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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.150 by root, Mon Jan 8 19:25:53 2007 UTC vs.
Revision 1.373 by root, Sat Sep 15 15:58:06 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 $BDB_DEADLOCK_WATCHER;
		86	our $BDB_CHECKPOINT_WATCHER;
		87	our $BDB_TRICKLE_WATCHER;
		88	our $DB_ENV;
46		89
47	our %CFG;	90	our %CFG;
48		91
49	our $UPTIME; $UPTIME ||= time;	92	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	93	our $RUNTIME;
51		94
52	our %PLAYER; # all users	95	our (%PLAYER, %PLAYER_LOADING); # all users
53	our %MAP; # all maps	96	our (%MAP, %MAP_LOADING ); # all maps
54	our $LINK_MAP; # the special {link} map	97	our $LINK_MAP; # the special {link} map, which is always available
55	our $RANDOM_MAPS = cf::localdir . "/random";	98
56	our %EXT_CORO; # coroutines bound to extensions	99	# used to convert map paths into valid unix filenames by replacing / by ∕
		100	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		101
		102	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		103	our $LOADAVG; # same thing, but with alpha-smoothing
		104	our $tick_start; # for load detecting purposes
57		105
58	binmode STDOUT;	106	binmode STDOUT;
59	binmode STDERR;	107	binmode STDERR;
60		108
61	# read virtual server time, if available	109	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
66	}	114	}
67		115
68	mkdir cf::localdir;	116	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		118
74	# a special map that is always available
75	our $LINK_MAP;
76	our $EMERGENCY_POSITION;	119	our $EMERGENCY_POSITION;
		120
		121	sub cf::map::normalise;
77		122
78	#############################################################################	123	#############################################################################
79		124
80	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
81		126
…		…
88	=item $cf::RUNTIME	133	=item $cf::RUNTIME
89		134
90	The time this server has run, starts at 0 and is increased by $cf::TICK on	135	The time this server has run, starts at 0 and is increased by $cf::TICK on
91	every server tick.	136	every server tick.
92		137
93	=item $cf::LIBDIR	138	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		139	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		140	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
94		141
95	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
96	be found. It will be added to C<@INC> automatically.	143	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		144	unique-items directory, player file directory, random maps directory and
		145	database environment.
97		146
98	=item $cf::NOW	147	=item $cf::NOW
99		148
100	The time of the last (current) server tick.	149	The time of the last (current) server tick.
101		150
102	=item $cf::TICK	151	=item $cf::TICK
103		152
104	The interval between server ticks, in seconds.	153	The interval between server ticks, in seconds.
		154
		155	=item $cf::LOADAVG
		156
		157	The current CPU load on the server (alpha-smoothed), as a value between 0
		158	(none) and 1 (overloaded), indicating how much time is spent on processing
		159	objects per tick. Healthy values are < 0.5.
		160
		161	=item $cf::LOAD
		162
		163	The raw value load value from the last tick.
105		164
106	=item %cf::CFG	165	=item %cf::CFG
107		166
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/crossfire/config>, or
109	from wherever your confdir points to.	168	from wherever your confdir points to.
		169
		170	=item cf::wait_for_tick, cf::wait_for_tick_begin
		171
		172	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		173	returns directly I<after> the tick processing (and consequently, can only wake one process
		174	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		175
		176	=item @cf::INVOKE_RESULTS
		177
		178	This array contains the results of the last C<invoke ()> call. When
		179	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		180	that call.
110		181
111	=back	182	=back
112		183
113	=cut	184	=cut
114		185
115	BEGIN {	186	BEGIN {
116	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
117	my $msg = join "", @_;	188	my $msg = join "", @_;
118	utf8::encode $msg;
119		189
120	$msg .= "\n"	190	$msg .= "\n"
121	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
122		194
123	LOG llevError, $msg;	195	LOG llevError, $msg;
124	};	196	};
125	}	197	}
126		198
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
131	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	203	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		204	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
132	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	205	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
133		206
134	# we bless all objects into (empty) derived classes to force a method lookup	207	# we bless all objects into (empty) derived classes to force a method lookup
135	# within the Safe compartment.	208	# within the Safe compartment.
136	for my $pkg (qw(	209	for my $pkg (qw(
137	cf::global cf::attachable	210	cf::global cf::attachable
…		…
146		219
147	$Event::DIED = sub {	220	$Event::DIED = sub {
148	warn "error in event callback: @_";	221	warn "error in event callback: @_";
149	};	222	};
150		223
151	my %ext_pkg;	224	#############################################################################
152	my @exts;
153	my @hook;
154		225
155	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
156		227
157	=over 4	228	=over 4
158		229
159	=cut	230	=item dumpval $ref
160		231
161	use JSON::Syck (); # TODO# replace by JSON::PC once working	232	=cut
		233
		234	sub dumpval {
		235	eval {
		236	local $SIG{__DIE__};
		237	my $d;
		238	if (1) {
		239	$d = new Data::Dumper([$_[0]], ["*var"]);
		240	$d->Terse(1);
		241	$d->Indent(2);
		242	$d->Quotekeys(0);
		243	$d->Useqq(1);
		244	#$d->Bless(...);
		245	$d->Seen($_[1]) if @_ > 1;
		246	$d = $d->Dump();
		247	}
		248	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		249	$d
		250	} || "[unable to dump $_[0]: '$@']";
		251	}
162		252
163	=item $ref = cf::from_json $json	253	=item $ref = cf::from_json $json
164		254
165	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
166		256
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	257	=item $json = cf::to_json $ref
175		258
176	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
177		260
178	=cut	261	=cut
179		262
180	sub to_json($) {	263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	264
182	JSON::Syck::Dump $_[0]	265	sub to_json ($) { $json_coder->encode ($_[0]) }
183	}	266	sub from_json ($) { $json_coder->decode ($_[0]) }
184		267
185	=item cf::lock_wait $string	268	=item cf::lock_wait $string
186		269
187	Wait until the given lock is available. See cf::lock_acquire.	270	Wait until the given lock is available. See cf::lock_acquire.
188		271
…		…
191	Wait until the given lock is available and then acquires it and returns	274	Wait until the given lock is available and then acquires it and returns
192	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	275	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
193	for example when the coroutine gets canceled), the lock is automatically	276	for example when the coroutine gets canceled), the lock is automatically
194	returned.	277	returned.
195		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
196	Lock names should begin with a unique identifier (for example, cf::map::find	282	Lock names should begin with a unique identifier (for example, cf::map::find
197	uses map_find and cf::map::load uses map_load).	283	uses map_find and cf::map::load uses map_load).
198		284
		285	=item $locked = cf::lock_active $string
		286
		287	Return true if the lock is currently active, i.e. somebody has locked it.
		288
199	=cut	289	=cut
200		290
201	our %LOCK;	291	our %LOCK;
		292	our %LOCKER;#d#
202		293
203	sub lock_wait($) {	294	sub lock_wait($) {
204	my ($key) = @_;	295	my ($key) = @_;
		296
		297	if ($LOCKER{$key} == $Coro::current) {#d#
		298	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		299	return;#d#
		300	}#d#
205		301
206	# wait for lock, if any	302	# wait for lock, if any
207	while ($LOCK{$key}) {	303	while ($LOCK{$key}) {
208	push @{ $LOCK{$key} }, $Coro::current;	304	push @{ $LOCK{$key} }, $Coro::current;
209	Coro::schedule;	305	Coro::schedule;
…		…
215		311
216	# wait, to be sure we are not locked	312	# wait, to be sure we are not locked
217	lock_wait $key;	313	lock_wait $key;
218		314
219	$LOCK{$key} = [];	315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
220		317
221	Coro::guard {	318	Coro::guard {
		319	delete $LOCKER{$key};#d#
222	# wake up all waiters, to be on the safe side	320	# wake up all waiters, to be on the safe side
223	$_->ready for @{ delete $LOCK{$key} };	321	$_->ready for @{ delete $LOCK{$key} };
224	}	322	}
225	}	323	}
226		324
		325	sub lock_active($) {
		326	my ($key) = @_;
		327
		328	! ! $LOCK{$key}
		329	}
		330
227	sub freeze_mainloop {	331	sub freeze_mainloop {
228	return unless $TICK_WATCHER->is_active;	332	return unless $TICK_WATCHER->is_active;
229		333
230	my $guard = Coro::guard { $TICK_WATCHER->start };	334	my $guard = Coro::guard {
		335	$TICK_WATCHER->start;
		336	};
231	$TICK_WATCHER->stop;	337	$TICK_WATCHER->stop;
232	$guard	338	$guard
		339	}
		340
		341	=item cf::get_slot $time[, $priority[, $name]]
		342
		343	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		344	This call blocks and returns only when you have at least C<$time> seconds
		345	of cpu time till the next tick. The slot is only valid till the next cede.
		346
		347	The optional C<$name> can be used to identify the job to run. It might be
		348	used for statistical purposes and should identify the same time-class.
		349
		350	Useful for short background jobs.
		351
		352	=cut
		353
		354	our @SLOT_QUEUE;
		355	our $SLOT_QUEUE;
		356
		357	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		358	$SLOT_QUEUE = Coro::async {
		359	my $signal = new Coro::Signal;
		360
		361	while () {
		362	next_job:
		363	my $avail = cf::till_tick;
		364	if ($avail > 0.01) {
		365	for (0 .. $#SLOT_QUEUE) {
		366	if ($SLOT_QUEUE[$_][0] < $avail) {
		367	my $job = splice @SLOT_QUEUE, $_, 1, ();
		368	$job->[2]->send;
		369	Coro::cede;
		370	goto next_job;
		371	}
		372	}
		373	}
		374
		375	if (@SLOT_QUEUE) {
		376	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		377	push @cf::WAIT_FOR_TICK, $signal;
		378	$signal->wait;
		379	} else {
		380	Coro::schedule;
		381	}
		382	}
		383	};
		384
		385	sub get_slot($;$$) {
		386	my ($time, $pri, $name) = @_;
		387
		388	$time = $TICK * .6 if $time > $TICK * .6;
		389	my $sig = new Coro::Signal;
		390
		391	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		392	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		393	$SLOT_QUEUE->ready;
		394	$sig->wait;
233	}	395	}
234		396
235	=item cf::async { BLOCK }	397	=item cf::async { BLOCK }
236		398
237	Currently the same as Coro::async_pool, meaning you cannot use	399	Currently the same as Coro::async_pool, meaning you cannot use
…		…
242		404
243	BEGIN { *async = \&Coro::async_pool }	405	BEGIN { *async = \&Coro::async_pool }
244		406
245	=item cf::sync_job { BLOCK }	407	=item cf::sync_job { BLOCK }
246		408
247	The design of crossfire+ requires that the main coro ($Coro::main) is	409	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	410	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.	411	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		412	acceptable.
250		413
251	If it must be done, put the blocking parts into C<sync_job>. This will run	414	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	415	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	416	server will be frozen during this time, so the block should either finish
254	fast or be very important.	417	fast or be very important.
…		…
257		420
258	sub sync_job(&) {	421	sub sync_job(&) {
259	my ($job) = @_;	422	my ($job) = @_;
260		423
261	if ($Coro::current == $Coro::main) {	424	if ($Coro::current == $Coro::main) {
		425	my $time = Event::time;
		426
262	# this is the main coro, too bad, we have to block	427	# this is the main coro, too bad, we have to block
263	# till the operation succeeds, freezing the server :/	428	# till the operation succeeds, freezing the server :/
264		429
265	# TODO: use suspend/resume instead	430	# TODO: use suspend/resume instead
266	# (but this is cancel-safe)	431	# (but this is cancel-safe)
…		…
277		442
278	while ($busy) {	443	while ($busy) {
279	Coro::cede or Event::one_event;	444	Coro::cede or Event::one_event;
280	}	445	}
281		446
		447	$time = Event::time - $time;
		448
		449	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		450	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		451
		452	$tick_start += $time; # do not account sync jobs to server load
		453
282	wantarray ? @res : $res[0]	454	wantarray ? @res : $res[0]
283	} else {	455	} else {
284	# we are in another coroutine, how wonderful, everything just works	456	# we are in another coroutine, how wonderful, everything just works
285		457
286	$job->()	458	$job->()
287	}	459	}
288	}	460	}
289		461
290	=item $coro = cf::async_ext { BLOCK }	462	=item $coro = cf::async_ext { BLOCK }
291		463
292	Like async, but this coro is automcatially being canceled when the	464	Like async, but this coro is automatically being canceled when the
293	extension calling this is being unloaded.	465	extension calling this is being unloaded.
294		466
295	=cut	467	=cut
296		468
297	sub async_ext(&) {	469	sub async_ext(&) {
…		…
305	$EXT_CORO{$coro+0} = $coro;	477	$EXT_CORO{$coro+0} = $coro;
306		478
307	$coro	479	$coro
308	}	480	}
309		481
310	sub write_runtime {	482	=item fork_call { }, $args
311	my $runtime = cf::localdir . "/runtime";
312		483
313	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	484	Executes the given code block with the given arguments in a seperate
314	or return;	485	process, returning the results. Everything must be serialisable with
		486	Coro::Storable. May, of course, block. Note that the executed sub may
		487	never block itself or use any form of Event handling.
315		488
316	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	489	=cut
317	(aio_write $fh, 0, (length $value), $value, 0) <= 0
318	and return;
319		490
320	aio_fsync $fh	491	sub fork_call(&@) {
321	and return;	492	my ($cb, @args) = @_;
322		493
323	close $fh	494	# we seemingly have to make a local copy of the whole thing,
324	or return;	495	# otherwise perl prematurely frees the stuff :/
		496	# TODO: investigate and fix (likely this will be rather laborious)
325		497
326	aio_rename "$runtime~", $runtime	498	my @res = Coro::Util::fork_eval {
327	and return;	499	reset_signals;
		500	&$cb
		501	}, @args;
328		502
		503	wantarray ? @res : $res[-1]
		504	}
		505
		506	=item $value = cf::db_get $family => $key
		507
		508	Returns a single value from the environment database.
		509
		510	=item cf::db_put $family => $key => $value
		511
		512	Stores the given C<$value> in the family. It can currently store binary
		513	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		514
		515	=item $db = cf::db_table "name"
		516
		517	Create and/or open a new database table. The string must not be "db" and must be unique
		518	within each server.
		519
		520	=cut
		521
		522	sub db_table($) {
		523	my ($name) = @_;
		524	my $db = BDB::db_create $DB_ENV;
		525
		526	eval {
		527	$db->set_flags (BDB::CHKSUM);
		528
		529	utf8::encode $name;
		530	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		531	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		532	cf::cleanup "db_open(db): $!" if $!;
		533	};
		534	cf::cleanup "db_open(db): $@" if $@;
		535
		536	$db
		537	}
		538
		539	our $DB;
		540
		541	sub db_init {
		542	cf::sync_job {
		543	$DB ||= db_table "db";
		544	};
		545	}
		546
		547	sub db_get($$) {
		548	my $key = "$_[0]/$_[1]";
		549
		550	cf::sync_job {
		551	BDB::db_get $DB, undef, $key, my $data;
		552
		553	$! ? ()
		554	: $data
329	1	555	}
		556	}
		557
		558	sub db_put($$$) {
		559	BDB::dbreq_pri 4;
		560	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		561	}
		562
		563	=item cf::cache $id => [$paths...], $processversion => $process
		564
		565	Generic caching function that returns the value of the resource $id,
		566	caching and regenerating as required.
