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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.125 by root, Tue Jan 2 23:06:39 2007 UTC vs.
Revision 1.335 by root, Mon Aug 20 22:21:48 2007 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
		8	use Socket;
8	use Storable;	9	use Storable;
		10	use Event;
9	use Opcode;	11	use Opcode;
10	use Safe;	12	use Safe;
11	use Safe::Hole;	13	use Safe::Hole;
12		14
13	use Coro 3.3;	15	use Coro 3.64 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::Event;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::Storable;
		24	use Coro::Util ();
19		25
		26	use JSON::XS 1.4 ();
		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 2.32 ();
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 $DB_ENV;
46		86
47	our %CFG;	87	our %CFG;
48		88
49	our $UPTIME; $UPTIME ||= time;	89	our $UPTIME; $UPTIME ||= time;
50	our $RUNTIME;	90	our $RUNTIME;
51		91
		92	our %PLAYER; # all users
52	our %MAP; # all maps	93	our %MAP; # all maps
53	our $LINK_MAP; # the special {link} map	94	our $LINK_MAP; # the special {link} map, which is always available
54	our $FREEZE;	95
55	our $RANDOM_MAPS = cf::localdir . "/random";	96	# used to convert map paths into valid unix filenames by replacing / by ∕
56	our %EXT_CORO;	97	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		98
		99	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		100	our $LOADAVG; # same thing, but with alpha-smoothing
		101	our $tick_start; # for load detecting purposes
57		102
58	binmode STDOUT;	103	binmode STDOUT;
59	binmode STDERR;	104	binmode STDERR;
60		105
61	# read virtual server time, if available	106	# read virtual server time, if available
62	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	107	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
63	open my $fh, "<", cf::localdir . "/runtime"	108	open my $fh, "<", "$LOCALDIR/runtime"
64	or die "unable to read runtime file: $!";	109	or die "unable to read runtime file: $!";
65	$RUNTIME = <$fh> + 0.;	110	$RUNTIME = <$fh> + 0.;
66	}	111	}
67		112
68	mkdir cf::localdir;	113	mkdir $_
69	mkdir cf::localdir . "/" . cf::playerdir;	114	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
70	mkdir cf::localdir . "/" . cf::tmpdir;
71	mkdir cf::localdir . "/" . cf::uniquedir;
72	mkdir $RANDOM_MAPS;
73		115
74	# a special map that is always available	116	our $EMERGENCY_POSITION;
75	our $LINK_MAP;
76		117
77	our $EMERGENCY_POSITION = $cf::CFG{emergency_position} || ["/world/world_105_115", 5, 37];	118	sub cf::map::normalise;
78		119
79	#############################################################################	120	#############################################################################
80		121
81	=head2 GLOBAL VARIABLES	122	=head2 GLOBAL VARIABLES
82		123
…		…
89	=item $cf::RUNTIME	130	=item $cf::RUNTIME
90		131
91	The time this server has run, starts at 0 and is increased by $cf::TICK on	132	The time this server has run, starts at 0 and is increased by $cf::TICK on
92	every server tick.	133	every server tick.
93		134
94	=item $cf::LIBDIR	135	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		136	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		137	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
95		138
96	The perl library directory, where extensions and cf-specific modules can	139	Various directories - "/etc", read-only install directory, perl-library
97	be found. It will be added to C<@INC> automatically.	140	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		141	unique-items directory, player file directory, random maps directory and
		142	database environment.
98		143
99	=item $cf::NOW	144	=item $cf::NOW
100		145
101	The time of the last (current) server tick.	146	The time of the last (current) server tick.
102		147
103	=item $cf::TICK	148	=item $cf::TICK
104		149
105	The interval between server ticks, in seconds.	150	The interval between server ticks, in seconds.
		151
		152	=item $cf::LOADAVG
		153
		154	The current CPU load on the server (alpha-smoothed), as a value between 0
		155	(none) and 1 (overloaded), indicating how much time is spent on processing
		156	objects per tick. Healthy values are < 0.5.
		157
		158	=item $cf::LOAD
		159
		160	The raw value load value from the last tick.
106		161
107	=item %cf::CFG	162	=item %cf::CFG
108		163
109	Configuration for the server, loaded from C</etc/crossfire/config>, or	164	Configuration for the server, loaded from C</etc/crossfire/config>, or
110	from wherever your confdir points to.	165	from wherever your confdir points to.
		166
		167	=item cf::wait_for_tick, cf::wait_for_tick_begin
		168
		169	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
		170	returns directly I<after> the tick processing (and consequently, can only wake one process
		171	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
		172
		173	=item @cf::INVOKE_RESULTS
		174
		175	This array contains the results of the last C<invoke ()> call. When
		176	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		177	that call.
111		178
112	=back	179	=back
113		180
114	=cut	181	=cut
115		182
116	BEGIN {	183	BEGIN {
117	*CORE::GLOBAL::warn = sub {	184	*CORE::GLOBAL::warn = sub {
118	my $msg = join "", @_;	185	my $msg = join "", @_;
119	utf8::encode $msg;
120		186
121	$msg .= "\n"	187	$msg .= "\n"
122	unless $msg =~ /\n$/;	188	unless $msg =~ /\n$/;
123		189
		190	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		191
		192	utf8::encode $msg;
124	LOG llevError, "cfperl: $msg";	193	LOG llevError, $msg;
125	};	194	};
126	}	195	}
127		196
128	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	197	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
129	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	198	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
130	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	199	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
131	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	200	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
132	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	201	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		202	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
133	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	203	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
134		204
135	# we bless all objects into (empty) derived classes to force a method lookup	205	# we bless all objects into (empty) derived classes to force a method lookup
136	# within the Safe compartment.	206	# within the Safe compartment.
137	for my $pkg (qw(	207	for my $pkg (qw(
138	cf::global cf::attachable	208	cf::global cf::attachable
…		…
147		217
148	$Event::DIED = sub {	218	$Event::DIED = sub {
149	warn "error in event callback: @_";	219	warn "error in event callback: @_";
150	};	220	};
151		221
152	my %ext_pkg;	222	#############################################################################
153	my @exts;
154	my @hook;
155		223
156	=head2 UTILITY FUNCTIONS	224	=head2 UTILITY FUNCTIONS
157		225
158	=over 4	226	=over 4
159		227
160	=cut	228	=item dumpval $ref
161		229
162	use JSON::Syck (); # TODO# replace by JSON::PC once working	230	=cut
		231
		232	sub dumpval {
		233	eval {
		234	local $SIG{__DIE__};
		235	my $d;
		236	if (1) {
		237	$d = new Data::Dumper([$_[0]], ["*var"]);
		238	$d->Terse(1);
		239	$d->Indent(2);
		240	$d->Quotekeys(0);
		241	$d->Useqq(1);
		242	#$d->Bless(...);
		243	$d->Seen($_[1]) if @_ > 1;
		244	$d = $d->Dump();
		245	}
		246	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
		247	$d
		248	} || "[unable to dump $_[0]: '$@']";
		249	}
163		250
164	=item $ref = cf::from_json $json	251	=item $ref = cf::from_json $json
165		252
166	Converts a JSON string into the corresponding perl data structure.	253	Converts a JSON string into the corresponding perl data structure.
167		254
168	=cut
169
170	sub from_json($) {
171	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
172	JSON::Syck::Load $_[0]
173	}
174
175	=item $json = cf::to_json $ref	255	=item $json = cf::to_json $ref
176		256
177	Converts a perl data structure into its JSON representation.	257	Converts a perl data structure into its JSON representation.
178		258
179	=cut	259	=cut
180		260
181	sub to_json($) {	261	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
182	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
183	JSON::Syck::Dump $_[0]
184	}
185		262
186	=item my $guard = cf::guard { BLOCK }	263	sub to_json ($) { $json_coder->encode ($_[0]) }
187		264	sub from_json ($) { $json_coder->decode ($_[0]) }
188	Run the given callback when the guard object gets destroyed (useful for
189	coroutine cancellations).
190
191	You can call C<< ->cancel >> on the guard object to stop the block from
192	being executed.
193
194	=cut
195
196	sub guard(&) {
197	bless \(my $cb = $_[0]), cf::guard::;
198	}
199
200	sub cf::guard::cancel {
201	${$_[0]} = sub { };
202	}
203
204	sub cf::guard::DESTROY {
205	${$_[0]}->();
206	}
207		265
208	=item cf::lock_wait $string	266	=item cf::lock_wait $string
209		267
210	Wait until the given lock is available. See cf::lock_acquire.	268	Wait until the given lock is available. See cf::lock_acquire.
211		269
212	=item my $lock = cf::lock_acquire $string	270	=item my $lock = cf::lock_acquire $string
213		271
214	Wait until the given lock is available and then acquires it and returns	272	Wait until the given lock is available and then acquires it and returns
215	a guard object. If the guard object gets destroyed (goes out of scope,	273	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
216	for example when the coroutine gets canceled), the lock is automatically	274	for example when the coroutine gets canceled), the lock is automatically
217	returned.	275	returned.
218		276
219	Lock names should begin with a unique identifier (for example, find_map	277	Lock names should begin with a unique identifier (for example, cf::map::find
220	uses map_find and load_map uses map_load).	278	uses map_find and cf::map::load uses map_load).
		279
		280	=item $locked = cf::lock_active $string
		281
		282	Return true if the lock is currently active, i.e. somebody has locked it.
221		283
222	=cut	284	=cut
223		285
224	our %LOCK;	286	our %LOCK;
225		287
…		…
239	# wait, to be sure we are not locked	301	# wait, to be sure we are not locked
240	lock_wait $key;	302	lock_wait $key;
241		303
242	$LOCK{$key} = [];	304	$LOCK{$key} = [];
243		305
244	cf::guard {	306	Coro::guard {
245	# wake up all waiters, to be on the safe side	307	# wake up all waiters, to be on the safe side
246	$_->ready for @{ delete $LOCK{$key} };	308	$_->ready for @{ delete $LOCK{$key} };
247	}	309	}
248	}	310	}
249		311
		312	sub lock_active($) {
		313	my ($key) = @_;
		314
		315	! ! $LOCK{$key}
		316	}
		317
		318	sub freeze_mainloop {
		319	return unless $TICK_WATCHER->is_active;
		320
		321	my $guard = Coro::guard {
		322	$TICK_WATCHER->start;
		323	};
		324	$TICK_WATCHER->stop;
		325	$guard
		326	}
		327
		328	=item cf::get_slot $time[, $priority[, $name]]
		329
		330	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		331	This call blocks and returns only when you have at least C<$time> seconds
		332	of cpu time till the next tick. The slot is only valid till the next cede.
		333
		334	The optional C<$name> can be used to identify the job to run. It might be
		335	used for statistical purposes and should identify the same time-class.
		336
		337	Useful for short background jobs.
		338
		339	=cut
		340
		341	our @SLOT_QUEUE;
		342	our $SLOT_QUEUE;
		343
		344	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		345	$SLOT_QUEUE = Coro::async {
		346	my $signal = new Coro::Signal;
		347
		348	while () {
		349	next_job:
		350	my $avail = cf::till_tick;
		351	if ($avail > 0.01) {
		352	for (0 .. $#SLOT_QUEUE) {
		353	if ($SLOT_QUEUE[$_][0] < $avail) {
		354	my $job = splice @SLOT_QUEUE, $_, 1, ();
		355	$job->[2]->send;
		356	Coro::cede;
		357	goto next_job;
		358	}
		359	}
		360	}
		361
		362	if (@SLOT_QUEUE) {
		363	# we do not use wait_For_tick() as it returns immediately when tick is inactive
		364	push @cf::WAIT_FOR_TICK, $signal;
		365	$signal->wait;
		366	} else {
		367	Coro::schedule;
		368	}
		369	}
		370	};
		371
		372	sub get_slot($;$$) {
		373	my ($time, $pri, $name) = @_;
		374
		375	$time = $TICK * .6 if $time > $TICK * .6;
		376	my $sig = new Coro::Signal;
		377
		378	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		379	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		380	$SLOT_QUEUE->ready;
		381	$sig->wait;
		382	}
		383
		384	=item cf::async { BLOCK }
		385
		386	Currently the same as Coro::async_pool, meaning you cannot use
		387	C<on_destroy>, C<join> or other gimmicks on these coroutines. The only
		388	thing you are allowed to do is call C<prio> on it.
		389
		390	=cut
		391
		392	BEGIN { *async = \&Coro::async_pool }
		393
250	=item cf::sync_job { BLOCK }	394	=item cf::sync_job { BLOCK }
251		395
252	The design of crossfire+ requires that the main coro ($Coro::main) is	396	The design of Crossfire TRT requires that the main coroutine ($Coro::main)
253	always able to handle events or runnable, as crossfire+ is only partly	397	is always able to handle events or runnable, as Crossfire TRT is only
254	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	398	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		399	acceptable.
255		400
256	If it must be done, put the blocking parts into C<sync_job>. This will run	401	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	402	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	403	server will be frozen during this time, so the block should either finish
259	fast or be very important.	404	fast or be very important.
…		…
262		407
263	sub sync_job(&) {	408	sub sync_job(&) {
264	my ($job) = @_;	409	my ($job) = @_;
265		410
266	if ($Coro::current == $Coro::main) {	411	if ($Coro::current == $Coro::main) {
		412	my $time = Event::time;
		413
267	# this is the main coro, too bad, we have to block	414	# this is the main coro, too bad, we have to block
268	# till the operation succeeds, freezing the server :/	415	# till the operation succeeds, freezing the server :/
269		416
270	# TODO: use suspend/resume instead	417	# TODO: use suspend/resume instead
271	# (but this is cancel-safe)	418	# (but this is cancel-safe)
272	local $FREEZE = 1;	419	my $freeze_guard = freeze_mainloop;
273		420
274	my $busy = 1;	421	my $busy = 1;
275	my @res;	422	my @res;
276		423
277	(Coro::async {	424	(async {
278	@res = eval { $job->() };	425	@res = eval { $job->() };
279	warn $@ if $@;	426	warn $@ if $@;
280	undef $busy;	427	undef $busy;
281	})->prio (Coro::PRIO_MAX);	428	})->prio (Coro::PRIO_MAX);
282		429
283	while ($busy) {	430	while ($busy) {
284	Coro::cede_notself;	431	Coro::cede or Event::one_event;
285	Event::one_event unless Coro::nready;
286	}	432	}
		433
		434	$time = Event::time - $time;
		435
		436	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		437	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		438
		439	$tick_start += $time; # do not account sync jobs to server load
287		440
288	wantarray ? @res : $res[0]	441	wantarray ? @res : $res[0]
289	} else {	442	} else {
290	# we are in another coroutine, how wonderful, everything just works	443	# we are in another coroutine, how wonderful, everything just works
291		444
292	$job->()	445	$job->()
293	}	446	}
294	}	447	}
295		448
296	=item $coro = cf::coro { BLOCK }	449	=item $coro = cf::async_ext { BLOCK }
297		450
298	Creates and returns a new coro. This coro is automcatially being canceled	451	Like async, but this coro is automatically being canceled when the
299	when the extension calling this is being unloaded.	452	extension calling this is being unloaded.
