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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.167 by root, Sat Jan 13 23:32:43 2007 UTC vs.
Revision 1.398 by root, Wed Dec 5 11:08:34 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 Storable;	8	use Socket;
		9	use EV;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
		13	use Storable ();
12		14
13	use Coro 3.3 ();	15	use Coro 4.1 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::EV;
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 2.01 ();
		27	use BDB ();
20	use Data::Dumper;	28	use Data::Dumper;
21	use Digest::MD5;	29	use Digest::MD5;
22	use Fcntl;	30	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.51 ();
25	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
26		36
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	37	# configure various modules to our taste
28		38	#
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	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
30		42
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	43	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	44	$YAML::Syck::ImplicitUnicode = 1;
33		45
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	46	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		47
		48	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		49
36	our %COMMAND = ();	50	our %COMMAND = ();
37	our %COMMAND_TIME = ();	51	our %COMMAND_TIME = ();
38		52
39	our @EXTS = (); # list of extension package names	53	our @EXTS = (); # list of extension package names
40	our %EXTCMD = ();	54	our %EXTCMD = ();
		55	our %EXTICMD = ();
41	our %EXT_CORO = (); # coroutines bound to extensions	56	our %EXT_CORO = (); # coroutines bound to extensions
42	our %EXT_MAP = (); # pluggable maps	57	our %EXT_MAP = (); # pluggable maps
43		58
		59	our $RELOAD; # number of reloads so far
44	our @EVENT;	60	our @EVENT;
45	our $LIBDIR = datadir . "/ext";
46		61
47	our $TICK = MAX_TIME * 1e-6;	62	our $CONFDIR = confdir;
		63	our $DATADIR = datadir;
		64	our $LIBDIR = "$DATADIR/ext";
		65	our $PODDIR = "$DATADIR/pod";
		66	our $MAPDIR = "$DATADIR/" . mapdir;
		67	our $LOCALDIR = localdir;
		68	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		69	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		70	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		71	our $RANDOMDIR = "$LOCALDIR/random";
		72	our $BDBDIR = "$LOCALDIR/db";
		73
		74	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
48	our $TICK_WATCHER;	75	our $TICK_WATCHER;
		76	our $AIO_POLL_WATCHER;
		77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
49	our $NEXT_TICK;	78	our $NEXT_TICK;
50	our $NOW;	79	our $NOW;
		80	our $USE_FSYNC = 1; # use fsync to write maps - default off
		81
		82	our $BDB_POLL_WATCHER;
		83	our $BDB_DEADLOCK_WATCHER;
		84	our $BDB_CHECKPOINT_WATCHER;
		85	our $BDB_TRICKLE_WATCHER;
		86	our $DB_ENV;
51		87
52	our %CFG;	88	our %CFG;
53		89
54	our $UPTIME; $UPTIME ||= time;	90	our $UPTIME; $UPTIME ||= time;
55	our $RUNTIME;	91	our $RUNTIME;
56		92
57	our %PLAYER; # all users	93	our (%PLAYER, %PLAYER_LOADING); # all users
58	our %MAP; # all maps	94	our (%MAP, %MAP_LOADING ); # all maps
59	our $LINK_MAP; # the special {link} map, which is always available	95	our $LINK_MAP; # the special {link} map, which is always available
60	our $RANDOM_MAPS = cf::localdir . "/random";
61
62	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
63	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
64		96
65	# used to convert map paths into valid unix filenames by replacing / by ∕	97	# used to convert map paths into valid unix filenames by replacing / by ∕
66	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	98	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
67		99
		100	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		101	our $LOADAVG; # same thing, but with alpha-smoothing
		102	our $tick_start; # for load detecting purposes
		103
68	binmode STDOUT;	104	binmode STDOUT;
69	binmode STDERR;	105	binmode STDERR;
70		106
71	# read virtual server time, if available	107	# read virtual server time, if available
72	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	108	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
73	open my $fh, "<", cf::localdir . "/runtime"	109	open my $fh, "<", "$LOCALDIR/runtime"
74	or die "unable to read runtime file: $!";	110	or die "unable to read runtime file: $!";
75	$RUNTIME = <$fh> + 0.;	111	$RUNTIME = <$fh> + 0.;
76	}	112	}
77		113
78	mkdir cf::localdir;	114	mkdir $_
79	mkdir cf::localdir . "/" . cf::playerdir;	115	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
80	mkdir cf::localdir . "/" . cf::tmpdir;
81	mkdir cf::localdir . "/" . cf::uniquedir;
82	mkdir $RANDOM_MAPS;
83		116
84	our $EMERGENCY_POSITION;	117	our $EMERGENCY_POSITION;
		118
		119	sub cf::map::normalise;
85		120
86	#############################################################################	121	#############################################################################
87		122
88	=head2 GLOBAL VARIABLES	123	=head2 GLOBAL VARIABLES
89		124
…		…
96	=item $cf::RUNTIME	131	=item $cf::RUNTIME
97		132
98	The time this server has run, starts at 0 and is increased by $cf::TICK on	133	The time this server has run, starts at 0 and is increased by $cf::TICK on
99	every server tick.	134	every server tick.
100		135
101	=item $cf::LIBDIR	136	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		137	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		138	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
102		139
103	The perl library directory, where extensions and cf-specific modules can	140	Various directories - "/etc", read-only install directory, perl-library
104	be found. It will be added to C<@INC> automatically.	141	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		142	unique-items directory, player file directory, random maps directory and
		143	database environment.
105		144
106	=item $cf::NOW	145	=item $cf::NOW
107		146
108	The time of the last (current) server tick.	147	The time of the last (current) server tick.
109		148
110	=item $cf::TICK	149	=item $cf::TICK
111		150
112	The interval between server ticks, in seconds.	151	The interval between server ticks, in seconds.
113		152
		153	=item $cf::LOADAVG
		154
		155	The current CPU load on the server (alpha-smoothed), as a value between 0
		156	(none) and 1 (overloaded), indicating how much time is spent on processing
		157	objects per tick. Healthy values are < 0.5.
		158
		159	=item $cf::LOAD
		160
		161	The raw value load value from the last tick.
		162
114	=item %cf::CFG	163	=item %cf::CFG
115		164
116	Configuration for the server, loaded from C</etc/crossfire/config>, or	165	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
117	from wherever your confdir points to.	166	from wherever your confdir points to.
118		167
119	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	168	=item cf::wait_for_tick, cf::wait_for_tick_begin
120		169
121	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	170	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
122	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	171	returns directly I<after> the tick processing (and consequently, can only wake one process
123	processing has been done. Call C<< ->wait >> on them to maximise the	172	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
124	window of cpu time available, or simply to synchronise to the server tick.	173
		174	=item @cf::INVOKE_RESULTS
		175
		176	This array contains the results of the last C<invoke ()> call. When
		177	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		178	that call.
125		179
126	=back	180	=back
127		181
128	=cut	182	=cut
129		183
130	BEGIN {	184	BEGIN {
131	*CORE::GLOBAL::warn = sub {	185	*CORE::GLOBAL::warn = sub {
132	my $msg = join "", @_;	186	my $msg = join "", @_;
133	utf8::encode $msg;
134		187
135	$msg .= "\n"	188	$msg .= "\n"
136	unless $msg =~ /\n$/;	189	unless $msg =~ /\n$/;
		190
		191	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
137		192
138	LOG llevError, $msg;	193	LOG llevError, $msg;
139	};	194	};
140	}	195	}
141		196
142	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	197	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
143	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	198	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
144	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	199	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
145	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	200	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
146	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	201	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		202	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
147	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	203	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
148		204
149	# we bless all objects into (empty) derived classes to force a method lookup	205	# we bless all objects into (empty) derived classes to force a method lookup
150	# within the Safe compartment.	206	# within the Safe compartment.
151	for my $pkg (qw(	207	for my $pkg (qw(
152	cf::global cf::attachable	208	cf::global cf::attachable
…		…
157	)) {	213	)) {
158	no strict 'refs';	214	no strict 'refs';
159	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	215	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
160	}	216	}
161		217
162	$Event::DIED = sub {	218	$EV::DIED = sub {
163	warn "error in event callback: @_";	219	warn "error in event callback: @_";
164	};	220	};
		221
		222	#############################################################################
165		223
166	=head2 UTILITY FUNCTIONS	224	=head2 UTILITY FUNCTIONS
167		225
168	=over 4	226	=over 4
169		227
…		…
188	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	246	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
189	$d	247	$d
190	} || "[unable to dump $_[0]: '$@']";	248	} || "[unable to dump $_[0]: '$@']";
191	}	249	}
192		250
193	use JSON::Syck (); # TODO# replace by JSON::PC once working
194
195	=item $ref = cf::from_json $json	251	=item $ref = cf::decode_json $json
196		252
197	Converts a JSON string into the corresponding perl data structure.	253	Converts a JSON string into the corresponding perl data structure.
198		254
199	=cut
200
201	sub from_json($) {
202	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203	JSON::Syck::Load $_[0]
204	}
205
206	=item $json = cf::to_json $ref	255	=item $json = cf::encode_json $ref
207		256
208	Converts a perl data structure into its JSON representation.	257	Converts a perl data structure into its JSON representation.
209		258
210	=cut	259	=cut
211		260
212	sub to_json($) {	261	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	262
214	JSON::Syck::Dump $_[0]	263	sub encode_json($) { $json_coder->encode ($_[0]) }
215	}	264	sub decode_json($) { $json_coder->decode ($_[0]) }
216		265
217	=item cf::lock_wait $string	266	=item cf::lock_wait $string
218		267
219	Wait until the given lock is available. See cf::lock_acquire.	268	Wait until the given lock is available. See cf::lock_acquire.
220		269
…		…
223	Wait until the given lock is available and then acquires it and returns	272	Wait until the given lock is available and then acquires it and returns
224	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	273	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
225	for example when the coroutine gets canceled), the lock is automatically	274	for example when the coroutine gets canceled), the lock is automatically
226	returned.	275	returned.
227		276
		277	Locks are *not* recursive, locking from the same coro twice results in a
		278	deadlocked coro.
		279
228	Lock names should begin with a unique identifier (for example, cf::map::find	280	Lock names should begin with a unique identifier (for example, cf::map::find
229	uses map_find and cf::map::load uses map_load).	281	uses map_find and cf::map::load uses map_load).
230		282
		283	=item $locked = cf::lock_active $string
		284
		285	Return true if the lock is currently active, i.e. somebody has locked it.
		286
231	=cut	287	=cut
232		288
233	our %LOCK;	289	our %LOCK;
		290	our %LOCKER;#d#
234		291
235	sub lock_wait($) {	292	sub lock_wait($) {
236	my ($key) = @_;	293	my ($key) = @_;
		294
		295	if ($LOCKER{$key} == $Coro::current) {#d#
		296	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		297	return;#d#
		298	}#d#
237		299
238	# wait for lock, if any	300	# wait for lock, if any
239	while ($LOCK{$key}) {	301	while ($LOCK{$key}) {
240	push @{ $LOCK{$key} }, $Coro::current;	302	push @{ $LOCK{$key} }, $Coro::current;
241	Coro::schedule;	303	Coro::schedule;
…		…
247		309
248	# wait, to be sure we are not locked	310	# wait, to be sure we are not locked
249	lock_wait $key;	311	lock_wait $key;
250		312
251	$LOCK{$key} = [];	313	$LOCK{$key} = [];
		314	$LOCKER{$key} = $Coro::current;#d#
252		315
253	Coro::guard {	316	Coro::guard {
		317	delete $LOCKER{$key};#d#
254	# wake up all waiters, to be on the safe side	318	# wake up all waiters, to be on the safe side
255	$_->ready for @{ delete $LOCK{$key} };	319	$_->ready for @{ delete $LOCK{$key} };
256	}	320	}
257	}	321	}
258		322
		323	sub lock_active($) {
		324	my ($key) = @_;
		325
		326	! ! $LOCK{$key}
		327	}
		328
259	sub freeze_mainloop {	329	sub freeze_mainloop {
260	return unless $TICK_WATCHER->is_active;	330	return unless $TICK_WATCHER->is_active;
261		331
262	my $guard = Coro::guard { $TICK_WATCHER->start };	332	my $guard = Coro::guard {
		333	$TICK_WATCHER->start;
		334	};
263	$TICK_WATCHER->stop;	335	$TICK_WATCHER->stop;
264	$guard	336	$guard
		337	}
		338
		339	=item cf::periodic $interval, $cb
		340
		341	Like EV::periodic, but randomly selects a starting point so that the actions
		342	get spread over timer.
		343
		344	=cut
		345
		346	sub periodic($$) {
		347	my ($interval, $cb) = @_;
		348
		349	my $start = rand List::Util::min 180, $interval;
		350
		351	EV::periodic $start, $interval, 0, $cb
		352	}
		353
		354	=item cf::get_slot $time[, $priority[, $name]]
		355
		356	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		357	This call blocks and returns only when you have at least C<$time> seconds
		358	of cpu time till the next tick. The slot is only valid till the next cede.
		359
		360	The optional C<$name> can be used to identify the job to run. It might be
		361	used for statistical purposes and should identify the same time-class.
		362
		363	Useful for short background jobs.
		364
		365	=cut
		366
		367	our @SLOT_QUEUE;
		368	our $SLOT_QUEUE;
		369
		370	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		371	$SLOT_QUEUE = Coro::async {
		372	$Coro::current->desc ("timeslot manager");
		373
		374	my $signal = new Coro::Signal;
		375
		376	while () {
		377	next_job:
		378	my $avail = cf::till_tick;
		379	if ($avail > 0.01) {
		380	for (0 .. $#SLOT_QUEUE) {
		381	if ($SLOT_QUEUE[$_][0] < $avail) {
		382	my $job = splice @SLOT_QUEUE, $_, 1, ();
		383	$job->[2]->send;
		384	Coro::cede;
		385	goto next_job;
		386	}
		387	}
		388	}
		389
		390	if (@SLOT_QUEUE) {
		391	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		392	push @cf::WAIT_FOR_TICK, $signal;
		393	$signal->wait;
		394	} else {
		395	Coro::schedule;
		396	}
		397	}
		398	};
		399
		400	sub get_slot($;$$) {
		401	my ($time, $pri, $name) = @_;
		402
		403	$time = $TICK * .6 if $time > $TICK * .6;
		404	my $sig = new Coro::Signal;
		405
		406	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		407	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		408	$SLOT_QUEUE->ready;
		409	$sig->wait;
265	}	410	}
266		411
267	=item cf::async { BLOCK }	412	=item cf::async { BLOCK }
268		413
269	Currently the same as Coro::async_pool, meaning you cannot use	414	Currently the same as Coro::async_pool, meaning you cannot use
…		…
274		419
275	BEGIN { *async = \&Coro::async_pool }	420	BEGIN { *async = \&Coro::async_pool }
276		421
277	=item cf::sync_job { BLOCK }	422	=item cf::sync_job { BLOCK }
278		423
279	The design of crossfire+ requires that the main coro ($Coro::main) is	424	The design of Deliantra requires that the main coroutine ($Coro::main)
280	always able to handle events or runnable, as crossfire+ is only partly	425	is always able to handle events or runnable, as Deliantra is only
281	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	426	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		427	acceptable.
282		428
283	If it must be done, put the blocking parts into C<sync_job>. This will run	429	If it must be done, put the blocking parts into C<sync_job>. This will run
284	the given BLOCK in another coroutine while waiting for the result. The	430	the given BLOCK in another coroutine while waiting for the result. The
285	server will be frozen during this time, so the block should either finish	431	server will be frozen during this time, so the block should either finish
286	fast or be very important.	432	fast or be very important.