		567
		568	This function can block.
		569
		570	=cut
		571
		572	sub cache {
		573	my ($id, $src, $processversion, $process) = @_;
		574
		575	my $meta =
		576	join "\x00",
		577	$processversion,
		578	map {
		579	aio_stat $_
		580	and Carp::croak "$_: $!";
		581
		582	($_, (stat _)[7,9])
		583	} @$src;
		584
		585	my $dbmeta = db_get cache => "$id/meta";
		586	if ($dbmeta ne $meta) {
		587	# changed, we may need to process
		588
		589	my @data;
		590	my $md5;
		591
		592	for (0 .. $#$src) {
		593	0 <= aio_load $src->[$_], $data[$_]
		594	or Carp::croak "$src->[$_]: $!";
		595	}
		596
		597	# if processing is expensive, check
		598	# checksum first
		599	if (1) {
		600	$md5 =
		601	join "\x00",
		602	$processversion,
		603	map {
		604	cf::cede_to_tick;
		605	($src->[$_], Digest::MD5::md5_hex $data[$_])
		606	} 0.. $#$src;
		607
		608
		609	my $dbmd5 = db_get cache => "$id/md5";
		610	if ($dbmd5 eq $md5) {
		611	db_put cache => "$id/meta", $meta;
		612
		613	return db_get cache => "$id/data";
		614	}
		615	}
		616
		617	my $t1 = Time::HiRes::time;
		618	my $data = $process->(\@data);
		619	my $t2 = Time::HiRes::time;
		620
		621	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		622
		623	db_put cache => "$id/data", $data;
		624	db_put cache => "$id/md5" , $md5;
		625	db_put cache => "$id/meta", $meta;
		626
		627	return $data;
		628	}
		629
		630	db_get cache => "$id/data"
		631	}
		632
		633	=item cf::datalog type => key => value, ...
		634
		635	Log a datalog packet of the given type with the given key-value pairs.
		636
		637	=cut
		638
		639	sub datalog($@) {
		640	my ($type, %kv) = @_;
		641	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
330	}	642	}
331		643
332	=back	644	=back
333		645
334	=cut	646	=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		647
456	#############################################################################	648	#############################################################################
457		649
458	=head2 ATTACHABLE OBJECTS	650	=head2 ATTACHABLE OBJECTS
459		651
…		…
461	attach callbacks/event handlers (a collection of which is called an "attachment")	653	attach callbacks/event handlers (a collection of which is called an "attachment")
462	to it. All such attachable objects support the following methods.	654	to it. All such attachable objects support the following methods.
463		655
464	In the following description, CLASS can be any of C<global>, C<object>	656	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	657	C<player>, C<client> or C<map> (i.e. the attachable objects in
466	crossfire+).	658	Crossfire TRT).
467		659
468	=over 4	660	=over 4
469		661
470	=item $attachable->attach ($attachment, key => $value...)	662	=item $attachable->attach ($attachment, key => $value...)
471		663
…		…
585	our @CB_TYPE = (); # registry for type (cf-object class) based events	777	our @CB_TYPE = (); # registry for type (cf-object class) based events
586	our @CB_MAP = ();	778	our @CB_MAP = ();
587		779
588	my %attachment;	780	my %attachment;
589		781
		782	sub cf::attachable::thawer_merge {
		783	# simply override everything except _meta
		784	local $_[0]{_meta};
		785	%{$_[0]} = %{$_[1]};
		786	}
		787
590	sub _attach_cb($$$$) {	788	sub _attach_cb($$$$) {
591	my ($registry, $event, $prio, $cb) = @_;	789	my ($registry, $event, $prio, $cb) = @_;
592		790
593	use sort 'stable';	791	use sort 'stable';
594		792
…		…
628	$registry = $CB_TYPE[$object_type] ||= [];	826	$registry = $CB_TYPE[$object_type] ||= [];
629		827
630	} elsif ($type eq "subtype") {	828	} elsif ($type eq "subtype") {
631	defined $object_type or Carp::croak "subtype specified without type";	829	defined $object_type or Carp::croak "subtype specified without type";
632	my $object_subtype = shift @arg;	830	my $object_subtype = shift @arg;
633	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	831	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
634		832
635	} elsif ($type eq "package") {	833	} elsif ($type eq "package") {
636	my $pkg = shift @arg;	834	my $pkg = shift @arg;
637		835
638	while (my ($name, $id) = each %cb_id) {	836	while (my ($name, $id) = each %cb_id) {
…		…
667	_attach $registry, $klass, @attach;	865	_attach $registry, $klass, @attach;
668	}	866	}
669		867
670	$obj->{$name} = \%arg;	868	$obj->{$name} = \%arg;
671	} else {	869	} else {
672	warn "object uses attachment '$name' that is not available, postponing.\n";	870	warn "object uses attachment '$name' which is not available, postponing.\n";
673	}	871	}
674		872
675	$obj->{_attachment}{$name} = undef;	873	$obj->{_attachment}{$name} = undef;
676	}	874	}
677		875
…		…
679	if (ref $_[0]) {	877	if (ref $_[0]) {
680	_object_attach @_;	878	_object_attach @_;
681	} else {	879	} else {
682	_attach shift->_attach_registry, @_;	880	_attach shift->_attach_registry, @_;
683	}	881	}
		882	_recalc_want;
684	};	883	};
685		884
686	# all those should be optimised	885	# all those should be optimised
687	sub cf::attachable::detach {	886	sub cf::attachable::detach {
688	my ($obj, $name) = @_;	887	my ($obj, $name) = @_;
…		…
691	delete $obj->{_attachment}{$name};	890	delete $obj->{_attachment}{$name};
692	reattach ($obj);	891	reattach ($obj);
693	} else {	892	} else {
694	Carp::croak "cannot, currently, detach class attachments";	893	Carp::croak "cannot, currently, detach class attachments";
695	}	894	}
		895	_recalc_want;
696	};	896	};
697		897
698	sub cf::attachable::attached {	898	sub cf::attachable::attached {
699	my ($obj, $name) = @_;	899	my ($obj, $name) = @_;
700		900
…		…
715	";	915	";
716	die if $@;	916	die if $@;
717	}	917	}
718		918
719	our $override;	919	our $override;
720	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	920	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
721		921
722	sub override {	922	sub override {
723	$override = 1;	923	$override = 1;
724	@invoke_results = ();	924	@INVOKE_RESULTS = (@_);
725	}	925	}
726		926
727	sub do_invoke {	927	sub do_invoke {
728	my $event = shift;	928	my $event = shift;
729	my $callbacks = shift;	929	my $callbacks = shift;
730		930
731	@invoke_results = ();	931	@INVOKE_RESULTS = ();
732		932
733	local $override;	933	local $override;
734		934
735	for (@$callbacks) {	935	for (@$callbacks) {
736	eval { &{$_->[1]} };	936	eval { &{$_->[1]} };
…		…
753		953
754	Generate an object-specific event with the given arguments.	954	Generate an object-specific event with the given arguments.
755		955
756	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	956	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	957	removed in future versions), and there is no public API to access override
758	results (if you must, access C<@cf::invoke_results> directly).	958	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
759		959
760	=back	960	=back
761		961
762	=cut	962	=cut
763		963
764	#############################################################################	964	#############################################################################
765	# object support	965	# object support
		966	#
		967
		968	sub _can_merge {
		969	my ($ob1, $ob2) = @_;
		970
		971	local $Storable::canonical = 1;
		972	my $fob1 = Storable::freeze $ob1;
		973	my $fob2 = Storable::freeze $ob2;
		974
		975	$fob1 eq $fob2
		976	}
766		977
767	sub reattach {	978	sub reattach {
768	# basically do the same as instantiate, without calling instantiate	979	# basically do the same as instantiate, without calling instantiate
769	my ($obj) = @_;	980	my ($obj) = @_;
		981
		982	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
770		983
771	my $registry = $obj->registry;	984	my $registry = $obj->registry;
772		985
773	@$registry = ();	986	@$registry = ();
774		987
…		…
815	sub object_freezer_save {	1028	sub object_freezer_save {
816	my ($filename, $rdata, $objs) = @_;	1029	my ($filename, $rdata, $objs) = @_;
817		1030
818	sync_job {	1031	sync_job {
819	if (length $$rdata) {	1032	if (length $$rdata) {
		1033	utf8::decode (my $decname = $filename);
820	warn sprintf "saving %s (%d,%d)\n",	1034	warn sprintf "saving %s (%d,%d)\n",
821	$filename, length $$rdata, scalar @$objs;	1035	$decname, length $$rdata, scalar @$objs;
822		1036
823	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1037	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
824	chmod SAVE_MODE, $fh;	1038	chmod SAVE_MODE, $fh;
825	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1039	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
826	aio_fsync $fh;	1040	aio_fsync $fh if $cf::USE_FSYNC;
827	close $fh;	1041	close $fh;
828		1042
829	if (@$objs) {	1043	if (@$objs) {
830	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1044	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
831	chmod SAVE_MODE, $fh;	1045	chmod SAVE_MODE, $fh;
832	my $data = Storable::nfreeze { version => 1, objs => $objs };	1046	my $data = Storable::nfreeze { version => 1, objs => $objs };
833	aio_write $fh, 0, (length $data), $data, 0;	1047	aio_write $fh, 0, (length $data), $data, 0;
834	aio_fsync $fh;	1048	aio_fsync $fh if $cf::USE_FSYNC;
835	close $fh;	1049	close $fh;
836	aio_rename "$filename.pst~", "$filename.pst";	1050	aio_rename "$filename.pst~", "$filename.pst";
837	}	1051	}
838	} else {	1052	} else {
839	aio_unlink "$filename.pst";	1053	aio_unlink "$filename.pst";
…		…
845	}	1059	}
846	} else {	1060	} else {
847	aio_unlink $filename;	1061	aio_unlink $filename;
848	aio_unlink "$filename.pst";	1062	aio_unlink "$filename.pst";
849	}	1063	}
850	}	1064	};
851	}	1065	}
852		1066
853	sub object_freezer_as_string {	1067	sub object_freezer_as_string {
854	my ($rdata, $objs) = @_;	1068	my ($rdata, $objs) = @_;
855		1069
…		…
867	or return;	1081	or return;
868		1082
869	unless (aio_stat "$filename.pst") {	1083	unless (aio_stat "$filename.pst") {
870	(aio_load "$filename.pst", $av) >= 0	1084	(aio_load "$filename.pst", $av) >= 0
871	or return;	1085	or return;
		1086
872	$av = eval { (Storable::thaw $av)->{objs} };	1087	$av = eval { (Storable::thaw $av)->{objs} };
873	}	1088	}
874		1089
		1090	utf8::decode (my $decname = $filename);
875	warn sprintf "loading %s (%d)\n",	1091	warn sprintf "loading %s (%d,%d)\n",
876	$filename, length $data, scalar @{$av || []};#d#	1092	$decname, length $data, scalar @{$av || []};
		1093
877	return ($data, $av);	1094	($data, $av)
878	}	1095	}
		1096
		1097	=head2 COMMAND CALLBACKS
		1098
		1099	=over 4
		1100
		1101	=cut
879		1102
880	#############################################################################	1103	#############################################################################
881	# command handling &c	1104	# command handling &c
882		1105
883	=item cf::register_command $name => \&callback($ob,$args);	1106	=item cf::register_command $name => \&callback($ob,$args);
…		…
896	push @{ $COMMAND{$name} }, [$caller, $cb];	1119	push @{ $COMMAND{$name} }, [$caller, $cb];
897	}	1120	}
898		1121
899	=item cf::register_extcmd $name => \&callback($pl,$packet);	1122	=item cf::register_extcmd $name => \&callback($pl,$packet);
900		1123
901	Register a callbackf ro execution when the client sends an extcmd packet.	1124	Register a callback for execution when the client sends an (synchronous)
		1125	extcmd packet. Ext commands will be processed in the order they are
		1126	received by the server, like other user commands. The first argument is
		1127	the logged-in player. Ext commands can only be processed after a player
		1128	has logged in successfully.
902		1129
903	If the callback returns something, it is sent back as if reply was being	1130	If the callback returns something, it is sent back as if reply was being
904	called.	1131	called.
905		1132
		1133	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1134
		1135	Register a callback for execution when the client sends an (asynchronous)
		1136	exticmd packet. Exti commands are processed by the server as soon as they
		1137	are received, i.e. out of order w.r.t. other commands. The first argument
		1138	is a client socket. Exti commands can be received anytime, even before
		1139	log-in.
		1140
		1141	If the callback returns something, it is sent back as if reply was being
		1142	called.
		1143
906	=cut	1144	=cut
907		1145
908	sub register_extcmd {	1146	sub register_extcmd {
909	my ($name, $cb) = @_;	1147	my ($name, $cb) = @_;
910		1148
911	my $caller = caller;
912	#warn "registering extcmd '$name' to '$caller'";
913
914	$EXTCMD{$name} = [$cb, $caller];	1149	$EXTCMD{$name} = $cb;
		1150	}
		1151
		1152	sub register_exticmd {
		1153	my ($name, $cb) = @_;
		1154
		1155	$EXTICMD{$name} = $cb;
915	}	1156	}
916		1157
917	cf::player->attach (	1158	cf::player->attach (
918	on_command => sub {	1159	on_command => sub {
919	my ($pl, $name, $params) = @_;	1160	my ($pl, $name, $params) = @_;
…		…
928	cf::override;	1169	cf::override;
929	},	1170	},
930	on_extcmd => sub {	1171	on_extcmd => sub {
931	my ($pl, $buf) = @_;	1172	my ($pl, $buf) = @_;
932		1173
933	my $msg = eval { from_json $buf };	1174	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
934		1175
935	if (ref $msg) {	1176	if (ref $msg) {
		1177	my ($type, $reply, @payload) =
		1178	"ARRAY" eq ref $msg
		1179	? @$msg
		1180	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1181
		1182	my @reply;
		1183
936	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1184	if (my $cb = $EXTCMD{$type}) {
937	if (my %reply = $cb->[0]->($pl, $msg)) {	1185	@reply = $cb->($pl, @payload);
938	$pl->ext_reply ($msg->{msgid}, %reply);
939	}
940	}	1186	}
		1187
		1188	$pl->ext_reply ($reply, @reply)
		1189	if $reply;
		1190
941	} else {	1191	} else {
942	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1192	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
943	}	1193	}
944		1194
945	cf::override;	1195	cf::override;
946	},	1196	},
947	);	1197	);
948		1198
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 {	1199	sub load_extensions {
		1200	cf::sync_job {
		1201	my %todo;
		1202
1026	for my $ext (<$LIBDIR/*.ext>) {	1203	for my $path (<$LIBDIR/*.ext>) {
1027	next unless -r $ext;	1204	next unless -r $path;
1028	eval {	1205
1029	load_extension $ext;	1206	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1207	my $base = $1;
		1208	my $pkg = $1;
		1209	$pkg =~ s/[^[:word:]]/_/g;
		1210	$pkg = "ext::$pkg";
		1211
		1212	open my $fh, "<:utf8", $path
		1213	or die "$path: $!";
		1214
		1215	my $source = do { local $/; <$fh> };
		1216
		1217	my %ext = (
		1218	path => $path,
		1219	base => $base,
		1220	pkg => $pkg,
		1221	);
		1222
		1223	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1224	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1225
		1226	$ext{source} =
		1227	"package $pkg; use strict; use utf8;\n"
		1228	. "#line 1 \"$path\"\n{\n"
		1229	. $source
		1230	. "\n};\n1";
		1231
		1232	$todo{$base} = \%ext;
		1233	}
		1234
		1235	my %done;
		1236	while (%todo) {
		1237	my $progress;
		1238
		1239	while (my ($k, $v) = each %todo) {
		1240	for (split /,\s*/, $v->{meta}{depends}) {
		1241	goto skip
		1242	unless exists $done{$_};
		1243	}
		1244
		1245	warn "... loading '$k' into '$v->{pkg}'\n";
		1246
		1247	unless (eval $v->{source}) {
		1248	my $msg = $@ ? "$v->{path}: $@\n"
		1249	: "$v->{base}: extension inactive.\n";
		1250
		1251	if (exists $v->{meta}{mandatory}) {
		1252	warn $msg;
		1253	warn "mandatory extension failed to load, exiting.\n";
		1254	exit 1;
		1255	}
		1256
		1257	warn $msg;
		1258	}
		1259
		1260	$done{$k} = delete $todo{$k};
		1261	push @EXTS, $v->{pkg};
		1262	$progress = 1;
1030	1	1263	}
1031	} or warn "$ext not loaded: $@";	1264
		1265	skip:
		1266	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1267	unless $progress;
		1268	}
1032	}	1269	};
1033	}	1270	}
1034		1271
1035	#############################################################################	1272	#############################################################################
1036	# load/save/clean perl data associated with a map
1037		1273
1038	*cf::mapsupport::on_clean = sub {	1274	=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		1275
1073	=head2 CORE EXTENSIONS	1276	=head2 CORE EXTENSIONS
1074		1277
1075	Functions and methods that extend core crossfire objects.	1278	Functions and methods that extend core crossfire objects.
