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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.205 by root, Mon Feb 5 18:29:20 2007 UTC vs.
Revision 1.399 by root, Sun Dec 16 02:50:33 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 3.5 ();	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;
49	our $AIO_POLL_WATCHER;	76	our $AIO_POLL_WATCHER;
50	our $WRITE_RUNTIME_WATCHER;	77	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
51	our $NEXT_TICK;	78	our $NEXT_TICK;
52	our $NOW;
53	our $USE_FSYNC = 1; # use fsync to write maps - default off	79	our $USE_FSYNC = 1; # use fsync to write maps - default off
		80
		81	our $BDB_POLL_WATCHER;
		82	our $BDB_DEADLOCK_WATCHER;
		83	our $BDB_CHECKPOINT_WATCHER;
		84	our $BDB_TRICKLE_WATCHER;
		85	our $DB_ENV;
54		86
55	our %CFG;	87	our %CFG;
56		88
57	our $UPTIME; $UPTIME ||= time;	89	our $UPTIME; $UPTIME ||= time;
58	our $RUNTIME;	90	our $RUNTIME;
		91	our $NOW;
59		92
60	our %PLAYER; # all users	93	our (%PLAYER, %PLAYER_LOADING); # all users
61	our %MAP; # all maps	94	our (%MAP, %MAP_LOADING ); # all maps
62	our $LINK_MAP; # the special {link} map, which is always available	95	our $LINK_MAP; # the special {link} map, which is always available
63	our $RANDOM_MAPS = cf::localdir . "/random";
64
65	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;
66	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;
67		96
68	# 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 ∕
69	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons	98	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
70		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 $tick_start; # for load detecting purposes
		103
71	binmode STDOUT;	104	binmode STDOUT;
72	binmode STDERR;	105	binmode STDERR;
73		106
74	# read virtual server time, if available	107	# read virtual server time, if available
75	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	108	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
76	open my $fh, "<", cf::localdir . "/runtime"	109	open my $fh, "<", "$LOCALDIR/runtime"
77	or die "unable to read runtime file: $!";	110	or die "unable to read runtime file: $!";
78	$RUNTIME = <$fh> + 0.;	111	$RUNTIME = <$fh> + 0.;
79	}	112	}
80		113
81	mkdir cf::localdir;	114	mkdir $_
82	mkdir cf::localdir . "/" . cf::playerdir;	115	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
83	mkdir cf::localdir . "/" . cf::tmpdir;
84	mkdir cf::localdir . "/" . cf::uniquedir;
85	mkdir $RANDOM_MAPS;
86		116
87	our $EMERGENCY_POSITION;	117	our $EMERGENCY_POSITION;
88		118
89	sub cf::map::normalise;	119	sub cf::map::normalise;
90		120
…		…
101	=item $cf::RUNTIME	131	=item $cf::RUNTIME
102		132
103	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
104	every server tick.	134	every server tick.
105		135
106	=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
107		139
108	The perl library directory, where extensions and cf-specific modules can	140	Various directories - "/etc", read-only install directory, perl-library
109	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.
110		144
111	=item $cf::NOW	145	=item $cf::NOW
112		146
113	The time of the last (current) server tick.	147	The time of the last (current) server tick.
114		148
115	=item $cf::TICK	149	=item $cf::TICK
116		150
117	The interval between server ticks, in seconds.	151	The interval between server ticks, in seconds.
118		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
119	=item %cf::CFG	163	=item %cf::CFG
120		164
121	Configuration for the server, loaded from C</etc/crossfire/config>, or	165	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
122	from wherever your confdir points to.	166	from wherever your confdir points to.
123		167
124	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	168	=item cf::wait_for_tick, cf::wait_for_tick_begin
125		169
126	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
127	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
128	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.
129	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.
130		179
131	=back	180	=back
132		181
133	=cut	182	=cut
134		183
135	BEGIN {	184	BEGIN {
136	*CORE::GLOBAL::warn = sub {	185	*CORE::GLOBAL::warn = sub {
137	my $msg = join "", @_;	186	my $msg = join "", @_;
138	utf8::encode $msg;
139		187
140	$msg .= "\n"	188	$msg .= "\n"
141	unless $msg =~ /\n$/;	189	unless $msg =~ /\n$/;
		190
		191	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
142		192
143	LOG llevError, $msg;	193	LOG llevError, $msg;
144	};	194	};
145	}	195	}
146		196
147	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	197	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
148	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	198	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
149	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	199	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
150	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	200	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
151	@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';
152	@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)
153		204
154	# 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
155	# within the Safe compartment.	206	# within the Safe compartment.
156	for my $pkg (qw(	207	for my $pkg (qw(
157	cf::global cf::attachable	208	cf::global cf::attachable
…		…
162	)) {	213	)) {
163	no strict 'refs';	214	no strict 'refs';
164	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	215	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
165	}	216	}
166		217
167	$Event::DIED = sub {	218	$EV::DIED = sub {
168	warn "error in event callback: @_";	219	warn "error in event callback: @_";
169	};	220	};
		221
		222	#############################################################################
170		223
171	=head2 UTILITY FUNCTIONS	224	=head2 UTILITY FUNCTIONS
172		225
173	=over 4	226	=over 4
174		227
…		…
193	$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;
194	$d	247	$d
195	} || "[unable to dump $_[0]: '$@']";	248	} || "[unable to dump $_[0]: '$@']";
196	}	249	}
197		250
198	use JSON::Syck (); # TODO# replace by JSON::PC once working
199
200	=item $ref = cf::from_json $json	251	=item $ref = cf::decode_json $json
201		252
202	Converts a JSON string into the corresponding perl data structure.	253	Converts a JSON string into the corresponding perl data structure.
203		254
204	=cut
205
206	sub from_json($) {
207	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
208	JSON::Syck::Load $_[0]
209	}
210
211	=item $json = cf::to_json $ref	255	=item $json = cf::encode_json $ref
212		256
213	Converts a perl data structure into its JSON representation.	257	Converts a perl data structure into its JSON representation.
214		258
215	=cut	259	=cut
216		260
217	sub to_json($) {	261	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
218	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	262
219	JSON::Syck::Dump $_[0]	263	sub encode_json($) { $json_coder->encode ($_[0]) }
220	}	264	sub decode_json($) { $json_coder->decode ($_[0]) }
221		265
222	=item cf::lock_wait $string	266	=item cf::lock_wait $string
223		267
224	Wait until the given lock is available. See cf::lock_acquire.	268	Wait until the given lock is available. See cf::lock_acquire.
225		269
…		…
228	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
229	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,
230	for example when the coroutine gets canceled), the lock is automatically	274	for example when the coroutine gets canceled), the lock is automatically
231	returned.	275	returned.
232		276
		277	Locks are *not* recursive, locking from the same coro twice results in a
		278	deadlocked coro.
		279
233	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
234	uses map_find and cf::map::load uses map_load).	281	uses map_find and cf::map::load uses map_load).
235		282
		283	=item $locked = cf::lock_active $string
		284
		285	Return true if the lock is currently active, i.e. somebody has locked it.
		286
236	=cut	287	=cut
237		288
238	our %LOCK;	289	our %LOCK;
		290	our %LOCKER;#d#
239		291
240	sub lock_wait($) {	292	sub lock_wait($) {
241	my ($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#
242		299
243	# wait for lock, if any	300	# wait for lock, if any
244	while ($LOCK{$key}) {	301	while ($LOCK{$key}) {
245	push @{ $LOCK{$key} }, $Coro::current;	302	push @{ $LOCK{$key} }, $Coro::current;
246	Coro::schedule;	303	Coro::schedule;
…		…
252		309
253	# wait, to be sure we are not locked	310	# wait, to be sure we are not locked
254	lock_wait $key;	311	lock_wait $key;
255		312
256	$LOCK{$key} = [];	313	$LOCK{$key} = [];
		314	$LOCKER{$key} = $Coro::current;#d#
257		315
258	Coro::guard {	316	Coro::guard {
		317	delete $LOCKER{$key};#d#
259	# wake up all waiters, to be on the safe side	318	# wake up all waiters, to be on the safe side
260	$_->ready for @{ delete $LOCK{$key} };	319	$_->ready for @{ delete $LOCK{$key} };
261	}	320	}
262	}	321	}
263		322
		323	sub lock_active($) {
		324	my ($key) = @_;
		325
		326	! ! $LOCK{$key}
		327	}
		328
264	sub freeze_mainloop {	329	sub freeze_mainloop {
265	return unless $TICK_WATCHER->is_active;	330	return unless $TICK_WATCHER->is_active;
266		331
267	my $guard = Coro::guard {	332	my $guard = Coro::guard {
268	$TICK_WATCHER->start;	333	$TICK_WATCHER->start;
269	$WRITE_RUNTIME_WATCHER->start;
270	};	334	};
271	$WRITE_RUNTIME_WATCHER->stop;
272	$TICK_WATCHER->stop;	335	$TICK_WATCHER->stop;
273	$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	$sig->wait;
274	}	410	}
275		411
276	=item cf::async { BLOCK }	412	=item cf::async { BLOCK }
277		413
278	Currently the same as Coro::async_pool, meaning you cannot use	414	Currently the same as Coro::async_pool, meaning you cannot use
…		…
283		419
284	BEGIN { *async = \&Coro::async_pool }	420	BEGIN { *async = \&Coro::async_pool }
285		421
286	=item cf::sync_job { BLOCK }	422	=item cf::sync_job { BLOCK }
287		423
288	The design of crossfire+ requires that the main coro ($Coro::main) is	424	The design of Deliantra requires that the main coroutine ($Coro::main)
289	always able to handle events or runnable, as crossfire+ is only partly	425	is always able to handle events or runnable, as Deliantra is only
290	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	426	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		427	acceptable.
291		428
292	If it must be done, put the blocking parts into C<sync_job>. This will run	429	If it must be done, put the blocking parts into C<sync_job>. This will run
293	the given BLOCK in another coroutine while waiting for the result. The	430	the given BLOCK in another coroutine while waiting for the result. The
294	server will be frozen during this time, so the block should either finish	431	server will be frozen during this time, so the block should either finish
295	fast or be very important.	432	fast or be very important.
