} = \%arg;
671	} else {	855	} else {
672	warn "object uses attachment '$name' that is not available, postponing.\n";	856	warn "object uses attachment '$name' which is not available, postponing.\n";
673	}	857	}
674		858
675	$obj->{_attachment}{$name} = undef;	859	$obj->{_attachment}{$name} = undef;
676	}	860	}
677		861
…		…
679	if (ref $_[0]) {	863	if (ref $_[0]) {
680	_object_attach @_;	864	_object_attach @_;
681	} else {	865	} else {
682	_attach shift->_attach_registry, @_;	866	_attach shift->_attach_registry, @_;
683	}	867	}
		868	_recalc_want;
684	};	869	};
685		870
686	# all those should be optimised	871	# all those should be optimised
687	sub cf::attachable::detach {	872	sub cf::attachable::detach {
688	my ($obj, $name) = @_;	873	my ($obj, $name) = @_;
…		…
691	delete $obj->{_attachment}{$name};	876	delete $obj->{_attachment}{$name};
692	reattach ($obj);	877	reattach ($obj);
693	} else {	878	} else {
694	Carp::croak "cannot, currently, detach class attachments";	879	Carp::croak "cannot, currently, detach class attachments";
695	}	880	}
		881	_recalc_want;
696	};	882	};
697		883
698	sub cf::attachable::attached {	884	sub cf::attachable::attached {
699	my ($obj, $name) = @_;	885	my ($obj, $name) = @_;
700		886
…		…
715	";	901	";
716	die if $@;	902	die if $@;
717	}	903	}
718		904
719	our $override;	905	our $override;
720	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	906	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
721		907
722	sub override {	908	sub override {
723	$override = 1;	909	$override = 1;
724	@invoke_results = ();	910	@INVOKE_RESULTS = (@_);
725	}	911	}
726		912
727	sub do_invoke {	913	sub do_invoke {
728	my $event = shift;	914	my $event = shift;
729	my $callbacks = shift;	915	my $callbacks = shift;
730		916
731	@invoke_results = ();	917	@INVOKE_RESULTS = ();
732		918
733	local $override;	919	local $override;
734		920
735	for (@$callbacks) {	921	for (@$callbacks) {
736	eval { &{$_->[1]} };	922	eval { &{$_->[1]} };
…		…
753		939
754	Generate an object-specific event with the given arguments.	940	Generate an object-specific event with the given arguments.
755		941
756	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	942	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
757	removed in future versions), and there is no public API to access override	943	removed in future versions), and there is no public API to access override
758	results (if you must, access C<@cf::invoke_results> directly).	944	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
759		945
760	=back	946	=back
761		947
762	=cut	948	=cut
763		949
764	#############################################################################	950	#############################################################################
765	# object support	951	# object support
		952	#
		953
		954	sub _can_merge {
		955	my ($ob1, $ob2) = @_;
		956
		957	local $Storable::canonical = 1;
		958	my $fob1 = Storable::freeze $ob1;
		959	my $fob2 = Storable::freeze $ob2;
		960
		961	$fob1 eq $fob2
		962	}
766		963
767	sub reattach {	964	sub reattach {
768	# basically do the same as instantiate, without calling instantiate	965	# basically do the same as instantiate, without calling instantiate
769	my ($obj) = @_;	966	my ($obj) = @_;
		967
		968	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
770		969
771	my $registry = $obj->registry;	970	my $registry = $obj->registry;
772		971
773	@$registry = ();	972	@$registry = ();
774		973
…		…
813	);	1012	);
814		1013
815	sub object_freezer_save {	1014	sub object_freezer_save {
816	my ($filename, $rdata, $objs) = @_;	1015	my ($filename, $rdata, $objs) = @_;
817		1016
		1017	my $guard = cf::lock_acquire "io";
		1018
818	sync_job {	1019	sync_job {
819	if (length $$rdata) {	1020	if (length $$rdata) {
		1021	utf8::decode (my $decname = $filename);
820	warn sprintf "saving %s (%d,%d)\n",	1022	warn sprintf "saving %s (%d,%d)\n",
821	$filename, length $$rdata, scalar @$objs;	1023	$decname, length $$rdata, scalar @$objs;
822		1024
823	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1025	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
824	chmod SAVE_MODE, $fh;	1026	chmod SAVE_MODE, $fh;
825	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1027	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
826	aio_fsync $fh;	1028	aio_fsync $fh if $cf::USE_FSYNC;
827	close $fh;	1029	close $fh;
828		1030
829	if (@$objs) {	1031	if (@$objs) {
830	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1032	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
831	chmod SAVE_MODE, $fh;	1033	chmod SAVE_MODE, $fh;
832	my $data = Storable::nfreeze { version => 1, objs => $objs };	1034	my $data = Storable::nfreeze { version => 1, objs => $objs };
833	aio_write $fh, 0, (length $data), $data, 0;	1035	aio_write $fh, 0, (length $data), $data, 0;
834	aio_fsync $fh;	1036	aio_fsync $fh if $cf::USE_FSYNC;
835	close $fh;	1037	close $fh;
836	aio_rename "$filename.pst~", "$filename.pst";	1038	aio_rename "$filename.pst~", "$filename.pst";
837	}	1039	}
838	} else {	1040	} else {
839	aio_unlink "$filename.pst";	1041	aio_unlink "$filename.pst";
…		…
845	}	1047	}
846	} else {	1048	} else {
847	aio_unlink $filename;	1049	aio_unlink $filename;
848	aio_unlink "$filename.pst";	1050	aio_unlink "$filename.pst";
849	}	1051	}
850	}	1052	};
		1053
		1054	undef $guard;
851	}	1055	}
852		1056
853	sub object_freezer_as_string {	1057	sub object_freezer_as_string {
854	my ($rdata, $objs) = @_;	1058	my ($rdata, $objs) = @_;
855		1059
…		…
860		1064
861	sub object_thawer_load {	1065	sub object_thawer_load {
862	my ($filename) = @_;	1066	my ($filename) = @_;
863		1067
864	my ($data, $av);	1068	my ($data, $av);
		1069
		1070	my $guard = cf::lock_acquire "io";
865		1071
866	(aio_load $filename, $data) >= 0	1072	(aio_load $filename, $data) >= 0
867	or return;	1073	or return;
868		1074
869	unless (aio_stat "$filename.pst") {	1075	unless (aio_stat "$filename.pst") {
870	(aio_load "$filename.pst", $av) >= 0	1076	(aio_load "$filename.pst", $av) >= 0
871	or return;	1077	or return;
		1078
		1079	undef $guard;
872	$av = eval { (Storable::thaw $av)->{objs} };	1080	$av = eval { (Storable::thaw $av)->{objs} };
873	}	1081	}
874		1082
		1083	utf8::decode (my $decname = $filename);
875	warn sprintf "loading %s (%d)\n",	1084	warn sprintf "loading %s (%d,%d)\n",
876	$filename, length $data, scalar @{$av || []};#d#	1085	$decname, length $data, scalar @{$av || []};
		1086
877	return ($data, $av);	1087	($data, $av)
878	}	1088	}
		1089
		1090	=head2 COMMAND CALLBACKS
		1091
		1092	=over 4
		1093
		1094	=cut
879		1095
880	#############################################################################	1096	#############################################################################
881	# command handling &c	1097	# command handling &c
882		1098
883	=item cf::register_command $name => \&callback($ob,$args);	1099	=item cf::register_command $name => \&callback($ob,$args);
…		…
896	push @{ $COMMAND{$name} }, [$caller, $cb];	1112	push @{ $COMMAND{$name} }, [$caller, $cb];
897	}	1113	}
898		1114
899	=item cf::register_extcmd $name => \&callback($pl,$packet);	1115	=item cf::register_extcmd $name => \&callback($pl,$packet);
900		1116
901	Register a callbackf ro execution when the client sends an extcmd packet.	1117	Register a callback for execution when the client sends an (synchronous)
		1118	extcmd packet. Ext commands will be processed in the order they are
		1119	received by the server, like other user commands. The first argument is
		1120	the logged-in player. Ext commands can only be processed after a player
		1121	has logged in successfully.
902		1122
903	If the callback returns something, it is sent back as if reply was being	1123	If the callback returns something, it is sent back as if reply was being
904	called.	1124	called.
905		1125
		1126	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1127
		1128	Register a callback for execution when the client sends an (asynchronous)
		1129	exticmd packet. Exti commands are processed by the server as soon as they
		1130	are received, i.e. out of order w.r.t. other commands. The first argument
		1131	is a client socket. Exti commands can be received anytime, even before
		1132	log-in.
		1133
		1134	If the callback returns something, it is sent back as if reply was being
		1135	called.
		1136
906	=cut	1137	=cut
907		1138
908	sub register_extcmd {	1139	sub register_extcmd {
909	my ($name, $cb) = @_;	1140	my ($name, $cb) = @_;
910		1141
911	my $caller = caller;
912	#warn "registering extcmd '$name' to '$caller'";
913
914	$EXTCMD{$name} = [$cb, $caller];	1142	$EXTCMD{$name} = $cb;
		1143	}
		1144
		1145	sub register_exticmd {
		1146	my ($name, $cb) = @_;
		1147
		1148	$EXTICMD{$name} = $cb;
915	}	1149	}
916		1150
917	cf::player->attach (	1151	cf::player->attach (
918	on_command => sub {	1152	on_command => sub {
919	my ($pl, $name, $params) = @_;	1153	my ($pl, $name, $params) = @_;
…		…
928	cf::override;	1162	cf::override;
929	},	1163	},
930	on_extcmd => sub {	1164	on_extcmd => sub {
931	my ($pl, $buf) = @_;	1165	my ($pl, $buf) = @_;
932		1166
933	my $msg = eval { from_json $buf };	1167	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
934		1168
935	if (ref $msg) {	1169	if (ref $msg) {
		1170	my ($type, $reply, @payload) =
		1171	"ARRAY" eq ref $msg
		1172	? @$msg
		1173	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1174
		1175	my @reply;
		1176
936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1177	if (my $cb = $EXTCMD{$type}) {
937	if (my %reply = $cb->[0]->($pl, $msg)) {	1178	@reply = $cb->($pl, @payload);
938	$pl->ext_reply ($msg->{msgid}, %reply);
939	}
940	}	1179	}
		1180
		1181	$pl->ext_reply ($reply, @reply)
		1182	if $reply;
		1183
941	} else {	1184	} else {
942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1185	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
943	}	1186	}
944		1187
945	cf::override;	1188	cf::override;
946	},	1189	},
947	);	1190	);
948		1191
949	sub register {
950	my ($base, $pkg) = @_;
951
952	#TODO
953	}
954
955	sub load_extension {
956	my ($path) = @_;
957
958	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
959	my $base = $1;
960	my $pkg = $1;
961	$pkg =~ s/[^[:word:]]/_/g;
962	$pkg = "ext::$pkg";
963
964	warn "loading '$path' into '$pkg'\n";
965
966	open my $fh, "<:utf8", $path
967	or die "$path: $!";
968
969	my $source =
970	"package $pkg; use strict; use utf8;\n"
971	. "#line 1 \"$path\"\n{\n"
972	. (do { local $/; <$fh> })
973	. "\n};\n1";
974
975	eval $source
976	or die $@ ? "$path: $@\n"
977	: "extension disabled.\n";
978
979	push @exts, $pkg;
980	$ext_pkg{$base} = $pkg;
981
982	# no strict 'refs';
983	# @{"$pkg\::ISA"} = ext::;
984
985	register $base, $pkg;
986	}
987
988	sub unload_extension {
989	my ($pkg) = @_;
990
991	warn "removing extension $pkg\n";
992
993	# remove hooks
994	#TODO
995	# for my $idx (0 .. $#PLUGIN_EVENT) {
996	# delete $hook[$idx]{$pkg};
997	# }
998
999	# remove commands
1000	for my $name (keys %COMMAND) {
1001	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1002
1003	if (@cb) {
1004	$COMMAND{$name} = \@cb;
1005	} else {
1006	delete $COMMAND{$name};
1007	}
1008	}
1009
1010	# remove extcmds
1011	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1012	delete $EXTCMD{$name};
1013	}
1014
1015	if (my $cb = $pkg->can ("unload")) {
1016	eval {
1017	$cb->($pkg);
1018	1
1019	} or warn "$pkg unloaded, but with errors: $@";
1020	}
1021
1022	Symbol::delete_package $pkg;
1023	}
1024
1025	sub load_extensions {	1192	sub load_extensions {
		1193	cf::sync_job {
		1194	my %todo;
		1195
1026	for my $ext (<$LIBDIR/*.ext>) {	1196	for my $path (<$LIBDIR/*.ext>) {
1027	next unless -r $ext;	1197	next unless -r $path;
1028	eval {	1198
1029	load_extension $ext;	1199	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1200	my $base = $1;
		1201	my $pkg = $1;
		1202	$pkg =~ s/[^[:word:]]/_/g;
		1203	$pkg = "ext::$pkg";
		1204
		1205	open my $fh, "<:utf8", $path
		1206	or die "$path: $!";
		1207
		1208	my $source = do { local $/; <$fh> };
		1209
		1210	my %ext = (
		1211	path => $path,
		1212	base => $base,
		1213	pkg => $pkg,
		1214	);
		1215
		1216	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1217	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1218
		1219	$ext{source} =
		1220	"package $pkg; use strict; use utf8;\n"
		1221	. "#line 1 \"$path\"\n{\n"
		1222	. $source
		1223	. "\n};\n1";
		1224
		1225	$todo{$base} = \%ext;
		1226	}
		1227
		1228	my %done;
		1229	while (%todo) {
		1230	my $progress;
		1231
		1232	while (my ($k, $v) = each %todo) {
		1233	for (split /,\s*/, $v->{meta}{depends}) {
		1234	goto skip
		1235	unless exists $done{$_};
		1236	}
		1237
		1238	warn "... loading '$k' into '$v->{pkg}'\n";
		1239
		1240	unless (eval $v->{source}) {
		1241	my $msg = $@ ? "$v->{path}: $@\n"
		1242	: "$v->{base}: extension inactive.\n";
		1243
		1244	if (exists $v->{meta}{mandatory}) {
		1245	warn $msg;
		1246	warn "mandatory extension failed to load, exiting.\n";
		1247	exit 1;
		1248	}
		1249
		1250	warn $msg;
		1251	}
		1252
		1253	$done{$k} = delete $todo{$k};
		1254	push @EXTS, $v->{pkg};
		1255	$progress = 1;
1030	1	1256	}
1031	} or warn "$ext not loaded: $@";	1257
		1258	skip:
		1259	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1260	unless $progress;
		1261	}
1032	}	1262	};
1033	}	1263	}
1034		1264
1035	#############################################################################	1265	#############################################################################
1036	# load/save/clean perl data associated with a map
1037		1266
1038	*cf::mapsupport::on_clean = sub {	1267	=back
1039	my ($map) = @_;
1040
1041	my $path = $map->tmpname;
1042	defined $path or return;
1043
1044	unlink "$path.pst";
1045	};
1046
1047	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1048
1049	#############################################################################
1050	# load/save perl data associated with player->ob objects
1051
1052	sub all_objects(@) {
1053	@_, map all_objects ($_->inv), @_
1054	}
1055
1056	# TODO: compatibility cruft, remove when no longer needed
1057	cf::player->attach (
1058	on_load => sub {
1059	my ($pl, $path) = @_;
1060
1061	for my $o (all_objects $pl->ob) {
1062	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1063	$o->set_ob_key_value ("_perl_data");
1064
1065	%$o = %{ Storable::thaw pack "H*", $value };
1066	}
1067	}
1068	},
1069	);
1070
1071	#############################################################################
1072		1268
1073	=head2 CORE EXTENSIONS	1269	=head2 CORE EXTENSIONS
1074		1270
1075	Functions and methods that extend core crossfire objects.	1271	Functions and methods that extend core crossfire objects.