1076		1279
1077	=cut	1280	=cut
1078		1281
1079	package cf::player;	1282	package cf::player;
1080		1283
		1284	use Coro::AIO;
		1285
1081	=head3 cf::player	1286	=head3 cf::player
1082		1287
1083	=over 4	1288	=over 4
1084		1289
		1290	=item cf::player::num_playing
		1291
		1292	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1293
		1294	=cut
		1295
		1296	sub num_playing {
		1297	scalar grep
		1298	$_->ob->map
		1299	&& !$_->hidden
		1300	&& !$_->ob->flag (cf::FLAG_WIZ),
		1301	cf::player::list
		1302	}
		1303
1085	=item cf::player::find $login	1304	=item cf::player::find $login
1086		1305
1087	Returns the given player object, loading it if necessary (might block).	1306	Returns the given player object, loading it if necessary (might block).
1088		1307
1089	=cut	1308	=cut
1090		1309
1091	sub playerdir($) {	1310	sub playerdir($) {
1092	cf::localdir	1311	"$PLAYERDIR/"
1093	. "/"
1094	. cf::playerdir
1095	. "/"
1096	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1312	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1097	}	1313	}
1098		1314
1099	sub path($) {	1315	sub path($) {
1100	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1316	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1101		1317
1102	(playerdir $login) . "/$login.pl"	1318	(playerdir $login) . "/playerdata"
1103	}	1319	}
1104		1320
1105	sub find_active($) {	1321	sub find_active($) {
1106	$cf::PLAYER{$_[0]}	1322	$cf::PLAYER{$_[0]}
1107	and $cf::PLAYER{$_[0]}->active	1323	and $cf::PLAYER{$_[0]}->active
…		…
1110		1326
1111	sub exists($) {	1327	sub exists($) {
1112	my ($login) = @_;	1328	my ($login) = @_;
1113		1329
1114	$cf::PLAYER{$login}	1330	$cf::PLAYER{$login}
1115	or cf::sync_job { !aio_stat $login }	1331	or cf::sync_job { !aio_stat path $login }
1116	}	1332	}
1117		1333
1118	sub find($) {	1334	sub find($) {
1119	return $cf::PLAYER{$_[0]} || do {	1335	return $cf::PLAYER{$_[0]} || do {
1120	my $login = $_[0];	1336	my $login = $_[0];
1121		1337
1122	my $guard = cf::lock_acquire "user_find:$login";	1338	my $guard = cf::lock_acquire "user_find:$login";
1123		1339
1124	$cf::PLAYER{$login} ||= (load_pl path $login or return);	1340	$cf::PLAYER{$_[0]} || do {
		1341	# rename old playerfiles to new ones
		1342	#TODO: remove when no longer required
		1343	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1344	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1345	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1346	aio_unlink +(playerdir $login) . "/$login.pl";
		1347
		1348	my $f = new_from_file cf::object::thawer path $login
		1349	or return;
		1350
		1351	my $pl = cf::player::load_pl $f
		1352	or return;
		1353	local $cf::PLAYER_LOADING{$login} = $pl;
		1354	$f->resolve_delayed_derefs;
		1355	$cf::PLAYER{$login} = $pl
		1356	}
1125	};	1357	}
1126	}	1358	}
1127		1359
1128	sub save($) {	1360	sub save($) {
1129	my ($pl) = @_;	1361	my ($pl) = @_;
1130		1362
…		…
1133	my $path = path $pl;	1365	my $path = path $pl;
1134	my $guard = cf::lock_acquire "user_save:$path";	1366	my $guard = cf::lock_acquire "user_save:$path";
1135		1367
1136	return if $pl->{deny_save};	1368	return if $pl->{deny_save};
1137		1369
1138	Coro::AIO::aio_mkdir playerdir $pl, 0770;	1370	aio_mkdir playerdir $pl, 0770;
1139	$pl->{last_save} = $cf::RUNTIME;	1371	$pl->{last_save} = $cf::RUNTIME;
1140		1372
1141	$pl->save_pl ($path);	1373	$pl->save_pl ($path);
1142	Coro::cede;	1374	cf::cede_to_tick;
1143	}	1375	}
1144		1376
1145	sub new($) {	1377	sub new($) {
1146	my ($login) = @_;	1378	my ($login) = @_;
1147		1379
…		…
1153	$cf::PLAYER{$login} = $self;	1385	$cf::PLAYER{$login} = $self;
1154		1386
1155	$self	1387	$self
1156	}	1388	}
1157		1389
		1390	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1391
		1392	=cut
		1393
		1394	sub send_msg {
		1395	my $ns = shift->ns
		1396	or return;
		1397	$ns->send_msg (@_);
		1398	}
		1399
		1400	=item $pl->quit_character
		1401
		1402	Nukes the player without looking back. If logged in, the connection will
		1403	be destroyed. May block for a long time.
		1404
		1405	=cut
		1406
1158	sub quit_character {	1407	sub quit_character {
1159	my ($pl) = @_;	1408	my ($pl) = @_;
		1409
		1410	my $name = $pl->ob->name;
1160		1411
1161	$pl->{deny_save} = 1;	1412	$pl->{deny_save} = 1;
1162	$pl->password ("*"); # this should lock out the player until we nuked the dir	1413	$pl->password ("*"); # this should lock out the player until we nuked the dir
1163		1414
1164	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1415	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1166	$pl->invoke (cf::EVENT_PLAYER_QUIT);	1417	$pl->invoke (cf::EVENT_PLAYER_QUIT);
1167	$pl->ns->destroy if $pl->ns;	1418	$pl->ns->destroy if $pl->ns;
1168		1419
1169	my $path = playerdir $pl;	1420	my $path = playerdir $pl;
1170	my $temp = "$path~$cf::RUNTIME~deleting~";	1421	my $temp = "$path~$cf::RUNTIME~deleting~";
1171	Coro::AIO::aio_rename $path, $temp;	1422	aio_rename $path, $temp;
1172	delete $cf::PLAYER{$pl->ob->name};	1423	delete $cf::PLAYER{$pl->ob->name};
1173	$pl->destroy;	1424	$pl->destroy;
		1425
		1426	my $prefix = qr<^~\Q$name\E/>;
		1427
		1428	# nuke player maps
		1429	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1430
1174	IO::AIO::aio_rmtree $temp;	1431	IO::AIO::aio_rmtree $temp;
1175	}	1432	}
1176		1433
		1434	=item $pl->kick
		1435
		1436	Kicks a player out of the game. This destroys the connection.
		1437
		1438	=cut
		1439
		1440	sub kick {
		1441	my ($pl, $kicker) = @_;
		1442
		1443	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1444	$pl->killer ("kicked");
		1445	$pl->ns->destroy;
		1446	}
		1447
		1448	=item cf::player::list_logins
		1449
		1450	Returns am arrayref of all valid playernames in the system, can take a
		1451	while and may block, so not sync_job-capable, ever.
		1452
		1453	=cut
		1454
		1455	sub list_logins {
		1456	my $dirs = aio_readdir $PLAYERDIR
		1457	or return [];
		1458
		1459	my @logins;
		1460
		1461	for my $login (@$dirs) {
		1462	my $path = path $login;
		1463
		1464	# a .pst is a dead give-away for a valid player
		1465	unless (-e "$path.pst") {
		1466	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1467	aio_read $fh, 0, 512, my $buf, 0 or next;
		1468	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1469	}
		1470
		1471	utf8::decode $login;
		1472	push @logins, $login;
		1473	}
		1474
		1475	\@logins
		1476	}
		1477
		1478	=item $player->maps
		1479
		1480	Returns an arrayref of map paths that are private for this
		1481	player. May block.
		1482
		1483	=cut
		1484
		1485	sub maps($) {
		1486	my ($pl) = @_;
		1487
		1488	$pl = ref $pl ? $pl->ob->name : $pl;
		1489
		1490	my $files = aio_readdir playerdir $pl
		1491	or return;
		1492
		1493	my @paths;
		1494
		1495	for (@$files) {
		1496	utf8::decode $_;
		1497	next if /\.(?:pl|pst)$/;
		1498	next unless /^$PATH_SEP/o;
		1499
		1500	push @paths, cf::map::normalise "~$pl/$_";
		1501	}
		1502
		1503	\@paths
		1504	}
		1505
		1506	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1507
		1508	Expand crossfire pod fragments into protocol xml.
		1509
		1510	=cut
		1511
		1512	sub expand_cfpod {
		1513	((my $self), (local $_)) = @_;
		1514
		1515	# escape & and <
		1516	s/&/&amp;/g;
		1517	s/(?<![BIUGHT])</&lt;/g;
		1518
		1519	# this is buggy, it needs to properly take care of nested <'s
		1520
		1521	1 while
		1522	# replace B<>, I<>, U<> etc.
		1523	s/B<([^\>]*)>/<b>$1<\/b>/
		1524	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1525	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1526	|| s/T<([^\>]*)>/<big><b>$1<\/b><\/big>/
		1527	# replace G<male|female> tags
		1528	|| s{G<([^>|]*)\|([^>]*)>}{
		1529	$self->gender ? $2 : $1
		1530	}ge
		1531	# replace H<hint text>
		1532	|| s{H<([^\>]*)>}
		1533	{
		1534	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1535	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1536	"")
		1537	[$self->{hintmode}]
		1538	}ge;
		1539
		1540	# create single paragraphs (very hackish)
		1541	s/(?<=\S)\n(?=\w)/ /g;
		1542
		1543	# compress some whitespace
		1544	s/\s+\n/\n/g; # ws line-ends
		1545	s/\n\n+/\n/g; # double lines
		1546	s/^\n+//; # beginning lines
		1547	s/\n+$//; # ending lines
		1548
		1549	$_
		1550	}
		1551
		1552	sub hintmode {
		1553	$_[0]{hintmode} = $_[1] if @_ > 1;
		1554	$_[0]{hintmode}
		1555	}
		1556
1177	=item $player->ext_reply ($msgid, $msgtype, %msg)	1557	=item $player->ext_reply ($msgid, @msg)
1178		1558
1179	Sends an ext reply to the player.	1559	Sends an ext reply to the player.
1180		1560
1181	=cut	1561	=cut
1182		1562
1183	sub ext_reply($$$%) {	1563	sub ext_reply($$@) {
1184	my ($self, $id, %msg) = @_;	1564	my ($self, $id, @msg) = @_;
1185		1565
1186	$msg{msgid} = $id;	1566	$self->ns->ext_reply ($id, @msg)
1187
1188	$self->send ("ext " . cf::to_json \%msg);
1189	}	1567	}
1190		1568
1191	package cf;	1569	=item $player->ext_msg ($type, @msg)
		1570
		1571	Sends an ext event to the client.
		1572
		1573	=cut
		1574
		1575	sub ext_msg($$@) {
		1576	my ($self, $type, @msg) = @_;
		1577
		1578	$self->ns->ext_msg ($type, @msg);
		1579	}
		1580
		1581	=head3 cf::region
		1582
		1583	=over 4
		1584
		1585	=cut
		1586
		1587	package cf::region;
		1588
		1589	=item cf::region::find_by_path $path
		1590
		1591	Tries to decuce the likely region for a map knowing only its path.
		1592
		1593	=cut
		1594
		1595	sub find_by_path($) {
		1596	my ($path) = @_;
		1597
		1598	my ($match, $specificity);
		1599
		1600	for my $region (list) {
		1601	if ($region->{match} && $path =~ $region->{match}) {
		1602	($match, $specificity) = ($region, $region->specificity)
		1603	if $region->specificity > $specificity;
		1604	}
		1605	}
		1606
		1607	$match
		1608	}
1192		1609
1193	=back	1610	=back
1194
1195		1611
1196	=head3 cf::map	1612	=head3 cf::map
1197		1613
1198	=over 4	1614	=over 4
1199		1615
…		…
1202	package cf::map;	1618	package cf::map;
1203		1619
1204	use Fcntl;	1620	use Fcntl;
1205	use Coro::AIO;	1621	use Coro::AIO;
1206		1622
		1623	use overload
		1624	'""' => \&as_string,
		1625	fallback => 1;
		1626
1207	our $MAX_RESET = 3600;	1627	our $MAX_RESET = 3600;
1208	our $DEFAULT_RESET = 3000;	1628	our $DEFAULT_RESET = 3000;
1209		1629
1210	sub generate_random_map {	1630	sub generate_random_map {
1211	my ($path, $rmp) = @_;	1631	my ($self, $rmp) = @_;
1212
1213	# mit "rum" bekleckern, nicht	1632	# mit "rum" bekleckern, nicht
1214	cf::map::_create_random_map	1633	$self->_create_random_map (
1215	$path,
1216	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1634	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1217	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1635	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1218	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1636	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1219	$rmp->{exit_on_final_map},	1637	$rmp->{exit_on_final_map},
1220	$rmp->{xsize}, $rmp->{ysize},	1638	$rmp->{xsize}, $rmp->{ysize},
1221	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1639	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1222	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1640	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1223	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1641	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1224	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1642	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1225	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1643	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1226	(cf::region::find $rmp->{region})	1644	(cf::region::find $rmp->{region}), $rmp->{custom}
		1645	)
		1646	}
		1647
		1648	=item cf::map->register ($regex, $prio)
		1649
		1650	Register a handler for the map path matching the given regex at the
		1651	givne priority (higher is better, built-in handlers have priority 0, the
		1652	default).