…		…
289		435
290	sub sync_job(&) {	436	sub sync_job(&) {
291	my ($job) = @_;	437	my ($job) = @_;
292		438
293	if ($Coro::current == $Coro::main) {	439	if ($Coro::current == $Coro::main) {
		440	my $time = EV::time;
		441
294	# this is the main coro, too bad, we have to block	442	# this is the main coro, too bad, we have to block
295	# till the operation succeeds, freezing the server :/	443	# till the operation succeeds, freezing the server :/
296		444
		445	LOG llevError, Carp::longmess "sync job";#d#
		446
297	# TODO: use suspend/resume instead	447	# TODO: use suspend/resume instead
298	# (but this is cancel-safe)	448	# (but this is cancel-safe)
299	my $freeze_guard = freeze_mainloop;	449	my $freeze_guard = freeze_mainloop;
300		450
301	my $busy = 1;	451	my $busy = 1;
302	my @res;	452	my @res;
303		453
304	(async {	454	(async {
		455	$Coro::current->desc ("sync job coro");
305	@res = eval { $job->() };	456	@res = eval { $job->() };
306	warn $@ if $@;	457	warn $@ if $@;
307	undef $busy;	458	undef $busy;
308	})->prio (Coro::PRIO_MAX);	459	})->prio (Coro::PRIO_MAX);
309		460
310	while ($busy) {	461	while ($busy) {
311	Coro::cede or Event::one_event;	462	if (Coro::nready) {
		463	Coro::cede_notself;
		464	} else {
		465	EV::loop EV::LOOP_ONESHOT;
312	}	466	}
		467	}
		468
		469	$time = EV::time - $time;
		470
		471	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		472	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		473
		474	$tick_start += $time; # do not account sync jobs to server load
313		475
314	wantarray ? @res : $res[0]	476	wantarray ? @res : $res[0]
315	} else {	477	} else {
316	# we are in another coroutine, how wonderful, everything just works	478	# we are in another coroutine, how wonderful, everything just works
317		479
…		…
337	$EXT_CORO{$coro+0} = $coro;	499	$EXT_CORO{$coro+0} = $coro;
338		500
339	$coro	501	$coro
340	}	502	}
341		503
342	sub write_runtime {	504	=item fork_call { }, $args
343	return unless $TICK_WATCHER->is_active;
344		505
345	my $runtime = cf::localdir . "/runtime";	506	Executes the given code block with the given arguments in a seperate
		507	process, returning the results. Everything must be serialisable with
		508	Coro::Storable. May, of course, block. Note that the executed sub may
		509	never block itself or use any form of event handling.
346		510
347	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	511	=cut
348	or return;
349		512
350	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	513	sub fork_call(&@) {
351	(aio_write $fh, 0, (length $value), $value, 0) <= 0	514	my ($cb, @args) = @_;
352	and return;
353		515
354	aio_fsync $fh	516	# we seemingly have to make a local copy of the whole thing,
355	and return;	517	# otherwise perl prematurely frees the stuff :/
		518	# TODO: investigate and fix (likely this will be rather laborious)
356		519
357	close $fh	520	my @res = Coro::Util::fork_eval {
358	or return;	521	reset_signals;
		522	&$cb
		523	}, @args;
359		524
360	aio_rename "$runtime~", $runtime	525	wantarray ? @res : $res[-1]
361	and return;	526	}
362		527
		528	=item $value = cf::db_get $family => $key
		529
		530	Returns a single value from the environment database.
		531
		532	=item cf::db_put $family => $key => $value
		533
		534	Stores the given C<$value> in the family. It can currently store binary
		535	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		536
		537	=item $db = cf::db_table "name"
		538
		539	Create and/or open a new database table. The string must not be "db" and must be unique
		540	within each server.
		541
		542	=cut
		543
		544	sub db_table($) {
		545	my ($name) = @_;
		546	my $db = BDB::db_create $DB_ENV;
		547
		548	eval {
		549	$db->set_flags (BDB::CHKSUM);
		550
		551	utf8::encode $name;
		552	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		553	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		554	cf::cleanup "db_open(db): $!" if $!;
		555	};
		556	cf::cleanup "db_open(db): $@" if $@;
		557
		558	$db
		559	}
		560
		561	our $DB;
		562
		563	sub db_init {
		564	cf::sync_job {
		565	$DB ||= db_table "db";
		566	};
		567	}
		568
		569	sub db_get($$) {
		570	my $key = "$_[0]/$_[1]";
		571
		572	cf::sync_job {
		573	BDB::db_get $DB, undef, $key, my $data;
		574
		575	$! ? ()
		576	: $data
363	1	577	}
		578	}
		579
		580	sub db_put($$$) {
		581	BDB::dbreq_pri 4;
		582	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		583	}
		584
		585	=item cf::cache $id => [$paths...], $processversion => $process
		586
		587	Generic caching function that returns the value of the resource $id,
		588	caching and regenerating as required.
		589
		590	This function can block.
		591
		592	=cut
		593
		594	sub cache {
		595	my ($id, $src, $processversion, $process) = @_;
		596
		597	my $meta =
		598	join "\x00",
		599	$processversion,
		600	map {
		601	aio_stat $_
		602	and Carp::croak "$_: $!";
		603
		604	($_, (stat _)[7,9])
		605	} @$src;
		606
		607	my $dbmeta = db_get cache => "$id/meta";
		608	if ($dbmeta ne $meta) {
		609	# changed, we may need to process
		610
		611	my @data;
		612	my $md5;
		613
		614	for (0 .. $#$src) {
		615	0 <= aio_load $src->[$_], $data[$_]
		616	or Carp::croak "$src->[$_]: $!";
		617	}
		618
		619	# if processing is expensive, check
		620	# checksum first
		621	if (1) {
		622	$md5 =
		623	join "\x00",
		624	$processversion,
		625	map {
		626	cf::cede_to_tick;
		627	($src->[$_], Digest::MD5::md5_hex $data[$_])
		628	} 0.. $#$src;
		629
		630
		631	my $dbmd5 = db_get cache => "$id/md5";
		632	if ($dbmd5 eq $md5) {
		633	db_put cache => "$id/meta", $meta;
		634
		635	return db_get cache => "$id/data";
		636	}
		637	}
		638
		639	my $t1 = Time::HiRes::time;
		640	my $data = $process->(\@data);
		641	my $t2 = Time::HiRes::time;
		642
		643	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		644
		645	db_put cache => "$id/data", $data;
		646	db_put cache => "$id/md5" , $md5;
		647	db_put cache => "$id/meta", $meta;
		648
		649	return $data;
		650	}
		651
		652	db_get cache => "$id/data"
		653	}
		654
		655	=item cf::datalog type => key => value, ...
		656
		657	Log a datalog packet of the given type with the given key-value pairs.
		658
		659	=cut
		660
		661	sub datalog($@) {
		662	my ($type, %kv) = @_;
		663	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
364	}	664	}
365		665
366	=back	666	=back
367		667
368	=cut	668	=cut
…		…
375	attach callbacks/event handlers (a collection of which is called an "attachment")	675	attach callbacks/event handlers (a collection of which is called an "attachment")
376	to it. All such attachable objects support the following methods.	676	to it. All such attachable objects support the following methods.
377		677
378	In the following description, CLASS can be any of C<global>, C<object>	678	In the following description, CLASS can be any of C<global>, C<object>
379	C<player>, C<client> or C<map> (i.e. the attachable objects in	679	C<player>, C<client> or C<map> (i.e. the attachable objects in
380	crossfire+).	680	Deliantra).
381		681
382	=over 4	682	=over 4
383		683
384	=item $attachable->attach ($attachment, key => $value...)	684	=item $attachable->attach ($attachment, key => $value...)
385		685
…		…
499	our @CB_TYPE = (); # registry for type (cf-object class) based events	799	our @CB_TYPE = (); # registry for type (cf-object class) based events
500	our @CB_MAP = ();	800	our @CB_MAP = ();
501		801
502	my %attachment;	802	my %attachment;
503		803
		804	sub cf::attachable::thawer_merge {
		805	# simply override everything except _meta
		806	local $_[0]{_meta};
		807	%{$_[0]} = %{$_[1]};
		808	}
		809
504	sub _attach_cb($$$$) {	810	sub _attach_cb($$$$) {
505	my ($registry, $event, $prio, $cb) = @_;	811	my ($registry, $event, $prio, $cb) = @_;
506		812
507	use sort 'stable';	813	use sort 'stable';
508		814
…		…
542	$registry = $CB_TYPE[$object_type] ||= [];	848	$registry = $CB_TYPE[$object_type] ||= [];
543		849
544	} elsif ($type eq "subtype") {	850	} elsif ($type eq "subtype") {
545	defined $object_type or Carp::croak "subtype specified without type";	851	defined $object_type or Carp::croak "subtype specified without type";
546	my $object_subtype = shift @arg;	852	my $object_subtype = shift @arg;
547	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	853	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
548		854
549	} elsif ($type eq "package") {	855	} elsif ($type eq "package") {
550	my $pkg = shift @arg;	856	my $pkg = shift @arg;
551		857
552	while (my ($name, $id) = each %cb_id) {	858	while (my ($name, $id) = each %cb_id) {
…		…
581	_attach $registry, $klass, @attach;	887	_attach $registry, $klass, @attach;
582	}	888	}
583		889
584	$obj->{$name} = \%arg;	890	$obj->{$name} = \%arg;
585	} else {	891	} else {
586	warn "object uses attachment '$name' that is not available, postponing.\n";	892	warn "object uses attachment '$name' which is not available, postponing.\n";
587	}	893	}
588		894
589	$obj->{_attachment}{$name} = undef;	895	$obj->{_attachment}{$name} = undef;
590	}	896	}
591		897
…		…
593	if (ref $_[0]) {	899	if (ref $_[0]) {
594	_object_attach @_;	900	_object_attach @_;
595	} else {	901	} else {
596	_attach shift->_attach_registry, @_;	902	_attach shift->_attach_registry, @_;
597	}	903	}
		904	_recalc_want;
598	};	905	};
599		906
600	# all those should be optimised	907	# all those should be optimised
601	sub cf::attachable::detach {	908	sub cf::attachable::detach {
602	my ($obj, $name) = @_;	909	my ($obj, $name) = @_;
…		…
605	delete $obj->{_attachment}{$name};	912	delete $obj->{_attachment}{$name};
606	reattach ($obj);	913	reattach ($obj);
607	} else {	914	} else {
608	Carp::croak "cannot, currently, detach class attachments";	915	Carp::croak "cannot, currently, detach class attachments";
609	}	916	}
		917	_recalc_want;
610	};	918	};
611		919
612	sub cf::attachable::attached {	920	sub cf::attachable::attached {
613	my ($obj, $name) = @_;	921	my ($obj, $name) = @_;
614		922
…		…
629	";	937	";
630	die if $@;	938	die if $@;
631	}	939	}
632		940
633	our $override;	941	our $override;
634	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	942	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
635		943
636	sub override {	944	sub override {
637	$override = 1;	945	$override = 1;
638	@invoke_results = ();	946	@INVOKE_RESULTS = (@_);
639	}	947	}
640		948
641	sub do_invoke {	949	sub do_invoke {
642	my $event = shift;	950	my $event = shift;
643	my $callbacks = shift;	951	my $callbacks = shift;
644		952
645	@invoke_results = ();	953	@INVOKE_RESULTS = ();
646		954
647	local $override;	955	local $override;
648		956
649	for (@$callbacks) {	957	for (@$callbacks) {
650	eval { &{$_->[1]} };	958	eval { &{$_->[1]} };
…		…
667		975
668	Generate an object-specific event with the given arguments.	976	Generate an object-specific event with the given arguments.
669		977
670	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	978	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
671	removed in future versions), and there is no public API to access override	979	removed in future versions), and there is no public API to access override
672	results (if you must, access C<@cf::invoke_results> directly).	980	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
673		981
674	=back	982	=back
675		983
676	=cut	984	=cut
677		985
678	#############################################################################	986	#############################################################################
679	# object support	987	# object support
		988
		989	sub _object_equal($$);
		990	sub _object_equal($$) {
		991	my ($a, $b) = @_;
		992
		993	return 0 unless (ref $a) eq (ref $b);
		994
		995	if ("HASH" eq ref $a) {
		996	my @ka = keys %$a;
		997	my @kb = keys %$b;
		998
		999	return 0 if @ka != @kb;
		1000
		1001	for (0 .. $#ka) {
		1002	return 0 unless $ka[$_] eq $kb[$_];
		1003	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1004	}
		1005
		1006	} elsif ("ARRAY" eq ref $a) {
		1007
		1008	return 0 if @$a != @$b;
		1009
		1010	for (0 .. $#$a) {
		1011	return 0 unless _object_equal $a->[$_], $b->[$_];
		1012	}
		1013
		1014	} elsif ($a ne $b) {
		1015	return 0;
		1016	}
		1017
		1018	1
		1019	}
		1020
		1021	our $SLOW_MERGES;#d#
		1022	sub _can_merge {
		1023	my ($ob1, $ob2) = @_;
		1024
		1025	++$SLOW_MERGES;#d#
		1026
		1027	# we do the slow way here
		1028	return _object_equal $ob1, $ob2
		1029	}
680		1030
681	sub reattach {	1031	sub reattach {
682	# basically do the same as instantiate, without calling instantiate	1032	# basically do the same as instantiate, without calling instantiate
683	my ($obj) = @_;	1033	my ($obj) = @_;
		1034
		1035	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
684		1036
685	my $registry = $obj->registry;	1037	my $registry = $obj->registry;
686		1038
687	@$registry = ();	1039	@$registry = ();
688		1040
…		…
703	cf::attachable->attach (	1055	cf::attachable->attach (
704	prio => -1000000,	1056	prio => -1000000,
705	on_instantiate => sub {	1057	on_instantiate => sub {
706	my ($obj, $data) = @_;	1058	my ($obj, $data) = @_;
707		1059
708	$data = from_json $data;	1060	$data = decode_json $data;
709		1061
710	for (@$data) {	1062	for (@$data) {
711	my ($name, $args) = @$_;	1063	my ($name, $args) = @$_;
712		1064
713	$obj->attach ($name, %{$args || {} });	1065	$obj->attach ($name, %{$args || {} });
…		…
729	sub object_freezer_save {	1081	sub object_freezer_save {
730	my ($filename, $rdata, $objs) = @_;	1082	my ($filename, $rdata, $objs) = @_;
731		1083
732	sync_job {	1084	sync_job {
733	if (length $$rdata) {	1085	if (length $$rdata) {
		1086	utf8::decode (my $decname = $filename);
734	warn sprintf "saving %s (%d,%d)\n",	1087	warn sprintf "saving %s (%d,%d)\n",
735	$filename, length $$rdata, scalar @$objs;	1088	$decname, length $$rdata, scalar @$objs;
736		1089
737	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1090	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
738	chmod SAVE_MODE, $fh;	1091	chmod SAVE_MODE, $fh;
739	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1092	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
740	aio_fsync $fh;	1093	aio_fsync $fh if $cf::USE_FSYNC;
741	close $fh;	1094	close $fh;
742		1095
743	if (@$objs) {	1096	if (@$objs) {
744	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1097	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
745	chmod SAVE_MODE, $fh;	1098	chmod SAVE_MODE, $fh;
746	my $data = Storable::nfreeze { version => 1, objs => $objs };	1099	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
747	aio_write $fh, 0, (length $data), $data, 0;	1100	aio_write $fh, 0, (length $data), $data, 0;
748	aio_fsync $fh;	1101	aio_fsync $fh if $cf::USE_FSYNC;
749	close $fh;	1102	close $fh;
750	aio_rename "$filename.pst~", "$filename.pst";	1103	aio_rename "$filename.pst~", "$filename.pst";
751	}	1104	}
752	} else {	1105	} else {
753	aio_unlink "$filename.pst";	1106	aio_unlink "$filename.pst";
…		…
759	}	1112	}
760	} else {	1113	} else {
761	aio_unlink $filename;	1114	aio_unlink $filename;
762	aio_unlink "$filename.pst";	1115	aio_unlink "$filename.pst";
763	}	1116	}
764	}	1117	};
765	}	1118	}
766		1119
767	sub object_freezer_as_string {	1120	sub object_freezer_as_string {
768	my ($rdata, $objs) = @_;	1121	my ($rdata, $objs) = @_;
769		1122
…		…
781	or return;	1134	or return;
782		1135
783	unless (aio_stat "$filename.pst") {	1136	unless (aio_stat "$filename.pst") {
784	(aio_load "$filename.pst", $av) >= 0	1137	(aio_load "$filename.pst", $av) >= 0
785	or return;	1138	or return;
		1139
786	$av = eval { (Storable::thaw $av)->{objs} };	1140	my $st = eval { Coro::Storable::thaw $av };
		1141	$av = $st->{objs};
787	}	1142	}
788		1143
		1144	utf8::decode (my $decname = $filename);
789	warn sprintf "loading %s (%d)\n",	1145	warn sprintf "loading %s (%d,%d)\n",
790	$filename, length $data, scalar @{$av || []};#d#	1146	$decname, length $data, scalar @{$av || []};
		1147
791	return ($data, $av);	1148	($data, $av)
792	}	1149	}
		1150
		1151	=head2 COMMAND CALLBACKS
		1152
		1153	=over 4
		1154
		1155	=cut
793		1156
794	#############################################################################	1157	#############################################################################
795	# command handling &c	1158	# command handling &c
796		1159
797	=item cf::register_command $name => \&callback($ob,$args);	1160	=item cf::register_command $name => \&callback($ob,$args);
…		…
810	push @{ $COMMAND{$name} }, [$caller, $cb];	1173	push @{ $COMMAND{$name} }, [$caller, $cb];
811	}	1174	}
812		1175
813	=item cf::register_extcmd $name => \&callback($pl,$packet);	1176	=item cf::register_extcmd $name => \&callback($pl,$packet);
814		1177
815	Register a callbackf ro execution when the client sends an extcmd packet.	1178	Register a callback for execution when the client sends an (synchronous)
		1179	extcmd packet. Ext commands will be processed in the order they are
		1180	received by the server, like other user commands. The first argument is
		1181	the logged-in player. Ext commands can only be processed after a player
		1182	has logged in successfully.