1076		1272
1077	=cut	1273	=cut
1078		1274
1079	package cf::player;	1275	package cf::player;
1080		1276
		1277	use Coro::AIO;
		1278
1081	=head3 cf::player	1279	=head3 cf::player
1082		1280
1083	=over 4	1281	=over 4
1084		1282
		1283	=item cf::player::num_playing
		1284
		1285	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1286
		1287	=cut
		1288
		1289	sub num_playing {
		1290	scalar grep
		1291	$_->ob->map
		1292	&& !$_->hidden
		1293	&& !$_->ob->flag (cf::FLAG_WIZ),
		1294	cf::player::list
		1295	}
		1296
1085	=item cf::player::find $login	1297	=item cf::player::find $login
1086		1298
1087	Returns the given player object, loading it if necessary (might block).	1299	Returns the given player object, loading it if necessary (might block).
1088		1300
1089	=cut	1301	=cut
1090		1302
1091	sub playerdir($) {	1303	sub playerdir($) {
1092	cf::localdir	1304	"$PLAYERDIR/"
1093	. "/"
1094	. cf::playerdir
1095	. "/"
1096	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1305	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1097	}	1306	}
1098		1307
1099	sub path($) {	1308	sub path($) {
1100	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1309	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1101		1310
1102	(playerdir $login) . "/$login.pl"	1311	(playerdir $login) . "/playerdata"
1103	}	1312	}
1104		1313
1105	sub find_active($) {	1314	sub find_active($) {
1106	$cf::PLAYER{$_[0]}	1315	$cf::PLAYER{$_[0]}
1107	and $cf::PLAYER{$_[0]}->active	1316	and $cf::PLAYER{$_[0]}->active
…		…
1110		1319
1111	sub exists($) {	1320	sub exists($) {
1112	my ($login) = @_;	1321	my ($login) = @_;
1113		1322
1114	$cf::PLAYER{$login}	1323	$cf::PLAYER{$login}
1115	or cf::sync_job { !aio_stat $login }	1324	or cf::sync_job { !aio_stat path $login }
1116	}	1325	}
1117		1326
1118	sub find($) {	1327	sub find($) {
1119	return $cf::PLAYER{$_[0]} || do {	1328	return $cf::PLAYER{$_[0]} || do {
1120	my $login = $_[0];	1329	my $login = $_[0];
1121		1330
1122	my $guard = cf::lock_acquire "user_find:$login";	1331	my $guard = cf::lock_acquire "user_find:$login";
1123		1332
1124	$cf::PLAYER{$_[0]} || do {	1333	$cf::PLAYER{$_[0]} || do {
1125	my $pl = load_pl path $login	1334	# rename old playerfiles to new ones
		1335	#TODO: remove when no longer required
		1336	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1337	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1338	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1339	aio_unlink +(playerdir $login) . "/$login.pl";
		1340
		1341	my $f = new_from_file cf::object::thawer path $login
1126	or return;	1342	or return;
		1343
		1344	$f->next;
		1345	my $pl = cf::player::load_pl $f
		1346	or return;
		1347	local $cf::PLAYER_LOADING{$login} = $pl;
		1348	$f->resolve_delayed_derefs;
1127	$cf::PLAYER{$login} = $pl	1349	$cf::PLAYER{$login} = $pl
1128	}	1350	}
1129	}	1351	}
1130	}	1352	}
1131		1353
…		…
1137	my $path = path $pl;	1359	my $path = path $pl;
1138	my $guard = cf::lock_acquire "user_save:$path";	1360	my $guard = cf::lock_acquire "user_save:$path";
1139		1361
1140	return if $pl->{deny_save};	1362	return if $pl->{deny_save};
1141		1363
1142	Coro::AIO::aio_mkdir playerdir $pl, 0770;	1364	aio_mkdir playerdir $pl, 0770;
1143	$pl->{last_save} = $cf::RUNTIME;	1365	$pl->{last_save} = $cf::RUNTIME;
1144		1366
1145	$pl->save_pl ($path);	1367	$pl->save_pl ($path);
1146	Coro::cede;	1368	cf::cede_to_tick;
1147	}	1369	}
1148		1370
1149	sub new($) {	1371	sub new($) {
1150	my ($login) = @_;	1372	my ($login) = @_;
1151		1373
…		…
1157	$cf::PLAYER{$login} = $self;	1379	$cf::PLAYER{$login} = $self;
1158		1380
1159	$self	1381	$self
1160	}	1382	}
1161		1383
		1384	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1385
		1386	=cut
		1387
		1388	sub send_msg {
		1389	my $ns = shift->ns
		1390	or return;
		1391	$ns->send_msg (@_);
		1392	}
		1393
		1394	=item $pl->quit_character
		1395
		1396	Nukes the player without looking back. If logged in, the connection will
		1397	be destroyed. May block for a long time.
		1398
		1399	=cut
		1400
1162	sub quit_character {	1401	sub quit_character {
1163	my ($pl) = @_;	1402	my ($pl) = @_;
		1403
		1404	my $name = $pl->ob->name;
1164		1405
1165	$pl->{deny_save} = 1;	1406	$pl->{deny_save} = 1;
1166	$pl->password ("*"); # this should lock out the player until we nuked the dir	1407	$pl->password ("*"); # this should lock out the player until we nuked the dir
1167		1408
1168	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1409	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1170	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1411	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1171	$pl->ns->destroy if $pl->ns;	1412	$pl->ns->destroy if $pl->ns;
1172		1413
1173	my $path = playerdir $pl;	1414	my $path = playerdir $pl;
1174	my $temp = "$path~$cf::RUNTIME~deleting~";	1415	my $temp = "$path~$cf::RUNTIME~deleting~";
1175	Coro::AIO::aio_rename $path, $temp;	1416	aio_rename $path, $temp;
1176	delete $cf::PLAYER{$pl->ob->name};	1417	delete $cf::PLAYER{$pl->ob->name};
1177	$pl->destroy;	1418	$pl->destroy;
		1419
		1420	my $prefix = qr<^~\Q$name\E/>;
		1421
		1422	# nuke player maps
		1423	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1424
1178	IO::AIO::aio_rmtree $temp;	1425	IO::AIO::aio_rmtree $temp;
1179	}	1426	}
1180		1427
		1428	=item $pl->kick
		1429
		1430	Kicks a player out of the game. This destroys the connection.
		1431
		1432	=cut
		1433
		1434	sub kick {
		1435	my ($pl, $kicker) = @_;
		1436
		1437	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1438	$pl->killer ("kicked");
		1439	$pl->ns->destroy;
		1440	}
		1441
		1442	=item cf::player::list_logins
		1443
		1444	Returns am arrayref of all valid playernames in the system, can take a
		1445	while and may block, so not sync_job-capable, ever.
		1446
		1447	=cut
		1448
		1449	sub list_logins {
		1450	my $dirs = aio_readdir $PLAYERDIR
		1451	or return [];
		1452
		1453	my @logins;
		1454
		1455	for my $login (@$dirs) {
		1456	my $path = path $login;
		1457
		1458	# a .pst is a dead give-away for a valid player
		1459	unless (-e "$path.pst") {
		1460	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1461	aio_read $fh, 0, 512, my $buf, 0 or next;
		1462	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1463	}
		1464
		1465	utf8::decode $login;
		1466	push @logins, $login;
		1467	}
		1468
		1469	\@logins
		1470	}
		1471
		1472	=item $player->maps
		1473
		1474	Returns an arrayref of map paths that are private for this
		1475	player. May block.
		1476
		1477	=cut
		1478
		1479	sub maps($) {
		1480	my ($pl) = @_;
		1481
		1482	$pl = ref $pl ? $pl->ob->name : $pl;
		1483
		1484	my $files = aio_readdir playerdir $pl
		1485	or return;
		1486
		1487	my @paths;
		1488
		1489	for (@$files) {
		1490	utf8::decode $_;
		1491	next if /\.(?:pl|pst)$/;
		1492	next unless /^$PATH_SEP/o;
		1493
		1494	push @paths, cf::map::normalise "~$pl/$_";
		1495	}
		1496
		1497	\@paths
		1498	}
		1499
		1500	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1501
		1502	Expand crossfire pod fragments into protocol xml.
		1503
		1504	=cut
		1505
		1506	sub expand_cfpod {
		1507	((my $self), (local $_)) = @_;
		1508
		1509	# escape & and <
		1510	s/&/&amp;/g;
		1511	s/(?<![BIUGHT])</&lt;/g;
		1512
		1513	# this is buggy, it needs to properly take care of nested <'s
		1514
		1515	1 while
		1516	# replace B<>, I<>, U<> etc.
