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Comparing cf.schmorp.de/server/lib/cf.pm (file contents):
Revision 1.131 by root, Thu Jan 4 00:53:54 2007 UTC vs.
Revision 1.332 by root, Sat Aug 18 17:33:53 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
75	our $LINK_MAP;
76	our $EMERGENCY_POSITION;	116	our $EMERGENCY_POSITION;
		117
		118	sub cf::map::normalise;
77		119
78	#############################################################################	120	#############################################################################
79		121
80	=head2 GLOBAL VARIABLES	122	=head2 GLOBAL VARIABLES
81		123
…		…
88	=item $cf::RUNTIME	130	=item $cf::RUNTIME
89		131
90	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
91	every server tick.	133	every server tick.
92		134
93	=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
94		138
95	The perl library directory, where extensions and cf-specific modules can	139	Various directories - "/etc", read-only install directory, perl-library
96	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.
97		143
98	=item $cf::NOW	144	=item $cf::NOW
99		145
100	The time of the last (current) server tick.	146	The time of the last (current) server tick.
101		147
102	=item $cf::TICK	148	=item $cf::TICK
103		149
104	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.
105		161
106	=item %cf::CFG	162	=item %cf::CFG
107		163
108	Configuration for the server, loaded from C</etc/crossfire/config>, or	164	Configuration for the server, loaded from C</etc/crossfire/config>, or
109	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.
110		178
111	=back	179	=back
112		180
113	=cut	181	=cut
114		182
115	BEGIN {	183	BEGIN {
116	*CORE::GLOBAL::warn = sub {	184	*CORE::GLOBAL::warn = sub {
117	my $msg = join "", @_;	185	my $msg = join "", @_;
118	utf8::encode $msg;
119		186
120	$msg .= "\n"	187	$msg .= "\n"
121	unless $msg =~ /\n$/;	188	unless $msg =~ /\n$/;
122		189
		190	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		191
		192	utf8::encode $msg;
123	LOG llevError, "cfperl: $msg";	193	LOG llevError, $msg;
124	};	194	};
125	}	195	}
126		196
127	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	197	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
128	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	198	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
129	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	199	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
130	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	200	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
131	@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';
132	@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)
133		204
134	# 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
135	# within the Safe compartment.	206	# within the Safe compartment.
136	for my $pkg (qw(	207	for my $pkg (qw(
137	cf::global cf::attachable	208	cf::global cf::attachable
…		…
146		217
147	$Event::DIED = sub {	218	$Event::DIED = sub {
148	warn "error in event callback: @_";	219	warn "error in event callback: @_";
149	};	220	};
150		221
151	my %ext_pkg;	222	#############################################################################
152	my @exts;
153	my @hook;
154		223
155	=head2 UTILITY FUNCTIONS	224	=head2 UTILITY FUNCTIONS
156		225
157	=over 4	226	=over 4
158		227
159	=cut	228	=item dumpval $ref
160		229
161	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	}
162		250
163	=item $ref = cf::from_json $json	251	=item $ref = cf::from_json $json
164		252
165	Converts a JSON string into the corresponding perl data structure.	253	Converts a JSON string into the corresponding perl data structure.
166		254
167	=cut
168
169	sub from_json($) {
170	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
171	JSON::Syck::Load $_[0]
172	}
173
174	=item $json = cf::to_json $ref	255	=item $json = cf::to_json $ref
175		256
176	Converts a perl data structure into its JSON representation.	257	Converts a perl data structure into its JSON representation.
177		258
178	=cut	259	=cut
179		260
180	sub to_json($) {	261	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
181	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
182	JSON::Syck::Dump $_[0]
183	}
184		262
185	=item my $guard = cf::guard { BLOCK }	263	sub to_json ($) { $json_coder->encode ($_[0]) }
186		264	sub from_json ($) { $json_coder->decode ($_[0]) }
187	Run the given callback when the guard object gets destroyed (useful for
188	coroutine cancellations).
189
190	You can call C<< ->cancel >> on the guard object to stop the block from
191	being executed.
192
193	=cut
194
195	sub guard(&) {
196	bless \(my $cb = $_[0]), cf::guard::;
197	}
198
199	sub cf::guard::cancel {
200	${$_[0]} = sub { };
201	}
202
203	sub cf::guard::DESTROY {
204	${$_[0]}->();
205	}
206		265
207	=item cf::lock_wait $string	266	=item cf::lock_wait $string
208		267
209	Wait until the given lock is available. See cf::lock_acquire.	268	Wait until the given lock is available. See cf::lock_acquire.
210		269
211	=item my $lock = cf::lock_acquire $string	270	=item my $lock = cf::lock_acquire $string
212		271
213	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
214	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,
215	for example when the coroutine gets canceled), the lock is automatically	274	for example when the coroutine gets canceled), the lock is automatically
216	returned.	275	returned.
217		276
218	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
219	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.
220		283
221	=cut	284	=cut
222		285
223	our %LOCK;	286	our %LOCK;
224		287
…		…
238	# wait, to be sure we are not locked	301	# wait, to be sure we are not locked
239	lock_wait $key;	302	lock_wait $key;
240		303
241	$LOCK{$key} = [];	304	$LOCK{$key} = [];
242		305
243	cf::guard {	306	Coro::guard {
244	# wake up all waiters, to be on the safe side	307	# wake up all waiters, to be on the safe side
245	$_->ready for @{ delete $LOCK{$key} };	308	$_->ready for @{ delete $LOCK{$key} };
246	}	309	}
247	}	310	}
248		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
249	=item cf::async { BLOCK }	384	=item cf::async { BLOCK }
250		385
251	Like C<Coro::async>, but runs the given BLOCK in an eval and only logs the	386	Currently the same as Coro::async_pool, meaning you cannot use
252	error instead of exiting the server in case of a problem.	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.
253		389
254	=cut	390	=cut
255		391
256	sub async(&) {	392	BEGIN { *async = \&Coro::async_pool }
257	my ($cb) = @_;
258
259	Coro::async {
260	eval { $cb->() };
261	warn $@ if $@;
262	}
263	}
264		393
265	=item cf::sync_job { BLOCK }	394	=item cf::sync_job { BLOCK }
266		395
267	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)
268	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
269	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.
270		400
271	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
272	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
273	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
274	fast or be very important.	404	fast or be very important.
…		…
277		407
278	sub sync_job(&) {	408	sub sync_job(&) {
279	my ($job) = @_;	409	my ($job) = @_;
280		410
281	if ($Coro::current == $Coro::main) {	411	if ($Coro::current == $Coro::main) {
		412	my $time = Event::time;
		413
282	# this is the main coro, too bad, we have to block	414	# this is the main coro, too bad, we have to block
283	# till the operation succeeds, freezing the server :/	415	# till the operation succeeds, freezing the server :/
284		416
285	# TODO: use suspend/resume instead	417	# TODO: use suspend/resume instead
286	# (but this is cancel-safe)	418	# (but this is cancel-safe)
287	local $FREEZE = 1;	419	my $freeze_guard = freeze_mainloop;
288		420
289	my $busy = 1;	421	my $busy = 1;
290	my @res;	422	my @res;
291		423
292	(Coro::async {	424	(async {
293	@res = eval { $job->() };	425	@res = eval { $job->() };
294	warn $@ if $@;	426	warn $@ if $@;
295	undef $busy;	427	undef $busy;
296	})->prio (Coro::PRIO_MAX);	428	})->prio (Coro::PRIO_MAX);
297		429
298	while ($busy) {	430	while ($busy) {
299	Coro::cede_notself;	431	Coro::cede or Event::one_event;
300	Event::one_event unless Coro::nready;
301	}	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
302		440
303	wantarray ? @res : $res[0]	441	wantarray ? @res : $res[0]
304	} else {	442	} else {
305	# we are in another coroutine, how wonderful, everything just works	443	# we are in another coroutine, how wonderful, everything just works
306		444
307	$job->()	445	$job->()
308	}	446	}
309	}	447	}
310		448
311	=item $coro = cf::coro { BLOCK }	449	=item $coro = cf::async_ext { BLOCK }
312		450
313	Creates and returns a new coro. This coro is automcatially being canceled	451	Like async, but this coro is automatically being canceled when the
314	when the extension calling this is being unloaded.	452	extension calling this is being unloaded.
315		453
316	=cut	454	=cut
317		455
318	sub coro(&) {	456	sub async_ext(&) {
319	my $cb = shift;	457	my $cb = shift;
320		458
321	my $coro = &cf::async ($cb);	459	my $coro = &Coro::async ($cb);
322		460
323	$coro->on_destroy (sub {	461	$coro->on_destroy (sub {
324	delete $EXT_CORO{$coro+0};	462	delete $EXT_CORO{$coro+0};
325	});	463	});
326	$EXT_CORO{$coro+0} = $coro;	464	$EXT_CORO{$coro+0} = $coro;
327		465
328	$coro	466	$coro
329	}	467	}
330		468
331	sub write_runtime {	469	=item fork_call { }, $args
332	my $runtime = cf::localdir . "/runtime";
333		470
334	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	471	Executes the given code block with the given arguments in a seperate
335	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.
336		475
337	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	476	=cut
338	(aio_write $fh, 0, (length $value), $value, 0) <= 0
339	and return;
340		477
341	aio_fsync $fh	478	sub fork_call(&@) {
342	and return;	479	my ($cb, @args) = @_;
343		480
344	close $fh	481	# we seemingly have to make a local copy of the whole thing,
345	or return;	482	# otherwise perl prematurely frees the stuff :/
		483	# TODO: investigate and fix (liekly this will be rather laborious)
346		484
347	aio_rename "$runtime~", $runtime	485	my @res = Coro::Util::fork_eval {
348	and return;	486	reset_signals;
		487	&$cb
		488	}, @args;
349		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	};
350	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 });
351	}	618	}
352		619
353	=back	620	=back
354		621
355	=cut	622	=cut
356
357	#############################################################################
358
359	package cf::path;
360
361	sub new {
362	my ($class, $path, $base) = @_;
363
364	$path = $path->as_string if ref $path;
365
366	my $self = bless { }, $class;
367
368	# {... are special paths that are not touched
369	# ?xxx/... are special absolute paths
370	# ?random/... random maps
371	# /! non-realised random map exit
372	# /... normal maps
373	# ~/... per-player maps without a specific player (DO NOT USE)
374	# ~user/... per-player map of a specific user
375
376	if ($path =~ /^{/) {
377	# fine as it is
378	} elsif ($path =~ s{^\?random/}{}) {
379	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
380	$self->{random} = cf::from_json $data;
381	} else {
382	if ($path =~ s{^~([^/]+)?}{}) {
383	$self->{user_rel} = 1;
384
385	if (defined $1) {
386	$self->{user} = $1;
387	} elsif ($base =~ m{^~([^/]+)/}) {
388	$self->{user} = $1;
389	} else {
390	warn "cannot resolve user-relative path without user <$path,$base>\n";
391	}
392	} elsif ($path =~ /^\//) {
393	# already absolute
394	} else {
395	$base =~ s{[^/]+/?$}{};
396	return $class->new ("$base/$path");
397	}
398
399	for ($path) {
400	redo if s{/\.?/}{/};
401	redo if s{/[^/]+/\.\./}{/};
402	}
403	}
404
405	$self->{path} = $path;
406
407	$self
408	}
409
410	# the name / primary key / in-game path
411	sub as_string {
412	my ($self) = @_;
413
414	$self->{user_rel} ? "~$self->{user}$self->{path}"
415	: $self->{random} ? "?random/$self->{path}"
416	: $self->{path}
417	}
418
419	# the displayed name, this is a one way mapping
420	sub visible_name {
421	my ($self) = @_;
422
423	# if (my $rmp = $self->{random}) {
424	# # todo: be more intelligent about this
425	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
426	# } else {
427	$self->as_string
428	# }
429	}
430
431	# escape the /'s in the path
432	sub _escaped_path {
433	# ∕ is U+2215
434	(my $path = $_[0]{path}) =~ s/\//∕/g;
435	$path
436	}
437
438	# the original (read-only) location
439	sub load_path {
440	my ($self) = @_;
441
442	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
443	}
444
445	# the temporary/swap location
446	sub save_path {
447	my ($self) = @_;
448
449	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
450	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
451	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
452	}
453
454	# the unique path, might be eq to save_path
455	sub uniq_path {
456	my ($self) = @_;
457
458	$self->{user_rel} || $self->{random}
459	? undef
460	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
461	}
462
463	# return random map parameters, or undef
464	sub random_map_params {
465	my ($self) = @_;
466
467	$self->{random}
468	}
469
470	# this is somewhat ugly, but style maps do need special treatment
471	sub is_style_map {
472	$_[0]{path} =~ m{^/styles/}
473	}
474
475	package cf;
476		623
477	#############################################################################	624	#############################################################################
478		625
479	=head2 ATTACHABLE OBJECTS	626	=head2 ATTACHABLE OBJECTS
480		627
…		…
482	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")
483	to it. All such attachable objects support the following methods.	630	to it. All such attachable objects support the following methods.