…		…
298		435
299	sub sync_job(&) {	436	sub sync_job(&) {
300	my ($job) = @_;	437	my ($job) = @_;
301		438
302	if ($Coro::current == $Coro::main) {	439	if ($Coro::current == $Coro::main) {
		440	my $time = EV::time;
		441
303	# this is the main coro, too bad, we have to block	442	# this is the main coro, too bad, we have to block
304	# till the operation succeeds, freezing the server :/	443	# till the operation succeeds, freezing the server :/
305		444
		445	LOG llevError, Carp::longmess "sync job";#d#
		446
306	# TODO: use suspend/resume instead	447	# TODO: use suspend/resume instead
307	# (but this is cancel-safe)	448	# (but this is cancel-safe)
308	my $freeze_guard = freeze_mainloop;	449	my $freeze_guard = freeze_mainloop;
309		450
310	my $busy = 1;	451	my $busy = 1;
311	my @res;	452	my @res;
312		453
313	(async {	454	(async {
		455	$Coro::current->desc ("sync job coro");
314	@res = eval { $job->() };	456	@res = eval { $job->() };
315	warn $@ if $@;	457	warn $@ if $@;
316	undef $busy;	458	undef $busy;
317	})->prio (Coro::PRIO_MAX);	459	})->prio (Coro::PRIO_MAX);
318		460
319	while ($busy) {	461	while ($busy) {
320	Coro::cede or Event::one_event;	462	if (Coro::nready) {
		463	Coro::cede_notself;
		464	} else {
		465	EV::loop EV::LOOP_ONESHOT;
321	}	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
322		475
323	wantarray ? @res : $res[0]	476	wantarray ? @res : $res[0]
324	} else {	477	} else {
325	# we are in another coroutine, how wonderful, everything just works	478	# we are in another coroutine, how wonderful, everything just works
326		479
…		…
346	$EXT_CORO{$coro+0} = $coro;	499	$EXT_CORO{$coro+0} = $coro;
347		500
348	$coro	501	$coro
349	}	502	}
350		503
351	sub write_runtime {	504	=item fork_call { }, $args
352	my $runtime = cf::localdir . "/runtime";
353		505
354	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	506	Executes the given code block with the given arguments in a seperate
355	or return;	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.
356		510
357	my $value = $cf::RUNTIME + 90 + 10;	511	=cut
358	# 10 is the runtime save interval, for a monotonic clock
359	# 60 allows for the watchdog to kill the server.
360		512
361	(aio_write $fh, 0, (length $value), $value, 0) <= 0	513	sub fork_call(&@) {
362	and return;	514	my ($cb, @args) = @_;
363		515
364	# always fsync - this file is important	516	# we seemingly have to make a local copy of the whole thing,
365	aio_fsync $fh	517	# otherwise perl prematurely frees the stuff :/
366	and return;	518	# TODO: investigate and fix (likely this will be rather laborious)
367		519
368	close $fh	520	my @res = Coro::Util::fork_eval {
369	or return;	521	reset_signals;
		522	&$cb
		523	}, @args;
370		524
371	aio_rename "$runtime~", $runtime	525	wantarray ? @res : $res[-1]
372	and return;	526	}
373		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($$) {
		570	my $key = "$_[0]/$_[1]";
		571
		572	cf::sync_job {
		573	BDB::db_get $DB, undef, $key, my $data;
		574
		575	$! ? ()
		576	: $data
374	1	577	}
		578	}
		579
		580	sub db_put($$$) {
		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 });
375	}	664	}
376		665
377	=back	666	=back
378		667
379	=cut	668	=cut
…		…
386	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")
387	to it. All such attachable objects support the following methods.	676	to it. All such attachable objects support the following methods.
388		677
389	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>
390	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
391	crossfire+).	680	Deliantra).
392		681
393	=over 4	682	=over 4
394		683
395	=item $attachable->attach ($attachment, key => $value...)	684	=item $attachable->attach ($attachment, key => $value...)
396		685
…		…
559	$registry = $CB_TYPE[$object_type] ||= [];	848	$registry = $CB_TYPE[$object_type] ||= [];
560		849
561	} elsif ($type eq "subtype") {	850	} elsif ($type eq "subtype") {
562	defined $object_type or Carp::croak "subtype specified without type";	851	defined $object_type or Carp::croak "subtype specified without type";
563	my $object_subtype = shift @arg;	852	my $object_subtype = shift @arg;
564	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	853	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
565		854
566	} elsif ($type eq "package") {	855	} elsif ($type eq "package") {
567	my $pkg = shift @arg;	856	my $pkg = shift @arg;
568		857
569	while (my ($name, $id) = each %cb_id) {	858	while (my ($name, $id) = each %cb_id) {
…		…
598	_attach $registry, $klass, @attach;	887	_attach $registry, $klass, @attach;
599	}	888	}
600		889
601	$obj->{$name} = \%arg;	890	$obj->{$name} = \%arg;
602	} else {	891	} else {
603	warn "object uses attachment '$name' that is not available, postponing.\n";	892	warn "object uses attachment '$name' which is not available, postponing.\n";
604	}	893	}
605		894
606	$obj->{_attachment}{$name} = undef;	895	$obj->{_attachment}{$name} = undef;
607	}	896	}
608		897
…		…
610	if (ref $_[0]) {	899	if (ref $_[0]) {
611	_object_attach @_;	900	_object_attach @_;
612	} else {	901	} else {
613	_attach shift->_attach_registry, @_;	902	_attach shift->_attach_registry, @_;
614	}	903	}
		904	_recalc_want;
615	};	905	};
616		906
617	# all those should be optimised	907	# all those should be optimised
618	sub cf::attachable::detach {	908	sub cf::attachable::detach {
619	my ($obj, $name) = @_;	909	my ($obj, $name) = @_;
…		…
622	delete $obj->{_attachment}{$name};	912	delete $obj->{_attachment}{$name};
623	reattach ($obj);	913	reattach ($obj);
624	} else {	914	} else {
625	Carp::croak "cannot, currently, detach class attachments";	915	Carp::croak "cannot, currently, detach class attachments";
626	}	916	}
		917	_recalc_want;
627	};	918	};
628		919
629	sub cf::attachable::attached {	920	sub cf::attachable::attached {
630	my ($obj, $name) = @_;	921	my ($obj, $name) = @_;
631		922
…		…
646	";	937	";
647	die if $@;	938	die if $@;
648	}	939	}
649		940
650	our $override;	941	our $override;
651	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?
652		943
653	sub override {	944	sub override {
654	$override = 1;	945	$override = 1;
655	@invoke_results = ();	946	@INVOKE_RESULTS = (@_);
656	}	947	}
657		948
658	sub do_invoke {	949	sub do_invoke {
659	my $event = shift;	950	my $event = shift;
660	my $callbacks = shift;	951	my $callbacks = shift;
661		952
662	@invoke_results = ();	953	@INVOKE_RESULTS = ();
663		954
664	local $override;	955	local $override;
665		956
666	for (@$callbacks) {	957	for (@$callbacks) {
667	eval { &{$_->[1]} };	958	eval { &{$_->[1]} };
…		…
684		975
685	Generate an object-specific event with the given arguments.	976	Generate an object-specific event with the given arguments.
686		977
687	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
688	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
689	results (if you must, access C<@cf::invoke_results> directly).	980	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
690		981
691	=back	982	=back
692		983
693	=cut	984	=cut
694		985
695	#############################################################################	986	#############################################################################
696	# 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, $ob2
		1029	}
697		1030
698	sub reattach {	1031	sub reattach {
699	# basically do the same as instantiate, without calling instantiate	1032	# basically do the same as instantiate, without calling instantiate
700	my ($obj) = @_;	1033	my ($obj) = @_;
701		1034
…		…
722	cf::attachable->attach (	1055	cf::attachable->attach (
723	prio => -1000000,	1056	prio => -1000000,
724	on_instantiate => sub {	1057	on_instantiate => sub {
725	my ($obj, $data) = @_;	1058	my ($obj, $data) = @_;
726		1059
727	$data = from_json $data;	1060	$data = decode_json $data;
728		1061
729	for (@$data) {	1062	for (@$data) {
730	my ($name, $args) = @$_;	1063	my ($name, $args) = @$_;
731		1064
732	$obj->attach ($name, %{$args || {} });	1065	$obj->attach ($name, %{$args || {} });
…		…
748	sub object_freezer_save {	1081	sub object_freezer_save {
749	my ($filename, $rdata, $objs) = @_;	1082	my ($filename, $rdata, $objs) = @_;
750		1083
751	sync_job {	1084	sync_job {
752	if (length $$rdata) {	1085	if (length $$rdata) {
		1086	utf8::decode (my $decname = $filename);
753	warn sprintf "saving %s (%d,%d)\n",	1087	warn sprintf "saving %s (%d,%d)\n",
754	$filename, length $$rdata, scalar @$objs;	1088	$decname, length $$rdata, scalar @$objs;
755		1089
756	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1090	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
757	chmod SAVE_MODE, $fh;	1091	chmod SAVE_MODE, $fh;
758	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1092	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
759	aio_fsync $fh if $cf::USE_FSYNC;	1093	aio_fsync $fh if $cf::USE_FSYNC;
760	close $fh;	1094	close $fh;
761		1095
762	if (@$objs) {	1096	if (@$objs) {
763	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) {
764	chmod SAVE_MODE, $fh;	1098	chmod SAVE_MODE, $fh;
765	my $data = Storable::nfreeze { version => 1, objs => $objs };	1099	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
766	aio_write $fh, 0, (length $data), $data, 0;	1100	aio_write $fh, 0, (length $data), $data, 0;
767	aio_fsync $fh if $cf::USE_FSYNC;	1101	aio_fsync $fh if $cf::USE_FSYNC;
768	close $fh;	1102	close $fh;
769	aio_rename "$filename.pst~", "$filename.pst";	1103	aio_rename "$filename.pst~", "$filename.pst";
770	}	1104	}
…		…
778	}	1112	}
779	} else {	1113	} else {
780	aio_unlink $filename;	1114	aio_unlink $filename;
781	aio_unlink "$filename.pst";	1115	aio_unlink "$filename.pst";
782	}	1116	}
783
784	#d##TODO# nuke non .map-files if exist
785	if ($filename =~ s/\.map$//) {
786	aio_unlink $filename;
787	aio_unlink "$filename.pst";
788	}
789	}	1117	};
790	}	1118	}
791		1119
792	sub object_freezer_as_string {	1120	sub object_freezer_as_string {
793	my ($rdata, $objs) = @_;	1121	my ($rdata, $objs) = @_;
794		1122
…		…
799		1127
800	sub object_thawer_load {	1128	sub object_thawer_load {
801	my ($filename) = @_;	1129	my ($filename) = @_;
802		1130
803	my ($data, $av);	1131	my ($data, $av);
804
805	#d#TODO remove .map if file does not exist
806	aio_stat $filename and $filename =~ s/\.map$//;
807		1132
808	(aio_load $filename, $data) >= 0	1133	(aio_load $filename, $data) >= 0
809	or return;	1134	or return;
810		1135
811	unless (aio_stat "$filename.pst") {	1136	unless (aio_stat "$filename.pst") {
812	(aio_load "$filename.pst", $av) >= 0	1137	(aio_load "$filename.pst", $av) >= 0
813	or return;	1138	or return;
		1139
814	$av = eval { (Storable::thaw $av)->{objs} };	1140	my $st = eval { Coro::Storable::thaw $av };
		1141	$av = $st->{objs};
815	}	1142	}
816		1143
		1144	utf8::decode (my $decname = $filename);
817	warn sprintf "loading %s (%d)\n",	1145	warn sprintf "loading %s (%d,%d)\n",
818	$filename, length $data, scalar @{$av || []};#d#	1146	$decname, length $data, scalar @{$av || []};
		1147
819	return ($data, $av);	1148	($data, $av)
820	}	1149	}
		1150
		1151	=head2 COMMAND CALLBACKS
		1152
		1153	=over 4
		1154
		1155	=cut
821		1156
822	#############################################################################	1157	#############################################################################
823	# command handling &c	1158	# command handling &c
824		1159
825	=item cf::register_command $name => \&callback($ob,$args);	1160	=item cf::register_command $name => \&callback($ob,$args);
…		…
838	push @{ $COMMAND{$name} }, [$caller, $cb];	1173	push @{ $COMMAND{$name} }, [$caller, $cb];
839	}	1174	}
840		1175
841	=item cf::register_extcmd $name => \&callback($pl,$packet);	1176	=item cf::register_extcmd $name => \&callback($pl,$packet);
842		1177
843	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.
