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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.157 by root, Wed Jan 10 01:16:54 2007 UTC vs.
Revision 1.407 by root, Sun Jan 13 09:53:53 2008 UTC

…		…
3	use utf8;	3	use utf8;
4	use strict;	4	use strict;
5		5
6	use Symbol;	6	use Symbol;
7	use List::Util;	7	use List::Util;
8	use Storable;	8	use Socket;
		9	use EV 1.86;
9	use Opcode;	10	use Opcode;
10	use Safe;	11	use Safe;
11	use Safe::Hole;	12	use Safe::Hole;
		13	use Storable ();
12		14
13	use Coro 3.3 ();	15	use Coro 4.32 ();
		16	use Coro::State;
		17	use Coro::Handle;
14	use Coro::Event;	18	use Coro::EV;
15	use Coro::Timer;	19	use Coro::Timer;
16	use Coro::Signal;	20	use Coro::Signal;
17	use Coro::Semaphore;	21	use Coro::Semaphore;
18	use Coro::AIO;	22	use Coro::AIO;
		23	use Coro::BDB;
		24	use Coro::Storable;
		25	use Coro::Util ();
19		26
		27	use JSON::XS 2.01 ();
		28	use BDB ();
20	use Data::Dumper;	29	use Data::Dumper;
21	use Digest::MD5;	30	use Digest::MD5;
22	use Fcntl;	31	use Fcntl;
23	use IO::AIO 2.32 ();
24	use YAML::Syck ();	32	use YAML::Syck ();
		33	use IO::AIO 2.51 ();
25	use Time::HiRes;	34	use Time::HiRes;
		35	use Compress::LZF;
		36	use Digest::MD5 ();
26		37
27	use Event; $Event::Eval = 1; # no idea why this is required, but it is	38	# configure various modules to our taste
28		39	#
29	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload	40	$Storable::canonical = 1; # reduce rsync transfers
		41	Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
		42	Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
30		43
31	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?	44	# work around bug in YAML::Syck - bad news for perl6, will it be as broken wrt. unicode?
32	$YAML::Syck::ImplicitUnicode = 1;	45	$YAML::Syck::ImplicitUnicode = 1;
33		46
34	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority	47	$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
35		48
		49	sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
		50
36	our %COMMAND = ();	51	our %COMMAND = ();
37	our %COMMAND_TIME = ();	52	our %COMMAND_TIME = ();
		53
		54	our @EXTS = (); # list of extension package names
38	our %EXTCMD = ();	55	our %EXTCMD = ();
		56	our %EXTICMD = ();
		57	our %EXT_CORO = (); # coroutines bound to extensions
		58	our %EXT_MAP = (); # pluggable maps
39		59
		60	our $RELOAD; # number of reloads so far
40	our @EVENT;	61	our @EVENT;
41	our $LIBDIR = datadir . "/ext";
42		62
43	our $TICK = MAX_TIME * 1e-6;	63	our $CONFDIR = confdir;
		64	our $DATADIR = datadir;
		65	our $LIBDIR = "$DATADIR/ext";
		66	our $PODDIR = "$DATADIR/pod";
		67	our $MAPDIR = "$DATADIR/" . mapdir;
		68	our $LOCALDIR = localdir;
		69	our $TMPDIR = "$LOCALDIR/" . tmpdir;
		70	our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
		71	our $PLAYERDIR = "$LOCALDIR/" . playerdir;
		72	our $RANDOMDIR = "$LOCALDIR/random";
		73	our $BDBDIR = "$LOCALDIR/db";
		74	our %RESOURCE;
		75
		76	our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
44	our $TICK_WATCHER;	77	our $TICK_WATCHER;
		78	our $AIO_POLL_WATCHER;
		79	our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
45	our $NEXT_TICK;	80	our $NEXT_TICK;
46	our $NOW;	81	our $USE_FSYNC = 1; # use fsync to write maps - default off
		82
		83	our $BDB_POLL_WATCHER;
		84	our $BDB_DEADLOCK_WATCHER;
		85	our $BDB_CHECKPOINT_WATCHER;
		86	our $BDB_TRICKLE_WATCHER;
		87	our $DB_ENV;
47		88
48	our %CFG;	89	our %CFG;
49		90
50	our $UPTIME; $UPTIME ||= time;	91	our $UPTIME; $UPTIME ||= time;
51	our $RUNTIME;	92	our $RUNTIME;
		93	our $NOW;
52		94
53	our %PLAYER; # all users	95	our (%PLAYER, %PLAYER_LOADING); # all users
54	our %MAP; # all maps	96	our (%MAP, %MAP_LOADING ); # all maps
55	our $LINK_MAP; # the special {link} map	97	our $LINK_MAP; # the special {link} map, which is always available
56	our $RANDOM_MAPS = cf::localdir . "/random";
57	our %EXT_CORO; # coroutines bound to extensions
58		98
59	our $WAIT_FOR_TICK; $WAIT_FOR_TICK ||= new Coro::Signal;	99	# used to convert map paths into valid unix filenames by replacing / by ∕
60	our $WAIT_FOR_TICK_ONE; $WAIT_FOR_TICK_ONE ||= new Coro::Signal;	100	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
		101
		102	our $LOAD; # a number between 0 (idle) and 1 (too many objects)
		103	our $LOADAVG; # same thing, but with alpha-smoothing
		104	our $tick_start; # for load detecting purposes
61		105
62	binmode STDOUT;	106	binmode STDOUT;
63	binmode STDERR;	107	binmode STDERR;
64		108
65	# read virtual server time, if available	109	# read virtual server time, if available
66	unless ($RUNTIME || !-e cf::localdir . "/runtime") {	110	unless ($RUNTIME || !-e "$LOCALDIR/runtime") {
67	open my $fh, "<", cf::localdir . "/runtime"	111	open my $fh, "<", "$LOCALDIR/runtime"
68	or die "unable to read runtime file: $!";	112	or die "unable to read runtime file: $!";
69	$RUNTIME = <$fh> + 0.;	113	$RUNTIME = <$fh> + 0.;
70	}	114	}
71		115
72	mkdir cf::localdir;	116	mkdir $_
73	mkdir cf::localdir . "/" . cf::playerdir;	117	for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
74	mkdir cf::localdir . "/" . cf::tmpdir;
75	mkdir cf::localdir . "/" . cf::uniquedir;
76	mkdir $RANDOM_MAPS;
77		118
78	# a special map that is always available
79	our $LINK_MAP;
80	our $EMERGENCY_POSITION;	119	our $EMERGENCY_POSITION;
		120
		121	sub cf::map::normalise;
81		122
82	#############################################################################	123	#############################################################################
83		124
84	=head2 GLOBAL VARIABLES	125	=head2 GLOBAL VARIABLES
85		126
…		…
92	=item $cf::RUNTIME	133	=item $cf::RUNTIME
93		134
94	The time this server has run, starts at 0 and is increased by $cf::TICK on	135	The time this server has run, starts at 0 and is increased by $cf::TICK on
95	every server tick.	136	every server tick.
96		137
97	=item $cf::LIBDIR	138	=item $cf::CONFDIR $cf::DATADIR $cf::LIBDIR $cf::PODDIR
		139	$cf::MAPDIR $cf::LOCALDIR $cf::TMPDIR $cf::UNIQUEDIR
		140	$cf::PLAYERDIR $cf::RANDOMDIR $cf::BDBDIR
98		141
99	The perl library directory, where extensions and cf-specific modules can	142	Various directories - "/etc", read-only install directory, perl-library
100	be found. It will be added to C<@INC> automatically.	143	directory, pod-directory, read-only maps directory, "/var", "/var/tmp",
		144	unique-items directory, player file directory, random maps directory and
		145	database environment.
101		146
102	=item $cf::NOW	147	=item $cf::NOW
103		148
104	The time of the last (current) server tick.	149	The time of the last (current) server tick.
105		150
106	=item $cf::TICK	151	=item $cf::TICK
107		152
108	The interval between server ticks, in seconds.	153	The interval between server ticks, in seconds.
109		154
		155	=item $cf::LOADAVG
		156
		157	The current CPU load on the server (alpha-smoothed), as a value between 0
		158	(none) and 1 (overloaded), indicating how much time is spent on processing
		159	objects per tick. Healthy values are < 0.5.
		160
		161	=item $cf::LOAD
		162
		163	The raw value load value from the last tick.
		164
110	=item %cf::CFG	165	=item %cf::CFG
111		166
112	Configuration for the server, loaded from C</etc/crossfire/config>, or	167	Configuration for the server, loaded from C</etc/deliantra-server/config>, or
113	from wherever your confdir points to.	168	from wherever your confdir points to.
114		169
115	=item $cf::WAIT_FOR_TICK, $cf::WAIT_FOR_TICK_ONE	170	=item cf::wait_for_tick, cf::wait_for_tick_begin
116		171
117	These are Coro::Signal objects that are C<< ->broadcast >> (WAIT_FOR_TICK)	172	These are functions that inhibit the current coroutine one tick. cf::wait_for_tick_begin only
118	or C<< ->send >> (WAIT_FOR_TICK_ONE) on after normal server tick	173	returns directly I<after> the tick processing (and consequently, can only wake one process
119	processing has been done. Call C<< ->wait >> on them to maximise the	174	per tick), while cf::wait_for_tick wakes up all waiters after tick processing.
120	window of cpu time available, or simply to synchronise to the server tick.	175
		176	=item @cf::INVOKE_RESULTS
		177
		178	This array contains the results of the last C<invoke ()> call. When
		179	C<cf::override> is called C<@cf::INVOKE_RESULTS> is set to the parameters of
		180	that call.
121		181
122	=back	182	=back
123		183
124	=cut	184	=cut
125		185
126	BEGIN {	186	BEGIN {
127	*CORE::GLOBAL::warn = sub {	187	*CORE::GLOBAL::warn = sub {
128	my $msg = join "", @_;	188	my $msg = join "", @_;
129	utf8::encode $msg;
130		189
131	$msg .= "\n"	190	$msg .= "\n"
132	unless $msg =~ /\n$/;	191	unless $msg =~ /\n$/;
133		192
		193	$msg =~ s/([\x00-\x08\x0b-\x1f])/sprintf "\\x%02x", ord $1/ge;
		194
134	LOG llevError, $msg;	195	LOG llevError, $msg;
135	};	196	};
136	}	197	}
		198
		199	$Coro::State::DIEHOOK = sub {
		200	warn Carp::longmess $_[0];
		201	Coro::terminate;
		202	};
137		203
138	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';	204	@safe::cf::global::ISA = @cf::global::ISA = 'cf::attachable';
139	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';	205	@safe::cf::object::ISA = @cf::object::ISA = 'cf::attachable';
140	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';	206	@safe::cf::player::ISA = @cf::player::ISA = 'cf::attachable';
141	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';	207	@safe::cf::client::ISA = @cf::client::ISA = 'cf::attachable';
142	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';	208	@safe::cf::map::ISA = @cf::map::ISA = 'cf::attachable';
		209	@safe::cf::arch::ISA = @cf::arch::ISA = 'cf::object';
143	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';	210	@safe::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object'; # not really true (yet)
144		211
145	# we bless all objects into (empty) derived classes to force a method lookup	212	# we bless all objects into (empty) derived classes to force a method lookup
146	# within the Safe compartment.	213	# within the Safe compartment.
147	for my $pkg (qw(	214	for my $pkg (qw(
148	cf::global cf::attachable	215	cf::global cf::attachable
…		…
153	)) {	220	)) {
154	no strict 'refs';	221	no strict 'refs';
155	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;	222	@{"safe::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
156	}	223	}
157		224
158	$Event::DIED = sub {	225	$EV::DIED = sub {
159	warn "error in event callback: @_";	226	warn "error in event callback: @_";
160	};	227	};
161		228
162	my %ext_pkg;	229	#############################################################################
163	my @exts;
164	my @hook;
165		230
166	=head2 UTILITY FUNCTIONS	231	=head2 UTILITY FUNCTIONS
167		232
168	=over 4	233	=over 4
169		234
…		…
188	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;	253	$d =~ s/([\x00-\x07\x09\x0b\x0c\x0e-\x1f])/sprintf "\\x%02x", ord($1)/ge;
189	$d	254	$d
190	} || "[unable to dump $_[0]: '$@']";	255	} || "[unable to dump $_[0]: '$@']";
191	}	256	}
192		257
193	use JSON::Syck (); # TODO# replace by JSON::PC once working
194
195	=item $ref = cf::from_json $json	258	=item $ref = cf::decode_json $json
196		259
197	Converts a JSON string into the corresponding perl data structure.	260	Converts a JSON string into the corresponding perl data structure.
198		261
199	=cut
200
201	sub from_json($) {
202	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
203	JSON::Syck::Load $_[0]
204	}
205
206	=item $json = cf::to_json $ref	262	=item $json = cf::encode_json $ref
207		263
208	Converts a perl data structure into its JSON representation.	264	Converts a perl data structure into its JSON representation.
209		265
210	=cut	266	=cut
211		267
212	sub to_json($) {	268	our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
213	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs	269
214	JSON::Syck::Dump $_[0]	270	sub encode_json($) { $json_coder->encode ($_[0]) }
215	}	271	sub decode_json($) { $json_coder->decode ($_[0]) }
216		272
217	=item cf::lock_wait $string	273	=item cf::lock_wait $string
218		274
219	Wait until the given lock is available. See cf::lock_acquire.	275	Wait until the given lock is available. See cf::lock_acquire.
220		276
…		…
223	Wait until the given lock is available and then acquires it and returns	279	Wait until the given lock is available and then acquires it and returns
224	a Coro::guard object. If the guard object gets destroyed (goes out of scope,	280	a Coro::guard object. If the guard object gets destroyed (goes out of scope,
225	for example when the coroutine gets canceled), the lock is automatically	281	for example when the coroutine gets canceled), the lock is automatically
226	returned.	282	returned.
227		283
		284	Locks are *not* recursive, locking from the same coro twice results in a
		285	deadlocked coro.
		286
228	Lock names should begin with a unique identifier (for example, cf::map::find	287	Lock names should begin with a unique identifier (for example, cf::map::find
229	uses map_find and cf::map::load uses map_load).	288	uses map_find and cf::map::load uses map_load).
230		289
		290	=item $locked = cf::lock_active $string
		291
		292	Return true if the lock is currently active, i.e. somebody has locked it.
		293
231	=cut	294	=cut
232		295
233	our %LOCK;	296	our %LOCK;
		297	our %LOCKER;#d#
234		298
235	sub lock_wait($) {	299	sub lock_wait($) {
236	my ($key) = @_;	300	my ($key) = @_;
		301
		302	if ($LOCKER{$key} == $Coro::current) {#d#
		303	Carp::cluck "lock_wait($key) for already-acquired lock";#d#
		304	return;#d#
		305	}#d#
237		306
238	# wait for lock, if any	307	# wait for lock, if any
239	while ($LOCK{$key}) {	308	while ($LOCK{$key}) {
240	push @{ $LOCK{$key} }, $Coro::current;	309	push @{ $LOCK{$key} }, $Coro::current;
241	Coro::schedule;	310	Coro::schedule;
…		…
247		316
248	# wait, to be sure we are not locked	317	# wait, to be sure we are not locked
249	lock_wait $key;	318	lock_wait $key;
250		319
251	$LOCK{$key} = [];	320	$LOCK{$key} = [];
		321	$LOCKER{$key} = $Coro::current;#d#
252		322
253	Coro::guard {	323	Coro::guard {
		324	delete $LOCKER{$key};#d#
254	# wake up all waiters, to be on the safe side	325	# wake up all waiters, to be on the safe side
255	$_->ready for @{ delete $LOCK{$key} };	326	$_->ready for @{ delete $LOCK{$key} };
256	}	327	}
257	}	328	}
258		329
		330	sub lock_active($) {
		331	my ($key) = @_;
		332
		333	! ! $LOCK{$key}
		334	}
		335
259	sub freeze_mainloop {	336	sub freeze_mainloop {
260	return unless $TICK_WATCHER->is_active;	337	return unless $TICK_WATCHER->is_active;
261		338
262	my $guard = Coro::guard { $TICK_WATCHER->start };	339	my $guard = Coro::guard {
		340	$TICK_WATCHER->start;
		341	};
263	$TICK_WATCHER->stop;	342	$TICK_WATCHER->stop;
264	$guard	343	$guard
		344	}
		345
		346	=item cf::periodic $interval, $cb
		347
		348	Like EV::periodic, but randomly selects a starting point so that the actions
		349	get spread over timer.
		350
		351	=cut
		352
		353	sub periodic($$) {
		354	my ($interval, $cb) = @_;
		355
		356	my $start = rand List::Util::min 180, $interval;
		357
		358	EV::periodic $start, $interval, 0, $cb
		359	}
		360
		361	=item cf::get_slot $time[, $priority[, $name]]
		362
		363	Allocate $time seconds of blocking CPU time at priority C<$priority>:
		364	This call blocks and returns only when you have at least C<$time> seconds
		365	of cpu time till the next tick. The slot is only valid till the next cede.
		366
		367	The optional C<$name> can be used to identify the job to run. It might be
		368	used for statistical purposes and should identify the same time-class.
		369
		370	Useful for short background jobs.
		371
		372	=cut
		373
		374	our @SLOT_QUEUE;
		375	our $SLOT_QUEUE;
		376
		377	$SLOT_QUEUE->cancel if $SLOT_QUEUE;
		378	$SLOT_QUEUE = Coro::async {
		379	$Coro::current->desc ("timeslot manager");
		380
		381	my $signal = new Coro::Signal;
		382
		383	while () {
		384	next_job:
		385	my $avail = cf::till_tick;
		386	if ($avail > 0.01) {
		387	for (0 .. $#SLOT_QUEUE) {
		388	if ($SLOT_QUEUE[$_][0] < $avail) {
		389	my $job = splice @SLOT_QUEUE, $_, 1, ();
		390	$job->[2]->send;
		391	Coro::cede;
		392	goto next_job;
		393	}
		394	}
		395	}
		396
		397	if (@SLOT_QUEUE) {
		398	# we do not use wait_for_tick() as it returns immediately when tick is inactive
		399	push @cf::WAIT_FOR_TICK, $signal;
		400	$signal->wait;
		401	} else {
		402	Coro::schedule;
		403	}
		404	}
		405	};
		406
		407	sub get_slot($;$$) {
		408	my ($time, $pri, $name) = @_;
		409
		410	$time = $TICK * .6 if $time > $TICK * .6;
		411	my $sig = new Coro::Signal;
		412
		413	push @SLOT_QUEUE, [$time, $pri, $sig, $name];
		414	@SLOT_QUEUE = sort { $b->[1] <=> $a->[1] } @SLOT_QUEUE;
		415	$SLOT_QUEUE->ready;
		416	$sig->wait;
265	}	417	}
266		418
267	=item cf::async { BLOCK }	419	=item cf::async { BLOCK }
268		420
269	Currently the same as Coro::async_pool, meaning you cannot use	421	Currently the same as Coro::async_pool, meaning you cannot use
…		…
274		426
275	BEGIN { *async = \&Coro::async_pool }	427	BEGIN { *async = \&Coro::async_pool }
276		428
277	=item cf::sync_job { BLOCK }	429	=item cf::sync_job { BLOCK }
278		430
279	The design of crossfire+ requires that the main coro ($Coro::main) is	431	The design of Deliantra requires that the main coroutine ($Coro::main)
280	always able to handle events or runnable, as crossfire+ is only partly	432	is always able to handle events or runnable, as Deliantra is only
281	reentrant. Thus "blocking" it by e.g. waiting for I/O is not acceptable.	433	partly reentrant. Thus "blocking" it by e.g. waiting for I/O is not
		434	acceptable.