484		631
485	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>
486	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
487	crossfire+).	634	Crossfire TRT).
488		635
489	=over 4	636	=over 4
490		637
491	=item $attachable->attach ($attachment, key => $value...)	638	=item $attachable->attach ($attachment, key => $value...)
492		639
…		…
606	our @CB_TYPE = (); # registry for type (cf-object class) based events	753	our @CB_TYPE = (); # registry for type (cf-object class) based events
607	our @CB_MAP = ();	754	our @CB_MAP = ();
608		755
609	my %attachment;	756	my %attachment;
610		757
		758	sub cf::attachable::thawer_merge {
		759	# simply override everything except _meta
		760	local $_[0]{_meta};
		761	%{$_[0]} = %{$_[1]};
		762	}
		763
611	sub _attach_cb($$$$) {	764	sub _attach_cb($$$$) {
612	my ($registry, $event, $prio, $cb) = @_;	765	my ($registry, $event, $prio, $cb) = @_;
613		766
614	use sort 'stable';	767	use sort 'stable';
615		768
…		…
649	$registry = $CB_TYPE[$object_type] ||= [];	802	$registry = $CB_TYPE[$object_type] ||= [];
650		803
651	} elsif ($type eq "subtype") {	804	} elsif ($type eq "subtype") {
652	defined $object_type or Carp::croak "subtype specified without type";	805	defined $object_type or Carp::croak "subtype specified without type";
653	my $object_subtype = shift @arg;	806	my $object_subtype = shift @arg;
654	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	807	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
655		808
656	} elsif ($type eq "package") {	809	} elsif ($type eq "package") {
657	my $pkg = shift @arg;	810	my $pkg = shift @arg;
658		811
659	while (my ($name, $id) = each %cb_id) {	812	while (my ($name, $id) = each %cb_id) {
…		…
688	_attach $registry, $klass, @attach;	841	_attach $registry, $klass, @attach;
689	}	842	}
690		843
691	$obj->{$name} = \%arg;	844	$obj->{$name} = \%arg;
692	} else {	845	} else {
693	warn "object uses attachment '$name' that is not available, postponing.\n";	846	warn "object uses attachment '$name' which is not available, postponing.\n";
694	}	847	}
695		848
696	$obj->{_attachment}{$name} = undef;	849	$obj->{_attachment}{$name} = undef;
697	}	850	}
698		851
…		…
700	if (ref $_[0]) {	853	if (ref $_[0]) {
701	_object_attach @_;	854	_object_attach @_;
702	} else {	855	} else {
703	_attach shift->_attach_registry, @_;	856	_attach shift->_attach_registry, @_;
704	}	857	}
		858	_recalc_want;
705	};	859	};
706		860
707	# all those should be optimised	861	# all those should be optimised
708	sub cf::attachable::detach {	862	sub cf::attachable::detach {
709	my ($obj, $name) = @_;	863	my ($obj, $name) = @_;
…		…
712	delete $obj->{_attachment}{$name};	866	delete $obj->{_attachment}{$name};
713	reattach ($obj);	867	reattach ($obj);
714	} else {	868	} else {
715	Carp::croak "cannot, currently, detach class attachments";	869	Carp::croak "cannot, currently, detach class attachments";
716	}	870	}
		871	_recalc_want;
717	};	872	};
718		873
719	sub cf::attachable::attached {	874	sub cf::attachable::attached {
720	my ($obj, $name) = @_;	875	my ($obj, $name) = @_;
721		876
…		…
736	";	891	";
737	die if $@;	892	die if $@;
738	}	893	}
739		894
740	our $override;	895	our $override;
741	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?
742		897
743	sub override {	898	sub override {
744	$override = 1;	899	$override = 1;
745	@invoke_results = ();	900	@INVOKE_RESULTS = (@_);
746	}	901	}
747		902
748	sub do_invoke {	903	sub do_invoke {
749	my $event = shift;	904	my $event = shift;
750	my $callbacks = shift;	905	my $callbacks = shift;
751		906
752	@invoke_results = ();	907	@INVOKE_RESULTS = ();
753		908
754	local $override;	909	local $override;
755		910
756	for (@$callbacks) {	911	for (@$callbacks) {
757	eval { &{$_->[1]} };	912	eval { &{$_->[1]} };
…		…
774		929
775	Generate an object-specific event with the given arguments.	930	Generate an object-specific event with the given arguments.
776		931
777	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
778	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
779	results (if you must, access C<@cf::invoke_results> directly).	934	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
780		935
781	=back	936	=back
782		937
783	=cut	938	=cut
784		939
785	#############################################################################	940	#############################################################################
786	# 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	}
787		953
788	sub reattach {	954	sub reattach {
789	# basically do the same as instantiate, without calling instantiate	955	# basically do the same as instantiate, without calling instantiate
790	my ($obj) = @_;	956	my ($obj) = @_;
		957
		958	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
791		959
792	my $registry = $obj->registry;	960	my $registry = $obj->registry;
793		961
794	@$registry = ();	962	@$registry = ();
795		963
…		…
842	$filename, length $$rdata, scalar @$objs;	1010	$filename, length $$rdata, scalar @$objs;
843		1011
844	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1012	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
845	chmod SAVE_MODE, $fh;	1013	chmod SAVE_MODE, $fh;
846	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1014	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
847	aio_fsync $fh;	1015	aio_fsync $fh if $cf::USE_FSYNC;
848	close $fh;	1016	close $fh;
849		1017
850	if (@$objs) {	1018	if (@$objs) {
851	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) {
852	chmod SAVE_MODE, $fh;	1020	chmod SAVE_MODE, $fh;
853	my $data = Storable::nfreeze { version => 1, objs => $objs };	1021	my $data = Storable::nfreeze { version => 1, objs => $objs };
854	aio_write $fh, 0, (length $data), $data, 0;	1022	aio_write $fh, 0, (length $data), $data, 0;
855	aio_fsync $fh;	1023	aio_fsync $fh if $cf::USE_FSYNC;
856	close $fh;	1024	close $fh;
857	aio_rename "$filename.pst~", "$filename.pst";	1025	aio_rename "$filename.pst~", "$filename.pst";
858	}	1026	}
859	} else {	1027	} else {
860	aio_unlink "$filename.pst";	1028	aio_unlink "$filename.pst";
…		…
892	or return;	1060	or return;
893	$av = eval { (Storable::thaw $av)->{objs} };	1061	$av = eval { (Storable::thaw $av)->{objs} };
894	}	1062	}
895		1063
896	warn sprintf "loading %s (%d)\n",	1064	warn sprintf "loading %s (%d)\n",
897	$filename, length $data, scalar @{$av || []};#d#	1065	$filename, length $data, scalar @{$av || []};
898	return ($data, $av);	1066	return ($data, $av);
899	}	1067	}
		1068
		1069	=head2 COMMAND CALLBACKS
		1070
		1071	=over 4
		1072
		1073	=cut
900		1074
901	#############################################################################	1075	#############################################################################
902	# command handling &c	1076	# command handling &c
903		1077
904	=item cf::register_command $name => \&callback($ob,$args);	1078	=item cf::register_command $name => \&callback($ob,$args);
…		…
917	push @{ $COMMAND{$name} }, [$caller, $cb];	1091	push @{ $COMMAND{$name} }, [$caller, $cb];
918	}	1092	}
919		1093
920	=item cf::register_extcmd $name => \&callback($pl,$packet);	1094	=item cf::register_extcmd $name => \&callback($pl,$packet);
921		1095
922	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.
923		1101
924	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
925	called.	1103	called.
926		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
927	=cut	1116	=cut
928		1117
929	sub register_extcmd {	1118	sub register_extcmd {
930	my ($name, $cb) = @_;	1119	my ($name, $cb) = @_;
931		1120
932	my $caller = caller;
933	#warn "registering extcmd '$name' to '$caller'";
934
935	$EXTCMD{$name} = [$cb, $caller];	1121	$EXTCMD{$name} = $cb;
		1122	}
		1123
		1124	sub register_exticmd {
		1125	my ($name, $cb) = @_;
		1126
		1127	$EXTICMD{$name} = $cb;
936	}	1128	}
937		1129
938	cf::player->attach (	1130	cf::player->attach (
939	on_command => sub {	1131	on_command => sub {
940	my ($pl, $name, $params) = @_;	1132	my ($pl, $name, $params) = @_;
…		…
949	cf::override;	1141	cf::override;
950	},	1142	},
951	on_extcmd => sub {	1143	on_extcmd => sub {
952	my ($pl, $buf) = @_;	1144	my ($pl, $buf) = @_;
953		1145
954	my $msg = eval { from_json $buf };	1146	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
955		1147
956	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
957	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1154	if (my $cb = $EXTCMD{$type}) {
958	if (my %reply = $cb->[0]->($pl, $msg)) {	1155	my @reply = $cb->($pl, @payload);
		1156
959	$pl->ext_reply ($msg->{msgid}, %reply);	1157	$pl->ext_reply ($reply, @reply)
960	}	1158	if $reply;
961	}	1159	}
962	} else {	1160	} else {
963	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1161	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
964	}	1162	}
965		1163
966	cf::override;	1164	cf::override;
967	},	1165	},
968	);	1166	);
969		1167
970	sub register {
971	my ($base, $pkg) = @_;
972
973	#TODO
974	}
975
976	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($) {
977	my ($path) = @_;	1546	my ($path) = @_;
978		1547
979	$path =~ /([^\/\\]+)\.ext$/ or die "$path";	1548	my ($match, $specificity);
980	my $base = $1;
981	my $pkg = $1;
982	$pkg =~ s/[^[:word:]]/_/g;
983	$pkg = "ext::$pkg";
984		1549
985	warn "loading '$path' into '$pkg'\n";	1550	for my $region (list) {
986		1551	if ($region->{match} && $path =~ $region->{match}) {
987	open my $fh, "<:utf8", $path	1552	($match, $specificity) = ($region, $region->specificity)
988	or die "$path: $!";	1553	if $region->specificity > $specificity;
989		1554	}
990	my $source =
991	"package $pkg; use strict; use utf8;\n"
992	. "#line 1 \"$path\"\n{\n"
993	. (do { local $/; <$fh> })
994	. "\n};\n1";
995
996	eval $source
997	or die $@ ? "$path: $@\n"
998	: "extension disabled.\n";
999
1000	push @exts, $pkg;
1001	$ext_pkg{$base} = $pkg;
1002
1003	# no strict 'refs';
1004	# @{"$pkg\::ISA"} = ext::;
1005
1006	register $base, $pkg;
1007	}
1008
1009	sub unload_extension {
1010	my ($pkg) = @_;
1011
1012	warn "removing extension $pkg\n";
1013
1014	# remove hooks
1015	#TODO
1016	# for my $idx (0 .. $#PLUGIN_EVENT) {
1017	# delete $hook[$idx]{$pkg};
1018	# }	1555	}
1019		1556
1020	# remove commands	1557	$match
1021	for my $name (keys %COMMAND) {
1022	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1023
1024	if (@cb) {
1025	$COMMAND{$name} = \@cb;
1026	} else {
1027	delete $COMMAND{$name};
1028	}
1029	}
1030
1031	# remove extcmds
1032	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1033	delete $EXTCMD{$name};
1034	}
1035
1036	if (my $cb = $pkg->can ("unload")) {
1037	eval {
1038	$cb->($pkg);
1039	1
1040	} or warn "$pkg unloaded, but with errors: $@";
1041	}
1042
1043	Symbol::delete_package $pkg;
1044	}
1045
1046	sub load_extensions {
1047	for my $ext (<$LIBDIR/*.ext>) {
1048	next unless -r $ext;
1049	eval {
1050	load_extension $ext;
1051	1
1052	} or warn "$ext not loaded: $@";
1053	}
1054	}
1055
1056	#############################################################################
1057	# load/save/clean perl data associated with a map
1058
1059	*cf::mapsupport::on_clean = sub {
1060	my ($map) = @_;
1061
1062	my $path = $map->tmpname;
1063	defined $path or return;
1064
1065	unlink "$path.pst";
1066	};
1067
1068	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1069
1070	#############################################################################
1071	# load/save perl data associated with player->ob objects
1072
1073	sub all_objects(@) {
1074	@_, map all_objects ($_->inv), @_
1075	}
1076
1077	# TODO: compatibility cruft, remove when no longer needed
1078	cf::player->attach (
1079	on_load => sub {
1080	my ($pl, $path) = @_;
1081
1082	for my $o (all_objects $pl->ob) {
1083	if (my $value = $o->get_ob_key_value ("_perl_data")) {
1084	$o->set_ob_key_value ("_perl_data");
1085
1086	%$o = %{ Storable::thaw pack "H*", $value };
1087	}
1088	}
1089	},
1090	);
1091
1092	#############################################################################