844		1183
845	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
846	called.	1185	called.
847		1186
		1187	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1188
		1189	Register a callback for execution when the client sends an (asynchronous)
		1190	exticmd packet. Exti commands are processed by the server as soon as they
		1191	are received, i.e. out of order w.r.t. other commands. The first argument
		1192	is a client socket. Exti commands can be received anytime, even before
		1193	log-in.
		1194
		1195	If the callback returns something, it is sent back as if reply was being
		1196	called.
		1197
848	=cut	1198	=cut
849		1199
850	sub register_extcmd {	1200	sub register_extcmd {
851	my ($name, $cb) = @_;	1201	my ($name, $cb) = @_;
852		1202
853	$EXTCMD{$name} = $cb;	1203	$EXTCMD{$name} = $cb;
		1204	}
		1205
		1206	sub register_exticmd {
		1207	my ($name, $cb) = @_;
		1208
		1209	$EXTICMD{$name} = $cb;
854	}	1210	}
855		1211
856	cf::player->attach (	1212	cf::player->attach (
857	on_command => sub {	1213	on_command => sub {
858	my ($pl, $name, $params) = @_;	1214	my ($pl, $name, $params) = @_;
…		…
867	cf::override;	1223	cf::override;
868	},	1224	},
869	on_extcmd => sub {	1225	on_extcmd => sub {
870	my ($pl, $buf) = @_;	1226	my ($pl, $buf) = @_;
871		1227
872	my $msg = eval { from_json $buf };	1228	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
873		1229
874	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
875	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1238	if (my $cb = $EXTCMD{$type}) {
876	if (my %reply = $cb->($pl, $msg)) {	1239	@reply = $cb->($pl, @payload);
877	$pl->ext_reply ($msg->{msgid}, %reply);
878	}
879	}	1240	}
		1241
		1242	$pl->ext_reply ($reply, @reply)
		1243	if $reply;
		1244
880	} else {	1245	} else {
881	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1246	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
882	}	1247	}
883		1248
884	cf::override;	1249	cf::override;
885	},	1250	},
886	);	1251	);
887		1252
888	sub load_extension {
889	my ($path) = @_;
890
891	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
892	my $base = $1;
893	my $pkg = $1;
894	$pkg =~ s/[^[:word:]]/_/g;
895	$pkg = "ext::$pkg";
896
897	warn "... loading '$path' into '$pkg'\n";
898
899	open my $fh, "<:utf8", $path
900	or die "$path: $!";
901
902	my $source =
903	"package $pkg; use strict; use utf8;\n"
904	. "#line 1 \"$path\"\n{\n"
905	. (do { local $/; <$fh> })
906	. "\n};\n1";
907
908	unless (eval $source) {
909	my $msg = $@ ? "$path: $@\n"
910	: "extension disabled.\n";
911	if ($source =~ /^#!.*perl.*#.*MANDATORY/m) { # ugly match
912	warn $@;
913	warn "mandatory extension failed to load, exiting.\n";
914	exit 1;
915	}
916	die $@;
917	}
918
919	push @EXTS, $pkg;
920	}
921
922	sub load_extensions {	1253	sub load_extensions {
		1254	cf::sync_job {
		1255	my %todo;
		1256
923	for my $ext (<$LIBDIR/*.ext>) {	1257	for my $path (<$LIBDIR/*.ext>) {
924	next unless -r $ext;	1258	next unless -r $path;
925	eval {	1259
926	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	$progress = 1;
927	1	1317	}
928	} or warn "$ext not loaded: $@";	1318
		1319	skip:
		1320	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1321	unless $progress;
		1322	}
929	}	1323	};
930	}	1324	}
931		1325
932	#############################################################################	1326	#############################################################################
933		1327
		1328	=back
		1329
934	=head2 CORE EXTENSIONS	1330	=head2 CORE EXTENSIONS
935		1331
936	Functions and methods that extend core crossfire objects.	1332	Functions and methods that extend core crossfire objects.
937		1333
938	=cut	1334	=cut
…		…
943		1339
944	=head3 cf::player	1340	=head3 cf::player
945		1341
946	=over 4	1342	=over 4
947		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
948	=item cf::player::find $login	1358	=item cf::player::find $login
949		1359
950	Returns the given player object, loading it if necessary (might block).	1360	Returns the given player object, loading it if necessary (might block).
951		1361
952	=cut	1362	=cut
953		1363
954	sub playerdir($) {	1364	sub playerdir($) {
955	cf::localdir	1365	"$PLAYERDIR/"
956	. "/"
957	. cf::playerdir
958	. "/"
959	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1366	. (ref $_[0] ? $_[0]->ob->name : $_[0])
960	}	1367	}
961		1368
962	sub path($) {	1369	sub path($) {
963	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1370	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
964		1371
965	(playerdir $login) . "/$login.pl"	1372	(playerdir $login) . "/playerdata"
966	}	1373	}
967		1374
968	sub find_active($) {	1375	sub find_active($) {
969	$cf::PLAYER{$_[0]}	1376	$cf::PLAYER{$_[0]}
970	and $cf::PLAYER{$_[0]}->active	1377	and $cf::PLAYER{$_[0]}->active
…		…
983	my $login = $_[0];	1390	my $login = $_[0];
984		1391
985	my $guard = cf::lock_acquire "user_find:$login";	1392	my $guard = cf::lock_acquire "user_find:$login";
986		1393
987	$cf::PLAYER{$_[0]} || do {	1394	$cf::PLAYER{$_[0]} || do {
988	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
989	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;
990	$cf::PLAYER{$login} = $pl	1409	$cf::PLAYER{$login} = $pl
991	}	1410	}
992	}	1411	}
993	}	1412	}
994		1413
…		…
1004		1423
1005	aio_mkdir playerdir $pl, 0770;	1424	aio_mkdir playerdir $pl, 0770;
1006	$pl->{last_save} = $cf::RUNTIME;	1425	$pl->{last_save} = $cf::RUNTIME;
1007		1426
1008	$pl->save_pl ($path);	1427	$pl->save_pl ($path);
1009	Coro::cede;	1428	cf::cede_to_tick;
1010	}	1429	}
1011		1430
1012	sub new($) {	1431	sub new($) {
1013	my ($login) = @_;	1432	my ($login) = @_;
1014		1433
…		…
1020	$cf::PLAYER{$login} = $self;	1439	$cf::PLAYER{$login} = $self;
1021		1440
1022	$self	1441	$self
1023	}	1442	}
1024		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
1025	=item $pl->quit_character	1454	=item $pl->quit_character
1026		1455
1027	Nukes the player without looking back. If logged in, the connection will	1456	Nukes the player without looking back. If logged in, the connection will
1028	be destroyed. May block for a long time.	1457	be destroyed. May block for a long time.
1029		1458
1030	=cut	1459	=cut
1031		1460
1032	sub quit_character {	1461	sub quit_character {
1033	my ($pl) = @_;	1462	my ($pl) = @_;
		1463
		1464	my $name = $pl->ob->name;
1034		1465
1035	$pl->{deny_save} = 1;	1466	$pl->{deny_save} = 1;
1036	$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
1037		1468
1038	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1469	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1043	my $path = playerdir $pl;	1474	my $path = playerdir $pl;
1044	my $temp = "$path~$cf::RUNTIME~deleting~";	1475	my $temp = "$path~$cf::RUNTIME~deleting~";
1045	aio_rename $path, $temp;	1476	aio_rename $path, $temp;
1046	delete $cf::PLAYER{$pl->ob->name};	1477	delete $cf::PLAYER{$pl->ob->name};
1047	$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
1048	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;
1049	}	1500	}
1050		1501
1051	=item cf::player::list_logins	1502	=item cf::player::list_logins
1052		1503
1053	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
1054	while and may block, so not sync_job-capable, ever.	1505	while and may block, so not sync_job-capable, ever.