		1517	s/B<([^\>]*)>/<b>$1<\/b>/
		1518	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1519	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1520	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1521	# replace G<male|female> tags
		1522	|| s{G<([^>|]*)\|([^>]*)>}{
		1523	$self->gender ? $2 : $1
		1524	}ge
		1525	# replace H<hint text>
		1526	|| s{H<([^\>]*)>}
		1527	{
		1528	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1529	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1530	"")
		1531	[$self->{hintmode}]
		1532	}ge;
		1533
		1534	# create single paragraphs (very hackish)
		1535	s/(?<=\S)\n(?=\w)/ /g;
		1536
		1537	# compress some whitespace
		1538	s/\s+\n/\n/g; # ws line-ends
		1539	s/\n\n+/\n/g; # double lines
		1540	s/^\n+//; # beginning lines
		1541	s/\n+$//; # ending lines
		1542
		1543	$_
		1544	}
		1545
		1546	sub hintmode {
		1547	$_[0]{hintmode} = $_[1] if @_ > 1;
		1548	$_[0]{hintmode}
		1549	}
		1550
1181	=item $player->ext_reply ($msgid, $msgtype, %msg)	1551	=item $player->ext_reply ($msgid, @msg)
1182		1552
1183	Sends an ext reply to the player.	1553	Sends an ext reply to the player.
1184		1554
1185	=cut	1555	=cut
1186		1556
1187	sub ext_reply($$$%) {	1557	sub ext_reply($$@) {
1188	my ($self, $id, %msg) = @_;	1558	my ($self, $id, @msg) = @_;
1189		1559
1190	$msg{msgid} = $id;	1560	$self->ns->ext_reply ($id, @msg)
1191
1192	$self->send ("ext " . cf::to_json \%msg);
1193	}	1561	}
1194		1562
1195	package cf;	1563	=item $player->ext_msg ($type, @msg)
		1564
		1565	Sends an ext event to the client.
		1566
		1567	=cut
		1568
		1569	sub ext_msg($$@) {
		1570	my ($self, $type, @msg) = @_;
		1571
		1572	$self->ns->ext_msg ($type, @msg);
		1573	}
		1574
		1575	=head3 cf::region
		1576
		1577	=over 4
		1578
		1579	=cut
		1580
		1581	package cf::region;
		1582
		1583	=item cf::region::find_by_path $path
		1584
		1585	Tries to decuce the likely region for a map knowing only its path.
		1586
		1587	=cut
		1588
		1589	sub find_by_path($) {
		1590	my ($path) = @_;
		1591
		1592	my ($match, $specificity);
		1593
		1594	for my $region (list) {
		1595	if ($region->{match} && $path =~ $region->{match}) {
		1596	($match, $specificity) = ($region, $region->specificity)
		1597	if $region->specificity > $specificity;
		1598	}
		1599	}
		1600
		1601	$match
		1602	}
1196		1603
1197	=back	1604	=back
1198
1199		1605
1200	=head3 cf::map	1606	=head3 cf::map
1201		1607
1202	=over 4	1608	=over 4
1203		1609
…		…
1206	package cf::map;	1612	package cf::map;
1207		1613
1208	use Fcntl;	1614	use Fcntl;
1209	use Coro::AIO;	1615	use Coro::AIO;
1210		1616
		1617	use overload
		1618	'""' => \&as_string,
		1619	fallback => 1;
		1620
1211	our $MAX_RESET = 3600;	1621	our $MAX_RESET = 3600;
1212	our $DEFAULT_RESET = 3000;	1622	our $DEFAULT_RESET = 3000;
1213		1623
1214	sub generate_random_map {	1624	sub generate_random_map {
1215	my ($path, $rmp) = @_;	1625	my ($self, $rmp) = @_;
1216
1217	# mit "rum" bekleckern, nicht	1626	# mit "rum" bekleckern, nicht
1218	cf::map::_create_random_map	1627	$self->_create_random_map (
1219	$path,
1220	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1628	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1221	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1629	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1222	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1630	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1223	$rmp->{exit_on_final_map},	1631	$rmp->{exit_on_final_map},
1224	$rmp->{xsize}, $rmp->{ysize},	1632	$rmp->{xsize}, $rmp->{ysize},
1225	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1633	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1226	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1634	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1227	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1635	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1228	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1636	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1229	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1637	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1230	(cf::region::find $rmp->{region})	1638	(cf::region::find $rmp->{region}), $rmp->{custom}
		1639	)
		1640	}
		1641
		1642	=item cf::map->register ($regex, $prio)
		1643
		1644	Register a handler for the map path matching the given regex at the
		1645	givne priority (higher is better, built-in handlers have priority 0, the
		1646	default).
		1647
		1648	=cut
		1649
		1650	sub register {
		1651	my (undef, $regex, $prio) = @_;
		1652	my $pkg = caller;
		1653
		1654	no strict;
		1655	push @{"$pkg\::ISA"}, __PACKAGE__;
		1656
		1657	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1658	}
		1659
		1660	# also paths starting with '/'
		1661	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1662
		1663	sub thawer_merge {
		1664	my ($self, $merge) = @_;
		1665
		1666	# we have to keep some variables in memory intact
		1667	local $self->{path};
		1668	local $self->{load_path};
		1669
		1670	$self->SUPER::thawer_merge ($merge);
		1671	}
		1672
		1673	sub normalise {
		1674	my ($path, $base) = @_;
		1675
		1676	$path = "$path"; # make sure its a string
		1677
		1678	$path =~ s/\.map$//;
		1679
		1680	# map plan:
		1681	#
		1682	# /! non-realised random map exit (special hack!)
		1683	# {... are special paths that are not being touched
		1684	# ?xxx/... are special absolute paths
		1685	# ?random/... random maps
		1686	# /... normal maps
		1687	# ~user/... per-player map of a specific user
		1688
		1689	$path =~ s/$PATH_SEP/\//go;
		1690
		1691	# treat it as relative path if it starts with
		1692	# something that looks reasonable
		1693	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1694	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1695
		1696	$base =~ s{[^/]+/?$}{};
		1697	$path = "$base/$path";
		1698	}
		1699
		1700	for ($path) {
		1701	redo if s{//}{/};
		1702	redo if s{/\.?/}{/};
		1703	redo if s{/[^/]+/\.\./}{/};
		1704	}
		1705
		1706	$path
		1707	}
		1708
		1709	sub new_from_path {
		1710	my (undef, $path, $base) = @_;
		1711
		1712	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1713
		1714	$path = normalise $path, $base;
		1715
		1716	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1717	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1718	my $self = bless cf::map::new, $pkg;
		1719	$self->{path} = $path; $self->path ($path);
		1720	$self->init; # pass $1 etc.
		1721	return $self;
		1722	}
		1723	}
		1724
		1725	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1726	()
		1727	}
		1728
		1729	sub init {
		1730	my ($self) = @_;
		1731
		1732	$self
		1733	}
		1734
		1735	sub as_string {
		1736	my ($self) = @_;
		1737
		1738	"$self->{path}"
		1739	}
		1740
		1741	# the displayed name, this is a one way mapping
		1742	sub visible_name {
		1743	&as_string
		1744	}
		1745
		1746	# the original (read-only) location
		1747	sub load_path {
		1748	my ($self) = @_;
		1749
		1750	"$MAPDIR/$self->{path}.map"
		1751	}
		1752
		1753	# the temporary/swap location
		1754	sub save_path {
		1755	my ($self) = @_;
		1756
		1757	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1758	"$TMPDIR/$path.map"
		1759	}
		1760
		1761	# the unique path, undef == no special unique path
		1762	sub uniq_path {
		1763	my ($self) = @_;
		1764
		1765	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1766	"$UNIQUEDIR/$path"
1231	}	1767	}
1232		1768
1233	# and all this just because we cannot iterate over	1769	# and all this just because we cannot iterate over
1234	# all maps in C++...	1770	# all maps in C++...
1235	sub change_all_map_light {	1771	sub change_all_map_light {
…		…
1237		1773
1238	$_->change_map_light ($change)	1774	$_->change_map_light ($change)
1239	for grep $_->outdoor, values %cf::MAP;	1775	for grep $_->outdoor, values %cf::MAP;
1240	}	1776	}
1241		1777
		1778	sub decay_objects {
		1779	my ($self) = @_;
		1780
		1781	return if $self->{deny_reset};
		1782
		1783	$self->do_decay_objects;
		1784	}
		1785
		1786	sub unlink_save {
		1787	my ($self) = @_;
		1788
		1789	utf8::encode (my $save = $self->save_path);
		1790	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1791	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1792	}
		1793
1242	sub try_load_header($) {	1794	sub load_header_from($) {
1243	my ($path) = @_;	1795	my ($self, $path) = @_;
1244		1796
1245	utf8::encode $path;	1797	utf8::encode $path;
1246	aio_open $path, O_RDONLY, 0	1798	my $f = new_from_file cf::object::thawer $path
1247	or return;	1799	or return;
1248		1800
1249	my $map = cf::map::new	1801	$self->_load_header ($f)
1250	or return;	1802	or return;
1251		1803
1252	# for better error messages only, will be overwritten	1804	local $MAP_LOADING{$self->{path}} = $self;
1253	$map->path ($path);	1805	$f->resolve_delayed_derefs;
1254		1806
1255	$map->load_header ($path)	1807	$self->{load_path} = $path;
		1808
		1809	1
		1810	}
		1811
		1812	sub load_header_orig {
		1813	my ($self) = @_;
		1814
		1815	$self->load_header_from ($self->load_path)
		1816	}
		1817
		1818	sub load_header_temp {
		1819	my ($self) = @_;
		1820
		1821	$self->load_header_from ($self->save_path)
		1822	}
		1823
		1824	sub prepare_temp {
		1825	my ($self) = @_;
		1826
		1827	$self->last_access ((delete $self->{last_access})
		1828	|| $cf::RUNTIME); #d#
		1829	# safety
		1830	$self->{instantiate_time} = $cf::RUNTIME
		1831	if $self->{instantiate_time} > $cf::RUNTIME;
		1832	}
		1833
		1834	sub prepare_orig {
		1835	my ($self) = @_;
		1836
		1837	$self->{load_original} = 1;
		1838	$self->{instantiate_time} = $cf::RUNTIME;
		1839	$self->last_access ($cf::RUNTIME);
		1840	$self->instantiate;
		1841	}
		1842
		1843	sub load_header {
		1844	my ($self) = @_;
		1845
		1846	if ($self->load_header_temp) {
		1847	$self->prepare_temp;
		1848	} else {
		1849	$self->load_header_orig
1256	or return;	1850	or return;
		1851	$self->prepare_orig;
		1852	}
1257		1853
1258	$map->{load_path} = $path;	1854	$self->{deny_reset} = 1
		1855	if $self->no_reset;
1259		1856
1260	$map	1857	$self->default_region (cf::region::find_by_path $self->{path})
		1858	unless $self->default_region;
		1859
		1860	1
1261	}	1861	}
1262		1862
1263	sub find;	1863	sub find;
1264	sub find {	1864	sub find {
1265	my ($path, $origin) = @_;	1865	my ($path, $origin) = @_;
1266		1866
1267	#warn "find<$path,$origin>\n";#d#
1268
1269	$path = new cf::path $path, $origin && $origin->path;	1867	$path = normalise $path, $origin && $origin->path;
1270	my $key = $path->as_string;
1271		1868
		1869	cf::lock_wait "map_data:$path";#d#remove
1272	cf::lock_wait "map_find:$key";	1870	cf::lock_wait "map_find:$path";
1273		1871
1274	$cf::MAP{$key} || do {	1872	$cf::MAP{$path} || do {
1275	my $guard = cf::lock_acquire "map_find:$key";	1873	my $guard1 = cf::lock_acquire "map_find:$path";
		1874	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1276		1875
1277	# do it the slow way	1876	my $map = new_from_path cf::map $path
1278	my $map = try_load_header $path->save_path;
1279
1280	Coro::cede;
1281
1282	if ($map) {
1283	$map->last_access ((delete $map->{last_access})
1284	|| $cf::RUNTIME); #d#
1285	# safety
1286	$map->{instantiate_time} = $cf::RUNTIME
1287	if $map->{instantiate_time} > $cf::RUNTIME;
1288	} else {
1289	if (my $rmp = $path->random_map_params) {
1290	$map = generate_random_map $key, $rmp;
1291	} else {
1292	$map = try_load_header $path->load_path;
1293	}
1294
1295	$map or return;	1877	or return;
1296		1878
1297	$map->{load_original} = 1;
1298	$map->{instantiate_time} = $cf::RUNTIME;
1299	$map->last_access ($cf::RUNTIME);
1300	$map->instantiate;
1301
1302	# per-player maps become, after loading, normal maps
1303	$map->per_player (0) if $path->{user_rel};
1304	}
1305
1306	$map->path ($key);
1307	$map->{path} = $path;
1308	$map->{last_save} = $cf::RUNTIME;	1879	$map->{last_save} = $cf::RUNTIME;
1309		1880
1310	Coro::cede;	1881	$map->load_header
		1882	or return;
1311		1883
1312	if ($map->should_reset) {	1884	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1885	# doing this can freeze the server in a sync job, obviously
		1886	#$cf::WAIT_FOR_TICK->wait;
		1887	undef $guard1;