1093
1094	=head2 CORE EXTENSIONS
1095
1096	Functions and methods that extend core crossfire objects.
1097
1098	=head3 cf::player
1099
1100	=over 4
1101
1102	=item cf::player::exists $login
1103
1104	Returns true when the given account exists.
1105
1106	=cut
1107
1108	sub cf::player::exists($) {
1109	cf::player::find $_[0]
1110	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
1111	}
1112
1113	=item $player->ext_reply ($msgid, $msgtype, %msg)
1114
1115	Sends an ext reply to the player.
1116
1117	=cut
1118
1119	sub cf::player::ext_reply($$$%) {
1120	my ($self, $id, %msg) = @_;
1121
1122	$msg{msgid} = $id;
1123
1124	$self->send ("ext " . to_json \%msg);
1125	}	1558	}
1126		1559
1127	=back	1560	=back
1128
1129		1561
1130	=head3 cf::map	1562	=head3 cf::map
1131		1563
1132	=over 4	1564	=over 4
1133		1565
…		…
1136	package cf::map;	1568	package cf::map;
1137		1569
1138	use Fcntl;	1570	use Fcntl;
1139	use Coro::AIO;	1571	use Coro::AIO;
1140		1572
		1573	use overload
		1574	'""' => \&as_string,
		1575	fallback => 1;
		1576
1141	our $MAX_RESET = 7200;	1577	our $MAX_RESET = 3600;
1142	our $DEFAULT_RESET = 3600;	1578	our $DEFAULT_RESET = 3000;
1143		1579
1144	sub generate_random_map {	1580	sub generate_random_map {
1145	my ($path, $rmp) = @_;	1581	my ($self, $rmp) = @_;
1146
1147	# mit "rum" bekleckern, nicht	1582	# mit "rum" bekleckern, nicht
1148	cf::map::_create_random_map	1583	$self->_create_random_map (
1149	$path,
1150	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1584	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1151	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1585	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1152	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1586	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1153	$rmp->{exit_on_final_map},	1587	$rmp->{exit_on_final_map},
1154	$rmp->{xsize}, $rmp->{ysize},	1588	$rmp->{xsize}, $rmp->{ysize},
1155	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1589	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1156	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1590	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1157	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1591	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1158	$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},
1159	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1593	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1160	(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"
1161	}	1723	}
1162		1724
1163	# and all this just because we cannot iterate over	1725	# and all this just because we cannot iterate over
1164	# all maps in C++...	1726	# all maps in C++...
1165	sub change_all_map_light {	1727	sub change_all_map_light {
…		…
1167		1729
1168	$_->change_map_light ($change)	1730	$_->change_map_light ($change)
1169	for grep $_->outdoor, values %cf::MAP;	1731	for grep $_->outdoor, values %cf::MAP;
1170	}	1732	}
1171		1733
		1734	sub decay_objects {
		1735	my ($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
1172	sub try_load_header($) {	1750	sub load_header_from($) {
1173	my ($path) = @_;	1751	my ($self, $path) = @_;
1174		1752
1175	utf8::encode $path;	1753	utf8::encode $path;
1176	aio_open $path, O_RDONLY, 0	1754	#aio_open $path, O_RDONLY, 0
		1755	# or return;
		1756
		1757	$self->_load_header ($path)
1177	or return;	1758	or return;
1178		1759
1179	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
1180	or return;	1803	or return;
		1804	$self->prepare_orig;
		1805	}
1181		1806
1182	$map->load_header ($path)	1807	$self->{deny_reset} = 1
1183	or return;	1808	if $self->no_reset;
1184		1809
1185	$map->{load_path} = $path;	1810	$self->default_region (cf::region::find_by_path $self->{path})
		1811	unless $self->default_region;
1186		1812
1187	$map	1813	1
1188	}	1814	}
1189		1815
1190	sub find_map;	1816	sub find;
1191	sub find_map {	1817	sub find {
1192	my ($path, $origin) = @_;	1818	my ($path, $origin) = @_;
1193		1819
1194	#warn "find_map<$path,$origin>\n";#d#
1195
1196	$path = new cf::path $path, $origin && $origin->path;	1820	$path = normalise $path, $origin && $origin->path;
1197	my $key = $path->as_string;
1198		1821
1199	cf::lock_wait "map_find:$key";	1822	cf::lock_wait "map_find:$path";
1200		1823
1201	$cf::MAP{$key} || do {	1824	$cf::MAP{$path} || do {
1202	my $guard = cf::lock_acquire "map_find:$key";	1825	my $guard = cf::lock_acquire "map_find:$path";
1203		1826	my $map = new_from_path cf::map $path
1204	# do it the slow way
1205	my $map = try_load_header $path->save_path;
1206
1207	if ($map) {
1208	# safety
1209	$map->{instantiate_time} = $cf::RUNTIME
1210	if $map->{instantiate_time} > $cf::RUNTIME;
1211	} else {
1212	if (my $rmp = $path->random_map_params) {
1213	$map = generate_random_map $key, $rmp;
1214	} else {
1215	$map = try_load_header $path->load_path;
1216	}
1217
1218	$map or return;	1827	or return;
1219		1828
1220	$map->{load_original} = 1;
1221	$map->{instantiate_time} = $cf::RUNTIME;
1222	$map->instantiate;
1223
1224	# per-player maps become, after loading, normal maps
1225	$map->per_player (0) if $path->{user_rel};
1226	}
1227
1228	$map->path ($key);
1229	$map->{path} = $path;
1230	$map->{last_save} = $cf::RUNTIME;	1829	$map->{last_save} = $cf::RUNTIME;
1231	$map->last_access ($cf::RUNTIME);
1232		1830
1233	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;
1234	$map->reset;	1837	$map->reset;
1235	undef $guard;	1838	undef $guard;
1236	$map = find_map $path	1839	return find $path;
1237	or return;
1238	}	1840	}
1239		1841
1240	$cf::MAP{$key} = $map	1842	$cf::MAP{$path} = $map
1241	}	1843	}
1242	}	1844	}
		1845
		1846	sub pre_load { }
		1847	sub post_load { }
1243		1848
1244	sub load {	1849	sub load {
1245	my ($self) = @_;	1850	my ($self) = @_;
1246		1851
		1852	local $self->{deny_reset} = 1; # loading can take a long time
		1853
1247	my $path = $self->{path};	1854	my $path = $self->{path};
		1855
		1856	{
1248	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	1857	my $guard = cf::lock_acquire "map_load:$path";
1249		1858
1250	return if $self->in_memory != cf::MAP_SWAPPED;	1859	return if $self->in_memory != cf::MAP_SWAPPED;
1251		1860
1252	$self->in_memory (cf::MAP_LOADING);	1861	$self->in_memory (cf::MAP_LOADING);
1253		1862
1254	$self->alloc;	1863	$self->alloc;
		1864
		1865	$self->pre_load;
		1866	Coro::cede;
		1867
1255	$self->load_objects ($self->{load_path}, 1)	1868	$self->_load_objects ($self->{load_path}, 1)
1256	or return;	1869	or return;
1257		1870
1258	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	1871	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1259	if delete $self->{load_original};	1872	if delete $self->{load_original};
1260		1873
1261	if (my $uniq = $path->uniq_path) {	1874	if (my $uniq = $self->uniq_path) {
1262	utf8::encode $uniq;	1875	utf8::encode $uniq;
1263	if (aio_open $uniq, O_RDONLY, 0) {	1876	if (aio_open $uniq, O_RDONLY, 0) {
1264	$self->clear_unique_items;	1877	$self->clear_unique_items;
1265	$self->load_objects ($uniq, 0);	1878	$self->_load_objects ($uniq, 0);
1266	}	1879	}
1267	}	1880	}
1268		1881
		1882	Coro::cede;
1269	# now do the right thing for maps	1883	# now do the right thing for maps
1270	$self->link_multipart_objects;	1884	$self->link_multipart_objects;
1271
1272	if ($self->{path}->is_style_map) {
1273	$self->{deny_save} = 1;
1274	$self->{deny_reset} = 1;
1275	} else {
1276	$self->fix_auto_apply;
1277	$self->decay_objects;
1278	$self->update_buttons;
1279	$self->set_darkness_map;
1280	$self->difficulty ($self->estimate_difficulty)	1885	$self->difficulty ($self->estimate_difficulty)
1281	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;
1282	$self->activate;	1896	$self->activate;
1283	}	1897	}
1284		1898
		1899	$self->{last_save} = $cf::RUNTIME;
		1900	$self->last_access ($cf::RUNTIME);
		1901
1285	$self->in_memory (cf::MAP_IN_MEMORY);	1902	$self->in_memory (cf::MAP_IN_MEMORY);
1286	}	1903	}
1287		1904
1288	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	$self
		1918	}
		1919
		1920	# find and load all maps in the 3x3 area around a map
		1921	sub load_diag {
		1922	my ($map) = @_;
		1923
		1924	my @diag; # 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	$neigh->load;
		1932
		1933	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],
		1934	[$neigh->tile_path (($_ + 1) % 4), $neigh];
		1935	}
		1936
		1937	for (@diag) {
		1938	my $neigh = find @$_
		1939	or next;
		1940	$neigh->load;
		1941	}
		1942	}
		1943
		1944	sub find_sync {
1289	my ($path, $origin) = @_;	1945	my ($path, $origin) = @_;
1290		1946
1291	#warn "load_map_sync<$path, $origin>\n";#d#	1947	cf::sync_job { find $path, $origin }
		1948	}
1292		1949
1293	cf::sync_job {	1950	sub do_load_sync {
1294	my $map = cf::map::find_map $path, $origin	1951	my ($map) = @_;
1295	or return;	1952
		1953	cf::sync_job { $map->load };
		1954	}
		1955
		1956	our %MAP_PREFETCH;
		1957	our $MAP_PREFETCHER = undef;
		1958
		1959	sub find_async {
		1960	my ($path, $origin) = @_;
		1961
		1962	$path = normalise $path, $origin && $origin->{path};
		1963
		1964	if (my $map = $cf::MAP{$path}) {
		1965	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
		1966	}
		1967
		1968	undef $MAP_PREFETCH{$path};
		1969	$MAP_PREFETCHER ||= cf::async {
		1970	while (%MAP_PREFETCH) {
		1971	for my $path (keys %MAP_PREFETCH) {
		1972	if (my $map = find $path) {
1296	$map->load;	1973	$map->load;
1297	$map	1974	}
		1975
		1976	delete $MAP_PREFETCH{$path};
		1977	}
		1978	}
		1979	undef $MAP_PREFETCHER;
1298	}	1980	};
		1981	$MAP_PREFETCHER->prio (6);
		1982
		1983	()