300		453
301	=cut	454	=cut
302		455
303	sub coro(&) {	456	sub async_ext(&) {
304	my $cb = shift;	457	my $cb = shift;
305		458
306	my $coro; $coro = async {	459	my $coro = &Coro::async ($cb);
307	eval {
308	$cb->();
309	};
310	warn $@ if $@;
311	};
312		460
313	$coro->on_destroy (sub {	461	$coro->on_destroy (sub {
314	delete $EXT_CORO{$coro+0};	462	delete $EXT_CORO{$coro+0};
315	});	463	});
316	$EXT_CORO{$coro+0} = $coro;	464	$EXT_CORO{$coro+0} = $coro;
317		465
318	$coro	466	$coro
319	}	467	}
320		468
321	sub write_runtime {	469	=item fork_call { }, $args
322	my $runtime = cf::localdir . "/runtime";
323		470
324	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	471	Executes the given code block with the given arguments in a seperate
325	or return;	472	process, returning the results. Everything must be serialisable with
		473	Coro::Storable. May, of course, block. Note that the executed sub may
		474	never block itself or use any form of Event handling.
326		475
327	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	476	=cut
328	(aio_write $fh, 0, (length $value), $value, 0) <= 0
329	and return;
330		477
331	aio_fsync $fh	478	sub fork_call(&@) {
332	and return;	479	my ($cb, @args) = @_;
333		480
334	close $fh	481	# we seemingly have to make a local copy of the whole thing,
335	or return;	482	# otherwise perl prematurely frees the stuff :/
		483	# TODO: investigate and fix (liekly this will be rather laborious)
336		484
337	aio_rename "$runtime~", $runtime	485	my @res = Coro::Util::fork_eval {
338	and return;	486	reset_signals;
		487	&$cb
		488	}, @args;
339		489
		490	wantarray ? @res : $res[-1]
		491	}
		492
		493	=item $value = cf::db_get $family => $key
		494
		495	Returns a single value from the environment database.
		496
		497	=item cf::db_put $family => $key => $value
		498
		499	Stores the given C<$value> in the family. It can currently store binary
		500	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		501
		502	=cut
		503
		504	our $DB;
		505
		506	sub db_init {
		507	unless ($DB) {
		508	$DB = BDB::db_create $DB_ENV;
		509
		510	cf::sync_job {
		511	eval {
		512	$DB->set_flags (BDB::CHKSUM);
		513
		514	BDB::db_open $DB, undef, "db", undef, BDB::BTREE,
		515	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		516	cf::cleanup "db_open(db): $!" if $!;
		517	};
		518	cf::cleanup "db_open(db): $@" if $@;
		519	};
340	1	520	}
		521	}
		522
		523	sub db_get($$) {
		524	my $key = "$_[0]/$_[1]";
		525
		526	cf::sync_job {
		527	BDB::db_get $DB, undef, $key, my $data;
		528
		529	$! ? ()
		530	: $data
		531	}
		532	}
		533
		534	sub db_put($$$) {
		535	BDB::dbreq_pri 4;
		536	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		537	}
		538
		539	=item cf::cache $id => [$paths...], $processversion => $process
		540
		541	Generic caching function that returns the value of the resource $id,
		542	caching and regenerating as required.
		543
		544	This function can block.
		545
		546	=cut
		547
		548	sub cache {
		549	my ($id, $src, $processversion, $process) = @_;
		550
		551	my $meta =
		552	join "\x00",
		553	$processversion,
		554	map {
		555	aio_stat $_
		556	and Carp::croak "$_: $!";
		557
		558	($_, (stat _)[7,9])
		559	} @$src;
		560
		561	my $dbmeta = db_get cache => "$id/meta";
		562	if ($dbmeta ne $meta) {
		563	# changed, we may need to process
		564
		565	my @data;
		566	my $md5;
		567
		568	for (0 .. $#$src) {
		569	0 <= aio_load $src->[$_], $data[$_]
		570	or Carp::croak "$src->[$_]: $!";
		571	}
		572
		573	# if processing is expensive, check
		574	# checksum first
		575	if (1) {
		576	$md5 =
		577	join "\x00",
		578	$processversion,
		579	map {
		580	Coro::cede;
		581	($src->[$_], Digest::MD5::md5_hex $data[$_])
		582	} 0.. $#$src;
		583
		584
		585	my $dbmd5 = db_get cache => "$id/md5";
		586	if ($dbmd5 eq $md5) {
		587	db_put cache => "$id/meta", $meta;
		588
		589	return db_get cache => "$id/data";
		590	}
		591	}
		592
		593	my $t1 = Time::HiRes::time;
		594	my $data = $process->(\@data);
		595	my $t2 = Time::HiRes::time;
		596
		597	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		598
		599	db_put cache => "$id/data", $data;
		600	db_put cache => "$id/md5" , $md5;
		601	db_put cache => "$id/meta", $meta;
		602
		603	return $data;
		604	}
		605
		606	db_get cache => "$id/data"
		607	}
		608
		609	=item cf::datalog type => key => value, ...
		610
		611	Log a datalog packet of the given type with the given key-value pairs.
		612
		613	=cut
		614
		615	sub datalog($@) {
		616	my ($type, %kv) = @_;
		617	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
341	}	618	}
342		619
343	=back	620	=back
344		621
345	=cut	622	=cut
346
347	#############################################################################
348
349	package cf::path;
350
351	sub new {
352	my ($class, $path, $base) = @_;
353
354	$path = $path->as_string if ref $path;
355
356	my $self = bless { }, $class;
357
358	# {... are special paths that are not touched
359	# ?xxx/... are special absolute paths
360	# ?random/... random maps
361	# /! non-realised random map exit
362	# /... normal maps
363	# ~/... per-player maps without a specific player (DO NOT USE)
364	# ~user/... per-player map of a specific user
365
366	if ($path =~ /^{/) {
367	# fine as it is
368	} elsif ($path =~ s{^\?random/}{}) {
369	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
370	$self->{random} = cf::from_json $data;
371	} else {
372	if ($path =~ s{^~([^/]+)?}{}) {
373	$self->{user_rel} = 1;
374
375	if (defined $1) {
376	$self->{user} = $1;
377	} elsif ($base =~ m{^~([^/]+)/}) {
378	$self->{user} = $1;
379	} else {
380	warn "cannot resolve user-relative path without user <$path,$base>\n";
381	}
382	} elsif ($path =~ /^\//) {
383	# already absolute
384	} else {
385	$base =~ s{[^/]+/?$}{};
386	return $class->new ("$base/$path");
387	}
388
389	for ($path) {
390	redo if s{/\.?/}{/};
391	redo if s{/[^/]+/\.\./}{/};
392	}
393	}
394
395	$self->{path} = $path;
396
397	$self
398	}
399
400	# the name / primary key / in-game path
401	sub as_string {
402	my ($self) = @_;
403
404	$self->{user_rel} ? "~$self->{user}$self->{path}"
405	: $self->{random} ? "?random/$self->{path}"
406	: $self->{path}
407	}
408
409	# the displayed name, this is a one way mapping
410	sub visible_name {
411	my ($self) = @_;
412
413	# if (my $rmp = $self->{random}) {
414	# # todo: be more intelligent about this
415	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
416	# } else {
417	$self->as_string
418	# }
419	}
420
421	# escape the /'s in the path
422	sub _escaped_path {
423	# ∕ is U+2215
424	(my $path = $_[0]{path}) =~ s/\//∕/g;
425	$path
426	}
427
428	# the original (read-only) location
429	sub load_path {
430	my ($self) = @_;
431
432	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
433	}
434
435	# the temporary/swap location
436	sub save_path {
437	my ($self) = @_;
438
439	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
440	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
441	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
442	}
443
444	# the unique path, might be eq to save_path
445	sub uniq_path {
446	my ($self) = @_;
447
448	$self->{user_rel} || $self->{random}
449	? undef
450	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
451	}
452
453	# return random map parameters, or undef
454	sub random_map_params {
455	my ($self) = @_;
456
457	$self->{random}
458	}
459
460	# this is somewhat ugly, but style maps do need special treatment
461	sub is_style_map {
462	$_[0]{path} =~ m{^/styles/}
463	}
464
465	package cf;
466		623
467	#############################################################################	624	#############################################################################
468		625
469	=head2 ATTACHABLE OBJECTS	626	=head2 ATTACHABLE OBJECTS
470		627
…		…
472	attach callbacks/event handlers (a collection of which is called an "attachment")	629	attach callbacks/event handlers (a collection of which is called an "attachment")
473	to it. All such attachable objects support the following methods.	630	to it. All such attachable objects support the following methods.
474		631
475	In the following description, CLASS can be any of C<global>, C<object>	632	In the following description, CLASS can be any of C<global>, C<object>
476	C<player>, C<client> or C<map> (i.e. the attachable objects in	633	C<player>, C<client> or C<map> (i.e. the attachable objects in
477	crossfire+).	634	Crossfire TRT).
478		635
479	=over 4	636	=over 4
480		637
481	=item $attachable->attach ($attachment, key => $value...)	638	=item $attachable->attach ($attachment, key => $value...)
482		639
…		…
596	our @CB_TYPE = (); # registry for type (cf-object class) based events	753	our @CB_TYPE = (); # registry for type (cf-object class) based events
597	our @CB_MAP = ();	754	our @CB_MAP = ();
598		755
599	my %attachment;	756	my %attachment;
600		757
		758	sub cf::attachable::thawer_merge {
		759	# simply override everything except _meta
		760	local $_[0]{_meta};
		761	%{$_[0]} = %{$_[1]};
		762	}
		763
601	sub _attach_cb($$$$) {	764	sub _attach_cb($$$$) {
602	my ($registry, $event, $prio, $cb) = @_;	765	my ($registry, $event, $prio, $cb) = @_;
603		766
604	use sort 'stable';	767	use sort 'stable';
605		768
…		…
639	$registry = $CB_TYPE[$object_type] ||= [];	802	$registry = $CB_TYPE[$object_type] ||= [];
640		803
641	} elsif ($type eq "subtype") {	804	} elsif ($type eq "subtype") {
642	defined $object_type or Carp::croak "subtype specified without type";	805	defined $object_type or Carp::croak "subtype specified without type";
643	my $object_subtype = shift @arg;	806	my $object_subtype = shift @arg;
644	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	807	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
645		808
646	} elsif ($type eq "package") {	809	} elsif ($type eq "package") {
647	my $pkg = shift @arg;	810	my $pkg = shift @arg;
648		811
649	while (my ($name, $id) = each %cb_id) {	812	while (my ($name, $id) = each %cb_id) {
…		…
678	_attach $registry, $klass, @attach;	841	_attach $registry, $klass, @attach;
679	}	842	}
680		843
681	$obj->{$name} = \%arg;	844	$obj->{$name} = \%arg;
682	} else {	845	} else {
683	warn "object uses attachment '$name' that is not available, postponing.\n";	846	warn "object uses attachment '$name' which is not available, postponing.\n";
684	}	847	}
685		848
686	$obj->{_attachment}{$name} = undef;	849	$obj->{_attachment}{$name} = undef;
687	}	850	}
688		851
…		…
690	if (ref $_[0]) {	853	if (ref $_[0]) {
691	_object_attach @_;	854	_object_attach @_;
692	} else {	855	} else {
693	_attach shift->_attach_registry, @_;	856	_attach shift->_attach_registry, @_;
694	}	857	}
		858	_recalc_want;
695	};	859	};
696		860
697	# all those should be optimised	861	# all those should be optimised
698	sub cf::attachable::detach {	862	sub cf::attachable::detach {
699	my ($obj, $name) = @_;	863	my ($obj, $name) = @_;
…		…
702	delete $obj->{_attachment}{$name};	866	delete $obj->{_attachment}{$name};
703	reattach ($obj);	867	reattach ($obj);
704	} else {	868	} else {
705	Carp::croak "cannot, currently, detach class attachments";	869	Carp::croak "cannot, currently, detach class attachments";
706	}	870	}
		871	_recalc_want;
707	};	872	};
708		873
709	sub cf::attachable::attached {	874	sub cf::attachable::attached {
710	my ($obj, $name) = @_;	875	my ($obj, $name) = @_;
711		876
…		…
726	";	891	";
727	die if $@;	892	die if $@;
728	}	893	}
729		894
730	our $override;	895	our $override;
731	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	896	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
732		897
733	sub override {	898	sub override {
734	$override = 1;	899	$override = 1;
735	@invoke_results = ();	900	@INVOKE_RESULTS = (@_);
736	}	901	}
737		902
738	sub do_invoke {	903	sub do_invoke {
739	my $event = shift;	904	my $event = shift;
740	my $callbacks = shift;	905	my $callbacks = shift;
741		906
742	@invoke_results = ();	907	@INVOKE_RESULTS = ();
743		908
744	local $override;	909	local $override;
745		910
746	for (@$callbacks) {	911	for (@$callbacks) {
747	eval { &{$_->[1]} };	912	eval { &{$_->[1]} };
…		…
764		929
765	Generate an object-specific event with the given arguments.	930	Generate an object-specific event with the given arguments.
766		931
767	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	932	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
768	removed in future versions), and there is no public API to access override	933	removed in future versions), and there is no public API to access override
769	results (if you must, access C<@cf::invoke_results> directly).	934	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
770		935
771	=back	936	=back
772		937
773	=cut	938	=cut
774		939
775	#############################################################################	940	#############################################################################
776	# object support	941	# object support
		942	#
		943
		944	sub _can_merge {
		945	my ($ob1, $ob2) = @_;
		946
		947	local $Storable::canonical = 1;
		948	my $fob1 = Storable::freeze $ob1;
		949	my $fob2 = Storable::freeze $ob2;
		950
		951	$fob1 eq $fob2
		952	}
777		953
778	sub reattach {	954	sub reattach {
779	# basically do the same as instantiate, without calling instantiate	955	# basically do the same as instantiate, without calling instantiate
780	my ($obj) = @_;	956	my ($obj) = @_;
		957
		958	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
781		959
782	my $registry = $obj->registry;	960	my $registry = $obj->registry;
783		961
784	@$registry = ();	962	@$registry = ();
785		963
…		…
832	$filename, length $$rdata, scalar @$objs;	1010	$filename, length $$rdata, scalar @$objs;
833		1011
834	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1012	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
835	chmod SAVE_MODE, $fh;	1013	chmod SAVE_MODE, $fh;
836	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1014	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
837	aio_fsync $fh;	1015	aio_fsync $fh if $cf::USE_FSYNC;
838	close $fh;	1016	close $fh;
839		1017
840	if (@$objs) {	1018	if (@$objs) {
841	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1019	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
842	chmod SAVE_MODE, $fh;	1020	chmod SAVE_MODE, $fh;
843	my $data = Storable::nfreeze { version => 1, objs => $objs };	1021	my $data = Storable::nfreeze { version => 1, objs => $objs };
844	aio_write $fh, 0, (length $data), $data, 0;	1022	aio_write $fh, 0, (length $data), $data, 0;
845	aio_fsync $fh;	1023	aio_fsync $fh if $cf::USE_FSYNC;
846	close $fh;	1024	close $fh;
847	aio_rename "$filename.pst~", "$filename.pst";	1025	aio_rename "$filename.pst~", "$filename.pst";
848	}	1026	}
849	} else {	1027	} else {
850	aio_unlink "$filename.pst";	1028	aio_unlink "$filename.pst";
…		…
882	or return;	1060	or return;
883	$av = eval { (Storable::thaw $av)->{objs} };	1061	$av = eval { (Storable::thaw $av)->{objs} };
884	}	1062	}
885		1063
886	warn sprintf "loading %s (%d)\n",	1064	warn sprintf "loading %s (%d)\n",
887	$filename, length $data, scalar @{$av || []};#d#	1065	$filename, length $data, scalar @{$av || []};
888	return ($data, $av);	1066	return ($data, $av);
889	}	1067	}
		1068
		1069	=head2 COMMAND CALLBACKS
		1070
		1071	=over 4
		1072
		1073	=cut
890		1074
891	#############################################################################	1075	#############################################################################
892	# command handling &c	1076	# command handling &c
893		1077
894	=item cf::register_command $name => \&callback($ob,$args);	1078	=item cf::register_command $name => \&callback($ob,$args);
…		…
907	push @{ $COMMAND{$name} }, [$caller, $cb];	1091	push @{ $COMMAND{$name} }, [$caller, $cb];
908	}	1092	}
909		1093
910	=item cf::register_extcmd $name => \&callback($pl,$packet);	1094	=item cf::register_extcmd $name => \&callback($pl,$packet);
911		1095
912	Register a callbackf ro execution when the client sends an extcmd packet.	1096	Register a callback for execution when the client sends an (synchronous)
		1097	extcmd packet. Ext commands will be processed in the order they are
		1098	received by the server, like other user commands. The first argument is
		1099	the logged-in player. Ext commands can only be processed after a player
		1100	has logged in successfully.