		1888	undef $guard2;
1313	$map->reset;	1889	$map->reset;
1314	undef $guard;
1315	$map = find $path	1890	return find $path;
1316	or return;
1317	}	1891	}
1318		1892
1319	$cf::MAP{$key} = $map	1893	$cf::MAP{$path} = $map
1320	}	1894	}
1321	}	1895	}
		1896
		1897	sub pre_load { }
		1898	sub post_load { }
1322		1899
1323	sub load {	1900	sub load {
1324	my ($self) = @_;	1901	my ($self) = @_;
1325		1902
		1903	local $self->{deny_reset} = 1; # loading can take a long time
		1904
1326	my $path = $self->{path};	1905	my $path = $self->{path};
		1906
		1907	{
1327	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1908	my $guard = cf::lock_acquire "map_data:$path";
1328		1909
		1910	return unless $self->valid;
1329	return if $self->in_memory != cf::MAP_SWAPPED;	1911	return unless $self->in_memory == cf::MAP_SWAPPED;
1330		1912
1331	$self->in_memory (cf::MAP_LOADING);	1913	$self->in_memory (cf::MAP_LOADING);
1332		1914
1333	$self->alloc;	1915	$self->alloc;
1334	$self->load_objects ($self->{load_path}, 1)	1916
		1917	$self->pre_load;
		1918	cf::cede_to_tick;
		1919
		1920	my $f = new_from_file cf::object::thawer $self->{load_path};
		1921	$f->skip_block;
		1922	$self->_load_objects ($f)
1335	or return;	1923	or return;
1336		1924
1337	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1925	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1338	if delete $self->{load_original};	1926	if delete $self->{load_original};
1339		1927
1340	if (my $uniq = $path->uniq_path) {	1928	if (my $uniq = $self->uniq_path) {
1341	utf8::encode $uniq;	1929	utf8::encode $uniq;
1342	if (aio_open $uniq, O_RDONLY, 0) {	1930	unless (aio_stat $uniq) {
		1931	if (my $f = new_from_file cf::object::thawer $uniq) {
1343	$self->clear_unique_items;	1932	$self->clear_unique_items;
1344	$self->load_objects ($uniq, 0);	1933	$self->_load_objects ($f);
		1934	$f->resolve_delayed_derefs;
		1935	}
1345	}	1936	}
1346	}	1937	}
1347		1938
1348	Coro::cede;	1939	$f->resolve_delayed_derefs;
1349		1940
		1941	cf::cede_to_tick;
1350	# now do the right thing for maps	1942	# now do the right thing for maps
1351	$self->link_multipart_objects;	1943	$self->link_multipart_objects;
1352
1353	if ($self->{path}->is_style_map) {
1354	$self->{deny_save} = 1;
1355	$self->{deny_reset} = 1;
1356	} else {
1357	$self->fix_auto_apply;
1358	$self->decay_objects;
1359	$self->update_buttons;
1360	$self->set_darkness_map;
1361	$self->difficulty ($self->estimate_difficulty)	1944	$self->difficulty ($self->estimate_difficulty)
1362	unless $self->difficulty;	1945	unless $self->difficulty;
		1946	cf::cede_to_tick;
		1947
		1948	unless ($self->{deny_activate}) {
		1949	$self->decay_objects;
		1950	$self->fix_auto_apply;
		1951	$self->update_buttons;
		1952	cf::cede_to_tick;
		1953	$self->set_darkness_map;
		1954	cf::cede_to_tick;
1363	$self->activate;	1955	$self->activate;
1364	}	1956	}
1365		1957
1366	Coro::cede;	1958	$self->{last_save} = $cf::RUNTIME;
		1959	$self->last_access ($cf::RUNTIME);
1367		1960
1368	$self->in_memory (cf::MAP_IN_MEMORY);	1961	$self->in_memory (cf::MAP_IN_MEMORY);
		1962	}
		1963
		1964	$self->post_load;
		1965	}
		1966
		1967	sub customise_for {
		1968	my ($self, $ob) = @_;
		1969
		1970	return find "~" . $ob->name . "/" . $self->{path}
		1971	if $self->per_player;
		1972
		1973	# return find "?party/" . $ob->name . "/" . $self->{path}
		1974	# if $self->per_party;
		1975
		1976	$self
		1977	}
		1978
		1979	# find and load all maps in the 3x3 area around a map
		1980	sub load_neighbours {
		1981	my ($map) = @_;
		1982
		1983	my @neigh; # diagonal neighbours
		1984
		1985	for (0 .. 3) {
		1986	my $neigh = $map->tile_path ($_)
		1987	or next;
		1988	$neigh = find $neigh, $map
		1989	or next;
		1990	$neigh->load;
		1991
		1992	push @neigh,
		1993	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		1994	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1995	}
		1996
		1997	for (grep defined $_->[0], @neigh) {
		1998	my ($path, $origin) = @$_;
		1999	my $neigh = find $path, $origin
		2000	or next;
		2001	$neigh->load;
		2002	}
1369	}	2003	}
1370		2004
1371	sub find_sync {	2005	sub find_sync {
1372	my ($path, $origin) = @_;	2006	my ($path, $origin) = @_;
1373		2007
1374	cf::sync_job { cf::map::find $path, $origin }	2008	cf::sync_job { find $path, $origin }
1375	}	2009	}
1376		2010
1377	sub do_load_sync {	2011	sub do_load_sync {
1378	my ($map) = @_;	2012	my ($map) = @_;
1379		2013
		2014	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2015	if $Coro::current == $Coro::main;
		2016
1380	cf::sync_job { $map->load };	2017	cf::sync_job { $map->load };
		2018	}
		2019
		2020	our %MAP_PREFETCH;
		2021	our $MAP_PREFETCHER = undef;
		2022
		2023	sub find_async {
		2024	my ($path, $origin, $load) = @_;
		2025
		2026	$path = normalise $path, $origin && $origin->{path};
		2027
		2028	if (my $map = $cf::MAP{$path}) {
		2029	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2030	}
		2031
		2032	$MAP_PREFETCH{$path} |= $load;
		2033
		2034	$MAP_PREFETCHER ||= cf::async {
		2035	while (%MAP_PREFETCH) {
		2036	while (my ($k, $v) = each %MAP_PREFETCH) {
		2037	if (my $map = find $k) {
		2038	$map->load if $v;
		2039	}
		2040
		2041	delete $MAP_PREFETCH{$k};
		2042	}
		2043	}
		2044	undef $MAP_PREFETCHER;
		2045	};
		2046	$MAP_PREFETCHER->prio (6);
		2047
		2048	()
1381	}	2049	}
1382		2050
1383	sub save {	2051	sub save {
1384	my ($self) = @_;	2052	my ($self) = @_;
1385		2053
1386	my $lock = cf::lock_acquire "map_data:" . $self->path;	2054	my $lock = cf::lock_acquire "map_data:$self->{path}";
1387		2055
1388	$self->{last_save} = $cf::RUNTIME;	2056	$self->{last_save} = $cf::RUNTIME;
1389		2057
1390	return unless $self->dirty;	2058	return unless $self->dirty;
1391		2059
1392	my $save = $self->{path}->save_path; utf8::encode $save;	2060	my $save = $self->save_path; utf8::encode $save;
1393	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2061	my $uniq = $self->uniq_path; utf8::encode $uniq;
1394		2062
1395	$self->{load_path} = $save;	2063	$self->{load_path} = $save;
1396		2064
1397	return if $self->{deny_save};	2065	return if $self->{deny_save};
1398		2066
…		…
1401	cf::async {	2069	cf::async {
1402	$_->contr->save for $self->players;	2070	$_->contr->save for $self->players;
1403	};	2071	};
1404		2072
1405	if ($uniq) {	2073	if ($uniq) {
1406	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2074	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1407	$self->save_objects ($uniq, cf::IO_UNIQUES);	2075	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1408	} else {	2076	} else {
1409	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2077	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1410	}	2078	}
1411	}	2079	}
1412		2080
1413	sub swap_out {	2081	sub swap_out {
1414	my ($self) = @_;	2082	my ($self) = @_;
1415		2083
1416	# save first because save cedes	2084	# save first because save cedes
1417	$self->save;	2085	$self->save;
1418		2086
1419	my $lock = cf::lock_acquire "map_data:" . $self->path;	2087	my $lock = cf::lock_acquire "map_data:$self->{path}";
1420		2088
1421	return if $self->players;	2089	return if $self->players;
1422	return if $self->in_memory != cf::MAP_IN_MEMORY;	2090	return if $self->in_memory != cf::MAP_IN_MEMORY;
1423	return if $self->{deny_save};	2091	return if $self->{deny_save};
1424		2092
		2093	$self->in_memory (cf::MAP_SWAPPED);
		2094
		2095	$self->deactivate;
		2096	$_->clear_links_to ($self) for values %cf::MAP;
1425	$self->clear;	2097	$self->clear;
1426	$self->in_memory (cf::MAP_SWAPPED);
1427	}	2098	}
1428		2099
1429	sub reset_at {	2100	sub reset_at {
1430	my ($self) = @_;	2101	my ($self) = @_;
1431		2102
1432	# TODO: safety, remove and allow resettable per-player maps	2103	# TODO: safety, remove and allow resettable per-player maps
1433	return 1e99 if $self->{path}{user_rel};
1434	return 1e99 if $self->{deny_reset};	2104	return 1e99 if $self->{deny_reset};
1435		2105
1436	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2106	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1437	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2107	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1438		2108
…		…
1443	my ($self) = @_;	2113	my ($self) = @_;
1444		2114
1445	$self->reset_at <= $cf::RUNTIME	2115	$self->reset_at <= $cf::RUNTIME
1446	}	2116	}
1447		2117
1448	sub unlink_save {
1449	my ($self) = @_;
1450
1451	utf8::encode (my $save = $self->{path}->save_path);
1452	aioreq_pri 3; IO::AIO::aio_unlink $save;
1453	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1454	}
1455
1456	sub rename {
1457	my ($self, $new_path) = @_;
1458
1459	$self->unlink_save;
1460
1461	delete $cf::MAP{$self->path};
1462	$self->{path} = new cf::path $new_path;
1463	$self->path ($self->{path}->as_string);
1464	$cf::MAP{$self->path} = $self;
1465
1466	$self->save;
1467	}
1468
1469	sub reset {	2118	sub reset {
1470	my ($self) = @_;	2119	my ($self) = @_;
1471		2120
1472	my $lock = cf::lock_acquire "map_data:" . $self->path;	2121	my $lock = cf::lock_acquire "map_data:$self->{path}";
1473		2122
1474	return if $self->players;	2123	return if $self->players;
1475	return if $self->{path}{user_rel};#d#
1476		2124
1477	warn "resetting map ", $self->path;#d#	2125	warn "resetting map ", $self->path;
		2126
		2127	$self->in_memory (cf::MAP_SWAPPED);
		2128
		2129	# need to save uniques path
		2130	unless ($self->{deny_save}) {
		2131	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2132
		2133	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2134	if $uniq;
		2135	}
1478		2136
1479	delete $cf::MAP{$self->path};	2137	delete $cf::MAP{$self->path};
1480		2138
		2139	$self->deactivate;
1481	$_->clear_links_to ($self) for values %cf::MAP;	2140	$_->clear_links_to ($self) for values %cf::MAP;
		2141	$self->clear;
1482		2142
1483	$self->unlink_save;	2143	$self->unlink_save;
1484	$self->destroy;	2144	$self->destroy;
1485	}	2145	}
1486		2146
1487	my $nuke_counter = "aaaa";	2147	my $nuke_counter = "aaaa";
1488		2148
1489	sub nuke {	2149	sub nuke {
1490	my ($self) = @_;	2150	my ($self) = @_;
1491		2151
		2152	{
		2153	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2154
		2155	delete $cf::MAP{$self->path};
		2156
		2157	$self->unlink_save;
		2158
		2159	bless $self, "cf::map";
		2160	delete $self->{deny_reset};
1492	$self->{deny_save} = 1;	2161	$self->{deny_save} = 1;
1493	$self->reset_timeout (1);	2162	$self->reset_timeout (1);
1494	$self->rename ("{nuke}/" . ($nuke_counter++));	2163	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2164
		2165	$cf::MAP{$self->path} = $self;
		2166	}
		2167
1495	$self->reset; # polite request, might not happen	2168	$self->reset; # polite request, might not happen
1496	}	2169	}
1497		2170
1498	sub customise_for {	2171	=item $maps = cf::map::tmp_maps
1499	my ($map, $ob) = @_;
1500		2172
1501	if ($map->per_player) {	2173	Returns an arrayref with all map paths of currently instantiated and saved
1502	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2174	maps. May block.
		2175
		2176	=cut
		2177
		2178	sub tmp_maps() {
1503	}	2179	[
1504		2180	map {
1505	$map	2181	utf8::decode $_;
		2182	/\.map$/
		2183	? normalise $_
		2184	: ()
		2185	} @{ aio_readdir $TMPDIR or [] }
		2186	]
1506	}	2187	}
1507		2188
1508	sub emergency_save {	2189	=item $maps = cf::map::random_maps
1509	my $freeze_guard = cf::freeze_mainloop;
1510		2190
1511	warn "enter emergency perl save\n";	2191	Returns an arrayref with all map paths of currently instantiated and saved
		2192	random maps. May block.
1512		2193
1513	cf::sync_job {	2194	=cut
1514	warn "begin emergency player save\n";
1515	$_->save for values %cf::PLAYER;
1516	warn "end emergency player save\n";
1517		2195
1518	warn "begin emergency map save\n";	2196	sub random_maps() {
1519	$_->save for values %cf::MAP;	2197	[
1520	warn "end emergency map save\n";	2198	map {
1521	};	2199	utf8::decode $_;
		2200	/\.map$/
		2201	? normalise "?random/$_"
		2202	: ()
		2203	} @{ aio_readdir $RANDOMDIR or [] }
		2204	]
		2205	}
1522		2206
1523	warn "leave emergency perl save\n";	2207	=item cf::map::unique_maps
		2208
		2209	Returns an arrayref of paths of all shared maps that have
		2210	instantiated unique items. May block.