1299	}	1984	}
1300		1985
1301	sub save {	1986	sub save {
1302	my ($self) = @_;	1987	my ($self) = @_;
1303		1988
		1989	my $lock = cf::lock_acquire "map_data:" . $self->path;
		1990
1304	$self->{last_save} = $cf::RUNTIME;	1991	$self->{last_save} = $cf::RUNTIME;
1305		1992
1306	return unless $self->dirty;	1993	return unless $self->dirty;
1307		1994
1308	my $save = $self->{path}->save_path; utf8::encode $save;	1995	my $save = $self->save_path; utf8::encode $save;
1309	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	1996	my $uniq = $self->uniq_path; utf8::encode $uniq;
1310		1997
1311	$self->{load_path} = $save;	1998	$self->{load_path} = $save;
1312		1999
1313	return if $self->{deny_save};	2000	return if $self->{deny_save};
1314		2001
		2002	local $self->{last_access} = $self->last_access;#d#
		2003
		2004	cf::async {
		2005	$_->contr->save for $self->players;
		2006	};
		2007
1315	if ($uniq) {	2008	if ($uniq) {
1316	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2009	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1317	$self->save_objects ($uniq, cf::IO_UNIQUES);	2010	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1318	} else {	2011	} else {
1319	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2012	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1320	}	2013	}
1321	}	2014	}
1322		2015
1323	sub swap_out {	2016	sub swap_out {
1324	my ($self) = @_;	2017	my ($self) = @_;
1325		2018
1326	# save first because save cedes	2019	# save first because save cedes
1327	$self->save;	2020	$self->save;
		2021
		2022	my $lock = cf::lock_acquire "map_data:" . $self->path;
1328		2023
1329	return if $self->players;	2024	return if $self->players;
1330	return if $self->in_memory != cf::MAP_IN_MEMORY;	2025	return if $self->in_memory != cf::MAP_IN_MEMORY;
1331	return if $self->{deny_save};	2026	return if $self->{deny_save};
1332		2027
…		…
1336		2031
1337	sub reset_at {	2032	sub reset_at {
1338	my ($self) = @_;	2033	my ($self) = @_;
1339		2034
1340	# TODO: safety, remove and allow resettable per-player maps	2035	# TODO: safety, remove and allow resettable per-player maps
1341	return 1e99 if $self->{path}{user_rel};
1342	return 1e99 if $self->{deny_reset};	2036	return 1e99 if $self->{deny_reset};
1343		2037
1344	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2038	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1345	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2039	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1346		2040
…		…
1351	my ($self) = @_;	2045	my ($self) = @_;
1352		2046
1353	$self->reset_at <= $cf::RUNTIME	2047	$self->reset_at <= $cf::RUNTIME
1354	}	2048	}
1355		2049
1356	sub unlink_save {
1357	my ($self) = @_;
1358
1359	utf8::encode (my $save = $self->{path}->save_path);
1360	aioreq_pri 3; IO::AIO::aio_unlink $save;
1361	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1362	}
1363
1364	sub rename {
1365	my ($self, $new_path) = @_;
1366
1367	$self->unlink_save;
1368
1369	delete $cf::MAP{$self->path};
1370	$self->{path} = new cf::path $new_path;
1371	$self->path ($self->{path}->as_string);
1372	$cf::MAP{$self->path} = $self;
1373
1374	$self->save;
1375	}
1376
1377	sub reset {	2050	sub reset {
1378	my ($self) = @_;	2051	my ($self) = @_;
1379		2052
		2053	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2054
1380	return if $self->players;	2055	return if $self->players;
1381	return if $self->{path}{user_rel};#d#
1382		2056
1383	warn "resetting map ", $self->path;#d#	2057	warn "resetting map ", $self->path;
		2058
		2059	$self->in_memory (cf::MAP_SWAPPED);
		2060
		2061	# need to save uniques path
		2062	unless ($self->{deny_save}) {
		2063	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2064
		2065	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2066	if $uniq;
		2067	}
1384		2068
1385	delete $cf::MAP{$self->path};	2069	delete $cf::MAP{$self->path};
		2070
		2071	$self->clear;
1386		2072
1387	$_->clear_links_to ($self) for values %cf::MAP;	2073	$_->clear_links_to ($self) for values %cf::MAP;
1388		2074
1389	$self->unlink_save;	2075	$self->unlink_save;
1390	$self->destroy;	2076	$self->destroy;
…		…
1393	my $nuke_counter = "aaaa";	2079	my $nuke_counter = "aaaa";
1394		2080
1395	sub nuke {	2081	sub nuke {
1396	my ($self) = @_;	2082	my ($self) = @_;
1397		2083
		2084	delete $cf::MAP{$self->path};
		2085
		2086	$self->unlink_save;
		2087
		2088	bless $self, "cf::map";
		2089	delete $self->{deny_reset};
1398	$self->{deny_save} = 1;	2090	$self->{deny_save} = 1;
1399	$self->reset_timeout (1);	2091	$self->reset_timeout (1);
1400	$self->rename ("{nuke}/" . ($nuke_counter++));	2092	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2093
		2094	$cf::MAP{$self->path} = $self;
		2095
1401	$self->reset; # polite request, might not happen	2096	$self->reset; # polite request, might not happen
1402	}	2097	}
1403		2098
1404	sub customise_for {	2099	=item $maps = cf::map::tmp_maps
1405	my ($map, $ob) = @_;
1406		2100
1407	if ($map->per_player) {	2101	Returns an arrayref with all map paths of currently instantiated and saved
1408	return cf::map::find_map "~" . $ob->name . "/" . $map->{path}{path};	2102	maps. May block.
		2103
		2104	=cut
		2105
		2106	sub tmp_maps() {
1409	}	2107	[
1410		2108	map {
1411	$map	2109	utf8::decode $_;
		2110	/\.map$/
		2111	? normalise $_
		2112	: ()
		2113	} @{ aio_readdir $TMPDIR or [] }
		2114	]
1412	}	2115	}
1413		2116
1414	sub emergency_save {	2117	=item $maps = cf::map::random_maps
1415	local $cf::FREEZE = 1;
1416		2118
1417	warn "enter emergency map save\n";	2119	Returns an arrayref with all map paths of currently instantiated and saved
		2120	random maps. May block.
1418		2121
1419	cf::sync_job {	2122	=cut
1420	warn "begin emergency map save\n";
1421	$_->save for values %cf::MAP;
1422	};
1423		2123
1424	warn "end emergency map save\n";	2124	sub random_maps() {
		2125	[
		2126	map {
		2127	utf8::decode $_;
		2128	/\.map$/
		2129	? normalise "?random/$_"
		2130	: ()
		2131	} @{ aio_readdir $RANDOMDIR or [] }
		2132	]
		2133	}
		2134
		2135	=item cf::map::unique_maps
		2136
		2137	Returns an arrayref of paths of all shared maps that have
		2138	instantiated unique items. May block.
		2139
		2140	=cut
		2141
		2142	sub unique_maps() {
		2143	[
		2144	map {
		2145	utf8::decode $_;
		2146	/\.map$/
		2147	? normalise $_
		2148	: ()
		2149	} @{ aio_readdir $UNIQUEDIR or [] }
		2150	]
1425	}	2151	}
1426		2152
1427	package cf;	2153	package cf;
1428		2154
1429	=back	2155	=back
1430		2156
		2157	=head3 cf::object
		2158
		2159	=cut
		2160
		2161	package cf::object;
		2162
		2163	=over 4
		2164
		2165	=item $ob->inv_recursive
		2166
		2167	Returns the inventory of the object _and_ their inventories, recursively.
		2168
		2169	=cut
		2170
		2171	sub inv_recursive_;
		2172	sub inv_recursive_ {
		2173	map { $_, inv_recursive_ $_->inv } @_
		2174	}
		2175
		2176	sub inv_recursive {
		2177	inv_recursive_ inv $_[0]
		2178	}
		2179
		2180	package cf;
		2181
		2182	=back
1431		2183
1432	=head3 cf::object::player	2184	=head3 cf::object::player
1433		2185
1434	=over 4	2186	=over 4
1435		2187
…		…
1449		2201
1450	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2202	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1451		2203
1452	if ($self->{record_replies}) {	2204	if ($self->{record_replies}) {
1453	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2205	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2206
1454	} else {	2207	} else {
		2208	my $pl = $self->contr;
		2209
		2210	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2211	my $dialog = $pl->{npc_dialog};
		2212	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2213
		2214	} else {
1455	$msg = $npc->name . " says: $msg" if $npc;	2215	$msg = $npc->name . " says: $msg" if $npc;
1456	$self->message ($msg, $flags);	2216	$self->message ($msg, $flags);
		2217	}
1457	}	2218	}
		2219	}
		2220
		2221	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2222
		2223	=cut
		2224
		2225	sub cf::object::send_msg {
		2226	my $pl = shift->contr
		2227	or return;
		2228	$pl->send_msg (@_);
1458	}	2229	}
1459		2230
1460	=item $player_object->may ("access")	2231	=item $player_object->may ("access")
1461		2232
1462	Returns wether the given player is authorized to access resource "access"	2233	Returns wether the given player is authorized to access resource "access"
…		…
1475		2246
1476	=item $player_object->enter_link	2247	=item $player_object->enter_link
1477		2248
1478	Freezes the player and moves him/her to a special map (C<{link}>).	2249	Freezes the player and moves him/her to a special map (C<{link}>).
1479		2250
1480	The player should be reaosnably safe there for short amounts of time. You	2251	The player should be reasonably safe there for short amounts of time. You
1481	I<MUST> call C<leave_link> as soon as possible, though.	2252	I<MUST> call C<leave_link> as soon as possible, though.
1482		2253
		2254	Will never block.
		2255
1483	=item $player_object->leave_link ($map, $x, $y)	2256	=item $player_object->leave_link ($map, $x, $y)
1484		2257
1485	Moves the player out of the specila link map onto the given map. If the	2258	Moves the player out of the special C<{link}> map onto the specified
1486	map is not valid (or omitted), the player will be moved back to the	2259	map. If the map is not valid (or omitted), the player will be moved back
1487	location he/she was before the call to C<enter_link>, or, if that fails,	2260	to the location he/she was before the call to C<enter_link>, or, if that
1488	to the emergency map position.	2261	fails, to the emergency map position.