		1653
		1654	=cut
		1655
		1656	sub register {
		1657	my (undef, $regex, $prio) = @_;
		1658	my $pkg = caller;
		1659
		1660	no strict;
		1661	push @{"$pkg\::ISA"}, __PACKAGE__;
		1662
		1663	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1664	}
		1665
		1666	# also paths starting with '/'
		1667	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1668
		1669	sub thawer_merge {
		1670	my ($self, $merge) = @_;
		1671
		1672	# we have to keep some variables in memory intact
		1673	local $self->{path};
		1674	local $self->{load_path};
		1675
		1676	$self->SUPER::thawer_merge ($merge);
		1677	}
		1678
		1679	sub normalise {
		1680	my ($path, $base) = @_;
		1681
		1682	$path = "$path"; # make sure its a string
		1683
		1684	$path =~ s/\.map$//;
		1685
		1686	# map plan:
		1687	#
		1688	# /! non-realised random map exit (special hack!)
		1689	# {... are special paths that are not being touched
		1690	# ?xxx/... are special absolute paths
		1691	# ?random/... random maps
		1692	# /... normal maps
		1693	# ~user/... per-player map of a specific user
		1694
		1695	$path =~ s/$PATH_SEP/\//go;
		1696
		1697	# treat it as relative path if it starts with
		1698	# something that looks reasonable
		1699	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1700	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1701
		1702	$base =~ s{[^/]+/?$}{};
		1703	$path = "$base/$path";
		1704	}
		1705
		1706	for ($path) {
		1707	redo if s{//}{/};
		1708	redo if s{/\.?/}{/};
		1709	redo if s{/[^/]+/\.\./}{/};
		1710	}
		1711
		1712	$path
		1713	}
		1714
		1715	sub new_from_path {
		1716	my (undef, $path, $base) = @_;
		1717
		1718	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1719
		1720	$path = normalise $path, $base;
		1721
		1722	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1723	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1724	my $self = bless cf::map::new, $pkg;
		1725	$self->{path} = $path; $self->path ($path);
		1726	$self->init; # pass $1 etc.
		1727	return $self;
		1728	}
		1729	}
		1730
		1731	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1732	()
		1733	}
		1734
		1735	sub init {
		1736	my ($self) = @_;
		1737
		1738	$self
		1739	}
		1740
		1741	sub as_string {
		1742	my ($self) = @_;
		1743
		1744	"$self->{path}"
		1745	}
		1746
		1747	# the displayed name, this is a one way mapping
		1748	sub visible_name {
		1749	&as_string
		1750	}
		1751
		1752	# the original (read-only) location
		1753	sub load_path {
		1754	my ($self) = @_;
		1755
		1756	"$MAPDIR/$self->{path}.map"
		1757	}
		1758
		1759	# the temporary/swap location
		1760	sub save_path {
		1761	my ($self) = @_;
		1762
		1763	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1764	"$TMPDIR/$path.map"
		1765	}
		1766
		1767	# the unique path, undef == no special unique path
		1768	sub uniq_path {
		1769	my ($self) = @_;
		1770
		1771	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1772	"$UNIQUEDIR/$path"
1227	}	1773	}
1228		1774
1229	# and all this just because we cannot iterate over	1775	# and all this just because we cannot iterate over
1230	# all maps in C++...	1776	# all maps in C++...
1231	sub change_all_map_light {	1777	sub change_all_map_light {
…		…
1233		1779
1234	$_->change_map_light ($change)	1780	$_->change_map_light ($change)
1235	for grep $_->outdoor, values %cf::MAP;	1781	for grep $_->outdoor, values %cf::MAP;
1236	}	1782	}
1237		1783
		1784	sub decay_objects {
		1785	my ($self) = @_;
		1786
		1787	return if $self->{deny_reset};
		1788
		1789	$self->do_decay_objects;
		1790	}
		1791
		1792	sub unlink_save {
		1793	my ($self) = @_;
		1794
		1795	utf8::encode (my $save = $self->save_path);
		1796	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1797	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1798	}
		1799
1238	sub try_load_header($) {	1800	sub load_header_from($) {
1239	my ($path) = @_;	1801	my ($self, $path) = @_;
1240		1802
1241	utf8::encode $path;	1803	utf8::encode $path;
1242	aio_open $path, O_RDONLY, 0	1804	my $f = new_from_file cf::object::thawer $path
1243	or return;	1805	or return;
1244		1806
1245	my $map = cf::map::new	1807	$self->_load_header ($f)
1246	or return;	1808	or return;
1247		1809
1248	# for better error messages only, will be overwritten	1810	local $MAP_LOADING{$self->{path}} = $self;
1249	$map->path ($path);	1811	$f->resolve_delayed_derefs;
1250		1812
1251	$map->load_header ($path)	1813	$self->{load_path} = $path;
		1814
		1815	1
		1816	}
		1817
		1818	sub load_header_orig {
		1819	my ($self) = @_;
		1820
		1821	$self->load_header_from ($self->load_path)
		1822	}
		1823
		1824	sub load_header_temp {
		1825	my ($self) = @_;
		1826
		1827	$self->load_header_from ($self->save_path)
		1828	}
		1829
		1830	sub prepare_temp {
		1831	my ($self) = @_;
		1832
		1833	$self->last_access ((delete $self->{last_access})
		1834	|| $cf::RUNTIME); #d#
		1835	# safety
		1836	$self->{instantiate_time} = $cf::RUNTIME
		1837	if $self->{instantiate_time} > $cf::RUNTIME;
		1838	}
		1839
		1840	sub prepare_orig {
		1841	my ($self) = @_;
		1842
		1843	$self->{load_original} = 1;
		1844	$self->{instantiate_time} = $cf::RUNTIME;
		1845	$self->last_access ($cf::RUNTIME);
		1846	$self->instantiate;
		1847	}
		1848
		1849	sub load_header {
		1850	my ($self) = @_;
		1851
		1852	if ($self->load_header_temp) {
		1853	$self->prepare_temp;
		1854	} else {
		1855	$self->load_header_orig
1252	or return;	1856	or return;
		1857	$self->prepare_orig;
		1858	}
1253		1859
1254	$map->{load_path} = $path;	1860	$self->{deny_reset} = 1
		1861	if $self->no_reset;
1255		1862
1256	$map	1863	$self->default_region (cf::region::find_by_path $self->{path})
		1864	unless $self->default_region;
		1865
		1866	1
1257	}	1867	}
1258		1868
1259	sub find;	1869	sub find;
1260	sub find {	1870	sub find {
1261	my ($path, $origin) = @_;	1871	my ($path, $origin) = @_;
1262		1872
1263	#warn "find<$path,$origin>\n";#d#
1264
1265	$path = new cf::path $path, $origin && $origin->path;	1873	$path = normalise $path, $origin && $origin->path;
1266	my $key = $path->as_string;
1267		1874
		1875	cf::lock_wait "map_data:$path";#d#remove
1268	cf::lock_wait "map_find:$key";	1876	cf::lock_wait "map_find:$path";
1269		1877
1270	$cf::MAP{$key} || do {	1878	$cf::MAP{$path} || do {
1271	my $guard = cf::lock_acquire "map_find:$key";	1879	my $guard1 = cf::lock_acquire "map_find:$path";
		1880	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1272		1881
1273	# do it the slow way	1882	my $map = new_from_path cf::map $path
1274	my $map = try_load_header $path->save_path;
1275
1276	Coro::cede;
1277
1278	if ($map) {
1279	$map->last_access ((delete $map->{last_access})
1280	|| $cf::RUNTIME); #d#
1281	# safety
1282	$map->{instantiate_time} = $cf::RUNTIME
1283	if $map->{instantiate_time} > $cf::RUNTIME;
1284	} else {
1285	if (my $rmp = $path->random_map_params) {
1286	$map = generate_random_map $key, $rmp;
1287	} else {
1288	$map = try_load_header $path->load_path;
1289	}
1290
1291	$map or return;	1883	or return;
1292		1884
1293	$map->{load_original} = 1;
1294	$map->{instantiate_time} = $cf::RUNTIME;
1295	$map->last_access ($cf::RUNTIME);
1296	$map->instantiate;
1297
1298	# per-player maps become, after loading, normal maps
1299	$map->per_player (0) if $path->{user_rel};
1300	}
1301
1302	$map->path ($key);
1303	$map->{path} = $path;
1304	$map->{last_save} = $cf::RUNTIME;	1885	$map->{last_save} = $cf::RUNTIME;
1305		1886
1306	Coro::cede;	1887	$map->load_header
		1888	or return;
1307		1889
1308	if ($map->should_reset) {	1890	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1891	# doing this can freeze the server in a sync job, obviously
		1892	#$cf::WAIT_FOR_TICK->wait;
		1893	undef $guard1;
		1894	undef $guard2;
1309	$map->reset;	1895	$map->reset;
1310	undef $guard;
1311	$map = find $path	1896	return find $path;
1312	or return;
1313	}	1897	}
1314		1898
1315	$cf::MAP{$key} = $map	1899	$cf::MAP{$path} = $map
1316	}	1900	}
1317	}	1901	}
		1902
		1903	sub pre_load { }
		1904	sub post_load { }
1318		1905
1319	sub load {	1906	sub load {
1320	my ($self) = @_;	1907	my ($self) = @_;
1321		1908
		1909	local $self->{deny_reset} = 1; # loading can take a long time
		1910
1322	my $path = $self->{path};	1911	my $path = $self->{path};
		1912
		1913	{
1323	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1914	my $guard = cf::lock_acquire "map_data:$path";
1324		1915
		1916	return unless $self->valid;
1325	return if $self->in_memory != cf::MAP_SWAPPED;	1917	return unless $self->in_memory == cf::MAP_SWAPPED;
1326		1918
1327	$self->in_memory (cf::MAP_LOADING);	1919	$self->in_memory (cf::MAP_LOADING);
1328		1920
1329	$self->alloc;	1921	$self->alloc;
1330	$self->load_objects ($self->{load_path}, 1)	1922
		1923	$self->pre_load;
		1924	cf::cede_to_tick;
		1925
		1926	my $f = new_from_file cf::object::thawer $self->{load_path};
		1927	$f->skip_block;
		1928	$self->_load_objects ($f)
1331	or return;	1929	or return;
1332		1930
1333	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1931	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1334	if delete $self->{load_original};	1932	if delete $self->{load_original};
1335		1933
1336	if (my $uniq = $path->uniq_path) {	1934	if (my $uniq = $self->uniq_path) {
1337	utf8::encode $uniq;	1935	utf8::encode $uniq;
1338	if (aio_open $uniq, O_RDONLY, 0) {	1936	unless (aio_stat $uniq) {
		1937	if (my $f = new_from_file cf::object::thawer $uniq) {
1339	$self->clear_unique_items;	1938	$self->clear_unique_items;
1340	$self->load_objects ($uniq, 0);	1939	$self->_load_objects ($f);
		1940	$f->resolve_delayed_derefs;
		1941	}
1341	}	1942	}
1342	}	1943	}
1343		1944
1344	Coro::cede;	1945	$f->resolve_delayed_derefs;
1345		1946
		1947	cf::cede_to_tick;
1346	# now do the right thing for maps	1948	# now do the right thing for maps
1347	$self->link_multipart_objects;	1949	$self->link_multipart_objects;
1348
1349	if ($self->{path}->is_style_map) {
1350	$self->{deny_save} = 1;
1351	$self->{deny_reset} = 1;
1352	} else {
1353	$self->fix_auto_apply;
1354	$self->decay_objects;
1355	$self->update_buttons;
1356	$self->set_darkness_map;
1357	$self->difficulty ($self->estimate_difficulty)	1950	$self->difficulty ($self->estimate_difficulty)
1358	unless $self->difficulty;	1951	unless $self->difficulty;
		1952	cf::cede_to_tick;
		1953
		1954	unless ($self->{deny_activate}) {
		1955	$self->decay_objects;
		1956	$self->fix_auto_apply;
		1957	$self->update_buttons;
		1958	cf::cede_to_tick;
		1959	$self->set_darkness_map;
		1960	cf::cede_to_tick;
1359	$self->activate;	1961	$self->activate;
1360	}	1962	}
1361		1963
1362	Coro::cede;	1964	$self->{last_save} = $cf::RUNTIME;
		1965	$self->last_access ($cf::RUNTIME);
1363		1966
1364	$self->in_memory (cf::MAP_IN_MEMORY);	1967	$self->in_memory (cf::MAP_IN_MEMORY);
		1968	}
		1969
		1970	$self->post_load;
		1971	}
		1972
		1973	sub customise_for {
		1974	my ($self, $ob) = @_;
		1975
		1976	return find "~" . $ob->name . "/" . $self->{path}
		1977	if $self->per_player;
		1978
		1979	# return find "?party/" . $ob->name . "/" . $self->{path}
		1980	# if $self->per_party;
		1981
		1982	$self
		1983	}
		1984
		1985	# find and load all maps in the 3x3 area around a map
		1986	sub load_neighbours {
		1987	my ($map) = @_;
		1988
		1989	my @neigh; # diagonal neighbours
		1990
		1991	for (0 .. 3) {
		1992	my $neigh = $map->tile_path ($_)
		1993	or next;
		1994	$neigh = find $neigh, $map
		1995	or next;
		1996	$neigh->load;
		1997
		1998	push @neigh,
		1999	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2000	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2001	}
		2002
		2003	for (grep defined $_->[0], @neigh) {
		2004	my ($path, $origin) = @$_;
		2005	my $neigh = find $path, $origin
		2006	or next;
		2007	$neigh->load;
		2008	}
1365	}	2009	}
1366		2010
1367	sub find_sync {	2011	sub find_sync {
1368	my ($path, $origin) = @_;	2012	my ($path, $origin) = @_;
1369		2013
1370	cf::sync_job { cf::map::find $path, $origin }	2014	cf::sync_job { find $path, $origin }
1371	}	2015	}
1372		2016
1373	sub do_load_sync {	2017	sub do_load_sync {
1374	my ($map) = @_;	2018	my ($map) = @_;
1375		2019
		2020	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2021	if $Coro::current == $Coro::main;
		2022
1376	cf::sync_job { $map->load };	2023	cf::sync_job { $map->load };
		2024	}
		2025
		2026	our %MAP_PREFETCH;
		2027	our $MAP_PREFETCHER = undef;
		2028
		2029	sub find_async {
		2030	my ($path, $origin, $load) = @_;
		2031
		2032	$path = normalise $path, $origin && $origin->{path};
		2033
		2034	if (my $map = $cf::MAP{$path}) {
		2035	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2036	}
		2037
		2038	$MAP_PREFETCH{$path} |= $load;
		2039
		2040	$MAP_PREFETCHER ||= cf::async {
		2041	while (%MAP_PREFETCH) {
		2042	while (my ($k, $v) = each %MAP_PREFETCH) {
		2043	if (my $map = find $k) {
		2044	$map->load if $v;
		2045	}
		2046
		2047	delete $MAP_PREFETCH{$k};
		2048	}
		2049	}
		2050	undef $MAP_PREFETCHER;
		2051	};
		2052	$MAP_PREFETCHER->prio (6);
		2053
		2054	()
1377	}	2055	}
1378		2056
1379	sub save {	2057	sub save {
1380	my ($self) = @_;	2058	my ($self) = @_;
1381		2059
1382	my $lock = cf::lock_acquire "map_data:" . $self->path;	2060	my $lock = cf::lock_acquire "map_data:$self->{path}";
1383		2061
1384	$self->{last_save} = $cf::RUNTIME;	2062	$self->{last_save} = $cf::RUNTIME;
1385		2063
1386	return unless $self->dirty;	2064	return unless $self->dirty;