282		435
283	If it must be done, put the blocking parts into C<sync_job>. This will run	436	If it must be done, put the blocking parts into C<sync_job>. This will run
284	the given BLOCK in another coroutine while waiting for the result. The	437	the given BLOCK in another coroutine while waiting for the result. The
285	server will be frozen during this time, so the block should either finish	438	server will be frozen during this time, so the block should either finish
286	fast or be very important.	439	fast or be very important.
…		…
289		442
290	sub sync_job(&) {	443	sub sync_job(&) {
291	my ($job) = @_;	444	my ($job) = @_;
292		445
293	if ($Coro::current == $Coro::main) {	446	if ($Coro::current == $Coro::main) {
		447	my $time = EV::time;
		448
294	# this is the main coro, too bad, we have to block	449	# this is the main coro, too bad, we have to block
295	# till the operation succeeds, freezing the server :/	450	# till the operation succeeds, freezing the server :/
296		451
		452	LOG llevError, Carp::longmess "sync job";#d#
		453
297	# TODO: use suspend/resume instead	454	# TODO: use suspend/resume instead
298	# (but this is cancel-safe)	455	# (but this is cancel-safe)
299	my $freeze_guard = freeze_mainloop;	456	my $freeze_guard = freeze_mainloop;
300		457
301	my $busy = 1;	458	my $busy = 1;
302	my @res;	459	my @res;
303		460
304	(async {	461	(async {
		462	$Coro::current->desc ("sync job coro");
305	@res = eval { $job->() };	463	@res = eval { $job->() };
306	warn $@ if $@;	464	warn $@ if $@;
307	undef $busy;	465	undef $busy;
308	})->prio (Coro::PRIO_MAX);	466	})->prio (Coro::PRIO_MAX);
309		467
310	while ($busy) {	468	while ($busy) {
311	Coro::cede or Event::one_event;	469	if (Coro::nready) {
		470	Coro::cede_notself;
		471	} else {
		472	EV::loop EV::LOOP_ONESHOT;
312	}	473	}
		474	}
		475
		476	$time = EV::time - $time;
		477
		478	LOG llevError | logBacktrace, Carp::longmess "long sync job"
		479	if $time > $TICK * 0.5 && $TICK_WATCHER->is_active;
		480
		481	$tick_start += $time; # do not account sync jobs to server load
313		482
314	wantarray ? @res : $res[0]	483	wantarray ? @res : $res[0]
315	} else {	484	} else {
316	# we are in another coroutine, how wonderful, everything just works	485	# we are in another coroutine, how wonderful, everything just works
317		486
…		…
319	}	488	}
320	}	489	}
321		490
322	=item $coro = cf::async_ext { BLOCK }	491	=item $coro = cf::async_ext { BLOCK }
323		492
324	Like async, but this coro is automcatially being canceled when the	493	Like async, but this coro is automatically being canceled when the
325	extension calling this is being unloaded.	494	extension calling this is being unloaded.
326		495
327	=cut	496	=cut
328		497
329	sub async_ext(&) {	498	sub async_ext(&) {
…		…
337	$EXT_CORO{$coro+0} = $coro;	506	$EXT_CORO{$coro+0} = $coro;
338		507
339	$coro	508	$coro
340	}	509	}
341		510
342	sub write_runtime {	511	=item fork_call { }, $args
343	my $runtime = cf::localdir . "/runtime";
344		512
345	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644	513	Executes the given code block with the given arguments in a seperate
346	or return;	514	process, returning the results. Everything must be serialisable with
		515	Coro::Storable. May, of course, block. Note that the executed sub may
		516	never block itself or use any form of event handling.
347		517
348	my $value = $cf::RUNTIME + 1 + 10; # 10 is the runtime save interval, for a monotonic clock	518	=cut
349	(aio_write $fh, 0, (length $value), $value, 0) <= 0
350	and return;
351		519
352	aio_fsync $fh	520	sub fork_call(&@) {
353	and return;	521	my ($cb, @args) = @_;
354		522
355	close $fh	523	# we seemingly have to make a local copy of the whole thing,
356	or return;	524	# otherwise perl prematurely frees the stuff :/
		525	# TODO: investigate and fix (likely this will be rather laborious)
357		526
358	aio_rename "$runtime~", $runtime	527	my @res = Coro::Util::fork_eval {
359	and return;	528	reset_signals;
		529	&$cb
		530	}, @args;
360		531
		532	wantarray ? @res : $res[-1]
		533	}
		534
		535	=item $value = cf::db_get $family => $key
		536
		537	Returns a single value from the environment database.
		538
		539	=item cf::db_put $family => $key => $value
		540
		541	Stores the given C<$value> in the family. It can currently store binary
		542	data only (use Compress::LZF::sfreeze_cr/sthaw to convert to/from binary).
		543
		544	=item $db = cf::db_table "name"
		545
		546	Create and/or open a new database table. The string must not be "db" and must be unique
		547	within each server.
		548
		549	=cut
		550
		551	sub db_table($) {
		552	my ($name) = @_;
		553	my $db = BDB::db_create $DB_ENV;
		554
		555	eval {
		556	$db->set_flags (BDB::CHKSUM);
		557
		558	utf8::encode $name;
		559	BDB::db_open $db, undef, $name, undef, BDB::BTREE,
		560	BDB::CREATE | BDB::AUTO_COMMIT, 0666;
		561	cf::cleanup "db_open(db): $!" if $!;
		562	};
		563	cf::cleanup "db_open(db): $@" if $@;
		564
		565	$db
		566	}
		567
		568	our $DB;
		569
		570	sub db_init {
		571	cf::sync_job {
		572	$DB ||= db_table "db";
		573	};
		574	}
		575
		576	sub db_get($$) {
		577	my $key = "$_[0]/$_[1]";
		578
		579	cf::sync_job {
		580	BDB::db_get $DB, undef, $key, my $data;
		581
		582	$! ? ()
		583	: $data
361	1	584	}
		585	}
		586
		587	sub db_put($$$) {
		588	BDB::dbreq_pri 4;
		589	BDB::db_put $DB, undef, "$_[0]/$_[1]", $_[2], 0, sub { };
		590	}
		591
		592	=item cf::cache $id => [$paths...], $processversion => $process
		593
		594	Generic caching function that returns the value of the resource $id,
		595	caching and regenerating as required.
		596
		597	This function can block.
		598
		599	=cut
		600
		601	sub cache {
		602	my ($id, $src, $processversion, $process) = @_;
		603
		604	my $meta =
		605	join "\x00",
		606	$processversion,
		607	map {
		608	aio_stat $_
		609	and Carp::croak "$_: $!";
		610
		611	($_, (stat _)[7,9])
		612	} @$src;
		613
		614	my $dbmeta = db_get cache => "$id/meta";
		615	if ($dbmeta ne $meta) {
		616	# changed, we may need to process
		617
		618	my @data;
		619	my $md5;
		620
		621	for (0 .. $#$src) {
		622	0 <= aio_load $src->[$_], $data[$_]
		623	or Carp::croak "$src->[$_]: $!";
		624	}
		625
		626	# if processing is expensive, check
		627	# checksum first
		628	if (1) {
		629	$md5 =
		630	join "\x00",
		631	$processversion,
		632	map {
		633	cf::cede_to_tick;
		634	($src->[$_], Digest::MD5::md5_hex $data[$_])
		635	} 0.. $#$src;
		636
		637
		638	my $dbmd5 = db_get cache => "$id/md5";
		639	if ($dbmd5 eq $md5) {
		640	db_put cache => "$id/meta", $meta;
		641
		642	return db_get cache => "$id/data";
		643	}
		644	}
		645
		646	my $t1 = Time::HiRes::time;
		647	my $data = $process->(\@data);
		648	my $t2 = Time::HiRes::time;
		649
		650	warn "cache: '$id' processed in ", $t2 - $t1, "s\n";
		651
		652	db_put cache => "$id/data", $data;
		653	db_put cache => "$id/md5" , $md5;
		654	db_put cache => "$id/meta", $meta;
		655
		656	return $data;
		657	}
		658
		659	db_get cache => "$id/data"
		660	}
		661
		662	=item cf::datalog type => key => value, ...
		663
		664	Log a datalog packet of the given type with the given key-value pairs.
		665
		666	=cut
		667
		668	sub datalog($@) {
		669	my ($type, %kv) = @_;
		670	warn "DATALOG ", JSON::XS->new->ascii->encode ({ %kv, type => $type });
362	}	671	}
363		672
364	=back	673	=back
365		674
366	=cut	675	=cut
367
368	#############################################################################
369
370	package cf::path;
371
372	# used to convert map paths into valid unix filenames by repalcing / by ∕
373	our $PATH_SEP = "∕"; # U+2215, chosen purely for visual reasons
374
375	sub new {
376	my ($class, $path, $base) = @_;
377
378	$path = $path->as_string if ref $path;
379
380	my $self = bless { }, $class;
381
382	# {... are special paths that are not touched
383	# ?xxx/... are special absolute paths
384	# ?random/... random maps
385	# /! non-realised random map exit
386	# /... normal maps
387	# ~/... per-player maps without a specific player (DO NOT USE)
388	# ~user/... per-player map of a specific user
389
390	if ($path =~ /^{/) {
391	# fine as it is
392	} elsif ($path =~ s{^\?random/}{}) {
393	Coro::AIO::aio_load "$cf::RANDOM_MAPS/$path.meta", my $data;
394	$self->{random} = cf::from_json $data;
395	} else {
396	if ($path =~ s{^~([^/]+)?}{}) {
397	$self->{user_rel} = 1;
398
399	if (defined $1) {
400	$self->{user} = $1;
401	} elsif ($base =~ m{^~([^/]+)/}) {
402	$self->{user} = $1;
403	} else {
404	warn "cannot resolve user-relative path without user <$path,$base>\n";
405	}
406	} elsif ($path =~ /^\//) {
407	# already absolute
408	} else {
409	$base =~ s{[^/]+/?$}{};
410	return $class->new ("$base/$path");
411	}
412
413	for ($path) {
414	redo if s{/\.?/}{/};
415	redo if s{/[^/]+/\.\./}{/};
416	}
417	}
418
419	$self->{path} = $path;
420
421	$self
422	}
423
424	# the name / primary key / in-game path
425	sub as_string {
426	my ($self) = @_;
427
428	$self->{user_rel} ? "~$self->{user}$self->{path}"
429	: $self->{random} ? "?random/$self->{path}"
430	: $self->{path}
431	}
432
433	# the displayed name, this is a one way mapping
434	sub visible_name {
435	my ($self) = @_;
436
437	# if (my $rmp = $self->{random}) {
438	# # todo: be more intelligent about this
439	# "?random/$rmp->{origin_map}+$rmp->{origin_x}+$rmp->{origin_y}/$rmp->{dungeon_level}"
440	# } else {
441	$self->as_string
442	# }
443	}
444
445	# escape the /'s in the path
446	sub _escaped_path {
447	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
448	$path
449	}
450
451	# the original (read-only) location
452	sub load_path {
453	my ($self) = @_;
454
455	sprintf "%s/%s/%s", cf::datadir, cf::mapdir, $self->{path}
456	}
457
458	# the temporary/swap location
459	sub save_path {
460	my ($self) = @_;
461
462	$self->{user_rel} ? sprintf "%s/%s/%s/%s", cf::localdir, cf::playerdir, $self->{user}, $self->_escaped_path
463	: $self->{random} ? sprintf "%s/%s", $RANDOM_MAPS, $self->{path}
464	: sprintf "%s/%s/%s", cf::localdir, cf::tmpdir, $self->_escaped_path
465	}
466
467	# the unique path, might be eq to save_path
468	sub uniq_path {
469	my ($self) = @_;
470
471	$self->{user_rel} || $self->{random}
472	? undef
473	: sprintf "%s/%s/%s", cf::localdir, cf::uniquedir, $self->_escaped_path
474	}
475
476	# return random map parameters, or undef
477	sub random_map_params {
478	my ($self) = @_;
479
480	$self->{random}
481	}
482
483	# this is somewhat ugly, but style maps do need special treatment
484	sub is_style_map {
485	$_[0]{path} =~ m{^/styles/}
486	}
487
488	package cf;
489		676
490	#############################################################################	677	#############################################################################
491		678
492	=head2 ATTACHABLE OBJECTS	679	=head2 ATTACHABLE OBJECTS
493		680
…		…
495	attach callbacks/event handlers (a collection of which is called an "attachment")	682	attach callbacks/event handlers (a collection of which is called an "attachment")
496	to it. All such attachable objects support the following methods.	683	to it. All such attachable objects support the following methods.
497		684
498	In the following description, CLASS can be any of C<global>, C<object>	685	In the following description, CLASS can be any of C<global>, C<object>
499	C<player>, C<client> or C<map> (i.e. the attachable objects in	686	C<player>, C<client> or C<map> (i.e. the attachable objects in
500	crossfire+).	687	Deliantra).
501		688
502	=over 4	689	=over 4
503		690
504	=item $attachable->attach ($attachment, key => $value...)	691	=item $attachable->attach ($attachment, key => $value...)
505		692
…		…
619	our @CB_TYPE = (); # registry for type (cf-object class) based events	806	our @CB_TYPE = (); # registry for type (cf-object class) based events
620	our @CB_MAP = ();	807	our @CB_MAP = ();
621		808
622	my %attachment;	809	my %attachment;
623		810
		811	sub cf::attachable::thawer_merge {
		812	# simply override everything except _meta
		813	local $_[0]{_meta};
		814	%{$_[0]} = %{$_[1]};
		815	}
		816
624	sub _attach_cb($$$$) {	817	sub _attach_cb($$$$) {
625	my ($registry, $event, $prio, $cb) = @_;	818	my ($registry, $event, $prio, $cb) = @_;
626		819
627	use sort 'stable';	820	use sort 'stable';
628		821
…		…
662	$registry = $CB_TYPE[$object_type] ||= [];	855	$registry = $CB_TYPE[$object_type] ||= [];
663		856
664	} elsif ($type eq "subtype") {	857	} elsif ($type eq "subtype") {
665	defined $object_type or Carp::croak "subtype specified without type";	858	defined $object_type or Carp::croak "subtype specified without type";
666	my $object_subtype = shift @arg;	859	my $object_subtype = shift @arg;
667	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_SUBTYPES] ||= [];	860	$registry = $CB_TYPE[$object_type + $object_subtype * NUM_TYPES] ||= [];
668		861
669	} elsif ($type eq "package") {	862	} elsif ($type eq "package") {
670	my $pkg = shift @arg;	863	my $pkg = shift @arg;
671		864
672	while (my ($name, $id) = each %cb_id) {	865	while (my ($name, $id) = each %cb_id) {
…		…
701	_attach $registry, $klass, @attach;	894	_attach $registry, $klass, @attach;
702	}	895	}
703		896
704	$obj->{$name} = \%arg;	897	$obj->{$name} = \%arg;
705	} else {	898	} else {
706	warn "object uses attachment '$name' that is not available, postponing.\n";	899	warn "object uses attachment '$name' which is not available, postponing.\n";
707	}	900	}
708		901
709	$obj->{_attachment}{$name} = undef;	902	$obj->{_attachment}{$name} = undef;
710	}	903	}
711		904
…		…
713	if (ref $_[0]) {	906	if (ref $_[0]) {
714	_object_attach @_;	907	_object_attach @_;
715	} else {	908	} else {
716	_attach shift->_attach_registry, @_;	909	_attach shift->_attach_registry, @_;
717	}	910	}
		911	_recalc_want;
718	};	912	};
719		913
720	# all those should be optimised	914	# all those should be optimised
721	sub cf::attachable::detach {	915	sub cf::attachable::detach {
722	my ($obj, $name) = @_;	916	my ($obj, $name) = @_;
…		…
725	delete $obj->{_attachment}{$name};	919	delete $obj->{_attachment}{$name};
726	reattach ($obj);	920	reattach ($obj);
727	} else {	921	} else {
728	Carp::croak "cannot, currently, detach class attachments";	922	Carp::croak "cannot, currently, detach class attachments";
729	}	923	}
		924	_recalc_want;
730	};	925	};
731		926
732	sub cf::attachable::attached {	927	sub cf::attachable::attached {
733	my ($obj, $name) = @_;	928	my ($obj, $name) = @_;
734		929
…		…
749	";	944	";
750	die if $@;	945	die if $@;
751	}	946	}
752		947
753	our $override;	948	our $override;
754	our @invoke_results = (); # referenced from .xs code. TODO: play tricks with reify and mortals?	949	our @INVOKE_RESULTS = (); # referenced from .xs code. TODO: play tricks with reify and mortals?
755		950
756	sub override {	951	sub override {
757	$override = 1;	952	$override = 1;
758	@invoke_results = ();	953	@INVOKE_RESULTS = (@_);
759	}	954	}
760		955
761	sub do_invoke {	956	sub do_invoke {
762	my $event = shift;	957	my $event = shift;
763	my $callbacks = shift;	958	my $callbacks = shift;
764		959
765	@invoke_results = ();	960	@INVOKE_RESULTS = ();
766		961
767	local $override;	962	local $override;
768		963
769	for (@$callbacks) {	964	for (@$callbacks) {
770	eval { &{$_->[1]} };	965	eval { &{$_->[1]} };
…		…
779	}	974	}
780		975
781	0	976	0
782	}	977	}
783		978
784	=item $bool = cf::global::invoke (EVENT_CLASS_XXX, ...)	979	=item $bool = cf::global->invoke (EVENT_CLASS_XXX, ...)
785		980
786	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)	981	=item $bool = $attachable->invoke (EVENT_CLASS_XXX, ...)
787		982
788	Generate an object-specific event with the given arguments.	983	Generate an object-specific event with the given arguments.
789		984
790	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be	985	This API is preliminary (most likely, the EVENT_CLASS_xxx prefix will be
791	removed in future versions), and there is no public API to access override	986	removed in future versions), and there is no public API to access override
792	results (if you must, access C<@cf::invoke_results> directly).	987	results (if you must, access C<@cf::INVOKE_RESULTS> directly).