1055		1506
1056	=cut	1507	=cut
1057		1508
1058	sub list_logins {	1509	sub list_logins {
1059	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1510	my $dirs = aio_readdir $PLAYERDIR
1060	or return [];	1511	or return [];
1061		1512
1062	my @logins;	1513	my @logins;
1063		1514
1064	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") {
1065	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1520	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1066	aio_read $fh, 0, 512, my $buf, 0 or next;	1521	aio_read $fh, 0, 512, my $buf, 0 or next;
1067	$buf !~ /^password -------------$/m or next; # official not-valid tag	1522	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1523	}
1068		1524
1069	utf8::decode $login;	1525	utf8::decode $login;
1070	push @logins, $login;	1526	push @logins, $login;
1071	}	1527	}
1072		1528
…		…
1099	}	1555	}
1100		1556
1101	\@paths	1557	\@paths
1102	}	1558	}
1103		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
1104	=item $player->ext_reply ($msgid, $msgtype, %msg)	1653	=item $player->ext_reply ($msgid, @msg)
1105		1654
1106	Sends an ext reply to the player.	1655	Sends an ext reply to the player.
1107		1656
1108	=cut	1657	=cut
1109		1658
1110	sub ext_reply($$$%) {	1659	sub ext_reply($$@) {
1111	my ($self, $id, %msg) = @_;	1660	my ($self, $id, @msg) = @_;
1112		1661
1113	$msg{msgid} = $id;	1662	$self->ns->ext_reply ($id, @msg)
1114
1115	$self->send ("ext " . cf::to_json \%msg);
1116	}	1663	}
1117		1664
1118	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	$match
		1704	}
1119		1705
1120	=back	1706	=back
1121
1122		1707
1123	=head3 cf::map	1708	=head3 cf::map
1124		1709
1125	=over 4	1710	=over 4
1126		1711
…		…
1181	my ($self, $merge) = @_;	1766	my ($self, $merge) = @_;
1182		1767
1183	# we have to keep some variables in memory intact	1768	# we have to keep some variables in memory intact
1184	local $self->{path};	1769	local $self->{path};
1185	local $self->{load_path};	1770	local $self->{load_path};
1186	local $self->{deny_save};
1187	local $self->{deny_reset};
1188		1771
1189	$self->SUPER::thawer_merge ($merge);	1772	$self->SUPER::thawer_merge ($merge);
1190	}	1773	}
1191		1774
1192	sub normalise {	1775	sub normalise {
…		…
1239	$self->init; # pass $1 etc.	1822	$self->init; # pass $1 etc.
1240	return $self;	1823	return $self;
1241	}	1824	}
1242	}	1825	}
1243		1826
1244	Carp::carp "unable to resolve path '$path' (base '$base').";	1827	Carp::cluck "unable to resolve path '$path' (base '$base').";
1245	()	1828	()
1246	}	1829	}
1247		1830
1248	sub init {	1831	sub init {
1249	my ($self) = @_;	1832	my ($self) = @_;
…		…
1264		1847
1265	# the original (read-only) location	1848	# the original (read-only) location
1266	sub load_path {	1849	sub load_path {
1267	my ($self) = @_;	1850	my ($self) = @_;
1268		1851
1269	sprintf "%s/%s/%s.map", cf::datadir, cf::mapdir, $self->{path}	1852	"$MAPDIR/$self->{path}.map"
1270	}	1853	}
1271		1854
1272	# the temporary/swap location	1855	# the temporary/swap location
1273	sub save_path {	1856	sub save_path {
1274	my ($self) = @_;	1857	my ($self) = @_;
1275		1858
1276	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1859	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1277	sprintf "%s/%s/%s.map", cf::localdir, cf::tmpdir, $path	1860	"$TMPDIR/$path.map"
1278	}	1861	}
1279		1862
1280	# the unique path, undef == no special unique path	1863	# the unique path, undef == no special unique path
1281	sub uniq_path {	1864	sub uniq_path {
1282	my ($self) = @_;	1865	my ($self) = @_;
1283		1866
1284	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;	1867	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
1285	sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $path	1868	"$UNIQUEDIR/$path"
1286	}	1869	}
1287		1870
1288	# and all this just because we cannot iterate over	1871	# and all this just because we cannot iterate over
1289	# all maps in C++...	1872	# all maps in C++...
1290	sub change_all_map_light {	1873	sub change_all_map_light {
…		…
1292		1875
1293	$_->change_map_light ($change)	1876	$_->change_map_light ($change)
1294	for grep $_->outdoor, values %cf::MAP;	1877	for grep $_->outdoor, values %cf::MAP;
1295	}	1878	}
1296		1879
		1880	sub decay_objects {
		1881	my ($self) = @_;
		1882
		1883	return if $self->{deny_reset};
		1884
		1885	$self->do_decay_objects;
		1886	}
		1887
1297	sub unlink_save {	1888	sub unlink_save {
1298	my ($self) = @_;	1889	my ($self) = @_;
1299		1890
1300	utf8::encode (my $save = $self->save_path);	1891	utf8::encode (my $save = $self->save_path);
1301	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;	1892	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
1302	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";	1893	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
1303
1304	#d#TODO remove .map and also nuke
1305	$save =~ s/\.map// or return;#d#
1306	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;#d#
1307	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";#d#
1308	}	1894	}
1309		1895
1310	sub load_header_from($) {	1896	sub load_header_from($) {
1311	my ($self, $path) = @_;	1897	my ($self, $path) = @_;
1312		1898
1313	utf8::encode $path;	1899	utf8::encode $path;
1314	#aio_open $path, O_RDONLY, 0	1900	my $f = new_from_file cf::object::thawer $path
1315	# or return;
1316
1317	$self->_load_header ($path)
1318	or return;	1901	or return;
		1902
		1903	$self->_load_header ($f)
		1904	or return;
		1905
		1906	local $MAP_LOADING{$self->{path}} = $self;
		1907	$f->resolve_delayed_derefs;
1319		1908
1320	$self->{load_path} = $path;	1909	$self->{load_path} = $path;
1321		1910
1322	1	1911	1
1323	}	1912	}
…		…
1362	$self->load_header_orig	1951	$self->load_header_orig
1363	or return;	1952	or return;
1364	$self->prepare_orig;	1953	$self->prepare_orig;
1365	}	1954	}
1366		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 $self->default_region;
		1961
1367	1	1962	1
1368	}	1963	}
1369		1964
1370	sub find;	1965	sub find;
1371	sub find {	1966	sub find {
1372	my ($path, $origin) = @_;	1967	my ($path, $origin) = @_;
1373		1968
1374	$path = normalise $path, $origin && $origin->path;	1969	$path = normalise $path, $origin && $origin->path;
1375		1970
		1971	cf::lock_wait "map_data:$path";#d#remove
1376	cf::lock_wait "map_find:$path";	1972	cf::lock_wait "map_find:$path";
1377		1973
1378	$cf::MAP{$path} || do {	1974	$cf::MAP{$path} || do {
1379	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
1380	my $map = new_from_path cf::map $path	1978	my $map = new_from_path cf::map $path
1381	or return;	1979	or return;
1382		1980
1383	$map->{last_save} = $cf::RUNTIME;	1981	$map->{last_save} = $cf::RUNTIME;
1384		1982
1385	$map->load_header	1983	$map->load_header
1386	or return;	1984	or return;
1387		1985
1388	if ($map->should_reset && 0) {#d#TODO# disabled, crashy (locking issue?)	1986	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
1389	# doing this can freeze the server in a sync job, obviously	1987	# doing this can freeze the server in a sync job, obviously
1390	#$cf::WAIT_FOR_TICK->wait;	1988	#$cf::WAIT_FOR_TICK->wait;
		1989	undef $guard1;
		1990	undef $guard2;
1391	$map->reset;	1991	$map->reset;
1392	undef $guard;
1393	return find $path;	1992	return find $path;
1394	}	1993	}
1395		1994
1396	$cf::MAP{$path} = $map	1995	$cf::MAP{$path} = $map
1397	}	1996	}
…		…
1404	my ($self) = @_;	2003	my ($self) = @_;
1405		2004
1406	local $self->{deny_reset} = 1; # loading can take a long time	2005	local $self->{deny_reset} = 1; # loading can take a long time
1407		2006
1408	my $path = $self->{path};	2007	my $path = $self->{path};
		2008
		2009	{
1409	my $guard = cf::lock_acquire "map_load:$path";	2010	my $guard = cf::lock_acquire "map_data:$path";
1410		2011
		2012	return unless $self->valid;
1411	return if $self->in_memory != cf::MAP_SWAPPED;	2013	return unless $self->in_memory == cf::MAP_SWAPPED;
1412		2014
1413	$self->in_memory (cf::MAP_LOADING);	2015	$self->in_memory (cf::MAP_LOADING);
1414		2016
1415	$self->alloc;	2017	$self->alloc;
1416		2018
1417	$self->pre_load;	2019	$self->pre_load;
		2020	cf::cede_to_tick;
1418		2021
1419	$self->_load_objects ($self->{load_path}, 1)	2022	my $f = new_from_file cf::object::thawer $self->{load_path};
		2023	$f->skip_block;
		2024	$self->_load_objects ($f)
1420	or return;	2025	or return;
1421		2026
1422	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2027	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1423	if delete $self->{load_original};	2028	if delete $self->{load_original};
1424		2029
1425	if (my $uniq = $self->uniq_path) {	2030	if (my $uniq = $self->uniq_path) {
1426	utf8::encode $uniq;	2031	utf8::encode $uniq;
1427	if (aio_open $uniq, O_RDONLY, 0) {	2032	unless (aio_stat $uniq) {
		2033	if (my $f = new_from_file cf::object::thawer $uniq) {
1428	$self->clear_unique_items;	2034	$self->clear_unique_items;