913		1101
914	If the callback returns something, it is sent back as if reply was being	1102	If the callback returns something, it is sent back as if reply was being
915	called.	1103	called.
916		1104
		1105	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1106
		1107	Register a callback for execution when the client sends an (asynchronous)
		1108	exticmd packet. Exti commands are processed by the server as soon as they
		1109	are received, i.e. out of order w.r.t. other commands. The first argument
		1110	is a client socket. Exti commands can be received anytime, even before
		1111	log-in.
		1112
		1113	If the callback returns something, it is sent back as if reply was being
		1114	called.
		1115
917	=cut	1116	=cut
918		1117
919	sub register_extcmd {	1118	sub register_extcmd {
920	my ($name, $cb) = @_;	1119	my ($name, $cb) = @_;
921		1120
922	my $caller = caller;
923	#warn "registering extcmd '$name' to '$caller'";
924
925	$EXTCMD{$name} = [$cb, $caller];	1121	$EXTCMD{$name} = $cb;
		1122	}
		1123
		1124	sub register_exticmd {
		1125	my ($name, $cb) = @_;
		1126
		1127	$EXTICMD{$name} = $cb;
926	}	1128	}
927		1129
928	cf::player->attach (	1130	cf::player->attach (
929	on_command => sub {	1131	on_command => sub {
930	my ($pl, $name, $params) = @_;	1132	my ($pl, $name, $params) = @_;
…		…
939	cf::override;	1141	cf::override;
940	},	1142	},
941	on_extcmd => sub {	1143	on_extcmd => sub {
942	my ($pl, $buf) = @_;	1144	my ($pl, $buf) = @_;
943		1145
944	my $msg = eval { from_json $buf };	1146	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
945		1147
946	if (ref $msg) {	1148	if (ref $msg) {
		1149	my ($type, $reply, @payload) =
		1150	"ARRAY" eq ref $msg
		1151	? @$msg
		1152	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1153
947	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1154	if (my $cb = $EXTCMD{$type}) {
948	if (my %reply = $cb->[0]->($pl, $msg)) {	1155	my @reply = $cb->($pl, @payload);
		1156
949	$pl->ext_reply ($msg->{msgid}, %reply);	1157	$pl->ext_reply ($reply, @reply)
950	}	1158	if $reply;
951	}	1159	}
952	} else {	1160	} else {
953	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1161	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
954	}	1162	}
955		1163
956	cf::override;	1164	cf::override;
957	},	1165	},
958	);	1166	);
959		1167
960	sub register {
961	my ($base, $pkg) = @_;
962
963	#TODO
964	}
965
966	sub load_extension {	1168	sub load_extensions {
		1169	cf::sync_job {
		1170	my %todo;
		1171
		1172	for my $path (<$LIBDIR/*.ext>) {
		1173	next unless -r $path;
		1174
		1175	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1176	my $base = $1;
		1177	my $pkg = $1;
		1178	$pkg =~ s/[^[:word:]]/_/g;
		1179	$pkg = "ext::$pkg";
		1180
		1181	open my $fh, "<:utf8", $path
		1182	or die "$path: $!";
		1183
		1184	my $source = do { local $/; <$fh> };
		1185
		1186	my %ext = (
		1187	path => $path,
		1188	base => $base,
		1189	pkg => $pkg,
		1190	);
		1191
		1192	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1193	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1194
		1195	$ext{source} =
		1196	"package $pkg; use strict; use utf8;\n"
		1197	. "#line 1 \"$path\"\n{\n"
		1198	. $source
		1199	. "\n};\n1";
		1200
		1201	$todo{$base} = \%ext;
		1202	}
		1203
		1204	my %done;
		1205	while (%todo) {
		1206	my $progress;
		1207
		1208	while (my ($k, $v) = each %todo) {
		1209	for (split /,\s*/, $v->{meta}{depends}) {
		1210	goto skip
		1211	unless exists $done{$_};
		1212	}
		1213
		1214	warn "... loading '$k' into '$v->{pkg}'\n";
		1215
		1216	unless (eval $v->{source}) {
		1217	my $msg = $@ ? "$v->{path}: $@\n"
		1218	: "$v->{base}: extension inactive.\n";
		1219
		1220	if (exists $v->{meta}{mandatory}) {
		1221	warn $msg;
		1222	warn "mandatory extension failed to load, exiting.\n";
		1223	exit 1;
		1224	}
		1225
		1226	warn $msg;
		1227	}
		1228
		1229	$done{$k} = delete $todo{$k};
		1230	push @EXTS, $v->{pkg};
		1231	$progress = 1;
		1232	}
		1233
		1234	skip:
		1235	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1236	unless $progress;
		1237	}
		1238	};
		1239	}
		1240
		1241	#############################################################################
		1242
		1243	=back
		1244
		1245	=head2 CORE EXTENSIONS
		1246
		1247	Functions and methods that extend core crossfire objects.
		1248
		1249	=cut
		1250
		1251	package cf::player;
		1252
		1253	use Coro::AIO;
		1254
		1255	=head3 cf::player
		1256
		1257	=over 4
		1258
		1259	=item cf::player::find $login
		1260
		1261	Returns the given player object, loading it if necessary (might block).
		1262
		1263	=cut
		1264
		1265	sub playerdir($) {
		1266	"$PLAYERDIR/"
		1267	. (ref $_[0] ? $_[0]->ob->name : $_[0])
		1268	}
		1269
		1270	sub path($) {
		1271	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
		1272
		1273	(playerdir $login) . "/playerdata"
		1274	}
		1275
		1276	sub find_active($) {
		1277	$cf::PLAYER{$_[0]}
		1278	and $cf::PLAYER{$_[0]}->active
		1279	and $cf::PLAYER{$_[0]}
		1280	}
		1281
		1282	sub exists($) {
		1283	my ($login) = @_;
		1284
		1285	$cf::PLAYER{$login}
		1286	or cf::sync_job { !aio_stat path $login }
		1287	}
		1288
		1289	sub find($) {
		1290	return $cf::PLAYER{$_[0]} || do {
		1291	my $login = $_[0];
		1292
		1293	my $guard = cf::lock_acquire "user_find:$login";
		1294
		1295	$cf::PLAYER{$_[0]} || do {
		1296	# rename old playerfiles to new ones
		1297	#TODO: remove when no longer required
		1298	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1299	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1300	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1301	aio_unlink +(playerdir $login) . "/$login.pl";
		1302
		1303	my $pl = load_pl path $login
		1304	or return;
		1305	$cf::PLAYER{$login} = $pl
		1306	}
		1307	}
		1308	}
		1309
		1310	sub save($) {
		1311	my ($pl) = @_;
		1312
		1313	return if $pl->{deny_save};
		1314
		1315	my $path = path $pl;
		1316	my $guard = cf::lock_acquire "user_save:$path";
		1317
		1318	return if $pl->{deny_save};
		1319
		1320	aio_mkdir playerdir $pl, 0770;
		1321	$pl->{last_save} = $cf::RUNTIME;
		1322
		1323	$pl->save_pl ($path);
		1324	Coro::cede;
		1325	}
		1326
		1327	sub new($) {
		1328	my ($login) = @_;
		1329
		1330	my $self = create;
		1331
		1332	$self->ob->name ($login);
		1333	$self->{deny_save} = 1;
		1334
		1335	$cf::PLAYER{$login} = $self;
		1336
		1337	$self
		1338	}
		1339
		1340	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1341
		1342	=cut
		1343
		1344	sub send_msg {
		1345	my $ns = shift->ns
		1346	or return;
		1347	$ns->send_msg (@_);
		1348	}
		1349
		1350	=item $pl->quit_character
		1351
		1352	Nukes the player without looking back. If logged in, the connection will
		1353	be destroyed. May block for a long time.
		1354
		1355	=cut
		1356
		1357	sub quit_character {
		1358	my ($pl) = @_;
		1359
		1360	my $name = $pl->ob->name;
		1361
		1362	$pl->{deny_save} = 1;
		1363	$pl->password ("*"); # this should lock out the player until we nuked the dir
		1364
		1365	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
		1366	$pl->deactivate;
		1367	$pl->invoke (cf::EVENT_PLAYER_QUIT);
		1368	$pl->ns->destroy if $pl->ns;
		1369
		1370	my $path = playerdir $pl;
		1371	my $temp = "$path~$cf::RUNTIME~deleting~";
		1372	aio_rename $path, $temp;
		1373	delete $cf::PLAYER{$pl->ob->name};
		1374	$pl->destroy;
		1375
		1376	my $prefix = qr<^~\Q$name\E/>;
		1377
		1378	# nuke player maps
		1379	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1380
		1381	IO::AIO::aio_rmtree $temp;
		1382	}
		1383
		1384	=item $pl->kick
		1385
		1386	Kicks a player out of the game. This destroys the connection.
		1387
		1388	=cut
		1389
		1390	sub kick {
		1391	my ($pl, $kicker) = @_;
		1392
		1393	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1394	$pl->killer ("kicked");
		1395	$pl->ns->destroy;
		1396	}
		1397
		1398	=item cf::player::list_logins
		1399
		1400	Returns am arrayref of all valid playernames in the system, can take a
		1401	while and may block, so not sync_job-capable, ever.
		1402
		1403	=cut
		1404
		1405	sub list_logins {
		1406	my $dirs = aio_readdir $PLAYERDIR
		1407	or return [];
		1408
		1409	my @logins;
		1410
		1411	for my $login (@$dirs) {
		1412	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;
		1413	aio_read $fh, 0, 512, my $buf, 0 or next;
		1414	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1415
		1416	utf8::decode $login;
		1417	push @logins, $login;
		1418	}
		1419
		1420	\@logins
		1421	}
		1422
		1423	=item $player->maps
		1424
		1425	Returns an arrayref of map paths that are private for this
		1426	player. May block.
		1427
		1428	=cut
		1429
		1430	sub maps($) {
		1431	my ($pl) = @_;
		1432
		1433	$pl = ref $pl ? $pl->ob->name : $pl;
		1434
		1435	my $files = aio_readdir playerdir $pl
		1436	or return;
		1437
		1438	my @paths;
		1439
		1440	for (@$files) {
		1441	utf8::decode $_;
		1442	next if /\.(?:pl|pst)$/;
		1443	next unless /^$PATH_SEP/o;
		1444
		1445	push @paths, cf::map::normalise "~$pl/$_";
		1446	}
		1447
		1448	\@paths
		1449	}
		1450
		1451	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1452
		1453	Expand crossfire pod fragments into protocol xml.
		1454
		1455	=cut
		1456
		1457	sub expand_cfpod {
		1458	((my $self), (local $_)) = @_;
		1459
		1460	# escape & and <
		1461	s/&/&amp;/g;
		1462	s/(?<![BIUGH])</&lt;/g;
		1463
		1464	# this is buggy, it needs to properly take care of nested <'s
		1465
		1466	1 while
		1467	# replace B<>, I<>, U<> etc.
		1468	s/B<([^\>]*)>/<b>$1<\/b>/
		1469	|| s/I<([^\>]*)>/<i>$1<\/i>/
		1470	|| s/U<([^\>]*)>/<u>$1<\/u>/
		1471	# replace G<male|female> tags
		1472	|| s{G<([^>|]*)\|([^>]*)>}{
		1473	$self->gender ? $2 : $1
		1474	}ge
		1475	# replace H<hint text>
		1476	|| s{H<([^\>]*)>}
		1477	{
		1478	("<fg name=\"lightblue\">[$1 (Use hintmode to suppress hints)]</fg>",
		1479	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1480	"")
		1481	[$self->{hintmode}]
		1482	}ge;
		1483
		1484	# create single paragraphs (very hackish)
		1485	s/(?<=\S)\n(?=\w)/ /g;
		1486
		1487	# compress some whitespace
		1488	s/\s+\n/\n/g; # ws line-ends
		1489	s/\n\n+/\n/g; # double lines
		1490	s/^\n+//; # beginning lines
		1491	s/\n+$//; # ending lines
		1492
		1493	$_
		1494	}
		1495
		1496	sub hintmode {
		1497	$_[0]{hintmode} = $_[1] if @_ > 1;
		1498	$_[0]{hintmode}
		1499	}
		1500
		1501	=item $player->ext_reply ($msgid, @msg)
		1502
		1503	Sends an ext reply to the player.
		1504
		1505	=cut
		1506
		1507	sub ext_reply($$@) {
		1508	my ($self, $id, @msg) = @_;
		1509
		1510	if ($self->ns->extcmd == 2) {
		1511	$self->send ("ext " . $self->ns->{json_coder}->encode (["reply-$id", @msg]));
		1512	} elsif ($self->ns->extcmd == 1) {
		1513	#TODO: version 1, remove
		1514	unshift @msg, msgtype => "reply", msgid => $id;
		1515	$self->send ("ext " . $self->ns->{json_coder}->encode ({@msg}));
		1516	}
		1517	}
		1518
		1519	=item $player->ext_msg ($type, @msg)
		1520
		1521	Sends an ext event to the client.
		1522
		1523	=cut
		1524
		1525	sub ext_msg($$@) {
		1526	my ($self, $type, @msg) = @_;
		1527
		1528	$self->ns->ext_msg ($type, @msg);
		1529	}
		1530
		1531	=head3 cf::region
		1532
		1533	=over 4
		1534
		1535	=cut
		1536
		1537	package cf::region;