793		988
794	=back	989	=back
795		990
796	=cut	991	=cut
797		992
798	#############################################################################	993	#############################################################################
799	# object support	994	# object support
		995
		996	sub _object_equal($$);
		997	sub _object_equal($$) {
		998	my ($a, $b) = @_;
		999
		1000	return 0 unless (ref $a) eq (ref $b);
		1001
		1002	if ("HASH" eq ref $a) {
		1003	my @ka = keys %$a;
		1004	my @kb = keys %$b;
		1005
		1006	return 0 if @ka != @kb;
		1007
		1008	for (0 .. $#ka) {
		1009	return 0 unless $ka[$_] eq $kb[$_];
		1010	return 0 unless _object_equal $a->{$ka[$_]}, $b->{$kb[$_]};
		1011	}
		1012
		1013	} elsif ("ARRAY" eq ref $a) {
		1014
		1015	return 0 if @$a != @$b;
		1016
		1017	for (0 .. $#$a) {
		1018	return 0 unless _object_equal $a->[$_], $b->[$_];
		1019	}
		1020
		1021	} elsif ($a ne $b) {
		1022	return 0;
		1023	}
		1024
		1025	1
		1026	}
		1027
		1028	our $SLOW_MERGES;#d#
		1029	sub _can_merge {
		1030	my ($ob1, $ob2) = @_;
		1031
		1032	++$SLOW_MERGES;#d#
		1033
		1034	# we do the slow way here
		1035	return _object_equal $ob1, $ob2
		1036	}
800		1037
801	sub reattach {	1038	sub reattach {
802	# basically do the same as instantiate, without calling instantiate	1039	# basically do the same as instantiate, without calling instantiate
803	my ($obj) = @_;	1040	my ($obj) = @_;
		1041
		1042	bless $obj, ref $obj; # re-bless in case extensions have been reloaded
804		1043
805	my $registry = $obj->registry;	1044	my $registry = $obj->registry;
806		1045
807	@$registry = ();	1046	@$registry = ();
808		1047
…		…
823	cf::attachable->attach (	1062	cf::attachable->attach (
824	prio => -1000000,	1063	prio => -1000000,
825	on_instantiate => sub {	1064	on_instantiate => sub {
826	my ($obj, $data) = @_;	1065	my ($obj, $data) = @_;
827		1066
828	$data = from_json $data;	1067	$data = decode_json $data;
829		1068
830	for (@$data) {	1069	for (@$data) {
831	my ($name, $args) = @$_;	1070	my ($name, $args) = @$_;
832		1071
833	$obj->attach ($name, %{$args || {} });	1072	$obj->attach ($name, %{$args || {} });
…		…
849	sub object_freezer_save {	1088	sub object_freezer_save {
850	my ($filename, $rdata, $objs) = @_;	1089	my ($filename, $rdata, $objs) = @_;
851		1090
852	sync_job {	1091	sync_job {
853	if (length $$rdata) {	1092	if (length $$rdata) {
		1093	utf8::decode (my $decname = $filename);
854	warn sprintf "saving %s (%d,%d)\n",	1094	warn sprintf "saving %s (%d,%d)\n",
855	$filename, length $$rdata, scalar @$objs;	1095	$decname, length $$rdata, scalar @$objs;
856		1096
857	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {	1097	if (my $fh = aio_open "$filename~", O_WRONLY | O_CREAT, 0600) {
858	chmod SAVE_MODE, $fh;	1098	chmod SAVE_MODE, $fh;
859	aio_write $fh, 0, (length $$rdata), $$rdata, 0;	1099	aio_write $fh, 0, (length $$rdata), $$rdata, 0;
860	aio_fsync $fh;	1100	aio_fsync $fh if $cf::USE_FSYNC;
861	close $fh;	1101	close $fh;
862		1102
863	if (@$objs) {	1103	if (@$objs) {
864	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {	1104	if (my $fh = aio_open "$filename.pst~", O_WRONLY | O_CREAT, 0600) {
865	chmod SAVE_MODE, $fh;	1105	chmod SAVE_MODE, $fh;
866	my $data = Storable::nfreeze { version => 1, objs => $objs };	1106	my $data = Coro::Storable::nfreeze { version => 1, objs => $objs };
867	aio_write $fh, 0, (length $data), $data, 0;	1107	aio_write $fh, 0, (length $data), $data, 0;
868	aio_fsync $fh;	1108	aio_fsync $fh if $cf::USE_FSYNC;
869	close $fh;	1109	close $fh;
870	aio_rename "$filename.pst~", "$filename.pst";	1110	aio_rename "$filename.pst~", "$filename.pst";
871	}	1111	}
872	} else {	1112	} else {
873	aio_unlink "$filename.pst";	1113	aio_unlink "$filename.pst";
…		…
879	}	1119	}
880	} else {	1120	} else {
881	aio_unlink $filename;	1121	aio_unlink $filename;
882	aio_unlink "$filename.pst";	1122	aio_unlink "$filename.pst";
883	}	1123	}
884	}	1124	};
885	}	1125	}
886		1126
887	sub object_freezer_as_string {	1127	sub object_freezer_as_string {
888	my ($rdata, $objs) = @_;	1128	my ($rdata, $objs) = @_;
889		1129
…		…
901	or return;	1141	or return;
902		1142
903	unless (aio_stat "$filename.pst") {	1143	unless (aio_stat "$filename.pst") {
904	(aio_load "$filename.pst", $av) >= 0	1144	(aio_load "$filename.pst", $av) >= 0
905	or return;	1145	or return;
		1146
906	$av = eval { (Storable::thaw $av)->{objs} };	1147	my $st = eval { Coro::Storable::thaw $av };
		1148	$av = $st->{objs};
907	}	1149	}
908		1150
		1151	utf8::decode (my $decname = $filename);
909	warn sprintf "loading %s (%d)\n",	1152	warn sprintf "loading %s (%d,%d)\n",
910	$filename, length $data, scalar @{$av || []};#d#	1153	$decname, length $data, scalar @{$av || []};
		1154
911	return ($data, $av);	1155	($data, $av)
912	}	1156	}
		1157
		1158	=head2 COMMAND CALLBACKS
		1159
		1160	=over 4
		1161
		1162	=cut
913		1163
914	#############################################################################	1164	#############################################################################
915	# command handling &c	1165	# command handling &c
916		1166
917	=item cf::register_command $name => \&callback($ob,$args);	1167	=item cf::register_command $name => \&callback($ob,$args);
…		…
930	push @{ $COMMAND{$name} }, [$caller, $cb];	1180	push @{ $COMMAND{$name} }, [$caller, $cb];
931	}	1181	}
932		1182
933	=item cf::register_extcmd $name => \&callback($pl,$packet);	1183	=item cf::register_extcmd $name => \&callback($pl,$packet);
934		1184
935	Register a callbackf ro execution when the client sends an extcmd packet.	1185	Register a callback for execution when the client sends an (synchronous)
		1186	extcmd packet. Ext commands will be processed in the order they are
		1187	received by the server, like other user commands. The first argument is
		1188	the logged-in player. Ext commands can only be processed after a player
		1189	has logged in successfully.
936		1190
937	If the callback returns something, it is sent back as if reply was being	1191	If the callback returns something, it is sent back as if reply was being
938	called.	1192	called.
939		1193
		1194	=item cf::register_exticmd $name => \&callback($ns,$packet);
		1195
		1196	Register a callback for execution when the client sends an (asynchronous)
		1197	exticmd packet. Exti commands are processed by the server as soon as they
		1198	are received, i.e. out of order w.r.t. other commands. The first argument
		1199	is a client socket. Exti commands can be received anytime, even before
		1200	log-in.
		1201
		1202	If the callback returns something, it is sent back as if reply was being
		1203	called.
		1204
940	=cut	1205	=cut
941		1206
942	sub register_extcmd {	1207	sub register_extcmd {
943	my ($name, $cb) = @_;	1208	my ($name, $cb) = @_;
944		1209
945	my $caller = caller;
946	#warn "registering extcmd '$name' to '$caller'";
947
948	$EXTCMD{$name} = [$cb, $caller];	1210	$EXTCMD{$name} = $cb;
		1211	}
		1212
		1213	sub register_exticmd {
		1214	my ($name, $cb) = @_;
		1215
		1216	$EXTICMD{$name} = $cb;
949	}	1217	}
950		1218
951	cf::player->attach (	1219	cf::player->attach (
952	on_command => sub {	1220	on_command => sub {
953	my ($pl, $name, $params) = @_;	1221	my ($pl, $name, $params) = @_;
…		…
962	cf::override;	1230	cf::override;
963	},	1231	},
964	on_extcmd => sub {	1232	on_extcmd => sub {
965	my ($pl, $buf) = @_;	1233	my ($pl, $buf) = @_;
966		1234
967	my $msg = eval { from_json $buf };	1235	my $msg = eval { $pl->ns->{json_coder}->decode ($buf) };
968		1236
969	if (ref $msg) {	1237	if (ref $msg) {
		1238	my ($type, $reply, @payload) =
		1239	"ARRAY" eq ref $msg
		1240	? @$msg
		1241	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		1242
		1243	my @reply;
		1244
970	if (my $cb = $EXTCMD{$msg->{msgtype}}) {	1245	if (my $cb = $EXTCMD{$type}) {
971	if (my %reply = $cb->[0]->($pl, $msg)) {	1246	@reply = $cb->($pl, @payload);
972	$pl->ext_reply ($msg->{msgid}, %reply);
973	}
974	}	1247	}
		1248
		1249	$pl->ext_reply ($reply, @reply)
		1250	if $reply;
		1251
975	} else {	1252	} else {
976	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";	1253	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
977	}	1254	}
978		1255
979	cf::override;	1256	cf::override;
980	},	1257	},
981	);	1258	);
982		1259
983	sub register {
984	my ($base, $pkg) = @_;
985
986	#TODO
987	}
988
989	sub load_extension {
990	my ($path) = @_;
991
992	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
993	my $base = $1;
994	my $pkg = $1;
995	$pkg =~ s/[^[:word:]]/_/g;
996	$pkg = "ext::$pkg";
997
998	warn "loading '$path' into '$pkg'\n";
999
1000	open my $fh, "<:utf8", $path
1001	or die "$path: $!";
1002
1003	my $source =
1004	"package $pkg; use strict; use utf8;\n"
1005	. "#line 1 \"$path\"\n{\n"
1006	. (do { local $/; <$fh> })
1007	. "\n};\n1";
1008
1009	eval $source
1010	or die $@ ? "$path: $@\n"
1011	: "extension disabled.\n";
1012
1013	push @exts, $pkg;
1014	$ext_pkg{$base} = $pkg;
1015
1016	# no strict 'refs';
1017	# @{"$pkg\::ISA"} = ext::;
1018
1019	register $base, $pkg;
1020	}
1021
1022	sub unload_extension {
1023	my ($pkg) = @_;
1024
1025	warn "removing extension $pkg\n";
1026
1027	# remove hooks
1028	#TODO
1029	# for my $idx (0 .. $#PLUGIN_EVENT) {
1030	# delete $hook[$idx]{$pkg};
1031	# }
1032
1033	# remove commands
1034	for my $name (keys %COMMAND) {
1035	my @cb = grep $_->[0] ne $pkg, @{ $COMMAND{$name} };
1036
1037	if (@cb) {
1038	$COMMAND{$name} = \@cb;
1039	} else {
1040	delete $COMMAND{$name};
1041	}
1042	}
1043
1044	# remove extcmds
1045	for my $name (grep $EXTCMD{$_}[1] eq $pkg, keys %EXTCMD) {
1046	delete $EXTCMD{$name};
1047	}
1048
1049	if (my $cb = $pkg->can ("unload")) {
1050	eval {
1051	$cb->($pkg);
1052	1
1053	} or warn "$pkg unloaded, but with errors: $@";
1054	}
1055
1056	Symbol::delete_package $pkg;
1057	}
1058
1059	sub load_extensions {	1260	sub load_extensions {
		1261	cf::sync_job {
		1262	my %todo;
		1263
1060	for my $ext (<$LIBDIR/*.ext>) {	1264	for my $path (<$LIBDIR/*.ext>) {
1061	next unless -r $ext;	1265	next unless -r $path;
1062	eval {	1266
1063	load_extension $ext;	1267	$path =~ /([^\/\\]+)\.ext$/ or die "$path";
		1268	my $base = $1;
		1269	my $pkg = $1;
		1270	$pkg =~ s/[^[:word:]]/_/g;
		1271	$pkg = "ext::$pkg";
		1272
		1273	open my $fh, "<:utf8", $path
		1274	or die "$path: $!";
		1275
		1276	my $source = do { local $/; <$fh> };
		1277
		1278	my %ext = (
		1279	path => $path,
		1280	base => $base,
		1281	pkg => $pkg,
		1282	);
		1283
		1284	$ext{meta} = { map { (split /=/, $_, 2)[0, 1] } split /\s+/, $1 }
		1285	if $source =~ /\A#!.*?perl.*?#\s*(.*)$/m;
		1286
		1287	$ext{source} =
		1288	"package $pkg; use strict; use utf8;\n"
		1289	. "#line 1 \"$path\"\n{\n"
		1290	. $source
		1291	. "\n};\n1";
		1292
		1293	$todo{$base} = \%ext;
		1294	}
		1295
		1296	my %done;
		1297	while (%todo) {
		1298	my $progress;
		1299
		1300	while (my ($k, $v) = each %todo) {
		1301	for (split /,\s*/, $v->{meta}{depends}) {
		1302	goto skip
		1303	unless exists $done{$_};
		1304	}
		1305
		1306	warn "... loading '$k' into '$v->{pkg}'\n";
		1307
		1308	unless (eval $v->{source}) {
		1309	my $msg = $@ ? "$v->{path}: $@\n"
		1310	: "$v->{base}: extension inactive.\n";
		1311
		1312	if (exists $v->{meta}{mandatory}) {
		1313	warn $msg;
		1314	warn "mandatory extension failed to load, exiting.\n";
		1315	exit 1;
		1316	}
		1317
		1318	warn $msg;
		1319	}
		1320
		1321	$done{$k} = delete $todo{$k};
		1322	push @EXTS, $v->{pkg};
		1323	$progress = 1;
1064	1	1324	}
1065	} or warn "$ext not loaded: $@";	1325
		1326	skip:
		1327	die "cannot load " . (join ", ", keys %todo) . ": unable to resolve dependencies\n"
		1328	unless $progress;
		1329	}
1066	}	1330	};
1067	}	1331	}
1068		1332
1069	#############################################################################	1333	#############################################################################
1070	# load/save/clean perl data associated with a map
1071		1334
1072	*cf::mapsupport::on_clean = sub {	1335	=back
1073	my ($map) = @_;
1074
1075	my $path = $map->tmpname;
1076	defined $path or return;
1077
1078	unlink "$path.pst";
1079	};
1080
1081	cf::map->attach (prio => -10000, package => cf::mapsupport::);
1082
1083	#############################################################################
1084		1336
1085	=head2 CORE EXTENSIONS	1337	=head2 CORE EXTENSIONS
1086		1338
1087	Functions and methods that extend core crossfire objects.	1339	Functions and methods that extend core crossfire objects.
1088		1340
…		…
1094		1346
1095	=head3 cf::player	1347	=head3 cf::player
1096		1348
1097	=over 4	1349	=over 4
1098		1350
		1351	=item cf::player::num_playing
		1352
		1353	Returns the official number of playing players, as per the Crossfire metaserver rules.
		1354
		1355	=cut
		1356
		1357	sub num_playing {
		1358	scalar grep
		1359	$_->ob->map
		1360	&& !$_->hidden
		1361	&& !$_->ob->flag (cf::FLAG_WIZ),
		1362	cf::player::list
		1363	}
		1364
1099	=item cf::player::find $login	1365	=item cf::player::find $login
1100		1366
1101	Returns the given player object, loading it if necessary (might block).	1367	Returns the given player object, loading it if necessary (might block).
1102		1368
1103	=cut	1369	=cut
1104		1370
1105	sub playerdir($) {	1371	sub playerdir($) {
1106	cf::localdir	1372	"$PLAYERDIR/"
1107	. "/"
1108	. cf::playerdir
1109	. "/"
1110	. (ref $_[0] ? $_[0]->ob->name : $_[0])	1373	. (ref $_[0] ? $_[0]->ob->name : $_[0])
1111	}	1374	}
1112		1375
1113	sub path($) {	1376	sub path($) {
1114	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];	1377	my $login = ref $_[0] ? $_[0]->ob->name : $_[0];
1115		1378
1116	(playerdir $login) . "/$login.pl"	1379	(playerdir $login) . "/playerdata"
1117	}	1380	}
1118		1381
1119	sub find_active($) {	1382	sub find_active($) {
1120	$cf::PLAYER{$_[0]}	1383	$cf::PLAYER{$_[0]}
1121	and $cf::PLAYER{$_[0]}->active	1384	and $cf::PLAYER{$_[0]}->active
…		…
1124		1387
1125	sub exists($) {	1388	sub exists($) {
1126	my ($login) = @_;	1389	my ($login) = @_;
1127		1390
1128	$cf::PLAYER{$login}	1391	$cf::PLAYER{$login}
1129	or cf::sync_job { !aio_stat $login }	1392	or cf::sync_job { !aio_stat path $login }
1130	}	1393	}
1131		1394
1132	sub find($) {	1395	sub find($) {
1133	return $cf::PLAYER{$_[0]} || do {	1396	return $cf::PLAYER{$_[0]} || do {
1134	my $login = $_[0];	1397	my $login = $_[0];
1135		1398
1136	my $guard = cf::lock_acquire "user_find:$login";	1399	my $guard = cf::lock_acquire "user_find:$login";
1137		1400
1138	$cf::PLAYER{$_[0]} || do {	1401	$cf::PLAYER{$_[0]} || do {
1139	my $pl = load_pl path $login	1402	# rename old playerfiles to new ones
		1403	#TODO: remove when no longer required
		1404	aio_link +(playerdir $login) . "/$login.pl.pst", (playerdir $login) . "/playerdata.pst";
		1405	aio_link +(playerdir $login) . "/$login.pl" , (playerdir $login) . "/playerdata";
		1406	aio_unlink +(playerdir $login) . "/$login.pl.pst";
		1407	aio_unlink +(playerdir $login) . "/$login.pl";
		1408
		1409	my $f = new_from_file cf::object::thawer path $login
1140	or return;	1410	or return;
		1411
		1412	my $pl = cf::player::load_pl $f
		1413	or return;
		1414	local $cf::PLAYER_LOADING{$login} = $pl;
		1415	$f->resolve_delayed_derefs;
1141	$cf::PLAYER{$login} = $pl	1416	$cf::PLAYER{$login} = $pl
1142	}	1417	}
1143	}	1418	}
1144	}	1419	}
1145		1420
…		…
1155		1430
1156	aio_mkdir playerdir $pl, 0770;	1431	aio_mkdir playerdir $pl, 0770;
1157	$pl->{last_save} = $cf::RUNTIME;	1432	$pl->{last_save} = $cf::RUNTIME;
1158		1433
1159	$pl->save_pl ($path);	1434	$pl->save_pl ($path);
1160	Coro::cede;	1435	cf::cede_to_tick;
1161	}	1436	}
1162		1437
1163	sub new($) {	1438	sub new($) {
1164	my ($login) = @_;	1439	my ($login) = @_;
1165		1440
…		…
1171	$cf::PLAYER{$login} = $self;	1446	$cf::PLAYER{$login} = $self;
1172		1447
1173	$self	1448	$self
1174	}	1449	}
1175		1450
		1451	=item $player->send_msg ($channel, $msg, $color, [extra...])
		1452
		1453	=cut
		1454
		1455	sub send_msg {
		1456	my $ns = shift->ns
		1457	or return;
		1458	$ns->send_msg (@_);
		1459	}
		1460
1176	=item $pl->quit_character	1461	=item $pl->quit_character
1177		1462
1178	Nukes the player without looking back. If logged in, the connection will	1463	Nukes the player without looking back. If logged in, the connection will
1179	be destroyed. May block for a long time.	1464	be destroyed. May block for a long time.
1180		1465
1181	=cut	1466	=cut
1182		1467
1183	sub quit_character {	1468	sub quit_character {
1184	my ($pl) = @_;	1469	my ($pl) = @_;
		1470
		1471	my $name = $pl->ob->name;
1185		1472
1186	$pl->{deny_save} = 1;	1473	$pl->{deny_save} = 1;
1187	$pl->password ("*"); # this should lock out the player until we nuked the dir	1474	$pl->password ("*"); # this should lock out the player until we nuked the dir
1188		1475
1189	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;	1476	$pl->invoke (cf::EVENT_PLAYER_LOGOUT, 1) if $pl->active;
…		…
1194	my $path = playerdir $pl;	1481	my $path = playerdir $pl;
1195	my $temp = "$path~$cf::RUNTIME~deleting~";	1482	my $temp = "$path~$cf::RUNTIME~deleting~";
1196	aio_rename $path, $temp;	1483	aio_rename $path, $temp;
1197	delete $cf::PLAYER{$pl->ob->name};	1484	delete $cf::PLAYER{$pl->ob->name};
1198	$pl->destroy;	1485	$pl->destroy;
		1486
		1487	my $prefix = qr<^~\Q$name\E/>;
		1488
		1489	# nuke player maps
		1490	$cf::MAP{$_}->nuke for grep /$prefix/, keys %cf::MAP;
		1491
1199	IO::AIO::aio_rmtree $temp;	1492	IO::AIO::aio_rmtree $temp;
		1493	}
		1494
		1495	=item $pl->kick
		1496
		1497	Kicks a player out of the game. This destroys the connection.
		1498
		1499	=cut
		1500
		1501	sub kick {
		1502	my ($pl, $kicker) = @_;
		1503
		1504	$pl->invoke (cf::EVENT_PLAYER_KICK, $kicker);
		1505	$pl->killer ("kicked");
		1506	$pl->ns->destroy;
1200	}	1507	}
1201		1508
1202	=item cf::player::list_logins	1509	=item cf::player::list_logins
1203		1510
1204	Returns am arrayref of all valid playernames in the system, can take a	1511	Returns am arrayref of all valid playernames in the system, can take a
1205	while and may block, so not sync_job-capable, ever.	1512	while and may block, so not sync_job-capable, ever.