1489		2262
1490	Might block.	2263	Might block.
1491		2264
1492	=cut	2265	=cut
		2266
		2267	sub link_map {
		2268	unless ($LINK_MAP) {
		2269	$LINK_MAP = cf::map::find "{link}"
		2270	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2271	$LINK_MAP->load;
		2272	}
		2273
		2274	$LINK_MAP
		2275	}
1493		2276
1494	sub cf::object::player::enter_link {	2277	sub cf::object::player::enter_link {
1495	my ($self) = @_;	2278	my ($self) = @_;
1496		2279
1497	$self->deactivate_recursive;	2280	$self->deactivate_recursive;
1498		2281
1499	return if $self->map == $LINK_MAP;	2282	return if UNIVERSAL::isa $self->map, "ext::map_link";
1500		2283
1501	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2284	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1502	if $self->map;	2285	if $self->map && $self->map->{path} ne "{link}";
1503		2286
1504	$self->enter_map ($LINK_MAP, 20, 20);	2287	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1505	}	2288	}
1506		2289
1507	sub cf::object::player::leave_link {	2290	sub cf::object::player::leave_link {
1508	my ($self, $map, $x, $y) = @_;	2291	my ($self, $map, $x, $y) = @_;
		2292
		2293	return unless $self->contr->active;
1509		2294
1510	my $link_pos = delete $self->{_link_pos};	2295	my $link_pos = delete $self->{_link_pos};
1511		2296
1512	unless ($map) {	2297	unless ($map) {
1513	# restore original map position	2298	# restore original map position
1514	($map, $x, $y) = @{ $link_pos || [] };	2299	($map, $x, $y) = @{ $link_pos || [] };
1515	$map = cf::map::find_map $map;	2300	$map = cf::map::find $map;
1516		2301
1517	unless ($map) {	2302	unless ($map) {
1518	($map, $x, $y) = @$EMERGENCY_POSITION;	2303	($map, $x, $y) = @$EMERGENCY_POSITION;
1519	$map = cf::map::find_map $map	2304	$map = cf::map::find $map
1520	or die "FATAL: cannot load emergency map\n";	2305	or die "FATAL: cannot load emergency map\n";
1521	}	2306	}
1522	}	2307	}
1523		2308
1524	($x, $y) = (-1, -1)	2309	($x, $y) = (-1, -1)
…		…
1527	# use -1 or undef as default coordinates, not 0, 0	2312	# use -1 or undef as default coordinates, not 0, 0
1528	($x, $y) = ($map->enter_x, $map->enter_y)	2313	($x, $y) = ($map->enter_x, $map->enter_y)
1529	if $x <=0 && $y <= 0;	2314	if $x <=0 && $y <= 0;
1530		2315
1531	$map->load;	2316	$map->load;
		2317	$map->load_diag;
1532		2318
		2319	return unless $self->contr->active;
1533	$self->activate_recursive;	2320	$self->activate_recursive;
		2321
		2322	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1534	$self->enter_map ($map, $x, $y);	2323	$self->enter_map ($map, $x, $y);
1535	}	2324	}
1536		2325
1537	cf::player->attach (	2326	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1538	on_logout => sub {
1539	my ($pl) = @_;
1540		2327
1541	# abort map switching before logout	2328	Moves the player to the given map-path and coordinates by first freezing
1542	if ($pl->ob->{_link_pos}) {	2329	her, loading and preparing them map, calling the provided $check callback
1543	cf::sync_job {	2330	that has to return the map if sucecssful, and then unfreezes the player on
1544	$pl->ob->leave_link	2331	the new (success) or old (failed) map position. In either case, $done will
1545	};	2332	be called at the end of this process.
1546	}
1547	},
1548	on_login => sub {
1549	my ($pl) = @_;
1550		2333
1551	# try to abort aborted map switching on player login :)
1552	# should happen only on crashes
1553	if ($pl->ob->{_link_pos}) {
1554	$pl->ob->enter_link;
1555	cf::async {
1556	# we need this sleep as the login has a concurrent enter_exit running
1557	# and this sleep increases chances of the player not ending up in scorn
1558	Coro::Timer::sleep 1;
1559	$pl->ob->leave_link;
1560	};
1561	}
1562	},
1563	);
1564
1565	=item $player_object->goto_map ($path, $x, $y)
1566
1567	=cut	2334	=cut
1568		2335
		2336	our $GOTOGEN;
		2337
1569	sub cf::object::player::goto_map {	2338	sub cf::object::player::goto {
1570	my ($self, $path, $x, $y) = @_;	2339	my ($self, $path, $x, $y, $check, $done) = @_;
		2340
		2341	# do generation counting so two concurrent goto's will be executed in-order
		2342	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1571		2343
1572	$self->enter_link;	2344	$self->enter_link;
1573		2345
1574	(cf::async {	2346	(async {
1575	$path = new cf::path $path;	2347	my $map = eval {
1576
1577	my $map = cf::map::find_map $path->as_string;	2348	my $map = cf::map::find $path;
		2349
		2350	if ($map) {
1578	$map = $map->customise_for ($self) if $map;	2351	$map = $map->customise_for ($self);
1579		2352	$map = $check->($map) if $check && $map;
1580	# warn "entering ", $map->path, " at ($x, $y)\n"	2353	} else {
1581	# if $map;
1582
1583	$map or $self->message ("The exit is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2354	$self->message ("The exit to '$path' is closed", cf::NDI_UNIQUE | cf::NDI_RED);
		2355	}
1584		2356
		2357	$map
		2358	};
		2359
		2360	if ($@) {
		2361	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2362	LOG llevError | logBacktrace, Carp::longmess $@;
		2363	}
		2364
		2365	if ($gen == $self->{_goto_generation}) {
		2366	delete $self->{_goto_generation};
1585	$self->leave_link ($map, $x, $y);	2367	$self->leave_link ($map, $x, $y);
		2368	}
		2369
		2370	$done->() if $done;
1586	})->prio (1);	2371	})->prio (1);
1587	}	2372	}
1588		2373
1589	=item $player_object->enter_exit ($exit_object)	2374	=item $player_object->enter_exit ($exit_object)
1590		2375
…		…
1592		2377
1593	sub parse_random_map_params {	2378	sub parse_random_map_params {
1594	my ($spec) = @_;	2379	my ($spec) = @_;
1595		2380
1596	my $rmp = { # defaults	2381	my $rmp = { # defaults
1597	xsize => 10,	2382	xsize => (cf::rndm 15, 40),
1598	ysize => 10,	2383	ysize => (cf::rndm 15, 40),
		2384	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2385	#layout => string,
1599	};	2386	};
1600		2387
1601	for (split /\n/, $spec) {	2388	for (split /\n/, $spec) {
1602	my ($k, $v) = split /\s+/, $_, 2;	2389	my ($k, $v) = split /\s+/, $_, 2;
1603		2390
…		…
1607	$rmp	2394	$rmp
1608	}	2395	}
1609		2396
1610	sub prepare_random_map {	2397	sub prepare_random_map {
1611	my ($exit) = @_;	2398	my ($exit) = @_;
		2399
		2400	my $guard = cf::lock_acquire "exit_prepare:$exit";
1612		2401
1613	# all this does is basically replace the /! path by	2402	# all this does is basically replace the /! path by
1614	# a new random map path (?random/...) with a seed	2403	# a new random map path (?random/...) with a seed
1615	# that depends on the exit object	2404	# that depends on the exit object
1616		2405
1617	my $rmp = parse_random_map_params $exit->msg;	2406	my $rmp = parse_random_map_params $exit->msg;
1618		2407
1619	if ($exit->map) {	2408	if ($exit->map) {
1620	$rmp->{region} = $exit->map->region_name;	2409	$rmp->{region} = $exit->region->name;
1621	$rmp->{origin_map} = $exit->map->path;	2410	$rmp->{origin_map} = $exit->map->path;
1622	$rmp->{origin_x} = $exit->x;	2411	$rmp->{origin_x} = $exit->x;
1623	$rmp->{origin_y} = $exit->y;	2412	$rmp->{origin_y} = $exit->y;
1624	}	2413	}
1625		2414
1626	$rmp->{random_seed} ||= $exit->random_seed;	2415	$rmp->{random_seed} ||= $exit->random_seed;
1627		2416
1628	my $data = cf::to_json $rmp;	2417	my $data = cf::to_json $rmp;
1629	my $md5 = Digest::MD5::md5_hex $data;	2418	my $md5 = Digest::MD5::md5_hex $data;
		2419	my $meta = "$RANDOMDIR/$md5.meta";
1630		2420
1631	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2421	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1632	aio_write $fh, 0, (length $data), $data, 0;	2422	aio_write $fh, 0, (length $data), $data, 0;
		2423	undef $fh;
		2424	aio_rename "$meta~", $meta;
1633		2425
1634	$exit->slaying ("?random/$md5");	2426	$exit->slaying ("?random/$md5");
1635	$exit->msg (undef);	2427	$exit->msg (undef);
1636	}	2428	}
1637	}	2429	}
…		…
1639	sub cf::object::player::enter_exit {	2431	sub cf::object::player::enter_exit {
1640	my ($self, $exit) = @_;	2432	my ($self, $exit) = @_;
1641		2433
1642	return unless $self->type == cf::PLAYER;	2434	return unless $self->type == cf::PLAYER;
1643		2435
		2436	if ($exit->slaying eq "/!") {
		2437	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2438	# the problem is that $exit might not survive long enough
		2439	# so it needs to be done right now, right here
		2440	cf::sync_job { prepare_random_map $exit };
		2441	}
		2442
		2443	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2444	my $hp = $exit->stats->hp;
		2445	my $sp = $exit->stats->sp;
		2446
1644	$self->enter_link;	2447	$self->enter_link;
1645		2448
		2449	# if exit is damned, update players death & WoR home-position
		2450	$self->contr->savebed ($slaying, $hp, $sp)
		2451	if $exit->flag (FLAG_DAMNED);
		2452
1646	(cf::async {	2453	(async {
		2454	$self->deactivate_recursive; # just to be sure
1647	unless (eval {	2455	unless (eval {
1648	prepare_random_map $exit	2456	$self->goto ($slaying, $hp, $sp);
1649	if $exit->slaying eq "/!";
1650
1651	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1652	$self->goto_map ($path, $exit->stats->hp, $exit->stats->sp);
1653		2457
1654	1;	2458	1;
1655	}) {	2459	}) {
1656	$self->message ("Something went wrong deep within the crossfire server. "	2460	$self->message ("Something went wrong deep within the crossfire server. "
1657	. "I'll try to bring you back to the map you were before. "	2461	. "I'll try to bring you back to the map you were before. "
1658	. "Please report this to the dungeon master",	2462	. "Please report this to the dungeon master!",
1659	cf::NDI_UNIQUE | cf::NDI_RED);	2463	cf::NDI_UNIQUE | cf::NDI_RED);
1660		2464
1661	warn "ERROR in enter_exit: $@";	2465	warn "ERROR in enter_exit: $@";
1662	$self->leave_link;	2466	$self->leave_link;
1663	}	2467	}
1664	})->prio (1);	2468	})->prio (1);
…		…
1677		2481
1678	sub cf::client::send_drawinfo {	2482	sub cf::client::send_drawinfo {
1679	my ($self, $text, $flags) = @_;	2483	my ($self, $text, $flags) = @_;
1680		2484
1681	utf8::encode $text;	2485	utf8::encode $text;
1682	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2486	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1683	}	2487	}
1684		2488
		2489	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2490
		2491	Send a drawinfo or msg packet to the client, formatting the msg for the
		2492	client if neccessary. C<$type> should be a string identifying the type of
		2493	the message, with C<log> being the default. If C<$color> is negative, suppress
		2494	the message unless the client supports the msg packet.
		2495
		2496	=cut
		2497
		2498	sub cf::client::send_msg {
		2499	my ($self, $channel, $msg, $color, @extra) = @_;
		2500
		2501	$msg = $self->pl->expand_cfpod ($msg);
		2502
		2503	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2504
		2505	if (ref $channel) {
		2506	# send meta info to client, if not yet sent
		2507	unless (exists $self->{channel}{$channel->{id}}) {
		2508	$self->{channel}{$channel->{id}} = $channel;
		2509	$self->ext_msg (channel_info => $channel);
		2510	}
		2511
		2512	$channel = $channel->{id};
		2513	}
		2514
		2515	return unless @extra || length $msg;
		2516
		2517	if ($self->can_msg) {
		2518	# default colour, mask it out
		2519	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2520	if $color & cf::NDI_DEF;
		2521
		2522	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2523	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2524	} else {
		2525	if ($color >= 0) {
		2526	# replace some tags by gcfclient-compatible ones
		2527	for ($msg) {
		2528	1 while
		2529	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2530	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2531	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2532	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2533	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2534	}
		2535
		2536	$color &= cf::NDI_COLOR_MASK;
		2537
		2538	utf8::encode $msg;
		2539
		2540	if (0 && $msg =~ /\[/) {
		2541	# COMMAND/INFO
		2542	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2543	} else {
		2544	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2545	$self->send_packet ("drawinfo $color $msg")
		2546	}
		2547	}
		2548	}
		2549	}
		2550
		2551	=item $client->ext_msg ($type, @msg)
		2552
		2553	Sends an ext event to the client.
		2554
		2555	=cut
		2556
		2557	sub cf::client::ext_msg($$@) {
		2558	my ($self, $type, @msg) = @_;
		2559
		2560	my $extcmd = $self->extcmd;
		2561
		2562	if ($extcmd == 2) {
		2563	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2564	} elsif ($extcmd == 1) { # TODO: remove
		2565	push @msg, msgtype => "event_$type";
		2566	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2567	}
		2568	}
1685		2569
1686	=item $success = $client->query ($flags, "text", \&cb)	2570	=item $success = $client->query ($flags, "text", \&cb)
1687		2571
1688	Queues a query to the client, calling the given callback with	2572	Queues a query to the client, calling the given callback with
1689	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2573	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1690	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2574	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1691		2575
1692	Queries can fail, so check the return code. Or don't, as queries will become	2576	Queries can fail, so check the return code. Or don't, as queries will
1693	reliable at some point in the future.	2577	become reliable at some point in the future.