		1538
		1539	=item cf::region::find_by_path $path
		1540
		1541	Tries to decuce the likely region for a map knowing only its path.
		1542
		1543	=cut
		1544
		1545	sub find_by_path($) {
967	my ($path) = @_;	1546	my ($path) = @_;
968		1547
969	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1548	my ($match, $specificity);
970	my $base = $1;
971	my $pkg = $1;
972	$pkg =~ s/[^[:word:]]/_/g;
973	$pkg = "ext::$pkg";
974		1549
975	warn "loading '$path' into '$pkg'\n";	1550	for my $region (list) {
976		1551	if ($region->{match} && $path =~ $region->{match}) {
977	open my $fh, "<:utf8", $path	1552	($match, $specificity) = ($region, $region->specificity)
978	or die "$path: $!";	1553	if $region->specificity > $specificity;
979		1554	}
980	my $source =
981	"package $pkg; use strict; use utf8;\n"
982	. "#line 1 \"$path\"\n{\n"
983	. (do { local $/; <$fh> })
984	. "\n};\n1";
985
986	eval $source
987	or die $@ ? "$path: $@\n"
988	: "extension disabled.\n";
989
990	push @exts, $pkg;
991	$ext_pkg{$base} = $pkg;
992
993	# no strict 'refs';
994	# @{"$pkg\::ISA"} = ext::;
995
996	register $base, $pkg;
997	}
998
999	sub unload_extension {
1000	my ($pkg) = @_;
1001
1002	warn "removing extension $pkg\n";
1003
1004	# remove hooks
1005	#TODO
1006	# for my $idx (0 .. $#PLUGIN_EVENT) {
1007	# delete $hook[$idx]{$pkg};
1008	# }	1555	}
1009		1556
1010	# remove commands	1557	$match
1011	for my $name (keys %COMMAND) {
1012	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1013
1014	if (@cb) {
1015	$COMMAND{$name} = \@cb;
1016	} else {
1017	delete $COMMAND{$name};
1018	}
1019	}
1020
1021	# remove extcmds
1022	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1023	delete $EXTCMD{$name};
1024	}
1025
1026	if (my $cb = $pkg->can ("unload")) {
1027	eval {
1028	$cb->($pkg);
1029	1
1030	} or warn "$pkg unloaded, but with errors: $@";
1031	}
1032
1033	Symbol::delete_package $pkg;
1034	}
1035
1036	sub load_extensions {
1037	for my $ext (<$LIBDIR/*.ext>) {
1038	next unless -r $ext;
1039	eval {
1040	load_extension $ext;
1041	1
1042	} or warn "$ext not loaded: $@";
1043	}
1044	}
1045
1046	#############################################################################
1047	# load/save/clean perl data associated with a map
1048
1049	*cf::mapsupport::on_clean = sub {
1050	my ($map) = @_;
1051
1052	my $path = $map->tmpname;
1053	defined $path or return;
1054
1055	unlink "$path.pst";
1056	};
1057
1058	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1059
1060	#############################################################################
1061	# load/save perl data associated with player->ob objects
1062
1063	sub all_objects(@) {
1064	@_, map all_objects ($_->inv), @_
1065	}
1066
1067	# TODO: compatibility cruft, remove when no longer needed
1068	cf::player->attach (
1069	on_load => sub {
1070	my ($pl, $path) = @_;
1071
1072	for my $o (all_objects $pl->ob) {
1073	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1074	$o->set_ob_key_value ("_perl_data");
1075
1076	%$o = %{ Storable::thaw pack "H*", $value };
1077	}
1078	}
1079	},
1080	);
1081
1082	#############################################################################
1083
1084	=head2 CORE EXTENSIONS
1085
1086	Functions and methods that extend core crossfire objects.
1087
1088	=head3 cf::player
1089
1090	=over 4
1091
1092	=item cf::player::exists $login
1093
1094	Returns true when the given account exists.
1095
1096	=cut
1097
1098	sub cf::player::exists($) {
1099	cf::player::find $_[0]
1100	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1101	}
1102
1103	=item $player->ext_reply ($msgid, $msgtype, %msg)
1104
1105	Sends an ext reply to the player.
1106
1107	=cut
1108
1109	sub cf::player::ext_reply($$$%) {
1110	my ($self, $id, %msg) = @_;
1111
1112	$msg{msgid} = $id;
1113
1114	$self->send ("ext " . to_json \%msg);
1115	}	1558	}
1116		1559
1117	=back	1560	=back
1118
1119		1561
1120	=head3 cf::map	1562	=head3 cf::map
1121		1563
1122	=over 4	1564	=over 4
1123		1565
…		…
1126	package cf::map;	1568	package cf::map;
1127		1569
1128	use Fcntl;	1570	use Fcntl;
1129	use Coro::AIO;	1571	use Coro::AIO;
1130		1572
		1573	use overload
		1574	'""' => \&as_string,
		1575	fallback => 1;
		1576
1131	our $MAX_RESET = 7200;	1577	our $MAX_RESET = 3600;
1132	our $DEFAULT_RESET = 3600;	1578	our $DEFAULT_RESET = 3000;
1133		1579
1134	sub generate_random_map {	1580	sub generate_random_map {
1135	my ($path, $rmp) = @_;	1581	my ($self, $rmp) = @_;
1136
1137	# mit "rum" bekleckern, nicht	1582	# mit "rum" bekleckern, nicht
1138	cf::map::_create_random_map	1583	$self->_create_random_map (
1139	$path,
1140	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1584	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1141	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1585	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1142	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1586	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1143	$rmp->{exit_on_final_map},	1587	$rmp->{exit_on_final_map},
1144	$rmp->{xsize}, $rmp->{ysize},	1588	$rmp->{xsize}, $rmp->{ysize},
1145	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1589	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1146	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1590	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1147	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1591	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1148	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1592	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1149	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1593	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1150	(cf::region::find $rmp->{region})	1594	(cf::region::find $rmp->{region}), $rmp->{custom}
		1595	)
		1596	}
		1597
		1598	=item cf::map->register ($regex, $prio)
		1599
		1600	Register a handler for the map path matching the given regex at the
		1601	givne priority (higher is better, built-in handlers have priority 0, the
		1602	default).
		1603
		1604	=cut
		1605
		1606	sub register {
		1607	my (undef, $regex, $prio) = @_;
		1608	my $pkg = caller;
		1609
		1610	no strict;
		1611	push @{"$pkg\::ISA"}, __PACKAGE__;
		1612
		1613	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1614	}
		1615
		1616	# also paths starting with '/'
		1617	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1618
		1619	sub thawer_merge {
		1620	my ($self, $merge) = @_;
		1621
		1622	# we have to keep some variables in memory intact
		1623	local $self->{path};
		1624	local $self->{load_path};
		1625
		1626	$self->SUPER::thawer_merge ($merge);
		1627	}
		1628
		1629	sub normalise {
		1630	my ($path, $base) = @_;
		1631
		1632	$path = "$path"; # make sure its a string
		1633
		1634	$path =~ s/\.map$//;
		1635
		1636	# map plan:
		1637	#
		1638	# /! non-realised random map exit (special hack!)
		1639	# {... are special paths that are not being touched
		1640	# ?xxx/... are special absolute paths
		1641	# ?random/... random maps
		1642	# /... normal maps
		1643	# ~user/... per-player map of a specific user
		1644
		1645	$path =~ s/$PATH_SEP/\//go;
		1646
		1647	# treat it as relative path if it starts with
		1648	# something that looks reasonable
		1649	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1650	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1651
		1652	$base =~ s{[^/]+/?$}{};
		1653	$path = "$base/$path";
		1654	}
		1655
		1656	for ($path) {
		1657	redo if s{//}{/};
		1658	redo if s{/\.?/}{/};
		1659	redo if s{/[^/]+/\.\./}{/};
		1660	}
		1661
		1662	$path
		1663	}
		1664
		1665	sub new_from_path {
		1666	my (undef, $path, $base) = @_;
		1667
		1668	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1669
		1670	$path = normalise $path, $base;
		1671
		1672	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1673	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1674	my $self = bless cf::map::new, $pkg;
		1675	$self->{path} = $path; $self->path ($path);
		1676	$self->init; # pass $1 etc.
		1677	return $self;
		1678	}
		1679	}
		1680
		1681	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1682	()
		1683	}
		1684
		1685	sub init {
		1686	my ($self) = @_;
		1687
		1688	$self
		1689	}
		1690
		1691	sub as_string {
		1692	my ($self) = @_;
		1693
		1694	"$self->{path}"
		1695	}
		1696
		1697	# the displayed name, this is a one way mapping
		1698	sub visible_name {
		1699	&as_string
		1700	}
		1701
		1702	# the original (read-only) location
		1703	sub load_path {
		1704	my ($self) = @_;
		1705
		1706	"$MAPDIR/$self->{path}.map"
		1707	}
		1708
		1709	# the temporary/swap location
		1710	sub save_path {
		1711	my ($self) = @_;
		1712
		1713	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1714	"$TMPDIR/$path.map"
		1715	}
		1716
		1717	# the unique path, undef == no special unique path
		1718	sub uniq_path {
		1719	my ($self) = @_;
		1720
		1721	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1722	"$UNIQUEDIR/$path"
1151	}	1723	}
1152		1724
1153	# and all this just because we cannot iterate over	1725	# and all this just because we cannot iterate over
1154	# all maps in C++...	1726	# all maps in C++...
1155	sub change_all_map_light {	1727	sub change_all_map_light {
…		…
1157		1729
1158	$_->change_map_light ($change)	1730	$_->change_map_light ($change)
1159	for grep $_->outdoor, values %cf::MAP;	1731	for grep $_->outdoor, values %cf::MAP;
1160	}	1732	}
1161		1733
		1734	sub decay_objects {
		1735	my ($self) = @_;
		1736
		1737	return if $self->{deny_reset};
		1738
		1739	$self->do_decay_objects;
		1740	}
		1741
		1742	sub unlink_save {
		1743	my ($self) = @_;
		1744
		1745	utf8::encode (my $save = $self->save_path);
		1746	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1747	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1748	}
		1749
1162	sub try_load_header($) {	1750	sub load_header_from($) {
1163	my ($path) = @_;	1751	my ($self, $path) = @_;
1164		1752
1165	utf8::encode $path;	1753	utf8::encode $path;
1166	aio_open $path, O_RDONLY, 0	1754	#aio_open $path, O_RDONLY, 0
		1755	# or return;
		1756
		1757	$self->_load_header ($path)
1167	or return;	1758	or return;
1168		1759
1169	my $map = cf::map::new	1760	$self->{load_path} = $path;
		1761
		1762	1
		1763	}
		1764
		1765	sub load_header_orig {
		1766	my ($self) = @_;
		1767
		1768	$self->load_header_from ($self->load_path)
		1769	}
		1770
		1771	sub load_header_temp {
		1772	my ($self) = @_;
		1773
		1774	$self->load_header_from ($self->save_path)
		1775	}
		1776
		1777	sub prepare_temp {
		1778	my ($self) = @_;
		1779
		1780	$self->last_access ((delete $self->{last_access})
		1781	|| $cf::RUNTIME); #d#
		1782	# safety
		1783	$self->{instantiate_time} = $cf::RUNTIME
		1784	if $self->{instantiate_time} > $cf::RUNTIME;
		1785	}
		1786
		1787	sub prepare_orig {
		1788	my ($self) = @_;
		1789
		1790	$self->{load_original} = 1;
		1791	$self->{instantiate_time} = $cf::RUNTIME;
		1792	$self->last_access ($cf::RUNTIME);
		1793	$self->instantiate;
		1794	}
		1795
		1796	sub load_header {
		1797	my ($self) = @_;
		1798
		1799	if ($self->load_header_temp) {
		1800	$self->prepare_temp;
		1801	} else {
		1802	$self->load_header_orig
1170	or return;	1803	or return;
		1804	$self->prepare_orig;
		1805	}
1171		1806
1172	$map->load_header ($path)	1807	$self->{deny_reset} = 1
1173	or return;	1808	if $self->no_reset;
1174		1809
1175	$map->{load_path} = $path;	1810	$self->default_region (cf::region::find_by_path $self->{path})
		1811	unless $self->default_region;
1176		1812
1177	$map	1813	1
1178	}	1814	}
1179		1815
		1816	sub find;
1180	sub find_map {	1817	sub find {
1181	my ($path, $origin) = @_;	1818	my ($path, $origin) = @_;
1182		1819
1183	#warn "find_map<$path,$origin>\n";#d#
1184
1185	$path = new cf::path $path, $origin && $origin->path;	1820	$path = normalise $path, $origin && $origin->path;
1186	my $key = $path->as_string;
1187		1821
1188	cf::lock_wait "map_find:$key";	1822	cf::lock_wait "map_find:$path";
1189		1823
1190	$cf::MAP{$key} || do {	1824	$cf::MAP{$path} || do {
1191	my $guard = cf::lock_acquire "map_find:$key";	1825	my $guard = cf::lock_acquire "map_find:$path";
1192		1826	my $map = new_from_path cf::map $path
1193	# do it the slow way
1194	my $map = try_load_header $path->save_path;
1195
1196	if ($map) {
1197	# safety
1198	$map->{instantiate_time} = $cf::RUNTIME
1199	if $map->{instantiate_time} > $cf::RUNTIME;
1200	} else {
1201	if (my $rmp = $path->random_map_params) {
1202	$map = generate_random_map $key, $rmp;
1203	} else {
1204	$map = try_load_header $path->load_path;
1205	}
1206
1207	$map or return;	1827	or return;
1208		1828
1209	$map->{load_original} = 1;
1210	$map->{instantiate_time} = $cf::RUNTIME;
1211	$map->instantiate;
1212
1213	# per-player maps become, after loading, normal maps
1214	$map->per_player (0) if $path->{user_rel};
1215	}
1216
1217	$map->path ($key);
1218	$map->{path} = $path;
1219	$map->{last_save} = $cf::RUNTIME;	1829	$map->{last_save} = $cf::RUNTIME;
1220	$map->last_access ($cf::RUNTIME);
1221		1830
1222	if ($map->should_reset) {	1831	$map->load_header
		1832	or return;
		1833
		1834	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1835	# doing this can freeze the server in a sync job, obviously
		1836	#$cf::WAIT_FOR_TICK->wait;
1223	$map->reset;	1837	$map->reset;
1224	undef $guard;	1838	undef $guard;
1225	$map = cf::map::find_map ($path)	1839	return find $path;
1226	or return;
1227	}	1840	}
1228		1841
1229	$cf::MAP{$key} = $map	1842	$cf::MAP{$path} = $map
1230	}	1843	}
1231	}	1844	}
		1845
		1846	sub pre_load { }
		1847	sub post_load { }
1232		1848
1233	sub load {	1849	sub load {
1234	my ($self) = @_;	1850	my ($self) = @_;
1235		1851
		1852	local $self->{deny_reset} = 1; # loading can take a long time
		1853
1236	my $path = $self->{path};	1854	my $path = $self->{path};
		1855
		1856	{
1237	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1857	my $guard = cf::lock_acquire "map_load:$path";