1387		2065
1388	my $save = $self->{path}->save_path; utf8::encode $save;	2066	my $save = $self->save_path; utf8::encode $save;
1389	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2067	my $uniq = $self->uniq_path; utf8::encode $uniq;
1390		2068
1391	$self->{load_path} = $save;	2069	$self->{load_path} = $save;
1392		2070
1393	return if $self->{deny_save};	2071	return if $self->{deny_save};
1394		2072
…		…
1397	cf::async {	2075	cf::async {
1398	$_->contr->save for $self->players;	2076	$_->contr->save for $self->players;
1399	};	2077	};
1400		2078
1401	if ($uniq) {	2079	if ($uniq) {
1402	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2080	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1403	$self->save_objects ($uniq, cf::IO_UNIQUES);	2081	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1404	} else {	2082	} else {
1405	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2083	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1406	}	2084	}
1407	}	2085	}
1408		2086
1409	sub swap_out {	2087	sub swap_out {
1410	my ($self) = @_;	2088	my ($self) = @_;
1411		2089
1412	# save first because save cedes	2090	# save first because save cedes
1413	$self->save;	2091	$self->save;
1414		2092
1415	my $lock = cf::lock_acquire "map_data:" . $self->path;	2093	my $lock = cf::lock_acquire "map_data:$self->{path}";
1416		2094
1417	return if $self->players;	2095	return if $self->players;
1418	return if $self->in_memory != cf::MAP_IN_MEMORY;	2096	return if $self->in_memory != cf::MAP_IN_MEMORY;
1419	return if $self->{deny_save};	2097	return if $self->{deny_save};
1420		2098
		2099	$self->in_memory (cf::MAP_SWAPPED);
		2100
		2101	$self->deactivate;
		2102	$_->clear_links_to ($self) for values %cf::MAP;
1421	$self->clear;	2103	$self->clear;
1422	$self->in_memory (cf::MAP_SWAPPED);
1423	}	2104	}
1424		2105
1425	sub reset_at {	2106	sub reset_at {
1426	my ($self) = @_;	2107	my ($self) = @_;
1427		2108
1428	# TODO: safety, remove and allow resettable per-player maps	2109	# TODO: safety, remove and allow resettable per-player maps
1429	return 1e99 if $self->{path}{user_rel};
1430	return 1e99 if $self->{deny_reset};	2110	return 1e99 if $self->{deny_reset};
1431		2111
1432	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2112	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1433	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2113	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1434		2114
…		…
1439	my ($self) = @_;	2119	my ($self) = @_;
1440		2120
1441	$self->reset_at <= $cf::RUNTIME	2121	$self->reset_at <= $cf::RUNTIME
1442	}	2122	}
1443		2123
1444	sub unlink_save {
1445	my ($self) = @_;
1446
1447	utf8::encode (my $save = $self->{path}->save_path);
1448	aioreq_pri 3; IO::AIO::aio_unlink $save;
1449	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1450	}
1451
1452	sub rename {
1453	my ($self, $new_path) = @_;
1454
1455	$self->unlink_save;
1456
1457	delete $cf::MAP{$self->path};
1458	$self->{path} = new cf::path $new_path;
1459	$self->path ($self->{path}->as_string);
1460	$cf::MAP{$self->path} = $self;
1461
1462	$self->save;
1463	}
1464
1465	sub reset {	2124	sub reset {
1466	my ($self) = @_;	2125	my ($self) = @_;
1467		2126
1468	my $lock = cf::lock_acquire "map_data:" . $self->path;	2127	my $lock = cf::lock_acquire "map_data:$self->{path}";
1469		2128
1470	return if $self->players;	2129	return if $self->players;
1471	return if $self->{path}{user_rel};#d#
1472		2130
1473	warn "resetting map ", $self->path;#d#	2131	warn "resetting map ", $self->path;
		2132
		2133	$self->in_memory (cf::MAP_SWAPPED);
		2134
		2135	# need to save uniques path
		2136	unless ($self->{deny_save}) {
		2137	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2138
		2139	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2140	if $uniq;
		2141	}
1474		2142
1475	delete $cf::MAP{$self->path};	2143	delete $cf::MAP{$self->path};
1476		2144
		2145	$self->deactivate;
1477	$_->clear_links_to ($self) for values %cf::MAP;	2146	$_->clear_links_to ($self) for values %cf::MAP;
		2147	$self->clear;
1478		2148
1479	$self->unlink_save;	2149	$self->unlink_save;
1480	$self->destroy;	2150	$self->destroy;
1481	}	2151	}
1482		2152
1483	my $nuke_counter = "aaaa";	2153	my $nuke_counter = "aaaa";
1484		2154
1485	sub nuke {	2155	sub nuke {
1486	my ($self) = @_;	2156	my ($self) = @_;
1487		2157
		2158	{
		2159	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2160
		2161	delete $cf::MAP{$self->path};
		2162
		2163	$self->unlink_save;
		2164
		2165	bless $self, "cf::map";
		2166	delete $self->{deny_reset};
1488	$self->{deny_save} = 1;	2167	$self->{deny_save} = 1;
1489	$self->reset_timeout (1);	2168	$self->reset_timeout (1);
1490	$self->rename ("{nuke}/" . ($nuke_counter++));	2169	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2170
		2171	$cf::MAP{$self->path} = $self;
		2172	}
		2173
1491	$self->reset; # polite request, might not happen	2174	$self->reset; # polite request, might not happen
1492	}	2175	}
1493		2176
1494	sub customise_for {	2177	=item $maps = cf::map::tmp_maps
1495	my ($map, $ob) = @_;
1496		2178
1497	if ($map->per_player) {	2179	Returns an arrayref with all map paths of currently instantiated and saved
1498	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2180	maps. May block.
		2181
		2182	=cut
		2183
		2184	sub tmp_maps() {
1499	}	2185	[
1500		2186	map {
1501	$map	2187	utf8::decode $_;
		2188	/\.map$/
		2189	? normalise $_
		2190	: ()
		2191	} @{ aio_readdir $TMPDIR or [] }
		2192	]
1502	}	2193	}
1503		2194
1504	sub emergency_save {	2195	=item $maps = cf::map::random_maps
1505	my $freeze_guard = cf::freeze_mainloop;
1506		2196
1507	warn "enter emergency perl save\n";	2197	Returns an arrayref with all map paths of currently instantiated and saved
		2198	random maps. May block.
1508		2199
1509	cf::sync_job {	2200	=cut
1510	warn "begin emergency player save\n";
1511	$_->save for values %cf::PLAYER;
1512	warn "end emergency player save\n";
1513		2201
1514	warn "begin emergency map save\n";	2202	sub random_maps() {
1515	$_->save for values %cf::MAP;	2203	[
1516	warn "end emergency map save\n";	2204	map {
1517	};	2205	utf8::decode $_;
		2206	/\.map$/
		2207	? normalise "?random/$_"
		2208	: ()
		2209	} @{ aio_readdir $RANDOMDIR or [] }
		2210	]
		2211	}
1518		2212
1519	warn "leave emergency perl save\n";	2213	=item cf::map::unique_maps
		2214
		2215	Returns an arrayref of paths of all shared maps that have
		2216	instantiated unique items. May block.
		2217
		2218	=cut
		2219
		2220	sub unique_maps() {
		2221	[
		2222	map {
		2223	utf8::decode $_;
		2224	/\.map$/
		2225	? normalise $_
		2226	: ()
		2227	} @{ aio_readdir $UNIQUEDIR or [] }
		2228	]
1520	}	2229	}
1521		2230
1522	package cf;	2231	package cf;
1523		2232
1524	=back	2233	=back
1525		2234
		2235	=head3 cf::object
		2236
		2237	=cut
		2238
		2239	package cf::object;
		2240
		2241	=over 4
		2242
		2243	=item $ob->inv_recursive
		2244
		2245	Returns the inventory of the object _and_ their inventories, recursively.
		2246
		2247	=cut
		2248
		2249	sub inv_recursive_;
		2250	sub inv_recursive_ {
		2251	map { $_, inv_recursive_ $_->inv } @_
		2252	}
		2253
		2254	sub inv_recursive {
		2255	inv_recursive_ inv $_[0]
		2256	}
		2257
		2258	=item $ref = $ob->ref
		2259
		2260	creates and returns a persistent reference to an objetc that can be stored as a string.
		2261
		2262	=item $ob = cf::object::deref ($refstring)
		2263
		2264	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2265	even if the object actually exists. May block.
		2266
		2267	=cut
		2268
		2269	sub deref {
		2270	my ($ref) = @_;
		2271
		2272	# temporary compatibility#TODO#remove
		2273	$ref =~ s{^<}{player/<};
		2274
		2275	if ($ref =~ m{^player\/(<1\.\d+>)/(.*)$}) {
		2276	my ($uuid, $name) = ($1, $2);
		2277	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2278	or return;
		2279	$pl->ob->uuid eq $uuid
		2280	or return;
		2281
		2282	$pl->ob
		2283	} else {
		2284	warn "$ref: cannot resolve object reference\n";
		2285	undef
		2286	}
		2287	}
		2288
		2289	package cf;
		2290
		2291	=back
1526		2292
1527	=head3 cf::object::player	2293	=head3 cf::object::player
1528		2294
1529	=over 4	2295	=over 4
1530		2296
…		…
1544		2310
1545	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2311	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1546		2312
1547	if ($self->{record_replies}) {	2313	if ($self->{record_replies}) {
1548	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2314	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2315
1549	} else {	2316	} else {
		2317	my $pl = $self->contr;
		2318
		2319	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2320	my $dialog = $pl->{npc_dialog};
		2321	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2322
		2323	} else {
1550	$msg = $npc->name . " says: $msg" if $npc;	2324	$msg = $npc->name . " says: $msg" if $npc;
1551	$self->message ($msg, $flags);	2325	$self->message ($msg, $flags);
		2326	}
1552	}	2327	}
		2328	}
		2329
		2330	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2331
		2332	=cut
		2333
		2334	sub cf::object::send_msg {
		2335	my $pl = shift->contr
		2336	or return;
		2337	$pl->send_msg (@_);
1553	}	2338	}
1554		2339
1555	=item $player_object->may ("access")	2340	=item $player_object->may ("access")
1556		2341
1557	Returns wether the given player is authorized to access resource "access"	2342	Returns wether the given player is authorized to access resource "access"
…		…
1570		2355
1571	=item $player_object->enter_link	2356	=item $player_object->enter_link
1572		2357
1573	Freezes the player and moves him/her to a special map (C<{link}>).	2358	Freezes the player and moves him/her to a special map (C<{link}>).
1574		2359
1575	The player should be reaosnably safe there for short amounts of time. You	2360	The player should be reasonably safe there for short amounts of time. You
1576	I<MUST> call C<leave_link> as soon as possible, though.	2361	I<MUST> call C<leave_link> as soon as possible, though.
1577		2362
		2363	Will never block.
		2364
1578	=item $player_object->leave_link ($map, $x, $y)	2365	=item $player_object->leave_link ($map, $x, $y)
1579		2366
1580	Moves the player out of the specila link map onto the given map. If the	2367	Moves the player out of the special C<{link}> map onto the specified
1581	map is not valid (or omitted), the player will be moved back to the	2368	map. If the map is not valid (or omitted), the player will be moved back
1582	location he/she was before the call to C<enter_link>, or, if that fails,	2369	to the location he/she was before the call to C<enter_link>, or, if that
1583	to the emergency map position.	2370	fails, to the emergency map position.
1584		2371
1585	Might block.	2372	Might block.
1586		2373
1587	=cut	2374	=cut
		2375
		2376	sub link_map {
		2377	unless ($LINK_MAP) {
		2378	$LINK_MAP = cf::map::find "{link}"
		2379	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2380	$LINK_MAP->load;
		2381	}
		2382
		2383	$LINK_MAP
		2384	}
1588		2385
1589	sub cf::object::player::enter_link {	2386	sub cf::object::player::enter_link {
1590	my ($self) = @_;	2387	my ($self) = @_;
1591		2388
1592	$self->deactivate_recursive;	2389	$self->deactivate_recursive;
1593		2390
1594	return if $self->map == $LINK_MAP;	2391	return if UNIVERSAL::isa $self->map, "ext::map_link";
1595		2392
1596	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2393	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1597	if $self->map;	2394	if $self->map && $self->map->{path} ne "{link}";
1598		2395
1599	$self->enter_map ($LINK_MAP, 20, 20);	2396	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1600	}	2397	}
1601		2398
1602	sub cf::object::player::leave_link {	2399	sub cf::object::player::leave_link {
1603	my ($self, $map, $x, $y) = @_;	2400	my ($self, $map, $x, $y) = @_;
		2401
		2402	return unless $self->contr->active;
1604		2403
1605	my $link_pos = delete $self->{_link_pos};	2404	my $link_pos = delete $self->{_link_pos};
1606		2405
1607	unless ($map) {	2406	unless ($map) {
1608	# restore original map position	2407	# restore original map position
…		…
1622	# use -1 or undef as default coordinates, not 0, 0	2421	# use -1 or undef as default coordinates, not 0, 0
1623	($x, $y) = ($map->enter_x, $map->enter_y)	2422	($x, $y) = ($map->enter_x, $map->enter_y)
1624	if $x <=0 && $y <= 0;	2423	if $x <=0 && $y <= 0;
1625		2424
1626	$map->load;	2425	$map->load;
		2426	$map->load_neighbours;
1627		2427
1628	return unless $self->contr->active;	2428	return unless $self->contr->active;
1629	$self->activate_recursive;	2429	$self->activate_recursive;
		2430
		2431	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1630	$self->enter_map ($map, $x, $y);	2432	$self->enter_map ($map, $x, $y);
1631	}	2433	}
1632		2434
1633	cf::player->attach (	2435	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1634	on_logout => sub {
1635	my ($pl) = @_;
1636		2436
1637	# abort map switching before logout	2437	Moves the player to the given map-path and coordinates by first freezing
1638	if ($pl->ob->{_link_pos}) {	2438	her, loading and preparing them map, calling the provided $check callback
1639	cf::sync_job {	2439	that has to return the map if sucecssful, and then unfreezes the player on
1640	$pl->ob->leave_link	2440	the new (success) or old (failed) map position. In either case, $done will
1641	};	2441	be called at the end of this process.
