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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.136 by root, Fri Jan 5 01:06:28 2007 UTC vs.
Revision 1.394 by root, Thu Nov 8 19:43:25 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 Event;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
		13	use Storable ();
12		14
13	use Coro 3.3 ();	15	use Coro 4.1 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
		24	use Coro::Util ();
19		25
		26	use JSON::XS ();
		27	use BDB ();
		28	use Data::Dumper;
20	use Digest::MD5;	29	use Digest::MD5;
21	use Fcntl;	30	use Fcntl;
22	use IO::AIO 2.31 ();
23	use YAML::Syck ();	31	use YAML::Syck ();
		32	use IO::AIO 2.51 ();
24	use Time::HiRes;	33	use Time::HiRes;
		34	use Compress::LZF;
		35	use Digest::MD5 ();
25		36
		37	# configure various modules to our taste
		38	#
		39	$Storable::canonical = 1; # reduce rsync transfers
		40	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		41	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
		42
26	use Event; $Event::Eval = 1; # no idea why this is required, but it is	43	$Event::Eval = 1; # no idea why this is required, but it is
27		44
28	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	45	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
29	$YAML::Syck::ImplicitUnicode = 1;	46	$YAML::Syck::ImplicitUnicode = 1;
30		47
31	$Coro::main->prio (2); # run main coroutine ("the server") with very high priority	48	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
32		49
33	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	50	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
34		51
35	our %COMMAND = ();	52	our %COMMAND = ();
36	our %COMMAND_TIME = ();	53	our %COMMAND_TIME = ();
		54
		55	our @EXTS = (); # list of extension package names
37	our %EXTCMD = ();	56	our %EXTCMD = ();
		57	our %EXTICMD = ();
		58	our %EXT_CORO = (); # coroutines bound to extensions
		59	our %EXT_MAP = (); # pluggable maps
38		60
		61	our $RELOAD; # number of reloads so far
39	our @EVENT;	62	our @EVENT;
40	our $LIBDIR = datadir . "/ext";
41		63
42	our $TICK = MAX_TIME * 1e-6;	64	our $CONFDIR = confdir;
		65	our $DATADIR = datadir;
		66	our $LIBDIR = "$DATADIR/ext";
		67	our $PODDIR = "$DATADIR/pod";
		68	our $MAPDIR = "$DATADIR/" . mapdir;
		69	our $LOCALDIR = localdir;
		70	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		71	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		72	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		73	our $RANDOMDIR = "$LOCALDIR/random";
		74	our $BDBDIR = "$LOCALDIR/db";
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
43	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
44	our $NEXT_TICK;	80	our $NEXT_TICK;
45	our $NOW;	81	our $NOW;
		82	our $USE_FSYNC = 1; # use fsync to write maps - default off
		83
		84	our $BDB_POLL_WATCHER;
		85	our $BDB_DEADLOCK_WATCHER;
		86	our $BDB_CHECKPOINT_WATCHER;
		87	our $BDB_TRICKLE_WATCHER;
		88	our $DB_ENV;
46		89
47	our %CFG;	90	our %CFG;
48		91
49	our $UPTIME; $UPTIME ||= time;	92	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	93	our $RUNTIME;
51		94
52	our %MAP; # all maps	95	our (%PLAYER, %PLAYER_LOADING); # all users
53	our $LINK_MAP; # the special {link} map	96	our (%MAP, %MAP_LOADING ); # all maps
54	our $RANDOM_MAPS = cf::localdir . "/random";	97	our $LINK_MAP; # the special {link} map, which is always available
55	our %EXT_CORO;	98
		99	# used to convert map paths into valid unix filenames by replacing / by ∕
		100	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		101
		102	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		103	our $LOADAVG; # same thing, but with alpha-smoothing
		104	our $tick_start; # for load detecting purposes
56		105
57	binmode STDOUT;	106	binmode STDOUT;
58	binmode STDERR;	107	binmode STDERR;
59		108
60	# read virtual server time, if available	109	# read virtual server time, if available
61	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
62	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
63	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
64	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
65	}	114	}
66		115
67	mkdir cf::localdir;	116	mkdir $_
68	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
69	mkdir cf::localdir . "/" . cf::tmpdir;
70	mkdir cf::localdir . "/" . cf::uniquedir;
71	mkdir $RANDOM_MAPS;
72		118
73	# a special map that is always available
74	our $LINK_MAP;
75	our $EMERGENCY_POSITION;	119	our $EMERGENCY_POSITION;
		120
		121	sub cf::map::normalise;
76		122
77	#############################################################################	123	#############################################################################
78		124
79	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
80		126
…		…
87	=item $cf::RUNTIME	133	=item $cf::RUNTIME
88		134
89	The time this server has run, starts at 0 and is increased by $cf::TICK on	135	The time this server has run, starts at 0 and is increased by $cf::TICK on
90	every server tick.	136	every server tick.
91		137
92	=item $cf::LIBDIR	138	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		139	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		140	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
93		141
94	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
95	be found. It will be added to C<@INC> automatically.	143	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		144	unique-items directory, player file directory, random maps directory and
		145	database environment.
96		146
97	=item $cf::NOW	147	=item $cf::NOW
98		148
99	The time of the last (current) server tick.	149	The time of the last (current) server tick.
100		150
101	=item $cf::TICK	151	=item $cf::TICK
102		152
103	The interval between server ticks, in seconds.	153	The interval between server ticks, in seconds.
		154
		155	=item $cf::LOADAVG
		156
		157	The current CPU load on the server (alpha-smoothed), as a value between 0
		158	(none) and 1 (overloaded), indicating how much time is spent on processing
		159	objects per tick. Healthy values are < 0.5.
		160
		161	=item $cf::LOAD
		162
		163	The raw value load value from the last tick.
104		164
105	=item %cf::CFG	165	=item %cf::CFG
106		166
107	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/crossfire/config>, or
108	from wherever your confdir points to.	168	from wherever your confdir points to.
		169
		170	=item cf::wait_for_tick, cf::wait_for_tick_begin
		171
		172	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		173	returns directly I<after> the tick processing (and consequently, can only wake one process
		174	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		175
		176	=item @cf::INVOKE_RESULTS
		177
		178	This array contains the results of the last C<invoke ()> call. When
		179	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		180	that call.
109		181
110	=back	182	=back
111		183
112	=cut	184	=cut
113		185
114	BEGIN {	186	BEGIN {
115	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
116	my $msg = join "", @_;	188	my $msg = join "", @_;
117	utf8::encode $msg;
118		189
119	$msg .= "\n"	190	$msg .= "\n"
120	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
121		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		194
122	LOG llevError, "cfperl: $msg";	195	LOG llevError, $msg;
123	};	196	};
124	}	197	}
125		198
126	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	199	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
127	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	200	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
128	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	201	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
129	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	202	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
130	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	203	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		204	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
131	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	205	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
132		206
133	# we bless all objects into (empty) derived classes to force a method lookup	207	# we bless all objects into (empty) derived classes to force a method lookup
134	# within the Safe compartment.	208	# within the Safe compartment.
135	for my $pkg (qw(	209	for my $pkg (qw(
136	cf::global cf::attachable	210	cf::global cf::attachable
…		…
145		219
146	$Event::DIED = sub {	220	$Event::DIED = sub {
147	warn "error in event callback: @_";	221	warn "error in event callback: @_";
148	};	222	};
149		223
150	my %ext_pkg;	224	#############################################################################
151	my @exts;
152	my @hook;
153		225
154	=head2 UTILITY FUNCTIONS	226	=head2 UTILITY FUNCTIONS
155		227
156	=over 4	228	=over 4
157		229
158	=cut	230	=item dumpval $ref
159		231
160	use JSON::Syck (); # TODO# replace by JSON::PC once working	232	=cut
		233
		234	sub dumpval {
		235	eval {
		236	local $SIG{__DIE__};
		237	my $d;
		238	if (1) {
		239	$d = new Data::Dumper([$_[0]], ["*var"]);
		240	$d->Terse(1);
		241	$d->Indent(2);
		242	$d->Quotekeys(0);
		243	$d->Useqq(1);
		244	#$d->Bless(...);
		245	$d->Seen($_[1]) if @_ > 1;
		246	$d = $d->Dump();
		247	}
		248	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		249	$d
		250	} || "[unable to dump $_[0]: '$@']";
		251	}
161		252
162	=item $ref = cf::from_json $json	253	=item $ref = cf::from_json $json
163		254
164	Converts a JSON string into the corresponding perl data structure.	255	Converts a JSON string into the corresponding perl data structure.
165		256
166	=cut
167
168	sub from_json($) {
169	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
170	JSON::Syck::Load $_[0]
171	}
172
173	=item $json = cf::to_json $ref	257	=item $json = cf::to_json $ref
174		258
175	Converts a perl data structure into its JSON representation.	259	Converts a perl data structure into its JSON representation.
176		260
177	=cut	261	=cut
178		262
179	sub to_json($) {	263	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
180	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	264
181	JSON::Syck::Dump $_[0]	265	sub to_json ($) { $json_coder->encode ($_[0]) }
182	}	266	sub from_json ($) { $json_coder->decode ($_[0]) }
183		267
184	=item cf::lock_wait $string	268	=item cf::lock_wait $string
185		269
186	Wait until the given lock is available. See cf::lock_acquire.	270	Wait until the given lock is available. See cf::lock_acquire.
187		271
…		…
190	Wait until the given lock is available and then acquires it and returns	274	Wait until the given lock is available and then acquires it and returns
191	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	275	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
192	for example when the coroutine gets canceled), the lock is automatically	276	for example when the coroutine gets canceled), the lock is automatically
193	returned.	277	returned.
194		278
		279	Locks are *not* recursive, locking from the same coro twice results in a
		280	deadlocked coro.
		281
195	Lock names should begin with a unique identifier (for example, cf::map::find	282	Lock names should begin with a unique identifier (for example, cf::map::find
196	uses map_find and cf::map::load uses map_load).	283	uses map_find and cf::map::load uses map_load).
197		284
		285	=item $locked = cf::lock_active $string
		286
		287	Return true if the lock is currently active, i.e. somebody has locked it.
		288
198	=cut	289	=cut
199		290
200	our %LOCK;	291	our %LOCK;
		292	our %LOCKER;#d#
201		293
202	sub lock_wait($) {	294	sub lock_wait($) {
203	my ($key) = @_;	295	my ($key) = @_;
		296
		297	if ($LOCKER{$key} == $Coro::current) {#d#
		298	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		299	return;#d#
		300	}#d#
204		301
205	# wait for lock, if any	302	# wait for lock, if any
206	while ($LOCK{$key}) {	303	while ($LOCK{$key}) {
207	push @{ $LOCK{$key} }, $Coro::current;	304	push @{ $LOCK{$key} }, $Coro::current;
208	Coro::schedule;	305	Coro::schedule;
…		…
214		311
215	# wait, to be sure we are not locked	312	# wait, to be sure we are not locked
216	lock_wait $key;	313	lock_wait $key;
217		314
218	$LOCK{$key} = [];	315	$LOCK{$key} = [];
		316	$LOCKER{$key} = $Coro::current;#d#
219		317
220	Coro::guard {	318	Coro::guard {
		319	delete $LOCKER{$key};#d#
221	# wake up all waiters, to be on the safe side	320	# wake up all waiters, to be on the safe side
222	$_->ready for @{ delete $LOCK{$key} };	321	$_->ready for @{ delete $LOCK{$key} };
223	}	322	}
224	}	323	}
225		324
226	=item cf::async { BLOCK }	325	sub lock_active($) {
227
228	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the
229	error instead of exiting the server in case of a problem.
230
231	=cut
232
233	sub async(&) {
234	my ($cb) = @_;	326	my ($key) = @_;
235		327
236	Coro::async {	328	! ! $LOCK{$key}
237	eval { $cb->() };
238	warn $@ if $@;
239	}
240	}	329	}
241		330
242	sub freeze_mainloop {	331	sub freeze_mainloop {
243	return unless $TICK_WATCHER->is_active;	332	return unless $TICK_WATCHER->is_active;
244		333
245	my $guard = Coro::guard { $TICK_WATCHER->start };	334	my $guard = Coro::guard {
		335	$TICK_WATCHER->start;
		336	};
246	$TICK_WATCHER->stop;	337	$TICK_WATCHER->stop;
247	$guard	338	$guard
248	}	339	}
249		340
		341	=item cf::get_slot $time[, $priority[, $name]]
		342
		343	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		344	This call blocks and returns only when you have at least C<$time> seconds
		345	of cpu time till the next tick. The slot is only valid till the next cede.
		346
		347	The optional C<$name> can be used to identify the job to run. It might be
		348	used for statistical purposes and should identify the same time-class.
		349
		350	Useful for short background jobs.
		351
		352	=cut
		353
		354	our @SLOT_QUEUE;
		355	our $SLOT_QUEUE;
		356
		357	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		358	$SLOT_QUEUE = Coro::async {
		359	$Coro::current->desc ("timeslot manager");
		360
		361	my $signal = new Coro::Signal;
		362
		363	while () {
		364	next_job:
		365	my $avail = cf::till_tick;
		366	if ($avail > 0.01) {
		367	for (0 .. $#SLOT_QUEUE) {
		368	if ($SLOT_QUEUE[$_][0] < $avail) {
		369	my $job = splice @SLOT_QUEUE, $_, 1, ();
		370	$job->[2]->send;
		371	Coro::cede;
		372	goto next_job;
		373	}
		374	}
		375	}
		376
		377	if (@SLOT_QUEUE) {
		378	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		379	push @cf::WAIT_FOR_TICK, $signal;
		380	$signal->wait;
		381	} else {
		382	Coro::schedule;
		383	}
		384	}
		385	};
		386
		387	sub get_slot($;$$) {
		388	my ($time, $pri, $name) = @_;
		389
		390	$time = $TICK * .6 if $time > $TICK * .6;
		391	my $sig = new Coro::Signal;
		392
		393	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		394	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		395	$SLOT_QUEUE->ready;
		396	$sig->wait;
		397	}
		398
		399	=item cf::async { BLOCK }
		400
		401	Currently the same as Coro::async_pool, meaning you cannot use
		402	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		403	thing you are allowed to do is call C<prio> on it.
		404
		405	=cut
		406
		407	BEGIN { *async = \&Coro::async_pool }
		408
250	=item cf::sync_job { BLOCK }	409	=item cf::sync_job { BLOCK }
251		410
252	The design of crossfire+ requires that the main coro ($Coro::main) is	411	The design of Deliantra requires that the main coroutine ($Coro::main)
253	always able to handle events or runnable, as crossfire+ is only partly	412	is always able to handle events or runnable, as Deliantra is only
254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	413	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		414	acceptable.
255		415
256	If it must be done, put the blocking parts into C<sync_job>. This will run	416	If it must be done, put the blocking parts into C<sync_job>. This will run
257	the given BLOCK in another coroutine while waiting for the result. The	417	the given BLOCK in another coroutine while waiting for the result. The
258	server will be frozen during this time, so the block should either finish	418	server will be frozen during this time, so the block should either finish
259	fast or be very important.	419	fast or be very important.
…		…
262		422
263	sub sync_job(&) {	423	sub sync_job(&) {
264	my ($job) = @_;	424	my ($job) = @_;
265		425
266	if ($Coro::current == $Coro::main) {	426	if ($Coro::current == $Coro::main) {
		427	my $time = Event::time;
		428
267	# this is the main coro, too bad, we have to block	429	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	430	# till the operation succeeds, freezing the server :/
269		431
		432	LOG llevError, Carp::longmess "sync job";#d#
		433
270	# TODO: use suspend/resume instead	434	# TODO: use suspend/resume instead
271	# (but this is cancel-safe)	435	# (but this is cancel-safe)
272	my $freeze_guard = freeze_mainloop;	436	my $freeze_guard = freeze_mainloop;
273		437
274	my $busy = 1;	438	my $busy = 1;
275	my @res;	439	my @res;
276		440
277	(Coro::async {	441	(async {
		442	$Coro::current->desc ("sync job coro");
278	@res = eval { $job->() };	443	@res = eval { $job->() };
279	warn $@ if $@;	444	warn $@ if $@;
280	undef $busy;	445	undef $busy;
281	})->prio (Coro::PRIO_MAX);	446	})->prio (Coro::PRIO_MAX);
282		447
283	while ($busy) {	448	while ($busy) {
		449	if (Coro::nready) {
284	Coro::cede_notself;	450	Coro::cede_notself;
285	Event::one_event unless Coro::nready;	451	} else {
		452	Event::one_event;
286	}	453	}
		454	}
		455
		456	$time = Event::time - $time;
		457
		458	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		459	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		460
		461	$tick_start += $time; # do not account sync jobs to server load
287		462
288	wantarray ? @res : $res[0]	463	wantarray ? @res : $res[0]
289	} else {	464	} else {
290	# we are in another coroutine, how wonderful, everything just works	465	# we are in another coroutine, how wonderful, everything just works
291		466
292	$job->()	467	$job->()
293	}	468	}
294	}	469	}
295		470
296	=item $coro = cf::coro { BLOCK }	471	=item $coro = cf::async_ext { BLOCK }
297		472
298	Creates and returns a new coro. This coro is automcatially being canceled	473	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	474	extension calling this is being unloaded.