1238		1858
1239	return if $self->in_memory != cf::MAP_SWAPPED;	1859	return if $self->in_memory != cf::MAP_SWAPPED;
1240		1860
1241	$self->in_memory (cf::MAP_LOADING);	1861	$self->in_memory (cf::MAP_LOADING);
1242		1862
1243	$self->alloc;	1863	$self->alloc;
		1864
		1865	$self->pre_load;
		1866	Coro::cede;
		1867
1244	$self->load_objects ($self->{load_path}, 1)	1868	$self->_load_objects ($self->{load_path}, 1)
1245	or return;	1869	or return;
1246		1870
1247	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1871	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1248	if delete $self->{load_original};	1872	if delete $self->{load_original};
1249		1873
1250	if (my $uniq = $path->uniq_path) {	1874	if (my $uniq = $self->uniq_path) {
1251	utf8::encode $uniq;	1875	utf8::encode $uniq;
1252	if (aio_open $uniq, O_RDONLY, 0) {	1876	if (aio_open $uniq, O_RDONLY, 0) {
1253	$self->clear_unique_items;	1877	$self->clear_unique_items;
1254	$self->load_objects ($uniq, 0);	1878	$self->_load_objects ($uniq, 0);
1255	}	1879	}
1256	}	1880	}
1257		1881
		1882	Coro::cede;
1258	# now do the right thing for maps	1883	# now do the right thing for maps
1259	$self->link_multipart_objects;	1884	$self->link_multipart_objects;
1260
1261	if ($self->{path}->is_style_map) {
1262	$self->{deny_save} = 1;
1263	$self->{deny_reset} = 1;
1264	} else {
1265	$self->fix_auto_apply;
1266	$self->decay_objects;
1267	$self->update_buttons;
1268	$self->set_darkness_map;
1269	$self->difficulty ($self->estimate_difficulty)	1885	$self->difficulty ($self->estimate_difficulty)
1270	unless $self->difficulty;	1886	unless $self->difficulty;
		1887	Coro::cede;
		1888
		1889	unless ($self->{deny_activate}) {
		1890	$self->decay_objects;
		1891	$self->fix_auto_apply;
		1892	$self->update_buttons;
		1893	Coro::cede;
		1894	$self->set_darkness_map;
		1895	Coro::cede;
1271	$self->activate;	1896	$self->activate;
1272	}	1897	}
1273		1898
		1899	$self->{last_save} = $cf::RUNTIME;
		1900	$self->last_access ($cf::RUNTIME);
		1901
1274	$self->in_memory (cf::MAP_IN_MEMORY);	1902	$self->in_memory (cf::MAP_IN_MEMORY);
1275	}	1903	}
1276		1904
1277	sub load_map_sync {	1905	$self->post_load;
		1906	}
		1907
		1908	sub customise_for {
		1909	my ($self, $ob) = @_;
		1910
		1911	return find "~" . $ob->name . "/" . $self->{path}
		1912	if $self->per_player;
		1913
		1914	# return find "?party/" . $ob->name . "/" . $self->{path}
		1915	# if $self->per_party;
		1916
		1917	$self
		1918	}
		1919
		1920	# find and load all maps in the 3x3 area around a map
		1921	sub load_neighbours {
		1922	my ($map) = @_;
		1923
		1924	my @neigh; # diagonal neighbours
		1925
		1926	for (0 .. 3) {
		1927	my $neigh = $map->tile_path ($_)
		1928	or next;
		1929	$neigh = find $neigh, $map
		1930	or next;
		1931	$neigh->load;
		1932
		1933	push @neigh,
		1934	[$neigh->tile_path (($_ + 3) % 4), $neigh],
		1935	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1936	}
		1937
		1938	for (grep defined $_->[0], @neigh) {
		1939	my ($path, $origin) = @$_;
		1940	my $neigh = find $path, $origin
		1941	or next;
		1942	$neigh->load;
		1943	}
		1944	}
		1945
		1946	sub find_sync {
1278	my ($path, $origin) = @_;	1947	my ($path, $origin) = @_;
1279		1948
1280	#warn "load_map_sync<$path, $origin>\n";#d#	1949	cf::sync_job { find $path, $origin }
		1950	}
1281		1951
1282	cf::sync_job {	1952	sub do_load_sync {
1283	my $map = cf::map::find_map $path, $origin	1953	my ($map) = @_;
1284	or return;	1954
		1955	cf::sync_job { $map->load };
		1956	}
		1957
		1958	our %MAP_PREFETCH;
		1959	our $MAP_PREFETCHER = undef;
		1960
		1961	sub find_async {
		1962	my ($path, $origin) = @_;
		1963
		1964	$path = normalise $path, $origin && $origin->{path};
		1965
		1966	if (my $map = $cf::MAP{$path}) {
		1967	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1968	}
		1969
		1970	undef $MAP_PREFETCH{$path};
		1971	$MAP_PREFETCHER ||= cf::async {
		1972	while (%MAP_PREFETCH) {
		1973	for my $path (keys %MAP_PREFETCH) {
		1974	if (my $map = find $path) {
1285	$map->load;	1975	$map->load;
1286	$map	1976	}
		1977
		1978	delete $MAP_PREFETCH{$path};
		1979	}
		1980	}
		1981	undef $MAP_PREFETCHER;
1287	}	1982	};
		1983	$MAP_PREFETCHER->prio (6);
		1984
		1985	()
1288	}	1986	}
1289		1987
1290	sub save {	1988	sub save {
1291	my ($self) = @_;	1989	my ($self) = @_;
1292		1990
		1991	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1992
1293	$self->{last_save} = $cf::RUNTIME;	1993	$self->{last_save} = $cf::RUNTIME;
1294		1994
1295	return unless $self->dirty;	1995	return unless $self->dirty;
1296		1996
1297	my $save = $self->{path}->save_path; utf8::encode $save;	1997	my $save = $self->save_path; utf8::encode $save;
1298	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1998	my $uniq = $self->uniq_path; utf8::encode $uniq;
1299		1999
1300	$self->{load_path} = $save;	2000	$self->{load_path} = $save;
1301		2001
1302	return if $self->{deny_save};	2002	return if $self->{deny_save};
1303		2003
		2004	local $self->{last_access} = $self->last_access;#d#
		2005
		2006	cf::async {
		2007	$_->contr->save for $self->players;
		2008	};
		2009
1304	if ($uniq) {	2010	if ($uniq) {
1305	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2011	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1306	$self->save_objects ($uniq, cf::IO_UNIQUES);	2012	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1307	} else {	2013	} else {
1308	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2014	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1309	}	2015	}
1310	}	2016	}
1311		2017
1312	sub swap_out {	2018	sub swap_out {
1313	my ($self) = @_;	2019	my ($self) = @_;
		2020
		2021	# save first because save cedes
		2022	$self->save;
		2023
		2024	my $lock = cf::lock_acquire "map_data:" . $self->path;
1314		2025
1315	return if $self->players;	2026	return if $self->players;
1316	return if $self->in_memory != cf::MAP_IN_MEMORY;	2027	return if $self->in_memory != cf::MAP_IN_MEMORY;
1317	return if $self->{deny_save};	2028	return if $self->{deny_save};
1318		2029
1319	$self->save;
1320	$self->clear;	2030	$self->clear;
1321	$self->in_memory (cf::MAP_SWAPPED);	2031	$self->in_memory (cf::MAP_SWAPPED);
1322	}	2032	}
1323		2033
1324	sub reset_at {	2034	sub reset_at {
1325	my ($self) = @_;	2035	my ($self) = @_;
1326		2036
1327	# TODO: safety, remove and allow resettable per-player maps	2037	# TODO: safety, remove and allow resettable per-player maps
1328	return 1e99 if $self->{path}{user_rel};
1329	return 1e99 if $self->{deny_reset};	2038	return 1e99 if $self->{deny_reset};
1330		2039
1331	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2040	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1332	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2041	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1333		2042
…		…
1338	my ($self) = @_;	2047	my ($self) = @_;
1339		2048
1340	$self->reset_at <= $cf::RUNTIME	2049	$self->reset_at <= $cf::RUNTIME
1341	}	2050	}
1342		2051
1343	sub unlink_save {
1344	my ($self) = @_;
1345
1346	utf8::encode (my $save = $self->{path}->save_path);
1347	aioreq_pri 3; IO::AIO::aio_unlink $save;
1348	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1349	}
1350
1351	sub rename {
1352	my ($self, $new_path) = @_;
1353
1354	$self->unlink_save;
1355
1356	delete $cf::MAP{$self->path};
1357	$self->{path} = new cf::path $new_path;
1358	$self->path ($self->{path}->as_string);
1359	$cf::MAP{$self->path} = $self;
1360
1361	$self->save;
1362	}
1363
1364	sub reset {	2052	sub reset {
1365	my ($self) = @_;	2053	my ($self) = @_;
1366		2054
		2055	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2056
1367	return if $self->players;	2057	return if $self->players;
1368	return if $self->{path}{user_rel};#d#
1369		2058
1370	warn "resetting map ", $self->path;#d#	2059	warn "resetting map ", $self->path;
		2060
		2061	$self->in_memory (cf::MAP_SWAPPED);
		2062
		2063	# need to save uniques path
		2064	unless ($self->{deny_save}) {
		2065	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2066
		2067	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2068	if $uniq;
		2069	}
1371		2070
1372	delete $cf::MAP{$self->path};	2071	delete $cf::MAP{$self->path};
		2072
		2073	$self->clear;
1373		2074
1374	$_->clear_links_to ($self) for values %cf::MAP;	2075	$_->clear_links_to ($self) for values %cf::MAP;
1375		2076
1376	$self->unlink_save;	2077	$self->unlink_save;
1377	$self->destroy;	2078	$self->destroy;
…		…
1380	my $nuke_counter = "aaaa";	2081	my $nuke_counter = "aaaa";
1381		2082
1382	sub nuke {	2083	sub nuke {
1383	my ($self) = @_;	2084	my ($self) = @_;
1384		2085
		2086	delete $cf::MAP{$self->path};
		2087
		2088	$self->unlink_save;
		2089
		2090	bless $self, "cf::map";
		2091	delete $self->{deny_reset};
1385	$self->{deny_save} = 1;	2092	$self->{deny_save} = 1;
1386	$self->reset_timeout (1);	2093	$self->reset_timeout (1);
1387	$self->rename ("{nuke}/" . ($nuke_counter++));	2094	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2095
		2096	$cf::MAP{$self->path} = $self;
		2097
1388	$self->reset; # polite request, might not happen	2098	$self->reset; # polite request, might not happen
1389	}	2099	}
1390		2100
1391	sub customise_for {	2101	=item $maps = cf::map::tmp_maps
1392	my ($map, $ob) = @_;
1393		2102
1394	if ($map->per_player) {	2103	Returns an arrayref with all map paths of currently instantiated and saved
1395	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2104	maps. May block.
		2105
		2106	=cut
		2107
		2108	sub tmp_maps() {
1396	}	2109	[
1397		2110	map {
1398	$map	2111	utf8::decode $_;
		2112	/\.map$/
		2113	? normalise $_
		2114	: ()
		2115	} @{ aio_readdir $TMPDIR or [] }
		2116	]
1399	}	2117	}
1400		2118
1401	sub emergency_save {	2119	=item $maps = cf::map::random_maps
1402	local $cf::FREEZE = 1;
1403		2120
1404	warn "enter emergency map save\n";	2121	Returns an arrayref with all map paths of currently instantiated and saved
		2122	random maps. May block.
1405		2123
1406	cf::sync_job {	2124	=cut
1407	warn "begin emergency map save\n";
1408	$_->save for values %cf::MAP;
1409	};
1410		2125
1411	warn "end emergency map save\n";	2126	sub random_maps() {
		2127	[
		2128	map {
		2129	utf8::decode $_;
		2130	/\.map$/
		2131	? normalise "?random/$_"
		2132	: ()
		2133	} @{ aio_readdir $RANDOMDIR or [] }
		2134	]
		2135	}
		2136
		2137	=item cf::map::unique_maps
		2138
		2139	Returns an arrayref of paths of all shared maps that have
		2140	instantiated unique items. May block.
		2141
		2142	=cut
		2143
		2144	sub unique_maps() {
		2145	[
		2146	map {
		2147	utf8::decode $_;
		2148	/\.map$/
		2149	? normalise $_
		2150	: ()
		2151	} @{ aio_readdir $UNIQUEDIR or [] }
		2152	]
1412	}	2153	}
1413		2154
1414	package cf;	2155	package cf;
1415		2156
1416	=back	2157	=back
1417		2158
		2159	=head3 cf::object
		2160
		2161	=cut
		2162
		2163	package cf::object;
		2164
		2165	=over 4
		2166
		2167	=item $ob->inv_recursive
		2168
		2169	Returns the inventory of the object _and_ their inventories, recursively.
		2170
		2171	=cut
		2172
		2173	sub inv_recursive_;
		2174	sub inv_recursive_ {
		2175	map { $_, inv_recursive_ $_->inv } @_
		2176	}
		2177
		2178	sub inv_recursive {
		2179	inv_recursive_ inv $_[0]
		2180	}
		2181
		2182	package cf;
		2183
		2184	=back
1418		2185
1419	=head3 cf::object::player	2186	=head3 cf::object::player
1420		2187
1421	=over 4	2188	=over 4
1422		2189
…		…
1436		2203
1437	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2204	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1438		2205
1439	if ($self->{record_replies}) {	2206	if ($self->{record_replies}) {
1440	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2207	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2208
1441	} else {	2209	} else {
		2210	my $pl = $self->contr;
		2211
		2212	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2213	my $dialog = $pl->{npc_dialog};
		2214	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2215
		2216	} else {
1442	$msg = $npc->name . " says: $msg" if $npc;	2217	$msg = $npc->name . " says: $msg" if $npc;
1443	$self->message ($msg, $flags);	2218	$self->message ($msg, $flags);
		2219	}
1444	}	2220	}
		2221	}
		2222
		2223	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2224
		2225	=cut
		2226
		2227	sub cf::object::send_msg {
		2228	my $pl = shift->contr
		2229	or return;
		2230	$pl->send_msg (@_);
1445	}	2231	}
1446		2232
1447	=item $player_object->may ("access")	2233	=item $player_object->may ("access")
1448		2234
1449	Returns wether the given player is authorized to access resource "access"	2235	Returns wether the given player is authorized to access resource "access"
…		…
1462		2248
1463	=item $player_object->enter_link	2249	=item $player_object->enter_link
1464		2250
1465	Freezes the player and moves him/her to a special map (C<{link}>).	2251	Freezes the player and moves him/her to a special map (C<{link}>).
1466		2252
1467	The player should be reaosnably safe there for short amounts of time. You	2253	The player should be reasonably safe there for short amounts of time. You
1468	I<MUST> call C<leave_link> as soon as possible, though.	2254	I<MUST> call C<leave_link> as soon as possible, though.
1469		2255
		2256	Will never block.
		2257
1470	=item $player_object->leave_link ($map, $x, $y)	2258	=item $player_object->leave_link ($map, $x, $y)
1471		2259
1472	Moves the player out of the specila link map onto the given map. If the	2260	Moves the player out of the special C<{link}> map onto the specified
1473	map is not valid (or omitted), the player will be moved back to the	2261	map. If the map is not valid (or omitted), the player will be moved back
1474	location he/she was before the call to C<enter_link>, or, if that fails,	2262	to the location he/she was before the call to C<enter_link>, or, if that
1475	to the emergency map position.	2263	fails, to the emergency map position.