1642	}
1643	},
1644	on_login => sub {
1645	my ($pl) = @_;
1646		2442
1647	# try to abort aborted map switching on player login :)
1648	# should happen only on crashes
1649	if ($pl->ob->{_link_pos}) {
1650	$pl->ob->enter_link;
1651	(async {
1652	# we need this sleep as the login has a concurrent enter_exit running
1653	# and this sleep increases chances of the player not ending up in scorn
1654	$pl->ob->reply (undef,
1655	"There was an internal problem at your last logout, "
1656	. "the server will try to bring you to your intended destination in a second.",
1657	cf::NDI_RED);
1658	Coro::Timer::sleep 1;
1659	$pl->ob->leave_link;
1660	})->prio (2);
1661	}
1662	},
1663	);
1664
1665	=item $player_object->goto ($path, $x, $y)
1666
1667	=cut	2443	=cut
		2444
		2445	our $GOTOGEN;
1668		2446
1669	sub cf::object::player::goto {	2447	sub cf::object::player::goto {
1670	my ($self, $path, $x, $y) = @_;	2448	my ($self, $path, $x, $y, $check, $done) = @_;
		2449
		2450	# do generation counting so two concurrent goto's will be executed in-order
		2451	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1671		2452
1672	$self->enter_link;	2453	$self->enter_link;
1673		2454
1674	(async {	2455	(async {
1675	$path = new cf::path $path;	2456	# *tag paths override both path and x|y
		2457	if ($path =~ /^\*(.*)$/) {
		2458	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2459	my $ob = $obs[rand @obs];
1676		2460
1677	my $map = cf::map::find $path->as_string;	2461	# see if we actually can go there
		2462	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2463	$ob = $obs[rand @obs];
		2464	} else {
		2465	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2466	}
		2467	# else put us there anyways for now #d#
		2468
		2469	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2470	} else {
		2471	($path, $x, $y) = (undef, undef, undef);
		2472	}
		2473	}
		2474
		2475	my $map = eval {
		2476	my $map = defined $path ? cf::map::find $path : undef;
		2477
		2478	if ($map) {
1678	$map = $map->customise_for ($self) if $map;	2479	$map = $map->customise_for ($self);
1679		2480	$map = $check->($map) if $check && $map;
1680	# warn "entering ", $map->path, " at ($x, $y)\n"	2481	} else {
1681	# if $map;
1682
1683	$map or $map->cluck ("oy");#d#
1684	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2482	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2483	}
1685		2484
		2485	$map
		2486	};
		2487
		2488	if ($@) {
		2489	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2490	LOG llevError | logBacktrace, Carp::longmess $@;
		2491	}
		2492
		2493	if ($gen == $self->{_goto_generation}) {
		2494	delete $self->{_goto_generation};
1686	$self->leave_link ($map, $x, $y);	2495	$self->leave_link ($map, $x, $y);
		2496	}
		2497
		2498	$done->() if $done;
1687	})->prio (1);	2499	})->prio (1);
1688	}	2500	}
1689		2501
1690	=item $player_object->enter_exit ($exit_object)	2502	=item $player_object->enter_exit ($exit_object)
1691		2503
…		…
1693		2505
1694	sub parse_random_map_params {	2506	sub parse_random_map_params {
1695	my ($spec) = @_;	2507	my ($spec) = @_;
1696		2508
1697	my $rmp = { # defaults	2509	my $rmp = { # defaults
1698	xsize => 10,	2510	xsize => (cf::rndm 15, 40),
1699	ysize => 10,	2511	ysize => (cf::rndm 15, 40),
		2512	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2513	#layout => string,
1700	};	2514	};
1701		2515
1702	for (split /\n/, $spec) {	2516	for (split /\n/, $spec) {
1703	my ($k, $v) = split /\s+/, $_, 2;	2517	my ($k, $v) = split /\s+/, $_, 2;
1704		2518
…		…
1708	$rmp	2522	$rmp
1709	}	2523	}
1710		2524
1711	sub prepare_random_map {	2525	sub prepare_random_map {
1712	my ($exit) = @_;	2526	my ($exit) = @_;
		2527
		2528	my $guard = cf::lock_acquire "exit_prepare:$exit";
1713		2529
1714	# all this does is basically replace the /! path by	2530	# all this does is basically replace the /! path by
1715	# a new random map path (?random/...) with a seed	2531	# a new random map path (?random/...) with a seed
1716	# that depends on the exit object	2532	# that depends on the exit object
1717		2533
1718	my $rmp = parse_random_map_params $exit->msg;	2534	my $rmp = parse_random_map_params $exit->msg;
1719		2535
1720	if ($exit->map) {	2536	if ($exit->map) {
1721	$rmp->{region} = $exit->map->region_name;	2537	$rmp->{region} = $exit->region->name;
1722	$rmp->{origin_map} = $exit->map->path;	2538	$rmp->{origin_map} = $exit->map->path;
1723	$rmp->{origin_x} = $exit->x;	2539	$rmp->{origin_x} = $exit->x;
1724	$rmp->{origin_y} = $exit->y;	2540	$rmp->{origin_y} = $exit->y;
1725	}	2541	}
1726		2542
1727	$rmp->{random_seed} ||= $exit->random_seed;	2543	$rmp->{random_seed} ||= $exit->random_seed;
1728		2544
1729	my $data = cf::to_json $rmp;	2545	my $data = cf::to_json $rmp;
1730	my $md5 = Digest::MD5::md5_hex $data;	2546	my $md5 = Digest::MD5::md5_hex $data;
		2547	my $meta = "$RANDOMDIR/$md5.meta";
1731		2548
1732	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2549	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1733	aio_write $fh, 0, (length $data), $data, 0;	2550	aio_write $fh, 0, (length $data), $data, 0;
		2551	undef $fh;
		2552	aio_rename "$meta~", $meta;
1734		2553
1735	$exit->slaying ("?random/$md5");	2554	$exit->slaying ("?random/$md5");
1736	$exit->msg (undef);	2555	$exit->msg (undef);
1737	}	2556	}
1738	}	2557	}
…		…
1740	sub cf::object::player::enter_exit {	2559	sub cf::object::player::enter_exit {
1741	my ($self, $exit) = @_;	2560	my ($self, $exit) = @_;
1742		2561
1743	return unless $self->type == cf::PLAYER;	2562	return unless $self->type == cf::PLAYER;
1744		2563
		2564	if ($exit->slaying eq "/!") {
		2565	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2566	# the problem is that $exit might not survive long enough
		2567	# so it needs to be done right now, right here
		2568	cf::sync_job { prepare_random_map $exit };
		2569	}
		2570
		2571	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2572	my $hp = $exit->stats->hp;
		2573	my $sp = $exit->stats->sp;
		2574
1745	$self->enter_link;	2575	$self->enter_link;
		2576
		2577	# if exit is damned, update players death & WoR home-position
		2578	$self->contr->savebed ($slaying, $hp, $sp)
		2579	if $exit->flag (FLAG_DAMNED);
1746		2580
1747	(async {	2581	(async {
1748	$self->deactivate_recursive; # just to be sure	2582	$self->deactivate_recursive; # just to be sure
1749	unless (eval {	2583	unless (eval {
1750	prepare_random_map $exit	2584	$self->goto ($slaying, $hp, $sp);
1751	if $exit->slaying eq "/!";
1752
1753	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1754	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1755		2585
1756	1;	2586	1;
1757	}) {	2587	}) {
1758	$self->message ("Something went wrong deep within the crossfire server. "	2588	$self->message ("Something went wrong deep within the crossfire server. "
1759	. "I'll try to bring you back to the map you were before. "	2589	. "I'll try to bring you back to the map you were before. "
1760	. "Please report this to the dungeon master",	2590	. "Please report this to the dungeon master!",
1761	cf::NDI_UNIQUE | cf::NDI_RED);	2591	cf::NDI_UNIQUE | cf::NDI_RED);
1762		2592
1763	warn "ERROR in enter_exit: $@";	2593	warn "ERROR in enter_exit: $@";
1764	$self->leave_link;	2594	$self->leave_link;
1765	}	2595	}
1766	})->prio (1);	2596	})->prio (1);
…		…
1779		2609
1780	sub cf::client::send_drawinfo {	2610	sub cf::client::send_drawinfo {
1781	my ($self, $text, $flags) = @_;	2611	my ($self, $text, $flags) = @_;
1782		2612
1783	utf8::encode $text;	2613	utf8::encode $text;
1784	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2614	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1785	}	2615	}
1786		2616
		2617	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2618
		2619	Send a drawinfo or msg packet to the client, formatting the msg for the
		2620	client if neccessary. C<$type> should be a string identifying the type of
		2621	the message, with C<log> being the default. If C<$color> is negative, suppress
		2622	the message unless the client supports the msg packet.
		2623
		2624	=cut
		2625
		2626	our %CHANNEL = (
		2627	"c/identify" => {
		2628	id => "identify",
		2629	title => "Identify",
		2630	reply => undef,
		2631	tooltip => "Items recently identified",
		2632	},
		2633	"c/examine" => {
		2634	id => "examine",
		2635	title => "Examine",
		2636	reply => undef,
		2637	tooltip => "Signs and other items you examined",
		2638	},
		2639	);
		2640
		2641	sub cf::client::send_msg {
		2642	my ($self, $channel, $msg, $color, @extra) = @_;
		2643
		2644	$msg = $self->pl->expand_cfpod ($msg);
		2645
		2646	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2647
		2648	# check predefined channels, for the benefit of C
		2649	$channel = $CHANNEL{$channel} if $CHANNEL{$channel};
		2650
		2651	if (ref $channel) {
		2652	# send meta info to client, if not yet sent
		2653	unless (exists $self->{channel}{$channel->{id}}) {
		2654	$self->{channel}{$channel->{id}} = $channel;
		2655	$self->ext_msg (channel_info => $channel)
		2656	if $self->can_msg;
		2657	}
		2658
		2659	$channel = $channel->{id};
		2660	}
		2661
		2662	return unless @extra || length $msg;
		2663
		2664	if ($self->can_msg) {
		2665	# default colour, mask it out
		2666	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2667	if $color & cf::NDI_DEF;
		2668
		2669	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2670	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2671	} else {
		2672	if ($color >= 0) {
		2673	# replace some tags by gcfclient-compatible ones
		2674	for ($msg) {
		2675	1 while
		2676	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2677	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2678	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2679	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2680	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2681	}
		2682
		2683	$color &= cf::NDI_COLOR_MASK;
		2684
		2685	utf8::encode $msg;
		2686
		2687	if (0 && $msg =~ /\[/) {
		2688	# COMMAND/INFO
		2689	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2690	} else {
		2691	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2692	$self->send_packet ("drawinfo $color $msg")
		2693	}
		2694	}
		2695	}
		2696	}
		2697
		2698	=item $client->ext_msg ($type, @msg)
		2699
		2700	Sends an ext event to the client.
		2701
		2702	=cut
		2703
		2704	sub cf::client::ext_msg($$@) {
		2705	my ($self, $type, @msg) = @_;
		2706
		2707	if ($self->extcmd == 2) {
		2708	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2709	} elsif ($self->extcmd == 1) { # TODO: remove
		2710	push @msg, msgtype => "event_$type";
		2711	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2712	}
		2713	}
		2714
		2715	=item $client->ext_reply ($msgid, @msg)
		2716
		2717	Sends an ext reply to the client.
		2718
		2719	=cut
		2720
		2721	sub cf::client::ext_reply($$@) {
		2722	my ($self, $id, @msg) = @_;
		2723
		2724	if ($self->extcmd == 2) {
		2725	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2726	} elsif ($self->extcmd == 1) {
		2727	#TODO: version 1, remove
		2728	unshift @msg, msgtype => "reply", msgid => $id;
		2729	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2730	}
		2731	}
1787		2732
1788	=item $success = $client->query ($flags, "text", \&cb)	2733	=item $success = $client->query ($flags, "text", \&cb)
1789		2734
1790	Queues a query to the client, calling the given callback with	2735	Queues a query to the client, calling the given callback with
1791	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2736	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1792	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2737	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1793		2738
1794	Queries can fail, so check the return code. Or don't, as queries will become	2739	Queries can fail, so check the return code. Or don't, as queries will
1795	reliable at some point in the future.	2740	become reliable at some point in the future.
1796		2741
1797	=cut	2742	=cut
1798		2743
1799	sub cf::client::query {	2744	sub cf::client::query {
1800	my ($self, $flags, $text, $cb) = @_;	2745	my ($self, $flags, $text, $cb) = @_;
…		…
1808	utf8::encode $text;	2753	utf8::encode $text;
1809	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2754	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1810		2755
1811	$self->send_packet ($self->{query_queue}[0][0])	2756	$self->send_packet ($self->{query_queue}[0][0])
1812	if @{ $self->{query_queue} } == 1;	2757	if @{ $self->{query_queue} } == 1;
		2758
		2759	1
1813	}	2760	}
1814		2761
1815	cf::client->attach (	2762	cf::client->attach (
		2763	on_connect => sub {
		2764	my ($ns) = @_;
		2765
		2766	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2767	},
1816	on_reply => sub {	2768	on_reply => sub {
1817	my ($ns, $msg) = @_;	2769	my ($ns, $msg) = @_;
1818		2770
1819	# this weird shuffling is so that direct followup queries	2771	# this weird shuffling is so that direct followup queries
1820	# get handled first	2772	# get handled first
1821	my $queue = delete $ns->{query_queue}	2773	my $queue = delete $ns->{query_queue}
1822	or return; # be conservative, not sure how that can happen, but we saw a crash here	2774	or return; # be conservative, not sure how that can happen, but we saw a crash here
1823		2775
1824	(shift @$queue)->[1]->($msg);	2776	(shift @$queue)->[1]->($msg);
		2777	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1825		2778
1826	push @{ $ns->{query_queue} }, @$queue;	2779	push @{ $ns->{query_queue} }, @$queue;
1827		2780
1828	if (@{ $ns->{query_queue} } == @$queue) {	2781	if (@{ $ns->{query_queue} } == @$queue) {
1829	if (@$queue) {	2782	if (@$queue) {
…		…
1831	} else {	2784	} else {
1832	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2785	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1833	}	2786	}
1834	}	2787	}
1835	},	2788	},
		2789	on_exticmd => sub {
		2790	my ($ns, $buf) = @_;
		2791
		2792	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2793
		2794	if (ref $msg) {
		2795	my ($type, $reply, @payload) =
		2796	"ARRAY" eq ref $msg
		2797	? @$msg
		2798	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2799
		2800	my @reply;
		2801
		2802	if (my $cb = $EXTICMD{$type}) {
		2803	@reply = $cb->($ns, @payload);
		2804	}
		2805
		2806	$ns->ext_reply ($reply, @reply)
		2807	if $reply;
		2808
		2809	} else {
		2810	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2811	}
		2812
		2813	cf::override;
		2814	},
1836	);	2815	);
1837		2816
1838	=item $client->async (\&cb)	2817	=item $client->async (\&cb)
1839		2818
1840	Create a new coroutine, running the specified callback. The coroutine will	2819	Create a new coroutine, running the specified callback. The coroutine will
…		…
1881	our $safe = new Safe "safe";	2860	our $safe = new Safe "safe";
1882	our $safe_hole = new Safe::Hole;	2861	our $safe_hole = new Safe::Hole;
1883		2862
1884	$SIG{FPE} = 'IGNORE';	2863	$SIG{FPE} = 'IGNORE';
1885		2864
1886	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2865	$safe->permit_only (Opcode::opset qw(
		2866	:base_core :base_mem :base_orig :base_math
		2867	grepstart grepwhile mapstart mapwhile
		2868	sort time
		2869	));
1887		2870
1888	# here we export the classes and methods available to script code	2871	# here we export the classes and methods available to script code
1889		2872
1890	=pod	2873	=pod
1891		2874
1892	The following fucntions and emthods are available within a safe environment:	2875	The following functions and methods are available within a safe environment:
1893		2876
1894	cf::object contr pay_amount pay_player map	2877	cf::object
		2878	contr pay_amount pay_player map x y force_find force_add
		2879	insert remove name archname title slaying race decrease_ob_nr
		2880
1895	cf::object::player player	2881	cf::object::player
1896	cf::player peaceful	2882	player
1897	cf::map trigger	2883
		2884	cf::player
		2885	peaceful
		2886
		2887	cf::map
		2888	trigger
1898		2889
1899	=cut	2890	=cut
1900		2891
1901	for (	2892	for (
1902	["cf::object" => qw(contr pay_amount pay_player map)],	2893	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2894	insert remove inv name archname title slaying race
		2895	decrease_ob_nr)],
1903	["cf::object::player" => qw(player)],	2896	["cf::object::player" => qw(player)],
1904	["cf::player" => qw(peaceful)],	2897	["cf::player" => qw(peaceful)],
1905	["cf::map" => qw(trigger)],	2898	["cf::map" => qw(trigger)],
1906	) {	2899	) {
1907	no strict 'refs';	2900	no strict 'refs';
…		…
1978	=back	2971	=back
1979		2972
1980	=cut	2973	=cut
1981		2974
1982	#############################################################################	2975	#############################################################################
		2976	# the server's init and main functions
1983		2977
1984	=head2 EXTENSION DATABASE SUPPORT	2978	sub load_facedata($) {
		2979	my ($path) = @_;
1985		2980
1986	Crossfire maintains a very simple database for extension use. It can	2981	# HACK to clear player env face cache, we need some signal framework
1987	currently store anything that can be serialised using Storable, which	2982	# for this (global event?)