1206		1513
1207	=cut	1514	=cut
1208		1515
1209	sub list_logins {	1516	sub list_logins {
1210	my $dirs = aio_readdir cf::localdir . "/" . cf::playerdir	1517	my $dirs = aio_readdir $PLAYERDIR
1211	or return [];	1518	or return [];
1212		1519
1213	my @logins;	1520	my @logins;
1214		1521
1215	for my $login (@$dirs) {	1522	for my $login (@$dirs) {
		1523	my $path = path $login;
		1524
		1525	# a .pst is a dead give-away for a valid player
		1526	unless (-e "$path.pst") {
1216	my $fh = aio_open path $login, Fcntl::O_RDONLY, 0 or next;	1527	my $fh = aio_open $path, Fcntl::O_RDONLY, 0 or next;
1217	aio_read $fh, 0, 512, my $buf, 0 or next;	1528	aio_read $fh, 0, 512, my $buf, 0 or next;
1218	$buf !~ /^password -------------$/m or next; # official not-valid tag	1529	$buf !~ /^password -------------$/m or next; # official not-valid tag
		1530	}
1219		1531
1220	utf8::decode $login;	1532	utf8::decode $login;
1221	push @logins, $login;	1533	push @logins, $login;
1222	}	1534	}
1223		1535
1224	\@logins	1536	\@logins
1225	}	1537	}
1226		1538
1227	=item $player->maps	1539	=item $player->maps
1228		1540
1229	Returns an arrayref of cf::path's of all maps that are private for this	1541	Returns an arrayref of map paths that are private for this
1230	player. May block.	1542	player. May block.
1231		1543
1232	=cut	1544	=cut
1233		1545
1234	sub maps($) {	1546	sub maps($) {
1235	my ($pl) = @_;	1547	my ($pl) = @_;
		1548
		1549	$pl = ref $pl ? $pl->ob->name : $pl;
1236		1550
1237	my $files = aio_readdir playerdir $pl	1551	my $files = aio_readdir playerdir $pl
1238	or return;	1552	or return;
1239		1553
1240	my @paths;	1554	my @paths;
1241		1555
1242	for (@$files) {	1556	for (@$files) {
1243	utf8::decode $_;	1557	utf8::decode $_;
1244	next if /\.(?:pl|pst)$/;	1558	next if /\.(?:pl|pst)$/;
1245	next unless /^$PATH_SEP/;	1559	next unless /^$PATH_SEP/o;
1246		1560
1247	s/$PATH_SEP/\//g;	1561	push @paths, cf::map::normalise "~$pl/$_";
1248	push @paths, new cf::path "~" . $pl->ob->name . "/" . $_;
1249	}	1562	}
1250		1563
1251	\@paths	1564	\@paths
1252	}	1565	}
1253		1566
		1567	=item $protocol_xml = $player->expand_cfpod ($crossfire_pod)
		1568
		1569	Expand crossfire pod fragments into protocol xml.
		1570
		1571	=cut
		1572
		1573	use re 'eval';
		1574
		1575	my $group;
		1576	my $interior; $interior = qr{
		1577	# match a pod interior sequence sans C<< >>
		1578	(?:
		1579	\ (.*?)\ (?{ $group = $^N })
		1580	| < (??{$interior}) >
		1581	)
		1582	}x;
		1583
		1584	sub expand_cfpod {
		1585	my ($self, $pod) = @_;
		1586
		1587	my $xml;
		1588
		1589	while () {
		1590	if ($pod =~ /\G( (?: [^BCGHITU]+ | .(?!<) )+ )/xgcs) {
		1591	$group = $1;
		1592
		1593	$group =~ s/&/&amp;/g;
		1594	$group =~ s/</&lt;/g;
		1595
		1596	$xml .= $group;
		1597	} elsif ($pod =~ m%\G
		1598	([BCGHITU])
		1599	<
		1600	(?:
		1601	([^<>]*) (?{ $group = $^N })
		1602	| < $interior >
		1603	)
		1604	>
		1605	%gcsx
		1606	) {
		1607	my ($code, $data) = ($1, $group);
		1608
		1609	if ($code eq "B") {
		1610	$xml .= "<b>" . expand_cfpod ($self, $data) . "</b>";
		1611	} elsif ($code eq "I") {
		1612	$xml .= "<i>" . expand_cfpod ($self, $data) . "</i>";
		1613	} elsif ($code eq "U") {
		1614	$xml .= "<u>" . expand_cfpod ($self, $data) . "</u>";
		1615	} elsif ($code eq "C") {
		1616	$xml .= "<tt>" . expand_cfpod ($self, $data) . "</tt>";
		1617	} elsif ($code eq "T") {
		1618	$xml .= "<big><b>" . expand_cfpod ($self, $data) . "</b></big>";
		1619	} elsif ($code eq "G") {
		1620	my ($male, $female) = split /\|/, $data;
		1621	$data = $self->gender ? $female : $male;
		1622	$xml .= expand_cfpod ($self, $data);
		1623	} elsif ($code eq "H") {
		1624	$xml .= ("<fg name=\"lightblue\">[" . expand_cfpod ($self, $data) . " (Use hintmode to suppress hints)]</fg>",
		1625	"<fg name=\"lightblue\">[Hint suppressed, see hintmode]</fg>",
		1626	"")
		1627	[$self->{hintmode}];
		1628	} else {
		1629	$xml .= "error processing '$code($data)' directive";
		1630	}
		1631	} else {
		1632	if ($pod =~ /\G(.+)/) {
		1633	warn "parse error while expanding $pod (at $1)";
		1634	}
		1635	last;
		1636	}
		1637	}
		1638
		1639	for ($xml) {
		1640	# create single paragraphs (very hackish)
		1641	s/(?<=\S)\n(?=\w)/ /g;
		1642
		1643	# compress some whitespace
		1644	s/\s+\n/\n/g; # ws line-ends
		1645	s/\n\n+/\n/g; # double lines
		1646	s/^\n+//; # beginning lines
		1647	s/\n+$//; # ending lines
		1648	}
		1649
		1650	$xml
		1651	}
		1652
		1653	no re 'eval';
		1654
		1655	sub hintmode {
		1656	$_[0]{hintmode} = $_[1] if @_ > 1;
		1657	$_[0]{hintmode}
		1658	}
		1659
1254	=item $player->ext_reply ($msgid, $msgtype, %msg)	1660	=item $player->ext_reply ($msgid, @msg)
1255		1661
1256	Sends an ext reply to the player.	1662	Sends an ext reply to the player.
1257		1663
1258	=cut	1664	=cut
1259		1665
1260	sub ext_reply($$$%) {	1666	sub ext_reply($$@) {
1261	my ($self, $id, %msg) = @_;	1667	my ($self, $id, @msg) = @_;
1262		1668
1263	$msg{msgid} = $id;	1669	$self->ns->ext_reply ($id, @msg)
1264
1265	$self->send ("ext " . cf::to_json \%msg);
1266	}	1670	}
1267		1671
1268	package cf;	1672	=item $player->ext_msg ($type, @msg)
		1673
		1674	Sends an ext event to the client.
		1675
		1676	=cut
		1677
		1678	sub ext_msg($$@) {
		1679	my ($self, $type, @msg) = @_;
		1680
		1681	$self->ns->ext_msg ($type, @msg);
		1682	}
		1683
		1684	=head3 cf::region
		1685
		1686	=over 4
		1687
		1688	=cut
		1689
		1690	package cf::region;
		1691
		1692	=item cf::region::find_by_path $path
		1693
		1694	Tries to decuce the likely region for a map knowing only its path.
		1695
		1696	=cut
		1697
		1698	sub find_by_path($) {
		1699	my ($path) = @_;
		1700
		1701	my ($match, $specificity);
		1702
		1703	for my $region (list) {
		1704	if ($region->{match} && $path =~ $region->{match}) {
		1705	($match, $specificity) = ($region, $region->specificity)
		1706	if $region->specificity > $specificity;
		1707	}
		1708	}
		1709
		1710	$match
		1711	}
1269		1712
1270	=back	1713	=back
1271
1272		1714
1273	=head3 cf::map	1715	=head3 cf::map
1274		1716
1275	=over 4	1717	=over 4
1276		1718
…		…
1279	package cf::map;	1721	package cf::map;
1280		1722
1281	use Fcntl;	1723	use Fcntl;
1282	use Coro::AIO;	1724	use Coro::AIO;
1283		1725
		1726	use overload
		1727	'""' => \&as_string,
		1728	fallback => 1;
		1729
1284	our $MAX_RESET = 3600;	1730	our $MAX_RESET = 3600;
1285	our $DEFAULT_RESET = 3000;	1731	our $DEFAULT_RESET = 3000;
1286		1732
1287	sub generate_random_map {	1733	sub generate_random_map {
1288	my ($path, $rmp) = @_;	1734	my ($self, $rmp) = @_;
1289
1290	# mit "rum" bekleckern, nicht	1735	# mit "rum" bekleckern, nicht
1291	cf::map::_create_random_map	1736	$self->_create_random_map (
1292	$path,
1293	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},	1737	$rmp->{wallstyle}, $rmp->{wall_name}, $rmp->{floorstyle}, $rmp->{monsterstyle},
1294	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},	1738	$rmp->{treasurestyle}, $rmp->{layoutstyle}, $rmp->{doorstyle}, $rmp->{decorstyle},
1295	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},	1739	$rmp->{origin_map}, $rmp->{final_map}, $rmp->{exitstyle}, $rmp->{this_map},
1296	$rmp->{exit_on_final_map},	1740	$rmp->{exit_on_final_map},
1297	$rmp->{xsize}, $rmp->{ysize},	1741	$rmp->{xsize}, $rmp->{ysize},
1298	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},	1742	$rmp->{expand2x}, $rmp->{layoutoptions1}, $rmp->{layoutoptions2}, $rmp->{layoutoptions3},
1299	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},	1743	$rmp->{symmetry}, $rmp->{difficulty}, $rmp->{difficulty_given}, $rmp->{difficulty_increase},
1300	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},	1744	$rmp->{dungeon_level}, $rmp->{dungeon_depth}, $rmp->{decoroptions}, $rmp->{orientation},
1301	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},	1745	$rmp->{origin_y}, $rmp->{origin_x}, $rmp->{random_seed}, $rmp->{total_map_hp},
1302	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},	1746	$rmp->{map_layout_style}, $rmp->{treasureoptions}, $rmp->{symmetry_used},
1303	(cf::region::find $rmp->{region})	1747	(cf::region::find $rmp->{region}), $rmp->{custom}
		1748	)
		1749	}
		1750
		1751	=item cf::map->register ($regex, $prio)
		1752
		1753	Register a handler for the map path matching the given regex at the
		1754	givne priority (higher is better, built-in handlers have priority 0, the
		1755	default).
		1756
		1757	=cut
		1758
		1759	sub register {
		1760	my (undef, $regex, $prio) = @_;
		1761	my $pkg = caller;
		1762
		1763	no strict;
		1764	push @{"$pkg\::ISA"}, __PACKAGE__;
		1765
		1766	$EXT_MAP{$pkg} = [$prio, qr<$regex>];
		1767	}
		1768
		1769	# also paths starting with '/'
		1770	$EXT_MAP{"cf::map"} = [0, qr{^(?=/)}];
		1771
		1772	sub thawer_merge {
		1773	my ($self, $merge) = @_;
		1774
		1775	# we have to keep some variables in memory intact
		1776	local $self->{path};
		1777	local $self->{load_path};
		1778
		1779	$self->SUPER::thawer_merge ($merge);
		1780	}
		1781
		1782	sub normalise {
		1783	my ($path, $base) = @_;
		1784
		1785	$path = "$path"; # make sure its a string
		1786
		1787	$path =~ s/\.map$//;
		1788
		1789	# map plan:
		1790	#
		1791	# /! non-realised random map exit (special hack!)
		1792	# {... are special paths that are not being touched
		1793	# ?xxx/... are special absolute paths
		1794	# ?random/... random maps
		1795	# /... normal maps
		1796	# ~user/... per-player map of a specific user
		1797
		1798	$path =~ s/$PATH_SEP/\//go;
		1799
		1800	# treat it as relative path if it starts with
		1801	# something that looks reasonable
		1802	if ($path =~ m{^(?:\./|\.\./|\w)}) {
		1803	$base or Carp::carp "normalise called with relative path and no base: '$path'";
		1804
		1805	$base =~ s{[^/]+/?$}{};
		1806	$path = "$base/$path";
		1807	}
		1808
		1809	for ($path) {
		1810	redo if s{//}{/};
		1811	redo if s{/\.?/}{/};
		1812	redo if s{/[^/]+/\.\./}{/};
		1813	}
		1814
		1815	$path
		1816	}
		1817
		1818	sub new_from_path {
		1819	my (undef, $path, $base) = @_;
		1820
		1821	return $path if UNIVERSAL::isa $path, "cf::map"; # already a map object
		1822
		1823	$path = normalise $path, $base;
		1824
		1825	for my $pkg (sort { $EXT_MAP{$b}[0] <=> $EXT_MAP{$a}[0] } keys %EXT_MAP) {
		1826	if ($path =~ $EXT_MAP{$pkg}[1]) {
		1827	my $self = bless cf::map::new, $pkg;
		1828	$self->{path} = $path; $self->path ($path);
		1829	$self->init; # pass $1 etc.
		1830	return $self;
		1831	}
		1832	}
		1833
		1834	Carp::cluck "unable to resolve path '$path' (base '$base').";
		1835	()
		1836	}
		1837
		1838	sub init {
		1839	my ($self) = @_;
		1840
		1841	$self
		1842	}
		1843
		1844	sub as_string {
		1845	my ($self) = @_;
		1846
		1847	"$self->{path}"
		1848	}
		1849
		1850	# the displayed name, this is a one way mapping
		1851	sub visible_name {
		1852	&as_string
		1853	}
		1854
		1855	# the original (read-only) location
		1856	sub load_path {
		1857	my ($self) = @_;
		1858
		1859	"$MAPDIR/$self->{path}.map"
		1860	}
		1861
		1862	# the temporary/swap location
		1863	sub save_path {
		1864	my ($self) = @_;
		1865
		1866	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1867	"$TMPDIR/$path.map"
		1868	}
		1869
		1870	# the unique path, undef == no special unique path
		1871	sub uniq_path {
		1872	my ($self) = @_;
		1873
		1874	(my $path = $_[0]{path}) =~ s/\//$PATH_SEP/g;
		1875	"$UNIQUEDIR/$path"
1304	}	1876	}
1305		1877
1306	# and all this just because we cannot iterate over	1878	# and all this just because we cannot iterate over
1307	# all maps in C++...	1879	# all maps in C++...
1308	sub change_all_map_light {	1880	sub change_all_map_light {
…		…
1310		1882
1311	$_->change_map_light ($change)	1883	$_->change_map_light ($change)
1312	for grep $_->outdoor, values %cf::MAP;	1884	for grep $_->outdoor, values %cf::MAP;
1313	}	1885	}
1314		1886
		1887	sub decay_objects {
		1888	my ($self) = @_;
		1889
		1890	return if $self->{deny_reset};
		1891
		1892	$self->do_decay_objects;
		1893	}
		1894
		1895	sub unlink_save {
		1896	my ($self) = @_;
		1897
		1898	utf8::encode (my $save = $self->save_path);
		1899	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink $save;
		1900	IO::AIO::aioreq_pri 4; Coro::AIO::aio_unlink "$save.pst";
		1901	}
		1902
1315	sub try_load_header($) {	1903	sub load_header_from($) {
1316	my ($path) = @_;	1904	my ($self, $path) = @_;
1317		1905
1318	utf8::encode $path;	1906	utf8::encode $path;
1319	aio_open $path, O_RDONLY, 0	1907	my $f = new_from_file cf::object::thawer $path
1320	or return;	1908	or return;
1321		1909
1322	my $map = cf::map::new	1910	$self->_load_header ($f)
1323	or return;	1911	or return;
1324		1912
1325	# for better error messages only, will be overwritten	1913	local $MAP_LOADING{$self->{path}} = $self;
1326	$map->path ($path);	1914	$f->resolve_delayed_derefs;
1327		1915
1328	$map->load_header ($path)	1916	$self->{load_path} = $path;
		1917
		1918	1
		1919	}
		1920
		1921	sub load_header_orig {
		1922	my ($self) = @_;
		1923
		1924	$self->load_header_from ($self->load_path)
		1925	}
		1926
		1927	sub load_header_temp {
		1928	my ($self) = @_;
		1929
		1930	$self->load_header_from ($self->save_path)
		1931	}
		1932
		1933	sub prepare_temp {
		1934	my ($self) = @_;
		1935
		1936	$self->last_access ((delete $self->{last_access})
		1937	|| $cf::RUNTIME); #d#
		1938	# safety
		1939	$self->{instantiate_time} = $cf::RUNTIME
		1940	if $self->{instantiate_time} > $cf::RUNTIME;
		1941	}
		1942
		1943	sub prepare_orig {
		1944	my ($self) = @_;
		1945
		1946	$self->{load_original} = 1;
		1947	$self->{instantiate_time} = $cf::RUNTIME;
		1948	$self->last_access ($cf::RUNTIME);
		1949	$self->instantiate;
		1950	}
		1951
		1952	sub load_header {
		1953	my ($self) = @_;
		1954
		1955	if ($self->load_header_temp) {
		1956	$self->prepare_temp;
		1957	} else {
		1958	$self->load_header_orig
1329	or return;	1959	or return;
		1960	$self->prepare_orig;
		1961	}
1330		1962
1331	$map->{load_path} = $path;	1963	$self->{deny_reset} = 1
		1964	if $self->no_reset;
1332		1965
1333	$map	1966	$self->default_region (cf::region::find_by_path $self->{path})
		1967	unless $self->default_region;
		1968
		1969	1
1334	}	1970	}
1335		1971
1336	sub find;	1972	sub find;
1337	sub find {	1973	sub find {
1338	my ($path, $origin) = @_;	1974	my ($path, $origin) = @_;
1339		1975
1340	#warn "find<$path,$origin>\n";#d#
1341
1342	$path = new cf::path $path, $origin && $origin->path;	1976	$path = normalise $path, $origin && $origin->path;
1343	my $key = $path->as_string;
1344		1977
		1978	cf::lock_wait "map_data:$path";#d#remove
1345	cf::lock_wait "map_find:$key";	1979	cf::lock_wait "map_find:$path";
1346		1980
1347	$cf::MAP{$key} || do {	1981	$cf::MAP{$path} || do {
1348	my $guard = cf::lock_acquire "map_find:$key";	1982	my $guard1 = cf::lock_acquire "map_find:$path";
		1983	my $guard2 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1349		1984
1350	# do it the slow way	1985	my $map = new_from_path cf::map $path
1351	my $map = try_load_header $path->save_path;
1352
1353	Coro::cede;
1354
1355	if ($map) {
1356	$map->last_access ((delete $map->{last_access})
1357	|| $cf::RUNTIME); #d#
1358	# safety
1359	$map->{instantiate_time} = $cf::RUNTIME
1360	if $map->{instantiate_time} > $cf::RUNTIME;
1361	} else {
1362	if (my $rmp = $path->random_map_params) {
1363	$map = generate_random_map $key, $rmp;
1364	} else {
1365	$map = try_load_header $path->load_path;
1366	}
1367
1368	$map or return;	1986	or return;
1369		1987
1370	$map->{load_original} = 1;
1371	$map->{instantiate_time} = $cf::RUNTIME;
1372	$map->last_access ($cf::RUNTIME);
1373	$map->instantiate;
1374
1375	# per-player maps become, after loading, normal maps
1376	$map->per_player (0) if $path->{user_rel};
1377	}
1378
1379	$map->path ($key);
1380	$map->{path} = $path;
1381	$map->{last_save} = $cf::RUNTIME;	1988	$map->{last_save} = $cf::RUNTIME;
1382		1989
1383	Coro::cede;	1990	$map->load_header
		1991	or return;
1384		1992
1385	if ($map->should_reset) {	1993	if ($map->should_reset) {#d#TODO# disabled, crashy (locking issue?)