1476		2264
1477	Might block.	2265	Might block.
1478		2266
1479	=cut	2267	=cut
		2268
		2269	sub link_map {
		2270	unless ($LINK_MAP) {
		2271	$LINK_MAP = cf::map::find "{link}"
		2272	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2273	$LINK_MAP->load;
		2274	}
		2275
		2276	$LINK_MAP
		2277	}
1480		2278
1481	sub cf::object::player::enter_link {	2279	sub cf::object::player::enter_link {
1482	my ($self) = @_;	2280	my ($self) = @_;
1483		2281
1484	$self->deactivate_recursive;	2282	$self->deactivate_recursive;
1485		2283
1486	return if $self->map == $LINK_MAP;	2284	return if UNIVERSAL::isa $self->map, "ext::map_link";
1487		2285
1488	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2286	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1489	if $self->map;	2287	if $self->map && $self->map->{path} ne "{link}";
1490		2288
1491	$self->enter_map ($LINK_MAP, 20, 20);	2289	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1492	}	2290	}
1493		2291
1494	sub cf::object::player::leave_link {	2292	sub cf::object::player::leave_link {
1495	my ($self, $map, $x, $y) = @_;	2293	my ($self, $map, $x, $y) = @_;
		2294
		2295	return unless $self->contr->active;
1496		2296
1497	my $link_pos = delete $self->{_link_pos};	2297	my $link_pos = delete $self->{_link_pos};
1498		2298
1499	unless ($map) {	2299	unless ($map) {
1500	# restore original map position	2300	# restore original map position
1501	($map, $x, $y) = @{ $link_pos || [] };	2301	($map, $x, $y) = @{ $link_pos || [] };
1502	$map = cf::map::find_map $map;	2302	$map = cf::map::find $map;
1503		2303
1504	unless ($map) {	2304	unless ($map) {
1505	($map, $x, $y) = @$EMERGENCY_POSITION;	2305	($map, $x, $y) = @$EMERGENCY_POSITION;
1506	$map = cf::map::find_map $map	2306	$map = cf::map::find $map
1507	or die "FATAL: cannot load emergency map\n";	2307	or die "FATAL: cannot load emergency map\n";
1508	}	2308	}
1509	}	2309	}
1510		2310
1511	($x, $y) = (-1, -1)	2311	($x, $y) = (-1, -1)
…		…
1514	# use -1 or undef as default coordinates, not 0, 0	2314	# use -1 or undef as default coordinates, not 0, 0
1515	($x, $y) = ($map->enter_x, $map->enter_y)	2315	($x, $y) = ($map->enter_x, $map->enter_y)
1516	if $x <=0 && $y <= 0;	2316	if $x <=0 && $y <= 0;
1517		2317
1518	$map->load;	2318	$map->load;
		2319	$map->load_neighbours;
1519		2320
		2321	return unless $self->contr->active;
1520	$self->activate_recursive;	2322	$self->activate_recursive;
		2323
		2324	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1521	$self->enter_map ($map, $x, $y);	2325	$self->enter_map ($map, $x, $y);
1522	}	2326	}
1523		2327
1524	cf::player->attach (	2328	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1525	on_logout => sub {
1526	my ($pl) = @_;
1527		2329
1528	# abort map switching before logout	2330	Moves the player to the given map-path and coordinates by first freezing
1529	if ($pl->ob->{_link_pos}) {	2331	her, loading and preparing them map, calling the provided $check callback
1530	cf::sync_job {	2332	that has to return the map if sucecssful, and then unfreezes the player on
1531	$pl->ob->leave_link	2333	the new (success) or old (failed) map position. In either case, $done will
1532	};	2334	be called at the end of this process.
1533	}
1534	},
1535	on_login => sub {
1536	my ($pl) = @_;
1537		2335
1538	# try to abort aborted map switching on player login :)
1539	# should happen only on crashes
1540	if ($pl->ob->{_link_pos}) {
1541	$pl->ob->enter_link;
1542	Coro::async {
1543	# we need this sleep as the login has a concurrent enter_exit running
1544	# and this sleep increases chances of the player not ending up in scorn
1545	Coro::Timer::sleep 1;
1546	$pl->ob->leave_link;
1547	};
1548	}
1549	},
1550	);
1551
1552	=item $player_object->goto_map ($path, $x, $y)
1553
1554	=cut	2336	=cut
1555		2337
		2338	our $GOTOGEN;
		2339
1556	sub cf::object::player::goto_map {	2340	sub cf::object::player::goto {
1557	my ($self, $path, $x, $y) = @_;	2341	my ($self, $path, $x, $y, $check, $done) = @_;
		2342
		2343	# do generation counting so two concurrent goto's will be executed in-order
		2344	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1558		2345
1559	$self->enter_link;	2346	$self->enter_link;
1560		2347
1561	(Coro::async {	2348	(async {
1562	$path = new cf::path $path;	2349	my $map = eval {
1563
1564	my $map = cf::map::find_map $path->as_string;	2350	my $map = cf::map::find $path;
		2351
		2352	if ($map) {
1565	$map = $map->customise_for ($self) if $map;	2353	$map = $map->customise_for ($self);
1566		2354	$map = $check->($map) if $check && $map;
1567	# warn "entering ", $map->path, " at ($x, $y)\n"	2355	} else {
1568	# if $map;
1569
1570	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2356	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2357	}
1571		2358
		2359	$map
		2360	};
		2361
		2362	if ($@) {
		2363	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2364	LOG llevError | logBacktrace, Carp::longmess $@;
		2365	}
		2366
		2367	if ($gen == $self->{_goto_generation}) {
		2368	delete $self->{_goto_generation};
1572	$self->leave_link ($map, $x, $y);	2369	$self->leave_link ($map, $x, $y);
		2370	}
		2371
		2372	$done->() if $done;
1573	})->prio (1);	2373	})->prio (1);
1574	}	2374	}
1575		2375
1576	=item $player_object->enter_exit ($exit_object)	2376	=item $player_object->enter_exit ($exit_object)
1577		2377
…		…
1579		2379
1580	sub parse_random_map_params {	2380	sub parse_random_map_params {
1581	my ($spec) = @_;	2381	my ($spec) = @_;
1582		2382
1583	my $rmp = { # defaults	2383	my $rmp = { # defaults
1584	xsize => 10,	2384	xsize => (cf::rndm 15, 40),
1585	ysize => 10,	2385	ysize => (cf::rndm 15, 40),
		2386	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2387	#layout => string,
1586	};	2388	};
1587		2389
1588	for (split /\n/, $spec) {	2390	for (split /\n/, $spec) {
1589	my ($k, $v) = split /\s+/, $_, 2;	2391	my ($k, $v) = split /\s+/, $_, 2;
1590		2392
…		…
1594	$rmp	2396	$rmp
1595	}	2397	}
1596		2398
1597	sub prepare_random_map {	2399	sub prepare_random_map {
1598	my ($exit) = @_;	2400	my ($exit) = @_;
		2401
		2402	my $guard = cf::lock_acquire "exit_prepare:$exit";
1599		2403
1600	# all this does is basically replace the /! path by	2404	# all this does is basically replace the /! path by
1601	# a new random map path (?random/...) with a seed	2405	# a new random map path (?random/...) with a seed
1602	# that depends on the exit object	2406	# that depends on the exit object
1603		2407
1604	my $rmp = parse_random_map_params $exit->msg;	2408	my $rmp = parse_random_map_params $exit->msg;
1605		2409
1606	if ($exit->map) {	2410	if ($exit->map) {
1607	$rmp->{region} = $exit->map->region_name;	2411	$rmp->{region} = $exit->region->name;
1608	$rmp->{origin_map} = $exit->map->path;	2412	$rmp->{origin_map} = $exit->map->path;
1609	$rmp->{origin_x} = $exit->x;	2413	$rmp->{origin_x} = $exit->x;
1610	$rmp->{origin_y} = $exit->y;	2414	$rmp->{origin_y} = $exit->y;
1611	}	2415	}
1612		2416
1613	$rmp->{random_seed} ||= $exit->random_seed;	2417	$rmp->{random_seed} ||= $exit->random_seed;
1614		2418
1615	my $data = cf::to_json $rmp;	2419	my $data = cf::to_json $rmp;
1616	my $md5 = Digest::MD5::md5_hex $data;	2420	my $md5 = Digest::MD5::md5_hex $data;
		2421	my $meta = "$RANDOMDIR/$md5.meta";
1617		2422
1618	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2423	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1619	aio_write $fh, 0, (length $data), $data, 0;	2424	aio_write $fh, 0, (length $data), $data, 0;
		2425	undef $fh;
		2426	aio_rename "$meta~", $meta;
1620		2427
1621	$exit->slaying ("?random/$md5");	2428	$exit->slaying ("?random/$md5");
1622	$exit->msg (undef);	2429	$exit->msg (undef);
1623	}	2430	}
1624	}	2431	}
…		…
1626	sub cf::object::player::enter_exit {	2433	sub cf::object::player::enter_exit {
1627	my ($self, $exit) = @_;	2434	my ($self, $exit) = @_;
1628		2435
1629	return unless $self->type == cf::PLAYER;	2436	return unless $self->type == cf::PLAYER;
1630		2437
		2438	if ($exit->slaying eq "/!") {
		2439	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2440	# the problem is that $exit might not survive long enough
		2441	# so it needs to be done right now, right here
		2442	cf::sync_job { prepare_random_map $exit };
		2443	}
		2444
		2445	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2446	my $hp = $exit->stats->hp;
		2447	my $sp = $exit->stats->sp;
		2448
1631	$self->enter_link;	2449	$self->enter_link;
1632		2450
		2451	# if exit is damned, update players death & WoR home-position
		2452	$self->contr->savebed ($slaying, $hp, $sp)
		2453	if $exit->flag (FLAG_DAMNED);
		2454
1633	(Coro::async {	2455	(async {
		2456	$self->deactivate_recursive; # just to be sure
1634	unless (eval {	2457	unless (eval {
1635		2458	$self->goto ($slaying, $hp, $sp);
1636	prepare_random_map $exit
1637	if $exit->slaying eq "/!";
1638
1639	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1640	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1641		2459
1642	1;	2460	1;
1643	}) {	2461	}) {
1644	$self->message ("Something went wrong deep within the crossfire server. "	2462	$self->message ("Something went wrong deep within the crossfire server. "
1645	. "I'll try to bring you back to the map you were before. "	2463	. "I'll try to bring you back to the map you were before. "
1646	. "Please report this to the dungeon master",	2464	. "Please report this to the dungeon master!",
1647	cf::NDI_UNIQUE | cf::NDI_RED);	2465	cf::NDI_UNIQUE | cf::NDI_RED);
1648		2466
1649	warn "ERROR in enter_exit: $@";	2467	warn "ERROR in enter_exit: $@";
1650	$self->leave_link;	2468	$self->leave_link;
1651	}	2469	}
1652	})->prio (1);	2470	})->prio (1);
…		…
1665		2483
1666	sub cf::client::send_drawinfo {	2484	sub cf::client::send_drawinfo {
1667	my ($self, $text, $flags) = @_;	2485	my ($self, $text, $flags) = @_;
1668		2486
1669	utf8::encode $text;	2487	utf8::encode $text;
1670	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2488	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1671	}	2489	}
1672		2490
		2491	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2492
		2493	Send a drawinfo or msg packet to the client, formatting the msg for the
		2494	client if neccessary. C<$type> should be a string identifying the type of
		2495	the message, with C<log> being the default. If C<$color> is negative, suppress
		2496	the message unless the client supports the msg packet.
		2497
		2498	=cut
		2499
		2500	sub cf::client::send_msg {
		2501	my ($self, $channel, $msg, $color, @extra) = @_;
		2502
		2503	$msg = $self->pl->expand_cfpod ($msg);
		2504
		2505	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2506
		2507	if (ref $channel) {
		2508	# send meta info to client, if not yet sent
		2509	unless (exists $self->{channel}{$channel->{id}}) {
		2510	$self->{channel}{$channel->{id}} = $channel;
		2511	$self->ext_msg (channel_info => $channel);
		2512	}
		2513
		2514	$channel = $channel->{id};
		2515	}
		2516
		2517	return unless @extra || length $msg;
		2518
		2519	if ($self->can_msg) {
		2520	# default colour, mask it out
		2521	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2522	if $color & cf::NDI_DEF;
		2523
		2524	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2525	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2526	} else {
		2527	if ($color >= 0) {
		2528	# replace some tags by gcfclient-compatible ones
		2529	for ($msg) {
		2530	1 while
		2531	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2532	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2533	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2534	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2535	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2536	}
		2537
		2538	$color &= cf::NDI_COLOR_MASK;
		2539
		2540	utf8::encode $msg;
		2541
		2542	if (0 && $msg =~ /\[/) {
		2543	# COMMAND/INFO
		2544	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2545	} else {
		2546	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2547	$self->send_packet ("drawinfo $color $msg")
		2548	}
		2549	}
		2550	}
		2551	}
		2552
		2553	=item $client->ext_msg ($type, @msg)
		2554
		2555	Sends an ext event to the client.
		2556
		2557	=cut
		2558
		2559	sub cf::client::ext_msg($$@) {
		2560	my ($self, $type, @msg) = @_;
		2561
		2562	my $extcmd = $self->extcmd;
		2563
		2564	if ($extcmd == 2) {
		2565	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2566	} elsif ($extcmd == 1) { # TODO: remove
		2567	push @msg, msgtype => "event_$type";
		2568	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2569	}
		2570	}
1673		2571
1674	=item $success = $client->query ($flags, "text", \&cb)	2572	=item $success = $client->query ($flags, "text", \&cb)
1675		2573
1676	Queues a query to the client, calling the given callback with	2574	Queues a query to the client, calling the given callback with
1677	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2575	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1678	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2576	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1679		2577
1680	Queries can fail, so check the return code. Or don't, as queries will become	2578	Queries can fail, so check the return code. Or don't, as queries will
1681	reliable at some point in the future.	2579	become reliable at some point in the future.
1682		2580
1683	=cut	2581	=cut
1684		2582
1685	sub cf::client::query {	2583	sub cf::client::query {
1686	my ($self, $flags, $text, $cb) = @_;	2584	my ($self, $flags, $text, $cb) = @_;
…		…
1694	utf8::encode $text;	2592	utf8::encode $text;
1695	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2593	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1696		2594
1697	$self->send_packet ($self->{query_queue}[0][0])	2595	$self->send_packet ($self->{query_queue}[0][0])
1698	if @{ $self->{query_queue} } == 1;	2596	if @{ $self->{query_queue} } == 1;
		2597
		2598	1
1699	}	2599	}
1700		2600
1701	cf::client->attach (	2601	cf::client->attach (
		2602	on_connect => sub {
		2603	my ($ns) = @_;
		2604
		2605	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2606	},
1702	on_reply => sub {	2607	on_reply => sub {
1703	my ($ns, $msg) = @_;	2608	my ($ns, $msg) = @_;
1704		2609
1705	# this weird shuffling is so that direct followup queries	2610	# this weird shuffling is so that direct followup queries
1706	# get handled first	2611	# get handled first
1707	my $queue = delete $ns->{query_queue};	2612	my $queue = delete $ns->{query_queue}
		2613	or return; # be conservative, not sure how that can happen, but we saw a crash here
1708		2614
1709	(shift @$queue)->[1]->($msg);	2615	(shift @$queue)->[1]->($msg);
		2616	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1710		2617
1711	push @{ $ns->{query_queue} }, @$queue;	2618	push @{ $ns->{query_queue} }, @$queue;
1712		2619
1713	if (@{ $ns->{query_queue} } == @$queue) {	2620	if (@{ $ns->{query_queue} } == @$queue) {
1714	if (@$queue) {	2621	if (@$queue) {
…		…
1716	} else {	2623	} else {
1717	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2624	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1718	}	2625	}
1719	}	2626	}
1720	},	2627	},
		2628	on_exticmd => sub {
		2629	my ($ns, $buf) = @_;
		2630
		2631	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2632
		2633	if (ref $msg) {
		2634	my ($type, $reply, @payload) =
		2635	"ARRAY" eq ref $msg
		2636	? @$msg
		2637	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2638
		2639	if (my $cb = $EXTICMD{$type}) {
		2640	my @reply = $cb->($ns, @payload);
		2641
		2642	$ns->ext_reply ($reply, @reply)
		2643	if $reply;
		2644	}
		2645	} else {
		2646	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2647	}
		2648
		2649	cf::override;
		2650	},
1721	);	2651	);
1722		2652
1723	=item $client->coro (\&cb)	2653	=item $client->async (\&cb)
1724		2654
1725	Create a new coroutine, running the specified callback. The coroutine will	2655	Create a new coroutine, running the specified callback. The coroutine will
1726	be automatically cancelled when the client gets destroyed (e.g. on logout,	2656	be automatically cancelled when the client gets destroyed (e.g. on logout,
1727	or loss of connection).	2657	or loss of connection).