1988	excludes objects.	2983	%ext::player_env::MUSIC_FACE_CACHE = ();
1989		2984
1990	The parameter C<$family> should best start with the name of the extension	2985	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1991	using it, it should be unique.
1992		2986
1993	=over 4	2987	warn "loading facedata from $path\n";
1994		2988
1995	=item $hashref = cf::db_get $family	2989	my $facedata;
		2990	0 < aio_load $path, $facedata
		2991	or die "$path: $!";
1996		2992
1997	Return a hashref for use by the extension C<$family>, which can be	2993	$facedata = Coro::Storable::thaw $facedata;
1998	modified. After modifications, you have to call C<cf::db_dirty> or
1999	C<cf::db_sync>.
2000		2994
2001	=item $value = cf::db_get $family => $key	2995	$facedata->{version} == 2
		2996	or cf::cleanup "$path: version mismatch, cannot proceed.";
2002		2997
2003	Returns a single value from the database	2998	# patch in the exptable
2004		2999	$facedata->{resource}{"res/exp_table"} = {
2005	=item cf::db_put $family => $hashref	3000	type => FT_RSRC,
2006		3001	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2007	Stores the given family hashref into the database. Updates are delayed, if
2008	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2009
2010	=item cf::db_put $family => $key => $value
2011
2012	Stores the given C<$value> in the family hash. Updates are delayed, if you
2013	want the data to be synced to disk immediately, use C<cf::db_sync>.
2014
2015	=item cf::db_dirty
2016
2017	Marks the database as dirty, to be updated at a later time.
2018
2019	=item cf::db_sync
2020
2021	Immediately write the database to disk I<if it is dirty>.
2022
2023	=cut
2024
2025	our $DB;
2026
2027	{
2028	my $path = cf::localdir . "/database.pst";
2029
2030	sub db_load() {
2031	$DB = stat $path ? Storable::retrieve $path : { };
2032	}
2033
2034	my $pid;
2035
2036	sub db_save() {
2037	waitpid $pid, 0 if $pid;
2038	if (0 == ($pid = fork)) {
2039	$DB->{_meta}{version} = 1;
2040	Storable::nstore $DB, "$path~";
2041	rename "$path~", $path;
2042	cf::_exit 0 if defined $pid;
2043	}
2044	}
2045
2046	my $dirty;
2047
2048	sub db_sync() {
2049	db_save if $dirty;
2050	undef $dirty;
2051	}
2052
2053	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2054	db_sync;
2055	});	3002	};
		3003	cf::cede_to_tick;
2056		3004
2057	sub db_dirty() {
2058	$dirty = 1;
2059	$idle->start;
2060	}	3005	{
		3006	my $faces = $facedata->{faceinfo};
2061		3007
2062	sub db_get($;$) {	3008	while (my ($face, $info) = each %$faces) {
2063	@_ >= 2	3009	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2064	? $DB->{$_[0]}{$_[1]}	3010	cf::face::set_visibility $idx, $info->{visibility};
2065	: ($DB->{$_[0]} ||= { })	3011	cf::face::set_magicmap $idx, $info->{magicmap};
2066	}	3012	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3013	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2067		3014
2068	sub db_put($$;$) {	3015	cf::cede_to_tick;
2069	if (@_ >= 3) {
2070	$DB->{$_[0]}{$_[1]} = $_[2];
2071	} else {
2072	$DB->{$_[0]} = $_[1];
2073	}
2074	db_dirty;
2075	}
2076
2077	cf::global->attach (
2078	prio => 10000,
2079	on_cleanup => sub {
2080	db_sync;
2081	},	3016	}
2082	);
2083	}
2084		3017
2085	#############################################################################	3018	while (my ($face, $info) = each %$faces) {
2086	# the server's main()	3019	next unless $info->{smooth};
		3020	my $idx = cf::face::find $face
		3021	or next;
		3022	if (my $smooth = cf::face::find $info->{smooth}) {
		3023	cf::face::set_smooth $idx, $smooth;
		3024	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3025	} else {
		3026	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3027	}
2087		3028
2088	sub cfg_load {	3029	cf::cede_to_tick;
		3030	}
		3031	}
		3032
		3033	{
		3034	my $anims = $facedata->{animinfo};
		3035
		3036	while (my ($anim, $info) = each %$anims) {
		3037	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3038	cf::cede_to_tick;
		3039	}
		3040
		3041	cf::anim::invalidate_all; # d'oh
		3042	}
		3043
		3044	{
		3045	# TODO: for gcfclient pleasure, we should give resources
		3046	# that gcfclient doesn't grok a >10000 face index.
		3047	my $res = $facedata->{resource};
		3048
		3049	my $soundconf = delete $res->{"res/sound.conf"};
		3050
		3051	while (my ($name, $info) = each %$res) {
		3052	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3053	my $data;
		3054
		3055	if ($info->{type} & 1) {
		3056	# prepend meta info
		3057
		3058	my $meta = $enc->encode ({
		3059	name => $name,
		3060	%{ $info->{meta} || {} },
		3061	});
		3062
		3063	$data = pack "(w/a*)*", $meta, $info->{data};
		3064	} else {
		3065	$data = $info->{data};
		3066	}
		3067
		3068	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3069	cf::face::set_type $idx, $info->{type};
		3070
		3071	cf::cede_to_tick;
		3072	}
		3073
		3074	if ($soundconf) {
		3075	$soundconf = $enc->decode (delete $soundconf->{data});
		3076
		3077	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3078	my $sound = $soundconf->{compat}[$_]
		3079	or next;
		3080
		3081	my $face = cf::face::find "sound/$sound->[1]";
		3082	cf::sound::set $sound->[0] => $face;
		3083	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3084	}
		3085
		3086	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3087	my $face = cf::face::find "sound/$v";
		3088	cf::sound::set $k => $face;
		3089	}
		3090	}
		3091	}
		3092
		3093	1
		3094	}
		3095
		3096	register_exticmd fx_want => sub {
		3097	my ($ns, $want) = @_;
		3098
		3099	while (my ($k, $v) = each %$want) {
		3100	$ns->fx_want ($k, $v);
		3101	}
		3102	};
		3103
		3104	sub reload_regions {
		3105	# HACK to clear player env face cache, we need some signal framework
		3106	# for this (global event?)
		3107	%ext::player_env::MUSIC_FACE_CACHE = ();
		3108
		3109	load_resource_file "$MAPDIR/regions"
		3110	or die "unable to load regions file\n";
		3111
		3112	for (cf::region::list) {
		3113	$_->{match} = qr/$_->{match}/
		3114	if exists $_->{match};
		3115	}
		3116	}
		3117
		3118	sub reload_facedata {
		3119	load_facedata "$DATADIR/facedata"
		3120	or die "unable to load facedata\n";
		3121	}
		3122
		3123	sub reload_archetypes {
		3124	load_resource_file "$DATADIR/archetypes"
		3125	or die "unable to load archetypes\n";
		3126	#d# NEED to laod twice to resolve forward references
		3127	# this really needs to be done in an extra post-pass
		3128	# (which needs to be synchronous, so solve it differently)
		3129	load_resource_file "$DATADIR/archetypes"
		3130	or die "unable to load archetypes\n";
		3131	}
		3132
		3133	sub reload_treasures {
		3134	load_resource_file "$DATADIR/treasures"
		3135	or die "unable to load treasurelists\n";
		3136	}
		3137
		3138	sub reload_resources {
		3139	warn "reloading resource files...\n";
		3140
		3141	reload_regions;
		3142	reload_facedata;
		3143	#reload_archetypes;#d#
		3144	reload_archetypes;
		3145	reload_treasures;
		3146
		3147	warn "finished reloading resource files\n";
		3148	}
		3149
		3150	sub init {
		3151	reload_resources;
		3152	}
		3153
		3154	sub reload_config {
2089	open my $fh, "<:utf8", cf::confdir . "/config"	3155	open my $fh, "<:utf8", "$CONFDIR/config"
2090	or return;	3156	or return;
2091		3157
2092	local $/;	3158	local $/;
2093	*CFG = YAML::Syck::Load <$fh>;	3159	*CFG = YAML::Syck::Load <$fh>;
2094		3160
…		…
2108		3174
2109	sub main {	3175	sub main {
2110	# we must not ever block the main coroutine	3176	# we must not ever block the main coroutine
2111	local $Coro::idle = sub {	3177	local $Coro::idle = sub {
2112	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3178	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
		3179	(async {
2113	async { Event::one_event };	3180	Event::one_event;
		3181	})->prio (Coro::PRIO_MAX);
2114	};	3182	};
2115		3183
2116	cfg_load;	3184	reload_config;
2117	db_load;	3185	db_init;
2118	load_extensions;	3186	load_extensions;
		3187
		3188	$TICK_WATCHER->start;
2119	Event::loop;	3189	Event::loop;
2120	}	3190	}
2121		3191
2122	#############################################################################	3192	#############################################################################
2123	# initialisation	3193	# initialisation and cleanup
2124		3194
		3195	# install some emergency cleanup handlers
		3196	BEGIN {
		3197	for my $signal (qw(INT HUP TERM)) {
		3198	Event->signal (
		3199	reentrant => 0,
		3200	data => WF_AUTOCANCEL,
		3201	signal => $signal,
		3202	prio => 0,
		3203	cb => sub {
		3204	cf::cleanup "SIG$signal";
		3205	},
		3206	);
		3207	}
		3208	}
		3209
		3210	sub write_runtime {
		3211	my $runtime = "$LOCALDIR/runtime";
		3212
		3213	# first touch the runtime file to show we are still running:
		3214	# the fsync below can take a very very long time.
		3215
		3216	IO::AIO::aio_utime $runtime, undef, undef;
		3217
		3218	my $guard = cf::lock_acquire "write_runtime";
		3219
		3220	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3221	or return;
		3222
		3223	my $value = $cf::RUNTIME + 90 + 10;
		3224	# 10 is the runtime save interval, for a monotonic clock
		3225	# 60 allows for the watchdog to kill the server.
		3226
		3227	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3228	and return;
		3229
		3230	# always fsync - this file is important
		3231	aio_fsync $fh
		3232	and return;
		3233
		3234	# touch it again to show we are up-to-date
		3235	aio_utime $fh, undef, undef;
		3236
		3237	close $fh
		3238	or return;
		3239
		3240	aio_rename "$runtime~", $runtime
		3241	and return;
		3242
		3243	warn "runtime file written.\n";
		3244
		3245	1
		3246	}
		3247
		3248	sub emergency_save() {
		3249	my $freeze_guard = cf::freeze_mainloop;
		3250
		3251	warn "enter emergency perl save\n";
		3252
		3253	cf::sync_job {
		3254	# use a peculiar iteration method to avoid tripping on perl
		3255	# refcount bugs in for. also avoids problems with players
		3256	# and maps saved/destroyed asynchronously.