816		1183
817	If the callback returns something, it is sent back as if reply was being	1184	If the callback returns something, it is sent back as if reply was being
818	called.	1185	called.
819		1186
		1187	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1188
		1189	Register a callback for execution when the client sends an (asynchronous)
		1190	exticmd packet. Exti commands are processed by the server as soon as they
		1191	are received, i.e. out of order w.r.t. other commands. The first argument
		1192	is a client socket. Exti commands can be received anytime, even before
		1193	log-in.
		1194
		1195	If the callback returns something, it is sent back as if reply was being
		1196	called.
		1197
820	=cut	1198	=cut
821		1199
822	sub register_extcmd {	1200	sub register_extcmd {
823	my ($name, $cb) = @_;	1201	my ($name, $cb) = @_;
824		1202
825	$EXTCMD{$name} = $cb;	1203	$EXTCMD{$name} = $cb;
		1204	}
		1205
		1206	sub register_exticmd {
		1207	my ($name, $cb) = @_;
		1208
		1209	$EXTICMD{$name} = $cb;
826	}	1210	}
827		1211
828	cf::player->attach (	1212	cf::player->attach (
829	on_command => sub {	1213	on_command => sub {
830	my ($pl, $name, $params) = @_;	1214	my ($pl, $name, $params) = @_;
…		…
839	cf::override;	1223	cf::override;
840	},	1224	},
841	on_extcmd => sub {	1225	on_extcmd => sub {
842	my ($pl, $buf) = @_;	1226	my ($pl, $buf) = @_;
843		1227
844	my $msg = eval { from_json $buf };	1228	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
845		1229
846	if (ref $msg) {	1230	if (ref $msg) {
		1231	my ($type, $reply, @payload) =
		1232	"ARRAY" eq ref $msg
		1233	? @$msg
		1234	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1235
		1236	my @reply;
		1237
847	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1238	if (my $cb = $EXTCMD{$type}) {
848	if (my %reply = $cb->($pl, $msg)) {	1239	@reply = $cb->($pl, @payload);
849	$pl->ext_reply ($msg->{msgid}, %reply);
850	}
851	}	1240	}
		1241
		1242	$pl->ext_reply ($reply, @reply)
		1243	if $reply;
		1244
852	} else {	1245	} else {
853	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1246	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
854	}	1247	}
855		1248
856	cf::override;	1249	cf::override;
857	},	1250	},
858	);	1251	);
859		1252
860	sub load_extension {
861	my ($path) = @_;
862
863	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
864	my $base = $1;
865	my $pkg = $1;
866	$pkg =~ s/[^[:word:]]/_/g;
867	$pkg = "ext::$pkg";
868
869	warn "... loading '$path' into '$pkg'\n";
870
871	open my $fh, "<:utf8", $path
872	or die "$path: $!";
873
874	my $source =
875	"package $pkg; use strict; use utf8;\n"
876	. "#line 1 \"$path\"\n{\n"
877	. (do { local $/; <$fh> })
878	. "\n};\n1";
879
880	unless (eval $source) {
881	my $msg = $@ ? "$path: $@\n"
882	: "extension disabled.\n";
883	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
884	warn $@;
885	warn "mandatory extension failed to load, exiting.\n";
886	exit 1;
887	}
888	die $@;
889	}
890
891	push @EXTS, $pkg;
892	}
893
894	sub load_extensions {	1253	sub load_extensions {
		1254	cf::sync_job {
		1255	my %todo;
		1256
895	for my $ext (<$LIBDIR/*.ext>) {	1257	for my $path (<$LIBDIR/*.ext>) {
896	next unless -r $ext;	1258	next unless -r $path;
897	eval {	1259
898	load_extension $ext;	1260	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1261	my $base = $1;
		1262	my $pkg = $1;
		1263	$pkg =~ s/[^[:word:]]/_/g;
		1264	$pkg = "ext::$pkg";
		1265
		1266	open my $fh, "<:utf8", $path
		1267	or die "$path: $!";
		1268
		1269	my $source = do { local $/; <$fh> };
		1270
		1271	my %ext = (
		1272	path => $path,
		1273	base => $base,
		1274	pkg => $pkg,
		1275	);
		1276
		1277	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1278	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1279
		1280	$ext{source} =
		1281	"package $pkg; use strict; use utf8;\n"
		1282	. "#line 1 \"$path\"\n{\n"
		1283	. $source
		1284	. "\n};\n1";
		1285
		1286	$todo{$base} = \%ext;
		1287	}
		1288
		1289	my %done;
		1290	while (%todo) {
		1291	my $progress;
		1292
		1293	while (my ($k, $v) = each %todo) {
		1294	for (split /,\s*/, $v->{meta}{depends}) {
		1295	goto skip
		1296	unless exists $done{$_};
		1297	}
		1298
		1299	warn "... loading '$k' into '$v->{pkg}'\n";
		1300
		1301	unless (eval $v->{source}) {
		1302	my $msg = $@ ? "$v->{path}: $@\n"
		1303	: "$v->{base}: extension inactive.\n";
		1304
		1305	if (exists $v->{meta}{mandatory}) {
		1306	warn $msg;
		1307	warn "mandatory extension failed to load, exiting.\n";
		1308	exit 1;
		1309	}
		1310
		1311	warn $msg;
		1312	}
		1313
		1314	$done{$k} = delete $todo{$k};
		1315	push @EXTS, $v->{pkg};
		1316	$progress = 1;
899	1	1317	}
900	} or warn "$ext not loaded: $@";	1318
		1319	skip:
		1320	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1321	unless $progress;
		1322	}
901	}	1323	};
902	}	1324	}
903		1325
904	#############################################################################	1326	#############################################################################
905		1327
		1328	=back
		1329
906	=head2 CORE EXTENSIONS	1330	=head2 CORE EXTENSIONS
907		1331
908	Functions and methods that extend core crossfire objects.	1332	Functions and methods that extend core crossfire objects.
909		1333
910	=cut	1334	=cut
…		…
915		1339
916	=head3 cf::player	1340	=head3 cf::player
917		1341
918	=over 4	1342	=over 4
919		1343
		1344	=item cf::player::num_playing
		1345
		1346	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1347
		1348	=cut
		1349
		1350	sub num_playing {
		1351	scalar grep
		1352	$_->ob->map
		1353	&& !$_->hidden
		1354	&& !$_->ob->flag (cf::FLAG_WIZ),
		1355	cf::player::list
		1356	}
		1357
920	=item cf::player::find $login	1358	=item cf::player::find $login
921		1359
922	Returns the given player object, loading it if necessary (might block).	1360	Returns the given player object, loading it if necessary (might block).
923		1361
924	=cut	1362	=cut
925		1363
926	sub playerdir($) {	1364	sub playerdir($) {
927	cf::localdir	1365	"$PLAYERDIR/"
928	. "/"
929	. cf::playerdir
930	. "/"
931	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1366	. (ref $_[0] ? $_[0]->ob->name : $_[0])
932	}	1367	}
933		1368
934	sub path($) {	1369	sub path($) {
935	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1370	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
936		1371
937	(playerdir $login) . "/$login.pl"	1372	(playerdir $login) . "/playerdata"
938	}	1373	}
939		1374
940	sub find_active($) {	1375	sub find_active($) {
941	$cf::PLAYER{$_[0]}	1376	$cf::PLAYER{$_[0]}
942	and $cf::PLAYER{$_[0]}->active	1377	and $cf::PLAYER{$_[0]}->active
…		…
945		1380
946	sub exists($) {	1381	sub exists($) {
947	my ($login) = @_;	1382	my ($login) = @_;
948		1383
949	$cf::PLAYER{$login}	1384	$cf::PLAYER{$login}
950	or cf::sync_job { !aio_stat $login }	1385	or cf::sync_job { !aio_stat path $login }
951	}	1386	}
952		1387
953	sub find($) {	1388	sub find($) {
954	return $cf::PLAYER{$_[0]} || do {	1389	return $cf::PLAYER{$_[0]} || do {
955	my $login = $_[0];	1390	my $login = $_[0];
956		1391
957	my $guard = cf::lock_acquire "user_find:$login";	1392	my $guard = cf::lock_acquire "user_find:$login";
958		1393
959	$cf::PLAYER{$_[0]} || do {	1394	$cf::PLAYER{$_[0]} || do {
960	my $pl = load_pl path $login	1395	# rename old playerfiles to new ones
		1396	#TODO: remove when no longer required
		1397	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1398	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1399	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1400	aio_unlink +(playerdir $login) . "/$login.pl";
		1401
		1402	my $f = new_from_file cf::object::thawer path $login
961	or return;	1403	or return;
		1404
		1405	my $pl = cf::player::load_pl $f
		1406	or return;
		1407	local $cf::PLAYER_LOADING{$login} = $pl;
		1408	$f->resolve_delayed_derefs;
962	$cf::PLAYER{$login} = $pl	1409	$cf::PLAYER{$login} = $pl
963	}	1410	}
964	}	1411	}
965	}	1412	}
966		1413
…		…
976		1423
977	aio_mkdir playerdir $pl, 0770;	1424	aio_mkdir playerdir $pl, 0770;
978	$pl->{last_save} = $cf::RUNTIME;	1425	$pl->{last_save} = $cf::RUNTIME;
979		1426
980	$pl->save_pl ($path);	1427	$pl->save_pl ($path);
981	Coro::cede;	1428	cf::cede_to_tick;
982	}	1429	}
983		1430
984	sub new($) {	1431	sub new($) {
985	my ($login) = @_;	1432	my ($login) = @_;
986		1433
…		…
992	$cf::PLAYER{$login} = $self;	1439	$cf::PLAYER{$login} = $self;
993		1440
994	$self	1441	$self
995	}	1442	}
996		1443
		1444	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1445
		1446	=cut
		1447
		1448	sub send_msg {
		1449	my $ns = shift->ns
		1450	or return;
		1451	$ns->send_msg (@_);
		1452	}
		1453
997	=item $pl->quit_character	1454	=item $pl->quit_character
998		1455
999	Nukes the player without looking back. If logged in, the connection will	1456	Nukes the player without looking back. If logged in, the connection will
1000	be destroyed. May block for a long time.	1457	be destroyed. May block for a long time.
1001		1458
1002	=cut	1459	=cut
1003		1460
1004	sub quit_character {	1461	sub quit_character {
1005	my ($pl) = @_;	1462	my ($pl) = @_;
		1463
		1464	my $name = $pl->ob->name;
1006		1465
1007	$pl->{deny_save} = 1;	1466	$pl->{deny_save} = 1;
1008	$pl->password ("*"); # this should lock out the player until we nuked the dir	1467	$pl->password ("*"); # this should lock out the player until we nuked the dir
1009		1468
1010	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1469	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1015	my $path = playerdir $pl;	1474	my $path = playerdir $pl;
1016	my $temp = "$path~$cf::RUNTIME~deleting~";	1475	my $temp = "$path~$cf::RUNTIME~deleting~";
1017	aio_rename $path, $temp;	1476	aio_rename $path, $temp;
1018	delete $cf::PLAYER{$pl->ob->name};	1477	delete $cf::PLAYER{$pl->ob->name};
1019	$pl->destroy;	1478	$pl->destroy;
		1479
		1480	my $prefix = qr<^~\Q$name\E/>;
		1481
		1482	# nuke player maps
		1483	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1484
1020	IO::AIO::aio_rmtree $temp;	1485	IO::AIO::aio_rmtree $temp;
		1486	}
		1487
		1488	=item $pl->kick
		1489
		1490	Kicks a player out of the game. This destroys the connection.
		1491
		1492	=cut
		1493
		1494	sub kick {
		1495	my ($pl, $kicker) = @_;
		1496
		1497	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1498	$pl->killer ("kicked");
		1499	$pl->ns->destroy;
1021	}	1500	}
1022		1501
1023	=item cf::player::list_logins	1502	=item cf::player::list_logins
1024		1503
1025	Returns am arrayref of all valid playernames in the system, can take a	1504	Returns am arrayref of all valid playernames in the system, can take a
1026	while and may block, so not sync_job-capable, ever.	1505	while and may block, so not sync_job-capable, ever.