1728		2658
1729	=cut	2659	=cut
1730		2660
1731	sub cf::client::coro {	2661	sub cf::client::async {
1732	my ($self, $cb) = @_;	2662	my ($self, $cb) = @_;
1733		2663
1734	my $coro; $coro = async {	2664	my $coro = &Coro::async ($cb);
1735	eval {
1736	$cb->();
1737	};
1738	warn $@ if $@;
1739	};
1740		2665
1741	$coro->on_destroy (sub {	2666	$coro->on_destroy (sub {
1742	delete $self->{_coro}{$coro+0};	2667	delete $self->{_coro}{$coro+0};
1743	});	2668	});
1744		2669
…		…
1771	our $safe = new Safe "safe";	2696	our $safe = new Safe "safe";
1772	our $safe_hole = new Safe::Hole;	2697	our $safe_hole = new Safe::Hole;
1773		2698
1774	$SIG{FPE} = 'IGNORE';	2699	$SIG{FPE} = 'IGNORE';
1775		2700
1776	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2701	$safe->permit_only (Opcode::opset qw(
		2702	:base_core :base_mem :base_orig :base_math
		2703	grepstart grepwhile mapstart mapwhile
		2704	sort time
		2705	));
1777		2706
1778	# here we export the classes and methods available to script code	2707	# here we export the classes and methods available to script code
1779		2708
1780	=pod	2709	=pod
1781		2710
1782	The following fucntions and emthods are available within a safe environment:	2711	The following functions and methods are available within a safe environment:
1783		2712
1784	cf::object contr pay_amount pay_player map	2713	cf::object
		2714	contr pay_amount pay_player map x y force_find force_add
		2715	insert remove name archname title slaying race
		2716
1785	cf::object::player player	2717	cf::object::player
1786	cf::player peaceful	2718	player
1787	cf::map trigger	2719
		2720	cf::player
		2721	peaceful
		2722
		2723	cf::map
		2724	trigger
1788		2725
1789	=cut	2726	=cut
1790		2727
1791	for (	2728	for (
1792	["cf::object" => qw(contr pay_amount pay_player map)],	2729	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2730	insert remove inv name archname title slaying race)],
1793	["cf::object::player" => qw(player)],	2731	["cf::object::player" => qw(player)],
1794	["cf::player" => qw(peaceful)],	2732	["cf::player" => qw(peaceful)],
1795	["cf::map" => qw(trigger)],	2733	["cf::map" => qw(trigger)],
1796	) {	2734	) {
1797	no strict 'refs';	2735	no strict 'refs';
…		…
1868	=back	2806	=back
1869		2807
1870	=cut	2808	=cut
1871		2809
1872	#############################################################################	2810	#############################################################################
		2811	# the server's init and main functions
1873		2812
1874	=head2 EXTENSION DATABASE SUPPORT	2813	sub load_facedata($) {
		2814	my ($path) = @_;
1875		2815
1876	Crossfire maintains a very simple database for extension use. It can	2816	my $enc = JSON::XS->new->utf8->canonical;
1877	currently store anything that can be serialised using Storable, which
1878	excludes objects.
1879		2817
1880	The parameter C<$family> should best start with the name of the extension	2818	warn "loading facedata from $path\n";
1881	using it, it should be unique.
1882		2819
1883	=over 4	2820	my $facedata;
		2821	0 < aio_load $path, $facedata
		2822	or die "$path: $!";
1884		2823
1885	=item $hashref = cf::db_get $family	2824	$facedata = Coro::Storable::thaw $facedata;
1886		2825
1887	Return a hashref for use by the extension C<$family>, which can be	2826	$facedata->{version} == 2
1888	modified. After modifications, you have to call C<cf::db_dirty> or	2827	or cf::cleanup "$path: version mismatch, cannot proceed.";
1889	C<cf::db_sync>.
1890		2828
1891	=item $value = cf::db_get $family => $key	2829	# patch in the exptable
1892		2830	$facedata->{resource}{"res/exp_table"} = {
1893	Returns a single value from the database	2831	type => FT_RSRC,
1894		2832	data => $enc->encode ([map cf::level_to_min_exp $_, 0 .. cf::settings->max_level]),
1895	=item cf::db_put $family => $hashref
1896
1897	Stores the given family hashref into the database. Updates are delayed, if
1898	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1899
1900	=item cf::db_put $family => $key => $value
1901
1902	Stores the given C<$value> in the family hash. Updates are delayed, if you
1903	want the data to be synced to disk immediately, use C<cf::db_sync>.
1904
1905	=item cf::db_dirty
1906
1907	Marks the database as dirty, to be updated at a later time.
1908
1909	=item cf::db_sync
1910
1911	Immediately write the database to disk I<if it is dirty>.
1912
1913	=cut
1914
1915	our $DB;
1916
1917	{
1918	my $path = cf::localdir . "/database.pst";
1919
1920	sub db_load() {
1921	$DB = stat $path ? Storable::retrieve $path : { };
1922	}
1923
1924	my $pid;
1925
1926	sub db_save() {
1927	waitpid $pid, 0 if $pid;
1928	if (0 == ($pid = fork)) {
1929	$DB->{_meta}{version} = 1;
1930	Storable::nstore $DB, "$path~";
1931	rename "$path~", $path;
1932	cf::_exit 0 if defined $pid;
1933	}
1934	}
1935
1936	my $dirty;
1937
1938	sub db_sync() {
1939	db_save if $dirty;
1940	undef $dirty;
1941	}
1942
1943	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1944	db_sync;
1945	});	2833	};
		2834	cf::cede_to_tick;
1946		2835
1947	sub db_dirty() {
1948	$dirty = 1;
1949	$idle->start;
1950	}	2836	{
		2837	my $faces = $facedata->{faceinfo};
1951		2838
1952	sub db_get($;$) {	2839	while (my ($face, $info) = each %$faces) {
1953	@_ >= 2	2840	my $idx = (cf::face::find $face) || cf::face::alloc $face;
1954	? $DB->{$_[0]}{$_[1]}	2841	cf::face::set_visibility $idx, $info->{visibility};
1955	: ($DB->{$_[0]} ||= { })	2842	cf::face::set_magicmap $idx, $info->{magicmap};
1956	}	2843	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
		2844	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
1957		2845
1958	sub db_put($$;$) {	2846	cf::cede_to_tick;
1959	if (@_ >= 3) {
1960	$DB->{$_[0]}{$_[1]} = $_[2];
1961	} else {
1962	$DB->{$_[0]} = $_[1];
1963	}
1964	db_dirty;
1965	}
1966
1967	cf::global->attach (
1968	prio => 10000,
1969	on_cleanup => sub {
1970	db_sync;
1971	},	2847	}
1972	);
1973	}
1974		2848
1975	#############################################################################	2849	while (my ($face, $info) = each %$faces) {
1976	# the server's main()	2850	next unless $info->{smooth};
		2851	my $idx = cf::face::find $face
		2852	or next;
		2853	if (my $smooth = cf::face::find $info->{smooth}) {
		2854	cf::face::set_smooth $idx, $smooth;
		2855	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2856	} else {
		2857	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2858	}
		2859
		2860	cf::cede_to_tick;
		2861	}
		2862	}
		2863
		2864	{
		2865	my $anims = $facedata->{animinfo};
		2866
		2867	while (my ($anim, $info) = each %$anims) {
		2868	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2869	cf::cede_to_tick;
		2870	}
		2871
		2872	cf::anim::invalidate_all; # d'oh
		2873	}
		2874
		2875	{
		2876	# TODO: for gcfclient pleasure, we should give resources
		2877	# that gcfclient doesn't grok a >10000 face index.
		2878	my $res = $facedata->{resource};
		2879
		2880	my $soundconf = delete $res->{"res/sound.conf"};
		2881
		2882	while (my ($name, $info) = each %$res) {
		2883	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2884	my $data;
		2885
		2886	if ($info->{type} & 1) {
		2887	# prepend meta info
		2888
		2889	my $meta = $enc->encode ({
		2890	name => $name,
		2891	%{ $info->{meta} || {} },
		2892	});
		2893
		2894	$data = pack "(w/a*)*", $meta, $info->{data};
		2895	}
		2896
		2897	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		2898	cf::face::set_type $idx, $info->{type};
		2899
		2900	cf::cede_to_tick;
		2901	}
		2902
		2903	if ($soundconf) {
		2904	$soundconf = $enc->decode (delete $soundconf->{data});
		2905
		2906	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		2907	my $sound = $soundconf->{compat}[$_]
		2908	or next;
		2909
		2910	my $face = cf::face::find "sound/$sound->[1]";
		2911	cf::sound::set $sound->[0] => $face;
		2912	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		2913	}
		2914
		2915	while (my ($k, $v) = each %{$soundconf->{event}}) {
		2916	my $face = cf::face::find "sound/$v";
		2917	cf::sound::set $k => $face;
		2918	}
		2919	}
		2920	}
		2921
		2922	1
		2923	}
		2924
		2925	register_exticmd fx_want => sub {
		2926	my ($ns, $want) = @_;
		2927
		2928	while (my ($k, $v) = each %$want) {
		2929	$ns->fx_want ($k, $v);
		2930	}
		2931	};
		2932
		2933	sub reload_regions {
		2934	load_resource_file "$MAPDIR/regions"
		2935	or die "unable to load regions file\n";
		2936
		2937	for (cf::region::list) {
		2938	$_->{match} = qr/$_->{match}/
		2939	if exists $_->{match};
		2940	}
		2941	}
		2942
		2943	sub reload_facedata {
		2944	load_facedata "$DATADIR/facedata"
		2945	or die "unable to load facedata\n";
		2946	}
		2947
		2948	sub reload_archetypes {
		2949	load_resource_file "$DATADIR/archetypes"
		2950	or die "unable to load archetypes\n";
		2951	#d# NEED to laod twice to resolve forward references
		2952	# this really needs to be done in an extra post-pass
		2953	# (which needs to be synchronous, so solve it differently)
		2954	load_resource_file "$DATADIR/archetypes"
		2955	or die "unable to load archetypes\n";
		2956	}
		2957
		2958	sub reload_treasures {
		2959	load_resource_file "$DATADIR/treasures"
		2960	or die "unable to load treasurelists\n";
		2961	}
		2962
		2963	sub reload_resources {
		2964	warn "reloading resource files...\n";
		2965
		2966	reload_regions;
		2967	reload_facedata;
		2968	#reload_archetypes;#d#
		2969	reload_archetypes;
		2970	reload_treasures;
		2971
		2972	warn "finished reloading resource files\n";
		2973	}
		2974
		2975	sub init {
		2976	reload_resources;
		2977	}
1977		2978
1978	sub cfg_load {	2979	sub cfg_load {
1979	open my $fh, "<:utf8", cf::confdir . "/config"	2980	open my $fh, "<:utf8", "$CONFDIR/config"
1980	or return;	2981	or return;
1981		2982
1982	local $/;	2983	local $/;
1983	*CFG = YAML::Syck::Load <$fh>;	2984	*CFG = YAML::Syck::Load <$fh>;
		2985
		2986	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
		2987
		2988	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2989	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2990
		2991	if (exists $CFG{mlockall}) {
		2992	eval {
		2993	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
		2994	and die "WARNING: m(un)lockall failed: $!\n";
		2995	};
		2996	warn $@ if $@;
		2997	}
1984	}	2998	}
1985		2999
1986	sub main {	3000	sub main {
1987	# we must not ever block the main coroutine	3001	# we must not ever block the main coroutine
1988	local $Coro::idle = sub {	3002	local $Coro::idle = sub {
1989	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3003	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
1990	(Coro::unblock_sub {	3004	(async {
1991	Event::one_event;	3005	Event::one_event;
1992	})->();	3006	})->prio (Coro::PRIO_MAX);
1993	};	3007	};
1994		3008
1995	cfg_load;	3009	cfg_load;
1996	db_load;	3010	db_init;
1997	load_extensions;	3011	load_extensions;
		3012
		3013	$TICK_WATCHER->start;
1998	Event::loop;	3014	Event::loop;
1999	}	3015	}
2000		3016
2001	#############################################################################	3017	#############################################################################
2002	# initialisation	3018	# initialisation and cleanup
2003		3019
		3020	# install some emergency cleanup handlers
		3021	BEGIN {
		3022	for my $signal (qw(INT HUP TERM)) {
		3023	Event->signal (
		3024	reentrant => 0,
		3025	data => WF_AUTOCANCEL,
		3026	signal => $signal,
		3027	prio => 0,
		3028	cb => sub {
		3029	cf::cleanup "SIG$signal";
		3030	},
		3031	);
		3032	}
		3033	}
		3034
		3035	sub write_runtime {
		3036	my $runtime = "$LOCALDIR/runtime";
		3037
		3038	# first touch the runtime file to show we are still running:
		3039	# the fsync below can take a very very long time.
		3040
		3041	IO::AIO::aio_utime $runtime, undef, undef;
		3042
		3043	my $guard = cf::lock_acquire "write_runtime";
		3044
		3045	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3046	or return;
		3047
		3048	my $value = $cf::RUNTIME + 90 + 10;
		3049	# 10 is the runtime save interval, for a monotonic clock
		3050	# 60 allows for the watchdog to kill the server.
		3051
		3052	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3053	and return;
		3054
		3055	# always fsync - this file is important
		3056	aio_fsync $fh
		3057	and return;
		3058
		3059	# touch it again to show we are up-to-date
		3060	aio_utime $fh, undef, undef;
		3061
		3062	close $fh
		3063	or return;
		3064
		3065	aio_rename "$runtime~", $runtime
		3066	and return;
		3067
		3068	warn "runtime file written.\n";
		3069
		3070	1
		3071	}
		3072
		3073	sub emergency_save() {
		3074	my $freeze_guard = cf::freeze_mainloop;
		3075
		3076	warn "enter emergency perl save\n";
		3077
		3078	cf::sync_job {
		3079	# use a peculiar iteration method to avoid tripping on perl
		3080	# refcount bugs in for. also avoids problems with players
		3081	# and maps saved/destroyed asynchronously.