1429	$self->_load_objects ($uniq, 0);	2035	$self->_load_objects ($f);
		2036	$f->resolve_delayed_derefs;
		2037	}
1430	}	2038	}
1431	}	2039	}
1432		2040
1433	Coro::cede;	2041	$f->resolve_delayed_derefs;
1434		2042
		2043	cf::cede_to_tick;
1435	# now do the right thing for maps	2044	# now do the right thing for maps
1436	$self->link_multipart_objects;	2045	$self->link_multipart_objects;
1437
1438	unless ($self->{deny_activate}) {
1439	$self->decay_objects;
1440	$self->fix_auto_apply;
1441	$self->update_buttons;
1442	Coro::cede;
1443	$self->set_darkness_map;
1444	$self->difficulty ($self->estimate_difficulty)	2046	$self->difficulty ($self->estimate_difficulty)
1445	unless $self->difficulty;	2047	unless $self->difficulty;
1446	Coro::cede;	2048	cf::cede_to_tick;
		2049
		2050	unless ($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;
1447	$self->activate;	2057	$self->activate;
		2058	}
		2059
		2060	$self->{last_save} = $cf::RUNTIME;
		2061	$self->last_access ($cf::RUNTIME);
		2062
		2063	$self->in_memory (cf::MAP_IN_MEMORY);
1448	}	2064	}
1449		2065
1450	$self->post_load;	2066	$self->post_load;
1451
1452	$self->in_memory (cf::MAP_IN_MEMORY);
1453	}	2067	}
1454		2068
1455	sub customise_for {	2069	sub customise_for {
1456	my ($self, $ob) = @_;	2070	my ($self, $ob) = @_;
1457		2071
1458	return find "~" . $ob->name . "/" . $self->{path}	2072	return find "~" . $ob->name . "/" . $self->{path}
1459	if $self->per_player;	2073	if $self->per_player;
1460		2074
		2075	# return find "?party/" . $ob->name . "/" . $self->{path}
		2076	# if $self->per_party;
		2077
1461	$self	2078	$self
1462	}	2079	}
1463		2080
1464	# find and load all maps in the 3x3 area around a map	2081	# find and load all maps in the 3x3 area around a map
1465	sub load_diag {	2082	sub load_neighbours {
1466	my ($map) = @_;	2083	my ($map) = @_;
1467		2084
1468	my @diag; # diagonal neighbours	2085	my @neigh; # diagonal neighbours
1469		2086
1470	for (0 .. 3) {	2087	for (0 .. 3) {
1471	my $neigh = $map->tile_path ($_)	2088	my $neigh = $map->tile_path ($_)
1472	or next;	2089	or next;
1473	$neigh = find $neigh, $map	2090	$neigh = find $neigh, $map
1474	or next;	2091	or next;
1475	$neigh->load;	2092	$neigh->load;
1476		2093
		2094	push @neigh,
1477	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2095	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1478	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2096	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1479	}	2097	}
1480		2098
1481	for (@diag) {	2099	for (grep defined $_->[0], @neigh) {
		2100	my ($path, $origin) = @$_;
1482	my $neigh = find @$_	2101	my $neigh = find $path, $origin
1483	or next;	2102	or next;
1484	$neigh->load;	2103	$neigh->load;
1485	}	2104	}
1486	}	2105	}
1487		2106
…		…
1492	}	2111	}
1493		2112
1494	sub do_load_sync {	2113	sub do_load_sync {
1495	my ($map) = @_;	2114	my ($map) = @_;
1496		2115
		2116	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2117	if $Coro::current == $Coro::main;
		2118
1497	cf::sync_job { $map->load };	2119	cf::sync_job { $map->load };
1498	}	2120	}
1499		2121
1500	our %MAP_PREFETCH;	2122	our %MAP_PREFETCH;
1501	our $MAP_PREFETCHER = undef;	2123	our $MAP_PREFETCHER = undef;
1502		2124
1503	sub find_async {	2125	sub find_async {
1504	my ($path, $origin) = @_;	2126	my ($path, $origin, $load) = @_;
1505		2127
1506	$path = normalise $path, $origin && $origin->{path};	2128	$path = normalise $path, $origin && $origin->{path};
1507		2129
1508	if (my $map = $cf::MAP{$path}) {	2130	if (my $map = $cf::MAP{$path}) {
1509	return $map if $map->in_memory == cf::MAP_IN_MEMORY;	2131	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
1510	}	2132	}
1511		2133
1512	undef $MAP_PREFETCH{$path};	2134	$MAP_PREFETCH{$path} |= $load;
		2135
1513	$MAP_PREFETCHER ||= cf::async {	2136	$MAP_PREFETCHER ||= cf::async {
		2137	$Coro::current->{desc} = "map prefetcher";
		2138
1514	while (%MAP_PREFETCH) {	2139	while (%MAP_PREFETCH) {
1515	for my $path (keys %MAP_PREFETCH) {	2140	while (my ($k, $v) = each %MAP_PREFETCH) {
1516	my $map = find $path	2141	if (my $map = find $k) {
1517	or next;
1518	$map->load;	2142	$map->load if $v;
		2143	}
1519		2144
1520	delete $MAP_PREFETCH{$path};	2145	delete $MAP_PREFETCH{$k};
1521	}	2146	}
1522	}	2147	}
1523	undef $MAP_PREFETCHER;	2148	undef $MAP_PREFETCHER;
1524	};	2149	};
1525	$MAP_PREFETCHER->prio (6);	2150	$MAP_PREFETCHER->prio (6);
…		…
1528	}	2153	}
1529		2154
1530	sub save {	2155	sub save {
1531	my ($self) = @_;	2156	my ($self) = @_;
1532		2157
1533	my $lock = cf::lock_acquire "map_data:" . $self->path;	2158	my $lock = cf::lock_acquire "map_data:$self->{path}";
1534		2159
1535	$self->{last_save} = $cf::RUNTIME;	2160	$self->{last_save} = $cf::RUNTIME;
1536		2161
1537	return unless $self->dirty;	2162	return unless $self->dirty;
1538		2163
…		…
1544	return if $self->{deny_save};	2169	return if $self->{deny_save};
1545		2170
1546	local $self->{last_access} = $self->last_access;#d#	2171	local $self->{last_access} = $self->last_access;#d#
1547		2172
1548	cf::async {	2173	cf::async {
		2174	$Coro::current->{desc} = "map player save";
1549	$_->contr->save for $self->players;	2175	$_->contr->save for $self->players;
1550	};	2176	};
1551		2177
1552	if ($uniq) {	2178	if ($uniq) {
1553	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2179	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
…		…
1561	my ($self) = @_;	2187	my ($self) = @_;
1562		2188
1563	# save first because save cedes	2189	# save first because save cedes
1564	$self->save;	2190	$self->save;
1565		2191
1566	my $lock = cf::lock_acquire "map_data:" . $self->path;	2192	my $lock = cf::lock_acquire "map_data:$self->{path}";
1567		2193
1568	return if $self->players;	2194	return if $self->players;
1569	return if $self->in_memory != cf::MAP_IN_MEMORY;	2195	return if $self->in_memory != cf::MAP_IN_MEMORY;
1570	return if $self->{deny_save};	2196	return if $self->{deny_save};
1571		2197
		2198	$self->in_memory (cf::MAP_SWAPPED);
		2199
		2200	$self->deactivate;
		2201	$_->clear_links_to ($self) for values %cf::MAP;
1572	$self->clear;	2202	$self->clear;
1573	$self->in_memory (cf::MAP_SWAPPED);
1574	}	2203	}
1575		2204
1576	sub reset_at {	2205	sub reset_at {
1577	my ($self) = @_;	2206	my ($self) = @_;
1578		2207
1579	# TODO: safety, remove and allow resettable per-player maps	2208	# TODO: safety, remove and allow resettable per-player maps
1580	return 1e99 if $self->isa ("ext::map_per_player");#d#
1581	return 1e99 if $self->{deny_reset};	2209	return 1e99 if $self->{deny_reset};
1582		2210
1583	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2211	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1584	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2212	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1585		2213
…		…
1596	my ($self) = @_;	2224	my ($self) = @_;
1597		2225
1598	my $lock = cf::lock_acquire "map_data:$self->{path}";	2226	my $lock = cf::lock_acquire "map_data:$self->{path}";
1599		2227
1600	return if $self->players;	2228	return if $self->players;
1601	return if $self->isa ("ext::map_per_player");#d#
1602		2229
1603	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	}
1604		2241
1605	delete $cf::MAP{$self->path};	2242	delete $cf::MAP{$self->path};
1606		2243
1607	$self->in_memory (cf::MAP_SWAPPED);	2244	$self->deactivate;
		2245	$_->clear_links_to ($self) for values %cf::MAP;
1608	$self->clear;	2246	$self->clear;
1609
1610	$_->clear_links_to ($self) for values %cf::MAP;
1611		2247
1612	$self->unlink_save;	2248	$self->unlink_save;
1613	$self->destroy;	2249	$self->destroy;
1614	}	2250	}
1615		2251
1616	my $nuke_counter = "aaaa";	2252	my $nuke_counter = "aaaa";
1617		2253
1618	sub nuke {	2254	sub nuke {
1619	my ($self) = @_;	2255	my ($self) = @_;
1620		2256
		2257	{
		2258	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2259
1621	delete $cf::MAP{$self->path};	2260	delete $cf::MAP{$self->path};
1622		2261
1623	$self->unlink_save;	2262	$self->unlink_save;
1624		2263
1625	bless $self, "cf::map";	2264	bless $self, "cf::map";
1626	delete $self->{deny_reset};	2265	delete $self->{deny_reset};
1627	$self->{deny_save} = 1;	2266	$self->{deny_save} = 1;
1628	$self->reset_timeout (1);	2267	$self->reset_timeout (1);
1629	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));	2268	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
1630		2269
1631	$cf::MAP{$self->path} = $self;	2270	$cf::MAP{$self->path} = $self;
		2271	}
1632		2272
1633	$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	]
1634	}	2310	}
1635		2311
1636	=item cf::map::unique_maps	2312	=item cf::map::unique_maps
1637		2313
1638	Returns an arrayref of paths of all shared maps that have	2314	Returns an arrayref of paths of all shared maps that have
1639	instantiated unique items. May block.	2315	instantiated unique items. May block.