		1994	# doing this can freeze the server in a sync job, obviously
		1995	#$cf::WAIT_FOR_TICK->wait;
		1996	undef $guard1;
		1997	undef $guard2;
1386	$map->reset;	1998	$map->reset;
1387	undef $guard;
1388	$map = find $path	1999	return find $path;
1389	or return;
1390	}	2000	}
1391		2001
1392	$cf::MAP{$key} = $map	2002	$cf::MAP{$path} = $map
1393	}	2003	}
1394	}	2004	}
		2005
		2006	sub pre_load { }
		2007	sub post_load { }
1395		2008
1396	sub load {	2009	sub load {
1397	my ($self) = @_;	2010	my ($self) = @_;
1398		2011
		2012	local $self->{deny_reset} = 1; # loading can take a long time
		2013
1399	my $path = $self->{path};	2014	my $path = $self->{path};
		2015
		2016	{
1400	my $guard = cf::lock_acquire "map_load:" . $path->as_string;	2017	my $guard = cf::lock_acquire "map_data:$path";
1401		2018
		2019	return unless $self->valid;
1402	return if $self->in_memory != cf::MAP_SWAPPED;	2020	return unless $self->in_memory == cf::MAP_SWAPPED;
1403		2021
1404	$self->in_memory (cf::MAP_LOADING);	2022	$self->in_memory (cf::MAP_LOADING);
1405		2023
1406	$self->alloc;	2024	$self->alloc;
1407	$self->load_objects ($self->{load_path}, 1)	2025
		2026	$self->pre_load;
		2027	cf::cede_to_tick;
		2028
		2029	my $f = new_from_file cf::object::thawer $self->{load_path};
		2030	$f->skip_block;
		2031	$self->_load_objects ($f)
1408	or return;	2032	or return;
1409		2033
1410	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)	2034	$self->set_object_flag (cf::FLAG_OBJ_ORIGINAL, 1)
1411	if delete $self->{load_original};	2035	if delete $self->{load_original};
1412		2036
1413	if (my $uniq = $path->uniq_path) {	2037	if (my $uniq = $self->uniq_path) {
1414	utf8::encode $uniq;	2038	utf8::encode $uniq;
1415	if (aio_open $uniq, O_RDONLY, 0) {	2039	unless (aio_stat $uniq) {
		2040	if (my $f = new_from_file cf::object::thawer $uniq) {
1416	$self->clear_unique_items;	2041	$self->clear_unique_items;
1417	$self->load_objects ($uniq, 0);	2042	$self->_load_objects ($f);
		2043	$f->resolve_delayed_derefs;
		2044	}
1418	}	2045	}
1419	}	2046	}
1420		2047
1421	Coro::cede;	2048	$f->resolve_delayed_derefs;
1422		2049
		2050	cf::cede_to_tick;
1423	# now do the right thing for maps	2051	# now do the right thing for maps
1424	$self->link_multipart_objects;	2052	$self->link_multipart_objects;
1425
1426	if ($self->{path}->is_style_map) {
1427	$self->{deny_save} = 1;
1428	$self->{deny_reset} = 1;
1429	} else {
1430	$self->fix_auto_apply;
1431	$self->decay_objects;
1432	$self->update_buttons;
1433	$self->set_darkness_map;
1434	$self->difficulty ($self->estimate_difficulty)	2053	$self->difficulty ($self->estimate_difficulty)
1435	unless $self->difficulty;	2054	unless $self->difficulty;
		2055	cf::cede_to_tick;
		2056
		2057	unless ($self->{deny_activate}) {
		2058	$self->decay_objects;
		2059	$self->fix_auto_apply;
		2060	$self->update_buttons;
		2061	cf::cede_to_tick;
		2062	$self->set_darkness_map;
		2063	cf::cede_to_tick;
1436	$self->activate;	2064	$self->activate;
1437	}	2065	}
1438		2066
1439	Coro::cede;	2067	$self->{last_save} = $cf::RUNTIME;
		2068	$self->last_access ($cf::RUNTIME);
1440		2069
1441	$self->in_memory (cf::MAP_IN_MEMORY);	2070	$self->in_memory (cf::MAP_IN_MEMORY);
		2071	}
		2072
		2073	$self->post_load;
		2074	}
		2075
		2076	sub customise_for {
		2077	my ($self, $ob) = @_;
		2078
		2079	return find "~" . $ob->name . "/" . $self->{path}
		2080	if $self->per_player;
		2081
		2082	# return find "?party/" . $ob->name . "/" . $self->{path}
		2083	# if $self->per_party;
		2084
		2085	$self
1442	}	2086	}
1443		2087
1444	# find and load all maps in the 3x3 area around a map	2088	# find and load all maps in the 3x3 area around a map
1445	sub load_diag {	2089	sub load_neighbours {
1446	my ($map) = @_;	2090	my ($map) = @_;
1447		2091
1448	my @diag; # diagonal neighbours	2092	my @neigh; # diagonal neighbours
1449		2093
1450	for (0 .. 3) {	2094	for (0 .. 3) {
1451	my $neigh = $map->tile_path ($_)	2095	my $neigh = $map->tile_path ($_)
1452	or next;	2096	or next;
1453	$neigh = find $neigh, $map	2097	$neigh = find $neigh, $map
1454	or next;	2098	or next;
1455	$neigh->load;	2099	$neigh->load;
1456		2100
		2101	push @neigh,
1457	push @diag, [$neigh->tile_path (($_ + 3) % 4), $neigh],	2102	[$neigh->tile_path (($_ + 3) % 4), $neigh],
1458	[$neigh->tile_path (($_ + 1) % 4), $neigh];	2103	[$neigh->tile_path (($_ + 1) % 4), $neigh];
1459	}	2104	}
1460		2105
1461	for (@diag) {	2106	for (grep defined $_->[0], @neigh) {
		2107	my ($path, $origin) = @$_;
1462	my $neigh = find @$_	2108	my $neigh = find $path, $origin
1463	or next;	2109	or next;
1464	$neigh->load;	2110	$neigh->load;
1465	}	2111	}
1466	}	2112	}
1467		2113
…		…
1472	}	2118	}
1473		2119
1474	sub do_load_sync {	2120	sub do_load_sync {
1475	my ($map) = @_;	2121	my ($map) = @_;
1476		2122
		2123	cf::LOG cf::llevDebug | cf::logBacktrace, "do_load_sync"
		2124	if $Coro::current == $Coro::main;
		2125
1477	cf::sync_job { $map->load };	2126	cf::sync_job { $map->load };
1478	}	2127	}
1479		2128
1480	our %MAP_PREFETCH;	2129	our %MAP_PREFETCH;
		2130	our $MAP_PREFETCHER = undef;
		2131
		2132	sub find_async {
		2133	my ($path, $origin, $load) = @_;
		2134
		2135	$path = normalise $path, $origin && $origin->{path};
		2136
		2137	if (my $map = $cf::MAP{$path}) {
		2138	return $map if !$load || $map->in_memory == cf::MAP_IN_MEMORY;
		2139	}
		2140
		2141	$MAP_PREFETCH{$path} |= $load;
		2142
1481	our $MAP_PREFETCHER = Coro::async {	2143	$MAP_PREFETCHER ||= cf::async {
1482	while () {	2144	$Coro::current->{desc} = "map prefetcher";
		2145
1483	while (%MAP_PREFETCH) {	2146	while (%MAP_PREFETCH) {
1484	my $key = each %MAP_PREFETCH	2147	while (my ($k, $v) = each %MAP_PREFETCH) {
1485	or next;	2148	if (my $map = find $k) {
		2149	$map->load if $v;
		2150	}
		2151
1486	my $path = delete $MAP_PREFETCH{$key};	2152	delete $MAP_PREFETCH{$k};
1487
1488	my $map = find $path
1489	or next;
1490	$map->load;
1491	}	2153	}
1492	Coro::schedule;	2154	}
		2155	undef $MAP_PREFETCHER;
1493	}	2156	};
1494	};
1495
1496	sub find_async {
1497	my ($path, $origin) = @_;
1498
1499	$path = new cf::path $path, $origin && $origin->path;
1500	my $key = $path->as_string;
1501
1502	if (my $map = $cf::MAP{$key}) {
1503	return $map if $map->in_memory == cf::MAP_IN_MEMORY;
1504	}
1505
1506	$MAP_PREFETCH{$key} = $path;
1507	$MAP_PREFETCHER->ready;	2157	$MAP_PREFETCHER->prio (6);
1508		2158
1509	()	2159	()
1510	}	2160	}
1511		2161
1512	sub save {	2162	sub save {
1513	my ($self) = @_;	2163	my ($self) = @_;
1514		2164
1515	my $lock = cf::lock_acquire "map_data:" . $self->path;	2165	my $lock = cf::lock_acquire "map_data:$self->{path}";
1516		2166
1517	$self->{last_save} = $cf::RUNTIME;	2167	$self->{last_save} = $cf::RUNTIME;
1518		2168
1519	return unless $self->dirty;	2169	return unless $self->dirty;
1520		2170
1521	my $save = $self->{path}->save_path; utf8::encode $save;	2171	my $save = $self->save_path; utf8::encode $save;
1522	my $uniq = $self->{path}->uniq_path; utf8::encode $uniq;	2172	my $uniq = $self->uniq_path; utf8::encode $uniq;
1523		2173
1524	$self->{load_path} = $save;	2174	$self->{load_path} = $save;
1525		2175
1526	return if $self->{deny_save};	2176	return if $self->{deny_save};
1527		2177
1528	local $self->{last_access} = $self->last_access;#d#	2178	local $self->{last_access} = $self->last_access;#d#
1529		2179
1530	cf::async {	2180	cf::async {
		2181	$Coro::current->{desc} = "map player save";
1531	$_->contr->save for $self->players;	2182	$_->contr->save for $self->players;
1532	};	2183	};
1533		2184
1534	if ($uniq) {	2185	if ($uniq) {
1535	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);	2186	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS);
1536	$self->save_objects ($uniq, cf::IO_UNIQUES);	2187	$self->_save_objects ($uniq, cf::IO_UNIQUES);
1537	} else {	2188	} else {
1538	$self->save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);	2189	$self->_save_objects ($save, cf::IO_HEADER | cf::IO_OBJECTS | cf::IO_UNIQUES);
1539	}	2190	}
1540	}	2191	}
1541		2192
1542	sub swap_out {	2193	sub swap_out {
1543	my ($self) = @_;	2194	my ($self) = @_;
1544		2195
1545	# save first because save cedes	2196	# save first because save cedes
1546	$self->save;	2197	$self->save;
1547		2198
1548	my $lock = cf::lock_acquire "map_data:" . $self->path;	2199	my $lock = cf::lock_acquire "map_data:$self->{path}";
1549		2200
1550	return if $self->players;	2201	return if $self->players;
1551	return if $self->in_memory != cf::MAP_IN_MEMORY;	2202	return if $self->in_memory != cf::MAP_IN_MEMORY;
1552	return if $self->{deny_save};	2203	return if $self->{deny_save};
1553		2204
		2205	$self->in_memory (cf::MAP_SWAPPED);
		2206
		2207	$self->deactivate;
		2208	$_->clear_links_to ($self) for values %cf::MAP;
1554	$self->clear;	2209	$self->clear;
1555	$self->in_memory (cf::MAP_SWAPPED);
1556	}	2210	}
1557		2211
1558	sub reset_at {	2212	sub reset_at {
1559	my ($self) = @_;	2213	my ($self) = @_;
1560		2214
1561	# TODO: safety, remove and allow resettable per-player maps	2215	# TODO: safety, remove and allow resettable per-player maps
1562	return 1e99 if $self->{path}{user_rel};
1563	return 1e99 if $self->{deny_reset};	2216	return 1e99 if $self->{deny_reset};
1564		2217
1565	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;	2218	my $time = $self->fixed_resettime ? $self->{instantiate_time} : $self->last_access;
1566	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;	2219	my $to = List::Util::min $MAX_RESET, $self->reset_timeout || $DEFAULT_RESET;
1567		2220
…		…
1572	my ($self) = @_;	2225	my ($self) = @_;
1573		2226
1574	$self->reset_at <= $cf::RUNTIME	2227	$self->reset_at <= $cf::RUNTIME
1575	}	2228	}
1576		2229
1577	sub unlink_save {
1578	my ($self) = @_;
1579
1580	utf8::encode (my $save = $self->{path}->save_path);
1581	aioreq_pri 3; IO::AIO::aio_unlink $save;
1582	aioreq_pri 3; IO::AIO::aio_unlink "$save.pst";
1583	}
1584
1585	sub rename {
1586	my ($self, $new_path) = @_;
1587
1588	$self->unlink_save;
1589
1590	delete $cf::MAP{$self->path};
1591	$self->{path} = new cf::path $new_path;
1592	$self->path ($self->{path}->as_string);
1593	$cf::MAP{$self->path} = $self;
1594
1595	$self->save;
1596	}
1597
1598	sub reset {	2230	sub reset {
1599	my ($self) = @_;	2231	my ($self) = @_;
1600		2232
1601	my $lock = cf::lock_acquire "map_data:" . $self->path;	2233	my $lock = cf::lock_acquire "map_data:$self->{path}";
1602		2234
1603	return if $self->players;	2235	return if $self->players;
1604	return if $self->{path}{user_rel};#d#
1605		2236
1606	warn "resetting map ", $self->path;#d#	2237	warn "resetting map ", $self->path;
		2238
		2239	$self->in_memory (cf::MAP_SWAPPED);
		2240
		2241	# need to save uniques path
		2242	unless ($self->{deny_save}) {
		2243	my $uniq = $self->uniq_path; utf8::encode $uniq;
		2244
		2245	$self->_save_objects ($uniq, cf::IO_UNIQUES)
		2246	if $uniq;
		2247	}
1607		2248
1608	delete $cf::MAP{$self->path};	2249	delete $cf::MAP{$self->path};
1609		2250
		2251	$self->deactivate;
1610	$_->clear_links_to ($self) for values %cf::MAP;	2252	$_->clear_links_to ($self) for values %cf::MAP;
		2253	$self->clear;
1611		2254
1612	$self->unlink_save;	2255	$self->unlink_save;
1613	$self->destroy;	2256	$self->destroy;
1614	}	2257	}
1615		2258
1616	my $nuke_counter = "aaaa";	2259	my $nuke_counter = "aaaa";
1617		2260
1618	sub nuke {	2261	sub nuke {
1619	my ($self) = @_;	2262	my ($self) = @_;
1620		2263
		2264	{
		2265	my $lock = cf::lock_acquire "map_data:$self->{path}";
		2266
		2267	delete $cf::MAP{$self->path};
		2268
		2269	$self->unlink_save;
		2270
		2271	bless $self, "cf::map";
		2272	delete $self->{deny_reset};
1621	$self->{deny_save} = 1;	2273	$self->{deny_save} = 1;
1622	$self->reset_timeout (1);	2274	$self->reset_timeout (1);
1623	$self->rename ("{nuke}/" . ($nuke_counter++));	2275	$self->path ($self->{path} = "{nuke}/" . ($nuke_counter++));
		2276
		2277	$cf::MAP{$self->path} = $self;
		2278	}
		2279
1624	$self->reset; # polite request, might not happen	2280	$self->reset; # polite request, might not happen
1625	}	2281	}
1626		2282
1627	sub customise_for {	2283	=item $maps = cf::map::tmp_maps
1628	my ($map, $ob) = @_;
1629		2284
1630	if ($map->per_player) {	2285	Returns an arrayref with all map paths of currently instantiated and saved
1631	return cf::map::find "~" . $ob->name . "/" . $map->{path}{path};	2286	maps. May block.
		2287
		2288	=cut
		2289
		2290	sub tmp_maps() {
1632	}	2291	[
		2292	map {
		2293	utf8::decode $_;
		2294	/\.map$/
		2295	? normalise $_
		2296	: ()
		2297	} @{ aio_readdir $TMPDIR or [] }
		2298	]
		2299	}
1633		2300
1634	$map	2301	=item $maps = cf::map::random_maps
		2302
		2303	Returns an arrayref with all map paths of currently instantiated and saved
		2304	random maps. May block.
		2305
		2306	=cut
		2307
		2308	sub random_maps() {
		2309	[
		2310	map {
		2311	utf8::decode $_;
		2312	/\.map$/
		2313	? normalise "?random/$_"
		2314	: ()
		2315	} @{ aio_readdir $RANDOMDIR or [] }
		2316	]
		2317	}
		2318
		2319	=item cf::map::unique_maps
		2320
		2321	Returns an arrayref of paths of all shared maps that have
		2322	instantiated unique items. May block.
		2323
		2324	=cut
		2325
		2326	sub unique_maps() {
		2327	[
		2328	map {
		2329	utf8::decode $_;
		2330	/\.map$/
		2331	? normalise $_
		2332	: ()
		2333	} @{ aio_readdir $UNIQUEDIR or [] }
		2334	]
1635	}	2335	}
1636		2336
1637	package cf;	2337	package cf;
1638		2338
1639	=back	2339	=back
…		…
1657	map { $_, inv_recursive_ $_->inv } @_	2357	map { $_, inv_recursive_ $_->inv } @_
1658	}	2358	}
1659		2359
1660	sub inv_recursive {	2360	sub inv_recursive {
1661	inv_recursive_ inv $_[0]	2361	inv_recursive_ inv $_[0]
		2362	}
		2363
		2364	=item $ref = $ob->ref
		2365
		2366	creates and returns a persistent reference to an objetc that can be stored as a string.
		2367
		2368	=item $ob = cf::object::deref ($refstring)
		2369
		2370	returns the objetc referenced by refstring. may return undef when it cnanot find the object,
		2371	even if the object actually exists. May block.