300		475
301	=cut	476	=cut
302		477
303	sub coro(&) {	478	sub async_ext(&) {
304	my $cb = shift;	479	my $cb = shift;
305		480
306	my $coro = &cf::async ($cb);	481	my $coro = &Coro::async ($cb);
307		482
308	$coro->on_destroy (sub {	483	$coro->on_destroy (sub {
309	delete $EXT_CORO{$coro+0};	484	delete $EXT_CORO{$coro+0};
310	});	485	});
311	$EXT_CORO{$coro+0} = $coro;	486	$EXT_CORO{$coro+0} = $coro;
312		487
313	$coro	488	$coro
314	}	489	}
315		490
316	sub write_runtime {	491	=item fork_call { }, $args
317	my $runtime = cf::localdir . "/runtime";
318		492
319	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	493	Executes the given code block with the given arguments in a seperate
320	or return;	494	process, returning the results. Everything must be serialisable with
		495	Coro::Storable. May, of course, block. Note that the executed sub may
		496	never block itself or use any form of Event handling.
321		497
322	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	498	=cut
323	(aio_write $fh, 0, (length $value), $value, 0) <= 0
324	and return;
325		499
326	aio_fsync $fh	500	sub fork_call(&@) {
327	and return;	501	my ($cb, @args) = @_;
328		502
329	close $fh	503	# we seemingly have to make a local copy of the whole thing,
330	or return;	504	# otherwise perl prematurely frees the stuff :/
		505	# TODO: investigate and fix (likely this will be rather laborious)
331		506
332	aio_rename "$runtime~", $runtime	507	my @res = Coro::Util::fork_eval {
333	and return;	508	reset_signals;
		509	&$cb
		510	}, @args;
334		511
		512	wantarray ? @res : $res[-1]
		513	}
		514
		515	=item $value = cf::db_get $family => $key
		516
		517	Returns a single value from the environment database.
		518
		519	=item cf::db_put $family => $key => $value
		520
		521	Stores the given C<$value> in the family. It can currently store binary
		522	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		523
		524	=item $db = cf::db_table "name"
		525
		526	Create and/or open a new database table. The string must not be "db" and must be unique
		527	within each server.
		528
		529	=cut
		530
		531	sub db_table($) {
		532	my ($name) = @_;
		533	my $db = BDB::db_create $DB_ENV;
		534
		535	eval {
		536	$db->set_flags (BDB::CHKSUM);
		537
		538	utf8::encode $name;
		539	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		540	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		541	cf::cleanup "db_open(db): $!" if $!;
		542	};
		543	cf::cleanup "db_open(db): $@" if $@;
		544
		545	$db
		546	}
		547
		548	our $DB;
		549
		550	sub db_init {
		551	cf::sync_job {
		552	$DB ||= db_table "db";
		553	};
		554	}
		555
		556	sub db_get($$) {
		557	my $key = "$_[0]/$_[1]";
		558
		559	cf::sync_job {
		560	BDB::db_get $DB, undef, $key, my $data;
		561
		562	$! ? ()
		563	: $data
335	1	564	}
		565	}
		566
		567	sub db_put($$$) {
		568	BDB::dbreq_pri 4;
		569	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		570	}
		571
		572	=item cf::cache $id => [$paths...], $processversion => $process
		573
		574	Generic caching function that returns the value of the resource $id,
		575	caching and regenerating as required.
		576
		577	This function can block.
		578
		579	=cut
		580
		581	sub cache {
		582	my ($id, $src, $processversion, $process) = @_;
		583
		584	my $meta =
		585	join "\x00",
		586	$processversion,
		587	map {
		588	aio_stat $_
		589	and Carp::croak "$_: $!";
		590
		591	($_, (stat _)[7,9])
		592	} @$src;
		593
		594	my $dbmeta = db_get cache => "$id/meta";
		595	if ($dbmeta ne $meta) {
		596	# changed, we may need to process
		597
		598	my @data;
		599	my $md5;
		600
		601	for (0 .. $#$src) {
		602	0 <= aio_load $src->[$_], $data[$_]
		603	or Carp::croak "$src->[$_]: $!";
		604	}
		605
		606	# if processing is expensive, check
		607	# checksum first
		608	if (1) {
		609	$md5 =
		610	join "\x00",
		611	$processversion,
		612	map {
		613	cf::cede_to_tick;
		614	($src->[$_], Digest::MD5::md5_hex $data[$_])
		615	} 0.. $#$src;
		616
		617
		618	my $dbmd5 = db_get cache => "$id/md5";
		619	if ($dbmd5 eq $md5) {
		620	db_put cache => "$id/meta", $meta;
		621
		622	return db_get cache => "$id/data";
		623	}
		624	}
		625
		626	my $t1 = Time::HiRes::time;
		627	my $data = $process->(\@data);
		628	my $t2 = Time::HiRes::time;
		629
		630	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		631
		632	db_put cache => "$id/data", $data;
		633	db_put cache => "$id/md5" , $md5;
		634	db_put cache => "$id/meta", $meta;
		635
		636	return $data;
		637	}
		638
		639	db_get cache => "$id/data"
		640	}
		641
		642	=item cf::datalog type => key => value, ...
		643
		644	Log a datalog packet of the given type with the given key-value pairs.
		645
		646	=cut
		647
		648	sub datalog($@) {
		649	my ($type, %kv) = @_;
		650	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
336	}	651	}
337		652
338	=back	653	=back
339		654
340	=cut	655	=cut
341
342	#############################################################################
343
344	package cf::path;
345
346	sub new {
347	my ($class, $path, $base) = @_;
348
349	$path = $path->as_string if ref $path;
350
351	my $self = bless { }, $class;
352
353	# {... are special paths that are not touched
354	# ?xxx/... are special absolute paths
355	# ?random/... random maps
356	# /! non-realised random map exit
357	# /... normal maps
358	# ~/... per-player maps without a specific player (DO NOT USE)
359	# ~user/... per-player map of a specific user
360
361	if ($path =~ /^{/) {
362	# fine as it is
363	} elsif ($path =~ s{^\?random/}{}) {
364	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
365	$self->{random} = cf::from_json $data;
366	} else {
367	if ($path =~ s{^~([^/]+)?}{}) {
368	$self->{user_rel} = 1;
369
370	if (defined $1) {
371	$self->{user} = $1;
372	} elsif ($base =~ m{^~([^/]+)/}) {
373	$self->{user} = $1;
374	} else {
375	warn "cannot resolve user-relative path without user <$path,$base>\n";
376	}
377	} elsif ($path =~ /^\//) {
378	# already absolute
379	} else {
380	$base =~ s{[^/]+/?$}{};
381	return $class->new ("$base/$path");
382	}
383
384	for ($path) {
385	redo if s{/\.?/}{/};
386	redo if s{/[^/]+/\.\./}{/};
387	}
388	}
389
390	$self->{path} = $path;
391
392	$self
393	}
394
395	# the name / primary key / in-game path
396	sub as_string {
397	my ($self) = @_;
398
399	$self->{user_rel} ? "~$self->{user}$self->{path}"
400	: $self->{random} ? "?random/$self->{path}"
401	: $self->{path}
402	}
403
404	# the displayed name, this is a one way mapping
405	sub visible_name {
406	my ($self) = @_;
407
408	# if (my $rmp = $self->{random}) {
409	# # todo: be more intelligent about this
410	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
411	# } else {
412	$self->as_string
413	# }
414	}
415
416	# escape the /'s in the path
417	sub _escaped_path {
418	# ∕ is U+2215
419	(my $path = $_[0]{path}) =~ s/\//∕/g;
420	$path
421	}
422
423	# the original (read-only) location
424	sub load_path {
425	my ($self) = @_;
426
427	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
428	}
429
430	# the temporary/swap location
431	sub save_path {
432	my ($self) = @_;
433
434	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
435	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
436	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
437	}
438
439	# the unique path, might be eq to save_path
440	sub uniq_path {
441	my ($self) = @_;
442
443	$self->{user_rel} || $self->{random}
444	? undef
445	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
446	}
447
448	# return random map parameters, or undef
449	sub random_map_params {
450	my ($self) = @_;
451
452	$self->{random}
453	}
454
455	# this is somewhat ugly, but style maps do need special treatment
456	sub is_style_map {
457	$_[0]{path} =~ m{^/styles/}
458	}
459
460	package cf;
461		656
462	#############################################################################	657	#############################################################################
463		658
464	=head2 ATTACHABLE OBJECTS	659	=head2 ATTACHABLE OBJECTS
465		660
…		…
467	attach callbacks/event handlers (a collection of which is called an "attachment")	662	attach callbacks/event handlers (a collection of which is called an "attachment")
468	to it. All such attachable objects support the following methods.	663	to it. All such attachable objects support the following methods.
469		664
470	In the following description, CLASS can be any of C<global>, C<object>	665	In the following description, CLASS can be any of C<global>, C<object>
471	C<player>, C<client> or C<map> (i.e. the attachable objects in	666	C<player>, C<client> or C<map> (i.e. the attachable objects in
472	crossfire+).	667	Deliantra).
473		668
474	=over 4	669	=over 4
475		670
476	=item $attachable->attach ($attachment, key => $value...)	671	=item $attachable->attach ($attachment, key => $value...)
477		672
…		…
591	our @CB_TYPE = (); # registry for type (cf-object class) based events	786	our @CB_TYPE = (); # registry for type (cf-object class) based events
592	our @CB_MAP = ();	787	our @CB_MAP = ();
593		788
594	my %attachment;	789	my %attachment;
595		790
		791	sub cf::attachable::thawer_merge {
		792	# simply override everything except _meta
		793	local $_[0]{_meta};
		794	%{$_[0]} = %{$_[1]};
		795	}
		796
596	sub _attach_cb($$$$) {	797	sub _attach_cb($$$$) {
597	my ($registry, $event, $prio, $cb) = @_;	798	my ($registry, $event, $prio, $cb) = @_;
598		799
599	use sort 'stable';	800	use sort 'stable';
600		801
…		…
634	$registry = $CB_TYPE[$object_type] ||= [];	835	$registry = $CB_TYPE[$object_type] ||= [];
635		836
636	} elsif ($type eq "subtype") {	837	} elsif ($type eq "subtype") {
637	defined $object_type or Carp::croak "subtype specified without type";	838	defined $object_type or Carp::croak "subtype specified without type";
638	my $object_subtype = shift @arg;	839	my $object_subtype = shift @arg;
639	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	840	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
640		841
641	} elsif ($type eq "package") {	842	} elsif ($type eq "package") {
642	my $pkg = shift @arg;	843	my $pkg = shift @arg;
643		844
644	while (my ($name, $id) = each %cb_id) {	845	while (my ($name, $id) = each %cb_id) {
…		…
673	_attach $registry, $klass, @attach;	874	_attach $registry, $klass, @attach;
674	}	875	}
675		876
676	$obj->{$name} = \%arg;	877	$obj->{$name} = \%arg;
677	} else {	878	} else {
678	warn "object uses attachment '$name' that is not available, postponing.\n";	879	warn "object uses attachment '$name' which is not available, postponing.\n";
679	}	880	}
680		881
681	$obj->{_attachment}{$name} = undef;	882	$obj->{_attachment}{$name} = undef;
682	}	883	}
683		884
…		…
685	if (ref $_[0]) {	886	if (ref $_[0]) {
686	_object_attach @_;	887	_object_attach @_;
687	} else {	888	} else {
688	_attach shift->_attach_registry, @_;	889	_attach shift->_attach_registry, @_;
689	}	890	}
		891	_recalc_want;
690	};	892	};
691		893
692	# all those should be optimised	894	# all those should be optimised
693	sub cf::attachable::detach {	895	sub cf::attachable::detach {
694	my ($obj, $name) = @_;	896	my ($obj, $name) = @_;
…		…
697	delete $obj->{_attachment}{$name};	899	delete $obj->{_attachment}{$name};
698	reattach ($obj);	900	reattach ($obj);
699	} else {	901	} else {
700	Carp::croak "cannot, currently, detach class attachments";	902	Carp::croak "cannot, currently, detach class attachments";
701	}	903	}
		904	_recalc_want;
702	};	905	};
703		906
704	sub cf::attachable::attached {	907	sub cf::attachable::attached {
705	my ($obj, $name) = @_;	908	my ($obj, $name) = @_;
706		909
…		…
721	";	924	";
722	die if $@;	925	die if $@;
723	}	926	}
724		927
725	our $override;	928	our $override;
726	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	929	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
727		930
728	sub override {	931	sub override {
729	$override = 1;	932	$override = 1;
730	@invoke_results = ();	933	@INVOKE_RESULTS = (@_);
731	}	934	}
732		935
733	sub do_invoke {	936	sub do_invoke {
734	my $event = shift;	937	my $event = shift;
735	my $callbacks = shift;	938	my $callbacks = shift;
736		939
737	@invoke_results = ();	940	@INVOKE_RESULTS = ();
738		941
739	local $override;	942	local $override;
740		943
741	for (@$callbacks) {	944	for (@$callbacks) {
742	eval { &{$_->[1]} };	945	eval { &{$_->[1]} };
…		…
759		962
760	Generate an object-specific event with the given arguments.	963	Generate an object-specific event with the given arguments.
761		964
762	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	965	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
763	removed in future versions), and there is no public API to access override	966	removed in future versions), and there is no public API to access override
764	results (if you must, access C<@cf::invoke_results> directly).	967	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
765		968
766	=back	969	=back
767		970
768	=cut	971	=cut
769		972
770	#############################################################################	973	#############################################################################
771	# object support	974	# object support
		975
		976	sub _object_equal($$);
		977	sub _object_equal($$) {
		978	my ($a, $b) = @_;
		979
		980	return 0 unless (ref $a) eq (ref $b);
		981
		982	if ("HASH" eq ref $a) {
		983	my @ka = keys %$a;
		984	my @kb = keys %$b;
		985
		986	return 0 if @ka != @kb;
		987
		988	for (0 .. $#ka) {
		989	return 0 unless $ka[$_] eq $kb[$_];
		990	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		991	}
		992
		993	} elsif ("ARRAY" eq ref $a) {
		994
		995	return 0 if @$a != @$b;
		996
		997	for (0 .. $#$a) {
		998	return 0 unless _object_equal $a->[$_], $b->[$_];
		999	}
		1000
		1001	} elsif ($a ne $b) {
		1002	return 0;
		1003	}
		1004
		1005	1
		1006	}
		1007
		1008	our $SLOW_MERGES;#d#
		1009	sub _can_merge {
		1010	my ($ob1, $ob2) = @_;
		1011
		1012	++$SLOW_MERGES;#d#
		1013
		1014	# we do the slow way here
		1015	return _object_equal $ob1, $ob2
		1016	}
772		1017
773	sub reattach {	1018	sub reattach {
774	# basically do the same as instantiate, without calling instantiate	1019	# basically do the same as instantiate, without calling instantiate
775	my ($obj) = @_;	1020	my ($obj) = @_;
		1021
		1022	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
776		1023
777	my $registry = $obj->registry;	1024	my $registry = $obj->registry;
778		1025
779	@$registry = ();	1026	@$registry = ();
780		1027
…		…
821	sub object_freezer_save {	1068	sub object_freezer_save {
822	my ($filename, $rdata, $objs) = @_;	1069	my ($filename, $rdata, $objs) = @_;
823		1070
824	sync_job {	1071	sync_job {
825	if (length $$rdata) {	1072	if (length $$rdata) {
		1073	utf8::decode (my $decname = $filename);
826	warn sprintf "saving %s (%d,%d)\n",	1074	warn sprintf "saving %s (%d,%d)\n",
827	$filename, length $$rdata, scalar @$objs;	1075	$decname, length $$rdata, scalar @$objs;
828		1076
829	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1077	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
830	chmod SAVE_MODE, $fh;	1078	chmod SAVE_MODE, $fh;
831	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1079	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
832	aio_fsync $fh;	1080	aio_fsync $fh if $cf::USE_FSYNC;
833	close $fh;	1081	close $fh;
834		1082
835	if (@$objs) {	1083	if (@$objs) {
836	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1084	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
837	chmod SAVE_MODE, $fh;	1085	chmod SAVE_MODE, $fh;
838	my $data = Storable::nfreeze { version => 1, objs => $objs };	1086	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
839	aio_write $fh, 0, (length $data), $data, 0;	1087	aio_write $fh, 0, (length $data), $data, 0;
840	aio_fsync $fh;	1088	aio_fsync $fh if $cf::USE_FSYNC;
841	close $fh;	1089	close $fh;
842	aio_rename "$filename.pst~", "$filename.pst";	1090	aio_rename "$filename.pst~", "$filename.pst";
843	}	1091	}
844	} else {	1092	} else {
845	aio_unlink "$filename.pst";	1093	aio_unlink "$filename.pst";
…		…
851	}	1099	}
852	} else {	1100	} else {
853	aio_unlink $filename;	1101	aio_unlink $filename;
854	aio_unlink "$filename.pst";	1102	aio_unlink "$filename.pst";
855	}	1103	}
856	}	1104	};
857	}	1105	}
858		1106
859	sub object_freezer_as_string {	1107	sub object_freezer_as_string {
860	my ($rdata, $objs) = @_;	1108	my ($rdata, $objs) = @_;
861		1109
…		…
873	or return;	1121	or return;
874		1122
875	unless (aio_stat "$filename.pst") {	1123	unless (aio_stat "$filename.pst") {
876	(aio_load "$filename.pst", $av) >= 0	1124	(aio_load "$filename.pst", $av) >= 0
877	or return;	1125	or return;
		1126
878	$av = eval { (Storable::thaw $av)->{objs} };	1127	my $st = eval { Coro::Storable::thaw $av };
		1128	$av = $st->{objs};
879	}	1129	}
880		1130
		1131	utf8::decode (my $decname = $filename);
881	warn sprintf "loading %s (%d)\n",	1132	warn sprintf "loading %s (%d,%d)\n",
882	$filename, length $data, scalar @{$av || []};#d#	1133	$decname, length $data, scalar @{$av || []};
		1134
883	return ($data, $av);	1135	($data, $av)
884	}	1136	}
		1137
		1138	=head2 COMMAND CALLBACKS
		1139
		1140	=over 4
		1141
		1142	=cut
885		1143
886	#############################################################################	1144	#############################################################################
887	# command handling &c	1145	# command handling &c
888		1146
889	=item cf::register_command $name => \&callback($ob,$args);	1147	=item cf::register_command $name => \&callback($ob,$args);
…		…
902	push @{ $COMMAND{$name} }, [$caller, $cb];	1160	push @{ $COMMAND{$name} }, [$caller, $cb];
903	}	1161	}
904		1162
905	=item cf::register_extcmd $name => \&callback($pl,$packet);	1163	=item cf::register_extcmd $name => \&callback($pl,$packet);
906		1164
907	Register a callbackf ro execution when the client sends an extcmd packet.	1165	Register a callback for execution when the client sends an (synchronous)
		1166	extcmd packet. Ext commands will be processed in the order they are
		1167	received by the server, like other user commands. The first argument is
		1168	the logged-in player. Ext commands can only be processed after a player
		1169	has logged in successfully.