1027		1506
1028	=cut	1507	=cut
1029		1508
1030	sub list_logins {	1509	sub list_logins {
1031	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1510	my $dirs = aio_readdir $PLAYERDIR
1032	or return [];	1511	or return [];
1033		1512
1034	my @logins;	1513	my @logins;
1035		1514
1036	for my $login (@$dirs) {	1515	for my $login (@$dirs) {
		1516	my $path = path $login;
		1517
		1518	# a .pst is a dead give-away for a valid player
		1519	unless (-e "$path.pst") {
1037	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1520	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1038	aio_read $fh, 0, 512, my $buf, 0 or next;	1521	aio_read $fh, 0, 512, my $buf, 0 or next;
1039	$buf !~ /^password -------------$/m or next; # official not-valid tag	1522	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1523	}
1040		1524
1041	utf8::decode $login;	1525	utf8::decode $login;
1042	push @logins, $login;	1526	push @logins, $login;
1043	}	1527	}
1044		1528
…		…
1052		1536
1053	=cut	1537	=cut
1054		1538
1055	sub maps($) {	1539	sub maps($) {
1056	my ($pl) = @_;	1540	my ($pl) = @_;
		1541
		1542	$pl = ref $pl ? $pl->ob->name : $pl;
1057		1543
1058	my $files = aio_readdir playerdir $pl	1544	my $files = aio_readdir playerdir $pl
1059	or return;	1545	or return;
1060		1546
1061	my @paths;	1547	my @paths;
…		…
1063	for (@$files) {	1549	for (@$files) {
1064	utf8::decode $_;	1550	utf8::decode $_;
1065	next if /\.(?:pl|pst)$/;	1551	next if /\.(?:pl|pst)$/;
1066	next unless /^$PATH_SEP/o;	1552	next unless /^$PATH_SEP/o;
1067		1553
1068	s/\.map$//;	1554	push @paths, cf::map::normalise "~$pl/$_";
1069	push @paths, "~" . $pl->ob->name . "/" . $_;
1070	}	1555	}
1071		1556
1072	\@paths	1557	\@paths
1073	}	1558	}
1074		1559
		1560	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1561
		1562	Expand crossfire pod fragments into protocol xml.
		1563
		1564	=cut
		1565
		1566	use re 'eval';
		1567
		1568	my $group;
		1569	my $interior; $interior = qr{
		1570	# match a pod interior sequence sans C<< >>
		1571	(?:
		1572	\ (.*?)\ (?{ $group = $^N })
		1573	| < (??{$interior}) >
		1574	)
		1575	}x;
		1576
		1577	sub expand_cfpod {
		1578	my ($self, $pod) = @_;
		1579
		1580	my $xml;
		1581
		1582	while () {
		1583	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1584	$group = $1;
		1585
		1586	$group =~ s/&/&amp;/g;
		1587	$group =~ s/</&lt;/g;
		1588
		1589	$xml .= $group;
		1590	} elsif ($pod =~ m%\G
		1591	([BCGHITU])
		1592	<
		1593	(?:
		1594	([^<>]*) (?{ $group = $^N })
		1595	| < $interior >
		1596	)
		1597	>
		1598	%gcsx
		1599	) {
		1600	my ($code, $data) = ($1, $group);
		1601
		1602	if ($code eq "B") {
		1603	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1604	} elsif ($code eq "I") {
		1605	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1606	} elsif ($code eq "U") {
		1607	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1608	} elsif ($code eq "C") {
		1609	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1610	} elsif ($code eq "T") {
		1611	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1612	} elsif ($code eq "G") {
		1613	my ($male, $female) = split /\|/, $data;
		1614	$data = $self->gender ? $female : $male;
		1615	$xml .= expand_cfpod ($self, $data);
		1616	} elsif ($code eq "H") {
		1617	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1618	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1619	"")
		1620	[$self->{hintmode}];
		1621	} else {
		1622	$xml .= "error processing '$code($data)' directive";
		1623	}
		1624	} else {
		1625	if ($pod =~ /\G(.+)/) {
		1626	warn "parse error while expanding $pod (at $1)";
		1627	}
		1628	last;
		1629	}
		1630	}
		1631
		1632	for ($xml) {
		1633	# create single paragraphs (very hackish)
		1634	s/(?<=\S)\n(?=\w)/ /g;
		1635
		1636	# compress some whitespace
		1637	s/\s+\n/\n/g; # ws line-ends
		1638	s/\n\n+/\n/g; # double lines
		1639	s/^\n+//; # beginning lines
		1640	s/\n+$//; # ending lines
		1641	}
		1642
		1643	$xml
		1644	}
		1645
		1646	no re 'eval';
		1647
		1648	sub hintmode {
		1649	$_[0]{hintmode} = $_[1] if @_ > 1;
		1650	$_[0]{hintmode}
		1651	}
		1652
1075	=item $player->ext_reply ($msgid, $msgtype, %msg)	1653	=item $player->ext_reply ($msgid, @msg)
1076		1654
1077	Sends an ext reply to the player.	1655	Sends an ext reply to the player.
1078		1656
1079	=cut	1657	=cut
1080		1658
1081	sub ext_reply($$$%) {	1659	sub ext_reply($$@) {
1082	my ($self, $id, %msg) = @_;	1660	my ($self, $id, @msg) = @_;
1083		1661
1084	$msg{msgid} = $id;	1662	$self->ns->ext_reply ($id, @msg)
1085
1086	$self->send ("ext " . cf::to_json \%msg);
1087	}	1663	}
1088		1664
1089	package cf;	1665	=item $player->ext_msg ($type, @msg)
		1666
		1667	Sends an ext event to the client.
		1668
		1669	=cut
		1670
		1671	sub ext_msg($$@) {
		1672	my ($self, $type, @msg) = @_;
		1673
		1674	$self->ns->ext_msg ($type, @msg);
		1675	}
		1676
		1677	=head3 cf::region
		1678
		1679	=over 4
		1680
		1681	=cut
		1682
		1683	package cf::region;
		1684
		1685	=item cf::region::find_by_path $path
		1686
		1687	Tries to decuce the likely region for a map knowing only its path.
		1688
		1689	=cut
		1690
		1691	sub find_by_path($) {
		1692	my ($path) = @_;
		1693
		1694	my ($match, $specificity);
		1695
		1696	for my $region (list) {
		1697	if ($region->{match} && $path =~ $region->{match}) {
		1698	($match, $specificity) = ($region, $region->specificity)
		1699	if $region->specificity > $specificity;
		1700	}
		1701	}
		1702
		1703	$match
		1704	}
1090		1705
1091	=back	1706	=back
1092
1093		1707
1094	=head3 cf::map	1708	=head3 cf::map
1095		1709
1096	=over 4	1710	=over 4
1097		1711
…		…
1101		1715
1102	use Fcntl;	1716	use Fcntl;
1103	use Coro::AIO;	1717	use Coro::AIO;
1104		1718
1105	use overload	1719	use overload
1106	'""' => \&as_string;	1720	'""' => \&as_string,
		1721	fallback => 1;
1107		1722
1108	our $MAX_RESET = 3600;	1723	our $MAX_RESET = 3600;
1109	our $DEFAULT_RESET = 3000;	1724	our $DEFAULT_RESET = 3000;
1110		1725
1111	sub generate_random_map {	1726	sub generate_random_map {
1112	my ($self, $rmp) = @_;	1727	my ($self, $rmp) = @_;
1113
1114	# mit "rum" bekleckern, nicht	1728	# mit "rum" bekleckern, nicht
1115	$self->_create_random_map (	1729	$self->_create_random_map (
1116	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1730	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1117	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1731	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1118	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1732	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
…		…
1125	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1739	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1126	(cf::region::find $rmp->{region}), $rmp->{custom}	1740	(cf::region::find $rmp->{region}), $rmp->{custom}
1127	)	1741	)
1128	}	1742	}
1129		1743
		1744	=item cf::map->register ($regex, $prio)
		1745
		1746	Register a handler for the map path matching the given regex at the
		1747	givne priority (higher is better, built-in handlers have priority 0, the
		1748	default).
		1749
		1750	=cut
		1751
1130	sub register {	1752	sub register {
1131	my (undef, $regex) = @_;	1753	my (undef, $regex, $prio) = @_;
1132	my $pkg = caller;	1754	my $pkg = caller;
1133		1755
1134	no strict;	1756	no strict;
1135	push @{"$pkg\::ISA"}, __PACKAGE__;	1757	push @{"$pkg\::ISA"}, __PACKAGE__;
1136		1758
1137	$EXT_MAP{$pkg} = qr<$regex>;	1759	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
1138	}	1760	}
1139		1761
1140	# also paths starting with '/'	1762	# also paths starting with '/'
1141	$EXT_MAP{"cf::map"} = qr{^(?=/)};	1763	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1764
		1765	sub thawer_merge {
		1766	my ($self, $merge) = @_;
		1767
		1768	# we have to keep some variables in memory intact
		1769	local $self->{path};
		1770	local $self->{load_path};
		1771
		1772	$self->SUPER::thawer_merge ($merge);
		1773	}
1142		1774
1143	sub normalise {	1775	sub normalise {
1144	my ($path, $base) = @_;	1776	my ($path, $base) = @_;
		1777
		1778	$path = "$path"; # make sure its a string
		1779
		1780	$path =~ s/\.map$//;
1145		1781
1146	# map plan:	1782	# map plan:
1147	#	1783	#
1148	# /! non-realised random map exit (special hack!)	1784	# /! non-realised random map exit (special hack!)
1149	# {... are special paths that are not being touched	1785	# {... are special paths that are not being touched
…		…
1177		1813
1178	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object	1814	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
1179		1815
1180	$path = normalise $path, $base;	1816	$path = normalise $path, $base;
1181		1817
1182	for my $pkg (keys %EXT_MAP) {	1818	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
1183	if ($path =~ $EXT_MAP{$pkg}) {	1819	if ($path =~ $EXT_MAP{$pkg}[1]) {
1184	my $self = bless cf::map::new, $pkg;	1820	my $self = bless cf::map::new, $pkg;
1185	$self->{path} = $path; $self->path ($path);	1821	$self->{path} = $path; $self->path ($path);
1186	$self->init; # pass $1 etc.	1822	$self->init; # pass $1 etc.
1187	return $self;	1823	return $self;
1188	}	1824	}
1189	}	1825	}
1190		1826
1191	Carp::carp "unable to resolve path '$path'.";	1827	Carp::cluck "unable to resolve path '$path' (base '$base').";
1192	()	1828	()
1193	}	1829	}
1194		1830
1195	sub init {	1831	sub init {
1196	my ($self) = @_;	1832	my ($self) = @_;
…		…
1211		1847
1212	# the original (read-only) location	1848	# the original (read-only) location
1213	sub load_path {	1849	sub load_path {
1214	my ($self) = @_;	1850	my ($self) = @_;
1215		1851
1216	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}	1852	"$MAPDIR/$self->{path}.map"
1217	}	1853	}
1218		1854
1219	# the temporary/swap location	1855	# the temporary/swap location
1220	sub save_path {	1856	sub save_path {
1221	my ($self) = @_;	1857	my ($self) = @_;
1222		1858
1223	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1859	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1224	sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $path	1860	"$TMPDIR/$path.map"
1225	}	1861	}
1226		1862
1227	# the unique path, undef == no special unique path	1863	# the unique path, undef == no special unique path
1228	sub uniq_path {	1864	sub uniq_path {
1229	my ($self) = @_;	1865	my ($self) = @_;
1230		1866
1231	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1867	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1232	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1868	"$UNIQUEDIR/$path"
1233	}	1869	}
1234		1870
1235	# and all this just because we cannot iterate over	1871	# and all this just because we cannot iterate over
1236	# all maps in C++...	1872	# all maps in C++...
1237	sub change_all_map_light {	1873	sub change_all_map_light {
…		…
1239		1875
1240	$_->change_map_light ($change)	1876	$_->change_map_light ($change)
1241	for grep $_->outdoor, values %cf::MAP;	1877	for grep $_->outdoor, values %cf::MAP;
1242	}	1878	}
1243		1879
		1880	sub decay_objects {
		1881	my ($self) = @_;
		1882
		1883	return if $self->{deny_reset};
		1884
		1885	$self->do_decay_objects;
		1886	}
		1887
1244	sub unlink_save {	1888	sub unlink_save {
1245	my ($self) = @_;	1889	my ($self) = @_;
1246		1890
1247	utf8::encode (my $save = $self->save_path);	1891	utf8::encode (my $save = $self->save_path);
1248	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink $save;	1892	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1249	IO::AIO::aioreq_pri 4; IO::AIO::aio_unlink "$save.pst";	1893	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1250	}	1894	}
1251		1895
1252	sub load_header_from($) {	1896	sub load_header_from($) {
1253	my ($self, $path) = @_;	1897	my ($self, $path) = @_;
1254		1898
1255	utf8::encode $path;	1899	utf8::encode $path;
1256	aio_open $path, O_RDONLY, 0	1900	my $f = new_from_file cf::object::thawer $path
1257	or return;	1901	or return;
1258		1902
1259	$self->_load_header ($path)	1903	$self->_load_header ($f)
1260	or return;	1904	or return;
1261		1905
		1906	local $MAP_LOADING{$self->{path}} = $self;
		1907	$f->resolve_delayed_derefs;
		1908
1262	$self->{load_path} = $path;	1909	$self->{load_path} = $path;
1263		1910
1264	1	1911	1
1265	}	1912	}
1266		1913
1267	sub load_orig {	1914	sub load_header_orig {
1268	my ($self) = @_;	1915	my ($self) = @_;
1269		1916
1270	$self->load_header_from ($self->load_path)	1917	$self->load_header_from ($self->load_path)
1271	}	1918	}
1272		1919
1273	sub load_temp {	1920	sub load_header_temp {
1274	my ($self) = @_;	1921	my ($self) = @_;
1275		1922
1276	$self->load_header_from ($self->save_path)	1923	$self->load_header_from ($self->save_path)
		1924	}
		1925
		1926	sub prepare_temp {
		1927	my ($self) = @_;
		1928
		1929	$self->last_access ((delete $self->{last_access})
		1930	|| $cf::RUNTIME); #d#
		1931	# safety
		1932	$self->{instantiate_time} = $cf::RUNTIME
		1933	if $self->{instantiate_time} > $cf::RUNTIME;
		1934	}
		1935
		1936	sub prepare_orig {
		1937	my ($self) = @_;
		1938
		1939	$self->{load_original} = 1;
		1940	$self->{instantiate_time} = $cf::RUNTIME;
		1941	$self->last_access ($cf::RUNTIME);
		1942	$self->instantiate;
1277	}	1943	}
1278		1944
1279	sub load_header {	1945	sub load_header {
1280	my ($self) = @_;	1946	my ($self) = @_;
1281		1947
1282	if ($self->load_temp) {	1948	if ($self->load_header_temp) {
1283	$self->last_access ((delete $self->{last_access})	1949	$self->prepare_temp;
1284	|| $cf::RUNTIME); #d#
1285	# safety
1286	$self->{instantiate_time} = $cf::RUNTIME
1287	if $self->{instantiate_time} > $cf::RUNTIME;
1288	} else {	1950	} else {
1289	$self->load_orig	1951	$self->load_header_orig
1290	or return;	1952	or return;
1291		1953	$self->prepare_orig;
1292	$self->{load_original} = 1;
1293	$self->{instantiate_time} = $cf::RUNTIME;
1294	$self->last_access ($cf::RUNTIME);
1295	$self->instantiate;
1296	}	1954	}
		1955
		1956	$self->{deny_reset} = 1
		1957	if $self->no_reset;
		1958
		1959	$self->default_region (cf::region::find_by_path $self->{path})
		1960	unless $self->default_region;
1297		1961
1298	1	1962	1
1299	}	1963	}
1300		1964
1301	sub find;	1965	sub find;
1302	sub find {	1966	sub find {
1303	my ($path, $origin) = @_;	1967	my ($path, $origin) = @_;
1304		1968