		3257	warn "begin emergency player save\n";
		3258	for my $login (keys %cf::PLAYER) {
		3259	my $pl = $cf::PLAYER{$login} or next;
		3260	$pl->valid or next;
		3261	$pl->save;
		3262	}
		3263	warn "end emergency player save\n";
		3264
		3265	warn "begin emergency map save\n";
		3266	for my $path (keys %cf::MAP) {
		3267	my $map = $cf::MAP{$path} or next;
		3268	$map->valid or next;
		3269	$map->save;
		3270	}
		3271	warn "end emergency map save\n";
		3272
		3273	warn "begin emergency database checkpoint\n";
		3274	BDB::db_env_txn_checkpoint $DB_ENV;
		3275	warn "end emergency database checkpoint\n";
		3276	};
		3277
		3278	warn "leave emergency perl save\n";
		3279	}
		3280
		3281	sub post_cleanup {
		3282	my ($make_core) = @_;
		3283
		3284	warn Carp::longmess "post_cleanup backtrace"
		3285	if $make_core;
		3286	}
		3287
2125	sub reload() {	3288	sub do_reload_perl() {
2126	# can/must only be called in main	3289	# can/must only be called in main
2127	if ($Coro::current != $Coro::main) {	3290	if ($Coro::current != $Coro::main) {
2128	warn "can only reload from main coroutine\n";	3291	warn "can only reload from main coroutine";
2129	return;	3292	return;
2130	}	3293	}
2131		3294
2132	warn "reloading...";	3295	warn "reloading...";
2133		3296
2134	my $guard = freeze_mainloop;	3297	warn "entering sync_job";
		3298
		3299	cf::sync_job {
		3300	cf::write_runtime; # external watchdog should not bark
2135	cf::emergency_save;	3301	cf::emergency_save;
		3302	cf::write_runtime; # external watchdog should not bark
2136		3303
2137	eval {	3304	warn "syncing database to disk";
		3305	BDB::db_env_txn_checkpoint $DB_ENV;
		3306
2138	# if anything goes wrong in here, we should simply crash as we already saved	3307	# if anything goes wrong in here, we should simply crash as we already saved
2139		3308
2140	# cancel all watchers	3309	warn "cancelling all WF_AUTOCANCEL watchers";
2141	for (Event::all_watchers) {	3310	for (Event::all_watchers) {
2142	$_->cancel if $_->data & WF_AUTOCANCEL;	3311	$_->cancel if $_->data & WF_AUTOCANCEL;
2143	}	3312	}
2144		3313
		3314	warn "flushing outstanding aio requests";
		3315	for (;;) {
		3316	BDB::flush;
		3317	IO::AIO::flush;
		3318	Coro::cede;
		3319	last unless IO::AIO::nreqs || BDB::nreqs;
		3320	warn "iterate...";
		3321	}
		3322
		3323	++$RELOAD;
		3324
2145	# cancel all extension coros	3325	warn "cancelling all extension coros";
2146	$_->cancel for values %EXT_CORO;	3326	$_->cancel for values %EXT_CORO;
2147	%EXT_CORO = ();	3327	%EXT_CORO = ();
2148		3328
2149	# unload all extensions	3329	warn "removing commands";
2150	for (@exts) {	3330	%COMMAND = ();
		3331
		3332	warn "removing ext/exti commands";
		3333	%EXTCMD = ();
		3334	%EXTICMD = ();
		3335
		3336	warn "unloading/nuking all extensions";
		3337	for my $pkg (@EXTS) {
2151	warn "unloading <$_>";	3338	warn "... unloading $pkg";
2152	unload_extension $_;	3339
		3340	if (my $cb = $pkg->can ("unload")) {
		3341	eval {
		3342	$cb->($pkg);
		3343	1
		3344	} or warn "$pkg unloaded, but with errors: $@";
2153	}	3345	}
2154		3346
		3347	warn "... nuking $pkg";
		3348	Symbol::delete_package $pkg;
		3349	}
		3350
2155	# unload all modules loaded from $LIBDIR	3351	warn "unloading all perl modules loaded from $LIBDIR";
2156	while (my ($k, $v) = each %INC) {	3352	while (my ($k, $v) = each %INC) {
2157	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3353	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2158		3354
2159	warn "removing <$k>";	3355	warn "... unloading $k";
2160	delete $INC{$k};	3356	delete $INC{$k};
2161		3357
2162	$k =~ s/\.pm$//;	3358	$k =~ s/\.pm$//;
2163	$k =~ s/\//::/g;	3359	$k =~ s/\//::/g;
2164		3360
…		…
2167	}	3363	}
2168		3364
2169	Symbol::delete_package $k;	3365	Symbol::delete_package $k;
2170	}	3366	}
2171		3367
2172	# sync database to disk
2173	cf::db_sync;
2174	IO::AIO::flush;
2175
2176	# get rid of safe::, as good as possible	3368	warn "getting rid of safe::, as good as possible";
2177	Symbol::delete_package "safe::$_"	3369	Symbol::delete_package "safe::$_"
2178	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3370	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2179		3371
2180	# remove register_script_function callbacks
2181	# TODO
2182
2183	# unload cf.pm "a bit"	3372	warn "unloading cf.pm \"a bit\"";
2184	delete $INC{"cf.pm"};	3373	delete $INC{"cf.pm"};
		3374	delete $INC{"cf/pod.pm"};
2185		3375
2186	# don't, removes xs symbols, too,	3376	# don't, removes xs symbols, too,
2187	# and global variables created in xs	3377	# and global variables created in xs
2188	#Symbol::delete_package __PACKAGE__;	3378	#Symbol::delete_package __PACKAGE__;
2189		3379
2190	# reload cf.pm	3380	warn "unload completed, starting to reload now";
		3381
2191	warn "reloading cf.pm";	3382	warn "reloading cf.pm";
2192	require cf;	3383	require cf;
2193	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3384	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2194		3385
2195	# load config and database again	3386	warn "loading config and database again";
2196	cf::cfg_load;	3387	cf::reload_config;
2197	cf::db_load;
2198		3388
2199	# load extensions
2200	warn "load extensions";	3389	warn "loading extensions";
2201	cf::load_extensions;	3390	cf::load_extensions;
2202		3391
2203	# reattach attachments to objects	3392	warn "reattaching attachments to objects/players";
2204	warn "reattach";	3393	_global_reattach; # objects, sockets
2205	_global_reattach;	3394	warn "reattaching attachments to maps";
2206	reattach $_ for values %MAP;	3395	reattach $_ for values %MAP;
2207	};	3396	warn "reattaching attachments to players";
		3397	reattach $_ for values %PLAYER;
2208		3398
2209	if ($@) {	3399	warn "leaving sync_job";
		3400
		3401	1
		3402	} or do {
2210	warn $@;	3403	warn $@;
2211	warn "error while reloading, exiting.";	3404	warn "error while reloading, exiting.";
2212	exit 1;	3405	exit 1;
2213	}	3406	};
2214		3407
2215	warn "reloaded successfully";	3408	warn "reloaded";
2216	};	3409	};
2217		3410
2218	#############################################################################	3411	our $RELOAD_WATCHER; # used only during reload
2219		3412
2220	unless ($LINK_MAP) {	3413	sub reload_perl() {
2221	$LINK_MAP = cf::map::new;	3414	# doing reload synchronously and two reloads happen back-to-back,
		3415	# coro crashes during coro_state_free->destroy here.
2222		3416
2223	$LINK_MAP->width (41);	3417	$RELOAD_WATCHER ||= Event->timer (
2224	$LINK_MAP->height (41);	3418	reentrant => 0,
2225	$LINK_MAP->alloc;
2226	$LINK_MAP->path ("{link}");
2227	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2228	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2229
2230	# dirty hack because... archetypes are not yet loaded
2231	Event->timer (
2232	after => 10,	3419	after => 0,
		3420	data => WF_AUTOCANCEL,
2233	cb => sub {	3421	cb => sub {
2234	$_[0]->w->cancel;	3422	do_reload_perl;
2235		3423	undef $RELOAD_WATCHER;
2236	# provide some exits "home"
2237	my $exit = cf::object::new "exit";
2238
2239	$exit->slaying ($EMERGENCY_POSITION->[0]);
2240	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2241	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2242
2243	$LINK_MAP->insert ($exit->clone, 19, 19);
2244	$LINK_MAP->insert ($exit->clone, 19, 20);
2245	$LINK_MAP->insert ($exit->clone, 19, 21);
2246	$LINK_MAP->insert ($exit->clone, 20, 19);
2247	$LINK_MAP->insert ($exit->clone, 20, 21);
2248	$LINK_MAP->insert ($exit->clone, 21, 19);
2249	$LINK_MAP->insert ($exit->clone, 21, 20);
2250	$LINK_MAP->insert ($exit->clone, 21, 21);
2251
2252	$exit->destroy;
2253	});	3424	},
2254		3425	);
2255	$LINK_MAP->{deny_save} = 1;
2256	$LINK_MAP->{deny_reset} = 1;
2257
2258	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2259	}	3426	}
2260
2261	register "<global>", __PACKAGE__;
2262		3427
2263	register_command "reload" => sub {	3428	register_command "reload" => sub {
2264	my ($who, $arg) = @_;	3429	my ($who, $arg) = @_;
2265		3430
2266	if ($who->flag (FLAG_WIZ)) {	3431	if ($who->flag (FLAG_WIZ)) {
2267	$who->message ("start of reload.");
2268	reload;
2269	$who->message ("end of reload.");	3432	$who->message ("reloading server.");
		3433	async { reload_perl };
2270	}	3434	}
2271	};	3435	};
2272		3436
2273	unshift @INC, $LIBDIR;	3437	unshift @INC, $LIBDIR;
		3438
		3439	my $bug_warning = 0;
		3440
		3441	our @WAIT_FOR_TICK;
		3442	our @WAIT_FOR_TICK_BEGIN;
		3443
		3444	sub wait_for_tick {
		3445	return unless $TICK_WATCHER->is_active;
		3446	return if $Coro::current == $Coro::main;
		3447
		3448	my $signal = new Coro::Signal;
		3449	push @WAIT_FOR_TICK, $signal;
		3450	$signal->wait;
		3451	}
		3452
		3453	sub wait_for_tick_begin {
		3454	return unless $TICK_WATCHER->is_active;
		3455	return if $Coro::current == $Coro::main;
		3456
		3457	my $signal = new Coro::Signal;
		3458	push @WAIT_FOR_TICK_BEGIN, $signal;
		3459	$signal->wait;
		3460	}
2274		3461
2275	$TICK_WATCHER = Event->timer (	3462	$TICK_WATCHER = Event->timer (
2276	reentrant => 0,	3463	reentrant => 0,
		3464	parked => 1,
2277	prio => 0,	3465	prio => 0,
2278	at => $NEXT_TICK || $TICK,	3466	at => $NEXT_TICK || $TICK,
2279	data => WF_AUTOCANCEL,	3467	data => WF_AUTOCANCEL,
2280	cb => sub {	3468	cb => sub {
		3469	if ($Coro::current != $Coro::main) {
		3470	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3471	unless ++$bug_warning > 10;
		3472	return;
		3473	}
		3474
		3475	$NOW = $tick_start = Event::time;
		3476
2281	cf::server_tick; # one server iteration	3477	cf::server_tick; # one server iteration
		3478
2282	$RUNTIME += $TICK;	3479	$RUNTIME += $TICK;
2283	$NEXT_TICK += $TICK;	3480	$NEXT_TICK += $TICK;
2284		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	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3491	$sig->send;
		3492	}
		3493	while (my $sig = shift @WAIT_FOR_TICK) {
		3494	$sig->send;
		3495	}
		3496
		3497	$NOW = Event::time;
		3498
2285	# if we are delayed by four ticks or more, skip them all	3499	# if we are delayed by four ticks or more, skip them all
2286	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3500	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2287		3501
2288	$TICK_WATCHER->at ($NEXT_TICK);	3502	$TICK_WATCHER->at ($NEXT_TICK);
2289	$TICK_WATCHER->start;	3503	$TICK_WATCHER->start;
		3504
		3505	$LOAD = ($NOW - $tick_start) / $TICK;
		3506	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3507
		3508	_post_tick;
2290	},	3509	},
2291	);	3510	);
2292		3511
		3512	{
		3513	BDB::min_parallel 8;
2293	IO::AIO::max_poll_time $TICK * 0.2;	3514	BDB::max_poll_time $TICK * 0.1;
2294		3515	$BDB_POLL_WATCHER = Event->io (
2295	Event->io (	3516	reentrant => 0,
2296	fd => IO::AIO::poll_fileno,	3517	fd => BDB::poll_fileno,
2297	poll => 'r',	3518	poll => 'r',
2298	prio => 5,	3519	prio => 0,
2299	data => WF_AUTOCANCEL,
2300	cb => \&IO::AIO::poll_cb,
2301	);
2302
2303	Event->timer (
2304	data => WF_AUTOCANCEL,	3520	data => WF_AUTOCANCEL,
		3521	cb => \&BDB::poll_cb,
		3522	);
		3523
		3524	BDB::set_sync_prepare {
		3525	my $status;
		3526	my $current = $Coro::current;
		3527	(
		3528	sub {
		3529	$status = $!;
		3530	$current->ready; undef $current;
		3531	},
		3532	sub {
		3533	Coro::schedule while defined $current;
		3534	$! = $status;
		3535	},
		3536	)
		3537	};
		3538
		3539	unless ($DB_ENV) {
		3540	$DB_ENV = BDB::db_env_create;
		3541	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3542	| BDB::LOG_AUTOREMOVE, 1);
		3543	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3544	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3545
		3546	cf::sync_job {
		3547	eval {
		3548	BDB::db_env_open
		3549	$DB_ENV,
		3550	$BDBDIR,
		3551	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3552	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3553	0666;
		3554
		3555	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3556	};
		3557
		3558	cf::cleanup "db_env_open(db): $@" if $@;
		3559	};
		3560	}
		3561
		3562	$BDB_DEADLOCK_WATCHER = Event->timer (
2305	after => 0,	3563	after => 3,
2306	interval => 10,	3564	interval => 1,
		3565	hard => 1,
		3566	prio => 0,
		3567	data => WF_AUTOCANCEL,
2307	cb => sub {	3568	cb => sub {
2308	(Coro::unblock_sub {	3569	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2309	write_runtime	3570	},
2310	or warn "ERROR: unable to write runtime file: $!";	3571	);
		3572	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3573	after => 11,
		3574	interval => 60,
		3575	hard => 1,
		3576	prio => 0,
		3577	data => WF_AUTOCANCEL,
		3578	cb => sub {
		3579	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3580	},
		3581	);
		3582	$BDB_TRICKLE_WATCHER = Event->timer (
		3583	after => 5,
		3584	interval => 10,
		3585	hard => 1,
		3586	prio => 0,
		3587	data => WF_AUTOCANCEL,
		3588	cb => sub {
		3589	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3590	},
		3591	);
		3592	}
		3593
		3594	{
		3595	IO::AIO::min_parallel 8;
		3596
		3597	undef $Coro::AIO::WATCHER;
		3598	IO::AIO::max_poll_time $TICK * 0.1;
		3599	$AIO_POLL_WATCHER = Event->io (
		3600	reentrant => 0,
		3601	data => WF_AUTOCANCEL,
		3602	fd => IO::AIO::poll_fileno,
		3603	poll => 'r',
		3604	prio => 6,
		3605	cb => \&IO::AIO::poll_cb,
		3606	);
		3607	}
		3608
		3609	my $_log_backtrace;
		3610
		3611	sub _log_backtrace {
		3612	my ($msg, @addr) = @_;
		3613
		3614	$msg =~ s/\n//;
		3615
		3616	# limit the # of concurrent backtraces
		3617	if ($_log_backtrace < 2) {
		3618	++$_log_backtrace;
		3619	async {
		3620	my @bt = fork_call {
		3621	@addr = map { sprintf "%x", $_ } @addr;
		3622	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3623	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3624	or die "addr2line: $!";
		3625
		3626	my @funcs;
		3627	my @res = <$fh>;
		3628	chomp for @res;
		3629	while (@res) {
		3630	my ($func, $line) = splice @res, 0, 2, ();
		3631	push @funcs, "[$func] $line";
		3632	}
		3633
		3634	@funcs
		3635	};
		3636
		3637	LOG llevInfo, "[ABT] $msg\n";
		3638	LOG llevInfo, "[ABT] $_\n" for @bt;
		3639	--$_log_backtrace;
2311	})->();	3640	};
		3641	} else {
		3642	LOG llevInfo, "[ABT] $msg\n";
		3643	LOG llevInfo, "[ABT] [suppressed]\n";
2312	},	3644	}
2313	);	3645	}
		3646
		3647	# load additional modules
		3648	use cf::pod;
2314		3649
2315	END { cf::emergency_save }	3650	END { cf::emergency_save }
2316		3651
2317	1	3652	1
2318		3653

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