		2211
		2212	=cut
		2213
		2214	sub unique_maps() {
		2215	[
		2216	map {
		2217	utf8::decode $_;
		2218	/\.map$/
		2219	? normalise $_
		2220	: ()
		2221	} @{ aio_readdir $UNIQUEDIR or [] }
		2222	]
1524	}	2223	}
1525		2224
1526	package cf;	2225	package cf;
1527		2226
1528	=back	2227	=back
1529		2228
		2229	=head3 cf::object
		2230
		2231	=cut
		2232
		2233	package cf::object;
		2234
		2235	=over 4
		2236
		2237	=item $ob->inv_recursive
		2238
		2239	Returns the inventory of the object _and_ their inventories, recursively.
		2240
		2241	=cut
		2242
		2243	sub inv_recursive_;
		2244	sub inv_recursive_ {
		2245	map { $_, inv_recursive_ $_->inv } @_
		2246	}
		2247
		2248	sub inv_recursive {
		2249	inv_recursive_ inv $_[0]
		2250	}
		2251
		2252	=item $ref = $ob->ref
		2253
		2254	creates and returns a persistent reference to an objetc that can be stored as a string.
		2255
		2256	=item $ob = cf::object::deref ($refstring)
		2257
		2258	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2259	even if the object actually exists. May block.
		2260
		2261	=cut
		2262
		2263	sub deref {
		2264	my ($ref) = @_;
		2265
		2266	# temporary compatibility#TODO#remove
		2267	$ref =~ s{^<}{player/<};
		2268
		2269	if ($ref =~ m{^player\/(<1\.\d+>)/(.*)$}) {
		2270	my ($uuid, $name) = ($1, $2);
		2271	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2272	or return;
		2273	$pl->ob->uuid eq $uuid
		2274	or return;
		2275
		2276	$pl->ob
		2277	} else {
		2278	warn "$ref: cannot resolve object reference\n";
		2279	undef
		2280	}
		2281	}
		2282
		2283	package cf;
		2284
		2285	=back
1530		2286
1531	=head3 cf::object::player	2287	=head3 cf::object::player
1532		2288
1533	=over 4	2289	=over 4
1534		2290
…		…
1548		2304
1549	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2305	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1550		2306
1551	if ($self->{record_replies}) {	2307	if ($self->{record_replies}) {
1552	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2308	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2309
1553	} else {	2310	} else {
		2311	my $pl = $self->contr;
		2312
		2313	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2314	my $dialog = $pl->{npc_dialog};
		2315	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2316
		2317	} else {
1554	$msg = $npc->name . " says: $msg" if $npc;	2318	$msg = $npc->name . " says: $msg" if $npc;
1555	$self->message ($msg, $flags);	2319	$self->message ($msg, $flags);
		2320	}
1556	}	2321	}
		2322	}
		2323
		2324	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2325
		2326	=cut
		2327
		2328	sub cf::object::send_msg {
		2329	my $pl = shift->contr
		2330	or return;
		2331	$pl->send_msg (@_);
1557	}	2332	}
1558		2333
1559	=item $player_object->may ("access")	2334	=item $player_object->may ("access")
1560		2335
1561	Returns wether the given player is authorized to access resource "access"	2336	Returns wether the given player is authorized to access resource "access"
…		…
1574		2349
1575	=item $player_object->enter_link	2350	=item $player_object->enter_link
1576		2351
1577	Freezes the player and moves him/her to a special map (C<{link}>).	2352	Freezes the player and moves him/her to a special map (C<{link}>).
1578		2353
1579	The player should be reaosnably safe there for short amounts of time. You	2354	The player should be reasonably safe there for short amounts of time. You
1580	I<MUST> call C<leave_link> as soon as possible, though.	2355	I<MUST> call C<leave_link> as soon as possible, though.
1581		2356
		2357	Will never block.
		2358
1582	=item $player_object->leave_link ($map, $x, $y)	2359	=item $player_object->leave_link ($map, $x, $y)
1583		2360
1584	Moves the player out of the specila link map onto the given map. If the	2361	Moves the player out of the special C<{link}> map onto the specified
1585	map is not valid (or omitted), the player will be moved back to the	2362	map. If the map is not valid (or omitted), the player will be moved back
1586	location he/she was before the call to C<enter_link>, or, if that fails,	2363	to the location he/she was before the call to C<enter_link>, or, if that
1587	to the emergency map position.	2364	fails, to the emergency map position.
1588		2365
1589	Might block.	2366	Might block.
1590		2367
1591	=cut	2368	=cut
		2369
		2370	sub link_map {
		2371	unless ($LINK_MAP) {
		2372	$LINK_MAP = cf::map::find "{link}"
		2373	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2374	$LINK_MAP->load;
		2375	}
		2376
		2377	$LINK_MAP
		2378	}
1592		2379
1593	sub cf::object::player::enter_link {	2380	sub cf::object::player::enter_link {
1594	my ($self) = @_;	2381	my ($self) = @_;
1595		2382
1596	$self->deactivate_recursive;	2383	$self->deactivate_recursive;
1597		2384
1598	return if $self->map == $LINK_MAP;	2385	return if UNIVERSAL::isa $self->map, "ext::map_link";
1599		2386
1600	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2387	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1601	if $self->map;	2388	if $self->map && $self->map->{path} ne "{link}";
1602		2389
1603	$self->enter_map ($LINK_MAP, 20, 20);	2390	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1604	}	2391	}
1605		2392
1606	sub cf::object::player::leave_link {	2393	sub cf::object::player::leave_link {
1607	my ($self, $map, $x, $y) = @_;	2394	my ($self, $map, $x, $y) = @_;
		2395
		2396	return unless $self->contr->active;
1608		2397
1609	my $link_pos = delete $self->{_link_pos};	2398	my $link_pos = delete $self->{_link_pos};
1610		2399
1611	unless ($map) {	2400	unless ($map) {
1612	# restore original map position	2401	# restore original map position
…		…
1626	# use -1 or undef as default coordinates, not 0, 0	2415	# use -1 or undef as default coordinates, not 0, 0
1627	($x, $y) = ($map->enter_x, $map->enter_y)	2416	($x, $y) = ($map->enter_x, $map->enter_y)
1628	if $x <=0 && $y <= 0;	2417	if $x <=0 && $y <= 0;
1629		2418
1630	$map->load;	2419	$map->load;
		2420	$map->load_neighbours;
1631		2421
1632	return unless $self->contr->active;	2422	return unless $self->contr->active;
1633	$self->activate_recursive;	2423	$self->activate_recursive;
		2424
		2425	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1634	$self->enter_map ($map, $x, $y);	2426	$self->enter_map ($map, $x, $y);
1635	}	2427	}
1636		2428
1637	cf::player->attach (	2429	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1638	on_logout => sub {
1639	my ($pl) = @_;
1640		2430
1641	# abort map switching before logout	2431	Moves the player to the given map-path and coordinates by first freezing
1642	if ($pl->ob->{_link_pos}) {	2432	her, loading and preparing them map, calling the provided $check callback
1643	cf::sync_job {	2433	that has to return the map if sucecssful, and then unfreezes the player on
1644	$pl->ob->leave_link	2434	the new (success) or old (failed) map position. In either case, $done will
1645	};	2435	be called at the end of this process.
1646	}
1647	},
1648	on_login => sub {
1649	my ($pl) = @_;
1650		2436
1651	# try to abort aborted map switching on player login :)
1652	# should happen only on crashes
1653	if ($pl->ob->{_link_pos}) {
1654	$pl->ob->enter_link;
1655	(async {
1656	# we need this sleep as the login has a concurrent enter_exit running
1657	# and this sleep increases chances of the player not ending up in scorn
1658	$pl->ob->reply (undef,
1659	"There was an internal problem at your last logout, "
1660	. "the server will try to bring you to your intended destination in a second.",
1661	cf::NDI_RED);
1662	Coro::Timer::sleep 1;
1663	$pl->ob->leave_link;
1664	})->prio (2);
1665	}
1666	},
1667	);
1668
1669	=item $player_object->goto ($path, $x, $y)
1670
1671	=cut	2437	=cut
		2438
		2439	our $GOTOGEN;
1672		2440
1673	sub cf::object::player::goto {	2441	sub cf::object::player::goto {
1674	my ($self, $path, $x, $y) = @_;	2442	my ($self, $path, $x, $y, $check, $done) = @_;
		2443
		2444	# do generation counting so two concurrent goto's will be executed in-order
		2445	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1675		2446
1676	$self->enter_link;	2447	$self->enter_link;
1677		2448
1678	(async {	2449	(async {
1679	$path = new cf::path $path;	2450	my $map = eval {
1680
1681	my $map = cf::map::find $path->as_string;	2451	my $map = cf::map::find $path;
		2452
		2453	if ($map) {
1682	$map = $map->customise_for ($self) if $map;	2454	$map = $map->customise_for ($self);
1683		2455	$map = $check->($map) if $check && $map;
1684	# warn "entering ", $map->path, " at ($x, $y)\n"	2456	} else {
1685	# if $map;
1686
1687	$map or Carp::cluck ("oy");#d#
1688	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2457	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2458	}
1689		2459
		2460	$map
		2461	};
		2462
		2463	if ($@) {
		2464	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2465	LOG llevError | logBacktrace, Carp::longmess $@;
		2466	}
		2467
		2468	if ($gen == $self->{_goto_generation}) {
		2469	delete $self->{_goto_generation};
1690	$self->leave_link ($map, $x, $y);	2470	$self->leave_link ($map, $x, $y);
		2471	}
		2472
		2473	$done->() if $done;
1691	})->prio (1);	2474	})->prio (1);
1692	}	2475	}
1693		2476
1694	=item $player_object->enter_exit ($exit_object)	2477	=item $player_object->enter_exit ($exit_object)
1695		2478
…		…
1697		2480
1698	sub parse_random_map_params {	2481	sub parse_random_map_params {
1699	my ($spec) = @_;	2482	my ($spec) = @_;
1700		2483
1701	my $rmp = { # defaults	2484	my $rmp = { # defaults
1702	xsize => 10,	2485	xsize => (cf::rndm 15, 40),
1703	ysize => 10,	2486	ysize => (cf::rndm 15, 40),
		2487	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2488	#layout => string,
1704	};	2489	};
1705		2490
1706	for (split /\n/, $spec) {	2491	for (split /\n/, $spec) {
1707	my ($k, $v) = split /\s+/, $_, 2;	2492	my ($k, $v) = split /\s+/, $_, 2;
1708		2493
…		…
1712	$rmp	2497	$rmp
1713	}	2498	}
1714		2499
1715	sub prepare_random_map {	2500	sub prepare_random_map {
1716	my ($exit) = @_;	2501	my ($exit) = @_;
		2502
		2503	my $guard = cf::lock_acquire "exit_prepare:$exit";
1717		2504
1718	# all this does is basically replace the /! path by	2505	# all this does is basically replace the /! path by
1719	# a new random map path (?random/...) with a seed	2506	# a new random map path (?random/...) with a seed
1720	# that depends on the exit object	2507	# that depends on the exit object
1721		2508
1722	my $rmp = parse_random_map_params $exit->msg;	2509	my $rmp = parse_random_map_params $exit->msg;
1723		2510
1724	if ($exit->map) {	2511	if ($exit->map) {
1725	$rmp->{region} = $exit->map->region_name;	2512	$rmp->{region} = $exit->region->name;
1726	$rmp->{origin_map} = $exit->map->path;	2513	$rmp->{origin_map} = $exit->map->path;
1727	$rmp->{origin_x} = $exit->x;	2514	$rmp->{origin_x} = $exit->x;
1728	$rmp->{origin_y} = $exit->y;	2515	$rmp->{origin_y} = $exit->y;
1729	}	2516	}
1730		2517
1731	$rmp->{random_seed} ||= $exit->random_seed;	2518	$rmp->{random_seed} ||= $exit->random_seed;
1732		2519
1733	my $data = cf::to_json $rmp;	2520	my $data = cf::to_json $rmp;
1734	my $md5 = Digest::MD5::md5_hex $data;	2521	my $md5 = Digest::MD5::md5_hex $data;
		2522	my $meta = "$RANDOMDIR/$md5.meta";
1735		2523
1736	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2524	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1737	aio_write $fh, 0, (length $data), $data, 0;	2525	aio_write $fh, 0, (length $data), $data, 0;
		2526	undef $fh;
		2527	aio_rename "$meta~", $meta;
1738		2528
1739	$exit->slaying ("?random/$md5");	2529	$exit->slaying ("?random/$md5");
1740	$exit->msg (undef);	2530	$exit->msg (undef);
1741	}	2531	}
1742	}	2532	}
…		…
1744	sub cf::object::player::enter_exit {	2534	sub cf::object::player::enter_exit {
1745	my ($self, $exit) = @_;	2535	my ($self, $exit) = @_;
1746		2536
1747	return unless $self->type == cf::PLAYER;	2537	return unless $self->type == cf::PLAYER;
1748		2538
		2539	if ($exit->slaying eq "/!") {
		2540	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2541	# the problem is that $exit might not survive long enough
		2542	# so it needs to be done right now, right here
		2543	cf::sync_job { prepare_random_map $exit };
		2544	}
		2545
		2546	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2547	my $hp = $exit->stats->hp;
		2548	my $sp = $exit->stats->sp;
		2549
1749	$self->enter_link;	2550	$self->enter_link;
		2551
		2552	# if exit is damned, update players death & WoR home-position
		2553	$self->contr->savebed ($slaying, $hp, $sp)
		2554	if $exit->flag (FLAG_DAMNED);
1750		2555
1751	(async {	2556	(async {
1752	$self->deactivate_recursive; # just to be sure	2557	$self->deactivate_recursive; # just to be sure
1753	unless (eval {	2558	unless (eval {
1754	prepare_random_map $exit	2559	$self->goto ($slaying, $hp, $sp);
1755	if $exit->slaying eq "/!";
1756
1757	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1758	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1759		2560
1760	1;	2561	1;
1761	}) {	2562	}) {
1762	$self->message ("Something went wrong deep within the crossfire server. "	2563	$self->message ("Something went wrong deep within the crossfire server. "
1763	. "I'll try to bring you back to the map you were before. "	2564	. "I'll try to bring you back to the map you were before. "
1764	. "Please report this to the dungeon master",	2565	. "Please report this to the dungeon master!",
1765	cf::NDI_UNIQUE | cf::NDI_RED);	2566	cf::NDI_UNIQUE | cf::NDI_RED);
1766		2567
1767	warn "ERROR in enter_exit: $@";	2568	warn "ERROR in enter_exit: $@";
1768	$self->leave_link;	2569	$self->leave_link;
1769	}	2570	}
1770	})->prio (1);	2571	})->prio (1);
…		…
1783		2584
1784	sub cf::client::send_drawinfo {	2585	sub cf::client::send_drawinfo {
1785	my ($self, $text, $flags) = @_;	2586	my ($self, $text, $flags) = @_;
1786		2587
1787	utf8::encode $text;	2588	utf8::encode $text;
1788	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2589	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1789	}	2590	}
1790		2591
		2592	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2593
		2594	Send a drawinfo or msg packet to the client, formatting the msg for the
		2595	client if neccessary. C<$type> should be a string identifying the type of
		2596	the message, with C<log> being the default. If C<$color> is negative, suppress
		2597	the message unless the client supports the msg packet.