1640		2316
1641	=cut	2317	=cut
1642		2318
1643	sub unique_maps() {	2319	sub unique_maps() {
1644	my $files = aio_readdir cf::localdir . "/" . cf::uniquedir	2320	[
1645	or return;	2321	map {
1646
1647	my @paths;
1648
1649	for (@$files) {
1650	utf8::decode $_;	2322	utf8::decode $_;
1651	next if /\.pst$/;	2323	/\.map$/
1652	next unless /^$PATH_SEP/o;	2324	? normalise $_
1653		2325	: ()
1654	push @paths, cf::map::normalise $_;	2326	} @{ aio_readdir $UNIQUEDIR or [] }
1655	}	2327	]
1656
1657	\@paths
1658	}	2328	}
1659		2329
1660	package cf;	2330	package cf;
1661		2331
1662	=back	2332	=back
…		…
1680	map { $_, inv_recursive_ $_->inv } @_	2350	map { $_, inv_recursive_ $_->inv } @_
1681	}	2351	}
1682		2352
1683	sub inv_recursive {	2353	sub inv_recursive {
1684	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	}
1685	}	2383	}
1686		2384
1687	package cf;	2385	package cf;
1688		2386
1689	=back	2387	=back
…		…
1708		2406
1709	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2407	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1710		2408
1711	if ($self->{record_replies}) {	2409	if ($self->{record_replies}) {
1712	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2410	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2411
1713	} 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 {
1714	$msg = $npc->name . " says: $msg" if $npc;	2420	$msg = $npc->name . " says: $msg" if $npc;
1715	$self->message ($msg, $flags);	2421	$self->message ($msg, $flags);
		2422	}
1716	}	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 (@_);
1717	}	2434	}
1718		2435
1719	=item $player_object->may ("access")	2436	=item $player_object->may ("access")
1720		2437
1721	Returns wether the given player is authorized to access resource "access"	2438	Returns wether the given player is authorized to access resource "access"
…		…
1768	$self->deactivate_recursive;	2485	$self->deactivate_recursive;
1769		2486
1770	return if UNIVERSAL::isa $self->map, "ext::map_link";	2487	return if UNIVERSAL::isa $self->map, "ext::map_link";
1771		2488
1772	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2489	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1773	if $self->map;	2490	if $self->map && $self->map->{path} ne "{link}";
1774		2491
1775	$self->enter_map ($LINK_MAP || link_map, 10, 10);	2492	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1776	}	2493	}
1777		2494
1778	sub cf::object::player::leave_link {	2495	sub cf::object::player::leave_link {
1779	my ($self, $map, $x, $y) = @_;	2496	my ($self, $map, $x, $y) = @_;
		2497
		2498	return unless $self->contr->active;
1780		2499
1781	my $link_pos = delete $self->{_link_pos};	2500	my $link_pos = delete $self->{_link_pos};
1782		2501
1783	unless ($map) {	2502	unless ($map) {
1784	# restore original map position	2503	# restore original map position
…		…
1798	# use -1 or undef as default coordinates, not 0, 0	2517	# use -1 or undef as default coordinates, not 0, 0
1799	($x, $y) = ($map->enter_x, $map->enter_y)	2518	($x, $y) = ($map->enter_x, $map->enter_y)
1800	if $x <=0 && $y <= 0;	2519	if $x <=0 && $y <= 0;
1801		2520
1802	$map->load;	2521	$map->load;
1803	$map->load_diag;	2522	$map->load_neighbours;
1804		2523
1805	return unless $self->contr->active;	2524	return unless $self->contr->active;
1806	$self->activate_recursive;	2525	$self->activate_recursive;
		2526
		2527	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1807	$self->enter_map ($map, $x, $y);	2528	$self->enter_map ($map, $x, $y);
1808	}	2529	}
1809		2530
1810	cf::player->attach (	2531	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1811	on_logout => sub {
1812	my ($pl) = @_;
1813		2532
1814	# abort map switching before logout	2533	Moves the player to the given map-path and coordinates by first freezing
1815	if ($pl->ob->{_link_pos}) {	2534	her, loading and preparing them map, calling the provided $check callback
1816	cf::sync_job {	2535	that has to return the map if sucecssful, and then unfreezes the player on
1817	$pl->ob->leave_link	2536	the new (success) or old (failed) map position. In either case, $done will
1818	};	2537	be called at the end of this process.
1819	}
1820	},
1821	on_login => sub {
1822	my ($pl) = @_;
1823		2538
1824	# try to abort aborted map switching on player login :)
1825	# should happen only on crashes
1826	if ($pl->ob->{_link_pos}) {
1827	$pl->ob->enter_link;
1828	(async {
1829	# we need this sleep as the login has a concurrent enter_exit running
1830	# and this sleep increases chances of the player not ending up in scorn
1831	$pl->ob->reply (undef,
1832	"There was an internal problem at your last logout, "
1833	. "the server will try to bring you to your intended destination in a second.",
1834	cf::NDI_RED);
1835	Coro::Timer::sleep 1;
1836	$pl->ob->leave_link;
1837	})->prio (2);
1838	}
1839	},
1840	);
1841
1842	=item $player_object->goto ($path, $x, $y)
1843
1844	=cut	2539	=cut
		2540
		2541	our $GOTOGEN;
1845		2542
1846	sub cf::object::player::goto {	2543	sub cf::object::player::goto {
1847	my ($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;
1848		2548
1849	$self->enter_link;	2549	$self->enter_link;
1850		2550
1851	(async {	2551	(async {
		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
1852	my $map = eval {	2573	my $map = eval {
1853	my $map = cf::map::find $path;	2574	my $map = defined $path ? cf::map::find $path : undef;
		2575
		2576	if ($map) {
1854	$map = $map->customise_for ($self) if $map;	2577	$map = $map->customise_for ($self);
		2578	$map = $check->($map) if $check && $map;
		2579	} else {
		2580	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2581	}
		2582
1855	$map	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 $@;
1856	} or	2589	}
1857	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
1858		2590
		2591	if ($gen == $self->{_goto_generation}) {
		2592	delete $self->{_goto_generation};
1859	$self->leave_link ($map, $x, $y);	2593	$self->leave_link ($map, $x, $y);
		2594	}
		2595
		2596	$done->() if $done;
1860	})->prio (1);	2597	})->prio (1);
1861	}	2598	}
1862		2599
1863	=item $player_object->enter_exit ($exit_object)	2600	=item $player_object->enter_exit ($exit_object)
1864		2601
…		…
1901	$rmp->{origin_y} = $exit->y;	2638	$rmp->{origin_y} = $exit->y;
1902	}	2639	}
1903		2640
1904	$rmp->{random_seed} ||= $exit->random_seed;	2641	$rmp->{random_seed} ||= $exit->random_seed;
1905		2642
1906	my $data = cf::to_json $rmp;	2643	my $data = cf::encode_json $rmp;
1907	my $md5 = Digest::MD5::md5_hex $data;	2644	my $md5 = Digest::MD5::md5_hex $data;
1908	my $meta = "$cf::RANDOM_MAPS/$md5.meta";	2645	my $meta = "$RANDOMDIR/$md5.meta";
1909		2646
1910	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {	2647	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1911	aio_write $fh, 0, (length $data), $data, 0;	2648	aio_write $fh, 0, (length $data), $data, 0;
1912	undef $fh;	2649	undef $fh;
1913	aio_rename "$meta~", $meta;	2650	aio_rename "$meta~", $meta;
…		…
1922		2659
1923	return unless $self->type == cf::PLAYER;	2660	return unless $self->type == cf::PLAYER;
1924		2661
1925	if ($exit->slaying eq "/!") {	2662	if ($exit->slaying eq "/!") {
1926	#TODO: this should de-fi-ni-te-ly not be a sync-job	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
1927	cf::sync_job { prepare_random_map $exit };	2666	cf::sync_job { prepare_random_map $exit };
1928	}	2667	}
1929		2668
1930	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;	2669	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
1931	my $hp = $exit->stats->hp;	2670	my $hp = $exit->stats->hp;
1932	my $sp = $exit->stats->sp;	2671	my $sp = $exit->stats->sp;
1933		2672
1934	$self->enter_link;	2673	$self->enter_link;
1935		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
1936	(async {	2679	(async {
		2680	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2681
1937	$self->deactivate_recursive; # just to be sure	2682	$self->deactivate_recursive; # just to be sure
1938	unless (eval {	2683	unless (eval {
1939	$self->goto ($slaying, $hp, $sp);	2684	$self->goto ($slaying, $hp, $sp);
1940		2685
1941	1;	2686	1;
1942	}) {	2687	}) {
1943	$self->message ("Something went wrong deep within the crossfire server. "	2688	$self->message ("Something went wrong deep within the crossfire server. "
1944	. "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. "
1945	. "Please report this to the dungeon master!",	2690	. "Please report this to the dungeon master!",
1946	cf::NDI_UNIQUE | cf::NDI_RED);	2691	cf::NDI_UNIQUE | cf::NDI_RED);
1947		2692
1948	warn "ERROR in enter_exit: $@";	2693	warn "ERROR in enter_exit: $@";
1949	$self->leave_link;	2694	$self->leave_link;
1950	}	2695	}
1951	})->prio (1);	2696	})->prio (1);
…		…
1964		2709
1965	sub cf::client::send_drawinfo {	2710	sub cf::client::send_drawinfo {
1966	my ($self, $text, $flags) = @_;	2711	my ($self, $text, $flags) = @_;
1967		2712
1968	utf8::encode $text;	2713	utf8::encode $text;
1969	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2714	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1970	}	2715	}
1971		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	}
1972		2875
1973	=item $success = $client->query ($flags, "text", \&cb)	2876	=item $success = $client->query ($flags, "text", \&cb)
1974		2877
1975	Queues a query to the client, calling the given callback with	2878	Queues a query to the client, calling the given callback with
1976	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>,
1977	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>.
1978		2881
1979	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
1980	reliable at some point in the future.	2883	become reliable at some point in the future.