1694		2578
1695	=cut	2579	=cut
1696		2580
1697	sub cf::client::query {	2581	sub cf::client::query {
1698	my ($self, $flags, $text, $cb) = @_;	2582	my ($self, $flags, $text, $cb) = @_;
…		…
1706	utf8::encode $text;	2590	utf8::encode $text;
1707	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2591	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1708		2592
1709	$self->send_packet ($self->{query_queue}[0][0])	2593	$self->send_packet ($self->{query_queue}[0][0])
1710	if @{ $self->{query_queue} } == 1;	2594	if @{ $self->{query_queue} } == 1;
		2595
		2596	1
1711	}	2597	}
1712		2598
1713	cf::client->attach (	2599	cf::client->attach (
		2600	on_connect => sub {
		2601	my ($ns) = @_;
		2602
		2603	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2604	},
1714	on_reply => sub {	2605	on_reply => sub {
1715	my ($ns, $msg) = @_;	2606	my ($ns, $msg) = @_;
1716		2607
1717	# this weird shuffling is so that direct followup queries	2608	# this weird shuffling is so that direct followup queries
1718	# get handled first	2609	# get handled first
1719	my $queue = delete $ns->{query_queue}	2610	my $queue = delete $ns->{query_queue}
1720	or return; # be conservative, not sure how that can happen, but we saw a crash here	2611	or return; # be conservative, not sure how that can happen, but we saw a crash here
1721		2612
1722	(shift @$queue)->[1]->($msg);	2613	(shift @$queue)->[1]->($msg);
		2614	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1723		2615
1724	push @{ $ns->{query_queue} }, @$queue;	2616	push @{ $ns->{query_queue} }, @$queue;
1725		2617
1726	if (@{ $ns->{query_queue} } == @$queue) {	2618	if (@{ $ns->{query_queue} } == @$queue) {
1727	if (@$queue) {	2619	if (@$queue) {
…		…
1729	} else {	2621	} else {
1730	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2622	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1731	}	2623	}
1732	}	2624	}
1733	},	2625	},
		2626	on_exticmd => sub {
		2627	my ($ns, $buf) = @_;
		2628
		2629	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2630
		2631	if (ref $msg) {
		2632	my ($type, $reply, @payload) =
		2633	"ARRAY" eq ref $msg
		2634	? @$msg
		2635	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2636
		2637	if (my $cb = $EXTICMD{$type}) {
		2638	my @reply = $cb->($ns, @payload);
		2639
		2640	$ns->ext_reply ($reply, @reply)
		2641	if $reply;
		2642	}
		2643	} else {
		2644	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2645	}
		2646
		2647	cf::override;
		2648	},
1734	);	2649	);
1735		2650
1736	=item $client->coro (\&cb)	2651	=item $client->async (\&cb)
1737		2652
1738	Create a new coroutine, running the specified callback. The coroutine will	2653	Create a new coroutine, running the specified callback. The coroutine will
1739	be automatically cancelled when the client gets destroyed (e.g. on logout,	2654	be automatically cancelled when the client gets destroyed (e.g. on logout,
1740	or loss of connection).	2655	or loss of connection).
1741		2656
1742	=cut	2657	=cut
1743		2658
1744	sub cf::client::coro {	2659	sub cf::client::async {
1745	my ($self, $cb) = @_;	2660	my ($self, $cb) = @_;
1746		2661
1747	my $coro = &cf::async ($cb);	2662	my $coro = &Coro::async ($cb);
1748		2663
1749	$coro->on_destroy (sub {	2664	$coro->on_destroy (sub {
1750	delete $self->{_coro}{$coro+0};	2665	delete $self->{_coro}{$coro+0};
1751	});	2666	});
1752		2667
…		…
1779	our $safe = new Safe "safe";	2694	our $safe = new Safe "safe";
1780	our $safe_hole = new Safe::Hole;	2695	our $safe_hole = new Safe::Hole;
1781		2696
1782	$SIG{FPE} = 'IGNORE';	2697	$SIG{FPE} = 'IGNORE';
1783		2698
1784	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	2699	$safe->permit_only (Opcode::opset qw(
		2700	:base_core :base_mem :base_orig :base_math
		2701	grepstart grepwhile mapstart mapwhile
		2702	sort time
		2703	));
1785		2704
1786	# here we export the classes and methods available to script code	2705	# here we export the classes and methods available to script code
1787		2706
1788	=pod	2707	=pod
1789		2708
1790	The following fucntions and emthods are available within a safe environment:	2709	The following functions and methods are available within a safe environment:
1791		2710
1792	cf::object contr pay_amount pay_player map	2711	cf::object
		2712	contr pay_amount pay_player map x y force_find force_add
		2713	insert remove name archname title slaying race
		2714
1793	cf::object::player player	2715	cf::object::player
1794	cf::player peaceful	2716	player
1795	cf::map trigger	2717
		2718	cf::player
		2719	peaceful
		2720
		2721	cf::map
		2722	trigger
1796		2723
1797	=cut	2724	=cut
1798		2725
1799	for (	2726	for (
1800	["cf::object" => qw(contr pay_amount pay_player map)],	2727	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		2728	insert remove inv name archname title slaying race)],
1801	["cf::object::player" => qw(player)],	2729	["cf::object::player" => qw(player)],
1802	["cf::player" => qw(peaceful)],	2730	["cf::player" => qw(peaceful)],
1803	["cf::map" => qw(trigger)],	2731	["cf::map" => qw(trigger)],
1804	) {	2732	) {
1805	no strict 'refs';	2733	no strict 'refs';
…		…
1876	=back	2804	=back
1877		2805
1878	=cut	2806	=cut
1879		2807
1880	#############################################################################	2808	#############################################################################
		2809	# the server's init and main functions
1881		2810
1882	=head2 EXTENSION DATABASE SUPPORT	2811	sub load_facedata($) {
		2812	my ($path) = @_;
1883		2813
1884	Crossfire maintains a very simple database for extension use. It can	2814	warn "loading facedata from $path\n";
1885	currently store anything that can be serialised using Storable, which
1886	excludes objects.
1887		2815
1888	The parameter C<$family> should best start with the name of the extension	2816	my $facedata;
1889	using it, it should be unique.	2817	0 < aio_load $path, $facedata
		2818	or die "$path: $!";
1890		2819
1891	=over 4	2820	$facedata = Coro::Storable::thaw $facedata;
1892		2821
1893	=item $hashref = cf::db_get $family	2822	$facedata->{version} == 2
		2823	or cf::cleanup "$path: version mismatch, cannot proceed.";
1894		2824
1895	Return a hashref for use by the extension C<$family>, which can be
1896	modified. After modifications, you have to call C<cf::db_dirty> or
1897	C<cf::db_sync>.
1898
1899	=item $value = cf::db_get $family => $key
1900
1901	Returns a single value from the database
1902
1903	=item cf::db_put $family => $hashref
1904
1905	Stores the given family hashref into the database. Updates are delayed, if
1906	you want the data to be synced to disk immediately, use C<cf::db_sync>.
1907
1908	=item cf::db_put $family => $key => $value
1909
1910	Stores the given C<$value> in the family hash. Updates are delayed, if you
1911	want the data to be synced to disk immediately, use C<cf::db_sync>.
1912
1913	=item cf::db_dirty
1914
1915	Marks the database as dirty, to be updated at a later time.
1916
1917	=item cf::db_sync
1918
1919	Immediately write the database to disk I<if it is dirty>.
1920
1921	=cut
1922
1923	our $DB;
1924
1925	{
1926	my $path = cf::localdir . "/database.pst";
1927
1928	sub db_load() {
1929	$DB = stat $path ? Storable::retrieve $path : { };
1930	}	2825	{
		2826	my $faces = $facedata->{faceinfo};
1931		2827
1932	my $pid;	2828	while (my ($face, $info) = each %$faces) {
		2829	my $idx = (cf::face::find $face) || cf::face::alloc $face;
		2830	cf::face::set_visibility $idx, $info->{visibility};
		2831	cf::face::set_magicmap $idx, $info->{magicmap};
		2832	cf::face::set_data $idx, 0, $info->{data32}, $info->{chksum32};
		2833	cf::face::set_data $idx, 1, $info->{data64}, $info->{chksum64};
1933		2834
1934	sub db_save() {	2835	cf::cede_to_tick;
1935	waitpid $pid, 0 if $pid;
1936	if (0 == ($pid = fork)) {
1937	$DB->{_meta}{version} = 1;
1938	Storable::nstore $DB, "$path~";
1939	rename "$path~", $path;
1940	cf::_exit 0 if defined $pid;
1941	}
1942	}
1943
1944	my $dirty;
1945
1946	sub db_sync() {
1947	db_save if $dirty;
1948	undef $dirty;
1949	}
1950
1951	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
1952	db_sync;
1953	});
1954
1955	sub db_dirty() {
1956	$dirty = 1;
1957	$idle->start;
1958	}
1959
1960	sub db_get($;$) {
1961	@_ >= 2
1962	? $DB->{$_[0]}{$_[1]}
1963	: ($DB->{$_[0]} ||= { })
1964	}
1965
1966	sub db_put($$;$) {
1967	if (@_ >= 3) {
1968	$DB->{$_[0]}{$_[1]} = $_[2];
1969	} else {
1970	$DB->{$_[0]} = $_[1];
1971	}
1972	db_dirty;
1973	}
1974
1975	cf::global->attach (
1976	prio => 10000,
1977	on_cleanup => sub {
1978	db_sync;
1979	},	2836	}
1980	);
1981	}
1982		2837
1983	#############################################################################	2838	while (my ($face, $info) = each %$faces) {
1984	# the server's main()	2839	next unless $info->{smooth};
		2840	my $idx = cf::face::find $face
		2841	or next;
		2842	if (my $smooth = cf::face::find $info->{smooth}) {
		2843	cf::face::set_smooth $idx, $smooth;
		2844	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		2845	} else {
		2846	warn "smooth face '$info->{smooth}' not found for face '$face'";
		2847	}
		2848
		2849	cf::cede_to_tick;
		2850	}
		2851	}
		2852
		2853	{
		2854	my $anims = $facedata->{animinfo};
		2855
		2856	while (my ($anim, $info) = each %$anims) {
		2857	cf::anim::set $anim, $info->{frames}, $info->{facings};
		2858	cf::cede_to_tick;
		2859	}
		2860
		2861	cf::anim::invalidate_all; # d'oh
		2862	}
		2863
		2864	{
		2865	# TODO: for gcfclient pleasure, we should give resources
		2866	# that gcfclient doesn't grok a >10000 face index.