		2598
		2599	=cut
		2600
		2601	our %CHANNEL = (
		2602	"c/identify" => {
		2603	id => "identify",
		2604	title => "Identify",
		2605	reply => undef,
		2606	tooltip => "Items recently identified",
		2607	},
		2608	"c/examine" => {
		2609	id => "examine",
		2610	title => "Examine",
		2611	reply => undef,
		2612	tooltip => "Signs and other items you examined",
		2613	},
		2614	);
		2615
		2616	sub cf::client::send_msg {
		2617	my ($self, $channel, $msg, $color, @extra) = @_;
		2618
		2619	$msg = $self->pl->expand_cfpod ($msg);
		2620
		2621	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2622
		2623	# check predefined channels, for the benefit of C
		2624	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2625
		2626	if (ref $channel) {
		2627	# send meta info to client, if not yet sent
		2628	unless (exists $self->{channel}{$channel->{id}}) {
		2629	$self->{channel}{$channel->{id}} = $channel;
		2630	$self->ext_msg (channel_info => $channel)
		2631	if $self->can_msg;
		2632	}
		2633
		2634	$channel = $channel->{id};
		2635	}
		2636
		2637	return unless @extra || length $msg;
		2638
		2639	if ($self->can_msg) {
		2640	# default colour, mask it out
		2641	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2642	if $color & cf::NDI_DEF;
		2643
		2644	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2645	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2646	} else {
		2647	if ($color >= 0) {
		2648	# replace some tags by gcfclient-compatible ones
		2649	for ($msg) {
		2650	1 while
		2651	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2652	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2653	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2654	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2655	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2656	}
		2657
		2658	$color &= cf::NDI_COLOR_MASK;
		2659
		2660	utf8::encode $msg;
		2661
		2662	if (0 && $msg =~ /\[/) {
		2663	# COMMAND/INFO
		2664	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2665	} else {
		2666	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2667	$self->send_packet ("drawinfo $color $msg")
		2668	}
		2669	}
		2670	}
		2671	}
		2672
		2673	=item $client->ext_msg ($type, @msg)
		2674
		2675	Sends an ext event to the client.
		2676
		2677	=cut
		2678
		2679	sub cf::client::ext_msg($$@) {
		2680	my ($self, $type, @msg) = @_;
		2681
		2682	if ($self->extcmd == 2) {
		2683	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2684	} elsif ($self->extcmd == 1) { # TODO: remove
		2685	push @msg, msgtype => "event_$type";
		2686	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2687	}
		2688	}
		2689
		2690	=item $client->ext_reply ($msgid, @msg)
		2691
		2692	Sends an ext reply to the client.
		2693
		2694	=cut
		2695
		2696	sub cf::client::ext_reply($$@) {
		2697	my ($self, $id, @msg) = @_;
		2698
		2699	if ($self->extcmd == 2) {
		2700	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2701	} elsif ($self->extcmd == 1) {
		2702	#TODO: version 1, remove
		2703	unshift @msg, msgtype => "reply", msgid => $id;
		2704	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2705	}
		2706	}
1791		2707
1792	=item $success = $client->query ($flags, "text", \&cb)	2708	=item $success = $client->query ($flags, "text", \&cb)
1793		2709
1794	Queues a query to the client, calling the given callback with	2710	Queues a query to the client, calling the given callback with
1795	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2711	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1796	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2712	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1797		2713
1798	Queries can fail, so check the return code. Or don't, as queries will become	2714	Queries can fail, so check the return code. Or don't, as queries will
1799	reliable at some point in the future.	2715	become reliable at some point in the future.
1800		2716
1801	=cut	2717	=cut
1802		2718
1803	sub cf::client::query {	2719	sub cf::client::query {
1804	my ($self, $flags, $text, $cb) = @_;	2720	my ($self, $flags, $text, $cb) = @_;
…		…
1812	utf8::encode $text;	2728	utf8::encode $text;
1813	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2729	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1814		2730
1815	$self->send_packet ($self->{query_queue}[0][0])	2731	$self->send_packet ($self->{query_queue}[0][0])
1816	if @{ $self->{query_queue} } == 1;	2732	if @{ $self->{query_queue} } == 1;
		2733
		2734	1
1817	}	2735	}
1818		2736
1819	cf::client->attach (	2737	cf::client->attach (
		2738	on_connect => sub {
		2739	my ($ns) = @_;
		2740
		2741	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2742	},
1820	on_reply => sub {	2743	on_reply => sub {
1821	my ($ns, $msg) = @_;	2744	my ($ns, $msg) = @_;
1822		2745
1823	# this weird shuffling is so that direct followup queries	2746	# this weird shuffling is so that direct followup queries
1824	# get handled first	2747	# get handled first
1825	my $queue = delete $ns->{query_queue}	2748	my $queue = delete $ns->{query_queue}
1826	or return; # be conservative, not sure how that can happen, but we saw a crash here	2749	or return; # be conservative, not sure how that can happen, but we saw a crash here
1827		2750
1828	(shift @$queue)->[1]->($msg);	2751	(shift @$queue)->[1]->($msg);
		2752	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1829		2753
1830	push @{ $ns->{query_queue} }, @$queue;	2754	push @{ $ns->{query_queue} }, @$queue;
1831		2755
1832	if (@{ $ns->{query_queue} } == @$queue) {	2756	if (@{ $ns->{query_queue} } == @$queue) {
1833	if (@$queue) {	2757	if (@$queue) {
…		…
1835	} else {	2759	} else {
1836	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2760	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1837	}	2761	}
1838	}	2762	}
1839	},	2763	},
		2764	on_exticmd => sub {
		2765	my ($ns, $buf) = @_;
		2766
		2767	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2768
		2769	if (ref $msg) {
		2770	my ($type, $reply, @payload) =
		2771	"ARRAY" eq ref $msg
		2772	? @$msg
		2773	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2774
		2775	my @reply;
		2776
		2777	if (my $cb = $EXTICMD{$type}) {
		2778	@reply = $cb->($ns, @payload);
		2779	}
		2780
		2781	$ns->ext_reply ($reply, @reply)
		2782	if $reply;
		2783
		2784	} else {
		2785	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2786	}
		2787
		2788	cf::override;
		2789	},
1840	);	2790	);
1841		2791
1842	=item $client->async (\&cb)	2792	=item $client->async (\&cb)
1843		2793
1844	Create a new coroutine, running the specified callback. The coroutine will	2794	Create a new coroutine, running the specified callback. The coroutine will
…		…
1885	our $safe = new Safe "safe";	2835	our $safe = new Safe "safe";
1886	our $safe_hole = new Safe::Hole;	2836	our $safe_hole = new Safe::Hole;
1887		2837
1888	$SIG{FPE} = 'IGNORE';	2838	$SIG{FPE} = 'IGNORE';
1889		2839
1890	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2840	$safe->permit_only (Opcode::opset qw(
		2841	:base_core :base_mem :base_orig :base_math
		2842	grepstart grepwhile mapstart mapwhile
		2843	sort time
		2844	));
1891		2845
1892	# here we export the classes and methods available to script code	2846	# here we export the classes and methods available to script code
1893		2847
1894	=pod	2848	=pod
1895		2849
1896	The following fucntions and emthods are available within a safe environment:	2850	The following functions and methods are available within a safe environment:
1897		2851
1898	cf::object contr pay_amount pay_player map	2852	cf::object
		2853	contr pay_amount pay_player map x y force_find force_add
		2854	insert remove name archname title slaying race decrease_ob_nr
		2855
1899	cf::object::player player	2856	cf::object::player
1900	cf::player peaceful	2857	player
1901	cf::map trigger	2858
		2859	cf::player
		2860	peaceful
		2861
		2862	cf::map
		2863	trigger
1902		2864
1903	=cut	2865	=cut
1904		2866
1905	for (	2867	for (
1906	["cf::object" => qw(contr pay_amount pay_player map)],	2868	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2869	insert remove inv name archname title slaying race
		2870	decrease_ob_nr)],
1907	["cf::object::player" => qw(player)],	2871	["cf::object::player" => qw(player)],
1908	["cf::player" => qw(peaceful)],	2872	["cf::player" => qw(peaceful)],
1909	["cf::map" => qw(trigger)],	2873	["cf::map" => qw(trigger)],
1910	) {	2874	) {
1911	no strict 'refs';	2875	no strict 'refs';
…		…
1982	=back	2946	=back
1983		2947
1984	=cut	2948	=cut
1985		2949
1986	#############################################################################	2950	#############################################################################
		2951	# the server's init and main functions
1987		2952
1988	=head2 EXTENSION DATABASE SUPPORT	2953	sub load_facedata($) {
		2954	my ($path) = @_;
1989		2955
1990	Crossfire maintains a very simple database for extension use. It can	2956	# HACK to clear player env face cache, we need some signal framework
1991	currently store anything that can be serialised using Storable, which	2957	# for this (global event?)
1992	excludes objects.	2958	%ext::player_env::MUSIC_FACE_CACHE = ();
1993		2959
1994	The parameter C<$family> should best start with the name of the extension	2960	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1995	using it, it should be unique.
1996		2961
1997	=over 4	2962	warn "loading facedata from $path\n";
1998		2963
1999	=item $hashref = cf::db_get $family	2964	my $facedata;
		2965	0 < aio_load $path, $facedata
		2966	or die "$path: $!";
2000		2967
2001	Return a hashref for use by the extension C<$family>, which can be	2968	$facedata = Coro::Storable::thaw $facedata;
2002	modified. After modifications, you have to call C<cf::db_dirty> or
2003	C<cf::db_sync>.
2004		2969
2005	=item $value = cf::db_get $family => $key	2970	$facedata->{version} == 2
		2971	or cf::cleanup "$path: version mismatch, cannot proceed.";
2006		2972
2007	Returns a single value from the database	2973	# patch in the exptable
2008		2974	$facedata->{resource}{"res/exp_table"} = {
2009	=item cf::db_put $family => $hashref	2975	type => FT_RSRC,
2010		2976	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2011	Stores the given family hashref into the database. Updates are delayed, if
2012	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2013
2014	=item cf::db_put $family => $key => $value
2015
2016	Stores the given C<$value> in the family hash. Updates are delayed, if you
2017	want the data to be synced to disk immediately, use C<cf::db_sync>.