		2372
		2373	=cut
		2374
		2375	sub deref {
		2376	my ($ref) = @_;
		2377
		2378	if ($ref =~ m{^player\/(<1\.[0-9a-f]+>)/(.*)$}) {
		2379	my ($uuid, $name) = ($1, $2);
		2380	my $pl = $cf::PLAYER_LOADING{$name} || cf::player::find $name
		2381	or return;
		2382	$pl->ob->uuid eq $uuid
		2383	or return;
		2384
		2385	$pl->ob
		2386	} else {
		2387	warn "$ref: cannot resolve object reference\n";
		2388	undef
		2389	}
1662	}	2390	}
1663		2391
1664	package cf;	2392	package cf;
1665		2393
1666	=back	2394	=back
…		…
1685		2413
1686	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;	2414	$flags = cf::NDI_BROWN | cf::NDI_UNIQUE unless @_ >= 4;
1687		2415
1688	if ($self->{record_replies}) {	2416	if ($self->{record_replies}) {
1689	push @{ $self->{record_replies} }, [$npc, $msg, $flags];	2417	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		2418
1690	} else {	2419	} else {
		2420	my $pl = $self->contr;
		2421
		2422	if ($pl->{npc_dialog} && $pl->{npc_dialog}->{id}) {
		2423	my $dialog = $pl->{npc_dialog};
		2424	$dialog->{pl}->ext_msg ($dialog->{id}, update => msg => $dialog->{pl}->expand_cfpod ($msg));
		2425
		2426	} else {
1691	$msg = $npc->name . " says: $msg" if $npc;	2427	$msg = $npc->name . " says: $msg" if $npc;
1692	$self->message ($msg, $flags);	2428	$self->message ($msg, $flags);
		2429	}
1693	}	2430	}
		2431	}
		2432
		2433	=item $object->send_msg ($channel, $msg, $color, [extra...])
		2434
		2435	=cut
		2436
		2437	sub cf::object::send_msg {
		2438	my $pl = shift->contr
		2439	or return;
		2440	$pl->send_msg (@_);
1694	}	2441	}
1695		2442
1696	=item $player_object->may ("access")	2443	=item $player_object->may ("access")
1697		2444
1698	Returns wether the given player is authorized to access resource "access"	2445	Returns wether the given player is authorized to access resource "access"
…		…
1711		2458
1712	=item $player_object->enter_link	2459	=item $player_object->enter_link
1713		2460
1714	Freezes the player and moves him/her to a special map (C<{link}>).	2461	Freezes the player and moves him/her to a special map (C<{link}>).
1715		2462
1716	The player should be reaosnably safe there for short amounts of time. You	2463	The player should be reasonably safe there for short amounts of time. You
1717	I<MUST> call C<leave_link> as soon as possible, though.	2464	I<MUST> call C<leave_link> as soon as possible, though.
1718		2465
		2466	Will never block.
		2467
1719	=item $player_object->leave_link ($map, $x, $y)	2468	=item $player_object->leave_link ($map, $x, $y)
1720		2469
1721	Moves the player out of the specila link map onto the given map. If the	2470	Moves the player out of the special C<{link}> map onto the specified
1722	map is not valid (or omitted), the player will be moved back to the	2471	map. If the map is not valid (or omitted), the player will be moved back
1723	location he/she was before the call to C<enter_link>, or, if that fails,	2472	to the location he/she was before the call to C<enter_link>, or, if that
1724	to the emergency map position.	2473	fails, to the emergency map position.
1725		2474
1726	Might block.	2475	Might block.
1727		2476
1728	=cut	2477	=cut
		2478
		2479	sub link_map {
		2480	unless ($LINK_MAP) {
		2481	$LINK_MAP = cf::map::find "{link}"
		2482	or cf::cleanup "FATAL: unable to provide {link} map, exiting.";
		2483	$LINK_MAP->load;
		2484	}
		2485
		2486	$LINK_MAP
		2487	}
1729		2488
1730	sub cf::object::player::enter_link {	2489	sub cf::object::player::enter_link {
1731	my ($self) = @_;	2490	my ($self) = @_;
1732		2491
1733	$self->deactivate_recursive;	2492	$self->deactivate_recursive;
1734		2493
1735	return if $self->map == $LINK_MAP;	2494	return if UNIVERSAL::isa $self->map, "ext::map_link";
1736		2495
1737	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]	2496	$self->{_link_pos} ||= [$self->map->{path}, $self->x, $self->y]
1738	if $self->map;	2497	if $self->map && $self->map->{path} ne "{link}";
1739		2498
1740	$self->enter_map ($LINK_MAP, 20, 20);	2499	$self->enter_map ($LINK_MAP || link_map, 10, 10);
1741	}	2500	}
1742		2501
1743	sub cf::object::player::leave_link {	2502	sub cf::object::player::leave_link {
1744	my ($self, $map, $x, $y) = @_;	2503	my ($self, $map, $x, $y) = @_;
		2504
		2505	return unless $self->contr->active;
1745		2506
1746	my $link_pos = delete $self->{_link_pos};	2507	my $link_pos = delete $self->{_link_pos};
1747		2508
1748	unless ($map) {	2509	unless ($map) {
1749	# restore original map position	2510	# restore original map position
…		…
1763	# use -1 or undef as default coordinates, not 0, 0	2524	# use -1 or undef as default coordinates, not 0, 0
1764	($x, $y) = ($map->enter_x, $map->enter_y)	2525	($x, $y) = ($map->enter_x, $map->enter_y)
1765	if $x <=0 && $y <= 0;	2526	if $x <=0 && $y <= 0;
1766		2527
1767	$map->load;	2528	$map->load;
1768	$map->load_diag;	2529	$map->load_neighbours;
1769		2530
1770	return unless $self->contr->active;	2531	return unless $self->contr->active;
1771	$self->activate_recursive;	2532	$self->activate_recursive;
		2533
		2534	local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
1772	$self->enter_map ($map, $x, $y);	2535	$self->enter_map ($map, $x, $y);
1773	}	2536	}
1774		2537
1775	cf::player->attach (	2538	=item $player_object->goto ($path, $x, $y[, $check->($map)[, $done->()]])
1776	on_logout => sub {
1777	my ($pl) = @_;
1778		2539
1779	# abort map switching before logout	2540	Moves the player to the given map-path and coordinates by first freezing
1780	if ($pl->ob->{_link_pos}) {	2541	her, loading and preparing them map, calling the provided $check callback
1781	cf::sync_job {	2542	that has to return the map if sucecssful, and then unfreezes the player on
1782	$pl->ob->leave_link	2543	the new (success) or old (failed) map position. In either case, $done will
1783	};	2544	be called at the end of this process.
1784	}
1785	},
1786	on_login => sub {
1787	my ($pl) = @_;
1788		2545
1789	# try to abort aborted map switching on player login :)
1790	# should happen only on crashes
1791	if ($pl->ob->{_link_pos}) {
1792	$pl->ob->enter_link;
1793	(async {
1794	# we need this sleep as the login has a concurrent enter_exit running
1795	# and this sleep increases chances of the player not ending up in scorn
1796	$pl->ob->reply (undef,
1797	"There was an internal problem at your last logout, "
1798	. "the server will try to bring you to your intended destination in a second.",
1799	cf::NDI_RED);
1800	Coro::Timer::sleep 1;
1801	$pl->ob->leave_link;
1802	})->prio (2);
1803	}
1804	},
1805	);
1806
1807	=item $player_object->goto ($path, $x, $y)
1808
1809	=cut	2546	=cut
		2547
		2548	our $GOTOGEN;
1810		2549
1811	sub cf::object::player::goto {	2550	sub cf::object::player::goto {
1812	my ($self, $path, $x, $y) = @_;	2551	my ($self, $path, $x, $y, $check, $done) = @_;
1813		2552
1814	$path = new cf::path $path;	2553	# do generation counting so two concurrent goto's will be executed in-order
1815	$path ne "/" or Carp::cluck ("oy");#d#	2554	my $gen = $self->{_goto_generation} = ++$GOTOGEN;
1816		2555
1817	$self->enter_link;	2556	$self->enter_link;
1818		2557
1819	(async {	2558	(async {
1820	my $map = cf::map::find $path->as_string;	2559	$Coro::current->{desc} = "player::goto $path $x $y";
		2560
		2561	# *tag paths override both path and x|y
		2562	if ($path =~ /^\*(.*)$/) {
		2563	if (my @obs = grep $_->map, ext::map_tags::find $1) {
		2564	my $ob = $obs[rand @obs];
		2565
		2566	# see if we actually can go there
		2567	if (@obs = grep !$self->blocked ($_->map, $_->x, $_->y), $ob, $ob->tail) {
		2568	$ob = $obs[rand @obs];
		2569	} else {
		2570	$self->message ("Wow, it's pretty crowded in there.", cf::NDI_UNIQUE | cf::NDI_RED);
		2571	}
		2572	# else put us there anyways for now #d#
		2573
		2574	($path, $x, $y) = ($ob->map, $ob->x, $ob->y);
		2575	} else {
		2576	($path, $x, $y) = (undef, undef, undef);
		2577	}
		2578	}
		2579
		2580	my $map = eval {
		2581	my $map = defined $path ? cf::map::find $path : undef;
		2582
		2583	if ($map) {
1821	$map = $map->customise_for ($self) if $map;	2584	$map = $map->customise_for ($self);
1822		2585	$map = $check->($map) if $check && $map;
1823	# warn "entering ", $map->path, " at ($x, $y)\n"	2586	} else {
1824	# if $map;
1825
1826	$map or $self->message ("The exit to '" . ($path->visible_name) . "' is closed", cf::NDI_UNIQUE | cf::NDI_RED);	2587	$self->message ("The exit to '$path' is closed.", cf::NDI_UNIQUE | cf::NDI_RED);
		2588	}
1827		2589
		2590	$map
		2591	};
		2592
		2593	if ($@) {
		2594	$self->message ("Something went wrong within the server, please report this incident!", cf::NDI_UNIQUE | cf::NDI_RED);
		2595	LOG llevError | logBacktrace, Carp::longmess $@;
		2596	}
		2597
		2598	if ($gen == $self->{_goto_generation}) {
		2599	delete $self->{_goto_generation};
1828	$self->leave_link ($map, $x, $y);	2600	$self->leave_link ($map, $x, $y);
		2601	}
		2602
		2603	$done->() if $done;
1829	})->prio (1);	2604	})->prio (1);
1830	}	2605	}
1831		2606
1832	=item $player_object->enter_exit ($exit_object)	2607	=item $player_object->enter_exit ($exit_object)
1833		2608
…		…
1835		2610
1836	sub parse_random_map_params {	2611	sub parse_random_map_params {
1837	my ($spec) = @_;	2612	my ($spec) = @_;
1838		2613
1839	my $rmp = { # defaults	2614	my $rmp = { # defaults
1840	xsize => 10,	2615	xsize => (cf::rndm 15, 40),
1841	ysize => 10,	2616	ysize => (cf::rndm 15, 40),
		2617	symmetry => (cf::rndm 1, cf::SYMMETRY_XY),
		2618	#layout => string,
1842	};	2619	};
1843		2620
1844	for (split /\n/, $spec) {	2621	for (split /\n/, $spec) {
1845	my ($k, $v) = split /\s+/, $_, 2;	2622	my ($k, $v) = split /\s+/, $_, 2;
1846		2623
…		…
1850	$rmp	2627	$rmp
1851	}	2628	}
1852		2629
1853	sub prepare_random_map {	2630	sub prepare_random_map {
1854	my ($exit) = @_;	2631	my ($exit) = @_;
		2632
		2633	my $guard = cf::lock_acquire "exit_prepare:$exit";
1855		2634
1856	# all this does is basically replace the /! path by	2635	# all this does is basically replace the /! path by
1857	# a new random map path (?random/...) with a seed	2636	# a new random map path (?random/...) with a seed
1858	# that depends on the exit object	2637	# that depends on the exit object
1859		2638
1860	my $rmp = parse_random_map_params $exit->msg;	2639	my $rmp = parse_random_map_params $exit->msg;
1861		2640
1862	if ($exit->map) {	2641	if ($exit->map) {
1863	$rmp->{region} = $exit->map->region_name;	2642	$rmp->{region} = $exit->region->name;
1864	$rmp->{origin_map} = $exit->map->path;	2643	$rmp->{origin_map} = $exit->map->path;
1865	$rmp->{origin_x} = $exit->x;	2644	$rmp->{origin_x} = $exit->x;
1866	$rmp->{origin_y} = $exit->y;	2645	$rmp->{origin_y} = $exit->y;
1867	}	2646	}
1868		2647
1869	$rmp->{random_seed} ||= $exit->random_seed;	2648	$rmp->{random_seed} ||= $exit->random_seed;
1870		2649
1871	my $data = cf::to_json $rmp;	2650	my $data = cf::encode_json $rmp;
1872	my $md5 = Digest::MD5::md5_hex $data;	2651	my $md5 = Digest::MD5::md5_hex $data;
		2652	my $meta = "$RANDOMDIR/$md5.meta";
1873		2653
1874	if (my $fh = aio_open "$cf::RANDOM_MAPS/$md5.meta", O_WRONLY | O_CREAT, 0666) {	2654	if (my $fh = aio_open "$meta~", O_WRONLY | O_CREAT, 0666) {
1875	aio_write $fh, 0, (length $data), $data, 0;	2655	aio_write $fh, 0, (length $data), $data, 0;
		2656	undef $fh;
		2657	aio_rename "$meta~", $meta;
1876		2658
1877	$exit->slaying ("?random/$md5");	2659	$exit->slaying ("?random/$md5");
1878	$exit->msg (undef);	2660	$exit->msg (undef);
1879	}	2661	}
1880	}	2662	}
…		…
1882	sub cf::object::player::enter_exit {	2664	sub cf::object::player::enter_exit {
1883	my ($self, $exit) = @_;	2665	my ($self, $exit) = @_;
1884		2666
1885	return unless $self->type == cf::PLAYER;	2667	return unless $self->type == cf::PLAYER;
1886		2668
		2669	if ($exit->slaying eq "/!") {
		2670	#TODO: this should de-fi-ni-te-ly not be a sync-job
		2671	# the problem is that $exit might not survive long enough
		2672	# so it needs to be done right now, right here
		2673	cf::sync_job { prepare_random_map $exit };
		2674	}
		2675
		2676	my $slaying = cf::map::normalise $exit->slaying, $exit->map && $exit->map->path;
		2677	my $hp = $exit->stats->hp;
		2678	my $sp = $exit->stats->sp;
		2679
1887	$self->enter_link;	2680	$self->enter_link;
1888		2681
		2682	# if exit is damned, update players death & WoR home-position
		2683	$self->contr->savebed ($slaying, $hp, $sp)
		2684	if $exit->flag (FLAG_DAMNED);
		2685
1889	(async {	2686	(async {
		2687	$Coro::current->{desc} = "enter_exit $slaying $hp $sp";
		2688
1890	$self->deactivate_recursive; # just to be sure	2689	$self->deactivate_recursive; # just to be sure
1891	unless (eval {	2690	unless (eval {
1892	prepare_random_map $exit	2691	$self->goto ($slaying, $hp, $sp);
1893	if $exit->slaying eq "/!";
1894
1895	my $path = new cf::path $exit->slaying, $exit->map && $exit->map->path;
1896	$self->goto ($path, $exit->stats->hp, $exit->stats->sp);
1897		2692
1898	1;	2693	1;
1899	}) {	2694	}) {
1900	$self->message ("Something went wrong deep within the crossfire server. "	2695	$self->message ("Something went wrong deep within the crossfire server. "
1901	. "I'll try to bring you back to the map you were before. "	2696	. "I'll try to bring you back to the map you were before. "
1902	. "Please report this to the dungeon master",	2697	. "Please report this to the dungeon master!",
1903	cf::NDI_UNIQUE | cf::NDI_RED);	2698	cf::NDI_UNIQUE | cf::NDI_RED);
1904		2699
1905	warn "ERROR in enter_exit: $@";	2700	warn "ERROR in enter_exit: $@";
1906	$self->leave_link;	2701	$self->leave_link;
1907	}	2702	}
1908	})->prio (1);	2703	})->prio (1);
…		…
1921		2716
1922	sub cf::client::send_drawinfo {	2717	sub cf::client::send_drawinfo {
1923	my ($self, $text, $flags) = @_;	2718	my ($self, $text, $flags) = @_;
1924		2719
1925	utf8::encode $text;	2720	utf8::encode $text;
1926	$self->send_packet (sprintf "drawinfo %d %s", $flags, $text);	2721	$self->send_packet (sprintf "drawinfo %d %s", $flags || cf::NDI_BLACK, $text);
1927	}	2722	}
1928		2723
		2724	=item $client->send_msg ($channel, $msg, $color, [extra...])
		2725
		2726	Send a drawinfo or msg packet to the client, formatting the msg for the
		2727	client if neccessary. C<$type> should be a string identifying the type of
		2728	the message, with C<log> being the default. If C<$color> is negative, suppress
		2729	the message unless the client supports the msg packet.
		2730
		2731	=cut
		2732
		2733	# non-persistent channels (usually the info channel)
		2734	our %CHANNEL = (
		2735	"c/identify" => {
		2736	id => "infobox",
		2737	title => "Identify",
		2738	reply => undef,
		2739	tooltip => "Items recently identified",
		2740	},
		2741	"c/examine" => {
		2742	id => "infobox",
		2743	title => "Examine",
		2744	reply => undef,
		2745	tooltip => "Signs and other items you examined",
		2746	},
		2747	"c/book" => {
		2748	id => "infobox",
		2749	title => "Book",
		2750	reply => undef,
		2751	tooltip => "The contents of a note or book",
		2752	},
		2753	"c/lookat" => {
		2754	id => "infobox",
		2755	title => "Look",
		2756	reply => undef,
		2757	tooltip => "What you saw there",
		2758	},
		2759	"c/who" => {
		2760	id => "infobox",
		2761	title => "Players",
		2762	reply => undef,
		2763	tooltip => "Shows players who are currently online",
		2764	},
		2765	"c/body" => {
		2766	id => "infobox",
		2767	title => "Body Parts",
		2768	reply => undef,
		2769	tooltip => "Shows which body parts you posess and are available",
		2770	},
		2771	"c/uptime" => {
		2772	id => "infobox",
		2773	title => "Uptime",
		2774	reply => undef,
		2775	tooltip => "How long the server has been running since last restart",
		2776	},
		2777	"c/mapinfo" => {
		2778	id => "infobox",
		2779	title => "Map Info",
		2780	reply => undef,
		2781	tooltip => "Information related to the maps",
		2782	},
		2783	);
		2784
		2785	sub cf::client::send_msg {
		2786	my ($self, $channel, $msg, $color, @extra) = @_;
		2787
		2788	$msg = $self->pl->expand_cfpod ($msg);
		2789
		2790	$color &= cf::NDI_CLIENT_MASK; # just in case...