1305	$path = normalise $path, $origin && $origin->path;	1969	$path = normalise $path, $origin && $origin->path;
1306		1970
		1971	cf::lock_wait "map_data:$path";#d#remove
1307	cf::lock_wait "map_find:$path";	1972	cf::lock_wait "map_find:$path";
1308		1973
1309	$cf::MAP{$path} || do {	1974	$cf::MAP{$path} || do {
1310	my $guard = cf::lock_acquire "map_find:$path";	1975	my $guard1 = cf::lock_acquire "map_find:$path";
		1976	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
		1977
1311	my $map = new_from_path cf::map $path	1978	my $map = new_from_path cf::map $path
1312	or return;	1979	or return;
1313		1980
1314	$map->{last_save} = $cf::RUNTIME;	1981	$map->{last_save} = $cf::RUNTIME;
1315		1982
1316	$map->load_header	1983	$map->load_header
1317	or return;	1984	or return;
1318		1985
1319	if ($map->should_reset) {	1986	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1987	# doing this can freeze the server in a sync job, obviously
		1988	#$cf::WAIT_FOR_TICK->wait;
		1989	undef $guard1;
		1990	undef $guard2;
1320	$map->reset;	1991	$map->reset;
1321	undef $guard;
1322	$map = find $path	1992	return find $path;
1323	or return;
1324	}	1993	}
1325		1994
1326	$cf::MAP{$path} = $map	1995	$cf::MAP{$path} = $map
1327	}	1996	}
1328	}	1997	}
		1998
		1999	sub pre_load { }
		2000	sub post_load { }
1329		2001
1330	sub load {	2002	sub load {
1331	my ($self) = @_;	2003	my ($self) = @_;
1332		2004
		2005	local $self->{deny_reset} = 1; # loading can take a long time
		2006
1333	my $path = $self->{path};	2007	my $path = $self->{path};
		2008
		2009	{
1334	my $guard = cf::lock_acquire "map_load:$path";	2010	my $guard = cf::lock_acquire "map_data:$path";
1335		2011
		2012	return unless $self->valid;
1336	return if $self->in_memory != cf::MAP_SWAPPED;	2013	return unless $self->in_memory == cf::MAP_SWAPPED;
1337		2014
1338	$self->in_memory (cf::MAP_LOADING);	2015	$self->in_memory (cf::MAP_LOADING);
1339		2016
1340	$self->alloc;	2017	$self->alloc;
1341	$self->_load_objects ($self->{load_path}, 1)	2018
		2019	$self->pre_load;
		2020	cf::cede_to_tick;
		2021
		2022	my $f = new_from_file cf::object::thawer $self->{load_path};
		2023	$f->skip_block;
		2024	$self->_load_objects ($f)
1342	or return;	2025	or return;
1343		2026
1344	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2027	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1345	if delete $self->{load_original};	2028	if delete $self->{load_original};
1346		2029
1347	if (my $uniq = $self->uniq_path) {	2030	if (my $uniq = $self->uniq_path) {
1348	utf8::encode $uniq;	2031	utf8::encode $uniq;
1349	if (aio_open $uniq, O_RDONLY, 0) {	2032	unless (aio_stat $uniq) {
		2033	if (my $f = new_from_file cf::object::thawer $uniq) {
1350	$self->clear_unique_items;	2034	$self->clear_unique_items;
1351	$self->_load_objects ($uniq, 0);	2035	$self->_load_objects ($f);
		2036	$f->resolve_delayed_derefs;
		2037	}
1352	}	2038	}
1353	}	2039	}
1354		2040
1355	Coro::cede;	2041	$f->resolve_delayed_derefs;
1356		2042
		2043	cf::cede_to_tick;
1357	# now do the right thing for maps	2044	# now do the right thing for maps
1358	$self->link_multipart_objects;	2045	$self->link_multipart_objects;
1359
1360	unless ($self->{deny_activate}) {
1361	$self->decay_objects;
1362	$self->fix_auto_apply;
1363	$self->update_buttons;
1364	Coro::cede;
1365	$self->set_darkness_map;
1366	$self->difficulty ($self->estimate_difficulty)	2046	$self->difficulty ($self->estimate_difficulty)
1367	unless $self->difficulty;	2047	unless $self->difficulty;
1368	Coro::cede;	2048	cf::cede_to_tick;
		2049
		2050	unless ($self->{deny_activate}) {
		2051	$self->decay_objects;
		2052	$self->fix_auto_apply;
		2053	$self->update_buttons;
		2054	cf::cede_to_tick;
		2055	$self->set_darkness_map;
		2056	cf::cede_to_tick;
1369	$self->activate;	2057	$self->activate;
1370	}	2058	}
1371		2059
		2060	$self->{last_save} = $cf::RUNTIME;
		2061	$self->last_access ($cf::RUNTIME);
		2062
1372	$self->in_memory (cf::MAP_IN_MEMORY);	2063	$self->in_memory (cf::MAP_IN_MEMORY);
		2064	}
		2065
		2066	$self->post_load;
1373	}	2067	}
1374		2068
1375	sub customise_for {	2069	sub customise_for {
1376	my ($self, $ob) = @_;	2070	my ($self, $ob) = @_;
1377		2071
1378	return find "~" . $ob->name . "/" . $self->{path}	2072	return find "~" . $ob->name . "/" . $self->{path}
1379	if $self->per_player;	2073	if $self->per_player;
1380		2074
		2075	# return find "?party/" . $ob->name . "/" . $self->{path}
		2076	# if $self->per_party;
		2077
1381	$self	2078	$self
1382	}	2079	}
1383		2080
1384	# find and load all maps in the 3x3 area around a map	2081	# find and load all maps in the 3x3 area around a map
1385	sub load_diag {	2082	sub load_neighbours {
1386	my ($map) = @_;	2083	my ($map) = @_;
1387		2084
1388	my @diag; # diagonal neighbours	2085	my @neigh; # diagonal neighbours
1389		2086
1390	for (0 .. 3) {	2087	for (0 .. 3) {
1391	my $neigh = $map->tile_path ($_)	2088	my $neigh = $map->tile_path ($_)
1392	or next;	2089	or next;
1393	$neigh = find $neigh, $map	2090	$neigh = find $neigh, $map
1394	or next;	2091	or next;
1395	$neigh->load;	2092	$neigh->load;
1396		2093
		2094	push @neigh,
1397	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2095	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1398	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2096	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1399	}	2097	}
1400		2098
1401	for (@diag) {	2099	for (grep defined $_->[0], @neigh) {
		2100	my ($path, $origin) = @$_;
1402	my $neigh = find @$_	2101	my $neigh = find $path, $origin
1403	or next;	2102	or next;
1404	$neigh->load;	2103	$neigh->load;
1405	}	2104	}
1406	}	2105	}
1407		2106
…		…
1412	}	2111	}
1413		2112
1414	sub do_load_sync {	2113	sub do_load_sync {
1415	my ($map) = @_;	2114	my ($map) = @_;
1416		2115
		2116	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2117	if $Coro::current == $Coro::main;
		2118
1417	cf::sync_job { $map->load };	2119	cf::sync_job { $map->load };
1418	}	2120	}
1419		2121
1420	our %MAP_PREFETCH;	2122	our %MAP_PREFETCH;
1421	our $MAP_PREFETCHER = Coro::async {	2123	our $MAP_PREFETCHER = undef;
1422	while () {
1423	for my $path (keys %MAP_PREFETCH) {
1424	my $map = find $path
1425	or next;
1426	$map->load;
1427
1428	delete $MAP_PREFETCH{$path};
1429	}
1430	Coro::schedule;
1431	}
1432	};
1433		2124
1434	sub find_async {	2125	sub find_async {
1435	my ($path, $origin) = @_;	2126	my ($path, $origin, $load) = @_;
1436		2127
1437	$path = normalise $path, $origin && $origin->{path};	2128	$path = normalise $path, $origin && $origin->{path};
1438		2129
1439	if (my $map = $cf::MAP{$path}) {	2130	if (my $map = $cf::MAP{$path}) {
1440	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2131	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2132	}
		2133
		2134	$MAP_PREFETCH{$path} |= $load;
		2135
		2136	$MAP_PREFETCHER ||= cf::async {
		2137	$Coro::current->{desc} = "map prefetcher";
		2138
		2139	while (%MAP_PREFETCH) {
		2140	while (my ($k, $v) = each %MAP_PREFETCH) {
		2141	if (my $map = find $k) {
		2142	$map->load if $v;
		2143	}
		2144
		2145	delete $MAP_PREFETCH{$k};
		2146	}
		2147	}
		2148	undef $MAP_PREFETCHER;
1441	}	2149	};
1442
1443	$MAP_PREFETCH{$path} = 0;
1444	$MAP_PREFETCHER->ready;	2150	$MAP_PREFETCHER->prio (6);
1445		2151
1446	()	2152	()
1447	}	2153	}
1448		2154
1449	sub save {	2155	sub save {
1450	my ($self) = @_;	2156	my ($self) = @_;
1451		2157
1452	my $lock = cf::lock_acquire "map_data:" . $self->path;	2158	my $lock = cf::lock_acquire "map_data:$self->{path}";
1453		2159
1454	$self->{last_save} = $cf::RUNTIME;	2160	$self->{last_save} = $cf::RUNTIME;
1455		2161
1456	return unless $self->dirty;	2162	return unless $self->dirty;
1457		2163
…		…
1463	return if $self->{deny_save};	2169	return if $self->{deny_save};
1464		2170
1465	local $self->{last_access} = $self->last_access;#d#	2171	local $self->{last_access} = $self->last_access;#d#
1466		2172
1467	cf::async {	2173	cf::async {
		2174	$Coro::current->{desc} = "map player save";
1468	$_->contr->save for $self->players;	2175	$_->contr->save for $self->players;
1469	};	2176	};
1470		2177
1471	if ($uniq) {	2178	if ($uniq) {
1472	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2179	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
…		…
1480	my ($self) = @_;	2187	my ($self) = @_;
1481		2188
1482	# save first because save cedes	2189	# save first because save cedes
1483	$self->save;	2190	$self->save;
1484		2191
1485	my $lock = cf::lock_acquire "map_data:" . $self->path;	2192	my $lock = cf::lock_acquire "map_data:$self->{path}";
1486		2193
1487	return if $self->players;	2194	return if $self->players;
1488	return if $self->in_memory != cf::MAP_IN_MEMORY;	2195	return if $self->in_memory != cf::MAP_IN_MEMORY;
1489	return if $self->{deny_save};	2196	return if $self->{deny_save};
1490		2197
		2198	$self->in_memory (cf::MAP_SWAPPED);
		2199
		2200	$self->deactivate;
		2201	$_->clear_links_to ($self) for values %cf::MAP;
1491	$self->clear;	2202	$self->clear;
1492	$self->in_memory (cf::MAP_SWAPPED);
1493	}	2203	}
1494		2204
1495	sub reset_at {	2205	sub reset_at {
1496	my ($self) = @_;	2206	my ($self) = @_;
1497		2207
1498	# TODO: safety, remove and allow resettable per-player maps	2208	# TODO: safety, remove and allow resettable per-player maps
1499	return 1e99 if $self->isa ("ext::map_per_player");
1500	return 1e99 if $self->{deny_reset};	2209	return 1e99 if $self->{deny_reset};
1501		2210
1502	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2211	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1503	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2212	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1504		2213
…		…
1509	my ($self) = @_;	2218	my ($self) = @_;
1510		2219
1511	$self->reset_at <= $cf::RUNTIME	2220	$self->reset_at <= $cf::RUNTIME
1512	}	2221	}
1513		2222
1514	sub rename {
1515	my ($self, $new_path) = @_;
1516
1517	normalise $new_path;
1518
1519	$self->unlink_save;
1520
1521	delete $cf::MAP{$self->path};
1522	$self->{path} = $new_path; $self->path ($self->{path});
1523	$cf::MAP{$self->path} = $self;
1524
1525	$self->save;
1526	}
1527
1528	sub reset {	2223	sub reset {
1529	my ($self) = @_;	2224	my ($self) = @_;
1530		2225
1531	my $lock = cf::lock_acquire "map_data:$self->{path}";	2226	my $lock = cf::lock_acquire "map_data:$self->{path}";
1532		2227
1533	return if $self->players;	2228	return if $self->players;
1534	return if $self->isa ("ext::map_per_player");#d#
1535		2229
1536	warn "resetting map ", $self->path;#d#	2230	warn "resetting map ", $self->path;
		2231
		2232	$self->in_memory (cf::MAP_SWAPPED);
		2233
		2234	# need to save uniques path
		2235	unless ($self->{deny_save}) {
		2236	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2237
		2238	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2239	if $uniq;
		2240	}
1537		2241
1538	delete $cf::MAP{$self->path};	2242	delete $cf::MAP{$self->path};
1539		2243
1540	$self->in_memory (cf::MAP_SWAPPED);	2244	$self->deactivate;
		2245	$_->clear_links_to ($self) for values %cf::MAP;
1541	$self->clear;	2246	$self->clear;
1542
1543	$_->clear_links_to ($self) for values %cf::MAP;
1544		2247
1545	$self->unlink_save;	2248	$self->unlink_save;
1546	$self->destroy;	2249	$self->destroy;
1547	}	2250	}
1548		2251
1549	my $nuke_counter = "aaaa";	2252	my $nuke_counter = "aaaa";
1550		2253
1551	sub nuke {	2254	sub nuke {
1552	my ($self) = @_;	2255	my ($self) = @_;
1553		2256
		2257	{
		2258	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2259
		2260	delete $cf::MAP{$self->path};
		2261
		2262	$self->unlink_save;
		2263
		2264	bless $self, "cf::map";
		2265	delete $self->{deny_reset};
1554	$self->{deny_save} = 1;	2266	$self->{deny_save} = 1;
1555	$self->reset_timeout (1);	2267	$self->reset_timeout (1);
1556	$self->rename ("{nuke}/" . ($nuke_counter++));	2268	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2269
		2270	$cf::MAP{$self->path} = $self;
		2271	}
		2272
1557	$self->reset; # polite request, might not happen	2273	$self->reset; # polite request, might not happen
		2274	}
		2275
		2276	=item $maps = cf::map::tmp_maps
		2277
		2278	Returns an arrayref with all map paths of currently instantiated and saved
		2279	maps. May block.
		2280
		2281	=cut
		2282
		2283	sub tmp_maps() {
		2284	[
		2285	map {
		2286	utf8::decode $_;
		2287	/\.map$/
		2288	? normalise $_
		2289	: ()
		2290	} @{ aio_readdir $TMPDIR or [] }
		2291	]
		2292	}
		2293
		2294	=item $maps = cf::map::random_maps
		2295
		2296	Returns an arrayref with all map paths of currently instantiated and saved
		2297	random maps. May block.
		2298
		2299	=cut
		2300
		2301	sub random_maps() {
		2302	[
		2303	map {
		2304	utf8::decode $_;
		2305	/\.map$/
		2306	? normalise "?random/$_"
		2307	: ()
		2308	} @{ aio_readdir $RANDOMDIR or [] }
		2309	]
1558	}	2310	}
1559		2311
1560	=item cf::map::unique_maps	2312	=item cf::map::unique_maps
1561		2313
1562	Returns an arrayref of paths of all shared maps that have	2314	Returns an arrayref of paths of all shared maps that have
1563	instantiated unique items. May block.	2315	instantiated unique items. May block.
1564		2316
1565	=cut	2317	=cut
1566		2318
1567	sub unique_maps() {	2319	sub unique_maps() {
1568	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2320	[
1569	or return;	2321	map {
1570
1571	my @paths;
1572
1573	for (@$files) {
1574	utf8::decode $_;	2322	utf8::decode $_;
1575	next if /\.pst$/;
1576	next unless /^$PATH_SEP/o;
1577
1578	s/\.map$//;	2323	/\.map$/
1579	push @paths, $_;	2324	? normalise $_
		2325	: ()
		2326	} @{ aio_readdir $UNIQUEDIR or [] }
1580	}	2327	]
1581
1582	\@paths
1583	}	2328	}
1584		2329
1585	package cf;	2330	package cf;
1586		2331
1587	=back	2332	=back
…		…
1605	map { $_, inv_recursive_ $_->inv } @_	2350	map { $_, inv_recursive_ $_->inv } @_
1606	}	2351	}
1607		2352
1608	sub inv_recursive {	2353	sub inv_recursive {
1609	inv_recursive_ inv $_[0]	2354	inv_recursive_ inv $_[0]
		2355	}
		2356
		2357	=item $ref = $ob->ref
		2358
		2359	creates and returns a persistent reference to an objetc that can be stored as a string.
		2360
		2361	=item $ob = cf::object::deref ($refstring)
		2362
		2363	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2364	even if the object actually exists. May block.