2018
2019	=item cf::db_dirty
2020
2021	Marks the database as dirty, to be updated at a later time.
2022
2023	=item cf::db_sync
2024
2025	Immediately write the database to disk I<if it is dirty>.
2026
2027	=cut
2028
2029	our $DB;
2030
2031	{
2032	my $path = cf::localdir . "/database.pst";
2033
2034	sub db_load() {
2035	$DB = stat $path ? Storable::retrieve $path : { };
2036	}
2037
2038	my $pid;
2039
2040	sub db_save() {
2041	waitpid $pid, 0 if $pid;
2042	if (0 == ($pid = fork)) {
2043	$DB->{_meta}{version} = 1;
2044	Storable::nstore $DB, "$path~";
2045	rename "$path~", $path;
2046	cf::_exit 0 if defined $pid;
2047	}
2048	}
2049
2050	my $dirty;
2051
2052	sub db_sync() {
2053	db_save if $dirty;
2054	undef $dirty;
2055	}
2056
2057	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2058	db_sync;
2059	});	2977	};
		2978	cf::cede_to_tick;
2060		2979
2061	sub db_dirty() {
2062	$dirty = 1;
2063	$idle->start;
2064	}	2980	{
		2981	my $faces = $facedata->{faceinfo};
2065		2982
2066	sub db_get($;$) {	2983	while (my ($face, $info) = each %$faces) {
2067	@_ >= 2	2984	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2068	? $DB->{$_[0]}{$_[1]}	2985	cf::face::set_visibility $idx, $info->{visibility};
2069	: ($DB->{$_[0]} ||= { })	2986	cf::face::set_magicmap $idx, $info->{magicmap};
2070	}	2987	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		2988	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2071		2989
2072	sub db_put($$;$) {	2990	cf::cede_to_tick;
2073	if (@_ >= 3) {
2074	$DB->{$_[0]}{$_[1]} = $_[2];
2075	} else {
2076	$DB->{$_[0]} = $_[1];
2077	}
2078	db_dirty;
2079	}
2080
2081	cf::global->attach (
2082	prio => 10000,
2083	on_cleanup => sub {
2084	db_sync;
2085	},	2991	}
2086	);
2087	}
2088		2992
2089	#############################################################################	2993	while (my ($face, $info) = each %$faces) {
2090	# the server's main()	2994	next unless $info->{smooth};
		2995	my $idx = cf::face::find $face
		2996	or next;
		2997	if (my $smooth = cf::face::find $info->{smooth}) {
		2998	cf::face::set_smooth $idx, $smooth;
		2999	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3000	} else {
		3001	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3002	}
2091		3003
2092	sub cfg_load {	3004	cf::cede_to_tick;
		3005	}
		3006	}
		3007
		3008	{
		3009	my $anims = $facedata->{animinfo};
		3010
		3011	while (my ($anim, $info) = each %$anims) {
		3012	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3013	cf::cede_to_tick;
		3014	}
		3015
		3016	cf::anim::invalidate_all; # d'oh
		3017	}
		3018
		3019	{
		3020	# TODO: for gcfclient pleasure, we should give resources
		3021	# that gcfclient doesn't grok a >10000 face index.
		3022	my $res = $facedata->{resource};
		3023
		3024	my $soundconf = delete $res->{"res/sound.conf"};
		3025
		3026	while (my ($name, $info) = each %$res) {
		3027	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3028	my $data;
		3029
		3030	if ($info->{type} & 1) {
		3031	# prepend meta info
		3032
		3033	my $meta = $enc->encode ({
		3034	name => $name,
		3035	%{ $info->{meta} || {} },
		3036	});
		3037
		3038	$data = pack "(w/a*)*", $meta, $info->{data};
		3039	} else {
		3040	$data = $info->{data};
		3041	}
		3042
		3043	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3044	cf::face::set_type $idx, $info->{type};
		3045
		3046	cf::cede_to_tick;
		3047	}
		3048
		3049	if ($soundconf) {
		3050	$soundconf = $enc->decode (delete $soundconf->{data});
		3051
		3052	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3053	my $sound = $soundconf->{compat}[$_]
		3054	or next;
		3055
		3056	my $face = cf::face::find "sound/$sound->[1]";
		3057	cf::sound::set $sound->[0] => $face;
		3058	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3059	}
		3060
		3061	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3062	my $face = cf::face::find "sound/$v";
		3063	cf::sound::set $k => $face;
		3064	}
		3065	}
		3066	}
		3067
		3068	1
		3069	}
		3070
		3071	register_exticmd fx_want => sub {
		3072	my ($ns, $want) = @_;
		3073
		3074	while (my ($k, $v) = each %$want) {
		3075	$ns->fx_want ($k, $v);
		3076	}
		3077	};
		3078
		3079	sub reload_regions {
		3080	# HACK to clear player env face cache, we need some signal framework
		3081	# for this (global event?)
		3082	%ext::player_env::MUSIC_FACE_CACHE = ();
		3083
		3084	load_resource_file "$MAPDIR/regions"
		3085	or die "unable to load regions file\n";
		3086
		3087	for (cf::region::list) {
		3088	$_->{match} = qr/$_->{match}/
		3089	if exists $_->{match};
		3090	}
		3091	}
		3092
		3093	sub reload_facedata {
		3094	load_facedata "$DATADIR/facedata"
		3095	or die "unable to load facedata\n";
		3096	}
		3097
		3098	sub reload_archetypes {
		3099	load_resource_file "$DATADIR/archetypes"
		3100	or die "unable to load archetypes\n";
		3101	#d# NEED to laod twice to resolve forward references
		3102	# this really needs to be done in an extra post-pass
		3103	# (which needs to be synchronous, so solve it differently)
		3104	load_resource_file "$DATADIR/archetypes"
		3105	or die "unable to load archetypes\n";
		3106	}
		3107
		3108	sub reload_treasures {
		3109	load_resource_file "$DATADIR/treasures"
		3110	or die "unable to load treasurelists\n";
		3111	}
		3112
		3113	sub reload_resources {
		3114	warn "reloading resource files...\n";
		3115
		3116	reload_regions;
		3117	reload_facedata;
		3118	#reload_archetypes;#d#
		3119	reload_archetypes;
		3120	reload_treasures;
		3121
		3122	warn "finished reloading resource files\n";
		3123	}
		3124
		3125	sub init {
		3126	reload_resources;
		3127	}
		3128
		3129	sub reload_config {
2093	open my $fh, "<:utf8", cf::confdir . "/config"	3130	open my $fh, "<:utf8", "$CONFDIR/config"
2094	or return;	3131	or return;
2095		3132
2096	local $/;	3133	local $/;
2097	*CFG = YAML::Syck::Load <$fh>;	3134	*CFG = YAML::Syck::Load <$fh>;
2098		3135
…		…
2112		3149
2113	sub main {	3150	sub main {
2114	# we must not ever block the main coroutine	3151	# we must not ever block the main coroutine
2115	local $Coro::idle = sub {	3152	local $Coro::idle = sub {
2116	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3153	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3154	(async {
2117	async { Event::one_event };	3155	Event::one_event;
		3156	})->prio (Coro::PRIO_MAX);
2118	};	3157	};
2119		3158
2120	cfg_load;	3159	reload_config;
2121	db_load;	3160	db_init;
2122	load_extensions;	3161	load_extensions;
		3162
		3163	$TICK_WATCHER->start;
2123	Event::loop;	3164	Event::loop;
2124	}	3165	}
2125		3166
2126	#############################################################################	3167	#############################################################################
2127	# initialisation	3168	# initialisation and cleanup
2128		3169
		3170	# install some emergency cleanup handlers
		3171	BEGIN {
		3172	for my $signal (qw(INT HUP TERM)) {
		3173	Event->signal (
		3174	reentrant => 0,
		3175	data => WF_AUTOCANCEL,
		3176	signal => $signal,
		3177	prio => 0,
		3178	cb => sub {
		3179	cf::cleanup "SIG$signal";
		3180	},
		3181	);
		3182	}
		3183	}
		3184
		3185	sub write_runtime {
		3186	my $runtime = "$LOCALDIR/runtime";
		3187
		3188	# first touch the runtime file to show we are still running:
		3189	# the fsync below can take a very very long time.
		3190
		3191	IO::AIO::aio_utime $runtime, undef, undef;
		3192
		3193	my $guard = cf::lock_acquire "write_runtime";
		3194
		3195	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3196	or return;
		3197
		3198	my $value = $cf::RUNTIME + 90 + 10;
		3199	# 10 is the runtime save interval, for a monotonic clock
		3200	# 60 allows for the watchdog to kill the server.
		3201
		3202	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3203	and return;
		3204
		3205	# always fsync - this file is important
		3206	aio_fsync $fh
		3207	and return;
		3208
		3209	# touch it again to show we are up-to-date
		3210	aio_utime $fh, undef, undef;
		3211
		3212	close $fh
		3213	or return;
		3214
		3215	aio_rename "$runtime~", $runtime
		3216	and return;
		3217
		3218	warn "runtime file written.\n";
		3219
		3220	1
		3221	}
		3222
		3223	sub emergency_save() {
		3224	my $freeze_guard = cf::freeze_mainloop;
		3225
		3226	warn "enter emergency perl save\n";
		3227
		3228	cf::sync_job {
		3229	# use a peculiar iteration method to avoid tripping on perl
		3230	# refcount bugs in for. also avoids problems with players
		3231	# and maps saved/destroyed asynchronously.
		3232	warn "begin emergency player save\n";
		3233	for my $login (keys %cf::PLAYER) {
		3234	my $pl = $cf::PLAYER{$login} or next;
		3235	$pl->valid or next;
		3236	$pl->save;
		3237	}
		3238	warn "end emergency player save\n";
		3239
		3240	warn "begin emergency map save\n";
		3241	for my $path (keys %cf::MAP) {
		3242	my $map = $cf::MAP{$path} or next;
		3243	$map->valid or next;
		3244	$map->save;
		3245	}
		3246	warn "end emergency map save\n";
		3247
		3248	warn "begin emergency database checkpoint\n";
		3249	BDB::db_env_txn_checkpoint $DB_ENV;
		3250	warn "end emergency database checkpoint\n";
		3251	};
		3252
		3253	warn "leave emergency perl save\n";
		3254	}
		3255
		3256	sub post_cleanup {
		3257	my ($make_core) = @_;
		3258
		3259	warn Carp::longmess "post_cleanup backtrace"
		3260	if $make_core;
		3261	}
		3262
2129	sub reload() {	3263	sub do_reload_perl() {
2130	# can/must only be called in main	3264	# can/must only be called in main
2131	if ($Coro::current != $Coro::main) {	3265	if ($Coro::current != $Coro::main) {
2132	warn "can only reload from main coroutine\n";	3266	warn "can only reload from main coroutine";
2133	return;	3267	return;
2134	}	3268	}
2135		3269
2136	warn "reloading...";	3270	warn "reloading...";
2137		3271
2138	my $guard = freeze_mainloop;	3272	warn "entering sync_job";
		3273
		3274	cf::sync_job {
		3275	cf::write_runtime; # external watchdog should not bark
2139	cf::emergency_save;	3276	cf::emergency_save;
		3277	cf::write_runtime; # external watchdog should not bark
2140		3278
2141	eval {	3279	warn "syncing database to disk";
		3280	BDB::db_env_txn_checkpoint $DB_ENV;
		3281
2142	# if anything goes wrong in here, we should simply crash as we already saved	3282	# if anything goes wrong in here, we should simply crash as we already saved
2143		3283
2144	# cancel all watchers	3284	warn "cancelling all WF_AUTOCANCEL watchers";
2145	for (Event::all_watchers) {	3285	for (Event::all_watchers) {
2146	$_->cancel if $_->data & WF_AUTOCANCEL;	3286	$_->cancel if $_->data & WF_AUTOCANCEL;
2147	}	3287	}
2148		3288
		3289	warn "flushing outstanding aio requests";
		3290	for (;;) {
		3291	BDB::flush;
		3292	IO::AIO::flush;
		3293	Coro::cede;
		3294	last unless IO::AIO::nreqs || BDB::nreqs;
		3295	warn "iterate...";
		3296	}
		3297
		3298	++$RELOAD;
		3299
2149	# cancel all extension coros	3300	warn "cancelling all extension coros";
2150	$_->cancel for values %EXT_CORO;	3301	$_->cancel for values %EXT_CORO;
2151	%EXT_CORO = ();	3302	%EXT_CORO = ();
2152		3303
2153	# unload all extensions	3304	warn "removing commands";
2154	for (@exts) {	3305	%COMMAND = ();
		3306
		3307	warn "removing ext/exti commands";
		3308	%EXTCMD = ();
		3309	%EXTICMD = ();
		3310
		3311	warn "unloading/nuking all extensions";
		3312	for my $pkg (@EXTS) {
2155	warn "unloading <$_>";	3313	warn "... unloading $pkg";
2156	unload_extension $_;	3314
		3315	if (my $cb = $pkg->can ("unload")) {
		3316	eval {
		3317	$cb->($pkg);
		3318	1
		3319	} or warn "$pkg unloaded, but with errors: $@";
2157	}	3320	}
2158		3321
		3322	warn "... nuking $pkg";
		3323	Symbol::delete_package $pkg;
		3324	}
		3325
2159	# unload all modules loaded from $LIBDIR	3326	warn "unloading all perl modules loaded from $LIBDIR";
2160	while (my ($k, $v) = each %INC) {	3327	while (my ($k, $v) = each %INC) {
2161	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3328	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2162		3329
2163	warn "removing <$k>";	3330	warn "... unloading $k";
2164	delete $INC{$k};	3331	delete $INC{$k};
2165		3332
2166	$k =~ s/\.pm$//;	3333	$k =~ s/\.pm$//;
2167	$k =~ s/\//::/g;	3334	$k =~ s/\//::/g;
2168		3335
…		…
2171	}	3338	}
2172		3339
2173	Symbol::delete_package $k;	3340	Symbol::delete_package $k;
2174	}	3341	}
2175		3342
2176	# sync database to disk
2177	cf::db_sync;
2178	IO::AIO::flush;
2179
2180	# get rid of safe::, as good as possible	3343	warn "getting rid of safe::, as good as possible";
2181	Symbol::delete_package "safe::$_"	3344	Symbol::delete_package "safe::$_"
2182	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3345	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2183		3346
2184	# remove register_script_function callbacks
2185	# TODO
2186
2187	# unload cf.pm "a bit"	3347	warn "unloading cf.pm \"a bit\"";
2188	delete $INC{"cf.pm"};	3348	delete $INC{"cf.pm"};
		3349	delete $INC{"cf/pod.pm"};
2189		3350
2190	# don't, removes xs symbols, too,	3351	# don't, removes xs symbols, too,
2191	# and global variables created in xs	3352	# and global variables created in xs
2192	#Symbol::delete_package __PACKAGE__;	3353	#Symbol::delete_package __PACKAGE__;
2193		3354
2194	# reload cf.pm	3355	warn "unload completed, starting to reload now";
		3356
2195	warn "reloading cf.pm";	3357	warn "reloading cf.pm";
2196	require cf;	3358	require cf;
2197	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3359	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2198		3360
2199	# load config and database again	3361	warn "loading config and database again";
2200	cf::cfg_load;	3362	cf::reload_config;
2201	cf::db_load;
2202		3363
2203	# load extensions
2204	warn "load extensions";	3364	warn "loading extensions";
2205	cf::load_extensions;	3365	cf::load_extensions;
2206		3366
2207	# reattach attachments to objects	3367	warn "reattaching attachments to objects/players";
2208	warn "reattach";	3368	_global_reattach; # objects, sockets
2209	_global_reattach;	3369	warn "reattaching attachments to maps";
2210	reattach $_ for values %MAP;	3370	reattach $_ for values %MAP;
2211	};	3371	warn "reattaching attachments to players";
		3372	reattach $_ for values %PLAYER;
2212		3373
2213	if ($@) {	3374	warn "leaving sync_job";
		3375
		3376	1
		3377	} or do {
2214	warn $@;	3378	warn $@;
2215	warn "error while reloading, exiting.";	3379	warn "error while reloading, exiting.";
2216	exit 1;	3380	exit 1;
2217	}	3381	};
2218		3382
2219	warn "reloaded successfully";	3383	warn "reloaded";
2220	};	3384	};
2221		3385
2222	#############################################################################	3386	our $RELOAD_WATCHER; # used only during reload
2223		3387
2224	unless ($LINK_MAP) {	3388	sub reload_perl() {
2225	$LINK_MAP = cf::map::new;	3389	# doing reload synchronously and two reloads happen back-to-back,
		3390	# coro crashes during coro_state_free->destroy here.