		2791
		2792	# check predefined channels, for the benefit of C
		2793	if ($CHANNEL{$channel}) {
		2794	$channel = $CHANNEL{$channel};
		2795
		2796	$self->ext_msg (channel_info => $channel)
		2797	if $self->can_msg;
		2798
		2799	$channel = $channel->{id};
		2800
		2801	} elsif (ref $channel) {
		2802	# send meta info to client, if not yet sent
		2803	unless (exists $self->{channel}{$channel->{id}}) {
		2804	$self->{channel}{$channel->{id}} = $channel;
		2805	$self->ext_msg (channel_info => $channel)
		2806	if $self->can_msg;
		2807	}
		2808
		2809	$channel = $channel->{id};
		2810	}
		2811
		2812	return unless @extra || length $msg;
		2813
		2814	if ($self->can_msg) {
		2815	# default colour, mask it out
		2816	$color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
		2817	if $color & cf::NDI_DEF;
		2818
		2819	$self->send_packet ("msg " . $self->{json_coder}->encode (
		2820	[$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]));
		2821	} else {
		2822	if ($color >= 0) {
		2823	# replace some tags by gcfclient-compatible ones
		2824	for ($msg) {
		2825	1 while
		2826	s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
		2827	|| s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
		2828	|| s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
		2829	|| s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
		2830	|| s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
		2831	}
		2832
		2833	$color &= cf::NDI_COLOR_MASK;
		2834
		2835	utf8::encode $msg;
		2836
		2837	if (0 && $msg =~ /\[/) {
		2838	# COMMAND/INFO
		2839	$self->send_packet ("drawextinfo $color 10 8 $msg")
		2840	} else {
		2841	$msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
		2842	$self->send_packet ("drawinfo $color $msg")
		2843	}
		2844	}
		2845	}
		2846	}
		2847
		2848	=item $client->ext_msg ($type, @msg)
		2849
		2850	Sends an ext event to the client.
		2851
		2852	=cut
		2853
		2854	sub cf::client::ext_msg($$@) {
		2855	my ($self, $type, @msg) = @_;
		2856
		2857	if ($self->extcmd == 2) {
		2858	$self->send_packet ("ext " . $self->{json_coder}->encode ([$type, @msg]));
		2859	} elsif ($self->extcmd == 1) { # TODO: remove
		2860	push @msg, msgtype => "event_$type";
		2861	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2862	}
		2863	}
		2864
		2865	=item $client->ext_reply ($msgid, @msg)
		2866
		2867	Sends an ext reply to the client.
		2868
		2869	=cut
		2870
		2871	sub cf::client::ext_reply($$@) {
		2872	my ($self, $id, @msg) = @_;
		2873
		2874	if ($self->extcmd == 2) {
		2875	$self->send_packet ("ext " . $self->{json_coder}->encode (["reply-$id", @msg]));
		2876	} elsif ($self->extcmd == 1) {
		2877	#TODO: version 1, remove
		2878	unshift @msg, msgtype => "reply", msgid => $id;
		2879	$self->send_packet ("ext " . $self->{json_coder}->encode ({@msg}));
		2880	}
		2881	}
1929		2882
1930	=item $success = $client->query ($flags, "text", \&cb)	2883	=item $success = $client->query ($flags, "text", \&cb)
1931		2884
1932	Queues a query to the client, calling the given callback with	2885	Queues a query to the client, calling the given callback with
1933	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,	2886	the reply text on a reply. flags can be C<cf::CS_QUERY_YESNO>,
1934	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.	2887	C<cf::CS_QUERY_SINGLECHAR> or C<cf::CS_QUERY_HIDEINPUT> or C<0>.
1935		2888
1936	Queries can fail, so check the return code. Or don't, as queries will become	2889	Queries can fail, so check the return code. Or don't, as queries will
1937	reliable at some point in the future.	2890	become reliable at some point in the future.
1938		2891
1939	=cut	2892	=cut
1940		2893
1941	sub cf::client::query {	2894	sub cf::client::query {
1942	my ($self, $flags, $text, $cb) = @_;	2895	my ($self, $flags, $text, $cb) = @_;
…		…
1950	utf8::encode $text;	2903	utf8::encode $text;
1951	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];	2904	push @{ $self->{query_queue} }, [(sprintf "query %d %s", $flags, $text), $cb];
1952		2905
1953	$self->send_packet ($self->{query_queue}[0][0])	2906	$self->send_packet ($self->{query_queue}[0][0])
1954	if @{ $self->{query_queue} } == 1;	2907	if @{ $self->{query_queue} } == 1;
		2908
		2909	1
1955	}	2910	}
1956		2911
1957	cf::client->attach (	2912	cf::client->attach (
		2913	on_connect => sub {
		2914	my ($ns) = @_;
		2915
		2916	$ns->{json_coder} = JSON::XS->new->utf8->max_size (1e6)->convert_blessed;
		2917	},
1958	on_reply => sub {	2918	on_reply => sub {
1959	my ($ns, $msg) = @_;	2919	my ($ns, $msg) = @_;
1960		2920
1961	# this weird shuffling is so that direct followup queries	2921	# this weird shuffling is so that direct followup queries
1962	# get handled first	2922	# get handled first
1963	my $queue = delete $ns->{query_queue}	2923	my $queue = delete $ns->{query_queue}
1964	or return; # be conservative, not sure how that can happen, but we saw a crash here	2924	or return; # be conservative, not sure how that can happen, but we saw a crash here
1965		2925
1966	(shift @$queue)->[1]->($msg);	2926	(shift @$queue)->[1]->($msg);
		2927	return unless $ns->valid; # temporary(?) workaround for callback destroying socket
1967		2928
1968	push @{ $ns->{query_queue} }, @$queue;	2929	push @{ $ns->{query_queue} }, @$queue;
1969		2930
1970	if (@{ $ns->{query_queue} } == @$queue) {	2931	if (@{ $ns->{query_queue} } == @$queue) {
1971	if (@$queue) {	2932	if (@$queue) {
…		…
1973	} else {	2934	} else {
1974	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;	2935	$ns->state (ST_PLAYING) if $ns->state == ST_CUSTOM;
1975	}	2936	}
1976	}	2937	}
1977	},	2938	},
		2939	on_exticmd => sub {
		2940	my ($ns, $buf) = @_;
		2941
		2942	my $msg = eval { $ns->{json_coder}->decode ($buf) };
		2943
		2944	if (ref $msg) {
		2945	my ($type, $reply, @payload) =
		2946	"ARRAY" eq ref $msg
		2947	? @$msg
		2948	: ($msg->{msgtype}, $msg->{msgid}, %$msg); # TODO: version 1, remove
		2949
		2950	my @reply;
		2951
		2952	if (my $cb = $EXTICMD{$type}) {
		2953	@reply = $cb->($ns, @payload);
		2954	}
		2955
		2956	$ns->ext_reply ($reply, @reply)
		2957	if $reply;
		2958
		2959	} else {
		2960	warn "client " . ($ns->pl ? $ns->pl->ob->name : $ns->host) . " sent unparseable exti message: <$buf>\n";
		2961	}
		2962
		2963	cf::override;
		2964	},
1978	);	2965	);
1979		2966
1980	=item $client->async (\&cb)	2967	=item $client->async (\&cb)
1981		2968
1982	Create a new coroutine, running the specified callback. The coroutine will	2969	Create a new coroutine, running the specified callback. The coroutine will
…		…
2023	our $safe = new Safe "safe";	3010	our $safe = new Safe "safe";
2024	our $safe_hole = new Safe::Hole;	3011	our $safe_hole = new Safe::Hole;
2025		3012
2026	$SIG{FPE} = 'IGNORE';	3013	$SIG{FPE} = 'IGNORE';
2027		3014
2028	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));	3015	$safe->permit_only (Opcode::opset qw(
		3016	:base_core :base_mem :base_orig :base_math
		3017	grepstart grepwhile mapstart mapwhile
		3018	sort time
		3019	));
2029		3020
2030	# here we export the classes and methods available to script code	3021	# here we export the classes and methods available to script code
2031		3022
2032	=pod	3023	=pod
2033		3024
2034	The following fucntions and emthods are available within a safe environment:	3025	The following functions and methods are available within a safe environment:
2035		3026
2036	cf::object contr pay_amount pay_player map	3027	cf::object
		3028	contr pay_amount pay_player map x y force_find force_add destroy
		3029	insert remove name archname title slaying race decrease_ob_nr
		3030
2037	cf::object::player player	3031	cf::object::player
2038	cf::player peaceful	3032	player
2039	cf::map trigger	3033
		3034	cf::player
		3035	peaceful
		3036
		3037	cf::map
		3038	trigger
2040		3039
2041	=cut	3040	=cut
2042		3041
2043	for (	3042	for (
2044	["cf::object" => qw(contr pay_amount pay_player map)],	3043	["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
		3044	insert remove inv name archname title slaying race
		3045	decrease_ob_nr destroy)],
2045	["cf::object::player" => qw(player)],	3046	["cf::object::player" => qw(player)],
2046	["cf::player" => qw(peaceful)],	3047	["cf::player" => qw(peaceful)],
2047	["cf::map" => qw(trigger)],	3048	["cf::map" => qw(trigger)],
2048	) {	3049	) {
2049	no strict 'refs';	3050	no strict 'refs';
…		…
2120	=back	3121	=back
2121		3122
2122	=cut	3123	=cut
2123		3124
2124	#############################################################################	3125	#############################################################################
		3126	# the server's init and main functions
2125		3127
2126	=head2 EXTENSION DATABASE SUPPORT	3128	sub load_facedata($) {
		3129	my ($path) = @_;
2127		3130
2128	Crossfire maintains a very simple database for extension use. It can	3131	# HACK to clear player env face cache, we need some signal framework
2129	currently store anything that can be serialised using Storable, which	3132	# for this (global event?)
2130	excludes objects.	3133	%ext::player_env::MUSIC_FACE_CACHE = ();
2131		3134
2132	The parameter C<$family> should best start with the name of the extension	3135	my $enc = JSON::XS->new->utf8->canonical->relaxed;
2133	using it, it should be unique.
2134		3136
2135	=over 4	3137	warn "loading facedata from $path\n";
2136		3138
2137	=item $hashref = cf::db_get $family	3139	my $facedata;
		3140	0 < aio_load $path, $facedata
		3141	or die "$path: $!";
2138		3142
2139	Return a hashref for use by the extension C<$family>, which can be	3143	$facedata = Coro::Storable::thaw $facedata;
2140	modified. After modifications, you have to call C<cf::db_dirty> or
2141	C<cf::db_sync>.
2142		3144
2143	=item $value = cf::db_get $family => $key	3145	$facedata->{version} == 2
		3146	or cf::cleanup "$path: version mismatch, cannot proceed.";
2144		3147
2145	Returns a single value from the database	3148	# patch in the exptable
2146		3149	$facedata->{resource}{"res/exp_table"} = {
2147	=item cf::db_put $family => $hashref	3150	type => FT_RSRC,
2148		3151	data => $enc->encode ([map cf::level_to_min_exp $_, 1 .. cf::settings->max_level]),
2149	Stores the given family hashref into the database. Updates are delayed, if
2150	you want the data to be synced to disk immediately, use C<cf::db_sync>.
2151
2152	=item cf::db_put $family => $key => $value
2153
2154	Stores the given C<$value> in the family hash. Updates are delayed, if you
2155	want the data to be synced to disk immediately, use C<cf::db_sync>.
2156
2157	=item cf::db_dirty
2158
2159	Marks the database as dirty, to be updated at a later time.
2160
2161	=item cf::db_sync
2162
2163	Immediately write the database to disk I<if it is dirty>.
2164
2165	=cut
2166
2167	our $DB;
2168
2169	{
2170	my $path = cf::localdir . "/database.pst";
2171
2172	sub db_load() {
2173	$DB = stat $path ? Storable::retrieve $path : { };
2174	}
2175
2176	my $pid;
2177
2178	sub db_save() {
2179	waitpid $pid, 0 if $pid;
2180	if (0 == ($pid = fork)) {
2181	$DB->{_meta}{version} = 1;
2182	Storable::nstore $DB, "$path~";
2183	rename "$path~", $path;
2184	cf::_exit 0 if defined $pid;
2185	}
2186	}
2187
2188	my $dirty;
2189
2190	sub db_sync() {
2191	db_save if $dirty;
2192	undef $dirty;
2193	}
2194
2195	my $idle = Event->idle (min => $TICK * 2.8, max => 10, repeat => 0, data => WF_AUTOCANCEL, cb => sub {
2196	db_sync;
2197	});	3152	};
		3153	cf::cede_to_tick;
2198		3154
2199	sub db_dirty() {
2200	$dirty = 1;
2201	$idle->start;
2202	}	3155	{
		3156	my $faces = $facedata->{faceinfo};
2203		3157
2204	sub db_get($;$) {	3158	while (my ($face, $info) = each %$faces) {
2205	@_ >= 2	3159	my $idx = (cf::face::find $face) || cf::face::alloc $face;
2206	? $DB->{$_[0]}{$_[1]}
2207	: ($DB->{$_[0]} ||= { })
2208	}
2209		3160
2210	sub db_put($$;$) {	3161	cf::face::set_visibility $idx, $info->{visibility};
2211	if (@_ >= 3) {	3162	cf::face::set_magicmap $idx, $info->{magicmap};
2212	$DB->{$_[0]}{$_[1]} = $_[2];	3163	cf::face::set_data $idx, 0, $info->{data32}, Digest::MD5::md5 $info->{data32};
2213	} else {	3164	cf::face::set_data $idx, 1, $info->{data64}, Digest::MD5::md5 $info->{data64};
2214	$DB->{$_[0]} = $_[1];
2215	}
2216	db_dirty;
2217	}
2218		3165
2219	cf::global->attach (	3166	cf::cede_to_tick;
2220	prio => 10000,
2221	on_cleanup => sub {
2222	db_sync;
2223	},	3167	}
2224	);
2225	}
2226		3168
2227	#############################################################################	3169	while (my ($face, $info) = each %$faces) {
2228	# the server's main()	3170	next unless $info->{smooth};
2229		3171
2230	sub cfg_load {	3172	my $idx = cf::face::find $face
		3173	or next;
		3174
		3175	if (my $smooth = cf::face::find $info->{smooth}) {
		3176	cf::face::set_smooth $idx, $smooth;
		3177	cf::face::set_smoothlevel $idx, $info->{smoothlevel};
		3178	} else {
		3179	warn "smooth face '$info->{smooth}' not found for face '$face'";
		3180	}
		3181
		3182	cf::cede_to_tick;
		3183	}
		3184	}
		3185
		3186	{
		3187	my $anims = $facedata->{animinfo};
		3188
		3189	while (my ($anim, $info) = each %$anims) {
		3190	cf::anim::set $anim, $info->{frames}, $info->{facings};
		3191	cf::cede_to_tick;
		3192	}
		3193
		3194	cf::anim::invalidate_all; # d'oh
		3195	}
		3196
		3197	{
		3198	# TODO: for gcfclient pleasure, we should give resources
		3199	# that gcfclient doesn't grok a >10000 face index.
		3200	my $res = $facedata->{resource};
		3201
		3202	while (my ($name, $info) = each %$res) {
		3203	if (defined $info->{type}) {
		3204	my $idx = (cf::face::find $name) || cf::face::alloc $name;
		3205	my $data;
		3206
		3207	if ($info->{type} & 1) {
		3208	# prepend meta info
		3209
		3210	my $meta = $enc->encode ({
		3211	name => $name,
		3212	%{ $info->{meta} || {} },
		3213	});
		3214
		3215	$data = pack "(w/a*)*", $meta, $info->{data};
		3216	} else {
		3217	$data = $info->{data};
		3218	}
		3219
		3220	cf::face::set_data $idx, 0, $data, Digest::MD5::md5 $data;
		3221	cf::face::set_type $idx, $info->{type};
		3222	} else {
		3223	$RESOURCE{$name} = $info;
		3224	}
		3225
		3226	cf::cede_to_tick;
		3227	}
		3228	}
		3229
		3230	cf::global->invoke (EVENT_GLOBAL_RESOURCE_UPDATE);
		3231
		3232	1
		3233	}
		3234
		3235	cf::global->attach (on_resource_update => sub {
		3236	if (my $soundconf = $RESOURCE{"res/sound.conf"}) {
		3237	$soundconf = JSON::XS->new->utf8->relaxed->decode ($soundconf->{data});
		3238
		3239	for (0 .. SOUND_CAST_SPELL_0 - 1) {
		3240	my $sound = $soundconf->{compat}[$_]
		3241	or next;
		3242
		3243	my $face = cf::face::find "sound/$sound->[1]";
		3244	cf::sound::set $sound->[0] => $face;
		3245	cf::sound::old_sound_index $_, $face; # gcfclient-compat
		3246	}
		3247
		3248	while (my ($k, $v) = each %{$soundconf->{event}}) {
		3249	my $face = cf::face::find "sound/$v";
		3250	cf::sound::set $k => $face;
		3251	}
		3252	}
		3253	});
		3254
		3255	register_exticmd fx_want => sub {
		3256	my ($ns, $want) = @_;
		3257
		3258	while (my ($k, $v) = each %$want) {
		3259	$ns->fx_want ($k, $v);
		3260	}
		3261	};
		3262
		3263	sub reload_regions {
		3264	# HACK to clear player env face cache, we need some signal framework
		3265	# for this (global event?)
		3266	%ext::player_env::MUSIC_FACE_CACHE = ();
		3267
		3268	load_resource_file "$MAPDIR/regions"
		3269	or die "unable to load regions file\n";
		3270
		3271	for (cf::region::list) {
		3272	$_->{match} = qr/$_->{match}/
		3273	if exists $_->{match};
		3274	}
		3275	}
		3276
		3277	sub reload_facedata {
		3278	load_facedata "$DATADIR/facedata"
		3279	or die "unable to load facedata\n";
		3280	}
		3281
		3282	sub reload_archetypes {
		3283	load_resource_file "$DATADIR/archetypes"
		3284	or die "unable to load archetypes\n";
		3285	#d# NEED to laod twice to resolve forward references
		3286	# this really needs to be done in an extra post-pass
		3287	# (which needs to be synchronous, so solve it differently)
		3288	load_resource_file "$DATADIR/archetypes"
		3289	or die "unable to load archetypes\n";
		3290	}
		3291
		3292	sub reload_treasures {
		3293	load_resource_file "$DATADIR/treasures"
		3294	or die "unable to load treasurelists\n";
		3295	}
		3296
		3297	sub reload_resources {
		3298	warn "reloading resource files...\n";
		3299
		3300	reload_regions;
		3301	reload_facedata;
		3302	#reload_archetypes;#d#
		3303	reload_archetypes;
		3304	reload_treasures;
		3305
		3306	warn "finished reloading resource files\n";
		3307	}
		3308
		3309	sub init {
		3310	reload_resources;
		3311	}
		3312
		3313	sub reload_config {
2231	open my $fh, "<:utf8", cf::confdir . "/config"	3314	open my $fh, "<:utf8", "$CONFDIR/config"
2232	or return;	3315	or return;
2233		3316
2234	local $/;	3317	local $/;
2235	*CFG = YAML::Syck::Load <$fh>;	3318	*CFG = YAML::Syck::Load <$fh>;
2236		3319
…		…
2250		3333
2251	sub main {	3334	sub main {
2252	# we must not ever block the main coroutine	3335	# we must not ever block the main coroutine
2253	local $Coro::idle = sub {	3336	local $Coro::idle = sub {
2254	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#	3337	Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
2255	async { Event::one_event };	3338	(async {
		3339	$Coro::current->{desc} = "IDLE BUG HANDLER";
		3340	EV::loop EV::LOOP_ONESHOT;
		3341	})->prio (Coro::PRIO_MAX);
2256	};	3342	};
2257		3343
2258	cfg_load;	3344	reload_config;
2259	db_load;	3345	db_init;
2260	load_extensions;	3346	load_extensions;
		3347
		3348	$TICK_WATCHER->start;
		3349	$Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
2261	Event::loop;	3350	EV::loop;
2262	}	3351	}
2263		3352
2264	#############################################################################	3353	#############################################################################
2265	# initialisation and cleanup	3354	# initialisation and cleanup
2266		3355
2267	# install some emergency cleanup handlers	3356	# install some emergency cleanup handlers
2268	BEGIN {	3357	BEGIN {
		3358	our %SIGWATCHER = ();
2269	for my $signal (qw(INT HUP TERM)) {	3359	for my $signal (qw(INT HUP TERM)) {
2270	Event->signal (	3360	$SIGWATCHER{$signal} = EV::signal $signal, sub {
2271	data => WF_AUTOCANCEL,
2272	signal => $signal,
2273	cb => sub {
2274	cf::cleanup "SIG$signal";	3361	cf::cleanup "SIG$signal";
2275	},
2276	);	3362	};
		3363	}
		3364	}
		3365
		3366	sub write_runtime {
		3367	my $runtime = "$LOCALDIR/runtime";
		3368
		3369	# first touch the runtime file to show we are still running:
		3370	# the fsync below can take a very very long time.