		2867	my $res = $facedata->{resource};
		2868	my $enc = JSON::XS->new->utf8->canonical;
		2869
		2870	my $soundconf = delete $res->{"res/sound.conf"};
		2871
		2872	while (my ($name, $info) = each %$res) {
		2873	my $meta = $enc->encode ({
		2874	name => $name,
		2875	%{ $info->{meta} || {} },
		2876	});
		2877
		2878	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		2879
		2880	if ($info->{type} & 1) {
		2881	# prepend meta info
		2882
		2883	my $data = pack "(w/a*)*", $meta, $info->{data};
		2884	my $chk = Digest::MD5::md5 "$info->{chksum},$meta"; # mangle data checksum and metadata
		2885
		2886	cf::face::set_data $idx, 0, $data, $chk;
		2887	} else {
		2888	cf::face::set_data $idx, 0, $info->{data}, $info->{chksum};
		2889	}
		2890
		2891	cf::face::set_type $idx, $info->{type};
		2892
		2893	cf::cede_to_tick;
		2894	}
		2895
		2896	if ($soundconf) {
		2897	$soundconf = $enc->decode (delete $soundconf->{data});
		2898
		2899	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		2900	my $sound = $soundconf->{compat}[$_]
		2901	or next;
		2902
		2903	my $face = cf::face::find "sound/$sound->[1]";
		2904	cf::sound::set $sound->[0] => $face;
		2905	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		2906	}
		2907
		2908	while (my ($k, $v) = each %{$soundconf->{event}}) {
		2909	my $face = cf::face::find "sound/$v";
		2910	cf::sound::set $k => $face;
		2911	}
		2912	}
		2913	}
		2914
		2915	1
		2916	}
		2917
		2918	register_exticmd fx_want => sub {
		2919	my ($ns, $want) = @_;
		2920
		2921	while (my ($k, $v) = each %$want) {
		2922	$ns->fx_want ($k, $v);
		2923	}
		2924	};
		2925
		2926	sub reload_regions {
		2927	load_resource_file "$MAPDIR/regions"
		2928	or die "unable to load regions file\n";
		2929
		2930	for (cf::region::list) {
		2931	$_->{match} = qr/$_->{match}/
		2932	if exists $_->{match};
		2933	}
		2934	}
		2935
		2936	sub reload_facedata {
		2937	load_facedata "$DATADIR/facedata"
		2938	or die "unable to load facedata\n";
		2939	}
		2940
		2941	sub reload_archetypes {
		2942	load_resource_file "$DATADIR/archetypes"
		2943	or die "unable to load archetypes\n";
		2944	#d# NEED to laod twice to resolve forward references
		2945	# this really needs to be done in an extra post-pass
		2946	# (which needs to be synchronous, so solve it differently)
		2947	load_resource_file "$DATADIR/archetypes"
		2948	or die "unable to load archetypes\n";
		2949	}
		2950
		2951	sub reload_treasures {
		2952	load_resource_file "$DATADIR/treasures"
		2953	or die "unable to load treasurelists\n";
		2954	}
		2955
		2956	sub reload_resources {
		2957	warn "reloading resource files...\n";
		2958
		2959	reload_regions;
		2960	reload_facedata;
		2961	#reload_archetypes;#d#
		2962	reload_archetypes;
		2963	reload_treasures;
		2964
		2965	warn "finished reloading resource files\n";
		2966	}
		2967
		2968	sub init {
		2969	reload_resources;
		2970	}
1985		2971
1986	sub cfg_load {	2972	sub cfg_load {
1987	open my $fh, "<:utf8", cf::confdir . "/config"	2973	open my $fh, "<:utf8", "$CONFDIR/config"
1988	or return;	2974	or return;
1989		2975
1990	local $/;	2976	local $/;
1991	*CFG = YAML::Syck::Load <$fh>;	2977	*CFG = YAML::Syck::Load <$fh>;
1992		2978
1993	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];	2979	$EMERGENCY_POSITION = $CFG{emergency_position} || ["/world/world_105_115", 5, 37];
1994		2980
		2981	$cf::map::MAX_RESET = $CFG{map_max_reset} if exists $CFG{map_max_reset};
		2982	$cf::map::DEFAULT_RESET = $CFG{map_default_reset} if exists $CFG{map_default_reset};
		2983
1995	if (exists $CFG{mlockall}) {	2984	if (exists $CFG{mlockall}) {
1996	eval {	2985	eval {
1997	$CFG{mlockall} ? &mlockall : &munlockall	2986	$CFG{mlockall} ? eval "mlockall()" : eval "munlockall()"
1998	and die "WARNING: m(un)lockall failed: $!\n";	2987	and die "WARNING: m(un)lockall failed: $!\n";
1999	};	2988	};
2000	warn $@ if $@;	2989	warn $@ if $@;
2001	}	2990	}
2002	}	2991	}
2003		2992
2004	sub main {	2993	sub main {
2005	# we must not ever block the main coroutine	2994	# we must not ever block the main coroutine
2006	local $Coro::idle = sub {	2995	local $Coro::idle = sub {
2007	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	2996	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2008	(Coro::unblock_sub {	2997	(async {
2009	Event::one_event;	2998	Event::one_event;
2010	})->();	2999	})->prio (Coro::PRIO_MAX);
2011	};	3000	};
2012		3001
2013	cfg_load;	3002	cfg_load;
2014	db_load;	3003	db_init;
2015	load_extensions;	3004	load_extensions;
		3005
		3006	$TICK_WATCHER->start;
2016	Event::loop;	3007	Event::loop;
2017	}	3008	}
2018		3009
2019	#############################################################################	3010	#############################################################################
2020	# initialisation	3011	# initialisation and cleanup
2021		3012
		3013	# install some emergency cleanup handlers
		3014	BEGIN {
		3015	for my $signal (qw(INT HUP TERM)) {
		3016	Event->signal (
		3017	reentrant => 0,
		3018	data => WF_AUTOCANCEL,
		3019	signal => $signal,
		3020	prio => 0,
		3021	cb => sub {
		3022	cf::cleanup "SIG$signal";
		3023	},
		3024	);
		3025	}
		3026	}
		3027
		3028	sub write_runtime {
		3029	my $runtime = "$LOCALDIR/runtime";
		3030
		3031	# first touch the runtime file to show we are still running:
		3032	# the fsync below can take a very very long time.
		3033
		3034	IO::AIO::aio_utime $runtime, undef, undef;
		3035
		3036	my $guard = cf::lock_acquire "write_runtime";
		3037
		3038	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3039	or return;
		3040
		3041	my $value = $cf::RUNTIME + 90 + 10;
		3042	# 10 is the runtime save interval, for a monotonic clock
		3043	# 60 allows for the watchdog to kill the server.
		3044
		3045	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3046	and return;
		3047
		3048	# always fsync - this file is important
		3049	aio_fsync $fh
		3050	and return;
		3051
		3052	# touch it again to show we are up-to-date
		3053	aio_utime $fh, undef, undef;
		3054
		3055	close $fh
		3056	or return;
		3057
		3058	aio_rename "$runtime~", $runtime
		3059	and return;
		3060
		3061	warn "runtime file written.\n";
		3062
		3063	1
		3064	}
		3065
		3066	sub emergency_save() {
		3067	my $freeze_guard = cf::freeze_mainloop;
		3068
		3069	warn "enter emergency perl save\n";
		3070
		3071	cf::sync_job {
		3072	# use a peculiar iteration method to avoid tripping on perl
		3073	# refcount bugs in for. also avoids problems with players
		3074	# and maps saved/destroyed asynchronously.
		3075	warn "begin emergency player save\n";
		3076	for my $login (keys %cf::PLAYER) {
		3077	my $pl = $cf::PLAYER{$login} or next;
		3078	$pl->valid or next;
		3079	$pl->save;
		3080	}
		3081	warn "end emergency player save\n";
		3082
		3083	warn "begin emergency map save\n";
		3084	for my $path (keys %cf::MAP) {
		3085	my $map = $cf::MAP{$path} or next;
		3086	$map->valid or next;
		3087	$map->save;
		3088	}
		3089	warn "end emergency map save\n";
		3090
		3091	warn "begin emergency database checkpoint\n";
		3092	BDB::db_env_txn_checkpoint $DB_ENV;
		3093	warn "end emergency database checkpoint\n";
		3094	};
		3095
		3096	warn "leave emergency perl save\n";
		3097	}
		3098
		3099	sub post_cleanup {
		3100	my ($make_core) = @_;
		3101
		3102	warn Carp::longmess "post_cleanup backtrace"
		3103	if $make_core;
		3104	}
		3105
2022	sub reload() {	3106	sub do_reload_perl() {
2023	# can/must only be called in main	3107	# can/must only be called in main
2024	if ($Coro::current != $Coro::main) {	3108	if ($Coro::current != $Coro::main) {
2025	warn "can only reload from main coroutine\n";	3109	warn "can only reload from main coroutine";
2026	return;	3110	return;
2027	}	3111	}
2028		3112
2029	warn "reloading...";	3113	warn "reloading...";
2030		3114
2031	local $FREEZE = 1;	3115	warn "entering sync_job";
		3116
		3117	cf::sync_job {
		3118	cf::write_runtime; # external watchdog should not bark
2032	cf::emergency_save;	3119	cf::emergency_save;
		3120	cf::write_runtime; # external watchdog should not bark
2033		3121
2034	eval {	3122	warn "syncing database to disk";
		3123	BDB::db_env_txn_checkpoint $DB_ENV;
		3124
2035	# if anything goes wrong in here, we should simply crash as we already saved	3125	# if anything goes wrong in here, we should simply crash as we already saved
2036		3126
2037	# cancel all watchers	3127	warn "cancelling all WF_AUTOCANCEL watchers";
2038	for (Event::all_watchers) {	3128	for (Event::all_watchers) {
2039	$_->cancel if $_->data & WF_AUTOCANCEL;	3129	$_->cancel if $_->data & WF_AUTOCANCEL;
2040	}	3130	}
2041		3131
		3132	warn "flushing outstanding aio requests";
		3133	for (;;) {
		3134	BDB::flush;
		3135	IO::AIO::flush;
		3136	Coro::cede;
		3137	last unless IO::AIO::nreqs || BDB::nreqs;
		3138	warn "iterate...";
		3139	}
		3140
		3141	++$RELOAD;
		3142
2042	# cancel all extension coros	3143	warn "cancelling all extension coros";
2043	$_->cancel for values %EXT_CORO;	3144	$_->cancel for values %EXT_CORO;
2044	%EXT_CORO = ();	3145	%EXT_CORO = ();
2045		3146
2046	# unload all extensions	3147	warn "removing commands";
2047	for (@exts) {	3148	%COMMAND = ();
		3149
		3150	warn "removing ext/exti commands";
		3151	%EXTCMD = ();
		3152	%EXTICMD = ();
		3153
		3154	warn "unloading/nuking all extensions";
		3155	for my $pkg (@EXTS) {
2048	warn "unloading <$_>";	3156	warn "... unloading $pkg";
2049	unload_extension $_;	3157
		3158	if (my $cb = $pkg->can ("unload")) {
		3159	eval {
		3160	$cb->($pkg);
		3161	1
		3162	} or warn "$pkg unloaded, but with errors: $@";
2050	}	3163	}
2051		3164
		3165	warn "... nuking $pkg";
		3166	Symbol::delete_package $pkg;
		3167	}
		3168
2052	# unload all modules loaded from $LIBDIR	3169	warn "unloading all perl modules loaded from $LIBDIR";
2053	while (my ($k, $v) = each %INC) {	3170	while (my ($k, $v) = each %INC) {
2054	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3171	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2055		3172
2056	warn "removing <$k>";	3173	warn "... unloading $k";
2057	delete $INC{$k};	3174	delete $INC{$k};
2058		3175
2059	$k =~ s/\.pm$//;	3176	$k =~ s/\.pm$//;
2060	$k =~ s/\//::/g;	3177	$k =~ s/\//::/g;
2061		3178
…		…
2064	}	3181	}
2065		3182
2066	Symbol::delete_package $k;	3183	Symbol::delete_package $k;
2067	}	3184	}
2068		3185
2069	# sync database to disk
2070	cf::db_sync;
2071	IO::AIO::flush;
2072
2073	# get rid of safe::, as good as possible	3186	warn "getting rid of safe::, as good as possible";
2074	Symbol::delete_package "safe::$_"	3187	Symbol::delete_package "safe::$_"
2075	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3188	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2076		3189
2077	# remove register_script_function callbacks
2078	# TODO
2079
2080	# unload cf.pm "a bit"	3190	warn "unloading cf.pm \"a bit\"";
2081	delete $INC{"cf.pm"};	3191	delete $INC{"cf.pm"};
		3192	delete $INC{"cf/pod.pm"};
2082		3193
2083	# don't, removes xs symbols, too,	3194	# don't, removes xs symbols, too,
2084	# and global variables created in xs	3195	# and global variables created in xs
2085	#Symbol::delete_package __PACKAGE__;	3196	#Symbol::delete_package __PACKAGE__;
2086		3197
2087	# reload cf.pm	3198	warn "unload completed, starting to reload now";
		3199
2088	warn "reloading cf.pm";	3200	warn "reloading cf.pm";
2089	require cf;	3201	require cf;
2090	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3202	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2091		3203
2092	# load config and database again	3204	warn "loading config and database again";
2093	cf::cfg_load;	3205	cf::cfg_load;
2094	cf::db_load;
2095		3206
2096	# load extensions
2097	warn "load extensions";	3207	warn "loading extensions";
2098	cf::load_extensions;	3208	cf::load_extensions;
2099		3209
2100	# reattach attachments to objects	3210	warn "reattaching attachments to objects/players";
2101	warn "reattach";	3211	_global_reattach; # objects, sockets
2102	_global_reattach;	3212	warn "reattaching attachments to maps";
2103	};	3213	reattach $_ for values %MAP;
		3214	warn "reattaching attachments to players";
		3215	reattach $_ for values %PLAYER;
2104		3216
2105	if ($@) {	3217	warn "leaving sync_job";
		3218
		3219	1
		3220	} or do {
2106	warn $@;	3221	warn $@;
2107	warn "error while reloading, exiting.";	3222	warn "error while reloading, exiting.";
2108	exit 1;	3223	exit 1;
2109	}	3224	};
2110		3225
2111	warn "reloaded successfully";	3226	warn "reloaded";
2112	};	3227	};
2113		3228
2114	#############################################################################	3229	our $RELOAD_WATCHER; # used only during reload
2115		3230
2116	unless ($LINK_MAP) {	3231	sub reload_perl() {
2117	$LINK_MAP = cf::map::new;	3232	# doing reload synchronously and two reloads happen back-to-back,
		3233	# coro crashes during coro_state_free->destroy here.