2226		3391
2227	$LINK_MAP->width (41);	3392	$RELOAD_WATCHER ||= Event->timer (
2228	$LINK_MAP->height (41);	3393	reentrant => 0,
2229	$LINK_MAP->alloc;
2230	$LINK_MAP->path ("{link}");
2231	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2232	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2233
2234	# dirty hack because... archetypes are not yet loaded
2235	Event->timer (
2236	after => 10,	3394	after => 0,
		3395	data => WF_AUTOCANCEL,
2237	cb => sub {	3396	cb => sub {
2238	$_[0]->w->cancel;	3397	do_reload_perl;
2239		3398	undef $RELOAD_WATCHER;
2240	# provide some exits "home"
2241	my $exit = cf::object::new "exit";
2242
2243	$exit->slaying ($EMERGENCY_POSITION->[0]);
2244	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2245	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2246
2247	$LINK_MAP->insert ($exit->clone, 19, 19);
2248	$LINK_MAP->insert ($exit->clone, 19, 20);
2249	$LINK_MAP->insert ($exit->clone, 19, 21);
2250	$LINK_MAP->insert ($exit->clone, 20, 19);
2251	$LINK_MAP->insert ($exit->clone, 20, 21);
2252	$LINK_MAP->insert ($exit->clone, 21, 19);
2253	$LINK_MAP->insert ($exit->clone, 21, 20);
2254	$LINK_MAP->insert ($exit->clone, 21, 21);
2255
2256	$exit->destroy;
2257	});	3399	},
2258		3400	);
2259	$LINK_MAP->{deny_save} = 1;
2260	$LINK_MAP->{deny_reset} = 1;
2261
2262	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2263	}	3401	}
2264
2265	register "<global>", __PACKAGE__;
2266		3402
2267	register_command "reload" => sub {	3403	register_command "reload" => sub {
2268	my ($who, $arg) = @_;	3404	my ($who, $arg) = @_;
2269		3405
2270	if ($who->flag (FLAG_WIZ)) {	3406	if ($who->flag (FLAG_WIZ)) {
2271	$who->message ("start of reload.");
2272	reload;
2273	$who->message ("end of reload.");	3407	$who->message ("reloading server.");
		3408	async { reload_perl };
2274	}	3409	}
2275	};	3410	};
2276		3411
2277	unshift @INC, $LIBDIR;	3412	unshift @INC, $LIBDIR;
2278		3413
		3414	my $bug_warning = 0;
		3415
		3416	our @WAIT_FOR_TICK;
		3417	our @WAIT_FOR_TICK_BEGIN;
		3418
		3419	sub wait_for_tick {
		3420	return unless $TICK_WATCHER->is_active;
		3421	return if $Coro::current == $Coro::main;
		3422
		3423	my $signal = new Coro::Signal;
		3424	push @WAIT_FOR_TICK, $signal;
		3425	$signal->wait;
		3426	}
		3427
		3428	sub wait_for_tick_begin {
		3429	return unless $TICK_WATCHER->is_active;
		3430	return if $Coro::current == $Coro::main;
		3431
		3432	my $signal = new Coro::Signal;
		3433	push @WAIT_FOR_TICK_BEGIN, $signal;
		3434	$signal->wait;
		3435	}
		3436
		3437	my $min = 1e6;#d#
		3438	my $avg = 10;
2279	$TICK_WATCHER = Event->timer (	3439	$TICK_WATCHER = Event->timer (
2280	reentrant => 0,	3440	reentrant => 0,
		3441	parked => 1,
2281	prio => 0,	3442	prio => 0,
2282	at => $NEXT_TICK || $TICK,	3443	at => $NEXT_TICK || $TICK,
2283	data => WF_AUTOCANCEL,	3444	data => WF_AUTOCANCEL,
2284	cb => sub {	3445	cb => sub {
		3446	if ($Coro::current != $Coro::main) {
		3447	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3448	unless ++$bug_warning > 10;
		3449	return;
		3450	}
		3451
		3452	$NOW = $tick_start = Event::time;
		3453
2285	cf::server_tick; # one server iteration	3454	cf::server_tick; # one server iteration
		3455
		3456	0 && sync_job {#d#
		3457	for(1..10) {
		3458	my $t = Event::time;
		3459	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3460	or die;
		3461
		3462	$map->width (50);
		3463	$map->height (50);
		3464	$map->alloc;
		3465	$map->_load_objects ("/tmp/x.map", 1); #TODO: does not work
		3466	my $t = Event::time - $t;
		3467
		3468	#next unless $t < 0.0013;#d#
		3469	if ($t < $min) {
		3470	$min = $t;
		3471	}
		3472	$avg = $avg * 0.99 + $t * 0.01;
		3473	}
		3474	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3475	exit 0;
		3476	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
		3477	};
		3478
2286	$RUNTIME += $TICK;	3479	$RUNTIME += $TICK;
2287	$NEXT_TICK += $TICK;	3480	$NEXT_TICK += $TICK;
2288		3481
		3482	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3483	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3484	Coro::async_pool {
		3485	write_runtime
		3486	or warn "ERROR: unable to write runtime file: $!";
		3487	};
		3488	}
		3489
		3490	# my $AFTER = Event::time;
		3491	# warn $AFTER - $NOW;#d#
		3492
		3493	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3494	$sig->send;
		3495	}
		3496	while (my $sig = shift @WAIT_FOR_TICK) {
		3497	$sig->send;
		3498	}
		3499
		3500	$NOW = Event::time;
		3501
2289	# if we are delayed by four ticks or more, skip them all	3502	# if we are delayed by four ticks or more, skip them all
2290	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3503	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2291		3504
2292	$TICK_WATCHER->at ($NEXT_TICK);	3505	$TICK_WATCHER->at ($NEXT_TICK);
2293	$TICK_WATCHER->start;	3506	$TICK_WATCHER->start;
		3507
		3508	$LOAD = ($NOW - $tick_start) / $TICK;
		3509	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3510
		3511	_post_tick;
		3512
		3513
2294	},	3514	},
2295	);	3515	);
2296		3516
		3517	{
2297	IO::AIO::max_poll_time $TICK * 0.2;	3518	BDB::max_poll_time $TICK * 0.1;
2298		3519	$BDB_POLL_WATCHER = Event->io (
2299	Event->io (	3520	reentrant => 0,
2300	fd => IO::AIO::poll_fileno,	3521	fd => BDB::poll_fileno,
2301	poll => 'r',	3522	poll => 'r',
2302	prio => 5,	3523	prio => 0,
2303	data => WF_AUTOCANCEL,
2304	cb => \&IO::AIO::poll_cb,
2305	);
2306
2307	Event->timer (
2308	data => WF_AUTOCANCEL,	3524	data => WF_AUTOCANCEL,
2309	after => 0,	3525	cb => \&BDB::poll_cb,
2310	interval => 10,	3526	);
2311	cb => sub {	3527	BDB::min_parallel 8;
2312	(Coro::unblock_sub {	3528
2313	write_runtime	3529	BDB::set_sync_prepare {
2314	or warn "ERROR: unable to write runtime file: $!";	3530	my $status;
		3531	my $current = $Coro::current;
		3532	(
		3533	sub {
		3534	$status = $!;
		3535	$current->ready; undef $current;
		3536	},
		3537	sub {
		3538	Coro::schedule while defined $current;
		3539	$! = $status;
		3540	},
		3541	)
		3542	};
		3543
		3544	unless ($DB_ENV) {
		3545	$DB_ENV = BDB::db_env_create;
		3546
		3547	cf::sync_job {
		3548	eval {
		3549	BDB::db_env_open
		3550	$DB_ENV,
		3551	$BDBDIR,
		3552	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3553	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3554	0666;
		3555
		3556	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3557
		3558	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3559	$DB_ENV->set_lk_detect;
		3560	};
		3561
		3562	cf::cleanup "db_env_open(db): $@" if $@;
2315	})->();	3563	};
2316	},	3564	}
2317	);	3565	}
		3566
		3567	{
		3568	IO::AIO::min_parallel 8;
		3569
		3570	undef $Coro::AIO::WATCHER;
		3571	IO::AIO::max_poll_time $TICK * 0.1;
		3572	$AIO_POLL_WATCHER = Event->io (
		3573	reentrant => 0,
		3574	data => WF_AUTOCANCEL,
		3575	fd => IO::AIO::poll_fileno,
		3576	poll => 'r',
		3577	prio => 6,
		3578	cb => \&IO::AIO::poll_cb,
		3579	);
		3580	}
		3581
		3582	my $_log_backtrace;
		3583
		3584	sub _log_backtrace {
		3585	my ($msg, @addr) = @_;
		3586
		3587	$msg =~ s/\n//;
		3588
		3589	# limit the # of concurrent backtraces
		3590	if ($_log_backtrace < 2) {
		3591	++$_log_backtrace;
		3592	async {
		3593	my @bt = fork_call {
		3594	@addr = map { sprintf "%x", $_ } @addr;
		3595	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3596	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3597	or die "addr2line: $!";
		3598
		3599	my @funcs;
		3600	my @res = <$fh>;
		3601	chomp for @res;
		3602	while (@res) {
		3603	my ($func, $line) = splice @res, 0, 2, ();
		3604	push @funcs, "[$func] $line";
		3605	}
		3606
		3607	@funcs
		3608	};
		3609
		3610	LOG llevInfo, "[ABT] $msg\n";
		3611	LOG llevInfo, "[ABT] $_\n" for @bt;
		3612	--$_log_backtrace;
		3613	};
		3614	} else {
		3615	LOG llevInfo, "[ABT] $msg\n";
		3616	LOG llevInfo, "[ABT] [suppressed]\n";
		3617	}
		3618	}
		3619
		3620	# load additional modules
		3621	use cf::pod;
2318		3622
2319	END { cf::emergency_save }	3623	END { cf::emergency_save }
2320		3624
2321	1	3625	1
2322		3626

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