1981		2884
1982	=cut	2885	=cut
1983		2886
1984	sub cf::client::query {	2887	sub cf::client::query {
1985	my ($self, $flags, $text, $cb) = @_;	2888	my ($self, $flags, $text, $cb) = @_;
…		…
1993	utf8::encode $text;	2896	utf8::encode $text;
1994	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2897	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1995		2898
1996	$self->send_packet ($self->{query_queue}[0][0])	2899	$self->send_packet ($self->{query_queue}[0][0])
1997	if @{ $self->{query_queue} } == 1;	2900	if @{ $self->{query_queue} } == 1;
		2901
		2902	1
1998	}	2903	}
1999		2904
2000	cf::client->attach (	2905	cf::client->attach (
		2906	on_connect => sub {
		2907	my ($ns) = @_;
		2908
		2909	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2910	},
2001	on_reply => sub {	2911	on_reply => sub {
2002	my ($ns, $msg) = @_;	2912	my ($ns, $msg) = @_;
2003		2913
2004	# this weird shuffling is so that direct followup queries	2914	# this weird shuffling is so that direct followup queries
2005	# get handled first	2915	# get handled first
…		…
2017	} else {	2927	} else {
2018	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2928	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
2019	}	2929	}
2020	}	2930	}
2021	},	2931	},
		2932	on_exticmd => sub {
		2933	my ($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	},
2022	);	2958	);
2023		2959
2024	=item $client->async (\&cb)	2960	=item $client->async (\&cb)
2025		2961
2026	Create a new coroutine, running the specified callback. The coroutine will	2962	Create a new coroutine, running the specified callback. The coroutine will
…		…
2067	our $safe = new Safe "safe";	3003	our $safe = new Safe "safe";
2068	our $safe_hole = new Safe::Hole;	3004	our $safe_hole = new Safe::Hole;
2069		3005
2070	$SIG{FPE} = 'IGNORE';	3006	$SIG{FPE} = 'IGNORE';
2071		3007
2072	$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	));
2073		3013
2074	# here we export the classes and methods available to script code	3014	# here we export the classes and methods available to script code
2075		3015
2076	=pod	3016	=pod
2077		3017
2078	The following fucntions and emthods are available within a safe environment:	3018	The following functions and methods are available within a safe environment:
2079		3019
2080	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
2081	cf::object::player player	3024	cf::object::player
2082	cf::player peaceful	3025	player
2083	cf::map trigger	3026
		3027	cf::player
		3028	peaceful
		3029
		3030	cf::map
		3031	trigger
2084		3032
2085	=cut	3033	=cut
2086		3034
2087	for (	3035	for (
2088	["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)],
2089	["cf::object::player" => qw(player)],	3039	["cf::object::player" => qw(player)],
2090	["cf::player" => qw(peaceful)],	3040	["cf::player" => qw(peaceful)],
2091	["cf::map" => qw(trigger)],	3041	["cf::map" => qw(trigger)],
2092	) {	3042	) {
2093	no strict 'refs';	3043	no strict 'refs';
…		…
2164	=back	3114	=back
2165		3115
2166	=cut	3116	=cut
2167		3117
2168	#############################################################################	3118	#############################################################################
2169
2170	=head2 EXTENSION DATABASE SUPPORT
2171
2172	Crossfire maintains a very simple database for extension use. It can
2173	currently store anything that can be serialised using Storable, which
2174	excludes objects.
2175
2176	The parameter C<$family> should best start with the name of the extension
2177	using it, it should be unique.
2178
2179	=over 4
2180
2181	=item $hashref = cf::db_get $family
2182
2183	Return a hashref for use by the extension C<$family>, which can be
2184	modified. After modifications, you have to call C<cf::db_dirty> or
2185	C<cf::db_sync>.
2186
2187	=item $value = cf::db_get $family => $key
2188
2189	Returns a single value from the database
2190
2191	=item cf::db_put $family => $hashref
2192
2193	Stores the given family hashref into the database. Updates are delayed, if
2194	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2195
2196	=item cf::db_put $family => $key => $value
2197
2198	Stores the given C<$value> in the family hash. Updates are delayed, if you
2199	want the data to be synced to disk immediately, use C<cf::db_sync>.
2200
2201	=item cf::db_dirty
2202
2203	Marks the database as dirty, to be updated at a later time.
2204
2205	=item cf::db_sync
2206
2207	Immediately write the database to disk I<if it is dirty>.
2208
2209	=cut
2210
2211	our $DB;
2212
2213	{
2214	my $path = cf::localdir . "/database.pst";
2215
2216	sub db_load() {
2217	$DB = stat $path ? Storable::retrieve $path : { };
2218	}
2219
2220	my $pid;
2221
2222	sub db_save() {
2223	waitpid $pid, 0 if $pid;
2224	if (0 == ($pid = fork)) {
2225	$DB->{_meta}{version} = 1;
2226	Storable::nstore $DB, "$path~";
2227	rename "$path~", $path;
2228	cf::_exit 0 if defined $pid;
2229	}
2230	}
2231
2232	my $dirty;
2233
2234	sub db_sync() {
2235	db_save if $dirty;
2236	undef $dirty;
2237	}
2238
2239	my $idle = Event->idle (
2240	reentrant => 0,
2241	min => 10,
2242	max => 20,
2243	repeat => 0,
2244	data => WF_AUTOCANCEL,
2245	cb => \&db_sync,
2246	);
2247
2248	sub db_dirty() {
2249	$dirty = 1;
2250	$idle->start;
2251	}
2252
2253	sub db_get($;$) {
2254	@_ >= 2
2255	? $DB->{$_[0]}{$_[1]}
2256	: ($DB->{$_[0]} ||= { })
2257	}
2258
2259	sub db_put($$;$) {
2260	if (@_ >= 3) {
2261	$DB->{$_[0]}{$_[1]} = $_[2];
2262	} else {
2263	$DB->{$_[0]} = $_[1];
2264	}
2265	db_dirty;
2266	}
2267
2268	cf::global->attach (
2269	prio => 10000,
2270	on_cleanup => sub {
2271	db_sync;
2272	},
2273	);
2274	}
2275
2276	#############################################################################
2277	# the server's init and main functions	3119	# the server's init and main functions
2278		3120
2279	sub load_resources {	3121	sub load_facedata($) {
2280	load_regions sprintf "%s/%s/regions", cf::datadir, cf::mapdir	3122	my ($path) = @_;
		3123
		3124	# HACK to clear player env face cache, we need some signal framework
		3125	# for this (global event?)
		3126	%ext::player_env::MUSIC_FACE_CACHE = ();
		3127
		3128	my $enc = JSON::XS->new->utf8->canonical->relaxed;
		3129
		3130	warn "loading facedata from $path\n";
		3131
		3132	my $facedata;
		3133	0 < aio_load $path, $facedata
		3134	or die "$path: $!";
		3135
		3136	$facedata = Coro::Storable::thaw $facedata;
		3137
		3138	$facedata->{version} == 2
		3139	or cf::cleanup "$path: version mismatch, cannot proceed.";
		3140
		3141	# patch in the exptable
		3142	$facedata->{resource}{"res/exp_table"} = {
		3143	type => FT_RSRC,
		3144	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
		3145	};
		3146	cf::cede_to_tick;
		3147
		3148	{
		3149	my $faces = $facedata->{faceinfo};
		3150
		3151	while (my ($face, $info) = each %$faces) {
		3152	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		3153	cf::face::set_visibility $idx, $info->{visibility};
		3154	cf::face::set_magicmap $idx, $info->{magicmap};
		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};
		3157
		3158	cf::cede_to_tick;
		3159	}
		3160
		3161	while (my ($face, $info) = each %$faces) {
		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	}
		3171
		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"
2281	or die "unable to load regions file\n";#d#	3253	or die "unable to load regions file\n";
2282	}
2283		3254
2284	sub cfg_load {	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 {
2285	open my $fh, "<:utf8", cf::confdir . "/config"	3298	open my $fh, "<:utf8", "$CONFDIR/config"
2286	or return;	3299	or return;
2287		3300
2288	local $/;	3301	local $/;
2289	*CFG = YAML::Syck::Load <$fh>;	3302	*CFG = YAML::Syck::Load <$fh>;
2290		3303
…		…
2300	};	3313	};
2301	warn $@ if $@;	3314	warn $@ if $@;
2302	}	3315	}
2303	}	3316	}
2304		3317
2305	sub init {
2306	load_resources;
2307	}
2308
2309	sub main {	3318	sub main {
2310	# we must not ever block the main coroutine	3319	# we must not ever block the main coroutine
2311	local $Coro::idle = sub {	3320	local $Coro::idle = sub {
2312	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#
2313	(async {	3322	(async {
2314	Event::one_event;	3323	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3324	EV::loop EV::LOOP_ONESHOT;
2315	})->prio (Coro::PRIO_MAX);	3325	})->prio (Coro::PRIO_MAX);
2316	};	3326	};
2317		3327
2318	cfg_load;	3328	reload_config;
2319	db_load;	3329	db_init;
2320	load_extensions;	3330	load_extensions;
2321		3331
2322	$TICK_WATCHER->start;	3332	$TICK_WATCHER->start;
		3333	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
2323	Event::loop;	3334	EV::loop;
2324	}	3335	}
2325		3336
2326	#############################################################################	3337	#############################################################################
2327	# initialisation and cleanup	3338	# initialisation and cleanup
2328		3339
2329	# install some emergency cleanup handlers	3340	# install some emergency cleanup handlers
2330	BEGIN {	3341	BEGIN {
		3342	our %SIGWATCHER = ();
2331	for my $signal (qw(INT HUP TERM)) {	3343	for my $signal (qw(INT HUP TERM)) {
2332	Event->signal (	3344	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2333	reentrant => 0,
2334	data => WF_AUTOCANCEL,
2335	signal => $signal,
2336	prio => 0,
2337	cb => sub {
2338	cf::cleanup "SIG$signal";	3345	cf::cleanup "SIG$signal";
2339	},
2340	);	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
2341	}	3385	1
2342	}	3386	}
2343		3387
2344	sub emergency_save() {	3388	sub emergency_save() {
2345	my $freeze_guard = cf::freeze_mainloop;	3389	my $freeze_guard = cf::freeze_mainloop;
2346		3390
…		…
2352	# and maps saved/destroyed asynchronously.	3396	# and maps saved/destroyed asynchronously.