908		1170
909	If the callback returns something, it is sent back as if reply was being	1171	If the callback returns something, it is sent back as if reply was being
910	called.	1172	called.
911		1173
		1174	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1175
		1176	Register a callback for execution when the client sends an (asynchronous)
		1177	exticmd packet. Exti commands are processed by the server as soon as they
		1178	are received, i.e. out of order w.r.t. other commands. The first argument
		1179	is a client socket. Exti commands can be received anytime, even before
		1180	log-in.
		1181
		1182	If the callback returns something, it is sent back as if reply was being
		1183	called.
		1184
912	=cut	1185	=cut
913		1186
914	sub register_extcmd {	1187	sub register_extcmd {
915	my ($name, $cb) = @_;	1188	my ($name, $cb) = @_;
916		1189
917	my $caller = caller;
918	#warn "registering extcmd '$name' to '$caller'";
919
920	$EXTCMD{$name} = [$cb, $caller];	1190	$EXTCMD{$name} = $cb;
		1191	}
		1192
		1193	sub register_exticmd {
		1194	my ($name, $cb) = @_;
		1195
		1196	$EXTICMD{$name} = $cb;
921	}	1197	}
922		1198
923	cf::player->attach (	1199	cf::player->attach (
924	on_command => sub {	1200	on_command => sub {
925	my ($pl, $name, $params) = @_;	1201	my ($pl, $name, $params) = @_;
…		…
934	cf::override;	1210	cf::override;
935	},	1211	},
936	on_extcmd => sub {	1212	on_extcmd => sub {
937	my ($pl, $buf) = @_;	1213	my ($pl, $buf) = @_;
938		1214
939	my $msg = eval { from_json $buf };	1215	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
940		1216
941	if (ref $msg) {	1217	if (ref $msg) {
		1218	my ($type, $reply, @payload) =
		1219	"ARRAY" eq ref $msg
		1220	? @$msg
		1221	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1222
		1223	my @reply;
		1224
942	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1225	if (my $cb = $EXTCMD{$type}) {
943	if (my %reply = $cb->[0]->($pl, $msg)) {	1226	@reply = $cb->($pl, @payload);
944	$pl->ext_reply ($msg->{msgid}, %reply);
945	}
946	}	1227	}
		1228
		1229	$pl->ext_reply ($reply, @reply)
		1230	if $reply;
		1231
947	} else {	1232	} else {
948	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1233	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
949	}	1234	}
950		1235
951	cf::override;	1236	cf::override;
952	},	1237	},
953	);	1238	);
954		1239
955	sub register {
956	my ($base, $pkg) = @_;
957
958	#TODO
959	}
960
961	sub load_extension {	1240	sub load_extensions {
		1241	cf::sync_job {
		1242	my %todo;
		1243
		1244	for my $path (<$LIBDIR/*.ext>) {
		1245	next unless -r $path;
		1246
		1247	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1248	my $base = $1;
		1249	my $pkg = $1;
		1250	$pkg =~ s/[^[:word:]]/_/g;
		1251	$pkg = "ext::$pkg";
		1252
		1253	open my $fh, "<:utf8", $path
		1254	or die "$path: $!";
		1255
		1256	my $source = do { local $/; <$fh> };
		1257
		1258	my %ext = (
		1259	path => $path,
		1260	base => $base,
		1261	pkg => $pkg,
		1262	);
		1263
		1264	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1265	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1266
		1267	$ext{source} =
		1268	"package $pkg; use strict; use utf8;\n"
		1269	. "#line 1 \"$path\"\n{\n"
		1270	. $source
		1271	. "\n};\n1";
		1272
		1273	$todo{$base} = \%ext;
		1274	}
		1275
		1276	my %done;
		1277	while (%todo) {
		1278	my $progress;
		1279
		1280	while (my ($k, $v) = each %todo) {
		1281	for (split /,\s*/, $v->{meta}{depends}) {
		1282	goto skip
		1283	unless exists $done{$_};
		1284	}
		1285
		1286	warn "... loading '$k' into '$v->{pkg}'\n";
		1287
		1288	unless (eval $v->{source}) {
		1289	my $msg = $@ ? "$v->{path}: $@\n"
		1290	: "$v->{base}: extension inactive.\n";
		1291
		1292	if (exists $v->{meta}{mandatory}) {
		1293	warn $msg;
		1294	warn "mandatory extension failed to load, exiting.\n";
		1295	exit 1;
		1296	}
		1297
		1298	warn $msg;
		1299	}
		1300
		1301	$done{$k} = delete $todo{$k};
		1302	push @EXTS, $v->{pkg};
		1303	$progress = 1;
		1304	}
		1305
		1306	skip:
		1307	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1308	unless $progress;
		1309	}
		1310	};
		1311	}
		1312
		1313	#############################################################################
		1314
		1315	=back
		1316
		1317	=head2 CORE EXTENSIONS
		1318
		1319	Functions and methods that extend core crossfire objects.
		1320
		1321	=cut
		1322
		1323	package cf::player;
		1324
		1325	use Coro::AIO;
		1326
		1327	=head3 cf::player
		1328
		1329	=over 4
		1330
		1331	=item cf::player::num_playing
		1332
		1333	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1334
		1335	=cut
		1336
		1337	sub num_playing {
		1338	scalar grep
		1339	$_->ob->map
		1340	&& !$_->hidden
		1341	&& !$_->ob->flag (cf::FLAG_WIZ),
		1342	cf::player::list
		1343	}
		1344
		1345	=item cf::player::find $login
		1346
		1347	Returns the given player object, loading it if necessary (might block).
		1348
		1349	=cut
		1350
		1351	sub playerdir($) {
		1352	"$PLAYERDIR/"
		1353	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1354	}
		1355
		1356	sub path($) {
		1357	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1358
		1359	(playerdir $login) . "/playerdata"
		1360	}
		1361
		1362	sub find_active($) {
		1363	$cf::PLAYER{$_[0]}
		1364	and $cf::PLAYER{$_[0]}->active
		1365	and $cf::PLAYER{$_[0]}
		1366	}
		1367
		1368	sub exists($) {
		1369	my ($login) = @_;
		1370
		1371	$cf::PLAYER{$login}
		1372	or cf::sync_job { !aio_stat path $login }
		1373	}
		1374
		1375	sub find($) {
		1376	return $cf::PLAYER{$_[0]} || do {
		1377	my $login = $_[0];
		1378
		1379	my $guard = cf::lock_acquire "user_find:$login";
		1380
		1381	$cf::PLAYER{$_[0]} || do {
		1382	# rename old playerfiles to new ones
		1383	#TODO: remove when no longer required
		1384	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1385	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1386	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1387	aio_unlink +(playerdir $login) . "/$login.pl";
		1388
		1389	my $f = new_from_file cf::object::thawer path $login
		1390	or return;
		1391
		1392	my $pl = cf::player::load_pl $f
		1393	or return;
		1394	local $cf::PLAYER_LOADING{$login} = $pl;
		1395	$f->resolve_delayed_derefs;
		1396	$cf::PLAYER{$login} = $pl
		1397	}
		1398	}
		1399	}
		1400
		1401	sub save($) {
		1402	my ($pl) = @_;
		1403
		1404	return if $pl->{deny_save};
		1405
		1406	my $path = path $pl;
		1407	my $guard = cf::lock_acquire "user_save:$path";
		1408
		1409	return if $pl->{deny_save};
		1410
		1411	aio_mkdir playerdir $pl, 0770;
		1412	$pl->{last_save} = $cf::RUNTIME;
		1413
		1414	$pl->save_pl ($path);
		1415	cf::cede_to_tick;
		1416	}
		1417
		1418	sub new($) {
		1419	my ($login) = @_;
		1420
		1421	my $self = create;
		1422
		1423	$self->ob->name ($login);
		1424	$self->{deny_save} = 1;
		1425
		1426	$cf::PLAYER{$login} = $self;
		1427
		1428	$self
		1429	}
		1430
		1431	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1432
		1433	=cut
		1434
		1435	sub send_msg {
		1436	my $ns = shift->ns
		1437	or return;
		1438	$ns->send_msg (@_);
		1439	}
		1440
		1441	=item $pl->quit_character
		1442
		1443	Nukes the player without looking back. If logged in, the connection will
		1444	be destroyed. May block for a long time.
		1445
		1446	=cut
		1447
		1448	sub quit_character {
		1449	my ($pl) = @_;
		1450
		1451	my $name = $pl->ob->name;
		1452
		1453	$pl->{deny_save} = 1;
		1454	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1455
		1456	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1457	$pl->deactivate;
		1458	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1459	$pl->ns->destroy if $pl->ns;
		1460
		1461	my $path = playerdir $pl;
		1462	my $temp = "$path~$cf::RUNTIME~deleting~";
		1463	aio_rename $path, $temp;
		1464	delete $cf::PLAYER{$pl->ob->name};
		1465	$pl->destroy;
		1466
		1467	my $prefix = qr<^~\Q$name\E/>;
		1468
		1469	# nuke player maps
		1470	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1471
		1472	IO::AIO::aio_rmtree $temp;
		1473	}
		1474
		1475	=item $pl->kick
		1476
		1477	Kicks a player out of the game. This destroys the connection.
		1478
		1479	=cut
		1480
		1481	sub kick {
		1482	my ($pl, $kicker) = @_;
		1483
		1484	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1485	$pl->killer ("kicked");
		1486	$pl->ns->destroy;
		1487	}
		1488
		1489	=item cf::player::list_logins
		1490
		1491	Returns am arrayref of all valid playernames in the system, can take a
		1492	while and may block, so not sync_job-capable, ever.
		1493
		1494	=cut
		1495
		1496	sub list_logins {
		1497	my $dirs = aio_readdir $PLAYERDIR
		1498	or return [];
		1499
		1500	my @logins;
		1501
		1502	for my $login (@$dirs) {
		1503	my $path = path $login;
		1504
		1505	# a .pst is a dead give-away for a valid player
		1506	unless (-e "$path.pst") {
		1507	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
		1508	aio_read $fh, 0, 512, my $buf, 0 or next;
		1509	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1510	}
		1511
		1512	utf8::decode $login;
		1513	push @logins, $login;
		1514	}
		1515
		1516	\@logins
		1517	}
		1518
		1519	=item $player->maps
		1520
		1521	Returns an arrayref of map paths that are private for this
		1522	player. May block.
		1523
		1524	=cut
		1525
		1526	sub maps($) {
		1527	my ($pl) = @_;
		1528
		1529	$pl = ref $pl ? $pl->ob->name : $pl;
		1530
		1531	my $files = aio_readdir playerdir $pl
		1532	or return;
		1533
		1534	my @paths;
		1535
		1536	for (@$files) {
		1537	utf8::decode $_;
		1538	next if /\.(?:pl|pst)$/;
		1539	next unless /^$PATH_SEP/o;
		1540
		1541	push @paths, cf::map::normalise "~$pl/$_";
		1542	}
		1543
		1544	\@paths
		1545	}
		1546
		1547	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1548
		1549	Expand crossfire pod fragments into protocol xml.
		1550
		1551	=cut
		1552
		1553	use re 'eval';
		1554
		1555	my $group;
		1556	my $interior; $interior = qr{
		1557	# match a pod interior sequence sans C<< >>
		1558	(?:
		1559	\ (.*?)\ (?{ $group = $^N })
		1560	| < (??{$interior}) >
		1561	)
		1562	}x;
		1563
		1564	sub expand_cfpod {
		1565	my ($self, $pod) = @_;
		1566
		1567	my $xml;
		1568
		1569	while () {
		1570	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1571	$group = $1;
		1572
		1573	$group =~ s/&/&amp;/g;
		1574	$group =~ s/</&lt;/g;
		1575
		1576	$xml .= $group;
		1577	} elsif ($pod =~ m%\G
		1578	([BCGHITU])
		1579	<
		1580	(?:
		1581	([^<>]*) (?{ $group = $^N })
		1582	| < $interior >
		1583	)
		1584	>
		1585	%gcsx
		1586	) {
		1587	my ($code, $data) = ($1, $group);
		1588
		1589	if ($code eq "B") {
		1590	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1591	} elsif ($code eq "I") {
		1592	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1593	} elsif ($code eq "U") {
		1594	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1595	} elsif ($code eq "C") {
		1596	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1597	} elsif ($code eq "T") {
		1598	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1599	} elsif ($code eq "G") {
		1600	my ($male, $female) = split /\|/, $data;
		1601	$data = $self->gender ? $female : $male;
		1602	$xml .= expand_cfpod ($self, $data);
		1603	} elsif ($code eq "H") {
		1604	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1605	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1606	"")
		1607	[$self->{hintmode}];
		1608	} else {
		1609	$xml .= "error processing '$code($data)' directive";
		1610	}
		1611	} else {
		1612	if ($pod =~ /\G(.+)/) {
		1613	warn "parse error while expanding $pod (at $1)";
		1614	}
		1615	last;
		1616	}
		1617	}
		1618
		1619	for ($xml) {
		1620	# create single paragraphs (very hackish)
		1621	s/(?<=\S)\n(?=\w)/ /g;
		1622
		1623	# compress some whitespace
		1624	s/\s+\n/\n/g; # ws line-ends
		1625	s/\n\n+/\n/g; # double lines
		1626	s/^\n+//; # beginning lines
		1627	s/\n+$//; # ending lines
		1628	}
		1629
		1630	$xml
		1631	}
		1632
		1633	no re 'eval';
		1634
		1635	sub hintmode {
		1636	$_[0]{hintmode} = $_[1] if @_ > 1;
		1637	$_[0]{hintmode}
		1638	}
		1639
		1640	=item $player->ext_reply ($msgid, @msg)
		1641
		1642	Sends an ext reply to the player.
		1643
		1644	=cut
		1645
		1646	sub ext_reply($$@) {
		1647	my ($self, $id, @msg) = @_;
		1648
		1649	$self->ns->ext_reply ($id, @msg)
		1650	}
		1651
		1652	=item $player->ext_msg ($type, @msg)