2118		3234
2119	$LINK_MAP->width (41);	3235	$RELOAD_WATCHER ||= Event->timer (
2120	$LINK_MAP->height (41);	3236	reentrant => 0,
2121	$LINK_MAP->alloc;
2122	$LINK_MAP->path ("{link}");
2123	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2124	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2125
2126	# dirty hack because... archetypes are not yet loaded
2127	Event->timer (
2128	after => 2,	3237	after => 0,
		3238	data => WF_AUTOCANCEL,
2129	cb => sub {	3239	cb => sub {
2130	$_[0]->w->cancel;	3240	do_reload_perl;
2131		3241	undef $RELOAD_WATCHER;
2132	# provide some exits "home"
2133	my $exit = cf::object::new "exit";
2134
2135	$exit->slaying ($EMERGENCY_POSITION->[0]);
2136	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2137	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2138
2139	$LINK_MAP->insert ($exit->clone, 19, 19);
2140	$LINK_MAP->insert ($exit->clone, 19, 20);
2141	$LINK_MAP->insert ($exit->clone, 19, 21);
2142	$LINK_MAP->insert ($exit->clone, 20, 19);
2143	$LINK_MAP->insert ($exit->clone, 20, 21);
2144	$LINK_MAP->insert ($exit->clone, 21, 19);
2145	$LINK_MAP->insert ($exit->clone, 21, 20);
2146	$LINK_MAP->insert ($exit->clone, 21, 21);
2147
2148	$exit->destroy;
2149	});	3242	},
2150		3243	);
2151	$LINK_MAP->{deny_save} = 1;
2152	$LINK_MAP->{deny_reset} = 1;
2153
2154	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2155	}	3244	}
2156
2157	register "<global>", __PACKAGE__;
2158		3245
2159	register_command "reload" => sub {	3246	register_command "reload" => sub {
2160	my ($who, $arg) = @_;	3247	my ($who, $arg) = @_;
2161		3248
2162	if ($who->flag (FLAG_WIZ)) {	3249	if ($who->flag (FLAG_WIZ)) {
2163	$who->message ("start of reload.");
2164	reload;
2165	$who->message ("end of reload.");	3250	$who->message ("reloading server.");
		3251	async { reload_perl };
2166	}	3252	}
2167	};	3253	};
2168		3254
2169	unshift @INC, $LIBDIR;	3255	unshift @INC, $LIBDIR;
2170		3256
		3257	my $bug_warning = 0;
		3258
		3259	our @WAIT_FOR_TICK;
		3260	our @WAIT_FOR_TICK_BEGIN;
		3261
		3262	sub wait_for_tick {
		3263	return unless $TICK_WATCHER->is_active;
		3264	return if $Coro::current == $Coro::main;
		3265
		3266	my $signal = new Coro::Signal;
		3267	push @WAIT_FOR_TICK, $signal;
		3268	$signal->wait;
		3269	}
		3270
		3271	sub wait_for_tick_begin {
		3272	return unless $TICK_WATCHER->is_active;
		3273	return if $Coro::current == $Coro::main;
		3274
		3275	my $signal = new Coro::Signal;
		3276	push @WAIT_FOR_TICK_BEGIN, $signal;
		3277	$signal->wait;
		3278	}
		3279
		3280	my $min = 1e6;#d#
		3281	my $avg = 10;
2171	$TICK_WATCHER = Event->timer (	3282	$TICK_WATCHER = Event->timer (
2172	reentrant => 0,	3283	reentrant => 0,
		3284	parked => 1,
2173	prio => 0,	3285	prio => 0,
2174	at => $NEXT_TICK || $TICK,	3286	at => $NEXT_TICK || $TICK,
2175	data => WF_AUTOCANCEL,	3287	data => WF_AUTOCANCEL,
2176	cb => sub {	3288	cb => sub {
2177	unless ($FREEZE) {	3289	if ($Coro::current != $Coro::main) {
		3290	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3291	unless ++$bug_warning > 10;
		3292	return;
		3293	}
		3294
		3295	$NOW = $tick_start = Event::time;
		3296
2178	cf::server_tick; # one server iteration	3297	cf::server_tick; # one server iteration
2179	$RUNTIME += $TICK;	3298
		3299	0 && sync_job {#d#
		3300	for(1..10) {
		3301	my $t = Event::time;
		3302	my $map = my $map = new_from_path cf::map "/tmp/x.map"
		3303	or die;
		3304
		3305	$map->width (50);
		3306	$map->height (50);
		3307	$map->alloc;
		3308	$map->_load_objects ("/tmp/x.map", 1);
		3309	my $t = Event::time - $t;
		3310
		3311	#next unless $t < 0.0013;#d#
		3312	if ($t < $min) {
		3313	$min = $t;
		3314	}
		3315	$avg = $avg * 0.99 + $t * 0.01;
		3316	}
		3317	warn "XXXXXXXXXXXXXXXXXX min $min avg $avg\n";#d#
		3318	exit 0;
		3319	# 2007-05-22 02:33:04.569 min 0.00112509727478027 avg 0.0012259249572477
2180	}	3320	};
2181		3321
		3322	$RUNTIME += $TICK;
2182	$NEXT_TICK += $TICK;	3323	$NEXT_TICK += $TICK;
2183		3324
		3325	if ($NOW >= $NEXT_RUNTIME_WRITE) {
		3326	$NEXT_RUNTIME_WRITE = $NOW + 10;
		3327	Coro::async_pool {
		3328	write_runtime
		3329	or warn "ERROR: unable to write runtime file: $!";
		3330	};
		3331	}
		3332
		3333	# my $AFTER = Event::time;
		3334	# warn $AFTER - $NOW;#d#
		3335
		3336	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3337	$sig->send;
		3338	}
		3339	while (my $sig = shift @WAIT_FOR_TICK) {
		3340	$sig->send;
		3341	}
		3342
		3343	$NOW = Event::time;
		3344
2184	# if we are delayed by four ticks or more, skip them all	3345	# if we are delayed by four ticks or more, skip them all
2185	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;	3346	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
2186		3347
2187	$TICK_WATCHER->at ($NEXT_TICK);	3348	$TICK_WATCHER->at ($NEXT_TICK);
2188	$TICK_WATCHER->start;	3349	$TICK_WATCHER->start;
		3350
		3351	$LOAD = ($NOW - $tick_start) / $TICK;
		3352	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3353
		3354	_post_tick;
		3355
		3356
2189	},	3357	},
2190	);	3358	);
2191		3359
		3360	{
2192	IO::AIO::max_poll_time $TICK * 0.2;	3361	BDB::max_poll_time $TICK * 0.1;
2193		3362	$BDB_POLL_WATCHER = Event->io (
2194	Event->io (	3363	reentrant => 0,
2195	fd => IO::AIO::poll_fileno,	3364	fd => BDB::poll_fileno,
2196	poll => 'r',	3365	poll => 'r',
2197	prio => 5,	3366	prio => 0,
2198	data => WF_AUTOCANCEL,
2199	cb => \&IO::AIO::poll_cb,
2200	);
2201
2202	Event->timer (
2203	data => WF_AUTOCANCEL,	3367	data => WF_AUTOCANCEL,
2204	after => 0,	3368	cb => \&BDB::poll_cb,
2205	interval => 10,	3369	);
2206	cb => sub {	3370	BDB::min_parallel 8;
2207	(Coro::unblock_sub {	3371
2208	write_runtime	3372	BDB::set_sync_prepare {
2209	or warn "ERROR: unable to write runtime file: $!";	3373	my $status;
		3374	my $current = $Coro::current;
		3375	(
		3376	sub {
		3377	$status = $!;
		3378	$current->ready; undef $current;
		3379	},
		3380	sub {
		3381	Coro::schedule while defined $current;
		3382	$! = $status;
		3383	},
		3384	)
		3385	};
		3386
		3387	unless ($DB_ENV) {
		3388	$DB_ENV = BDB::db_env_create;
		3389
		3390	cf::sync_job {
		3391	eval {
		3392	BDB::db_env_open
		3393	$DB_ENV,
		3394	$BDBDIR,
		3395	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3396	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3397	0666;
		3398
		3399	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3400
		3401	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC, 1);
		3402	$DB_ENV->set_lk_detect;
		3403	};
		3404
		3405	cf::cleanup "db_env_open(db): $@" if $@;
2210	})->();	3406	};
2211	},	3407	}
2212	);	3408	}
		3409
		3410	{
		3411	IO::AIO::min_parallel 8;
		3412
		3413	undef $Coro::AIO::WATCHER;
		3414	IO::AIO::max_poll_time $TICK * 0.1;
		3415	$AIO_POLL_WATCHER = Event->io (
		3416	reentrant => 0,
		3417	data => WF_AUTOCANCEL,
		3418	fd => IO::AIO::poll_fileno,
		3419	poll => 'r',
		3420	prio => 6,
		3421	cb => \&IO::AIO::poll_cb,
		3422	);
		3423	}
		3424
		3425	my $_log_backtrace;
		3426
		3427	sub _log_backtrace {
		3428	my ($msg, @addr) = @_;
		3429
		3430	$msg =~ s/\n//;
		3431
		3432	# limit the # of concurrent backtraces
		3433	if ($_log_backtrace < 2) {
		3434	++$_log_backtrace;
		3435	async {
		3436	my @bt = fork_call {
		3437	@addr = map { sprintf "%x", $_ } @addr;
		3438	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3439	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3440	or die "addr2line: $!";
		3441
		3442	my @funcs;
		3443	my @res = <$fh>;
		3444	chomp for @res;
		3445	while (@res) {
		3446	my ($func, $line) = splice @res, 0, 2, ();
		3447	push @funcs, "[$func] $line";
		3448	}
		3449
		3450	@funcs
		3451	};
		3452
		3453	LOG llevInfo, "[ABT] $msg\n";
		3454	LOG llevInfo, "[ABT] $_\n" for @bt;
		3455	--$_log_backtrace;
		3456	};
		3457	} else {
		3458	LOG llevInfo, "[ABT] $msg\n";
		3459	LOG llevInfo, "[ABT] [suppressed]\n";
		3460	}
		3461	}
		3462
		3463	# load additional modules
		3464	use cf::pod;
2213		3465
2214	END { cf::emergency_save }	3466	END { cf::emergency_save }
2215		3467
2216	1	3468	1
2217		3469

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