2353	warn "begin emergency player save\n";	3397	warn "begin emergency player save\n";
2354	for my $login (keys %cf::PLAYER) {	3398	for my $login (keys %cf::PLAYER) {
2355	my $pl = $cf::PLAYER{$login} or next;	3399	my $pl = $cf::PLAYER{$login} or next;
2356	$pl->valid or next;	3400	$pl->valid or next;
		3401	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2357	$pl->save;	3402	$pl->save;
2358	}	3403	}
2359	warn "end emergency player save\n";	3404	warn "end emergency player save\n";
2360		3405
2361	warn "begin emergency map save\n";	3406	warn "begin emergency map save\n";
…		…
2363	my $map = $cf::MAP{$path} or next;	3408	my $map = $cf::MAP{$path} or next;
2364	$map->valid or next;	3409	$map->valid or next;
2365	$map->save;	3410	$map->save;
2366	}	3411	}
2367	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";
2368	};	3417	};
2369		3418
2370	warn "leave emergency perl save\n";	3419	warn "leave emergency perl save\n";
2371	}	3420	}
2372		3421
		3422	sub post_cleanup {
		3423	my ($make_core) = @_;
		3424
		3425	warn Carp::longmess "post_cleanup backtrace"
		3426	if $make_core;
		3427	}
		3428
2373	sub reload() {	3429	sub do_reload_perl() {
2374	# can/must only be called in main	3430	# can/must only be called in main
2375	if ($Coro::current != $Coro::main) {	3431	if ($Coro::current != $Coro::main) {
2376	warn "can only reload from main coroutine";	3432	warn "can only reload from main coroutine";
2377	return;	3433	return;
2378	}	3434	}
2379		3435
2380	warn "reloading...";	3436	warn "reloading...";
2381		3437
2382	warn "cancelling server ticker";	3438	warn "entering sync_job";
2383	$TICK_WATCHER->cancel;
2384		3439
		3440	cf::sync_job {
		3441	cf::write_runtime; # external watchdog should not bark
2385	cf::emergency_save;	3442	cf::emergency_save;
		3443	cf::write_runtime; # external watchdog should not bark
2386		3444
2387	eval {	3445	warn "syncing database to disk";
		3446	BDB::db_env_txn_checkpoint $DB_ENV;
		3447
2388	# 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
2389
2390	warn "syncing database to disk";
2391	cf::db_sync;
2392
2393	warn "cancelling all WF_AUTOCANCEL watchers";
2394	for (Event::all_watchers) {
2395	$_->cancel if $_->data & WF_AUTOCANCEL;
2396	}
2397		3449
2398	warn "flushing outstanding aio requests";	3450	warn "flushing outstanding aio requests";
2399	for (;;) {	3451	for (;;) {
		3452	BDB::flush;
2400	IO::AIO::flush;	3453	IO::AIO::flush;
2401	Coro::cede;	3454	Coro::cede_notself;
2402	last unless IO::AIO::nreqs;	3455	last unless IO::AIO::nreqs || BDB::nreqs;
2403	warn "iterate...";	3456	warn "iterate...";
2404	}	3457	}
		3458
		3459	++$RELOAD;
2405		3460
2406	warn "cancelling all extension coros";	3461	warn "cancelling all extension coros";
2407	$_->cancel for values %EXT_CORO;	3462	$_->cancel for values %EXT_CORO;
2408	%EXT_CORO = ();	3463	%EXT_CORO = ();
2409		3464
2410	warn "removing commands";	3465	warn "removing commands";
2411	%COMMAND = ();	3466	%COMMAND = ();
2412		3467
2413	warn "removing ext commands";	3468	warn "removing ext/exti commands";
2414	%EXTCMD = ();	3469	%EXTCMD = ();
		3470	%EXTICMD = ();
2415		3471
2416	warn "unloading/nuking all extensions";	3472	warn "unloading/nuking all extensions";
2417	for my $pkg (@EXTS) {	3473	for my $pkg (@EXTS) {
2418	warn "... unloading $pkg";	3474	warn "... unloading $pkg";
2419		3475
…		…
2449	Symbol::delete_package "safe::$_"	3505	Symbol::delete_package "safe::$_"
2450	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);
2451		3507
2452	warn "unloading cf.pm \"a bit\"";	3508	warn "unloading cf.pm \"a bit\"";
2453	delete $INC{"cf.pm"};	3509	delete $INC{"cf.pm"};
		3510	delete $INC{"cf/pod.pm"};
2454		3511
2455	# don't, removes xs symbols, too,	3512	# don't, removes xs symbols, too,
2456	# and global variables created in xs	3513	# and global variables created in xs
2457	#Symbol::delete_package __PACKAGE__;	3514	#Symbol::delete_package __PACKAGE__;
2458		3515
…		…
2461	warn "reloading cf.pm";	3518	warn "reloading cf.pm";
2462	require cf;	3519	require cf;
2463	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3520	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2464		3521
2465	warn "loading config and database again";	3522	warn "loading config and database again";
2466	cf::cfg_load;	3523	cf::reload_config;
2467	cf::db_load;
2468		3524
2469	warn "loading extensions";	3525	warn "loading extensions";
2470	cf::load_extensions;	3526	cf::load_extensions;
2471		3527
2472	warn "reattaching attachments to objects/players";	3528	warn "reattaching attachments to objects/players";
2473	_global_reattach;	3529	_global_reattach; # objects, sockets
2474	warn "reattaching attachments to maps";	3530	warn "reattaching attachments to maps";
2475	reattach $_ for values %MAP;	3531	reattach $_ for values %MAP;
		3532	warn "reattaching attachments to players";
		3533	reattach $_ for values %PLAYER;
2476		3534
2477	warn "loading reloadable resources";	3535	warn "leaving sync_job";
2478	load_resources;
2479		3536
2480	warn "restarting server ticker";	3537	1
2481		3538	} or do {
2482	$TICK_WATCHER->start;
2483	};
2484
2485	if ($@) {
2486	warn $@;	3539	warn $@;
2487	warn "error while reloading, exiting.";	3540	warn "error while reloading, exiting.";
2488	exit 1;	3541	exit 1;
2489	}	3542	};
2490		3543
2491	warn "reloaded";	3544	warn "reloaded";
2492	};	3545	};
2493		3546
2494	our $RELOAD_WATCHER; # used only during reload	3547	our $RELOAD_WATCHER; # used only during reload
2495		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
2496	register_command "reload" => sub {	3559	register_command "reload" => sub {
2497	my ($who, $arg) = @_;	3560	my ($who, $arg) = @_;
2498		3561
2499	if ($who->flag (FLAG_WIZ)) {	3562	if ($who->flag (FLAG_WIZ)) {
2500	$who->message ("reloading server.");	3563	$who->message ("reloading server.");
		3564	async {
		3565	$Coro::current->{desc} = "perl_reload";
		3566	reload_perl;
		3567	};
		3568	}
		3569	};
2501		3570
2502	# doing reload synchronously and two reloads happen back-to-back,	3571	unshift @INC, $LIBDIR;
2503	# coro crashes during coro_state_free->destroy here.
2504		3572
2505	$RELOAD_WATCHER ||= Event->timer (	3573	my $bug_warning = 0;
2506	reentrant => 0,	3574
2507	after => 0,	3575	our @WAIT_FOR_TICK;
2508	data => WF_AUTOCANCEL,	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
		3605	cf::server_tick; # one server iteration
		3606
		3607	$RUNTIME += $TICK;
		3608	$NEXT_TICK += $TICK;
		3609
		3610	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3611	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3612	Coro::async_pool {
		3613	$Coro::current->{desc} = "runtime saver";
		3614	write_runtime
		3615	or warn "ERROR: unable to write runtime file: $!";
		3616	};
		3617	}
		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	(
2509	cb => sub {	3642	sub {
2510	reload;	3643	$status = $!;
2511	undef $RELOAD_WATCHER;	3644	$current->ready; undef $current;
2512	},	3645	},
		3646	sub {
		3647	Coro::schedule while defined $current;
		3648	$! = $status;
		3649	},
2513	);	3650	)
2514	}	3651	};
2515	};
2516		3652
2517	unshift @INC, $LIBDIR;	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);
2518		3659
2519	my $bug_warning = 0;	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;
2520		3668
2521	$TICK_WATCHER = Event->timer (	3669	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
2522	reentrant => 0,	3670	};
2523	parked => 1,	3671
2524	prio => 0,	3672	cf::cleanup "db_env_open(db): $@" if $@;
2525	at => $NEXT_TICK || $TICK,
2526	data => WF_AUTOCANCEL,
2527	cb => sub {
2528	if ($Coro::current != $Coro::main) {
2529	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
2530	unless ++$bug_warning > 10;
2531	return;
2532	}	3673	};
2533
2534	$NOW = Event::time;
2535
2536	cf::server_tick; # one server iteration
2537	$RUNTIME += $TICK;
2538	$NEXT_TICK += $TICK;
2539
2540	$WAIT_FOR_TICK->broadcast;
2541	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;
2542
2543	Event::sweep;
2544	Coro::cede_notself;
2545
2546	# my $AFTER = Event::time;
2547	# warn $AFTER - $NOW;#d#
2548
2549	# if we are delayed by four ticks or more, skip them all
2550	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2551
2552	$TICK_WATCHER->at ($NEXT_TICK);
2553	$TICK_WATCHER->start;
2554	},	3674	}
2555	);
2556		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;
2557	IO::AIO::max_poll_time $TICK * 0.1;	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	}
2558		3694
2559	undef $Coro::AIO::WATCHER;	3695	my $_log_backtrace;
2560	$AIO_POLL_WATCHER = Event->io (
2561	reentrant => 0,
2562	fd => IO::AIO::poll_fileno,
2563	poll => 'r',
2564	prio => 6,
2565	data => WF_AUTOCANCEL,
2566	cb => \&IO::AIO::poll_cb,
2567	);
2568		3696
2569	$WRITE_RUNTIME_WATCHER = Event->timer (	3697	sub _log_backtrace {
2570	reentrant => 0,	3698	my ($msg, @addr) = @_;
2571	data => WF_AUTOCANCEL,	3699
2572	after => 1,	3700	$msg =~ s/\n//;
2573	interval => 10,	3701
2574	prio => 6, # keep it lowest so it acts like a watchdog	3702	# limit the # of concurrent backtraces
2575	cb => Coro::unblock_sub {	3703	if ($_log_backtrace < 2) {
2576	write_runtime	3704	++$_log_backtrace;
2577	or warn "ERROR: unable to write runtime file: $!";	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";
2578	},	3732	}
2579	);	3733	}
		3734
		3735	# load additional modules
		3736	use cf::pod;
2580		3737
2581	END { cf::emergency_save }	3738	END { cf::emergency_save }
2582		3739
2583	1	3740	1
2584		3741

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