		1653
		1654	Sends an ext event to the client.
		1655
		1656	=cut
		1657
		1658	sub ext_msg($$@) {
		1659	my ($self, $type, @msg) = @_;
		1660
		1661	$self->ns->ext_msg ($type, @msg);
		1662	}
		1663
		1664	=head3 cf::region
		1665
		1666	=over 4
		1667
		1668	=cut
		1669
		1670	package cf::region;
		1671
		1672	=item cf::region::find_by_path $path
		1673
		1674	Tries to decuce the likely region for a map knowing only its path.
		1675
		1676	=cut
		1677
		1678	sub find_by_path($) {
962	my ($path) = @_;	1679	my ($path) = @_;
963		1680
964	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1681	my ($match, $specificity);
965	my $base = $1;
966	my $pkg = $1;
967	$pkg =~ s/[^[:word:]]/_/g;
968	$pkg = "ext::$pkg";
969		1682
970	warn "loading '$path' into '$pkg'\n";	1683	for my $region (list) {
971		1684	if ($region->{match} && $path =~ $region->{match}) {
972	open my $fh, "<:utf8", $path	1685	($match, $specificity) = ($region, $region->specificity)
973	or die "$path: $!";	1686	if $region->specificity > $specificity;
974		1687	}
975	my $source =
976	"package $pkg; use strict; use utf8;\n"
977	. "#line 1 \"$path\"\n{\n"
978	. (do { local $/; <$fh> })
979	. "\n};\n1";
980
981	eval $source
982	or die $@ ? "$path: $@\n"
983	: "extension disabled.\n";
984
985	push @exts, $pkg;
986	$ext_pkg{$base} = $pkg;
987
988	# no strict 'refs';
989	# @{"$pkg\::ISA"} = ext::;
990
991	register $base, $pkg;
992	}
993
994	sub unload_extension {
995	my ($pkg) = @_;
996
997	warn "removing extension $pkg\n";
998
999	# remove hooks
1000	#TODO
1001	# for my $idx (0 .. $#PLUGIN_EVENT) {
1002	# delete $hook[$idx]{$pkg};
1003	# }	1688	}
1004		1689
1005	# remove commands	1690	$match
1006	for my $name (keys %COMMAND) {
1007	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1008
1009	if (@cb) {
1010	$COMMAND{$name} = \@cb;
1011	} else {
1012	delete $COMMAND{$name};
1013	}
1014	}
1015
1016	# remove extcmds
1017	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1018	delete $EXTCMD{$name};
1019	}
1020
1021	if (my $cb = $pkg->can ("unload")) {
1022	eval {
1023	$cb->($pkg);
1024	1
1025	} or warn "$pkg unloaded, but with errors: $@";
1026	}
1027
1028	Symbol::delete_package $pkg;
1029	}
1030
1031	sub load_extensions {
1032	for my $ext (<$LIBDIR/*.ext>) {
1033	next unless -r $ext;
1034	eval {
1035	load_extension $ext;
1036	1
1037	} or warn "$ext not loaded: $@";
1038	}
1039	}
1040
1041	#############################################################################
1042	# load/save/clean perl data associated with a map
1043
1044	*cf::mapsupport::on_clean = sub {
1045	my ($map) = @_;
1046
1047	my $path = $map->tmpname;
1048	defined $path or return;
1049
1050	unlink "$path.pst";
1051	};
1052
1053	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1054
1055	#############################################################################
1056	# load/save perl data associated with player->ob objects
1057
1058	sub all_objects(@) {
1059	@_, map all_objects ($_->inv), @_
1060	}
1061
1062	# TODO: compatibility cruft, remove when no longer needed
1063	cf::player->attach (
1064	on_load => sub {
1065	my ($pl, $path) = @_;
1066
1067	for my $o (all_objects $pl->ob) {
1068	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1069	$o->set_ob_key_value ("_perl_data");
1070
1071	%$o = %{ Storable::thaw pack "H*", $value };
1072	}
1073	}
1074	},
1075	);
1076
1077	#############################################################################
1078
1079	=head2 CORE EXTENSIONS
1080
1081	Functions and methods that extend core crossfire objects.
1082
1083	=head3 cf::player
1084
1085	=over 4
1086
1087	=item cf::player::exists $login
1088
1089	Returns true when the given account exists.
1090
1091	=cut
1092
1093	sub cf::player::exists($) {
1094	cf::player::find $_[0]
1095	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1096	}
1097
1098	=item $player->ext_reply ($msgid, $msgtype, %msg)
1099
1100	Sends an ext reply to the player.
1101
1102	=cut
1103
1104	sub cf::player::ext_reply($$$%) {
1105	my ($self, $id, %msg) = @_;
1106
1107	$msg{msgid} = $id;
1108
1109	$self->send ("ext " . to_json \%msg);
1110	}	1691	}
1111		1692
1112	=back	1693	=back
1113
1114		1694
1115	=head3 cf::map	1695	=head3 cf::map
1116		1696
1117	=over 4	1697	=over 4
1118		1698
…		…
1121	package cf::map;	1701	package cf::map;
1122		1702
1123	use Fcntl;	1703	use Fcntl;
1124	use Coro::AIO;	1704	use Coro::AIO;
1125		1705
		1706	use overload
		1707	'""' => \&as_string,
		1708	fallback => 1;
		1709
1126	our $MAX_RESET = 3600;	1710	our $MAX_RESET = 3600;
1127	our $DEFAULT_RESET = 3000;	1711	our $DEFAULT_RESET = 3000;
1128		1712
1129	sub generate_random_map {	1713	sub generate_random_map {
1130	my ($path, $rmp) = @_;	1714	my ($self, $rmp) = @_;
1131
1132	# mit "rum" bekleckern, nicht	1715	# mit "rum" bekleckern, nicht
1133	cf::map::_create_random_map	1716	$self->_create_random_map (
1134	$path,
1135	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1717	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1136	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1718	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1137	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1719	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1138	$rmp->{exit_on_final_map},	1720	$rmp->{exit_on_final_map},
1139	$rmp->{xsize}, $rmp->{ysize},	1721	$rmp->{xsize}, $rmp->{ysize},
1140	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1722	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1141	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1723	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1142	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1724	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1143	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1725	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1144	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1726	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1145	(cf::region::find $rmp->{region})	1727	(cf::region::find $rmp->{region}), $rmp->{custom}
		1728	)
		1729	}
		1730
		1731	=item cf::map->register ($regex, $prio)
		1732
		1733	Register a handler for the map path matching the given regex at the
		1734	givne priority (higher is better, built-in handlers have priority 0, the
		1735	default).
		1736
		1737	=cut
		1738
		1739	sub register {
		1740	my (undef, $regex, $prio) = @_;
		1741	my $pkg = caller;
		1742
		1743	no strict;
		1744	push @{"$pkg\::ISA"}, __PACKAGE__;
		1745
		1746	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1747	}
		1748
		1749	# also paths starting with '/'
		1750	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1751
		1752	sub thawer_merge {
		1753	my ($self, $merge) = @_;
		1754
		1755	# we have to keep some variables in memory intact
		1756	local $self->{path};
		1757	local $self->{load_path};
		1758
		1759	$self->SUPER::thawer_merge ($merge);
		1760	}
		1761
		1762	sub normalise {
		1763	my ($path, $base) = @_;
		1764
		1765	$path = "$path"; # make sure its a string
		1766
		1767	$path =~ s/\.map$//;
		1768
		1769	# map plan:
		1770	#
		1771	# /! non-realised random map exit (special hack!)
		1772	# {... are special paths that are not being touched
		1773	# ?xxx/... are special absolute paths
		1774	# ?random/... random maps
		1775	# /... normal maps
		1776	# ~user/... per-player map of a specific user
		1777
		1778	$path =~ s/$PATH_SEP/\//go;
		1779
		1780	# treat it as relative path if it starts with
		1781	# something that looks reasonable
		1782	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1783	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1784
		1785	$base =~ s{[^/]+/?$}{};
		1786	$path = "$base/$path";
		1787	}
		1788
		1789	for ($path) {
		1790	redo if s{//}{/};
		1791	redo if s{/\.?/}{/};
		1792	redo if s{/[^/]+/\.\./}{/};
		1793	}
		1794
		1795	$path
		1796	}
		1797
		1798	sub new_from_path {
		1799	my (undef, $path, $base) = @_;
		1800
		1801	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1802
		1803	$path = normalise $path, $base;
		1804
		1805	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1806	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1807	my $self = bless cf::map::new, $pkg;
		1808	$self->{path} = $path; $self->path ($path);
		1809	$self->init; # pass $1 etc.
		1810	return $self;
		1811	}
		1812	}
		1813
		1814	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1815	()
		1816	}
		1817
		1818	sub init {
		1819	my ($self) = @_;
		1820
		1821	$self
		1822	}
		1823
		1824	sub as_string {
		1825	my ($self) = @_;
		1826
		1827	"$self->{path}"
		1828	}
		1829
		1830	# the displayed name, this is a one way mapping
		1831	sub visible_name {
		1832	&as_string
		1833	}
		1834
		1835	# the original (read-only) location
		1836	sub load_path {
		1837	my ($self) = @_;
		1838
		1839	"$MAPDIR/$self->{path}.map"
		1840	}
		1841
		1842	# the temporary/swap location
		1843	sub save_path {
		1844	my ($self) = @_;
		1845
		1846	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1847	"$TMPDIR/$path.map"
		1848	}
		1849
		1850	# the unique path, undef == no special unique path
		1851	sub uniq_path {
		1852	my ($self) = @_;
		1853
		1854	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1855	"$UNIQUEDIR/$path"
1146	}	1856	}
1147		1857
1148	# and all this just because we cannot iterate over	1858	# and all this just because we cannot iterate over
1149	# all maps in C++...	1859	# all maps in C++...
1150	sub change_all_map_light {	1860	sub change_all_map_light {
…		…
1152		1862
1153	$_->change_map_light ($change)	1863	$_->change_map_light ($change)
1154	for grep $_->outdoor, values %cf::MAP;	1864	for grep $_->outdoor, values %cf::MAP;
1155	}	1865	}
1156		1866
		1867	sub decay_objects {
		1868	my ($self) = @_;
		1869
		1870	return if $self->{deny_reset};
		1871
		1872	$self->do_decay_objects;
		1873	}
		1874
		1875	sub unlink_save {
		1876	my ($self) = @_;
		1877
		1878	utf8::encode (my $save = $self->save_path);
		1879	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1880	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1881	}
		1882
1157	sub try_load_header($) {	1883	sub load_header_from($) {
1158	my ($path) = @_;	1884	my ($self, $path) = @_;
1159		1885
1160	utf8::encode $path;	1886	utf8::encode $path;
1161	aio_open $path, O_RDONLY, 0	1887	my $f = new_from_file cf::object::thawer $path
1162	or return;	1888	or return;
1163		1889
1164	my $map = cf::map::new	1890	$self->_load_header ($f)
1165	or return;	1891	or return;
1166		1892
1167	# for better error messages only, will be overwritten	1893	local $MAP_LOADING{$self->{path}} = $self;
1168	$map->path ($path);	1894	$f->resolve_delayed_derefs;
1169		1895
1170	$map->load_header ($path)	1896	$self->{load_path} = $path;
		1897
		1898	1
		1899	}
		1900
		1901	sub load_header_orig {
		1902	my ($self) = @_;
		1903
		1904	$self->load_header_from ($self->load_path)
		1905	}
		1906
		1907	sub load_header_temp {
		1908	my ($self) = @_;
		1909
		1910	$self->load_header_from ($self->save_path)
		1911	}
		1912
		1913	sub prepare_temp {
		1914	my ($self) = @_;
		1915
		1916	$self->last_access ((delete $self->{last_access})
		1917	|| $cf::RUNTIME); #d#
		1918	# safety
		1919	$self->{instantiate_time} = $cf::RUNTIME
		1920	if $self->{instantiate_time} > $cf::RUNTIME;
		1921	}
		1922
		1923	sub prepare_orig {
		1924	my ($self) = @_;
		1925
		1926	$self->{load_original} = 1;
		1927	$self->{instantiate_time} = $cf::RUNTIME;
		1928	$self->last_access ($cf::RUNTIME);
		1929	$self->instantiate;
		1930	}
		1931
		1932	sub load_header {
		1933	my ($self) = @_;
		1934
		1935	if ($self->load_header_temp) {
		1936	$self->prepare_temp;
		1937	} else {
		1938	$self->load_header_orig
1171	or return;	1939	or return;
		1940	$self->prepare_orig;
		1941	}
1172		1942
1173	$map->{load_path} = $path;	1943	$self->{deny_reset} = 1
		1944	if $self->no_reset;
1174		1945
1175	$map	1946	$self->default_region (cf::region::find_by_path $self->{path})
		1947	unless $self->default_region;
		1948
		1949	1
1176	}	1950	}
1177		1951
1178	sub find;	1952	sub find;
1179	sub find {	1953	sub find {
1180	my ($path, $origin) = @_;	1954	my ($path, $origin) = @_;
1181		1955
1182	#warn "find<$path,$origin>\n";#d#
1183
1184	$path = new cf::path $path, $origin && $origin->path;	1956	$path = normalise $path, $origin && $origin->path;
1185	my $key = $path->as_string;
1186		1957
		1958	cf::lock_wait "map_data:$path";#d#remove
1187	cf::lock_wait "map_find:$key";	1959	cf::lock_wait "map_find:$path";
1188		1960
1189	$cf::MAP{$key} || do {	1961	$cf::MAP{$path} || do {
1190	my $guard = cf::lock_acquire "map_find:$key";	1962	my $guard1 = cf::lock_acquire "map_find:$path";
		1963	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1191		1964
1192	# do it the slow way	1965	my $map = new_from_path cf::map $path
1193	my $map = try_load_header $path->save_path;
1194
1195	Coro::cede;
1196
1197	if ($map) {
1198	$map->last_access ((delete $map->{last_access})
1199	|| $cf::RUNTIME); #d#
1200	# safety
1201	$map->{instantiate_time} = $cf::RUNTIME
1202	if $map->{instantiate_time} > $cf::RUNTIME;
1203	} else {
1204	if (my $rmp = $path->random_map_params) {
1205	$map = generate_random_map $key, $rmp;
1206	} else {
1207	$map = try_load_header $path->load_path;
1208	}
1209
1210	$map or return;	1966	or return;
1211		1967
1212	$map->{load_original} = 1;
1213	$map->{instantiate_time} = $cf::RUNTIME;
1214	$map->last_access ($cf::RUNTIME);
1215	$map->instantiate;
1216
1217	# per-player maps become, after loading, normal maps
1218	$map->per_player (0) if $path->{user_rel};
1219	}
1220
1221	$map->path ($key);
1222	$map->{path} = $path;
1223	$map->{last_save} = $cf::RUNTIME;	1968	$map->{last_save} = $cf::RUNTIME;
1224		1969
1225	Coro::cede;	1970	$map->load_header
		1971	or return;
1226		1972
1227	if ($map->should_reset) {	1973	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1974	# doing this can freeze the server in a sync job, obviously
		1975	#$cf::WAIT_FOR_TICK->wait;
		1976	undef $guard1;
		1977	undef $guard2;
1228	$map->reset;	1978	$map->reset;
1229	undef $guard;
1230	$map = find $path	1979	return find $path;
1231	or return;
1232	}	1980	}
1233		1981
1234	$cf::MAP{$key} = $map	1982	$cf::MAP{$path} = $map
1235	}	1983	}
1236	}	1984	}
		1985
		1986	sub pre_load { }
		1987	sub post_load { }
1237		1988
1238	sub load {	1989	sub load {
1239	my ($self) = @_;	1990	my ($self) = @_;
1240		1991
		1992	local $self->{deny_reset} = 1; # loading can take a long time
		1993
1241	my $path = $self->{path};	1994	my $path = $self->{path};
		1995
		1996	{
1242	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1997	my $guard = cf::lock_acquire "map_data:$path";
1243		1998
		1999	return unless $self->valid;
1244	return if $self->in_memory != cf::MAP_SWAPPED;	2000	return unless $self->in_memory == cf::MAP_SWAPPED;
1245		2001
1246	$self->in_memory (cf::MAP_LOADING);	2002	$self->in_memory (cf::MAP_LOADING);
1247		2003
1248	$self->alloc;	2004	$self->alloc;
1249	$self->load_objects ($self->{load_path}, 1)	2005
		2006	$self->pre_load;
		2007	cf::cede_to_tick;