		3082	warn "begin emergency player save\n";
		3083	for my $login (keys %cf::PLAYER) {
		3084	my $pl = $cf::PLAYER{$login} or next;
		3085	$pl->valid or next;
		3086	$pl->save;
		3087	}
		3088	warn "end emergency player save\n";
		3089
		3090	warn "begin emergency map save\n";
		3091	for my $path (keys %cf::MAP) {
		3092	my $map = $cf::MAP{$path} or next;
		3093	$map->valid or next;
		3094	$map->save;
		3095	}
		3096	warn "end emergency map save\n";
		3097
		3098	warn "begin emergency database checkpoint\n";
		3099	BDB::db_env_txn_checkpoint $DB_ENV;
		3100	warn "end emergency database checkpoint\n";
		3101	};
		3102
		3103	warn "leave emergency perl save\n";
		3104	}
		3105
		3106	sub post_cleanup {
		3107	my ($make_core) = @_;
		3108
		3109	warn Carp::longmess "post_cleanup backtrace"
		3110	if $make_core;
		3111	}
		3112
2004	sub reload() {	3113	sub do_reload_perl() {
2005	# can/must only be called in main	3114	# can/must only be called in main
2006	if ($Coro::current != $Coro::main) {	3115	if ($Coro::current != $Coro::main) {
2007	warn "can only reload from main coroutine\n";	3116	warn "can only reload from main coroutine";
2008	return;	3117	return;
2009	}	3118	}
2010		3119
2011	warn "reloading...";	3120	warn "reloading...";
2012		3121
2013	local $FREEZE = 1;	3122	warn "entering sync_job";
		3123
		3124	cf::sync_job {
		3125	cf::write_runtime; # external watchdog should not bark
2014	cf::emergency_save;	3126	cf::emergency_save;
		3127	cf::write_runtime; # external watchdog should not bark
2015		3128
2016	eval {	3129	warn "syncing database to disk";
		3130	BDB::db_env_txn_checkpoint $DB_ENV;
		3131
2017	# if anything goes wrong in here, we should simply crash as we already saved	3132	# if anything goes wrong in here, we should simply crash as we already saved
2018		3133
2019	# cancel all watchers	3134	warn "cancelling all WF_AUTOCANCEL watchers";
2020	for (Event::all_watchers) {	3135	for (Event::all_watchers) {
2021	$_->cancel if $_->data & WF_AUTOCANCEL;	3136	$_->cancel if $_->data & WF_AUTOCANCEL;
2022	}	3137	}
2023		3138
		3139	warn "flushing outstanding aio requests";
		3140	for (;;) {
		3141	BDB::flush;
		3142	IO::AIO::flush;
		3143	Coro::cede;
		3144	last unless IO::AIO::nreqs || BDB::nreqs;
		3145	warn "iterate...";
		3146	}
		3147
		3148	++$RELOAD;
		3149
2024	# cancel all extension coros	3150	warn "cancelling all extension coros";
2025	$_->cancel for values %EXT_CORO;	3151	$_->cancel for values %EXT_CORO;
2026	%EXT_CORO = ();	3152	%EXT_CORO = ();
2027		3153
2028	# unload all extensions	3154	warn "removing commands";
2029	for (@exts) {	3155	%COMMAND = ();
		3156
		3157	warn "removing ext/exti commands";
		3158	%EXTCMD = ();
		3159	%EXTICMD = ();
		3160
		3161	warn "unloading/nuking all extensions";
		3162	for my $pkg (@EXTS) {
2030	warn "unloading <$_>";	3163	warn "... unloading $pkg";
2031	unload_extension $_;	3164
		3165	if (my $cb = $pkg->can ("unload")) {
		3166	eval {
		3167	$cb->($pkg);
		3168	1
		3169	} or warn "$pkg unloaded, but with errors: $@";
2032	}	3170	}
2033		3171
		3172	warn "... nuking $pkg";
		3173	Symbol::delete_package $pkg;
		3174	}
		3175
2034	# unload all modules loaded from $LIBDIR	3176	warn "unloading all perl modules loaded from $LIBDIR";
2035	while (my ($k, $v) = each %INC) {	3177	while (my ($k, $v) = each %INC) {
2036	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3178	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2037		3179
2038	warn "removing <$k>";	3180	warn "... unloading $k";
2039	delete $INC{$k};	3181	delete $INC{$k};
2040		3182
2041	$k =~ s/\.pm$//;	3183	$k =~ s/\.pm$//;
2042	$k =~ s/\//::/g;	3184	$k =~ s/\//::/g;
2043		3185
…		…
2046	}	3188	}
2047		3189
2048	Symbol::delete_package $k;	3190	Symbol::delete_package $k;
2049	}	3191	}
2050		3192
2051	# sync database to disk
2052	cf::db_sync;
2053	IO::AIO::flush;
2054
2055	# get rid of safe::, as good as possible	3193	warn "getting rid of safe::, as good as possible";
2056	Symbol::delete_package "safe::$_"	3194	Symbol::delete_package "safe::$_"
2057	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3195	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2058		3196
2059	# remove register_script_function callbacks
2060	# TODO
2061
2062	# unload cf.pm "a bit"	3197	warn "unloading cf.pm \"a bit\"";
2063	delete $INC{"cf.pm"};	3198	delete $INC{"cf.pm"};
		3199	delete $INC{"cf/pod.pm"};
2064		3200
2065	# don't, removes xs symbols, too,	3201	# don't, removes xs symbols, too,
2066	# and global variables created in xs	3202	# and global variables created in xs
2067	#Symbol::delete_package __PACKAGE__;	3203	#Symbol::delete_package __PACKAGE__;
2068		3204
2069	# reload cf.pm	3205	warn "unload completed, starting to reload now";
		3206
2070	warn "reloading cf.pm";	3207	warn "reloading cf.pm";
2071	require cf;	3208	require cf;
2072	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3209	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2073		3210
2074	# load config and database again	3211	warn "loading config and database again";
2075	cf::cfg_load;	3212	cf::cfg_load;
2076	cf::db_load;
2077		3213
2078	# load extensions
2079	warn "load extensions";	3214	warn "loading extensions";
2080	cf::load_extensions;	3215	cf::load_extensions;
2081		3216
2082	# reattach attachments to objects	3217	warn "reattaching attachments to objects/players";
2083	warn "reattach";	3218	_global_reattach; # objects, sockets
2084	_global_reattach;	3219	warn "reattaching attachments to maps";
2085	};	3220	reattach $_ for values %MAP;
		3221	warn "reattaching attachments to players";
		3222	reattach $_ for values %PLAYER;
2086		3223
2087	if ($@) {	3224	warn "leaving sync_job";
		3225
		3226	1
		3227	} or do {
2088	warn $@;	3228	warn $@;
2089	warn "error while reloading, exiting.";	3229	warn "error while reloading, exiting.";
2090	exit 1;	3230	exit 1;
2091	}	3231	};
2092		3232
2093	warn "reloaded successfully";	3233	warn "reloaded";
2094	};	3234	};
2095		3235
2096	#############################################################################	3236	our $RELOAD_WATCHER; # used only during reload
2097		3237
2098	unless ($LINK_MAP) {	3238	sub reload_perl() {
2099	$LINK_MAP = cf::map::new;	3239	# doing reload synchronously and two reloads happen back-to-back,
		3240	# coro crashes during coro_state_free->destroy here.
2100		3241
2101	$LINK_MAP->width (41);	3242	$RELOAD_WATCHER ||= Event->timer (
2102	$LINK_MAP->height (41);	3243	reentrant => 0,
2103	$LINK_MAP->alloc;
2104	$LINK_MAP->path ("{link}");
2105	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2106	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2107
2108	# dirty hack because... archetypes are not yet loaded
2109	Event->timer (
2110	after => 2,	3244	after => 0,
		3245	data => WF_AUTOCANCEL,
2111	cb => sub {	3246	cb => sub {
2112	$_[0]->w->cancel;	3247	do_reload_perl;
2113		3248	undef $RELOAD_WATCHER;
2114	# provide some exits "home"
2115	my $exit = cf::object::new "exit";
2116
2117	$exit->slaying ($EMERGENCY_POSITION->[0]);
2118	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2119	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2120
2121	$LINK_MAP->insert ($exit->clone, 19, 19);
2122	$LINK_MAP->insert ($exit->clone, 19, 20);
2123	$LINK_MAP->insert ($exit->clone, 19, 21);
2124	$LINK_MAP->insert ($exit->clone, 20, 19);
2125	$LINK_MAP->insert ($exit->clone, 20, 21);
2126	$LINK_MAP->insert ($exit->clone, 21, 19);
2127	$LINK_MAP->insert ($exit->clone, 21, 20);
2128	$LINK_MAP->insert ($exit->clone, 21, 21);
2129
2130	$exit->destroy;
2131	});	3249	},
2132		3250	);
2133	$LINK_MAP->{deny_save} = 1;
2134	$LINK_MAP->{deny_reset} = 1;
2135
2136	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2137	}	3251	}
2138
2139	register "<global>", __PACKAGE__;
2140		3252
2141	register_command "reload" => sub {	3253	register_command "reload" => sub {
2142	my ($who, $arg) = @_;	3254	my ($who, $arg) = @_;
2143		3255
2144	if ($who->flag (FLAG_WIZ)) {	3256	if ($who->flag (FLAG_WIZ)) {
2145	$who->message ("start of reload.");
2146	reload;
2147	$who->message ("end of reload.");	3257	$who->message ("reloading server.");
		3258	async { reload_perl };
2148	}	3259	}
2149	};	3260	};
2150		3261
2151	unshift @INC, $LIBDIR;	3262	unshift @INC, $LIBDIR;
2152		3263
		3264	my $bug_warning = 0;
		3265
		3266	our @WAIT_FOR_TICK;
		3267	our @WAIT_FOR_TICK_BEGIN;
		3268
		3269	sub wait_for_tick {
		3270	return unless $TICK_WATCHER->is_active;
		3271	return if $Coro::current == $Coro::main;
		3272
		3273	my $signal = new Coro::Signal;
		3274	push @WAIT_FOR_TICK, $signal;
		3275	$signal->wait;
		3276	}
		3277
		3278	sub wait_for_tick_begin {
		3279	return unless $TICK_WATCHER->is_active;
		3280	return if $Coro::current == $Coro::main;
		3281
		3282	my $signal = new Coro::Signal;
		3283	push @WAIT_FOR_TICK_BEGIN, $signal;
		3284	$signal->wait;
		3285	}
		3286
		3287	my $min = 1e6;#d#
		3288	my $avg = 10;
2153	$TICK_WATCHER = Event->timer (	3289	$TICK_WATCHER = Event->timer (
2154	reentrant => 0,	3290	reentrant => 0,
		3291	parked => 1,
2155	prio => 0,	3292	prio => 0,
2156	at => $NEXT_TICK || $TICK,	3293	at => $NEXT_TICK || $TICK,
2157	data => WF_AUTOCANCEL,	3294	data => WF_AUTOCANCEL,
2158	cb => sub {	3295	cb => sub {
2159	unless ($FREEZE) {	3296	if ($Coro::current != $Coro::main) {
		3297	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3298	unless ++$bug_warning > 10;
		3299	return;
		3300	}
		3301
		3302	$NOW = $tick_start = Event::time;
		3303
2160	cf::server_tick; # one server iteration	3304	cf::server_tick; # one server iteration
2161	$RUNTIME += $TICK;	3305
		3306	0 && sync_job {#d#
		3307	for(1..10) {
		3308	my $t = Event::time;
		3309	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3310	or die;
		3311
		3312	$map->width (50);
		3313	$map->height (50);
		3314	$map->alloc;
		3315	$map->_load_objects ("/tmp/x.map", 1);
		3316	my $t = Event::time - $t;
		3317
		3318	#next unless $t < 0.0013;#d#
		3319	if ($t < $min) {
		3320	$min = $t;
		3321	}
		3322	$avg = $avg * 0.99 + $t * 0.01;
		3323	}
		3324	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3325	exit 0;
		3326	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2162	}	3327	};
2163		3328
		3329	$RUNTIME += $TICK;
2164	$NEXT_TICK += $TICK;	3330	$NEXT_TICK += $TICK;
2165		3331
		3332	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3333	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3334	Coro::async_pool {
		3335	write_runtime
		3336	or warn "ERROR: unable to write runtime file: $!";
		3337	};
		3338	}
		3339
		3340	# my $AFTER = Event::time;
		3341	# warn $AFTER - $NOW;#d#
		3342
		3343	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3344	$sig->send;
		3345	}
		3346	while (my $sig = shift @WAIT_FOR_TICK) {
		3347	$sig->send;
		3348	}
		3349
		3350	$NOW = Event::time;
		3351
2166	# if we are delayed by four ticks or more, skip them all	3352	# if we are delayed by four ticks or more, skip them all
2167	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3353	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2168		3354
2169	$TICK_WATCHER->at ($NEXT_TICK);	3355	$TICK_WATCHER->at ($NEXT_TICK);
2170	$TICK_WATCHER->start;	3356	$TICK_WATCHER->start;
		3357
		3358	$LOAD = ($NOW - $tick_start) / $TICK;
		3359	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3360
		3361	_post_tick;
		3362
		3363
2171	},	3364	},
2172	);	3365	);
2173		3366
		3367	{
2174	IO::AIO::max_poll_time $TICK * 0.2;	3368	BDB::max_poll_time $TICK * 0.1;
2175		3369	$BDB_POLL_WATCHER = Event->io (
2176	Event->io (	3370	reentrant => 0,
2177	fd => IO::AIO::poll_fileno,	3371	fd => BDB::poll_fileno,
2178	poll => 'r',	3372	poll => 'r',
2179	prio => 5,	3373	prio => 0,
2180	data => WF_AUTOCANCEL,
2181	cb => \&IO::AIO::poll_cb,
2182	);
2183
2184	Event->timer (
2185	data => WF_AUTOCANCEL,	3374	data => WF_AUTOCANCEL,
2186	after => 0,	3375	cb => \&BDB::poll_cb,
2187	interval => 10,	3376	);
2188	cb => sub {	3377	BDB::min_parallel 8;
2189	(Coro::unblock_sub {	3378
2190	write_runtime	3379	BDB::set_sync_prepare {
2191	or warn "ERROR: unable to write runtime file: $!";	3380	my $status;
		3381	my $current = $Coro::current;
		3382	(
		3383	sub {
		3384	$status = $!;
		3385	$current->ready; undef $current;
		3386	},
		3387	sub {
		3388	Coro::schedule while defined $current;
		3389	$! = $status;
		3390	},
		3391	)
		3392	};
		3393
		3394	unless ($DB_ENV) {
		3395	$DB_ENV = BDB::db_env_create;
		3396
		3397	cf::sync_job {
		3398	eval {
		3399	BDB::db_env_open
		3400	$DB_ENV,
		3401	$BDBDIR,
		3402	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3403	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3404	0666;
		3405
		3406	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3407
		3408	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3409	$DB_ENV->set_lk_detect;
		3410	};
		3411
		3412	cf::cleanup "db_env_open(db): $@" if $@;
2192	})->();	3413	};
2193	},	3414	}
2194	);	3415	}
		3416
		3417	{
		3418	IO::AIO::min_parallel 8;
		3419
		3420	undef $Coro::AIO::WATCHER;
		3421	IO::AIO::max_poll_time $TICK * 0.1;
		3422	$AIO_POLL_WATCHER = Event->io (
		3423	reentrant => 0,
		3424	data => WF_AUTOCANCEL,
		3425	fd => IO::AIO::poll_fileno,
		3426	poll => 'r',
		3427	prio => 6,
		3428	cb => \&IO::AIO::poll_cb,
		3429	);
		3430	}
		3431
		3432	my $_log_backtrace;
		3433
		3434	sub _log_backtrace {
		3435	my ($msg, @addr) = @_;
		3436
		3437	$msg =~ s/\n//;
		3438
		3439	# limit the # of concurrent backtraces
		3440	if ($_log_backtrace < 2) {
		3441	++$_log_backtrace;
		3442	async {
		3443	my @bt = fork_call {
		3444	@addr = map { sprintf "%x", $_ } @addr;
		3445	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3446	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3447	or die "addr2line: $!";
		3448
		3449	my @funcs;
		3450	my @res = <$fh>;
		3451	chomp for @res;
		3452	while (@res) {
		3453	my ($func, $line) = splice @res, 0, 2, ();
		3454	push @funcs, "[$func] $line";
		3455	}
		3456
		3457	@funcs
		3458	};
		3459
		3460	LOG llevInfo, "[ABT] $msg\n";
		3461	LOG llevInfo, "[ABT] $_\n" for @bt;
		3462	--$_log_backtrace;
		3463	};
		3464	} else {
		3465	LOG llevInfo, "[ABT] $msg\n";
		3466	LOG llevInfo, "[ABT] [suppressed]\n";
		3467	}
		3468	}
		3469
		3470	# load additional modules
		3471	use cf::pod;
2195		3472
2196	END { cf::emergency_save }	3473	END { cf::emergency_save }
2197		3474
2198	1	3475	1
2199		3476

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