		2365
		2366	=cut
		2367
		2368	sub deref {
		2369	my ($ref) = @_;
		2370
		2371	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2372	my ($uuid, $name) = ($1, $2);
		2373	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2374	or return;
		2375	$pl->ob->uuid eq $uuid
		2376	or return;
		2377
		2378	$pl->ob
		2379	} else {
		2380	warn "$ref: cannot resolve object reference\n";
		2381	undef
		2382	}
1610	}	2383	}
1611		2384
1612	package cf;	2385	package cf;
1613		2386
1614	=back	2387	=back
…		…
1633		2406
1634	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2407	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1635		2408
1636	if ($self->{record_replies}) {	2409	if ($self->{record_replies}) {
1637	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2410	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2411
1638	} else {	2412	} else {
		2413	my $pl = $self->contr;
		2414
		2415	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2416	my $dialog = $pl->{npc_dialog};
		2417	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2418
		2419	} else {
1639	$msg = $npc->name . " says: $msg" if $npc;	2420	$msg = $npc->name . " says: $msg" if $npc;
1640	$self->message ($msg, $flags);	2421	$self->message ($msg, $flags);
		2422	}
1641	}	2423	}
		2424	}
		2425
		2426	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2427
		2428	=cut
		2429
		2430	sub cf::object::send_msg {
		2431	my $pl = shift->contr
		2432	or return;
		2433	$pl->send_msg (@_);
1642	}	2434	}
1643		2435
1644	=item $player_object->may ("access")	2436	=item $player_object->may ("access")
1645		2437
1646	Returns wether the given player is authorized to access resource "access"	2438	Returns wether the given player is authorized to access resource "access"
…		…
1678	=cut	2470	=cut
1679		2471
1680	sub link_map {	2472	sub link_map {
1681	unless ($LINK_MAP) {	2473	unless ($LINK_MAP) {
1682	$LINK_MAP = cf::map::find "{link}"	2474	$LINK_MAP = cf::map::find "{link}"
1683	or do { warn "FATAL: unable to provide {link} map, exiting."; exit 1 };	2475	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
1684	$LINK_MAP->load;	2476	$LINK_MAP->load;
1685	}	2477	}
1686		2478
1687	$LINK_MAP	2479	$LINK_MAP
1688	}	2480	}
…		…
1693	$self->deactivate_recursive;	2485	$self->deactivate_recursive;
1694		2486
1695	return if UNIVERSAL::isa $self->map, "ext::map_link";	2487	return if UNIVERSAL::isa $self->map, "ext::map_link";
1696		2488
1697	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2489	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1698	if $self->map;	2490	if $self->map && $self->map->{path} ne "{link}";
1699		2491
1700	$self->enter_map ($LINK_MAP || link_map, 20, 20);	2492	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1701	}	2493	}
1702		2494
1703	sub cf::object::player::leave_link {	2495	sub cf::object::player::leave_link {
1704	my ($self, $map, $x, $y) = @_;	2496	my ($self, $map, $x, $y) = @_;
		2497
		2498	return unless $self->contr->active;
1705		2499
1706	my $link_pos = delete $self->{_link_pos};	2500	my $link_pos = delete $self->{_link_pos};
1707		2501
1708	unless ($map) {	2502	unless ($map) {
1709	# restore original map position	2503	# restore original map position
…		…
1723	# use -1 or undef as default coordinates, not 0, 0	2517	# use -1 or undef as default coordinates, not 0, 0
1724	($x, $y) = ($map->enter_x, $map->enter_y)	2518	($x, $y) = ($map->enter_x, $map->enter_y)
1725	if $x <=0 && $y <= 0;	2519	if $x <=0 && $y <= 0;
1726		2520
1727	$map->load;	2521	$map->load;
1728	$map->load_diag;	2522	$map->load_neighbours;
1729		2523
1730	return unless $self->contr->active;	2524	return unless $self->contr->active;
1731	$self->activate_recursive;	2525	$self->activate_recursive;
		2526
		2527	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1732	$self->enter_map ($map, $x, $y);	2528	$self->enter_map ($map, $x, $y);
1733	}	2529	}
1734		2530
1735	cf::player->attach (	2531	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1736	on_logout => sub {
1737	my ($pl) = @_;
1738		2532
1739	# abort map switching before logout	2533	Moves the player to the given map-path and coordinates by first freezing
1740	if ($pl->ob->{_link_pos}) {	2534	her, loading and preparing them map, calling the provided $check callback
1741	cf::sync_job {	2535	that has to return the map if sucecssful, and then unfreezes the player on
1742	$pl->ob->leave_link	2536	the new (success) or old (failed) map position. In either case, $done will
1743	};	2537	be called at the end of this process.
1744	}
1745	},
1746	on_login => sub {
1747	my ($pl) = @_;
1748		2538
1749	# try to abort aborted map switching on player login :)
1750	# should happen only on crashes
1751	if ($pl->ob->{_link_pos}) {
1752	$pl->ob->enter_link;
1753	(async {
1754	# we need this sleep as the login has a concurrent enter_exit running
1755	# and this sleep increases chances of the player not ending up in scorn
1756	$pl->ob->reply (undef,
1757	"There was an internal problem at your last logout, "
1758	. "the server will try to bring you to your intended destination in a second.",
1759	cf::NDI_RED);
1760	Coro::Timer::sleep 1;
1761	$pl->ob->leave_link;
1762	})->prio (2);
1763	}
1764	},
1765	);
1766
1767	=item $player_object->goto ($path, $x, $y)
1768
1769	=cut	2539	=cut
		2540
		2541	our $GOTOGEN;
1770		2542
1771	sub cf::object::player::goto {	2543	sub cf::object::player::goto {
1772	my ($self, $path, $x, $y) = @_;	2544	my ($self, $path, $x, $y, $check, $done) = @_;
		2545
		2546	# do generation counting so two concurrent goto's will be executed in-order
		2547	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1773		2548
1774	$self->enter_link;	2549	$self->enter_link;
1775		2550
1776	(async {	2551	(async {
1777	my $map = cf::map::find $path;	2552	$Coro::current->{desc} = "player::goto $path $x $y";
		2553
		2554	# *tag paths override both path and x|y
		2555	if ($path =~ /^\*(.*)$/) {
		2556	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2557	my $ob = $obs[rand @obs];
		2558
		2559	# see if we actually can go there
		2560	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2561	$ob = $obs[rand @obs];
		2562	} else {
		2563	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2564	}
		2565	# else put us there anyways for now #d#
		2566
		2567	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2568	} else {
		2569	($path, $x, $y) = (undef, undef, undef);
		2570	}
		2571	}
		2572
		2573	my $map = eval {
		2574	my $map = defined $path ? cf::map::find $path : undef;
		2575
		2576	if ($map) {
1778	$map = $map->customise_for ($self) if $map;	2577	$map = $map->customise_for ($self);
1779		2578	$map = $check->($map) if $check && $map;
1780	# warn "entering ", $map->path, " at ($x, $y)\n"	2579	} else {
1781	# if $map;
1782
1783	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2580	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2581	}
1784		2582
		2583	$map
		2584	};
		2585
		2586	if ($@) {
		2587	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2588	LOG llevError | logBacktrace, Carp::longmess $@;
		2589	}
		2590
		2591	if ($gen == $self->{_goto_generation}) {
		2592	delete $self->{_goto_generation};
1785	$self->leave_link ($map, $x, $y);	2593	$self->leave_link ($map, $x, $y);
		2594	}
		2595
		2596	$done->() if $done;
1786	})->prio (1);	2597	})->prio (1);
1787	}	2598	}
1788		2599
1789	=item $player_object->enter_exit ($exit_object)	2600	=item $player_object->enter_exit ($exit_object)
1790		2601
…		…
1792		2603
1793	sub parse_random_map_params {	2604	sub parse_random_map_params {
1794	my ($spec) = @_;	2605	my ($spec) = @_;
1795		2606
1796	my $rmp = { # defaults	2607	my $rmp = { # defaults
1797	xsize => 10,	2608	xsize => (cf::rndm 15, 40),
1798	ysize => 10,	2609	ysize => (cf::rndm 15, 40),
		2610	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2611	#layout => string,
1799	};	2612	};
1800		2613
1801	for (split /\n/, $spec) {	2614	for (split /\n/, $spec) {
1802	my ($k, $v) = split /\s+/, $_, 2;	2615	my ($k, $v) = split /\s+/, $_, 2;
1803		2616
…		…
1807	$rmp	2620	$rmp
1808	}	2621	}
1809		2622
1810	sub prepare_random_map {	2623	sub prepare_random_map {
1811	my ($exit) = @_;	2624	my ($exit) = @_;
		2625
		2626	my $guard = cf::lock_acquire "exit_prepare:$exit";
1812		2627
1813	# all this does is basically replace the /! path by	2628	# all this does is basically replace the /! path by
1814	# a new random map path (?random/...) with a seed	2629	# a new random map path (?random/...) with a seed
1815	# that depends on the exit object	2630	# that depends on the exit object
1816		2631
1817	my $rmp = parse_random_map_params $exit->msg;	2632	my $rmp = parse_random_map_params $exit->msg;
1818		2633
1819	if ($exit->map) {	2634	if ($exit->map) {
1820	$rmp->{region} = $exit->map->region_name;	2635	$rmp->{region} = $exit->region->name;
1821	$rmp->{origin_map} = $exit->map->path;	2636	$rmp->{origin_map} = $exit->map->path;
1822	$rmp->{origin_x} = $exit->x;	2637	$rmp->{origin_x} = $exit->x;
1823	$rmp->{origin_y} = $exit->y;	2638	$rmp->{origin_y} = $exit->y;
1824	}	2639	}
1825		2640
1826	$rmp->{random_seed} ||= $exit->random_seed;	2641	$rmp->{random_seed} ||= $exit->random_seed;
1827		2642
1828	my $data = cf::to_json $rmp;	2643	my $data = cf::encode_json $rmp;
1829	my $md5 = Digest::MD5::md5_hex $data;	2644	my $md5 = Digest::MD5::md5_hex $data;
		2645	my $meta = "$RANDOMDIR/$md5.meta";
1830		2646
1831	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2647	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1832	aio_write $fh, 0, (length $data), $data, 0;	2648	aio_write $fh, 0, (length $data), $data, 0;
		2649	undef $fh;
		2650	aio_rename "$meta~", $meta;
1833		2651
1834	$exit->slaying ("?random/$md5");	2652	$exit->slaying ("?random/$md5");
1835	$exit->msg (undef);	2653	$exit->msg (undef);
1836	}	2654	}
1837	}	2655	}
…		…
1839	sub cf::object::player::enter_exit {	2657	sub cf::object::player::enter_exit {
1840	my ($self, $exit) = @_;	2658	my ($self, $exit) = @_;
1841		2659
1842	return unless $self->type == cf::PLAYER;	2660	return unless $self->type == cf::PLAYER;
1843		2661
		2662	if ($exit->slaying eq "/!") {
		2663	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2664	# the problem is that $exit might not survive long enough
		2665	# so it needs to be done right now, right here
		2666	cf::sync_job { prepare_random_map $exit };
		2667	}
		2668
		2669	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2670	my $hp = $exit->stats->hp;
		2671	my $sp = $exit->stats->sp;
		2672
1844	$self->enter_link;	2673	$self->enter_link;
1845		2674
		2675	# if exit is damned, update players death & WoR home-position
		2676	$self->contr->savebed ($slaying, $hp, $sp)
		2677	if $exit->flag (FLAG_DAMNED);
		2678
1846	(async {	2679	(async {
		2680	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2681
1847	$self->deactivate_recursive; # just to be sure	2682	$self->deactivate_recursive; # just to be sure
1848	unless (eval {	2683	unless (eval {
1849	prepare_random_map $exit	2684	$self->goto ($slaying, $hp, $sp);
1850	if $exit->slaying eq "/!";
1851
1852	my $path = new_from_path cf::map $exit->slaying, $exit->map && $exit->map->path;
1853	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1854		2685
1855	1;	2686	1;
1856	}) {	2687	}) {
1857	$self->message ("Something went wrong deep within the crossfire server. "	2688	$self->message ("Something went wrong deep within the crossfire server. "
1858	. "I'll try to bring you back to the map you were before. "	2689	. "I'll try to bring you back to the map you were before. "
1859	. "Please report this to the dungeon master!",	2690	. "Please report this to the dungeon master!",
1860	cf::NDI_UNIQUE | cf::NDI_RED);	2691	cf::NDI_UNIQUE | cf::NDI_RED);
1861		2692
1862	warn "ERROR in enter_exit: $@";	2693	warn "ERROR in enter_exit: $@";
1863	$self->leave_link;	2694	$self->leave_link;
1864	}	2695	}
1865	})->prio (1);	2696	})->prio (1);
…		…
1878		2709
1879	sub cf::client::send_drawinfo {	2710	sub cf::client::send_drawinfo {
1880	my ($self, $text, $flags) = @_;	2711	my ($self, $text, $flags) = @_;
1881		2712
1882	utf8::encode $text;	2713	utf8::encode $text;
1883	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2714	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1884	}	2715	}
1885		2716
		2717	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2718
		2719	Send a drawinfo or msg packet to the client, formatting the msg for the
		2720	client if neccessary. C<$type> should be a string identifying the type of
		2721	the message, with C<log> being the default. If C<$color> is negative, suppress
		2722	the message unless the client supports the msg packet.
		2723
		2724	=cut
		2725
		2726	# non-persistent channels (usually the info channel)
		2727	our %CHANNEL = (
		2728	"c/identify" => {
		2729	id => "infobox",
		2730	title => "Identify",
		2731	reply => undef,
		2732	tooltip => "Items recently identified",
		2733	},
		2734	"c/examine" => {
		2735	id => "infobox",
		2736	title => "Examine",
		2737	reply => undef,
		2738	tooltip => "Signs and other items you examined",
		2739	},
		2740	"c/book" => {
		2741	id => "infobox",
		2742	title => "Book",
		2743	reply => undef,
		2744	tooltip => "The contents of a note or book",
		2745	},
		2746	"c/lookat" => {
		2747	id => "infobox",
		2748	title => "Look",
		2749	reply => undef,
		2750	tooltip => "What you saw there",
		2751	},
		2752	"c/who" => {
		2753	id => "infobox",
		2754	title => "Players",
		2755	reply => undef,
		2756	tooltip => "Shows players who are currently online",
		2757	},
		2758	"c/body" => {
		2759	id => "infobox",
		2760	title => "Body Parts",
		2761	reply => undef,
		2762	tooltip => "Shows which body parts you posess and are available",
		2763	},
		2764	"c/uptime" => {
		2765	id => "infobox",
		2766	title => "Uptime",
		2767	reply => undef,
		2768	tooltip => "How long the server has been running since last restart",
		2769	},
		2770	"c/mapinfo" => {
		2771	id => "infobox",
		2772	title => "Map Info",
		2773	reply => undef,
		2774	tooltip => "Information related to the maps",
		2775	},
		2776	);
		2777
		2778	sub cf::client::send_msg {
		2779	my ($self, $channel, $msg, $color, @extra) = @_;
		2780
		2781	$msg = $self->pl->expand_cfpod ($msg);
		2782
		2783	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2784
		2785	# check predefined channels, for the benefit of C
		2786	if ($CHANNEL{$channel}) {
		2787	$channel = $CHANNEL{$channel};
		2788
		2789	$self->ext_msg (channel_info => $channel)
		2790	if $self->can_msg;
		2791
		2792	$channel = $channel->{id};
		2793
		2794	} elsif (ref $channel) {
		2795	# send meta info to client, if not yet sent
		2796	unless (exists $self->{channel}{$channel->{id}}) {
		2797	$self->{channel}{$channel->{id}} = $channel;
		2798	$self->ext_msg (channel_info => $channel)
		2799	if $self->can_msg;
		2800	}
		2801
		2802	$channel = $channel->{id};
		2803	}
		2804
		2805	return unless @extra || length $msg;
		2806
		2807	if ($self->can_msg) {
		2808	# default colour, mask it out
		2809	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2810	if $color & cf::NDI_DEF;
		2811
		2812	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2813	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2814	} else {
		2815	if ($color >= 0) {
		2816	# replace some tags by gcfclient-compatible ones
		2817	for ($msg) {
		2818	1 while
		2819	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2820	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2821	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2822	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2823	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2824	}
		2825
		2826	$color &= cf::NDI_COLOR_MASK;
		2827
		2828	utf8::encode $msg;
		2829
		2830	if (0 && $msg =~ /\[/) {
		2831	# COMMAND/INFO
		2832	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2833	} else {
		2834	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2835	$self->send_packet ("drawinfo $color $msg")
		2836	}
		2837	}
		2838	}
		2839	}
		2840
		2841	=item $client->ext_msg ($type, @msg)
		2842
		2843	Sends an ext event to the client.
		2844
		2845	=cut
		2846
		2847	sub cf::client::ext_msg($$@) {
		2848	my ($self, $type, @msg) = @_;
		2849
		2850	if ($self->extcmd == 2) {
		2851	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2852	} elsif ($self->extcmd == 1) { # TODO: remove
		2853	push @msg, msgtype => "event_$type";
		2854	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2855	}
		2856	}
		2857
		2858	=item $client->ext_reply ($msgid, @msg)
		2859
		2860	Sends an ext reply to the client.
		2861
		2862	=cut
		2863
		2864	sub cf::client::ext_reply($$@) {
		2865	my ($self, $id, @msg) = @_;
		2866
		2867	if ($self->extcmd == 2) {
		2868	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2869	} elsif ($self->extcmd == 1) {
		2870	#TODO: version 1, remove
		2871	unshift @msg, msgtype => "reply", msgid => $id;
		2872	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2873	}
		2874	}
1886		2875
1887	=item $success = $client->query ($flags, "text", \&cb)	2876	=item $success = $client->query ($flags, "text", \&cb)
1888		2877
1889	Queues a query to the client, calling the given callback with	2878	Queues a query to the client, calling the given callback with
1890	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2879	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1891	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2880	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1892		2881
1893	Queries can fail, so check the return code. Or don't, as queries will become	2882	Queries can fail, so check the return code. Or don't, as queries will
1894	reliable at some point in the future.	2883	become reliable at some point in the future.