		2008
		2009	my $f = new_from_file cf::object::thawer $self->{load_path};
		2010	$f->skip_block;
		2011	$self->_load_objects ($f)
1250	or return;	2012	or return;
1251		2013
1252	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2014	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1253	if delete $self->{load_original};	2015	if delete $self->{load_original};
1254		2016
1255	if (my $uniq = $path->uniq_path) {	2017	if (my $uniq = $self->uniq_path) {
1256	utf8::encode $uniq;	2018	utf8::encode $uniq;
1257	if (aio_open $uniq, O_RDONLY, 0) {	2019	unless (aio_stat $uniq) {
		2020	if (my $f = new_from_file cf::object::thawer $uniq) {
1258	$self->clear_unique_items;	2021	$self->clear_unique_items;
1259	$self->load_objects ($uniq, 0);	2022	$self->_load_objects ($f);
		2023	$f->resolve_delayed_derefs;
		2024	}
1260	}	2025	}
1261	}	2026	}
1262		2027
1263	Coro::cede;	2028	$f->resolve_delayed_derefs;
1264		2029
		2030	cf::cede_to_tick;
1265	# now do the right thing for maps	2031	# now do the right thing for maps
1266	$self->link_multipart_objects;	2032	$self->link_multipart_objects;
1267
1268	if ($self->{path}->is_style_map) {
1269	$self->{deny_save} = 1;
1270	$self->{deny_reset} = 1;
1271	} else {
1272	$self->fix_auto_apply;
1273	$self->decay_objects;
1274	$self->update_buttons;
1275	$self->set_darkness_map;
1276	$self->difficulty ($self->estimate_difficulty)	2033	$self->difficulty ($self->estimate_difficulty)
1277	unless $self->difficulty;	2034	unless $self->difficulty;
		2035	cf::cede_to_tick;
		2036
		2037	unless ($self->{deny_activate}) {
		2038	$self->decay_objects;
		2039	$self->fix_auto_apply;
		2040	$self->update_buttons;
		2041	cf::cede_to_tick;
		2042	$self->set_darkness_map;
		2043	cf::cede_to_tick;
1278	$self->activate;	2044	$self->activate;
1279	}	2045	}
1280		2046
1281	Coro::cede;	2047	$self->{last_save} = $cf::RUNTIME;
		2048	$self->last_access ($cf::RUNTIME);
1282		2049
1283	$self->in_memory (cf::MAP_IN_MEMORY);	2050	$self->in_memory (cf::MAP_IN_MEMORY);
		2051	}
		2052
		2053	$self->post_load;
		2054	}
		2055
		2056	sub customise_for {
		2057	my ($self, $ob) = @_;
		2058
		2059	return find "~" . $ob->name . "/" . $self->{path}
		2060	if $self->per_player;
		2061
		2062	# return find "?party/" . $ob->name . "/" . $self->{path}
		2063	# if $self->per_party;
		2064
		2065	$self
		2066	}
		2067
		2068	# find and load all maps in the 3x3 area around a map
		2069	sub load_neighbours {
		2070	my ($map) = @_;
		2071
		2072	my @neigh; # diagonal neighbours
		2073
		2074	for (0 .. 3) {
		2075	my $neigh = $map->tile_path ($_)
		2076	or next;
		2077	$neigh = find $neigh, $map
		2078	or next;
		2079	$neigh->load;
		2080
		2081	push @neigh,
		2082	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		2083	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		2084	}
		2085
		2086	for (grep defined $_->[0], @neigh) {
		2087	my ($path, $origin) = @$_;
		2088	my $neigh = find $path, $origin
		2089	or next;
		2090	$neigh->load;
		2091	}
1284	}	2092	}
1285		2093
1286	sub find_sync {	2094	sub find_sync {
1287	my ($path, $origin) = @_;	2095	my ($path, $origin) = @_;
1288		2096
1289	cf::sync_job { cf::map::find $path, $origin }	2097	cf::sync_job { find $path, $origin }
1290	}	2098	}
1291		2099
1292	sub do_load_sync {	2100	sub do_load_sync {
1293	my ($map) = @_;	2101	my ($map) = @_;
1294		2102
		2103	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2104	if $Coro::current == $Coro::main;
		2105
1295	cf::sync_job { $map->load };	2106	cf::sync_job { $map->load };
		2107	}
		2108
		2109	our %MAP_PREFETCH;
		2110	our $MAP_PREFETCHER = undef;
		2111
		2112	sub find_async {
		2113	my ($path, $origin, $load) = @_;
		2114
		2115	$path = normalise $path, $origin && $origin->{path};
		2116
		2117	if (my $map = $cf::MAP{$path}) {
		2118	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2119	}
		2120
		2121	$MAP_PREFETCH{$path} |= $load;
		2122
		2123	$MAP_PREFETCHER ||= cf::async {
		2124	$Coro::current->{desc} = "map prefetcher";
		2125
		2126	while (%MAP_PREFETCH) {
		2127	while (my ($k, $v) = each %MAP_PREFETCH) {
		2128	if (my $map = find $k) {
		2129	$map->load if $v;
		2130	}
		2131
		2132	delete $MAP_PREFETCH{$k};
		2133	}
		2134	}
		2135	undef $MAP_PREFETCHER;
		2136	};
		2137	$MAP_PREFETCHER->prio (6);
		2138
		2139	()
1296	}	2140	}
1297		2141
1298	sub save {	2142	sub save {
1299	my ($self) = @_;	2143	my ($self) = @_;
1300		2144
		2145	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2146
1301	$self->{last_save} = $cf::RUNTIME;	2147	$self->{last_save} = $cf::RUNTIME;
1302		2148
1303	return unless $self->dirty;	2149	return unless $self->dirty;
1304		2150
1305	my $save = $self->{path}->save_path; utf8::encode $save;	2151	my $save = $self->save_path; utf8::encode $save;
1306	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2152	my $uniq = $self->uniq_path; utf8::encode $uniq;
1307		2153
1308	$self->{load_path} = $save;	2154	$self->{load_path} = $save;
1309		2155
1310	return if $self->{deny_save};	2156	return if $self->{deny_save};
1311		2157
1312	local $self->{last_access} = $self->last_access;#d#	2158	local $self->{last_access} = $self->last_access;#d#
1313		2159
		2160	cf::async {
		2161	$Coro::current->{desc} = "map player save";
		2162	$_->contr->save for $self->players;
		2163	};
		2164
1314	if ($uniq) {	2165	if ($uniq) {
1315	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2166	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1316	$self->save_objects ($uniq, cf::IO_UNIQUES);	2167	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1317	} else {	2168	} else {
1318	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2169	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1319	}	2170	}
1320	}	2171	}
1321		2172
1322	sub swap_out {	2173	sub swap_out {
1323	my ($self) = @_;	2174	my ($self) = @_;
1324		2175
1325	# save first because save cedes	2176	# save first because save cedes
1326	$self->save;	2177	$self->save;
		2178
		2179	my $lock = cf::lock_acquire "map_data:$self->{path}";
1327		2180
1328	return if $self->players;	2181	return if $self->players;
1329	return if $self->in_memory != cf::MAP_IN_MEMORY;	2182	return if $self->in_memory != cf::MAP_IN_MEMORY;
1330	return if $self->{deny_save};	2183	return if $self->{deny_save};
1331		2184
		2185	$self->in_memory (cf::MAP_SWAPPED);
		2186
		2187	$self->deactivate;
		2188	$_->clear_links_to ($self) for values %cf::MAP;
1332	$self->clear;	2189	$self->clear;
1333	$self->in_memory (cf::MAP_SWAPPED);
1334	}	2190	}
1335		2191
1336	sub reset_at {	2192	sub reset_at {
1337	my ($self) = @_;	2193	my ($self) = @_;
1338		2194
1339	# TODO: safety, remove and allow resettable per-player maps	2195	# TODO: safety, remove and allow resettable per-player maps
1340	return 1e99 if $self->{path}{user_rel};
1341	return 1e99 if $self->{deny_reset};	2196	return 1e99 if $self->{deny_reset};
1342		2197
1343	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2198	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1344	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2199	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1345		2200
…		…
1350	my ($self) = @_;	2205	my ($self) = @_;
1351		2206
1352	$self->reset_at <= $cf::RUNTIME	2207	$self->reset_at <= $cf::RUNTIME
1353	}	2208	}
1354		2209
1355	sub unlink_save {
1356	my ($self) = @_;
1357
1358	utf8::encode (my $save = $self->{path}->save_path);
1359	aioreq_pri 3; IO::AIO::aio_unlink $save;
1360	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1361	}
1362
1363	sub rename {
1364	my ($self, $new_path) = @_;
1365
1366	$self->unlink_save;
1367
1368	delete $cf::MAP{$self->path};
1369	$self->{path} = new cf::path $new_path;
1370	$self->path ($self->{path}->as_string);
1371	$cf::MAP{$self->path} = $self;
1372
1373	$self->save;
1374	}
1375
1376	sub reset {	2210	sub reset {
1377	my ($self) = @_;	2211	my ($self) = @_;
1378		2212
		2213	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2214
1379	return if $self->players;	2215	return if $self->players;
1380	return if $self->{path}{user_rel};#d#
1381		2216
1382	warn "resetting map ", $self->path;#d#	2217	warn "resetting map ", $self->path;
		2218
		2219	$self->in_memory (cf::MAP_SWAPPED);
		2220
		2221	# need to save uniques path
		2222	unless ($self->{deny_save}) {
		2223	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2224
		2225	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2226	if $uniq;
		2227	}
1383		2228
1384	delete $cf::MAP{$self->path};	2229	delete $cf::MAP{$self->path};
1385		2230
		2231	$self->deactivate;
1386	$_->clear_links_to ($self) for values %cf::MAP;	2232	$_->clear_links_to ($self) for values %cf::MAP;
		2233	$self->clear;
1387		2234
1388	$self->unlink_save;	2235	$self->unlink_save;
1389	$self->destroy;	2236	$self->destroy;
1390	}	2237	}
1391		2238
1392	my $nuke_counter = "aaaa";	2239	my $nuke_counter = "aaaa";
1393		2240
1394	sub nuke {	2241	sub nuke {
1395	my ($self) = @_;	2242	my ($self) = @_;
1396		2243
		2244	{
		2245	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2246
		2247	delete $cf::MAP{$self->path};
		2248
		2249	$self->unlink_save;
		2250
		2251	bless $self, "cf::map";
		2252	delete $self->{deny_reset};
1397	$self->{deny_save} = 1;	2253	$self->{deny_save} = 1;
1398	$self->reset_timeout (1);	2254	$self->reset_timeout (1);
1399	$self->rename ("{nuke}/" . ($nuke_counter++));	2255	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2256
		2257	$cf::MAP{$self->path} = $self;
		2258	}
		2259
1400	$self->reset; # polite request, might not happen	2260	$self->reset; # polite request, might not happen
1401	}	2261	}
1402		2262
1403	sub customise_for {	2263	=item $maps = cf::map::tmp_maps
1404	my ($map, $ob) = @_;
1405		2264
1406	if ($map->per_player) {	2265	Returns an arrayref with all map paths of currently instantiated and saved
1407	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2266	maps. May block.
		2267
		2268	=cut
		2269
		2270	sub tmp_maps() {
1408	}	2271	[
1409		2272	map {
1410	$map	2273	utf8::decode $_;
		2274	/\.map$/
		2275	? normalise $_
		2276	: ()
		2277	} @{ aio_readdir $TMPDIR or [] }
		2278	]
1411	}	2279	}
1412		2280
1413	sub emergency_save {	2281	=item $maps = cf::map::random_maps
1414	my $freeze_guard = cf::freeze_mainloop;
1415		2282
1416	warn "enter emergency map save\n";	2283	Returns an arrayref with all map paths of currently instantiated and saved
		2284	random maps. May block.
1417		2285
1418	cf::sync_job {	2286	=cut
1419	warn "begin emergency map save\n";
1420	$_->save for values %cf::MAP;
1421	};
1422		2287
1423	warn "end emergency map save\n";	2288	sub random_maps() {
		2289	[
		2290	map {
		2291	utf8::decode $_;
		2292	/\.map$/
		2293	? normalise "?random/$_"
		2294	: ()
		2295	} @{ aio_readdir $RANDOMDIR or [] }
		2296	]
		2297	}
		2298
		2299	=item cf::map::unique_maps
		2300
		2301	Returns an arrayref of paths of all shared maps that have
		2302	instantiated unique items. May block.
		2303
		2304	=cut
		2305
		2306	sub unique_maps() {
		2307	[
		2308	map {
		2309	utf8::decode $_;
		2310	/\.map$/
		2311	? normalise $_
		2312	: ()
		2313	} @{ aio_readdir $UNIQUEDIR or [] }
		2314	]
1424	}	2315	}
1425		2316
1426	package cf;	2317	package cf;
1427		2318
1428	=back	2319	=back
1429		2320
		2321	=head3 cf::object
		2322
		2323	=cut
		2324
		2325	package cf::object;
		2326
		2327	=over 4
		2328
		2329	=item $ob->inv_recursive
		2330
		2331	Returns the inventory of the object _and_ their inventories, recursively.
		2332
		2333	=cut
		2334
		2335	sub inv_recursive_;
		2336	sub inv_recursive_ {
		2337	map { $_, inv_recursive_ $_->inv } @_
		2338	}
		2339
		2340	sub inv_recursive {
		2341	inv_recursive_ inv $_[0]
		2342	}
		2343
		2344	=item $ref = $ob->ref
		2345
		2346	creates and returns a persistent reference to an objetc that can be stored as a string.
		2347
		2348	=item $ob = cf::object::deref ($refstring)
		2349
		2350	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2351	even if the object actually exists. May block.
		2352
		2353	=cut
		2354
		2355	sub deref {
		2356	my ($ref) = @_;
		2357
		2358	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2359	my ($uuid, $name) = ($1, $2);
		2360	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2361	or return;
		2362	$pl->ob->uuid eq $uuid
		2363	or return;
		2364
		2365	$pl->ob
		2366	} else {
		2367	warn "$ref: cannot resolve object reference\n";
		2368	undef
		2369	}
		2370	}
		2371
		2372	package cf;
		2373
		2374	=back
1430		2375
1431	=head3 cf::object::player	2376	=head3 cf::object::player
1432		2377
1433	=over 4	2378	=over 4
1434		2379
…		…
1448		2393
1449	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2394	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1450		2395
1451	if ($self->{record_replies}) {	2396	if ($self->{record_replies}) {
1452	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2397	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2398
1453	} else {	2399	} else {
		2400	my $pl = $self->contr;
		2401
		2402	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2403	my $dialog = $pl->{npc_dialog};
		2404	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2405
		2406	} else {
1454	$msg = $npc->name . " says: $msg" if $npc;	2407	$msg = $npc->name . " says: $msg" if $npc;
1455	$self->message ($msg, $flags);	2408	$self->message ($msg, $flags);
		2409	}
1456	}	2410	}
		2411	}
		2412
		2413	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2414
		2415	=cut
		2416
		2417	sub cf::object::send_msg {
		2418	my $pl = shift->contr
		2419	or return;
		2420	$pl->send_msg (@_);
1457	}	2421	}
1458		2422
1459	=item $player_object->may ("access")	2423	=item $player_object->may ("access")
1460		2424
1461	Returns wether the given player is authorized to access resource "access"	2425	Returns wether the given player is authorized to access resource "access"
…		…
1474		2438
1475	=item $player_object->enter_link	2439	=item $player_object->enter_link
1476		2440
1477	Freezes the player and moves him/her to a special map (C<{link}>).	2441	Freezes the player and moves him/her to a special map (C<{link}>).
1478		2442
1479	The player should be reaosnably safe there for short amounts of time. You	2443	The player should be reasonably safe there for short amounts of time. You
1480	I<MUST> call C<leave_link> as soon as possible, though.	2444	I<MUST> call C<leave_link> as soon as possible, though.
1481		2445
		2446	Will never block.
		2447
1482	=item $player_object->leave_link ($map, $x, $y)	2448	=item $player_object->leave_link ($map, $x, $y)
1483		2449
1484	Moves the player out of the specila link map onto the given map. If the	2450	Moves the player out of the special C<{link}> map onto the specified
1485	map is not valid (or omitted), the player will be moved back to the	2451	map. If the map is not valid (or omitted), the player will be moved back
1486	location he/she was before the call to C<enter_link>, or, if that fails,	2452	to the location he/she was before the call to C<enter_link>, or, if that
1487	to the emergency map position.	2453	fails, to the emergency map position.