		3371
		3372	IO::AIO::aio_utime $runtime, undef, undef;
		3373
		3374	my $guard = cf::lock_acquire "write_runtime";
		3375
		3376	my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644
		3377	or return;
		3378
		3379	my $value = $cf::RUNTIME + 90 + 10;
		3380	# 10 is the runtime save interval, for a monotonic clock
		3381	# 60 allows for the watchdog to kill the server.
		3382
		3383	(aio_write $fh, 0, (length $value), $value, 0) <= 0
		3384	and return;
		3385
		3386	# always fsync - this file is important
		3387	aio_fsync $fh
		3388	and return;
		3389
		3390	# touch it again to show we are up-to-date
		3391	aio_utime $fh, undef, undef;
		3392
		3393	close $fh
		3394	or return;
		3395
		3396	aio_rename "$runtime~", $runtime
		3397	and return;
		3398
		3399	warn "runtime file written.\n";
		3400
2277	}	3401	1
2278	}	3402	}
2279		3403
2280	sub emergency_save() {	3404	sub emergency_save() {
2281	my $freeze_guard = cf::freeze_mainloop;	3405	my $freeze_guard = cf::freeze_mainloop;
2282		3406
2283	warn "enter emergency perl save\n";	3407	warn "enter emergency perl save\n";
2284		3408
2285	cf::sync_job {	3409	cf::sync_job {
2286	# use a peculiar iteration method to avoid tripping on perl	3410	# use a peculiar iteration method to avoid tripping on perl
2287	# refcount bugs in for. also avoids problems with players	3411	# refcount bugs in for. also avoids problems with players
2288	# and maps saved/Destroyed asynchronously.	3412	# and maps saved/destroyed asynchronously.
2289	warn "begin emergency player save\n";	3413	warn "begin emergency player save\n";
2290	for my $login (keys %cf::PLAYER) {	3414	for my $login (keys %cf::PLAYER) {
2291	my $pl = $cf::PLAYER{$login} or next;	3415	my $pl = $cf::PLAYER{$login} or next;
2292	$pl->valid or next;	3416	$pl->valid or next;
		3417	delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
2293	$pl->save;	3418	$pl->save;
2294	}	3419	}
2295	warn "end emergency player save\n";	3420	warn "end emergency player save\n";
2296		3421
2297	warn "begin emergency map save\n";	3422	warn "begin emergency map save\n";
…		…
2299	my $map = $cf::MAP{$path} or next;	3424	my $map = $cf::MAP{$path} or next;
2300	$map->valid or next;	3425	$map->valid or next;
2301	$map->save;	3426	$map->save;
2302	}	3427	}
2303	warn "end emergency map save\n";	3428	warn "end emergency map save\n";
		3429
		3430	warn "begin emergency database checkpoint\n";
		3431	BDB::db_env_txn_checkpoint $DB_ENV;
		3432	warn "end emergency database checkpoint\n";
2304	};	3433	};
2305		3434
2306	warn "leave emergency perl save\n";	3435	warn "leave emergency perl save\n";
2307	}	3436	}
2308		3437
		3438	sub post_cleanup {
		3439	my ($make_core) = @_;
		3440
		3441	warn Carp::longmess "post_cleanup backtrace"
		3442	if $make_core;
		3443	}
		3444
2309	sub reload() {	3445	sub do_reload_perl() {
2310	# can/must only be called in main	3446	# can/must only be called in main
2311	if ($Coro::current != $Coro::main) {	3447	if ($Coro::current != $Coro::main) {
2312	warn "can only reload from main coroutine\n";	3448	warn "can only reload from main coroutine";
2313	return;	3449	return;
2314	}	3450	}
2315		3451
2316	warn "reloading...";	3452	warn "reloading...";
2317		3453
2318	my $guard = freeze_mainloop;	3454	warn "entering sync_job";
		3455
		3456	cf::sync_job {
		3457	cf::write_runtime; # external watchdog should not bark
2319	cf::emergency_save;	3458	cf::emergency_save;
		3459	cf::write_runtime; # external watchdog should not bark
2320		3460
2321	eval {	3461	warn "syncing database to disk";
		3462	BDB::db_env_txn_checkpoint $DB_ENV;
		3463
2322	# if anything goes wrong in here, we should simply crash as we already saved	3464	# if anything goes wrong in here, we should simply crash as we already saved
2323		3465
2324	# cancel all watchers	3466	warn "flushing outstanding aio requests";
2325	for (Event::all_watchers) {	3467	for (;;) {
2326	$_->cancel if $_->data & WF_AUTOCANCEL;	3468	BDB::flush;
		3469	IO::AIO::flush;
		3470	Coro::cede_notself;
		3471	last unless IO::AIO::nreqs || BDB::nreqs;
		3472	warn "iterate...";
2327	}	3473	}
2328		3474
		3475	++$RELOAD;
		3476
2329	# cancel all extension coros	3477	warn "cancelling all extension coros";
2330	$_->cancel for values %EXT_CORO;	3478	$_->cancel for values %EXT_CORO;
2331	%EXT_CORO = ();	3479	%EXT_CORO = ();
2332		3480
2333	# unload all extensions	3481	warn "removing commands";
2334	for (@exts) {	3482	%COMMAND = ();
		3483
		3484	warn "removing ext/exti commands";
		3485	%EXTCMD = ();
		3486	%EXTICMD = ();
		3487
		3488	warn "unloading/nuking all extensions";
		3489	for my $pkg (@EXTS) {
2335	warn "unloading <$_>";	3490	warn "... unloading $pkg";
2336	unload_extension $_;	3491
		3492	if (my $cb = $pkg->can ("unload")) {
		3493	eval {
		3494	$cb->($pkg);
		3495	1
		3496	} or warn "$pkg unloaded, but with errors: $@";
2337	}	3497	}
2338		3498
		3499	warn "... nuking $pkg";
		3500	Symbol::delete_package $pkg;
		3501	}
		3502
2339	# unload all modules loaded from $LIBDIR	3503	warn "unloading all perl modules loaded from $LIBDIR";
2340	while (my ($k, $v) = each %INC) {	3504	while (my ($k, $v) = each %INC) {
2341	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;	3505	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
2342		3506
2343	warn "removing <$k>";	3507	warn "... unloading $k";
2344	delete $INC{$k};	3508	delete $INC{$k};
2345		3509
2346	$k =~ s/\.pm$//;	3510	$k =~ s/\.pm$//;
2347	$k =~ s/\//::/g;	3511	$k =~ s/\//::/g;
2348		3512
…		…
2351	}	3515	}
2352		3516
2353	Symbol::delete_package $k;	3517	Symbol::delete_package $k;
2354	}	3518	}
2355		3519
2356	# sync database to disk
2357	cf::db_sync;
2358	IO::AIO::flush;
2359
2360	# get rid of safe::, as good as possible	3520	warn "getting rid of safe::, as good as possible";
2361	Symbol::delete_package "safe::$_"	3521	Symbol::delete_package "safe::$_"
2362	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);	3522	for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
2363		3523
2364	# remove register_script_function callbacks
2365	# TODO
2366
2367	# unload cf.pm "a bit"	3524	warn "unloading cf.pm \"a bit\"";
2368	delete $INC{"cf.pm"};	3525	delete $INC{"cf.pm"};
		3526	delete $INC{"cf/pod.pm"};
2369		3527
2370	# don't, removes xs symbols, too,	3528	# don't, removes xs symbols, too,
2371	# and global variables created in xs	3529	# and global variables created in xs
2372	#Symbol::delete_package __PACKAGE__;	3530	#Symbol::delete_package __PACKAGE__;
2373		3531
2374	# reload cf.pm	3532	warn "unload completed, starting to reload now";
		3533
2375	warn "reloading cf.pm";	3534	warn "reloading cf.pm";
2376	require cf;	3535	require cf;
2377	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt	3536	cf::_connect_to_perl; # nominally unnecessary, but cannot hurt
2378		3537
2379	# load config and database again	3538	warn "loading config and database again";
2380	cf::cfg_load;	3539	cf::reload_config;
2381	cf::db_load;
2382		3540
2383	# load extensions
2384	warn "load extensions";	3541	warn "loading extensions";
2385	cf::load_extensions;	3542	cf::load_extensions;
2386		3543
2387	# reattach attachments to objects	3544	warn "reattaching attachments to objects/players";
2388	warn "reattach";	3545	_global_reattach; # objects, sockets
2389	_global_reattach;	3546	warn "reattaching attachments to maps";
2390	reattach $_ for values %MAP;	3547	reattach $_ for values %MAP;
2391	};	3548	warn "reattaching attachments to players";
		3549	reattach $_ for values %PLAYER;
2392		3550
2393	if ($@) {	3551	warn "leaving sync_job";
		3552
		3553	1
		3554	} or do {
2394	warn $@;	3555	warn $@;
2395	warn "error while reloading, exiting.";	3556	warn "error while reloading, exiting.";
2396	exit 1;	3557	exit 1;
2397	}	3558	};
2398		3559
2399	warn "reloaded successfully";	3560	warn "reloaded";
2400	};	3561	};
2401		3562
2402	#############################################################################	3563	our $RELOAD_WATCHER; # used only during reload
2403		3564
2404	unless ($LINK_MAP) {	3565	sub reload_perl() {
2405	$LINK_MAP = cf::map::new;	3566	# doing reload synchronously and two reloads happen back-to-back,
		3567	# coro crashes during coro_state_free->destroy here.
2406		3568
2407	$LINK_MAP->width (41);	3569	$RELOAD_WATCHER ||= EV::timer 0, 0, sub {
2408	$LINK_MAP->height (41);	3570	undef $RELOAD_WATCHER;
2409	$LINK_MAP->alloc;	3571	do_reload_perl;
2410	$LINK_MAP->path ("{link}");	3572	};
2411	$LINK_MAP->{path} = bless { path => "{link}" }, "cf::path";
2412	$LINK_MAP->in_memory (MAP_IN_MEMORY);
2413
2414	# dirty hack because... archetypes are not yet loaded
2415	Event->timer (
2416	after => 10,
2417	cb => sub {
2418	$_[0]->w->cancel;
2419
2420	# provide some exits "home"
2421	my $exit = cf::object::new "exit";
2422
2423	$exit->slaying ($EMERGENCY_POSITION->[0]);
2424	$exit->stats->hp ($EMERGENCY_POSITION->[1]);
2425	$exit->stats->sp ($EMERGENCY_POSITION->[2]);
2426
2427	$LINK_MAP->insert ($exit->clone, 19, 19);
2428	$LINK_MAP->insert ($exit->clone, 19, 20);
2429	$LINK_MAP->insert ($exit->clone, 19, 21);
2430	$LINK_MAP->insert ($exit->clone, 20, 19);
2431	$LINK_MAP->insert ($exit->clone, 20, 21);
2432	$LINK_MAP->insert ($exit->clone, 21, 19);
2433	$LINK_MAP->insert ($exit->clone, 21, 20);
2434	$LINK_MAP->insert ($exit->clone, 21, 21);
2435
2436	$exit->destroy;
2437	});
2438
2439	$LINK_MAP->{deny_save} = 1;
2440	$LINK_MAP->{deny_reset} = 1;
2441
2442	$cf::MAP{$LINK_MAP->path} = $LINK_MAP;
2443	}	3573	}
2444
2445	register "<global>", __PACKAGE__;
2446		3574
2447	register_command "reload" => sub {	3575	register_command "reload" => sub {
2448	my ($who, $arg) = @_;	3576	my ($who, $arg) = @_;
2449		3577
2450	if ($who->flag (FLAG_WIZ)) {	3578	if ($who->flag (FLAG_WIZ)) {
2451	$who->message ("start of reload.");
2452	reload;
2453	$who->message ("end of reload.");	3579	$who->message ("reloading server.");
		3580	async {
		3581	$Coro::current->{desc} = "perl_reload";
		3582	reload_perl;
		3583	};
2454	}	3584	}
2455	};	3585	};
2456		3586
2457	unshift @INC, $LIBDIR;	3587	unshift @INC, $LIBDIR;
2458		3588
2459	$TICK_WATCHER = Event->timer (	3589	my $bug_warning = 0;
2460	reentrant => 0,	3590
2461	prio => 0,	3591	our @WAIT_FOR_TICK;
2462	at => $NEXT_TICK || $TICK,	3592	our @WAIT_FOR_TICK_BEGIN;
2463	data => WF_AUTOCANCEL,	3593
2464	cb => sub {	3594	sub wait_for_tick {
		3595	return unless $TICK_WATCHER->is_active;
		3596	return if $Coro::current == $Coro::main;
		3597
		3598	my $signal = new Coro::Signal;
		3599	push @WAIT_FOR_TICK, $signal;
		3600	$signal->wait;
		3601	}
		3602
		3603	sub wait_for_tick_begin {
		3604	return unless $TICK_WATCHER->is_active;
		3605	return if $Coro::current == $Coro::main;
		3606
		3607	my $signal = new Coro::Signal;
		3608	push @WAIT_FOR_TICK_BEGIN, $signal;
		3609	$signal->wait;
		3610	}
		3611
		3612	$TICK_WATCHER = EV::periodic_ns 0, $TICK, 0, sub {
		3613	if ($Coro::current != $Coro::main) {
		3614	Carp::cluck "major BUG: server tick called outside of main coro, skipping it"
		3615	unless ++$bug_warning > 10;
		3616	return;
		3617	}
		3618
		3619	$NOW = $tick_start = EV::now;
		3620
2465	cf::server_tick; # one server iteration	3621	cf::server_tick; # one server iteration
		3622
2466	$RUNTIME += $TICK;	3623	$RUNTIME += $TICK;
2467	$NEXT_TICK += $TICK;	3624	$NEXT_TICK = $_[0]->at;
2468		3625
2469	$WAIT_FOR_TICK->broadcast;	3626	if ($NOW >= $NEXT_RUNTIME_WRITE) {
2470	$WAIT_FOR_TICK_ONE->send if $WAIT_FOR_TICK_ONE->awaited;	3627	$NEXT_RUNTIME_WRITE = List::Util::max $NEXT_RUNTIME_WRITE + 10, $NOW + 5.;
2471		3628	Coro::async_pool {
2472	# if we are delayed by four ticks or more, skip them all	3629	$Coro::current->{desc} = "runtime saver";
2473	$NEXT_TICK = Event::time if Event::time >= $NEXT_TICK + $TICK * 4;
2474
2475	$TICK_WATCHER->at ($NEXT_TICK);
2476	$TICK_WATCHER->start;
2477	},
2478	);
2479
2480	IO::AIO::max_poll_time $TICK * 0.2;
2481
2482	Event->io (
2483	fd => IO::AIO::poll_fileno,
2484	poll => 'r',
2485	prio => 5,
2486	data => WF_AUTOCANCEL,
2487	cb => \&IO::AIO::poll_cb,
2488	);
2489
2490	Event->timer (
2491	data => WF_AUTOCANCEL,
2492	after => 0,
2493	interval => 10,
2494	cb => sub {
2495	(Coro::unblock_sub {
2496	write_runtime	3630	write_runtime
2497	or warn "ERROR: unable to write runtime file: $!";	3631	or warn "ERROR: unable to write runtime file: $!";
2498	})->();	3632	};
2499	},	3633	}
2500	);	3634
		3635	if (my $sig = shift @WAIT_FOR_TICK_BEGIN) {
		3636	$sig->send;
		3637	}
		3638	while (my $sig = shift @WAIT_FOR_TICK) {
		3639	$sig->send;
		3640	}
		3641
		3642	$LOAD = ($NOW - $tick_start) / $TICK;
		3643	$LOADAVG = $LOADAVG * 0.75 + $LOAD * 0.25;
		3644
		3645	_post_tick;
		3646	};
		3647	$TICK_WATCHER->priority (EV::MAXPRI);
		3648
		3649	{
		3650	# configure BDB
		3651
		3652	BDB::min_parallel 8;
		3653	BDB::max_poll_reqs $TICK * 0.1;
		3654	$Coro::BDB::WATCHER->priority (1);
		3655
		3656	unless ($DB_ENV) {
		3657	$DB_ENV = BDB::db_env_create;
		3658	$DB_ENV->set_flags (BDB::AUTO_COMMIT | BDB::REGION_INIT | BDB::TXN_NOSYNC
		3659	| BDB::LOG_AUTOREMOVE, 1);
		3660	$DB_ENV->set_timeout (30, BDB::SET_TXN_TIMEOUT);
		3661	$DB_ENV->set_timeout (30, BDB::SET_LOCK_TIMEOUT);
		3662
		3663	cf::sync_job {
		3664	eval {
		3665	BDB::db_env_open
		3666	$DB_ENV,
		3667	$BDBDIR,
		3668	BDB::INIT_LOCK | BDB::INIT_LOG | BDB::INIT_MPOOL | BDB::INIT_TXN
		3669	| BDB::RECOVER | BDB::REGISTER | BDB::USE_ENVIRON | BDB::CREATE,
		3670	0666;
		3671
		3672	cf::cleanup "db_env_open($BDBDIR): $!" if $!;
		3673	};
		3674
		3675	cf::cleanup "db_env_open(db): $@" if $@;
		3676	};
		3677	}
		3678
		3679	$BDB_DEADLOCK_WATCHER = EV::periodic 0, 3, 0, sub {
		3680	BDB::db_env_lock_detect $DB_ENV, 0, BDB::LOCK_DEFAULT, 0, sub { };
		3681	};
		3682	$BDB_CHECKPOINT_WATCHER = EV::periodic 0, 60, 0, sub {
		3683	BDB::db_env_txn_checkpoint $DB_ENV, 0, 0, 0, sub { };
		3684	};
		3685	$BDB_TRICKLE_WATCHER = EV::periodic 0, 10, 0, sub {
		3686	BDB::db_env_memp_trickle $DB_ENV, 20, 0, sub { };
		3687	};
		3688	}
		3689
		3690	{
		3691	# configure IO::AIO
		3692
		3693	IO::AIO::min_parallel 8;
		3694	IO::AIO::max_poll_time $TICK * 0.1;
		3695	$Coro::AIO::WATCHER->priority (1);
		3696	}
		3697
		3698	my $_log_backtrace;
		3699
		3700	sub _log_backtrace {
		3701	my ($msg, @addr) = @_;
		3702
		3703	$msg =~ s/\n//;
		3704
		3705	# limit the # of concurrent backtraces
		3706	if ($_log_backtrace < 2) {
		3707	++$_log_backtrace;
		3708	async {
		3709	$Coro::current->{desc} = "abt $msg";
		3710
		3711	my @bt = fork_call {
		3712	@addr = map { sprintf "%x", $_ } @addr;
		3713	my $self = (-f "/proc/$$/exe") ? "/proc/$$/exe" : $^X;
		3714	open my $fh, "exec addr2line -C -f -i -e \Q$self\E @addr 2>&1 |"
		3715	or die "addr2line: $!";
		3716
		3717	my @funcs;
		3718	my @res = <$fh>;
		3719	chomp for @res;
		3720	while (@res) {
		3721	my ($func, $line) = splice @res, 0, 2, ();
		3722	push @funcs, "[$func] $line";
		3723	}
		3724
		3725	@funcs
		3726	};
		3727
		3728	LOG llevInfo, "[ABT] $msg\n";
		3729	LOG llevInfo, "[ABT] $_\n" for @bt;
		3730	--$_log_backtrace;
		3731	};
		3732	} else {
		3733	LOG llevInfo, "[ABT] $msg\n";
		3734	LOG llevInfo, "[ABT] [suppressed]\n";
		3735	}
		3736	}
		3737
		3738	# load additional modules
		3739	use cf::pod;
2501		3740
2502	END { cf::emergency_save }	3741	END { cf::emergency_save }
2503		3742
2504	1	3743	1
2505		3744

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