1895		2884
1896	=cut	2885	=cut
1897		2886
1898	sub cf::client::query {	2887	sub cf::client::query {
1899	my ($self, $flags, $text, $cb) = @_;	2888	my ($self, $flags, $text, $cb) = @_;
…		…
1907	utf8::encode $text;	2896	utf8::encode $text;
1908	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2897	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1909		2898
1910	$self->send_packet ($self->{query_queue}[0][0])	2899	$self->send_packet ($self->{query_queue}[0][0])
1911	if @{ $self->{query_queue} } == 1;	2900	if @{ $self->{query_queue} } == 1;
		2901
		2902	1
1912	}	2903	}
1913		2904
1914	cf::client->attach (	2905	cf::client->attach (
		2906	on_connect => sub {
		2907	my ($ns) = @_;
		2908
		2909	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2910	},
1915	on_reply => sub {	2911	on_reply => sub {
1916	my ($ns, $msg) = @_;	2912	my ($ns, $msg) = @_;
1917		2913
1918	# this weird shuffling is so that direct followup queries	2914	# this weird shuffling is so that direct followup queries
1919	# get handled first	2915	# get handled first
1920	my $queue = delete $ns->{query_queue}	2916	my $queue = delete $ns->{query_queue}
1921	or return; # be conservative, not sure how that can happen, but we saw a crash here	2917	or return; # be conservative, not sure how that can happen, but we saw a crash here
1922		2918
1923	(shift @$queue)->[1]->($msg);	2919	(shift @$queue)->[1]->($msg);
		2920	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1924		2921
1925	push @{ $ns->{query_queue} }, @$queue;	2922	push @{ $ns->{query_queue} }, @$queue;
1926		2923
1927	if (@{ $ns->{query_queue} } == @$queue) {	2924	if (@{ $ns->{query_queue} } == @$queue) {
1928	if (@$queue) {	2925	if (@$queue) {
…		…
1930	} else {	2927	} else {
1931	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2928	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1932	}	2929	}
1933	}	2930	}
1934	},	2931	},
		2932	on_exticmd => sub {
		2933	my ($ns, $buf) = @_;
		2934
		2935	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2936
		2937	if (ref $msg) {
		2938	my ($type, $reply, @payload) =
		2939	"ARRAY" eq ref $msg
		2940	? @$msg
		2941	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2942
		2943	my @reply;
		2944
		2945	if (my $cb = $EXTICMD{$type}) {
		2946	@reply = $cb->($ns, @payload);
		2947	}
		2948
		2949	$ns->ext_reply ($reply, @reply)
		2950	if $reply;
		2951
		2952	} else {
		2953	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2954	}
		2955
		2956	cf::override;
		2957	},
1935	);	2958	);
1936		2959
1937	=item $client->async (\&cb)	2960	=item $client->async (\&cb)
1938		2961
1939	Create a new coroutine, running the specified callback. The coroutine will	2962	Create a new coroutine, running the specified callback. The coroutine will
…		…
1980	our $safe = new Safe "safe";	3003	our $safe = new Safe "safe";
1981	our $safe_hole = new Safe::Hole;	3004	our $safe_hole = new Safe::Hole;
1982		3005
1983	$SIG{FPE} = 'IGNORE';	3006	$SIG{FPE} = 'IGNORE';
1984		3007
1985	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3008	$safe->permit_only (Opcode::opset qw(
		3009	:base_core :base_mem :base_orig :base_math
		3010	grepstart grepwhile mapstart mapwhile
		3011	sort time
		3012	));
1986		3013
1987	# here we export the classes and methods available to script code	3014	# here we export the classes and methods available to script code
1988		3015
1989	=pod	3016	=pod
1990		3017
1991	The following fucntions and emthods are available within a safe environment:	3018	The following functions and methods are available within a safe environment:
1992		3019
1993	cf::object contr pay_amount pay_player map	3020	cf::object
		3021	contr pay_amount pay_player map x y force_find force_add destroy
		3022	insert remove name archname title slaying race decrease_ob_nr
		3023
1994	cf::object::player player	3024	cf::object::player
1995	cf::player peaceful	3025	player
1996	cf::map trigger	3026
		3027	cf::player
		3028	peaceful
		3029
		3030	cf::map
		3031	trigger
1997		3032
1998	=cut	3033	=cut
1999		3034
2000	for (	3035	for (
2001	["cf::object" => qw(contr pay_amount pay_player map)],	3036	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3037	insert remove inv name archname title slaying race
		3038	decrease_ob_nr destroy)],
2002	["cf::object::player" => qw(player)],	3039	["cf::object::player" => qw(player)],
2003	["cf::player" => qw(peaceful)],	3040	["cf::player" => qw(peaceful)],
2004	["cf::map" => qw(trigger)],	3041	["cf::map" => qw(trigger)],
2005	) {	3042	) {
2006	no strict 'refs';	3043	no strict 'refs';
…		…
2077	=back	3114	=back
2078		3115
2079	=cut	3116	=cut
2080		3117
2081	#############################################################################	3118	#############################################################################
		3119	# the server's init and main functions
2082		3120
2083	=head2 EXTENSION DATABASE SUPPORT	3121	sub load_facedata($) {
		3122	my ($path) = @_;
2084		3123
2085	Crossfire maintains a very simple database for extension use. It can	3124	# HACK to clear player env face cache, we need some signal framework
2086	currently store anything that can be serialised using Storable, which	3125	# for this (global event?)
2087	excludes objects.	3126	%ext::player_env::MUSIC_FACE_CACHE = ();
2088		3127
2089	The parameter C<$family> should best start with the name of the extension	3128	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2090	using it, it should be unique.
2091		3129
2092	=over 4	3130	warn "loading facedata from $path\n";
2093		3131
2094	=item $hashref = cf::db_get $family	3132	my $facedata;
		3133	0 < aio_load $path, $facedata
		3134	or die "$path: $!";
2095		3135
2096	Return a hashref for use by the extension C<$family>, which can be	3136	$facedata = Coro::Storable::thaw $facedata;
2097	modified. After modifications, you have to call C<cf::db_dirty> or
2098	C<cf::db_sync>.
2099		3137
2100	=item $value = cf::db_get $family => $key	3138	$facedata->{version} == 2
		3139	or cf::cleanup "$path: version mismatch, cannot proceed.";
2101		3140
2102	Returns a single value from the database	3141	# patch in the exptable
2103		3142	$facedata->{resource}{"res/exp_table"} = {
2104	=item cf::db_put $family => $hashref	3143	type => FT_RSRC,
2105		3144	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2106	Stores the given family hashref into the database. Updates are delayed, if
2107	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2108
2109	=item cf::db_put $family => $key => $value
2110
2111	Stores the given C<$value> in the family hash. Updates are delayed, if you
2112	want the data to be synced to disk immediately, use C<cf::db_sync>.
2113
2114	=item cf::db_dirty
2115
2116	Marks the database as dirty, to be updated at a later time.
2117
2118	=item cf::db_sync
2119
2120	Immediately write the database to disk I<if it is dirty>.
2121
2122	=cut
2123
2124	our $DB;
2125
2126	{
2127	my $path = cf::localdir . "/database.pst";
2128
2129	sub db_load() {
2130	$DB = stat $path ? Storable::retrieve $path : { };
2131	}
2132
2133	my $pid;
2134
2135	sub db_save() {
2136	waitpid $pid, 0 if $pid;
2137	if (0 == ($pid = fork)) {
2138	$DB->{_meta}{version} = 1;
2139	Storable::nstore $DB, "$path~";
2140	rename "$path~", $path;
2141	cf::_exit 0 if defined $pid;
2142	}
2143	}
2144
2145	my $dirty;
2146
2147	sub db_sync() {
2148	db_save if $dirty;
2149	undef $dirty;
2150	}
2151
2152	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2153	db_sync;
2154	});	3145	};
		3146	cf::cede_to_tick;
2155		3147
2156	sub db_dirty() {
2157	$dirty = 1;
2158	$idle->start;
2159	}	3148	{
		3149	my $faces = $facedata->{faceinfo};
2160		3150
2161	sub db_get($;$) {	3151	while (my ($face, $info) = each %$faces) {
2162	@_ >= 2	3152	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2163	? $DB->{$_[0]}{$_[1]}	3153	cf::face::set_visibility $idx, $info->{visibility};
2164	: ($DB->{$_[0]} ||= { })	3154	cf::face::set_magicmap $idx, $info->{magicmap};
2165	}	3155	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3156	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2166		3157
2167	sub db_put($$;$) {	3158	cf::cede_to_tick;
2168	if (@_ >= 3) {
2169	$DB->{$_[0]}{$_[1]} = $_[2];
2170	} else {
2171	$DB->{$_[0]} = $_[1];
2172	}
2173	db_dirty;
2174	}
2175
2176	cf::global->attach (
2177	prio => 10000,
2178	on_cleanup => sub {
2179	db_sync;
2180	},	3159	}
2181	);
2182	}
2183		3160
2184	#############################################################################	3161	while (my ($face, $info) = each %$faces) {
2185	# the server's main()	3162	next unless $info->{smooth};
		3163	my $idx = cf::face::find $face
		3164	or next;
		3165	if (my $smooth = cf::face::find $info->{smooth}) {
		3166	cf::face::set_smooth $idx, $smooth;
		3167	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3168	} else {
		3169	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3170	}
2186		3171
2187	sub cfg_load {	3172	cf::cede_to_tick;
		3173	}
		3174	}
		3175
		3176	{
		3177	my $anims = $facedata->{animinfo};
		3178
		3179	while (my ($anim, $info) = each %$anims) {
		3180	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3181	cf::cede_to_tick;
		3182	}
		3183
		3184	cf::anim::invalidate_all; # d'oh
		3185	}
		3186
		3187	{
		3188	# TODO: for gcfclient pleasure, we should give resources
		3189	# that gcfclient doesn't grok a >10000 face index.
		3190	my $res = $facedata->{resource};
		3191
		3192	my $soundconf = delete $res->{"res/sound.conf"};
		3193
		3194	while (my ($name, $info) = each %$res) {
		3195	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3196	my $data;
		3197
		3198	if ($info->{type} & 1) {
		3199	# prepend meta info
		3200
		3201	my $meta = $enc->encode ({
		3202	name => $name,
		3203	%{ $info->{meta} || {} },
		3204	});
		3205
		3206	$data = pack "(w/a*)*", $meta, $info->{data};
		3207	} else {
		3208	$data = $info->{data};
		3209	}
		3210
		3211	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3212	cf::face::set_type $idx, $info->{type};
		3213
		3214	cf::cede_to_tick;
		3215	}
		3216
		3217	if ($soundconf) {
		3218	$soundconf = $enc->decode (delete $soundconf->{data});
		3219
		3220	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3221	my $sound = $soundconf->{compat}[$_]
		3222	or next;
		3223
		3224	my $face = cf::face::find "sound/$sound->[1]";
		3225	cf::sound::set $sound->[0] => $face;
		3226	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3227	}
		3228
		3229	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3230	my $face = cf::face::find "sound/$v";
		3231	cf::sound::set $k => $face;
		3232	}
		3233	}
		3234	}
		3235
		3236	1
		3237	}
		3238
		3239	register_exticmd fx_want => sub {
		3240	my ($ns, $want) = @_;
		3241
		3242	while (my ($k, $v) = each %$want) {
		3243	$ns->fx_want ($k, $v);
		3244	}
		3245	};
		3246
		3247	sub reload_regions {
		3248	# HACK to clear player env face cache, we need some signal framework
		3249	# for this (global event?)
		3250	%ext::player_env::MUSIC_FACE_CACHE = ();
		3251
		3252	load_resource_file "$MAPDIR/regions"
		3253	or die "unable to load regions file\n";
		3254
		3255	for (cf::region::list) {
		3256	$_->{match} = qr/$_->{match}/
		3257	if exists $_->{match};
		3258	}
		3259	}
		3260
		3261	sub reload_facedata {
		3262	load_facedata "$DATADIR/facedata"
		3263	or die "unable to load facedata\n";
		3264	}
		3265
		3266	sub reload_archetypes {
		3267	load_resource_file "$DATADIR/archetypes"
		3268	or die "unable to load archetypes\n";
		3269	#d# NEED to laod twice to resolve forward references
		3270	# this really needs to be done in an extra post-pass
		3271	# (which needs to be synchronous, so solve it differently)
		3272	load_resource_file "$DATADIR/archetypes"
		3273	or die "unable to load archetypes\n";
		3274	}
		3275
		3276	sub reload_treasures {
		3277	load_resource_file "$DATADIR/treasures"
		3278	or die "unable to load treasurelists\n";
		3279	}
		3280
		3281	sub reload_resources {
		3282	warn "reloading resource files...\n";
		3283
		3284	reload_regions;
		3285	reload_facedata;
		3286	#reload_archetypes;#d#
		3287	reload_archetypes;
		3288	reload_treasures;
		3289
		3290	warn "finished reloading resource files\n";
		3291	}
		3292
		3293	sub init {
		3294	reload_resources;
		3295	}
		3296
		3297	sub reload_config {
2188	open my $fh, "<:utf8", cf::confdir . "/config"	3298	open my $fh, "<:utf8", "$CONFDIR/config"
2189	or return;	3299	or return;
2190		3300
2191	local $/;	3301	local $/;
2192	*CFG = YAML::Syck::Load <$fh>;	3302	*CFG = YAML::Syck::Load <$fh>;
2193		3303
…		…
2207		3317
2208	sub main {	3318	sub main {
2209	# we must not ever block the main coroutine	3319	# we must not ever block the main coroutine
2210	local $Coro::idle = sub {	3320	local $Coro::idle = sub {
2211	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3321	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2212	async { Event::one_event };	3322	(async {
		3323	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3324	EV::loop EV::LOOP_ONESHOT;
		3325	})->prio (Coro::PRIO_MAX);
2213	};	3326	};
2214		3327
2215	cfg_load;	3328	reload_config;
2216	db_load;	3329	db_init;
2217	load_extensions;	3330	load_extensions;
		3331
		3332	$TICK_WATCHER->start;
		3333	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
2218	Event::loop;	3334	EV::loop;
2219	}	3335	}
2220		3336
2221	#############################################################################	3337	#############################################################################
2222	# initialisation and cleanup	3338	# initialisation and cleanup
2223		3339
2224	# install some emergency cleanup handlers	3340	# install some emergency cleanup handlers
2225	BEGIN {	3341	BEGIN {
		3342	our %SIGWATCHER = ();
2226	for my $signal (qw(INT HUP TERM)) {	3343	for my $signal (qw(INT HUP TERM)) {
2227	Event->signal (	3344	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2228	data => WF_AUTOCANCEL,
2229	signal => $signal,
2230	cb => sub {
2231	cf::cleanup "SIG$signal";	3345	cf::cleanup "SIG$signal";
2232	},
2233	);	3346	};
		3347	}
		3348	}
		3349
		3350	sub write_runtime {
		3351	my $runtime = "$LOCALDIR/runtime";
		3352
		3353	# first touch the runtime file to show we are still running:
		3354	# the fsync below can take a very very long time.