1488		2454
1489	Might block.	2455	Might block.
1490		2456
1491	=cut	2457	=cut
		2458
		2459	sub link_map {
		2460	unless ($LINK_MAP) {
		2461	$LINK_MAP = cf::map::find "{link}"
		2462	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2463	$LINK_MAP->load;
		2464	}
		2465
		2466	$LINK_MAP
		2467	}
1492		2468
1493	sub cf::object::player::enter_link {	2469	sub cf::object::player::enter_link {
1494	my ($self) = @_;	2470	my ($self) = @_;
1495		2471
1496	$self->deactivate_recursive;	2472	$self->deactivate_recursive;
1497		2473
1498	return if $self->map == $LINK_MAP;	2474	return if UNIVERSAL::isa $self->map, "ext::map_link";
1499		2475
1500	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2476	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1501	if $self->map;	2477	if $self->map && $self->map->{path} ne "{link}";
1502		2478
1503	$self->enter_map ($LINK_MAP, 20, 20);	2479	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1504	}	2480	}
1505		2481
1506	sub cf::object::player::leave_link {	2482	sub cf::object::player::leave_link {
1507	my ($self, $map, $x, $y) = @_;	2483	my ($self, $map, $x, $y) = @_;
		2484
		2485	return unless $self->contr->active;
1508		2486
1509	my $link_pos = delete $self->{_link_pos};	2487	my $link_pos = delete $self->{_link_pos};
1510		2488
1511	unless ($map) {	2489	unless ($map) {
1512	# restore original map position	2490	# restore original map position
…		…
1526	# use -1 or undef as default coordinates, not 0, 0	2504	# use -1 or undef as default coordinates, not 0, 0
1527	($x, $y) = ($map->enter_x, $map->enter_y)	2505	($x, $y) = ($map->enter_x, $map->enter_y)
1528	if $x <=0 && $y <= 0;	2506	if $x <=0 && $y <= 0;
1529		2507
1530	$map->load;	2508	$map->load;
		2509	$map->load_neighbours;
1531		2510
		2511	return unless $self->contr->active;
1532	$self->activate_recursive;	2512	$self->activate_recursive;
		2513
		2514	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1533	$self->enter_map ($map, $x, $y);	2515	$self->enter_map ($map, $x, $y);
1534	}	2516	}
1535		2517
1536	cf::player->attach (	2518	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1537	on_logout => sub {
1538	my ($pl) = @_;
1539		2519
1540	# abort map switching before logout	2520	Moves the player to the given map-path and coordinates by first freezing
1541	if ($pl->ob->{_link_pos}) {	2521	her, loading and preparing them map, calling the provided $check callback
1542	cf::sync_job {	2522	that has to return the map if sucecssful, and then unfreezes the player on
1543	$pl->ob->leave_link	2523	the new (success) or old (failed) map position. In either case, $done will
1544	};	2524	be called at the end of this process.
1545	}
1546	},
1547	on_login => sub {
1548	my ($pl) = @_;
1549		2525
1550	# try to abort aborted map switching on player login :)
1551	# should happen only on crashes
1552	if ($pl->ob->{_link_pos}) {
1553	$pl->ob->enter_link;
1554	cf::async {
1555	# we need this sleep as the login has a concurrent enter_exit running
1556	# and this sleep increases chances of the player not ending up in scorn
1557	Coro::Timer::sleep 1;
1558	$pl->ob->leave_link;
1559	};
1560	}
1561	},
1562	);
1563
1564	=item $player_object->goto ($path, $x, $y)
1565
1566	=cut	2526	=cut
		2527
		2528	our $GOTOGEN;
1567		2529
1568	sub cf::object::player::goto {	2530	sub cf::object::player::goto {
1569	my ($self, $path, $x, $y) = @_;	2531	my ($self, $path, $x, $y, $check, $done) = @_;
		2532
		2533	# do generation counting so two concurrent goto's will be executed in-order
		2534	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1570		2535
1571	$self->enter_link;	2536	$self->enter_link;
1572		2537
1573	(cf::async {	2538	(async {
1574	$path = new cf::path $path;	2539	$Coro::current->{desc} = "player::goto $path $x $y";
1575		2540
1576	my $map = cf::map::find $path->as_string;	2541	# *tag paths override both path and x|y
		2542	if ($path =~ /^\*(.*)$/) {
		2543	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2544	my $ob = $obs[rand @obs];
		2545
		2546	# see if we actually can go there
		2547	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2548	$ob = $obs[rand @obs];
		2549	} else {
		2550	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2551	}
		2552	# else put us there anyways for now #d#
		2553
		2554	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2555	} else {
		2556	($path, $x, $y) = (undef, undef, undef);
		2557	}
		2558	}
		2559
		2560	my $map = eval {
		2561	my $map = defined $path ? cf::map::find $path : undef;
		2562
		2563	if ($map) {
1577	$map = $map->customise_for ($self) if $map;	2564	$map = $map->customise_for ($self);
1578		2565	$map = $check->($map) if $check && $map;
1579	# warn "entering ", $map->path, " at ($x, $y)\n"	2566	} else {
1580	# if $map;
1581
1582	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2567	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2568	}
1583		2569
		2570	$map
		2571	};
		2572
		2573	if ($@) {
		2574	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2575	LOG llevError | logBacktrace, Carp::longmess $@;
		2576	}
		2577
		2578	if ($gen == $self->{_goto_generation}) {
		2579	delete $self->{_goto_generation};
1584	$self->leave_link ($map, $x, $y);	2580	$self->leave_link ($map, $x, $y);
		2581	}
		2582
		2583	$done->() if $done;
1585	})->prio (1);	2584	})->prio (1);
1586	}	2585	}
1587		2586
1588	=item $player_object->enter_exit ($exit_object)	2587	=item $player_object->enter_exit ($exit_object)
1589		2588
…		…
1591		2590
1592	sub parse_random_map_params {	2591	sub parse_random_map_params {
1593	my ($spec) = @_;	2592	my ($spec) = @_;
1594		2593
1595	my $rmp = { # defaults	2594	my $rmp = { # defaults
1596	xsize => 10,	2595	xsize => (cf::rndm 15, 40),
1597	ysize => 10,	2596	ysize => (cf::rndm 15, 40),
		2597	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2598	#layout => string,
1598	};	2599	};
1599		2600
1600	for (split /\n/, $spec) {	2601	for (split /\n/, $spec) {
1601	my ($k, $v) = split /\s+/, $_, 2;	2602	my ($k, $v) = split /\s+/, $_, 2;
1602		2603
…		…
1606	$rmp	2607	$rmp
1607	}	2608	}
1608		2609
1609	sub prepare_random_map {	2610	sub prepare_random_map {
1610	my ($exit) = @_;	2611	my ($exit) = @_;
		2612
		2613	my $guard = cf::lock_acquire "exit_prepare:$exit";
1611		2614
1612	# all this does is basically replace the /! path by	2615	# all this does is basically replace the /! path by
1613	# a new random map path (?random/...) with a seed	2616	# a new random map path (?random/...) with a seed
1614	# that depends on the exit object	2617	# that depends on the exit object
1615		2618
1616	my $rmp = parse_random_map_params $exit->msg;	2619	my $rmp = parse_random_map_params $exit->msg;
1617		2620
1618	if ($exit->map) {	2621	if ($exit->map) {
1619	$rmp->{region} = $exit->map->region_name;	2622	$rmp->{region} = $exit->region->name;
1620	$rmp->{origin_map} = $exit->map->path;	2623	$rmp->{origin_map} = $exit->map->path;
1621	$rmp->{origin_x} = $exit->x;	2624	$rmp->{origin_x} = $exit->x;
1622	$rmp->{origin_y} = $exit->y;	2625	$rmp->{origin_y} = $exit->y;
1623	}	2626	}
1624		2627
1625	$rmp->{random_seed} ||= $exit->random_seed;	2628	$rmp->{random_seed} ||= $exit->random_seed;
1626		2629
1627	my $data = cf::to_json $rmp;	2630	my $data = cf::to_json $rmp;
1628	my $md5 = Digest::MD5::md5_hex $data;	2631	my $md5 = Digest::MD5::md5_hex $data;
		2632	my $meta = "$RANDOMDIR/$md5.meta";
1629		2633
1630	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2634	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1631	aio_write $fh, 0, (length $data), $data, 0;	2635	aio_write $fh, 0, (length $data), $data, 0;
		2636	undef $fh;
		2637	aio_rename "$meta~", $meta;
1632		2638
1633	$exit->slaying ("?random/$md5");	2639	$exit->slaying ("?random/$md5");
1634	$exit->msg (undef);	2640	$exit->msg (undef);
1635	}	2641	}
1636	}	2642	}
…		…
1638	sub cf::object::player::enter_exit {	2644	sub cf::object::player::enter_exit {
1639	my ($self, $exit) = @_;	2645	my ($self, $exit) = @_;
1640		2646
1641	return unless $self->type == cf::PLAYER;	2647	return unless $self->type == cf::PLAYER;
1642		2648
		2649	if ($exit->slaying eq "/!") {
		2650	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2651	# the problem is that $exit might not survive long enough
		2652	# so it needs to be done right now, right here
		2653	cf::sync_job { prepare_random_map $exit };
		2654	}
		2655
		2656	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2657	my $hp = $exit->stats->hp;
		2658	my $sp = $exit->stats->sp;
		2659
1643	$self->enter_link;	2660	$self->enter_link;
1644		2661
		2662	# if exit is damned, update players death & WoR home-position
		2663	$self->contr->savebed ($slaying, $hp, $sp)
		2664	if $exit->flag (FLAG_DAMNED);
		2665
1645	(cf::async {	2666	(async {
		2667	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2668
1646	$self->deactivate_recursive; # just to be sure	2669	$self->deactivate_recursive; # just to be sure
1647	unless (eval {	2670	unless (eval {
1648	prepare_random_map $exit	2671	$self->goto ($slaying, $hp, $sp);
1649	if $exit->slaying eq "/!";
1650
1651	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1652	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1653		2672
1654	1;	2673	1;
1655	}) {	2674	}) {
1656	$self->message ("Something went wrong deep within the crossfire server. "	2675	$self->message ("Something went wrong deep within the crossfire server. "
1657	. "I'll try to bring you back to the map you were before. "	2676	. "I'll try to bring you back to the map you were before. "
1658	. "Please report this to the dungeon master",	2677	. "Please report this to the dungeon master!",
1659	cf::NDI_UNIQUE | cf::NDI_RED);	2678	cf::NDI_UNIQUE | cf::NDI_RED);
1660		2679
1661	warn "ERROR in enter_exit: $@";	2680	warn "ERROR in enter_exit: $@";
1662	$self->leave_link;	2681	$self->leave_link;
1663	}	2682	}
1664	})->prio (1);	2683	})->prio (1);
…		…
1677		2696
1678	sub cf::client::send_drawinfo {	2697	sub cf::client::send_drawinfo {
1679	my ($self, $text, $flags) = @_;	2698	my ($self, $text, $flags) = @_;
1680		2699
1681	utf8::encode $text;	2700	utf8::encode $text;
1682	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2701	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1683	}	2702	}
1684		2703
		2704	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2705
		2706	Send a drawinfo or msg packet to the client, formatting the msg for the
		2707	client if neccessary. C<$type> should be a string identifying the type of
		2708	the message, with C<log> being the default. If C<$color> is negative, suppress
		2709	the message unless the client supports the msg packet.
		2710
		2711	=cut
		2712
		2713	# non-persistent channels (usually the info channel)
		2714	our %CHANNEL = (
		2715	"c/identify" => {
		2716	id => "infobox",
		2717	title => "Identify",
		2718	reply => undef,
		2719	tooltip => "Items recently identified",
		2720	},
		2721	"c/examine" => {
		2722	id => "infobox",
		2723	title => "Examine",
		2724	reply => undef,
		2725	tooltip => "Signs and other items you examined",
		2726	},
		2727	"c/book" => {
		2728	id => "infobox",
		2729	title => "Book",
		2730	reply => undef,
		2731	tooltip => "The contents of a note or book",
		2732	},
		2733	"c/lookat" => {
		2734	id => "infobox",
		2735	title => "Look",
		2736	reply => undef,
		2737	tooltip => "What you saw there",
		2738	},
		2739	"c/who" => {
		2740	id => "infobox",
		2741	title => "Players",
		2742	reply => undef,
		2743	tooltip => "Shows players who are currently online",
		2744	},
		2745	"c/body" => {
		2746	id => "infobox",
		2747	title => "Body Parts",
		2748	reply => undef,
		2749	tooltip => "Shows which body parts you posess and are available",
		2750	},
		2751	"c/uptime" => {
		2752	id => "infobox",
		2753	title => "Uptime",
		2754	reply => undef,
		2755	tooltip => "How long the server has been running since last restart",
		2756	},
		2757	"c/mapinfo" => {
		2758	id => "infobox",
		2759	title => "Map Info",
		2760	reply => undef,
		2761	tooltip => "Information related to the maps",
		2762	},
		2763	);
		2764
		2765	sub cf::client::send_msg {
		2766	my ($self, $channel, $msg, $color, @extra) = @_;
		2767
		2768	$msg = $self->pl->expand_cfpod ($msg);
		2769
		2770	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2771
		2772	# check predefined channels, for the benefit of C
		2773	if ($CHANNEL{$channel}) {
		2774	$channel = $CHANNEL{$channel};
		2775
		2776	$self->ext_msg (channel_info => $channel)
		2777	if $self->can_msg;
		2778
		2779	$channel = $channel->{id};
		2780
		2781	} elsif (ref $channel) {
		2782	# send meta info to client, if not yet sent
		2783	unless (exists $self->{channel}{$channel->{id}}) {
		2784	$self->{channel}{$channel->{id}} = $channel;
		2785	$self->ext_msg (channel_info => $channel)
		2786	if $self->can_msg;
		2787	}
		2788
		2789	$channel = $channel->{id};
		2790	}
		2791
		2792	return unless @extra || length $msg;
		2793
		2794	if ($self->can_msg) {
		2795	# default colour, mask it out
		2796	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2797	if $color & cf::NDI_DEF;
		2798
		2799	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2800	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2801	} else {
		2802	if ($color >= 0) {
		2803	# replace some tags by gcfclient-compatible ones
		2804	for ($msg) {
		2805	1 while
		2806	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2807	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2808	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2809	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2810	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2811	}
		2812
		2813	$color &= cf::NDI_COLOR_MASK;
		2814
		2815	utf8::encode $msg;
		2816
		2817	if (0 && $msg =~ /\[/) {
		2818	# COMMAND/INFO
		2819	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2820	} else {
		2821	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2822	$self->send_packet ("drawinfo $color $msg")
		2823	}
		2824	}
		2825	}
		2826	}
		2827
		2828	=item $client->ext_msg ($type, @msg)
		2829
		2830	Sends an ext event to the client.
		2831
		2832	=cut
		2833
		2834	sub cf::client::ext_msg($$@) {
		2835	my ($self, $type, @msg) = @_;
		2836
		2837	if ($self->extcmd == 2) {
		2838	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2839	} elsif ($self->extcmd == 1) { # TODO: remove
		2840	push @msg, msgtype => "event_$type";
		2841	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2842	}
		2843	}
		2844
		2845	=item $client->ext_reply ($msgid, @msg)
		2846
		2847	Sends an ext reply to the client.
		2848
		2849	=cut
		2850
		2851	sub cf::client::ext_reply($$@) {
		2852	my ($self, $id, @msg) = @_;
		2853
		2854	if ($self->extcmd == 2) {
		2855	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2856	} elsif ($self->extcmd == 1) {
		2857	#TODO: version 1, remove
		2858	unshift @msg, msgtype => "reply", msgid => $id;
		2859	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2860	}
		2861	}
1685		2862
1686	=item $success = $client->query ($flags, "text", \&cb)	2863	=item $success = $client->query ($flags, "text", \&cb)
1687		2864
1688	Queues a query to the client, calling the given callback with	2865	Queues a query to the client, calling the given callback with
1689	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2866	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1690	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2867	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1691		2868
1692	Queries can fail, so check the return code. Or don't, as queries will become	2869	Queries can fail, so check the return code. Or don't, as queries will
1693	reliable at some point in the future.	2870	become reliable at some point in the future.