		3355
		3356	IO::AIO::aio_utime $runtime, undef, undef;
		3357
		3358	my $guard = cf::lock_acquire "write_runtime";
		3359
		3360	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3361	or return;
		3362
		3363	my $value = $cf::RUNTIME + 90 + 10;
		3364	# 10 is the runtime save interval, for a monotonic clock
		3365	# 60 allows for the watchdog to kill the server.
		3366
		3367	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3368	and return;
		3369
		3370	# always fsync - this file is important
		3371	aio_fsync $fh
		3372	and return;
		3373
		3374	# touch it again to show we are up-to-date
		3375	aio_utime $fh, undef, undef;
		3376
		3377	close $fh
		3378	or return;
		3379
		3380	aio_rename "$runtime~", $runtime
		3381	and return;
		3382
		3383	warn "runtime file written.\n";
		3384
2234	}	3385	1
2235	}	3386	}
2236		3387
2237	sub emergency_save() {	3388	sub emergency_save() {
2238	my $freeze_guard = cf::freeze_mainloop;	3389	my $freeze_guard = cf::freeze_mainloop;
2239		3390
…		…
2245	# and maps saved/destroyed asynchronously.	3396	# and maps saved/destroyed asynchronously.
2246	warn "begin emergency player save\n";	3397	warn "begin emergency player save\n";
2247	for my $login (keys %cf::PLAYER) {	3398	for my $login (keys %cf::PLAYER) {
2248	my $pl = $cf::PLAYER{$login} or next;	3399	my $pl = $cf::PLAYER{$login} or next;
2249	$pl->valid or next;	3400	$pl->valid or next;
		3401	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2250	$pl->save;	3402	$pl->save;
2251	}	3403	}
2252	warn "end emergency player save\n";	3404	warn "end emergency player save\n";
2253		3405
2254	warn "begin emergency map save\n";	3406	warn "begin emergency map save\n";
…		…
2256	my $map = $cf::MAP{$path} or next;	3408	my $map = $cf::MAP{$path} or next;
2257	$map->valid or next;	3409	$map->valid or next;
2258	$map->save;	3410	$map->save;
2259	}	3411	}
2260	warn "end emergency map save\n";	3412	warn "end emergency map save\n";
		3413
		3414	warn "begin emergency database checkpoint\n";
		3415	BDB::db_env_txn_checkpoint $DB_ENV;
		3416	warn "end emergency database checkpoint\n";
2261	};	3417	};
2262		3418
2263	warn "leave emergency perl save\n";	3419	warn "leave emergency perl save\n";
2264	}	3420	}
2265		3421
		3422	sub post_cleanup {
		3423	my ($make_core) = @_;
		3424
		3425	warn Carp::longmess "post_cleanup backtrace"
		3426	if $make_core;
		3427	}
		3428
2266	sub reload() {	3429	sub do_reload_perl() {
2267	# can/must only be called in main	3430	# can/must only be called in main
2268	if ($Coro::current != $Coro::main) {	3431	if ($Coro::current != $Coro::main) {
2269	warn "can only reload from main coroutine\n";	3432	warn "can only reload from main coroutine";
2270	return;	3433	return;
2271	}	3434	}
2272		3435
2273	warn "reloading...";	3436	warn "reloading...";
2274		3437
2275	warn "freezing server";	3438	warn "entering sync_job";
2276	my $guard = freeze_mainloop;	3439
		3440	cf::sync_job {
		3441	cf::write_runtime; # external watchdog should not bark
2277	cf::emergency_save;	3442	cf::emergency_save;
		3443	cf::write_runtime; # external watchdog should not bark
2278		3444
2279	warn "sync database to disk";	3445	warn "syncing database to disk";
2280	cf::db_sync;	3446	BDB::db_env_txn_checkpoint $DB_ENV;
2281	IO::AIO::flush;
2282		3447
2283	eval {
2284	# if anything goes wrong in here, we should simply crash as we already saved	3448	# if anything goes wrong in here, we should simply crash as we already saved
2285		3449
2286	warn "cancel all watchers";	3450	warn "flushing outstanding aio requests";
2287	for (Event::all_watchers) {	3451	for (;;) {
2288	$_->cancel if $_->data & WF_AUTOCANCEL;	3452	BDB::flush;
		3453	IO::AIO::flush;
		3454	Coro::cede_notself;
		3455	last unless IO::AIO::nreqs || BDB::nreqs;
		3456	warn "iterate...";
2289	}	3457	}
2290		3458
		3459	++$RELOAD;
		3460
2291	warn "cancel all extension coros";	3461	warn "cancelling all extension coros";
2292	$_->cancel for values %EXT_CORO;	3462	$_->cancel for values %EXT_CORO;
2293	%EXT_CORO = ();	3463	%EXT_CORO = ();
2294		3464
2295	warn "remove commands";	3465	warn "removing commands";
2296	%COMMAND = ();	3466	%COMMAND = ();
2297		3467
2298	warn "remove ext commands";	3468	warn "removing ext/exti commands";
2299	%EXTCMD = ();	3469	%EXTCMD = ();
		3470	%EXTICMD = ();
2300		3471
2301	warn "unload/nuke all extensions";	3472	warn "unloading/nuking all extensions";
2302	for my $pkg (@EXTS) {	3473	for my $pkg (@EXTS) {
2303	warn "... unloading $pkg";	3474	warn "... unloading $pkg";
2304		3475
2305	if (my $cb = $pkg->can ("unload")) {	3476	if (my $cb = $pkg->can ("unload")) {
2306	eval {	3477	eval {
…		…
2311		3482
2312	warn "... nuking $pkg";	3483	warn "... nuking $pkg";
2313	Symbol::delete_package $pkg;	3484	Symbol::delete_package $pkg;
2314	}	3485	}
2315		3486
2316	warn "unload all perl modules loaded from $LIBDIR";	3487	warn "unloading all perl modules loaded from $LIBDIR";
2317	while (my ($k, $v) = each %INC) {	3488	while (my ($k, $v) = each %INC) {
2318	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3489	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2319		3490
2320	warn "removing <$k>";	3491	warn "... unloading $k";
2321	delete $INC{$k};	3492	delete $INC{$k};
2322		3493
2323	$k =~ s/\.pm$//;	3494	$k =~ s/\.pm$//;
2324	$k =~ s/\//::/g;	3495	$k =~ s/\//::/g;
2325		3496
…		…
2328	}	3499	}
2329		3500
2330	Symbol::delete_package $k;	3501	Symbol::delete_package $k;
2331	}	3502	}
2332		3503
2333	warn "get rid of safe::, as good as possible";	3504	warn "getting rid of safe::, as good as possible";
2334	Symbol::delete_package "safe::$_"	3505	Symbol::delete_package "safe::$_"
2335	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3506	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2336		3507
2337	warn "unload cf.pm \"a bit\"";	3508	warn "unloading cf.pm \"a bit\"";
2338	delete $INC{"cf.pm"};	3509	delete $INC{"cf.pm"};
		3510	delete $INC{"cf/pod.pm"};
2339		3511
2340	# don't, removes xs symbols, too,	3512	# don't, removes xs symbols, too,
2341	# and global variables created in xs	3513	# and global variables created in xs
2342	#Symbol::delete_package __PACKAGE__;	3514	#Symbol::delete_package __PACKAGE__;
2343		3515
		3516	warn "unload completed, starting to reload now";
		3517
2344	warn "reloading cf.pm";	3518	warn "reloading cf.pm";
2345	require cf;	3519	require cf;
2346	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3520	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2347		3521
2348	warn "load config and database again";	3522	warn "loading config and database again";
2349	cf::cfg_load;	3523	cf::reload_config;
2350	cf::db_load;
2351		3524
2352	warn "load extensions";	3525	warn "loading extensions";
2353	cf::load_extensions;	3526	cf::load_extensions;
2354		3527
2355	warn "reattach attachments to objects/players";	3528	warn "reattaching attachments to objects/players";
2356	_global_reattach;	3529	_global_reattach; # objects, sockets
2357	warn "reattach attachments to maps";	3530	warn "reattaching attachments to maps";
2358	reattach $_ for values %MAP;	3531	reattach $_ for values %MAP;
2359	};	3532	warn "reattaching attachments to players";
		3533	reattach $_ for values %PLAYER;
2360		3534
2361	if ($@) {	3535	warn "leaving sync_job";
		3536
		3537	1
		3538	} or do {
2362	warn $@;	3539	warn $@;
2363	warn "error while reloading, exiting.";	3540	warn "error while reloading, exiting.";
2364	exit 1;	3541	exit 1;
2365	}	3542	};
2366		3543
2367	warn "reloaded";	3544	warn "reloaded";
2368	};	3545	};
2369		3546
		3547	our $RELOAD_WATCHER; # used only during reload
		3548
		3549	sub reload_perl() {
		3550	# doing reload synchronously and two reloads happen back-to-back,
		3551	# coro crashes during coro_state_free->destroy here.
		3552
		3553	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
		3554	undef $RELOAD_WATCHER;
		3555	do_reload_perl;
		3556	};
		3557	}
		3558
2370	register_command "reload" => sub {	3559	register_command "reload" => sub {
2371	my ($who, $arg) = @_;	3560	my ($who, $arg) = @_;
2372		3561
2373	if ($who->flag (FLAG_WIZ)) {	3562	if ($who->flag (FLAG_WIZ)) {
2374	$who->message ("start of reload.");
2375	reload;
2376	$who->message ("end of reload.");	3563	$who->message ("reloading server.");
		3564	async {
		3565	$Coro::current->{desc} = "perl_reload";
		3566	reload_perl;
		3567	};
2377	}	3568	}
2378	};	3569	};
2379		3570
2380	unshift @INC, $LIBDIR;	3571	unshift @INC, $LIBDIR;
2381		3572
2382	$TICK_WATCHER = Event->timer (	3573	my $bug_warning = 0;
2383	reentrant => 0,
2384	prio => 0,
2385	at => $NEXT_TICK || $TICK,
2386	data => WF_AUTOCANCEL,
2387	cb => sub {
2388	$NOW = Event::time;
2389		3574
		3575	our @WAIT_FOR_TICK;
		3576	our @WAIT_FOR_TICK_BEGIN;
		3577
		3578	sub wait_for_tick {
		3579	return unless $TICK_WATCHER->is_active;
		3580	return if $Coro::current == $Coro::main;
		3581
		3582	my $signal = new Coro::Signal;
		3583	push @WAIT_FOR_TICK, $signal;
		3584	$signal->wait;
		3585	}
		3586
		3587	sub wait_for_tick_begin {
		3588	return unless $TICK_WATCHER->is_active;
		3589	return if $Coro::current == $Coro::main;
		3590
		3591	my $signal = new Coro::Signal;
		3592	push @WAIT_FOR_TICK_BEGIN, $signal;
		3593	$signal->wait;
		3594	}
		3595
		3596	$TICK_WATCHER = EV::periodic_ns 0, $TICK, 0, sub {
		3597	if ($Coro::current != $Coro::main) {
		3598	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3599	unless ++$bug_warning > 10;
		3600	return;
		3601	}
		3602
		3603	$NOW = $tick_start = EV::now;
		3604
2390	cf::server_tick; # one server iteration	3605	cf::server_tick; # one server iteration
		3606
2391	$RUNTIME += $TICK;	3607	$RUNTIME += $TICK;
2392	$NEXT_TICK += $TICK;	3608	$NEXT_TICK += $TICK;
2393		3609
2394	$WAIT_FOR_TICK->broadcast;	3610	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2395	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3611	$NEXT_RUNTIME_WRITE = $NOW + 10;
2396		3612	Coro::async_pool {
2397	# if we are delayed by four ticks or more, skip them all	3613	$Coro::current->{desc} = "runtime saver";
2398	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2399
2400	$TICK_WATCHER->at ($NEXT_TICK);
2401	$TICK_WATCHER->start;
2402	},
2403	);
2404
2405	IO::AIO::max_poll_time $TICK * 0.2;
2406
2407	Event->io (
2408	fd => IO::AIO::poll_fileno,
2409	poll => 'r',
2410	prio => 5,
2411	data => WF_AUTOCANCEL,
2412	cb => \&IO::AIO::poll_cb,
2413	);
2414
2415	Event->timer (
2416	data => WF_AUTOCANCEL,
2417	after => 0,
2418	interval => 10,
2419	cb => sub {
2420	(Coro::unblock_sub {
2421	write_runtime	3614	write_runtime
2422	or warn "ERROR: unable to write runtime file: $!";	3615	or warn "ERROR: unable to write runtime file: $!";
2423	})->();	3616	};
2424	},	3617	}
2425	);	3618
		3619	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3620	$sig->send;
		3621	}
		3622	while (my $sig = shift @WAIT_FOR_TICK) {
		3623	$sig->send;
		3624	}
		3625
		3626	$LOAD = ($NOW - $tick_start) / $TICK;
		3627	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3628
		3629	_post_tick;
		3630	};
		3631	$TICK_WATCHER->priority (EV::MAXPRI);
		3632
		3633	{
		3634	BDB::min_parallel 8;
		3635	BDB::max_poll_time $TICK * 0.1;
		3636	$BDB_POLL_WATCHER = EV::io BDB::poll_fileno, EV::READ, \&BDB::poll_cb;
		3637
		3638	BDB::set_sync_prepare {
		3639	my $status;
		3640	my $current = $Coro::current;
		3641	(
		3642	sub {
		3643	$status = $!;
		3644	$current->ready; undef $current;
		3645	},
		3646	sub {
		3647	Coro::schedule while defined $current;
		3648	$! = $status;
		3649	},
		3650	)
		3651	};
		3652
		3653	unless ($DB_ENV) {
		3654	$DB_ENV = BDB::db_env_create;
		3655	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3656	| BDB::LOG_AUTOREMOVE, 1);
		3657	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3658	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3659
		3660	cf::sync_job {
		3661	eval {
		3662	BDB::db_env_open
		3663	$DB_ENV,
		3664	$BDBDIR,
		3665	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3666	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3667	0666;
		3668
		3669	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3670	};
		3671
		3672	cf::cleanup "db_env_open(db): $@" if $@;
		3673	};
		3674	}
		3675
		3676	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3677	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3678	};
		3679	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3680	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3681	};
		3682	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3683	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3684	};
		3685	}
		3686
		3687	{
		3688	IO::AIO::min_parallel 8;
		3689
		3690	undef $Coro::AIO::WATCHER;
		3691	IO::AIO::max_poll_time $TICK * 0.1;
		3692	$AIO_POLL_WATCHER = EV::io IO::AIO::poll_fileno, EV::READ, \&IO::AIO::poll_cb;
		3693	}
		3694
		3695	my $_log_backtrace;
		3696
		3697	sub _log_backtrace {
		3698	my ($msg, @addr) = @_;
		3699
		3700	$msg =~ s/\n//;
		3701
		3702	# limit the # of concurrent backtraces
		3703	if ($_log_backtrace < 2) {
		3704	++$_log_backtrace;
		3705	async {
		3706	$Coro::current->{desc} = "abt $msg";
		3707
		3708	my @bt = fork_call {
		3709	@addr = map { sprintf "%x", $_ } @addr;
		3710	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3711	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3712	or die "addr2line: $!";
		3713
		3714	my @funcs;
		3715	my @res = <$fh>;
		3716	chomp for @res;
		3717	while (@res) {
		3718	my ($func, $line) = splice @res, 0, 2, ();
		3719	push @funcs, "[$func] $line";
		3720	}
		3721
		3722	@funcs
		3723	};
		3724
		3725	LOG llevInfo, "[ABT] $msg\n";
		3726	LOG llevInfo, "[ABT] $_\n" for @bt;
		3727	--$_log_backtrace;
		3728	};
		3729	} else {
		3730	LOG llevInfo, "[ABT] $msg\n";
		3731	LOG llevInfo, "[ABT] [suppressed]\n";
		3732	}
		3733	}
		3734
		3735	# load additional modules
		3736	use cf::pod;
2426		3737
2427	END { cf::emergency_save }	3738	END { cf::emergency_save }
2428		3739
2429	1	3740	1
2430		3741

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