1694		2871
1695	=cut	2872	=cut
1696		2873
1697	sub cf::client::query {	2874	sub cf::client::query {
1698	my ($self, $flags, $text, $cb) = @_;	2875	my ($self, $flags, $text, $cb) = @_;
…		…
1706	utf8::encode $text;	2883	utf8::encode $text;
1707	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2884	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1708		2885
1709	$self->send_packet ($self->{query_queue}[0][0])	2886	$self->send_packet ($self->{query_queue}[0][0])
1710	if @{ $self->{query_queue} } == 1;	2887	if @{ $self->{query_queue} } == 1;
		2888
		2889	1
1711	}	2890	}
1712		2891
1713	cf::client->attach (	2892	cf::client->attach (
		2893	on_connect => sub {
		2894	my ($ns) = @_;
		2895
		2896	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2897	},
1714	on_reply => sub {	2898	on_reply => sub {
1715	my ($ns, $msg) = @_;	2899	my ($ns, $msg) = @_;
1716		2900
1717	# this weird shuffling is so that direct followup queries	2901	# this weird shuffling is so that direct followup queries
1718	# get handled first	2902	# get handled first
1719	my $queue = delete $ns->{query_queue}	2903	my $queue = delete $ns->{query_queue}
1720	or return; # be conservative, not sure how that can happen, but we saw a crash here	2904	or return; # be conservative, not sure how that can happen, but we saw a crash here
1721		2905
1722	(shift @$queue)->[1]->($msg);	2906	(shift @$queue)->[1]->($msg);
		2907	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1723		2908
1724	push @{ $ns->{query_queue} }, @$queue;	2909	push @{ $ns->{query_queue} }, @$queue;
1725		2910
1726	if (@{ $ns->{query_queue} } == @$queue) {	2911	if (@{ $ns->{query_queue} } == @$queue) {
1727	if (@$queue) {	2912	if (@$queue) {
…		…
1729	} else {	2914	} else {
1730	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2915	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1731	}	2916	}
1732	}	2917	}
1733	},	2918	},
		2919	on_exticmd => sub {
		2920	my ($ns, $buf) = @_;
		2921
		2922	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2923
		2924	if (ref $msg) {
		2925	my ($type, $reply, @payload) =
		2926	"ARRAY" eq ref $msg
		2927	? @$msg
		2928	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2929
		2930	my @reply;
		2931
		2932	if (my $cb = $EXTICMD{$type}) {
		2933	@reply = $cb->($ns, @payload);
		2934	}
		2935
		2936	$ns->ext_reply ($reply, @reply)
		2937	if $reply;
		2938
		2939	} else {
		2940	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2941	}
		2942
		2943	cf::override;
		2944	},
1734	);	2945	);
1735		2946
1736	=item $client->coro (\&cb)	2947	=item $client->async (\&cb)
1737		2948
1738	Create a new coroutine, running the specified callback. The coroutine will	2949	Create a new coroutine, running the specified callback. The coroutine will
1739	be automatically cancelled when the client gets destroyed (e.g. on logout,	2950	be automatically cancelled when the client gets destroyed (e.g. on logout,
1740	or loss of connection).	2951	or loss of connection).
1741		2952
1742	=cut	2953	=cut
1743		2954
1744	sub cf::client::coro {	2955	sub cf::client::async {
1745	my ($self, $cb) = @_;	2956	my ($self, $cb) = @_;
1746		2957
1747	my $coro = &cf::async ($cb);	2958	my $coro = &Coro::async ($cb);
1748		2959
1749	$coro->on_destroy (sub {	2960	$coro->on_destroy (sub {
1750	delete $self->{_coro}{$coro+0};	2961	delete $self->{_coro}{$coro+0};
1751	});	2962	});
1752		2963
…		…
1779	our $safe = new Safe "safe";	2990	our $safe = new Safe "safe";
1780	our $safe_hole = new Safe::Hole;	2991	our $safe_hole = new Safe::Hole;
1781		2992
1782	$SIG{FPE} = 'IGNORE';	2993	$SIG{FPE} = 'IGNORE';
1783		2994
1784	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2995	$safe->permit_only (Opcode::opset qw(
		2996	:base_core :base_mem :base_orig :base_math
		2997	grepstart grepwhile mapstart mapwhile
		2998	sort time
		2999	));
1785		3000
1786	# here we export the classes and methods available to script code	3001	# here we export the classes and methods available to script code
1787		3002
1788	=pod	3003	=pod
1789		3004
1790	The following fucntions and emthods are available within a safe environment:	3005	The following functions and methods are available within a safe environment:
1791		3006
1792	cf::object contr pay_amount pay_player map	3007	cf::object
		3008	contr pay_amount pay_player map x y force_find force_add destroy
		3009	insert remove name archname title slaying race decrease_ob_nr
		3010
1793	cf::object::player player	3011	cf::object::player
1794	cf::player peaceful	3012	player
1795	cf::map trigger	3013
		3014	cf::player
		3015	peaceful
		3016
		3017	cf::map
		3018	trigger
1796		3019
1797	=cut	3020	=cut
1798		3021
1799	for (	3022	for (
1800	["cf::object" => qw(contr pay_amount pay_player map)],	3023	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3024	insert remove inv name archname title slaying race
		3025	decrease_ob_nr destroy)],
1801	["cf::object::player" => qw(player)],	3026	["cf::object::player" => qw(player)],
1802	["cf::player" => qw(peaceful)],	3027	["cf::player" => qw(peaceful)],
1803	["cf::map" => qw(trigger)],	3028	["cf::map" => qw(trigger)],
1804	) {	3029	) {
1805	no strict 'refs';	3030	no strict 'refs';
…		…
1876	=back	3101	=back
1877		3102
1878	=cut	3103	=cut
1879		3104
1880	#############################################################################	3105	#############################################################################
		3106	# the server's init and main functions
1881		3107
1882	=head2 EXTENSION DATABASE SUPPORT	3108	sub load_facedata($) {
		3109	my ($path) = @_;
1883		3110
1884	Crossfire maintains a very simple database for extension use. It can	3111	# HACK to clear player env face cache, we need some signal framework
1885	currently store anything that can be serialised using Storable, which	3112	# for this (global event?)
1886	excludes objects.	3113	%ext::player_env::MUSIC_FACE_CACHE = ();
1887		3114
1888	The parameter C<$family> should best start with the name of the extension	3115	my $enc = JSON::XS->new->utf8->canonical->relaxed;
1889	using it, it should be unique.
1890		3116
1891	=over 4	3117	warn "loading facedata from $path\n";
1892		3118
1893	=item $hashref = cf::db_get $family	3119	my $facedata;
		3120	0 < aio_load $path, $facedata
		3121	or die "$path: $!";
1894		3122
1895	Return a hashref for use by the extension C<$family>, which can be	3123	$facedata = Coro::Storable::thaw $facedata;
1896	modified. After modifications, you have to call C<cf::db_dirty> or
1897	C<cf::db_sync>.
1898		3124
1899	=item $value = cf::db_get $family => $key	3125	$facedata->{version} == 2
		3126	or cf::cleanup "$path: version mismatch, cannot proceed.";
1900		3127
1901	Returns a single value from the database	3128	# patch in the exptable
1902		3129	$facedata->{resource}{"res/exp_table"} = {
1903	=item cf::db_put $family => $hashref	3130	type => FT_RSRC,
1904		3131	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
1905	Stores the given family hashref into the database. Updates are delayed, if
1906	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1907
1908	=item cf::db_put $family => $key => $value
1909
1910	Stores the given C<$value> in the family hash. Updates are delayed, if you
1911	want the data to be synced to disk immediately, use C<cf::db_sync>.
1912
1913	=item cf::db_dirty
1914
1915	Marks the database as dirty, to be updated at a later time.
1916
1917	=item cf::db_sync
1918
1919	Immediately write the database to disk I<if it is dirty>.
1920
1921	=cut
1922
1923	our $DB;
1924
1925	{
1926	my $path = cf::localdir . "/database.pst";
1927
1928	sub db_load() {
1929	$DB = stat $path ? Storable::retrieve $path : { };
1930	}
1931
1932	my $pid;
1933
1934	sub db_save() {
1935	waitpid $pid, 0 if $pid;
1936	if (0 == ($pid = fork)) {
1937	$DB->{_meta}{version} = 1;
1938	Storable::nstore $DB, "$path~";
1939	rename "$path~", $path;
1940	cf::_exit 0 if defined $pid;
1941	}
1942	}
1943
1944	my $dirty;
1945
1946	sub db_sync() {
1947	db_save if $dirty;
1948	undef $dirty;
1949	}
1950
1951	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1952	db_sync;
1953	});	3132	};
		3133	cf::cede_to_tick;
1954		3134
1955	sub db_dirty() {
1956	$dirty = 1;
1957	$idle->start;
1958	}	3135	{
		3136	my $faces = $facedata->{faceinfo};
1959		3137
1960	sub db_get($;$) {	3138	while (my ($face, $info) = each %$faces) {
1961	@_ >= 2	3139	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1962	? $DB->{$_[0]}{$_[1]}	3140	cf::face::set_visibility $idx, $info->{visibility};
1963	: ($DB->{$_[0]} ||= { })	3141	cf::face::set_magicmap $idx, $info->{magicmap};
1964	}	3142	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		3143	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1965		3144
1966	sub db_put($$;$) {	3145	cf::cede_to_tick;
1967	if (@_ >= 3) {
1968	$DB->{$_[0]}{$_[1]} = $_[2];
1969	} else {
1970	$DB->{$_[0]} = $_[1];
1971	}
1972	db_dirty;
1973	}
1974
1975	cf::global->attach (
1976	prio => 10000,
1977	on_cleanup => sub {
1978	db_sync;
1979	},	3146	}
1980	);
1981	}
1982		3147
1983	#############################################################################	3148	while (my ($face, $info) = each %$faces) {
1984	# the server's main()	3149	next unless $info->{smooth};
		3150	my $idx = cf::face::find $face
		3151	or next;
		3152	if (my $smooth = cf::face::find $info->{smooth}) {
		3153	cf::face::set_smooth $idx, $smooth;
		3154	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3155	} else {
		3156	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3157	}
1985		3158
1986	sub cfg_load {	3159	cf::cede_to_tick;
		3160	}
		3161	}
		3162
		3163	{
		3164	my $anims = $facedata->{animinfo};
		3165
		3166	while (my ($anim, $info) = each %$anims) {
		3167	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3168	cf::cede_to_tick;
		3169	}
		3170
		3171	cf::anim::invalidate_all; # d'oh
		3172	}
		3173
		3174	{
		3175	# TODO: for gcfclient pleasure, we should give resources
		3176	# that gcfclient doesn't grok a >10000 face index.
		3177	my $res = $facedata->{resource};
		3178
		3179	my $soundconf = delete $res->{"res/sound.conf"};
		3180
		3181	while (my ($name, $info) = each %$res) {
		3182	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3183	my $data;
		3184
		3185	if ($info->{type} & 1) {
		3186	# prepend meta info
		3187
		3188	my $meta = $enc->encode ({
		3189	name => $name,
		3190	%{ $info->{meta} || {} },
		3191	});
		3192
		3193	$data = pack "(w/a*)*", $meta, $info->{data};
		3194	} else {
		3195	$data = $info->{data};
		3196	}
		3197
		3198	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3199	cf::face::set_type $idx, $info->{type};
		3200
		3201	cf::cede_to_tick;
		3202	}
		3203
		3204	if ($soundconf) {
		3205	$soundconf = $enc->decode (delete $soundconf->{data});
		3206
		3207	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3208	my $sound = $soundconf->{compat}[$_]
		3209	or next;
		3210
		3211	my $face = cf::face::find "sound/$sound->[1]";
		3212	cf::sound::set $sound->[0] => $face;
		3213	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3214	}
		3215
		3216	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3217	my $face = cf::face::find "sound/$v";
		3218	cf::sound::set $k => $face;
		3219	}
		3220	}
		3221	}
		3222
		3223	1
		3224	}
		3225
		3226	register_exticmd fx_want => sub {
		3227	my ($ns, $want) = @_;
		3228
		3229	while (my ($k, $v) = each %$want) {
		3230	$ns->fx_want ($k, $v);
		3231	}
		3232	};
		3233
		3234	sub reload_regions {
		3235	# HACK to clear player env face cache, we need some signal framework
		3236	# for this (global event?)
		3237	%ext::player_env::MUSIC_FACE_CACHE = ();
		3238
		3239	load_resource_file "$MAPDIR/regions"
		3240	or die "unable to load regions file\n";
		3241
		3242	for (cf::region::list) {
		3243	$_->{match} = qr/$_->{match}/
		3244	if exists $_->{match};
		3245	}
		3246	}
		3247
		3248	sub reload_facedata {
		3249	load_facedata "$DATADIR/facedata"
		3250	or die "unable to load facedata\n";
		3251	}
		3252
		3253	sub reload_archetypes {
		3254	load_resource_file "$DATADIR/archetypes"
		3255	or die "unable to load archetypes\n";
		3256	#d# NEED to laod twice to resolve forward references
		3257	# this really needs to be done in an extra post-pass
		3258	# (which needs to be synchronous, so solve it differently)
		3259	load_resource_file "$DATADIR/archetypes"
		3260	or die "unable to load archetypes\n";
		3261	}
		3262
		3263	sub reload_treasures {
		3264	load_resource_file "$DATADIR/treasures"
		3265	or die "unable to load treasurelists\n";
		3266	}
		3267
		3268	sub reload_resources {
		3269	warn "reloading resource files...\n";
		3270
		3271	reload_regions;
		3272	reload_facedata;
		3273	#reload_archetypes;#d#
		3274	reload_archetypes;
		3275	reload_treasures;
		3276
		3277	warn "finished reloading resource files\n";
		3278	}
		3279
		3280	sub init {
		3281	reload_resources;
		3282	}
		3283
		3284	sub reload_config {
1987	open my $fh, "<:utf8", cf::confdir . "/config"	3285	open my $fh, "<:utf8", "$CONFDIR/config"
1988	or return;	3286	or return;
1989		3287
1990	local $/;	3288	local $/;
1991	*CFG = YAML::Syck::Load <$fh>;	3289	*CFG = YAML::Syck::Load <$fh>;
1992		3290
1993	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	3291	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1994		3292
		3293	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		3294	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		3295
1995	if (exists $CFG{mlockall}) {	3296	if (exists $CFG{mlockall}) {
1996	eval {	3297	eval {
1997	$CFG{mlockall} ? &mlockall : &munlockall	3298	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1998	and die "WARNING: m(un)lockall failed: $!\n";	3299	and die "WARNING: m(un)lockall failed: $!\n";
1999	};	3300	};
2000	warn $@ if $@;	3301	warn $@ if $@;
2001	}	3302	}
2002	}	3303	}
2003		3304
2004	sub main {	3305	sub main {
2005	# we must not ever block the main coroutine	3306	# we must not ever block the main coroutine
2006	local $Coro::idle = sub {	3307	local $Coro::idle = sub {
2007	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3308	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2008	(Coro::unblock_sub {	3309	(async {
		3310	$Coro::current->{desc} = "IDLE BUG HANDLER";
2009	Event::one_event;	3311	Event::one_event;
2010	})->();	3312	})->prio (Coro::PRIO_MAX);
2011	};	3313	};
2012		3314
2013	cfg_load;	3315	reload_config;
2014	db_load;	3316	db_init;
2015	load_extensions;	3317	load_extensions;
		3318
		3319	$TICK_WATCHER->start;
2016	Event::loop;	3320	Event::loop;
2017	}	3321	}
2018		3322
2019	#############################################################################	3323	#############################################################################
2020	# initialisation	3324	# initialisation and cleanup
2021		3325
		3326	# install some emergency cleanup handlers
		3327	BEGIN {
		3328	for my $signal (qw(INT HUP TERM)) {
		3329	Event->signal (
		3330	reentrant => 0,
		3331	data => WF_AUTOCANCEL,
		3332	signal => $signal,
		3333	prio => 0,
		3334	cb => sub {
		3335	cf::cleanup "SIG$signal";
		3336	},
		3337	);
		3338	}
		3339	}
		3340
		3341	sub write_runtime {
		3342	my $runtime = "$LOCALDIR/runtime";
		3343
		3344	# first touch the runtime file to show we are still running:
		3345	# the fsync below can take a very very long time.
		3346
		3347	IO::AIO::aio_utime $runtime, undef, undef;
		3348
		3349	my $guard = cf::lock_acquire "write_runtime";
		3350
		3351	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3352	or return;
		3353
		3354	my $value = $cf::RUNTIME + 90 + 10;
		3355	# 10 is the runtime save interval, for a monotonic clock
		3356	# 60 allows for the watchdog to kill the server.
		3357
		3358	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3359	and return;
		3360
		3361	# always fsync - this file is important
		3362	aio_fsync $fh
		3363	and return;
		3364
		3365	# touch it again to show we are up-to-date
		3366	aio_utime $fh, undef, undef;
		3367
		3368	close $fh
		3369	or return;
		3370
		3371	aio_rename "$runtime~", $runtime
		3372	and return;
		3373
		3374	warn "runtime file written.\n";
		3375
		3376	1
		3377	}
		3378
		3379	sub emergency_save() {
		3380	my $freeze_guard = cf::freeze_mainloop;
		3381
		3382	warn "enter emergency perl save\n";
		3383
		3384	cf::sync_job {
		3385	# use a peculiar iteration method to avoid tripping on perl
		3386	# refcount bugs in for. also avoids problems with players
		3387	# and maps saved/destroyed asynchronously.
		3388	warn "begin emergency player save\n";
		3389	for my $login (keys %cf::PLAYER) {
		3390	my $pl = $cf::PLAYER{$login} or next;
		3391	$pl->valid or next;
		3392	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
		3393	$pl->save;
		3394	}
		3395	warn "end emergency player save\n";
		3396
		3397	warn "begin emergency map save\n";
		3398	for my $path (keys %cf::MAP) {
		3399	my $map = $cf::MAP{$path} or next;
		3400	$map->valid or next;
		3401	$map->save;
		3402	}
		3403	warn "end emergency map save\n";
		3404
		3405	warn "begin emergency database checkpoint\n";
		3406	BDB::db_env_txn_checkpoint $DB_ENV;
		3407	warn "end emergency database checkpoint\n";
		3408	};
		3409
		3410	warn "leave emergency perl save\n";
		3411	}
		3412
		3413	sub post_cleanup {
		3414	my ($make_core) = @_;
		3415
		3416	warn Carp::longmess "post_cleanup backtrace"
		3417	if $make_core;
		3418	}
		3419
2022	sub reload() {	3420	sub do_reload_perl() {
2023	# can/must only be called in main	3421	# can/must only be called in main
2024	if ($Coro::current != $Coro::main) {	3422	if ($Coro::current != $Coro::main) {
2025	warn "can only reload from main coroutine\n";	3423	warn "can only reload from main coroutine";
2026	return;	3424	return;
2027	}	3425	}
2028		3426
2029	warn "reloading...";	3427	warn "reloading...";
2030		3428
2031	my $guard = freeze_mainloop;	3429	warn "entering sync_job";
		3430
		3431	cf::sync_job {
		3432	cf::write_runtime; # external watchdog should not bark
2032	cf::emergency_save;	3433	cf::emergency_save;
		3434	cf::write_runtime; # external watchdog should not bark
2033		3435
2034	eval {	3436	warn "syncing database to disk";
		3437	BDB::db_env_txn_checkpoint $DB_ENV;
		3438
2035	# if anything goes wrong in here, we should simply crash as we already saved	3439	# if anything goes wrong in here, we should simply crash as we already saved
2036		3440
2037	# cancel all watchers	3441	warn "cancelling all WF_AUTOCANCEL watchers";
2038	for (Event::all_watchers) {	3442	for (Event::all_watchers) {
2039	$_->cancel if $_->data & WF_AUTOCANCEL;	3443	$_->cancel if $_->data & WF_AUTOCANCEL;
2040	}	3444	}
2041		3445
		3446	warn "flushing outstanding aio requests";
		3447	for (;;) {
		3448	BDB::flush;
		3449	IO::AIO::flush;
		3450	Coro::cede_notself;
		3451	last unless IO::AIO::nreqs || BDB::nreqs;
		3452	warn "iterate...";
		3453	}
		3454
		3455	++$RELOAD;
		3456
2042	# cancel all extension coros	3457	warn "cancelling all extension coros";
2043	$_->cancel for values %EXT_CORO;	3458	$_->cancel for values %EXT_CORO;
2044	%EXT_CORO = ();	3459	%EXT_CORO = ();
2045		3460
2046	# unload all extensions	3461	warn "removing commands";
2047	for (@exts) {	3462	%COMMAND = ();
		3463
		3464	warn "removing ext/exti commands";
		3465	%EXTCMD = ();
		3466	%EXTICMD = ();
		3467
		3468	warn "unloading/nuking all extensions";
		3469	for my $pkg (@EXTS) {
2048	warn "unloading <$_>";	3470	warn "... unloading $pkg";
2049	unload_extension $_;	3471
		3472	if (my $cb = $pkg->can ("unload")) {
		3473	eval {
		3474	$cb->($pkg);
		3475	1
		3476	} or warn "$pkg unloaded, but with errors: $@";
2050	}	3477	}
2051		3478
		3479	warn "... nuking $pkg";
		3480	Symbol::delete_package $pkg;
		3481	}
		3482
2052	# unload all modules loaded from $LIBDIR	3483	warn "unloading all perl modules loaded from $LIBDIR";
2053	while (my ($k, $v) = each %INC) {	3484	while (my ($k, $v) = each %INC) {
2054	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3485	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2055		3486
2056	warn "removing <$k>";	3487	warn "... unloading $k";
2057	delete $INC{$k};	3488	delete $INC{$k};
2058		3489
2059	$k =~ s/\.pm$//;	3490	$k =~ s/\.pm$//;
2060	$k =~ s/\//::/g;	3491	$k =~ s/\//::/g;
2061		3492
…		…
2064	}	3495	}
2065		3496
2066	Symbol::delete_package $k;	3497	Symbol::delete_package $k;
2067	}	3498	}
2068		3499
2069	# sync database to disk
2070	cf::db_sync;
2071	IO::AIO::flush;
2072
2073	# get rid of safe::, as good as possible	3500	warn "getting rid of safe::, as good as possible";
2074	Symbol::delete_package "safe::$_"	3501	Symbol::delete_package "safe::$_"
2075	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3502	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2076		3503
2077	# remove register_script_function callbacks
2078	# TODO
2079
2080	# unload cf.pm "a bit"	3504	warn "unloading cf.pm \"a bit\"";
2081	delete $INC{"cf.pm"};	3505	delete $INC{"cf.pm"};
		3506	delete $INC{"cf/pod.pm"};
2082		3507
2083	# don't, removes xs symbols, too,	3508	# don't, removes xs symbols, too,
2084	# and global variables created in xs	3509	# and global variables created in xs
2085	#Symbol::delete_package __PACKAGE__;	3510	#Symbol::delete_package __PACKAGE__;
2086		3511
2087	# reload cf.pm	3512	warn "unload completed, starting to reload now";
		3513
2088	warn "reloading cf.pm";	3514	warn "reloading cf.pm";
2089	require cf;	3515	require cf;
2090	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3516	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2091		3517
2092	# load config and database again	3518	warn "loading config and database again";
2093	cf::cfg_load;	3519	cf::reload_config;
2094	cf::db_load;
2095		3520
2096	# load extensions
2097	warn "load extensions";	3521	warn "loading extensions";
2098	cf::load_extensions;	3522	cf::load_extensions;
2099		3523
2100	# reattach attachments to objects	3524	warn "reattaching attachments to objects/players";
2101	warn "reattach";	3525	_global_reattach; # objects, sockets
2102	_global_reattach;	3526	warn "reattaching attachments to maps";
2103	};	3527	reattach $_ for values %MAP;
		3528	warn "reattaching attachments to players";
		3529	reattach $_ for values %PLAYER;
2104		3530
2105	if ($@) {	3531	warn "leaving sync_job";
		3532
		3533	1
		3534	} or do {
2106	warn $@;	3535	warn $@;
2107	warn "error while reloading, exiting.";	3536	warn "error while reloading, exiting.";
2108	exit 1;	3537	exit 1;
2109	}	3538	};
2110		3539
2111	warn "reloaded successfully";	3540	warn "reloaded";
2112	};	3541	};
2113		3542
2114	#############################################################################	3543	our $RELOAD_WATCHER; # used only during reload
2115		3544
2116	unless ($LINK_MAP) {	3545	sub reload_perl() {
2117	$LINK_MAP = cf::map::new;	3546	# doing reload synchronously and two reloads happen back-to-back,
		3547	# coro crashes during coro_state_free->destroy here.
2118		3548
2119	$LINK_MAP->width (41);	3549	$RELOAD_WATCHER ||= Event->timer (
2120	$LINK_MAP->height (41);	3550	reentrant => 0,
2121	$LINK_MAP->alloc;
2122	$LINK_MAP->path ("{link}");
2123	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2124	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2125
2126	# dirty hack because... archetypes are not yet loaded
2127	Event->timer (
2128	after => 2,	3551	after => 0,
		3552	data => WF_AUTOCANCEL,
2129	cb => sub {	3553	cb => sub {
2130	$_[0]->w->cancel;	3554	do_reload_perl;
2131		3555	undef $RELOAD_WATCHER;
2132	# provide some exits "home"
2133	my $exit = cf::object::new "exit";
2134
2135	$exit->slaying ($EMERGENCY_POSITION->[0]);
2136	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2137	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2138
2139	$LINK_MAP->insert ($exit->clone, 19, 19);
2140	$LINK_MAP->insert ($exit->clone, 19, 20);
2141	$LINK_MAP->insert ($exit->clone, 19, 21);
2142	$LINK_MAP->insert ($exit->clone, 20, 19);
2143	$LINK_MAP->insert ($exit->clone, 20, 21);
2144	$LINK_MAP->insert ($exit->clone, 21, 19);
2145	$LINK_MAP->insert ($exit->clone, 21, 20);
2146	$LINK_MAP->insert ($exit->clone, 21, 21);
2147
2148	$exit->destroy;
2149	});	3556	},
2150		3557	);
2151	$LINK_MAP->{deny_save} = 1;
2152	$LINK_MAP->{deny_reset} = 1;
2153
2154	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2155	}	3558	}
2156
2157	register "<global>", __PACKAGE__;
2158		3559
2159	register_command "reload" => sub {	3560	register_command "reload" => sub {
2160	my ($who, $arg) = @_;	3561	my ($who, $arg) = @_;
2161		3562
2162	if ($who->flag (FLAG_WIZ)) {	3563	if ($who->flag (FLAG_WIZ)) {
2163	$who->message ("start of reload.");
2164	reload;
2165	$who->message ("end of reload.");	3564	$who->message ("reloading server.");
		3565	async {
		3566	$Coro::current->{desc} = "perl_reload";
		3567	reload_perl;
		3568	};
2166	}	3569	}
2167	};	3570	};
2168		3571
2169	unshift @INC, $LIBDIR;	3572	unshift @INC, $LIBDIR;
		3573
		3574	my $bug_warning = 0;
		3575
		3576	our @WAIT_FOR_TICK;
		3577	our @WAIT_FOR_TICK_BEGIN;
		3578
		3579	sub wait_for_tick {
		3580	return unless $TICK_WATCHER->is_active;
		3581	return if $Coro::current == $Coro::main;
		3582
		3583	my $signal = new Coro::Signal;
		3584	push @WAIT_FOR_TICK, $signal;
		3585	$signal->wait;
		3586	}
		3587
		3588	sub wait_for_tick_begin {
		3589	return unless $TICK_WATCHER->is_active;
		3590	return if $Coro::current == $Coro::main;
		3591
		3592	my $signal = new Coro::Signal;
		3593	push @WAIT_FOR_TICK_BEGIN, $signal;
		3594	$signal->wait;
		3595	}
2170		3596
2171	$TICK_WATCHER = Event->timer (	3597	$TICK_WATCHER = Event->timer (
2172	reentrant => 0,	3598	reentrant => 0,
		3599	parked => 1,
2173	prio => 0,	3600	prio => 0,
2174	at => $NEXT_TICK || $TICK,	3601	at => $NEXT_TICK || $TICK,
2175	data => WF_AUTOCANCEL,	3602	data => WF_AUTOCANCEL,
2176	cb => sub {	3603	cb => sub {
		3604	if ($Coro::current != $Coro::main) {
		3605	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3606	unless ++$bug_warning > 10;
		3607	return;
		3608	}
		3609
		3610	$NOW = $tick_start = Event::time;
		3611
2177	cf::server_tick; # one server iteration	3612	cf::server_tick; # one server iteration
		3613
2178	$RUNTIME += $TICK;	3614	$RUNTIME += $TICK;
2179	$NEXT_TICK += $TICK;	3615	$NEXT_TICK += $TICK;
2180		3616
		3617	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3618	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3619	Coro::async_pool {
		3620	$Coro::current->{desc} = "runtime saver";
		3621	write_runtime
		3622	or warn "ERROR: unable to write runtime file: $!";
		3623	};
		3624	}
		3625
		3626	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3627	$sig->send;
		3628	}
		3629	while (my $sig = shift @WAIT_FOR_TICK) {
		3630	$sig->send;
		3631	}
		3632
		3633	$NOW = Event::time;
		3634
2181	# if we are delayed by four ticks or more, skip them all	3635	# if we are delayed by four ticks or more, skip them all
2182	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3636	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2183		3637
2184	$TICK_WATCHER->at ($NEXT_TICK);	3638	$TICK_WATCHER->at ($NEXT_TICK);
2185	$TICK_WATCHER->start;	3639	$TICK_WATCHER->start;
		3640
		3641	$LOAD = ($NOW - $tick_start) / $TICK;
		3642	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3643
		3644	_post_tick;
2186	},	3645	},
2187	);	3646	);
2188		3647
		3648	{
		3649	BDB::min_parallel 8;
2189	IO::AIO::max_poll_time $TICK * 0.2;	3650	BDB::max_poll_time $TICK * 0.1;
2190		3651	$BDB_POLL_WATCHER = Event->io (
2191	Event->io (	3652	reentrant => 0,
2192	fd => IO::AIO::poll_fileno,	3653	fd => BDB::poll_fileno,
2193	poll => 'r',	3654	poll => 'r',
2194	prio => 5,	3655	prio => 0,
2195	data => WF_AUTOCANCEL,
2196	cb => \&IO::AIO::poll_cb,
2197	);
2198
2199	Event->timer (
2200	data => WF_AUTOCANCEL,	3656	data => WF_AUTOCANCEL,
		3657	cb => \&BDB::poll_cb,
		3658	);
		3659
		3660	BDB::set_sync_prepare {
		3661	my $status;
		3662	my $current = $Coro::current;
		3663	(
		3664	sub {
		3665	$status = $!;
		3666	$current->ready; undef $current;
		3667	},
		3668	sub {
		3669	Coro::schedule while defined $current;
		3670	$! = $status;
		3671	},
		3672	)
		3673	};
		3674
		3675	unless ($DB_ENV) {
		3676	$DB_ENV = BDB::db_env_create;
		3677	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3678	| BDB::LOG_AUTOREMOVE, 1);
		3679	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3680	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3681
		3682	cf::sync_job {
		3683	eval {
		3684	BDB::db_env_open
		3685	$DB_ENV,
		3686	$BDBDIR,
		3687	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3688	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3689	0666;
		3690
		3691	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3692	};
		3693
		3694	cf::cleanup "db_env_open(db): $@" if $@;
		3695	};
		3696	}
		3697
		3698	$BDB_DEADLOCK_WATCHER = Event->timer (
2201	after => 0,	3699	after => 3,
2202	interval => 10,	3700	interval => 1,
		3701	hard => 1,
		3702	prio => 0,
		3703	data => WF_AUTOCANCEL,
2203	cb => sub {	3704	cb => sub {
2204	(Coro::unblock_sub {	3705	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
2205	write_runtime	3706	},
2206	or warn "ERROR: unable to write runtime file: $!";	3707	);
		3708	$BDB_CHECKPOINT_WATCHER = Event->timer (
		3709	after => 11,
		3710	interval => 60,
		3711	hard => 1,
		3712	prio => 0,
		3713	data => WF_AUTOCANCEL,
		3714	cb => sub {
		3715	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3716	},
		3717	);
		3718	$BDB_TRICKLE_WATCHER = Event->timer (
		3719	after => 5,
		3720	interval => 10,
		3721	hard => 1,
		3722	prio => 0,
		3723	data => WF_AUTOCANCEL,
		3724	cb => sub {
		3725	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3726	},
		3727	);
		3728	}
		3729
		3730	{
		3731	IO::AIO::min_parallel 8;
		3732
		3733	undef $Coro::AIO::WATCHER;
		3734	IO::AIO::max_poll_time $TICK * 0.1;
		3735	$AIO_POLL_WATCHER = Event->io (
		3736	reentrant => 0,
		3737	data => WF_AUTOCANCEL,
		3738	fd => IO::AIO::poll_fileno,
		3739	poll => 'r',
		3740	prio => 0,
		3741	cb => \&IO::AIO::poll_cb,
		3742	);
		3743	}
		3744
		3745	my $_log_backtrace;
		3746
		3747	sub _log_backtrace {
		3748	my ($msg, @addr) = @_;
		3749
		3750	$msg =~ s/\n//;
		3751
		3752	# limit the # of concurrent backtraces
		3753	if ($_log_backtrace < 2) {
		3754	++$_log_backtrace;
		3755	async {
		3756	$Coro::current->{desc} = "abt $msg";
		3757
		3758	my @bt = fork_call {
		3759	@addr = map { sprintf "%x", $_ } @addr;
		3760	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3761	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3762	or die "addr2line: $!";
		3763
		3764	my @funcs;
		3765	my @res = <$fh>;
		3766	chomp for @res;
		3767	while (@res) {
		3768	my ($func, $line) = splice @res, 0, 2, ();
		3769	push @funcs, "[$func] $line";
		3770	}
		3771
		3772	@funcs
		3773	};
		3774
		3775	LOG llevInfo, "[ABT] $msg\n";
		3776	LOG llevInfo, "[ABT] $_\n" for @bt;
		3777	--$_log_backtrace;
2207	})->();	3778	};
		3779	} else {
		3780	LOG llevInfo, "[ABT] $msg\n";
		3781	LOG llevInfo, "[ABT] [suppressed]\n";
2208	},	3782	}
2209	);	3783	}
		3784
		3785	# load additional modules
		3786	use cf::pod;
2210		3787
2211	END { cf::emergency_save }	3788	END { cf::emergency_save }
2212		3789
2213	1	3790	1
2214		3791

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